Welding fixing support for elliptical pipe

Abstract

The invention discloses a welding fixing support for an elliptical pipe. The fixing support is characterized in that a cylindrical surface is formed through rotating rollers to guide and support a long shaft of the elliptical pipe in an abutting mode, a fixing supporting plate is matched to support a short shaft of the elliptical pipe in an abutting mode, meanwhile, a rotating shaft and a hydraulic rod are matched to drive the fixing supporting plate to rotate, and therefore, the elliptical pipe can be stably rotated and welded. The fixing support is characterized in that two coaxial outer ring frames are arranged on a base through supporting vertical rods, wherein each outer ring frame is composed of two coaxial circular rings, a plurality of roller frames are arranged on the inner walls of the circular rings in the circumferential direction at equal angles, and the roller frames on the two circular rings are opposite one to one; the rotating rollers are arranged between every two opposite roller frames, and the plurality of rotating rollers on the outer ring frames are matched to form the cylindrical surface; and one ends of a plurality of connecting rods are annularly arranged at one end of one outer ring frame, and the other ends of the plurality of connecting rods extend in the radial direction of the outer ring frames and then bend and extend towards the other end of one outer ring frame.

Description

technical field [0001] The invention relates to a welding fixing support for an elliptical pipe, which relates to a support capable of fixing an elliptical pipe during welding, and belongs to the technical field of mechanical processing equipment. In particular, it relates to a cylindrical surface formed by rotating rollers to guide and support the long axis of the elliptical tube, cooperate with the fixed support plate to support the short axis of the elliptical tube, and at the same time, the rotating shaft and the hydraulic rod cooperate to drive the fixed support plate to rotate, so as to This enables a fixed support for stable spin welding of oval tubes. Background technique [0002] At present, the structure of existing machinery and equipment is becoming more and more complex. In some special cases, standard parts are difficult to meet their needs. The application market of non-standard parts is gradually increasing. Traditionally, when welding round pipes, in order t...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of existing machinery and equipment is becoming more and more complex. In some special cases, standard parts are difficult to meet their needs. The application market of non-standard parts is gradually increasing. Traditionally, when welding round pipes, in order to facilitate welding, Usually, the welding jig of the round pipe is made into a structure that can drive the round pipe to rotate, so that the welder does not need to weld around the round pipe. However, when this kind of round pipe fixture is used for welding oval pipes, due to the The special elliptical cross-section makes it difficult for the welding fixture to firmly hold the pipe wall to drive it to rotate. When rotating, the elliptical pipe is prone to eccentric shaking, so that the welding personnel need to hold the welding torch to move around the welding place during welding. Welding is more inconvenient

[0003] The notification number CN209094835U discloses a new type of oval pipe welding clamping device, which is characterized in that it includes a fixed positioning mechanism, an upper positioning assembly, and a welding base; the welding base is concave, with columns at both ends, and the section of the column is rectangular; The upper surface of the column is provided with a rectangular plate, and the fixed positioning mechanism has two groups of upper positioning assemblies, which are respectively arranged on the upper ends of the two columns of the welding base. When the welding fixture is used for welding, personnel need to go around its joint Circular mobile welding, the welding method is more inconvenient

[0004] The notification number CN109175758A discloses a round pipe welding equipment including a frame, a working platform and a welding manipulator, and also includes a round pipe rotating mechanism and a round pipe supporting structure. The working platform is arranged on the frame, and the round pipe rotating mechanism and the round pipe supporting structure are arranged on the working platform along the same straight line, the welding manipulator is set on one side of the working platform, the round pipe rotating mechanism is used to clamp the end of the round pipe and make the round pipe rotate, the welding The manipulator and the round tube rotation mechanism maintain linkage operation. The three-jaw chuck in the rotation structure of the device is difficult to fix and clamp the oval tube stably. It can only perform effective fixed rotation auxiliary welding on the round tube, and cannot be applied to the oval tube.

Images