Large irregular bus-shaped surface shell uniform thinning machining method and device

A processing device and processing method technology, applied in positioning devices, large fixed members, metal processing equipment, etc., can solve the problems of poor chemical milling accuracy, large environmental pollution, and long production cycle.

Active Publication Date: 2021-04-02
SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, chemical milling is mainly used for the uniform thinning of large thin-walled parts. However, the precision of chemical milling is poor, the environment is polluted, and the production cycle is long.

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  • Large irregular bus-shaped surface shell uniform thinning machining method and device
  • Large irregular bus-shaped surface shell uniform thinning machining method and device
  • Large irregular bus-shaped surface shell uniform thinning machining method and device

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Embodiment Construction

[0045] Specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0046] The object of the present invention is a new type of aluminum alloy plate. The inner surface is supported by an ellipsoidal mold tire, and the outer surface is supported by a tail top pressure tool. The parts to be processed are formed by spinning into the same ellipsoidal surface of the inner surface. Thin machining provides blanks.

[0047] After the shell blank is formed, due to the uneven distribution of the anisotropy o...

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Abstract

The invention discloses a large irregular bus-shaped surface shell uniform thinning machining method and device. According to the large irregular bus-shaped surface shell uniform thinning machining method and device, a programmable uniform thinning model is generated, the blank curvature change rule is combined, and a sectional type turning method and a layered turning method are utilized to complete a certain aluminum alloy dry cutting process; and a set of shell blank uniform thinning machining device system is designed and directly added on numerical control equipment, so that the requirements of uniform thinning machining of blanks in a forming mode such as spinning/casting can be met, the requirements of the sectional type turning process and the layered turning process are met, the requirements of the large-end rigid clamping process are met, the error caused by main shaft jumping in the turning process is solved, precision compensation is realized, uniform thinning machining ofparts is realized, the problems of low chemical milling efficiency and heavy pollution after the parts are taken down through spinning and subjected to heat treatment deformation are solved, and the requirements of weight and precision are met.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method and device for uniformly thinning large-scale irregular generatrix-shaped surface shells. Background technique [0002] In the field of aerospace, with the continuous improvement of the performance requirements of new products, the requirements for overall weight reduction, high structural rigidity and high-precision control of dimensions are becoming more and more stringent. Products that use new materials for large-scale aluminum alloy integral spinning / casting / etc. It is a key component and a key structure for the successful operation of the entire system. A large aluminum alloy shell is formed by aluminum alloy plates. The inner and outer surfaces of the parts are ellipsoidal. The inner surface is no longer processed, and the shape is thinned to ensure the uniformity of the overall thickness. The wall thickness accuracy tolerance of each circumfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00B23B5/00B23B21/00B23Q17/20B23Q3/06B23Q1/25
CPCB23B1/00B23B5/00B23Q17/20B23Q3/065B23Q1/25
Inventor 钟涵杨帆陈勇林磊贺飞飞焦京俊余杭卓蔡奇彧吴津臣
Owner SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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