A jig for controlling brazing deformation of a fuel manifold

A technology of deformation control and fuel main pipe, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problem that the flatness of the end face of the nozzle cannot meet the design requirements, so as to reduce the man-hours of calibration, solve the problem of flatness, and reduce the difficulty of calibration Effect

Active Publication Date: 2020-06-23
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the flatness of the end face of the nozzle after welding cannot meet the design requirements. Therefore, a fixture must be designed, which can not only facilitate on-site operation and size control, but also ensure the quality of the weld seam of the parts, the size of the components, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A jig for controlling brazing deformation of a fuel manifold
  • A jig for controlling brazing deformation of a fuel manifold
  • A jig for controlling brazing deformation of a fuel manifold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0021] The present invention needs to braze and connect 24 nozzles with gas hoods to the main and auxiliary oil pipes, and ensure that the flatness of the 24 nozzles after brazing is ≤0.3mm.

[0022] Such as figure 1 As shown, there is a pair of symmetrical shoulders 5 below the upper surface of the spout, such as figure 2 and image 3 As shown, structural part 1 is placed on the upper end surface of the spout across two shoulders. The width is 7mm, wherein the vertical side length on the outside (that is, outside the circumference of the fuel main pipe or the circumference of the annular base 2) is 12mm, and the length on the inside vertical side is 11.8mm, and the difference between the two is 0.2mm.

[0023] Such as Figure 4 As shown, 24 observation ports 3 are arranged at equa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a clamp for controlling braze welding deformation of a fuel manifold. The clamp comprises a pressing unit positioned on the upper end surface of a nozzle and a supporting unitpositioned on the lower end surface of the nozzle, wherein the pressing unit comprises a stainless steel structural part (1) with a door-shaped section; two vertical sides of the structural part (1) are equal in width, but not equal in length; the supporting unit comprises a circular-ring-shaped base body (2), wherein observing holes (3) are formed in the outer periphery of the circular-ring-shaped base body (2) at equal intervals; and a supporting base (4) is arranged on a position, on the upper end surface of the circular-ring-shaped base body (2), between two adjacent observing holes (3). The clamp overcomes the problem that the end surface of the braze-welded nozzle is irregular and tilts, so that design requirements with planeness smaller than or equal to 0.3 mm are met, follow-up correcting difficulty is reduced, correcting working hours are shortened, and production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of brazing, and in particular relates to a fixture for controlling the deformation of a fuel oil main pipe after brazing. Background technique [0002] The fuel main pipe is an important part of the engine, and the fuel required for the engine to work must be transported through the main pipe, so the assembly welding process of parts is particularly important. The parts need to connect 24 nozzles with the oil pipe by brazing to form a ring assembly (that is, 24 nozzles are evenly distributed on the circumference of the oil pipe), and the brazed parts ensure the fuel flow, fuel distribution uniformity and spray quality. question. There are a total of 96 welding seams in the welding of the components of the fuel manifold; after welding, there are size control requirements such as position and nozzle flatness, and it is difficult to guarantee the size during the brazing process. [0003] Structural analysis i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B23K3/08
CPCB23K3/087
Inventor 井启芳李洪波黄顺谭跃江徐吉福涂泉
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap