Lubricating oil is an oil product used to lubricate machinery and equipment, which reduces friction, wear and corrosion, protects machine components, and extends their service life. Lubricating oil is a mixture of base oil and various additives, and different types and grades of lubricating oil are suitable for different machines and conditions. Common lubricants include oil, gear oil, hydraulic oil and industrial lubricants.

Lubricating oil plays an important role in Automatic CNC Machine, and its quality and use method are closely related to equipment failure. According to the performance of Automatic CNC Machine lubricating oil, it can be divided into hydraulic oil, hydraulic guide oil, grease and so on. Correct lubrication maintenance can not only improve the working efficiency of the machine tool, but also extend the service life of the machine tool. Below we will describe the requirements of different machine parts for lubricating oil.

1, spindle lubrication: the spindle system is the core part, the need to use high-performance cutting oil or bearing oil for lubrication. This lubricating oil needs to have good wear resistance, high temperature stability and oxidation resistance to ensure that the spindle has good lubrication and cooling effects when rotating at high speeds.

2, bearing lubrication: lubricating oil should be lubricated and cooled, so it is necessary to use low viscosity CNC machine tool lubricating oil with good lubrication performance.

3, ball screw system: ball screw system needs to use special ball screw grease or high viscosity grease for lubrication. This grease has high load bearing capacity, corrosion resistance and high temperature resistance to ensure the normal operation and life of the ball screw system.

4, guide lubrication: due to the frequent repeated movement of the guide rail, it is easy to produce boundary lubrication or even semi-dry lubrication, resulting in crawling. In order to overcome the crawling phenomenon, in addition to plastering on the surface of the guide rail, the guide rail oil can also be improved, mainly using the machine tool guide oil containing anti-climbing agent. Guide rail oil is generally selected with a viscosity of 32,68,100,150.

5, gear lubrication: general CNC machine tool gear vibration is small, the load is small, generally do not need to add additives, should pay attention to prevent the spindle hot deformation. For CNC machine tools with large impact load, gear oil containing anti-wear agent should be selected. Gear oil used for circulating lubrication or oil bath lubrication, in addition to oxidation resistance, should also consider corrosion, wear, rust and bubble resistance. In addition, the appropriate viscosity of the gear oil should be selected according to the type of gear and the season of use.

6, hydraulic system: The hydraulic system needs to use special hydraulic oil for lubrication and transmission. The hydraulic oil should have good corrosion resistance, high temperature stability and excellent sealing performance to ensure the normal operation and long life of the hydraulic system.

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