Vertical closed-type hydrostatic guide rail with adjustable verticality error

Abstract

The invention relates to a closed-type hydrostatic guide rail of a machine tool, particularly a vertical closed-type hydrostatic guide rail with adjustable verticality error to solve the problem of large verticality error caused by the poor rigidity of a vertical closed-type hydrostatic guide rail of a precise machine tool under the action of one-side overturning moment. The vertical closed-type hydrostatic guide rail is provided with a vertical closed-type hydrostatic guide rail, a verticality error detection control unit and a hydraulic system, wherein the vertical closed-type hydrostatic guide rail includes an upright post, an upright post guide rail and a slider guide rail; the verticality error detection control unit includes a laser interferometer, a reflector, an upper displacement sensor, an upper support, an upper reflection block, a lower displacement sensor, a lower support, a lower reflection block and a data processing and control module; and the hydraulic system includes an upper front servo motor, a lower front servo motor, an upper rear servo motor, a lower rear servo motor, an upper front oil pump, a lower front oil pump, an upper rear oil pump, a lower rear oil pump, an upper front oil inlet pipe, a lower front oil inlet pipe, an upper rear oil inlet pipe, a lower rear oil inlet pipe, and a hydraulic oil tank.

Description

technical field [0001] The invention relates to a closed static pressure guide rail of a machine tool, in particular to a vertical closed static pressure guide rail which is mainly used for precision machine tools and whose verticality error can be adjusted. Background technique [0002] Hydrostatic support technology is widely used in precision machine tools due to its advantages of good rigidity, impact resistance, wear resistance and good accuracy retention. At present, the hydrostatic support technology is widely used in the guide rail devices in the horizontal direction of precision machine tools, especially closed hydrostatic guide rails. Because the load in the horizontal direction of the machine tool is relatively stable, it does not bear the overturning moment, or bears a small overturning moment, etc., the rigidity of the hydrostatic guideway is good, which can ensure the good geometric accuracy of the machine tool in the horizontal direction. Therefore, the closed...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a vertical closed hydrostatic guide rail with adjustable verticality error that solves the problem of excessive verticality error caused by insufficient rigidity of the vertical closed hydrostatic guide rail of precision machine tools due to the overturning moment on one side

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