Processing technology of bar-shaped adaptor

The invention relates to a processing technology of a bar-shaped adaptor. The processing technology comprises the following steps: cutting round bars into single pieces, and carrying out heat treatment; carrying out facing, and punching a center hole; carrying out rough cylindrical turning; rough boring two deep holes by adopting a center drill comprising a drill point; turning around the product to clamp the right end of the product, and carrying out rough cylindrical turning; rough boring two holes; carrying out stabilizing treatment; carrying out finish cylindrical turning; punching two precise bores, and guaranteeing the chamfer of thread turning; guaranteeing the chamfer of slot turning; guaranteeing the thread length of thread turning; turning around the product, guaranteeing the total length of facing, and carrying out finish cylindrical turning; punching two precise bores, and guaranteeing the thread chamfer; guaranteeing the chamfer of slot turning; milling the four sides of a B-B part till a standard size is realized; removing sharp points and burr, and smoothening sharp edges. According to the processing technology of the bar-shaped adaptor, rough cylindrical turning is firstly carried out, the center hole is punched, and then finish machining is further carried out, so as to achieve the design size requirement, so that the requirement on the final surface roughness of the product is effectively guaranteed, deformation of the product is effectively reduced, and the production quality of the product is further effectively improved; the processing technology is simple and easy to operate.