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Linear rotary servo motor with two degrees of freedom

A servo motor, degree of freedom technology, applied in the field of servo motors, can solve the problems of complex structure of the whole machine, high production and maintenance costs, and achieve the effects of improving motion accuracy, fast response speed, and light load

Inactive Publication Date: 2013-12-04
贾莉莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In mechanical equipment, servo control with multiple degrees of freedom is usually required. If a motor with a single degree of freedom is used, the structure of the whole machine will become complicated, and the production and maintenance costs will be high.

Method used

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  • Linear rotary servo motor with two degrees of freedom
  • Linear rotary servo motor with two degrees of freedom
  • Linear rotary servo motor with two degrees of freedom

Examples

Experimental program
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Embodiment Construction

[0007] combine figure 1 as well as image 3 Explain the implementation mode of the primary mover movement. In this embodiment, it is composed of a base 1, a linear stator, and a primary coil 3; , the upper yoke 8; two permanent magnets are attached to the upper and lower yokes respectively, and the upper and lower yokes are connected to the middle yoke 6 through the magnetic yoke to form a complete magnetic field circuit; the permanent magnets attached to the upper magnetic plate 8 The magnet 7 forms a uniform magnetic field 23 whose direction is perpendicular to the middle magnetic yoke 6 on its right side, and the permanent magnet 4 attached to the lower magnetic plate 2 forms a uniform magnetic field 24 whose direction is perpendicular to the middle magnetic plate on its left side; the primary coil 3 penetrate into the uniform magnetic field 24, bypass the middle yoke 6, and pass through the uniform magnetic field 23. When there is a positive current in the primary coil 3...

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Abstract

The invention relates provides a linear rotary servo motor with two degrees of freedom, and relates to the field of servo motors, wherein the linear rotary servo motor with two degrees of freedom can achieve two degrees of freedom of linear motion and rotary motion on one output shaft simultaneously, be used for mechanical equipment, simplify complexity of the equipment, and reduce production and maintenance cost. The linear motion is produced by Ampere force borne by a coil on a primary rotor in a magnetic field, and position feedback is conducted by using a grating ruler. The rotary motion is produced by a hollow cup coil, and position feedback is conducted by using a rotary encoder. Both a primary coil and a secondary coil are of a non-iron-core structure so that rotor mass and rotary inertia can be reduced greatly. The linear rotary servo motor with two degrees of freedom has high response speed. As a position feedback device is directly installed on the rotor, zero transmission and full-closed loop control are achieved, and motion accuracy is improved greatly. The linear rotary servo motor with two degrees of freedom is applicable to short-route, light-load, precision and high-speed movement occasions.

Description

technical field [0001] The invention relates to a servo motor. Background technique [0002] At present, the existing servo motor has only one degree of freedom, the linear motor has the degree of freedom in the linear direction, and the other is the servo motor for rotating motion, which has the degree of freedom in the direction of rotation. In mechanical equipment, servo control with multiple degrees of freedom is usually required. If a motor with a single degree of freedom is used, the structure of the whole machine will become complicated, and the production and maintenance costs will be high. Contents of the invention [0003] The purpose of the present invention is to provide a servo motor with two degrees of freedom, high motion precision and high motion speed. [0004] The linear rotation dual-degree-of-freedom servo motor of the present invention is composed of a base, a linear stator, a primary mover, a secondary mover, a grating ruler, and an encoder; the line...

Claims

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Application Information

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IPC IPC(8): H02K41/06
Inventor 不公告发明人
Owner 贾莉莉
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