Positioning clamp for machining electric vehicle controller shell

By designing limit and adjustment components for a multi-point positioning fixture, the problem of unstable positioning caused by wear during the machining of electric vehicle controller housing was solved, achieving stable positioning and precise machining of the housing.

CN223617252UActive Publication Date: 2025-12-02JIANGSU NIU MO WANG ELECTRIC VEHICLE MANUFACTURING CO LTD
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Patent Information

Application Number
CN202423220273.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-02
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing positioning fixtures used for machining electric vehicle controller housings become unstable due to wear during use, affecting the machining process.

Method used

A positioning fixture including a first positioning component and a second positioning component is designed. Through the combination of a limiting part, a limiting plate, a pressure part and an adjustment component, multi-point stable positioning of the housing is achieved, and precise adjustment is achieved by using the transmission of a motor and a lead screw.

Benefits of technology

This method achieves stable positioning of the electric vehicle controller housing, improves processing accuracy and efficiency, and avoids positioning instability caused by wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of electric vehicle controller shell machining, particularly relates to a positioning clamp for electric vehicle controller shell machining, and provides the following scheme that the positioning clamp comprises a workbench and a positioning mechanism installed on the workbench; the positioning mechanism comprises a first positioning assembly, a second positioning assembly and an adjusting assembly used for adjusting the second positioning assembly. By arranging the first limiting part, the first limiting plate, the first pressure applying part, the second limiting part, the second limiting plate and the second pressure applying part, the shell can be placed in the middle between the second limiting part and the first limiting part, and the side edge of the shell can be positioned by subsequently adjusting the first limiting plate, the second limiting part and the second limiting plate. The first pressure applying part and the second pressure applying part can limit the upper surface of the shell, and therefore it is guaranteed that the shell is stably limited.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle controller housing processing technology, and in particular to a positioning fixture for processing electric vehicle controller housings. Background Technology

[0002] Electric vehicles, also known as battery vehicles, are personal transportation tools powered by batteries and driven by electric motors. Electric vehicles can be divided into two-wheeled vehicles, recreational electric vehicles, electric tricycles, etc. Typically, an electric vehicle consists of major components such as a frame, controller, wheels, motor, battery, charger, shock absorber, and instrument system. The controller is the core control device used to control the starting, running, forward and backward movement, speed, and stopping of the electric vehicle motor, as well as other electronic components of the electric vehicle.

[0003] During the production process, the positioning fixtures for controller housings are mostly single-size fixed-size fixtures, which can only position controller housings of one size. As the usage time increases, the fixtures will wear out, causing the controller housings they hold to wobble and affecting the processing progress. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a positioning fixture for machining electric vehicle controller housings, thereby solving the problems mentioned in the background section.

[0005] A positioning fixture for machining an electric vehicle controller housing includes a worktable and a positioning mechanism mounted on the worktable. The positioning mechanism includes a first positioning component, a second positioning component, and an adjustment component for adjusting the second positioning component.

[0006] The first positioning component includes a limiting part, a screw, a limiting plate, a sliding rod, an adjusting bolt, a limiting nut, and a pressure applying part. The screw consists of two opposing parts installed at both ends of the limiting part. The limiting plate is fixed to the end of the screw and slides along the sliding groove on the limiting part. The sliding rod is installed in the groove on the upper end face of the limiting part. The adjusting bolt consists of two opposing parts that slide on the sliding rod. The pressure applying part is fitted onto the adjusting bolt and its vertical freedom is restricted by the nut on the adjusting bolt.

[0007] The adjustment assembly includes a motor and a lead screw. The motor consists of two opposing motors mounted on a limiting part, and the lead screw is mounted at the output end of the motor.

[0008] The second positioning component includes a second limiting part, a second limiting plate, a second screw, a second fixing rod, a second adjusting bolt, and a second pressure applying part. The two ends of the second limiting part are connected to the lead screw drive and slide along the slide rail on the worktable. The second limiting plate is movably inserted into the middle of the second limiting part through the fixing rod. The second screw passes through the middle of the second limiting part and is fixedly connected to the second limiting plate. A nut on the second screw restricts its movement away from the second limiting part. The second adjusting bolt is fixed to the upper end face of the second limiting plate. The second pressure applying part is sleeved on the second adjusting bolt and its vertical freedom is restricted by the nut on the second adjusting bolt.

[0009] By adopting the above technical solution, the housing can be placed and quickly positioned and restricted.

[0010] The second limiting part is a hollow trapezoidal structure with a stepped structure on its inclined surface.

[0011] By adopting the above technical solution, the corners of the shell can be restricted, thereby stabilizing the shell.

[0012] The adjusting bolt has three nuts, two of which are used to restrict the vertical freedom of the pressure part, and the bottommost nut is used to limit the movement of the adjusting bolt along the slide bar.

[0013] By adopting the above technical solution, the height of the pressure application part can be adjusted while the movement of the adjusting bolt can be restricted.

[0014] There are two fixing rods, which are fixed to both sides of one end face of the limiting plate.

[0015] By adopting the above technical solution, the second assisted limit plate can move horizontally.

[0016] The center point of the second limiting plate, the center point of the second limiting part, and the center point of the first limiting part are all located on the same vertical cross section.

[0017] By adopting the above technical solution, the shell is stably limited.

[0018] The beneficial effects of this utility model of a positioning fixture for machining electric vehicle controller housings are:

[0019] By setting up limiting part one, limiting plate one, pressure part one, limiting part two, limiting plate two, and pressure part two, the housing can be placed in the middle between limiting part two and limiting part one. Subsequently, adjusting limiting plate one, limiting part two, and limiting plate two can position the side of the housing, while pressure part one and pressure part two can restrict the upper surface of the housing, thereby ensuring that the housing is stably restricted. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the positioning fixture for machining the electric vehicle controller housing proposed in this utility model;

[0021] Figure 2 This is a drawing of a positioning fixture for machining the electric vehicle controller housing proposed in this utility model.

[0022] In the diagram: 1. Workbench; 101. Slide rail; 2. Limiting part one; 3. Screw one; 4. Limiting plate one; 5. Slide rod; 6. Adjusting bolt one; 7. Limiting nut; 8. Pressure applying part one; 9. Motor; 10. Lead screw; 11. Limiting part two; 12. Limiting plate two; 13. Screw two; 14. Fixing rod; 15. Adjusting bolt two; 16. Pressure applying part two. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0024] Reference Figure 1-2 A positioning fixture for processing an electric vehicle controller housing includes a worktable 1 and a positioning mechanism mounted on the worktable 1. The positioning mechanism includes a first positioning component, a second positioning component, and an adjustment component for adjusting the second positioning component.

[0025] The first positioning component includes a limiting part 2, a screw 3, a limiting plate 4, a sliding rod 5, an adjusting bolt 6, a limiting nut 7, and a pressure applying part 8. The screw 3 consists of two opposing parts installed at both ends of the limiting part 2. The limiting plate 4 is fixed to the end of the screw 3 and slides along the sliding groove on the limiting part 2. The sliding rod 5 is installed in the groove on the upper end face of the limiting part 2. The adjusting bolt 6 consists of two opposing parts that slide on the sliding rod 5. The pressure applying part 8 is sleeved on the adjusting bolt 6 and its vertical freedom is restricted by the nut on the adjusting bolt 6.

[0026] The adjustment assembly includes a motor 9 and a lead screw 10. Two motors 9 are mounted opposite each other on the limiting part 2, and the lead screw 10 is mounted at the output end of the motor 9.

[0027] The second positioning component includes a limiting part 11, a limiting plate 12, a screw 13, a fixing rod 14, an adjusting bolt 15, and a pressure applying part 16. The two ends of the limiting part 11 are connected to the lead screw 10 and slide along the slide rail 101 on the worktable 1. The limiting plate 12 is movably inserted into the middle of the limiting part 11 through the fixing rod 14. The screw 13 passes through the middle of the limiting part 11 and is fixedly connected to the limiting plate 12. A nut on the screw 13 restricts the screw 13 from moving away from the limiting part 2. The adjusting bolt 15 is fixed to the upper end face of the limiting plate 12. The pressure applying part 16 is sleeved on the adjusting bolt 15 and its vertical freedom is restricted by the nut on the adjusting bolt 15.

[0028] One end face of the housing is attached to the middle of the inner side of the limiting part 2. The screws 3 on both sides of the limiting part 2 are pushed so that the two limiting plates 4 are attached to the other two opposite sides of the housing. The nut on the screw 3 is rotated so that the nut is attached to the inner wall of the limiting part 2, so as to prevent the screw 3 from moving when the limiting plate 4 is attached to the side of the housing. Then the motor 9 can be driven to drive the limiting part 11 to slide along the slide rail 101 through the lead screw 10, so that the inclined side of the limiting part 11 contacts the two corners of the other end of the housing. At this time, the screw 13 can be rotated to push the limiting plate 12 to be attached to the other end face of the housing. The nut on the screw 13 is rotated so that the screw 13 is attached to the middle surface of the limiting part 11, restricting the movement of the screw 13, thereby limiting and positioning the side of the housing.

[0029] Then, move the two adjusting bolts 6 on the slide bar 5 to adjust the distance between them so that the pressure part 8 is in contact with the upper surface of the housing. Then, rotate the two nuts on the adjusting bolt 6 located above and below the pressure part 8 to lock the pressure part 8. Rotate the lowermost nut on the adjusting bolt 6 to press it tightly against the limiting part 2, thus restricting the movement of the adjusting bolt 6 along the slide bar 5. Next, make the pressure part 16 fit against the upper surface of the housing. Rotate the two nuts on the adjusting bolt 6 located above and below the pressure part 16 to lock the pressure part 16, thus completing the positioning of the upper end face of the housing.

[0030] The limiting part 21 has a hollow trapezoidal structure, and a stepped structure is provided on its inclined surface; the step is provided to make the corner positioning of the shell more stable.

[0031] The adjusting bolt 6 is equipped with three nuts. Two of them are used to restrict the vertical freedom of the pressure part 8. The bottom nut is used to limit the movement of the adjusting bolt 6 along the slide bar 5. The two nuts above limit the pressure part 8, adjust the height of the pressure part 8, adapt to the housing, and restrict the upper surface of the housing. The bottom nut can be rotated to fit against the limiting part 2, so that the nut contacts the limiting part 2 and is tightened to restrict the movement of the adjusting bolt 6.

[0032] There are two fixing rods 14, which are fixed on both sides of one end face of the second limiting plate 12. When the second screw 13 is rotated, the second limiting plate 12 can be pushed to move, and the fixing rods 14 move on the second limiting part 11 to assist the second limiting plate 12 to move laterally.

[0033] The center point of the second limiting plate 12, the center point of the second limiting part 11, and the center point of the first limiting part 2 are all located on the same vertical section. The housing can be placed in the middle between the second limiting part 11 and the first limiting part 2. The side of the housing can be positioned by adjusting the first limiting plate 4, the second limiting part 11, and the second limiting plate 12. The first pressing part 8 and the second pressing part 16 can restrict the upper surface of the housing, thereby ensuring that the housing is stably restricted.

[0034] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A positioning fixture for machining an electric vehicle controller housing, comprising a worktable (1) and a positioning mechanism mounted on the worktable (1), characterized in that: The positioning mechanism includes a first positioning component, a second positioning component, and an adjustment component for adjusting the second positioning component; The first positioning component includes a limiting part (2), a screw (3), a limiting plate (4), a slide rod (5), an adjusting bolt (6), a limiting nut (7), and a pressure part (8). The screw (3) consists of two opposing parts installed at both ends of the limiting part (2). The limiting plate (4) is fixed to the end of the screw (3) and slides along the slide groove on the limiting part (2). The slide rod (5) is installed in the groove on the upper end face of the limiting part (2). The adjusting bolt (6) consists of two opposing parts that slide on the slide rod (5). The pressure part (8) is sleeved on the adjusting bolt (6) and its vertical freedom is restricted by the nut on the adjusting bolt (6). The adjustment assembly includes a motor (9) and a lead screw (10). The motor (9) consists of two opposing motors mounted on the limiting part (2), and the lead screw (10) is mounted at the output end of the motor (9). The second positioning component includes a limiting part two (11), a limiting plate two (12), a screw two (13), a fixing rod (14), an adjusting bolt two (15), and a pressure part two (16). The two ends of the limiting part two (11) are connected to the lead screw (10) and slide along the slide rail (101) on the worktable (1). The limiting plate two (12) is movably inserted into the middle of the limiting part two (11) through the fixing rod (14). The screw two (13) passes through the middle of the limiting part two (11) and is fixedly connected to the limiting plate two (12). The screw two (13) has a nut that restricts the screw two (13) from moving away from the limiting part one (2). The adjusting bolt two (15) is fixed to the upper end face of the limiting plate two (12). The pressure part two (16) is sleeved on the adjusting bolt two (15) and its vertical freedom is restricted by the nut on the adjusting bolt two (15).

2. The positioning fixture for machining the electric vehicle controller housing according to claim 1, characterized in that: The limiting part 2 (11) is a hollow trapezoidal structure with a stepped structure on its inclined surface.

3. The positioning fixture for machining the electric vehicle controller housing according to claim 2, characterized in that: The adjusting bolt (6) is provided with three nuts, two of which are used to restrict the vertical freedom of the pressure part (8), and the bottommost nut is used to limit the movement of the adjusting bolt (6) along the slide bar (5).

4. The positioning fixture for machining the electric vehicle controller housing according to claim 3, characterized in that: There are two fixing rods (14), which are fixed on both sides of one end face of the limiting plate (12).

5. The positioning fixture for machining the electric vehicle controller housing according to claim 4, characterized in that: The center point of the second limiting plate (12), the center point of the second limiting part (11), and the center point of the first limiting part (2) are set on the same vertical section.