CN216575528U - Laser splicing correction device - Google Patents
Laser splicing correction device Download PDFInfo
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- CN216575528U CN216575528U CN202123203977.8U CN202123203977U CN216575528U CN 216575528 U CN216575528 U CN 216575528U CN 202123203977 U CN202123203977 U CN 202123203977U CN 216575528 U CN216575528 U CN 216575528U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a laser splicing correction device, which relates to the technical field of additive manufacturing and comprises a correction device main body and a signal transmission assembly, wherein a laser position positioning circle is arranged on the upper surface of the correction device main body, and position detectors for receiving laser are arranged on two sides of the laser position positioning circle. The laser splicing correction device provided by the utility model has the advantages that the center of a laser position positioning circle is moved to the red light center of the laser to complete initial positioning by moving the main body of the correction device, so that the laser can accurately enter the light beam thermosensitive collecting surface of the position detector in the correction process, and the information collected by the position detector is transmitted out by the signal transmission assembly; and collecting actual position information of the same scanning point in the light beam heat-sensitive collecting surface of the detectors at the incident positions of different lasers in sequence, finishing position calibration according to the information, and finally realizing perfect splicing of light spots of different lasers.
Description
Technical Field
The utility model relates to the technical field of additive manufacturing, in particular to a laser splicing correction device.
Background
Under the trend of high-speed development of industrial technology, various metal additive manufacturing methods are continuously emerging, selective laser melting technologies such as SLM (selective laser melting), SLS (selective laser melting), laser metal direct deposition technology DLMD (direct laser deposition) and the like are continuously mature, and large-scale industrial application is more and more extensive.
With the wide application of metal 3D printing, the requirement on efficiency is higher and higher. The multi-laser upgrading forming process for realizing high-efficiency, large-size and batch manufacturing by metal 3D printing is a new trend of powder bed laser forming process development, and the lapping precision of a laser lapping area directly influences the surface quality and mechanical property of parts.
The conventional laser splicing correction device mostly uses a photosensitive beam position detector, and a detection surface of the photosensitive beam position detector is extremely easy to be damaged by high-power laser, and a divergent mirror is required to be installed above the detection surface, so that the photosensitive laser splicing correction device is complex in structure, large in size, extremely easy to be influenced by dust particles and light sources in the environment, low in measurement precision and short in service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a laser splicing correction device to solve the technical problems of complex structure and large volume of the conventional correction device.
The utility model provides a laser splicing correction device which comprises a correction device main body and a signal transmission assembly, wherein a laser position positioning circle is arranged on the upper surface of the correction device main body, and position detectors for receiving laser are arranged on two sides of the laser position positioning circle;
the signal transmission assembly is used for being connected with the position detector and receiving the information transmitted by the position detector, and the information is processed and then transmitted out of the laser splicing correction device.
In an alternative embodiment, the correcting device main body comprises a lower mounting plate and a mounting cover arranged on the mounting plate, and the mounting cover and the lower mounting plate are matched to form a mounting cavity; the signal transmission assembly and the position detector are arranged in the mounting cavity.
In an optional embodiment, the laser position locating circle is arranged on the mounting cover, and a through hole corresponding to the position detector is further arranged on the mounting cover; the perforation uncovers the position detector and enables the position detector to receive laser light; and a dustproof cover is arranged on the position detector.
In an optional implementation mode, the signal transmission assembly comprises a signal processor and an adapter, each position detector is connected with one signal processor, two signal processors are connected with the same adapter, and one end of the adapter is exposed outside the correction device body.
In an optional implementation manner, the signal transmission assembly further includes a two-in-one connecting piece, the two signal processors are connected with the two-in-one connecting piece, and the adapter is connected with the two-in-one connecting piece.
In an optional embodiment, the signal processor further comprises two insulating mounting plates, and the two insulating mounting plates are respectively arranged on the upper side and the lower side of the signal processor.
In an alternative embodiment, the device further comprises a first mounting plate and a second mounting plate, wherein the first mounting plate is used for fixing the one-to-two connecting piece on the lower mounting plate; the second mounting panel is used for making the adapter fix on the mounting panel down.
In an alternative embodiment, the lower end of the lower mounting plate is provided with a heat sink for dissipating the heat after laser conversion.
In an optional embodiment, a fixing pin is arranged on the lower mounting plate, a mounting hole matched with the fixing pin is arranged on the mounting cover, and the fixing pin is matched with the mounting hole to enable the lower mounting plate to be connected with the mounting cover.
In an alternative embodiment, a locator is provided on one side of the correction device body.
The laser splicing correction device provided by the utility model has the advantages that the center of a laser position positioning circle is moved to the red light center of the laser to complete initial positioning by moving the correction device main body, so that the laser can accurately enter the light beam heat-sensitive collecting surface of the position detector in the correction process, and the signal transmission assembly transmits information collected by the position detector; and collecting actual position information of the same scanning point in the light beam heat-sensitive collecting surfaces of the detectors at the incident positions of different lasers in sequence, finishing position calibration according to the information, and finally realizing perfect splicing among light spots of different lasers.
Compared with the prior art, the laser splicing correction device does not need to be provided with a divergent mirror, reduces the volume of the whole laser splicing correction device, and has a simpler structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a laser splicing correction device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of the laser splicing correction device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a lower mounting plate of the laser splicing correction device shown in FIG. 1;
FIG. 4 is a schematic structural diagram illustrating a usage status of the laser splicing correction device shown in FIG. 1;
fig. 5 is a schematic structural diagram of the laser oscillator group shown in fig. 4.
Icon: 100-a calibration device body; 101-mounting a cover; 102-a lower mounting plate; 200-laser position locating circle; 300-position detector; 400-punching; 500-a locator; 600-a signal processor; 601-an insulating mounting plate; 700-a second mounting plate; 800-adapter; 900-a heat sink; 110-one-to-two connection; 111-a first mounting plate; 120-a fixed pin; 130-a laser vibrating mirror group; 140-forming a cylinder side plate; 150-forming the cylinder base plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 5, the present invention provides a laser splicing correction device, which includes a correction device main body 100 and a signal transmission assembly, wherein a laser position positioning circle 200 is disposed on an upper surface of the correction device main body 100, and position detectors 300 for receiving laser are disposed on two sides of the laser position positioning circle 200;
the signal transmission component is used for being connected with the position detector 300, receiving the information transmitted by the position detector 300, processing the information and transmitting the processed information out of the laser splicing correction device.
The correcting device main body 100 is provided with a laser position positioning circle 200, the center of red light of a laser (laser galvanometer) is superposed with the circle center of the laser position positioning circle 200, at the moment, the initial positioning of a calibration area of the laser splicing correcting device on the additive manufacturing equipment is completed, the laser emitted by the laser can be accurately incident into a position detector 300, the position detector 300 is provided with a light beam heat-sensitive collecting surface, and the laser is incident on the light beam heat-sensitive collecting surface; and sequentially operating different lasers to enable the lasers to sequentially enter the light beam thermosensitive collecting surface and collect actual position information of the same scanning point in the incident light beam thermosensitive collecting surface, finishing position calibration according to the information, and finally realizing perfect splicing among light spots of different lasers.
Referring to fig. 2, in an alternative embodiment, the calibration device body 100 includes a lower mounting plate 102 and a mounting cover 101 disposed on the mounting plate, the mounting cover 101 and the lower mounting plate 102 cooperating to form a mounting cavity; the signal transmission assembly and the position detector 300 are arranged in the installation cavity.
Referring to fig. 1 and 2, in an alternative embodiment, the laser position locating circle 200 is disposed on the mounting cover 101, and a through hole 400 corresponding to the position detector 300 is further disposed on the mounting cover 101; the through hole 400 exposes the position detector 300 and enables the position detector 300 to receive laser, and a dust cover is disposed on the position detector 300.
In some embodiments, the laser position locating circle 200 is generally engraved on the mounting cover 101, the lower mounting plate 102 and the mounting cover 101 form a mounting cavity, the position detector 300 is disposed in the mounting cavity, and laser emitted by the laser can be incident on the position detector 300 through the through hole 400; the signal transmission assembly is also located in the installation cavity and used for processing the information collected on the position detector 300 and transmitting the information, and therefore an operator can correct the actual position information collected by the laser splicing correction device.
In order to avoid dust on the light beam heat-sensitive collecting surface of the position detector 300 from affecting the service life of the position detector 300; a dust cover is provided on the position detector 300, and the dust cover prevents the exposure of the light beam heat-sensitive collecting surface of the position detector 300 at the non-operating time.
Referring to fig. 3, in an alternative embodiment, the signal transmission assembly includes a signal processor 600 and an adapter 800, each of the position detectors 300 is connected to one of the signal processors 600, two of the signal processors are connected to the same adapter 800, and one end of the adapter 800 is exposed outside the calibration apparatus main body 100.
In an optional embodiment, the signal transmission assembly further includes a two-in-one connector 110, two signal processors 600 are connected to the two-in-one connector 110, and the adapter 800 is connected to the two-in-one connector 110.
In an alternative embodiment, the signal processor 600 further includes two insulating mounting plates 601, and the two insulating mounting plates 601 are respectively disposed on the upper and lower sides of the signal processor 600.
In an alternative embodiment, the device further comprises a first mounting plate 111 and a second mounting plate 700, wherein the first mounting plate 111 is used for fixing the one-to-two connecting piece 110 on the lower mounting plate 102; the second mounting plate 700 is used to secure the adapter 800 to the lower mounting plate 102.
The two position detectors 300 are respectively connected with a signal processor 600, and the signals collected by the position detectors 300 are processed by the signal processor 600 and then transmitted; one drags two connecting pieces 110 to be connected with two signal processor 600 simultaneously, and two signal processor 600 transmit adapter 800 through one drags two connecting pieces 110, and this adapter 800 is connected with external device again, and then the data that this laser concatenation correcting unit gathered can be transmitted away, and this adapter 800 generally adopts the USB interface.
In order to firmly fix the signal processor 600 on the lower mounting plate 102, the insulating mounting plate 601 is arranged on the lower mounting plate 102, the signal processor 600 is fixedly arranged on the insulating mounting plate 601, and further the signal processor 600 is fixed, because the insulating mounting plates 601 are arranged on the upper side and the lower side of the signal processor 600, the signal processor 600 is prevented from directly contacting with the mounting cover 101 and the lower mounting plate 102.
Similarly, the lower mounting plate 102 is provided with a first mounting plate 111 and a second mounting plate 700, so that the one-to-two connecting piece 110 and the adapter 800 are fixed; generally, the one-to-two connector 110 has a USB interface, i.e., the two signal processors 600 are connected to the one-to-two connector 110 through the USB interface.
Referring to fig. 2 and 4, in an alternative embodiment, the lower end of the lower mounting plate 102 is provided with a heat sink 900, and the heat sink 900 is used for dissipating heat after laser conversion.
In order to dissipate heat converted by laser incident on the light beam heat-sensitive collecting surface of the laser splicing correction device through the radiating fins 900, the phenomenon that the temperature in the mounting cavity is too high to affect the service life of other parts is avoided.
In an alternative embodiment, a fixing pin 120 is disposed on the lower mounting plate 102, a mounting hole matched with the fixing pin 120 is disposed on the mounting cover 101, and the fixing pin 120 is matched with the mounting hole to connect the lower mounting plate 102 and the mounting cover 101.
In order to enable the installation cover 101 to be accurately installed on the lower installation plate 102 so as to enable the through hole 400 of the installation cover 101 to be more accurately positioned relative to the position detector 300, a plurality of fixing pins 120 are provided on the lower installation plate 102, and a plurality of installation holes are provided on the installation cover 101; the fixing pins 120 are engaged with the mounting holes to facilitate and precisely fixing the mounting cover 101 to the lower mounting plate 102.
Referring to fig. 1 and 4, in an alternative embodiment, a locator 500 is provided at one side of the correction device body 100.
Referring to fig. 5, the laser vibrating mirror set 130 includes a plurality of laser vibrating mirrors, which are located above the laser splicing correction device to deflect the laser beam emitted by the laser device, so that the laser focusing point with a certain power density moves on the marking material as required, thereby leaving a permanent mark on the surface of the material.
The additive manufacturing equipment comprises a forming cylinder base plate 150 and forming cylinder side plates 140, wherein a correcting device main body 100 is positioned above the forming cylinder base plate 150, one side of the correcting device main body 100 is provided with a positioner 500, the positioner 500 is in contact with the side surfaces of the forming cylinder side plates 140, and the correcting device main body 100 is lightly pressed and clamped between the two forming cylinder side plates 140; the height of the upper surface of the correcting device main body 100 is consistent with the height of the scanning surface of the forming cylinder base plate 150 by adjusting the height of the forming cylinder base plate 150; then the height of the forming cylinder base plate 150 is adjusted upwards to ensure that the height of the light beam heat-sensitive collecting surface of the position detector 300 is consistent with the height of the scanning surface; the height of the beam heat-sensitive collecting surface and the upper surface of the correction device body 100 is L, and the elevation height of the molding cylinder base plate 150 is adjusted to L, so that the beam heat-sensitive collecting surface and the scanning surface are identical in height.
This is because the height of the beam thermosensitive collecting surface cannot be accurately observed, and the beam thermosensitive collecting surface and the scanning surface are on the same plane by aligning the upper surface of the alignment correction apparatus main body 100 with the scanning surface of the forming cylinder substrate 150 and then raising the height of the forming cylinder substrate 150 by L. And starting laser indicating light, and moving the main body of the calibration device until the center of the red light falls on the center of the laser position positioning circle 200, so as to ensure that the laser can accurately enter the light beam heat-sensitive collecting surface of the position detector 300 in the calibration process. And operating the control system, sequentially collecting actual position information of different lasers when the lasers enter the same scanning point in the collecting surface, finishing position calibration according to the information, and finally realizing perfect splicing of light spots of the different lasers.
According to the laser splicing correction device provided by the utility model, the center of the laser position positioning circle 200 is moved to the red light center of the laser to complete initial positioning by moving the correction device main body 100, so that the laser can accurately enter the light beam heat-sensitive collecting surface of the position detector 300 in the correction process, and the signal transmission assembly transmits the information collected by the position detector 300; and collecting actual position information of the same scanning point in the light beam heat-sensitive collecting surface of the detector 300 at the incident position of different lasers in sequence, finishing position calibration according to the information, and finally realizing perfect splicing among light spots of different lasers.
Compared with the prior art, the light spot splicing and correcting device of the laser does not need to be provided with a diverging mirror, reduces the volume of the whole laser splicing and correcting device, and has a simpler structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The laser splicing correction device is characterized by comprising a correction device main body (100) and a signal transmission assembly, wherein a laser position positioning circle (200) is arranged on the upper surface of the correction device main body (100), and position detectors (300) used for receiving laser are arranged on two sides of the laser position positioning circle (200);
the signal transmission assembly is used for being connected with the position detector (300), receiving the information transmitted by the position detector (300), processing the information and transmitting the processed information out of the laser splicing correction device.
2. The laser splicing correction device of claim 1, wherein the correction device body (100) comprises a lower mounting plate (102) and a mounting cover (101) arranged on the mounting plate, and the mounting cover (101) and the lower mounting plate (102) are matched to form a mounting cavity; the signal transmission assembly and the position detector (300) are arranged in the mounting cavity.
3. The laser splicing correction device according to claim 2, wherein the laser position locating circle (200) is arranged on the mounting cover (101), and a through hole (400) corresponding to the position detector (300) is further arranged on the mounting cover (101); the perforation (400) uncovers the position detector (300) and enables the position detector (300) to receive laser light; and a dustproof cover is arranged on the position detector (300).
4. The laser splicing correction device of claim 2, wherein the signal transmission assembly comprises a signal processor (600) and an adapter (800), each of the position detectors (300) is connected with one of the signal processors (600), two of the signal processors are connected with the same adapter (800), and one end of the adapter (800) is exposed out of the correction device body (100).
5. The laser splice correction device of claim 4, wherein the signal transmission assembly further comprises a two-by-one connector (110), two of the signal processors (600) are connected to the two-by-one connector (110), and the adapter (800) is connected to the two-by-one connector (110).
6. The laser splicing correction device according to claim 4, further comprising two insulating mounting plates (601), wherein the two insulating mounting plates (601) are respectively arranged at the upper side and the lower side of the signal processor (600).
7. The laser splicing correction device of claim 5, further comprising a first mounting plate (111) and a second mounting plate (700), wherein the first mounting plate (111) is used for fixing the one-to-two connector (110) on the lower mounting plate (102); the second mounting plate (700) is used for fixing the adapter (800) on the lower mounting plate (102).
8. The laser splicing correction device of claim 2, wherein the lower end of the lower mounting plate (102) is provided with a heat sink (900), and the heat sink (900) is used for dissipating heat after laser conversion.
9. The laser splicing correction device according to claim 3, wherein the lower mounting plate (102) is provided with a fixing pin (120), the mounting cover (101) is provided with a mounting hole matched with the fixing pin (120), and the fixing pin (120) is matched with the mounting hole to connect the lower mounting plate (102) and the mounting cover (101).
10. The laser splicing correction device of claim 1, wherein a locator (500) is provided at one side of the correction device body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203977.8U CN216575528U (en) | 2021-12-17 | 2021-12-17 | Laser splicing correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203977.8U CN216575528U (en) | 2021-12-17 | 2021-12-17 | Laser splicing correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216575528U true CN216575528U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123203977.8U Active CN216575528U (en) | 2021-12-17 | 2021-12-17 | Laser splicing correction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216575528U (en) |
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2021
- 2021-12-17 CN CN202123203977.8U patent/CN216575528U/en active Active
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