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CNC turning-milling composite machining centers are highly integrated CNC machine tools capable of performing multiple operations such as turning, milling, drilling, boring, and even tapping in a single setup, greatly improving the processing efficiency, accuracy, and flexibility of complex parts.
However, friction between the various components of the machine tool can lead to processing errors, affecting the accuracy and quality of the parts. Therefore, reducing friction errors in CNC turning-milling composite machining centers is of great importance for improving processing quality and efficiency. This article will share methods for reducing friction errors in CNC turning-milling composite machining centers.
1. Selecting High-Precision Bearings and Transmission Components
The precision of the bearings and transmission components of the CNC turning-milling composite machining center has a significant impact on the machine tool’s friction errors. Therefore, selecting high-precision bearings and transmission components is an important measure to reduce friction errors. At the same time, the wear of bearings and transmission components should be regularly inspected, and damaged parts should be replaced or repaired promptly.
2. Optimizing Lubrication of Guide Rails and Sliders
Guide rails and sliders are important moving parts of the CNC turning-milling composite machining center and are crucial for achieving high-precision positioning and smooth feeding. Traditional sliding guide rails, while having good rigidity, have a high friction coefficient. Therefore, we can choose high-precision linear rolling guide rails or hydrostatic guide rails, and select appropriate lubricants and lubrication methods based on the machine tool’s usage and processing requirements to ensure smooth movement of the guide rails and sliders.
3. Adjusting the Concentricity of the Spindle and Tool
The concentricity of the spindle and tool has a significant impact on the processing accuracy of the CNC turning-milling composite machining center. Therefore, the concentricity of the spindle and tool should be adjusted to ensure that the tool does not deviate from the spindle centerline during processing. In addition, the wear of the tool should be regularly checked, and the tool should be replaced or reground promptly.
4. Adopting Advanced Processing Techniques and Cutting Parameters
Advanced processing techniques and turning parameters can effectively reduce friction errors in CNC turning and milling machine. For example, using high-speed cutting technology can reduce the impact of turning force and cutting heat, improving processing accuracy and efficiency. At the same time, reasonable cutting parameters can also adjust the magnitude of cutting force and cutting heat, reducing errors caused by temperature changes.
5. Strengthening the Precision Testing and Maintenance of Machine Tools
Regular precision testing and maintenance of CNC turning and milling machining centers are crucial measures for reducing friction errors. Using high-precision instruments such as laser interferometers/ball bar systems to test and calibrate the CNC machine tool’s accuracy can help identify error sources in a timely manner, allowing for appropriate adjustments and repairs. Simultaneously, regular maintenance ensures the normal operation of all machine tool components, improving the machine’s lifespan and precision stability.
Summary
Reducing friction errors in turning-milling composite machining centers requires a multi-faceted approach, including selecting high-precision bearings and transmission components, optimizing the lubrication of guide rails and sliders, adjusting the concentricity of the spindle and tools, adopting advanced processing techniques and cutting parameters, and strengthening CNC machine tool precision testing and maintenance. Only by fully implementing and executing these measures can friction errors be effectively reduced, improving the processing quality and efficiency of turning-milling composite machining centers.
If you are facing complex precision parts machining challenges or wish to ensure your equipment maintains high precision over the long term, please contact our technical team. We will provide customized solutions and professional maintenance consulting to ensure your machine tools deliver maximum value.
