Punching part corner punching device

Abstract

The utility model discloses a punching part corner punching device which comprises a base, a punching bottom die is arranged above the base, a punching top die is arranged above the punching bottom die, conveying assemblies are arranged on the two sides of the punching bottom die, each conveying assembly is provided with a power unit, and a limiting structure is arranged on the front face of each conveying assembly. The conveying assembly comprises a shell, a top wheel and a lower wheel. The shell is arranged on the side face of the punching bottom die. The utility model relates to the technical field of power distribution cabinet production, according to the punching part corner punching device, through cooperation among the top wheel, the lower wheel and the conveying assembly, a workpiece can be conveyed to a station, namely between the punching bottom die and the punching top die, the workpiece does not need to be manually supported by a worker, the problem that the hand of the worker is injured due to misoperation is solved, and the production efficiency is improved. And meanwhile, the overall design is simple, the cost is lower compared with large-scale equipment, and the device is suitable for small-batch production or small-factory use.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet manufacturing technology, specifically a device for punching holes at the corners of stamped parts. Background Technology

[0002] In the field of metal processing, punching holes at the corners of stamped parts is a key process in the production of thin-walled metal products such as power distribution cabinets and chassis shells. To facilitate assembly and installation of other structures, holes need to be punched at the corners of the power distribution cabinet shell.

[0003] However, traditional stamping parts are usually punched at the corners using large automated equipment or manually. While large equipment is highly automated, it is very expensive and not suitable for small-batch production or small factories. Manual operation poses certain risks, especially when punching at the corners, which can easily cause hand injuries. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a punching device for the corners of stamped parts. This solves the problem that traditional punching of corners of stamped parts is generally done by large-scale automated equipment or by manual hand-held operation. While large-scale equipment has a high degree of automation, it is very expensive and not suitable for small-batch production or small factories. Manual hand-held operation poses certain dangers, especially when punching corners, which can easily cause hand injuries to workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a punching device for corners of stamped parts, comprising a base, a punching bottom die disposed above the base, a punching top die disposed above the punching bottom die, conveying components disposed on both sides of the punching bottom die, a power unit disposed on the conveying components, and a limit structure disposed on the front of the conveying components; the conveying components comprise a housing, top wheels, and a lower wheel; the housing is disposed on the side of the punching bottom die, and a plurality of top wheels are rotatably connected to the front of the housing via sealed bearings, and a lower wheel is rotatably connected to the housing via sealed bearings below the top wheels, the top of the lower wheel being flush with the top of the punching bottom die.

[0006] Preferably, the power unit includes a sprocket, a chain, and a servo motor; a plurality of sprockets are provided, each fixedly connected to one end of the top wheel extending into the housing, the plurality of sprockets are connected by chain drive, and the end of one sprocket passes through the back of the housing through a sealed bearing and is fixedly connected to a servo motor, the outer wall of the servo motor being fixedly connected to the back of the housing.

[0007] Preferably, the limiting structure includes a bracket, axles, and limiting wheels; a plurality of axles are fixedly connected to the side of the bracket near the punching bottom die, and the outer wall of the axles is rotatably connected to the limiting wheels through bearings.

[0008] Preferably, a slide rail is slidably engaged in the bottom groove of the bracket, the slide rail is fixedly connected to the top of the base, a fixing bolt is abutted against the top of the slide rail, the fixing bolt passes through the surface of the bracket and is threadedly connected to the bracket.

[0009] Preferably, a base is attached to the back of the punching bottom die, a frame is fixedly connected to the bottom of the base, the frame is fixedly connected to the top of the base, a number of limiting rods fixed to the front of the base are inserted into the inside of the punching bottom die, the limiting rods are fixedly connected to the punching bottom die by countersunk bolts, and a hydraulic cylinder is fixedly connected to the top of the punching top die by bolts, the hydraulic cylinder is fixedly connected to the top of the base by a fixing bracket.

[0010] Preferably, an electromagnet is embedded in the top of the punching die, and the top of the electromagnet is flush with the top of the punching die.

[0011] This utility model provides a device for punching holes at the edges and corners of stamped parts. It offers the following advantages: This device, through the cooperation of the top wheel, lower wheel, and conveying assembly, can transport the workpiece to the workstation, specifically between the punching bottom die and the punching top die, eliminating the need for manual support and preventing hand injuries due to improper operation. Furthermore, its simple overall design results in lower costs compared to large-scale equipment, making it suitable for small-batch production or small factories.

[0012] By coordinating the bracket, slide rail, electromagnet, and limit wheel, the workpiece can be better limited to ensure stable conveying. On the other hand, the workpiece can be magnetically attracted to the surface of the punching die, which is beneficial for fixing the workpiece and ensuring the accuracy of punching. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the inner shell, top wheel, and lower wheel;

[0015] Figure 3 for Figure 1 Structural diagram of the central support, axle, and limiting wheel;

[0016] Figure 4 for Figure 1 Schematic diagram of the punching die, frame, and hydraulic cylinder;

[0017] Figure 5 for Figure 4 A schematic diagram of the structure of the punching die, base, and electromagnet.

[0018] In the diagram: 1. Base; 2. Punching bottom die; 3. Punching top die; 4. Bracket; 5. Slide rail; 6. Fixing bolt; 7. Axle; 8. Limiting wheel; 9. Outer shell; 10. Top wheel; 11. Lower wheel; 12. Sprocket; 13. Chain; 14. Servo motor; 15. Frame; 16. Hydraulic cylinder; 17. Fixing frame; 18. Base; 19. Limiting rod; 20. Countersunk bolt; 21. Electromagnet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figure 1-5 As can be seen, the stamping part corner punching device in this case includes a base 1, a punching bottom die 2 is arranged above the base 1, a punching top die 3 is arranged above the punching bottom die 2, and a conveying assembly is arranged on both sides of the punching bottom die 2. The conveying assembly is equipped with a power unit, and a limit structure is arranged on the front of the conveying assembly. The conveying assembly includes a housing 9, a top wheel 10 and a lower wheel 11. The housing 9 is arranged on the side of the punching bottom die 2. Several top wheels 10 are rotatably connected to the front of the housing 9 through sealed bearings. The lower wheel 11 is rotatably connected to the housing 9 through sealed bearings below the top wheels 10. The top of the lower wheel 11 is flush with the top of the punching bottom die 2.

[0021] In the specific implementation process, it is worth noting that the punching bottom die 2 and punching top die 3 are set up in combination to punch the corners of thin-walled metal stamping parts, such as the punching of the bent part of the distribution cabinet shell. The conveying component transports the workpiece between the punching bottom die 2 and punching top die 3. After punching, the workpiece is conveyed out. The workpiece can be manually placed into the conveying component for loading, and the punched workpiece can be manually removed during unloading. The position of the workpiece relative to the punching bottom die 2 and punching top die 3 is positioned manually by observation or by setting additional positioning structures to ensure that the punching position is appropriate. For example, if the operator observes that the workpiece position is appropriate, the conveying component can be stopped immediately, and the punching top die 3 can be pressed down to cooperate with the punching bottom die 2 to complete the punching. The material flushed off falls naturally and can be collected periodically. The top wheel 10 and the lower wheel 11 clamp the corners of the thin-walled metal stamping parts, and the limiting structure ensures stable feeding of the workpieces. The top wheel 10 consists of a shaft and a wheel, which are detachably connected. The purpose of this design is to allow the top wheel 10 to be replaced with a suitable size according to the wall thickness of the thin-walled metal stamping parts, ensuring that the top wheel 10 and the lower wheel 11 can effectively clamp and transport the corners of the thin-walled metal stamping parts. At the same time, the lower wheel 11 remains unchanged, ensuring that the top of the lower wheel 11 is flush with the top of the punching die 2, ensuring that there is no jamming. Of course, the edge of the punching die 2 can be set as a slope or arc surface to facilitate the smooth transport of the thin-walled metal stamping parts.

[0022] In one feasible embodiment, the power unit includes sprockets 12, chains 13, and servo motors 14; a plurality of sprockets 12 are provided, each fixed to one end of the top wheel 10 extending into the housing 9, the plurality of sprockets 12 are connected by chains 13, and the end of one sprocket 12 passes through the back of the housing 9 through a sealed bearing and is fixedly connected to the servo motor 14, the outer wall of the servo motor 14 being fixed to the back of the housing 9.

[0023] In the specific implementation process, it is worth noting that the combined transmission structure of sprocket 12, chain 13, and servo motor 14 can provide a stable and adjustable driving force for conveying stamped parts. Multiple sprockets 12 are respectively fixedly installed on the shaft ends of the top wheel 10 extending into the housing 9, and are interconnected via chain 13 to form a synchronous drive. This chain transmission method ensures that the top wheels 10 rotate at the same speed, so that the stamped parts are subjected to uniform force during conveying, avoiding deviation or jamming caused by speed differences. The specific model of the servo motor 14 is not limited, but it must be ensured that the servo motor 14 has high-precision speed adjustment and position control functions, and can be adapted to different stamped parts. The output speed and torque can be flexibly adjusted according to the material, thickness, and drilling process requirements to achieve precise control of the conveying speed of the stamped parts. For example, for thin or easily deformable metal thin-walled stamped parts, the conveying speed can be reduced to reduce impact force, while for thicker workpieces, the speed can be appropriately increased to improve processing efficiency. The speed and whether the servo motor 14 is working can be manually controlled to better adapt to the drilling requirements. The tension of the chain 13 can also be adjusted by an additional adjustment device to ensure that the transmission system maintains stable operation for a long time, providing reliable power support for the corner drilling operation of stamped parts, and ensuring the accuracy of the drilling position and the stability of the processing quality.

[0024] In one feasible embodiment, the limiting structure includes a bracket 4, axles 7, and limiting wheels 8; a plurality of axles 7 are fixedly connected to the side of the bracket 4 near the punching bottom die 2, and the outer wall of the axles 7 is rotatably connected to the limiting wheels 8 through bearings.

[0025] In the specific implementation process, it is worth noting that the design of the bracket 4 and the wheel axle 7 is for installing the limiting wheel 8. The limiting wheel 8 is set on the front of the metal thin-walled stamping part to ensure that the corners of the metal thin-walled stamping part are always between the top wheel 10 and the lower wheel 11, so as to achieve effective conveying.

[0026] Furthermore, a slide rail 5 is slidably engaged in the bottom groove of the bracket 4. The slide rail 5 is fixed to the top of the base 1, and a fixing bolt 6 is pressed against the top of the slide rail 5. The fixing bolt 6 passes through the surface of the bracket 4 and is threadedly connected to the bracket 4.

[0027] In the specific implementation process, it is worth noting that the cooperation between the slide rail 5 and the bracket 4 enables the position of the limiting wheel 8 to be adjusted, which better copes with workpieces of different wall thicknesses and ensures that the limiting wheel 8 effectively limits the workpiece surface. The fixing bolt 6 fixes the slide rail 5 and the bracket 4, which is convenient to adjust and effective to fix.

[0028] In one feasible embodiment, a base 18 is attached to the back of the punching bottom die 2, and a frame 15 is fixedly connected to the bottom of the base 18. The frame 15 is fixedly connected to the top of the base 1. Several limiting rods 19 fixed to the front of the base 18 are inserted into the inside of the punching bottom die 2. The limiting rods 19 are fixedly connected to the punching bottom die 2 by countersunk bolts 20. A hydraulic cylinder 16 is fixedly connected to the top of the punching top die 3 by bolts. The hydraulic cylinder 16 is fixedly connected to the top of the base 18 by a fixing bracket 17.

[0029] In the specific implementation process, it is worth noting that the frame 15 is equipped with connecting parts at the positions corresponding to the base 18 and the outer shell 9, which can be fixed by bolts or welding. The design of the limit rod 19 and the countersunk bolt 20 is conducive to fixing the punching bottom die 2 and the base 18. The design of the countersunk bolt 20 ensures that the top of the punching bottom die 2 is flat and will not cause jamming to the workpiece. The specific model of the hydraulic cylinder 16 is not limited. It can be driven by an external hydraulic and control system or manually controlled.

[0030] In one feasible embodiment, an electromagnet 21 is embedded in the top of the punching die 2, and the top of the electromagnet 21 is flush with the top of the punching die 2.

[0031] In the specific implementation process, it is worth noting that the specific model of electromagnet 21 is not limited, as long as it meets the usage requirements of this embodiment. Its purpose is to assist in fixing the workpiece. It can be opened and closed manually. For example, when the position of the workpiece is observed to be appropriate, the servo motor 14 is stopped, and the power of electromagnet 21 is turned on to attract and fix the workpiece. Then, through the hydraulic control system, the hydraulic cylinder 16 is controlled to work, driving the punching die 3 to move downward to punch the workpiece.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for punching corners of a stamped part, comprising a base (1), characterized in that: A punching bottom mold (2) is provided above the base (1), a punching top mold (3) is provided above the punching bottom mold (2), a conveying assembly is provided on both sides of the punching bottom mold (2), the conveying assembly is provided with a power unit, and a limit structure is provided on the front of the conveying assembly. The conveying assembly includes a housing (9), a top wheel (10), and a bottom wheel (11). The outer shell (9) is disposed on the side of the punching bottom mold (2). Several top wheels (10) are rotatably connected to the front of the outer shell (9) via a sealed bearing. A lower wheel (11) is rotatably connected to the outer shell (9) via a sealed bearing below the top wheel (10). The top of the lower wheel (11) is flush with the top of the punching bottom mold (2).

2. The punching device for corners of stamped parts according to claim 1, characterized in that: The power unit includes a sprocket (12), a chain (13), and a servo motor (14). Several sprockets (12) are provided, each fixed to one end of the top wheel (10) extending into the housing (9). Several sprockets (12) are connected by a chain (13). The end of one sprocket (12) passes through the back of the housing (9) through a sealed bearing and is fixedly connected to a servo motor (14). The outer wall of the servo motor (14) is fixed to the back of the housing (9).

3. The punching device for corners of stamped parts according to claim 2, characterized in that: The limiting structure includes a bracket (4), a wheel axle (7), and a limiting wheel (8); The bracket (4) has several axles (7) fixed to one side near the punching bottom mold (2), and the outer wall of the axle (7) is rotatably connected to a limit wheel (8) through a bearing.

4. The punching device for corners of stamped parts according to claim 3, characterized in that: The bottom groove of the bracket (4) is slidably engaged with a slide rail (5), the slide rail (5) is fixed to the top of the base (1), and the top of the slide rail (5) is abutted against a fixing bolt (6), the fixing bolt (6) penetrates the surface of the bracket (4) and is threadedly connected to the bracket (4).

5. The punching device for corners of stamped parts according to claim 4, characterized in that: The back of the punching bottom die (2) is attached to a base (18), and a frame (15) is fixedly connected to the bottom of the base (18). The frame (15) is fixed to the top of the base (1). Several limiting rods (19) fixed to the front of the base (18) are inserted into the inside of the punching bottom die (2). The limiting rods (19) are fixedly connected to the punching bottom die (2) by countersunk bolts (20). A hydraulic cylinder (16) is fixedly connected to the top of the punching top die (3) by bolts. The hydraulic cylinder (16) is fixedly connected to the top of the base (18) by a fixing bracket (17).

6. The punching device for corners of stamped parts according to claim 5, characterized in that: An electromagnet (21) is embedded in the top of the punching die (2), and the top of the electromagnet (21) is flush with the top of the punching die (2).

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