锐意汽车烟灰缸盖双型腔模具设计

论文字数:17719.页数:43 附CAD图

摘 要

 本设计主要是对锐意车烟灰缸盖双型腔注射模的设计。首先是对塑料制品的分析，包括它的材料和形状尺寸等方面的要求。接着是注射机的选择及其校核，最后是模具的具体设计，其包括几个重要的部分，如型腔数的确定，分型面的确定，浇注系统，冷却系统，引气排溢系统，脱模机构，抽芯机构等部分的设计。设计中最主要得是浇注系统和抽芯机构的设计，最后是对模架得选择。完成设计以后使用CAD软件对模具进行绘图和装配。在这一系列得设计过程中应当注意在理论校核以及利用CAD\CAM绘制图形时，确保各个部分尺寸符合要求。，
关键词：注射模设计；模具；塑料；分型面
           
Abstract
 
 This paper mainly introduces the main design process of the injecting mold. First plastic product is analyzed, including its material and shape size and so on. Then injection machine is chosen, as well as the mold concrete design, including several important parts: the number of the cavity, the dividing face, designing of the injecting system, cooling system, air supplement and platoon overflows system, the outing mechanism, the mechanism for taking out the core and so on. Its concrete size, shape and form design and the analysis of its performance are also carried on. Finally attainment and the mentality of the mould design are demonstrated.After that ,I use CAD to mapping and assembly. In the series of the processing,we should pay attention to the size meeting the requirement in checking and mapping.
Key words:  Injecting mould design ；Mold ；Plastic ；Dividing face

目录
 摘要.....................................................Ⅰ
 Abstract................................................ Ⅱ
第 1 章 绪论..............................................1
 1.1 选题的依据意义和理论现实方面价值...................1
 1.2 本课题在国内和国外现状.............................1
 1.3 课题研究内容及拟采用的方法.........................1
第 2 章 设计方案总论......................................2
 2.1 设计任务...........................................2
 2.2 产品图样...........................................2
 2.2.1 塑件分析.......................................3
2.2.2 塑件尺寸结构分析...............................3
2.2.2.1精度与尺寸要求............................3
2.2.2.2塑件的结构要素............................3
选择材料及材料性能..............................3
2.2.3.1 汽车烟灰缸盖材料选择......................3
 2.2.3.2 ABS塑料的性能及工艺参数...................3
 2.3 注射机选用..........................................4
2.3.1 注射机类型确定..................................4
2.3.2 注射机型号确定..................................4
2.3.3 注射机参数校核..................................5
2.3.3.1 注射量校核................................5
2.3.3.2 注射压力校核..............................5
2.3.3.3 锁模力校核................................6
第 3 章 注塑模结构设计.....................................7
 3.1 成型部分设计........................................7
分型面确定......................................7
选择分型面原则...........................7
分型面数目...............................7
型腔数的确定....................................8
凸模的结构设计..................................8
凸模材料的选择...........................8
凸模的粗糙度要求.........................9
凸模结构.................................9
凹模的结构设计.................................10
凹模的结构..............................10
凹模的材料选择..........................11
凹模的粗糙度要求........................11
凹模型腔侧壁及底部厚度计算..............11
成型工作尺寸计算........................13
 3.2浇注系统............................................15
主流道设计.....................................16
分流到设计.....................................17
浇口设计...................................19
浇口断面设计........................19
浇口形式选择........................20
浇口数量确定........................20
冷料穴设计.................................20
冷料穴结构..........................20
 排溢引气的系统设计.............................21
 脱模的机构设计.................................22
 3.4.1取出机构的方式..............................22
 3.4.1.1脱模机构设计原则......................22
顶杆脱模机构设计...........................23
顶杆形式............................23
顶杆数量及其位置....................23
顶杆尺寸设计........................24
顶杆与固定板连接形式................24
顶杆顶出机构中附属零部件............25
抽芯机构设计...............................25
斜导柱计算..........................26
滑块设计............................29
压紧楔设计..........................31
拉料杆设计.................................32
 3.5 复位系统设计...................................33
各部分尺寸确定.............................33
材料选择及配合公差确定.....................34
 3.6 冷却系统设计...................................34
3.6.1 冷却装置理论计算...........................34
3.6.1.1 计算单位时间释放热量.................34
3.6.1.2 计算冷却水体积.......................35
3.6.1.3 计算导热总面积.......................35
3.6.1.4 确定冷却水路直径.....................35
3.6.1.5 总冷却水孔长度.......................35
3.6.1.6 冷却水路条数.........................36
3.6.2 冷却装置形式选择...........................36
 3.7 其他零部件设计.................................36
3.7.1 导向原件设计...............................36
3.7.1.1 导柱及导套设计.......................37
3.7.1.2 导柱材料选择.........................37
3.7.1.3 导套的设计...........................37
3.7.1.4 顶杆的导柱设计.......................38
3.7.1.5 垫块的设计...........................39
3.7.1.6 动模座板及定模的设计.................39
        3.7.2 模架的选取.................................39
     总结................................................41
     参考文献............................................42
     致谢.................................................43