| 摘要 |
PURPOSE:To index and rotate a turret head and to cause optional jump-index to be possible by utilizing the main shaft driving motor in a device. CONSTITUTION:Indexing rotation for a turret head 4 is carried out by an optional pitch at the condition having been restored to the original position and moreover its drive is acheived by main shaft driving motor. Switching the power transmission for the indexing drive of the turret head 4 and main shaft drive, locking or unlocking for a nock pin 37 positioning the turret head 4 and clamp or unclamp-operation of a clamper 46 are carried out by a link mechanism operating in relation to back and forth movement of the shaft head body. Consequently, actuaters except a main shaft driving motor become unnecessary, and its construction may be simplified. |
