The Design System For Work Part Of Auto-body Panel Trimming And Piercing Die

The trimming and piercing process is the key process to the manufacturing of auto-body panel. Usually it is done after the drawing process, to cut the addendum and other scrap, and to punch the component holes and other holes for manufacturing. The trimming and piercing process is very important to the auto-body component, it decides the precision of the auto-body component. The design quality of trimming and piercing die decides the quality of auto-body component directly.The design of trimming and piercing die contains both the design of work parts and assistant parts. The design of assistant parts mainly contains upper die base, down die base, guide board, guide pillars and bushes, discharge of waste and so on. The design of work parts mainly contains scrap cutter, die plate insert, press line, pressing block and punching die. The design of work parts is the key to the design of the trimming and piercing die.The characteristic of the design of trimming and piercing die, especially the design characteristic, design experience, design rules and industry standard of the work parts is deeply researched in the paper. The author presents the design framework of the trimming and piercing die, and the uniform program process of the sub-modules and the key technology. And the author designs the intelligent software design system for work part of auto-body panel trimming and piercing die, which contains five sub-modules: scrap cutter module, die plate insert module, press line module, pressing block module and the punching die module. In addition, the system contains the associate tools software design toolkit, which is made up of the bolt, screw add tool, the locating ring add tool and the reinforcing add tool.