CN208067761U - A kind of micro- texture guide rail of combination - Google Patents
A kind of micro- texture guide rail of combination Download PDFInfo
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- CN208067761U CN208067761U CN201721816997.3U CN201721816997U CN208067761U CN 208067761 U CN208067761 U CN 208067761U CN 201721816997 U CN201721816997 U CN 201721816997U CN 208067761 U CN208067761 U CN 208067761U
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Abstract
The utility model discloses a kind of micro- texture guide rails of combination, are related to machine tool guideway technical field of surface.The utility model is in the micro- texture of combination that guide rail surface is distributed, and the micro- texture of combination is that dimple cheats pattern and very low power pattern, and the very low power pattern cheats the very low power of pattern to be machined in dimple hole pattern array along the single dimple of connection in rail length direction.The utility model solves the creeping phenomenon of guide rail, improves greasy property, while improving guide rail wearability, can effectively extend the guide rail service life, improve comprehensive performance.
Description
Technical field
The utility model is related to a kind of machine tool guideway process for treating surface, through Laser Micro-Machining and polishing process, in lathe
Guide rail surface forms the composite topography in very low power connection dimple hole, and in particular to a kind of micro- texture guide rail technology in surface is produced in lathe
Application in industry.
Technical background
With the development of science and technology complex precise part demand amount dramatically increases, ground of the precision machine tool in machinery manufacturing industry
Position is very important.Machine tool guideway is complete machine key components, and performance directly influences machining accuracy and lathe service life.Lathe
Guide rail common deficiency includes that guide rail contact area is big, and film distribution is uneven, and adhesive wear increases guide pass and is in boundary lubrication shape
State, abrasion aggravation dynamic pressure or hydrostatic slideway surface, oil film is again blocked up, and guide rail floats excessively high, surface to be machined roughness increase, essence
Degree reduces in lubricating oil and is mixed into dust or chip, causes the scratch of guide pass and wears since lubricating oil is unevenly distributed, friction
Power, which mutates, occurs creeping phenomenon.Guide rail surface roughness exception, existing wear particle, generation adhesion, guide rail moment open
Dynamic wait can all cause to creep, but after all, the suddenly change of frictional force is the principal element of creeping phenomenon.
Chinese patent CN102678751A discloses a kind of rail plate of the micro- hole oil packet of matrix surface band, in guide rail matrix
There is equally distributed micro- hole oil packet on surface, and one layer of soft material is then bonded on guide rail matrix.Although guide rail lubricant effect improves,
But the plastic deformation that soft material can occur under the effect of the load of workbench and sliding block, it will have a direct impact on the table of part to be processed
Face quality and soft material and being bonded for guide rail basis material are highly difficult, and soft material is easy to fall off, and since micro- hole is not connected to,
Soft material fall off after oil coating takes out of, cannot timely repairing, oil storage function lose, oil film is worn after being worn through to be aggravated.
Chinese patent CN104551701A discloses a kind of compound micro- texture guide rail, orderly divides in the processing of guide rail working surface
The compound pattern that the dimple hole of cloth is constituted with dimpling shoulder.Although the presence of dimpling shoulder reduces confficient of static friction and kinematics and static friction
Coefficient difference inhibits creeping phenomenon to a certain extent, but dimpling shoulder so that there are gaps to lead to dimple intracavitary between lathe and guide rail
Oil storage be difficult to be carried over to form complete lubricating film, do not have the meaning of practical solution technical problem, make working surface instead
It is easy to wear.In addition the yield rate that recess but also the single texture with raised pattern had not only been carried during actual processing is low, processing
Difficulty is big, of high cost.
To reduce guide rail contact area, texture difficulty of processing is reduced, the flowing of lubricating oil is promoted, is cheated in time to oil-poor dimple
Make-up oil effectively plays oil storage, the oil supply function in dimple hole, elastic hydrodynamic lubrication effect is persistently generated, to press down
Creeping phenomenon processed.The utility model processes equally distributed dimple hole, and connection using laser in quiet guide rail working surface
The very low power in dimple hole.Dimple hole oil storage and generation hydrodynamic lubrication effect in lathe and guide rail relative movement so that profit
Lubricating oil is carried over the oil film to form uniform thickness；Very low power is dimple hole supplement in time in lathe and guide rail relative movement
Lubricating oil forms the pumping effect in similar mechanical seal field, avoids leading to film distribution unevenness even because dimple hole is oil-poor
It is worn out that working surface is made to wear, creeping phenomenon aggravation.
Invention content
The utility model mainly for guide rail working surface it is easy to wear and generate creeping phenomenon, and with compound pattern list
A kind of the problem of one texture difficulty is processed, and part pattern texture function is restricted, it is proposed that micro- texture guide rail of combination.
The technical solution adopted in the utility model is that the combination of distribution rule is processed in guide rail carrying and relative motion surface
Micro- texture, the micro- texture of the combination be dimple cheat pattern and with very low power pattern, the very low power pattern is to cheat pattern in dimple
Array is machined with the very low power that pattern is cheated along the single dimple of connection in rail length direction.
In said program, the geometric parameter of dimple hole pattern is：Pit diameter d=20-500um, pit depth h=
1- 50um, pattern spacing k1=100-2000um, pattern area ratio/occupancy ratio are S1=1%-40%, and the area ratio/occupancy ratio is
The area ratio of the sum of the area in dimple hole and the shared guide rail surface of dimple hole texture distribution.To it is processed go out guide rail test,
Dimple hole pattern area ratio/occupancy ratio S1=6-16% inhibits best results of creeping.The very low power is straight line type groove or arc line type
The geometric parameter of slot, very low power pattern is：Groove width b=20-300um, gash depth h2<Micro- pit depth.
Realize that the utility model specifically includes following steps：
Step 1, design guide rail surface combines micro- texture features, the very low power group that dimple cheats pattern and is connected to dimple hole
Closing pattern, there are guide rail whole stroke working surfaces.
Step 2, guide rail surface carries out pre-treatment grinding process, so that guide rail surface roughness and geometric tolerances is reached laser micro-
The requirement of moulding：Arithmetic average deviation Ra≤0.8um of profile, maximum height Rz≤3.2um of profile, straightness and flatness
≤0.01um。
Step 3, guide rail cleans, with the wiping of dry cotton until bright dustless, removal surface dirt and greasy dirt.
Step 3, texture is processed in guide rail surface using diode LD pumped YAG lasers, using composite stepper motor control
System is loaded with workbench displacement of the lines and the angular displacement of guide rail, and the processing method for keeping laser beam motionless prepares array dimple hole and is connected to
The very low power in dimple hole, specific laser processing parameter optical maser wavelength 532nm, defocusing amount 0mm, pulse width 0.5ms, pulse frequency
Rate 1-10KHz, laser energy density 10-500J/cm2, electric current 10-25A, without auxiliary blowing, air atmosphere.
Step 4, the aftertreatment technology of laser micro molding is processed by shot blasting in guide rail surface, and laser is removed via polishing
The a small amount of slag generated when processing dimple hole and very low power obtains the very low power combination shape in array dimple hole and connection dimple hole
The parameter of looks, polishing process is：Bonding agent is resin, the carbonization of material green, the soft emery stick of granularity 1500#, pressure 0.8-
1.0MPa, time 10-25s.
Step 5, scraping is carried out to guide rail surface 1 after polished technique, slightly scraped using long scraper, scraping stroke is in 10-
Between 15mm, tool marks width, scraper mark forward, does not repeat in flakes, when surface roughness Ra≤0.8um terminates slightly to scrape, carefully scrapes
It is exactly to use short scraper, scraping stroke is in 10-12mm, and tool marks width 6mm, progress must be oriented by carefully scraping, when straightness and plane
Degree is required to≤0.01um, surface roughness≤0.8um, you can terminates scraping.
The advantage of the utility model is：(1) very low power that dimple cheats and is connected to dimple hole is processed on machine tool guideway surface
Composite topography mainly solves the creeping phenomenon of guide rail, improves greasy property, while improving guide rail wearability, can effectively prolong
The long guideway service life improves comprehensive performance.(2) noncontact procession will not generate mechanical presses or mechanical stress to material.(3)
Processing heat is small, and guide rail is without thermal deformation.(4) it is that material removal is processed, pattern is easily controllable, reaches micron order.(5) it laser machines
It is efficient, it is of low cost.
Description of the drawings
Fig. 1 is that dimple cheats texture features sectional view.
Fig. 2 is very low power texture features sectional view.
Fig. 3 is the composite topography schematic diagram that very low power is connected to dimple hole.
Fig. 4 is a kind of rectangular guideway figure for the composite topography being connected to dimple hole with very low power.
Fig. 5 is a kind of triangular guide figure for the composite topography being connected to dimple hole with very low power.
Fig. 6 is a kind of dovetail slideway figure for the composite topography being connected to dimple hole with very low power.
In figure：1, guide rail surface；2, dimple hole；3 very low powers；4, the dynamic guide rail of rectangular guideway；5, the quiet of rectangular guideway is led
Rail；6, the dynamic guide rail of triangular guide；7, the quiet guide rail of triangular guide；8, the dynamic guide rail of dovetail slideway；9, swallow-tail form is led
The quiet guide rail of rail.
Specific implementation mode
The specific implementation of the utility model is illustrated by taking CA6140 center lathe guide rails as an example below.
Laser process equipment selects diode-pumped laser.CA6140 center lathe guide rails, guide material are No. 45 steel,
Rail types are rectangular slide guide rail, guide rail overall length 1350mm.
Embodiment 1.The utility model embodiment provides CA6140 center lathes and combines micro- texture guide rail preparation method, step
For：
Step 1, CA6140 center lathes, rail types are rectangular slide guide rail, and dimple cheats the specific geometric parameter of 2 patterns
For：Pit diameter D=65um, pit depth H=5um, pattern spacing k=225um, pattern area ratio/occupancy ratio S=5%.Micro- ditch
The specific geometric parameter of 3 pattern of slot：Trench length a=100mm, groove width b=20um, gash depth h=5um, trench spacing c
=225um.
Step 2, guide rail surface 1 needed before Laser Micro-Machining by pre-treating technology, and pre-treating technology is using mill
Processing is cut, 1 precision of guide rail surface is made to reach the requirement of Laser Micro-Machining, surface roughness：The arithmetic average deviation of parameter profile
Ra≤0.8um, maximum height Rz≤3.2um of profile, geometric tolerances：Straightness and flatness are required to≤0.01um.
Step 3, guide rail cleans, with the wiping of dry cotton until bright dustless, removal surface dirt and greasy dirt.
Step 4, using diode LD pumped YAG lasers guide rail surface laser processing dimple cheat 2 texture and with along guide rail
Direction is connected to the linear type very low power 3 in dimple hole 2, and it is 532nm that the former specific laser processing parameter, which is optical maser wavelength, and defocusing amount is
0mm, pulse width 0.5ms, pulse frequency 1.6KHz, laser energy density 113.23J/cm2, single pulse energy is
1.6mJ, electric current 17A, pulse is with point interval processing 4 times, without auxiliary blowing, air atmosphere；The latter specifically laser machines ginseng
It is 532nm, defocusing amount 0mm, pulse width 0.5ms that number, which is optical maser wavelength, pulse frequency 1.6KHz, and laser energy density is
14.15J/cm2, single pulse energy 0.2mJ, electric current 13.6A, pulse is with point interval processing 2 times, without auxiliary blowing, sky
Atmosphere is enclosed.
Step 5, the aftertreatment technology of laser micro molding is processed by shot blasting in guide rail surface, and laser is removed via polishing
The a small amount of slag generated when processing dimple hole 2 and very low power 3 obtains the very low power 3 in array dimple hole 2 and connection dimple hole 2
The parameter of composite topography, polishing process is：Bonding agent is resin, the carbonization of material green, the soft emery stick of granularity 1500#, pressure
0.8-1.0MPa, time 10-25s.
Step 6, scraping is carried out to guide rail surface 1 after polished technique, slightly scraped using long scraper, scraping stroke is in 10-
Between 15mm, tool marks width, scraper mark forward, does not repeat in flakes, when surface roughness Ra≤0.8um terminates slightly to scrape, carefully scrapes
It is exactly to use short scraper, scraping stroke is in 10-12mm, and tool marks width 6mm, progress must be oriented by carefully scraping, when straightness and plane
Degree is required to≤0.01um, surface roughness≤0.8um, you can terminates scraping.
Embodiment 2, difference from example 1 is that being equipped with cloth oil along rail length direction whole process in guide rail surface
The shape of slot, the spreader groove is trigonometric function curve.The spreader groove width is t=1-2mm, depth q=1mm-3mm.
The spreader groove of trigonometric function shape is processed in guide rail surface using CNC milling machine, specific machined parameters are：Speed of mainshaft 200-
600mm/s, amount of feeding 10-100mm, cutting depth 1-3mm.
Embodiment 3, as shown in figure 5, the micro- texture features of combination of the utility model are applied to the quiet guide rail 7 of triangular guide
On, corresponding is the dynamic guide rail 6 of triangular guide.
Embodiment 4, as shown in fig. 6, the micro- texture features of combination of the utility model are applied to the quiet guide rail 9 of dovetail slideway
On, corresponding is the dynamic guide rail 8 of dovetail slideway.
Examples detailed above limits the utility model simply to illustrate that the utility model, new to this practicality
Modifications and changes made by type, all should be in the scope of protection of the utility model.
Claims (7)
1. a kind of micro- texture guide rail of combination, which is characterized in that in the micro- texture of combination of guide rail surface distribution, the micro- texture of combination
Pattern and very low power pattern are cheated for dimple, the very low power pattern is to cheat pattern array in dimple to be machined with along rail length direction
Connection single dimple hole pattern very low power.
2. a kind of micro- texture guide rail of combination according to claim 1, which is characterized in that the geometric parameters of the very low power pattern
Number is：Groove width b=20-300um, gash depth h2<Micro- pit depth.
3. a kind of micro- texture guide rail of combination according to claim 1 or 2, which is characterized in that the dimple cheats the several of pattern
How parameter is：Pit diameter d=20-500um, pit depth h=1-50um, pattern spacing k1=100-2000um, dimple hole
The pattern area ratio/occupancy ratio of pattern array is S1=1%-40%.
4. a kind of micro- texture guide rail of combination according to claim 3, which is characterized in that the shape of dimple hole pattern array
Looks area ratio/occupancy ratio is S1=6-16%.
5. a kind of micro- texture guide rail of combination according to claim 1 or 2, which is characterized in that long along guide rail in guide rail surface
It spends direction whole process and is equipped with spreader groove.
6. a kind of micro- texture guide rail of combination according to claim 5, which is characterized in that the shape of the spreader groove is triangle
Function curve.
7. a kind of micro- texture guide rail of combination according to claim 6, which is characterized in that the spreader groove width is t=1-
2mm, depth q=1mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816997.3U CN208067761U (en) | 2017-12-22 | 2017-12-22 | A kind of micro- texture guide rail of combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721816997.3U CN208067761U (en) | 2017-12-22 | 2017-12-22 | A kind of micro- texture guide rail of combination |
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| CN208067761U true CN208067761U (en) | 2018-11-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098364A (en) * | 2017-12-22 | 2018-06-01 | 南通大学 | A kind of micro- texture guide rail of combination and preparation method thereof |
| CN109531409A (en) * | 2018-12-13 | 2019-03-29 | 山东大学 | Compound micro- texture guide rail of one kind and preparation method thereof |
-
2017
- 2017-12-22 CN CN201721816997.3U patent/CN208067761U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098364A (en) * | 2017-12-22 | 2018-06-01 | 南通大学 | A kind of micro- texture guide rail of combination and preparation method thereof |
| CN109531409A (en) * | 2018-12-13 | 2019-03-29 | 山东大学 | Compound micro- texture guide rail of one kind and preparation method thereof |
| CN109531409B (en) * | 2018-12-13 | 2019-12-03 | 山东大学 | Compound micro- texture guide rail of one kind and preparation method thereof |
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