Gonzales - Estrabin
Case Study Gonzales - Estrabin

Inspection and auto-inspection with the ROMER Absolute Arm

Four buildings covering a total surface area of 20,000 m², four assembly halls each measuring 1,200 m² sitting on a site covering 35,000 m²... The Gonzales group, founded in 1971, has forged a solid reputation through its know-how, flexibility and reactivity as well as the quality of the services it provides. A designer and manufacturer of top-quality industrial equipment for major national and international customers, the company has successfully developed its know-how and reached the very summit of technicality in its specific fields of activity which include, among others, mechanised welding; the welding of steel, stainless steel and aluminium; precision mechanics; and large-scale machining. With a wide range of activities, Gonzales is present in all the sectors of industry, such as the tyre industry, the aerospace industry, the electric and hydroelectric sectors, the railway industry, etc.

The teams of engineers and technicians at Gonzales identify the different needs in discussion with their customers before working together to implement the resources necessary to design and realise their projects. Quality remains one of the key words governing the company in its desire to ensure that the contractor is fully satisfied. The production of parts offering high added value requires the highest possible level of precision throughout the manufacturing process. Within this framework, the company is constantly developing its pool of machines and inspection tools.

When their measuring arm, used in conjunction with CMM and measuring columns, became obsolete in terms of the precision offered, Gonzales implemented a restructuring of its three-dimensional inspection strategy. Jean-Marc Ancelle, General Manager of Gonzales, explains: “Our customers are becoming more demanding and our contracts have reached a higher technological level, requiring a greater level of precision. Our teams are constantly endeavouring to take the manufacturing process to the next level. We wanted to withdraw from the field of metrologists in order to involve and train the machinists by giving them the means to carry out auto-inspections”. Auto-inspection by operators within the workshop goes hand in hand with precision and quality, demonstrating a desire to provide an accomplished and optimised level of work throughout the manufacturing process.

To achieve this objective, the specifications required a simple software package which would be easy for “non-metrologists” to use and a measuring device which was not only precise and versatile but which would enable three-dimensional inspections to be carried out directly on the machine without needing to disassemble the part. The machine needed to be both portable and quick and easy to set up in order to optimise the inspection time.

During the benchmarking process, the different suppliers were asked to provide a measuring campaign and comparative tests using different...

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