Stator core welding tool
By designing the stator core welding tool, using components such as base, positioning mandrel, arcuate baffle and limit pin shaft, the accurate positioning and compression of the stator core is achieved, solving the misalignment and edge curling problems during stator core welding, and improving the welding quality.
Patent Information
- Application Number
- CN202422111011.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing stator core cannot be accurately positioned during stack welding, which is prone to misalignment deviation and curling edges, resulting in poor welding quality.
A stator core welding tool is designed, including a base, positioning mandrel, arcuate baffle, limit pin and T-shaped pad. Through the cooperation of these components, radial positioning and compression of the stator core is achieved to ensure accurate positioning and close fit of each piece of core.
The welding quality of the stator core is improved, the misalignment and edge curling problems are avoided, and the neat assembly after welding is ensured.
Smart Images
Figure CN223043963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stator processing, and particularly relates to a welding tooling for a stator core. Background Art
[0002] As Figure 1 shown is a stator core used in an existing 210 kg single-axis servo motor. The stator core is T-shaped, and both the inner and outer walls are circular arcs. It needs to be stacked and welded with 50 to 100 sheets, and then several stator cores are assembled in a petal shape in the servo motor after welding. However, it is impossible to accurately position the stator core after stacking, and misalignment deviation is likely to occur during welding, resulting in inability to assemble during assembly and failure to ensure a vertical state. At the same time, the iron core sheets are not closely attached to each other, and problems such as warping are likely to occur.
[0003] Therefore, for this stator core, it is urgent to design a welding tooling. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art. Therefore, the utility model provides a welding tooling for a stator core, which can position and compact the stator core to ensure the welding quality of the stator core.
[0005] To achieve the above purpose, the utility model provides a welding tooling for a stator core, including a base. A positioning mandrel and an arc-shaped baffle are vertically arranged coaxially on the top of the base, and two vertical limit pin shafts are arranged between the positioning mandrel and the arc-shaped baffle; the arc-shaped baffle is in coaxial sliding fit with the large end of the stator core, the positioning mandrel is in coaxial sliding fit with the small end of the stator core, and the limit pin shafts are in sliding tangency with the root of the stator core; a T-shaped backing plate is slidably arranged on the two limit pin shafts, and the T-shaped backing plate presses the stator core tightly through a pressing plate, and the pressing plate is bolted and fixed on the top of the positioning mandrel.
[0006] Further, a frustum is arranged on the top of the base, and the frustum is slidably embedded coaxially into the bottom of the positioning mandrel; the positioning mandrel is bolted and fixed on the base.
[0007] Further, the bottom of the arc-shaped baffle is slidably embedded into the base, a horizontal positioning pin is slidably arranged on the outer wall of the base, and the positioning pin is slidably embedded into the arc-shaped baffle; the center line of the positioning pin is located on the central plane of the arc-shaped baffle.
[0008] Further, the number of the arc-shaped baffles is several and they are evenly distributed in a circumferential direction.
[0009] Further, the number of the arc-shaped baffles is four.
[0010] Further, the cross section of the pressing plate is cross-shaped.
[0011] Furthermore, the base is a flat bottom plate.
[0012] Furthermore, the base is rectangular with 45° chamfers at the four corners of the rectangle; the arc-shaped baffle is on the same side as the chamfer plane.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the radial freedom of the stator core is restricted by the arc-shaped baffle and the positioning mandrel; the stacking of the stator core is further ensured to be neat by two limit pin shafts; the vertical state of the arc-shaped baffle can be ensured by the positioning pin and the embedding of the arc-shaped baffle into the base; the stator core can be pressed tightly through the mutual cooperation of the T-shaped backing plate and the pressing plate. Overall, it ensures that each piece of the stator core coincides without misalignment and without problems such as warping edges, improving the welding quality of the stator core. Description of the Drawings
[0014] Figure 1 It is a schematic structural diagram of the existing stator core.
[0015] Figure 2 It is a schematic structural diagram of the present utility model.
[0016] Figure 3 is Figure 2 a half-sectional schematic diagram of
[0017] Figure 4 It is a usage state diagram of the present utility model.
[0018] Wherein: 1. Base; 2. Positioning mandrel; 3. Arc-shaped baffle; 4. Limit pin shaft; 5. T-shaped backing plate; 6. Pressing plate; 11. Round table; 12. Positioning pin. Detailed Embodiment
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. Embodiment
[0021] Please refer to Figures 2 to 4 , the present utility model provides a stator core welding tooling, which includes a base 1. A positioning core shaft 2 and an arc-shaped baffle 3 are vertically arranged coaxially on the top of the base 1. Two vertical limit pin shafts 4 are arranged between the positioning core shaft 2 and the arc-shaped baffle 3. Among them, the arc-shaped baffle 3 is in sliding fit with the large end of the stator core coaxially, and the positioning core shaft 2 is in sliding fit with the small end of the stator core coaxially, so as to perform radial positioning on the stator core; the limit pin shaft 4 is in sliding tangency with the root of the stator core, which is convenient for stacking the stator cores neatly; a T-shaped backing plate 5 is slidably arranged on the two limit pin shafts 4, and the T-shaped backing plate 5 presses the stator core through a pressing plate 6, and the pressing plate 6 is bolted and fixed on the top of the positioning core shaft 2.
[0022] The limit pin shaft 4 here can be welded on the base 1 or can be press-fitted and embedded in the base 1, and the details will not be elaborated here.
[0023] As an embodiment of the present utility model, a frustum 11 is arranged on the top of the base 1, and the frustum 11 is slidably embedded in the bottom of the positioning core shaft 2 coaxially; the positioning core shaft 2 is bolted and fixed on the base 1. Specifically, as Figure 3 shown, a cylindrical counterbore is arranged at the bottom of the positioning core shaft 2, and the inner wall of the cylindrical counterbore cooperates with the frustum 11 on the base 1, further ensuring the installation position of the positioning core shaft 2.
[0024] As an embodiment of the present utility model, the bottom of the arc-shaped baffle 3 is slidably embedded in the base 1, and a horizontal positioning pin 12 is slidably arranged on the outer wall of the base 1, and the positioning pin 12 is slidably embedded in the arc-shaped baffle 3; the center line of the positioning pin 12 is located on the central plane of the arc-shaped baffle 3, thereby restricting the vertical freedom, radial freedom and rotational freedom of the arc-shaped baffle 3, which is convenient for disassembly and replacement.
[0025] The arc-shaped baffle 3 here can also be integrally welded on the base 1, and the details will not be elaborated here.
[0026] As an embodiment of the present utility model, the number of the arc-shaped baffles 3 is several and they are evenly distributed in a circumferential direction. The number of the arc-shaped baffles 3 is preferably four. Among them, the cross section of the pressing plate 6 is preferably cross-shaped.
[0027] The above-mentioned base 1 is preferably a flat bottom plate. The base 1 can be rectangular and 45° chamfers are arranged at the four corners of the rectangle; the arc-shaped baffle 3 is on the same side as the chamfer plane.
[0028] During use, the base 1 is bolted and fixed to the corresponding welding equipment. Then, the stacked stator cores are placed. The T-shaped backing plate 5 can ensure that the limit pin shaft 4 is in a vertical state and preliminarily presses the stator cores. Finally, the final pressing is achieved through the pressing plate 6, thereby realizing the rapid stacking and accurate positioning of the stator cores and improving the overall welding quality.
[0029] The present utility model can be outlined in other specific forms that do not violate the spirit or main features of the present utility model. Therefore, from any point of view, the above embodiments of the present utility model can only be considered as an illustration of the present utility model and cannot limit the present utility model. The claims indicate the scope of the present utility model, while the above description does not indicate the scope of the present utility model. Therefore, any change within the meaning and scope equivalent to the claims of the present utility model should be considered as being included within the scope of the claims of the present utility model.
Claims
1. A stator core welding tool, characterized in that: The invention comprises a base (1), wherein a positioning core shaft (2) and an arc-shaped baffle plate (3) are coaxially and vertically provided on the top of the base (1), and two vertical limit pins (4) are provided between the positioning core shaft (2) and the arc-shaped baffle plate (3); the arc-shaped baffle plate (3) is coaxially slidably matched with the large end of the stator core, the positioning core shaft (2) is coaxially slidably matched with the small end of the stator core, and the limit pins (4) are tangentially slidably matched with the root of the stator core; T-shaped pads (5) are slidably provided on the two limit pins (4), and the T-shaped pads (5) press the stator core tightly through a pressure plate (6), and the pressure plate (6) is bolted and fixed to the top of the positioning core shaft (2).
2. The stator core welding tool according to claim 1, characterized in that: A truncated table (11) is provided on the top of the base (1), and the truncated table (11) is coaxially slidably embedded in the bottom of the positioning mandrel (2); the positioning mandrel (2) is bolted and fixed to the base (1).
3. The stator core welding tool according to claim 1, characterized in that: The bottom of the arc-shaped baffle (3) is slidably embedded in the base (1); a horizontal positioning pin (12) is slidably provided on the outer wall of the base (1); the positioning pin (12) is slidably embedded in the arc-shaped baffle (3); and the center line of the positioning pin (12) is located on the center plane of the arc-shaped baffle (3).
4. The stator core welding tool according to any one of claims 1 to 3, characterized in that: The number of the arc-shaped baffles (3) is several and they are evenly distributed around the circumference.
5. The stator core welding tool according to claim 4, characterized in that: The number of the arc-shaped baffles (3) is four.
6. The stator core welding tool according to claim 5, characterized in that: The cross section of the pressing plate (6) is cross-shaped.
7. The stator core welding tool according to claim 5, characterized in that: The base (1) is a flat bottom plate.
8. The stator core welding tool according to claim 7, characterized in that: The base (1) is rectangular and the four corners of the rectangle are provided with 45° chamfers; the arc-shaped baffle (3) is on the same side as the chamfered plane.