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19 數(shù)控加工中心盤類零件加工 3 摘 要 盤類零件是由多個端面、深孔、螺紋孔、曲面、溝槽、外輪廓組合而成的較復雜的盤形零件。加工前需要做好充分的準備,包括圖紙分析、確定加工工藝、選用機床型號、選用毛坯大小、確定走刀路線與加工順序等,其前期的準備工作比較復雜。 所以,我作為數(shù)控行業(yè)的一份子要努力的提高自身的專業(yè)水平,不斷的鍛煉自己的實踐技能,成為一個全方面發(fā)展的數(shù)控技術人才。同時,數(shù)控系統(tǒng)中配備了多種典型循環(huán)程序供加工過程中編程選用。例如,在加工時刀具直徑為 10mm,零件兩端面距離為 9mm,若在加工前發(fā)現(xiàn)這一點便會在保證加工精度的情況下更換合適的刀具。銑削方式 的選擇應視零件圖樣的加工要求,工件材料的性質、特點以及機床 型號 、刀具 規(guī)格等條件 因素 綜合考慮。 盤類零件的加工路線 ( 1) z 軸方向走刀路線 在加工盤類零件時, Z 軸的切削深度尤為重要。 ( 2) x、 y 軸方向走刀路線 在加工盤類零件時, x、 y 軸方向走刀路線是否正確直接影響到零件加工的質量。 ( 3)對于二維輪廓加工通常采用以下幾個步驟: (1)從起刀點下刀到下刀點 ; (2)沿切向切入工件; (3)輪廓切削; (4)刀具向上 抬刀,退離工件; (5)返回起刀點。 加工工藝參數(shù)輸入部分以人機交互對話方式輸入盤類零件銑削加工的有關工藝參數(shù),如刀具半徑,起刀點、加工走向,主軸轉速、進給速度等。 N3 G17 G90 G40 G80 G49 G21。 N9 M03 S240。 N13 G00 Z100. M05。 N20 M03 S1000。 N24 G98 X36. Y26.。 N30 G90 G54 G00 X0. Y0.。 N34 X36. Y26.。 N38 M06 T04。 N44 G98 G81 Z35. F85。 數(shù)控加工中心盤類零件加工 16 N50 G90 G54 G00 X40. Y0.。 N54 Y15.。 N58 M06 T06。 N64 G01 Z10. F1000。 N68 X8. Y15. R15.。 N71 I30.。 N75 X61. F110。 N79 G03 X30. Y0. R15. F110。 N83 G40 Y0. F1000。 N87 M06 T07。 N93 G98 G81 Z30. R5. F140。 N97 G80 G91 G28 Z0. M05。 N103 M03 S830。 / M00。 N109 G43 Z100. H01。 N113 G91 G28 Z0.。 N120 G43 Z100. H09。 / M00。 N100 G43 Z100. H10。 N134 M06 T11。 N140 G01 Z10. F1000。 N144 I30.。 N148 X61. F110。 N152 G03 X30. Y0 R15. F150。 N156 G40 Y0. F1000。 N185 M06 T12。 N192 G98 G84 Z27. R10. F125。 N196 G80 G91 G28 Z0.。 (2) 插補誤差:這是由于用直線段或圓弧段逼近零件輪廓曲線所產(chǎn)生的誤差。 (4) 操作誤差 數(shù)控加工中心盤類零件加工 19 在加工過程中,操作者在操作過程中,工件的安裝引起的誤差和尋找工 件坐標原點過程中容易引起誤差。 尋找坐標原點過程中,由于使用的設備的精度不同,會帶來不同的誤差。 對我個人的數(shù)控技術及獨立完成加工的技能有了很大的幫助,并且使我更加喜歡數(shù)控技術專業(yè)。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。s 150th anniversary celebrations and will attend City39。s governing body, has also ordered an immediate investigation into the referee39。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。 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。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,突然數(shù)控加工中心盤類零件加工 22 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(jīng)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(jīng)想不起他的容顏。想要的,不想要的,界限明確,好像沒有什么可以撼動自己。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。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。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。如果我們一味逃避生活中的悲傷,悲傷只會變得更強烈更真實 —— 悲傷原本只是稍縱即逝的情緒,我們卻固執(zhí)地耿耿于懷 By utilizing our breath we soften our experiences. If we dam them up, our lives will stagnate, but when we keep them flowing, we allow more newness and greater experiences to 。 The initial impulse is to run away — to try and suppress these feelings by not acknowledging them. When we do this, we close ourselves off to the parts of our lives that we need to experience most. The next time you have this feeling of being truly unfortable, do yourself a favor and lean into the feeling. Act in spite of the fear. 我們的第一反應總是逃避 —— 以為否認不安情緒的存在就能萬事大吉,可這也恰好妨礙了我們經(jīng)歷最需要的生活體驗。 From: The supersonic descent could happen as early as Sunda. The weatheThe balloon will slowly drift to the edge of space at 120,000 feet (Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform. 數(shù)控加工中心盤類零件加工 24 Below, the Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he