Die casting machining fixing jig

The utility model discloses a die casting machining fixing jig, and relates to the technical field of fixing jigs, the die casting machining fixing jig is characterized in that the upper end of a jig base is provided with a fixing assembly and a clamp; according to the die casting machining fixing jig, a user fixes first fixing columns and second fixing columns to the upper end of a jig base, the bottoms of connecting blocks at the corners of a die casting are matched with the tops of the four sets of first fixing columns, and meanwhile the outer sides of first reinforcing strips move downwards along the outer sides of the second fixing columns; under the fixing action of a mounting seat, an output end of an air cylinder drives a clamping rod and a clamping head to move downwards, so that a bottom inclined opening and an upper inclined opening are attached to each other, and therefore the top of the die casting is fixed; therefore, the stability of the die casting in the machining process is guaranteed, and t