Visual inspection equipment
By automatically detecting defects on the top and sides of products using visual inspection equipment, the problem of time-consuming and difficult-to-identify minute defects in traditional manual inspection is solved, achieving efficient and accurate automated inspection.
Patent Information
- Application Number
- CN202520484820.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Traditional manual inspection methods are time-consuming and struggle to identify minor defects, making it difficult to guarantee product pass rates.
The system employs visual inspection equipment, including a machine base, an image acquisition device, and a moving unit. The moving unit drives the product to move to different positions, and the image acquisition device automatically detects defects on the upper surface and sides of the product.
It improves detection efficiency, reduces detection errors, achieves automated detection, and avoids human error.
Smart Images
Figure CN223955467U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to detection equipment technical field especially relates to a visual inspection equipment. BACKGROUND
[0002] Many products with high manufacturing process requirements need to be detected for product silk screen defect and spraying defect before leaving factory, which aims to check whether the product has unclear identification, uneven surface and scratch. The traditional detection method is artificial detection by naked eye, if there is a product that does not meet the factory requirements, it will be picked out. However, the artificial detection method will consume a lot of time, and for some subtle defects, the human eye is not easy to identify, so it cannot guarantee the qualified rate of the products leaving factory. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a visual inspection equipment, which can automatically detect products to improve detection efficiency and reduce detection error.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] The utility model provides a visual inspection equipment, which comprises:
[0006] A machine table;
[0007] An image taking device, which is arranged on the machine table and is used for shooting products and sending signals;
[0008] A moving unit, which is arranged on the machine table and can drive the products to move between a loading and unloading position, a first detection position and a second detection position;
[0009] At the loading and unloading position, the products are close to the edge of the machine table, at the first detection position, the upper surface of the products faces the image taking device, and at the second detection position, the side surface of the products faces the image taking device.
[0010] Preferably, the moving unit comprises a Y-axis moving module and an X-axis moving module, both of which are arranged on the machine table.
[0011] The Y-axis moving module can drive the products to move along the Y-axis between the loading and unloading position and the first detection position, and the X-axis moving module can drive the products to move along the X-axis between the first detection position and the second detection position.
[0012] As preferably, the mobile unit further comprises a carrying jig, which is arranged on the Y-axis moving module, and has an upper loading slot and a lower loading slot, the upper loading slot is used for accommodating the product to be detected, and the lower loading slot is used for accommodating the product after detection.
[0013] As preferably, the Y-axis moving module is provided with a foolproof positioning block, and the carrying jig is provided with a foolproof round corner matched with the foolproof positioning block.
[0014] As preferably, the upper loading slot is provided with a first light supplementing lamp.
[0015] As preferably, the mobile unit further comprises a vacuum suction accessory and a Z-axis moving module, the Z-axis moving module is arranged on the X-axis moving module, and the vacuum suction accessory is arranged on the Z-axis moving module.
[0016] The vacuum suction accessory can adsorb the product, and the Z-axis moving module can drive the vacuum suction accessory to move along the Z-axis.
[0017] As preferably, the image taking device comprises a first camera and a second camera, the first camera is arranged on the X-axis moving module, and the second camera is arranged on the machine table.
[0018] The first camera is used for shooting the product located at the first detection position, and the second camera is used for shooting the product located at the second detection position.
[0019] As preferably, the visual detection equipment further comprises a second light supplementing lamp, which is arranged on the machine table and is arranged opposite to the product at the second detection position.
[0020] As preferably, the visual detection equipment further comprises a protective cover, which is arranged on the machine table and covers the image taking device and the mobile unit, and has an opening for taking and placing the product.
[0021] As preferably, the visual detection equipment further comprises a safety grating, the emitting end and the receiving end of which are arranged on the protective cover on both sides of the opening respectively, and the receiving end is used for receiving the light beam emitted by the emitting end and sending a signal.
[0022] The visual detection equipment has the advantages that:
[0023] The visual inspection equipment provided by the utility model, including machine table, image pickup device and mobile unit, the image pickup device is used for shooting product, the mobile unit can drive product to move between taking and placing material position, first detection position and second detection position, since taking and placing material position is close to machine table edge, therefore, it is convenient for staff to take out product from the visual inspection equipment or place product to the visual inspection equipment, since at first detection position, the upper surface of product is opposite to image pickup device, therefore, image pickup device can shoot the upper surface of product and acquire the information of the upper surface of product, so as to detect the defect of the upper surface of product, since at second detection position, the side of product is opposite to image pickup device, therefore, image pickup device can shoot the side of product and acquire the information of the side of product, so as to detect the defect of the side of product, since image pickup device and mobile unit are all arranged on machine table, therefore, the visual inspection equipment is integrated structure, simple structure, convenient to carry, the visual inspection equipment can automatically move product through mobile unit, and each surface of product is shot and detected through image pickup device, high degree of automation and accurate detection result, avoid artificial error caused by artificial detection. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is the structure schematic diagram of the visual inspection equipment provided by the utility model specific embodiment, and
[0025] Figure 2 It is the first visual angle structure schematic diagram of the image pickup device and mobile unit provided by the utility model specific embodiment,
[0026] Figure 3 It is the second visual angle structure schematic diagram of the image pickup device and mobile unit provided by the utility model specific embodiment,
[0027] Figure 4 It is the top view of the bearing fixture provided by the utility model specific embodiment.
[0028] In the drawing,
[0029] 100-product,
[0030] 1-machine table,
[0031] 2-image pickup device, 21-first camera, 22-second camera,
[0032] 3-mobile unit, 31-Y axis movement module, 311-foolproof positioning block, 32-X axis movement module, 33-bearing fixture, 331-feeding groove, 332-discharging groove, 333-foolproof round corner, 34-Z axis movement module, 35-vacuum suction accessory,
[0033] 4-protection cover,
[0034] 5 - safety grating; 51 - transmitting end; 52 - receiving end;
[0035] 6 - second light supplementing lamp. DETAILED DESCRIPTION
[0036] The utility model will be described in further detail below in connection with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0039] In the description of the embodiment, the terms "up", "down", "right", "left" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0040] As Figures 1 to 4The utility model provides a kind of visual inspection equipment, which includes machine table 1, image pickup device 2 and mobile unit 3, image pickup device 2 is arranged on machine table 1, and image pickup device 2 is used to shoot product 100 and send signal;Mobile unit 3 is arranged on machine table 1, and mobile unit 3 can drive product 100 to move between taking and placing position, first detection position and second detection position;At taking and placing position, product 100 is close to the edge of machine table 1, at first detection position, the upper surface of product 100 is opposite to image pickup device 2, and at second detection position, the side of product 100 is opposite to image pickup device 2.
[0041] In this embodiment, since the taking and placing position is close to the edge of machine table 1, it is convenient for workers to manually take out product 100 from the visual inspection equipment or place product 100 on the visual inspection equipment;Since at first detection position, the upper surface of product 100 is opposite to image pickup device 2, image pickup device 2 can shoot the upper surface of product 100 and obtain the information of the upper surface of product 100 to detect the defects on the upper surface of product 100;Since at second detection position, the side of product 100 is opposite to image pickup device 2, image pickup device 2 can shoot the side of product 100 and obtain the information of the side of product 100 to detect the defects on the side of product 100;Since image pickup device 2 and mobile unit 3 are both arranged on machine table 1, the visual inspection equipment has an integrated structure, which is simple in structure and convenient to carry;The visual inspection equipment can automatically move product 100 by mobile unit 3 and shoot and detect each surface of product 100 by image pickup device 2, which has high automation degree and accurate detection results, and avoids human errors caused by manual detection.
[0042] Specifically, the general working process of the visual inspection equipment is as follows: the worker places product 100 to be detected at the taking and placing position of the visual inspection equipment, and then mobile unit 3 moves product 100 to first detection position, at which time the upper surface of product 100 is opposite to image pickup device 2, image pickup device 2 shoots the upper surface of product 100 and transmits the image to the externally connected computer, and the computer analyzes the defects on the upper surface of product 100 by image analysis software;Then mobile unit 3 moves product 100 to second detection position, at which time the side of product 100 is opposite to image pickup device 2, image pickup device 2 shoots the side of product 100 and transmits the image to the externally connected computer, and the computer analyzes the defects on the side of product 100 by image analysis software, and judges whether product 100 is qualified or not in combination with the analysis result of the upper surface;After the above process is completed, mobile unit 3 moves product 100, which has completed detection, to taking and placing position, and the worker classifies and places product 100 according to the detection result of product 100.
[0043] Specifically, as shown in Figure 2 and Figure 3 The mobile unit 3 includes a Y-axis moving module 31 and an X-axis moving module 32, both of which are arranged on the machine table 1. The Y-axis moving module 31 can drive the product 100 to move along the Y-axis between the loading and unloading position and the first detection position, and the X-axis moving module 32 can drive the product 100 to move along the X-axis between the first detection position and the second detection position. In this embodiment, both the Y-axis moving module 31 and the X-axis moving module 32 are screw guide rail devices commonly used in the art. Taking the Y-axis moving module 31 as an example, the screw guide rail device includes a screw, a slide rail, a slide table, and a screw motor. The slide rail is arranged parallel to the Y-axis, the screw is parallel to the slide rail, the slide table is slidingly arranged on the slide rail and threadedly cooperates with the screw, the product 100 is placed on the slide table, and the screw motor is arranged beside the slide rail to drive the screw to rotate, thereby driving the slide table to drive the product 100 to move along the Y-axis. It can be understood that the Y-axis moving module 31 and the X-axis moving module 32 can also be linear stepping motors commonly used in the art, and can also be air cylinders that can stop at any position in the stroke. As long as it is a linear displacement device that can achieve precise position control, it is not limited here.
[0044] As shown in Figures 2 to 4As shown, the mobile unit 3 further comprises a carrying jig 33 arranged on the Y-axis moving module 31, the carrying jig 33 having an upper loading slot 331 and a lower loading slot 332, the upper loading slot 331 being used for accommodating the product 100 to be detected, and the lower loading slot 332 being used for accommodating the product 100 after detection; specifically, the carrying jig 33 is arranged on the sliding table of the Y-axis moving module 31, and the Y-axis moving module 31 drives the product 100 to move through the carrying jig 33; since the carrying jig 33 is provided with two slots for accommodating the product 100, the visual detection equipment can simultaneously perform detection work on two products 100, and the specific working process is as follows: first, the Y-axis moving module 31 drives the carrying jig 33 to move to a loading and unloading position, and the worker puts the undetected product 100 into the upper loading slot 331 of the carrying jig 33, and then the Y-axis moving module 31 moves the carrying jig 33 to a first detection position, and the image capturing device 2 performs upper surface photographing detection on the product 100 in the upper loading slot 331; while the product 100 in the upper loading slot 331 is moved by the Y-axis moving module 31 and is detected on the upper surface, the X-axis moving module 32 drives the product 100 after the last detection process to move, for the convenience of distinction, the product 100 in the upper loading slot 331 which has not completed the upper surface detection is called new material, and the product 100 after the last working process is called old material; while the new material moves to the first detection position for upper surface detection, the old material is moved to a second detection position by the X-axis moving module 32 and is detected on the side surface by using the image capturing device 2, after the old material completes the side surface detection, the X-axis moving module 32 moves the old material along the X-axis to the lower loading slot 332 of the carrying jig 33, at this time, the new material in the upper loading slot 331 has completed the upper surface photographing detection; then the X-axis moving module 32 moves the new material from the upper loading slot 331 to the second detection position, and uses the image capturing device 2 to detect the side surface thereof, at the same time, the Y-axis moving module 31 moves the carrying jig 33 along the Y-axis to the loading and unloading position, the worker takes out the old material in the lower loading slot 332 of the carrying jig 33 and classifies and processes according to the detection results, and at the same time, puts the new product 100 which has not been detected into the upper loading slot 331, so as to perform the next detection process; in this way, the detection of two products 100 can be realized in the same detection process, and the detection efficiency of the product 100 is greatly improved.
[0045] In order to improve the accuracy of product 100 detection, as Figure 3 and Figure 4As shown, the Y-axis moving module 31 is provided with a fool-proof positioning block 311, and the carrying jig 33 is provided with a fool-proof rounded corner 333 matched with the fool-proof positioning block 311. Specifically, the fool-proof positioning block 311 is fixedly arranged on a sliding table of the Y-axis moving module 31, and has a circular-arc protrusion. The carrying jig 33 is provided with the fool-proof rounded corner 333 at a corner corresponding to the fool-proof positioning block 311, and the fool-proof rounded corner 333 is matched with the circular-arc protrusion of the fool-proof positioning block 311. Therefore, the design of the fool-proof positioning block 311 and the fool-proof rounded corner 333 can avoid the position placement error of the carrying jig 33, thereby improving the accuracy of the product 100 detection.
[0046] Specifically, the first light supplementing lamp is arranged in the feeding slot 331, and is used for illuminating the product 100 in the feeding slot 331, thereby improving the brightness of the product 100 and ensuring that the image capturing device 2 captures a clear image.
[0047] Further, as shown in Figure 2 and Figure 3 , the moving unit 3 further includes a vacuum suction accessory 35 and a Z-axis moving module 34. The Z-axis moving module 34 is arranged on the X-axis moving module 32, and the vacuum suction accessory 35 is arranged on the Z-axis moving module 34. The vacuum suction accessory 35 can suck the product 100, and the Z-axis moving module 34 can drive the vacuum suction accessory 35 to move along the Z-axis. In this embodiment, the Z-axis moving module 34 has the same structure as the Y-axis moving module 31, and is a common screw guide rail device in the art, and the specific structure is not described here. The Z-axis moving module 34 is arranged on one sliding table of the X-axis moving module 32. The vacuum suction accessory 35 includes a vacuum pump and a suction head. The vacuum pump is connected with the suction head through a pipeline, so as to generate negative pressure at the port of the suction head, thereby sucking the product 100 and moving the product 100 between the first detection position and the second detection position.
[0048] In this embodiment, the screw motors of the X-axis moving module 32, the Y-axis moving module 31 and the Z-axis moving module 34 are automatically controlled by an external control system, without manual operation by the staff.
[0049] Further, as shown in Figure 2 and Figure 3As shown, the image taking device 2 comprises a first camera 21 and a second camera 22, the first camera 21 is arranged on the X-axis moving module 32, and the second camera 22 is arranged on the machine table 1; the first camera 21 is used for shooting the product 100 located at the first detection position, and the second camera 22 is used for shooting the product 100 located at the second detection position. Specifically, the X-axis moving module 32 has two sliding tables, one of which is provided with the first camera 21, and the other is provided with the Z-axis moving module 34, and each sliding table can move along the X-axis; since the first camera 21 can move along the X-axis, it can shoot products 100 of different sizes and specifications, greatly improving the practicability of the visual inspection equipment.
[0050] In order to improve the accuracy of detection, such as Figure 2 and Figure 3 The visual inspection equipment further comprises a second light supplement lamp 6, which is arranged on the machine table 1, and the second light supplement lamp 6 is arranged opposite to the product 100 at the second detection position, and the second light supplement lamp 6 is used for illuminating the product 100 at the second detection position, ensuring that the second camera 22 can shoot clear images.
[0051] Specifically, the vacuum suction accessory 35 is arranged on the sliding table of the X-axis moving module 32 through a rotating motor, the rotating motor can drive the vacuum suction accessory 35 to rotate, and then drive the product 100 on it to rotate, so that the second camera 22 can shoot all sides of the product 100.
[0052] In order to reduce the interference of the outside to the detection process, the visual inspection equipment further comprises a protective cover 4, which is arranged on the machine table 1, and the protective cover 4 covers the image taking device 2 and the moving unit 3, and the protective cover 4 has an opening for taking and placing the product 100, and the taking and placing position is close to the opening, so as to facilitate the workers to take the product 100 from the carrying fixture 33 or place the product 100 on the carrying fixture 33.
[0053] Further, such as Figure 1As shown, the visual inspection device further comprises a safety grating 5, an emitting end 51 and a receiving end 52 of the safety grating 5 are arranged on the protective cover 4 on both sides of the opening respectively, the receiving end 52 is used for receiving the light beam emitted by the emitting end 51 and sending a signal; specifically, the safety grating 5 is a kind of photoelectric safety protection device commonly used in the art, the emitting end 51 and the receiving end 52 are arranged on the protective cover 4 on both sides of the opening respectively, and both are located at the same height; the receiving end 52 is connected with the external control system, when the receiving end 52 does not receive the light beam emitted by the emitting end 51, the control system will stop the lead screw motor of the X-axis moving module 32, the Y-axis moving module 31 and the Z-axis moving module 34, so that the X-axis moving module 32, the Y-axis moving module 31 and the Z-axis moving module 34 stop action, avoid causing injury due to the hand of personnel into the protective cover 4, and also can prevent external foreign matters from entering and causing damage to the moving unit 3. It should be noted that the installation position of the emitting end 51 and the receiving end 52 and the bearing fixture 33 on the Y-axis moving module 31 exist a certain vertical distance, so as to prevent the safety grating 5 from responding incorrectly when the worker takes and places the product 100.
[0054] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application claims.
Claims
1. Visual inspection apparatus, characterized in that Include: A machine table (1); An image taking device (2) is arranged on the machine table (1), and the image taking device (2) is used for shooting products (100) and sending signals; A moving unit (3) is arranged on the machine table (1), and the moving unit (3) can drive the products (100) to move between a loading and unloading position, a first detection position and a second detection position; At the loading and unloading position, the products (100) are close to the edge of the machine table (1), at the first detection position, the upper surface of the products (100) faces the image taking device (2), and at the second detection position, the side of the products (100) faces the image taking device (2).
2. The vision inspection apparatus of claim 1, wherein The moving unit (3) includes a Y-axis moving module (31) and an X-axis moving module (32), both of which are arranged on the machine table (1); The Y-axis moving module (31) can drive the products (100) to move along the Y-axis between the loading and unloading position and the first detection position, and the X-axis moving module (32) can drive the products (100) to move along the X-axis between the first detection position and the second detection position.
3. The vision inspection apparatus of claim 2, wherein The moving unit (3) further includes a carrying jig (33), which is arranged on the Y-axis moving module (31), and the carrying jig (33) has a loading slot (331) and a discharging slot (332), the loading slot (331) is used for accommodating the products (100) to be detected, and the discharging slot (332) is used for accommodating the products (100) after detection.
4. The vision inspection apparatus of claim 3, wherein A foolproof positioning block (311) is arranged on the Y-axis moving module (31), and the carrying jig (33) is provided with a foolproof round corner (333) matched with the foolproof positioning block (311).
5. The vision inspection apparatus of claim 3, wherein A first light supplementing lamp is arranged in the loading slot (331).
6. The vision inspection apparatus of claim 2, wherein The moving unit (3) further includes a vacuum suction accessory (35) and a Z-axis moving module (34), the Z-axis moving module (34) is arranged on the X-axis moving module (32), and the vacuum suction accessory (35) is arranged on the Z-axis moving module (34); The vacuum suction accessory (35) can adsorb the products (100), and the Z-axis moving module (34) can drive the vacuum suction accessory (35) to move along the Z-axis.
7. The vision inspection apparatus of claim 2, wherein The image taking device (2) includes a first camera (21) and a second camera (22), the first camera (21) is arranged on the X-axis moving module (32), and the second camera (22) is arranged on the machine table (1); The first camera (21) is used for shooting the products (100) located at the first detection position, and the second camera (22) is used for shooting the products (100) located at the second detection position.
8. The vision inspection apparatus of claim 1, wherein The visual inspection equipment further comprises a second light supplement lamp (6) arranged on the machine table (1), and the second light supplement lamp (6) is arranged opposite to the product (100) at the second detection position.
9. The vision inspection apparatus of claim 1, wherein, The visual inspection equipment further comprises a protective cover (4) arranged on the machine table (1), and the protective cover (4) covers the image acquisition device (2) and the moving unit (3), and the protective cover (4) has an opening for taking and placing the product (100).
10. The vision inspection apparatus of claim 9, wherein, The visual inspection equipment further comprises a safety light barrier (5), and the emission end (51) and the receiving end (52) of the safety light barrier (5) are arranged on the protective cover (4) on both sides of the opening respectively, and the receiving end (52) is used for receiving the light beam emitted by the emission end (51) and sending a signal.