Catalogue Force and Torque Sensors for Monitoring Manufacturing
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Monitoring Assembly Processes
Assembly and product testing processes are determined by the strategic applicati­on of force and torque. Assembly forces applied during press-fit, joining or thread­ed connection processes are measured and monitored during the active process. Product operating or actuation forces are determined during follow-on processes as part of product testing. Both tasks can only be carried out on the basis of a reli­able force and torque measurement.
The error-free production of flawless parts is the main objective of manufacturing. Therefore, quality assurance and monito­ring requirements are becoming increasing­ly exacting. For reasons of economic ef­ficiency, quality assurance processes are often integrated directly into the produc­tion workflow, as this approach ensures that process or quality deviations can be remedied as quickly as possible. Post-pro­duction testing of press-fit connections is hardly possible without damage to the fi­nished product. This is another reason why quality testing must be integrated into the production process. More often than not, assembly is a cyclical and therefore dyna­mic process. Thus, force measurement has been tried, tested and approved as an ide­al method for monitoring such processes.
^^Benefits of Force Measurement
+ Crucial parameter for the assembly process
+ Easy and cost-efficient integration into the production process
+ Fast and easy segregation of good and bad parts
+ Easy documenting of process data
+ Easy testing of product properties
Force measurement is also a useful way of protecting workpieces from overload. The introduction of force limits, for exam­ple, can be useful for defining the maxi­mum press-fit force. Press-fit forces can be measured directly in-flow or indirectly as a function of strain on the machine structure.
Force Monitoring during Press-Fit Processes
For reliable processes and for quality test­ing, the forces generated during the pro­duction workflow (e.g. joining, press-fit or positioning forces) must be documen­ted and evaluated. The evaluation of the force-displacement curve is an ideal ap­proach to the assessment of press-fit pro­cesses. This involves the evaluation of de­pendent variables such as press-fit force and displacement distance and their func­tional relationship. The result of this evalu­ation can be used for segregating flawed parts for post-production processing or for sorting them according to tolerance classes.
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