Machine Description:

N40 CNC hobbing machine is a 6 axis and 8 axis CNC hobbing machine, equipped with the HIgerman CNC system, can be developed or indexed by the way of machining gear shaft, pinion (straight teeth, helical teeth, drum teeth, cone teeth, etc.). The axial feed Z-axis consists of Z and Z1 axes, which can be moved individually or simultaneously, making product loading and unloading easier and laying the foundation for automation. Workpiece worktable and tailstock worktable adopt 2 axes (C and C1) to rotate synchronously, so that the work piece is firmer when double top machining. The machine structure is compact, a variety of automation applications, especially suitable for small and micro gear batch processing.

Machine Features:

■ Fully CNC using the Higerman or Syntec CNC system, each axis of the machine tool for CNC control and B, C, X, Z as the linkage axis, by the electronic gear box (program) to complete the cutting tooth tooth movement, feed compensation motion, differential feed compensation motion, Increased the function of the machine tool (such as rolling small taper and drum gear become very simple); By shortening the transmission chain, the positioning accuracy and repeated positioning accuracy of each axis can be improved through numerical control compensation after using semi-closed loop or full closed loop control, so as to improve the machining accuracy and CP value of the machine tool and increase the reliability of the machine tool. The time of calculating and changing the gear hanging wheel and the differential hanging wheel, feeding and the spindle shifting are eliminated when changing the variety, thus reducing the auxiliary processing time and increasing the flexibility of the machine tool. The structure of the machine is compact, the worktable and the tailstock worktable use 2 axes (C and C1) to rotate synchronously, so that the work piece is stronger when the double top machining, the axial feed Z axis is composed of Z and Z1 axis, which can be moved separately or at the same time, making the product loading and unloading easier, and laying the foundation for the realization of automation.

■ High efficiency machine with high speed tool spindle and high speed of the worktable, while ensuring high rotation accuracy (radial runout accuracy ≤0.002mm, axial movement accuracy ≤0.002mm); Greatly improve the cutting efficiency; It is suitable for high speed cutting with multi-head hob with strong cutting capacity and high processing efficiency. Adopt built-in oil pressure chuck locking device and flange type fixture installation.

Double and multi-coupling gears with different modules, different numbers of teeth, different helical angles and different helical directions can be used to complete the tooth rolling in a single installation, and can also be used for single degree milling.

■ High precision adopts a large number of imported famous brand accessories to improve the speed, accuracy and reliability of the machine tool. High precision has high rigidity linear guide rail, ball screw, rolling bearing, precision spindle, servo motor and numerical control technology with pre-loading, so that the accuracy of the machine tool can be guaranteed and improved under the condition of high speed machining;

■ The body of the high rigidity machine is made of HT300 grey cast iron with excellent wear resistance and shock elimination. After two stress relief annealing, it ensures dimensional stability and prevents deformation and cracking. The machine tool adopts imported HIWIN with a pre-loaded, no-backlash ball screw driven feed system and adopts imported roller type damping and pre-load linear rolling guide, without maintenance and maintain long high precision, the table is divided by the elimination of clearance worm gear worm pair and damping mechanism;

■ Functioned composite workpiece can be completed in a single clamping process, so as to improve the processing efficiency and accuracy of the workpiece, such as: automatic feeding, gear hobbing, secondary gear hobbing, multi-process gear hobbing, deburring, automatic blanking;

■ High degree of automation with automatic feeding, feeding  automatic clamping device, 24 hours continuous working ability;

Environmentally friendly installation of oil mist separator, so that the discharge is only oil-free fog;

Intelligent and information digital control technology, sensor technology, information technology and network control technology together to make the intelligent level of CNC gear machining machine tools higher. It can realize the functions of error compensation, collision prevention, overload protection, tooth meshing, machining allowance distribution, tool wear, zero programming interface, multi-functional processing software, automatic identification, remote control and remote diagnosis when the robot is moving the workpiece between machine tools.

■ High flexibility to achieve short preparation time for mass production;

Product design, manufacturing and acceptance criteria:

In line with GB/T9061-2006 metal cutting equipment general technical conditions

In line with GB15760-2004 metal cutting equipment safety protection general technical conditions

In line with GB/T10095-2008 6 class cylindrical gear precision standard

It conforms to GB/TT2363-1990 standard for basic tooth profile and precision of 6-stage small modulus involute cylindrical gears

Comply with ISO international standards for machine tool design, manufacturing and measurement

Comply with noise level ISO 1683:2015-09

Machine tool static accuracy

* Radial runout of spindle ≤0.002mm; The runout of the spindle end face is less than 0.002mm;

* The concentricity of C and C1 spindle is less than or equal to 0.003mm

* Lead screw error ≤0.008mm (full stroke), linear rolling guide precision ≤0.003mm

* Repeated positioning accuracy of Z,Z1 and X axes is ±0.002mm

* Precision grade of machining gear: GB/T10095-2008 grade 6 and GB/TT2363-1990 grade 6

Machine parameters:

Machine Appearance: