Gripper structure

A gripper structure comprising:

• a screw-rod main body extended along a first direction;
• a first rotatory nut and a second rotatory nut sleeved on two sides of the screw-rod main body, respectively, and bilaterally symmetrical to each other;
• a first driving module connected to the first rotatory nut, and configured to drive the first rotatory nut to rotate and displace relative to the screw-rod main body in the first direction, wherein the first rotatory nut is allowed to pass through a midline of the screw-rod main body;
• a second driving module connected to the second rotatory nut, and configured to drive the second rotatory nut to rotate and displace relative to the screw-rod main body in the first direction, wherein the second rotatory nut is allowed to pass through the midline of the screw-rod main body;
• and
• a first clamping element and a second clamping element connected to the first rotatory nut and the second rotatory nut, respectively, wherein when the first driving module drives the first rotatory nut or/and the second driving module drives the second rotatory nut, the first clamping element and the second clamping element are relatively displaced in the first direction and cooperated with each other to achieve a clamping operation.