| 摘要 |
<p>The chuck has a coupling structure with an end forming a thread area and another end connected with a fixing element. A holding unit (3) has an end forming a thread area that is effectively connected with the thread area of the structure. The fixing element is connected with a holder for anchoring the structure, and a shaft (2) is rotated for driving the holding unit such that the thread sections are movable relative to each other. The holding unit is rotated towards a through hole such that holding claws are moved away from each other or pulled together to release or fix a production tool.</p> |
