Multi-station synchronous transmission structure of upper disc of polishing machine

Abstract

The invention belongs to the technical field of surface polishing machining equipment, and particularly relates to a polishing machine upper disc multi-station synchronous transmission structure which comprises a mounting plate, a plurality of spherical grooves are formed in the bottom of the mounting plate and are evenly and annularly distributed, and clamping devices are arranged in the spherical grooves. The clamping device comprises a chuck, a clamping jaw, a screw rod, a first gear, a spherical ring and a reset spring; the spherical ring is movably installed in the spherical groove, and the chuck is rotationally installed at the bottom of the spherical ring. Through the arrangement of the spherical ring, when a workpiece makes contact with the grinding disc, if the bottom of the workpiece is uneven, the workpiece can drive the chuck and the spherical ring to conduct self-adaptive deflection around the sphere center of the spherical ring through the extrusion force of the grinding disc on the workpiece, and therefore the bottom of the workpiece can be better attached to the grinding disc; and in the subsequent grinding process, the grinding uniformity of the bottom of the workpiece is guaranteed.

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