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Electro-Hydraulic CNC PressbrakeBending Machine

WF67K series hybrid CNC pressbrake (mechanical compensation) is a multi-purpose energy-saving and high-precision pressbrake tailored for customers' specific applications. Numerous machine options and automation options make every press a complete custom solution. The WF67K models are available in single unit configurations ranging from 30 tons to 3,000 tons meters.
1. Using high-performance servo motor, saving more than 30% of energy. Supply oil on demand, reduce overflow, effectively reduce oil temperature, and extend the service life of hydraulic system and components.
2. High-performance electro-hydraulic servo system, full closed-loop control slider synchronization, repeatability 0.01mm.
3. Standard DELEM numerical control system, ESA, CYBELEC and other series numerical control system can be selected.
4. The table adopts CNC system to control the mechanical deflection compensation device.
5. Backgauge is equipped with high-performance servo motor and ball screw.
6. Standard fast tool change and clamping device, quick clamp with wedge type. Angle compensation function, safety hook to prevent top tool falling off.
7. Single V, double V or multi-V die can be selected.
8. Optional linear guide front supporting rack.
9. Optional installation of safety grating to prevent machine pressure safety accidents.

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Product Introduction Product parameters

Machine tool structure
1. The CNC machine tool adopts the latest technology design, the whole steel plate welding structure, high strength, high stiffness;
2. The frame adopts German technology and uses annealing furnace as a whole to eliminate internal stress, with good precision;
3. The main component structure is analyzed and optimized by using American ANSYS/UGS/CAD/CAM/IMAN 3D software. The structural parts are cleaned by sand blasting and sprayed with anti-rust paint.
4. The column, upper working slider and lower table of the machine tool are processed by the Czech Skoda or Qiqihar II-Machine f5-axis boring and milling machine in one time to ensure the parallelism, perpendicularity and parallelism of each mounting surface.

Y1 ~ Y2 axis

Y1 ~ Y2 axes are two independent moving axes of cylinders controlled by CNC system. Two linear scales Y1 ~ Y2 are installed at both ends of the machine, which are used to determine the exact distance between the slider and the table. The linear scale is connected with the table to eliminate the influence of the column deformation on the position of the slider. When the slider is running, the position data is immediately fed back to the numerical control system, which can calculate and output the servo valve control signal S1 ~ S2, control the output flow of the two electro-hydraulic servo valves, and synchronize the two cylinders.

Anti-Deflection Table
The V-axis is a CNC axis that controls the amount of convexity added to the table, allowing accurate deflection compensation over the full length of the table. The crowning table is composed of a number of integral convex wedge iron with beveled surface, which can move relative to each other to form a group of positions. The deflection compensation of the table is automatically carried out by the computer, and the accuracy of the machine is retained after several years of use. The deflection curve fits the deformation curve in the full length range so that the full length Angle is consistent. The automatic correction and compensation capability provided by the system is convenient and reliable.

Backgauge
Controlled by servo motor, the use of large lead high-precision ball screw, with fast speed, high positioning accuracy, multi-stage gear design, increase the positioning range, so that the workpiece bending dimensional accuracy to achieve the ideal state. The beam is made of aviation cast aluminum, strong plasticity, impact resistance than iron and steel beams have more advantages. The accuracy of use is not affected by the age (the frequent use of iron and steel beams will be affected by their own weight, resulting in sinking bending deformation, so that the straightness error of the beam will grow into a geometric shape)

Hydraulic system

1. The whole system is equipped with main servo motor, saving energy and reducing noise
2. The use of German BOSCH company or Germany HAWE imported electro-hydraulic servo valve group, modular design, compact structure, strong sealing performance, long life.
3. External large diameter filling valve, high speed, low loss.
4. The use of German VOITH or HAWE company internal mesh gear high pressure pump can withstand high pressure, low noise.
5. The cylinder and piston rod are made of 45 steel hot forging.
6. The cylinder and piston rod are formed by Japan Toshiba five-axis joint floor boring and milling machine and Japan Daiichi M132/300 CNC lathe. Cylinder grinding, hard chrome plated piston rod.
7. The hydraulic system has overload overflow safety protection, and the oil level height is clearly and intuitively displayed.
9. The machine can work continuously under the rated load, and the hydraulic system is stable and stable without leakage, with high precision.