第二節(jié) 冷沖壓模具常用零件標(biāo)準(zhǔn)

1、冷沖壓模具常用零件標(biāo)準(zhǔn)一、彈簧與橡膠的選用1橡膠橡膠允許承受的載荷較大，占據(jù)的空間較小，安裝調(diào)整比較靈活方便，而且成本低，是中小型冷沖模彈性卸料、頂件及壓邊的常用彈性元件。選用橡膠時(shí)，應(yīng)主要確定其自由高度、預(yù)壓縮量及截面積。其計(jì)算公式及步驟可由表1確定。表1 卸料橡膠計(jì)算公式序號(hào)計(jì)算步驟及計(jì)算公式說(shuō) 明1確定自由高度沖模的工作行程（mm）。對(duì)沖裁模而言，預(yù)留的修磨量。一般取510mm2確定和橡膠的預(yù)壓縮量沖模裝配好以后橡膠的高度3確定橡膠的橫截面積（mm2）所需卸料力（N）橡膠在預(yù)壓縮狀態(tài)下的單位壓力：約0.260.5MPa2彈簧彈簧常用圓柱螺旋壓縮彈簧和碟形彈簧可按表2至表4選用。表2 圓柱

2、螺旋壓縮彈簧dDtPsDxmaxDTminH0nPFSF1F2L0.541.7511.42.95.1126.51.487.701.546.161072212.50.77214.82.9611.81822614.50.66517.23.4413.820763.167.624.57.51440.71410.72.148.56113226.50.44017.33.4613.81600.862.3428.74.27.8134.54.166.911.385.53123207.52.5011.52.309.2117932*12.51.5019.23.8415.427338*14.51.2922.34.46

3、17.831183.5321.66.29.8184.51.7612.32.469.841631.030*7.51.0620.54.1016.42393.1240.9610205.53.5111.72.349.3618930*8.52.2718.03.6014.1264104.3132.78122042.4713.32.6610.6189306.51.5221.54.3017.226712243.51.6316.73.3413.4207357.51.3224.84.9619.82981.6103551267.412.6245.511.810.72.148.56236358.57.6116.63.

4、3213.3330124.411058.415.62249.3611.22.248.96226326.55.7618.33.6614.6320166.5978.812.419.63043.9520.04.0016.0302405.52.8727.55.5022.0376486.52.4332.46.4825.942760*8.51.8642.48.4833.952870*10.51.5052.410.541.96282.0124.11192816244.520.39.481.907.58245357.512.215.83.1612.6358165.7414412202849.4615.03.0

5、012.0302385.57.0120.64.1216.5377487.55.1428.15.6222.5478558.54.5431.86.3625.452865*10.53.6739.37.8631.472975*12.53.0946.89.3637.4729186.741281422557.53.6135.57.1028.4537658.53.1940.38.0632.254975*10.52.5849.89.9639.8707207.851151525404.54.3926.35.26210408485.53.5932.264425.8471657.52.6343.98.7835.15

6、9775*8.52.3249.79.9439.866090*10.51.8861.412.349.1785dDtPsDxmaxDTminH0nPFSF1F2L2.0207.851151525120*14.51.3684.817.067.810372.5165.4027311.520.5304.520.913.02.6010.4327406.514.518.83.7615.0427487.512.621.54.3417.447865*10.58.9730.46.0824.362875*12.57.5336.27.2429.0729227.981.9816.527.53849.0621.94.38

7、17.5415505.56.5930.16.0224.1518586.55.5735.77.1228.5587657.54.8341.18.2232.9657758.54.2646.59.3037.272690*10.53.4557.511.546.08643.0165.334541121457.526.017.43.4813.9478528.523.019.83.9615.8528185.94403132365*10.518.624.44.8819.562875*12.515.629.15.8223.3729354.530.513.22.6410.6368456.521.119.13.821

8、5.3481588.516.125.05.0020.059470*10.513.130.96.1824.77073.5185.9461912.523.532463.59.751.957.80340405.546.213.42.6810.7424527.533.918.33.6614.6537206.5155713.526.5384.541.213.52.7010.8408506.528.519.63.9215.7534587.524.722.64.5218.159775*10.517.631.66.3225.3785227.1450615.528.538434.814.62.9211.7415

9、485.525.320.24.0016.0518627.518.627.35.4621.8657708.516.430.96.1824.77264.0206.638311327455.557.514.52.9011.6471587.542.519.73.9415.8597658.537.222.44.4817.966080*10.530.127.65.5222.1785227.187561529485.557.517.53.5014.0518556.548.620.74.1416.6587708.537.227.15.4221.772685*10.530.133.46.6826.7864258

10、.116651832454.536.018.53.7014.8511555.529.422.64.5218.1589707.521.630.96.1824.7746dDtPsDxmaxDTminH0nPFSF1F2L4.0258.116651832808.519.035.07.0028.0825309.925542337857.512.544.48.8835.589595*8.511.050.310.140.2990115*10.58.9262.212.449.81178140*12.57.4974.014.859.213674.5258.1694717.532.542464.814.62.9

11、211.7471555.547.120.14.0216.1589606.539.923.84.7519.0668707.534.627.45.4821.9746309.7678922.537.5453.542.918.43.6814.7518524.533.323.74.7418.9613655.527.328.95.7923.2707807.520.239.57.8931.68955.0258.2912991733555.571.818.13.6214.5589656.560.821.44.2817.1668707.552.724.74.9319.7746808.546.528.05.592

12、2.4825309.741083223850457.118.93.7915.2565655.541.626.15.2120.8707756.535.230.86.1624.6801857.530.535.57.1028.48953511.59282644604.532.029.05.8023.2715755.526.235.57.0928.4825856.522.141.98.3833.5935957.519.248.49.6738.71045注：1. 材料：65Mn、60Si2Mn，熱處理硬度4048HRC，表面磷化處理。2. 帶“*”的系細(xì)長(zhǎng)比大于3.7，應(yīng)考慮設(shè)置心軸或套筒。3. 標(biāo)準(zhǔn)：

13、GB/T2089-1994。表3 碟形彈簧類別Ddt(t)h0H0PfH0fOM、QKg/1000件f0.75H0NN/mm2N/mm2系列A 1189.210.41.412500.31.1-117013001.48022512.21.50.552.0529100.410.64-121014104.40031.516.31.750.72.4539000.531.92-119013107.8435.518.320.82.851900.62.2-1210133011.404020.42.250.93.1565400.682.47-1210134016.404522.42.513.577200.75

14、2.75-1150130023.505025.431.14.1120000.833.27-1250143034.30系列B 1189.20.70.51.25720.380.82-104011301.0302512.20.90.71.68680.531.07-93810302.640231.516.31.250.92.1519200.681.47-109011905.60035.518.31.2512.2517000.751.5-99410707.1304020.41.51.152.6526200.861.79-1020113010.954522.41.751.33.0536600.982.07

15、-1050115016.405025.421.43.447601.052.35-1060114022.90系列C 1189.20.450.61.052140.450.6-78911100.6612512.20.70.91.66010.680.92-93612702.06031.516.30.81.051.856870.791.06-81011303.58035.518.30.91.152.058310.861.19-77910805.1404020.411.32.310200.981.32-77210707.3024522.41.251.62.8518901.21.65-920125011.7

16、05022.41.251.62.8515501.21.65-754104014.30注：1. 材料：60Si2MnA或50CrVA，硬度4252HRC。 2. 摘自GB/T1972-1992。表4 碟形彈簧的主要計(jì)算公式計(jì)算項(xiàng)目對(duì)合式安裝（圖a）復(fù)合式安裝（圖b）整個(gè)彈簧的允許負(fù)荷（N）一個(gè)彈簧的最大允許變形量（mm）整個(gè)彈簧的最大允許壓縮量（mm）整個(gè)彈簧的預(yù)壓縮量（mm）彈簧的工作行程（mm）保證規(guī)定行程的彈簧個(gè)數(shù)（個(gè)）彈簧自由長(zhǎng)度注：表中一個(gè)彈簧在壓縮量等于0.75h0時(shí)的最大允許負(fù)荷； 彈簧的極限行程（mm）； 裝置中一組彈簧的總數(shù)； 組合彈簧中每疊的彈簧數(shù)（圖b中）； 一個(gè)彈簧的高度

17、（mm）； 彈簧板厚度（mm），。二、模具常用螺釘與銷釘冷沖模零件的連接與緊固常用圓柱頭內(nèi)六角螺釘和沉頭螺釘（表5和表6），零件的定位常用圓柱銷（表7）。表5 圓柱頭內(nèi)六角螺釘 螺紋M4M5M6M8M10M12M16M20螺距0.70.811.251.51.7522.52022242832364452max3)7.008.5010.0013.0016.0018.0024.0030.004)7.228.7210.2213.2716.2718.2724.3330.33min6.788.289.7812.7315.7317.7323.6729.67max4.75.76.89.211.213.717.

18、722.4Max4.005.006.008.0010.0012.0016.0020.00min3.824.825.827.789.7811.7315.7319.67min3.444.585.726.869.1511.431619.44max0.60.60.681.021.021.451.452.04螺紋M4M5M6M8M10M12M16M20max4.005.006.08.0010.0012.0016.0020.00min3.824.825.77.649.6411.5715.5719.48rmin0.20.20.250.40.40.60.60.8S公稱456810121620max6)3.07

19、14.0845.0846.0958.11510.11514.14217.237)3.0804.0955.1406.1408.17510.17514.212min3.0204.0205.0206.0208.02510.02514.03217.05min22.53456810max0.40.50.60.811.21.62min6.538.039.3812.3315.3317.2323.1728.87min1.41.92.33.344.86.88.6L(長(zhǎng)度系列)6,8,10,12,16,20,25,30,35,408, 10,12,16,20,25,30,35,40,455010,12,16,20

20、,25,30,35,40,45,5055,6012,16,20,25,30,35,40,4550,55,60,6570,8016,20,25,30,35,40,45,5055,6065,70,80,90,10020,25,30,35,40,4550,55,60,6570,8090,100,110,12025,30,35,40,45,5055,6065,70,80,90,100,110,120,130,140,150,16025,30,35,40,45,5055,6065,70,80,90,100,110,120,130,140,150,160,180,200注：1. 標(biāo)準(zhǔn)：GB/T70.1-2

21、000 2. 材料：35鋼。表6開(kāi)槽沉頭螺釘螺紋規(guī)格dM4M5M6M8M10螺距0.70.811.251.5aMax1.41.622.53bmin38理論值max9.410.412.617.320實(shí)際值公稱=max8.409.3011.3015.8018.30min8.048.9410.8715.3717.78公稱=max2.72.73.34.655公稱1.21.21.622.5max1.511.511.912.312.81min1.261.261.662.062.56max11.31.522.5max1.31.41.62.32.6min1.01.11.21.82.0max1.7522.53.23.8螺紋規(guī)格dM4M5M6M8M10L(長(zhǎng)度系列)6,8,10,12,16,20,25,30,35,408, 10，12,16,20,25,30,35,40,45，508，10,12,16,20,25,30,35,40,45,50，6010，12,16,20,25,30,35