| 摘要 |
PURPOSE:To promote the correctness of positioning, by interlocking a tool head to a movable tube in the periphery of a cylinder to be selected on a lift rail and positioning the tool head with the lift rail to be fixed to the bottom surface of a receiving bed. CONSTITUTION:If a lift base 6 is moved upward to a rise position, a tool head 4 in the left side and a used tool head 4 in the center are moved by operating a shift mechanism respectively with the used tool head 4 to the right side and the tool head 4 in the left side onto a lift rail 7. Next the tool head 4 is lifted with the lift rail 7 against a spring 7f through a cramping member 22 by actuating a cylinder 18 to move upward a movable tube 18b. Then a machine tool, respectively fitting a driving shaft 4b to a coupling 19 of an output shaft 17 and a positioning pin 4e to a positioning member 20 in the bottom surface of a receiving bed 16, connects the output shaft 17 with the driving shaft 4b while positions the tool head 4 to be fixed to the receiving bed 16. Thereafter, the lift base 6 is lowered by a lift motor 6b. |
