ELBO CONTROLLI SETHY SIX, Инструкция по установке, эксплуатации и обслуживанию, Страница: 43 / 96

9 212V VISION SYSTEM ELBO CONTROLLI srl
SETHY SIX
9 212V VISION SYSTEM
9.1 Introduction
The working principle of 212V is similar to the one of the profile optical projector: a collimated light
source throws a profile tool between the two elements on a 1,3 mega pixel C-MOS image sensor through
a suitable lens.
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The tool profile captured by the image sensor is displayed in real-time on the machine screen; the viewing
area is about 6,4 x 6,4mm.
To facilitate the measuring, it is possible to choose the digital representation with maximum contrast as an
alternative to analogical measuring.
Furthermore, it is equipped with two bars for the focusing control of the image, one takes the focus of the
X axis movement and the other of the Z axis, helping the operator to locate easily the point of maximum
tangency of the tool.
As with projectors, it is possible to measure angles by directly comparing the tool and the grid profiles on
the screen.
The real advantage is the elimination of the subjectivity typical of optical systems, which makes our
measurements objective and repetitive.
In fact, the 212V can analyse the cutting edge and find its measurement points on the profile with a 1
µ
m
resolution.
The operator can choose to measure on the fixed grid with the digital comparators shown on the screen or
to measure automatically on screen, obtaining measurements in real time from the sum of the coordinates
of the central grid and the relative position of the image.
In both cases, measurements are constantly displayed on the screen, providing all the necessary
information in the same area.
In addition, the 212V vision system can calculate geometrical bodies automatically on the tool profile
9.2 Focusing of image
With 212V, measurements are taken in the same way as the ones taken with an optical profile projector; it
is therefore necessary to frame the tool’s profile on screen, bringing it inside the light beam through rapid
manual movements.
Before measuring, rotate the spindle to search for the point with best image focusing.
The display always shows two control bars for the focusing of the image (one for each axis); collimation
indicators appear if the grid is near to help you to obtain the perfect tangency with the grid; just rotate the
cutting edge until the highest possible value on the axis to obtain the best focus.
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