Splicing type motor stator roundness correction tool

Abstract

The utility model relates to the technical field of motor production, and especially relates to a splicing type motor stator roundness correction tool. Comprising a base, a core mold arranged in the middle of the base and a plurality of calibration assemblies arranged on the periphery of the core mold, the calibration assemblies are connected to the base in a sliding mode, a stator is installed on the core mold, the calibration assemblies abut against the outer diameter face of the stator, and the outer diameter face of the core mold abuts against the inner diameter face of the stator. The splicing type motor stator roundness correction tool provided by the utility model has the advantages of high precision, high working efficiency, wide application range, good product quality, simple structure, convenience in disassembly and assembly and the like.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a splicing motor stator rounding tool. Background Technology

[0002] The structure of an electric motor mainly consists of two parts: the stator and the rotor. The stator includes the frame, stator core, and stator windings. The frame is usually made of cast iron or cast steel and its main function is to support and protect the stator core and windings. When assembling an electric motor, it is generally necessary to test the performance of the rotor and stator.

[0003] Chinese Patent CN207782617U discloses a stator splicing and positioning fixture for motors, belonging to the technical field of motor production equipment. It includes: an external clamping mechanism, with several chuck jaws arranged in a circumferential array on the upper part of a multi-jaw self-centering chuck, each chuck jaw having a pressing block on its upper part, and the pressing blocks forming a ring; and an internal expansion and support positioning mechanism, with several wedge-shaped grooves arranged in a circumferential array on a wedge-shaped groove fixing seat, and an internal expansion shaft positioned in the middle of the upper part of the wedge-shaped groove fixing seat. The wedge-shaped groove fixing seat is arranged from top to bottom inside the ring of pressing blocks, and each movable expansion block is slidably engaged in a wedge-shaped groove, with the movable expansion blocks arranged around the circumference of the internal expansion shaft. The stator splicing and positioning fixture provided by this invention achieves a tight fit between the external clamping and internal expansion, ensuring the concentricity of the outer and inner circles of the stator, resulting in high stator product quality, fast assembly efficiency, and realizing an automated assembly process for modular stator assembly.

[0004] However, this technical solution uses an external clamping mechanism to clamp the outer circle of the stator through a chuck, jaws, and clamping blocks, and an internal expansion support and positioning mechanism to expand the inner circle of the stator through a movable expansion block and an internal expansion shaft. This requires two sets of equipment to control the concentricity and roundness of the stator, resulting in low working efficiency and high operating costs. Furthermore, the chuck, jaws, and expansion blocks are very likely to damage the stator itself during operation, causing wear or indentations, which in turn leads to poor stator processing quality and fails to meet usage requirements. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a splicing motor stator roundness adjustment fixture. By installing the mandrel and calibration components on the same device, the two work together to quickly adjust the roundness and concentricity of the stator to meet usage requirements, thereby improving work efficiency. Furthermore, the calibration components can slide freely on the base, making the fixture applicable to stators of various specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A splicing motor stator rounding fixture includes: a base, a mandrel disposed in the middle of the base, and a plurality of calibration components disposed on the outer periphery of the mandrel. The calibration components are slidably connected to the base, the stator is mounted on the mandrel, the calibration components abut against the outer diameter surface of the stator, and the outer diameter surface of the mandrel abuts against the inner diameter surface of the stator.

[0008] Preferably, the calibration assembly includes: a slider slidably connected to the base, a calibration seat disposed directly above the slider, a positioning block disposed at one end of the calibration seat, a first fastener disposed between the slider and the calibration seat for adjusting the position of the slider, and a second fastener disposed between the positioning block and the calibration seat for adjusting the position of the positioning block.

[0009] Preferably, a plurality of guide posts are provided between the calibration seat and the positioning block, and the guide posts are provided on both sides of the second fastener.

[0010] Preferably, the upper surface of the base has a plurality of protrusions evenly distributed thereon.

[0011] Preferably, a groove is provided between adjacent protrusions for the movement of the slider and the calibration seat.

[0012] Preferably, the core mold is positioned directly above the support seat inside the base, and the base and the support seat are fixedly connected by a third fastener.

[0013] Preferably, the core mold is an inclined segmented splicing structure, and a fixing plate is provided on its upper surface. The mounting holes on the fixing plate, the limiting holes on the base, and the positioning holes on the core mold are concentrically arranged.

[0014] Preferably, the calibration seat is L-shaped, with one end slidably connected to the groove and the other end fixedly connected to the positioning block.

[0015] Preferably, the outer wall of the positioning block is adapted to the outer wall of the stator and is arc-shaped.

[0016] Preferably, the stator abuts against the top surface of the support base, and the dimensions of the support base are adapted to the dimensions of the stator.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) In this utility model, the calibration component abuts against the outer diameter surface of the stator, and the outer diameter surface of the core mold abuts against the inner diameter surface of the stator. The position of the calibration component can be adjusted according to the actual outer diameter of the stator until the calibration component is circular, that is, the stator is rounded. The whole process does not require frequent tooling changes or complex adjustments. It can adapt to stators of different sizes, improve the versatility and applicability of the tooling, thereby greatly shortening the time of rounding operation and improving production efficiency.

[0019] (2) By dividing the core mold into two halves with an inclined splicing surface, the present invention can conveniently position and support the stator from both sides, making it easy to install and disassemble, improving work efficiency. The split design also allows for local adjustments to the stator during splicing, further ensuring the concentricity and roundness of the stator.

[0020] (3) This utility model further ensures the accuracy of the roundness by setting a two-stage adjustment mechanism on the calibration component, so as to more accurately adapt to the stator outer diameter of different sizes. Moreover, the outer wall of the positioning block on the calibration component is arc-shaped, which matches the outer wall of the stator and will not cause wear to the stator, thus ensuring the processing quality.

[0021] In summary, this utility model has the advantages of high precision, high working efficiency, wide applicability, good product quality, simple structure and convenient assembly and disassembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a cross-sectional view of the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of point B;

[0026] Figure 5 for Figure 3 Enlarged view of point C;

[0027] Figure 6 This is a schematic diagram of the structure of the calibration component of this utility model;

[0028] Figure 7 This is an exploded view of the components of this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Example

[0032] like Figures 1-7 As shown, this embodiment provides a splicing motor stator rounding fixture, including: a base 1, a core mold 2 disposed in the middle of the base 1 for adjusting the concentricity of the stator 400, and a plurality of calibration components 3 disposed on the outer periphery of the core mold 2. The calibration components 3 are slidably connected to the base 1, the stator 400 is mounted on the core mold 2, the calibration components 3 abut against the outer diameter surface of the stator 400, and the outer diameter surface of the core mold 2 abuts against the inner diameter surface of the stator 400. The position of the calibration components 3 can be adjusted according to the actual outer diameter of the stator 400 until the calibration components 3 are circular and their inner and outer circles are concentric, that is, the rounding of the stator 400 is completed. The whole process does not require frequent tooling changes or complex adjustments, thereby greatly shortening the rounding operation time and improving production efficiency.

[0033] The calibration component 3 includes: a slider 31 slidably connected to the base 1; a calibration seat 32 disposed directly above the slider 31; a positioning block 33 disposed at one end of the calibration seat 32; a first fastener 34 disposed between the slider 31 and the calibration seat 32 for adjusting the position of the slider 31; and a second fastener 35 disposed between the positioning block 33 and the calibration seat 32 for adjusting the position of the positioning block 33. This allows the positioning block 33 to achieve multi-level adjustment, thereby accurately adapting to stator 400 outer diameters of different sizes and ensuring the accuracy of the rounding operation. The first fastener 34 and the second fastener 35 are both preferably bolts, that is, the slider 31 is threadedly connected to the first fastener 34, and the second fastener 35 is threadedly connected to the positioning block 33.

[0034] Meanwhile, the position of the calibration component 3 can be adjusted according to the outer diameter of the actual stator 400, so that it can adapt to stators 400 of different sizes, thereby improving the versatility and applicability of the tooling.

[0035] In this embodiment, a plurality of guide posts 36 are provided between the calibration seat 32 and the positioning block 33. The guide posts 36 are provided on both sides of the second fastener 35. Preferably, there are two guide posts 36. They not only provide support but also limit the movement direction of the calibration seat 32, ensuring the stability of the movement of the calibration seat 32 and ensuring that it always moves in the predetermined direction (front and back direction) without any positional deviation in the left and right directions. This greatly improves the stability and accuracy of the calibration component 3 and ensures that the outer diameter of the stator 400 can be uniformly stressed and calibrated into a standard circle.

[0036] In this embodiment, a plurality of protrusions 11 are evenly distributed on the upper surface of the base 1, and a slide groove 12 is provided between adjacent protrusions 11 for the movement of the slider 31 and the calibration seat 32. The slider 31 and the calibration seat 32 can move freely in the slide groove 12, which improves the flexibility and ease of operation of the tooling.

[0037] In this embodiment, the core mold 2 is located directly above the inner support seat 13 of the base 1. The base 1 and the support seat 13 are fixedly connected by a third fastener 14. The structure is simple and easy to assemble and disassemble.

[0038] In this embodiment, the core mold 2 is an inclined, segmented splicing structure, i.e., a split structure. A fixing plate 21 is provided on its upper surface. The fixing plate 21 further fixes the core mold 2 to prevent its position from shifting. The core mold 2 is preferably two-part, which can conveniently position and support the stator 400 from both sides, making it easy to install and disassemble, improving work efficiency. After the stator 400 is rounded, the two segments of the core mold 2 can be disassembled one by one without affecting the roundness of the stator 400. The segmented design allows for local adjustments to the stator 400 during the splicing process, ensuring the concentricity and roundness of the stator 400.

[0039] In this embodiment, the mounting hole 22 on the fixing plate 21, the limiting hole 15 on the base 1, and the positioning hole 23 on the core mold 2 are concentrically arranged. Specifically, a positioning rod, pin, or bolt that serves to fix and limit is inserted into the concentric hole so that the position of the core mold 2 will not change, that is, it will not move up, down, left, or right, thereby improving the roundness accuracy.

[0040] In this embodiment, the calibration seat 32 is L-shaped, with one end slidably connected to the slide groove 12 and facing the slider 31. The other end is fixedly connected to the positioning block 33. The L-shaped design can ensure the overall stability of the calibration component 3, and the L-shaped structure makes the overall layout of the calibration component 3 more compact and saves space.

[0041] In this embodiment, the outer wall of the positioning block 33 is adapted to the outer wall of the stator 400 and is arc-shaped, which further ensures the roundness of the stator 400, prevents wear on the stator 400, and ensures the processing quality.

[0042] In this embodiment, the stator 400 is formed by splicing together multiple stator blocks 401. One side of each stator block 401 is provided with a protrusion 402 and the other side is provided with a groove 403. The two are matched in size, so that two adjacent stator blocks 401 can be directly inserted and spliced ​​together.

[0043] Of course, the stator 400 abuts against the top surface of the support base 13. The size of the support base 13 is adapted to the size of the stator 400. Preferably, the outer diameter of the support base 13 is larger than the outer diameter of the core mold 2 and smaller than the outer diameter of the stator 400, so as to ensure that the support base 13 can fully support the stator 400 and keep the stator 400 stable.

[0044] In addition, the protrusions 11 are circumferentially distributed on the outer periphery of the support base 13. The number of protrusions 11 is the same as the number of stator blocks 401. That is, the calibration component 3 is set in a one-to-one correspondence with the stator blocks 401, which can quickly adjust the outer diameter surface of the stator 400 to a round shape, further ensuring the roundness of the stator 400.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spliced motor stator roundness correction tool, characterized in that, The application relates to a stator calibrating device, which comprises a base, a core mould arranged in the middle of the base and a plurality of calibrating assemblies arranged on the outer periphery of the core mould, wherein the calibrating assemblies are slidingly connected to the base, a stator is arranged on the core mould, the calibrating assemblies abut the outer diameter surface of the stator, and the outer diameter surface of the core mould abuts the inner diameter surface of the stator. The calibrating assembly comprises a sliding block slidingly connected to the base, a calibrating seat arranged above the sliding block, a positioning block arranged at one end of the calibrating seat, a first fastener arranged between the sliding block and the calibrating seat for adjusting the position of the sliding block, and a second fastener arranged between the positioning block and the calibrating seat for adjusting the position of the positioning block.

2. The aligning tool for the segmented motor stator according to claim 1, characterized in that, A plurality of guide columns are arranged between the calibrating seat and the positioning block and on both sides of the second fastener.

3. The aligning tool for the segmented motor stator according to claim 2, characterized in that, A plurality of convex blocks are uniformly distributed on the upper end surface of the base.

4. The aligning tool for the segmented motor stator according to claim 2, characterized in that, A sliding groove for moving the sliding block and the calibrating seat is arranged between two adjacent convex blocks.

5. The aligning tool for the segmented motor stator according to claim 4, characterized in that, The core mould is arranged above a supporting seat in the base, and the base and the supporting seat are fixedly connected through a third fastener.

6. The aligning tool for a segmented motor stator according to claim 1, wherein, The core mould is of an inclined split and spliced structure, and a fixing plate is arranged on the upper surface of the core mould; a mounting hole in the fixing plate, a limiting hole in the base and a positioning hole in the core mould are concentrically arranged.

7. The aligning tool for a segmented motor stator according to claim 6, wherein, The calibrating seat is of an L shape, one end of which is slidingly connected in the sliding groove, and the other end is fixedly connected with the positioning block.

8. The aligning tool for a segmented motor stator according to claim 5, wherein, The outer wall of the positioning block is matched with the outer wall of the stator.

9. The aligning tool for the segmented motor stator according to claim 2, characterized in that, The stator abuts the top surface of the supporting seat, and the size of the supporting seat is matched with the size of the stator.

10. The aligning tool for a segmented motor stator according to claim 6, wherein, ​

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