Faster, smaller co-ordinate measuring machines
A
Mitutoyo (UK) product story
Edited by the Engineeringtalk editorial team
Feb 1, 2002
A new range of co-ordinate measuring machines require less installation space but still meet the increasing demand for faster measurement times, whilst maintaining the highest accuracy
Mitutoyo's Quick Vision Accel (QVA) is designed to meet the increasing demand for faster measurement times, whilst maintaining the highest accuracy.
A Laser Auto Focus system which can be added, further enhances its performance.
The QVA builds upon Mitutoyo's extensive Quick Vision range with these latest models having the added advantage of being more compact and requiring less installation space.
This is a result of the moving bridge structure rather than the moving table design of previous QV systems.
The moving bridge structure also allows a simpler design of workplace fixture, resulting in a significant reduction in the man hours needed for fixture fabrication and inspection.
In performance terms, QVAs' primary benefits are speed, accuracy and repeatability.
X and Y axes are driven at 400mm/second, around twice the speed of previous QVs.
An accuracy of U1xy = (2.2 +3L/1000 æm) and an on-screen repeatability of 3s = 0.2 æm is guaranteed for the short dimension and repeatability, involving stage movement, is 3s = 0.5æm for the long dimension.
Highly stable and reliable measurement is therefore assured.
Laser Auto-Focus, which provides high speed height measurement, is a key new feature.
It ensures stable and quick measurement of height during fast movements.
Using a technique described as TTL (Through the Lens) focus, even a small workpiece area can be brought into focus.
A visible light laser beam allows the measuring point to be easily checked.
An essential complementary component of the QVA is the associated QV Pak software.
The multi-function package contributes to the reliability of the QVA's image detection capability.
(This was Engineeringtalk's Top Story on 31 January 2002).
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