本文選題：產(chǎn)品族 + 超聲檢測(cè)附件��； 參考：《中北大學(xué)》2017年碩士論文

【摘要】：“超聲檢測(cè)”是無(wú)損檢測(cè)技術(shù)領(lǐng)域里主要的探測(cè)手段。隨著科學(xué)技術(shù)的快速發(fā)展,“超聲自動(dòng)檢測(cè)技術(shù)”成為超聲檢測(cè)技術(shù)發(fā)展的必然趨勢(shì)。超聲自動(dòng)檢測(cè)技術(shù)已經(jīng)在航空、航天、核電及高鐵等領(lǐng)域關(guān)鍵零部件的檢測(cè)中得到了較多的應(yīng)用,但是在普通零部件的檢測(cè)中應(yīng)用較少,其中檢測(cè)設(shè)備研發(fā)成本高、開(kāi)發(fā)周期長(zhǎng)、通用性差等一些問(wèn)題是限制超聲自動(dòng)檢測(cè)技術(shù)推廣與應(yīng)用的主要因素。針對(duì)這種情況,提出“車(chē)床超聲檢測(cè)附件”的概念,旨在通過(guò)產(chǎn)品族技術(shù)開(kāi)發(fā)一種適用于車(chē)床的超聲檢測(cè)附件,該附件安裝在車(chē)床上組成車(chē)床超聲自動(dòng)檢測(cè)系統(tǒng),以此代替超聲檢測(cè)裝置,從而降低超聲自動(dòng)檢測(cè)設(shè)備的開(kāi)發(fā)成本,縮短開(kāi)發(fā)周期,使其變得更具通用性。本文闡述了車(chē)床超聲檢測(cè)附件的概念和特點(diǎn),對(duì)整個(gè)附件組成結(jié)構(gòu)進(jìn)行了分析,基于產(chǎn)品族的理念將附件進(jìn)行了模塊化劃分,設(shè)計(jì)了車(chē)床超聲檢測(cè)附件產(chǎn)品平臺(tái),并分別針對(duì)超聲耦合模塊、控制系統(tǒng)模塊以及上位機(jī)模塊進(jìn)行了詳細(xì)的分析論證和實(shí)驗(yàn)驗(yàn)證。首先,通過(guò)對(duì)車(chē)床超聲檢測(cè)附件中的耦合技術(shù)進(jìn)行研究,提出了薄膜耦合法和水柱溢水法的概念,對(duì)耦合結(jié)構(gòu)進(jìn)行模塊化、參數(shù)化設(shè)計(jì),通過(guò)仿真求得耦合結(jié)構(gòu)的最佳參數(shù)并完成相應(yīng)零部件的加工制造,針對(duì)不同曲率的工件,在車(chē)床上進(jìn)行檢測(cè)實(shí)驗(yàn),結(jié)果表明薄膜耦合法適用于小曲率的工件,水柱溢水法適用于大曲率的工件。其次,通過(guò)對(duì)工業(yè)中常見(jiàn)控制系統(tǒng)進(jìn)行對(duì)比,選定單片機(jī)作為控制器,并對(duì)單片機(jī)的控制任務(wù)進(jìn)行了分析,完成了車(chē)床超聲檢測(cè)附件產(chǎn)品族控制系統(tǒng)的硬件和軟件的模塊化設(shè)計(jì),在車(chē)床上進(jìn)行了實(shí)驗(yàn),結(jié)果表明單片機(jī)控制器和車(chē)床數(shù)控系統(tǒng)的協(xié)同控制能夠取得比較好的效果。最后,根據(jù)是否將附件運(yùn)動(dòng)同車(chē)床運(yùn)動(dòng)一同編程,將NC代碼的識(shí)別提取劃分為時(shí)間同步法和直接提取法兩種方式,通過(guò)對(duì)NC代碼的組成格式和車(chē)削加工零件常見(jiàn)輪廓進(jìn)行分析,完成了車(chē)床超聲檢測(cè)附件數(shù)控代碼提取器的算法設(shè)計(jì)和NC代碼的模塊提取,并通過(guò)實(shí)例驗(yàn)證了方案的可行性。
[Abstract]:Ultrasonic testing is the main detection method in the field of nondestructive testing technology. With the rapid development of science and technology, automatic ultrasonic detection technology has become an inevitable trend. The ultrasonic automatic testing technology has been widely used in the detection of key parts in the fields of aviation, aerospace, nuclear power and high iron, but it is less used in the detection of ordinary parts, among which the cost of research and development of testing equipment is high. Some problems, such as long development period and poor generality, are the main factors restricting the popularization and application of ultrasonic automatic detection technology. In view of this situation, the concept of "lathe ultrasonic testing accessory" is put forward in order to develop a kind of ultrasonic testing accessory suitable for lathe through product family technology, which is installed on the lathe to form a lathe ultrasonic automatic testing system. In order to reduce the development cost, shorten the development cycle and make it more universal. This paper describes the concept and characteristics of lathe ultrasonic testing accessories, analyzes the structure of the whole accessories, divides the accessories into modules based on the concept of product family, and designs the product platform of lathe ultrasonic testing accessories. The ultrasonic coupling module, the control system module and the upper computer module are analyzed and verified in detail. First of all, by studying the coupling technology in the ultrasonic testing accessory of lathe, the concepts of membrane coupling method and water column overflow method are put forward, and the coupling structure is modularized and parameterized. The optimum parameters of the coupling structure are obtained by simulation and the machining and manufacturing of the corresponding parts are completed. The testing experiments are carried out on the lathe for the workpieces with different curvature. The results show that the film coupling method is suitable for the workpieces with small curvature. The water column overflow method is suitable for large curvature workpieces. Secondly, by comparing the common control systems in industry, the single-chip computer is selected as the controller, and the control task of the single-chip microcomputer is analyzed. The modularization design of hardware and software of the lathe ultrasonic testing accessory product family control system is completed, and the experiment is carried out on the lathe. The results show that the cooperative control between the single-chip microcomputer controller and the lathe numerical control system can achieve better results. Finally, according to whether the accessory motion and lathe motion are programmed together, the identification and extraction of NC code are divided into two ways: time synchronization method and direct extraction method. The composition format of NC code and the common contour of turning parts are analyzed. The algorithm design of numerical control code extractor for ultrasonic testing accessory of lathe and the module extraction of NC code are completed, and the feasibility of the scheme is verified by an example.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TG51

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