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Welding method and assembly tooling of inner and outer cylinders with through-hole support for connecting pipes

A technology of assembly tooling and inner and outer cylinders, applied in auxiliary devices, manufacturing tools, welding equipment, etc., can solve problems such as difficulty in ensuring concentricity and affecting the assembly of air delivery pipes, and achieve the effect of improving work efficiency

Active Publication Date: 2017-02-01
YICHANG MARINE DIESEL ENGINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, it is difficult to ensure the size of the support through hole of the inner and outer cylinders with holes and the concentricity with the square through holes on the inner and outer cylinders after welding, which affects the assembly of the air delivery pipe

Method used

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  • Welding method and assembly tooling of inner and outer cylinders with through-hole support for connecting pipes
  • Welding method and assembly tooling of inner and outer cylinders with through-hole support for connecting pipes
  • Welding method and assembly tooling of inner and outer cylinders with through-hole support for connecting pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The takeover structure in this example is as follows Figure 8~10 As shown in , the outer cylinder 1 is tapered, with flanges at both ends, the outer cylinder 1 is divided into two semi-rings by the Huff line 9, the inner cylinder 2 is cylindrical, with flanges at both ends, and the inner cylinder 2 is divided into two half rings by the Hough line 9, wherein the height of the inner cylinder 2 is lower than that of the outer cylinder 1. There are 10 outer cylinder through holes 101 evenly distributed along the circumference on the outer cylinder 1, and 10 inner cylinder through holes 201 are also provided at the corresponding positions of the inner cylinder 2. 201 position, the outer cylinder 1 and the inner cylinder 2 are welded together, and the inner and outer cylinder support 3 with holes is divided into a support upper section 31 and a support lower section 32, and a step is provided on the support upper section 31 and the support lower section 32, and the support c...

Embodiment 2

[0045] A method of assembling welding using the above-mentioned assembly tooling with through-hole support on the inner and outer tubes of the connecting pipe, comprising the following steps:

[0046] 1. Process the upper support section 31 and the lower support section 32;

[0047] Such as image 3 , 4 Among them, the positioning of the supporting and positioning tooling 4 has a tolerance of ±0.05mm. Here the size is used to control the size of the support through hole 33 . Grooves for positioning the inner and outer cylinder flanges are processed on the upper plane of the assembly tooling base 6, namely the outer cylinder flange positioning groove 61 and the inner cylinder flange positioning groove 62. The depth of the groove is 5~10mm. Groove assembly of the flanges of the inner and outer cylinders ensures the concentricity of the inner and outer cylinders and the assembly size of the supporting and positioning tooling 4.

[0048] 2. On the tooling base 6, draw the suppor...

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Abstract

The invention provides a group welding method and an assembly fixture for an inner barrel and an outer barrel of a connecting pipe with through hole support. The assembly fixture for the inner barrel and outer barrel of the connecting pipe with the through hole support comprises a fixture base and multiple supporting and locating fixtures, wherein an outer barrel flange locating slot used for locating a position of the outer barrel and an inner barrel flange locating slot used for locating a position of the inner barrel are formed in the upper end face of the fixture base; an upper locating support and a lower locating support are fixedly arranged on a backing plate of the supporting and locating fixtures, and the supporting and locating fixtures are fixedly arranged on the fixture base and used for locating and supporting positions of multiple upper locating and supporting sections and multiple lower supporting sections. The group welding method for the inner barrel and outer barrel of the connecting pipe with the through hole support comprises the following steps: placing upper supporting sections on the upper locating support of the supporting and locating fixtures, placing lower supporting sections on the lower locating support of the supporting and locating fixtures, and adjusting positions of the upper supporting sections and the lower supporting sections according to an outer barrel through hole and an inner barrel through hole; and fixing the upper supporting sections and the lower supporting sections with the outer barrel and the inner barrel through spot welding, so that group welding and assembling of the inner barrel and outer barrel of the connecting pipe with the through hole support are realized. The group welding method and the assembling fixture for the inner barrel and outer barrel of the connecting pipe with the through hole support have the advantages that requirements on dimensions and quality of a welding line during the group welding for the inner barrel and outer barrel of the connecting pipe can be guaranteed, and dimensional requirements for assembling the inner barrel and the outer barrel with hole support can be met.

Description

technical field [0001] The invention relates to the construction field of assembly and welding of complex parts with through-hole supports on the inner and outer cylinders of connecting pipes, in particular to an assembly and welding method and assembly tooling for connecting inner and outer cylinders with through-hole supports. Background technique [0002] The carbon steel body of the connecting pipe is a cylinder with front and rear flanges. The outer cylinder is conical and the inner cylinder is cylindrical. There is a support with holes in the inner and outer cylinders between them, and a through hole for the air delivery pipe to pass through is arranged on the support with holes in the inner and outer cylinders. There are many parts and the structure is very complicated. In particular, the precision requirements of the through holes on the support with holes in the inner and outer cylinders are relatively high. The support with holes in the inner and outer cylinders i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04B23K9/173
CPCB23K9/173B23K37/0426
Inventor 邵成文高远军张虎
Owner YICHANG MARINE DIESEL ENGINE
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