Boring, milling machine primed by straight-line driven portal shaped in zero phase on beam of magnetic suspension

A technology of linear drive and control method, applied in the field of numerical control, can solve problems such as inability to guarantee synchronization performance, equipment damage, etc.
CN1915587AInactive Publication Date: 2007-02-21SHENYANG POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG POLYTECHNIC UNIV
Publication Date
2007-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A movable boring-milling machine is composed of a magnetically suspended transverse beam, a straight-line motor driven gantry, movable machine-tool and control circuit unit including the control circuit for the synchronous drive of dual straight-line motos and the control circuit for controlling the height of transverse beam. Its control method includes the synchronous control to dual straight-line motor by improved master-slave synchronous drive, and controlling the suspended height of said transverse beam.
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Description

technical field

[0001] The invention belongs to the technical field of numerical control, and in particular relates to a zero-phase linear drive gantry mobile boring and milling machine for a magnetic levitation beam and a control method. Background technique

[0002] High-precision large-scale CNC machine tools are key equipment and strategic materials in the national economy and national defense construction. There is still a large gap between my country and advanced countries. Among the large-scale processing equipment, the gantry mobile CNC machining center is one of the most representative machine tools. In the gantry mobile machining center, there is friction between the moving parts and the stationary guide rail, which reduces the accuracy of the kinematic pair, wears and generates heat, and deforms the precision parts. Especially in the case of low-speed micro-feeding, due to the nonlinearity between friction and motion speed, the so-called inchworm motion mode or c...

Claims

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