Particular Challenge: For the assessment of rotating parts, numerous parameters have to be taken into consideration: Concentricity, radial run-out and axial run-out (i.e. wobble); furthermore thickness, diameter, planarity and the absence of surface defects had to be examined. The solution developed by QuellTech consists in a configuration of three Q6 Laser Laser Scanners.Each of the lateral surfaces is assigned to its own scanner. In order to enable the thickness precisely to be determined, both laser lines are mutually oriented in opposite direction. The third scanner inspects the outer circumference of the wheel, this way measuring diameter and radial run-out. All of these scanners are subject to encoder signals supplied by the rotary axis and synchronously triggered, so possible defects on the wheel can precisely be localized. The measurement takes place at a resolution of ca. 30 µm, and a cloud comprising several millions of points are obtained.
Germany
The QS View software package is intended for dimensional control in 2D or 3D QS-View 2D / 3D software for all measuring tasks 3D representation of an irregular body for determination of volume and weight. With the 2D / 3D software a wide variety of parameters can be processed and displayed, e.g. length, width, angle height, gap, presence, volume (resp. weight), seam geometry (height, width), gap dimensions. Due to the modular structure of the software, customized specialties can be added any time. Each module delivers the results to an individual output module. The universal SPC interface allows simple connection to S7 controllers via Ethernet. 2D / 3D software developer kits are available for integrators with corresponding knowhow.
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Many materials cannot be measured tactilely, therefore non-contact thickness measurements become necessary. Especially e.g. with glowing materials, or wet processes, a continuous tactile measurement is nearly impossible. Furthermore, web speeds in plant engineering and production have increased, requiring a corresponding fast sampling rate of the measuring systems. In addition, high measuring widths are often required. Why is contact free measurement technology so perfect for this application? Can be used in any web width, Scalable measurement thicknesses from a few millimetres to several meters, Thickness and coating thickness can be measured for different materials, Vibrations of the web materials, can be compensated, Turnkey solution for mechanical engineering, Non-contact and non-destructive measurement method, Large distances to the measured object are possible, Measurement of free forms,
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Four QuellTech Q6 3D- laser scanners are installed, mutually displaced by an angle of 90°. In this configuration, they are able to monitor the complete surface of the cable running through. It is important that the test does not lower the production speed, therefore very high sampling rates are required, supported by convenient data processing. The measured position of a defect is recorded in cable direction.
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Particular Challenges of the Application: By tactile equipment, determination of the deepest point on a rough metal surface is neither simple or precise. As a consequence, often either too much material is removed, or the surface is still covered with defects which have to be eliminated by a following milling cycle. The equipment is arranged in parallel, so that the complete width of the slabs is covered. The sensors are calibrated to a common coordinate system and mounted on a movable gantry. Before measurement, the slabs are fixed in place. The scanners mounted on the gantry are guided over the measuring object, driven by an electric motor. The point cloud recorded by the four scanners is consolidated in a PC by means of the QuellTech image processing software which calculates the difference between highest and lowest point of the corresponding surface and compensates for possible inclination of the slab (detrending).
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