(1) Basic requirements:
1. Select the appropriate saw blade according to the design requirements of the equipment.
2. The equipment should be equipped with safety protection devices, such as: protective cover, power-off brake, overload protection, etc.
3. There are professional operators to install and use, and wear labor clothes, protective glasses, earmuffs, etc.
4. Operators should not wear gloves, long hair should be placed in a work cap, and pay attention to ties and cuffs to prevent danger.
5. Keep away from fire and humid environment.
(2) Installation requirements:
1. The equipment is in good condition, the spindle has no deformation, no radial jump, the installation is firm, and there is no vibration.
2. Check whether the saw blade is damaged, whether the tooth shape is complete, whether the saw blade is smooth and clean, and whether there are other abnormalities to ensure safe use.
3. When assembling, make sure that the arrow direction of the saw blade is consistent with the rotation direction of the main shaft of the equipment.
4. When installing the saw blade, keep the axis, the chuck and the flange clean. The inner diameter of the flange is the same as the inner diameter of the saw blade. Make sure that the flange and the saw blade are tightly combined, install the positioning pin, and tighten the nut. The size of the flange should be appropriate, and the outer diameter should not be less than 1/3 of the diameter of the saw blade.
5. Before the equipment is started, under the condition of ensuring safety, there is a single person to operate the equipment, jog idling, check whether the steering of the equipment is correct, whether there is vibration, and the saw blade is idling for a few minutes after being installed, and it is normal after no slipping, swinging or jumping. Work.
(3) Requirements for use:
1. When working, the workpiece should be fixed, and the profile positioning should be consistent with the direction of the knife to avoid abnormal cutting. Do not apply side pressure or curve cutting. The workpiece flew out and an accident occurred.
2. When working, when abnormal sound and vibration, rough cutting surface, or peculiar smell are found, the operation must be terminated immediately, and the inspection must be carried out in time to eliminate the failure to avoid accidents.
3. When starting and stopping cutting, do not feed too fast to avoid broken teeth and damage.
4. If cutting aluminum alloy or other metals, use special cooling lubricant to prevent the saw blade from overheating, causing tooth paste, and other damage, which will affect the cutting quality.
5. The equipment chip removal groove and slag suction device ensure smooth flow to prevent the slag from accumulating and affecting production and safety.
6. When dry cutting, please do not continuously cut for a long time, so as not to affect the service life and cutting effect of the saw blade; for wet cutting, water should be added to cut to prevent leakage.
(4) Saw blade maintenance:
1. If the saw blade is not used immediately, it should be placed flat or suspended using the inner hole. No other items or foot steps can be stacked on the flat saw blade, and attention should be paid to preventing moisture and rust.
2. When the saw blade is no longer sharp and the cutting surface is rough, it must be re-sharpened in time. Grinding can not change the original angle, and destroy the dynamic balance.
3. The inner diameter correction and positioning hole processing of the saw blade must be carried out by the manufacturer. If the processing is not good, it will affect the use effect of the product and may be dangerous. In principle, the reaming hole should not exceed the original diameter of 20mm, so as not to affect the balance of stress.
4. Selection of alloy grinding wheel.
1) The resin bond diamond grinding wheel has weak bonding strength, so it has good self-sharpening during grinding, is not easy to block, has high grinding efficiency, less grinding force, and low grinding temperature. The disadvantages are poor wear resistance and abrasive tool wear. Large, not suitable for heavy-duty grinding.
2) Ceramic bond diamond grinding wheel has better wear resistance and bonding ability than resin bond, sharp cutting, high grinding efficiency, not easy to generate heat and blockage, less thermal expansion, easy to control the accuracy, and disadvantages of rough grinding surface and high cost .
3) The metal bond diamond grinding wheel has high bonding strength, good wear resistance, low wear, long life, low grinding cost, and can withstand large loads, but it has poor sharpness and is easy to block.
4) The abrasive particle size has a certain influence on the blockage of the grinding wheel and the cutting amount. Compared with the fine grit, the coarse grit has a larger cutting depth, and the cutting edge wear of the abrasive grain increases. On the contrary, the grinding wheel is easy to block.
5) The hardness of the grinding wheel has a great influence on the blockage. The high hardness of the grinding wheel has a high thermal conductivity, which is not conducive to surface heat dissipation, but is conducive to improving the machining accuracy and durability.
6) The selection of grinding wheel concentration is an important feature, which has a great influence on grinding efficiency and processing cost. Too low concentration will affect the efficiency. On the contrary, the abrasive grains are easy to fall off, but the optimal binder concentration range is also the best.
