The welding roller refers to the use of the friction between the weldment and the active roller to drive the circular weldment to rotate to complete the welding of the circular weld. The welding speed can be adjusted by the rotation speed of the active roller on the roller. The rollers should always be kept on the same axis so that the workpiece is not easy to deform and slip when rotating. The welding rollers are mainly divided into self-adjusting welding roller, adjustable welding roller, anti-channeling welding roller, walking welding roller, and long-axis welding roller.
The self-adjusting welding roller can automatically adjust the swing angle of the wheelset according to the diameter of the workpiece, and can automatically adjust the center. It is mainly used for the assembly or welding of cylindrical workpieces such as pipes, containers, boilers, and oil tanks. , When the welding power supply is matched, the inner and outer longitudinal seams and inner and outer circumferential seams of the workpiece can be welded.
|Diameter of shell||Min.(mm)||350||600||600||600||850||900||900||900|
|Speed regulating mode||Frequency control||Frequency control||Frequency control||Frequency control||Frequency control||Frequency control||Frequency control||Frequency control|
|Dimensions||Length(mm)||Actice 1585 Passive 1450||Actice 2165 Passive 2125||Actice 2410 Passive 2410||Actice 2410 Passive 2410||Actice 2600 Passive 2600||Actice 2600 Passive 2600||Actice 3020 Passive 3020||Actice 3020 Passive 3020|
|Width(mm)||Actice 872 Passive 392||Actice 1010 Passive 425||Actice 1260 Passive 550||Actice 1290 Passive 550||Actice 1360 Passive 590||Actice 1360 Passive 590||Actice 1745 Passive 760||Actice 1770 Passive 760|
The adjustable welding roller consists of a driving wheel and a driven wheel. The active roller operation is controlled and driven by two motors. Through the speed-regulating motor and the speed-regulating controller, the variable frequency speed regulation or electromagnetic speed regulation realizes step-less speed change. The rotation speed of the workpiece can be adjusted to 6-60 meters/hour, which can meet the requirements of manual Welding, automatic surfacing, automatic submerged arc welding, and other different welding needs. The adjustable welding roller can adjust the distance between the main and driven rollers through the screw or screw to meet the welding requirements of different specifications.
|Cylinder diameter||Minimum (mm)||300||300||300||300||400||600||800||1000|
|Roller speed (m/h)||6~60||6~60||6~60||6~60||6~60||6~60||6~60||6~60|
|Motor power (kw)||0.55*2||0.55*2||0.75*2||0.75*2||0.75*2||1.5*2||2.2*2||2.2*2|
|Speed mode||Frequency Control||Frequency Control||Frequency Control||Frequency Control||Frequency Control||Frequency Control||Frequency Control||Frequency Control|
|Dimensions||Length(mm)||Actice 2250 Passive 1750||Actice 2800 Passive 2200||Actice 2900 Passive 2200||Actice 3000 Passive 2600||Actice 3000 Passive 2600||Actice 3750 Passive 3000||Actice 3500 Passive 3500||Actice 3850 Passive 3600|
|Width(mm)||Actice 600 Passive 460||Actice 620 Passive 480||Actice 620 Passive 480||Actice 650 Passive 500||Actice 670 Passive 520||Actice 720 Passive 530||Actice 750 Passive 550||Actice 870 Passive 600|
The principle of anti-movement welding roller holder is the axial movement of the weldment on the roller, and the weldment itself is in a spiral motion. If measures can be taken, the left-hand rotation of the weldment can be changed to right hand or right in time. The rotation is changed to left-handed until the weldment no longer makes a spiral movement. The anti-movement welding roller uses a photoelectric encoder to detect the movement amount of the workpiece, and the system controller controls the lifting of the driven roller. The displacement detection frame is placed on one end of the workpiece, and the detection wheel is pressed on the end face of the workpiece (the end face must be processed). The detection wheel can rotate with the workpiece. When the workpiece moves axially, the detection wheel will follow the workpiece, and the photoelectric coding The detector detects the movement amount and direction of the workpiece, and its signal is input to the system controller for processing. The controller will adjust the lifting stroke, lifting speed, and lifting interval time of the driven roller according to the amount of movement, and control up or down according to the direction of movement. The movement of the workpiece always fluctuates between -1.5mm and +1.5mm, so that the movement of the workpiece is limited to a certain range, which can meet the needs of welding.
|Metal wheel size(mm)||Φ500x200||Φ800x300||Φ1000x350||Φ1000x400||Φ1100x550|
The walking welding roller is based on the self-adjusting welding roller or the adjustable welding roller, and the guide rail is added. The walking welding roller can move back and forth on the guide rail.
|Adapt to the workpiece range (mm)||φ200-1800||φ250-2300||φ300-2800||φ500-3500||φ600-4200||φ750-4800||φ850-5000||φ1000-5500|
|Roller diameter and width||Rubber wheel(mm)||φ200×80||φ250×100||φ300×120||φ350×120||φ400×120||φ450×120||φ500×120||φ500×120|
|Roller linear speed (m/h)||6-60||6-60||6-60||6-60||6-60||6-60||6-60||6-60|
|Motor power (kw)||2×0.18||2×0.37||2×0.55||2×1.1||2×1.5||2×2.2||2×3||2×4|
|Adjustable spacing method||Adjustable screws|
|Speed mode||Frequency conversion stepless speed regulation or DC stepless speed regulation|
long-axis welding roller
The long-axis welding roller is a piece of displacement equipment that uses the friction between the two long-axis rollers and the workpiece to drive the workpiece to rotate. It is suitable for the spot welding of thin-walled, small-diameter, multi-tube weldments and circumferential seams. The rollers are arranged along two parallel shafts, one row connected with the driving device is the driving roller, and the other row is the driven roller.