Tool and die makers make, repair and modify custom-made, prototype or special tools, dies, jigs, fixtures and gauges using various metals, alloys and plastics which require precise dimensions.

工具和模具制造商，使用各种金属，合金和塑料，修理和修改需要精确尺寸的定做，原型或专用工具，模具，工模，夹具和量具。

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Based on it, a prototype system is developed. The design process of a set of progressive die is finally presented as an example, to validate the system.

在此基础上，开发了模具协同设计原型系统，并以多工位级进模协同设计过程为例，对系统进行了验证。

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The virtual prototype model of indexing cam-roller chain drive system of die-cutting machine is constructed in the computer environment based on multi-body dynamics theory.

应用多体动力学理论，建立了包含分度凸轮-链系统的模切机步进系统虚拟样机模型。

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