Motor lead end stator shaping tool

Abstract

The utility model discloses a motor lead end stator shaping frock relates to motor manufacturing field. The frock includes circular outer wall and inner cylinder, circular outer wall and inner cylinder same circle center are located on the bottom plate, the circular outer wall, inner cylinder and bottom plate form the annular containing space between, and the containing space is used to accommodate stator, be provided with the notch on the circular outer wall, the notch width is less than the diameter of inner cylinder. Through frock can simple structure, low -cost shaping frock, can realize the quick standard shaping to motor lead end stator under the condition of not introducing new equipment, to reduce production cost, improve market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing, and in particular to a stator shaping fixture for motor lead ends. Background Technology

[0002] In the process of motor manufacturing, in order to achieve the goals of performance optimization, mechanical stability, insulation protection and assembly process improvement, it is necessary to shape the stator at the lead end.

[0003] First, shaping significantly improves motor performance. The operating efficiency and electromagnetic performance of a motor are closely related to the structure of the stator coils. During manufacturing, the coil ends may become scattered or deformed due to uneven stress during winding or assembly. This irregular structure leads to uneven magnetic field distribution, affecting the motor's starting performance and operating efficiency. Through shaping, the coil ends are adjusted to a neat and symmetrical shape, thereby optimizing the magnetic field distribution and ensuring the motor's stability and efficiency during operation.

[0004] Secondly, the coil shaping process plays a crucial role in mechanical stability. During operation, motors generate vibrations and friction, and the loose structure of unshaped coil ends exacerbates these phenomena. Shaped coil ends are more compact, effectively reducing friction between coils, lowering vibration and noise, and thus improving the smoothness of motor operation.

[0005] Another important function of the shaping process is to protect insulation performance. The insulation performance of a motor is crucial for its safe operation, and the coil ends of the stator are easily damaged during manufacturing or transportation. During the shaping process, precise adjustments and repairs can ensure that the insulation layer at the coil ends remains intact.

[0006] Finally, the shaping process also significantly impacts the optimization of the assembly process. The shaped coil ends have a regular shape, providing better mechanical conditions for subsequent assembly. For example, the installation of the motor end cap requires a tight fit with the coil ends, and the shaped ends reduce interference during assembly, improving assembly efficiency.

[0007] In conclusion, the stator shaping process at the lead ends is not only a crucial step in motor manufacturing but also an essential means to improve motor performance, stability, and reliability. By optimizing the structure of the coil ends, the shaping process ensures the high efficiency and safety of the motor during operation, while also facilitating subsequent assembly and reducing production costs. The combined benefits of this process make it an indispensable part of modern motor manufacturing.

[0008] For manufacturers lacking specialized shaping equipment, purchasing expensive specialized equipment could increase production costs. Therefore, a simple, low-cost shaping fixture is needed to quickly and accurately shape the motor lead-end stators without introducing new equipment, thereby reducing production costs and improving market competitiveness. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a motor lead end stator shaping fixture. This fixture is simple in structure and low in cost, enabling rapid and standardized shaping of motor lead end stators without the introduction of new equipment, thereby reducing production costs and improving market competitiveness.

[0010] To achieve the above objective, this application discloses a stator shaping fixture for motor lead ends. The fixture includes a circular outer wall and an inner cylinder. The circular outer wall and the inner cylinder are concentrically disposed on a base plate. An annular receiving space is formed between the circular outer wall, the inner cylinder, and the base plate. The receiving space is used to receive the stator. A notch is provided on the circular outer wall. The width of the notch is smaller than the diameter of the inner cylinder.

[0011] Furthermore, the height of the inner cylinder is higher than the height of the upper edge of the outer circular wall.

[0012] Furthermore, the notch on the circular outer wall is flush with the bottom plate.

[0013] Furthermore, the shaping fixture is made of silicone or rubber.

[0014] Beneficial effects of the technical solution of this utility model

[0015] This application describes bending and shaping the ends of the motor stator coils, an effective method to achieve a compact internal structure and shorten the motor length. This requires specialized shaping fixtures to meet the shaping needs. For manufacturers lacking specialized shaping equipment, purchasing expensive equipment may increase production costs. Therefore, a simple and low-cost shaping fixture is needed to quickly and accurately shape the stator leads without introducing new equipment, thereby reducing production costs and improving market competitiveness. The fixture must provide comprehensive protection for the stator windings during the shaping process. Soft, insulating, and elastic materials, such as silicone pads and rubber guards, should be used at the contact points with the stator windings to prevent direct scraping or squeezing of the windings by the shaping components, thus preventing damage to the enamel coating and reducing the risk of electrical faults such as short circuits and open circuits. Simultaneously, by optimizing the shaping process path, the stress on the windings is ensured to be evenly distributed during the shaping process, avoiding localized stress concentration that could damage the windings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the stator shaping fixture for the lead end of this utility model. Figure 1 ;

[0018] Figure 2 This is a cross-sectional structural diagram of the stator shaping fixture for the lead end of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the stator shaping fixture for the lead end of this utility model. Figure 2 .

[0020] Explanation of reference numerals in the attached figures:

[0021] Circular outer wall-1, inner cylinder-2, base plate-3, accommodating space-4, notch-11. Detailed Implementation

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] refer to Figure 1-3A stator shaping fixture for motor lead ends, the fixture includes a circular outer wall 1 and an inner cylinder 2, the circular outer wall 1 and the inner cylinder 2 are concentrically arranged on a base plate 3, and an annular receiving space 4 is formed between the circular outer wall 1, the inner cylinder 2 and the base plate 3, the receiving space 5 is used to receive the stator, and a notch 11 is provided on the circular outer wall 1, the width of the notch 11 being smaller than the diameter of the inner cylinder 2.

[0025] The fixture consists of a circular outer wall 1, an inner cylinder 2, and a base plate 3. The outer wall and inner cylinder are concentrically positioned on the base plate, forming an annular receiving space 4 for placing the stator. A notch 11 is designed on the circular outer wall; the width of the notch is smaller than the diameter of the inner cylinder, primarily used for positioning and shaping the stator lead ends. The height of the inner cylinder is higher than the upper edge of the circular outer wall, providing additional support and positioning for the lead end shaping.

[0026] In practical use, the stator is first placed in the fixture's receiving space. The stator's outer wall fits snugly against the circular outer wall, and the inner hole mates with the inner cylinder, ensuring the stator is centered and stable within the fixture. The lead end protrudes from the fixture through a notch; the width of the notch limits the lead's range of motion, preventing displacement or deformation during shaping. During shaping, the fixture's structural design fixes the stator, while the lead end is easily processed or adjusted through the notch. If further fixing or shaping is required, other tools such as pressure plates or clamps can be used to manipulate the lead end through the notch.

[0027] Furthermore, this fixture offers advantages such as accurate positioning, lead end protection, and ease of operation. The concentric design of the circular outer wall and inner cylinder ensures the stator's centering and prevents misalignment; the width of the notch limits the range of motion of the lead ends, protecting them from damage; and the annular accommodating space and notch design make stator placement and lead end shaping operations more convenient. This fixture is particularly suitable for stator lead end shaping in equipment such as motors and transformers, and can also be used in conjunction with automated equipment to improve production efficiency.

[0028] Preferably, the height of the inner cylinder 2 is higher than the height of the upper edge of the circular outer wall 1. The notch 11 on the circular outer wall 1 is flush with the base plate 3. This design provides additional support and positioning for the lead end. During the forming process, the height of the inner cylinder ensures that the lead end is stable and not easily deformed, while also helping to adapt to stators of different sizes and improving the versatility of the tooling.

[0029] The notch on the circular outer wall is flush with the base plate: This flush design facilitates the lead wire exit while ensuring the lead wire is not obstructed during shaping. This design helps maintain the integrity and stability of the tooling, while providing a clear guide path for the lead wire and preventing damage or deformation during shaping.

[0030] More preferably, the shaping fixture is made of silicone or rubber. During the shaping process, the fixture must provide comprehensive protection for the stator winding. At the points of contact with the stator winding, soft, insulating, and elastic materials such as silicone pads and rubber guards are used to prevent the shaping components from directly scratching or squeezing the winding, thus preventing damage to the enameled wire coating and reducing the risk of electrical faults such as short circuits and open circuits. Simultaneously, by optimizing the shaping process path, it is ensured that the stress on the winding is evenly distributed during the shaping process, avoiding localized stress concentration that could damage the winding.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stator shaping fixture for motor lead ends, characterized in that: The tooling includes a circular outer wall (1) and an inner cylinder (2). The circular outer wall (1) and the inner cylinder (2) are arranged concentrically on the base plate (3). An annular receiving space (4) is formed between the circular outer wall (1), the inner cylinder (2) and the base plate (3). The receiving space (4) is used to receive the stator. A notch (11) is provided on the circular outer wall (1). The width of the notch (11) is smaller than the diameter of the inner cylinder (2).

2. The stator shaping fixture for motor lead ends according to claim 1, characterized in that: The height of the inner cylinder (2) is higher than the height of the upper edge of the outer circular wall (1).

3. The motor lead end stator shaping fixture according to claim 1, characterized in that: The notch (11) on the circular outer wall (1) is flush with the bottom plate (3).

4. The stator shaping fixture for motor lead ends according to claim 1, characterized in that: The shaping fixture is made of silicone or rubber.

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