CN112453189B

CN112453189B - Automatic pay-off unhairing limit device that punches a hole

Info

Publication number: CN112453189B
Application number: CN202011201671.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Suzhou Zhengsheng Technology Co ltd
Current assignee: Suzhou Zhengsheng Technology Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2022-11-18
Anticipated expiration: 2040-11-02
Also published as: CN112453189A

Abstract

The invention relates to the technical field of punching equipment, and discloses an automatic feeding, punching and deburring device which comprises a mounting plate, wherein a fixed block and two support columns are welded on the top of the mounting plate respectively, a fixed mechanism is arranged on the top of the fixed block, a transmission mechanism is arranged between the two support columns, a sliding block is connected between the two support columns in a sliding manner, a feeding mechanism is arranged at the front part of the sliding block, a polishing mechanism is arranged on the top of the mounting plate, guide columns are welded on the inner walls of the support columns, reset springs are sleeved on the surfaces of the guide columns, a steel plate is arranged on the surface of the fixed mechanism, and through the matching operation of the transmission mechanism, the polishing mechanism and the feeding mechanism, various operations can be realized on one device, and automatic feeding can be realized, so that the application range of the device can be increased, multiple functions can be realized, multiple-process operation can be carried out on one device, the labor intensity of workers can be reduced, and the working efficiency can be improved.

Description

Automatic pay-off unhairing limit device that punches a hole

Technical Field

The invention relates to the technical field of punching equipment, in particular to an automatic feeding, punching and deburring device.

Background

In modern industrial production, a flat plate punching machine is taken as a key device for processing various flat plate holes, a novel forming technology is utilized to process the holes, the precision is high, the positioning is accurate, the production period is short, the traditional device is replaced, the application field of the punching machine is more and more extensive along with the development of high and new technologies, and the application field of the punching machine is expanded from the initial national defense field and the aerospace field to the fields of machinery, medical treatment and the like; the punching machines are classified into a flat punching machine, a circular pipe punching machine, a square pipe punching machine, a U-shaped steel punching machine, and the like according to the shape of the material to be processed.

The function of the punching device in the current market is relatively single, the punching device needs to be conveyed to other devices to carry out the next working procedure after punching, meanwhile, in the punching process, certain burrs are arranged at the periphery of a hole position, the subsequent polishing processing is needed, time is wasted greatly, the working efficiency is low, manual feeding is needed during feeding, the labor intensity of workers can be increased, even if an automatic feeding device is adopted, the punching device and the feeding device are also driven by independent driving devices, two driving devices are needed, resource waste is inevitably caused, and in addition, in the existing punching device, each punching machine can only adapt to plates of the same size, if the plates are too wide or too narrow, the punching machine needs to be replaced, a large cost burden is brought to enterprises, the plates are easy to rub against the punching machine in the moving process, the deformation of the two sides of the plates is caused, the feeding speed is easy to be influenced, and the final forming effect of the plates is influenced, and the automatic punching feeding and punching and removing device is provided to solve the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic feeding, punching and deburring device, which solves the problems that the punching equipment has single function, the working efficiency is low and automatic feeding and feeding cannot be realized.

(II) technical scheme

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

automatic pay-off unhairing limit device that punches a hole, including the mounting panel, fixed block and two support columns have been welded respectively to the top of mounting panel, and the fixed block is located between two support columns, the top of fixed block is provided with fixed establishment, two be provided with drive mechanism between the support column, two sliding connection has the slider between the support column, and the slider is located drive mechanism's below, the front portion of slider is provided with feed mechanism, the top of mounting panel is provided with grinding machanism, and grinding machanism is located the rear portion of support column, the inner wall welding of support column has the guide pillar, reset spring has been cup jointed on the surface of guide pillar, fixed establishment's surface is provided with the steel sheet.

Preferably, the two sides of the sliding block are welded with limiting blocks, the bottom of the sliding block is fixedly provided with a punch, the surface of the guide pillar is connected with the inner walls of the limiting blocks in a sliding mode, and the two ends of the reset spring are in contact with the bottom of the limiting blocks and the inner walls of the supporting columns respectively.

Preferably, fixed establishment is including splint, the quantity of splint is provided with two, and the welding has the shrink spring between two splint, the top welding of fixed block has the cushion, the inner wall swing joint of fixed block has the slide bar, the surface connection of slide bar has the backup pad, the inner wall of backup pad rotates and is connected with the pull rod, a plurality of fixed orifices has been seted up to the inside of pull rod, the inner wall sliding connection of fixed orifices has the bolt.

Preferably, the lower surface of splint and the inner wall sliding connection of fixed block, the surface of pull rod and bolt all with the inner wall sliding connection of fixed block, the inner wall of splint and the surface sliding connection of steel sheet.

Preferably, the feeding mechanism comprises a fixed plate, a connecting rod is welded on the right side of the fixed plate, a torsion spring is sleeved on the surface of the connecting rod, a rotating plate is rotatably connected on the surface of the connecting rod, a shaft sleeve is welded on the left side of the rotating plate, a baffle is welded on the front portion of the sliding block, and a fixing piece is connected on the inner wall of the sliding block in a threaded manner.

Preferably, the surface of the fixed plate is in sliding connection with the inner wall of the sliding block, two ends of the torsion spring are respectively clamped and fixed with the fixed plate and the rotating plate, the surface of the rotating plate is in contact with the surface of the baffle, and the right end of the fixing piece is in contact with the left side of the fixed plate.

Preferably, drive mechanism is including the motor, the output welding of motor has the pivot, the surperficial joint of pivot has two cams, the left end joint of pivot has double-deck belt pulley, the surface of double-deck belt pulley is connected through the surface transmission of belt and a belt pulley and No. two belt pulleys respectively, the welding of axle center department of a belt pulley has a bevel gear, the surface toothing of a bevel gear has No. two bevel gears, the axle center department of a belt pulley rotates through the connecting rod and is connected with the supporting shoe.

Preferably, bolted connection is passed through on the left side of motor on the right side of support column, the surface of pivot is rotated with the inner wall of support column and is connected, the surface of cam and the upper surface of slider contact each other, no. two bevel gear's bottom is provided with burnishing device.

Preferably, burnishing device is including the connecting plate, the quantity of connecting plate is provided with two, and the welding has two baffles between two connecting plates, the welding has the fixture block in the left side of connecting plate, the inner wall of fixture block rotates and is connected with the connecting axle, the equal joint in both ends of connecting axle has No. three belt pulleys, the surface of No. three belt pulleys is passed through the belt and is connected with the surface transmission of No. four belt pulleys, the axle center department of No. four belt pulleys has the carousel through the connecting rod joint.

Preferably, the bottom of the connecting plate is welded and fixed with the top of the mounting plate, the axis of the third belt pulley is welded and fixed with the axis of the second bevel gear, the surface of the rotary disc is in contact with the surface of the steel plate, and the top of the connecting plate is welded and fixed with the bottom of the supporting block.

Preferably, the grinding mechanism is including the frame, the inner wall of frame rotates respectively to be connected with gear post and two and changes the cover, and the gear post is located two and changes between the cover, the inner wall sliding connection who changes the cover has the transmission shaft, supporting spring has been cup jointed on the surface of transmission shaft, the left end welding of transmission shaft has the polishing dish, the skin weld of polishing dish has a plurality of teeth.

Preferably, the bottom of frame and the top welded fastening of mounting panel, supporting spring's both ends respectively with the right-hand member of the dish of polishing and the inner wall of frame in contact with each other, the surface of tooth and the surface intermeshing of gear post, the surface of the dish of polishing and the both sides of steel sheet in contact with each other, the surface of transmission shaft is fixed with the inner wall joint of No. two belt pulleys.

(III) advantageous effects

Compared with the prior art, the invention provides an automatic feeding, punching and deburring device which has the following beneficial effects:

1. this autoloading punching device through drive mechanism, grinding machanism, feed mechanism's cooperation function, can realize various operations on a device to can increase the application scope of device, have multiple functions, can carry out the multiple operation on a device, practicality greatly increased, work efficiency can promote.

2. This autoloading punching device can realize the auto-feed of steel sheet through feed mechanism to need not the workman and manually promote the steel sheet and feed, can reduce the error of feeding, reduce workman's intensity of labour, and feed mechanism and the mechanism of punching a hole adopt same drive arrangement, need not additionally to feed and set up drive arrangement alone again for the mechanism, save the cost, reduce the energy consumption.

3. This autoloading punching device can realize processing the steel sheet of different width through fixed establishment to make the application scope greatly increased of device, and use with feed mechanism cooperation, can also change the stroke of feeding at every turn, practicality greatly increased is favorable to using widely.

4. This autoloading punching device is earlier through grinding mechanism with the both sides deburring of steel sheet, prevents that it from getting into in the fixed establishment by the card owner, leads to unable continuation to feed, and burnishing device can polish the hole after dashing, gets rid of hole limit burr to the quality that can greatly increased product reduces the production of defective work.

5. This autoloading punching device can drive mechanism, grinding machanism, feed mechanism simultaneously through a motor and operate, can reduce the quantity of placing of motor to reduce with low costs and drop into, can also reduce occuping of space, make between each mechanism synchronous operation, work efficiency can promote.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic feeding, punching and deburring device according to the present invention;

FIG. 2 is a schematic view of a part of the structure of the automatic feeding, punching and deburring device of the present invention;

FIG. 3 is a schematic view of a fixing mechanism of the automatic feeding, punching and deburring device of the present invention;

FIG. 4 is a schematic view of a feeding mechanism of the automatic feeding, punching and deburring device of the present invention;

FIG. 5 is a schematic view of a driving mechanism of an automatic feeding, punching and deburring device according to the present invention;

FIG. 6 is a schematic view of a polishing device of an automatic feeding, punching and deburring device according to the present invention;

fig. 7 is a schematic view of a polishing mechanism of an automatic feeding, punching and deburring device according to the present invention.

In the figure: 1. mounting a plate; 2. a fixed block; 3. a fixing mechanism; 31. a splint; 32. a retraction spring; 33. cushion blocks; 34. a slide bar; 35. a support plate; 36. a pull rod; 37. a fixing hole; 38. a bolt; 4. a support pillar; 5. a feed mechanism; 51. a fixing plate; 52. a connecting rod; 53. A torsion spring; 54. a shaft sleeve; 55. a rotating plate; 56. a baffle plate; 57. a fixing member; 6. a transmission mechanism; 61. a motor; 62. a rotating shaft; 63. a cam; 64. a double-layer belt pulley; 65. a first belt pulley; 66. a first bevel gear; 67. a support block; 68. a second bevel gear; 69. a polishing device; 691. a connecting plate; 692. a clamping block; 693. a connecting shaft; 694. a third belt pulley; 695. a fourth belt pulley; 696. a turntable; 697. a partition plate; 611. a second belt pulley; 7. A polishing mechanism; 71. a frame; 72. rotating the sleeve; 73. a drive shaft; 74. a support spring; 75. Grinding the disc; 76. teeth; 77. a gear post; 8. a slider; 9. a guide post; 10. a return spring; 11. a steel plate; 12. a limiting block; 13. and (4) punching.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

Automatic pay-off unhairing limit device that punches a hole, as shown in fig. 1-4, including mounting panel 1, fixed block 2 and two support columns 4 have been welded respectively to the top of mounting panel 1, and fixed block 2 is located between two support columns 4, the top of fixed block 2 is provided with fixed establishment 3, be provided with drive mechanism 6 between two support columns 4, sliding connection has slider 8 between two support columns 4, and slider 8 is located drive mechanism 6's below, slider 8's front portion is provided with feed mechanism 5, the top of mounting panel 1 is provided with grinding machanism 7, and grinding machanism 7 is located the rear portion of support column 4, the inner wall welding of support column 4 has guide pillar 9, reset spring 10 has been cup jointed on the surface of guide pillar 9, the surface of fixed establishment 3 is provided with steel sheet 11.

In this embodiment, stopper 12 has all been welded to slider 8's both sides, slider 8's bottom fixed mounting has drift 13, the surface of guide pillar 9 and stopper 12's inner wall sliding connection, reset spring 10's both ends respectively with stopper 12's bottom and support column 4's inner wall contact each other, guide pillar 9 can lead to stopper 12 and spacing, prevent that it when sliding, the card is in support column 4, and then lead to the device can't continue the function, practicality greatly reduced, and reset spring 10 can reset slider 8 after falling down, convenient punching a hole next time, make the device can punch a hole in succession, work efficiency obtains promoting.

Further, fixed establishment 3 is including splint 31, splint 31's quantity is provided with two, and the welding has contraction spring 32 between two splint 31, the top welding of fixed block 2 has cushion 33, the inner wall swing joint of fixed block 2 has slide bar 34, the surface connection of slide bar 34 has backup pad 35, the inner wall of backup pad 35 rotates and is connected with pull rod 36, a plurality of fixed orifices 37 has been seted up to pull rod 36's inside, the inner wall sliding connection of fixed orifices 37 has bolt 38, can realize processing the steel sheet 11 of different widths through two splint 31 in fixed establishment 3, thereby make the application scope greatly increased of device, more do benefit to and use widely.

Furthermore, the lower surface of splint 31 and the inner wall sliding connection of fixed block 2, the surface of pull rod 36 and bolt 38 all with the inner wall sliding connection of fixed block 2, the inner wall of splint 31 and the surface sliding connection of steel sheet 11, can make backup pad 35 rotatory through pulling pull rod 36, make its contained angle with mounting panel 1 diminish, and then can change the stroke of feeding, the practicality can further promote, can adjust the stroke of feeding at any time as required, can be suitable for the interval of punching a hole of different models.

In addition, the feeding mechanism 5 comprises a fixing plate 51, a connecting rod 52 is welded on the right side of the fixing plate 51, a torsion spring 53 is sleeved on the surface of the connecting rod 52, a rotating plate 55 is rotatably connected on the surface of the connecting rod 52, a shaft sleeve 54 is welded on the left side of the rotating plate 55, a baffle 56 is welded on the front portion of the sliding block 8, a fixing piece 57 is in threaded connection with the inner wall of the sliding block 8, automatic feeding of the steel plate 11 can be achieved through the feeding mechanism 5, accordingly, a worker does not need to manually push the steel plate 11 to feed, feeding errors can be reduced, and labor intensity of the worker is reduced.

Besides, the surface of the fixed plate 51 is connected with the inner wall of the slider 8 in a sliding manner, two ends of the torsion spring 53 are respectively fixed with the fixed plate 51 and the rotating plate 55 in a clamping manner, the surface of the rotating plate 55 is in contact with the surface of the baffle 56, the right end of the fixing member 57 is in contact with the left side of the fixed plate 51, the torsion spring 53 can reset the rotating plate 55 after rotation, which facilitates the next feeding of the steel plate 11, the baffle 56 can limit the rotating plate 55, so that the rotating plate 55 can be always positioned right above the punched hole, and can not enter the punched hole when being prevented from moving downwards, and further the steel plate 11 can not be driven to feed, so that the feeding mechanism 5 can not work normally, and the practicability is limited.

Example 2

As shown in fig. 5-7, the transmission mechanism 6 includes a motor 61, a rotating shaft 62 is welded at an output end of the motor 61, two cams 63 are clamped on a surface of the rotating shaft 62, a double-layer belt pulley 64 is clamped at a left end of the rotating shaft 62, a surface of the double-layer belt pulley 64 is in transmission connection with surfaces of a first belt pulley 65 and a second belt pulley 611 through belts respectively, a first bevel gear 66 is welded at an axis of the first belt pulley 65, a second bevel gear 68 is meshed at a surface of the first bevel gear 66, and a supporting block 67 is rotatably connected at an axis of the first belt pulley 65 through a connecting rod.

It is worth noting that bolted connection is passed through on the left side of motor 61 on the right side of support column 4, the surface of pivot 62 rotates with the inner wall of support column 4 to be connected, the surface of cam 63 contacts with the upper surface of slider 8 each other, second bevel gear 68's bottom is provided with burnishing device 69, drive slider 8 through two cams 63 and move down and punch a hole, if only set up a cam 63, may lead to the atress at both ends uneven, cause slider 8 to take place the skew, lead to its card in support column 4, make the device can't continue the function, therefore, the practicality is lower, be unfavorable for using widely.

It is worth to be noted that the polishing device 69 includes the connecting plate 691, the number of the connecting plates 691 is two, two partition plates 697 are welded between the two connecting plates 691, a fixture block 692 is welded on the left side of the connecting plate 691, the inner wall of the fixture block 692 is rotatably connected with a connecting shaft 693, two ends of the connecting shaft 693 are respectively connected with a third belt pulley 694 in a clamping manner, the surface of the third belt pulley 694 is in transmission connection with the surface of a fourth belt pulley 695 through a belt, the axial center of the fourth belt pulley 695 is connected with a rotating disc 696 in a clamping manner through a connecting rod, and the punched hole can be polished through the two rotating discs 696 in the polishing device 69 to remove burrs on the edge of the hole, so that the quality of a product can be greatly increased, and the generation of unqualified products can be reduced.

It is worth mentioning that, the bottom of connecting plate 691 and the top welded fastening of mounting panel 1, the axle center department of No. three belt pulleys 694 and the axle center department welded fastening of No. two bevel gear 68, the surface of carousel 696 and the surface of steel sheet 11 contact each other, the top of connecting plate 691 and the bottom welded fastening of supporting shoe 67, the surface joint of carousel 696 has the piece of polishing, can conveniently polish the piece wearing and tearing consumption back, can be quick dismantle the change to it, reduce and change the required time of the piece of polishing, increase work efficiency that can be relative, the practicality can promote.

Further, grinding machanism 7 is including frame 71, frame 71's inner wall rotates respectively and is connected with gear post 77 and two commentaries on classics cover 72, and gear post 77 is located two and changes between the cover 72, the inner wall sliding connection who changes cover 72 has transmission shaft 73, supporting spring 74 has been cup jointed on the surface of transmission shaft 73, the left end welding of transmission shaft 73 has polishing dish 75, the skin weld of polishing dish 75 has a plurality of teeth 76, two polishing dishes 75 in grinding machanism 7 can be with the both sides deburring of steel sheet 11, prevent that it from getting into fixed establishment 3 in by the card owner, lead to the device can't continue to feed, and then make practicality greatly reduced.

Furthermore, the bottom of the frame 71 is welded and fixed with the top of the mounting plate 1, two ends of a supporting spring 74 are respectively contacted with the right end of the polishing disc 75 and the inner wall of the frame 71, the surface of the tooth 76 is meshed with the surface of the gear column 77, the surface of the polishing disc 75 is contacted with two sides of the steel plate 11, the surface of the transmission shaft 73 is clamped and fixed with the inner wall of the second belt pulley 611, the transmission shaft 73 can rotate in the frame 71 through the rotating sleeve 72, the supporting spring 74 can tightly support the polishing disc 75 on two sides of the steel plate 11, the steel plate 11 with different widths can be suitable for the steel plate 11 without the width, and the efficiency of polishing and removing burrs can be increased.

When the automatic feeding, punching and deburring device is used, the two clamping plates 31 are pulled outwards to enable the steel plate 11 to penetrate through the clamping plates 31, the two clamping plates 31 are pulled by the contraction springs 32 to limit the position of the steel plate 11, the motor 61 drives the rotating shaft 62 to rotate, the rotating shaft 62 drives the double-layer belt pulley 64 to rotate, the double-layer belt pulley 64 drives the second belt pulley 611 to rotate, the second belt pulley 611 drives the transmission shaft 73 to rotate, the transmission shaft 73 drives the left polishing disc 75 to rotate, the polishing disc 75 drives the gear post 77 to rotate through the teeth 76, the gear post 77 drives the right polishing disc 75 to rotate through the teeth 76, the two polishing discs 75 can be tightly attached to two sides of the steel plate 11 to polish under the action of the supporting springs 74, so that burrs can be removed, the rotating shaft 62 drives the two cams 63 to rotate, the cams 63 drive the sliding blocks 8 to move downwards, and the sliding blocks 8 drive the fixing plates 51 to move downwards, the fixing plate 51 drives the connecting rod 52 to move downwards, the connecting rod 52 drives the rotating plate 55 to move downwards, the rotating plate 55 penetrates through a punched hole on the steel plate 11 and contacts with the supporting plate 35, at this time, the rotating plate 55 continuously moves downwards, the steel plate 11 is pushed and fed forwards by the rotating plate 55 under the action of the supporting plate 35, when the feeding is finished, the slider 8 drives the punch 13 to just punch the steel plate 11, the feeding and punching can be automatically carried out repeatedly, manual feeding of workers is not needed, the labor intensity of workers is reduced, after the bolt 38 is drawn out, the pull rod 36 can be pulled, the pull rod 36 drives the supporting plate 35 to move, at this time, the included angle between the supporting plate 35 and the mounting plate 1 is changed, the fixing piece 57 is twisted down, the fixing plate 51 moves a certain distance towards the outside of the slider 8 or towards the inside of the slider 8, or the fixing plate 51 moves a certain distance towards the upper part of the slider 8 or towards the lower part of the slider 8, at this time, the moving distance of the rotating plate 55 on the supporting plate 35 is changed, so that the feeding stroke of the steel plate 11 can be changed, and further the feeding stroke of each time can be freely adjusted, and the practicability is greatly increased, the double-layer belt pulley 64 drives the first belt pulley 65 to rotate, the first belt pulley 65 drives the first bevel gear 66 to rotate, the first bevel gear 66 drives the second bevel gear 68 to rotate, the second bevel gear 68 drives the third belt pulley 694 to rotate, the third belt pulley 694 drives the fourth belt pulley 695 to rotate, the fourth belt pulley 695 drives the turntable 696 to rotate, and the third belt pulley 694 can be connected with the connecting shaft 693. The turnplate 696 below is driven to rotate, at the moment, the two turnplates 696 can polish and polish the middle steel plate 11, and burrs left by punching are removed, so that the quality of products is further improved, and the practicability is greatly increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides an autoloading unhairing limit device that punches a hole, includes mounting panel (1), its characterized in that: the top of the mounting plate (1) is respectively welded with a fixing block (2) and two supporting columns (4), the fixing block (2) is located between the two supporting columns (4), the top of the fixing block (2) is provided with a fixing mechanism (3), a transmission mechanism (6) is arranged between the two supporting columns (4), a sliding block (8) is connected between the two supporting columns (4) in a sliding mode, the sliding block (8) is located below the transmission mechanism (6), the front portion of the sliding block (8) is provided with a feeding mechanism (5), the top of the mounting plate (1) is provided with a polishing mechanism (7), the polishing mechanism (7) is located at the rear portion of each supporting column (4), the inner wall of each supporting column (4) is welded with a guide column (9), the surface of each guide column (9) is sleeved with a return spring (10), and the surface of the fixing mechanism (3) is provided with a steel plate (11);

the feeding mechanism (5) comprises a fixed plate (51), a connecting rod (52) is welded on the right side of the fixed plate (51), a torsion spring (53) is sleeved on the surface of the connecting rod (52), a rotating plate (55) is rotatably connected on the surface of the connecting rod (52), a shaft sleeve (54) is welded on the left side of the rotating plate (55), a baffle (56) is welded on the front part of the sliding block (8), and a fixing piece (57) is connected on the inner wall of the sliding block (8) in a threaded manner;

the surface of the fixed plate (51) is in sliding connection with the inner wall of the sliding block (8), two ends of the torsion spring (53) are respectively clamped and fixed with the fixed plate (51) and the rotating plate (55), the surface of the rotating plate (55) is in contact with the surface of the baffle plate (56), and the right end of the fixing piece (57) is in contact with the left side of the fixed plate (51);

the polishing mechanism (7) comprises a frame (71), the inner wall of the frame (71) is respectively and rotatably connected with a gear column (77) and two rotating sleeves (72), the gear column (77) is positioned between the two rotating sleeves (72), the inner wall of each rotating sleeve (72) is slidably connected with a transmission shaft (73), a support spring (74) is sleeved on the surface of each transmission shaft (73), a polishing disc (75) is welded at the left end of each transmission shaft (73), and a plurality of teeth (76) are welded on the surface of each polishing disc (75);

the bottom of the frame (71) is fixedly welded with the top of the mounting plate (1), two ends of the supporting spring (74) are respectively contacted with one end of the polishing disc (75) and the inner wall of the frame (71), the surface of the tooth (76) is meshed with the surface of the gear column (77), the surface of the polishing disc (75) is contacted with two sides of the steel plate (11), and the surface of the transmission shaft (73) is fixedly clamped with the inner wall of the second belt pulley (611);

the fixing mechanism (3) comprises two clamping plates (31), a contraction spring (32) is welded between the two clamping plates (31), a cushion block (33) is welded at the top of the fixing block (2), a sliding rod (34) is movably connected to the inner wall of the fixing block (2), a supporting plate (35) is connected to the surface of the sliding rod (34), a pull rod (36) is rotatably connected to the inner wall of the supporting plate (35), a plurality of fixing holes (37) are formed in the pull rod (36), and a bolt (38) is slidably connected to the inner wall of each fixing hole (37);

limiting blocks (12) are welded on two sides of the sliding block (8), a punch (13) is fixedly mounted at the bottom of the sliding block (8), the surface of the guide pillar (9) is in sliding connection with the inner walls of the limiting blocks (12), and two ends of the reset spring (10) are in mutual contact with the bottom of the limiting blocks (12) and the inner walls of the supporting columns (4) respectively;

the lower surface of the clamping plate (31) is in sliding connection with the inner wall of the fixing block (2), the surfaces of the pull rod (36) and the bolt (38) are in sliding connection with the inner wall of the fixing block (2), and the inner wall of the clamping plate (31) is in sliding connection with the surface of the steel plate (11);

the transmission mechanism (6) comprises a motor (61), a rotating shaft (62) is welded at the output end of the motor (61), two cams (63) are clamped on the surface of the rotating shaft (62), a double-layer belt pulley (64) is clamped at the left end of the rotating shaft (62), the surface of the double-layer belt pulley (64) is in transmission connection with the surfaces of a first belt pulley (65) and a second belt pulley (611) through belts respectively, a first bevel gear (66) is welded at the axis of the first belt pulley (65), a second bevel gear (68) is meshed with the surface of the first bevel gear (66), and a supporting block (67) is rotatably connected at the axis of the first belt pulley (65) through a connecting rod;

the left side of the motor (61) is connected to the right side of the supporting column (4) through a bolt, the surface of the rotating shaft (62) is rotatably connected with the inner wall of the supporting column (4), the surface of the cam (63) is in contact with the upper surface of the sliding block (8), and a polishing device (69) is arranged at the bottom of the second bevel gear (68);

the polishing device (69) comprises connecting plates (691), two connecting plates (691) are arranged, two partition plates (697) are welded between the two connecting plates (691), a clamping block (692) is welded on the left side of the connecting plates (691), the inner wall of the clamping block (692) is rotatably connected with a connecting shaft (693), two ends of the connecting shaft (693) are respectively clamped with a third belt pulley (694), the surface of the third belt pulley (694) is in transmission connection with the surface of a fourth belt pulley (695) through a belt, and the axis of the fourth belt pulley (695) is clamped with a turntable (696) through a connecting rod;

the bottom of connecting plate (691) and the top welded fastening of mounting panel (1), axle center department of No. three belt pulley (694) and the axle center department welded fastening of No. two bevel gear (68), the surface of carousel (696) and the surface of steel sheet (11) contact each other, the top of connecting plate (691) and the bottom welded fastening of supporting shoe (67).