Appearance inspection apparatus

Abstract

The application discloses appearance detection equipment, including: conveying line, for conveying product to be detected, the conveying line has a material receiving position and a detection position; the transfer module is arranged below the conveying line, the transfer module includes a horizontal movement mechanism and a pick-and-place assembly, the horizontal movement mechanism drives the pick-and-place assembly to reciprocate between the material receiving position and the detection position, and the pick-and-place assembly is used for conveying the product to be detected from the material receiving position to the detection position; and a detection device is arranged at the detection position, and the detection device is used for detecting the product to be detected on the detection position. The appearance detection device provided by the technical scheme of the application can realize automatic conveying and detection, reduce the work intensity, improve the precision of product detection, and ensure the yield of products.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a visual inspection device. Background Technology

[0002] Most fixtures in the production line are characterized by fast conveying and turnover speed and short inspection time. Moreover, the fixtures are generally heavy, and manual inspection takes a long time. In addition, manual inspection requires moving the fixtures, which is labor-intensive, inefficient, unstable, and also carries certain risks. Summary of the Invention

[0003] The main objective of this invention is to provide an appearance inspection device that addresses the current technical problems of relying on manual labor for fixture appearance inspection, which results in high labor intensity and low efficiency.

[0004] To achieve the above objectives, the present invention provides an appearance inspection device comprising:

[0005] A conveyor line for conveying products to be tested, the conveyor line having a receiving position and a detection position;

[0006] A transfer module, disposed below the conveyor line, includes a traversing mechanism and a pick-and-place component. The traversing mechanism drives the pick-and-place component to reciprocate between the receiving position and the detection position. The pick-and-place component is used to transfer the product to be tested from the receiving position to the detection position.

[0007] A detection device is provided at the detection position, and the detection device is used to detect the product to be tested at the detection position.

[0008] Optionally, the transverse mechanism is connected to a support frame, the pick-and-place component is disposed on the support frame, the transverse mechanism is provided with a support rail, the extension direction of the support rail is consistent with the extension direction of the conveyor line, and the support frame moves along the support rail to cause the pick-and-place component to reciprocate between the receiving position and the detection position.

[0009] Optionally, the pick-and-place assembly includes a receiving platform and a lifting member. The receiving platform is located on the side of the support frame facing the conveyor line and is used to receive the product to be tested. The lifting member is located on the support frame and is driven to connect with the receiving platform. The lifting member drives the receiving platform to move closer to the conveyor line to lift the product to be tested away from the conveyor line.

[0010] Optionally, the receiving platform is provided with a receiving column, the receiving column is provided with a positioning pin, the product to be tested is provided with a positioning hole, and the lifting component drives the receiving platform to lift so that the positioning pin is inserted into the positioning hole.

[0011] Optionally, the receiving platform is provided with a backlight source, which is located in the space formed by the receiving column and the receiving platform, and emits light toward the product to be tested.

[0012] Optionally, the appearance inspection equipment further includes a positioning device located at the receiving position to prevent the product to be tested from moving along the conveyor line.

[0013] Optionally, the positioning device includes a first blocking member and a second blocking member, and the receiving position includes a first sub-position and a second sub-position, with the first blocking member disposed at the first sub-position and the second blocking member disposed at the second sub-position.

[0014] Optionally, the pick-and-place assembly is provided in two sets, and the two sets of pick-and-place assemblies are arranged side by side on the support frame along the extension direction of the transverse mechanism. One set of the pick-and-place assemblies receives the product to be tested in the first sub-position, and the other set of the pick-and-place assemblies receives the product to be tested in the second sub-position. The transverse mechanism drives the two sets of pick-and-place assemblies to pass through the detection position in sequence.

[0015] Optionally, the first blocking member includes a telescopic member and a blocking wheel. The blocking wheel is disposed at one end of the telescopic member. The telescopic member extends to allow the blocking wheel to contact the edge of the product under test, thereby preventing the product under test from moving.

[0016] Optionally, the appearance inspection equipment further includes a scanning device. The product to be tested has an information code. The scanning device is located on the conveyor line and is used to scan the information code of the product to be tested.

[0017] This invention utilizes a conveyor line to transport the product under test and a testing device to inspect it. Furthermore, a transfer module transports the product to the testing position for inspection, achieving automated fixture transport and inspection. This eliminates the need for manual handling of the fixture, reducing labor intensity, improving inspection efficiency, and preventing hazards during fixture transport. Specifically, by setting a receiving position and a testing position on the conveyor line, a traversing mechanism drives a pick-and-place assembly to reciprocate between these positions, transporting the product under test from the receiving position to the testing position. The traversing mechanism and pick-and-place assembly also improve the stability of the fixture during inspection, increasing inspection accuracy and ultimately improving product yield. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the appearance inspection device of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of an embodiment of the appearance inspection device of the present invention;

[0021] Figure 3 This is a schematic diagram of the transfer module structure of an embodiment of the appearance inspection device of the present invention;

[0022] Figure 4 This is a schematic diagram of the support frame and pick-and-place assembly of an embodiment of the appearance inspection device of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first blocking member in an embodiment of the appearance inspection device of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second blocking member in an embodiment of the appearance inspection device of the present invention.

[0025] Explanation of icon numbers:

[0026]

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] This invention proposes an appearance inspection device.

[0033] In existing technologies, most fixtures in production lines are characterized by fast conveying and turnover speed and short inspection time. Moreover, the fixtures are generally heavy, and manual inspection takes a long time. In addition, manual inspection requires moving the fixtures, which is labor-intensive, inefficient, unstable, and carries certain risks.

[0034] To address the aforementioned technical problems, the present invention employs a conveyor line to transport the product under test and a testing device to inspect it. Furthermore, a transfer module transports the product to the testing position for inspection, achieving automated fixture transport and inspection. This eliminates the need for manual handling of the fixture, reducing labor intensity, improving inspection efficiency, and preventing hazards during fixture transport. Specifically, by setting a receiving position and a testing position on the conveyor line, a traversing mechanism drives a pick-and-place assembly to reciprocate between these positions, transporting the product under test from the receiving position to the testing position. The traversing mechanism and pick-and-place assembly also improve the stability of the fixture during inspection, increase inspection accuracy, and ultimately improve product yield.

[0035] The above technical solution will be described in detail below with reference to the accompanying drawings.

[0036] In embodiments of the present invention, such as Figures 1-6 As shown, the appearance inspection equipment includes: a conveyor line 100, a transfer module 200, and an inspection device 300. The conveyor line 100 is used to transport the product to be tested, and has a receiving position 110 and an inspection position 120. The transfer module 200 is located below the conveyor line 100, and includes a traversing mechanism 210 and a pick-and-place assembly 220. The traversing mechanism 210 drives the pick-and-place assembly 220 to reciprocate between the receiving position 110 and the inspection position 120. The pick-and-place assembly 220 is used to transport the product to be tested from the receiving position 110 to the inspection position 120. The inspection device 300 is located at the inspection position 120 and is used to inspect the product to be tested at the inspection position 120.

[0037] In specific implementation, the conveyor line 100 uses conveyor belts to transport fixtures, and the conveyor line 100 includes a conveyor frame. It is understood that conveyor belts are provided on both sides of the conveyor frame, and the two conveyor belts contact the opposite bottom surfaces of the fixture, thereby transporting the fixture. The open space between the two conveyor belts facilitates the movement of the transfer module 200. In this embodiment, the transfer module 200 is located below the conveyor line 100, allowing the pick-and-place component 220 to pick up and place the fixture in the space between the two conveyor belts.

[0038] Specifically, the extension direction of the transverse mechanism 210 is consistent with the extension direction of the conveyor line 100, and the transverse mechanism 210 can be a motor screw slider mechanism or a transverse cylinder mechanism, which is not limited in this embodiment. The transverse mechanism 210 drives the pick-and-place assembly 220 to move along the conveyor line 100. In the specific implementation process, the pick-and-place assembly 220 receives the product to be tested at the receiving position 110. The transverse structure drives the pick-and-place assembly 220 to move to the detection position 120. After the detection is completed, the pick-and-place assembly 220 places the product on the conveyor line 100, and the conveyor line 100 transports the product to the next process.

[0039] The detection device 300 includes a camera bracket and a camera, such as a CCD camera. The camera bracket spans both sides of the conveyor line 100, allowing the camera to take pictures of the product under test below. The image information and results are stored in the product's information code. The detection device 300 also includes a light source that emits light towards the product under test, improving image clarity and thus detection accuracy. The detection device 300 also includes a surrounding panel that encloses the camera and light source to ensure image accuracy. Additionally, a power supply is provided on the conveyor line 100 to power the detection device 300.

[0040] In this embodiment, when the conveyor line 100 transports the product to be tested to the receiving position 110, the sensor at the receiving position 110 detects the fixture and transmits a signal to the transfer module 200. The lateral movement mechanism 210 drives the pick-and-place component 220 to move to the receiving position 110. The pick-and-place component 220 senses the fixture through the sensor and then lifts or grabs the fixture to make it leave the conveyor line 100. After receiving the signal from the pick-and-place component 220, the lateral movement module drives the pick-and-place component 220 to the detection position 120. After the detection position 120 senses the product to be tested, it performs light and photographic detection. After the detection is completed, it sends a signal to the transfer module 200. The transfer module 200 drives the pick-and-place component 220 to place the product on the conveyor line 100. Then, the lateral movement module receives the signal that the pick-and-place component 220 has completed placement and drives the pick-and-place component 220 to the receiving position 110 to stand by. In this way, the fixture can be automatically inspected on the conveyor line 100 without relying on manual handling, and the stability of the product under test can be improved by the transfer module 200, thereby improving the inspection accuracy.

[0041] Furthermore, the transverse mechanism 210 is connected to a support frame 230, the pick-and-place component 220 is disposed on the support frame 230, the transverse mechanism 210 is provided with a support rail, the extension direction of the support rail is consistent with the extension direction of the conveyor line 100, the support frame 230 moves along the support rail to cause the pick-and-place component 220 to reciprocate between the receiving position 110 and the detection position 120.

[0042] In this embodiment, the pick-and-place component 220 is fixed on the support frame 230, and the transverse mechanism 210 is connected to the support frame 230 and drives the support frame 230 to move, thereby causing the pick-and-place component 220 to move along the transverse mechanism 210. Specifically, the support frame 230 includes two support plates, the lower support plate is connected to the slider of the transverse mechanism 210, and the pick-and-place component 220 is fixedly connected to the upper support plate.

[0043] Further, refer to Figures 3-4 As shown, the pick-and-place assembly 220 includes a receiving platform 221 and a lifting member 222. The receiving platform 221 is located on the side of the support frame 230 facing the conveyor line 100 and is used to receive the product to be tested. The lifting member 222 is located on the support frame 230 and is drivenly connected to the receiving platform 221. The lifting member 222 drives the receiving platform 221 to move closer to the conveyor line 100 to lift the product to be tested away from the conveyor line 100.

[0044] The lifting component 222 is fixed to the support frame 230, and its top is fixed to the upper support plate of the support frame 230, so as to be accommodated between the upper and lower support plates. In specific implementation, the lifting component 222 can be a cylinder or hydraulic cylinder, etc. The lifting component 222 has a telescopic rod 411, which extends out of the top of the support frame 230 and connects to the receiving platform 221. The telescopic rod 411 extends and retracts to drive the receiving platform 221 to rise and fall, thereby picking up and placing the product to be tested on the conveyor line 100. Specifically, the lifting component 222 drives the telescopic rod 411 to extend, causing the receiving platform 221 to rise from below the product to be tested and receive the product, thereby causing the product to be tested to leave the conveyor belt of the conveyor line 100. The lateral movement mechanism 210 drives the support frame 230 to move, causing the receiving platform 221 and the product to be tested to move to the detection position 120. When the product is detected at the detection position 120, it is always on the receiving platform 221. When the lateral movement module drives the receiving platform 221 and the product to be tested to reach the detection position 120, it stops. After the camera takes a picture and detects the product, the lifting component 222 drives the telescopic rod 411 to retract, causing the receiving platform 221 to descend and place the product to be tested on the conveyor line 100. The conveyor line 100 then transports the product to the next process.

[0045] Furthermore, the receiving platform 221 is provided with a receiving column 223, the receiving column 223 is provided with a positioning pin 224, the product to be tested is provided with a positioning hole, and the lifting member 222 drives the receiving platform 221 to lift so that the positioning pin 224 is inserted into the positioning hole.

[0046] The top of the receiving platform 221 is equipped with multiple receiving columns 223, the fixed positions of which are designed according to the shape characteristics of the product to be tested. Specifically, the top of the receiving column 223 is equipped with a positioning pin 224, and the product to be tested has a positioning hole. The actual position of the receiving column 223 on the receiving platform 221 is set according to the position of the positioning hole of the product to be tested. Understandably, in the specific implementation process, the product to be tested is placed on a fixture, which is in contact with the conveyor line 100 to transport the product. The surface of the product to be tested is exposed on the upward-facing side of the fixture, facilitating the detection device 300 to take pictures and detect it. In this way, the fixture only needs to have positioning holes, and the product can also be protected from damage. Specifically, the lifting component 222 drives the receiving platform 221 to rise, causing the positioning pin 224 to be inserted into the positioning hole, thereby fixing the fixture and making it stable on the receiving platform 221 to prevent it from falling. In addition, the sensing device can be fixed to the side wall of the receiving column 223 for easy sensing of the product to be tested and the fixture.

[0047] Optionally, a backlight 240 is provided on the receiving platform 221. The backlight 240 is located within the space formed by the receiving column 223 and the receiving platform 221, and emits light towards the product to be tested. In specific implementation, the transverse mechanism 210 drives the receiving platform 221 to carry the product to be tested to the detection position 120, and the product is located on the receiving platform 221 during detection. To improve the accuracy of product photography, this embodiment provides a backlight 240 on the receiving platform to increase the brightness during photography detection, thereby improving the clarity of the photograph and improving the accuracy of detection, ensuring the yield of the product. Specifically, multiple support columns and the receiving platform 221 surround to form a backlight space, and the backlight 240 is housed within the backlight space.

[0048] Optionally, refer to Figure 2 As shown, the appearance inspection equipment also includes a positioning device 400, which is located at the receiving position 110 and is used to prevent the product to be tested from moving along the conveyor line 100.

[0049] During the process of conveying the product to be tested by the conveyor line 100, when the product to be tested reaches the receiving position 110, the conveyor line 100 does not stop, and the receiving component cannot accurately receive the product to be tested. Therefore, in this embodiment, a positioning device 400 is used to block the front side wall of the product to be tested, so that the product to be tested stops moving when it reaches the receiving position 110, waiting for the receiving component to receive and lift the product to be tested. In specific implementation, when the positioning device 400 senses that the product to be tested has moved to the corresponding position, the positioning device 400 extends to block the side wall of the product to be tested. Specifically, the positioning device 400 includes a sensor and a drive cylinder. When the sensor senses the product to be tested and is triggered, it drives the drive cylinder to extend the telescopic rod 411, thereby blocking the product to be tested from moving with the conveyor belt. When the traverse mechanism 210 drives the receiving component to receive the product to be tested and move it, the positioning device 400 moves, causing the telescopic rod 411 to retract, so as not to affect the movement of the receiving component. Of course, it is understandable that the conveyor line 100 in the material receiving position 110 is also equipped with a limit cylinder to control the interval between the products to be tested, and to ensure that the positioning component can be smoothly blocked on the side wall of the product to be tested. In the specific implementation process, when the positioning component moves to block the product to be tested, the limit cylinder moves and extends at the same time to block the forward direction of the product to be tested, so as to avoid the products to be tested being too close together.

[0050] Furthermore, the positioning device 400 includes a first blocking member 410 and a second blocking member 420, and the receiving position 110 includes a first sub-position 111 and a second sub-position 112, with the first blocking member 410 disposed at the first sub-position 111 and the second blocking member 420 disposed at the second sub-position 112.

[0051] In this embodiment, the first sub-position 111 and the second sub-position 112 are arranged side by side along the conveying direction of the conveyor line 100, and the interval between the first sub-position 111 and the second sub-position 112 can accommodate a product to be tested or its fixture. Correspondingly, the positioning device 400 includes a first blocking member 410 and a second blocking member 420. The first blocking member 410 is located in front of the first sub-position 111 in the conveying direction, and the second blocking member 420 is located in front of the second sub-position 112 in the conveying direction. Both the first blocking member 410 and the second blocking member 420 can be cylinder structures. Specifically, the cylinder structure is fixed above the conveyor line 100 by a cylinder fixing bracket.

[0052] refer to Figures 5-6 As shown, in the specific implementation process, the first blocking member 410 and the second blocking member 420 cooperate to sense and act. Specifically, when the product under test reaches the first sub-position 111, the first blocking member 410 senses the product under test and triggers to block in front of the product under test. At this time, no product under test is being conveyed to the second sub-position 112. The second blocking member 420 does not sense the product under test and generates a signal to drive the first blocking member 410 to rise, allowing the product under test to continue to be conveyed to the second sub-position 112. The second blocking member 420 senses the product under test and triggers to block in front of the product under test. At the same time, the conveyor belt conveys the next product under test to the first sub-position 111, and the first blocking cylinder is triggered again to block in front of the product under test.

[0053] Accordingly, in this embodiment, the pick-and-place assembly 220 is provided in two sets. The two sets of pick-and-place assemblies 220 are arranged side by side on the support frame 230 along the extension direction of the transverse mechanism 210. One set of pick-and-place assemblies 220 receives the product to be tested at the first sub-position 111, and the other set of pick-and-place assemblies 220 receives the product to be tested at the second sub-position 112. The transverse mechanism 210 drives the two sets of pick-and-place assemblies 220 to pass through the detection position 120 in sequence.

[0054] The distance between the two sets of pick-and-place components 220 is set to correspond to the first sub-position 111 and the second sub-position 112, so that the transverse module drives the two pick-and-place components 220 to simultaneously pick up the products to be tested at the first sub-position 111 and the second sub-position 112. The transverse module carries the two products to be tested simultaneously through the detection device 300 of the detection position 120 for photographic detection, which can improve the efficiency of product detection while ensuring the stability and accuracy of product detection.

[0055] In practical implementation, when the transverse mechanism 210 drives the receiving assembly to take pictures of the two products to be tested at the detection position 120, the first sub-position 111 and the second sub-position 112 can simultaneously perform receiving blocking positioning. After the product testing is completed and placed on the conveyor line 100, the transverse mechanism 210 drives the receiving assembly to reset to the receiving position 110 to receive the next set of products to be tested. This process is repeated to realize automatic product conveying and testing, reduce manual labor intensity, and improve product stability.

[0056] Optionally, the first blocking member 410 includes a telescopic member and a blocking wheel 412. The blocking wheel 412 is disposed at one end of the telescopic member. The telescopic member extends to allow the blocking wheel 412 to contact the edge of the product under test, thereby preventing the product under test from moving.

[0057] In the specific implementation process, the first blocking member 410 is closer to the incoming direction of the product to be tested than the second blocking member 420, and the first blocking member 410 is subjected to a greater impact. Therefore, in this embodiment, referring to Figure 5 As shown, a blocking wheel 412 is provided at the telescopic end of the first blocking member 410. Specifically, a groove is formed at the end of the telescopic rod 411, and the blocking wheel 412 is rotatably connected in the groove. The groove extends from the bottom of the blocking wheel 412, and one side of the blocking wheel 412 extends outward from the side wall of the telescopic rod 411 towards the material feeding direction, so that the blocking wheel 412 contacts the side wall of the product to be tested or the fixture. The axis of the blocking wheel 412 is perpendicular to the conveying direction. When contacting the product to be tested, the blocking wheel 412 can rotate to buffer the impact of the product. The blocking wheel 412 is made of a flexible material with a certain degree of elasticity, which also helps to buffer the impact of the product to be tested. It is understood that the rotation distance and elastic compression distance of the blocking wheel 412 are within a precision range to ensure that the receiving assembly and the product to be tested can be properly connected. In addition, the product under test may bounce back due to the impact after encountering an obstruction. However, under the continued conveying action of the conveyor line 100, the product under test is still conveyed to the side of the first obstruction 410. At this time, the impact on the product under test is greatly reduced or negligible, so that the receiving component can smoothly receive the product under test.

[0058] Optionally, the appearance inspection equipment further includes a scanning device 500. The product to be tested has an information code. The scanning device 500 is located on the conveyor line 100 and is used to scan the information code of the product to be tested.

[0059] In the specific implementation process, before testing, the product to be tested first has its information code scanned by a barcode scanner to obtain the corresponding product information, which is then transmitted to the entire testing device 300 system. After testing, photos of the test results and the information code can also be saved to the information code. Furthermore, the information code is located on the product to be tested, with each product corresponding to a unique information code. This information code stores the product's traceability information, such as specific details of each process and the corresponding operator, etc., facilitating rework of the corresponding process when problems are found during testing.

[0060] Furthermore, in this embodiment, since the conveyor line 100 is constantly rotating and conveying throughout the entire process of receiving and inspecting materials, and the product under test is stopped at the receiving position 110 by the positioning device 400, friction will occur between the product under test and the conveyor belt. To avoid wear on the product under test caused by the conveyor belt, the product under test is generally fixed on a fixture, with the fixture contacting the conveyor belt. Further, the part of the fixture that contacts the conveyor belt can be equipped with rotating components, such as rotating wheels or rollers, etc., which contact the conveyor belt to avoid friction. Of course, the materials of the fixture and the conveyor belt can be changed, using wear-resistant materials, etc., to reduce wear.

[0061] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An appearance inspection device, characterized in that, include: A conveyor line for conveying products to be tested, the conveyor line having a receiving position and a detection position; A transfer module is located below the conveyor line. The transfer module includes a traversing mechanism and a pick-and-place component. The traversing mechanism drives the pick-and-place component to reciprocate between the receiving position and the detection position. The pick-and-place component is used to transport the product to be tested from the receiving position to the detection position. as well as A detection device is provided at the detection position, and the detection device is used to detect the product to be tested at the detection position; The transverse mechanism is connected to a support frame, the pick-and-place component is disposed on the support frame, the transverse mechanism is provided with a support rail, the extension direction of the support rail is consistent with the extension direction of the conveyor line, and the support frame moves along the support rail to cause the pick-and-place component to reciprocate between the receiving position and the detection position. The appearance inspection equipment also includes a positioning device, which is located at the receiving position to prevent the product to be tested from moving along the conveyor line; The positioning device includes a first blocking member and a second blocking member, and the receiving position includes a first sub-position and a second sub-position, wherein the first blocking member is disposed at the first sub-position and the second blocking member is disposed at the second sub-position; The pick-and-place assembly is provided in two sets, which are arranged side by side on the support frame along the extension direction of the transverse mechanism. One set of the pick-and-place assembly receives the product to be tested in the first sub-position, and the other set receives the product to be tested in the second sub-position. The transverse mechanism drives the two sets of pick-and-place assemblies to pass through the detection position in sequence.

2. The appearance inspection device as described in claim 1, characterized in that, The pick-and-place assembly includes a receiving platform and a lifting component. The receiving platform is located on the side of the support frame facing the conveyor line and is used to receive the product to be tested. The lifting component is located on the support frame and is driven to connect with the receiving platform. The lifting component drives the receiving platform to move closer to the conveyor line to lift the product to be tested away from the conveyor line.

3. The appearance inspection device as described in claim 2, characterized in that, The receiving platform is equipped with a receiving column, the receiving column is equipped with a positioning pin, the product to be tested is provided with a positioning hole, and the lifting component drives the receiving platform to lift so that the positioning pin is inserted into the positioning hole.

4. The appearance inspection device as described in claim 3, characterized in that, The receiving platform is equipped with a backlight source, which is located in the space formed by the receiving column and the receiving platform, and emits light toward the product to be tested.

5. The appearance inspection device as described in claim 1, characterized in that, The first blocking member includes a telescopic member and a blocking wheel. The blocking wheel is located at one end of the telescopic member. The telescopic member extends to allow the blocking wheel to contact the edge of the product under test, thereby preventing the product under test from moving.

6. The appearance inspection device as described in claim 1, characterized in that, The appearance inspection equipment also includes a scanning device. The product to be tested has an information code. The scanning device is located on the conveyor line and is used to scan the information code of the product to be tested.

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