The method of high precision gear processing

There are still many ways to process high-precision gears. Let's not introduce them one by one. Let's simply talk about the continuous indexing generation method!

The gear grinding machine which uses the continuous indexing generating method uses the worm wheel to grind the gear teeth, so it is called worm wheel gear grinding machine. The principle of its operation is the same as that of gear hobbing machine, but the axial feed movement is generally completed by the workpiece. Because in the process of processing is continuous grinding, so its production power in all kinds of gear grinding machine is relatively high. Its defect is that the dressing of grinding wheel is difficult, and it is not easy to reach high precision. When grinding different modulus gears, the grinding wheel needs to be replaced. The speed of each transmission link in the transmission chain connecting the grinding wheel and the workpiece is very high, and it is easy to produce noise by mechanical transmission, and the wear is relatively fast. This grinding method is suitable for mass production of small and medium modulus gears.

The conflict between high-precision gears is rolling conflict, small resistance, wear is small. The circular arc cylindrical gear's conflict is the sliding conflict, the conflict force is big, the abrasion is also big. In general, involute gear is used. As long as the requirements are not high, circular cylindrical gear will be used for the convenience of gear processing.

Now let's take a look at the difference between involute spline and high-precision involute cylindrical gear: 1. High precision involute cylindrical gear is kneading transmission, and involute spline is appropriate, so coupling; 2. Gear has fewer teeth, and spline can be less than gear's fewer teeth; 3. The intention of application is different, gear is meshing transmission, and spline is appropriate With coupling;

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