ie工業(yè)工程_小五金工程評估手冊

目錄1. 螺釘 61.1螺紋標(biāo)志及尺寸 61.1.1米制細牙螺紋 71.1.2米制粗牙螺紋 81.1.3英制細牙螺紋 81.1.4英制粗牙螺紋 91.2通孔孔徑 101.3攻螺紋孔孔徑 111.3.1米制細牙螺紋 111.3.2米制粗牙螺紋 111.3.3英制細牙螺紋 121.3.4英制粗牙螺紋 131.3.5板材上孔與板邊間距 131.4 配合尺寸 131.5 機械性能 131.6 鋼板厚度 141.7 特殊螺釘 151.7.1 自攻螺釘 151.7.1.1 硬化層深度 151.7.1.2 硬度 161.7.1.3 尺寸 161.7.1.4 工作扭力 171.7.1.5 結(jié)合比與預(yù)沖孔呎寸關(guān)系 181.7.1.6 鋼板孔徑及抽牙高 191.7.2 塑料螺釘 201.7.2.1 螺紋形狀 201.7.2.2 硬度 211.7.2.3 螺紋呎寸 211.7.3 浮動螺釘 211.7.3.1 浮動螺釘形狀 211.7.3.2 基本要求 211.8 螺釘驗證方法 22資料： 23A 螺釘常見穴型簡介 23B 常用板材硬度 23C 電鍍層 232. 螺母 242.1制造材料 242.1.1材料牌號 242.1.2材質(zhì)化學(xué)成份 242.1.3 機械性能 242.1.4 螺母材料的選取 242.2尺寸及公差 252.2.1型號為“S. SS. CLS以及CLSS”的自鉚螺母尺寸 252.2.2型號為SP, 專用于不銹鋼沖壓板件上的自鉚螺母尺寸 282.2.3型號為H, HN, HNL之易削鋼制自鎖和防鎖螺母的尺寸 302.2.4型號為F的自鉚螺母尺寸 302.2.5尺寸公差 322.3 壓鉚要求 322.4 配合呎寸 352.5 螺母驗證方法 353. 螺柱 363.1制造螺柱材料 363.1.1材料牌號 363.1.2化學(xué)成份 363.1.3 機械性能 363.1.4 螺柱材料的選取 373.2尺寸 373.2.1型號為“SO. SON. SOA. SOS. ”的通孔螺柱 373.2.1.1一般尺寸 383.2.1.2螺紋規(guī)格和螺柱長度 393.2.2 型號為“BSO.BSON. BSOA.BSOS. ”的盲孔螺柱 403.2.2.1一般尺寸 403.2.2.2螺紋規(guī)格和螺柱長度 413.3 公差 433.4 壓鉚要求 433.5 螺柱驗證方法 444. 支柱 454.1型號為“SO.SON. SOA.SOS”的通孔支柱 454.1.1材料牌號 454.1.2材質(zhì)化學(xué)成份 454.1.3機械性能 454.1.4 螺柱材料的選取 464.1.5一般尺寸 464.1.6支柱規(guī)格和支柱長度 474.1.7公差 494.2 其它異型支柱 494.2.1 制造材料 494.2.2尺寸 494.2.3 板材厚度及孔徑 514.3 壓鉚要求 514.4 支柱驗證方法 525.拉釘 535.1 拉釘制造材料 545.2 尺寸 545.3 拉釘驗證方法 556.彈簧 566.1 彈簧制造材料 566.2彈簧鋼絲呎寸 566.2.1制造彈簧用不銹鋼鋼絲標(biāo)準(zhǔn)直徑 566.2.2標(biāo)準(zhǔn)鋼絲尺寸偏差 576.3 彈簧自由長度 576.4 彈簧外徑D 576.5彈簧的總?cè)?shù) 576.6 彈簧的方向 576.7彈簧驗證方法 571 螺釘定義：由頭部和螺桿兩部份構(gòu)成的一類緊固件 本手冊中包括的螺釘主要有機械螺釘、自攻螺釘、塑料螺釘和浮動螺釘?shù)葯C械螺釘：由頭部和螺桿兩部份構(gòu)成的一類金屬緊固件主要用于一個帶有內(nèi)螺紋孔的零件與帶有通孔的零件之間的緊固聯(lián)接，不需要螺母配合；也用于帶有通孔的零件之間的緊固聯(lián)接，但要與螺母配合屬可拆卸連接自攻螺釘：由頭部和螺桿兩部份構(gòu)成的一類金屬緊固件，但螺桿上的螺紋為專用的自攻螺釘用螺紋用于緊固聯(lián)接兩個薄的金屬構(gòu)件，使之成為一體，構(gòu)件上需事先制出小孔這種螺釘具有較高的硬度，可直接旋入構(gòu)件的孔中，使構(gòu)件孔中形成相應(yīng)的內(nèi)螺紋塑料螺釘：由頭部和螺桿兩部份構(gòu)成的一類金屬緊固件，但螺桿上的螺紋為專用的塑料螺釘用螺紋可直接旋入塑料件中，用于把一個帶通孔的金屬(或非金屬)零件與一個塑料件緊固聯(lián)接在一起浮動螺釘：壓鉚于沖件預(yù)制孔內(nèi), 用于經(jīng)常拆裝之沖壓件的把手螺釘, 其結(jié)構(gòu)特點是螺釘本體內(nèi)包含彈性體1.1 螺紋標(biāo)志及尺寸(除非特別指明，適用于所有的螺釘、螺母和螺柱)螺紋分為外螺紋和內(nèi)螺紋兩種，一般螺釘為外螺紋形式，螺母或螺柱為內(nèi)螺紋形式，常用的螺紋如圖示H：原始三角形高度 P：螺距 D：內(nèi)螺紋公稱直徑 d：外螺紋公稱直徑 H1：螺紋牙高D2：內(nèi)螺紋中徑 D1：內(nèi)螺紋小徑 d2：外螺紋中徑d1：外螺紋小徑n為每英寸牙數(shù)1.1.1米制細牙螺紋H =0.866025P d2=d-0.649519P D=dH1=0.541266P d1=d-1.082532P D2=d2 D1=d1單位mm螺紋標(biāo)志PH1d(D)d2(D2)d1(D1)M1 0.20.20.1081.0000.8700.783M1.10.20.20.1081.1000.9700.883M1.20.20.20.1081.2001.0700.983M1.40.20.20.1081.4001.2701.183M1.60.20.20.1081.6001.4701.383M1.80.20.20.1081.8001.6701.583M2 0.250.250.1352.0001.8381.729M2.20.250.250.1352.2002.0381.929M2.50.350.350.1892.5002.2732.121M3 0.350.350.1893.0002.7732.621M3.50.350.350.1893.5003.2733.121M4 0.50.50.2714.0003.6753.459M4.50.50.50.2714.5004.1753.959M5 0.50.50.2715.0004.6754.459M5.50.50.50.2715.0005.1754.959M6 0.750.750.4066.0005.5135.1881.1.2米制粗牙螺紋H =0.866025P d2=d-0.649519P D=dH1=0.541266P d1=d-1.082532P D2=d2 D1=d1單位mm螺紋標(biāo)志PH1d(D)d2(D2)d1(D1)M10.250.1351.0000.8380.729M1.10.250.1351.1000.9380.829M1.20.250.1351.2001.0380.929M1.40.30.1621.4001.2051.075M1.60.350.1891.6001.3731.221M1.80.350.1891.8001.5731.421M20.40.2172.0001.7401.567M2.20.450.2442.2001.9081.713M2.50.450.2442.5002.2082.013M30.50.2713.0002.6752.459M3.50.60.3253.5003.1102.850M40.70.3794.0003.5453.242M4.50.750.4064.5004.0133.688M50.80.4335.0004.4804.134M610.5416.0005.3504.9171.1.3英制細牙螺紋 P=25.4n H =0.866025P d=(d) 25.4 D=d H1=0.541266P d2=(d-0.649519/n) 25.4 D2=d2 d1=(d-1.082532/n) 25.4 D1=d1單位mm螺紋標(biāo)志(Reference)nPH1d(D)d2(D2)d1(D1)No. 0-80 UNF0.0600-80 UNF800.31750.1721.5241.3181.181No. 1-72 UNF0.0730-72 UNF720.35280.1911.8541.6261.473No. 2-64 UNF0.0860-64 UNF640.39690.2152.1841.9281.755No. 3-56 UNF0.0990-56 UNF560.45360.2462.5152.2202.024No. 4-48 UNF0.1120-48 UNF480.52920.2862.8452.5022.271No. 5-44 UNF0.1250-44 UNF440.57730.3123.1752.7992.550No. 6-40 UNF0.1380-40 UNF400.63500.3443.5053.0942.817No. 8-36 UNF0.1640-36 UNF360.70560.3824.1663.7083.401No. 10-32 UNF0.1900-32 UNF320.79380.4304.8264.3104.967No. 12-28 UNF0.2160-28 UNF280.90710.4915.4864.8974.5031.1.4英制粗牙螺紋P=25.4n H =0.866025P d=(d) 25.4 D=d H1=0.541266P d2=(d-0.649519/n) 25.4 D2=d2 d1=(d-1.082532/n) 25.4 D1=d1單位mm螺紋標(biāo)志(Reference)nPH1d(D)d2(D2)d1(D1)No. 1-64 UNC0.0730-64 UNC640.39690.2151.8541.5981.425No. 2-56 UNC0.0860-56 UNC560.45360.2462.1841.8901.694No. 3-48 UNC0.0990-48 UNC480.52920.2862.5152.1721.941No. 4-40 UNC0.1120-40 UNC400.63500.3442.8452.4332.156No. 5-40 UNC0.1250-40 UNC400.63500.3443.1752.7642.487No. 6-32 UNC0.1380-32 UNC320.79380.4303.5052.9902.647No. 8-32 UNC0.1640-32 UNC320.79380.4304.1663.6503.307No. 10-24 UNC0.1900-24 UNC241.05830.5734.8264.1383.680No. 12-24 UNC0.2160-24 UNC241.05830.5735.4864.7984.3411.2通孔孔徑螺釘連接零件上預(yù)制之通孔如圖示：通孔孔徑之尺寸如下表(單位mm)：螺釘公稱直徑通孔直徑(d)mm1級2級3級4級11.11.21.31.21.31.41.51.41.51.61.81.61.71.821.71.822.11.82.02.12.222.22.42.62.22.42.62.82.32.52.72.92.52.72.93.12.62.833.233.23.43.63.53.73.94.244.34.54.85.54.54.855.3655.35.55.86.566.46.677.81.3攻螺紋孔孔徑與螺釘相配的螺紋攻絲孔孔徑取決于外內(nèi)螺紋結(jié)合比之大小螺紋結(jié)合比(%)=(螺釘公稱直徑-攻絲孔直徑)(2螺紋結(jié)合高度) 100(%)1.3.1米制細牙螺紋(單位mm)螺紋標(biāo)志公稱直徑螺紋結(jié)合比(%)1009590858075706560M11.0000.780.790.810.820.830.840.850.860.87M1.11.1000.880.890.910.920.930.940.950.960.97M1.21.2000.980.991.011.021.031.041.051.061.07M1.41.4001.181.191.211.221.231.241.251.261.27M1.61.6001.381.391.411.421.431.441.451.461.47M1.81.8001.581.591.611.621.631.641.651.661.67M22.0001.731.741.761.771.781.801.811.821.84M2.22.2001.931.941.961.971.982.002.012.022.04M2.52.5002.122.142.162.182.202.222.242.252.27M33.0002.622.642.662.682.702.722.742.752.77M3.53.5003.123.143.163.183.203.223.243.253.27M44.0003.463.493.513.543.573.593.623.653.68M4.54.5003.963.994.014.044.074.094.124.154.18M55.0004.464.494.514.544.574.594.624.654.68M5.55.5004.964.995.015.045.075.095.125.155.18M66.0005.195.235.275.315.355.395.435.475.511.3.2米制粗牙螺紋(單位mm)螺紋標(biāo)志公稱直徑1009590858075706560M11.0000.730.740.760.770.780.800.810.820.84M1.11.1000.830.840.860.870.880.900.910.920.94M1.21.2000.930.940.960.970.981.001.011.021.04M1.41.4001.081.091.111.121.141.161.171.191.21M1.61.6001.221.241.261.281.301.321.331.351.37M1.81.8001.421.441.461.481.501.521.531.551.57M22.0001.571.591.611.631.651.681.701.721.74M2.22.2001.711.741.761.791.811.831.861.881.91M2.52.5002.012.042.062.092.112.132.162.182.21M3*0.53.0002.462.492.512.542.572.592.622.652.68M3.53.5002.852.882.922.952.983.013.053.083.11M4*0.74.0003.243.283.323.363.393.433.473.513.55M4.54.5003.693.733.773.813.853.893.933.974.01M5*0.85.0004.134.184.224.264.314.354.394.444.48M66.0004.924.975.035.085.135.195.245.305.351.3.3英制細牙螺紋(單位mm)螺紋標(biāo)志公稱直徑1009590858075706560No. 0-80 UNF1.5241.181.201.211.231.251.271.281.301.32No. 1-72 UNF1.8541.471.491.511.531.551.571.591.611.62No. 2-64 UNF2.1841.751.781.801.821.841.861.881.901.93No. 3-56 UNF2.5152.022.052.072.102.122.152.172.202.22No. 4-48 UNF2.8452.272.302.332.362.392.422.442.472.50No. 5-44 UNF3.1752.552.582.612.642.682.712.742.772.80No. 6-40 UNF3.5052.822.852.892.922.962.993.023.063.09No. 8-36 UNF4.1663.403.443.483.523.553.593.633.673.71No. 10-32 UNF4.8263.974.014.054.104.144.184.224.274.31No. 12-28 UNF5.4864.504.554.604.654.704.754.804.854.901.3.4英制粗牙螺紋(單位mm)螺紋標(biāo)志公稱直徑1009590858075706560No. 1-64 UNC1.8541.421.451.471.491.511.531.551.571.60No. 2-56 UNC2.1841.691.721.741.771.791.821.841.861.89No. 3-48 UNC2.5151.941.972.002.032.062.092.112.142.17No. 4-40 UNC2.8452.162.192.232.262.302.332.362.402.43No. 5-40 UNC3.1752.492.522.562.592.632.662.692.732.76No. 6-32 UNC3.5052.652.692.732.772.822.862.902.952.99No. 8-32 UNC4.1663.313.353.393.443.483.523.563.613.65No. 10-24 UNC4.8263.683.743.793.853.913.974.024.084.14No. 12-24 UNC5.4864.344.404.454.514.574.634.684.744.801.3.5板材上孔與板邊間距(對所有螺釘適用)板材上螺紋孔與板邊間距如圖要求b2t (b為孔與板邊的距離，t為板材厚度)1.4 配合尺寸同種規(guī)格的螺釘需與同種規(guī)格螺紋的螺母或與預(yù)攻同規(guī)格螺紋孔的鋼板配合如對M3的螺釘需與M3的螺母相配合，或者與在鋼板上攻出M3的螺紋孔相配合1.5 機械性能(包括材質(zhì)與熱處理)一般用C0.20%的低碳鋼制造，拉伸強度要求不小于330MPa；硬度不小于95HV(90HB或52HRB)；屈服強度不小于190MPa；延伸率不小于25%部分螺釘拉力如下表：螺紋標(biāo)志M1.6M2M2.2M2.5M3M3.5M4M5M6最小拉力(N)4206206801120166022402900469066301.6 鋼板厚度(取決于螺釘與內(nèi)螺紋的結(jié)合長度，鋼板厚度應(yīng)大于實際螺紋要求之旋合長度，單位mm)螺紋標(biāo)志旋合長度M10.61.7M1.10.61.7M1.20.61.7M1.40.72M1.60.82.6M1.80.82.6M21.03M2.21.33.8M2.51.33.8M31.54.5M3.51.75M426M4.52.26.7M52.27.5M639M10.20.51.4M1.10.20.51.4M1.20.20.51.4M1.40.20.51.4M1.60.20.51.5M1.80.20.51.5M20.250.61.9M2.20.250.61.9M2.50.350.82.6M30.3513M3.50.3513M40.51.54.5M4.50.51.54.5M50.51.54.5M5.50.51.54.5M60.752.47.1 注：對薄材，鋼板厚度至少應(yīng)大于23個螺距1.7 特殊螺釘1.7.1 自攻螺釘1.7.1.1 硬化層深度一般應(yīng)進行表面硬化處理表面滲碳或碳氮共滲層深度如下表(單位mm)：螺紋標(biāo)志硬化層深度MinMax1-64 2-56 3-480.040.104-40 5-40 6-320.050.188-32 10-24 12-240.100.231.7.1.2 硬度表面滲碳或碳氮共滲處理后硬度之一般要求：表面硬度不小于45HRC 或450 HV芯部硬度2640HRC 270390 HV1.7.1.3 尺寸 自攻螺釘截面應(yīng)為弧形三角形，如圖(L為導(dǎo)引長度，a為收尾長度)C、D值如下表 (單位inch)螺紋標(biāo)志CDMaxMinMaxMin00-900.04810.04610.04590.04390-800.06130.05930.05880.05681-640.07450.07250.07100.06902-560.08750.08400.08400.08053-480.10100.09750.09700.09354-400.11450.11150.10950.10605-400.12750.12400.12250.11906-320.14100.13600.13500.13008-320.16700.16200.16100.156010-240.19400.18900.18500.180010-320.19300.18800.18700.182012-240.22000.21500.21100.2060對螺紋長度大于1/6inch，L應(yīng)為23個螺距；對螺紋長度小于1/6inch，L應(yīng)為12個螺距對螺紋收尾長度應(yīng)小于1個螺距1.7.1.4 工作扭力對不同厚度鋼板及預(yù)制孔，自攻螺釘之工作扭力如下表(單位 lbfinch)：螺紋標(biāo)志鋼板厚(inch)孔徑(inch)攻牙扭力第一次拆卸扭力攻螺紋后安裝扭力破壞扭力2-560.04690.07540.5112670.06250.07640.51128100.09380.07950.511211143-480.06250.0876123414150.09380.0897123515160.12500.0907124615184-400.03120.098612238110.06250.1029123415180.09380.10211123422275-400.06250.11112234522290.09380.11318344734410.12500.11620456838466-320.06250.12014344725300.09380.12020356935450.12500.12522466939458-320.09380.1473057101365750.12500.1504547111475850.18750.150458111620759510-240.09380.1723558141865800.12500.1724558141880900.18750.17255913172210011510-320.09380.17335913111480950.12500.1775091312161001200.18750.177701216192511514012-240.12500.196659121924951150.18750.1997591321261351550.25000.20385101421261501701.7.1.5結(jié)合比(%)與預(yù)沖孔呎寸(單位 inch)關(guān)系如表所示：結(jié)合比(%)100959085807570656055502-560.07440.07500.07560.07610.07670.07730.07790.07850.07900.07960.08023-480.08550.08610.08680.08750.08820.08880.08950.09020.09090.09160.09224-400.09580.09660.09740.09820.09900.09980.10060.10140.10230.10310.10395-400.10880.10960.11040.11120.11200.11280.11360.11440.11530.11610.11696-320.11770.11870.11970.12070.12180.12280.12380.12480.12580.12680.12788-320.14370.14470.14570.14670.14780.14880.14980.15080.15180.15280.153810-240.16290.16430.16560.16700.16830.16970.17100.17240.17380.17510.176510-320.16970.17070.17170.17270.17380.17480.17