加工石英表垫片的模具设计(附机械加工工艺卡)(含任务书,开题报告,中期检查报告,毕业论文说明书9000字,cad图纸11张零件图1张装配图)
摘 要
本设计的题目是加工石英表垫片的级进模具，通过对方案的选择排样的计算，冲压力的计算和压力中心确定的计算以及凸凹模刃口的计算等使本副模具基本符合冲压要求，由于石英表垫片的面积较小，材料较薄并且H62硬度很低，所以采取级进模具加工（本副模具为2个工位）先冲孔，再用凸模经过两次送进完整的落料实现零件的成形。
级进模具的精度要求很高导向要求十分精确，在设计本副模具时遇到很大的阻力经过对各方案的选择和排除最终才选择此方案。通过近三周的拼搏，本副级进模具设计终于完成。根据标准模架的选择，制作凸凹模材料的选择以及导向和送进精度的确定本模具所加工出的石英表垫片满足要求，符合市场的需要。
由于设计者的能力所限，设计中的不足之处还有好多例如：材料利用率方面仅29.8%，会对经济效益有影响，但材料利用率的大小由工件形状和排样决定，石英表垫片两边大且不对称，中间很窄所以排样后材料利用率较低。根据《实用模具技术手册》，本模具的冲裁力不大精度基本能保证的前提下选择了对角导柱模架。相信不久本模具投入市场一定能带来很好的效益服务大众，服务社会。
关键词：级进模、排样、压力中心.
Mold design of the processing quartz form bolster core
Summary
Topic that design originally to process quartz form grade bolster of core enter mould , rank the calculation of kind through the choice the scheme, it makes this pair of moulds accord with the request of pressing basically to press calculation , calculation which the pressure centre confirm and calculation of the protruding concave mould blade of strength ,etc., because the area of the quartz form bolster core is relatively small, the material is very more small in hardness than thin and H62, so adopt grade enter the mould and process (this pair of moulds are for 2 pieces of engineering location ) and wash holes first , and then send to blanking and realize the taking shape of the part twice by making the protruding mould up。
Grade enter precision of mould expect very much and lead demanding to be very accurate, the obstruction that it is very great to meet while designing this pair of moulds is through and gets rid of and chooses this scheme to the choice of every scheme finally. Through the striving of nearly three weeks, this each enters mold design to finish at last. According to the choice of the standard mould shelf, choice , direction and quartz form bolster core processed of a mould of sureness sent to the precision of making protruding concave mould material meet the demands, meet market's needs.
The because designer one it restrict with ability, have much weak point in design for example: The material utilization ratio is only 29.8%, will influence economic benefits, but the size of the material utilization ratio and arranges one kind of decisions by the form of the work piece, the quartz form bolster core both sides are large and asymmetric, the material utilization ratio is relatively low after the middle is very narrow to arranges kind. According to《practical mould technical manual》, the blanking strength of this mould leads the post mould shelf opposite angles not quite choosing under the prerequisite that the precision can be guaranteed basically. Can unquestionably bring very good benefit and serve the general public to invest the market while believing a mould soon, serve the society.
Key words: transfer mold、 scheme、pressure centre。
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