Probe Filter Distinguishes False Triggering from Real Events

With so much happening in a busy show year between NPE2018, Amerimold 2018 and IMTS 2018, MoldMaking Technology is revisiting some of the technology that was on display. In case you missed it: Marposs featured its WRP60P and WRP45P high-accuracy touch probes with multichannel radio transmission at Amerimold.


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Marposs featured its WRP60P and WRP45P high-accuracy touch probes with multichannel radio transmission at Amerimold 2018 in Booth 116. These probes are designed for high-accuracy five-axis machining centers and milling machines, and Marposs says this makes them well-suited for high-precision industries such as the die and mold, aerospace, aeronautics and biomedical markets.

The WRP45P and WRP60P achieve part positioning, work-piece orientation and origin identification as well as accurate part measurement by automatically detecting the machine axis positions. Relying on piezo-electric technology, these probes provide measurement performance on 3D surfaces with repeatability within 0.25 µm. The incorporation of a special filter helps to distinguish false-triggering events from actual touch events.

The probes operate with the WRI receiver and have a range of 15 m, making them well-suited for large machines. And, since the line of sight between the touch probe transmitter and receiver is not required, complex surfaces and deep-cavity parts can be inspected. Measurements may be performed at depths as great as 1 m because of the modular structure and extensions of the probe.

The multi-channel transmission and option to choose the proper channel enables each application to support as many as four probes, all managed by the same WRI receiver. Additionally, the probes used in conjunction with the WRTS tool setting system enable twin applications where users can check the part and the tool using the same WRI receiver. Multi-spindle applications can also be achieved by installing two applications on the same machine, enabling two probes to be used simultaneously.