CN217305527U - Laser radar transmission module adjusting device and laser radar transmission module - Google Patents
Laser radar transmission module adjusting device and laser radar transmission module Download PDFInfo
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- CN217305527U CN217305527U CN202220401269.0U CN202220401269U CN217305527U CN 217305527 U CN217305527 U CN 217305527U CN 202220401269 U CN202220401269 U CN 202220401269U CN 217305527 U CN217305527 U CN 217305527U
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Abstract
The utility model provides a laser radar transmission module timing device and laser radar transmission module belongs to laser radar technical field, including supporting seat, connecting seat and threaded fastener, the supporting seat is equipped with the holding tank, is equipped with annular guide face on the groove lateral wall of holding tank, is equipped with the screw on the supporting seat, locates the installation clearance between the up end of connecting seat and supporting seat; the connecting seat is provided with a connecting part, a matching surface is arranged on the connecting part, and the connecting part has a degree of freedom rotating around the center of the annular guide surface; the connecting seat is provided with a connecting hole, and the threaded fastener penetrates through the connecting hole to be in threaded connection with the screw hole; the threaded fastener is used for fixing the connecting seat on the supporting seat. The utility model provides a laser radar transmission module timing device has improved the laser radar transmission module installation degree of accuracy, and then makes the emergent light path and the coincidence of theoretical design light path of light source.
Description
Technical Field
The utility model belongs to the technical field of laser radar, more specifically say, relate to a laser radar transmission module timing device and laser radar transmission module.
Background
The laser radar is a radar system for detecting characteristic quantities such as target position, speed and the like by emitting laser beams, and the working principle of the radar system is that laser beams are emitted through an emitting module (LD laser emitting component), reflected to a target object through a rotating mirror, and then received signals reflected back from the target object are subjected to data processing, so that relevant information of the target object can be obtained. The space position of the emergent light path of laser radar transmission module for the rotating mirror directly influences laser radar's level and the position of perpendicular field of vision region, that is to say the space region's that laser radar can see the position. The actual assembly emission module can not guarantee the consistency with theoretical design because of the processing error and the assembly error of the parts, so that the installation accuracy of the laser radar emission module is low, and the deviation exists between the emergent light path of the light source and the theoretical design light path.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laser radar transmission module timing device and laser radar transmission module to there is the technical problem of deviation in the light source outgoing light path of the laser radar transmission module that exists and theoretical design light path among the solution prior art.
In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a laser radar transmission module timing device includes:
the upper end of the supporting seat is provided with an accommodating groove; the side wall of the accommodating groove is provided with an annular guide surface; the upper end surface of the supporting seat is also provided with a screw hole positioned on one side of the accommodating groove;
the connecting seat is arranged on the supporting seat, and an installation gap is formed between the lower end face of the connecting seat and the upper end face of the supporting seat; the lower end of the connecting seat is provided with a connecting part which is arranged in the accommodating groove, the connecting part is provided with a matching surface which is movably connected with the annular guide surface, and the connecting part has a degree of freedom which rotates around the center of the annular guide surface; the connecting seat is provided with a connecting hole corresponding to the screw hole; the connecting seat is used for being fixedly connected with the transmitting circuit board; driving the matching surface on the connecting seat to swing up and down in the annular guide surface of the supporting seat, and adjusting the pitching degree of the transmitting circuit board;
the threaded fastener penetrates through the connecting hole and is in threaded connection with the screw hole; the threaded fastener is used for fixing the connecting seat on the supporting seat.
In a possible implementation manner, the annular guiding surface is a concave arc-shaped surface, and the matching surface is a convex arc-shaped surface connected with the concave arc-shaped surface through a spherical surface.
In a possible implementation, the annular guiding surface and the mating surface are both inclined planes, and the inclination angles of the annular guiding surfaces are different; the mating surface abuts against an edge of the annular guide surface.
In one possible implementation manner, the screw holes and the connecting holes are multiple and correspond to each other one by one; the screw centers on the holding tank equipartition sets up.
In a possible implementation manner, the number of the screw holes is four, and the screw holes are arranged on the supporting seat in a rectangular shape.
In one possible implementation, the threaded fastener is a screw.
In a possible implementation manner, a through hole is formed in the bottom surface of the accommodating groove, the connecting part penetrates through the through hole, and a through hole is formed in the connecting seat; and the emergent light path of the transmitting circuit board passes through the through hole.
In a possible implementation manner, an annular flange is arranged on the inner wall of the through hole and is used for being matched with a limiting bulge on the transmitting circuit board; the light source of the transmitting circuit board is arranged on the limiting bulge.
In a possible implementation, the lower end of the connecting part is provided with a lens assembly.
The utility model provides a laser radar transmission module timing device's beneficial effect lies in: compared with the prior art, the laser radar transmitting module adjusting device of the utility model is used for fixedly mounting the transmitting circuit board on the connecting seat, then mounting the connecting seat and the transmitting circuit board on the supporting seat together, and the connecting seat enters the containing groove, the annular guide surface on the connecting seat is matched and mounted with the matching surface in the containing groove, so that the connecting seat is provided with a free end rotating around the central point of the annular guide surface; finally, a threaded fastener penetrates through the connecting hole and is in threaded connection with the screw hole, so that the connecting seat is fixedly connected with the supporting seat; starting a light source on the transmitting circuit board, observing the deviation direction of an emergent light path of the transmitting circuit board and a theoretically designed light path, loosening a threaded fastener, pressing one corner of the connecting seat corresponding to the deviation direction and making a small movement downwards to enable the emergent light path to be overlapped with the theoretically designed light path, and then enabling the threaded fastener to penetrate through the connecting hole to be in threaded connection with the screw hole; through this kind of mode improved laser radar emission module installation accuracy, and then made the emergent light path of light source and theoretical design light path coincidence.
Another object of the present invention is to provide a lidar transmission module, including an arbitrary one of the above-mentioned lidar transmission module timing devices.
The utility model provides a laser radar transmission module has adopted laser radar transmission module timing device, has improved the installation accuracy of laser radar transmission module, and then makes the emergent light path and the coincidence of theoretical design light path of light source, makes the accurate work of laser radar transmission module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a first front view of a calibration apparatus for a laser radar transmitting module according to an embodiment of the present invention;
fig. 2 is a first top view of a calibration apparatus for a laser radar transmitting module according to an embodiment of the present invention;
fig. 3 is a first cross-sectional view of a tuning apparatus for a laser radar transmitting module according to an embodiment of the present invention;
fig. 4 is a second front view of the adjustment device for a laser radar transmitting module according to an embodiment of the present invention;
fig. 5 is a second top view of the adjustment device for a laser radar transmitting module according to an embodiment of the present invention;
fig. 6 is a second cross-sectional view of the adjustment and calibration apparatus for a laser radar transmitting module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an embodiment of the utility model provides a lidar transmission module adjusting device.
Wherein, in the figures, the respective reference numerals:
1. a supporting seat; 11. accommodating grooves; 12. an inner concave arc-shaped surface; 13. an inclined plane; 14. a through hole; 2. a connecting seat; 21. a mounting gap; 22. a connecting portion; 23. a convex arc surface; 24. a through hole; 26. a lens assembly; 27. a lens; 3. a threaded fastener; 4. a transmission line board.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 6, the adjustment device for a laser radar transmitting module according to the present invention will now be described. A laser radar transmitting module adjusting device comprises a supporting seat 1, a connecting seat 2 and a threaded fastener 3, wherein an accommodating groove 11 is formed in the upper end of the supporting seat 1; the side wall of the accommodating groove 11 is provided with an annular guide surface; the upper end surface of the supporting seat 1 is also provided with a screw hole positioned at one side of the accommodating groove 11; the connecting seat 2 is arranged on the supporting seat 1, and an installation gap 21 is arranged between the lower end face and the upper end face of the supporting seat 1; the lower end of the connecting seat 2 is provided with a connecting part 22 which is arranged in the accommodating groove 11, the connecting part 22 is provided with a matching surface which is movably connected with the annular guide surface, and the connecting part 22 has the freedom degree of rotating around the center of the annular guide surface; the connecting seat 2 is provided with a connecting hole corresponding to the screw hole; the connecting seat 2 is used for being fixedly connected with the transmitting circuit board 4; driving a matching surface on the connecting seat 2 to swing up and down in an annular guide surface of the supporting seat 1, and adjusting the pitching degree of the transmitting circuit board 4; the threaded fastener 3 penetrates through the connecting hole and is in threaded connection with the screw hole; the threaded fastener 3 is used for fixing the connecting seat 2 on the supporting seat 1.
Compared with the prior art, the laser radar transmitting module adjusting device provided by the utility model has the advantages that when in use, the transmitting circuit board 4 is fixedly arranged on the connecting seat 2, then the connecting seat 2 and the transmitting circuit board 4 are arranged on the supporting seat 1 together, the connecting seat 2 enters the accommodating groove 11, the annular guide surface on the connecting seat 2 is matched and arranged with the matching surface in the accommodating groove 11, and the connecting seat 2 is provided with a free end rotating around the central point of the annular guide surface; finally, a threaded fastener 3 penetrates through the connecting hole and is in threaded connection with the screw hole, so that the connecting seat 2 is fixedly connected with the supporting seat 1; starting a light source on the emission circuit board 4, observing the deviation direction of an emergent light path of the light source and a theoretically designed light path, loosening the threaded fastener 3, pressing one corner of the connecting seat 2 corresponding to the deviation direction and making a small downward movement to enable the emergent light path to be overlapped with the theoretically designed light path, and then enabling the threaded fastener 3 to penetrate through the connecting hole to be in threaded connection with the screw hole; through this kind of mode improved laser radar emission module installation accuracy, and then made the emergent light path of light source and theoretical design light path coincidence.
Because the main reason of the problem that this application solved lies in that spare part machining error or assembly error arouse in the laser radar transmission module, therefore the error of the outgoing light path of light source and theoretical design light path is very little, but is also enough to cause the puzzlement to laser radar's use. Set up the aperture of connecting hole and be greater than the aperture of screw and threaded fastener 3's external diameter, take place the micro-back of rotating for supporting seat 1 at connecting seat 2 and transmission circuit board 4, threaded fastener 3 still can pass the connecting hole and with screw threaded connection to adjust the degree of screwing of threaded fastener 3 and screw, constantly adjust threaded fastener 3 repeatedly, finally be the facula of emission module outgoing light path and the coincidence of the design position of theoretical light path facula. Theoretical light path light spots are arranged for realizing the rapid and accurate alignment of emergent light paths of the transmitting module.
Referring to fig. 7, L1 is the radius of the connector holder 2, L2 is the interval of the mounting gap 21, and the adjustment angle θ is designed according to the overall performance and the precision of part processing and assembly, where sin θ is L2/L1.
Please refer to fig. 1 to 3, as the utility model provides a laser radar transmission module tuning device's a specific implementation, the ring guide face is interior concave arc 12, the fitting surface is the evagination arc 23 of being connected with interior concave arc 12 sphere, namely, connecting seat 2 can rotate in holding tank 11 of supporting seat 1, and the sphere around interior concave arc 12 or evagination arc 23 takes place to rotate, and then realizes changing the mounted position of transmission circuit board 4 to reach the mesh of adjusting the outgoing light path of its light source. The connecting mode ensures that the friction force between the connecting seat 2 and the supporting seat 1 is smaller, the movement is more stable, and the noise is lower.
Referring to fig. 4 to 6, as a specific embodiment of the tuning apparatus for a laser radar transmitting module according to the present invention, the annular guiding surface and the matching surface are both inclined planes 13, and the inclined angles of the annular guiding surface are different; the matching surface is abutted with the edge of the annular guide surface; in the holding tank 11 of supporting seat 1 is installed into to connecting seat 2, two inclined plane 13 butt joint, but because the inclination of two inclined plane 13 is different, therefore the fitting surface is with the upper edge or the lower edge looks butt of annular guide face, promptly, the face limit meets, therefore connecting seat 2 takes place when rotating in holding tank 11, relative motion takes place for the fitting surface and the edge of annular guide face, and then the realization makes the mounted position of emission circuit board 4 change along with the motion of connecting seat 2 to reach the mesh of adjusting the outgoing light path of its light source.
Referring to fig. 1 to 7, as a specific embodiment of the tuning apparatus for a laser radar transmitting module according to the present invention, a plurality of screw holes and connecting holes are provided, and correspond to each other; the screw sets up around 11 equipartitions of holding tank, start transmission circuit board 4 and make the light source send laser, and the actual outgoing light path of laser and theoretical design light path relative ratio, according to the skew angle of actual light path, loosen threaded fastener 3 earlier, and control the connecting seat 2 and move in holding tank 11 in supporting seat 1, make connecting seat 2 around the central luffing motion of annular guide face, and then change transmission circuit board 4's levelness, make the actual outgoing light path of laser and the coincidence of theoretical design light path, then control threaded fastener 3 rotation and locking fixing connecting seat 2 on supporting seat 1 again. Set up a plurality of screws and a plurality of connecting hole to use a plurality of threaded connection spare and each screw one-to-one, no matter what direction the actual emergent light path of laser incline for theoretical design light path orientation, all can adjust through threaded fastener 3, realize the multidimension degree timing of laser radar transmission module.
Referring to fig. 2 and 5, as a specific embodiment of the adjustment apparatus for a laser radar transmitting module according to the present invention, four screw holes are provided, and are rectangular on the supporting base 1; four screws set up respectively in the four corners department of supporting seat 1, can realize that connecting seat 2 multidimension degree on supporting seat 1 is adjusted, also enables the connection between connecting seat 2 and the supporting seat 1 more reliably, stable.
Referring to fig. 1 to 6, as a specific embodiment of the tuning device for a laser radar transmitting module according to the present invention, the threaded fastener 3 is a screw, and the screw is used as the threaded fastener 3, so that the worker can control the connecting seat 2 to rotate on the supporting seat 1 to adjust the precise positioning of the emergent light path of the transmitting circuit board 4, and the worker can use a screwdriver or the like to quickly and effectively control the screwing degree of the screw in the screw hole; meanwhile, the cost of the screw is low, and the screw is convenient to purchase; the staff can labour saving and time saving control.
Referring to fig. 1 to 6, as a specific embodiment of the adjustment apparatus for a laser radar transmitting module according to the present invention, a through hole 14 is formed on the bottom surface of the accommodating groove 11, a connecting portion 22 passes through the through hole 14, and a through hole 24 is formed on the connecting seat 2; the emergent light path of the emitting circuit board 4 passes through the through hole 24, the through hole 14 is arranged on the bottom surface of the accommodating groove 11, the through hole 24 is arranged in the connecting part 22, and after the emitting circuit board 4 is arranged on the connecting seat 2, the light source of the emitting circuit board 4 is arranged towards the through hole 24, so that the emergent light path passes through the through hole 24 and laser can be conveniently emitted. Meanwhile, the connecting portion 22 passes through the through hole 14 and is located below the supporting seat 1, so that the connecting portion 22 is long, and therefore light emitted by the light source is stably emitted outwards and is not easily interfered by the outside.
Referring to fig. 3 and 6, as a specific embodiment of the adjustment apparatus for a laser radar transmission module according to the present invention, the lower end of the connecting portion 22 is provided with the lens assembly 26, and the lens assembly 26 is disposed below the supporting seat 1, so that the light source of the transmission circuit board 4 passes through the through hole 24 and then passes through the lens 27 in the lens assembly 26, thereby increasing the angle of field of the light source and improving the accuracy of the laser radar monitoring. The lens assembly 26 comprises a sleeve and a lens 27 mounted in the sleeve, wherein the sleeve is provided with an internal thread section for being in threaded connection with the outer side surface of the lower end of the connecting part 22.
In the figure, the embodiment of the utility model provides a still provide a laser radar transmission module, laser radar transmission module includes an arbitrary foretell laser radar transmission module timing device.
The utility model provides a laser radar transmission module has adopted foretell laser radar transmission module timing device, has improved the installation accuracy of laser radar transmission module, and then makes the outgoing light path and the coincidence of theoretical design light path of light source, makes the accurate work of laser radar transmission module.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a laser radar transmission module timing device which characterized in that includes:
the upper end of the supporting seat is provided with an accommodating groove; the side wall of the accommodating groove is provided with an annular guide surface; the upper end face of the supporting seat is also provided with a screw hole positioned on one side of the accommodating groove;
the connecting seat is arranged on the supporting seat, and an installation gap is formed between the lower end face of the connecting seat and the upper end face of the supporting seat; the lower end of the connecting seat is provided with a connecting part which is arranged in the accommodating groove, the connecting part is provided with a matching surface which is movably connected with the annular guide surface, and the connecting part has a degree of freedom which rotates around the center of the annular guide surface; the connecting seat is provided with a connecting hole corresponding to the screw hole; the connecting seat is used for being fixedly connected with the transmitting circuit board; driving the matching surface on the connecting seat to swing up and down in the annular guide surface of the supporting seat, and adjusting the pitching degree of the transmitting circuit board;
the threaded fastener penetrates through the connecting hole and is in threaded connection with the screw hole; the threaded fastener is used for fixing the connecting seat on the supporting seat.
2. The lidar transmit module tuning device of claim 1 wherein the annular guide surface is an inner concave arcuate surface and the mating surface is an outer convex arcuate surface spherically connected to the inner concave arcuate surface.
3. The lidar transmit module tuning device of claim 1, wherein the annular guide surface and the mating surface are both inclined planes, and the inclination angles of the annular guide surface are different; the mating surface abuts against an edge of the annular guide surface.
4. The device for adjusting the laser radar transmitting module of claim 1, wherein the screw holes and the connecting holes are provided in a plurality and correspond to each other one by one; the screw hole surrounds the holding tank equipartition sets up.
5. The device for adjusting the laser radar transmitting module of claim 4, wherein the number of the screw holes is four, and the screw holes are rectangular and arranged on the supporting base.
6. The lidar transmitter tuning assembly of claim 1 wherein the threaded fastener is a screw.
7. The device for adjusting and calibrating a laser radar transmission module according to claim 1, wherein a through hole is formed on a bottom surface of the receiving groove, the connecting part passes through the through hole, and a through hole is formed on the connecting seat; and the emergent light path of the transmitting circuit board passes through the through hole.
8. The lidar transmission module adjustment device of claim 7, wherein a lens assembly is disposed at a lower end of the connecting portion.
9. A lidar transmission module including the lidar transmission module tuning apparatus of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401269.0U CN217305527U (en) | 2022-02-25 | 2022-02-25 | Laser radar transmission module adjusting device and laser radar transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401269.0U CN217305527U (en) | 2022-02-25 | 2022-02-25 | Laser radar transmission module adjusting device and laser radar transmission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217305527U true CN217305527U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220401269.0U Active CN217305527U (en) | 2022-02-25 | 2022-02-25 | Laser radar transmission module adjusting device and laser radar transmission module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217305527U (en) |
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2022
- 2022-02-25 CN CN202220401269.0U patent/CN217305527U/en active Active
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