Metal drum for emery shkins of factory manufacture. Homemade grinding machine on wood with their own hands

During the manufacture of wooden structures, it is mandatory 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 the manufacture of the aggregate is your own hands optimal design. The optimal option is a detailed acquaintance with factory counterparts 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. With your own hands, you can make the basis for which the sandpaper is installed. 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 make a desktop with a changeable height relative to the working drum. This will allow processing a piece of the end. wooden billets.

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 drum type equipment 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, in quality home equipment They are impractical to consider them.

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 to restore old furniture or wooden interior details with their own hands.

Independent manufacture of grinding machine

The simplest model of the machine with their own hands is a drill that 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 responsible 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

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 work to use a 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 the horizontal installation of a drill, 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. A drum is installed on a 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 option assembly 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.

The 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 stacker is consumable, and 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. .

Hello to all lovers of homemade, every self-relocine, which to some extent works with a tree for sure there is a separate device dedicated to grinding, whether on grinding machine Or manually, but sometimes it happens that the workpiece has a round shape, or it is necessary to polish it inside. In this article, I will tell you how the author made grinding drums with their own hands, with the help of which finishing work Will not be in tightness.

To make this homemade, we will need materials such as:
* Wooden planks, their thickness can vary, for the middle drum it is 15-20mm.
* Rod of steel or ready-made bolt.
* Washers and nuts.
*Sandpaper.
* Joiner and PVA glue.
* Crowns or so-called ring drills.
* Rubber for banknotes.

First step. In order to start work, we need to decide on the sizes of the drum, after the sizes are selected by selecting the crown at that size. The crown installed in the drilling machine drill 5 round blanks, this quantity can be changed depending on the desired height and the thickness of the billets themselves.

The second step. Armed with PVA glue glue the adjacent surfaces of ready-made round blanks and clamp them to each other using a vice, observe the accuracy of gluing so that one bar does not go beyond the edges of the other. At this stage of the strength properties of PVA glue will be enough.
Wait for it to complete drying, then fasten the bolt in the middle of the bolt in the drilled hole and tighten the nuts on both sides, after throwing over the washer on both sides.

Third step. This stage requires the presence of a grinding machine or emery paper, with the first way it will be easier and faster. We clamp into the battery drill bolt with a finished drum and grinding a large sandpaper, gradually go to the graininess in beds, thereby giving smooth surface Our drum.

Fourth step. The final assembly stage includes the purification of drums from dust, which was formed in the previous stage, as well as the surface coating with joinery glue for sticking the grinding element. With conventional scissors, cut out a pre-marked piece of sandpaper a piece of sandpaper and stick to the adhesive surface of the drum into the joint, and so that it does not hide the adhesive during drying, secure it with elastic bands for banknotes.

After that. As the glue is finally driving, you can apply homemade in its direct assignment, try the drums in the case.

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.

The most simple manual devices include grinding pads that can wear names: sandblocks, 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 plastic, the working surface of which is covered with a soft material that contributes 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 a reliable attachment 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 in the grinding tool, they 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.

In order for the skin tightly on the drums, the latter have different tension mechanisms. 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 Tension skins.

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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