A vertical drilling machine can perform a variety of countersinking and deployment tasks. Additionally, it is possible to make perfectly even holes of different diameters on the parts. At industrial enterprises using these units are engaged in thread cutting. Various milled parts are best suited for this. In turn, the spindle allows you to work with steel as well as cast iron surfaces. Additionally, you can cut non-ferrous metal blanks.
The device of the drilling machine
In the upper part, the vertical drilling machine has a main drive. Under it is a special box. With it, you can change the speed of the device. Two plunger pumps support the box . The feed system is located above the spindle. Then comes the plate on which the part for work is installed. The electric motor of the machine is located in a special cabinet. To his right is a cooling system. To control the device, there are many buttons, as well as knobs.
The cooling system is switched on by a separate tap, which is located at the top of the machine. There is a handle for moving the table. In this case, the head of the machine will also move. The power button is located on the side panel of the device. There is also a lever for spindle rotation. The speeds, in turn, are switched by a separate screw. To cut off the processing depth, a limb is provided in the mechanism. Among other things, the pump switch should be highlighted. It is located at the bottom of the drilling machine. To control the depth of cut use a cam. Automatic reverse drive is activated by a lever. A separate lever is provided for the feed mechanism. A schematic diagram of a vertical drilling machine is shown below.
How to choose a drilling machine?
First of all, you should decide on the functional part of the machine. As a rule, manufacturers make universal models for carrying out countersinking, drilling, and also deployment. The power consumption of the device must be at least 600 watts. In this case, the voltage of the machine is different. Cartridges are installed in the range from 1 to 16 mm. Spindle cones are produced in different classes and are selected separately. Its extension should be at least 170 mm in diameter. At the same time, the clearance should be approximately 80 mm. In general, the spindle is easily adjustable. The minimum distance between it and the table is on average 510 mm. At the same time, it is possible to move as far as 700 mm.
Tables in the machines are available in different sizes and depend on the model. On average, its length and width are 300 mm. In this case, the base of the device should be at least 400 by 300 mm. The average diameter of the column is 70 mm. The number of speeds in the mechanism depends on the machine block. Usually there are about 12 gears. The speed ranges range from 180 to 2500 per minute. Lastly, attention should be paid to the T-slot of the drilling machine. It should not have any defects. The average weight of the device varies around 60 kg. The length of the model should be approximately 900 mm, width - 500 mm, and height - 300 mm. In this case, it is better not to give preference to compact machines. The average price for these units is 300 thousand rubles.
Machines of the Proma trademark
In general, the machines (vertical-drilling) of the Prom company managed to prove themselves on the positive side. Separately, one can note a good speed of revolutions. Additionally, many models have the ability to choose the direction of the spindle. At the same time, doing normal drilling work is quite comfortable. With the help of the dial you can very precisely control the head of the device. The speeds switch quite smoothly. Additionally, the company "Prom" pays great attention to security. A very strong frame was made for this. Moreover, all important mechanisms are reliably hidden. Prices are low, so Prom machines are available to almost everyone.
Characteristics of the Proma 2N-125 model
This vertical drilling machine technical specifications has the following: voltage - 400 V, power consumption - 600 watts. We should also mention the cartridge. It is made of steel and is able to withstand heavy loads. Drills in it can be installed with a diameter of up to 16 mm. Spindle cone is available in MK class. Therewith, the departure indicator is 170 mm. Spindle travel is 100 mm. The distance between it and the table is 510 mm. In this case, the maximum spindle can be moved away by 710 mm.
The table is set quite sturdy. Its length and width are 255 mm. The dimensions of the base in this case are 480 by 270 mm. In turn, the diameter of the column is 73 mm. There are 12 speeds in this model. First gear allows you to make a minimum of 180 revolutions per minute. In this case, the maximum can reach 2700 rpm. The total height of the drilling machine is 1050 mm. Moreover, its mass is 59 kg. The vertical-boring machine "2n125" is most suitable for small-scale production. Its value in the market fluctuates around 280 thousand rubles.
What is the difference between the machine "Prom 2N-135"?
The vertical drilling machine "2n135" is ideally suited for cutting work. Additionally, he is able to make holes of various depths. In this case, a high rotation speed is achieved. The control unit on the machine is installed high-quality. Spindle angle can be easily adjusted. The voltage of this machine is 230 V. In this case, the parameter of power consumption is 750 watts. The maximum drill diameter is 16 mm. Spindle cone is MK class. He is able to approach the table as far as possible at a distance of 470 mm. The maximum spindle separation is 680 mm. The table in this drilling machine is set 300 to 300 mm.
The column has a diameter of 73 mm. Speeds, as in the previous model, are provided by the manufacturer 12. You can work at least 180 rpm. The maximum performance reaches 2740 rpm. The total height of this machine is 1065 mm. Departure rate is 195 mm. In turn, the spindle stroke is 80 mm. The base of the machine has a size of 485 by 275 mm. The total mass of the device is 66 kg. To summarize, we can say that this model is not suitable for mass production. This vertical drilling machine (market price) is worth about 330 thousand rubles.
Machines of the Mako company
Mako is a Russian company that has been manufacturing various equipment for a very long time. She also has on sale machines (vertical-boring). As a rule, they are intended exclusively for machining holes, as well as cutting metal parts. The work tables on the machines are quite large. Moreover, the width of the guide groove is 18 mm. Lifting the table is possible up to a height of 300 mm. The spindle cone is set to Morse class. Moving the pintles is rather complicated. The frequency range is wide. The axial force on the spindle is 15,000 N. The number of feeds for the models is 9. 9. The installation head can move up to 170 mm. The mass of the workpiece for work cannot weigh more than 600 kg. At the same time, the average weight of the machines (vertical drilling) is approximately 1,500 kg.
Overview of the machine "Mako 2S123"
The size of the working surface is 500 by 500 mm. The maximum drilling diameter is 32 mm. In this case, a hole of at least 3 mm can be made. The number of T-grooves is provided 3. The width of the guide mechanism is 20 mm. The spindle can be spaced a maximum of 750 mm from the table. Raising the base is only possible 300 mm. The distance from the spindle to the column is 250 mm.
The cone in the device has a Morse class. The movement of pins on the machine is carried out at a distance of not more than 20 mm. The torque is 400 Nm. In this case, the maximum force on the spindle is 15000 N. The number of mechanical feeds is provided for only 9. The engine power is 4 kW. The drill head can be moved up to 170 mm. Billets that weigh more than 600 kg cannot be used. The mass of the machine when assembled is equal to 1500 kg.
Models "Holzman"
Holzman is a Ukrainian brand. This company not so long ago began production of drilling machines, so it does not offer a large assortment. In general, most models have standard characteristics and do not stand out. Among the shortcomings can be noted the high cost of the machines. The spindles in the devices are installed in high quality, and there are no complaints about them. However, the control mechanism is rather uncomfortable. This is primarily due to the table of the machine. His slope is extremely small, so there is no way to work with many details. In total, the manufacturer provides only 3 auto-feed stages. Otherwise, the characteristics of the machines are ordinary.
Characteristics "Holzman V-183"
The voltage of this vertical-drilling (bench) machine is 400 V. Moreover, the rated power rating is 1 kW. The maximum machine can produce up to 1.5 kW. The drilling range is quite wide. Threading is possible up to 20 mm. The stroke rate is 160 mm. The maximum removal of the spindle from the table is possible at a distance of 350 mm. The feed of the head is carried out at 320 mm. The tilt of the table is possible a maximum of 45 degrees to the left and right. In this case, the head can also change position.
The spindle cone in this model is installed in the MK class. Change of turns is carried out by means of a reducer. At minimum speed, at least 70 rpm is performed. The maximum can accelerate to 2600 rpm. There are 12 speeds in this drilling machine. The auto-feed range is quite wide. There are 3 degrees in total, and the diameter of the rack is 120 mm. Furthermore, table size - 500 by 450 mm. The base with spline has a length of 12 mm. Cooling is provided in this model. All this allows for a long time to work without interruptions. Of the features we can highlight the presence of lighting.
Summarizing
Having considered many models, we can note the company "Prom". In general, their machines (vertical drilling) are a good choice in terms of price / quality. In addition, worthy characteristics and management comfort should be noted. Manufacturers have taken care of the safety of the workplace, and it pleases. Among other things, it is necessary to mention a wide range of machines. All this makes us prefer the Proma brand models. However, specialists have different points of view, so when choosing, you need to trust not only the characteristics.