Automatic feeding device for a punching apparatus

Abstract

The utility model discloses a stamping equipment automatic feeding device installs the material discharge air cylinder at the right side of stamping processing position, and installs the material discharge slide at the left side. The utility model discloses a stamping equipment automatic feeding device installs the feeding air cylinder on the front of stamping processing position, and the feeding air cylinder promotes the workpiece to move to the direction of stamping die, and the same relies on the pushing force of transmission between workpieces to push the workpiece into stamping die. In the working process of feeding device, the logic relation of material discharge air cylinder, pushing air cylinder and punch action is controlled by PLC. After the worker places the workpiece on the feeding slide, presses the foot switch and sends the signal, the material discharge air cylinder pushes the workpiece that stamping is completed on the stamping die, and then the feeding air cylinder promotes the workpiece to enter the stamping die, and the punch slider is pressed down, and the stamping action is completed, and one cycle is completed. The utility model realizes the automatic workpiece feeding into the processing area of stamping equipment and automatic discharge, to avoid the work injury accident caused by the hand of worker into the punch, reduce the production injury rate, and improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to a feeding device, specifically an automatic feeding device for stamping equipment, which is used in stamping equipment to automatically feed workpieces into the processing area, and automatically discharge them after stamping. Background Technology

[0002] Stamping is a highly efficient, high-precision, and widely applicable metal processing technology. Existing highly automated machine tools have the function of automatically identifying workpieces and using an automated control system to stop the stamping process in a timely manner, protecting operators. However, for some specific parts, traditional punch presses are still required, with manual feeding, which can easily lead to accidents if not handled carefully. Although safety light curtains can be added to both sides of the slide block to ensure that the operator leaves the stamping area before pressing, this reduces production efficiency.

[0003] Utility model patent application CN 223210361 U discloses an automatic feeding device for a stamping machine, including a feeding mechanism installed on the side of the stamping machine and a positioning mechanism installed on the front of the stamping machine. The feeding mechanism includes a feeding slide and a pushing cylinder located within the feeding slide. A push plate is vertically mounted on the piston rod of the pushing cylinder, thereby pushing the workpiece along the pushing slide towards the stamping processing position. The positioning mechanism consists of a chain, guide rod, guide seat, spring, and positioning block, etc., and performs secondary positioning of the workpiece pushed to the stamping processing position. Along the feeding direction, on the other side of the stamping processing position is a discharge slide, which, similarly, relies on the pushing force transmitted between workpieces to push the processed workpiece out along the discharge slide. This utility model realizes automatic feeding of workpieces into the processing area of ​​the stamping equipment for processing and automatic discharge. However, due to the special shape of some workpieces, the positioning mechanism composed of the chain, guide rod, guide seat, spring, and positioning block cannot achieve secondary positioning, resulting in the stamping accuracy not meeting the requirements. Utility Model Content

[0004] The purpose of this invention is to provide an automatic feeding device for stamping equipment, which automates the feeding, stamping, and unloading processes, thus avoiding injury to personnel. Furthermore, it significantly improves feeding efficiency, thereby increasing production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic feeding device for stamping equipment includes a punch press, a feeding rack on the front side of the punch press, an upper stamping die at the bottom of the punch press slide, a lower die base plate on the operating table below the punch press slide, a lower stamping die on the lower die base plate corresponding to the upper stamping die, discharge slides on the left and right sides of the lower stamping die, a discharge cylinder in the discharge slide on the right side of the lower stamping die, a feeding slide on the front side of the lower stamping die, a baffle on the rear side of the lower stamping die, the feeding slide extending forward, a feeding cylinder at the front end of the feeding slide, a feeding base plate on the feeding rack, the feeding slide on the feeding base plate, and a control box inside the feeding rack.

[0006] Furthermore, the lower die of the stamping is provided with a discharge slide groove corresponding to the discharge slide. The discharge slide is composed of two L-shaped plates arranged opposite each other. The two L-shaped plates are located in the discharge slide groove. The two L-shaped plates are pressed onto the lower die base plate on both sides of the discharge slide groove by several clamping blocks and bolts.

[0007] Furthermore, baffles are provided on both sides of the feeding slide. The baffles are L-shaped and are fixed to the feeding base plate with bolts to prevent the workpiece from shifting left or right when it moves in the feeding slide.

[0008] Furthermore, the horizontal portions of the two L-shaped plates form the base plate of the discharge slide, and the vertical portions of the two L-shaped plates are respectively pressed onto the lower mold base plate on both sides of the discharge slide groove by several clamping blocks and bolts.

[0009] Furthermore, the upper surface of the feeding base plate, the upper surface of the stamping die, and the upper surface of the discharge slide base plate are on the same horizontal plane.

[0010] Furthermore, the pusher cylinder and the feed cylinder are respectively equipped with magnetic switches to detect when the cylinder extends to the correct position and magnetic switches to detect when it retracts to the correct position.

[0011] Furthermore, the discharge cylinder is pressed into the discharge slide by the pressure plate, and the feeding cylinder is pressed into the feeding slide by the pressure plate.

[0012] Furthermore, push plates are vertically mounted on the piston rods of the discharge cylinder and the feed cylinder, respectively.

[0013] Furthermore, a discharge plate is provided on the left side of the discharge chute.

[0014] This utility model's automatic feeding device for stamping equipment enables the automatic feeding of workpieces into the processing area of ​​the stamping equipment for processing and automatic unloading, thereby avoiding work-related injuries caused by workers putting their hands into the punch press, reducing the work-related injury rate, and improving production efficiency. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of this utility model: In the diagram: 1. Punch press; 2. Discharge slide; 3. Punch press slide block; 4. Upper stamping die; 5. Stop plate; 6. Lower stamping die; 7. Discharge cylinder; 8. Lower die base plate; 9. Stop plate; 10. Feed slide; 11. Feed cylinder; 12. Control box; 13. Feed rack; 14. Unloading plate. Detailed Implementation

[0016] The technical solutions of the present invention will be fully described below with reference to the accompanying drawings of the embodiments.

[0017] An automatic feeding device for stamping equipment, such as Figure 1 As shown, the device includes a punch press 1, a feeding rack 13 on the front side of the punch press 1, an upper punching die 4 at the bottom of the punch press slide 3, a lower die base plate 8 on the operating table below the punch press slide 3, a lower punching die 6 on the lower die base plate 8 corresponding to the upper punching die 4, a discharge slide 2 on the left and right sides of the lower punching die 6, the discharge slide 2 on the left and right sides being arranged correspondingly, a discharge cylinder 7 in the discharge slide 2 on the right side of the lower punching die 6, a feeding slide 10 on the front side of the lower punching die 6, a baffle plate 5 on the rear side of the lower punching die 6, the feeding slide 10 extending forward, a feeding cylinder 11 at the front end of the feeding slide 10, a feeding base plate on the feeding rack 13, the feeding slide 10 on the feeding base plate, and a control box 12 inside the feeding rack 13.

[0018] The lower die 6 of the stamping die is provided with a discharge slide groove corresponding to the discharge slide 2. The discharge slide 2 is composed of two L-shaped plates arranged opposite each other. The two L-shaped plates are located in the discharge slide groove. The horizontal part of the two L-shaped plates forms the bottom plate of the discharge slide 2. The vertical part of the two L-shaped plates is pressed onto the lower die bottom plate 8 on both sides of the discharge slide groove by several clamping blocks and bolts.

[0019] The feeding slide 10 is provided with baffles 9 on both sides. The baffles 9 are L-shaped. The horizontal part of the L-shaped baffles 9 is fixed to the feeding base plate by bolts, so as to prevent the workpiece from shifting left and right when it moves in the feeding slide 10.

[0020] The upper surface of the feeding base plate, the upper surface of the stamping die 6, and the upper surface of the discharge slide base plate are on the same horizontal plane.

[0021] The pusher cylinder 7 and the feed cylinder 11 are respectively equipped with magnetic switches to detect when the cylinder extends to the correct position and magnetic switches to detect when it retracts to the correct position.

[0022] The discharge cylinder 7 is pressed into the discharge slide 2 by a pressure plate, and the feeding cylinder 11 is pressed into the feeding slide 10 by a pressure plate.

[0023] Push plates are vertically mounted on the piston rods of the discharge cylinder 7 and the feeding cylinder 11, respectively.

[0024] Furthermore, a discharge plate 14 is provided on the left side of the discharge chute.

[0025] In this invention: the discharge slide is installed in a recessed groove on the left side of the lower die base plate 8 of the punch press to ensure installation accuracy, and is fixedly connected to the lower die base plate 8 with bolts. The discharge cylinder 7 is installed on the right side of the lower die base plate 8 of the punch press, and is pressed into the discharge slide by a pressure plate, so that the workpiece pushed out by the discharge cylinder 7 is discharged along the discharge slide 2. The feeding slide 10 is formed by two baffles 9 installed in the feeding base plate on the front side of the lower die base plate 8 of the punch press, and the baffles 9 are fixedly connected to the lower die base plate 8 with countersunk bolts. The feeding cylinder 11 is installed at the front end of the feeding slide 10, and is pressed into the feeding slide 10 by a pressure plate. The feeding cylinder 11 pushes the workpiece, so that the workpiece on the slide moves towards the stamping position by the transmitted pushing force. When the cylinder extends to its position, the workpiece moves exactly to the position where the stamping lower die 6 contacts the baffle 9. L-shaped angle steels are installed on both sides of the feeding slide 10 and the discharge slide 2, and are fixedly connected to the base plate by bolts. They serve as guide and limiting plates on both sides of the slide to prevent the workpiece from shifting during the movement under the action of the mutual pushing force.

[0026] The usage process of this utility model is as follows: 1. First, the workpiece is manually placed in the feeding chute 10, and then a foot switch is activated to send a signal. The workpiece that has completed the stamping process is pushed out of the stamping die 6 by the discharge cylinder 7, ensuring that the workpiece on the stamping die is emptied. Relying on the pushing force transmitted between the workpieces, the processed workpiece is discharged along the discharge chute 2.

[0027] 2. Then, the feeding cylinder 11 of the automatic feeding device of the stamping equipment pushes the workpiece along the feeding slide 10 towards the lower stamping die 6. Relying on the thrust of the feeding cylinder transmitted between the workpieces, the workpiece to be stamped is pushed into the lower stamping die 6 along the feeding slide 10. Finally, the press slide 3 drives the upper stamping die 4 to stamp the workpiece downwards, and the equipment completes one cycle.

[0028] 3. The workpiece is positioned along the feeding direction by a baffle plate 5 located on the rear side of the lower die 6 facing the feeding slide. The workpiece is limited perpendicular to the feeding direction by baffle plates 9 installed on both sides of the feeding slide 10.

[0029] 4. The logical relationship between the actions of the discharge cylinder 7, the feeding cylinder 11, and the punch slide 3 during the operation of the feeding device is controlled by a PLC system installed in the control box 12. The discharge cylinder 7 is equipped with a magnetic switch for extending and retracting. When the PLC simultaneously receives signals that the discharge cylinder 7 has retracted and the punch slide is at its top dead center, pressing the foot switch will extend the cylinder push plate, pushing the workpiece out of the lower die 6. When the PLC receives the signal that the discharge cylinder 7 has retracted, it controls the feeding cylinder 11 to extend and push the workpiece into the lower die 6. When the PLC receives signals that the feeding cylinder 11 has extended and retracted and that the punch slide 3 is at its top dead center, it sends a pressing command to the punch slide 3 to complete the punching action. If the PLC does not receive the corresponding action signal within the specified time, it determines that the feeding device has malfunctioned, automatically triggering an emergency stop to prevent scrap and ensure worker safety.

[0030] It should be noted that the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An automatic feeding device for stamping equipment, characterized in that, The device includes a punch press, a feeding rack on the front side of the punch press, an upper punching die at the bottom of the punch press slide, a lower die base plate on the operating table below the punch press slide, a lower punching die on the lower die base plate corresponding to the upper punching die, discharge slides on the left and right sides of the lower punching die, a discharge cylinder in the discharge slide on the right side of the lower punching die, a feeding slide on the front side of the lower punching die, a baffle on the rear side of the lower punching die, the feeding slide extending forward, a feeding cylinder at the front end of the feeding slide, a feeding base plate on the feeding rack, the feeding slide on the feeding base plate, and a control box inside the feeding rack.

2. The automatic feeding device for stamping equipment according to claim 1, characterized in that, The lower die of the stamping is provided with a discharge slide groove corresponding to the discharge slide. The discharge slide is composed of two L-shaped plates arranged opposite each other. The two L-shaped plates are located in the discharge slide groove. The two L-shaped plates are pressed onto the lower die base plate on both sides of the discharge slide groove by several clamping blocks and bolts.

3. The automatic feeding device for stamping equipment according to claim 1, characterized in that, Baffles are provided on both sides of the feeding slide to prevent the workpiece from shifting left or right when it moves within the feeding slide.

4. The automatic feeding device for stamping equipment according to claim 2, characterized in that, The horizontal parts of the two L-shaped plates form the base plate of the discharge slide, and the vertical parts of the two L-shaped plates are respectively pressed onto the lower mold base plate on both sides of the discharge slide groove by several clamping blocks and bolts.

5. The automatic feeding device for stamping equipment according to claim 4, characterized in that, The upper surface of the feeding base plate, the upper surface of the stamping die, and the upper surface of the discharge slide base plate are on the same horizontal plane.

6. The automatic feeding device for stamping equipment according to claim 1, characterized in that, The push cylinder and the feed cylinder are equipped with magnetic switches to detect when the cylinder extends to the correct position and when it retracts to the correct position.

7. The automatic feeding device for stamping equipment according to claim 1, characterized in that, The discharge cylinder is pressed into the discharge slide by the pressure plate, and the feeding cylinder is pressed into the feeding slide by the pressure plate.

8. The automatic feeding device for stamping equipment according to claim 1, characterized in that, Push plates are vertically mounted on the piston rods of the discharge cylinder and the feeding cylinder, respectively.

9. The automatic feeding device for stamping equipment according to claim 1, characterized in that, A discharge plate is located on the left side of the discharge chute.

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