Visual inspection device

Abstract

The utility model discloses a visual detection device, and relates to the technical field of detection equipment. A visual detection device comprises a detection platform, a product carrying table, a first visual detection mechanism and a second visual detection mechanism, the product carrying table, the first visual detection mechanism and the second visual detection mechanism are arranged on the detection platform, the product carrying table is used for carrying a product, and the first visual detection mechanism is used for carrying out image collection on the side portion of the product; and the second visual inspection mechanism is used for carrying out image acquisition on a part between two adjacent sides of the product. According to the visual detection device, the structure is optimized, and the problem of low detection efficiency in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a vision detection device. Background Art

[0002] In order to ensure the quality of products, usually many products need to be subjected to appearance inspection during the production process to avoid appearance defects of the products.

[0003] At present, many enterprises use vision detection devices to replace manual visual inspection to improve the detection efficiency. In order to ensure the comprehensiveness of the appearance inspection of products, the existing vision detection devices often adopt a structural form in which vision cameras are separately arranged at multiple detection stations, and the appearance of multiple parts of the product is detected respectively through multiple detection stations. Although the above-mentioned vision detection device can realize the appearance inspection of multiple parts of the product, however, the product needs to be transferred through multiple detection stations, which seriously reduces the detection efficiency. Summary of the Utility Model

[0004] Aiming at the above-mentioned defects existing in the prior art, the utility model provides a vision detection device, which optimizes the structure and solves the problem of low detection efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A vision detection device includes a detection platform, as well as a product carrier, a first vision detection mechanism and a second vision detection mechanism arranged on the detection platform. The product carrier is used for carrying the product. The first vision detection mechanism is used for collecting images of the side part of the product. The second vision detection mechanism is used for collecting images of the part between two adjacent sides of the product.

[0007] Among them, there are four first vision detection mechanisms, and the four first vision detection mechanisms are respectively arranged on four sides of the product carrier, and the four first vision detection mechanisms correspond to the four side parts of the product one by one.

[0008] Among them, connection seats for linear sliding are respectively arranged at positions of the detection platform corresponding to the first vision detection mechanisms, and the first vision detection mechanisms are respectively arranged on the corresponding connection seats; a first driving mechanism connected to all the connection seats is further arranged on the detection platform, and the first driving mechanism is used for driving all the connection seats to reciprocate linearly synchronously so that the first vision detection mechanisms respectively move from one end of the corresponding side part of the product to the other end.

[0009] Wherein, a first mounting seat that linearly slides and a second driving mechanism connected to the first mounting seat are provided on the connecting seat. The first vision detection mechanism is arranged on the first mounting seat, and the second driving mechanism is used to drive the first mounting seat to reciprocate linearly so that the first vision detection mechanism approaches or moves away from the product.

[0010] Wherein, four second vision detection mechanisms are also provided. One second vision detection mechanism is arranged between every two adjacent first vision detection mechanisms. The part between two adjacent side parts of the product is a joint part, and the four second vision detection mechanisms correspond to the four joint parts one by one.

[0011] Wherein, second mounting seats that linearly slide are respectively arranged at positions of the detection platform corresponding to the second vision detection mechanisms, and the second vision detection mechanisms are respectively arranged on the corresponding second mounting seats; a third driving mechanism connected to all the second mounting seats is further arranged on the detection platform, and the third driving mechanism is used to drive all the second mounting seats to reciprocate linearly synchronously so that the second vision detection mechanisms approach or move away from the product.

[0012] Wherein, the first driving mechanism, the second driving mechanism and the third driving mechanism are all synchronous belt transmission mechanisms.

[0013] Wherein, both the first vision detection mechanism and the second vision detection mechanism include a base for installation, a vision camera arranged on the base, and an annular light source device. The light source device is located between the vision camera and the product stage.

[0014] Wherein, a product limiting mechanism that moves up and down is arranged on the product stage.

[0015] Wherein, the product limiting mechanism includes a driving part arranged on the side of the product stage and a limiting part arranged on the driving part. The driving part is used to drive the limiting part to move up and down, and the limiting part is used to limit two adjacent sides of the product.

[0016] Adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The visual inspection device provided by the present utility model includes an inspection platform, as well as a product carrier, a first visual inspection mechanism, and a second visual inspection mechanism disposed on the inspection platform. The product carrier is used to carry the product. The first visual inspection mechanism is used to collect images of the side of the product. The second visual inspection mechanism is used to collect images of the part between two adjacent sides of the product. Therefore, when performing visual inspection on the product, only the product needs to be placed on the product carrier, and the first visual inspection mechanism and the second visual inspection mechanism are respectively used to collect images of different parts of the product, so as to realize the appearance inspection of multiple parts of the product. Compared with the prior art, the visual inspection device of the present utility model optimizes the structure, eliminates the need for the product to be transferred to multiple inspection stations, and only one inspection station can realize the appearance inspection of multiple parts of the product, greatly improving the inspection efficiency and solving the problem of low inspection efficiency in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric view of the visual inspection device of the present utility model;

[0019] Figure 2 is a top view of the visual inspection device of the present utility model;

[0020] Figure 3 is Figure 1 an installation schematic diagram of the first visual inspection mechanism in

[0021] Figure 4 is Figure 3 a schematic diagram of the structure on the other side;

[0022] Figure 5 is Figure 1 an installation schematic diagram of the second visual inspection mechanism in

[0023] Figure 6 is Figure 1 a schematic diagram of the structure of the product carrier in

[0024] In the figure: 1, inspection platform; 2, product carrier; 3, connecting seat; 4, first slide rail; 5, connecting plate; 6, first synchronous belt; 7, first limit post; 8, first mounting seat; 9, second motor; 10, second synchronous belt; 11, second synchronous belt pulley; 12, second slide rail; 13, second limit post; 14, second mounting seat; 15, third synchronous belt; 16, third synchronous belt pulley; 17, third slide rail; 18, first base; 19, industrial camera; 20, industrial lens; 21, first light source device; 22, driving part; 23, limiting part; 24, lifting hook; 25, anchor bolt; 26, second base; 27, second light source device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1 to 6 shown, this embodiment discloses a vision detection device, which includes a detection platform 1, and a product carrier 2, a first vision detection mechanism and a second vision detection mechanism arranged on the detection platform 1. The product carrier 2 is used to carry a product (not shown in the figure). The first vision detection mechanism is used to collect images of the side of the product, and the second vision detection mechanism is used to collect images of the part between two adjacent sides of the product.

[0027] The vision detection device in this embodiment optimizes the structure. When performing vision detection on a product, only place the product on the product carrier 2, and collect images of different parts of the product through the first vision detection mechanism and the second vision detection mechanism respectively, so as to realize the appearance detection of multiple parts of the product. There is no need for the product to be transferred to multiple detection stations. Only one detection station can realize the appearance detection of multiple parts of the product, which greatly improves the detection efficiency and solves the problem of low detection efficiency in the prior art.

[0028] In this embodiment, there are four first vision detection mechanisms. The four first vision detection mechanisms are respectively arranged on the four sides of the product carrier 2, and the four first vision detection mechanisms correspond to the four sides of the product one by one. That is, two of the first vision detection mechanisms are arranged on the two sides in the X direction of the product carrier 2 for collecting images of the two sides in the X direction of the product; the other two first vision detection mechanisms are arranged on the two sides in the Y direction of the product carrier 2 for collecting images of the two sides in the Y direction of the product. With such a setting, the requirement for simultaneous vision detection of the four sides of the product is met. Of course, the number of the first vision detection mechanisms can be set according to actual needs, and this embodiment does not limit this.

[0029] In this embodiment, connection seats 3 that slide linearly are respectively arranged at the positions of the detection platform 1 corresponding to the respective first vision detection mechanisms, and the respective first vision detection mechanisms are respectively arranged on the corresponding connection seats 3; a first driving mechanism connected to all the connection seats 3 is also arranged on the detection platform 1. The first driving mechanism is used to drive all the connection seats 3 to reciprocate linearly synchronously so that the respective first vision detection mechanisms move from one end of the corresponding side of the product to the other end. With such a setting, it is convenient for the first vision detection mechanism to collect a complete image of the corresponding side of the product.

[0030] In this embodiment, the first driving mechanism is arranged below the detection platform 1. At the position of the detection platform 1 corresponding to the connecting seat 3, two parallel first sliding rails 4 and an avoidance hole extending in the same direction as the first sliding rails 4 are provided. The avoidance hole is located between the two first sliding rails 4. A connecting plate 5 is arranged below the connecting seat 3. The connecting seat 3 is arranged on the sliders of the two first sliding rails 4. The connecting plate 5 passes through the avoidance hole and is connected to the first driving mechanism. By arranging the connecting seat 3 on the first sliding rails 4, not only the friction between the connecting seat 3 and the detection platform 1 is reduced, but also the linearity of the movement of the first vision detection mechanism is ensured.

[0031] Since the synchronous belt transmission mechanism can achieve transmission with a relatively long center distance, has an accurate transmission ratio, no sliding during operation, high transmission efficiency, smooth transmission, can absorb vibration, low noise, and a wide range of applications, the first driving mechanism in this embodiment is preferably a synchronous belt transmission mechanism, specifically including first synchronous belt wheels (not shown in the figure) rotatably arranged at the four corners of the detection platform 1, a first synchronous belt 6 wound around the four first synchronous belt wheels, and a first motor (not shown in the figure) arranged on the detection platform 1 and used to drive one of the first synchronous belt wheels to rotate. The connecting plate 5 is connected to the first synchronous belt 6. Of course, the first driving mechanism can also adopt a chain transmission mechanism, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0032] In order to prevent the connecting seat 3 from moving out of position and ensure the stability of the vision detection device during operation, in this embodiment, first limiting columns 7 for sliding limit of the connecting seat 3 are respectively arranged on both sides of each connecting seat 3 on the detection platform 1.

[0033] In this embodiment, a first mounting seat 8 for linear sliding and a second driving mechanism connected to the first mounting seat 8 are arranged on the connecting seat 3. The first vision detection mechanism is arranged on the first mounting seat 8. The second driving mechanism is used to drive the first mounting seat 8 to reciprocate linearly so that the first vision detection mechanism approaches or moves away from the product. With such an arrangement, it is convenient for the first vision detection mechanism to focus on various products of different sizes, expanding the application range of the vision detection device.

[0034] In this embodiment, the second driving mechanism is also preferably a synchronous belt drive mechanism, which specifically includes a second motor 9, a second synchronous belt 10, and two second synchronous belt pulleys 11. The second motor 9 is arranged on the connecting seat 3. One of the second synchronous belt pulleys 11 is arranged on the rotating shaft of the second motor 9, and the other second synchronous belt pulley 11 is rotatably arranged on the connecting seat 3. The second synchronous belt 10 is wound around the two second synchronous belt pulleys 11. Two parallel second sliding rails 12 are also arranged on the connecting seat 3. The two second sliding rails 12 are arranged on the opposite sides of the second synchronous belt 10. The first mounting seat 8 is arranged on the sliders of the two second sliding rails 12 and is connected to the second synchronous belt 10 between the two second synchronous belt pulleys 11. Of course, the second driving mechanism can also adopt a chain drive mechanism, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0035] Similarly, in order to prevent the first mounting seat 8 from moving out of position and ensure the stability of the vision detection device during operation, two second limit posts 13 for sliding limit of the first mounting seat 8 are arranged on the connecting seat 3. The two second limit posts 13 are located on the opposite sides of the first mounting seat 8.

[0036] There are also four second vision detection mechanisms in this embodiment. One second vision detection mechanism is arranged between every two adjacent first vision detection mechanisms. The part between two adjacent sides of the product is the joint part. The four second vision detection mechanisms correspond to the four joint parts one by one. With such an arrangement, the requirement for simultaneous vision detection of the four joint parts of the product is met, making the product detection more comprehensive. Of course, the number of second vision detection mechanisms can also be set according to actual needs, and this embodiment does not limit this.

[0037] In this embodiment, second mounting seats 14 that linearly slide are respectively arranged at the positions of the detection platform 1 corresponding to the respective second vision detection mechanisms. Each second vision detection mechanism is respectively arranged on the corresponding second mounting seat 14. A third driving mechanism connected to all the second mounting seats 14 is also arranged on the detection platform 1. The third driving mechanism is used to drive all the second mounting seats 14 to reciprocate linearly synchronously so that each second vision detection mechanism approaches or moves away from the product. With such an arrangement, it is convenient for the second vision detection mechanism to focus on various products of different sizes, expanding the usage range of the vision detection device.

[0038] The third driving mechanism in this embodiment is also preferably a synchronous belt drive mechanism, specifically including a third motor (not shown in the figure), a third synchronous belt 15, and multiple groups of pulley sets corresponding to the second mounting base 14 one by one. Each group of pulley sets includes three third synchronous belt pulleys 16 rotatably arranged on the detection platform 1. The third synchronous belt 15 is wound around the third synchronous belt pulleys 16 of all pulley sets. And one of the third synchronous belt pulleys 16 in each group of pulley sets is located inside the third synchronous belt 15, and the other two third synchronous belt pulleys 16 are located outside the third synchronous belt 15. The third synchronous belt 15 between the third synchronous belt pulley 16 located inside the third synchronous belt 15 and the two third synchronous belt pulleys 16 located outside the third synchronous belt 15 are respectively synchronous belt connection segments, and the two synchronous belt connection segments are parallel. At the position of the detection platform 1 corresponding to the second mounting base 14, two parallel third slide rails 17 are also provided. The two third slide rails 17 are located outside the two synchronous belt connection segments. The second mounting base 14 is arranged on the sliders of the two third slide rails 17, and the second mounting base 14 is connected to any one of the synchronous belt connection segments. Of course, the third driving mechanism can also adopt a chain drive mechanism, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0039] Similarly, in order to prevent the second mounting base 14 from moving out of position and ensure the stability of the vision detection device during operation, in this embodiment, second limiting columns 13 for sliding limit of the second mounting base 14 are respectively arranged on both sides of the second mounting base 14 on the detection platform 1.

[0040] Both the first vision detection mechanism and the second vision detection mechanism in this embodiment include a base for installation, and a vision camera and an annular light source device arranged on the base. The light source device is located between the vision camera and the product stage 2.

[0041] For the convenience of description, in this embodiment, the base of the first vision detection mechanism is denoted as the first base 18, the light source device of the first vision detection mechanism is denoted as the first light source device 21. The first base 18 is arranged on the first mounting base 8, and two vision cameras are arranged side by side on the first base 18. The first light source device 21 is located between the two vision cameras and the product stage 2. The base of the second vision detection mechanism is denoted as the second base 26, the light source device of the second vision detection mechanism is denoted as the second light source device 27. The second base 26 is arranged on the second mounting base 14, and one vision camera is arranged on the second base 26. The second light source device 27 is located between the vision camera and the product stage 2.

[0042] The vision camera in this embodiment includes an industrial camera 19, and an industrial lens 20 arranged on the industrial camera 19. The light source device in this embodiment is an LED lamp.

[0043] For the convenience of manual feeding, a product limiting mechanism that moves up and down is provided on the product stage 2 in this embodiment.

[0044] Specifically, the product limiting mechanism includes a driving member 22 provided on the side of the product stage 2, and a limiting member 23 provided on the driving member 22. The driving member 22 is used to drive the limiting member 23 to move up and down, and the limiting member 23 is used to limit the adjacent two sides of the product.

[0045] Since the air cylinder has rapid action, fast response, and good adaptability to the working environment, the driving member 22 in this embodiment is preferably an air cylinder; since the product in this embodiment is a square silicon wafer, the limiting member 23 in this embodiment adopts an angular structure with two mutually perpendicular sides. In actual application, the limiting member 23 can be designed according to the structure of the product, and this embodiment does not limit this.

[0046] A lifting hook 24 for convenient handling is provided on the inspection platform 1 in this embodiment, and a floor bolt 25 for convenient height adjustment is also provided at the bottom of the inspection platform 1.

[0047] When the robot feeds, the product limiting mechanism does not need to be used, and the robot can accurately place the product on the product stage 2; when manual feeding is performed, the product limiting structure needs to be used. First, the driving member 22 is used to jack up the product limiting member 23 to the side of the product stage 2 (as shown in Figure 1 and Figure 6 ), and then the product is manually placed on the product stage. When placing, the adjacent two sides of the product should be respectively abutted against the two sides of the limiting member 23. After the product is placed, the driving member 22 is used to drive the limiting member 23 to fall until the side of the product is exposed.

[0048] After the product is placed, image acquisition can be performed on the four sides and the four joints of the product. When performing image acquisition on the four sides of the product, first, the four first vision detection mechanisms respectively achieve focusing on the product under the drive of the corresponding second drive mechanism, and then, the four first vision detection mechanisms simultaneously move under the drive of the first drive mechanism to respectively acquire the complete images of the corresponding sides of the product; when performing image acquisition on the four joints of the product, first, the four second vision detection mechanisms simultaneously achieve focusing on the product under the drive of the third drive mechanism, and then, the four second vision detection mechanisms respectively perform image acquisition on the corresponding joints of the product.

[0049] A preferred embodiment of the vision detection device of the present utility model has been introduced in detail above, and there are more embodiments that will not be elaborated here. To sum up, the vision detection device of the present utility model optimizes the structure, and there is no need to transfer the product to multiple inspection stations. Only one inspection station can realize the appearance inspection of multiple parts of the product, greatly improving the inspection efficiency and solving the problem of low inspection efficiency in the prior art.

[0050] The utility model is not limited to the above specific embodiments. All kinds of transformations made by those of ordinary skill in the art starting from the above concepts without creative efforts fall within the protection scope of the utility model.

Claims

1. A visual detection device, characterized in that, It includes a detection platform, as well as a product stage, a first vision detection mechanism and a second vision detection mechanism arranged on the detection platform. The product stage is used to carry the product. The first vision detection mechanism is used to collect images of the side of the product. The second vision detection mechanism is used to collect images of the part between two adjacent sides of the product.

2. The visual inspection device according to claim 1, wherein There are four first vision detection mechanisms, and the four first vision detection mechanisms are respectively arranged on the four sides of the product stage, and the four first vision detection mechanisms correspond to the four sides of the product one by one.

3. The visual inspection device according to claim 2, characterized in that, At the positions of the detection platform corresponding to each first vision detection mechanism, connecting seats that can slide linearly are respectively arranged. Each first vision detection mechanism is respectively arranged on the corresponding connecting seat. A first driving mechanism connected to all the connecting seats is also arranged on the detection platform. The first driving mechanism is used to drive all the connecting seats to reciprocate linearly synchronously so that each first vision detection mechanism moves from one end of the corresponding side of the product to the other end.

4. The visual detection device according to claim 3, wherein A linearly sliding first mounting seat and a second driving mechanism connected to the first mounting seat are arranged on the connecting seat. The first vision detection mechanism is arranged on the first mounting seat. The second driving mechanism is used to drive the first mounting seat to reciprocate linearly so that the first vision detection mechanism approaches or moves away from the product.

5. The visual detection device according to claim 4, characterized in that, There are also four second vision detection mechanisms. One second vision detection mechanism is arranged between every two adjacent first vision detection mechanisms. The part between two adjacent sides of the product is a joint part, and the four second vision detection mechanisms correspond to the four joint parts one by one.

6. The visual inspection device according to claim 5, wherein At the positions of the detection platform corresponding to each second vision detection mechanism, linearly sliding second mounting seats are respectively arranged. Each second vision detection mechanism is respectively arranged on the corresponding second mounting seat. A third driving mechanism connected to all the second mounting seats is also arranged on the detection platform. The third driving mechanism is used to drive all the second mounting seats to reciprocate linearly synchronously so that each second vision detection mechanism approaches or moves away from the product.

7. The visual detection device according to claim 6, characterized in that, The first driving mechanism, the second driving mechanism and the third driving mechanism are all synchronous belt drive mechanisms.

8. The visual detection device according to claim 1, characterized in that, Both the first vision detection mechanism and the second vision detection mechanism include a base for installation, as well as a vision camera and an annular light source device arranged on the base. The light source device is located between the vision camera and the product stage.

9. The visual detection device according to claim 1, wherein A product limiting mechanism that can move up and down is arranged on the product stage.

10. The visual detection device according to claim 9, wherein The product limiting mechanism includes a driving part arranged on the side of the product stage and a limiting part arranged on the driving part. The driving part is used to drive the limiting part to move up and down, and the limiting part is used to limit the two adjacent sides of the product.

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