《形位精度等级和加工面加工精度等级、方案.docx》由会员分享,可在线阅读,更多相关《形位精度等级和加工面加工精度等级、方案.docx(11页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
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
13、52726036068034021510084501008450303605007603802501209560120956035附表3-4平面加工的经济精度刨削和圆柱铣刀及套式面铣刀铣削拉削磨削基本尺寸 /mm (高或厚)半精车粗拉铸一次 加工研用钢球或滚粗或一次 加工精细造冲压 表面精拉粗精细磨柱工具滚压加工的公差等级IT和误差值/m1312111211109761110976979765109710184302401202401207035181235183518128703518183052028014028014084452114140844521144521452114984452
14、130506203401703401701005025171701005025175025502517111005025508070040020040020012060302020012060302060306030201312060308012087046023046023014070352323014070352370357035231514070351201801000530260530260160804027260160804027804080402718160804018026011506003006003001859047303001859047309047904730201859
15、047260360135068034068034021510054351005410054352221510054360500155076038076038025012062401206212062402525012062注:1.表内资料适用于尺寸 1m,结构刚性好的零件加工:用光洁的表面作为定位基准和测量基准,2 .套式面铣刀铣削的加工精度在相同的条件下大体上比圆柱铣刀铣削高一级。3 .细铣仅用于套式面铣刀铣削。附表3-5端面加工的经济精度(单位:mm)加工方法直径5050120120260260500车削粗0.150.200.25040精0.070.100.130.20磨削普通0.030.
16、040.050.07精密0.020.0250.030.035附表3-5平面度和直线度的经济精度加工方法公差等级IT加工方法公差等级IT研磨、精密磨、刮研12粗磨、铣、刨、拉、车78研磨、精磨、刮34铣、刨、车、插910磨、刮、精车56各种粗加工1112附表3-6平行度的经济精度加工方法公差等级IT加工方法公差等级IT研磨、金钢石精密加工、精刮12铣、磨、刨、拉、镗、车78研磨、珩磨、刮、精密磨34铣、镗、车,按导套钻、铰910磨、坐标镗、精密铣、精密刨56各种粗加工1112附表3-7端面圆跳动和垂直度的经济精度加工方法公差等级IT加工方法公差等级IT研磨、精密磨、金刚石精密加工12磨、刨、铣、
17、刮、镗78研磨、精磨、精刮、精密车34车、半精车、刨、镗910磨、刮、珩、精刨、精铣、精镗56各种粗加工1112附表3-8同轴度的经济精度附表3-9各种加工方法能达到的表面粗糙度加工方法公差等级IT加工方法公差等级IT研磨、珩磨、精密磨、金刚石精密 加工12粗磨、车、镗、拉、镗78精磨、精密车,一次装夹下的内圆34车、镗、钻910磨、珩磨各种粗加工1112磨、精车,一次装夹下的内圆磨及 镗56加工方法表面粗糙度 Ra/m加工方法表面粗糙度 Ra/m自动气割、带锯或圆盘锯割断5012.5钻15mm6.33.2切断车5012.515mm256.3铣2512.5扩孔粗(有表皮)12.56.3砂轮3.
18、21.6精6.31.6车削外圆粗车12.53.2锪倒角(孔的)3.21.6半精车金属6.33.2带导向的锪平面6.33.2非金属3.21.6镗孔粗镗12.56.3精车金属3.20.8半精镗金属6.33.2非金属1.60.4非金属6.31.6精密车(或金 刚石车)金属0.30.2精镗金属3.20.8非金属0.40.1非金属1.60.4车削端面粗车12.56.3精密(或金刚石镗)金属0.80.2半精车金属6.33.2非金属0.40.2非金属6.31.6高速镗0.80.2精车金属6.31.6铰孔半精铰(一次铰)钢6.33.2非金属6.31.6黄铜6.31.6精密车金属0.80.4精铰 (二次铰)铸铁
19、3.20.8非金属0.80.2钢、轻合金1.60.8切槽一次行程12.5黄铜、青铜0.80.4二次行程6.33.2精密铰钢0.80.2高速 车削0.80.2轻合金0.80.4黄铜、青铜0.20.1圆柱铣 刀铣削粗12.53.2超精加工精0.80.1精3.20.8精密0.10.05精密0.80.4镜面加工(两次加工)0.025端铣刀 铣削粗12.53.2抛光精0.80.1精3.20.4精密0.10.025精密0.80.2砂袋抛光0.20.1高速铣削粗1.60.8砂布抛光1.60.1精0.40.2电抛光1.60.012刨削粗12.53.2螺纹加工切削板牙、丝锥、自开式 板牙头3.20.8精3.21
20、.6精密0.80.2车刀或梳刀车、铣6.30.8槽的表面6.33.2磨0.80.2插削粗2512.5研磨0.80.05精6.31.6滚轧搓丝模1.60.8拉削精1.60.4滚丝模1.60.2精密0.20.1齿轮及花 键加工切削粗滚3.21.6推削精0.80.2精滚1.60.8精密0.40.025精插1.60.8外圆磨削 内圆磨削半精(一次加工)6.30.8精刨3.20.8精0.80.2拉3.21.6精密0.20.1剃0.80.2精密、超精密磨削0.050.025磨0.80.1镜面磨削0.05研0.40.2平面磨削精0.80.4滚轧热轧0.80.4精密0.20.05冷轧0.20.1珩磨粗(一次加
21、工)0.80.2刮粗3.20.8精、精密0.20.025精0.40.05研磨粗0.40.2滚压加工0.40.05精0.20.05钳工锉削12.50.8精密0.05砂轮清洗506.3附录四 加工面的机加工方案附表4-1外圆表面加工方案序 号加工方案经济加工公 差等级(IT)加工表面 粗糙度Ra/m适用范围1粗车11125012.5适于淬火钢以外的各 种金属2粗车-半精车8106.33.23粗车-半精车-精车671.60.84粗车-半精车-精车-滚压(抛光)560.20.0255粗车-半精车-磨削670.80.4主要适于淬火钢,也可 用于未淬火钢,不宜加 工非铁金属6粗车-半精车-粗磨-精磨560
22、.40.17粗车-半精车-粗磨-精磨-超精加工(或轮式超精磨)560.10.0128粗车-半精车-精车-金刚石车560.40.025主要用于要求较高非 铁金属9粗车-半精车-粗磨-精磨-超精磨(或镜面 磨)5级以上0.025极高精度的钢或铸铁 的外圆加工10粗车-半精车-粗磨-精磨-研磨5级以上0.1附表4-2孔加工方案序 号加工方案经济加工公 差等级(IT)加工表面 粗糙度Ra/m适用范围1钻111212.5加工未淬火钢及铸铁 的实心毛坯,也可用 于加工非铁金属(但 表面粗糙度较高),孔 径20mm2钻-铰893.21.63钻-粗铰-精铰781.60.84钻-扩1112.56.3加工未淬火钢
23、及铸铁 的实心毛坯,也可用 于加工非铁金属(但 表面粗糙度较高),孔 径20mm5钻-扩-铰893.21.66钻-扩-粗铰-精铰71.60.87钻-扩-机铰-手铰670.40.18钻-(扩)-拉(或推)791.60.1大批大量生产中、小零件的通孔9粗镗(或扩孔)111212.56.3除淬火钢之外各种材 料,毛坯有铸出孔或10粗镗(粗扩)-半精镗(精扩)9103.21.611粗镗(粗扩)-半精镗(精扩)-精镗(铰)781.60.8锻出孔12粗镗(粗扩)-半精镗(精扩)-精镗-浮动镗刀块精镗670.80.413粗镗(扩)-半精镗-磨孔780.80.2主要用于加工淬火 钢,也可用于不淬火 钢,但不宜
24、用于非铁 金属14粗镗(扩)-半精镗-粗磨-半精磨670.20.115粗镗-半精镗-精镗-金刚镗670.40.05用于精度要求较高的 非铁金属加工16钻-(扩)-粗铰-精铰-珩磨 钻-(扩)拉-珩磨 粗镗-半精镗-精镗-珩磨670.20.025精度要求很高的孔17以研磨代替上述方案中的珩磨560.1成批大量生产的非铁 金属材料零件中的小 孔,铸铁箱体上的孔18钻(或粗镗)-扩(半精镗)-精镗-金钢镗- 脉冲滚挤670.1附表4-3平面加工方案序 号加工方案经济加工公 差等级(IT)加工表面 粗糙度Ra/m适用范围1粗车-半精车896.33.2端面2粗车-半精车-精车671.60.83粗车-半精车-磨削790.80.24粗刨(或粗铣)-精刨(或精铣)796.31.6一般不淬火的平面5粗刨(或粗铣)-精刨(或精铣)-研磨560.80.1精度要求较高粹硬平 面,批量较大宜采用宽 刃精刨方案6粗刨(或粗铣)-精刨(或精铣)-宽刃精 刨670.80.27粗刨(或粗铣)-精刨(或精铣)-磨削670.80. 2精度要求较高粹硬平面 或不粹硬平面8粗刨(或粗铣)-精刨(或精铣)-粗磨- 精磨560.40. 259粗铣-拉690.80. 2大批量生产,较小的平 面10粗铣-精铣-磨削-研磨5级以上0.1高精度平面