Small bearing grinding machine slot problem

(1) grinding wheel during grinding and linear velocity is higher than in the middle of the outside of the, to the center axis is zero, zhou, the central axis of the circle area is little grinding, grinding wheel almost don't use up, so to accelerate the center wheel consumption, in the center of osculum quarto 6 ~ 8 channel slot (2) grinding wheel in the middle of drainage holes smaller ( 20 mm diameter) 。 When grinding, the workpiece by continuously, and the beauty of workpiece is generally greater than 20 mm, cause water not free, increase water pump resistance. So the hole in the wheel outlet open 6 ~ 8 speed makes the grinding liquid extract, alleviate the pressure of the pump, and the grinding liquid very smoothly under the action of centrifugal force to the whole area. 2. Grinding side ( More than four grinding) Grinding side ( Angle) Reasons are various, and the base plate, a benchmark grinding wheel, the relative position of guide plate and the wheel grinding Angle. First, you must press the check and adjust the Angle of grinding wheel grinding, avoid grinding grinding quantity in a certain period of focus on the workpiece through the grinding wheel grinding grinding force uniform, achieve the goal of layered grinding step by step. Second, check the inlet and outlet of the adjustment datum plate parallel to the right of grinding wheel, and the height of each arithmetic. Adjustment guide appropriate gap between base plate at the inlet and outlet of the pressure plate, the workpiece is free, do not produce interference, and to ensure it without bias or slant again, the position relationship between grinding wheel and more important, should be higher than the export base plate is 0. 02 ~ 0. 3 mm finally, check the grinding wheel grinding surface roughness, because of the grinding wheel running linear velocity decreases to zero from the outer edge to the center, the outer consumption is fast, easy to appear in the convex, so to keep type surface roughness 3 dressing grinding wheel. Workpiece thickness deviation workpiece thickness after grinding the deflection phenomenon, cannot satisfy the quality requirements, check the grinding wheel Angle. Workpiece thickness deviation appears on the width direction, because of the grinding wheel vertical upper and lower points caused by inconsistent with open mouth. On the length direction of thickness deviation because of the grinding wheel Angle is too big or too small, or the reverse, Import less than exports) The result of. So a thickness deviation, adjust the Angle. 4. Different grinding grain ( Fills) Grinding grain is not as bad, cutting force and grinding wheel of chip removal is not strong. Is also related to the following three aspects: (1) feeding clamp adjust too tight, feeding is not smooth. (2) the cooling of grinding fluid flow is too small, pressure is too low, not flush effect (3) cooling grinding wheel dressing is not timely, grinding wheel surface is uneven, the middle is too high.