Visual inspection device

Abstract

The utility model relates to the technical field of machine vision detection, and discloses a vision detection device, which comprises a shell; the annular light source is provided with a detection through hole; the annular light source is mounted in the shell; the prism assembly is rotatably installed in the shell and located on one side of the bottom of the annular light source; the prism assembly comprises a plurality of triangular reflecting prisms which are arranged around the center line of the detection through hole in a circumferential array mode, and the rotation angle of the prism assembly is adjustable. Insertion holes for insertion of workpieces are formed among all the triangular reflecting prisms, and the triangular reflecting prisms are used for reflecting peripheral images of the workpieces to the detection through holes. The visual detection device provided by the utility model can meet the detection requirements of different columnar workpieces.

Description

Technical Field

[0001] This utility model relates to the field of machine vision inspection technology, and in particular to a vision inspection device. Background Technology

[0002] Machine vision is a technology that uses machines to replace human eyes for measurement and judgment. It is a rapidly developing branch of artificial intelligence.

[0003] When inspecting cylindrical workpieces (such as drill bits), it is necessary to take pictures of multiple sides of the workpiece to inspect its overall circumference and determine whether it is qualified. In this method, the workpiece is illuminated by a ring light source, and four inspection cameras take pictures of its surroundings. However, the cameras are fixed in position and cannot be rotated relative to the workpiece to adjust the image angle, making it difficult to meet the inspection needs of different cylindrical workpieces.

[0004] Therefore, it is necessary to design a vision inspection device to meet the inspection needs of different cylindrical workpieces.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides a visual inspection device to meet the inspection needs of different columnar workpieces.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A visual inspection device, comprising:

[0009] case;

[0010] A ring-shaped light source has a detection through-hole; the ring-shaped light source is installed in the housing.

[0011] A prism assembly is rotatably mounted in the housing and located on the bottom side of the annular light source; the prism assembly includes a plurality of triangular reflective prisms arranged in a circumferential array around the center line of the detection through hole, and the prism assembly can adjust its rotation angle around the center line of the detection through hole;

[0012] An insertion hole is formed between all the triangular reflecting prisms for inserting a workpiece, and the triangular reflecting prisms are used to reflect the peripheral image of the workpiece toward the detection through hole.

[0013] Optionally, the prism assembly further includes a support ring, and each of the triangular reflecting prisms is fixedly connected to the support ring;

[0014] The inner hole of the support ring forms part of the insertion hole.

[0015] Optionally, the housing has a cylindrical portion and a bottom support plate portion;

[0016] The supporting ring can slide against the bottom supporting plate, and the outer circumferential surface of the supporting ring can slide against the inner wall surface of the cylindrical part;

[0017] The bottom support plate is provided with a through hole corresponding to the inner hole of the support ring, and the workpiece can pass through the through hole into the inner hole of the support ring.

[0018] Optionally, the bottom support plate is provided with an adjustable arc-shaped through groove;

[0019] The supporting ring is connected to an adjusting post for passing through the adjusting arc-shaped through groove; the adjusting post can slide along the adjusting arc-shaped through groove to adjust the rotation angle of the supporting ring.

[0020] Optionally, the supporting ring is provided with a mounting groove, and the triangular reflecting prism is detachably mounted in the mounting groove.

[0021] Optionally, an annular groove perpendicular to the detection through hole is formed inside the housing;

[0022] The prism assembly is rotatably mounted in the annular groove.

[0023] Optionally, the side wall of the housing is provided with a fixing threaded hole, and a threaded fastener for pressing the prism assembly is installed in the fixing threaded hole.

[0024] Optionally, the inner wall of the housing is provided with a sliding mounting groove, and the annular light source is slidably connected to the sliding mounting groove;

[0025] The sliding mounting groove is parallel to the center line of the detection through hole, and the annular light source can slide along the sliding mounting groove.

[0026] Optionally, the prism assembly includes four of the triangular reflecting prisms.

[0027] Optionally, the visual inspection device further includes a camera located directly above the ring light source, with the camera lens facing the inspection aperture.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The visual inspection device provided by this utility model inserts a workpiece into an insertion hole, and then multiple triangular reflecting prisms reflect the image of the workpiece's outer periphery toward the inspection through hole, thereby facilitating the camera to take pictures and inspect the workpiece. When inspecting different workpieces, the prism assembly can be rotated to adjust the relative position of the triangular reflecting prism and the workpiece, adapting to the inspection of different columnar workpieces, so that the image of a specific position of different columnar workpieces can be better reflected to the inspection through hole by the triangular reflecting prism, thus improving the applicability of the visual inspection device.

[0030] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a bottom view schematic diagram of the visual inspection device provided in this embodiment of the utility model;

[0033] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure of the visual inspection device;

[0034] Figure 3 This is a top view schematic diagram of the visual inspection device provided in this embodiment of the utility model;

[0035] Figure 4 This is a three-dimensional structural schematic diagram of the visual inspection device provided in this embodiment of the utility model;

[0036] Figure 5 This is a three-dimensional structural diagram of the visual inspection device provided in an embodiment of the present invention from another viewpoint.

[0037] Reference numerals: 1. Housing; 101. Sliding mounting groove; 11. Cylindrical part; 12. Bottom support plate part; 121. Inner hole; 122. Through hole; 123. Adjustment arc-shaped through groove; 2. Ring light source; 201. Detection through hole; 3. Prism assembly; 31. Triangular reflecting prism; 32. Support ring; 321. Mounting groove; 4. Insertion hole. Detailed Implementation

[0038] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0039] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] In view of the aforementioned deficiencies in existing visual inspection devices, 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 visual inspection device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.

[0048] Please refer to Figures 1 to 5 This utility model provides a visual inspection device, including a housing 1, a ring light source 2, and a prism assembly 3.

[0049] The housing 1 provides support, and the ring light source 2 has a detection through-hole 201, and the ring light source 2 is installed in the housing 1. The prism assembly 3 is rotatably installed in the housing 1 and located on the bottom side of the ring light source 2; the prism assembly 3 includes a plurality of triangular reflecting prisms 31 arranged in a circumferential array around the center line of the detection through-hole 201, and the prism assembly 3 can adjust the rotation angle around the center line of the detection through-hole 201; in this embodiment, the prism assembly 3 can be rotated to adjust the position of the triangular reflecting prisms 31.

[0050] An insertion hole 4 is formed between all the triangular reflecting prisms 31 for inserting a workpiece, and the triangular reflecting prisms 31 are used to reflect the outer peripheral image of the workpiece toward the detection through hole 201.

[0051] The visual inspection device in this embodiment operates as follows: the workpiece is inserted into the insertion hole, and then multiple triangular reflecting prisms 31 reflect the outer peripheral image of the workpiece toward the detection through hole 201. The camera can then take pictures of the workpiece through the detection through hole 201.

[0052] When inspecting different workpieces, the prism assembly 3 can be rotated to adjust the relative position of the triangular reflecting prism 31 and the workpiece to inspect different cylindrical workpieces. Specifically, the triangular reflecting prism 31 at different positions allows the image of a specific position on a different cylindrical workpiece to be better reflected by the triangular reflecting prism 31 to the detection through-hole 201, thereby making it easier for the camera to detect the specific position of the cylindrical workpiece and improving the inspection accuracy. This expands the applicability of the vision inspection device.

[0053] Optionally, the prism assembly 3 further includes a support ring 32, and each triangular reflecting prism 31 is fixedly connected to the support ring 32; the inner hole 121 of the support ring 32 forms part of the insertion hole 4. In this embodiment, the support ring 32 can be rotated, thereby simultaneously adjusting the positions of multiple triangular reflecting prisms 31.

[0054] Optionally, the housing 1 has a cylindrical portion 11 and a bottom support plate portion 12; the support ring 32 is slidably fitted with the bottom support plate portion 12, and the outer peripheral surface of the support ring 32 is slidably fitted with the inner wall surface of the cylindrical portion 11; the bottom support plate portion 12 is provided with a through hole 122 corresponding to the inner hole 121 of the support ring 32, and the workpiece can pass through the through hole 122 into the inner hole 121 of the support ring 32. In this embodiment, the bottom support plate portion 12 cooperates with the cylindrical portion 11 to limit the support ring 32, so that the support ring 32 can only rotate along the center line of the detection through hole 201, thereby enabling the triangular reflecting prism 31 to always reflect the image of the outer periphery of the workpiece toward the detection through hole 201.

[0055] Optionally, the bottom support plate 12 is provided with an adjusting arc-shaped through groove 123; the support ring 32 is connected to an adjusting column for passing through the adjusting arc-shaped through groove 123; the adjusting column can slide along the adjusting arc-shaped through groove 123 to adjust the rotation angle of the support ring 32. In this embodiment, the inspector can drive the adjusting column to slide along the adjusting arc-shaped through groove 123 to adjust the rotation angle of the support ring 32, thereby ultimately achieving the purpose of adjusting the position of the triangular reflecting prism 31.

[0056] Optionally, the support ring 32 is provided with a mounting groove 321, and the triangular reflecting prism 31 can be detachably installed in the mounting groove 321 for easy replacement of the damaged triangular reflecting prism 31.

[0057] In another specific embodiment, an annular groove perpendicular to the detection through-hole 201 is formed inside the housing 1; the prism assembly 3 is rotatably mounted in the annular groove. A fixing threaded hole is provided on the side wall of the housing 1, and a threaded fastener for clamping the prism assembly 3 is installed in the fixing threaded hole. At this time, the threaded fastener can be loosened, the prism assembly 3 can be rotated to a suitable angle, and then the threaded fastener can be tightened to achieve mutual fixation between the prism assembly 3 and the housing 1. It should also be noted that the prism assembly 3 also includes a triangular reflecting prism 31, a supporting ring 32, and other necessary components.

[0058] Optionally, the inner wall of the housing 1 is provided with a sliding mounting groove 101, and the ring light source 2 is slidably connected to the sliding mounting groove 101; the sliding mounting groove 101 is parallel to the center line of the detection through hole 201, and the ring light source 2 can slide along the sliding mounting groove 101. In this embodiment, the height of the ring light source 2 can be adjusted, thereby adjusting the light output effect of the ring light source 2, which can provide different lighting effects for different columnar workpieces, further improving the applicability of the visual inspection device.

[0059] Optionally, the prism assembly 3 includes four triangular reflecting prisms 31.

[0060] Optionally, the visual inspection device also includes a camera located directly above the ring light source 2, with the camera lens facing the inspection through-hole 201.

[0061] 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 vision inspection apparatus, characterized by, The utility model relates to a kind of workpiece detection device, including: Shell (1); Annular light source (2) with detection through hole (201);The annular light source (2) is installed in the shell (1); Prism assembly (3) is rotatably installed in the shell (1) and is located at the bottom side of the annular light source (2);The prism assembly (3) includes several triangular reflective prisms (31) arranged in the circumferential array around the center line of the detection through hole (201), and the prism assembly (3) can adjust the rotation angle around the center line of the detection through hole (201); Between all the triangular reflective prisms (31), form the insertion hole (4) that can be inserted into workpiece, and the triangular reflective prisms (31) are used to reflect the peripheral image of the workpiece to the detection through hole (201).

2. The vision inspection apparatus of claim 1, wherein The prism assembly (3) further includes support ring (32), each triangular reflective prism (31) is fixedly connected with the support ring (32); The inner hole (121) of the support ring (32) constitutes a part of the insertion hole (4).

3. The vision inspection apparatus of claim 2, wherein The shell (1) has cylindrical portion (11) and bottom support plate portion (12); The support ring (32) is slidably attached with the bottom support plate portion (12), and the peripheral surface of the support ring (32) is slidably attached with the inner wall surface of the cylindrical portion (11); The bottom support plate portion (12) is provided with through hole (122) corresponding to the inner hole (121) of the support ring (32), and the workpiece can be inserted into the inner hole (121) of the support ring (32) through the through hole (122).

4. The vision inspection apparatus of claim 3, wherein The bottom support plate portion (12) is provided with adjusting arc-shaped through slot (123); The support ring (32) is connected with adjusting column for passing through the adjusting arc-shaped through slot (123);The adjusting column can slide along the adjusting arc-shaped through slot (123) to adjust the rotation angle of the support ring (32).

5. The vision inspection apparatus of claim 2, wherein The support ring (32) is provided with mounting groove (321), and the triangular reflective prism (31) can be detachably mounted in the mounting groove (321).

6. The vision inspection apparatus of claim 1, wherein The shell (1) is formed with annular groove perpendicular to the detection through hole (201) inside the shell (1); The prism assembly (3) is rotatably installed in the annular groove.

7. The vision inspection apparatus of claim 6, wherein The side wall of the shell (1) is provided with fixed threaded hole, and the fixed threaded hole is mounted with threaded fastener for pressing the prism assembly (3).

8. The vision inspection apparatus of claim 1, wherein The inner side wall of the shell (1) is provided with sliding installation groove (101), and the annular light source (2) is slidably connected with the sliding installation groove (101); The sliding installation groove (101) is parallel to the center line of the detection through hole (201), and the annular light source (2) can slide along the sliding installation groove (101).

9. The vision inspection apparatus of claim 1, wherein The prism assembly (3) includes four triangular reflective prisms (31).

10. The vision inspection apparatus of claim 1, wherein It further includes a camera, and the camera is located directly above the annular light source (2), and the lens of the camera is directly opposite the detection through hole (201).

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