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动片零件的冲压成形工艺及模具设计-U形带凸缘圆筒形件拉深落料级进模含17张CAD图+说明书

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工件A4

动片零件的冲压成形工艺及模具设计【U形带凸缘圆筒形件拉深落料级进模】
摘要:本设计为动片落料拉伸级进模设计。通过对该零件模具的设计，进一步加强了设计者冲压模设计的基础知识，为设计更复杂的冲压模具做好了铺垫和吸取了更深刻的经验。
本设计运用冲压成形工艺及模具设计的基础知识，首先分析了冲压件的外形及用处性能要求，为选取模具的类型做好了准备；然后计算了冲压力，便于选取压力机；最后计算了制件的压力中心，确定模具的设计参数、设计要点及推出装置的选龋
设计级进模，首先要设计条件排样图。动片零件的形状简单。由于零件外形尺寸为自由尺寸对精度要求不高，为了提高材料的利用率减少冲裁力，虽然这时会使零件外形尺寸公差等级降低但是经过筹兼顾，全面考虑。这里我们采用少废料排样。
凹模采用整体式凹模，各冲裁的凹模孔均采用线切割机床加工，安排凹模在模架上的位置时要依据计算压力中心与模柄中心重合。
关键词:级进模、少废料排样、下出料方式、弹性挡料销、压料板
Moving piece parts of The Stamping Die Design
Abstract: The move is designed to stretch film blanking Progressive Die Design. Parts of the mold through the design, designers have further strengthened the basis for stamping die design knowledge, for the design of more complex stamping die to do a good job of paving theway and draw a more profound experience.
The design and use of stamping die design of the basic knowledge,first of stamping parts of the appearance and usefulness of performance requirements. To select the type of mold prepared for the Die Design design,Chong then calculate the pressure for selecting press,the final calculation of the pressure on the central parts, the design parameters established mold, design elements and the introduction of the selected devices。
Progressive Die Design, first of all conditions to design the layout plan. Moving parts of the shape of a simple film. Dimension as a result of the free parts of the accuracy of modest size, in order to enhance the utilization of materials to reduce the blanking force, although this dimension tolerance partswill reduce the level of financing, however, after both, taken as awhole. Herewe used nesting lesswaste.
Die using integrated die, blanking the die-adopted WEDM processing, for die-shelf in the position should be calculated based on pressure center and center-stalk coincidence.
Keywords: Progressive die,little nesting materials, the materials underway pin block material, discharge board
目录
1.绪论………………………………………………………………………….…..1
1.1.冷冲压在工业生产中的地位…………………………………………….…...3
1.2.国内模具的现状和发展趋势…………………………………………….…...3
1.2.1.国内模具的现状……………………………………………………….…...4
1.2.2.国内模具的发展趋势………………………………………………….…....5
1.3.国外模具的现状和发展趋势…………………………………………….…...6
1.4.深圆筒拉深模具设计的设计思路……………………………………….…...6
2.落料拉深级进模设计……………………………………………………….….8
2.1.原始资料………………………………………………………,…….……......8
2.2.设计内容……………………………………………………………..………..8
3.工件工艺性分析………………………………………………………………..10
3.1.工艺性…………………………………………………………………….......10
3.2.冲压件的工艺性分析…………………………………………………….…..10
4.工艺方案的确定…………………………………………………………..…….11
4.1.确定工艺方案的主要原则……………………………………………..……..11
4.2.工艺方案分析确定…………………………………………………..………..11
5.主要设计计算…………………………………………………………..……....12
5.1.排样……………………………………………………………………...……12
5.2.计算最小搭边值及零件毛坯面积……………………………………….......12
5.3.工序计算……………………………………………………………………...13
5.3.1计算毛坯尺寸………………………………………………………………13
5.3.2判断能否一次拉成…………………………………………………………14
5.3.3试制定首次拉深系数……………………………………………………... 14
5.3.4确定拉深系数……………………………………………………………... 15
5.3.5确定是否用压边圈……………………………………………………...….19
5.4.进行必要的计算………………………………………………………….......19
5.4.1首先计算落料拉深复合的压边力和拉深力……………………................19
5.4.1.1计算压边力……………………………………………………………....20
5.4.1.2计算拉深力………………………………………………………...…….20
5.4.1.3计算公称压力,拉深力……………………………………………………20
5.4.2计算落料工序冲压力的计算………………………………………….......21
5.4.3计算冲定位孔时冲压力的计算……………………………………......….21
5.4.4模具工作部分尺寸计算……………………………………………...…....21
6.凸凹模的结构设计………………………………………………………...…..24
6.1.凸模长度计算………………………………………………………....……...24
6.2.凸模圆角半径………………………………………………………………...24
6.3.凹模高度的确定……………………………………………………………...24
6.4.凹模的材料…………………………………………………………………...24
6.5.弹簧的确定………………………………………………………….….….....24
7.模具的总体设计…………………………………………………………....…..25
7.1.基本结构形式………………………………………………………………....25
7.2.基本尺寸……………………………………………………………..…….....26
7.3.模架………………………………………………………………….……..…26
7.4.模柄…………………………………………………………………….…..…26
7.5.定位装置……………………………………………………………….…..…27
7.6.导料装置……………………………………………………………….…..…27
8.压力机型号确定及校核…………………………………………………..…....28
8.1.冲压设备的选择应注意的问题………………………………………….…..28
8.2.压力机与模具设计的有关系数……………………………………….…..…28
9.模具工作零件的加工工艺………………………………………………..…...29
9.1冲裁模凸、凹模的技术要求及加工特点………………………………......29
9.2凸、凹模加工的工艺方案……………………………………………..…….29
10.模具装配图的绘制……………………………………………………..……32
11.模具的装配……………………………………………………………..……33
12.总结…………………………………………………………….……….……36
致谢………………………………………………………………………..…….38
参考文献…………………………………………………………………..…….39