Tool clamping mechanism for multi-layer composite coating on surface of cutter

The utility model discloses a tool clamping mechanism for multilayer composite coating on the surface of a cutter, which belongs to the technical field of cutter clamping and comprises a circular plate, fixing rods are welded on two sides of the bottom of the circular plate, a motor is fixedly mounted in the center of the top of the circular plate, and a circular cover is fixedly mounted at the output end of the bottom of the motor through a rotating shaft. The circular cover is located below the circular plate, arc-shaped clamping blocks are fixedly installed on the two sides of the interior of the circular cover through springs, a pull rod is welded to the center of one side of each arc-shaped clamping block, and one end of each pull rod penetrates to the outer side of the circular cover; according to the technical scheme, through the arrangement of the water spraying pipe, the spraying head and the water pump, when the temperature of the coated cutter is high, a worker can control the water pump to work, t