1. Rational use of CNC machining tools
The light knife for processing steel and copper should be strictly distinguished and used. The allowance of the light knife should be reasonable, so that the smoothness of the workpiece and the service life of the tool will be better.
2. Before CNC machining, use a calibration meter to check whether the tool swings within the allowable tolerance range. Before machining, use an air gun to clean the tool head and lock tip, or use a cloth to clean them. Too dirty will have a certain impact on the accuracy and quality of the workpiece.
3. During clamping, pay attention to see whether the name and model of the CNC workpiece and the program sheet are the same, whether the material size matches, whether the clamping height is high enough, and use a caliper to clamp the number.
4. The CNC processing program sheet shall be consistent with the direction of the reference angle marked on the mold, and then check whether the upper 3D drawing is correct, especially for the workpieces that have been drilled with water delivery, and be sure to see whether the 3D drawing is consistent with the upper workpiece water delivery. If there is something unclear, report it to the programmer or find a fitter to check the lower 2D drawing to see whether the 2D and 3D reference angles are consistent.
5. The program list of CNC processing documents should be standardized, including the mold number, name, program name, processing content, tool size, feed amount, especially the tool clamping safety length, the reserved allowance for each program, and the smooth knife. It should be clearly indicated. The place where the R surface and the plane should be connected should be indicated on the program list. The operator should increase 0.02~0.05mm during processing. The operator should first process, and stop to see if the connection is correct after several strokes, Use your hand to check whether the level is raised. If not, lower the gong.
6. Before processing, it is necessary to understand the contents of the CNC processing program sheet. The program sheet must have a 2D or 3D diagram and be marked with "X length, Y width, Z height" hexagonal data,
All planes shall be marked with "Z" value, which is convenient for the operator to check whether the data is correct after processing, and those with tolerance shall be marked with tolerance data.
7. The machine tool processing speed shall be strictly controlled by the operator. The F speed and the S spindle speed shall be reasonably adjusted. When the F speed is fast, it shall be faster than the S spindle. The feed speed in different areas shall be adjusted. After processing, the machine can be unloaded only after the quality is checked, and the processing should be perfect at one time.
