The accuracy assurance of Swiss-Type Lathes (CNC Swiss Lathes) relies on a "Test-Compensate-Verify" closed-loop system, covering four core areas:

1. Static Geometric Accuracy Testing

• Bed straightness (≤0.005mm/m)

• Spindle axial float (≤0.001mm)

• Tool turret repeatability (±0.001mm) (Keywords: CNC machine tool calibration service)

• Tools: Laser interferometer (positioning calibration), Dial indicator (spindle runout check)

• Key Tests:

2. Dynamic Performance Validation

• Axis positioning accuracy (e.g. ±0.003mm/100mm via laser interferometer)

• High-speed circular interpolation (Ballbar test)

• Spindle thermal stability (Max. 25℃ rise) (Keywords: Swiss lathe dynamic accuracy)

• Tools: Ballbar tester (contouring error), Vibration analyzer

• Critical Metrics:

3. Error Compensation Techniques

• Thermal drift compensation (temperature sensors + model)

• Servo gain tuning (vibration suppression) (Keywords: CNC error compensation)

• Pitch error compensation (leadscrew correction)

• Backlash compensation (0.001–0.01mm for reversal gaps)

• CNC System Compensation:

• Real-Time Adjustments:

• Machining Verification Standards

• Dimensional tolerance ≤±0.005mm

• Roundness ≤0.003mm

• Surface roughness Ra≤0.4μm (Keywords: Precision part certification)

• Test Pieces: NAS 979 (complex milling/turning), VDI 3441 (cylindrical)

• Acceptance Criteria:

Industry Pain Points & Solutions:

• Thermal drift → Temperature-controlled workshop + Real-time compensation

• Dynamic error fluctuation → High-precision ballbar + Servo parameter optimization

• Long-term accuracy loss → Laser interferometer recalibration every 6 months

Ultimate Goal: Ensure Swiss-Type Lathes maintain micron-level (µm) machining accuracy during sustained high-speed operations, meeting demands in  precision manufacturing.