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doi: 10.1007/BF02601557pmid: N/A
A number of investigators in the recent past have examined aspects of robot calibration such as model development, data acquisition, and parameter identification algorithms. The large majority of these studies involve either purely analytical work or experiments with a manipulator in a laboratory environment. The purpose of this work is to investigate a calibration procedure for a manipulator in a typical industrial environment.
doi: 10.1007/BF02601558pmid: N/A
This paper examines some of the problems in the planning and designing of a proposed FMS. The aspects discussed include assessing bottlenecks, the material transportation system, job sequencing, manpower required for palletising the components, the number of palletising positions in the load/unload station, the number of pallets which should be provided, the size of buffers, the operation of the system under partial breakdown and the production balance in the system. The proposed FMS was configured to examine the dependence of the system performance on these factors.
doi: 10.1007/BF02601559pmid: N/A
Two new technologies are described to manufacture bare circuit boards. Both methods are dry processes and are additive by nature. The above technologies have advantages over the current methods used to produce circuit boards and will alleviate the total dependency on wet chemical processing by the industry.
doi: 10.1007/BF02601560pmid: N/A
For automated machining systems using cutting tools of indeterminate durability, a method for the determination of the most expedient (optimal) periods for tool replacement is considered. Statistical studies of tool reliability in field conditions are summarised, and analytical representation of durability as a random variable by means of the Weibull distribution is substantiated. Calculations of cutting tool replacement periods for transfer lines illustrate optimisation.
doi: 10.1007/BF02601561pmid: N/A
Extracting information about contact between two convex bodies from the measured force vector is a prerequistie for any fine compliant motion control strategy. Contact information contains the direction and orientation of the contact surface normal, and its relative location and orientation with respect to the compliance reference frame. Frictionless contact is assumed at this stage in the development.
doi: 10.1007/BF02601562pmid: N/A
The concept of distributed architectures for automated manufacturing systems is presented here. A modular architecture for a logical cell-controller is proposed where shopfloor level modules are incorporated in the cell control system so as to allow active co-operation for distributed decision making and control.
doi: 10.1007/BF02601563pmid: N/A
The problem of increasing the reliability and availability in systems for automatic manufacturing is addressed. Based on current reliability concepts a continuous model for failure analysis for manufacturing systems is developed. From the model strategic conclusions are drawn concerning optimum organisation of complimentary parallel lines, sections, buffer zones; etc. The model is also used to discuss availability consequences of hierarchical levels, control strategy and network strategy including product identification. The use of the model is illustrated by a case study.
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