PRODUCT SHOWCASE: Toyoda Unveils First-Ever Synchronous Control of Gear Machining with Skiving Technology


Toyoda’s new GS300H5 Gear Skiving Center is the first in the world to equip a skiving function to a general-purpose horizontal-type machining center, through which mass production of gear parts is achieved. CNC controls and a high-speed rotary table were developed specifically to achieve high-speed, multifunctional machining as a compact and lightweight product and simple in programming functions. As a recent finalist for Automotive News’ 2017 PACE Awards, the GS300H5 machine with robot loading ran gear skiving demonstrations on internal and external surfaces of a Torson gear workpiece.

In recent years, the energy-saving needs of vehicles have led to an increase in demand for gears to be compound and compact in accordance with hybrid vehicles and multistage automatic transmissions. Individual, conventional machining processes of lathe, hobbing, gear shaping, chamfering, and drilling machines are essential for the gear-making process; however, separately executed, they are less efficient. The single-chuck machining of the GS300H5 Gear Skiving Center integrates all gear part machining processes for a more functional and cost-efficient shop floor.

Toyoda’s GS300H5 Gear Skiving Center is packed with a high-speed rotation workpiece C-axis made more compact with a built-in motor while supporting automatic hydraulic fixtures. Featured alongside the machine is the newly developed TOYOPUC-GC70 control. The technology displays content of NC program by using NCSFC and simplifies inputting gear data, tool data, and cutting conditions shown on the screen.

Feed rates on Toyoda’s GS300H reach 60 m/min. with travels on the X, Y, and Z axes at 730 mm x 650 mm x 850 mm. The gear skiving machine can be complete with a 6,000 rpm, 50 taper spindle with motor rates of 30/25 kW. Rotating speed on the C-axis reach 3,000 min-1 at a torque of 160/90 Nm. You can view the new GHS300H HMC taking up just 2,745 mm x 4,510 mm of floor space at JTEKT Toyoda America’s headquarters in Arlington Heights, Illinois.