- Firstly, the hobbing principle is used to make the processed bevel gear and the imaginary shovel gear do the relative hobbing work repeatedly. The tool is a planer with two linear cutting edges, which is installed on the tool holder and moves back and forth with the tool holder.
- The tool holder is installed on the shaking table to form an imaginary shovel gear. The hypothetical shovel gear swings from top to bottom and from bottom to top around its axis. The processed bevel gear is installed on the main shaft of the gear box. Move the gear box to make the cone top of the processed bevel gear coincide with the cone top of the hypothetical shovel gear, and make the tooth root angle parallel to the surface through which the tool tip passes.
- During gear cutting, the shaking table and the processed bevel gear make mutually adaptive coordinated movement around the axis, that is, like the meshing of two bevel gears, under such installation, the of the processed bevel gear.
- The axis line intersects with the rotation axis line of the shaking table at a point, which is the center of the machine tool. This mutual movement enables the planer to plane out the correct involute tooth profile.
According to the number and modulus of workpieces, it is determined to plane bevel gears by single tooth splitting method or double tooth splitting method. For single piece and small batch production, the single tooth splitting method is generally used to planing bevel gears.