What should be paid attention to in the operation of internal grinder?

It is necessary to master certain skills to operate the internal grinder. For operators, besides mastering the operation skills of internal grinder, they also need to know the safety operation rules of internal grinder in order to effectively avoid production accidents.

The following points should be paid attention to when operating the internal grinder:

1, internal grinder must comply with the safety operation procedures of mechanical tools.

2. Before the workpiece is processed, the appropriate grinding wheel should be selected reasonably according to the material, hardness, smoothness and rough grinding of the workpiece.

3. When replacing the grinding wheel, it should be carried out in accordance with the safe operation procedures of the grinder. Carefully check whether the grinding wheel granularity and linear speed meet the requirements, the surface is free of cracks, and the sound should be crisp.

4. When installing the grinding wheel, it must pass the balance test, test run for 10 minutes, and it can be used only after it is confirmed.

5. When grinding, first adjust and tighten the longitudinal stop iron to make it sensitive to reciprocating motion. People are not allowed to stand in front, but on the side of the grinding wheel.

6. When feeding, the grinding wheel is not allowed to contact the workpiece at once. Leave a gap and feed slowly to prevent the grinding wheel from bursting after being suddenly stressed, causing an accident.

7. When the grinding wheel does not exit the workpiece, it is not allowed to stop running halfway. Stop loading and unloading workpieces and measuring accuracy, and return the grinding wheel to a safe position to prevent hand injury.

8, dry grinding workpiece, are not allowed to suddenly turn to wet grinding, prevent grinding wheel fracture. When the cooling liquid for wet grinding is interrupted, stop grinding immediately.

9. When the internal grinder grinds the internal hole, measure it with a plug gauge or an instrument, and the grinding wheel should retreat to a safe position until the grinding wheel stops rotating.

10, internal grinder can't use automatic feed when grinding various intermittent surfaces such as tools, splines, keyways and flat bodies, and the feed speed can't be too high.

1 1, the end-face grinding wheel is not special, and it is not allowed to grind a wide plane to prevent fracture and personal injury.

12. Change the coolant frequently to prevent environmental pollution.

Safety protection device of internal grinder;

A all rotating parts on the grinder, such as grinding wheel, motor, pulley and workpiece spindle box, must be equipped with protective covers. The protective cover should be fixed firmly, and its connection strength should not be lower than that of the protective cover. Fence plates should be set at both ends or around the workbench of surface grinder to prevent the ground workpiece from flying out.

B, with electric, pneumatic or hydraulic clamping device grinding machine should be equipped with interlocking device, that is, when the clamping force disappears, grinding work should be stopped at the same time.

C, grinding machine using cutting fluid should be equipped with splash baffle to prevent cutting fluid from splashing on the operator and the surrounding ground, and dust removal device should be equipped during dry grinding.