What should be paid attention to in the operation of cylindrical grinder

Cylindrical grinder of preparation before operation:

1. Arrange the position and circuit of the machine tool (voltage 380V).

2. Whether the relevant equipment is complete (check the relevant equipment list)

3. Prepare the grinding fluid suitable for grinding the workpiece.

4. Check whether the oil tank is full. The hydraulic oil is 68 anti-wear type (advocate Mobil, shell, Castrol and puke), and Mobil No.2 is used for guide rail oil. If it is a bearing type spindle, hydraulic oil is not required.

Grinding wheel of selection:

1. The grinding wheel with lower hardness should be selected for grinding metal data with poor thermal conductivity, grinding thin-walled parts and grinding with warm and slow feed.

2. The workpiece data are the same, the grinding tool should be selected when grinding the outer circle ratio, grinding plane, inner hole, etc.

3. High speed, high precision, continuous surface grinding, workpiece deburring, etc., should choose a harder grinding tool.

New grinding wheel of installation:

1. New grinding wheel should be carefully checked to see whether there are cracks and scars, otherwise stop using. ;

2. The new grinding wheel needs to be carefully balanced twice, that is, the first time before the device is installed, the spindle is fixed with diamond, and then the balance is removed again.

3. When a new grinding wheel device is used, a 0.5 ~ 2 mm paper pad should be lined between the grinding wheel and the flange plate. Flange screws should be evenly and symmetrically tightened, but do not press too tightly to avoid crushing the grinding wheel.

4. After the new grinding wheel is installed, empty operation shall be carried out at the operating speed for no less than 5 minutes, and the operation can be started only after the device is confirmed to be correct and the operation is normal.

5. To check whether the grinding wheel cover is intact and firmly fastened, the machine tool without grinding wheel cover is forbidden to start.

The specific operation is described as follows;

1. Before starting the grinding wheel each time, the hydraulic on-off valve should be placed in the stop position, the adjusting handle should be placed in the low-speed position of Zui, and the rapid feed handle of the grinding wheel seat should be placed in the withdrawal position to avoid accidents. ;

2. Before starting the grinding wheel each time, the smooth pump or the oil pump of hydrostatic oil supply system should be started first, and the grinding wheel can be started after the grinding wheel spindle is smooth and normal (this process is not required if the spindle is of bearing type).

3. At the beginning of grinding, the feed rate should be small and the cutting speed should be slow to avoid the grinding wheel cracking due to cold brittleness, especially when the temperature is low in winter.

4. Before grinding, the interval between the grinding wheel and the workpiece should be adjusted to avoid the collision between the grinding wheel and the workpiece when the grinding wheel seat approaches rapidly. When the grinding wheel is approaching the workpiece quickly, it is forbidden to feed by power or enter the cutter. Pay attention to the outstanding edges and corners of the workpiece to avoid collision. ;

5. When the temperature of grinding wheel spindle exceeds 60 ° C, it is necessary to turn off the equipment and operate after the temperature recovers to normal. ;

6. It is forbidden to use the grinding wheel of the grinder as a general grinder to grind things. ;

7. After operation, the cooling pump should be turned off, the grinding wheel should be idled for a few minutes, and then the grinding wheel should be turned off.

8. Before using, check whether the rail oiler works normally. ;

9. When correcting the grinding wheel, the grinding wheel seat should be quickly introduced before the grinding wheel is corrected

10. Before starting the grinding wheel, the reversing handle must be placed at the position where the grinding wheel is separated from the workpiece to avoid accidents.

11. Before operation, tight protective clothing should be worn, the cuffs should be fastened, and the lower hem of the upper garment should not be opened. Gloves should not be worn. It is not allowed to take off or change clothes or cover the body around the machine tool to avoid the injury of the machine. It is necessary to wear a helmet, braid should be placed in the cap, not wearing skirts, slippers.

12. Prevent the operator from leaving the grinder during operation. If it is necessary to disconnect due to power failure or other reasons, the grinding wheel shall be stopped after it is separated from the workpiece. When the grinder is restarted, it shall be admitted that there is no abnormality in each part before opening.

13. Do not hit, disassemble and straighten the workpieces on the worktable and bed

14. Do not place metal objects on the working surface and the surface of paint.

15. It is forbidden to use compressed air to finish the equipment, so as to avoid impurities entering the guide rail and affecting the service life of the machine tool.