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撥叉的CAD/CAPP設(shè)計(jì)及夾具PROE造型
摘要
我的畢業(yè)設(shè)計(jì)題目是撥叉的CAD/CAPP設(shè)計(jì)及夾具PROE造型，本次的畢業(yè)設(shè)計(jì)中我的論文分為三大部分：
第一部分主要是撥叉的工藝規(guī)程設(shè)計(jì)。其中包括采用CAD完成了零件圖，用PROE完成了毛坯圖的繪制。完成了撥叉的工藝規(guī)程設(shè)計(jì)，主要包括確定設(shè)計(jì)類型，確定毛坯制造形式，制定工藝路線，選擇機(jī)床及工藝設(shè)備，確定機(jī)械加工余量，工序尺寸和毛坯尺寸，以及切削用量和基本工時(shí)的確定。運(yùn)用CAPP軟件完成了撥叉的機(jī)械加工過(guò)程卡和工序卡。
第二部分主要是撥叉的夾具設(shè)計(jì)。在這一部分的內(nèi)容中，主要包括零件的定位基準(zhǔn)的選擇，定位機(jī)構(gòu)的設(shè)計(jì)，定位遠(yuǎn)見(jiàn)的尺寸的確定，定位誤差的分析。設(shè)計(jì)夾具主要完成了加緊機(jī)構(gòu)的設(shè)計(jì)，加緊力及夾緊機(jī)構(gòu)的設(shè)計(jì)，夾緊力及夾緊方向的確定，以及所選擇的夾緊元件。夾緊機(jī)構(gòu)主要是采用螺母和壓板的手動(dòng)壓緊，其定位和加緊機(jī)構(gòu)簡(jiǎn)單，方便可靠。
第三部分主要是采用Pro/engineer完成了撥叉的夾具造形。其中主要是詳述了撥叉零件的繪制過(guò)程。
關(guān)鍵詞：撥叉；Pro/engineer；CAPP
The CAD/CAPP Design Of Stir The Fork And Create Tongs Shape With Pro/Engineer
Abstract
The topic of my graduate design is the CAD/CAPP design of stir the fork and create tongs shape with Pro/engineer,in this graduate design, my graduate thesis primarily is divided into three big parts:
The first part is the craft rule design of stir the folk primarily. Among them including adopt the CAD completed the spare parts diagram, semi-finished product diagram draws. Completed to stir the craft rules distance of the folk design, primarily including make sure the production type, making sure the semi-finished product manufacturing form, establishing the craft route, choosing the machine bed and craft equipments, making sure the machine process remaining measures, work preface size with semi-finished product size and the size of slice the dosage, making sure the basic man-hour really. Applying CAPP software to complete the machine of the folk process and the process card with the work preface card.
The second part primarily is the design of tongs to stir the fork. In this part of contenses, including the fiducial choice in fixed position of the spare parts primarily ,the design of the fixed position of the organization ,fixed position and the analysis for the size of settling, positioning error margin. The tongs design including completed the clip design of the tight organization primarily, clip the tight dint and set up the direction to settl really, and choose of the clip tight of a piece. Clip the tight orgination primarily is to adopt the bolt and the knothole with press move to compress tights, the fixed position with clip the tight orgination simple, convenience and dependable.
The third part is the tongs to adopt Pro/engineer completing to stir the fork shape primarily. Among them primarily finished the process of drawing of the stir the fork in detail.
Key words: stir the fork; Pro/engineer; CAPP
目錄
摘要 I
Abstract II
第1章 緒論 6
第2章 零件的分析 7
2.1 撥叉的作用 7
2.2 撥叉的加工工藝過(guò)程分析 7
2.2.1 撥叉的分析 7
2.2.2 合理選擇定位基準(zhǔn) 7
2.2.3 表面加工法 7
2.2.4 加工順序安排 8
第3章 零件的工藝規(guī)程設(shè)計(jì) 9
3.1 確定零件生產(chǎn)類型 9
3.1.1 確定生產(chǎn)類型的依據(jù)——生產(chǎn)綱領(lǐng) 9
3.1.2 確定生產(chǎn)類型 9
3.2 確定毛坯的制造方式 9
3.3 制訂工藝路線 10
3.3.1 基準(zhǔn)的選擇 10
3.3.2 零件表面加工方法的選擇 11
3.3.3 熱處理的位置 12
3.3.4 零件的表面加工順序的劃分安排 12
3.3.5 工藝方案比較 13
3.4 機(jī)床及工藝裝備的選擇 14
3.4.1 機(jī)床的選擇 14
3.4.2 刀具的選擇 15
3.4.3 量具的選擇 15
3.5 機(jī)械加工余量 工序尺寸 及毛坯尺寸的確定 16
3.6 切削用量及其基本工時(shí)的確定 18
3.6.1 確定切削用量 18
3.6.2 工時(shí)定額的計(jì)算 19
第4章 CAPP簡(jiǎn)介 29
4.1 CAPP技術(shù) 29
4.2 CAPP系統(tǒng)的結(jié)構(gòu)組成 29
4.2.1 零件信息的獲取 29
4.2.2 工藝決策 29
4.2.3 工藝數(shù)據(jù)庫(kù)/知識(shí)庫(kù) 29
4.2.4 人機(jī)交互界面 30
4.2.5 工藝文件管理和輸出 30
第5章 夾具設(shè)計(jì) 31
5.1 問(wèn)題的提出 31
5.1.1 夾具設(shè)計(jì) 31
5.1.2 定位基準(zhǔn)的選擇 31
5.1.3 定位機(jī)構(gòu)的設(shè)計(jì) 31
5.1.4 定位元件的尺寸確定 31
5.1.5 定位誤差分析 32
5.2 夾緊機(jī)構(gòu)設(shè)計(jì) 32
5.2.1 夾緊力的確定 32
5.2.2 切削力及夾緊力的計(jì)算 33
5.2.3 夾具體的設(shè)計(jì) 33
第6章 Pro/ENGINEER 造型 35
6.1 Pro/ENGINEER簡(jiǎn)介 35
結(jié)論 36
致謝 37
參考文獻(xiàn) 38
附錄 39
第5頁(yè)