Liquid-cooled sphere integral light source and visual inspection system

Abstract

The utility model relates to the technical field of light source equipment, and particularly discloses a liquid-cooled sphere integral light source, which comprises an annular liquid-cooled base provided with a liquid inlet joint, a liquid outlet joint and a liquid-cooled flow channel communicated with the liquid inlet joint and the liquid outlet joint; the diffusion cover is mounted on the annular liquid cooling base, and an in-cover space is defined by the diffusion cover and the annular liquid cooling base; and the annular lamp panel is mounted on the annular liquid cooling base and is used for irradiating the diffusion cover. The liquid-cooled spherical integral light source provided by the utility model can effectively solve the problem that the conventional spherical integral light source is lower in heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of light source equipment, in particular to a liquid-cooled spherical integrating light source. Background Art

[0002] Spherical integral light sources can evenly illuminate objects with convex and concave surfaces and complex shapes, and are widely used in various machine vision inspection scenarios. Existing spherical integral light sources mainly rely on natural cooling to dissipate heat, which has a slow heat dissipation speed and low luminous power, seriously affecting the accuracy of visual inspection.

[0003] Therefore, it is necessary to improve the existing spherical integrating light source to solve the problem of slow heat dissipation.

[0004] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0005] One purpose of the utility model is to provide a liquid-cooled spherical integrating light source, which can effectively solve the problem of low heat dissipation efficiency of the existing spherical integrating light sources.

[0006] To achieve the above objectives, on the one hand, the utility model provides a liquid-cooled spherical integrating light source, comprising:

[0007] An annular liquid cooling base, wherein the annular liquid cooling base is provided with a liquid inlet joint, a liquid outlet joint, and a liquid cooling flow channel connecting the liquid inlet joint and the liquid outlet joint;

[0008] A diffusion cover, the diffusion cover is installed on the annular liquid cooling base and surrounds the annular liquid cooling base to form an inner cover space;

[0009] An annular light panel is mounted on the annular liquid-cooled base and is used to illuminate the diffusion cover.

[0010] Optionally, an annular mounting groove is provided on the top surface of the annular liquid cooling base, and the annular lamp panel is fixedly installed in the annular mounting groove.

[0011] Optionally, a light-shielding cover is provided on the outer side of the diffusion cover and is mounted and fixed to the annular liquid cooling base.

[0012] Optionally, a cover sealing strip is provided between the light-shielding cover and the annular liquid-cooling base.

[0013] Optionally, a cover detection port is provided on the top of the light-shielding cover;

[0014] The outer cover detection port is provided with an outer cover enhancement lens and an outer cover annular pressing plate which is fixedly mounted on the light shielding outer cover and cooperates with the light shielding outer cover to press the outer cover enhancement lens.

[0015] Optionally, an upper lens sealing strip is provided between the outer cover enhancement lens and the light-shielding outer cover.

[0016] Optionally, the diffusion cover is provided with a light-transmitting hole at a position directly below the outer cover multiplier lens.

[0017] Optionally, the annular liquid-cooled base is provided with a base annular light outlet, a base enhancement lens is installed at the base annular light outlet, and a base annular pressure plate is fastened to the bottom surface of the annular liquid-cooled base and cooperates with the annular liquid-cooled base to clamp the base enhancement lens.

[0018] Optionally, a lower lens sealing strip is provided between the base enhancement lens and the annular liquid cooling base.

[0019] On the other hand, a visual inspection system is provided, comprising a liquid-cooled spherical integrating light source for illuminating a workpiece to be inspected, and a camera module located above the liquid-cooled spherical integrating light source and for acquiring image information of the workpiece to be inspected.

[0020] The beneficial effect of the utility model is that it provides a liquid-cooled spherical integrating light source, and the workpiece to be tested is placed under the liquid-cooled spherical integrating light source, and the annular light board illuminates the diffusion cover, so that the entire diffusion cover is evenly illuminated, and the workpiece to be tested is illuminated from all directions, so as to perform visual inspection on the workpiece to be tested. During the operation of the workpiece to be tested, the coolant enters the liquid cooling channel from the liquid inlet joint, takes away the heat on the annular liquid cooling base and the annular light board, and then flows out through the liquid outlet joint, thereby realizing rapid heat dissipation and cooling of the annular liquid cooling base and the annular light board.

[0021] Therefore, the liquid-cooled spherical integrating light source provided by the utility model can effectively solve the problem of low heat dissipation efficiency of the existing spherical integrating light sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic cross-sectional view of a liquid-cooled spherical integrating light source provided in an embodiment;

[0024] Figure 2An exploded diagram of a liquid-cooled spherical integrating light source provided in an embodiment.

[0025] In the figure:

[0026] 1. Annular liquid cooling base; 101. Liquid inlet connector; 102. Liquid outlet connector; 103. Liquid cooling channel; 104. Annular mounting groove;

[0027] 2. Diffuser cover; 201. Light transmission hole;

[0028] 3. Ring light panel;

[0029] 4. Shading cover;

[0030] 5. External cover with lens;

[0031] 6. Outer cover annular pressure plate;

[0032] 7. Base lens enhancement;

[0033] 8. Base annular pressure plate;

[0034] 9. Sealing strip for outer cover;

[0035] 10. Upper lens sealing strip;

[0036] 11. Lower lens sealing strip. DETAILED DESCRIPTION

[0037] The reference to "embodiment" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The word "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present invention, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0038] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which the present invention belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit the present invention.

[0039] In the description of the present invention, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0040] In the present invention, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0041] Without further restrictions, in the present invention, the words "include", "comprises", "has" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0042] Similar to the understanding in the Examination Guidelines, in the present invention, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of the present invention, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0043] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0044] Unless otherwise expressly specified or limited, in the description of the embodiments of the present utility model, the terms "install", "connect", "connect", "fix", "set" and the like used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the technical field of the present utility model, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0045] The utility model provides a liquid-cooled spherical integrating light source and a visual inspection system, which are suitable for application scenarios in which visual inspection of a workpiece to be inspected is performed after the workpiece is illuminated, and can effectively solve the problem of low heat dissipation efficiency of the existing spherical integrating light source.

[0046] The visual inspection system comprises a liquid-cooled spherical integrating light source for illuminating a workpiece to be inspected, and a camera module located above the liquid-cooled spherical integrating light source and for acquiring image information of the workpiece to be inspected.

[0047] See also Figure 1 and Figure 2 The liquid-cooled spherical integrating light source comprises an annular liquid-cooling base 1, a diffusion cover 2, and an annular light board 3. The annular liquid-cooling base 1 is provided with a liquid inlet joint 101, a liquid outlet joint 102, and a liquid-cooling channel 103 connecting the liquid inlet joint 101 and the liquid outlet joint 102; the diffusion cover 2 is mounted on the annular liquid-cooling base 1, and is surrounded by the annular liquid-cooling base 1 to form an inner cover space; the annular light board 3 is mounted on the annular liquid-cooling base 1, and is used to illuminate the diffusion cover 2.

[0048] The liquid-cooled spherical integrating light source provided in this embodiment places the workpiece to be tested under the liquid-cooled spherical integrating light source, and the annular light board 3 illuminates the diffusion cover 2, so that the entire diffusion cover 2 emits light evenly and illuminates the workpiece to be tested from all directions, so as to perform visual inspection on the workpiece to be tested. During the operation of the workpiece to be tested, the coolant enters the liquid cooling channel 103 from the liquid inlet joint 101, takes away the heat on the annular liquid cooling base 1 and the annular light board 3, and then flows out through the liquid outlet joint 102, thereby realizing rapid heat dissipation and cooling of the annular liquid cooling base 1 and the annular light board 3.

[0049] Therefore, the liquid-cooled spherical integrating light source provided by the utility model can effectively solve the problem of low heat dissipation efficiency of the existing spherical integrating light sources.

[0050] Optionally, the top surface of the annular liquid-cooling base 1 is provided with an annular mounting groove 104 , and the annular light board 3 is fixedly installed in the annular mounting groove 104 , thereby achieving the installation and fixation of the annular light board 3 .

[0051] The outer side of the diffusion cover 2 is provided with a light shielding cover 4 fixed to the annular liquid cooling base 1. Optionally, the light shielding cover 4 is a metal cover, which can prevent the light from being emitted outward and causing the brightness of the space inside the cover to decay, and has a certain structural strength to protect the diffusion cover 2 from damage from the outside.

[0052] In this embodiment, a cover detection port is provided at the top of the light-shielding cover 4; a cover enhancement lens 5 and a cover annular pressing plate 6 which is fixedly mounted on the light-shielding cover 4 and cooperates with the light-shielding cover 4 to press the cover enhancement lens 5; accordingly, a light-transmitting hole 201 is provided at a position of the diffusion cover 2 directly below the cover enhancement lens 5;

[0053] Furthermore, the annular liquid-cooled base 1 is provided with a base annular light outlet, at which a base enhancement lens 7 is installed, and a base annular pressure plate 8 is fastened to the bottom surface of the annular liquid-cooled base 1 and cooperates with the annular liquid-cooled base 1 to clamp the base enhancement lens 7.

[0054] When the workpiece to be tested needs to be inspected, the workpiece to be tested is placed under the base multiplier lens 7, and after the annular light board 3 is turned on, the annular light board 3 illuminates the entire diffusion cover 2; after the diffusion cover 2 diffuses the light, the workpiece to be tested is evenly illuminated from all angles;

[0055] Next, the camera module located above the outer cover enhancement lens 5 passes downward through the outer cover enhancement lens 5 and the base enhancement lens 7 in sequence to obtain image information of the workpiece to be measured, thereby completing visual inspection. In this embodiment, the outer cover enhancement lens 5 and the base enhancement lens 7 both include a lens body and an anti-reflection film coated on the lens body. The coating of the anti-reflection film can improve the light transmission performance and weaken the reflection performance, thereby suppressing the imaging problem caused by the reflection of the lens body, further improving the clarity of the image acquisition, and thereby improving the accuracy of visual inspection.

[0056] In this embodiment, a cover sealing strip 9 is provided between the light-shielding cover 4 and the annular liquid-cooled base 1, an upper lens sealing strip 10 is provided between the cover enhancement lens 5 and the light-shielding cover 4, and a lower lens sealing strip 11 is provided between the base enhancement lens 7 and the annular liquid-cooled base 1. The provision of the three sealing strips can effectively seal the internal space of the entire liquid-cooled spherical integrating light source, preventing water vapor, dust, etc. from entering the interior of the liquid-cooled spherical integrating light source.

[0057] In summary, the liquid-cooled spherical integrating light source and visual inspection system provided in this embodiment have the following advantages:

[0058] ① During the working process of the workpiece to be tested, the coolant enters the liquid cooling channel 103 from the liquid inlet joint 101, takes away the heat on the annular liquid cooling base 1 and the annular light board 3, and then flows out through the liquid outlet joint 102, thereby realizing rapid heat dissipation and cooling of the annular liquid cooling base 1 and the annular light board 3;

[0059] ② The outer cover enhancement lens 5 and the base enhancement lens 7 are provided to suppress the imaging problem caused by reflection, further improve the clarity of image acquisition, and thus improve the accuracy of visual detection;

[0060] ③ The setting of the three sealing strips can effectively seal the internal space of the entire liquid-cooled spherical integrating light source to prevent water vapor, dust, etc. from entering the interior of the liquid-cooled spherical integrating light source.

[0061] It should be noted that the linear drive mechanism mentioned in the present invention can be a cylinder, a hydraulic cylinder, an electric cylinder or a motor screw linear module, etc., and the rotary drive mechanism mentioned can be a brushed motor, a brushless motor, or a rotary cylinder, etc. The present invention does not limit the specific structural forms of the linear drive mechanism and the rotary drive mechanism.

[0062] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A liquid-cooled spherical integrating light source, characterized in that: include: An annular liquid cooling base (1), the annular liquid cooling base (1) being provided with a liquid inlet joint (101), a liquid outlet joint (102), and a liquid cooling flow channel (103) connecting the liquid inlet joint (101) and the liquid outlet joint (102); A diffusion cover (2), the diffusion cover (2) being mounted on the annular liquid cooling base (1) and surrounding the annular liquid cooling base (1) to form an inner cover space; An annular light panel (3), the annular light panel (3) being mounted on the annular liquid-cooling base (1) and being used for illuminating the diffusion cover (2).

2. The liquid-cooled spherical integrating light source according to claim 1, characterized in that: The top surface of the annular liquid cooling base (1) is provided with an annular mounting groove (104), and the annular lamp panel (3) is fixedly mounted in the annular mounting groove (104).

3. The liquid-cooled spherical integrating light source according to claim 1, characterized in that: The outer side of the diffusion cover (2) is provided with a light shielding outer cover (4) which is mounted and fixed to the annular liquid cooling base (1).

4. The liquid-cooled spherical integrating light source according to claim 3, characterized in that: An outer cover sealing strip (9) is provided between the light-shielding outer cover (4) and the annular liquid cooling base (1).

5. The liquid-cooled spherical integrating light source according to claim 3, characterized in that: The top of the light-shielding outer cover (4) is provided with an outer cover detection port; The outer cover detection port is provided with an outer cover enhancement lens (5), and an outer cover annular pressing plate (6) which is fixedly mounted on the light shielding outer cover (4) and cooperates with the light shielding outer cover (4) to press the outer cover enhancement lens (5).

6. The liquid-cooled spherical integrating light source according to claim 5, characterized in that: An upper lens sealing strip (10) is provided between the outer cover enhancement lens (5) and the light shielding outer cover (4).

7. The liquid-cooled spherical integrating light source according to claim 5, characterized in that: The diffusion cover (2) is provided with a light-transmitting hole (201) at a position directly below the outer cover enhancement lens (5).

8. The liquid-cooled spherical integrating light source according to claim 1, characterized in that: The annular liquid cooling base (1) is provided with an annular base light outlet, a base enhancement lens (7) is installed at the annular base light outlet, and a base annular pressure plate (8) is fixedly installed on the bottom surface of the annular liquid cooling base (1) and cooperates with the annular liquid cooling base (1) to clamp the base enhancement lens (7).

9. The liquid-cooled spherical integrating light source according to claim 8, characterized in that: A lower lens sealing strip (11) is provided between the base enhancement lens (7) and the annular liquid cooling base (1).

10. A visual inspection system, characterized in that: It comprises a liquid-cooled spherical integrating light source as described in any one of claims 1 to 9 for lighting a workpiece to be measured, and a camera module located above the liquid-cooled spherical integrating light source and for acquiring image information of the workpiece to be measured.

Images