Main features:

This machine is a six-axis CNC gear hobbing machine, of which the CNC shafts are radial feeding shaft (X-axis), tangential feeding shaft (Y-axis), axial feeding shaft (Z-axis), toolpost angle rotating shaft (A-axis), hobbing cutter spindle rotating shaft (B-axis) and worktable rotating shaft (C-axis).

This machine is installed with SIEMENS 828D CNC system and with common communication interface.

1. The main motion is transmitted from the AC spindle motor on the toolpost to the hobbing cutter spindle by three pairs of high-precision cylindrical gears, with the spindle motor power at 17.5kw. A tooth difference anti-backlash mechanism is installed on the end gear pair of cutter spindle and the multi-head hobbing cutter can be used for high feeding rate hobbing.

2. The large-diameter high-precision cylindrical helical gear drive and the rolling bearing support are applied for the worktable to remarkably improve the machining accuracy and efficiency of the machine.

3. The main slideway pairs are applied with rectangular large-plane injection molded and steel-embedded hardened slideway process to realize excellent drive stiffness, high support capacity, good vibration resistance, low friction coefficient, and high motion linearity. Especially, the three-slideway structure is arranged for the X-axis slideways, of which the middle slideway is functioned for guiding and the two side slideways are functioned for carrying, to enhance the stiffness and remarkably improve the guide accuracy and thermal stability.

4. The fundamental components, including bed, adopt the double-wall structure and the arrangement of the ribbed plates are optimized to increase the thickness of main beam wall and guarantee the sufficient structural stiffness for the fundamental components of the machine. The advanced design guarantees abundant stiffness and stability for the machine.