CN212885731U - Visual detection mechanism and PCB laser marking machine - Google Patents
Visual detection mechanism and PCB laser marking machine Download PDFInfo
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- CN212885731U CN212885731U CN202021430932.7U CN202021430932U CN212885731U CN 212885731 U CN212885731 U CN 212885731U CN 202021430932 U CN202021430932 U CN 202021430932U CN 212885731 U CN212885731 U CN 212885731U
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Abstract
The utility model relates to a marking machine field, in particular to visual detection mechanism and PCB laser marking machine thereof. A visual inspection mechanism comprising: a laser, a mirror, and a camera. The reflector is arranged on one side of the laser emergent port. The PCB fixing device is arranged on one side of the laser and comprises a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are used for fixing the PCB, and a preset marking position is arranged between the first fixing plate and the second fixing plate. The camera is arranged above the reflector, and the position where the camera is preset for detecting the marking laser marking is a preset detection position. And the range of the preset marking position is within the range of the preset detection position. The utility model discloses in the position setting through laser instrument, speculum and camera, realized when the laser instrument beats the mark to the PCB board, the camera carries out synchronous detection to beating the mark position, has improved the efficiency of beating the mark, has practiced thrift the time cost.
Description
Technical Field
The utility model relates to a marking machine field, in particular to visual detection mechanism and PCB laser marking machine.
Background
At present, the laser marking technology is one of the largest application fields of laser processing. Laser marking is a marking method in which a workpiece is irradiated locally with high-energy-density laser to vaporize a surface layer material or to undergo a chemical reaction of color change, thereby leaving a permanent mark. The laser marking can print various characters, symbols, patterns and the like, and the size of the characters can be from millimeter to micron, which has special significance for the anti-counterfeiting of products.
The existing PCB laser marking machine can detect the marking position after marking, and has hysteresis.
Therefore, it is necessary to provide a visual inspection mechanism and a PCB laser marking machine to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a visual detection mechanism, through the position setting of speculum, camera and laser instrument, solved PCB laser marking device and can not be when beating mark to the PCB board, the camera carries out the problem that detects to the beat mark position of mark of PCB laser marking device.
A visual inspection mechanism comprising:
the laser is used for emitting marking laser to mark the PCB and comprises a laser emitting port;
the reflector is arranged on one side of the laser emergent port and used for conducting the marking laser;
the PCB fixing device is arranged on one side of the laser and comprises a first fixing plate and a second fixing plate for fixing the PCB, and a preset marking position is arranged between the first fixing plate and the second fixing plate;
the camera is arranged above the reflector and used for detecting the marking position of the marking laser, and the preset position for detecting the marking of the marking laser is a preset detection position;
and the range of the preset marking position is within the range of the preset detection position.
In the vision inspection mechanism of the present invention, the reflector is fixed to one side of the laser exit port by a triangular prism-shaped fixing frame;
the first side of the triangular prism-shaped fixing frame is fixed with the laser emergent port, the second side of the triangular prism-shaped fixing frame is fixed with the reflector, and the camera is arranged above the second side of the triangular prism-shaped fixing frame;
the first side of triangular prism type mount is relative with the second side, and is the acute angle setting, it passes through to beat the mark laser the speculum is extremely predetermine and is beaten the mark position, it is right the PCB board is beaten the mark, the camera sees through the speculum detects predetermine and detect the position.
Visual detection mechanism in, the below of prism type mount is provided with the testing light source, the testing light source passes through the connecting rod to be connected the third side below of prism type mount, just the one end of connecting rod sets up respectively the middle part position on four limits on prism type mount third side.
In the vision inspection mechanism of the present invention, the inspection light source includes the connecting portion connected to the connecting rod and a light-gathering portion for gathering the light of the inspection light source; the light-gathering part comprises a first light-gathering end and a second light-gathering end; the diameter of the first light gathering end is gradually increased and is equal to that of the second light gathering end.
In the vision inspection mechanism of the present invention, the camera and the laser are connected by a connecting frame; the connecting frame comprises a laser fixing part fixed with the laser and a reflection fixing part fixed with the reflector; the reflection fixing part and the laser fixing part are provided with load reduction grooves, and the connecting part of the reflection fixing part and the laser fixing part is also provided with load reduction grooves.
In the visual inspection mechanism of the present invention, a camera fixing protrusion and a camera fixing plate fixed to the camera are disposed above the reflection fixing portion;
the camera fixing bulge and the reflection fixing part are of an integral structure and are provided with a fixing long groove; the camera is fixed with the connecting frame through the camera fixing bulge and the camera fixing plate;
the camera is adjustably arranged on the camera fixing protrusion through the fixing long groove.
Among the vision inspection mechanism, the camera fixing plate includes: a first camera mounting plate and a second camera mounting plate;
the first camera fixing plate is of an L-shaped structure, a first edge is fixed with the camera fixing bulge, and a second edge is fixed with the first edge of the second camera fixing plate;
the second edge of the second camera fixing plate is fixed with the camera;
a first adjusting groove is formed in the first edge of the second camera fixing plate; the second camera fixing plate and the first fixing plate are adjustably fixed into a whole along the first adjusting groove.
In the vision inspection mechanism of the present invention, the second edge of the second camera fixing plate is provided with a second adjusting groove, and the camera is located on the second adjusting groove.
In the visual inspection mechanism of the present invention, the first side, the second side and the third side of the triangular prism-shaped holder are fixed by the triangular plastic frame.
A PCB laser marking machine comprises a visual detection mechanism.
The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses in the position setting through laser instrument, speculum and camera, realized when the laser instrument beats the mark to the PCB board, the camera carries out synchronous detection to beating the mark position, has improved the efficiency of beating the mark, has practiced thrift the time cost.
Wherein, through fixing the relevant position at first adjustment recess with first fixed plate, adjust the position of camera 13, also can fix the relevant position on the second adjustment recess with the camera, adjust the position of camera according to specific circumstances, improve and beat mark position accuracy, improved the quality of beating the mark.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.
Fig. 1 is a schematic view of a part of the structure of the vision inspection mechanism of the present invention.
Fig. 2 is a schematic structural diagram of the detection light source of the vision detection mechanism of the present invention.
Fig. 3 is a schematic structural diagram of the connecting frame of the vision inspection mechanism of the present invention.
Fig. 4 is a schematic structural view of the camera and the camera fixing plate of the vision inspection mechanism of the present invention.
Fig. 5 is a schematic structural diagram of the vision inspection mechanism of the present invention.
The laser device 11, the reflector 12, the camera 13, the connecting frame 14, the triangular prism-shaped fixing frame 15, the detection light source 16, the connecting rod 17, the laser exit 111, the connecting portion 161, the light-gathering portion 162, the first light-gathering end 162a, the second light-gathering end 162b, the laser fixing portion 141, the reflection fixing portion 142, the load reduction groove 14a, the camera fixing protrusion 143, the camera fixing plate 131, the fixing long groove 143a, the first camera fixing plate 131a, the second camera fixing plate 131b, the first adjustment groove 131b1, the second adjustment groove 131b2, the first fixing plate 181, the second fixing plate 182, and the preset marking position 18 a.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
The present invention provides a preferred embodiment of a visual inspection mechanism capable of solving the above technical problems.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.
The utility model provides a visual detection mechanism's preferred embodiment does:
referring to fig. 1 and 5, a visual inspection mechanism includes: a laser 11, a mirror 12, a camera 13 and a fixture. The laser 11 is used for emitting marking laser to mark the PCB, and includes a laser emitting port 111. The reflecting mirror 12 is provided on the laser exit port 111 side for conducting the marking laser. The PCB fixing device is arranged on one side of the laser and comprises a first fixing plate 181 and a second fixing plate 182, wherein the PCB is fixed, and a preset marking position 18a is arranged between the first fixing plate 181 and the second fixing plate 182. The camera 13 is arranged above the reflector 12 and used for detecting the marking position of the marking laser, and the preset position of the camera 13 for detecting the marking position of the marking laser is a preset detection position. Wherein, the range of the preset marking position 18a is within the range of the preset detection position. In the embodiment, the laser, the reflector and the camera are arranged, so that the laser marks the PCB, and the camera synchronously detects the marked position, thereby improving the marking efficiency and saving the time cost.
In the present embodiment, the reflecting mirror 12 is fixed to the laser exit port 111 side by a triangular prism-shaped fixing frame 15. A first side of the triangular prism type holder 15 is fixed to the laser exit port 111, a second side is fixed to the reflector 12, and the camera 13 is disposed above the second side of the triangular prism type holder 15. The first side of triangle prism type mount 15 is relative with the second side, and is the acute angle setting, marks the mark laser and passes through the speculum reflection to predetermineeing and mark the position, marks the PCB board, and the camera sees through the speculum and detects the mark laser marking's of beating position. Through the arrangement of the relative positions of the reflector 12, the laser exit port 111 and the camera 13, marking laser marking is emitted by the laser 11, and meanwhile, the detection of the marking position by the camera 13 through the reflector 12 is also met.
Referring to fig. 1 and 3, in order to further improve the accuracy of the camera 13 in detecting the marking position, a detection light source 16 is disposed below the triangular prism-shaped fixing frame 15. The detection light source 16 is connected below the third side of the triangular prism type fixing frame 15 through a connecting rod 17, and one end of the connecting rod 17 is respectively arranged in the middle of four sides of the third side of the triangular prism type fixing frame 15. Further, in order to improve the light gathering performance of the detection light source 16 and better improve the accuracy of the camera 13 in detecting the marking position, the detection light source 16 includes a connecting portion 161 connected to the connecting rod 17 and a light gathering portion 162 for gathering the light of the detection light source 16, and the light gathering portion includes a first light gathering end 162a and a second light gathering end 162 b. The first light gathering end 162a has a gradually larger diameter and is equal to the second light gathering end 162b in diameter.
Referring to fig. 3, in the present embodiment, in order to reduce the weight of the connecting frame and reduce the material usage, the connecting frame 14 includes a laser fixing portion 141 fixed to the laser 11 and a reflection fixing portion 142 fixed to the reflector 12; the reflection fixing portion 142 and the laser fixing portion 141 are provided with a relief groove 14a, and a connection portion of the reflection fixing portion 142 and the laser fixing portion 141 is also provided with the relief groove 14 a.
Referring to fig. 1, 3 and 4, a camera fixing protrusion 143 and a camera fixing plate 131 fixed to the camera 13 are disposed above the reflection fixing part 142. The camera fixing protrusion 143 and the reflection fixing portion 142 are integrally formed, and are provided with a fixing elongated slot 143a, and the camera 13 is fixed to the connecting frame 14 through the camera fixing protrusion 143 and the camera fixing plate 131. The camera 13 is adjustably mounted on the camera fixing protrusion 143 through the fixing long groove 143 a. In this embodiment, can fix the position on camera fixed protrusion 143 to first camera fixed plate 131a as required and adjust, and more accurate proofreading is predetermine and is detected the position to more convenient more accurate detection is beaten the position of mark, makes the more accurate mark of beating mark laser, and then reaches the effect that improves and beat the mark precision.
The camera fixing plate 131 includes: a first camera fixing plate 131a and a second camera fixing plate 131 b. The first camera fixing plate 131a has an L-shaped structure, and a first side thereof is fixed to the camera fixing protrusion 143 and a second side thereof is fixed to the first side of the second camera fixing plate 131 b. The second camera fixing plate 131b is fixed to the camera 13 at a second side. The first side of the second camera fixing plate 131b is provided with a first adjustment groove 131b 1. The second camera fixing plate 131b and the first fixing plate 131a are adjustably fixed as a unit along the first adjustment groove 131b 1. A second side of the second camera fixing plate 131b is provided with a second adjustment groove 131b2, and the camera 13 is adjustably provided on the second camera fixing plate 131b along the second adjustment groove 131b 2. Through fixing first fixed plate 131a at the relevant position of first adjustment recess 131b1, adjust the position of camera 13, and simultaneously, also can fix the relevant position on second adjustment recess 131b2 with camera 13, adjust the position of camera according to specific circumstances, more accurate proofreading is predetermine and is detected the position, thereby more convenient more accurate detection is beaten the position of mark, make the more accurate mark of beating of mark laser, and then improve and beat mark position accuracy, the quality of beating the mark has been improved.
Further, in this embodiment, the first side, the second side and the third side of the triangular prism-shaped fixing frame 15 are fixed by the triangular plastic skeleton, so that the quality of the triangular prism-shaped fixing frame 15 is reduced, and the convenience and the stability of the triangular prism-shaped fixing frame 15 fixed on the connecting frame 14 are improved.
In this embodiment, a PCB laser marking machine including a visual inspection mechanism is also provided.
The following specifically describes the specific working principle of the visual inspection mechanism in this embodiment:
firstly, the laser 11 is started to emit marking laser, and the marking laser is reflected by the reflector to reach a marking position on the PCB so as to mark the PCB. Meanwhile, the camera 13 detects the marking position on the PCB marked by the marking laser through the reflector, and if the marking position on the PCB marked by the marking laser is error-free, the marking is continued. If there is an error, an adjustment is made. According to the information that detects, the position on camera fixed protrusion 143 is fixed to the first camera fixed plate 131a of corresponding adjustment, first fixed plate 131a is fixed at the relevant position of first adjustment recess 131b1, the relevant position on second adjustment recess 131b2 is fixed to camera 13, more accurate proofreading is predetermine and is detected the position, thereby more convenient more accurate detection marks the position, make the more accurate mark of marking laser, and then improve and mark the position accuracy, the quality of marking has been improved.
Thus, the specific working principle of the visual detection mechanism is completed.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A visual inspection mechanism, comprising:
the laser is used for emitting marking laser to mark the PCB and comprises a laser emitting port;
the reflector is arranged on one side of the laser emergent port and used for conducting the marking laser;
the PCB fixing device is arranged on one side of the laser and comprises a first fixing plate and a second fixing plate for fixing the PCB, and a preset marking position is arranged between the first fixing plate and the second fixing plate;
the camera is arranged above the reflector and used for detecting the marking position of the marking laser, and the preset position for detecting the marking of the marking laser is a preset detection position;
and the range of the preset marking position is within the range of the preset detection position.
2. The visual inspection mechanism of claim 1, wherein the reflector is fixed to the laser exit port side by a triangular prism-shaped mount;
the first side of the triangular prism-shaped fixing frame is fixed with the laser emergent port, the second side of the triangular prism-shaped fixing frame is fixed with the reflector, and the camera is arranged above the second side of the triangular prism-shaped fixing frame;
the first side and the second side of the triangular prism-shaped fixing frame are opposite and arranged in an acute angle, and the marking laser is reflected to the preset marking position through the reflector to mark the PCB; the camera detects the preset detection position through the reflector.
3. The visual inspection mechanism of claim 2, wherein a light source is disposed under the triangular prism type holder, the light source is connected under the third side of the triangular prism type holder through a connecting rod, and one end of the connecting rod is disposed at a middle position of four sides of the third side of the triangular prism type holder.
4. The visual inspection mechanism of claim 3, wherein the inspection light source includes a connection portion connected to the connection rod and a light-gathering portion for gathering light of the inspection light source; the light-gathering part comprises a first light-gathering end and a second light-gathering end; the diameter of the first light gathering end is gradually increased and is equal to that of the second light gathering end.
5. The visual inspection mechanism of claim 1, wherein a camera and the laser are connected with a connection bracket; the connecting frame comprises a laser fixing part fixed with the laser and a reflection fixing part fixed with the reflector; the reflection fixing part and the laser fixing part are provided with load reduction grooves, and the connecting part of the reflection fixing part and the laser fixing part is also provided with load reduction grooves.
6. The visual inspection mechanism of claim 5, wherein a camera fixing protrusion and a camera fixing plate fixed with the camera are disposed above the reflection fixing portion;
the camera fixing bulge and the reflection fixing part are of an integral structure and are provided with a fixing long groove; the camera is fixed with the connecting frame through the camera fixing bulge and the camera fixing plate;
the camera is adjustably arranged on the camera fixing protrusion through the fixing long groove.
7. The visual inspection mechanism of claim 6, wherein the camera mounting plate comprises: a first camera mounting plate and a second camera mounting plate;
the first camera fixing plate is of an L-shaped structure, a first edge is fixed with the camera fixing bulge, and a second edge is fixed with the first edge of the second camera fixing plate;
the second edge of the second camera fixing plate is fixed with the camera;
a first adjusting groove is formed in the first edge of the second camera fixing plate; the second camera fixing plate and the first fixing plate are adjustably fixed into a whole along the first adjusting groove.
8. The visual inspection mechanism of claim 7, wherein a second edge of the second camera mounting plate is provided with a second adjustment recess, the camera being adjustably positioned on the second camera mounting plate along the second adjustment recess.
9. The visual inspection mechanism of claim 3, wherein the first, second, and third sides of the triangular prism-shaped mount are secured by a triangular plastic skeleton.
10. A PCB laser marking machine comprising the visual inspection mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430932.7U CN212885731U (en) | 2020-07-20 | 2020-07-20 | Visual detection mechanism and PCB laser marking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430932.7U CN212885731U (en) | 2020-07-20 | 2020-07-20 | Visual detection mechanism and PCB laser marking machine |
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| CN212885731U true CN212885731U (en) | 2021-04-06 |
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| CN202021430932.7U Active CN212885731U (en) | 2020-07-20 | 2020-07-20 | Visual detection mechanism and PCB laser marking machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769855A (en) * | 2020-07-20 | 2022-07-22 | 深圳市中科激光科技有限公司 | PCB board fixing device and corresponding PCB laser marking machine |
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- 2020-07-20 CN CN202021430932.7U patent/CN212885731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769855A (en) * | 2020-07-20 | 2022-07-22 | 深圳市中科激光科技有限公司 | PCB board fixing device and corresponding PCB laser marking machine |
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