Product appearance and size inspection equipment

Abstract

This utility model discloses a product appearance and size inspection device, including a machine body, a vision inspection device mounted thereon, and a sorting and unloading mechanism. The machine body includes a conveying mechanism, a vibratory feeder, and a handling robot. The vibratory feeder has an open-type receiving cavity with a first vision inspection module above it. The vibratory feeder can disperse the vibration of the product to be tested in the receiving cavity. The first vision inspection module can perform orientation positioning and identification of the product to be tested in the receiving cavity and feed back the identification information to the handling robot. The handling robot can grasp the product to be tested in the receiving cavity and transport it to the conveying mechanism. The vision inspection device can inspect the appearance and size of the product to be tested on the conveying mechanism. The sorting and unloading mechanism includes a good product box and a waste product box, which can unload the inspected products from the conveying mechanism into the good product box or the waste product box. This utility model can achieve high-precision appearance and size inspection with high inspection efficiency, which is beneficial for large-scale production applications.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a product appearance and size testing equipment. Background Technology

[0002] For some existing plastic products with missing teeth, it is necessary to inspect their appearance and dimensions during production. The existing inspection method is usually carried out by workers using measuring tools. This method has limited measurement accuracy and is not suitable for products with high precision requirements. Moreover, manual inspection is inefficient and difficult to adapt to large-scale production applications. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a product appearance dimension inspection device that identifies and inspects the appearance dimensions of products through visual inspection, achieving high-precision appearance dimension inspection with a high degree of automation and inspection efficiency, which is beneficial for large-scale production applications.

[0004] According to the product appearance and size inspection equipment described in this utility model embodiment, it includes a body, a vision inspection device, and a sorting and unloading mechanism. The body is provided with a conveying mechanism, a vibrating plate, and a handling robot. The vibrating plate has a receiving cavity for holding the product to be tested. The upper side of the receiving cavity is an open structure, and a first vision inspection module is provided above it. The vibrating plate can vibrate and disperse the product to be tested in the receiving cavity. The first vision inspection module can perform orientation positioning and identification of the product to be tested in the receiving cavity. The first vision inspection module is electrically connected to the handling robot and feeds back the identification information to the handling robot. The handling robot can grab the product to be tested in the receiving cavity and transport it to the conveying mechanism. The conveying mechanism is used to transport the product to be tested. The vision inspection device is located on the body and can perform photo recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism. The sorting and unloading mechanism is located on the body and includes a good product box and a waste product box. The sorting and unloading mechanism can unload the product that has completed photo recognition and inspection on the conveying mechanism into the good product box or the waste product box.

[0005] According to the product appearance and size inspection equipment described in this utility model embodiment, it has at least the following beneficial effects: In use, multiple serrated plastic products to be tested are placed in a receiving cavity. A vibrating plate disperses the products to be tested in the receiving cavity. A first vision inspection module performs orientation positioning and identification on the products to be tested in the receiving cavity and feeds back the identification information to the handling robot. The handling robot grabs the products to be tested in the receiving cavity according to the identification information of the first vision inspection module and transports them to the conveying mechanism. The conveying mechanism transports the serrated plastic products to be tested to the corresponding workstation of the vision inspection device. The vision inspection device takes pictures and identifies the appearance and size information of the serrated plastic products to be tested on the conveying mechanism to detect whether their appearance and size meet the design requirements and determine whether their appearance and size are qualified. Subsequently, the conveying mechanism transports the serrated plastic products that have completed the picture identification and detection to the sorting and unloading mechanism. The sorting and unloading mechanism unloads the qualified products into the good product box and the unqualified products into the waste product box according to the detection results, thus completing the appearance and size inspection operation of the serrated plastic products. This invention identifies the appearance dimensions of products through visual inspection, achieving high-precision appearance dimension inspection with a high degree of automation and inspection efficiency, which is beneficial for large-scale production applications.

[0006] According to some embodiments of this utility model, a storage hopper for storing the product to be tested is provided on one side of the vibratory feeder. A switch assembly is provided at the outlet of the storage hopper. The switch assembly is used to control the opening and closing of the outlet of the storage hopper and is electrically connected to the first visual detection module. The first visual detection module can take pictures to identify and detect the remaining amount of the product to be tested in the accommodating cavity and feed back the remaining amount information to the switch assembly. When the outlet of the storage hopper is in the open state, the product to be tested in the storage hopper can be output to the accommodating cavity.

[0007] According to some embodiments of the present invention, a second visual detection module is provided between the conveying mechanism and the vibrating plate. The second visual detection module is set according to the motion path of the handling robot arm handling the product to be tested. The second visual detection module can take pictures and identify the gripping situation of the product to be tested by the handling robot arm.

[0008] According to some embodiments of the present invention, the conveying mechanism includes a turntable and a driver connected to the turntable. The driver is used to drive the turntable to rotate. The turntable is provided with a plurality of positioning fixtures. The plurality of positioning fixtures are evenly spaced around the rotation axis of the turntable. The positioning fixtures are used for the product to be tested on the turntable to abut against, so as to position the product to be tested.

[0009] According to some embodiments of the present invention, a positioning mechanism and a position recognition mechanism are provided on one side of the turntable. The positioning mechanism and the position recognition mechanism are arranged sequentially along the conveying direction of the product to be tested on the turntable. The positioning mechanism is used to make the product to be tested on the turntable abut against the positioning fixture. The position recognition mechanism is used to identify the positioning trigger origin position of the product to be tested on the turntable. The position recognition mechanism is electrically connected to the visual inspection device and feeds back the position recognition information to the visual inspection device.

[0010] According to some embodiments of the present invention, the positioning mechanism includes a first air blowing component, which is used to blow air onto the product to be tested on the turntable, so that the product to be tested is blown to abut against the positioning fixture.

[0011] According to some embodiments of the present invention, the visual inspection device includes a third visual inspection module and a fourth visual inspection module. The third visual inspection module is provided with at least one and is used to perform top-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism. The fourth visual inspection module is provided with at least one and is used to perform side-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism.

[0012] According to some embodiments of the present invention, the sorting and feeding mechanism includes a second air blowing component and a third air blowing component. The second air blowing component is configured to correspond to the good product box and can blow the products that have completed photo recognition and detection and passed the detection on the conveying mechanism to the good product box. The third air blowing component is configured to correspond to the waste product box and can blow the products that have completed photo recognition and detection and failed the detection on the conveying mechanism to the waste product box.

[0013] According to some embodiments of the present invention, the sorting and feeding mechanism includes a retesting box and a fourth air blowing component. The fourth air blowing component is set corresponding to the retesting box and can blow products that have been photographed and identified on the conveying mechanism but whose qualification cannot be accurately determined to be qualified to the retesting box.

[0014] According to some embodiments of the present invention, the machine body is provided with a shell, and a test cavity is provided inside the shell. The conveying mechanism, the vibrating plate and the visual inspection device are all located in the test cavity. The shell is connected to a negative pressure fan, which can suck and exhaust air from the test cavity to create a negative pressure environment in the test cavity.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of the product appearance and size inspection equipment according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A partial structural diagram of a product appearance and dimension inspection equipment;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0020] Figure 4 for Figure 2 A schematic diagram of the structure of the second vision detection module;

[0021] Figure 5 for Figure 2 A schematic diagram of the positioning mechanism;

[0022] Figure 6 for Figure 2 A schematic diagram of the structure of the third vision detection module;

[0023] Figure 7 for Figure 2 A schematic diagram of the structure of the fourth vision detection module in the middle;

[0024] Figure 8 for Figure 2 A schematic diagram of the middle sorting and feeding mechanism.

[0025] Figure label:

[0026] 10 types of plastic products with missing teeth;

[0027] 100, body 110, conveying mechanism 110, turntable 111, positioning fixture 112, vibratory feeder 120, accommodating cavity 121, handling robot 130, first vision inspection module 140, storage hopper 150, shell 160, negative pressure fan 161;

[0028] Second visual detection module 210, positioning mechanism 220, first air blowing component 221, position recognition mechanism 230;

[0029] Visual inspection device 300, third visual inspection module 310, and fourth visual inspection module 320;

[0030] The components include a sorting and feeding mechanism 400, a good product box 410, a waste product box 420, a retesting box 430, a second air blowing assembly 440, a third air blowing assembly 450, and a fourth air blowing assembly 460.

[0031] CCD camera 511, fill light 512, backlight 513, mounting base 521, first moving base 522, connecting base 523, second moving base 524, rack 525, adjusting knob 526, locking component 527. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this utility model, if words such as several, greater than, less than, exceeding, above, below, or within appear, several means one or more, multiple means two or more, greater than, less than, exceeding, etc. are understood to exclude the number itself, and above, below, or within are understood to include the number itself.

[0035] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figure 1 and Figure 2A product appearance and size inspection device includes a body 100, a vision inspection device 300, and a sorting and unloading mechanism 400. The body 100 is equipped with a conveying mechanism 110, a vibratory feeder 120, and a handling robot 130. The vibratory feeder 120 has a receiving cavity 121 for accommodating the product to be tested. The upper side of the receiving cavity 121 is an open structure, and a first vision inspection module 140 is provided above it. The vibratory feeder 120 can vibrate and disperse the product to be tested in the receiving cavity 121. The first vision inspection module 140 can perform orientation positioning and identification of the product to be tested in the receiving cavity 121. The first vision inspection module 140 and the handling robot 130 are connected. The device is electrically connected to and provides feedback identification information to the handling robot 130. The handling robot 130 can grasp the product to be tested in the receiving cavity 121 and transport it to the conveying mechanism 110. The conveying mechanism 110 is used to transport the product to be tested. The vision inspection device 300 is located on the machine body 100 and can perform photo recognition and inspection on the appearance and size information of the product to be tested on the conveying mechanism 110. The sorting and unloading mechanism 400 is located on the machine body 100 and includes a good product box 410 and a waste product box 420. The sorting and unloading mechanism 400 can unload the product that has completed the photo recognition and inspection on the conveying mechanism 110 into the good product box 410 or the waste product box 420.

[0038] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, in use, multiple serrated plastic products 10 to be tested are placed in the accommodating cavity 121. The vibrating plate 120 disperses the products in the accommodating cavity 121. The first vision detection module 140 performs orientation positioning recognition on the products in the accommodating cavity 121 and feeds back the recognition information to the handling robot 130. The handling robot 130 grabs the products in the accommodating cavity 121 according to the recognition information of the first vision detection module 140 and transports them to the conveying mechanism 110. The conveying mechanism 110 transports the serrated plastic products 10 to be tested to the vision detection device. At the corresponding workstation 300, the vision inspection device 300 photographs and identifies the dimensional information of the missing-tooth type plastic product 10 to be tested on the conveying mechanism 110, thereby determining whether its dimensional appearance meets the design requirements and whether it is qualified. Subsequently, the conveying mechanism 110 conveys the missing-tooth type plastic product 10 that has completed the photographic identification and detection to the sorting and unloading mechanism 400. The sorting and unloading mechanism 400 unloads qualified products into the good product box 410 and unqualified products into the waste product box 420 according to the detection results, thus completing the dimensional inspection of the missing-tooth type plastic product 10. This utility model identifies and detects the dimensional appearance of products through vision inspection, which can achieve high-precision dimensional inspection, and has a high degree of automation and inspection efficiency, which is conducive to large-scale production applications.

[0039] In practical applications, the specific structures of the vibratory feeder 120 and the handling robot 130 can be set according to actual usage needs. Since the specific configurations of the vibratory feeder 120 and the handling robot 130 in this utility model embodiment are known to those skilled in the art, they will not be described in detail here.

[0040] In some embodiments, a storage hopper 150 for storing the product to be tested is provided on one side of the vibratory feeder 120. A switch assembly is provided at the outlet of the storage hopper 150. The switch assembly is used to control the opening and closing of the outlet of the storage hopper 150 and is electrically connected to the first vision detection module 140. The first vision detection module 140 can take pictures to identify and detect the remaining amount of the product to be tested in the accommodating cavity 121 and feed back the remaining amount information to the switch assembly. When the outlet of the storage hopper 150 is in the open state, the product to be tested in the storage hopper 150 can be output to the accommodating cavity 121.

[0041] Understandably, such as Figure 2 As shown, a storage hopper 150 is provided on the side of the vibratory feeder 120. A switch assembly (not shown in the figure) is provided at the outlet of the storage hopper 150. In use, a large number of missing-tooth type plastic products 10 can be stored in the storage hopper 150, and a small number of missing-tooth type plastic products 10 can be placed in the receiving cavity 121 of the vibratory feeder 120. As the detection proceeds, the remaining amount of missing-tooth type plastic products 10 in the receiving cavity 121 gradually decreases. While the first vision detection module 140 performs orientation positioning and identification of the products in the receiving cavity 121, it also performs photo identification and detection of the remaining amount. When the remaining amount is lower than the preset value, it can feed back the remaining amount information to the switch assembly. The switch assembly is activated, so that the outlet of the storage hopper 150 is in the open state, thereby allowing the missing-tooth type plastic products 10 in the storage hopper 150 to be output and replenished into the receiving cavity 121, maintaining the continuity of the detection operation and facilitating use. In practical applications, in addition to the above methods, the product to be tested can also be replenished to the accommodating cavity 121 manually at regular intervals. The switching assembly may include a movable baffle, which can be moved to block or unblock the outlet of the storage hopper 150 to realize its opening and closing control, or the opening and closing control can be realized by rotating the baffle, or the opening control can be realized by the valve body. The specific settings can be made according to the actual use needs.

[0042] In some embodiments, a second visual detection module 210 is provided between the conveying mechanism 110 and the vibratory feeder 120. The second visual detection module 210 is set according to the motion path of the handling robot 130 handling the product to be tested. The second visual detection module 210 can take pictures and identify the gripping situation of the product to be tested on the handling robot 130.

[0043] Understandably, such as Figure 2 and Figure 4As shown, the second vision inspection module 210 is located between the conveying mechanism 110 and the vibrating plate 120. In use, after the handling robot 130 grasps the tooth-deficient plastic product 10 from the receiving cavity 121, it first transfers the grasped tooth-deficient plastic product 10 to the second vision inspection module 210. The second vision inspection module 210 then photographs and identifies the grasping status of the product on the handling robot 130 to determine if its gripping position and orientation are correct. After confirming that the detection is correct, the handling robot 130 then transfers the grasped tooth-deficient plastic product 10 to the conveying mechanism 110. This helps ensure the accuracy of subsequent inspections and facilitates use. In practical applications, the second vision inspection module 210 can be configured according to actual usage needs.

[0044] In some embodiments, the conveying mechanism 110 includes a turntable 111 and a driver connected to the turntable 111. The driver is used to drive the turntable 111 to rotate. The turntable 111 is provided with a plurality of positioning fixtures 112. The plurality of positioning fixtures 112 are evenly spaced around the rotation axis of the turntable 111. The positioning fixtures 112 are used for the product to be tested on the turntable 111 to abut against, so that the product to be tested is positioned and placed.

[0045] Understandably, such as Figure 2 and Figure 3 As shown, the turntable 111 is equipped with multiple positioning fixtures 112, which are evenly spaced around the rotation axis of the turntable 111. A driver (not shown) is connected to the turntable 111 to drive its rotation. In use, the handling robot 130 places the gripped, tooth-deficient plastic product 10 onto the turntable 111 and abuts it against the positioning fixture 112. The positioning fixture 112 positions the product to be tested, which helps ensure the accuracy of subsequent testing and facilitates use. In practical applications, the conveying mechanism 110 can also be a belt conveyor structure. The positioning fixtures 112 can be of various models to meet the positioning requirements of different product models. The positioning fixtures 112 can also be detachable, allowing for the replacement of different positioning fixtures to meet the positioning requirements of different products. The specific structure and number of positioning fixtures 112 can be set according to actual usage needs.

[0046] In some embodiments, a positioning mechanism 220 and a position recognition mechanism 230 are provided on one side of the turntable 111. The positioning mechanism 220 and the position recognition mechanism 230 are arranged sequentially along the conveying direction of the product to be tested on the turntable 111. The positioning mechanism 220 is used to make the product to be tested on the turntable 111 abut against the positioning fixture 112. The position recognition mechanism 230 is used to identify the positioning trigger origin position of the product to be tested on the turntable 111. The position recognition mechanism 230 is electrically connected to the vision inspection device 300 and feeds back the position recognition information to the vision inspection device 300.

[0047] Understandably, such as Figure 2 and Figure 5 As shown, the positioning mechanism 220 and the position recognition mechanism 230 are located on the side of the turntable 111. In use, the turntable 111 rotates, transporting the toothed plastic product 10 to the positioning mechanism 220. Since the handling robot 130 may not place the toothed plastic product 10 on the turntable 111 properly, or may accidentally touch the product after placement, causing it to shift, the positioning mechanism 220 can be used to make the toothed plastic product 10 on the turntable 111 abut against the positioning fixture 112, ensuring the effective positioning of the product under test and improving reliability. Subsequently, the turntable 111 continues to rotate, and the toothed plastic product 10 is transported to the position recognition mechanism 230. The position recognition mechanism 230 identifies the positioning trigger origin position of the toothed plastic product 10 on the turntable 111 and feeds back the position recognition information to the vision inspection device 300, providing sequential position information for subsequent visual inspection of the product, which helps to ensure the accuracy of the inspection and facilitates use. In practical applications, the position recognition mechanism 230 can use photoelectric sensors to locate the product under test and trigger the origin position recognition, or it can be recognized by visual inspection. The specific settings can be made according to the actual needs of use.

[0048] In some embodiments, the positioning mechanism 220 includes a first air blowing assembly 221, which is used to blow air onto the product to be tested on the turntable 111, so that the product to be tested is blown to abut against the positioning fixture 112.

[0049] Understandably, such as Figure 5 As shown, multiple first air-blowing components 221 are provided to correspond to different models of positioning fixtures 112. When the toothed plastic product 10 on the turntable 111 is conveyed to the corresponding station of the positioning mechanism 220, the first air-blowing components 221 blow air onto the toothed plastic product 10 on the turntable 111, causing the toothed plastic product 10 to be blown against the positioning fixture 112, thereby ensuring reliable positioning of the toothed plastic product 10. Its structure is simple and easy to use. In practical applications, in addition to the above structure, the positioning mechanism 220 can also push the product to be tested to move through a movable pushing member, so that it abuts against the positioning fixture 112. The specific settings can be adjusted according to actual usage needs.

[0050] In some embodiments, the visual inspection device 300 includes a third visual inspection module 310 and a fourth visual inspection module 320. The third visual inspection module 310 is provided with at least one and is used to perform top-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism 110. The fourth visual inspection module 320 is provided with at least one and is used to perform side-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism 110.

[0051] Understandably, such as Figure 2 , Figure 6 and Figure 7 As shown, there are two third-vision inspection modules 310 and two fourth-vision inspection modules 320. The two third-vision inspection modules 310 and the two fourth-vision inspection modules 320 are alternately distributed along the conveying direction of the product to be tested on the turntable 111. The third-vision inspection module 310 performs top-down imaging and recognition detection of the appearance and size information of the tooth-type plastic product 10 on the turntable 111 from the top to the bottom, while the fourth-vision inspection module 320 performs side-down imaging and recognition detection of the appearance and size information of the tooth-type plastic product 10 on the turntable 111 from the side. The multiple third-vision inspection modules 310 and fourth-vision inspection modules 320 detect the appearance and size information of the tooth-type plastic product 10 from different angles, which helps to ensure the accuracy of the detection results and facilitates use.

[0052] In practical applications, the specific number and distribution of the third vision inspection module 310 and the fourth vision inspection module 320 can be set according to the actual needs. They can also be used to perform oblique photography and recognition detection of the appearance and size information of the product under test in a normally tilted direction. The specific settings can be changed according to the actual needs.

[0053] In some embodiments, the sorting and unloading mechanism 400 includes a second air blowing assembly 440 and a third air blowing assembly 450. The second air blowing assembly 440 is configured to correspond to the good product box 410 and can blow products that have completed photo recognition and detection and passed the detection on the conveying mechanism 110 to the good product box 410. The third air blowing assembly 450 is configured to correspond to the waste product box 420 and can blow products that have completed photo recognition and detection and failed the detection on the conveying mechanism 110 to the waste product box 420.

[0054] Understandably, such as Figure 2 and Figure 8As shown, the good product box 410 and the waste product box 420 are located on the side of the turntable 111. The second air blowing component 440 is set corresponding to the good product box 410, and the third air blowing component 450 is set corresponding to the waste product box 420. When a qualified defective plastic product 10 is conveyed to the corresponding position of the good product box 410 by the turntable 111, the second air blowing component 440 blows it to the good product box 410 to realize the unloading and collection of qualified products. When a defective defective plastic product 10 is conveyed to the corresponding position of the waste product box 420 by the turntable 111, the third air blowing component 450 blows it to the waste product box 420 to realize the unqualified product unloading and collection. Its structure is simple and easy to use. In practical applications, in addition to the above structure, the sorting and unloading mechanism 400 can also use a rotating lever or a moving push rod to move or push the products that have completed the inspection on the turntable 111 to the corresponding material box to achieve sorting and unloading. The specific settings can be made according to the actual needs of use.

[0055] In some embodiments, the sorting and unloading mechanism 400 includes a retesting box 430 and a fourth air blowing assembly 460. The fourth air blowing assembly 460 is configured to correspond to the retesting box 430 and can blow products that have been photographed and identified on the conveying mechanism 110 but whose qualification cannot be accurately determined to be qualified to the retesting box 430.

[0056] Understandably, such as Figure 2 and Figure 8 As shown, the sorting and feeding mechanism 400 also includes a retesting box 430, which is located on the side of the turntable 111. A fourth air blowing component 460 is positioned corresponding to the retesting box 430. During visual inspection, when the outline of a missing-tooth type plastic product 10 is blurred and its dimensional appearance cannot be determined, it can be marked as a product requiring retesting. When it is transported to the corresponding position in the retesting box 430, the fourth air blowing component 460 blows it into the retesting box 430, thus collecting and feeding the retesting product. This avoids misjudgment of critical values ​​when the outline is blurred, ensuring the accuracy of the inspection results. In practical applications, the retesting box 430 and the fourth air blowing component 460 can be configured according to actual usage needs.

[0057] In some embodiments, the machine body 100 is provided with a housing 160, and a test cavity is provided inside the housing 160. The conveying mechanism 110, the vibrating plate 120 and the visual inspection device 300 are all provided in the test cavity. The housing 160 is connected to a negative pressure fan 161, which can suck and exhaust air from the test cavity to create a negative pressure environment in the test cavity.

[0058] Understandably, such as Figure 1As shown, the upper side of the machine body 100 is provided with a housing 160. The conveying mechanism 110, vibratory feeder 120, and visual inspection device 300 are all located in the testing cavity of the housing 160. A negative pressure fan 161 is connected to the upper side of the housing 160. During use, the negative pressure fan 161 draws air from the testing cavity to create a negative pressure environment, which reduces air disturbance and the possibility of product slippage or displacement. This makes the missing-tooth type plastic product 10 more stable when placed on the turntable 111, facilitating inspection. In actual applications, the specific structure of the housing 160 and the setting of the negative pressure fan 161 can be set according to actual usage needs.

[0059] In this invention, the visual inspection mentioned is a method of measurement and judgment using machines instead of human eyes. It uses machine vision products (i.e., image acquisition devices, either CMOS or CCD) to convert the captured target into image signals, which are then transmitted to a dedicated image processing system. Based on pixel distribution and information such as brightness and color, these signals are converted into digital signals. The image system performs various calculations on these signals to extract the target's features, thereby detecting the required information such as position, quantity, and size. All visual inspection modules mentioned in this invention include a CCD camera 511. Some visual inspection modules also include supplementary lighting 512 for frontal light source from the shooting direction, such as the second visual inspection module 210 and the third visual inspection module 310. The third visual inspection module 310 also includes a backlight 513 for rearal light source from the shooting direction, providing a stable light source output for CCD camera 511 imaging.

[0060] Since other components of the visual detection in this embodiment are known to those skilled in the art, they will not be described in detail here.

[0061] In this utility model, reference is made to Figures 2 to 7 The first visual detection module 140, the second visual detection module 210, the positioning mechanism 220, the position recognition mechanism 230, the third visual detection module 310, and the fourth visual detection module 320 are all connected to the body 100 via an adjustable mounting structure, such as... Figures 4 to 7As shown, the adjustable mounting structure includes a fixed base 521, a first movable base 522, a connecting base 523, and a second movable base 524. The fixed base 521 is fixedly mounted on the body 100. The first movable base 522 is slidably connected to the fixed base 521 and can move horizontally relative to the fixed base 521. The connecting base 523 is mounted on the first movable base 522. The second movable base 524 is slidably connected to the connecting base 523 and can move longitudinally relative to the connecting base 523. The positioning mechanism 220 or vision inspection module is mounted on the corresponding second movable base 524. The position adjustment of the corresponding mechanism or module can be achieved by the horizontal movement of the first movable base 522 and the longitudinal movement of the second movable base 524.

[0062] Specifically, refer to Figures 4 to 7 Both the fixed seat 521 and the connecting seat 523 are equipped with racks 525. The rack 525 on the fixed seat 521 extends along the moving direction of the first movable seat 522, and the rack 525 on the connecting seat 523 extends along the moving direction of the second movable seat 524. Adjustment knobs 526 are rotatably connected to both the first movable seat 522 and the second movable seat 524. The adjustment knobs 526 are connected to gears (not shown in the figure) that mesh with the racks 525. Locking members 527 are threadedly connected to both the first movable seat 522 and the second movable seat 524. In use, the locking member 527 is loosened, and the adjustment knob 526 is rotated. The rack and pinion 525 drive the corresponding movable seat to move. After it reaches its position, the locking member 527 is tightened, causing it to abut against the corresponding fixed seat 521 or connecting seat 523, thereby locking and fixing the corresponding movable seat. Its structure is simple and convenient for position adjustment.

[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A product appearance size detection apparatus characterized by comprising: include: The machine body includes a conveying mechanism, a vibratory feeder, and a handling robot. The vibratory feeder has a cavity for holding the product to be tested. The upper side of the cavity is open and a first visual detection module is located above it. The vibratory feeder can disperse the vibration of the product to be tested in the cavity. The first visual detection module can identify the orientation of the product to be tested in the cavity. The first visual detection module is electrically connected to the handling robot and feeds back the identification information to the handling robot. The handling robot can grasp the product to be tested in the cavity and transport it to the conveying mechanism. The conveying mechanism is used to transport the product to be tested. A visual inspection device is installed on the machine body and is capable of photographing and recognizing the appearance and size information of the product to be tested on the conveying mechanism. A sorting and unloading mechanism is provided on the machine body and includes a good product box and a waste product box. The sorting and unloading mechanism can unload products that have completed photo recognition and detection on the conveying mechanism into the good product box or the waste product box.

2. The product appearance dimension detecting apparatus according to claim 1, wherein The vibratory feeder has a storage hopper on one side for storing the product to be tested. The outlet of the storage hopper is equipped with a switch assembly. The switch assembly is used to control the opening and closing of the outlet of the storage hopper and is electrically connected to the first vision detection module. The first vision detection module can take pictures to identify and detect the remaining amount of the product to be tested in the accommodating cavity and feed back the remaining amount information to the switch assembly. When the outlet of the storage hopper is in the open state, the product to be tested in the storage hopper can be output to the accommodating cavity.

3. The product appearance and dimension inspection equipment according to claim 1, characterized in that, A second visual detection module is provided between the conveying mechanism and the vibratory feeder. The second visual detection module is set according to the motion path of the handling robot arm handling the product to be tested. The second visual detection module can take pictures and identify the gripping situation of the product to be tested by the handling robot arm.

4. The product appearance and dimension inspection equipment according to claim 1, characterized in that, The conveying mechanism includes a turntable and a driver connected to the turntable. The driver is used to drive the turntable to rotate. The turntable is provided with a plurality of positioning fixtures. The plurality of positioning fixtures are evenly spaced around the rotation axis of the turntable. The positioning fixtures are used for the product to be tested on the turntable to abut against, so as to position the product to be tested.

5. The product appearance and dimension inspection equipment according to claim 4, characterized in that, A positioning mechanism and a position recognition mechanism are provided on one side of the turntable. The positioning mechanism and the position recognition mechanism are arranged sequentially along the conveying direction of the product to be tested on the turntable. The positioning mechanism is used to make the product to be tested on the turntable abut against the positioning fixture. The position recognition mechanism is used to identify the positioning trigger origin position of the product to be tested on the turntable. The position recognition mechanism is electrically connected to the visual inspection device and feeds back the position recognition information to the visual inspection device.

6. The product appearance and dimension inspection equipment according to claim 5, characterized in that, The positioning mechanism includes a first air blowing component, which is used to blow air onto the product to be tested on the turntable, so that the product to be tested is blown to abut against the positioning fixture.

7. The product appearance and dimension inspection equipment according to claim 1, characterized in that, The visual inspection device includes a third visual inspection module and a fourth visual inspection module. The third visual inspection module is equipped with at least one and is used to perform top-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism. The fourth visual inspection module is equipped with at least one and is used to perform side-view photographic recognition and inspection of the appearance and size information of the product to be tested on the conveying mechanism.

8. The product appearance and dimension inspection equipment according to claim 1, characterized in that, The sorting and feeding mechanism includes a second air blowing component and a third air blowing component. The second air blowing component is set to the good product box and can blow the products that have completed the photo recognition and detection on the conveying mechanism and passed the detection to the good product box. The third air blowing component is set to the waste product box and can blow the products that have completed the photo recognition and detection on the conveying mechanism and failed the detection to the waste product box.

9. The product appearance and dimension inspection equipment according to claim 8, characterized in that, The sorting and feeding mechanism includes a retesting box and a fourth air blowing component. The fourth air blowing component is set to correspond to the retesting box and can blow products that have been photographed and identified on the conveying mechanism but whose qualification cannot be accurately determined to be qualified to the retesting box.

10. The product appearance and dimension inspection equipment according to claim 1, characterized in that, The machine body is provided with a shell, and a test cavity is provided inside the shell. The conveying mechanism, the vibrating plate and the visual inspection device are all located in the test cavity. The shell is connected to a negative pressure fan, which can suck and exhaust air from the test cavity to create a negative pressure environment in the test cavity.

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