Stator thread end depainting and stranding device

Abstract

The utility model relates to a stator wire end paint-removing and wire-stranding device comprising a main support, the main support is provided with a power source and a main shaft driven by the power source, the main shaft is linked with a paint-removing and wire-stranding roller group, and a wire to be processed is rolled, twisted and paint-removed by the paint-removing and wire-stranding roller group. The depainting stranded wire roller group comprises a plurality of roller shafts which are arranged in a circumferential array, and equidirectional notch threads are formed on each roller shaft; an extrusion inner cavity used for containing a to-be-machined line is formed between the roller shafts, and the to-be-machined line is cut and driven by the notch threads. According to the utility model, the stator outgoing line is fed into the extrusion inner cavity, and paint removing and twisting actions are simultaneously completed under the cutting of the plurality of notch threads and the action of spiral guiding and stretching. And the taken-out finished product is in a depainted and stranded state, and procedure operation does not need to be carried out independently, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle motor stator processing equipment, in particular to a stator wire end paint stripping and twisting device. Background Art

[0002] The application of motors has become popular in all walks of life. As a key component inside the motor, the stator has received widespread attention in the industry for improving its production efficiency during its manufacturing process.

[0003] Taking electric vehicle motors as an example, in order to improve the production efficiency of motors, ordinary motor stator lead wires are currently stripped by chemical methods or grinding wheel methods. Both methods can only ensure that the enameled wires after the paint film is removed are twisted and twisted, which greatly wastes operation time and hinders the promotion of lean and efficient production. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a stator wire end paint stripping and stranding device with a reasonable structure, which can perform paint stripping and stranding at the same time, has a smaller structure and higher efficiency.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A stator wire end paint stripping and stranding device comprises a main bracket, a power source and a main shaft driven by the power source are provided on the main bracket, a paint stripping and stranding roller group is linked to the main shaft, and the wire to be processed is wound, twisted and stripped by the paint stripping and stranding roller group.

[0007] The paint stripping stranded wire roller assembly includes a plurality of roller shafts arranged in a circumferential array, each roller shaft is formed with a same-direction cut thread; an extrusion cavity for accommodating the wire to be processed is formed between the roller shafts, and the wire to be processed is cut and driven by the cut thread.

[0008] As a further improvement of the above technical solution:

[0009] The inlet end of the paint stripping stranded wire roller assembly is connected to a guide sleeve, and a guide horn cavity is formed inside the guide sleeve.

[0010] A limiting step is provided at the end of each roller shaft, and a second through hole adapted to be installed with the limiting step and a third through hole for feeding the wire are provided at the small end of the guide sleeve.

[0011] An anti-collision ring is arranged on the circumference of the large end of the guide sleeve, and the anti-collision ring is covered on the edge of the guide sleeve.

[0012] A first through hole is provided on one end surface of the main shaft close to the paint stripping stranded wire roller, and the first through hole is adapted to be installed with the limiting step of the roller shaft; the main shaft, the paint stripping stranded wire roller and the guide sleeve are coaxially arranged.

[0013] A protective ring is coaxially installed on one end of the main shaft close to the paint stripping stranded wire roller. The protective ring is concentrically provided with accommodating holes, and a first through hole is provided in a circumferential array of the accommodating holes.

[0014] The main shaft is coaxially provided with an axial hole which passes through the main shaft body, and the axial hole is communicated with the accommodating hole and the extrusion inner cavity.

[0015] The cut portion of the cut thread is a chamfered edge.

[0016] The inner diameter of the extrusion cavity is smaller than the diameter of the processing line in the initial state.

[0017] The power source includes a driving motor and a belt transmission assembly connecting an output shaft of the driving motor and a main shaft.

[0018] The beneficial effects of the utility model are as follows:

[0019] The present invention has a compact and reasonable structure and is easy to operate. According to the product characteristics of the stator lead wire, when the lead wires at the head and tail ends of the winding need to be stripped of paint and connected to the strands, the lead wires can be directly inserted into the tooling equipment of this solution. By utilizing the characteristics of the equipment design, the stator lead wires are fed into the extrusion cavity, and under the action of multiple incision thread cutting and spiral guide stretching, the paint stripping and twisting actions are completed simultaneously. After being taken out, the finished product is in a state of stripping paint and stranding, without the need for separate process operations, thereby simplifying and reducing the process and time of this link in the manufacture of the motor stator, thereby improving production efficiency and creating more value per unit time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the main view of the overall structure of the utility model.

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model.

[0022] Figure 3 It is an exploded view of the overall structure of the utility model.

[0023] Figure 4 This is a schematic diagram of the roller shaft position relationship of the paint stripping and stranding roller group of the present invention.

[0024] Figure 5 It is a cross-sectional view of the guide sleeve of the present utility model.

[0025] Figure 6 It is a three-dimensional diagram of the guide sleeve of the present utility model.

[0026] Figure 7 This is a schematic diagram of the angle of looking into the extrusion cavity from the guide sleeve. The purple part in the figure is the stator lead wire.

[0027] Including: 1. Main bracket; 2. Drive motor; 3. Main shaft; 4. Paint stripping and stranding roller assembly; 5. Guide sleeve; 6. Drive pulley; 7. Drive pulley; 8. Belt loop;

[0028] 301, first through hole; 302, protective ring; 303, receiving hole; 304, shaft hole;

[0029] 401, roller shaft; 402, cut thread; 403, extrusion cavity; 404, limit step;

[0030] 501, second through hole; 502, third through hole; 503, anti-collision ring. DETAILED DESCRIPTION

[0031] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0032] like Figure 1-Figure 7 As shown, the stator wire end paint stripping and stranding device of this embodiment includes a main bracket 1, a power source and a main shaft 3 driven by the power source are provided on the main bracket 1, and a paint stripping and stranding roller group 4 is linked to the main shaft 3. The wire to be processed is wound, twisted, and paint stripped by the paint stripping and stranding roller group 4.

[0033] The paint stripping strand roller group 4 includes several roller shafts 401 arranged in a circumferential array, each roller shaft 401 is formed with a same-direction cut thread 402; an extrusion cavity 403 for accommodating the wire to be processed is formed between the roller shafts 401, and the wire to be processed is cut and driven by the cut thread 402.

[0034] The inlet end of the paint stripping stranding roller group 4 is connected to a guide sleeve 5, and a guide horn cavity is formed inside the guide sleeve 5.

[0035] A limiting step 404 is provided at the end of each roller shaft 401 , and a second through hole 501 adapted to be mounted on the limiting step 404 and a third through hole 502 for feeding the wire are provided at the small end of the guide sleeve 5 .

[0036] An anti-collision ring 503 is provided on the circumference of the large end of the guide sleeve 5 , and the anti-collision ring 503 is covered on the edge of the guide sleeve 5 .

[0037] A first through hole 301 is provided on one end surface of the main shaft 3 close to the paint stripping stranded wire roller, and the first through hole 301 is adapted to be installed with the limiting step 404 of the roller shaft 401; the main shaft 3, the paint stripping stranded wire roller and the guide sleeve 5 are coaxially arranged.

[0038] A protective ring 302 is coaxially mounted on one end of the main shaft 3 close to the paint stripping stranding roller. An accommodating hole 303 is concentrically formed on the protective ring 302 . A first through hole 301 is formed in a circumferential array of the accommodating holes 303 .

[0039] The main shaft 3 is coaxially provided with an axial hole 304 penetrating the main shaft 3 axial body, and the axial hole 304 is communicated with the accommodating hole 303 and the extrusion inner cavity 403 .

[0040] The cut portion of the cut thread 402 is a chamfered edge.

[0041] The inner diameter of the extrusion cavity 403 is smaller than the diameter of the processing line in the initial state.

[0042] The power source includes a drive motor 2 and a belt transmission assembly connecting an output shaft of the drive motor 2 and a main shaft 3 .

[0043] The specific structure and working process of the utility model are as follows:

[0044] The device provided by the utility model is different from the single-function stator enameled wire stripping or stranding equipment. During operation, it can perform two actions of stripping and stranding at the same time, realizing the integration of two functions on one tool.

[0045] like Figures 1 to 3 As shown, the main bracket 1 is the reference of the entire device, including a horizontally arranged base plate and two vertical plates installed vertically on the base plate. Coaxial through holes are provided on the two vertical plates, and a main shaft 3 is passed through the through holes. One end of the main shaft 3 is driven by a motor dragged by a power source, and the other end is connected to a paint stripping strand roller group 4, which is used to strip the stator lead wire. The main shaft 3 and the through hole are rotatably connected via a bearing. An axial hole 304 is coaxially provided inside the main shaft 3. On the end face of the main shaft 3 close to the guide sleeve 5, in addition to the axial hole 304 located at the center of the circle, there is a first through hole 301 arranged in a circumferential array around the axial hole 304.

[0046] The traction motor is fastened to the main bracket 1 by bolts. The output shaft of the traction motor passes through a vertical plate to form a limit. The output shaft drives a driving wheel 7. The end of the main shaft 3 is connected to a driving wheel 6. The driving wheel 7 and the driving wheel 6 are transmitted through a belt ring 8.

[0047] One end of the main shaft 3 where the paint stripping stranded wire roller group 4 is provided has a shaft shoulder and a guide sleeve 5 , and the paint stripping stranded wire roller group 4 is installed between the shaft shoulder and the guide sleeve 5 .

[0048] like Figure 5 and Figure 6 As shown, the guide sleeve 5 has a bell-mouth structure with a bell-shaped cavity formed inside. The large end of the guide sleeve 5 is connected to an anti-collision ring 503, which is axially bonded to the feed-side opening of the guide sleeve 5. The small end of the guide sleeve 5 is a plate with several holes, including a third through-hole 502 at the center of the circle and a circumferential array of second through-holes 501 surrounding the third through-hole 502. In one embodiment of the present invention, three second through-holes 501 are provided.

[0049] The paint stripping and stranding roller assembly 4 comprises three roller shafts 401 with cutout threads 402. Each roller shaft 401 has a limiting step 404 at both ends. One end of the limiting step 404 of each roller shaft 401 passes through the second through-hole 501, and the other end passes through the first through-hole 301 of the main shaft 3, thereby coaxially and fixedly connecting the main shaft 3, the paint stripping and stranding roller assembly 4, and the guide sleeve 5.

[0050] like Figure 4 As shown, the space between the three roller shafts 401 of the paint stripping and stranding roller assembly 4 forms an extrusion cavity 403. The two ends of the extrusion cavity 403 are connected to the third through-hole 502 in the guide sleeve 5 and the axial hole 304 in the main shaft 3, respectively. The outer circumference of each roller shaft 401 features several evenly spaced cutout threads 402, ensuring uniform rotational direction and rhythm during transmission. The cutouts 402 feature a slightly beveled blade structure and are spirally oriented in the same direction.

[0051] Combined with reference Figure 7 When the multiple enameled wires of the nail winding enter the extrusion cavity 403 of the paint stripping and stranding roller assembly 4 along the third through hole 502 of the guide sleeve 5, the enameled wires contact the paint stripping and stranding roller assembly 4. The wires are rotated and drawn into the extrusion cavity 403 by the cut threads 402 on the paint stripping and stranding roller assembly 4. The wires are cut by the cuts in the extrusion cavity 403, undergoing external paint stripping. The spiral action simultaneously completes the rotational stranding and twisting of the wires. The final product is in a state of complete paint stripping and stranding, greatly simplifying the original process of separate paint stripping and stranding. If the length of a portion of the paint stripping stranded wire is greater than the axial length of the paint stripping and stranding roller assembly 4, the end of the finished product can extend into the axial hole 304, which provides temporary storage space.

[0052] When the stator lead wire is too short, the anti-collision ring 503 prevents rigid impact between the enameled wire and the equipment, reducing the probability of damage to the enameled wire.

[0053] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A stator wire end paint stripping and stranding device, comprising a main bracket (1), characterized in that: The main support (1) is provided with a power source and a main shaft (3) driven by the power source. The main shaft (3) is linked with a paint stripping strand roller group (4). The wire to be processed is wound, twisted, and paint stripped by the paint stripping strand roller group (4). The paint stripping strand roller assembly (4) comprises a plurality of roller shafts (401) arranged in a circumferential array, each roller shaft (401) being formed with a unidirectional incision thread (402); an extrusion inner cavity (403) for accommodating the wire to be processed is formed between the roller shafts (401), and the wire to be processed is cut and driven by the incision thread (402).

2. The stator wire end paint stripping and stranding device according to claim 1, characterized in that: The inlet end of the paint stripping stranded wire roller group (4) is connected to a guide sleeve (5), and a guide horn cavity is formed inside the guide sleeve (5).

3. The stator wire end paint stripping and stranding device according to claim 2, characterized in that: The end of each roller shaft (401) is provided with a limiting step (404), and the small end of the guide sleeve (5) is provided with a second through hole (501) adapted to be mounted with the limiting step (404) and a third through hole (502) for feeding the wire.

4. The stator wire end paint stripping and stranding device according to claim 2, characterized in that: The large end circumference of the guide sleeve (5) is provided with an anti-collision ring (503), and the anti-collision ring (503) is covered on the edge of the guide sleeve (5).

5. The stator wire end paint stripping and stranding device according to claim 3, characterized in that: A first through hole (301) is provided on an end surface of the main shaft (3) close to the paint stripping stranded wire roller, and the first through hole (301) is adapted to be installed with a limiting step (404) of the roller shaft (401); the main shaft (3), the paint stripping stranded wire roller, and the guide sleeve (5) are coaxially arranged.

6. The stator wire end paint stripping and stranding device according to claim 5, characterized in that: A protective ring (302) is coaxially mounted on one end of the main shaft (3) close to the paint stripping stranded wire roller. An accommodating hole (303) is coaxially provided on the protective ring (302). A first through hole (301) is provided in a circumferential array of the accommodating holes (303).

7. The stator wire end paint stripping and stranding device according to claim 6, characterized in that: The main shaft (3) is coaxially provided with an axial hole (304) penetrating the main shaft (3) shaft body, and the axial hole (304) is communicated with the accommodating hole (303) and the extrusion inner cavity (403).

8. The stator wire end paint stripping and stranding device according to claim 1, characterized in that: The cut portion of the cut thread (402) is a chamfered edge.

9. The stator wire end paint stripping and stranding device according to claim 1, characterized in that: The inner diameter of the extrusion cavity (403) is smaller than the diameter of the processing line in the initial state.

10. The stator wire end paint stripping and stranding device according to claim 1, characterized in that: The power source comprises a drive motor (2) and a belt transmission assembly connecting an output shaft of the drive motor (2) and a main shaft (3).

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