Profile processing fixing device

The utility model belongs to the technical field of profile machining, and particularly relates to a profile machining fixing device which comprises a base, a limiting assembly is installed at the position, close to one end, of the upper portion of the base, and an extrusion assembly is correspondingly installed on one side of the limiting assembly on the surface of the base. The limiting assembly comprises an L-shaped baffle and a lengthened bolt, the lengthened bolt is spirally inserted into the upper surface of the L-shaped baffle, and threaded grooves corresponding to the lengthened bolt are formed in the surface of the base at equal intervals. The limiting assembly above the base is used in cooperation with the extrusion assembly, one end of a profile is attached to the inner position of the L-shaped baffle, the traction rod is held to drive the arc-shaped clamping plate to rotate relative to the base with the shaft base as the axis, and due to structural limitation of the arc-shaped clamping plate, the