quality
Touch trigger probe
range enhanced
HIGH accuracy and repeatability are core criteria for
touch trigger probes. Heidenhain’s latest development,
the TS 740 workpiece probe, maintains the standards; it
also features an innovative design to create a low probing
force, along with an infra red system to transmit the
trigger signal to the machine control.
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 o, 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. 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 ≤ ±1μm and a
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probing repeatability of 2 (omega) ≤ +/- 0.25μm, making
the TS 740 one of the most accurate 3D touch probes
available. 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.
The result, as far as the user is concerned, is a touch
trigger probe suitable for all modern machine
tools/CMMs. In summary, the new TS740 feature 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.
www.heidenhain.co.uk
Enquiry Number: 37
NEW
Enquiry Number: 38
62 MWP january 2008
Unit 15, Bordon Trading Estate,
Bordon, Hampshire GU35 9HH
Telephone: 08708 50 90 50
Fax: 08708 50 90 60
www.bowers.co.uk
sales@bowers.co.uk
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