| 摘要 |
FIELD: metal cutting processes, working of printed circuit boards. ^ SUBSTANCE: chuck includes body for placing parts of chuck, clamp and holder embracing body with possibility of up-down relative motion. In order to simplify design and to provide maximally quick change of tool, chuck is provided with sleeve having cone opening for clamp and with screw screwed-in to threaded hole on non-working end of clamp. There are grooves in sleeve and in screw head for mounting pushers. In upper part of chuck in grooves of screw head rocker arms are arranged; said rocker arms have in central zone upper and lower stops arranged in edges of rocker arms and converging to center of screw head. Lower surface of screw head is in the form of cone converging upward surface. Under head of screw between pushers on sleeve spacers with cone upper surfaces are mounted for sliding on lower cone surface of screw head. ^ EFFECT: simplified design of chuck providing maximally possible quick change of tool. ^ 6 dwg |
