1, uses and works for aluminum doors and windows, aluminum doors and windows insulated Corner; through stamping process, make profiles deformation. Achieved by deforming force profiles connected to corner codes. 2, features (1) double-knives, double position adjustable angle code once "different tool position" Corner processing of different profiles, without having to customize the tool. Saving time by custom and custom fees (2) the primary positioning mechanism can lift, reducing the discharge, reclaiming time is reduced every corner groups working hours (when large sash Corner is particularly evident) (3) Auxiliary positioning device adjustment and side positioning device using linkage, saving adjustment time production preparation; (4) mechanical mechanism to ensure that both sides of the Corner knife synchronized feed to prevent dislocation corner of the window; control and motivation (5) of the machine only compressed air, fewer points of failure, easy maintenance and repair