Visual inspection device and inspection instrument
By tilting the light source assembly and imaging device and using an adjustment mechanism to adjust the light source angle, the problem of difficult identification of glass sheets during the grabbing and placing process is solved, and the camera can clearly identify and standardize glass products.
Patent Information
- Application Number
- CN202422016234.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-08-20
AI Technical Summary
During the production of fluorescent slides, the cut glass sheets are difficult to be effectively identified by the camera during the grabbing and placing process because when the light source shines directly on the glass, the light passes through the glass, making it difficult for the camera to capture and identify the outer contours of the glass.
A tilted light source assembly and imaging device are used, and the tilt angle of the light source assembly is adjusted in combination with an adjustment mechanism so that the illumination path of the light source forms a preset angle with the glass. Reflected light enters the camera, and a focus ring is added to an ordinary high-speed camera to shorten the focal length, ensuring that light enters the camera and forms a clear glass light spot image.
The camera can clearly identify glass products, accurately determine whether the glass products meet the standards, and adapt to glass products of various specifications and angles.
Smart Images
Figure CN223400824U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a visual detection device and a detection instrument. Background Art
[0002] During the fluorescent slide production process, quality control objects need to be placed on the slide. For example, a layer of quality control cells can be cultured on glass. The glass containing these cells then needs to be cut into n×m rectangular pieces. These pieces need to be quickly picked up and placed on a slide, and rapid identification is required during this process. Since the object to be tested is a piece of glass, using a fixed light source to illuminate the object directly will cause the light to pass through the glass, making it difficult for the camera to capture and identify the glass. Utility Model Content
[0003] The purpose of the utility model is to provide a visual detection device and a detection instrument.
[0004] The first aspect of the present invention provides a visual inspection device, comprising: a light source assembly, which includes a shell and a plurality of light sources mounted on the shell, the shell being provided with a cavity, and the plurality of light sources being arranged in a circular array along the four sides of the cavity; an object to be measured is provided above the light source assembly, and the light source assembly is tilted so that the illumination light path of the light source forms a preset angle with the object to be measured; an adjustment mechanism connected to the shell, the adjustment mechanism being used to adjust the tilt angle of the light source assembly; a bracket, the top of which contacts a portion of the shell to carry the light source assembly; an imaging device, which is tilted, at least a portion of the imaging device extending upward from the cavity, the imaging device being used to image the object to be measured; and the imaging device being mounted on the bracket.
[0005] Furthermore, the adjustment mechanism includes: a mounting bracket, which is mounted on the top surface of the workbench; an adjusting button, which is mounted on the mounting bracket, and the adjusting button is configured to be height-adjustable relative to the mounting bracket; a connecting plate, which is connected to the bottom of the shell, and the connecting plate is connected to another part of the shell away from the bracket; a quadrilateral mechanism, the bottom of the quadrilateral mechanism is connected to the connecting plate, and the top of the quadrilateral mechanism is connected to the adjusting button; wherein the adjusting button extends downward or contracts upward, driving the quadrilateral mechanism to move, so that the connecting plate drives the shell to tilt in the up and down directions to change the illumination path of the light source.
[0006] Furthermore, the adjustment buttons are provided as two spaced apart in the horizontal direction; wherein, by adjusting one of the adjustment buttons to extend downward or contract upward, the angle of the quadrilateral mechanism changes, so that the connecting plate drives the shell to tilt in the horizontal direction, thereby changing the illumination path of the light source.
[0007] Furthermore, the quadrilateral mechanism includes: a first vertical link, a second vertical link, a transverse link and a hinge; wherein, the first vertical link and the second vertical link are relatively spaced apart, the transverse link and the hinge are relatively spaced apart, the two ends of the first vertical link are respectively connected to the transverse link and the hinge, and the two ends of the second vertical link are respectively connected to the transverse link and the hinge; the two ends of the connecting plate are connected to the bottom of the shell, and the middle part of the connecting plate is connected to the hinge; the transverse link is connected to the adjusting button.
[0008] Furthermore, the two adjusting buttons are respectively arranged on the outer sides of the first vertical connecting rod and the second vertical connecting rod.
[0009] Furthermore, the adjustment mechanism also includes: a limit block, which is arranged at the bottom of the horizontal connecting rod; a through hole is provided on the horizontal connecting rod, and the limit block is set to be a frustum, the diameter of the frustum gradually increases from top to bottom, and the large end diameter of the frustum is set to be larger than the through hole; the adjusting button is connected to the mounting frame by a thread, and the adjusting button extends longitudinally through the through hole, and the bottom end of the adjusting button is connected to the limit block.
[0010] Furthermore, the connecting plate includes an arc plate and a protrusion, the protrusion is connected to the outer arc surface of the arc plate, and the protrusion is located in the middle part of the arc plate, the two ends of the arc plate are respectively provided with a first hole and a second hole, the bottom of the shell is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are respectively adapted to the first hole and the second hole; the protrusion is provided with a third hole and a fourth hole, the hinge is provided with a third threaded hole and a fourth threaded hole, the third threaded hole and the fourth threaded hole are respectively adapted to the third hole and the fourth hole.
[0011] Furthermore, the visual inspection device also includes: a light source cover, which is installed on the top surface of the workbench, the light source cover is set to be transparent, and the light source cover covers the light source assembly; the bracket is set to be connected and fixed to the bottom surface of the workbench; the inclination angle of the imaging device is set to be adjustable.
[0012] The second aspect of the present invention provides a detection instrument, comprising: the visual detection device described above; and a material carrying mechanism comprising: a frame mounted on the top surface of a workbench; a moving mechanism configured to move horizontally along the frame, the moving mechanism being provided with a suction head gripper for grabbing or placing an object to be detected; and a driving mechanism mounted on the frame, the driving mechanism being configured to drive the moving mechanism to move horizontally along the frame to move the object to be detected grabbed by the suction head gripper to above the visual detection device.
[0013] Furthermore, the detection instrument also includes: a sensing device, which is used to detect when the mobile mechanism moves above the visual detection device, so as to send a detection signal to enable the imaging device to image the object to be detected; the sensing device includes a sensor and a sensing member; wherein, the sensor is installed on the frame, and the sensing member is installed on the mobile mechanism. The mobile mechanism moves horizontally along the frame, and the sensing member approaches the sensor. The sensor detects the signal and sends the detection signal to enable the imaging device to image the object to be detected.
[0014] The above technical solution of the utility model has the following beneficial technical effects:
[0015] 1. In an embodiment of the present invention, the camera can be tilted at a preset angle relative to the object to be measured above, and the light source assembly is also tilted so that the illumination path of the light source forms a preset angle with the object to be measured, thereby preventing the light source from directly hitting the glass product; and the tilt angle of the light source assembly can be adjusted by an adjustment mechanism so that the illumination paths emitted by the camera and the light source form an angle, so that light can be reflected into the camera, and the glass product shows a luminous white spot after being hit by the angled light; the camera can be set to an ordinary high-speed camera with an 8 mm focus ring added to shorten its focal length, so that angled light can enter the camera, and a clear glass light spot image can be obtained, so that the camera can easily capture and identify the glass, and the camera can identify the outer contour of the object to be measured, thereby determining whether the object to be measured meets the preset standards.
[0016] 2. In the embodiment of the present invention, in order to be able to identify glass products of various specifications and with multi-angle changes, the adjustment mechanism is arranged on the outside of the shell. In this way, the multi-angle changes of the shell can be adjusted by turning the adjustment knob on the outside of the shell, so as to change the illumination path of the light source, thereby forming a better illumination angle for the object to be measured above, and the illumination path emitted by the camera and the light source can be at an angle, so that the light can be reflected into the camera, and a clear glass spot image can be obtained, which makes it easy for the camera to capture and identify the glass. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 11 is a schematic structural diagram of a visual inspection device according to a first embodiment of the present invention;
[0018] Figure 2 2 is a schematic structural diagram of a visual inspection device according to a second embodiment of the present invention;
[0019] Figure 3 is a schematic structural diagram of a detection instrument according to a third embodiment of the present utility model;
[0020] Reference numerals:
[0021] 11. Light source assembly; 12. Bracket; 13. Imaging device; 14. Mounting frame; 15. Adjustment button; 16. Connecting plate; 17. First vertical connecting rod; 18. Second vertical connecting rod; 19. Horizontal connecting rod; 20. Hinge; 21. Limit block; 22. Light source cover; 31. Workbench; 32. Frame; 33. Moving mechanism; 34. Suction head gripper; 35. Driving mechanism; 36. Object to be measured; 37. Sensor; 38. Induction component; 131. Bracket. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion about the concepts of the present invention. In this article, terms such as first, second, and third are only used to distinguish one entity from another, and do not require or imply any order or relationship between these entities.
[0023] The first aspect of the present invention provides a visual detection device, such as Figure 1-Figure 2As shown, it includes: a light source assembly 11, an adjustment mechanism, a bracket 12 and an imaging device 13. The light source assembly 11 includes a shell and a plurality of light sources mounted on the shell, the shell is provided with a cavity, and the plurality of light sources are arranged in a circular array along the four sides of the cavity; an object to be measured 36 is provided above the light source assembly 11, and the light source assembly 11 is tilted so that the illumination path of the light source forms a preset angle with the object to be measured 36; an adjustment mechanism is connected to the shell, and the adjustment mechanism is used to adjust the tilt angle of the light source assembly 11; the bracket 12, the top of which contacts a part of the shell to carry the light source assembly 11; the imaging device 13, which is tilted, at least a part of the imaging device 13 extends upward from the cavity, and the imaging device 13 is used to image the object to be measured 36; the imaging device 13 is mounted on the bracket 12. The object to be tested 36 is, for example, a cut glass product with quality control cells on it. The imaging device 13 is, for example, a camera. The camera can be tilted at a preset angle relative to the object to be tested 36 above. At the same time, the light source assembly 11 is also tilted so that the illumination path of the light source forms a preset angle with the object to be tested 36, thereby preventing the light source from directly hitting the glass product. The tilt angle of the light source assembly 11 can be adjusted by an adjustment mechanism so that the illumination path emitted by the camera and the light source forms an angle, so that the light can be reflected into the camera, and the glass product can be viewed at an angle. When the camera is illuminated by a light of 80 degrees, a luminous white spot is displayed; wherein, a bracket 131 may be provided on the camera, which is connected and fixed to the bracket 12 through the bracket 131, and the camera can pass through the cavity from bottom to top, so as to facilitate the camera shooting; the imaging device 13 can be adopted by adding an 8 mm focus ring to an ordinary high-speed camera to shorten the focal length, so that angled light can enter the camera, and then a clear glass spot image can be obtained, so that the camera can easily shoot and identify the glass, and the camera can identify the outer contour of the object to be tested 36, thereby judging whether the object to be tested 36 meets the preset standard.
[0024] In some embodiments, the adjustment mechanism includes: a mounting frame 14, which is mounted on the top surface of the workbench 31; an adjusting button 15, which is mounted on the mounting frame 14, and the adjusting button 15 is configured to be adjustable in height relative to the mounting frame 14; a connecting plate 16, the connecting plate 16 is connected to the bottom of the shell, and the connecting plate 16 is connected to another part of the shell away from the bracket 12; a quadrilateral mechanism, the bottom of the quadrilateral mechanism is connected to the connecting plate 16, and the top of the quadrilateral mechanism is connected to the adjusting button 15; wherein, the adjusting button 15 extends downward or contracts upward, driving the quadrilateral mechanism to move, so that the connecting plate 16 drives the shell to tilt up and down to change the illumination path of the light source. Specifically, the adjusting button 15 may be provided with a screw extending along its axial direction, and the mounting frame 14 may be provided with an internal threaded hole, and the screw is adapted to the internal threaded hole, so that by turning the adjusting button 15, it can extend downward or contract upward, thereby driving the quadrilateral mechanism to move; a part of the shell can be placed on the bracket 12, and the other part of the shell can be suspended outside the bracket 12, and the connecting plate 16 is connected to the bottom of the other part of the shell. The quadrilateral mechanism drives the shell through the connecting plate 16 to form a fulcrum with the part in contact with the bracket 12 to tilt upward or downward, so as to change the illumination path of the light source, form a better illumination angle for the object to be measured 36 above, and make the illumination path emitted by the camera and the light source form an angle, so that the light can be reflected into the camera, and then a clear glass spot image can be obtained, so that the camera can easily shoot and identify the glass.
[0025] In some embodiments, two adjustment knobs 15 are provided, spaced apart horizontally. Adjusting one of the adjustment knobs 15 to extend downward or retract upward causes the angle of the quadrilateral mechanism to change, thereby causing the connecting plate 16 to drive the housing to tilt horizontally, thereby changing the illumination path of the light source. Specifically, to enable identification of glass products of various specifications and varying angles, adjusting one of the adjustment knobs 15 to extend downward or retract upward causes the angle of the quadrilateral mechanism to change, thereby driving the housing to tilt left and right via the connecting plate 16. This allows for multi-angle adjustment of the housing to change the illumination path of the light source. Using the quadrilateral mechanism allows for adjustment over a wider range of angles, thereby enabling adjustment of the housing over a wider range of tilt angles.
[0026] In some embodiments, the quadrilateral mechanism includes: a first vertical link 17, a second vertical link 18, a transverse link 19, and a hinge 20; wherein the first vertical link 17 and the second vertical link 18 are spaced apart from each other, and the transverse link 19 and the hinge 20 are spaced apart from each other; the two ends of the first vertical link 17 are connected to the transverse link 19 and the hinge 20, respectively; the two ends of the second vertical link 18 are connected to the transverse link 19 and the hinge 20, respectively; the two ends of the connecting plate 16 are connected to the bottom of the housing, and the middle portion of the connecting plate 16 is connected to the hinge 20; and the transverse link 19 is connected to the adjustment button 15. Specifically, the quadrilateral mechanism can be configured as a parallelogram mechanism, each connection of the quadrilateral mechanism can be configured as a hinge, the longitudinal length of the first vertical link 17 and the second vertical link 18 can be configured to be greater than the transverse length of the transverse link 19 and the hinge 20, and the quadrilateral mechanism can be disposed outside the housing.
[0027] In some embodiments, the two adjustment knobs 15 are disposed on the outside of the first vertical link 17 and the second vertical link 18. When the two adjustment knobs 15 are rotated to extend downward or retract upward simultaneously, the height change is transmitted to the hinge 20 through the quadrilateral mechanism. The angle of the hinge 20 changes, driving the connecting plate 16 to change the angle between the positive and negative Y-axis directions and the Z-axis in the (X, Y) plane of the three-dimensional coordinate system, that is, driving the housing to tilt upward or downward in the longitudinal direction to change the illumination path of the light source. When one of the adjustment knobs 15 is rotated to extend downward or retract upward, it can drive the horizontal link 19 to change its angle, that is, one end of the horizontal link 19 tilts downward or upward. According to the working principle of the four-bar linkage, the hinge 20 drives the connecting plate 16 to change the angle between the positive and negative X-axis directions and the Z-axis in the (X, Y) plane of the three-dimensional coordinate system, that is, driving the housing to tilt left and right through the connecting plate 16, thus achieving multi-angle adjustment of the housing to change the illumination path of the light source. Among them, if an adjustment button 15 is set on the horizontal connecting rod 19, it is easy to cause the horizontal connecting rod 19 to rotate during rotation, thereby causing instability of the quadrilateral mechanism; therefore, providing two adjustment buttons 15 can prevent the horizontal connecting rod 19 from rotating during rotation.
[0028] In some embodiments, the adjustment mechanism further includes: a stopper 21 disposed at the bottom of the horizontal connecting rod 19; a through hole is provided on the horizontal connecting rod 19, and the stopper 21 is configured as a frustum, the diameter of the frustum gradually increasing from top to bottom, and the diameter of the large end of the frustum is configured to be larger than the through hole; the adjusting button 15 is threadedly connected to the mounting bracket 14, and the adjusting button 15 extends longitudinally through the through hole, and the bottom end of the adjusting button 15 is connected to the stopper 21. Specifically, the horizontal connecting rod 19 may be provided with a through hole, through which the downwardly extending screw of the adjusting button 15 may pass, and the bottom end of the adjusting button 15 is fixedly connected to the stopper 21. The stopper 21 is configured as a frustum, which facilitates the rotation of the adjusting button 15 and reduces frictional resistance during rotation. The cooperation between the adjusting button 15 and the stopper 21 facilitates the change in height of the horizontal connecting rod 19, that is, the elevation or lowering of the horizontal connecting rod 19.
[0029] In some embodiments, the connecting plate 16 includes an arc plate and a protrusion, the protrusion is connected to the outer arc surface of the arc plate, and the protrusion is located in the middle part of the arc plate, the two ends of the arc plate are respectively provided with a first hole and a second hole, the bottom of the shell is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are respectively adapted to the first hole and the second hole; the protrusion is provided with a third hole and a fourth hole, the hinge 20 is provided with a third threaded hole and a fourth threaded hole, the third threaded hole and the fourth threaded hole are respectively adapted to the third hole and the fourth hole. Specifically, the bolt can be screwed into the first threaded hole through the first hole to connect and fix the arc plate to the bottom of the shell; similarly, the bolt can be screwed into the second threaded hole through the second hole to connect and fix the other end of the arc plate to the bottom of the shell; the bolt can be screwed into the third threaded hole through the third hole to connect and fix the protrusion to the hinge 20; therefore, by connecting the protrusion to the outer arc surface of the arc plate, the quadrilateral mechanism can be set on the outside of the shell, so that rotating the adjustment knob 15 on the outside of the shell can adjust the multi-angle changes of the shell to change the lighting path of the light source; in addition, setting the quadrilateral mechanism in the middle part of the connecting plate is more conducive to adjusting the multi-angle changes of the shell to change the lighting path of the light source.
[0030] In some embodiments, the visual inspection device further includes: a light source cover 22 mounted on the top surface of the workbench 31, the light source cover 22 being transparent and covering the light source assembly 11; the bracket 12 being fixedly connected to the bottom surface of the workbench 31; and the tilt angle of the imaging device 13 being adjustable. Specifically, the light source cover 22 is disposed above the light source assembly 11, covering the light source assembly 11 and providing dustproof protection; a bracket 131 may be provided on the camera, which is fixedly connected to the bracket 12 via the bracket. The bracket 131 may be configured to have an adjustable tilt angle relative to the bracket 12, thereby making the tilt angle of the camera adjustable.
[0031] The second aspect of the present invention provides a detection instrument, such as Figure 3 As shown, it includes: the visual inspection device described above; and the material carrying mechanism includes: a frame 32, which is installed on the top surface of the workbench 31; a moving mechanism 33, which is configured to move horizontally along the frame 32, and a suction head gripper 34 is provided on the moving mechanism 33, and the suction head gripper 34 is used to grab or place the object to be tested 36; a driving mechanism 35, which is installed on the frame 32, and the driving mechanism 35 is used to drive the moving mechanism 33 to move horizontally along the frame 32 to move the object to be tested 36 grabbed by the suction head gripper 34 to above the visual inspection device. Specifically, for example, the frame 32 may be provided with a track extending in the horizontal left and right directions, the moving mechanism 33 may be provided with a slider, the slider is slidably connected to the track, the driving mechanism 35 may include a motor and a synchronous pulley assembly, the synchronous pulley assembly may include a driving wheel, a passive wheel and a synchronous belt, the driving wheel and the passive wheel may be installed on the frame 32, the synchronous belt may be sleeved on the driving wheel and the passive wheel, the output shaft of the motor is connected to the driving wheel, and the moving mechanism 33 may be provided with a fixed block, the fixed block is connected to the synchronous belt, so that the rotation of the motor can drive the driving wheel to rotate, and the moving mechanism 33 is driven by the synchronous belt to move along the track, so that the object to be tested 36 grasped by the suction head gripper 34 is moved above the visual inspection device.
[0032] In some embodiments, the detection instrument further includes: a sensing device for detecting when the moving mechanism 33 moves to above the visual detection device, so as to send a detection signal to enable the imaging device 13 to image the object to be detected 36; the sensing device includes a sensor 37 and a sensing element 38; wherein, the sensor 37 is mounted on the frame 32, and the sensing element 38 is mounted on the moving mechanism 33. The moving mechanism 33 moves horizontally along the frame 32, and the sensing element 38 approaches the sensor 37. The sensor 37 detects the signal and sends the detection signal to enable the imaging device 13 to image the object to be detected 36. When the object to be detected 36 needs to be quickly picked up and placed on a slide, the moving mechanism 33 moves the object to be detected 36 to above the visual detection device. At this time, the sensing element 38 approaches the sensor 37. The sensor 37 detects the signal and sends the detection signal, and the camera starts working, that is, the camera takes a picture of the object to be detected 36. Since the object to be tested 36 is a glass product, if a fixed light source is used to directly illuminate the object to be tested 36, when the light source is directly hitting it, the light will pass through the glass, making it difficult for the camera to capture and identify the glass. After the camera forms an image, it is difficult to distinguish the image of the object to be tested 36, and the camera imaging is likely to cause the recognition time to be too long. Therefore, the camera can be tilted at a certain preset angle relative to the object to be tested 36 above, and the light source assembly 11 is also tilted so that the illumination path of the light source forms a preset angle with the object to be tested 36, which can prevent the light source from directly hitting the glass product; and the tilt angle of the light source assembly 11 can be adjusted through the adjustment mechanism so that the illumination path emitted by the camera and the light source forms an angle, so that the light can be reflected into the camera, and the glass product can be clearly seen. When angled light is applied, a luminous white spot is displayed; wherein, a bracket may be provided on the camera, which is connected and fixed to the bracket 12 through the bracket, and the camera can pass through the cavity from bottom to top to facilitate the camera shooting; the imaging device 13 can be adopted by adding an 8 mm focus ring to an ordinary high-speed camera to shorten the focal length, so that angled light can enter the camera, and then a clear glass spot image can be obtained, so that the camera can easily shoot and identify the glass. The camera can identify the outer contour of the object to be tested 36, thereby judging whether the object to be tested 36 meets the preset standards.
[0033] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.
Claims
1. A visual inspection device, characterized in that: include: A light source assembly includes a housing and a plurality of light sources mounted on the housing, wherein the housing defines a cavity and the plurality of light sources are arranged in a circular array around the cavity; an object to be measured is disposed above the light source assembly, and the light source assembly is tilted so that the illumination path of the light source forms a predetermined angle with the object to be measured; an adjusting mechanism connected to the housing, the adjusting mechanism being used to adjust the tilt angle of the light source assembly; a bracket, a top of which contacts a portion of the housing to carry the light source assembly; The imaging device is tilted and at least a portion of the imaging device extends upward from the cavity. The imaging device is used to image the object to be measured. The imaging device is installed on the bracket.
2. The visual inspection device according to claim 1, characterized in that The regulating mechanism comprises: a mounting frame mounted on the top surface of the workbench; an adjusting button mounted on the mounting frame, wherein the adjusting button is configured to be height-adjustable relative to the mounting frame; a connecting plate connected to the bottom of the housing and to another portion of the housing away from the bracket; A quadrilateral mechanism, the bottom of which is connected to the connecting plate, and the top of which is connected to the adjusting button; wherein the adjusting button extends downward or contracts upward, driving the quadrilateral mechanism to move, so that the connecting plate drives the shell to tilt in the up and down directions, thereby changing the illumination path of the light source.
3. The visual inspection device according to claim 2, characterized in that The adjusting buttons are provided as two buttons spaced apart in the horizontal direction; wherein, By adjusting one of the adjusting buttons to extend downward or contract upward, the angle of the quadrilateral mechanism changes, so that the connecting plate drives the housing to tilt in the horizontal direction, thereby changing the illumination path of the light source.
4. The visual inspection device according to claim 3, characterized in that: The quadrilateral mechanism comprises: A first vertical link, a second vertical link, a transverse link and a hinge; wherein, The first vertical connecting rod and the second vertical connecting rod are relatively spaced apart, the transverse connecting rod and the hinge are relatively spaced apart, the two ends of the first vertical connecting rod are respectively connected to the transverse connecting rod and the hinge, and the two ends of the second vertical connecting rod are respectively connected to the transverse connecting rod and the hinge; The two ends of the connecting plate are connected to the bottom of the shell, and the middle part of the connecting plate is connected to the hinge; The horizontal connecting rod is connected to the adjusting button.
5. The visual inspection device according to claim 4, characterized in that: The two adjusting buttons are respectively arranged on the outer sides of the first vertical connecting rod and the second vertical connecting rod.
6. The visual inspection device according to claim 4, characterized in that: The regulating mechanism further comprises: A limit block is provided at the bottom of the horizontal connecting rod; a through hole is provided on the horizontal connecting rod, and the limit block is configured as a frustum, the diameter of the frustum gradually increases from top to bottom, and the diameter of the large end of the frustum is configured to be larger than the through hole; The adjusting button is connected to the mounting bracket via a thread, and the adjusting button extends longitudinally through the through hole, and the bottom end of the adjusting button is connected to the limiting block.
7. The visual inspection device according to claim 4, characterized in that: The connecting plate includes an arc plate and a protrusion, the protrusion is connected to the outer arc surface of the arc plate, and the protrusion is located in the middle part of the arc plate, the two ends of the arc plate are respectively provided with a first hole and a second hole, the bottom of the shell is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are respectively adapted to the first hole and the second hole; the protrusion is provided with a third hole and a fourth hole, the hinge is provided with a third threaded hole and a fourth threaded hole, the third threaded hole and the fourth threaded hole are respectively adapted to the third hole and the fourth hole.
8. The visual inspection device according to any one of claims 1 to 7, characterized in that: Also includes: A light source cover is installed on the top surface of the workbench, the light source cover is transparent, and the light source cover covers the light source assembly; The bracket is configured to be connected and fixed to the bottom surface of the workbench; The tilt angle of the imaging device is adjustable.
9. A detection instrument, characterized in that: include: The visual inspection device according to any one of claims 1 to 8; as well as, The material carrying mechanism includes: a frame, which is installed on the top surface of the workbench; A moving mechanism is configured to move horizontally along the frame, and a suction head gripper is provided on the moving mechanism, which is used to grab or place the object to be tested; a driving mechanism is installed on the frame, and the driving mechanism is used to drive the moving mechanism to move horizontally along the frame to move the object to be tested grabbed by the suction head gripper to above the visual inspection device.
10. The detection instrument according to claim 9, characterized in that: Also includes: a sensing device for detecting when the moving mechanism moves above the visual detection device, and sending a detection signal to enable the imaging device to image the object to be detected; The sensing device includes a sensor and a sensing member; wherein, the sensor is installed on a frame, and the sensing member is installed on the moving mechanism. The moving mechanism moves horizontally along the frame, and the sensing member approaches the sensor. The sensor detects a signal and sends a detection signal, so that the imaging device images the object to be measured.