Assembly frame structure of wooden casement window and corner assembly method

A corner assembly method for a wooden casement window, comprising the following steps:

• a) processing a profile section needing to be corner-assembled to be a cross section of 0° to 180° according to an angle requirement, and milling a corner assembly installation groove and a round tenon rod hole in corner end surfaces of a corresponding profile;
• b) installing two half corner assemblers in positioning notches at cross sections of 0° to 180° of adjacent profile frame strips respectively, and fastening and connecting the half corner assemblers and end surfaces of the profile frame strips by means of a screw fastening piece;
• c) coating a round tenon rod of one of the profile frame strips with an end surface adhesive, and then inserting a round tenon rod into the hole;
• and
• d) during corner assembly, inserting a side edge of an I-shaped fastening piece into a plug notch of a fixing substrate in a corner assembler of a profile at one side, calibrating round tenon rods of two profile frame strips, round tenon rod holes and corner assemblers, fastening by means of fastening bolts extending out of holes in vertical baffles of the two half corner assemblers through rotation, and meanwhile, positioning and inserting the round tenon rods corresponding to profile corners.