Spring welding method on the aperture grill and welding device for the rear attachment spring of the aperture grill

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring welding method on an aperture grill and a welding device for a back attachment spring of an aperture grill, wherein four springs are connected to an aperture grill without the relative position of the pin balls of each spring without being welded simultaneously. In order to weld with high precision, the gap between the surface of the grill 107 and the inner surface of the panel portion 501 is always constant at any place with the aperture grill 1 attached to the panel 5. The pin hole 307 is indexed, and the spring 3 is first applied to the spring holder 111 of the lower and horizontal members 103 and the left and right longitudinal members 105 so that the pin hole 307 is located at the indexed position. Welded and then apertured so that the relative positions of the pin holes 307 of the three springs 3 welded therein coincide with the arrangement of the pins 505 of the skirt portion 503 on the lower and left and right sides of the panel 5. In the state of positioning (1), the remaining one spring (3) is indexed To determine a position to pingong 307 located in places that were welded to the spring holder 111 in the situation member 103.