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Milling cutting method of large melon petal shaped aluminum alloy component

An aluminum alloy and component technology, which is applied in the field of allowance milling of large thin-walled components, can solve problems such as troublesome operation, and achieve the effects of precise product, saving manufacturing cost and time cost, and high one-time pass rate

Active Publication Date: 2018-09-28
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device is quite cumbersome to operate, and milling machines up to three or four meters are rare

Method used

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  • Milling cutting method of large melon petal shaped aluminum alloy component
  • Milling cutting method of large melon petal shaped aluminum alloy component
  • Milling cutting method of large melon petal shaped aluminum alloy component

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Experimental program
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Effect test

Embodiment Construction

[0032] The present invention firstly provides a kind of large-scale thin-walled component surface accuracy detection and margin milling composite tooling (composite device), such as figure 1 As shown, its basic features include that the tooling has the function of detecting the surface accuracy of thin-walled components and the function of milling the surrounding allowance; The tooling described before the accuracy test is mainly composed of a clamping plate 1, a narrow panel 2 around, a knife groove 22 arranged on the panel 2 around the narrow panel 2, a theoretical line 21, and a pressure bearing plate 3, such as figure 1 . The horizontal and vertical clamps are made of 10mm thick steel plates. In order to achieve weight reduction and ensure sufficient strength and rigidity, holes are opened in the middle of the clamps. Weld a 75mm×18mm (width×thickness) narrow profile around the top surface of the integral frame tooling, such as figure 2 , where the theoretical profile i...

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Abstract

The invention provides a milling cutting method of a large petal shaped aluminum alloy component. The method involves a milling cutting device. The method comprises the steps of 1, clamping the melonpetal shaped component with supporting of a C-shaped clamp and fixing through bolts, namely, fixing the wide end of the component firstly; secondarily fixing the left side edge and the right side edge, close to a line in the length direction of the wide end, of the component; thirdly fixing the left side edge and the right side edge, close to a line in the length direction of a narrow edge, of thecomponent; and fixing the melon petal shaped component to a bearing plate of the device; and 2, etching a product theory line on the melon petal through a milling cutter; then performing allowance milling and cutting on the melon petal shaped component based on a milling and cutting track line under the reference which is the product theory line through the milling cutter, wherein the milling andcutting track line bypasses each bolt to form a bolt fixing lug; and then milling and cutting the bolt fixing lugs. According to the method, the melon petal shaped component milling cutting method corresponding to the device is simple to operate; the product accuracy is high; and the first pass yield is high.

Description

technical field [0001] The patent of the invention relates to the field of allowance milling of large thin-walled components, in particular to a device and method for allowance milling of complex thin-walled components for aerospace. Background technique [0002] The preparation steps of aluminum alloy bending components usually include steps such as forming, precision testing, milling and welding. Among them, forming refers to forming a bent member by adopting vacuum aging hot bending and the like on the flat aluminum alloy. Accuracy detection is mainly to detect whether the accuracy (such as curvature) of the formed component surface is consistent with the theoretical product. Milling is to reduce the size of the component by cutting off the excess amount around the component. Welding means that the component is butt-welded with other components of the same or different shapes, for example, six or eight identical components are butt-welded together to form a large compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00B23Q3/06
CPCB23C3/00B23Q3/06
Inventor 湛利华杨有良胡正根常志龙刘德博阮小鹏刘观日黄诚万李
Owner CENT SOUTH UNIV
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