【正文】
性,把零件分成若干組,在每一組零件中選出一個(gè)代表性零件(可以是實(shí)際存在的,也可是假想的,但須包括組內(nèi)所有零件的加工要素),根據(jù)這個(gè)代表零件制定出典型的工藝規(guī)程,選定和設(shè)計(jì)一組機(jī)床及工藝設(shè)備,并把它們組成一個(gè)專門的工段或車間。第四,工藝數(shù)據(jù)管理能力不足,僅僅是一個(gè)填寫工藝卡片的工具,而不是工藝數(shù)據(jù)平臺(tái)。(2)縮短設(shè)計(jì)周期,保證設(shè)計(jì)質(zhì)量,提高產(chǎn)品的市場(chǎng)競(jìng)爭(zhēng)能力。在零件族內(nèi)先找出一個(gè)結(jié)構(gòu)最復(fù)雜、工藝路線最長的零件作為代表,然后將族內(nèi)其他零件中有代表性而沒有工序的也加入進(jìn)去,從而獲得一條滿足全族零件加工要求的復(fù)合工藝路線。 指導(dǎo)教師評(píng)語:此譯文簡(jiǎn)單介紹了編制機(jī)械制造工藝規(guī)程中幾種先進(jìn)技術(shù)的綜合應(yīng)用。它是從設(shè)計(jì)到產(chǎn)品的橋梁,在機(jī)械制造工作中占有重要地位。2 計(jì)算機(jī)輔助工藝設(shè)計(jì)的目標(biāo)與范圍 CAPP在我國的應(yīng)用現(xiàn)狀計(jì)算機(jī)輔助工藝設(shè)計(jì)作為連接CAD與CAM的橋梁,也是許多先進(jìn)制造系統(tǒng)的技術(shù)基礎(chǔ)之一。 CAPP計(jì)算機(jī)輔助工藝設(shè)計(jì)的目標(biāo)與范圍根據(jù)以上分析CAPP的開發(fā)應(yīng)用既要適合我國目前的國情,也要考慮發(fā)展的需要,絕不能顧此失彼,更重要的是要為系統(tǒng)的集成起好橋梁作用,防止不必要的返工,為此應(yīng)該做到以下幾點(diǎn):(1)工藝設(shè)計(jì)是指導(dǎo)企業(yè)經(jīng)營的基礎(chǔ)信息,要使企業(yè)生產(chǎn)經(jīng)營優(yōu)化,必須首先優(yōu)化工藝信息,所以CAPP必須提供企業(yè)生產(chǎn)經(jīng)營的優(yōu)化、規(guī)范、標(biāo)準(zhǔn)的工藝信息,為企業(yè)生產(chǎn)、經(jīng)營優(yōu)化運(yùn)行打下基礎(chǔ)。According to production organize ponents into groups, we accord the parts of the structural characteristics, process characteristics and processing equipment characteristics to group, classification and code for each of the ponents, and then establish the typical ponents of each type of library and the processing technology of group library. 制定零件成組加工工藝的方法有兩種: 1) 虛擬零件法。s first a CAPP system AUTOPROS。(MRPII/ERP)的重要紐帶,對(duì)組織生產(chǎn),保證產(chǎn)品質(zhì)量,提高勞動(dòng)生產(chǎn)率,縮短生產(chǎn)周期等產(chǎn)生了越來越直接的影響。 modity systems are few and insufficiency。 So, the CAPP will be a unified software development, and it platforms for the future development trend. 產(chǎn)品數(shù)據(jù)管理PDM(Product Data Management)技術(shù)作為一門新興的技術(shù),它的出現(xiàn)為人們打開了新的思路。 According to CAPP development and application of the above analysis, it not only is necessary to fit China39。 From the application point of view, it has been made of the actual benefits and do not mensurate with the strength of inputs: the focus of research at home and abroad and present a far cry from the actual demand. 表現(xiàn)在:開發(fā)多,應(yīng)用少;開發(fā)投入多,應(yīng)用維護(hù)幾乎無投入;原型系統(tǒng)多,得到實(shí)際生產(chǎn)應(yīng)用的系統(tǒng)較少;商品系統(tǒng)很少,而且功能不足;同CAD、CAN、MIS(Management Information System,管理信息系統(tǒng))、PDM等相關(guān)計(jì)算機(jī)輔助技術(shù)相比,差距相當(dāng)大。 CAPP development and research was begun from the last century began in the late sixties. In the field of manufacturing automation, CAPP39。 How to further improve (or an organic integration) used by the applications, and how to solve using a single application of the system functions when inpatibility issues, these will bee the focus of attention of many to use ,簡(jiǎn)要介紹和分析目前應(yīng)用的幾種先進(jìn)技術(shù)的基本方法及其綜合應(yīng)用,并討論使計(jì)算機(jī)輔助工藝設(shè)計(jì)與CAPP軟件的開發(fā)平臺(tái)趨向統(tǒng)一的發(fā)展方向。第三,對(duì)CAPP的實(shí)用性、易用性重視不夠,很多CAPP系統(tǒng)采用純粹的字處理方式填寫卡片,或是簡(jiǎn)單的數(shù)據(jù)庫界面,做不到“所見及所得”,不符合工藝人員的工作習(xí)慣,達(dá)不到提高效率的目的。用CAPP代替?zhèn)鹘y(tǒng)的工藝設(shè)計(jì)已成為必然,它對(duì)機(jī)械制造業(yè)的重要意義表現(xiàn)在下列幾點(diǎn):(l)解放出原有設(shè)計(jì)人員,進(jìn)行新產(chǎn)品、新工藝和新技術(shù)的開發(fā)。2) 復(fù)合工藝路線法。翻譯用詞比較準(zhǔn)確,文筆也較為通順,為在以后工作中接觸英文資料打下了基礎(chǔ)。它因時(shí)間、場(chǎng)合、條件等多方面因素的改變而改變。CAPP技術(shù)從它誕生以來,其研究開發(fā)工作一直在國內(nèi)外蓬勃發(fā)展,而且逐漸引起越來越多的人們的重視。(2)目前我國95%的企業(yè)使用的還是普通機(jī)床,CAPP的開發(fā)必須輸出目前企業(yè)人工閱讀的工藝規(guī)程、工序卡片或操作卡片,以及有關(guān)的工藝文件。 Processing technology to develop parts in groups of two ways: 1) The virtual part method. 在一個(gè)零件組中,先設(shè)計(jì)一個(gè)能夠包含這組零件全部幾何特征的虛擬零件,要求其擁有這個(gè)加工族中全部零件需要加工的表面,然后按這個(gè)虛擬零件進(jìn)行工藝設(shè)計(jì),即為該組零件的成組工藝。 in 1973, Norway officially launched the mercialization of AUTO PROS system. In the CAPP history在CA PP發(fā)展史上具有里程碑意義的是CAMI于1976年推出的CAMI39。 With the level of machine production technology development and market demanding, Computer Aided Process Planning (CAPP) as the bridge of connectivity product design (CAD) and manufacturing (CAM) links product design and production management (MRPII / ERP), and organize production and ensure product quality, improve labor productivity, shorten production cycles resulted in more and more direct impact. 用CAPP代替?zhèn)鹘y(tǒng)的工藝設(shè)計(jì)已成為必然,它對(duì)機(jī)械制造業(yè)的重要意義表現(xiàn)在下列幾點(diǎn):(l)解放出原有設(shè)計(jì)人員,進(jìn)行新產(chǎn)品、新工藝和新技術(shù)的開發(fā)。 with CAD, CAN, MIS (Management Information System, Management Information Systems), PDM and other related puteraided technique pared to the gap is quite big. 其原因主要表現(xiàn)在:[2]首先,CAPP研究與開發(fā)的目標(biāo)具有很大的片面性,即過于追求工藝過程的自動(dòng)化生成。 Product Data Management PDM (Product Data Management) technology as an emerging technology, it appears for people to open a new way of thinking. With PDM system as the integration framework, the existing traditional applications such as Auto CAD and CAPP organic integration, when CAD、 CAPP system will bee an integral part for product development of the general ,并為產(chǎn)品的結(jié)構(gòu)設(shè)計(jì)到工藝設(shè)計(jì)提供了統(tǒng)一的編碼標(biāo)準(zhǔn);因而使信息流動(dòng)更加通暢,保證了數(shù)據(jù)的統(tǒng)一和共享。 Fillstyle craft card software can not meet that these very important process data management. CAPP計(jì)算機(jī)輔助工藝設(shè)計(jì)的目標(biāo)與范圍 CAPP Computer Aided Process Design Objectives and Scope 根據(jù)以上分析CAPP的開發(fā)應(yīng)用既要適合我國目前的國情,也要考慮發(fā)展的需要,絕不能顧此失彼,更重要的是要為系統(tǒng)的集成起好橋梁作用,防止不必要的返工,為此應(yīng)該做到以下幾點(diǎn):(1)工藝設(shè)計(jì)是指導(dǎo)企業(yè)經(jīng)營的基礎(chǔ)信息,要使企業(yè)生產(chǎn)經(jīng)營優(yōu)化,必須首先優(yōu)化工藝信息,所以CAPP必須提供企業(yè)生產(chǎn)經(jīng)營的優(yōu)化、規(guī)范、標(biāo)準(zhǔn)的工藝信息,為企業(yè)生產(chǎn)、經(jīng)營優(yōu)化運(yùn)行打下基礎(chǔ)。 But, C