摘要：本课题源于公司内装扣三文造型资料，该产品是配套件的主要零件，是采用塑料成型的，外观表面质量要求较高，外形不允许留下有明显的痕迹，学生在毕业综合实践过程中，可以学到特殊零件的脱模结构，这个课题符合毕业设计要求。着重解决模具结构设计合理，排气性要好，要求成型后尽可能达到精度要求，要考虑成型过程中的变形。生产纲领为：日产200－800件，属于中批量生产，计划一模两腔。作为企业技术改造的重要参考技术资料。根据设计任务分配，要求学生收集塑料材料的成型工艺参数以及相关资料，应用所学的知识和技能解决生产中的塑料材料的成型方面的实际问题。
完成塑料成型工艺设计和模具设计与制造工艺等内容：通过毕业设计的学习，可以UG进行简单的三文造型，编制模具工作零件的机械加工工艺性是，了解模具的加工流程，加工工艺，学会分析确定浇注系统和分型面，进行模流分析，来确定最佳的浇注系统。完成一整套二文、三文模具零件图、总装图，完成说明书，最后通过毕业设计答辩。
关键词： 机械设计；注塑模；侧向抽芯；滑块
Inject mold Design of Auto ignition Case
Abstract: This topic comes from within company buckle 3D modeling, This product is the main parts of fittings，Is using plastic molding, high surface quality requirement of appearance, appearance is not allowed to leave with obvious marks, students at the graduation comprehensive practice, can learn the remolding structure of special parts, the subject as to meet the requirements of graduation design. To solve reasonable mold structure design, the exhaust is better, after molding, requirement meet precision requirements, as far as possible to consider the deformation in the process of forming. Production platform for: Nissan 200-800, belongs to the mass production, plan one module and two cavities. As an important reference of enterprise technology reform technical data. According to the design task assignment, students are required to collect plastic material molding process parameters of the related information, and apply the knowledge and skills in the molding of plastics materials in production actual problem.
Complete plastic forming process design and mold design and manufacturing process, etc, through the graduation design of the study, can be simple UG three-dimensional modeling, mechanical processing manufacturability is compiling the working parts of the mold, understand mould processing process, processing technology, learn to analysis to determine the gating system and parting surface, mold flow analysis, to determine the best gating system. Complete set of 2 d and 3 d mould part drawing, assemblies drawing, complete specifications, the last defense through the graduation design.
Key words: Mechanical design; Injection mold; Lateral core pulling; Slider
目 录
1 绪论 1
1.1 引言 1
1.2 零件结构分析 1
2 塑件成型工艺性分析2
2.1 塑件的分析2
2.1.1 外形尺寸 2
2.1.2 精度等级 2
2.1.3 脱模斜度 3
2.1.4 成型要点 3
2.1.5 受力分析 3
2.2 PC性能分析4
2.3 塑料注射成型工艺参数4
2.3.1 预热干燥 4
2.3.2 注塑时间 4
2.3.3 成型加工温度 5
2.3.4 注塑压力 5
2.3.5 注射速度 5
3 确定塑料成型方式及工艺过程 6
3.1 成型工艺规程 6
4 拟定模具结构形式7
4.1 分型面位置确定7
4.2 型腔数量和排列方式的确定8
4.2.1 型腔数量确定 8
2.2.2 型腔排列形式8
5 分析塑件结构 9
5.1 塑件尺寸精度分析 9
5.2 塑件结构精度分析 9 汽车点火器座注射模设计+CAD图纸+答辩PPT:http://www.751com.cn/jixie/lunwen_175.html