Features assembly platform processing technology: a first machining datum: assembly platform in parts machining process, as the surface of the positioning reference should first be processed out of order as soon as possible to provide fine benchmark for subsequent processing steps. Called "benchmarks first." 2, dividing processing stages: processing high surface quality requirements are divided into processing stage, can generally be divided into roughing, semi-finishing and finishing three phases. Mainly to ensure processing quality; conducive to the rational use of equipment; easy to arrange a heat treatment step; and found to facilitate the blank defects. 3, the first hole behind: For square box, brackets and connecting rods and other parts should be processed after the plane machining holes. This hole can be processed in planar positioning to ensure that the plane and the hole position accuracy, but to facilitate the processing of a plane to bring the hole. 4, finishing the main surface (such as honing, grinding, grinding, etc.), should be placed in the final stages of the process route to avoid finishing the surface, due to inter-process transport and installation damage.