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Three methods for dealing with radial runout of CNC milling machine tools

For the operation of CNC milling machines, the radial runout of cutting tools is a significant issue. Radial runout not only has a significant impact on machining accuracy, but also poses a serious threat to the service life of cutting tools. Therefore, once a radial runout of cutting tools is encountered, it must be dealt with immediately. Today, our CNC lathe manufacturer will explain the three methods for dealing with the radial runout of CNC milling machine cutting tools.
1. The method of reducing radial runout of cutting tools during machining is mainly due to the increased radial cutting force that exacerbates radial runout. So, reducing radial cutting force is an important principle for reducing radial runout. Use sharp cutting tools with larger tool rake angles to make them sharper and reduce cutting forces.
2. Why does the radial dimension of the CNC lathe always change? Answer: Axial is along the axial direction, while radial is in the cross-sectional direction. Mark a gauge inside the tapered hole, use the bearing as a reference, rotate the shaft, and measure the radial runout of the tapered hole. Bearing preload refers to the amount of axial or radial load pre applied to ensure the normal operation of the bearing, also known as preload. The main purpose of pre tightening high-speed precision spindle bearings is to improve the rotational accuracy of the bearings, avoid sliding of rolling elements at high speeds, increase bearing rigidity, reduce axial and radial runout of the support, increase bearing damping, reduce noise, and improve bearing performance.
3. Mark a gauge inside the tapered hole, use the bearing as a reference, rotate the shaft, and measure the radial runout of the tapered hole. The radial retraction amount after each radial feed (unit: mm); X: The absolute X-axis coordinate value of the cutting endpoint can also be expressed as the relative coordinate U: the difference between the X-axis relative coordinates of the cutting endpoint and the starting point (unit: mm）；。
The above are the three methods compiled by CNC lathe manufacturers to deal with the radial runout problem of CNC milling machine tools. We hope that the above explanation can be helpful for everyone when using CNC milling machines in the future.