16B16F3 Chuck-center lathe with CNC Diagrams, description, characteristics


Information about the manufacturer of the screw-cutting lathe 16B16F3

The manufacturer of the 16B16F3 universal lathe is the Srednevolzhsky Machine Tool Plant SVSZ , founded in 1876.

The production of metal-cutting machines at the Srednevolzhsky Machine Tool Plant first began at the end of January 1926. The first machine produced at the enterprise was a screw-cutting lathe with a stepped pulley, model TV-155V.

In 1934, the plant created an original screw-cutting lathe, model SP-162 , with 8 speeds and spindle revolutions per minute from 24 to 482. For the first time, an individual electric motor with a power of 1.5 kW was installed on the machine.

During the war years, the plant mastered the production of a screw-cutting lathe 1615

and soon upgraded it, bringing the spindle speed to 1000 rpm.

In 1949, the machine was put into mass production 1616

, in the sixties the models were
1B616 and 1A616
, and from the beginning of the seventies the production of the
16B16 .
Since the 90s of the last century, the SVSZ company has been producing lathes under the SAMAT .

Machine tools manufactured by the Srednevolzhsky Machine Tool Plant, SVSZ, Samara

  • 1A616
    universal screw-cutting lathe, Ø 320
  • 1A616k
    screw-cutting lathe with automatic transmission, Ø 320
  • 1A616P
    high-precision screw-cutting lathe, Ø 320
  • 1B811
    turning and backing machine, Ø 250
  • 1E811
    turning and backing machine, Ø 250
  • 1P611
    universal screw-cutting lathe, Ø 250
  • 16B16
    universal screw-cutting lathe, 320
  • 16B16A
    especially high precision screw-cutting lathe, Ø 320
  • 16B16KA
    especially high precision screw-cutting lathe with automatic transmission, Ø 320
  • 16B16P
    high-precision screw-cutting lathe, Ø 320
  • 16B16KP
    high-precision screw-cutting lathe with automatic transmission, Ø 320
  • 16B16F3
    chuck center lathe with CNC, Ø 320
  • 16B16T1
    CNC lathe, Ø 320
  • 16D16AF1
    especially high precision screw-cutting lathe with digital display, Ø 320
  • 561
    thread milling machine, Ø 400 x 700
  • 1615
    universal screw-cutting lathe, Ø 320
  • 1616
    universal screw-cutting lathe, Ø 320
  • 1716PF3
    CNC lathe, Ø 320
  • 5350A
    semi-automatic slot milling machine, Ø 150
  • Samat 400
    high-precision screw-cutting lathe, Ø 400
  • Craftsman
    table lathe, Ø 175

Machine 16B16P. Screw-cutting lathe. Manual. Electrical equipment

This operating manual for electrical equipment “Screw-cutting lathe 16B16P” 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 Manual (instructions) for operating the electrical equipment of a screw-cutting lathe model 16B16P.

CONTENT

  • General information
  • Description of work
  • Protection and blocking
  • Initial launch
  • Installation and operating instructions
  • Recommended lubricants for rolling bearings of electric motors
  • Safety instructions
  • Applications. Electrical diagram of the machine

download the operating manual for the electrical equipment of the screw-cutting lathe 16B16P in good quality from the link below.

16B16F3 Chuck-center lathe with CNC. Purpose, scope

The CNC machine 16B16F3 was designed in the early 70s on the basis of the universal machine 16B16

and replaced in production the then outdated CNC lathe 16A16F3.
In 1978, the 16B16F3 machine was replaced by a more advanced model - 16B16T1 (Samat 135NC)
.

The lathe with numerical control 16B16F3 is designed for turning in the chuck or centers of various bodies of rotation with grooves, chamfers and surfaces with a curved generatrix in one or several passes in a closed automatic cycle; used in small-scale and mass production.

The technological capabilities of the 16B16F3 for centering and chuck processing are almost equivalent. The use of only four tools installed in the front tool holder for power cutting somewhat limits the technological capabilities of the machine.

Operating principle and design features of the machine

A box-shaped bed with transverse U-shaped ribs is installed on a hollow pedestal. The caliper moves along two hardened guides of the bed, and two other guides serve to move the tailstock.

The drive of the main movement of the 16B16F3 consists of a two-speed asynchronous flange electric motor A02-52-8/4, from the shaft of which the movement is transmitted by a flat-toothed belt to the automatic gearbox (AKS) AKS209-6.3.

The spindle of the 16B16F3 receives rotation from the AKS through a flat-toothed belt drive with kinematic engagement directly or through a switch mounted in the spindle head, 17 steps of different spindle rotation speeds. Automatic switching of spindle speeds is possible in two ranges, determined by turning on the spindle directly or through search.

The machine is equipped with a threading sensor installed on the left end of the spindle head.

The drive of the longitudinal and transverse feeds is an electro-hydraulic stepper with a backlash-free ball drive screw-nut (with a split wheel to eliminate gear play). The drive of longitudinal movements has a reduction gear transmission; the backlash in the meshing is selected by bringing the gear axes closer together.

The transverse drive is similar to the longitudinal feed drive and includes an electro-hydraulic motor. Only instead of a cylindrical gear a worm pair is used.

The four-position tool holder is mounted on the transverse slide, in its front part. In the automatic operating cycle of the machine, it is controlled by the program and ensures that each of the four tools sequentially returns to their original working position. The rotation and clamping of the tool holder is carried out by a hydraulic cylinder attached to the transverse slide. Tools are installed in tool blocks, in which the base mounting surface is made in the form of a spur gear. This design makes it possible to install cutters for external machining and boring cutters into identical cutting blocks.

The nut of the ball pair of longitudinal movements of the caliper is mounted in an apron bracket attached to the carriage in front, the screw is protected by an accordion and a shield:

A double pump, driven into rotation from the first shaft of the automatic gearbox, provides centralized lubrication of the automatic transmission system, longitudinal feed drive, spindle head, rolling screw pairs and caliper guides.

The machine is equipped with a hydraulic tailstock with a manual valve spool; a pedal-controlled workpiece clamping hydraulic cylinder is available for an additional fee.

Coolant from a reservoir located on the right side of the cabinet is supplied to the quick-change cutter blocks of the tool holder in the working position.

The device with a transparent screen reliably covers the workplace from chips and coolant.

Lighting is luminescent.

By special order, the machine can be equipped with an optical device for installing cutters outside the machine, made on the basis of the BV-2011 device.

The machine is equipped with a CNC device type EM-907 , which is designed to control lathes operating with a stepper electro-hydraulic drive. Subsequently, the machine was equipped with an N22-1M .

Machine accuracy class N according to GOST 8-77.

The developer and manufacturer of the machine is the Srednevolzhsky Machine Tool Plant.

Several modifications of the machine: 16B16F3-21 was produced by the Yerevan Machine Tool Plant named after. Dzerzhinsky (Yerevan Machine Tool Production Association).

Model features

The machine has a number of features:

  • the gearbox of the device is characterized by a long service life, which is ensured through the use of a V-belt system;
  • the apron of the machine equipment is equipped with a handle with which the spindle rotation speed is controlled;
  • the machine support and longitudinal slide are capable of moving rapidly longitudinally and transversely;
  • the headstock is equipped with two gearboxes with different gear ratios;
  • the device is equipped with a specially designed tool holder, which allows the operator to quickly remove the working tool from it when cutting a part;
  • the equipment has been assigned accuracy category “N”;
  • the unit is capable of operating in several modes, which is ensured by the use of a thyristor-type electric drive;
  • There is a handle on the apron of the machine that controls the movements of the longitudinal slide and caliper at an accelerated pace.


Machine apron

All operations performed on a screw-cutting lathe are characterized by precision and high cleanliness of the thread. This is due to the fact that all the basic parts on it are of high precision, the spindle supports are equipped with high precision bearings.

All machine elements are carefully balanced. The device is characterized by stepless adjustment of cutting speed in various ranges.

The device is marked “K”, which means it contains a copy mechanism. The marking “P” indicates the high accuracy of processing products with a machine of this type.

The turning-screw-cutting electrical unit has in its design:

  • a device that blocks feeds in 2 directions;
  • longitudinal switching stops;
  • a system that protects the device from overloads.

16B16F3 General view of the lathe

Photo of a CNC lathe 16B16F3

Operator's console CNC N22-1M lathe 16B16F3

CNC correction panel N22-1M for lathe 16B16F3

Scheme of the machine 16B16P. Screw-cutting lathe. Electrical principle

Below is a sketch of the electrical circuit diagram of the 16B16P lathe

You can download a free electrical diagram of the 16B16P screw-cutting lathe in good quality from the link above. It is contained in the Electrical Manual

Technical characteristics of the machine 16B16F3

Parameter name16B16T116B16F3
Basic machine parameters
Accuracy class according to GOST 8-82PN
The largest diameter of the workpiece above the bed, mm320320
The largest diameter of the workpiece above the support, mm125160
Maximum length of the workpiece, mm750710
Cutter height, mm2525
Number of tools in the tool holder44
Spindle
Number of spindle speeds1817
Number of stages of automatically switched spindle speeds12
Spindle hole diameter, mm37
The largest diameter of the rod passing through the hole in the spindle, mm3634
Range of spindle speeds switched according to the program, rpm40..500, 160..200045..560, 140..1800
Spindle speed range, manually set, rpm40..200045..1800
Headstock spindle center according to GOST 13214-67Morse 5Morse 5
Spindle end according to GOST 12593-726K6K
Maximum torque on the spindle, Nm350
Maximum drilling diameter for steel/cast iron, mm
Submissions
Maximum longitudinal movement of the caliper, mm700700
Discretion of longitudinal/transverse movement of the caliper per step, mm0,01/ 0,0050,01/ 0,005
Maximum transverse movement of the caliper, mm210240
Range of longitudinal feed speeds, mm/min2..12001..1200
Transverse feed speed range, mm/min1..12001..600
Speed ​​of fast longitudinal/transverse strokes, m/min6/ 54,8/ 2,4
Limits of pitches of cut cylindrical threads, mm0,05..40,950,2..10
Positioning accuracy along the X axis, mm0,02
Positioning accuracy along the Z axis, mm0,035
Standard deviation from the specified movement along the X axis, mm0,0025
Standard deviation from the specified movement along the Z axis, mm0,006
Machining accuracy in a batch of 5 parts. (span tolerance) in diameter (Ø = 84 mm), mm 0,025
Machining accuracy in a batch of 5 parts. (span tolerance) along length (L = 30 mm), mm 0,032
Maximum cutting force, N6000
Tailstock
Tailstock quill stroke, mm120
Tailstock quill center according to GOST 13214-67Morse 3
CNC system parameters
CNC system designationElectronics NTs-31 NC-201(M)N22-1M
Reference systemIn absolute value In increments In increments
Number of coordinates/simultaneously controlled coordinates2/ 22/ 2
Resolution in the longitudinal direction (discreteness of the task along the Z axis), mm0,010,01
Resolution in the transverse direction (discreteness of the task along the X axis), mm0,0050,005
Feedback sensor type
Threading sensor typeIGR
Electrical equipment. Drive unit
Number of electric motors on the machine7
Main motion drive electric motor, kW (rpm)4,2/ 7,1 (720/ 1440)3,8/ 6,3 (750/ 1500)
Electric motor for longitudinal feed drive, N*m100
Cross feed drive electric motor, N*m70
Turret head electric motor, kW0,18
Quill drive electric motor, kW0,18
Electric motor of hydraulic station, kW
Lubrication station electric motor, kW0,09
Cooling pump electric motor, kW0,18
Total power of electric motors, kW
Total power consumption of the machine, kW13,0
Dimensions and weight of the machine3100 x 1390 x 18703065 x 2395 x 1860
Weight of CNC machine, kg28602500

    Bibliography:

  1. Panov F.S., Travin A.I. Work on lathes with numerical control, 1984. P. 76
  2. Acherkan N.S. Metal-cutting machines, Volume 1, 1965
  3. Batov V.P. Lathes, 1978
  4. Beletsky D.G. Handbook of a universal turner, 1987
  5. Denezhny P.M., Stiskin G.M., Thor I.E. Turning, 1972. (1k62)
  6. Denezhny P.M., Stiskin G.M., Thor I.E. Turning, 1979. (16k20)
  7. Modzelevsky A. A., Muschinkin A. A., Kedrov S. S., Sobol A. M., Zavgorodniy Yu. P., Lathes, 1973
  8. Pikus M.Yu. A mechanic's guide to machine repair, 1987
  9. Skhirtladze A.G., Novikov V.Yu. Technological equipment for machine-building industries, 1980
  10. Tepinkichiev V.K. Metal cutting machines, 1973
  11. Chernov N.N. Metal cutting machines, 1988

Related Links. Additional Information

  • Classification and main characteristics of turning
  • Selecting the right metalworking machine
  • Graphic signs for lathes
  • Methodology for checking and testing screw-cutting lathes for accuracy
  • Manufacturers of lathes
  • Manufacturers of metal-cutting machines
  • Directory of lathes
  • Generations of CNC systems. Terms and concepts of CNC systems
  • Russian manufacturers of modern CNC systems
  • Review of Russian-made CNC systems
  • Recommendations for choosing CNC devices
  • Problems with modernized CNC machines: tips and tricks from professionals
  • Requirements for ensuring stability and safety of machine control systems

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Description

This machine is a fairly deep modification of the device from the 16b16 line. The period of the most active development and production of such machines fell in the 70s of the twentieth century. The main difference between the 16b16kp machine and its counterparts was the automated gearbox. This factor significantly increased the convenience of the device and its operating efficiency.

The machine has other important features that set it apart from other similar mechanisms:

  • The working equipment belongs to the “N” accuracy class.
  • The machine has a fairly ergonomic shape and relatively small dimensions.
  • The tool holder of the device is designed in such a way that while creating a thread, the operator can quickly remove the cutting tool from the workpiece.
  • In the front headstock of the machine there are two gears with different gear ratios (1:4 and 1:16).
  • The longitudinal slide moves in any direction in a forced mode.
  • After processing on this machine, the workpieces have excellent surface cleanliness. This result was achieved thanks to the installation of bearings with high precision characteristics and due to the high-quality assembly of other working components of the machine. In addition, the design of the device allows the operator to adjust the speed of cutting parts.
  • The service life of the feed box is achieved through the use of a special kinematic scheme. At high processing speeds, information from the working surfaces is transmitted to the feed box using a V-belt system, which has a positive effect on the operating life of the device.
  • The operator can quickly select the required processing mode for the part thanks to the presence of a special electric drive.
  • The operator controls the intensity of spindle rotation with a handle on the apron of the machine.

Device markings “K” and “P” indicate the presence of a copier and an increased level of accuracy, respectively. In total, there are about twenty different modifications of machines from this line. Unlike most other models, this machine is designed for more filigree turning, so it is not recommended to be used for “rough work”.

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