Product category:
CNC punching and profiling
News Release from: Trumpf | Subject: Trumpf Qualifier measuring machine
Edited by the Manufacturingtalk Editorial
Team on 11 February 2002
Flat bed machine measures sheet form
heights too
This measuring machine enables punched, laser-cut or punch-machine formed sheet metal parts to be measured quickly and precisely.
The new measuring machine Trumpf Qualifier enables punched, laser-cut or punch-machine formed sheet metal parts to be measured quickly and 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
This article was originally published on Manufacturingtalk on 21 Jun 2001 at 8.00am (UK)
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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 measuring machine completes the sheet metal processing chain perfectly.
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The basis for the stability and precision of the Trumpf Qualifier is a massive granite block, which functions as the machine frame.
It supports the table with a 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 movement of the CCD camera on top of the illumination below, is synchronised.
As the camera scans the sheet metal workpiece it takes 50 "silhouette" photographs every 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 piece together automatically the actual image and compare it with the projected (CAD) one.
Depending on the task, the measuring process takes a few seconds to a few minutes.
Measurement speed is 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.
Laser triangulation via offset laser diode and CCD camera in the upper unit for measuring the heights of formed components up to 40mm.
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.
This offset enables the measuring software to precisely calculate the height of the component.
(Users might consider this feature for measuring burr heights to control tool wear - Ed). Request a free brochure from Trumpf ...
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