Automatic welding machine with three-dimensional cam driven moti

Details Automatic welding machine with three-dimensional cam driven moti Automatic welding machine with three-dimensional cam driven moti

1978-09-06

1980-08-26

Envall, Jr., Roy N.

Electric heating

Metal heating

By arc

2191241, 21912433, 228 32, B23K 912

Patent

active

042197236

ABSTRACT:
An automatic welding machine of a type, in which a welding torch is subjected to predetermined three-dimensional locus motions by means of three profile cams for controlling movement of the torch in the left-and-right, up-and-down, and front-and-back directions in accordance with predetermined programs set in the machine, the machine being constructed with (a) a driving section including a frame to support component members thereon, a shaft rotatably held on the frame, an electric motor axially fitted at one end of the shaft, a plurality of profile cams fixedly provided on the other end part of the shaft so as to be rotated therewith, the cams being arranged with an appropriate space interval between them, and cam follower members corresponding in number to the profile cams and intimately contacted with the cams to move in accordance with rotational movement of the cams; and (b) a driven section including a frame to support component members thereon, a plurality of movable members in the left-and-right, up-and-down, and front-and-back directions in pursuance of driving force transmitted from corresponding profile cams via the cam followers in the driving section, power transmission means to transmit the driving force from each of the cam follower members in the driving section to each of the movable members in the designated direction, a welding torch slidably fitted in one of the movable member to perform up-and-down movement, the torch being fitted through a rotatable cylindrical member in the movable member, and an electric motor to tilt the torch through a linking means extended between the motor and the rotatable cylindrical member.

REFERENCES:
patent: 1521361 (1924-12-01), Davis
patent: 2438262 (1948-03-01), Watkin
patent: 3609289 (1971-09-01), Hathaway
patent: 3665148 (1972-05-01), Yasenchak et al.
patent: 3675841 (1972-07-01), Gutlhuber et al.
patent: 3777581 (1973-12-01), Sartori
patent: 3938722 (1976-02-01), Kelly et al.

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