A robot vision guided automatic positioning protection device for workpieces in a die cutting production line

Abstract

This invention discloses an automatic workpiece positioning and protection device in a robot vision-guided punching production line, belonging to the technical field of automatic positioning and protection devices for punching workpieces. It includes an insulated transverse mounting plate disposed at both ends of the upper surface of the feeding assembly line support. This device, through the installation of conductive rotating limiting components that cooperate with conductive telescopic rollers, can clamp and fix both sides of the sheet metal, preventing vibration of the sheet metal during punching and thus avoiding displacement of the sheet metal position in subsequent punchings. The installation of conductive slip rings facilitates the detection of the end position of the sheet metal by the punching machine control cabinet. When the remaining sheet metal is insufficient to form a qualified product, the end of the sheet metal does not contact the conductive telescopic rollers, and the punching machine control cabinet can detect the insufficient sheet metal, stopping the punching of the remaining sheet metal. This prevents sheet metal from splashing onto workers and causing irreparable injury.

Description

Technical Field

[0001] This invention relates to the technical field of automatic positioning and protection devices for punching workpieces, specifically to an automatic positioning and protection device for workpieces in a robot vision-guided punching production line. Background Technology

[0002] Robot vision refers to the system that enables robots to have visual perception capabilities, and it is one of the important components of a robot system. Robot vision can acquire two-dimensional images of the environment through visual sensors, analyze and interpret them through a visual processor, and then convert them into symbols, enabling the robot to recognize objects and determine their positions. Robot vision is widely used in industrial production. In particular, in a punching production line, robots guided by robot vision can perform punching operations on workpieces better and faster, greatly saving labor costs.

[0003] However, in current robot vision-guided punching production lines, the stamping machine applies force to the sheet metal during the stamping process. This force causes vibration, which can lead to a shift in the position of the sheet metal for subsequent stamping on the production line. This affects the stamping process. When the remaining sheet metal is insufficient to form a qualified product, the uneven force applied to the remaining sheet metal during stamping can cause it to splatter. If this splattered sheet metal hits workers, it can cause irreparable injury.

[0004] To address this, an automatic workpiece positioning and protection device for robot vision-guided punching production lines is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic workpiece positioning and protection device in a robot vision-guided punching production line, to solve the problem mentioned in the background art where, during the punching of the workpiece by the punching machine, the sheet metal is subjected to force, which causes vibration and leads to the displacement of the sheet metal for subsequent punching on the production line, thus affecting the punching of the sheet metal. When the remaining sheet metal is insufficient to be punched into a qualified product, the remaining sheet metal is subjected to uneven force when the punching machine punches the remaining sheet metal, which may cause the sheet metal to splatter. If the splattered sheet metal hits the workers, it will cause irreparable damage to the workers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic workpiece positioning and protection device in a robot vision-guided punching production line, comprising a feeding assembly line support:

[0007] An insulating transverse mounting plate is disposed at both ends of the upper surface of the feeding assembly line support. A limit mounting bracket is installed on the side of the insulating transverse mounting plate away from the feeding assembly line support. A pressing mounting plate is installed at the upper end of the insulating transverse mounting plate. A conductive rotating limit component is installed at the lower end of the insulating transverse mounting plate. A conductive slip ring is installed at the upper end of the conductive rotating limit component. The conductive slip ring is fixedly connected to the conductive rotating limit component. A conductive telescopic roller is installed on the outside of the conductive rotating limit component. The conductive telescopic roller is slidably connected to the conductive rotating limit component through a slot. A hydraulic oil filling pipe is installed at the front end of the upper surface of the conductive rotating limit component.

[0008] A cleaning roller is disposed on one side of the upper end of the feeding assembly line support. A drive rod is disposed on the side of the cleaning roller near the conductive rotation limiter. An elastic silicone wheel is disposed on the outside of the drive rod. The middle part of the elastic silicone wheel is connected to the drive rod by a key. Clamping parts are installed at both ends of the elastic silicone wheel. A clamping screw is disposed between the two clamping parts. The clamping screw is threadedly connected to the clamping parts. Pulleys are disposed at the rear ends of both the drive rod and the cleaning roller. There are two pulleys. A transmission belt is installed between the two pulleys. Cleaning bristles are disposed on the outside of the cleaning roller.

[0009] Preferably, a stamping machine is installed on the other side of the feeding assembly line bracket. The stamping machine is fixedly connected to the feeding assembly line bracket. A robot vision camera is installed on the inner side of the stamping machine. The robot vision camera is fixedly connected to the stamping machine. A control cabinet is provided on the outside of the stamping machine, and the control cabinet is connected to the conductive slip ring through a wire.

[0010] Preferably, adjusting screws are installed on both sides of the front and rear end faces of the feeding assembly line bracket. The adjusting screws are threadedly connected to the feeding assembly line bracket, and one end of the adjusting screw is rotatably connected to the limiting mounting bracket via a bearing.

[0011] Preferably, there are two pressure mounting plates, and a pressure roller is installed between the two pressure mounting plates. The pressure roller is rotatably connected to the pressure mounting plate via a bearing. An anti-splash roller is installed on the outside of the pressure roller, and the anti-splash roller is fixedly connected to the pressure roller.

[0012] Preferably, conveyor rollers are installed on both sides inside the feeding assembly line bracket. The conveyor rollers are rotatably connected to the feeding assembly line bracket via bearings. There are two conveyor rollers, and a conveyor belt is provided between the two conveyor rollers.

[0013] Preferably, a feeding motor is installed on one side of the front end face of the feeding assembly line bracket, the feeding motor is fixedly connected to the feeding assembly line bracket, and the feeding motor is connected to the conveyor roller through a coupling.

[0014] Preferably, the limiting mounting bracket is welded to the insulating transverse mounting plate, the pressing mounting plate is welded to the insulating transverse mounting plate, and the conductive rotating limiting component is rotatably connected to the insulating transverse mounting plate via a bearing.

[0015] Preferably, the cleaning roller and the feeding assembly line bracket are rotatably connected by bearings, and the drive rod and the feeding assembly line bracket are rotatably connected by bearings.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, by installing a conductive rotating limiting component in conjunction with a conductive telescopic roller component, can clamp and fix both sides of the sheet metal, preventing vibration of the sheet metal during stamping and thus avoiding displacement of the sheet metal position in subsequent stampings, which would affect the stamping process. This enhances the stability of the sheet metal, prevents it from shaking, and ensures high product precision. The installation of a conductive slip ring allows a weak current to pass through the sheet metal, conductive telescopic roller component, conductive rotating limiting component, and wires to the control cabinet of the stamping machine. This facilitates the control cabinet's detection of the end position of the sheet metal. When the remaining sheet metal is insufficient to form a qualified product, the end of the sheet metal does not contact the conductive telescopic roller component, preventing the sheet metal, conductive telescopic roller component, conductive rotating limiting component, wires, and the control cabinet of the stamping machine from forming a closed loop. This allows the control cabinet to detect insufficient sheet metal, and the stamping machine stops stamping the remaining sheet metal, preventing sheet metal from splashing onto workers and causing irreparable injury.

[0018] 2. By installing conductive telescopic rollers, this invention can not only conduct electricity but also support and limit the plate. At the same time, the operator can add hydraulic oil into the conductive rotating limiting component through the hydraulic oil injection pipe to extend the conductive telescopic rollers. This allows the extension of the conductive telescopic rollers to be adjusted, enabling the device to clamp and limit plates of various widths, thus enhancing the practicality of the device.

[0019] 3. This invention, by installing an elastic silicone wheel in conjunction with two clamping components, allows the elastic silicone wheel to be clamped by the two clamping components when the operator tightens the clamping screw. This causes the elastic silicone wheel to deform, thereby changing its diameter. This allows boards of different thicknesses to be moved by the drive rod via the elastic silicone wheel, enabling the cleaning brushes on the outside of the cleaning roller to clean debris from the outside of the board, enhancing the effectiveness of the device. The cleaning brushes can also scrub the outside of the board, removing magnetic iron filings and preventing the stamping machine from stamping the board with the iron filings, which could scratch the board and affect product quality. At the same time, it also prevents some iron filings from splashing into the operator's eyes during the stamping process, thus providing protection. Attached Figure Description

[0020] Figure 1 This is a front-view three-dimensional perspective view of an automatic workpiece positioning and protection device in a robot vision-guided punching production line according to the present invention.

[0021] Figure 2 This is a top view of an automatic workpiece positioning and protection device in a robot vision-guided punching production line according to the present invention.

[0022] Figure 3 This is a rear-view three-dimensional perspective view of an automatic workpiece positioning and protection device in a robot vision-guided punching production line according to the present invention.

[0023] Figure 4 This is a diagram showing the connection relationship between the conductive rotary limiting component, the conductive telescopic roller component, and the conductive slip ring of the present invention.

[0024] Figure 5 This is a schematic diagram illustrating the linkage principle between the cleaning roller and the drive rod in this invention.

[0025] Figure 6 This is a side view of an automatic workpiece positioning and protection device in a robot vision-guided punching production line according to the present invention.

[0026] Figure 7 This is a diagram showing the connection relationship between the conductive rotation limiting component and the insulating transverse mounting plate of the present invention.

[0027] Figure 8 This diagram shows the connection relationship between the conductive rotary limiting component and the conductive telescopic roller component of the present invention.

[0028] Figure 9 This is a diagram showing the connection relationship between the clamping component and the clamping screw of the present invention.

[0029] In the diagram: 1. Feeding assembly line support; 2. Stamping machine; 3. Feeding motor; 4. Insulating horizontal mounting plate; 5. Lower pressure mounting plate; 6. Limiting mounting bracket; 7. Adjusting screw; 8. Cleaning roller; 9. Cleaning brush; 10. Lower pressure roller; 11. Anti-splash roller; 12. Conductive rotating limit component; 13. Conductive telescopic roller component; 14. Conductive slip ring; 15. Robot vision camera; 16. Conveyor belt; 17. Conveyor roller; 18. Pulley; 19. Transmission belt; 20. Drive rod; 21. Elastic silicone wheel; 22. Clamping component; 23. Clamping screw; 24. Hydraulic oil filling pipe. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Please see Figure 1-9 One embodiment of the present invention provides: an automatic workpiece positioning and protection device in a robot vision-guided punching production line, comprising a feeding assembly line support 1:

[0032] An insulating transverse mounting plate 4 is installed at both ends of the upper surface of the feeding assembly line bracket 1. A limiting mounting bracket 6 is installed on the side of the insulating transverse mounting plate 4 away from the feeding assembly line bracket 1. A pressing mounting plate 5 is installed at the upper end of the insulating transverse mounting plate 4, and a conductive rotation limiting component 12 is installed at the lower end of the insulating transverse mounting plate 4. The conductive rotation limiting component 12, in conjunction with the conductive telescopic roller component 13, can clamp and fix both sides of the plate, preventing the plate from vibrating under force during stamping, which would cause the position of the plate to shift during subsequent stamping. This affects the stamping of the sheet metal, enhances the stability of the sheet metal, prevents sheet metal wobbling, and ensures high product precision. A conductive slip ring 14 is installed on the upper end of the conductive rotary limiter 12. Installing the conductive slip ring 14 allows a weak current to pass through the sheet metal, conductive telescopic roller 13, conductive rotary limiter 12, and wires, transmitting it to the control cabinet of the stamping machine 2. This facilitates the control cabinet of the stamping machine 2 in detecting the end position of the sheet metal. When the remaining sheet metal is insufficient to stamp a qualified product, the end of the sheet metal does not contact the conductive telescopic roller 13, ensuring the sheet metal and conductive telescopic roller... The roller component 13, the conductive rotary limit component 12, the wire, and the control cabinet of the stamping machine 2 do not form a closed loop. This allows the control cabinet of the stamping machine 2 to detect insufficient sheet metal, causing the stamping machine 2 to stop stamping the remaining sheet metal, preventing sheet metal from splashing and causing irreparable injury to workers. The conductive slip ring 14 is fixedly connected to the conductive rotary limit component 12, and the conductive telescopic roller component 13 is installed on the outside of the conductive rotary limit component 12. Installing the conductive telescopic roller component 13 can not only conduct electricity. It can also support and limit the plate. At the same time, the staff can add hydraulic oil into the conductive rotating limiter 12 through the hydraulic oil injection pipe 24 to extend the conductive telescopic roller 13, thereby adjusting the extension of the conductive telescopic roller 13, so that the device can clamp and limit plates of various widths, enhancing the practicality of the device. The conductive telescopic roller 13 and the conductive rotating limiter 12 are slidably connected by a slot. The front end of the upper surface of the conductive rotating limiter 12 is equipped with a hydraulic oil injection pipe 24, a conductive slip ring 14 and a stamping machine 2.

[0033] The cleaning roller 8 is located on one side of the upper end of the feeding assembly line support 1. A drive rod 20 is positioned on the side of the cleaning roller 8 near the conductive rotation limiter 12. An elastic silicone wheel 21 is mounted on the outside of the drive rod 20. The elastic silicone wheel 21 is installed to cooperate with two clamping parts 22. When the operator tightens the clamping screw 23, the elastic silicone wheel 21 is clamped by the two clamping parts 22, causing it to deform and change its diameter. This allows plates of different thicknesses to be moved by the drive rod 20 via the elastic silicone wheel 21, enabling the cleaning brushes 9 on the outside of the cleaning roller 8 to clean debris from the surface of the plates, enhancing the effectiveness of the device. The middle part of the elastic silicone wheel 21 is connected to the drive rod... The drive rod 20 and the cleaning roller 8 are connected by a key. Both ends of the elastic silicone wheel 21 are equipped with clamping parts 22. A clamping screw 23 is provided between the two clamping parts 22. The clamping screw 23 is connected to the clamping parts 22 by a thread. The rear ends of the drive rod 20 and the cleaning roller 8 are equipped with pulleys 18. There are two pulleys 18. A transmission belt 19 is installed between the two pulleys 18. The cleaning roller 8 is equipped with cleaning brush bristles 9 on the outside. The cleaning brush bristles 9 can brush the outside of the board to remove magnetic iron filings from the outside of the board. This prevents the stamping machine 2 from stamping the iron filings together with the board, which would cause the iron filings to scratch the board and affect the product quality. At the same time, it also prevents some iron filings from splashing into the eyes of the workers when the stamping machine 2 is stamping the board, thus playing a protective role.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9A stamping machine 2 is installed on the other side of the feeding assembly line bracket 1. The stamping machine 2 is fixedly connected to the feeding assembly line bracket 1. A robot vision camera 15 is installed on the inner side of the stamping machine 2. The robot vision camera 15 is fixedly connected to the stamping machine 2. A control cabinet is installed on the outside of the stamping machine 2, and the control cabinet is connected to the conductive slip ring 14 through a wire. Adjusting screws 7 are installed on both sides of the front and rear end faces of the feeding assembly line bracket 1. The adjusting screws 7 are threadedly connected to the feeding assembly line bracket 1. One end of the adjusting screw 7 is rotatably connected to the limit mounting bracket 6 through a bearing. There are two lower pressure mounting plates 5. A lower pressure roller 10 is installed between the two lower pressure mounting plates 5 to make them cooperate. The anti-splash roller 11 can press the plate tightly to prevent it from jumping and ensure stable transport of the plate. The lower pressure roller 10 is rotatably connected to the lower pressure mounting plate 5 through bearings. The anti-splash roller 11 is installed on the outside of the lower pressure roller 10 and is fixedly connected to the lower pressure roller 10. Conveyor rollers 17 are installed on both sides inside the feeding assembly line bracket 1. The conveyor rollers 17 are rotatably connected to the feeding assembly line bracket 1 through bearings. There are two conveyor rollers 17, and a conveyor belt 16 is set between the two conveyor rollers 17. A feeding motor 3 is installed on one side of the front end face of the feeding assembly line bracket 1 and is fixedly connected to the feeding assembly line bracket 1. The feeding motor 3 is connected to the conveyor roller 17 through a coupling.

[0035] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The limiting mounting bracket 6 is welded to the insulating transverse mounting plate 4. The insulating transverse mounting plate 4 can serve as insulation to prevent weak current from coming into contact with the workers' limbs and enhance the safety of the device. The pressing mounting plate 5 is welded to the insulating transverse mounting plate 4. The conductive rotating limiting component 12 is rotatably connected to the insulating transverse mounting plate 4 through a bearing. The cleaning roller 8 is rotatably connected to the feeding assembly line bracket 1 through a bearing. The drive rod 20 is rotatably connected to the feeding assembly line bracket 1 through a bearing.

[0036] Working Principle: During operation, the operator places the sheet metal on the upper end of the conveyor belt 16. Then, the operator turns the adjusting screw 7 to adjust the position of the limit mounting bracket 6. The feeding motor 3 then drives the conveyor roller 17 to rotate, causing the sheet metal to move on the upper end of the conveyor belt 16. At this time, the sheet metal is located below the anti-splash roller 11, which limits the longitudinal position of the sheet metal. Simultaneously, the front and rear end faces of the sheet metal contact the conductive telescopic roller component 13. At this point, the control cabinet of the stamping machine 2 emits a weak current. This weak current passes through the wire, conductive slip ring 14, conductive rotation limit component 12, conductive telescopic roller component 13, sheet metal, conductive slip ring 14, and wire, finally returning to the control cabinet. The control cabinet then obtains the position information of the sheet metal and proceeds with the stamping process. In the positioning process, when the initial end of the sheet metal is transported to the lower end of the robot vision camera 15, the robot vision camera 15 detects the mark on the upper surface of the sheet metal. Then, the robot vision camera 15 sends a signal to the control cabinet of the stamping machine 2, indicating that the sheet metal has reached the stamping position. The stamping machine 2 then stamps the sheet metal. When the sheet metal has finished transporting on the upper end of the conveyor belt 16, the end of the sheet metal is no longer in contact with the conductive telescopic roller 13, preventing the weak current from being transmitted back to the control cabinet. At this time, the control cabinet receives the end position signal of the sheet metal. When the set of conductive telescopic rollers 13 closest to the stamping machine 2 separates from the sheet metal, it indicates that the sheet metal has reached the limit position, and the stamping machine 2 stops stamping to prevent the sheet metal from jumping up and accidentally injuring the staff. During the transport of the sheet metal, the upper surface of the sheet metal is in contact with the elastic silicone. When wheel 21 contacts the sheet metal, the movement of the sheet metal causes the elastic silicone wheel 21 to rotate. This causes the drive rod 20 to drive the cleaning roller 8 to rotate via pulley 18 and transmission belt 19, allowing the cleaning brush bristles 9 to scrub the sheet metal. The device is equipped with a conductive rotation limiter 12, which, in conjunction with the conductive telescopic roller 13, can clamp and fix both sides of the sheet metal, preventing vibration during stamping and thus avoiding positional shifts in subsequent stamping processes. This enhances the stability of the sheet metal, prevents wobbling, and ensures high product precision. The installation of a conductive slip ring 14 allows a weak current to pass through the sheet metal, the conductive telescopic roller 13, the conductive rotation limiter 12, and the wires, transmitting it to the control cabinet of the stamping machine 2. This facilitates the control cabinet's detection of the final state of the sheet metal. At the end position, when the remaining sheet material is insufficient to stamp a qualified product, the end of the sheet material does not contact the conductive telescopic roller 13. This prevents the sheet material, conductive telescopic roller 13, conductive rotary limiter 12, wires, and the control cabinet of the stamping machine 2 from forming a closed loop. This allows the control cabinet of the stamping machine 2 to detect insufficient sheet material, and the stamping machine 2 stops stamping the remaining sheet material, preventing sheet material from splashing onto workers and causing irreparable injury. The conductive telescopic roller 13 not only provides conductivity but also supports and limits the sheet material. Simultaneously, workers can add hydraulic oil to the conductive rotary limiter 12 through the hydraulic oil filling pipe 24, causing the conductive telescopic roller 13 to extend.The extension of the conductive telescopic roller 13 is then adjusted to allow the device to clamp and limit plates of various widths, enhancing its practicality. The installation of the elastic silicone wheel 21, in conjunction with the two clamping components 22, allows the elastic silicone wheel 21 to be clamped by the two clamping components 22 when the operator tightens the clamping screw 23, causing the elastic silicone wheel 21 to deform and change its diameter. This allows plates of different thicknesses to be moved by the drive rod 20 via the elastic silicone wheel 21, enabling the cleaning brush 9 on the outside of the cleaning roller 8 to clean debris from the plate, enhancing the device's effectiveness. The cleaning brush 9 can also scrub the outside of the plate, removing magnetic iron filings and preventing the stamping machine 2 from stamping the plate with the iron filings, which could scratch the plate and affect product quality. It also prevents iron filings from splashing into the operator's eyes during stamping, providing protection.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A workpiece automatic positioning and protection device in a robot vision-guided punching production line, comprising a feeding assembly line support (1), characterized in that: An insulating transverse mounting plate (4) is provided at both ends of the upper surface of the feeding line support (1). A limiting mounting bracket (6) is installed on the side of the insulating transverse mounting plate (4) away from the feeding line support (1). A pressing mounting plate (5) is installed at the upper end of the insulating transverse mounting plate (4). A conductive rotation limiting component (12) is installed at the lower end of the insulating transverse mounting plate (4). A conductive slip ring (14) is installed at the upper end of the conductive rotation limiting component (12). The conductive slip ring (14) is fixedly connected to the conductive rotation limiting component (12). A conductive telescopic roller component (13) is installed on the outside of the conductive rotation limiting component (12). The conductive telescopic roller component (13) and the conductive rotation limiting component (12) are slidably connected through a slot. A hydraulic oil filling pipe (24) is installed at the front end of the upper surface of the conductive rotation limiting component (12). A cleaning roller (8) is located on one side of the upper end of the feeding line support (1). A drive rod (20) is located on the side of the cleaning roller (8) near the conductive rotation limiter (12). An elastic silicone wheel (21) is located on the outside of the drive rod (20). The middle part of the elastic silicone wheel (21) is connected to the drive rod (20) by a key. Clamping parts (22) are installed at both ends of the elastic silicone wheel (21). A clamping screw (23) is provided between the two clamping parts (22). The clamping screw (23) is connected to the clamping parts (22) by a thread. A pulley (18) is provided at the rear end of both the drive rod (20) and the cleaning roller (8). There are two pulleys (18). A transmission belt (19) is installed between the two pulleys (18). A cleaning brush (9) is provided on the outside of the cleaning roller (8).

2. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 1, characterized in that: A stamping machine (2) is installed on the other side of the feeding assembly line bracket (1). The stamping machine (2) is fixedly connected to the feeding assembly line bracket (1). A robot vision camera (15) is installed on the inner side of the stamping machine (2). The robot vision camera (15) is fixedly connected to the stamping machine (2). A control cabinet is provided on the outside of the stamping machine (2), and the control cabinet is connected to the conductive slip ring (14) through a wire.

3. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 1, characterized in that: There are two pressure mounting plates (5), and a pressure roller (10) is installed between the two pressure mounting plates (5). The pressure roller (10) is rotatably connected to the pressure mounting plate (5) through a bearing. An anti-splash roller (11) is installed on the outside of the pressure roller (10), and the anti-splash roller (11) is fixedly connected to the pressure roller (10).

4. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 1, characterized in that: The feeding assembly line bracket (1) has two conveyor rollers (17) installed on both sides inside. The conveyor rollers (17) are rotatably connected to the feeding assembly line bracket (1) through bearings. There are two conveyor rollers (17), and a conveyor belt (16) is provided between the two conveyor rollers (17).

5. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 4, characterized in that: A feeding motor (3) is installed on one side of the front end face of the feeding assembly line bracket (1). The feeding motor (3) is fixedly connected to the feeding assembly line bracket (1). The feeding motor (3) is connected to the conveyor roller (17) through a coupling.

6. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 1, characterized in that: The limiting mounting bracket (6) is welded to the insulating transverse mounting plate (4), the pressing mounting plate (5) is welded to the insulating transverse mounting plate (4), and the conductive rotating limiting component (12) is rotatably connected to the insulating transverse mounting plate (4) through a bearing.

7. The automatic workpiece positioning and protection device in a robot vision-guided punching production line according to claim 1, characterized in that: The cleaning roller (8) is rotatably connected to the feeding line support (1) via bearings, and the drive rod (20) is rotatably connected to the feeding line support (1) via bearings.

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