Screw actuator for high-precision translator devices

Details Screw actuator for high-precision translator devices Screw actuator for high-precision translator devices

1987-10-14

1989-03-21

Weidenfeld, Gil

Gear cutting, milling, or planing

Milling

With means to precisely reposition work

511658, 51240R, 108143, 409219, B23Q 534

Patent

active

048138304

ABSTRACT:
In an actuator, a carriage coupled to an item to be displaced with a translatory movement comprises a follower element which defines contact surfaces engaged against the flanks of the thread of a micrometric screw. The contact surfaces co-operate with the thread of the screw only over a small angular portion thereof. The follower element of the carriage is held on the thread of the screw by resilient thrust means acting on the carriage so as to urge it pivotally about an axis (X--X) which is parallel to its direction of translatory movement, being prevented from moving in all the other degrees of freedom. The actuator is especially adapted for use in translator devices in which the level of precision is of the order of a micrometer.

REFERENCES:
patent: 1213300 (1917-01-01), Todd

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