Vertical grinding machine with their own hands. Grinding machine on wood with your own hands

Nowadays, there are no such surfaces that would not be smooth. Smoothness is achieved due to various grinding devices. Professional equipment costs big money and not everyone can purchase it, besides, such machines have a sufficiently high mass and dimensions.

Fortunately, the skillful hands of our country were adapted to make equipment analogues for such a modest budget. The grinding machine also did not stay aside and was upgraded by manual skill. It is with this homemade machine that we will continue to meet.

There is a huge amount of grinding equipment that makes any wood surfaces are very smooth. It is a box on which a special frame is located with an electric motor (the masters of washing machines are used for homemakes) and the mechanism. The mechanism itself, in turn, includes shafts, pulleys and ribbon from abrasive.

Application area

They are used on all industries where wood is treated. Often, any black products have an uneven and rough surface. Such blanks can not be easy to paint and put it on sale or install anywhere. Therefore, for further wood processing, all its surfaces can be grinding.

Grinding machines are also used to handle sophistication and soles, angles rounding. In addition, the grinding tool gives any surface smooth alignment and calibration.

Varieties of a grinding machine on a tree

Depending on the surface being processed, the following types of grinding machines are distinguished:

Ribbon grinding tool

On this equipment, an abrasive tape is used, which is tensioning with two shafts. These shafts are given due to an asynchronous electric motor. Abrasive tape during wood processing does not sane, and rests on the working plane, which has a small friction coefficient. The tape can be located both horizontally and vertically. Plus this equipment is to process long blanks.

Universal grinding unit

In this case, the machine has two workers grinding surfaces. One tape surface, and the other circular (disk). This versatile machine created for the convenience of working on it. By the way, such equipment will significantly save the budget. In such a device, only one engine is used. Based on this, when working on two working surfaces, the load on the motor will not increase much.

Drum grinding tool

In this case, the abrasive tape is wound on two rollers in a spiral image. Under the rollers there is a tabletop with a smooth surface. The gap between the worktop and the rollers is adjusted for the required distance. With the help of such a machine, you can calibrate the surface of the wood blank.

Disk grinding tool

The workspace of this equipment is an abrasive circle. A circle with velcro is fixed on the electric motor axis to which the abrasive is fixed. After starting the motor, the abrasive circle rotates around its axis, thereby grinding. This type of machine has the ability to regulate the processing speed, and the number of axis turns will not decrease.

On each of the four types of machines, you can perform certain operations. Now that we have an idea of \u200b\u200bhow grinding equipment looks like, it is time to disassemble the design of the machine.

In addition to the above machines, there are also portable grinding machines. And this is not all so as not to spend money on the machines, people came up with grinders from drill, from Bulgarian. The fact is that the nozzles are fixed on these tools and the same grinding is carried out.

Tip: If you still have decided to acquire the factory grinding machine, we decide in advance with the works and loads that your device will undergo in advance, and only then make a purchase. The same applies to homemade tools.

Motor Power Calculation

Important! Before creating any self-made brake, performing grinding functions, it is extremely important to correctly calculate the power of the electrical drive. After all, if the power of the motor is weak or vice versa is strong, then no work you can do.

Calculation of power is carried out according to a special formula, which refers to the category of complex mathematical calculations.

The formula looks like this

P \u003d Q * s * (k + k) * u / 1000 * n

Where every designation means the following

1. q - Means the pressure of the treated wood part on the plane of the abrasive web (N / square centimeter).
2. k is the index of the injection of the abrasive side of the working surface.
3. n is the efficiency of the entire system.
4. K is an indicator of the working plane of the abrasive relative to the part being processed. In priority, the density of the tree and its graininess. The limits of this indicator ranges from 0.2 to 0.6.
5. S is a portion of the processed part that comes into contact with the abrasive, measured in square centimeters.
6. U - the speed of rotation of the abrasive, measured in meters per second.

When you calculate the necessary power of the electrical drive of your future unit, you can safely begin to collect the machine as a whole.

It's time to get acquainted with the design of the homemade machine. Blueprints All four types of equipment can be found in free to view access and download, as well as download all sorts photo schemes. As an example, for visual examination, consider the ribbon grinding tool.

Machine design and its scheme

Any assembly of homemade equipment begins with the design of the bed or the founding of the future machine equipment. This can be done with a metal material, or from wood material. The following dimensions of 500 mm x 180 mm are standardly used, while the thickness should be 2 cm.

After making the base, you can move to the following steps. Asynchronous motor can be installed in several places so that its work is full. Prepare a plane on the window itself or make a platform for a motor that will be attached to the end of the bed. The other side of the bed is designed for the location of the shaft, with a strap pulley and rollers for abrasive tape. The tape itself is installed with a slight tilt. This is done in order for the abrasive smoothly and gently in contact with the workpiece-processed plane.

Tip: Before installing the abrasive strip on the rollers, it is necessary to wind on them a thin strip of rubber. This will reduce the slip of the strip during operation.

As we see from the scheme and drawing, the design of grinding equipment is quite simple. All varieties of these machines are collected by the same scheme.

Tip: In the process of assembling your future aggregate for grinding, it is necessary to observe all the necessary sizes, and it is also necessary to make the calculation of all parameters.

When the design is familiar to us, you can go to the assembly process.

Grinding machine assembly

For the grinding tool assembly, the following elements will be required:

1. Wood board.
2. Wooden bars or metal profile tube.
3. Ball bearings.
4. Electric motor.
5. Rubber belt.
6. Rubber passion.
7. Metal pulley.
8. Self-tapping screws, fasteners.
9. Abrasive element.
10. Working tool (drill, Bulgarian, screwdriver, jigsaw, etc.).
11. Welding machine (if the design of the bed consists entirely of metal).

After we have determined with materials and working tools, you can start assembling all parts and elements into one mechanism. For this, the bed assembly is carried out. It can be metallic (consisting of metal pipes) or from wood (consist of wooden bars and wood massif).

When Stanina is ready

You can proceed to installing the motor. The motor power should be at least 2.5 kW and no more than 3 kW, with the number of engine speed from 1200 to 1500 revolutions per minute. The motor pullee is installed on the motor shaft. The motor is installed on one side of the bed. Often the motors are used from washing Machines used in everyday life.

On the other hand

There is a shaft with bearings, on one side of which pulley is fixed, and on the other side, the abrasive ribbon will be dressed on it. The pulley of the shaft and the engine must be located in the smooth horizontal plane. In the same area there should be a belt tension mechanism.

Next of wood

Or from plywood, or metal is designed by a rack, on which the other rollers and the sandpaper will be placed. There should also be a tension mechanism. In addition, the presence of a working strip, which will produce friction abrasive tape will produce.

On the bed, as a rule, from the end, the launcher is set. The electrical circuit of the machine must be grounded.

After that

How it is done, you can make the first launch and make the equipment setting properly. When the setting is made, the first workpiece is driven and the result of the work is checked. If everything succeeds, it means that you did everything right.

For visual visibility and complete understanding of the entire assembly process, you can download video instructions.

General feedback and summing up

As a rule, on the Internet about this type of equipment only positive feedback. After all, it is true when in everyday life you need to give a single wooden thing a smooth surface, then the presence of grinding tools is indispensable.

Video reviews

Video overview of the self-made grinding machine:

Video overview of the choice of grinding equipment:

Video overview of the belt grinding machine:

Video overview of eccentric grinders:

I have been engaged in the manufacture of knives for several years, and always use 2.5 x 60 cm in its business and 10 x 90 cm. Ribbon grinding machines. For a long time I wanted to buy another one, with a tape width of 5 cm, as it would simplify my work. Since such a purchase would be an invoice, I decided to make it myself.

Problems in the design of the future machine:
It was necessary to overcome three limitations. First, at the place there was no ribbon 10 cm wide, it could be ordered only on the Internet. For me, this option seemed not very acceptable, since there is no greater disappointment than to find that the tape was worn out and demands a replacement, and you have to wait a week or two until a new one will come. Secondly, there was a problem with rollers. I was looking for, but I could not find the ribbon suitable for 10 cm. Thirdly, the motor. For a ribbon grinding machine, a rather powerful electric motor is needed, and I did not want to spend too much to spend on this project. The best option for me was the use of used motor.

Design problems solving:
The first problem with the ribbon found a simple solution. Since the belt 20 x 90 cm was located in a free sale in construction stores at a balanced price, I could do two 10 cm from it. This imposed restrictions on the size of my machine, but due to pricing efficiency, this option was the best. The second problem was solved using a lathe. For this, I looked at the video on the Internet, and I realized that I could make the rollers you need. With the motor, the task has been more comprehensive. In the garage I lay several electric motors, but for some reason I had to refuse them. Finally, I stopped my choice on the old cutting machine for cutting the tile, in which a 6-ampered electric motor was installed. At that time I realized that this power could be not enough. But since the work was at the stage of the experiment, I decided to first achieve the working version of the machine, and the motor can be replaced later. In fact, for a small work, the motor is suitable. But if you are going to produce more intensive grinding on it, I would recommend a 12-ampered minimum.

Tools and materials

Instruments:

• Corner grinding machine with cutting discs.
• Drill and drill.
• Spanners at 11, 12 and 19.
• Lathe.
• Vice.

Materials:

• Electric motor (minimum 6 A, or recommended by 12 A).
• Various bearings.
• Nuts, bolts, washers, retainers of various sizes.
• Metal corner.
• Grinding tape 20 cm.
• 10 cm plots.
• Powerful spring.
• Steel plate 4 x 20 cm.
• Bar 2.5 x 10 x 10 cm made of wood or MDF.

Electromotor for machine

I had a choice of several engines, but the electric motor that stood on a tile cutting machine was a more suitable cover. To some extent, work on the machine was like an experiment, because I was not confident in sufficient motor power. Therefore, I stopped on a modular solution with a frame for a ribbon mechanism as a single element that can be removed and rearranged on a more powerful foundation. The speed of rotation of the motor quite satisfied me, but bothered that 6 and give weak power. After a small test, I saw that for simple work this electric motor approached, but for more intensive work, you need to choose something more powerful. When designing your machine, pay attention to this moment.

As I mentioned, the casing at the electric motor was very suitable, as it allowed to create a vertical machine that will easily move.

First you need to free it up, removing the desktop, saw, protection, pallet for water, leaving only the electric motor. Another advantage of using this motor was a threaded core and a nut for fixing the saw, which made it possible to install the pulley without using the key (what is a key, I will explain later).

Since I had too wide pulley in stock, I decided to use large clamping washers that usually fasten the saw by turning one back side so that a wedge-shaped wedge is. I found that the space between them is too narrow, and to expand it, put the lock washer between them. The advantage in this method is that the clamping washers have a flat edge, which is fixed with a flat edge for simultaneous rotation with the core.

Belt

I used the drive belt 7 x 500 mm. You can use a standard 12 mm, but thin more flexible, and it will load the motor less. He does not need to rotate the grinding wheel.

Construction of a ribbon grinder

The device is simple. The electric motor drives the belt that rotates the "main" pulley of 10 x 5 cm, which leads to the movement of abrasive tape. Another pulley of 8 x 5 cm is located 40 cm above the main and 15 cm at the back and fastened on the bearing. The third 8 x 5 cm pulley rotates on the lever, and acts as a tensioning roller, tightly holding the abrasive ribbon. On the other side, the spruce lever is attached to the frame.

Determining the type of drive

The main issue was to rotate the main pulley directly by the electric motor or using an additional pulley and drive belt. First of all, I chose a belt transmission because I wanted to have the opportunity to replace the engine to more powerful, however, there was another reason. When you produce intensive metal processing, there is a risk to face some problems. The belt transmission in such cases will slip, while the direct drive will create big problems. With a belt, the device will be safer.

Making frame and its installation

It is important to mention that the use of a metal corner as a frame may have both advantages and disadvantages. An obvious advantage is that it is convenient to collect, as a designer in childhood. But the main drawback is strong only in two directions, but weak when twisting. So, it is necessary to take into account this weakness and calculate what torque can be transmitted from pulleys to the frame, and compensate it with additional jumpers.

Cut:
For cutting corner, you can use the hacksaw, but the angular grinding machine with a cutting disk will make it faster. After cut off all the elements, I would recommend to stick all their sharp edges so as not to cut during the assembly. Holes can be drilled using a conventional drill and a lubricating and coolant.

Main roller

The main roller is the most important detail of the project, as it gets a torque from the motor and transmits it to the tape. I used the old sleeve for its attachment, but I recommend using the bearing instead. The bushings cope with their task, but they are constantly overheated and require regular lubrication. Moreover, they can scatter dirty lubricant, which is annoying during operation.

Shaft:
On the side of the shaft there is a carving with a different direction so that the fastening bolts are not unscrewed during rotation. If you doitate one side with a carvings, as I did, leave the one that comes counterclockwise, otherwise you will have to make a touch bolt (I will describe how to do it later) and pin. The main pulley will be put on the cropped edge.

Pulley:
Continuing the topic of reuse, I found my old pulley from another project. Unfortunately, I prepared it under the threaded pin, on which he had to keep, but, in fact, this is not a problem. In this pulley, I made a rectangular cutout. Then, with the help of an angular grinding, I cut the groove at the end of the shaft. Having placing the key in the hole formed by the groove of the shaft and the rectangular neckline cut, I reliably recorded them relative to each other.

Making rollers for grinding machine

I made rollers from several segments of solid rocks with a thickness of 2.5 cm. But you can use MDF, Paneur or other material. When laying the layers, it is necessary to do so that the fibers are perpendicular to, it will give the rollers additional strength and layers will not split.

It is necessary to make three rollers: main roller, upper roller and tensioning roller. The main roller is made of two 13 x 13 cm of pieces with a thickness of 2.5 cm. Upper and tensioning rollers from two pieces of wood with a size of 10 x 10 cm.

Process:
Start from gluing a pair of 13 cm and 10 cm pieces of wood, closing them with clamps. After drying the glue, cut the corners with the help of a tracing saw, then find the center of each part. Secure them in the lathe and process until their dimensions become 5 x 10 cm and 5 x 8 cm.

Upper and tensioning rollers:
Next, you need to install bearings in rollers with a size of 5 x 8 cm. Select a crown or first drill, and drill the recess to the bearing width. The internal bearing ring should rotate freely, so you need to drill a hole passing through the roller through the inner ring of the bearing. This will allow the bolt to pass through with the minimum hole.

Main Roller:
This item is done a little differently. There are no bearings on it, however, if the shaft leaves the roller less than 5 cm, you will need to run the roller in width. Measure the diameter of the shaft and in the center of the roller you need to drill the same hole. Try inserting the shaft, it should hold hard, otherwise the roller will shake.

Basin bonded bolt

Further, two halves should be copped with bolts, you should not rely only on glue. Remember that the heads of the bolts need to be dried in a tree, as the roller rotates in close proximity to the frame.

Tension lever

The lever is made of a metal plate with a size of 10 x 30 x 200 mm with rounded edges. It is necessary to drill quite large holes in it, so I recommend using a drilling machine and a lot of lubrication for this. Most need 4 holes. The first at the point of rotation. It is not in the center of the plank, but by 8 cm from its edge. The second hole will be on the edge, close to the point of rotation. It will serve for fastening the spring. Two additional holes need to be drilled at the opposite end, approximately 5 cm from each other. They should be slightly wider in diameter, as they will be used to configure, which I will tell further.

When all the holes are made, you can fix the shoulder at a vertical corner between the top roller and the basis. The end on which the spring will be attached towards the main roller. He must rotate freely, so I recommend using two nuts for fastening, the main twisting is not completely, and the second is used as a lock nut.

Installation of rollers

The top roller is fixed static, and should be clearly located in the same plane along with the tension roller and the main roller. You can do everything on the eye, but I recommend it all to check the level. You can add a washer for aligning the roller, or if it is not enough - the bolt. They are inserted between the frame and roller.

No need to fully install a tensioner roller. You need to still make a stabilizing device.

Stabilization of ribbon

Wearings for rollers or uneven surfaces can lead to the fact that during operation the abrasive tape will gradually go with them. A stabilizing device is a device on a tensioning roller, which allows it to be at an angle that ensures the retention of the abrasive tape in the center. Its device is much easier than it looks, and consists of a fixing bolt, a bit of the free stroke of the tensioner and an adjusting bolt.

Drilling holes in bolts:
For this purpose, I made a device, in the form of a wedge-shaped cutout in a board, which will help at the time of drilling to hold the bolt in place. You can do this and manually, but I do not recommend.

Fixing bolt.

A fixing bolt is a simple bolt with a hole drilled in it, and which is installed on the bar through a wide hole, which is closer to the point of rotation of the lever. Since it is located between the lever and the roller, its head needs to be drowning so that it does not pin it. The bolt must be fixed as shown in the figure.

Bolt on which the roller is attached

It needs to relax a bit so that the tension roller has a small backlash. But so that it does not spin, you need to make a crown nut. To do this, you just need to make cuts on the edges of the usual nut so that it looks like a crown. In the bolt itself there will be two drilled holes: one for an adjusting bolt, and it will be aligned with a hole with a locking bolt, and another for fixing the crown nut with a pin.

Bolt for setting:
After the tensioning roller is put in its place, you can install a regulating bolt that will pass through the holes of the locking bolt and the bolt on which the tension roller rotates. The system works when you delay the adjusting bolt, forcing the axis of rotation of the tensioning roller to shift the angle of rotation outward, thus forcing the tape tends to the mechanism. Spring from the other end of the lever adjusts the tension in the opposite direction. I recommend consuming the adjusting bolt with locknut, as vibrations can weaken it.

Note: You can add a spring from the back of the tensioning roller, but I did not find the reasons why it should be done. A small advantage will be that thus the roller will have a smaller backlash. But I will add that I did not do this, and I did not have any problems.

Completion of the work on the manufacture of the machine with your own hands

When everything is done, you need to check all the bolts again, and make sure that the stabilization mechanism is assembled correctly. Then you need to turn on the device for the first time, which may be scary. As if you drive a car, where the steering wheel and transmission do not work. I recommend to turn on and off the motor at a very short time so that the machine does not rotate on the full power.

In fact, for me the most difficult part turned out to be a springs. If it is tenting too much, the tape will not be able to rotate ... too weak - and it is impossible to keep it, it flies that in itself dangerous.

Ready!

That's all. You must have a decent ribbon grinding machine of medium power, which, if desired, can be converted to more powerful.

I hope you liked this master class. Thanks for attention.

Grinding equipment is used to finish the details. The machine performs finishing technological operations in the manufacture of wooden and metal products. A significant plus of such a device is the possibility of its self-assembly. The homemade unit is somewhat inferior in performance by factory models, but it will cost much cheaper.

Principle of operation and characteristics of grinding machine

Grinding machines differ from each other with constructive performance and scope. The overall characteristics of the instrument is a similar principle of operation. The working mechanism rotates, and the abrasive material grinds the surface surface.

When choosing finished equipment or making machine, you need to take into account the main characteristics of such equipment:

1. Power. When using the machine at home, it is enough power in 400 W. To perform production tasks, high performance and productivity of the unit will be required - at least 1 kW.
2. The speed of rotation of the working mechanism. The grinding abrasive element per minute performs up to 3000 revolutions per minute. The higher the speed of rotation, the better the quality of processing. Specialists recommend applying units with an indicator of at least 500.
3. Processing area. This parameter is determined based on the scope of application. The greater the width of the drums or grindlets, the larger products will be polished.
4. Dimensions of the device. The dimensions are an important parameter that depends largely on the area of \u200b\u200bthe workshop or the workshop. With independent manufacture, the machine is designed so that after its installation it remains enough space for the placement of instruments, blanks, consumables and other inventory.

Features of different grinding machines

Depending on the configuration of the abrasive assembly, the following types of machines differ.

Ribbon device - Grinder. The machine is equipped with an abrasive ribbon, which over time is engaged and requires periodic replacement. With the help of an aggregate, you can remove the rust layer from the metal, correct the dimensions of the product in some planes, clean and give the shape of wooden parts.

Positive aspects of tape machines:

• versatility;
• small dimensions and low weight;
• the possibility of independent manufacture;
• an adjustment of the length of the tape is provided that allows you to perform grinding and polishing of products of different sizes.

Council. When equipping ribbon grinding equipment, it is better to choose graphite abrasives - they are the most wear-resistant.

Drum Machine Works on the principle of drill. The grinding part of the device rotates from the engine at a speed of about 2000 revolutions per minute. The main purpose is the calibration of flat long blanks. The drum type unit is more complicated in the manufacture, but such a homemade grinding machine on the tree will allow processing rails, shield surfaces from MDF, chipboard, veneered material and wood.

Disk device (Tarld machine). The unit is quite possible to assemble yourself, as it has a simple device. Disk machines are characterized by such features:

• compact dimensions and ease of use in domestic purposes;
• good performance with a powerful electric life;
• the possibility of polishing the billets of cone-shaped, ball and cylindrical shape.

Combined grinding machine - a combination of functions of flat and circular chlorinous equipment. One device is equipped with a grinding circle and abrasive ribbon. This option is optimally suitable for small workshops and arrangements of garages, where the installation of two aggregates at once is problematic.

Homemade Ribbon Grinding Machine

Band-type components

The homemade grinding machine for metal or wood has the following construction:

1. Stanna - base of the machine. The working base of the design is usually done static - screws to the floor. Sometimes the equipment is additionally equipped with wheels for the convenience of moving.
2. Workplace for subsequent placement of the electric motor.
3. Electrical engine. As a rule, the drive is set near the leading roller of the larger diameter.
4. Leading and slave tension rink. With independent manufacture, you can use fir-handled materials from metal or high density wood. To the tape did not roll from the shaft of the diameter of the central part of the roller, it is necessary to make 2 mm less than from the edge. To prevent slippage tape on the drums, it is desirable to wind a thin layer of rubber.
5. The tape tape mechanism consists of a lever and a pressure springs. The lever is fixed to the bed and the slave tension rink.

Important! For steel or wood treatment, tapes are used based on paper whether fabrics. Ribbon width - 5-31 cm, length - from 11 cm, graininess from P-80.

Ribbon Units Production Technology

Homemade belt grinding machines on a tree or metal will be able to make from the following materials:

• the electric motor with the frequency of rotation of the shaft is about 1300-1600 rpm;
• steel pipes at least 2 mm in thickness;
• corners with a cross section of 50 * 50 * 5, 25 * 20 * 1.5 - the amount is determined by the equipment dimensions;
• magnetic stand for fixing metal blanks;
• bearing supports, ball-screw transmissions;
• shafts for fastening tape;
• rail guides.

Sequence of work:

The described type of machine is more suitable for grinding flat metal blanks.

Homemade drum grinding machine

Drum type equipment device

The drum grinding machine refers to the class of calibration models. The main element of the device is a grinding drum, which gives smoothness with wooden surfaces.

Base configuration elements:

• stanina;
• engine;
• planed drum with emery ribbon;
• the feed drum with a tape conveyor;
• mechanism for adjusting the speed of the drum;
• racks for fixing the position of the grinding drum;
• protective casing;
• dust adver

Homemade grinding machine on wood: drawing

Step-by-step instruction for creating a machine

Stage 1. Select an electric motor. The old engine is suitable from the washing machine. From equipment to withdraw pulleys, belt and electric focal. Preference is desirable to give asynchronous single-phase electric motor for 200-300 W, 1500-2000 rpm.

Stage 2. Making a drum. It is suitable for PVC pipe, wooden rings and other healthy items. The drum installation of PVC is as follows:

1. From a plastic tube with a diameter of 10 cm cut off a piece of the desired length.
2. Prepare from wood end plugs with holes in the center of 2 cm.
3. Secure end elements on a pipe with screws.
4. Skip through the hole of the steel rod with a thickness of 15-20 mm.
5. Top of the pipe paste rubber cloth.
6. With the help of a stapler, fix the sandpaper on the drum.

Stage 3. Preparation of the desktop and bed. Case made of wood:

1. Wooden canvas "Cut" on the side panels (2 pcs.), Spacers, details of the working table (base and movable component).
2. Collect and strengthen the design of the cross. The internal strut will additionally execute the role of the adjustment screw.
3. For the ability to control the stroke of the working surface, its movable element is fixed with a piano loop to the base. From the supply of the workpiece, an adjustment screw is installed.

Stage 4.. The assembly is performed in such a sequence:

Stage 5.Fastening protective casing and commissioning.

Grinding devices do it yourself

In addition to the overall machines in everyday life, small practical fixtures for polishing metal products or grinding some parts can be useful. Many of them can be done with their own hands.

Mini-grinders and "polishing" for metal

Homemade masters and lovers of alterations will be useful mini-grinders - the device is used for high-quality stripping surfaces before soldering. Required details can be taken from the old Soviet tape recorder.

On a wooden round plate glue fine-grained sandpaper. This will be the working part of the grinders. To start the machine, you will need a small engine with a shaft diameter of 1.5 mm and a button. To the electric motor solder the start button.

For the power supply, a network adapter is suitable for 7 V. One adapter contact is soldered to the foot of the switch, and the second to the electric motor. Spike places to pour thermoclaim. After drying it, the housing is wrapped with a heat shrink or tape. Finish stage - fixation of the working grinding element.

Homemade disk grinding machine

Disk grinding of small power is useful for wrapped wood fine products. For the machine presented in the photo, a three-phase was used for 90 W, started through the capacitor. The engine with turns of 2750 per minute is connected by a triangle with a starting condenser and reverse. Connections are soldered and hidden in the heat shrink.

The base is fixed on four steel rods - if necessary, it is quickly installed and removed. On the shaft attached mandrel on M14, it is possible to install different nozzles from the grinder.

Safety technique when working on homemade grinding equipment

Performing work on the machine, it is worth holding a number of rules that will help protect themselves and others from possible injuries:

1. It is impossible to concern the working surfaces and movable components.
2. During work, you need to wear safety glasses, so that the particles of the redhead and abrasive do not fall into the eyes.
3. Before you start, you need to check the reliability of the attachment of the shafts, ribbons and disk.
4. It is important to control and check the integrity of the braid of the wires. If the slightest malfunctions of the work must be suspended.
5. It is necessary to use a protective cover. The element slightly narrows the review, but it repeatedly increases the level of security.

Homemade vertical grinding machine: video

For processing various blanks or products, a grinding machine can be used. It is necessary to fulfill the finishing surface processing operation. The large distribution of the machine to the type of type was obtained in the woodworking industry, but can also be applied at home. If necessary, you can create a sandy grinding machine with your own hands for wood. Consider how you can independently make a ribbon grinding machine, and which it happens.

If you wish, you can make a grinding machine for metal with your own hands, which differs from the model designed to process the tree only by the type of abrasive tape installed. Constructive features of the LentoCliffian machine let's call the following moments:

1. The drawing provides for the presence of two drums that stretch the abrasive tape and lead it in motion. One of the drums lead, the second - slave.
2. The drum grinding machine on a tree is created with their own hands when installing an electric motor as a drive. Modern motors may have a different speed of rotation. Homemade models may have interchangeable pulleys and clinorem. Due to the change in the diameter of the accusable pulleys, you can change the frequency of rotation of the abrasive tape.
3. Some models of plane oarsal machines have a tension tension system. Due to this, the grinding of blanks and products is simplified.

In general, it can be said that the emery equipment of the type under consideration has a simple design that will have high reliability.

Principle of operation

A homemade grinding machine for metal may not yield to an industrial version of the execution. Considering the principle of operation of such a device, note the following points:

The processing of billets and parts is carried out by pressed to the abrasive tape when it is moved. The main rotation is transmitted through the drive to the presenter drum, the slave is designed to fix the tape.

Self-made model

With a big desire, you can make your own hands a calibration machine or a plate type of grinding equipment. Homemade versions cost much cheaper, while performance can also be high.

To create a grinding machine will need:

1. Electric motor that creates a rotational movement.
2. Rollers, at the expense of which the tape fixation is ensured.
3. Reliable bed, which becomes the basis.
4. Abrasive tape due to the movement of the surface of the surface.

Considering the features of creating a grinding machine with their own hands, note the following points:

1. The electric motor will be easy to find. It can be removed, for example, with an old washing machine. For home use, a motor operating from a 220 V network can be suitable for a regular network, but there may be many problems with this.
2. The bed is made independently of thin sheet metal or chambers. The connection of individual elements is carried out welding. The screw connection for the creation of the bed is not suitable due to the fact that the vibration can lead to a weakening of the compound.
3. Often the electric motor is connected directly with the leading drum. It should be borne in mind that in this case the electric motor is not protected from sharply increasing load. The slave shaft is installed on the axis and two bearings. From how much it will rotate freely, the efficiency of equipment depends.
4. Cheap shafts can be obtained from chipboard. It should be borne in mind that such variants of the shafts are not designed for greater load.
5. It is possible to eliminate the probability of slipping tape on the drums by applying to the surface of rubber. To do this, you can use the old bike tire.
6. Grinding tape can be purchased in a specialized store.

Today you can find a fairly large number of drawings that can be used to create such equipment. All of them are approximately the same. Before performing the work, it should be determined to determine what sizes will be processed blanks and products.

All materials in any manufacturing, in addition to the manufacture, require even additional and finishing. Bright examples of such treatments can be called grinding and polishing of the product. These two types of mechanical exposure to the surface of the part, bring its appearance to perfection. However, everyone knows how to perform these operations with their hands, takes a lot of time and strength, and the uniformity of processing can ensure except a very experienced master. To facilitate this kind of work, a person came up with various adaptations and mechanisms to help. Some of them will be discussed further.

General purpose and types of machines

The machine is designed for the final processing of parts and billets from different materials by affecting them with an abrasive or diamond spraying. The machine, its component mechanisms and fixtures allow you to observe the accuracy of size and shape, and also provide the creation of an ideal surface of the part or blank.

With the help of the machine, you can handle flat parts, surfaces outside and inside, details of various geometric shapes, grinding or polishing the thread and teeth of gear wheels. In its characteristics, grinding machines are divided into:

• Circular sloping.
• Intrahelifing.
• Enchanted grinding.
• FlatShelipoval.
• Special machines (for grinding threads, gear wheels).

Grinding process

Grinding is the process of removing the upper layer from the surface of the processed part using the use of abrasives or diamond crumbs. They are assembled in the total mass on the working surface and is bonded by the binder. They form a grinding wheel or ribbon as a result.

During the operation of the abrasive surface there is a circular motion using an electric motor. When contacting the surface of the blank with an abrasive and the processing process takes place. There is a commodity opinion that grinding abrasives is friction treatment. However, it is incorrect.

Each abrasive particle has sharp edges when touched with the material (metal, plastic, wood, stone) works like a cutting tool and removes chips, how to say the cutter or drill. If we take into account the considerable speed of rotation of grinding wheels, as well as the occurrence of chips, as the grinding product, it is necessary to take into account the possibility of injury to this chips.

Safety measures during work

When working on the machine, the following safety regulations are required:

The need for production and in everyday life

Today, grinding machines are used constantly in production shops. Depending on the scale of production, both one machine can be installed, and all its varieties in complexity and dimensions.

However, in everyday life, there is always use in everyday life. In some - in the garage there is a vertical emery metal for processing metal. Others - in the workshop are installed several different grinding machines on the tree. Thirdly - in possession is a universal, combined machine. There are power tools for manual grinding: drum type, lintishlyphic, band saw, small machines or large machines. And they are all in demand.

The market presents a fairly wide range of all sorts of similar equipment from many manufacturers. And they are quite acceptable prices. But these are general-purpose machines. And if a person is engaged in his own business, or he has a hobby, then a special specialization machine needs. Here the price is already growing several times.

For this reason, or on the basis of our own desires, many craftsmen make homemade. Basically for wood processing, plastic and metal, less often for cutting and grinding stone. And, in general, it is correct. After all, even a simple sharpening of kitchen knives is easier and faster to do on the machine than manually using donel. The benefit of creating their own hands a homemade machine for a tree has a completely non-suty design.

The grinding machine with their own hands for the tree is completely simple. In the people, it is also called simply - emery.

The main component of the element is the engine. Surely many in the farm there is an old washing machine. Its motor for this purpose is quite suitable. If not, the new engine on the market will cost quite expensive, but on any flea market you can find used in working condition. The electric motor must be strong from 750 W to 2 kW, not high-speed from 1500 to 3000 rpm, if three-phase, then you can always adapt under 220 V. Thick plywood, self-tapping screws, PVA glue, well, and tool, of course.

The task is simple: make a hard disk on which sandpaper sticks. To do this, draw a circle with a diameter of 150-170 mm on the plywood, if the plywood is sufficient thickness to hide the clamping nut, just one billet. If not, we glue the two identical billets with PVA glue. The engine spindle nut must be recessed into the disk flush with its work plane.

From the same plywood 15-24 mm, you need to make several parts:

• The bed to which the engine will be mounted.
• Table of feeding with guides to change the angle of inclination.
• Disc defense design.
• The base for fastening the entire machine to the workbench.

The protection for the disk can be made in the form of arches with straight corners or truncated. She, like the table of filing, is attached to the bed. From additional devices can be installed on the stop of the flexibility of the stop-transport, which will allow to feed the workpiece under a fixed, horizontal angle.

Giving tribute to aesthetics, preferably every detail before assembly to polish. But it is, if desired, but with the table of filing it must be done carefully. The smooth surface will provide a uniform and continuous movement of the part along the working surface of the disk.

The appointment of this machine opens in its very name - plane oxylphous, that is, for grinding flat surfaces of parts and blanks. It can be a disk, drum (by the type of flights) or tape. In this case, its working surface can be located vertically, horizontally or regulated.

Separate designs of machine tools are made fully adjustable. But it is individually. Homemade cars each makes it to work more convenient. Constructions with full adjustment make harder. They are regulated by clamping drum or tape, that is, in other words, there is the possibility of fixed movement of the working surface along the vertical axis. And the girlfriend has a movement mechanism in two directions, like a carriage of the cutter holder on the lathe.

According to the verbal description, it is difficult to imagine how it looks like. And the more difficult to understand how it works. But today we have the Internet. There you can find rollers where the craftsmen share their experiences, explain in detail and show how to make such equipment. Detailed drawings and schemes with accurate sizes and directions are provided which material to use for the assembly. In general, if there are difficulties with independent design, you can always just make someone's copy.

This machine was invented for processing long details. Abrasive tape has basically fastened cloth fastened in the ring. Dimensions exist different. It is driven by the same electric motor with similar characteristics. But some craftsmen replace the drill engine. A good drill is a universal tool in many parameters. However, such a replacement is more relevant for a small size of tabletops, as a rule, models are used.

How is the ribbon grinder going with her own hands? The tape is tensioning between two shafts or drum rollers. One of which is the presenter (it is attached to the engine spindle), and the second is the slave (it ensures the tension of the grinding tape). For the tape did not score from the drums, the washers-stops are attached to their ends. It turns out something like a textile coil. With minor skews, the tape wear occurs faster than the edges of the ribbon rubbing on the lock washers are destroyed. So this idea is quite viable and justifies itself.

Also between the drums from the back of the tape, the support screen is installed, which provides a dense clamp of the entire plane of the billet to the surface of the tape. To reduce the strength of friction, the screen is thoroughly polished. It is possible to make it from both light metal and solid wood.

Leading roller must be cut or made from rigid rubber. This will ensure the impossibility of slipping the tape over the surface of the roller. The whole design can be positioned differently: vertically, horizontally or at an angle. To the shared bed, as well as on all similar machines, the girlfriend is fastened, at an angle of 90 degrees, or adjustable. The distance between the ribbon and the edge of the girlfriend should not be more than 3 mm. Due to the fact that the tape break is not able to cause significant injuries, protection is made only to remove grinding products.

Homemade Grinder

Grinder is a high-speed lintishlyphic machine or a universal machine. Working surfaces - disk and tape. The engine is used as on all machines. And high speed is achieved when using different diameter pulleys. The pulley of the large diameter is mounted on the engine spindle and is the leading. Small pulley - stretch.

On the universal machine on the spindle is also attached to the disk. You can install an additional transmitting roller, which will be skilled fasteners. It is done to quickly shift abrasive tape.

From the remaining grinding machines, Grinder is characterized by processing speed and versatility. Using replaceable ribbons for different materials, you can quickly process the surfaces of even high-alloy steel.