PCB visual inspection device
Through the design of the lifting component and the angle adjustment component, the problem of fixed position of the image collector in the existing PCB visual inspection device is solved, multi-angle observation is achieved, and the reliability and adaptability of the inspection are improved.
Patent Information
- Application Number
- CN202422529401.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-19
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-19
AI Technical Summary
In existing PCB visual inspection devices, the positions of the image collector and the circuit board body cannot be adjusted in directions other than the Z axis, resulting in reduced observation practicality. Only top-down observation is possible, and multi-angle side observation cannot be achieved, which reduces the reliability of observation.
A PCB visual inspection device was designed. By combining a lifting assembly, a clamping part, and an angle adjustment assembly, the image collector can be adjusted along the Z, X, and Y axes. The angle of the image collector can be adjusted by the angle adjustment assembly, allowing multi-angle observation.
It realizes all-round visual inspection of all parts of the circuit board body, improves the reliability and accuracy of inspection, and adapts to the inspection needs of circuit boards of different sizes.
Smart Images
Figure CN223320319U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of visual inspection, in particular to a PCB visual inspection device. Background Art
[0002] Visual inspection uses machine vision technology to inspect the appearance of circuit boards. High-definition cameras capture images of the boards and use image processing algorithms to inspect components, solder joints, and traces. Visual inspection is crucial for PCB inspection because it improves accuracy and efficiency, reduces the subjective errors and costs associated with manual inspection, and ensures the quality and reliability of the boards.
[0003] Existing PCB visual inspection devices mostly fix one of the image collector or the circuit board body, and the other can be adjusted in height to achieve observation. The positions of the image collector and the circuit board body cannot be adjusted in other directions except the Z axis, which reduces the practicality of observation needs. In addition, the image collector is mostly set perpendicular to the circuit board body, and can only be observed from above, and multi-angle observation from the side cannot be achieved, which reduces the reliability of observation. Utility Model Content
[0004] 1. Technical Problems Solved
[0005] The technical problem to be solved by the present invention is that the positions of the image collector and the circuit board body cannot be adjusted in directions other than the Z axis, which reduces the practicality of observation. They can only be observed from above, and multi-angle observation from the side cannot be achieved, which reduces the reliability of observation.
[0006] 2. Technical Solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a PCB visual inspection device, including a circuit board body, a detection platform and an image collector, the two sides of the middle part of the detection platform are respectively rotatably connected with lifting rods, and a lifting seat is provided on the lifting rods relative to the lifting rods, and a lifting component that can drive the lifting seat to move up and down along the lifting rods is connected to the detection platform, a sliding sleeve is slidably connected to the lifting seat, and a suspension rod is connected to the sliding sleeve, and the other end of the suspension rod is hingedly provided with a hinge rod and an angle adjustment component that can drive the hinge rod to change the hinge angle, the image collector is connected to the free end of the hinge rod, and the detection platform is slidably connected to a mounting seat in the length direction of the lifting seat vertically, and clamping members are respectively connected on both sides of the mounting seat, and the mounting seat positions the circuit board body through the clamping members.
[0008] Furthermore, the lifting assembly includes a first motor connected to the bottom end of the detection platform, a driving wheel is connected to the power output end of the first motor, the driving wheel is connected to a driven wheel through a synchronous belt, a lifting rod is connected inside the driven wheel, the lifting rod rotates through the detection platform and cooperates with the lifting seat through a thread at the other end, by starting the first motor, the first motor drives the driving wheel, the driving wheel drives the driven wheel through the synchronous belt to drive the lifting rod, and the lifting rod drives the lifting seat up and down by cooperating with the thread of the lifting seat.
[0009] Furthermore, the clamping member includes a fixed plate connected to both sides of the mounting seat, a plurality of sliding holes are connected on the fixed plate, a sliding rod is connected to the sliding holes for sliding through, and a clamping plate is commonly connected to the other end of the sliding rod, and a spring is connected between the clamping plate and the fixed plate, and the spring is sleeved on the outside of the sliding rod. Under the action of the spring, the clamping plate clamps and limits the two sides of the circuit board body.
[0010] Furthermore, the detection platform is connected with a plurality of slide grooves, and the mounting seat is respectively connected with sliders relative to the slide grooves, and the sliders are slidably matched with the slide grooves. The detection platform is connected with a second motor on the end wall of the middle slide groove, and the power output end of the second motor is rotatably connected with a screw rod in the middle slide groove. The screw rod passes through the slider through a thread. By starting the second motor, the second motor drives the screw rod, and the screw rod drives the mounting seat to move along the length direction of the slide groove by cooperating with the thread of the middle slider, so that the position of the mounting seat on the Y-axis can be adjusted.
[0011] Furthermore, the angle adjustment assembly includes a third motor connected to the boom, a worm is connected to the power output end of the third motor, a drive shaft is connected to the end of the hinge away from the image collector, the drive shaft passes through the boom and is connected to a worm gear at the end, the worm gear cooperates with the worm, and by starting the third motor, the third motor drives the worm, the worm drives the worm wheel, and the worm gear drives the hinge to rotate through the drive shaft to achieve the adjustment of the hinge angle between the hinge and the boom, so that the status of the welding point can be observed at more angles.
[0012] Furthermore, an avoidance groove is connected to the suspension rod, and the avoidance groove cooperates with the hinge rod to avoid interference with the hinge angle adjustment of the hinge rod.
[0013] Furthermore, the image collector is evenly connected to light sources around the circumference.
[0014] 3. Beneficial Effects
[0015] The advantages of this utility model compared with the prior art are:
[0016] Through the sliding of the mounting seat and the detection table in the length direction of the vertical lifting seat and the sliding cooperation of the sliding sleeve along the length direction of the lifting seat, the image collector can realize the top-down visual inspection of various parts of the circuit board body; the circuit board body can be limited and clamped by the clamping part to avoid relative movement between the test table and the test table, and it is also convenient to center the circuit board body for inspection; the lifting seat can be driven by the lifting assembly to drive the image collector up and down along the axis of the lifting rod, which is convenient for global inspection of circuit boards of different sizes; the setting of the angle adjustment assembly is convenient to drive the hinge rod to drive the image collector to rotate with the hinge of the suspension rod and the hinge rod as the axis and lock the rotation angle, which is convenient for more three-dimensional visual inspection of each solder joint on the circuit board body and improves the inspection effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a PCB visual inspection device of the present utility model.
[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of a PCB visual inspection device of the present invention.
[0019] Figure 3 This is a schematic side sectional view of a PCB visual inspection device of the present invention.
[0020] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of A in the figure.
[0021] As shown in the figure: 1. Circuit board body, 2. Testing table, 3. Image collector, 4. Lifting rod, 5. Lifting seat, 6. Slide, 7. Suspension rod, 8. Mounting seat, 9. First motor, 10. Driving wheel, 11. Driven wheel, 12. Fixed plate, 13. Slide rod, 14. Clamping plate, 15. Spring, 16. Slide groove, 17. Slider, 18. Second motor, 19. Screw, 20. Third motor, 21. Worm, 22. Worm gear, 23. Hinge rod, 24. Avoidance groove, 25. Light source. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0023] Example 1
[0024] Combined with attachment Figure 1 、 Figure 2 and Figure 3 , a PCB visual inspection device includes a circuit board body 1, a test platform 2 and an image collector 3, the two sides of the middle of the test platform 2 are respectively connected to the lifting rod 4, and a lifting seat 5 is provided on the lifting rod 4. The test platform 2 is connected to a lifting component that can drive the lifting seat 5 to move up and down along the lifting rod 4, and the lifting component includes a first motor 9 connected to the bottom end of the test platform 2, and the power output end of the first motor 9 is connected to a driving wheel 10, and the driving wheel 10 is connected to a driven wheel 11 through a synchronous belt. The driven wheel 11 is connected to the lifting rod 4, and the lifting rod 4 rotates through the test platform 2 and is moved to the other side. The end is fitted with the lifting seat 5 through a threaded connection; a sliding sleeve 6 is slidably connected to the lifting seat 5, and a suspension rod 7 is connected to the sliding sleeve 6. The detection platform 2 is slidably connected to a mounting seat 8 in the length direction of the vertical lifting seat 5. A plurality of slide grooves 16 are connected to the detection platform 2, and the mounting seat 8 is respectively connected to a slider 17 relative to the slide groove 16. The slider 17 slides with the slide groove 16. The detection platform 2 is connected to a second motor 18 on the end wall of the middle slide groove 16. The power output end of the second motor 18 is rotatably connected to a screw rod 19 in the middle slide groove 16. The screw rod 19 is provided by threading through the slider 17;
[0025] By setting the lifting assembly in the above structure, the image collector can be adjusted in the Z-axis direction, and the sliding cooperation between the lifting seat and the sliding sleeve can realize the adjustment of the image collector on the X-axis. The sliding cooperation between the mounting seat and the detection table in the length direction of the vertical lifting seat can realize the position adjustment of the circuit board body on the Y-axis, thereby realizing the image collector to observe and photograph the welding conditions of any solder joints on the circuit board body from a bird's-eye view.
[0026] Combined with attachment Figure 2 , the mounting seat 8 is respectively connected with a clamping piece on both sides, and the mounting seat 8 positions the circuit board body 1 through the clamping piece. The clamping piece includes a fixing plate 12 connected to both sides of the mounting seat 8, and a plurality of sliding holes are connected on the fixing plate 12. The sliding holes slide through and are connected with a sliding rod 13. The other end of the sliding rod 13 is commonly connected with a clamping plate 14. A spring 15 is connected between the clamping plate 14 and the fixing plate 12, and the spring 15 is sleeved on the outside of the sliding rod 13.
[0027] The arrangement of the clamping member can facilitate positioning of the circuit board body, thereby preventing the circuit board body from moving relative to the inspection platform during visual inspection.
[0028] Example 2
[0029] On the basis of embodiment 1, combined with the attached Figure 4The other end of the boom 7 is hinged with a hinge 23 and an angle adjustment component that can drive the hinge 23 to change the hinge angle. The boom 7 is connected with an avoidance groove 24, and the avoidance groove 24 cooperates with the hinge 23. The angle adjustment component includes a third motor 20 connected to the boom 7, and the power output end of the third motor 20 is connected with a worm 21. The hinge 23 is connected with a drive shaft at one end away from the image collector 3. The drive shaft passes through the boom 7 and is connected with a worm gear 22 at the end. The worm gear 22 cooperates with the worm 21. The image collector 3 is connected to the free end of the hinge 23, and the image collector 3 is evenly connected with a light source 25 in the circumferential direction.
[0030] The angle of the image collector can be adjusted by setting the angle adjustment component, so that the solder joints on the circuit board body can be observed not only from a top view but also from the side, thereby improving the accuracy of visual inspection.
[0031] The specific usage is as follows:
[0032] First, the circuit board body 1 can be clamped by the clamping member. The clamping plate 14 clamps and limits the two sides of the circuit board body 1 under the action of the spring 15 to prevent relative movement between the circuit board body 1 and the test table 2. At the same time, it is also convenient to center the circuit board body 1 for testing.
[0033] By sliding the mounting base 8 and the inspection table 2 in the length direction of the vertical lifting base 5 and the sliding cooperation of the sliding sleeve 6 along the length direction of the lifting base 5, the image collector 3 can realize the top-view visual inspection of various parts of the circuit board body 1. By starting the second motor 18, the second motor 18 drives the screw rod 19, and the screw rod 19 drives the mounting base 8 to move along the length direction of the slide groove 16 through the thread cooperation with the middle slider 17, so that the position of the mounting base 8 on the Y axis can be adjusted, and the sliding of the sliding sleeve 6 along the length direction of the lifting base 5 can realize the adjustment of the image collector 3 on the X axis. Through the cooperation between the two, the image collector 3 can realize the top-view inspection of various parts of the circuit board body 1;
[0034] The lifting assembly can drive the lifting seat 5 to drive the image collector 3 to move up and down along the axis of the lifting rod 4. By starting the first motor 9, the first motor 9 drives the driving wheel 10, and the driving wheel 10 drives the driven wheel 11 to drive the lifting rod 4 through the synchronous belt. The lifting rod 4 drives the lifting seat 5 up and down by cooperating with the thread of the lifting seat 5, which facilitates the global detection of circuit board bodies 1 of different sizes.
[0035] A detection light source can be installed to make the circuits on the circuit board body more clearly visible, thereby improving the convenience of observation; the setting of the angle adjustment component facilitates the driving of the hinge 23 to drive the image collector 3 to rotate with the hinge of the boom 7 and the hinge 23 as the axis and lock the rotation angle, and by starting the third motor 20, the third motor 20 drives the worm 21, the worm 21 drives the worm gear 22, and the worm gear 22 drives the hinge 23 to rotate through the drive shaft to achieve the adjustment of the hinge angle between the hinge 23 and the boom 7, which can achieve the observation of the status of the solder joint at more angles and improve the detection effect. The avoidance groove 24 is arranged in conjunction with the hinge 23 to avoid interference with the adjustment of the hinge angle of the hinge 23.
[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
[0038] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A PCB visual inspection device, comprising a circuit board body (1), a detection platform (2) and an image collector (3), characterized in that: The detection platform (2) is provided with lifting rods (4) on both sides of the middle part thereof, and a lifting seat (5) is provided on the lifting rod (4). The detection platform (2) is provided with a lifting assembly capable of driving the lifting seat (5) to move up and down along the lifting rod (4). The lifting seat (5) is provided with a sliding sleeve (6) which is slidably connected. The sliding sleeve (6) is provided with a suspension rod (7). The other end of the suspension rod (7) is hinged with a hinge rod (23) and an angle adjustment assembly capable of driving the hinge rod (23) to change the hinge angle. The image collector (3) is connected to the free end of the hinge rod (23). The detection platform (2) is provided with a mounting seat (8) which is slidably connected to the vertical lifting seat (5) in the length direction. Clamping members are provided on both sides of the mounting seat (8). The mounting seat (8) positions the circuit board body (1) through the clamping members.
2. A PCB visual inspection device according to claim 1, characterized in that: The lifting assembly comprises a first motor (9) connected to the bottom end of the detection platform (2); a driving wheel (10) is connected to the power output end of the first motor (9); the driving wheel (10) is connected to a driven wheel (11) via a synchronous belt; a lifting rod (4) is connected to the driven wheel (11); the lifting rod (4) rotates through the detection platform (2) and is threadedly engaged with the lifting seat (5) at the other end.
3. The PCB visual inspection device according to claim 1, characterized in that: The clamping member includes a fixed plate (12) connected to both sides of the mounting seat (8), a plurality of sliding holes are connected on the fixed plate (12), a sliding rod (13) is slidably passed through the sliding holes, and the other end of the sliding rod (13) is commonly connected to a clamping plate (14), a spring (15) is connected between the clamping plate (14) and the fixed plate (12), and the spring (15) is sleeved on the outside of the sliding rod (13).
4. The PCB visual inspection device according to claim 1, characterized in that: The detection platform (2) is connected with a plurality of slide grooves (16), and the mounting seat (8) is respectively connected with sliders (17) relative to the slide grooves (16). The sliders (17) are slidably matched with the slide grooves (16). The detection platform (2) is connected with a second motor (18) on the end wall of the middle slide groove (16). The power output end of the second motor (18) is rotatably connected with a screw rod (19) in the middle slide groove (16), and the screw rod (19) is set by passing through the slider (17) through a thread.
5. The PCB visual inspection device according to claim 1, characterized in that: The angle adjustment assembly comprises a third motor (20) connected to the suspension rod (7); a worm (21) is connected to the power output end of the third motor (20); a drive shaft is connected to the end of the hinge rod (23) away from the image collector (3); the drive shaft passes through the suspension rod (7) and is connected to a worm gear (22) at the end thereof; the worm gear (22) cooperates with the worm gear (21).
6. The PCB visual inspection device according to claim 5, characterized in that: The suspension rod (7) is connected with an avoidance groove (24), and the avoidance groove (24) cooperates with the hinge rod (23).
7. The PCB visual inspection device according to claim 1, characterized in that: The image collector (3) is evenly connected to a light source (25) in a circumferential direction.