For hexagon fasteners, the new SBM25 first uses a laser-based precision process to align the fastener’s flanks with the pilot hole in the workpiece. This avoids tilting during positioning. During the subsequent deformation process, the applied force as well as the insertion stroke are monitored. Control and communication are implemented with a system that uses modern bus technology to conduct monitoring and intervene in the process if necessary: Faulty fasteners are ejected automatically. One of the highlights is the automatic change of the drift pin. This significantly reduces manual maintenance and therefore the overall downtime of the system. Linked systems along with extensive process analysis and control ensure best possible process reliability even for large production runs. The SBM25 can be used in all working directions, including on parts that can be accessed only from one side. As standard, blind rivet nuts from M4 to M10 as well as blind rivet bolts from M5 to M8 can be used. The WEBER SBM25 insertion system for blind rivet nuts can be used on axis systems or as a robot spindle. The fasteners are fed reliably through a hose.
Maximum speed – short cycles times
With the new SBM25 insertion system, WEBER also redefines the speed of these systems: The fasteners are provided through a feed system that makes it possible to feed the next fastener already during the insertion process, significantly reducing the overall process duration. Robot ancillary times can also be used efficiently, e.g. for executing an automatic drift pin change. This results in constant cycle times and fewer interruptions in the production process. The fasteners are threaded and inserted with two separate EC drives. All process steps can be freely configured on the control panel and stored in individual insertion programs. The device uses the spindle thrust principle which ensures symmetrical deformation of the shank and is gentle on the surfaces.
More flexibility – in all applications
Based on customer requirements, the SBM25 was also enhanced in terms of flexibility: It can now handle a very large range of standard commercial blind rivet nuts and blind rivet bolts. The mechanical changeover of an insertion spindle and the feed system to a different fastener type can be completed in less than 15 minutes and requires only few components. There is no need for any controller or software updates. The option of exchanging the spindle in a fully automatic process using tool plates with docking capability offers the greatest possible flexibility where changes between different fastener types are required regularly. The insertion spindle can be mechanically, electrically, and pneumatically disconnected from the robot and set aside during active operation. When the spindle is picked up, all media are connected; the system is initialized automatically within just a few seconds. The modern WSP3 controller platform forms the basis for an optimized process and sequence control that also meets the latest requirements for IT and system security. The SBM25 now also makes it possible to produce reusable connections in position-independent processes. The innovative machine design enables positioning of a second spindle with an insertion distance of only 80 mm while providing optimum accessibility in corners and around interfering contours.
High durability – low maintenance effort
High durability – low maintenance effort One central requirement from the customer is a long service life and consequently low maintenance requirements for machines and systems. The WEBER engineers meet this criterion on the SBM25 with an optimized mechanical system to significantly extend the service life: The new insertion system now makes it possible to achieve more than 7 million cycles with the maximum force of 25 kN applied. The spring-loaded drift pin additionally ensures lower wear while being gentle on the female thread as part of the process optimization. “Nothing is so good that it could not be improved. With the next generation of the SBM25, we have taken exactly this approach and provided a consistently customer-oriented and solution-based response to the demands of the industry. Our experience from over 20 years of continuous development work has gone into this new insertion system. With the new SBM25, our customers receive a system that can monitor all processes continuously, is absolutely reliable, and sets new standards in terms of operating convenience, automation, and reliability. The SBM25 will continue its worldwide success”, says Ingo Untch, Product Manager responsible for insertion systems at WEBER. kontinuierlicher Entwicklungsarbeit geflossen. Unsere Auftraggeber bekommen mit der neuen SBM25 ein System, das alle Prozesse lückenlos überwachen kann, damit absolut prozesssicher ist und neue Maßstäbe in Bedienkomfort, Automatisierung und Zuverlässigkeit setzt. Die SBM25 wird ihren weltweiten Siegeszug fortsetzen“, so Ingo Untch, verantwortlicher Produktmanager für die Setztechnik bei WEBER.
