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Development of production cells with regard to physical and cognitive automation: A decade of evolution 关于物理和认知自动化的生产细胞的发展:十年的进化
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942316
Åsa Fasth, S. Mattsson, Tommy Fassberg, J. Stahre, Stefan Hoog, M. Sterner, Thomas Andersson
{"title":"Development of production cells with regard to physical and cognitive automation: A decade of evolution","authors":"Åsa Fasth, S. Mattsson, Tommy Fassberg, J. Stahre, Stefan Hoog, M. Sterner, Thomas Andersson","doi":"10.1109/ISAM.2011.5942316","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942316","url":null,"abstract":"This paper will discuss a company's view and evolution of physical and cognitive automation regarding four product families that have been put in production the past decade. The focus of this paper is on the mindset of the production engineers when changing the assembly cells of the products. Results, from observations and interviews, reveal that both the physical and cognitive automation have been considered when designing new assembly cells at the company. Automation has decreased during time covered by the studies. Further, an evolution in lean production and increased involvement of the operators have been in focus during the last two product cell designs, in order to reach recourse and volume flexibility. Moreover, in order to decrease the product complexity, the engineers always design one cell per product family.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125804177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Finite element simulation of an analogy process for the fine blanking of helical gears 斜齿轮精冲类比过程的有限元模拟
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942332
F. Klocke, M. Zimmermann, V. Backer, H. Wegner
{"title":"Finite element simulation of an analogy process for the fine blanking of helical gears","authors":"F. Klocke, M. Zimmermann, V. Backer, H. Wegner","doi":"10.1109/ISAM.2011.5942332","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942332","url":null,"abstract":"Fine blanking can today be used for the production of spur gears but not for helical gears. Based on a newly developed process principle for the fine blanking of helical gears, an analogy process was set up and investigated in finite element simulations using the software Deform-3D. For the numerical model, the tool components were assumed rigid, while workpiece behavior was modeled as plastic with isotropic strain hardening. Damage initiation was included by using a normalized formulation of the Cockroft and Latham damage criterion. Results show, that sheet thickness and helix angle are key influence factors for the final workpiece properties as well as for the stress distribution in the workpiece during the process. Their influence varies with respect to the tooth section, i.e. tooth flanks and tooth tip.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127452051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Introduction of a competitive and sustainable research environment 引进有竞争力和可持续发展的研究环境
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942368
Ranta Ari, I. Kimmo, N. Hasse, H. A. Paul
{"title":"Introduction of a competitive and sustainable research environment","authors":"Ranta Ari, I. Kimmo, N. Hasse, H. A. Paul","doi":"10.1109/ISAM.2011.5942368","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942368","url":null,"abstract":"In this paper an intelligent research and development (R&D) environment of different CSM (Competitive Sustainable Manufacturing) projects of the Department of Production Engineering (TTE) of Tampere University of Technology (TUT) is presented. The R&D environment will collect a wide variety of research projects and their results together. The research environment simulates an actual factory, which operates according to the CSM philosophy and where the project research topics can be developed and analyzed. The development of the R&D environment was started in 2009 by the FMS 2010 and Pisa projects. The first version of the environment was introduced in connection with the “Tampere Manufacturing Summit 2009” event. The future work and development of the environment will be done by CSM projects of the TTE and KIPPcolla project in cooperation with TTE's Laser Application Laboratory (LAL).","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129690187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Multiple-axis synchronization evaluation for CNC machine tool based on sensorless measurement 基于无传感器测量的数控机床多轴同步评价
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942331
Yong Li, Jing Lin, Xiufeng Wang, Y. Liao
{"title":"Multiple-axis synchronization evaluation for CNC machine tool based on sensorless measurement","authors":"Yong Li, Jing Lin, Xiufeng Wang, Y. Liao","doi":"10.1109/ISAM.2011.5942331","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942331","url":null,"abstract":"Synchronization among the running shafts in a CNC machine tool is always suffered by the speed variation of the drive motor and the vibration of mechanical transmission components. Synchronization error may decrease the manufacturing accuracy. A novel method is proposed to evaluate the synchronization for the shafts by using the built-in sensors in this article, which can be considered as a sensorless evaluation method. The advantage of this method is that no extra sensors are required. At the same time, some advanced signal processing techniques are applied to analyze those signals to discover more information about the synchronization. Experiments are taken on two CNC grinding machines to study on the synchronization among the running shafts. Some spectrum analysis approaches are employed to evaluate the synchronization among the running shafts. The stability of the running process can be clearly described by using those methods. The synchronization error fluctuation is also obtained at the same time, which is of great help to improve the performance of the machine tool.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124228698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A new measuring method for circular motion accuracy of NC machine tools based on dual-frequency laser interferometer 基于双频激光干涉仪的数控机床圆周运动精度测量新方法
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942301
Shanzhi Tang, Zhao Wang, Z. Jiang, Jianmin Gao, Junjie Guo
{"title":"A new measuring method for circular motion accuracy of NC machine tools based on dual-frequency laser interferometer","authors":"Shanzhi Tang, Zhao Wang, Z. Jiang, Jianmin Gao, Junjie Guo","doi":"10.1109/ISAM.2011.5942301","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942301","url":null,"abstract":"A new two-dimensional displacement measurement method to test circular track errors of NC machine tools is proposed, which is based on a dual-frequency laser interferometer. The system resolution can be up to tens of nanometer. This measurement system can inspect the circular track with small radius. And it requires two independent laser interferometers essentially can be simplified to only one laser source now. The measurement system absorbed the optical structure of Michelson interferometer. Reflecting arm end is plane reflecting mirrors and other arm end is corner reflector. The light way realizes 4 times subdivision, which can improve the measuring resolution. The optical setting consists of laser measuring head, 50% beam splitter, two measurement modules, two plane reflecting mirrors, etc. A beam of laser light from the measuring head, is equally split into two beams to measure displacements of X-direction and Y-direction. Under conditions of various feed speeds and radiuses, experiment results show that suggested method is feasible and effective for circular tests of NC machine tools. Its uncertainty of measurement is micron. Moreover, the system structure is simple and easy operation.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115827283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Towards robot systems for small batch manufacturing 面向小批量生产的机器人系统
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942336
A. Pichler, C. Wogerer
{"title":"Towards robot systems for small batch manufacturing","authors":"A. Pichler, C. Wogerer","doi":"10.1109/ISAM.2011.5942336","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942336","url":null,"abstract":"In this paper, we present a prototypical system as platform for a new generation of robotic workers. Dealing with customization, individualization and finally customer driven batch sizes of products of highest quality requires robot technologies that are able to compensate uncertainties inherent in processes and environment. Existing production plants are planned for the majority of variants, but for a significant portion of all products the flexibility of human workers is still required for production. Therefore technologies are required allowing intuitive access to robotic system components without being a robot expert. The main contribution of the paper is a novel framework for robotic workers combining perception, autonomous planning and a user-centered design of human-robot interaction. We also present an industrial interface that allows the operator to immerse into complex industrial robot processes and to transfer task knowledge and strategies for commanding robots on a high-level. The framework and its embedded methods have been implemented and evaluated in a bin picking scenario for small batch sizes.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124021550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Theoretical method to reduce the non-repetitive run-out (NRRO) of angular contact ball bearings 减少角接触球轴承非重复跳动(NRRO)的理论方法
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942313
Zhaohui Yang, Jun Hong, Jian Liu, Yucheng Ding, Micheal Yu Wang
{"title":"Theoretical method to reduce the non-repetitive run-out (NRRO) of angular contact ball bearings","authors":"Zhaohui Yang, Jun Hong, Jian Liu, Yucheng Ding, Micheal Yu Wang","doi":"10.1109/ISAM.2011.5942313","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942313","url":null,"abstract":"As ultra-precision index of bearings, the value of non-repetitive run-out (NRRO) directly influences the rotation precision of rotating mechanism of complex mechanical system. However, the value of NRRO is very difficult to predict and control due to various causes. This paper develops a mathematical model to study the constrictive relationship between the geometrical errors and the NRRO of an angular contact ball bearing based on Hertzian contact theory and solution method of dimensional chain, so as to reduce the NRRO by optimizing the manufacturing process of bearing components. Firstly, based on the motion relationship of parts in bearings and the dimensional chain theory, a kinematic model is built with taking into account the regularities of variation of contact angle under different axial load. In the model, the geometrical errors of rings raceway and balls are described through superposition of sinusoidal function. Secondly, the nonlinear equations of force balance of balls are built based on Hertzian contact theory. Finally, by solving nonlinear equations, the trajectory of rotation center is calculated to quantitatively analyze the NRRO of bearings caused by the geometrical errors of rings raceway and balls. Findings of this paper provide theoretical supports to reduce the NRRO by optimizing manufacturing process of bearing components.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122134422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Observations of applying DFM(A) in MW mechanics and sheet metal work DFM(A)在金属焊接力学和钣金加工中的应用观察
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942317
M. Lohtander, H. Eskelinen, J. Varis
{"title":"Observations of applying DFM(A) in MW mechanics and sheet metal work","authors":"M. Lohtander, H. Eskelinen, J. Varis","doi":"10.1109/ISAM.2011.5942317","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942317","url":null,"abstract":"In this paper, approaches to apply DFM(A) (Design for Manufacturing and Assembly) in practice are reviewed based on both the research results of the areas of MW mechanics and sheet metal work achieved at Lappeenranta University of Technology. These results are supported by a literature review. In this paper, we present five view-points on how to apply DFM(A) in practise in the previously mentioned research areas. The view-points are as follows: applied DFM(A) rules for sheet metal work, utilization of lists and forms to analyze MW constructions, development of traditional design methodologies, development of manufacturing technologies for easy production, integrated DFM(A) approaches which aim to control and manage both the product design process and its costs.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116832932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Milling process study, assuming estimation of cutting force 铣削过程的研究，假设切削力的估计
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942363
V. Gylienė, V. Ostaševičius, A. Sergent
{"title":"Milling process study, assuming estimation of cutting force","authors":"V. Gylienė, V. Ostaševičius, A. Sergent","doi":"10.1109/ISAM.2011.5942363","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942363","url":null,"abstract":"The paper presents results of research of a milling process, which include experimental studies associated with determination of cutting forces. Cutting depth is a parameter that was varied in the course of the measurements. Analytical models were constructed for cutting force prediction on the basis of experimental data obtained for tool geometry, cross-section of removed material layer and cutting regimes. A tool with two inserts was used for milling experiments: during cutting process one insert was removing the material layer, while the other was idle. Analytical models for cutting force evaluation were developed for a single cutting insert. The accuracy of the models was improved by taking into account the specific cutting pressure that was determined experimentally. Chip cross-section varies in the course of the milling process therefore the models allow to estimate cutting forces by adopting the assumption of average chip thickness. Finally, a finite element model was built taking into account the magnitude of material cross-section that is removed during milling operation.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Control of automatic assembly platform for a large unit based on equivalent parallel 基于等效并联的大型机组自动装配平台控制
2011 IEEE International Symposium on Assembly and Manufacturing (ISAM) Pub Date : 2011-05-25 DOI: 10.1109/ISAM.2011.5942320
Jinhua Zhang, Jun Hong, Zhigang Liu, Shaofeng Wang
{"title":"Control of automatic assembly platform for a large unit based on equivalent parallel","authors":"Jinhua Zhang, Jun Hong, Zhigang Liu, Shaofeng Wang","doi":"10.1109/ISAM.2011.5942320","DOIUrl":"https://doi.org/10.1109/ISAM.2011.5942320","url":null,"abstract":"In this paper, an automatic assembly platform based on an equivalent parallel mechanism that includes four parallel precise locators is designed to adjust the position of a large unit during the assembly process. After the kinematics analysis of the platform, a posture calculation method based on a laser tracker is proposed. Additionally, a quintic polynomial is used to determine the part movements. The system uses twelve-axis synchronous control. Finally, experiments show that the platform is valid and efficient and that the final positioning accuracy is 0.1mm.","PeriodicalId":273573,"journal":{"name":"2011 IEEE International Symposium on Assembly and Manufacturing (ISAM)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127550210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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