1. monitor the condition of the machine
Monitoring the condition of the machine is a basic prerequisite for improving the precision of CNC machine tools. The hard/soft state of all parts in the machine, such as the linear guide rails and table, must be checked and adjusted so as to not affect the machining accuracy, including the degree of rigidity, accuracy and parallelism of the spindle head, column and table. At the same time, pay attention to the maintenance of accessories, avoid long-term accumulation of debris, rust and other conditions, and reduce random errors caused by friction resistance.
2. keep the ball screws clean
The accuracy of positioning and moving depends to a large extent on the performance and durability of the ball screws in the CNC machine tool. Ball screw debris, dust, and oil spots will cause the ball and spiral groove to wear and rub against each other during movement, which will reduce the accuracy of the positioning and movement. Therefore, it is necessary to regularly clean the ball screw and ensure that the ball can slide and rotate freely.
3. improve the accuracy of the CNC system
The CNC system is the key to adjusting the accuracy of the CNC machine tool. Therefore, it is possible to improve the accuracy of the CNC machine tool by comprehensively optimizing the CNC system, such as parameters such as speed and cutting flow rate. In addition, mechanical and electrical integration makes the system dynamic driving faster and firmer, more precisely controlling the position of the processing coordinate and helping to improve the precision.
4. improve the drive system
The servo drive is the main driver for CNC machine tools, so it is the key to improving the machine precision and productivity. Necessary measures need to be taken in appropriate conditions, such as increasing the motor power to provide stronger power and improving the resolution of the motor drive to improve the repeatability accuracy.
5. choose the appropriate tool
The rigid and sharp cutting tool helps to reduce the impact on the workpiece, thereby avoiding the loss of tool precision, and directly upgrading the precision of CNC machine tools. Therefore, it is necessary to choose a tool suitable for the processing position, material and structure in order to improve the accuracy of the machine.
6. replace the worn parts in time
In order to ensure the accuracy of the CNC machine tool and the processing quality of the workpiece, the worn parts need to be replaced in time according to the conditions, such as replacing the worn core parts of the servo motor with new ones, and replacing the screw and lead screw.
Conclusion
Maintaining the precision of CNC machine tools is the key to ensuring its normal operation and improving its performance. Therefore, we need to pay attention to the maintenance and repair of the parts of the machine when improving its precision, choose the appropriate tools and parameters, improve the accuracy of the system and drive, and timely replace worn parts.
