(1) Gear hobbing machine: it can process helical gear shafts with modules below 8

(2) Milling machine teeth: straight racks can be processed

(3) Slotting machine: can process internal teeth

(4) Cold punching machine: it can be processed without chips

(5) Gear planing machine: can process 16-module large gears

(6) Precision cast teeth: cheap pinions can be processed in large quantities

(7) Gear grinding machine: it can process the gears on the precision mother machine

(8) Casting gear of die-casting machine: most non-ferrous metal gears are processed

(9) Gear shaving machine: It is a kind of metal cutting for gear finishing

gear shaft

Gear processing methods include forming methods and generating methods. The forming method is to directly use the gear forming milling cutter to mill out the tooth valley. The advantage is that the gear can be obtained on the milling machine, which is considered when the equipment is limited. There are many shortcomings. In order to reduce the number of tools, the number of teeth is divided into segments, and one tool is used in a segment of teeth, so the tooth profile will bring systematic errors. The generation method is to use the tool and the gear to form the generation movement to process the gear. There are mainly gear hobbing and gear shaping. Gear hobbing is processed by simulating the meshing of worm gears. Shaping is machined by simulating the meshing of two gears. Gear hobbing is used a lot, because the tooth shape of the hob hob is straight, which is convenient for processing, while the tooth shaper is a shovel-backed gear, and the tooth shape is involute, which is not as convenient to process. However, gear shaping can be used in some positions that cannot be machined by hobbing, such as internal teeth and double or multiple gears with too short retraction distance. In the finishing of gears there are shaving and grinding.