| 摘要 |
1,156,294. Tool changes in machine tools. ING. C. OLIVETTI & C. S.p.A. 31 Aug., 1966 [2 Sept., 1965], No. 3382/69. Divided out of 1,156,291. Heading B3B. The subject matter is as described in the parent Specification, but the claims relate to a machine tool with an automatic tool changing device, comprising a frame, a single spindle mounted on the frame for rotation about a first axis, in a non-rotatable sleeve which is slidable along the first axis, a tool storage drum on the frame for rotation about a second axis, the drum being hollow frusto-conical shaped, and having a lateral surface tapered with respect to the second axis at a predetermined angle less than 90 degrees, the second axis intersecting the first axis and being inclined with respect to the first axis an at angle which is the complement of the predetermined angle, a plurality of tool holders arranged in the lateral surface with tools whose axes are perpendicular to the surface, drive means for rotating the drum so as to align the tools with the spindle, first power means for axially displacing the sleeve upon alignment of the selected tool with the spindle, means for coupling the spindle to the tool, and second power means for axially feeding the spindle. |
