设计简介
摘要
本课题是设计生产冰箱下底板模具，设计采用两副模具实现对工件的加工，模具的设计和制造相对比较简单。即一副落料冲孔复合模和一副Z形弯曲模具。采用此方案首先要保证孔不在弯曲变形曲之内，通过对该工件的尺寸计算，孔并不在工件的弯曲变形区内，采用该方案是合理的。
对于落料复合模，工件上的孔较多，有18个孔，分别为Φ18、9—Φ3.5、4—Φ2.9和4—Φ10，首先要保证孔在工件上相对位置的精度。而且象Φ2.9、Φ3.5孔，相对尺寸较小，因此要保证冲孔凸模的强度，本模具采用的是A型圆凸模加强冲孔凸模的强度；推件块也相对的对凸模起到一定的保护作用，因而冲孔凸模的强度得到保证。对于Z行弯曲模，首先要考虑的就是落料坯件在模具上的定位，该模具以Φ18孔做位定位孔，保证工件弯曲位置的准确和弯曲过程中不发生偏移，因而保证了弯曲工件的弯曲精度。该工件的模具总体设计是比较合理的，完全可以生产出合格制件。
但是由于设计水平和实践经验的局限，设计中难免出现错误，比如模具材料的选用，使的模具的成本较高。希望各位老师批评指正。
通过努力，这次毕业设成功的设计了冰箱下底板模具。
关键词：正装复合模 冰箱下底板 定位销
Abstract
This topic designs the production refrigerator infrabasal plate mold,The design uses two molds realizations to the work piece processing，The mold design and the manufacture relative quite is simple. Namely falls the material punch holes superposable die and a Z shape curving mold. Uses this plan first to have to guarantee the hole not in the bending strain tune, Through to this work piece size computation,Hole not in work piece curving deformation range,Uses this plan is reasonable. Regarding falls the material superposable die,On work piece Kong Jiaoduo,Some 18 holes,Respectively is Phi 18, 9 □Phi 3.5, 4 □Phi 2.9 and 4 □Phi 10，First must guarantee the hole on the work piece the relative position precision. Moreover likely Phi 2.9, Phi 3.5,The relative size is small, Therefore must guarantee the punch holes raised mold the intensity,This mold uses is the A circle raised mold strengthens the punch holes raised mold the intensity; Relatively pushes a block also to get up to the raised mold to the certain protective function,Thus the punch holes raised mold intensity obtains the guarantee. Regarding Z line of bending dies, First must consider is falls the material semifinished product on the mold localization,This mold makes the position index hole by Phi 18, Guaranteed the work piece curving position is accurate and in the curving process does not have the displacement, Thus has guaranteed the curving work piece curving precision. This work piece mold system design is quite reasonable,Definitely may produce the qualified workpiece.
But as a result of design level and experience limitation,In the design appears the mistake unavoidably,For instance mold material selection。Causes the mold cost is high. Hoped fellow teachers criticize point out mistakes.
Through diligently,This graduation supposed the successful design refrigerator infrabasal plate mold.
Key word:True thing superposable die refrigerator infrabasal plate positioning pin
设计说明书目录
1.设计说明书………………………………………………………………………1
1.1. 冲压件工艺性分析…………………………………………………………2
1.2. 冲压工艺方案的确定………………………………………………………3
2.落料冲孔复合模具设计…………………………………………………………5
2.1.工件工艺分析 ………………………………………………………………5
2.2冲压工艺方案……………………………………………………………… 6
2.3主要设计计算……………………………………………………………… 6
2.3.1弯曲件坯料尺寸计算…………………………………………………6
2.3.2 排样方式的确定及计算………………………………………………7
2.3.3 冲压力计算……………………………………………………………8
2.3.4 压力中心的确定及相关计算…………………………………………9
2.3.5 工作零件刃口尺寸计算………………………………………………10
2.3.6 卸料橡胶的计算………………………………………………………12
2.4 模具总体设计……………………………………………………………… 14
2.5 主要零部件设计…………………………………………………………… 15
2.5.1工作零件的结构设计………………………………………………… 15
2.5.1.1落料凹模的结构设计………………………………………………15
2.5.1.2镶块的结构设计……………………………………………………15
2.5.1.3 落料冲孔凸凹模………………………………………………… 17
2.5.1.4 冲孔凸模……………………………………………………………18
2.5.2 定位零件的选择……………………………………………………… 19
2.5.3 卸料部件的设计……………………………………………………… 20
2.5.3.1卸料板的设计………………………………………………………20
2.5.3.2卸料螺钉的选用……………………………………………………20
2.5.4模架及其他零部件设计……………………………………………… 21
2.6模具总装图……………………………………………………………………22
2.7冲压设备的选定……………………………………………………………… 23
2.8模具零件加工工艺………………………………………………………………24
2.9模具的装配………………………………………………………………………25
3.弯曲模具的设计……………………………………………………………………29
3.1弯曲件的工艺分析…………………………………………………………… 29
3.2 模具结构……………………………………………………………………… 30
3.3主要计算…………………………………………………………………………31
3.3.1 弯曲力的计算……………………………………………………………31
3.3.2 回弹量的计算……………………………………………………………31
3.3.3 弹顶器的计算 ……………………………………………………… 32
3.3.4 凸、凹模间隙的确定……………………………………………………32
3.4主要零、部件设计…………………………………………………………… 33
3.4.1定位方法……………………………………………………………… 33
3.4.2 凸模圆角半径…………………………………………………………33
3.4.3 凹模圆角半径…………………………………………………………33
3.4.4 凸、凹模工作部分尺寸………………………………………………34
3.4.5凹模深度………………………………………………………………34
3.5 弯曲部件设计…………………………………………………………………35
3.5.1 活动凸模设计……… …………………………………………………35
3.5.2固定凸模设计… ………………………………………………………35
3.5.3 凹模设计……… ………………………………………………………36
3.6 弯曲压力机选择…………………………………………………………………37
3.7 模具的装配………………………………………………………………………38
4.设计总结………………………………………………………………………… 40
致谢…………………………………………………………………………………41
参考文献…………………………………………………………………………42
本课题是设计生产冰箱下底板模具，设计采用两副模具实现对工件的加工，模具的设计和制造相对比较简单。即一副落料冲孔复合模和一副Z形弯曲模具。采用此方案首先要保证孔不在弯曲变形曲之内，通过对该工件的尺寸计算，孔并不在工件的弯曲变形区内，采用该方案是合理的。
对于落料复合模，工件上的孔较多，有18个孔，分别为Φ18、9—Φ3.5、4—Φ2.9和4—Φ10，首先要保证孔在工件上相对位置的精度。而且象Φ2.9、Φ3.5孔，相对尺寸较小，因此要保证冲孔凸模的强度，本模具采用的是A型圆凸模加强冲孔凸模的强度；推件块也相对的对凸模起到一定的保护作用，因而冲孔凸模的强度得到保证。对于Z行弯曲模，首先要考虑的就是落料坯件在模具上的定位，该模具以Φ18孔做位定位孔，保证工件弯曲位置的准确和弯曲过程中不发生偏移，因而保证了弯曲工件的弯曲精度。该工件的模具总体设计是比较合理的，完全可以生产出合格制件。
但是由于设计水平和实践经验的局限，设计中难免出现错误，比如模具材料的选用，使的模具的成本较高。希望各位老师批评指正。
通过努力，这次毕业设成功的设计了冰箱下底板模具。
关键词：正装复合模 冰箱下底板 定位销
Abstract
This topic designs the production refrigerator infrabasal plate mold,The design uses two molds realizations to the work piece processing，The mold design and the manufacture relative quite is simple. Namely falls the material punch holes superposable die and a Z shape curving mold. Uses this plan first to have to guarantee the hole not in the bending strain tune, Through to this work piece size computation,Hole not in work piece curving deformation range,Uses this plan is reasonable. Regarding falls the material superposable die,On work piece Kong Jiaoduo,Some 18 holes,Respectively is Phi 18, 9 □Phi 3.5, 4 □Phi 2.9 and 4 □Phi 10，First must guarantee the hole on the work piece the relative position precision. Moreover likely Phi 2.9, Phi 3.5,The relative size is small, Therefore must guarantee the punch holes raised mold the intensity,This mold uses is the A circle raised mold strengthens the punch holes raised mold the intensity; Relatively pushes a block also to get up to the raised mold to the certain protective function,Thus the punch holes raised mold intensity obtains the guarantee. Regarding Z line of bending dies, First must consider is falls the material semifinished product on the mold localization,This mold makes the position index hole by Phi 18, Guaranteed the work piece curving position is accurate and in the curving process does not have the displacement, Thus has guaranteed the curving work piece curving precision. This work piece mold system design is quite reasonable,Definitely may produce the qualified workpiece.
But as a result of design level and experience limitation,In the design appears the mistake unavoidably,For instance mold material selection。Causes the mold cost is high. Hoped fellow teachers criticize point out mistakes.
Through diligently,This graduation supposed the successful design refrigerator infrabasal plate mold.
Key word:True thing superposable die refrigerator infrabasal plate positioning pin
设计说明书目录
1.设计说明书………………………………………………………………………1
1.1. 冲压件工艺性分析…………………………………………………………2
1.2. 冲压工艺方案的确定………………………………………………………3
2.落料冲孔复合模具设计…………………………………………………………5
2.1.工件工艺分析 ………………………………………………………………5
2.2冲压工艺方案……………………………………………………………… 6
2.3主要设计计算……………………………………………………………… 6
2.3.1弯曲件坯料尺寸计算…………………………………………………6
2.3.2 排样方式的确定及计算………………………………………………7
2.3.3 冲压力计算……………………………………………………………8
2.3.4 压力中心的确定及相关计算…………………………………………9
2.3.5 工作零件刃口尺寸计算………………………………………………10
2.3.6 卸料橡胶的计算………………………………………………………12
2.4 模具总体设计……………………………………………………………… 14
2.5 主要零部件设计…………………………………………………………… 15
2.5.1工作零件的结构设计………………………………………………… 15
2.5.1.1落料凹模的结构设计………………………………………………15
2.5.1.2镶块的结构设计……………………………………………………15
2.5.1.3 落料冲孔凸凹模………………………………………………… 17
2.5.1.4 冲孔凸模……………………………………………………………18
2.5.2 定位零件的选择……………………………………………………… 19
2.5.3 卸料部件的设计……………………………………………………… 20
2.5.3.1卸料板的设计………………………………………………………20
2.5.3.2卸料螺钉的选用……………………………………………………20
2.5.4模架及其他零部件设计……………………………………………… 21
2.6模具总装图……………………………………………………………………22
2.7冲压设备的选定……………………………………………………………… 23
2.8模具零件加工工艺………………………………………………………………24
2.9模具的装配………………………………………………………………………25
3.弯曲模具的设计……………………………………………………………………29
3.1弯曲件的工艺分析…………………………………………………………… 29
3.2 模具结构……………………………………………………………………… 30
3.3主要计算…………………………………………………………………………31
3.3.1 弯曲力的计算……………………………………………………………31
3.3.2 回弹量的计算……………………………………………………………31
3.3.3 弹顶器的计算 ……………………………………………………… 32
3.3.4 凸、凹模间隙的确定……………………………………………………32
3.4主要零、部件设计…………………………………………………………… 33
3.4.1定位方法……………………………………………………………… 33
3.4.2 凸模圆角半径…………………………………………………………33
3.4.3 凹模圆角半径…………………………………………………………33
3.4.4 凸、凹模工作部分尺寸………………………………………………34
3.4.5凹模深度………………………………………………………………34
3.5 弯曲部件设计…………………………………………………………………35
3.5.1 活动凸模设计……… …………………………………………………35
3.5.2固定凸模设计… ………………………………………………………35
3.5.3 凹模设计……… ………………………………………………………36
3.6 弯曲压力机选择…………………………………………………………………37
3.7 模具的装配………………………………………………………………………38
4.设计总结………………………………………………………………………… 40
致谢…………………………………………………………………………………41
参考文献…………………………………………………………………………42
