CN207788258U - A kind of bumps are spaced apart micro- texture guide rail - Google Patents
A kind of bumps are spaced apart micro- texture guide rail Download PDFInfo
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- CN207788258U CN207788258U CN201721816159.6U CN201721816159U CN207788258U CN 207788258 U CN207788258 U CN 207788258U CN 201721816159 U CN201721816159 U CN 201721816159U CN 207788258 U CN207788258 U CN 207788258U
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Abstract
The utility model discloses a kind of bumps to be spaced apart micro- texture guide rail, is related to machine tool guideway technical field of surface.The utility model includes guide rail matrix, dimple hole texture array and microprotrusion texture battle array, the dimple hole texture array is set to the arrangement of microprotrusion texture battle array adjacent spaces in the guide rail surface for implementing guide rail matrix, and the adjacent dimple cheats the length for being smaller than dynamic rail of texture array or the spaced pattern texture array of the same race of microprotrusion texture battle array.The utility model can preferably reduce abrasion, inhibit lathe/slide creeping phenomenon.
Description
Technical field
The utility model is related to a kind of machine tool guideway process for treating surface, through laser micro process, in machine tool guideway table
It is adjacent with microprotrusion texture array in the surface topography being spaced apart that face forms dimple hole texture array, and in particular to a kind of surface
Application of micro- texture guide rail technology in Machine Tool 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, and the suddenly change of frictional force is that the generation of heavy-duty low-speed operating mode lower slider guide rail is creeped
The principal element of phenomenon.
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 cause in dimple hole between lathe and guide rail
Oil storage be difficult to be carried over to form complete lubricating film, make working surface easy to wear instead, do not have practical solution technical problem
Meaning.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 solve single textural composite pattern processing difficulties, dimple hole oil storage, oil supply function are difficult to play and lubricating oil
The problem of can not flowing, the utility model process dimple hole texture and microprotrusion texture using laser in quiet guide rail working surface
Adjacent in the surface topography being spaced apart, two kinds of texture are single shape, reach macroscopical concave-convex by spaced mode
Composite effect, on the one hand the advantageous oil storage for playing dimple hole, oil supply function, reinforce hydrldynamic pressure lubrication effect, in addition, microprotrusion
There are gaps between texture, are conducive to the formation of the flowing and oil film of lubricating oil, so as to improve greasy property, inhibit creeping phenomenon.
Invention content
The utility model generates creeping phenomenon mainly for heavy-duty low-speed operating mode lower slider guide rail, and has compound pattern
Single texture difficulty processing, and the problem of part pattern texture function is restricted, it is proposed that a kind of bumps are spaced apart micro- texture
Guide rail and preparation method thereof.
The technical solution adopted in the utility model is that the bumps of distribution rule are processed in guide rail carrying and relative motion surface
It is spaced apart micro- texture, it is that dimple cheats two kinds of patterns of texture array and microprotrusion texture array that the bumps, which are spaced apart micro- texture,
Spaced, i.e., the lathe that is smaller than of the described spaced pattern texture array of the same race moves guide rail（Sliding block）Length.
Parameter setting when for ease of processing, the spacing between adjacent pattern array of the same race are equal.
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 area ratio/occupancy ratio is the area in dimple hole
The sum of with dimple cheat texture array the ratio between occupied area.The geometric parameter of the microprotrusion texture features is：Microprotrusion diameter D
=20-500um, microprotrusion height H=1-10um, pattern spacing k2=100-2000um, pattern area ratio/occupancy ratio are S2=8%-50%,
Area ratio/occupancy ratio is the ratio between the occupied area with microprotrusion texture array of the area of microprotrusion.
The method of the utility model specifically includes following steps：
Step 1, design guide rail surface bumps are spaced apart micro- texture features, between dimple hole and microprotrusion texture features array
Every in the guide rail surface for being distributed in the work of guide rail whole stroke.
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 4, texture is processed in guide rail surface using diode LD pumped YAG lasers, using composite stepper motor control
System control 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 the battle array to distribute alternately
Row dimple cheats texture and microprotrusion texture, specific laser processing parameter optical maser wavelength 532nm or 1064nm, defocusing amount 0mm, arteries and veins
Width 0.5ms, pulse frequency 1-10KHz are rushed, laser energy density is 10-500 J/cm2, electric current 10-25A, without auxiliary air blowing
Body, air atmosphere.
The advantage of the utility model is：（1）The dimple hole and microprotrusion shape that processing distributes alternately on machine tool guideway surface
Looks, mainly solve single textural composite pattern processing difficulties, and dimple hole oil storage, oil supply function are difficult to send out in concave-convex compound pattern
It waves and the problem of lubricating oil can not flow, the operation stability of lathe is improved by reducing critical creep speed, to more preferable
Ground reduces abrasion, inhibits lathe/slide creeping phenomenon.The critical speed creeped through experiment test is smooth with undressed micromorphology
Guide rail, which is compared, reduces 50% or more.（2）Noncontact procession will not generate mechanical presses or mechanical stress to material.（3）Add
Work heat is small, and guide rail is without thermal deformation.（4）Laser machine 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 microprotrusion texture features sectional view.
Fig. 3 is that bumps are spaced apart micro- texture features schematic diagram.
Fig. 4 is a kind of rectangular guideway figure being spaced apart micro- texture features with bumps.
Fig. 5 is a kind of triangular guide figure being spaced apart micro- texture features with bumps.
Fig. 6 is a kind of dovetail slideway figure being spaced apart micro- texture features with bumps.
Fig. 7 is a kind of vertical view of the quiet guide rail for the rectangular guideway being spaced apart micro- texture features with bumps.
In figure：1, guide rail surface；2, dimple hole；3 microprotrusions；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.
It is No. 45 steel that laser process equipment, which selects diode-pumped laser, CA6140 center lathe guide rails, guide material,
Rail types are rectangular slide guide rail, guide rail overall length 1350mm.
Embodiment 1, the utility model embodiment provide CA6140 center lathe bumps and are spaced apart micro- texture guide rail making
Method, step are：
Step 1, CA6140 center lathes, rail types are rectangular slide guide rail, and dimple cheats the specific geometric parameter of 2 patterns
For：Micro- pit diameter d=65um, micro- pit depth h=5um, pattern spacing k1=225um, pattern area ratio/occupancy ratio S1=14%.It is micro-
The specific geometric parameter of raised 3 patterns：Microprotrusion diameter D=107mm, microprotrusion height H=2um, pattern spacing k2=200um, pattern
Area ratio/occupancy ratio S2=22.5%.Adjacent pattern array spacing L=9000um of the same race.
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 4,2 texture, specific laser are cheated in guide rail surface laser processing dimple using diode LD pumped YAG lasers
Machined parameters optical maser wavelength is 532nm, defocusing amount 0mm, single pulse energy 1.6mJ, power 2.56w, pulse frequency
1.6KHz, laser energy density 113.23J/cm2, electric current 17A, pulse repetition processing 2 times, air atmosphere.
Step 5, it is processed by shot blasting, is generated when removing laser processing dimple hole 2 via polishing a small amount of in guide rail surface 1
The parameter of slag, 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 6,3 texture of microprotrusion is laser machined in guide rail surface 1 using diode LD pumped YAG lasers, it is specific to swash
Light machined parameters optical maser wavelength is 1064nm, defocusing amount 0mm, pulse width 0.1ms, pulse frequency 500KHz, laser energy
Density is 200J/cm2, electric current 16A, pulse processing 1 time, air atmosphere.
Embodiment 2, as shown in fig. 6, the bumps of the utility model, which are spaced apart micro- texture features, is applied to triangular guide
Quiet guide rail 7 on, corresponding is the dynamic guide rail 6 of triangular guide.
Embodiment 3, as shown in fig. 7, the bumps of the utility model, which are spaced apart micro- texture features, is applied to dovetail slideway
Quiet guide rail 9 on, corresponding is the dynamic guide rail 8 of dovetail slideway.
To it is processed go out guide rail test, dimple cheat pattern array area ratio/occupancy ratio S1=6-16%, microprotrusion pattern array
Area ratio/occupancy ratio S2=16-28% inhibits best results of creeping, the smooth guide phase of the critical speed creeped and undressed micromorphology
Than reducing 51.3%-53.9%.
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 bumps are spaced apart micro- texture guide rail, which is characterized in that including guide rail matrix, dimple hole texture array and dimpling
Texture battle array is played, the dimple hole texture array is set to the guide rail meter for implementing guide rail matrix with the arrangement of microprotrusion texture battle array adjacent spaces
On face.
2. a kind of bumps according to claim 1 are spaced apart micro- texture guide rail, which is characterized in that the adjacent dimple
Cheat the length for being smaller than dynamic rail of texture array or the spaced pattern texture array of the same race of microprotrusion texture battle array.
3. a kind of bumps according to claim 2 are spaced apart micro- texture guide rail, which is characterized in that the adjacent shape of the same race
The spacing of looks texture array is equal.
4. a kind of bumps according to claim 1,2 or 3 are spaced apart micro- texture guide rail, which is characterized in that the dimple
Hole pattern geometric parameter be：Pit diameter d=20-500um, pit depth h=1-50um, pattern spacing k1=100-2000um,
The pattern area ratio/occupancy ratio that dimple cheats pattern array is S1=1%-40%.
5. a kind of bumps according to claim 4 are spaced apart micro- texture guide rail, which is characterized in that the dimple cheats pattern
The pattern area ratio/occupancy ratio of array is S1=6-16%.
6. a kind of bumps according to claim 1,2 or 3 are spaced apart micro- texture guide rail, which is characterized in that the dimpling
Rise texture features geometric parameter be：Microprotrusion diameter D=20-500um, microprotrusion height H=1-10um, pattern spacing k2=
The pattern area ratio/occupancy ratio of 100-2000um, microprotrusion texture features array are S2=8%-50%.
7. a kind of bumps according to claim 6 are spaced apart micro- texture guide rail, which is characterized in that the microprotrusion texture
The pattern area ratio/occupancy ratio of pattern array is S2=16-28%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721816159.6U CN207788258U (en) | 2017-12-22 | 2017-12-22 | A kind of bumps are spaced apart micro- texture guide rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816159.6U CN207788258U (en) | 2017-12-22 | 2017-12-22 | A kind of bumps are spaced apart micro- texture guide rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223571A (en) * | 2017-12-22 | 2018-06-29 | 江苏大学 | A kind of bumps are spaced apart micro- texture guide rail and preparation method thereof |
-
2017
- 2017-12-22 CN CN201721816159.6U patent/CN207788258U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223571A (en) * | 2017-12-22 | 2018-06-29 | 江苏大学 | A kind of bumps are spaced apart micro- texture guide rail and preparation method thereof |
| CN108223571B (en) * | 2017-12-22 | 2024-06-07 | 江苏大学 | Concave-convex interval distribution micro-texture guide rail and manufacturing method thereof |
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