Monitor for determining the flow of shielding gas

Details Monitor for determining the flow of shielding gas Monitor for determining the flow of shielding gas

1994-01-27

1995-02-21

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219136, B23K 916

Patent

active

053918525

ABSTRACT:
Devices for monitoring, calibrating and maintaining a manufacturing robot. The first device comprises a reference pin mounted to a first member and a reference aperture located on a second adjacent member wherein the reference pin is inserted into the reference aperture when the two members are at their zero reference location. A second device checks tip alignment by periodically passing the welding tip of a welding torch through a V-shaped notch in a gauging block. The gauging block is electrically conductive and if the tip contacts the sidewalls of the V-shaped notch an electrical circuit is completed signalling the robot controller of tip misalignment. A third device comprises a shielding gas monitor having a closed tube to which the welding torch is applied for expelling shielding gas into the tube. The tube is in fluid communication with a flow gauge that measures gas flow and signals the controller if gas flow is insufficient.

REFERENCES:
patent: 2630513 (1953-03-01), Redmond
patent: 3433925 (1969-03-01), Benfield
patent: 4249062 (1981-02-01), Hozumi et al.
patent: 4583257 (1986-04-01), Bridges et al.
patent: 4935598 (1990-06-01), Ward
patent: 4967370 (1990-10-01), Stern et al.
patent: 5013887 (1991-05-01), Gold
"Robot Repeatability Test Equipment from John Deere", Deere Tech Services, John Deere Road, Moline, Illinois 61265, form E-3592-87-4.
"Industrial Robot Testing Concepts and Method, A Technical Overview", by Michael Wodzinski, Manager of Robot Testing, Selspot Systems, Ltd., Troy, Michigan, received 24 Mar. 1987.

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