Flexible clamping device

A flexible clamping device, comprising a base, a sleeve, a support, four adjusting screws, an adjusting ring, a spring, a support frame, a limiting screw, a mandrel, a flange, a rotating shaft, a pinion, a lock screw and an adjusting shaft, wherein

• the sleeve is immovably fixed on the base, the adjusting shaft is connected with the mandrel and the sleeve respectively, the mandrel is fixed on an upper end face of the adjusting shaft, and a bottom outer wall of the adjusting shaft is in small clearance fit with an inner wall of the sleeve;
• the lock screw is installed on an upper right side wall of the sleeve, the pinion is installed an upper left side wall of the sleeve via the rotating shaft, saw teeth are provided on the side wall of the adjusting shaft, and the pinion is configured to be engaged with the side teeth of the adjusting shaft;
• a 3 mm gap is provided in the upper right side wall of the sleeve, threads are provided on one side of the gap, and the lock screw penetrates through the gap and is in threaded connection with the threads on the other side of the gap;
• the support is fixed on the base, a bottom inner wall of the adjusting ring is in threaded fit with a middle outer wall of the support, and the adjusting ring is configured to move up and down on the support;
• the four adjusting screws are installed on a side wall of the adjusting ring, the front end faces of the adjusting screws are configured to press an outer wall of the support, and the adjusting ring is fixed at a certain position of the support;
• the support frame is sleeved on the support, the flange is fixed on an upper end face of the support frame, and two symmetrical vertical grooves are formed in upper side walls of the support frame;
• the limiting screw is installed on the support;
• the spring is arranged on the support in a penetrating manner, two ends of the spring are connected with the support frame and the adjusting ring respectively, and the adjusting ring supports the support frame via the spring;
• the bottom inner wall of the adjusting ring is in threaded fit with the outer wall of the support.