Device for the centering and clamping of pipe workpieces

Details Device for the centering and clamping of pipe workpieces Device for the centering and clamping of pipe workpieces

1990-08-02

1991-10-01

Heinrich, Samuel M.

Metal fusion bonding

Including means to force or clamp work portions together...

Comprising tube aligning means

228 493, B23K 37053

Patent

active

050526090

ABSTRACT:
The device for the centering and clamping of pipe workpieces to be welded to another comprises clamping units which have clamping grooves opening outwards in a wedge-shaped manner and each containing a row of clamping members. Their groove walls are formed by annular parts which are movable axially relative to one another, are arranged releasably on a holding body and can be subjected to a force in the direction towards one another. The annular parts limiting a clamping groove are designed as elements separate from the annular parts limiting the other clamping grooves. The annular parts of each clamping unit are connected to one another movably in the axial direction, and there are hollow-cylindrical spacer pieces between the clamping units, one of which defines the welding region.

REFERENCES:
patent: 3095844 (1963-07-01), Thielsch
patent: 4605151 (1986-08-01), Brown
patent: 4867368 (1989-09-01), Tesch

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