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水桶蓋注塑模具設(shè)計(jì)畢業(yè)論文(存儲(chǔ)版)

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【正文】 有關(guān)心、幫助過我的朋友和同學(xué)!做好一個(gè)畢業(yè)設(shè)計(jì)真的不容易,衷心感謝我身邊所有的老師和同學(xué)!愿你們身體健康、工作順利! 王超凡 2014年5月26日29參考文獻(xiàn)[1] 趙華. 模具設(shè)計(jì)與制作[M]. 北京: 清華大學(xué)出版社, 2009.[2] 黃平、朱文堅(jiān). 機(jī)械設(shè)計(jì)教程理論、方法與標(biāo)準(zhǔn)[M]. 北京: 清華大學(xué)出版社, 2010.[3] 郭鐵良. 模具制造工藝學(xué)[M]. 北京:高等教育出版社, 2008.[4] 趙昌盛. 實(shí)用模具材料應(yīng)用手冊[M]. 北京:機(jī)械工業(yè)出版社, 2005.[5] 王煥庭、李茂華、徐善國. 機(jī)械工程材料[M]. 大連,大連理工大學(xué)出版社, 2000.[6] 屈華昌. 塑料成型工藝及模具設(shè)計(jì)[M]. 北京,高度教育出版社,2007.[7] 黃毅宏、李明輝. 模具制造工藝[M]. 北京: 機(jī)械工業(yè)出版社, 2003.[8] [M].西安:西北工業(yè)大學(xué)出版社,2000.[9] 宋濤、[M].北京:化學(xué)工業(yè)出版社,2003.[10]:中國輕工業(yè).[11] [M].廣州:華南理工大學(xué)出版社,1996.[12] [M].機(jī)械工業(yè)出版社,2005.[13] 蔣繼宏、王效岳 注塑模具典型結(jié)構(gòu)100例[M].北京:中國輕工業(yè)出版社,2000.[14] 王鵬駒、張杰 塑料模具設(shè)計(jì)師手冊 北京:機(jī)械工業(yè)出版社,2008.[15] :上??茖W(xué)技術(shù)出版社,1985第一版[16] : 機(jī)械工業(yè)出版社,2002.[17] :中國石化出版社,2000.[18] : 機(jī)械工業(yè)出版社,2002.[19] : 機(jī)械工業(yè)出版社,2000.3附 錄 附錄一 塑料制件尺寸公差 (單位:mm)公稱尺寸精度等級12345678公稱數(shù)值~3>3~6>6~10>10~14>14~18>18~24>24~30>30~40>40~50>50~65>65~80>80~100>100~120>120~140>140~160注:源自《實(shí)用注塑成型及模具設(shè)計(jì)》P41表215(+)號,用于基準(zhǔn)軸取負(fù)(-)號。 a threeaxis machines would have an additional vertical movement of the spindle, for example ,four,five or sixaxis machines provide additional liner or rotary movements. There classes of NC systems are monly recognized. One of these is called pointtopoint or positioning NC where a cutting tool and workplace are positioned with respect to each other before a cut is taken, as exemplified by an NC drill press. The path between points is of little concern and is not particularly controlled. Another class, known as a straightcut NC system, involves movements, between points like pointtopoint NC but along straight or curved paths determined by the machine ways or slides. An NC turret lathe may be of the second class. A third class is continuouspath NC, or more formally continuous tool path control, which does contouring or profiling or lines, curves, or surfaces, of all shapes. One way of achieving continuous path NC is to move the work piece or cutter from point to point along a straight line or curve with many points spaced closely enough together so that the position path of the cut approximates a desired curve within limits required. Another way is to drive machine members say as saddle and the table on it, along coordinate axes at varying velocities controlled so that the resultant motion is along a particular line or curve.An NC machine may be controlled through an openloop circuit. The openloop system is the simplest and cheapest but does not assure accuracy. A signal that is an order for a certain action is issued by the control unit. This travel through the travels through the drive mechanism which imposes the action upon the controlled member of the machine. The basic drive mechanism for a table or other machine member in an openloop system is a stepping motor, also called a digital or pulse motor. It has, for example,49poles around the armature inside of 50 poles around he stator. Two poles are always aligned. Poles are energized to align the next two poles and turn the armature through a definite small angle each time a pulse of electricity is received. The motor turns the lead screw, which moves the table a corresponding distance, If, for example, a pulse stands for a movement, and a movement of mm is desired, he control unit issues 50 pulses。還要感謝洛陽理工學(xué)院圖書館及圖書館熱情的管理員為我提供豐富的參考資料。這幾個(gè)月的設(shè)計(jì),時(shí)時(shí)出現(xiàn)問題和疑問,但是我還是感覺到一定的成就感,心里也蠻高興的,這也是對我這段時(shí)間的回報(bào)吧!洛陽理工學(xué)院畢業(yè)設(shè)計(jì)論文謝 辭首先感謝我的導(dǎo)師王雅紅老師,她的耐心和博學(xué)多才讓我佩服。 排氣系統(tǒng)由于塑件的尺寸適中,為薄殼型塑件,模具型腔空間較小,排氣量不大。圖64 分流道的截面形狀本模具只有一級分流道,半徑取4mm,分流道在定模板上銑削加工形成。 定位圈的固定使用M6內(nèi)六角螺釘。澆注系統(tǒng)零件的設(shè)計(jì) 澆口套的結(jié)構(gòu) 使用XS-ZY-500注射機(jī)時(shí)定位孔直徑為150mm,與澆口套下部尺寸相差較大,所以選用定位圈與澆口套分離的結(jié)構(gòu)。其結(jié)構(gòu)如零件圖所示。 水桶蓋推出機(jī)構(gòu)的設(shè)計(jì)1)推桿 推桿的直徑選6mm,采用圓柱形結(jié)構(gòu),長度由模板厚度和塑件的推出距離決定,取219mm。動(dòng)模部分的緊固螺釘選用M16258的內(nèi)六角螺釘,共12;另外M1240的內(nèi)六角螺釘6個(gè) 。 XSZY500注塑機(jī)要求: 最大模具厚度450mm最小模具厚度300mm 模具厚度確定為 H=410mmHminH=410mmHmax 模具厚度滿足注射機(jī)要求。凸模徑向尺寸計(jì)算公式: L=[l塑(1+k)+3/4△] = =式中 l塑 ——塑件內(nèi)行徑向的最小尺寸; L——凸模徑向的工作尺寸; 凸模的高度尺寸計(jì)算公式為: =[(1+%)+2/331] =式中 h塑——塑件內(nèi)腔的深度最小尺寸;   h——凸模高度的工作尺寸; 機(jī)架的選用 選擇標(biāo)準(zhǔn)模架型號中小型模架國家標(biāo)準(zhǔn)有四種基本型的結(jié)構(gòu)。 L——塑件基本尺寸(mm); δ——塑件的尺寸公差(mm),為雙向?qū)ΨQ偏差標(biāo)注; ΔS——單腔模注射時(shí)塑件可能產(chǎn)生的尺寸誤差的百分比; 4.按經(jīng)濟(jì)性確定型腔數(shù)根據(jù)總成型加工費(fèi)用最小的原則,并忽略準(zhǔn)備時(shí)間和試生產(chǎn)原材料費(fèi)用,僅考慮模具費(fèi)和成型加工費(fèi)。P (3—2) 由于注射壓力與制品的流動(dòng)比有關(guān)。(5)鎖模力 注塑機(jī)的合模機(jī)構(gòu)對模具所能施加的最大夾緊力,在此力的作用下模具不應(yīng)被熔融的塑料所頂開。常用的說法有:(1)按設(shè)備外形特征分類:臥式,立式,直角式,多工位注塑機(jī)。背壓力是指注塑機(jī)螺桿頂部的熔體在螺桿轉(zhuǎn)動(dòng)后退時(shí)所受到的壓力,背壓力除了可驅(qū)除物料中的空氣,提高熔體密實(shí)程度之外,還可以使熔體內(nèi)壓力增大,螺桿后退速度減小,塑化時(shí)的剪切作用增強(qiáng),摩擦熱量增大,塑化效果提高,根據(jù)生產(chǎn)經(jīng)驗(yàn),~。退火
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