Polishing device for motor stator core

Abstract

The utility model discloses a polishing device for a motor stator core, and belongs to the technical field of motor stator core machining. In order to solve the problem that an existing product is complex in structure, according to the technical scheme, the polishing device comprises a polishing device base, a containing cylinder is arranged at the upper end of the polishing device base, the polishing device base and the containing cylinder are connected through a limiting mechanism, and a positioning mechanism is arranged in the containing cylinder. By arranging the positioning mechanism and the grinding mechanism, the stator core can be quickly placed and positioned, meanwhile, an inner ring and a wire slot of the stator core can be ground at the same time, the grinding efficiency of the device is improved to a great extent, and the grinding efficiency of the device is greatly improved by arranging the limiting mechanism and the connecting mechanism. And placing barrels of different sizes can be rapidly replaced, grinding pieces of different sizes can also be rapidly replaced, the device can grind stator iron cores of different sizes, and the practicability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of motor stator core processing technology, specifically a grinding device for motor stator cores. Background Technology

[0002] The stator core of an electric motor 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. In asynchronous motors, the magnetic flux in the stator core is alternating, which results in core losses, mainly including hysteresis losses and eddy current losses. The stator core needs to be polished by a polishing device during the production process.

[0003] Existing stator core grinding devices cannot simultaneously grind the inner ring and grooves of the stator core, nor can they quickly process the grinding debris, which greatly reduces the practicality of the device.

[0004] Therefore, those skilled in the art have provided a grinding device for motor stator cores to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a grinding device for motor stator cores. By setting a positioning mechanism and a grinding mechanism, the stator core can be quickly placed and positioned, and the inner ring and groove of the stator core can be ground simultaneously, greatly improving the grinding efficiency of the device. Furthermore, by setting a limiting mechanism and a connecting mechanism, different sized placement cylinders can be quickly replaced, and different sized grinding parts can also be quickly replaced, enabling the device to grind stator cores of different sizes, further improving the practicality of the device and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grinding device for a motor stator core includes a grinding device base. A placement cylinder is mounted on the upper end of the grinding device base, and the two are connected by a limiting mechanism. A positioning mechanism is provided inside the placement cylinder. The positioning mechanism includes a support ring fixedly connected inside the placement cylinder. Multiple drop grooves are formed on the support ring. A spring shaft is fixedly mounted on the lower end of the support ring. A base plate is connected to the movable part of the spring shaft. A positioning element is fixedly connected to the upper end of the base plate, passing through the drop grooves. A movable rod is connected to the support ring via a spring post. The movable rod can push the base plate and the positioning element to rotate.

[0008] As a further embodiment of this utility model, two positioning elements are provided, symmetrically distributed inside the two symmetrical drop grooves of the support ring, and the positioning elements are designed with rubber material.

[0009] As a further embodiment of this utility model, a U-shaped frame is fixedly connected to the upper end of the base of the grinding device, and a grinding mechanism is provided on the U-shaped frame. The grinding mechanism includes a drive cylinder set on the U-shaped frame. The output shaft of the drive cylinder passes through the U-shaped frame and is connected to a connecting rod. A connecting plate is provided at the lower end of the connecting rod, and the two are connected by a connecting mechanism. An inner grinding component and an outer grinding component are fixedly connected to the lower end of the connecting plate.

[0010] As a further embodiment of this utility model, multiple outer grinding components are provided, and the inner grinding component is located at the center of the outer grinding components. The number of outer grinding components is consistent with the number of slots in the stator core.

[0011] As a further embodiment of this utility model, the limiting mechanism includes a placement groove opened at the center of the upper end of the grinding device base, the placement cylinder is located inside the placement groove, a limiting groove is opened on the inner wall of the placement groove, and a limiting rod is fixedly connected to the outer wall of the placement cylinder, the limiting rod being adapted to the limiting groove.

[0012] As a further embodiment of this utility model, the connecting mechanism includes a spiral groove formed at the center of the lower end of the connecting rod 4, and a spiral column is fixedly connected at the center of the upper end of the connecting disc, with the spiral column and the spiral groove being spirally installed.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up positioning and grinding mechanisms, the stator core can be quickly placed and positioned, and the inner ring and groove of the stator core can be ground simultaneously, greatly improving the grinding efficiency of the device. Secondly, by setting up limiting and connecting mechanisms, different sized placement cylinders can be quickly replaced, and different sized grinding parts can also be quickly replaced, enabling the device to grind stator cores of different sizes, further improving the practicality of the device. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a grinding device for motor stator core;

[0016] Figure 2 for Figure 1 A partial diagram of the exploded structure;

[0017] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 for Figure 3 A cross-sectional structural diagram of the positioning component;

[0019] Figure 5 for Figure 2 A schematic diagram of the structure viewed from below.

[0020] In the diagram: 1. Grinding device base; 2. U-shaped frame; 3. Drive cylinder; 4. Connecting rod; 5. Connecting plate; 6. Inner grinding component; 7. Outer grinding component; 8. Placement cylinder; 9. Placement groove; 10. Limiting rod; 11. Limiting groove; 12. Support ring; 13. Drop groove; 14. Spring shaft; 15. Base plate; 16. Positioning component; 17. Movable rod; 18. Spiral column; 19. Spiral groove. Detailed Implementation

[0021] Please see Figures 1-5 In this embodiment of the present invention, a grinding device for a motor stator core includes a grinding device base 1. A U-shaped frame 2 is fixedly connected to the upper end of the grinding device base 1. A drive cylinder 3 is provided at the center of the upper end of the U-shaped frame 2. The output shaft of the drive cylinder 3 passes through the U-shaped frame 2 and is connected to a connecting rod 4. A connecting plate 5 is provided at the lower end of the connecting rod 4. An inner grinding component 6 and an outer grinding component 7 are fixedly connected to the lower end of the connecting plate 5. A placement groove 9 is provided at the center of the upper end of the grinding device base 1. A placement cylinder 8 is installed inside the placement groove 9. The inside of the placement cylinder 8 is used to place the stator core to be ground. When the drive cylinder 3 is working, it can drive the inner grinding component 6 and the outer grinding component 7 to move, thereby realizing the grinding work of the stator core.

[0022] A support ring 12 is fixedly connected inside the placement cylinder 8. The support ring 12 is used to support the stator core. Multiple drop grooves 13 are opened on the support ring 12. The grinding debris can fall directly down through the drop grooves 13, which facilitates the centralized treatment of the debris. A spring shaft 14 is fixedly installed at the lower end of the support ring 12. A base plate 15 is fixedly connected to the movable part of the spring shaft 14. A positioning part 16 is fixedly connected to the upper end of the base plate 15. The positioning part 16 passes through the drop groove 13. When placing the stator core to be ground, the stator core can be quickly placed through the positioning part 16. The positioning part 16 is designed with rubber material and can be deformed under pressure. A movable rod 17 is connected to the support ring 12 through a spring column (not shown in the figure). When the movable rod 17 moves down, it can push the base plate 15 to rotate based on the spring shaft 14, so that the positioning part 16 can be removed from the drop groove 13 after positioning, without affecting the falling of debris.

[0023] The lower end of the connecting rod 4 is provided with a spiral groove 19, and a spiral column 18 is fixedly connected to the center of the upper end of the connecting plate 5. The inner grinding part 6 and the outer grinding part 7 can be quickly replaced through the spiral column 18 and the spiral groove 19 to be suitable for grinding different stator cores. The inside of the placement groove 9 is provided with a limiting groove 11, and a limiting rod 10 is fixedly connected to the outer wall of the placement cylinder 8. By inserting the limiting rod 10 into the inside of the limiting groove 11, the replacement and installation of the placement cylinder 8 can be quickly realized.

[0024] The working principle of this utility model is as follows: When the stator core needs to be ground, the stator core to be ground is first placed on the support ring 12 inside the placement cylinder 8. The angular position of the stator core is then positioned by aligning the positioning piece 16 with the groove of the stator core. During the placement of the stator core, the movable rod 17 is pushed downward. When the movable rod 17 moves downward, it can push the base plate 15 to rotate based on the spring shaft 14, so that the positioning piece 16 can be removed from the drop groove 13 after positioning without affecting the falling of debris. After placement, the drive cylinder 3 is activated. When the drive cylinder 3 is activated, it can be connected via the connecting rod 4 and the connecting... The disc 5 drives the inner grinding component 6 and the outer grinding component 7 to move downwards. The inner grinding component 6 and the outer grinding component 7 enter the interior of the stator core to complete the grinding of the stator core. The grinding debris can be directly dropped into the drop groove 13, which is convenient for the staff to collect and process the debris later. When it is necessary to grind stator cores of different sizes, the connecting disc 5 is rotated by the spiral column 18 based on the spiral groove 19, so as to quickly replace the inner grinding component 6 and the outer grinding component 7. At the same time, it is only necessary to remove the placement cylinder 8 from the placement groove 9 for replacement, which greatly improves the practicality of the device.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding device for a motor stator core, comprising a grinding device base (1), characterized in that: The upper end of the grinding device base (1) is provided with a placement cylinder (8), and the two are connected by a limiting mechanism. The placement cylinder (8) is provided with a positioning mechanism. The positioning mechanism includes a support ring (12) fixedly connected inside the placement cylinder (8). The support ring (12) has multiple drop grooves (13). The lower end of the support ring (12) is fixedly installed with a spring shaft (14). The movable part of the spring shaft (14) is connected to a base plate (15). The upper end of the base plate (15) is fixedly connected with a positioning element (16). The positioning element (16) passes through the drop groove (13). The support ring (12) is connected to a movable rod (17) through a spring column. The movable rod (17) can push the base plate (15) and the positioning element (16) to rotate.

2. The grinding device for a motor stator core according to claim 1, characterized in that, Two positioning elements (16) are provided, symmetrically distributed inside the two symmetrical drop grooves (13) of the support ring (12), and the positioning elements (16) are designed with rubber material.

3. The grinding device for a motor stator core according to claim 2, characterized in that, The upper end of the base (1) of the grinding device is fixedly connected to a U-shaped frame (2). A grinding mechanism is provided on the U-shaped frame (2). The grinding mechanism includes a drive cylinder (3) provided on the U-shaped frame (2). The output shaft of the drive cylinder (3) passes through the U-shaped frame (2) and is connected to a connecting rod (4). A connecting plate (5) is provided at the lower end of the connecting rod (4), and the two are connected by a connecting mechanism. An inner grinding component (6) and an outer grinding component (7) are fixedly connected at the lower end of the connecting plate (5).

4. The grinding device for a motor stator core according to claim 3, characterized in that, Multiple outer grinding parts (7) are provided, and the inner grinding part (6) is located at the center of the outer grinding parts (7). The number of outer grinding parts (7) is the same as the number of slots in the stator core.

5. The grinding device for a motor stator core according to claim 1, characterized in that, The limiting mechanism includes a placement groove (9) located at the center of the upper end of the grinding device base (1), a placement cylinder (8) located inside the placement groove (9), a limiting groove (11) on the inner wall of the placement groove (9), and a limiting rod (10) fixedly connected to the outer wall of the placement cylinder (8), the limiting rod (10) being adapted to the limiting groove (11).

6. The grinding device for a motor stator core according to claim 3, characterized in that, The connecting mechanism includes a spiral groove (19) at the center of the lower end of the connecting rod (4), and a spiral column (18) is fixedly connected at the center of the upper end of the connecting disc (5). The spiral column (18) and the spiral groove (19) are spirally installed.

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