| 摘要 |
The subject matter of the present invention is a dividing apparatus or indexing attachment for a program controlled machine tool, comprising a housing (1) including clamping means (3, 4) for attachment to a machine part, a dividing spindle (5) mounted within the housing (1) and including a work holder (8, 9) and a clamping assembly (15), and a spindle drive means including a reduction gearing, in which for achieving fully automatic sequences of operation in the manufacture of various workpieces, an opto-electronic angle measuring unit (24) and a releasable clamping means (31 to 36) are associated with the dividing spindle (5), wherein the reduction gearing includes two cylindrical gears (29, 30) having parallel axes and jointly meshing with a pinion (27) mounted on the motor shaft and further includes two pinions (46, 47) mounted on the intermediate shafts (40, 41) of said cylindrical gears, the two latter pinions meshing with the spindle drive gear (10). |
