冲压模具-座椅支架冲压工艺分析及模具设计-说明书.doc

座椅支架冲压工艺分析及其模具设计 学生姓名：熊志远 班级：0781053 指导老师：罗海泉 摘要：本设计课题给定的是某摩托车座椅支架，形状简单，同时包括冲裁和弯曲两道工序，其中弯曲相对比较简单。在本次设计中关键的地方是合理的选择模具间隙，在模具的设计中间隙直接影响着冲裁件的质量，所以合适的间隙的选择应以工件断面质量、冲裁件精度、模具寿命和加工质量四项为依据，并且进行适当的分类。在模具设计部分重点在于凸、凹模的设计，它们都要先进行试模合格以后再热处理，因为它影响着冲裁件是否合格。 由于本零件属于大批量生产，而且制作精度要求不高，需要多工序冲成的小型零件。所以冲裁我选择了级进模，以便能满足制造要求的同时也增加了操作的安全性及减少模具和设备的数量，从而减少车间的占地面积。 由于本人水平有限，本论文中必然存在不少纰漏及错误之处，敬请评阅老师批评指正。 关键词：冲裁间隙 级进模 段面质量 模具寿命 指导老师签名： Chair support ramming craft analysis and its mold design Student name:xiong zhi yuan class:0781053 Supervisor:luohaiquan Abstract: This design topic assigns is some motorcycle chair support, the shapeis simple, Simultaneously includes falls the material and the curving two workingprocedures, curving relative quite is simple. In this design the essential place is the reasonable choice mold gap,the gap directly affects in the mold design is falling the materialquality, therefore the appropriate gap choice should take the workpiece cross section quality, fall the material precision, the moldlife and the processing quality four items as the basis, and carrieson the suitable classification. Partial key raised lies in, theconcave mold design in the mold design, they all will want theadvanced line of examination mold qualified later in the heattreatment, because it will affect is falling the material will bewhether qualified. Because this components belong to the mass production, moreover themanufacture precision request is not high, needs the small componentswhich the multi- working procedures flushes. Therefore the cut die hadme to choose the level to enter the mold, in order to could satisfythe manufacture request at the same time also to increase theoperation security and the reduced mold and the equipment quantity,thus reduced the workshop the area. Because myself level is limited, in the present paper inevitably