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CNC PressbrakeBending Machine

WF67K series electro-hydraulic synchronous CNC Pressbrake (hydraulic compensation). The introduction of European design concept, simple appearance, practical and efficient, stable and reliable, cost-effective, with high process accuracy and strict safety standards, low failure rate of the new generation of CNC bending machine.

(1) The main mechanical structure of the machine tool is composed of the frame, the column, the slide block, the workbench, the main cylinder and the rear material. The main components are analyzed and optimized by three-dimensional software to ensure the structural strength and rigidity of each component.

(2) Welding parts using tempering, vibration aging and other methods to eliminate the internal stress of components;

(3) The guide rail of the machine tool adopts advanced self-lubricating materials, without frequent lubrication maintenance;

(4) The transmission structure of the machine tool adopts the up-moving bending design to ensure low noise and smooth working state; The bottom dead center has the function of suspending the pressure to ensure the accuracy of the workpiece;

(5) The movement and positioning of the left and right cylinders are controlled by the Y1 and Y2 axes, and the full closed-loop control system is composed of the electro-hydraulic servo valve grating numerical control system. Each axis can work in the programming state to make the slider of the machine tool have a higher motion positioning accuracy when pressing the workpiece. The linear scale is connected with the table to eliminate the influence of the column deformation on the position of the slider.

(6) The deflection compensation of the workbench is controlled by the V-axis of the CNC system. The automatic hydraulic deflection compensation mechanism consists of a set of deflection compensation cylinders, which are set below the workbench. When working, the CNC system controls the relative displacement of the compensation cylinder according to the size of the load to form a cluster of ideal compensation curves. The sliding block is provided with a diagonal wedge compensation mechanism to compensate the wear caused by excessive working time of the upper and lower die;

(7) Backgauge is controlled by the X-axis servo motor of the CNC system to drive the ball screw and the linear guide;

(8) The numerical control system is placed on the hanging operation station, and the operation can be freely swung in the operation area, single operation, etc. It is equipped with movable foot switch to move freely in the work area.

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Product Introduction Product parameters

Machine tool structure

1. 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 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 5-axis boring and milling machine in one time to ensure the parallelism, perpendicularity and parallelism of each mounting surface.

Hydraulic Compensation Table

When bending sheet material, the block and the table support plate will inevitably produce flexural deformation, so that the bending angle of the workpiece is small at both ends and large in the middle. The machine is equipped with compensation cylinder and controlled by CNC system, which makes the lower table produce pre-convex compensation for the deflection of the upper slider, and controls the angle change of the workpiece within the tolerance range to ensure high quality bending accuracy. Hydraulic compensation has less maintenance and no wear problems than mechanical compensation. Before hydraulic compensation, the lower table is the overall plane state and the surface of the bent plate contact state, and it is very stable when the upper die and the plate contact "clamping point", that is, the plate can not be displaced.

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 positioning, the scope of 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 5-axis 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.