GEAR FOR RESISTANCE SPOT WELDING Russian patent published in 1996 - IPC

FIELD: welding equipment. SUBSTANCE: invention refers to field of welding equipment used in automated robot-based lines and complexes to manufacture complex large-sized articles such as cabs and bodies of automobiles. Gear is provided with levers 4, 5 and 6 and rests 16 and 17 limiting turns of levers 4 and 5. Lever 4 carries welding tongs 7 and levers 5, 6 - locating arms-clamps 8, 9. One of levers carrying locating arms -clamps 8, 9 has common turn axle with lever 4. Lever 4 has lesser turn angle, is fitted with pin 10 made fast to it. Second lever 5 is joined to pneumatic cylinder 13, it has groove 11 made along shape of circumference arc with center matching center of turn axle of these levers. Free end of pin 10 is placed into specified groove 11. EFFECT: enhanced functional reliability and efficiency. 4 dwg