支承套零件的钻床铣床夹具机械CAD图纸设计.doc

支承套零件的钻床铣床夹具设计 1 摘要本文是对支承套零件的加工工艺规程进行设计,并针对其中某一道工序进行基于液压的专用夹具设计,并进行了另一工序的普通夹具设计。支承套零件作为套类零件,其主要加工表面是平面及孔。按照机械加工工艺要求,遵循先面后孔的原则,并将孔与平面的加工明确划分成粗加工和精加工阶段以保证加工精度。基准选择以支承套大外圆端面作为粗基准,以支承套大外圆作为精基准,确定了其加工的工艺路线和加工中所需要的各种工艺参数。并按要求对其中一道工序进行了基于液压夹紧的专用夹具设计,在设计中计算了此道工序所受的切削力及切削力矩,进而确定了液压缸的负载,选定整个液压系统的压力, 从而确定了液压缸的各参数,绘制了液压夹紧的专用夹具总图。整个加工过程均选用万能机床。关键词支承套;加工工艺;液压;专用夹具 2 A bstract This article is carries on the design of the supporting ponents machine process, and the clamp designed based on the hydraulic pressure which aim ed at some working pro cess, and has carried on another working procedure ordinary jig design. The supporting ponents take the boom trestle ponents, its main processing surface is the plane and the hole. According to the machine-finishing technological requirement, after following the first surface, the hole principle, and is clear about the hole and the plane processing divides the rough machining and the precision work stage guarantees the working accuracy. The datum choice takes the thick datum by the support big outer annulus end surface, takes the fine datum by the support big outer annulus end surface with two craft holes, had determined in its processing's craft route and the processing needs each technological parameter. And according to request toa working procedure has carried on based on the hydraulic pressure clamp unit clamp desig n. Entire processing process chooses all-purpose machine tool. Key words : supporting sleeve ; processing technic ; special fixture ; hydraulic pressure 充值下载即送 CAD 图纸, QQ 36396305 3 目录摘要........................................................................................................................................... III ABSTRACT .................................................................................................................................. IV 目录................................................................................................................................................ V 1绪论........