Chuck Mechanism, Pawl Material, and Lathe
AssigneeSynthe Tech Inc.
InventorKazuhide Kobayasi
Life of this patent
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Abstract
A chuck mechanism for grasping a work comprises a stage, a master jaw provided on the stage, and a soft jaw fixed to the master jaw, in which a plurality of serrations extending in two different directions are formed on the abutting surfaces of master and soft jaws, respectively. Since the serrations are fitted, there is no such a risk that the soft jaw is displaced in the direction of the surface abutting against the master jaw. Consequently, reproducibility of fixing of the soft jaw becomes very high and a chuck mechanism having a soft jaw having a high reproducibility of fixing thereof can be provided.
Claims15
A chuck mechanism which grips a workpiece, comprising:
- a stage which is rotatable about a center of a predetermined axis of rotation;
- a plurality of master jaws which are provided on the stage, the master jaws being movable in directions directed toward the axis of rotation of the stage and each of the master jaws having a master side serration surface formed with a plurality of first serrations extending in a first direction and a plurality of second serrations extending in a second direction different from the first direction;
- and
- a plurality of soft jaws which are fixed to the master side serration surfaces of the master jaws to grip the workpiece, respectively, each of the soft jaws having a soft side serration surface arranged to face the master side serration surface and formed with third serrations and fourth serrations, the third serrations extending in the first direction to be fitted to the first serrations, and the fourth serrations extending in the second direction to be fitted to the second serrations.
A jaw member usable for a chuck mechanism which grips a workpiece, the jaw member comprising:
- a plurality of master jaws each of which has a master side serration surface formed with a plurality of first serrations extending in a first direction and a plurality of second serrations extending in a second direction different from the first direction;
- and
- a plurality of soft jaws which are fixed to the master side serration surfaces of the master jaws respectively to grip the workpiece, each of the soft jaws having a soft side serration surface arranged to face the master side serration surface and formed with third serrations and fourth serrations, the third serrations extending in the first direction to be fitted to the first serrations, and the fourth serrations extending in the second direction to be fitted to the second serrations.
Dependencies are inferred from the claim text.