CN107552983B - 3D welding machine - Google Patents
3D welding machine Download PDFInfo
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- CN107552983B CN107552983B CN201710919309.4A CN201710919309A CN107552983B CN 107552983 B CN107552983 B CN 107552983B CN 201710919309 A CN201710919309 A CN 201710919309A CN 107552983 B CN107552983 B CN 107552983B
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- 238000003466 welding Methods 0.000 title claims description 26
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 7
- 230000002950 deficient Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000010330 laser marking Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention improves the internal structure of a shell, and adds a monitor, a cutter and a cooling system to solve the defects of the prior art, prolongs the service life of the whole equipment while ensuring the yield, and the specific technical scheme comprises the shell, wherein one end of the shell is provided with a vibrating mirror cavity, a field lens is arranged below the vibrating mirror cavity, and a laser, a red light indicator and a zoom device are sequentially arranged in the shell along the direction close to the vibrating mirror cavity, and the invention is characterized in that: the red light emitted by the red light indicator is coaxial with the laser beam emitted by the laser; the laser beam emitted by the laser passes through the red light indicator, the zoom device and the monitor respectively, then enters the galvanometer cavity, and irradiates the surface of an object through the field lens.
Description
Technical Field
The invention relates to the technical field of laser 3D marking, in particular to a 3D welding machine.
Background
The laser marking machine utilizes the laser beam emitted by a laser, and can be used for marking target patterns on an object through the matching of a vibrating mirror and a field lens, the existing laser marking machine can be used for directly marking the target patterns on a plane object, the marking on a 3D object is realized through the up-down or front-back position movement of the marking machine, and aiming at the defect, the applicant relates to and applies for the technical scheme such as CN206106659U, and can realize the marking work of the 3D object without complicated movement by adding a zoom device on the path of the laser beam.
Although the above solution is very convenient for welding 3D objects, during use, the applicant has also found some drawbacks of the prior art to be solved:
1. the requirements for 3D welding are more strict than those of the common plane laser welding, so that the monitoring and control of defective products become the problem to be solved in the 3D welding
2. The use of the zoom directly solves the problem that the 3D welding does not need to move the laser in a complicated way, but how to prolong the service life of the zoom and the service life of the whole laser is also a problem to be solved.
Disclosure of Invention
The invention aims at the problems, and improves the internal structure of the shell, and adds a monitor, a cutter and a cooling system to solve the defects of the prior art, thereby prolonging the service life of the whole equipment while ensuring the yield.
The 3D welding machine of technical scheme 1, which comprises a housin, casing one end is equipped with shakes the mirror chamber, shake mirror chamber below and be equipped with the field lens, be equipped with laser instrument, red light indicator, zoom in proper order along the direction that is close to shake the mirror chamber in the casing, its characterized in that: the red light emitted by the red light indicator is coaxial with the laser beam emitted by the laser;
the vibrating mirror also comprises a connecting body, wherein the connecting body is arranged on the shell close to one end of the vibrating mirror cavity;
the device comprises a connecting body, a zoom device, a vibrating mirror cavity, a monitor, a laser beam and a laser beam, wherein the monitor stretches into the connecting body between the zoom device and the vibrating mirror cavity from the outside of the connecting body;
the laser device comprises a laser device, a laser device output end and a laser device output end, wherein the laser device output end is connected with the laser device output end through a laser device output end, and the laser device output end is connected with the laser device output end through a laser device output end;
the circuit board cooling device comprises a shell, a circuit board, a water cooling system and a control unit, wherein the circuit board is arranged in the shell;
and the laser beam emitted by the laser passes through the red light indicator, the zoom device and the monitor respectively, then enters the galvanometer cavity, and irradiates the surface of the object through the field lens.
Preferably, the connector comprises a guide cavity extending into the connector from one side of the connector, wherein an optical path cavity consistent with the direction of the laser beam is arranged in the guide cavity, the central axis of the optical path cavity is intersected with and vertical to the central axis of the guide cavity, the optical path cavity penetrates through the connector, a light gathering outlet is formed on the surface of the connector close to one side of the galvanometer cavity, a light receiving inlet is formed on the surface of the connector at the opposite side of the light gathering outlet, and the diameter of the light gathering outlet is smaller than that of the light receiving inlet;
and a circuit cavity which is axially parallel to the optical path cavity and penetrates through the connector is arranged on the connector above the optical path cavity.
Preferably, the guide body is hollow cylindrical in the interior, an inclined mounting surface is arranged at one end far away from the camera, an inclined inlet is arranged on the mounting surface, a flat outlet which forms a straight line passage with the inclined inlet is arranged on the guide body, a first beam combining lens with the inclination angle consistent with that of the mounting surface is arranged on the inclined inlet, and laser beams emitted by the laser enter the guide body from the inclined inlet and are emitted from the flat outlet.
Preferably, an included angle between the mounting surface and the shooting track of the camera is 45 degrees, the mounting surface is vertical to the horizontal plane in the vertical direction, and the shooting track of the camera is coaxial with the laser beam emitted by the laser after being refracted by the first beam combiner.
Preferably, the red light indicator comprises a support, a red light emitter is arranged on the support, a refraction frame is arranged on the support, a mirror hole is formed in the refraction frame, and a second beam combining mirror is arranged on the mirror hole.
Preferably, the included angle between the mirror surface of the second beam combiner and the laser beam emitted by the laser is 45 degrees.
Preferably, the surface of the second beam combining mirror is covered with a coating, and the coating can transmit 1064nm laser beam and reflect red light at 90 degrees.
Preferably, an air cooling system is arranged in the shell, the air cooling system is arranged on one side of the zoom device, and the air cooling system comprises a lifting frame and an air outlet body fixedly connected with the lifting frame.
Preferably, a main air duct is arranged in the air outlet body, a plurality of large air holes corresponding to the main air duct passages are formed in the upper end of the air outlet body, and a plurality of small air holes corresponding to the main air duct passages are formed in the surface of the air outlet body close to one side of the zoom device.
Preferably, the air outlet direction of the big air hole is vertical to the air outlet direction of the small air hole, the horizontal height of the small air hole corresponds to the upper surface of the zoom device, and the diameter of the big air hole is at least 10 times of the diameter of the small air hole.
Preferably, the two sides of the field lens are provided with light source components
Advantageous effects
1. The arrangement of the monitor effectively solves the problem of yield in the 3D welding technology, realizes the synchronization of the laser beam and the monitoring system by matching with the cutter, monitors the welding seam synchronously in the welding process, can stop and alarm the monitored defective products or the false welding in time, prevents the generation of defective products, and remarkably improves the yield.
2. Through set up forced air cooling endless structure in the casing inside can effectually increase the life of zoom ware, reduce the overheated problem that the part on the zoom ware removes and arouse, forced air cooling endless special structure can not influence the normal operating of zoom ware simultaneously to increase the inside holistic forced air circulation of casing, prolonged the holistic life of equipment.
Drawings
Fig. 1 is a perspective view showing a 3D welder of an embodiment.
Fig. 2 is a perspective view showing an internal structure of the 3D welder of the embodiment.
Fig. 3 is a partial structural perspective view showing the inside of the case of the embodiment.
Fig. 4 is a structural perspective view showing the monitor of the embodiment.
Fig. 5 is a perspective view showing an air outlet body according to an embodiment.
Fig. 6 is a perspective view showing a connector according to an embodiment.
Description of the reference numerals
1 shell, 2 galvanometer cavity, 3 field lens, 4 light source component, 11 laser, 12 red light indicator, 13 zoom, 14 monitor, 15 cutter, 16 water cooling system, 17 air cooling system, 51 guide cavity, 52 light path cavity, 53 light gathering outlet, 54 light receiving inlet, 55 circuit cavity, 121 support, 122 red light emitter, 123 refraction rack, 124 mirror hole, 141 camera, 142 guide body, 143 installation surface, 144 oblique inlet, 145 flat outlet, 146 first beam combining lens, 151 fixed block, 152 slice, 171 lifting frame, 172 air outlet body, 173 main air duct, 174 big air hole, 175 small air hole.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
the 3D welding machine as shown in the figures 1 to 6 comprises a shell 1, wherein a galvanometer cavity 2 is arranged at one end of the shell 1, a field lens 3 is arranged below the galvanometer cavity 2, a laser 11, a red light indicator 12 and a zoom 13 are sequentially arranged in the shell 1 along the direction close to the galvanometer cavity 2, and red light emitted by the red light indicator 12 is coaxial with a laser beam emitted by the laser 11;
the vibrating mirror further comprises a connecting body 5, wherein the connecting body 5 is arranged on the shell 1 close to one end of the vibrating mirror cavity 2;
as shown in fig. 3, the red light indicator 12 includes a support 121, a red light emitter 122, for example, a red light emitting diode, is disposed on the support 121, a refractive frame 123 is disposed on the support 121, a mirror hole 124 is disposed on the refractive frame 123, a second beam combining mirror is disposed on the mirror hole 124, an included angle between a mirror surface of the second beam combining mirror and a laser beam emitted by the laser 11 is 45 °, a surface of the second beam combining mirror covers a plating layer, and the plating layer can transmit a laser beam of 1064nm and reflect red light at an angle of 90 °.
The red light indicator 12 can remarkably increase the whole welding speed of the equipment, can accurately position the position to be welded by arranging red light and laser beams coaxially, can independently use the red light to find the position of the welding seam, saves the complicated step of directly using the laser beams to find the position, improves the welding efficiency and saves the welding time.
As shown in fig. 6, the connector 5 includes a guiding cavity 51 extending into the interior of the connector from one side of the connector, an optical path cavity 52 consistent with the direction of the laser beam is arranged in the guiding cavity 51, a central axis of the optical path cavity 52 intersects with and is perpendicular to a central axis of the guiding cavity 51, the optical path cavity 52 penetrates through the connector 5, a light collecting outlet 53 is formed on the surface of the connector 5 near one side of the galvanometer cavity 2, and a light collecting inlet 54 is formed on the surface of the connector 5 at the opposite side of the light collecting outlet 53; the diameter of the light collecting outlet 53 is smaller than that of the light collecting inlet 54
The connection body 5 is a preferred implementation manner of this embodiment as a connection structure, and the monitoring of the laser beam after passing through the zoom 13 needs a stable structure, the connection body 5 fixes the position of the monitor 14, and the laser beam is stably transited into the galvanometer cavity 2, so that a stable combination structure is achieved, and the real-time monitoring of the laser beam is realized.
A circuit cavity 55 which is axially parallel to the optical path cavity 52 and penetrates through the connector 5 is arranged on the connector 5 above the optical path cavity 52;
by providing the circuit cavity 55 in the connector 5, the operation of the monitoring device does not affect the normal operation of the original laser welding device, and the monitor 14 is combined with the housing 1 and the galvanometer cavity 2.
As shown in fig. 3, the monitor 14 extends into the connecting body 5 between the zoom 13 and the galvanometer cavity 2 from the outside of the connecting body 5, the monitor 14 includes a camera 141 disposed outside the connecting body 5 and a guide body 142 extending into the guide cavity 51, an imaging track of the camera 141 passes through the guide body 142 and is coaxial with a laser beam, the guide body 142 is in a hollow cylindrical shape, an inclined mounting surface 143 is disposed at one end far from the camera 141, an inclined inlet 144 is disposed on the mounting surface 143, a flat outlet 145 forming a straight line path with the inclined inlet 144 is disposed on the guide body 142, a first beam combining lens 146 having an inclination angle consistent with that of the mounting surface 143 is disposed on the inclined inlet 144, and the laser beam emitted by the laser 11 enters the guide body from the inclined inlet 144 and is emitted from the flat outlet 145;
preferably, the camera 141 is a CCD camera (Charge Coupled Device charge coupled device);
the guiding body 142 is arranged inside the shell 1, so that the shooting track is coaxial with the laser beam, high-efficiency real-time monitoring can be performed, the shooting position of the camera is overlapped with the welding seam, synchronous analysis can be performed by utilizing synchronous transmission shooting results through the analysis system, and effective stop correction can be performed on the occurrence of cold welding, missing welding, misplug welding and the like in time, the camera is arranged outside the shell, the whole size of equipment can be reduced by arranging the guiding body inside the shell, and different shooting equipment can be replaced conveniently.
The included angle between the mounting surface 143 and the image capturing track of the camera 141 is 45 °, the surface of the first beam combiner 146 is covered with a plating layer, the plating layer can transmit 1064nm laser beam and reflect visible light at an angle of 90 °, the mounting surface 143 is vertical to the horizontal plane in the vertical direction, and the image capturing track of the camera 141 is coaxial with the laser beam emitted by the laser 11 after being refracted by the first beam combiner 146.
In this embodiment, the mounting surface 143 is obliquely arranged, so that the imaging track and the laser beam can be coaxial through 45 ° arrangement by fully utilizing the characteristics of the first beam combining lens 146, synchronous monitoring can be realized, and the laser beam with the wavelength of 1064nm can also directly pass through.
As shown in fig. 3, the cutter 15 is disposed in a housing near the output end of the laser 11, the cutter 15 includes a fixed block 151 and a slice 152 rotatably connected to the fixed block, and the slice 152 releases or blocks the path of the laser beam emitted when rotating along the fixed block 151;
in this embodiment, the cutter 15 is connected with the monitor 14, when the monitor 14 gives an alarm, the cutter 15 acts to rapidly block the emission path of the laser beam, so that defective products are effectively avoided.
As shown in fig. 1, a water cooling system 16 is arranged on the shell 1 to assist in cooling the circuit board inside the shell 1; the service life of the whole equipment can be prolonged.
As shown in fig. 2 and fig. 3, the housing 1 is provided with an air cooling system 17, the air cooling system 17 is disposed at one side of the zoom apparatus 13, the air cooling system 17 includes a lifting frame 171 and an air outlet body 172 fixedly connected with the lifting frame 171, a main air duct 173 is disposed inside the air outlet body 172, a plurality of large air holes 174 passing through the main air duct 173 are disposed at the upper end of the air outlet body 172, a plurality of small air holes 175 passing through the main air duct 173 are disposed on the surface of the air outlet body 172 close to one side of the zoom apparatus 13, the air outlet direction of the large air holes 174 is perpendicular to the air outlet direction of the small air holes 175, the horizontal height of the small air holes 175 corresponds to the upper surface of the zoom apparatus 13, and the diameter of the large air holes 174 is 10 times the diameter of the small air holes 175.
In the air cooling system 17 of this embodiment, the large air hole 174 can generate circulating air in the casing 1 to reduce the temperature in the casing, and meanwhile, the small air hole 175 plays a significant role in cooling the zoom 13, especially plays an important role in cooling components moving back and forth on the zoom 13 and rails (the zoom is in the prior art and is not described in detail here), and the diameters of the large air hole 174 and the small air hole 175 are obtained through strict calculation and multiple tests, the overall temperature in the casing 1 can be effectively reduced while the consumption is minimum by matching the diameters of the large air hole 174 with the air outlet, and the temperature problem of moving components and rails on the zoom 13 can be effectively reduced while matching the diameters of the small air hole 175 with the air outlet, and the sliding of the moving components is not affected.
As shown in fig. 1, the two sides of the field lens 3 are provided with light source components 4, such as LED lamps, and the light source components 4 can reinforce the illumination, so as to facilitate the monitoring of the camera 141.
The laser beam emitted by the laser 11 respectively passes through the red light indicator 12, the zoom 13 and the monitor 14 and then enters the galvanometer cavity 2, and irradiates the surface of an object through the field lens 3, and the device further comprises an image recognition system, a feedback system, an alarm system and a controller, wherein the image recognition system, the feedback system, the alarm system and the controller are respectively connected with the red light indicator 12, the zoom 13, the monitor 14, the cutter 15, the water cooling system 16 and the air cooling system 17, and the components are mutually matched, so that the 3D welding device of the embodiment can complete periodic welding activities.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (9)
1. The utility model provides a 3D welding machine, includes the casing, casing one end is equipped with shakes the mirror chamber, it is equipped with the field lens to shake mirror chamber below, be equipped with laser instrument, ruddiness indicator, the ware that zooms in proper order along the direction that is close to shake the mirror chamber in the casing, its characterized in that: the red light emitted by the red light indicator is coaxial with the laser beam emitted by the laser;
the vibrating mirror also comprises a connecting body, wherein the connecting body is arranged on the shell close to one end of the vibrating mirror cavity;
the device comprises a connecting body, a zoom device, a vibrating mirror cavity, a monitor, a laser beam and a laser beam, wherein the monitor stretches into the connecting body between the zoom device and the vibrating mirror cavity from the outside of the connecting body;
the laser device comprises a laser device, a laser device output end and a laser device output end, wherein the laser device output end is connected with the laser device output end through a laser device output end, and the laser device output end is connected with the laser device output end through a laser device output end;
the circuit board cooling device comprises a shell, a circuit board, a water cooling system and a control unit, wherein the circuit board is arranged in the shell;
the laser beam emitted by the laser passes through the red light indicator, the zoom device and the monitor respectively, then enters the galvanometer cavity, and irradiates the surface of an object through the field lens;
the connector comprises a guide cavity extending into the connector from one side of the connector, wherein an optical path cavity consistent with the direction of the laser beam is arranged in the guide cavity, the central axis of the optical path cavity is intersected with and vertical to the central axis of the guide cavity, the optical path cavity penetrates through the connector, a light gathering outlet is formed on the surface of the connector close to one side of the galvanometer cavity, a light receiving inlet is formed on the surface of the connector at the opposite side of the light gathering outlet, and the diameter of the light gathering outlet is smaller than that of the light receiving inlet;
and a circuit cavity which is axially parallel to the optical path cavity and penetrates through the connector is arranged on the connector above the optical path cavity.
2. The 3D welder of claim 1, wherein: the guide body is hollow cylindrical in the inside, an inclined mounting surface is arranged at one end far away from the camera, an inclined inlet is arranged on the mounting surface, a flat outlet which forms a straight line passage with the inclined inlet is arranged on the guide body, a first beam combining lens with the inclination angle consistent with that of the mounting surface is arranged on the inclined inlet, and laser beams emitted by the laser enter the guide body from the inclined inlet and are emitted from the flat outlet.
3. The 3D welder of claim 2, wherein: the included angle between the mounting surface and the shooting track of the camera is 45 degrees, the mounting surface is vertical to the horizontal plane in the vertical direction, and the shooting track of the camera is coaxial with the laser beam emitted by the laser after being refracted by the first beam combiner.
4. The 3D welder of claim 1, wherein: the red light indicator comprises a support, a red light emitter is arranged on the support, a refraction frame is arranged on the support, a mirror hole is formed in the refraction frame, a second beam combining mirror is arranged on the mirror hole, and the included angle between the mirror surface of the second beam combining mirror and a laser beam emitted by the laser is 45 degrees.
5. The 3D welder of claim 4, wherein: the surface of the second beam combining lens is covered with a coating, and the coating can transmit 1064nm laser beam and reflect red light at an angle of 90 degrees.
6. The 3D welder of claim 1, wherein: an air cooling system is arranged in the shell and is arranged on one side of the zoom device, and the air cooling system comprises a lifting frame and an air outlet body fixedly connected with the lifting frame.
7. The 3D welder of claim 6, wherein: the air outlet body is internally provided with a main air duct, the upper end of the air outlet body is provided with a plurality of large air holes communicated with the main air duct, and the surface of the air outlet body close to one side of the zoom device is provided with a plurality of small air holes communicated with the main air duct.
8. The 3D welder of claim 7, wherein: the air outlet direction of the big air hole is vertical to the air outlet direction of the small air hole, the horizontal height of the small air hole corresponds to the upper surface of the zoom device, and the diameter of the big air hole is at least 10 times of the diameter of the small air hole.
9. The 3D welder of claim 1, wherein: light source components are arranged on two sides of the field lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919309.4A CN107552983B (en) | 2017-09-30 | 2017-09-30 | 3D welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919309.4A CN107552983B (en) | 2017-09-30 | 2017-09-30 | 3D welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107552983A CN107552983A (en) | 2018-01-09 |
| CN107552983B true CN107552983B (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919309.4A Active CN107552983B (en) | 2017-09-30 | 2017-09-30 | 3D welding machine |
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| Country | Link |
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| CN (1) | CN107552983B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161217B (en) * | 2018-02-11 | 2024-02-13 | 广州新可激光设备有限公司 | Yield type coaxial image laser marking machine and marking method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10064487A1 (en) * | 2000-12-22 | 2002-07-04 | Bosch Gmbh Robert | Soldering of component parts with which component parts to be jointed are heated using laser beam at temperature required for melting of solder to be applied and heating is maintained |
| DE10113518A1 (en) * | 2001-03-20 | 2002-10-02 | Precitec Kg | Safety glass fouling measurement for laser processing head involves comparing scattered radiation with reference value to produce error signal if reference value is exceeded |
| CN103909346A (en) * | 2013-12-26 | 2014-07-09 | 广东大族粤铭激光科技股份有限公司 | Large format laser marking device |
| CN107052587A (en) * | 2017-06-09 | 2017-08-18 | 广东顺德墨勒智能装备有限公司 | Laser marking machine |
| CN207272467U (en) * | 2017-09-30 | 2018-04-27 | 广州新可激光设备有限公司 | A kind of 3D bonding machines |
-
2017
- 2017-09-30 CN CN201710919309.4A patent/CN107552983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10064487A1 (en) * | 2000-12-22 | 2002-07-04 | Bosch Gmbh Robert | Soldering of component parts with which component parts to be jointed are heated using laser beam at temperature required for melting of solder to be applied and heating is maintained |
| DE10113518A1 (en) * | 2001-03-20 | 2002-10-02 | Precitec Kg | Safety glass fouling measurement for laser processing head involves comparing scattered radiation with reference value to produce error signal if reference value is exceeded |
| CN103909346A (en) * | 2013-12-26 | 2014-07-09 | 广东大族粤铭激光科技股份有限公司 | Large format laser marking device |
| CN107052587A (en) * | 2017-06-09 | 2017-08-18 | 广东顺德墨勒智能装备有限公司 | Laser marking machine |
| CN207272467U (en) * | 2017-09-30 | 2018-04-27 | 广州新可激光设备有限公司 | A kind of 3D bonding machines |
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| Publication number | Publication date |
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| CN107552983A (en) | 2018-01-09 |
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