Part of the process is a direct change in the appearance of raw materials (shape, size, location, performance), making it a semi-finished products or finished product process, this process we call the process, that is, parts of the processing technology benchmark , The processing of precision parts of the process more complex.
Precision parts processing technology can be divided according to different processes: casting, forging, stamping, welding, heat treatment, machining, assembly, and so on. Precision parts processing process generally refers to the entire part of the NC machining and machine assembly process of the general term, and other such as cleaning, inspection, equipment maintenance, oil seals, etc. are just auxiliary process Bale. Turning the way to change the surface properties of raw materials or semi-finished products, this process we call the CNC machining process, precision parts processing industry, CNC machining process is one of the most important process.
(1) positioning reference, in the CNC lathe for processing lathe or fixture used in the positioning of the benchmark.
(2) the measurement datum, which is usually referred to as the standard of size or position to be observed at the time of inspection.
(3) the assembly of the benchmark, this benchmark we usually refer to the assembly process when the parts of the standard position.