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How to improve the precision of bearing centerless grinding machine
Source: Bearing network time: 2018-05-12
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MG1020 centerless grinding machine has high precision; high efficiency; high machine stability is a very profitable machine tool; but because of the high price, very few people ask questions; a new 1020 is more than 130,000 yuan but an old one is only needed 5 to 60,000 yuan; if you are smart enough; below I teach you to make an old machine tool the same as the new one; the same precision with the same stability:
First, the joints of the various parts are well-calibrated; then the machine tool system is disassembled 1 grinding wheel system 2 grinding wheel repairing overall system 3 guide wheel system 4 guide wheel repairing overall system 5 hydraulic system 6 smooth system; accessories and bolts of each component please classify Place to avoid confusion or throw away.
Second, check the outer diameter of the grinding wheel shaft is not 75MM; if it is small beyond 5 wire; advocate the replacement of the shaft; make a 75MM positive 10 wire pig iron grinding rod with the research bearing bush until all contact; install a hole 75 positive 2 wire. Concentric sleeve with outer diameter of 110 minus 2 wires; use concentric sleeve to adjust the spindle of the machine tool to be concentric with the outer casing of the machine tool; also ensure that the lateral clearance of the main shaft is not greater than 0. 01MM; the grinding wheel shaft can be easily changed by hand.
Third, check the trimmer and the cylinder to disengage; use the hand-trimming device to go back and forth; no light or heavy; no swaying by hand, no gap; no shaving.
4. Check the shaft and bearing bush of the same guide wheel as the grinding wheel; then adjust the guide shaft of the machine tool with the concentric sleeve; ensure that the lateral clearance of the shaft does not have axial transmission within 0. 002MM. There must be no abnormal noise after driving. 5. Since the MG1020 is hydraulically self-smoothing rails, it is necessary to fully remove and wash the hydraulic system from the beginning.
Sixth, the sleek system is the sand-preserving wheel shaft. Just like the human heart, the brain is the same unique and important. After the system is removed and washed, 2 the grinding wheel is tested and the oil cutting machine is used to see if the machine tool is insured.
7. The debugging method of the guide wheel dresser is the same as that of the grinding wheel.
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