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The CNC press brake is primarily a machine tool that is utilized for bending a metal sheet or plate into a shape determined by its die set. CNC press brake plays a very important role in sheet metal manufacturing.

• How to perform CNC press brake?

• How to adjust the gap between blades of CNC press brake?

• What should be considered when using CNC press brake?

How to perform CNC press brake?

Close the rear protective door of the CNC press brake. Turn on the power. Turn on the switch on the control panel of CNC press brake. Then, start the oil pump. The CNC press brake does not operate at this time. Release all emergency stop switches.

Adjust stroke. Pay attention to adjusting the stroke when using it. You must test it before bending. There must be a gap of plate thickness when its upper die descends to the bottom. Otherwise, it will cause damage to the CNC press brake. The adjustment of the stroke also has electric quick adjustment.

For the selection of bending notches for CNC press brake, a notch with a width of 8 times the thickness of the plate should generally be selected.

Backgauge adjustment generally has electric quick adjustment and manual fine adjustment, which is the same as the shearing machine.

Press down the blue "reset" button on the pedal and the "reset rearguard" button on the electric box, ensuring that the two blue reset indicator lights are off.

Turn the function forwarding switch to the "auto" position and press the motor start button after the controller self-test is over.

The CNC press brake finds the reference point and loads the corresponding bending program. Ensure that the mold installed in the CNC press brake is consistent with the programmed mold. Ensure that the sheet material is consistent with the programming page.

How to adjust the gap between blades of CNC press brake?

Remove the lower blade of CNC press brake and clean it piece by piece. Select one side to install tightly. Check the straightness of the blade in the horizontal and vertical directions.

Remove the upper blade of CNC press brake and clean it piece by piece. Then, the operation is same with that of the lower blade.

The upper blade is fixed. We adjust the blade gap by adjusting the lower blade.

The left and right screws of the lower blade increase the clearance. Loosen the four bolts on the table of the lower blade.

Manually turn the upper blade down to the proper position. The operator adjusts at the blanking area of the CNC press brake.

Use a feeler gauge to roughly adjust to 0.5mm from the unoccupied part of the upper and lower blades.

Manually turn the blade to the middle position and adjust it to 0.5mm.

Manually turn the blade up to the right position where the upper and lower blades are not disengaged. The middle position is roughly adjusted to 0.5mm.

Manually turn the upper blade to the proper position and start fine adjustment.

What should be considered when using CNC press brake?

Before working, you must check the surrounding area of CNC press brake for any objects that may cause harm to it. Make sure the surroundings are clean, especially backgauge. Check the position of the oil mark in the oil tank. Check the hydraulic part for leaks.

The CNC press brake should be operated by professors. The operators must wear the corresponding labor protection supplies.

After turning on the power switch of the CNC press brake, do not start the oil pump immediately. Start the oil pump only after the computer screen displays normal.

After starting the CNC press brake, run it for 2 to 3 minutes without anything. Run the slide block at full stroke for 2 to 3 times. Check the motor and CNC press brake for noise. If the temperature is low, the oil tank and oil circuit must be preheated.

Learn more about CNC press brake can know how to perform CNC press brake and the warnings of CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can help you learn more about the CNC machines.

The CNC press brake mainly performs straight-line bending of the plate. Through the use of simple molds and process equipment, the metal sheet can be pressed into a certain geometric shape. CNC press brake is actually a multi-purpose fabricating machine. CNC press brake is suitable for several types of metal forming operations.

• What are the failures of CNC press brake?

• How to solve the large bending angle error of the CNC press brake?

• How to maintain CNC press brake?

What are the failures of CNC press brake?

Sometimes, there is the large or small bending angles during CNC press brake operates. It may be that the plate is uneven or the plate thickness has changed. It is also possible that the shaft in the CNC press brake is caused by deviation.

The oil pump of CNC press brake is too noisy or heats fast. Even, the oil pump is damaged. The oil pump suction line leaks or the oil tank liquid level is too low, causing to suck. The oil temperature is too low and the oil viscosity is too high, resulting in high oil absorption resistance. The oil filter at the suction port is clogged. Coupling installation is too tight to make the motor shaft and the oil pump shaft nonconcentric.

The CNC press brake system is pressure-free or cannot be built up. The oil pump rotates incorrectly. Whether the pressure gauge is damaged. Whether the pressure control valve has an electrical signal or the valve is blocked. The pressure cartridge valve is blocked or stuck that cannot seal the oil.

How to solve the large bending angle error of the CNC press brake?

With the continuous development of CNC press brake manufacturing technology, CNC press brake has the advantages of high positioning accuracy, convenience, zero-activity disturbance compensation, and good consistency of processed products.

Check whether the compensation deflection of the compensation cylinder is large so that the zero position cannot be completely restored.

Check whether the quick clamp and grating ruler is loose.

Check whether there is any change in the bottom dead center of each bending.

Check whether the bow-shaped plate is installed in a standard way and whether the screw hole is deadlocked.

The large bending angle error of CNC press brake can also be caused by changes in the sheet, such as thickness, material, and stress。

There is inaccurate positioning of CNC press brake that whether the zero offset value of the proportional valve is appropriate or not. It may be impossible to return because the positioning cannot reach the bottom dead center.

How to maintain CNC press brake?

After each shift, clean the work area of CNC press brake by removing all debris with a dry cloth. Clean the tools, bench, supports, slide guides and other accessories. Clean the backstops and guides of the backgauge. Do not use compressed air for cleaning.

The lubrication parts are sufficiently greased.

The motor and oil pump of CNC press brake operate normally without noise and overheating.

The safety protection device is safe and reliable.

Check whether the pressure of the hydraulic system is within the rated range.

The indicator is sensitive and reliable.

When repairing after the end of production, the slider needs to be lowered to the lowest point.

Check whether the fixed part of the mold is loose before work.

When working, the CNC press brake must not exceed the maximum pressure that is 160KN.

Learn more about CNC press brake can know the failures of CNC press brake and how to maintain CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can help you keep CNC press brake in better condition.

The V groover machine is the new type of sheet metal processing machinery, which is the key equipment of V cut bending technology. The V groover machine was used primarily for the convenience store, food service, supermarket and other related commercial applications.

• What is the structure of V groover machine?

• What are the advantages and disadvantages of V groover machine?

• How does V groover machine work?

What is the structure of V groover machine?

The CNC V grooving machine is controlled by 4 axes, that are, the X-axis, Y1-axis, Y2-axis and Z-axis. It has high positioning accuracy. Servo motors command all motors.

The Hydraulic system of V groover machine is divided into two groups. The pneumatic system is the part of the back gauge to provide clamping force and tightly hold plate.

The electrical control system of V groover machine involves PLC, actuator, touch screen, an electric control element, and an electrical cabinet. The electrical board is installed on the inside for easy maintenance and strong protection.

CNC V grooving machine is compact in structure and reliable in performance. It is easy operation without deformation. V groover machine is wholly welded by steel to eliminate internal stress by vibration.

What are the advantages and disadvantages of V groover machine?

Small bending force is required for V groove machine to bend the workpiece with a small bending radius. There are few color changes at the bend round edges.

V groove machine leads to small straightness errors of the bend round edges of the narrow long workpiece.

The V groover machine adopts a general mold to bend the workpiece with a complicated or enclosed cross-section.

According to different processing demands, the speed of the CNC V grooving machine can be selected.

The V groover machine adopts square alloy blades with four cutting edges, ensuring the accuracy and greatly reduce change time.

The price is high, as well as the maintenance costs.

The slicing loss is large, which causes relative high consumption cost.

The edge of the groove is straight so that it is easy to crack behind the wall. The crack prevention treatment is required when the wall is painted.

How does V groover machine work?

The metal plate is fixed. The metal material on the movement track is cut off by using the mechanical movement of the V groover machine blade to form a process V groove.

V groover machine is a tool containing 4 axes. The X-axis system of V groover machine is composed of servo motor, timing belt, timing wheel, ball screw, linear guide rail, back gauge rack, and clamping tools. The motor drives the ball screw to provide the accurate positioning power for the back gauge. The Y1- and Y2-axis system is composed of AC servo motor, timing belt, timing wheel, ball screw, and mobile clamp. The motor moves linearly on the linear guide to achieve accurate positioning. The Z-axis system is to drive the ball screw and cutter seat through timing belt to provide precise positioning power for the tool holder.

Learn more about V groover machine can know the structure of V groover machine and how V groover machine works. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. specializes in providing different types of products.

The essence of a CNC press brake is to bend thin plates. The CNC press brake is suitable for bending corners of most materials. The CNC press brake bends directly without splicing, grooving and welding rod. Its beveled corner is beautiful and does not leak.

• How about the performance of CNC press brake?

• How to improve the performance of CNC press brake?

• What is the trend of CNC press brake?

How about the performance of CNC press brake?

The CNC press brake is controlled by a closed-loop control system and a grating ruler synchronously with the main cylinders on both sides. which are independently restricted by the CNC. CNC press brake has accurate feedback data to ensure accurate operation of the slider.

CNC press brake adopts the hydraulic convex automatic compensation system to deal with the deformation of the slider during the bending process. The compensation is automatically adjusted by the numerical control system, which is convenient and accurate.

CNC press brake makes use of a functional backgauge mechanism, choosing to control multiple backgauge shafts. The parts in the backgauge, such as guide rails, lead screws and bearings, all use imported original parts to ensure the accuracy of the backgauge.

The CNC press brake adopts an integral-welded structure, which is convenient for transportation and processing.

How to improve the performance of CNC press brake?

The processing method adopted by the CNC press brake is mainly controlled by the direct control of the CNC programming. The processed sheet material has strict requirements. But the deformation generated by the CNC press brake in the work cannot be effectively compensated. Therefore, the elastic deformation of various mechanical structural components is controlled within the smallest possible limit to achieve the required machining accuracy and surface quality.

To effectively improve the rigidity of the spindle of the CNC press brake, it is necessary not only to adopt a three-support structure, but also to use double-row short cylindrical roller bearings and angular contact centripetal thrust bearings with good rigidity. It is to reduce the deformation of spindle.

To improve the rigidity of some large parts in the CNC press brake, it is recommended to use a machine bed with a closed interface and adopt a hydraulic balance to reduce the deformation caused by the position change of the moving parts. In addition, the contact stiffness between the various parts of the CNC press brake and the improvement of the load-bearing capacity are also important.

What is the trend of CNC press brake?

Surrounding the requirements of quality, efficiency and technological change, CNC press brake has undergone profound changes at the technical level. The functions of CNC press brake are constantly enriched, including the process concentration and composite technology. The CNC press brakes have new developments in structural layout and the application. CNC press brake is open, intelligent, networked, high-speed and high-precision. Its purpose is to improve production efficiency and accuracy, ensure quality and maximize benefits.

The constant pursuit of high quality and high efficiency is the eternal theme and goal of the CNC press brake industry. It is power to promote the development of the process equipment. Process requirements and changes are the basis and foundation for the development, innovation and change of CNC press brake technology.

Domestic CNC press brakes have gone through a long history of 50 years of development. It has been developed rapidly in the past 10 years, especially received the attention of the government and set up major technical research projects.

Learn more about CNC press brake can know the performance of CNC press brake and the trend of CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is one of the most powerful companies in China. We hope we can have good cooperation.

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