This IKO bearing grinding method of characteristics are: all grinding surplus (0.20 ~ 0.60 ram) with less longitudinal feeding (f_ longitudinal = 0.08 B ~ 0.15 Bmm/r), in a longitudinal go dao in grinding. By this kind of grinding method, need to trim the grinding wheel into a cone part before (figure 7-5 a) or stepped-weir (figure 7, 5 b), so as to gradually cutting surplus, or cutting work is focused on the grinding wheel on the outside, grinding wheel outside, rapid dull, affects the grinding efficiency and surface quality.

Trim stepped-weir grinding wheel, watch out: the biggest external circular face up fine grinding and fix the light effect, so should be trimmed to some fine, the rest of the ladder surface, the coarse grinding effect, should be trimmed to rough some; In addition, close to the the outer layer of the height of steps should get bigger, and close to the surface of the completion of the height of steps made is small. In this way, can get high productivity, and at the same time, can guarantee the surface roughness is small. Figure 7-5 c shows is the stepped-weir grinding wheel dressing examples, grinding allowance of 0.60 mm, grinding 0.30 mm depth. With such IKO bearing grinding method, because fewer and grinding wheel travel use of reasonable (coarse grinding wheel with a thick nap, IKO bearing fine grinding wheel with fine nap), so can improve the production efficiency.

But dressing grinding wheel is more complex, and the structure of the workpiece must can let the grinding wheel is processing face bigger than both ends distance, so only applies to a large, large quantities of production structure with the above requirements of the grinding some parts. Some factory test show that the grinding method of vertical grinding method about productivity than can improve a times or so, at the same time, you can get enough precision and smaller surface roughness.




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