Universal positioning and clamping device

The utility model provides an universal positioning and clamping device, it includes: the T fixed block that appears, it is constructed can place in the T -slot of T -slot processing platform to be provided with the screw hole of its upper surface of perpendicular to along vertical direction downwardly extending, rotatory dog, it is constructed can place on the mesa of processing platform and press from both sides tight screw thread through -hole including turning to the through -hole with at least one, turns to the through -hole and extends along vertical direction and pass whole rotatory dog, presss from both sides tight screw thread through -hole and extends along the horizontal direction and pass whole rotatory dog, the bolt, its by construct can pass rotatory dog turn to the through -hole and with the screw hole of screw -thread fit's mode screw in T shape fixed block, at least one adjusting screw, its by construct can with screw -thread fit's mode screw in and pass rotatory dog at least one press from b