CN205614195U - Laser election district parts machining process becomes facula optical scan device - Google Patents
Laser election district parts machining process becomes facula optical scan device Download PDFInfo
- Publication number
- CN205614195U CN205614195U CN201620338118.XU CN201620338118U CN205614195U CN 205614195 U CN205614195 U CN 205614195U CN 201620338118 U CN201620338118 U CN 201620338118U CN 205614195 U CN205614195 U CN 205614195U
- Authority
- CN
- China
- Prior art keywords
- laser
- guide rail
- concavees lens
- laser beam
- slide block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a laser election district parts machining process becomes facula optical scan device, including industrial computer, laser instrument, manual change times beam expanding lens, removal concavees lens, prefocusing mirror, the mirror that shakes, back focusing mirror, remove the concavees lens setting on a moving mechanism, when drive its forward during focusing mirror direction rectilinear movement, the light spot diameter of laser beam reduces, on the contrary the light spot diameter grow, the scan method has adopted the scanning of outer housing part and the scanning of kernel part of waiting to process the part, this scan method and device technological means simple accurate not only can make the laser beam when the machining region interscan, and laser facula all vernier focusing has guaranteed that the laser facula has than high energy density on machining plane, just through dynamic focusing's mode, make laser beam when outside profile of scanning part and inside entity, can adopt different focusing spot size and laser power, have not only improved forming part's performance, precision greatly, have improved elements forming's speed moreover greatly.
Description
Technical field
The utility model relates to forming parts and manufactures field, particularly relates to a kind of selective laser part processed
Journey becomes hot spot optical scanner.
Background technology
Current selective laser smelting technology all selects laser instrument as energy source, and laser instrument is in forming process
Launching laser beam, laser beam reaches processing plane after passing through light path system, in selective melting processing plane
Preset metal dust, then processing platform decline certain depth reinitializes layer of metal powder, laser beam
Continue selective melting metal dust, circulate with this until whole forming process completes, thus reach to manufacture
The purpose of part.But in current selective laser melting unit, use fixing light path system, i.e. sharp
Light beam can only pass through the light path system pre-setting, including expanding and collimation etc. of light beam, therefore reaches
The laser beam of processing platform is for fix, i.e. focus is constant, and this will cause whole forming process needs to be adopted
By identical machined parameters, such as laser power, sweep speed etc., this fixed machined parameters is arranged
Not only bad for the raising of formed precision, and shaping efficiency can be substantially reduced.
Content of the invention
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, provides a kind of structure
Simply, selective laser part process darkening spot optical scanner easy for installation, with low cost.
Not only solve the technical problem that existing laser equipment cannot realize that laser facula changes, and solve existing
Have that processing method efficiency is low, the shortcoming of time-consuming length.
The utility model is achieved through the following technical solutions:
A kind of selective laser part process darkening spot optical scanner, including industrial computer the 1st, laser instrument
2nd, the 3rd, manual Zooming expander moves concavees lens the 4th, prefocusing mirror the 5th, galvanometer the 6th, rear focus lamp 7；
Described laser instrument 2 light path successively connects manual Zooming expander and the 3rd, moves concavees lens the 4th, prefocusing mirror
5th, galvanometer the 6th, rear focus lamp 7；I.e. laser beam 8 is sent and sequentially passes through the expansion of manual zoom by laser instrument 2
Bundle mirror the 3rd, move concavees lens the 4th, prefocusing mirror the 5th, galvanometer the 6th, rear focus lamp 7 and reach process plane 9；
Described mobile concavees lens 4 are arranged in a travel mechanism, are driven it along manually change by travel mechanism
Optical axis between power beam expansion lens 3 and prefocusing mirror 5 makees straight-line displacement, or makees continuous reciprocating linear and move；
When travel mechanism drives its focus lamp 5 direction rectilinear movement forward, the spot diameter of laser beam 8 becomes big；
When travel mechanism drives it to move linearly to manual Zooming expander 3 direction, the hot spot of laser beam 8 is straight
Footpath diminishes；
Described industrial computer 1 telecommunication connecting laser 2 and travel mechanism.
Described travel mechanism includes that the 11st, slide block that the 12nd, guide rail be arranged on guide rail 12 is arranged on slide block 11
On drive rod 14, and drive the servomotor 13 of this slide block 11 position of movement on guide rail 12；
Described mobile concavees lens 4 are arranged on drive rod 14, move when industrial computer 1 controls servomotor 13
When making, servomotor 13, according to the instruction of industrial computer 1, drives slide block 11 to move on guide rail 12, makes
The axis direction synchronizing moving at guide rail 12 for the drive rod 14 is followed in mobile concavees lens 4 synchronization.
Described guide rail 12 is external screw thread screw mandrel, and slide block 11 is for the internal thread coordinating with external screw thread screw mandrel
Slide block.
The guide rail being respectively arranged at two ends with for limiting slide block 11 shift motion on guide rail of described guide rail 12
Stop 10.
Described guide rail 12 be also arranged above one for indicating the rule of mobile concavees lens 4 position.
The fusing of a kind of selective laser manufactures metal parts process darkening spot optical scanning method, specifically wraps
Include: the housing portion scanning step of part to be processed and kernel portion scanning step；
Step (1): the housing portion scanning step of part to be processed
Before processing, first adjust laser beam 8 so that it is the hot spot in processing plane is the thinnest；
When processing part housing portion 16, industrial computer 1 controls servomotor 13 and carries movable slider 11 leading
Move on rail 12, make mobile concavees lens 4 synchronization follow position on the axis of guide rail 12 for the drive rod 14,
Having obtained the hot spot of required diameter, now the focus of laser beam 8 is exactly in the surface of processing plane 9,
Meanwhile, industrial computer 1 reduces the sweep speed of galvanometer 6 and the power output of laser instrument 2, to obtain
Surface accuracy satisfactory part shell；
Step (2): the kernel portion scanning step of part to be processed
After completing the scanning of step (1), carry out the scanning of part kernel portion 17, now, industrial computer 1
Again control servomotor 13 and with shift position on guide rail 12 for the movable slider 11, make mobile concavees lens
Position on the axis of guide rail 12 for the drive rod 14 is followed in 4 synchronizations, has obtained the kernel portion of processing part
The hot spot of required diameter, now the focus of laser beam 8 is exactly in the surface of processing plane 9, same with this
When, industrial computer 1 heightens the sweep speed of galvanometer 6 and the power output of laser instrument 2, to obtain internal cause
Density satisfactory part kernel.
Repetitive cycling step (1) and (2) process, can quickly obtain outside the part meeting required precision
Shell and the part kernel meeting consistency requirement, and then complete the rapid processing of one-piece parts.
The described industrial computer 1 of above-mentioned steps (1) controls servomotor 13 and carries movable slider 11 on guide rail 12
Mobile, this direction moved is focus lamp 5 direction rectilinear movement forward, thus changes mobile concavees lens 4
And the distance between prefocusing mirror 5；
Distance between mobile concavees lens 4 and prefocusing mirror 5 is less, and the spot diameter of laser beam 8 is bigger.
The described industrial computer 1 of above-mentioned steps (2) again controls servomotor 13 and carries movable slider 11 at guide rail
Shift position on 12, the direction of this shift position is toward the rectilinear movement of manual Zooming expander 3 direction,
Thus change the distance between mobile concavees lens 4 and manual Zooming expander 3；
Distance between mobile concavees lens 4 and manual Zooming expander 3 is bigger, and the hot spot of laser beam 8 is straight
Footpath is bigger, and now hot spot is in positive out-of-focus appearance.
The utility model, relative to prior art, has such advantages as and effect:
The utility model moves concavees lens and is arranged in a travel mechanism, is driven it along hand by travel mechanism
Dynamic optical axis between Zooming expander and prefocusing mirror makees straight-line displacement, or makees continuous reciprocating linear and move；
When travel mechanism drives its focus lamp direction rectilinear movement forward, the focal beam spot diameter contracting of laser beam is big；
When travel mechanism drives it to move linearly to manual Zooming expander direction, the focal beam spot of laser beam is straight
Footpath diminishes.The utility model introduces said structure, changes mobile concavees lens in light path by travel mechanism
Diverse location, thus change the diameter that laser beam enters condenser lens, final change processes laser in plane
Beam diameter, this process is automatically performed by industrial computer control servomotor, it is not necessary to manually regulate, simply just
Just, it is easy to accomplish.
The utility model uses said structure, realizes the mode of dynamic focusing in the process of part,
Specific requirement control corresponding actions according to part to be processed, the dynamic part to be processed difference that changes is processed
The spot diameter of region laser beam, thus reach the fast precise manufacture of the identical processing characteristics of zones of different.
The utility model, by the subregion rapid melting shaping to processing part, is i.e. divided into housing portion to scan
With kernel portion scanning.When inside parts is processed, it is not necessary to consider surface roughness problem, use big light
The processing mode of spot, high power and high speed；When the treatment of surfaces of components, with surface roughness as target,
Use the processing mode of small light spot, smaller power and less speed；This processing mode both can improve processing
Speed, can obtain again the part that interior solid degree is high, surface accuracy is high, efficiently solves current swashing
Light increases material and manufactures the problems and disadvantages existing for equipment and preparation technology thereof.
In sum, the utility model technological means is simple and easy to do, is skillfully constructed, and is possible not only to make laser
Bundle is when machining area interscan, and laser facula all vernier focusings are in processing plane, it is ensured that laser light
Spot has higher energy density, and by way of dynamic focusing, makes laser beam outside scanning part
When contouring and internal entity, different focal beam spot sizes and laser power can be used, not only significantly carry
The high performance of forming part, precision, and substantially increase the speed of forming parts.
Brief description
Fig. 1 is the part process darkening spot optical scanner structural representation of the utility model selective laser
Figure.
Fig. 2 is the schematic diagram of metal parts machined surface to be processed；The shape of design of part shown in figure, only
It is a citing.
Fig. 3 is laser facula schematic diagram, and wherein dotted portion is small light spot.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.The utility model discloses a kind of selective laser part process darkening spot
Optical scanner, mainly includes that industrial computer the 1st, laser instrument the 2nd, manual Zooming expander is the 3rd, mobile recessed
Mirror the 4th, prefocusing mirror the 5th, galvanometer the 6th, rear focus lamp 7；Described laser instrument 2 light path successively connects manually change
The 3rd, power beam expansion lens moves concavees lens the 4th, prefocusing mirror the 5th, galvanometer the 6th, rear focus lamp 7；I.e. laser beam 8 by
Laser instrument 2 sends and sequentially passes through manual Zooming expander and the 3rd, moves concavees lens the 4th, prefocusing mirror and the 5th, shake
Mirror the 6th, rear focus lamp 7 simultaneously reaches processing plane 9 (processing platform)；
Described mobile concavees lens 4 are arranged in a travel mechanism, are driven it along manually change by travel mechanism
Optical axis between power beam expansion lens 3 and prefocusing mirror 5 makees straight-line displacement, or makees continuous reciprocating linear and move；
When travel mechanism drives its focus lamp 5 direction rectilinear movement forward, the spot diameter of laser beam 8 becomes big；
When travel mechanism drives it to move linearly to manual Zooming expander 3 direction, the hot spot of laser beam 8 is straight
Footpath diminishes；
Described industrial computer 1 telecommunication connecting laser 2 and travel mechanism.
Described travel mechanism includes that the 11st, slide block that the 12nd, guide rail be arranged on guide rail 12 is arranged on slide block 11
On drive rod 14, and drive the servomotor 13 of this slide block 11 position of movement on guide rail 12；
Described mobile concavees lens 4 are arranged on drive rod 14, move when industrial computer 1 controls servomotor 13
When making, servomotor 13, according to the instruction of industrial computer 1, drives slide block 11 to move on guide rail 12, makes
The axis direction synchronizing moving at guide rail 12 for the drive rod 14 is followed in mobile concavees lens 4 synchronization.Therefore pass through
Mobile concavees lens 4 are constantly mobile on optical axis shifts one's position, to meet the processing request of part.
Laser beam, after prefocusing mirror 5 focusing, is converted into directional light by diverging light, and passes through galvanometer 6
Light inlet to enter galvanometer 6 internal.In process, industrial computer 1 controls the internal X-axis of galvanometer 6 and Y
The deflection of two groups of eyeglasses of axle, thus realize laser beam for being scanned motion in X-direction and Y-direction.
Processing plane 9 (i.e. processing platform) is machine-shaping region.When processing is carried out, pre-on processing platform
Putting layer of metal powder, then laser beam 8 is carrying out constituency scanning fusing to this layer of powder, circulates with this
Carrying out, final molding goes out complete part.
Described guide rail 12 is external screw thread screw mandrel, and slide block 11 is for the internal thread coordinating with external screw thread screw mandrel
Slide block.
The guide rail being respectively arranged at two ends with for limiting slide block 11 shift motion on guide rail of described guide rail 12
Stop 10.
Described guide rail 12 be also arranged above one for indicating the rule of mobile concavees lens 4 position.
Control unit centered on industrial computer 1, after processing the part data importing, controls as requested
Laser instrument 2 processed carries out transmission and the cut out of laser beam 8, controls travel mechanism simultaneously and drives mobile concavees lens 4
Shift position, carry out spot size adjustment to laser beam 8, and galvanometer 6 and processing platform and its
Machine-shaping process is completed under the coordinated of his mechanism.Industrial computer 1 meeting real-time reception and analysis simultaneously sets
The signal that standby each position gathers, sends the drive mechanism instructing in control equipment after treatment and makes a response,
To ensure stablizing of forming process.
After forming process starts, laser instrument 2 is launched laser beam 8 under the control of industrial computer 1 and is become for part
Melting metal powder during type provides end energy；When the zones of different of part is processed, industrial computer 1 can root
Adjust laser power according to process data information control laser instrument 2, such as the central area at processing part (i.e.
Kernel) when provide high-power laser beam 8, process fringe region (shell) when then suitably reduce laser
The power of bundle 8, thus realize that subregion becomes the processing of energy density, the ability of laser instrument can be made full use of,
Whole forming process can be rapidly completed again, shaping efficiency is provided.
The multiplication factor of manual Zooming expander 3 is 2-6 times, which determines focusing laser beam focus and puts down Jiao
Position, face spot diameter, when needing very fine hot spot processing part, putting of manual Zooming expander
Big multiple is 4-6 times；When needing bigger laser facula, the multiplication factor of manual Zooming expander is
2-3 times.
The defocusing amount size of hot spot, hot spot after the position decision focusing different on optical axis of mobile concavees lens 4
Size be directly proportional to defocusing amount, so by the mobile position on optical axis for the concavees lens 4 of control, permissible
Reach the purpose (as shown in the dotted portion in Fig. 3) of control processing plane spot size.Prefocusing mirror 5
The laser beam being dissipated by mobile concavees lens 4 is converted into directional light, the now diameter of directional light light beam
It is not more than 30mm.
The fusing of the utility model selective laser manufactures metal parts process darkening spot optical scanning method such as
Under:
Mainly include housing portion scanning step and the kernel portion scanning step of part to be processed.
Step (1): the housing portion scanning step of part to be processed
Before processing, first adjust laser beam 8 so that it is the hot spot in processing plane is the thinnest；
When processing part housing portion 16, industrial computer 1 controls servomotor 13 and carries movable slider 11 leading
Move on rail 12, make mobile concavees lens 4 synchronization follow position on the axis of guide rail 12 for the drive rod 14,
Having obtained the hot spot of required diameter, now the focus of laser beam 8 is exactly in the surface of processing plane 9,
Meanwhile, industrial computer 1 reduces the sweep speed of galvanometer 6 and the power output of laser instrument 2, to obtain
Surface accuracy satisfactory part shell；
Step (2): the kernel portion scanning step of part to be processed
After completing the scanning of step (1), carry out the scanning of part kernel portion 17, now, industrial computer 1
Again control servomotor 13 and with shift position on guide rail 12 for the movable slider 11, make mobile concavees lens
Position on the axis of guide rail 12 for the drive rod 14 is followed in 4 synchronizations, has obtained the kernel portion of processing part
The hot spot of required diameter, now the focus of laser beam 8 is exactly in the surface of processing plane 9, same with this
When, industrial computer 1 heightens the sweep speed of galvanometer 6 and the power output of laser instrument 2, to obtain internal cause
Density satisfactory part kernel.
Repetitive cycling step (1) and (2) process, can quickly obtain outside the part meeting required precision
Shell and the part kernel meeting consistency requirement, and then complete the rapid processing of one-piece parts.
The described industrial computer 1 of step (1) again controls servomotor 13 and carries movable slider 11 at guide rail 12
On shift position, the direction of this shift position be toward manual Zooming expander 3 direction rectilinear movement, from
And change the distance between mobile concavees lens 4 and manual Zooming expander 3；Mobile concavees lens 4 with manually
Distance between Zooming expander 3 is less, and the spot diameter of laser beam 8 is less, and now hot spot is just in
Out-of-focus appearance (as shown in the dotted portion in Fig. 3).
The described industrial computer 1 of step (2) controls servomotor 13 and carries movable slider 11 to move on guide rail 12,
This direction moved is focus lamp 5 direction rectilinear movement forward, thus it is poly-with front to change mobile concavees lens 4
Distance between burnt mirror 5；Distance between mobile concavees lens 4 and prefocusing mirror 5 is less, laser beam 8
Spot diameter bigger.
As described above, just can preferably realize the utility model.
Embodiment of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from this reality
With the change made under novel Spirit Essence and principle, modification, replacement, combination, simplify, all should be
The substitute mode of equivalence, is included within protection domain of the present utility model.
Claims (5)
1. a selective laser part process darkening spot optical scanner, it is characterised in that: include
Industrial computer (1), laser instrument (2), manual Zooming expander (3), mobile concavees lens (4), prefocusing
Mirror (5), galvanometer (6), rear focus lamp (7)；
Described laser instrument (2) light path successively connect manual Zooming expander (3), mobile concavees lens (4),
Prefocusing mirror (5), galvanometer (6), rear focus lamp (7)；I.e. laser beam (8) is sent out by laser instrument (2)
Go out and sequentially pass through manual Zooming expander (3), mobile concavees lens (4), prefocusing mirror (5), galvanometer
(6), rear focus lamp (7) and reach processing plane (9)；
Described mobile concavees lens (4) are arranged in a travel mechanism, are driven it along manually by travel mechanism
Optical axis between Zooming expander (3) and prefocusing mirror (5) makees straight-line displacement, or makees continuously reciprocal
Rectilinear movement；When travel mechanism drives its focus lamp (5) direction rectilinear movement forward, laser beam (8)
Spot diameter become big；When travel mechanism drives it to move linearly to manual Zooming expander (3) direction,
The spot diameter of laser beam (8) diminishes；
Described industrial computer (1) telecommunication connecting laser (2) and travel mechanism.
2. selective laser part process darkening spot optical scanner according to claim 1, its
Be characterised by: described travel mechanism includes guide rail (12), the slide block (11) that is arranged on guide rail (12),
The drive rod (14) being arranged on slide block (11), and drive this slide block (11) on guide rail (12)
The servomotor (13) of the position of movement；
Described mobile concavees lens (4) are arranged on drive rod (14), when industrial computer (1) controls servo
During motor (13) action, servomotor (13), according to the instruction of industrial computer (1), drives slide block (11)
Upper mobile at guide rail (12), make mobile concavees lens (4) synchronization follow drive rod (14) in guide rail (12)
Axis direction synchronizing moving.
3. selective laser part process darkening spot optical scanner according to claim 2, its
Be characterised by: described guide rail (12) is external screw thread screw mandrel, slide block (11) for with external screw thread screw mandrel
The internal thread slide block coordinating.
4. selective laser part process darkening spot optical scanner according to claim 2, its
It is characterised by: being respectively arranged at two ends with of described guide rail (12) moves on guide rail for limiting slide block (11)
The guide rail stop (10) of dynamic stroke.
5. selective laser part process darkening spot optical scanner according to claim 4, its
Be characterised by: described guide rail (12) to be also arranged above one in place for indicating mobile concavees lens (4) institute
The rule put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338118.XU CN205614195U (en) | 2016-04-20 | 2016-04-20 | Laser election district parts machining process becomes facula optical scan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338118.XU CN205614195U (en) | 2016-04-20 | 2016-04-20 | Laser election district parts machining process becomes facula optical scan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205614195U true CN205614195U (en) | 2016-10-05 |
Family
ID=57027771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620338118.XU Active CN205614195U (en) | 2016-04-20 | 2016-04-20 | Laser election district parts machining process becomes facula optical scan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205614195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
-
2016
- 2016-04-20 CN CN201620338118.XU patent/CN205614195U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105750728A (en) | Light spot changing optical scanning method and device for selective laser part processing | |
| CN201783759U (en) | Optical fiber laser or disc laser dynamic focusing scanning spot trajectory processing system | |
| CN213276097U (en) | Zoom optical system and laser cutting head that focus volume linkage | |
| CN109239900B (en) | Full-automatic rapid focusing method for large-field acquisition of microscopic digital image | |
| CN105478767A (en) | Device and method for obtaining metal dental prosthesis through laser 3D printing | |
| CN101913024A (en) | System and method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser | |
| KR20180125564A (en) | An imaging optical system for processing a material by laser emitting means and a laser machining head | |
| CN203124969U (en) | Laser micro machining equipment based on adaptive optics | |
| CN104730702A (en) | Micro-scanning platform, shooting method and work area flatness calibration method | |
| CN203084281U (en) | Fully-automatic microscope imaging device | |
| CN113649595B (en) | Annular light spot optical system for metal SLM printing and printing method | |
| CN103552244A (en) | 3D (three-dimensional) laser printing device based on multi-laser-device scanning system | |
| JP7037262B2 (en) | How to speed up modeling of digital slide scanners | |
| CN101750723A (en) | Zoom infrared optical system, zooming device and manufacturing method thereof | |
| CN106019550A (en) | High speed micro scanning dynamic focusing device and focusing tracking method | |
| CN103698879A (en) | Real-time focusing device and real-time focusing method | |
| CN112059404B (en) | Superfine single crystal optical fiber cladding processing method and system | |
| CN106773025A (en) | Focusing lens and lens vibrating type laser scanning system | |
| CN109158600A (en) | The device and method of synchronous powder feeding system laser gain material manufacture hot spot and amyloid plaque relative position Auto-matching | |
| CN205614195U (en) | Laser election district parts machining process becomes facula optical scan device | |
| CN113333942A (en) | Machining head with laser focus automatic focusing function and machining method thereof | |
| CN108254995A (en) | A kind of big zoom camera lens Atomatic focusing method and system | |
| CN114559167A (en) | Laser cutting head zooms based on inverse piezoelectric effect adjusts | |
| CN208895373U (en) | The confocal focusing optical system of dual wavelength | |
| CN218341014U (en) | Optical path system of additive manufacturing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |