空气滤清器壳正反拉伸复合模设计【11张CAD图纸+毕业答辩论文】【冲压模具】

摘  要

随着中国工业不断地发展，模具行业也显得越来越重要。本论文便是设计加工空气滤清器壳的模具。首先对加工零件进行了加工工艺和结构工艺的分析。通过计算毛坯尺寸和拉深系数提出了四种方案，最后确定采用落料、正反拉深复合模。对模具的排样做出了合理的布置，使材料利用率达到较高的水平。计算了冲压过程中所需要的各种冲压工艺力，包括落料力、卸料力、压边力、拉深力、顶料力等，并对压力机进行了合理的吨位初选。复合模在结构上采用了正装的形式，计算出了落料、正拉深和反拉深工作部分的尺寸。对模具的闭合高度进行了合理的确定，还设计出模具的主要零件落料凹模、凸凹模、反拉深凸模、反拉深凹模、凹模固定板等。列出了模具所需零件的详细清单，并给出了合理的装配图。由于拉深的深度较大，对压力机的电机也进行了功率校核并提出了润滑的附加工序，能使拉深顺利完成。最后对模具的一个主要零件导套进行了简单的加工工艺路线的制定。本设计对于采用单动压力机进行正反拉深具有一定的参考作用。

关键词  毕业论文；模具设计；复合模；正反拉深

ABSTRACT

Develops unceasingly along with the Chinese industry, the mold profession also appears more and more importantly. The present paper then is designs the processing air filter shell the mold. First has carried on the processing craft and the structure craft analysis to the processing components. Proposed through the computation semifinished materials size and the drawing coefficient four kind of plans, finally determined uses falls the material, the pro and con drawing superposable die. Has made the reasonable arrangement to the mold platoon type, enables the material use factor to achieve the high level. Has calculated each ramming craft strength which in the ramming process needs, including falls nearby the material strength, the ex-denning strength, the pressure the strength, the drawing strength, the top material strength and so on, and has carried on the reasonable tonnage primary election to the press. The superposable die has used the true thing form in the structure, calculated fell the material, the drawing and the counter- drawing effective range size. Closed has carried on the reasonable determination highly to the mold, but also designs the mold the major parts to fall the material concave mold, the convex-concave mold, the counter- drawing raised mold, the counter- drawing concave mold, the concave mold dead plate and so on. Listed the mold to need the components the detailed detailed list, and has produced the reasonable assembly drawing. Because the drawing depth is big, also carried on the power to the press electrical machinery to examine and to propose the lubrication attachment working procedure, could cause the drawing smoothly to complete. Finally led the wrap to mold major parts to carry on the simple processing craft route formulation. This design regarding uses the single acting press to carry on the pro and con drawing to have the certain reference function.

Key words  graduation thesis; mold design; superposable die; pro and con drawing

目  录

1  分析零件的工艺性1

2  确定工艺方案2

2.1  计算毛坯尺寸2

2.2  计算拉深次数4

2.2.1  正拉深4

2.2.2  反拉深5

2.3  确定工艺方案5

3  主要工艺参数的计算6

3.1  确定排样、裁板方案6

3.2  确定各中间工序尺寸8

3.3  计算工艺力、初选设备9

3.3.1  落料、正拉深过程9

(1) 落料力9

(2) 卸料力9

(3) 拉深力10

(4) 压边力10

3.3.2  反拉深过程11

(1) 反拉深力11

(2) 顶料力11

3.3.3  拉深功的计算11

3.3.4  初选压力机11

4  模具的结构设计13

4.1  模具结构形式的选择13

4.2  模具工作部分尺寸计算13

4.2.1  落料13

4.2.2  正拉深15

4.2.3  反拉深16

5  选用模架、确定闭合高度16

5.1  模架的选用16

5.2  模具的闭合高度16

5.3  压力中心17

6  模具的主要零部件结构设计17

6.1  落料凹模17

6.2  凸凹模18

6.3  反拉深凸模19

6.4  反拉深凹模20

6.6  上垫板23

6.7  凹模固定板24

7  模具的整体安装25

7.1  模具的总装配25

7.2  模具零件26

8  选定冲压设备27

8.1  压力机的规格27

8.2  电动机功率的校核28

9  附加工序29

10  主要零件的加工29

11  总结32

参考文献33

致  谢34

1  分析零件的工艺性

冲压件工艺性是指冲压零件在冲压加工过程中加工的难易程度。虽然冲压加工工艺过程包括备料—冲压加工工序—必要的辅助工序—质量检验—组合、包装的全过程，但分析工艺性的重点要在冲压加工工序这一过程里。而冲压加工工序很多，各种工序中的工艺性又不尽相同。即使同一个零件，由于生产单位的生产条件、工艺装备情况及生产的传统习惯等不同，其工艺性的涵义也不完全一样。这里我们重点分析零件的结构工艺性。