| 摘要 |
PURPOSE:To allow short cut rotation and high speed indexing, by rotating together with a tool magazine a feed back shaft using a hydraulic pressure to follow a command input shaft which is rotated by preindexing. CONSTITUTION:The command inputting shaft 38 is rotated by a prescribed angle and stopped in response to the prescribed index command by solenoid valves 60-65 of a digital cylinder 39. Then a solenoid valve 45 is opened to allow an hydraulic oil to flow from a hydraulic oil supply path 48 through a hydraulic oil supply port 46 into a groove 52, then into a groove 53 via an oil path 56, and from a hydraulic oil discharge outlet 47 via a hydraulic discharge outlet 50 into the solenoid valve 45 again. As a result, a hydraulic motor 27 is operated, a chain 22 and a timing belt 19 are moved, and the feed back shaft 32 is rotated an indexed angle to close the oil path. The oil path faces the shaft with an angle of 180 deg. therebetween. |
