NLH5050 Column and Boom Welding Manipulator for SAW Welding
Automatic Seam Welding Machine Heavy Duty
The NLH5050 welding manipulators consist of column, cross-beam,
elevating unit, staircase, trolley, electric control system, and so
on.
The column is rectangle girder and double rectangle orbit style. On
the top of the column is the elevating system of cross-beam. It is
driven by the motor which takes the worm wheel and chain sprocket
wheel. At one side of the chain is the oriented structure and the
other side is balance iron inside the column which keep balance of
the cross-beam. The bottom of the column is connected with the
trolley by the swing bearing.
The travel of cross-beam is driven by the AC motor and worm reducer
which drive the gear and rack couple. The welding speed can be
adjusted in a certain range. To facilitate the operation, a control
box connected on the control box, the remote box is equipped with
operating arm speed potentiometer, arm movements switch, telescopic
arm switching. The telescopic of cross-beam using the frequency
conversion control, which with high precision and nicety
orientation. There is an operator chair equipped at the front of
the boom, which will be easy to control the manipulator.
The oriented structure is the part to connect the column and the
cross-beam. There are eight sets of oriented wheel fit on the
oriented structure. Every set of oriented wheel consists of three
rolls with eccentricity adjust structure. It is easy to adjust the
space between oriented structure.
There is ratchet wheel on the oriented base. When possible, as
larger external impact accidents to the chain (10 times of design
of the safety factor), ratcheting spine of the body will guide
blocks and arm locking them in columns, preventing arm falling and
causing accidents.
There is a trolley at the bottom of the column. The traveling
structure, the swing bearing and lock device are fitting on the
trolley. The travel of trolley is driven by the cycloid gear
reducer which drives the gear couple. The turning of the column is
driving by motor and gearbox. The column fixed on the swing
bearing. The swing bearing is single-roll ball bearing slewing
ring. It features compact in design, and light in weight. The lock
devices on the rotation structure, which ensure it, not wobble
while welding. The lock structure is manual. There is a grapnel
between the trolley and rail which ensure the safe.
Furthermore, there is a staircase as subsidiary installations,
which makes easy for the user overhaul and maintain.
Electrical Control Instruction
The electric control system consists of the electric control box
and remote control box
The electric control box consists of the inverter, contactor
button, etc. The mainly electric organ are using the famous brands,
such as Siemens, ABB and so on, which are which are reliable
performance and easy maintenance. It controls brake of the motor
and meet the requirements of the mechanical action. And it can
control and protect the motor. The frequency conversion system uses
the YASKAWA system, which is low-noise, high-performance,
multi-function transducer, no torque ripple. And other
characteristics of the control signals using analog control, speed
shows is using high-precision digital display meter, the overall
stability of high anti-jamming capability.
There is remote box in the control system, which is easy to control
and will be safe.
Usage of Welding Manipulator
This kind of manipulator could be equipped with SAW welding system,
flux recovery&feeding system, welding seam tracking system and
TV monitoring system, ect. They also can worked with welding
rotators or welding positioners as a welding station.
Main Technical Parameter of Heavy Duty Type Manipulator
| 1 | Model | NLH |
| 2 | Guide rail width, mm | 60 |
| 3 | Lifting stroke (A), m | 5 |
| 4 | Retractable stroke (B), m | 5 |
| 5 | Lifting speed, mm/min | 800 |
| 6 | Retractable speed, mm/min | 100-1500 |
| 7 | Min height under boom(C), mm | 400 |
| 8 | Min distance from column center to front end of the boom (E), mm | 1200 |
| 9 | Column revolving | Angle(º) | ±180 |
| Speed(rpm) | 0.11 |
| 10 | Trolley speed, mm/min | 2000 |
| 11 | Trolley height (D), mm | 380 |
| 12 | Inner side distance of rail (F), mm | 2000 |
