Apparatus for actuating the clamping jaws of a chuck

Details Apparatus for actuating the clamping jaws of a chuck Apparatus for actuating the clamping jaws of a chuck

1988-10-28

1990-08-28

Bilinsky, Z. R.

Turning

Lathe

Headstock

279 1H, 279112, B23B 3126

Patent

active

049515357

ABSTRACT:
An apparatus for actuating clamping jaws of a chuck via an adjustment member that, to produce a rotational adjustment movement, is drivingly connected with an actuator formed from a reversible drive motor and a subsequent gear mechanism that is drivingly connected to the output side of the motor via a torque coupling. The gear mechanism is embodied as a two-stage synchronized gear in the form of a transmission gear drive having central gears that are rotatably mounted within one another and are drivingly connected via a step-type gearing to a drive member of the chuck and to the adjustment member. The central gears are drivingly and synchronously coupled via two transmission gears fixedly disposed on a transmission shaft that is rotatable about the central gears and engages the torque coupling in a load-dependent manner. The reduction stages of the transmission gear drive correspond to transmission stages of the step-type gearing.

REFERENCES:
patent: 2006621 (1935-07-01), Berg
patent: 2186504 (1940-01-01), Sloan et al.
patent: 4758006 (1988-07-01), Hiestand

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