Bearing ring grinding super processing technology and development ( 3)

3. 2 superfinishing 3 influence on working performance of the rolling bearing. 2. 1 to improve the bearing rotating accuracy, reduce the vibration and noise of bearing. 3. 2. 2 to improve the bearing capacity. 3. 2. 3 to improve the effect of the bearing lubrication, reducing wear and tear. 3. 2. 4 bearing heat at work. 3. 3 3 ultra lapping machining technology. 3. 1 it decided to the performance of oil stone oilstone manufacturing technology is the precondition of lapping technology exists, use requirements: sharpening stone cutting performance, wear and tear to slow, and to have enough strength. Of vitrified bonded CBN superfinishing oil stone, can maintain continuous constant high cutting rate and is a small amount of wear at the same time, the critical pressure is high, can greatly improve the overall quality of the workpiece processing and uniformity. Diamond super-fine oil stone, can obtain the highest cutting rate, minimum wear rate and the best surface lapping effect. Cubic silicon carbide abrasive, similar to diamond, cubic boron nitride cutting force and processing quality after the first two, is higher than general silicon carbide. 3. 3. 2 superfinishing process technology superfinishing process in the ultra lapping process is divided into coarse and fine ultra two stages. Coarse ChaoJieDuan in abrasive abrasive is sharp, oilstone pressure is higher, low rotating speed, the oscillating frequency is higher, thus cutting ability is strong, is to remove the workpiece processing capacity of the main stage. Deactivation of abrasive abrasive relatively pure ChaoJieDuan, oilstone pressure is low, high rotating speed, the oscillating frequency is low, thus cutting ability is abate, the workpiece surface polishing effect strengthening, greatly reduce the surface roughness value. One, two stage method, a sequence of two footwork, oil stone automatic compensation technology, automatic sharpening stone supply technology, coarse and fine super abrasive automatic transformation technology and high frequency oscillation and low frequency in domestic or foreign equipment such as large reciprocating technology has been employed. 3. 3. Raceway workpiece positioning technology at present ultra lapping machine has the following several most common ways of workpiece positioning: end roller mechanical compression type coreless clamping, hydraulic centering end roller mechanical clamping pressure type, double roller drive end compression type clamping unintentionally. 3. 3. 4 lubrication cooling technology superfinishing lubricants three main functions: when flushing cooling, lubrication, formation of adsorption of oil film. Superfinishing of lubrication cooling requirements: appropriate viscosity, antirust function, volatile small, repeated use. Superfinishing of lubricating coolant filtration precision have strict requirements, so must have a high precision filtering device to guarantee. Above all, professional committee of technological tooling around a central axis association technical committee 'fifteen' research project requirements, makes the high-quality goods roller bearing, key research is as follows: 1. Bearing roller grinding, super problem. Including roller crown logarithmic curve superfinishing technique has been used successfully in the 'five-year', at present mainly is applied and improve the reliability, stability of superfinishing system problem. 2. Development and improve the ring raceway crown superfinishing machine. Although the technology research has achieved certain results, but the level of the advanced physical distance to SKF short distance. 3. With crown of gear edge over lapping technology and equipment development. 4. End of roller superfinishing technology research and equipment development. 5. Promote the industrialization of new oil stone and popularization and application. 6. The advanced and latest patented technology applied to the roller bearing grinding equipment technical reform and a new generation of equipment research and development. At the same time promote the research and development of roller bearing automatic production assembly line.