Grinding robot

Abstract

A grinding robot of playback system to grind 3-D curved surface is disclosed which is comprised of No. 1 arm being horizontally oscillatable around a vertical axis, No. 2 arm pivoted horizontally oscillatable to the head of said No. 1 arm, fluid cylinder attached vertically to the head of said No. 2 arm, abrasive tool attached freely ascendable/descendable and turnable to the bottom of said fluid cylinder, workpiece-fixing table arranged freely turnable and inclineable from horizontal to vertical below said abrasive tool, and designed to make it possible to trace the 3-D curved-surface profile by constantly pressing down the workpiece perpendicularly toward the same by the action of said fluid cylinder and to perform the 3-D curved-surface's automatic grinding-work with the use of 2-D positional data and also to playback-control a retirement locus of the abrasive tool when retiring it temporarily from work area.

Dependencies are inferred from the claim text.