Drive apparatus for an industrial robot

Details Drive apparatus for an industrial robot Drive apparatus for an industrial robot

1982-02-05

1984-01-03

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318 8, 414 1, G05B 1942

Patent

active

044244738

ABSTRACT:
An industrial robot is disclosed, which utilizes three like drive units for controlling movement about the three primary axes of rotation. Each drive unit comprises a pair of electrical stepping motors, which act through a differential gear train to control movement about the associated axis. Preferably, the number of teeth in the output drive gear of one motor differs from the number of teeth in the output drive gear of the other motor, whereby both motors may be operated at the same rotational speed to permit accurately controllable relative movement at a relatively slow speed, and one motor may be de-energized to achieve high speed operation.

REFERENCES:
patent: 1667718 (1928-05-01), Connell
patent: 1720018 (1929-07-01), Tubbs
patent: 2417198 (1947-03-01), Hindmarch
patent: 2459253 (1949-01-01), Tyrner
patent: 2785369 (1957-03-01), Ligh
patent: 3146386 (1964-08-01), Gerber
patent: 3817403 (1974-06-01), Glachet et al.
patent: 4062455 (1977-12-01), Flatau
patent: 4289996 (1981-09-01), Barnes et al.
patent: 4300198 (1981-11-01), Davini

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