Tempo di lettura stimato: 10 minuto

1. Precauzioni della lama di taglio

I modelli di lama della cesoia idraulica possono essere suddivisi in cesoia idraulica a trave oscillante e cesoia idraulica a ghigliottina. Essendo una parte molto importante delle macchine per la cesoiatura e la forgiatura, la lama di taglio è ampiamente utilizzata in vari campi. La superficie di taglio può ottenere una buona rettilineità e parallelismo per garantire l'alta qualità del pezzo.

First of all, when using the hydraulic shear blade, it can not cut the laminated steel plate material. There is no need to trim the edge of the raw steel plate material. And there is no need to cut the narrow plate material that is not tight.

Not only that, the cutting edge of the shear blade should keep sharp. And if it becomes dull or cracked, we must replace or sharpen it in time. The gap between the cutters of the shearing machine is also very important.

And it is best to adjust it according to the thickness of the sheet to keep it within the allowable range. When the hydraulic shearing machine is working, the pressing device should firmly press the sheet. And it can not cut under the state of not being tight, so as to avoid accidents.

Due to the use of time and blunt mouth, the blade of the shearing machine becomes ground. And we should take out the shear blade before the blade is ground. Slitting machine blades are mainly used for sheet metal and strip slitting production lines. Using stable high-speed cutting tool steel SKD, SKH, tungsten steel, and other materials.

After a complete set of vacuum heat treatment processes, uniform hardness, precision processing. The slitting machine blade is the most important part of the slitting tool holder. And its processing precision is even more demanding. The round blade forms a round shape. Generally, the round blade is used in mechanical equipment, mainly for cutting, trimming, and other processing functions.

Round blades usually have a middle hole, the purpose is to make it fixed on the mechanical equipment. So as to achieve the cutting function. The improper selection of the slitting machine blade will easily shorten the service life of the slitting blade and fail to meet the requirements of the slitting index. The slitting material will produce burrs and produce a large amount of slitting powder.

2. Disassembly Steps of Hydraulic Shear Blade

• Avviare la cesoia idraulica, regolare l'angolo di taglio a 1, 0°. E regolare la distanza della lama al valore massimo di 0,48 mm.

• Dopo che il portautensili della cesoia idraulica corre su e giù per diversi giri. Spegnere la macchina utensile e scollegare l'alimentazione principale della cesoia idraulica.

• Remove the protective fence of the hydraulic shearing machine, the pressing cylinder. (Note that there is hydraulic oil overflow) and the knife seat cover. Hydraulic Shear Blade

• First remove the lower hydraulic shear blade : loosen all the mounting screws of the lower blade. And use a long wooden square to firmly 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 shearing machine. Hydraulic Shear Blade

• Smontare la lama della cesoia idraulica superiore: allentare tutte le viti di fissaggio della lama superiore. E inserire due quadrati di legno adatti tra il banco da lavoro e la lama superiore. Premere saldamente la lama superiore e rimuovere le viti sulla lama superiore. Quindi allentare lentamente il tampone nella squadra di legno e contemporaneamente estrarre la lama superiore dal lato della cesoia idraulica.

3. Installation Steps of Hydraulic Shear Blade

The order of installing the hydraulic shear blades is exactly the opposite of the order of removing the blades. When installing the blade, the sharpened blade will be sharper. So the operator needs to be very careful, and it is best to wear gloves to operate. Hydraulic Shear Blade

First, remove the front worktable, front support arm, front shield, and lower backing plate of the shearing machine. We should noted here that since the shear blades are heavier and sharper, you should wear gloves when operating.

First, turn off the oil pump motor, loosen and remove the shear blade installation screw M12*45. Leaving one screw at each end, and then screw on the blade with two M12*45 screws from the back of the shear, using your hand grasp the two M12 screws, remove the one reserved at both ends, and gently remove the blade.

The difference with the CNC shear blade is that before removing the shear blade, first drop the slider to the bottom dead center. At the top dead center, use a wooden board to pad between the workbench and the upper blade, turn off the oil pump motor, loosen and remove all the mounting screws of the upper blade, and gently remove the blade.

• Installazione della lama di taglio superiore: installare prima la lama, utilizzare viti M12*40 per avvitare la lama superiore, le viti ad entrambe le estremità non sono temporaneamente installate, utilizzare un bastoncino di legno per tenere la lama superiore, in modo che la lama superiore di la lama superiore è con il cursore Dopo che la superficie di contatto della lama superiore è completamente fissata, serrare a turno le viti M12*40 installate, far cadere il cursore al punto morto inferiore, spegnere il motore della pompa dell'olio e quindi installare l'M12 *40 viti alle estremità sinistra e destra della lama superiore e serrare le viti della lama la coppia di serraggio è 35 N/M.

• Installazione della lama di taglio inferiore: avviare prima la pompa dell'olio, sollevare il cursore fino al punto morto superiore, spegnere la pompa dell'olio, installare la lama inferiore, avvitare la vite a esagono incassato M12*45 (per ora, non serrarla troppo stretto). Premere la lama inferiore con un'asta di legno, far aderire completamente la superficie di giunzione della lama inferiore e della lama inferiore sul piano di lavoro e serrare a turno le viti M12*45 secondo necessità. In questo modo, l'intero processo di installazione della lama di taglio è terminato.

• After installation, the upper and lower blades of the hydraulic shearing machine need to adjust the gap to ensure that the blade gap is accurate and consistent. Hydraulic Shear Blade

• Finally, install the cover plate of the cutter holder of the hydraulic shearing machine, the pressing cylinder and the guard rail in sequence. Hydraulic Shear Blade

4. Grinding Method of Hydraulic Shear Blade

Per cesoia idraulica, la lama deve essere rifilata dopo un periodo di utilizzo, in modo da migliorare l'efficienza del lavoro. Ci sono determinati requisiti per il metodo di rettifica della lama. Ecco un'analisi da più punti:

• Start grinding from the plane of the blade to ensure that there is no dullness, and then grinding the side surface, paying attention to the parallelism. Hydraulic Shear Blade

• Se si scopre che la lama da rettificare è inclinata, è possibile regolare la pressione di molatura e applicare forza sul lato più spesso.

• Prestare attenzione a controllare frequentemente la precisione del piatto di macinazione e calibrare il piatto.

• Durante il processo di rettifica, se la temperatura del pezzo supera i 40-50°C, sostare per un periodo di tempo e attendere che si raffreddi prima di continuare, poiché il calore influirà sulla precisione della lama. La lama delle cesoie idrauliche può mantenere il suo buono dopo la molatura. Prestazioni di base, taglio del pezzo con maggiore forza, per garantire un processo di taglio regolare.

• After the final grinding, we should coat the blades of the hydraulic shearing machine with a layer of anti-rust fluid to avoid rust. Hydraulic Shear Blade

5. Adjustment of Hydraulic Shear Blade Gap

La regolazione della distanza tra le lame è un fattore importante che influisce sulla qualità di taglio delle lame della cesoia e prolunga la durata delle lame.

Nell'operazione di regolazione della fessura del tagliente della lama della cesoia, la funzione della valvola a sfera della cesoia è quella di misurare l'uniformità della fessura del tagliente tra le lame superiore ed inferiore della lama della cesoia.

The specific method is as follows. With a single stroke, when the upper tool post of the shearing machine descends to the bottom dead center. Quickly turn the ball valve to close the oil circuit and make the upper tool post stop at the bottom dead center.

When adjusting the gap, temporarily loosen the locking screw, then turn the handle to the required scale value. And then tighten the screw. Then continue to open and close the ball valve slightly to make the upper tool post rise step by step over the full stroke. At this time, the uniformity of the blade gap should measure step by step.

The adjustment of the shearing gap of the shear blade should be determined according to the thickness of the sheet, generally about 1/20 of the thickness of the sheet. After the adjustment of the cutting edge gap of the shear blade completed, try cutting one from the thin plate to avoid damage to the blade.

A hydraulic shear blade, also known as a hydraulic shear cutter or hydraulic shear knife, is a cutting tool used in hydraulic shearing machines. These machines are used in metal fabrication and manufacturing processes to cut various types of sheet metal, plates, and other materials. The hydraulic shear blade plays a crucial role in this cutting process.

Here are some key points about hydraulic shear blades:

Cutting Mechanism: Hydraulic shearing machines use hydraulic force to drive the shearing blade or knife through the material being cut. The hydraulic system provides the power needed to make clean and precise cuts in the metal.

Blade Design: Hydraulic shear blades come in various shapes and sizes, depending on the specific cutting requirements. The blades are typically made of high-quality tool steel or other durable materials to withstand the cutting forces and maintain sharpness.

Blade Edge: The blade edge of a hydraulic shear blade is carefully designed to ensure a clean and straight cut. It should be sharp and properly maintained to prevent material deformation, burrs, or rough edges on the cut pieces.

Blade Maintenance: Regular maintenance and sharpening of the hydraulic shear blade are essential to ensure optimal cutting performance and the longevity of the blade. Dull or damaged blades can lead to poor-quality cuts and increased wear on the machine.

Blade Replacement: Over time, hydraulic shear blades can wear out due to the abrasive nature of cutting materials like metal. When a blade becomes excessively worn or damaged, it needs to be replaced to maintain the efficiency and precision of the shearing machine.

Cutting Capacity: The size and thickness of the material that a hydraulic shear blade can cut depend on the capacity of the shearing machine. Hydraulic shears come in various sizes and configurations to handle a wide range of materials, from thin sheets to thick plates.

Safety: Operating hydraulic shearing machines requires careful attention to safety procedures, including the use of protective equipment and adherence to machine-specific safety guidelines. Hydraulic shears are powerful machines, and improper use can lead to accidents.

In summary, a hydraulic shear blade is a crucial component of hydraulic shearing machines used for cutting sheet metal and other materials. These blades are designed for precision cutting, and their maintenance and proper operation are essential for achieving high-quality and accurate cuts in various industrial applications.