Machine lubrication is not simple, these matters need attent

 

 

 

Machinery and equipment need to be maintained, and of course the same is true for machine tools. As a machine for manufacturing machines, machine tools occupies an important position in metal processing. Only when the machine tools are well maintained can they maximize their benefits in production. For machine tool maintenance, machine tool lubrication is essential. Lubricating oil can not only reduce mechanical friction, but can also cool down, seal and prevent leakage, prevent rust, shock absorption, buffering, cleaning and cleaning, etc., and increase the service life of the machine tool. The various benefits show the great role of lubrication and maintenance.
 

There are many ways to lubricate machine tools. The common ones are manual lubrication, drip lubrication, oil rope lubrication, oil pad lubrication, self-priming lubrication, centrifugal lubrication, oil bath lubrication, oil ring lubrication, splash lubrication, scraper lubrication, Roller lubrication, jet lubrication, manual pump pressure oil lubrication, pressure cycle lubrication, automatic timing and quantitative lubrication, oil mist lubrication, etc.

 

The choice of the lubrication method of the machine tool should be determined according to the structure of the machine tool, the degree of automation, the working conditions of the machine tool and the comprehensive measurement of the precision requirements. The machine tool lubrication should strive to avoid temperature rise and vibration while satisfying the reduction of wear and consumption. .

1. The main parts and components in the machine tool are mostly typical mechanical parts, which are standardized, universal, and have a high degree of serialization. For example, sliding bearings, rolling bearings, gears, worm gear pairs, rolling and sliding guides, screw transmission pairs (screw nut pairs), clutches, hydraulic systems, cams, etc., have different lubrication conditions.

 

2. The environmental conditions of the machine tool: The machine tool is usually installed in an indoor environment. The maximum ambient temperature in summer is 40°C. When the temperature is lower than 0°C in winter, heating methods are used to make the ambient temperature higher than 5-10°C. High-precision machine tools require a constant temperature air-conditioning environment, generally around 20°C. However, due to the high accuracy and automation requirements of many machine tools, the requirements for lubricating oil viscosity, oxidation resistance (service life) and oil cleanliness are stricter.

 

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

 

4. The adaptability of lubricating oil to lubricating coolant, rubber seals, paint materials, etc.: Lubricating coolant is used on most machine tools. In the lubricating oil, the oil is often emulsified and deteriorated due to the mixing of coolant. The rust of the machine parts will cause the rubber seals to expand and deform, causing bubbles and peeling of the paint coating on the parts surface. Therefore, consider the adaptability of oil and lubricating coolant, rubber seals, paint materials, and preventing oil leakage. Especially with the improvement of the degree of automation of machine tools, general lubrication/cooling oils are used in some automated and numerically controlled machine tools, which can be used as lubricating oils and as lubricating coolants.