COB (Chip On Board) gluing detection device

Abstract

The utility model discloses a COB gluing detection device, and relates to the technical field of COB packaging, the COB gluing detection device comprises an operation table, the inner side of the operation table is provided with a sliding groove, the inner side of the operation table is symmetrically provided with two groups of rotating shaft grooves, the inner wall of the sliding groove is symmetrically provided with two groups of connecting grooves penetrating to the rotating shaft grooves, and the rotating shaft grooves are connected with the sliding groove. An upper straight sliding rail and a lower curved sliding rail are symmetrically arranged on the inner side of the sliding groove, five sets of supporting rollers are rotationally connected to the inner side of each set of rotating shaft groove, a moving belt is arranged on the outer sides of the supporting rollers, driving motors are symmetrically and fixedly connected to the two sides of the operation table, and a first moving table and a fixed base are arranged on the inner side of the sliding groove. According to the utility model, through the design that the two groups of mobile stations alternately carry out feeding and detection, the waiting time for feeding in the detection process is eliminated, continuous and efficient detection of the detection device is realized, the operation time is greatly saved, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of COB packaging technology, and in particular to a COB coating detection device. Background Technology

[0002] COB (Chip On Board) packaging, also known as chip direct mounting technology, is a process in which a bare chip is directly fixed onto a printed circuit board, then wire bonded, and then encapsulated and protected with organic adhesive. This packaging method realizes the electrical and mechanical connection between the chip and the circuit board electrodes.

[0003] Most existing technical solutions rely on manual chip installation for testing. When inspecting the quality of chip adhesive coating, it is necessary to wait for the previous chip to be inspected before the next chip can be loaded and inspected. This waiting method leads to wasted time during the inspection process, making it impossible to achieve continuous monitoring and efficient inspection, thereby reducing the overall production efficiency and inspection efficiency. To address this issue, a COB adhesive coating inspection device is provided. Summary of the Invention

[0004] The purpose of this invention is to provide a COB coating detection device that can simultaneously perform material feeding and detection, and has high detection efficiency, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a COB coating detection device, comprising: an operating table, a sliding groove on the inner side of the operating table, two sets of rotating shaft grooves symmetrically formed on the inner side of the operating table, two sets of connecting grooves penetrating to the rotating shaft grooves symmetrically formed on the inner wall of the sliding groove, an upper straight slide rail and a lower curved slide rail symmetrically formed on the inner side of the sliding groove, five sets of support rollers rotatably connected to the inner side of each set of rotating shaft grooves, a movable belt provided on the outer side of the support rollers, drive motors symmetrically fixedly connected to both sides of the operating table, a first moving platform and a fixed base provided on the inner side of the sliding groove, four sets of limiting rods fixedly connected above the fixed base, a second moving platform provided above the fixed base, four sets of limiting sliding holes adapted to the limiting rods being formed below the second moving platform, sliding rollers symmetrically fixedly connected to both sides of the second moving platform and the first moving platform, and a positioning plate provided above both the second moving platform and the first moving platform.

[0006] As a further embodiment of this utility model: a support arm is fixedly connected above the operating table, two sets of supplementary lights are fixedly connected below the support arm, a light shield is fixedly connected below the support arm, and a detection camera is provided inside the light shield.

[0007] As a further embodiment of this utility model: the movable belt is taut on the outside of the support roller, and two sets of drive motors are provided. The rotating shafts of the two sets of drive motors respectively pass through a set of rotating shaft grooves and are fixedly connected to one set of support rollers.

[0008] As a further improvement of this utility model, the two ends of the side of the first moving platform are respectively fixedly connected to two sets of moving belts.

[0009] As a further improvement of this utility model, the fixed base has two sets of connecting grooves passing through both ends of its side surface and is fixedly connected to two sets of moving belts.

[0010] As a further embodiment of this utility model: the sliding rollers fixedly connected to both sides of the first moving platform slide inside the two sets of upper straight slide rails, and the sliding rollers fixedly connected to both sides of the second moving platform slide inside the two sets of lower curved slide rails.

[0011] As a further improvement of this utility model: the positioning plate is a replaceable design with positioning holes adapted to the chip to be tested on its top, and four sets of positioning posts are fixedly connected to the bottom of the positioning plate. Positioning holes adapted to the positioning posts are also provided on the top of the second moving stage and the first moving stage.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By designing two sets of moving stages and their matching moving belts and drive motor systems, this utility model enables one moving stage to perform chip coating quality inspection while the other moving stage moves to the loading area to load and prepare the chips. This alternating operation method greatly saves operation time and improves inspection efficiency.

[0014] 2. In this utility model, the first moving platform moves stably along the upper straight slide rail, ensuring the accuracy and stability of the linear motion, while the second moving platform achieves stable movement along a curved trajectory through the design of the lower curved slide rail and the limiting rod. At the same time, it avoids collisions between the two moving platforms when exchanging positions, ensuring the stability of the motion and providing sufficient flexibility and safety.

[0015] 3. The positioning plate in this utility model adopts a replaceable design, which can be replaced with a suitable positioning plate according to different chip models, thereby adapting to the coating quality inspection requirements of various chips and enhancing the versatility and practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second-view structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sliding groove in this utility model;

[0019] Figure 4 This is a side sectional view of the structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting sliding hole in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the second mobile platform in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the first mobile platform in this utility model.

[0023] In the diagram: 1. Operating platform; 2. Sliding groove; 3. Rotary shaft groove; 4. Connecting groove; 5. Upper straight slide rail; 6. Lower curved slide rail; 7. Support roller; 8. Moving belt; 9. Drive motor; 10. First moving stage; 12. Fixed base; 13. Limiting roller; 14. Second moving stage; 15. Limiting sliding hole; 16. Sliding roller; 17. Positioning plate; 18. Support arm; 19. Fill light; 20. Light shield; 21. Detection camera. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0026] Reference Figures 1 to 7In this embodiment of the present invention, a COB coating detection device includes: an operating table 1, a sliding groove 2 on the inner side of the operating table 1, two sets of rotating shaft grooves 3 symmetrically formed on the inner side of the operating table 1, two sets of connecting grooves 4 symmetrically formed on the inner wall of the sliding groove 2 extending into the rotating shaft grooves 3, an upper straight slide rail 5 and a lower curved slide rail 6 symmetrically formed on the inner side of the sliding groove 2, five sets of support rollers 7 rotatably connected to the inner side of each set of rotating shaft grooves 3, a moving belt 8 provided on the outer side of the support rollers 7, drive motors 9 symmetrically fixedly connected to both sides of the operating table 1, the moving belts 8 being taut on the outer side of the support rollers 7, two sets of drive motors 9 being provided, the rotating shafts of the two sets of drive motors 9 respectively passing through a set of rotating shaft grooves 3 and fixedly connected to one set of support rollers 7, through this design, the two sets of drive motors 9 can respectively control and drive the two sets of moving belts 8 to rotate, a first moving platform 10 and a fixed base 12 are provided on the inner side of the sliding groove 2, the two ends of the side of the first moving platform 10 are respectively fixedly connected to the two sets of moving belts 8. Next, four sets of limiting rollers 13 are fixedly connected to the top of the fixed base 12. A second moving stage 14 is set above the fixed base 12. Two sets of connecting grooves 4 pass through the two ends of the side of the fixed base 12 and are fixedly connected to two sets of moving belts 8. Four sets of limiting sliding holes 15 adapted to the limiting rollers 13 are opened below the second moving stage 14. Sliding rollers 16 are symmetrically fixedly connected to both sides of the second moving stage 14 and the first moving stage 10. The sliding rollers 16 fixedly connected to both sides of the first moving stage 10 slide inside the two sets of upper straight slide rails 5. The sliding rollers 16 fixedly connected to both sides of the second moving stage 14 slide inside the two sets of lower curved slide rails 6. A positioning plate 17 is set above the second moving stage 14 and the first moving stage 10. The positioning plate 17 is a replaceable design and has a positioning hole adapted to the chip to be tested. Four sets of positioning posts are fixedly connected below the positioning plate 17. Positioning holes adapted to the positioning posts are opened above the second moving stage 14 and the first moving stage 10.

[0027] Using the above scheme: When the adhesive coating detection device starts monitoring the adhesive coating quality of the chip, the two sets of drive motors 9 start synchronously, driving the support rollers 7 to drive the moving belt 8 to rotate back and forth, thereby driving the first moving stage 10 and the fixed base 12 to move along the moving belt 8 in two directions. At this time, due to the sliding of the limiting roller 13 in the limiting sliding hole 15, and with the limiting effect of the sliding roller 16, the first moving stage 10 and the second moving stage 14 will move back and forth alternately along the upper straight slide rail 5 and the lower curved slide rail 6, respectively. This allows the chip to be loaded onto another set of moving stages at the same time when the first moving stage 10 or the second moving stage 14 is being detected, greatly saving operation time.

[0028] Reference Figure 1 and Figure 2 A support arm 18 is fixedly connected above the operating table 1, two sets of supplementary lights 19 are fixedly connected below the support arm 18, a light shield 20 is fixedly connected below the support arm 18, and a detection camera 21 is set inside the light shield 20.

[0029] The above solution provides sufficient illumination to ensure that the detection camera 21 can clearly capture the coating of the chip during the detection process. The design of the light shield 20 can prevent the light from the filler lamp 19 from affecting the operation of the detection camera 21.

[0030] The working principle of this utility model is as follows: First, the chip to be tested is placed in the positioning hole on the positioning plate 17 of the first moving stage 10 or the second moving stage 14 that has not been tested for adhesive coating. The positioning plate 17 here is designed to be replaceable, so the appropriate positioning plate 17 can be replaced according to different models of chips.

[0031] Two sets of drive motors 9 are started. These two drive motors 9 control the rotation of two sets of moving belts 8 respectively. The moving belts 8 are taut on the outside of the support rollers 7. When the drive motors 9 rotate, the moving belts 8 will move accordingly.

[0032] Since the first moving platform 10 is fixedly connected to a section of the upper half of the two sets of moving belts 8, and the second moving platform 14 is fixedly connected to a section of the lower half of the two sets of moving belts 8 through the fixed base 12, the two sets of moving platforms will move in opposite directions as the moving belts 8 rotate.

[0033] The sliding rollers 16 on both sides of the first moving platform 10 slide inside the upper straight slide rail 5 to ensure that the first moving platform 10 moves stably along a straight line. Since the limiting rollers 13 on the fixed base 12 can slide up and down in the limiting sliding holes 15 of the second moving platform 14, they provide additional stability and guidance. In conjunction with the sliding rollers 16 on both sides of the second moving platform 14 sliding inside the lower curved slide rail 6, the second moving platform 14 can move along a curved trajectory, so that the two sets of moving platforms will not collide during the exchange of positions.

[0034] When the first moving stage 10 moves to the area below the detection camera 21, the detection camera 21 will start to inspect the adhesive coating quality of the chip on the moving stage. While the first moving stage 10 is inspecting, the second moving stage 14 will move to the loading area so that the operator can place the next chip to be inspected on it. After the inspection is completed, the first moving stage 10 will return to the loading area along the moving belt 8, while the second moving stage 14 will move to the inspection position for inspection. This process will be repeated continuously to achieve efficient alternating inspection.

[0035] During the testing process, the supplementary light 19 under the support arm 18 will provide sufficient illumination to ensure that the testing camera 21 can clearly capture the coating of the chip. The design of the light shield 20 can prevent the light from the supplementary light 19 from causing unnecessary interference or reflection to the testing camera 21.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A COB coating detection device, characterized in that, include: The operating table (1) has a sliding groove (2) on its inner side. Two sets of rotating shaft grooves (3) are symmetrically opened on the inner side of the operating table (1). Two sets of connecting grooves (4) that penetrate to the rotating shaft grooves (3) are symmetrically opened on the inner wall of the sliding groove (2). An upper straight slide rail (5) and a lower curved slide rail (6) are symmetrically opened on the inner side of the sliding groove (2). Five sets of support rollers (7) are rotatably connected to the inner side of each set of rotating shaft grooves (3). A moving belt (8) is provided on the outer side of the support rollers (7). A drive motor (9) is symmetrically fixedly connected to both sides of the operating table (1). The sliding groove (2) A first moving platform (10) and a fixed base (12) are provided on the inner side. Four sets of limiting rods (13) are fixedly connected above the fixed base (12). A second moving platform (14) is provided above the fixed base (12). Four sets of limiting sliding holes (15) adapted to the limiting rods (13) are opened below the second moving platform (14). Sliding rollers (16) are symmetrically fixedly connected on both sides of the second moving platform (14) and the first moving platform (10). A positioning plate (17) is provided above the second moving platform (14) and the first moving platform (10).

2. The COB coating detection device according to claim 1, characterized in that, A support arm (18) is fixedly connected above the operating table (1), two sets of supplementary lights (19) are fixedly connected below the support arm (18), a light shield (20) is fixedly connected below the support arm (18), and a detection camera (21) is provided inside the light shield (20).

3. The COB coating detection device according to claim 1, characterized in that, The movable belt (8) is taut on the outside of the support roller (7). There are two sets of drive motors (9). The rotating shafts of the two sets of drive motors (9) pass through a set of rotating shaft grooves (3) and are fixedly connected to one set of support rollers (7).

4. The COB coating detection device according to claim 1, characterized in that, The first mobile platform (10) is fixedly connected to two sets of mobile belts (8) at both ends of its side.

5. The COB coating detection device according to claim 1, characterized in that, The fixed base (12) has two sets of connecting grooves (4) passing through its two sides and is fixedly connected to two sets of moving belts (8).

6. The COB coating detection device according to claim 1, characterized in that, The sliding rollers (16) fixedly connected to both sides of the first moving platform (10) slide inside the two sets of upper straight slide rails (5), and the sliding rollers (16) fixedly connected to both sides of the second moving platform (14) slide inside the two sets of lower curved slide rails (6).

7. The COB coating detection device according to claim 1, characterized in that, The positioning plate (17) is a replaceable design with positioning holes adapted to the chip to be tested. Four sets of positioning posts are fixedly connected to the bottom of the positioning plate (17). Positioning holes adapted to the positioning posts are opened on the top of the second moving stage (14) and the first moving stage (10).

Images