Position switching component for bending device of long U-shaped pipe bender

Abstract

The invention relates to a position switching component for a bending device of a long U-shaped pipe bender, in particular to a position switching component for a bending device of a long U-shaped pipe bender, which can be used for machining two pipes with different pipe diameters. The position switching component comprises a bending bracket, a bending soleplate, a bending mould and a threaded connection mechanism, wherein the bending soleplate is provided with a first station and a second station on the bending bracket; the position switching component further comprises a longitudinal positioning mechanism; the longitudinal positioning mechanism comprises a front positioning part and a rear positioning part fixedly arranged on the bending soleplate; when the bending soleplate is at the first station, the positioning surface on the front side of the bending bracket is propped against the front positioning part on the outer side of the bending bracket; the distance between the positioning surface on the rear side of the bending bracket and the rear positioning part on the outer side of the bending bracket is equal to the longitudinal distance between the first station and the second station; and when the bending soleplate is at the second station, the positioning surface on the rear side of the bending bracket is propped against the rear positioning part. The position switchingcomponent has the advantages that the position switching component has a reasonable structure, is accurate to position, is convenient to operate and is easy to manufacture.

Description

technical field [0001] The invention relates to a position switching part of a bending device of a long U pipe bending machine, in particular to a position switching part of a bending device of a long U pipe bending machine capable of processing two pipes with different diameters. Background technique [0002] As a compact heat exchanger, the tube-fin heat exchanger has a wide range of applications in the refrigeration industry. With the technical development of the air conditioning and refrigeration industry, and the further strict control of environmental protection regulations, the requirements for the heat exchange performance of the heat exchange unit itself are more stringent to compensate for the low performance of alternative refrigerants. Therefore, the heat exchanger structure (type of heat exchange tubes and fins) and the related heat exchanger forming process are important factors affecting the heat exchange performance, and are of great significance for improvin...

AI Technical Summary

Problems solved by technology

[0003] When the existing long U pipe bending machine bends a long U (the long U is a U-shaped pipe, also known as a hairpin pipe or a U-shaped long pipe), it is necessary to select the corresponding bending device according to the diameter of the pipe fitting. There are two kinds of pipe diameters of the pipe fittings, and the relevant parts (bending molds) on the bending device must be replaced, and this replacement is very troublesome.

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