Device for connecting a tool to a robot arm

Details Device for connecting a tool to a robot arm Device for connecting a tool to a robot arm

1989-01-25

1991-02-19

Bilinsky, Z. R.

Metal working

Plural diverse manufacturing apparatus including means for...

Type of machine

409233, 439362, 901 41, 901 50, 279 8, B23Q 3155, H01R 464

Patent

active

049931326

ABSTRACT:
A tool is to be automatically connected to a robot arm in well-defined angular position such that a sufficiently high torque is transmitted. The robot arm has a conical recess extending over a tool cone. A threaded sleeve is rectilinearly guided in the tool cone and displaceable with respect to a spring. A flange of the threaded sleeve engages an annular shoulder. A threaded spindle extending with a threaded head in a recess is mounted in the robot arm. The threaded spindle first pushes the threaded sleeve back against the action of the spring, such that the spindle engages the threaded sleeve with a well-defined force. Then the threaded head is screwed into the threaded sleeve and through the flange pulls the tool and the robot arm against each other by rectilinear movement. The conical surfaces and of the recess and the tool cone ensure the torque transmission.

REFERENCES:
patent: 3757637 (1973-09-01), Eich et al.
patent: 4412766 (1983-11-01), Eckstein
patent: 4525918 (1985-07-01), Puritz
patent: 4620824 (1986-11-01), Eckstein et al.

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