Working principle and structure of plate shears
Shears are often used to cut blank sheets with straight edges. The shearing process shall ensure the straightness and parallelism of the shearing surface of the sheared sheet material and minimize the distortion of the sheet material so as to obtain high quality workpieces.
The upper blade 1 is fixed on the tool holder 2, the lower blade 3 is fixed on the lower bed 4, and the bed surface is installed with ball 5, so as to facilitate the feeding and movement of the plate 6. The rear baffle plate 7 is used for the plate positioning, and the position is adjusted by the position adjusting pin 8. Hydraulic pressure drum 9 is used to press sheet to prevent sheet from turning over during shearing. Shed plate 10 is a safety device to prevent work-related accidents.
1) Adjust the front damper
Hold the tailgate close to the lower knife edge, then hold the template close to the tailgate, and hold the front baffle close to the template. Loosen the tailgate, remove the template, install the sheet, and shear.
(2) Adjust the tailgate
Align the plate with the lower cutting edge, then tighten the tailgate against the plate and fix it, remove the plate, and then install the plate for shearing.
(3) Adjust the Angle baffle. First, align the lower knife edge with the template on the table, adjust and fix the Angle baffle, and then adjust the tailgate according to the template. In the shearing process, use both Angle baffle and tailgate to locate.
2. Trigger clipping structure
Gantry plate shears
The gantry plate shears are used more than the plate shears, because there is no throat U in the frame of the plate shears, so the length (or width) can only be shorter than the length of the blade plate. The gantry plate shears have small inclination Angle, large rigidity, large pressure plate force, and more strokes per minute, which can carry out precise shearing. The beam is connected by two lower wall panels through a beam connecting rod and a fixed shaft. There are 7 roller shafts mounted on the wallboard, and each shaft has a gear meshing with the gear on the upper beam roller shaft. The reduction gear and shaft are mounted on the lower part of the lower beam and engage with the 7 gears on the lower roller shaft through 6 transmission gears. The lower beam is bolted to the middle of the frame. The upper and lower cross beam is located by the locating pin, so that the upper beam can be adjusted along the relative displacement of the locating pin and the lower beam, the gap between the upper and lower roller wheels is adjusted, and the rolling pressure is adjusted by adjusting the screw.
Single flat bite mechanism
Yzd3-16 single flat bite machine is mainly composed of frame 1, movement part 3, motor 2, working table 7, guide ruler 6 and cover 9, etc.
The frame part is a welded steel structure, the motor, the movement part, the guide ruler, the worktable and the cover are all installed on the frame.
The movement part is mainly composed of upper beam and lower beam, and the working mechanism is connected by locating pin and adjusting screw.
The upper beam is connected by two wallboards through a beam connecting rod. There are 7 roller shafts on the wallboard. Each roller shaft is equipped with a middle roller wheel, an outer roller wheel and a gear. Sheet metal air duct bite connection, for the bite processing widely used bite machinery. The air duct produced by the mechanical processing of the biting door is not only of high strength, small deformation, flat surface, smooth, consistent size and beautiful appearance, but also of reducing the labor intensity of the traditional manual operation and improving the productivity.
The bite molding of thin steel sheet wind pipe is based on the principle of rolling and bending (pressing). Rolling and bending (pressing) is carried out on the bite machine, and the cross section shape of the edge of the plate can be obtained as the folding curve hook shape required for the bite connection.
There are many types of bite machines. This chapter mainly introduces the structure, working principle and using technology of single flat bite machine, push-button bite machine, combined Angle bite machine, elbow bite machine and strip forming machine. Shearing machine products are: bending machine CNC bending machine four column hydraulic press shearing machine blade tool die hydraulic plate shearing machine cold bending machine frame cold bending machine brake type plate shearing machine.
