1. The Classification on Heavy duty Elevating type Head and Tail Welding Positioner:
The Large Welding Positioner in this product section is the “jumbo” in sub group of Head and Tail Elevating type Welding Positioner: For Weld Turning Table loading capacity of 10Ton and above, the equipment should be classified as Heavy duty Welding Positioner.
2. The Critical Technical Issues with Heavy duty Head and Tail Elevating type Welding Positioner:
1) This group of Heavy duty Welding Positioner shares the similar structure and control principle as light and medium duty Elevating type Head and Tail Welding Positioner.
2) Meanwhile, with the increasement on loading capacity of Weld Turning Table, several technical special points are significant for operation of these Large Elevating type Head and Tail Welding Positioner. Please check below segments.
3. Running Stability in Heavy duty Elevating type Head and Tail Welding Positioner:
1) Under max. loading of the Weld Turning Table, fluctuation on revolving speed of workpiece around horizontal shaft should be kept within ±5%;
Heavy duty Elevating type Head and Tail Welding Positioner: (Fig.1)
2) The three control axis in the Head and Tail Welding Positioner, please check below photo: (Fig.2)
a) Horizontal axis 0°~360° revolving of horizontal boom (Yellow frame);
b) Weld Turning Table rotation 0°~360° (Orange frame);
c) The entire working cell elevation (Blue frame);
For detail introduction, please check product section of “Three Degree of Freedom Head and Tail Welding Positioner”. These three degree of freedom do not exhibit shaking phenomenon even under max. loading of the Heavy duty Head and Tail Welding Positioner.
4. Critical Parameters in Designing Structure of Large Head and Tail Elevating type Welding Positioner:
1) Structure of this Large Welding Positioner, if designed properly, should be like this: For the whole set of the Heavy duty Elevating type Head and Tail Welding Positioner,in the process the workpiece is fit on the Weld Turning Table and the horizontal beam revolves, the gravity center of horizontal revolving should be approach, or, in best condition, coincide with the revolving axis of horizontal beam;
2) In this way, it can reduce revolving torque of the boom and Weld Turning Table in great extent. This is a critical factor for Heavy duty Head and Tail Welding Positioner.
5. Large Size Workpiece in Large Elevating type Head and Tail Welding Positioner:
1) Large Heavy duty Welding Positioner usually involves large size of workpiece. So, for on site layout of the Large Welding Positioner, you should consider whether there is potential risk of interference between workpiece and floor surface when the Weld Turning Table and workpiece is revolved to its bottom position;
2) This is the reason for Large Head and Tail Elevating type Welding Positioner, it is not uncommon that to have a pit dig right beneath the horizontal beam and Weld Turning Table of the Heavy duty Welding Positioner;
Heavy duty Elevating type Head and Tail Welding Positioner: (Fig.3)
3) Another issue needs to be paid attention to is for circumferential welding, that rotation speed of Weld Turning Table and workpiece should be calculated based on its rotating radius and required welding speed. And check whether this rotation speed is within the range of boundary of the Heavy duty Head and Tail Welding Positioner.
6. Operation Tips on Working Process of Heavy duty Elevating type Head and Tail Welding Positioner:
Supplementary Climbing Appliance for Large Welding Positioner:
1) Welding job performed on this Large Elevating type Head and Tail Welding Positioner is usually in the height of high level, or “in the air”;
Heavy duty Elevating type Head and Tail Welding Positioner: (Fig.4)
2) Supplementary units should be used to raise height of operator. For example, climbing ladder of proper size and structure, or electric elevating platform, etc.
7. Technical Specifications of Heavy duty Elevating type Head and Tail Welding Positioner:
Every product in this series of Large Elevating type Head and Tail Welding Positioner is personalized and tailor made. Its technical parameters depend on specific application case.
