Panel assembly precision detection equipment

Abstract

According to the technical scheme, the panel assembly precision detection equipment is characterized by comprising a rack, a feeding mechanism, a code reader, a carrying mechanism, a detection mechanism and a discharging mechanism are arranged on the rack, after products are conveyed to a feeding table, the code reader scans the products to read number information, then the carrying mechanism carries the products to the detection mechanism, and the detection mechanism carries the products to the discharging mechanism; the detection mechanism detects the precision of the product, and after detection is completed, the discharging mechanism conveys the good product to the next procedure or discharges the defective product; according to the utility model, the full-automatic detection process is realized, manual operation is not needed, and the overall production efficiency and the product percent of pass are improved.

Description

Technical Field

[0001] This utility model relates to the field of AOI inspection equipment, and more specifically to a flat panel assembly accuracy inspection device. Background Technology

[0002] In modern electronics manufacturing, the production process of tablet computers and other tablet products is becoming increasingly refined and efficient. Among them, the assembly process is a key step in connecting various components and forming the final product, and its quality control has a crucial impact on the overall product performance and yield.

[0003] However, in actual production, a common problem is that products often go directly to the downstream pressure holding process after the assembly process without undergoing a precision inspection process beforehand. This results in defective products being included in the pressure holding process as well, increasing the difficulty and cost of rework after defective products are found in subsequent inspection stages. If each product is inspected manually, it will severely restrict the overall efficiency of the production line. Therefore, it is necessary to set up a new type of equipment that can automatically complete the inspection process to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A flat panel assembly precision testing device includes a frame, on which are mounted: a loading mechanism including a first X-axis drive rail, on which a loading platform is slidably connected, the first X-axis drive rail driving the loading platform to move along the X-axis; a barcode reader for reading product number information; a conveying mechanism including a first Y-axis drive rail, on which a first gripper assembly is slidably connected, the first Y-axis drive rail driving the first gripper assembly to move along the Y-axis; a testing mechanism including a second X-axis drive rail, on which a testing platform is slidably connected, the second X-axis drive rail driving the testing platform to move along the X-axis; and an AOI testing component for testing product precision; and an unloading mechanism including a second Y-axis drive rail, on which a second gripper assembly is slidably connected, the second Y-axis drive rail driving the second gripper assembly to move along the Y-axis, the second X-axis drive rail extending at least below the first Y-axis drive rail; and an NG unloading conveyor belt.

[0006] The present invention is further configured such that: the first gripper assembly includes a mounting plate slidably connected to the first Y-axis guide rail, the mounting plate is provided with a lifting cylinder, the lifting cylinder is connected to a plurality of suction cup grippers, and the lifting cylinder drives the suction cup grippers to move up and down.

[0007] The present invention is further configured such that: a connecting plate is fixed on the output shaft of the lifting cylinder, a plurality of adjusting plates are provided at the bottom of the connecting plate, the suction cup grippers are provided on the adjusting plates, and at least two suction cup grippers are provided on each adjusting plate.

[0008] The present invention is further configured such that: a plurality of the adjustment plates are arranged along the Y-axis direction, the adjustment plates extend along the X-axis direction, the adjustment plates are adjustable along the Y-axis direction, and the suction cup grippers are adjustable along the X-axis direction.

[0009] The present invention is further configured such that: a sliding groove is provided on the adjusting plate along the X-axis direction, and a plurality of nuts are slidably connected in the sliding groove; a bolt passes through the suction cup claw and is threadedly connected to the nut to achieve relative fixation between the suction cup claw and the adjusting plate; a sliding hole is provided on the connecting plate along the Y-axis direction, and a bolt passes through the sliding hole and is threadedly connected to the nut to achieve relative fixation between the adjusting plate and the connecting plate.

[0010] The present invention is further configured such that the AOI detection component includes a first upper camera and a second upper camera located above the detection platform, and a first lower camera and a second lower camera located below the detection platform.

[0011] The present invention is further configured such that: a support plate is provided on the frame, the first upper camera is fixed on the support plate, an upper adjustment component is provided on the support plate, the second upper camera is fixed on the upper adjustment component, and the upper adjustment component drives the second upper camera to move along the Y-axis.

[0012] The present invention is further configured such that: a first lower adjustment component and a second lower adjustment component are provided on the frame; the first lower camera and the second lower adjustment component are fixed on the first lower adjustment component; the first lower adjustment component drives the first lower camera and the second lower adjustment component to move along the X-axis; the second lower camera is fixed on the second lower adjustment component; and the second lower adjustment component drives the second lower camera to move along the Y-axis.

[0013] The present invention is further configured such that: two sets of detection mechanisms are arranged on the frame along the Y-axis direction, and the two detection mechanisms are respectively located on both sides of the feeding mechanism.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. After the assembly process is completed, the product is conveyed to the loading platform. The loading platform moves to the bottom of the first Y-axis drive rail, and the barcode reader scans the product to read the serial number information. Then, the first gripper assembly picks up the product and moves along the Y-axis to place the product on the inspection platform. The inspection platform moves along the X-axis, and the AOI inspection component checks the product's accuracy. After the inspection is completed, the inspection platform moves to the bottom of the second Y-axis drive rail, and the second gripper assembly picks up the product. Defective products are moved to the NG unloading conveyor belt, and good products are conveyed to the next process. This realizes a fully automated inspection process, eliminating the need for manual operation and improving overall production efficiency and product qualification rate.

[0016] 2. Several adjusting plates are arranged along the Y-axis, and multiple suction cups are set on the adjusting plates. These plates can grip the corners of the product, making the product move more smoothly and less prone to bending. Furthermore, the positions of the adjusting plates and suction cups can be adjusted, allowing the gripper assembly to be adapted to products of different sizes.

[0017] 3. Inspection mechanisms are set on both sides of the feeding mechanism. The product is picked up by the grippers and placed on the two inspection mechanisms at the same time to improve inspection efficiency. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of this embodiment;

[0019] Figure 2 This is a schematic diagram of the feeding mechanism;

[0020] Figure 3 This is a schematic diagram of the handling mechanism;

[0021] Figure 4 This is a schematic diagram of the first gripper assembly;

[0022] Figure 5 This is a schematic diagram of the testing organization.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Feeding mechanism; 101. First X-axis drive rail; 102. Feeding platform;

[0025] 2. Handling mechanism; 201. First Y-axis drive rail; 202. First gripper assembly; 2021. Mounting plate; 2022. Lifting cylinder; 2023. Suction cup gripper; 2024. Connecting plate; 2025. Adjusting plate; 2026. Slide groove; 2027. Slide hole;

[0026] 3. Detection mechanism; 301. Second X-axis drive rail; 302. Detection table; 303. AOI detection assembly; 3031. First upper camera; 3032. Second upper camera; 3033. First lower camera; 3034. Second lower camera; 3035. Upper adjustment assembly; 3036. First lower adjustment assembly; 3037. Second lower adjustment assembly;

[0027] 4. Unloading mechanism; 401. Second Y-axis drive rail; 402. Second gripper assembly; 403. NG unloading conveyor belt;

[0028] 5. Frame; 6. Code reader; 7. Support plate; 8. Product. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0031] A flat panel assembly accuracy testing device, such as Figure 1 As shown, the assembly includes a frame 5, on which are mounted a feeding mechanism 1, a barcode reader 6, a conveying mechanism 2, a testing mechanism 3, and a unloading mechanism 4. After the previous assembly process is completed, the product 8 is conveyed to the feeding mechanism 1. The barcode reader 6 scans the product 8 to read the product number information, and then the conveying mechanism 2 moves the product 8 to the testing mechanism 3. The testing mechanism 3 tests the assembly accuracy of the product 8. After the test is completed, the unloading mechanism 4 conveys the product 8 to the next process or discharges it.

[0032] like Figure 2As shown, the feeding mechanism 1 includes a first X-axis drive rail 101, which extends along the X-axis direction. A feeding platform 102 is slidably connected to the first X-axis drive rail 101. The first X-axis drive rail 101 drives the feeding platform 102 to move along the X-axis direction. The conveying mechanism 2 is located above the first X-axis drive rail 101. After the product 8 is conveyed to the feeding platform 102, the first X-axis drive rail 101 drives the feeding platform 102 to move below the conveying mechanism 2.

[0033] like Figure 3 and Figure 4 As shown, the conveying mechanism 2 includes a first Y-axis drive rail 201, which extends along the Y-axis direction. A first gripper assembly 202 is slidably connected to the first Y-axis drive rail 201, and the first Y-axis drive rail 201 drives the first gripper assembly 202 to move along the Y-axis.

[0034] The first gripper assembly 202 includes a mounting plate 2021 slidably connected to the first Y-axis guide rail. A linear motor drives the mounting plate 2021 to move along the Y-axis. A lifting cylinder 2022 is fixed on the mounting plate 2021. The lifting cylinder 2022 is vertically arranged with its output shaft facing downward. Several suction cup grippers 2023 are connected to the lifting cylinder 2022. The lifting cylinder 2022 drives the suction cup grippers 2023 to move up and down in the vertical direction (i.e., move along the Z-axis).

[0035] A connecting plate 2024 is fixed on the output shaft of the lifting cylinder 2022. Several adjusting plates 2025 are provided at the bottom of the connecting plate 2024. Suction cup grippers 2023 are provided on the adjusting plates 2025, and each adjusting plate 2025 is provided with at least two suction cup grippers 2023. Several adjusting plates 2025 are arranged along the Y-axis direction and extend along the X-axis direction. The position of the adjusting plates 2025 can be adjusted along the Y-axis direction, and the position of the suction cup grippers 2023 can be adjusted along the X-axis direction. In this embodiment, there are three adjusting plates 2025, and each adjusting plate 2025 is provided with two suction cup grippers 2023. The two suction cup grippers 2023 are close to both ends of the adjusting plate 2025.

[0036] The adjusting plate 2025 has a sliding groove 2026 along the X-axis. The top and both ends of the sliding groove 2026 are open. Several nuts are slidably connected in the sliding groove 2026. The upper and lower sides of the nuts are limited, and they can only slide in the X-axis direction. After the bolt passes through the suction cup claw 2023, it is threadedly connected to the nut in the sliding groove 2026, so that the suction cup claw 2023 abuts against the adjusting plate 2025, thereby fixing the suction cup claw 2023 and the adjusting plate 2025 relatively. When the bolt is loosened, the nut slides in the sliding groove 2026, so that the position of the suction cup claw 2023 can be adjusted in the X-axis direction.

[0037] A sliding hole 2027 is provided on the connecting plate 2024 along the Y-axis direction. After the bolt passes through the sliding hole 2027, it is threadedly connected to the nut in the sliding groove 2026. The bolt is tightened on the connecting plate 2024 to achieve relative fixation between the adjusting plate 2025 and the connecting plate 2024. When the bolt is loosened, the adjusting plate 2025 can be adjusted along the Y-axis direction by sliding the bolt in the sliding hole 2027.

[0038] like Figure 5 As shown, the inspection mechanism 3 includes a second X-axis drive rail 301, which extends along the X-axis direction. An inspection table 302 is slidably connected to the second X-axis drive rail 301. The second X-axis drive rail 301 drives the inspection table to move along the X-axis direction. It also includes an AOI inspection component 303 for inspecting the accuracy of the product 8. The transport mechanism 2 transports the product 8 to the inspection table 302. The inspection table 302 moves along the X-axis, and the AOI inspection component 303 performs inspection.

[0039] The AOI inspection component 303 includes a first upper camera 3031 and a second upper camera 3032 located above the inspection table 302, and a first lower camera 3033 and a second lower camera 3034 located below the inspection table 302. The first upper camera 3031 and the second upper camera 3032 take pictures from top to bottom, and the first lower camera 3033 and the second lower camera 3034 take pictures from bottom to top. Each camera includes a lens and a light source. The middle part of the inspection table 302 is open. In this embodiment, the product 8 being inspected is an FPC.

[0040] A support plate 7 is provided on the frame 5. The support plate 7 is located above the second X-axis drive rail 301 and extends along the Y-axis. The code reader 6 and the first upper camera are fixed on the support plate 7. An upper adjustment component 3035 is provided on the support plate 7. The second upper camera 3032 is fixed on the upper adjustment component 3035. The upper adjustment component 3035 drives the second upper camera 3032 to move along the Y-axis.

[0041] The frame 5 is equipped with a first lower adjustment component 3036 and a second lower adjustment component 3037. The first lower camera 3033 and the second lower adjustment component 3037 are fixed on the first lower adjustment component 3036. The first lower adjustment component 3036 drives the first lower camera and the second lower adjustment component 3037 to move along the X-axis. The second lower camera 3034 is fixed on the second lower adjustment component 3037. The second lower adjustment component 3037 drives the second lower camera 3034 to move along the Y-axis. Therefore, the distance between the two upper cameras and the two lower cameras can be adjusted. In this embodiment, the upper adjustment component 3035 is driven by a motor and a lead screw, and the first lower adjustment component 3036 and the second lower adjustment component 3037 are driven by linear motors. In other embodiments, they can also be driven by motors and lead screws or by linear motors.

[0042] The accuracy detection method for AOI inspection components is as follows:

[0043] 1. The first upper camera 3031 obtains the intersection point A1 by identifying the two right-angled sides of the backlight, and the second upper camera 3032 obtains the intersection point B1 by identifying the two right-angled sides. The first upper camera 3031 and the second upper camera 3032 can map the two points A1 and B1 into the same coordinate system through calibration.

[0044] 2. The first lower camera 3033 obtains the intersection point A2 by identifying the two right-angled sides of area AA, and the second lower camera 3034 obtains the intersection point B2 by identifying the two right-angled sides. The first lower camera 3033 and the second lower camera 3034 can map the two points A2 and B2 into the same coordinate system through calibration.

[0045] 3. When product 8 is moved to the other end, the upper and lower cameras detect the intersection points C1, D1, C2, and D2 respectively.

[0046] 4. The upper and lower cameras also need to be calibrated to the same coordinate system. The final result is that the eight points A1B1C1D1 and A2B2C2D2 are all mapped to the same coordinate system.

[0047] 5. Given A1B1C1D1, we get center point P1; given A2B2C2D2, we get center point P2. By calculating the distance between points P1 and P2, we can obtain the deviation distance.

[0048] 6. The angle between lines P1A1 and P2A2 can be used to obtain the angular deviation.

[0049] like Figure 1 As shown, two sets of detection mechanisms 3 are arranged on the frame 5 along the Y-axis direction. The two sets of detection mechanisms 3 are located on both sides of the feeding mechanism 1. After the conveying mechanism 2 moves the product 8 to the detection mechanism 3 on one side, the next product 8 moves to the detection mechanism 3 on the other side. The conveying is carried out alternately, which improves the detection efficiency.

[0050] The unloading mechanism 4 includes a second Y-axis drive rail 401, which extends along the Y-axis direction. A second gripper assembly 402 is slidably connected to the second Y-axis drive rail 401. The second Y-axis drive rail 401 drives the second gripper assembly 402 to move along the Y-axis. A second X-axis drive rail 301 extends at least from below the first Y-axis drive rail 201 to below the second Y-axis drive rail 401, and can cooperate with the first gripper assembly 202 and the second gripper assembly 402 for material handling. The structure of the second gripper assembly 402 is the same as that of the first gripper assembly 202. In this embodiment, the drive rails are all driven by linear motors. In other embodiments, a motor plus a lead screw can also be used for driving.

[0051] The unloading mechanism 4 also includes an NG unloading conveyor belt 403, which is located on the side of the inspection mechanism 3 away from the other set of inspection mechanisms 3. Products 8 that fail the inspection are transported by the second gripper assembly 402 to the NG unloading conveyor belt 403 for discharge, while qualified products 8 are transported by the second gripper assembly 402 to the middle of the second Y-axis drive rail 401 (the position aligned with the loading mechanism 1) and transported to the next process.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flat panel assembly accuracy testing device, characterized in that: Includes a rack, on which are provided: The feeding mechanism includes a first X-axis drive rail, on which a feeding platform is slidably connected. The first X-axis drive rail drives the feeding platform to move along the X-axis. A barcode reader is used to read product serial number information. The conveying mechanism includes a first Y-axis drive rail, on which a first gripper assembly is slidably connected, and the first Y-axis drive rail drives the first gripper assembly to move along the Y-axis. The inspection mechanism includes a second X-axis drive rail, on which an inspection table is slidably connected. The second X-axis drive rail drives the inspection table to move along the X-axis. It also includes an AOI inspection component for inspecting the accuracy of the product. The unloading mechanism includes a second Y-axis drive rail, on which a second gripper assembly is slidably connected. The second Y-axis drive rail drives the second gripper assembly to move along the Y-axis. The second X-axis drive rail extends at least from below the first Y-axis drive rail to below the second Y-axis drive rail. It also includes an NG unloading conveyor belt.

2. The flat panel assembly accuracy testing equipment according to claim 1, characterized in that: The first gripper assembly includes a mounting plate slidably connected to a first Y-axis guide rail. A lifting cylinder is provided on the mounting plate, and a plurality of suction cup grippers are connected to the lifting cylinder. The lifting cylinder drives the suction cup grippers to move up and down.

3. The flat panel assembly accuracy testing equipment according to claim 2, characterized in that: A connecting plate is fixed on the output shaft of the lifting cylinder. Several adjusting plates are provided at the bottom of the connecting plate. The suction cup grippers are provided on the adjusting plates, and each adjusting plate is provided with at least two suction cup grippers.

4. The flat panel assembly accuracy testing equipment according to claim 3, characterized in that: Several adjustment plates are arranged along the Y-axis direction, the adjustment plates extend along the X-axis direction, the adjustment plates can be adjusted along the Y-axis direction, and the suction cup grippers can be adjusted along the X-axis direction.

5. The flat panel assembly accuracy testing equipment according to claim 4, characterized in that: The adjusting plate has a sliding groove along the X-axis, and several nuts are slidably connected in the sliding groove. After the suction cup claw is passed through the bolt, it is threadedly connected to the nut to achieve relative fixation between the suction cup claw and the adjusting plate. The connecting plate has a sliding hole along the Y-axis, and after the bolt is passed through the sliding hole, it is threadedly connected to the nut to achieve relative fixation between the adjusting plate and the connecting plate.

6. The flat panel assembly accuracy testing equipment according to claim 1, characterized in that: The AOI detection component includes a first upper camera and a second upper camera located above the detection platform, and a first lower camera and a second lower camera located below the detection platform.

7. The flat panel assembly accuracy testing equipment according to claim 6, characterized in that: The frame is provided with a support plate, the first upper camera is fixed on the support plate, the support plate is provided with an upper adjustment component, the second upper camera is fixed on the upper adjustment component, and the upper adjustment component drives the second upper camera to move along the Y-axis.

8. The flat panel assembly accuracy testing equipment according to claim 6, characterized in that: The frame is provided with a first lower adjustment component and a second lower adjustment component. The first lower camera and the second lower adjustment component are fixed on the first lower adjustment component. The first lower adjustment component drives the first lower camera and the second lower adjustment component to move along the X-axis. The second lower camera is fixed on the second lower adjustment component. The second lower adjustment component drives the second lower camera to move along the Y-axis.

9. The flat panel assembly accuracy testing equipment according to claim 1, characterized in that: Two sets of detection mechanisms are arranged on the frame along the Y-axis, and the two detection mechanisms are located on both sides of the feeding mechanism.

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