A. Usage and Application of Automatic Column and Boom Welding Equipment:
1. Function of the Column and Boom Welding Manipulator:
This equipment is for fabricating different diameters of industrial level cylindrical working parts: Pipes/ Tanks/ Pressure Vessels, and other Structure Members, etc.;
2. Process Technology Implemented in Welding Column and Boom:
1) Mainly used for welding;
2) Besides, installed with function heads, other steps can also be performed: Assembly/ Painting/ Testing / Grinding/ Cutting/ Painting/ Flaw detecting ..., etc.;
3. Welding Seam Formed with Column and Boom Automatic Welding Equipment:
1) Internal and external circumferential /longitudinal welding; spiral welding; Hard surfacing on cylindrical workpieces;
2) Spatial linear welding, such as transverse weld, oblique weld on structure members;
4. Applicative Industry of Column and Boom Welding Manipulator:
LHZ series Welding Manipulator is applied in all Industries involve cylindrical workpieces: Pipe and Pipeline/ Tank/ Boiler/ Pressure Vessel/ Tube/ Pharmaceutical/ Petro-Chemical/ Oil Tank/ Offshore Wind Tower/ Boiler, etc.
5. Welding Center:
1) In practical application, Column and Boom Welding Equipment seldom operates on its own;
2) Instead, it usually works with Other Welding Equipment: Welding Rotator and or Welding Positioner, to be composed into different configurations Welding Center, fulfilling complicated tailor made welding tasks for customers.
B. Main Specification of Column and Boom Automatic Welding Equipment:
1. Workpiece Size for Welding Manipulator:
1) The smallest is LHZ 2x2, for 2000mm horizontal and vertical moving stroke of horizontal boom;
2) The largest is LHZ 8x8;
2. Loading Capacity of Welding Column and Boom:
Horizontal boom end loading capacity ranges from 80kg to 500kg;
3. Welding Mode adopted in Column and Boom Automatic Welding Equipment:
All the industrial level commons seen welding mode: SAW (Submerged arc welding)/ CO2 GMAW / TIG/ MIG/ Strip Cladding (Built Up welding) can be performed: (Fig.1)
C. Classification of Column and Boom Welding Manipulator:
LHZ series Welding Column and Boom can be classified with below aspects of:
1. Stationary or Moving Welding Manipulator;
2. Column revolving or non-revolving;
3. For Column revolving, manual or motorized drive revolving.
D. Function Views on Automatic Column and Boom Welding Equipment:
1. Safety Assurance on Welding Manipulator:
The most important is: Caution against sudden falling of horizontal boom when it stays at high position level. For this purpose:
1) Boom elevation driving motor is braking type: (Fig.2)
2) There is a row of safety holes arranged in vertical line in the upright column, which will be plugged with safety pins in case of contingency happens, preventing the boom from falling. (Fig.3)
2. Column Revolve in Welding Column and Boom:
1) Either manual or motor drive;
2) For motorized revolve, the driving motor is braking type, so that the revolving column can be stopped at any angular position reliably;
3) In Welding Manipulator, transmission chain for column revolve is: Braking motor –- Gear –- Slewing support unit – Column, with limit switches for hard security;
4) The slew supporting unit for column revolve: (Fig.4)
3. Saddle (Cross Slides) in Automatic Column and Boom Welding Equipment:
1) This unit is the pivot for working of entire set Welding Column and Boom, for guiding boom sliding in both directions;
2) The ingenious design and precisely assembled Cross Slides in In Wuxi JACK Column and Boom Welding Manipulator: (Fig.5)
4. Welding Function Elements Equipped in Column and Boom Automatic Welding Equipment:
To get the optimum welding quality and efficiency, there are several important welding function cells equipped in Welding Column and Boom: (Fig.6)
1) Welding torch position adjustment units;
2) Welding seam tracking unit;
3) Welding torch swing for back welding;
4) Welding flux sending and recovery unit;
5) Welding wire feeder;
6) Welding process camera and monitor... (Fig.7)
E. Special Points in Heavy duty Welding Column and Boom:
With increasement on size and loading, several measures should be taken on Heavy duty Welding Manipulator, to make sure safe and reliable working process:
1. Air passageway along the entire length of horizontal Boom of the Heavy duty Welding Manipulator: (Fig.8)
This is for the convenience of operation and maintenance on the large size Heavy duty Welding Column and Boom;
2. Overhead Platform and Climbing Staircase: (Fig.9)
3. Reduce total height of Heavy duty Welding Manipulator and Operator Chair (Fig.10):
1) This is for lowering down gravity center of the Welding Column and Boom, to keep it running more stably;
2) Operator can sit on the chair which is installed at front end of horizontal boom;
3) Meanwhile, it should be strictly managed, to be controlled within total loading capacity of Welding Column and Boom.
F. Technical Parameters of LHZ Series Automatic Column and Boom Welding Equipment:
Model | LHZ 2×2 | LHZ 2×3 | LHZ 3×4 | LHZ 4×4 | LHZ 4×5 | LHZ 5×5 | LHZ 5×6 | LHZ 6×6 | LHZ 7×7 | LHZ 8×8 |
Boom Vertical Stroke (mm) | 2000 | 2000 | 3000 | 4000 | 4000 | 5000 | 5000 | 6000 | 7000 | 8000 |
Boom horizontal stroke (mm) | 2000 | 3000 | 4000 | 4000 | 5000 | 5000 | 6000 | 6000 | 7000 | 8000 |
Boom Vertical Speed | 1000 (mm/min) | 1500 (mm/min) |
Welding Speed: Boom Horizontal Speed | 100 ~ 1200 (mm/min) | 80 ~ 1000 (mm/min) |
Inverter Control and Digital Displayed in real time; Adjusted with speed knob continuously and stepless |
Minimum Distance between Boom Bottom Surface and Rail Top Surface | 740~ 1180 | 1300 |
Max. Loading at the Front End of Boom | 80kg | 120 kg | 200 kg | 500 kg | 400 kg |
Upright Column Revolving Style | Manual turning or motor drive, and locked in position with lever or air cylinders |
Trolley Traveling Speed for Moving type Welding Manipulator | 1000 mm/min. | 1700 mm/min. | 2000 mm/min. |
Internal Span of Moving Rails | 1000 mm | 1000~ 1730 mm | 1730 mm | 2000 mm | 2500 mm |
