Research on the Flexible Adjustment Cell for Mechanical Assembly

机械装配柔性调节单元的研究

• 批准号: 05650111
• 负责人: KANAI Satoshi
• 金额: $ 1.54万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650111/
• 关键词: Assembly; Positional Adjustment; Piezoelectric Actuator; Bolt Fastening; Tolerance Synthesis; Tolerance Analysis; Assembling Deviation; 3次元測定器; マイクロインパクトハンマー

(1) As the essential device of the flexible adjustment, the micro-impact hummers (MIHs) made by the piezoelectric actuators were newly developed, and were installed into the 2 dimensional NC positioning table. By using this device, the experiments on the automatic micro adjustment of the positional and orientational deviation for the bolt-fastened component were done. The results of the experiments showed that the developed device could stably adjust the position and orientation of the jig-component with the initial deviation of 30 mum and 0.001 rad into the allowable deviation zone of 5 mum and 0.0002 rad.(2) For the purpose on the optimal tolerances synthesis of the mechanical assembly, a computer aided system for the 3D tolerance synthesis system was developed. The assembly was represented by solid model, and dimensional and geometrical tolerances were formulated as a set of inequalities. Differential coordinate transformation and linear programming were used to analyze the dimensional and geometrical tolerance stack-up. The cost data base descried the relation among form featured, tolerance range, machining and set-up costs. Tolerance synthesis was formulated as the combinational optimization problem under the stack-up conditions. Genetic Algorithm was applied to solve these problems. The coding method and genetic operators were discussed. The algorithm was evaluated through the tolerance synthesis for the gear box. It was confirmed that the proposed GA based tolerance synthesis method could find the optimum tolerance allocation plan for a rational period.

(1)作为柔性调整的关键装置，研制了压电陶瓷微冲击锤，并将其安装在二维数控定位工作台上。利用该装置对螺栓紧固件的位姿偏差进行了自动微调实验。实验结果表明，该装置可以稳定地调整位置和方向的夹具组件的初始偏差为30妈妈和0.001拉德到允许偏差区为5妈妈和0.0002拉德。(2)以机械装配公差优化综合为目的，开发了三维公差综合系统的计算机辅助系统。装配体用实体模型表示，尺寸公差和形位公差用不等式表示。采用微分坐标变换和线性规划方法对尺寸公差和形位公差叠加进行了分析。成本数据库描述了形状特征、公差范围、加工和装配成本之间的关系。将公差综合问题转化为叠加条件下的组合优化问题。将遗传算法应用于这些问题的求解。讨论了编码方法和遗传算子。通过齿轮箱的公差综合对该算法进行了评价。结果表明，所提出的基于遗传算法的公差综合方法可以在合理的时间内找到最优的公差分配方案。

项目成果

金井 理,高橋秀智,小野塚守: "GAによる組立品の精度設計" 日本機械学会第72期通常総会講演会講演論文集. IV. 469-470 (1995)

Osamu Kanai、Hidetomo Takahashi、Mamoru Onozuka：“使用 GA 的组装产品的精度设计”日本机械工程师学会第 72 届普通大会记录 IV 469-470。

小野塚守,金井 理,高橋秀智: "組立品の精度設計システムの開発(第2報)-加工・組立を考慮した公差分配手法の開発-" 1995年度精密工学会春季大会学術講演論文集. 837-838 (1995)

Mamoru Onozuka、Osamu Kanai、Hidetomo Takahashi：“组装产品精密设计系统的开发（第二次报告）-考虑加工和组装的公差分布方法的开发-”1995年日本精密工程学会春季会议记录，837 -838（ 1995)

Takenori YAMAMOTO,Hidetomo TAKAHASHI and Satoshi KANAI: "Development of the Flexible Adjustment Cell for Mechanical Assembly (1st report) -System Structure and Micro Positional Adjustment for the bolt-fastened component-" Proc.of 1992 Japan Society for Pr

Takenori YAMAMOTO、Hidetomo TAKAHASHI 和 Satoshi KANAI：“用于机械装配的柔性调整单元的开发（第 1 次报告）-螺栓紧固部件的系统结构和微位置调整 -”Proc.of 1992 日本工业学会

Mamoru ONOZUKA,Hidetomo TAKAHASHI and Satoshi KANAI: "Tolerance Synthesis System for Mechanical Assembly (1st report) -Quantitative Relation between Tolerances on the components and Assembling Deviation-" Proc.of 1994 Japan Society for Precision Engineeri

Mamoru Onozuka、Hidetomo TAKAHASHI 和 Satoshi KANAI：“机械装配公差合成系统（第 1 次报告）-零件公差与装配偏差之间的定量关系-”Proc.of 1994 日本精密工程学会

Satoshi KANAI,Hidetomo TAKAHASHI and Mamoru ONOZUKA: "Genetic Algorithm for Tolerance synthesis in Mechanical Assemblies" Proc of the 72nd JSME Spring Annual Meeting. 469-470 (1995)

Satoshi KANAI、Hidetomo TAKAHASHI 和 Mamoru Onozuka：第 72 届 JSME 春季年会的“机械装配中公差综合的遗传算法”会议记录。