1、28 Q 飞中华人民共和国第三机械工业部部标准通孔用套式机用饺刀L /且铠且侈l圆/ 8f一/ - 81_飞赳甲D=2580mm 7 、=可枝在租费厅4伟事事记蝇A -A 标记示例:D =42mm的D级精绞刀1231 420 ,.一一一._.! HB2292-76 i代替H51231-Ql, Q5 ;蛐?mi-色1 ,苟面h其余寸5飞可电JB2T 3-S 第三机械工业部发布国曹松陵机械厂提出1 978年1月1日实施孔加工工具部标准修订组起草HB 2292一76共6P1第2J可mm 表1D 基本J, 寸d b K f 1 盘内L D公悻偏差-1d r i!公样寸嗣差I , R 凡直、垂守偏差+
2、O. 1 z !尺() 十o. 1 尺(D,)25 1. 1 26 23 13 14 6 4.2 。.8十0.227 55 1. 2 28 32 十0.0192. 10 十O.16 30 32 28 16 18 7 .2 I 1. 3 10 34 6 3G 斗。.5 36 1. 4 37 36 32 1臼2 8.5 6.2 1.2 lB 1. 5 40 7 20 42 12 卜-一+0.3 3 44 1.6 1+0.20 4.5 +0.023 40 :38 22 24 28 9.5 7.2 12 16 1. 7 47 l5 48 1. 8 50 1 1 52 45 46 27 29 30 10
3、.5 8 8.2 1. 9 55 58 2.0 14 +0.6 60 62 50 G4 16 6;) 3 12 11). 2 2. 1 0.1 68 十0.027+0.24 2 2.2 70 25 8 72 4 16 75 2.3 55 68 10 40 18 13 12. 2 78 0.5 10 80 2.4 29 共6页第3页HB 2292-76 rnm 表2D 应Jfl 只f D、G、Gb,Gc,Gd和D,描粗桂刀D 提精较刀D |果D d, 果用用新钱刀费;钱月公非凡才jij; j, 量大|偏差磨损植限标记最九一-磨损极限大偏差125 2.940 24.912 25 ,018 2-i,
4、 9g 26 25.940 25.912 26 ,018 25.005 27 26.940 -0.014 26.012 27 ,08 0.008 i 26.99! 28 27.940 27.臼1228 ,018 27.99 30 一|29.940 29.912 30.018 29.9由532 31 , 930 31.896 32.022 31 .904 34 38 , 9:W 33.896 31. 022 83.9j 35 3d.930 34.896 35.022 34.臼自4DJJ阳、0.01036 35.930 35.896 36.022 35.994 37 30.930 36.8臼637
5、.022 :i6.994 38 37.930 37.8臼638.D22 37.99.1 40 39.930 :9 .896 40.022 39. fl94 -0.017 1- 0.009 42 41.9:lO 41.896 42.022 41.9自444 43.030 43.896 4.j , 022 43.994 45 44.930 44.896 45.022 14.994 46 43.930 45.896 .6.022 .15.991 47 40.930 .16.896 4i .022 46.904 48 47.930 47.8白。48.22 17.901 50 49.930 40.896
6、 50.022 40 , 004 DM主-0.OL252 51. 920 51.870 52.024 5 1. 903 55 54.920 54.870 55.024 54.四9358 57.920 57.870 58.024 57.903 60 50 , 920 50.870 60.024 i.g03 82 61. 920 61.870 62 , 024 61.993 65 64 , 920 64.870 65.024 04.993 0.025 0.010 D实际0.01568 67.自2067.870 68.024 67.9日370 69.920 69.870 70.024 69.993
7、72 71. 920 71.870 72.024 71.083 75 74.920 74.870 75.024 74.093 78 77 . 920 77 .870 78.024 77.093 80 79.920 70 ,870 80.024 79.003 30 HB 2292町16共ti_(第4Jlmm 表3D 应用尺寸公D 辑精接刀D, 墩精钱刀口d,自R精校刀称D D D d, 5民用采用采用尺刀l磨损新较刀新镜刀磨损新校磨损寸缸记最大偏差极限辑记最大1偏是植限际记1最大偏差极限25 陆5.03625.110 24- .995 125.250! :2 4- .995 b剧526 26.1
8、10 25.995 26 , 250, 26.135 27 ,27 , 036 -0.015 26.995 27.110 -0.023 26.995 127ml 0.02 27.135 28 128.036 :27.995 28. 1l0 27.995 28.250 28.135 30 30.036 |皿四530.110 29.9951 30.250 30.135 32 32.040 13 1. 994 32 , 140 31.994 32.310 32.164 34 34.04队33.994 34.140 33.994 34.310 34噜16435 :I 5.040! 34.994 35.
9、140 34.994 35.3101 35.164 36 36.040 35 , 994 36.140 35.994 36.310 36.164 D,际-0.01037 37.040 36.994 37.140 13日.99437.310 37.164. 38 37.994 38.140 37.994 38.310 38.164 40 40.040 0.017139.994 40.140 0.028 39.994 40.310 一0.02840.164 42 4且.0,10:14 1. 994 42.140 41 .994 !42.310 42.164 d4 44.040 |此剧4|44.14
10、0 43.994 44.310 44.164 45 45. 1.tO i44.994 45.310 145.164 46 !46.040 45.904 46.140 4,), 994 46.310 -1 6.l4 47 Ll 7.0.i O 46.994 47 , 140 46 , 904 47.310 48 48.0401 :47.094 d8.140 47.994 48.310 4日.16450.31叫50 50.040j 49.994 :;0.140 i49.994 50. 164 Dif:J; -O.OI2 b1.903 52.3f)01 52 52.04.8 52 , 160 51.
11、9日355 乃5,04.854.993 55 , 160 54,9日355.360 551 02 58 58.04日f)7.993 58.160 57.903 58.360 58. 1自己60 ;60.048 5日.90360.160 fJ9.9日360.360 60. J; 62 iG2.018 61.903 62. 160 6 1. 903 62.360 62.193 65 65.048 0.020 64.893 55.160 64.903 自5.36065.1G3 -0.033 0.033 68 68.048 67.003 68.160 67.99S 68.:360 68.193 D;:
12、1;际-0.01570 70.048 6日.00370.160 69.993 170.360 70.193 72 72.048 71. 993 72. 160! 71.993 72.360 72.193 75 75.048 74 , 09:1 7吕.1UO74.003 7罚.36075.19:l 78 78.048 77.0日378.160 177 . 99:3 78.360 78.101 HO 且0.04879.903 80.160 79.093 80.360 80.193 31 共6页第5页HB 2292一76mm表4应用尺寸o , Gn咀梧按刀Gb级精按刀采用D 采用I0 d, 新接刀新
13、校刀l 公有:尺寸磨损极限一一磨损植限|书;记最大l偏差标记最大|偏差l 0.008 0.008 D实际-O.OlO-0.009 。009D实际-0.012l5 3g .953 i_ji_I. 08t i -0.010 0.00 D实际0.015mm 表5院用凡飞fD Gc 蛙精技Jl Gd tJ 精钱刀主在归j! D D d 一-i茸m 公称尺牛|新应刀新镜刀标1磨J虱脏惧和示己|磨损植限放)(1偏#i二最大|偏差。0080.008 D问0.0100.000 0.009 32 HB 2292-76 共6页第6页盯1口1表白1.:2 用凡寸D 口s提精钱刀D 级精较刀是mlD 采用D d, 公
14、事部尺寸l新接刀精接刀磨1M极限|磨损植限大|偏tj 己大|偏标id最是最差O. 11 0.017 E实际0.0100.013 一0.020D实际0.0120.015 0.024 D食际0.0151. 材抖,Wl8Cr4V钢,按YBI2-59.2. 硬度,HRC63白白。3. 粗镀刀、4级反低于4级精度的精钱刀前后面和刃带光洁度允许为78.4. 在祖钱刀上作标记时不注明配合及精度等级。5. 切削锥后允许带有圆柱形导向部分,其长度为t,-.I.5mmo6 工作部分各外圆对钱刀锥手L轴线的径向跳动,2级和3级精度的精较刀不大于O.Olmm;粗饺刀、4级和低于4级精度的精钱刀丰大于O.02mm。7 键槽对锥孔轴线的不对称皮革大于O.08mrn()8. 较刀的圆弧糟形允许用单角镜刀加工,D=28,.,50mm和D二t30.-80mm的用750xRloJ单角镜刀,D=25-27mm的用80xRI的单角镜刀.D=52.-58mm的用70x R 1酌单角锐刀。9 与刀抨HB2338-76组击使用。10 刃带允许酬磨后角00.20。11 技术条件按H2294-76.33