Fixed-inclination annular circular-arc grinding wheel for grinding spherical surface and compensation method

Abstract

The application relates to the technical field of precision machining, and provides a fixed-inclination annular circular-arc grinding wheel grinding spherical surface and a compensation method, which comprises the following steps: arranging a cylindrical workpiece to be machined on a rotary table to make the cylindrical workpiece rotate around the axis of the cylindrical workpiece, arranging an annular circular-arc grinding wheel on a main shaft of a machine tool, and arranging the axis of the main shaft and the axis of the cylindrical workpiece to be at an angle; wherein the motion track of the main shaft is controlled to make the machining surface of the annular circular-arc grinding wheel contact the end surface of the cylindrical workpiece, so that the end surface of the cylindrical workpiece is ground into a spherical surface; after one grinding process is completed, the spherical workpiece machined is detected in terms of surface shape precision, the position deviation of the annular circular-arc grinding wheel is determined according to the detected surface shape error; the motion track of the main shaft is compensated and corrected according to the position deviation, and the next grinding process is carried out. In this way, the forces of all contact positions in the machining process are uniform, the workpiece material is uniformly removed, and then the machining consistency and stability are improved, and the precision and tool durability are improved.

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