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Magnetic suspension feeding platform of liner synchronous motor of digital control machine tool

A linear synchronous, numerically controlled machine tool technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve problems such as poor stability and reliability, complex structure, and inability to solve frictional resistance well, and achieve high reliability and platform. Simple structure, elimination of creep and effect of reverse dead zone

Inactive Publication Date: 2010-10-06
SHENYANG POLYTECHNIC UNIV
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  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: The present invention provides a linear synchronous motor magnetic levitation feed platform for CNC machine tools. Very good solution to the technical problems of frictional resistance

Method used

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  • Magnetic suspension feeding platform of liner synchronous motor of digital control machine tool
  • Magnetic suspension feeding platform of liner synchronous motor of digital control machine tool
  • Magnetic suspension feeding platform of liner synchronous motor of digital control machine tool

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, the present invention will be further described:

[0028] A linear synchronous motor magnetic levitation feed platform for a CNC machine tool, comprising a feed platform 1 and a long stator linear synchronous motor, the long stator linear synchronous motor mainly includes a stator core 4 and a mover core that moves relative to the stator core 4 during use 2. The feed platform 1 is installed on the mover core 2; an excitation winding 3 is arranged inside the mover core 2, and the excitation winding 3 can generate magnetic levitation between the mover core 2 and the stator core 4; The stator core 4 is provided with a thrust winding 5 , and the thrust winding 5 can make the mover core 2 move relative to the stator core 4 . like figure 1 As shown, the wiring direction of the excitation winding 3 and the thrust winding 5 is perpendicular to the moving direction of the mover core 2 along the stator core 4 . An eddy current sen...

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Abstract

The invention provides a magnetic suspension feeding platform of a liner synchronous motor of a digital control machine tool, comprising a feeding platform and a long stator linear synchronous motor, wherein the long stator linear synchronous motor mainly comprises a stator iron core and a rotor iron core capable of making motion relative to the stator iron core. The invention is characterized in that the feeding platform is installed on the rotor iron core; an excitation winding is arranged in the rotor iron core, and a thrust winding is arranged in the stator iron core; the feeding platform is provided with an eddy current sensor; the stator iron core is provided with a long grating sensor; the excitation winding and the eddy current sensor are connected to a magnetic suspension control system; and thrust winding and the long grating sensor are connected to a feeding control system. The invention adopts the normal magnetic tensile force of the electro-magnetic liner synchronous motor to suspend the feeding platform in order to eliminate friction, thereby having significant meaning for further improving the processing accuracy of the feeding platform of the digital control machine tool.

Description

technical field [0001] The invention relates to a feeding platform, in particular to a frictionless and direct-feeding linear synchronous motor magnetic levitation feeding platform for a numerical control machine tool, which belongs to the technical field of numerical control. Background technique [0002] The friction resistance generated by the feed platform of CNC machine tools during the machining process, especially the nonlinear friction at low speeds, inevitably affects the accuracy of the feed system, causing the feed system to crawl and cause reverse dead zones. Friction is one of the causes of thermal deformation of CNC machine tools and an important factor affecting machining accuracy. Friction is also a factor that causes wear and noise, and requires good lubrication to increase the life of the machine tool. Therefore, how to effectively reduce or eliminate friction has become a technical bottleneck restricting the performance of the feed platform of CNC machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/36H02K41/03
Inventor 蓝益鹏蓝宏宣李成军赵辉张武
Owner SHENYANG POLYTECHNIC UNIV
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