Milling saw is a new line cutting technology in pipe welding industry. The most important feature is the cold milling principle. After cutting off, the pipe end is flat without burr, and there is no need for secondary cutting in applications with high processing requirements. In addition, the precision of cutting length is higher than that of ordinary computer flying saw because of the servo tracking technology. Significantly reduce dust and noise pollution in the production process.
Milling saw is a double saw blade cutting saw, used for large pipe diameter and large wall thickness of straight seam welded pipe in line cutting. Two saw blades are located on the same rotating disc, and the steel pipe is cut in R-θ control mode. During cutting, two symmetrical saw blades move in a relative straight line toward the center of the pipe along the radius direction (R). After the saw blade cuts the steel pipe, the rotating disc drives the saw blade to rotate (θ) around the center of the steel pipe while the blade cuts the pipe wall. During rotation, the movement trajectory of the saw blade is similar to the pipe type. Double saw blade copying cutting, can minimize the diameter of the saw blade, to save cutting costs.
The whole system adopts Siemens full digital motion control system Simotion and Profinet network combination, servo motor all through the network control, through 10 “touch screen input system parameters, system operating parameters are clear and accurate, and real-time record system alarm information.The steel plate of the flying saw base is welded and processed after tempering. The moving parts are all driven by linear linear guide rail and ball screw. It has its own lubrication system.The whole flying saw machine is stable and reliable, and the electric control system is advanced.
Equipment Specification
2.1.1 Scope of application: Low carbon steel(Max.Q235);
2.1.2 Pipe specification:
Round Pipe diameter : Φ150–Φ323mm
Pipe Thickness: 4.0 – 12.0mm
Square pipe：150×150-220x220mm
Rectangle pipe：100×200-200x300mm
Pipe Thickness: 4.0 – 12.0mm
Cutting accuracy (range length): +/ – 1.5 mm;
Inside bead NOT removing.
2.1.3 Mill line: Direction from left or right ; Max. line speed: 40 m/min.
21.4 Cutting length: 1.0-32.0mm（can adjust）
2.1.5 Length precision: ±1.5mm (line speed fluctuating less than 2%)
2.1.6 Cutting speed: Max. 40m/min
Electric Description
2.2.1 Driving motor: servo motor 55kw/1500rpm(SIEMENS S120 Drover+ Fez motor).
2.2.2 Feeding motor: servo motor 2*11kw/3000rpm(SIEMENS S120 Drover+ Fez motor).
2.2.3 Blade motor: AC motor 2*18.5kw/2000rpm, (SIEMENS S120 Drover+ Fez motor).
2.2.4 Rotation motor: AC motor 2*7.5kw/1500rpm(SIEMENS S120 Drover+ Fez motor)
2.2.4 Length measurement: 2500 pulse encoder. IP65 waterproof and dustproof from Koyo;
2.2.5 Control cabinet: 2200*800*600mm*2sets, Operating desk: 1100*900*700mm.
