Patent ID: 7549569
Filing Date: 2009-06-23
Classification: B23K,H01L,Y10S

Abstract:
1. Method for controlling a clamp gap between clamping arms of a wire clamp, comprising the steps of: providing a linear motor; using the linear motor to generate an actuation force in a first direction for moving the clamping arms relative to each other to open the wire clamp; using the linear motor to generate an actuation force in a second direction for moving the clamping arms relative to each other to close the wire clamp; positioning a resilient member in contact with the linear motor such that the actuation force generated in the first direction creates a force line which passes through the resilient member and acts directly upon the resilient member to flex the resilient member to an extent that is proportional to the clamp gap; and controlling the clamp gap by adjusting a magnitude of the actuation force generated in the first direction according to a predetermined relationship between the actuation forces and the clamp gap.