ChamferCut IG: Nothing is impossible
On the new LK 280 DC gear skiving machine from Liebherr-Verzahntechnik GmbH, internal gears can not only be produced efficiently, but also chamfered during the machining process thanks to an integrated ChamferCut device. This opens new opportunities for the industry to manufacture gearboxes with higher power density, giving them a competitive edge in the market for modernized or alternative drive technologies.
New drive designs require gearboxes with greater power densities, and not just for the electromobility sector. Planetary gears are therefore being used more and more frequently, which deliver a higher transmission ratio at a smaller volume. However, the possibilities for chamfering the internal gears required for this have been limited up to now. “There was a desire in the industry for economical and high-quality chamfering solutions for internal gears. But up until now these seemed almost impossible to put into practical use,” says Dr. Oliver Winkel, Head of Application Technology at Liebherr-Verzahntechnik GmbH, describing the situation at the get-go. Now the company has become the first to present a machine which does exactly that: by making use of an exciting new cutting method to make a defined, exact chamfer on an internal gear – and to do just that during the machining process and with high precision to boot. In this way, previously formed burrs are removed and, at the same time, the leading edges are broken, which creates the best conditions for assembly, application behavior or any subsequent hard gear finishing.
Modular machine design with pick-up spindle
This is made possible by Liebherr’s modular machine design, which allows the ChamferCut device to be integrated into the machine. The chamfering device is at a right angle to the main machining and is fed by a ringloader. For the particular requirements of chamfering internal gears, Liebherr has developed a new type of pick-up spindle that lifts the workpiece and thus makes the burred underside of the internal gears accessible for the ChamferCut tool. “That’s where our strength lies; in developing innovative solutions and new machine designs for new component requirements. The know-how was there, and the first customer inquiry got the ball rolling. We were offered the opportunity to make a machine just for this purpose,” explains Winkel. The gear skiving machine with integrated chamfering device is already in use at a well-known gear manufacturer.
... read more here!
On the new LK 280 DC gear skiving machine from Liebherr-Verzahntechnik GmbH, internal gears can not only be produced efficiently, but also chamfered during the machining process thanks to an integrated ChamferCut device. This opens new opportunities for the industry to manufacture gearboxes with higher power density, giving them a competitive edge in the market for modernized or alternative drive technologies.
New drive designs require gearboxes with greater power densities, and not just for the electromobility sector. Planetary gears are therefore being used more and more frequently, which deliver a higher transmission ratio at a smaller volume. However, the possibilities for chamfering the internal gears required for this have been limited up to now. “There was a desire in the industry for economical and high-quality chamfering solutions for internal gears. But up until now these seemed almost impossible to put into practical use,” says Dr. Oliver Winkel, Head of Application Technology at Liebherr-Verzahntechnik GmbH, describing the situation at the get-go. Now the company has become the first to present a machine which does exactly that: by making use of an exciting new cutting method to make a defined, exact chamfer on an internal gear – and to do just that during the machining process and with high precision to boot. In this way, previously formed burrs are removed and, at the same time, the leading edges are broken, which creates the best conditions for assembly, application behavior or any subsequent hard gear finishing.
Modular machine design with pick-up spindle
This is made possible by Liebherr’s modular machine design, which allows the ChamferCut device to be integrated into the machine. The chamfering device is at a right angle to the main machining and is fed by a ringloader. For the particular requirements of chamfering internal gears, Liebherr has developed a new type of pick-up spindle that lifts the workpiece and thus makes the burred underside of the internal gears accessible for the ChamferCut tool. “That’s where our strength lies; in developing innovative solutions and new machine designs for new component requirements. The know-how was there, and the first customer inquiry got the ball rolling. We were offered the opportunity to make a machine just for this purpose,” explains Winkel. The gear skiving machine with integrated chamfering device is already in use at a well-known gear manufacturer.
... read more here!