Cabin processing method and bulging tooling used in same

A processing method and cabin technology, which are applied in the field of aircraft cabin processing and bulging tooling, can solve the problems of cabin perimeter exceeding the error range and large product gap, and achieve simple structure, reduced manufacturing cost, and reduced precision requirements. Effect

Active Publication Date: 2013-11-06
北京新航钛空天技术有限公司
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AI Technical Summary

Problems solved by technology

The existing manufacturing technology of the cabin section is to weld the plate into a cylinder and then shape it to the required size. The circumference of the cabin section obtained exceeds the error range, which has led to an increasing gap between the cabin section of our aircraft and the products of the weapon power.

Method used

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  • Cabin processing method and bulging tooling used in same
  • Cabin processing method and bulging tooling used in same
  • Cabin processing method and bulging tooling used in same

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Embodiment Construction

[0034] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation methods and steps of the cabin processing method proposed according to the present invention and the bulging tooling used are described below. , structure, feature and effect thereof, detailed description is as follows.

[0035] see figure 2 Shown, the cabin processing method of preferred embodiment of the present invention, it mainly comprises the following steps: (1), rough blank blanking molding; (2), cabin section outer circle; (3), cabin section inner hole The size of the inner hole of the cabin section is slightly smaller than the nominal size; (4), the bulging tooling bulging with a conical expanding core and an expanding petal matched with the conical expanding core is used to achieve the required size.

[0036] T...

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Abstract

The invention relates to the technical field of aerospace industries, in particular to an aircraft cabin processing method and a bulging tooling used in the same. The method comprises the following steps: 1, blank blanking; 2, machining an excircle; 3, machining an inner hole, wherein the size of the machined inner hole is smaller than that of a nominal size; 4, using a tooling to perform bulging up to meet a required size. According to the method, the machining and the bulging processing are adopted, so that the precision requirements on the machining are greatly reduced, the production efficiency is improved, the consistency and the qualification rate of finished products are greatly improved, the manufacturing cost is relatively reduced, the cost is greatly reduced, and the economic efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of the aerospace industry, in particular to a cabin section processing method of an aircraft and a bulging tool used therefor. Background technique [0002] The cabin section of an aircraft is a cylindrical thin-walled piece of titanium alloy. Usually, for the convenience of installation and processing, it is divided into several sections, called cabin sections. With the development of aerospace technology, the performance requirements of space vehicles are getting higher and higher, and the requirements for manufacturing technology of cabin sections are also becoming more and more precise. An aircraft compartment (such as figure 1 As shown), it is a large-diameter thin-walled long pipe, and its diameter requirements are extremely strict, and the perimeter tolerance of the cabin is required to be within ±0.10mm. The existing manufacturing technology of the cabin section is to weld the plate into a cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21D39/20
Inventor 胡鑫王振强胡建国何东马刚刚杜鹃赵林森罗璇
Owner 北京新航钛空天技术有限公司
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