Measuring and positioning tool for automobile part machining

The utility model discloses a measuring and positioning tool for automobile part processing, which at least comprises a workbench, two symmetrical fixing plates are fixed on the upper surface of the workbench, a lead screw is arranged between the two fixing plates in a penetrating manner, one end of the lead screw penetrates through the fixing plates and is fixed with a turntable, and the other end of the lead screw penetrates through the turntable. Two screw nut seats which are symmetrical in position and can linearly move along the screw rod are arranged on the screw rod located between thetwo fixing plates, a fixing assembly is fixed to the tops of the screw nut seats and at least comprises a first vertical plate and a second vertical plate which are symmetrical in position, a first arc-shaped fixing plate is fixed to the first vertical plate, and a second arc-shaped fixing plate is fixed to the second vertical plate. Two connecting rods are arranged on the second vertical plate ina penetrating mode, fixin