The size of the outer circle next to the shaft shoulder is larger
Analysis reason:
1. The residence time of the reversing table of the CNC cylindrical grinder is too short;
2. The grinding wheel of the cylindrical grinder is worn and the outer corner of the grinding wheel becomes rounded.
Precaution:
1. Extend the residence time of the cylindrical grinder table reversing.
2. It is necessary to correct the grinding wheel of the CNC cylindrical grinder in time to ensure the grinding accuracy of the workpiece.

Both ends of the workpiece are larger and have a saddle shape
Analysis reason:
1. The grinding wheel of the CNC cylindrical grinder has too little excess over the end face of the workpiece;
2. The residence time of the cylindrical grinder table is too short;
3. When grinding the long shaft, the top of the top is too tight;
4. The pressure of the horizontal support block of the center frame of the cylindrical grinder is too large;
Precaution:
1. Correctly adjust the position of the reversing collision block on the worktable of the cylindrical grinder, so that the grinding wheel of the cylindrical grinder exceeds the width of the grinding wheel with the end face of 1/3-1/2.
2. Tangentially adjust the dwell time of the cylindrical grinder worktable;
3. Adjust the top pressure of the cylindrical grinder.
4. Correctly adjust the position of the horizontal support block of the center frame of the cylindrical grinder.

The workpiece is easy to bend when grinding with a cylindrical grinder
Analysis reason:
1. The grinding amount is too large during cylindrical grinding;
2. When grinding on a cylindrical grinder, the supply of cutting fluid is not sufficient;
Precaution:
1. Appropriately reduce the amount of knives on the back of the cylindrical grinder;
2. Ensure adequate supply of cutting fluid.