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This Okuma GENOS L200E-MY Lathe was built in Taiwan in 2014. It has a production record of 23768 hou
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Hexagon introduces new precision non-contact CMM sensor

Chromatic white-light sensor increases options for rapid non-contact scanning, helps electronics and medical manufacturers succeed with emerging technologies

Posted on 27 Feb 2021 and read 1250 times
Hexagon introduces new precision non-contact CMM sensorNon-contact sensor pictured inspecting a delicate motor coil — a tricky part to inspect at scale

A new high-speed, non-contact sensor for use with coordinate measurement machines (CMMs) from Hexagon’s Manufacturing Intelligence division addresses growing demand from the consumer electronics and medical industries to rapidly inspect delicate parts with a range of surface finishes, including those produced via additive manufacturing, without applying damaging pressure.

Manufacturers of components with vulnerable surface finishes often struggle to achieve optimal efficiency because traditional tactile inspection can be time consuming, and parts are often damaged during measurement. In cases where 100% of components must be inspected, the deformation of delicate surfaces impairs productivity and, ultimately, the bottom line.

The new HP-OW chromatic white light sensor provides increased measurement speed and flexibility for OEMs and offers contract manufacturers the opportunity to employ new technologies and materials in production.

The sensor’s ability to measure components with transparent, polished, rough, and matte finishes makes it easy to quickly and accurately measure parts made with delicate materials – including electronics components such as LED vehicle lights and solar panels.

Non-contact capabilities also offer high throughput inspection of medical devices, such as surgical implants, where every part must be inspected with high accuracy.

Additive manufacturing (AM) processes pose unique challenges as parts usually have to be measured throughout the production process to ensure quality, but the cycle time to perform precision inspection of rough unfinished parts can be prohibitive.

Great accuracy

As a new option in a line of specialised sensors extending the range of measurement technologies that can be used with a single CMM, the chromatic white-light scanning sensor offers an efficient method to scan 3-D printed parts with great accuracy.

Wolfgang Madlener, VP machine tool and sensor devices, said: “We are excited to introduce these highly specialised sensors to address the need for continuous sampling at high accuracy and speed. We recognise that our customers need new approaches to address evolving product designs, manufacturing techniques and the agility to address new markets.

“It is a given that the CMM must be accurate – what is important today is that this valuable asset can be adapted to solve each new challenge with the best available sensor and software combination for the measurement.”

Compatible with Hexagon’s GLOBAL S and OPTIV M CMM lines, the new chromatic white-light sensor can help manufacturers derive greater value from one piece of equipment by expanding measurement capabilities to a wider range of materials.

This is complemented by two new touch-trigger probes that offer robust high-accuracy measurement of delicate parts. Ideal for novice to experienced users, the highly durable HP-THDe is a modular touch-trigger probe that delivers superior repeatability, adaptive triggering, and faster stylus-change capabilities compared to common touch-trigger probes.

Also suitable for non-experts, the highly durable HP-TMe touch-trigger probe is available in four versions that offer a range of measuring forces to suit a broad range of application requirements. The ability to automatically switch between tactile and non-contact sensors in response to changes in application accelerates the inspection of a wide range of parts with different material types.

For a part such as a windscreen, where multiple different measurement techniques are required for the inspection, the overall process efficiency can be improved by automating inspection from start to finish with a sensor-changing rack.

Updates to Hexagon’s PC-DMIS metrology software support the new sensors and enable the efficient programming of multi-sensor inspection processes, including rack automation, from a single pane of glass.

Visit Hexagon’s new ‘Can I measure it?’ microsite for free resources exploring how measurement challenges can be overcome through more effective strategies and the best use of available CMM and sensor technologies.