This article will delve into the various components that constitute the structure of a sheet metal shearing machine. These components include the transmission system, body, slider (tool holder), pressing mechanism, material blocking mechanism, balancer, electrical control system, lubrication system, and other auxiliary devices such as sealing rings, valves, N2 nitrogen gas return trip, among others. Understanding the role and function of each of these components is crucial for comprehending the operation and capabilities of a sheet metal shearing machine.
Sheet Metal Shearing Machine Compositions
Transmission System
The transmission form of the sheet metal shearing machine has three forms: mechanical transmission, hydraulic transmission and hydraulic-mechanical combined transmission. Generally speaking, the old-style small shears were mainly driven by mechanical transmission, but with the development of technology and production, the proportion of hydraulic transmission shears is increasing.
The transmission system of the mechanical transmission shearing machine is similar to the transmission system of the punching machine, and it is also composed of a motor, a flywheel, a clutch, a crank connecting rod mechanism, a brake, a shearing slider – a pressing slider, etc. The clutch is also divided into a rigid clutch and a friction clutch, and the operating performance and danger are also similar to those of a punch.
The transmission mechanism of the hydraulic plate shearing machine is relatively simple, and the pressing block and the shearing block are directly driven by the oil cylinders. Easy to operate, can realize single stroke, continuous stroke, inching stroke and return stroke; safer work, can prevent equipment accidents caused by overload; stable work, low vibration, low noise, can prolong tool life. However, a complex and precise hydraulic control system is required, and the maintenance workload is large.
The appearance and structure of the shearing machine mainly depends on the transmission method used.
Sheet Metal Plate Shearing Machine Body
The body of the sheet metal shearing machine is usually composed of left and right columns, a workbench and a connecting frame. The left and right columns and the connecting frame are generally welded with steel plates. Front.
Working table and Handwheel:
Ball type within 16mm, front roulette
Over 16mm is roller type, side roulette
Slider (Tool Holder)
This is an important part of the hydraulic shearing machine, its upper part is connected with the connecting rod of the shearing machine transmission system, and the lower part is equipped with scissors. The size of the shear angle is also adjusted by the slider.
Pressing Mechanism
During the shearing process, the sheet material should always be pressed on the table, otherwise the spot material will be displaced or warped during the shearing process, resulting in an increase in the size deviation of the sheared material. Therefore, the shearing machine needs a pressing mechanism.
There are two common types of pressing mechanism: mechanical pressing mechanism and hydraulic pressing mechanism.
Back Gauge
The sheet metal shearing machine uses a back gauge to ensure the required cutting length. There are two types of back gauges, manual and motorized.
Balancer
(Basically, used for mechanical type) the function of the balancer is to reduce the impact of the moving parts on the eccentric shaft (in order to facilitate the adjustment of the center distance between the shaft and the shaft) and prevent premature wear of the shaft sleeve. There are two common types of balancers: spring type and cylinder type.
Scissors
There are three types of blade forms and sizes used by the shearing machine: Type I, which is a four-edged scissors blade, with a rectangular section; Type II, a two-edged scissors blade, with a parallelogram section; Type III, a single blade. The blade is inlaid with steel.
Conclusion
In conclusion, the intricate interplay of components within a sheet metal shearing machine forms the backbone of its functionality and efficiency. From the transmission system ensuring precise power delivery to the body providing stability, each element plays a vital role in achieving accurate and consistent cuts.
The pressing mechanism, material blocking mechanism, and slider work in harmony to facilitate smooth operations, while the balancer ensures optimal weight distribution for enhanced safety. The integration of advanced electrical control systems and lubrication mechanisms further elevates performance and longevity.
Altogether, a comprehensive understanding of these components is essential for maximizing the potential of sheet metal shearing machines, enabling industries to meet the demands of modern manufacturing with precision and reliability.
