Window frame cutting device with secured space utilization and dimensional precision and its cutting method

摘要

The present invention relates to a window frame cutting device and a cutting method having secured space utilization and dimensional precision. When cutting a window frame frame mainly formed in a quadrangular cross-section, friction against local areas on the outer four sides of the window frame frame without surface friction By installing the front and rear guide support units each provided with rollers to prevent damage to the outer surface of the window frame frame caused by surface friction, and to reduce the installation space of the workbench, and also between the front and rear guide support units. In order to secure the dimensional precision of the cut window frame frame by providing the upper, lower, left, and right fixing parts that are in close contact with the outer four surfaces of the window frame frame, The rear end of the window frame 2 mounted on the window frame 2 is fixed with a holder 12, and a ball screw 14 connected to the motor 16 and operated to the rear side of the holder 12 is aligned with the window frame 2 A transfer unit 10 that is fixed to be positioned on the top and moves the window frame 2 fixed to the holder 12 horizontally by the rotation of the ball screw 14 connected to the motor 16; It is provided spaced apart on the front side in the moving direction of the window frame 2, and rubs against the outer 4 surfaces of the window frame 2 on the upper, lower, left, and right sides of the passage space of the window frame 2, respectively. A rear guide support portion 20 provided with guide support rollers 21, 22, 23, and 24; It is provided spaced apart on the front side in the moving direction of the window frame 2 of the rear guide support part 20, and the outer side of the window frame 2 on the upper, lower, left, and right sides of the passage space of the window frame 2 A front guide support part 30 provided with guide support rollers 31, 32, 33 and 34 rubbing against each of the four surfaces; It is provided between the rear guide support portion 20 and the front guide support portion 30, the upper surface, the lower surface of the window frame 2 located between the rear guide support portion 20 and the front guide support portion 30, The rear upper fixing part 50, the rear lower fixing part 60, and the rear left height each provided with a pair of pressing pads 51, 61, 41, 141, each provided with a pair of pressing pads (51, 61, 41, 141), which are frictionally moved back and forth toward the left and right sides, respectively. The government 40 and the rear right fixing part 140; A window frame frame (2) provided between the pair of pressing pads (51, 61, 41, 141) provided respectively and moved back and forth while being pressurized and fixed by a pair of pressing pads (51, 61, 41, 141) A cutting blade 95 for cutting perpendicular to the longitudinal direction of the; A detection sensor 98 provided spaced apart from the front side of the front guide support part 30 in the moving direction of the window frame 2 and detects the approach of the window frame 2 passing through the front guide support part 30; It is provided spaced apart from the front side in the moving direction of the window frame 2 of the detection sensor 98, and the stopper 91 is vertically lowered according to the detection signal of the detection sensor 98, and rubbing against the front surface of the window frame 2 It characterized in that it comprises a; front stop portion 90 for stopping the movement of the front side of the frame (2).