Wire joining device

Details Wire joining device Wire joining device

1992-04-14

1994-02-08

Jones, David

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

7245315, 7245316, 29235, 2924356, B23P 1100

Patent

active

052840441

ABSTRACT:
A hydraulic wire joining device for connecting at least two wires. The device includes a hydraulic cylinder for clamping a wedge or spacer over at least two wires, and a work fixture for transmitting an cylinder force to the wedge. The cylinder is a two-stage type of cylinder, which has first and second coaxial cylinders and respective first and second coaxial pistons respectively forming the first and second chambers and third and fourth chambers. The first piston has passage means which has a pressure valve and which connects the first and third chambers upon opening of the pressure valve only at a second stage higher fluid pressure level, whereby a two-stage two-level force can be applied to the wedge for initial crimping and final crimping of the wedge.

REFERENCES:
patent: 3937050 (1976-02-01), Nicholson

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