| 摘要 |
PURPOSE:To enable the action of intermittent driving to enhance stopping accuracy with no necessity of using photoelectron or the like, by providing gear mechanisms, which perform size setting or the like, in both cam mechanisms in a machine part so as to enable correction to be performed each time. CONSTITUTION:If both clutches 4a, 4b are successively turned on, opposed gears of an inverting gear mechanism 5 are respectively connected to a main spindle 3, and the opposed gear, having a turning effect opposite to each other, generates brake action stopping the main spindle 3. While the clutches 4a, 4b are turned on and off by a signal of an encoder 20 performing brake action and its release, further a preset transfer feed width, brake action time, etc., are controlled by each output signal, and before cam mechanisms 7, 7' are mechanically stopped by pawls 9a, 9b of size setting mechanisms 13, 13' or the like, a main spindle is decelerated moderating its shook. Next after actuating one setting mechanism 13 by a transfer feed width, when the corresponding mechanism 7 is actuated, an error is generated, but also the mechanism 7' in the opposite side performs inversely proportional action generating an error, and the mechanism 13', being movable, is corrected to the preset width by moving the mechanism 13.
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