JPS55100883A - Welding apparatus - Google Patents

Abstract

PURPOSE: To provide an even welding spacing of high division accuracy without eccentricity in the plural welding works by fixing the welding works to jigs, intermittently rotating the same at an equal angle, pushing up the welding works and pressure-contacting the same to welding electrodes during stopping of the rotation.

CONSTITUTION: When the jig 1 placed with the welding works 11, 12, 13 is inserted into a jig inserting body 29 and a motor 21a is started, the first shaft 24 revolves, by which the jig inserting body 29 is pushed up, causing the welding works to make pressure contact with welding electrodes. Welding current is then supplied and the first welding is accomplished. Next, the jig inserting body 29 is lowered by a cylindrical cam 33, the welding works and welding electrode separate, a Geneva 25 intermeshes with a Geneva gear to rotate the second shaft 27 by the preset angle, thence the intermeshing is disengaged and the shaft stops. Thence, the 1st shaft 24 starts the second revolution to push up the jig inserting body 29, by which the second welding is accomplished. This welding is executed with continuous repetitions of as much as the head number of the Geneva gear. When the shaft 27 makes one turn, the intended welding is completed, thence a switch 31 fits into the groove of the cam 30, thereby cutting off the power supply to the motor 21a and stopping the motor.

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