An important means of preventing or delaying machine wear is lubrication

Machine tool lubrication is one of the important means to prevent or delay the wear of machine tools. Strengthening the lubrication management of enterprise equipment is an important prerequisite for ensuring the equipment is in good condition, giving full play to equipment functions, reducing equipment accidents and failures, extending equipment use accuracy and life, and improving equipment operation efficiency. .

1. The main components in the machine tool are mostly mechanical parts, standardized and generalized, and the degree of serialization is high. For example, sliding bearings, rolling bearings, gears, turbine pairs, rolling and sliding guides, screw drive pairs (screw nut pairs), clutches, hydraulic systems, cams, etc., have different lubrication conditions.

2, the use of machine tools environmental conditions: machine tools are usually installed in indoor environment, the summer ambient temperature is up to 40 ° C, when the winter temperature is 0 ° C, more heating, so that the ambient temperature is 5 ~ 10 ° C. High-precision machine tools require a constant temperature air conditioning environment, generally around 20 °C. However, due to the high precision and automation of many machine tools, the requirements for viscosity, oxidation resistance (life) and oil cleanliness of lubricating oil are strict.

3. Working conditions of machine tools: Different types of machine tools of different specifications and sizes, even on the same machine tool, the working conditions are very different due to the different processing parts. The requirements for lubrication vary. For example, the grinding wheel spindle bearings of high-speed internal grinding machines and the heavy-duty, low-speed spindle bearings of heavy-duty machine tools have very different requirements for lubrication methods and lubricants. The former needs to be lubricated with an oil mist or oil/gas lubrication system, using a lower viscosity lubricant, while the latter is lubricated with an oil bath or a pressure cycle lubrication system, using a higher viscosity oil.

4. Adaptability of lubricating oils and lubricating coolants, rubber seals, paint materials, etc.: Lubricating coolants are used on most machine tools. In lubricating oils, oils are often emulsified and deteriorated by mixing lubricating coolant. The rust of the machine parts causes the rubber seal to expand and deform, causing bubbles and flaking on the paint coating on the surface of the part. Therefore, it is necessary to consider the adaptability of oil and lubricating coolant, rubber seals, paint materials, and prevent oil leakage. In particular, as the degree of automation of machine tools has increased, lubricating/cooling general-purpose oils have been used on some automated and numerically controlled machine tools, either as lubricants or as lubricating coolants.

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