吸塵器蓋注塑模具設(shè)計與數(shù)控編程

材料成型及控制工程論文，論文編號:JX1370  論文字?jǐn)?shù):20456.頁數(shù):45

摘   要

 注射成型是熱塑性塑料成型的主要方法之一，可以一次成型形狀復(fù)雜的精密塑件。塑料模具設(shè)計和制造也顯得尤為重要。本設(shè)計進(jìn)行了吸塵器蓋注塑模設(shè)計，然后利用UG NX 4的MOLDWIZARD模塊功能結(jié)合產(chǎn)品的特性進(jìn)行模具結(jié)構(gòu)設(shè)計。確定了分型面、澆注系統(tǒng)，推出機(jī)構(gòu)、冷卻系統(tǒng)等，選擇了注射機(jī)，計算了成型零部件的尺寸。并根據(jù)吸塵器蓋注塑模具的要求對注射機(jī)的各參數(shù)進(jìn)行了校核。然用AutoCAD軟件繪制了一套模具的裝配圖和零件圖。最后利用Cimantron軟件的CAM對型腔、型芯進(jìn)行數(shù)控加工編程和模擬加工，通過Cimantron軟件來出刀路軌跡。本設(shè)計的模具結(jié)構(gòu)簡單，機(jī)構(gòu)運行可靠，所繪制的模具圖紙對實際生產(chǎn)具有指導(dǎo)意義。

關(guān)鍵詞：注塑模具  機(jī)構(gòu)分析  模具設(shè)計 UG
Abstract
 The injection formation is one of main methods for thermoplastic  Injection  Mould, may complex model closely by a formation shape. With automobile industry requests fast  development , automobile each spare part is used renewal, therefore, the design and manufacture of injection mould appears particularity importantly. This paper discussed the design plastic injection mould of Automobile Piston Bracket . Use UG NX 4 moldwizard module function of the characteristics of the products for mold design. The author determined the parting surfaces and the gating system and Release the organization, cooling system etc, choosed the injection molding machine，calculated the sizes of the molding parts. Adopted to sprinkle directly in the design, make use of to keep lead the pillar direction fixed position, push the pole crest to anticipate, and carried on the choice to the material of the molding tool. According bracket injection mold parts to the requirements of the injection parameters of the machine was calibrated. And the author also drew a set of mold assembling chart and parts chart using AutoCAD software. Finally, the CAM software of Cimantron to made the cavity, the core for NC programming and simulation of processing, through Cimantron software tool path to a trajectory. As a whole the mould is simple in structure and good at working reliability. The design of this injection mold is of some significance for the fact production.
Keywords：Plastic of injection molding  The organization analysis  Mould design  UG
目  錄
摘   要 iii
Abstract iv
第一章  緒 論 1
第二章  模具發(fā)展 2
2.1現(xiàn)代模具的發(fā)展特點 2
2.2中國模具行業(yè)發(fā)展前景 3
2.3 模具設(shè)計與加工技術(shù)發(fā)展方向 4
2.4 注射模 5
2.4.1 注射模具的分類 6
2.4.2注射模具的結(jié)構(gòu)組成 6
2.5 UG與塑料模具 7
第三章  零件材料選擇和注塑機(jī)初選 8
3.1吸塵器蓋的結(jié)構(gòu)分析與材料選擇 8
3.2注塑機(jī)的初擇 9
3.3注塑機(jī)的有關(guān)工藝參數(shù)校核 10
3.3.1鎖模力的校核 10
3.3.2最大注塑量的校核 10
3.3.3開模行程和頂出距離的校核 11
3.3.4模具安裝尺寸的校核 11
第四章  吸塵器蓋模具設(shè)計 13
4.1澆注系統(tǒng)的設(shè)計 13
4.1.1澆注系統(tǒng)的組成 13
4.1.2澆注系統(tǒng)設(shè)計的原則 13
4.1.3主流道的設(shè)計 13
4.1.4分流道的設(shè)計 14
4.1.5澆口的設(shè)計 15
4.2分型面 16
4.2.1分型面的設(shè)計原則： 16
4.2.2分型面的形式 16
4.2.3吸塵器蓋模具的分型面的選擇 17
4.3型腔數(shù)目的確定 17
4.3.1 特點 17
4.3.2型腔數(shù)目的計算： 17
4.4 結(jié)構(gòu)零部件設(shè)計 18
4.4.1 標(biāo)準(zhǔn)模架 18
4.4.2 模架采用的基本形式 18
4.4.3 固定板、支承板 19
4.4.4 墊塊 20
4.4.5 合模導(dǎo)向機(jī)構(gòu)設(shè)計 20
4.5 成型零部件設(shè)計 21
4.5.1 型腔和型芯徑向尺寸的計算 21
4.5.2 型腔深度和型芯高度尺寸的計算 22
4.5.3 成型零件的強(qiáng)度與剛度的計算 22
4.5.4 矩形型腔側(cè)壁的計算 23
4.6側(cè)抽芯機(jī)構(gòu)的設(shè)計 24
4.7推出結(jié)構(gòu)設(shè)計 26
4.8冷卻系統(tǒng)設(shè)計 26
4.9排氣系統(tǒng)的設(shè)計 28
第五章Cimatron E加工 29
5.1 Cimatron E 加工模塊簡介 29
5.2 Cimatron E型腔加工 30
5.2.1工件簡介與工藝規(guī)劃 30
5.2.2型腔加工工藝安排 30
5.2.3型腔的加工步驟 31
5.3 Cimatron E型芯加工 33
5.3.1工件簡介與工藝規(guī)劃 33
5.3.2型芯加工工藝安排 33
5.3.3型芯的加工步驟 34
第六章 總   結(jié) 38
參考文獻(xiàn) 39
致  謝 40