CN112387883A

CN112387883A - Plate positioning and punching system and positioning method

Info

Publication number: CN112387883A
Application number: CN202011405145.1A
Authority: CN
Inventors: 杨宗玉
Original assignee: Brackett Equipment Suzhou Co ltd
Current assignee: Brackett Equipment Suzhou Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-02-23
Anticipated expiration: 2040-12-02
Also published as: CN112387883B

Abstract

The utility model belongs to the technical field of machining equipment and specifically relates to a panel location punching system is related to, including the transfer gear, hold-down mechanism and drift, the transfer gear is used for along sharp conveying panel, hold-down mechanism is used for compressing tightly panel on the transfer gear, a plurality of locating holes have on the panel, still include the push pedal, the second baffle of first baffle and liftable, the second baffle is located between first baffle and the drift, the push pedal is just setting up first baffle, the push pedal is used for bulldozing panel to first baffle horizontally when panel contact second baffle, the second baffle is used for blocking the panel tip by the transfer gear conveying when rising, let go the panel by the transfer gear conveying when descending. The plate is not required to be clamped on the clamp during each punching, and the plate is not required to be detached from the clamp during the punching, so that the punching efficiency of large-batch plates is greatly improved compared with the mode of clamping the plate by using the clamp for punching.

Description

Plate positioning and punching system and positioning method

Technical Field

The application relates to the field of machining equipment, in particular to a plate positioning and punching system and a positioning method.

Background

In the field of machining, it is often the operation involved in punching the sheet, which is mainly performed on a punch press. For a workpiece with high requirement on the position precision of punching, a plate workpiece needs to be reliably fixed, and meanwhile, the position of a hole needs to be accurately positioned.

When a plate is punched on a punch press, the plate needs to be fixed at a designated position by a clamp firstly, then the punch press is started to start punching, after all hole positions are processed, the plate is detached from the clamp, and then another plate is clamped on the clamp to continue punching. The efficiency of punching a large batch of plates on a punch press is low because a large amount of working hours are wasted in disassembling and assembling the plates on the clamp.

Disclosure of Invention

In order to solve the problem that the punching processing efficiency is influenced by the fact that a plate is disassembled and assembled on a clamp, the application provides a plate positioning and punching system and a positioning method.

In a first aspect, the present application provides a panel positioning and punching system, which adopts the following technical scheme:

a plate positioning and punching system comprises a conveying wheel, a pressing plate mechanism and a punch, wherein the conveying wheel is used for conveying a plate along a straight line, the pressing plate mechanism is used for pressing the plate on the conveying wheel, a plurality of positioning holes are formed in the plate, the plate positioning and punching system further comprises a push plate, a first baffle plate and a liftable second baffle plate, the second baffle plate is located between the first baffle plate and the punch, the push plate is arranged opposite to the first baffle plate, the push plate is used for horizontally pushing and pressing the plate onto the first baffle plate when the plate contacts the second baffle plate, and the second baffle plate is used for blocking the end part of the plate conveyed by the conveying wheel when being lifted and releasing the plate conveyed by the conveying wheel when being lowered;

the material pushing mechanism comprises a first moving mechanism, a first driving mechanism and a first clamping head, the first moving mechanism is used for driving the first driving mechanism to move in the direction perpendicular to the axial direction of the conveying wheel, and the first driving mechanism is used for driving the first clamping head to be clamped into a positioning hole of a plate pressed on the first baffle;

the material dragging mechanism comprises a second moving mechanism, a second driving mechanism and a second clamping head, the second moving mechanism is used for driving the second driving mechanism to move in the axial direction perpendicular to the conveying wheel, and the second driving mechanism is used for driving the second clamping head to be clamped into the positioning hole in the plate before the plate is separated from the first baffle.

By adopting the technical scheme, the second baffle, the push plate and the first baffle are utilized to position the plate, so that the first chuck can accurately and unmistakably connect the positioning holes on the plate; under the limiting action of the first baffle plate on the side face of the plate, the plate is driven to move for a specified distance by the first moving mechanism, so that the punch can accurately punch a first positioning hole; the plate is continuously limited by the first baffle plate, the first moving mechanism is used for continuously driving the plate to move for a specified distance, the second clamping head can be accurately connected with the punched positioning hole on the plate, and therefore the first moving mechanism and the second moving mechanism jointly drive the plate to intermittently move, and all the positioning holes are punched accurately.

According to the process, the plate does not need to be clamped on the clamp during punching at each time, and the plate does not need to be detached from the clamp during punching, so that the punching efficiency of large-batch plates is greatly improved compared with a mode of clamping the plate to punch by using the clamp.

Optionally, the pushing mechanism further includes a first rotating arm, the first chuck is disposed on the first rotating arm, the first driving mechanism is configured to drive the first rotating arm to rotate, and the first chuck is configured to be clamped into the positioning hole of the plate when rotating with the first rotating arm; the material dragging mechanism further comprises a second rotating arm, a second clamping head is arranged on the second rotating arm, a second driving mechanism is used for driving the second rotating arm to rotate, and the second clamping head is clamped into the positioning hole in the plate when rotating along with the second rotating arm.

By adopting the technical scheme, the chuck can be smoothly clamped into the positioning hole of the plate by utilizing the rotation action of the rotating arm, and the probability that the chuck and the positioning hole are clamped to be dead and cannot be separated can be effectively reduced.

Optionally, the first driving mechanism is configured to drive the first rotating arm to rotate around a shaft parallel to the axis of the transfer wheel, and the second driving mechanism is configured to drive the second rotating arm to rotate around a shaft parallel to the axis of the transfer wheel.

By adopting the technical scheme, the probability that the clamping head and the positioning hole are clamped to be dead and cannot be separated is further reduced.

Optionally, the first chuck and the second chuck both comprise spheres, and the spheres are used for being clamped into the positioning holes of the plate.

By adopting the technical scheme, the surface of the ball body is smooth and is not easy to clamp when being matched with the positioning hole.

Optionally, the first rotating arm and the second rotating arm are both in threaded connection with studs, and the ball is fixed at the end of the stud.

By adopting the technical scheme, the depth of the ball body inserted into the positioning hole can be adjusted by rotating the stud, so that when the chuck is connected with the positioning hole, no gap for the movement of the ball body exists between the ball body and the inner wall of the positioning hole.

Optionally, the first driving mechanism and the second driving mechanism both include a rotating shaft, the first rotating arm and the second rotating arm are both detachably connected to the rotating shaft, and the positions of the first rotating arm and the second rotating arm in the length direction of the rotating shaft are adjustable.

By adopting the technical scheme, the positions of the first rotating arm and the second rotating arm on the rotating shaft can be adjusted according to the distance between the positioning hole of the plate and the first baffle plate, so that the first clamping head and the second clamping head can be accurately inserted into the positioning hole.

Optionally, the side surface of the rotating shaft is provided with an elongated slot along the length direction of the rotating shaft, the first rotating arm and the second rotating arm are both provided with sleeves, the sleeves are sleeved outside the rotating shaft, the sleeves are in threaded connection with screws, and the screws abut against the inner wall of the elongated slot.

Through adopting above-mentioned technical scheme, provide first swinging boom and second swinging boom at the specific structure of rotation axis length direction adjustable position.

In a second aspect, the present application provides a positioning method, which adopts the following technical solutions:

a positioning method comprises the following steps:

step1, the plate is conveyed by the conveying wheel along a straight line until the plate is stopped by the second baffle;

step2, pushing the plate to the first baffle plate by a push plate;

step3, driving a first chuck to be clamped into a positioning hole of the plate by a first driving mechanism;

step4, the second baffle plate descends, and the first moving mechanism pushes the plate tightly attached to the first baffle plate to move towards the punch;

step5, when the plate clings to the first baffle plate to move, the positioning hole closest to the material dragging mechanism moves to the position right below the punch;

step6, pressing the plate by a plate pressing mechanism, and punching the positioning hole into a specified shape by a punch;

step7, releasing the plate by the plate pressing mechanism, continuing to push the plate by the first moving mechanism to move forwards for a specified distance by clinging to the first baffle plate, and stopping, and driving the second chuck to be clamped into the positioning hole which is punched on the plate by the second driving mechanism;

step8, the second moving mechanism and the first moving mechanism synchronously move to drive the plate to intermittently advance for a specified distance, the plate is pressed by the plate pressing mechanism when the plate stops advancing each time, and the punch punches a positioning hole right below the plate into a specified shape;

step9, before the first clamping head moves to the position right below the punch, the first driving mechanism drives the first clamping head to be separated from the positioning hole of the plate, and then the first moving mechanism resets;

and step10, the second moving mechanism drives the plate to move until all the positioning holes are punched, the second driving mechanism drives the second chuck to be separated from the positioning holes of the plate, and the conveying wheel continues to convey the plate.

By adopting the technical scheme, the automatic processing of the whole process that the plate is transferred to the lower part of the punch from the transfer to the completion of punching and then transferred is realized.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the plate does not need to be clamped on the clamp during each punching and is not required to be detached from the clamp during the punching, so that the punching efficiency of the large-batch plates is greatly improved compared with the punching mode of clamping the plates by using the clamp;

2. the automatic processing of the whole process that the plate flows to the position below the punch from flowing to the position after punching is completed is realized.

Drawings

Fig. 1 is a schematic structural diagram of an overall positioning and punching system for a sheet material according to an embodiment of the present application;

FIG. 2 is a perspective view of a plate positioning and punching system according to an embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B in fig. 1.

Description of reference numerals: 1. a transfer wheel; 2. a platen mechanism; 3. a punch; 4. a plate material; 5. positioning holes; 6. a material pushing mechanism; 7. a first moving mechanism; 8. a first drive mechanism; 9. a first rotating arm; 10. a first chuck; 11. pushing the plate; 12. a first baffle plate; 13. a second baffle; 14. a material dragging mechanism; 15. a second moving mechanism; 16. a second drive mechanism; 17. a second rotating arm; 18. a second chuck; 19. a sphere; 20. a stud; 21. a rotating shaft; 22. a long groove; 23. a sleeve; 24. a screw; 25. a linear conveyor line; 26. a frame body; 27. a first cylinder; 28. pressing a plate; 29. a second cylinder; 30. a photoelectric sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses panel location punching system. Referring to fig. 1, the plate positioning and punching system includes a punch 3, a linear transmission line 25 disposed right below the punch 3, a first baffle 12 and a push plate 11 disposed on two sides of the linear transmission line 25, a press plate mechanism 2 disposed beside the punch 3, a material pushing mechanism 6 and a material dragging mechanism 14 disposed on two ends of the linear transmission line 25.

Referring to fig. 1, the linear conveying line 25 is used for conveying a plate 4 along a straight line, a row of positioning holes 5 are machined in advance in the plate 4, the positioning holes 5 are arranged at equal intervals in the length direction of the plate 4, the positioning holes 5 are round holes, and after the punch 3 punches the hole, the positioning holes 5 become square holes. The linear conveying line 25 is composed of a frame 26, a motor and a plurality of mutually parallel conveying wheels 1, wherein the motor and the conveying wheels 1 are arranged on the frame 26, and the motor drives all the conveying wheels 1 to synchronously rotate.

Referring to fig. 1, the pressing plate mechanism 2 is used for pressing the plate 4 onto the conveying wheel 1, the pressing plate mechanism 2 is composed of a first cylinder 27 and a pressing plate 28, a housing of the first cylinder 27 and the pressing plate 28 are hinged on the punch, and a piston rod of the first cylinder 27 is hinged on the pressing plate 28. When the piston rod of the first cylinder 27 extends, the pressing plate 28 can press the plate 4 downwards; when the piston rod of the first cylinder 27 is retracted, the pressure plate 28 releases the plate 4.

Referring to fig. 2, the number of the push plates 11 is multiple, all the push plates 11 are arranged opposite to the first baffle 12, and the opposite surfaces of the push plates 11 and the first baffle 12 are vertical to the axis of the conveying wheel 1. The push plate 11 is driven by a second air cylinder 29, the push plate 11 is positioned between the second air cylinder 29 and the first baffle plate 12, and the axis of the piston rod of the second air cylinder 29 is parallel to the axis of the conveying wheel 1. The second baffle 13 is located between the first baffle 12 and the punch 3, and the second baffle 13 can be lifted. The bottom of the second baffle 13 is connected with a telescopic cylinder, and when a piston rod of the telescopic cylinder extends out, the second baffle 13 stops the plate 4 on the conveying wheel 1 from advancing; when the piston rod of the telescopic cylinder is retracted, the second flap 13 is lowered to let the sheet 4 go.

Referring to fig. 2, a photoelectric sensor 30 is embedded in the second barrier 13, and when the plate 4 contacts the second barrier 13, the photoelectric sensor 30 is triggered. The push plate 11, the first baffle plate 12 and the second baffle plate 13 have the following functions: when the plate 4 contacts the second baffle 13, the photoelectric sensor 30 is triggered and sends an electric signal to the controller, the controller controls the second cylinder 29 to push the push plate 11 towards the first baffle 12, and the push plate 11 horizontally pushes the plate 4 against the first baffle 12.

Referring to fig. 2, the pushing mechanism 6 includes a first moving mechanism 7, a first driving mechanism 8, a first rotating arm 9, and a first chuck 10. The first moving mechanism 7 is a slider driven by a ball screw or an electric cylinder, and the first moving mechanism 7 moves in a conveying direction parallel to the linear conveying line 25. The first driving mechanism 8 is connected to the first moving mechanism 7, and the first driving mechanism 8 includes a motor and a rotating shaft 21 driven by the motor. One end of the first rotating arm 9 is detachably connected to the rotating shaft 21, and the other end of the first rotating arm 9 is detachably connected to the first chuck 10. The rotating shaft 21 is horizontal and parallel to the axis of the transfer wheel 1, and the first rotating arm 9 and the first chuck 10 are both perpendicular to the rotating shaft 21.

Referring to fig. 1, the dragging mechanism 14 includes a second moving mechanism 15, a second driving mechanism 16, a second rotating arm 17 and a second chuck 18. The second moving mechanism 15 is a slider driven by a ball screw or an electric cylinder, and the second moving mechanism 15 moves in a conveying direction parallel to the linear conveying line 25. The second driving mechanism 16 is fixed to the second moving mechanism 15, and the second driving mechanism 16 includes a motor and a rotating shaft 21 driven by the motor. One end of the second rotating arm 17 is detachably connected to the rotating shaft 21, and the other end of the second rotating arm 17 is detachably connected to the second chuck 18. The rotating shaft 21 is horizontal and parallel to the axis of the transfer wheel 1, and the second rotating arm 17 and the second chuck 18 are both perpendicular to the rotating shaft 21.

Referring to fig. 3, a long groove 22 is formed in the side surface of the rotating shaft 21 along the length direction of the rotating shaft, sleeves 23 are fixed to the end portions of the first rotating arm 9 and the second rotating arm 17, the sleeves 23 are sleeved outside the rotating shaft 21, screws 24 are connected to the sleeves 23 in a threaded mode, and the screws 24 abut against the inner wall of the long groove 22. The position of the sleeve 23 can be adjusted along the axial direction of the rotating shaft 21 by loosening the screw 24, and the screw 24 can be tightened after the adjustment is finished.

Referring to fig. 4, each of the first chuck 10 and the second chuck 18 is composed of a stud 20 and a ball 19, and the ball 19 is fixed to one end of the stud 20. Nuts are welded on the first rotating arm 9 and the second rotating arm 17, and the stud 20 is connected in the nuts in a threaded mode.

Referring to fig. 3 and 4, when the rotating shaft 21 of the pushing mechanism 6 rotates to drive the stud 20 on the first rotating arm 9 to rotate, the stud 20 can reach a vertical or nearly vertical shape, and at this time, the ball 19 can be inserted into a certain positioning hole 5 of the plate 4 pressed on the first baffle 12. Similarly, when the rotation shaft 21 of the pulling mechanism 14 rotates to rotate the stud 20 on the second rotating arm 17, the ball 19 on the stud 20 can be inserted into a positioning hole 5 of the plate 4 separated from the first baffle 12. And when the part of the first rotating arm 9 or the second rotating arm 17 connected with the stud 20 is horizontal, the stud 20 is vertical.

The implementation principle of a panel location punching system of the embodiment of the application is: the second baffle 13, the push plate 11 and the first baffle 12 are used for positioning the plate 4, so that the first chuck 10 can accurately connect the positioning holes 5 on the plate 4; under the limiting action of the first baffle 12 on the side face of the plate 4, the plate 4 is driven to move for a specified distance by the first moving mechanism 7, so that the punch 3 can accurately punch a first positioning hole 5; under the continuous limiting of the first baffle plate 12, the plate 4 is continuously driven by the first moving mechanism 7 to move for a specified distance, so that the second chuck 18 can accurately connect the punched positioning holes 5 on the plate 4, and the first moving mechanism 7 and the second moving mechanism 15 jointly drive the plate 4 to intermittently move, thereby realizing the accurate punching of all the positioning holes 5.

The positioning method of the plate positioning and punching system in the embodiment of the application comprises the following steps:

the first step, the second baffle 13 rises, the conveying wheel 1 conveys the plate 4 along a straight line until the plate 4 is stopped by the second baffle 13, and at the moment, the plate 4 triggers the photoelectric sensor 30 on the second baffle 13;

secondly, the photoelectric sensor 30 sends an electric signal to the controller, and the controller controls the second cylinder 29 to push the plate 4 to the first baffle plate 12 through the push plate 11;

thirdly, the first driving mechanism 8 drives the first rotating arm 9 to rotate, so that the first clamping head 10 on the first rotating arm 9 is clamped into the positioning hole 5 of the plate 4;

after the preset time delay (starting to time for 1 second from the start of the push plate 11 by the second air cylinder 29) of the controller is finished, the controller controls the second baffle 13 to descend, and after the time delay of 0.5 second, the controller controls the first moving mechanism 7 to push the plate 4 tightly attached to the first baffle 12 to move towards the punch 3;

fifthly, when the plate 4 moves close to the first baffle plate 12, the positioning hole 5 closest to the material dragging mechanism 14 moves to a position right below the punch 3 (the distance from the second baffle plate 13 to the punch 3 is fixed to be M, and the controller presets that the first moving mechanism 7 moves by the distance M after being released by the second baffle plate 13);

sixthly, the pressing plate mechanism 2 presses the plate 4, and the punch 3 punches the positioning hole 5 into a specified shape;

the pressing plate mechanism 2 releases the plate 4, the first moving mechanism 7 continues to push the plate 4 to cling to the first baffle plate 12 to move forwards for a specified distance and then stops, and the second driving mechanism 16 drives the second chuck 18 to be clamped into the positioning hole 5 which is punched on the plate 4;

the eighth step, the second moving mechanism 15 and the first moving mechanism 7 synchronously move to drive the plate 4 to intermittently advance for a specified distance, when the plate 4 stops advancing each time, the plate 4 is pressed by the plate pressing mechanism 2, and the punch 3 punches the positioning hole 5 right below the plate into a specified shape;

before the first clamping head 10 moves to the position right below the punch 3, the first driving mechanism 8 drives the first clamping head 10 to be separated from the positioning hole 5 of the plate 4, and then the first moving mechanism 7 is reset;

and tenth step, the second moving mechanism 15 drives the plate 4 to move until all the positioning holes 5 are punched, the second driving mechanism 16 drives the second chuck 18 to be separated from the positioning holes 5 of the plate 4, and the conveying wheel 1 continues to convey the plate 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a panel location punching system, includes transfer gear (1), clamp plate mechanism (2) and drift (3), and transfer gear (1) is used for along sharp conveying panel (4), and clamp plate mechanism (2) are used for compressing tightly panel (4) on transfer gear (1), have a plurality of locating holes (5) on panel (4), its characterized in that:

the plate conveying device is characterized by further comprising a push plate (11), a first baffle (12) and a second baffle (13) capable of being lifted, wherein the second baffle (13) is located between the first baffle (12) and the punch (3), the push plate (11) is arranged right opposite to the first baffle (12), the push plate (11) is used for horizontally pushing and pressing the plate (4) to the first baffle (12) when the plate (4) contacts the second baffle (13), the second baffle (13) is used for blocking the end part of the plate (4) conveyed by the conveying wheel (1) when being lifted, and releasing the plate (4) conveyed by the conveying wheel (1) when being lowered;

the material pushing device is characterized by further comprising a material pushing mechanism (6), wherein the material pushing mechanism (6) comprises a first moving mechanism (7), a first driving mechanism (8) and a first clamping head (10), the first moving mechanism (7) is used for driving the first driving mechanism (8) to axially move along the direction perpendicular to the conveying wheel (1), and the first driving mechanism (8) is used for driving the first clamping head (10) to be clamped into the positioning hole (5) of the plate (4) pressed on the first baffle (12);

the plate conveying device is characterized by further comprising a material dragging mechanism (14), wherein the material dragging mechanism (14) comprises a second moving mechanism (15), a second driving mechanism (16) and a second clamping head (18), the second moving mechanism (15) is used for driving the second driving mechanism (16) to axially move along the direction perpendicular to the conveying wheel (1), and the second driving mechanism (16) is used for driving the second clamping head (18) to be clamped into the positioning hole (5) in the plate (4) before the plate (4) is separated from the first baffle (12).

2. The sheet positioning and punching system of claim 1, wherein: the pushing mechanism (6) further comprises a first rotating arm (9), a first clamping head (10) is arranged on the first rotating arm (9), a first driving mechanism (8) is used for driving the first rotating arm (9) to rotate, and the first clamping head (10) is clamped into the positioning hole (5) in the plate (4) when rotating along with the first rotating arm (9); the material dragging mechanism (14) further comprises a second rotating arm (17), a second clamping head (18) is arranged on the second rotating arm (17), a second driving mechanism (16) is used for driving the second rotating arm (17) to rotate, and the second clamping head (18) is clamped into the positioning hole (5) in the plate (4) when rotating along with the second rotating arm (17).

3. The sheet positioning and punching system of claim 2, wherein: the first driving mechanism (8) is used for driving the first rotating arm (9) to rotate around a shaft parallel to the axis of the conveying wheel (1), and the second driving mechanism (16) is used for driving the second rotating arm (17) to rotate around a shaft parallel to the axis of the conveying wheel (1).

4. The sheet positioning and punching system of claim 2, wherein: the first clamping head (10) and the second clamping head (18) both comprise a ball body (19), and the ball body (19) is used for being clamped into the positioning hole (5) of the plate (4).

5. The plate positioning and punching system of claim 4, wherein: the first rotating arm (9) and the second rotating arm (17) are both in threaded connection with a stud (20), and the ball body (19) is fixed at the end part of the stud (20).

6. The sheet positioning and punching system of claim 2, wherein: first actuating mechanism (8) and second actuating mechanism (16) all include rotation axis (21), and first swinging boom (9) and second swinging boom (17) all can dismantle with rotation axis (21) and be connected, and first swinging boom (9) and second swinging boom (17) are adjustable in rotation axis (21) length direction's position.

7. The sheet positioning and punching system of claim 6, wherein: the side of the rotating shaft (21) is provided with an elongated slot (22) along the length direction of the rotating shaft (21), sleeves (23) are arranged on the first rotating arm (9) and the second rotating arm (17), the rotating shaft (21) is sleeved with the sleeves (23), the sleeves (23) are in threaded connection with screws (24), and the screws (24) abut against the inner wall of the elongated slot (22).

8. A method for positioning a punching system for positioning a sheet material according to claim 1, comprising the steps of:

step1, the plate (4) is conveyed by the conveying wheel (1) along a straight line until the plate is stopped by the second baffle (13);

step2, the plate (4) is pushed to the first baffle plate (12) by the push plate (11);

step3, driving a first clamping head (10) to be clamped into a positioning hole (5) of the plate (4) by a first driving mechanism (8);

step4, the second baffle (13) descends, and the first moving mechanism (7) pushes the plate (4) tightly attached to the first baffle (12) to move towards the punch (3);

step5, when the plate (4) is tightly attached to the first baffle (12) to move, the positioning hole (5) closest to the material dragging mechanism (14) moves to the position right below the punch (3);

step6, pressing the plate (4) by the plate pressing mechanism (2), and punching the positioning hole (5) into a specified shape by the punch (3);

step7, releasing the plate (4) by the plate pressing mechanism (2), continuously pushing the plate (4) by the first moving mechanism (7) to be attached to the first baffle (12) for a specified distance, and then stopping, and driving the second chuck (18) to be clamped into the positioning hole (5) which is punched on the plate (4) by the second driving mechanism (16);

step8, the second moving mechanism (15) and the first moving mechanism (7) move synchronously to drive the plate (4) to move forward intermittently for a specified distance, the plate (4) is pressed by the plate pressing mechanism (2) when the plate (4) stops moving forward each time, and the punch (3) punches the positioning hole (5) right below the punch into a specified shape;

step9, before the first clamping head (10) moves to the position right below the punch (3), the first driving mechanism (8) drives the first clamping head (10) to be separated from the positioning hole (5) of the plate (4), and then the first moving mechanism (7) resets;

and step10, driving the plate (4) to move by the second moving mechanism (15) until all the positioning holes (5) are punched, driving the second chuck (18) to be separated from the positioning holes (5) of the plate (4) by the second driving mechanism (16), and continuously conveying the plate (4) by the conveying wheel (1).