Robot joint motor

Abstract

The utility model relates to a robot joint motor, and relates to the field of intelligent machines, the robot joint motor comprises a rotor, a stator, a first end cover and a second end cover, the rotor and the stator are arranged between the first end cover and the second end cover, the rotor is arranged in the stator, and the first end cover and the second end cover are connected and fixed through a first bolt. The rotor is fixed between the first end cover and the second end cover through a bearing, and an output shaft of the rotor penetrates through the first end cover and extends out of the first end cover. According to the motor, the components are made of light high-strength materials, and an outer shell of a traditional motor is omitted, so that the overall weight of the motor is reduced through structural adjustment, the light weight of the motor is realized, and the working efficiency of the motor is improved.

Description

Technical Field

[0001] This application relates to the field of intelligent machines, and in particular, to a robot joint motor. Background Art

[0002] With the development of industry, the labor cost is getting higher and higher, and the requirements for fine processing are also getting higher and higher. The previous manual operations are gradually replaced by robots, and many high-risk and high-pollution industries are also gradually using robots to replace manual work. For a robot to perform various actions, it needs to have multiple joints, and joint motors are installed at the joints to achieve multi-dimensional actions. The more complex the robot is, the more joints it requires. The robot performs various complex actions mainly by the drive of the motors installed on the joints. Therefore, the joint motor is the most core component of the robot. To achieve a faster action response speed and a lighter equipment weight, it is necessary to develop a lightweight joint motor. Summary of the Utility Model

[0003] A robot joint motor provided by this application adopts the following technical solutions:

[0004] A robot joint motor, characterized in that it includes: a rotor, a stator, a first end cover and a second end cover. The rotor and the stator are both arranged between the first end cover and the second end cover. The rotor is arranged inside the stator. The first end cover and the second end cover are fixedly connected by a first bolt. The rotor is fixed between the first end cover and the second end cover through a bearing. The output shaft of the rotor passes through the first end cover and extends outside the first end cover.

[0005] In one embodiment, the rotor includes an output shaft, a rotor core, a permanent magnet and a moving ring plate. The rotor core is sleeved on the output shaft. The output shaft is provided with a limiting groove. The rotor core is provided with a limiting block. The limiting block is located in the limiting groove. The permanent magnet is arranged on the peripheral wall of the rotor core. The moving ring plate is sleeved on the output shaft and is fixedly connected to the output shaft by a second bolt. The rotor core and the permanent magnet are both arranged between the moving ring plate and the output shaft.

[0006] In one embodiment, a magnetic encoder module is arranged at one end of the output shaft close to the second end cover. A driving plate is arranged outside the second end cover. The magnetic encoder module is connected to the driving plate.

[0007] A robot joint motor provided by an embodiment of the present disclosure can achieve the following technical effects:

[0008] By using lightweight high-strength materials to process and manufacture each component and canceling the outer casing of the traditional motor, the overall weight of the motor is reduced through structural adjustment, the lightweight of the motor is realized, and the working efficiency of the motor is improved.

[0009] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the robot joint motor provided by an embodiment of this application.

[0011] Figure 2 It is an exploded structure schematic diagram of the robot joint motor provided by an embodiment of this application.

[0012] Figure 3 It is a schematic diagram of the structure of the rotor provided by an embodiment of this application.

[0013] Description of the reference numerals: 1. Rotor; 2. Stator; 3. First end cover; 4. Second end cover; 5. Output shaft; 6. Rotor core; 7. Permanent magnet; 8. Moving ring plate; 9. Limiting groove; 10. Limiting block; 11. First bolt; 12. Second bolt; 13. Magnetic encoder module. Detailed Description of the Embodiments

[0014] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, in the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0016] The following further describes this application with reference to the Figures 1-3 This application is further described in detail.

[0017] A robot joint motor includes: a rotor 1, a stator 2, a first end cover 3 and a second end cover 4. Both the rotor 1 and the stator 2 are disposed between the first end cover 3 and the second end cover 4. The rotor 1 is disposed inside the stator 2. The first end cover 3 and the second end cover 4 are fixedly connected by a first bolt 11. The rotor 1 is fixed between the first end cover 3 and the second end cover 4 through a bearing. The output shaft 5 of the rotor 1 passes through the first end cover 3 and extends outside the first end cover 3.

[0018] During installation, the stator 2 needs to be positioned and limited with respect to the first end cover 3 and the second end cover 4, and then the first end cover 3 and the second end cover 4 are fixed by the first bolt 11. The rotor 1 is installed and fixed to the first end cover 3 and the second end cover 4 through bearings, thus completing the overall assembly of the motor.

[0019] In this embodiment, by using lightweight and high-strength materials to process and manufacture each component and canceling the outer casing of the traditional motor, the overall weight of the motor is reduced through structural adjustment, achieving the lightweight of the motor and improving the working efficiency of the motor.

[0020] In one embodiment, the rotor 1 includes an output shaft 5, a rotor core 6, a permanent magnet, and a moving ring plate 8. The rotor core 6 is sleeved on the output shaft 5. The output shaft 5 is provided with a limiting groove 9, and the rotor core 6 is provided with a limiting block 10. The limiting block 10 is located in the limiting groove 9. The permanent magnet is arranged on the peripheral wall of the rotor core 6. The moving ring plate 8 is sleeved on the output shaft 5 and is fixedly connected to the output shaft 5 through a second bolt 12. Both the rotor core 6 and the permanent magnet 7 are arranged between the moving ring plate 8 and the output shaft 5.

[0021] The cooperation of the limiting groove 9 and the limiting block 10 makes the rotor core 6 relatively fixed with respect to the output shaft 5, preventing relative axial rotation. The moving ring plate 8 is fixed to the output shaft 5 through the second bolt 12, and both the rotor core 6 and the permanent magnet 7 are arranged between the moving ring plate 8 and the output shaft 5, thereby preventing the rotor core 6 and the permanent magnet 7 from moving or being misaligned along the length direction of the output shaft 5.

[0022] In one embodiment, a magnetic encoder module 13 is provided at one end of the output shaft 5 close to the second end cover 4, and a drive board is provided outside the second end cover 4. The magnetic encoder module 13 is connected to the drive board. The magnetic encoder module 13 and the drive board are used to collect relevant parameters of the motor and control the operation of the motor.

[0023] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A robot joint motor, characterized in that: include: A rotor, a stator, a first end cover and a second end cover, wherein the rotor and the stator are both arranged between the first end cover and the second end cover, the rotor is arranged in the stator, the first end cover and the second end cover are connected and fixed by a first bolt, the rotor is fixed between the first end cover and the second end cover by a bearing, and the output shaft of the rotor passes through the first end cover and extends out of the first end cover.

2. The robot joint motor according to claim 1, characterized in that: The rotor includes an output shaft, a rotor core, a permanent magnet and a moving ring plate. The rotor core is sleeved on the output shaft. The output shaft is provided with a limit groove. The rotor core is provided with a limit block. The limit block is located in the limit groove. The permanent magnet is arranged on the peripheral wall of the rotor core. The moving ring plate is sleeved on the output shaft and is connected and fixed to the output shaft by a second bolt. The rotor core and the permanent magnet are both arranged between the moving ring plate and the output shaft.

3. The robot joint motor according to claim 1 or 2, characterized in that: A magnetic encoding module is provided at one end of the output shaft close to the second end cover, a driving plate is provided outside the second end cover, and the magnetic encoding module is connected to the driving plate.

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