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CAD/CAM技術(shù)在摩托車護(hù)片鍛模設(shè)計(jì)中的應(yīng)用
學(xué)生姓名: 呂江偉 班級(jí): 0781052
指導(dǎo)老師: 姚坤弟
摘要：曲面類零件在制造業(yè)中處處可見，尤其是模具制造業(yè)。傳統(tǒng)的設(shè)計(jì)制造方法是工程圖、模線、樣板、標(biāo)準(zhǔn)樣件等工作方式，生產(chǎn)準(zhǔn)備的周期長(zhǎng)，制造精度低，生產(chǎn)效率也是低下。隨著計(jì)算機(jī)技術(shù)在模具制造業(yè)中應(yīng)用的不斷發(fā)展，數(shù)控加工能力得到了大大提高，模具的設(shè)計(jì)與制造技術(shù)達(dá)到了空前的發(fā)展。模具CAD/CAM技術(shù)已成為模具行業(yè)革命化的標(biāo)志。適應(yīng)CAD/CAM技術(shù)的發(fā)展，改變傳統(tǒng)的設(shè)計(jì)與制造方法是模具制造業(yè)的發(fā)展的方向.
本設(shè)計(jì)是CAD/CAM技術(shù)在鍛模曲面加工中的應(yīng)用。包括兩大部分：一是摩托車護(hù)片模具的設(shè)計(jì)；二是模具型面的造型與數(shù)控仿真加工。在Mastercam 8.0環(huán)境下利用CAD功能進(jìn)行摩托車護(hù)片模具的實(shí)體造型，利用CAM功能進(jìn)行模具刀具路徑的編制、模擬加工，并通過后處理生成NC程序。期望通過此課題的研究，能夠提高自己對(duì)CAD/CAM技術(shù)在模具制造業(yè)中應(yīng)用的重要性的認(rèn)識(shí)。
關(guān)鍵詞： CAD/CAM技術(shù) 實(shí)體造型 仿真加工
指導(dǎo)老師簽名：
Application of the CAD/CAM technology in Motorcycle Jacket’s Forging Mould Designing
Student name :Lv Jiangwei Class : 0781052
Supervisor : Yao Kundi
Abstract： It is well known that surface parts can be seen everywhere in the manufacturing , especially in the mould manufacturing . The traditional design and manufacturing processes are the engineering drafting , lofting , template making , standard samples , etc. , which have the shortages of long production preparation period , low processing accuracy and production efficiency . With the developing of the computer technique’ application in the mould manufacturing , NC machining capability has been enhanced greatly ,and, the design and manufacturing technique of the mould has obtained enormous progress at the same time . The CAD/CAM technique has become the revolutionary sign in the mould industry . To be suitable for the tendency of CAD/CAM technique’ development and meet the requirement to change the traditional design /manufacturing modes are the developing direction of the mould industry .
This project is about the application of the CAD/CAM technique in the wrought mould surface processing . It contains two parts : one is about the mould design of the motorcycle jacket and the other is about the numerical control simulate process of the mould surface . Under the environment of Mastercam 8.0 , I will sculpt the mould of the motorcycle jacket using the CAD function , and then , I will weave the tool route , simulate processing and create the NC programme via the back disposing using the CAM function . And at last , I hope I can improve my cognition to the significance of the CAD/CAM technique’ application in the mould industry by the study of the task .
Keyword: CAD/CAM technique sculpt simulate processing
signature of Supervisor:
目 錄
1 序言
1.1課題研究的目的及意義 (1)
1.1.1 模具CAD/CAM的研究目的 (1)
1.1.2 模具CAD/CAM的研究意義 (1)
1.2 國(guó)內(nèi)外研究現(xiàn)狀 (1)
1.3 本課題研究?jī)?nèi)容 (2)
2 摩托車護(hù)片模具的設(shè)計(jì)
2.1零件結(jié)構(gòu)和工藝分析 (3)
2.1.1 零件結(jié)構(gòu)分析 (3)
2.1.2 零件工藝分析 (3)
2.1.3 鍛模設(shè)計(jì)方案的確定 (4)
2.2 鍛件圖的設(shè)計(jì)和繪制 (5)
2.2.1 確定鍛件的分模面 (5)
2.2.2 確定鍛件的機(jī)械加工余量及鍛件公差 (6)
2.2.2.1 加工余量的確定 (6)
2.2.2.1.1估算鍛件質(zhì)量 (6)
2.2.2.1.2 加工精度 (6)
2.2.2.1.3 計(jì)算鍛件的形狀復(fù)雜系數(shù)S (7)
2.2.2.1.4 模鍛件的加工余量的構(gòu)成 (7)
2.2.2.2 模鍛件公差的確定 (8)
2.2.2.2.1 材質(zhì)系數(shù)M (8)
2.2.3 確定模鍛斜度 (8)
2.2.4 確定模鍛件的圓角半經(jīng) (9)
2.2.5 沖孔連皮設(shè)計(jì) (10)
2.2.6 繪制鍛件圖的技術(shù)條件 (10)
2.3 終鍛模膛設(shè)計(jì) (11)
2.3.1 熱鍛件圖 (11)
2.3.1.1 收縮率 (11)
2.3.1.2 繪制熱鍛件圖 (12)
2.3.2 確定模鍛設(shè)備噸 (13)
2.3.2.1 熱模鍛曲柄壓力機(jī)模鍛工藝特點(diǎn) (13)
2.3.2.2 計(jì)算鍛件的主要參數(shù) (13)
2.3.2.3 曲柄壓力機(jī)噸位選擇 (13)
2.3.2.4 飛邊槽的設(shè)計(jì) (14)
2.3.2.4.1 飛邊槽的選擇 (14)
2.3.2.4.2 飛邊槽的尺寸的確定 (15)
2.4 確定坯料的尺寸 (16)
2.4.1 確定制坯工步 (16)
2.4.2 確定毛坯尺寸 (17)
2.5 機(jī)鍛模結(jié)構(gòu)設(shè)計(jì) (18)
2.5.1 模架結(jié)構(gòu)型式 (18)
2.5.2 模架設(shè)計(jì) (18)
2.5.3 鍛?？傮w結(jié)構(gòu) (19)
2.5.4 機(jī)鍛模的閉合高度 (20)
2.5.5 鑲塊設(shè)計(jì) (20)
2.5.5.1 鑲塊水平方向的尺寸 (20)
2.5.5.2 鑲塊的高度尺寸 (21)
2.5.5.3 數(shù)據(jù)核算 (21)
2.5.6 頂料裝置設(shè)計(jì) (22)
2.5.7 導(dǎo)向裝置設(shè)計(jì) (22)
2.5.8 鍛模材料的選用和壽命 (24)
2.6 鍛模圖的繪制 (24)
3 模具曲面造型與數(shù)控仿真加工
3.1 概述 (24)
3.2 Mastercam軟件介紹 (25)
3.3 上鑲塊模仿真 (26)
3.3.1 曲面造型 (26)
3.3.2 數(shù)控仿真加工 (31)
3.4 下鑲塊模仿真 (42)
3.4.1 曲面造型 (43)
3.4.2 下鑲塊模的數(shù)控仿真加工 (43)
結(jié) 論 (46)
參考文獻(xiàn) (47)
致 謝 (48)