AOI optical detection device for SMT

Abstract

The utility model discloses an AOI (Automatic Optic Inspection) optical detection device for SMT (Surface Mount Technology), which belongs to the technical field of optical detection and comprises a working table, a conveying device and two support frames are fixedly connected onto the working table, the conveying device is positioned between the two support frames, a three-axis sliding rail is arranged on the two support frames, a detection camera is connected onto the three-axis sliding rail in a sliding manner, and the detection camera is positioned on the working table. The detection camera corresponds to the conveying device, a rotating shaft is rotationally connected into the conveying device, a driving motor is fixedly connected to one side end of the conveying device, the output end of the driving motor movably penetrates through the conveying device and is fixedly connected to one end of the rotating shaft, and two first clamping plates and two second clamping plates are rotationally connected to the rotating shaft; the two first clamping plates correspond to the two second clamping plates respectively; according to the utility model, the double-sided PCBA product is placed in the device to be conveyed, the double-sided optical detection is completed through overturning in the conveying process, the detection process is simple, the double-sided detection is completed through one-time conveying, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, and more specifically to an AOI optical detection device for SMT. Background Art

[0002] AOI optical inspection systems are widely used in the electronics industry's SMT patch processing lines to replace previous manual visual inspection operations. AOI uses imaging technology to compare the object under test with a standard image to determine whether it meets the standard.

[0003] Currently, AOI inspection equipment, also known as AOI optical automatic inspection equipment, has become an important inspection tool and process quality control tool for ensuring product quality in the electronics manufacturing industry. It is often used for inspecting PCBA products. However, most existing AOI optical inspection devices can usually only inspect one side of a PCBA product. When inspecting double-sided PCBA products, workers need to turn the PCBA product over and put it back into the inspection device for a second inspection. The entire inspection process is not only cumbersome but also inefficient. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide an AOI optical inspection device for SMT, aiming to solve the problem that the AOI optical inspection device in the prior art can usually only inspect one side of the PCBA product. When inspecting double-sided PCBA products, the staff needs to turn the PCBA product over and put it back into the inspection device for a second inspection. The entire inspection process is not only cumbersome but also has low inspection efficiency.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod.

[0009] As a preferred solution of the present invention, each of the elastic components includes two through-holes, a sliding column and two springs, the two through-holes are respectively opened on a first clamping plate and a second clamping plate, the sliding column moves through the two through-holes, the two springs are both sleeved on the circumferential surface of the sliding column, and the two springs correspond to a first clamping plate and a second clamping plate respectively.

[0010] As a preferred solution of the present invention, two rotation grooves are provided on the rotation shaft, and one end of the two first clamping plates and the two second clamping plates are rotatably connected to the two rotation grooves respectively.

[0011] As a preferred solution of the present invention, the adjacent ends of the two first splints and the two second splints are fixedly connected to the limiting protrusions, and the adjacent ends of the two first splints and the two second splints are provided with anti-slip grooves.

[0012] As a preferred solution of the present invention, a top end of one of the support frames is fixedly connected to a fixed slide rail, and the three-axis slide rail is slidably connected to the fixed slide rail.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In this solution, the double-sided PCBA product is optically inspected on one side by the inspection camera during the conveying process. After the optical inspection is completed, the driving motor controls the rotating shaft to rotate 180 degrees, so that the two first clamps and the two second clamps elastically clamp the double-sided PCBA product through two elastic components and flip it over. After flipping, the other side of the double-sided PCBA product corresponds to the inspection camera, and the inspection camera completes the double-sided optical inspection of the double-sided PCBA product. In this utility model, the double-sided PCBA product is placed in the device for conveying, and the double-sided optical inspection is completed after flipping during the conveying process. The inspection process is simple, and the double-sided inspection is completed in one conveying, which effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the utility model;

[0017] Figure 2 It is a partial structural diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 Exploded diagram;

[0019] Figure 4 For this utility model Figure 2 sectional view of .

[0020] Description of the numbers in the figure:

[0021] 1. Workbench; 2. Conveying device; 3. Support frame; 4. Three-axis slide rail; 5. Inspection camera; 6. Rotating shaft; 7. Drive motor; 8. First clamping plate; 9. Second clamping plate; 10. Elastic component; 101. Through-hole; 102. Sliding column; 103. Spring; 11. Limiting plate; 12. Limiting column; 13. Rotating groove; 14. Limiting protrusion; 15. Fixed slide rail. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 An AOI optical inspection device for SMT includes a workbench 1, a conveyor 2 and two support frames 3 are fixedly connected to the workbench 1, and the conveyor 2 is located between the two support frames 3, and a three-axis slide 4 is provided on the two support frames 3. A detection camera 5 is slidably connected to the three-axis slide 4, and the detection camera 5 corresponds to the conveyor 2. A rotating shaft 6 is rotatably connected in the conveyor 2, and a drive motor 7 is fixedly connected to one side end of the conveyor 2, and the output end of the drive motor 7 moves through the fixed connection of the conveyor 2. At one end of the rotating shaft 6, two first clamps 8 and two second clamps 9 are rotatably connected to the rotating shaft 6, and the two first clamps 8 correspond to the two second clamps 9 respectively. Elastic components 10 are respectively arranged between the two first clamps 8 and the two second clamps 9. A group of limiting plates 11 are fixedly connected to the two first clamps 8 and the two second clamps 9, and the two groups of limiting plates 11 are staggered. Two groups of limiting columns 12 are fixedly connected in the conveying device 2, and the two groups of limiting columns 12 correspond to the two groups of limiting plates 11 respectively.

[0027] In this embodiment, the double-sided PCBA product is transported by the conveying device 2. During the transportation process, it first enters between the two first clamping plates 8 and the two second clamping plates 9. The three-axis slide rail 4 controls the detection camera 5 to move and detect the corresponding PCBA product. After the single-sided detection of the PCBA product is completed, the driving motor 7 controls the rotation shaft 6 to rotate. The rotation shaft 6 drives the two first clamping plates 8 and the two second clamping plates 9 to rotate. The two first clamping plates 8 lift the PCBA product. At the same time, a group of limiting plates 11 on the two second clamping plates 9 are away from a group of limiting columns 12. Under the action of the elastic force of the two elastic components 10, the two second clamping plates 9 are matched. The two first clamps 8 are closed to clamp the PCBA product, and the rotating shaft 6 flips the clamped PCBA product 180° and places it on the conveying device 2. The inspection camera 5 performs optical inspection on the other side of the flipped PCBA product. During the flipping and placement of the PCBA product, a group of limiting plates 11 on the two first clamps 8 contact a group of limiting columns 12. A group of limiting columns 12 restricts the two first clamps 8 through a group of limiting plates 11, canceling the clamping of the two second clamps 9 and the two first clamps 8 on the PCBA product, so that the double-sided PCBA product can be sent out on the conveying device 2 after optical inspection.

[0028] Specifically, each elastic component 10 includes two through-holes 101, a sliding column 102 and two springs 103. The two through-holes 101 are respectively opened on a first clamping plate 8 and a second clamping plate 9. The sliding column 102 is movable through the two through-holes 101. The two springs 103 are both sleeved on the circumferential surface of the sliding column 102, and the two springs 103 correspond to a first clamping plate 8 and a second clamping plate 9 respectively.

[0029] In this embodiment, the sliding column 102 passes through a first clamping plate 8 and a second clamping plate 9 through two through-holes 101, so that the two springs 103 are stabilized on the side away from the first clamping plate 8 and the second clamping plate 9, and the elastic force is applied to the first clamping plate 8 and the second clamping plate 9, so that the first clamping plate 8 and the second clamping plate 9 can clamp the PCBA product during the rotation process.

[0030] Specifically, two rotation slots 13 are defined on the rotation shaft 6 , and one end of the two first clamping plates 8 and one end of the two second clamping plates 9 are rotatably connected to the two rotation slots 13 , respectively.

[0031] In this embodiment, the two rotation grooves 13 enable the two first clamping plates 8 and the two second clamping plates 9 to rotate on the rotation shaft 6 by a certain angle, thereby eliminating the clamping of the PCBA product.

[0032] Specifically, the adjacent ends of the two first splints 8 and the two second splints 9 are fixedly connected to the limiting protrusions 14 , and the adjacent ends of the two first splints 8 and the two second splints 9 are provided with anti-slip grooves.

[0033] In this embodiment, when the PCBA product enters between the two first clamping plates 8 and the two second clamping plates 9 , the four limiting protrusions 14 limit the PCBA product so that the PCBA product is accurately clamped between the two first clamping plates 8 and the two second clamping plates 9 .

[0034] Specifically, a top end of a support frame 3 is fixedly connected to a fixed slide rail 15 , and the three-axis slide rail 4 is slidably connected to the fixed slide rail 15 .

[0035] In this embodiment, the fixed slide rail 15 assists the sliding of the three-axis slide rail 4 , so that the three-axis slide rail 4 can stably adjust the detection position of the detection camera 5 .

[0036] Working principle: Double-sided PCBA products are transported through the conveying device 2. During the transportation process, they first enter between the two first clamping plates 8 and the two second clamping plates 9. The three-axis slide 4 controls the inspection camera 5 to move and inspect the corresponding PCBA products. After the single-sided inspection of the PCBA products is completed, the driving motor 7 controls the rotation shaft 6 to rotate. The rotation shaft 6 drives the two first clamping plates 8 and the two second clamping plates 9 to rotate. The two first clamping plates 8 lift the PCBA products. At the same time, a group of limit plates 11 on the two second clamping plates 9 move away from a group of limit columns 12. Under the action of the elastic force of the two elastic components 10, the two second clamping plates 9 are aligned. The two first clamps 8 are closed to clamp the PCBA product, and the rotating shaft 6 flips the clamped PCBA product 180° and places it on the conveying device 2. The inspection camera 5 performs optical inspection on the other side of the flipped PCBA product. During the flipping and placement of the PCBA product, a group of limiting plates 11 on the two first clamps 8 contact a group of limiting columns 12. A group of limiting columns 12 restricts the two first clamps 8 through a group of limiting plates 11, canceling the clamping of the two second clamps 9 and the two first clamps 8 on the PCBA product, so that the double-sided PCBA product can be sent out on the conveying device 2 after optical inspection.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An AOI optical inspection device for SMT, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected with a conveying device (2) and two support frames (3), and the conveying device (2) is located between the two support frames (3). The two support frames (3) are provided with a three-axis slide rail (4), and a detection camera (5) is slidably connected to the three-axis slide rail (4), and the detection camera (5) corresponds to the conveying device (2). A rotating shaft (6) is rotatably connected in the conveying device (2), and a driving motor (7) is fixedly connected to one side end of the conveying device (2), and the output end of the driving motor (7) movably passes through the conveying device (2) and is fixedly connected to one end of the rotating shaft (6). Two first clamping plates (8) and two second clamping plates (9) are rotatably connected to the rotating shaft (6), and the two first clamping plates (8) correspond to the two second clamping plates (9) respectively. Elastic components (10) are respectively provided between the two first clamping plates (8) and the two second clamping plates (9). A group of limiting plates (11) are fixedly connected to the two first clamping plates (8) and the two second clamping plates (9), and the two groups of limiting plates (11) are distributed in a staggered manner. Two groups of limiting columns (12) are fixedly connected in the conveying device (2), and the two groups of limiting columns (12) correspond to the two groups of limiting plates (11) respectively.

2. The AOI optical inspection device for SMT according to claim 1, characterized in that: Each elastic component (10) includes two through-holes (101), a sliding column (102) and two springs (103). The two through-holes (101) are respectively opened on a first clamping plate (8) and a second clamping plate (9). The sliding column (102) is movable through the two through-holes (101). The two springs (103) are both sleeved on the circumferential surface of the sliding column (102), and the two springs (103) correspond to a first clamping plate (8) and a second clamping plate (9) respectively.

3. The AOI optical inspection device for SMT according to claim 2, characterized in that: Two rotation grooves (13) are provided on the rotation shaft (6), and one end of the two first clamping plates (8) and the two second clamping plates (9) are respectively rotationally connected in the two rotation grooves (13).

4. The AOI optical inspection device for SMT according to claim 3, characterized in that: The adjacent ends of the two first splints (8) and the two second splints (9) are fixedly connected to the limiting protrusions (14), and the adjacent ends of the two first splints (8) and the two second splints (9) are provided with anti-slip grooves.

5. The AOI optical inspection device for SMT according to claim 4, characterized in that: A top end of the support frame (3) is fixedly connected to a fixed slide rail (15), and the three-axis slide rail (4) is slidably connected to the fixed slide rail (15).

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