Shenzhen CNC Machining positioning benchmark requirements

Shenzhen CNC machining has a positioning reference in every machining process, which ensures that the machining program can run accurately. Therefore, the positioning reference in CNC machining is the most important step. Only by doing this well can the error of the workpiece be basically guaranteed.

Positioning datum machining workpiece positioning datum, called positioning datum. As the surface of the positioning datum, only the blank positioning surface of the coarse datum is selected in the first step of the original surface. In each process the machined surface is used as the positioning datum, using the positioning surface of the fine datum. Parts diagram is used to determine the reference point, line, plane, called design reference. Precision machining of shaft sleeve parts, the outer circle and inner hole are designed as part of the reference shaft, the design of the end face is B, C datum, and the outer circle of the shaft of the reference hole is radially beating.

Measurement Benchmark A reference for the size and position of the finished surface, called the measurement reference. Inner bore shaft cylinder radial runout measurement reference, checking the length dimension L, the measurement reference for the surface. The process of using a reference during the machining and assembly of precision machined parts, called the reference. The benchmark testing process is divided into different according to the use of assembly reference, measurement reference and position reference. Assembly Benchmark A reference used to determine the position of components of a component or product during assembly, called the assembly reference.