Composite angle profile positioning and clamping device

The invention discloses a composite angle profile positioning and clamping device which comprises a supporting frame and a first angle positioning assembly used for positioning the position of the bottom face of a composite angle profile. The second angle positioning assembly is used for positioning the position of the surface, adjacent to the bottom surface, in the composite angle profile; the first pressing assembly is rotatably mounted on the supporting frame; and the second pressing assembly is used for pressing the composite angle profile to the second angle positioning assembly. By means of the composite angle profile positioning and clamping device, the composite angle profile can be positioned and clamped, the positioning process is convenient and easy to operate, and the positioning process of the composite angle profile is simplified, so that the composite angle profile is conveniently machined, and the machining cost is reduced. Machining can be completed through any boring and milling machine tool