Robot arm having bearing support

Details Robot arm having bearing support Robot arm having bearing support

1984-01-26

1985-10-08

Shaw, Clifford C.

Electric heating

Metal heating

By arc

228 45, 248648, 414719, 901 42, 901 48, B23K 912

Patent

active

045462330

ABSTRACT:
A robot includes a generally cylindrical stationary table adapted to be fixed on a floor, and has an outer peripheral surface formed with a circumferential gear. A rotary table is supported rotatably about the outer peripheral surface of the stationary table. A motor for rotating the rotary table is provided on the rotary table, and is connected to a motor gear meshing with the circumferential gear on the stationary table. An upper arm is supported tiltably on the rotary table, and has an upper end on which a front arm is supported. The front arm carries at its free end a working member, such as a welding torch. Another motor is provided on the upper arm for tilting it. A tension spring is disposed in the stationary table and has one end connected to the lower end of the upper arm, and another end connected to the stationary table at a point thereof about which the rotary table is rotatable. The tension spring serves to reduce the load on the motor which tilts the upper arm.

REFERENCES:
patent: 3840128 (1974-10-01), Swoboda, Jr. et al.
patent: 4024961 (1977-05-01), Stolpe
patent: 4378959 (1983-04-01), Susnjara

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