Visual inspection device based on industrial camera

Abstract

The present invention relates to the field of visual inspection technology, and specifically to a visual inspection device based on an industrial camera, in which a slide rail is arranged above a conveyor belt, and two groups of automatic flipping components that cooperate with each other are arranged on the slide rail, each group of automatic flipping components includes a supporting slide bar and two sliding blocks, and each supporting slide bar is provided with a flipping column for flipping a workpiece, and a swing detection component includes a mounting bracket, a driving component and an arc-shaped guide rod fixedly connected to the mounting bracket, and the driving component can drive the industrial camera to swing. In the present invention, automatic flipping of the workpiece can be achieved through the mutual cooperation of the conveyor belt and the two groups of automatic flipping components, without the need for additional power, and is more energy-saving and environmentally friendly. It is not only easy to maintain and debug, but also not prone to damage and failure, and has stronger stability in use. The present invention can also drive the industrial camera to swing along the arc-shaped guide rod, and the amplitude and speed of the swing can be adjusted, which can better meet actual use needs.

Description

Technical Field

[0001] The present invention relates to the field of visual inspection technology, and in particular to a visual inspection device based on an industrial camera. Background Art

[0002] Industrial cameras are one of the core components of visual inspection devices. Compared with ordinary cameras, they have higher image resolution, faster frame rate, better stability and anti-interference ability. Industrial cameras can adapt to a variety of complex industrial environments such as different lighting conditions, shooting distances and shooting angles. For example, on high-speed production lines, cameras are required to quickly capture clear images to ensure real-time inspection of products.

[0003] Visual inspection devices are widely used in the field of manufacturing and processing. They can detect the dimensional accuracy, surface quality, etc. of workpieces to ensure that the workpieces meet the design requirements.

[0004] For example, the FPC visual inspection machine with patent publication number CN117871542A relates to the technical field of visual inspection machines, which includes: a mobile frame; an installation cabinet, fixedly connected to the upper end of the mobile frame, and a visual inspection component is arranged inside the cabinet; a conveyor belt assembly, including a positioning main shaft rotatably installed at one end of the mobile frame, a positioning secondary shaft rotatably installed at the other end of the mobile frame, a receiving frame horizontally slidably installed in the mobile frame, and a crawler belt is wound around the receiving frame and the positioning main shaft and the positioning secondary shaft. This application can use a flipping mechanism to flip the product 180 degrees when the product passes the inspection once, so as to perform double-sided visual inspection without manual flipping and re-transport inspection.

[0005] However, existing visual inspection devices represented by this inspection machine, although they can realize product flipping, usually do so through a robot or a complex flipping structure. The former is costly and requires professional engineers to debug, while the latter has a complex structure and is prone to failure, making it difficult to meet actual production needs. Summary of the invention

[0006] The purpose of the present invention is to provide a visual inspection device based on an industrial camera to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a visual inspection device based on an industrial camera, comprising an inspection platform and a conveyor belt arranged above the inspection platform, a guide plate is arranged above the conveyor belt, a visual inspection bin is arranged above the guide plate, a slide rail is arranged above the conveyor belt, two groups of mutually cooperating automatic flipping components are arranged on the slide rail, each group of automatic flipping components comprises a supporting slide bar and two sliders, both sliders are slidably matched with the slide rail, the bottom of the supporting slide bar is hinged to the top of one of the sliders, the top of the other slider is hinged to an adjusting side rod, the top of the adjusting side rod is hinged to the side wall of the supporting slide bar, and each supporting slide bar is provided with a flipping column for flipping the workpiece;

[0008] It also includes a swing detection component, which includes a mounting bracket, a driving component, and an arc-shaped guide rod fixedly connected to the mounting bracket, a swing block is slidably connected to the arc-shaped guide rod, an industrial camera is arranged on the swing block, and the driving component is used to drive the industrial camera to swing along the arc-shaped guide rod.

[0009] In the present invention, the automatic flipping of the workpiece can be achieved through the cooperation between the conveyor belt and the two groups of automatic flipping components. No additional power is required. The flipping of the workpiece can be completed only by the conveying force of the conveyor belt itself, which is more energy-saving and environmentally friendly. Compared with the prior art, the structure is simpler, which is not only convenient for maintenance and debugging, but also not prone to damage and failure, and has stronger stability in use. The swing detection component designed in the present invention can also drive the industrial camera to swing along the arc-shaped guide rod. The amplitude and speed of the swing can be adjusted, so that the visual blind spots on both sides of the workpiece can be detected. The detection area is larger, which can better meet the actual use needs.

[0010] Furthermore, the slide rail is located inside the visual inspection bin, and each automatic flip assembly also includes a limit seat, each limit seat is slidably connected to a supporting slide rod, and each slider and limit seat is provided with an adjusting bolt.

[0011] Through the above technical solution, the position of the slider on the slide rail and the position of the limit seat on the supporting slide rod can be quickly adjusted according to actual needs to improve the adaptability to the flipping of workpieces of different sizes.

[0012] Furthermore, each supporting slide bar is slidably connected with a moving block, each moving block corresponds to a flip column, and each flip column is rotationally connected to the corresponding moving block.

[0013] Furthermore, each flip column is a cylindrical structure.

[0014] Through the above technical solution, the flip column can be better fitted with the surface of the workpiece, and there will be no jamming during the flipping of the workpiece, which is smoother.

[0015] Furthermore, a swing rod is fixedly connected to the bottom of the swing block, a rotating shaft is rotatably connected to the arc-shaped guide rod, one end of the rotating shaft is fixedly connected to the swing rod, and the other end of the rotating shaft is fixedly connected to the swing frame.

[0016] Furthermore, a telescopic shaft is rotatably connected to the mounting bracket, one end of the telescopic shaft is fixedly connected to an adjusting seat, a screw rod is rotatably connected inside the adjusting seat, a driving slide rod is threadedly connected to the screw rod, one end of the driving slide rod is slidably connected to the adjusting seat, a slide groove is provided on the swing frame, and the other end of the driving slide rod is slidably connected to the slide groove.

[0017] Furthermore, an adjusting knob is fixedly connected to the top of the screw rod, and the adjusting knob is used to drive the screw rod to rotate.

[0018] Furthermore, the driving component includes a driving motor, and the output end of the driving motor is connected to the movable end of the telescopic shaft via a spline.

[0019] Furthermore, a switching paddle is provided on the movable end of the telescopic shaft for driving the movable end of the telescopic shaft to extend and retract. An oblique card block is elastically connected to the fixed end of the telescopic shaft through a spring. The oblique card block cooperates with the switching paddle structure, and an adjusting piece is provided on the oblique card block.

[0020] Through the above technical solution, when the output end of the driving motor and the movable end of the telescopic shaft are connected by a spline, when the driving motor is working, the adjusting seat can be driven to rotate through the telescopic shaft, and then the driving slide bar can slide in the slide groove of the swing frame, so that the industrial camera can be driven to swing along the arc guide rod through the swing rod, so that the visual blind spots on both sides of the workpiece can be detected, and the position of the driving slide bar can be adjusted by rotating the adjustment knob, so that the swing amplitude of the industrial camera can be adjusted as needed, which is more adaptable.

[0021] Furthermore, a limit rod is slidably connected to the mounting bracket, a socket for plugging and cooperating with the limit rod is provided on the swing rod, a control paddle is provided on the limit rod, and a guide limit groove for limiting the control paddle is provided on the mounting bracket.

[0022] Through the above technical solution, when the industrial camera does not need to swing, the output end of the drive motor can be disconnected from the telescopic shaft first, and then the limit rod can be inserted into the socket to lock the position of the swing rod to ensure that the position of the industrial camera remains stable.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Firstly, in the present invention, the automatic flipping of the workpiece can be realized through the cooperation between the conveyor belt and the two groups of automatic flipping components. No additional power is required. The flipping of the workpiece can be completed only by the conveying force of the conveyor belt itself, which is more energy-saving and environmentally friendly. Compared with the prior art, the structure is simpler, which is not only convenient for maintenance and debugging, but also not prone to damage and failure, and has stronger stability in use. The swing detection component designed in the present invention can also drive the industrial camera to swing along the arc-shaped guide rod. The amplitude and speed of the swing can be adjusted, so that the visual blind spots on both sides of the workpiece can be detected. The detection area is larger, which can better meet the actual use needs.

[0025] Secondly, in the present invention, the driving slide rod can be moved on the lead screw by rotating the adjusting knob, so that the position of the driving slide rod can be adjusted to change the rotation radius of the driving slide rod, so that the swing amplitude of the industrial camera can be adjusted as needed. For example, when detecting larger workpieces or products, the swing amplitude of the industrial camera can be increased, and when detecting smaller workpieces or products, the swing amplitude of the industrial camera can be reduced, which is more adaptable.

[0026] Thirdly, in the present invention, when inspecting products or workpieces with smaller sizes or without blind spots on both sides, the industrial camera does not need to swing. First, the switching paddle can be toggled to disconnect the output end of the drive motor from the telescopic shaft, and then the limit rod can be inserted into the socket to lock the position of the swing rod to ensure that the position of the industrial camera remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Another perspective structural schematic diagram of the present invention as a whole;

[0029] Figure 3 It is a partial structural schematic diagram of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the automatic flipping assembly in the present invention;

[0031] Figure 5 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0032] Figure 6 is a schematic diagram of a workpiece in a first flipping state in the present invention;

[0033] Figure 7 is a schematic diagram of a workpiece in a second flipping state in the present invention;

[0034] Figure 8is a schematic diagram of a workpiece in the third flipping state in the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the swing detection component in the present invention;

[0036] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0037] Fig.11 It is a schematic diagram of the structure of the arc-shaped guide rod in the present invention;

[0038] Fig.12 It is a structural schematic diagram of the swing block in the present invention;

[0039] Fig.13 For the present invention Fig.12 The enlarged structural diagram at C in the middle;

[0040] Fig.14 It is a structural schematic diagram of the adjustment seat in the present invention;

[0041] Fig.15 It is a schematic diagram of the structure of the telescopic shaft in the present invention;

[0042] Fig.16 For the present invention Fig.15 The enlarged structural diagram at D in the middle;

[0043] Fig.17 For the present invention Fig.15 Enlarged structural diagram at E in the middle.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1. Visual inspection bin; 2. Conveyor belt; 3. Guide plate; 4. Slide rail; 5. Slider; 6. Moving block; 7. Mounting bracket; 8. Arc guide rod; 9. Drive motor; 10. Support slide rod; 11. Adjustment side rod; 12. Limit seat; 13. Flip column; 14. Adjustment bolt; 15. Swing block; 16. Industrial camera; 17. Swing rod; 18. Rotating shaft; 19. Swing frame; 20. Drive slide rod; 21. Adjustment seat; 22. Screw rod; 23. Adjustment knob; 24. Telescopic shaft; 25. Limiting rod; 26. Control paddle; 27. Switching paddle; 28. Oblique block; 29. ​​Spring; 30. Adjustment sheet; 31. Guide limit groove. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The present invention provides a technical solution: Figure 1 - Fig.17 The visual inspection device based on an industrial camera shown in the figure comprises an inspection platform and a conveyor belt 2 arranged above the inspection platform, a guide plate 3 is arranged above the conveyor belt 2, a visual inspection bin 1 is arranged above the guide plate 3, a slide rail 4 is arranged above the conveyor belt 2, two groups of mutually cooperating automatic flipping components are arranged on the slide rail 4, each group of automatic flipping components comprises a supporting slide bar 10 and two sliders 5, both sliders 5 are slidably matched with the slide rail 4, the bottom of the supporting slide bar 10 is hinged to the top of one of the sliders 5, and the top of the other slider 5 is hingedly provided with an adjusting side rod 11, the top of the adjusting side rod 11 is hinged to the side wall of the supporting slide bar 10, and each supporting slide bar 10 is provided with a flipping column 13 for flipping the workpiece;

[0048] It also includes a swing detection component, which includes a mounting bracket 7, a driving component and an arc-shaped guide rod 8 fixedly connected to the mounting bracket 7, a swing block 15 is slidably connected to the arc-shaped guide rod 8, an industrial camera 16 is arranged on the swing block 15, and the driving component is used to drive the industrial camera 16 to swing along the arc-shaped guide rod 8.

[0049] It should be noted that in the present invention, automatic flipping of the workpiece can be achieved through the cooperation between the conveyor belt 2 and the two groups of automatic flipping components. No additional power is required. The flipping of the workpiece can be completed only by the conveying force of the conveyor belt 2 itself, which is more energy-saving and environmentally friendly. Compared with the prior art, the structure is simpler, which is not only convenient for maintenance and debugging, but also less prone to damage and failure, and has stronger stability in use. The swing detection component designed in the present invention can also drive the industrial camera 16 to swing along the arc-shaped guide rod 8, and the amplitude and speed of the swing can be adjusted, so that the visual blind spots on both sides of the workpiece can be detected, and the detection area is larger, which can better meet the actual use needs.

[0050] See also Figure 1-Figure 5 The slide rail 4 is located inside the visual inspection bin 1. Each automatic flip assembly also includes a limit seat 12. Each limit seat 12 is slidably connected to a supporting slide rod 10. Each slider 5 and the limit seat 12 are provided with an adjusting bolt 14.

[0051] It is worth mentioning that the present invention can quickly adjust the position of the slider 5 on the slide rail 4 and the position of the limit seat 12 on the support slide rod 10 according to actual needs, so as to improve the adaptability to the flipping of workpieces of different sizes.

[0052] See also Figure 1-Figure 5 Each supporting slide bar 10 is slidably connected with a moving block 6, each moving block 6 corresponds to a flip column 13, each flip column 13 is rotationally connected to the corresponding moving block 6, and each flip column 13 is a cylindrical structure.

[0053] It should be pointed out that the flipping column 13 can be better fitted with the surface of the workpiece, and there will be no jamming during the flipping of the workpiece, which is smoother.

[0054] like Figure 6 In the first flipping state shown in FIG. 1 , when the workpiece is conveyed by the conveyor belt 2 and approaches the first set of automatic flipping components, it will be blocked by the flipping column 13 on the right and flip 90 degrees clockwise, thereby transforming into the first set of automatic flipping components. Figure 7 In the second flipping state shown in the figure, at this time, the flipping column 13 on the right will be lifted up by the workpiece, and the upper left part of the workpiece will be stuck by the flipping column 13 on the left. At this time, the conveyor belt 2 is still pushing the workpiece to move. Under the combined effect of the friction of the conveyor belt 2 and the downward pressure of the flipping column 13 on the right, the workpiece continues to flip 90 degrees clockwise, and the workpiece is transformed into Figure 8 The third flipping state shown can turn the workpiece upside down, making it easier for the industrial camera 16 to perform visual inspection on the workpiece to eliminate visual blind spots.

[0055] It should be noted that the present invention is more suitable for flipping rectangular workpieces or products, and the initial position of the flip column 13 and the inclination angle of the supporting slide rod 10 can be adjusted according to the size specifications of the workpiece or product, and targeted adjustments can be made according to workpieces or products of different sizes. When it is necessary to flip the product or workpiece twice in succession, the two groups of mutually cooperating automatic flipping components set on the slide rail 4 of the present invention can also be increased to 4 groups. The 4 groups of automatic flipping components cooperate with each other in pairs to complete two consecutive flipping of the product or workpiece.

[0056] See also Figure 9-Figure 14A swing rod 17 is fixedly connected to the bottom of the swing block 15, a rotating shaft 18 is rotatably connected to the arc guide rod 8, one end of the rotating shaft 18 is fixedly connected to the swing rod 17, and the other end of the rotating shaft 18 is fixedly connected to the swing frame 19, a telescopic shaft 24 is rotatably connected to the mounting bracket 7, one end of the telescopic shaft 24 is fixedly connected to an adjusting seat 21, a screw rod 22 is rotatably connected in the adjusting seat 21, a driving slide rod 20 is threadedly connected to the screw rod 22, one end of the driving slide rod 20 is slidably connected to the adjusting seat 21, a slide groove is provided on the swing frame 19, and the other end of the driving slide rod 20 is slidably connected to the slide groove.

[0057] An adjusting knob 23 is fixedly connected to the top of the screw rod 22, and the adjusting knob 23 is used to drive the screw rod 22 to rotate. The driving component includes a driving motor 9. The output end of the driving motor 9 is connected to the movable end of the telescopic shaft 24 by a spline. The movable end of the telescopic shaft 24 is provided with a switching paddle 27 for driving the movable end of the telescopic shaft 24 to extend and retract. The fixed end of the telescopic shaft 24 is elastically connected with an oblique clamping block 28 through a spring 29. The oblique clamping block 28 cooperates with the switching paddle 27 structure, and an adjusting piece 30 is provided on the oblique clamping block 28.

[0058] It should be noted that when it is necessary to detect a workpiece or product of larger size, the switching paddle 27 can be toggled so that the output end of the drive motor 9 and the movable end of the telescopic shaft 24 are connected by a spline. At this time, the oblique clamping block 28 can lock the position of the switching paddle 27 so that the drive motor 9 and the telescopic shaft 24 can be stably docked. At this time, when the drive motor 9 is working, the telescopic shaft 24 can drive the adjustment seat 21 to rotate, and then the drive slide bar 20 can slide in the slide groove of the swing frame 19, so that the swing bar 17 can drive the industrial camera 16 to swing along the arc guide rod 8, so that the visual blind spots on both sides of the workpiece can be detected;

[0059] It is worth mentioning that by rotating the adjusting knob 23, the driving slide rod 20 can be moved on the screw rod 22, so that the position of the driving slide rod 20 can be adjusted to change the rotation radius of the driving slide rod 20, so that the swing amplitude of the industrial camera 16 can be adjusted as needed. For example, when detecting larger workpieces or products, the swing amplitude of the industrial camera 16 can be increased, and when detecting smaller workpieces or products, the swing amplitude of the industrial camera 16 can be reduced, which is more adaptable.

[0060] See also Figure 15-17 A limit rod 25 is slidably connected to the mounting bracket 7, a socket for plugging and cooperating with the limit rod 25 is provided on the swing rod 17, a control paddle 26 is provided on the limit rod 25, and a guide limit groove 31 for limiting the control paddle 26 is provided on the mounting bracket 7.

[0061] It should be noted that when inspecting products or workpieces with smaller sizes or no blind spots on both sides, the industrial camera 16 does not need to swing. First, the switching paddle 27 can be toggled to disconnect the output end of the drive motor 9 from the telescopic shaft 24, and then the limit rod 25 can be inserted into the socket to lock the position of the swing rod 17 to ensure that the position of the industrial camera 16 remains stable. The specific usage can be determined according to actual conditions.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device based on an industrial camera, comprising an inspection platform and a conveyor belt (2) arranged above the inspection platform, a guide plate (3) being arranged above the conveyor belt (2), and a visual inspection chamber (1) being arranged above the guide plate (3), characterized in that: A slide rail (4) is arranged above the conveyor belt (2), and two groups of mutually cooperating automatic flipping components are arranged on the slide rail (4), each group of the automatic flipping components comprises a supporting slide bar (10) and two sliders (5), and the two sliders (5) are slidably matched with the slide rail (4), the bottom of the supporting slide bar (10) is hinged to the top of one of the sliders (5), and the top of the other slider (5) is hinged to an adjusting side rod (11), and the top of the adjusting side rod (11) is hinged to the side wall of the supporting slide bar (10), and each of the supporting slide bars (10) is provided with a flipping column (13) for flipping a workpiece; It also includes a swing detection component, which includes a mounting bracket (7), a driving component, and an arc-shaped guide rod (8) fixedly connected to the mounting bracket (7), a swing block (15) being slidably connected to the arc-shaped guide rod (8), an industrial camera (16) being arranged on the swing block (15), and the driving component is used to drive the industrial camera (16) to swing along the arc-shaped guide rod (8).

2. The visual inspection device based on an industrial camera according to claim 1, characterized in that: The slide rail (4) is located inside the visual inspection bin (1), and each of the automatic flipping components further comprises a limit seat (12), each limit seat (12) is slidably connected to a supporting slide rod (10), and each of the sliders (5) and the limit seat (12) is provided with an adjusting bolt (14).

3. The visual inspection device based on an industrial camera according to claim 2, characterized in that: Each of the supporting slide bars (10) is slidably connected to a moving block (6), each of the moving blocks (6) corresponds to a flip column (13), and each of the flip columns (13) is rotationally connected to the corresponding moving block (6).

4. The visual inspection device based on an industrial camera according to claim 1, characterized in that: Each of the turning columns (13) is a cylindrical structure.

5. The visual inspection device based on an industrial camera according to claim 4, characterized in that: The bottom of the swing block (15) is fixedly connected to a swing rod (17), the arc-shaped guide rod (8) is rotatably connected to a rotating shaft (18), one end of the rotating shaft (18) is fixedly connected to the swing rod (17), and the other end of the rotating shaft (18) is fixedly connected to a swing frame (19).

6. The visual inspection device based on an industrial camera according to claim 5, characterized in that: The mounting bracket (7) is rotatably connected to a telescopic shaft (24), one end of the telescopic shaft (24) is fixedly connected to an adjustment seat (21), a screw rod (22) is rotatably connected inside the adjustment seat (21), a driving slide rod (20) is threadedly connected to the screw rod (22), one end of the driving slide rod (20) is slidably connected to the adjustment seat (21), a slide groove is provided on the swing frame (19), and the other end of the driving slide rod (20) is slidably connected to the slide groove.

7. The visual inspection device based on an industrial camera according to claim 6, characterized in that: An adjusting knob (23) is fixedly connected to the top of the screw rod (22), and the adjusting knob (23) is used to drive the screw rod (22) to rotate.

8. The visual inspection device based on an industrial camera according to claim 6, characterized in that: The driving component comprises a driving motor (9), and an output end of the driving motor (9) is connected to a movable end of the telescopic shaft (24) via a spline.

9. The visual inspection device based on an industrial camera according to claim 8, characterized in that: A switching paddle (27) for driving the movable end of the telescopic shaft (24) to extend and retract is provided on the movable end of the telescopic shaft (24); an oblique clamping block (28) is elastically connected to the fixed end of the telescopic shaft (24) via a spring (29); the oblique clamping block (28) is structurally matched with the switching paddle (27); and an adjusting piece (30) is provided on the oblique clamping block (28).

10. The visual inspection device based on an industrial camera according to claim 9, characterized in that: The mounting bracket (7) is slidably connected to a limit plug rod (25), the swing rod (17) is provided with a plug hole for plugging with the limit plug rod (25), the limit plug rod (25) is provided with a control paddle (26), and the mounting bracket (7) is provided with a guide limit groove (31) for limiting the control paddle (26).

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