AOI (automatic optical inspection) equipment for indentation inspection

Abstract

The utility model relates to the technical field of automatic detection, in particular to an indentation inspection AOI device which comprises a machine table, a feeding conveying belt and a discharging conveying belt are arranged on the two sides of the machine table respectively, and two X-axis driving devices are arranged on the top of the machine table through a supporting frame. Driving parts of the two X-axis driving devices are provided with upper and lower material taking devices through Z-axis driving mechanisms, two line scanning platform devices are arranged on one sides of the X-axis driving devices, feeding positioning mechanisms are arranged on one sides of the line scanning platform devices in a sliding mode, and NG discharging conveying belts are arranged on the other sides of the line scanning platform devices; and a line scanning camera mechanism is arranged below the X-axis driving device. According to the AOI equipment for indentation inspection, streamline design of automatic feeding, automatic detection and automatic discharging can be achieved, unmanned operation is achieved in the whole process, the labor cost is effectively saved, the operation cost is saved, the problems existing in manual detection are avoided, and the high-speed and high-resolution detection requirements of the modern industry can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic detection, in particular to an AOI device for indentation inspection. Background Art

[0002] In the process of manufacturing electronic products, due to various reasons such as technology and materials, various indentation defects will inevitably occur during the IC attachment and FPC attachment processes, such as insufficient particle quantity, offset, foreign matter, and crack defects. These defects not only affect the performance of the products, but may even endanger life safety in severe cases, causing huge economic losses to users. Therefore, it is necessary to detect the indentation defects.

[0003] The traditional method for detecting indentation defects is manual visual inspection using a microscope. Currently, in many industries such as mobile phones and flat panel displays, there are still a large number of industrial workers engaged in this work. This manual visual inspection method needs to be carried out using a specific microscope, and the personnel need to continuously stare at the screen for inspection. This not only causes great harm to the eyes of the inspectors, but also has the disadvantages of strong subjectivity, limited resolution, great uncertainty in indentation detection, easy to produce ambiguity, and low efficiency, and it has been difficult to meet the high-speed and high-resolution detection requirements of modern industry. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an AOI device for indentation inspection, which solves the problems put forward in the above background art.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: an AOI device for indentation inspection, including a machine table. Feeding conveyors and discharging conveyors are respectively arranged on both sides of the machine table. Two X-axis driving devices are arranged on the top of the machine table through a support frame. The driving parts of the two X-axis driving devices are respectively provided with an up-and-down material taking device through a Z-axis driving mechanism. Two line scan platform devices are arranged on one side of the X-axis driving device. A feeding positioning mechanism is slidably arranged on one side of the line scan platform device. An NG discharging conveyor is arranged on the other side of the line scan platform device. A line scan camera mechanism is arranged at the position below the X-axis driving device.

[0006] Optionally, the up-and-down material taking device includes a mounting frame, a rotating motor, a rotating part, a nozzle mounting slide bar, and a material taking nozzle. A rotating motor is arranged on the top of the mounting frame. The driving end of the rotating motor is provided with a rotating part through a driving belt. A nozzle mounting slide bar is arranged at the bottom of the rotating part. The material taking nozzle is arranged on the nozzle mounting slide bar.

[0007] Optionally, the loading positioning mechanism includes a lead screw driving motor, a rough loading positioning camera, a moving block, a translation slide bar, and a loading alignment camera. The rough loading positioning camera is disposed on the top of the lead screw driving motor. The driving member of the lead screw driving motor is provided with the moving block. The translation slide bar is disposed on the top of the moving block. The loading alignment camera is slidably connected to the surface of the translation slide bar.

[0008] Optionally, the line scan platform device includes a first translation driving module and a translation placement table. The driving member of the first translation driving module is provided with the translation placement table.

[0009] Optionally, the line scan camera mechanism includes a second translation driving module, a Z-axis lifting module, a line scan camera, and a laser displacement sensing component. The driving member of the second translation driving module is provided with the Z-axis lifting module. The driving member of the Z-axis lifting module is provided with the line scan camera. The laser displacement sensing component is disposed on the top of the line scan camera.

[0010] Optionally, a material incoming interception mechanism is disposed on one end surface of the loading conveyor belt.

[0011] Optionally, a protective cover is disposed on the surface of the machine table. An air purification device is disposed on the top of the protective cover.

[0012] The present utility model provides an indentation inspection AOI device, which has the following beneficial effects:

[0013] 1. For this indentation inspection AOI device, through the settings of two X-axis driving devices and the up and down material taking device, the loading and unloading efficiency of the device is effectively improved, and automatic loading and unloading is realized. Through the cooperation of the line scan camera mechanism and the loading positioning mechanism with the settings of two line scan platform devices, the screen products are automatically inspected, effectively avoiding the disadvantages of great harm to the eyes of inspectors, strong subjectivity, limited resolution, large uncertainty in indentation detection, easy generation of ambiguity, and low efficiency in manual visual inspection. At the same time, the dual-platform alternating design of the two line scan platforms realizes high utilization rate of the camera and further improves the detection efficiency.

[0014] 2. This indentation inspection AOI device can realize the streamlined design of automatic loading, automatic detection, and automatic unloading, with no manual operation throughout the process, effectively saving labor costs, saving operating costs, and also avoiding the problems existing in manual inspection, and can meet the detection requirements of high speed and high resolution in modern industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic internal layout diagram of the present utility model;

[0017] Figure 3 Schematic diagram of the internal structure of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at position A in the present utility model;

[0019] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of the structure at position B in the present utility model;

[0020] Figure 6 For the present utility model Figure 3 Enlarged schematic diagram of the structure at position C in the present utility model;

[0021] Figure 7 Schematic diagram of the structure of the line scan camera mechanism of the present utility model.

[0022] In the figure: 1, machine platform; 2, loading conveyor belt; 3, unloading conveyor belt; 4, support frame; 5, X-axis drive device; 6, line scan camera mechanism; 601, second translation drive module; 602, Z-axis lifting module; 603, line scan camera; 604, laser displacement sensing component; 7, up and down material taking device; 701, mounting frame; 702, rotating motor; 703, rotating part; 704, nozzle mounting slide bar; 705, material taking nozzle; 8, loading positioning mechanism; 801, lead screw drive motor; 802, loading rough positioning camera; 803, moving block; 804, translation slide bar; 805, loading alignment camera; 9, line scan platform device; 901, first translation drive module; 902, translation placement table; 10, Z-axis drive mechanism; 11, NG unloading conveyor belt; 12, protective cover; 13, incoming material interception mechanism. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: an indentation inspection AOI device, including a machine platform 1, a protective cover 12 is arranged on the surface of the machine platform 1, an air purification device is arranged on the top of the protective cover to ensure the cleanliness of the products detected inside the device, a loading conveyor belt 2 and an unloading conveyor belt 3 are respectively arranged on both sides of the machine platform 1, and an incoming material interception mechanism 13 is arranged on one end surface of the loading conveyor belt 2 to facilitate the material taking nozzle 705 of the up and down material taking device 7 to suck the incoming material product;

[0025] On the top of the machine 1, there are two X-axis driving devices 5 arranged through the support frame 4. The driving parts of the two X-axis driving devices 5 are both provided with an up-and-down material taking device 7 through the Z-axis driving mechanism 10. The up-and-down material taking device 7 includes a mounting frame 701, a rotating motor 702, a rotating part 703, a nozzle mounting slide bar 704 and a material taking nozzle 705. A rotating motor 702 is arranged on the top of the mounting frame 701. By setting the rotating motor 702, it is convenient for this device to rotate the product angle and place the product flexibly. The driving end of the rotating motor 702 is provided with a rotating part 703 through a driving belt. A nozzle mounting slide bar 704 is arranged at the bottom of the rotating part 703. The material taking nozzle 705 is arranged on the nozzle mounting slide bar 704. The setting of the nozzle mounting slide bar 704 can facilitate the adjustment of the installation position of each material taking nozzle 705 according to products of different specifications to flexibly adapt to different products. At the same time, for the two up-and-down material taking devices 7, one is responsible for feeding and the other is responsible for discharging, which greatly improves the feeding and discharging efficiency of this equipment. Cooperating with the feeding conveyor belt 2 and the discharging conveyor belt 3 realizes automatic feeding and discharging;

[0026] On one side of the X-axis driving device 5, there are two line scan platform devices 9. The line scan platform device 9 includes a first translation driving module 901 and a translation placement table 902. The driving part of the first translation driving module 901 is provided with a translation placement table 902. The first translation driving module 901 cooperates with the translation placement table 902 to collect product images under the drive of a linear motor for line scan indentation detection. At the same time, the dual-platform alternating design realizes the high utilization rate of the line scan camera mechanism 6 and further improves the detection efficiency;

[0027] On one side of the line scan platform device 9, there is a feeding positioning mechanism 8 slidably arranged. The feeding positioning mechanism 8 includes a lead screw driving motor 801, a feeding rough positioning camera 802, a moving block 803, a translation slide bar 804 and a feeding alignment camera 805. The feeding rough positioning camera 802 is arranged on the top of the lead screw driving motor 801. The driving part of the lead screw driving motor 801 is provided with a moving block 803. The translation slide bar 804 is arranged on the top of the moving block 803. The feeding alignment camera 805 is slidably connected to the surface of the translation slide bar 804 to perform rough positioning and alignment detection on the product sucked by the up-and-down material taking device 7 to ensure the subsequent accurate placement of the material;

[0028] On the other side of the line scan platform device 9, there is an NG discharging conveyor belt 11. At the position below the X-axis driving device 5, there is a line scan camera mechanism 6. The line scan camera mechanism 6 includes a second translation driving module 601, a Z-axis lifting module 602, a line scan camera 603, and a laser displacement sensing component 604. The driving part of the second translation driving module 601 is provided with the Z-axis lifting module 602. The driving part of the Z-axis lifting module 602 is provided with the line scan camera 603. The top of the line scan camera 603 is provided with the laser displacement sensing component 604. The second translation driving module 601 and the Z-axis lifting module 602 drive the line scan camera 603 to detect the product in the X-axis and Z-axis directions, and the laser displacement sensing component 604 can ensure that it moves in place.

[0029] In the present utility model, the working steps of the device are as follows:

[0030] The screen product is loaded through the loading conveyor belt 2. When it reaches the end, the incoming material intercepting mechanism 13 intercepts it. One of the up-and-down material taking devices 7 sucks the incoming material and first performs rough positioning and alignment detection through the loading positioning mechanism 8;

[0031] Then it is placed on the two line scan platform devices 9. Then, the first translation driving module 901 drives the translation placement table 902 to translate the product to the line scan camera mechanism 6 for detection by the line scan camera 603;

[0032] When an NG product is detected, it is sucked by the other up-and-down material taking device 7 and placed on the NG discharging conveyor belt 11 for discharging. For qualified products, they are placed on the discharging conveyor belt 3 to complete detection and screening.

[0033] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An AOI device for indentation inspection, comprising a machine platform (1), characterized in that: A loading conveyor belt (2) and a unloading conveyor belt (3) are respectively arranged on both sides of the machine platform (1); two X-axis drive devices (5) are arranged on the top of the machine platform (1) through a support frame (4); the driving parts of the two X-axis drive devices (5) are both provided with an upper and lower material taking device (7) through a Z-axis drive mechanism (10); two line scanning platform devices (9) are arranged on one side of the X-axis drive device (5); a loading positioning mechanism (8) is slidably arranged on one side of the line scanning platform device (9); an NG unloading conveyor belt (11) is arranged on the other side of the line scanning platform device (9); and a line scanning camera mechanism (6) is arranged at a position below the X-axis drive device (5).

2. The indentation inspection AOI device according to claim 1, characterized in that: The upper and lower material taking device (7) comprises a mounting frame (701), a rotating motor (702), a rotating member (703), a suction nozzle mounting slide bar (704) and a material taking suction nozzle (705), wherein the rotating motor (702) is arranged on the top of the mounting frame (701), the rotating member (703) is arranged on the driving end of the rotating motor (702) via a driving belt, the suction nozzle mounting slide bar (704) is arranged on the bottom of the rotating member (703), and the material taking suction nozzle (705) is arranged on the suction nozzle mounting slide bar (704).

3. The indentation inspection AOI device according to claim 1, characterized in that: The feeding positioning mechanism (8) comprises a screw drive motor (801), a feeding rough positioning camera (802), a moving block (803), a translation slide bar (804) and a feeding alignment camera (805); the top of the screw drive motor (801) is provided with a feeding rough positioning camera (802); the driving member of the screw drive motor (801) is provided with a moving block (803); the top of the moving block (803) is provided with a translation slide bar (804); and the surface of the translation slide bar (804) is slidably connected to the feeding alignment camera (805).

4. The indentation inspection AOI device according to claim 1, characterized in that: The line scanning platform device (9) comprises a first translation driving module (901) and a translation placement table (902), wherein the driving component of the first translation driving module (901) is provided with the translation placement table (902).

5. The indentation inspection AOI device according to claim 1, characterized in that: The line scan camera mechanism (6) comprises a second translation drive module (601), a Z-axis lifting module (602), a line scan camera (603) and a laser displacement sensor assembly (604); the driving component of the second translation drive module (601) is provided with the Z-axis lifting module (602); the driving component of the Z-axis lifting module (602) is provided with the line scan camera (603); and the top of the line scan camera (603) is provided with the laser displacement sensor assembly (604).

6. The indentation inspection AOI device according to claim 1, characterized in that: One end surface of the loading conveyor belt (2) is provided with an incoming material intercepting mechanism (13).

7. The indentation inspection AOI device according to claim 1, characterized in that: The surface of the machine platform (1) is provided with a protective cover (12), and the top of the protective cover is provided with an air purification device.

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