Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features
Patent
1986-06-12
1987-12-22
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
With protective or reliability increasing features
318568, 901 2, 901 9, 901 46, 901 49, G05B 902
Patent
active
047148659
ABSTRACT:
An overload protection device adapted to be secured between a robot arm and a tool, comprises a floating piston (20) within a cylinder (18). Hall effect sensors (124) are spaced around the cylinder wall and mating magnets (40) are spaced around the piston wall. The cylinder is pressurized to axially align the piston with the cylinder and to position each magnet in alignment with a sensor. When an overload occurs involving either the robot arm or the tool, the magnets are moved relative to the sensors causing the sensors to signal for depressurization of the cylinder. An electronic system (FIG. 27) responsive to the Hall effect sensor signals lights an "overload" LED D1 and triggers a timer circuit T1 which generates a timing pulse of fixed duration. During the duration of the timing pulse, the robot is de-energized. A red LED R is illuminated indicating the robot system is not ready to be operated. Also, a solenoid valve L1 is energized, cutting off the pressure to the cylinder.
REFERENCES:
patent: 4099409 (1978-07-01), Edmond
patent: 4209185 (1980-06-01), St. Clair et al.
patent: 4264266 (1981-04-01), Trechsel
patent: 4540331 (1985-09-01), Stanner et al.
patent: 4580941 (1986-04-01), Inaba et al.
Robotic Uni-Coupler Safety Joint, Robotic Accessories Division Process Equipment Company, 4191 US Route 40, Tipp City, Oh. 45371.
Sensoflex Overload Protection Device, Barry Wright Corporation, 700 Pleasant Street, Watertown, Mass. 02172.
Rumble Safety Mount, Rumble Equipment Limited, 25 Baywood Road, Rexdale (Toronto) Ontatio M9V 3Y8.
Uni-Coupler Safety Joint, Robotic Accessories, 4191 U.S. Route 40, Tipp City, Oh.
Safety Gun Mount, Alexander Binzel Corporation, 90 Noll Street, Waukegan, Ill. 60085.
Chin Laurence D.
Domeier Wayne H.
Hiscock Christopher J.
Barry Wright Corporation
Martin David
Mitchell James W.
Shoop Jr. William M.
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