Linkage-reinforcing and reverse self-locking type mechanical gripper

The utility model relates to a linkage-reinforcing and reverse self-locking type mechanical gripper, comprising a transmission disc, a first rotary shaft, a second rotary shaft, a third rotary shaft, a fourth rotary shaft, first push rods, a second push rod, an adjusting nut, a transition rod, gripping fingers, a palm part, a gripping position positioning block, an opening position positioning block and a hydraulic motor. The three first symmetrical push rods are connected with the transmission disc, the second push rod is connected with the first push rods, the second push rod is connected with the transition rod, the gripping fingers are connected with the transition rod and the palm part, and the gripping position positioning block, the opening position positioning block and the hydraulic motor are respectively mounted on the palm part. According to the linkage-reinforcing and reverse self-locking type mechanical gripper, the structure is simple, the design is reasonable, a symmetrical structural form is adopted, the gripping fingers are enabled to obtain the reinforcing effect in the clamping state, and also realize reverse self-locking, the safety and reliability are achieved, the clamping and opening size can be changed by adjusting the length of the push rods and the position of the opening position positioning block, the application range is wide, all adjusting mechanisms are arranged at the back of the palm part, the clamping space is large, and a monitoring system can be mounted conveniently.