阅读说明：本技术 一种锂电池盖板的真空氦检设备 (Vacuum helium detection equipment for lithium battery cover plate ) 是由 吴雄志 李来芳 于 2021-07-29 设计创作，主要内容包括：本发明公开一种锂电池盖板的真空氦检设备,包括工作台；进料传送带；产品对中装置；氦检上模机构；氦检下模机构；喷氦机构；复检装置；良品传送带以及不良品传送带。本发明通过产品对中装置、氦检上模机构、氦检下模机构、喷氦机构、复检装置并结合各组机械手以及各组传送带的配合,提高了对锂电池盖板的氦检效率以及复检效率,自动化程度高。(The invention discloses vacuum helium testing equipment for a lithium battery cover plate, which comprises a workbench, wherein the workbench is provided with a plurality of working positions; a feed conveyor; a product centering device; a helium detection upper die mechanism; a helium detection lower die mechanism; a helium spraying mechanism; a rechecking device; non-defective products conveyer belt and defective products conveyer belt. According to the helium detection device, the helium detection upper die mechanism, the helium detection lower die mechanism, the helium spraying mechanism and the rechecking device are combined with the matching of each group of mechanical arms and each group of conveyor belts, so that the helium detection efficiency and the rechecking efficiency of the lithium battery cover plate are improved, and the automation degree is high.)

1. The utility model provides a vacuum helium of lithium cell apron examines equipment which characterized in that includes:

a table (1);

a feeding conveyor belt (2) arranged on the worktable (1);

the product centering devices (3) are arranged on the workbench (1) in parallel, three groups of three-claw material taking mechanical arms (4) erected on the workbench (1) are arranged between the product centering devices (3) and the feeding conveyor belt (2), and the three groups of product centering devices (3) are respectively used for receiving the three groups of products grabbed and conveyed by the three-claw material taking mechanical arms (4) on the feeding conveyor belt (2) and respectively centering and positioning the three groups of products;

helium checking upper die mechanism, which comprises a supporting table (5) erected on a workbench (1) and nine groups of upper die assemblies (6) arranged side by side on the upper end face of the supporting table (5), wherein each upper die assembly (6) comprises a cylinder driving group (600) consisting of two groups of cylinders, the driving ends of the cylinder driving groups (600) vertically penetrate through the table face of the supporting table (5) downwards and are connected with a mounting plate (601), an air suction box (602) is mounted on the lower end face of the mounting plate (601), an air suction main channel (603) and three groups of air suction component channels (604) communicated with the air suction main channel (603) and provided with air suction ports on the lower end face of the air suction box (602) are arranged in the air suction box (602), wherein each three groups of air suction boxes (602) are communicated with an external vacuum pump of equipment through a main pipe, an electromagnetic valve switch is arranged on the main pipe, and an upper die (605) is arranged below the air suction box (602), the upper die (605) is provided with three groups of openings which respectively correspond to air suction ports of the three groups of air suction branch channels (604), two diagonal angles of the upper end surface of the mounting plate (601) are provided with clamping cylinders (609) with shaft ends deviating and axial horizontal through supports (608), the driving ends of the two groups of clamping cylinders (609) are respectively provided with a ball hinge seat (610), the lower ends of the two groups of ball hinge seats (610) are hinged to the upper end of a bent swing arm (611), the middle parts of the two groups of swing arms (611) are in bolted connection with the lower ends of the adjacent supports (608), the lower ends of the two groups of swing arms (611) are provided with riding wheels (612), and the two groups of riding wheels (612) are respectively supported on the lower end surfaces of riding lugs (613) arranged on the two sides of the upper die (605);

helium detection lower die mechanism, it includes rotatory lower mould backup pad (700) of setting on workstation (1) through motor drive, backup pad (700) up end is equipped with eighteen groups and is two rows of lower moulds (701) that set up, wherein one row of lower mould (701) are located and go up mould (605) under and the one-to-one in nine groups of last mould subassembly (6) side by side on brace table (5), backup pad (700) are adjacent all to be equipped with three helium box (702) on the both sides edge of two rows of lower moulds (701), and a set of helium box (702) correspond the product arrangement groove inner chamber on three groups of lower moulds (701) of pipe connection, and the lower terminal surface of helium box (702) is equipped with two rather than the communicating gas connection mouth of inner chamber, erects three-jaw material loading manipulator (8) that set up on workstation (1) between another row of lower mould (701) and product centering device (3), three-jaw material loading manipulator (8) are used for snatching three groups of product centering device (3) department and convey to two rows of lower mould (3) down and send three groups of product to Sequentially placing at the die (701);

the helium spraying mechanism (9) comprises three groups which are arranged on the workbench (1) side by side, the three groups of helium spraying mechanisms respectively correspond to three groups of helium boxes (702) on one side of the supporting plate (700), the helium spraying mechanism comprises a base (900) arranged on the workbench (1), a helium spraying driving cylinder (901) and a door-shaped seat (902) are arranged on the base (900), the driving end of the helium spraying driving cylinder (901) vertically penetrates through a top beam of the door-shaped seat (902) and is provided with a top plate (903), two groups of air guide pipes (904) vertically penetrating through the body are arranged on the top plate (903), pipe joints (905) connected with pipelines of the helium making machine outside the equipment are respectively arranged at the lower ends of the two groups of air guide pipes (904), air nozzles (906) correspondingly abutted with two groups of air receiving ports on the lower end face of the helium boxes (702) respectively are arranged at the upper ends of the air nozzles (906) and the top plate (903), and buffer springs (907) sleeved on the air guide pipes (904) are arranged between the upper end faces of the air nozzles (904), and the lower end surface of the top plate (903) is symmetrically provided with guide sliding rods (908) penetrating through a top beam of the door-shaped seat (902);

the rechecking device comprises a rechecking table (10), a rechecking support table (11) arranged on the rechecking table (10) and a turntable (12) which is driven by a motor to rotate and is arranged on the rechecking table (10), wherein a group of rechecking upper die assemblies (13) are arranged on the rechecking support table (11), the structures of the rechecking upper die assemblies (13) and the upper die assemblies (6) are the same, the working modes of the rechecking upper die assemblies are consistent, four groups of rechecking lower dies (14) in an annular array are arranged on the turntable (12), the structures of the rechecking lower dies (14) and the lower dies (701) are the same, the four groups of rechecking lower dies (14) are respectively matched with the rechecking upper die assemblies (13) under the rotating drive of the turntable (12), four groups of rechecking helium boxes (15) which are respectively adjacent to the four groups of rechecking lower dies (14) are arranged on the turntable (12), and the rechecking helium boxes (15) are the same as the helium boxes (702), the rechecking helium box (15) is communicated with a pipeline of an inner cavity of a product placing groove on the rechecking lower die (14), a rechecking helium spraying mechanism (16) adjacent to the rechecking upper die assembly (13) is further arranged on the rechecking platform (10), and the rechecking helium spraying mechanism (16) has the same structure and the same working mode as the helium spraying mechanism (9) and is correspondingly matched with the rechecking helium box (15);

non-defective products conveyer belt (17), defective products conveyer belt (18), the feed end of two sets of conveyer belts is taken and is all established on workstation (1), and the discharge end is taken and is established on reinspection platform (10), is equipped with nine claws material taking manipulator (19) of erectting at workstation (1) between one row of lower mould (701) that two sets of conveyer belts are adjacent to three claw material feeding manipulator (8), nine claws material taking manipulator (19) are located the single time and are snatched nine groups of products and are placed on non-defective products conveyer belt (17) and defective products conveyer belt (18) respectively with the non-defective products in nine groups of products according to the helium detection result of product at single row lower mould (701), are equipped with two sets of single claw material taking manipulator (20) of erectting on reinspection platform (10) between four sets of reinspection lower mould (14) on the discharge end of defective products conveyer belt (18) and carousel (12), and wherein a set of single claw material taking manipulator (20) are used for taking the defective products on defective products conveyer belt (18) in grades and place in reinspection platform (14) On the upper part, four groups of lower re-inspection dies (14) respectively receive defective products placed by a single-claw material taking manipulator (20) under the rotary drive of a turntable (12), the other group of single-claw material taking manipulator (20) is used for taking the products which are re-inspected on the lower re-inspection dies (14) and placing the products on a defective product conveyor belt (18), the four groups of lower re-inspection dies (14) are driven by the rotation of the turntable (12), products which are subjected to reinspection in the product placing groove are sequentially taken away by the group of single-claw material taking manipulators (20), a single-claw material returning manipulator (21) erected on the re-inspection platform (10) is arranged between the discharge ends of the good product conveyor belt (17) and the defective product conveyor belt (18), and the single-claw material returning mechanical hand (21) is used for completing the reinspection on the defective product conveyor belt (18) according to the reinspection result, taking the products which are judged to be good products away and placing the products on the good product conveyor belt (17).

2. The vacuum helium detection device for the lithium battery cover plate as claimed in claim 1, wherein the product centering device (3) comprises two groups of side plates (300) arranged on the workbench (1) and an open clamping cylinder (301) erected between the two groups of side plates (300), a transverse plate (302) is erected between the tops of the two groups of side plates (300), a circular opening (303) is arranged at the center of the transverse plate (302), a conical block (304) positioned at the circular opening (303) is arranged at the piston end of the open clamping cylinder (301), X-direction guide rails (305) and Y-direction guide rails (306) are symmetrically arranged on the left side and the right side of the upper end surface of the transverse plate (302), X-direction sliding strips (307) are arranged on the two groups of X-direction guide rails (305) in a sliding manner, Y-direction sliding strips (308) are arranged between the same side ends of the two groups of Y-direction guide rails (306) in a sliding manner, one ends of the two groups of X-direction sliding strips (307) adjacent to the circular opening (303) and one groups of Y-direction sliding strips (308) adjacent to the circular opening (303) are arranged on the two groups of Y-direction sliding strips adjacent to the two groups of Y-direction sliding strips The middle part of circular opening (303) one side all erects gyro wheel (309) that can contact with the inclined plane of toper piece (304), be connected with two sets of X of symmetry between the both sides of two sets of X to draw runner (307) and diaphragm (302) up end to reset extension spring (310), two sets of Y all are connected with Y to reset extension spring (311) between the homonymy end of draw runner (308), diaphragm (302) up end still erects through stand (312) and carries material board (313) that the placing product was used, two sets of X are equipped with vertical arm lock (314) to the one end symmetry that draw back from circular opening (303) of draw runner (307), two sets of the top symmetry of vertical arm lock (314) is equipped with centering clamp splice (315) that extend to the carriage board (313) up end left and right sides, and two sets of Y is equipped with vertical splint (316) to draw runner (308) one side symmetry that deviates from circular opening (303), and two sets of vertical splint (316) top symmetry is equipped with centering clamp splice (317) that extend to the both sides before carrying material board (313) upper end.

3. The vacuum helium testing equipment for the lithium battery cover plate according to claim 1, characterized in that three groups of air suction branch passages (604) respectively perform corresponding air suction work on a positive pole welding point, an explosion-proof sheet welding point and a negative pole welding point of the lithium battery cover plate on a lower die (701), two groups of air suction branch passages (604) corresponding to the positive pole welding point and the negative pole welding point in the three groups of air suction branch passages (604) are internally provided with a fixed seat (614), the fixed seat (614) is provided with a plurality of groups of air flow through holes (615) side by side, a top rod (616) vertically penetrating through a body of the air flow through holes (615) is arranged in the middle of the plurality of groups of air flow through holes (615), the upper end of the top rod (616) is in threaded connection with a limit nut (617), the lower end of the top rod (616) extends out of an air suction port of the air suction branch passage (604) and penetrates through an opening on an upper die (605), and the lower end of the top block (618) is arranged at the lower end of the top rod, and a spring (619) sleeved on the ejector rod (616) body is arranged between the ejector block (618) and the fixed seat (614).

4. The vacuum helium testing equipment for the lithium battery cover plate according to claim 1, wherein the upper side and the lower side of the opening on the upper die (605) are respectively provided with a sealing ring (620) which can respectively form a seal with the periphery of the air suction port of the air suction subchannel (604) and the periphery of the welding point of the lithium battery cover plate on the lower die (701).

5. The vacuum helium testing equipment for the lithium battery cover plate as claimed in claim 1, wherein the upper end face of the mounting plate (601) is symmetrically provided with guide rods (621) vertically penetrating through the table top of the support table (5).

6. The vacuum helium testing equipment for the lithium battery cover plate according to claim 1, wherein the three-jaw material taking manipulator (4) and the three-jaw material feeding manipulator (8) are identical in structure and respectively comprise a linear transmission mechanism A (400; 800) erected on a workbench (1) and a moving plate A (401; 801) connected to the driving end of the linear transmission mechanism A (400; 800), three groups of vertical sliding rails A (402; 802) are arranged on the moving plate A (401; 801), vertical sliding strips A (403; 803) are arranged on the three groups of vertical sliding rails A (402; 802) in a sliding mode, three groups of axial vertical material jaw driving cylinders A (404; 804) are further arranged on the moving plate A (401; 801), the three groups of material jaw driving cylinders A (404; 804) are respectively connected with the three groups of vertical sliding strips A (403; 803) in a driving mode, suction cup seats A (405; 805) are arranged at the lower ends of the three groups of vertical sliding strips A (403; 803), the lower ends of the three groups of sucker seats A (405; 805) are provided with a plurality of groups of suckers A (406; 806).

7. The vacuum helium testing equipment for the lithium battery cover plate according to claim 1, characterized in that nine groups of products taken by the nine-claw material taking manipulator (19) are divided into three grabbed units, each three groups of products adjacent in sequence in the single row of lower dies (901) are one grabbed unit, the nine-claw material taking manipulator (19) takes the products of the three grabbed units at the two rows of lower dies (701) at a time and places one or more grabbed units of the three grabbed units with defective products on a defective product conveyor belt (18) according to the helium testing result of the products, one or more grabbed units without defective products are placed on a defective product conveyor belt (17), the nine-claw material taking manipulator (19) comprises two groups of guide rail supports (1901) erected on a workbench (1), and the two groups of guide rail supports (1901) are provided with horizontal guide rails (1902) which are parallel, a moving plate B (1903) is arranged between the two groups of horizontal sliding rails (1902) in a sliding manner, a linear transmission mechanism B (1904) with a driving direction parallel to the direction of the sliding rails (1902) is arranged on one group of guide rail supports (1901), the driving end of the linear transmission mechanism B (1904) is connected with the moving plate B (1903), three groups of cylinder supports (1905) are arranged on the lower end face of the moving plate B (1903) at equal intervals, three groups of cylinder supports (1905) are respectively provided with a vertical sliding rail B (1906) and an axial vertical material claw driving cylinder B (1907), vertical sliding bars B (1908) are arranged on the three groups of vertical sliding rails B (1906), the driving ends of the three groups of material claw driving cylinders B (1907) are respectively connected with three groups of vertical sliding bars B (1908), the lower ends of the three groups of vertical sliding bars B (1908) are respectively provided with a mounting plate B (1909), and three groups of sucker bases B (1910) are arranged on the lower end face of each mounting plate B (1909), the lower end of each group of the sucker seat B (1910) is provided with a plurality of groups of suckers B (1911).

8. The vacuum helium testing apparatus for a lithium battery cover plate according to claim 1, wherein: the single-claw material taking manipulator (20) and the single-claw material returning manipulator (21) both comprise a linear transmission mechanism C (2000; 2100) erected on the reinspection platform (10) and a moving plate C (2001; 2101) connected to the driving end of the linear transmission mechanism C (2000; 2100), a vertical slide rail C (2002; 2102) and a material claw driving cylinder C (2003; 2103) which is vertical in the axial direction are arranged on the moving plate C (2001; 2101), the vertical sliding rail C (2002; 2102) is provided with a vertical sliding strip C (2004; 2104) in a sliding mode, the material claw driving cylinder C (2003; 2103) is connected with the vertical sliding strip C (2004; 2104) in a driving mode, the lower end of the vertical sliding strip C (2004; 2104) is provided with a sucker seat C (2005; 2105), and the lower end of each sucker seat C (2005; 2105) is provided with a plurality of groups of suckers C (2006; 2106).

9. The vacuum helium testing equipment for the lithium battery cover plate is characterized in that the driving end of a clamping cylinder (609) in the upper die assembly (6) is kept in a protruding state under the working state.

10. The vacuum helium testing equipment for the lithium battery cover plate according to claim 1, wherein the upper die (605) is provided with a positioning hole (606), and the lower end surface of the degassing box (602) is provided with a positioning pin (607) matched with the positioning hole (606).

Technical Field

The invention relates to a lithium battery cover plate detection technology, in particular to vacuum helium detection equipment for a lithium battery cover plate.

Background

Helium detection is to fill helium with a certain pressure after the detected product is evacuated, a vacuum space with a certain vacuum degree requirement is arranged outside the detected product, and the vacuum space is connected with a leak port of a helium detector. If the workpiece has leakage, helium leaking into the vacuum space can be detected by the helium detector.

In modern lithium battery cover plate production process, need weld positive post, negative pole post, explosion-proof piece on the lithium battery cover plate, need carry out the leakproofness to three welding points and detect, most detection technology degree of automation is low on the existing market, and work efficiency can't satisfy the supply demand.

Disclosure of Invention

The invention aims to provide vacuum helium detection equipment for a lithium battery cover plate, which aims to solve the technical problem.

In order to solve the technical problems, the invention adopts the technical scheme that:

a vacuum helium test equipment for a lithium battery cover plate comprises:

a work table;

a feeding conveyor belt arranged on the workbench;

the three product centering devices are respectively used for receiving three groups of products which are grabbed and conveyed by the three-claw material fetching manipulator on the feeding conveyor belt and respectively centering and positioning the three groups of products;

helium examines upper die mechanism, it includes erects the brace table on the workstation and sets up side by side nine groups of last mould subassemblies on the brace table up end, go up the mould subassembly and include the cylinder drive group of compriseing two sets of cylinders, the drive end of cylinder drive group all downwards vertically runs through the brace table mesa and is connected with the mounting panel, the terminal surface is installed and is taken out the air box under the mounting panel, the inside main air channel and with three groups of inspiration branch passageways of main air channel intercommunication and induction port terminal surface under the box of taking out air, wherein, every three groups of air box of taking out is responsible for and is linked together the outside vacuum pump of equipment through one, and is responsible for and is equipped with the solenoid valve switch, takes out the box below and is equipped with the mould, is equipped with three groups on the mould and corresponds three groups respectively the opening of inspiration branch passageway induction port, two opposite angles department of mounting panel up end have the axle end to deviate from and axial horizontally centre gripping cylinder through the support mounting, the driving ends of the two groups of clamping cylinders are respectively provided with a spherical hinge seat, the lower ends of the two groups of spherical hinge seats are hinged with the upper ends of bent swing arms, the middle parts of the two groups of swing arms are in bolted connection with the lower ends of adjacent supports, the lower ends of the two groups of swing arms are provided with supporting wheels, and the two groups of supporting wheels are respectively supported on the lower end surfaces of supporting lugs arranged on the two sides of an upper die;

the helium detection lower die mechanism comprises a lower die supporting plate which is driven by a motor to rotate and arranged on a workbench, eighteen groups of lower dies which are arranged in two rows are arranged on the upper end surface of the supporting plate, one row of lower dies are positioned under the upper dies in the nine groups of upper die assemblies which are arranged side by side on the supporting platform and are in one-to-one correspondence, three groups of helium boxes are arranged on two side edges of the supporting plate adjacent to the two rows of lower dies, one group of helium box corresponding pipelines are connected with inner cavities of product accommodating grooves on the three groups of lower dies, two gas receiving ports communicated with the inner cavities of the helium boxes are arranged on the lower end surface of the helium boxes, a three-jaw feeding manipulator arranged on the workbench is erected between the other row of lower dies and the product centering device, and the three groups of products at the product centering device are grabbed and are conveyed to the two rows of lower dies to be arranged in sequence;

the helium spraying mechanism comprises three groups of helium spraying mechanisms which are arranged on a workbench side by side, the three groups of helium spraying mechanisms respectively correspond to three groups of helium boxes on one side of a supporting plate, the helium spraying mechanism comprises a base arranged on the workbench, a helium spraying driving cylinder and a door-shaped seat are arranged on the base, a driving end of the helium spraying driving cylinder vertically penetrates through a top cross beam of the door-shaped seat and is provided with a top plate, two groups of air guide tubes vertically penetrating through a body of the top plate are arranged on the top plate, tube joints connected with a helium making machine pipeline outside the equipment are arranged at the lower ends of the two groups of air guide tubes, air nozzles respectively corresponding to two groups of air receiving ports on the lower end surface of the helium box are arranged at the upper ends of the two groups of air guide tubes, a buffer spring sleeved on the air guide tube body is arranged between the air nozzles and the upper end surface of the top plate, and guide slide rods penetrating through the top cross beam of the door-shaped seat are symmetrically arranged on the lower end surface of the top plate;

the rechecking device comprises a rechecking table, a rechecking support table arranged on the rechecking table and a turntable which is driven by a motor to rotate and arranged on the rechecking table, wherein a group of rechecking upper die assemblies are arranged on the rechecking support table, the structure of the rechecking upper die assemblies is the same as that of the upper die assemblies, the working mode of the rechecking upper die assemblies is consistent, four groups of rechecking lower dies in an annular array are arranged on the turntable, the structure of the rechecking lower dies is the same as that of the lower dies, the four groups of rechecking lower dies are respectively matched with the rechecking upper die assemblies under the rotation drive of the turntable, four groups of rechecking helium boxes which are respectively adjacent to the four groups of rechecking lower dies are arranged on the turntable, the rechecking helium boxes are identical in structure with the helium boxes and are communicated with the inner cavity pipeline of the product installation grooves on the rechecking lower dies, a rechecking helium spraying mechanism adjacent to the rechecking upper die assemblies is also arranged on the rechecking table, and the rechecking helium spraying mechanism is identical in structure and working mode with the helium spraying mechanism, correspondingly matching with the rechecking helium box;

the conveying device comprises a good product conveying belt and a defective product conveying belt, wherein the feeding ends of the two groups of conveying belts are respectively arranged on a workbench, the discharging ends of the two groups of conveying belts are arranged on a rechecking table, nine-claw material taking mechanical arms erected on the workbench are arranged between one row of lower dies of the two groups of conveying belts adjacent to the three-claw material feeding mechanical arms, the nine-claw material taking mechanical arms are used for grabbing nine groups of products at the single row of lower dies and respectively placing the good products and the defective products in the nine groups of products on the good product conveying belt and the defective product conveying belt according to helium detection results of the products, the two groups of single-claw material taking mechanical arms erected on the rechecking table are arranged between the discharging ends of the defective product conveying belts and the four groups of rechecking lower dies on the turntable, one group of the single-claw material taking mechanical arms are used for taking the defective products on the defective product conveying belt in a grading manner and placing the defective products on the rechecking lower dies, and the four groups of rechecking lower dies are respectively used for receiving the defective products placed by the single-claw material taking mechanical arms under the rotary drive of the turntable, the other group of single-claw material taking mechanical arms are used for taking away products which are subjected to re-inspection on the re-inspection lower dies and placing the products on the defective product conveying belt, the four groups of re-inspection lower dies are driven by the rotation of the rotary table, the products which are subjected to re-inspection in the product placing grooves are sequentially taken away by the group of single-claw material taking mechanical arms, a single-claw material returning mechanical arm erected on the re-inspection table is arranged between the discharge ends of the good product conveying belt and the defective product conveying belt, and the single-claw material returning mechanical arms are used for taking away the products which are subjected to re-inspection on the defective product conveying belt and judged to be good products according to the re-inspection result and placing the products on the good product conveying belt.

Further, the product centering device comprises two groups of side plates arranged on the workbench and an opening and clamping cylinder erected between the two groups of side plates, a transverse plate is erected between the tops of the two groups of side plates, a circular opening is arranged at the center of the transverse plate, a conical block positioned at the circular opening is arranged at the piston end of the opening and clamping cylinder, X-direction guide rails and Y-direction guide rails are symmetrically arranged on the left side and the right side of the upper end surface of the transverse plate, X-direction slide bars are arranged on the two groups of X-direction guide rails in a sliding manner, Y-direction slide bars are arranged between the same side ends of the two groups of Y-direction guide rails in a sliding manner, rollers capable of contacting with the inclined surface of the conical block are erected at one end of the two groups of X-direction slide bars and at the middle part of the two groups of Y-direction slide bars adjacent to one side of the circular opening, two groups of X-direction return tension springs are symmetrically connected between the two sides of the two groups of X-direction slide bars and the upper end surface of the transverse plate, and Y-direction return tension springs are connected between the same side ends of the two groups of Y-direction slide bars, the diaphragm up end still is equipped with the year flitch of placing the product usefulness through the stand frame, and two sets of X are equipped with vertical arm lock to the draw runner one end symmetry that deviates from circular open-ended, and is two sets of the top symmetry of vertical arm lock is equipped with the centering clamp splice that extends to year flitch up end left and right sides, and two sets of Y are equipped with vertical splint to draw runner one side symmetry that deviates from circular open-ended, and is two sets of the top symmetry of vertical splint is equipped with the centering clamp splice that extends to both sides around carrying the flitch up end.

Further, three groups inhale and divide the passageway to carry out the work of breathing in that corresponds to anodal post welding point, explosion-proof piece welding point, negative pole post welding point of lithium cell apron on the lower mould respectively, three groups inhale and divide and be equipped with the fixing base in the passageway to two sets of branch passageways of breathing in that correspond anodal post welding point and negative pole post welding point in the passageway, be equipped with multiunit air current clearing hole on the fixing base side by side, be located the multiunit department is equipped with the vertical ejector pin that runs through its body in the middle of the air current clearing hole, the upper end threaded connection of ejector pin has stop nut, and the ejector pin lower extreme stretches out and passes the opening on the mould from the induction port of inhaling branch passageway, and its lower extreme is equipped with the kicking block, be equipped with the spring of cover on the ejector pin body between kicking block and the fixing base.

Furthermore, the upper side and the lower side of the opening on the upper die are respectively provided with a sealing ring which can respectively form sealing with the periphery of an air suction port of the air suction sub-channel and the periphery of a welding point of the lithium battery cover plate on the lower die.

Furthermore, the upper end surface of the mounting plate is symmetrically provided with guide rods which vertically penetrate through the table surface of the supporting table.

Further, three-jaw gets material manipulator, three-jaw material loading manipulator structure is the same, all including erectting linear drive mechanism A on the workstation and connecting the movable plate A of linear drive mechanism A drive end, be equipped with three vertical slide rail A of group on the movable plate A, three groups all slide on the vertical slide rail A and be equipped with vertical draw runner A, still be equipped with three axial vertical material claws of group on the movable plate A and drive actuating cylinder A, three group material claws drive actuating cylinder A and drive three vertical draw runner A of group of connection respectively, and three vertical draw runner A's of group lower extreme all is equipped with sucking disc seat A, three groups sucking disc seat A lower extreme all is equipped with multiunit sucking disc A.

Furthermore, nine groups of products taken by the nine-claw material taking manipulator are divided into three grabbed units, every three groups of products adjacent in sequence in the single-row lower die are one grabbed unit, the nine-claw material taking manipulator takes the products of the three grabbed units at the single-row lower die at a single time and places one or more grabbed units with defective products in the three grabbed units on a defective product conveying belt according to the helium detection result of the products, the grabbed units without defective products are placed on a good product conveying belt, the nine-claw material taking manipulator comprises two groups of guide rail supports erected on a workbench, horizontal slide rails with parallel guides are arranged on the two groups of guide rail supports, a linear transmission mechanism B with a driving direction parallel to the guide direction of the slide rails is arranged on one group of the guide rail supports, the driving end of the linear transmission mechanism B is connected with the moving plate B, terminal surface equidistance is equipped with three cylinder support of group, three groups under the movable plate B cylinder support all is equipped with vertical slide rail B and the axial is vertical material claw and drives actuating cylinder B, three groups all be equipped with vertical draw runner B on the vertical slide rail B, three groups the material claw drives actuating cylinder B's drive end and connects three groups respectively vertical draw runner B, three vertical draw runner B's of group lower extreme all is equipped with mounting panel B, every group the terminal surface all is equipped with three sucking disc seats B of group under the mounting panel B, every group sucking disc seat B lower extreme all is equipped with multiunit sucking disc B.

Further, single claw gets material manipulator, single claw feed back manipulator all including erect at the linear drive mechanism C of reinspection bench and connect the movable plate C of linear drive mechanism C drive end, be equipped with vertical slide rail C and the vertical material claw of axial on the movable plate C and drive actuating cylinder C, it is equipped with vertical draw runner C to slide on the vertical slide rail C, the material claw drives actuating cylinder C drive and connects vertical draw runner C, vertical draw runner C's lower extreme is equipped with sucking disc seat C, sucking disc seat C lower extreme all is equipped with multiunit sucking disc C.

Further, the driving end of a clamping cylinder in the upper die assembly is kept in an extending state in a working state.

Furthermore, the upper die is provided with a positioning hole, and the lower end face of the air exhaust box is provided with a positioning pin matched with the positioning hole.

The invention has the beneficial effects that:

according to the helium detection device, the helium detection upper die mechanism, the helium detection lower die mechanism, the helium spraying mechanism and the rechecking device are combined with the matching of each group of mechanical arms and each group of conveyor belts, so that the helium detection efficiency and the rechecking efficiency of the lithium battery cover plate are improved, and the automation degree is high.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a top view of the present invention.

Fig. 2 is a perspective view of the present invention.

FIG. 3 is a schematic diagram of the matching of the upper helium testing mold mechanism and the lower helium testing mold mechanism of the present invention.

Fig. 4 is a perspective view of the upper die assembly and lower die mating structure of the present invention.

FIG. 5 is a front view of the mating structure of the upper and lower die assemblies of the present invention.

Fig. 6 is a schematic view of the mating of the pumping box of the present invention with a lower mold.

Fig. 7 is a perspective view of the matching structure of the fixing seat and the ejector rod in the air pumping box of the invention.

Fig. 8 is a perspective view of the lower die structure of the present invention.

Fig. 9 is a perspective view of the structure of the helium spray mechanism of the present invention.

Fig. 10 is a perspective view showing the structure of the reinspection device of the present invention.

Fig. 11 is a rear view of the review device of the present invention.

Figure 12 is a perspective view of the product centering device of the present invention.

Figure 13 is a top view of a partial structure of the product centering device of the present invention.

Figure 14 is a perspective view of the three-jaw material extraction robot of the present invention.

Figure 15 is a front view of the three-jaw loading robot of the present invention.

Fig. 16 is a plan view showing the structure of a nine-claw material-taking robot according to the present invention.

Fig. 17 is a front view of the nine-claw material-taking robot of the present invention.

Figure 18 is an elevational view of the configuration of the single jaw material extractor robot of the present invention.

Fig. 19 is a front view of the configuration of the single-claw feed-back robot of the present invention.

In the figure: 1. a work table; 2. a feed conveyor;

3. the product centering device comprises a product centering device 300, side plates 301, a clamp opening cylinder 302, a transverse plate 303, a circular opening 304, a conical block 305, an X-direction guide rail 306, a Y-direction guide rail 307, an X-direction slide bar 308, a Y-direction slide bar 309, a roller 310, an X-direction reset tension spring 311, a Y-direction reset tension spring 312, an upright post 313, a material carrying plate 314, vertical clamping arms 315, a centering clamping block 316, a vertical clamping plate 317 and a centering clamping bar;

4. the three-jaw material taking manipulator comprises a 400, a first linear transmission mechanism A, 401, a first moving plate A, 402, a first vertical slide rail A, 403, a first vertical slide bar A, 404, a first material jaw driving cylinder A, 405, a first suction disc seat A, 406 and a first suction disc A;

5. a support table;

6. the device comprises an upper die assembly, a 600, an air cylinder driving group, 601, a mounting plate, 602, an air exhaust box, 603, a main air suction channel, 604, an air suction sub-channel, 605, an upper die, 606, a positioning hole, 607, a positioning pin, 608, a support, 609, a clamping air cylinder, 610, a spherical hinge seat, 611, a swing arm, 612, a riding wheel, 613, a riding lug, 614, a fixed seat, 615, an air flow through hole, 616, a push rod, 617, a limit nut, 618, a top block, 619, a spring, 620, a sealing ring, 621 and a guide rod;

700. a lower die supporting plate 701, a lower die 702 and a helium box;

8. the three-jaw feeding manipulator comprises a three-jaw feeding manipulator 800, a second linear transmission mechanism A, 801, a second moving plate A, 802, a second vertical slide rail A, 803, a second vertical slide bar A, 804, a second jaw driving cylinder A, 805, a second sucker seat A, 806 and a second sucker A;

9. the helium spraying mechanism comprises a helium spraying mechanism 900, a base 901, a helium spraying driving cylinder 902, a door-shaped seat 903, a top plate 904, an air guide pipe 905, a pipe joint 906, an air nozzle 907, a buffer spring 908 and a guide sliding rod;

10. a rechecking table; 11. rechecking the support table; 12. a turntable; 13. rechecking the upper die assembly; 14. re-checking the lower die; 15. rechecking the helium box; 16. rechecking the helium spraying mechanism; 17. a good product conveying belt; 18. a defective product conveyor belt;

19. a nine-claw material taking manipulator 1901, a guide rail support, 1902, a horizontal slide rail 1903, a moving plate B, 1904, a linear transmission mechanism B, 1905, a cylinder support, 1906, a vertical slide rail B, 1907, a material claw driving cylinder B, 1908, a vertical slide bar B, 1909, a mounting plate B, 1910, a suction cup seat B, 1911 and a suction cup B;

20. the material taking manipulator comprises a single-claw material taking manipulator 2000, a first linear transmission mechanism C, 2001, a first moving plate C, 2002, a first vertical sliding rail C, 2003, a first material claw driving cylinder C, 2004, a first vertical sliding bar C, 2005, a first sucking disc seat C, 2006 and a first sucking disc C;

21. the single-claw material returning manipulator comprises a 2100, a second linear transmission mechanism C, 2101, a second moving plate C, 2102, a second vertical sliding rail C, 2103 and a second material claw driving cylinder C, 2104, a second vertical sliding bar C, 2105, a second sucker seat C, 2106 and a second sucker C.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-19, the present invention provides a vacuum helium detection apparatus for a lithium battery cover plate, which includes a workbench 1, a feeding conveyor belt 2, a product centering device 3, a helium detection upper mold mechanism, a helium detection lower mold mechanism, a helium spraying mechanism 9, a re-inspection device, a good product conveyor belt 17, and a bad product conveyor belt 18.

With continued reference to fig. 1, 2, a feed conveyor 2 is provided on the table 1; the three product centering devices 3 are arranged on the workbench 1 in parallel, three claw material taking manipulators 4 erected on the workbench 1 are arranged between the three product centering devices 3 and the feeding conveyor belt 2, and the three product centering devices 3 are respectively used for receiving three groups of products grabbed and conveyed by the three claw material taking manipulators 4 on the feeding conveyor belt 2 and respectively centering and positioning the three groups of products;

with continuing reference to fig. 3, 4, 5 and 6, the helium testing upper die mechanism comprises a support table 5 erected on the workbench 1 and nine sets of upper die assemblies 6 arranged side by side on the upper end surface of the support table 5, each upper die assembly 6 comprises a cylinder driving set 600 composed of two sets of cylinders, the driving ends of the cylinder driving sets 600 vertically penetrate through the table surface of the support table 5 downwards and are connected with a mounting plate 601, an air suction box 602 is mounted on the lower end surface of the mounting plate 601, an air suction main channel 603 and three sets of air suction branch channels 604 communicated with the air suction main channel 603 and provided with air suction ports on the lower end surface of the air suction box 602 are arranged in the air suction box 602, wherein each three sets of air suction boxes 602 are communicated with an external vacuum pump through one main pipe, an electromagnetic valve switch is arranged on the main pipe, each three sets of air suction boxes 602 are an air suction unit, an upper die 605 is arranged below the air suction box 602, a positioning hole 606 is arranged on the upper die 605, a positioning pin 607 matched with the positioning hole 606 is arranged on the lower end surface of the air suction box 602, the upper die 605 is provided with three groups of openings which respectively correspond to air suction ports of the three groups of air suction branch channels 604, two opposite angles of the upper end surface of the mounting plate 601 are provided with clamping cylinders 609 with shaft ends deviating and being horizontal axially through a support 608, the driving ends of the two groups of clamping cylinders 609 are provided with spherical hinge seats 610, the lower ends of the two groups of spherical hinge seats 610 are hinged with the upper ends of bent swing arms 611, the middle parts of the two groups of swing arms 611 are bolted with the lower ends of the adjacent support 608, the lower ends of the two groups of swing arms 611 are provided with riding wheels 612, the driving ends of the two groups of clamping cylinders 609 are kept in a stretching state under the working state, the two groups of riding wheels 612 are respectively supported on the lower end surfaces of the riding lugs 613 arranged at the two sides of the upper die 605, according to products of different models, when the upper die 605 needs to be replaced, the clamping cylinders 609 retract, the two groups of swing arms 611 swing, so that the two groups of riding wheels 612 are not supported on the riding lugs 613 at the two sides of the upper die 605, the upper die 605 can be easily taken down under the condition that the upper die 605 is not supported, and the lower die 605 of other types can be replaced with the lower die 605 of other types, so that the universality of the upper die assembly 6 is embodied;

with continuing reference to fig. 3 and 8, the helium checking lower die mechanism comprises a lower die supporting plate 700 which is driven to rotate by a motor and is arranged on a workbench 1, the single rotation angle of the lower die supporting plate 700 is 180 degrees, a supporting column which supports the lower end face of the lower die supporting plate 700 is also arranged on the workbench 1, the top end of the supporting column is only contacted with the lower end face of the lower die supporting plate 700 and is not fixedly connected with the lower end face, eighteen groups of lower dies 701 which are arranged in two rows are arranged on the upper end face of the supporting plate 700, one row of lower dies 701 are positioned under nine groups of upper die assemblies 6 which are arranged side by side on a supporting platform 5 and are in one-to-one correspondence, three groups of helium boxes 702 are respectively arranged on two side edges of the two rows of lower dies 701 adjacent to the supporting plate 700, one group of helium boxes 702 is connected with inner cavities of product accommodating grooves on the three groups of lower dies 701 through corresponding pipelines, two air inlets which are communicated with the inner cavities are arranged on the lower end face of the helium boxes 702, a three-jaw feeding mechanical arm 8 arranged on the workbench 1 is erected between the other row of lower dies 701 and the product centering device 3, the three-jaw feeding manipulator 8 is used for grabbing three groups of products at the product centering device 3 and conveying the products to two rows of lower dies 701 for placing in sequence;

when air extraction work is needed, an external vacuum pump starts air extraction work, three groups of electromagnetic valve switches on the three main pipes are sequentially opened, so that the three main pipes form a passage in sequence, and the air extraction work is performed for three times, three air extraction boxes 602 in each air extraction unit respectively penetrate through an air suction port of the air extraction box and an opening of an upper die 605 through an air suction branch channel 604 in the body to perform corresponding air extraction work on welding points on three adjacent groups of products in the single-row lower die 701 respectively, so that vacuum space or sub-vacuum space is formed at the three welding points on the upper end surface of the product, the three air extraction boxes 602 in each air extraction unit perform air extraction work on three groups of products which are adjacent in sequence in the single-row lower die 701 respectively, and therefore each air extraction unit performs air extraction work on the three groups of products which are adjacent in sequence in the single-row lower die 701 correspondingly.

With continuing reference to fig. 1, 3 and 9, the helium spraying mechanism 9 has three sets and is arranged side by side on the workbench 1, the three sets of helium spraying mechanisms respectively correspond to three sets of helium boxes 702 on one side of the supporting plate 700, which includes a base 900 arranged on the workbench 1, a helium spraying driving cylinder 901 and a door-shaped seat 902 are arranged on the base 900, the driving end of the helium spraying driving cylinder 901 vertically penetrates through the top beam of the door-shaped seat 902 and is provided with a top plate 903, two sets of air ducts 904 vertically penetrating through the body of the top plate 903 are arranged on the top plate 903, pipe joints 905 connected with the pipeline of the external helium making machine are arranged at the lower ends of the two sets of air ducts 904, air nozzles 906 respectively corresponding to and abutted against the two sets of air receiving ports on the lower end surface of the helium boxes 702 are arranged at the upper ends of the air ducts 906 and the top plate 903, a buffer spring 907 is arranged between the air nozzles 906 and the upper end surface of the top plate 903 in a sleeved manner, and guide sliding rods 908 are symmetrically arranged on the lower end surface of the top plate 903 and penetrate through the top beam of the door-shaped seat 902, when the lower die 701 needs to be sprayed with helium, a helium spraying machine outside the equipment starts to work, the helium spraying driving cylinder 901 drives the top plate 903 to move upwards, so that air nozzles 906 at the upper ends of the two groups of air guide pipes 904 are correspondingly abutted with the two groups of air connecting ports at the lower end surface of the helium box 702, helium is filled into the helium box 702, the filled helium enters the inner cavity of the product containing groove of the lower die 701 from the helium box 702, and the lower surface of the product and the inner cavity of the product containing groove of the lower die 701 are filled with high-pressure helium;

with continuing reference to fig. 10 and 11, the rechecking device includes a rechecking table 10, a rechecking support table 11 disposed on the rechecking table 10, and a turntable 12 driven by a motor to rotate and disposed on the rechecking table 10, the single rotation angle of the turntable 12 is 90 °, a set of rechecking upper mold assembly 13 is disposed on the rechecking support table 11, the structure of the rechecking upper mold assembly 13 is the same as that of the upper mold assembly 6, and the working mode of the rechecking upper mold assembly 13 is the same as that of the upper mold assembly 6, four sets of rechecking lower molds 14 in an annular array are disposed on the turntable 12, the structure of the rechecking lower molds 14 is the same as that of the lower molds 701, the four sets of rechecking lower molds 14 are respectively matched with the rechecking upper mold assembly 13 under the rotation drive of the turntable 12, four sets of rechecking gas boxes 15 respectively adjacent to the four sets of rechecking lower molds 14 are disposed on the turntable 12, the rechecking gas boxes 15 are the same as that of the helium boxes 702, and the rechecking gas boxes 15 are communicated with the inner cavity of the product storage tanks disposed on the rechecking lower molds 14, the rechecking platform 10 is also provided with a rechecking helium spraying mechanism 16 adjacent to the rechecking upper die assembly 13, and the rechecking helium spraying mechanism 16 has the same structure and the same working mode as the helium spraying mechanism 9 and is correspondingly matched with a rechecking helium box 15;

continuing to refer to fig. 1, fig. 2, non-defective products conveyer belt 17 and defective products conveyer belt 18's feed end are taken all to be established on workstation 1, the discharge end is taken and is established on reinspection platform 10, non-defective products conveyer belt 17 and defective products conveyer belt 18 are equipped with the nine claws material taking manipulator 19 of erectting at workstation 1 between the one row of lower mould 701 that is adjacent to three-claw material taking manipulator 8, nine claws material taking manipulator 19 snatchs nine groups of products and places non-defective products and defective products in nine groups of products respectively on non-defective products conveyer belt 17 and defective products conveyer belt 18 according to the helium result of product at single row lower mould 701 department, its concrete mode of snatching is:

nine-claw material taking manipulator 19 takes nine groups of products into three grabbed units, every three groups of products adjacent in sequence in single-row lower die 901 are one grabbed unit, each air suction unit corresponds to three groups of products adjacent in sequence in single-row lower die 701, therefore three groups of products in one grabbed unit correspond to three products extracted by one air suction unit, so that the products in the three grabbed units correspond to the products extracted by the three air suction units, nine-claw material taking manipulator 19 takes the products of the three grabbed units at two rows of lower die 701 at a time and places one or more grabbed units with defective products in the three grabbed units on defective product conveyor belt 18 according to the helium detection result of the products, and the grabbed units without defective products are placed on good product conveyor belt 17. Two groups of single-claw material taking manipulators 20 erected on the reinspection platform 10 are arranged between the discharge end of the defective product conveyor belt 18 and the four groups of reinspection lower dies 14 on the turntable 12, wherein one group of single-claw material taking manipulators 20 are used for taking defective products on the defective product conveyor belt 18 in multiple times and placing the defective products on the reinspection lower dies 14;

and four groups of lower reinspection dies 14 are respectively used for receiving defective products placed by the single-claw material taking manipulator 20 under the rotary drive of the rotary table 12, another group of single-claw material taking manipulator 20 is used for taking the products which are subjected to reinspection on the lower reinspection dies 14 and placing the products on the defective product conveyor belt 18, the four groups of lower reinspection dies 14 are used for taking the products which are subjected to reinspection in the product placing grooves sequentially by the group of single-claw material taking manipulators 20 under the rotary drive of the rotary table 12, a single-claw material returning manipulator 21 erected on the reinspection table 10 is arranged between the good product conveyor belt 17 and the discharge end of the defective product conveyor belt 18, and the single-claw material returning manipulator 21 is used for taking the products which are subjected to reinspection on the defective product conveyor belt 18 and judged to be good products according to the reinspection results and placing the products on the good product conveyor belt 17.

With continued reference to fig. 12 and 13, in this embodiment, the product centering device 3 includes two sets of side plates 300 disposed on the workbench 1 and a clamping cylinder 301 disposed between the two sets of side plates 300, a horizontal plate 302 is disposed between the tops of the two sets of side plates 300, a circular opening 303 is disposed at the center of the horizontal plate 302, a conical block 304 disposed at the circular opening 303 is disposed at the piston end of the clamping cylinder 301, X-directional guide rails 305 and Y-directional guide rails 306 are symmetrically disposed at the left and right sides of the upper end surface of the horizontal plate 302, X-directional sliding bars 307 are slidably disposed on the two sets of X-directional guide rails 305, Y-directional sliding bars 308 are slidably disposed between the same side ends of the two sets of Y-directional guide rails 306, rollers 309 capable of contacting with the inclined surfaces of the conical block 304 are disposed at one end of the two sets of X-directional sliding bars 307 adjacent to the circular opening 303 and at the middle portion of one side of the two sets of Y-directional sliding bars 308 adjacent to the circular opening 303, two sets of X-directional return springs 310 are symmetrically connected between the two sides of the two sets of X-directional sliding bars 307 and the upper end surface of the horizontal plate 302, y-direction reset tension springs 311 are connected between the same side ends of the two groups of Y-direction sliders 308, a material carrying plate 313 for placing products is erected on the upper end surface of the transverse plate 302 through the upright posts 312, vertical clamping arms 314 are symmetrically arranged at one ends of the two groups of X-direction sliders 307 departing from the circular opening 303, centering clamping blocks 315 extending to the left side and the right side of the upper end surface of the material carrying plate 313 are symmetrically arranged at the top ends of the two groups of vertical clamping arms 314, vertical clamping plates 316 are symmetrically arranged at one sides of the two groups of Y-direction sliders 308 departing from the circular opening 303, and centering clamping strips 317 extending to the front side and the rear side of the upper end surface of the material carrying plate 313 are symmetrically arranged at the top ends of the two groups of vertical clamping plates 316; before products need to be centered, the piston end of the unclamping cylinder 301 is kept in an extending state, the conical block 304 is enabled to be abutted against the rollers 309 on the X-direction slide bar 307 and the rollers 309 on the Y-direction slide bar 308, so that the two groups of X-direction slide bars 307 drive the two groups of centering clamping blocks 315, the two groups of Y-direction slide bars 308 drive the two groups of centering clamping bars 317 to be in a separated state, the three-claw material taking manipulator 4 places the three groups of products on the material carrying plates 313 of the three-group product centering device 3 respectively, then the piston end of the unclamping cylinder 301 retracts, the two groups of X-direction slide bars 307 move inwards under the action of the X-direction return tension spring 310, and the two groups of Y-direction slide bars 308 move inwards under the action of the Y-direction return tension spring 311, so that the two groups of centering clamping blocks 315 and the two groups of centering clamping bars 317 clamp the products on the material carrying plates 313, the products are promoted to realize the centering manipulator, and the three-claw material taking machine 8 can take the products accurately when the products are taken by the product centering device 3, and the product is accurately placed into the lower die 701, so that the situation that the product has position deviation in the lower die 701 can be prevented, and when the three-jaw feeding manipulator 8 needs to take the product from the product centering device 3, the piston end of the unclamping cylinder 301 keeps in an extending state, so that the two groups of centering clamping blocks 315 and the two groups of centering clamping strips 317 do not clamp the product in a centering manner.

With reference to fig. 6 and 7, in this embodiment, three sets of air-sucking sub-channels 604 respectively perform corresponding air-sucking operations on the positive post welding point, the explosion-proof sheet welding point, and the negative post welding point of the lithium battery cover plate on the lower mold 701, two sets of air-sucking sub-channels 604 corresponding to the positive post welding point and the negative post welding point in the three sets of air-sucking sub-channels 604 are provided with fixing bases 614, the fixing bases 614 are provided with a plurality of sets of air-flow through holes 615 side by side, a push rod 616 vertically penetrating through the body of the air-flow through holes 615 is disposed in the middle of the air-flow through holes 615, the upper end of the push rod 616 is connected with a limit nut 617 through a thread, the lower end of the push rod 616 extends out of the air-sucking sub-channel 604 and passes through an opening on the upper mold 605, and the lower end of the push rod 618 is disposed between the push rod 618 and the fixing bases 614, and when the upper mold 605 and the lower mold 701 are separated from the lower mold 701 under the action of the push rod 616, the product adsorbs on last mould 605, goes up the opening of mould 605 and all is equipped with the sealing washer 620 that can form sealedly with the suction inlet periphery department of inhaling subchannel 604 and the welding point periphery department of lithium cell cover plate on the lower mould 701 respectively on the downside, through sealing washer 620, improves the leakproofness of contact point.

In this embodiment, the upper end surface of the mounting plate 601 is symmetrically provided with guide rods 621 vertically penetrating the top surface of the support table 5.

With continued reference to fig. 14 and 15, in the present embodiment, the three-jaw material taking manipulator 4 and the three-jaw material loading manipulator 8 have the same structure, where:

the three-jaw material taking manipulator 4 specifically comprises a first linear transmission mechanism A400 erected on the workbench 1 and a first moving plate A401 connected to the driving end of the first linear transmission mechanism A400, three groups of first vertical sliding rails A402 are arranged on the first moving plate A401, first vertical sliding strips A403 are arranged on the three groups of first vertical sliding rails A402 in a sliding mode, three groups of axially vertical first jaw driving cylinders A404 are further arranged on the first moving plate A401, the three groups of first jaw driving cylinders A404 are respectively connected with the three groups of first vertical sliding strips A403 in a driving mode, the lower ends of the three groups of first vertical sliding strips A403 are respectively provided with a first suction disc seat A405, and the lower ends of the three groups of first suction disc seats A405 are respectively provided with a plurality of groups of first suction disc A406;

three-jaw material loading manipulator 8 is concrete including erectting second linear drive mechanism A800 on workstation 1 and connecting the second movable plate A801 at second linear drive mechanism A800 drive end, be equipped with three groups of vertical slide rail A802 of second on the second movable plate A801, all slide on three groups of vertical slide rail A802 and be equipped with the vertical draw runner A803 of second, still be equipped with three groups of axial vertical second claw on the second movable plate A801 and drive actuating cylinder A804, three groups of second claw drive actuating cylinder A804 drive respectively connect three groups of vertical draw runners A803 of second, the lower extreme of three groups of vertical draw runners A803 all is equipped with second sucking disc seat A805, three groups of second sucking disc seat A805 lower extremes all are equipped with multiunit second sucking disc A806.

With continuing reference to fig. 16 and 17, in this embodiment, the nine-claw material taking manipulator 19 includes two sets of guide rail supports 1901 mounted on the workbench 1, two sets of guide rail supports 1901 are provided with horizontal slide rails 1902 with parallel guides, a moving plate B1903 is slidably disposed between the two sets of horizontal slide rails 1902, one set of guide rail support 1901 is provided with a linear transmission mechanism B1904 with a driving direction parallel to the guides of the slide rails 1902, a driving end of the linear transmission mechanism B1904 is connected with the moving plate B1903, three sets of cylinder supports 1905 are equidistantly disposed on a lower end face of the moving plate B1903, the three sets of cylinder supports 1905 are provided with vertical slide rails B1906 and axial vertical claw driving cylinders B1907, three sets of vertical slide rails B1908 are provided on the vertical slide rails B1906, driving ends of the three sets of claw driving cylinders B1907 are respectively connected with three sets of vertical slide rails B1908, lower ends of the three sets of vertical slide rails B1908 are provided with mounting plates B1909, the lower end face of each group of mounting plates B1909 is provided with three groups of sucker seats B1910, and the lower end of each group of sucker seats B1910 is provided with a plurality of groups of suckers B1911.

With continued reference to fig. 18, in this embodiment, the single-claw material taking manipulator 20 specifically includes a first linear transmission mechanism C2000 erected on the review board 10 and a first moving board C2001 connected to a driving end of the first linear transmission mechanism C2000, the first moving board C2001 is provided with a first vertical slide rail C2002 and a first claw driving cylinder C2003 which is vertical in the axial direction, the first vertical slide rail C2002 is provided with a first vertical slide bar C2004 in a sliding manner, the first claw driving cylinder C2003 is connected to the first vertical slide bar C2004 in a driving manner, a first chuck base C2005 is provided at a lower end of the first vertical slide bar C2004, and a plurality of groups of first chucks C2006 are provided at a lower end of the first chuck base C2005;

continuing to refer to fig. 19, in this embodiment, the single-claw material returning manipulator 21 specifically includes a second linear transmission mechanism C2100 erected on the review table 10 and a second moving plate C2101 connected to a driving end of the second linear transmission mechanism C2100, the second moving plate C2101 is provided with a second vertical slide rail C2102 and a second material claw driving cylinder C2103 which is vertical in the axial direction, the second vertical slide rail C2102 is provided with a second vertical slide bar C2104 in a sliding manner, the second material claw driving cylinder C2103 is connected to the second vertical slide bar C2104 in a driving manner, a second suction cup seat C2105 is provided at a lower end of the second vertical slide bar C2104, and a plurality of groups of second suction cups C2106 are provided at a lower end of the second suction cup C2105.

The first linear transmission mechanism a 400, the second linear transmission mechanism a 800, the linear transmission mechanism B1904, and the first linear transmission mechanism C2000 may adopt a mode of transmission connection of a motor and a synchronous conveyor belt, and may also adopt a mode of transmission connection of a motor and a lead screw, and since both transmission structures are conventional structural designs, description with reference to the accompanying drawings is not required;

when the mode that the motor is in transmission connection with the synchronous conveyor belt is adopted, the motor drives and is connected with a driving wheel arranged in the shell, the driving wheel is in transmission connection with a driven wheel in the shell through a synchronous belt, a guide groove with a guide direction parallel to the transmission direction of the synchronous belt is formed in the shell, a connecting block which is in sliding connection with the guide groove and forms the driving end of each linear transmission mechanism is arranged on the synchronous belt, and the connecting block is connected with a moving plate in each manipulator;

when the mode that the motor is in transmission connection with the lead screw is adopted, the motor is in driving connection with the lead screw arranged in the shell, the shell is provided with a guide groove which is provided with a guide direction parallel to the axial direction of the lead screw, the lead screw is in threaded connection with a lead screw nut, the lead screw nut is in sliding connection with the guide groove and forms the driving end of each linear transmission mechanism, and the lead screw nut is connected with a moving plate in each manipulator;

the second linear transmission mechanism C2100 adopts a rodless cylinder transmission mode, which is the prior art, and the specific structure is not shown in the specific drawings, a slide bar parallel to the driving direction of the body of the rodless cylinder is erected on the body of the rodless cylinder, and a slide block driven by the rodless cylinder is connected with the slide bar in a sliding manner to form the driving end of the second linear transmission mechanism C2100 and is connected with the second moving plate C2101.

The three-claw material taking manipulator 4, the three-claw material loading manipulator 8, the nine-claw material taking manipulator 19, the single-claw material taking manipulator 20 and the single-claw material returning manipulator 21 have the same material taking and discharging principle and the same process, when the material is taken, the material claw in each manipulator drives the cylinder to drive the vertical slide bar to descend, so that the sucking disc on the lower end surface of the sucking disc seat is contacted with the surface of a product, then under the action of the vacuum generator connected with the air pipe of the sucking disc seat, the product is adsorbed, then the material claw drives the cylinder to drive the vertical slide bar to ascend, the height of the product is lifted, then the linear transmission mechanisms of the manipulators drive the moving plate to move the product to be right above the target position, then the material claw drives the cylinder to drive the vertical slide bar to descend, so that the product is located at a target position, then the sucking disc is contacted with the product for adsorption, the material claw drives the cylinder to drive the vertical slide bar to ascend, and the vertical slide bar returns to the original point under the drive of the linear transmission mechanism to continuously take the material.

The working principle of the invention is as follows:

the three-claw material taking manipulator 4 firstly grabs three groups of products by the feeding conveyor belt 2 and then places the three groups of products at the three-group product centering device 3, the products are centered, then three groups of products are taken away from the three groups of product centering devices 3 by the three-claw feeding mechanical arm 8 and are sequentially placed at the two rows of lower dies 701, then, the three-jaw material taking manipulator 4, the product centering device 3 and the three-jaw material loading manipulator 8 still keep the previous actions, after one row of the two rows of lower dies 701 is filled with products, the lower die supporting plate 700 rotates 180 degrees under the driving of the motor, the positions of the two rows of lower dies 701 are selectively exchanged, the three-jaw feeding mechanical hand 8 feeds the other row of lower dies 701 which are not filled with products, the row of lower dies 701 which finish feeding are matched with nine groups of upper die assemblies 6 on the support table 5, and the driving end of a cylinder driving group 600 in each upper die assembly 6 moves downwards to enable an upper die 605 to press a product placed in a product mounting groove of each lower die 701;

then, a vacuum pump outside the equipment starts to pump air, then electromagnetic valve switches on the main pipes connected with the first group of air suction units are opened to enable the main pipes to form a passage, then a helium generator outside the equipment starts to work, high-pressure helium gas is filled into a product installation groove of the lower die 701 by using a helium spraying mechanism 9, then electromagnetic valve switches on the main pipes connected with other air suction units are opened in sequence until helium detection of products on the row of nine groups of lower dies 701 is completed, wherein the electromagnetic valve switch on one main pipe is in an open state, and the electromagnetic valve switches on the other two main pipes are in a closed state;

if the helium detector communicated with the air outlet end of the vacuum pump outside the equipment detects that helium exists once or for many times, products with helium leakage in the products extracted correspondingly by one or more air suction units can be found out according to the opening sequence of the electromagnetic valve switches on the three main pipes, the three groups of products are judged as defective products as long as one group of products extracted correspondingly by the air suction units leaks, and after the helium detection of the products on the row of lower dies 701 is completed, the helium spraying driving cylinders 901 in each group of helium spraying mechanisms 9 drive the top plate 903 to move downwards and disconnect the gas supply to the helium box 702;

then, the nine-claw material taking manipulator 19 takes the products of the three grabbed units away from the row of lower dies 701 on which the helium detection of the products is completed, takes nine groups of products at the row of lower dies 701 away, and according to the fact that the products in the three grabbed units correspond to the products extracted by the three air suction units correspondingly, the products in the corresponding grabbed units are judged to be defective products, and the products in the corresponding grabbed units are all regarded as defective products, so that the nine-claw material taking manipulator 19 can directly place the grabbed units with and without defective products in the three grabbed units on the defective product conveyor belt 18 and the non-defective product conveyor belt 17 according to the detection structure;

then the lower die supporting plate 700 rotates 180 degrees again under the drive of the motor, the other row of lower dies 701 which are filled with products by the three-jaw feeding manipulator 8 are matched with the nine groups of upper die assemblies 6 on the supporting table 5, the same detection process is completed, and the row of lower dies 701 which are taken away with the products receive the three-jaw feeding manipulator 8 for discharging;

then, two groups of single-claw material taking manipulators 20 are utilized, wherein one group of single-claw material taking manipulators 20 takes defective products on a defective product conveyor belt 18 in a grading manner and places the defective products on the rechecking lower dies 14, the four groups of rechecking lower dies 14 are driven by the rotation of a turntable 12 to respectively receive the defective products placed on the single-claw material taking manipulators 20 and respectively and correspondingly match with the rechecking upper die assemblies 13, the rechecking upper die assemblies 13 and the upper die assemblies 6 have the same structure, and the rechecking lower dies 14 and the lower dies 701 have the same structure, so that the matching working process of the rechecking upper die assemblies 13 and the rechecking lower dies 14 is consistent with the matching process of the upper die assemblies 6 and the lower dies 701, the matching is not explained any more, in the matching process, the rechecking helium spraying mechanism 16 is sequentially matched with the four groups of rechecking gas boxes 15 in a corresponding manner, helium gas for rechecking is sequentially provided for the four groups of rechecking lower dies 14, the rechecking helium spraying mechanism 16 is the same as the helium spraying mechanism 9 in structure and consistent in the working mode, the rechecking helium box 15 and the helium box 702 are structurally the same, so the process of providing helium for the rechecking lower die 14 by matching the rechecking helium spraying mechanism 16 with the rechecking helium box 15 is not explained, when the rechecking defective products on the rechecking lower die 14 are matched with the rechecking upper die assembly 13, the rechecking helium box 15 and the rechecking helium spraying mechanism 16 to complete the rechecking, the turntable 12 rotates 90 degrees, then another group of single-claw material taking manipulators 20 take the products which are rechecked on the rechecking lower die 14 away and place the products on the defective product conveyor belt 18, the process is continuously repeated, the single-claw material returning manipulator 21 takes the products which are rechecked and judged to be good products away and place on the good product conveyor belt 17 according to the rechecking result, and the products which are still positioned continue to the defective product conveyor belt 18.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.