【正文】 用量及工序尺寸等。 4） .選擇毛坯材料、制造方法和要求。同時，好的夾具設(shè)計可以提高產(chǎn)品勞動生產(chǎn)率，保證和提高加工精度，降低生產(chǎn)成本。由此可見，該零件的工藝性較好。根據(jù)表面粗糙度要求我們采取粗銑、半精銑的加工方式，即節(jié)省時間又能達到技 術(shù)要求。該杠桿的生產(chǎn)類型為中批生產(chǎn)，可以采用萬用型機床配以專用工、夾具，以提高生產(chǎn)率；而且運用工序集中原則使工件的裝夾次數(shù)少，不但可縮短輔助時間，而且由于在一次裝夾中加工了許多表面，有利于保證各加工表面之間的相對位置精度要求。再將轉(zhuǎn)速帶入公式（ 51），可求出實際轉(zhuǎn)速 v=ndπ /1000=160*π *80=。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lack of) air up there Cay man Islandsbased Webb, the Watch m head of Fifa39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。 Then in high school, think don39。嫌惡過自己的怯懦，最終卻發(fā)現(xiàn)有很多 緣分 ，有很多錯過，好像冥冥之中真的已經(jīng)注定。 Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( miles/ kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence. We often close ourselves off when traumatic events happen in our lives。 2. Embrace the unfortable We all know what that twinge of anxiety feels like. We know how fear feels in our bodies: the tension in our necks, the tightness in our stomachs, etc. We can practice leaning into these feelings of disfort and let them show us where we need to ，也都感受過恐懼造成的生理反應(yīng)：脖子僵硬、胃酸翻騰。s not needed. Instead, he plans to deploy his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. Even if everything goes as planned, it won39。 3. Ask your heart what it wants 傾聽內(nèi)心 We’re often confused at the next step to take, making pros and cons lists until our eyes bleed and our brains are sore. Instead of always taking this approach, what if we engaged a new part of ourselves that isn’t usually involved in the decision making process?我們常對未來猶疑不定，反復(fù)考慮利弊直到身心俱疲。下面六個方法有助于你更完滿透徹地敞開心扉。 From the corner at 28 the beginning of deep friendship。 A person39。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。s about how he felt and I would like to speak to him first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans during City39。式中）（）（ 3~1d* adl 2e21 ???? ； 3~1l2? ， 18ae? ， d=80 ， l=23 ， n*Z*n*fM ff zz ?? =*10*160=320mm/min，代入解得該工序基本時間：28 5 .6 4 sm i n0 9 2 0/2334t j ????? ）（ 輔助時間 ta 的計算： 輔助時間 ta 與基本時間 tj 之間的關(guān)系為 ta =（ ~） tj ，取 ta = 則各工序輔助時間分別為： 工序輔助時間： * a ?? ； 其他工作的時間： 工序 1 其他時間： *%6tt xb ???? ）（ 單件時間 tdj 的計算： 工序 1 的單件時間 dj ???? 第六部分 填寫機械加工工序卡 表格參考 P255 頁表 612 28 專用卡規(guī)設(shè)計 根據(jù)對零件的分析， 和 28 28 28 28 28 28 28 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。 4. 詳細工藝過程的制定，參考教材 P261 中的表 613。 Φ 10孔加工，表面粗糙度為 ，根據(jù)表面粗糙度要求我們采取鉆孔就能達到要求。毛坯尺寸通過確定加工余量后再決定。一個好的夾具是將這些問題很好的協(xié)調(diào)好的一個統(tǒng)一整體，在此次的夾具設(shè)計也正是向著這個目標(biāo)靠近。 8).結(jié)束語 9).參考文獻 (包括與設(shè)計有關(guān)的書、期刊、報告等 ) 10).要求文字和圖形要清淅、完整、正確、合理，圖形一律用所學(xué)軟件繪制，圖幅大小視 零件大小自行決定。28 鄭州電力職業(yè)技術(shù)學(xué)院 畢 業(yè) 設(shè) 計 設(shè)計題目 : 杠桿的加工工藝及專用卡規(guī)的設(shè)計 系 別 : 機電工程系 專 業(yè) : 數(shù)控技術(shù)