Crimping type IGBT voltage division limiting frame combined testing fixture
The combined gauge addresses the limitations of conventional gauges by providing zone-specific detection for both rectangular and circular press-pack IGBTs, enhancing detection versatility and ease of component removal.
Patent Information
- Application Number
- CN202422405126.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-04
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-04
AI Technical Summary
The combined test tool used for crimping IGBT detection in the prior art cannot perform partition detection effectively, and its application scope is limited, making it difficult to adapt to crimping IGBTs of different shapes.
A combined inspection tool including a test tool body, a base, a support rod, a first pressure inspection assembly, a second pressure inspection assembly and an ejection assembly are designed, respectively used to detect rectangular and circular crimped IGBTs of different sizes, and multi-shaped application is achieved through the combination of limit frames and detection plates.
It realizes component position detection of rectangular and round crimped IGBTs of different sizes, with a wide range of applications, and is easy to remove after detection and is convenient to use.
Smart Images
Figure CN223106845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of inspection tools, in particular to a combined inspection tool for a press-fit IGBT voltage-dividing limit frame. Background Art
[0002] An inspection tool is a special inspection device used to measure and evaluate the quality of part dimensions, shapes, and position characteristics. By visual inspection, or measuring instruments, or calipers, the part surface and periphery are inspected. With the help of inspection pins or visual inspection, the holes of different natures on the part and the connection positions between parts are visually inspected, so as to ensure a quick judgment of the part quality status during trial production and initial production. After the press-fit IGBT is packaged, a combined inspection tool is required to detect the positions of the components on the press-fit IGBT.
[0003] At present, although the conventional combined inspection tool for press-fit IGBT detection can achieve the above functions, it cannot achieve partition detection well, that is, it cannot detect press-fit IGBTs of different shapes well, and the applicable range is limited, so further improvement is needed.
[0004] Therefore, it is necessary to invent a combined inspection tool for a press-fit IGBT voltage-dividing limit frame. Content of the Utility Model
[0005] For this reason, the utility model provides a combined inspection tool for a press-fit IGBT voltage-dividing limit frame to solve the problems raised in the above background art.
[0006] To achieve the above object, the utility model provides the following technical solution: A combined inspection tool for a press-fit IGBT voltage-dividing limit frame, including an inspection tool body and a base. Vertical support rods are fixedly arranged at four corners of the top of the base, and the bottom of the inspection tool body is fixed at the top ends of the four support rods. A first press-inspection component for detecting a rectangular press-fit IGBT is fixed at the top edge of the inspection tool body, a second press-inspection component for detecting a circular press-fit IGBT is arranged at the center of the top of the inspection tool body, and an ejection component is fixed at the bottom of the inspection tool body.
[0007] Preferably, the first press-inspection component includes a limit frame, the bottom of the limit frame is fixed at the top edge of the inspection tool body, and a first placement groove is opened at the top of the limit frame.
[0008] Preferably, a rectangular detection plate is placed in the first placement groove, and a plurality of first detection holes are opened on the rectangular detection plate.
[0009] Preferably, the second press-inspection component includes a second placement groove, the second placement groove is opened at the center of the top of the inspection tool body, and a first limit groove is opened at the bottom of the inner wall of the second placement groove.
[0010] Preferably, a first circular detection plate is placed in the second placement groove, and a plurality of second detection holes are formed in the first circular detection plate.
[0011] Preferably, a third placement groove is formed at the center of the bottom of the inner wall of the first limiting groove, and a second limiting groove is formed at the bottom of the inner wall of the third placement groove.
[0012] Preferably, a second circular detection plate is placed inside the third placement groove, and a plurality of third detection holes are formed in the second circular detection plate.
[0013] Preferably, the ejecting assembly includes a vertically arranged electric push rod. The top of the electric push rod is fixed at the center of the bottom of the inspection tool body. A through hole is vertically formed at the center of the bottom of the inner wall of the second limiting groove. The top end of the output shaft of the electric push rod vertically passes through the through hole, and a top plate is fixed at the top end of the output shaft of the electric push rod. The top plate is located inside the second limiting groove.
[0014] The beneficial effects of the present utility model are as follows: By the combined use of the inspection tool body, the base, the support rod, the first pressing and inspecting assembly, the second pressing and inspecting assembly and the ejecting assembly, not only can the positions of the components on the rectangular press-fit IGBT be detected, but also the positions of the components on the circular press-fit IGBTs of different sizes can be detected, so that it can be well applicable to the detection operations of press-fit IGBTs of different shapes, with a wide application range, and it is convenient to remove the detected press-fit IGBT from the inspection tool body, which is convenient to use and suitable for popularization. Description of the Drawings
[0015] Figure 1 is a structural sectional view provided by the present utility model;
[0016] Figure 2 is a structural top view of the first pressing and inspecting assembly provided by the present utility model;
[0017] Figure 3 is a structural top view of the second pressing and inspecting assembly provided by the present utility model;
[0018] Figure 4 is a main view of the structure provided by the present utility model.
[0019] In the figure: 1, inspection tool body; 2, base; 3, support rod; 4, limiting frame; 5, first placement groove; 6, rectangular detection plate; 7, first detection hole; 8, second placement groove; 9, first limiting groove; 10, first circular detection plate; 11, second detection hole; 12, third placement groove; 13, second limiting groove; 14, second circular detection plate; 15, third detection hole; 16, electric push rod; 17, through hole; 18, top plate. Detailed Description of the Invention
[0020] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only for explaining and understanding the present utility model, and are not used to limit the present utility model.
[0021] Please refer to the attached Figures 1-4 , A crimping type IGBT voltage dividing and limiting frame combined inspection tool provided by the present utility model includes an inspection tool body 1 and a base 2. Vertical support rods 3 are fixedly arranged at the four corners of the top of the base 2, and the bottom of the inspection tool body 1 is fixed to the tops of the four support rods 3. A first pressure inspection component for detecting a rectangular crimping type IGBT is fixed at the edge of the top of the inspection tool body 1, a second pressure inspection component for detecting a circular crimping type IGBT is arranged at the center of the top of the inspection tool body 1, and an ejection component is fixed at the bottom of the inspection tool body 1;
[0022] The first pressure inspection component includes a limiting frame 4. The bottom of the limiting frame 4 is fixed at the edge of the top of the inspection tool body 1. A first placement groove 5 is opened at the top of the limiting frame 4. A rectangular inspection plate 6 is placed in the first placement groove 5. A plurality of first inspection holes 7 are opened on the rectangular inspection plate 6. Specifically, when it is necessary to detect the positions of the components on the rectangular crimping type IGBT, the staff can place the rectangular crimping type IGBT into the limiting frame 4 to limit the crimping type IGBT, and then align the rectangular inspection plate 6 and press it down on the crimping type IGBT. The positions of the components on the crimping type IGBT are detected through the plurality of first inspection holes 7. If the positions of the components on the crimping type IGBT are correct, they can pass through the first inspection holes 7. If there are errors in the positions of the components on the crimping type IGBT, they cannot pass through the first inspection holes 7;
[0023] The second pressure inspection component includes a second placement groove 8. The second placement groove 8 is opened at the center of the top of the inspection tool body 1. A first limiting groove 9 is opened at the bottom of the inner wall of the second placement groove 8. A first circular inspection plate 10 is placed in the second placement groove 8. A plurality of second inspection holes 11 are opened on the first circular inspection plate 10. Specifically, when it is necessary to detect the positions of the components on the large-diameter circular crimping type IGBT, the staff can place the circular crimping type IGBT into the first limiting groove 9, and then align the first circular inspection plate 10 and press it down on the crimping type IGBT. The positions of the components on the crimping type IGBT are detected through the plurality of second inspection holes 11;
[0024] At the center of the bottom of the inner wall of the first limiting groove 9, a third placement groove 12 is opened. At the bottom of the inner wall of the third placement groove 12, a second limiting groove 13 is opened. Inside the third placement groove 12, a second circular detection plate 14 is placed. A number of third detection holes 15 are opened on the second circular detection plate 14. Specifically, when it is necessary to detect the positions of components on a circular press-fit IGBT with a small diameter, the staff can place the circular press-fit IGBT into the second limiting groove 13, and then align the second circular detection plate 14 and press it down on the press-fit IGBT, and detect the positions of the components on the press-fit IGBT through a number of third detection holes 15;
[0025] In summary, this combined inspection tool can not only detect the positions of components on a rectangular press-fit IGBT, but also detect the positions of components on circular press-fit IGBTs of different sizes, so that it can be well applied to the inspection operations of press-fit IGBTs of different shapes, and has a wide range of applications;
[0026] The ejection assembly includes a vertically arranged electric push rod 16. It should be noted that the electric push rod 16 is a power-driven device that converts the rotary motion of a motor into the linear reciprocating motion of a push rod. The electric push rod 16 is electrically connected to the external 220V mains through a control switch (not shown in the figure). The top of the electric push rod 16 is fixed at the center of the bottom of the inspection tool body 1. A through hole 17 is vertically opened at the center of the bottom of the inner wall of the second limiting groove 13. The top end of the output shaft of the electric push rod 16 vertically passes through the through hole 17, and a top plate 18 is fixed at the top end of the output shaft of the electric push rod 16. The top plate 18 is located in the second limiting groove 13. Specifically, when the electric push rod 16 operates, it can drive the top plate 18 to lift and lower, so as to conveniently eject and remove the inspected press-fit IGBT from the inspection tool body 1, which is convenient to use.
[0027] The use process of the present utility model is as follows: When it is necessary to detect the positions of components on a rectangular press-fit IGBT, the staff can place the rectangular press-fit IGBT into the limiting frame 4 to limit the press-fit IGBT, and then align the rectangular detection plate 6 and press it down on the press-fit IGBT, and detect the positions of the components on the press-fit IGBT through a number of first detection holes 7. If the positions of the components on the press-fit IGBT are correct, they can pass through the first detection holes 7. If there are errors in the positions of the components on the press-fit IGBT, they cannot pass through the first detection holes 7;
[0028] When it is necessary to detect the positions of components on a circular press-fit IGBT with a large diameter, the staff can place the circular press-fit IGBT into the first limiting groove 9, and then align the first circular detection plate 10 with the press-fit IGBT and press it downwards to detect the positions of the components on the press-fit IGBT through a number of second detection holes 11. When it is necessary to detect the positions of components on a circular press-fit IGBT with a small diameter, the staff can place the circular press-fit IGBT into the second limiting groove 13, and then align the second circular detection plate 14 with the press-fit IGBT and press it downwards to detect the positions of the components on the press-fit IGBT through a number of third detection holes 15;
[0029] After the detection is completed, the staff turns on the electric push rod 16. When the electric push rod 16 operates, it can drive the ejector plate 18 to move up and down, so that it is convenient to eject and remove the detected press-fit IGBT from the jig body 1, and the use is convenient.
[0030] The above is only a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention falls within the scope of protection required by the present invention.
Claims
1. A crimped IGBT voltage-dividing and position-limiting frame combination inspection tool, comprising an inspection tool body (1) and a base (2). Vertical support rods (3) are fixedly arranged at the four corners of the top of the base (2). The bottom of the inspection tool body (1) is fixed to the tops of the four support rods (3), and is characterized in that: At the top edge of the fixture body (1), a first pressing and detecting component for detecting rectangular press-fit IGBTs is fixed. At the center of the top of the fixture body (1), a second pressing and detecting component for detecting circular press-fit IGBTs is provided. At the bottom of the fixture body (1), an ejecting component is fixed.
2. The combined inspection tool for the press-fit IGBT voltage-dividing and position-limiting frame according to claim 1, characterized in that: The first pressing and detecting component includes a limiting frame (4). The bottom of the limiting frame (4) is fixed at the top edge of the fixture body (1), and a first placement groove (5) is formed at the top of the limiting frame (4).
3. The combined inspection fixture for the press-fit IGBT voltage-dividing and limiting frame according to claim 2, characterized in that: A rectangular detection plate (6) is placed in the first placement groove (5), and a plurality of first detection holes (7) are formed in the rectangular detection plate (6).
4. A crimping-type IGBT voltage-dividing and position-limiting frame combination inspection tool according to claim 1, characterized in that: The second pressing and detecting component includes a second placement groove (8). The second placement groove (8) is formed at the center of the top of the fixture body (1), and a first limiting groove (9) is formed at the bottom of the inner wall of the second placement groove (8).
5. The combination inspection tool for the press-fit IGBT voltage-dividing and position-limiting frame according to claim 4, wherein: A first circular detection plate (10) is placed in the second placement groove (8), and a plurality of second detection holes (11) are formed in the first circular detection plate (10).
6. The combined inspection tool for the crimped IGBT voltage dividing and limiting frame according to claim 4, wherein: At the center of the bottom of the inner wall of the first limiting groove (9), a third placement groove (12) is formed, and a second limiting groove (13) is formed at the bottom of the inner wall of the third placement groove (12).
7. The combined inspection tool for the press-fit IGBT voltage-dividing and position-limiting frame according to claim 6, characterized in that: A second circular detection plate (14) is placed inside the third placement groove (12), and a plurality of third detection holes (15) are formed in the second circular detection plate (14).
8. The combined inspection fixture for the press-fit IGBT voltage-dividing and position-limiting frame according to claim 6, characterized in that: The ejecting component includes a vertically arranged electric push rod (16). The top of the electric push rod (16) is fixed at the center of the bottom of the fixture body (1). A through hole (17) is vertically formed at the center of the bottom of the inner wall of the second limiting groove (13). The top end of the output shaft of the electric push rod (16) vertically passes through the through hole (17), and a top plate (18) is fixed at the top end of the output shaft of the electric push rod (16). The top plate (18) is located in the second limiting groove (13).