Abstract
A robotization of assembly is the real implementation of Industry 4.0 in the furniture industry. The robotization objective is to obtain favorable values of production process parameters (performance, productivity, quality) and to improve human wellbeing at work. Our aim was to present and compare the quality parameters of a selected furniture production process, performed in a very long series, containing more than 30 thousand products. The analysis included the results of the long-term measurements of the quality level of upholstery frames produced by the modified and improved, on the basis of operational conclusions, robotized line for the serial production of upholstery frames and by the simultaneously used nonrobotic line for assembly of frames of the same construction. The results obtained show that robotized assembly leads to a much lower percentage of defective products than in the case of the nonrobotic technology, the causes and types of defects in the products are also different, and it is easier to prevent these defects and remove them. The cognitive findings identified problems and challenges, not found in traditional technologies, caused by the using of manufacturing robots in furniture production.
Highlights
Robotization in industry is the replacement of human labor with the robotic systems, i.e., cyber-physical devices controlled by computer algorithms and numerous sensors
The advantages of robotic production lines include better process parameters and improved working conditions, especially moving operators away from activities that are dangerous [4], [5]
Robotization is usually perceived through the prism of performance and productivity, but it has a great impact on the level of product quality [8]
Summary
Robotization in industry is the replacement of human labor with the robotic systems, i.e., cyber-physical devices controlled by computer algorithms and numerous sensors. Robotization is usually perceived through the prism of performance and productivity, but it has a great impact on the level of product quality [8]. It is characterized by the elimination of many problems with the repeatability of product quality in the series, but on the other hand, there are completely new challenges in the aspect of quality assurance, not present in technological processes performed by humans. The aim of this paper was the numerical presentation and comparison of quality parameters of an upholstery frame assembly process performed in a very long production series, consisting of over 30 thousand products, and a comparative analysis of the quality results of manual assembly with robotized assembly
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