SK 7620B CNC internal thread grinding machine
Mainly used for grinding cylindrical, conical internal thread ring gauge
Key words:
Classification:
Complete set of thread ring and plug gauge processing equipment
Product accessories:
- Main use
- CNC system configuration
- Working accuracy
- Technical features
- Main specifications and parameters
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- Commodity name: SK 7620B CNC internal thread grinding machine
Mainly used for grinding cylindrical, conical internal thread ring gauge
SK7620B CNC internal thread grinding machine is a high-precision CNC internal thread grinding machine specially designed for measuring tool industry. This machine is mainly used for grinding cylindrical and conical internal thread ring gauges. (Tooth types include triangle, partial ladder, serration, etc.).
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The accuracy of threads with a pitch of less than 6mm is:
• Adjacent pitch error: 0.0025mm
• In 25mm length: 0.003mm
• In 100mm length: 0.004mm
One-way pitch error distribution
• Tooth profile section flank angle deviation: 6
Thread diameter cylindricity error: 0.005mm
• Surface roughness: Ra 0.32μm
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• Using SIEMENS 840D high-end CNC system to achieve four-axis three linkage;
• The headstock spindle adopts a high-precision rolling bearing structure, and the tail of the spindle is equipped with a high-precision rotary encoder as a reference element for rotation and indexing;
• The grinding wheel spindle adopts Swiss IBAG high-speed electric spindle, high precision, long service life, AC frequency conversion speed regulation, to achieve constant linear speed control of the grinding wheel;
• The automatic adjustment of the screw lift angle of the grinding wheel frame is driven by the AC servo motor through the reducer and elastic coupling to drive the high-precision worm gear pair to automatically adjust and lock;
• Adopt diamond disc wheel CNC grinding wheel dresser, fixed on the back side of the head frame. Equipping special repair software, when the grinding wheel frame automatically rotates to the horizontal position, through the Z axis and X axis linkage interpolation movement to achieve various types of grinding wheel dressing;
• Worktable movement by AC servo motor, planetary gear unit through the elastic coupling, high-precision ball screw to achieve longitudinal movement of the worktable;
• The horizontal feed movement of the grinding wheel frame is realized by AC servo motor, elastic coupling and high-precision ball screw pair to realize the longitudinal movement of the worktable.
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• Maximum chuck rotation diameter: 300mm
• Maximum workpiece length: 200mm
• Center height: 200mm
• Grinding thread diameter: 25~200mm
• Maximum length of grinding thread: 125mm
• Grinding thread pitch
Metric: 0.5~24mm
Imperial: 3~40 teeth/inch
Maximum screw angle of grinding thread: 12 ° right and 12 ° left
• Number of grinding thread heads: 1~45 (arbitrary)
• Workpiece speed: 0.2~100rpm
• Maximum speed of grinding wheel spindle: 24000rpm
• Grinding wheel size
Maximum diameter: 100mm
Minimum diameter: 20mm
• Machine weight: 5000kg
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SK 7632B CNC internal thread grinding machine
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