Before you start repairing the rails, you need to find out how much it will cost. If you do not use a third party, then you only need to calculate the cost of consumables. In this case, the most expensive repair is considered Grinding. In order to level the bed, you will need to purchase several disks. The number depends on the extent of the damage. But if you order the service from private companies, the cost will be estimated depending on the degree of damage. In this case, the deeper is the deformation, the more expensive is the repair.
Price by degree of damage (may change, depending on the rate):
|Machine type||Wear to 0,3 mm.||Wear to 0,5mm.||Up to 1mm wear.|
|Light||28 000р.||33 000р.||37 000р.|
|Average||35 000р.||39 000р.||46 000р.|
|Heavy||57 000р.||70 000р.||83 000р.|
In addition, you must take into account the fact that some damage cannot be detected with the naked eye. Therefore, private organizations can offer to identify the depth of the deformation with special equipment.
Grinding the bed of a lathe
Grinding the bed of a lathe Citation
Again I see a ruler smaller in area and length than the bed. it is possible? For example, there is a table 305×135 and a steel ruler 397×39. It is enough to level the plane of the table? hole in the center on several dozens of lathes is possible, but, of course, it is longer to work on the bed of the lathe
I see, thank you, I will try. For some reason I thought that the whole part should fit on the inspection surface of course this is not possible in the case of a large bed
while we’re on the subject. another video about scraping, american. kind of a beginner’s tutorial
if still relevant, google the right query and voila _https://rapidshare.com/files/155665365/Machine_Tool_Reconditioning_and_Applications_of_Hand_Scraping.djvu
hmm. no one downloaded?? because it’s loaded. Maybe you can put it in the library?
Grinding the bed of a lathe Grinding the bed of a lathe thank you. got excited quickly there’s no cheese there either. others. and in the files. you can upload it?? it’s like they give a hectare to people who want it my speed is fast. ♪ I’ll take it for a spin ♪
Grinding the bed of a lathe. I downloaded it at least 20 times. I’m sorry for the inconvenience. good book. Grinding the bed of a lathe
I have not invented anything new (I put it on the jacks, on the bed with duct tape, on the skids with antifriction metal polymer)
And the cold welding will go, which in auto stores are? You also need to restore the machines. Grinding the bed of a lathe
https://www.desti.It’s just me, or does it not open at all? Grinding the bed of the lathe
Grinding the bed of the lathe Gentlemen, what is the accuracy of the angle of inclination of the grinding stone and what is the technology for setting and checking this angle? Grinding the bed of a lathe
Angle accuracy. preferably as good as possible so as to fit the mating parts less frequently If you are planning to use overlays/composite on the reciprocating ones, don’t really bother. You can check the angle with a feeler gauge, you can check the contact trace.
desti, and how do you practically set the angle?
It was not. Interesting. If grinding on the end face, set two angles, if lateral, then one angle, which is easier. Grinding the bed of the lathe machine desti, The idea is not new, but the thought process is correct. I have a similar machine, also made on his knee, but with an engineering approach. Works great! As a base I take the slides of the tailstock as almost not worn and bring the geometry of the table to its factory parameters without removing the front headstock of the machine. https://s45.radikal.ru/i107/1209/31/d007e19b4212.jpg Grinding the bed of a lathe Hello forum users. I’m new here but want to join your ranks. Bought (saved from scrap) machine tool IT-1M. the bed has a strong workout (visible to the naked eye from the side). Need to grind. There’s just one thing. the frame has a recess near the chuck. What surfaces to take as a base. to sand the working surfaces over the entire length. For grinding will make the carriage. Grinding bed lathe
Not worn, but you don’t have them. So first you need to prepare the surfaces on which the fixture will ride. And this levels, scrapers, rulers. You have it?
PHOENIX LLC performs grinding of bed guides on a Waldrich Coburg machine
We can grind all kinds of machine beds. Examples of these are:
- bed guides for lathes with a cross-sectional axis up to 6 m (1М63, 1М65, 16К20, 16М30, 1А983, etc.). д.);
- Bed guides for milling machines (6T13, 6K81, 6T83, etc.). д.);
- Guides of grinding machine beds (3L722, 3B724, etc.). д.);
- Bars, consoles, racks, tables, etc.
Average production time of 1 set. 5 working days.
Find out the cost of sanding (sanding price)
Check our price list for grinding machines. for grinding at us will pleasantly surprise you! for bed grinding, rack and carriage groups, etc.д.
The maximum parameters of the machined products:
Unit is designed for grinding of guideways of carriages of machines 1K62, 16K20, 1K62D, MK6046, 1A62, 1M63, 164, 165 and other machines by the corresponding standard size.
The design of the mechanism allows, without removing the machine from its foundation, to restore the machining accuracy after repairs to the original machine data, thus significantly reducing repair costs. The mechanism of the two grinding heads included in the delivery set enables continuous adjustment to the grinding of the prism surfaces or upper and lower flat guides. Carriage, tailstock are removed from the machine in advance Moving along the base frame manually.
|Grinding cup diameter, mm||125|
|Seating diameter, mm||32|
|Drive power, kW||0,55|
We accept orders for machining frames in the customer’s workshop. a representative will visit the place of work.
For information about and terms of execution of orders on grinding of guides please contact tel.:
Quality control when grinding frames
We take great care over the quality of all our services. No exception to the grinding beds.
Once a week the bed geometry is checked at random on the autocollimator. Also, the quality of the sanding is checked for roughness with a Hommel-Etamic T1000 profile gauge, if necessary.
Quality inspection photos of the bed rail grinding
Roughness measurements Check the geometry of the bed with the autocollimator
Description of the lathe
The woodturning lathe has one limiting function: it can only turn workpieces out of wood. A carpenter, on the other hand, is able to turn an ordinary piece of wood into a finished piece of work, for example:
Unlike other woodworking machines, which are used only for some intermediate stages, the lathe is suitable for all operations, from preprocessing to polishing. Necessary tools are tubular (V or cylindrical) and flat scrapers, chisels, chisels of various shapes and sizes. The machine rotates the workpiece, and the hand of the craftsman controls the movement of the cutter. Depending on what kind of workpiece is to be made, there are two ways of holding the workpiece.
In the first case, the wood workpiece is mounted horizontally between the front and back faces. The second method takes into account the fact that the wood turner fixes the installation of the workpiece only in the front “headstock” with a faceplate or chuck. If you are new to this machine, it makes sense to start with the first method.
Electronically adjustable lathe (complete set):
- flute chisel,
- chisel-maisel (2 mm),
- semicircular cutter,
- beveled chisel,
- Half-round chisel. for finishing a shaped surface,
- a flute chisel (raker). for roughing.
The whole machine is mounted on a base made of aluminum, cast iron or profiled beams or two steel bars. The wood turner places the headstock on one side of the frame, and an electric motor (0.5-1.5 horsepower) is located inside it. It rotates the spindle with its Morse taper, a drive center (with one blade and 2, 3 or 4 knives), faceplate or chuck is inserted as required. The tailstock is located on the opposite side of the machine, and its center presses the workpiece, securing it in a horizontal position.
Undercarriage that swivels to either side
, Is located as close to the headstock as possible, guides and supports the cutter.
On machines with manual adjustment, the frequency (speed) of movement is capable of being switched by a gearbox lever with speeds ranging from 450 to 2,000 rpm. It contains the pulleys with bearings.
The much more complex versions of these machines have an electronic variator in place of a gearbox which permits infinite adjustment of the advance speed.
Workpiece clamping devices
Workpieces are fastened in place using universal fixtures such as centers, bushings and arbors. Centers are used for workpieces longer than three meters with a base surface in the form of a center hole. Depending on the design, they are divided into rotating and stationary, installed in the quill of the front and rear headstock. Taper angle of the front center depends on the type of work. 60° for normal operations, 90° for heavy-duty applications. Material is tool steel with hardness HRC 55-58.
The main advantage of scraping is high wear resistance of the machined surface. The lack of abrasive particles has a positive impact on the structural integrity of the metal. The machined surface has a low coefficient of friction, which increases the service life of the lubricants.
Scraping quality can be detected without the need for expensive measuring equipment. The indicator in this case will be a regular paint, by the number of spots which can be said about the degree of treatment of the plane.
Portable machine tool for grinding of the lathe bed guides
Mo 142907 Class 67 a, 13CCRICTION OF ORIGIN to the AUTHOR’S CERTIFICATE 1 odgggggga L “S. Vladimirov & L, I. Subbotin TRANSMISSION STANDARD FOR SLIMMING THE RULING STANDARD OF THE TREADLING CENTRE, written on October 28, 1960. for.a 683901/25 to the Committee on Inventions and Discoveries under the USSR Council of Ministers published in the Invention Bulletin Ъ 22 for 1961Removable machines for grinding the bed slides of a lathe bed with supporting rotary and adjustable grinding head base plate, based on the low-wear rear headstock guides and equipped with a mechanism for forced reciprocating motion along the bed are known. But it is not possible to machine the whole length of the guideways on these machines.In the described machine for processing the guide along its full length by way of grinding wheel exit beyond the bed in its extreme positions monorail, fixed under the base plate for freely suspended to it on rollers, is used. This load is moved under the action of the end stops in the direction opposite to the motion of the portable machine, changing the position of its center of gravity. Instead of load it can be monorail suspended on rollers by spring-loaded ledge resting on lower bed guides.Fig. 1 shows the described machine tool; Fig. 3 shows a monorail with a laminated belt. 2. section along A. A in Fig. 1; Fig. 3 in the mounting of the spring-loaded bar.Portable machine for grinding lathe bed guides consists of a base plate 1, based through a flat 2 and prismatic 3 bars on the guides 4 and 5 of the repaired lathe b, designed to move the tailstock or lunette; mechanism 7 of forced movement; monorail 8, fixed under the bearing plate 1; weight 9, freely suspended on rollers 10 to the monorail 8 and moved by the action of stops 11; and grinding head 2, rotatable in the vertical plane for working at an angle and removable in the transverse direction in the slot 13 of the plate 1.M 142907For grinding the guides 14 or 15 of the machine b electric motor Y of the head 12 is switched on, the grinding wheel 17 is brought into contact, with the guide 14 or 15 to be processed, after which the electric motor 18 of the mechanism 7 is switched on, driving through the gearbox 4 the sprocket 20. When whipping the sleeve-roller chain 21 sprockets 20 and 22, the plate 1 together with the head 12 moves along the guide 4 and 5, and grinding wheel 17 makes the processing of guides 14 or 15. In one of the outermost positions, such as right, the grinding wheel 17 extends beyond the bed 23, machine b, and the load 9 rests on the right stop 11 and moves along the monorail 8 to the left, changing the center of gravity of the portable machine, balancing the weight of plate 1 with the head 12 and allowing the wheel 17 to process the end section 24 of the guide 14 or 15. In a similar way the grinding is performed in the left extreme position of the wheel 17, only the load 9 in this case moves to the right.Instead of load 9 to the monorail 8 on the portable machine a spring-loaded plank 25 holding the plate 1 in extreme positions can be suspended on rollers 10. The spring 2b, mounted on the rod 27, presses the bar 25 to the bearing surfaces 28 and 29 of the guides 4 and 5. The described machine allows to get rid of hard manual labor for scraping the lathe bed guides to eliminate their wear, to increase productivity and improve the quality of lathe repair.Subject of the invention1, Portable machine tool for grinding the bed guides of a lathe machine with a supporting rotary and adjustable grinding head base plate, based on the low-wear rear headstock guides and equipped with a mechanism for forced reciprocating motion along the bed, the invention differs in that, in order to provide treatment of the guide along its entire length by outputting the grinding wheel beyond the bed in its extreme positions, the monorail fixed under the support plate for freely suspended load on rollers, moved under the influence of end stops in the direction opposite to the motion of the portable machine, and thus changing its center of gravity is applied.2. The portable machine tool according to p. 1, distinguished by the fact that instead of the load a spring-loaded bar is suspended on rollers on the monorail, resting on the lower guides of the bed.142907 the remover B. А. Brodsky ormat bum. 70 X 108/1 vTirazh 1050e for invention of the USSR Council of Ministers 0,26 ed. л.Price 5 kop 12.1-62 г. o to c ak. 44 Committee at the So BTI and o 2/6. centre, M. Cherkassky per.,Mos ipography of the Central Bureau of Inventions and Discoveries under the Council of Ministers of the GSSR, Moscow, Petrovka. 14.Editor T. ф. Zagrebelaya Technred A. А. Kamyshnikova Proofreader G. Kudryavtse Look
Grinding the bed of a lathe with his own hands
Lathes are used for machining cylindrical shaped parts. They include many varieties, which differ in size and availability of additional functions. Such industrial models as the lathe 16K20 is very common and widely used in modern industry. In order for the device to function properly, you need to know all the features of its parts.
The lathe bed serves to secure almost all the mechanisms and assemblies that are used on this equipment. It is often cast in cast iron to get a solid and sturdy structure that could last a long time. This is due to the fact that it will be exposed to high loads. Do not forget about the stability, because the massive large models use a lot of energy during the work and the base must well resist the loads.
The machine frame and its guides are bolted to pedestals or twin legs. If the machine is short, two uprights are used. The longer it is, the more racks may be needed. Most bollards have doors, allowing them to be used as drawers. The guideways must be treated very carefully and protected from damage. Tools, workpieces and other items should not be left on them. If metal objects must nevertheless be placed on them, a wooden base must be placed beforehand. For better care, it is necessary to wipe and lubricate the machine bed before each use. When the work is done, remove chips, dirt and other foreign matter.
The design of the machine bed may vary from one model to another, since it is designed to accommodate all the components in the machine in a comfortable and safe manner. But the basics remain the same in many cases, so we can review the basics using popular models as examples.
- Longitudinal rib;
- Longitudinal rib;
- The cross rib, which serves to connect the longitudinal ribs;
- Prismatic guides for longitudinal ribs;
- Flat guideways that serve to set the tailstock and headstock and to move the slide along them;
It is worth noting that the bed guides can have different shapes. A mandatory rule of thumb is to maintain a parallel arrangement, so that everything must be equidistant from the center axis. This requires precise milling or planing. This is followed by a grinding and scraping operation. All this ensures precise machining of workpieces and also eliminates problems with slide movement and the occurrence of jolts.
- The metal lathe bed, which is shown in figure a under the numbers 1 and 2, has a trapezoidal cross-section of the guides. In this case the main emphasis is on the large bearing surface. They have great wear resistance, allowing them to remain accurate for a long time. At the same time, a lot of effort is required to move the slide on them, especially if it is skewed.
- Figure b shows the bed with a flat rectangular section of the guideways. Unlike the previous one, they have two stiffeners instead of one, which makes them stronger.
- Figure c shows the bed with the triangular rails. Given that it has a small footprint, it is very difficult to work with heavy weights, and therefore this type is used mainly for small machines.
- Picture d shows a bed with a triangular cross section and a supporting plane. It is also used here for smaller machines.
If the bed is for a heavy machine tool, it has not only a bigger cross section, but also more bending strength. One of the most common is the type shown in figure d. Here the carriage rests on the prism at the front and on the plane at the back To prevent it from tipping over, it is held by the plane In the guidance task the prism plays the main role, especially as it absorbs most of the cutting pressure.
If there is a recess on the base near the headstock, it is used for machining workpieces with large diameters. If workpieces with a radius smaller than the height of the centers are machined, the recess is covered with a special bridge.
Shaping the bed of the lathe is a technological process during which the bed is aligned for fastening the feed box with a frame level. This makes it possible to establish the perpendicularity of the support and aprons mounting surface to the feeder frame later on.
- The first thing to do is to put the bed on a firm foundation and check the longitudinal direction with a spirit level along the surface, and the transverse direction with a frame level. Allowable deviations are within 0.02 mm per 1 meter of the workpiece length.
- Check the upper surfaces of the guide, first on one side, using a straight edge against the paint. During this process, it is advisable to periodically check the curvature of the guides.
- Then the surface of the second guideway is roughened. The maximum deviation tolerance here remains the same 0,02 mm per 1 meter of the product length.
Grinding the bed of the lathe consists of the following procedures:
- It is necessary to clean and file away any burrs or dents in the surface;
- The bed is placed on the table of the longitudinal planer and securely fastened there;
- Next comes the inspection of the curvature of the guides, which is made by laying on the bridge of the tailstock level;
- During the installation of the bed, there is a slight deflection of the workpiece which must be corrected by touching the table as closely as possible;
- Re-check the curvature of the rails so that the results are the same as they were before fixing;
- Then proceed to grind all contact surfaces on the workpiece. This procedure is carried out with the cup shape wheel end. its grit size should be K3 46 or KC 46 and its hardness should be CM1K.
Introducing the DPSS-1M unit for grinding slideways bed.
Unit is designed for grinding of slideways of machine tools 1K62, 16K20, 1K62D, MK6046, 1A62, 1M63, 164, 165 and other machines of appropriate dimension.
The design of the mechanism allows, without removing the machine from the basement, to restore the accuracy of machining after the repair to the original data of the machine, what significantly reduces the cost of repairs. Mechanism of the two included grinding heads, allows you to set up consistently for grinding the surfaces of the prism or upper and lower flat guides. Carriage, tailstock Remove from machine in advance Moving across the base frame manually.
Hollbrook 4. Hand scraping a lathe bed in under 40 hrs
|Grinding cup diameter, mm||125|
|Installation diameter, mm||32|
|Drive power, kW||0,55|
We accept orders for processing bed in the customer’s workshop departure of a representative at the place of work.
Grinding the bed of the lathe
Lathes are used for machining cylindrical parts. They include many varieties that differ in size and the presence of additional functions. Industrial models such as, lathe 16K20 is very common and widely used in modern industry. In order for the device to function properly, you need to know all the features of its parts.
Lathe bed serves to secure almost all of the mechanisms and components that are used on this machine. Often it is cast in cast iron to get a solid and strong structure that could last a long time. This is due to the fact that it will be subjected to high loads. Stability is also an issue, as the massive large models use enormous energy during work and the base must resist the loads well.
The machine frame and its guides are bolted to pedestals or twin legs. If the machine is short, two uprights should be used. The longer it is, the more racks may be needed. Most bollards have doors, allowing them to be used as drawers. The rails should be treated very carefully and guarded against the possibility of damage. It is not desirable to leave tools, workpieces and other products on them. If, however, metal objects must be placed on them, a wooden pad should be laid beforehand. For better care, it is necessary to wipe and lubricate the base before each use. When the work is complete, shavings, dirt, and other unnecessary items should be removed from it.
Design features of the bed of metal lathes can vary depending on the specific model, as they are designed for convenient and safe placement of all units of equipment. But the basics remain the same in many cases, so we can look at the basics using popular models as examples.
- Longitudinal rib;
- A longitudinal rib;
- Transverse rib, which serves to connect the longitudinal ribs;
- Prismatic guides of longitudinal ribs;
- Flat guideways that serve to position the tailstock and headstock and to move the slide along them;
It is worth noting that the bed guides can have different cross sections. The obligatory rule is to maintain a parallel arrangement, so that everything must be equidistant from the axis of the centers. This requires precision milling or planing. This is followed by a grinding and scraping operation. All of these features assure precise machining of the workpieces and avoid problems with slide movements and jolts.
- Metal lathe bed, which is shown in Figure “a” under the numbers 1 and 2, has a trapezoidal section of the guides. In this case the main emphasis is on the large support surface. They have a high wear resistance, which allows them to remain accurate for a long time. At the same time, a lot of effort is required to move the slide on these, especially if it is skewed.
- Picture b shows the bed with a flat rectangular section guideway. Unlike the previous one, they have two ribs instead of one, which makes them stronger.
- Picture c shows a bed with a triangular guide. Given the relatively small support surface, it is difficult to work with heavy weights, so this type is mainly used on small machines.
- D” shows the bed with a triangular section and a support plane. In this case it is also used for small machine tools.
If the bed is designed for a heavy machine, it has not only a large cross-section, but also greater bending resistance. One of the most common is the type shown in picture “d”. Here the carriage rests on the prism at the front and on the plane at the back To prevent it from tipping over, it is held by the plane In the directional task, the prism plays the main role, especially since it absorbs most of the pressure exerted by the cutter.
If there is a recess in the base near the headstock, it is used for machining workpieces with a large diameter. If workpieces with a radius smaller than the headstock height are machined, the recess is covered by a special bridge.
Shaping the bed of the lathe is a technological process during which the bed is aligned to secure the feed box with a frame level. This makes it possible to easily establish the perpendicularity of the mounting surface of the slide and the apron to the feed box in the future.
- Firstly place the frame on a rigid base and check the longitudinal direction with a spirit level along the surface, and the transverse direction with a frame level. The permissible deviations are no more than 0,02 mm per 1 meter of the product length.
- Shape the upper surfaces of the guide, first on one side, using a ruler on the paint. During this process, it is advisable to periodically check the curvature of the rails.
- Then the surface of the second guideway is scraped. The maximum tolerance of deviations here remains the same 0,02 mm per 1 meter of the product length.
Grinding the bed of the lathe consists of the following procedures:
- It is necessary to make scraping and filing of any burrs and dents on the surface;
- The frame is placed on the table of the longitudinal-splitting machine and securely fastened there;
- Next comes the inspection of the curvature of the guides, which is made by laying a level on the bridge of the tailstock;
- During the installation of the bed, a slight deflection of the product is obtained, which should be corrected by contacting as closely as possible with the table;
- Re-check the curvature of the guides, so that the results are the same as they were before fixing;
- Only after that proceed to grinding all contact surfaces of the product. The procedure is carried out by means of a cup-shaped wheel face. Its grit size should be K3 46 or KC 46 and its hardness should correspond to SM1K.
We present you the DPSS-1M unit for grinding of the bed guides.
Unit is designed for grinding of slideways of machine beds 1K62, 16K20, 1K62D, MK6046, 1A62, 1M63, 164, 165 and other machines of the appropriate size.
The design of the mechanism makes it possible, without removing the machine from its foundation, to restore the machining accuracy after repairs to the original machine data, thus significantly reducing repair costs. The mechanism of the two included grinding heads, allows successive adjustment for grinding of the prism surfaces or upper and lower flat guides. Carriage, tailstock are removed from the machine in advance.
|Diameter of grinding cup, mm||125|
|Fitting diameter, mm||32|
|Drive power, kW||0,55|
We take orders for bed machining at customer’s shops. on-site visit of a representative.