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Turning and milling machining clamp for aero-engine exhaust nozzle assembly

A technology for aero-engines and tail nozzles, which is used in manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve problems such as difficulty in ensuring the stability of the workpiece, inability to be in place in one step, and alignment multiple times, so as to avoid loosening and running. Positioning and chattering, the effect of improving clamping efficiency

Inactive Publication Date: 2021-10-08
AECC AERO SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a turning and milling fixture for an aero-engine exhaust nozzle assembly to solve the problem that the existing technology cannot be in place in one step when clamping, and it will be aligned multiple times. It is difficult to ensure the stability of the workpiece, which will lead to There are problems of loose movement and trembling in

Method used

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  • Turning and milling machining clamp for aero-engine exhaust nozzle assembly
  • Turning and milling machining clamp for aero-engine exhaust nozzle assembly
  • Turning and milling machining clamp for aero-engine exhaust nozzle assembly

Examples

Experimental program
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Embodiment

[0041] refer to figure 1 , a turning and milling fixture for an aero-engine exhaust nozzle assembly, comprising: a base 10 , a bottom outer limit assembly 20 , a bottom inner limit assembly 30 , a support assembly 40 , a top limit assembly 50 and an outer pressing assembly 60 .

[0042] refer to figure 1 and figure 2 , The base 10 is disc-shaped, and a plurality of screw holes and pin holes are opened on the base 10 for carrying the aero-engine exhaust nozzle assembly and various fixture components. The base 10 is connected with a plurality of suspension rings 11, and the base 10 can be driven to move by the suspension rings 11, thereby facilitating the hoisting of the overall fixture. The aero-engine exhaust nozzle assembly is welded by the sheet metal cylinder placed below and the flange. In this process, the top mounting edge of the flange away from the sheet metal cylinder needs to be turned and milled.

[0043] refer to figure 1 , figure 2 and image 3, the bottom...

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Abstract

The invention discloses a turning and milling machining clamp for an aero-engine exhaust nozzle assembly, and belongs to the technical field of aero-engine part manufacturing. The turning and milling machining clamp for the aero-engine exhaust nozzle assembly comprises a base, an outer limiting assembly, a bottom inner limiting assembly, a supporting assembly and a top limiting assembly. The base of the clamp is used for bearing all assemblies and the aero-engine exhaust nozzle assembly, the bottom outer limiting assembly and the bottom inner limiting assembly are in cooperation, and therefore a metal plate barrel is clamped and positioned from the inner side and the outer side; and supporting columns are used for lifting a supporting plate, the supporting plate is used for bearing the top limiting assembly, and the top limiting assembly makes contact with the inner wall of a flange above the metal plate barrel so as to tightly jack the inner wall of the flange. An outer pressing assembly makes contact with a boss on the side wall of the metal plate barrel, and therefore the metal plate barrel is pressed, the metal plate barrel and the flange welded to the upper portion of the metal plate barrel are in a stable state, and the problems of loosening, displacement and vibration in the machining process are avoided.

Description

technical field [0001] The invention relates to the technical field of manufacturing aero-engine spare parts, in particular to a turning and milling fixture for an aero-engine tail nozzle assembly. Background technique [0002] The exhaust nozzle assembly is an important component of the aero-engine, and the high-temperature gas after the combustion of the engine is discharged from the outlet of the engine exhaust nozzle assembly. Generally, the flange and the sheet metal cylinder are welded and machined. The tail nozzle assembly is installed at the tail of the engine. One end of the flange mounting side is connected to the engine case through the bolt hole on the mounting side, and one end of the cylinder is suspended. In order to ensure the relative position between the outlet of the tail nozzle assembly and the engine when the engine is assembled, after the tail pipe assembly is welded, the mounting edge of the flange needs to be machined and drilled to ensure the size of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/062
Inventor 张晓华李雪梅陈静谭小波陈海筠刘召虎袁术林
Owner AECC AERO SCI & TECH CO LTD
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