An AOI image inspection machine

Abstract

The present invention relates to the technical field of product defect detection, and specifically to an AOI image inspection machine, including a machine platform, a visual inspection mechanism, a transfer mechanism, a lighting inspection mechanism, a code scanning mechanism and a material unloading mechanism, wherein the transfer mechanism is fixedly arranged on the machine platform, the lighting inspection mechanism is installed on the transfer mechanism, the visual inspection mechanism is arranged on the machine platform across the transfer mechanism, the code scanning mechanism is arranged beside the transfer mechanism, the material unloading mechanism is arranged on the machine platform, and the material unloading mechanism transfers the product output from the transfer mechanism to the code scanning mechanism for code scanning and material unloading. In this way, when the product is placed on the transfer mechanism, the lighting inspection can be directly carried out, so that the product can be scanned and unloaded after visual inspection, and the transfer time can be fully utilized for inspection, which is not only conducive to improving production efficiency, but also conducive to miniaturization of equipment and saving space resources.

Description

Technical Field

[0001] The present invention relates to the technical field of product defect detection, and in particular to an AOI image inspection machine. Background Art

[0002] AOI image inspection machine is a machine for inspecting the screens of smart wearable electronic devices, including AOI optical inspection, pressing and lighting inspection, etc. It mainly detects dozens of defects such as point and line defects, group defects, MURA defects, etc. of the products, and has a learning function, which can optimize and improve the detection function by continuously collecting defect types.

[0003] At present, the common AOI image inspection machine's carrier generally carries the inspection product to the AOI optical inspection position and the pressing light inspection for inspection, and then moves the next product for inspection after the inspection. This not only causes waiting time for inspection, resulting in very low inspection efficiency, but also the equipment occupies a large space. Therefore, the industry urgently needs a solution that can solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an AOI image inspection machine to address the deficiencies of the prior art. The object of the present invention can be achieved through the following technical solution.

[0005] An AOI image inspection machine comprises a machine platform, a visual inspection mechanism, a transfer mechanism, a lighting inspection mechanism, a code scanning mechanism and a material unloading mechanism, wherein the transfer mechanism is fixedly arranged on the machine platform, the lighting inspection mechanism is installed on the transfer mechanism, the visual inspection mechanism is arranged on the machine platform across the transfer mechanism, the code scanning mechanism is arranged beside the transfer mechanism, the material unloading mechanism is arranged on the machine platform, and the material unloading mechanism transfers the product output from the transfer mechanism to the code scanning mechanism for code scanning and unloading.

[0006] Preferably, the transfer mechanism includes two mobile modules and two jig assemblies, the two mobile modules are arranged side by side, the two jig assemblies are respectively slidably connected to the mobile modules, the two jig assemblies are staggered up and down, and the two jig assemblies move back and forth in opposite directions, and the lighting detection mechanism is provided on both jig assemblies.

[0007] Preferably, the fixture assembly includes a sliding plate, a height adjustment component, a supporting plate and a detection platform, the sliding plate is slidably connected to the mobile module, the height adjustment component is mounted on the sliding plate, the supporting plate is mounted on the height adjustment component, and the detection platform is fixed on the supporting plate and is arranged corresponding to the lighting detection mechanism.

[0008] Preferably, the height adjustment component includes an adjustment carrier plate, an adjustment cylinder, an adjustment linear slide rail, an adjustment slider and a plurality of oil pressure buffers, the adjustment linear slide rail is longitudinally arranged on the sliding plate, the adjustment slider is slidably connected to the adjustment linear slide rail, the adjustment carrier plate is fixed on the adjustment slider, the adjustment cylinder is fixed on the sliding plate and pushes the adjustment carrier plate to move, the bearing plate is fixed on the adjustment carrier plate, and the oil pressure buffer is fixed on the sliding plate and is located below the adjustment carrier plate.

[0009] Preferably, the lighting detection mechanism includes a lighting test box and a needle mold, the lighting test box and the needle mold are both fixed on the fixture assembly, the lighting test box and the needle mold are electrically connected, the needle mold includes a needle mold base plate, a needle mold connecting platform, a pressure block, a pressure block mounting seat, a pressure block holder and a pressure block fastener, the needle mold base plate is fixed on the fixture assembly, the needle mold connecting platform is fixed on the needle mold base plate, the pressure block holder is fixed on the needle mold base plate and is located beside the needle mold connecting platform, the pressure block is rotatably connected to the pressure block mounting seat, the pressure block holder is fixed on the needle mold base plate and is located beside the needle mold connecting platform, the pressure block fastener is rotatably connected to the pressure block holder, and the pressure block is provided with a clamping position matching the pressure block fastener.

[0010] Preferably, the visual inspection mechanism includes a visual inspection frame, a main camera assembly, a flash camera assembly and multiple side camera assemblies. The main camera assembly is installed in the middle of the top surface of the visual inspection frame, the flash camera assembly is installed on the top surface of the visual inspection frame opposite to the main camera assembly, and the side camera assemblies are installed on the front side, rear side, left side and right side of the visual inspection frame.

[0011] Preferably, the unloading mechanism includes two unloading components, which are respectively arranged in the X direction and the Y direction. The unloading components include a unloading base, an unloading guide rail, an unloading slider, an unloading servo motor, an unloading cylinder and an adsorption component. The unloading guide rail is fixed on the unloading base, the unloading slider is slidably connected to the unloading guide rail, the unloading servo motor drives the unloading slider to move on the unloading guide rail, the unloading cylinder is fixed on the unloading slider, and the adsorption component is installed on the driving shaft of the unloading cylinder.

[0012] Preferably, the code scanning mechanism comprises a transfer platform, a first code scanning component and a second code scanning component, and the first code scanning component and the second code scanning component are respectively arranged on both sides of the transfer platform.

[0013] Preferably, a light sensing detection mechanism is further included, and the light sensing detection mechanism is located at the rear side of the visual detection mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention has developed an AOI image inspection machine, which can directly perform lighting inspection when the product is placed on the transfer mechanism, so that the product can be scanned and unloaded after visual inspection, and the transfer time can be fully utilized for inspection, which is not only beneficial to improving production efficiency, but also beneficial to miniaturization of equipment and saving space resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the AOI image inspection machine in an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the transfer mechanism and the lighting detection mechanism in the embodiment of the present invention.

[0018] Figure 3 for Figure 2 A partial enlarged view of part A.

[0019] Figure 4 Schematic diagram of the structure of the needle module in the embodiment of the present invention.

[0020] Figure 5 Schematic diagram of the structure of the visual detection mechanism in an embodiment of the present invention.

[0021] Figure 6 Schematic diagram of the structure of the feeding mechanism in the embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the structure of the code scanning mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

[0024] An AOI image inspection machine, such as Figure 1As shown, it includes a machine 1, a visual inspection mechanism 4, a transfer mechanism 2, a lighting inspection mechanism 3, a code scanning mechanism 6 and a material unloading mechanism 5. The transfer mechanism 2 is fixedly arranged on the machine 1 so that the transfer route will not be changed at will, ensuring that the product can be smoothly transferred to the predetermined position for inspection. The lighting inspection mechanism 3 is installed on the transfer mechanism 2, and the lighting inspection can be directly performed when the product is placed on the transfer mechanism 2. The visual inspection mechanism 4 is arranged on the machine 1 across the transfer mechanism 2, and is used to perform AOI visual inspection on the product placed on the transfer mechanism 2. The code scanning mechanism 6 is arranged on the side of the transfer mechanism 2, which is convenient for scanning the product that has been transferred by the transfer mechanism 2 to complete the AOI visual inspection. The material unloading mechanism 5 is arranged on the machine 1, and the material unloading mechanism 5 transfers the product output from the transfer mechanism 2 to the code scanning mechanism 6 for scanning and unloading.

[0025] Specifically, Figure 1 As shown, when working, the product is first placed on the transfer mechanism 2, and the transfer mechanism 2 transfers the product to the visual inspection mechanism 4 for AOI visual inspection, and then transfers it out for the unloading mechanism 5 to clamp and send it to the scanning mechanism 6 for scanning and then output. At the same time, since the lighting detection mechanism 3 is set corresponding to the position of the product placed on the transfer mechanism 2, when the product is placed on the transfer mechanism 2, it can be connected with the lighting detection mechanism 3, and the time of product transfer can be fully utilized to perform lighting testing, which is not only conducive to improving production efficiency, but also reduces the space position occupied by the lighting mechanism on the machine 1, which is conducive to miniaturization of equipment and saving space resources.

[0026] An AOI image inspection machine provided in this embodiment is as follows: Figure 2As shown, the transfer mechanism 2 includes two mobile modules 21 and two fixture assemblies 22. The two mobile modules 21 are arranged side by side, and the two fixture assemblies 22 are respectively slidably connected to the mobile modules 21. The two fixture assemblies 22 are staggered up and down to ensure that the two fixture assemblies 22 do not interfere with each other. And the two fixture assemblies 22 move back and forth in opposite directions, so that when the product on one fixture assembly 22 is sent out after inspection, the other fixture assembly 22 is moved to the AOI inspection position, ensuring that the two fixture assemblies 22 are closely matched, reducing the waiting time for alternating product inspections. The lighting detection mechanism 3 is provided on both of the two fixture assemblies 22, and the product lighting detection can be directly started when the product is placed on the fixture assembly 22. When transferring a product for AOI inspection, the product is first placed on a jig assembly 22, and the jig assembly 22 is transferred toward the AOI inspection position. During the AOI inspection process, the next product can be placed on another jig assembly 22. After the previous product completes the inspection, it is sent out along with the jig assembly 22 at its position. At the same time, the next product is transferred toward the AOI inspection position along with another jig assembly 22. In this way, the two jig assemblies 22 are transferred in reverse to allow the replacement process of the two products to be closely coordinated, thereby reducing the waiting time for alternating product inspections and improving production efficiency.

[0027] An AOI image inspection machine provided in this embodiment is as follows: Figure 3 As shown, the fixture assembly 22 includes a sliding plate 221, a height adjustment component 222, a bearing plate 223 and a detection table 224, wherein the sliding plate 221 is slidably connected to the mobile module 21, the height adjustment component 222 is mounted on the sliding plate 221, the bearing plate 223 is mounted on the height adjustment component 222, and the detection table 224 is fixed on the bearing plate 223 and is arranged corresponding to the lighting detection mechanism 3. The bearing plate 223 plays a bearing role, and the height adjustment component 222 can adjust the height position of the bearing plate 223, thereby adjusting the height position of the entire fixture assembly 22, so that the two fixture assemblies 22 can be set to different heights, and can also be adjusted according to different product thicknesses to avoid interference between the two fixture assemblies 22. When the product is placed on the detection table 224, it can contact the lighting detection component for lighting test, and it is also convenient for the sliding plate 221 to slide on the mobile module 21 and drive the product on the detection table 224 to be sent to AOI inspection.

[0028] An AOI image inspection machine provided in this embodiment is as follows: Figure 3As shown, the height adjustment component 222 includes an adjustment carrier plate 2221, an adjustment cylinder 2224, an adjustment linear guide rail 2225, an adjustment slider 2223 and a plurality of oil pressure buffers 2222. The adjustment linear guide rail 2225 is longitudinally arranged on the sliding plate 221. The adjustment slider 2223 is slidably connected to the adjustment linear guide rail 2225. The adjustment carrier plate 2221 is fixed on the adjustment slider 2223. The adjustment cylinder 2224 is fixed on the sliding plate 221 and pushes the adjustment carrier plate 2221 to move. The carrier plate 223 is fixed on the adjustment carrier plate 2221. When the height is adjusted, the adjustment cylinder 2224 pushes the adjustment carrier plate 2221 to move upward or downward. When the adjustment carrier plate 2221 moves, the adjustment slider 2223 also moves along the adjustment linear guide rail 2225, thereby playing a guiding role to ensure that the adjustment carrier plate 2221 moves along the predetermined track direction to avoid deviation. The oil pressure buffer 2222 is fixed on the sliding plate 221 and is located below the adjusting carrier plate 2221 . The oil pressure buffer 2222 can play a buffering role for the adjusting carrier plate 2221 .

[0029] An AOI image inspection machine provided in this embodiment is as follows: Figure 3 As shown, the lighting detection mechanism 3 includes a lighting test box 32 and a needle mold 31, both of which are fixed on the fixture assembly 22, and the lighting test box 32 and the needle mold 31 are electrically connected. The needle mold 31 contacts the product placed on the test table 224, so that the product is connected to the lighting test box 32 for lighting detection. Figure 4 As shown, the needle mold component 31 includes a needle mold base plate 311, a needle mold connecting platform 312, a pressure block 313, a pressure block mounting seat 314, a pressure block clamping seat 315 and a pressure block fastener 316. The needle mold base plate 311 is fixed on the fixture assembly 22, the needle mold connecting platform 312 is fixed on the needle mold base plate 311, the pressure block clamping seat 315 is fixed on the needle mold base plate 311 and is located beside the needle mold connecting platform 312, the pressure block 313 is rotatably connected to the pressure block mounting seat 314, the pressure block clamping seat 315 is fixed on the needle mold base plate 311 and is located beside the needle mold connecting platform 312, the pressure block fastener 316 is rotatably connected to the pressure block clamping seat 315, and the pressure block 313 is provided with a clamping position matching the pressure block fastener 316. When performing a lighting test, the pressing block 313 can be flipped so that it presses the contact point between the needle mold 31 and the product. The pressing block fastener 316 locks the pressing block 313. The pressing block 313 becomes loose, resulting in poor contact between the needle mold 31 and the product, thereby affecting the quality of the lighting test. The pressing block 313 is opened after the test is completed.

[0030] An AOI image inspection machine provided in this embodiment is as follows: Figure 5As shown, the visual inspection mechanism 4 includes a visual inspection frame 41, a main camera assembly 43, a flash camera assembly 42 and multiple side camera assemblies 44. The main camera assembly 43 is installed in the middle of the top surface of the visual inspection frame 41, the flash camera assembly 42 is installed on the top surface of the visual inspection frame 41 and is arranged opposite to the main camera assembly 43. The side camera assemblies 44 are installed on the front side, rear side, left side and right side of the visual inspection frame 41, so that AOI visual inspection can be performed on the product from all directions to ensure comprehensive inspection of the product.

[0031] An AOI image inspection machine provided in this embodiment is as follows: Figure 6 As shown, the unloading mechanism 5 includes two unloading components 51, and the two unloading components 51 are respectively arranged in the X direction and the Y direction. The unloading platform arranged in the X direction is used to transfer the products that have completed the inspection to the code scanning mechanism 6, and the unloading platform arranged in the Y direction is used to transfer the products on the code scanning mechanism 6 to the predetermined unloading position. The unloading assembly 51 includes an unloading base 515, an unloading guide rail 512, an unloading slider 513, an unloading servo motor 511, an unloading cylinder 514 and an adsorption component 516. The unloading guide rail 512 is fixed on the unloading base 515, the unloading slider 513 is slidably connected to the unloading guide rail 512, the unloading servo motor 511 drives the unloading slider 513 to move on the unloading guide rail 512, the unloading cylinder 514 is fixed on the unloading slider 513 to move with the unloading slider 513, and the adsorption component 516 is installed on the driving shaft of the unloading cylinder 514, and the upper and lower adsorption positions of the adsorption component 516 can be adjusted by the unloading cylinder 514.

[0032] An AOI image inspection machine provided in this embodiment is as follows: Figure 7 As shown, the code scanning mechanism 6 includes a transfer platform 61, a first code scanning component 62 and a second code scanning component 63. The first code scanning component 62 and the second code scanning component 63 are respectively arranged on both sides of the transfer platform 61. The first code scanning component 62 and the second code scanning component 63 can be the same code scanning component, which is convenient for simultaneous scanning and speeding up the scanning rate. They can also be code scanning components suitable for different products. The transfer platform 61 is used to temporarily store the products that have been inspected. The transfer platform 61 can rotate the products that have been inspected into different directions to distinguish qualified products from defective products.

[0033] An AOI image inspection machine provided in this embodiment is as follows: Figure 1 As shown, it also includes a light detection mechanism 7, which is located at the rear side of the visual detection mechanism 4. The light detection mechanism irradiates natural light on the products that have completed the AOI visual inspection to re-inspect whether they comply with regulations.

[0034] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An AOI image inspection machine, characterized in that: It includes a machine platform, a visual inspection mechanism, a transfer mechanism, a lighting inspection mechanism, a code scanning mechanism and a material unloading mechanism. The transfer mechanism is fixedly arranged on the machine platform, the lighting inspection mechanism is installed on the transfer mechanism, the visual inspection mechanism is arranged on the machine platform across the transfer mechanism, the code scanning mechanism is arranged beside the transfer mechanism, the material unloading mechanism is arranged on the machine platform, and the material unloading mechanism transfers the product output from the transfer mechanism to the code scanning mechanism for code scanning and unloading; The transfer mechanism includes two mobile modules and two fixture assemblies, the two mobile modules are arranged side by side, the two fixture assemblies are respectively slidably connected to the mobile modules, the two fixture assemblies are staggered up and down, and the two fixture assemblies move back and forth in opposite directions, and the lighting detection mechanism is provided on the two fixture assemblies; The fixture assembly includes a sliding plate, a height adjustment component, a bearing plate and a detection platform, the sliding plate is slidably connected to the moving module, the height adjustment component is mounted on the sliding plate, the bearing plate is mounted on the height adjustment component, and the detection platform is fixed on the bearing plate and is arranged corresponding to the lighting detection mechanism; The height adjustment component includes an adjustment carrier plate, an adjustment cylinder, an adjustment linear slide rail, an adjustment slider and a plurality of oil pressure buffers, wherein the adjustment linear slide rail is longitudinally arranged on the sliding plate, the adjustment slider is slidably connected to the adjustment linear slide rail, the adjustment carrier plate is fixed on the adjustment slider, the adjustment cylinder is fixed on the sliding plate and pushes the adjustment carrier plate to move, the bearing plate is fixed on the adjustment carrier plate, and the oil pressure buffer is fixed on the sliding plate and is located below the adjustment carrier plate; The unloading mechanism includes two unloading components, which are respectively arranged in the X direction and the Y direction. The unloading components include an unloading base, an unloading guide rail, an unloading slider, an unloading servo motor, an unloading cylinder and an adsorbent. The unloading guide rail is fixed on the unloading base, the unloading slider is slidably connected with the unloading guide rail, the unloading servo motor drives the unloading slider to move on the unloading guide rail, the unloading cylinder is fixed on the unloading slider, and the adsorbent is installed on the driving shaft of the unloading cylinder; The code scanning mechanism includes a transfer platform, a first code scanning component and a second code scanning component, and the first code scanning component and the second code scanning component are respectively arranged on both sides of the transfer platform.

2. The AOI image inspection machine according to claim 1, characterized in that: The lighting detection mechanism includes a lighting test box and a needle mold, the lighting test box and the needle mold are both fixed on the fixture assembly, the lighting test box and the needle mold are electrically connected, the needle mold includes a needle mold base plate, a needle mold connecting platform, a pressure block, a pressure block mounting seat, a pressure block holder and a pressure block fastener, the needle mold base plate is fixed on the fixture assembly, the needle mold connecting platform is fixed on the needle mold base plate, the pressure block holder is fixed on the needle mold base plate and is located next to the needle mold connecting platform, the pressure block is rotatably connected to the pressure block mounting seat, the pressure block holder is fixed on the needle mold base plate and is located next to the needle mold connecting platform, the pressure block fastener is rotatably connected to the pressure block holder, and the pressure block is provided with a clamping position matching the pressure block fastener.

3. The AOI image inspection machine according to claim 1, characterized in that: The visual inspection mechanism includes a visual inspection frame, a main camera assembly, a flash camera assembly and multiple side camera assemblies. The main camera assembly is installed in the middle of the top surface of the visual inspection frame, the flash camera assembly is installed on the top surface of the visual inspection frame and is arranged opposite to the main camera assembly. The side camera assemblies are installed on the front side, rear side, left side and right side of the visual inspection frame.

4. The AOI image inspection machine according to claim 1, characterized in that: It also includes a light sensing detection mechanism, which is located at the rear side of the visual detection mechanism.

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