BYS 7232

The main performance and characteristics of the machine tool

• The machine tool is an eleven-axis five-linkage CNC gear grinding machine, this series of gear grinding machine is a full CNC high-precision and high-performance gear grinding machine developed by Chongqing Machine Tool and United Kingdom PTG (HOLROYD) Company in strict accordance with the development process of European high-end precision machine tools;
• The linear uranium screw pair of the machine adopts high-precision screw rod imported from Europe with preload, of which the Y-axis and Z-axis screw are made of ceramic ball screw, which improves the transmission rigidity and greatly improves the service life of the screw;
• The grinding wheel spindle adopts high-power integral motor spindle imported from Germany, the spindle bearing adopts a group of paired ceramic ball bearings imported from Europe, each linear axis adopts high-rigidity rolling linear guide rail imported from Europe, and adopts Heidenhain light shed ruler detection to achieve full closed-loop control, greatly improve the drive rigidity and dynamic response speed, and effectively ensure the grinding quality and stability.
• The machine adopts Siemens 840Ds/one system, through the system’s multi-channel control platform, flexible control of eleven CNC axes, to achieve automatic workpiece clamping, automatic grinding wheel dressing, high-speed gear alignment, automatic grinding teaching, automatic dressing teaching, automatic allowance distribution and automatic grinding of the entire processing process of automatic control. The operation interface of the machine tool adopts the man-machine interface (zero programming) independently developed by Chongqing Machine Tool to realize the automatic generation of man-machine dialogue, gear parameter calculation, gear cutting and grinding wheel dressing programs;
• The machine software have perfect functions and are in the leading position in China, which can realize various complex modification functions such as arbitrary tooth direction modification, tooth surface distortion compensation, point dressing (arbitrary tooth shape dressing), tooth surface anix grinding, double pressure angle asymmetric gear grinding, small taper gear grinding, etc.;
• YS7232G is mainly for the precision grinding of new energy vehicle gears, which can meet the very high inspection and acceptance requirements of new energy vehicle gears, and the main accuracy can reach: the average value of tooth slope is +0.002mm, the consistency V value of tooth slope is ≤0.005mm, the tooth shape and tooth waviness is ≤0.0018mm, and the tooth surface roughness is Ra≤0.32um.