阅读说明：本技术 一种电池盒工件铣削遮挡排屑设备 (Battery case work piece mills and shelters from chip removal equipment ) 是由 冯凯烨 邓永兵 刘君 马兴彧 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种电池盒工件铣削遮挡排屑设备,包括机体、多层挡板、出气组件、多个浮动定位支撑装置、多个焊缝铣削下压固定装置、多个衬套铣削下压固定装置和排屑装置；本发明通过抓手将工件从上一个工位抓至本工位设备上,然后抓手再将挡板放到工件上,然后再夹紧,将工件固定在夹具上；机床移动到工件上方铣削工件,在铣削过程中铝屑飞溅,挡板和吹气系统能很好的阻挡铝屑掉入到工件的孔中,能有效的减少后面工位的清理难度。(The invention discloses a milling, shielding and chip removal device for a battery box workpiece, which comprises a machine body, a plurality of layers of baffles, an air outlet assembly, a plurality of floating positioning and supporting devices, a plurality of welding seam milling and downward pressing fixing devices, a plurality of lining milling and downward pressing fixing devices and a chip removal device, wherein the plurality of welding seam milling and downward pressing fixing devices are arranged on the machine body; the workpiece is gripped to the station equipment from the previous station through the gripper, then the gripper puts the baffle on the workpiece, and then the gripper clamps the workpiece, and fixes the workpiece on the clamp; the machine tool moves to the position above the workpiece to mill the workpiece, aluminum scraps splash in the milling process, the baffle and the blowing system can well prevent the aluminum scraps from falling into holes of the workpiece, and the cleaning difficulty of a station behind can be effectively reduced.)

1. The utility model provides a battery case work piece mills and shelters from chip removal equipment which characterized in that includes:

a body;

the multi-layer baffle is respectively arranged on each stepped surface of the workpiece, and the baffle is provided with a corresponding avoidance processing groove at the workpiece milling position;

the air outlet assembly comprises a plurality of air blowing nozzles (28) arranged at the milling position of the workpiece, and the air blowing nozzles (28) are connected with an air source through pipelines and are used for blowing away aluminum scraps splashed at the milling position away from the workpiece;

a plurality of floating positioning supporting devices (31) which are respectively arranged on the machine body and are used for supporting the workpiece and the baffle;

the welding seam milling downward pressing fixing devices are respectively arranged on the machine body and are used for downward pressing and fixing the workpiece and the baffle plate when the welding seam is milled;

the bushing milling downward pressing fixing devices are respectively arranged on the machine body and are used for downward pressing and fixing the workpiece and the baffle plate when the bushing is milled;

the chip removal device is installed on the machine body and is positioned below the workpiece, and the chip removal device comprises a conveying belt (43) and inclined chip removal guide plates (41) positioned at the upper ends of the two sides of the conveying belt (43).

2. A battery box workpiece milling shielding chip removal device according to claim 1, wherein the multiple layers of baffle plates are three layers, namely a first layer of baffle plate (21), a second layer of baffle plate (22) and a third layer of baffle plate (23), the first layer of baffle plate (21), the second layer of baffle plate (22) and the third layer of baffle plate (23) respectively cover three surfaces of the workpiece from bottom to top, and the first layer of baffle plate (21), the second layer of baffle plate (22) and the third layer of baffle plate (23) are fixed into a whole through screws (24).

3. The battery box workpiece milling shielding chip removal device according to claim 2, wherein a plurality of aluminum profile sliding rails (25) are arranged on the upper end face of the third layer baffle (23) in a criss-cross manner, a mounting frame (29) is arranged on the third layer baffle (23), sliding block assemblies slidably connected with the aluminum profile sliding rails (25) are arranged at four feet of the mounting frame (29), the mounting frame (29) is composed of four connecting pieces, and the two symmetrically arranged connecting pieces are inverted U-shaped to form the four feet of the mounting frame.

4. The battery box workpiece milling shielding chip removal device according to claim 2, wherein an avoiding hole for avoiding the stud is formed in the stud position of the workpiece by the first layer baffle (21), the second layer baffle (22) and the third layer baffle (23), and a circular baffle (27) for avoiding the hole is arranged at the avoiding hole to prevent aluminum chips from falling into the workpiece cavity from the hole.

5. The battery box workpiece milling shielding chip removal device according to claim 1, wherein the floating positioning and supporting device (31) comprises a mounting bracket (311) fixed on the machine body, the mounting bracket (311) is provided with a transverse cylinder (312), the output end of the transverse cylinder (312) is connected with a connecting piece (313), a guide groove is formed from top to bottom, a positioning and supporting block (314) matched with the guide groove in a sliding contact manner is arranged in the guide groove, the upper end of the positioning and supporting block (314) extends out of the connecting piece (313), and a spring (315) is arranged between the bottom surface of the guide groove and the lower end of the positioning and supporting block (314); a guide groove is formed in the lower end face of the positioning support block (314), a screw rod (316) is arranged at the lower end of the connecting piece (313), the screw rod (316) penetrates through the connecting piece (313) and extends into the guide groove, and the spring (315) is sleeved on the screw rod (316); the positioning support block is characterized in that a shaft sleeve (317) is transversely arranged in the connecting piece (313), a limiting block (318) is arranged in the shaft sleeve (317), the end face of the limiting block (318) extending into the guide groove is an inclined face, a tangent plane (319) in contact fit with the inclined face is cut on the side face, close to the limiting block (318), of the positioning support block (314), and the tangent plane is in a hook shape, so that the positioning support block (314) is limited when moving up and down.

6. The battery box workpiece milling shielding chip removal device according to claim 1, wherein the welding seam milling downward pressing fixing device and the bushing milling downward pressing fixing device both comprise a supporting part and a pressing part, the supporting part comprises a support (321) fixed on the machine body, an inverted L-shaped connecting block (322) is arranged on the side surface of the support (321), an I-shaped limiting block (337) is arranged at the lower end of the upper part of the inverted L-shaped connecting block (322), a double-guide-post cylinder (338) is arranged on the other side surface of the support (321), a connecting plate (335) is arranged at the upward output end of the double-guide-post cylinder (338), a convex limiting block (336) matched with the connecting plate (335) is arranged below the I-shaped limiting block (337), a supporting block (334) for supporting a workpiece is arranged on the connecting plate (335), and a blowing head 35 is arranged on the connecting plate (335); the pressing components comprise supporting seats (341) fixed on the machine body, cylinder driving mounting seats (342) are arranged on the supporting seats (341), pressing supports (343) are arranged on the cylinder driving mounting seats (342), the pressing supports (343) are hinged with two side faces of the cylinder driving mounting seats (342), the pressing supports (343) can be driven to turn over, and workpiece pressing shielding assemblies are arranged below the pressing supports (343) close to the tail ends of workpieces; the work piece compresses tightly shelters from the subassembly and includes and compress tightly support (343) fixed connection's connection fixed block (340), it passes through adjusting pad 344 fixed connection pressure head (349) to connect fixed block (340) lower extreme, the work piece compresses tightly shelters from the subassembly still including with compress tightly terminal fixed connection's of support (343) work piece shielding plate (348), it is equipped with spacing piece (347) to compress tightly support (343) lower extreme, supporting seat (341) side sets up installation piece (346), and installation piece (346) upper end is equipped with spacing piece (347) complex down spacing piece (345) down.

7. The battery box workpiece milling shielding chip removal equipment according to claim 6, wherein the floating positioning support device, the welding seam milling downward pressing fixing device and the bushing milling downward pressing fixing device are respectively provided with a blowing head 35, the blowing heads 35 are connected with an air source through pipelines, air is blown against the support, aluminum chips falling off when the workpiece is taken are blown away, and the phenomenon that the later-stage assembly process is influenced by the residual aluminum chips is avoided.

8. A battery pack workpiece milling shielding chip removal device according to claim 1, characterized in that the inclined chip removal guide plate (41) is fixed on the machine body through a fixing bracket (42); the inclined angle of the inclined chip removal guide plate (41) is 30-90 degrees.

9. A battery box workpiece milling shielding chip removal device according to claim 1, characterized in that the number of the conveyor belts (43) is two, and the two conveyor belts (43) are arranged in parallel; the inclined chip removal guide plates (41) are arranged on the two sides of each conveying belt (43), and the adjacent inclined chip removal guide plates (41) are integrally arranged; the upper end of the inclined chip removal guide plate (41) is provided with a plurality of chip removal blowing devices, each chip removal blowing device comprises a chip removal spray head (45), and the chip removal spray heads (45) are connected with an air source through blowing pipelines (44) and are controlled through a valve terminal.

Technical Field

The invention relates to the technical field of workpiece milling, in particular to a battery box workpiece milling shielding chip removal device.

Background

When a welding seam and a lining of a workpiece (shown in figure 1) of a battery box shell are milled, splashed aluminum scraps are easy to fall into holes and grooves of the workpiece and a cavity of a battery box; however, there are aluminum scraps in the car battery case, there is a serious safety risk to the battery, because the aluminum scraps can lead to the battery short circuit, make the battery damage, even the battery explodes, so the aluminium scraps that consequently need to design a battery case casing work piece and prevent splashing at milling process fall into the hole of work piece, recess and the piece removal equipment that shelters from in the cavity.

Disclosure of Invention

The invention aims to provide a device for milling, shielding and discharging chips of a battery box workpiece, which aims to overcome the defects of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a battery case workpiece milling shielding chip removal device comprising:

a body;

the multi-layer baffle is respectively arranged on each stepped surface of the workpiece, and the baffle is provided with a corresponding avoidance processing groove at the workpiece milling position;

the air outlet assembly comprises a plurality of air blowing nozzles arranged at the milling position of the workpiece, and the air blowing nozzles are connected with an air source through pipelines and are used for blowing away aluminum scraps splashed at the milling position away from the workpiece;

the floating positioning support devices are respectively arranged on the machine body and are used for supporting the workpiece and the baffle;

the welding seam milling downward pressing fixing devices are respectively arranged on the machine body and are used for downward pressing and fixing the workpiece and the baffle plate when the welding seam is milled;

the bushing milling downward pressing fixing devices are respectively arranged on the machine body and are used for downward pressing and fixing the workpiece and the baffle plate when the bushing is milled;

the chip removal device is installed on the machine body and located below the workpiece, and the chip removal device comprises a conveying belt and inclined chip removal guide plates located at the upper ends of two sides of the conveying belt.

Further, the multilayer baffle is the three-layer, and it is first layer baffle, second floor baffle and third layer baffle respectively, first layer baffle, second floor baffle and third layer baffle cover the three face of work piece respectively from bottom to top, first layer baffle, second floor baffle and third layer baffle pass through the fix with screw as an organic whole.

Further, third layer baffle up end vertically and horizontally staggered is equipped with a plurality of aluminium alloy slide rails, is equipped with the mounting bracket on the third layer baffle, but the four feet department of mounting bracket is equipped with the slider assembly with aluminium alloy slide rail sliding connection, preferably, the mounting bracket comprises four connecting pieces, and wherein the connecting piece that two symmetries set up is the shape of falling the U to form the four feet of mounting bracket.

Further, the sliding block assembly comprises a sliding connection block, and the sliding connection block is slidably connected with the aluminum profile sliding rail through a plurality of bolts.

Furthermore, the blowing nozzle is composed of an elbow and a quick plug, and the blowing direction can be flexibly changed.

Furthermore, the first layer baffle, the second layer baffle and the third layer baffle are provided with avoiding holes for avoiding the studs at the stud positions of the workpiece, and the round baffles for avoiding the holes are arranged at the avoiding holes, so that aluminum scraps are prevented from falling into the workpiece cavity from the positions of the holes.

Furthermore, the floating positioning support device comprises a mounting bracket fixed on the machine body, the mounting bracket is provided with a transverse cylinder, the output end of the transverse cylinder is connected with a connecting piece, the transverse cylinder is provided with a guide groove from top to bottom, a positioning support block in sliding contact fit with the guide groove is arranged in the guide groove, the upper end of the positioning support block extends out of the connecting piece, and a spring is arranged between the bottom surface of the guide groove and the lower end of the positioning support block; and the mounting bracket is provided with a blowing head.

Furthermore, a guide groove is formed in the lower end face of the positioning support block, a screw rod is arranged at the lower end of the connecting piece, the screw rod penetrates through the connecting piece and extends into the guide groove, and the spring is sleeved on the screw rod.

Furthermore, a shaft sleeve is transversely arranged in the connecting piece, a limiting block is arranged in the shaft sleeve, the end face of the limiting block, which extends into the guide groove, is an inclined face, a tangent plane which is in contact fit with the inclined face of the positioning supporting block is cut on the side face, which is close to the limiting block, of the positioning supporting block, and the tangent plane is in a hook shape so as to realize the limiting of the positioning supporting block during the up-and-down movement.

The floating support is because the compression spring is always in a compressed state, and the spring always gives an upward force to the support, so that the support is in an extended state under the natural condition. The workpiece is placed on the positioning support block, and the support can move downwards to enable the compression amount of the compression spring to be larger due to the self weight of the workpiece and the downward force of the pressure head, so that the support is balanced in force and is stabilized at one position; finally, the transverse cylinder extends out to drive the ejector to fix the support at the position; the floating support achieves the purpose of supporting the workpiece.

Further, the welding seam milling downward pressing fixing device and the bushing milling downward pressing fixing device both comprise a supporting part and a pressing part, the supporting part comprises a support fixed on the machine body, an inverted L-shaped connecting block is arranged on the side face of the support, an I-shaped limiting block is arranged at the lower end of the upper portion of the inverted L-shaped connecting block, a double-guide-column air cylinder is arranged on the other side face of the support, a connecting plate is arranged at the upward output end of the double-guide-column air cylinder, a convex limiting block matched with the connecting plate is arranged below the I-shaped limiting block, a supporting block for supporting a workpiece is arranged on the connecting plate, and preferably, the blowing head is fixedly connected with the connecting plate through a support.

Furthermore, the pressing parts comprise supporting seats fixed on the machine body, cylinder driving mounting seats are arranged on the supporting seats, pressing supports are arranged on the cylinder driving mounting seats, the pressing supports are hinged with two side faces of the cylinder driving mounting seats, and workpiece pressing shielding assemblies are arranged below the pressing supports, close to the tail ends of workpieces; the work piece compresses tightly shelters from the subassembly and includes and compress tightly support fixed connection's the fixed block of being connected, it fills up fixedly connected with pressure head through the adjustment to connect the fixed block lower extreme, the work piece compresses tightly shelters from the subassembly and still includes and compresses tightly the terminal fixed connection's of support work piece shielding plate, it is equipped with the spacing piece to compress tightly the support lower extreme, the supporting seat side sets up the installation piece, and the installation piece upper end is equipped with spacing piece complex down spacing piece.

Furthermore, the floating positioning support device, the welding line milling downward pressing fixing device and the bush milling downward pressing fixing device are provided with air blowing heads, the air blowing heads are connected with an air source through pipelines, air is blown against the supports, aluminum scraps falling when the workpieces are taken are blown away, and the problem that the later-stage assembly process is influenced by the residual aluminum scraps is avoided.

Furthermore, the inclined chip removal guide plate is fixed on the machine body through a fixing support.

Further, the inclination angle of the inclined chip removal guide plate is 30-90 degrees.

Furthermore, the number of the conveying belts is two, and the two conveying belts are arranged in parallel; every the conveyer belt both sides all are equipped with slope chip removal guide plate, and adjacent an organic whole sets up between the slope chip removal guide plate.

Further, slope chip removal guide plate upper end is equipped with a plurality of chip removal gas blowing device, and chip removal gas blowing device includes the chip removal shower nozzle, the chip removal shower nozzle passes through the pipeline of blowing and connects the air supply, and controls through the valve island. And the aluminum scraps are blown into the belt conveyor, so that the accumulation of the aluminum scraps on the baffle is reduced. The chip removal blowing device is controlled by the valve terminal to remove aluminum chips to the outside of the clamp as much as possible, so that manual intervention on an automatic production line is reduced.

Compared with the prior art, the invention has the beneficial effects that:

the workpiece is gripped to the station equipment from the previous station through the gripper, then the gripper puts the baffle on the workpiece, and then the gripper clamps the workpiece, and fixes the workpiece on the clamp; the machine tool moves to the position above the workpiece to mill the workpiece, aluminum scraps splash in the milling process, the baffle and the blowing system can well prevent the aluminum scraps from falling into holes of the workpiece, and the cleaning difficulty of a station behind can be effectively reduced.

Drawings

FIG. 1 is a schematic view of a workpiece structure;

FIG. 2 is a schematic structural diagram of a battery box workpiece milling shielding chip removal device provided by the invention;

FIG. 3 is a schematic structural view of a positioning support hold-down fixture;

FIG. 4 is a perspective view of the floating positioning support device;

FIG. 5 is a cross-sectional view of the floating positioning support device;

FIG. 6 is a schematic view of the operation of the support and hold down members with the workpiece;

FIG. 7 is a schematic structural view of a support member;

FIG. 8 is a schematic view of the construction of the hold-down member;

FIG. 9 is a schematic view of the cooperation of the first, second and third layers of baffles;

FIG. 10 is a schematic structural view of a multilayer baffle;

FIG. 11 is a schematic view of the mating of the multi-layer baffle and vent assembly to the workpiece;

fig. 12 is a schematic structural view of the chip removal device.

Reference numerals: 31-floating positioning support means; 32-weld milling the support member of the hold-down fixture; 33-bushing milling down the support member of the fixture; 34-a pressing part; 35-a blowing head; 311-a mounting bracket; 312-transverse cylinder; 313-a connector; 314-positioning a support block; 315-a spring; 316-screw rod; 317-shaft sleeve; 318-a limiting block; 319-hook shaped section; 321-a support; 322-inverted L-shaped connecting block; 337-an I-shaped limiting block; 338-double guide post cylinder; 335-connecting plate; 336-raised limit block 334-support block; 340-connecting a fixed block; 341-a support seat; 342-a cylinder drive mount; 343-pressing the bracket; 344-an adjustment pad; 348 — a workpiece shutter; 349-indenter; 347-upper limit block; 346-mounting block; 345-a lower limit block; 21-a first layer of baffles; 22-a second layer of baffles; 23-a third layer of baffles; 24-a screw; 25-aluminum profile slide rail; 29-a mounting frame; 26-a sliding connection block; 28-air blowing nozzles; 27-circular baffles; 30-a groove; 41-inclined chip removal guide plate; 42-a fixed support; 43-a conveyor belt; 44-a blow pipe; 45-chip removal spray head.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in figure 2, the battery box workpiece milling shielding chip removal device comprises a machine body, a shielding chip removal air blowing component, a shielding and air blowing component and a positioning support pressing clamp.

The working principle of the invention is as follows: the gripper grabs the workpiece to the CNC clamp of the station from the previous station, then places the shielding and air blowing part on the workpiece, and then positions, supports and compresses the clamp and clamps the workpiece. The machine tool moves over the workpiece to mill the workpiece. The aluminum scraps splash in the milling process, the shielding and blowing component can well prevent the aluminum scraps from falling into holes of the workpiece, and the cleaning difficulty of the rear station can be effectively reduced.

As shown in fig. 9 to 11, the shielding and blowing member includes a plurality of layers of baffles, each layer of baffle is respectively disposed on each stepped surface of the workpiece, and the baffles are provided with corresponding avoidance processing grooves at the milling position of the workpiece.

As shown in fig. 10, in this embodiment, the multilayer baffle is three layers, which are a first layer baffle 21, a second layer baffle 22 and a third layer baffle 23, the first layer baffle 21, the second layer baffle 22 and the third layer baffle 23 cover three surfaces of the workpiece from bottom to top, and the first layer baffle 21, the second layer baffle 22 and the third layer baffle 23 are fixed into a whole by screws 24.

As shown in fig. 11, in this embodiment, a plurality of aluminum profile sliding rails 25 are criss-cross arranged on the upper end surface of the third baffle 23, a mounting frame 29 is arranged on the third baffle 23, and sliding block assemblies slidably connected with the aluminum profile sliding rails 25 are arranged at four legs of the mounting frame 29, preferably, the mounting frame 29 is composed of four connecting pieces, and two of the connecting pieces symmetrically arranged are in an inverted U shape to form the four legs of the mounting frame; the sliding block assembly comprises a sliding connecting block 26, and the sliding connecting block 26 is slidably connected with the aluminum profile sliding rail 25 through a plurality of bolts.

The aluminum profile slide rail 25 is used for increasing the strength of the whole frame and preventing the baffle from seriously deforming in moving; the purpose of the mounting 29 is to provide a gripping point for the gripper to grip the blind.

As shown in fig. 11, in this embodiment, the first layer baffle 21, the second layer baffle 22 and the third layer baffle 23 are provided with an avoiding hole for avoiding the stud at the stud position of the workpiece, and a circular baffle 27 for avoiding the hole is provided at the avoiding hole, so as to prevent aluminum scraps from falling into the workpiece cavity from the hole position.

As shown in fig. 11, in the present embodiment, the shielding and air-blowing component includes an air outlet assembly, the air outlet assembly includes a plurality of air-blowing nozzles 28 disposed at the milling position of the workpiece, the air-blowing nozzles 28 are connected to an air source through a pipeline, and are used for blowing away the aluminum scraps splashed at the milling position away from the workpiece; the blowing nozzle 28 is composed of an elbow and a quick plug, and the blowing direction can be flexibly changed.

Because the cavities and holes of the workpiece cannot contain aluminum scraps, a shielding mode is selected to prevent the aluminum scraps from entering the cavities and holes. As shown in fig. 1, the beam in the middle of the workpiece is lower than the beams on the sides, creating a step. In the manner shown in fig. 9, the aluminum scraps generated in the milling process of the workpiece are shielded by three layers of baffles. The first baffle plate is a large dry plate made of light material, and the main cavity and the hole sites are shielded. Because the first layer of baffle 21 and the roof beam all around of work piece have the difference in height, consequently made second layer of baffle 22 and connected on first layer of baffle 21, the other end of second layer of baffle 22 is close to the work piece isolated aluminium bits and falls into the work piece cavity. The third layer of baffles 23, designed to block the holes in the beam, is placed on the beam and is attached to the first layer of baffles 21 by means of screws 24 together with the second layer of baffles 22. The third layer of baffles 23 also provides a recess 30 for a CNC tool to avoid milling the baffles. Simultaneously in order to reduce the piling up and the subsidiary of aluminium bits with baffle self, also increased a big baffle of stainless steel and sheltered from the frame cavity of baffle, prevent that the aluminium bits from falling into the baffle cavity, remove the baffle and fall into in the work piece again. An air outlet assembly is also added to the baffle plate and is supplied and controlled by a valve island on the outer side. The valve terminal and the pipeline are used for inserting air into the baffle plate through quick insertion, air is blown away when a CNC (computer numerical control) machine tool mills a welding seam, and the risk that aluminum chips fall into a workpiece is reduced.

As shown in fig. 3, the positioning support pressing jig includes a plurality of floating positioning support devices 31, which are respectively provided on the machine body, for supporting the workpiece and the baffle.

As shown in fig. 4-5, in the present embodiment, the floating positioning and supporting device 31 includes a mounting bracket 311 fixed on the machine body, the mounting bracket 311 is provided with a transverse cylinder 312, an output end of the transverse cylinder 312 is connected with a connecting piece 313, a guide groove is formed from top to bottom, a positioning support block 314 in sliding contact fit with the guide groove is arranged in the guide groove, an upper end of the positioning support block 314 extends out of the connecting piece 313, and a spring 315 is arranged between a bottom surface of the guide groove and a lower end of the positioning support block 314; the mounting bracket 311 is provided with a blowing head 35; a guide groove is formed in the lower end face of the positioning support block 314, a screw rod 316 is arranged at the lower end of the connecting piece 313, the screw rod 316 penetrates through the connecting piece and extends into the guide groove, and the spring 315 is sleeved on the screw rod 316; a shaft sleeve 317 is transversely arranged in the connecting part 313, a limit block 318 is arranged in the shaft sleeve 317, the end face of the limit block 318 extending into the guide groove is an inclined face, a tangent plane 319 in contact fit with the inclined face is cut on the side face of the positioning support block 314 close to the limit block 318, and the tangent plane is in a hook shape so as to realize the limit of the positioning support block 314 during the up-and-down movement.

The floating support is due to the compression of the spring 315 at all times, and the spring 315 always gives the support an upward force, leaving the support in an extended state under natural conditions. The workpiece is placed on the positioning supporting block, and the positioning supporting block 314 moves downwards to enable the compression amount of the compression spring to be larger due to the self weight of the workpiece and the downward force of the pressure head, so that the supporting is balanced in force and is stabilized at one position; finally, the transverse cylinder 312 will extend to drive the ejector head to fix the positioning support block 314 at the position; the floating support achieves the purpose of supporting the workpiece.

As shown in fig. 3, the positioning support pressing fixture includes a plurality of weld milling press-fixing devices, which are respectively disposed on the machine body, for pressing down and fixing the workpiece and the baffle plate when the weld is milled.

As shown in fig. 3, the positioning support pressing fixture includes a plurality of bushing milling press-fixing devices respectively disposed on the machine body for press-fixing the workpiece and the baffle plate when milling the bushing.

As shown in fig. 6-8, in this embodiment, the weld milling hold-down fixture and the liner milling hold-down fixture each include a support member and a hold-down member, the support part 32 of the welding seam milling downward pressing fixing device and the support part 33 of the bushing milling downward pressing fixing device comprise a support 321 fixed on the machine body, an inverted L-shaped connecting block 322 is arranged on the side surface of the support 321, an I-shaped limiting block 337 is arranged at the lower end of the upper part of the inverted L-shaped connecting block 322, a double-guide-post cylinder 338 is arranged on the other side surface of the support 321, a connecting plate 335 is arranged at the upward output end of the double-guide-post cylinder 338, a convex limiting block 336 matched with the connecting plate 335 is arranged below the I-shaped limiting block 337 of the connecting plate 335, the connecting plate 335 is provided with a supporting block 334 for supporting a workpiece, the connecting plate 335 is provided with a blowing head 35, and preferably, the blowing head 335 is fixedly connected with the connecting plate 335 through a bracket. After a workpiece is pressed by a pressing part on the clamp, the double-guide-post cylinder 338 is ventilated to push the movable part out to the limiting block to play a role, the supporting block 334 and the workpiece baffle plate position the workpiece, and the machine tool mills the workpiece; the blowing head 35 blows after the workpiece is taken away, so that aluminum scraps on the support are prevented from influencing subsequent positioning and product quality.

As shown in fig. 6-8, in this embodiment, the pressing member of the weld milling downward-pressing fixture and the pressing member of the bushing milling downward-pressing fixture both include a supporting base 341 fixed on the machine body, the supporting base 341 is provided with a cylinder driving mounting base 342, the cylinder driving mounting base 342 is provided with a pressing bracket 343, the pressing bracket 343 is hinged to two side surfaces of the cylinder driving mounting base 342, so that the driving of the pressing bracket 343 can be realized, and a workpiece pressing shielding assembly is arranged below the pressing bracket 343 near the end of the workpiece; the workpiece pressing and shielding assembly comprises a connecting fixing block 340 fixedly connected with a pressing bracket 343, a pressing head 349 is fixedly connected with the lower end of the connecting fixing block 340 through an adjusting pad 344, the workpiece pressing and shielding assembly further comprises a workpiece shielding plate 348 fixedly connected with the tail end of the pressing bracket 343, an upper limiting block 347 is arranged at the lower end of the pressing bracket 343, an installation block 346 is arranged on the side surface of the supporting seat 341, and a lower limiting block 345 matched with the upper limiting block 347 is arranged at the upper end of the installation block 346.

The floating positioning support device, the welding seam milling downward pressing fixing device and the bush milling downward pressing fixing device are all provided with a workpiece detection switch 350 and a cover plate detection switch 351.

When a workpiece detection switch and a cover plate detection switch on the clamp have signals, the floating support and part of the double-guide-column air cylinder are in place, the air cylinder receives the signals, the shielding cover plate and the pressure head connected to the pressing arm are turned over in place, and the limiting block plays a role. Thereby the pressing part presses the workpiece and the shielding blowing assembly.

The adjusting pad 344 is used for adjusting the height position of the pressing head 349, and as the pressing bracket 343, the connecting fixing block 340 and the pressing head 349 have processing errors in the processing process and the accumulated difference between the accumulated position of the pressing head 349 and a theoretical value is large, the height position of the pressing head 349 is adjusted by one adjusting link of the adjusting pad 344.

As shown in fig. 6 to 8, in this embodiment, the floating positioning support device, the weld milling hold-down fixture device, and the bushing milling hold-down fixture device are all provided with blowheads 35, the blowheads 35 are connected to the air source through pipes, blow air against the supports, blow away aluminum scraps falling off when taking the workpieces, and avoid the aluminum scraps remaining to influence the later assembly process.

Because two benchmarks are used during milling of a workpiece, one set of benchmarks can be changed during the process of machining the welding line and when the workpiece is machined, the clamp is in an initial state, the shielding and the pressing head are both in an open state, the floating positioning and supporting device 31 is in a constantly extending state, the workpiece is placed in place by the gripper, then the multilayer baffle is in place, then the welding line milling and pressing fixing device 32 and the lining milling and pressing fixing device 33 of the clamp are in place, finally the double-guide-rod air cylinder of the welding line milling and pressing fixing device extends and supports in place, and the workpiece and the multilayer baffle are fixedly clamped. After the fixture finishes positioning the workpiece, the machine tool starts to mill the welding line, meanwhile, the air outlet assembly on the baffle starts to work, aluminum scraps flying to the corner of the welding line of the workpiece during milling are blown away, so that the aluminum scraps cannot be transferred into a cavity and a hole of the workpiece, and after the welding line is milled, the machine tool starts to change tools. The fixture is replaced by a second set of reference positioning, the double guide rods of the bushing milling press-down fixing device 33 extend out to be supported in place, and the double guide rod air cylinders of the welding seam milling press-down fixing device 32 retract to be supported and retracted. And the machine tool begins to mill the bush of the workpiece, and returns to the original position after milling is finished. The clamp is shielded and the pressure head is opened, the gripper respectively places the baffle plate on the storage rack, and the workpiece is conveyed to the next station. The detection switch on the clamp detects that no workpiece exists, then the same air blowing head 35 is arranged beside each support and provided with a floating component, air is blown towards the supports, aluminum scraps falling off when the workpiece is taken are blown away, and the influence on the processing quality of the workpiece and the scratch of the aluminum scraps are prevented.

As shown in fig. 12, the blocking chip removal blowing part includes a chip removal device installed on the machine body and located below the workpiece, and the chip removal device includes a conveyor belt 43 and inclined chip removal guide plates 41 located at the upper ends of both sides of the conveyor belt.

In this embodiment, the inclined debris discharge guide plate 41 is fixed on the machine body through a fixing bracket 42; the inclined angle of the inclined chip removal guide plate 41 is 30-90 degrees; the number of the conveying belts 43 is two, and the two conveying belts 43 are arranged in parallel; every conveyer belt 43 both sides all are equipped with slope chip removal guide plate 41, and adjacent integrative the setting between the slope chip removal guide plate 41.

In this embodiment, the upper end of the inclined chip removal guide plate 1 is provided with a plurality of chip removal blowing devices, each chip removal blowing device comprises a chip removal nozzle 45, and the chip removal nozzles 45 are connected with an air source through a blowing pipeline 44 and controlled through a valve island. And the aluminum scraps are blown into the belt conveyor, so that the accumulation of the aluminum scraps on the baffle is reduced. The chip removal blowing device is controlled by the valve terminal to remove aluminum chips to the outside of the clamp as much as possible, so that manual intervention on an automatic production line is reduced.

The inclined baffle plate is arranged on the machine body, so that aluminum scraps which are removed in CNC milling fall into the belt conveyor along the inclined baffle plate, and then are conveyed out of the clamp to a conveying system of a machine tool to be conveyed to a specified position; the inclined baffle is beneficial to reducing the manual cleaning times, increasing the production efficiency and reducing the labor cost; the reason is that the CNC milling position of the station is dispersed, aluminum scraps can not be controlled to splash, and the aluminum scraps fall between a more dense foot seat and the air cylinder, so that the cleaning difficulty and workload are increased; therefore, four large galvanized steel plates are arranged below the workpiece to be used as inclined chip removal guide plates 41, and aluminum chips are blocked and cannot fall below the machine body. The inclined chip removal guide plate 41 is connected to the machine body by a fixed bracket 42, and the angle is increased as much as possible, so that the aluminum chips slide down along the direction of the inclined chip removal guide plate 41 under the action of gravity; but the aluminum scraps are prevented from falling off due to the installation of screws and the like in some positions, the chip removal spray head 45 for blowing air is additionally arranged at the top of the inclined chip removal guide plate, the aluminum scraps are blown into the belt conveyor, the accumulation of the aluminum scraps on the inclined chip removal guide plate 41 is reduced, the aluminum scraps are discharged outside the clamp as much as possible, and the manual intervention on an automatic production line is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.