Precautions about Woodworking and Milling Machine Operation

• Before starting milling, mechanical inspection and pre-work preparations must be done, the motor is turned on, and the milling operation can be performed after the machine tool is running normally.

• When cutting, grooving, and threading operations, select the milling cutter according to the mouth shape, groove shape and line shape of the processing component. When choosing an assembled milling cutter, install the blade on the tool holder, and then put it on the platform to check the neatness of the blade with a square ruler, and install the milling cutter on the cutter shaft.

• When processing larger components, it should be operated by two people, and the advancing and pulling should be closely coordinated, and the speed should be uniform and not too fast. It should be adapted to the rotation speed of the milling cutter and slow down when encountering a knot. When the component is processed to about 200mm, it can be pushed with a wooden stick to prevent hand injury.

• When the cutting operation is carried out, two people are generally required to operate. First, press the wood and push it forward along the table and close to the guide plate, and release it when it is 20mm away from the knife edge; Pull slowly.

• When the integral milling cutter is selected, it can be installed directly. After the milling cutter and the cutter shaft are fastened, turn the handwheel to adjust the milling cutter to the desired height. Adjust the guide plate and install it firmly, and cover the protective cover. During operation, start the motor, and after the operation is normal, push the component forward along the table against the guide plate, press the component with the left hand, and push the component with the right hand.

• When the tenoning operation is performed, the wood can be clamped on the cart, and the end of the wood can be pulled out of the tenon when the cart moves forward.

• When milling curved parts, it is necessary to design a curved guide plate to replace the guide ruler according to the shape of the part, and fix the guide plate on the worktable. The curved surface of the mold should be consistent with the curved surface of the part to be processed. During operation, clamp the part on the mold, so that the curved surface of the mold slides against the curved surface of the guide plate, and the curved surface of the part is processed by the cutter head.

Maintenance of woodworking and milling machines

During the operation of woodworking and milling machines, failures often occur. In fact, most of the failures can be found and eliminated in time, but if handled improperly, it may affect the production cost. This requires operators to be aware of common faults, respond quickly, and eliminate them in time. Some faults are not serious when they are discovered, but if they are not handled properly, they will cause major faults and seriously affect the production of the workshop.

Power work light is off

First check whether the power indicator light is damaged, whether the fuse is burned out, and whether there is a disconnection; if the above conditions do not occur, check whether the switch wire is loose; if there is no abnormality, check whether the transformer is burned out, or whether there is an open circuit in the connector line. If the transformer burns out, the transformer needs to be replaced.

Spindle motor does not turn

Check whether the main motor is burned out, if it is burned out, it needs to be replaced; check whether there is a short circuit or open circuit in the internal coil, and whether the connector wire is loose.

The oil pump in the main shaft gearbox or the gearbox of the feed mechanism is not oiled

There are three possible reasons. First, the oil level in the fuel tank is too low, and the oil suction pipe is not inserted below the oil level, causing the hydraulic pump to suck empty. At this time, it is necessary to add enough oil to the specified oil line, and insert the oil suction pipe 20-30mm below the oil level. Second, there is serious oil leakage between the plunger and the pump body. At this time, the plunger needs to be replaced and the pump body should be equipped with a gap of not more than 0.03mm. The third is that there are too many impurities in the lubricating oil, and the oil filter is blocked. At this time, the oil filter and the oil tank need to be cleaned and replaced with clean oil.

Spindle speed is unstable

There are four possible reasons. First, the V-belt is too loose and slips. At this time, the motor seat or belt tensioning device should be adjusted to keep the V-belt tight. The second is the loose fit between the V-belt pulley and the shaft key. At this time, the keyway should be repaired and a new key should be provided. The third is that the V-belt is worn or damaged. At this time, a new V-belt should be replaced. Fourth, the motor failure. The motor should be inspected, repaired or replaced at this time.

Idling occurs

It may be that the belt between the motor and the main shaft is too loose, and the drive belt needs to be adjusted.

Conclusion

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