CN113634663B

CN113634663B - Automatic punching machine and process for hole arrangement of edge of metal plate

Info

Publication number: CN113634663B
Application number: CN202111184238.0A
Authority: CN
Inventors: 沈琼彬
Original assignee: Xuzhou Zhuoyue Precision Technology Co ltd
Current assignee: Xuzhou Zhuoyue Precision Technology Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2021-12-17
Anticipated expiration: 2041-10-12
Also published as: CN113634663A

Abstract

The invention relates to the technical field of metal plate processing, in particular to an automatic punching machine for a row hole at the edge of a metal plate and a row hole punching process. The automatic punching machine can solve the problems that cracks and even fractures are easy to occur at the edges during punching, damage is caused to a metal plate, the adaptability of the punching machine is low due to the fact that most traditional automatic punching machines are used for processing the metal plate with specific length and width, burrs can occur on the inner wall of a hole after one-time punching, the quality of the punched hole is affected, and the like. The invention designs a machine capable of punching at the edge of a metal plate, prevents the occurrence of cracks at the edge during blanking, can clamp and punch the edges of the metal plates with different specifications, and can edge the inner wall of a hole.

Description

Automatic punching machine and process for hole arrangement of edge of metal plate

Technical Field

The invention relates to the technical field of metal plate processing, in particular to an automatic punching machine and a punching process for a row hole at the edge of a metal plate.

Background

The metal plate is a decorative plate which is made of metal materials serving as base materials and processed through different processes (such as spraying, paint baking, transfer printing and the like) on the surface, the metal plate has the characteristics of easiness in processing, good forming, high fire resistance limit, rich colors, various forms, strong plasticity and the like, generally comprises various metal plates such as aluminum plates, steel plates, stainless steel plates, copper plates and the like, and holes are required to be punched at the edge of the metal plate in order to meet different working conditions.

At present, when punching and making holes on the edge of a metal plate, the following defects generally exist: 1. when the traditional automatic blanking method is used for blanking the edge of the metal plate, the edge is thin and close to the side wall, so that cracks and even fractures are easily generated at the edge during blanking, and the metal plate is damaged; 2. traditional automatic blanking machine is mostly processed to the metal sheet of specific length and width, causes blanking machine's adaptability lower, and the burr probably can appear in disposable back hole inner wall that punches a hole, influences the quality in the hole of punching out, still may bring the potential safety hazard for the staff.

Disclosure of Invention

The technical scheme is as follows: in order to achieve the purpose, the invention specifically adopts the following technical scheme that the automatic punching machine for the hole arrangement at the edge of the metal plate comprises an installation bottom plate, placing rods and a punching device, wherein the placing rods are uniformly fixed on the lower end surface of the installation bottom plate close to four corners, and the punching device is arranged on the upper end surface of the installation bottom plate.

Blanking device include spacing slide rail, the carriage, the discharge gate, fixture, the mounting bracket, the pneumatic cylinder, blanking mechanism and support bracket, bilateral symmetry is fixed with spacing slide rail around the mounting plate up end, the slip is provided with bilateral symmetry's carriage on the spacing slide rail, a plurality of discharge gates have evenly been seted up to the upper end of carriage, be provided with fixture on the carriage, the rear end of carriage even has the mounting bracket, there is the pneumatic cylinder upper end middle part of mounting bracket through the pedestal mounting, the mounting bracket comprises the L template of fixing at the carriage rear end and the horizontal plate of fixing at L template top, the ejecting end of pneumatic cylinder even has blanking mechanism, mounting plate's upper end mid-mounting has support bracket.

Blanking mechanism include mounting panel, slide shaft, preformer, clearing hole, compression spring, blanking branch chain and edging branch chain, even have the mounting panel on the ejecting end of pneumatic cylinder, the upper end of mounting panel slides and is provided with bilateral symmetry's slide shaft, the downside of slide shaft slides and runs through the mounting panel, the lower extreme of slide shaft even has the preformer, even there is compression spring between preformer and the mounting panel, the horizontal plate downside of mounting panel evenly is provided with a plurality of blanking branch chains, is provided with the edging branch chain on the blanking branch chain.

Preferably, the blanking branch chain include the commentaries on classics board, a blanking section of thick bamboo, the helicla flute, the gag lever post, the spout, drive the pole, dog and traveller, the lower extreme of mounting panel is rotated and is installed the commentaries on classics board, the lower terminal surface of commentaries on classics board even has a blanking section of thick bamboo, the helicla flute has been seted up on the blanking section of thick bamboo inner wall, the horizontal plate downside of mounting bracket is fixed with the gag lever post, the downside of gag lever post slides and runs through in mounting panel and commentaries on classics board, the spout has been seted up in the gag lever post, it is provided with the drive pole to slide in the spout, the dog is installed to the downside of spout inner wall, the lower extreme of drive pole is provided with the traveller, the end slip of traveller sets up in the helicla flute.

Preferably, the edging branch chain include recess, trapezoidal edging piece and pressure spring, the left and right sides symmetry of blanking section of thick bamboo outer wall has seted up the recess, slidable mounting has trapezoidal edging piece in the recess, trapezoidal edging piece is through the pressure spring and the groove connection of even setting.

Preferably, the outer wall of the output end of the hydraulic cylinder is provided with an auxiliary connecting frame, the lower end of the auxiliary connecting frame is arranged at the upper end of the mounting plate, and the limiting rod in contact with the auxiliary connecting frame penetrates through the auxiliary connecting frame in a sliding manner.

Preferably, the discharge hole and the through hole have the same diameter and are positioned on the same central line.

Preferably, fixture include the fixed plate, the slide bar, the grip block, the centre gripping spring, the connecting block, two-way lead screw and rocker, one side that the upper end of carriage was kept away from and is held the bracket is fixed with the fixed plate, both ends symmetry slidable mounting has the slide bar around the fixed plate lateral wall is close to, the one end that the slide bar is close to and holds the bracket even has the grip block, even there is the centre gripping spring between the one end that the grip block was kept away from to the slide bar and the fixed plate, the lower extreme mid-mounting of carriage has the connecting block, hold the downside of bracket and rotate and install two-way lead screw, two-way lead screw's both ends threaded connection is on the connecting block about, two-way lead screw's right-hand member even has the rocker.

Preferably, a plurality of clamping grooves are uniformly formed in the upper end face of the supporting bracket, and a baffle is clamped in one clamping groove.

In addition, the invention also provides a blanking process of the automatic punching machine for the hole arrangement of the edge of the metal plate, which comprises the following steps: s1, placing the plate: the shutter is withdrawn and inserted into the catching groove at a proper position according to the size of the metal plate, and the metal plate is placed on the support bracket with its rear end in contact with the shutter.

S2, clamping the plate: the bidirectional screw rod is rotated by manually rotating the rocker, so that the sliding frames on two sides move in opposite directions, and the metal plate is positioned and clamped by the clamping plate.

S3, blanking and arranging holes: the hydraulic cylinder drives the blanking mechanism to move downwards, so that the blanking mechanism is in contact with the edges of the left side and the right side of the metal plate and punches and edge-grinds the metal plate.

S4, collecting finished products: and taking out the metal plate after S3 is finished, rotating the metal plate by an angle of 90 degrees, punching and edging the edges of the other two side edges of the metal plate through S1-S3 again, and taking down and collecting the metal plate after the two edges are finished.

(II) beneficial effect: 1. the invention designs a machine capable of punching at the edge of a metal plate, prevents the metal plate from cracking easily because the edge is thin and is close to the side wall during punching, can clamp and punch the edges of the metal plates with different specifications, and can edge grind the inner wall of a hole after punching to improve the quality of the hole and the metal plate.

2. According to the invention, the prepressing plate is used for compacting the edge of the clamped metal plate, and then the metal plate in the compacted part is punched, so that the strength of the metal plate during processing is ensured, and the bending and breaking of the metal plate are avoided.

3. According to the invention, the position of the clamping plate can be adjusted by manually rotating the rocker, so that the clamping plate moves in opposite directions and contacts with the metal plate to limit and clamp the metal plate, the metal plate moves to a proper station, the punched holes are ensured to be arranged neatly, the inner walls of the holes are subjected to close-type edge grinding through the edge grinding branched chain, and potential safety hazards possibly caused by rough edges are eliminated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention.

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

Fig. 3 is a sectional view taken along line a-a of fig. 2 in accordance with the present invention.

Fig. 4 is a sectional view taken along line B-B of fig. 2 in accordance with the present invention.

Fig. 5 is an enlarged view of a portion of the invention at X of fig. 4.

Fig. 6 is a partial enlarged view of the invention at Y of fig. 4.

In the figure: 1. mounting a bottom plate; 2. placing a rod; 3. a blanking device; 31. a limiting slide rail; 32. a carriage; 33. a discharge port; 34. a clamping mechanism; 341. a fixing plate; 342. a slide bar; 343. a clamping plate; 344. a clamping spring; 345. connecting blocks; 346. a bidirectional lead screw; 347. a rocker; 35. a mounting frame; 36. a hydraulic cylinder; 361. an auxiliary connecting frame; 37. a blanking mechanism; 371. mounting a plate; 372. a slide shaft; 373. pre-pressing a plate; 374. through the hole; 375. a compression spring; 376. blanking the branched chain; 3761. rotating the plate; 3762. blanking the cylinder; 3763. a helical groove; 3764. a limiting rod; 3765. a chute; 3766. driving the rod; 3767. a stopper; 3768. a traveler; 377. edging the branched chain; 3771. a groove; 3772. trapezoidal edge grinding blocks; 3773. a compression spring; 38. a support bracket; 381. a card slot; 382. and a baffle plate.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1, 3 and 4, the automatic punching machine for the edge row holes of the metal plate comprises an installation bottom plate 1, placing rods 2 and a punching device 3, wherein the placing rods 2 are uniformly fixed on the lower end face of the installation bottom plate 1 close to four corners, and the punching device 3 is arranged on the upper end face of the installation bottom plate 1.

Referring to fig. 1, 2, 3 and 4, the blanking device 3 includes a limiting slide rail 31, a sliding frame 32, a discharge port 33, a clamping mechanism 34, a mounting frame 35, a hydraulic cylinder 36, a blanking mechanism 37 and a support bracket 38, the limiting slide rail 31 is symmetrically fixed on the front side and the rear side of the upper end surface of the mounting base plate 1, the limiting slide rail 31 is provided with the sliding frame 32 which is bilaterally symmetric, the upper end of the sliding frame 32 is uniformly provided with a plurality of discharge ports 33, the sliding frame 32 is provided with the clamping mechanism 34, the rear end of the sliding frame 32 is connected with the mounting frame 35, the middle part of the upper end of the mounting frame 35 is provided with the hydraulic cylinder 36 through a base, the mounting frame 35 is composed of an L-shaped plate fixed on the rear end of the sliding frame 32 and a horizontal plate fixed on the top of the L-shaped plate, the ejection end of the hydraulic cylinder 36 is connected with the blanking mechanism 37, and the middle part of the upper end of the mounting base plate 1 is provided with the support bracket 38; the upper end surface of the supporting bracket 38 is uniformly provided with a plurality of slots 381, wherein a baffle 382 is clamped in one slot 381, when metal plates with different specifications need to be processed, the baffle 382 can be pulled out and inserted into a new slot 381, and in operation, a metal plate is placed on the upper end of the support bracket 38, the position of the metal plate is limited and clamped by the clamping mechanism 34, during the clamping process, the sliding frames 32 slide on the limit sliding rails 31 in opposite directions, and after the metal plate is clamped at the edge and moves to the accurate working position, the blanking mechanism 37 is pushed by the hydraulic cylinder 36 to move downward to blank the edges of the metal plate, and after blanking, taking out the metal plate, rotating the metal plate by 90 degrees, then putting the metal plate on the upper end of the supporting bracket 38 again, clamping the metal plate by the clamping mechanism 34, blanking by the blanking mechanism 37, and taking down and collecting the metal plate after blanking.

Referring to fig. 1 and 3, the clamping mechanism 34 includes a fixed plate 341, a sliding rod 342, a clamping plate 343, a clamping spring 344, a connecting block 345, a bidirectional screw 346 and a rocker 347, the fixed plate 341 is fixed on one side of the upper end of the sliding frame 32 away from the support bracket 38, the sliding rod 342 is symmetrically and slidably mounted on the side wall of the fixed plate 341 near the front and rear ends, the clamping plate 343 is connected to one end of the sliding rod 342 near the support bracket 38, the clamping spring 344 is connected between one end of the sliding rod 342 away from the clamping plate 343 and the fixed plate 341, the connecting block 345 is mounted in the middle of the lower end of the sliding frame 32, the bidirectional screw 346 is rotatably mounted on the lower side of the support bracket 38, the left and right ends of the bidirectional screw 346 are threadedly connected to the connecting block 345, the rocker 347 is connected to the right end of the bidirectional screw 346, during specific operation, the bidirectional screw 346 rotates the bidirectional screw 346 by manually rotating the rocker 347, the connecting block 345 moves oppositely and drives the sliding frame 32 to slide oppositely, the clamping plate 343 contacts with both sides of the metal plate first, and the metal plate pushes the sliding rod 342 to move in a direction away from the metal plate and simultaneously stretches the clamping spring 344, and the both sides of the metal plate are clamped and limited by the clamping plate 343 under the elastic action of the clamping spring 344.

Referring to fig. 4 and 5, the blanking mechanism 37 includes an installation plate 371, a sliding shaft 372, a pre-pressing plate 373, a through hole 374, a compression spring 375, a blanking branch chain 376 and an edging branch chain 377, the ejection end of the hydraulic cylinder 36 is connected with the installation plate 371, an auxiliary connecting frame 361 is installed on the outer wall of the output end of the hydraulic cylinder 36, the lower end of the auxiliary connecting frame 361 is installed at the upper end of the installation plate 371, the connection between the hydraulic cylinder 36 and the installation plate 371 is enhanced through the auxiliary connecting frame 361, the upper end of the installation frame 35 is slidably provided with the sliding shaft 372 which is bilaterally symmetrical, the lower side of the sliding shaft 372 slidably penetrates through the installation plate 371, the lower end of the sliding shaft 372 is connected with the pre-pressing plate 373, the compression spring 375 is connected between the pre-pressing plate 373 and the installation plate 371, the lower side of the horizontal plate of the installation frame 35 is uniformly provided with a plurality of blanking branch chains 376, and the edging branch chain 377 is arranged on the blanking branch chain 376; the discharge hole 33 and the through hole 374 have the same diameter and are positioned on the same central line, so that the blanking cylinder 3762 can smoothly enter the discharge hole 33 to eject waste materials after passing through the through hole 374, and during specific work, after the clamping is completed, the hydraulic cylinder 36 pushes the mounting plate 371 to move downwards, the mounting plate 371 drives the compression spring 375 to move downwards, so that the pre-pressing plate 373 and the sliding shaft 372 move downwards along with the downward movement and contact with the metal plate first, the pre-pressing plate 373 stops moving after contacting with the metal plate, the hydraulic cylinder 36 at the moment continuously pushes the mounting plate 371 to move downwards, so that the mounting plate 371 applies pressure to the pre-pressing plate 373 through the compression spring 375, the pre-pressing plate 373 extrudes the edge of the metal plate, the mounting plate 371 moves downwards continuously, so that the blanking branched chain 376 penetrates through the through hole 374 to punch the metal plate, the edge grinding treatment is carried out on the inner wall of the hole through the edge grinding branched chain 377, and the punched waste material falls out of the discharge hole 33.

Referring to fig. 5 and 6, the blanking branched chain 376 includes a rotating plate 3761, a blanking cylinder 3762, a spiral groove 3763, a limiting rod 3764, a sliding groove 3765, a driving rod 3766, a stopper 3767 and a sliding column 3768, the lower end of the mounting plate 371 is rotatably installed with the rotating plate 3761, the lower end face of the rotating plate 3761 is connected with the blanking cylinder 3762, the inner wall of the blanking cylinder 3762 is provided with the spiral groove 3763, the lower side of the horizontal plate of the mounting frame 35 is fixed with the limiting rod 3764, the lower side of the limiting rod 3764 is slidably penetrated through the mounting plate 371 and the rotating plate 3761, the limiting rod 3764 contacting with the auxiliary connecting frame 361 slidably penetrates through the auxiliary connecting frame 361, the sliding groove 3765 is formed in the limiting rod 3764, the driving rod 3766 is slidably arranged in the sliding groove 3765, the stopper 3767 is installed on the lower side of the inner wall of the sliding groove 3765, the lower end of the driving rod 3766 is provided with the sliding column 3768, and the tail end of the sliding column 3768 is slidably arranged in the spiral groove 3763. During specific work, the mounting plate 371 is pushed to move downwards through the hydraulic cylinder 36, the blanking cylinder 3762 moves downwards along with the mounting plate 371 and penetrates through the through hole 374 to punch holes in the edge of the metal plate, after punching is completed, the edge grinding branched chain 377 is in contact with the inner wall of the hole, the driving rod 3766 also moves downwards along with the blanking cylinder 3762, the upper end of the driving rod 3766 is in contact with the stop block 3767 and stops moving downwards, the blanking cylinder 3762 continues to move downwards and drives the spiral groove 3763 to move downwards, and the sliding column 3768 stops moving downwards and the spiral groove 3763 needs to move downwards, so that the blanking cylinder 3762 rotates while moving downwards and carries out edge grinding treatment on the inner wall of the hole through the edge grinding branched chain 377.

Referring to fig. 5, the edging branch chain 377 includes a groove 3771, a trapezoidal edging block 3772 and a compression spring 3773, the left and right sides of the outer wall of the blanking cylinder 3762 are symmetrically provided with the groove 3771, the trapezoidal edging block 3772 is slidably mounted in the groove 3771, the trapezoidal edging block 3772 is connected with the groove 3771 through the compression spring 3773 which is uniformly arranged, during specific work, when the trapezoidal edging block 3772 is in contact with the inner wall of the hole, the inner wall of the hole pushes the trapezoidal edging block 3772 to move towards the inner side of the groove 3771 and extrude the compression spring 3773, and under the elastic action of the compression spring 3773, the trapezoidal edging block 3772 is tightly attached to the inner wall of the hole and rotates along with the rotation of the blanking cylinder 3762 to edging the inner wall of the hole.

In addition, the invention also provides a blanking process of the automatic punching machine for the hole arrangement of the edge of the metal plate, which comprises the following steps: s1, placing the plate: the flap 382 is withdrawn and inserted into the card slot 381 at the proper location depending on the size of the sheet metal panel, which is then placed on the support bracket 38 with its rear end in contact with the flap 382.

S2, clamping the plate: the two-way lead screw 346 is rotated by manually rotating the rocker 347, so that the sliding frames 32 on both sides move toward each other and the position of the metal plate is positioned and clamped by the clamping plate 343.

S3, blanking and arranging holes: the hydraulic cylinder 36 drives the blanking mechanism 37 to move downwards, so that the blanking mechanism 37 is in contact with the edges of the left side and the right side of the metal plate and punches and grinds the edges of the metal plate.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic blanking machine of metal sheet edge round, includes mounting plate (1), places pole (2) and blanking device (3), its characterized in that: the lower end surface of the mounting bottom plate (1) is uniformly fixed with placing rods (2) close to four corners, and the upper end surface of the mounting bottom plate (1) is provided with a blanking device (3); wherein:

the blanking device (3) comprises a limiting slide rail (31), a sliding frame (32), discharge holes (33), a clamping mechanism (34), an installation frame (35), a hydraulic cylinder (36), a blanking mechanism (37) and a support bracket (38), wherein the limiting slide rail (31) is symmetrically fixed on the front side and the rear side of the upper end surface of the installation bottom plate (1), the sliding frame (32) is arranged on the limiting slide rail (31) in a sliding mode and is symmetrical left and right, a plurality of discharge holes (33) are uniformly formed in the upper end of the sliding frame (32), the clamping mechanism (34) is arranged on the sliding frame (32), the installation frame (35) is connected to the rear end of the sliding frame (32), the hydraulic cylinder (36) is installed in the middle of the upper end of the installation frame (35) through a base, the installation frame (35) is composed of an L-shaped plate fixed to the rear end of the sliding frame (32) and a horizontal plate fixed to the top of the L-shaped plate, the blanking mechanism (37) is connected to the ejection end of the hydraulic cylinder (36), a support bracket (38) is arranged in the middle of the upper end of the mounting bottom plate (1);

the blanking mechanism (37) comprises a mounting plate (371), a sliding shaft (372), a prepressing plate (373), through holes (374), a compression spring (375), blanking branched chains (376) and edging branched chains (377), the mounting plate (371) is connected to the ejection end of the hydraulic cylinder (36), the sliding shaft (372) which is bilaterally symmetrical is arranged at the upper end of the mounting frame (35) in a sliding mode, the lower side of the sliding shaft (372) penetrates through the mounting plate (371) in a sliding mode, the prepressing plate (373) is connected to the lower end of the sliding shaft (372), the compression spring (375) is connected between the prepressing plate (373) and the mounting plate (371), a plurality of blanking branched chains (376) are uniformly arranged on the lower side of a horizontal plate of the mounting frame (35), edging branched chains (377) are arranged on the blanking branched chains (376), and a plurality of through holes (374) are uniformly formed in the prepressing plate (373);

the blanking branched chain (376) comprises a rotating plate (3761), a blanking barrel (3762), a spiral groove (3763), a limiting rod (3764), a sliding groove (3765), a driving rod (3766), a stop block (3767) and a sliding column (3768), the lower extreme of mounting panel (371) is rotated and is installed commentaries on classics board (3761), the lower terminal surface of commentaries on classics board (3761) even has blanking section of thick bamboo (3762), offered on blanking section of thick bamboo (3762) inner wall helicla flute (3763), the horizontal plate downside of mounting bracket (35) is fixed with gag lever post (3764), the downside slip of gag lever post (3764) runs through in mounting panel (371) and commentaries on classics board (3761), spout (3765) have been seted up in gag lever post (3764), it drives pole (3766) to slide in spout (3765), dog (3767) are installed to the downside of spout (3765) inner wall, the lower extreme that drives pole (3766) is provided with traveller (3768), the end of traveller (3768) sets up in helicla flute (3763).

2. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 1, wherein: edging branch chain (377) including recess (3771), trapezoidal edging piece (3772) and pressure spring (3773), recess (3771) have been seted up to the left and right sides symmetry of blanking section of thick bamboo (3762) outer wall, slidable mounting has trapezoidal edging piece (3772) in recess (3771), trapezoidal edging piece (3772) are connected with recess (3771) through pressure spring (3773) of evenly setting.

3. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 1, wherein: the outer wall of the output end of the hydraulic cylinder (36) is provided with an auxiliary connecting frame (361), the lower end of the auxiliary connecting frame (361) is arranged at the upper end of the mounting plate (371), and a limiting rod (3764) which is in contact with the auxiliary connecting frame (361) penetrates through the auxiliary connecting frame (361) in a sliding mode.

4. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 1, wherein: the discharge hole (33) and the through hole (374) have the same diameter and are positioned on the same central line.

5. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 1, wherein: the clamping mechanism (34) comprises a fixed plate (341), a sliding rod (342), a clamping plate (343), a clamping spring (344), a connecting block (345), a bidirectional screw rod (346) and a rocker (347), one side that the support bracket (38) was kept away from to the upper end of carriage (32) is fixed with fixed plate (341), both ends symmetry slidable mounting has slide bar (342) around fixed plate (341) lateral wall is close to, the one end that slide bar (342) are close to support bracket (38) even has grip block (343), it has centre gripping spring (344) to link between the one end that clamp block (343) was kept away from in slide bar (342) and fixed plate (341), the lower extreme mid-mounting of carriage (32) has connecting block (345), the downside of support bracket (38) is rotated and is installed two-way lead screw (346), both ends threaded connection is on connecting block (345) about two-way lead screw (346), the right-hand member of two-way lead screw (346) even has rocker (347).

6. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 5, wherein: a plurality of clamping grooves (381) are uniformly formed in the upper end face of the supporting bracket (38), and a baffle plate (382) is clamped in one clamping groove (381).

7. The automatic punching machine for the hole array of the edge of the metal plate as claimed in claim 6, wherein: the use method of the automatic punching machine for the hole arrangement of the edge of the metal plate comprises the following steps:

s1, placing the plate: withdrawing the baffle plate (382) and inserting the baffle plate into the clamping groove (381) at a proper position according to the size of the metal plate, and then placing the metal plate on the support bracket (38) and enabling the rear end of the metal plate to be in contact with the baffle plate (382);

s2, clamping the plate: the rocker (347) is manually rotated to rotate the bidirectional lead screw (346), so that the sliding frames (32) on the two sides move oppositely, and the position of the metal plate is positioned and clamped through the clamping plate (343);

s3, blanking and arranging holes: the hydraulic cylinder (36) drives the blanking mechanism (37) to move downwards, so that the blanking mechanism (37) is in contact with the edges of the left side and the right side of the metal plate and performs punching and edge grinding on the metal plate;