What are the common problems with CNC machine tool processing accuracy?

CNC machine tools are high-precision machine tools. Due to their high-speed, high-efficiency, and high-precision characteristics, they are widely used in various manufacturing fields. However, in actual use, there are often some common problems with their machining accuracy. These problems are also our It must be paid attention to and solved in production. The following are common questions about the machining accuracy of CNC machine tools.
1. Tool wear and looseness
Due to the fast cutting speed of the machine tool, the heavy cutting load, and different factors such as the hardness of the material, the multiplication pressure and lubricity of the cutting fluid, the tool will inevitably wear and loosen during the machining process, resulting in a decrease in machining accuracy. .
2. The installation of the workpiece is unstable
When the workpiece is clamped or fixed, if the clamping force is insufficient or the clamping method is inappropriate, it will cause the workpiece to move slightly or vibrate, which will affect the machining accuracy.
3. Machine tool setting issues
The setting of the machine tool is also one of the important factors that affect the machining accuracy, mainly including: workbench height, workbench flatness, machine tool guide rail parallelism, the position of the machining center point and other factors.
4. Unreasonable processing parameters
CNC machine tool processing relies on various control parameters to a certain extent. If the control parameters are unreasonable, such as processing speed, cutting depth, feed rate, etc., it will have varying degrees of impact on processing accuracy.
The above are common accuracy problems in CNC machine tool processing. Of course, there are more other problems that need to be solved one by one in the actual production process. It is recommended that when using CNC machine tools for processing, try to ensure that the equipment is in the best use condition, set control parameters reasonably, perform regular maintenance on the machine tool, and replace seriously worn tools in a timely manner to avoid a decrease in machine tool accuracy due to use errors.