Composite elastic crimping type IGBT (Insulated Gate Bipolar Translator) disc spring assembly pressing rivet fixing die

Abstract

The utility model discloses a composite elastic crimping type IGBT (Insulated Gate Bipolar Translator) disc spring assembly pressing rivet fixing die, which relates to the technical field of IGBT disc spring assembly production, and comprises an IGBT disc spring assembly pressing rivet upper die and an IGBT disc spring assembly pressing rivet lower die, the IGBT disc spring assembly rivet pressing lower die is located under the IGBT disc spring assembly rivet pressing upper die, a pair of installation bases are installed on the two sides of the IGBT disc spring assembly rivet pressing lower die through clamping bolts, and a pair of sliding grooves are formed in the faces, close to the IGBT disc spring assembly rivet pressing lower die, of the installation bases; according to the pressing rivet fixing die for the composite elastic crimping type IGBT disc spring assembly, when the electric push rod needs to be maintained or replaced, the limiting strip can be swung upwards, the second box body is pulled outwards through the handle, the electric push rod is exposed and loses extrusion limiting, the electric push rod can be directly pulled out, a dismounting tool is not needed, and the pressing rivet fixing die is simple in structure and convenient to use. And maintenance and replacement are very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of IGBT disc spring component production, in particular to a riveting and fixing die for a composite elastic press-fit type IGBT disc spring component. Background Technique

[0002] The composite elastic press-fit type IGBT disc spring component is a kind of IGBT disc spring component, which is a packaging structure used for IGBT power modules, and is mainly composed of components such as disc springs, emitter gaskets, silver / aluminum gaskets, and molybdenum sheets.

[0003] When producing the composite elastic press-fit type IGBT disc spring component, it is often necessary to use a riveting and fixing die to rivet two or more structures together. The riveting and fixing die usually consists of an upper die, a lower die, and an ejection structure. After the riveting is completed, it is usually necessary to use the ejection structure to eject the composite elastic press-fit type IGBT disc spring component from the lower die. The existing ejection structures usually use electric push rods, cylinders and other electric pushing devices for pushing. When a failure occurs, it needs to be disassembled for repair at this time, and these electric pushing devices are usually fixed and installed with bolts and screws, and are also arranged at the bottom of the lower die. Usually, the lower die also needs to be disassembled, which increases the disassembly and assembly difficulty, and thus is not convenient for subsequent maintenance. Content of the Utility Model

[0004] The utility model provides a riveting and fixing die for a composite elastic press-fit type IGBT disc spring component, which has the advantages of convenient disassembly and assembly of the electric pushing device and convenient maintenance, so as to solve the problems put forward in the background technique.

[0005] In order to solve the defect of inconvenient maintenance caused by inconvenient disassembly and assembly of the electric pushing device of the existing riveting and fixing die for the composite elastic press-fit type IGBT disc spring component, the utility model provides the following technical solution: A riveting and fixing die for a composite elastic press-fit type IGBT disc spring component, including an IGBT disc spring component press-riveting upper die and an IGBT disc spring component press-riveting lower die, the IGBT disc spring component press-riveting lower die is located directly below the IGBT disc spring component press-riveting upper die, and a pair of mounting seats are clamped and installed on both sides of the IGBT disc spring component press-riveting lower die. A pair of sliding grooves are opened on the surface of the mounting seat close to the IGBT disc spring component press-riveting lower die. The bottom surface of the IGBT disc spring component press-riveting lower die is attached with a first ejection mechanism fixedly connected to the mounting seat. The bottom end of the first ejection mechanism is attached with a second ejection mechanism, and the second ejection mechanism is slidably connected to the sliding groove.

[0006] As a preferred technical solution of the present utility model, the first ejecting mechanism includes a first box body. A circular hole is provided in the middle of the bottom surface of the first box body. A lifting plate that is connected to the first box body in a vertically sliding manner is arranged inside the first box body. A plurality of ejecting columns are magnetically attached to the top surface of the lifting plate. A limiting strip is rotatably connected to the front surface of the first box body. Two protruding strips are integrally connected to the bottom end of the first box body. A pair of mounting holes are provided on both sides of the first box body.

[0007] As a preferred technical solution of the present utility model, the ejecting columns extend into the IGBT disc spring assembly riveting lower die, and the mounting seat is fixedly connected to the mounting holes by clamping bolts.

[0008] As a preferred technical solution of the present utility model, the second ejecting mechanism includes a second box body. A handle is integrally connected to the middle of the front surface of the second box body. A pair of sliding strips that are vertically distributed are integrally connected to both sides of the second box body. A limiting card sleeve is fixedly connected to the inner wall below the second box body. An electric push rod is inserted into the limiting card sleeve.

[0009] As a preferred technical solution of the present utility model, the limiting strip swings and is inserted into the handle, and the front surface of the limiting strip is attached to the inner wall of the front surface of the handle, and the back surface of the limiting strip is attached to the front surface of the second box body.

[0010] As a preferred technical solution of the present utility model, the sliding strips are slidably connected to the sliding grooves, and the bottom surface of the protruding strip is attached to the top surface of the electric push rod housing.

[0011] As a preferred technical solution of the present utility model, the electric push rod is located directly below the circular hole, and the horizontal height of the output end of the electric push rod is lower than the horizontal height of the first box body during storage.

[0012] Compared with the prior art, the present utility model provides a composite elastic pressing type IGBT disc spring assembly riveting and fixing mold, which has the following beneficial effects:

[0013] 1. For the composite elastic pressing type IGBT disc spring assembly riveting and fixing mold, the provided handle not only facilitates pulling out the second box body, but also can be used in cooperation with the limiting strip to lock the second box body. Normally, the protruding strip presses on the top shell of the electric push rod, and in cooperation with the limiting card sleeve, the fixed installation of the electric push rod can be realized. When the electric push rod needs to be repaired or replaced, the limiting strip can be swung upward at this time and the second box body can be pulled outwards through the handle. At this time, the electric push rod is exposed and loses the extrusion limit, and the electric push rod can be directly drawn out without disassembly tools, and the repair and replacement are very convenient;

[0014] 2. For this compound elastic crimping type IGBT disc spring assembly riveting and fixing die, when it is necessary to produce another compound elastic crimping type IGBT disc spring assembly, at this time, it is necessary to replace the upper die and the lower die for riveting the IGBT disc spring assembly, while the first ejection mechanism and the second ejection mechanism can still be reused, and the replacement cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the split structure of the first ejection mechanism of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the second ejection mechanism of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the upper die for riveting the IGBT disc spring assembly of the present utility model.

[0019] In the figure:

[0020] 10. Upper die for riveting the IGBT disc spring assembly; 20. Lower die for riveting the IGBT disc spring assembly; 30. Mounting seat; 40. Slide groove; 50. First ejection mechanism; 51. First box body; 52. Round hole; 53. Lifting plate; 54. Jacking column; 55. Limiting strip; 56. Rib; 57. Mounting hole; 60. Second ejection mechanism; 61. Second box body; 62. Handle; 63. Slide bar; 64. Limiting bushing; 65. Electric push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 4, the present utility model discloses a compound elastic press - riveting and fixing die for an IGBT disc spring assembly, including an upper die 10 for press - riveting the IGBT disc spring assembly and a lower die 20 for press - riveting the IGBT disc spring assembly. The lower die 20 for press - riveting the IGBT disc spring assembly is located directly below the upper die 10 for press - riveting the IGBT disc spring assembly. A pair of mounting seats 30 are bolt - mounted by clamping on both sides of the lower die 20 for press - riveting the IGBT disc spring assembly. A pair of sliding grooves 40 are opened on the side of the mounting seat 30 close to the lower die 20 for press - riveting the IGBT disc spring assembly. A first ejecting mechanism 50 fixedly connected to the mounting seat 30 is attached to the bottom surface of the lower die 20 for press - riveting the IGBT disc spring assembly. The bottom end of the first ejecting mechanism 50 is attached to a second ejecting mechanism 60, and the second ejecting mechanism 60 is slidably connected to the sliding groove 40.

[0023] In this embodiment, the lower die 20 for press - riveting the IGBT disc spring assembly can be used to clamp the compound elastic press - riveting type IGBT disc spring assembly to be press - riveted. Cooperating with the downward - moving upper die 10 for press - riveting the IGBT disc spring assembly, the press - riveting and fixed connection of the compound elastic press - riveting type IGBT disc spring assembly can be realized. The mounting seat 30 is of an L - shaped structure and can connect the lower die 20 for press - riveting the IGBT disc spring assembly, the first ejecting mechanism 50, and the second ejecting mechanism 60 together.

[0024] Specifically, the first ejecting mechanism 50 includes a first box body 51. A round hole 52 is opened in the middle of the bottom surface of the first box body 51. A lifting plate 53 that is slidably connected to it up and down is arranged inside the first box body 51. A plurality of ejecting columns 54 are magnetically attached to the top surface of the lifting plate 53. A limiting strip 55 is rotatably connected to the front surface of the first box body 51. Two protruding strips 56 are integrally connected to the bottom end of the first box body 51. A pair of mounting holes 57 are opened on both sides of the first box body 51. The ejecting columns 54 extend into the lower die 20 for press - riveting the IGBT disc spring assembly, and the mounting seat 30 is fixedly connected to the mounting holes 57 by clamping bolts.

[0025] In this embodiment, the upper part of the lifting plate 53 is made of a magnet material, while the ejecting columns 54 are made of a metal material, and the two can be magnetically attached. During normal use, when the lifting plate 53 is pushed, it can drive all the ejecting columns 54 to move upward. The ejecting columns 54 can eject the compound elastic press - riveting type IGBT disc spring assembly embedded in the lower die 20 for press - riveting the IGBT disc spring assembly. And because the ejecting columns 54 are magnetically attached to the lifting plate 53, their positions are flexible. When the upper die 10 for press - riveting the IGBT disc spring assembly and the lower die 20 for press - riveting the IGBT disc spring assembly are replaced, the first ejecting mechanism 50 can still be reused.

[0026] Specifically, the second ejecting mechanism 60 includes a second box body 61. In the middle of the front surface of the second box body 61, a handle 62 is integrally connected. On both sides of the second box body 61, a pair of sliding strips 63 distributed up and down are integrally connected. On the inner wall below the second box body 61, a limit card sleeve 64 is fixedly connected. An electric push rod 65 is inserted into the limit card sleeve 64. The limit strip 55 swings and is inserted into the handle 62. The front surface of the limit strip 55 fits against the inner wall of the front surface of the limit strip 55, and the back surface of the limit strip 55 fits against the front surface of the second box body 61. The sliding strip 63 is slidably connected to the sliding groove 40. The bottom surface of the convex strip 56 fits against the top surface of the shell of the electric push rod 65. The electric push rod 65 is located directly below the circular hole 52. When the electric push rod 65 is stored, the horizontal height of its output end is lower than the horizontal height of the first box body 51.

[0027] In this implementation scheme, during normal use, since the bottom end of the convex strip 56 fits against the outer shell on the top surface of the electric push rod 65, and the electric push rod 65 is clamped on the limit card sleeve 64, the fixed installation of the electric push rod 65 can be realized at this time. There is no need to use bolts for fixed installation. During subsequent disassembly and assembly, there is no need to borrow tools, and the disassembly and assembly efficiency is also greatly improved.

[0028] The working principle and usage process of the present utility model: The composite elastic press-fit IGBT disc spring assembly to be press-riveted is clamped on the IGBT disc spring assembly press-riveting lower die 20, the riveting screws are placed well, the IGBT disc spring assembly press-riveting upper die 10 is driven to move downward and fit against the IGBT disc spring assembly press-riveting lower die 20. At this time, the screws are squeezed to realize the riveting of the two structures, so that the preliminary manufacture of the composite elastic press-fit IGBT disc spring assembly can be realized. Then, the electric push rod 65 is started, the lifting plate 53 moves upward and drives all the ejector pins 54 to move upward. The ejector pins 54 can eject the riveted composite elastic press-fit IGBT disc spring assembly.

[0029] When it is necessary to replace or repair the electric push rod 65, swing the limit strip 55 upward. At this time, the limit strip 55 is separated from the handle 62 and the second box body 61. Hold the handle 62 and pull the second box body 61 outward. At this time, the electric push rod 65 is exposed, and at the same time, the top surface shell end of the electric push rod 65 is separated from the convex strip 56, and the electric push rod 65 can be directly pulled out upward.

[0030] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A compound elastic crimping type IGBT disc spring component riveting and fixing die, characterized in that: It includes an IGBT disc spring assembly riveting upper die (10) and an IGBT disc spring assembly riveting lower die (20). The IGBT disc spring assembly riveting lower die (20) is located directly below the IGBT disc spring assembly riveting upper die (10). A pair of mounting seats (30) are bolted and clamped on both sides of the IGBT disc spring assembly riveting lower die (20). A pair of chutes (40) are provided on the side of the mounting seat (30) close to the IGBT disc spring assembly riveting lower die (20). A first ejecting mechanism (50) fixedly connected to the mounting seat (30) is attached to the bottom surface of the IGBT disc spring assembly riveting lower die (20). A second ejecting mechanism (60) is attached to the bottom end of the first ejecting mechanism (50). The second ejecting mechanism (60) is slidably connected to the chute (40).

2. The composite elastic crimping type IGBT disc spring component riveting and fixing die according to claim 1, wherein: The first ejecting mechanism (50) includes a first box body (51). A round hole (52) is provided in the middle of the bottom surface of the first box body (51). A lifting plate (53) that slides up and down with it is provided inside the first box body (51). A plurality of ejecting columns (54) are magnetically attached to the top surface of the lifting plate (53). A limiting strip (55) is rotatably connected to the front surface of the first box body (51). Two protruding strips (56) are integrally connected to the bottom end of the first box body (51). A pair of mounting holes (57) are provided on both sides of the first box body (51).

3. The composite elastic crimping type IGBT disc spring assembly riveting and fixing die according to claim 2, characterized in that: The ejecting columns (54) extend into the IGBT disc spring assembly riveting lower die (20). The mounting seat (30) is fixedly connected to the mounting hole (57) by a bolted connection.

4. The composite elastic crimping type IGBT disc spring component riveting and fixing die according to claim 2, wherein: The second ejecting mechanism (60) includes a second box body (61). A handle (62) is integrally connected to the middle of the front surface of the second box body (61). A pair of slide bars (63) distributed up and down are integrally connected to both sides of the second box body (61). A limiting card sleeve (64) is fixedly connected to the inner wall below the second box body (61). An electric push rod (65) is inserted into the limiting card sleeve (64).

5. The composite elastic crimping type IGBT disc spring assembly riveting and fixing die according to claim 4, characterized in that: The limiting strip (55) swings and is inserted into the handle (62). The front surface of the limiting strip (55) is attached to the inner wall of the front surface of the limiting strip (55), and the back surface of the limiting strip (55) is attached to the front surface of the second box body (61).

6. The composite elastic press-fit type IGBT disc spring assembly press riveting and fixing die according to claim 4, wherein: The slide bar (63) is slidably connected to the chute (40). The bottom surface of the protruding strip (56) is attached to the top surface of the housing of the electric push rod (65).

7. The composite elastic crimping type IGBT disc spring assembly riveting and fixing die according to claim 4, characterized in that: The electric push rod (65) is located directly below the round hole (52). The horizontal height of the output end of the electric push rod (65) is lower than the horizontal height of the first box body (51) when it is retracted.

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