Split mounting type assembly fixture

The utility model relates to a split mounting type assembly fixture, especially relates to a assembly fixture for assembling components of vehicles or airplanes and is an improvement of the frame structure of the assembly fixture. The split mounting type assembly fixture comprises a grooved three-dimensional section steel rectangle frame, a grooved three-dimensional section steel strengthening component, a grooved three-dimensional section steel localization component, bolts and nuts. Wherein the grooved three-dimensional section steel strengthening component is arranged at the inner angle of the grooved three-dimensional section steel rectangle frame and forms 45 DEG angle with the grooved three-dimensional section steel rectangle frame, which is fixed by screw thread pin bolts and nuts. The grooved three-dimensional section steel localization component is arranged on the grooved three-dimensional section steel rectangle frame, which is fixed by bolts and nuts, the grooved three-dimensional section steel localization component and the grooved three-dimensional section steel rectangle frame are arranged with a vertical angle or an oblique angle. The utility model has the advantages that the frame of the assembly fixture can be fast formed because the rectangle frame, the strengthening component and the localization component use grooved three-dimensional section steel, thereby shortening manufacturing cycle, making the grooved three-dimensional section steel have reconfigurability, reducing material waste, improving utilization ratio of storage space, and decreasing fabricating cost.