Feeding device of AOI (automatic optical inspection) machine

Abstract

The utility model relates to the technical field of optical detection, and discloses an AOI automatic optical testing machine feeding device which comprises a conveyor, one end of the conveyor is fixedly connected with a support, the top end of the support is fixedly provided with a mechanical arm, one side of the surface of the conveyor is fixedly provided with a connecting frame, and the surface of the connecting frame is provided with a positioning assembly. A mounting frame is fixedly connected to the middle of the surface of the conveyor, and a dust brushing assembly is mounted on the surface of the mounting frame. The positioning assembly comprises a connecting frame, a first motor, a gear, two racks, two guide assemblies and two positioning plates. According to the automatic optical testing machine, the positioning assembly is arranged so that the products cannot deviate when being placed on the conveyor, smooth grabbing of the mechanical arm is guaranteed so that feeding can be conducted on the AOI automatic optical testing machine, dust on the surfaces of the products can be removed through the dust brushing assembly, interference to detection of the AOI automatic optical testing machine is prevented, and the judgment accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical testing technology, and in particular to a feeding device for an AOI automatic optical testing machine. Background Technology

[0002] AOI (Automated Optical Inspection) machines are devices that use optical imaging technology to automate the inspection of electronic products. Through high-precision cameras and algorithms, they quickly detect the position of components, soldering quality, and defects on products, and are widely used in the electronics manufacturing industry.

[0003] The loading process of AOI (Automated Optical Inspection) machines typically involves a conveyor transporting the product, followed by a robotic arm picking it up and placing it in the inspection area. However, existing AOI loading devices have shortcomings. First, they lack a structure to clean dust from the product surface, allowing adhering dust to interfere with the AOI's inspection and affect accuracy. Second, the lack of a positioning structure when placing the product on the conveyor makes it prone to misalignment, affecting the robotic arm's gripping ability and causing loading deviations. Therefore, this paper proposes a new AOI loading device to address these issues. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a feeding device for an AOI automatic optical testing machine, which aims to improve the existing feeding devices by addressing the lack of a dust-cleaning structure for the product surface and the lack of a positioning structure when the product is placed into the conveyor for transportation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an AOI automatic optical testing machine feeding device, including a conveyor, a bracket fixedly connected to one end of the conveyor, a robot arm fixedly installed at the top of the bracket, a connecting frame fixedly connected to one side of the surface of the conveyor, a positioning component installed on the surface of the connecting frame, an mounting frame fixedly connected to the middle of the surface of the conveyor, and a dust brushing component installed on the surface of the mounting frame.

[0006] The positioning assembly includes a connecting frame, a motor, a gear, two racks, two guide components, and two positioning plates. The motor is fixedly installed on the top of the connecting frame, and the output end of the motor passes through the connecting frame and is fixedly connected to the gear. Guide components are installed on both sides of the top of the inner wall of the connecting frame. A rack is connected to one side of each of the two guide components, and a positioning plate is fixedly connected to one side of the bottom end of each of the two racks.

[0007] As a further description of the above technical solution:

[0008] The dust removal assembly includes two electric push rods, a mounting base, a brush roller, and a dust removal component. The two electric push rods are respectively fixedly installed on both sides of the top of the mounting frame. The output ends of the two electric push rods pass through the mounting frame and are fixedly connected to the mounting base. The inner wall of the mounting base is rotatably connected to the brush roller through a bearing. The dust removal component is installed in the middle of the top of the mounting frame.

[0009] As a further description of the above technical solution:

[0010] One end of the mounting base is fixedly mounted with a second motor, and the output end of the second motor is fixedly connected to one end of the brush roller.

[0011] As a further description of the above technical solution:

[0012] The dust removal assembly includes a dust collection box, a fan, a suction head, and a filter. The dust collection box is fixedly connected to the middle of the top of the mounting frame. A suction head is fixedly connected to one side of the dust collection box, and a fan is fixedly installed on the other side of the dust collection box. A filter is engaged inside the dust collection box on one side.

[0013] As a further description of the above technical solution:

[0014] The input end of the fan is connected to the interior of the dust collection box.

[0015] As a further description of the above technical solution:

[0016] The guide assembly includes an inner rail and an outer rail. The inner rail is fixedly connected to one side of the top of the inner wall of the connecting frame. The outer rail is slidably connected to the surface of the inner rail, and one side of the outer rail is fixedly connected to a rack.

[0017] As a further description of the above technical solution:

[0018] The gear meshes with two racks on each side.

[0019] As a further description of the above technical solution:

[0020] A vacuum suction cup is installed at one end of the robotic arm.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, a dust brush assembly is installed on the conveyor. An electric push rod can be activated to drive the brush roller downwards, and then a second motor can be used to drive it to rotate. When the product passes by, the brush bristles can sweep off the dust on the product surface. During this process, a fan can be activated to collect the dust in a dust collection box, preventing the flying dust from affecting the swept product and the environment. This can prevent interference with the detection of the AOI automatic optical testing machine and improve the accuracy of the judgment.

[0023] In this invention, a positioning component is installed on the conveyor. The motor can be started to drive the gear to rotate. Under the guidance of the inner and outer rails, the racks on both sides can move in opposite directions. The distance between the two positioning plates can be adjusted according to the width of the product, so that the product will not shift when placed on the conveyor, ensuring that the robot can smoothly grasp the product for feeding the AOI automatic optical testing machine. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a feeding device for an AOI automatic optical testing machine proposed in this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the connecting frame of the feeding device for an AOI automatic optical testing machine proposed in this utility model;

[0026] Figure 3 This is a three-dimensional schematic diagram of the mounting frame of the feeding device for an AOI automatic optical testing machine proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the dust collection box of the feeding device for an AOI automatic optical testing machine proposed in this utility model.

[0028] Legend:

[0029] 1. Conveyor; 2. Support frame; 3. Robotic arm; 4. Vacuum suction cup; 5. Connecting frame; 6. Motor 1; 7. Gear; 8. Rack; 9. Outer rail; 10. Inner rail; 11. Positioning plate; 12. Mounting frame; 13. Electric push rod; 14. Mounting base; 15. Motor 2; 16. Brush roller; 17. Dust collection box; 18. Fan; 19. Dust suction head; 20. Filter screen. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3This utility model provides an embodiment of an AOI (Automated Optical Testing) machine feeding device, including a conveyor 1. The conveyor 1 can automatically transport products for testing. A bracket 2 is fixedly connected to one end of the conveyor 1 to provide additional installation space. A robot arm 3 is fixedly installed at the top of the bracket 2. The robot arm 3 can grab the products on the conveyor 1 and bring them to the testing area of ​​the optical testing machine. A connecting frame 5 is fixedly connected to one side of the surface of the conveyor 1. A positioning component is installed on the surface of the connecting frame 5 to prevent the products from shifting on the conveyor 1 and to ensure that the robot arm 3 can grab them smoothly. A mounting frame 12 is fixedly connected to the middle of the surface of the conveyor 1. A dust brushing component is installed on the surface of the mounting frame 12 to sweep away the dust on the surface of the products and avoid interference with the testing of the optical testing machine.

[0032] Reference Figure 2 The positioning assembly includes a connecting frame 5, a motor 6, a gear 7, two racks 8, two guide components, and two positioning plates 11. The motor 6 is fixedly installed on the top of the connecting frame 5. The motor 6 is used to drive and adjust the positioning assembly to suit the positioning of products of different widths. The output end of the motor 6 passes through the connecting frame 5 and is fixedly connected to the gear 7. After the motor 6 is started, it can drive the gear 7 to rotate. Guide components are installed on both sides of the top of the inner wall of the connecting frame 5. A rack 8 is connected to one side of each of the two guide components. The guide components support and guide the rack 8. A positioning plate 11 is fixedly connected to one side of the bottom of each of the two racks 8. The positioning plates 11 on both sides allow the product to be positioned on the conveyor 1, and one end of the positioning plate 11 is tilted outward, making it easier for the product to be positioned.

[0033] Reference Figure 3 The dust removal assembly includes two electric push rods 13, a mounting base 14, a brush roller 16, and a dust removal component. The two electric push rods 13 are fixedly installed on both sides of the top of the mounting frame 12. The output ends of the two electric push rods 13 pass through the mounting frame 12 and are fixedly connected to the mounting base 14. By activating the electric push rods 13, the mounting base 14 can be moved up and down. The inner wall of the mounting base 14 is rotatably connected to the brush roller 16 through a bearing. The brush roller 16 can be used to sweep the dust off the product surface to improve cleanliness. The dust removal component is installed in the middle of the top of the mounting frame 12 to collect the swept dust and prevent it from flying and affecting the swept product and the environment.

[0034] Reference Figure 3 One end of the mounting base 14 is fixedly mounted with a motor 15, and the output end of the motor 15 is fixedly connected to one end of the brush roller 16. After the motor 15 is started, it can drive the brush roller 16 to rotate, and the rotation direction is opposite to the product conveying direction, which can improve the brushing effect and effectively remove the dust attached to the product surface.

[0035] Reference Figure 4 The dust removal assembly includes a dust collection box 17, a fan 18, a suction head 19, and a filter 20. The dust collection box 17 is fixedly connected to the middle of the top of the mounting bracket 12. The dust collection box 17 is used to store dust and has a removable cover at the top to allow for cleaning of the dust inside the box. The suction head 19 is fixedly connected to one side of the dust collection box 17 to facilitate the concentrated suction of flying dust. The fan 18 is fixedly installed on the other side of the dust collection box 17 to attract flying dust. The filter 20 is snapped into one side inside the dust collection box 17. When dust passes through the dust collection box 17, it will be filtered and blocked and stored in the box.

[0036] Reference Figure 4 The input end of the fan 18 is connected to the inside of the dust collection box 17. After the fan 18 is started, it can attract the dust swept off the product surface into the dust collection box 17 for collection to prevent it from scattering.

[0037] Reference Figure 2 The guide assembly includes an inner rail 10 and an outer rail 9. The inner rail 10 is fixedly connected to one side of the top of the inner wall of the connecting frame 5. The outer rail 9 is slidably connected to the surface of the inner rail 10, and one side of the outer rail 9 is fixedly connected to the rack 8. The outer rail 9 can slide relative to the inner rail 10, so that the rack 8 can be driven to move longitudinally.

[0038] Reference Figure 2 The gear 7 meshes with two racks 8 on both sides, which serves as a transmission mechanism and can drive the racks 8 on both sides to move in opposite directions.

[0039] Reference Figure 2 The robotic arm 3 is equipped with a vacuum suction cup 4 at one end. The robotic arm 3 can quickly and stably grasp the product using the vacuum suction cup 4, and it is not easy to damage the product.

[0040] Working principle: The product to be inspected is placed on conveyor 1. A positioning component is installed on conveyor 1, which activates motor 6 to drive gear 7 to rotate. Guided by the inner rail 10 and outer rail 9, gears 8 on both sides move in opposite directions. The distance between the two positioning plates 11 can be adjusted according to the product width, ensuring the product does not shift when placed on conveyor 1 and allowing the robotic arm 3 to smoothly grasp and load the AOI automatic optical testing machine. A dust brushing component is installed on conveyor 1, which activates electric push rod 13 to move brush roller 16 downwards. Motor 2 15 then drives brush roller 16 to rotate in the opposite direction to the product conveying direction. As the product passes, the brush bristles sweep away dust from the product surface. During this process, fan 18 is activated, working with suction head 19 to attract dust. The dust is then filtered and trapped in dust collection box 17 by filter screen 20, preventing flying dust from affecting the swept product and the environment. This prevents interference with the AOI automatic optical testing machine's detection and improves the accuracy of the judgment.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An AOI automatic optical inspection machine feeding device, comprising a conveyor (1), characterized in that: One end of the conveyor (1) is fixedly connected to a bracket (2), a robot arm (3) is fixedly installed at the top of the bracket (2), a connecting frame (5) is fixedly connected to one side of the surface of the conveyor (1), a positioning component is installed on the surface of the connecting frame (5), a mounting frame (12) is fixedly connected to the middle of the surface of the conveyor (1), and a dust brushing component is installed on the surface of the mounting frame (12). The positioning assembly includes a connecting frame (5), a motor (6), a gear (7), two racks (8), two guide components, and two positioning plates (11). The motor (6) is fixedly installed on the top of the connecting frame (5). The output end of the motor (6) passes through the connecting frame (5) and is fixedly connected to the gear (7). Guide components are installed on both sides of the top of the inner wall of the connecting frame (5). A rack (8) is connected to one side of each of the two guide components. A positioning plate (11) is fixedly connected to one side of the bottom end of each of the two racks (8).

2. The AOI automatic optical testing machine feeding device according to claim 1, characterized in that: The dust removal assembly includes two electric push rods (13), a mounting base (14), a brush roller (16), and a dust removal component. The two electric push rods (13) are respectively fixedly installed on both sides of the top of the mounting frame (12). The output ends of the two electric push rods (13) pass through the mounting frame (12) and are fixedly connected to the mounting base (14). The inner wall of the mounting base (14) is rotatably connected to the brush roller (16) through a bearing. The dust removal component is installed in the middle of the top of the mounting frame (12).

3. The AOI automatic optical test machine feeding device according to claim 2, characterized in that: One end of the mounting base (14) is fixedly mounted with a second motor (15), and the output end of the second motor (15) is fixedly connected to one end of the brush roller (16).

4. The AOI automatic optical test machine feeding device according to claim 2, characterized in that: The dust removal assembly includes a dust collection box (17), a fan (18), a suction head (19), and a filter (20). The dust collection box (17) is fixedly connected to the middle of the top of the mounting bracket (12). The suction head (19) is fixedly connected to one side of the dust collection box (17), and the fan (18) is fixedly installed on the other side of the dust collection box (17). The filter (20) is snapped into one side inside the dust collection box (17).

5. The AOI automatic optical test machine feeding device according to claim 4, characterized in that: The input end of the fan (18) is connected to the interior of the dust collection box (17).

6. The AOI automatic optical test machine feeding device according to claim 1, characterized in that: The guide assembly includes an inner rail (10) and an outer rail (9). The inner rail (10) is fixedly connected to one side of the top of the inner wall of the connecting frame (5). The outer rail (9) is slidably connected to the surface of the inner rail (10), and one side of the outer rail (9) is fixedly connected to the rack (8).

7. The feeding device for an AOI automatic optical testing machine according to claim 1, characterized in that: The gear (7) meshes with two racks (8) on both sides respectively.

8. The AOI automatic optical test machine feeding device according to claim 1, characterized in that: A vacuum suction cup (4) is installed at one end of the robotic arm (3).

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