Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1986-08-25
1989-01-10
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
901 13, 901 17, 901 41, 318475, 318469, 307120, B25J 900, B23K 912
Patent
active
047975644
ABSTRACT:
An overload detection mechanism for a robot is disclosed, wherein first and second members are relatively urged together by an urging means to urge the axis of the second member toward the Z axis of the first member. The second member is guided in any movements departing from coaxial alignment, and the first member is supported near the end of a robot arm. A tool mount or workpiece mount is connected to the second member. An electrical device is mounted on one of the members, and a device actuator on the other of the members, with the reaction means acting between the members to relatively move the members upon tilting from an X-Y plane normal to the Z axis, or axial thrust applied by the tool mount to the second member. In this manner, an overload of a tool in the tool mount establishes relative movement between the first and second members, so that the electrical device is actuated to change an electrical condition thereof and can be connected to stop movement of the robot.
REFERENCES:
patent: 3145333 (1964-03-01), Pardini et al.
patent: 4016803 (1977-04-01), Soby
patent: 4328621 (1982-05-01), Benjamin
patent: 4442754 (1984-04-01), Jezbera
patent: 4500065 (1985-02-01), Hennekes et al.
patent: 4540869 (1985-09-01), Yasuoka
patent: 4564331 (1986-01-01), Karr-Ake
patent: 4637775 (1987-01-01), Kato
Erickson Tool Company
Logan Sharon D.
Shoop Jr. William M.
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