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目 錄
內(nèi)容提要.....................................................................................................................?
SUMMARY...............................................................................................................П
1 課題提出的背景和意義..................................................................................1
1.1 課題的研究背景...............................................................................................1
1.2 UG的應(yīng)用前景及UG軟件應(yīng)用的意義..................................................1
2 零件的分析..........................................................................................................2
2.1 零件的作用 2
2.2 零件的工藝分析 .3
3 工藝規(guī)程設(shè)計(jì) .4
3.1 毛坯的制造形式 .4
3.2 基準(zhǔn)面的選擇 .4
3.3 制訂工藝路線 .4
3.4 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 .6
3.5 確定切削用量及基本工時(shí) .7
4 基于UG專(zhuān)用夾具設(shè)計(jì) ..20
4.1 問(wèn)題的指出 20
4.2 夾具設(shè)計(jì) 20
4.3 定位誤差的分析 21
4.4 利用UG對(duì)夾具的建模 21
4.5 基于UG的夾具建模過(guò)程概述..................................................................22
5 全文總結(jié)............................................................................................................30
參考文獻(xiàn) 31
致 謝 33
內(nèi)容提要
油液的滲漏問(wèn)題一直是汽車(chē)行業(yè)關(guān)注的問(wèn)題,而填料箱蓋的設(shè)計(jì)就成為了最為關(guān)鍵的環(huán)節(jié)。如何解決填料箱蓋的工藝規(guī)程如何縮短產(chǎn)品的設(shè)計(jì)周期是目前亟待解決的問(wèn)題,本畢業(yè)設(shè)計(jì)就是將利用UG對(duì)填料箱蓋的工藝規(guī)程進(jìn)行設(shè)計(jì),并進(jìn)行工藝夾具設(shè)計(jì)。
設(shè)計(jì)中,我首先對(duì)零件的進(jìn)行分析,根據(jù)零件的用途以及加工要求以及產(chǎn)品的批量我確定零件的所用材料,然后根據(jù)零件的尺寸設(shè)計(jì)零件加工工藝過(guò)程。設(shè)計(jì)中我先假設(shè)兩條加工路線,經(jīng)過(guò)多方面對(duì)比最后確定對(duì)零件的加工路線。隨后在設(shè)計(jì)好的工藝路線,我確定加工各工序的加工余量,計(jì)算各步工時(shí)。
在確定零件的加工工序后,我選擇對(duì)零件的第4道工序加工12孔進(jìn)行夾具設(shè)計(jì)。考慮到12孔中6-φ13.5,2-M10,4-M10,為平均分布,在設(shè)計(jì)中我將采用氣動(dòng)夾緊,采用心軸定位,可卸鉆模板與止口配合實(shí)現(xiàn)五點(diǎn)定位,設(shè)計(jì)中的定位精度高可與工件一起裝卸。
最后,我將運(yùn)用目前正廣泛使用的UG軟件,利用其強(qiáng)大的建模功能將零件和夾具進(jìn)行建模并進(jìn)行裝配,最后生成爆炸圖。在最后環(huán)節(jié)中,為了介紹UG軟件的建模功能我將將詳細(xì)地介紹填料箱蓋夾具體的建模過(guò)程。
在設(shè)計(jì)中對(duì)UG的應(yīng)用將有效地縮短產(chǎn)品設(shè)計(jì)周期。使整個(gè)設(shè)計(jì)看起來(lái)形象。
SUMMARY
Oil leakage issue is a concern of the automotive industry, and fill covers the design has become the most crucial link. Covers how to solve the packing process in order to shorten the product design cycle is the urgent need to solve the problem, the graduation project is to use UG Covers to fill the order of the design and conduct of fixture design.
In the desire, Firstly i analysis the part , I ascertain the material of the part use according to uses and the batches processing request if the product , the dimension according to the part designs that the part processes procedure and then. I assume two processes first in design, by that many ways contrasts ascertain the treating route to the part finally. Follow in designing the good handicraft route, I ascertain the treating margin processing every working procedure's, calculating working hour of every step.
After i ascertain the process of the part ,i decide to design the grip of the 4th work setp ,Conciding the 2-M10 , 4-M10,6-φ13.5 holes scatter averagely to 12 holes,I will adopt pneumatic fastening motion , adopt a mandril to fix position in design, may remove drill form board and stop may load and unload together with workpiece in coordination with realizing allocation accuracy height in at 5 o'clock fixing position , designing that.
I will use the UG software into gratuate design that broadly used at present finally, the model function making use of whose building big and powerful carries out the part and the clamp building the model and picture carrying out assembling , generating explosion finally. In the final step, I will introduce model buliding proess of UG software , I will sqeeze the cover introducing the filling box detailedly building model process concretely.
In design, the application to UG will shorten the product design cycle effectively. Make the whole design seem image.
全文總結(jié)
本文是針對(duì)如何提高填料箱蓋的加工質(zhì)量以及如何縮短產(chǎn)品生產(chǎn)周期提出的基于UG的填料箱蓋的工藝規(guī)程及夾具設(shè)計(jì)。本文的重點(diǎn)是對(duì)填料箱蓋加工路線的確定,制定工序卡片,然后對(duì)工序4中的鉆12孔進(jìn)行專(zhuān)用夾具設(shè)計(jì)。最后利用UG的建模功能對(duì)零件以及夾具零件進(jìn)行建模,最后進(jìn)行夾具與零件進(jìn)行裝配,生成爆炸圖。在本次設(shè)計(jì)中,我主要從以下方面得到了收獲:
(1) 在工藝規(guī)程設(shè)計(jì)的方面,對(duì)基準(zhǔn)面的選擇是十分重要的,正確合理的基準(zhǔn)面對(duì)加工質(zhì)量的保證,生產(chǎn)率的提高有很大的作用。最終經(jīng)過(guò)多方面的比較最終確定零件的粗基準(zhǔn)和精基準(zhǔn),在工藝路線的確定方面,我設(shè)計(jì)出了兩個(gè)不同的方案,兩個(gè)方案的不同之處在于對(duì)零件加工的順序不一樣,經(jīng)過(guò)多方面的分析,我最張選擇了工藝路線方案二,并對(duì)其進(jìn)行了改進(jìn)。
(2) 在確定工藝路線后,對(duì)工件的加工余量以及工時(shí)的確定也是十分重要的,我查閱了《工藝手冊(cè)》及《切削手冊(cè)》,對(duì)切削力進(jìn)行計(jì)算,對(duì)工件的強(qiáng)度進(jìn)行校核,最終確定零件的切削用量以及各工序的工時(shí)。
(3) 在進(jìn)行對(duì)工序4的加工12孔進(jìn)行專(zhuān)業(yè)夾具設(shè)計(jì),由于12孔中,
6-φ13.5,2-M10,4-M10,為均分布,尺寸精度為自由尺寸精度要求。其設(shè)計(jì)基準(zhǔn)為兩對(duì)稱(chēng)孔中心距,由于難以使工藝基準(zhǔn)與設(shè)計(jì)基準(zhǔn)統(tǒng)一,選擇以φ65外圓面作為定位基準(zhǔn)。在選定定位基準(zhǔn)后,夾緊方式的選擇成了重點(diǎn),考慮到夾具的體積和夾緊裝卸的方便性,所以采用氣動(dòng)夾緊。最終確定夾具的結(jié)構(gòu)。
(4)在對(duì)零件和夾具進(jìn)行UG的建模時(shí),我對(duì)UG的軟件的認(rèn)識(shí)及應(yīng)用又有了一個(gè)新提高。最終對(duì)零件和夾具進(jìn)行裝配。