Vertical machining center controllable excitation linear synchronous motor magnetic levitation motion platform

A vertical machining center and motion platform technology, applied in metal processing machinery parts, metal processing equipment, manufacturing tools, etc., can solve problems such as friction, and achieve the effect of simple platform structure, high reliability and energy saving.

CN105500032BInactive Publication Date: 2017-08-25SHENYANG POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

A controllable excitation linear synchronous motor magnetic levitation motion platform for a vertical machining center, characterized in that: the magnetic levitation motion platform includes a motion platform, a base, a controllable excitation linear synchronous motor, a suspension control system and a motion control system; Adjust the current of the armature winding to change the electromagnetic thrust; the magnetic levitation force is the unilateral magnetic pull generated between the excitation pole on the stator and the mover core of the linear synchronous motor. The magnetic levitation force is adjusted by adjusting the excitation current. The motion platform relies on two The magnetic levitation force generated by the motor itself operates, and has the ability of direct automatic levitation.
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Description

technical field

[0001] The invention relates to a motion platform, in particular to a magnetic levitation motion platform for a controllable excitation linear synchronous motor of a vertical machining center, belonging to the technical field of numerical control. Background technique

[0002] Friction is an important factor affecting the machining accuracy of vertical machining centers, and it is also a factor that causes wear and noise. Therefore, reducing or eliminating friction has become a technical bottleneck that restricts the performance of linear motion platforms of vertical machining centers. The linear motion platform of the traditional vertical machining center is mostly driven by a servo motor, driven by a precision ball screw and supported by a sliding guide rail. During high-speed machining, there is serious mechanical friction, which is prone to elastic deformation and dust, which seriously affects the accuracy and quality of the machining center. machine life...

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be further described:

[0029] As shown in the figure, the present invention proposes a controllable excitation linear synchronous motor magnetic levitation motion platform for a vertical machining center. The magnetic levitation motion platform includes a motion platform 2, a base 3, a controllable excitation linear synchronous motor, and a levitation control system. 10 and a motion control system 11; the controllable excitation linear synchronous motor includes a stator core 1 and a mover core 12 that moves relative to the stator core 1 during use; an excitation winding 6 is arranged in the stator core 1; An armature winding 7 is provided; an auxiliary guide rail 4 and a long grating sensor 5 are arranged on the base; the motion platform 2 is connected with the base 3 through the auxiliary guide rail 4, and the motion platform 2 is suspended relative to the base 3 during use; the stator core 1 ...