2, automated tool clamping mechanism; in the current automated machining production, the more complete tooling system is mainly boring and milling class CNC machine tools with the system (referred to as "TSG" system) and lathe class CNC machine tools with the system (referred to as "BTS" system) two categories, one of which is the tooling system (referred to as "BTS" system). " system) two categories, and now also appeared can be adapted to both CNC turning and CNC boring and milling tooling system. They are mainly composed of the shank of the tool (shank), the connecting rod (shank) and collet and other parts. Tool system provides for the structure of the tool and clamping tool, size series and its connection form. More complete tool systems also include automatic tool changers, tool magazines, tool recognition devices and automatic tool detection devices.