New Technologies for Workpiece Fixturing at METAV 2022: Advancements in Connected Manufacturing
Fixturing of workpieces during manufacturing processes is a crucial aspect of production. However, with the advent of Industry 4.0, manufacturers of fixturing devices are confronted with new challenges. These challenges include the integration of advanced sensor technology to enable seamless connectivity between fixturing systems and other manufacturing equipment within factory environments. The METAV 2022 exhibition, scheduled to take place from March 8 to 11 in Düsseldorf, will showcase the latest digital fixturing solutions that enhance factory efficiency and productivity.
Professor Berend Denkena from Leibniz Universität Hannover has been pioneering a specialized fixturing system that leverages computer and internet technologies. His research team has developed the first machine capable of interfacing with other production machinery in a collaborative factory environment. This system is particularly well-suited for applications requiring high levels of precision and safety, such as the manufacturing of critical components. Denkena advocates for the adoption of computer and internet-based technologies by the fixturing industry to enhance operational capabilities.
Andreas Maier GmbH & Co. KG (AMF) has been utilizing wireless technology in its fixturing systems since 2018. Manuel Nau, a sales representative for AMF products, states that the company aims to monitor system performance and automate certain processes. The use of wireless sensors and signal transmission allows machines to operate autonomously without continuous human supervision, particularly in applications involving frequent repositioning of equipment.
Enhanced Information Acquisition through Wireless Sensors
AMF's primary objective with wireless technology is not the replacement of existing wired systems but rather the acquisition of previously inaccessible data, such as the spatial location of workpieces and machine operations. Wireless signal transmission is particularly advantageous in environments where cabling is impractical, such as in rotary table applications.
The AMF system incorporates a gateway, transmitters, small switches, routers, and other components. Position data is transmitted via Bluetooth, ensuring minimal interference and energy consumption. The gateway serves as an intermediary, receiving signals and relaying them to a display or tablet. The range of signal transmission can be extended up to 10 meters, with the option to add antennas for greater coverage.
Diverse Applications of Wireless Signals
AMF offers a range of wireless sensors designed to monitor various aspects of fixturing operations, including robot positions, workpiece locations, clamp closure dynamics, and hydraulic pressure levels. Nau will present these advanced solutions at METAV 2022.
Schunk GmbH & Co. KG specializes in the production of robust fixturing devices. In 2018, the company introduced a smart hydraulic toolholder capable of monitoring the cutting process in real-time and adjusting operations accordingly. This toolholder collaborates with other systems to analyze chip debris generated during tool usage, detecting vibrations or tool instability to prevent chipping or breakage.
Advanced Milling Solutions
Schunk is currently developing an enhanced version of this toolholder, incorporating a closed-loop system to mitigate tool damage during cutting operations. The new model is equipped with sensors, batteries, and wireless transmitters that relay data to a factory receiver and subsequently to a computer for analysis. This system can operate at speeds of up to 30,000 cycles per minute, providing real-time monitoring and adjustments to optimize cutting processes.
Jochen Ehmer from Schunk highlights the toolholder's electronic intelligence, which contributes to improved factory efficiency and waste reduction. The system's rapid response capabilities ensure minimal tool wear and enhanced production quality.
Real-Time Process Monitoring and Control
At METAV 2022, attendees will have the opportunity to observe the functionality of the new toolholder and other innovative solutions not available at the time of the original publication. Schunk will present specialized versions of the toolholder that simultaneously monitor both the cutting process and machine performance. Additionally, the company will demonstrate a fully integrated system capable of real-time control of cutting operations.
VDMA Precision Tools is sponsoring METAV 2022 and will have a booth at the exhibition from March 8 to 11 in Düsseldorf, showcasing its latest innovations in precision tools and manufacturing technologies.
Further Information
METAV 2022 is scheduled to be held from March 8 to 11 in Düsseldorf, featuring a comprehensive display of advanced technologies for manufacturing processes. The exhibition will cover a wide range of topics including machine tools, measurement devices, software for metalworking, 3D printing, medical technology, molding, and quality control. The previous METAV exhibition in 2018 attracted 562 exhibitors and 27,000 visitors. However, the 2020 event was canceled due to the COVID-19 pandemic.
