What are the operating essentials of gear machining process

Gear processing usually use hobbing machine and gear shaping machine to work, for the adjustment and maintenance is convenient, for large-scale production for the production efficiency will be low. Later for hob, insert blade grinding after the generation of plating technology, can make the tool can significantly improve the use of time, can reduce the number of tool change and grinding time, improve efficiency. In the process of picking teeth, radial shaving technology has great advantages, including high efficiency, design tooth shape, tooth direction modification is easy to achieve.

In the process of heat treatment, the gear should be carburized and quenched, so as to ensure its good mechanical properties. For the products that are no longer grinding after heat, stable and reliable heat treatment equipment is also necessary. In the process of grinding, it is mainly to finish the inner hole, end face and outer diameter of shaft after heat treatment to improve the dimensional accuracy and reduce the shape and position tolerance.

Gear processing is mainly to control the accuracy of transmission between gears when the gear is running, such as the stability of the transmission, the fluctuation of instantaneous speed, if there is alternating reverse operation, whether the tooth backlash reaches the required range, if there is impact load, the precision should be slightly improved, so as to reduce the damage caused by impact load to the gear.

If the above design requirements are relatively high, the gear precision will also be set a little higher, otherwise can be set lower. However, the gear precision is set too high, will rise the processing cost, need comprehensive balance. (tooth thickness) deviation level is also the level given by the designer under specific conditions. Precision transmission is higher, general machinery is lower, closed transmission is higher, and open transmission is lower.