The basic machining principles of Oerlikon and Klingelnberg Spiral bevel gears are the same. The main difference between them lies in the cutter head and the different methods of dealing with the displacement coefficient. The tool spindle of Klingelnberg Spiral bevel gear milling machine cannot be tilted. The universal double-layer cutter head is adopted, and its rotation center is adjustable, while the tool spindle of Oerlikon spiral bevel gear milling machine can be tilted. The inner and outer cutting blades are installed on an integral cutter head, and its rotation center coincides and cannot be adjusted.
The high displacement coefficient of Klingelnberg Spiral bevel gear is solved iteratively on the condition that the sum of the sliding ratio of two-phase meshing top and tooth root is equal, while Oerlikon spiral bevel gear is solved iteratively on the condition that the sliding coefficient of two-phase meshing top and tooth root is equal. Oerlikon company has developed mechanical gear milling machines, including skm1, SKM2, SM3, S17 and S19, for the machining machine tool of long external cycloid bevel gear.
In 1973, Oerlikon company applied PLC control to S17 machine tool for the first time, marking that the spiral bevel gear and hypoid gear cutting machine tool has entered a simple NC stage. After that, Oerlikon company developed S25 and S35 of the full CNC gear milling machine to realize the automatic adjustment of the machine tool, and can process gears in the form of arc and cycloid.
The mechanical gear milling machine of Klingelnberg company has AMK series. Some models of machine tools can be used for scraping hard tooth surface, mainly using double-layer cutter head. The CNC gear washing machine has KNC series, which can realize the automatic adjustment of the machine tool, automatic tool change and workpiece loading and unloading. It can also correct the tooth surface contact area through the display of the operation position. After acquiring Oricon, Klinger company developed c-series full CNC gear cutting machine tools, and added arc gear processing and dry cutting functions to c-series machine tools.
Many countries such as Japan and Italy have also conducted in-depth research and Discussion on spiral bevel gear processing technology, but its influence in the world is far less than that of Gleason, Oerlikon and Klingelnberg, and the gear cutting principle and the structural form of machine tool are basically the same as Gleason gear system.