Method and devices for obtaining an even transition between the profiled surfaces of two profiled bars united into a longitudinal bar, and an application of this method

摘要

In a method for obtaining an even transition between the profiled surfaces of two profiled bars (2, 3) united into a longitudinal bar (10), the joint (1) between the profiled bars (2, 3) is machined by means of a stock-removing tool (11) moving in the longitudinal direction of the longitudinal bar (10), the longitudinal bar (10) and the guides (22) of the tool (11), for the purpose of obtaining an even transition between the profiled surfaces, being mutually secured in a position in which the distance between the longitudinal axis of the longitudinal bar (10) and the path of the tool (11) is smallest in the region of the joint (1) and increases continuously with increasing distance from the joint (1). The device has in one case fixable stops (15, 16) adjustable transversely to the longitudinal direction of the longitudinal bar (10) and acting on the longitudinal bar (10) and intended for the forced bending of the longitudinal bar (10) in a curve shape. At the same time or alternatively, it has an adjusting mechanism (28) for the controllable bending and fixing of the guides (22) of the tool holder (17, 18), which are intended for displacing the tool (11) along the longitudinal bar (10). A particular application of the method relates to the machining of weld locations on head-to-head welded rails for tracks. IMAGE