IGBT tube shell multi-station progressive stamping device

Abstract

This utility model discloses a multi-station progressive stamping device for IGBT housings, relating to the field of IGBT technology. It includes a support mechanism comprising a mounting platform with a support frame fixedly connected to its top; and a staged stamping mechanism comprising a mounting component whose surface is fixedly connected to one side of the support frame, with a stamping hydraulic cylinder internally mounted on the mounting component. This utility model, through a multi-group staged stamping mechanism in conjunction with a stamping seat moving mechanism, eliminates the need for multiple workpiece disassembly and assembly. The multi-group staged stamping mechanism is equipped with stamping heads of different functions, capable of sequentially completing bending, finishing, and other processes. A motor-driven threaded rod drives a drive block to slide along a third slide rail, precisely transporting the workpiece to be stamped from the pressure seat to each stamping station. Process switching requires no manual intervention, significantly reducing single-workpiece processing time compared to traditional single-station methods, and greatly improving batch production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of IGBT technology, specifically to a multi-station progressive stamping device for IGBT housings. Background Technology

[0002] Traditional IGBT shell stamping equipment is widely used in the power electronics manufacturing industry. It is the core equipment for forming the metal casing of IGBTs, mainly used to complete key processes such as blanking, bending, and punching of the casing. By using pressure to drive the stamping head, external force is applied to the metal sheet, causing plastic deformation and ultimately forming a casing structure that meets the assembly requirements of IGBT modules. This ensures the dimensional accuracy and structural strength of the casing, providing a basic component for the production of IGBT modules in fields such as new energy vehicle inverters and industrial converters.

[0003] However, in scenarios requiring continuous stamping of multiple processes, such as when the tube shell needs to be bent, finished and frequently fine-tuned in the stamping position, most traditional devices are single-station designs, requiring multiple disassembly and reassembly of workpieces to switch processes, resulting in low efficiency; moreover, the positioning and adjustment of the stamping head depends on the overall disassembly and reassembly, lacking a flexible fine-tuning structure, which is prone to positioning deviations, resulting in tube shell dimensions exceeding tolerances, making it difficult to meet the needs of mass precision production of IGBT tube shells. Utility Model Content

[0004] This invention provides a multi-station progressive stamping device for IGBT housings to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A multi-station progressive stamping device for IGBT housings includes a support mechanism, which includes a mounting platform with a support frame fixedly connected to the top of the mounting platform; a staged stamping mechanism, which includes a mounting component with its surface fixedly connected to one side of the support frame, a stamping hydraulic cylinder disposed inside the mounting component, and a mounting plate fixedly connected to the output end of the stamping hydraulic cylinder; and a stamping seat moving mechanism, which includes a third slide rail with its bottom fixedly connected to the top of the mounting platform, and a driving block slidably connected to the surface of the third slide rail.

[0007] A further improvement of this utility model is that the graded stamping mechanism further includes a guide rod, the upper end of which is inserted into the interior of the mounting component, and the lower end of which is fixedly connected to the top of the mounting plate.

[0008] A further improvement of this utility model is that: a first slide rail is fixedly connected to the bottom of the mounting plate, a transverse fine-tuning plate is slidably connected to the surface of the first slide rail, and a first locking screw is threadedly connected to the inside of the transverse fine-tuning plate.

[0009] A further improvement of this utility model is that: one end of the first locking screw is tightly abutted against the surface of the first slide rail, the bottom of the horizontal fine-tuning plate is fixedly connected to the second slide rail, and the surface of the second slide rail is slidably connected to the vertical fine-tuning plate.

[0010] A further improvement of this utility model is that: the internal thread of the longitudinal fine-tuning plate is connected to a second locking screw, and one end of the second locking screw is in close contact with the surface of the second slide rail.

[0011] A further improvement of this utility model is that: a meshing block is fixedly connected to the bottom of the longitudinal fine-tuning plate, a punching head is meshed on the surface of the meshing block, the top of the punching head is bolted to the bottom of the longitudinal fine-tuning plate, and multiple sets of the graded punching mechanism are provided.

[0012] A further improvement of the present invention is that the stamping seat moving mechanism further includes a threaded rod, the surface of which is connected to the internal thread of the drive block, and one end of which is fixedly connected to a motor.

[0013] A further improvement of this utility model is that: the surface of the motor is fixedly connected to the top of the mounting platform, a pressure-bearing seat is fixedly connected to the top of the drive block, and a workpiece to be stamped is provided on the top of the pressure-bearing seat.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a multi-station progressive stamping device for IGBT housings. Through a multi-group progressive stamping mechanism and a stamping seat moving mechanism, multiple workpiece disassembly and assembly are eliminated. The multi-group progressive stamping mechanism is equipped with stamping heads with different functions, which can sequentially complete bending, finishing, and other processes. A motor-driven threaded rod moves a drive block along a third slide rail, accurately transporting the workpiece to be stamped from the pressure seat to each stamping station. Process switching requires no manual intervention, and the processing time for a single workpiece is significantly reduced compared to traditional single-station methods, greatly improving batch production efficiency. Simultaneously, the stamping head positioning can be flexibly fine-tuned without overall disassembly. A horizontal fine-tuning plate slides along a first slide rail, and a vertical fine-tuning plate slides along a second slide rail, fixed in position by a first locking screw and a second locking screw, respectively. The engaging block and stamping head are connected by bolts, further ensuring positioning stability and preventing housing dimensional deviations. This device is suitable for the precision batch production needs of IGBT housings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the graded stamping mechanism of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the graded stamping mechanism of this utility model.

[0020] In the diagram: 11. Mounting platform; 12. Support frame; 21. Mounting component; 22. Stamping hydraulic cylinder; 23. Mounting plate; 24. Guide rod; 25. First slide rail; 26. Lateral fine-tuning plate; 27. First locking screw; 28. Second slide rail; 29. ​​Longitudinal fine-tuning plate; 210. Second locking screw; 211. Engaging block; 212. Stamping head; 31. Third slide rail; 32. Drive block; 33. Threaded rod; 34. Motor; 35. Pressure bearing seat. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to embodiments:

[0022] Example 1, as Figures 1-4 As shown, this utility model provides a multi-station progressive stamping device for IGBT housings, including a support mechanism, which includes a mounting platform 11, with a support frame 12 fixedly connected to the top of the mounting platform 11; a staged stamping mechanism, which includes a mounting component 21, the surface of which is fixedly connected to one side of the support frame 12, and a stamping hydraulic cylinder 22 disposed inside the mounting component 21, with a mounting plate 23 fixedly connected to the output end of the stamping hydraulic cylinder 22; and a stamping seat moving mechanism, which includes a third slide rail 31, the bottom of which is fixedly connected to the top of the mounting platform 11, and a driving block 32 slidably connected to the surface of the third slide rail 31.

[0023] In this embodiment, the IGBT tube shell blank to be stamped is placed on the top of the pressure seat 35 of the stamping seat moving mechanism to ensure that the blank is centered. According to the multiple processes such as bending and fine finishing that the tube shell needs to complete, the corresponding functional stamping head 212 is installed to the bottom of the longitudinal fine adjustment plate 29 by bolts. Then, the position of the stamping head 212 of the multi-group graded stamping mechanism is adjusted: the first locking screw 27 on the transverse fine adjustment plate 26 is loosened, and the transverse fine adjustment plate 26 is pushed to slide along the first slide rail 25 at the bottom of the mounting plate 23 to achieve transverse position fine adjustment of the stamping head 212; then the second locking screw 210 on the longitudinal fine adjustment plate 29 is loosened, and the longitudinal fine adjustment plate 29 is pushed to slide along the second slide rail 28 at the bottom of the transverse fine adjustment plate 26 to complete the longitudinal position calibration of the stamping head 212. After fine adjustment, the locking screw is tightened. The stamping head 212 is accurately positioned by the engagement positioning of the engagement block 211 and the double fixation of the top bolt.

[0024] Example 2, as Figures 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the graded stamping mechanism further includes a guide rod 24, the upper end of the guide rod 24 is inserted into the interior of the mounting component 21, the lower end of the guide rod 24 is fixedly connected to the top of the mounting plate 23, the bottom of the mounting plate 23 is fixedly connected to a first slide rail 25, the surface of the first slide rail 25 is slidably connected to a transverse fine-tuning plate 26, the interior of the transverse fine-tuning plate 26 is threaded with a first locking screw 27, one end of the first locking screw 27 is tightly abutted against the surface of the first slide rail 25, the bottom of the transverse fine-tuning plate 26 is fixedly connected to a second slide rail 28, the surface of the second slide rail 28 is slidably connected to a longitudinal fine-tuning plate 29, the interior of the longitudinal fine-tuning plate 29 is threaded with a second locking screw 210, one end of the second locking screw 210 is tightly abutted against the surface of the second slide rail 28.

[0025] In this embodiment, by activating the motor 34 of the stamping seat moving mechanism, the motor 34 shaft drives the threaded rod 33 to rotate, and the drive block 32, which is threadedly connected to the threaded rod 33, slides smoothly along the third slide rail 31 until the blank on the bearing seat 35 is aligned directly below the stamping head 212 of the first group of graded stamping mechanism. At this time, the guide rod 24 of the graded stamping mechanism remains vertical, providing stable guidance for subsequent stamping and preventing the mounting plate from shifting.

[0026] Example 3, as Figures 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a meshing block 211 is fixedly connected to the bottom of the longitudinal fine-tuning plate 29, a punching head 212 is meshed on the surface of the meshing block 211, the top of the punching head 212 is bolted to the bottom of the longitudinal fine-tuning plate 29, multiple sets of graded punching mechanisms are provided, the punching seat moving mechanism also includes a threaded rod 33, the surface of the threaded rod 33 is threadedly connected to the inside of the drive block 32, a motor 34 is fixedly connected to one end of the threaded rod 33, the surface of the motor 34 is fixedly connected to the top of the mounting platform 11, a pressure seat 35 is fixedly connected to the top of the drive block 32, and a workpiece to be punched is provided on the top of the pressure seat 35.

[0027] In this embodiment, by activating the stamping hydraulic cylinder 22 of the first-group tiered stamping mechanism, the output end of the hydraulic cylinder pushes the mounting plate 23 vertically downward along the guide rod 24, causing the stamping head 212 to contact the blank and complete the bending process. After bending, the stamping hydraulic cylinder 22 drives the mounting plate 23 to reset, the stamping head 212 detaches from the blank, the motor 34 starts again, and the drive block 32 drives the pressure seat 35 to move below the second-group tiered stamping mechanism, repeating the above stamping action to complete the tube shell finishing. If more processes are required, they can be executed sequentially through the multi-group tiered stamping mechanism. The entire process does not require disassembling the workpiece and switching stations, achieving continuous processing. After all stamping processes are completed, the motor 34 drives the drive block 32 to return to the initial position along the third slide rail 31, and the operator removes the formed IGBT tube shell from the pressure seat 35. If the next batch of blanks needs to be processed, only the steps need to be repeated, without the need to readjust the reference position of the stamping head, which is suitable for batch precision production needs and avoids positioning deviations and efficiency losses caused by multiple disassembly and assembly of workpieces.

[0028] The working principle of the multi-station progressive stamping device for IGBT housings will be explained in detail below.

[0029] like Figures 1-4As shown, the IGBT casing blank to be stamped is first placed on the top of the pressure seat 35 of the stamping seat moving mechanism, ensuring that the blank is centered. According to the multiple processes such as bending and finishing that the casing needs to complete, the corresponding functional stamping head 212 is installed to the bottom of the longitudinal fine-tuning plate 29 by bolts. Then, the position of the stamping head 212 of the multi-group tiered stamping mechanism is adjusted: the first locking screw 27 on the transverse fine-tuning plate 26 is loosened, and the transverse fine-tuning plate 26 is pushed to slide along the first slide rail 25 at the bottom of the mounting plate 23 to achieve fine-tuning of the transverse position of the stamping head 212; then the longitudinal fine-tuning plate 29 is loosened. The second locking screw 210 on plate 9 pushes the longitudinal fine-tuning plate 29 to slide along the second slide rail 28 at the bottom of the transverse fine-tuning plate 26, completing the longitudinal position calibration of the stamping head 212. After fine-tuning, the locking screw is tightened, and the stamping head 212 is double-fixed by the engagement positioning of the engagement block 211 and the top bolt, ensuring the accurate position of the stamping head 212. Then, the motor 34 of the stamping seat moving mechanism is started. The rotating shaft of the motor 34 drives the threaded rod 33 to rotate. The drive block 32, which is threadedly connected to the threaded rod 33, slides smoothly along the third slide rail 31 until the blank on the bearing seat 35 is aligned with the first group of tiered stamping machines. Directly below the stamping head 212 of the first tiered stamping mechanism, the guide rod 24 of the tiered stamping mechanism remains vertical, providing stable guidance for subsequent stamping and preventing the mounting plate from shifting. The stamping hydraulic cylinder 22 of the first tiered stamping mechanism is activated, and the output end of the hydraulic cylinder pushes the mounting plate 23 vertically downward along the guide rod 24, causing the stamping head 212 to contact the blank and complete the bending process. After bending, the stamping hydraulic cylinder 22 drives the mounting plate 23 to reset, the stamping head 212 is separated from the blank, the motor 34 is restarted, and the drive block 32 drives the pressure seat 35 to move to the second tiered stamping machine. Below the structure, repeat the above stamping action to complete the tube shell finishing; if more processes are required, they can be executed sequentially through a multi-group tiered stamping mechanism. The entire process does not require disassembling the workpiece or switching stations, enabling continuous processing. After all stamping processes are completed, the motor 34 drives the drive block 32 to return to the initial position along the third slide rail 31. The operator removes the formed IGBT tube shell from the pressure seat 35. If the next batch of blanks needs to be processed, the steps only need to be repeated. There is no need to readjust the reference position of the stamping head, which is suitable for batch precision production needs and avoids positioning deviations and efficiency losses caused by multiple disassembly and assembly of workpieces.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An IGBT tube shell multi-station progressive stamping device, characterized in that: include The support mechanism includes a mounting platform (11), and a support frame (12) is fixedly connected to the top of the mounting platform (11); A graded stamping mechanism, the graded stamping mechanism includes a mounting part (21), the surface of the mounting part (21) is fixedly connected to one side of the support frame (12), a stamping hydraulic cylinder (22) is provided inside the mounting part (21), and a mounting plate (23) is fixedly connected to the output end of the stamping hydraulic cylinder (22); The stamping seat moving mechanism includes a third slide rail (31), the bottom of which is fixedly connected to the top of the mounting platform (11), and a driving block (32) is slidably connected to the surface of the third slide rail (31).

2. The IGBT housing multi-station progressive stamping device according to claim 1, characterized in that: The graded stamping mechanism also includes a guide rod (24), the upper end of which is inserted into the interior of the mounting component (21), and the lower end of which is fixedly connected to the top of the mounting plate (23).

3. The multi-station progressive die apparatus for IGBT package according to claim 2, wherein: The bottom of the mounting plate (23) is fixedly connected to a first slide rail (25), and a horizontal fine-tuning plate (26) is slidably connected to the surface of the first slide rail (25). The internal thread of the horizontal fine-tuning plate (26) is connected to a first locking screw (27).

4. The multi-station progressive die apparatus for IGBT package according to claim 3, wherein: One end of the first locking screw (27) is in close contact with the surface of the first slide rail (25), and the bottom of the transverse fine adjustment plate (26) is fixedly connected to the second slide rail (28), and the surface of the second slide rail (28) is slidably connected to the longitudinal fine adjustment plate (29).

5. The multi-station progressive die apparatus for IGBT package according to claim 4, wherein: The longitudinal fine-tuning plate (29) is internally threaded with a second locking screw (210), one end of which is in close contact with the surface of the second slide rail (28).

6. The multi-station progressive die apparatus for IGBT package punching according to claim 5, wherein: The bottom of the longitudinal fine-tuning plate (29) is fixedly connected to a meshing block (211), and a punch head (212) meshes with the surface of the meshing block (211). The top of the punch head (212) is bolted to the bottom of the longitudinal fine-tuning plate (29). The graded punching mechanism is provided with multiple sets.

7. The multi-station progressive die apparatus for IGBT package punching according to claim 1, wherein: The stamping seat moving mechanism also includes a threaded rod (33), the surface of which is threadedly connected to the inside of the drive block (32), and a motor (34) is fixedly connected to one end of the threaded rod (33).

8. The multi-station progressive die apparatus for IGBT package according to claim 7, wherein: The surface of the motor (34) is fixedly connected to the top of the mounting platform (11), and a pressure seat (35) is fixedly connected to the top of the drive block (32). The workpiece to be stamped is set on the top of the pressure seat (35).

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