TPT May 2007

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Technology Update
46 May/June 2007
J Neu GmbH, Germany, manufactures
drilling apparatus with X-axis length up to
6,000mm and above. Using the apparatus,
the tube is clamped and moved through the
drilling machine. This provides advantages
including protection of the surface of the
workpiece, machining directly at both
ends without difficulty, and the reduction
of required floor space, since machine
length is halved in comparison to pushing
operation machines.
The base of the drilling apparatus
is a stable welding construction
of hollow sections, providing
stiffness and low-vibration. After
welding, the bed is milled at the
assembly zone for the linear guide,
gear rack and material clamping,
which guarantees the necessary
tolerances.
The welded and milled slide that
carries the drilling unit is connected
to the machine bed by two linear
guides for movement in the
X-direction.
An additional pair of linear guides is mounted
on the slide to carry out Y-axis movements
of the drilling unit. By combination of the
two possible movements, the coordinates
for the drilling positions can be precisely
determined.
The drilling unit for the standard version is
an Alzmetall AB26 SV with electromagnetic
clutch. A microspraying device is supplied
as standard, and full CNC drilling units with
turret head are available on request.
J Neu GmbH – Germany
Fax: +49 6359 924 257
Email:
Website:
Advanced workpiece
drilling solutions
fi J Neu systems clamp the workpiece in place, while moving the
drilling machine
› The Alzmetall AB26 drilling unit
Applications requiring fast and accurate
drilling of holes in a workpiece are becoming
increasingly common. Conventional
manual or semi-automatic drilling machines
require drilling holes to be marked by
hand, which is both time consuming and
prone to error. Nevertheless, drilling by
hand is still common, since automatic
working is often uneconomical, due to high
investment costs for X-axis length of more
than 1,000mm.