CN208067762U - A kind of alternate micro- texture guide rail of bumps - Google Patents
A kind of alternate micro- texture guide rail of bumps Download PDFInfo
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- CN208067762U CN208067762U CN201721817330.5U CN201721817330U CN208067762U CN 208067762 U CN208067762 U CN 208067762U CN 201721817330 U CN201721817330 U CN 201721817330U CN 208067762 U CN208067762 U CN 208067762U
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Abstract
The utility model discloses a kind of alternate micro- texture guide rails of bumps, are related to machine tool guideway technical field of surface.The alternate micro- texture of bumps that the utility model is distributed in guide rail surface, the alternate micro- texture of bumps is uniline dimple hole pattern and the equidistantly arrangement spaced apart of uniline microprotrusion pattern.The problem of the utility model solves single textural composite pattern processing difficulties, and dimple hole oil storage in concave-convex compound pattern, oil supply function are difficult to play and lubricating oil can not flow, to preferably reduce abrasion, inhibits 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
Face forms the surface topography that dimple hole texture is spaced apart with microprotrusion texture, and in particular to a kind of micro- texture guide rail technology in surface
Application in Machine Tool Industry.
Background technology
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 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, 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 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 alternate micro- texture guide rail of a kind of bumps of the utility model offer, using laser in quiet guide rail working surface
The surface topography that dimple hole texture is spaced apart with microprotrusion texture is processed, two kinds of texture are single shape, by alternate
The mode of arrangement reaches similar concave-convex compound pattern effect, effectively plays oil storage, the oil supply function in dimple hole, reinforces fluid
Hydrodynamic lubrication effect, alternate non-texture area, which is formed, serves as oil guide groove, is conducive to the formation of the flowing and oil film of lubricating oil, to change
Kind greasy property, inhibits creeping phenomenon.
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
One texture difficulty is processed, and the problem of part pattern texture function is restricted, it is proposed that a kind of alternate micro- texture guide rail of bumps.
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
Alternate micro- texture, the alternate micro- texture of the bumps are that uniline dimple cheats pattern and uniline microprotrusion pattern is equidistantly spaced apart
Arrangement.
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 dimple hole
The area ratio of the sum of area and the shared guide rail surface of dimple hole texture distribution.The geometric parameter of the microprotrusion texture features
For：Microprotrusion diameter D=20-500um, microprotrusion height H=1-10um, pattern spacing k2=100-2000um, pattern area occupy
Rate is S2=8%-50%, and the area ratio/occupancy ratio is that the sum of area of microprotrusion cheats the shared guide rail surface of texture distribution with dimple
Area ratio.
To it is processed go out guide rail test, dimple cheats pattern area ratio/occupancy ratio S1=6-16%, and microprotrusion pattern area occupies
Rate S2=16-28% inhibits best results of creeping.
The method of the utility model specifically includes following steps：
Step 1, the concave-convex alternate micro- texture features of design guide rail surface, dimple hole and microprotrusion texture features are spaced apart and deposit
In guide rail whole stroke working surface.
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 pumped YAG lasers, using composite stepper motor control
The displacement of the lines of workbench processed and angular displacement, the processing method for keeping laser beam motionless prepare the array dimple hole texture to distribute alternately
With microprotrusion texture, specific laser processing parameter optical maser wavelength 532nm or 1064nm, defocusing amount 0mm, pulse width 0.5ms,
Pulse frequency 1-10KHz, laser energy density are 10-500 J/cm2, electric current 10-25A, without auxiliary blowing, air atmosphere.
In this step, can also first process dimple hole pattern, post-processing microprotrusion pattern, laser processing dimple hole texture array after,
It is processed by shot blasting in guide rail surface, the slag that removal laser processing dimple generates when cheating, the parameter of polishing process is：Bonding agent
For resin, the carbonization of material green, the soft emery stick of granularity 1500#, pressure 0.8-1.0MPa, time 10-25s.
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, to preferably reduce abrasion, inhibits lathe/slide creeping phenomenon.（2）It is non-to connect
Touch is processed, and will not generate mechanical presses or mechanical stress to material.（3）Processing heat is small, and guide rail is without thermal deformation.（4）Laser
It is high in machining efficiency, 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 concave-convex alternate micro- texture features schematic diagram.
Fig. 4 is a kind of rectangular guideway figure with concave-convex alternate micro- texture features.
Fig. 5 is a kind of triangular guide figure with concave-convex alternate micro- texture features.
Fig. 6 is a kind of dovetail slideway figure with concave-convex alternate micro- texture features.
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 provides CA6140 center lathes concave-convex alternate micro- texture guide rail preparation method,
Step is：
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=5%.Dimpling
Play the specific geometric parameter of 3 patterns：Microprotrusion diameter D=107mm, microprotrusion height H=2um, pattern spacing k2=200um, pattern face
Product occupation rate S2=22.5%.
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 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 figure 5, the alternate micro- texture features of bumps of the utility model are applied to the quiet of triangular guide
On guide rail 7, corresponding is the dynamic guide rail 6 of triangular guide.
Embodiment 3, as shown in fig. 6, the alternate micro- texture features of bumps of the utility model are applied to the quiet of dovetail slideway
On guide rail 9, 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 (5)
1. a kind of alternate micro- texture guide rail of bumps, which is characterized in that described recessed in the alternate micro- texture of bumps of guide rail surface distribution
Convex alternate micro- texture is that uniline dimple cheats pattern and the equidistantly arrangement spaced apart of uniline microprotrusion pattern.
2. a kind of alternate micro- texture guide rail of bumps according to claim 1, which is characterized in that dimple hole pattern it is several
How parameter is：Pit diameter d=20-500um, pit depth h=1-50um, pattern spacing k1=100-2000um, dimple cheat pattern
The pattern area ratio/occupancy ratio of array is S1=1%-40%.
3. a kind of alternate micro- texture guide rail of bumps according to claim 2, which is characterized in that the dimple cheats pattern array
Pattern area ratio/occupancy ratio be S1=6-16%.
4. a kind of alternate micro- texture guide rail of bumps according to claim 1,2 or 3, which is characterized in that the microprotrusion is knitted
Configuration looks geometric parameter be：Microprotrusion diameter D=20-500um, microprotrusion height H=1-10um, pattern spacing k2=100-
The pattern area ratio/occupancy ratio of 2000um, microprotrusion texture features array are S2=8%-50%.
5. a kind of alternate micro- texture guide rail of bumps according to claim 4, which is characterized in that the microprotrusion texture features
The pattern area ratio/occupancy ratio of array is S2=16-28%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721817330.5U CN208067762U (en) | 2017-12-22 | 2017-12-22 | A kind of alternate micro- texture guide rail of bumps |
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| CN201721817330.5U CN208067762U (en) | 2017-12-22 | 2017-12-22 | A kind of alternate micro- texture guide rail of bumps |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274246A (en) * | 2017-12-22 | 2018-07-13 | 南通大学 | Alternate micro- texture guide rail of a kind of bumps and preparation method thereof |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274246A (en) * | 2017-12-22 | 2018-07-13 | 南通大学 | Alternate micro- texture guide rail of a kind of bumps and preparation method thereof |
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