Shape gauges

The VLS series gauges are designed to control the straightness of long products directly on the production line.

The principle of operation is based on the synchronized detection of the material position on three equally spaced points (reading spacing) and on the comparison between the central point with the straight line joining the two side points. The measures are carried out without contact by three laser line triangulation sensors, each of them detects the material position along the two axis (X e Z) perpendicular to the running direction (Y) in order to measure the straightness on both axis. It is possible the single axis measurement, also with light barrier sensors.

The straightness, in terms of mm/meter, is calculated and displayed in real time through the operator panel that provides the immediate signal of out of tolerance and sent as a automatic control report to the network via Ethernet

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The VLF series gauges are designed to control the deviation of a surface from an ideally flat reference plane. In particular, it is possible to perform analysis of crossbows, edges undulations, macrodefects, longitudinal undulations, etc…

The working principle is based on laser triangulation: a thin laser line is projected on the material in the area of interest which defines the section to be inspected. By means of the optical system positioned at a certain angle, the image of the lighted section is projected on a bidimensional optoelectronic transducer which provides the X/Z coordinates of the inspected points, both along the scanning direction (X) and along the material/head distance (Z). When material is running along Y direction, the continuous 3D inspection of the surface is obtained.

The gauges are equipped with the operator panel PPC which provides the immediate visualization of the section profile, the measure of the maximum deviation on three-color display (green in tolerance, yellow for pre-alarm and red for out of tolerance) and the profiles color map. The control report is automatic generated and sent to the network via Ethernet.

 

Two different models of flatness gauges are available: single head standard model with measuring range up to 700 mm; double head model with measuring range up to 1300 mm. Special models on request.

MLP gauges are designed to measure directly on the production line the main dimensions of continuous materials, such as bars, tubes, extruded profiles, shaped profiles, etc… Their working principle is based on laser line triangulation applied 360° around the material in order to keep under constant control the significant dimensions of the material section.

A thin laser line is projected on the material in the area of interest which defines the section to be inspected. By means of the optical system positioned at a certain angle, the image of the lighted section is projected on one or more optoelectronic transducers which provides the X/Z coordinates of the section itself. These coordinates are then used to calculate the dimensions of interest.  By means of the material movement on Y direction, the dimensions are kept under control along full material length. The system is completely synchronized and calibrated: therefore, to execute the measurements, it is sufficient the material is moving within the gauge measuring range.