Patent ID: 7108465
Filing Date: 2006-09-19
Classification: B23B,B23Q,Y10T

Abstract:
1. A jig plate gripped by a main spindle of a lathe-type machine tool, comprising: a main body provided with a fixing surface to be detachably fixed to an end surface of a work, and an inverse tapered portion provided to an opposite side of the fixing surface and diverging in a direction away from the fixing surface of the main body and gripped by a chuck of the main spindle, wherein the inverse tapered portion comprises a plurality of notches arranged to pass therethrough respective chuck claws included in the main spindle, wherein when the chuck claws are passed through the notches and relative rotation is provided between the main spindle and the inverse tapered portion, the main body is affixed to the spindle via an engagement between the inverse tapered portion and the chuck claws caused by the relative rotation.