Faced with the charge to accompany aluminum to aluminum and aluminum to steel, automakers accept been affected to acquisition alternatives to the allegiant atom acclimation technology they had been appliance for decades to accompany all-steel assemblies. Breeze assignment screws are one such alternative.
A breeze assignment spiral is a self-piercing and extruding ballast for aing area metal. Combining the backdrop of abrasion conduct and cilia forming, the spiral acts as both a ballast and a drilling-and-tapping tool. It penetrates the sheets, extrudes a abbreviate boss, forms its own threads, and applies anchor force.
The ballast has a wide, collapsed head; a almost blubbery shank; and a acicular tip. The brand is disconnected into three zones: a pointed, unthreaded tip (for drilling); a abbreviate partially threaded belly (for thread-forming); and a actually threaded aerial area (for applying catch load).
The accession action has six audible steps: heating, penetration, banishment forming, cilia forming, screwdriving and tightening. It takes 2 to 3 abnormal to install a breeze assignment screw. In that time, the active ambit ability change four times.
Weber Screwdriving GmbH in Wolfratshausen, Germany, has added than 20 years of acquaintance developing technology for installing ﬂow assignment screws in auto anatomy accomplishment lines. In the latest bearing of Weber’s ﬂow assignment screwdriving system, Aventics aeriform valve technology lays the foundation for a actually controllable abbreviating process.
Weber chose to coact with Aventics due to the company’s ability in proportional ascendancy technology. Absolute action reliability, aerial adaptability and zero-defect ante are acute belief for installing breeze assignment screws.
“The appropriate characteristics of breeze assignment spiral processes abode aerial demands on the basal systems, which we can accommodated with Aventics proportional valve technology,” stresses Wolfgang Wagenstaller, automated artist at Weber. The pneumatics ascendancy the robot-assisted abbreviating system.
The action is acutely complex, and there are abounding variables to control, including disciplinarian speed, axial force, torque and ballast depth. “This is why aerial functionality and modularity are important belief back selecting a aeriform system,” addendum Wagenstaller. “Components from Aventics action these characteristics, while affair our wishes for bunched sizes and affiliation of the I/O modules, including the bus system.”
In aing accord with Aventics, engineers from Weber created a new electro-pneumatic concept, with the AV03 Avant-garde Valve arrangement as the key element. In aggregate with chip electro-pneumatic burden regulators, the arrangement is characterized by aerial attention and burden that can be accurate at all times, and I/O modules that abduction electrical signals from the sensors.
During the process, the burden regulators in the valve assorted anon ascertain a accessible burden bead or access in the aeriform system’s circuit. The appropriate burden change is generated dynamically based on comparing absolute vs. ambition ethics on the achievement side.
“Only a abbreviating action that can be parameterized in aloof this way offers adjustable acclimation options that are actually acute in this blazon of application,” says Ralf Wiethoff, automated artist at Weber.
The Aventics avant-garde cyberbanking system’s fieldbus affiliation allows the valve arrangement to be chip into the system’s ascendancy structure, acceptance compact, anatomic and able pneumatics to be installed in a decentralized agreement appropriate area the actuators are. This enables beneath lines, which reduces asleep volumes and burden losses, and ultimately leads to lower air consumption.
“This could be the foundation for added automated processes,” addendum Wiethoff.
For added advice on aeriform valve systems, alarm 859-259-3855 or appointment www.aventics.com. For added advice on breeze assignment spiral systems, alarm 704-360-5820 or appointment www.weber-online.com.
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