Abstract: A device for assembling and disassembling a tool with a tool holder, such as particularly a mandrel. The device is essentially constituted by a support frame (4) provided with a unit (5) for receiving and holding a tool holder (3), elements (6 and 7) for ensleeving and extracting a tool (2) coacting with an induction heating unit (8) for the portion (3′) of the tool holder (3) adapted to receive the tool (2) by ensleeving.

Abstract: A hollow cone device for gripping attachments, essentially constituted by a bit-carrying socket (1) for blocking the member (2) to be fixed, prolonged by a securement element (3) in a support (4), such as a spindle or the like. The securement element is in the form of a screw-threaded element connected to the socket (1) and screwed into the support (4). The bit-carrying socket (1) comprises two radial recesses extending perpendicularly to its axis and in which are mounted two gripping bits (5) actuated simultaneously, to slide radially in a symmetrical manner, by a screw (6) maintained in translation by a stud screw (7) co-acting with a circular throat provided in the central region of the screw (6). An ejector (12) is guided in translation in a bore in the bit-carrying socket (1) and actuated by symmetrical pressure of the bits (5). The device also includes an element (15) for relative angular displacement between the bit-carrying socket (1) and the screw-threaded element.

Abstract: The present invention concerns a mounting device with conical shank, particularly a 7/24ths cone, for cone-to-surface application for attachments, tool holders and tools, essentially constituted by a cone (1) for introduction in the spindle (2), by a front part (3) centered in the cone (1) and provided with a flange (4) for application against the face of the spindle (2), by a knob (5) for assembly of the cone (1) in the front part (3) and by an elastic pressure unit (6) of the cone (1) in the spindle (2) in locking position, mounted in compression between the said cone (1) and the front part (3), characterized in that it is provided with an elastically deformable means (7) applying the front part (3) forcibly in the cone (1), in locking position.

Abstract: The present invention concerns a mounting device with conical shank, particularly a 7/24ths cone, for cone-to-surface application for attachments, toolholders and tools, essentially constituted by a cone (1) for mounting in a spindle (2), by a front part (3) centered in the cone (1) and provided with a flange (4) for application via its rear face against the front face of the spindle (2), and by a knob (5) for assembly of the cone (1) and the front part (3) by means of an intermediate threaded element (6), on which bears an elastic unit (7) formed of Belleville washers intended to apply the cone (1) in the spindle (2) in locking position and mounted in compression between the said cone (1) and the front part (3), characterized in that it is provided with a device (8) for locking of the mutual position of the cone (1) and the front part (3), in mounting position in the spindle (2) with application of the flange (4) against the face of the said spindle (2), by gripping at least two balls (9) between the said co