Adjustably timed thread roll machine

Details Adjustably timed thread roll machine Adjustably timed thread roll machine

1978-10-05

1980-04-01

Mehr, Milton S.

Metal deforming

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

During rotation of work

B21H 304

Patent

active

041955080

ABSTRACT:
A thread rolling machine is disclosed wherein a continuously adjustable timing screw is used to adjust the phase of the feed of a workpiece relative to the instantaneous position of a rotary die cooperating with a stationary die. This timing substantially eliminates any mismatch of thread rolling by the two dies. The rotatable timing screw adjusts the peripheral position of a cam follower relative to a feed cam by moving the fulcrum point of a bell crank lever on which the cam follower is carried. Rotation of the timing screw adjusts the peripheral position of the cam follower relative to the feed cam. The above description is merely one form of the invention and is not to be construed as limiting on the scope of the invention.

REFERENCES:
patent: 1594657 (1926-08-01), Burns
patent: 2923186 (1960-02-01), Pierson
patent: 3872700 (1975-03-01), Matej
patent: 4088045 (1978-05-01), Grohoshi

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