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1)
Balance of grinding wheel unbalance mainly by grinding wheel manufacturing and installation is not accurate, wheel center of gravity and the rotating shaft misalignment of.
The damage imbalance is mainly manifested in two aspects: on the one hand, the grinding wheel at high speed, cause vibration, the vibration of workpiece surface polygonal mark;
Unbalanced acceleration, on the other hand, the main shaft vibration and bearing wear, serious when straight into a grinding wheel is broken, and even cause an accident.
As a result, the demand is greater than or equal to 125 mm diameter grinding wheel static balance after mount chuck, grinding wheel after plastic trim or found in the work don't balance, shall be repeated static balance (
2)
Matching problem matching problem is mainly refers to the installation of the chuck and the grinding wheel matching problem.
According to the standard requirements, the grinding wheel chuck diameter shall not be boy be installed the 1/3 of grinding wheel diameter, and the corresponding provisions of grinding wheel wear to 10 mm diameter than the diameter of a chuck should be replaced when new so there is a spider and the matching problem of grinding wheel, otherwise it will appear such circumstance, 'big mara car' cause equipment material waste;
'Small mara carts' and do not conform to the requirements of the safety, easy to cause accidents.
Therefore, chuck close match with grinding wheel, on the one hand can save equipment and materials, on the other hand, as to meet the requirements of safety operation.
In addition, between grinding wheel and card 2 should also be equipped with chuck diameter 2 mm in diameter, thickness of 1 ~ 2 mm soft mat.
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3)
Protective cover is one of the main grinder protective devices, whose role is: when the grinding wheel in the work for destruction, cover can have such as pieces of grinding wheel, ensure the safety of personnel.
The shape of the grinding wheel protective cover, which has two kinds of round and square, the largest opening corner does not allow more than 90: shield materials for tensile strength of not less than 415 n/was steel.
Replace the new grinding wheel, the installation of protective to firm and reliable, and protective cover shall not be arbitrarily remove or scrap.
3.
Matters needing attention in the process of grinding wheel used (
1)
Profile grinding problem in the daily use of grinder, we can often see that some kinds of class of the operator's regardless of the types of grinder, grinding wheel, using the side of the grinding wheel for grinding at random, this is a serious violation of safety operating rules of peccancy operation behavior, according to the work place with circular surface surface grinding, profile grinding wheel should not be used for the radial strength of the grinding wheel is larger, the axial intensity is small, the operator gets too will cause wheel broken, even hurt, in the actual use should be prohibited in the process of this kind of behavior (
2)
Positive operation problems in the course of everyday use, many operators are always used on grinding wheel, the reason is that this direction can move, actually this kind of behavior is the behavior of grinder in the operation should be specifically prohibit.
According to the operation procedures, the use of grinding wheel confidential work, the operator should stand in the side of the grinding wheel, shall not be operated in the front of the wheel, so as to avoid grinding wheel is out of order, grinding wheel femtosecond wheel broken hurt fly out of 3)
Hard operational problems when using grinder, some operators, especially the young operator, for grinding speed, force is too large, it is a very safe operation behavior.
Any wheel itself has a certain strength, it is likely to be due to the grinding wheel broken, and even fly out of hurt, is also a kind of behavior should be banned.
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4)
Common problems in the actual operation in daily operation, also have such happens, someone to catch production tasks, rob work time, two seconds A Taiwan turbine operating at the same time, this is A serious violation of operation behavior, should be strictly prohibited.
Under a grinder is not enough, can use to add grinder solution, and should never be allowed to share a grinder
