Flexible anti-loose pressing plate

The utility model relates to a flexible anti-loose pressing plate for clamping parts on a numerical control milling machine, which comprises a cushion block, a pressing plate module and a supporting seat, and a T-shaped connecting piece is fixed on the side surface of the cushion block; the pressing plate module comprises a pressing screw rod, a circular pressing plate, a sleeve top cover, a sleeve, a spring, an annular guide nut, a cylindrical pin, a connecting circular ring, an annular bottom plate and a sliding block, and the supporting seat comprises a supporting screw rod, a fixing nut, an adjusting screw rod, a threaded locking push block, a supporting base and a T-shaped piece. The T-shaped connecting piece on the cushion block is located in the first T-shaped connecting groove of the pressing plate module connecting ring, and the T-shaped piece of the supporting base is located in the second T-shaped connecting groove of the pressing plate module connecting ring. According to the utility model, the cu