HLK Hydraulic Jack-up Anti-Drifting Adjustable Welding Rotator by Bolt

The HLK series Hydraulic Jack Up Welding Rotator discussed in this product section, is the sophisticated version of bolt Adjusting Welding Turning Roll, added with anti drifting capability.

1. Background of HLK Series Hydraulic Anti Drifting Welding Rotator:

1) What Quality Issue is Anti Drifting Welding Roller Bed to Solve?

a) During working period of Welding Rotator and hence revolve of workpiece, axial drifting of the cylindrical parts on the Welding Turning Roll is an often happened phenomenon, especially on those large diameter and thick wall workpieces, that it is necessary to be with several passes of circumferential external welding seam;

b) Such axial drifting (Deflect) of large pipes brings along problem of inferior welding quality and lower productivity of the Welding Rotator, which should be taken measures to be avoided;

2) The Effective Solutions to Eliminate Workpiece Drifting in the Welding Roller Bed:

a) Besides using welding seam tracing unit in the Welding Rotator, another more valid solution is to introduce anti drifting function on the Welding Turning Roll;

b) Hence comes along development of the hydraulic Anti Drifting Welding Turning Roll, which see extensive use in the field of large tanks fabrication and joint.

2. Working Principle of HLK Series Hydraulic Anti Drifting Welding Roller Bed:

1) Power Driving Source in Anti Drifting Welding Rotator:

From the perspective of driving power on workpiece revolve and elevation, this special made Welding Turning Roll belongs to the specie of Hydraulic Anti Drifting Welding Turning Roll. Which means, its rectifying unit is hydraulic driven;

2) Closed Loop Control Circuit in Anti Drifting Welding Roller Bed:

a)  A movable electric detecting unit of splitting installation type is equipped with this Hydraulic Jack Up Welding Roller Bed;

b) A piece of displacement sensor is fit on the above mentioned movable splitting type detecting unit of the Welding Rotator;

3) Detecting and Control Loop in Anti Drifting Welding Turning Roll:

a) During operation of Anti Drifting Welding Rotator, or rotation of the cylindrical workpiece, the workpiece displacement detecting unit is put at the proper position, so as to making the displacement sensor having direct contact with terminal surface of workpiece;

b) A range of allowable deviation tolerance, or drifting tolerance, is set ahead of time into the control system of the Hydraulic Anti Drifting Welding Turning Roll, before starting on its Hydraulic Jack Up Welding Roller Bed. For example, ±3mm in Wuxi JACK products;

c) The displacement sensor detects on real time deviation of workpiece all along, during the entire working period of the Anti Drifting Welding Rotator;

d) Whenever displacement of the workpiece detected exceeds the allowable deviation limit tolerance, hydraulic oil cylinder acts: It uplifts terminal of the workpiece, to make the workpiece rotation back to within the preset eligible tolerance again;

e) This detecting and correcting circle continues all along, during the entire working phase of the Hydraulic Anti Drifting Welding Turning Roll, making sure deviation of workpiece to be confined all the while.

3. Applicable Loading Weight of HLK Models Hydraulic Anti Drifting Welding Turning Roll:

1) This group of hydraulic drive Anti Drifting Welding Roller Bed has loading capacity of 60 Ton up to 600 Ton, from the product group of HLK series bolt adjusting Welding Rotator;

2) Supplementary Notes on HLK Series Hydraulic Anti Drifting Welding Rotator:

a) In the HLK series bolt adjusting models, there is another kind of Hydraulic Jack Up Welding Roller Bed which works together with Welding Positioner;

b) This product is used for tilting up the workpiece, instead of introducing Anti drifting function. For detail, please check product section of “Custom Made Tilting type for Industry”.

4. Classification on Hydraulic Jack Up Welding Roller Bed with Anti Drifting Function:

1) Besides dividing the Anti Drifting Welding Rotator in the criteria of loading weight as the above mentioned, this group of products can also be divided into stationary type, or moving type;

2) The Anti Drifting Welding Rotator we introduce in this product section is stationary design;

3) The moving type Anti Drifting Welding Rotator we will have discussion in the next product section of “HLK Anti Drifting and Moving Adjustable by Bolt”.

5. Technical Parameters of HLK Series Hydraulic Anti Drifting Welding Rotator: