摘 要

本文主要是對汽車齒輪套進(jìn)行焊接工裝夾具設(shè)計和焊接工藝設(shè)計。而正確地設(shè)計、選用各種工裝夾具，可以縮短裝配、焊接時間，減少工人的勞動強(qiáng)度，提高勞動生產(chǎn)率，保證產(chǎn)品的裝配精度和焊接質(zhì)量，還可以充分發(fā)揮焊接設(shè)備的潛力，擴(kuò)大其使用范圍，并有利于實現(xiàn)焊接作業(yè)的綜合機(jī)械化和自動化。焊接夾具是焊接工藝能否順利、正確執(zhí)行的保證，而工藝過程是否合理也影響夾具的設(shè)計和使用效果。所以兼顧工裝夾具和焊接工藝，設(shè)計出合理的夾具及工藝，是很重要的。
隨著焊接技術(shù)的發(fā)展，以及計算機(jī)技術(shù)的發(fā)展，尤其是焊接技術(shù)與計算機(jī)技術(shù)的緊密結(jié)合，顯示了未來在工裝夾具的設(shè)計上計算機(jī)技術(shù)的重要性。本文研究的重點(diǎn)是在CAD、UG軟件下設(shè)計焊接工裝夾具，通過不斷的改進(jìn)優(yōu)化其結(jié)構(gòu)，最終完成焊接工裝夾具設(shè)計及自動焊接方案設(shè)計。
本文對工裝夾具的作用，分類及其特點(diǎn)做了詳細(xì)的歸類和總結(jié)。由于涉及到計算機(jī)技術(shù)的應(yīng)用，所以也部分介紹了UG軟件的發(fā)展、主要技術(shù)特點(diǎn)、組成模塊以及其實際常用的UG NX。結(jié)合實際生產(chǎn)要求，本文還完成了焊接工藝設(shè)計，選擇合理的規(guī)范參數(shù)，以保證焊接質(zhì)量滿足要求。


關(guān)鍵詞：汽車齒輪套焊接，焊接工裝夾具，焊接工藝，UG









ABSTRACT

This paper mainly presents fixture design and welding technology design of automobile gear sets welding. Proper design and selection of various fixture can not only shorten the assembly and welding time, reduce labor intensity of workers, raising labor productivity, and ensure accuracy of product assembly and welding quality, but also can give full play to the potential of welding equipment, expand the scope of its application, and will be conducive to the realization of the comprehensive mechanization and automation. Welding fixture is the guarantee of the smooth and correct implementation of welding process. Moreover, the process whether it is reasonable also affects the design and effect of the use of fixture. So in the view of fixture and welding technology, it is very important to design a reasonable fixture and welding technology.
With the development of welding technology and computer technology, in particular welding technology and computer technology closely integrated shows the importance of computer technology in the design of fixture in the future. The focus of this paper is on using CAD and UG software to design the welding fixture, optimizing its structure through continuous improvement, completing welding fixture design and automatic welding programme design.
In this paper, the role of fixture, and its classification and characteristics are classified and summarized in detail. As related to the application of computer technology, the development of UG software, the main characteristics, the modules and its practical common UG NX are described in this paper. With the actual production requirements, the paper has also completed welding process design and selected reasonable parameters to ensure welding quality to meet the specified requirements.


Key words: automobile gear sets welding, welding fixture, welding technology, UG
目 錄

摘 要 I
ABSTRACT II
1 緒論 1
1.1焊接工裝夾具的概念 1
1.1.1 概念 1
1.1.2 汽車焊接中工裝夾具的發(fā)展、發(fā)展趨勢及作用 1
1.2 焊接工裝夾具的作用 2
1.2.1 保證和提高產(chǎn)品質(zhì)量 2
1.2.2 提高勞動生產(chǎn)率，降低制造成本 2
1.2.3 減輕勞動強(qiáng)度，保障安全生產(chǎn) 3
1.3 焊接工裝的分類 3
1.3.1 按用途分類 3
1.3.2 按應(yīng)用范圍分類 3
1.3.3 按動力源分類 4
1.3.4 按焊接方法分類 4
1.4 焊接工裝的特點(diǎn) 4
1.5 焊接的概念和意義以及我國焊接生產(chǎn)的現(xiàn)狀 5
1.6 我國發(fā)展焊接技術(shù)的幾點(diǎn)主要措施 5
1.6.1 加強(qiáng)新型焊接設(shè)備的研究開發(fā)力度 5
1.6.2 加強(qiáng)新的焊接共性技術(shù)的研究與開發(fā) 6
1.6.3 用計算機(jī)改造焊接傳統(tǒng)產(chǎn)業(yè) 6
1.7 研究的內(nèi)容、目的和意義 7
2 UG軟件介紹 9
2.1 UG軟件概述 9
2.2 UG的主要技術(shù)特點(diǎn) 9
2.3 UG軟件的組成模塊 10
2.4 用于三維建模的UG NX 11
3 焊接工裝夾具設(shè)計 13
3.1 引言 13
3.2 夾具設(shè)計任務(wù) 13
3.2.1 焊接產(chǎn)品圖分析 13
3.2.2 焊接產(chǎn)品“齒輪套”的重點(diǎn)技術(shù)要求分析 15
3.3 “齒輪套”裝焊夾具設(shè)計方案的確定 15
3.3.1 裝焊方案 15
3.3.2 裝焊夾具結(jié)構(gòu) 22
3.3.3 夾具定位原理與特點(diǎn) 24
3.3.4 主要零件設(shè)計說明 24
3.3.5 夾具裝配要求 27
3.4 裝焊夾具使用說明 28
3.4.1 夾具的操作步驟 28
3.4.2 夾具使用注意事項、保養(yǎng)以及維護(hù) 28
4 汽車齒輪套自動焊接工藝設(shè)計 29
4.1 引言 29
4.2 焊接產(chǎn)品 29
4.3 焊接要求 29
4.4 焊接方案 29
4.4.1 焊前準(zhǔn)備 29
4.4.2 工藝參數(shù)的制定 30
4.4.3 焊接 30
4.4.4 焊后清理與檢測 30
4.4.5 操作注意問題 30
5 結(jié)論 31
參考文獻(xiàn) 32