CN212343896U - Miniature focusing mechanism with double cameras - Google Patents
Miniature focusing mechanism with double cameras Download PDFInfo
- Publication number
- CN212343896U CN212343896U CN202021400950.0U CN202021400950U CN212343896U CN 212343896 U CN212343896 U CN 212343896U CN 202021400950 U CN202021400950 U CN 202021400950U CN 212343896 U CN212343896 U CN 212343896U
- Authority
- CN
- China
- Prior art keywords
- box body
- window
- camera
- linear driving
- driving mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a double-camera micro focusing mechanism, which comprises a box body, a slide rail component and a lens component; the box body is hollow, a first through window is arranged at one end of the box body, a second through window is arranged at the other end of the box body, one end, provided with the second window, of the box body is opposite to the surface of a to-be-detected printed product, the sliding rail assembly and the lens assembly are arranged at one end, provided with the first window, of the box body, and the sliding rail assembly is fixedly connected with the outer surface of the first window of the box body; the interior of the box body, the first window and the second window jointly form a viewing light path of the lens assembly on the surface of the to-be-detected printed product, and light emitted by the surface of the to-be-detected printed product enters the lens assembly through the viewing light path; the lens component is connected with the sliding rail component in a sliding mode, so that the distance between the lens component and the surface of the printed product to be detected is adjusted.
Description
Technical Field
The utility model relates to a machine vision check out test set technical field especially relates to a miniature focusing mechanism of two cameras.
Background
In a continuous material high-speed production line, a quality inspection system based on a line scanning industrial camera is widely used, and a printing quality monitoring system is generally referred to as a "still picture" system. The static picture system uses high-speed digital image processing technology and method to convert the surface of the printed matter which can not be observed by human eyes during high-speed printing into a static picture which can be easily accepted by human eyes and is displayed on a high-resolution large-screen liquid crystal display, so that detection personnel can conveniently observe the quality of the printed matter, fine printing defects can be found by naked eyes, the printing quality and the finished product rate are greatly improved, and the material waste is reduced.
The static picture system mainly comprises a photographing camera, a camera walking mechanism, a power supply, a display, a human-computer interface keyboard or a mouse and the like. The camera is a key component of the system, and the camera determines key performance indexes of the system, such as image acquisition and display resolution, color reduction degree, distortion removal, interference resistance, working reliability, stability and the like. In order to adapt to different application occasions, a camera of a still picture system needs to flexibly adjust a focal length, and the adjusted focal length can be kept.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a compact reasonable, the miniature focusing mechanism of two cameras that the imaging quality is reliable.
The technical scheme of the utility model is realized like this: the utility model provides a two camera miniature focusing mechanism, including box (1), slide rail set spare (2) and lens subassembly (3), box (1) inside is hollow, the one end of box (1) is provided with first window (11) that link up, the other end of box is provided with second window (12) that link up, the one end that box (1) was seted up second window (12) is just to the printed matter surface that detects, slide rail set spare (2) and lens subassembly (3) all set up the one end of seting up first window (11) in box (1), slide rail set spare (2) are connected with the surface mounting of first window (11) department of box (1); the interior of the box body (1), the first window (11) and the second window (12) jointly form a viewing light path of the lens component (3) on the surface of the to-be-detected print, and light emitted by the surface of the to-be-detected print enters the lens component (3) through the viewing light path; the lens component (3) is connected with the sliding rail component (2) in a sliding way, so that the distance between the lens component (3) and the surface of the printed product to be detected is adjusted.
On the basis of the technical scheme, preferably, the slide rail assembly (2) comprises a base (21), a linear driving mechanism (22) and a plurality of guide columns (23); a linear driving mechanism (22) and a plurality of guide columns (23) are arranged on one side, close to the first window (11), of the base (21), one ends of the guide columns (23) are fixedly connected with the base (21), and the other ends of the guide columns (23) extend along a view finding light path; the lens component (3) is fixedly connected with the output end of the linear driving mechanism (22), a guide hole (30) matched with the guide post (23) is further formed in the lens component (3), the guide post (23) penetrates through the guide hole (30), and the linear driving mechanism (22) can drive the lens component (3) to slide along the guide post (23).
Further preferably, the lens assembly (3) further comprises a mounting seat (31), a first camera unit (32) and a second camera unit (33); a guide hole (30) is arranged on the mounting seat (31); the first camera shooting unit (32) and the second camera shooting unit (33) are adjacent and fixedly arranged at one end, close to the first window (11), of the mounting seat (31); the viewfinder lenses of the first camera unit (32) and the second camera unit (33) are aligned with the surface of the to-be-detected printed product.
Further preferably, the linear driving mechanism (22) is a screw rod motor mechanism, and the output end of the linear driving mechanism (22) is in threaded connection with the mounting seat (31).
Still further preferably, a groove (34) which is matched with the linear driving mechanism (22) in shape is formed in the mounting seat (31), and when the linear driving mechanism (22) drives the lens component (3) to move towards the direction far away from the box body (1), the part of the linear driving mechanism (22) exceeding the sliding rail component (2) is located in the groove (34).
Preferably, the box body (1) is further internally provided with two stroboscopic light sources (4), the stroboscopic light sources (4) are fixedly arranged on the inner surface of one end, provided with the second window (12), of the box body (1), and the two stroboscopic light sources (4) and the light emitting directions thereof are arranged in a right-facing manner.
Still preferably, the light emitting positions of the stroboscopic light source (4) are provided with light-diffusing plates (5), and the light-diffusing plates (5) are arranged in parallel with the longitudinal central plane of the box body (1); the installation surfaces of other non-stroboscopic light sources (4) in the box body (1) are also provided with a reflective film (6).
Still further preferably, the device further comprises a controller (7), a first position detection unit (8) and a second position detection unit (9), wherein the controller (7) is fixedly arranged on the side surface of the base (21), the first position detection unit (8) and the second position detection unit (9) are both fixedly arranged on the outer side of the guide column (23), and the first position detection unit (8) and the second position detection unit (9) are arranged at intervals along the extension direction of the guide column (23); the first position detection unit (8), the second position detection unit (9), the linear driving mechanism (22) and the stroboscopic light source (4) are electrically connected with the controller (7).
On the basis of the technical scheme, preferably, the box body (1) is trapezoidal, and the projection area of one end, provided with the second window (12), of the box body (1) is larger than that of one end, provided with the first window (11).
The utility model provides a pair of miniature focusing mechanism of two cameras has following beneficial effect for prior art:
(1) the utility model can adjust the distance between two camera units on the lens component and the distance to be detected while ensuring the formation of a stable viewing light path by arranging the lens component with adjustable position at one end of the box body, thereby realizing the adjustment of the focal length;
(2) the slide rail component can drive the lens component to move stably along the direction of a viewing light path;
(3) the first camera unit and the second camera unit simultaneously view the printed product to be detected, so that the subsequent further image processing is facilitated;
(4) the stroboscopic light source in the box body can play a good light supplementing effect, and the light scattering plate and the reflective film can play a role in homogenizing light;
(5) the controller can realize the detection of the focusing position by matching with the first position detection unit and the second position detection unit, and ensures that two camera units on the lens assembly focus simultaneously.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a dual-camera micro focusing mechanism of the present invention;
FIG. 2 is a front view of the dual-camera micro focusing mechanism of the present invention in a half-section view;
fig. 3 is a bottom view of the dual-camera micro focusing mechanism of the present invention;
fig. 4 is a perspective view of the slide rail assembly and the lens assembly of the dual-camera micro focusing mechanism according to the present invention in a combined state;
FIG. 5 is a front view of FIG. 4;
fig. 6 is a front view of the slide rail assembly and the lens assembly of the dual-camera micro focusing mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, 2 and 3, the utility model provides a dual-camera micro focusing mechanism, which comprises a box body 1, a slide rail component 2, a lens component 3, a stroboscopic light source 4, a light-diffusing plate 5, a reflective membrane 6 and a controller 7,
the box body 1 is used for supporting and fixing the slide rail component 2;
the slide rail component 2 is used for installing the position of the adjustable lens component 3;
the lens component 3 aims at the surface of the printing to be detected to carry out framing and imaging.
Specifically, the box body 1 is hollow, a through first window 11 is arranged at one end of the box body 1, a through second window 12 is arranged at the other end of the box body, one end of the box body 1, provided with the second window 12, is opposite to the surface of a to-be-detected printed product, the slide rail assembly 2 and the lens assembly 3 are both arranged at one end of the box body 1, provided with the first window 11, and the slide rail assembly 2 is fixedly connected with the outer surface of the box body 1 at the first window 11; the interior of the box body 1, the first window 11 and the second window 12 jointly form a viewing light path of the lens component 3 on the surface of the to-be-detected printed product, and light emitted by the surface of the to-be-detected printed product enters the lens component 3 through the viewing light path; the lens assembly 3 is slidably connected with respect to the slide rail assembly 2, so as to adjust the distance between the lens assembly 3 and the surface of the print to be detected. As can be seen from the figure, the box body 1 and the slide rail assembly 2 jointly limit the position and the view finding direction of the lens assembly 3, so that light which is interfered by the outside is prevented from entering the lens assembly 3, and the imaging quality is ensured.
The slide rail component 2 comprises a base 21, a linear driving mechanism 22 and a plurality of guide posts 23; a linear driving mechanism 22 and a plurality of guide posts 23 are arranged on one side of the base 21 close to the first window 11, one end of each guide post 23 is fixedly connected with the base 21, and the other end of each guide post 23 extends along a view finding light path; the lens assembly 3 is fixedly connected with the output end of the linear driving mechanism 22, the lens assembly 3 is further provided with a guide hole 30 matched with the guide post 23, the guide post 23 penetrates through the guide hole 30, and the linear driving mechanism 22 can drive the lens assembly 3 to slide along the guide post 23. As can be seen from fig. 4, the slide rail assembly 2 is connected to the box body 1 through the base 21, the base 21 is embedded with the linear driving mechanism 22, and the lens assembly 3 linearly moves along the axial direction of the guide post 23 under the driving of the linear driving mechanism 22, and approaches to or leaves away from the to-be-detected print. To ensure smooth movement, a bushing may be further provided in the guide hole 30 to reduce friction.
As shown in fig. 4, the lens assembly 3 further includes a mount 31, a first imaging unit 32, and a second imaging unit 33; the mounting seat 31 is provided with a guide hole 30; the first camera unit 32 and the second camera unit 33 are adjacent and fixedly arranged at one end of the mounting seat 31 close to the first window 11; the viewfinder lenses of the first camera unit 32 and the second camera unit 33 are aligned with the surface of the print to be detected. The first camera unit 32 and the second camera unit 33 can simultaneously perform framing imaging, so that on one hand, the framing range is enlarged, and the two camera units can detect the surface area of a large-width printed product; on the other hand, the two camera units are used for simultaneously finding a view of the same area of the printed product, and then the external software is fused, so that the imaging quality is improved.
The utility model discloses in, linear drive mechanism 22 is lead screw motor mechanism, linear drive mechanism 22's output and 31 threaded connection of mount pad. The lead screw motor has a position holding function and can be stably held at the current position after the focal length is adjusted. Of course, the linear driving mechanism 22 may be other linear motion mechanisms having a position locking function.
The mounting seat 31 is provided with a groove 34 with a shape matched with that of the linear driving mechanism 22, and when the linear driving mechanism 22 drives the lens assembly 3 to move towards a direction away from the box body 1, a part of the linear driving mechanism 22, which exceeds the sliding rail assembly 2, is located in the groove 34. The similar-shaped recess 34 prevents the lens assembly 3 from interfering with the mount 31 when moving, ensuring a range of focal length adjustment.
As shown in fig. 2 and 3, two stroboscopic light sources 4 are further arranged in the box body 1, the stroboscopic light sources 4 are fixedly arranged on the inner surface of one end of the box body 1, which is provided with the second window 12, and the two stroboscopic light sources 4 and the light emitting directions thereof are both arranged just opposite to each other. The flickering frequency of the stroboscopic light source 4 is consistent with the running speed of the printed matter to be detected, and stroboscopic illumination can be provided for the lens component 3 during view finding.
In addition, the light emitting positions of the stroboscopic light source 4 are all provided with light-diffusing plates 5, and the light-diffusing plates 5 are arranged in parallel with the longitudinal central plane of the box body 1; and a reflecting film 6 is also arranged on the mounting surface of other non-stroboscopic light sources 4 in the box body 1. The light that diffusion sheet 5 and reflective membrane 6 can advance to send stroboscopic light source 4 carries out equipartition and diffusion, improves the luminance in the box 1, better provides illuminating effect.
For better realization focus adjustment, the utility model discloses still include controller 7, first position detecting element 8 and second position detecting element 9, the fixed side that sets up at base 21 of controller 7, first position detecting element 8 and the equal fixed outside that sets up at guide post 23 of second position detecting element 9, and first position detecting element 8 and second position detecting element 9 set up along the extending direction interval of guide post 23, first camera unit 32, second camera unit 33, first position detecting element 8, second position detecting element 9, sharp actuating mechanism 22 and stroboscopic light source 4 all with 7 electric connection of controller. The first position detection unit 8 and the second position detection unit 9 may correspond to the maximum and minimum focal positions of the first imaging unit 32 and the second imaging unit 33, respectively. The utility model discloses a first position detection unit 8 and second position detection unit 9 can adopt hall element, and is corresponding, and one side that closes on first position detection unit 8 and second position detection unit 9 at mount pad 31 sets up magnetic element, and first position detection unit 8 and second position detection unit 9 detect the magnetic field signal and change, can send corresponding detected signal to controller 7.
As shown in fig. 1, the box 1 of the present invention is trapezoidal, and the projection area of the box 1 with one end of the second window 12 is larger than the projection area with one end of the first window 11. The structure is more suitable for imaging detection of a large-width to-be-detected print.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a miniature focusing mechanism of two cameras which characterized in that: the detection device comprises a box body (1), a sliding rail component (2) and a lens component (3), wherein the box body (1) is hollow, a through first window (11) is arranged at one end of the box body (1), a through second window (12) is arranged at the other end of the box body, one end, provided with the second window (12), of the box body (1) is opposite to the surface of a printed product to be detected, the sliding rail component (2) and the lens component (3) are both arranged at one end, provided with the first window (11), of the box body (1), and the sliding rail component (2) is fixedly connected with the outer surface of the first window (11) of the box body (1); the interior of the box body (1), the first window (11) and the second window (12) jointly form a viewing light path of the lens component (3) on the surface of the to-be-detected print, and light emitted by the surface of the to-be-detected print enters the lens component (3) through the viewing light path; the lens component (3) is connected with the sliding rail component (2) in a sliding way, so that the distance between the lens component (3) and the surface of the printed product to be detected is adjusted.
2. The dual-camera miniature focusing mechanism of claim 1 wherein: the sliding rail assembly (2) comprises a base (21), a linear driving mechanism (22) and a plurality of guide columns (23); a linear driving mechanism (22) and a plurality of guide columns (23) are arranged on one side, close to the first window (11), of the base (21), one ends of the guide columns (23) are fixedly connected with the base (21), and the other ends of the guide columns (23) extend along a view finding light path; the lens component (3) is fixedly connected with the output end of the linear driving mechanism (22), a guide hole (30) matched with the guide post (23) is further formed in the lens component (3), the guide post (23) penetrates through the guide hole (30), and the linear driving mechanism (22) can drive the lens component (3) to slide along the guide post (23).
3. The dual-camera miniature focusing mechanism of claim 2, wherein: the lens assembly (3) further comprises a mounting seat (31), a first camera shooting unit (32) and a second camera shooting unit (33); a guide hole (30) is arranged on the mounting seat (31); the first camera shooting unit (32) and the second camera shooting unit (33) are adjacent and fixedly arranged at one end, close to the first window (11), of the mounting seat (31); the viewfinder lenses of the first camera unit (32) and the second camera unit (33) are aligned with the surface of the to-be-detected printed product.
4. A dual-camera miniature focusing mechanism according to claim 3 wherein: the linear driving mechanism (22) is a screw rod motor mechanism, and the output end of the linear driving mechanism (22) is in threaded connection with the mounting seat (31).
5. The dual-camera miniature focusing mechanism of claim 4 wherein: the mounting seat (31) is provided with a groove (34) matched with the linear driving mechanism (22) in shape, and when the linear driving mechanism (22) drives the lens component (3) to move towards the direction far away from the box body (1), the part of the linear driving mechanism (22) exceeding the sliding rail component (2) is positioned in the groove (34).
6. A dual-camera miniature focusing mechanism according to claim 3 wherein: the box body (1) is internally provided with two stroboscopic light sources (4), the stroboscopic light sources (4) are fixedly arranged on the inner surface of one end, provided with the second window (12), of the box body (1), and the two stroboscopic light sources (4) and the light emitting directions thereof are arranged just opposite to each other.
7. The dual-camera miniature focusing mechanism of claim 6, wherein: the light emitting positions of the stroboscopic light sources (4) are provided with light-diffusing plates (5), and the light-diffusing plates (5) are arranged in parallel with the longitudinal central plane of the box body (1); the installation surfaces of other non-stroboscopic light sources (4) in the box body (1) are also provided with a reflective film (6).
8. The dual-camera miniature focusing mechanism of claim 6, wherein: the device is characterized by further comprising a controller (7), a first position detection unit (8) and a second position detection unit (9), wherein the controller (7) is fixedly arranged on the side face of the base (21), the first position detection unit (8) and the second position detection unit (9) are fixedly arranged on the outer side of the guide post (23), and the first position detection unit (8) and the second position detection unit (9) are arranged at intervals along the extending direction of the guide post (23); the first position detection unit (8), the second position detection unit (9), the linear driving mechanism (22) and the stroboscopic light source (4) are electrically connected with the controller (7).
9. The dual-camera miniature focusing mechanism of claim 1 wherein: the box body (1) is trapezoidal, and the projection area of one end, provided with the second window (12), of the box body (1) is larger than that of one end, provided with the first window (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400950.0U CN212343896U (en) | 2020-07-16 | 2020-07-16 | Miniature focusing mechanism with double cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400950.0U CN212343896U (en) | 2020-07-16 | 2020-07-16 | Miniature focusing mechanism with double cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212343896U true CN212343896U (en) | 2021-01-12 |
Family
ID=74080796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021400950.0U Active CN212343896U (en) | 2020-07-16 | 2020-07-16 | Miniature focusing mechanism with double cameras |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212343896U (en) |
-
2020
- 2020-07-16 CN CN202021400950.0U patent/CN212343896U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1892295A (en) | Optical apparatus having image-blur correction/reduction system | |
| CN111766047B (en) | Laser display visual speckle detection device for simulating human eyes | |
| CN212343896U (en) | Miniature focusing mechanism with double cameras | |
| CN1300616C (en) | Integrative zoom lens | |
| WO2013053315A1 (en) | Contact image sensor with scan arrays | |
| CN112449031B (en) | Screen module and electronic equipment | |
| JP4624693B2 (en) | Document scanning unit and image reading apparatus using the same. | |
| CN201732200U (en) | Automatic zooming module device | |
| CN210487621U (en) | Touch screen picture defect imaging device | |
| CN209560192U (en) | A kind of micrometron | |
| CN209231565U (en) | The focusing of microscope structure of optical fiber splicer | |
| CN212932356U (en) | Still picture detects camera running gear | |
| CN210626842U (en) | Quick automatic focusing system, optical machine and camera | |
| CN219780270U (en) | Automatic focusing light source structure of multi-view camera | |
| CN217237673U (en) | Cell counting appearance two-dimensional scanning mobile device | |
| CN217654968U (en) | Cell counting instrument | |
| CN219225136U (en) | Lens focusing adjusting structure | |
| CN209471036U (en) | A kind of novel one-touch measuring instrument | |
| TWI745180B (en) | Imaging lens assembly module, imaging lens assembly driving module and electronic device | |
| CN218866196U (en) | Focusing structure of laser lighting lens, laser lighting lens and laser lighting equipment | |
| CN115086502B (en) | Non-contact scanning device | |
| CN219512502U (en) | Automatic focusing and dimming device | |
| CN217879940U (en) | Camera device and display device | |
| CN218298080U (en) | Edge detection mechanism for mobile phone display screen cover plate | |
| CN210376934U (en) | Automatic optical detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |