Want to know the cause of the tooth shape error first need to understand what is the tooth shape error. Tooth profile error, also known as tooth profile deviation, refers to the amount by which the actual tooth profile deviates from the design tooth profile, which is recorded in the end plane and perpendicular to the direction of the involute profile.
In forming grinding, the tool used in the gear grinding machine is a grinding wheel. The choice of grinding wheel depends mainly on the grindability of the gear material and the required surface quality, the durability of the dressing roller and the dressable wheel and the required grinding power. The material of the grinding wheel will affect the grinding ability of the grinding wheel, and also affect the surface characteristics of the tooth surface of the grinding gear. The tooth surface roughness determines the size of the tooth waviness and affects the shape error value of the tooth shape.
There are two types of grinding wheels to choose from, one is a dressable grinding wheel and the other is a non-trimmable grinding wheel. For the types of machined parts, the number of replacement parts is generally selected as a dressing wheel. This type of wheel is divided into white corundum (alumina Al2O3) and ceramic wheel. From the economic point of view, more alumina wheels are used. For dressable grinding wheels, the general coarse-grained and high-porosity grinding wheels have a high grinding capacity and a large grinding power after rough dressing, but will also result in a large tooth surface roughness. For the dressable grinding wheel, the grinding wheel with the appropriate size is used to match the reasonable grinding wheel dressing parameters, and the tooth surface roughness is reduced, which can effectively ensure the shape error of the tooth shape.
What should you pay attention to if the saw blade grinding machine saw blade is not used immediately?
It should be laid flat or suspended by the inner hole. The other pieces or feet should not be stacked on the flat saw blade, and attention should be paid to moisture and rust. When the saw blade is no longer sharp and the cutting surface is rough, it must be repaired in time. Grinding does not change the original angle and destroys the dynamic balance. The inner diameter correction of the saw blade, the positioning hole processing, etc. must be performed by the factory. If the processing is poor, it will affect the product use effect, and danger may occur. In principle, the reaming should not exceed the original aperture of 20mm, so as not to affect the balance of stress.
Many manufacturers are working on this dresser. Therefore, while the worm wheel grinding machine is constantly innovating, the grinding wheel grinding process in parallel with it is becoming more and more mature, and shows its unique importance. The pipe fittings overcome the deficiencies of the grinding process of the worm wheel. Experts have commented on the advantages of the forming wheel grinding machine: it is very convenient to solve the tooth shape and the root rounding problem. The worm wheel grinding machine must be equipped with a special diamond roller when grinding the tooth profile. The production cost is high. . In addition, with the same trimming roller, when the diameter of the grinding wheel is different, the actual trimming amount of the grinding wheel changes, and the amount of the toothed trimming of the ground gear also changes. The larger the modulus, the more obvious the problem.
Original: Foshan Li Dexin Machinery Manufacturing Co., Ltd. All rights reserved --- Reprinted