Gantry / Column & Booms
Welding gantries and column&boom systems find their use in welding of large parts, such as steel constructions, crane girders, side-sills of road and rail vehicles and large tanks. The choice of the most suitable machine construction, size and equipment depends not only on the dimensions of seamed parts but also on the layout of workstations, manipulation space etc. and it is always necessary to carry out a detailed technical assessment to choose the best solution.
Column & Boom BKM
are most often used for welding of rotary vessels (combined with roller
positioners RB), when combined with travel they are also suitable for
longitudinal welding of large steel constructions.
column is fixed to the workshop floor or the access platform for travel along a
rail track. The motor and chain driven vertical movement of the arm is equipped
with safety mechanism.
arm (programmable linear axis) with a universal flange at the front for fixing
of auxiliary carriage with a welding head
- a rail track
- a motor-driven carriage for torch setting
- a pendulum unit
- seam-tracking sensors
(height x length of the arm) min 1x1, max. 5x4 m
equipment with AC-servo motor with feedback for longitudinal travel with
possible extension by other actuated or non-actuated supports for the movement
of welding torches:
- with AC-servo motors for synchronous
movement of the torch along more axes according to the program or sensor
- with a pneumatic cylinder or a spring for easy
positioning, or for mechanic lining of seam position
One-sided welding gantry BSV
are set along the travel track from one (boom is fixed on the upper column
flange) or both sides (column is fitted with a bearing for manual rotation of
boom with pneumatic arrest in 2-3 positions).
supporting column and the travel track are robust steel welded constructions,
the boom and the beam of vertical travel are made of steel or aluminium
profiles. For linear travel, ball runs and geared racks are used. Optionally,
we offer a rotary head for program-controlled or manual torch rotation along
the vertical axis.
Welding gantry BPP
is mainly used for welding of large steel structures, where the frame with two
supporting sides ensures better system rigidity even when more welding torches
are used. Welded workpieces are set into jigs located between travel rails of
the manipulator. One rail is fitted with a geared rack, the other serves as a
supporting track for the second side.
supports (usually 2 or 4 pcs) are hung to the top beam of the frame or to both
sides (horizontally) depending on the specific construction.