Friction welding machine head and shaft of York

摘要

The present invention relates to a friction welding device of a yoke head and a shaft pipe in which a hollow shaft pipe coupling surface provided with a spline is welded with frictional heat to the coupling surface and an inner peripheral surface of the yoke head abutted against each other such that not only can coupling between the shaft pipe formed in a hollow shape and the yoke head be facilitated, but a moving means continuously pressurizes the shaft pipe with the yoke head to increase a coupling force between the yoke head and the shaft pipe by a moving means while the yoke head and the shaft pipe are being welded, and as the shaft pipe is coupled to the yoke head by using frictional heat, changes in dimension of the welded yoke and the like can be prevented from being generated.