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A method and device for uniformly thinning a large-scale irregular busbar-shaped surface shell

A processing method and processing device technology, applied in the field of uniform thinning processing method and device for large irregular busbar-shaped shells, can solve the problems of poor chemical milling precision, large environmental pollution, long production cycle, etc., and achieve uniform thinning Processing, meeting weight and precision requirements, and realizing the effect of precision compensation

Active Publication Date: 2022-07-01
SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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  • 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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  • A method and device for uniformly thinning a large-scale irregular busbar-shaped surface shell
  • A method and device for uniformly thinning a large-scale irregular busbar-shaped surface shell
  • A method and device for uniformly thinning a large-scale irregular busbar-shaped surface shell

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Embodiment Construction

[0045] The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

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

[0047] After the shell blank is formed, subject to the uneven distribution of the a...

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Abstract

The invention discloses a method and a device for uniformly thinning a large-scale irregular busbar-shaped shell. The invention completes a certain aluminum alloy dry cutting process by generating a programmable uniform thinning model, combining with the change rule of the curvature of the blank, and using the segmented and layered turning methods; design and directly add a set of shell blanks on the numerical control equipment The uniform thinning processing device system can meet the uniform thinning processing of blanks in forming methods such as spinning / casting, meet the requirements of segmented and layered turning processes, meet the requirements of large-end rigid clamping processes, and solve the problem of spindle runout during turning. The resulting errors can be compensated for precision, and the parts can be uniformly thinned. It can replace the problems of low efficiency and heavy pollution such as the use of chemical milling after the parts are spinned to remove heat treatment deformation, and meet the weight and precision requirements.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method and a device for uniformly thinning a large-scale irregular busbar-shaped surface shell. Background technique [0002] In the aerospace field, with the continuous improvement of the performance requirements of new products, the overall weight reduction, high structural rigidity and high-precision dimensional control requirements are becoming more and more stringent. It belongs to the key component and is the key structure for the successful operation of the entire system. A large aluminum alloy shell is formed by aluminum alloy plate, the inner and outer surfaces of the parts are ellipsoid, the inner surface is no longer processed, and the outer shape is thinned to ensure the overall thickness uniformity. Accuracy tolerance of wall thickness for each circumference in the direction of the spherical generatrix. The conventional process method of the s...

Claims

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Application Information

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Patent Type & Authority Patents(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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