Introduction to the working principle of the brake type laser cutting machine

Cutting tool is not in accordance with the installation of screw surface, but installed with rotary cylinder busbar tangent plane, namely when the blade according to certain shear Angle to the tool post after installation, the blade under the action of a screw press and its tangent. Under normal circumstances, the shear front foot will accompany the shear Angle change and change, after the large shear early damage on the anterior horn can make tools.
。 Pendulum cutter force is generally calculate the tool post for linear motion of the helical blade cutter shearing force calculation formula to calculate. Reality, for the pendulum cutting machine, to ensure that in the process of the shear and shear shearing clearance Angle for constant, you should install the rest on the blade surface machining screw surface into space. And in the design process swing cutting machine is mostly used for calculating shear force calculation formula of the shear force of cutting machine tool slide a straight line, this will surely cause calculation is not correct, make a design size deviation, on the and, in turn, affects its use function. Compare with ordinary cutting machine, swing cutting machine used more oblique shear blade, because of simple structure, low failure rate, high efficiency of shear and shear deformation of sheet metal is not easy to bow, warping, distortion after and widely used. The shear gap, the greater the proportion of their general use snap, accordingly for the shear quality. In the process of shearing, followed the rest do turn movement, oscillating cutter after shear Angle and shear clearance changes. Plate shear process, the quality of shear and the shear force is very sensitive to shearing clearance. Shearing clearance changes will make the changes occurred in the shear force in the process of shearing shearing quality to drop, and after the shear Angle change can aggravate the blade wear, even with the plate extrusion, in turn, increases the shear stress. For medium thickness plate clipping, experience shows that shear process smaller shear gap also will make the shear stress increases, and the method of drum blade installation surface process of pendulum cutting machine cutting clearance is cyclical change. Do treat is feasible in theory, but because in the actual manufacturing to simplify the process, install the blade surface by spatial helicoid simplified into plane, resulting in after shearing clearance in the process of shear and shear Angle of cyclical changes. Because the pendulum cutting machine tool slide the blade mounting surface manufacturing process for the mostly adopt cylinder, it is necessary to consider the shearing clearance when calculating the shear force and shear before and after the influence of Angle change.
in our cutting machine design, if you want to design to perfect, it must consider factors should be comprehensive, the strengths of the pendulum cutting machine and its features into consideration. In the process of shear shear and tensile action is coexist. But in fact, to simplify the process and considering the shape of the blade, for rectangle commonly, followed by knife surface as plane, the screw surface can be directly processed into the tool post rotation axis parallel to the plane.








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