本文選題：缺陷檢測 + 篩選裝置��； 參考：《西南交通大學(xué)》2017年碩士論文

【摘要】：隨著制造技術(shù)的發(fā)展,自動化程度不斷提高,生產(chǎn)的產(chǎn)品種類也有很大的擴充,而傳統(tǒng)的缺陷檢測手段已經(jīng)遠遠不能滿足要求了,所以對檢測技術(shù)也提出了越來越高的要求,以適應(yīng)科技的進步,尤其是在精度、測量范圍、可靠性等方面。本文的研究課題來源于成都某大型制造廠的實際工程項目。由于設(shè)備生產(chǎn)誤差或者人員操作等問題,導(dǎo)致該廠所生產(chǎn)出來的鉚釘尺寸及規(guī)格不盡相同,而鉚釘?shù)娜毕莩潭纫约俺叽绲恼`差程度直接影響鉚接的質(zhì)量。本論文主要工作是根據(jù)該廠的迫切需求,設(shè)計一套全自動的檢測設(shè)備,并配合機器視覺系統(tǒng)進行圖像處理與檢測,按照該廠提出的個性化需求以及精度要求,完成多種類型工件的尺寸、缺陷檢測與分類,讓工人從重復(fù)性且低效率的工作中解脫出來,提高檢測效率,提升自動化水平。本論文先介紹了系統(tǒng)整體方案設(shè)計以及設(shè)備工作原理,然后從機械系統(tǒng)設(shè)計、硬件系統(tǒng)設(shè)計、控制軟件設(shè)計三大章節(jié)對整個設(shè)備進行了詳細介紹,具體工作內(nèi)容與結(jié)果如下所述:1、在機械設(shè)計方面,利用CREO軟件設(shè)計該設(shè)備的3維機械結(jié)構(gòu)圖,包括上料機構(gòu),檢測機構(gòu),和下料機構(gòu),并委托工廠加工制作。經(jīng)過多次修改、測試,設(shè)備運行穩(wěn)定;2、在硬件電路設(shè)計方面,對芯片進行選型,使用AltimumDesigner軟件設(shè)計硬件電路,包括電源模塊、微控制器模塊、IRF3205驅(qū)動電路模塊、溫度閉環(huán)控制電路。發(fā)送工廠制板,并進行焊接調(diào)試;3、控制軟件部分,采用C語言,在KEILuVision4MDK編譯軟件上編寫閉環(huán)控制程序,包括主程序、步進電機驅(qū)動程序、通信程序、定時中斷程序等各個功能子程序。本文設(shè)計并實現(xiàn)了一種用于工件尺寸與缺陷檢測的自動篩選裝置,為機器視覺系統(tǒng)提供了檢測平臺。通過與機器視覺系統(tǒng)進行聯(lián)合調(diào)試,該篩選裝置能夠完全滿足機器視覺系統(tǒng)對圖像獲取的要求,并完成篩選分類功能,其檢測速度達到50個/min,極大地提升了工件檢測的效率,具有切實的應(yīng)用價值。且該設(shè)備提供了一種檢測方案,對其他類型的工件檢測具有非常好的借鑒意義。
[Abstract]:With the development of manufacturing technology, the degree of automation has been improved, the variety of products produced has been greatly expanded, and the traditional defect detection method has been far from meeting the requirements, so the testing technology has been put forward more and more high requirements. In order to adapt to the progress of science and technology, especially in the accuracy, measurement range, reliability and so on. The research topic of this paper comes from the actual project of a large-scale manufacturing plant in Chengdu. The size and specifications of rivets produced in this factory are different due to the production error of equipment or personnel operation, and the defect degree and error degree of rivets directly affect the quality of riveting. The main work of this paper is to design a set of automatic testing equipment according to the urgent needs of the factory, and to carry out image processing and detection with the machine vision system, according to the requirements of individuation and precision proposed by the factory. Complete the size of various types of work, defect detection and classification, so that workers from the repetitive and inefficient work to free, improve the efficiency of detection, improve the level of automation. This paper first introduces the whole system scheme design and the working principle of the equipment, and then introduces the whole equipment in detail from three chapters: mechanical system design, hardware system design and control software design. In terms of mechanical design, using CREO software to design the 3D mechanical structure of the equipment, including feeding mechanism, testing mechanism, and discharging mechanism, and entrusting the factory to process and manufacture. After many modifications and tests, the equipment runs stably. In the aspect of hardware circuit design, the chip is selected, and the hardware circuit is designed by using AltimumDesigner software, including power supply module, microcontroller module IRF3205 driving circuit module, temperature closed-loop control circuit. Sending factory board, welding debugging, control software part, using C language, compile closed-loop control program on KEILuVision4MDK compiler software, including main program, step motor driver program, communication program, Timing interrupt program and other functional subroutines. This paper designs and implements an automatic screening device for the inspection of workpiece size and defect, which provides a testing platform for machine vision system. By joint debugging with the machine vision system, the screening device can fully meet the requirements of the machine vision system for image acquisition, and complete the function of screening and classification. The detection speed is up to 50 / min, which greatly improves the efficiency of the work piece detection. It has practical application value. And the equipment provides a detection scheme, which has a very good reference significance for other types of workpiece detection.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP391.41;TP273

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