Precision drive hydrostatic guides driven by linear motors

Abstract

The invention relates to a precise transmission liquid hydrostatic guide rail driven by adopting a linear motor. The precise transmission liquid hydrostatic guide rail comprises a work table, a connector, a work table guide rail plate, a work table guide rail press plate, a machine tool body, a linear motor drag plate, the linear motor, a linear motor guide rail plate and a linear motor guide rail bottom plate, and is characterized in that the work table, the work table guide rail plate, the work table guide rail press plate and the machine tool body of a machine tool form a closed type hydrostatic guide rail, the linear motor drag plate, the linear motor guide rail plate and the linear motor guide rail bottom plate form a force sealed open type hydrostatic guide rail, and the closed type hydrostatic guide rail and the open type hydrostatic guide rail are connected through the connector. The precise transmission liquid hydrostatic guide rail has the advantages that the stability of the operation of the hydrostatic guide rail driven by the linear motor is greatly improved, so the hydrostatic guide rail is combined with the linear motor to realize a better effect in ultra-precise processing equipment.

Description

technical field [0001] The invention relates to a static pressure guide rail, in particular to a transmission liquid static pressure guide rail driven by a linear motor. Background technique [0002] With the continuous development of many industries such as national defense, aerospace, automobiles, and microelectronics, people have put forward higher requirements for the manufacturing and processing industry. High-speed precision machine tools have become an important direction for the development of the machine tool industry. Hydrostatic guide rails are widely used in high-speed precision machine tools because of their advantages such as extremely small frictional resistance, good maintenance of motion accuracy, good anti-vibration performance, and large load-carrying capacity. [0003] Hydrostatic guide rails are divided into two categories: open hydrostatic guide rails and closed hydrostatic guide rails. The open static pressure guide rail relies on the self-weight of t...

AI Technical Summary

Problems solved by technology

[0005] The existing hydrostatic guide rails driven by linear motors mostly adopt a force-closed structure. Although the guide rail structure is simple, due to the structure of the secondary iron core of the linear motor, there are often fluctuations in the non-moving direction during the movement of the parts, and the speed The faster the speed, the greater the fluctuation, and the machining accuracy of the machine tool cannot be guaranteed; while for the structurally closed static pressure guide rail, although the fluctuation of the moving parts in the non-moving direction is limited, the impact on the guide rail pressure plate is greater when the parts move, and the movement Not stable enough, and the structure is complex

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