As for blisk blade profile polishing, the five-axis numerical control + flexible grinding head + elastic grinding tool polishing process equipment has advantages of high precision, little interference, good adaptivity...
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As for blisk blade profile polishing, the five-axis numerical control + flexible grinding head + elastic grinding tool polishing process equipment has advantages of high precision, little interference, good adaptivity, etc.;in order that the elastic grinding tool (abrasive cloth wheel) can effectively fit in with the blade profile in the polishing process and polishing quality and efficiency can be improved, a polishing path programming method of the elastic grinding tool was studied, feed mode of the elastic grinding tool and parametric method of the blade profile were proposed, and calculation methods of offset surface, polishing spacing, polishing step size and cutter-axis vector were given;this polishing path programming method makes it possible for the flexible spindle mechanism keeps a reasonable pose during the polishing process so that the elastic grinding tool can not only effectively fit in with the blade profile but also the polishing force direction of the elastic grinding tool is basically identical with normal vector direction of the polishing point;the polishing test results indicate that: After polishing, blade surface roughness is smaller than 0.4 mu m and blade profile tolerance is within the tolerance zone, thus satisfying technical requirements and indicating that the technology proposed in this paper can satisfy blisk blade profile polishing requirements.
This article researches AMR environment modeling, path programming, as well as its motion controlling in accordance with AMR structural model of experimental reference system under dynamic uncertainty surround, based ...
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This article researches AMR environment modeling, path programming, as well as its motion controlling in accordance with AMR structural model of experimental reference system under dynamic uncertainty surround, based on summarizing advanced theories about intelligent navigation on board and aboard. It establishes theory foundation for going a step further researching path programming and motion controlling of AMR.
Mechanical industry is facing major challenges in the 21st century. Products with high quality material, more complex geometry is challenging productivity and cost efficiency, which represents profit in today's ec...
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Self-reconfigurable robot is a typical modular robot, which is composed of a large number of identical modules based on cell design idea. Perform a job by combining it as a whole while working. At present, the carryin...
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ISBN:
(纸本)9798350388350;9798350388343
Self-reconfigurable robot is a typical modular robot, which is composed of a large number of identical modules based on cell design idea. Perform a job by combining it as a whole while working. At present, the carrying capacity of the self-reconfigurable robot is limited and the degree of intelligence is not high, which leads to the limited working ability of the self-reconfigurable robot. Therefore, an intelligent single-module self-reconfigurable robot is designed in this paper. Firstly, a high stiffness bidirectional butt locking mechanism is designed for the connection between modules. Secondly, aiming at the task of quick survey of fire rescue environment, the identification and distance detection of ignition point and rescue personnel are designed in the fire environment. The BI_A* algorithm is used to complete the single-module path planning of the selfr-econfigurable robot, and the Multi_BI_A* algorithm is proposed for the optimal path planning of the collection of multimodule self-reconfigurable robots. Finally, the functional verification of the prototype is completed by using a single threeroom model experiment platform.
Variant design is an effective mean to derive individual product rapidly. This paper focuses on the parameter transferring issue of assembly variant design, that is, to identify a parameter transferring path with mini...
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ISBN:
(纸本)9781424448692
Variant design is an effective mean to derive individual product rapidly. This paper focuses on the parameter transferring issue of assembly variant design, that is, to identify a parameter transferring path with minimum uncertainty. Parameter constraint network and uncertainty characteristic were presented. A measure of undefined parameter information was employed to describe the complexity of identifying a parameter value during variant design. Based on this, a modified path complexity of parameter transferring was formulated. By calculating path complexity of each potential transferring process, the parameter transferring path with minimum path complexity can be found. This analysis is convenient to make full use of customized information to design individual product so as to increase the rationality and efficiency of parameter valued. We illustrate our approach with examples.
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