共查询到19条相似文献,搜索用时 46 毫秒
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通过对零件的加工工艺分析,优化排样设计,使模具能在高速冲压条件下加工;介绍了级进模模具结构及其主要特点、关键部件的设计制造, 相似文献
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分析了打火机防风罩的结构特点及其冲压成形技术难点,叙述了打火机风防风罩级进模冲压工艺及排样,介绍了模具结构设计和制造要点,可为同类零件级进模设计提供参考。 相似文献
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分析了联接板的三种工艺方案,单工序、复合工序及连续工序,采用冲孔落料连续工艺,能提高工件的尺寸精度及生产率,降低生产成本。介绍了联接板毛坯的排样图、冲压力及压力中心的工艺计算,设计了联接板冲孔-落料级进模的模具结构。 相似文献
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本文主要介绍了拉深件的设计思路和加工过程。化设计过程中,首先对该零件进行工艺分析,了解零件材料的特性、用途等;分析模具的结构,根据摸具的基本结构选取模架,校核各种相关的工艺参数,设计模具的总体结构和零部件.以及选用冲压设备。 相似文献
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运用UGNX中IPDW级进模模块,对显卡支架零件进行了多工位级进模设计。与传统的CAD设计方法相比,工艺智能化仿真程度高,不需要再做手板进行模拟仿真,能够及时地发现设计错误并进行产品和模具设计的修改。这种数字化设计方法大大地提高了设计效率,是一项应该大力推广采用的新技术。 相似文献
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介绍了一种组合型可调式弯曲模的结构。探讨了工作零件的设计和安装,同时也讨论了其凸、凹模调整垫片的设计方法和零件折弯成型过程。模具结构简单,具有实用价值。 相似文献
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在一种零件上设计有许多对称相同的弯曲结构件,采用斜楔式顺序弯曲模一次弯曲成形。侧弯曲凸模在侧弯曲凸模凸轮压块的楔面作用下顺序进入凹模冲压成型。然后在凸轮滑动块拉杆的作用下带动侧弯曲凸模凸轮滑动块滑动,使侧弯曲凸模在弹簧作用下复位。 相似文献
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A method for the design and analysis of a dual-cavity coat-hanger die is presented in this paper. A macroscopic material balance and a microscopic flow analysis using the finite element method are combined to simulate polymeric fluid flow inside the die. Leonard's macroscopic procedure was adopted to include inertial, gravitational, and viscous effects, and the finite element method was then applied to estimate the contributions of inertial and viscous terms. In addition, the flow patterns in the outer cavity were computed by the finite element method so that the appearance of an undesirable vortex could be predicted. The residence time distributions for flow in the die were approximated by a simple, statistical approach. It was found through a case study that a dual-cavity coathanger die can effectively reduce the flow non-uniformities caused by fluid inertia and viscosity variations. 相似文献
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A novel approach is proposed to adjust flow nonuniformities caused by production variations from an extrusion die. A mathematical model that is based on the lubrication approximation was developed, and the effect of four types of production variations was examined separately. To each production variation, a specially designed choker bar was constructed and inserted into the extrusion die to correct flow nonuniformities. © 1994 John Wiley & Sons, Inc. 相似文献