Gear processing method three: forming method gear grinding processing

Do you remember an article shared before EP"Generating method of gear grinding"The article mentioned that there are two ways of gear grinding. So, today I will elaborate on the forming method of gear grinding. I hope it will be helpful to you.

Gear forming method grinding processing:

1. Generally, it is possible to first grind one side of the tooth surface according to the amount of movement of the knife movement, and then add a small rotation to modify the tooth direction; it can also be carried out by a composite method of axial knife movement and radial cutting movement. The tooth profile of the workpiece is modified.But the former is often used for 4~5 high precisionGear processing.

2. The cross-section of the grinding wheel is trimmed into an involute tooth shape that matches the shape of the tooth profile between the teeth of the workpiece.The productivity of this method is high, ten times higher than that of the generative method.

3. The machining accuracy of the machine tool is mainly based on the cross-sectional shape of the grinding wheel and the indexing accuracy. The dressing accuracy of the grinding wheel is very high, and the dressing is more difficult.

4. In the grinding process, the grinding wheel wears unevenly, which will produce a certain tooth profile error. The machining accuracy is lower than that of the generative method, generally 5~6, and the application is not as wide as the generative method.The correct selection of the form of the grinding wheel and the abrasive has a very important effect on the grinding of teeth.

5. The time required for tooth grinding by forming method is related to the number of gear teeth, the total height of the tooth and the helix angle, the outer diameter of the gear, the type of grinding wheel, the grinding allowance, the precision of the gear, and the roughness of the tooth surface.

Compared with the gear shaving process, the gear grinding process improves the contact fatigue strength and bending fatigue strength of the gear, and greatly improves the gear accuracy, which effectively solves the problem.Hardened gearDeformation during heat treatment.

The above is the third gear processing method, the relevant description of forming method gear grinding, including but not limited to, if you have more questions or related product requirements, you can consult EP free of charge.