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 rotating shaft (A-axis), hobbing cutter spindle rotating shaft (B-axis) and worktable rotating shaft (C-axis).

This machine is installed with SIEMENS 840DSL CNC system and with common communication interface.

1. The motion of the AC spindle motor directly installed on the toolpost is transmitted to the hobbing cutter spindle by three high-precision cylindrical helical gear pairs to remarkably reduce the drive error, improve the drive accuracy, and enhance the related drive characteristics and drive stiffness.

2. The worktable is applied with high-precision double-lead worm gear drive and is designed with damping mechanism. The spindle unloading cylinder is installed beneath the worktable to reduce the load of C-axis motor and prolong the life of worktable circular slideways.

3. The foundation components, including bed, adopt the double-wall structure and the arrangement of the ribbed plates is optimized to guarantee the sufficient structural stiffness for the foundation components of the machine.

4. The main guiderail pairs adopt rectangular large-plane guiderails with injection molded movement faces and the ball screw drive is applied to ensure good drive stiffness, high support capacity, and high motion linearity.

5. 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.

6. The rear column tailstock is designed with rotating mechanism to ease the loading and unloading of large workpieces.