SU438514A1 - Collet clamp - Google Patents

Description

one

The invention relates to a clockwork and can be used to clamp the crown of the watch when it is started and lowered.

Known collet clamps containing a collet, a tip with a quill and a spring used, for example, in machine tools are known.

However, such clips are either complex or do not satisfy the requirement of high productivity when used to clamp the heads of the winding roller of the watch.

The proposed collet chuck is distinguished by the fact that there is a groove in its quill, into which a fixing knife is inserted, held in a spring, and a ring with a bevel is installed on the stem, pushing the knife apart from it, determined by the working stroke of the collet.

This difference reduces the time required for clamping the winding crown.

The drawing shows the proposed collet clamp, a longitudinal section.

The collet chuck contains a chuck 1 with a brush 2, a spring 3, a tip 4, ninol 5,

rings 6 and 7 fixed to the rod 2, fixing the knife 8, spring 9 and the yoke 10 rotating in the support pieces 11.

The collet chuck works as follows: when you press lock 2, the collet 1 exits tip 4 and, spreading its cams, covers the crown of the watch. The further movement of the shaft 2 causes the ring 6 to push out the knife 8. Having released the quill 5 under the action of the spring 3, it moves forward, clenching the collet 1 with the crown of the crown 1. Unlocking the collet with the crown is done by withdrawing the quill 5 to the left.

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Subject invention

A collet clamp comprising a collet rigidly connected to a pulley, a quill tip and a spring, characterized in that, in order to reduce the clamping time, there is a groove in the pintles of the collet clamp, into which a fixing knife held in the groove by a spring is inserted, and a stem is installed bevel ring, eject knife.