TPT January 2011

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Straightening & Finishing
ORT Italia specialises in the design and
manufacture of spline and thread rolling
machines for cold, hot and semi-hot
applications. The company dedicates a
considerable part of its revenue to research
and development, and its metrology lab
and testing rooms, recently refurbished,
allow performance trials and testing of new
installations. The company exports over
70% of its production, and has installed over
4,000 machines worldwide.
The company’s straightening
machine has been designed with special
characteristics that include high stability of
Straightening machine developed
structures, practical control panel, electrical
movement of the mobile heads, electronic
rotary motion transmission to the spindles,
and greater precision and speed in the
roller phasing operation. Linear guide ways
with pads also improve precision in slide
advancement.
Standard features include Siemens or
Fanuc CNC, electric axes, 30-ton capability,
spindle movement by brushless motor, high
precision on positioning slide (0.001mm),
velocity of positioning increase of 200%,
and structural rigidity increase of 60%.
Options include angular visualisation of
head, loader and un-loader
to individual design, electric
programmable back stop, tele-
service by web, automatic tilting
heads, and strain control.
The machine is free from
variations of temperature due
to the use of electromechanical
axis instead of hydraulic, and
also controls the torque on each
motor. The strokes are controlled
by Siemens inverter, and
slide positioning is individually
controlled by a linear encoder with a
0.001mm resolution. The head inclination
is monitored in the CNC with a resolution
of 0.02°.
The machine is equipped with a minimum
of three rolls, up to a maximum of nine,
depending on the length of the piece. The
straightening of sinterised camshafts is a
typical application.
ORT Italia SpA – Italy
Fax: +39 0374 370338
Email:
Website:
ORT Italia’s new straightening machine
The machine is equipped with between three and nine rolls