Permanent magnet linear motor single-shaft module

Abstract

The utility model discloses a permanent magnet linear motor single axle module, it includes U-shaped guide rail, the upper surface fixed connection of U-shaped guide rail has stator, the upper surface fixed connection of U-shaped guide rail has slide, the outer surface sliding connection of slide has connecting plate, the lower surface fixed connection of connecting plate has permanent magnet mover, the inner surface sliding connection of U-shaped guide rail has buffer block. Through setting buffer block, limit board, gyro wheel, spring and box cover, can weaken the impact force when hitting U-shaped guide rail when connecting plate moving position is too big, thereby the service life of promotion device, through setting first threaded hole, bolt and second threaded hole, can open box cover, thereby convenient for the replacement of spring, and then ensure that the buffer effect of module is in the best state all the time, and through setting limit ring, first limit half ring and second limit half ring, can be positioned to the position of spring, thereby ensuring the stability of spring.

Description

Technical Field

[0001] This utility model relates to the field of linear motor technology, and in particular to a single-axis module of a permanent magnet linear motor. Background Technology

[0002] A linear motor is an electric motor that directly converts electrical energy into linear motion, characterized by high speed, high precision, high acceleration, and fast response. With the rapid development of industrial automation and precision manufacturing technologies, linear motors have been widely used in various high-precision motion control systems.

[0003] However, existing linear motors still have certain defects. For example, the lack of buffers at both ends causes the connecting block to detach from the guide rail or collide with the sides of the guide rail when the movement is too large, resulting in damage to the entire linear motor module. Secondly, although some linear motors have buffer components, the buffer springs cannot be replaced, causing the elasticity of the buffer springs to decrease after prolonged use, thus affecting the buffering effect. A search revealed that the technical solution provided by utility model application number CN202320641129.5 also suffers from the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a single-axis module for a permanent magnet linear motor, which can reduce the impact force when the connecting plate moves too far against the U-shaped guide rail, thereby improving the service life of the device, facilitating the replacement of the spring, ensuring that the buffering effect of the module is always in the best state, and limiting the position of the spring to ensure the stability of the spring.

[0005] To achieve the above objectives, a single-axis module for a permanent magnet linear motor is provided, comprising:

[0006] A U-shaped guide rail has a stator fixedly connected to its upper surface, a slide bar fixedly connected to its upper surface, a connecting plate slidably connected to the outer surface of the slide bar, a permanent magnet mover fixedly connected to the lower surface of the connecting plate, a buffer block slidably connected to the inner surface of the U-shaped guide rail, a limit plate fixedly connected to the side surface of the buffer block, a roller fixedly connected to the outer surface of the limit plate, a limit ring fixedly connected to the side surface of the limit plate, a spring provided on the inner surface of the limit ring, a first limit half-ring fixedly connected to the inside of the U-shaped guide rail, a first threaded hole provided on the upper surface of the U-shaped guide rail, a bolt threadedly connected to the inner surface of the first threaded hole, a cover threadedly connected to the outer surface of the bolt, and a second limit half-ring fixedly connected to the inner surface of the cover.

[0007] According to the single-axis module of the permanent magnet linear motor, the outer surface of the cover is provided with a second threaded hole, and the inner surface of the second threaded hole is adapted to the bolt.

[0008] According to the single-axis module of the permanent magnet linear motor, the buffer block is made of rubber, and there are two buffer blocks that are symmetrically distributed.

[0009] According to the single-axis module of the permanent magnet linear motor, the interior of the U-shaped guide rail is in contact with the roller, and the inner surface of the cover is in contact with the roller.

[0010] According to the single-axis module of the permanent magnet linear motor, the outer surface of the limiting plate is slidably connected to the U-shaped guide rail, and the outer surface of the limiting plate is slidably connected to the box cover.

[0011] According to the single-axis module of the permanent magnet linear motor, the side surface of the limiting plate is in contact with the spring, the inside of the U-shaped guide rail is in contact with the spring, and the inner surface of the box cover is in contact with the spring.

[0012] According to the single-axis module of the permanent magnet linear motor, the spring is located on the inner surface of the first limiting half-ring and the spring is located on the inner surface of the second limiting half-ring.

[0013] According to the single-axis module of the permanent magnet linear motor, the upper surface of the U-shaped guide rail is in contact with the box cover.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] By incorporating buffer blocks, limit plates, rollers, springs, and a cover, the impact force when the connecting plate moves too far against the U-shaped guide rail can be reduced, thereby extending the service life of the device.

[0016] By setting the first threaded hole, bolt, and second threaded hole, the cover can be opened, making it easy to replace the spring and ensuring that the module's cushioning effect is always at its best. Furthermore, by setting the limit ring, the first limit half-ring, and the second limit half-ring, the position of the spring can be limited, thereby ensuring the stability of the spring.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of the single-axis module of the permanent magnet linear motor of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of the single-axis module of the permanent magnet linear motor of this utility model;

[0021] Figure 3This is a partial structural schematic diagram of the single-axis module of the permanent magnet linear motor of this utility model;

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a schematic diagram of the cover structure of the single-axis module of the permanent magnet linear motor of this utility model.

[0024] Legend:

[0025] 1. U-shaped guide rail; 2. Stator; 3. Slider; 4. Connecting plate; 5. Permanent magnet mover; 6. Buffer block; 7. Limiting plate; 8. Roller; 9. Limiting ring; 10. Spring; 11. First limiting half ring; 12. First threaded hole; 13. Bolt; 14. Cover; 15. Second limiting half ring; 16. Second threaded hole. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1-5This utility model embodiment of a permanent magnet linear motor single-axis module includes: a U-shaped guide rail 1, a stator 2 fixedly connected to the upper surface of the U-shaped guide rail 1, a slide bar 3 fixedly connected to the upper surface of the U-shaped guide rail 1, a connecting plate 4 slidably connected to the outer surface of the slide bar 3, a permanent magnet actuator 5 fixedly connected to the lower surface of the connecting plate 4, a buffer block 6 slidably connected to the inner surface of the U-shaped guide rail 1, a limit plate 7 fixedly connected to the side surface of the buffer block 6, a roller 8 fixedly connected to the outer surface of the limit plate 7, a limit ring 9 fixedly connected to the side surface of the limit plate 7, a spring 10 provided on the inner surface of the limit ring 9, a first limit half ring 11 fixedly connected inside the U-shaped guide rail 1, a first threaded hole 12 provided on the upper surface of the U-shaped guide rail 1, a bolt 13 threadedly connected to the inner surface of the first threaded hole 12, a cover 14 threadedly connected to the outer surface of the bolt 13, a second limit half ring 15 fixedly connected to the inner surface of the cover 14, and a second threaded hole 16 provided on the outer surface of the cover 14. The inner surface of the second threaded hole 16 is adapted to the bolt 13 to facilitate the installation of the cover 14. The buffer block 6 is made of rubber and is used to assist the spring 10 in buffering. There are two buffer blocks 6, which are symmetrically distributed. The inside of the U-shaped guide rail 1 is in contact with the roller 8, and the inner surface of the cover 14 is in contact with the roller 8 to improve the smoothness of the movement of the buffer block 6. The outer surface of the limiting plate 7 is slidably connected to the U-shaped guide rail 1 and the cover 14. The side surface of the limiting plate 7 is in contact with the spring 10. The inside of the U-shaped guide rail 1 is in contact with the spring 10, and the inner surface of the cover 14 is in contact with the spring 10. The spring 10 is located on the inner surface of the first limiting half ring 11 and the inner surface of the second limiting half ring 15 to limit the position of the spring 10. The upper surface of the U-shaped guide rail 1 is in contact with the cover 14. The permanent magnet linear motor module is a mature existing technology component, and its working principle has been disclosed, so it will not be described in detail.

[0028] Working principle: When the movement of the connecting plate 4 is too large, it will first impact the buffer block 6. Then, under the action of the limiting plate 7 and the roller 8, the buffer block 6 compresses the spring 10. Under the action of elastic potential energy, the impact force of the connecting plate 4 can be weakened, thus ensuring that the connecting plate 4 will not be damaged due to rigid impact with the U-shaped guide rail 1. When the spring 10 needs to be replaced, simply loosen the bolts 13 to release the restriction on the cover 14. Then remove the cover 14 to allow the spring to move freely. Once the spring 10 is exposed, simply remove the spring 10 that is clipped between the limiting ring 9 and the first limiting half-ring 11 to complete the disassembly. Then, clip one end of the new spring 10 into the limiting ring 9 and the other end into the first limiting half-ring 11. Then, close the box cover 14 again and screw in the bolt 13 to complete the installation of the new spring 10. At this time, the end of the spring near the first limiting half-ring 11 will also be clipped into the interior of the second limiting half-ring 15, thereby limiting the overall spring 10 to improve stability.

[0029] 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 single-axis module for a permanent magnet linear motor, comprising: A U-shaped guide rail (1) is provided, wherein a stator (2) is fixedly connected to the upper surface of the U-shaped guide rail (1), a slide bar (3) is fixedly connected to the upper surface of the U-shaped guide rail (1), a connecting plate (4) is slidably connected to the outer surface of the slide bar (3), and a permanent magnet mover (5) is fixedly connected to the lower surface of the connecting plate (4). The U-shaped guide rail (1) is characterized by having a buffer block (6) slidably connected to the inner surface of the U-shaped guide rail (1), a limit plate (7) fixedly connected to the side surface of the buffer block (6), and a roller (8) fixedly connected to the outer surface of the limit plate (7). The side surface of the limiting plate (7) is fixedly connected to a limiting ring (9), and the inner surface of the limiting ring (9) is provided with a spring (10). The inside of the U-shaped guide rail (1) is fixedly connected to a first limiting half ring (11). The upper surface of the U-shaped guide rail (1) is provided with a first threaded hole (12). The inner surface of the first threaded hole (12) is threadedly connected to a bolt (13). The outer surface of the bolt (13) is threadedly connected to a box cover (14). The inner surface of the box cover (14) is fixedly connected to a second limiting half ring (15).

2. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The outer surface of the cover (14) is provided with a second threaded hole (16), and the inner surface of the second threaded hole (16) is adapted to the bolt (13).

3. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The buffer block (6) is made of rubber, and there are two buffer blocks (6) that are symmetrically distributed.

4. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The interior of the U-shaped guide rail (1) is in contact with the roller (8), and the inner surface of the box cover (14) is in contact with the roller (8).

5. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The outer surface of the limiting plate (7) is slidably connected to the U-shaped guide rail (1), and the outer surface of the limiting plate (7) is slidably connected to the box cover (14).

6. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The side surface of the limiting plate (7) is in contact with the spring (10), the inside of the U-shaped guide rail (1) is in contact with the spring (10), and the inner surface of the box cover (14) is in contact with the spring (10).

7. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The spring (10) is located on the inner surface of the first limiting half ring (11) and the spring (10) is located on the inner surface of the second limiting half ring (15).

8. The single-axis module of the permanent magnet linear motor according to claim 1, characterized in that, The upper surface of the U-shaped guide rail (1) is in contact with the box cover (14).

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