Holder for orbitable tool

Details Holder for orbitable tool Holder for orbitable tool

1999-03-25

2000-04-25

Pitts, Andrea L.

Turning

Radially moving rotating tool inside bore

87 13, 87 14, 408181, B23B 4100

Patent

active

060530820

ABSTRACT:
A tool holder has a housing rotatable about a holder axis, a motor mounted on the housing and having an output rotatable about a motor axis transverse to the holder axis, and a rotation sensor mounted on the housing and coupled coaxially to the motor. A drive wheel mounted on the rotary motor output is rotatable by the motor about the motor axis and is connected to respective wheels of a pair of shafts each having a screwthread. The screwthreads are of opposite hand and respective nuts threaded on the shafts so that rotation of the motor output synchronously rotates the shafts and oppositely displaces the nuts. A tool-holding slide displaceable transversely of the axis on the plate is fixed to the nut of one of the shafts and a counterweight displaceable transversely of the axis on the plate is coupled to the nut of the other shaft. A controller inductively coupled to the motor and rotation sensor electrically powers the motor in accordance with the position of the motor output as detected by the sensor to oppositely synchronously displace the slide and counterweight.

REFERENCES:
patent: 3710659 (1973-01-01), Pagella
patent: 4637285 (1987-01-01), Mizonguchi
patent: 4899628 (1990-02-01), Seichter et al.
patent: 5012710 (1991-05-01), D'Andrea et al.
patent: 5909986 (1999-06-01), Kaiser

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