Automatic visual inspection device
By adopting a dual turntable structure and multiple suction cup components in the automated vision detection device, combined with a line-scan vision component, the problems of low detection efficiency, poor accuracy and poor versatility in the prior art are solved, and efficient, accurate and flexible product detection is achieved.
Patent Information
- Application Number
- CN202421157154.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-05-26
AI Technical Summary
The existing automated vision detection devices have shortcomings in detection efficiency, accuracy, versatility and product protection, and cannot meet the needs of large-scale production.
An automated visual inspection device is designed, adopting a dual turntable structure and multiple suction cup components, combined with a line-scan vision component to realize double-sided detection and automatic transmission of the product. The suction cup push assembly enables the lifting and product transmission of the suction cup through the motor, cam and push rod.
It improves detection efficiency and accuracy, enhances the versatility of the equipment and product protection capabilities, can adapt to products of different thicknesses or shapes, and maintains the continuous operation of the production line.
Smart Images
Figure CN222882701U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of optical automated detection, in particular to an automated visual detection device. Background Art
[0002] With the rapid development of modern manufacturing, the requirements for product quality are getting higher and higher, and the traditional manual inspection method can no longer meet the needs of large-scale and high-efficiency production. Therefore, automated visual inspection devices have emerged and become an important means to ensure product quality. However, the existing automated visual inspection devices still have certain shortcomings in terms of inspection efficiency, accuracy, versatility, and product protection. First of all, most of the existing visual inspection devices can only perform single-sided inspections, with low inspection efficiency, and cannot meet the needs of large-scale production. Secondly, due to the limitations of the equipment, there are certain blind spots in the comprehensive inspection of products, which affects the accuracy of the inspection. Thirdly, the existing equipment is not very versatile when processing products of different thicknesses or shapes, and cannot adapt to diverse production needs.
[0003] Therefore, it is necessary to design an automated visual inspection device to solve the above problems. Utility Model Content
[0004] The utility model aims to provide an automated visual inspection device with high automation and high inspection efficiency.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automated visual inspection device, comprising a first inspection mechanism and a second inspection mechanism, the first inspection mechanism comprising a first turntable, a plurality of first suction cups arranged on the first turntable and a first visual component, the first turntable drives the product to pass through the inspection station of the first visual component in sequence, the second inspection mechanism comprising a second turntable, a plurality of second suction cups arranged on the second turntable, a suction cup pushing component and a second visual component, the second turntable drives the product to pass through the inspection station of the second visual component in sequence; an alternating station is provided between the first inspection mechanism and the second inspection mechanism, the suction cup pushing component is located above the alternating station, when the first suction cup and the second suction cup rotate to the alternating station, the first suction cup is opposite to the second suction cup, and the second suction cup is located between the suction cup pushing component and the first suction cup; the suction cup pushing component is used to push the second suction cup toward the first suction cup to transfer the product between the second suction cup and the first suction cup.
[0006] As a further improved technical solution of the utility model, the suction cup pushing assembly includes a motor, a cam arranged on the output shaft of the motor and a push rod arranged on the cam, and the push rod pushes the second suction cup toward the first suction cup under the drive of the cam.
[0007] As a further improved technical solution of the utility model, the first detection mechanism also includes a first suction cup seat, the first suction cup is arranged on the first suction cup seat, and the first turntable is provided with a mounting groove for mounting the first suction cup seat.
[0008] As a further improved technical solution of the utility model, the second detection mechanism also includes a second suction cup seat, a mounting column and a spring. The second suction cup is arranged on the second suction cup seat. The mounting column passes through the second turntable and is elastically mounted on the second turntable through the spring.
[0009] As a further improved technical solution of the utility model, the first visual component includes two line scanning components, the scanning directions of the two line scanning components are the same, and the line connecting the detection stations of the two line scanning components and the rotation center of the first turntable is perpendicular to each other.
[0010] As a further improved technical solution of the utility model, the second visual component includes two line scanning components, the scanning directions of the two line scanning components are the same, and the lines connecting the detection stations of the two line scanning components and the rotation center of the second turntable are perpendicular to each other.
[0011] As a further improved technical solution of the utility model, it also includes a transfer mechanism, which includes a third turntable, multiple third suction cups and a third visual component. The second detection mechanism also includes a second suction cup pushing component. A second alternating position is provided between the transfer mechanism and the second detection mechanism. When the second suction cup and the third suction cup rotate to the second alternating position, the second suction cup is opposite to the third suction cup, and the second suction cup is located between the second suction cup pushing component and the third suction cup.
[0012] As a further improved technical solution of the utility model, it also includes a loading mechanism, which includes a loading frame and a four-axis robot. The four-axis robot sequentially picks and places the products on the loading frame onto the first turntable.
[0013] As a further improved technical solution of the utility model, it also includes a unloading mechanism, which includes a four-axis robot, a unloading conveyor line and a material receiving frame. The four-axis robot takes and places the products on the third turntable to the unloading conveyor line in sequence. The unloading conveyor line includes a qualified product conveyor line and an unqualified product conveyor line. The material receiving frame includes a qualified product frame and an unqualified product frame.
[0014] As a further improved technical solution of the present invention, the rotation direction of the first turntable is opposite to the rotation direction of the second turntable, and the first suction cup corresponds to the second suction cup one by one.
[0015] It can be seen from the above technical solutions that the automated visual inspection device of the utility model has the following advantages:
[0016] 1. The double turntable design can perform visual inspection on both sides of the product at the same time, thereby reducing the inspection time, improving inspection efficiency and increasing production efficiency; on the other hand, the turntable can be used as a product carrier during inspection and as a product transmission mechanism. Through the double turntable design and the cooperation of two suction cup components, the automatic transfer of products and double-sided inspection are completed, with a simple and efficient structure.
[0017] 2. The first vision mechanism and the second vision mechanism use two line scanning components, and the line scanning directions are perpendicular to each other. This layout can provide more comprehensive product surface inspection, reduce blind spots, and improve inspection accuracy.
[0018] 3. The suction cup pushing assembly of the second detection mechanism enables the second suction cup to be raised and lowered, which increases the flexibility of the device, facilitates adaptation to products of different thicknesses or shapes, and enhances the versatility of the equipment.
[0019] 4. The second suction cup is installed elastically through a spring, which can cushion the impact of the product during the transfer process, protect the product from damage, and ensure that the suction cup can stably adsorb the product.
[0020] 5. The addition of the transfer mechanism further improves the processing capacity of the device, which not only enables the product to transition effectively during the inspection process, but also provides a transfer position before product unloading to maintain the continuous operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is an automated visual inspection device according to an embodiment of the present invention.
[0022] Figure 2 for Figure 1 A three-dimensional diagram of the first detection mechanism.
[0023] Figure 3 for Figure 2 A stereoscopic view of the first suction cup assembly.
[0024] Figure 4 for Figure 1 A perspective view of the line scan assembly.
[0025] Figure 5 for Figure 1 Scanning diagram of the two line scan components.
[0026] Figure 6 for Figure 1 A three-dimensional diagram of the second detection mechanism.
[0027] Figure 7 for Figure 6A stereoscopic view of the second suction cup assembly.
[0028] Figure 8 for Figure 1 A stereoscopic view of the first suction cup pushing assembly.
[0029] Fig. 9 for Figure 1 A three-dimensional diagram of the transfer mechanism. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] Please refer to Figure 1 As shown, the utility model provides an automated visual inspection device, which includes a loading mechanism 40 , a first inspection mechanism 10 , a second inspection mechanism 20 , a transfer mechanism 30 and a unloading mechanism 50 .
[0032] Please also refer to Figure 2 and Figure 3 As shown, the first inspection mechanism 10 includes a first turntable assembly 11, a plurality of first suction cup assemblies 12 disposed on the first turntable assembly 11, and a first visual assembly 13. The first turntable assembly 11 includes a first turntable 111 and a motor 112 for driving the first turntable 111 to rotate, and the first turntable 111 drives the product to pass through the inspection station of the first visual assembly 13 in sequence.
[0033] The first suction cup assembly 12 includes a first suction cup seat 121, a first suction cup 122, a rib 123, an air pipe joint 124, and a vacuum system (not shown). The first suction cup 122 is arranged on the first suction cup seat 121, and a mounting groove for mounting the first suction cup seat 121 is provided on the first turntable 111. The rib 123 is arranged on the upper surface edge of the first suction cup seat 121, and the rib 123 is arranged around the outer periphery of the first suction cup 122 and is higher than the first suction cup 122. In this arrangement, when the first suction cup absorbs the product, the product is surrounded by the first rib to prevent the product from colliding with other structures when the first turntable rotates. The vacuum system is arranged on the rotary joint 125, and the first suction cup 122 is connected to the vacuum system through the air pipe joint 124. In this embodiment, the first suction cup seat 121 is square, which is suitable for square products. In other embodiments, suction cup seats of different shapes can also be selected according to the shape of the actual detected product.
[0034] Please refer to Figure 1 and Figure 4As shown, the first visual component 13 includes two line scanning components 131, 132 and an area array component 133 arranged in a circle above the first turntable 111. The line scanning components 131 and 132 are used to detect crack defects on the front of the product, and the area array component 133 is used to detect missing edges on the front. The line scanning component 131 includes a bracket 1311, a movable module 1312 arranged on the bracket 1311, a line scanning camera 1313 and a line light source 1314. The structure of the line scanning component 132 is consistent with that of the line scanning component 131, and the scanning directions of the two line scanning components 131, 132 are the same, and the line connecting the detection stations of the two line scanning components and the rotation center of the first turntable 111 is perpendicular to each other. For details, please refer to Figure 5 As shown, when the product is at position 1 (the detection station of the line scanning component 131), the line scanning component 131 scans the product in the first direction (see the arrow direction of position 1); when the product rotates to position 2 (the detection station of the line scanning component 132), the product rotates 90° in the horizontal direction driven by the first turntable 111. Therefore, although the scanning direction of the other line scanning component 132 to the product (see the arrow direction of position 2) is the same as the scanning direction of the line scanning component 131, for the product, the two scanning directions are perpendicular to each other. This setting can capture more details of the product surface from different perspectives, prevent the detection blind spots that may exist in a single direction, and thus improve the integrity and accuracy of the detection.
[0035] Please refer to Figure 1 and Figure 6 As shown, the second inspection mechanism 20 includes a second turntable assembly 21, a plurality of second suction cup assemblies 22, a first suction cup push assembly 23, a second suction cup push assembly 24 and a second visual assembly 25. The second turntable 211 drives the product to pass through the inspection station of the second visual assembly 25 in sequence.
[0036] The second turntable assembly 21 includes a second turntable 211 and a motor 212 for driving the second turntable 211 to rotate. Figure 7 As shown, the second suction cup assembly 22 includes a second suction cup seat 221, a second suction cup 222, a mounting post 224, a spring (not shown), and a pressure block 225 disposed at the top of the mounting post 224. The second suction cup 222 is disposed on the second suction cup seat 221, and the second suction cup seat 221 is also provided with an air nozzle 223 connected to the second suction cup 222. One end of the mounting post 224 is connected to the second suction cup seat 221, and is passed through the second rotating disk 211, and is elastically mounted on the second rotating disk 211 through a spring.
[0037] Please refer to Figure 1As shown, there is an alternating station between the first detection mechanism 10 and the second detection mechanism 20. When the first suction cup 122 and the second suction cup 222 rotate to the alternating station, the first suction cup 122 is opposite to the second suction cup 222. In this embodiment, the rotation direction of the first rotating disk 111 is opposite to the rotation direction of the second rotating disk 211, and the first suction cup 122 corresponds to the second suction cup 222 one by one. The first suction cup pushing assembly 23 is located above the alternating station, and the second suction cup 222 is located between the first suction cup pushing assembly 23 and the first suction cup 122. The first suction cup pushing assembly 23 is used to push the second suction cup 222 toward the first suction cup 122 to transfer the product between the second suction cup 222 and the first suction cup 122.
[0038] Please refer to Figure 8 As shown, the first suction cup pushing assembly 23 includes a motor 231, a cam 232 arranged on the output shaft of the motor 231 and a push rod 233 arranged on the cam 232. The push rod 233 pushes the pressing block 225 downward under the drive of the cam 232, thereby causing the second suction cup 222 to move toward the first suction cup 122.
[0039] Please refer to Figure 1 As shown, the second visual component 25 includes two line scanning components 251 and 252, which are respectively used to detect crack defects and edge defects on the back of the product. The structure and setting method of the two line scanning components 251 and 252 are consistent with those in the first visual component 13 and will not be repeated here.
[0040] Please refer to Figure 1 and Fig. 9 As shown, the transfer mechanism 30 includes a third turntable assembly 31, a plurality of third suction cup assemblies 32 and a third visual assembly (not shown). The transfer mechanism 30 is arranged between the second detection mechanism 20 and the unloading mechanism 50. On the one hand, it is used to transfer products between the second detection mechanism 20 and the unloading mechanism 50. On the other hand, it can also be used to expand the detection position as a supplement to the first detection mechanism 10 and the second detection mechanism 20. The third turntable assembly 31 includes a third turntable 311 and a motor 312 that drives the third turntable 311 to rotate. There is a second alternating station between the transfer mechanism 30 and the second detection mechanism 20. When the second suction cup 222 and the third suction cup 32 rotate to the second alternating station, the second suction cup 222 is opposite to the third suction cup 32, and the second suction cup 222 is located between the second suction cup pushing assembly 24 and the third suction cup 32. The second suction cup pushing assembly 24 of the second detection mechanism 20 is used to push the second suction cup 222 toward the third suction cup. Specifically, the structure of the second suction cup pushing assembly 24 is consistent with that of the first suction cup pushing assembly 23, which will not be described in detail here.
[0041] Please refer to Figure 1As shown, the loading mechanism 40 includes a loading frame 41 and a four-axis robot 42. The four-axis robot 42 sequentially picks and places the products on the loading frame 41 onto the first turntable 122. The unloading mechanism 50 includes a four-axis robot 51, an unloading conveyor line 52 and a receiving frame 53. The four-axis robot 51 sequentially picks and places the products on the third turntable 32 onto the unloading conveyor line 52. The unloading conveyor line 52 includes a qualified product conveyor line and a failed product conveyor line. When the product is conveyed to the receiving frame 53, the four-axis robot 51 transfers the product on the unloading conveyor line 52 to the receiving frame 53. The receiving frame 53 includes a qualified product frame and a failed product frame.
[0042] Terms such as "upper" and "lower" used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one feature relative to another feature as shown in the drawings. It is understood that, depending on the placement of the product, the terms of spatial relative positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims.
[0043] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. An automated visual inspection device, characterized in that: It includes a first detection mechanism and a second detection mechanism, the first detection mechanism includes a first turntable, a plurality of first suction cups arranged on the first turntable and a first visual component, the first turntable drives the product to pass through the detection station of the first visual component in sequence, the second detection mechanism includes a second turntable, a plurality of second suction cups arranged on the second turntable, a suction cup pushing component and a second visual component, the second turntable drives the product to pass through the detection station of the second visual component in sequence; there is an alternating station between the first detection mechanism and the second detection mechanism, the suction cup pushing component is located above the alternating station, when the first suction cup and the second suction cup rotate to the alternating station, the first suction cup is opposite to the second suction cup, and the second suction cup is located between the suction cup pushing component and the first suction cup.
2. The automated visual inspection device according to claim 1, characterized in that: The suction cup pushing assembly includes a motor, a cam arranged on the output shaft of the motor, and a push rod arranged on the cam. The push rod pushes the second suction cup toward the first suction cup under the drive of the cam.
3. The automated visual inspection device according to claim 1, wherein: The first detection mechanism also includes a first suction cup seat, the first suction cup is arranged on the first suction cup seat, and the first rotating plate is provided with a mounting groove for mounting the first suction cup seat.
4. The automated visual inspection device according to claim 1, wherein: The second detection mechanism also includes a second suction cup seat, a mounting post and a spring. The second suction cup is arranged on the second suction cup seat. The mounting post passes through the second turntable and is elastically mounted on the second turntable through the spring.
5. The automated visual inspection device according to claim 1, wherein: The first visual component includes two line scanning components, the scanning directions of the two line scanning components are the same, and the lines connecting the detection stations of the two line scanning components and the rotation center of the first turntable are perpendicular to each other.
6. The automated visual inspection device according to claim 1, wherein: The second visual component includes two line scanning components, the scanning directions of the two line scanning components are the same, and the lines connecting the detection stations of the two line scanning components and the rotation center of the second turntable are perpendicular to each other.
7. The automated visual inspection device according to claim 1, wherein: It also includes a transfer mechanism, which includes a third turntable, multiple third suction cups and a third visual component. The second detection mechanism also includes a second suction cup pushing component. A second alternating position is provided between the transfer mechanism and the second detection mechanism. When the second suction cup and the third suction cup rotate to the second alternating position, the second suction cup is opposite to the third suction cup, and the second suction cup is located between the second suction cup pushing component and the third suction cup.
8. The automated visual inspection device according to claim 1, wherein: It also includes a loading mechanism, which includes a loading frame and a four-axis robot. The four-axis robot sequentially picks and places the products on the loading frame onto the first turntable.
9. The automated visual inspection device according to claim 7, characterized in that: It also includes a material unloading mechanism, which includes a four-axis robot, a material unloading conveyor line and a material receiving frame. The four-axis robot takes and places the products on the third turntable to the material unloading conveyor line in sequence. The material unloading conveyor line includes a qualified product conveyor line and a failed product conveyor line. The material receiving frame includes a qualified product frame and a failed product frame.
10. The automated visual inspection device according to claim 1, wherein: The rotation direction of the first rotating disk is opposite to that of the second rotating disk, and the first suction cup corresponds to the second suction cup one by one.