Electro-hydraulic CNC Press Brake is in an overall welding and overall processing structure, and the main parts of machine are all analyzed by ANSYS finite element analysis software, which has ensured the reliability of machine and the precision of entire machine. The CNC control system adopts , ESA, or Swiss CYBELEC products, which can achieve the functions of graphic programming for bending angle, compensation for angle amendment, automatic calculation also adjustment of bending pressure, automatic calculation of compensation for workbench distortion, extending length of workpieces, bending pressure for bottom bending, open distance, and automatic withdrawal of rear stopper, etc. Standard configuration: 1. 4+1 axis (Y1, Y2, X, R +V axis) 2. CNC system: DELEM DA-53T 3. Hydraulic system: German Rexroth (Italy DUPLOMATIC) 4. Grating ruler: GIVI optical scale 5. Ball screw: 6. Linear guide rail: 7. Main electrical components: Schneider 8. Compensation method: mechanical compensation
1.Special numeric-control system fitted with mainframe of the bending machine 2.Mulch-work-step programming function is able to achieve an automatic operation and continuous positioning of mulch-step procedures, as well as an automatic precision adjustment for positions of rear stopper and gliding block. 3. The machine is provided with bend counting function, for a real-time display of processing quantity and power-failure memory of positions of stopper and gliding block, as well as procedures and parameters 4. Imported ball bearing lead screw and linear rail are used for rear stopper, to ensure the positioning precision of rear stopper, for processing precision of machine to be bigger.
The CNC hydraulic press brake is equipped with new-style man-machine CNC system, which is developed by ourselves. It is easy to master and it may greatly improve the users' productivity. Main feature: The press brake adopts whole steel welded structure. And it has enough intensity and rigidity. Ram synchronization during the stroke is controlled by a mechanical torque synchro system, which is steady and reliable. And the stroke of the ram is adjusted in the inter cylinders. The ram stroke and the back gauge can be adjusted by motor and manual adjustment. And it can be displayed by counters. A hydraulic system is used for the machine. A feeding valve is used to speed up the ram travel to save energy. The operations of the machine are realized by the hydraulic valves A gear pump is used to reduce the noise of the machine, which can achieve the environmental standard. The dies are made of carbon steel, which have good rigidity and durable. And they are equipped with adjusting wedges of high precision. Word-class elements are used for the electric system of the machine, which is safe and reliable. There are multi catenation and interlock in the electric system, which can avoid mistakes. The machine is equipped with fully safety guard and emergency stop which can ensure the safety of the operators. The position of the back gauge can be accurately adjusted by operating the touch screen. The stroke of the ram can be accurately adjusted by operating the touch screen. The CNC system can auto calculate the bending angle. Operators can edit machining programs in advance. And the system will process as the programs require.
Two wf67y series in same specification are chosen as main machine with double motor linkage synchronous-device, which may work together to process overlong workpiece or operate separately to increase production efficiency. Defection compensation device is also fitted, mechanic and fluid servos with mechanic slider are utilized in synchronous device. The stroke of upper slider and the position of rear apron are regulated quickly by mechanic and micro-regulated by hand with electronic nc display.
A press brake can be described by basic parameters, such as the press brake force or press brake tonnage and the press brake working length. Additional parameters include the press brake amplitude or press brake stroke, the distance between the press brake frame uprights or side housings, distance to the backgauge, and press brake work height. The press brake upper beam usually operates at a speed ranging from 1 to 15 mm/sec. There are several types of press brakes as described by the means of applying force: mechanical press brake, pneumatic press brake, hydraulic press brake, and servo-electric press brake. In a mechanical press brake, energy is added to a flywheel with an electric motor. A clutch engages the flywheel to power a crank mechanism that moves the ram vertically. Accuracy and speed are two advantages of the mechanical press brake. Hydraulic press brakes operate by means of two synchronized hydraulic cylinders on the C-frames moving the upper beam. Servo-electric press brakes use a servo-motor to drive a ballscrew or belt drive to exert tonnage on the ram. Pneumatic press brakes utilize air pressure to develop tonnage on the ram. Until the 1950s, mechanical press brakes dominated the world market. The advent of better hydraulic press brakes and computer control press brakes have led to hydraulic press brake machines being the most popular. Pneumatic and servo-electric press brake machines are typically used in lower tonnage applications. Hydraulic press brakes produce accurate high quality products are reliable, use little energy and are safer because, unlike flywheel-driven press brakes, the motion of the ram can be easily stopped at any time in response to a safety device i.e. a light curtain. Features of cnc press brake/hydraulic press brake/press brake : 1,The cnc press brake/hydraulic press brake/press brake is steel welded structure; 2,The cnc press brake/hydraulic press brake/press brake eliminates stress by vibration. 3,The cnc press brake/hydraulic press brake/press brake has high mechanical strength, and exceptional rigidity. 4,The cnc press brake/hydraulic press brake/press brake uses hydraulic top-drive, steady and reliable. 5,The cnc press brake/hydraulic press brake/press brake has mechanical stop and steel torsion bar to maintain synchronization and high precision. 6,Thecnc hydraulic press brake electric adjustment, manual fine adjustment, and digital display for backgauge distance and stroke of up ram. 7,Deflection compensation unit installed on the up die or on the down die if the operating pressure is bigger than 250T . 8. Hydraulic system of cnc press brake/hydraulic press brake/press brake: - Adopt integrated hydraulic control system, more reliable - Consist of motor, oil pump and valve groups - Be installed at the top of the oil box, which can assure that the cylinder is always full of oil when the slide is moving down at high speed - Complete working cycle can be realized through the control of hydraulic valve. - The working pressure at the right side of the wall board can be adjusted by the remote adjustment valve 9. Protective fence and the safety interlock of cnc press brake/hydraulic press brake/press brake : - Protective fence and the safety interlocker to ensure the operation safety. Power supply switch that is set in the electric box will be automatically turned off when the box's door is opened or the fence is turned up. Protecting barrier with safety interlocker is mounted on the back of the machine. Another, there are travel limit protection and foot pedestal mounted emergency off switch. Model Pressure (KN) Work table length(mm) Pillar Distance Throat depth (mm) Stroke (mm) Max.open height(mm) Motor power (kw) Weight (kg.) plywood
CNC Double Servo Pump Controlled Hydraulic Press Brake It transmits travel positions of the left and right cylinders to the computer through a raster ruler or a magnetic raster ruler. The computer controls the displacement and pressure of oil pump through servo motor to control the stroke, speed, position and pressure of the left and right cylinders. Thus, the right and left cylinders achieve synchronization.
Main features: 1.Totally eu streamlined design, mono block by welding robots & apparatus and stress relief process by annealing treatment. 2.Tma machine engineers utilize parametric 3d solidworks using fem & doe analysis as well as static and mechanism analysis. 3.Adopt integrated hydraulic system, more reliable and easy for maintenance. And the hydraulic system from bosch-rexroth, germany, 4.Mechanical synchronous mechanism and the complex compensation are designed so as to raise the workpieces precision., 5.The stroke and distance of the backgauge is adjusted by the motor and is well adjusted by hand, the adjustment is displayed by digital meters. 6.Inch, single, continuous operation mode being designed for the machine and reversing and maintain time can be controlled by the time relays. 7.Safe fence and the electric interlocker have been designed for the machine to ensure the operation safety., Standard equipment: 1.System intermediate upper clamps with anti wedges 2.Plate support arms 3. Powered depth axis 4. Backstop 5. Light guards 6. Top and bottom tooling, 7. Estun e21 nc control 8. Germany bosch-rexroth hydraulic , 9. Telemecanique/ schneider electrics 10. Hydraulic and electrical overload protection 11. Squaring arm and front support arms 12. Delta inverter with ball screw and polished rod with 0, 05 mm accuracy. 13. Side guard is standard meeting ce regulations. Estun e21s nc press brake control system: 1., monochrome lcd box panel. 2., integral factor programmable freely 3., automatic, positioning control 4.Spindle allowance offset 5.Internal time relay 6.Stock counter 7.Backgauge position display, resolution in 0.01mm The best bending results, you can bend longer and deeper parts with standard wc67y-bend series.
Our Quality Press brakes feature high durability, and provide precision bending capabilities, The Press brake main frames are constructed from rolled, stress relieved solid steel to prevent distortion during the bending process and under extreme continuous loads. Our Press brakes are produced in a high volume production process and therefore are able to be manufactured cost effectively, resulting in affordable price, representing value for money and quicker return on investment. Featuring an adjustable synchronized torsion bar with positive stop system ensures consistent and accurate bending beam parallelism tolerance to 0.01mm via the digital Control unit.
Supplier: Hydraulic CNC press brake
