Tool clamping assembly and sharpener

A tool clamping assembly used for a sharpener, wherein the sharpener is provided with a sharpening frame, and the tool clamping assembly comprises:

• an arm body, a first end of the arm body is connected with the sharpening frame, and the arm body is provided with a top pin and a driving member, the driving member is configured to drive the top pin to move along an axial direction of the arm body, wherein the driving member is a driving nut;
• a clamping arm component, comprising a first clamping arm and a second clamping arm,
• the first clamping arm and the second clamping arm are mirror symmetric and are connected by a rotation axis, the rotation axis is connected to a second end of the arm body,
• wherein torque is applied to the two clamping arms such that the two clamping arms are configured to jointly clamp the top pin at a first end of the first clamping arm and a first end of the second clamping arm;
• when the top pin is moved, the first clamping arm and the second clamping arm are rotated synchronously, so that a second end of the first clamping arm and a second end of the second clamping arm are closed to each other to clamp the tool or separate from each other to release the tool;
• wherein the arm body comprises a first arm body, a second arm body, and a rotating sleeve;
• a first end of the first arm body is connected with the sharpening frame, a first end of the second arm body is connected to the top pin, and the rotating sleeve is fixedly connected to the second end of one of the two arm bodies and threaded to the second end of the other arm body;
• the top pin and the driving nut are respectively located on the second arm body.