G32-SS Internal cylindrical grinding machine

Product Overview

This series of internal cylindrical grinding machines are specially designed for high-precision internal hole processing and are suitable for internal cylindrical and end face grinding of various parts such as sleeves, bearings, hydraulic valve bodies, and precision molds. Adopting advanced numerical control systems and high-rigidity structures, it ensures that the processing accuracy can reach IT5 grade (roundness ≤0.001mm, surface roughness Ra≤0.2μm), meeting the strict requirements for precision inner holes in industries such as aerospace, automotive manufacturing, and medical devices.

Core technologies and performance parameters

1. Machine tool structure design

High-rigidity bed: Made of high-quality cast iron (HT300) and treated with aging, it has strong seismic resistance and small thermal deformation.

Precision spindle system

Workpiece spindle: Driven by variable frequency motor, with a speed range of 50-800 rpm (servo spindle can be optionally equipped to achieve stepless speed regulation).

Grinding spindle: High-precision electric spindle, with a maximum speed of 60,000 rpm (optional air float spindle, vibration ≤0.5μm).

Guide rail and feed system:

X/Z axis: Linear guide + ball screw (hydrostatic guide is optional) is adopted, with a repeat positioning accuracy of ±0.001mm.

B-axis (optional) : CNC rotary table, indexing accuracy ±5 ", achieving one-time clamping and forming of conical holes/step holes.

2. Numerical control system and intelligent functions

Control system: Standard configuration is Siemens 840D sl (or Fanuc 31i-B), supporting five-axis linkage.

Intelligent process library: Equipped with over 100 grinding parameters of materials (such as GCr15, titanium alloy, ceramic, etc.), it automatically matches the linear speed and feed rate of the grinding wheel.

Online measurement compensation: Integrated laser tool setting instrument and contact probe, real-time correction of dimensional errors, processing accuracy improved by 30%.

Adaptive grinding: The grinding wheel wear is monitored by vibration sensors, and the dressing cycle is automatically adjusted.