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镶块是冲压模具的基本结构,与其他部件之间通过销钉定位、螺钉紧固的方式进行装配。螺钉与销钉设计简单,但对设计质量和效率要求比较高。因此,提出了一种基于模具镶块结构的螺钉与销钉自适应快速设计算法。根据镶块的结构形状和大小,按照螺钉和销钉的孔距和边距要求,自动进行孔位布置,生成系列位置圆,且可以对圆的排布进行编辑和调整,并调用相应的螺钉和销钉标准件进行装配。该算法可实现在非平面复杂镶块上设计螺钉和销钉孔,而且还能依据镶块紧固厚度自适应选择相应螺钉和销钉规格。为了实现自动化设计,将该算法无缝集成到NX软件平台,开发了一套螺钉与销钉的自适应设计与装配系统。实例表明,自适应设计与装配可以显著提高模具镶块中螺钉与销钉的设计质量和效率。
Insert block is the basic structure of stamping die, and other components through the pin positioning, screw fastening assembly. Screw and pin design is simple, but the design quality and efficiency requirements are relatively high. Therefore, an adaptive rapid design method of screw and pin based on the mold insert structure is proposed. According to the structure of the insert shape and size, according to the screw and pin pitch and margin requirements, automatic placement of holes to generate a series of location circle, and the arrangement of the circle can be edited and adjusted, and call the appropriate screws and Pin standard parts for assembly. The algorithm allows the design of non-planar intricate inserts on the screw and pin holes, but also according to insert the thickness of the adaptive choice of the appropriate screw and pin specifications. In order to automate the design, the algorithm is seamlessly integrated into the NX software platform and an adaptive design and assembly system for screws and pins has been developed. The examples show that adaptive design and assembly can significantly improve the design quality and efficiency of the screws and pins in the mold inserts.