摘  要

节气阀体的加工工艺及夹具的设计，其中包括零件加工的工艺设计，工序的设计，以及专用夹具的设计一共三部分。众所皆知，我们在工艺设计中要必须首先去对零件进行仔细的分析，了解它的工艺，然后再设计出毛坯的结构，同时选择好零件的加工基准并设计出零件的工艺路线，接下来，我们要对零件的各个工步工序进行尺寸计算，主要是决定出每个工序的工艺装备和它的切削用量，再接着进行专用夹具的设计，对夹具的各个组成部件进行设计，比如定位元件，夹紧元件，引导元件，夹具体，机床的连接部件和其它的部件，同时我们要计算好夹具定位时产生的误差以及分析好夹具结构的好与坏，在以后的设计中要改进。
 
关键词为：切削用量，误差，工艺，夹紧，工序，定位，
Abstract

Shell parts processing technology and design of drilling jig design process design, including the parts processing process design and fixture three. In the process of design should first carries on the analysis to the components and parts of the process to understand the design of blank structure, and choose the good components the processing datum, designs the process routes of the parts; then the parts of each step of process dimension calculation, is the key to decide the craft equipment and the cutting dosage of each working procedure; design then the special jig, fixture for the various components of the design, such as the connecting part positioning device, clamping device, guide device, clamp and the machine tool and other components; the positioning error calculate fixture positioning, analysis of the rationality and deficiency of fixture structure, pay close attention to the improvement and design in later.
 
Keywords: process, process, cutting, clamping, positioning error
目  录