One: work environment

1. The equipment needs to be equipped with a protective cover to prevent personal injury and property damage caused by the flying of saw blades and debris.

2. The workplace should be kept away from flammable and explosive materials.

Two: clothing, protective equipment

1. Operators must wear protective glasses and work caps to prevent personal injury. Broken bridge aluminum alloy doors and windows equipment

2. The operator must wear neat work clothes and work shoes to work, no gloves, and long hair must be placed in the work cap to prevent danger.

Three: pay attention before use

1. Confirm whether the equipment is in good condition, the spindle accuracy, and the shaft center tolerance H7.

2. Check whether the milling cutter is defective, falling off, abnormal wear, and whether the plate body is bent, twisted, cracked or not.

3. Confirm whether the selected milling cutter is suitable for cutting materials. If the selection is wrong, the milling cutter may be damaged and personal injury may occur.

Four: the installation of milling cutter

1. Ensure the cleanliness of the milling cutter and flange. The diameter of the flange is between 1/3-1/4 of the diameter of the saw blade.

2. Ensure that the milling cutter is installed in the correct rotation direction. Improper rotation will cause damage to the cutter head and personal injury.

3. Ensure that the middle hole of the selected milling cutter is consistent with the axis of the spindle, install the flange without gap, and tighten the nut.

4. Before operation, confirm that there is no one in front of the machine, and then idling to check whether there is vibration of the equipment, and check whether the milling cutter has abnormal phenomena such as lateral swing and radial runout.

Five: The milling cutter is in use

1. The milling cutter cannot be used for work other than the specified purpose, otherwise the use effect will be affected, and abnormal phenomena such as milling cutter damage will occur.

2. When the milling cutter is used, the workpiece to be cut should be fixed, so as to avoid abnormal cutting, resulting in damage to the milling cutter and scattering of fragments, resulting in personal injury and property damage.

3. When the milling cutter is cutting, it must be fed in a straight line, and the material must not be pushed in by force, otherwise the milling cutter will be damaged due to excessive feeding, fragments will be scattered, and personal injury and property damage will occur.

4. When the milling cutter is cutting, make sure that the workpiece to be cut has no foreign objects such as steel, otherwise the milling cutter will be damaged.

5. If the milling cutter vibrates abnormally during cutting, and the cutting surface is rough or curved, it is necessary to stop the operation and check the equipment to eliminate the fault in time.

Six: The influence of air source on cutting

When leaving the factory, the air pressure is generally not less than 6 kg, but many end users ignore this point. The reason is that multiple devices use the same air source, and the actual air pressure on the device is less than 6 kg, sometimes even less than 4 kg. , In this way, the cut profiles will be loosened during the cutting process, which will lead to material collapse, and some even collapse the cutter head. Therefore, before using the milling cutter, be sure to check whether the air source pressure reaches more than 6 kg.

Seven: Influence of feed speed on milling cutter

The feed speed of the milling cutter not only affects the service life of the milling cutter, but also directly affects the finish and cutting quality of the profile to be cut. At present, the feed speed of the factory design is generally up to 6 meters per second, but the door and window factory will not More than 4 meters, most of them are below 3 meters per second. They think that the lower the feed speed, the higher the finish, which is actually a misunderstanding. The reason is that most people think that the fast feed speed is easy to break the teeth It is wrong to think that the power of the motor cannot be reached. I have done an experiment. Compared with the same equipment with a feed speed of not less than 5 meters per second and 3 meters per second, the cut finish is completely different. , the same motor, the same saw blade, therefore, we recommend adjusting the feed speed of the saw blade to 4-5 meters. The reason for this is: 1. Slow feed speed will generate large heat, Especially the broken bridge aluminum, the heat will melt the woolen 66 of the thermal insulation layer, and after melting, it will float on a plastic film on the sawtooth, which will soon cause the main blade of the sawtooth to have a negative edge, which will cause damage when cutting. Make the profile burr; 2. Slow feed speed and low work efficiency; 3. Faster feed speed can improve work efficiency, but mainly prolong the service life of the saw blade.

Eight: Correct use of coolant

1. Using water as coolant is unscientific, because water can only cool for a short time but not lubricate, and it will rust in a short time, which not only fails to lubricate but shortens the saw blade service life.

2. Using saponification liquid for cooling, this method is low cost, but the effect is not good, sometimes the aluminum scraps will stick to both sides of the saw blade and the saw teeth, because of this, sometimes a stick saw will be produced, which reduces the saw blade's durability. service life.

3. Use diesel oil and kerosene as coolant. Compared with pure imported coolant, this method has lower cost, but the effect is greatly improved compared with the first two. The smoke brings a lot of inconvenience to the operator.

4. It is recommended to use special coolant for cutting, which is characterized by smokeless, non-toxic and odorless, which can not only play a cooling role but also play a lubricating role, and prolong the service life of the saw blade by one third.

Nine: storage and sharpening of milling cutters

1. When storing the milling cutter, it must be placed vertically. It is forbidden to place sundries on the milling cutter to avoid deformation.

2. When the milling cutter is not sharp, it must be ground, and the grinding must be carried out by a professional manufacturer, and the original angle cannot be modified.