INTENSIFICATION OF THE TECHNOLOGICAL PROCESS OF PROCESSING BRACKET-TYPE DETAILS
Abstract
The latest trends in the field of mechanical engineering indicate that in a competitive environment, manufacturers are trying to reduce the time to market, while the complexity of manufacturing, the requirements for its accuracy and quality are constantly increasing. In this regard, the introduction of flexible machine tools that provide quick readjustment of parts to different sizes within the specific structural and technological features of the workpieces is urgent. The increase in the range of products at modern machine-building enterprises requires frequent adjustments of production to process the next batch of parts, which raises questions about the economic feasibility of designing and manufacturing special machine tools for parts of a specific size (Bi et al., 2008). Constant updating of the nomenclature of parts due to minor design changes, as well as small batch sizes make the topic of designing, modeling and manufacturing of flexible machine tools relevant and timely. Increasing the flexibility and expanding the technological capabilities of machine tools, reducing the preparatory and final time for their reconfiguration, and therefore, increasing the efficiency of metal-cutting machines is ensured by the development and implementation of quickly reconfigurable functional units (Ivanov, 2019). During the machining operation, the workpiece is re-fixed and the base scheme is changed, both between technological operations and at different facilities within a specific operation, as a result of which the installation error accumulates and leads to a decrease in the accuracy of the relative location of the surfaces of the processed part. At each machining operation, a mandatory check of the position of the part takes place with an unchanged base scheme, which significantly increases unproductive time costs, and, therefore, leads to an increase in the cost of the part, which is unacceptable in the conditions of modern production. Research is aimed at improving the efficiency of processing brackets by intensifying the technological process and introducing flexible machine tools that ensure multi-coordinate processing.
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