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Press brakes have many types, which largely depend on what you are making and the tools. It also depends on the size and type of the metal to be bend and the properties of materials. It is recommended to have a press brake that is flexible and can handle more types of materials.

• How to check press brake?

• How to lubricate press brake?

• How to maintain press brake?

How to check press brake?

Check whether the liquid valve of the press brake mold is fully opened. If it is oil contaminated, the filling valve spool is not flexible, resulting in insufficient filling. The filling valve of the press brake needs to be cleaned and reinstalled.

Check whether the solenoid coil of the overflow valve of the press brake is energized. Whether the voltage of the solenoid coil meets the standard.

Check whether the cartridge valve or the main valve core of press brake is stuck. Whether the orifice is blocked. Disassemble the overflow valve of the press brake mold. Clean and reinstall it.

Check the oil level of the mold oil tank of the press brake to see if the oil level is too low. If the filling port is not filled with water, the upper cavity of the cylinder is filled with liquid during fast forwarding, causing insufficient filling. Add the oil in the fuel tank to more than 5mm above the filler port to make sure to submerge the filler port completely.

How to lubricate press brake？

All the rollers and corresponding parts in the press brake must be refueled, which is three times a week.

Put butter on the upper and lower blades of press brake. Add oil three times a week. Lubricate the clutch area of the knife.

The seal coil in the cylinder of the press brake must be cleaned and lubricated at the place where the sheet metal is bent.

The oiling work of the sliding bearing and the feeding frame of the press brake needs to be carried out every three days.

When refueling the place of the feeding shaft presser plate of press brake, we need to use a grease gun to inject the oil. Clean the place where the oil is added before refueling.

If it is to refuel the connection of the brake of press brake, move it back and forth after refueling. Lubricate it three times a week and pay attention to cleaning.

How to maintain press brake?

An inspection of press brake will allow to notice and address small issues before they become significant problems.

Verify that the press brake is in clean condition. The table and die area should be free of mill scale.

If the press brake is tooled up or a different toolset needs to be set up, verify the punch and die alignment and inspect the condition. The punches and dies should be free of dents. Indentations and cracks show that the tool has been overstressed needed to be reconditioned or replaced.

The proper operation of press brake, including up button, e-stops, foot pedal control, and indication lights should be in good condition within few seconds.

If additional guarding is present, make sure it is set up according to specifications.

Hydraulic oil is the lifeblood of press brake. It is vital to keep the oil clean and filling the oil reservoir. Check the oil level in the tank periodically. An insufficient oil level will cause erratic operation of the ram and damage the hydraulic pump.

Learn more about press brake can know how to check press brake and how to maintain press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is an honest and reliable company you can choose to expand the Chinese market.

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 steel bent by the CNC press brake has a relatively large advantage over the others. Because the residual stress of the steel material of the CNC press brake is relatively small with dense weld seam. The CNC press brake in the production practice produces section steel with very messy interface shapes, which is impossible for traditional processes.

 

•  What are the features of CNC press brake?

•  What are the functions of CNC press brake?

•  What are the applications of CNC press brake?

 

What are the features of CNC press brake?

CNC press brake has direct angle programming with angle compensation function.

The grating ruler does real-time detection to feedback correctly. CNC press brake takes full closed-loop control. Backgauge and slider dead gauge positions accurately within 0.02mm.

The upper mold of CNC press brake adopts a quick clamping device, while the lower mold uses a wedge deformation compensation mechanism.

With multi-step programming function, CNC press brake can realize multiple automatic operation, completing one-time processing of multi-step parts. It improves production efficiency.

The imported hydraulic system with stable performance and compact structure can be selected according to user requirements. The backgauge can be driven by ball screw and timing belt.

The press brake uses a touch screen with a CNC module, which makes it easy to program and very simple to operate.

CNC press brake makes full use of electrical-hydraulic control. The slider operation can realize single, continuous stroke and halfway stop operations, which is easy to realize automatic operation.

 

What are the functions of CNC press brake?

The user interface is the dialogue interface between the CNC press brake and all users, especially non-professional users. Through window and menu operations, functions such as graphic simulation, graphic dynamic tracking, simulation and fast programming can be realized.

CNC press brake performs visualization of scientific computing. Information exchange is no longer limited to text and language, but can directly use visual information such as graphics, images, and animation. Visualization technology can be used for computer-aided design, manufacturing, automatic parameter setting, tool compensation, display and visual simulation of machining process.

The CNC press brake is equipped with a high-performance programmable controller, which can be programmed directly with ladder diagram or high-level language. It can also be debugged and edited online to establish its own program.

 

What are the applications of CNC press brake?

The CNC press brake is to use the equipped mold to bend various shapes of metal sheets into various cold-shaped parts. It is used in sheet bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

Precise metal materials are must for the aerospace industry. Aircraft requires as much of a guarantee to safety and performance as possible. CNC press brake can be used to manufacture components of the motion control, sensors and actuation systems. CNC press brakes are also able to manufacture braking and landing parts.

A variety of metal materials are produced with CNC press brake for the automotive industry, ranging from cold roll steel, stainless steel, aluminum to carbon steel. They would become transmission covers, seat parts, brake components, battery housings, and many other parts used in building automotive engines.

Metal bending is to create aesthetically components that are perfectly rounded and finished. The materials bent by the CNC press brake go into making stoves, microwaves, refrigerators, dishwashers, bed frames, entertainment centers, washing machines, and dryers, or even outdoor furniture

 

Learn more about CNC press brake can know the features of CNC press brake and the applications of CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is equipped with many professors in manufacturing and offering solutions. 

A variety of press brake are now available in the market. However, they are mainly categorized as mechanical or hydraulic press brake, depending on the means of applying force. With the advancement in technology, the CNC press brakes come into being. CNC press brake has the capability to deliver force in a limited vertical space in order to punch or bend the metal sheet.

• Why we use CNC press brake?

• How does CNC press brake work?

• How to calibrate CNC press brake?

Why we use CNC press brake?

CNC press brake is the most accurate and precise type of press brake. CNC press brake is a modernized and more accurate version of the hydraulic press brake that is controlled by computers.

The processing speed of CNC press brake is fast. The corner processing surface is beautiful with high strength.

CNC press brake transforms manual welding into fully automatic machine operation, improving quality and efficiency, CNC press brake reduces labor costs and shortens the production cycle of products.

CNC press brake is a new large-scale machine. The high precision is favored by many people. It can adopt flexible operation mode, which can be linked with two machines to solve the problem of processing long plates.

CNC press brake be operated and processed by a single machine to effectively improve the use. It reduces energy consumption. The compensation is automatically adjusted by the numerical control system, which is convenient and accurate.

How does CNC press brake work?

A CNC press brake works quite similarly to a hydraulic press brake. However, the difference is that CNC press brake is controlled by slider stroke and backgauge. All you have to do is input the number of pieces that require bending along with the bending angle, getting the job done with accuracy.

CNC press brake has a ram fitted with a punch that forces the material being worked into a die. The material is formed into an angle corresponding to the angle of the die or the depth the punch forces it into the die.

CNC press brakes can be pre-programmed to bend the sheet metal through many various bends completing one part at a time. It uses a V blade to push on the sheet metal with pressure against a die.

How to calibrate CNC press brake?

The CNC press brake adopts electromagnetic force clamping so that the pressing plate can be made into a variety of workpiece with side walls. The operation is simple.

Metrology personnel required to calibrate CNC press brake need to open the cover of the saw that the optical components can be adjusted on the worktable, the spindle and the independent tripod. The time that spatial calibration process needs depends on the size of the CNC press brake. If the part is within the tolerance range by the three-coordinate surveying and mapping machine, the spatial calibration is not so necessary.

The trajectory of the calibrated CNC press brake is not a straight line but lateral movement. Traditional correlators cannot do this, except for the single-aperture laser correlation instrument.

When testing a CNC press brake, use a moderate probe to measure the proportion of the drawing part. The specified spatial error can be listed as an error table or offset table. The software can correct the coordinates of the probe.

Learn more something about CNC press brake can know the working principle of CNC press brake and how to calibrate CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is your best partner whether from the high-quality CNC machines or the delivery.

Wysong THS100-144 Wysong Ths100-144 Press Brake 145" Bed, W/control, 25 Hp, *contains 2 Pieces 0122-075-0001.

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