CN207464468U - The processing unit (plant) of cutting is carried out to casting sand type using Linear Laser source - Google Patents
The processing unit (plant) of cutting is carried out to casting sand type using Linear Laser source Download PDFInfo
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- CN207464468U CN207464468U CN201721223557.7U CN201721223557U CN207464468U CN 207464468 U CN207464468 U CN 207464468U CN 201721223557 U CN201721223557 U CN 201721223557U CN 207464468 U CN207464468 U CN 207464468U
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- convex lens
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- casting sand
- sand type
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Abstract
The utility model discloses a kind of processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source, can efficiently to casting sand type into line width and depth be millimetre-sized cutting, and then outwardly projecting word, symbol or icon indicia are formed in cast(ing) surface.The utility model is scanned casting sand type using by laser light source and the linear light sources that optical element combination is formed, is quickly obtained word, symbol or the pattern being inwardly recessed based on casting sand type surface according to laser ablation principle.The width of cutting is controlled by adjusting the relative position between optical element, the depth of cutting and rate are controlled by changing working frequency, output energy and the time interval of sample movement of laser.The utility model is realized carries out casting sand type quick cutting by linear light sources, and process is contactless, is loaded without mechanical force, simple and efficient.
Description
Technical field
The utility model belongs to field of laser processing, and in particular to a kind of that casting sand type is carved using Linear Laser source
The processing unit (plant) of slot.
Background technology
Laser is since birth, and by the development of nearly 60 years, laser application technique becomes in various fields could not
The key technology of replacement, wherein laser processing technology penetrate into many high-technology fields more and morely, and start gradually
Replace or certain traditional processing industries are transformed.Laser Processing have many advantages, such as that non-contact, precision is high, efficient, at present more into
Ripe laser processing technology mainly has laser cutting technique, laser marking technology, laser drilling etc..These technologies can be used
In various metals or nonmetallic processing.
Many occasions in sand casting field need that product is marked, and such as cast batch, date, manufacturer's trade mark
Deng.Traditional way is realized using a parent plate containing label information.But these parent plates can produce in casting process
Raw abrasion, forms defect, and then the label of casting and forming is made to obscure or even influence casting quality.In addition, when the abrasion of parent plate
When reaching a certain level or when needing replacing label word, symbol, pattern, need to replace parent plate or separately in time
Parent plate is manufactured, this can all increase the manufacturing cycle, and then influence cost-effectiveness.W. Weimann et al. proposed three kinds in 1994
Method is marked casting sand type：（1）Casting sand type is suppressed using the punch die with indicia patterns, it will be corresponding
Label is converted to casting sand type surface；（2）Scribing is carried out using ultrasonic method；（3）Scribing is carried out using laser beam.But W.
Weimann is only described in further detail first method, and points out to need strictly to control punching in specific implementation process
It is molded the dynamics of system.For latter two method, scribing is carried out in particular with laser beam, W. Weimann are not to specific implementation
Scheme is further elaborated.However, compared with first two method, carrying out scribing using laser has many advantages, such as：（1）It is right
The flatness requirement on casting sand type surface is low；（2）It can quickly be positioned；（3）Without die wear；（4）It is loaded without mechanical force；
（5）It is convenient and efficient to replace label.Therefore, it is delineated using laser and provides corresponding embodiment and be of great significance and answer
Use prospect.
Invention content
The purpose of this utility model is to provide a kind of processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source,
Solve the problems, such as conventional method parent plate is easy to wear and dot laser source efficiency is low etc..
Realize the utility model aim technical solution be：It is a kind of that casting sand type is carved using Linear Laser source
The processing unit (plant) of slot, including laser, diaphragm, the first cylindrical convex lens, the second cylindrical convex lens, high threshold total reflective mirror, casting
Sand mold, the first one-dimensional motorized precision translation stage, the second one-dimensional motorized precision translation stage and two-dimentional motorized precision translation stage.
Common optical axis sets gradually laser, diaphragm, the first cylindrical convex lens, the second cylindrical convex lens and high threshold and is all-trans
Mirror, the first cylindrical convex lens are placed on the first one-dimensional motorized precision translation stage, and the second cylindrical convex lens is placed in the second one-dimensional electric translation
On platform, the first one-dimensional motorized precision translation stage, the second one-dimensional motorized precision translation stage moving direction be parallel toxAxis, high threshold total reflective mirror make
The direction of propagation of the laser beam of laser emitting by-xBecome-y, the upper surface of casting sand type is parallel tozoxPlane, and its upper table
Face is located on the focal plane of the second cylindrical convex lens, and casting sand type is placed on two-dimentional motorized precision translation stage, two-dimentional motorized precision translation stage energy
It is enough to be parallel toxIt axis and is parallel tozIt is moved in the both direction of axis, above-mentioned laser, diaphragm, the first cylindrical convex lens, second
Cylindrical convex lens, high threshold total reflective mirror are coaxially contour.
Compared with prior art, remarkable advantage is the utility model：（1）Cutting is carried out to casting sand type using laser,
Whole process is contactless, is loaded without mechanical force；（2）Cutting is carried out using the linear light sources with certain length, compared to ruler
Very little limited point light source, can greatly improve processing speed；（3）The length of used linear light sources can be by adjusting optics member
The relative position of device is adjusted；（4）The corresponding cutting rate of the utility model and depth can pass through the work frequency of laser
Rate exports the time interval of energy and sample movement to control.
Description of the drawings
Fig. 1 is the index path for the processing unit (plant) that the utility model carries out casting sand type using Linear Laser source cutting.
Fig. 2 is the groove laser machined using processing unit (plant) described in the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source of the utility model, packet
Include laser 1, diaphragm 2, the first cylindrical convex lens 3, the second cylindrical convex lens 4, high threshold total reflective mirror 5, casting sand type 6, first
One-dimensional motorized precision translation stage 7, the second one-dimensional motorized precision translation stage 8, two-dimentional motorized precision translation stage 9.
It is complete that common optical axis sets gradually laser 1, diaphragm 2, the first cylindrical convex lens 3, the second cylindrical convex lens 4 and high threshold
Anti- mirror 5, the first cylindrical convex lens 3 are placed on the first one-dimensional motorized precision translation stage 7, and the second cylindrical convex lens 4 is placed in the second one-dimensional electricity
On dynamic translation stage 8, the first one-dimensional motorized precision translation stage 7, the second one-dimensional motorized precision translation stage 8 moving direction be parallel toxAxis, high threshold
Total reflective mirror 5 make laser 1 be emitted laser beam the direction of propagation by-xBecome-y, the upper surface of casting sand type 6 is parallel tozoxIt is flat
Face, and its upper surface is located on the focal plane of the second cylindrical convex lens 4, casting sand type 6 is placed on two-dimentional motorized precision translation stage 9, and two
Dimension motorized precision translation stage 9 can be parallel toxIt axis and is parallel tozIt is moved in the both direction of axis, above-mentioned laser 1, diaphragm 2,
One cylindrical convex lens 3, the second cylindrical convex lens 4, high threshold total reflective mirror 5 coaxial contour, laser 1, the first one-dimensional electric translation
The operation of platform 7, the second one-dimensional motorized precision translation stage 8, two-dimentional motorized precision translation stage 9 is controlled by computer.（WhereinzAxis perpendicular to paper,
Direction is outside,yFor axis along paper, direction is upward）
The axial meridian of first cylindrical convex lens 3 and the second cylindrical convex lens 4 is orthogonal, and the first cylindrical convex lens
3 focal length is more than the second cylindrical convex lens 4.
The distance between first cylindrical convex lens 3 and high threshold total reflective mirror 5 are less than the focal length of the first cylindrical convex lens 3, the
The distance between two cylindrical convex lens 4 and high threshold total reflective mirror 5 are less than the focal length of the second cylindrical convex lens 4.
The position of first cylindrical convex lens 3 can may be alternatively located at the second column between 2 and second cylindrical convex lens 4 of diaphragm
Between face convex lens 4 and high threshold total reflective mirror 5.
First cylindrical convex lens 3 is changed relative to the second cylindrical convex lens 4 by mobile first one-dimensional motorized precision translation stage 7
Position, and then adjust the length for the Linear Laser light source for reaching casting sand type 6 surface, be finally reached the mesh of control cutting width
's.
The laser 1 for pulsewidth be less than 20ns, after line focus energy density higher than casting sand type ablation threshold, can repetition
All kinds of lasers of work, such as gas laser, solid state laser, semiconductor laser, optical fiber laser.
The high threshold total reflective mirror 5 has higher damage threshold, ensures it not by laser beam damage.
A kind of processing method based on the processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source, including following
Step：
Step 1, each device of adjusting make laser 1, diaphragm 2, the first cylindrical convex lens 3, the second cylindrical convex lens 4, high threshold
It is coaxial contour to be worth total reflective mirror 5.
Step 2, the aperture for reducing diaphragm 2, clip the edge part of 1 outgoing beam middle-range abaxial of laser farther out
Point.
Step 3, the angle for adjusting high threshold total reflective mirror 5 so that the laser beam after reflection is parallel to-yAxis direction.
Step 4 is being parallel to by the second second cylindrical convex lens 4 of the one-dimensional adjusting of motorized precision translation stage 8xPosition in axis direction
It puts so that casting sand type 6 is located on the focal plane of the second cylindrical convex lens 4.
Step 5, the width according to required processing groove, the first cylinder convex lens is adjusted by the first one-dimensional motorized precision translation stage 7
Mirror 3 is being parallel toxPosition in axis direction.
The mobile step of step 6, the shoot laser beam energy that laser 1 is set and pulse frequency, two-dimentional motorized precision translation stage 9
Long, mobile time interval and path.
Step 7 starts laser 1 and two-dimentional motorized precision translation stage 9, and cutting is carried out to casting sand type 6.
The utility model is described in further detail with reference to embodiment：
Embodiment 1：
A kind of processing method based on the processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source, including following
Step：
Step 1 builds the processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source, and wherein laser 1 uses
Nd:YAG Q-switched lasers（Wavelength 1064nm, pulsewidth 5ns, spot diameter 5.7mm, repetition rate 1-20Hz）；First cylinder is convex
Lens 3 use cylindrical convex lens of the focal length for 400mm；Second cylindrical convex lens 4 uses cylindrical convex lens of the focal length for 200mm；
Adjust each device and make laser 1, diaphragm 2, the first cylindrical convex lens 3, the second cylindrical convex lens 4, high threshold total reflective mirror 5 coaxial etc.
It is high.
Step 2, the aperture for reducing diaphragm 2 make its transmission diameter clip distance center in 1 outgoing beam of laser for 5mm
The marginal portion of optical axis farther out.
Step 3, the angle for adjusting high threshold total reflective mirror 5 so that the laser beam after reflection is parallel to-yAxis direction.
Step 4 is being parallel to by the second second cylindrical convex lens 4 of the one-dimensional adjusting of motorized precision translation stage 8xPosition in axis direction
It puts so that casting sand type 6 is located on the focal plane of the second cylindrical convex lens 4.
Step 5, the width according to required processing groove（1.6mm）, the first column is adjusted by the first one-dimensional motorized precision translation stage 7
Face convex lens 3 is being parallel toxPosition in axis direction.
Step 6 sets the shoot laser beam energy of laser 1 as 64.7mJ, pulse frequency 20Hz, two-dimentional electric translation
The moving step length of platform 9 be 200 μm, mobile time interval be 1.5s, path be along-xAxis direction moves 50 steps.
Step 7 starts laser 1 and two-dimentional motorized precision translation stage 9, and cutting is carried out to casting sand type 6.
Terminate above step after the groove of processing is measured and taken pictures as shown in Fig. 2, its width be 1.6mm, depth
For 1.5mm, length 10.5mm, required time 75s.
With reference to example it can be found that：It is processed using this laser processing device and method, whole process is contactless,
No mechanical force loading will not generate movie star to other positions of casting sand mold.In addition, carry out simple scanning, nothing using linear light sources
Picture point light source is needed to scan back and forth like that form the groove with one fixed width, greatly improve processing efficiency.
Claims (6)
1. a kind of processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source, it is characterised in that：Including laser
（1）, diaphragm（2）, the first cylindrical convex lens（3）, the second cylindrical convex lens（4）, high threshold total reflective mirror（5）, casting sand type（6）、
First one-dimensional motorized precision translation stage（7）, the second one-dimensional motorized precision translation stage（8）With two-dimentional motorized precision translation stage（9）；
Common optical axis sets gradually laser（1）, diaphragm（2）, the first cylindrical convex lens（3）, the second cylindrical convex lens（4）With high threshold
It is worth total reflective mirror（5）, the first cylindrical convex lens（3）It is placed in the first one-dimensional motorized precision translation stage（7）On, the second cylindrical convex lens（4）It puts
In the second one-dimensional motorized precision translation stage（8）On, the first one-dimensional motorized precision translation stage（7）, the second one-dimensional motorized precision translation stage（8）Mobile side
To being parallel toxAxis, high threshold total reflective mirror（5）Make laser（1）The direction of propagation of the laser beam of outgoing by-xBecome-y, casting model powder
Type（6）Upper surface be parallel tozoxPlane, and its upper surface is located at the second cylindrical convex lens（4）Focal plane on, casting sand type
（6）It is placed in two-dimentional motorized precision translation stage（9）On, two-dimentional motorized precision translation stage（9）It can be parallel toxIt axis and is parallel tozTwo of axis
It is moved on direction, above-mentioned laser（1）, diaphragm（2）, the first cylindrical convex lens（3）, the second cylindrical convex lens（4）, high threshold it is complete
Anti- mirror（5）It is coaxial contour.
2. the processing unit (plant) according to claim 1 for being carried out cutting to casting sand type using Linear Laser source, feature are existed
In：First cylindrical convex lens（3）With the second cylindrical convex lens（4）Axial meridian it is orthogonal, and the first cylinder is convex
Lens（3）Focal length be more than the second cylindrical convex lens（4）.
3. the processing unit (plant) according to claim 1 for being carried out cutting to casting sand type using Linear Laser source, feature are existed
In：First cylindrical convex lens（3）With high threshold total reflective mirror（5）The distance between be less than the first cylindrical convex lens（3）Coke
Away from the second cylindrical convex lens（4）With high threshold total reflective mirror（5）The distance between be less than the second cylindrical convex lens（4）Focal length.
4. the processing unit (plant) according to claim 1 for being carried out cutting to casting sand type using Linear Laser source, feature are existed
In：The laser（1）For pulsewidth be less than 20ns, after line focus energy density higher than casting sand type ablation threshold, can repetition work
All kinds of lasers made.
5. the processing unit (plant) for carrying out cutting to casting sand type using Linear Laser source according to claim 1 or 4, feature
It is：The laser（1）For gas laser, solid state laser, semiconductor laser or optical fiber laser.
6. the processing unit (plant) according to claim 1 for being carried out cutting to casting sand type using Linear Laser source, feature are existed
In the high threshold total reflective mirror（5）With higher damage threshold, ensure it not by laser beam damage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721223557.7U CN207464468U (en) | 2017-09-22 | 2017-09-22 | The processing unit (plant) of cutting is carried out to casting sand type using Linear Laser source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721223557.7U CN207464468U (en) | 2017-09-22 | 2017-09-22 | The processing unit (plant) of cutting is carried out to casting sand type using Linear Laser source |
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| Publication Number | Publication Date |
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| CN207464468U true CN207464468U (en) | 2018-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685197A (en) * | 2017-09-22 | 2018-02-13 | 南京理工大学 | The processing unit (plant) and method of cutting are carried out to casting sand type using Linear Laser source |
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2017
- 2017-09-22 CN CN201721223557.7U patent/CN207464468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685197A (en) * | 2017-09-22 | 2018-02-13 | 南京理工大学 | The processing unit (plant) and method of cutting are carried out to casting sand type using Linear Laser source |
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