Lubrication technology is widely used in metal processing, and machining centers v1165 is no exception. In the process of using lubrication technology, there are tribological problems, which is a very important field for the full development and application of tribological technology. As long as attention is paid to this aspect, it can reduce production costs, energy consumption, and pollution.
1. Machining stainless steel parts on lathe machining center
Machining stainless steel parts (material Cr18Ni9V, outer circle Φ44.8mm, hole Φ15mmX131mm) on the machining center originally used ordinary N32 total loss mechanical oil as cutting oil, short tool life, especially hole machining tool processing 1 to 2 parts on average to be repaired Grind once.
Improvement method: After switching to special stainless steel metal processing oil, the tool life is extended by 10 times under the same working conditions, and the surface roughness of the processed workpiece is also significantly improved.
2. Solution to the connection of cutting oil and lubricating oil in multi-axis linkage machining center
The multi-axis automatic and multi-axis linkage machining center has a small lubricating oil tank, and it is difficult to return to the crude oil tank after the lubrication system oil pumps out. Such a small oil tank is sucked dry shortly after driving. A lot of engine oil ran into the large oil tank of the cutting oil. In order to maintain balance, many machine tool users connected the cutting and lubricating oil tanks, resulting in severely contaminated cutting oil in the lubricating oil tank, resulting in serious machine tool wear and decreased accuracy. quick.
Improvement method:
(1) Promote the use of cutting and lubricating oil.
(2) Install a fine filter after the oil pump of the original lubrication system to ensure the cleanliness of the machine tool lubrication system.
(3) Cancel the cutting oil tank, use molybdenum disulfide crayons to lubricate the cutting tool or use a vapor-phase lubricated dry cutting device, etc.
3. Whether to use chlorinated paraffin for high-speed cutting worm
The production efficiency of cutting oil and chlorinated paraffin can be increased by more than 10 times, but chlorinated paraffin is a toxic and harmful substance and cannot be used for a long time.
Improvement method: Use MoS2 oil as cutting fluid to achieve the same effect.
4. Lubrication for deep hole machining of camshaft
When a processing plant used to process deep holes of camshafts, due to improper selection of cutting fluid, the deep hole drills had to be ground three times for each piece processed.
Improvement method: After adding 5% to 7% "ER" metal conditioner to the original cutting fluid, the lubrication performance between the tool and the workpiece has been greatly improved. Under the same other conditions, the deep hole of the camshaft can only be repaired for every 3 pieces of camshaft. Grinding the drill bit once will prolong the life of the deep hole drill bit by 9 times.
5. Lubrication of the dead center of the grinder. When grinding slender shafts (including turning), the lubrication problem between the dead center and the center hole of the workpiece is often regarded as a trivial matter and easy to be ignored. We often add some butter (calcium-based grease) to the top. It is lubricated, but sometimes for some large workpieces (slender shafts) due to heavy load and the lubricating grease at the center is easily diluted by emulsion, the result is that the center hole is bitten and the center is burned, which directly affects the processing of the workpiece. Accuracy, more serious, sometimes the top breaks, the workpiece flies out of the accident. This is mainly due to the small contact area between the center of the workpiece and the top pair of friction pairs, the large load per unit area, and the harsh lubrication conditions.
Improvement method: Afterwards, the above problems can be solved by using MoS2 lithium-based grease that is resistant to water and abrasion.
