| 摘要 |
<p>A clamp device (11) is configured in such a manner that first and second coiled springs (22, 23) are rotated by a stepping motor (24) to linearly move first and second hand members (32, 33), causing both the first and second hand members (32, 33) to clamp a workpiece (W). The clamp device (11) is provided with a magnetic sensor (34) for detecting the contraction of the first and second coiled springs (22, 23) caused by the contact of the first and second hand members (32, 33) with the workpiece (W). In response to the detection of the contraction of the first and second coiled springs (22, 23) by the magnetic sensor (34), a control device (40) for the stepping motor (24) performs control in which the stepping motor (24) is rotated by a predetermined number of times and then stopped.</p> |
