设计简介
弯片冲压成形工艺及模具设计
摘要：本设计为弯片落料冲孔复合模及弯曲模设计。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取。
设计复合模，首先要设计条件排样图。弯片展开后的形状简单。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:复合模 、大批量 、弯片、少废料排样 、导正销 、卸料板
The design of punching bending die bending
Abstract：This design falls the material punch holes superposable die and the bending die design for the angle iron.Through to this components mold design, further strengthened the designer to flush the die design the elementary knowledge, for designed the more complex ramming mold to complete the upholstery .
This design the elementary knowledge which designs using the ramming forming craft and the mold, first has analyzed the pressing part contour and the use performance requirement, for selected the mold the type to prepare for; Then has calculated the ramming strength, is advantageous for selects the press; The last count workpiece center of pressure, the definite mold design variable, the design main point and promoted the installment the selection.
The design superposable die, first must a design conditions row of specimen map.The angle iron launches after the shape to be simple.Because the components external dimensions are not high for the free size to the precision request, in order to enhance the material the use factor reduction blanking force, but although could cause the components external dimensions grade of tolerance by now to reduce the process to plan the proper attention to both, comprehensive consideration.Here we use a few waste material row of type.
The concave mold uses the integral-type concave mold, various blankings concave nib uses the line cutting engine bed processing, arranges the concave mold when pould frame position must rest on the pressure rating center and the die shank center superposition.
Key word: The superposable die, the mass, the angle iron, a few waste material row of type, lead are selling, unload the yard lumber
目 录
1绪 论 1
1.1 冲压的现状与发展方向 1
1.1.1 冲压成形理论及冲压工艺 1
1.1.2 冲压模具的设计与制造 1
1.1.3 模具材料 1
1.1.4 冲压模具的标准化和专业化 1
1.1.5 冲压模具CAD/CAE/CAM技术 2
1.1.6 冲压设备和冲压生产自动化 2
1.1.7 快速模具制造技术 2
1.2 冷冲压模具在工业生产的地位 2
1.3 冷冲压模具的分类 3
1.3.1按冲压工艺进行分类 3
1.3.2按工序组合程度进行分类 3
1.3.3按上下模的导向方式分类 3
1.3.4按导料或定位形式分类 3
2零件的工艺性分析 4
2.1 冲压件的工艺分析 4
2.2 工艺方案的确定 4
2.3 冲裁排样方案的确定 5
2.4 计算凸、凹模刃口尺寸 6
2.5 冲压力的计算 7
2.6 工作零部件的设计 8
2.6.1冲孔凸模 8
2.6.2凸模强度校核 9
2.6.3凸凹模的选择 9
2.6.4落料凸模的选择 9
2.6.5落料凹模的选择 9
2.7 定位零件的设计 10
3弯曲模具的设计 16
3.1 弯曲的工艺计算 16
3.1.1 弯曲件展开长度计算 16
3.1.2 弯曲模工作尺寸计算 17
3.1.3 弯曲件回弹值计算 19
3.1.4弯曲力的计算 19
3.2 模具总体设计 20
3.3冲压设备的选定 20
4 模具装配图 22
5 结束语 24
致 谢 25
摘要：本设计为弯片落料冲孔复合模及弯曲模设计。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取。
设计复合模，首先要设计条件排样图。弯片展开后的形状简单。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:复合模 、大批量 、弯片、少废料排样 、导正销 、卸料板
The design of punching bending die bending
Abstract：This design falls the material punch holes superposable die and the bending die design for the angle iron.Through to this components mold design, further strengthened the designer to flush the die design the elementary knowledge, for designed the more complex ramming mold to complete the upholstery .
This design the elementary knowledge which designs using the ramming forming craft and the mold, first has analyzed the pressing part contour and the use performance requirement, for selected the mold the type to prepare for; Then has calculated the ramming strength, is advantageous for selects the press; The last count workpiece center of pressure, the definite mold design variable, the design main point and promoted the installment the selection.
The design superposable die, first must a design conditions row of specimen map.The angle iron launches after the shape to be simple.Because the components external dimensions are not high for the free size to the precision request, in order to enhance the material the use factor reduction blanking force, but although could cause the components external dimensions grade of tolerance by now to reduce the process to plan the proper attention to both, comprehensive consideration.Here we use a few waste material row of type.
The concave mold uses the integral-type concave mold, various blankings concave nib uses the line cutting engine bed processing, arranges the concave mold when pould frame position must rest on the pressure rating center and the die shank center superposition.
Key word: The superposable die, the mass, the angle iron, a few waste material row of type, lead are selling, unload the yard lumber
目 录
1绪 论 1
1.1 冲压的现状与发展方向 1
1.1.1 冲压成形理论及冲压工艺 1
1.1.2 冲压模具的设计与制造 1
1.1.3 模具材料 1
1.1.4 冲压模具的标准化和专业化 1
1.1.5 冲压模具CAD/CAE/CAM技术 2
1.1.6 冲压设备和冲压生产自动化 2
1.1.7 快速模具制造技术 2
1.2 冷冲压模具在工业生产的地位 2
1.3 冷冲压模具的分类 3
1.3.1按冲压工艺进行分类 3
1.3.2按工序组合程度进行分类 3
1.3.3按上下模的导向方式分类 3
1.3.4按导料或定位形式分类 3
2零件的工艺性分析 4
2.1 冲压件的工艺分析 4
2.2 工艺方案的确定 4
2.3 冲裁排样方案的确定 5
2.4 计算凸、凹模刃口尺寸 6
2.5 冲压力的计算 7
2.6 工作零部件的设计 8
2.6.1冲孔凸模 8
2.6.2凸模强度校核 9
2.6.3凸凹模的选择 9
2.6.4落料凸模的选择 9
2.6.5落料凹模的选择 9
2.7 定位零件的设计 10
3弯曲模具的设计 16
3.1 弯曲的工艺计算 16
3.1.1 弯曲件展开长度计算 16
3.1.2 弯曲模工作尺寸计算 17
3.1.3 弯曲件回弹值计算 19
3.1.4弯曲力的计算 19
3.2 模具总体设计 20
3.3冲压设备的选定 20
4 模具装配图 22
5 结束语 24
致 谢 25
