Coaxial light source with built-in camera

Abstract

The utility model relates to the technical field of visual inspection equipment, in particular to a coaxial light source with a built-in camera, which comprises a base and an outer shell arranged on the base, the camera is arranged in the outer shell, an inner shell is arranged in the outer shell, one end of the inner shell is provided with a detection port, the detection port is communicated with the outside, and the camera is arranged in the inner shell. A semi-transparent and semi-reflecting mirror is arranged in the inner shell, a bottom light source is arranged in the inner shell, light rays of the bottom light source penetrate through the semi-transparent and semi-reflecting mirror and are emitted from a detection opening, and a coaxial view window is formed in the surface of the side, facing the camera, of the inner shell; incident light entering the detection port is reflected by the semi-transparent semi-reflecting mirror to enter the camera shooting end of the camera. The LED lamp has the advantages of being convenient to install and not prone to being influenced by external light.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of visual inspection equipment, especially to a coaxial light source with built-in camera. BACKGROUND

[0002] The visual inspection system is to use the industrial camera to replace the human eyes to complete the identification, measurement, positioning and other functions. The visual inspection system is generally composed of a camera, a lens and a light source, which can replace the manual detection of bar code characters, cracks, packaging, surface layer completeness and concave, and can effectively improve the detection speed and precision of the production line, greatly improving the yield and quality.

[0003] In the visual inspection, the camera is used to take pictures of the product for detection. When the camera takes pictures, a light source is needed to illuminate the surface of the product, so that the camera can take clearer pictures. The current corner coaxial light source uses high-density LED array to emit uniform light. After the light is reflected or refracted by the special coating of the semi-transmissive lens, the camera is kept on the same axis. This design makes the light perpendicular to the observed object, significantly reduces the interference caused by light scattering and reflection, and provides clear and shadow-free images. This makes the corner coaxial light source widely used and recognized in machine vision systems. However, in the traditional corner coaxial light source, the camera lens and the product detection surface are installed separately. The installation method is not only inconvenient, but also easily affected by external light, causing interference and reducing the detection accuracy. UTILITY MODEL CONTENTS

[0004] In order to avoid the influence of external light, the utility model provides a coaxial light source with built-in camera to solve the above problems.

[0005] The utility model provides a coaxial light source with built-in camera, adopts the following technical scheme:

[0006] A coaxial light source with built-in camera, comprising a base and an outer shell arranged on the base, a camera arranged in the outer shell, an inner shell arranged in the outer shell, a detection port arranged at one end of the inner shell, the detection port being in communication with the outside, a semi-transmissive and semi-reflective mirror arranged in the inner shell, a bottom light source arranged in the inner shell, the light of the bottom light source being transmitted through the semi-transmissive and semi-reflective mirror and emitted from the detection port, a coaxial viewing window arranged on the side surface of the inner shell facing the camera, and the incident light entering the detection port being reflected by the semi-transmissive and semi-reflective mirror and entering the camera.

[0007] Further, an external light source is arranged on the outer shell, and the light emitting end of the external light source faces the detection port.

[0008] Further, the outer light sources are six, and the six outer light sources are arranged at intervals along the detection opening.

[0009] Further, the base is provided with a fixing block, the camera is fixedly arranged on the fixing block, the base is provided with a long waist hole arranged along the direction close to or away from the inner shell, and the base and the fixing block are threadedly provided with a bolt, and the bolt is arranged in the long waist hole.

[0010] Further, the outer side wall of the base is provided with a plurality of screws, and the side wall of the base is provided with a plurality of screw holes.

[0011] Further, one side surface of the shell is provided with a dismounting opening, the dismounting opening is covered with a cover plate, and a plurality of screws are threadedly connected between the cover plate and the shell.

[0012] Further, the base is provided with a plurality of mounting holes.

[0013] Further, the shell is provided with a light source power supply opening and a camera interface.

[0014] In summary, the coaxial light source with the built-in camera has the following beneficial technical effects:

[0015] When the product is detected, the product is placed at the detection opening, then the bottom light source is powered on to emit light, the light transmits through the half-transmission half-reflection mirror and passes through the detection opening to irradiate the product surface, the product reflects the light back to the detection opening, the light is reflected by the half-transmission half-reflection mirror into the camera lens, and the camera shoots the product surface to detect, and the camera is not easily disturbed by external light in the whole process, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model.

[0017] Figure 2 It is an explosion schematic view of the utility model.

[0018] Figure 3 It is an explosion schematic view of the utility model.

[0019] Figure 4 It is a structure schematic view of the inner shell in the utility model.

[0020] In the diagram: 1. Base; 11. Fixing block; 12. Long slotted hole; 13. Screw hole; 14. Mounting hole; 2. Outer shell; 21. External light source; 22. Opening; 23. Cover plate; 24. Light source power supply port; 25. Camera interface; 3. Camera; 4. Inner shell; 41. Detection port; 42. Semi-transparent and semi-reflective mirror; 43. Bottom light source; 44. Coaxial viewing window; Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] This utility model discloses a coaxial light source with a built-in camera, such as... Figures 1-4 As shown, it includes a base 1 and a housing 2 fixedly installed on the base 1. Both the housing 2 and the base 1 are square in shape. Multiple screws are connected to the four outer side walls of the housing 2. Multiple screw holes 13 are opened on the four side walls of the base 1. The screws are threaded into the screw holes 13, so that the housing 2 can be fixed on the base 1.

[0024] Meanwhile, the shell 2 is provided with an inner shell 4, one end of the inner shell 4 is fixedly installed on the base 1, the other end of the inner shell 4 is provided with a detection port 41, the shell 2 is provided with a through port, the detection port 41 is communicated with the outside through the through port, and the inner shell 4 is fixedly installed with a semi-transparent half-mirror 42, the inner shell 4 is fixedly installed with a bottom light source 43 on the end close to the base 1, the semi-transparent half-mirror 42 is located between the detection port 41 and the bottom light source 43, the light of the bottom light source 43 is emitted from the detection port 41 through the semi-transparent half-mirror 42, and the product is placed at the detection port 41, and the light can illuminate the surface of the product. In addition, the shell 2 is provided with a camera 3, the surface of the side of the inner shell 4 facing the camera 3 is provided with a coaxial window 44, and the angles between the semi-transparent half-mirror 42 and the camera 3 axis and the detection port 41 axis can be set to 45 degrees, so that when the product reflects the light into the detection port 41, the incident light entering the detection port 41 is reflected by the semi-transparent half-mirror 42 and enters the camera 3, so that the camera 3 can clearly shoot the surface of the product.

[0025] Meanwhile, the base 1 is provided with a fixed block 11, the camera 3 is fixedly installed on the fixed block 11, the base 1 is provided with two long waist holes 12, the long waist holes 12 are arranged along the direction close to or away from the inner shell 4, and the base 1 and the fixed block 11 are threadedly provided with a bolt, the screw rod of the bolt passes through the long waist hole 12 and is threadedly connected to the fixed block 11, when people need to adjust the distance between the camera 3 lens and the inner shell 4, the bolt is unscrewed, the fixed block 11 is moved on the base 1, when the position is adjusted, the bolt is tightened, and the distance between the camera 3 lens and the inner shell 4 can be conveniently adjusted.

[0026] In addition, the shell 2 is fixedly installed with an outer light source 21, the light emitting end of the outer light source 21 faces the detection port 41, the number of the outer light source 21 is six, the six outer light sources 21 are arranged at intervals along the detection port 41, the six outer light sources 21 are arranged in an equilateral hexagon, the outer light source 21 is a high-brightness light source, and the outer light source 21 can provide additional illumination, so that the product surface is not easy to appear shadow. Meanwhile, the side wall of the shell 2 away from the inner shell 4 is provided with a light source power supply port 24 and a camera 3 interface 25, people can connect the light source power supply to the bottom light source 43 and the outer light source 21 through the light source power supply port 24, and the camera 3 interface 25 can conveniently connect the network line and the camera 3 power line to the camera 3. In addition, the side surface of the shell 2 away from the base 1 is provided with a dismounting port, the dismounting port is covered with a cover plate 23, a plurality of screws are threadedly connected between the cover plate 23 and the shell 2, and people can conveniently replace the camera 3 through the dismounting port. In addition, the base 1 is provided with a plurality of mounting holes 14, and the mounting holes 14 can conveniently install the base 1 on the equipment.

[0027] The implementation principle of the coaxial light source with a built-in camera is as follows: when detecting a product, the product is placed at the detection opening 41, then the bottom light source 43 is powered on to emit light, the light transmits through the half-transmissive half-reflective mirror 42 and passes through the detection opening 41 to irradiate the product surface, the product reflects the light back to the detection opening 41, the light is reflected by the half-transmissive half-reflective mirror 42 into the camera 3 lens, the camera 3 shoots the product surface to detect, and the camera 3 is not easily disturbed by external light in the whole process, and the detection accuracy is improved.

[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above in a preferred embodiment, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the utility model, and the equivalent embodiments with equivalent changes are equivalent to the above embodiments. Any simple modification, equivalent change and modification of the above embodiments belong to the scope of the technical solution of the utility model.

Claims

1. A coaxial light source with a built-in camera, characterized by: The utility model provides a camera, including base (1), and the shell (2) of setting on base (1), be provided with camera (3) in shell (2), be provided with inner shell (4) in shell (2), one end of inner shell (4) is provided with detection port (41), detection port (41) is communicated with outside, be provided with half -transparent half -mirror (42) in inner shell (4), be provided with bottom light source (43) in inner shell (4), the light of bottom light source (43) is shot from detection port (41) through half -transparent half -mirror (42), the same coaxial window (44) is provided with in the side surface of inner shell (4) towards camera (3), the incident light of entering detection port (41) is reflected by half -transparent half -mirror (42) and enters the camera end of camera (3).

2. A coaxial light source with a built-in camera according to claim 1, characterized in that: The shell (2) is provided with an external light source (21), and the light emitting end of the external light source (21) faces the detection port (41) outside.

3. A coaxial light source with a built-in camera according to claim 2, characterized in that: The external light source (21) is six, and the six external light sources (21) are arranged along the detection port (41) at intervals.

4. The coaxial light source with a built-in camera according to claim 1, characterized in that: The base (1) is provided with a fixed block (11), and the camera (3) is fixedly arranged on the fixed block (11). The base (1) is provided with a long waist hole (12), and the long waist hole (12) is arranged along the direction close to or away from the inner shell (4). The base (1) and the fixed block (11) are screw-connected by a bolt, and the bolt is arranged in the long waist hole (12).

5. The coaxial light source with a built-in camera according to claim 1, wherein: The outer side wall of the base (1) is provided with a plurality of screws, and the sidewall of the shell (2) is provided with a plurality of screw holes (13). The screws are screw-connected to the screw holes (13).

6. The coaxial light source with a built-in camera according to claim 1, characterized in that: One side surface of the shell (2) is provided with a dismounting opening, and the dismounting opening is covered with a cover plate (23). A plurality of screws are screw-connected between the cover plate (23) and the shell (2).

7. The coaxial light source with a built-in camera according to claim 1, characterized in that: The base (1) is provided with a plurality of mounting holes (14).

8. The coaxial light source with a built-in camera according to claim 1, characterized in that: The shell (2) is provided with a light source power supply port (24) and a camera (3) interface (25).

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