The machine has advantages of advanced structure, excellent, excellent configuration, high rigidity, high efficiency, structure and performance characteristics:1, machine adopts column type structure, good rigidity structure;2, the machine functions, can be used for processing cylindrical spur inner, outer teeth, and machining cylindrical helical gear, tooth;3, machine adopts Siemens 802D CNC system, realizes the function of five axis three linkage;4, the cutter spindle motor power is 51KW, is the domestic and foreign similar machine power is the largest, fully meet the requirements of high strength cutting;5, the machining accuracy class is 8, degree of finish is up to 3.2~1.6, can fully meet the needs of high level supporting manufacturers;6, the machine has high production efficiency, compared to conventional slotting machining efficiency 20 times;7, internal, external milling head is driven by a servo motor, automatic adjustment, and can automatically lock (butterfly spring clamping);8, by the milling head machine with inner, outer cutter shaft, with in a certain range, without changing the milling head, which can be respectively internal, external teeth (straight,Helical) processing;9, the machine can be configured according to user requirements of external milling head, and can be arbitrarily changed, according to the different requirements of the processing of milling head;10, the machine has a humanization design function. The machine adopts full protection and open at the top, the operation panel is arranged in the protection cover, to ensure operationFor personal safety; machine adopts panel operation, operation adjustment is very convenient. The machine adopts air cooling, without cooling oil, cutting without fumeProduce, with energy-saving environmental protection requirements; machine tool with chip removal device, iron worktable through intermediate chip hole and through the chip directly into the chip truck,Not only reduces the labor intensity, and ensure safety.