Description of various models of horizontal boring machines

A horizontal boring machine, the models and technical characteristics of which may vary, has the following purpose:

1. Boring holes.
2. Drilling.
3. Turning parts with a cylindrical shape.
4. Processing of product ends.
5. Milling.
6. Countersinking.
7. Thread cutting using a product designated 2620V.

And this is not a complete list of operations performed by the installation of a horizontal boring machine. Thanks to this, it is possible to use only one type of equipment to carry out a full cycle of manufacturing parts from blanks. For multi-batch production, this is a very convenient option; no additional equipment is required.

The presence of a spindle is one of the distinctive features. This part of the structure can be horizontal or vertical. 1 horizontally located element is most common.

The spindle is used to hold cutting action attachments on the 2620 horizontal boring machine, including:

• countersink;
• drill;
• incisors;
• cutters and so on.

During operation, the parameters are determined by the diameter of the spindles. The same applies to the overall dimensions of the machines, including the 2620V version.

About the design features

The design features and the workpieces used make it possible to distinguish the installation for a special, universal purpose.

Horizontal boring machines 2620 are:

1. Diamond boring machines.
2. Jig boring machines.
3. Horizontal view.

The horizontal machine has three versions:

• with two directions of movement;
• with movement in one direction;
• lack of movement.

The spindle is moving, which means that work is starting, shaping is taking place, when workpieces are processed using a horizontal boring machine 2620. Both the tool itself and the workpiece can be fed. The specific option is determined by the technology used. Processing is not complete without additional movements:

1. Using guides when moving the steady rest.
2. Connection between the rest and the rear pillar.
3. Movement of the table across or along.
4. Spindle head running vertically. 2620V designs also have this option. This makes the technical characteristics high, and relative to the 2620a option.

Most of the machines are equipped with a rotary table, with spindles of 125 mm diameter. The tables move both transversely and lengthwise. Among the important additions are the A-pillars, which have no movement.

With a 125 mm spindle diameter, the racks move without problems in one or several directions. But most often there are models of horizontal boring machines 2620 with stationary components.

Types by layout

A boring machine is typically used to machine complex parts with many holes, grooves, and shoulders. According to the layout, this equipment is classified into:

• Models with spindle diameter up to 125 mm. Using such equipment, small workpieces are usually processed. The table of such models can move along two axes. The boring head is capable of moving along the column in a vertical direction.
• Equipment with a spindle diameter of 100-200 mm. This boring machine is designed to work with medium-sized and large workpieces. With such machines, the table moves only in one direction.
• Models with spindle 125-320 mm. This equipment is used for processing very large parts. These machines have a stationary table.

Work – what principle is it based on?

Feed movements are the main operating feature of these devices. Several important elements and principles need to be described here:

• Fastening of cutting tools occurs with the participation of a faceplate support or spindle. This is where the rotation begins. The principle continues in the 2620a models.
• Placement on the surface of a movable table, using a special device.
• When working, the table moves, lengthwise or crosswise. 2620V models have the same capabilities.

The front post is involved in the movement of the spindle head, while maintaining the vertical direction. The support steady rest is combined with the stand at the rear. The movement of two parts occurs simultaneously.

When holes are bored or internal threads are cut, a translational movement is carried out by a boring spindle. When a part is processed using a 2620 horizontal boring machine, the faceplate with the caliper moves only in the radial direction.

Machine passport 2620A

This operating manual “ Passport of the machine 2620A ” contains information necessary both for the maintenance personnel of this machine and for the employee directly involved in working on this machine. This manual is an electronic version in PDF format of the original paper version. This documentation contains the Passport and Manual (instructions) for the operation of the horizontal boring machine 2620A.

CONTENT

PURPOSE UNPACKING AND TRANSPORTATION INSTALLATION AND INSTALLATION

• Foundation
• Machine installation
• Machine installation

PREPARATION FOR INITIAL START-UP PASSPORT

• Passport details
• Machine mechanics
• Machine equipment
• Machine controls
• Machine kinematics
• DESCRIPTION
• General structure of the machine
• Design of machine components
• bed
• Headstock
• Table
• Rear pillar
• Electrical equipment on the machine
• Accessories
• Optical devices
• Electrical equipment
• Machine kinematics

DESCRIPTION

• Main movement chain
• Feed chain
• Machine control
• Rotation
• Moving the moving parts of the machine
• Clamps of moving parts of the machine
• Machine locks

LUBRICATION OPERATING INSTRUCTIONS

• Measuring the movements of the moving parts of the machine
• Optical devices
• Precise stop mechanism based on coordinates
• Operating principle of precision stop mechanisms
• Setting the precision stop indicator scale
• Setting up rods with stops
• Threading

ADJUSTMENT INSTRUCTIONS

• Adjusting the spindle bearings
• Hollow spindle (models 2620 and 2620A)
• Hollow spindle (models 2622 and 2622A)
• Faceplate spindle
• Boring spindle
• Adjusting the gap in the screw pair of the radial support movement drive (for machines models 2620 and 2620A)
• Adjusting the thrust ball bearings of the propeller support in the tail section
• Adjusting the central overload fuse
• Adjustment procedure
• Adjustment of clamping devices
• Headstock Clamp
• Turntable Clamp
• Adjusting the clamps
• Adjusting the table rotation angle reference device every 90°

REPAIR INSTRUCTIONS

• Machine repair
• Special instructions about possible errors during repairs

download the passport of the horizontal boring machine 2620A in good quality from the link below.

Model 2620 Features

This CNC horizontal boring machine also has a number of modifications - 2620G, 2620V, 2620A, 2A620, 2620. When using them, it was previously possible to process parts with bodies of medium or larger sizes. Machines are not produced without retractable spindles.

It is characterized by the presence of faceplates inside, 90 mm in diameter. Parts weighing less than 3 tons are processed. This is confirmed by the passport is2a636f1.

The differences between the models are as follows:

• 2a620G – no rear pillar;
• 2А620В – rear pillar present;
• 2a620F1 – with a device that provides digital identification.

Features of coordinate boring models

Machines of this variety are used for drilling holes according to precisely specified parameters. This operation can be performed on different workpieces (conductor plates, body parts, etc.). High processing accuracy is ensured by the presence of special devices in the design of coordinate boring models: mechanical, optical and electronic. In addition, such models are equipped with rotary tables. This allows holes to be made in polar coordinate systems without having to move the part. Enterprises can use two-column or single-column jig boring machines. The dimensions of models of this type, unlike horizontal ones, are not too large.

Information about modifications 2A622F4 and 2A622

This is a new type of CNC horizontal boring machine, replacing obsolete analogues.

The devices are designed to process parts in a cantilever manner, even with large-sized housings. Their weight can reach up to 4 tons. Processing should not be a hassle, even if there are holes that require precise parameters. And when certain dimensions are saved for connecting the axes. Sometimes products with the number 2L614 are designed this way.

An obligatory part of the equipment is a rotary table and a front stand that maintains a fixed position. But the table itself moves, lengthwise or crosswise. On machines of this series it is easy to mill workpieces following an octagonal contour. Let's assume an option with a circular table feed. One of the available modifications is is2a636f1.

The design also includes a retractable spindle with a diameter of 110 millimeters. The plates are mounted in one position on the spindle headstock, at the end of the wall. This is how the horizontal boring machine model 2a614 works.

Among the main characteristics it is worth noting high rigidity and the ability to resist vibrations. Due to this, the service life of the spindle device is increased. Console technology increases efficiency. Machining the end surfaces of parts is made possible thanks to a removable faceplate. Boring large diameter holes is simplified. The 2L614 variants have this property.

The type of design determines the presence of certain additional parts:

1. CNC option.
2. Digital identification technologies.
3. Coordinate readings are in digital form, this is important for the processed part.

Boring machine 2620 technical specifications

Information about the manufacturer of horizontal boring machine 2620B

The manufacturer of horizontal boring machines, models 2620B, is the Ivanovo Heavy Machine Tool Plant , founded in 1953.

On November 21, 1958, the first stage of the Ivanovo Boring Machine Plant was put into operation. In 1958, the production of units and components for the Leningrad Machine Tool Plant named after Sverdlov was launched. Over time, the plant began producing simple horizontal boring machines according to the drawings of the same plant. Having equipped production with the necessary base, machine tool builders switched to the production of more complex products - machining centers (MC).

Machine tools produced by the Ivanovo Heavy Machine Tool Plant IZTS

2620V universal horizontal boring machine. Purpose and scope

Start of serial production of the machine in 1973. The machine is currently not in production.

The universal horizontal boring machine 2620B is designed for processing body parts made of ferrous and non-ferrous metals that have precise holes connected to each other by precise interaxial distances.

The largest weight of the workpiece (with a uniformly distributed load on the machine table) is 3000 kg.

The machines can perform: drilling, boring, countersinking, reaming holes, turning ends with a radial support, milling with end mills and cutting internal threads with a boring spindle, as well as threading with a radial support during longitudinal movement of the table.

Design features of the 2620V machine

The machine model 2620B is designed for processing body parts; it has a fixed front stand, a rotary table with longitudinal and transverse movement relative to the spindle axis, and a faceplate with a radial support. The machine can be used for drilling, countersinking, boring and reaming holes interconnected by precise coordinates, turning ends, turning grooves and protrusions with a radial support when feeding the table, as well as continuous milling with bypass along a rectilinear contour using a switch on the control panel. The machine is characterized by increased rigidity and vibration resistance of the spindle system. The retractable boring spindle with a hard nitrided surface rides on long, hardened steel guide bushings for increased rigidity, vibration resistance and long-term accuracy. The spindle is mounted on precision rolling bearings. The spindle speed is switched by a single-handle selective mechanism with a special device that automatically protects the ends of the teeth from wear during switching.

2a614 - how does the model differ?

The main purpose of the model with the designation 2a614 is case-type parts, weighing up to 2 tons. It simplifies the work with structures where there are holes of precise dimensions with connections that require compliance with the parameters between the axes. Boring machines of the 2A614 series are universal devices that provide access to the following capabilities, just like the 2L614 products:

• Machining grooves of a ring device.
• Grinding the surface at the ends.
• Work with sampling, milling.
• Reamed holes.
• Countersinking.
• Boring holes. Horizontal boring machines 2a622 also cope with this function.
• Drilling.

The manufacturer can additionally install a thread-cutting device if necessary. Even for the 2L614 design.

A mandatory addition is the clamping of tools using a mechanized method. The device is characterized by high resistance to vibration influences. The level of productivity is so high and the controls are so convenient that work requires a minimum of effort and investment. The level of accuracy will also be pleasantly surprising. But horizontal boring machines 2a622 can also boast of this.

A table with a turn can be built into any design. It moves along and across the spindle part. Characteristically, there are pillars in front that do not change position. Like the model 2L614.

The work is also carried out due to the built-in faceplate, with a radial support. The spindle and faceplate would not be able to move without the participation of an alternating current electric motor. For this, a high-speed box with a gear device is used. The gear selector mechanism also becomes an indispensable assistant.

The DC motor is responsible for organizing the feed. The breadth of the regulatory spectrum is sufficient to ensure that resolving the issue does not cause additional problems. The feed amount can be changed at any time without stopping the movement. This opportunity is also provided in models of horizontal boring machines 2m614.

Horizontal boring machines

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2L614 – about equipment characteristics

This machine also represents a group with universal products. It is used when processing body parts weighing no more than 1000 kilograms. Other features are also characteristic:

1. Equipped with a built-in rotary table. Standard movements - using longitudinal, transverse directions. They are also followed in product 2a622f4.
2. It is worth noting the presence of a front pillar, which is motionless.
3. Among the main units is an alternating current electric motor, which is responsible for organizing the rotational movement, which is carried out with the participation of the spindle and faceplate.
4. It is easier to control the process when using a gear selection mechanism with a handle. As in option 2a622f4.

The 2l614 modification machine is always supplemented not only with a built-in type of faceplate, but also with a radially moving caliper. The list of operations performed is larger thanks to the radial caliper.

When machining, you can use the so-called retractable spindle. Then milling work makes it possible not to use a radial type caliper.

The machines will benefit enterprises in the field of mechanics and tool production. In terms of accuracy, there is correspondence to the category designated H. Products 2a622F4 are designed differently.

Video: CNC horizontal boring machine.

Boring machines: purpose and areas of use

Such equipment can be used to perform such operations as:

• thread cutting, internal and external;
• drilling blind and through holes;
• countersinking;
• trimming the ends of workpieces;
• face and cylindrical milling, etc.

Most often, this equipment is used for finishing or semi-finishing. However, it happens that with its use they also produce finishing. The part body is rarely processed on such machines, but sometimes this operation is still performed. Repair of a boring machine is carried out using approximately the same technology as a turning machine. The same applies to operating features. The design of these two types of machines is similar. Like many other special types of equipment designed for processing metal and wood workpieces, a boring machine was once designed on the basis of a lathe.