FUHR GmbH and Co. KG Profile Wire Measurement in Course With a Statistics Module, Data Export, and Frequency Analysis

 

FUHR GmbH and Co. KG Profile Wire Measurement in Course With a Statistics Module, Data Export, and Frequency Analysis

Until these days, measuring systems used to decide the floor satisfaction of products inline in the course of the process had been nearly completely deployed for process manipulate. Process variables were measured, compared with goal values, and the settings of the manufacturing plant have been optimized with the deviations decided. But in instances of BIG DATA and Industry four. Zero, this is frequently not enough. The satisfaction of production strategies should now not only be regulated but analyzed and documented.

As a manufacturer f rolling mills, FUHR is constantly being challenged through growing needs on the finished cord’s geometric precision. Accuracies class 6, according to ISO 386, are almost trendy. This implies a permissible deviation of +1- 0.0030 mm for small profile wires with a nominal diameter of up to three mm. If a method functionality (Cp or Cpk) is likewise required, a selection of simplest +1- zero.0015 mm stays in production.

In order to make certain that these requirements are met in each day's manufacturing, the twine must be constantly measured at the same time as exiting the rolling mill, and the roll positions have to be adjusted fully automatically. Multi-stage rolling processes, it is necessary to measure and calibrate right after the pre-rolling tiers. Therefore, modern high-velocity rolling mills made with the aid of FUHR are ready with several measuring systems.

Conventional laser shadow measurement systems, as commonly used in drawing spherical wires, have not been confirmed to be successful in profiling traces. On the only hand, even a moderate tilting of the twine modifications the dimensions of the shadow. On the other hand, laser structures cannot be used completely in the moist area of the pre-rolling levels.

FUHR, therefore, is predicated on tactile measuring structures, wherein the cord is scanned with diamond-studded, excessive-resolution displacement measuring structures.

Alternatively, as opposed to diamond styli, stylus rollers particularly tailored to the twine geometry are available.

These measuring structures had been developed and constructed through FUHR for several years. They are characterized through precision, robustness, and an in particular exact value-for cash. As a result, it's miles now possible and commonplace practice to integrate extra than just any such systems right into a rolling mill.

FUHR makes use of those systems in new machines; however also substances them for existing and 0.33-birthday celebration flora. In particular, retrofitting measuring devices which are now not supported by means of the producer gives an economic delivered value: on the only hand, jogging current measuring generation does not have to be replaced by means of new technology, and on the other hand, systems of various origins may be monitored with one visible output module.

In order so that you can fulfill the patron necessities for data analysis and exceptional documentation stated at the beginning of this article, FUHR has now delivered its records acquisition and evaluation machine F-MAS to marketplace adulthood. It is available as a further choice to the tactile measuring systems however can also be retrofitted to existing digital or analog measuring structures. During its improvement, unique interest was paid to compatibility with 1/3-birthday party systems – mainly close to integration into existing systems.

With F-MAS, two-wire dimensions (e.G. Width and thickness of a square profile) are measured with a measuring frequency of one thousand Hz. This actual statistics is displayed in diagrams, statistical values are calculated, and frequency distributions are displayed. Reports are generated, and raw facts are exported. Integration into patron networks is an issue, of course. Data export to conventional statistics analysis software is possible thru an OPC-UA interface.

Also incorporated is an FFT evaluation, which detects cyclical dimensional fluctuations. Thus, for instance, the concentricity error of a curler or the defect of a bearing or gearbox is reliably unmasked because of the motive of an excellent problem based on the frequency of incidence of the mistake.

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