Spline screw autochanger

Details Spline screw autochanger Spline screw autochanger

1992-07-27

1993-06-15

Briggs, William

Tool changing

Including machine tool or component

414729, 483901, 901 30, 901 41, B23Q 3155, B25J 1504

Patent

active

052193187

ABSTRACT:
A captured nut member is located within a tool interface assembly and being actuated by a spline screw member driven by a robot end effector. The nut member lowers and rises depending upon the directional rotation of the coupling assembly. The captured nut member further includes two winged segments which project outwardly in diametrically opposite directions so as to engage and disengage a clamping surface in the form of a chamfered notch respectively provided on the upper surface of a pair of parallel forwardly extending arm members of a bifurcated tool stowage holster which is adapted to hold and store a robotic tool including its end effector interface when not in use. A forward and backward motion of the robot end effector operates to insert and remove the tool from the holster.

REFERENCES:
patent: 4249426 (1981-02-01), Erikson et al.
patent: 4474515 (1984-08-01), Pitzer
patent: 4846614 (1989-07-01), Steinbock
patent: 4875266 (1989-08-01), Batten
patent: 4913617 (1990-04-01), Nicholson
patent: 4980963 (1991-01-01), Dinse
patent: 4990044 (1991-02-01), Kimak
patent: 5044063 (1991-09-01), Voellmer

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