PH20

PH20 - a dramatic impact on inspection timescales, capability and flexibility

• PH20 brings 5-axis measurement capability to touch-trigger applications on all sizes of CMM
• Increased throughput - up to 3x faster than indexing heads
• Easy access to features at any angle with infinite positioning
• Faster calibration
• Integral industry standard TP20 probe
• Improved touch-trigger metrology performance
• Available on new CMMs or as a retrofit

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Video: PH20 show reel

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Increased CMM throughput

• Unique 'head touches' allow measurement points to be taken using only the head and not the CMM structure
• 5-axis controlled motion between features eliminates indexing time
• Together, these speed increases result in a typical 3-fold improvement in throughput

Video: PH20 v PH10 with feature count

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Easy access to features at any angle

• Infinite positioning capability guarantees optimal feature access,
  minimising stylus changes, especially when probe-extension
  clearance is small
• 5-axis simultaneous motion allows larger parts to be measured
  on the CMM by minimising the space required around the part
  for head rotation
• PH20 automatically aligns itself with the part coordinate system,
  avoiding stylus collisions and the requirement for accurate
  fixtures

Faster calibration

• Unique 'inferred calibration' technique determines the head orientation and probe position in a single operation, allowing subsequent measurement at any head angle
• Dramatic time savings accumulate as the calibration process is repeated on a regular basis to comply with quality procedures or following a probe crash
• Enhanced metrology performance is also available by calibrating the probe tip at the feature orientation

PH20 system

• Integral TP20 probe mount to optimise working volume of CMM
• Compatible with the existing range of proven TP20 probe modules: wide selection of trigger forces, directional sensing options and extensions to meet application requirements*
• Detachable modules provide crash protection
• Modules can be changed automatically using the TCR20 change rack

* Except for the extended force module

Improved touch-trigger metrology performance

• Repeatability is improved when 'head touch' method is used
• Accuracy is improved by using feature orientation based calibration and 'head touches'
• Pre-travel variation is automatically compensated
• Module changing – automatic tip offset correction

Available with your new CMM or as retrofit to existing equipment

• Compact design – suitable for a wide range of CMMs using shank or quill mounting
• Renishaw CMM controller – I++DME communication, wide selection of metrology software
• Index head compatibility – no requirement to modify existing programs in the majority of cases
• Integral TP20 probe – allows re-use of existing equipment
• Mechanical bearings – no air supply required

Hardware integration

• The PH20 system is only available with the UCC T5 controller
• SPA3 is a servo power amplifier used to power the CMM
• MCUlite-2 / MCU5 / MCU5-2 / MCU W / MCU W-2 are the multi-function hand control units available for use with the PH20 system

Head axis range

The PH20 head has two rotary axes (A and B) and is normally mounted on the CMM quill to create a 5-axis measuring system.

The PH20 head's B-axis is mounted on the CMM quill and can rotate continuously in both directions.

The A-axis, which is orthogonal to the B-axis, has  ±115° of travel.

The head can only be mounted in the vertical orientation shown below.

Dimensions

Dimensions in mm (inches)

Recommended range of stylus lengths for use on PH20

Specification

• Probe trigger versus probe overtravel force 
• Trigger force gauge
• PH20 Head touch metrology data
• PH20 ISO10360-2 data compared to PH10
• Tip correct definition