Small Nc Hydraulic Press Brake- Factory Manufacturers Suppliers From China

Press brake is a kind of general equipment for bending sheet. Press brake can press metal sheet into a certain geometric shape by using a simpler general mold. For sheets of different thicknesses, V-groove lower molds with different opening sizes should be selected. The required bending force can be obtained from the bending pressure gauge.

• What are the characteristics of press brake?

• What are the specifications of press brake?

• What is the future trend of press brake?

What are the characteristics of press brake?

1. The oil cylinders at both ends of the body of the press brake are arranged on both sides of the slider to directly drive the slider. A mechanical stop is arranged in the oil cylinder to control the bottom dead center position of the slider. The upward end position of the slider is adjusted by the stop beside the travel switch.

2. The bottom dead center of the slide block of the press brake and the end position of the back gauge stroke are shown by the corresponding rotation number table.

3. The torsion shaft of press brake is used to forcibly synchronize the two ends of the sliding block and can withstand a certain amount of eccentric load.

4. The upper part of the press brake is equipped with a precision compensation mechanism, which can make the workpiece obtain consistent bending accuracy over the entire length.

What are the specifications of press brake?

The accuracy of press brake is a factor that needs to be carefully considered. It is this factor that determines whether you need a CNC or manual press brake. If the press brake requires in the range of 1° and cannot be changed, you should choose CNC press brake. The repeatability of the slider of the is in the range of 0.002 inches with the deviation of 2 to 3°under the condition of using a suitable mold.

The wear of each mold must be checked by measuring the length from the front end of the punch to the shoulder and the length between the shoulder of the die. The deviation per foot should be around 0.001 inches and the total length deviation should not be greater than 0.005 inches.

When free bending is adopted, the bending radius of press brake is 0.156 times of the opening distance of the die. The opening distance of the die should be 8 times the thickness of the metal material. If the bending radius is less than the thickness of the material, a punch that a radius at the front end is smaller than the thickness of the material must be used.

What is the future trend of press brake?

The press brake is a machine that can bend thin plates. Traditional processing methods in the metal sheet workshop include plate shearing, punching and bending. A large number of molds are needed. Adapting to modern metal sheet processing, press brake come into being, reducing production costs and improving processing technology.

With the development of technology, the modern production mode puts forward higher requirements for the production equipment. In the past, the press brake had to bend the entire batch of workpieces when performing multi-pass bending processing, which required continuous work of refueling. However, the stopper and the slider stroke of press brake can be controlled, which can continuously bend batches of workpieces in multiple passes. The press brake ensures that the workpieces have high forming accuracy and high degree of identity, which can greatly improve production efficiency and have a promising development prospect.

Learn more about press brake can know the characteristics of press brake and the future trend of press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is majored in manufacturing high-quality CNC machines and offering the best solutions.

Nowadays, press brakes are offered in a broad range of capacities from portable models to custom machines. With advanced technology, press brakes are developing fast, such as CNC sheet supports, programmable tooling, adaptive bending, and user interface technologies.

• How to grasp the size of bending for press brake?

• How should you use press brake?

• How to adjust the bending angle of press brake?

How to grasp the size of bending for press brake?

The main purpose of using a press brake is to grasp the size of the bending.

Avoid using a press brake to bend the edge or large-angle alignment.

Preliminary inspection is carried out before formal processing. Cyclic inspection is carried out during the use of press brake.

In order to avoid accumulative errors, the unfolded size must be measured every time when material is added.

Choose a good processing method and a good technical preparation method to simplify the processing of press brake.

The press brake selects the appropriate machine according to the accuracy requirements of the processed products.

Do not choose tools that have decentraction. Make sure that the tip of the upper die of press brake is on the same straight line before processing.

For products whose edges must be bent by a press brake, the front bending angle must be less than 90 degrees.

Determine the accuracy of the measuring instrument before processing.

How should you use press brake?

Strictly abide by the safe operation regulations of press brake. The user must wear labor protection. Before starting, carefully check the motor, switch, circuit, grounding, and the control parts and buttons of the press brake.

Run press brake idling for 1 to 2 minutes and move on the slide 2 to 3 times at full stroke. If there is anything abnormal, stop immediately to troubleshoot the malfunction.

The sheet material must be compacted when bending to prevent hurting people during bending. The power supply must be cut off when adjusting the sheet metal die. When changing the opening of the lower mold, no material is allowed to come into contact with the lower mold. When press brake works, no one is allowed to stand behind the press brake.

It is forbidden to use press brake molds to fold over-thick iron plates or hardened steel plates.

To close the press brake, place a wooden block on the lower die under the cylinders on both sides and lower the upper slide plate onto the wooden block.

How to adjust the bending angle of press brake?

Before using the press brake to bend the material, you need to adjust its various angles, including the bending force, the distance of the back gauge, the upper limit of the slider, the speed of the slider, and the adjustment of the upper and lower mold gaps.

The adjustment of the angle of the press brake is mainly to calculate the value of the bending force and indicated pressure according to the calculation formula. Then, adjust the handwheel of the overflow valve to generate the force which is slightly larger than the force of the folded plate.

The adjustment of the backgauge distance of the press brake needs to position in the length direction when bending the sheet. The button on the front button box controls the motor adjustment, whose value can be from the revolution table on the button box. There is a handwheel for fine adjustment.

The adjustment of the upper limit of the slider of the press brake needs to be realized by adjusting the position of the striker. The rising slider can stay at the required center position, which can shorten the stroke distance of the slider. It reduces the working cycle time and increases productivity.

The adjustment of the gap between the upper and lower molds in the press brake is completed by the button on the button box. Operate in the direction indicated by the press brake label. The initial adjustment gap should be greater than the thickness of the plate.

Learn more about press brake can know how to use press brake and how to adjust the bending angle of press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can offer you the best purchasing experience. Please contact us!

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.

As a kind of CNC machines, laser cutting machines adopt high-power laser beams. The material is quickly heated to the evaporation temperature and evaporates to form pores. Laser cutting machine has non-contact processing that the mechanical part of the head has no contact with the workpiece

 

•  What are the features of laser cutting machine?

•  How about the speed and power of laser cutting machine?

•  Where can laser cutting machine be used?

 

What are the features of laser cutting machine?

The CNC laser cutting machine uses the laser beam to melt the materials in a non-contact manner.

Laser cutting machine has low-energy consumption. Traditional blanking press consumes 50kW, which is equal to a 4kw laser cutting machine of 10kW.

Laser cutting machine has high security. The blanking press has a large blade that can move up and down quickly to cut. Due to the high automation, the machines can cut automatically, greatly decreasing human intervention. It also has a protective cover, which can protect the operator’s safety and the environment.

Laser cutting machine can save raw materials that are more efficient to use materials.

The laser cutting machine can cut any strength material at a high speed and high precision.

Blanking presses consist of expensive parts, causing high maintenance and replacement costs. However, the laser cutting machine requires less maintenance with few moving parts.

The traditional machine is equipped with a fixed design tool for each part. The laser cutting machine adopts programming technology, which is flexible and convenient without changing any mechanical parts.

 

How about the speed and power of laser cutting machine?

The power of the laser cutting machine is usually above 7W. It is determined according to the material, thickness and processing effect. FPC cutting usually uses 10W, 12W or 15W machines, while PCB cutting adopts 18W or 20W one.

The processing speed of the laser cutting machine is directly related to the material, thickness, and power. The higher the power, the higher the processing speed. The thinner the material thickness, the higher the processing speed. The higher the material absorbs laser beam, the higher the processing speed. The processing speed of PI film is much higher than the processing speed of thin metal.

The laser cutting machine is better to process thin materials, while the processing efficiency will be lower for other materials. The laser cutting machine can process thicker materials such as PCB, carbon fiber, and metal material. PCB can be processed with no more than 2mm, carbon fiber no more than 1mm, and metal material no more than 0.2mm.

 

Where can laser cutting machine be used?

As a new type of tool, laser cutting machine is increasingly used in various industries, including laser engraving machines, laser marking machines, and laser welding machines.

It can be used in sheet metal processing, aviation, aerospace, electronics, electrical appliances, subway accessories, automobiles, food machinery, textile machinery, engineering machinery, precision accessories, ships, metallurgical equipment, elevators, household appliances, craft gifts, tool processing, decoration, advertising, metal processing, kitchenware processing and other manufacturing and processing industries.

 

Learn more about laser cutting machine can know the features of laser cutting machine and the uses of laser cutting machine. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. has been a high-tech enterprise since 1988. We are glad to hear from you.

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