A welding positioner with a walking mechanism

Abstract

The invention provides a rolling ring position-changing machine which comprises a lower part bracket, a lower part rolling ring, an upper part rolling ring, a lifting mechanism and axial travelling mechanisms, wherein a rolling ring supporting rolling wheel assembly and a rolling ring driving assembly are arranged on the lower part bracket; the two axial travelling mechanisms are arranged at the bottom of the lower part bracket; the lower part rolling ring is arranged on the rolling ring supporting rolling wheel assembly; the lower part rolling ring and the upper part rolling ring are connected through a rolling ring connecting arm to form an integrated annular rolling ring; a rolling ring first integral ring piece and a rolling ring second integral ring piece with different diameters are arranged on the two side walls of the annular rolling ring correspondingly; the lifting mechanism is arranged on the lower part bracket and on one side of the rolling ring connecting arm; the lower part rolling ring and the upper part rolling ring are provided with a plurality of rolling ring dentate pins; and the rolling ring driving assembly is arranged on the lower part bracket. The rolling ring position-changing machine provided by the invention can meet large and heavy pipeline welding position change, can achieve positioning quickly and accurately, can automatically rotate, is simple to operate and can finish welding work efficiently.

Description

technical field [0001] The invention belongs to the field of welding tooling, and in particular relates to a cylindrical or rod-shaped roller positioner. Background technique [0002] In welding technology, welding positioners are often used in the welding of pipes or other large parts. The welding positioner can achieve high-quality welding of circular seam welding, but in actual welding work, there is a lack of support for heavy or large pipe fittings. Displacement fixture, which makes the welding gun around the welding seam when welding heavy, large pipes or other structural parts, the operation is complicated, and the mechanical arm for mechanical welding is higher, and it is easy to cause the welding axial deviation Therefore, in order to meet the working needs of welding and clamping, it is urgent to develop a positioner with simple operation, accurate displacement and strong practicability. Contents of the invention [0003] In view of this, the present invention a...

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Problems solved by technology

[0002] In welding technology, welding positioners are often used in the welding of pipes or other large parts. The welding positioner can achieve high-quality welding of circular seam welding, but in actual welding work, there is a lack of support for heavy or large pipe fittings. Displacement fixture, which makes the welding gun around the welding seam when welding heavy, large pipes or other structural parts, the operation is complicated, and the mechanical arm for mechanical welding is higher, and it is easy to cause the welding axial deviation Therefore, in order to meet the work needs of welding and clamping, it is urgent to develop a positioner with simple operation, accurate displacement and strong practicability

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