Flat wire motor winding cutting device

Abstract

The utility model discloses a flat wire motor winding cuts flat equipment, including work table, the work table top fixed mounting has installation clamping seat, the middle fixed embedding of installation clamping seat has annular clamping groove, is equipped with the cutter cage in the middle of annular clamping groove, is equipped with cutter assembly in the middle of cutter cage, and servo drive mechanism is installed to cutter cage side, and the output of servo drive mechanism is connected with cutter assembly transmission, is used for driving cutter assembly rotation, the rotation axis of cutter assembly coincides with the axis of annular clamping groove, the upper surface of annular clamping groove is assembled with cutter cage disc, and the surface of cutter cage disc is annular array distribution with a plurality of wire through -hole, a plurality of press tight elbow clamps are installed to the upper surface of installation clamping seat, and the press tight end of press tight elbow clamp corresponds with annular clamping groove up and down. The utility model overcomes the insufficient of prior art, can effectively promote the cutting precision and consistency of winding stator wire foot. And can greatly promote processing efficiency and quality stability. Simultaneously satisfies the processing demand of diversified product.

Description

Technical Field

[0001] This utility model relates to the field of drive motor manufacturing technology, specifically to a flat wire motor winding cutting device. Background Technology

[0002] With the rapid global adoption of new energy vehicles, the performance and manufacturing efficiency of drive motors, as core power components, directly impact the competitiveness of the entire vehicle. Flat-wire motors, due to their advantages such as high power density, excellent heat dissipation, and low electromagnetic noise, have become the mainstream choice for high-end models. However, the manufacturing process of flat-wire motors is significantly more complex than that of traditional round-wire motors, especially in the stator winding lead trimming stage. After winding, excess leads in the flat-wire winding need to be removed to create a flat, uniform cross-section (tolerance ≤ ±0.1mm) to ensure the reliability of subsequent laser welding. In the motor development process, the B-sample stage (a staged prototype in product development) requires verification of the production process route and tooling compatibility.

[0003] However, current wire trimming processes typically rely on manual, simple cutting fixtures to trim each slot of the winding one by one. This process is not only time-consuming and inefficient, but the flatness of the cut also depends entirely on the operator's experience, resulting in inconsistent cut quality and consequently, a higher welding defect rate, severely impacting production efficiency and product consistency. Existing trimming equipment is usually expensive and highly specialized, designed specifically for a single product, making it difficult to meet the flexible production needs of multiple varieties and small batches. Especially in the prototype stage, where product iterations are frequent, the specialized nature of the equipment becomes a limiting factor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a flat wire motor winding cutting device that overcomes these deficiencies. Its reasonable design effectively improves the cutting accuracy and consistency of the winding stator leads, significantly enhancing processing efficiency and quality stability. It also meets the processing needs of diverse products.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flat wire motor winding cutting device includes a worktable, a mounting bracket fixedly installed above the worktable, an annular groove fixedly embedded in the center of the mounting bracket, a blade cage disposed in the center of the annular groove, the blade cage fixedly installed on the worktable, a cutting blade assembly disposed in the center of the blade cage, a servo transmission mechanism mounted on the side of the blade cage, the output end of the servo transmission mechanism being connected to the cutting blade assembly for driving the cutting blade assembly to rotate; the rotation axis of the cutting blade assembly coincides with the axis of the annular groove.

[0007] The annular slot is detachably fitted with a blade cage plate, and the surface of the blade cage plate has multiple through holes arranged in a circular array; the upper surface of the mounting base is fitted with multiple clamping elbows.

[0008] Preferably, the cutter assembly includes a rotating base, a rotating bearing, and multiple cutters. The rotating base is fixedly mounted on the inner ring of the rotating bearing, and the outer ring of the rotating bearing is fixedly connected to the cutter cage. The cutters are all fixedly mounted above the rotating base, and the cutting edges of the cutters correspond to the respective through holes.

[0009] Preferably, the outer ring of the rotating bearing and the cutter cage are an integral structure.

[0010] Preferably, the output end of the servo transmission mechanism is connected to the inner ring or rotating seat of the rotating bearing.

[0011] Preferably, the servo transmission mechanism includes a servo motor, a reducer, and a worm gear. The output shaft of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to the worm gear via a coupling. A worm gear is coaxially fixedly mounted on the inner ring or rotating seat of the rotating bearing, and the worm gear meshes with the worm gear to form a worm gear transmission structure.

[0012] Preferably, multiple clamping elbows are evenly distributed circumferentially along the upper surface of the mounting base.

[0013] Preferably, a limiting arc block is fixedly connected to the upper surface of the annular slot, and a limiting flange is provided on the outer periphery of the blade cage, the limiting flange engaging with the limiting arc block.

[0014] Preferably, a limiting block is fixedly installed on the upper surface of the mounting bracket, and the limiting block is in contact with the side of the welding fixture to limit the welding fixture.

[0015] Preferably, the material feeding mechanism includes a material feeding pipe and a collection box. The collection box is installed inside the workbench. The lower end of the material feeding pipe is connected to the collection box. The upper end of the material feeding pipe extends to the top of the workbench and is fixedly installed with a material feeding hopper. The material feeding hopper is assembled below the knife cage.

[0016] This invention provides a flat wire motor winding cutting device with the following advantages: By first clamping and fixing the flat wire motor winding stator in a welding fixture, the stator wire leads remain neatly aligned during the cutting process, preventing loosening or misalignment. Simultaneously, the wire leads are guided and positioned through the through holes on the cutter cage, ensuring each lead maintains a uniform height and position during cutting, further improving cutting accuracy and consistency. The entire process only requires clamping and fixing the flat wire motor winding stator in the welding fixture, then assembling the welding fixture and cutter cage in place. The cutting assembly is then driven by a servo transmission mechanism to perform the cutting operation, achieving efficient and precise small-batch flattening processing, greatly improving processing efficiency and quality stability. Furthermore, for flat wire motor winding stators of different specifications, only a suitable cutter cage and adjustment of the welding fixture are needed for quick changeover, greatly improving the equipment's versatility and adaptability, thus meeting the processing needs of diverse products and effectively reducing equipment investment costs and production preparation time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of this utility model or the prior art will be briefly introduced below.

[0018] Figure 1 A schematic diagram of the structure of this utility model;

[0019] Figure 2 A schematic diagram of the structure of the mounting bracket, the blade cage plate, and the welding fixture in this utility model;

[0020] Figure 3 Top view of the mounting bracket in this utility model;

[0021] Figure 4 This utility model contains an assembly structure diagram of the blade cage, cutting blade assembly, and servo transmission mechanism.

[0022] Figure 5 This utility model includes an assembly structure diagram of the mounting bracket and the cutter assembly;

[0023] Figure 6 A schematic diagram of the structure of the knife cage disc in this utility model;

[0024] Figure 7 A schematic diagram of the mounting bracket structure in this utility model;

[0025] Figure 8 A schematic diagram of the material feeding mechanism in this utility model;

[0026] Explanation of the labels in the diagram:

[0027] 1. Workbench; 2. Mounting bracket; 3. Annular groove; 4. Blade cage; 5. Cutting blade assembly; 6. Servo transmission mechanism; 7. Blade cage plate; 8. Through hole; 9. Clamping elbow clamp; 10. Limiting arc block; 11. Limiting flange; 13. Limiting block; 14. Material discharge pipe; 15. Collection box; 16. Material discharge hopper; 17. Welding fixture; 51. Rotary seat; 52. Rotary bearing; 53. Cutting blade; 61. Servo motor; 62. Reducer; 63. Coupling; 64. Worm gear housing. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] Example 1, as Figure 1-8 As shown, a flat wire motor winding cutting device includes a worktable 1, a mounting bracket 2 fixedly installed on the top of the worktable 1, an annular groove 3 fixedly embedded in the middle of the mounting bracket 2, a blade cage 4 disposed in the middle of the annular groove 3, the blade cage 4 fixedly installed on the worktable 1, a cutting blade assembly 5 disposed in the middle of the blade cage 4, a servo transmission mechanism 6 mounted on the side of the blade cage 4, the output end of the servo transmission mechanism 6 being connected to the cutting blade assembly 5 for driving the cutting blade assembly 5 to rotate; the rotation axis of the cutting blade assembly 5 coincides with the axis of the annular groove 3.

[0030] The upper surface of the annular slot 3 is detachably fitted with a blade cage plate 7, and the surface of the blade cage plate 7 has multiple through holes 8 arranged in an annular array; the upper surface of the mounting base 2 is fitted with multiple clamping elbows 9, and the clamping ends of the clamping elbows 9 correspond vertically to the blade cage plate 7.

[0031] Working principle:

[0032] When cutting flat wire motor windings, firstly, the corresponding cutter cage 7 and welding fixture 17 are matched according to the specifications of the flat wire motor windings. Then, the stator of the flat wire motor winding to be cut is clamped and fixed by the welding fixture 17. Next, the matching cutter cage 7 is fixedly installed on the upper surface of the welding fixture 17, so that the wires of the winding stator pass through the through holes 8 on the surface of the cutter cage 7. Then, the welding fixture 17, the cutter cage 7, and the flat wire motor winding stator to be cut are inverted and installed on the annular slot 3. The circumferential positioning is achieved by the cooperation between the cutter cage 7 and the annular slot 3. At this time, the wires of the winding stator are located directly above the cutting blade assembly 5 inside the cutter cage 4. Then, the welding fixture 17 is pressed down and fixed on the mounting base 2 by the clamping elbow 9 to ensure that the winding stator remains stable during the subsequent cutting process.

[0033] Next, the servo drive mechanism 6 is activated to drive the cutting blade assembly 5 to rotate precisely. This rotation of the cutting blade assembly 5 efficiently and accurately flattens the stator winding leads, ensuring consistent height of all exposed leads after flattening and preventing height differences between copper wires, thus guaranteeing consistent welding quality. After flattening, the clamping elbow 9 is released, and the welding fixture 17, the blade cage 7, and the flattened stator winding assembly are removed from the annular slot 3. This completes the efficient and precise flattening of the stator winding leads of the flat wire motor. Repeating these steps allows for the flattening operation of the next flat wire motor winding stator, enabling the flattening of small batches of samples.

[0034] In this invention, by first clamping and fixing the flat wire motor winding stator in the welding fixture 17, the stator leads remain neatly arranged during the cutting process, preventing loosening or misalignment. Simultaneously, the leads are guided and positioned by the through holes 8 on the cutter cage 7, ensuring each lead maintains a uniform height and position during cutting, further improving cutting accuracy and consistency. The entire process only requires clamping and fixing the flat wire motor winding stator in the welding fixture 17, then assembling the welding fixture with the cutter cage. The servo transmission mechanism then drives the cutting assembly for cutting, achieving efficient and precise small-batch flattening processing, significantly improving processing efficiency and quality stability. Furthermore, for flat wire motor winding stators of different specifications, only the appropriate cutter cage 7 needs to be replaced and the welding fixture adjusted for rapid changeover, greatly improving the equipment's versatility and adaptability, thus meeting the processing needs of diverse products and effectively reducing equipment investment costs and production preparation time.

[0035] Example 2, as Figure 4As shown, as a further preferred embodiment of the first embodiment, the cutter assembly 5 includes a rotating seat 51, a rotating bearing 52, and multiple cutters 53. The rotating seat 51 is fixedly mounted on the inner ring of the rotating bearing 52, and the outer ring of the rotating bearing 52 is coaxially fixedly connected to the cutter cage 4. The output end of the servo transmission mechanism 6 is connected to the inner ring of the rotating bearing 52 or the rotating seat 51. The cutters 53 are all fixedly mounted above the rotating seat 51, and the multiple cutters 53 are centrally symmetrically distributed on the upper surface of the rotating seat 51. The cutting edge of the cutter 53 corresponds to the through hole 9. Therefore, when flattening the wire leads, the output of the servo transmission mechanism 6 is controlled to drive the inner ring of the rotating bearing 52 or the rotating seat 51 to rotate, thereby driving multiple cutters 53 mounted on it to rotate synchronously. The rotational motion of each cutter 53 performs efficient and precise flattening of the winding stator wire leads, thus effectively ensuring the height consistency of the wire leads after cutting. At the same time, since the cutting edge of each cutter 53 corresponds to the cutting position of each wire lead, synchronous cutting can be achieved in one go during the cutting process, which greatly improves the efficiency of the wire leads and reduces cutting errors.

[0036] In this embodiment, the outer ring of the rotating bearing 52 and the blade cage 4 can be integrated into one structure, that is, the blade cage 4 serves as the outer ring of the rotating bearing 52, while the inner ring of the rotating bearing 52 is fixedly connected to the rotating seat 51, thereby making the overall structure more compact and stable, reducing the number of parts and assembly errors, and further improving the operating accuracy and reliability of the equipment.

[0037] In Example 3, as a further preferred embodiment of Example 2, the servo transmission mechanism 6 includes a servo motor 61, a reducer 62, and a worm gear. The output shaft of the servo motor 61 is connected to the input end of the reducer 62, and the output end of the reducer 62 is connected to the worm gear via a coupling 63. A worm gear is coaxially fixedly mounted on the inner ring of the rotating bearing 52 or the rotating seat 51. The worm gear meshes with the worm gear, forming a worm gear worm gear transmission structure. A worm gear housing is fitted around the worm gear, and both ends of the worm gear are rotatably connected inside the worm gear housing via bearings. The worm gear housing is fixedly mounted on one side of the cutter cage 4. Therefore, when the inner ring of the rotating bearing 52 or the rotating seat 51 is driven to rotate, the output shaft of the servo motor 61 is controlled to rotate. After being reduced in speed and increased in torque by the reducer 62, the worm gear is driven to rotate via the coupling 63. Through the meshing transmission between the worm gear and the worm gear, the worm gear and the inner ring of the rotating bearing 52 or the rotating seat 51 rotate synchronously, thereby driving the multiple cutters 53 mounted on the rotating seat 51 to rotate synchronously.

[0038] In Example 4, as a further preferred embodiment of Example 1, multiple clamping elbows 9 are evenly distributed circumferentially along the upper surface of the mounting base 2. The clamping ends of the clamping elbows 9 are positioned facing the axis of the mounting base 2 to circumferentially fix the welding fixture 17. After the welding fixture 17, the cutter cage 7, and the flat wire motor winding stator to be cut are inverted and mounted on the annular groove 3, the multiple clamping elbows 9 can move synchronously to clamp the outer periphery of the welding fixture 17, thereby effectively preventing the winding stator from shifting or rotating during the cutting operation, ensuring the stability of the wire position and the cutting accuracy during the cutting process.

[0039] Example 5, as Figure 6-7 As shown, in a further preferred embodiment, a limiting arc block 10 is fixedly connected to the upper surface of the annular groove 3, and a limiting flange 11 is integrally provided on the outer circumference of the blade cage 7. The limiting flange 11 and the limiting arc block 10 are engaged and fitted together. Through the cooperation between the limiting arc block 10 and the limiting flange 11 on the outer circumference of the blade cage 7, rapid limiting and fixing of the blade cage 7 in the circumferential direction can be achieved, preventing the blade cage 7 from rotating circumferentially during operation, ensuring that the cutting assembly 5 maintains a stable rotational state during cutting operations, thereby further improving cutting accuracy and stability.

[0040] Example 6, as Figure 7 As shown, as a further preferred embodiment, a limiting block 13 is fixedly installed on the upper surface of the mounting bracket 2. The limiting block 13 contacts the side of the welding fixture 17 and is used to limit the welding fixture to ensure that the welding fixture remains stable during the process of cutting the wires of the winding stator and to avoid cutting deviation caused by the loosening of the fixture.

[0041] Example 7, as Figure 8 As shown, as a further preferred embodiment of the first embodiment, a material feeding mechanism is also included. This mechanism includes a material feeding pipe 14 and a collection box 15. The collection box 15 is installed inside the workbench 1. The lower end of the material feeding pipe 14 is connected to the collection box 15, and the upper end of the material feeding pipe 14 extends above the workbench 1 and is fixedly mounted with a material feeding hopper 16. The material feeding hopper 16 is mounted below the cutter cage 4. Therefore, when cutting the wire leads of the winding stator, the cut waste material can fall directly into the material feeding hopper 16, and then be transported to the collection box 15 for centralized collection through the input of the material feeding pipe 14. This effectively avoids waste accumulation affecting equipment operation or causing cleaning difficulties. It also further optimizes the working environment and reduces manual maintenance costs.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flat wire motor winding cutting device, characterized in that: The device includes a workbench (1), a mounting bracket (2) fixedly installed on the top of the workbench (1), an annular groove (3) fixedly embedded in the middle of the mounting bracket (2), a blade cage (4) provided in the middle of the annular groove (3), the blade cage (4) fixedly installed on the workbench (1), a cutting blade assembly (5) provided in the middle of the blade cage (4), a servo transmission mechanism (6) installed on the side of the blade cage (4), the output end of the servo transmission mechanism (6) being connected to the cutting blade assembly (5) for driving the cutting blade assembly (5) to rotate; the rotation axis of the cutting blade assembly (5) coincides with the axis of the annular groove (3); The annular slot (3) is detachably fitted with a blade cage plate (7), and the blade cage plate (7) has multiple through holes (8) arranged in an annular array on its surface; the mounting base (2) is fitted with multiple clamping elbows (9).

2. The flat wire motor winding flattening device according to claim 1, characterized in that: The cutter assembly (5) includes a rotating seat (51), a rotating bearing (52), and multiple cutters (53). The rotating seat (51) is fixedly mounted on the inner ring of the rotating bearing (52), and the outer ring of the rotating bearing (52) is fixedly connected to the cutter cage (4). The cutters (53) are all fixedly mounted above the rotating seat (51), and the cutting edge of the cutter (53) corresponds to each through hole (9).

3. The flat wire motor winding flattening device according to claim 2, characterized in that: The outer ring of the rotating bearing (52) and the blade cage (4) are an integral structure.

4. The flat wire motor winding flattening device according to claim 2, characterized in that: The output end of the servo transmission mechanism (6) is connected to the inner ring of the rotating bearing (52) or the rotating seat (51) for transmission.

5. A flat wire motor winding cutting device according to claim 4, characterized in that: The servo transmission mechanism (6) includes a servo motor (61), a reducer (62) and a worm gear. The output shaft of the servo motor (61) is connected to the input end of the reducer (62). The output end of the reducer (62) is connected to the worm gear through a coupling (63). The inner ring of the rotating bearing (52) or the rotating seat (51) is coaxially fixedly mounted with a worm gear. The worm gear meshes with the worm gear to form a worm gear worm transmission structure.

6. The flat wire motor winding flattening device according to claim 1, characterized in that: Multiple clamping elbows (9) are evenly distributed circumferentially along the upper surface of the mounting base (2).

7. The flat wire motor winding flattening device according to claim 1, characterized in that: The upper surface of the annular groove (3) is fixedly connected to a limiting arc block (10), and the outer edge of the blade cage (7) is provided with a limiting flange (11), which is engaged with the limiting arc block (10).

8. The flat wire motor winding flattening device according to claim 1, characterized in that: A limiting block (13) is fixedly installed on the upper surface of the mounting bracket (2). The limiting block (13) is in contact with the side of the welding fixture and is used to limit the welding fixture.

9. A flat wire motor winding cutting device according to claim 1, characterized in that: It also includes a material discharge mechanism, which includes a material discharge pipe (14) and a collection box (15). The collection box (15) is installed inside the workbench (1). The lower end of the material discharge pipe (14) is connected to the collection box (15). The upper end of the material discharge pipe (14) extends to the top of the workbench (1) and is fixedly installed with a material discharge hopper (16). The material discharge hopper (16) is assembled below the knife cage (4).

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