Guide rail is one of the important components of gantry CNC drilling and milling machine, which assumes the role of support and guidance. CNC drilling and milling machine has an important dependence on the machining accuracy, load capacity and life span, which depends on the accuracy and performance of the guide rail.
The function of the guide rail is to provide a reliable foundation for realizing various precision machining tasks of CNC drilling and milling machine, and to guarantee the use effect and stability of CNC drilling and milling machine. The high-quality performance of the guideway is the necessary guarantee for realizing efficient machining and guaranteeing high-quality finished products.
Gantry CNC drilling and milling machine on the basic requirements of the guide rail
▶ High guiding accuracy
Guiding accuracy refers to the accuracy of the mutual position of the trajectory of the moving parts of the machine tool and the relevant base surface of the machine tool when they move along the guideway. The guideway should have sufficient guiding accuracy regardless of whether it is unloaded or in working condition. The guiding accuracy of the guideway is affected by the structural form of the guideway, the combination of the way, manufacturing accuracy and guideway clearance adjustment and other factors.
Guiding accuracy refers to the moving parts of the machine tool in moving along the guideway, the accuracy of the movement track and the machine tool's own base surface mutual position. This plays a vital role in the working accuracy, quality and stability of the machine tool.
In the whole process of the machine tool, whether no load or working condition, the guideway should have sufficient guiding accuracy to ensure efficient and stable operation of the machine tool. The guiding accuracy of the guideway is affected by the structural form of the guideway, the combination of the way, the manufacturing accuracy and the guideway clearance adjustment and other factors.
▶ Sufficient rigidity
Guiding accuracy is the accuracy of the mutual position of the motion trajectory formed by the moving parts of the machine tool and the machine base surface when moving along the guideway. For the accuracy and stability of the machine tool work this is critical.
The structural form and size of the guideway is the main factor affecting the guiding accuracy, while the correct use and maintenance can also improve the guiding accuracy of the machine tool. High-quality guideway can make the machine tool run more smoothly, to ensure the accuracy and quality of the processed parts, thereby improving productivity and economic efficiency.
▶ Good wear resistance
The wear resistance of the guide rail is the performance of the guide rail to resist wear and maintain the guiding accuracy of the guide rail during long-term use. Good abrasion resistance can make the guide rail guiding accuracy can be maintained for a long time.
Wear resistance of the guide rail refers to the long-term use of the process, the guide rail can resist wear and maintain the performance of guiding accuracy. Good wear resistance of the guide rail can maintain the guiding accuracy for a long time, so that the reliability and stability of the equipment is guaranteed.
▶ Smoothness of low-speed movement
Moving parts in the guideway at low speeds, should not occur "creep" phenomenon. Crawling" phenomenon produced by the main factors are the nature of the friction, lubrication conditions and the rigidity of the drive system.
When the moving parts in the guide rail at low speeds, should avoid the phenomenon of "crawling". Prevent "creeping" phenomenon, we need to pay attention to the following aspects:
1. Pay attention to the nature of friction. Only the appropriate coefficient of friction to ensure the smooth movement of moving parts on the guideway.
2. Lubrication conditions are also key. Good lubrication conditions can greatly reduce the friction between the moving parts and the guide rail, to avoid the phenomenon of "crawling".
3. We also need to pay attention to the rigidity of the drive system. Only to ensure that the rigidity of the transmission system is sufficient to ensure the smooth movement of moving parts on the guide rail!
▶ Simple structure and good workmanship
Gantry CNC drilling and milling machine guide rail should be considered easy to manufacture and repair, easy to adjust and maintain in use.