Grinding wheel spindle variable-angle automatic control system of fully-automatic digital control roll grinding machine

Abstract

The invention discloses a grinding wheel spindle variable-angle automatic control system of a fully-automatic digital control roll grinding machine. A fully-digital alternating current (AC) servo motor outputs power to a ball screw assembly; the ball screw assembly is in threaded connection with a nut sleeve; a guide bar is connected with the nut sleeve by a positioning sliding block; one end of an swing link is arranged on the nut sleeve; a counterweight block is fixedly connected with the swing link; a sleeve is fixedly sleeved on the outer side of a hydrodynamic-hydrostatic grinding head; the sleeve is axially slanted relative to the hydrodynamic-hydrostatic grinding head; the intersection point of the shaft axis of the sleeve and the central line of a main shaft of a hydrostatic eccentric bushing of the hydrodynamic-hydrostatic grinding head is positioned on the radial plane of the geometric centre of a grinding wheel of the hydrodynamic-hydrostatic grinding head; the outer side of the sleeve can be rotatably positioned on a grinding machine frame; the other end of the swing link is fixedly connected with the sleeve; and the principal axis of the hydrostatic eccentric bushing and the principal axis of the grinding wheel are driven by the sleeve to swing relative to the roller shaft axis around the geometric centre point of the grinding wheel, so the work surface of the grinding wheel is always tangent to the roller surface, the error of camber grinding is reduced, helix lines are prevented from generating on the roller surface, and the accuracy, the quality and the efficiency of the camber grinding are improved.

Description

technical field [0001] The invention relates to a high-order curve automatic grinding device for a full-automatic numerical control roll grinder, in particular to an automatic control system for variable angle of the main shaft of a full-automatic numerical control roll grinder grinding wheel. Background technique [0002] At present, when the roll grinder performs curve grinding on the roll surface of the roll, the surface of the grinding wheel is not tangent to the curve of the roll surface of the roll, so that the grinding surface of the grinding wheel causes errors in the grinding curve of the roll surface during grinding. This error is greater when the curvature of the roll surface or the slope of the slope is greater. At the same time, the edge of the grinding wheel working surface will also form a spiral pattern on the roll surface, which greatly affects the surface of the curved roll. Grinding accuracy, grinding quality and grinding efficiency. Contents of the inve...

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Problems solved by technology

[0002] At present, when the roll grinder performs curve grinding on the roll surface of the roll, the surface of the grinding wheel is not tangent to the curve of the roll surface of the roll, so that the grinding surface of the grinding wheel causes errors in the grinding curve of the roll surface during grinding. This kind of error is greater when the curvature of the roll surface or the slope of the oblique line is greater. At the same time, the edge of the grinding wheel working surface will also form a spiral pattern on the roll surface, which greatly affects the surface of the curved roll. Grinding accuracy, grinding quality and grinding efficiency

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