Motor stator core welding jig

Abstract

The utility model discloses a motor stator iron core welding jig which comprises a machine body, a frame body and a limiting assembly, a lead screw is installed in the machine body, the surface of the lead screw is in threaded connection with a ball sliding seat, a connecting plate is installed at the bottom of the ball sliding seat, a hydraulic rod is installed on the connecting plate, the frame body is installed at the bottom of the hydraulic rod, and the limiting assembly is installed on the frame body. Electric telescopic rods are installed on the two sides of the interior of the frame body, the output ends of the electric telescopic rods are connected with clamps in a fastened mode, and a mechanical arm is installed on one side of the machine body. The clamps are matched with the conveying belt to carry out feeding and discharging conveying on unwelded stator iron cores and welded stator iron cores, the stator iron core machining efficiency is improved, and the machining efficiency is improved. And the electric push rod is started to be matched with the fixing plate to fix the stator iron core on the rotating disc, so that movement during welding is avoided, the device is suitable for stator iron cores with different inner diameters, the practicability is improved, the welding error rate of the stator iron core is reduced, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stators, in particular to a welding fixture for a motor stator core. Background Art

[0002] The stator core is an important part of the motor magnetic circuit. It, together with the rotor core and the air gap between the stator and the rotor, forms the complete magnetic circuit of the motor. In an asynchronous motor, the magnetic flux in the stator core is alternating, thus generating core loss. The welded motor stator core can reduce the looseness and vibration between the iron sheets, and reduce mechanical noise and electromagnetic noise.

[0003] After searching, Chinese utility model patent CN116117398A discloses a motor stator welding device, which includes a workbench, a placement structure, a fixing structure, a welding structure, an air suction structure, a driving structure and a limiting structure. The driving structure drives the placement structure to move, which is convenient for rapid replacement of the motor stator and improves work efficiency. The placement structure is also convenient for taking the motor stator and improves flexibility. The placement structure rotates while the fixing structure automatically fixes the motor stator, which avoids the displacement of the motor stator during welding, thereby improving welding quality.

[0004] The existing device will have the following problems when in use: when welding the stator core, it is inconvenient to load and unload the unwelded stator core and the welded stator core, resulting in low welding efficiency, and the stator core needs to be limited during welding to avoid welding failure caused by displacement of the stator core, but the positioning structure cannot be applied to different stator cores, reducing practicality. Utility Model Content

[0005] The utility model aims to provide a welding jig for a motor stator core to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor stator core welding jig, comprising a machine body, a frame, and a limit assembly, a screw rod is installed inside the machine body, a ball slide is threadedly connected to the surface of the screw rod, a connecting plate is installed at the bottom of the ball slide, a hydraulic rod is installed on the connecting plate, a frame is installed at the bottom of the hydraulic rod, electric telescopic rods are installed on both sides of the frame, the output end of the electric telescopic rod is fastened with a clamp, a mechanical arm is installed on one side of the machine body, a welding head is arranged on the mechanical arm, a base is connected to the bottom of the machine body, a control motor is installed inside the base, a turntable is fixedly connected to the output end of the control motor, and a limit assembly is arranged on the turntable.

[0007] By adopting the above technical solution, the screw rod cooperates with the ball slide to drive the bottom clamp to move left and right, so as to transport the stator core, the hydraulic rod is started to drive the bottom clamp to descend, the electric telescopic rod is started to cooperate with the clamp to clamp the stator core, the stator core is loaded and unloaded, and the convenience of loading and unloading is improved, the control motor is started to drive the turntable to rotate, and the mechanical arm is started to cooperate with the welding head so that the outer surface of the stator core can be welded.

[0008] Preferably, the limiting assembly includes a connecting rod, an electric push rod, and a fixed plate. The turntable is connected to the connecting rod. Electric push rods are provided at both ends of the connecting rod. One end of the electric push rod is fixedly connected to the fixed plate.

[0009] By adopting the above technical solution, the stator core is transported to the turntable, and the stator core is fixed on the turntable by starting the electric push rod in conjunction with the fixing plate, thereby avoiding movement during welding and being adaptable to stator cores with different inner diameters, which is more practical.

[0010] Preferably, a conveyor belt is provided on the base.

[0011] By adopting the above technical solution, the stator core is placed on a conveyor belt for transportation, and after welding is completed, the stator core is put back on the conveyor belt by a clamp, thereby improving the efficiency of stator core processing.

[0012] Preferably, a rotating motor is installed in the body, the output end of the rotating motor is tightly connected to a driving wheel, the driving wheel is connected to a driven wheel via a transmission belt, and one side of the driven wheel is connected to a screw rod.

[0013] By adopting the above technical solution, the rotating motor is started to drive the driving wheel to rotate, the driving wheel cooperates with the transmission belt to drive the driven wheel to rotate, and the driven wheel thereby drives the screw rod to rotate.

[0014] Preferably, an anti-skid pad is provided on the inner side of the clamp, and the material of the anti-skid pad is set to be rubber.

[0015] By adopting the above technical solution, the friction of the clamp on the stator core is reduced, and the stator core is prevented from slipping.

[0016] Preferably, a guide rod is provided on the frame, and the guide rod passes through the connecting plate.

[0017] By adopting the above technical solution, the stability of the clamp when it descends is increased.

[0018] Preferably, the two sets of clamps and the two sets of fixing plates are both configured as arc-shaped structures.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The unwelded stator core and the welded stator core are loaded and unloaded by the fixture and the conveyor belt, which improves the efficiency of stator core processing, reduces the use of manpower, and reduces cost investment.

[0021] 2. The stator core is fixed on the turntable by starting the electric push rod and cooperating with the fixing plate to avoid movement during welding. It is suitable for stator cores with different inner diameters, increases practicality, reduces the error rate of stator core welding, and improves the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] Figure 3 This is a schematic diagram of the fixture structure of the utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0026] In the figure: 1. machine body; 2. rotating motor; 3. transmission belt; 4. screw rod; 5. mechanical arm; 6. welding head; 7. base; 8. limit assembly; 9. turntable; 10. control motor; 11. conveyor belt; 12. ball slide; 13. hydraulic rod; 14. guide rod; 15. frame; 16. electric telescopic rod; 17. clamp; 18. connecting plate; 19. connecting rod; 20. electric push rod; 21. fixing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides a technical solution: a motor stator core welding fixture, including a body 1, a frame 15, and a limit assembly 8, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A screw rod 4 is installed inside the body 1, and a ball slide 12 is threadedly connected to the surface of the screw rod 4. A connecting plate 18 is installed at the bottom of the ball slide 12. A hydraulic rod 13 is installed on the connecting plate 18. A frame 15 is installed at the bottom of the hydraulic rod 13. Electric telescopic rods 16 are installed on both sides of the frame 15. The output end of the electric telescopic rod 16 is fastened with a clamp 17. A rotating motor 2 is installed in the body 1. The output end of the rotating motor 2 is fastened with a driving wheel. The driving wheel is connected to a driven wheel through a transmission belt 3. One side of the driven wheel is connected with a screw rod 4. The rotating motor 2 is started to drive the driving wheel to rotate. The driving wheel cooperates with the transmission belt 3 to drive the driven wheel to rotate, and the driven wheel thereby drives the screw rod 4 The screw rod 4 cooperates with the ball slide 12 to drive the bottom clamp 17 to move left and right, so as to transport the stator core. The inner side of the clamp 17 is provided with an anti-skid pad, and the material of the anti-skid pad is set to rubber. The hydraulic rod 13 is started to drive the bottom clamp 17 to descend, and the electric telescopic rod 16 is started to cooperate with the clamp 17 to clamp the stator core, and the stator core is transported to the turntable 9. The anti-skid pad reduces the risk of the stator core falling. The frame 15 is provided with a guide rod 14, and the guide rod 14 passes through the connecting plate 18. A mechanical arm 5 is installed on one side of the body 1, and a welding head 6 is provided on the mechanical arm 5. A conveyor belt 11 is provided on the base 7. The stator core is placed on the conveyor belt 11 for transportation, so as to improve the processing efficiency.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom of the body 1 is connected with a base 7, and a control motor 10 is installed inside the base 7. The output end of the control motor 10 is fixedly connected with a turntable 9. A limit assembly 8 is arranged on the turntable 9. The limit assembly 8 includes a connecting rod 19, an electric push rod 20, and a fixed plate 21. The turntable 9 is connected with a connecting rod 19. Both ends of the connecting rod 19 are provided with electric push rods 20. One end of the electric push rod 20 is fixedly connected with a fixed plate 21. The two sets of clamps 17 and the two sets of fixed plates 21 are both arranged in an arc structure. The electric push rod 20 is started to cooperate with the fixed plate 21 to fix the stator core on the turntable 9, so as to avoid movement during welding. The control motor 10 is started to drive the turntable 9 to rotate, and the mechanical arm 5 is started to cooperate with the welding head 6 so that the outer surface of the stator core can be welded, thereby reducing the error rate of stator core welding and improving the quality of welding.

[0030] Working principle: the stator core is placed on the conveyor belt 11 for transportation, the rotating motor 2 is started to drive the driving wheel to rotate, the driving wheel cooperates with the transmission belt 3 to drive the driven wheel to rotate, and the driven wheel thereby drives the screw rod 4 to rotate, the screw rod 4 cooperates with the ball slide 12 to drive the bottom clamp 17 to move left and right, so as to transport the stator core, start the hydraulic rod 13 to drive the bottom clamp 17 to descend, start the electric telescopic rod 16 to cooperate with the clamp 17 to clamp the stator core, and transport the stator core to the turntable 9, and fix the stator core on the turntable 9 by starting the electric push rod 20 to cooperate with the fixing plate 21 to avoid movement during welding, start the control motor 10 to drive the turntable 9 to rotate, start the mechanical arm 5 to cooperate with the welding head 6 so that the outer surface of the stator core can be welded, and after welding, the stator core is put back on the conveyor belt 11 through the clamp 17, thereby improving the efficiency of stator core processing.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding jig for a motor stator core, comprising a body (1), a frame (15), and a limit assembly (8), characterized in that: A screw rod (4) is installed inside the machine body (1), and a ball bearing slide (12) is threadedly connected to the surface of the screw rod (4). A connecting plate (18) is installed at the bottom of the ball bearing slide (12). A hydraulic rod (13) is installed on the connecting plate (18). A frame (15) is installed at the bottom of the hydraulic rod (13). Electric telescopic rods (16) are installed on both sides of the frame (15). The output end of the electric telescopic rod (16) is fastened with a clamp (17). A mechanical arm (5) is installed on one side of the machine body (1), and a welding head (6) is provided on the mechanical arm (5). The bottom of the machine body (1) is connected to a base (7). A control motor (10) is installed inside the base (7). The output end of the control motor (10) is fixedly connected to a turntable (9), and a limit position component (8) is provided on the turntable (9).

2. The motor stator core welding jig according to claim 1, characterized in that: The limit assembly (8) comprises a connecting rod (19), an electric push rod (20), and a fixed plate (21); the turntable (9) is connected to the connecting rod (19); both ends of the connecting rod (19) are provided with electric push rods (20); and one end of the electric push rod (20) is fixedly connected to the fixed plate (21).

3. The motor stator core welding jig according to claim 1, characterized in that: A conveyor belt (11) is arranged on the base (7).

4. The motor stator core welding jig according to claim 1, characterized in that: A rotating motor (2) is installed in the machine body (1); the output end of the rotating motor (2) is tightly connected to a driving wheel; the driving wheel is connected to a driven wheel via a transmission belt (3); one side of the driven wheel is connected to a screw rod (4).

5. The motor stator core welding jig according to claim 1, characterized in that: An anti-skid pad is arranged on the inner side of the clamp (17), and the material of the anti-skid pad is set to be rubber.

6. The motor stator core welding jig according to claim 1, characterized in that: A guide rod (14) is provided on the frame (15), and the guide rod (14) passes through the connecting plate (18).

7. The motor stator core welding jig according to claim 1, characterized in that: The two groups of clamps (17) and the two groups of fixing plates (21) are both configured as arc-shaped structures.

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