为了缩短新产品的开发周期,目前各大汽车公司新产品的设计研发过程均采用并行工程,即模具、检具、夹具的设计过程同时进行。为了保证整车的尺寸精度,减少基准变换误差引起的偏差,在车型尺寸开发的初始阶段,须设计出统一的基准定位策略,以保证模具、检具、夹具的基准一致。 In order to shorten the development cycle of new products, the current major automobile companies design and development of new products are used in parallel engineering, namely, molds, gages, fixture design process at the same time. In order to ensure the dimensional accuracy of the vehicle and reduce the deviation caused by the reference conversion error, a uniform reference positioning strategy should be designed in the initial stage of vehicle size development to ensure that the standards of the mold, the fixture and the fixture are consistent.