Study on Optimal Design of snap-fit Considering Assembly/Disassembly

考虑装拆的卡扣优化设计研究

• 批准号: 13650144
• 负责人: WATANUKI Keiichi
• 金额: $ 1.34万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650144/
• 关键词: Snap-fit; Assembly; Disassembly; Design for recycling; Strength design; Finite element method; Machine element; Optimum design; Systemization of design; 残留応力

In this research, optimum design of snap-fit is studied by which assembly/disassembly abilities are considered. The results of study are listed as below.(1) Systemization of snap-fit design methodBased on the results obtained from researches done in year 2001 and 2002 and other domestic/foreign research results, snap-fit design method is systemized. Correspondence to the systemization, snap-fit is organized by its definition, material, shape, categories (locator, lock), shape design know-how (base beam thickness, beam length, insert plane angle, connection plane depth, connection plane angle, beam tip thickness, beam width, base fillet), shape design and so on.(2) Design of optimum snap-fit configurationIn order to find the optimum snap-fit configuration by which assembly/disassembly abilities are considered, theoretical analysis and FEM analysis have been performed. A snap-fit performance testing machine is developed to measure the forces required during assembly and disassembly, where by connectivity is evaluated from the results. From the results, it is observed that snap-fit with empty slot and angular (non right angle) connection plane possess good assembly/disassembly abilities, thus they are considered as optimum designs in this study.

在本研究中，研究了考虑组装/拆卸能力的卡扣配合的优化设计。研究结果如下： (1)卡扣设计方法的系统化 在2001年和2002年的研究成果以及国内外其他研究成果的基础上，对卡扣设计方法进行了系统化。与系统化相对应，卡扣配合由其定义、材料、形状、类别（定位器、锁定）、形状设计知识（基梁厚度、梁长度、插入平面角度、连接平面深度、连接平面角度、梁尖端厚度、梁宽度、基部圆角）、形状设计等进行组织。（2）最佳卡扣配置的设计为了找到最佳卡扣配置，以提高组装/拆卸能力 并进行了理论分析和有限元分析。开发了一种卡扣配合性能测试机，用于测量组装和拆卸过程中所需的力，并根据结果评估连接性。从结果中可以看出，空槽卡扣和有角度（非直角）连接面的卡扣配合具有良好的组装/拆卸能力，因此被认为是本研究中的最佳设计。

项目成果

Keiichi Watanuki, Shigeru Fukabayashi: "Optimal Configuration of Cantilever Type Snap-Fit Considering Assemblability/Disassemblability and Fastener Performance"Procs. of JSME Kanto Branch. 040-1. 527-528 (2004)

Keiichi Watanuki、Shigeru Fukabayashi：“考虑可组装性/可拆卸性和紧固件性能的悬臂式卡扣配合的最佳配置”Procs。

綿貫啓一, 加藤大紀: "組立/分解性を考慮したカンチレバーフック型スナップフィットの最適形状"日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集. No.010-2. 123-124 (2001)

Keiichi Watanuki、Daiki Kato：“考虑组装/拆卸的悬臂钩卡扣配合的最佳形状”日本机械工程学会关东支部联合讲座2001年鸠山讲座论文集第010-124号。

綿貫啓一, 藤田 寛: "組立/分解性を考慮したカンチレバーフック型スナップフィットの最適形状"日本機械学会第12回設計工学・システム部門講演会講演論文集. No.02-31. 432-435 (2002)

Keiichi Watanuki、Hiroshi Fujita：“考虑组装/拆卸方便性的悬臂钩卡扣配合的最佳形状”第12届日本机械工程师学会设计工程和系统分会会议记录第02-31号。 435（2002）

Keiichi Watanuki, Daiki Kato: "Optimal Configuration of Cantilever Type Snap-fit Considering Assembly/Disassembly"Procs. of JSME Kanto Branch. 010-2. 123-124 (2001)

Keiichi Watanuki、Daiki Kato：“考虑组装/拆卸的悬臂式卡扣配合的最佳配置”Procs。

Keiichi Watanuki, Hiroshi Fujita: "Optimal Configuration of Snap-Fit with Hole in a Beam"Procs. of JSME D&S 2002. 02-31. 423-435 (2002)

Keiichi Watanuki、Hiroshi Fujita：“梁中带孔的卡扣配合的优化配置”Procs。