滚轮支架冲压模具设计说明书

滚轮支架冲压工艺与模具设计

摘要

本论文以滚轮支架为例，在分析了该零件的加工难点后，考虑了几种可行的成形方案。在分析之后，选择了落料冲孔复合，弯曲单工序模的工艺方案。该模具主要工序包括：落料、冲孔，最后弯曲，保证了生产效率以及模具制造的简单、低成本。该模具结构简单灵活、可靠，并能保证产品质量，成本低，对此类零件的复合模设计有重要参考价值。通过本论文我掌握了模具设计的基本技能，懂得了怎样分析零件的工艺性和怎样确定工艺方案，并且了解了模具的基本结构，提高了计算能力，绘图能力，熟悉了模具设计的规范和标准，同时对各个相关的课程都进行了全面的复习。而且我独立思考的能力也有了提高。

关键词：滚轮支架,成形工艺,落料冲孔复合,弯曲,模具结构

ROLLING WHEEL HOLDER PUNCHING

TECHNOLOGICAL AND DIE OF DEVISE

ABSTRACT

Taking a rolling wheel holder belt pulley as an example, the forming difficulties of the part were analyzed, and five feasible stamping were put forward. Through comparison, process 4 was selected because it had less process steps, more compound processes, and it also could ensure the precision and coaxiality of the part. Principal manufacturing processes, including: blanking, punching, drawing, anti-drawing. The stamping die structure was presented according to process 4. The die was very simple in structure and could reduce process steps and improve efficiency. Practice has proved: the structure of die is flexible, reliable and can ensure product quality and low cost, it can be important reference to the design of progressive die for such parts. Through this paper we master die design of the basic skills to understand the mold of what parts of the process, how to determine Process, learn the basic structure of the mold, improved computing power, graphics capabilities, and is familiar with the norms and standards related to curriculum subjects at the same time have a comprehensive review, the ability of independent thinking has also improved.

KEY WORDS: rolling wheel holder, forming process, bending, die structure, punching press

目录

前言 (1)

第1章设计任务书和产品图 (3)

第2章零件的冲压工艺性分析 (4)

2.1 零件的工艺性分析及工艺方案选择 (4)

2.2 零件展开图绘制及毛坯尺寸的确定 (4)

2.2.1 毛坯尺寸L计算 (4)

第3章冲压工艺计算 (6)

3.1 排样形式及材料利用率 (6)

3.1.1 排样形式的确定 (6)

3.1.2 材料利用率的计算 (6)

3.2 冲压力的计算 (7)

3.2.1 计算落料力 (7)

3.2.2 计算冲孔力 (7)

3.2.3 弯曲力计算 (8)

3.2.4 计算卸料力 (8)

3.2.5 总压力的计算 (8)

3.3 弯曲模具推件力的计算 (8)

3.4 压力机的选择 (9)

3.5 模具刃口尺寸计算 (9)

3.5.1 落料凸、凹模刃口尺寸计算 (10)

3.5.2 冲孔凸、凹模刃口尺寸计算 (11)

3.5.3 弯曲凸、凹模尺寸计算 (12)

第4章模具主要零件设计 (14)

4.1 落料凹模的设计 (14)

4.2 冲孔凸模的设计及校核 (15)

4.2.1 冲孔凸模长度确定 (15)

4.3 凸凹模的设计 (16)

4.4 弯曲凸模结构设计 (17)

第5章落料冲孔复合模结构形式的选择和设计 (18)

5.1 落料冲孔复合模总体结构 (18)

5.1.1 卸料装置 (19)

5.1.2 导向装置 (19)

5.2 弹性元件的设计 (19)

5.2.1. 橡胶的设计 (19)

5.3 顶件、卸料、压边装置的设计 (20)

5.3.1. 顶件装置的设计 (20)

5.3.2. 卸料装置的设计 (20)

5.3.3. 压边装置的设计 (20)

5.4 模具其他工作零件的设计与选择 (20)

5.4.1 模具非标准零件的选择 (20)

5.4.2 模具标准零件的选择 (20)

第6章弯曲模具的结构设计 (22)

6.1 弯曲模具总体结构 (22)

6.1.1 卸料装置 (22)

6.1.2 导向装置 (22)

6.2 顶件装置的设计 (23)

6.3 模具其他工作零件的设计与选择 (23)

6.3.1 模具非标准零件的选择 (23)

6.3.2 模具标准零件的选择 (23)

第7章模架的选择与固定零件的设计 (24)

7.1 落料冲孔复合模模架的选择 (24)

7.1.1落料冲孔复合模模架的选择 (24)

7.1.2 弯曲模模架的选择 (24)

7.2 固定零件的设计 (24)

7.3 模具校核 (25)

7.3.1 落料冲孔复合模模具闭合高度校核 (25)

7.3.2 弯曲模闭合高度的校核 (25)

结论 (26)