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G71 P33 Q55 W0 F100 S500 /粗車外圓循環(huán) N33 G01 /粗車 ф 155 N36 N39 /粗車臺階 N42 N45 G03 /粗車 R5圓弧 N48 /粗車 ф 75 N52 /倒角 N55 /粗車 ф 80 N58 G00 /快速退刀 N61 T05 /調(diào) 05號切槽刀 N64 G00 N67 /快速定位到切槽點 N70 G71 P73 Q76 W0 F100 S500 西安科技大學(xué)畢業(yè)設(shè)計論文 1 /切槽循環(huán) N73 G00 N76 G01 N79 G70 P73 Q76 /精切循環(huán) N82 G00 N85 /回起始點 N88 M05 /主軸停 本章小結(jié) 在本章內(nèi)容中,主要講述了“填料箱蓋”加工的數(shù)控程序。在這里只設(shè)計了 工序 VI : 磨 φ 60內(nèi)孔底面的專用夾具。 問題的指出 本夾具主要用來加工 φ 60 內(nèi)孔底面,由于工藝要求不高,因此,在本道工序加工時,主要應(yīng)考慮如何提高勞動生產(chǎn)率,降低勞動強度。 切削力和夾緊力計算 本步加工可按磨削估算夾緊力。 軸向力 NkfdCFFyMMfFi ?????? ( 61) 扭矩 MNkfdCM MyMzMMc ???????? ? ( 62) 由于扭矩很小,計算 時可忽略。即 ,此誤差在允許的范圍內(nèi),因此西安科技大學(xué)畢業(yè)設(shè)計論文 1 符合要求。鉸鏈機構(gòu)能迅速夾緊和松開,達(dá)到了提高生產(chǎn)力和降低勞動強度的目的,因此能滿足要求。本章主要說明了為什么要設(shè)計專用的夾具來加工,專用夾具定位基準(zhǔn)的選擇,切削力、夾緊力的計算,定位誤差的分析 . 西安科技大學(xué)畢業(yè)設(shè)計論文 1 全文總結(jié) 通過完成這次的畢業(yè)設(shè)計,感覺收獲很大,不僅感覺在本專業(yè)知識面擴(kuò)大了,特別是夾具和工藝設(shè)計實際方面的知識,從原來的一知半解到現(xiàn)在已有一個較為清晰的認(rèn)識,雖然在設(shè)計過程中缺乏實際的生產(chǎn)經(jīng)驗,難免在實際的開發(fā)生產(chǎn)過程中對問題的突發(fā)性缺乏預(yù)見能力,但基本能把大學(xué)期間所學(xué)的專業(yè)知識都融會貫通起來了,并用于此次畢業(yè)設(shè)計當(dāng)中,達(dá)到學(xué)以致用的目的。另外,在設(shè)計過程中也做了很多重復(fù)性的工作,往往一個在設(shè)計上的缺陷,對后期的設(shè)計工作帶來影響而不得不推翻重新開始,于是,在不斷犯錯與解決中我總結(jié)了在設(shè)計過程中的一定經(jīng)驗,此中經(jīng)驗對我來說是十分寶貴的此種經(jīng)歷對我獨立思考問題、解決問題的能力也帶來很大的提高。因此,未來只能通過對自己在專業(yè)知識結(jié)構(gòu)上的不斷完善,把所學(xué)到的理論知識更好地運用到工作當(dāng)中,腳踏實地,在工作中學(xué)習(xí),學(xué)習(xí)后工作,把工作做得更加出色,更加完美,最后感謝學(xué)校及老師們的栽培! 西安科技大學(xué)畢業(yè)設(shè)計論文 1 致 謝 畢業(yè)論文暫告收尾,這也意味著我在大學(xué)的 三 年的學(xué)習(xí)生活既將結(jié)束。在這 三 年的時間里,我在學(xué)習(xí)上和思想上都受益非淺。 論文的寫作是枯燥艱辛而又富有挑戰(zhàn)的。在此,我特別要感謝我的導(dǎo)師 季漢民 老師。沒有 季漢民 老師的辛勤栽培、孜孜教誨,就沒有我論文的順利完成。最后要感謝我的家人以及我的朋友們對我的理解、支持、鼓勵和幫助,正是因為有了他們,我所做的 一切才更有意義;也正是因為有了他們,我才有了追求進(jìn)步的勇氣和信心。懇請閱讀此篇論文的老師多予指正,不勝感激!西安科技大學(xué)畢業(yè)設(shè)計論文 1 參考資料 1.《機床夾具設(shè)計》 第 2版 肖繼德 陳寧平主編 機械工業(yè)出版社 2.《機械制造工藝及專用夾具設(shè)計指導(dǎo)》 孫麗媛主編 冶金工業(yè)出版社 3.《機械制造工藝學(xué)》周昌治、楊忠鑒等 重慶大學(xué)出版社 4. 《機械制造工藝設(shè)計簡明手冊》李益民 主編 機械工業(yè)出版社社 6. 《機床夾具設(shè)計手冊》 王光斗、王春福主編 上??萍汲霭嫔? 7. 《機床專用夾具設(shè)計圖冊》南京市機械研究所 主編 機械工業(yè)出版社 8. 《機械原理課程設(shè)計手冊》 鄒慧君主編 機械工業(yè)出版社 9.《金屬切削手冊》第三版 上海市金屬切削技術(shù)協(xié)會 上??茖W(xué)技術(shù)出版社 10.《幾何量公差與檢測》第五版 甘永立 主編 上海科學(xué)技術(shù)出版社 11.《機械制造工藝學(xué)課程設(shè)計指導(dǎo)書》, 機械工業(yè)出版社 12.《機床夾具設(shè)計》 王啟平主編 哈工大出版社 ag an employment tribunal clai Emloyment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: you don39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept i. If you are worried about how the time limits apply to you If you are being represented by a solicitor at the tribunal, they may ask you to sign an 西安科技大學(xué)畢業(yè)設(shè)計論文 1 agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。s antiracism taskforce, is in London for the Football Association39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Ya ya Toure, he told BBC Sport. For me it39。s 21 win. Michel Platini, president of European football39。s actions. CSKA said they were surprised and disappointed by Toure39。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do 。總覺得自己似乎應(yīng)該去做點什么,或者寫點什么。 The end of our life, and can meet many things really do? 而窮盡我們的一生,又能遇到多少事情是真正地非做不可? During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。t really grow up, it seems is not so important。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。 instead of letting the world soften us, we let it drive us deeper into ourselves. We try to deflect the hurt and pain by pretending it doesn’t exist, but although we can try this all we want, in the end, we can’t hide from ourselves. We need to learn to open our hearts to the potentials of life and let the world soften 生不幸時,我們常常會關(guān)上心門;世界不僅沒能慰藉 我們,反倒使我們更加消沉。既然如此,何不嘗試打開心門,擁抱生活中的各種可能,讓世界感化我們呢? Whenever we start to let our fears and seriousness get the best of us, we should take a step back and reevaluate our behavior. The items listed below are six ways you can open your heart more fully and ,我們應(yīng)該退后一步,重新反思自己的言行。 Whenever a painful situation arises in your life, try to embrace it instead of running away or trying to mask the hurt. When the sadness strikes, take a deep breath and lean into it. When we run away from sadness that’s unfolding in our lives, it gets stronger and more real. We take an emotion that’s fleeting and make it a solid event, instead of something that passes through ,別再逃跑或隱藏痛苦,試著擁抱它吧;當(dāng) 悲傷來襲時,試著深呼吸,然后直面它。屏住呼吸,生活停滯;呼出呼吸,更多新奇與經(jīng)歷又將拉開序幕