Motor stator winding mold

Abstract

The utility model relates to motor stator winding die, include: clamp seat, clamp block, stator framework and tail top, clamp block and stator framework set up between clamp seat and tail top, be provided with the mounting rod on the clamp seat, a plurality of clamp blocks and a plurality of stator frameworks are alternately worn on the mounting rod, just the clamp block sets up in the bottom layer and the top layer, the tail top sets up at the top of mounting rod, the utility model discloses clamp block and stator framework need only according to specific order to install to mounting rod can complete installation, and the installation process is simple and quick, and the winding precision is high.

Description

Technical Field

[0001] This utility model relates to the field of stator winding equipment technology, and in particular to motor stator winding mold. Background Technology

[0002] Early motor stator winding relied on manual operation, resulting in low efficiency, poor consistency, and easy damage to the enameled wire, making it difficult to meet the needs of large-scale production. For multi-turn, multi-layer, or specially shaped coils (such as tapered windings and cross windings), manual operation was time-consuming and prone to errors. Wire changes and adjustments were difficult, requiring frequent adjustments to equipment parameters when switching between different coil specifications, affecting continuous production. Large manual errors easily led to uneven turns, inconsistent wire spacing, or loosening between layers, affecting electrical performance (such as fluctuations in inductance and resistance values). Poor repeatability resulted in high parameter dispersion within the same batch of products, making it difficult to meet the requirements of high-precision electronic devices (such as medical equipment and aerospace equipment).

[0003] In response to the shortcomings of traditional winding technology, some have proposed using mechanical tools (such as winding machines) to assist in the process. For example, Chinese utility model patent CN213783097U discloses a motor stator stator core segmented winding fixture, which can conveniently complete the winding of multiple core segments using a winding machine, thereby improving winding efficiency.

[0004] However, the above-mentioned technical solutions involve complex winding installation methods and lack adaptability to different winding structures. Summary of the Invention

[0005] The purpose of this invention is to provide a motor stator winding mold to solve the problem of complex winding installation.

[0006] To achieve the above objectives, this utility model discloses a motor stator winding mold, comprising: a clamping base, clamping blocks, a stator frame, and a tail top. The clamping blocks and the stator frame are disposed between the clamping base and the tail top. A mounting rod is vertically disposed on the clamping base. A first mounting hole is provided on the clamping block to cooperate with the mounting rod. A second mounting hole is provided on the stator frame to cooperate with the mounting rod. Several clamping blocks and several stator frames are inserted through the mounting rod. Clamping blocks are provided on the upper and lower sides of each stator frame. The tail top is disposed at the end of the mounting rod. The stator frame is provided with a winding groove for winding enameled wire.

[0007] Preferably, the clamping block includes a bottom clamping block that contacts the clamping seat, a top clamping block that contacts the tail top, and an intermediate clamping block disposed between adjacent stator frames; the number of intermediate clamping blocks is equal to the number of stator frame layers minus one, and when the stator frame is a single layer, the number of intermediate clamping blocks is zero.

[0008] Preferably, the mounting rod has a rectangular cross-section, and the first and second mounting holes are rectangular holes. The top clamping block and the middle clamping block are fixedly connected to a first insert and a second insert at their bottoms, and the first and second inserts are respectively located on both sides of the first mounting hole. The stator frame has a second mounting hole with a length of L1, the first mounting hole has a length of L2, the first insert has a thickness of L3, and the second insert has a thickness of L4. The length of the second mounting hole is L1 = L2 + L3 + L4.

[0009] Preferably, the sides of the intermediate clamping block and the bottom clamping block are provided with a first winding portion, and the sides of the top clamping block are provided with a second winding portion.

[0010] Preferably, the first winding portion includes a first connecting block and a first winding post. The first winding portion is L-shaped. The first connecting block is close to the clamping block. The first winding post is fixedly connected to one side of the first connecting block. Adjacent first winding posts are staggered.

[0011] Preferably, the second winding portion includes a second winding post and a limiting post, the second winding post being fixedly connected to the side of the clamping block, and the limiting post being fixedly connected to the end of the winding post away from the top clamping block.

[0012] Preferably, the intermediate clamping block and the bottom clamping block are provided with a first mating portion, and the stator frame is provided with a second mating portion that mates with the first mating portion; the top of the intermediate clamping block and the bottom clamping block are formed by downward opening to form the first mating portion. The first mating portion is located on one side of the first mounting hole, and the first mating portion includes a first clearance groove and first mating surfaces located on both sides of the first clearance groove, the bottom of the first clearance groove being lower than the two first mating surfaces. The second mating portion includes a boss fixedly connected to the bottom of the stator frame, the bottom of the boss being provided with a second mating surface, and the second mating surface fitting against the first mating surface. The bottom of the top clamping block and the intermediate clamping block are provided with a third mating portion, and the top of the stator frame is provided with a fourth mating portion that mates with the third mating portion. The third mating portion is a downwardly protruding arcuate surface, and the fourth mating portion is a downwardly concave arcuate surface. The top surface of the stator frame is provided with a second clearance groove, which is located on both sides of the second mounting hole.

[0013] Preferably, a cavity is provided at the bottom of the tail top, into which the mounting rod can be inserted.

[0014] Preferably, the clamp seat further includes a clamp seat shaft, which is disposed at the bottom of the clamp seat and has a pin hole. The tail top further includes a tail top shaft, which is disposed at the top of the tail top.

[0015] This utility model has the following beneficial effects:

[0016] 1. The clamping block and stator frame of this utility model can be installed simply by following a specific order on the mounting rod. The installation process is simple and quick.

[0017] 2. The cooperation between the first and second docking parts, and the cooperation between the third and fourth docking parts, improves the overall precision of the mold, ensures winding accuracy, and has good stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure provided in a specific embodiment of the present utility model;

[0019] Figure 2 This is an overall exploded view provided in a specific embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the clamp holder provided in a specific embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the tail top structure provided in a specific embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the tail top structure provided in a specific embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the bottom clamping block provided in a specific embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of the intermediate clamping block provided in a specific embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the bottom structure of the intermediate clamping block provided in a specific embodiment of the present utility model;

[0026] Figure 9 This is a side view of the intermediate clamping block provided in a specific embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of the stator frame structure provided in a specific embodiment of the present utility model;

[0028] Figure 11 This is a schematic diagram of the top-level clamping block structure provided in a specific embodiment of the present utility model;

[0029] Figure 12 This is a schematic diagram of the installation structure of the stator frame and intermediate clamping block provided in a specific embodiment of this utility model;

[0030] Figure 13 This is an exploded view of the stator frame and intermediate clamping block provided in a specific embodiment of this utility model.

[0031] Explanation of symbols for main components:

[0032] 100. Fixture base; 110. Mounting rod; 120. Fixture base shaft; 121. Pin; 200. Clamping block; 210. Bottom clamping block; 211. First mating surface; 212. First clearance groove; 213. First connecting block; 214. First winding post; 215. First mounting hole; 216. First insert block; 217. Second insert block; 218. Third mating part; 220. Intermediate clamping block; 230. Top clamping block; 300. Stator frame; 310. Winding groove; 320. Fourth mating part; 330. Second clearance groove; 340. Second mounting hole; 350. Boss; 400. Tail top; 410. Tail top shaft; 420. Cavity. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figures 1-13 This utility model provides a motor stator winding mold, including: a clamping base 100, a clamping block 200, a stator frame 300, and a tail top 400. The clamping block 200 and the stator frame 300 are disposed between the clamping base 100 and the tail top 400. A mounting rod 110 is vertically disposed on the clamping base 100. The clamping block 200 has a first mounting hole 215 that mates with the mounting rod 110. The stator frame 300 has a second mounting hole 340 that mates with the mounting rod. The clamping block 200 and the stator frame 300 are engaged with the mounting rod 110 through the first mounting hole 215 and the second mounting hole 340, adopting a "plug-in" installation method. Disassembly and replacement can be completed without complicated tools, shortening the mold debugging time and improving the changeover efficiency of the production line.

[0035] like Figure 2 Several clamping blocks 200 and several stator frames 300 are mounted on the mounting rod 110. The number of stator frames 300 can be selected according to actual needs. Multiple stator frames 300 can be connected in series on one mounting rod 110. With the help of automated winding equipment (such as a winding machine), multi-station synchronous winding can be achieved, and multiple stators can be wound in a single operation, which improves the efficiency by several times compared to single winding.

[0036] like Figure 1 , Figure 12 and Figure 13Each stator frame 300 has clamping blocks 200 on both its upper and lower sides, and a tail top 400 is located at the end of the mounting rod 110. The stator frame 300 is provided with a winding groove 310 for winding enameled wire, which surrounds the periphery of the stator frame 300. The clamping blocks 200 serve to position and shape the stator frame 300, ensuring that the winding groove 310 maintains a preset posture during the winding process, preventing the enameled wire from winding crookedly or loosely.

[0037] like Figure 1 , Figure 2 The clamping block 200 includes a bottom clamping block 210 that contacts the clamping seat 100, a top clamping block 230 that contacts the tail top 400, and intermediate clamping blocks 220 disposed between adjacent stator frames 300. The number of intermediate clamping blocks 220 is equal to the number of layers of the stator frame 300 minus one. When the stator frame 300 is a single layer, the number of intermediate clamping blocks 220 is zero. When multiple layers of frames need to be wound, only the number of intermediate clamping blocks 220 needs to be added by "number of frames layers - 1". There is no need to replace core components such as the clamping seat 100 or the tail top 400, which can quickly build a multi-layer winding station to meet the flexible production needs of the production line. At the same time, the thickness of the intermediate clamping blocks 220 can be prefabricated to different specifications according to the motor winding design. By combining clamping blocks 200 of different thicknesses, the spacing of the stator frames 300 can be flexibly adjusted to meet various winding process requirements.

[0038] like Figure 3 The mounting rod 110 has a rectangular cross-section, and the first mounting hole 215 and the second mounting hole 340 are rectangular holes; the top clamping block 230 and the middle clamping block 220 are fixedly connected to the bottom of the first inserting block 216 and the second inserting block 217, and the first inserting block 216 and the second inserting block 217 are respectively located on both sides of the first mounting hole 215. Figure 9 , 10 12, 13. The stator frame 300 has a second mounting hole 340 with a length of L1. The length of the first mounting hole 215 is L2, the thickness of the first insert 216 is L3, and the thickness of the second insert 217 is L4. The length of the second mounting hole 340 is L1 = L2 + L3 + L4. The sum of the thicknesses of the first insert 216 and the second insert 217 of the top clamping block 230 and the middle clamping block 220 (L3 + L4) exactly fills the difference between the rectangular hole (L1) of the stator frame 300 and the rectangular hole (L2) of the clamping block 200, so that the clamping block 200 and the frame fit tightly in the axial direction without gaps, avoiding component movement caused by vibration during winding.

[0039] The middle clamping block 220 and the bottom clamping block 210 are provided with a first winding part on their sides, and the top clamping block 230 is provided with a second winding part on its side.

[0040] like Figures 6-9The first winding section includes a first connecting block 213 and a first winding post 214. The first winding section is L-shaped. The first connecting block 213 is close to the clamping block 200. The first winding post 214 is fixedly connected to one side of the first connecting block 213, and adjacent first winding posts 214 are staggered. The first winding posts 214 of adjacent clamping blocks 200 are staggered by a certain distance in the horizontal direction to form a zigzag wiring path.

[0041] like Figure 11 The second winding section includes a second winding post and a limiting post. The second winding post is fixedly connected to the side of the clamping block 200, and the limiting post is fixedly connected to the end of the winding post away from the top clamping block 230. The second winding post and the first winding post 214 are offset by a certain distance in the horizontal direction.

[0042] like Figure 6 , Figure 7 and Figure 10 The intermediate clamping block 220 and the bottom clamping block 210 are provided with a first mating portion, and the stator frame 300 is provided with a second mating portion that mates with the first mating portion. The tops of the intermediate clamping block 220 and the bottom clamping block 210 are opened downwards to form the first mating portion. The first mating portion is located on one side of the first mounting hole 215. The first mating portion includes a first clearance groove 212 and first mating surfaces 211 located on both sides of the first clearance groove 212. The bottom of the first clearance groove 212 is lower than the two first mating surfaces 211. The first clearance groove 212 can reduce the area of ​​the mating surface without affecting the fitting accuracy and fitting effect, thereby reducing processing time and processing cost. The second mating portion includes a boss 350 fixedly connected to the bottom of the stator frame 300. The bottom of the boss 350 is provided with a second mating surface, which fits against the first mating surface 211. The clamping block 200 and the frame are laterally positioned through planar contact, ensuring that the winding groove 310 is aligned in the horizontal direction and avoiding cross-layer offset during winding.

[0043] like Figures 7-11 The top clamping block 230 and the middle clamping block 220 are provided with a third mating part 218 at their bottoms, and the stator frame 300 is provided with a fourth mating part 320 at its top that mates with the third mating part 218. The third mating part 218 is a downwardly convex arc-shaped surface, and the fourth mating part 320 is a downwardly concave arc-shaped surface. The convex arc shape at the bottom of the clamping block 200 and the concave arc shape at the top of the frame form a curved surface guide structure, which facilitates the rapid stacking and alignment of multiple frames. At the same time, the curved surface contact disperses axial pressure and reduces stress concentration. The top surface of the stator frame 300 is provided with a second clearance groove 330, which is located on both sides of the second mounting hole 340. The second clearance groove 330 can reduce the area of ​​the mating surface without affecting the fitting accuracy and fitting effect, thereby reducing processing time and processing costs.

[0044] In this embodiment, by cooperating with the first docking part and the second docking part, and by cooperating with the third docking part 218 and the fourth docking part 320, it is possible to ensure that the winding maintains high precision and stability during the manufacturing process.

[0045] like Figure 5 The tail top 400 has a cavity 420 at its bottom, through which the mounting rod 110 can pass. The cavity 420 allows the bottom of the tail top 400 to contact the top clamping block 230, thereby pressing the top clamping block 230 tightly. This prevents the bottom of the tail top 400 from abutting against the mounting rod 110 and failing to press the top clamping block 230 tightly.

[0046] like Figure 3 The fixture base 100 also includes a fixture base shaft 120, which is located at the bottom of the fixture base 100. The fixture base shaft 120 has a pin hole, through which a pin 121 can be inserted for connection to an external drive shaft to drive the fixture to rotate. The tail top 400 also includes a tail top shaft 410, which is located at the top of the tail top 400.

[0047] In this embodiment, the tail tip 400 and the clamp head are not centrally positioned; the tail tip 400 simply presses against the clamp head, thus preventing over-positioning when the rotation center of the tail tip 400 and the clamp head are not concentric. The rotational eccentricity of the clamp seat shaft 120 and the tail tip shaft 410 is ≤ Φ0.3.

[0048] The clamp seat shaft 120 passes through the drive hole of the equipment, and the entire mold is rotated by the pin 121. The wire is wound from bottom to top. The wire first wraps around the first winding post 214 of the bottom clamp block 210 once, and then repeats the first layer (from bottom to top) of the stator frame 300 from bottom to top and then from top to bottom until the winding groove 310 is full. Then it wraps to the first winding post 214 of the second layer from bottom to top and repeats the first layer winding action until the top layer is full. The wire is then cut after wrapping around the second winding post of the top clamp block 230 three times. The number of stator frames 300 in the clamp is limited by the product and equipment space.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor stator winding form, characterised in that, include: The fixture includes a fixture base (100), clamping blocks (200), a stator frame (300), and a tail top (400). The clamping blocks (200) and the stator frame (300) are disposed between the fixture base (100) and the tail top (400). A mounting rod (110) is vertically disposed on the fixture base (100). A first mounting hole (215) is provided on the clamping block (200) to cooperate with the mounting rod (110). A second mounting hole (340) is provided on the stator frame (300) to cooperate with the mounting rod. Several clamping blocks (200) and several stator frames (300) are passed through the mounting rod (110). Each stator frame (300) has clamping blocks (200) on its upper and lower sides. The tail top (400) is disposed at the end of the mounting rod (110). The stator frame (300) has a winding groove (310) for winding enameled wire.

2. The motor stator winding mold according to claim 1, characterized in that: The clamping block (200) includes a bottom clamping block (210) that contacts the clamping seat (100), a top clamping block (230) that contacts the tail top (400), and an intermediate clamping block (220) disposed between adjacent stator frames (300); the number of intermediate clamping blocks (220) is equal to the number of layers of the stator frame (300) minus one. When the stator frame (300) is a single layer, the number of intermediate clamping blocks (220) is zero.

3. The motor stator winding mold according to claim 2, characterized in that: The mounting rod (110) has a rectangular cross-section, and the first mounting hole (215) and the second mounting hole (340) are rectangular holes; the top clamping block (230) and the middle clamping block (220) are fixedly connected to the bottom of the first inserting block (216) and the second inserting block (217), and the first inserting block (216) and the second inserting block (217) are respectively arranged on both sides of the first mounting hole (215); The stator frame (300) has a second mounting hole (340), the length of the second mounting hole (340) is L1, the length of the first mounting hole (215) is L2, the thickness of the first insert (216) is L3, the thickness of the second insert (217) is L4, and the length of the second mounting hole (340) is L1 = L2 + L3 + L4.

4. The motor stator winding mold according to claim 2, characterized in that: The middle clamping block (220) and the bottom clamping block (210) are provided with a first winding portion on their sides, and the top clamping block (230) is provided with a second winding portion on its side.

5. The motor stator winding mold according to claim 4, characterized in that: The first winding part includes a first connecting block (213) and a first winding post (214). The first winding part is L-shaped. The first connecting block (213) is close to the clamping block (200). The first winding post (214) is fixedly connected to one side of the first connecting block (213). Adjacent first winding posts (214) are staggered.

6. The motor stator winding mold according to claim 4, characterized in that: The second winding part includes a second winding post and a limiting post. The second winding post is fixedly connected to the side of the clamping block (200), and the limiting post is fixedly connected to the end of the winding post away from the top clamping block (230).

7. The motor stator winding mold according to claim 2, characterized in that: The intermediate clamping block (220) and the bottom clamping block (210) are provided with a first docking portion, and the stator frame (300) is provided with a second docking portion that cooperates with the first docking portion; the top of the intermediate clamping block (220) and the bottom clamping block (210) are opened downward to form the first docking portion; The first mating part is disposed on one side of the first mounting hole (215). The first mating part includes a first relief groove (212) and first mating surfaces (211) disposed on both sides of the first relief groove (212). The bottom of the first relief groove (212) is lower than the two first mating surfaces (211). The second mating part includes a boss (350) fixedly connected to the bottom of the stator frame (300), and a second mating surface is provided at the bottom of the boss (350), which is in contact with the first mating surface (211); The bottom of the top clamping block (230) and the middle clamping block (220) are provided with a third mating part (218), and the top of the stator frame (300) is provided with a fourth mating part (320) that cooperates with the third mating part (218). The third mating part (218) is a downwardly protruding arc-shaped surface, and the fourth mating part (320) is a downwardly concave arc-shaped surface. The top surface of the stator frame (300) is provided with a second clearance groove (330), and the second clearance groove (330) is provided on both sides of the second mounting hole (340).

8. The motor stator winding mold according to claim 1, characterized in that: The bottom of the tail (400) is provided with a cavity (420) into which the mounting rod (110) can be inserted.

9. The motor stator winding mold according to claim 1, characterized in that: The fixture seat (100) also includes a fixture seat shaft (120), which is located at the bottom of the fixture seat (100) and has a pin hole. The tail top (400) also includes a tail top shaft (410), which is located at the top of the tail top (400).

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