1) When forming high-precision workpieces, use a dial indicator to detect the tools on the spindle, so that the static runout is controlled within 3μm, and the tool holder system needs to be re-clamped or replaced if necessary;
2) Whether it is a part that is processed for the first time or a part that is repeatedly processed periodically, it must be checked and checked one by one according to the drawing process, program and tool adjustment card before processing, especially about the tools in the program. For length compensation and radius compensation, make trial cutting if necessary;
3) During single-stage trial cutting, the quick override switch must be set to a lower gear;
4) When each knife is used for the first time, it must be verified whether its actual length is consistent with the given compensation value;
5) During the operation of the program, it is necessary to investigate several manifestations on the numerical control system;
6) Coordinate display: you can know the current position of the tool movement point in the machine tool coordinate system and the workpiece coordinate system, know the movement amount of this block, and how much remaining movement amount, etc.;
7) Display of registers and buffer registers: It can be seen that each status command of the program segment is being executed and the content of the next program segment.