Anti-warping device for paint dipping treatment of motor stator core

Abstract

The utility model discloses an anti-warping device for paint dipping treatment of a motor stator iron core, and belongs to the technical field of paint dipping of motor stator iron cores. According to the method, an upper pressing plate, a lower pressing plate, nuts, bolts and a stator iron core assembly are included. The upper pressing plate and the lower pressing plate are arranged on the upper end face and the lower end face of the stator iron core assembly, and the bolt enters from the center hole of the lower pressing plate, is inserted out from the center hole of the upper pressing plate and is screwed by the nut to achieve the purpose of warping prevention. According to the utility model, the stator iron core assembly is not easy to warp during paint dipping treatment, the reject ratio of products is reduced, the performance of the products is more reliable, the heating rate can be greatly accelerated, the production efficiency is improved, the disassembly is convenient, the use and operation are simple, and the process quality and the performance of the products are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses a motor stator core dip paint processing anti -warping device belongs to motor stator core dip paint technical field. BACKGROUND

[0002] In the production and manufacturing process of motor stator core, the stator core is formed by a plurality of stator punching sheets through selection, lamination and welding. In order to ensure the insulation requirement between the punching sheets, the stator core usually needs to be treated by dip paint. In the dip paint process, the punching sheet at the non-welding point position between the two welding seams of the core assembly will be warped and deformed, and the gap formed by the warping and deformation will be filled with the impregnated paint. After baking and curing, irreversible deformation of the core assembly occurs, and the deformed stator core cannot be used continuously, thereby wasting cost and affecting the production cycle of the product. SUMMARY

[0003] The utility model aims at:

[0004] Mainly solve the punching sheet deformation problem in the dip paint treatment process of motor stator core.

[0005] The technical scheme of the utility model is: a motor stator core dip paint processing anti -warping device, including: upper pressing plate 1, lower pressing plate 2, nut 4, bolt 3 and stator core assembly 5;Upper pressing plate 1, lower pressing plate 2 are placed on the upper and lower two end faces of stator core assembly 5, bolt 3 enters from the center hole of lower pressing plate 2, after stator core assembly 5, upper pressing plate 1, bolt 3 is inserted from the center hole of upper pressing plate 1, finally bolt 3 is tightened with nut 4.

[0006] The outer circle of the upper pressing plate 1 and the lower pressing plate 2 is slightly smaller than the outer circle of the stator core assembly 5;The inner circle of the upper pressing plate 1 and the lower pressing plate 2 is slightly smaller than the inner circle of the stator core assembly 5.

[0007] The upper pressing plate 1 and the lower pressing plate 2 are provided with positioning holes in the middle, and the bolt 3 is inserted in the positioning hole for fixation. The positioning hole is concentric with the inner and outer circles of the upper pressing plate 1 and the lower pressing plate 2.

[0008] The positioning hole is in clearance fit with the bolt 3.

[0009] The upper pressing plate 1 and the lower pressing plate 2 are provided with four weight reduction holes, and the weight reduction holes are uniformly distributed in a ring shape around the positioning hole.

[0010] The weight reduction hole is also a paint discharge window.

[0011] The utility model has the advantages of:

[0012] 1. The upper and lower pressing plates are placed on the upper and lower two end faces of the stator core assembly, the bolt enters from the center hole of the lower pressing plate, and after being inserted from the center hole of the upper pressing plate, the bolt is tightened with the nut to achieve the purpose of preventing warping.

[0013] 2. Ensure that the stator core assembly is not easy to warp during the paint dipping process, reduce the product failure rate, make the product performance more reliable,

[0014] 3. Greatly accelerate the heating rate, improve the production efficiency, have the characteristics of convenient disassembly and simple operation, greatly improve the process quality and product performance of the product. BRIEF DESCRIPTION OF DRAWINGS

[0015] When read in conjunction with the accompanying drawings, the exemplary examples and preferred modes of use will be best understood by referring to the following detailed description of the examples of the utility model, other purposes and its description, in which:

[0016] Fig. 1 The sectional view of the utility model

[0017] Fig. 2 The structure diagram of the utility model

[0018] Among them, 1 is an upper pressing plate, 2 is a lower pressing plate, 3 is a bolt, 4 is a nut, and 5 is a stator core assembly. DETAILED DESCRIPTION

[0019] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are illustrated. In fact, many different examples can be described and the examples should not be construed as limited to the examples set forth herein. Rather, the examples are described so that the disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0020] Referring to Figs. 1-2 A motor stator core paint dipping process anti-warping device, comprising: upper pressing plate 1, lower pressing plate 2, nut 4, bolt 3 and stator core assembly 5;The upper pressing plate 1 and the lower pressing plate 2 are arranged on the upper and lower two end faces of the stator core assembly 5, the bolt 3 enters from the center hole of the lower pressing plate 2, passes through the stator core assembly 5 and the upper pressing plate 1, and then the bolt 3 is inserted from the center hole of the upper pressing plate 1, finally the nut 4 is used to tighten the bolt 3.

[0021] The outer circle of the upper pressing plate 1 and the lower pressing plate 2 is slightly smaller than the outer circle of the stator core assembly 5, so that the height size of the stator core assembly can be easily measured;The inner circle of the upper pressing plate 1 and the lower pressing plate 2 is slightly smaller than the inner circle of the stator core assembly 5, so as to ensure that the device applies appropriate stress to the assembly;

[0022] The upper pressing plate 1 and the lower pressing plate 2 are provided with positioning holes in the middle, and the bolt 3 is inserted in the positioning holes for fixation. The positioning holes are concentric with the inner and outer circles of the upper pressing plate 1 and the lower pressing plate 2, and the pressing plate 2 and the stator core assembly 5 are fixed by the bolt 3.

[0023] The positioning hole is in clearance fit with the bolt 3, facilitating disassembly.

[0024] The upper pressing plate 1 and the lower pressing plate 2 are provided with four lightening holes, which are uniformly distributed in a ring shape around the positioning hole.

[0025] The lightening hole is also a paint draining window, facilitating complete draining of paint and reducing bumping to the operator;

[0026] Method for use: first, apply silicon grease to the contact surface between the upper pressing plate 1 and the lower pressing plate 2 and the stator core assembly 5, to prevent the impregnated paint from adhering to the pressing plate during high-temperature treatment, facilitating disassembly. Then, insert the bolt 3 from the center hole of the lower pressing plate 2, place the stator core assembly 5 on the lower pressing plate 2, and then place the upper pressing plate 1 on the upper end surface of the assembly, ensuring that the bolt 3 is inserted from the center hole of the upper pressing plate 1, and finally tighten the bolt with the nut 4. In this way, the stator core assembly is prevented from being easily warped and deformed during the impregnated paint treatment process.

[0027] Different examples of the systems, devices, and methods disclosed herein include various components, features, and functionalities. It should be understood that various examples of the systems, devices, and methods disclosed herein can include any of the components, features, and functionalities of any of the other examples of the systems, devices, and methods disclosed herein in any combination or sub-combination, and all such possibilities are intended to fall within the scope of the present disclosure.

[0028] The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, different advantageous examples can use some of the aspects of the disclosed examples while omitting, adding or modifying other aspects. Although the described examples can convey a sufficient level of functionality, it is possible that one or more aspects of the examples described above can not be necessary for every implementation. Additionally, it is possible that one or more aspects of the examples described above can be implemented with different arrangements of the described examples. It is intended that the written description act as an enablement for forms of the examples that are within the scope of the disclosed examples.

Claims

1. A device for preventing warping of motor stator cores through impregnation treatment, characterized in that, include: Upper pressure plate (1), lower pressure plate (2), nut (4), bolt (3) and stator core assembly (5); place the upper pressure plate (1) and lower pressure plate (2) on the upper and lower end faces of the stator core assembly (5), the bolt (3) enters through the center hole of the lower pressure plate (2), passes through the stator core assembly (5) and the upper pressure plate (1), and the bolt (3) exits from the center hole of the upper pressure plate (1). Finally, tighten the bolt (3) with the nut (4).

2. The anti-warping device for impregnated motor stator core according to claim 1, characterized in that, The outer circles of the upper pressure plate (1) and the lower pressure plate (2) are slightly smaller than the outer circle of the stator core assembly (5); the inner circles of the upper pressure plate (1) and the lower pressure plate (2) are slightly smaller than the inner circle of the stator core assembly (5).

3. The anti-warping device for impregnated motor stator core according to claim 1, characterized in that, The upper pressure plate (1) and the lower pressure plate (2) have positioning holes in the middle, and bolts (3) are inserted into the positioning holes for fixing. The positioning holes are concentric with the inner and outer circles of the upper pressure plate (1) and the lower pressure plate (2).

4. The anti-warping device for impregnating motor stator cores according to claim 3, characterized in that, The positioning hole and the bolt (3) are clearance fit.

5. The anti-warping device for impregnating motor stator cores according to claim 3, characterized in that, The upper pressure plate (1) and the lower pressure plate (2) are provided with four weight-reducing holes, which are evenly distributed in a ring around the positioning hole.

6. The anti-warping device for impregnating motor stator cores according to claim 5, characterized in that, The weight-reducing hole also serves as a paint drainage window.

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