Five-Axis Head for Touch-Trigger Inspection on CMMs


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Utilizing technology developed for its Revo measurement system, Renishaw says its PH20 probe head offers “head touches” for rapid touch-trigger measurement and fast, infinite, five-axis positioning for optimal feature access. Its compact design makes it suitable for new CMM purchases as well as a retrofit for existing CMM touch-trigger installations.

CMM users are said to benefit from the probe’s adaptive positioning, which is designed to accommodate part misalignment and fast calibration routines. An integral TP20 probe mount optimizes the working volume of the CMM, bringing five-axis capability to smaller machines, the company says.

By incorporating the industry standard TP20 touch-trigger probe, users of the PH20 probe head have access to a range of probe modules, providing a selection of trigger forces, directional-sensing options and extensions to meet application requirements. The detachable modules provide crash protection and can be changed automatically using the MCR20 change rack. Companies with existing TP20 systems can to upgrade to PH20 and utilize their existing modules.

The PH20 probe head saves time with a rapid “inferred calibration” technique that determines head orientation and probe position in a single operation. This enables subsequent measurement at virtually any head angle. The system’s design requires no air supply, and it can be mounted to the CMM quill either directly or via a shank using a range of mounting adaptors.

Related Topics


  • How Accurate Is Your Machining Center?

    Virtually every machine tool builder lists, as part of a machine's specification, accuracy and repeatability figures. What's generally not given is the method used to arrive at the figures. Though these methods are defined in linear positioning standards, not all builders use the same standards.

  • Do's And Don'ts For Keeping Dial Indicators In The Game

    Just because dial indicators have been around since the early 1900s, don't expect them to fade away with the last century. This tool's long-term popularity is well earned.

  • Raising the Bar with Ballbar Testing

    Few manufacturing companies rely on ballbar testing to maintain machine tool accuracy as thoroughly as Silfex. Now, advanced training and a move to a Renishaw QC20-W wireless system have enabled the company to take the benefits of ballbar testing to a higher level.