Gearbox primary and secondary shafts generally require 2 or 3 straightening points with checking of gear pitch diameter by means of a Master Gear, with high mechanical and metrological accuracy. Alternatively, contactless Laser Gear Optical System is available also for measuring helical splines and splines. This laser system, replacing any multiple Master Gear system, leaves machine table more free for easy automatic set up without operator intervention for changeover.
Machine size depends on the section and length of the parts.
Primary and secondary gearbox shafts can be:
For a better process efficiency and increase of hourly production, the machine can be equipped with tooling automatic set-up units for different kinds of parts. The automatic crack detection device identifies micro cracks occurring during the process and is recommended for this application.
The straightening machine can be equipped with the radial holes detection system to avoid stresses when pressing in the most fragile points of the workpiece (VESS: Vectorial Straightening System Galdabini patented). So often, the heat treatment process makes gearbox shafts with lots of dirt in the center holes; to this purpose the automatic center cleaning unit is available by means of mechanical tool and/or by air blowing.