An automatic clamping fixture for XPIN welding

Abstract

This utility model discloses an automatic clamping fixture for XPIN welding, which effectively facilitates the clamping of copper wires. It includes a substrate with multiple radially movable push teeth inside. A turntable rotatably connected to the upper side of the substrate drives the push teeth. A cover plate is fixedly connected to the upper side of the substrate, and a dust suction hood for suctioning dust from the stator end is provided on the upper side of the cover plate. An internal support assembly is provided inside the substrate, which cooperates with the corresponding push teeth to form a copper wire clamping structure. This utility model has a novel structure, ingenious design, and simple and convenient operation. It effectively facilitates the adsorption of dust during the welding process and allows for clamping of copper wires from both sides. It can be adapted to stators of different sizes and layers.

Description

Technical Field

[0001] This utility model belongs to the field of XPIN welding technology for motor stators, and relates to an automatic clamping fixture for XPIN welding. Background Technology

[0002] As a core component, the manufacturing precision and reliability of the motor stator directly affect the overall performance of the motor. During stator manufacturing, the connection of the end copper wires typically requires welding. During welding, multiple layers of copper wires must be stably and precisely clamped and fixed to ensure accurate welding positions and consistent joint quality. Furthermore, the welding process generates metal dust and spatter, which not only pollutes the working environment but may also affect equipment lifespan and operator health, and even reduce weld quality.

[0003] Currently, the commonly used stator end copper wire clamping solutions in the industry mostly employ dedicated fixtures designed for specific stator models. These fixtures typically have a fixed structure, and the size and position of the internal support blocks or grippers are not adjustable. Therefore, a single set of fixtures is often only suitable for stators of a single specification and with a single layer of winding. When the product model changes or different layers of stators are produced, the entire fixture needs to be replaced or complex mechanical adjustments need to be made, resulting in poor equipment flexibility, long changeover times, and increased production costs.

[0004] On the other hand, existing clamping fixtures typically have limited functionality. Clamping and dust removal are often two separate processes or require additional dust removal equipment, which increases process complexity, occupies production line space, and hinders further improvements in operational efficiency. Although some integrated solutions have been proposed, such as the Chinese invention patent application number 202510028608.3 entitled "Clamping and Shaping Equipment and Process for Xpin Stator," which improves the clamping method and structure, there is still room for optimization in terms of size adaptability, layer versatility, and automation integration when facing diverse, small-batch production needs.

[0005] Therefore, there is a need for an automatic clamping fixture for XPIN welding that can integrate reliable clamping and effective dust removal, and flexibly adapt to stators of different sizes and layers of copper wire, so as to improve the flexibility, automation and overall efficiency of the production line and reduce the cost and time loss caused by product changeover. Utility Model Content

[0006] To address the aforementioned problems, this invention proposes an automatic clamping fixture for XPIN welding, which effectively solves the issues in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An automatic clamping fixture for XPIN soldering includes a substrate. The substrate has multiple push teeth that can move radially along the substrate. A turntable that can drive the push teeth to move is rotatably connected to the upper side of the substrate. A cover plate is fixedly connected to the upper side of the substrate. A dust suction hood for suctioning dust from the stator end is provided on the upper side of the cover plate. An inner support assembly is provided inside the substrate. The inner support assembly and the corresponding push teeth cooperate with each other to form a copper wire clamping structure.

[0009] Preferably, the turntable has a plurality of arc-shaped grooves arranged in a circular array, and the base plate has a plurality of sliding grooves arranged radially. Each push tooth is slidably connected to the corresponding sliding groove, and a cam follower is fixedly connected to the upper side of each push tooth. The upper side of each cam follower is slidably connected to the interior of the corresponding arc-shaped groove.

[0010] Preferably, a rocker arm for driving the turntable to rotate is fixedly connected to the upper side of the turntable.

[0011] Preferably, the left and right sides of the dust cover are each connected to a pipe for connecting a vacuum cleaner.

[0012] Preferably, the inner support assembly includes an inner support fixing plate, an inner support fixing cylinder, and an inner support bottom plate. The inner support fixing plate is concentrically fixed to the middle of the cover plate, the inner support fixing cylinder is fixedly connected to the lower side of the inner support fixing plate, and the inner support bottom plate is fixedly connected to the lower side of the inner support fixing cylinder. The middle of the inner support fixing cylinder is provided with an inner support part for cooperating with the push teeth to clamp the copper wire.

[0013] Preferably, the inner support portion includes an inner support plate one, an inner support plate two, and an inner support plate three with different outer diameters, and the inner support plate one, the inner support plate two, and the inner support plate three can all move radially along the substrate.

[0014] Preferably, the inner support fixing cylinder has a movable column that can move up and down inside. The inner support plate 1, inner support plate 2 and inner support plate 3 are all fixedly connected to the side of the movable column. The movable column is fixedly connected to a slider that corresponds to the cam follower 2 one by one. Each slider is provided with a sliding groove. Each cam follower 2 is slidably connected to the corresponding sliding groove. The movable column moves up and down to form a structure in which the cam follower 2 moves radially along the base plate.

[0015] Preferably, a cylinder is fixedly connected to the lower side of the inner support base plate, and the output end of the cylinder passes through the inner support base plate and is fixedly connected to the bottom of the movable column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model has a dust suction hood. By setting the dust suction hood, when in use, the end of the pipe away from the dust suction hood is connected to a vacuum cleaner, so as to achieve the purpose of dust suction at the end of the stator during the welding process.

[0018] 2. This utility model has an inner support assembly and push teeth. By adjusting the outer diameter of the inner support assembly and the position of each push tooth, the stator is then pushed upward to the bottom of the entire fixture. At this time, the stator is located between the inner support assembly and the push teeth. The operating turntable drives the push teeth to move closer to the inner support assembly, thereby achieving the clamping of the copper wire at the end of the stator. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the slide groove in this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the inner support plate three in this utility model.

[0023] Figure 5 This is a schematic diagram of the pusher tooth structure in this utility model.

[0024] In the diagram: 1. Base plate; 2. Push tooth; 3. Turntable; 4. Cover plate; 5. Dust hood; 6. Arc groove; 7. Slide groove; 8. Cam follower one; 9. Rocker arm; 10. Pipe; 11. Inner support fixing plate; 12. Inner support fixing cylinder; 13. Inner support base plate; 14. Inner support plate one; 15. Inner support plate two; 16. Inner support plate three; 17. Movable column; 18. Cam follower two; 19. Slider; 20. Slide groove; 21. Cylinder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The following is in conjunction with the appendix Figures 1 to 5 The specific embodiments of this utility model will be described in further detail.

[0027] Depend on Figures 1 to 5As shown, this utility model includes a substrate 1. To facilitate clamping of copper wires and adsorption of dust during the welding process, the substrate 1 has multiple push teeth 2 that can move radially along the substrate 1. A turntable 3 that can drive the push teeth 2 is rotatably connected to the upper side of the substrate 1. A cover plate 4 is fixedly connected to the upper side of the substrate 1. A dust suction hood 5 for suctioning dust from the stator end is provided on the upper side of the cover plate 4. An inner support assembly is provided inside the substrate 1. The inner support assembly and the corresponding push teeth 2 cooperate with each other to form a copper wire clamping structure. A pipe 10 for connecting a vacuum cleaner is connected to each of the left and right sides of the dust suction hood 5.

[0028] When in use, the motor stator can be placed on the rotating lifting mechanism. At this time, by adjusting the outer diameter of the inner support assembly and the position of each push tooth 2, the stator is pushed upward to the bottom of the entire fixture. At this time, the stator is located between the inner support assembly and the push tooth 2. The operating turntable 3 drives the push tooth 2 to move closer to the inner support assembly, which can achieve the clamping of the copper wire at the end of the stator.

[0029] By setting up a dust collection hood 5, and connecting the end of the pipe 10 away from the dust collection hood 5 to a vacuum cleaner during use, the purpose of dust collection at the stator end can be achieved during the welding process.

[0030] Furthermore, by Figures 1 to 5 As shown, in order to facilitate the clamping of copper wires, multiple arc-shaped grooves 6 are arranged in a circular array on the turntable 3, and multiple sliding grooves 7 are arranged radially on the substrate 1. Each push tooth 2 is slidably connected to the corresponding sliding groove 7, and a cam follower 8 is fixedly connected to the upper side of each push tooth 2. The upper side of each cam follower 8 is slidably connected to the interior of the corresponding arc-shaped groove 6. A rocker arm 9 for driving the turntable 3 to rotate is fixedly connected to the upper side of the turntable 3.

[0031] In use, by setting the slide groove 7, it can be ensured that each push tooth 2 can move along the radial direction of the substrate 1. When the turntable 3 is rotated by driving the swing rod 9, the cam follower 8 can drive the push tooth 2 to move along the slide groove 7 due to the cooperation between the arc groove 6 and the cam follower 8, thereby realizing the structure of the push tooth 2 moving along the radial direction of the substrate 1.

[0032] It should be noted that the rocker arm 9 serves as the driving component of the turntable 3. The rocker arm 9 drives the turntable 3 to rotate, causing the cam follower 8 to move along the arc groove 6 and the slide groove 7, thereby achieving the purpose of the pusher tooth 2 reciprocating along the radial direction of the base plate 1. In addition, the rocker arm 9 can be driven by other driving mechanisms.

[0033] Furthermore, by Figures 1 to 5As shown, in order to facilitate clamping the copper wire from both sides, the inner support assembly includes an inner support fixing plate 11, an inner support fixing cylinder 12, and an inner support bottom plate 13. The inner support fixing plate 11 is concentrically fixed to the middle of the cover plate 4, the inner support fixing cylinder 12 is fixedly connected to the lower side of the inner support fixing plate 11, and the inner support bottom plate 13 is fixedly connected to the lower side of the inner support fixing cylinder 12. The inner support fixing cylinder 12 has an inner support part in the middle for cooperating with the push teeth 2 to clamp the copper wire.

[0034] Furthermore, by Figures 1 to 5 As shown, in order to facilitate the clamping of copper wires, the inner support includes inner support plate 14, inner support plate 25 and inner support plate 36 with different outer diameters. Inner support plate 14, inner support plate 25 and inner support plate 36 can all move radially along the substrate 1.

[0035] In use, the inner support fixing plate 11, the inner support fixing cylinder 12, and the inner support base plate 13 are used to fix the inner support part. The inner support fixing cylinder 12 is concentrically arranged with the base plate 1. During use, by setting inner support plate one 14, inner support plate two 15, and inner support plate three 16 with different outer diameters, they can cooperate with the push teeth 2 to clamp multiple layers of copper wires. In addition, since the outer diameters of inner support plate one 14, inner support plate two 15, and inner support plate three 16 are different, this embodiment takes six layers of copper wire as an example. The inner support plate one 14, inner support plate two 15, and inner support plate three 16 cooperate with the push teeth 2 at the corresponding positions to achieve clamping of the copper wires at the end of the XPIN stator.

[0036] In addition, each pusher tooth 2 has a downwardly extending L-shaped protrusion on the side near the movable column 17. This design allows the copper wire at the stator end to be accommodated when the substrate 1 is placed over the stator end. The bottom of the inner support plate 14, inner support plate 25 and inner support plate 36 also have grooves, which can also accommodate the copper wire at the stator end when the substrate 1 is placed over the stator, thus preparing for wire clamping. When clamping the wire, the position of the pusher tooth 2 is adjusted towards the movable column 17 to achieve the purpose of clamping the wire.

[0037] It should be noted that the XPIN welding clamping method in this embodiment is the same as the clamping method in the Chinese invention patent with application number 202510028608.3 and invention title "Clamping and Shaping Equipment and Process for XPIN Stator". This embodiment is an improvement of this invention. Based on this invention, this embodiment can be adjusted to suit stators of different sizes and layers, and can also realize automated production at the same time, which can greatly improve production efficiency, has strong applicability, and reduce production costs.

[0038] Furthermore, by Figures 1 to 5As shown, in order to be compatible with stators of different sizes and layers, the inner support fixing cylinder 12 is provided with a movable column 17 that can move up and down. The inner support plate 14, inner support plate 25 and inner support plate 3 are all fixedly connected to a cam follower 28 on the side near the movable column 17. The outer side of the movable column 17 is fixedly connected to a slider 19 corresponding to the cam follower 28. Each slider 19 is provided with a sliding groove 20. Each cam follower 28 is slidably connected to the corresponding sliding groove 20. The movable column 17 moves up and down to form a structure in which the cam follower 28 moves radially along the base plate 1.

[0039] A cylinder 21 is fixedly connected to the lower side of the inner support base plate 13. The output end of the cylinder 21 passes through the inner support base plate 13 and is fixedly connected to the bottom of the movable column 17.

[0040] In use, the movable shaft of the cylinder 21 drives the movable column 17 to move up and down, and then, under the action of the sliding groove 20 opened on the slider 19, it drives the cam follower 18 to move radially along the base plate 1, and then drives the inner support plate 14, the inner support plate 25 and the inner support plate 3 16 to push outward to adapt to stators of different sizes and layers.

[0041] Furthermore, it should be understood that in this embodiment, the fitting dimensions of the inner support plate 14, the inner support plate 25 and the inner support plate 3 16 are determined by the depth of the sliding groove 20 opened radially along the substrate 1. In different usage scenarios, the inclination and length of the sliding groove 20 can be adapted.

[0042] In use of this invention, before clamping, adjust the inner support plate 14, inner support plate 25, and inner support plate 36, moving them away from or towards the movable column 17. After adjusting the positions of the inner support plate 14, inner support plate 25, and inner support plate 36, adjust the positions of the corresponding push teeth 2 on the three inner support plates. Then, clamping and welding operations can be performed. First, place the stator on the lifting and rotating mechanism. According to the condition of the copper wire at the end of the stator, adjust the inner support plate 14, inner support plate 25, and inner support plate 36 and the corresponding push teeth 2 in the adjustable inner support assembly to the appropriate positions. Then, push the stator onto the substrate. At the bottom of 1, continue to rotate the swing arm 9 so that the turntable 3 drives the push tooth 2 to continue moving towards the movable column 17. This allows the push tooth 2 to cooperate with the corresponding inner support plate 14, inner support plate 25 and inner support plate 36 to clamp the copper wires at the end of the stator. At this time, welding can be performed. During the welding process, dust can be absorbed through the pipe 10 and the dust suction hood 5. After the welding is completed, the stator is lifted and rotated by the lifting and rotating mechanism, then rotated at a certain angle, and then pushed to the bottom of the fixture to achieve the purpose of the next round of copper wire clamping and welding, until all the copper wires at the end of the stator are welded.

[0043] This utility model has a novel structure, ingenious design, and simple and convenient operation. This design effectively facilitates the clamping of copper wires and the adsorption of dust during the welding process. It also facilitates clamping of copper wires from both sides and can be used with stators of different sizes and layers.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic clamping fixture for XPIN soldering, comprising a substrate, characterized in that: The substrate has multiple push teeth that can move radially along the substrate. A turntable that can drive the push teeth to move is rotatably connected to the upper side of the substrate. A cover plate is fixedly connected to the upper side of the substrate. A dust suction hood for suctioning dust from the stator end is provided on the upper side of the cover plate. An inner support assembly is provided inside the substrate. The inner support assembly and the corresponding push teeth cooperate with each other to form a copper wire clamping structure.

2. The automatic clamping fixture for XPIN welding according to claim 1, characterized in that: The turntable has multiple arc-shaped grooves arranged in a circular array, and the base plate has multiple sliding grooves arranged radially. Each push tooth is slidably connected to the corresponding sliding groove. A cam follower is fixedly connected to the upper side of each push tooth, and the upper side of each cam follower is slidably connected inside the corresponding arc-shaped groove.

3. The automatic clamping fixture for XPIN welding according to claim 1, characterized in that: A swing arm for driving the turntable to rotate is fixedly connected to the upper side of the turntable.

4. The automatic clamping fixture for XPIN welding according to claim 1, characterized in that: The dust cover has pipes on both the left and right sides for connecting to a vacuum cleaner.

5. The automatic clamping fixture for XPIN welding according to claim 1, characterized in that: The inner support assembly includes an inner support fixing plate, an inner support fixing cylinder, and an inner support bottom plate. The inner support fixing plate is concentrically fixed to the middle of the cover plate. The inner support fixing cylinder is fixedly connected to the lower side of the inner support fixing plate. The inner support bottom plate is fixedly connected to the lower side of the inner support fixing cylinder. The middle of the inner support fixing cylinder is provided with an inner support part for clamping copper wires in cooperation with push teeth.

6. The automatic clamping fixture for XPIN welding according to claim 5, characterized in that: The inner support includes inner support plate one, inner support plate two, and inner support plate three with different outer diameters. The inner support plate one, inner support plate two, and inner support plate three can all move radially along the substrate.

7. The automatic clamping fixture for XPIN welding according to claim 6, characterized in that: The inner support fixing cylinder has a movable column that can move up and down inside. The inner support plate 1, inner support plate 2 and inner support plate 3 are all fixedly connected to the side of the movable column. The movable column is fixedly connected to a slider that corresponds to the cam follower 2 one by one. Each slider has a sliding groove. Each cam follower 2 is slidably connected to the corresponding sliding groove. The movable column moves up and down to form a structure in which the cam follower 2 moves radially along the base plate.

8. The automatic clamping fixture for XPIN welding according to claim 7, characterized in that: A cylinder is fixedly connected to the lower side of the inner support base plate, and the output end of the cylinder passes through the inner support base plate and is fixedly connected to the bottom of the movable column.

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