Backlash on CNC machine tools What is the impact? How to eliminate the backlash?

What is the backlash, backlash on the impact of CNC machine tools? How to eliminate the backlash?

Backlash is the CNC lathe from the beginning of the transmission to the implementation of the process, the transmission components: the key connection gap, the gear link clearance, the coupling in the key connection gap, the gap between the nuts and nuts and other existing errors, when There is no error when the transmission component moves in a single direction, and there is an error in the numerical control theory of the workpiece and the control workpiece when the reverse movement is performed. This will result in a significant reduction in machine tooling accuracy and a decrease in system stability.

Backlash compensation method:

Mechanical adjustment, ball screw nut to adjust

Through the laser interferometer to detect the machine backlash in each position, enter the internal parameters of the machine to compensate.

With the long-term use of CNC machine tools, the backlash will increase due to the wear and tear of moving parts, which need to measure and compensate the backlash value of CNC lathes regularly, which greatly reduces or eliminates the influence of backlash on machine tool accuracy and workpiece The adverse effects of machining accuracy