Description of the STD120M machine. Description of the machine STD120M Lathe STD 120m

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Details Category: Wood processing

Construction of a wood lathe

Making cylindrical parts by hand is labor-intensive and time-consuming work. And it's hard to get the product good quality. You can do it much faster and more accurately cylindrical part on lathe. It processes wood blanks by turning. Main parts of lathe - bed, headstock with electric motor, tailstock and tool rest.

Lathe for wood processing STD-120M and its parts:
1 – base; 2 – electric motor; 3 – bed; 4 – belt drive guard (casing); 5 - magnetic switch; 6 – front headstock; 7 – spindle; 8 - handyman; 9 - tailstock.

IN headstock (see picture) installed spindle - a shaft that receives rotation from an electric motor using a belt drive, as well as bearings.

1 -headstock body;2 - belt drive pulley;3 -washer with locking screw; 4 , 7 - shaped lids; 5 -thrust ring; 6 - spindle; 8 - special nut.

End spindle has a thread and is screwed onto it special devices for fastening the left end of the workpiece. Depending on the size of the workpiece, different devices are used: trident(see fig. A), faceplate(see fig. b), cartridge(see fig. V).

The blanks are not large diameter and up to 150 mm long are fixed in cartridge. Before this, the end of the workpiece is slightly beveled into a cone, clamped in a workbench clamp and driven into the chuck with a mallet. For more reliable fastening, a screw is screwed into the workpiece through the side hole.

Long workpieces are fixed at one end in trident . To do this, make a recess in the center of the end of the workpiece with an awl (or drill a hole with a diameter of 4-5 mm to a depth of 5-9 mm). After this, a cut is made through the center of the workpiece with a hacksaw with fine teeth to a depth of 3-5 mm. In the center of the other end, make a recess with an awl.

Short workpieces of large diameter are fixed in faceplate , screwing the workpiece with screws.

Tailstock (see picture) serves as a support for the right end of long workpieces. The tailstock is brought to the workpiece along the bed guides and secured motionless with a bolt and nut. Finally, the end of the workpiece is pressed with a special part - the center. It is moved by rotation flywheel and secure with a clamp.

1 - frame; 2 - center (Morse cone); 3 - quill; 4 - clamp handle; 5 - hole for lubrication; 6 - quill nut; 7 - quill screw; 8 - threaded bushing; 9 - flywheel; 10 - screw for fastening to the frame; 11 - cracker.

Support for cutting tool serves handyman(see figure). It can move both along and across the frame, and is secured by turning the handle.

The tool rest is installed in such a way that its upper supporting part is 2-3 mm above the level of the center line of the machine and is no more than 3 mm away from the workpiece. To check the gap, the workpiece is turned by hand one or two turns.

The transmission of movements in mechanisms and machines is shown by symbols on kinematic schemes .
They depict details that are directly involved in the transmission of motion. For clarity, outlines of other parts are often given.
The kinematic diagram of the lathe is shown in the figure.

You can turn on the lathe and work on it only with the permission of the teacher.
Do not place tools or foreign objects on the machine bed.
The belt drive parts of the machine must be protected
Do not lean on lathe parts.
Report any malfunctions in the machine or electrical wiring to the teacher immediately.

Modern factories are equipped with lathes (more complex and productive than those you will work on in a training workshop). Serve them woodworking machine operators . In addition to mastering all the techniques of turning on a machine, they must know the properties of wood, the structure of machines, be able to read drawings and diagrams, sharpen a tool, and set up a machine. Working on machines requires accuracy and precision, attentiveness and caution, and coordination of hand movements.

Description

Country of origin: Russia
Weight 120 kg
Weight 120 kg
Power 0.4 kW
Processed material Wood
Supply voltage 380 V

STD-120M: Wood lathe

The machine is designed to teach students the principles of turning wood parts during labor lessons in high school. The machine is used in school workshops for turning small parts from softwood with a moisture content of 20-25%.
The machine has a cast iron bed, two tool rests for processing long and short workpieces, a set of tools and accessories (Maisels, Reiers). The presence of a locking system ensures safe operation. Closed work zone protects the worker from emissions of dust, chips and workpieces. The machine is mounted on a stand, which allows it to be installed either on any table or on a special stand, which the consumer can make himself or order from the manufacturer. The machine is connected to a dust collection unit for collecting processing waste depending on local conditions. The following basic operations can be performed on the machine:

turning of cylindrical surfaces;
facing and cutting;
internal turning and drilling;
processing of flat surfaces on a faceplate.

Main technical characteristics:

Wood lathe using in great demand both for the purpose of equipping
specialized production workshops educational institutions, and for turning
various elements in wooden house construction, for the manufacture of kitchen and household appliances
items made from various types of wood.

Machine design

Simple and reliable design machine guarantees reliable operation throughout the entire
service life. Cast frame, which is the base with installed front
and tailstocks, movable and height-adjustable using a tool rest
resist vibrations arising during the turning process.
Cast iron base, spindle and tailstock of woodworking lathe
machine STD-120M.

Two-speed, for roughing and finishing rotation of the part
carried out through a V-belt and two-stage shaft pulleys
electric motor and spindle. V-belt transmission casing through final
The switch prevents accidental activation of the electric motor when changing
number of revolutions. Emergency “fungus” designed to stop the machine when
long press instantly stops rotation by turning on the electrodynamic
braking.

Carrying out woodwork

The machine package includes necessary equipment and tool for
performing basic wood turning work: turning various
surfaces, drilling, facing, grooving and cutting.
The chuck that screws onto the spindle is designed for face machining with Maisel
or other cutting tool for short parts after they are installed using
mallets.
Rough turning of long workpieces is carried out using a wide semicircular rake
with a cutter, resting it on the tool rest, having previously set the distance between it and
detail no more than 3 millimeters. To secure the part, a housing with
with a trident fork and pressing in the longitudinal direction with the rear center
installed in the tailstock quill to engage the fork teeth into the wood and
transmission of rotational motion.
This method of securing the workpiece is used in the manufacture of balusters, handles for
tools, rolling pins, masher, rolling pins and other products.
For finishing turning, higher position-variable speeds are preferred.
belt in pulley streams.
When making plates, turning parts with a large outer diameter and small
width, the workpiece is fixed directly to the faceplate or through an intermediate
disk with screws for which holes are provided. Helper at the same time
is installed perpendicular to the longitudinal axis of the machine, and the selection of recesses
is done by moving the cutting tool from the center to the outer diameter.

Additional features

The wood lathe is adapted to be connected to dust collection unit
using a pipe and an air duct.
If it is necessary to turn parts with a length of 500 mm or more, it is possible to manufacture a machine with
longer bed. It is also possible to adapt the electrical equipment of the machine for
connection to a 220 volt power supply, which makes it possible to operate
in everyday life when engaged in technical creativity, for example modeling.

Specifications woodworking lathe

Dimensions of the workpiece: - max. processed workpiece, mm 190
- max. length of the installed workpiece, mm 500
- max. turning length, mm 500
Center height, mm 120
Spindle rotation speeds: - number of speeds 2
- smallest, for rough turning, rpm 980
- highest, for finishing, rpm 6500
Overall dimensions of the machine: - length, mm 1250
- width, mm 575
- height, mm 550
Weight, no more, kg 100

Price and certification

The presence of the necessary declarations of conformity fully complies with the requirements
educational institutions of various fields to be equipped with this machine
training and production workshops.

The price of the STD-120M wood lathe depends on the additional equipment,
delivery distances, etc.

A lot of work has been done on some parts and components of the machine. And now the moment has come when the repaired elements can be attached to the base and little by little the machine can be recreated. But now the question is that we have eliminated the old foundation, but have not yet created a new one. In this part of the work we will engage in the development and production new countertop. But in fact, this is the stage at which it will be created new modification lathe based on the STD-120m model. And accordingly, we will assign a new model index to this modified machine: STD-120AMG. The main requirement for modification is to reduce its length. The only solution that will allow you to realize your plan will be to move the electric motor behind the frame and turn it one hundred and eighty degrees. We created a preliminary design of the foundation in the Compass-3D program.

The design length of the tabletop is almost one meter and the width is forty-five centimeters.

Fifteen-millimeter birch plywood will be used as the material for the countertop.

Additionally, with the help of small bars, the base will receive a frame around the entire perimeter. Which will make the structure more rigid and externally aesthetic.

Let's start trying on. Lay out the base blanks. The bed supports and the electric motor will be mounted on additional elements type of podium.

Subsequently, we will cut the edging bars flush with the elements of the podium, that is, we will make them at the same level.

After trying on the components and assemblies of the machine, we begin cutting plywood. We cut the base of the tabletop and two additional elements for the podium to the specified size.

After this, from the remaining material, we cut five identical parts rectangular shape. Later we will put them in a stack and connect them together. This will give us a stand for the electric motor.

The stand will have a rather complex configuration. We drill holes in the first upper element (layer) and install four cage nuts with M6 threads into it. These nuts and four screws will be used to secure the electric motor.

In the fourth element we will also install four cage nuts, but with M8 threads. Using these nuts, the stand will be fixed to the tabletop.

In the fifth element we install four nuts with M6 threads. They and four long furniture screws will tighten this entire “sandwich” into a monolithic stand - a pedestal.

Before twisting all five elements of the stand, we coat each layer with PVA wood glue. Then we screw in the screws and tighten them evenly in a cross pattern. When the layers are glued together, they will become a monolithic piece.

The stand is ready, now we install the engine on it. We secure it with four M6 threaded screws.

Next we move on to working on the base again. We mark the holes for attaching the stand and drill them. These holes should allow for adjustment of the position of the electric motor. It is necessary for precise positioning of both pulleys relative to each other.

Now we mount the frame on the base.

At this stage of work, we measured the interaxial distance of the electric motor shafts and the spindle. This parameter helped us calculate the length of the drive belt. Details about choosing and calculating the length of the belt will be written in the next article. After purchasing the belt, we tried it on. Everything turned out as expected. In general, we were pleased with the result. But the work with the drive does not end there. You will also need to calculate the belt tension system. We will also write about this in detail in the corresponding article.

After the first fittings have been carried out from the tabletop, we dismantle the frame and the electric motor. Now let's start working on the edging of the tabletop. Here we immediately provide for the possibility of installing a rear wall. To do this, we install seven mortise nuts with M6 threads into the block.

The tabletop is ready.

Mortise nuts that were previously installed in the block.

Cut and screw the plywood. Its width corresponds to the width of the base, but the final height will be determined as further work progresses.

In order not to break the mortise nuts, we will reinforce the back wall with additional fasteners. To do this, we will install special corners. These used to be shelf brackets. To fix the corner we will also use mortise nuts with M6 threads.

Description

Wood lathe STD-120 M: The cast iron bed is the base on which the main components of the machine are mounted, and is mounted on two legs. The headstock is attached to the left side of the frame. The holder with a tool rest and the tailstock are moved along the guides of the frame and secured in a certain position. The headstock serves to install and fasten the workpiece and transmit rotational motion to it, and also serves as a support for the spindle. The spindle is a steel shaped shaft, on the right end of which a thread is cut for screwing on a chuck, faceplate and other special devices for securing workpieces. At the left end of the spindle there is a two-stage drive pulley, receiving movement through a V-belt transmission from an electric motor. To start and stop the machine, a push-button control station is located on the headstock. Tailstock: Slides along the guides of the bed, serves as a support when processing long workpieces, supporting them with the rear center. On one side, the quill has a hole bored to a Morse taper, into which the rear center, chucks or drills with a shank with the same taper are inserted. On the other side, a sleeve with internal thread is pressed in. The quill moves freely in the hole in the upper part of the housing. The quill is prevented from rotating around its axis by a set screw that fits into a groove on the outer surface of the quill. A quill (feed) screw is paired with the threaded bushing, at one end of which a flywheel is mounted on a key and secured with a nut. Rotating with the flywheel, the quill screw moves the quill through a threaded bushing. Securing the quill in in the right position carried out by the clamping handle. The tailstock is secured with a nut on the frame with a block and a bolt, for screwing which a combination wrench is included. A tool rest with a holder serves as a support for the cutting tool. The tool holder consists of rectangular block with a boss into the hole of which the tool rest rod is inserted. The hand rest is secured at the desired height and in the desired position with a handle. The tool rest holder is secured to the bed guides with a special screw, washer and handle. The machine is equipped with two tool rests, 200 and 400 mm long. V-belt drive closed metal fencing, the opening cover of which is interlocked through a limit switch with an electric motor so that when it is opened, the electric motor is switched off and the machine stops.

Contact the seller

The height of the centers of the machine is 120 mm, the distance between them is 500 mm. Possible diameter of the workpiece being processed is 190 mm, turning length is 450 mm. The spindle revolutions per minute are the lowest 980/670, the highest 2350/2050. Electric motor power 0.4 kW. The length of the machine is no more than 1250 mm, width - 575 mm, height - 550 mm. The weight of the machine is no more than 100 kg.