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US 10,124,456 B2Granted
Rotary table
AssigneeDoosan Machine Tools Co., Ltd.
InventorJong Bong Kim
Life of this patent
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Abstract
A rotary table according to the exemplary embodiment of the present disclosure includes a piston 70 having a first tapered portion 72, and a clamp 80 having a second tapered portion 82. When the first tapered portion 72 comes into close contact with the second tapered portion 82 by a movement of the piston 70, a pallet base 30 is fixed to a table base 10, and thus the pallet base 30 is rotated, thereby maintaining a preset posture.
Claims5
A rotary table comprising:
- a table base which has a worm shaft;
- a center shaft which is rotatably disposed in the table base;
- a pallet base which is installed on the center shaft, and has a worm wheel gear-engaged with the worm shaft;
- a bearing housing which is installed in the table base, and has a first flow path and a second flow path;
- a piston which is installed at an outer circumferential edge of the bearing housing, has a first tapered portion formed at an end portion of the piston, and is moved by hydraulic pressure provided to the first flow path and the second flow path;
- and
- a clamp which is installed in the pallet base, and has a second tapered portion that is formed at an inner circumferential edge of the clamp and repeatedly comes into close contact with the first tapered portion of the piston when the piston reciprocally moves.
4 more elements
Dependencies are inferred from the claim text.