Scissors on the screwdriver

Metal disk scissors are a technical device intended for cutting thin-walled sheet metal. Working elements, in this case, protruding the details. They are self-propelled discs made of high-strength material, sharpened on the edge. The process of cutting material using this device occurs due to linear and proliferation of the sheet. Device allows you to produce smooth cut without deformation of the workpiece.

There are disk scissors for metal operating from the drive of the screwdriver. They are a replaceable nozzle, expanding the functionality of the power tool.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors on the screwdriver

Peculiarities

This console for the screwdriver allows the cutting metal cutlery without damaging it. The performance of the same action with the help of the Bulgarian has a negative effect on the metal blank. At the time of the abrasive disk through the metal, its edges are subjected to friction in the region of propyl, which creates conditions for increasing the temperature indicators to critical marks. Material overheating occurs and its composite structure is disturbed. If it was covered with galvanized layer, he loses its properties and metal begins to easily respond to aggressive environmental impact – oxidize, rust.

In addition, the abrasive way of sawing causes the occurrence of burrs at the edges of. To remove them, additional grinding is performed, which leads to time consumption, deterioration of the quality of the cutting line, negative effects of metal temperature and increased wear of the power tool and its rotating parts.

Disk scissors make it possible to perform metal cutting, eliminating the above-described negative factors. This opens the ability to vary the lines – to produce curvilinear saw.

The degree of deviation from a straight line is determined by the size of the cutting discs and the design features of the concrete model of scissors.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors on the screwdriver

Device

This nozzle works on the principle of driving force through a gear system. The efficiency of the removal supplement increases by combining the efficiency of the reservoir of the screwdriver with the same indicator of the gearbox itself. The effort transmitted to the circular knives doubles, which is a key factor that provides cutting.

Scissors-nozzles are divided into two types:

  • dual discovers;
  • multi-disc.

The photo shows the scheme of the operation of two-way scissors, however, the principle of the arrangement of knife disks may vary. In some cases, one of the knives is located under the tilt, both knives are tilted in another, and in the third they are installed directly relative to each other. The presence or absence of an inclination angle is determined by the target assignment to cutting. The corner depends on how the res, as well as the permissible parameters of the metal thickness will be carried out.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors operating from the drive of the screwdriver are equipped with a pulley, which is clamped into the cartridge of the power tool. Pulley rotates, transmitting mechanical force on the gearbox, located inside the housing of the nozzle. The effort makes the moving cutting disk rotate.

From the main part of the case, a special mount retaining the second disk. It can be set as a movable or stationary element. Construction of fastening assumes the presence of a gap adjustment function between discs.

The clearance is determined by the thickness of the metal sheet, which will be subject to cutting.

Laying the size of the gap is carried out by tightening the bolt located on the connection of the movable part of the attachment with the housing of the nozzle.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors on the screwdriver

Metallic focus departs from the case. It is intended to ensure that the nozzle is fixed in a fixed position. His absence will lead to the radial rotation of the entire mechanism. To exclude this effect, emphasis is attached to the bottom of the screwdriver handle – just above the battery.

During the rotation of the reducer of the screwdriver, the nozzle will begin to make the corresponding circular motion. This movement is borne by the fact that the stopper rests on the power tool handle. After that, the rotational force is transmitted to the gear mechanism of the nozzle. In order for the emphasis that stopped and fits tightly to the handle, it provides a special hook with the possibility of changing positions in space.

Device of this device is very simple. It does not have complex mechanical blocks that would require the availability of special knowledge regarding methods of operation.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors on the screwdriver

How to choose

The quality of the work of the nozzle and its durability depend on the manufacturer and the material from which it is performed. On the Russian “iron” market, it is possible to meet the names marked by the data of the domestic manufacturer. However, most of these nozzles or their details are made in China. That the device is going on the territory of the Russian Federation does not guarantee its quality.

For Chinese models are characterized by the following signs:

  • Low quality material;
  • bad assembly;
  • Low price.

The main characteristic of this nozzle, which determines the efficiency of its operation is the alloy from which the cutting elements are made – knives. If they are made of steel with low carbon content, it will lead to a constant bunk of knives, which will reduce the productivity of the instrument and the quality of the cut. Such discs require regular sharpening.

The worst version of the development of events can be the appearance of chips on the cutting edge of the disks.

Scissors on the screwdriver

Scissors on the screwdriver

Important value is the material from which the nozzle housing is made. In the process of working on all parts of the hull turns out to be high power loads. This is due to the presence of reducer mechanisms embedded in the system. Through the gearbox on small revolutions is transferred a huge torque. Soft case material may not withstand the load, which will entail the occurrence of destructive damage. The result of the current situation can be a complete failure of this adaptation.

When choosing disc scissors, it is important to pay attention to the quality of the assembly and the state of the nodes of rotation of the mechanism. Lufts, cracks, chips and other defects are unacceptable. The presence of a sufficient amount of lubricant applied to the moving elements of the nozzle is checked.

In the absence of good lubrication, you should disassemble the device, remove the signs of poor-quality lubricant and apply a new. It is advisable to use lubricant that is resistant to high temperatures, since during operation the device body and its other parts are heated.

Scissors on the screwdriver

Scissors on the screwdriver

Scissors on the screwdriver

How to use

Nozzle-scissors are easy to operate. In order for it to take advantage of, you need to insert the shock of the nozzle in the cartridge of the screwdriver (it is advisable to use the screwdriver, as it works on small turns). Provide a high rod tightening in the cartridge.

  • Install the focus, securing its end on the screwdriver handle, with the help of moving fasteners.
  • Adjust the gap between cutting discs.

The adjustment is made by weakening the adjusting bolt, the metal sample application to the disks, the installation of the knives in the desired position, reverse tightening bolt.

The distance between the circular knives should be less than the thickness of the metal sheet by 0.3-0.5 mm.

If it is more, the scissors will be held on the metal, without providing impact on it, and if less, the process of cutting can be significantly complicated.

Scissors on the screwdriver

Scissors on the screwdriver

Check the operation of the device by trial startup. For loyalty of verification results, you can cut the metal wire of the corresponding diameter. During the cut, there should be no signs of beating, hotels and other factors that can reduce the accuracy and quality of the cut.

Start cut from the edge of the sheet. Keep the device slowly, without sharp movements. At the same time, the billet should be firmly fixed so that the vibration and arbitrary shifts will not break the cut line.

When performing work with disk scissors, it is important to comply with all safety measures. In their list, you can note the main:

  • protect organs vision using specialized glasses;
  • use gloves to protect palms from acute metal;
  • have specialized clothing and shoes resistant to destructive effects;
  • Avoid contacting gloves and parts of clothing with rotating parts of scissors and a screwdriver;
  • Do not use the mode of non-stop power tools.

About how disk scissors are built in a surnupture, shown in the following video

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