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The shearing machine is an automatic processing equipment that precisely controls the size of the sheet metal processing, performs automatic cycle shearing processing of metal sheets, and transports to the next step by a feeding cart. The shearing machine is used on the production line to cut the sheet metal, collected by the feeder, and automatically load to the production line.

• How to choose an appropriate knife for shearing machine?

• Does shearing machine need to be lubricated?

• How to change the oil of shearing machine?

How to choose an appropriate knife for shearing machine?

The material performance of the blade of the shearing machine is the basic factor that affects the surface quality, cutting efficiency and lifespan. The performance of the tool depends mostly on the material, the geometric parameters, and whether the selection and design of the tool structure are reasonable.

There is the reference sense for the price of shearing machine blades You can first know the market prices of the raw materials used in the production of shear blades. Then, compare the quotations of shear blade manufacturers.

In the production of shears blades, it is worth noting heat treatment though each process is important. A qualified shearing machine blades must be quenched in the furnace at least twice to achieve the same hardness. The cutting edge is tough but not brittle, which has a long-lasting wear-resistant effect.

Generally, the parallelism of the shearing machine blades is 0.03mm and the thickness of the full length cannot exceed 0.03mm. You can use measuring tools to compare the errors of the two ends of a single piece. Then, measure the accuracy of the whole set of blades. Pay attention to see if there is no gap at the joint.

Does shearing machine need to be lubricated?

The shaft sleeve of shearing machine should be lubricated. Use a small amount of calcium-based grease oil gun. Shearing machine shears plates of different thicknesses, all need to adjust different gaps.

The cylinders of the shearing machine should have lubrication. Adopt medium amount of calcium-based grease oil gun. Shearing machine oil cylinder is the source of power, acting on the oil cylinder to drive the movement of the tool holder. It is necessary to be lubricated when the backgauge of shearing machine do back-and-forth adjustment.

The sliding nut of the backgauge of the shearing machine should be lubricated. Smear medium amount calcium-based grease. The backgauge motor drives the nut to complete the adjustment of the backgauge.

The upper and lower ends of the return cylinders of the shearing machine need lubricating. Make use of small amount of calcium-based grease oil gun. They are filled with pure nitrogen under pressure. It is the device to complete the return stroke after the shearing machine finishes cutting.

How to change the oil of shearing machine?

When the oil working time on the shearing machine reaches 2,000 hours, it needs to be replaced. The cycle for each subsequent replacement is 4,000 hours or two years.

To prevent the oil of the CNC shearing machine from infecting the environment, clean around the fuel tank. Then, remove the fuel tank cover and the oil inlet and outlet pipes.

The oil should be changed when the oil temperature is still hot and the slide block of the CNC shearing machine is at the top dead center.

Clean the oil inside the tank with clean cloth and transparent solvent. Replace with a new filter. Add new oil.

After changing the oil, start the deep well pump to circulate oil for about one hour before starting the CNC shearing machine.

Attention must be paid to the waste oil cleaned out in a unified and centralized treatment, instead of discharging directly into the natural environment to cause pollution.

Learn more something about shearing machine can know the importance of changing shearing machine oil and how to change. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is good at manufacturing high-quality products, as well as offering the best solutions.

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 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.

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.

Automatic cylinder crowning system overcomes the impact on the workpiece quality caused by ram deformation, to ensure the good straightness and bending angle of the final products. ... Electrical system of press brake machine. ... iam using WE67K-250 hydraulic press brake with CNC D51A DELEM,now the problem is that the ram is stuck downward and ...

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