How to make a drum for grinding. Homemade grinding drums. Making a drum machine with your own hands

Homemade grinding drum on a drill.
With e-examination wooden products It is necessary to process not only straight planes, but also curly edges. For this, an indispensable device is a grinding drum. Such a drum can be bought, or make it yourself. And to use the manual drill or stationary drilling machine.

The curly edges of the joinery parts can be processed in another way, manual milling With a copy cutter by template. This gives a win in time and quality, but only when processing large number details. If you have a single product, then there is no sense to do for each template. Moreover, for the manufacture of the template, there will be a grinding drum again, without it, you will not make an accurate pattern.

As I already told the drum for grinding, you can buy, they are sold different diameters and quality. But it simply to work simply while holding the drill on the weight is not too comfortable, and the main thing is not possible to get accurate and high-quality processing.

One of the options of the device can be the manufacture of a small table under the drill. The drill itself is attached to the desktop vertically. From hand drill can be made.

A table can be collected from cropping MDF, thick plywood or chipboard (laminate). All parts are mounted among themselves on self-drawing. The product is going in the form of a box with a worktop. A hole on the diameter of the drum is drilled in the top cover. The lower edge of the skins must be below the tabletop line. From plywood can be made.

You can easily attach the legs to this frame, then you will have a separate tool. In the embodiment you see in the photo the box is attached to the desktop.

Drill will suit almost any, but it is desirable to use more powerful for serious work. The drill to the king of the desktop on the clamps is attached. I already wrote on the site about horizontal installation Drills, in the article.

Homemade grinding drum.

The drum can not only buy, but also make it yourself. In fact, it is not so difficult if you have a lathe on wood. You can process the drum on a drilling machine, only it will be more difficult.

I use a metal drum to work, the skin in it is mounted with a metal stilette with a slot. Installed drum on stationary milling machine. You can add such item on special equipment, see the article. But this item can be made and simpler means.

For the assembly of the device, we will need a vertical axis, for this a bolt or stud with a diameter of 10/12 mm is suitable. and a length of 100-150 mm. . On this axis, plan the pieces of plywood, pre-filled with a junk with a small margin of diameter. In the center of all parts, drill a hole according to the diameter of the bolt. Plywood fragments lubricate glue and clamp the nut. Then the drum is preferably sharpened on turning machine Wood, so it turns out a more accurate and even surface.

Another embodiment of the homemade drum. Only two details from plywood, upper and lower, and a piece of solid foam is pressed between them. A simple packaging foam is not suitable, it is too loose. The product in the photo was assembled just like this.

How to stick a skirt.

Stores sell sandwich with self-adhesive inner surface, this is the most convenient option. If there is no such skins, it is possible to glue the usual one. It is necessary to glue with the allen, but it cannot be shyned to the abrasive, you will get a borgon that will beat the detail. For proper stickers, it is necessary to mention the nesting at the lower end of the skin, wept in the solvent and consider abrasive.

Do not forget that the stack is consumablesAnd sooner or later it will have to tear and stick a new one. In order for this process easier, without damage to the drum itself, it is pre-pasted a tight paper and an eye on it. I tried to mount the skirt of the stapler, but it is not too good. The brackets are quickly erased, and besides, the workpiece scratches. All the same the best wayThis is the use of self-adhesive skins.

The diameter of the drum can be different, it depends on what details you are going to process. But just remember, the less diameter, the faster the skin goes away. Most suitable option Diameter from 60 mm. up to 100 mm. . Most often, the drum is used to handle parts up to 50 mm thick. , Therefore, the working height of the drum can be 70-120 mm. .

During the manufacture wooden structures in obligatory It is necessary to clean their surface. Manual work will take a lot of time and will not be productive. Factory grinding centers have a high cost. Therefore, in some cases it is more expedient to make the machine with their own hands.

Design of drummer

Manufacturing should be started with the study of the design features of this type of equipment. Drum-type grinding machine is designed for processing wooden surfaces, their leveling and removal of burr.

The device belongs to the form of plane oxyl tube wood machines that perform the calibration function. There are many models and types of equipment. But the main task Before making an aggregate with your own hands is the choice optimal design. Optimal option It is a detailed acquaintance with factory analogues and drawing up a manufacturing scheme based on the data obtained.

Structurally, the machine should consist of the following components:

• case. The main parts of the equipment are attached to it;
• power unit. Most often, an asynchronous electric motor is installed for this;
• grinding drum. It is important to choose its diameter correctly, the way of removing the shavings. You can make the basis for which it is installed emery ribbon. Either to order a cylindrical head with a cutting edge from a professional toctor. It all depends on the type of work;
• device to change the engine shaft operation frequency;
• desktop. It will be located workpiece. Experts are recommended in the manufacture of the machine with their own hands this component from the glassstolite;

Additionally, in drum grinding equipment, it is possible to provide a mechanism for removing dust and chips from the processing zone. It is also recommended to do the desktop with changeable height Regarding the worker drum. This will allow you to handle a part of the end of the wooden billet.

If the grinding of the outer or inner plane of the board is necessary - the drum should be placed horizontally. At the same time, it is possible to adjust its height adjustment.

Types of grinding drum machines

The next step is the choice of the design of the tree of the tree. The main parameter is the form of a wooden blank and the degree of processing. Homemade equipment Drum type is intended for forming smooth and smooth surfaces with a small area.

Special processing centers are needed for factory production lines. They have a complex functional, can simultaneously perform several operations. However, their main disadvantage is the high cost. Therefore, they are inappropriate as home equipment.

The following types of processing centers are exist:

• flatShelipoval. Processing is performed in the same plane. Can be used as an example for self-making;
• circular sloping. Designed for processing cylindrical surfaces. For this, the configuration provides several nozzles with different diameters;
• planetary. With their help, there is a flat plane on the products of a large area.

For a complete set of a small home workshop, the plane oarsal models are most often chosen. They are distinguished by a simple design, accessibility of components and relatively rapid production.

In addition to the leveling with drumming grinding machines, you can remove the paint or varnish layer. They are used for restoration old furniture or wooden details Interior with your own hands.

Independent manufacture of grinding machine

SAMI simple model The machine is your own hands, which is mounted on the bed. Grinding cylinders are pulled out of wood and sandpaper with the required grain rate is mounted on their surface.

But such a design has a small functionality. For medium-sized processing, it is recommended to make equipment on a tree on another principle. First of all, it is necessary to correctly choose the power unit. Most often apply an electric motor with a capacity of up to 2 kW and speed of revolutions to 1500 rpm. These requirements are the asynchronous models that can be taken from old household appliances – washing machine or vacuum cleaner.

The procedure for making a homemade machine.

1. Case. It must be sufficiently stable. Therefore, it is made of sheet steel with a thickness of 1.5 mm and more. Alternatively, it is possible to consider plexiglas with a thickness of 10 mm.
2. The engine is installed in such a way that the shaft is in the vertical plane.
3. Drum for processing. If only grinding works are planned - an abrasive tape is installed on it. For deeper processing, it will be necessary to make a steel cone with cutting edge.
4. Desktop. It is located at the top of the scheme. It is recommended to make it adjustable relative to the fixed cylinder.
5. Control block. In the structures made by their own hands, rarely provide for the possibility of adjusting the speed of rotation of the engine. Therefore, the block will consist of the buttons on and off the unit.

Homemade Machine

The overwhelming majority of grinding operations in everyday life are carried out manually or using a drill. This is understandable. To buy expensive specialized equipment for using it at home, where grinding operations are usually very much vary, it is not always appropriate.

There are various devices for manual and mechanized grinding. All of them can be divided into two main types.

• Tools that directly refer to the processing of parts are manual devices to which sandblocks (pads, bars) and grinding nozzles on a drill or a grinder, which are all sorts of support plates and drums.
• Devices providing the desired position of the grinding tool relative to the part - guides, supporting surfaces, etc.

A separate form can be attributed to the appliance for dust, which, by virtue of the abundance and harm of grinding dust, should not be neglected.

Handmade grinding devices

When manually running, to ensure the necessary processing parameters, the most different grinding devices are applied.

To the most simple manual devices include grinding pads that can wear names: grindlers, grinding bars, etc. Depending on their shape, they can be treated both flat and shaped surfaces.

The grinding pad consists of three main elements - the housing with the working surface on which the skin is stretched, the clamping mechanism that locks the skin on the block, and the knob to which the grinding force is attached. The latter may be absent as an independent element, in this case its role performs the case. The clamping mechanism can also be replaced by other elements that perform its function, for example, or velcro.

A lot of types of branded pads are produced, differing from each other by the form and method of fastening the eath skirt. The body is most often made of plastics, working surface which is covered soft materialcontributing to smoothing irregularities.

The simplest pads for grinding is easy to make and yourself. It is best for this tree. The working surface is desirable to salae or climb a soft material, for example felt.

Most simple design Brousa represents two pieces of a blackboard or chipboard, shued with each other screws - so that the skin shook the bottom piece, and its ends clapped between the details.

If you attach a little more effort, then you can make a more functional bar, in which the skin clamp will be carried out with a barish nut, which is much faster and more convenient than to use screws for this.

For the processing of large surfaces, if for some reason the power tool is not suitable, it is best to make a grinding "planer". Its possible design is shown in the figure below. It is so simple that it does not need explanations. The dimensions of the device are determined by specific working conditions - parameters of the processed plane and physical data of the operating.

Grinding "Rubankov"

For grinding the edges, located at an angle of strictly 90 ° to the adjacent surface, will be useful to make a device that allows you to provide the desired straight angle. It is shown schematically, a specific implementation may be any.

Fixture for grinding edges (end from the end): 1 - base, 2 - handle, 3 - side stop, 4 - rigidity edge, 5 - grinding skin, 6 - strip of felt.

One of the main tasks in the manufacture of homemade bars is reliable fastening To them skins. In addition to mechanical clamps (with the help of screws, nuts, etc.), other methods for fastening sandpaper can be used in homemade grinding bars.

You can simply nail it over the ends of small nails. The method is easy to implement, but uncomfortable if you have to change the skin.

An acceptable way to fasten the emery paper is to glue it. Adhesives are suitable for this, allowing it relatively easy to separate the skin from the base when it is replaced.

Sometimes apply fastening with wedges with wedges. In Bruke make the cuts in which the edges of the skins are refilled and wooden wedges are driven. Duties and wedges can be the most different in size.

Fixtures for a drill and a grinder

Manual grinding requires large spending forces and time. With significant volumes of grinding work, it is advisable to use the electric tool - a drill or a grinder, in particular. To turn the latter grinding toolThey need to be equipped with a suitable grinding nozzle - support plate or drum.

Grinding plates. These nozzles are a plate of plastic or rubber, which is attached to the sandpaper in the form of a circle. Plastic plates have a soft or not very soft layer between the base and velcro, for better fit of the skins to the treated surface. Drakes for a drill have a shank in the form of a rod, for the ears - threads to cool them on the weekend of the grinder. The nozzle for grinding on the grinder can be turned into a drill nozzle by screwing into it an adapter with a shank.

But due to the stiffness of the nozzle for the grinder, strictly vertical location of the drill relative to the grinding plane is almost impossible. When using a rigid plate (flexible work easier) any small tilt leads to turning around the edge of the plate into the workpiece and try to break out of the hands, which leads to an increase in tilt and deeper turning around the edge of the circle. This leads to a good noticeable deepening on the surface being processed. Therefore, only the nozzles for grinding can compensate for the slopes for grinding capable of compensating for the drill tilt: either rubber, or with a thick soft layer between the plastic base and velcro, or having a movable pin mount.

Rigid plates are suitable only for working with a fixed drill, for example, as shown below.

If not found on sale a suitable nozzle on a drill for grinding, and there is a rigid nozzle, you can make a thick soft layer between the plastic base and velcro with your own hands.

Velcro is neatly cut off with a stationery (construction) knife, and a large round sponge for washing the body is glued as a soft layer. In compressing the sponge in the grinding process, symmetry may be disturbed (the velcro with the skin is shifted in some direction) but during the turns of the drill (3000 rpm) it is not critical, it will not work with a grinder.

Combined nozzles for grinding on a drill are manufactured, in which the shank may be in two positions relative to the working surface - to be rigidly blocked with it or have a degree of freedom (unlocked). In the latter case, the working surface of the instrument has the ability to adapt to the slope of the drill, due to which the treatment is obtained without the formation of recesses. But the price of such devices is close to the price of orbital grinding machines.

To make the shank movable, the conical nut jars (in the photo below with a similar device, it is twisted to the cartridge).

The skin is attached to plates with velcro. This method of fastening requires special emery paper on which the velcro response layer is applied.

Grinding drums. Grinding drums for a drill are a cylinder with a shank, a grinding paper is fixed on the cylinder (the endless ribbon ribbon, glued to the ends) or the strip of eases with free ends. Unlike the support plate, which is perpendicular to the axis of rotation, the drums are located in parallel to it.

To the skin tightly sitting on the drums, the latter have various mechanisms Tension. According to the principle of their operation, there are two - an increase in the outer diameter of the drum (used for infinite tape) and the tension of the abrasive tape using a special mechanism (used for an unlocked tapes). The increase in the diameter of the drums is implemented different ways - their pumping (in pneumatic models), compression in the axial direction (at drums with rubber elements). In different ways, the tension of the unlocked tape can be performed. Most often this is done with a rotating screw, which pulls the ends of the sandpaper. Below are several options for drums with different types of skin tension.

The drum under grinding endless ribbons can be made by placing rubber gaskets between wooden discs. When tightening the axial bolt, the rubber is crushed, expanding in the radial direction and securely fixing the grinding paper, bowed to the drum.

Grinding devices using a drill. Grind the details with a plate or drum, holding a drill in your hands, not as simple as it may seem to someone who has never done it himself. In many cases, a better-quality surface can be achieved by securing the tool is motionless. Especially when processing small details that are easy to manipulate, keeping them in their hands. There are fixtures for grinding, allowing to consolidate the power tool by making it in whole or in part is fixed.

You can use branded guides for a drill that are intended mainly for drilling, but can be successfully used for grinding - mostly drum. You can work with their help in two ways. Fixing the drill in the guide stationary and shifting the workpiece relative to the tool (photo and below), or moving the guides along with the drill relative to the workpiece, pressing to the last reference surface of the guides (photo B below). And in the same case, the slope of the drum is excluded, due to which the surface treatment is ensured at the desired angle.

You can independently make the simplest device for grinding from two boards, which allows to provide an angle of a grinding edge relative to the main surface equal to exactly 90 °.

Dust removal. With a grinding of a tree, a lot of dust is formed, which not only creates inconvenience, but also harms health when inhalation. With dust it is necessary to fight. The easiest way for this is to suck it with a vacuum cleaner, placing the hose closer to the grinding zone.

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This instruction will show in detail how to make homemade grinding drums for drilling machine. Drums can be done different diameters, from different size emery paper. The result of simple manipulations can be a decent set of grinding drums, which will allow you to easily perform any finishing work.

Materials

• Wood;
• steel rod or bolt;
• washers and nuts;
• sandpaper;
• carpentry glue;
• pVA glue;
• ring drills;
• gum.

Step 1. To begin with, it is necessary to determine the diameter of the grinding drum. From this and repel, choosing a ring drill for further work.

Step 2.. Ring drill, cut out from the board 5 round blanks. Their number can be varied, which depends on the height of the board itself and from the height of the drum.

Step 3.. Finished wooden circles fold one on another, missing the touching surfaces of PVA glue. Do not take too much glue. The resulting bar, with not yet glued surfaces heal in vice. Check that no circle be shed out of the row. Tightly clamp the workpiece of the drum and leave in the vice until the glue is completely drying. PVA glue strength is quite enough for this stage, as in the future the rings of the drum will be attached using a bolt.

Step 4.. Ready wooden drums must be seized. Note that than less size Drum, the more carefully there should be processing. Passing the drums, be sure to remove all the dust from their surface, which remained after grinding.

Step 5.. Drums drill by choosing a drill to the size of the existing rod or bolt. After that, insert the bolt into the resulting opening and secure it with washers and nuts.

Step 6.. Now it has arrived a turn of the final stage. Once again, cleaned the surface of the drums, cover it with joinery glue. Cut the piece of sandpaper, and the joint into the joint is glued to the surface covered with glue. Tightly press the paper to the drum with your hands, smooth and fix the entire design with rubber bands.

Grinding of various wooden parts - the need for each wishes to make repairs in his home, or own hands Create some decor element.

Of course, you can also polish small details and ordinary sandpaper, but to cope with a large amount of work, you should change the emery on the grinding machine. It will help to significantly save time and will quickly lead the item to the corresponding view. One of those useful devices It is a drum grinding machine.

Classification and structure

Grinding devices of drum type belong to the calibration class machines. Such a grinding machine is most often used to work on a tree, but they can also be treated with other materials.

Cylindrical grinding wheel (drum) allows you to calibrate boards and rails of different lengths and configurations. The billet can also be made of different materials: Chipboard, veneer, etc.

The structure of the grinding machine:

1. Cylindrical grinding drum.
2. Device for feeding.
3. Dusty device.
4. Working surface.
5. Drum speed converter.
6. Engine, which drives a grinding cylinder.
7. Stanna for fastening the key nodes of the machine.
8. Drum height regulator.
9. Device to protect the operator.

Here lists the main elements of the structure of the drum machine. Depending on the specific model of the device and the specifics of its destination, the configuration can change a little.

Basic models of devices

Drum type machines can be purchased in ready-to-use form. There are several most popular and common brands for the production of these devices. It makes sense to present individual models.

JET company. The American firm specializes in the production of modern machines most different types, including drums. In the line of its goods there are several grinding machines with a cylindrical form of the working circle.

• JET DDS-225. This machine is one of the most powerful devices of this type in the manufacturer's lineup. It is used both in domestic workshops and on small industries. Feature - Double grinding drum. The cost of this machine is appropriate - from 150,000 rubles.
• Jet 10-20 Plus. A compact grinding device that allows you to handle up to 50 centimeters of surfaces. Perfectly suitable for small homemade workshops. The cost does not exceed 25 thousand rubles.
• JET 16-23 Plus. It is considered one of the most universal machines of its type. It is used for processing building materials, kitchen devices and even musical instruments. Most often, such a machine is used in small facilities for the production of furniture.

Corvette 57. Chinese production machine that is distinguished pretty high quality assembly and wide functionality. The machine is designed for grinding the flat surfaces of wooden blanks and cutting parts to the required dimensions. The machine is characterized by a rather democratic price - 24 thousand rubles.

Besides these machines, there are not good options from german manufacturers. It is worth noting that depending on the price, german companies They offer the corresponding sets of opportunities for their devices. Minimum amountFor which you can buy a grinding machine in the basic configuration - 15-16 thousand rubles.

Video: step-by-step manufacture Drum grinding machine.

How to make a grinding machine with your own hands?

If it is not possible to lay out a sufficient round sum for decent option Drum grinding machine, then you should try to make it on your own. For a person who works well in the mechanics is not too complicated. In addition, so you will be able to save considerable money resources.

In order to assemble the drum grinding machine at home, you must get the following parts:

1. Grinding drum. Cylindrical form The device can be created on the basis of "garbage" building materials. To this end, smooth pieces of wooden bars often use, which are evenly attached to a special metal axis with glue. At the same time, special attention should be paid to the density of the adjacent of these bars to each other. Also, the drum can be made on the basis of a polyvinyl chloride tube with a diameter of up to 10 cm, which dresses on an iron rod with a diameter of 1.5-2 cm. It should be a little shorter of the rod itself. In the ends of the pipe insert special plugs with holes for the rod. We recommend plugs to fix with screws. We do and fix the rod. We wind the tight layer of rubber on the pipe, to which sandpaper will be mounted.
2. Engine. It is best to use a working engine from an old washing machine (like pullees, belts, etc.). The optimal power of the motor should be from 200 to 300 W. It is desirable that the engine is also asynchronous and single-phase. Rollover level - 2000-3000.
3. Case. By design, it should be simple and comfortable. It is best that the casing of the machine consists of two side panels, struts and the table itself. Special attention should be paid to the strength and rigidity of the desktop, which should not be deformed when pressed by the processed billet on the drum. The desktop should consist of the base and moving part.

After the main parts of the machine will be collected separately, you can start final assembly Total apparatus. First of all, you should attach the engine to the bottom of the machine housing in place before drilled holes. The grinding drum is installed in the upper part of the case and are attached to two bearings, which are located on the side walls of the housing.

Then on the drum and the motor secure special pulleys and stretch the drive belt. After all the necessary preparations with electrical pipelines, screw the desktop with special bolts that will keep it on required level. Specialists are persistently recommended to mount on the machine also a protective casing.

It is worth noting that independent creation The drum grinding machine either does not cost without certain costs. First of all, it concerns your time, but the machine will cost you cheaper than the factory, only if you have a working engine. Without the engine and certain skills, create a cheap analogue of the branded machine is almost impossible.