Working Principle:
It is mainly based on components such as motors, gearboxes, sensors, etc., which are adjusted by the control system to realise the bending operation of metal sheets. The pure electric servo bending machine adopts the servo motor control system, which controls the servo motor through an electronic controller to achieve precise control of the bending angle and bending position.The servo motor has the characteristics of high precision, high speed and high torque, which can meet the requirements of high-precision bending.In the bending process, the torque and speed output from the servo motor are transmitted through the reducer to push the upper and lower moulds to bend the metal plate. At the same time, the sensor monitors the bending angle and position of the plate in real time, and feeds the data back to the controller, which adjusts the speed and torque of the servo motor according to the feedback data, thus controlling the bending process and achieving precise control.In addition, the electronic control system of the pure electric servo bending machine is the core part of the whole equipment, which realises high-precision bending of workpieces through the control of servo motors, systems and machine tools. The electronic control system adopts touch screen operation interface, which is easy and convenient to operate and can meet the needs of different users.The advantages of pure electric servo bending machines lie in their high precision, high efficiency and low maintenance costs. Pure electric servo drive technology of the motor input power and load power is proportional to the power, bending power consumption, the slider no-load rising power consumption is small, the slider stops basically no power consumption.In addition, the main transmission efficiency of the pure electric servo bending machine is above 95%, while the hydraulic transmission efficiency of the hydraulic servo bending machine is below 80%. Pure electric servo bending machine does not use hydraulic oil, avoiding the problem of hydraulic oil leakage and pollution, low maintenance costs, fast sliding speed and high productivity.
Work Process:
- Loading the workpiece: first of all, the workpiece to be processed should be placed on the bending machine table and positioned according to the technical requirements. This step needs to be carried out in strict accordance with the requirements in order to avoid errors in the processing of the workpiece.
- Programme setting: enter the parameters of the required workpiece on the controller, including the size of the workpiece, bending angle, bending times, bending radius, etc.. After the input is completed, the program is verified and optimised by the supporting software.
- Start processing: When the programme is set, you can start processing. Start the pure electric servo bending machine, the control system will bend the workpiece according to the set parameters. In this process, the controller not only monitors the speed, steering and torque of the servo motor in real time, but also controls the position and speed of the piston cylinder.
- Finish machining: When the workpiece is finished machining, it needs to be checked and measured to ensure that it meets the technical requirements. If further processing or correction is required, the parameters can be re-entered to re-process.
- The above is the working principle and working process of pure electric servo bending machine. It has higher precision and accuracy than the traditional bending machine, and has very obvious advantages in processing efficiency and finished product quality.
Preparation for work:
- Machining of the entire frame:
A large floor boring and milling machine is used to machine the whole frame of the bending machine.
- Fully electric, no hydraulic oil required:
The servo system uses 100 per cent electricity instead of hydraulic oil and hydraulic components to reduce pollution.
- Standard segmentation of upper and lower moulds:
Mould segments 10,15,20,30,50,100,300(cm), custom length is available.
- Professional CNC system：
Default is the new generation of SYNTEC CNC control system, user can customise.
- Electro-mechanical deflection compensation (optional)：
Input the parameters of plate thickness and length in the CNC system, the system will automatically carry out the deflection compensation.
- High precision backstop structure：
Adopting ball screw and linear guide, driven by servo motor, the backstop positioning is fast and accurate.
- Energy saving, environmental protection, high precision：
It can save 50% energy, environmental protection, fast bending speed, short response time, energy saving and low cost. One of the advantages of all-electric servo drive technology is that the input power of the motor is directly proportional to the size of the load power, the motor does not rotate in standby, almost no consumption of electrical energy, and the noise during operation is much lower than the hydraulic servo bending machine.100 tonnes of 3.1 m servo bending machine, for example, tested, all-electric servo bending machine power consumption of 1.5kW-h, while the hydraulic servo bending machine power consumption of 7kW-h. All-electric servo bending machine mechanical main drive efficiency of more than 95%, while the hydraulic drive efficiency of hydraulic servo bending machine in the 80% of the following efficiency of the hydraulic system components aging and wear and tear of the efficiency of the even lower.Take 100 tonnes of 3.1 m bending machine as an example, according to the daily work of 8h calculation, all-electric servo bending machine host power consumption of about 12kW-h / d, while the hydraulic servo bending machine hydraulic system power consumption of about 56kW-h / d, all-electric servo bending machine energy saving of about 80%.All-electric servo bending machine does not use hydraulic oil, there is no replacement of hydraulic oil, disassembly and replacement of hydraulic components, there is no replacement, disassembly and replacement of the process of hydraulic oil leakage, not to mention the waste oil disposal and pollution.
- High bending precision：
The all-electric servo bending machine adopts the transmission structure of servo motor directly driving the screw, increases the magnetic scale, and forms a full closed-loop control with the system to improve the transmission accuracy, and the positioning accuracy is ±0.01mm.The hydraulic servo bending machine is driven by the motor oil pump, through the oil circuit input to the proportional valve, the proportional valve to control the amount of oil to work, so the accuracy will be a little lower, positioning accuracy is generally ± 0.03mm.
- Angle programming and graphic programming：
Users can directly angle programming, each step of the process can be done accurately bending machine, fast running speed. All-electric servo bending machine servo motor response speed than the hydraulic servo to 100 tonnes of 3.1 m all-electric servo bending machine, for example, the slider return and fast down the speed of up to 140mm / s, the working speed of 0 ～ 50mm / s; and the vast majority of the same tonnage of hydraulic servo bending machine slider return and fast down the speed of 120mm / s or less, the working speed of 10mm / s only.Hydraulic servo bending machine by the environment and the hydraulic system heat is prone to failure, the need to start warming up or shutdown cooling, while the all-electric servo bending machine components, low failure rate, fundamentally does not exist these problems. The same tonnage of all-electric servo bending machine than the hydraulic servo bending machine processing efficiency is nearly 1 times higher. 100 tonnes of 3.1 m bending machine, for example, the test, all-electric servo bending machine bending speed can be the fastest folding 34 times / minute (opening height of 10mm), the slowest can be folded 29 times / minute (opening height of 140mm), greatly improving production efficiency. Fast down 140mm stroke, for example, all-electric servo bending speed of 29 times / minute, while the hydraulic servo bending speed is only 12 times / minute; and then fast down 10mm stroke, for example, all-electric servo bending speed of 34 times / minute, while the hydraulic servo bending speed of 21 times / minute.
