Zwick builds the most flexible robotic testing systems

Tag : Flexible Wires
The 'roboTest F' robotic testing system is designed for flexiblespecimens, such as films, textiles and fleece materials, but evenmetals and wires can be tested using the corresponding grips andtooling.
The main benefit of this sophisticated testing system is its easeof use. It allows testing to be carried out overnight and atweekends thereby reducing the need for shift working and savingcosts for many organisations. In addition it is possible to carryout testing using unsupervised or relatively unskilled operators.The variance which often occurs with traditional testing systems iseliminated resulting in much better accuracy and reproducibilityover time.
The sequence starts by entering specimen data into a database,either locally or in an external database or host computer. Theoperator simply loads the specimen into a special magazine. Oncetested the specimens are either blown out of the grips usingcompressed air or are mechanically removed by the robot system. Themagazine is adjustable over a range from 100 to 300mm toaccommodate different specimen lengths and shapes.
How is it possible for robotic testing systems to achieve moreaccurate and consistent results? Zwicks Product Manager AutomationRobert Kaifler explains, The positioning accuracy of roboticsystems means that they are able to handle and place the specimeninto the testing machine in perfect alignment every time. Withdifferent operators and shifts this is not always possible, and inaddition extensometry used to measure strain during the test can beapplied and removed automatically without any human contact. Thecomplete test sequence is controlled by software and results can beautomatically logged into databases or spreadsheets avoiding typingerrors. With the whole process being very easy to administer itensures that the testing system follows precisely the sameprocedure every time.
Robotic testing systems simplify the processes required for qualitymanagement systems such as ISO 9001 because the testing sequence ispre-programmed, and not subject to human error. Results and longterm statistics are also available in real-time helping to minimisecommunication inefficiencies between different productionprocesses.
Zwick has used a modular design concept which allows testingsequences to be changed or adapted to customer specificrequirements. These systems can even be retro-fitted to existingZwick testers. By using Zwicks testXpert