Buffering cutting tool bit

The utility model discloses a buffering cutting tool bit. The tool bit comprises a tool bit body, a connecting seat and a buffer mechanism, a containing cavity is defined in the tool bit body. The connecting seat is mounted in the accommodating cavity; the connecting seat is provided with a mounting channel which is connected with an external rotor; the buffer mechanism is connected between the tool bit body and the connecting base and used for providing elastic acting force for the tool bit body, so that when the tool bit body makes contact with a to-be-cut material, the tool bit body can move towards the connecting base along the containing cavity by a stroke of a preset distance. Damage of counter-acting force of materials to be cut to the driving mechanism and the tool bit can be reduced, and the service life of the tool bit and the service life of the driving mechanism are prolonged. 本实用新型公开了一种缓冲切削刀头，包括刀头本体、连接座及缓冲机构，刀头本体内部限定出容纳腔，连接座安装在所述容纳腔内，且所述连接座具有与外部转子实现连接的安装通道，所述缓冲机构连接在所述刀头本体和所述连接座之间，用于向所述刀头本体提供弹性作用力