Corner detection light source and defect detection device

Abstract

The utility model relates to the technical field of light sources, and discloses a corner detection light source and a defect detection device, which comprise an L-shaped shell, a light condensation rod arranged in the L-shaped shell and a lamp panel assembly arranged in the L-shaped shell, the L-shaped shell is provided with an L-shaped groove, the light gathering rod is continuously bent into an L shape and installed at a groove opening of the L-shaped groove, and the lamp panel assemblies are arranged into an L shape and used for emitting light rays to the light gathering rod; light emitted by the lamp panel assembly can penetrate through the light gathering rod, and an L-shaped light spot is formed at the corner of the workpiece to be detected. The corner detection light source and the defect detection device disclosed by the utility model can be beneficial to reducing the detection cost and are convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of light source especially relates to a corner detection light source and defect detection device. BACKGROUND

[0002] Machine vision detection technology refers to the detection technology that uses image extraction device such as camera to replace human eye to measure and judge, has inestimable value in the aspect of detecting defects, has been widely used in various industries.

[0003] In machine vision detection technology, the influence of light source on detection result is extremely important. According to the different shape characteristics, light source is divided into point light source, linear light source, parallel light source, ring light source and the like. When the corner of the workpiece is detected, two detection light sources need to be set, one of which irradiates on one side surface constituting the corner, and the other detection light source irradiates on the other side surface constituting the corner, and then the detection camera takes a photo to detect the corner of the workpiece. The existing detection device for detecting the corner of the workpiece needs to set two detection light sources, and the light emitting angles of the two detection light sources need to be adjusted respectively, which improves the detection cost and is not convenient to install.

[0004] Therefore, it is necessary to design a corner detection light source and defect detection device, which can reduce the detection cost and is convenient to install.

[0005] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. UTILITY MODEL CONTENT

[0006] The utility model provides a corner detection light source and defect detection device, can be favorable to reduce detection cost, and convenient to install.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A corner detection light source, comprising an L-shaped shell, a light collecting rod installed in the L-shaped shell and a lamp plate assembly installed in the L-shaped shell;

[0009] The L-shaped shell is provided with an L-shaped groove, the light collecting rod is continuously bent into L-shaped and is installed at the groove opening of the L-shaped groove, and the lamp plate assembly is arranged in L-shaped and is used for emitting light to the light collecting rod; The light emitted by the lamp plate assembly can pass through the light collecting rod and form an L-shaped light spot at the corner of the workpiece to be detected.

[0010] Optionally, the L-shaped groove comprises a first groove section, a second groove section and a third groove section;

[0011] The second groove section is an arc-shaped groove, and the first groove section and the third groove section are respectively connected to opposite ends of the second groove section.

[0012] Optionally, when the center line of the arc-shaped groove is parallel to the horizontal plane, the first groove section and the third groove section are more inclined to the top of the L-shaped shell, and the inclination is greater.

[0013] The L-shaped groove is provided with an inclined opening.

[0014] Optionally, the lamp panel assembly comprises a first lamp panel installed in the first groove section, a second lamp panel installed in the second groove section, and a third lamp panel installed in the third groove section.

[0015] The two ends of the second lamp panel are respectively close to the end portions of the first lamp panel and the third lamp panel.

[0016] Optionally, the L-shaped groove has opposite first and second groove side walls, and the first and second groove side walls are respectively provided with a positioning groove for clamping the spotlight rod.

[0017] Optionally, the L-shaped shell comprises a bottom shell and a top shell, and the top shell is detachably installed on the bottom shell.

[0018] Optionally, the cross section of the spotlight rod is circular, and the opening of the L-shaped groove is further provided with a transparent plate.

[0019] A defect detection device comprises a detection camera and the corner detection light source according to any one of the above.

[0020] Compared with the prior art, the corner detection light source has the following beneficial effects:

[0021] The corner detection light source and the defect detection device have the following beneficial effects:

[0022] The utility model discloses a corner detection light source and defect detection device, through installing lamp panel assembly on L-shaped shell and bending spotlight rod to form L-shaped, thereby making the light of lamp panel assembly can pass through spotlight rod and directly form L-shaped light spot at the corner of the workpiece to be detected, the corner detection light source in this embodiment can directly illuminate the two sides of the corner, without setting two detection light sources and without adjusting the light direction of two detection light sources respectively, under the premise of reducing the cost of device, also make installation, adjustment more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 is a perspective structural schematic view of the corner detection light source provided by the embodiment of the present application;

[0025] Figure 2 is a side view schematic view of the corner detection light source provided by the embodiment of the present application;

[0026] Figure 3 is a top view schematic view of the corner detection light source with the top shell hidden provided by the embodiment of the present application.

[0027] The reference signs are as follows: 1, L-shaped shell; 101, L-shaped groove; 1011, first groove segment; 1012, second groove segment; 1013, third groove segment; 11, bottom shell; 12, top shell; 2, light collecting rod; 3, lamp plate assembly; 31, first lamp plate; 32, second lamp plate; 33, third lamp plate; 4, transparent plate. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0030] Unless otherwise defined, the meanings of the technical terms used in this paper are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0031] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0032] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0033] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0034] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0035] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0036] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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 components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0037] In view of the aforementioned deficiencies in existing corner detection light sources, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a technology that can overcome the deficiencies in the existing technology and make the corner detection light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.

[0038] Please refer to Figures 1 to 3 This utility model provides a corner detection light source, including an L-shaped housing 1, a focusing rod 2 installed in the L-shaped housing 1, and a lamp panel assembly 3 installed in the L-shaped housing 1. The L-shaped housing 1 provides support and positions the focusing rod 2 and the lamp panel assembly 3.

[0039] The L-shaped housing 1 is provided with an L-shaped groove 101. The focusing rod 2 is continuously bent into an L-shape and installed at the opening of the L-shaped groove 101. The lamp plate assembly 3 is arranged to form an L-shape for emitting light to the focusing rod 2. The light emitted by the lamp plate assembly 3 can pass through the focusing rod 2 and form an L-shaped light spot at the corner of the workpiece to be inspected.

[0040] The L-shaped light spot consists of a first line light spot and a second line light spot. During inspection, the first line light spot is projected onto one side of the corner of the workpiece, and the second line light spot is projected onto the other side of the corner. Then, the workpiece or the corner detection light source is moved so that the inspection camera can detect whether there are defects at the corner.

[0041] In this embodiment, the corner detection light source is an integrated structure, which, compared to existing technologies, saves on the need for a separate detection light source, effectively reducing device costs. Furthermore, changing the position of the corner detection light source allows for simultaneous adjustment of the positions of the first and second light spots, making spot position adjustments faster.

[0042] Optionally, such as Figure 3 As shown, the L-shaped groove 101 includes a first groove section 1011, a second groove section 1012, and a third groove section 1013;

[0043] The second groove segment 1012 is an arc-shaped groove, and the first groove segment 1011 and the third groove segment 1013 respectively connect the opposite ends of the second groove segment 1012. Preferably, on the horizontal plane, the projection of the first groove segment 1011 is perpendicular to the projection of the second groove segment 1012.

[0044] Optionally, when the centerline of the arc-shaped groove is parallel to the horizontal plane, the first groove segment 1011 and the third groove segment 1013 deflect towards the top of the L-shaped housing 1 as they move further away from the second groove segment 1012, and the degree of deflection is greater as they move further away from the arc-shaped groove; the opening of the L-shaped groove 101 is inclined.

[0045] It is important to note that when the corner detection light source is tilted upwards, the swaying of the first groove section 1011 and the third groove section 1013 allows the first and second line light spots to be better maintained in a basically horizontal state, thus facilitating the detection of the corner of the workpiece. Of course, it should also be noted that the orientation of the L-shaped housing 1 needs to be changed accordingly for different corner states. For example, when detecting a corner extending horizontally from the housing, the L-shaped housing 1 needs to be switched from a "quasi-lying state" to a "quasi-upright state," equivalent to a 90° rotation. Here, Figure 2 The state in the text is "like lying flat".

[0046] Optionally, the lamp panel assembly 3 includes a first lamp panel 31 installed in the first groove section 1011, a second lamp panel 32 installed in the arc-shaped groove section, and a third lamp panel 33 installed in the third groove section 1013; the two ends of the second lamp panel 32 are respectively close to the ends of the first lamp panel 31 and the third lamp panel 33.

[0047] Optionally, the L-shaped groove 101 has opposing first and second groove sidewalls, each with a positioning groove for clamping the focusing rod 2. The two positioning grooves fit against the top and bottom of the focusing rod 2, fixing the focusing rod 2 in place and preventing errors in the position of the focusing rod 2.

[0048] Optionally, the L-shaped housing 1 includes a bottom housing 11 and a top housing 12, with the top housing 12 detachably mounted on the bottom housing 11. Specifically, as... Figure 2 and Figure 3 As shown, the top cover 12 can be removed first, other components can be installed into the L-shaped groove 101, and then the top cover 12 can be replaced to assemble the corner detection light source. It should be noted that the top cover 12 is installed on the bottom cover 11 to form a complete L-shaped groove 101.

[0049] Optionally, the light-concentrating rod 2 has a circular cross-section, and a transparent plate 4 is also provided to close the opening of the L-shaped groove 101. The transparent plate 4 serves to allow light to pass through, prevent dust, and protect the internal components of the L-shaped groove 101.

[0050] Example 2

[0051] This embodiment discloses a defect detection device, including a detection camera and a corner detection light source as described in Embodiment 1.

[0052] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A corner detection light source, characterized in that, It includes an L-shaped housing (1), a focusing rod (2) installed in the L-shaped housing (1), and a lamp panel assembly (3) installed in the L-shaped housing (1); The L-shaped housing (1) is provided with an L-shaped groove (101). The focusing rod (2) is continuously bent into an L-shape and installed at the opening of the L-shaped groove (101). The lamp panel assembly (3) is arranged in an L-shape to emit light to the focusing rod (2). The light emitted by the lamp panel assembly (3) can pass through the focusing rod (2) and form an L-shaped light spot at the corner of the workpiece to be inspected.

2. The corner detection light source according to claim 1, characterized in that, The L-shaped groove (101) includes a first groove section (1011), a second groove section (1012), and a third groove section (1013); The second groove segment (1012) is an arc-shaped groove, and the first groove segment (1011) and the third groove segment (1013) are respectively connected to the opposite ends of the second groove segment (1012).

3. The corner detection light source according to claim 2, characterized in that, When the centerline of the arc-shaped groove is parallel to the horizontal plane, the first groove segment (1011) and the third groove segment (1013) deflect towards the top of the L-shaped shell (1) the further away from the second groove segment (1012), and the greater the degree of deflection is the further away from the arc-shaped groove. The opening of the L-shaped groove (101) is inclined.

4. The corner detection light source according to claim 2, characterized in that, The lamp panel assembly (3) includes a first lamp panel (31) installed in the first trench section (1011), a second lamp panel (32) installed in the second trench section (1012), and a third lamp panel (33) installed in the third trench section (1013); The two ends of the second lamp panel (32) are close to the ends of the first lamp panel (31) and the third lamp panel (33), respectively.

5. The corner detection light source according to claim 1, characterized in that, The L-shaped groove (101) has a first groove sidewall and a second groove sidewall with opposite sides. Both the first groove sidewall and the second groove sidewall are provided with positioning grooves for clamping the focusing rod (2).

6. The corner detection light source according to claim 1, characterized in that, The L-shaped housing (1) includes a bottom shell (11) and a top shell (12), and the top shell (12) is detachably mounted on the bottom shell (11).

7. The corner detection light source according to claim 1, characterized in that, The light-concentrating rod (2) has a circular cross-section, and a transparent plate (4) is also provided to close the opening of the L-shaped groove (101).

8. A defect detection device, characterized in that, It includes a detection camera and a corner detection light source as described in any one of claims 1 to 7.

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