1. GSM1250 A3 B3 CNC Gear shaper is longitudinally arranged with oscillated cutter relieving and the radial feed of the worktable is made on three rectangular guide ways. The machine bed, column, cutter head and table are with better rigidity in structure and driving;
2. GSM1250 A3 B3 Gear shaping machine is a CNC machine with three axes being controlled simultaneously for the cutter spindle rotation, the worktable rotation and the radial feed of the worktable;
3. GSM1250 B3 is driven by a variable frequency motor and GSM1250 A3 is driven by a spindle servo motor; stepless speed regulation and automatic changeover can be made;
4. The cutter spindle can be stopped automatically at the up position and can be raised by a new type structure;
5. A large-diameter zero-degree worm and segmental zero-degree worm wheel transmission mechanism which applies a constant cutting force during the whole cutting process, is adopted for the cutter spindle movements, in order to guarantee sufficient cutting force for the cutter spindle;
6. A new type double-roller and tow-way relieving mechanism is adopted for carrying out an accurate, stable and low noise cutter relieving motion;
7. A tangent cutter relief is possible to prevent the phenomenon of cutter interference;
8. A safety enclosure, which has an excellent visibility for the operating conditions and is easy to be operated, is equipped on the machine to prevent oil splash and an auto chip conveyor is provided on the machine;
9. An independent forced lubrication system is used for the cutter head and timed and quantitative lubrication is adopted for the other parts of the machine; a chip-flushing oil gun is equipped;
10. SIEMENS 828D and servo system are equipped and an air conditioner may be provided for the independent sealed electrical cabinet;
11. A large number of coolant is used for the cooling system and the machine bed is designed as a coolant tank for the timely heat dissipation and stable accuracy;
12. Timed and quantitative lubrication is adopted between work spindle and worktable in order to reduce the moment and prolong the service life of worm and worm wheel pair;
13. A separate hydraulic pump station is available for the quick return of oil and to prevent the oil from being mixed;
14. GSM1250 A3 B3 CNC Gear shaper is equipped with a reducer on the servo motor of worktable rotation axis (Y-axis), which can increase the capacity of the motor;
15. A built-in spring and new-type cutter adapter have been adopted in the cutter head;