What is the formula for roundness adjustment of grinder?

The formulation is one turn, two grinds and three repairs.

The circular grinder is mainly used to grind the outer surfaces of cylinders and cones. The main engine of cylindrical grinder is composed of lathe bed, nose, tail, grinding head, transmission dust suction device and other parts. Spindle box, grinding head with adjustable angle, special fixture for grinding thimble and roller chamfering, dynamic balance frame and roller detector are ordered by customers. Basic operation method of grinding machine:

1, start idling for about five minutes, and then start to check whether each system works normally.

2. Determine the specifications of the fixture required for the machined workpiece, and adjust the tightness to make the fixture convenient and reliable.

3. According to the machining shape and length, press the tailstock, retreat the grinding wheel to a certain distance, mount the workpiece, and start the spindle to make the workpiece rotate. Check whether the condition is normal.

4. Dress the grinding wheel, and trim the forming surface of the grinding wheel according to the drawing. Note: Pay attention to the safe distance and trim it slowly.

5. When aligning the cutter, adjust the position of the grinding wheel to align it with the position of the workpiece to be processed. It is best to retreat the grinding wheel for a certain distance and slowly contact the workpiece for aligning the cutter.

6. Testing and handling. Pay attention to take back the dial every time you feed, and slowly shake the dial, otherwise there is a danger of exploding the grinding wheel, which is extremely dangerous.

Extended data:

Elimination method of roundness vibration mark of grinder;

1, pay attention to keep the grinding wheel balanced. The grinding wheel needs two static balances. After the grinding wheel is used for a period of time, if it is unbalanced again, it must be statically balanced again; Before the grinding wheel stops, turn off the cooling liquid to make the grinding wheel spin and dehydrate, so as to avoid the imbalance caused by the cooling liquid gathering at the lower part.

2. The hardness of the grinding wheel is too high. According to the material characteristics of the workpiece, choose the appropriate grinding wheel hardness.

3. If the grinding wheel is dull and not dressed in time, it must be dressed in time. ?

4. Grinding wheel dressing is too fine, or the corners are blunt and the grinding wheel dressing is not sharp; Choose a reasonable dressing dose, or aim the sharp corner at the grinding wheel or re-weld the diamond. ?

5. The circumferential speed of the workpiece is too high, and the center hole of the workpiece is polygonal; Is it suitable? Reduce the rotating speed of the workpiece and trim the center hole.

6, the workpiece diameter weight is too large, does not meet the specifications of the machine tool; Instead, it is ground on a larger grinder. If this cannot be done due to equipment conditions, the grinding depth and longitudinal feed can be reduced and the grinding wheel can be sharpened. ?

7, grinding wheel spindle bearing wear, fit clearance is too large, resulting in radial runout; Adjust the bearing clearance as specified in the machine tool manual.

8. The spindle bearing of the headstock is loose, and the bearing clearance is adjusted.