OPTIMAL SERVOMOTOR SELECTION ALGORITHM FOR INDUSTRIAL ROBOTS AND MACHINE TOOLS NC AXIS
Journal Title: Proceedings in Manufacturing Systems - Year 2014, Vol 9, Issue 2
Abstract
This paper presents a complete calculus algorithm for selecting the optimal servomotors of the kinematic chains included in the numerically controlled axes (NCA) of machine tools (NCMT) and industrial robots (IR). The algorithm can be applied for both type controlled axes, i.e. industrial robots, and machine tools, as well as either rotation axis or translation axis, regardless of their mechanical structure. The presented calculus algorithm includes six major steps: defining the working cycle motion diagram for the operated mechanical system and complementary input data; identifying the static and dynamic forces applied to the driven system during operation and the specific mechanical structure on NCA (i.e. specific transfer ratio of each included mechanism); preliminary selection of the driving servomotor by checking the kinematic criterion; determining of the total resistant equivalent load applied on the driven element; secondary selection of the driving servomotor by checking the static and dynamic criterion; and tertiary selection of the driving servomotor by checking the performance parameters related to full kinematic chain driving (acceleration time, braking time, servomotor's thermal behavior). The motor finally chosen represents the optimum solution for driving the NCA in terms of satisfying all imposed criteria (kinematic criterion, static criterion, dynamic criterion) and complying as well the necessary performance requirements for NCA's electro-mechanic driving system.
Authors and Affiliations
A. Nicolescu, C. Avram, M. Ivan
Keywords
Related Articles
- EP ID EP132249
- DOI -
- Views 90
- Downloads 0
Replacing grinding with hard turning ‒ a solution for green machining
he global competition forces the manufacturing industry players to permanently innovate, thus the pressure for eco-friendly and sustainable products arise. Once with the occurrence of novel geometries, materials and coat...
Solution aiming the technological improvement of worm and star wheel from single screw compressor
Single screw compressors are frequently used due to their constructive simplicity, leading to a lower price. The level of functional noise is also lower than in the case of other compressors. They usually include a centr...
Aspectes regarding optimal design of machine tool feed drives
The paper presents some of the main aspects concerning the design of feed drives of machine tools in optimum conditions. Some general considerations about the optimization vector including a set of parameters are present...
Creep testing of epoxy resin-flax fiber composites
The present study proposes an experimental approach into determining the viscoelastic characteristics of a composite made out of an epoxy-resin matrix with long flax fiber reinforcement. In a first instance, the fabricat...
Workflow for additive manufacturing of an individualized surgical template
Individualized surgical templates are becoming increasingly used in the medicinal field due to their advantages, ensuring better orientation during intervention, decrease of the surgery time and costs, risks of infection...