183運(yùn)籌管理 operations management ch(1)-文庫吧
2025-01-04 07:48 本頁面
【正文】 chines linked by automated material transfer ? Perform without need for human attendance ? Used to produce an entire ponent ? Also called fixed automation or hard automation ? Used when product demand is high and stable 13 Automated Production Systems ? Automated Assembly Systems ? Automated assembly machines linked by automated material transfer ? Operations are ponent insertion and joining ? Produce major assemblies or plete products ? Often use standard (lower cost) robots ? Product design appropriate for assembly by humans is not fitting for automated assembly 14 Redesigning Products for Automated Assembly ? Reduce the amount of assembly required ? Reduce the number of fasteners required ? Design ponents to be automatically delivered and positioned ? Design products for layered assembly and vertical insertion of parts ? Design parts so that they are selfaligning ? Design products into major modules for production ? Increase ponent quality to avoid machine jams 15 Automated Production Systems ? Flexible Manufacturing Systems (FMS) ? Kits of materials/parts for a product are loaded on the materialshandling system ? Code is entered into puter identifying product and its location in the sequence ? Each production machine (without a worker): ? Receives settings/instructions from puter ? Automatically loads/unloads required tools ? Carries out its processing instructions ? Product automatically transferred to next machine 16 Flexible Manufacturing System (FMS) Machine 1 Tools X X Machine 2 Tools X X Machine 3 Tools X X Computer Worker X X X X X X X Unload Load Pallet Transfer System Parts Pallet with workpiece attached Workpiece in queue 17 Automated Production Systems ? Automated Storage amp。 Retrieval Systems (ASRS) ? Receive orders for materials from anywhere in operations ? Collect the materials from locations in warehouse ? Deliver the materials to workstations in operations ? Three major elements of ASRS are: ? Computers and munication systems ? Automated materials handling/delivery systems ? Storage and retrieval systems in warehouse 18 Automated Production Systems ? Automated Storage amp。 Retrieval Systems (ASRS) ? Main benefits of ASRS are: ? Increased storage capacity ? Increased system throughput ? Reduced labor costs ? Improved product quality 19 Software Systems for Automation ? Three “plex” puterbased systems ? ComputerAided Design and ComputerAided Manufacturing (CAD/CAM) ? ComputerIntegrated Manufacturing (CIM) ? Enterprise Resource Planning (ERP) 20 Software Systems for Automation ? ComputerAided Design and ComputerAided Manufacturing (CAD/CAM) ? CAD/CAM is a merger of two systems, CAD and CAM (described next) ? It is the automation of the transition from product design to manufacturing 21 Software Systems for Automation ? ComputerAided Design (CAD) ? Concerned with the automation of certain phases of product design ? Use of puter in interactive engineering drawing and storage of designs ? CAD systems are installed to: ? Increase designers’ productivity ? Improve the quality of designs ? Improve product standardization ? Improve design documentation ? Create a manufacturing database 22 Software Sys
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1