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1、 c I | :1009null4873(2007) 02null0024null03null公差原则与配合件的可装配性分析曹义忠a, null 李妙珍b(石家庄职业技术学院 a.机电工程系; b.实训技术中心,河北石家庄null 050081)K null 1 :三种公差原则在一定条件下都可以满足配合件的可装配性.从制造成本a检验效率a假废品三个方面分析了三种公差原则在满足配合件的可装配性上的差异.当配合件仅要求可装配且无其他功能要求时,若进行尺寸设计,最适宜采用的公差原则是最大实体原则.1 o M :公差原则;配合件;可装配;直线度;检验;假废品 m s | : TG80 null nul
2、l null D S M : Anull null ) j 1 H , 5 a 5 (ER) K v L 8 5 (MMR), 5 L C K S . 5 B a d , q , 5 1 LC ,K v L 8 5 5 V L C , 5 B M a .L = , 5 & B . j ! 9 V , 4 a M a 5 , a4 _ r q E L l 1 Y .1null 5 q V 5 1 p 1 j 1 M , i s Y 1 1p 1.N 5 B H q / V q V . , 5 null25H7/ f6 V ,n m 1.I n K 4 ,d L = j K l K j dmin,
3、 L = j K v K j dmax, f / d L 1 l K l W # x min, N T s L G . null25H7/f6,K l W # x min=20 nullm, ( s ,d L 8) , 12 nullm, L 7) , 8nullm,K l W # x min l ,d L ) ,/ 6 , / .V _ Z A , ? H e ,9 ? ? , L Y _ ,_ r q .V L l Z A ,V ? C L l , , da= 24.97, L = 0. 009, 5 H q , L ,N l , V V A i d l , dfe = 24. 97 +
4、0. 009 =24.979 null 24.988,i Y V .V s V A , ? 1 p H q / , 5 V i aR .m 1null 5l :2006- 09- 08T e : l (1963- ),3 , F E ,F E da dmin. K v L8 5 . null25H7/ f6(n m 3)V / s ,K v L 8 / ,d L Kl W # ,| d L 8) ( 12), L 7) ( 8) K , d ) Kv L 8 H , d , Da= Dm= 25, D fe= 25-0.012= 24. 988; d = 24. 98, d = 24. 98+
5、0.008= 24.988,N H W # , ,V . d ) K l L 8 H , d , Da= Dl= 25. 021, dfe=25.021- (0.012+ 0. 021) = 24.988; , d =24.967, d= 24.967+ 0.008+ 0. 013= 24. 988,N HW # , ,V , d L 9 0. 033, L 9 0.021, / .V _ Z A , H e ,? ? , L Y _ ,_ r q .V L l Z A , V ? C L l ,y ? Y V Y ? d B l . , q V ,K aR 5 K v L 8 5 .m 3n
6、ull K v L 8 54null Y V 5 / q V s , Z , K v L 8 5 , / K ; _ r q Z , K v L 8 5 ,_ r q K ; L l Z , K v L 8 5 , ? E 3 L l . M t ? p , ? P 1 p , 4 M 5 .25 2 l : 5 q V s I D :1 null b . / M . : ,2001.2 null . / M. : ,2005.3 I : null Analysis of the assembling of tolerance principles and cooperating partsC
7、AO Yinullzhonga, null LI Miaonullzhenb(a. Department of ElectronicEngineering; b. Experiment and Training Center,Shijiazhuang VocationalTechnology Institute; Shijiazhuang,Hebei 050081, China)Abstract:This paper demonstrates threetoleranceprinciples that enable cooperating parts tobeassembled incerta
8、in conditions.It also analyses the discrepancies of thethree tolerance principles from aspects of manufacturnulling costs, examining efficiency and waste products.Key words: tolerance principles; cooperating parts; assembling; straightness; examination; false wasteproducts(上接第15页)A circularity appro
9、ach to the numerical control ofthe complex curvilinear machiningWU Huinullbo1, null YAN Zhinullbo1, null WANG Xiaonullling2(1. Electronics Engineering Department, Shijiazhuang Vocational Technology Institute, Shijiazhuang, Hebei 050082, China;2. Sinter Plant,Handan SteelGroup, Handan, Hebei056000, China)Abstract:There ar
