Stator lamination welding tool

By using a screw-type clamping and a rotary positioning mechanism, the problems of stator offset and welding error in the stator lamination welding process are solved, achieving stable clamping and precise welding of stator laminations, and improving welding quality and accuracy.

CN223889310UActive Publication Date: 2026-02-10WUHAN RUIFENGYING IND & TRADE CO LTD
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Patent Information

Application Number
CN202520122168.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-10
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing stator lamination welding fixtures are prone to displacement of the stator and laminations during the welding process, making it difficult to control welding errors and welding orientation, thus affecting welding quality and accuracy.

Method used

A screw-type clamping mechanism consisting of a fixed base, horizontal slide rail, horizontal slide bar, L-shaped slide plate, chuck, L-shaped fixing plate and screw is combined with a rotary positioning and welding mechanism consisting of a stepper motor, turntable and robotic arm to achieve stable clamping and precise positioning welding of the stator.

Benefits of technology

It effectively prevents stator misalignment during the welding process, improves welding quality and precision, and ensures accurate and high-precision positioning of the welding position.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223889310U_ABST
    Figure CN223889310U_ABST
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Abstract

The utility model discloses a stator lamination welding tool which comprises a fixed bottom plate, the upper end of the fixed bottom plate is fixedly connected with a stepping motor, the upper end of the stepping motor is provided with a rotating disc, and the output end of the stepping motor is fixedly connected to the lower end of the rotating disc; the fixed seat is fixedly connected to the upper end of the rotary disc and located in the center of the rotary disc, horizontal sliding grooves are formed in the upper end of the fixed seat and symmetrically distributed in the upper end of the fixed seat, the horizontal sliding grooves are slidably connected with an L-shaped sliding plate through horizontal sliding rods, and a chuck is fixedly connected to the front end of the L-shaped sliding plate; l-shaped fixing plates are fixedly connected to the upper end of the fixing seat, the L-shaped fixing plates are symmetrically distributed at the left end and the right end of the fixing seat, and the L-shaped fixing plates are in threaded connection with screws; by means of the screwing type clamping mechanism, the stator can be stably clamped and fixed to the fixing base, errors caused by deviation in the welding process can be prevented, and the welding quality is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of stator lamination welding technology, and in particular to a stator lamination welding fixture. Background Technology

[0002] Existing stator lamination welding fixtures are prone to displacement of the stator and laminations during welding, leading to welding errors and difficulty in controlling the welding orientation, resulting in low welding precision. A Chinese patent discloses a "stator lamination laser welding device" (application number CN202320800865.0), which can apply different pressures to the stator to perform welding at different heights and angles, improving the welding quality. However, this fixture is prone to stator and lamination misalignment, and the welding orientation is difficult to control, affecting the welding quality. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a stator lamination welding fixture. The fixture consists of a fixed base, a horizontal slide groove, a horizontal slide rod, an L-shaped slide plate, a chuck, an L-shaped fixing plate, and a screw, which forms a tightening clamping mechanism. This mechanism can stably clamp and fix the stator on the fixed base, preventing welding errors caused by displacement during the stator welding process and ensuring welding quality. The fixture also consists of a stepper motor, a turntable, and a robotic arm, which forms a rotary positioning welding mechanism. The turntable can precisely position the welding position through quantitative rotation, which is beneficial for accurate welding and improves welding accuracy.

[0004] This utility model also provides a stator lamination welding fixture as described above, comprising: a fixed base plate, a stepper motor fixedly connected to the upper end of the fixed base plate, a turntable provided at the upper end of the stepper motor, and the output end of the stepper motor fixedly connected to the lower end of the turntable; a fixed seat, the fixed seat fixedly connected to the upper end of the turntable, the fixed seat located at the center of the turntable, a horizontal slide groove provided at the upper end of the fixed seat, the horizontal slide groove being symmetrically distributed at the upper end of the fixed seat, an L-shaped slide plate being slidably connected to the horizontal slide groove via a horizontal slide rod, a clamp being fixedly connected to the front end of the L-shaped slide plate, an L-shaped fixing plate being fixedly connected to the upper end of the fixed seat, the L-shaped fixing plate being symmetrically distributed at the left and right ends of the fixed seat, and a screw being threadedly connected to the L-shaped fixing plate; and a control console, the control console being fixedly connected to the upper end of the fixed base plate, a robotic arm fixedly connected to the upper end of the control console, a gripper and a laser welding head being fixedly connected to the robotic arm, the laser welding head being located in front of the gripper.

[0005] According to the stator lamination welding fixture of this utility model, the fixed base plate is provided with mounting holes to facilitate the installation and fixation of the welding fixture. The mounting holes are located at the four corners of the fixed base plate, which is beneficial to the stable installation of the welding fixture.

[0006] According to the stator lamination welding fixture of this utility model, a limiting plate is fixedly connected to the upper end of the fixed base to facilitate the limiting installation of the screw and prevent the screw from deviating. The limiting plate is located between the L-shaped sliding plate and the L-shaped fixed plate, and the limiting plate is threadedly connected to the screw, which facilitates the stable installation of the screw and is beneficial to the stable use of the screw.

[0007] According to the stator lamination welding fixture of this utility model, the screws are symmetrically distributed at both ends of the L-shaped fixing plate, and the front end of the screws abuts against the rear end of the L-shaped sliding plate. This facilitates the stable clamping of the L-shaped sliding plate and ensures the clamping effect.

[0008] According to the stator lamination welding fixture of this utility model, a pressure block is provided at the front end of the screw to facilitate the clamping of the L-shaped slide plate. An adjustment handle is provided at the rear end of the screw to facilitate the adjustment of the screw.

[0009] According to the stator lamination welding fixture of this utility model, the front end of the chuck is provided with an arc-shaped clamping groove, which facilitates stable clamping of the stator.

[0010] According to the stator lamination welding fixture of this utility model, a stop block is fixedly connected to the upper end of the fixed base, and the stop block is located in front of the chuck. This facilitates the limiting of the chuck position.

[0011] According to the stator lamination welding fixture of this utility model, the control console is fixedly connected to the side end of the stepper motor, and the control console is connected to the stepper motor. This facilitates the normal operation of the fixture.

[0012] Beneficial effects:

[0013] 1. Compared with the prior art, this stator lamination welding fixture, through a screw-type clamping mechanism composed of a fixed seat, a horizontal slide groove, a horizontal slide rod, an L-shaped slide plate, a chuck, an L-shaped fixing plate and a screw, can stably clamp and fix the stator on the fixed seat, which can prevent welding errors caused by displacement during stator welding and ensure welding quality.

[0014] 2. Compared with the existing technology, this stator lamination welding fixture consists of a stepper motor, a turntable and a robotic arm forming a rotary positioning welding mechanism. The welding position can be accurately positioned by the quantitative rotation of the turntable, which is conducive to precise welding and improves welding accuracy. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a stator lamination welding fixture according to the present invention;

[0017] Figure 2This is a partially enlarged structural schematic diagram of a stator lamination welding fixture according to the present invention;

[0018] Figure 3 This is a longitudinal three-dimensional cross-sectional view of a stator lamination welding fixture according to the present invention.

[0019] Figure 4 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a stator lamination welding fixture according to the present invention;

[0020] Figure 5 This is a top view schematic diagram of a stator lamination welding fixture according to the present invention.

[0021] Legend:

[0022] 1. Fixed base plate; 2. Stepper motor; 3. Turntable; 4. Horizontal slide rail; 5. Chuck; 6. Arc-shaped clamping groove; 7. Stop block; 8. Pressure block; 9. Limiting plate; 10. Robotic arm; 11. L-shaped fixing plate; 12. Screw; 13. Mounting hole; 14. Adjusting handle; 15. Laser welding head; 16. Horizontal slide bar; 17. L-shaped sliding plate; 18. Fixed base; 19. Control console; 20. Gripper. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figures 1-5 This utility model provides a stator lamination welding fixture, which includes: a fixed base plate 1, the fixed base plate 1 having mounting holes 13 for mounting and fixing the fixture, the mounting holes 13 being located at the four corners of the fixed base plate 1, a stepper motor 2 being fixedly connected to the upper end of the fixed base plate 1, driving a turntable 3 to rotate quantitatively to switch the laser welding position, the turntable 3 being provided at the upper end of the stepper motor 2, fixing a fixed seat 18, driving the fixed seat 18 to rotate quantitatively, and the output end of the stepper motor 2 being fixedly connected to the lower end of the turntable 3;

[0025] A fixed base 18 is fixedly connected to the upper end of the turntable 3, and is located at the center of the turntable 3. A horizontal slide groove 4 is provided at the upper end of the fixed base 18, which, via a horizontal slide rod 16, limits the installation of the L-shaped slide plate 17. The horizontal slide grooves 4 are symmetrically distributed at the upper end of the fixed base 18, and the L-shaped slide plate 17 is slidably connected to the horizontal slide grooves 4 via the horizontal slide rod 16. The L-shaped slide plate 17 slides on the fixed base 18, fixing the chuck 5. The chuck 5 is fixedly connected to the front end of the L-shaped slide plate 17, and the front end of the chuck 5 is provided with an arc-shaped clamping groove 6 for stable clamping of the stator. A stop block 7 is fixedly connected to the upper end of the fixed base 18 to limit the movement of the chuck 5. The stop block 7 is located in front of the chuck 5. The upper end of the fixed base 18 is fixed... An L-shaped fixing plate 11 is connected to a mounting screw 12. The L-shaped fixing plate 11 is symmetrically distributed at the left and right ends of the fixing base 18. The L-shaped fixing plate 11 is threadedly connected to the screw 12, which is tightened to press the L-shaped sliding plate 17. The screw 12 is symmetrically distributed at the left and right ends of the L-shaped fixing plate 11. The front end of the screw 12 abuts against the rear end of the L-shaped sliding plate 17. The front end of the screw 12 is provided with a pressure block 8 to press the L-shaped sliding plate 17. The rear end of the screw 12 is provided with an adjustment handle 14 to adjust the screw 12. The upper end of the fixing base 18 is fixedly connected to a limiting plate 9 to limit the installation of the screw 12. The limiting plate 9 is located between the L-shaped sliding plate 17 and the L-shaped fixing plate 11. The limiting plate 9 is threadedly connected to the screw 12.

[0026] The control console 19 is fixedly connected to the upper end of the fixed base plate 1. The control console 19 is fixedly connected to the side end of the stepper motor 2. The control console 19 is connected to the stepper motor 2. The upper end of the control console 19 is fixedly connected to the robotic arm 10, which is used to transport the stacked pieces to the designated position for welding. The robotic arm 10 is fixedly connected to the gripper 20 and the laser welding head 15. The gripper 20 will grab the stacked pieces, transport the stacked pieces to the welding position, and clamp and fix the stacked pieces to cooperate with the laser welding head 15 to weld the connection between the stacked pieces and the stator. The laser welding head 15 will emit laser to perform welding. The laser welding head 15 is located in front of the gripper 20.

[0027] Working principle: Stator lamination welding is performed using a stator lamination welding fixture. The stator is placed on the fixed base 18, and the screw 12 is tightened to press the L-shaped slide plate 17, so that the arc-shaped clamping groove 6 of the chuck 5 stably clamps and fixes the stator on the fixed base 18. The robotic arm 10 will transport the lamination to the welding position of the stator, and the gripper 20 will clamp and fix the lamination to cooperate with the laser welding head 15 to weld the connection between the lamination and the stator. The stepper motor 2 will drive the turntable 3 to rotate quantitatively to switch the laser welding position.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stator lamination welding fixture, characterized in that, include: A fixed base plate (1) is fixedly connected to the upper end of the fixed base plate (1), and a turntable (3) is provided on the upper end of the stepper motor (2). The output end of the stepper motor (2) is fixedly connected to the lower end of the turntable (3). A fixed seat (18) is fixedly connected to the upper end of the turntable (3). The fixed seat (18) is located at the center of the turntable (3). A horizontal slide groove (4) is provided at the upper end of the fixed seat (18). The horizontal slide groove (4) is symmetrically distributed at the upper end of the fixed seat (18). An L-shaped slide plate (17) is slidably connected to the horizontal slide rod (16). A clamp (5) is fixedly connected to the front end of the L-shaped slide plate (17). An L-shaped fixing plate (11) is fixedly connected to the upper end of the fixed seat (18). The L-shaped fixing plate (11) is symmetrically distributed at the left and right ends of the fixed seat (18). A screw (12) is threadedly connected to the L-shaped fixing plate (11). The console (19) is fixedly connected to the upper end of the fixed base plate (1). The upper end of the console (19) is fixedly connected to a robotic arm (10). The robotic arm (10) is fixedly connected to a gripper (20) and a laser welding head (15). The laser welding head (15) is located in front of the gripper (20).

2. The stator lamination welding fixture according to claim 1, characterized in that, The fixed base plate (1) is provided with mounting holes (13), which are located at the four corners of the fixed base plate (1).

3. The stator lamination welding fixture according to claim 1, characterized in that, The upper end of the fixed seat (18) is fixedly connected to a limiting plate (9), which is located between the L-shaped sliding plate (17) and the L-shaped fixed plate (11). The limiting plate (9) is threadedly connected to the screw (12).

4. The stator lamination welding fixture according to claim 1, characterized in that, The screws (12) are symmetrically distributed at the left and right ends of the L-shaped fixing plate (11), and the front end of the screws (12) abuts against the rear end of the L-shaped sliding plate (17).

5. The stator lamination welding fixture according to claim 1, characterized in that, The front end of the screw (12) is provided with a pressure block (8), and the rear end of the screw (12) is provided with an adjustment handle (14).

6. The stator lamination welding fixture according to claim 1, characterized in that, The front end of the chuck (5) is provided with an arc-shaped clamping groove (6).

7. The stator lamination welding fixture according to claim 1, characterized in that, A stop block (7) is fixedly connected to the upper end of the fixed base (18), and the stop block (7) is located in front of the clamp (5).

8. The stator lamination welding fixture according to claim 1, characterized in that, The control console (19) is fixedly connected to the side end of the stepper motor (2), and the control console (19) is connected to the stepper motor (2).

Citation Information

Patent Citations

  • Laser welding device for stator laminations

    CN219818396U