机械5

摘要 机床夹具设计之前，首先应分析零件图以及该零件所在部件或总成的装配图，掌握该零件在部件或总成中的位置，功用以及部件或总成对该零件提出的技术要求，明确零件的主要工作表面，以便在拟订工艺规程是采取措施予以保证。在机械加工过程中，采用机械加工的方法，改变毛坯的形状，尺寸，相互位置关系和边面质量，使其成为可完成某种使用要求的零件过程。在机床上加工工件时，为了是工件在该工序所加工的表面能达到规定的尺寸和位置公差要求，在开动机床进行加工之前，必须首先使工件占有一正确位置。机床夹具是机械加工工艺系统的一个重要组成部分。工件装夹是否准确，迅速，方便和可靠，将直接影响工件的加工质量，生产效率，制造成本和生产安全。在成批，大量生产中，工件装夹是通过机床夹具来实现的。 关键词:工艺;工序;切削用量;夹紧;定位。 Abstract Machi
ne Tool fixture desig
n, should first of all parts of the map a
nd parts of the compo
ne
nts or assembly assembly,master of the compo
ne
nts or parts i
n the assembly i
n the positi fu
nctio
n or
not, aswell as parts of the assembly of the tech requireme
nts of specific parts The mai
nwork surface to a poi
nt of order i
n the formulatio
n process is to take measures to guara
ntee. I
n the machi
ni
ng process, usi
ng the method of processi
ng machi
nery, the cha
nge i
n rough shape, size, locatio
n a
nd mutual-facequality, maki
ng it a requireme
nt to be completed usi
ng some parts of the process. I
n the processi
ng machi
ne parts, i
n order to be part of the process by processi
ng the surface ca
n achieve the required size a
nd locatio
n of tolera
nce requireme
nts, starti
ng i
n machi
ne for processi
ng before,we must first make a correct positio
n of theworkpiece possessio
n. Machi
ne Tool fixture mecha
nical processi
ng system is a
n importa
nt part. Workpiece clampi
ng the accuracy, rapid, co
nve
nie
nt a
nd reliable,will directly parts of the processi
ng quality, productivity, ma
nufacturi
ng costs a
nd productio
n safety. I
n bulk, mass productio
n,workpiece clampi
ng fixture through the machi
ne to achieve. Keywords:process;process;cutti
ngparameters;clampi
ng. 目录 1、零件的分析1 1.1零件的作用1 1.2零件的工艺分析1 1.3确定生产类型1 2、确定毛坯2 2.1、确定毛坯种类： 2 2.2、确定铸件加工余量及形状： 2 3、工艺规程设计3 3.1选择定位基准： 3 3.2制定工艺路线3 3.3机械加工余量、工序尺寸及公差的确定5 4、夹具设计21 总结24 参考文献25