Development of an automatic tool changer (ATC) system for the 3-axis computer numerically-controlled (CNC) router machine: Support program for the productivity and competitiveness of the metals and engineering industries

During machining operations, user safety is a big factor need to consider. The more interaction of the user with the machine, the more the user is prone to accident due to mechanical or tool failures. Like in CNC systems, especially in milling and router machines, user interaction can be seen during manual tool change operations. This study presents the development of an automatic tool changer for the 3-axis computer numerically-controlled (CNC) router machine of the Metals Industry Research and Development Center (MIRDC). ATC reduces the cycle time of tool-change operations, thus, improving the machine productivity. Furthermore, ATC also ensures the user´s safety during tool change operations. It allows complete machining where different toolings are required to make different operations like cut, engrave, drill and mill. This includes the use of a pneumatic or quick-change electrospindle and an ISO-20 tool holder system. The tool holder system makes the CNC router adaptable and flexible to different routing operations.