Product category:
Probes, sensors, tool detection for machine tools
News Release from: Heidenhain (GB) | Subject: TS 740 workpiece probe
Edited by the Manufacturingtalk Editorial
Team on 07 December 2007
Touch trigger probe has low contact
force
Latest touch trigger workpiece probe has a a low probing force along with an infra red system to transmit the trigger signal to the machine control.
Heidenhain's latest development, the TS 740 workpiece probe, has an innovative design that requires only a low probing force The probe also features an infra red system to transmit the trigger signal to the machine control
This article was originally published on Manufacturingtalk on 29 May 2001 at 8.00am (UK)
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Heidenhain uses three high-precision sensors arranged between the contact plate and the probe housing to obtain the trigger pulse through force analysis.
This method ensures extremely homogeneous probing accuracy over 360 deg, said the company, with precise trigger characteristics in all directions.
The functionality of these newly developed sensors is completely different from the optical sensors that are traditionally used on touch trigger probes, said Heidenhain to manufacturingtalk.com.
Each sensor makes use of three piezo-electric elements, and when probing takes place the forces act on these elements to generate a 'charge' that is detected by the electronics and converted into the trigger signal.
The result is a probing accuracy of <= +/-1 micron and a probing repeatability of 2 delta <= +/-0.25 micron, making the TS 740 one of the most accurate 3D touch probes available.
Heidenhain said that the use of low probing forces is sometimes associated with a higher sensitivity to noise and false readings.
However, the TS 740 is designed in such a way as to eliminate this potential problem.
The stylus is rigidly connected to a moving contact plate, which in turn is fitted into the probe body under pre-load.
This pre-load is such that the fastest of machine movements, such as tool change, does not cause accidental deflection of the stylus.
For the user, this touch trigger probe suitable for all modern machine tools and CMMs.
In summary, the new TS740 features higher probing accuracy and repeatability at lower probing velocity and forces, with the next generation Heidenhain electronics reducing the probing cycle time while extending battery life. Request a free brochure from Heidenhain (GB) ...
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