Application of welding positioner

Welding positioner is a kind of mechanical device which changes the weldment, welder or welder to complete mechanized and automatic welding. It is used to drag the workpiece to be welded and make the welding seam move to the ideal position for welding operation. It changes the welding operation that may need vertical welding and overhead welding, which is difficult to ensure the welding quality. Thus, the welding quality is guaranteed, the welding productivity and the safety of the production process are improved.

The welding positioner is a kind of positioner which can rotate and tilt the workpiece, so that the weld on the workpiece is placed in a favorable position for welding. It is mainly used for turning and welding non long workpieces such as frame, frame, flange and head, and can also be used for assembly, cutting and inspection. The welding roller carrier is a kind of welding part displacement machine which drives the cylindrical workpiece to rotate with the help of the friction force between the active roller and the workpiece.
It is mainly used for the assembly and welding of cylindrical workpiece, and is a common process equipment in the production of boiler vessels. Welding turret is a kind of simplified positioner. It rotates the workpiece around the vertical axis or at a fixed angle. It is mainly used for welding, surfacing and cutting of rotary workpiece.

Welding turnover machine is a kind of positioner which can rotate or tilt the workpiece around the horizontal axis to make it in a favorable position for welding. It is mainly suitable for welding of beams, columns, frames, elliptical containers, etc. The function of welding manipulator is to accurately send and keep the welding head in the position to be welded, or to move the welding head along the specified track with the selected welding speed. The welding operator, positioner and roller carrier can be used to weld longitudinal seam, circumferential seam and spiral seam. It can also be used for automatic surfacing, cutting, flaw detection, grinding, painting and other operations.

Technical requirements of welding positioner the welding positioner shall comply with the value series of load capacity and relevant technical requirements specified in the industry standard.

The main technical requirements of welding positioner are as follows:

(1) the rotary drive should realize stepless speed regulation and be reversible. Within the range of rotating speed, the speed fluctuation under the maximum load is less than 5%.

(2) The tilting drive should be stable, without shaking under the maximum load, and the whole machine should not overturn. If the maximum load (the maximum mass of the workpiece allowed by the positioner) exceeds 25kg, it shall have self driving function. The tilting mechanism should have the function of self-locking, not sliding under the maximum load, safe and reliable. A limited position device should be set up to control the inclination angle and have angle indication sign.

(3) The positioner should be equipped with conductive device to avoid welding current passing through the transmission parts such as bearing and gear. The resistance of conductive device shall not exceed lmq, and its capacity shall meet the requirements of welding rated current.

(4) The relationship between the maximum load and eccentricity should be clearly explained, and the impact load should be fully considered to ensure that the equipment has sufficient safety factor.

In China, welding positioner has quietly become an indispensable equipment in the manufacturing industry. In the welding field, it is classified as welding auxiliary machine. In recent years, this product has been greatly developed and widely used in China's construction machinery industry.

Welding products production is one of the few manufacturing industries which are still in the semi industrial mode of production, which has a huge potential for improvement. The domestic self-developed multi degree of freedom welding and cutting robot can realize the continuous cutting of space complex closed curve and the continuous repeated welding of complex closed curve. It has been applied in the boiler vessel manufacturing industry. The robot position adjustment is intuitive and simple, and the operator can realize skilled operation without professional training. Welding positioner will be more and more used in production.