1. Technical requirements: High thickness worker 185mm and continuous gear shape. The outer diameter of the external gear machining is 18.72mm. Use a circular pin plug gauge to measure the middle and lower dimensions of the two diagonal teeth. Dimensional error<10 μ m.
2. Technical difficulty: The size of the tooth wall is important because the transmission between gears relies on the contact between the tooth walls. Therefore, four stages of processing are performed in the program to reduce work deformation and position the introduction line at the tooth peak, and then grinding is used for polishing.