Xinkaite Bearing traces of generating grinding Causes
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| Time：2016.08.29 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Xinkaite bearing grinding process, the surface of the work is carried out by high-speed rotating grinding wheel, so if you do not follow the operating instructions for operation and adjustment of the device, there will be all kinds of defects at the time of grinding in Xinkaite bearing surface, which affects the overall quality of Xinkaite bearing. Xinkaite bearings in precision grinding, because the rough is demanding, the work traces the surface grinding can often be observed to surface grinding marks are the following naked eye.
Reason cross spiral marks appear traces manifestations of this is mainly due to poor wheel of the bus straight there bump phenomenon, when the grinding wheel and workpiece is only partial contact, when the workpiece or grinding wheel several times back and forth movement, the work performance will be reproduced and cross-helix can be observed visually. Pitch and speed of the work table of these spirals, the size of workpiece speed, but also with the wheel axis and the table is not parallel to the rail about.
Mainly due to (a) helix form
1. Dresser bad, not chamfered corners, unused coolant trimming;
2. The table guide rails too much oil, causing the table to float;
3. The machine precision is not good;
4. The grinding pressure too big.
Having reasons (two) spiral formed
1.V shaped track rigid bad, when an offset grinding wheel, but the wheel in contact with the edge of the work surface;
2. When trimming noisy round the table to change the speed of instability, accuracy is not high, so that the wheel a little less edge trimming;
3. workpiece itself poor rigidity;
There are too broken ground under the flaking grits and the workpiece is attached to the wheel surface iron product 4. wheel, for good dressing wheel should wash or scrub clean with cold water;
5. Dresser is not good, there is a local projection and so on.
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