CNC Machining: 10 Solutions to Problems with CNC Machining Parts Accuracy

CNC Machining: 10 Solutions to Problems with CNC Machining Parts Accuracy

In the process of CNC machining parts, we should also choose the correct operation method reasonably according to the specific CNC machining parts accuracy and process requirements and specific CNC machining conditions, so as to ensure the accuracy of CNC machining parts. The accuracy of the machining center affects the quality of CNC machining. VMT will consider the following aspects: the selection of the machine tool, the selection of the tool holder, the selection of the tool, the CNC machining plan, the program generation, the operator's requirements, etc., in order to ensure the CNC parts When machining, the machining accuracy will not be a problem.





1. The workpiece size is accurate and the surface finish is poor





Causes of failure: The tool tip is damaged and not sharp; the machine tool resonates and the placement is not stable; the CNC machining machine has a crawling phenomenon; the CNC machining process is not good.



Solution: If the tool is not sharp after being worn or damaged, re-sharpen the tool or choose a better tool to re-calibrate the tool; the CNC machine tool resonates or the placement is not stable, adjust the level, lay the foundation, and fix it smoothly; the reason for the machine crawling Because the guide rail of the carriage is severely worn and the ball of the screw is worn or loose, the CNC machine tool should pay attention to maintenance. After commuting to get off work, the wire should be cleaned and lubricating oil should be added in time to reduce friction; choose a coolant suitable for parts processing. In the case of process CNC machining requirements, try to choose a higher spindle speed.







2. CNC machining parts produce taper size head phenomenon





Cause of failure: The level of the CNC machine tool is not adjusted properly, one is high and the other is low, resulting in unstable placement; when turning the long axis, the contribution material is relatively hard, and the tool eats the knife deeply, resulting in the phenomenon of letting the knife; the tailstock thimble is different from the spindle Heart.



Solution: Use a spirit level to adjust the level of the CNC machine tool, lay a solid foundation, and fix the CNC machine tool to improve its toughness; choose a reasonable CNC machining process and appropriate cutting feed to avoid the force on the tool and let the knife; adjust the tail seat.

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