Motor shell cooling water jacket clamp

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By designing the motor shell cooling water jacket fixture, and using the positioning pin to threaded connection between the circular grooves of the top plate, the accurate and rapid positioning of the workpiece is achieved, solving the problems of time-consuming and labor-consuming and error-intensive correction in the prior art, and improving processing efficiency and product quality.

CN222588876UActive Publication Date: 2025-03-11ZHEJIANG HANSON PRECISE MASCH CO LTD

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Patent Information

Application Number: CN202421092048.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-20
Publication Date: 2025-03-11
Estimated Expiration: 2034-05-20

AI Technical Summary

Technical Problem

In the prior art, when processing the motor shell cooling water jacket workpiece, it takes time and effort to correct the inner circle position through a dial, which affects the processing efficiency, and can easily lead to large correction deviations and lead to poor product.

Method used

A motor shell cooling water jacket fixture is designed, including a bottom plate, a support column, a top plate and a positioning pin. It is threadedly connected to the round groove of the top plate through a positioning pin, and accurately positioned using the screw holes at the end of the motor shell cooling water jacket.

Benefits of technology

It realizes accurate and rapid positioning of workpieces, improves processing efficiency, reduces errors, and improves product quality.

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Abstract

The utility model provides a motor casing cooling water jacket clamp. The motor shell cooling water jacket clamp comprises a bottom plate, supporting columns, a top plate and positioning pins. The supporting columns are distributed at the top of the bottom plate at equal intervals, a circular ring is defined by the multiple supporting columns, and the supporting columns are detachably connected with the bottom plate. The top plate is detachably connected with the supporting column, a circular groove is formed in the top of the top plate, and the diameter of the circular groove is matched with the outer diameter of a motor shell cooling water jacket. The positioning pin is movably arranged in the circular groove of the top plate, the top of the positioning pin is truncated cone-shaped, and the diameter is gradually reduced from bottom to top; and the distribution of the plurality of positioning pins in the circular groove is matched with the distribution of screw holes in the end part of the motor shell cooling water jacket, so that the motor shell cooling water jacket is accurately positioned. According to the utility model, the screw hole on the end face of the OP10 workpiece of the motor casing cooling water jacket is used as a reference for positioning, the matched positioning pin is arranged, and the workpiece is directly placed on the positioning pin of the fixture, so that accurate and rapid positioning is realized, the processing efficiency is improved, and errors can be effectively avoided.

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Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a motor housing cooling water jacket clamp. Background Art

[0002] There are many machining procedures for the motor housing cooling water jacket. When the motor housing cooling water jacket workpiece is processed in the OP20 process, it is necessary to ensure that the workpiece corresponds to the OP10 processing position. The original method is to use a dial indicator to calibrate the inner circle of the workpiece after OP10 processing and lock the workpiece. After the calibration is completed, the OP20 process is continued based on the inner circle position. However, this calibration method is time-consuming and labor-intensive. Calibration one by one affects the machining efficiency, and it is easy for the operator to have a large calibration deviation, resulting in defective products. In addition, there is no fixed reference loading position when loading, which is more arbitrary. Utility Model Content

[0003] Based on this, it is necessary to provide a motor housing cooling water jacket fixture to address the problems of low efficiency and large error in finding the reference when correcting the inner circle of the motor housing cooling water jacket workpiece using a dial indicator.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A motor housing cooling water jacket clamp comprises a bottom plate, a supporting column, a top plate and positioning pins.

[0006] The support columns are evenly distributed on the top of the base plate, and the multiple support columns form a circular ring shape. The support columns are detachably connected to the base plate;

[0007] The top plate is detachably connected to the support column, and a circular groove is provided on the top of the top plate, the diameter of which matches the outer diameter of the cooling water jacket of the motor housing;

[0008] The locating pin is movably arranged in the circular groove of the top plate. The top of the locating pin is in the shape of a truncated cone, and the diameter gradually decreases from bottom to top. The distribution of multiple locating pins in the circular groove coincides with the distribution of screw holes at the end of the motor casing cooling water jacket, so as to accurately position the motor casing cooling water jacket.

[0009] Furthermore, the positioning pin is threadedly connected to the circular groove of the top plate.

[0010] Furthermore, an arc-shaped opening is opened in the circular groove of the top plate, one end of the positioning pin extends horizontally to form a limiting protrusion, and the other end passes through the arc-shaped opening upward from the bottom of the top plate and is located in the circular groove. One end of the positioning pin passing through the arc-shaped opening is threadedly connected to a limiting nut, and a receiving groove for accommodating the limiting nut is opened at the top of the arc-shaped opening.

[0011] Furthermore, an arc-shaped sliding hole is opened in the circular groove of the top plate, one end of the locating pin passes through the arc-shaped sliding hole and is located below the top plate, the part of the locating pin located in the arc-shaped sliding hole extends horizontally to the inside of the side wall of the arc-shaped sliding hole, and a flange nut is threadedly connected to the bottom end of the locating pin and contacts the bottom of the top plate.

[0012] Furthermore, a bushing is provided on the top of the positioning pin.

[0013] Furthermore, the bottom plate and the top plate are in annular shape, are coaxially arranged, and the inner diameters of the top plate and the bottom plate are at least the same as the inner diameter of the motor housing cooling water jacket.

[0014] Furthermore, a plurality of mounting holes for connecting to the processing table are longitudinally opened on the surface of the bottom plate.

[0015] Furthermore, a limiting assembly for limiting the longitudinal movement of the motor housing cooling water jacket is installed at the center of the base plate.

[0016] Compared with the prior art, the beneficial effects of the utility model include:

[0017] 1. The fixture of the utility model is positioned by taking the screw hole on the end face of the motor housing cooling water jacket OP10 workpiece as a reference, and a matching positioning pin is set. The workpiece is directly placed on the positioning pin of the fixture, so as to achieve accurate and rapid positioning, improve processing efficiency, effectively avoid errors, and improve product quality;

[0018] 2. The positioning pin of the utility model can be adjusted according to the position of the screw hole on the end face of the OP10 workpiece, and has adaptability. The various components of the fixture are assembled into one, and can be reorganized and adjusted according to the shape change of the OP10 workpiece. The components can be replaced when worn, reducing unnecessary waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 This is a schematic diagram of the structure of a motor housing cooling water jacket fixture introduced in Example 1 of the utility model;

[0021] Figure 2 Based on Figure 1 A top view of the base plate;

[0022] Figure 3 This is a schematic diagram of the arc-shaped opening and the limiting nut introduced in Example 2;

[0023] Figure 4 Schematic diagram of the arc-shaped sliding hole and the flanged nut introduced in Example 3.

[0024] Notes in the figure: 1. Base plate; 11. Mounting hole; 2. Support column; 3. Top plate; 31. Arc-shaped opening; 32. Limit nut; 33. Arc-shaped sliding hole; 34. Nut with flange; 4. Locating pin. DETAILED DESCRIPTION

[0025] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0026] Example 1

[0027] See also Figure 1 This embodiment introduces a motor housing cooling water jacket fixture, which is mainly composed of a bottom plate 1, a support column 2, a top plate 3 and a positioning pin 4.

[0028] The bottom plate 1 is in the shape of a ring, and a plurality of mounting holes 11 are longitudinally opened on its surface. Some mounting holes 11 are close to the inner circumference and are used to connect with the support columns 2, and some mounting holes 11 are used to connect the bottom plate 1 with the machine tool worktable. Bolts, screws and other parts are passed through the mounting holes 11 to mount the bottom plate 1 on the machine tool worktable and the support columns 2 on the bottom plate 1. The support columns 2 are equidistantly distributed on the top of the bottom plate 1, and a plurality of support columns 2 can be enclosed in a ring shape to match the shape of the top plate 3 and be connected to the top plate 3.

[0029] The bottom plate 1 may also be provided with a groove or an embedding groove with a "convex" shape in the longitudinal section. The bottom plate can be used in conjunction with other products, or it can be used for fixing during installation. For example, after the bottom plate 1 is placed on the machine tool workbench, the bottom plate 1 can be fixed by fastening plates and other components entering the groove or embedding groove. It is determined according to actual needs. Therefore, the mounting hole 11, the groove, and the embedding groove can be used at the same time or only one or two of them can be used as needed.

[0030] Since the cooling water jacket of the motor housing is similar to a cylinder as a whole, the top plate 3 is preferably annular, and the outer diameter of the top plate 3 is smaller than the outer diameter of the bottom plate 1, and the inner diameter can be consistent with the inner diameter of the bottom plate 1, and the outer diameter of the top plate 3 is larger than the outer diameter of the ring enclosed by the support column 2. A circular groove is opened on the top of the top plate 3, and the circular groove is connected to the inner circle of the top plate 3. A hole is opened longitudinally in the circular groove for bolts to pass through, so that the top plate 3 and the support column 2 can be detachably connected. When the top plate 3 is installed on the top of the support column 2, it is coaxially arranged with the bottom plate 1.

[0031] There is a screw hole longitudinally opened in the circular groove of the top plate 3, and the surface of the positioning pin 4 has a thread, so that the top plate 3 and the positioning pin 4 are threadedly connected. The distribution of the positioning pin 4 is consistent with the distribution of the screw holes on the end face of the motor housing cooling water jacket. One end of the positioning pin 4 is located in the circular groove. When the motor housing cooling water jacket is located on the top of the top plate 3, all the positioning pins 4 are located in the screw holes of the motor housing cooling water jacket, thereby realizing the positioning of the motor housing cooling water jacket. The diameter of the circular groove of the top plate 3 matches the outer diameter of the motor housing cooling water jacket, so the motor housing cooling water jacket can be located in the circular groove of the top plate 3. In order to facilitate the positioning pin 4 to enter the screw hole on the end face of the motor housing cooling water jacket, the top of the positioning pin 4 is truncated cone-shaped, and the diameter gradually decreases from bottom to top, so as to facilitate the entry into the screw hole on the end face of the motor housing cooling water jacket.

[0032] If you want to further stabilize the motor casing cooling water jacket, you can set a bushing (not shown in the figure) on the top of the locating pin 4. The bushing has a certain elasticity. When the top of the locating pin 4 enters the screw hole on the end face of the motor casing cooling water jacket, it plays a role in further fixing the motor casing cooling water jacket through clearance fit.

[0033] If the OP20 process does not include a step for processing the top of the motor casing cooling water jacket, a limit assembly can be set at the center of the base plate. The height of the limit assembly is higher than the motor casing cooling water jacket, and the top of the motor casing cooling water jacket is limited, thereby achieving the purpose of fixing the motor casing cooling water jacket.

[0034] The limit assembly can be composed of a telescopic cylinder and a pressure plate. The fixed end of the telescopic cylinder is installed on the inner wall of the bottom plate 1, and the movable end is rotatably connected to the pressure plate. The pressure plate is rotated horizontally to adjust the position. When the motor housing cooling water jacket workpiece needs to be placed on the top plate 3, the pressure plate can be rotated so that the pressure plate is located in the inner circular space of the bottom plate 1 without affecting the workpiece placed on the top plate 3. When the positioning pin 4 enters the screw hole of the workpiece, the pressure plate can be rotated so that the pressure plate is located above the top surface of the workpiece. The telescopic cylinder contracts to achieve the fit between the pressure plate and the workpiece, thereby fixing the workpiece to prevent it from moving longitudinally.

[0035] The limiting assembly can also be composed of a pressure plate connected by a column and a hinge. The column is connected to the inner circular side wall of the base plate 1. The column can be located at the center of the base plate 1. The top of the column is hinged with a pressure plate. In the initial state, the pressure plate is parallel to the column. When the workpiece is located on the top plate 3, the pressure plate can be rotated so that the pressure plate and the column are in a vertical state. The pressure plate contacts the top end face of the workpiece to achieve the purpose of fixing the workpiece.

[0036] The limiting component is not limited to the above-mentioned structure, and other structures that can limit the top of the workpiece can also be used as long as the workpiece can be positioned.

[0037] The fixture of the utility model positions the workpiece by using the screw hole on the end face of the motor housing cooling water jacket OP10 as a reference, and a matching positioning pin 4 is provided. The workpiece is directly placed on the positioning pin 4 of the fixture, thereby achieving accurate and rapid positioning, improving processing efficiency, and being able to effectively avoid errors and improve product quality.

[0038] Example 2

[0039] This embodiment introduces a motor housing cooling water jacket clamp, which has a structure basically the same as that of the motor housing cooling water jacket clamp introduced in Embodiment 1. The difference is that an arc-shaped opening 31 is opened in the circular groove of the top plate 3 of this embodiment, and the number of the arc-shaped openings 31 is consistent with the number of the positioning pins 4. One end of the positioning pin 4 extends horizontally to form a limiting protrusion, and the diameter of the limiting protrusion is larger than the diameter of the arc-shaped opening 31, so the limiting protrusion cannot pass through the arc-shaped opening 31, and the other end penetrates the arc-shaped opening 31 from the bottom of the top plate 3 upward and is located in the circular groove. One end of the positioning pin 4 that penetrates the arc-shaped opening 31 is threadedly connected to a limiting nut 32, and the diameter of the limiting nut 32 is larger than the width of the arc-shaped opening 31. A receiving groove for accommodating the limiting nut 32 is opened at the top of the arc-shaped opening 31. The limiting nut 32 is located in the receiving groove, which can maintain the flatness of the top of the circular groove.

[0040] When the position of the positioning pin 4 needs to be adjusted, the limiting nut 32 can be loosened, and the positioning pin 4 can slide in the arc opening 31 to adjust the position. Therefore, the positioning pin 4 of this embodiment can be adjusted according to the change of the screw hole position of the end face of the OP10 workpiece to achieve the purpose of positioning the workpiece.

[0041] Example 3

[0042] This embodiment introduces a motor housing cooling water jacket clamp, which is basically the same in structure as the motor housing cooling water jacket clamp introduced in Embodiment 2. The difference is that an arc-shaped sliding hole 33 is opened in the circular groove of the top plate 3 of this embodiment, one end of the positioning pin 4 passes through the arc-shaped sliding hole 33 and is located below the top plate 3, the part of the positioning pin 4 located in the arc-shaped sliding hole 33 extends horizontally to the inside of the side wall of the arc-shaped sliding hole 33, and the flanged nut 34 is threadedly connected to the bottom end of the positioning pin 4 and contacts the bottom of the top plate 3. When the positioning pin 4 needs to be slid, the flanged nut 34 can be loosened.

[0043] This embodiment has the same beneficial effects as Embodiment 2.

[0044] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A motor housing cooling water jacket fixture, characterized in that: It includes: Bottom plate (1); Support columns (2) are evenly distributed on the top of the base plate (1), and a plurality of support columns (2) are arranged to form a circular ring. The support columns (2) are detachably connected to the base plate (1); A top plate (3) is detachably connected to the top of the support column (2), and a circular groove is formed on the top of the top plate (3), wherein the diameter of the circular groove matches the outer diameter of the cooling water jacket of the motor housing; A positioning pin (4) is movably arranged in a circular groove of the top plate (3); the top of the positioning pin (4) is in a truncated cone shape, and the diameter gradually decreases from bottom to top; the distribution of multiple positioning pins (4) in the circular groove is consistent with the distribution of screw holes on the end face of the motor housing cooling water jacket, so as to accurately position the motor housing cooling water jacket.

2. The motor housing cooling water jacket fixture according to claim 1, characterized in that: The positioning pin (4) is threadedly connected to the circular groove of the top plate (3).

3. The motor housing cooling water jacket fixture according to claim 1, characterized in that: An arc-shaped opening (31) is formed in the circular groove of the top plate (3); one end of the positioning pin (4) extends horizontally to form a limiting protrusion, and the other end passes through the arc-shaped opening (31) from the bottom of the top plate (3) upward and is located in the circular groove; one end of the positioning pin (4) passing through the arc-shaped opening (31) is threadedly connected to a limiting nut (32); and a receiving groove for receiving the limiting nut (32) is formed at the top of the arc-shaped opening (31).

4. The motor housing cooling water jacket fixture according to claim 1, characterized in that: An arc-shaped sliding hole (33) is formed in the circular groove of the top plate (3); one end of the positioning pin (4) passes through the arc-shaped sliding hole (33) and is located below the top plate (3); the portion of the positioning pin (4) located in the arc-shaped sliding hole (33) extends horizontally to the inside of the side wall of the arc-shaped sliding hole (33); a flanged nut (34) is threadedly connected to the bottom end of the positioning pin (4) and contacts the bottom of the top plate (3).

5. The motor housing cooling water jacket fixture according to any one of claims 1 to 4, characterized in that: A bushing is arranged on the top of the positioning pin (4).

6. The motor housing cooling water jacket fixture according to claim 1, characterized in that: The bottom plate (1) and the top plate (3) are annular and coaxially arranged, and the inner diameters of the top plate (3) and the bottom plate (1) are at least the same as the inner diameter of the motor housing cooling water jacket.

7. The motor housing cooling water jacket fixture according to claim 1, characterized in that: A plurality of mounting holes (11) for connecting with a processing table are longitudinally opened on the surface of the bottom plate (1).

8. The motor housing cooling water jacket fixture according to claim 1, characterized in that: A limiting component for limiting the longitudinal movement of the motor housing cooling water jacket is installed at the center of the base plate (1).