A positioning device for a rotor of an electric machine

Abstract

This utility model relates to a positioning device for a motor rotor, belonging to the technical field of rotor processing equipment. It includes a base plate on which sliding blocks are slidably connected. A detachable clamping fixture for holding the motor rotor is mounted on the sliding blocks. The clamping fixture includes a clamping plate mounted on the sliding blocks, an adjusting spring mounted on the inner lower end of the clamping plate, and a limiting block for limiting the rotor shaft on one side of the adjusting spring. A driving device for driving the two sliding blocks to move relative to each other is mounted on the base plate. This utility model uses the driving device to drive the two clamping fixtures to operate relative to each other, clamping the motor rotor. The limiting block can also assist in clamping the surface of the motor rotor shaft, thus helping to limit and maintain the axial position. The clamping fixture is detachable and can be replaced, allowing the fixture to clamp various types of motor rotors.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor processing equipment, specifically to a positioning device for an electric motor rotor. Background Technology

[0002] The function of the motor rotor is to output torque. From an electromagnetic perspective, whether it is an AC or DC motor, the rotor of the motor interacts with the stator of the motor to generate a torque output, which is a relatively important structure of the motor.

[0003] Existing rotor machining fixtures lack a structure for precise rotor positioning; they merely clamp the rotor. Since the rotor is cylindrical with a curved outer surface, it is prone to shifting during clamping without a positioning block for precise positioning, leading to improper clamping.

[0004] Existing patents, such as the positioning device for a motor rotor with application number CN202420489547.1, belong to the field of rotor processing technology. It includes a base plate and a clamping mechanism set on the base plate. The clamping mechanism includes two sliders, each of which is equipped with a movable plate. A support plate is provided on the movable plate, and a clamping plate is provided inside the support plate. Multiple locking strips are provided on the clamping plate corresponding to the strip groove on the outer side of the rotor.

[0005] The aforementioned patent securely clamps the rotor, preventing it from rotating during clamping. However, relying on spring-driven clamping leads to reduced clamping effectiveness after prolonged use. Utility Model Content

[0006] This utility model aims to solve the above-mentioned technical problems by providing a positioning device for a motor rotor.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] A positioning device for an electric motor rotor includes a base plate on which sliders are slidably connected and mounted opposite each other.

[0009] The slider is equipped with a detachable clamp that can clamp the motor rotor. The clamp includes a clamping plate installed on the slider. An adjusting spring is installed on the inner side of the lower end of the clamping plate. A limiting block for limiting the rotor shaft is installed on one side of the adjusting spring.

[0010] The base plate is equipped with a drive device that drives the two sliders to move relative to each other.

[0011] Preferably, a guide rail is provided on the base plate, and a guide groove is provided at the lower end of the slider to cooperate with the guide rail.

[0012] Preferably, guide posts are mounted opposite each other on the slider, and guide holes are provided on the fixture to cooperate with the guide posts.

[0013] Preferably, a limiting post is installed on the side of the limiting block near the adjusting spring, and the limiting post passes through the clamp, and a limiting hole is provided on the clamp to cooperate with the movement of the limiting post.

[0014] Preferably, the driving device includes a telescopic rod disposed on the base plate, and the telescopic end of the telescopic rod is connected to one side of the slider. A straight toothed plate is installed on the opposite surface of the two sliders, and the two straight toothed plates pass through the opposing sliders respectively. A fixed shaft is installed on the base plate, and a rotating gear is connected to the fixed shaft by a bearing. The rotating gear meshes with the two straight toothed plates respectively.

[0015] Preferably, the slider has a through hole for the straight toothed plate to pass through.

[0016] With the above structure, this utility model has the following advantages:

[0017] This utility model uses a drive device to drive two clamps to operate relative to each other, clamping the motor rotor. The limiting block can assist in clamping the surface of the motor rotor shaft, thus helping to limit and maintain the axial position. The clamps are detachable and can be replaced, so that the tooling can clamp various types of motor rotors.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded view of this utility model.

[0022] As shown in the figure: 1. Base plate; 2. Slider; 3. Fixture; 301. Clamping plate; 302. Adjusting spring; 303. Limiting block; 304. Limiting post; 305. Limiting hole; 4. Drive device; 401. Telescopic rod; 402. Straight tooth plate; 403. Fixed shaft; 404. Rotary gear; 5. Guide rail; 6. Guide groove; 7. Guide post; 8. Guide hole; 9. Connecting hole. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The present invention will now be described in further detail in conjunction with the full text.

[0026] Combined with appendix Figure 1 and Figure 2 A positioning device for a motor rotor includes a base plate 1, on which a slider 2 is slidably connected; a detachable clamp 3 for clamping the motor rotor is mounted on the slider 2, the clamp 3 including a clamping plate 301 mounted on the slider 2, an adjusting spring 302 mounted on the inner side of the lower end of the clamping plate 301, and a limiting block 303 for limiting the rotor shaft mounted on one side of the adjusting spring 302. The clamping plates 301 of the two clamps 3 can clamp the outer side of the motor rotor, and the limiting block 303 can assist in clamping the surface of the motor rotor shaft, thereby achieving the effect of assisting in limiting and maintaining the axial position.

[0027] Specifically, the inner sides of the limiting block 303 and the clamping plate 301 are provided with a rubber layer; the rubber layer can increase the friction between the limiting block 303 and the clamping plate 3011 and the motor rotor, making the limiting block 303 and the clamping plate 301 clamp the motor rotor more firmly, and the rubber layer can also prevent the clamping plate 103 from damaging the outer surface of the motor rotor during the clamping process.

[0028] In specific implementation of this utility model, such as Figure 2As shown, a guide rail 5 is provided on the base plate 1, and a guide groove 6 is provided at the lower end of the slider 2 to cooperate with the guide rail 5. The slider 2 can move under the guidance of the guide rail 5, which serves as a limiting function.

[0029] In specific implementation of this utility model, such as Figure 2 As shown, guide posts 7 are mounted opposite each other on the slider 2, and guide holes 8 are opened on the clamping plate 301 to cooperate with the guide posts 7. The clamping plate 301 is installed and detached through the two guide posts 7 and the guide holes 8, so that the clamping fixture 3 can be replaced. Thus, the two clamping fixtures 3 can clamp different models of motor rotors. A limiting post 304 is installed on the side of the limiting block 303 near the adjusting spring 302 and the limiting post 304 passes through the clamping fixture 3. A limiting hole 305 is opened on the clamping fixture 3 to cooperate with the movement of the limiting post 304, and the limiting post 304 moves in the limiting hole 305 to play a limiting and guiding role.

[0030] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown, a drive device 4 for driving two sliders 2 to move relative to each other is installed on the base plate 1. The drive device 4 includes a telescopic rod 401 on the base plate 1, with the telescopic end of the telescopic rod 401 connected to one side of the slider 2. A straight toothed plate 402 is installed on the opposite surfaces of the two sliders 2, and the two straight toothed plates 402 pass through the opposing sliders 2. A fixed shaft 403 is installed on the base plate 1, and a rotating gear 404 is connected to the fixed shaft 403 by a bearing. The rotating gear 404 meshes with the two straight toothed plates 402 respectively. Specifically, the telescopic rod 401 can be an electric telescopic rod or a pneumatic telescopic rod, which are existing technologies that can be directly purchased and used, and will not be elaborated here. When the telescopic rod 401 extends, it drives one slider 2 to move, and through the straight toothed plate 402, it drives the rotating gear 404 to rotate, thereby driving the other straight toothed plate 402 to move, thus driving the other slider 2 to move, causing the two sliders 2 to move relative to each other.

[0031] A connecting hole 9 is provided on the slider 2 to accommodate the through passage of the straight toothed plate 402. The straight toothed plate 402 can move within the connecting hole 9, serving as a limit and a conductor for the rotor.

[0032] The working principle of this utility model:

[0033] like Figure 1 As shown, when clamping the motor rotor, the motor rotor is manually held between the two clamps 3. The telescopic rod 401 extends, driving one slider 2 to move. It also drives the rotating gear 404 to rotate through the straight tooth plate 402, thereby driving the other straight tooth plate 402 to move, which in turn drives the other slider 2 to move. This causes the two sliders 2 to move relative to each other. The two clamps 3 clamp the motor rotor. The limiting block 303 can assist in clamping the surface of the motor rotor shaft, which helps to limit and maintain the axial position.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A positioning device for a motor rotor, characterized in that, Includes a base plate (1), on which a slider (2) is slidably connected; The slider (2) is equipped with a detachable clamp (3) that can clamp the motor rotor. The clamp (3) includes a clamping plate (301) installed on the slider (2). An adjusting spring (302) is installed on the inner side of the lower end of the clamping plate (301). A limiting block (303) for limiting the rotor shaft is installed on one side of the adjusting spring (302). The base plate (1) is equipped with a drive device (4) that drives the two sliders (2) to move relative to each other.

2. The positioning device for a motor rotor according to claim 1, characterized in that: The base plate (1) has a guide rail (5) and the slider (2) has a guide groove (6) at its lower end that works with the guide rail (5).

3. The positioning device for a motor rotor according to claim 1, characterized in that: The slider (2) is mounted with guide posts (7) opposite to each other, and the clamping plate (301) is provided with guide holes (8) for use with guide posts (7).

4. The positioning device for a motor rotor according to claim 1, characterized in that: The limiting block (303) has a limiting post (304) installed on the side near the adjusting spring (302), and the limiting post (304) passes through the clamp (3). The clamp (3) has a limiting hole (305) that cooperates with the movement of the limiting post (304).

5. The positioning device for a motor rotor according to claim 1, characterized in that: The driving device (4) includes a telescopic rod (401) mounted on the base plate (1), and the telescopic end of the telescopic rod (401) is connected to one side of the slider (2). A straight tooth plate (402) is mounted on the opposite surface of the two sliders (2), and the two straight tooth plates (402) pass through the opposing sliders (2). A fixed shaft (403) is mounted on the base plate (1), and a rotating gear (404) is connected to the fixed shaft (403) by a bearing. The rotating gear (404) meshes with the two straight tooth plates (402) respectively.

6. The positioning device for a motor rotor according to claim 1, characterized in that: The slider (2) has a connecting hole (9) through which a straight toothed plate (402) passes.

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