1. grinding gear wheel selection principle

Grinding gear is an important transmission part, its damage or wear will affect the performance and life of the machine, therefore, grinding gear processing and grinding is very important. The grinding wheel is the main tool in the process of grinding and grinding, and the selection of the appropriate grinding wheel is very important to ensure the processing quality and efficiency.

When choosing a grinding wheel for grinding gears, the following points should be noted:

1. Select the appropriate grinding wheel size. The rough grinding wheel has strong grinding ability, but the processing efficiency is low, the accuracy is poor, and it is easy to produce thermal damage, while the fine grinding wheel is the opposite. Usually grinding gear precision is very high, generally use fine grinding wheel, grain size between 80~120 mesh.

2. Select the appropriate grinding wheel hardness. If the hardness of the grinding wheel is too low, it is easy to wear, and if it is too high, the grinding wheel is easy to crack. Therefore, the grinding wheel should be selected within the corresponding hardness range, and the grinding wheel should be selected according to the material hardness and processing requirements of the grinding workpiece.

3. Select the appropriate grinding wheel material. The material of the grinding gear is different, and different grinding wheel materials should be selected. At present, the commonly used grinding wheel materials include alumina grinding wheel, oxide and ferric oxide grinding wheel.

Types of grinding wheels commonly used in 2.

1. Alumina grinding wheel

Alumina grinding wheel is a kind of grinding wheel widely used at present, and its main component is alumina. It has extremely high hardness and high strength, and can grind various metal materials and non-metal materials. Alumina grinding wheels can be classified according to roughness and hardness, and can be applied to grinding gears of different materials.

2. Oxide grinding wheel

The main component of oxide grinding wheels is red iron oxide crystals, which have lower hardness than alumina grinding wheels, but have corresponding grinding ability and strength. Suitable for grinding all kinds of objects, including grinding gear.

3. Iron oxide grinding wheel

The hardness of iron oxide grinding wheel is higher than that of alumina grinding wheel and oxide grinding wheel, but it is more brittle than that of alumina grinding wheel. Usually suitable for grinding high hardness of the workpiece, such as high-speed steel and hard alloy grinding gear material processing and grinding.

In short, for different types of grinding gears, it is necessary to select a suitable grinding wheel for grinding and grinding according to its material and hardness. The correct selection of grinding wheels helps to improve processing quality and efficiency, reduce losses, and extend machine life.