How to disassemble the blades of CNC shears and what are the characteristics of hydraulic shears?

Disassembly steps of CNC shearing machine blade:

1. Start the hydraulic shearing machine, adjust the cutting angle to 1, 0°, and adjust the blade gap to the maximum value of 0, 48mm;

2, Anhui Yongya waits for the hydraulic shearing machine tool post to run up and down for several rounds, shut down the machine tool, and disconnect the main power supply of the hydraulic shearing machine;

3. Remove the protective fence of the hydraulic shears, the pressure cylinder (note that there is hydraulic oil overflow) and the knife seat cover;

4. Disassemble the lower blade of the hydraulic shearing machine first: loosen all the mounting screws of the lower blade, and use a long wooden square to press the lower blade against the back of the machine tool to prevent the lower blade from falling backwards or slipping off. Remove the screws on the lower blade , And then pull out the lower blade from the side of the hydraulic shear;

5. Disassemble the upper blade of the hydraulic shear: loosen all the mounting screws of the upper blade, insert two suitable wooden squares between the workbench and the upper blade, and firmly press the upper blade, remove the screws on the upper blade, Then slowly loosen the pad into the wood square, and at the same time pull out the upper blade from the side of the hydraulic shear.

How to disassemble the blades of CNC shears and what are the characteristics of hydraulic shears?

Hydraulic shears

The characteristics of alloy tool materials for hydraulic shears:

1. Hardness Cemented carbide contains a lot of hard carbides, and its hardness is much higher than that of high-speed steel materials. The higher the hardness of the cemented carbide, the better the wear resistance.

2. Anti-adhesion cemented carbide has a higher bonding temperature than high-speed steel, so it has a higher resistance to adhesion and abrasion.

3. Thermal physical properties The thermal conductivity of cemented carbide is higher than that of high-speed steel, which is about 2~3. Because the heat of TiC is lower than that of alloy, the thermal conductivity of TiC-containing alloy is also worse.

4. Toughness The toughness of cemented carbide is much lower than that of high-speed steel. It is not suitable to be used under strong impact and vibration, especially in low-speed cutting. The phenomenon of bonding and chipping is more serious.

Shearing machine blade, it is mainly used to apply shearing force to metal sheets of various thicknesses to perform shearing operations. There are several types of shears blades, mainly including pedal shears blades, mechanical shears blades, hydraulic shears blades and CNC shears blades.

The shearing process of the shearing machine must be able to ensure that the shearing surface of the sheared sheet can meet the requirements of linearity and parallelism, and minimize the distortion of the sheet, so that high-quality finished products can be obtained.

However, after the shearing machine has been used for a long time, the gap between the shearing blades must be adjusted accordingly. Because if the gap is not appropriate, it will affect the quality of the sheet shear and the service life of the blade. Therefore, this aspect cannot be ignored, and sufficient attention should be paid.