From 5 technical specifications. Feed box and spindle head of turning equipment

Designed for a variety of high-precision turning operations performed on centers, collets, chucks and faceplates, as well as for cutting metric, inch and modular threads.

It is used in enterprises of the instrument-making, radio engineering, tool industries and precision engineering.
Climatic design - U.4.1.
It is not built into an automatic line.
Accuracy class P.
Developer - Odessa Design Bureau of Special Machine Tools.

Designation:

1 - lathe(group number according to ENIMS classification)
6 – subgroup number (1, 2, 3, 4, 5, 6, 7, 8, 9) according to the ENIMS classification (6 - screw-cutting lathe)
B – generation of the machine (A, B, C, D, K, L, M)
0 – height of centers above the bed 135 mm
5

Letters at the end of the model designation:
G – machine with a recess in the bed
K – machine with an operating device
P - machine accuracy - (n, p, v, a, s) according to GOST 8-82 (P - increased accuracy)
F1 – machine with digital display device DRO and preset of coordinates
F2 – machine with CNC positional numerical control system
F3 – machine with contour (continuous) CNC system

Kinematic diagram

The kinematic diagram of the machine allows the following operations:

the main movement is spindle rotation;

feed movement - movement of the cutter;

rotation of the lubrication pump.

Electric motor 1, through toothed coupling 2, rotates drive pulley 3 of the variator with a wide V-belt. The belt transmits rotation to the driven pulley 4 of the variator. The rotation speed of the driven shaft of the variator is changed by axial movement of the movable disk of the driven pulley. Next, through one of two pairs of gears - 5 and 6 or 7 and 8, rotation is transmitted to the V-belt pulley 9. Switching here is carried out by the axial movement of wheel 5, which engages with wheel 6 or, as a gear half-coupling, enters the inner rim of wheel 7.

From pulley 9, V-belts transmit rotation to pulley 14, sitting on bushing IV. From here, rotation is imparted to the spindle VI directly, when the gear coupling 19 is engaged, or through a sequence consisting of gears 15, 16, 17 and 18 with a general gear ratio of 1: 8.

The feed movement is carried out directly from spindle VI or from sleeve IV. Accordingly, gear 21, sliding along shaft VII, engages either with gear 20 or 15. The latter engagement is used for thread cutting with a large pitch when enumeration is turned on and gives an eightfold increase in the thread pitch.

From shaft VII, rotation is transmitted through the snaffle gears 22, 23, 24 and the guitar gears a, b, c, d to the feedbox shafts. Feedbox mechanisms - row shift mechanism (gears 25, 26, 27, 28), main thread and feed row mechanism (gears 28, 29, 26, 30, 33, 34, 31, 32), multiplying mechanism (gears 35, 36, 37, 38, 39, 40, 41) - allow you to get 28 pitch steps (4 steps are repeated) or a number of standard thread steps with the guitar tuning unchanged.

The axial movement of the gear-half-coupling 42 turns on the rotation of the lead roller XVI (through gears 43,44,45 and coupling 47) or the lead screw 71. The half-coupling, rigidly connected to the sliding block 39-41, serves to directly connect the lead screw to the guitar. This allows you to shorten the kinematic chain when cutting threads and increase the accuracy of the cut thread. In this case, adjustment to the pitches of the cut threads is made by selecting the wheels of the guitar.

When the nut 72 is engaged, the rotation of the lead screw 71 is converted into longitudinal movement of the caliper used for cutting threads.
When turning, the rotation of the running roller XVI by the floating clutch 48 is transmitted to the worm pair 49, 50 and then to the planetary mechanism 54, 52, 53, 51 and gear 56.
The sun wheel 51 is kept from rotation by a safety clutch 55.

The gear block 57, 58 is used to switch longitudinal and transverse feed. In the first case, gear 58 meshes with wheel 59, on the same shaft with which gear 60 sits, rolling along rack 61; in the second case, the gear 57 engages with the wheel 62, which rotates the cross-feed screw 73.

Gears 64 and 65 rotate the dial for measuring the longitudinal movement of the caliper.

Gears 10, 11, 12, 13 form a planetary gear, through which, when controlling the variator, the spindle speed dial is rotated.

Gears 67 and 68 transmit rotation from 1 shaft of the variator to the vane pump of the lubrication unit.

Bearing layout

bed

The machine bed is a rigid casting with transverse U-shaped ribs in the middle part, which are separated by windows for pouring chips. On top of the frame there are two pairs of guides: the outer ones (two prisms) for the caliper and the middle ones (prism and plane) for the tailstock. A rail 1 for the longitudinal movement of the caliper is fixed under the front guide shelf.

On the left, on the upper plane of the frame, there is a headstock, and on the right, a tailstock.
On the front wall of the frame, on the left, there is a feed box on the right - block 4 with supports for the lead screw 3 and the lead roller 2.
Under the headstock in the frame there is a window for the drive belts from the variator. In the rear wall of the frame there is a window for mounting the headstock oil line.
The frame is attached to the cabinet with six screws.

Cabinet

The cabinet frame is made of angle steel and covered with thin sheet metal. The upper part of the cabinet is made in the form of a trough 6. To the left and right of it there are machined platforms for installing the frame.

In the left part of the cabinet, at the bottom, a variator 1 is installed. Next to the variator there is a lubrication unit 2 and a cooling tank 4. The coolant is drained from trough 6 into the cooling tank through a funnel 5, closed with a removable mesh. In the right section of the cabinet there is a cabinet with electrical equipment 3 The input to the electrical cabinet, as well as the grounding screw, are located on the rear wall of the cabinet, at the bottom.
The openings that provide access to the units located in the cabinet are closed with quick-release covers with spring latches.

Variable speed drive

The variator consists of the variator itself and a two-stage gearbox (range shift box).

The first (drive) shaft 2 of the variator is driven into rotation by a flanged electric motor through a gear coupling half. The second half of the coupling is made integral with shaft 2, on which a stationary (in the axial direction) disk 4 and a spring-loaded sliding disk 3 are installed, forming the variator drive pulley. From this pulley, rotation is transmitted through a wide V-belt to shaft 7 through the driven variator pulley, consisting of a fixed disk 5 and a controlled sliding disk 6.

In addition to the driven pulley, gears 8 and 9 are located on shaft 7. Gear 9 is equipped with an outer and inner ring gear and a half-coupling. Gear S, moving along the splines along shaft 7, switches the speed ranges of the variator output shaft. The drive pulley of the V-belt drive, connecting the variator to the headstock, is mounted on this shaft. To tension the transmission, the housing 11 of the variator gearbox can be rotated on the glass 10, mounted on the housing 1 of the variator. The housing 11 is rotated using the coupling nut 21, after which the housing is secured with screws to the glass 10.

The control mechanism for the variator and gearbox is located on top of the variator body. Handwheel 12 controls the movement of sliding disk 6, handle 16 serves to switch gears in the gearbox. The planetary gear 20-19-18-17 connects the handwheel 12 with the disk 13, on which a ring 14 with a dial 15 is installed. There are two spindle speed scales on the dial, one for directly turning on the spindle, the second for turning on the spindle through overdrive.

To read the scales, two pairs of indicator strokes are used, printed on a transparent shield located above the dial. When switching variator speeds, the shield moves together with handle 16. For counting, use the pair of index strokes that is currently in the upper position.

Headstock

The headstock housing contains a spindle, a buster, a drive for threads and feeds with a snaffle, and a control mechanism.
The headstock take-up pulley 8 is mounted on a bushing 11, coaxial with the spindle 4. To the left of the pulley there is a direct spindle engagement clutch 10, and to the right there are gear wheels 2, 6, 7, 11.
The machine spindle rotates in precision rolling bearings.
A double-row roller bearing and two angular contact ball bearings are installed in the front spindle support, and a radial ball bearing is installed in the rear support.
The rear spindle spore and the left support of the bushing 11 of the pulley 8 are located in the cup 9. When replacing drive belts, this cup must be removed.

Lubrication of the headstock mechanisms is centralized, from a lubrication unit.

Tailstock

The tailstock consists of a base 4 and a housing 7, in which the tailstock mechanisms are mounted
The headstock body can be moved in the transverse direction along the protrusion of the base using adjusting screws 11 and nut 10. The headstock is secured to the frame guides by handle 13 using eccentric clamps 1, 2, 5.
In the bore of the headstock body there is a quill 6 for installing a thrust center or other tools
The quill moves when the screw 12 is rotated by the handwheel 9. The amount of movement of the quill 6 is measured on the scale marked on the quill and on the dial 8. The position of the handle 13 of the eccentric clamp is adjusted on the headstock, removed from the guides, by turning the nut 3 on one side (until alignment nut planes with strip groove 2).

Guitar

The guitar connects the headstock to the feed box.
Attachment 3 is installed on the output shaft of the headstock. The intermediate axis 2 is fixed in the tilt groove. Replacement gears from the kit supplied with the machine are installed on the output shaft of the headstock, on the intermediate axis and on the receiving shaft of the feed box.

Gearbox

The feed box of the machine in combination with the guitar allows you to set the required gear ratios for cutting threads with different pitches and obtaining different longitudinal and transverse feeds.
The feed box contains the following mechanisms: main row (gears 3, 4, 1, 2, 5, 8, 6, 7); multiplying (gears 9, 10, 19, 15, 16, 17, 18); row displacements (gears 21, 22, 3, 4); switching the transmission of motion to the drive shaft or to the lead screw (coupling half 14);
direct engagement of the lead screw (coupling halves 12,14,18,20)] switching (not shown in the figure).
The main series mechanism makes it possible to obtain four gear ratios proportional to the four pitches of metric or modular threads.
By multiplying these ratios by the multiplying gear ratios (1/4, 1/2, 1, 2) and by the row shifting gear ratios (1.1 1/4), metric and modular threads can be cut while constantly tuning the guitar.
The switching mechanisms are located on the plate under the feed box cover. The shift handles are located on the front cover.

Apron

In the apron mechanism, the movement from the running roller is transmitted through a worm pair 21, 20, a planetary gear 19, 18, 17 and a number of gear wheels to the rack and pinion gear 15 (for longitudinal feed) or the caliper transverse movement screw (for transverse feed).
Switching from longitudinal to transverse feed is carried out by axial movement of the gear block 16. In the middle position of this block, the feed is turned off.
When cutting threads, the feed to the caliper is communicated from the lead screw through the nut 6-7. The locking built into the apron mechanism eliminates the possibility of simultaneous activation of nuts 6 and 7 and movement of both longitudinal and transverse feed.
To avoid jamming of the nut on the lead screw, the approach of nuts 6 and 7 is limited by an adjustable stop 8.
To protect the apron mechanisms from breaking when overloaded, lever 2 is used, the roller of which, under the action of a spring-loaded latch 4, keeps the toothed disk 5 from rotating, and with it the sun wheel 19 of the planetary gear.

Manual movement of the caliper is carried out by rotating the handwheel 11 with the block 16 in the middle position and the button 12 extended. The movement is counted along the dial 10.
When feeding mechanically, button 12 should be pushed forward to prevent rotation of handwheel 11.
The apron mechanisms are lubricated using two auxiliary gears 22, immersed in the oil bath of the apron body 1.

Caliper

The machine support is of the cross type. The lower slide 1 of the support moves in the longitudinal direction along the frame. On top, on the guides of the lower slide, there are transverse slides 3 calipers. The rotary slide 9 is attached to them. The upper carriage 10, which carries the tool holder 6, moves along the guides of the rotary slide (manually).

The tool holder is four-position, with fixation in four positions.
The rotary slide 9 is set to the required angle according to the scale marked on the transverse slide, the movement of which can be mechanical (from the apron) or manual (from the handle).
During transverse processing, the lower longitudinal slide of the support can be locked with screw 2. On the screws 5 and 7 for moving the upper carriage and transverse slide, dials 4 and 8 are located for accurately reading the amount of movement.

Electrical diagram

Voltage is supplied to the machine by turning on the input switch B1.

The M1 electric motor is started using the buttons (right) and Kn2 (left). Using the KnZ button at points 9-11, the coil of the RZ starter is turned on, which, when activated, switches to power supply at points 9-11, and at points 23-25 ​​prepares the trigger circuit for the P5 starter. Using the Kn2 button

At points 15-19, the coil of the starter P4 is turned on, which, when activated, switches to self-power at points 15-19, and at points 23-25 ​​it prepares the trigger circuit for the starter P5. Thus, when the rotation of the electric motor M1 is turned on in any direction and the switch B2 is turned on, the starter P5 is activated, switches to self-power and turns on the electric motor M2 of the cooling pump.
When the Kn1 button is acted upon, its closing contact at points 5-7 turns off the starters RZ and P4, and the opening contact of the Kn1 button at points 1-29 turns on the braking starter P6. Turning on the latter is possible only when the starters RZ and P4 are turned off, which is controlled by the opening contacts of these starters at points 29-31-33. The switched-on starter P6 short-circuits one of the windings of the electric motor M1, while a voltage of 220 V (phase-zero) is supplied to the other two through the rectifier Vp. Induction-dynamic braking of the electric motor M1 of the main movement is carried out.
After the spindle stops, the Kn1 button should be released, and the electrical circuit returns to its original state.

Protection of the electric motors of the main movement and electric cooling from short circuit currents is carried out by an automatic circuit breaker.
Protection of control and lighting circuits from short circuits produced by fuses
Protection of electric motors from long-term overloads is carried out by a thermal relay.
The values ​​of rated currents of circuit breakers, fuses and thermal relays are given in the explanation to the circuit diagram.
When installing, the machine must be reliably grounded and connected to common system grounding. For this purpose, grounding bolts are installed in the control cabinet and on the machine stand.

Information about the manufacturer of the OT-5 screw-cutting lathe

Manufacturers of the OT-5 screw-cutting lathe were Odessa Machine Tool Plant And Kirovakan Precision Machine Tools Plant Kirovokan - Vanadzor.

Currently, production of the machines has been discontinued.

OT-5 lightweight screw-cutting lathe with increased precision. Purpose, scope

Lightweight lathe OT-5 designed based on lathe 16B05P and can be used in mobile repair shops.

The OT-5 lathe is designed to perform various high-precision turning operations performed on centers, collets, chucks and faceplates, as well as for cutting metric, inch and modular threads.

The machine ensures the quality of the processed surface and the accuracy of work (accuracy of dimensions, geometric shapes) of a high class.

The machine is intended for use in climatic conditions - U.4.1. according to GOST 15150-69

Main design features

• Installation of the variator on a special plate that does not have contact with the stand, as well as the independent suspension of the machine apron, reduces the level of vibration during processing and improves the quality of the machined surface.
• Feed box provides cutting capabilities large quantity metric, modular threads and obtaining a wide range of longitudinal and transverse feeds without changing guitar gears. The spindle is mounted in original radial and thrust hydrostatic bearings, which, combined with the rigid design of the machine, allows for unique turning precision.

It is not built into an automatic line.

Accuracy class P according to GOST 8-82E.

Developer - Odessa Design Bureau of Special Machine Tools.

List of components of the screw-cutting lathe OT-5

1. Bed - 16B05P.111.000
2. Cabinet - OT-5.121.000
3. Front headstock - OT-5.221.000
4. Guitar - 16B05P.311.000
5. Feed box - 16B05P.321.000
6. CVT - 16B05P.211.000
7. Switch - OT-5.821.000
8. Frame - OT-5.131.000
9. Lubrication unit - 16B04P.411.000
10. Apron - 16B04P.331.000
11. Caliper - 16B05P.341.000
12. Rear headstock - OT-5.231.000
13. Cooling - OT-5.511.000
14. Fencing - OT-5.611.000
15. Electrical equipment - OT-5.811.000

List of controls for the OT-5 screw-cutting lathe

• 1. Speed ​​selector knob
• 2. Thread pitch increasing link handle
• 3. Feed drive reverse handle
• 6. Feed and thread switching handle
• 7. Handle for switching feeds and threads
• 8. Handle for turning on the lead screw or lead shaft
• 9. Handle for switching feeds and threads
• 10. Feed and thread switching handle
• 11. Variator speed shift knob
• 13. Handwheel for changing spindle speeds
• 14. Spindle rotation control handle
• 21. Cooling switch
• 23. Introductory machine
• 25. Handle for turning on the apron safety device
• 26. Handwheel for adjusting the amount of traction force
• 28. Handle for turning on the uterine nut
• 29. Button for switching longitudinal and transverse feed of the caliper
• 31. Handwheel for moving the tailstock quill
• 32. Tailstock clamp handle
• 33. Handle for moving the upper carriage
• 34. Tailstock quill clamp handle
• 36. Light switch
• 37. Tool holder clamp handle
• 38. Manual lateral movement handle
• 39. Handwheel for manual longitudinal movement
• 40. Button for turning on the handwheel and longitudinal feed dial

OT-5 Kinematic diagram of a screw-cutting lathe

The kinematic diagram of the machine allows the following operations:

• the main movement is spindle rotation
• feed movement - cutter movement
• rotation of the lubrication pump

CVT (continuously variable gearbox)

The variator consists of the variator itself and a two-stage gearbox (range shift box).

The first (drive) shaft 2 of the variator is driven into rotation by a flanged electric motor through a gear coupling half. The second half of the coupling is made integral with shaft 2, on which a stationary (in the axial direction) disk 4 and a spring-loaded sliding disk 3 are installed, forming the variator drive pulley. From this pulley, rotation is transmitted through a wide V-belt to shaft 7 through the driven variator pulley, consisting of a fixed disk 5 and a controlled sliding disk 6.

In addition to the driven pulley, gears 8 and 9 are located on shaft 7. Gear 9 is equipped with an outer and inner ring gear and a half-coupling. Gear 8, moving along the splines along shaft 7, switches the speed ranges of the variator output shaft. The drive pulley of the V-belt drive, connecting the variator to the headstock, is mounted on this shaft. To tension the transmission, the housing 11 of the variator gearbox can be rotated on the glass 10, mounted on the housing 1 of the variator. The housing 11 is rotated using the coupling nut 21, after which the housing is secured with screws to the glass 10.

The control mechanism for the variator and gearbox is located on top of the variator body. Handwheel 12 controls the movement of sliding disk 6, handle 16 serves to switch gears in the gearbox. The planetary gear 20-19-18-17 connects the handwheel 12 with the disk 13, on which a ring 14 with a dial 15 is installed. There are two spindle speed scales on the dial, one for direct activation of the spindle, the second for turning on the spindle through overdrive.

To read the scales, two pairs of indicator strokes are used, printed on a transparent shield located above the dial. When switching variator speeds, the shield moves together with handle 16. For counting, use the pair of index strokes that is currently in the upper position.

OT-5 Spindle head of a screw-cutting lathe

The headstock housing contains:

• spindle
• overkill
• drive of threads and feeds with bit
• control mechanism

The headstock take-up pulley 8 is mounted on a bushing 11, coaxial with the spindle 4. To the left of the pulley there is a direct spindle coupling 10, and to the right there are gear wheels 2, 6, 7, 11.

Machine spindle rotates in precision rolling bearings.

A double-row roller bearing and two angular contact ball bearings are installed in the front spindle support, and a radial ball bearing is installed in the rear support.

The rear support of the spindle and the left support of the sleeve 11 of the pulley 8 are located in the cup 9. When replacing drive belts, this cup must be removed.

Bust gear ratio the headstock is equal to 1/8. The control of the search 6, 7 and the direct clutch 10 is carried out with one handle. Next to the selection gear 11 on the spindle 4 there is a gear 3 for driving threads and feeds. The gear wheel 1, located on the first shaft 12 of the drive of threads and feeds, can be connected either to the gear wheel 11, or to the gear wheel 3 sitting on the spindle. This makes it possible to increase the thread pitch when enumeration is turned on.

Control handles The headstock mechanisms are located on the front wall of the headstock. A cast casing is attached to the headstock body 5 in front, in which control buttons for the main electric motor are installed.

Mechanism lubrication the front headstock is centralized, from the lubrication unit.

The feed box of the machine (Fig. 12) in combination with the guitar allows you to set the required gear ratios for cutting threads with different pitches and obtaining different longitudinal and transverse feeds.

The feed box contains the following mechanisms:

• Main row mechanism (gears 3, 4, 1, 2, 5, 8, 6, 7)
• Multiplying mechanism (gears 9, 10, 19, 15, 16, 17, 18)
• Row shift mechanism (gears 21, 22, 3, 4)
• Mechanism for switching the transmission of motion to the drive shaft or to the lead screw (coupling half 14)
• Mechanism for direct engagement of the lead screw (coupling halves 12, 14, 18, 20)
• Switching mechanism (not shown in figure)

The main series mechanism makes it possible to obtain four gear ratios proportional to the four pitches of metric or modular threads.

By multiplying these ratios by the multiplying gear ratios (1/4, 1/2, 1, 2) and by the row shifting gear ratios (1.1 1/4), metric and modular threads can be cut while constantly tuning the guitar.

The switching mechanisms are located on the plate under the feed box cover. The shift handles are located on the front cover.

Main technical characteristics of the OT-5 machine

The 16B05P machine, developed by specialists from the Odessa machine-tool plant as a high-precision unit, was produced in Soviet times at the Odessa and Kirovkan plants.

1 Basic technical and operational characteristics of the machine

Turning equipment 16B05P was supplied mainly to industrial enterprises instrumental, radio engineering and instrument making fields. This unit was also used at precision engineering plants.

It allows you to carry out high level accuracy of any turning operations in the collet, centers, faceplate and chuck, cutting threads (inch, metric, modular), guaranteeing decent quality of all work.

According to the accuracy class, it is assigned to units of category “P”. The passport says that the integration of the described equipment into the in-line automatic lines not structurally provided. The machine consists of a bed, a guitar, a caliper, a variator, a stand, electrical equipment, headstocks (rear and front), a lubrication mechanism, a stand, two cooling systems, an apron, and a feed box.

The machine makes it possible to process products up to 50 cm long, provided that their diameter above the bed does not exceed 25 cm (above the support - 14.5 cm). The cutter of the unit is mounted in a special holder with a height of 2 cm, while the maximum height of the working tool itself installed in the holder does not exceed 1.6 cm.

The machine passport contains diagrams, photos of its individual components and many other characteristics, as well as important parameters that you need to know for the safe and efficient operation of turning equipment. In particular these are:

• number of caliper feeds – 28 in any of the provided directions;
• the greatest movement of the caliper is 16 cm (transverse direction);
• rotary angle of the cutting tool slide – 45°;
• The maximum movement of the cutting slide is 11 cm.

2 Brief description of the variator design

This mechanism of the 16B05P machine includes a box that allows you to switch ranges directly from the variable device. The latter has a drive shaft. It begins to move when the flange motor transmits the required rotation to it through a gear-type coupling half.

In this case, the second part of the coupling, interlocked with the shaft, is connected to a sliding spring-loaded and stationary disk. This entire structure is the drive pulley of the mechanism in question, from which the V-belt transmits rotation to the shaft. The variator device also has a driven pulley. It contains two disks - a sliding control and a fixed one.

In addition, the unit passport describes other structural elements of the variator:

• wheel (geared), necessary for selecting the speed of the shaft (output): it moves along the shaft along the splines;
• another wheel with a toothed inner and outer ring;
• output shaft: there is a pulley on it, which, through a V-belt drive, connects the front headstock of the machine to the variator;
• a coupling nut that rotates the body of the device in order to fix it on the glass with screws.

The glass itself is necessary to tension the selected gear.

The entire described system is controlled and regulated by a special mechanism located on the variator body. It includes a planetary gear, a handwheel, a ring equipped with a dial, a handle and a sliding disk. On the indicated dial there are scales by which the operation of the spindle is controlled through enumeration and the functioning of the device when it is started directly.

Above the dial there is a shield (made transparent) with four indicator lines. It is with their help that scale readings can be read. The transparent shield rotates simultaneously with the handle designed to select the speed of the variator device.

3 Feed box and spindle head of turning equipment

The 16B05P machine has a guitar and a feed box (KP). These two nodes allow the operator to select the gear ratios he needs. The installation passport speaks of the following gearbox mechanisms:

• switching;
• row offsets;
• main row;
• turning on the lead screw directly;
• transmission to the lead screw or shaft (using a half-coupling) of rotation;
• multiplying

The switching mechanism is located under the gearbox cover directly on the unit plate. It is controlled using handles on the lid. The design of the main series allows you to choose one of four gear ratios, which are directly proportional to the same number of steps of modular or metric threads. By multiplying the ratios of the displacement mechanisms, the main row and the multiplying device, it is possible to cut modular and metric threads on the machine with a fixed tuning of the guitar.

Now let’s look at the characteristics and features of the headstock of the turning equipment described (it is also often called the spindle headstock). Its body contains a special control device, a brute force, a spindle, a feed and thread drive, equipped with a snaffle.

The headstock pulley (receiving in its functionality) is mounted on a separate bushing. This bushing is coaxial with respect to the spindle. On one side of the take-up pulley there are pick-up wheels, on the other there is a coupling that allows the spindle to be engaged directly.

The spindle is located in a cup, which has to be removed in cases where the service technician or repairman installs new drive belts on the machine. The spindle rotates in rolling bearings (precision type); the presence of radial, angular contact and double-row roller bearings is also provided. All of them provide high performance characteristics of the unit.

The spindle head is lubricated by a lubrication mechanism and is controlled by levers located on its front wall. On the body of the spindle assembly there are also buttons for starting the main engine of the machine (they are placed in a cast casing). The direction of the thread or feed can be changed using a snaffle.

The lathe from 5 is designed for metal processing and is characterized by increased accuracy. This device was developed at a machine tool plant in Odessa. The design of the mechanisms allows you to work with workpieces of large diameters (up to 25 cm above the bed). Most often, this machine is used in small repair shops, which is dictated by its lightweight design and relatively small dimensions.

Description

The operating principle of the installation is based on the transfer of energy from an electric motor through a V-belt system and a gear-type coupling to the input shaft of a converting device, which changes the speed due to the movement of the pulley disk. Only by passing through this unit is rotation transmitted to the working units of the machine.

In addition to standard structural elements, the basic structure of the device includes additional devices. The frame provides the possibility of installing a special stop for more convenient work with large workpieces and a special clamp for rods. In addition, the machine includes a chuck with three clamps for better control over rotating bodies.

Technical indicators

This machine has relatively small dimensions:

• height – 1.36 m;
• length – 1.51 m;
• width – 0.72 m;
• weight – 765 kg.

The design of the mechanisms allows you to create 3 types of threads: metric, inch and modular. The number of feeds on the machine is 28. The spindle is made with a hole of 2.6 cm, and the number of its revolutions is in the range of 30 - 3000 rpm. The design also provides for spindle braking.

The maximum diameter of the workpiece processed above the bed is up to 25 cm, and above the support – 14.5 cm. The gap between centers is 50 cm. The maximum diameter of the rod is 2.5 cm, and the maximum length of the part being worked on should not exceed half a meter .

Thanks to all the technical capabilities listed above, this device is classified as a machine with increased precision. The dimensions of the machine and the features of its functioning are best suited for small repair and mobile workshops.

Design and control system features

1. Bed.
2. Support stand.
3. Front grandma.
4. Guitar.
5. Transmission.
6. Converting device.
7. Switch.
8. Frame.
9. Lubrication unit.
10. Apron.
11. Caliper.
12. Rear grandma.
13. Cooling system.
14. Fencing.
15. Electrical equipment.

The electrical equipment of the machine is designed to be powered from a general network with a voltage of 220 V or 380 V. To illuminate the working area, a 12-volt voltage is required. The design of the device provides for the presence of two asynchronous electric motors. The electrical component of the machine is one of its most vulnerable points.

To avoid failure of the entire mechanism or its individual parts, it is necessary to regularly and carefully check the condition of the electrical equipment and replace faulty parts in a timely manner.

Video: lathe OT 5.

Machine controls

1 – Override lever.

2 – Protective panel.

3 – Handle for changing the thread pitch.

4 – Drive reverse handle.

5 – Protective panel.

6 – Handle for switching feeds and threads.

7 – Handle for switching feeds and threads.

8 – Handle for activating the lead screw and shaft.

9 – Knob for switching feeds and threads.

10 – Knob for switching feeds and threads.

11 – CVT gear shift knob.

12 – Rear headstock.

13 – Flywheel for spindle speed indicators.

14 – Spindle speed control knob.

21 – Cooling system activator.

22 – Introductory machine.

25 – Fuse activator on the apron.

26 – Flywheel for adjusting the amount of traction gain.

28 – uterine nut activation handle.

29 – Handle for selecting caliper feed (longitudinal and transverse).

31 – Handle for moving the rear quill. grandmas.

32 – Rear clamp handle. grandmas.

33 – Handle for moving the carriage.

34 – Rear quill clamp handle. grandmas.

36 – Work area lighting switch.

37 – Handle for fixing the tool holder.

38 – Handle for manual movement (transverse).

39 – Handwheel for manual movement (longitudinal).

40 – Button for activating the longitudinal feed flywheel.

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Price 7900 USD (505,000 rubles)

2. Woodtec H-2030L

Price: $9,990 (RUB 638,900)

3. Woodtec H-2040L

Price: $10,990 (RUB 702,800)

IN STOCK, READY TO SHIP

In the Moscow region

12 MONTH WARRANTY

EXHIBITION HALL AT ADDRESS: G. REUTOV, ST. TRANSPORTNAYA, no. 20.

CHARACTERISTICS:

Processing size: 1300x2500x170 mm
Electrospindle power (forced air cooling): 3.2 kW (5.5 kW option available)
Spindle travel along the Z axis, mm 170 (option 300 mm)
Tool change system Manual (collet, nut fixation)
Desktop type: Mechanical with “T” fastening grooves
Spindle speed, rpm 0 – 24,000
Overall dimensions of the machine in packaging 2950x2050x1650 mm
Weight 1100 kg
-SENSOR FOR MEASURING AND CALIBRATING TOOL LENGTH

3kW chip ejector included!!!

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