GRIPPER FOR TOOL HOLDER OF MACHINE TOOL

A gripper is provided for a tool holder (30) of a machine tool which has a magazine which contains several tool holders (30) and from which a selected tool holder (30) can be removed by means of an arm having the gripper (10) and can be inserted in a working position in a rotating receptacle (43) of the machine tool. The tool holder (30) is rotatably mounted in the gripper (10) and also preferably remains in the latter in the working position. Brake means are provided which increase the frictional resistance between a holding part (12) of the gripper (10) and the tool holder during insertion of the tool holder (30) into the rotating receptacle (43). So that standardised tool holders (30) can also be manipulated by the gripper while maintaining the frictional-resistance mechanism, the tool holder (30) is designed as a standardised tool holder (30) with an annular shoulder (35) which is provided on its underside with a first tapered surface (32) narrowing towards the bottom. The holding part (12), with a locating opening (20) for the tool holder (30), is provided with a second tapered surface (39) narrowing towards the bottom. The slopes of the tapered surfaces (32, 39) are the same. Upon insertion into the rotating receptacle (43), the tool holder (30) rests with its first tapered surface (32) under friction on the second tapered surface (39) of the holding part (12) and, in the working position, is lifted from this tapered surface (39) by an air gap (Fig. 4).