【正文】 程序設(shè)計(jì)簽字 日期 會(huì) 簽 日 期 程序?qū)徍撕炞? 日期 標(biāo)記 處數(shù) 更改文件號(hào) 簽字 日期 程序執(zhí)行簽字 日期 共 4 頁(yè) 第 4 頁(yè) 重慶機(jī)電職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）任務(wù)書 學(xué)生姓名 學(xué) 號(hào) 指導(dǎo)教師 技術(shù)職務(wù) 課題名稱 定位套的機(jī)械加工工藝規(guī)程及數(shù)控加工編程 課 題 內(nèi) 容 根據(jù)所給零件圖，生產(chǎn)綱領(lǐng)為中批或大批生產(chǎn)，進(jìn)行機(jī)械加工工藝規(guī)程及數(shù)控加工編程制定： ，了解零件的結(jié)構(gòu)特點(diǎn)和技術(shù)要求，對(duì)零件進(jìn)行結(jié)構(gòu)分析和工藝分析。 ，確定毛坯 的種類及制造方法。 ，選擇各工序的加工設(shè)備和工藝裝備，確定各工序的加工余量和工序尺寸及公差，計(jì)算各工序的切削用量和工時(shí)定額。 。 ，撰寫設(shè)計(jì)說(shuō)明書。 相 關(guān) 要 求 產(chǎn)品零件圖 1張 產(chǎn)品毛坯圖 1張 機(jī)械加工工藝過程卡片 1份 畢業(yè)設(shè)計(jì)說(shuō)明書 1份 進(jìn) 度 安 排 第 1周：完成畢業(yè)設(shè)計(jì)開題報(bào)告； 第 2周～第 4周：完成畢業(yè)設(shè)計(jì)初稿，交指導(dǎo)教師初審； 第 5周：繪制零件圖，繪制零件毛坯圖； 第 6周～第 16周：完成機(jī)械加工工藝過程卡的填制，主要加工過程的數(shù)控程序的編制及設(shè)計(jì)說(shuō)明書的整理等全部畢業(yè)設(shè)計(jì)工作，按要求交指導(dǎo)教師評(píng)閱。 指導(dǎo)教師： 年 月 日 零件圖如上圖 重慶機(jī)電職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）開題報(bào)告 學(xué)生姓名 系 別 指導(dǎo)教師 課題名稱 定位套的機(jī)械加工工藝規(guī)程及數(shù)控加工編程 閱讀中外文獻(xiàn)資料情況 《機(jī)械制圖》 《機(jī)械設(shè)計(jì)基礎(chǔ)》 《機(jī)械制造工藝與夾具》 《公差配合與測(cè)量技術(shù)》 《數(shù)控機(jī)床操作與編程》 《機(jī)械制造技術(shù)課程設(shè)計(jì)指導(dǎo)》 立題依據(jù)及主要內(nèi)容 本題目是根據(jù)機(jī)械設(shè)計(jì)與制造（自動(dòng)化）專業(yè)的機(jī)械制造方向的培養(yǎng)目標(biāo)和機(jī)械制造中的典型零件的機(jī)械加工工藝與數(shù)控程序編制要求而自擬的畢業(yè)設(shè)計(jì)題目，目的是提高自身理論聯(lián)系工程實(shí)際和工程實(shí)際設(shè)計(jì)功能。 ，了解零件的結(jié)構(gòu)特點(diǎn)和 技術(shù)要求，對(duì)零件進(jìn)行結(jié)構(gòu)分析和工藝分析。 ，確定毛坯的種類及制造方法。 ，選擇各工序的加工設(shè)備和工藝裝備，確定各工序的加工余量和工序尺寸及公差，計(jì)算各工序的切削用量和工時(shí)定額。 。 ，撰寫設(shè)計(jì)說(shuō)明書。 設(shè)計(jì)方案或論文提綱 定位套的機(jī)械加工工藝規(guī)程及數(shù)控加工編程 是包括零件加工的工藝設(shè)計(jì)、工序設(shè)計(jì)以及加工程序編制三部分。在工藝設(shè)計(jì)中要首先對(duì)零件進(jìn)行分析 ，了解零件的工藝再設(shè)計(jì)出毛坯的結(jié)構(gòu)，并選擇好零 件的加工基準(zhǔn)，設(shè)計(jì)出零件的工藝路線；接著對(duì)零件各個(gè)工步的工序進(jìn)行尺寸計(jì)算，關(guān)鍵是決定出各個(gè)工序的工藝裝備及切削用量；編制出定位套的加工程序，分析加工程序的合理性與不足之處，并在以后設(shè)計(jì)編制中注意改進(jìn)。 畢業(yè)設(shè)計(jì)（論文）工作計(jì)劃 第 1周：完成畢業(yè)設(shè)計(jì)開題報(bào)告； 第 2周～第 4周：完成畢業(yè)設(shè)計(jì)初稿，交指導(dǎo)教師初審； 第 5周：繪制零件圖，繪制零件毛坯圖； 第 6周～第 8周：完成機(jī)械加工工藝過程卡的填制，主要加工過程的數(shù)控程序的編制及設(shè)計(jì)說(shuō)明書的整理等全部 畢業(yè)設(shè)計(jì)工作，按要求交指導(dǎo)教師評(píng)閱。 指導(dǎo)教師審核意見 指導(dǎo)教師簽字： 年 月 日 請(qǐng)您刪除一下內(nèi)容， O(∩ _∩ )O 謝謝?。?！ Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 請(qǐng)您刪除一下內(nèi)容， O(∩ _∩ )O謝謝?。?！ National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。 ll wait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the weeklong holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the uping Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the remended travelling route, China Inner Mongolia Arxan — Hailar — Manzhouli. It is also the joint of the four prairies across the SinoMongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of geous colors all the year round the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name Haren Arxan means hot holy water in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the country39。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it39。s time for the wild fruits to ripe. The picturesque Arxan in Autumn is indeed a fairyland only exists in a dream that satisfies all your fantasies. If it rains heavily on Saturday night, some elderly Chinese will say it is because Zhinu, or the Weaving Maid, is crying on the day she met her husband Niulang, or the Cowherd, on the Milky Way. Most Chinese remember being told this romantic tragedy when they were children on Qixi, or the