Guillotine Blades Gap For Cutting Metal Sheet
The plate shearing machine uses the moving upper blade and fixed lower blade to apply shear force to cutting or blanking metal plates of various thicknesses with reasonable blade gap.
Working principle and structure of plate shears. Plate shears are often used to cut blank plates with straight edges. The shearing process shall be able to ensure the straightness and parallelism of the shearing surface of the sheared sheet, and minimize the distortion of the sheet to obtain high-quality workpieces.
Plate shears are a kind of forging machinery.The cutter of the plate shearing machine is an important working part of the plate shearing machine. In the cross cutting system, the cutting action takes two direct cutting edges. The movable upper cutter cuts obliquely, with a front angle of a > 0, relative to the fixed lower cutter. The plate is clamped by a lower support on the lower knife. When the upper knife is inclined downward, with a small gap between the upper knife and the knife (1% - 25% of the plate thickness), the plate is cut gradually from one end to the other. Ignore the beginning and end of cutting, which can be regarded as a static process. The transverse shear deformation is accompanied by bending deformation, because the plate must conform to the inclination of the blade. The two deformations interact with each other, resulting in shape defects, which is related to the inclination and reducing the width of the shear strip. The purpose of a cross cutting process is to reduce the edge quality (Burr) and flatness with a certain force. Therefore, in practice, the change of inclination angle between 0.5 ° and 3 ° is used as the adjustment between the quality of the plate and the required force.
Guillotine Blades Cutting Gap setting has strict relation with metal sheet cutting thickness.
The bigger cutting blades clearance between the cutting edges of the plate shears will cause obvious burrs in the cutting of the steel plate, and the edge collapse of the sheared steel plate is serious. At the same time, the expansion cracks generated by the upper and lower cutting edges do not coincide, and the bending and crimping of the steel plate will occur seriously.
If the cutting gap is too small, the edge will crack when cutting the steel plate, and the shear steel plate will crack, affecting the secondary use of the product. Adjust the thickness of the steel plate according to the thickness of the blade on the machine, so as to avoid the phenomenon of cutting off the steel plate in time.
Adjustment method of blade clearance of sheet cutting shears
1. Adjustment of cutting edge gap of CNC VR Guillotine Shears
CNC VR Guillotine Shears refers to the cutting machine equipment that control all cutting factors in actual cutting action, included cutting angle, cutting gap, cutting stroke, cutting edges in X axis back gauge, cutting machine operator only need to input some basic cutting parameters to the CNC Guillotine controller, all axis will be running and positioning automatically in controller, with reasonable cutting gap, reasonable cutting angle and cutting stroke, which can save a lot of cutting time and ensure higher cutting precision and productivity, DELEM DAC360T&DAC362T special designed for 3 axis&4 axis CNC sheet Variable angle cutting Guillotines.
2. Adjustment of blade clearance of NC Hydraulic metal shears
The clearance adjustment of the cutting edge of ordinary plate shears should be manually adjusted by the operator according to the thickness of the workpiece and the actual cutting quality. During adjustment, loosen the locking bolt, turn the handle to the specified scale, and then lock the bolt. Carry out cutting and fine tune according to the above steps according to the cutting quality of the workpiece. Production can be carried out.
