Today, with the increasing interest and demand for high value-added industries including the global automobile and aerospace industries, the demand for line-centers with excellent performance capable of responding to the production system for producing high-value-added products is rapidly increasing...
Today, with the increasing interest and demand for high value-added industries including the global automobile and aerospace industries, the demand for line-centers with excellent performance capable of responding to the production system for producing high-value-added products is rapidly increasing. In addition, emerging countries such as India, China, and Vietnam are investing in smart factory facilities to produce high value-added products, and in particular, compact and high-performance line centers are being imported and used as core equipment for production lines. The line center is a type of horizontal machining center and can overcome the limitation of the transfer radius of line automation robots, which is a disadvantage of vertical machining centers. And line center is optimized for factory facilities through high space utilization and chip discharge. With this advantage, the line center is manufactured with a narrow facility width by focusing on factory automation and space utilization, and it is used in a form that enables linearization and automation of the production process by simultaneously connecting several line centers. The line center was developed by developed countries as a multi-axis line center that processes multiple workpieces at the same time in a single machine by installing multiple spindles and an automatic tool changer (ATC) on one machine. In addition, as the use of high-strength composite materials such as carbon fiber reinforced plastics (CFRP) that can simultaneously satisfy the weight reduction and safety of vehicles emerging in the automotive industry is increasing, the main spindle used in high rigidity spindle is used. The high rigidity spindle is necessary to develop a compact multi-axis line center that can flexibly produce high value-added products such as automobiles and aviation parts with complex shapes. The multi-axis line center has dramatically improved productivity, but as the number of spindles increases, the weight increases, and the heat generation and vibration generated by each spindle decreases the machining precision, resulting in a problem that improves the machining precision. In order to solve this problem, a study on the structural analysis of the multi-axis line center is required. In this study, structural stability was analyzed through structural analysis prior to the development of a compact multi-axis line center. And, design modification for column and bed of the line center was performed reduce the weight and increase the stiffness of the compact multi-axis line center by performing shape lightweighting through the results of structural analysis.
Today, with the increasing interest and demand for high value-added industries including the global automobile and aerospace industries, the demand for line-centers with excellent performance capable of responding to the production system for producing high-value-added products is rapidly increasing. In addition, emerging countries such as India, China, and Vietnam are investing in smart factory facilities to produce high value-added products, and in particular, compact and high-performance line centers are being imported and used as core equipment for production lines. The line center is a type of horizontal machining center and can overcome the limitation of the transfer radius of line automation robots, which is a disadvantage of vertical machining centers. And line center is optimized for factory facilities through high space utilization and chip discharge. With this advantage, the line center is manufactured with a narrow facility width by focusing on factory automation and space utilization, and it is used in a form that enables linearization and automation of the production process by simultaneously connecting several line centers. The line center was developed by developed countries as a multi-axis line center that processes multiple workpieces at the same time in a single machine by installing multiple spindles and an automatic tool changer (ATC) on one machine. In addition, as the use of high-strength composite materials such as carbon fiber reinforced plastics (CFRP) that can simultaneously satisfy the weight reduction and safety of vehicles emerging in the automotive industry is increasing, the main spindle used in high rigidity spindle is used. The high rigidity spindle is necessary to develop a compact multi-axis line center that can flexibly produce high value-added products such as automobiles and aviation parts with complex shapes. The multi-axis line center has dramatically improved productivity, but as the number of spindles increases, the weight increases, and the heat generation and vibration generated by each spindle decreases the machining precision, resulting in a problem that improves the machining precision. In order to solve this problem, a study on the structural analysis of the multi-axis line center is required. In this study, structural stability was analyzed through structural analysis prior to the development of a compact multi-axis line center. And, design modification for column and bed of the line center was performed reduce the weight and increase the stiffness of the compact multi-axis line center by performing shape lightweighting through the results of structural analysis.
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