机械5

目录 任务书Ⅰ 开题报告Ⅱ 中文摘要Ⅵ 外文摘要Ⅶ 1前言1 1.1设计研究的内容2 1.2课题研究思路2 1.3课题研究应注意的问题2 2分析零件的工艺性3 2.1冲裁件造型3 2.2工艺分析3 2.3冲裁方案的确定4 3冲压工艺参数计算5 3.1排样的设计5 3.2计算材料利用率6 3.3各工位冲裁力的计算6 3.4计算卸料力以及推件力7 3.5冲压力的总和7 4选择压力设备和压力中心的计算8 4.1冲压设备的选择8 4.2压力中心的计算8 5模具总体结构设计10 5.1模具类型的选择10 5.2送料方式10 5.3定位方式选择10 5.4卸料和出件方式11 5.5导向方式的选择11 6凸凹模刃口尺寸计算13 6.1冲裁间隙的选择13 6.2计算凸、凹模刃口尺寸13 7模具零件结构设计15 7.1凹模设计15 7.2凸模的设计17 7.3其他板尺寸的确定18 7.4上、下模座的选用21 7.5模柄的选用22 7.6卸料螺钉的选用22 7.7圆柱销和螺钉的设计22 8校核模具高度和压力机23 8.1冲压设备的校核23 8.2冲压设备的选用23 总结24 参考文献25 致谢26 双支架锁片落料模设计 [摘要]本篇课题是对双支架锁片落料模的研究，首先对工件的材料、结构以及精度进行分析。材料方面，工件选用Q235做为生产材料。结构方面工件外形简单易懂，厚度为3mm,精度方面，工件没有特殊要求，采用IT14精度等级，通过对双支架锁片分析，工件只有落料、冲孔的工序。本篇仅对落料工序进行介绍说明，综上所述我们可以使用单工序落料摸来对双支架锁片生产。 首先需要对双支架锁片进行分析，从而得出最适合的设计方案，通过双支架锁片的工件图我们可知其有落料工序。对于工件材料的选择，首先要分析材料的通用性、性价比以及材料的精度能否达到对工件的生产。然后确定合适的模具工艺方案，可以从单工序模、复合模和级进模三种方案来进行对比。确定出哪一种最适合生产，通过对比分析，最终采用落料模来对落料工序完成制作。 [关键词]精度等级；双支架锁片；方案对比 Desig
n of bla
nki
ng Die for double support Lock [Abstract] I
n this paper,we study the double support locki
ng plate, a
nd a
nalyze the material, structure a
nd precisio
n of theworkpiece. I
n terms of material, theworkpiece is made of Q235 as the productio
n material. I
n terms of structure, theworkpiece shape is simple a
nd easy to u
ndersta
nd, thick
ness is 3mm. I
n terms of precisio
n, theworkpiece has
no special requireme
nts. IT14 precisio
n grade is adopted. Through the a
nalysis of double support locki
ng piece, theworkpiece is o
nly used for bla
nki
ng a
nd pu
nchi
ng. This article o
nly i
ntroduces a
nd explai
ns the bla
nki
ng process. I
n co
nclusio
n,we ca
n use the o
ne-step bla
nki
ng touch to produce double-support locki
ng piece. First of all, it is
necessary to a
nalyze the double support lock, so as to get the most suitable desig
n scheme. Through theworkpiece diagram of the double support lock,we ca
n k
now that the double support lock has the bla
nki
ng process. For the selectio
n ofworkpiece materials, first of all, it is
necessary to a
nalyze the u
niversality of materials, the ratio of performa
nce to price a
ndwhether the accuracy of materials ca
n achieve the productio
n ofworkpiece. The
n the appropriate die process scheme ca
n be compared from three schemes: si
ngle seque
nce die, composite die a
nd progressive die. Determi
newhich is the most suitable for productio
n, through comparative a
nalysis, a
nd fi
nally use bla
nki
ng mold to complete the bla
nki
ng process [Keywords] Precisio
n grade; double bracket lock plate; scheme compariso