阅读说明：本技术 一种数控机床加工中心 (Numerical control machine tool machining center ) 是由 汪淳池 陈刚 于 2021-07-20 设计创作，主要内容包括：本发明涉及数控机床技术领域,尤其是涉及一种数控机床加工中心,包括机架,机架的内部上端设置有滑动组件一,且滑动组件一的前端外表面设置有滑动组件二,机架的内部下端设置有操作台,且操作台的下端外表面设置有滑动组件三,操作台通过滑动组件三与机架前后活动连接,滑动组件二的前端外表面设置有钻头,且操作台的上端外表面等距离开设有若干个固定孔,操作台的上端外表面设置有金属板材,利用固定机构实现金属板材于操作台面上的固定,并进一步通过滑动组件一、滑动组件二以及滑动组件三的相互配合实现钻头以及操作台的位移用于满足产品加工设计。该装置操作方式简单,且相较于传统螺纹卡件固定方式而言不易松动、脱落,具有优异的固定效果。(The invention relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool machining center which comprises a rack, wherein the upper end in the rack is provided with a first sliding assembly, a second sliding component is arranged on the outer surface of the front end of the first sliding component, an operating platform is arranged at the lower end of the inside of the machine frame, the outer surface of the lower end of the operating platform is provided with a third sliding component, the operating platform is movably connected with the front and the back of the machine frame through the third sliding component, the outer surface of the front end of the second sliding component is provided with a drill bit, a plurality of fixing holes are equidistantly arranged on the outer surface of the upper end of the operating platform, a metal plate is arranged on the outer surface of the upper end of the operating platform, the metal plate is fixed on the operating platform surface by utilizing a fixing mechanism, and further, the mutual matching of the first sliding assembly, the second sliding assembly and the third sliding assembly is realized, so that the displacement of the drill bit and the operating platform is used for meeting the product processing design. The device operation mode is simple, and is difficult not hard up, drops compared with traditional screw thread fastener fixed mode, has excellent fixed effect.)

1. The utility model provides a digit control machine tool machining center, includes frame (1), its characterized in that: the drilling machine is characterized in that a first sliding assembly (11) is arranged at the upper end inside the rack (1), a second sliding assembly (12) is arranged on the outer surface of the front end of the first sliding assembly (11), an operating table (14) is arranged at the lower end inside the rack (1), a third sliding assembly (13) is arranged on the outer surface of the lower end of the operating table (14), the operating table (14) is movably connected with the rack (1) in a front-back mode through the third sliding assembly (13), a drill bit (2) is arranged on the outer surface of the front end of the second sliding assembly (12), a plurality of fixing holes (15) are formed in the outer surface of the upper end of the operating table (14) at equal intervals, a metal plate (3) is arranged on the outer surface of the upper end of the operating table (14), fixing mechanisms (4) are arranged inside the fixing holes (15), and are distributed in a diagonal mode and are fixed at the corners of the metal plate (3) in a clamping mode for two groups, the fixing mechanism (4) is used for fixing the metal plate (3) on the surface of the operating platform (14), and the mutual matching of the sliding assembly I (11), the sliding assembly II (12) and the sliding assembly III (13) is further used for realizing the displacement of the drill bit (2) and the operating platform (14) so as to meet the product processing design;

the fixing mechanism (4) comprises a left clamping plate (41), a right clamping plate (42), a pressing plate (43), a threaded cylinder (44), a contraction box (45), a bolt (46), a nut (47), a threaded rod (48), a gear (49), a fixing piece (481), a left extension piece (411), an upper rack (412), a right extension piece (421), a lower rack (422), a movable cavity (452), a rectangular contraction box (45) fixedly connected to the outer surface of the front end of the threaded cylinder (44), and a threaded rod (48) penetrating through the outer surface, wherein the lower end of the threaded rod (48) extends to the lower end of the threaded cylinder (44) and is fixedly connected with a strip-shaped structure fixing piece (481), the pressing plate (43) is fixedly connected to the position of the outer surface of the threaded cylinder (44) close to the upper end, the pressing plates (43) are in two groups of left-right symmetrical distribution 'splayed' structure design, and the left and right sides of the contraction box (45) are respectively provided with the left clamping plate (41) and the right clamping plate (42) which are identical in structure, and both sides of the movable cavity (452) are respectively provided with a movable cavity (452), the adjacent surfaces of the left clamping plate (41) and the right clamping plate (42) are respectively fixedly connected with a left extending piece (411) and a right extending piece (421) which have the same size, the left clamping plate (41) and the right clamping plate (42) are respectively inserted into the movable cavity (452) through the left extending piece (411) and the right extending piece (421), the adjacent surfaces of the left extending piece (411) and the right extending piece (421) are respectively and fixedly connected with an upper rack (412) and a lower rack (422), a gear (49) is arranged between the left clamping plate and the right clamping plate, the gear (49), the upper rack (412) and the lower rack (422) are meshed and connected, the outer surface of the front end of the contraction box (45) is correspondingly provided with a bolt (46) at the central position of the gear (49), the outer surface of the bolt (46) is in threaded connection with a nut (47), and the rear end of the bolt (46) penetrates through the contraction box (45) and extends to the inside of the movable cavity (452) and is connected with the center of the gear (49) The bolt (46) is movably connected with the contraction box (45), the corner of the metal plate (3) is fixed through the pressing sheet (43) and the fixing sheet (481) by matching the threaded cylinder (44) through the threaded rod (48), the clockwise driving gear (49) is further driven by screwing the bolt (46), the upper rack (412) and the lower rack (422) which are in meshing transmission with the clockwise driving gear move oppositely, and the left clamping plate (41) and the right clamping plate (42) are further stretched and moved oppositely through the left extending sheet (411) and the right extending sheet (421) to further clamp and fix the corner of the metal plate (3);

the utility model discloses a metal plate edge fixing device, including shrink box (45), left side extension piece (411), right side extension piece (421) both ends surface and shrink box (45) inside activity chamber (452) inner wall around all be provided with stop gear (6), and the rear end surface of screw thread section of thick bamboo (44) is provided with block mechanism (5) for supplementary fixed establishment (4) are fixed to sheet metal (3) corner.

2. The machining center of a numerical control machine tool according to claim 1, wherein: the clamping mechanism (5) comprises an air bag (52), an elastic sheet (54), an air injection pipe (55), an air plug (56), an air chamber (57), a movable groove (58), a screw rod (59) and an inner sleeve (591), the rear end of the threaded cylinder (44) is fixedly connected with the splayed structure elastic sheet (54), the inner surface of the elastic sheet (54) is glued with the air bag (52), the movable groove (58) is formed in the contraction box (45), the arc-shaped structure air plug (56) is arranged in the movable groove (58), the arc-shaped structure air chamber (57) is formed in the corresponding area of the front end outer surface of the threaded cylinder (44) and the air plug (56), the air injection pipe (55) is arranged in the two sides of the air chamber (57) in a penetrating manner, the rear end of the air injection pipe (55) is connected with the air bag (52), the inner sleeve (591) is fixedly connected to the middle of the front end outer surface of the air plug (56), and the screw rod (59) is connected with the inner sleeve (591) through internal threads, the front end of the screw rod (59) is fixed with the center of the rear end of the gear (49).

3. The machining center of a numerical control machine tool according to claim 2, wherein: gasbag (52) comprise the silica gel material, and its rear end surface is glued and is had the wearing layer, the upper end of gasbag (52) is connected with air-supply pipe (53), and the upper end of air-supply pipe (53) is connected with air cock (51), and air cock (51) are platykurtic structure and glue and connect the lower extreme surface at preforming (43).

4. The machining center of a numerical control machine tool according to claim 1, wherein: stop gear (6) are including block strip (63), plectrum (64), block groove (65), at least three group block grooves (65) are seted up to the impartial distance in both sides around activity chamber (452) inner wall, and the inside in block groove (65) sets up block strip (63), set up plectrum (64) between block strip (63) and block groove (65), the rear end of plectrum (64) is connected in block groove (65) internal surface middle part through the embedded rotation of pivot, and torsion spring is cup jointed to the pivot surface, plectrum (64) are the arc structure and distribute, and high tenacity metal constitutes, and turns over a book under its silent state, pastes in block groove (65) inner wall right side under the compression state.

5. The machining center of a numerical control machine tool according to claim 4, wherein: at least three groups of angle grooves (62) which are matched with the free ends of the shifting pieces (64) in angle are formed in the outer surface of the rear end of the clamping strip (63) at equal intervals, and balls (61) are connected at the corner of the rear end of the clamping strip (63) in an embedded mode.

6. The machining center of a numerical control machine tool according to claim 1, wherein: the upper end and the lower end of the left extending piece (411) and the right extending piece (421) are fixedly connected with T-shaped structure sliding blocks (451), sliding grooves are formed in the corresponding positions of the inner wall of the movable cavity (452) and the T-shaped sliding blocks (451), the sliding blocks (451) are in sliding connection with the sliding grooves in a matched mode, and the adjacent ends of the upper rack (412) and the lower rack (422) are wrapped on the outer surface of the gear (49) in an arc-shaped structure.

Technical Field

The invention relates to the technical field of numerical control machines, in particular to a machining center of a numerical control machine.

Background

CNC (numerical control machine) is a computer numerical control machine tool for short, and is an automatic machine tool with a program control system. The control system is capable of logically processing a program defined by a control code or other symbolic instructions and decoding the program to operate the machine tool to machine a part. The CNC machining center is a highly automated multifunctional numerical control machine tool with a tool magazine and an automatic tool changer. The machining center can be divided into a three-axis machining center, a four-axis machining center and a five-axis machining center according to the number of control axes. At present, the requirement can be met by adopting a three-axis machining center in most cases;

the inventor finds that at least the following problems in the prior art are not solved: 1. especially, the device is small, the operation is easy to favor by consumers, especially for automobile model enthusiasts, the device can meet the processing design of the consumers on small workpieces, the use efficiency of the device is high, however, the traditional small three-axis numerical control machine tool usually only clamps and fixes metal plates through traditional thread clamping pieces in the process of processing the metal plates, and due to the processing requirements of workpieces in the process of processing the three-axis machine tool, the machine tool needs to frequently carry the replacement positions of the metal plates to meet the processing requirements of drill bits, so the traditional thread clamping pieces are poor in fixing effect, are easy to loosen, cause irreversible deviation of processing precision, the rejection rate is high, and the production cost of the consumers is increased.

Therefore, a numerical control machine tool machining center is provided.

Disclosure of Invention

The present invention is directed to a machining center of a numerical control machine tool, so as to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a digit control machine tool machining center, includes the frame, the inside upper end of frame is provided with slip subassembly one, and the front end surface of slip subassembly one is provided with slip subassembly two, the inside lower extreme of frame is provided with the operation panel, and the lower extreme surface of operation panel is provided with slip subassembly three, swing joint around the operation panel passes through slip subassembly three and the frame, the front end surface of slip subassembly two is provided with the drill bit, and the upper end surface equidistance of operation panel has seted up a plurality of fixed orifices, the upper end surface of operation panel is provided with sheet metal, the inside of fixed orifices is provided with fixed establishment, and fixed establishment is two sets of diagonal form distribution and block to fix at sheet metal edge for being two sets of, utilizes fixed establishment to realize sheet metal fixed on the operation panel to further realize the displacement of drill bit and operation panel through mutually supporting of slip subassembly one, slip subassembly two and slip subassembly three and be used for satisfying product processing Designing;

the fixing mechanism comprises a left clamping plate, a right clamping plate, a pressing sheet, a thread cylinder, a contraction box, a bolt, a nut, a threaded rod, a gear, a fixing sheet, a left extension sheet, an upper rack, a right extension sheet, a lower rack, a movable cavity, a rectangular contraction box fixedly connected with the outer surface of the front end of the thread cylinder, a threaded rod penetrating through the threaded rod, a lower end of the threaded rod extending to the lower end of the thread cylinder and fixedly connected with a strip-shaped structure fixing sheet, the outer surface of the thread cylinder close to the upper end is fixedly connected with the pressing sheet, the pressing sheets are in two groups of 'eight' -shaped structure design which are symmetrically distributed in a left-right mode, the left clamping plate and the right clamping plate which are identical in structure are respectively arranged on the left side and the right side of the contraction box, the movable cavity is respectively arranged on the two sides of the contraction box, the adjacent surfaces of the left clamping plate and the right clamping plate are respectively fixedly connected with the left extension sheet and the right extension sheet which are identical in size, and the left clamping plate and the right clamping plate are respectively inserted into the movable cavity through the left extension sheet and the right extension sheet, the metal plate corner fixing device comprises a left extending piece, a right extending piece, a left clamping plate, a right clamping plate, a bolt, a nut, a screw rod, a screw tube, a pressing piece, a fixing piece, a nut, a screw rod, a screw bolt, a screw rod, a pressing piece, a fixing piece, a screw bolt, a clockwise driving gear, a left clamping plate, a right clamping plate, a left extending piece, a right extending piece, a left clamping plate, a right clamping plate and a nut, wherein the left clamping plate, the right clamping plate, the left clamping plate, the right clamping plate, the left clamping plate and the right clamping plate;

and limiting mechanisms are arranged between the outer surfaces of the front end and the rear end of the left extension piece and the right extension piece and the inner wall of the inner movable cavity of the shrinkage box, and a clamping mechanism is arranged on the outer surface of the rear end of the threaded cylinder and used for assisting the fixing mechanism in fixing the corners of the metal plate.

Preferably, block mechanism includes gasbag, flexure strip, gas injection pipe, air lock, air chamber, activity groove, screw rod, inner skleeve, the rear end fixed connection splayed structure flexure strip of a screw thread section of thick bamboo, and the internal surface of flexure strip splices the gasbag, the activity groove is seted up to the inside of shrink box, and the inside in activity groove sets up arc structure air lock, the front end surface of a screw thread section of thick bamboo corresponds the region with the air lock and sets up arc structure air chamber, the inside gas injection pipe that runs through in both sides of air chamber, and gas injection pipe rear end and air bag connection, the front end surface middle part fixedly connected with inner skleeve of air lock, and the inside threaded connection screw rod of inner skleeve, the front end and the gear rear end central point of screw rod put fixed + + + activity groove, outer wall porosely, run through and sealing connection between inner skleeve and the activity inslot wall.

Preferably, the gasbag comprises the silica gel material, and its rear end surface is spliced there is the wearing layer, the upper end of gasbag is connected with the gas-supply pipe, and the upper end of gas-supply pipe is connected with the air cock, and the air cock is the platykurtic structure and splices the lower extreme surface at the preforming.

Preferably, stop gear includes block strip, plectrum, block groove, at least three groups of block grooves are seted up to both sides impartial distance around the activity intracavity wall, and the inside in block groove sets up the block strip, set up the plectrum between block strip and the block groove, the rear end of plectrum is connected in the middle part of block inslot surface through the embedded rotation of pivot, and torsion spring is cup jointed to the pivot surface, the plectrum is the distribution of arc structure, and high tenacity metal constitutes, and turns over under its silent state and turn over, laminates in block inslot inner wall right side under the compression state.

Preferably, at least three groups of angle grooves matched with the free ends of the shifting pieces in angle are formed in the outer surface of the rear end of the clamping strip at equal intervals, and balls are connected to corners of the rear end of the clamping strip in an embedded mode.

Preferably, the upper end and the lower end of the left extension piece and the right extension piece are fixedly connected with T-shaped structure sliding blocks, sliding grooves are formed in the positions, corresponding to the T-shaped sliding blocks, of the inner wall of the movable cavity, the sliding blocks are in sliding connection with the sliding grooves in a matched mode, and the adjacent ends of the upper rack and the lower rack are wrapped on the outer surface of the gear in an arc-shaped structure.

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

1. the fixing mechanism is added in the device, the threaded rod is matched with the threaded cylinder, the pressing sheet and the fixing sheet are installed at the appropriate position on the surface of the operating platform, the fixing hole is inserted, so that the metal plate corner is fixed, the gear is further driven clockwise by screwing the bolt, the upper rack and the lower rack which are in meshing transmission with the threaded cylinder move oppositely, the left extending sheet and the right extending sheet stretch the left clamping plate and the right clamping plate to move oppositely, so that the metal plate corner is further clamped and fixed, the operation mode of the device is simple, and compared with the traditional thread clamping piece fixing mode, the device is not easy to loosen and fall off, and has an excellent fixing effect;

2. the clamping mechanism is added in the device, so that the fixing mechanism can be matched with the fixing mechanism to further clamp and fix the edges and corners of the metal plate and adhere the surfaces of the edges and corners of the metal plate through air bag expansion, slight shaking and collision of the metal plate to the fixing mechanism in the processing process are buffered, hard contact between the metal plate and the fixing mechanism is avoided, the abrasion degree in the metal plate fixing process is reduced, and after the processing is finished, the fixing mechanism can be loosened to blow and clean metal powder generated by processing the surface of the metal plate through an air nozzle, the probability that dust remains and adheres to the surface of the metal plate is reduced, and the practicability of the device is further improved;

3. through adding stop gear and can further injecing the left grip block after adjusting and right grip block position, it is not good to prevent that bolt and nut are not hard up to cause fixed effect in the operation process, and this stop gear possesses automatic block and the function that resets simultaneously, makes it use repeatedly, satisfies the processing demand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a top view of the securing mechanism of the present invention;

FIG. 3 is a combination view of the securing mechanism and the engaging mechanism of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the invention at B of FIG. 4;

FIG. 6 is a structural view of the threaded cartridge and threaded rod of the present invention;

fig. 7 is a structural view of the gear and the upper and lower racks of the present invention.

Description of reference numerals:

1. a frame; 11. a first sliding component; 12. a second sliding component; 13. a third sliding component; 14. an operation table; 15. a fixing hole;

2. a drill bit; 3. a metal plate;

4. a fixing mechanism; 41. a left clamping plate; 42. a right clamping plate; 43. tabletting; 44. a threaded barrel; 45. a shrink box;

46. a bolt; 47. a nut; 48. a threaded rod; 49. a gear; 481. fixing sheet

411. A left extension piece; 412. an upper rack; 421. a right extension piece; 422. a lower rack; 451. a slider; 452. a movable cavity;

5. a clamping mechanism; 51. an air tap; 52. an air bag; 53. a gas delivery pipe; 54. an elastic sheet; 55. a gas injection pipe; 56. an air lock; 57. an air chamber; 58. a movable groove; 59. a screw; 591. an inner sleeve;

6. a limiting mechanism; 61. a ball bearing; 62. an angular groove; 63. clamping the strip; 64. a shifting sheet; 65. an engaging groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 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.

Referring to fig. 1 to 7, the present invention provides a technical solution:

a numerical control machine tool machining center comprises a machine frame 1, wherein a first sliding assembly 11 is arranged at the upper end inside the machine frame 1, a second sliding assembly 12 is arranged on the outer surface of the front end of the first sliding assembly 11, an operating table 14 is arranged at the lower end inside the machine frame 1, a third sliding assembly 13 is arranged on the outer surface of the lower end of the operating table 14, the operating table 14 is movably connected with the machine frame 1 in a front-back mode through the third sliding assembly 13, a drill bit 2 is arranged on the outer surface of the front end of the second sliding assembly 12, a plurality of fixing holes 15 are formed in the outer surface of the upper end of the operating table 14 at equal intervals, a metal plate 3 is arranged on the outer surface of the upper end of the operating table 14, fixing mechanisms 4 are arranged inside the fixing holes 15, the two groups of the fixing mechanisms 4 are distributed in a diagonal mode and are clamped and fixed at the corners of the metal plate 3, and the fixing mechanisms 4 are used for fixing the metal plate 3 on the surface of the operating table 14, the mutual matching of the first sliding assembly 11, the second sliding assembly 12 and the third sliding assembly 13 is further utilized to realize the displacement of the drill bit 2 and the operating platform 14 so as to meet the product processing design;

the fixing mechanism 4 comprises a left clamping plate 41, a right clamping plate 42, a pressing sheet 43, a threaded barrel 44, a shrinkage box 45, a bolt 46, a nut 47, a threaded rod 48, a gear 49, a fixing sheet 481, a left extension sheet 411, an upper rack 412, a right extension sheet 421, a lower rack 422, a movable cavity 452, a rectangular shrinkage box 45 fixedly connected with the outer surface of the front end of the threaded barrel 44 and penetrating the threaded rod 48 therein, wherein the lower end of the threaded rod 48 extends to the lower end of the threaded barrel 44 and is fixedly connected with a strip-shaped fixing sheet 481, the pressing sheet 43 is fixedly connected with the position of the outer surface of the threaded barrel 44 close to the upper end, the pressing sheets 43 are in two groups of design of a structure shaped like a Chinese character 'ba' in a bilateral symmetry distribution, the left and right sides of the shrinkage box 45 are respectively provided with the left and right clamping plates 41 and 42 with the same structure, the two sides of the shrinkage box are respectively provided with the movable cavities 452, the adjacent surfaces of the left and right clamping plates 41 and 421 are respectively fixedly connected with the left extension sheet 411 and right extension sheet with the same size, the left holding plate 41 and the right holding plate 42 are respectively inserted into the movable cavity 452 through the left extending piece 411 and the right extending piece 421, the adjacent surfaces of the left extending piece 411 and the right extending piece 421 are respectively and fixedly connected with the upper rack 412 and the lower rack 422, a gear 49 is arranged between the left extending piece 411 and the right extending piece 421, the gear 49, the upper rack 412 and the lower rack 422 are engaged and connected, the outer surface of the front end of the shrinkage box 45 is correspondingly provided with a bolt 46 at the center of the gear 49, the outer surface of the bolt 46 is in threaded connection with a nut 47, the rear end of the bolt 46 penetrates through the shrinkage box 45 and extends into the movable cavity 452 to be connected with the center of the gear 49, the bolt 46 is movably connected with the shrinkage box 45, the edge of the metal plate 3 is fixed by the pressing piece 43 and the fixing piece 481 through the threaded rod 48 in cooperation with the threaded cylinder 44, the clockwise driving gear 49 through screwing the bolt 46, and the upper rack 412 and the lower rack 422 in engagement and transmission are moved oppositely, the left clamping plate 41 and the right clamping plate 42 are further pulled by the left extending piece 411 and the right extending piece 421 to move oppositely, so that the corners of the metal plate 3 are further clamped and fixed;

all be provided with stop gear 6 between the inside activity chamber 452 inner wall of the front and back both ends surface of left side extension piece 411, right side extension piece 421 and shrink box 45, and the rear end surface of a screw thread section of thick bamboo 44 is provided with block mechanism 5 for supplementary fixed establishment 4 is fixed to 3 corners of sheet metal.

The user inserts the fixed hole 15 on the surface of the operation table 14 through the strip-shaped fixing plate 481 to rotate the threaded cylinder 44, so that the strip-shaped fixing plate 481 is rotated and dislocated to abut against the edge of the fixed hole 15 on the lower end surface of the operation table 14, at the moment, the user rotates the threaded rod 48, the common length of the threaded rod 48 and the threaded cylinder 44 is adjusted through threaded connection with the threaded cylinder 44, the strip-shaped fixing plate 481 and the pressing plate 43 are matched to tightly press and fix the corners of the metal plate 3, at the moment, the user screws the clockwise bolt 46 to force the gear 49 to be meshed with the upper rack 412 and the lower rack 422 in the movable cavity 452 for transmission, so that the upper rack 412 and the lower rack 422 move oppositely, further, the left clamping plate 41 and the right clamping plate 42 are pulled by the left extending plate 411 and the right extending plate 421 to move oppositely to further clamp and fix the two side surfaces of the corners of the metal plate 3, and then screws the nut 47 to abut against the front end surface of the shrinkage box 45 to further fix and lock the rotation angle of the bolt 46, the gear 49 is prevented from being accidentally loosened in the subsequent use process, the device is simple in operation mode, and is not easy to loosen and fall off compared with the traditional thread clamping piece fixing mode, and the device has an excellent fixing effect.

As an embodiment of the present invention, as shown in fig. 3 and 4, the clamping mechanism 5 includes an air bag 52, an elastic sheet 54, an air injection pipe 55, an air plug 56, an air chamber 57, a movable groove 58, a screw 59, an inner sleeve 591, the elastic sheet 54 with a splayed structure is fixedly connected to the rear end of the threaded cylinder 44, the inner surface of the elastic sheet 54 is glued with the air bag 52, the inner part of the contraction box 45 is provided with a movable groove 58, an arc-shaped air plug 56 is arranged in the movable groove 58, an arc-shaped air chamber 57 is arranged on the outer surface of the front end of the threaded cylinder 44 in the area corresponding to the air plug 56, air injection pipes 55 are arranged in the two sides of the air chamber 57 in a penetrating manner, and the rear end of the air injection pipe 55 is connected with the air bag 52, the middle part of the outer surface of the front end of the air plug 56 is fixedly connected with an inner sleeve 591, and the inner part of the inner sleeve 591 is connected with a screw 59 in a threaded manner, and the front end of the screw 59 is fixed with the central position of the rear end of the gear 49.

When the device works, a user fixes the corners of the metal plate 3 through the fixing mechanism 4, the corners of the metal plate 3 are firstly clamped and fixed between the splayed elastic sheets 54, in the subsequent process of rotating the gear 49, the gear 49 drives the screw 59 to rotate, the screw 59 is in threaded connection with the inner sleeve 591 and rotates in a reverse threaded manner, at this time, the length of the screw 59 and the length of the inner sleeve 591 are increased, at this time, the inner sleeve 591 further pushes the air plug 56 to displace in the movable groove 58, the air plug 56 is designed to be in an arc-shaped plate structure, on one hand, the air compression amount can be increased, on the other hand, the air plug 56 is matched with the movable groove 58, the inner sleeve 591 is further prevented from rotating along with the screw 59, the air plug 56 compresses air into the air chamber 57 until the air plug 56 is completely matched with the air chamber 57, at this time, the air is further injected into the air bag 52 between the elastic sheets 54 through the air injection pipe 55, the air bag 52 is expanded to fill the clamping gap between the elastic sheet 54 and the corner of the metal plate 3, and the air bag 52 in an expanded state is used for buffering and damping possible slight collision in the processing process of the metal plate 3, so that hard clamping friction damage is avoided.

As an embodiment of the present invention, as shown in fig. 3 and 6, the air bag 52 is made of a silicone material, and a wear-resistant layer is bonded to an outer surface of a rear end of the air bag, an air pipe 53 is connected to an upper end of the air bag 52, an air nozzle 51 is connected to an upper end of the air pipe 53, and the air nozzle 51 has a flat structure and is bonded to an outer surface of a lower end of the pressing sheet 43.

When the air bag type metal powder filling machine works, the abrasion-resistant layer glued to the rear end face of the air bag 52 can reduce friction damage of the air bag 52 and the metal plate 3, the air nozzle 51 connected to the upper end of the air bag 52 through the air conveying pipe 53 is in a sealing state immediately when the fixing mechanism 4 presses the metal plate 3 through the pressing piece 43, normal expansion of the air bag 52 is guaranteed, meanwhile, once the metal plate 3 is processed, the pressing piece 43 of the fixing mechanism 4 is loosened, air inside the air bag 52 is sprayed out through the air nozzle 51, the processing position of the upper end face of the metal plate 3 is blown immediately, metal powder scraps generated by surface processing of the metal plate are blown, and production efficiency of products is effectively improved.

As an embodiment of the present invention, as shown in fig. 5, the limiting mechanism 6 includes a clamping bar 63, a shifting piece 64, and a clamping groove 65, at least three groups of clamping grooves 65 are disposed at equal distances on the front and back sides of the inner wall of the movable cavity 452, the clamping bar 63 is disposed inside the clamping groove 65, the shifting piece 64 is disposed between the clamping bar 63 and the clamping groove 65, the rear end of the shifting piece 64 is connected to the middle portion of the inner surface of the clamping groove 65 in an embedded manner through a rotating shaft, a torsion spring is sleeved on the outer surface of the rotating shaft, the shifting piece 64 is distributed in an arc structure, is made of high-toughness metal, and is folded in a silent state and is attached to the right side of the inner wall of the clamping groove 65 in a compressed state.

During operation, the gear 49 is driven clockwise by screwing the bolt 46, the upper rack 412 and the lower rack 422 which are in meshing transmission with the gear 49 move oppositely, the left clamping plate 41 and the right clamping plate 42 are further stretched by the left extending piece 411 and the right extending piece 421 to move oppositely to further clamp and fix the corners of the metal plate 3, in order to avoid the gear 49 from accidentally rotating due to loosening of the bolt 46 to cause tooth dislocation with the upper rack 412 and the lower rack 422, the poking piece 64 is deformed and extruded by the clamping strip 63 in the displacement process of the left extending piece 411 and the right extending piece 421, the poking piece 64 is forced to turn over, the clamping groove 65 is exposed, the clamping strip 63 is completely inserted into the clamping groove 65 to limit the positions of the left extending piece 411 and the right extending piece 421, accidental loosening in the subsequent use process is prevented, and at least three groups of clamping grooves 65 meet the adjustment of displacement distance.

As an embodiment of the present invention, as shown in fig. 5, at least three sets of angular grooves 62 are equidistantly formed on the outer surface of the rear end of the engaging bar 63, the angular grooves being angularly matched with the free ends of the pulling pieces 64, and balls 61 are embedded and connected to the corners of the rear end of the engaging bar 63.

When the clamping device works, the free movable end of the shifting sheet 64 can be assisted to be inserted through the angle groove 62, the shifting sheet 64 is overturned to be attached to the arc-shaped surface of the inner wall of the clamping groove 65, so that the clamping groove 65 can be matched with the clamping strip 63 for clamping and limiting, and simultaneously when the left clamping plate 41 and the right clamping plate 42 need to be reset, the left extending sheet 411 and the right extending sheet 421 need to be displaced in opposite directions, at the moment, the left extending sheet 411 and the right extending sheet 421 are forced to be displaced in opposite directions by the continuous driving gear 49, because the left clamping plate 41 and the right clamping plate 42 have certain elastic characteristics, the clamping strip 63 can meet the re-pre-tightening in a clamping state, at the moment, the clamping strip 63 is displaced to be between the two groups of clamping grooves 65, at the moment, the shifting sheet 64 loses extrusion and is turned over and reset under the action of the rotating shaft and the torsion spring, at the moment, the counter-clockwise rotating gear 49, the left extending sheet 411 and the right extending sheet 421 are displaced oppositely, the clamping strip 63 is matched with the ball 61 to roll under the action of the inclination angle of the shifting sheet 64, the left extension piece 411 and the right extension piece 421 are reset after the guiding deformation and shrinkage.

As an embodiment of the present invention, as shown in fig. 7, the upper and lower ends of the left extending piece 411 and the right extending piece 421 are both fixedly connected with a T-shaped sliding block 451, the inner wall of the movable cavity 452 is provided with a sliding groove at a position corresponding to the T-shaped sliding block 451, the sliding block 451 and the sliding groove are mutually matched and slidably connected, and the adjacent ends of the upper rack 412 and the lower rack 422 are arc-shaped structures and wrap the outer surface of the gear 49.

During operation, the sliding block 451 of the T-shaped structure is slidably connected to the sliding groove, so that the left extending piece 411 and the right extending piece 421 have guidance in the displacement process to prevent the error of the rack and the gear 49, and the adjacent ends of the upper rack 412 and the lower rack 422 are arc-shaped structures and wrapped on the outer surface of the gear 49 to prevent the gear 49 from rotating too much counterclockwise, which results in the separation of the three components and the failure of the three components.

The working principle is as follows:

the fixing mechanism 4 is added in the device, the threaded rod 48 is matched with the threaded cylinder 44, the pressing sheet 43 and the fixing sheet 481 are used for installing and operating the appropriate position on the surface of the operating platform 14, the fixing hole 15 is inserted, so that the corner of the metal plate 3 is fixed, the clockwise driving gear 49 is further driven by screwing the screw 46, the upper rack 412 and the lower rack 422 which are in meshing transmission with the threaded cylinder move oppositely, the left extending sheet 411 and the right extending sheet 421 stretch the left clamping plate 41 and the right clamping plate 42 to move oppositely, so that the corner of the metal plate 3 is further clamped and fixed, the operation mode of the device is simple, and compared with the fixing mode of the traditional threaded clamping piece, the device is not easy to loosen and fall off, and has excellent fixing effect; the clamping mechanism 5 is added in the device, so that the fixing mechanism 4 is matched with the fixing mechanism 4 on the basis of the fixing mechanism 4 to further clamp and fix the corners of the metal plate 3 and adhere the corner surfaces of the metal plate through the expansion of the air bag 52, slight shaking and collision of the metal plate 3 to the fixing mechanism 4 in the processing process are buffered, the metal plate is prevented from being in hard contact with the fixing mechanism 4, the abrasion degree of the metal plate 3 in the fixing process is reduced, after the processing is finished, metal powder generated by processing the surface of the metal plate 3 can be blown and cleaned through the air nozzle 51 by loosening the fixing mechanism 4, the probability that dust remains and adheres to the surface of the metal plate 3 is reduced, and the practicability of the device is further improved; through adding stop gear 6 and can further inject the left grip block 41 after adjusting and right grip block 42 position, it is not good to prevent that bolt 46 and nut 47 are not hard up to cause fixed effect in the operation process, and this stop gear 6 possesses automatic block and the function that resets simultaneously, makes it use repeatedly, satisfies the processing demand.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.