Product category:
Boards and Backplanes
News Release from: Tru Corporation | Subject: Trumpf Qualifier
Edited by the Electronicstalk Editorial
Team on 17 October 2001
Measuring profiled sheet components more
quickly
The new measuring machine, Trumpf Qualifier enables punched, laser-cut or punch-machine-formed sheet metal parts to be measured quickly and very precisely.
The new measuring machine Trumpf Qualifier enables punched, laser-cut or punch-machine-formed sheet metal parts to be measured quickly and very precisely Reverse engineering - detection of the actual contour of a part and then converting it into a CAD file - gives the sheet metal fabricator additional flexibility
The machine comes in two sizes, with measuring ranges of 1250 x 1250mm and 2500 x 1250mm.
The height measurement range on both is the same, at 40mm.
The Trumpf Qualifier measuring machine rounds off the sheet metal processing chain perfectly.
The basis for the indispensable stability and precision of the Trumpf Qualifier is a massive granite block, which functions as the machine frame.
It supports the table with glass top on which the workpieces are placed for measuring.
It serves as the X axis, and the parallel longitudinal guides of two coupled extension arms lying above one another are suspended from it as a double Y axis.
The upper extension arm carries the mobile unit with the CCD camera for scanning and detecting 2D contours, and also a laser diode for triangulation, enabling height measurement of beads or rimmed holes.
The lower extension arm carries the illumination unit, with its light source and condenser lens for the required parallel light.
The CCD camera on top and the illumination below "fly" along together in perfect synchronicity.
While the camera glides contactlessly across the sheet metal workpiece it takes 50 "silhouette" photographs of it each second.
The respective camera position is simultaneously established by two axes.
This precisely positioned snapshot provides the measuring software with the information it needs to automatically piece together the actual image and compare it with the projected (CAD) one.
Depending on the task, the measuring process takes from a few seconds to a few minutes.
Measurement takes place at a speed of more than 20 million pixels per second.
The result is shown on the monitor: and any deviations in tolerance are displayed in red.
A measuring report can be printed out and also used as documentation for quality assurance purposes.
With laser triangulation via offset laser diode and CCD camera in the upper unit for measuring the heights of formed components up to 40 mm, measuring uncertainty is 0.1 mm.
During the course of these spot measurements, the laser beam hits the surface of the sheet metal component at an angle.
This means that contact points located higher up appear offset to the camera, which is directed vertically downward - and this offset enables the measuring software to precisely calculate the height of the component.
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