High -effect powerful vice that is fit for multiform form work piece centre gripping

The utility model provides a high -effect powerful vice that is fit for multiform form work piece centre gripping, including the vice basement seat and the seat that moves about, the seat that moves about sets up on vice basement seat, and the one end of the seat that moves about connects with the thread baseball, is provided with the V -arrangement clamping piece on the terminal surface of the other end, is provided with the cover on the vice basement seat in the thread hole of thread stick periphery, and vice basement seat is provided with half month type clamping piece of two activities in the one side for the thread hole, half month type clamping piece and vice base base active connections. The utility model discloses can be applicable to the centre gripping of multiple shape (as circular, square) work piece, the clamping -force degree is big, avoids the roll -off of work piece.