Classification of shearing machines: General shearing machines can be divided into: pedal type (manual), mechanical shearing machine type, hydraulic pendulum shearing machine, and hydraulic gate shearing machine.
The shearing machine uses the moving upper blade and the fixed lower blade to apply shearing force to the metal plates of various thicknesses with a reasonable blade gap, so that the plates can be broken and separated according to the required size.
The working principle and structure of the shearing machine The shearing machine is often used to cut sheet blanks with straight edges. The shearing process should 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.
The shearing machine is widely used in: aviation, light industry, metallurgy, chemical industry, construction, shipbuilding, automobile, electric power, electrical appliances, decoration and other industries to provide the required special machinery and complete sets of equipment.
Shearing machine operating procedures:
1. Before operation, wear tight protective clothing, fasten the cuffs, and do not open the hem of the top. Do not wear, take off or change clothes next to the running machine tool, or wrap it around the body to prevent the machine from being strangled. Wear a hat, the braids should be placed in the hat, and skirts and slippers are not allowed.
2. The shearing machine operator is familiar with the main structure, performance and usage of the shearing machine.
3. The shearing machine is suitable for shearing various steel plates, copper plates, aluminum plates and non-metallic material plates whose material thickness is the rated value of the machine tool, and it is a material without hard marks, welding slag, slag inclusion, and welding seam, and excessive thickness is not allowed. .
air buffer seal
The air buffer plays an air balancing role for the scissors cutting seat. Due to serious air leakage, the balancing effect is greatly reduced, which affects the working condition of the shearing machine. Due to serious leakage, the compressed air pressure of the whole machine cannot reach the working pressure, so the clutch cannot be opened and cannot work.
The leakage part of the system of the shearing machine is mainly the lower cover of the cylinder, the seal between the shaft and the hole. The original sealing ring is the shaft sealing ring 35, that is, 50 × 35 × 10, which is installed in the hole of the lower cover of the cylinder, and the hole is used as a stopper. The ring is pressed tightly, and the existing national standard product 35 is: 43 × 35 × 10, and the outer diameter differs by 7mm. We use the method of machining a steel sleeve with an outer diameter of 50mm, an inner diameter of 43mm and a thickness of 10mm to install the sealing ring, and then insert the steel sleeve into the hole of the lower cover.
Install an O-ring 42.5×3.55 on the gasket. In this way, the lower end face of the steel sleeve can compress the O-ring and increase the inner diameter of the gasket 2 to compress the gasket, thereby effectively preventing In the process of implementation, the thickness of the steel sleeve must be appropriate, so that the retaining ring can not only be installed, but also the steel sleeve can be pressed against the O-ring without leakage. After careful measurement, carefully The calculation finally solved this problem. After installation and debugging, there is no leakage and good operation. Through the above replacement of the seals of the shearing machine, a major hidden danger in production has been solved. In just 3 days The completion of the above tasks not only ensures the timely repair and operation of the equipment, so that the workshop production can be carried out smoothly, but also saves our factory the funds required for customizing or ordering seals, and also trains the workshop technicians to analyze problems and The ability to solve problems has laid a good foundation for solving some problems in equipment maintenance in the future.