An automatic vision inspection machine

Abstract

The utility model relates to visual inspection technical field, concretely relates to a kind of automatic visual inspection machine, including rack and the indexing disc rotationally installed on rack, the periphery of the indexing disc is respectively provided with multiple sets of detection station and a set of mobile manipulator, the side fixed mounting of the rack is used to support the bracket of mobile manipulator, the bottom end fixed mounting of the indexing disc is bottom disc, the bottom end of the bottom disc is provided with intermittent mechanism, intermittent mechanism is used to drive indexing disc intermittent rotation, sequentially corresponding with multiple sets of detection station and a set of mobile manipulator in rotation process. The product to be detected is grabbed to indexing disc by mobile manipulator, indexing disc rotates, 90 ° is sequentially rotated using intermittent mechanism to drive indexing disc, respectively turns to multiple detection stations, detects burr, multiple materials, aperture, distance, avoids the force and vibration generated by manipulator to place product as a whole, guarantees the stability of platform, it is convenient to obtain more clear, image without jitter.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection technology, and in particular to an automatic visual inspection machine. Background Technology

[0002] In the manufacturing process of automotive parts, automatic vision inspection machines are used to inspect the parts. A robotic arm picks up the product to be inspected and places it at the indexing plate inspection station. The indexing plate rotates and moves to the first inspection station to inspect for burrs, excess material, hole diameter, and distance. After inspection, the second inspection station performs a 3D line scan to inspect the flatness of the product. The product is then moved to the judgment station, where the data packets from the first two inspection stations are judged. The robotic arm then places products with different results into different channels.

[0003] In the prior art, such as the patent with publication number CN220340033U, a rotary multi-station visual inspection machine is disclosed, including a bracket, a lifting assembly, the lifting assembly being disposed on the bracket, a CCD visual camera, the CCD visual camera being connected to the lifting assembly, a transmission assembly, the transmission assembly being disposed on the bracket, a turntable, the turntable being located on the bracket and connected to the transmission assembly, a plurality of supports being disposed on the turntable, the CCD visual camera being located above the turntable, and the shooting direction of the CCD visual camera corresponding to one of the supports.

[0004] The above structure uses a transmission assembly to rotate the drive turntable. However, when the indexing plate rotates, it needs to be inspected by different inspection stations in sequence, but it cannot rotate intermittently, resulting in poor image quality. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an automatic visual inspection machine to solve the problem that when the indexing plate rotates, it needs to be inspected by different inspection stations in sequence, but the rotation cannot be intermittent, resulting in poor image quality.

[0006] To achieve the above objectives, this utility model provides an automatic visual inspection machine, including a frame and an indexing plate rotatably mounted on the frame. Multiple inspection stations and a set of mobile robotic arms are respectively arranged around the indexing plate. A bracket for supporting the mobile robotic arms is fixedly installed on one side of the frame. Multiple inspection stations are all installed on the frame.

[0007] A chassis is fixedly installed at the bottom of the indexing plate, and an intermittent mechanism is provided at the bottom of the chassis. The intermittent mechanism is used to drive the indexing plate to rotate intermittently, and during the rotation, it corresponds to multiple sets of inspection stations and a set of mobile robotic arms in sequence.

[0008] Preferably, the intermittent mechanism includes a servo motor fixedly installed inside the frame, a large gear fixedly connected to the output end of the servo motor, a small gear meshing with the outside of the large gear, a lever fixedly installed on one side of the small gear, and a cylindrical head fixedly installed at the end of the lever.

[0009] The bottom of the chassis has a ring array of multiple sets of movable slots, which are located within the rotation radius of the cylindrical head.

[0010] Preferably, a sector-shaped block is fixedly installed at the end of the lever, and multiple sets of buffer blocks corresponding to the sector-shaped block are fixedly installed at the bottom of the chassis.

[0011] Preferably, there are at least four sets of buffer blocks and movable slots, and the buffer blocks and movable slots are staggered. The buffer blocks are provided with magnetic suction components inside.

[0012] Preferably, the chassis and the large gear are arranged parallel to each other vertically, and the chassis and the indexing plate are components of the same diameter.

[0013] Preferably, the multiple sets of testing stations are equidistantly distributed outside the indexing plate.

[0014] The beneficial effects of this utility model are:

[0015] The mobile robotic arm picks up the product to be inspected and places it onto the indexing plate. The indexing plate rotates, and an intermittent mechanism drives it to rotate 90° sequentially, moving it to multiple inspection stations to inspect for burrs, excess material, pore size, and distance. Finally, it moves back to the mobile robotic arm, which then places products with different results into different channels. This process avoids the force and vibration generated by the robotic arm when placing products, ensuring the stability of the platform and facilitating the acquisition of clearer, shake-free images. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the overall semi-sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the planar structure of the intermittent mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the chassis of this utility model.

[0021] The markings in the diagram are as follows: 1. Frame; 2. Inspection station; 3. Indexing plate; 4. Moving robot; 5. Chassis; 6. Support; 7. Intermittent mechanism; 8. Movable slot; 9. Large gear; 10. Small gear; 11. Servo motor; 12. Lever; 13. Cylindrical head; 14. Sector block; 15. Buffer block; 16. Magnetic suction component. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an automatic vision inspection machine includes a frame 1 and an indexing plate 3 rotatably mounted on the frame 1. Multiple inspection stations 2 and a set of mobile robotic arms 4 are respectively arranged around the indexing plate 3. A bracket 6 for supporting the mobile robotic arms 4 is fixedly installed on one side of the frame 1. Multiple inspection stations 2 are all installed on the frame 1.

[0024] The bottom of the indexing plate 3 is fixedly mounted with a chassis 5. The bottom of the chassis 5 is provided with an intermittent mechanism 7. The intermittent mechanism 7 is used to drive the indexing plate 3 to rotate intermittently. During the rotation, it corresponds to multiple sets of inspection stations 2 and a set of mobile robotic arms 4 in sequence.

[0025] Among them, multiple testing stations 2 are equidistantly distributed outside the indexing plate 3.

[0026] In this embodiment, the mobile robotic arm 4 picks up the product to be inspected and places it onto the indexing plate 3. The indexing plate 3 rotates, and the intermittent mechanism 7 drives the indexing plate 3 to rotate 90°, moving it to the first inspection station 2 to inspect for burrs, excess material, hole diameter, and distance. After inspection, the 3D line scan at the second inspection station 2 performs a line scan inspection of the product's flatness. The product then moves to the third inspection station 2 to judge the data packets completed by the first two stations. Finally, the product is moved back to the mobile robotic arm 4, where the robotic arm places products with different results into different channels. This avoids the force and vibration generated by the robotic arm placing the product, ensuring the stability of the platform and facilitating the acquisition of clearer, shake-free images.

[0027] As one implementation method, such as Figure 2 , Figure 3 and Figure 4As shown, the intermittent mechanism 7 includes a servo motor 11 fixedly installed inside the frame 1. A large gear 9 is fixedly connected to the output end of the servo motor 11. A small gear 10 meshes with the outside of the large gear 9. A lever 12 is fixedly installed on one side of the small gear 10. A cylindrical head 13 is fixedly installed at the end of the lever 12.

[0028] The bottom of the chassis 5 has a ring array of multiple movable slots 8, which are located within the rotation radius of the cylindrical head 13.

[0029] In this embodiment, the servo motor 11 drives the large gear 9 to rotate. When the large gear 9 rotates, it drives the small gear 10 to rotate. When the small gear 10 rotates, it drives the lever 12 and the cylindrical head 13 to rotate. When the lever 12 rotates, the cylindrical head 13 enters the range of the movable groove 8, driving the chassis 5 to rotate 90°. At the same work station, multiple cameras at different angles or the angle of the light source can be triggered to take pictures by using the pause time, which can perform more complex operations.

[0030] As one implementation method, such as Figure 2 and Figure 3 As shown, a sector block 14 is fixedly installed at the end of the lever 12, and multiple sets of buffer blocks 15 corresponding to the sector block 14 are fixedly installed at the bottom of the chassis 5.

[0031] In this embodiment, the sector block 14 at one end of the lever 12 enters the area of ​​the buffer block 15, and the magnetic attraction component 16 inside the buffer block 15 generates an attraction force on the sector block 14, which improves the stability of the indexing plate 3 when it stops rotating, reduces the inertia generated by rotation, and reduces the peak acceleration and deceleration when the indexing plate 3 stops positioning.

[0032] As one implementation method, such as Figure 3 and Figure 4 As shown, there are at least four sets of buffer blocks 15 and movable slots 8, and the buffer blocks 15 and movable slots 8 are staggered. Magnetic suction components 16 are provided inside the buffer blocks 15.

[0033] In this embodiment, when the lever 12 rotates, the cylindrical head 13 enters the range of the movable groove 8, driving the chassis 5 to rotate 90°. When the lever 12 is telescopic and the movable groove 8 is set to eight groups, the length of the lever 12 is reduced, and the angle that the chassis 5 can rotate each time is changed to 45°. The rotation angle of the indexing plate 3 can be changed according to the actual number of testing stations 2.

[0034] As one implementation method, such as Figure 2 and Figure 3 As shown, the chassis 5 and the large gear 9 are arranged in parallel, and the chassis 5 and the indexing plate 3 are components of the same diameter.

[0035] In this embodiment, the rotation of the large gear 9 drives the rotation of the small gear 10, which in turn rotates the chassis 5, completing the intermittent rotation of the indexing plate 3. This improves the detection station 2 by obtaining clear, vibration-free images and making the positioning accuracy more precise.

[0036] Working principle: During use, the mobile robotic arm 4 picks up the product to be inspected and places it onto the indexing plate 3. The indexing plate 3 rotates, and the servo motor 11 drives the large gear 9 to rotate. When the large gear 9 rotates, it drives the small gear 10 to rotate. When the small gear 10 rotates, it drives the lever 12 and the cylindrical head 13 to rotate. When the lever 12 rotates, the cylindrical head 13 enters the range of the movable groove 8, causing the chassis 5 to rotate 90°. The sector block 14 at one end of the lever 12 enters the area of ​​the buffer block 15. The magnetic suction component 16 inside the buffer block 15 generates a suction force on the sector block 14, avoiding the force and vibration generated by the robotic arm placing the product, ensuring the stability of the platform, and making it easier to obtain clearer, shake-free images.

[0037] The intermittent mechanism 7 drives the indexing plate 3 to rotate 90°, moving it to the first inspection station 2 to inspect for burrs, excess material, hole diameter, and distance. After inspection, the 3D line scan at the second inspection station 2 performs a line scan inspection of the product's flatness. The product then moves to the third inspection station 2 to judge the data packets from the previous two stations. Finally, the product is moved back to the mobile robot arm 4, where the robot arm places products with different results into different channels.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic visual inspection machine, comprising a frame (1) and an indexing plate (3) rotatably mounted on the frame (1), wherein multiple inspection stations (2) and a set of mobile robotic arms (4) are respectively arranged around the indexing plate (3), and a bracket (6) for supporting the mobile robotic arms (4) is fixedly installed on one side of the frame (1), wherein the multiple inspection stations (2) are all mounted on the frame (1). Its characteristics are: The bottom end of the indexing plate (3) is fixedly mounted with a chassis (5), and the bottom end of the chassis (5) is provided with an intermittent mechanism (7). The intermittent mechanism (7) is used to drive the indexing plate (3) to rotate intermittently. During the rotation, it corresponds to multiple sets of inspection stations (2) and a set of mobile robotic arms (4) in sequence.

2. The automatic visual inspection machine according to claim 1, characterized in that, The intermittent mechanism (7) includes a servo motor (11) fixedly installed inside the frame (1). A large gear (9) is fixedly connected to the output end of the servo motor (11). A small gear (10) meshes with the outside of the large gear (9). A lever (12) is fixedly installed on one side of the small gear (10). A cylindrical head (13) is fixedly installed at the end of the lever (12). The bottom annular array of the chassis (5) has multiple sets of movable slots (8), which are located within the rotation radius of the cylindrical head (13).

3. An automatic visual inspection machine according to claim 2, characterized in that, A sector block (14) is fixedly installed at the end of the lever (12), and multiple sets of buffer blocks (15) corresponding to the sector block (14) are fixedly installed at the bottom of the chassis (5).

4. An automatic visual inspection machine according to claim 3, characterized in that, The buffer block (15) and the movable groove (8) are provided in at least four sets, and the buffer block (15) and the movable groove (8) are staggered. The buffer block (15) is provided with a magnetic suction element (16) inside.

5. An automatic visual inspection machine according to claim 2, characterized in that, The chassis (5) and the large gear (9) are arranged in parallel, and the chassis (5) and the indexing plate (3) are components of the same diameter.

6. An automatic visual inspection machine according to claim 1, characterized in that, The multiple testing stations (2) are all equidistantly distributed outside the indexing plate (3).

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