以汽车焊接夹具设计中使用的气缸为例，提出利用MDT建立参数化零件模型。
This paper introduces a way to draw different type cylinder in designing automobile welding jig.
重点描述定位结构规范化，制定非标设计设计规范，缩短汽车焊接夹具设计周期，降低设计成本。
Especially for describing structure of orientation standardization, establish nonstandard of design into standardization, in order to shorten period of auto welding jigs design, reduce design cost.
分析汽车车身焊接夹具三种典型运动机构的特点及其适用范围，提出实用汽车焊接夹具参数库的建立及设计标准化思路。
It analyzes the character and application scope of motion mechanism for three typical body welding jig, presents foundation method for practical welding jig library and standardize design idea.
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