A power electronic component punching device

Abstract

The utility model discloses a kind of power electronic components punching equipment, belong to electronic component processing equipment technical field. Including support platform, rack;Punching rod is opened in recess, recess is slidably provided with adjusting rod, and the lower end of adjusting rod is flush with the lower end of punching rod;Rack below is provided with the lifting assembly fixedly connected on ground, lifting assembly is fixedly connected with the adjusting cylinder that can be inserted into through hole upwards;The inside diameter of adjusting cylinder corresponds with the diameter of adjusting rod. When needing to process smaller aperture, just through lifting assembly, adjusting cylinder is accurately raised and inserted into through hole, and releasing adjusting rod, so that the diameter of adjusting cylinder inner wall and adjusting rod forms new, smaller blanking gap, avoid the risk of time waste and centring inaccuracy caused by repeatedly disassembling and assembling complete mould.

Description

Technical Field

[0001] This utility model provides a punching device for power electronic components, belonging to the technical field of electronic component processing equipment, and particularly relates to a punching device for substrates. Background Technology

[0002] In the manufacturing process of power electronic components, the core component substrate requires precision punching. These holes are mainly used to form pin vias for connecting power chips, provide heat dissipation paths, or achieve mechanical fixation. Currently, conventional punching equipment typically employs the principle of stamping, and its basic structure includes a punching rod as the upper die and a die cavity through hole that matches the punching rod as the lower die. During processing, the operator precisely places the substrate to be processed between the upper and lower dies, and the drive mechanism (such as a hydraulic or mechanical pressure mechanism) applies a vertically downward punching force, driving the punching rod to punch the substrate, causing the material to undergo shear deformation until it breaks. The scrap falls from the through hole below, thereby forming the required holes on the substrate.

[0003] However, the existing punching equipment has a significant limitation: the diameter of the punching rod and the size of the die through hole are fixed for the same machine. This means that the hole diameter that the machine can punch in a single setup is extremely limited. To achieve a second hole diameter on the same substrate, the existing solution requires operators to disassemble and replace the entire set of punching rods and dies that match the target hole diameter. This operation is not only cumbersome and time-consuming, severely restricting production efficiency, but also makes it difficult to ensure concentricity between the upper and lower dies during repeated disassembly and assembly. This can easily lead to a decrease in punching quality, die damage, or even substrate scrap due to misalignment. Therefore, there is an urgent need for a new type of punching equipment that can quickly and conveniently punch two hole diameters while ensuring processing accuracy. Utility Model Content

[0004] The technical problem this invention aims to solve is that the existing punching equipment produces holes with extremely limited diameter specifications. It requires disassembling and assembling the entire punching rod and die to process a second hole diameter, and repeated disassembly and assembly are not conducive to the concentricity of the upper and lower dies.

[0005] To solve the above problems, the proposed technical solution is as follows: a punching device for power electronic components, including a support platform, on which a placement rack for placing a substrate is fixedly connected; an L-shaped fixing plate is fixedly installed on the placement rack, and a positioning component for fixing the substrate is connected inside the fixing plate; a through hole is opened in the placement rack, and an L-shaped bracket fixedly connected to the ground is provided on the rear side of the placement rack; a punching rod corresponding to the through hole is provided inside the bracket, and a power component for driving the punching rod to move up and down is connected to the bracket;

[0006] The diameter of the punch rod corresponds to the diameter of the through hole; a groove is provided inside the punch rod, and an adjusting rod is slidably arranged in the groove, with the lower end of the adjusting rod flush with the lower end of the punch rod; a lifting assembly is fixedly connected to the ground below the placement frame, and an adjusting cylinder that can be inserted upward into the through hole is fixedly connected to the lifting assembly; the inner diameter of the adjusting cylinder corresponds to the diameter of the adjusting rod.

[0007] As an improvement, the power assembly includes a hydraulic rod and a support plate. The hydraulic rod is mounted on a bracket, and the support plate is fixedly connected to the working end of the hydraulic rod. The support plate is also fixedly connected to the punching rod.

[0008] As an improvement, the adjusting rod is provided with screw holes, and the punching rod is provided with fastening screws that can fix the adjusting rod and the punching rod together through the screw holes.

[0009] As an improvement, the screw holes are provided in two vertically distributed holes, and the fastening screws are located away from the lower end of the punch rod.

[0010] As an improvement, the lifting assembly includes an electric telescopic rod and a lifting plate; the electric telescopic rod is fixedly connected to the ground, and the lifting plate is fixedly connected to the working end of the electric telescopic rod; a connecting block is fixedly connected to the lower end of the adjusting cylinder, the connecting block has a hole that penetrates the adjusting cylinder, and the lifting plate is fixedly connected to the connecting block through a connecting rod.

[0011] As an improvement, the positioning component includes a screw and a pressure plate; the screw is threadedly connected to the fixed plate, the pressure plate is fixedly connected to the lower end of the screw, and an elastic pad is provided at the lower end of the pressure plate.

[0012] The beneficial effects of this utility model are:

[0013] The core improvement of this equipment lies in the design of an adjustable composite mold system: a smaller diameter adjusting rod is slidably installed inside the punching rod, and an adjusting cylinder, which can be precisely inserted into the through hole and controlled by a lifting assembly, is added at the lower die position. When performing regular large-diameter punching, simply lower the adjusting cylinder to a position that does not affect the normal operation of the through hole to complete the standard diameter punching. When processing smaller diameter holes, simply raise the adjusting cylinder precisely and insert it into the through hole using the lifting assembly, and release the adjusting rod. This creates a new, smaller punching clearance between the inner wall of the adjusting cylinder and the diameter of the adjusting rod, avoiding the time wasted and the risk of misalignment caused by repeatedly disassembling and assembling the entire mold. Attached Figure Description

[0014] Figure 1 This is a first-person perspective view of the present invention.

[0015] Figure 2 This is a perspective view of the present invention from a second angle.

[0016] Figure 3 This is a cross-sectional view of the punching rod of this utility model.

[0017] Figure 4 This is a cross-sectional view of the adjusting cylinder of this utility model.

[0018] 1. Support platform; 2. Placement rack; 3. Fixing plate; 4. Pressure plate; 5. Screw; 6. Punching rod; 7. Hydraulic rod; 8. Support plate; 9. Bracket; 10. Through hole; 11. Electric telescopic rod; 12. Lifting plate; 13. Adjusting rod; 14. Screw hole; 15. Groove; 16. Connecting block; 17. Adjusting cylinder; 18. Connecting rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Reference Appendix Figure 1 , 2 This utility model provides a punching device for power electronic components: it includes a support platform 1, on which a placement rack 2 for placing a substrate is fixedly connected; an L-shaped fixing plate 3 is fixedly installed on the placement rack 2, and a positioning component for fixing the substrate is connected inside the fixing plate 3; the positioning component includes a screw 5 and a pressure plate 4; the screw 5 is threadedly connected to the fixing plate 3, and the pressure plate 4 is fixedly connected to the lower end of the screw 5; turning the screw 5 causes the pressure plate 4 to move downward, which can fix the substrate using the pressure plate 4, and an elastic pad is provided at the lower end of the pressure plate 4.

[0021] Reference Appendix Figure 1 The placement rack 2 has a through hole 10, and an L-shaped bracket 9 fixedly connected to the ground is provided on the rear side of the placement rack 2. A punching rod 6 corresponding to the through hole 10 is provided inside the bracket 9, and a power component capable of driving the punching rod 6 to move up and down is connected to the bracket 9. The power component includes a hydraulic rod 7 and a support plate 8. The hydraulic rod 7 is mounted on the bracket 9, and the support plate 8 is fixedly connected to the working end of the hydraulic rod 7, and the support plate 8 is fixedly connected to the punching rod 6. The diameter of the punching rod 6 corresponds to the diameter of the through hole 10. The hydraulic rod 7 provides power for the movement of the punching rod 6, enabling the punching rod 6 and the through hole 10 to cooperate in punching the substrate.

[0022] Reference Appendix Figure 3 , 4 The punch rod 6 has a groove 15 inside, and an adjusting rod 13 is slidably arranged in the groove 15. The lower end of the adjusting rod 13 is flush with the lower end of the punch rod 6, which can ensure the flatness of the lower end of the punch rod 6. A lifting assembly is fixedly connected to the ground below the placement frame 2. An adjusting cylinder 17 that can be inserted upward into the through hole 10 is fixedly connected to the lifting assembly.

[0023] The lifting assembly includes an electric telescopic rod 11 and a lifting plate 12; the electric telescopic rod 11 is fixedly connected to the ground, and the lifting plate 12 is fixedly connected to the working end of the electric telescopic rod 11; a connecting block 16 is fixedly connected to the lower end of the adjusting cylinder 17, and the lifting plate 12 is fixedly connected to the connecting block 16 through a connecting rod 18; the connecting block 16 has a hole that penetrates the adjusting cylinder 17, which can ensure that the waste material from punching can be discharged downward normally;

[0024] The inner diameter of the adjusting cylinder 17 corresponds to the diameter of the adjusting rod 13. When the adjusting cylinder 17 is inserted into the through hole 10, the adjusting rod 13 is simultaneously moved out from the lower end of the punching rod 6. By utilizing the fit between the inner diameter of the adjusting cylinder 17 and the diameter of the adjusting rod 13, a new punching pair with a smaller diameter can be formed.

[0025] Reference Appendix Figure 3 The adjusting rod 13 has screw holes 14, and the punched rod 6 has fastening screws that can fix the adjusting rod 13 to the punched rod 6 through the screw holes 14. There are two screw holes 14, one above the other, which can fix the adjusting rod 13 before and after sliding adjustment respectively; the fastening screws are located away from the lower end of the punched rod 6, so as to avoid interference and collision when the punched rod 6 is used.

[0026] The principle of this utility model

[0027] When operating this equipment, please refer to the attached document. Figure 1 , 2 The operator places the substrate to be processed on the placement rack 2, aligning the punching position with the through hole 10 inside the placement rack 2. Then, the screw 5 is rotated, driving the lower pressure plate 4 downwards, firmly pressing the substrate against the surface of the placement rack 2 via the elastic pad, completing positioning and fixing. When performing regular large-diameter punching, ensure that the adjusting rod 13 is locked to the punching rod 6 with the fastening screw, keeping its lower end flush with the lower end of the punching rod 6. Then, control the electric telescopic rod 11 to drive the adjusting cylinder 17 downwards, completely removing its top from the through hole 10 area to avoid interfering with normal punching. After preparation, the hydraulic rod 7 is activated to push the support plate 8 and the punching rod 6 fixed thereto downwards. The punching rod 6 engages with the through hole 10 on the placement rack 2 to punch the substrate, completing the processing of the standard hole diameter.

[0028] When smaller hole diameters are required, a quick switch to small-diameter punching is performed. (See attached reference) Figure 3First, loosen the fastening screws on the punching rod 6, allowing the adjusting rod 13 to slide downwards within the groove 15. The adjusting rod 13 protrudes from the lower end of the punching rod 6, and then the fastening screws are used to lock the adjusting rod 13 in place. Next, control the electric telescopic rod 11 to push the adjusting cylinder 17 upwards smoothly, precisely inserting it into the through hole 10 of the placement frame 2. At this point, the diameter of the adjusting rod 13 and the inner diameter of the adjusting cylinder 17 form a new, smaller punching pair. Activate the hydraulic rod 7 to drive the punching rod 6 downwards. The smaller diameter hole is punched out by the combined action of the extended adjusting rod 13 and the inner wall of the adjusting cylinder 17. The punched waste falls onto the lifting plate 12, which is then cleaned up by the operator after punching. The entire process does not require replacing the entire upper and lower dies; a simple lifting and locking operation allows for rapid and precise switching between the two hole diameters, eliminating concerns about repeated repositioning causing misalignment of the upper and lower dies.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A punching device for power electronic components, comprising a support platform (1), on which a placement rack (2) for placing a substrate is fixedly connected; an L-shaped fixing plate (3) is fixedly disposed on the placement rack (2), and a positioning component capable of fixing the substrate is connected inside the fixing plate (3); a through hole (10) is opened inside the placement rack (2), and an L-shaped bracket (9) fixedly connected to the ground is disposed on the rear side of the placement rack (2); a punching rod (6) corresponding to the through hole (10) is disposed inside the bracket (9), and a power component capable of driving the punching rod (6) to move up and down is connected to the bracket (9); characterized in that: The diameter of the punch rod (6) corresponds to the diameter of the through hole (10); a groove (15) is provided in the punch rod (6), and an adjusting rod (13) is slidably arranged in the groove (15), with the lower end of the adjusting rod (13) flush with the lower end of the punch rod (6); a lifting assembly is fixedly connected to the ground below the placement frame (2), and an adjusting cylinder (17) that can be inserted upward into the through hole (10) is fixedly connected to the lifting assembly; the inner diameter of the adjusting cylinder (17) corresponds to the diameter of the adjusting rod (13).

2. The punching equipment for power electronic components according to claim 1, characterized in that: The power assembly includes a hydraulic rod (7) and a support plate (8). The hydraulic rod (7) is mounted on a bracket (9), and the support plate (8) is fixedly connected to the working end of the hydraulic rod (7). The support plate (8) is also fixedly connected to the punching rod (6).

3. The punching equipment for power electronic components according to claim 1, characterized in that: The adjusting rod (13) is provided with a screw hole (14), and the punch rod (6) is provided with a fastening screw that can fix the adjusting rod (13) and the punch rod (6) through the screw hole (14).

4. The punching equipment for power electronic components according to claim 3, characterized in that: The screw hole (14) is provided with two holes distributed vertically, and the fastening screw is located away from the lower end of the punch rod (6).

5. The punching equipment for power electronic components according to claim 1, characterized in that: The lifting assembly includes an electric telescopic rod (11) and a lifting plate (12); the electric telescopic rod (11) is fixedly connected to the ground, and the lifting plate (12) is fixedly connected to the working end of the electric telescopic rod (11); a connecting block (16) is fixedly connected to the lower end of the adjusting cylinder (17), the connecting block (16) has a hole that passes through the adjusting cylinder (17), and the lifting plate (12) is fixedly connected to the connecting block (16) through a connecting rod (18).

6. The punching equipment for power electronic components according to claim 1, characterized in that: The positioning component includes a screw (5) and a pressure plate (4); the screw (5) is threadedly connected to the fixing plate (3), the pressure plate (4) is fixedly connected to the lower end of the screw (5), and an elastic pad is provided at the lower end of the pressure plate (4).

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