2118 Vertical Drilling Machine Manufacturer Information

The manufacturer of the vertical drilling machine 2118 is the Novocherkassk Machine-Tool Plant, founded in 1938.

Since January 1957, the plant has specialized in the production of only turret lathes. The plant produced turret lathes: 1N318, 1N325, 1G325, 1D325, 1E325, 1325F3.

2118 single-spindle vertical drilling machine. Purpose and scope

Versatile vertical drilling machine model 2118 with a nominal drilling diameter of 18 mm is intended for the following operations: drilling, reaming, tapping and trimming with knives.

The machine is designed to work in the main production shops, as well as in the conditions of single and small-scale production in instrumental, experimental, mechanical repair and tool shops with individual production.

The main technical characteristics of the drilling table machine 2118

Manufacturer - Novocherkassk Machine-Tool Plant.

The main dimensions of the machine correspond to GOST 1227-79.

• Drilling capacity: Ø 18 mm
• Maximum drilling depth: 150 mm
• The highest height of the workpiece installed on the work table: 500 mm
• Spindle speed limits per minute - (6 steps) 300..3100 rpm
• Spindle end - Morse 2
• Electric motor power: 1,0 kWh
• Machine weight: 450 Kg

Kinematic diagram of the drilling machine 2118

Drilling machine design 2118

By its design, the drilling machine is very easy to operate. In order to set the selected drilling speed, it is necessary to move the V-belt to the corresponding pulley step.

In order to transfer the belt from one stage of the pulley to another, it is necessary to unscrew the special handle on the bracket and, by turning the screw to the left, move the bracket together with the electric motor towards you. After that, it is necessary to rearrange the belt, and then (to tension the belt) by turning the screw to the right, move the bracket with the electric motor away from you.

Automatic feeding is carried out through a feed box, the roller of the latter is driven into rotation from a spindle flash drive through a small gearbox, which is connected to the flash drive belt.

The automatic feed rate is 0.2 mm per spindle revolution. Feeding over 0.2 mm. can only be done manually, for which a special overtaking mechanism is arranged in the feed box.

In order to work with a feed of less than 0.2 mm (when drilling in steel up to Ø 6 mm), the automatic feed must be turned off by pulling the handle counterclockwise until it stops and screwing the stop screw on the side of the disc.

In order to drill to a predetermined depth during automatic feed, there is a movable stop bar on the switching sleeve disk, and a special scale in millimeters is applied on the vernier ring around the circumference, according to which the specified depth is counted. The plank is installed according to the required drilling depth.

The start and stop of the machine is carried out with the help of an electric motor, and the switching on and off of the latter is carried out from the drum switch.

Automatic feed 0.2 mm. can be used for carbon steel, for drilling diameters from Ø 6 mm to 18 mm. For cast iron, for drilling diameters from 3 mm. up to 18 mm.

When working with automatic feeding, the handle must be set to the middle position.

The ease of turning off the automatic feed is carried out by selecting the rollers in the feed box: Ø 12.3..12.7.

Cooling drilling machine 2118

To cool the tool during drilling, a special electric pump of the P22-A type is mounted on the machine, which can be switched on using a separate packet switch.

A special reservoir is provided for the coolant in the machine cabinet.

Drill Machine Lubrication 2118

The machine is lubricated daily before starting work in the following places:

The axis of the feed gear is through two grease fittings on the feed box housing.

With automatic feed, the feed roller neck of the feed box must be generously lubricated - through the circular chamfer in the feed box bushing.

All other mechanisms are lubricated periodically by filling grease through holes specially provided for this purpose.

Lenix bearing is lubricated periodically by unscrewing the roller from the bar ( left hand thread). The feed roller bearings are lubricated through the hole in the Z63 gear by unscrewing the locking screw.

It is necessary to lubricate the drive gears of the feed box daily.

The gearbox rack and pinion is lubricated by supplying oil to the quill teeth.

The axle of the worm gear in the table lift mechanism is lubricated through an oiler at the end of the axle.

Electrical equipment and wiring diagram of the drilling machine 2118

Electrical diagram drilling machine 2118

2118 single-spindle vertical drilling machine. Video clip.

Machine Specifications 2118

Parameter name	2н118	2118
The main parameters of the machine
The largest diameter of drilling, mm	18	18
The smallest and greatest distance from spindle nose to table	0...650	0...650
Distance from the vertical spindle axis to the rack guides (overhang), mm	200	200
Desktop
Dimensions (edit) work surface table (length x width), mm	360 x 320	350 x 340
Number of T-slots Dimensions of T-slots	3	3
The greatest vertical movement of the table (Z-axis), mm	350	445
Moving the table for one turn of the handle, mm	2,4
Spindle
The greatest movement of the spindle head, mm	300	150
Moving the spindle head by one turn of the handwheel, mm	4,4
Spindle sleeve stroke, mm	150
Movement of the spindle by one division of the limb, mm	1
Movement of the spindle for one turn of the handwheel-handle, mm	110
Spindle speed, rpm	180 - 2800	300, 450, 735, 1200, 1980, 3100
Number of spindle speeds	9	6
The greatest allowable torque, kg * cm	880
Spindle taper	Morse 2	Morse 2
Machine mechanics
Number of stages of working table feeds	6	1
Limits of vertical working feeds per spindle revolution, mm / rev	0,1 - 0,56	0,2
The greatest allowable feed force, kgf	560
Spindle braking	there is
Drive unit
Main drive motor Type	AOL2-22-4S2	A-41/6
Electric motor of the drive of the main movement Number of revolutions per minute, rpm	1420	930
Main drive electric motor Power, kW	1,5	1,0
Electric Coolant Pump Type	PA-22	PA-22-A
Dimensions and weight of the machine
Machine dimensions (length width height), mm	870 x 590 x 2080	875 x 550 x 2005
Machine weight, kg	450	450

Appointment of drilling machines

Drilling machines are designed for drilling blind and through holes in solid material, reaming, countersinking, reaming, cutting internal threads, cutting discs from sheet material... To perform such operations, drills, countersinks, reamers, taps and other tools are used. The shaping movements when machining holes on drilling machines are the main rotational movement of the tool and the translational movement of the tool feed along its axis.

The main parameter of the machine is the largest conventional hole diameter (for steel). In addition, the machine is characterized by overhang and the greatest spindle travel, speed and other indicators.

Drilling machine classification

Drilling machines are divided into the following types:

• Vertical drilling machines;
• Single-spindle semiautomatic devices;
• Multi-spindle semiautomatic devices;
• Jig boring machines;
• Radial drilling machines;
• Horizontal boring;
• Diamond boring;
• Horizontal drilling machines;
• Various drill bits.

Machine models are designated by letters and numbers. The first number indicates to which group the machine belongs, the second - to which type, the third and fourth numbers characterize the size of the machine or workpiece to be processed. The letter after the first digit means that this model machine tool modernized (improved). If the letter is at the end, it means that a different machine was made on the basis of the main model.

For example, the machine model 2H118 is a vertical drilling machine, the maximum diameter of the machined hole is 18mm, it is improved in comparison with the drilling machines of models 2118 and 2A118. The machine model 2N118A is also vertical drilling, the diameter of the hole to be machined is 18mm, but it is automated and designed to work in small-scale and batch production conditions.

Depending on the field of application, a distinction is made between universal and special drilling machines. Specialized drilling machines for large-scale and mass production, which are created on the basis of universal machines by equipping them with multi-spindle drilling and threading heads and automating the work cycle, are also widely used.

Of all the drilling machines, the following main types of universal machines can be distinguished: single and multi-spindle vertical drilling; radial drilling; horizontal drilling for deep drilling.

Manual drilling machines

Vertical drilling machine.

Rice. 1. Vertical drilling machine:

1 - column (frame); 2 - electric motor; 3 - drilling head; 4 - handles for switching gearboxes of speeds and feeds; 5 - manual feed wheel; 6 - limb for controlling the depth of processing; 7 - spindle; 8 - hose for coolant supply; 9 - table; 10 - table lifting handle; 11 - foundation slab; 12 - electrical equipment cabinet.

The main units are located on the bed 1 of the machine. The bed has vertical guides along which the table 9 and the drilling head 3, the bearing spindle 7 and the electric motor 2 move. The workpiece or device is installed on the machine table 9, and the alignment of the workpiece hole and the spindle is achieved by moving the workpiece.

The gearboxes of speeds and feeds are controlled by handles 4, manual feed - by the steering wheel 5. The depth of processing is controlled by the dial 6. The counterweight is placed in a niche, the electrical equipment is placed in a separate cabinet 12. The base plate 11 serves as a support for the machine. In medium and heavy machines, its upper plane is used for setting workpieces. The coolant is supplied by an electric pump through a hose 8. The drill head units are lubricated with a pump, the rest of the units are lubricated manually.

Drilling head 3 is an iron casting, in which a gearbox, feed mechanisms and a spindle are mounted. The gearbox contains two- and three-gear blocks of gear wheels, by switching which, using one of the handles 4, the spindle receives various angular velocities... The spindle speed, as a rule, changes in steps, which is provided by a gearbox and a two-speed electric motor 2.

Unlike vertical drilling in a radial drilling machine, the axes of the workpiece and spindle holes are aligned by moving the spindle relative to the stationary workpiece in the radial and circular directions (in polar coordinates). By design, radial drilling machines are divided into general-purpose machines, portable for machining holes in large workpieces (machines transfer crane to the workpiece and process vertical, horizontal and inclined holes) and self-propelled, mounted on trolleys and fixed during processing with shoes.

CNC drilling machines

CNC vertical drilling machine.

Rice. 2. CNC vertical drilling machine:

1 - stand-alone CNC stand; 2 - cabinet of power electrical equipment; 3 - revolving head; 4 - table; 5 - stepper motor; b, 7, 8, 11 - control units; 9 - code converter; 10 - reader.

The machine is designed for drilling, countersinking, reaming, threading and light straight-line milling of parts made of steel, cast iron and non-ferrous metals in small-scale and batch production. Turret 3 with an automatic tool change and a cross table 4 allow for coordinate machining of parts such as flange caps, panels without preliminary marking and the use of conductors.

TO Category:

Drilling metal

Vertical drilling machine model 2118

You have already got acquainted with the device of the NS-12 drilling machine. On such machines, you can drill a hole with a maximum diameter of 12 mm. But in some cases, holes of a much larger diameter are needed. In this case, they drill on more powerful machines. We will now get to know one of these machines. This is a model 2118 vertical drilling machine.

It consists of a base, a column, a gearbox, a guide bracket, in which a feed mechanism and a spindle assembly are mounted, and a table. The gearbox with an electric motor is installed on the top of the column.

Metals of different hardness are processed at different speeds... The rotational speed of the drill is selected taking into account its material and diameter. Machine setup procedure different designs the required speed is different. So, on the NS-12 desktop drilling machines, the speed is changed by transferring the belt from one stage of the pulley to another. On the 2118 drilling machine, the gear levers are switched in the gearbox.

Drilling will heat up the tool and workpiece. Try rubbing your palms together quickly.

Did you feel warm? The same thing happens with the drill. But only the tool gets very hot. A red-hot drill gets blunt quickly, cuts metal poorly. To prevent this from happening, during operation, the tool is cooled with a special liquid: soap and soda water, oil emulsions. In this case, the hot drill gives off part of the heat to the liquid and cools, and the liquid heats up. Therefore, the base of the machine is made hollow and at the same time serves as a tank for collecting the coolant.

During drilling, parts are placed on a table that can be raised and lowered using a special handle. Remember! Small holes are best drilled at high speed and holes large diameter- on a small one.

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Vertical drilling machines 2118; 2135; 2150. Drilling head with various tools.

Vertical drilling machines 2118; 2135; 2150 are used for drilling holes up to 50 mm in diameter.

The first two digits show the type of machine, and the last - largest diameter drilling.

In fig. 129 shows a 2150 single-spindle vertical drilling machine and its kinematic diagram. It consists of a single-column vertical bed 1, reinforced on foundation slab 2. An electric motor 3, a gearbox and a feed box 4 are installed on the bed, with the help of which the spindle 5 receives six speeds from 46 to 475 rpm and ten feeds from 0.15 to 0.30 mm per revolution.

During drilling, parts are installed and fixed on the table 6. The feed of the drill 7 on this machine can be carried out manually by the handwheel 8 or automatically using a gearbox and a feed box. The table is raised and lowered by rotating the handle 9. The machine is switched on using the buttons located on the panel.

Drilling heads are often installed on the spindle of vertical drilling machines (Fig. 130), allowing drilling with five tools at a time, for example, drilling, tapping, reaming. Thus, a single-spindle machine with such a head can replace a five-spindle machine, but the part does not need to be rearranged.

Rice. 129. Single spindle vertical drilling machine.

Post-war explosive growth industrial production in the USSR demanded an urgent expansion of the machine tool park. To prevent the outflow of foreign currency abroad, domestic design bureaus began to develop metal-cutting equipment. First, a basic model was produced, which was tested in real conditions... After that, the mechanism was improved. Such a modified unit is the 2H118 vertical drilling machine.

Equipment classification

System adopted legend, which makes it easy to understand the labeling of the units. The difficulty in deciphering the name of the machine arises in specialized production, when the abbreviation is set by the manufacturer. In the standard case, decimal-based numbering is used.

The equipment designation includes four numbers and several letters, the latter can be located anywhere. Letters can indicate the degree of automation, accuracy class or new modification. Consider the meaning of the numbers:

1. It defines a group of machines, depending on the performed technological operation. There are nine groups in total.
2. Indicates the type of equipment, there are nine of them.
3. The last figures show the basic size of the unit.

In our case, the first number (2) denotes the drilling group. The second number (1) indicates a vertical drilling machine type. By the last digits we determine maximum size holes that the mechanism can drill. The letter (n) indicates a new modification of the base model.

Drilling equipment

It is used in any technological chain, but the main purpose is small-scale and one-off production. Such machines perform a number of operations:

• threading;
• countersinking;
• drilling;
• trimming the ends;
• deployment;
• countersinking.

After reviewing, they can be divided into three large groups depending on the operations performed:

• specialized, perform a limited number of actions;
• universal, constitute the main part;
• special, work without readjustment, according to a given cycle.

Such units can be classified according to the maximum used drill diameter:

• lightweight, drilling up to 12 mm;
• medium, receiving holes 18-50 mm;
• heavy, drilling 75 mm holes.

The main distinctive features metal-cutting equipment are the movements that the cutting tools and fixtures make. In our case, this is the rotation of the drill and the translational feed of the spindle. All basic parameters are included in the passport of the machine, which is directly included in the operating manual.

Machine 2Н118 near

In this document you will find instructions for securing the machine to the workplace. First of all, it must be located strictly horizontally in relation to the foundation. The reliability of the operation of all mechanisms depends on this. This is achieved by using special levels.

The design of the machine assumes the following types:

• desktop;
• columnar;
• radial drilling;
• deep drilling;
• multi-spindle;
• central;
• drilling and milling;
• coordinate drilling;
• radial drilling.

All of them are complex mechanisms, therefore, before starting work, maintenance personnel should carefully read the operating instructions. And during work, adhere to all recommendations.

Machine description

The machine-tool plant in the city of Molodechno began to manufacture the 2H118 vertical drilling machine. At the end of the fifties, it was reoriented to the production of drilling units. In the early sixties, the production of the basic model 2118 was launched. Based on its operational data, the designers developed the 2H118 vertical drilling machine, specifications which were improved, and all the shortcomings were taken into account.

The basis of this mechanism is a column, which is attached to the foundation with its base. It has a gearbox located in the upper part of the structure, as well as a table and a feed box in the spindle head. The design features include rigidity, strength of mechanisms and speed range cutting tool... The movement of the working head along the bed is due to the rack and pinion mechanism controlled by the steering wheel.

The part is installed on the table, in special devices, and can be moved along it to align the hole drilling with the cutting tool. The table can move along the bed. Its installation, as well as the installation of the spindle head, depends on the height of the tool and the part. The processing process can take place in manual and mechanical modes.

To understand how the 2H118 drilling machine works, we open the passport and find all the necessary information.

Download the passport (operating instructions) of the 2N118 machine

Let's select from it the main technical characteristics:

Also, you can find here kinematic diagram, which is given below, and a description of its features.

These include:

• electric reverse, which changes the direction of rotation of the head;
• 9-speed gearbox, expanding the range of rotation of the cutting tool;
• 6-stage feed box, regulating vertical movement;
• rack and pinion mechanism moving the spindle head;
• a screw pair that ensures the movement of the table.

For long-term work, you need to pay attention to fixing the 2H118 machine to the foundation. It is set with the help of a level on the wedges, after which the solution is poured under the base. When it hardens, the foundation bolts are tightened.

The electrical part of the machine cannot be bypassed. Its main components are:

• a motor that rotates the spindle;
• selenium rectifier;
• automation, consisting mainly of relays and starters;
• cooling pump.

The rectifier is used to start the brake actuator and the cutting tool is dynamically braked. In addition, the motor is protected against overload by a circuit breaker.

To avoid accidents and injuries service personnel, all equipment is properly grounded.

All of the above documents for 2H118 are included in the operation manual. It makes it possible to correctly install, start and operate the mechanism. And in the event of a breakdown, quickly identify the problem.