CNC Internal Grinder
★This series of machine tools are mainly used for grinding inner holes, outer end faces, multi-step inner holes and multi-step end faces. It is a multi-purpose production-type high-efficiency machine tool.
★Adopt imported numerical control system and built-in PLC liquid crystal display.
★The grinding wheel feed and table movement are driven by AC servo motor through THK ball screw, and the grinding wheel feed guide is preloaded
Double V-shaped guide rails ensure accurate and sensitive feeding.
★The head frame adopts high-precision spindle bearing, and the speed is stepless by frequency conversion.
★Film chuck or special chuck is used for workpiece clamping.
★On-line detection with automatic measuring instrument is adopted to realize closed-loop control and ensure high machining dimensional accuracy.
★The grinding wheel is driven by electric spindle, oil mist is automatically lubricated, and the frequency converter is stepless speed regulation.
Internal diameter to be ground 30-200mm
Max. depth to be ground 150mm
Max. rolling diameter 400mm
Max.travel of axis Z 600mm
Max. moving speed of axis Z 0-10m/min
Resolution of axis Z 0.001mm
Max.travel of axis X 220mm
Max. moving speed of axis X 0-5m/min
Resolution of axis X 0.0005mm
Resolution speed of grinding wheel frame 36000rpm
Headstock’s rotation angle -5°~+15°
Overall dimensions 4000×200×9200mm
WORKING ACCURACY（Grinding national standard test parts）
Inner hole roundness 0.003 mm
Bore Cylindricity 0.005 mm
Inner hole surface roughness Ra0.32μm