Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003.最新文献_第5页

Real-time scheduling for multi headed placement machine 多头贴片机实时调度

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217199

M. Ayob, G. Kendall

{"title":"Real-time scheduling for multi headed placement machine","authors":"M. Ayob, G. Kendall","doi":"10.1109/ISATP.2003.1217199","DOIUrl":"https://doi.org/10.1109/ISATP.2003.1217199","url":null,"abstract":"This paper proposes a methodology for real-time scheduling to sequence the pickup and placement of component on multi headed placement machines in printed circuit board (PCB) assembly. The latest technology of surface mount device (SMD) placement machines have a smart feeder carrier that automatically identifies the exact location of each component type on the feeder slot, detects component's missing from the component feeders (and continues working with other component types) and allows a component to be reloaded during a pick and place operation without stopping the operation. Assuming that the components on the feeder carrier may be misplaced or some of the required components are missing, we generate an initial schedule using a greedy constructive heuristic by only considering the available placement points. The initial solution can immediately be used to assemble components for the first PCB. While the placement machine is assembling components, we employ the CPU free time (whilst the robot arm is moving) to improve the initial schedule by using a randomised hill climbing search technique. Thus, the subsequent PCB's will use the improved schedule. Our experimental result on two data sets show that we gain 58.79% and 76.69% (respectively) improvement on assembly cycle time over the initial schedule.","PeriodicalId":101913,"journal":{"name":"Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126877286","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: 18

Control strategies for fine positioning via tapping 攻丝精细定位控制策略

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217211

W.H. Huang

引用次数: 2

Hollow shape extraction: geometric method for assisting process planning of mold machining 空心形状提取:辅助模具加工工艺规划的几何方法

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217183

M. Inui, T. Miyashita

引用次数: 10

A scheduling approach to assembly sequence planning 装配序列规划的一种调度方法

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217195

C. Del Valle, M. Toro, E. Camacho, R. M. Gasca

引用次数: 10

Decision support system in a design for assembly and desassembly methodology 装配与拆卸设计中的决策支持系统

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217214

C. Mascle

引用次数: 4

Manipulating deformable linear objects: characteristic features for vision-based detection of contact state transitions 操纵可变形的线性对象:基于视觉的接触状态转换检测的特征特征

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217212

Jürgen Acker, Dominik Henrich

引用次数: 14

A recursive tolerancing method with sub-assembly generation 一种具有子装配生成的递归公差方法

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217217

H. Mejbri, B. Anselmetti, B. Mawussi

引用次数: 12

Improvement of trajectory tracking for industrial robot arms by learning control with B-spline 用b样条学习控制改进工业机械臂轨迹跟踪

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217222

H. Ozaki, K. Hirano, Makoto Iwamura, Chang-Jun Lin, T. Shimogawa

引用次数: 7

Rotational force-feedback wrist 旋转力反馈手腕

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217213

N. Cauche, A. Delchambre, P. Rouiller, P. Helmer, C. Baur, R. Clavel

{"title":"Rotational force-feedback wrist","authors":"N. Cauche, A. Delchambre, P. Rouiller, P. Helmer, C. Baur, R. Clavel","doi":"10.1109/ISATP.2003.1217213","DOIUrl":"https://doi.org/10.1109/ISATP.2003.1217213","url":null,"abstract":"Force-feedback structures are mechanical structures that can generate forces to restore to the user a tactile feeling corresponding to the world in which he is manipulating an object. This paper presents the mechanical design of a 3-rotational-degrees-of-freedom (DOF) wrist able to produce force feedback. The wrist, plugged on an existing 3-translation-DOF Delta force-feedback structure (called Delta haptic device), yields a 6-DOF force-feedback structure. The wrist comprises a stylus which is the interface with the user. The kinematic chain of the wrist is serial and composed by a Cardan corresponding to the pitch and the yaw, followed by a rotational joint for the roll. The originality of the wrist comes from the parallel actuation of the Cardan. The advantage of such an actuation is to provide a torque with low inertia and low friction less depending on rotations. The direct geometrical model of the wrist has been implemented, as well as the management of torques and currents applied. Several tests performed show the limit of the actuation of the roll compared with the very promising parallel actuation of the Cardan.","PeriodicalId":101913,"journal":{"name":"Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003.","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122962604","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

Task-based modelling and configuration of assembly workstations 基于任务的装配工作站建模与配置

Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003. Pub Date : 2003-07-10 DOI: 10.1109/ISATP.2003.1217228

N. Lohse, H. Hirani, S. Ratchev

引用次数: 3