【正文】 示 : 其余X0. 5圖 58 固定擋 料銷 57固定擋料銷 始用擋料銷 : 根據(jù)導料板間距 L=200,可得導料板寬度 =()/2=,在根據(jù)表 332,由 t=4mm,可得導料板厚度為 12mm。 熱處理 : 塊 — 硬度HRC43~48。 如圖 510所示 : 其余圖510 導料板 導正銷 : 使用導正銷的目的是消除送料時用擋料銷和導料板等定位零件作粗定位時的誤差 ,保證沖件在不同工位上沖出的內形與外形之間的相對位置公差要求 .導正銷主要用于級進模 ,也可用于單工序模 .導正銷通常設在落料凸模上 ,與擋料銷配合使用 ,因此我們采用導正銷 ,其中 A型用于導正 d=2~12mm的孔 ,安裝處 按 H7/n6配合根據(jù) GB 型山東工業(yè)職業(yè)學院畢業(yè)論文（畢業(yè)設計） 19 導正銷可得出導正銷 ,如圖 511,512所示 : 圖511 型導正銷圖512 型導正銷其余其余 (4).設計和選用卸料與出件零件 卸料以固定板卸料 ,出件是以凸模往下沖即可 ,因此不用設計出件零件 .固定卸料板的平面外形尺寸一般與凹模板相同 ,其厚度可取凹模厚度的 ~1 倍 ,所以卸料板的LXBXH==200X160X44,卸料板在此僅起卸料作用 ,凸模與卸料板間的雙邊間隙一般取 ~,這里取 ,根據(jù)表 83,材料為 Q275。 AA圖51 3 卸 料板 (5).選擇模架及其它模具零件 選擇模架 : 根據(jù) GB/T ,由凹模周界 200X160,及安裝要求 ,選取 凹模周界 :LXB=250X200,閉合高度 :H=220~265,上模座 :250X200X50， 下模座 :250X200X60,導柱 :32X210,35X210, 導套 :32X115X48,35X115X48。 圖 514只是草圖 ,具體零件參閱《模具標準匯編 (一 )》 AA圖514 模架 模柄 : 由壓力機的型號 60,深度為 80,由裝配要求 ,模柄與模柄孔配合為 H7/m6 并加銷釘防轉 ,模柄長度比模柄孔深度小 5~10mm,由于采用固定卸料，上模座回程時受力較大，因此選用壓入式模柄較合理，所以根據(jù) 515所示 : 墊板 : 墊板的作用是承受并擴散凸模傳遞的壓力 ,以防止模座被擠壓損傷 ,因此在與模座接觸面之間加上一塊淬硬磨平的墊板 .墊板的外形尺寸與凸模固定板相同 ,厚度可取3~10mm,這里設計時 ,由于壓力較大 ,根據(jù) LXBXH=200X160X8。 凸模固定板 : 凸模固定板的外形尺寸與凹模的外形尺寸一致 ,厚度為凹模的 ~,h為凹 模的厚度 ,這里取 ,即 =,根據(jù)核準選取板的規(guī)格為 LXBXH=200X160X32。 (2).滑塊行程 滑塊行程應保證坯料能順利地放入模具和沖壓能順利地從模具中取出 .這里只是材料的厚度 t=4,導料板的厚度 H=12 及凸模沖入凹模的最大深度 14,即S1=4+12+14=30S=130,所以得以校核 。 (4)工作臺面的尺寸 根據(jù)下模座 LXB=370X270,且每邊留出 60~100,即 L1XB1=470X370,而壓力機的工作臺面 L2XB2=800X540,沖壓件和廢料從下模 漏出 , 漏料尺寸 95X50,而壓力機的孔尺寸為 360X23,故符合要求 ,得以校核 。 (6).閉合高度 由壓力機型號知 Hmax=380 M=90 H1=100 Hmin=Hmax– M=38090=290 (M為閉合高度調節(jié)量 /mm,H1 為墊板厚度 /mm) 由式 (124):( Hmax– H1)5≥H≥( Hmin – H1)+10,得 (380– 100)5≥26 2≥(290 – 100)+10 山東工業(yè)職業(yè)學院畢業(yè)論文（畢業(yè)設計） 22 即 275≥262≥200 , 所以所選壓力機合適 ,即壓力機得以校核 。沖壓加工在現(xiàn)代工業(yè)生產中，尤其是大批量生產中應用十分廣泛。在這些工業(yè)部門中，沖壓件所占的比重都相當?shù)拇?，少則 60%以上，多則 90%以上。因此可以說，如果生產中不諒采用沖壓工藝，許多工業(yè)部門要提高生產效率和產品質量、降低生產成本、快速進行產 品更新?lián)Q代等都是難以實現(xiàn)的。沖壓工藝與模具、沖壓設備和沖壓材料構成沖壓加工的三要素，只有它們相互結合才能得出沖壓件。導師的教誨是學生寶貴的精神財富，并將使學生受益終 身。在此對它致以真誠的感謝 ! 最后，深深地感謝默默支持本人完成學業(yè)的父母及親友，感謝他們?yōu)槲宜龀龅臒o 私奉獻和巨大支持！謹向所有在本文的完成中給予關懷和幫助而在此無法一一提及的老師、同學和朋友致以誠摯的謝意！ 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 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。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 Watch m Cay man Islandsbased Webb, the head of Fifa39。s 150th anniversary celebrations and will attend City39。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。s governing body, has also ordered an immediate investigation into the referee39。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。或許是愧疚于自己似乎把轉瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏。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。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。 Then in high school, think don39。t remember his appearance. 童年時，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進，會越來越 發(fā)現(xiàn)，那些東西根本就可有可無；初中時，以為要有一場暗戀才意味著真正的成長， 但三年過去后，自己心平氣和的寫同學錄的時候，突然就發(fā)現(xiàn)是不是真正的成長了， 好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯 里的懵懂情愫劃上一個句點，但畢業(yè)晚會的時候最終還是被梗塞在了咽喉，后來再次 站在他曾經揮汗如雨的球場，看著他投過籃球的球框時，突然間發(fā)現(xiàn)自己已 經想不起他的容顏。 A person39。想要的，不想要的，界限明確，好像沒有什么可以撼動自己。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注定。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。 From the corner at the beginning of deep friendship。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻，天空是陰暗的，空氣里有著剛下過雨之后的清新因子。 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。我們假裝一切仿佛都不曾發(fā)生，以此試圖忘卻傷痛，可就算隱藏得再好，最終也還是騙不了自己。下面六個方法有助于你更完滿透徹地敞