Feed drive for the bed slide of a machine tool

Details Feed drive for the bed slide of a machine tool Feed drive for the bed slide of a machine tool

1974-11-12

1976-06-08

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

F16H 1904

Patent

active

039615375

ABSTRACT:
In a machine tool a bed-slide movable on a guide-way is driven by a motor mounted on the bed-slide and driving a pair of pinions journalled on the bed-slide and engaging racks provided on the bed of the machine tool in a stationary relationship thereto. Imbalance of the torques driving the pinions might interfere with proper guidance of the bed-slide on the bed. Therefore, the driving torques are perfectly balanced by the provision of a differential transmission connecting the motor to the pinions. Preferably, the differential transmission includes a shaft mounted on the bed-slide for axial displacement and a pair of helical gears of opposite hand fixed to said shaft, each helical gear driving one of said pinions.

REFERENCES:
patent: 1198727 (1916-09-01), Kaddeland
patent: 2187759 (1940-01-01), Seybold
patent: 2779198 (1957-01-01), Buttner
patent: 2922363 (1960-01-01), Dudley
patent: 3031896 (1962-05-01), Walter
patent: 3499336 (1970-03-01), Bianchi
patent: 3789956 (1974-02-01), Neugebauer

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