Difference between gate type plate shears pendulum plate shears

1、 They have different uses:

1. Application of brake type plate shears: used in automobile, tractor, locomotive  vehicle, ship, motor, instrument  other industries. It is also suitable for stretching of various high strength alloy plates.

2. Application of tilting plate shears: used for drawing, bending, extrusion, forming  other processes of sheet metal in power industry  aviation industry.

2、 Compared with the pendulum shear, the gate shear has higher shearing accuracy

1. 12 * 3200 For example, the minimum clearance between the edge of swing shear  brake shear is less than 0.06. The clearance of bearing connection between swing arm of swing shear  swing frame body cannot be eliminated. The accumulated shearing accuracy error of clearance  edge clearance is generally more than 0.1 mm. There are two needle roller bearing supports on both sides of the guide rail of the brake scissor frame,  one bearing with disc spring behind the front guide rail to form three-point support The accuracy error of the clearance between the rear guide rails  the edge clearance is less than 0.04mm, so the shearing material is smoother  has no burr.

2. The knife rest body of swing shear is arc-shaped, which ensures the straightness of shearing material by the point contact of arc line, while the scissors holder of brake moves vertically  linearly relative to the lower blade to ensure small distortion  more accurate straightness of shearing plate.

3. Because the force bearing point  blade of swing shear are  in the same straight line  the distance between them is relatively long, the tool rest is easy to produce fatigue  deformation after long-term work, resulting in the cutting edge of some cutting materials with rough edges, while the brake shear is  easy to deform because the oil cylinder, knife rest  blade are in the same straight line  move perpendicular to the lower blade

3、 The two structures are different

1. The structure of the gate type plate shear: the gate type plate shear adopts the frame structure  adopts all steel welding; the four corners  eight sides right angle guide rail has high precision  good rigidity,  adopts hydraulic preloading. The hydraulic system adopts two-way plug-in integrated valve; the whole system adopts;  can be configured with stroke digital display, photoelectric protection device  mobile working table (convenient for mold replacement). The brake type plate shear has the double action function of upper slider  lower hydraulic pad. The working pressure stroke can be adjusted within the specified range according to the process requirements,  the operation is simple  centralized controlled by buttons.

2. Structure of tilting plate shears: the straightness  parallelism of the shearing surface of the plate to be cut shall be ensured after shearing,  the distortion of the plate shall be reduced as far as possible, so as to obtain high-quality workpieces. The upper blade of the shearing machine is fixed on the knife rest,  the lower blade is fixed on the workbench. The worktable is equipped with a holding ball to prevent the sheet metal  being scratched when sliding on it. The back stop is used for plate positioning,  the position is adjusted by the motor. The pressing cylinder is used to compress the sheet metal to prevent the plate  moving during shearing. Guardrails are safety devices to prevent industrial accidents. Generally, the return journey depends on nitrogen, which has high speed  small impact.