CN111193855B

CN111193855B - Binocular 3D camera

Info

Publication number: CN111193855B
Application number: CN202010213485.8A
Authority: CN
Inventors: 李杜; 朱凤银; 范岐
Original assignee: Wuxi Changci Electric Co ltd
Current assignee: Wuxi Changci Electric Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2021-09-03
Anticipated expiration: 2040-03-24
Also published as: CN111193855A

Abstract

The invention relates to a binocular 3D camera which comprises a shell, wherein a laser is arranged in the middle of the shell, camera components are respectively arranged on two sides of the shell through first fixing pieces, the two camera components are symmetrically arranged relative to the laser, and a lens component is arranged in the shell in front of each camera component through a second fixing piece; the front side of the shell is of an inwards concave bending structure, the inwards concave bending structure comprises an inwards concave bottom surface, two sides of the inwards concave bottom surface are respectively extended with mutually symmetrical inwards concave side surfaces, the inwards concave bottom surface and the inwards concave side surfaces are respectively provided with an optical filter, and the three optical filters respectively correspond to the laser and the two lens assemblies. The two camera components are symmetrically arranged, a certain included angle is formed between the camera component and the laser, and between the lens component on each side and the camera component, a specific imaging function can be realized after the camera components and the laser are fixed according to the positioning groove mounting seat in the lower shell, the camera component is suitable for detecting structures such as planes, curved surfaces and the like, and the camera component is convenient to use and disassemble and has high imaging precision.

Description

Binocular 3D camera

Technical Field

The invention relates to the technical field of machine vision equipment, in particular to a binocular 3D camera.

Background

With the rapid development of the machine vision industry, a 3D (three-dimensional) camera based on the principle of laser triangulation is beginning to be applied to detection and measurement in various industrial fields. At present, most of 3D cameras widely applied to the market are of an integrated structure, a laser and a 3D camera lens are fixedly integrated together, the integrated 3D camera can only be applied to a specific visual field, the application is not flexible enough, and the use of a user is inconvenient. And the partial split type 3D camera is not easy to assemble, and needs a technician with professional knowledge to assemble, and the assembly takes long time. Therefore, the conventional 3D camera is either inflexible in view application or complicated in assembly, which is inconvenient for the user to use.

Disclosure of Invention

The applicant aims at the defects in the prior art, and provides a binocular 3D camera with a reasonable structure, so that the imaging precision is improved, and the convenience in use and assembly is improved.

The technical scheme adopted by the invention is as follows:

a binocular 3D camera comprises a shell, wherein a laser is arranged in the middle of the shell, camera components are arranged on two sides in the shell through first fixing pieces respectively, the two camera components are symmetrically arranged around the laser, and a lens component is arranged in the shell in front of each camera component through a second fixing piece; a terminal connector is arranged in the shell beside the laser; the front side of the shell is of an inwards concave bent structure, the inwards concave bent structure comprises an inwards concave bottom surface, two sides of the inwards concave bottom surface are respectively extended with mutually symmetrical inwards concave side surfaces, the inwards concave bottom surface and the inwards concave side surfaces are respectively provided with an optical filter, and the three optical filters respectively correspond to the laser and the two lens assemblies;

the opening at the top of the housing is closed by a top cover.

As a further improvement of the above technical solution:

the first fixing piece comprises a head fixing part and a tail fixing part, the head fixing part and the tail fixing part are used for fixing the head and the tail of the camera assembly respectively, a cavity for accommodating the head of the camera assembly is arranged in the head fixing part, and a connecting plate is integrally arranged on the side face of the head fixing part.

The middle part of the second fixing piece is provided with a through hole for the lens component to penetrate through, and the top surface and the bottom surface of the second fixing piece are respectively provided with a first mounting hole.

The middle part of the bottom surface of the shell is provided with a connecting block which is connected with the connecting plate in a matching way.

The bottom surface of the shell is provided with a positioning groove for positioning the second fixing piece, and the bottom surface of the shell is provided with a second mounting hole corresponding to the first mounting hole.

The laser is fixed in the housing by a mounting seat.

The rear side surface of the shell is provided with a first fixing groove for installing and fixing the terminal connector and a second fixing groove for installing the wire clamping piece.

The included angle between the lens component on each side and the central axis of the camera component along the horizontal direction is larger than zero.

The included angles formed by the laser and the central axes of the two side lens assemblies along the horizontal direction are equal and are 40-44 degrees.

The invention has the following beneficial effects:

the camera component, the lens component and the laser are conveniently installed in the lower shell through corresponding fixing pieces or fixing grooves, the two camera components are symmetrically arranged, the camera component and the laser are designed in a split mode, a certain included angle is formed between the camera component and the laser and between the lens component and the camera component on each side, a specific imaging function can be realized after the camera component and the laser are fixed according to the positioning groove installation seat in the lower shell, and the camera component is suitable for detecting structures such as planes, curved surfaces and the like in a zero device detection production line, convenient to use, high in imaging precision and convenient to detach.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural view of the present invention with the top cover removed.

Fig. 3 is a schematic view of the mounting structure of the camera module according to the present invention.

Fig. 4 is a schematic view of the mounting structure of the lens assembly of the present invention.

Fig. 5 is a schematic structural view of the inventive housing.

Wherein: 1. a top cover; 2. a housing; 3. an optical filter; 4. a terminal connector; 5. a laser; 6. a mounting seat; 7. a first fixing member; 8. a camera assembly; 9. a second fixing member; 10. line card firmware; 11. a second fixing groove; 12. positioning a groove; 15. a first fixing groove; 16. a lens assembly; 17. connecting blocks; 18. an inner concave bottom surface; 19. a concave side surface; 71. a tail fixing part; 72. a connecting plate; 73. a head fixing portion; 91. a first mounting hole; 121. and a second mounting hole.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the binocular 3D camera of the present embodiment includes a housing 2, a laser 5 is installed in the middle of the housing 2, camera assemblies 8 are installed on two sides of the housing 2 through first fixing members 7, the two camera assemblies 8 are symmetrically arranged with respect to the laser 5, and a lens assembly 16 is installed in the housing 2 in front of each camera assembly 8 through a second fixing member 9; a terminal connector 4 is arranged in the shell 2 beside the laser 5; the front side of the shell 2 is of an inwards concave bent structure, the inwards concave bent structure comprises an inwards concave bottom surface 18, inwards concave side surfaces 19 which are symmetrical to each other extend from two sides of the inwards concave bottom surface 18 respectively, the inwards concave bottom surface 18 and the inwards concave side surfaces 19 are respectively provided with optical filters 3, and the three optical filters 3 respectively correspond to the laser 5 and the two lens assemblies 16;

the opening at the top of the housing 2 is closed by a top cover 1.

As shown in fig. 3, the first fixing member 7 includes a head fixing portion 73 and a tail fixing portion 71, which are used for fixing the head and the tail of the camera module 8, respectively, a cavity for accommodating the head of the camera module 8 is disposed in the head fixing portion 73, and a connecting plate 72 is integrally disposed on a side surface of the head fixing portion 73.

As shown in fig. 4, the middle of the second fixing member 9 is provided with a through hole for the lens assembly 16 to pass through, and the top surface and the bottom surface of the second fixing member 9 are respectively provided with a first mounting hole 91.

As shown in fig. 5, the middle of the bottom of the housing 2 is provided with a connecting block 17 which is connected with the connecting plate 72 in a matching way.

The bottom surface of the shell 2 is provided with a positioning groove 12 for positioning the second fixing member 9, and the bottom surface of the shell is provided with a second mounting hole 121 corresponding to the first mounting hole 91.

The laser 5 is fixed in the housing 2 by means of a mounting 6.

The rear side of the housing 2 is provided with a first fixing groove 15 for fixing the terminal connector 4 and a second fixing groove 11 for fixing the wire locking member 10.

The angle between the lens assembly 16 on each side and the central axis of the camera assembly 8 in the horizontal direction is greater than zero.

The included angles of the laser 5 and the central axes of the two side lens assemblies 16 along the horizontal direction are equal and are 40-44 degrees.

The laser 5 and the lens assemblies 16 on the two sides are respectively installed in the lower shell through corresponding firmware, the disassembly and the assembly are convenient, the included angles formed by the central axes of the laser 5 and the lens assemblies 16 on the two sides along the horizontal direction are equal and are 40-44 degrees, and a certain angle is formed between the camera assembly 8 on each side and the central axis of the corresponding lens assembly 16, after the installation, the specific imaging angle and precision can be realized, the device is suitable for imaging detection of various surface structures of various parts, and the device is combined by multiple cameras for use, is particularly suitable for imaging of a cylindrical surface structure, and is high in precision and convenient to use. The central axis is understood to mean the direction in which the light emerges.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.

Claims

1. A binocular 3D camera, its characterized in that: the camera module comprises a shell (2), wherein a laser (5) is installed in the middle of the shell (2), camera assemblies (8) are installed on two sides of the interior of the shell (2) through first fixing pieces (7) respectively, the two camera assemblies (8) are symmetrically arranged relative to the laser (5), and a lens assembly (16) is installed in the shell (2) in front of each camera assembly (8) through a second fixing piece (9); a terminal connector (4) is arranged in the shell (2) beside the laser (5);

the front side of the shell (2) is of an inwards concave bent structure, the inwards concave bent structure comprises an inwards concave bottom surface (18), two sides of the inwards concave bottom surface (18) are respectively extended with mutually symmetrical inwards concave side surfaces (19), the inwards concave bottom surface (18) and the inwards concave side surfaces (19) are respectively provided with an optical filter (3), and the three optical filters (3) respectively correspond to the laser (5) and the two lens assemblies (16);

the opening at the top of the shell (2) is closed by a top cover (1);

the first fixing piece (7) comprises a head fixing part (73) and a tail fixing part (71), wherein the head fixing part (73) and the tail fixing part are used for fixing the head and the tail of the camera component (8) respectively, a cavity for accommodating the head of the camera component (8) is arranged in the head fixing part (73), and a connecting plate (72) is integrally arranged on the side surface of the head fixing part (73);

the included angles formed by the laser (5) and the central axes of the lens components (16) at the two sides along the horizontal direction are equal and are 40-44 degrees;

the middle part of the second fixing piece (9) is provided with a through hole for the lens component (16) to penetrate through, and the top surface and the bottom surface of the second fixing piece (9) are respectively provided with a first mounting hole (91);

the middle part of the bottom surface of the shell (2) is provided with a connecting block (17) which is matched and connected with the connecting plate (72);

the bottom surface of the shell (2) is provided with a positioning groove (12) for positioning the second fixing piece (9), and the bottom surface of the shell is provided with a second mounting hole (121) corresponding to the first mounting hole (91).

2. The binocular 3D camera of claim 1, wherein: the laser (5) is fixed in the shell (2) through a mounting seat (6).

3. The binocular 3D camera of claim 1, wherein: the rear side surface of the shell (2) is provided with a first fixing groove (15) for installing and fixing the wire end connector (4) and a second fixing groove (11) for installing the wire clamping piece (10).

4. The binocular 3D camera of claim 1, wherein: the included angle between the lens assembly (16) on each side and the central axis of the camera assembly (8) along the horizontal direction is larger than zero.