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Short journey high responding linear motor

A linear motor, short-stroke technology, applied in the direction of electromechanical devices, electrical components, electric components, etc.

Inactive Publication Date: 2005-03-16
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mover of the domestic short-stroke high-response linear motor adopts a single leaf spring structure, and its stroke is limited to within ±1mm

Method used

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  • Short journey high responding linear motor
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  • Short journey high responding linear motor

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Experimental program
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Effect test

Embodiment Construction

[0023] The implementation status of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] figure 1 Represent the overall structure of the present invention, as an embodiment: the effective stroke of the short-stroke high-response linear DC motor is ±5mm; figure 2 and image 3 It can be seen that there is an embedded annular groove 5 on the surface of the stator 1, and the outer annular magnet 2 and the inner annular magnet 3 embedded in it are all made of high-performance permanent magnet material NdFeB; the mover coil 9 is embedded in the outer annular magnet An air gap 4 will be formed between the steel 2 and the inner annular magnetic steel 3, and on both sides; the skeleton 7 of the mover 6 is made of duralumin alloy LY12; the mover coil 9 is 192 turns flat; The type of the linear bearing 10 is 5N / mm, the two ends of the shaft 8 and the eccentric position of the stator are LMF6GUU; the grating scale adopts the JENA...

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Abstract

The invention is a short-travel high-response straight-line electric machine, including a stator and a rotor, where the stator is of a permanent magnet steel internally-embedded annular structure and the rotor is composed of coil framework, connection shaft and coil and makes straight-line motion to and fro under the control of a servo driver; the connection shafts are both supported on a end cover and the stator through straight-line bearing; the connection shafts on two sides of the rotor are coated with a spring, respectively, and the ends of the two springs supports against the end cover and rotor, respectively. For improving push and speed indexes, it reduces rotor mass and size of electric machine; adopts an electric machine position detection-control integrative technique; shows high speed, high acceleration, high precision and high dynamic property and can be applied to high-speed to-and-fro small-displacement three-dimensional vibrating mirror dynamically focusing system, noncircular processing, high-speed grinder, and other places.

Description

technical field [0001] The invention relates to a linear motor, which is used in high-speed reciprocating, small displacement processing occasions and the technical field of feed systems of precision machine tools. Background technique [0002] With the development of advanced manufacturing technologies such as precision manufacturing technology and numerical control technology, high speed, high efficiency and high precision have become the development direction of CNC machine tools, which puts forward higher requirements for the performance of various functional components of machine tools. Taking feed drive components as an example, for processing occasions with small displacement and high reciprocating frequency, such as EDM machine tools, piston profile processing machine tools and laser processing machine tools, etc., the system is required to have fast acceleration and deceleration performance (acceleration 2g) and Extremely high frequency response characteristics (100...

Claims

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Application Information

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IPC IPC(8): H02K33/02H02K41/02
Inventor 艾武金振荣陈幼平杜志强常雪峰谢经明余文勇金颖琦
Owner HUAZHONG UNIV OF SCI & TECH
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