CN104625424B - A kind of internal combustion engine cylinders inner wall laser lithography device - Google Patents
A kind of internal combustion engine cylinders inner wall laser lithography device Download PDFInfo
- Publication number
- CN104625424B CN104625424B CN201510041886.9A CN201510041886A CN104625424B CN 104625424 B CN104625424 B CN 104625424B CN 201510041886 A CN201510041886 A CN 201510041886A CN 104625424 B CN104625424 B CN 104625424B
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- China
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- laser
- head
- rotating machine
- electric rotating
- slide carriage
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
Abstract
The invention discloses a kind of processing unit (plant) of inboard wall of cylinder block laser ablation, described device includes laser aid, lathe, three parts of control, and described laser aid includes laser, light path system and focus head；Lathe part includes workbench, frame and its drive mechanism, and work piece holder is provided with the workbench, and the light path system and the focus head are installed in frame, and the drive mechanism drives the focus head that two dimensional motion is fed and rotated relative to cylinder body；The critical piece of control section is industrial computer, while the encoder and the acousto-optic power supply are controlled, with precise control pulsed laser action in each position of inboard wall of cylinder block.The present invention proposes that the micro- hole lithography speed of pulse laser is fast in laser roughening technical foundation, efficiency high.
Description
Technical field
The invention belongs to laser machine equipment, particularly a kind of pulse laser focusing of use high repetition frequency to inboard wall of cylinder block
Surface forms the equipment that discrete type etches micro-pits machining.
Background technology
Cylinder body and piston ring are one of most important friction pairs in internal combustion engine, directly affect the service life and property of internal combustion engine
Can, because it is operated under the mal-condition of high temperature, high speed, high pressure, easily there are various abrasions, and the service life of internal combustion engine and
Performance depends greatly on this abrasion resistance to friction pair.Motor cylinder block inwall mainly uses emery stick both at home and abroad at present
Mechanical lapping, the eighties generate inboard wall of cylinder block laser quenching technology to improve cylinder body wearability, but laser quenching can not change
Kind this friction, lubrication condition to friction pair of cylinder-piston, it is difficult to reach the integration objective of oil-saving discharging-reducing.In order to preferably grind
Inboard wall of cylinder block laser ablation pattern is studied carefully to the friction of cylinder-piston ring and the influence of sealing property, develops inboard wall of cylinder block Laser Processing
Device is particularly important.
The content of the invention
The invention discloses a kind of internal combustion engine cylinders inner wall laser lithography device, described device include laser aid,
Lathe, three parts of control,
Described laser aid includes laser, light path system and focus head；Lathe part include workbench, frame and its
Drive mechanism, is provided with work piece holder on the workbench, the light path system and the focus head, the drive are installed in frame
Motivation structure drives the focus head that two dimensional motion is fed and rotated relative to cylinder body；The critical piece of control section is industry control
Machine, while control the encoder and the acousto-optic power supply, with precise control pulsed laser action in inboard wall of cylinder block each
Position.
Further, the focus head device is rotary movement.
Further, rotating mechanism is connected with the same shaft encoder, and cylinder body is motionless, and focus head is rotated, encoder with it is poly-
Burnt head rotating spindle is coaxial.
The invention also discloses a kind of processing unit laser machined to internal combustion engine cylinders, described device includes upper and lower
Feed arrangement, laser optical path, focusing system, positioning and whirligig, described feed arrangement include electric rotating machine, leading screw and slip
Plate, laser optical path includes two panels laser mirror, one group of focusing system and gas shield device, and focusing system includes electric rotating
Machine, leading screw and regulation driving lever, positioner are hollow encoder, and whirligig is hollow electric rotating machine,
Coaxial hollow electric rotating machine fixing end is connected in the fix bar being connected with the slide carriage of feed arrangement, and rotor is lived
Moved end is connected with coaxial hollow encoder movable end；Connecting rod with laser export head is connected with hollow encoder is rotated；It is burnt
It is connected with focusing system away from regulation motor, with rotary system sliding fit.
Further, during adjusting focal length, the bar with focus lamp only moves up and down under electric rotating machine driving, does not do and revolves
Transhipment is dynamic.
Further, gas input is connected with connecting rod, between gas passes through between focusing rod and swingle sliding fit
Exported on the outside of gap, and gas shield eyeglass in laser export head, gas positive pressure protection is formed to eyeglass.
Further, focusing system is connected with focusing lever, is only moved up and down relative to slide carriage, does not rotate, and laser is led
Speculum has two in entering system, and speculum is not taken exercises relative to slide carriage above focus lamp, and below focus lamp speculum with
Export head relative position is fixed, and is not moved up and down relative to slide carriage, is only rotated.
Further, speculum is maintained static relative to slide carriage, and speculum and laser export head are fixed on swingle, with
The rotation laser beam for motor carries out circumference to rotary laser processing in inboard wall of cylinder block.
Further, focus adjustment bar and fix bar precision sliding fit, gap is small, and with electric rotating machine, encoder and
Gap between swingle is larger.
Further, described device is used equally to other Laser Processings.
Remarkable result of the invention is：The present invention proposes that the micro- hole etching of pulse laser adds in laser roughening technical foundation
Work speed is fast, efficiency high.
Brief description of the drawings
Fig. 1 is the micro- pit device schematic diagram of inboard wall of cylinder block laser ablation of the present invention；
Fig. 2 is rotating laser head schematic diagram of the present invention；
Fig. 3 is rotating laser head stereogram of the present invention；
Fig. 4 is the profile of rotating laser head of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings to a kind of specific reality of internal combustion engine cylinders inner wall laser lithography device disclosed by the invention
The mode of applying elaborates, and is not used to limit the scope of the present invention.
As shown in figure 1, the process unit of inboard wall of cylinder block laser ablation includes laser aid, lathe, three parts of control.It is described
Laser aid include laser and its light path system and focus head；Lathe part includes workbench, frame and its drive mechanism,
Work piece holder is installed on workbench, light-conducting system and focus head are installed in frame, drive mechanism drives focus head relative to cylinder
Body feeds and rotates two dimensional motion；Control section critical piece is industrial computer, and connection drives with shaft encoder harmony photoelectric source
Part.Wherein, 1 is cylinder body, and 2 is focus head device, and pulse laser is focused in cylinder body by outer light path, then by focus head device
Wall, focus head device has rotation and does not rotate two kinds respectively, and depending on lithographic method, 3 is coaxial rotating encoder, Main Function
It is the precision of control laser ablation position, 4 is industrial computer, and Main Function is that will etch micro- hole distributed constant to be compiled as controlling telecommunications
Number, there is provided rotary encoder harmony photoelectric source is given, is etched with the micro- hole for realizing specified distribution parameter, 5 is acousto-optic power supply, main to make
With being that the control signal sent from industrial computer is converted into acousto-optic modulation signal, control laser is sent with controllable pulsewidth and work(
The pulse laser of rate density, 6 is laser (including refrigeration machine), act as etching the basement membrane laser that micro- pit device provides stabilization, 7
It is the outside optical system of laser, effect is to guide to focus head 2 pulse laser sent from laser 6, and 8 is machine tool feed
System.
The general principle of inboard wall of cylinder block laser ablation controlled distribution technology is：Using the micro- hole of YAG laser ablations by control sound
The electric signal control laser output optical pulse of photoelectric source, response speed quickly, the spy of light pulse only several microseconds of delayed electric signal
Point, the position of cylinder body is measured by detection means (high-accuracy high-resolution encoder), and controlled distribution interface is passed through with industrial computer 4
Card and controlled distribution software produce the electric signal of control acousto-optic power supply 5, acousto-optic power supply 5 to detection signal after line becomes scaling down processing
The control output optical pulse of laser 6, precise control inboard wall of cylinder block etches the circumference in micro- hole to spacing, while passing through tumbler
(such as lathe) leading screw drives the movement precise control of focus head 2 to etch the axial spacing in micro- hole, so as to realize the micro- hole two of cylinder body etching
Dimension controlled distribution.
Inboard wall of cylinder block pulsed YAG laser lithography method is：Cylinder body 1 is motionless, and laser head 2 does translation and rotation, its knot
As shown in figure 1, laser head is as shown in Fig. 2 stationary housing first, the pulse laser sent from laser 6 is drawn structure by outer light path 7
It is directed at inboard wall of cylinder block 1 and performs etching processing, by adjusting laser parameter, realize the laser ablation of single micro- hole different-shape, swashs
Shaven head is equipped with hollow coaxial rotating encoder 3 and 11, by adjusting rotating mechanism (such as rotation core motor 10) parameter point away from, spiral shell
Away from and rotating speed test the controllable of various inboard wall of cylinder block laser ablation parameters.Rotating mechanism 10 is connected with encoder 3, it is overall with
The feed system 2 of lathe is connected, and encoder 3 and acousto-optic power supply 5, precise control pulsed laser action are controlled simultaneously by industrial computer 4
In each position of inboard wall of cylinder block 1.Rotating mechanism 10 is connected with same shaft encoder 3, if cylinder body rotation, encoder and lathe
Main shaft is coaxial, if cylinder body is motionless, focus head is rotated, then encoder is coaxial with focus head rotating spindle.
As shown in Figures 3 and 4, the present invention devises a set of rotating laser head device and a kind of laser head locating rotation is gone forward side by side
The mode given carries out the processing unit laser machined to internal combustion engine cylinders, including bottom and top feed device, laser optical path, focusing
System, positioning and whirligig.Described feed arrangement includes electric rotating machine, leading screw and slide carriage, and laser optical path swashs including two panels
Light reflection mirror, one group of focusing system and gas shield device, focusing system include electric rotating machine, leading screw and regulation driving lever, positioning
Device is hollow encoder, and whirligig is hollow electric rotating machine.Wherein, 9 is the slide carriage of whole laser head feed arrangement, and 10 are
Hollow coaxial motor, 11 is hollow same shaft encoder, and 12 is swingle, and 13 is laser export head, and 14 is focus adjustment motor, 15
It is fix bar, 16 is protective gas input head, and 17 is stationary mirror, and 18 is rotating mirror, and 19 is focus adjustment bar, and 20 are
Focus on microscope group.
The operation principle of rotating laser head is：Whole laser head is all fixed on on feeding slide carriage 9, can together be done with 9
Bottom and top feed is moved, and the laser beam of the interstitial hole of longitudinal slide carriage 9 switchs to downward incidence, passing through by speculum 17 by glancing incidence
Microscope group 20 is focused on, laser beam switchs to glancing incidence again by speculum 18 after focusing, and processing is focused on by laser export head 13
Workpiece inner wall surface.Wherein speculum 17 is maintained static relative to slide carriage 9, and speculum 18 and laser export head 13 are fixed on rotation
On bar 12, processed to rotary laser as the rotation laser beam of motor 10 carries out circumference in inboard wall of cylinder block, focus lamp 20 is fixed
On focus adjustment bar 19, adjusting rod 19 does the up and down motion relative to slide carriage 9 with the rotation of focus adjustment motor 14, so that
Accomplish the adjustable of focal length, the fixing end of coaxial hollow electric rotating machine 10 is connected in fix bar 15, while fix bar 15 and the phase of slide carriage 9
Even, the fixing end of coaxial hollow encoder 11 is connected with the fixing end of electric rotating machine 10, and rotor movable end is compiled with coaxial hollow
Code device 11 movable end is connected, and the movable end of coaxial hollow encoder 11 connects the rotor and swingle 12 of motor, to laser beam plus
Work position signalling is monitored and control；During adjusting focal length, the bar with focus lamp only does under electric rotating machine driving and transports up and down
It is dynamic, do not rotate.The accurate sliding fit of focus adjustment bar 19 and fix bar 15, gap is small, and with electric rotating machine 10, encoder
Gap between 11 and swingle 12 is larger, and protective gas device 16 is connected with larger gap, and gas is larger by these
Gap discharges from laser export head 13, so as to serve the purpose of eyeglass in the whole laser head of protection.Focus adjustment motor
14 are connected with focusing system, with rotary system sliding fit.
The present invention devises the micro- hole etching equipment of a set of pulse laser, and the inner wall laser for corresponding respectively to cylinder body and cylinder body is carved
Erosion, proposes the processing method using rotation in outer rotation and swivel head, and the laser that these methods can be used for miscellaneous part inwall adds
Work.
The preferred embodiments of the present invention are the foregoing is only, the numerical value and number mentioned in the description of description above
Value scope is not intended to limit the invention, and simply for the present invention is provided preferred embodiment, is not intended to limit the invention, right
For those skilled in the art, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of processing unit laser machined to internal combustion engine cylinders, described device includes bottom and top feed device, laser light
Road, focusing system, positioning and whirligig, described feed arrangement include electric rotating machine, leading screw and slide carriage, and laser optical path includes
Two panels laser mirror, one group of focusing system and gas shield device, focusing system include that electric rotating machine, leading screw and regulation are dialled
Bar, positioner be hollow encoder, whirligig be hollow electric rotating machine, coaxial hollow electric rotating machine fixing end be connected to
In the connected fix bar of the slide carriage of feed arrangement, rotor movable end is connected with coaxial hollow encoder movable end；With sharp
The connecting rod of light output head is connected with hollow encoder is rotated；Focus adjustment motor is connected with focusing system, is slided with rotary system
Coordinate；Gas input is connected with connecting rod, and gas passes through the gap between focusing rod and swingle sliding fit, and defeated in laser
Gas shield eyeglass outside output in lifting one's head, gas positive pressure protection is formed to eyeglass；Speculum is maintained static relative to slide carriage,
Speculum and laser export head are fixed on swingle, as the rotation laser beam of motor in inboard wall of cylinder block justify rotating in a circumferential direction
Formula is laser machined.
2. device according to claim 1, it is characterised in that during adjusting focal length, the bar with focus lamp is in electric rotating machine
Only moved up and down under driving, do not rotated.
3. device according to claim 1, it is characterised in that focusing system is connected with focusing lever, is only done relative to slide carriage
Move up and down, do not rotate, speculum there are two in laser import system, and speculum is not transported relative to slide carriage above focus lamp
It is dynamic, and speculum is fixed with export head relative position below focus lamp, is not moved up and down relative to slide carriage, is only rotated.
4. device according to claim 1, it is characterised in that focus adjustment bar and fix bar precision sliding fit, gap are small,
And the gap between electric rotating machine, encoder and swingle is larger.
5. device according to claim 1, it is characterised in that the laser that described device is used equally to other inner wall surfaces adds
Work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041886.9A CN104625424B (en) | 2015-01-28 | 2015-01-28 | A kind of internal combustion engine cylinders inner wall laser lithography device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041886.9A CN104625424B (en) | 2015-01-28 | 2015-01-28 | A kind of internal combustion engine cylinders inner wall laser lithography device |
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| Publication Number | Publication Date |
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| CN104625424A CN104625424A (en) | 2015-05-20 |
| CN104625424B true CN104625424B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510041886.9A Active CN104625424B (en) | 2015-01-28 | 2015-01-28 | A kind of internal combustion engine cylinders inner wall laser lithography device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202307A (en) * | 2017-11-24 | 2019-01-15 | 中国航空制造技术研究院 | A kind of laser punching device |
| CN115464873B (en) * | 2022-09-16 | 2023-05-12 | 珠海市协正智能装备有限公司 | Pressure maintaining device, attaching pressure maintaining device and pressure maintaining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10337699A (en) * | 1997-06-04 | 1998-12-22 | Canon Inc | Drilling work method of wiring board |
| CN2561546Y (en) * | 2002-08-15 | 2003-07-23 | 河南省中原华工激光工程有限公司 | Laser device for machining lubricating lines on inner wall of cylinder sleeve |
| CN102179629A (en) * | 2011-03-21 | 2011-09-14 | 中国科学院力学研究所 | System for carrying out laser etching on internal wall of cylinder liner of internal combustion engine and processing method thereof |
| CN102179630B (en) * | 2011-04-01 | 2014-10-29 | 江苏大学 | Laser micromachining device for surface of engine cylinder and machining method of laser micromachining device |
| CN103252584A (en) * | 2013-05-10 | 2013-08-21 | 常州大学 | Laser surface texturing corrosive-abrasion-resisting method of large hydraulic cylinder |
| CN103358019B (en) * | 2013-07-09 | 2016-07-06 | 嘉兴职业技术学院 | A kind of laser cutting head |
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