Fixing clamp for angle aluminum supporting piece

The fixing clamp for the angle aluminum supporting piece comprises a workbench, a first fixing module, a second fixing module and a third fixing module, the first fixing module, the second fixing module and the third fixing module are arranged on the workbench, and the first fixing module, the second fixing module and the third fixing module are sequentially arranged on the workbench from left to right. The first fixing module comprises a first mounting seat and a first pressing assembly, the first pressing assembly is located at the right end of the first mounting seat, and the first pressing assembly can press and fix a to-be-machined part on the first mounting seat. The first fixing module, the second fixing module and the third fixing module are arranged to fix and position the three to-be-machined faces of the angle aluminum supporting piece, the stability of the angle aluminum supporting piece in the machining process can be effectively improved, and therefore the machining precision and the product mac