【正文】 s to e and recapping the key points. This device, not used in the original, is culturally understandable but artistically mediocre. What puzzles me is the two new 邵陽學院畢業(yè)設計（論文） 27 songs for the opening and end credits. They were written in English, but sung by Chinese with an unfortable accent. They were obviously designed to appeal to an Englishspeaking base, but do not jibe with the Chinese di。s cultural foray overseas, has been widely panned by its home audience. Retitled Empresses in the Palace, the American version has been shortened from its original 76 episodes at 45 minutes each, to six 90minute episodes. The quick pacing threw off many native viewers, who are accustomed to a more leisurely daytimesoapstyle narrative rhythm. (Chinese TV stations would run two or three episodes every day.) I did not finish the fulllength version and found the truncated one not difficult to follow. What39。s president, who is also a renowned tenor, tells China Daily. During a tour in 1985, he went to a village and met an elderly local man, who told him a story about his friendship with a solider from Shenyang, capital of Northeast China39。s villages and entertain nomadic families, but their fame has spread around the world. On May 16 and 17, nearly 100 singers and dancers from the troupe performed at Beijing39。t just about sharing art with nomadic families but also about gaining inspiration for the music and dance. Ulan Muqir literally translates as red burgeon, and today39。t help but sing the folk songs, Nasun says. The vastness of Inner Mongolia and the lack of entertainment options for people living there, made their lives lonely. The nomadic people were very excited about our visits, Nasun recalls. We didn39。s Zhangye city during their journey to Kazakhstan, May 5, 2022. The caravan, consisting of more than 100 camels, three horsedrawn carriages and four support vehicles, started the trip from Jingyang county in Shaanxi on Sept 19, 2022. It will pass through Gansu province and Xinjiang Uygur autonomous region, and finally arrive in Almaty, formerly known as AlmaAta, the largest city in Kazakhstan, and Dungan in Zhambyl province. The trip will cover about 15,000 kilometers and take the caravan more than one year to plete. The caravan is expected to return to Jingyang in March 2022. Then they will e back, carrying specialty products from Kazakhstan A small art troupe founded six decades ago has grown into a household name in the Inner Mongolia autonomous region. In the 1950s, Ulan Muqir Art Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。 + 7+ 8 + 18+0 .18 0+0 .07 0+0 .06 4+0 .03 8加工方向 圖 鉆 — 粗鉸 — 精鉸φ 加工余量、工序尺寸及公差相互關(guān)系圖 邵陽學院畢業(yè)設計（論文） 26 為你提供優(yōu)秀的畢業(yè)論文參考資料，請您刪除以下內(nèi)容， O(∩ _∩ )O 謝謝！?。?A large group of tea merchants on camels and horses from Northwest China39。 根據(jù)上述結(jié)果，再查標準公差數(shù)值表可確定各工序的公差值分別為：精鉸；粗鉸： ，鉆： 。 由表可查得，精車余量 精鉸Z =；粗車余量 粗鉸Z =， 鉆Z =。 綜上所述，該加工過程各工序的工序尺寸及公差分別為，精車：φ ? mm；粗車：φ 416 ? mm，它們的相互關(guān)系如圖 所示。 查表可依次確定個工序尺寸的加工精度為，精車： IT9；粗車： IT12。 飛輪殼后端面內(nèi)腔孔尺寸鏈 加工飛輪殼后端面的工序有 2 道，分別為工序 2 粗車后端面孔，工序 5 精車后端面孔。 ⑴ 余量 4Z 的校核，在圖 3– 2b 所示工序尺寸鏈中 4Z 是封閉環(huán)，故 max4Z = max3P － min4P =[80+－（ 79－ ） ]mm= min4Z = min3P － max4P =[80－ －（ 79＋ ） ]mm= ⑵ 余量 3Z 的校核，在圖 3– 2c 所示工序尺寸鏈中 3Z 是封閉環(huán)，故 max3Z = max2P － min3P =[81+－（ 80－ ） ]mm= min3Z = min2P － max3P =[81－ －（ 80+） ]mm= ⑶ 余量 2Z 的校核，在圖 3– 2d 所示工序尺寸鏈中 2Z 是封閉環(huán)，故 max2Z = max1P － min2P =[84+－（ 81－ ） ]mm= min3Z = min2P － max3P =[84－ －（ 81＋ ） ]mm= 余量校核結(jié)果表明，所確定的工序尺寸公差是合理的。 ） mm。 ⑷ 從圖 3– 2c 所示工序尺寸鏈知： 1P = 2P + 2Z ，其中 2Z 為粗車余量，故有2Z =3mm，則 1P = 2P + 2Z =（ 81+3） mm=84mm。由于工序尺寸 2P 是在粗車加工中保證的，查表可知粗車端面工序的經(jīng)濟加工精度等級為 IT12，其公差值為 ，故 2P =（ 81177。 ） mm。 ⑵ 從圖 3– 2b 所示知， 3P = 4P + 4Z ，其中 4Z 為精車余量，故有 4Z =1mm，則3P = 4P + 4Z =（ 79+1mm） =80mm。 DZ4P1Z1P2 Z2Z3P3P4 圖 地 6 道工序加工方案示意圖 邵陽學院畢業(yè)設計（論文） 23 P3P4 Z4(a)(b)P4D P1P2 Z2(c)(d)P2P3Z3 圖 第 6 道工序工藝尺寸鏈 求解各工序尺寸及公差的順序如下： ⑴ 從圖 3– 2a 知， 4P =D=79177。 。 =，單件時間 djt =84s++ = 邵陽學院畢業(yè)設計（論文） 22 3 尺寸鏈計算 飛輪殼前后端面尺寸鏈 加工飛輪殼前后端面的工序有 4 道，分別為工序 1 粗銑前端面，工序 2 粗車后端面，工序 3 精車前端面，工序 6 精車后端面。 jt =，其他時間（ xb tt ? ） =6%179。 13mm/1000=。再將此轉(zhuǎn)速代入公式（ ），可求出該工序的實際鉆削速度 ? =n? d/1000=160r/min179。由公式（ ）可求得該工序鉆頭轉(zhuǎn)速 n=1000179。（ jt ＋ ft ） =6%179。 時間定額的確定：基本時間 jt =48s，輔助時間 ft =179。 ? 179。 18m/min/? =562r/min，參照搖臂鉆床 Z3040 主軸轉(zhuǎn)速，取轉(zhuǎn)速 n=630r/min。 504=，單件時間 djt =420s+84s+ = 工序 16—— 鉆前端面馬達螺紋孔 背吃刀量的確定：背吃刀量 pa =； 進給量的確定：進給量 f=邵陽學院畢業(yè)設計（論文） 21 切削速度的計算：由參考文獻 [5]表 5– 22 查得切削速度 ? =18m/min。 jt =84s，其他時間（ xb tt ? ） =6%179。 12mm/1000=。再將此轉(zhuǎn)速代入公式（ ），可求出該工序的實際鉆削速度 ? =n? d/1000=160r/min179。由公式（ ）可求得該工序鉆頭轉(zhuǎn)速 n=1000179。（ jt + ft ） =6%179。 時間定額的確定：基本時間 jt =240s，輔助時間 ft =179。 ? 179。 20m/min/35mm? =，參照搖臂鉆床 Z3040 主軸轉(zhuǎn) 速，取轉(zhuǎn)速 n=125r/min。 = ， 單 件 時 間djt =288s++ = 工序 14—— 锪后端面孔 4φ 35mm 背吃刀量的確定：背吃刀量 pa =（ 35mm－ 17mm） /2=9mm； 進給量的確定：進給量 f=切削速度的計算：由參考文獻 [5]表 5– 32 查得切削速度 ? =20m/min。 jt =，其他時間（ xb tt ? ） =6% 179。再將此轉(zhuǎn)速代入公式（ ），可求 出 該 工 序 的 實 際 鉆 削 速 度 ? =n ? d/1000=800r/min 179。由公式（ ）可求得該工序鉆頭轉(zhuǎn)速 n=1000179。（ jt + ft ） =6% 179。 時間定額的確定：基本時間 jt =354s，輔助時間 ft =179。 ? 179。 5m/min/7mm? =，參照搖臂鉆床 Z3040 主軸轉(zhuǎn)速，取轉(zhuǎn)速 n=320r/min。 ⑶ 工步 3 螺紋 4M6 攻絲、攻穿 背吃刀量的確定：背吃刀量 pa = 6mm－ 5mm=1mm； 進給量的確定：由于攻螺紋的進給量就是被加工螺紋的螺距，因此進給量f=1mm/r 切削速度的計算：由參考文獻 [5]表 5– 37 查得切削速度 ? =5m/min。 ? 179。 5m/min /13mm? =，參照搖臂鉆床 Z3040 主軸轉(zhuǎn)速，取轉(zhuǎn)速 n=125r/min。 邵陽學院畢業(yè)設計（論文） 19 ⑵ 工步 2 螺紋 4M12 攻絲、深 22mm 背吃刀量的確定：背吃刀量 pa = 12mm－ =； 進給量的確定：由于攻螺紋的進給量就是被加工