Working principle of shearing machine

The shearing machine should be able to ensure the straightness and smoothness of the shear surface of the sheared sheet, and minimize the distortion of the sheet to obtain high-quality workpieces. The upper blade of the shearing machine is fixed on the tool carrier, and the lower blade is fixed on the worktable. A supporting ball is installed on the worktable to avoid scratching when the sheet material is slipping on it. The rear stopper is used for the location of the plate, and the position is adjusted by the motor. The press cylinder is used to compress the sheet material to prevent the sheet from moving during shearing. Guardrail is a safety device to prevent accidents. The return generally depends on nitrogen, fast speed, and small impact.
Operating procedures
The first is to conscientiously implement the relevant provisions of the general rules for the operation of forging equipment.
Second: conscientiously implement the following supplementary provisions:
1, carefully before the work:
1) before starting the trial run by air, it is necessary to use the manual turning of a working stroke to confirm the normal operation before starting the equipment.
2) equipment with hydraulic equipment and adequate oil content should be checked. After starting the oil pump, check whether there is leakage in the valves and pipelines, and the pressure should meet the requirements. Open the vent valve to release the air in the system.
2, conscientiously in the work:
1), no shearing and laminates are allowed, trimming the edges of the edges of the rough edges, and cutting the narrow and short materials that are not tightly cut.
2) the gap between the knife plates should be adjusted according to the thickness of the sheet, but not more than the maximum 1/30 of the plate. The knife plate should be fastened and firmly, and the upper and lower cutter surfaces should be kept parallel. After adjusting, the manual barge should be used to avoid accidents.
3) knife edge should be kept sharp. If the edge is blunt or cracked, it should be replaced in time.
4) when shearing, the material pressing device should be firmly pressed against the sheet material, and it is not allowed to cut under the condition that the pressure is not tight.
5), with hydraulic equipment, except for throttling, other hydraulic valves are not allowed to be adjusted.
6) for the thickness of the shear plate of the hydraulic pendulum shear, it should be determined according to the diagram of the relationship between the ultimate strength of the sheet and the thickness of the plate.
3, after work, the upper knife plate should be placed in the lowest position.
Before operation should wear tight protective clothing, cuff fastened, the upper garment can not be open, must not be worn around the machine tool, change clothes, or peri cloth on the body, prevent the machine from wound. Safety helmet must be worn, and plait should be put in the hat, and no skirt or slippers should be worn.
The operator of the shearing machine must be familiar with the main structure, performance and usage of the shearing machine.
The shearing machine is suitable for all kinds of steel plate, copper plate, aluminum plate and nonmetallic material sheet with the thickness of the shear material, and it must be material without hard mark, slag, slag and weld, and it is not allowed to be super thickness.
The using method of the shearing machine: adjust the clearance of the blade according to the thickness of the cut material; adjust the die or fixture according to the width of the cut material; before the operation of the shearing machine, the 1 to 3 air travel is first made, and the shearing work can be carried out before it is normal.
If the operation of the machine is abnormal, the power supply should be cut off immediately.
When the machine is adjusted, the power must be cut off, and the safety of the hand should be paid attention when moving the workpiece.
Every part of the shearing machine should be kept lubricated. The lubricant should be added to the operator every shift. The lubricating oil must be added to the rolling bearing part every half a year by the mechanic.