形位精度等级和加工面加工精度等级、方案.docx
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1、附录二 形位精度公差值附表2-1 直线度、平面度公差值主参数L/mm公差等级123456789101112公差值/m100.20.40.81.223581220306010160.250.511.52.546101525408016250.30.61.223581220305010025400.40.81.52.546101525406012040630.5123581220305080150631000.61.22.54610152540601002001001600.81.53581220305080120250160250124610152540601001503002504001.22
2、.55812203050801202004004006301.536101525406010015025050063010002481220305080120200300600100016002.55101525406010015025040080016002500361220305080120200300500100025004000481525406010015025040060012004000630051020305080120200300500800150063001000061225406010015025040060010002000附表2-2 圆度、圆柱度公差值主参数L/mm公
3、差等级0123456789101112公差值/m30.10.20.30.50.81.22346101425360.10.20.40.611.52.54581218306100.120.250.40.611.52.546915223610180.150.250.50.81.223571118274318300.20.30.611.52.54681321335230500.250.40.611.52.547111625396250800.30.50.81.223581319304674801200.40.611.52.5461015223554871201800.611.223.558121825
4、40631001802500.81.2234.571014202946721152503151.01.62.54681216233252811303154001.2235791318253657891404005001.52.546810152027406397155附表2-3 平行度、垂直度、倾斜度公差值主参数L/mm公差等级123456789101112公差值/m100.40.81.5358122030508012010160.51246101525406010015016250.61.22.558122030508012020025400.81.536101525406010015025
5、0406312481220305080120200300631001.22.5510152540601001502504001001601.5361220305080120200300500160250248152540601001502504006002504002.551020305080120200300500800400630361225406010015025040060010006301000481530508012020030050080012001000160051020406010015025040060010001500160025006122550801202003005
6、008001200200025004000815306010015025040060010001500250040006300102040801202003005008001200200030006300100001225501001502504006001000150025004000主参数L/mm公差等级123456789101112公差值/m10.40.611.52.5461015254060130.40.611.52.54610204060120360.50.81.22358122550801506100.611.52.5461015306010020010180.81.2235812
7、204080120250183011.52.5461015255010015030030501.2235812203060120200400501201.52.54610152540801502505001202502358122030501002003006002505002.5461015254060120250400800500800358122030508015030050010008001250461015254060100200400600120012502000581220305080120250500800150020003150610152540601001503006001
8、00020003150500081220305080120200400800120025005000800010152540601001502505001000150030008000100001220305080120200300600120020004000附录三 机械加工的经济精度附表3-1 各种加工方法可能达到的公差等级加工方法公差等级IT01012345678910111213141516研磨珩磨内外圆磨削平面磨削金刚石车削金刚石镗削拉削铰孔车削镗削铣削刨削、插削钻孔滚压、挤压冲压附表3-2外圆柱面加工的经济精度直径基本尺寸 /mm车削磨削研磨用钢柱或滚柱工具 滚压粗车半精车或一 次
9、加工精车一次加工粗磨精磨加工的公差等级IT和误差值/m131212111097976510976131201206040209209644020963616016080482512251285482512861020020010058301530151065830151010182402401207035183518128703518121830280280140844521452114984452114305062034034017010050255025171110050251750807404004002001206030603020131206030208012087046046023
10、01407035703523151407035231201801000530530260160804080402718160804027180260115060060030018580479047302018590473026036013506806803402151005410054352221510054353605001550760760380250120621206240252501206240附表3-3孔加工的经济精度直径基本尺 寸/mm钻及扩孔钻扩孔铰孔无钻模有钻模粗 扩铸孔或冲 孔后一次 扩孔粗扩 或钻 孔后 精扩半精铰精铰细铰加工的公差等级IT和误差值/m12111211121
11、21110111098761336610101818303050508080120120180180260260360360500240280 340 6080 100 340 460 6080100120140 240280340 400 460 340 400 460 120140170200230 7084100120140 801001201401702002802603003404858708410012014016018521525303545506070809010018222738394654637384 131619232730354045508911直径基本尺 寸/mm拉孔
12、镗孔磨孔研磨粗拉孔后或钻孔 后精拉孔粗半 精精细粗精加工的公差等级IT和误差值/m9871211109876987613366101018352719240120703527191135271911183045332328014084453323134533231330505039273401701005039271550392715508060463040020012060463018604630188012070543546023014070543521705435211201808063405302601608063408063402418026060030018590734590734
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