Patent ID: 9133867
Filing Date: 2015-09-15
Classification: B23B,B25B,F16B,Y10T

Abstract:
1. A linear mechanical quick release fastener for locking and unlocking a compatible clamping device on automatic precision machine tools, the fastener comprising: a bottom part having at least two locking elements formed integrally in one piece one after another and in a raised manner along an axis at right angles to a clamping direction of a self-centering chuck on a plane and said bottom part having two base jaws formed integrally in one piece on a lower plane, a central, continuous threaded opening for receiving a threaded spindle and a threaded hole on an end face of the plane and the lower plane for receiving a clamping bolt and a screw element; and a top part having a top part lower plane with at least two recesses which are recessed one after another along an axis at right angles to the clamping direction: each of the recesses forming a counterpiece for receiving one of the locking elements of the bottom part, wherein one of said recesses is connected on an open front side to a mounting area, which is recessed continuously and another of said recesses is open with an end face on an end of the top part lower plane and has an upper plane, which can receive any compatible clamping device; wherein the mounting area of one recess of the top part mounts onto one of the locking elements of the bottom part, and the two locking elements of the bottom part snap into the recesses of the top part by a linear displacement of the top part and are to be locked with the clamping bolt arranged at the bottom part on the front side extending to a cutout recessed shoulder of a front side of the top part and with the screw element thereby preventing reverse linear displacement of the top part with respect to the bottom part and are unlocked by a reverse procedure, said mounting area and said one of said recesses forming a continuous recess, said continuous recess having a shape that is different from a shape of said another one of said recesses.