CNC Bending Machine 100t- Factory Suppliers Manufacturers From China

Press brake is a mechanical or hydraulic machine for bending sheet metal and plate material, which is common in engineering workshops. Press brake requires different methods of approach to achieve the desired results. From forming wind tower poles to intricate electrical cabinet components, press brakes are a vital tool.

• What are the common faults of press brake?

• How to avoid electric leakage when the press brake is working?

• Why there are errors when using press brake?

What are the common faults of press brake?

Press brake makes poor surface roughness of the workpiece. The tool tip of the press brake is damaged that is not sharp. The press brake resonates leading to the unstable placement. The press brake has a crawling phenomenon, resulting in poor processing technology.

The workpiece produces taper-size head. The level of the press brake is not adjusted properly that one side is high and the other is low, resulting in uneven placement. When turning the long shaft, the material fed is too hard to be cut deeper. The tailstock thimble and the spindles are not concentric.

The size of each workpiece is inconsistent. The carriage of the press brake runs at high speed for a long time, resulting in the wear of the screw and bearing. The repeated positioning accuracy of the tool holder produces deviations during long-term use. The carriage can accurately return to the starting point of processing every time, but the size of the processed workpiece is still changed. It is generally caused by the main shaft, caused by the high-speed rotation to wear.

How to avoid electric leakage when the press brake is working?

For the press brake, it is inevitable that there will be leakage in the working process. If the leakage is not handled in time, it will damage to safety.

In order to avoid the occurrence of electric leakage when the press brake is working, the press brake must be equipped with a leakage protector, it is a current-driven leakage maintenance device, which has a good effect on the protection of the press brake.

When operating the press brake, if the insulation of the electrical installation equipment is damaged, the cover will be charged. The correct grounding and zeroing work must be done. The electrical installation of the press brake should be maintained with high-voltage grounding to reduce the risk of electric shock.

The wiring operation of the press brake is also very simple. It is enough to connect the metal shell and the common maintenance neutral line firmly. Lead out from the neutral line on the power side of the leakage maintainer. Under the protection of its maintainer, the press brake can maintain a good and stable situation.

Why there are errors when using the press brake?

The outer circle of the bend is a cone. The connection between the front and rear centers is not coaxial with the spindle axis, which is caused by the wrong position of the tailstock center of the press brake.

The workpiece vibrates when bending. It may be that the tailstock sleeve of the press brake extends too long or the support of the workpiece is too loose. The mold is not sharp enough or the arc is too large. The bearing clearance of the rotary center is large. The clearance of the medium and small sliding plates is too large.

The mold does not meet the requirements. The mold and the main shaft axis of press brake are not on the same axis. The circular runout caused by the wear of the bearing. The center hole of the workpiece is not cleaned or is fuzzed. The center hole does not work because the lever in the center of the mold touches the end face of the chuck.

Learn more about press brake can know the faults of press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is equipped with many professors and advanced equipment.

LZK independently researches and develops a variety of high-power fiber laser cutting machines with fast speed, good effect, no burrs and slag. There are a variety of power options to meet the different needs of production. A fiber laser cutting machine has greater functionality.

• What is the difference between fiber laser cutting machine and YAG laser cutting machine?

• What is the difference between CO₂ laser cutting machine and fiber laser cutting machine?

• What are the cutting advantages of fiber laser cutting machine?

What is the difference between fiber laser cutting machine and YAG laser cutting machine?

The technology of fiber laser cutting machine is higher than that of YAG laser cutting machine that the cutting quality is good and the efficiency is high. But the price is much higher than YAG's.

YAG laser cutting machine has low cost and can cut highly reflective materials, such as aluminum, copper and other non-ferrous metal materials that cannot be cut by fiber laser cutting machines. However, YAG laser cutting machine is a low-power laser cutting machine, which can only cut sheet materials below 8mm. The fiber laser cutting machine can achieve very high power in a very small package.

The resonant cavity of the fiber laser cutting machine has no optical lens so that it does not need any adjustment or maintenance.

The cutting speed of the fiber laser cutting machine is 4 to 5 times faster than that of YAG laser cutting machine. Therefore, it is available for mass production.

The photoelectric conversion efficiency of the fiber laser cutting machine is about 10 times higher than that of YAG laser cutting machine.

What is the difference between CO₂ laser cutting machine and fiber laser cutting machine?

Fiber laser cutting machines have gradually replaced CO₂ laser cutting machines and traditional processing methods.

CO₂ laser cutting machine generates the laser beam, which is transmitted through the reflector. However, fiber laser cutting machines are transmitted through diodes and fiber optic cables.

The appearance of fiber laser cutting machine is more compact due to the different laser transmission structure, thereby saving workshop space.

Due to complete solid-state digital module and single design, fiber laser cutting machine has higher electro-optical conversion efficiency. The actual utilization rate of each power supply unit of CO₂ laser cutting machine is about 8% to 10%, while fiber laser cutting machine is about 25% to 30%. It increases the energy efficiency to more than 86%.

Fiber laser cutting machine has the characteristics of short wavelength, which improves the absorption of the cutting material to the beam. It enables to cut materials like brass, copper and non-conductive materials.

Due to the purity of the CO₂ gas, the resonant cavity of the CO₂ laser cutting machine will be polluted and needs to be cleaned regularly. The reflect mirror needs to be maintained and calibrated. Fiber laser cutting machine is environmental-friendly.

What are the cutting advantages of fiber laser cutting machine?

The positioning accuracy of the fiber laser cutting machine is 0.05mm and the repeat position is 0.03mm.

The fiber laser cutting machine has a narrow slit. The laser beam is focused into a small spot so that it can reach a high-power density.

The cutting surface of the fiber laser cutting machine is smooth that there are no burrs.

The cutting speed can reach 10m per min, which is much faster than others.

The fiber laser cutting machine has good cutting quality. The cutting edge is little affected by heat without thermal deformation of the workpiece. The collapse of the material formed during punching and shearing is completely avoided.

Learn more something about fiber laser cutting machine can know the difference between CO₂ laser cutting machine, YAG laser cutting machine and fiber laser cutting machine. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can help you to resolve your problems.

The shearing machine cuts sheet metal, plates, bars, and tubing of various cross-section into pieces by subjecting to shear force. It typically uses a punch and a die, which may be of any shape that is similar to a pair of scissors. Both the shearing machine and the laser cutting machine can shear the plate.

• What is the difference between shearing machine and laser cutting machine?

• What is the difference between gate-type and swing-type plate shearing machine?

• Which shearing machine can be viewed as high quality?

What is the difference between shearing machine and laser cutting machine?

Laser cutting machine is a piece of blanking equipment, which can cut boards of any shape, including straight, line and curve, holes and complex geometric figures. The laser cutting machine uses a focused high-power density laser beam to irradiate the workpiece to quickly melt, vaporize, ablate or reach the ignition point of the irradiated material. At the same time, the molten material is blown away by the coaxial high-speed airflow of the beam to cut workpiece. The incision of laser cutting machine is high but small without burrs. The cutting speed is based on the thickness of the steel and the power of the laser.

Shearing machine is a straight-line machine, which is mainly used to cut the straight edge of various sizes of metal plates. Although shearing machines are also blanking equipment, they perform simple shape cutting. Shearing machine is widely used in various industrial sectors such as steel rolling, automobiles, ships, tractors, bridges, airplanes, electrical appliances, instruments, boilers, and pressure vessels. The steel plate cut by the shearing machine has low degree, large cut and high roughness with burrs at a slow cutting speed. The cutting quality decreases more according to the thickness of the material.

What is the difference between guillotine and swing-type plate shearing machine?

The guillotine shearing machine is used in industries such as automobiles, tractors, rolling stock, ships, motors, and instruments. It is also suitable for stretching work of various high-strength alloy plates. The guillotine shearing machine adopts an integral welded-frame structure and has vibration treatment so that is has good rigidity, high precision and good precision retention. A three-point supporting shaft rolling guide rail is adopted that the upper tool holder rolls between the rolling guide rails without gap. The lifespan is determined by turning the hand wheel. The movable blade base and the four-edged long blade are convenient to adjust the uniformity of the blade gap, improving the cutting quality and extending the lifespan. The guillotine shearing machine uses tandem cylinder synchronization system with even force. By adjusting the flow rate of the tandem cylinders, the shearing angle can be easily to meet the needs of different shear plate thicknesses.

The swing-type plate shearing machine is used in the stretching, bending, extrusion, forming and other processes of metal sheets in the power industry and aviation industries. Compared with guillotine shearing machine, swing-type plate shearing machine mostly adopts oblique-blade, which is widely used due to simple structure, low failure rate, and high efficiency. As the tool holder rotates, the shearing angle and gap will change.

Which shearing machine can be viewed as high quality?

Relying on the guide rail, the shearing machine can realize intelligent movement. The cutting length and thickness are not limited by the size of the shearing machine. Even the guide rail can be lengthened as needed.

The shearing machine replaces manual feeding and adopts heavy-duty robots, which can load 5 tons at a time. It saves manpower and effectively avoids safety accidents.

The shearing machine has zero loss during the cutting process. The feeding platform can automatically flip the steel plate. In addition to eliminating manual operations, it also avoids the material waste caused by the long steel plate. During the operation, no pollutants are generated.

Learn more about shearing machine can know the difference between shearing machine and the laser cutting machine. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can help you know more about the CNC machines.

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.

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Our hydraulic sheet metal shears are available with medium to heavy-duty power capabilities. ... Plate Shear SH-120250-HD $ Call for Availability. 120” length; ¼” mild steel capacity ... Sheet Metal Shear SH-12003-HD $ Call for Availability. 120” length; ¼” thick mild steel capacity; 220V 3-phase power; Schneider NC controller ...

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