Motor stator core welding jig

Abstract

The utility model discloses a motor stator core welding jig, including base, be equipped with first hydraulic cylinder through upper support on the base, and first hydraulic cylinder is equipped with the upper pressing plate through first bearing seat and bearing rotation, and is equipped with the object table through the stand and second bearing seat rotation on the base, still be equipped with a plurality of limit gyro wheel through the vertical shaft rotation on the base, and the second bearing seat is drivenly connected with motor through gear set outside, and the upper support side wall is equipped with the lift slide block through the screw rod, the utility model discloses through the longitudinal stacking of a plurality of iron core piece on the object table, and utilize a plurality of limit gyro wheel to limit the outer wall of a plurality of iron core piece, then through the first hydraulic cylinder drive upper pressing plate and press the upper portion of iron core piece and carry out the pressure holding positioning, subsequently through the second hydraulic cylinder drive electric welding head and remove to a plurality of iron core piece one side and carry out the welding, and simultaneously through motor and gear set drive object table horizontal rotation, thereby being convenient for to the gap between two iron core pieces of up and down and carries out the welding processing.

Description

Technical Field

[0001] This utility model relates to the technical field of iron core welding equipment, specifically a welding fixture for motor stator iron cores. Background Technology

[0002] Commonly used transformer cores are generally made of silicon steel sheets. Silicon steel is a type of steel containing silicon (silicon is also called silicide), with a silicon content ranging from 0.8% to 4.8%. Silicon steel is used for transformer cores because it is a magnetic material with strong magnetic permeability. In a current-carrying coil, it can generate a large magnetic induction intensity, thus allowing for a smaller transformer size. The stator core is an important component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it forms the complete magnetic circuit of the motor. During core production, multiple iron laminations are longitudinally stacked and welded. The welded stator core reduces looseness and vibration between the laminations, thus reducing mechanical and electromagnetic noise.

[0003] A prior art application (application number 202421506349.8) describes a welding fixture for motor stator cores, comprising a body, a frame, and a limiting component. This fixture, using a clamp and conveyor belt, transports unwelded and welded stator cores for loading and unloading, improving processing efficiency and reducing manual labor. An electric push rod, in conjunction with a fixing plate, secures the stator core to a turntable, preventing movement during welding. It is suitable for stator cores of different inner diameters, increasing practicality, reducing welding error rates, and improving welding quality. However, it cannot longitudinally press and fix multiple stator cores, resulting in inconsistent vertical spacing and affecting welding quality. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture for motor stator cores to solve the problem in the prior art that multiple iron cores cannot be longitudinally pressed and fixed, resulting in inconsistent vertical spacing between multiple iron cores, which affects the welding quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for a motor stator core, comprising a base, a first hydraulic cylinder mounted on the upper side of the base via an upper bracket, an upper pressure plate rotatably mounted on the lower end of the first hydraulic cylinder via a first bearing seat and a bearing, a platform rotatably mounted on the upper middle part of the base via a column and a second bearing seat, a plurality of limiting rollers rotatably mounted on the base outside the platform via a vertical shaft, a motor being connected to the outer side of the second bearing seat via a gear set, a lifting slider mounted on the side wall of the upper bracket via a lead screw, and an electric welding head mounted on one side of the lifting slider via a second hydraulic cylinder.

[0006] Furthermore, the multiple limiting rollers are arranged in a circular array outside the stage, and the inner diameter of the limiting ring formed by the multiple limiting rollers is larger than the outer diameter of the stage.

[0007] Furthermore, the welding head is electrically connected to the welding machine via a wire, and the welding machine is equipped with multiple control buttons on its upper side.

[0008] Furthermore, the inner wall of the upper support is provided with a limiting groove and a guide rod, and the lifting slider is slidably arranged with the limiting groove and the guide rod on both sides.

[0009] Furthermore, the gear set is a reduction gear, and the motor is fixedly mounted on the base via a frame.

[0010] Furthermore, the lower surface of the upper pressure plate is arranged parallel to the upper surface of the platform, and protective pads are provided on one side of both the upper pressure plate and the platform.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model involves stacking multiple iron chips longitudinally on a platform and using multiple limiting rollers to limit the outer walls of the iron chips. Then, a first hydraulic cylinder drives an upper pressure plate to press and position the iron chips, making it easier to ensure that the iron chips are spaced unevenly. Subsequently, a second hydraulic cylinder drives a welding head to move to one side of the iron chips for welding. At the same time, a motor and gear set drive the platform to rotate horizontally, which facilitates circumferential welding at the gap between the upper and lower iron chips. Moreover, the welding precision is high and the operation is convenient and quick.

[0013] 2. In this utility model, the upper support side wall is provided with a lifting slider via a lead screw, and a welding head is provided on one side of the lifting slider via a second hydraulic cylinder. The welding head is electrically connected to the welding machine via a wire, and the welding machine is provided with multiple control buttons on the upper side, so that the lifting slider can be adjusted by driving the lead screw to lift and adjust the height of the welding head, thereby meeting the requirements of ring welding of iron chips of different heights.

[0014] 3. In this utility model, a first hydraulic cylinder is provided on the upper side of the base via an upper bracket. The lower end of the first hydraulic cylinder is provided with an upper pressure plate via a first bearing seat and a bearing. This allows the upper pressure plate to be driven by the first hydraulic cylinder to press and position the iron chip on the upper part. At the same time, it increases the friction between the iron chips and prevents some iron chips from not rotating synchronously with the stage. The lower surface of the upper pressure plate is set parallel to the upper surface of the stage, and protective pads are provided on one side of both the upper pressure plate and the stage to improve the stability of the iron chip fixed on the upper pressure plate and the stage. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a first-view overall structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0018] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third-view perspective.

[0019] In the diagram: 1. Base; 2. Upper support; 3. Platform; 4. Limiting roller; 5. First hydraulic cylinder; 6. First bearing seat; 7. Upper pressure plate; 8. Vertical shaft; 9. Lead screw; 10. Lifting slider; 11. Second hydraulic cylinder; 12. Welding machine; 13. Wire; 14. Limiting groove; 15. Guide rod; 16. Welding head; 17. Control button; 18. Second bearing seat; 19. Column; 20. Gear set; 21. Electric motor. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 , Figure 2 , Figure 3In this embodiment of the utility model, a welding fixture for a motor stator core includes a base 1. A first hydraulic cylinder 5 is mounted on the upper side of the base 1 via an upper bracket 2. An upper pressure plate 7 is rotatably mounted on the lower end of the first hydraulic cylinder 5 via a first bearing seat 6 and a bearing. A platform 3 is rotatably mounted on the upper middle part of the base 1 via a column 19 and a second bearing seat 18. The upper pressure plate 7 is pressed onto the upper part of the iron core by the first hydraulic cylinder 5 for pressing and positioning. This also increases the friction between the iron cores and prevents some iron cores from not rotating synchronously with the platform. A welding head 16 is mounted on the side wall of the upper bracket 2. The welding head 16 is moved to one side of multiple iron cores by the second hydraulic cylinder 11 for welding. At the same time, a motor 21 is connected to the outside of the second bearing seat 18 via a gear set 20. The gear set 20 is a reduction gear, and the motor 21 is fixedly mounted on the base 1 via a base. The platform 3 is rotated horizontally by the motor 21 and the gear set 20, which facilitates the circumferential welding of the gap between the upper and lower iron cores. Moreover, the welding accuracy is high and the operation is convenient and quick.

[0022] like Figure 1 and Figure 2 As shown, in order to limit the outer wall of multiple iron chips along the longitudinal direction, multiple limiting rollers 4 are also provided on the base 1 outside the stage 3 via a vertical shaft 8. The multiple limiting rollers 4 are arranged in a ring array outside the stage 3, and the inner diameter of the limiting ring formed by the multiple limiting rollers 4 is larger than the outer diameter of the stage 3. The multiple limiting rollers 4 are used to limit the outer wall of multiple iron chips along the longitudinal direction.

[0023] like Figure 1 and Figure 3 As shown, in order to meet the requirements of annular welding of iron chips of different heights, a lifting slider 10 is provided on the side wall of the upper bracket 2 via a lead screw 9. The welding head 16 is set on one side of the lifting slider 10 via a second hydraulic cylinder 11. The inner wall of the upper bracket 2 is provided with a limiting groove 14 and a guide rod 15, and the two sides of the lifting slider 10 are slidably arranged with the limiting groove 14 and the guide rod 15 for sliding guidance when the lifting slider 10 is adjusted. The welding head 16 is electrically connected to the welding machine 12 via a wire 13, and the welding machine 12 is provided with multiple control buttons 17 on the upper side, so that the lifting slider 10 can be adjusted by driving the lead screw 9 to adjust the height of the welding head 16, thereby meeting the requirements of annular welding of iron chips of different heights.

[0024] like Figure 2 and Figure 3 As shown, the lower surface of the upper pressure plate 7 is parallel to the upper surface of the stage 3, and both the upper pressure plate 7 and the stage 3 are provided with rubber protective pads on one side, which increases the anti-slip properties of the upper pressure plate 7 and the stage 3 and facilitates the improvement of the stability of the iron chip fixed on the upper pressure plate 7 and the stage 3.

[0025] The working principle and usage process of this utility model are as follows: When in use, connect the external power supply, stack multiple iron chips longitudinally on the stage 3, and use multiple limiting rollers 4 to limit the outer wall of the multiple iron chips longitudinally. Then, drive the upper pressure plate 7 to move down and press it on the upper part of the iron chips through the first hydraulic cylinder 5 to hold and position the multiple iron chips. Subsequently, drive the welding head 16 to move to one side of the multiple iron chips for welding through the second hydraulic cylinder 11. At the same time, drive the stage 3 to rotate horizontally through the motor 21 and gear set 20, so as to facilitate the ring welding treatment of the gap between the upper and lower iron chips. Moreover, the welding accuracy is high and the operation is convenient and quick.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A welding fixture for a motor stator core, comprising a base (1), characterized in that: The base (1) is equipped with a first hydraulic cylinder (5) via an upper bracket (2) on its upper side. The lower end of the first hydraulic cylinder (5) is equipped with an upper pressure plate (7) via a first bearing seat (6) and a bearing. The upper middle part of the base (1) is equipped with a platform (3) via a column (19) and a second bearing seat (18). On the base (1) outside the platform (3), multiple limiting rollers (4) are also rotatably provided via a vertical shaft (8). The outer side of the second bearing seat (18) is connected to a motor (21) via a gear set (20). The side wall of the upper bracket (2) is equipped with a lifting slider (10) via a lead screw (9). The lifting slider (10) is equipped with an electric welding head (16) via a second hydraulic cylinder (11) on one side.

2. The welding fixture for motor stator cores according to claim 1, characterized in that: The multiple limiting rollers (4) are arranged in a ring array outside the stage (3), and the inner diameter of the limiting ring formed by the multiple limiting rollers (4) is larger than the outer diameter of the stage (3).

3. The welding fixture for motor stator cores according to claim 1, characterized in that: The welding head (16) is electrically connected to the welding machine (12) via a wire (13), and the welding machine (12) is provided with multiple control buttons (17) on its upper side.

4. The motor stator core welding fixture according to claim 1, characterized in that: The upper support (2) has a limiting groove (14) and a guide rod (15) on its inner wall, and the lifting slider (10) is slidably arranged with the limiting groove (14) and the guide rod (15) on both sides.

5. The welding fixture for motor stator cores according to claim 1, characterized in that: The gear set (20) is a reduction gear, and the motor (21) is fixedly mounted on the base (1) via a frame.

6. The motor stator core welding fixture according to claim 2, characterized in that: The lower surface of the upper pressure plate (7) is parallel to the upper surface of the platform (3), and both the upper pressure plate (7) and the platform (3) are provided with protective pads on one side.

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