How to operate the surface grinder and precautions?

1、 Before operation

1. Before operation, operators must wear protective masks, aprons and other protective equipment, buckle up their clothes, and fasten the cuffs. It is forbidden to wear gloves for operation;

2. Carry out equipment spot inspection in strict accordance with the spot inspection system, and make corresponding records; before the grinding machine works, add oil and water according to the grinding machine operation regulations, check whether the oil mark, water mark, oil volume and water volume are normal, whether the oil circuit and circuit are smooth; keep the lubrication system clean, and keep the oil tank and water tank from opening;

3. Check whether the handle is in the specified position, whether the operation is flexible, and whether the safety protection device is in good condition. Whether the connecting parts are tight, whether the brake is complete and flexible to operate;

4. Before placing the workpiece, open the grinding wheel cover, rotate the grinding wheel by hand, and check the tightness, integrity and balance of the grinding wheel. The grinding wheel of different materials should be selected for the work of different materials. If the machine is shut down for more than 8 hours, it should be idled for 3-5 minutes to make all systems work normally before use;

5. The operator should be familiar with the general performance, structure and transmission system of the grinder. It is strictly forbidden to use the grinder with super performance.

2、 Work in progress

1. Turn on the main power switch, turn on the magnetic suction switch, press the start key of the oil pump and grinding wheel, and carry out the empty car operation. The formal operation can only be carried out after confirming that all parts work normally;

2. Before the worktable moves, make sure that the installed workpieces are neat and reliable. It is forbidden to correct grinding wheel or hammer on the machine tool workbench, and it is forbidden to put anything on the control table to avoid damaging the machine tool and affecting the machining accuracy;

3. When starting, start magnetic absorption, oil pump, grinding wheel, water pump and travel switch in turn. When cutting, strictly control the cutting distance to avoid damaging the grinding wheel and workpiece too much. Generally speaking, the resin bonded grinding wheel is usually used for the reformed magnetic core, and the feed amount of each time shall not exceed 0.2mm. The first feed and the last feed shall be controlled within 0.1mm. For the magnetic core with direct air gap, the metal adhesive grinding wheel is usually used, and the feed amount each time shall not exceed 0.1mm, and the first feed and last feed shall be controlled within 0.05mm;

4. The length and width of the workpiece shall not exceed the length and width of the worktable;

5. During grinding, the grinding wheel shall not be stopped when the grinding wheel does not exit from the worktable. When stopping, the grinding groove shall be stopped first, and then the water pump shall be stopped in turn. After the grinding wheel, oil pump and demagnetization, the grinding workpiece can be removed;

6. Positioning safety device must be used in automatic tool feeding. When moving fast, the handle position should be fixed. No one or anything is allowed to approach within the operating range of the worktable. Attention should be paid to the movement of the worktable to prevent collision accidents;

7. For each grinding workpiece, sampling inspection should be carried out (for magnetic core, the sampling proportion is 3%, and others depend on the workpiece specification). After the sampling results fully meet the process requirements, the workpiece can be removed;

8. When loading and unloading the grinding wheel, the power supply should be cut off and the wooden plate should be padded on the working table. Before loading the grinding wheel, it must be ensured that the grinding wheel has been balanced. Regularly use special tools (diamond corrector or or workpiece) and level gauge to trim the grinding wheel and correct the balance of the worktable, generally once a week. If the machine tool works abnormally. In case of deformation or poor consistency of the workpiece after grinding, the grinding wheel shall be corrected immediately and the worktable shall be corrected;

9. In case of any abnormal condition in the process of use, the operation shall be stopped immediately, the power supply of the equipment shall be turned off, and the professional maintenance personnel shall be informed for maintenance;

10. Concentrate on the work and do not do anything irrelevant to the work.