设计简介
支架弯曲模设计
摘要（中文)
本模具设计题目为支架的弯曲,落料,冲孔复合模,此零件需三道工序完成.体现了复杂零件的设计要求,内容及方向.具有一定的设计意义,通过对该零件模具的设计进一步加强了设计者冲压模具设计的基础知识,为设计更复杂的冲压模做好了铺垫和吸取了更深该的经验.
本设计运用冲压模具设计与制造工艺基础知识,首先分析了端盖零件的外形,尺寸,精度要求,进行了工艺分析,考虑到此零件为圆形零件,对同轴度要求较高,因此采用复合模工艺方案.然后根据零件的外形尺寸计算毛坯总体尺寸,设计排样图及计算材料利用率及压力中心最后计算出工作部分尺寸,模具总体尺寸,总体尺寸包括工作零部件的结构设计,卸料装置的设计以及固定零件的设计与运用.
本模具的特点是推板在弹顶器,顶杆的作用下,处于最上位置,定位板固定坯料,上模部分下降,利用凸凹模和成形推板进行弯曲,上模继续下降,推动成形推板下降,此时由落料凹模,在成形推板内装有6根顶杆,开模时可使工件抬起,便于取件.
关键词:弯曲模 复合模 凸凹模
THE BENGDING DIE DESIGN
This mold design topic for the bending die, falls the material, the punch holes superposable die, this components need three working procedures to complete. Has manifested the complex components design request, the content and the direction. Has certain design significance, through further strengthened the elementary knowledge to this components mold design which the designer ramming mold designs, for designed more complex flushes the die to complete the upholstery and to absorb a deeper this experience.
This design utilization ramming mold design and the manufacture craft elementary knowledge, has first analyzed the end cover components contour, the size, the precision request, has carried on the craft analysis, considered this components are the circular components, is high to the proper alignment request, therefore uses the superposable die craft plan. Then the basis components external dimensions computation semifinished materials overall size, a design row of specimen map and the computation material use factor and the center of pressure last count is present at work makes the partial sizes, the mold overall size, the overall size including the work spare part structural design, the dumping device design as well as the fixed components design and the utilization.
This mold characteristic is the small end cover drawing, falls the material, the punch holes superposable die.
The formed push pedal goes against in the ball, under the roof bar function, is in on most the position, the nursery lives the semifinished materials, the top die part drops, the use convex-concave mold and the formed push pedal carry on the drawing and press the shape, the top die continue to drop, impel the formed push pedal to drop, this time by falls the material concave mold, the convex-concave mold carries on falls the material, then flushes the bottom hole. When formed push pedal and dead plate contact, then carries on the reshaping. Is loaded with 6 roof bars in the formed push pedal, operates when the mold may cause the work piece to lift, is advantageous for takes.
Key words: The bending die Superposable die
Falls the material convex-concave mold
