Wyniki wyszukiwania - BazTech

1

Modelling and numerical analysis of assembly system

Budniak Z.

Acta Mechanica et Automatica

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2015

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Vol. 9, no. 3

145--150

EN

The present articles covers a concept of the creation and testing of assembly systems with the use of modern CAD and CAE systems on the example of an assembly system designed for joining parts with circular surfaces that are fitted with positive clearance. The numerical investigations were based on the constructed spatial skeleton pattern of the system. The purpose of the simulation tests was to determine the impact of the measurement and angular inaccuracies of all the elements of the assembly system as well as the inaccuracy of the positioning of the robot’s drives on the positioning accuracy of the parts joined taking into consideration the conditions of assembly in automatic assembly.

2

Modelowanie i analizy układów montażowych za pomocą systemów CAD/CAE

Budniak Z.

Pomiary Automatyka Kontrola

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2014

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R. 60, nr 10

924--928

PL

W artykule przedstawiono nową koncepcję tworzenia i badania układów montażowych za pomocą nowoczesnych systemów komputerowego wspomagania projektowania CAD i obliczeń inżynierskich CAE. Prezentowana metodyka została zilustrowana na przykładzie układu montażowego do łączenia części o powierzchniach obrotowych pasowanych z luzem dodatnim. Wirtualny układ montażowy zbudowano w oparciu o geometrię konstruktywną systemu CAD zgodnie z opracowanym przestrzennym łańcuchem wymiarowym. Zbudowanie takiego układu pozwala na przeprowadzenie badań symulacyjnych montażu z uwzględnieniem niedokładności wymiarowej i kątowej wykonania jego elementów oraz niedokładności pozycjonowania napędów manipulatora montażowego. W artykule przedstawiono przykładowe wyniki badań symulacyjnych.

EN

The article presents a new concept of creating and examining assembly systems using modern systems for computer-aided design CAD and CAE engineering calculations. The design and analysis of an assembly system was based on the block diagram shown in Figure 1. The presented methodology is illustrated on the example of an assembly system for connecting parts of the rotating surfaces adjusted with positive play. The developed simulation model, shown in Figures 2-5, allowed to carry out numerical analysis of the assembly system, based on the spatial dimension chain described by formulas (2-16). The results of these analyzes are shown in Figure 6-9. The virtual simulation model of the assembly system using computer technology of CAD/CAE takes into account many of the real assembly parameters (among other things: the accuracy of manufacture of individual parts and components, precision of positioning of motors driving the moving parts of the assembly, etc.). The benefits of the proposed analytical model are enormous, because it allows to create a very careful evaluation of the creation of constructions of technical systems. The presented method can also reduce the financial outlay for the creation of different kinds of prototypes by their total or partial elimination. The presented simulation results illustrate only selected factors affecting the operation of the assembly.

3

Modernizacja manipulatorów montażowych i transportujących na przykładzie dwuramiennego manipulatora

Krępski M., Pawłowski W.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

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2012

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z. 84[284], nr 2

7--14

EN

In the paper the current pneumatic drive and control system of the manipulator supplying the kitchen knives semi-finished products to the clamping unit of grinder or polisher is described. The possible changes in control system of the manipulator are presented. The current drive and control system has been modernized and the electronic control system has been applied. The OPLC controller as well as appropriate sensors and valve terminal with electromagnetic valves for pneumatic actuators control have been successfully utilized. In conclusions the advantages of the modern control system and flexibility of programming method of the system have been indicated.