Adjusting apparatus for roll threading die head

Details Adjusting apparatus for roll threading die head Adjusting apparatus for roll threading die head

1995-08-15

1997-12-23

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72121, B21B 3126, B21H 304

Patent

active

056996918

ABSTRACT:
An adjusting apparatus for a roll threading die head with a head body having a plurality of threading rollers located on an imaginary circle concentrical to an axis of a cylindrical workpiece to be threaded. There are provided eccentric bearings which rotatably support the corresponding threading rollers and which are rotatable about axes eccentric with respect to the axes of rotation of the respective threading rollers. The eccentric bearings are simultaneously rotated by a rotor about their axes by the same angular displacement.

REFERENCES:
patent: 859642 (1907-04-01), Cummings

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