WG-Series – Fully Automated, Ultra-Precise Worm Thread Grinding Machines

Holroyd Precision's worm grinding machines incorporate our own award-winning 'SMART' probe and self-correction CNC technology. Depending on the model selected, the machine is capable of grinding precision worm gear shafts ranging from 3mm to 500mm in diameter and a thread length of up to 1600mm.

 

All WG-Series machines come equipped with Holroyd's purpose built CNC system providing a simple and intuitive, menu-driven user interface allowing operators to take data from gear drawings, generate standard tooth forms and produce profile grinding paths with ease.

The worm grinding machine offers manufacturers the ability to improve the productivity and efficiency of their worm gear production through the use of 3D measurement and an integrated correction probe. This automated feature removes the need for off-machine inspection, ensuring that any deviations are automatically corrected before the completion of the cycle.

Holroyd Precision leads the way in precision worm gear manufacture - holding the world record for worm gear efficiency which we set at over 98% in 1931.

Key features of the WG-Series worm grinding machine:

  • Holroyd HTG 8-axis CNC system with advanced touch screen interface and award-winning 'SMART' probe and self-correction technology.
  • Fully automatic programmable cycles, including: dressing with full compensation for dressing disk wear and gear tooth grinding with probing and form measurement.
  • Fully automatic grinding wheel balancing system built into machine spindle, with power monitoring for machine overload protection.
  • 2-axis CNC controlled wheel dresser with diamond dressing disk; programmable rough and finish grinding and automatic wheel profile calculation.
  • Optional automatic inspection station - Renishaw SP80 Scanning Probe with resolution of 1µm in X, Y and Z axes for measurement of tooth position shaft run-out, tooth depth, helical lead etc.
  • Digital drives to all CNC servo axes, incorporating fibre-optic Serial Real-time Communications System (S.E.R.C.O.S.) and digital closed loop feedback.

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