Fool-proof auxiliary jig
By designing anti-dust auxiliary fixtures, using the positioning grooves and marking structures of the base plate and cover plate, the problem of IGBT placement errors is solved, the production yield and placement accuracy are improved, and the production cost is reduced, which is suitable for a wide range of applications.
Patent Information
- Application Number
- CN202420054553.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-09
AI Technical Summary
In actual production, errors are prone to occur when manually placing IGBTs, resulting in high product defect rate. An anti-dust auxiliary fixture is needed to improve production yield.
An anti-dust auxiliary fixture is designed, including a base plate and a cover plate. The base plate is provided with a base, a first vertical wall and a second vertical wall. One end of the cover plate is rotatably connected to the first vertical wall. A multiple positioning grooves are provided on the cover plate. and marks, the marks are close to and corresponding to the positioning slots, used to place them according to the marks when placing the IGBTs. When the cover plate is in the cover-fit state, the positioning slots are in communication with the placement slots, the handles come into contact with the second vertical wall, and the limiting projection ensures the cover plate and the base. relative position.
Through this anti-moment auxiliary fixture, the phenomenon of IGBT misplacement and misplacement is avoided, the production yield and placement accuracy are improved, and the structure is simple, easy to manufacture, low cost, and suitable for large-scale promotion.
Smart Images
Figure CN222146173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling fixtures, in particular to a fool-proof auxiliary fixture. Background Art
[0002] Insulate-Gate Bipolar Transistor (IGBT) is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor). It has the advantages of both MOSFET's high input impedance and GTR's low on-state voltage drop. GTR has low saturation voltage drop and high current density, but high drive current; MOSFET has low drive power and fast switching speed, but high on-state voltage drop and low current density. IGBT combines the advantages of the above two devices, with low drive power and low saturation voltage drop, so its application field is very wide.
[0003] In the actual production process, it is sometimes necessary to place multiple IGBTs of different types on the same board. It is easy to make mistakes when placing them manually, resulting in individual IGBTs being placed in the wrong position on the board, resulting in a high product defect rate. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a fool-proof auxiliary fixture used when placing an IGBT on a plate, wherein the fool-proof auxiliary fixture can play a fool-proof role, thereby improving the production yield.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an anti-fool auxiliary fixture, including a bottom plate and a cover plate, the bottom plate is provided with a base, a first vertical wall and a second vertical wall, the base is located between the first vertical wall and the second vertical wall, and the top surface of the base is provided with a placement groove for placing the plate; one end of the cover plate is rotatably connected to the first vertical wall, and the other end of the cover plate is provided with a handle, and the cover plate is provided with a plurality of positioning grooves and a plurality of marks, the marks are close to the positioning grooves and are arranged one-to-one with the positioning grooves, and at least two of the marks are different; when the cover plate is in a covering state, the cover plate is located above the placement groove, the bottom of the positioning groove is connected to the placement groove, the handle contacts the top surface of the second vertical wall and the end of the handle protrudes in a direction away from the base relative to the side of the second vertical wall away from the base.
[0006] Furthermore, the top surface of the second vertical wall has two limiting protrusions protruding upward, and when the cover plate is in a closed state, a partial area of the handle is located between the two limiting protrusions.
[0007] Furthermore, the limiting protrusion and the second vertical wall are an integral structure formed by integral processing.
[0008] Furthermore, the mark includes at least one of a color mark, a pattern mark and a text mark.
[0009] Furthermore, the first vertical wall is rotatably connected to the cover plate via a hinge.
[0010] Furthermore, at least one of the bottom plate, the base, the first vertical wall and the second vertical wall is made of bakelite.
[0011] The beneficial effect of the utility model is that when the assembler uses the fool-proof auxiliary fixture, he first puts the plate into the placement groove, then rotates the cover plate to make the cover plate in a closed state, and then places the corresponding type of IGBT into the positioning groove corresponding to the mark according to the mark on the cover plate. After all the IGBTs are placed, the cover plate is rotated to make the cover plate in an open state, and the IGBT remains on the plate. At this time, the plate can be taken out from the base. The whole process is simple and clear, and the fool-proof effect is achieved, which avoids the phenomenon of misplacing or misplacing the IGBT by the staff, and is beneficial to ensuring the production yield. At the same time, since the positioning groove on the cover plate can play a positioning role, it is also beneficial to improve the accuracy of the IGBT placement position, thereby greatly improving the production yield. In addition, the fool-proof auxiliary fixture has a simple structure, is easy to process and manufacture, has a low production cost, and is easy to promote and apply on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic structural diagram of the fool-proof auxiliary fixture of the first embodiment of the utility model (the cover plate is in the covered state).
[0013] Description of labels:
[0014] 1. Bottom plate;
[0015] 2. Cover plate; 21. Positioning groove; 22. Mark; 23. Handle;
[0016] 3. Base; 31. Placement slot;
[0017] 4. The first vertical wall;
[0018] 5. Second vertical wall; 51. Limiting protrusion;
[0019] 6. Hinge;
[0020] 7. IGBT. DETAILED DESCRIPTION
[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.
[0022] Please refer to Figure 1, a fool-proof auxiliary fixture includes a bottom plate 1 and a cover plate 2, wherein the bottom plate 1 is provided with a base 3, a first vertical wall 4 and a second vertical wall 5, the base 3 is located between the first vertical wall 4 and the second vertical wall 5, and the top surface of the base 3 is provided with a placement groove 31 for placing a plate; one end of the cover plate 2 is rotatably connected to the first vertical wall 4, and the other end of the cover plate 2 is provided with a handle 23, and the cover plate 2 is provided with a plurality of positioning grooves 21 and a plurality of marks 22, the marks 22 are close to the positioning grooves 21 and are arranged one-to-one with the positioning grooves 21, and at least two of the marks 22 are different; when the cover plate 2 is in a covered state, the cover plate 2 is located above the placement groove 31, the bottom of the positioning groove 21 is connected to the placement groove 31, the handle 23 contacts the top surface of the second vertical wall 5, and the end of the handle 23 protrudes in a direction away from the base 3 relative to the side of the second vertical wall 5 away from the base 3.
[0023] From the above description, it can be seen that the beneficial effects of the utility model are: the anti-fool auxiliary fixture can play an anti-fool effect, avoiding the phenomenon of staff misplacing or misplacing IGBT7, which is beneficial to ensuring the production yield. At the same time, since the positioning groove 21 on the cover plate 2 can play a positioning role, it is also beneficial to improve the accuracy of the placement position of IGBT7, thereby improving the production yield to a greater extent; in addition, the anti-fool auxiliary fixture has a simple structure, is easy to process and manufacture, has a low production cost, and is easy to promote and apply on a large scale. The presence of the handle 23 at the end of the cover plate 2 can facilitate the staff to open and close the cover plate 2, which can provide convenience for the staff's operation.
[0024] Furthermore, the top surface of the second vertical wall 5 has two limiting protrusions 51 protruding upwards, and when the cover plate 2 is in the covering state, a partial area of the handle 23 is located between the two limiting protrusions 51 .
[0025] From the above description, it can be seen that the existence of the limiting protrusion 51 can ensure the relative position relationship between the cover plate 2 and the base 3 in the covered state to a certain extent, thereby ensuring that the positioning groove 21 on the cover plate 2 can be accurately aligned with the plate in the placement groove 31.
[0026] Furthermore, the limiting protrusion 51 and the second vertical wall 5 are an integrated structure formed integrally.
[0027] It can be seen from the above description that the integral processing of the limiting protrusion 51 and the second vertical wall 5 can facilitate the production of the fool-proof auxiliary fixture.
[0028] Furthermore, the mark 22 includes at least one of a color mark, a pattern mark and a text mark.
[0029] It can be seen from the above description that the specific type of the mark 22 can be set according to actual needs.
[0030] Furthermore, the first vertical wall 4 is rotatably connected to the cover plate 2 via a hinge 6 .
[0031] Furthermore, at least one of the bottom plate 1 , the base 3 , the first vertical wall 4 and the second vertical wall 5 is made of bakelite.
[0032] From the above description, it can be seen that the production cost of this fool-proof auxiliary fixture is low.
[0033] Embodiment 1
[0034] Please refer to Figure 1 , Embodiment 1 of the present utility model is: a fool-proof auxiliary fixture, used to assist workers in placing a variety of IGBT7 on a plate.
[0035] The fool-proof auxiliary fixture includes a base plate 1 and a cover plate 2, wherein the base plate 1 is provided with a base 3, a first vertical wall 4 and a second vertical wall 5, the base 3 is located between the first vertical wall 4 and the second vertical wall 5, and the top surface of the base 3 is provided with a placement groove 31 for placing a plate; one end of the cover plate 2 is rotatably connected to the first vertical wall 4, and optionally, the first vertical wall 4 is rotatably connected to the cover plate 2 through a hinge 6, and the other end of the cover plate 2 is provided with a handle 23, and the cover plate 2 is provided with a plurality of positioning grooves 21 and a plurality of marks 22, the marks 22 are close to the positioning grooves 21 and are arranged one-to-one with the positioning grooves 21, and at least two of the marks 22 are different; when the cover plate 2 is in a covered state, the cover plate 2 is located above the placement groove 31, the bottom of the positioning groove 21 is connected to the placement groove 31, the handle 23 contacts the top surface of the second vertical wall 5, and the end of the handle 23 protrudes in a direction away from the base 3 relative to the side of the second vertical wall 5 away from the base 3.
[0036] Optionally, the top surface of the second vertical wall 5 has two upwardly protruding limit protrusions 51, and when the cover plate 2 is in the covered state, a partial area of the handle 23 is located between the two limit protrusions 51. In detail, when the cover plate 2 is in the covered state, the bottom surface of the handle 23 contacts the top surface of the second vertical wall 5, and the opposite sides of the handle 23 contact the sides of the two limit protrusions 51 that are close to each other, so that the cover plate 2 and the base 3 in the covered state can be accurately positioned, and at the same time, it is helpful to reduce the processing accuracy requirements and assembly accuracy requirements of the parts of the anti-fool auxiliary fixture, thereby reducing the manufacturing cost of the anti-fool auxiliary fixture.
[0037] Preferably, the limiting protrusion 51 and the second vertical wall 5 are an integrated structure formed integrally.
[0038] Optionally, at least one of the bottom plate 1 , the base 3 , the first vertical wall 4 and the second vertical wall 5 is made of bakelite.
[0039] The mark 22 includes at least one of a color mark, a pattern mark, and a text mark, which can be selected and set according to actual needs. In this embodiment, the mark 22 is a color mark, and three color marks are used, namely, "red", "blue", and "yellow". In other embodiments, the mark 22 can be Chinese characters, letters, graphics, etc.
[0040] In summary, the fool-proof auxiliary fixture provided by the utility model can play a fool-proof effect, avoid the phenomenon of workers misplacing or misplacing IGBTs, and help ensure the production yield. At the same time, since the positioning groove on the cover plate can play a positioning role, it is also beneficial to improve the accuracy of the IGBT placement position, thereby improving the production yield to a greater extent. In addition, the fool-proof auxiliary fixture has a simple structure, is easy to process and manufacture, has a low production cost, and is easy to promote and apply on a large scale. The presence of the handle at the end of the cover plate can facilitate the staff to open and close the cover plate, which can provide convenience for the staff's operation.
[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. Anti-fool auxiliary fixture, characterized in that: The invention comprises a bottom plate and a cover plate, wherein a base, a first vertical wall and a second vertical wall are provided on the bottom plate, the base is located between the first vertical wall and the second vertical wall, and a placement groove for placing a plate is provided on the top surface of the base; one end of the cover plate is rotatably connected to the first vertical wall, and a handle is provided on the other end of the cover plate, and a plurality of positioning grooves and a plurality of marks are provided on the cover plate, the marks are close to the positioning grooves and are arranged one-to-one with the positioning grooves, and at least two of the marks are different; when the cover plate is in a covering state, the cover plate is located above the placement groove, the bottom of the positioning groove is connected to the placement groove, the handle contacts the top surface of the second vertical wall, and the end of the handle protrudes in a direction away from the base relative to the side of the second vertical wall away from the base.
2. The foolproof auxiliary fixture according to claim 1, characterized in that: The top surface of the second vertical wall has two limiting protrusions protruding upward, and when the cover plate is in a closed state, a partial area of the handle is located between the two limiting protrusions.
3. The foolproof auxiliary fixture according to claim 2, characterized in that: The limiting protrusion and the second vertical wall are an integrated structure formed by integral processing.
4. The foolproof auxiliary fixture according to claim 1, characterized in that: The mark includes at least one of a color mark, a pattern mark and a text mark.
5. The foolproof auxiliary fixture according to claim 1, characterized in that: The first vertical wall is rotatably connected to the cover plate via a hinge.
6. The foolproof auxiliary fixture according to claim 1, characterized in that: At least one of the bottom plate, the base, the first vertical wall and the second vertical wall is made of bakelite.