summary
According to the structure and application characteristics of the bending machine, the composition and working principle of the system are introduced, which does not need to use hydraulic oil, saves the link of regular replacement of hydraulic oil, is green and environmentally friendly, does not affect the accuracy due to oil temperature changes, and reduces maintenance costs. The Safu ASD600A servo has the characteristics of fast response speed and strong overload capacity, so as to improve the bending rate, high efficiency and stability, and the high efficiency and stability of the ASD600A series servo applied to the all-electric servo press brake have been verified through experiments and applications.
Keywords: press brake; hydraulic fluids; responsiveness; Green and environmentally friendly
Abstract: According to the structure and application characteristics of bending machine, composition and working principle of the system, which does not require the use of hydraulic oil, hydraulic oil saving replacement links, regular green environmental protection, no temperature changes affect the accuracy, reduce maintenance costs. Serfode ASD600A servo has fast response speed, strong overload capacity and other characteristics so as to enhance the bending speed, high efficiency and stability, and through the experiment and application show ASD600A series servo used in all electric servo bending machine.
Keywords: bending machine; hydraulic oil; response speed; green environmental protection
introduction
Sheet metal bending machine is one of the commonly used machinery in the sheet metal processing industry, it uses bending die to press metal sheet metal into a certain geometric shape, widely used in machinery, electronics, electrical appliances, daily hardware, ships and aviation and other industries, in recent years, with the development of society, the demand for bending machine in various industries is rising, and the precision and function requirements of the bending machine are getting higher and higher, not only to have high productivity, but also to have high-quality precision, which requires the structure of the machine tool to be simple, and to have a strong automatic processing function, In order to reduce the labor intensity of workers.
Introduction to processing technology
The hydraulic press brake includes a bracket, a workbench and a clamping plate, and when used, the coil is energized by the wire, and the gravitational force is generated on the pressing plate after the power is applied, so as to realize the clamping of the thin plate between the pressing plate and the base. Due to the use of electromagnetic force clamping, the pressure plate can be made into a variety of workpiece requirements, and workpieces with side walls can be processed. The press brake can meet the needs of various workpieces by replacing the press brake mold.
Status quo of CNC bending machines
The hydraulic system of the traditional press brake regulates the flow of the system through the quantitative pump and the proportional reversing valve, because the actual flow required by the system is varied, and the output flow of the oil pump is constant, so there must be a part of the flow that needs to overflow, resulting in energy loss; On the other hand, the set pressure of the VRLA system is always higher than the actual required pressure, which also results in a loss of energy. At the same time, there is the overflow of the main pressure valve in the throttling speed regulation mode, which causes the noise and the calorific value of the hydraulic oil to be large, and the temperature rise is high, which reduces the service life of the hydraulic oil and increases the maintenance cost. With the increasing attention to energy saving and emission reduction, in view of the shortcomings of the hydraulic system of the traditional press brake, as well as the forming process and process characteristics of the equipment, the CNC bending machine with servo drive and the use of electro-hydraulic servo system to drive the oil pump came into being, and at present, the high-end CNC bending machine is mainly of this type, with high bending accuracy (±1 degree) and fast processing speed.
Advantages of Safude servo for all-electric servo press brakes
In recent years, with the reduction of the price of high-power AC servo motor and heavy-duty ball screw, the market of all-electric servo CNC bending machine has been gradually launched, in the field of small and medium-tonnage CNC bending machine market, Saifd has launched a series of ASD600A servo drives for all-electric servo bending machine to achieve high precision, strong deflection load resistance, environmental protection and energy saving, etc., after a large number of on-site practice and application, it has been unanimously affirmed and praised by customers.
Comparison of three types of CNC bending machines
Conclusion
The main advantage of the all-electric servo CNC bending machine using the Safud ASD600A servo compared with the other two is that the bending speed is fast, even if the Y-axis rapid traverse speed is the same, due to its large acceleration, the overall processing time is also more time-saving than the electro-hydraulic servo press brake.
The full servo press brake adopts a servo motor, which is more energy-saving than the electro-hydraulic servo press brake, and the all-electric servo press brake does not use hydraulic oil to save the regular replacement of hydraulic oil, which is green and environmentally friendly.
The all-electric servo press brake adopts a servo motor, which has stable control and will not affect the bending accuracy due to oil temperature changes.
References:
[1] Cao Xipei. Discussion on improving the processing efficiency of CNC machine tools[J].Equipment Manufacturing Technology,2011
[2] Wang Guoqiang, Zhang Genbao, Hong Tao, et al. Research on task-based modeling technology of CNC machine tool machining process reliability[J].China Mechanical Engineering,2013
