On the lathe, the shape and size of the blank are changed by the rotating motion of the workpiece and the linear motion of the tool or the curved motion, and it is processed to meet the requirements of the drawings.
CNC precision parts machining mainly includes ultra-precision turning, mirror grinding and grinding.
The primary premise of CNC precision parts machining is the accuracy of the process benchmark. The benchmark on the mechanical drawings is represented by A capital letter A, B, C and D with A specific ring benchmark symbol. When the benchmark symbol aligns with the surface and the surface extension line or the surface size limit, it is represented by the surface as the benchmark When the reference symbol is aligned with the size line, it means that it is based on the solid center line marked with the size as the reference point.
Assembly datum refers to the precision used to determine the position of a part in a component or product during assembly. Measurement datum refers to the specification for the size and position of the machined surface to be measured during the inspection of the part. Positioning datum refers to the datum used for positioning the workpiece in the machine tool or fixture during processing.
The process standard of CNC machining for precision parts is the premise to ensure the production of high-quality parts. SZBJ is a professional precision machining manufacturer with over 10 years' experience. Now SZBJ has developed into an integrated manufacturing company for plastic and metal CNC machining, batch processing and molds and assembly.
SZBJ has an elite technical team with rich theoretical knowledge and practical experience in CNC machining, advanced processing equipment, perfect quality control systems.
