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Manufacturing process and equipment for hypernormal-size conformal curved surface reflecting plate

A technology of curved surface reflection and manufacturing process, applied in other manufacturing equipment/tools, manufacturing tools, etc., can solve the problems of difficult to guarantee dimensional accuracy, difficult conformal reflector, long processing and manufacturing length, etc., achieving good versatility and saving. Material cost, weight reduction effect

Active Publication Date: 2022-04-29
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to solve the difficulty of processing and manufacturing conformal reflectors with long length and large curvature, the surface profile of reflectors and connectors, etc. The technical problem that the dimensional accuracy at the installation position is difficult to guarantee

Method used

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  • Manufacturing process and equipment for hypernormal-size conformal curved surface reflecting plate
  • Manufacturing process and equipment for hypernormal-size conformal curved surface reflecting plate
  • Manufacturing process and equipment for hypernormal-size conformal curved surface reflecting plate

Examples

Experimental program
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Effect test

Embodiment 1

[0069] Such as figure 1 As shown, 7050 high-strength aluminum plate is used as the raw material for segmental reflector processing, and margins are reserved on both sides of the part as clamping tooling and positioning references. After low-temperature heat treatment, five-axis CNC rough and fine machining, and aging stress release, the part is completed make.

[0070] Such as Figure 1 to Figure 6 As shown, the front reflector 1, the front reflector connection mounting hole 11, the front reflector connection positioning hole 12, the rear reflector 2, the rear reflector connection installation hole 21, the rear reflector connection positioning hole 22, conformal Assembly tooling 3, tooling bottom plate 31, tooling equidistant vertical ribs 32, vertical rib fixed diagonal braces 33, reflective surface positioning pins 34, conformal tooling compression rods 35, compression beams 351, compression connecting rods 352, compression rods Handle 353, PTFE compression head 354, compr...

Embodiment 2

[0079] Such as Figure 7 As shown, a manufacturing process of a conformal curved reflector with a super-conventional size can be processed, including a conformal reflector for an unmanned aerial vehicle body. The process includes:

[0080] S1. After performing segmental CNC machining on the conformal reflector, it is realized by using conformal tooling for integral riveting connection;

[0081]S2. Combining with pre-stretched 7-series aviation aluminum specifications, the conformal reflector is designed and segmented. The segmented reflector adopts five-axis CNC machining with the machining allowance around the raw material as the clamping tire mold, and removes the margin of the main raw material. Rough machining and finishing to ensure the accuracy of the reflector, and according to the characteristics of the 7-series aluminum material, natural aging is used to eliminate the processing stress and other processes to ensure the dimensional accuracy of the segmented reflector; ...

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Abstract

The invention provides a manufacturing process and equipment for a hyperconventional-size conformal curved surface reflecting plate. The manufacturing process comprises the following steps of: performing segmented numerical control processing on the conformal reflecting plate, and integrally riveting the conformal reflecting plate by using a conformal tool; designing segmented reflecting plates of the conformal reflecting plate according to the specification data of the pre-stretched material, and processing the conformal reflecting plate in a segmented manner by using five-axis numerical control processing, rough and fine processing and natural aging processes to obtain segmented reflecting plates; using a conformal assembly tool conformal with the conformal reflecting plate to rivet the segmented part of the segmented reflecting plate so as to assemble the conformal reflecting plate; carrying out low-temperature destressing by utilizing a preset temperature condition and an aging condition so as to eliminate the assembly stress of the conformal reflecting plate; and the surface profile tolerance and the dimensional accuracy of the conformal reflecting plate are monitored by using a three-coordinate detection and photogrammetry method. The technical problem that processing of a large-curvature-feature conformal reflecting plate, the profile tolerance of the reflecting plate, the size precision control of installation positions such as a connector and the like are large in difficulty is solved.

Description

technical field [0001] The invention relates to a process of numerically controlled processing and riveting of a conformal curved metal panel of an unmanned aerial vehicle, in particular to a process and equipment for manufacturing a conformal curved reflector of an unconventional size. Background technique [0002] As a kind of aircraft that is being gradually promoted, UAV has unique advantages such as reducing personnel input, not being limited by the physiological conditions of the driver, and the weight of the carrier itself is small. Endurance, as the core performance index of a UAV, is mainly determined by the aerodynamic shape of the fuselage, aircraft power and load weight. As the weight reduction requirements for electronic equipment loads become more and more stringent, airframe conformal structure has gradually developed into a practical method. With the development of UAV-borne radar, the weight reduction of radar systems mainly includes structural design optim...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23P23/00
CPCB23P15/00B23P23/00
Inventor 陈路加赵丹杨竣博殷东平左防震李沙沙张杨鲁斌孙大智张冠群武建锋
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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