Modular gripper

A modular gripper comprising:

• a main fixing plate having two docking ends opposite to each other in a first direction;
• a first extension plate and a second extension plate, bilaterally symmetrical to each other and detachably docked to the two docking ends of the main fixing plate through a first connection component and a second connection component, respectively, in the first direction;
• a driving module disposed on the main fixing plate;
• a first screw rod and a second screw rod bilaterally symmetrical to each other, disposed on the main fixing plate and arranged concentrically in the first direction, wherein the first screw rod comprises a first driving end and a an extension end, the second screw rod comprises a second driving end and a second extension end, and the first driving end and the second driving end face each other in the first direction and are connected to the driving module, wherein the first extension end and the second extension end are disposed opposite to each other in the first direction;
• a first extension screw and a second extension screw bilaterally symmetrical to each other, wherein the first extension screw is detachably connected to the first extension end, and a thread of the first extension screw is continuously connected with a thread of the first screw rod, wherein the second extension screw is detachably connected to the second extension end, and a thread of the second extension screw is continuously connected with a thread of the second screw rod;
• and
• a first nut and a second nut bilaterally symmetrical to each other, and sleeved and matched to the first screw rod and the second screw rod respectively, wherein when the first screw rod and the first extension screw are driven by the driving module to rotate synchronously, the first nut is allowed to displace relative to the first screw rod and the first extension screw in the first direction, wherein when the second screw rod and the second extension screw are driven by the driving module to rotate synchronously, the second nut is allowed to displace relative to the second screw rod and the second extension screw in the first direction, thereby the first nut and the second nut are close to or far away from each other to achieve a clamping operation.