Vertical tool for drills

Obtaining a quality hole with a minimum amount of burrs and without deviation from a given direction largely depends on the instrument itself, but not only. Manual electric drills require special physical handling skills from the user, which allow to strictly center the tool and, if necessary, change its direction in accordance with the current task. To facilitate the process of vertical drilling a special tool for the drill is designed, which fixes the device rigidly and changes its position only in the specified range.

Construction of the device

Externally, such devices are racks, composed of several parts with screws. The lower part serves as a support. This is a metal platform that can stably hold the top structure and drill. In the support are provided screws, with the help of which the rack is fixed to the desktop. A cylindrical rod is attached to the supporting platform - a straight post that is perpendicular to the table. On top of the bar has a snap to fix the movable bracket. Its clamping flanges allow secure attachment of the tool. Also, the drill attachment for vertical drilling is provided with a drive handle, due to which the lifting arm is lowered and lowered. And as an add-on, such racks can be completed with drilling depth limiters and vice.

Rack types

To some extent, such devices can be considered as a bed. That is, the drill passes from the category of the hand tool to the shape of the machine. Accordingly, there may be a question of connecting to the power grid. For example, a magnetic tool of this type provides a holding force of the order of 25 kN. Such models are good in that, together with the guarantee of reliable fastening, the formation of backlashes is eliminated when the tool moves along the rails of the rack. A separate group includes a turning device for a drill, which even more resembles a classic drilling machine. In this case, a two-sided grip is organized by the vice. On one side the drill itself is fixed, and on the other side - the workpiece. In addition to drilling, the lathe vice allows the grinding of the part. To do this, the nozzle is initially mated to the workpiece, and during the torsion process, the master with the abrasive can adjust the individual faces of the workpiece.

Basic characteristics of the device

There are two main parameters by which the drill stand is selected: the diameter of the fixing flange and the working length at which the tool will move. The diameter determines the dimensions of the drill length, which can be clamped on the rack. The standard range is 45-65 mm, although there are also specialized flanges, and adapters, allowing to expand this corridor. Most often, the fastening hardware is calculated to work with a specific tool of a certain brand. The working length, in turn, determines the course by which the movement will be carried out. If the tool for the drill has a large range of movement, this will make it possible to drill large-format billets. In fact, this value indicates the extreme levels of hole depth. The standard course varies from 20 to 30 cm. But again there are professional stands that provide the possibility of movement along the length of 50 cm.

Manufacturers and prices

The most functional and reliable stands are supplied by Bosch, STAYER and Profi. Such equipment is characterized by high-quality construction materials, high performance parameters and the ability to work with a wide range of drill models. But the cost of such devices is rather large - on average, the prices are 3-4 thousand rubles. In the assortments of Russian manufacturers "Encore", "Caliber" and "Foreman" you can find a more affordable device for a drill in the cost of 1-1.5 thousand. Reduction of the price tag has almost no effect on working parameters, but the quality of metal and components will be lower.

How in the house to make a vertical rack?

As components it is recommended to use components of old machines, welding equipment and building installation profiles. First of all, a functional part is made with runners, along which the drill will move. For this, furniture accessories can also be used. Further, a platform is formed on which a tool for vertical drilling with a drill will stand. With your hands this part can be made from a piece of pipe, on which the base with runners will stand. You can also fix the rails on a wooden board, which is then screwed to the pipe with special hardware or clamped.

The tube itself is desirable to be attached to the assembly table for eternity, since the dismountable construction will be unreliable. Fixation can be carried out by screws or by welding to a thick metal plate. Instead of a guide lever, homemade drill tools usually have an upstanding push-up handle that directly feeds the platform with a fixed drill.

Rack operation

The tool is positioned so that the nozzle is directed down perpendicular to the table. For the implementation of oblique holes such devices are not oriented. Then the drill is connected to the network, and a workpiece is placed on the work site. The part should be positioned so that the point with the future hole is strictly opposite the drill bit. Next, the tool is tuned to the appropriate operating mode by adjusting the torque or speed. To ensure that the tool does not transmit excess vibrations, it is desirable to ensure the maximum possible stability of the table on which the rig is installed before starting work. During the drilling process, the operator must carefully guide the tool to a previously planned point in a single tempo. The process can only be terminated if the drill is removed from the workpiece.

Conclusion

As already mentioned, the addition of drill struts and other guiding devices makes a tool out of the tool. In this sense, it must be taken into account that a complete frame is characterized by a reliable interface between the functional and bearing parts. A vertical tool for the drill is fully controlled by the operator and in itself does not guarantee stability and accuracy of drilling. It only makes it possible to minimize the same vibrations and eliminate errors that are allowed in manual work. Especially important is the control of self-made racks, in the construction of which it is difficult to exclude the formation of large backlashes and gaps affecting the accuracy of the drill feed.