2023年机修钳工题库钳工技师

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246.᝞Ð#qᜧMìOPíḄÂî]?CDEᜧMìÂî]?ï@IᵨᙠᜧìW⌕ḄðÈ#qÂñoâᑴ¥òàóஹôàḕ,ðḄ÷nPᜫᨬó஺Âî]?PúᑖüᑖPúEýᑖOPஹþᑖOPÿ
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஺ᵨḄ᝞ஹ!"ᔠ஺15.&'(Ḅ)*+,ᨵ./0᝞1234ᳮ06&'(Ḅ)*+,ᨵ7Ḅ8☢:&;<)ஹ&=>?+ᡈABC஺DE4F&GHIᣚK&;LᵨMᜧOPᜧQRST஺16.4UḄV⌕HXYZ064UḄV⌕HXAஹ[<)Ḅᔜ]23ᜧஹ^ஹ_ஹ⚗4ஹab஺Bஹcde[fᜓ23hij:k᦮Kᦑn:oᦑ4ᳮ஺Cஹ[ὁqfᜓ23ᦋsஹᦋ⌼஺Dஹ[ufᜓ23vs஺17ஹᐝxyz{ᵫ.}~ᑖ"ᡂ06ᐝxyz{Xᵫy3ᐝ:ᦪ"ᡂḄ{ᘤ,eᙠcḄy☢"ᔠᡂ.

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28bpb—~~+5=—y—+0.07=0.12(inm)(z)=-AA—=0.707xAK=0.707x0.12sin2=0.0707/஻K஻\d=\.+AJ,(Z)=0.12+0.0707=0.1907mmwjbH[ðT☢KñᜳᐹḄcÛÞßX0.1907mm,óRaäOP,7-ôK”:c஺2.᝞⚪¢ᡠØö÷ᓟù⚔ᳮ¢û49kNö÷ᓟù⚔KüýAḄzþDA=L3cm,ÿBḄDB=3.4cm,ᩨᩚ᝞ᡠᩨᩚᜧ49kNḄᱥP=W+JT/4*D=53.9MPaF=P*JT/4*D=7.154KNAF=(FA*25)4-750=238N3.᝞ᡠᵨ᪗ᓱᩭ"#$%Ḅ᜜ᙊ()*#+,h=50mm,᪗ᓱḄ-ᦪ/A=200mmo01᜜ᙊ(Ḅ2R/3

29)*AB=50BD=100R=AC/2AB/AD=AD/ACAC=AD2/AB=AB2+BD2
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=60.03-59.74+0.06=0.35mmA<>dᨬb_`A
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Tᢱ᳛fᦪPḄhᙳf6G=03
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opᐰnḄtuR/5=|H,-H“|=0.012mmopᐰnḄtuR/0.012mm஺6.ᙠm$%n□6ஹM12X1Ḅ15ḄdᑮbᦪJvV஺d1
M16Ḅ¡S2mmM165=D-L1P=16-1.1*2=13.8mm2
M12X15=D-1.1P=12-1.1*1=10.9mm:M16,M12X1Ḅ5ᑖ¢S13.8mmஹ610.9mm஺7."£¤6¥z6¦§¨JḄᓫª«¬/0.14mm,)®¯ᐕ±«¬0.02-0.06mmḄ³´µ6⚠FG╄>ᙠ᜜§ឮ¸ᐕ±«¬¹§ºᨵ0.1mmḄᑗ½#0╄>U$Ḅ¾╄TUḄᨬↈA=0.14-0.06+0.1=0.18mm╄TUḄᨬ¾A=0.14-0.02+0.1=0.22mm╄>UḄᓫª¾/0.18-0.22╄>UḄᨬↈA=0.14-0.06+0.1=0.18mm8.ᵨ᪗ᓱ"£A-ᦪY=80.05mm,)*ÀÁÂḄd=10mm,a=60஺,1BAḄ-Ãfᵨ᪗ᓱ"#S/77/77B=80.05m/n-2x(5mmH--------)=52.73mmlag30BAḄ-ᦪf/52.73mmo

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MAX+AMIX-BMAX=0.08mm+50mm-45mm=5(),)0!fmm{t=AMIX+A-BMIX=501mm+0.02mm—45Õ2mm=mmM1XlᱏḄ¾᩽▲A/Cᘤmm஺10.×$ØᵨÙÚÛᜮFGᑖᑜt)*ᑖᜮÞzßS1:40,à◤⌕FG37áᑖᑖ,᝞âãäÞzßåæçèIz40ᙌᑖᜮIz360஺360:40=(360/37)X“c36040xêcv3740[3]X=-------^-=—=1——I3603737ᑖᜮìIz1nIᑖᜮᜳᜮIz37ᑖî஺3711.᝞◤⌕ᑴäðñᵨòᧅòᧅḄh☢ôõAP◤⌕ö÷ᡈ⚞ᵨÇᧇûüýþᡷᧇ஺

32᝞ᐵ1ஹ4300ᕜ=3.14X300=9422ஹ630ᕜ=3.14X30=94.23ஹḄ=5754ஹ30Ḅ⚗ᑮḄ"#=575ஹ$%575&'(ஹ$57)%&*+ᙊ-ᙠᜧᙊ0942Ḅ1ஹᙠ2ᙊ094.2Ḅ1-34ᧅḄ67஺᝞8