Centreless grinder grinding characteristics and safety operation rules

In centerless cylindrical grinding, the workpiece is placed between a guide wheel and a grinding wheel, one of which acts as a grinding wheel and the other as a driving wheel, called a guide wheel. The lower part of the workpiece is supported by a support plate. The guide wheel is made of rubber bond, and its axis is 0 angle with the grinding wheel in vertical direction, which drives the rotary motion and feed motion of the workpiece.

When centreless grinding is used, the grinding wheel rotates at a circular speed about 75 times greater than the guide wheel. Since the friction between the workpiece and the guide wheel is greater than the friction between the workpiece and the grinding wheel, the workpiece is driven by the guide wheel and after grinding, the tolerance class IT6-IT7 of the workpiece is Surface roughness to raq. 8-0.01 um.

1. When feeding with a push rod, hold the push rod firmly and do not use metal rod. 2. When grinding the bar material, the center of the material carrier, the grinding wheel and the guide wheel should be in a straight line. Do not wear bending materials. 3.the workpiece is not out of the grinding wheel, do not take out. When handling the workpiece, quickly grasp the workpiece to stop its rotation. 4, hand grinding workpiece, hand from the grinding wheel should be more than 50 mm, do not hold too tight. 5. When correcting the grinding wheel, feed the tool slowly and give enough coolant to prevent damage to the diamond drill. 6, the workpiece in the middle of the grinding wheel skew, to stop urgently. 7. Wear gloves when installing the screw wheel; take the inner hole of the end face of the screw wheel, not the outside of the screw wheel. 8. Do not add material exceeding specifications. When you find the big material, take it out immediately to prevent accidents.