| 摘要 |
In a computerized numerical control (CNC) (1), an automatic control cir. (3) systematically connects and cooperates with a jig securing cir. (7), which on placing a workpiece on the jig for riveting a limit switch drives a jig-securing solenoid, a position-selecting circuit (8) for controlling X-Y table (2), a circuit (9) for automatically lowering a spin head (5) on completion of the table positioning, a circuit (10) for manually lowering the spin head, a re-drive cir. (11) for next riveting oper., a jig replacemnt drive cir. (13), and a jig release cir. (14).
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