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目錄
摘 要 I
ABSTRACT II
第1章 緒論 1
1.1機械手的簡介 1
1.2機械手的簡史.................................................................................................2
1.3機械手的組成................................................................................................4
1.3.1執(zhí)行機構...............................................................................................4
1.3.2驅動機構...............................................................................................6
1.3.3控制系統(tǒng)及其分類...............................................................................6
1.4機械手的發(fā)展趨勢........................................................................................6
1.5機械手的自由度和座標型式........................................................................8
1.5.1機械手的自由度...................................................................................8
1.5.2座標型式...............................................................................................8
1.6機械手的展望.............................................................................................,10
1.7本章小結......................................................................................................11
第2章 焊接機械手的總體設計方案.....................................................................13
2.1方案設計......................................................................................................13
2.1.1方案要求.............................................................................................13
2.1.2設計方案的確定.................................................................................14
2.2傳動結構設計與分析..................................................................................16
2.2.1 腰部傳動機構....................................................................................16
2.2.2 大臂傳動機構....................................................................................17
2.2.3 小臂和焊槍夾具傳動機構................................................................18
2.3 執(zhí)行機構的設計與分析.............................................................................19
2.3.1 腰部....................................................................................................19
2.3.2 大臂....................................................................................................21
2.3.3 小臂......................................................................................................21
2.4 整體設計方案示意圖..................................................................................22
2.5本章小結.......................................................................................................23
第3章 機械手的建模.............................................................................................25
3.1三維建模軟件Solidworks的介紹..............................................................25
3.2 Solidworks建模..........................................................................................26
3.3本章小結......................................................................................................27
第4章 機械手二維制圖.........................................................................................29
4.1 二維繪圖軟件AutoCAD的介紹..............................................................29
4.2 AutoCAD繪圖.........................................................................................29
4.3本章小結......................................................................................................32
第5章 Adams仿真和Ansys分析..........................................................................33
5.1 運用Adams對機械手進行仿真模擬.......................................................33
5.1.1 Adams軟件介紹.............................................................................33
5.1.2 仿真前的準備工作—造型............................................................34
5.1.3 Adams仿真步驟.............................................................................34
5.2 對主要承載構件進行有限元分析...........................................................41
5.2.1 主要承載構件材料及特性............................................................41
5.2.2 底座的有限元分析........................................................................42
5.3 本章小結...................................................................................................44
參考文獻................................................................................................................45
致謝........................................................................................................................47
譯文和原文.............................................................................................................49
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摘 要
由于焊接工作的需要，人們經(jīng)常遭受腐蝕、高溫及有毒氣體等因素的危害，不僅工人的勞動強度大，而且危及生命，因此焊接機械手孕育而生。它代替焊工自動化完成各種焊接任務，一方面使工人的勞動條件得到改善，另一方面，焊接機械手焊接質量穩(wěn)定且大大提高勞動生產(chǎn)率。所以焊接機械手的應用及發(fā)展前景巨大。
本文從以下五個部分闡述此次設計的內容：
（1）了解機械手的概念、簡史、現(xiàn)狀和未來發(fā)展，明確設計機械手的實際意義，掌握機械手的基本組成，為設計焊接機械手做好相應的準備工作。
（2）對焊接機械手進行總體方案設計，包括自由度的確定、驅動機構即電機的選擇、傳動形式的確定、執(zhí)行機構的設計等。
（3）運用solidworks軟件對焊接機械手進行三維實體建模，全部零件建模后虛擬裝配。
（4）基于solidworks軟件“導入工程圖”功能，在AutoCAD軟件中中完成對典型零件和總裝配體的二維圖繪制。
（5）在ADAMS軟件中對簡化的機械手模型進行運動仿真，并在solidworks中完成對主要承載構件的有限元分析。
（6）完成20000字符以上的相關英文資料翻譯。
關鍵詞：四自由度焊接機械手；結構設計；三維建模；運動仿真；有限元分析
ABSTRACT
To do soldering work, people often suffer corrosion, high tempreture ，poisonous gas and some other damages. Labors have to bear high intensity work and it is dangerous for their lives. That is the reason for generation of welding manipulator.The welding manipulator can finish welding missions automatically. On the one hand,it improves labors' working environment. On the other hand, it also keeps a high quality of welding and promotes effeciency. So There is a good development prospect for the welding manipulator.
This thesis consists of five chapters to state the design:
(1) Introduce welding manipulator's definition, general history, current situation and development prospect. Confirm the pratical purpose of designing welding manipulators .Understand its basic parts. Prepare for the design.
(2) Take a general design for the welding manipulator, including freedom level, driving machanism, type of belt drive, actuator and so on.
(3) Build a solid model of welding manipulator by solidworks. Make a virtual assembly after building all elements' model
(4) Based on solidworks software "import engineering drawing " function, done in AutoCAD software for typical parts and assembly of 2 d graph.
(5) In the ADAMS software to motion simulation for a simplified mechanical model in solidworks and complete finite element analysis of the main bearing components.
(6) Complete translating English materrial which is more than 20000 words.
Keywords: Four degrees of freedom of welding manipulator; Structure design; 3 d
modeling; Motion simulation; The finite element analysis
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