Workpiece identification error-proofing system

Abstract

The utility model relates to a workpiece identification mistake proofing system. The workpiece identification error-proofing system comprises a workpiece, a two-dimensional code is pasted on the workpiece, and the two-dimensional code carries first machine type information of the workpiece; the two-dimensional code recognition assembly is arranged on one side of a roller path where the workpiece is located and used for recognizing first machine type information carried by the two-dimensional code; the visual collection assembly is arranged on one side of a roller path where the workpiece is located and used for collecting image information of the workpiece; and the control assembly is connected with the two-dimensional code recognition assembly and the visual acquisition assembly and used for receiving the first machine type information and the image information and controlling a robot to grab the workpiece under the condition that second machine type information corresponding to the image information is consistent with the received first machine type information. By adopting the workpiece identification error-proofing system, the types of the workpieces transported on the roller path can be subjected to dual identification, and the accuracy of workpiece identification is improved.

Description

Technical Field

[0001] The present application relates to the field of visual inspection technology, and in particular to a workpiece identification error prevention system. Background Art

[0002] In recent years, with the development of visual inspection technology, machine vision systems have been widely used in fields such as working condition monitoring, finished product inspection and quality control. During the transportation of workpieces, workpiece identification is required to prevent workpiece processing errors. On the workpiece transportation track, machine vision systems usually identify workpiece models by detecting the shape of the workpiece, but machine vision systems find it difficult to distinguish between workpiece models with similar appearances, and the recognition accuracy is not high. Utility Model Content

[0003] Based on this, it is necessary to provide a workpiece identification error prevention system that can improve the recognition accuracy in response to the above technical problems.

[0004] The present application provides a workpiece identification error prevention system, comprising:

[0005] A workpiece, wherein a QR code is attached to the workpiece, and the QR code carries first model information of the workpiece;

[0006] A QR code recognition component is arranged on one side of the raceway where the workpiece is located, and is used to recognize the first model information carried by the QR code;

[0007] A visual acquisition component, arranged at one side of the raceway where the workpiece is located, for acquiring image information of the workpiece;

[0008] The control component is connected to the two-dimensional code recognition component and the visual acquisition component respectively, and is used to receive the first model information and the image information, and control the robot to grasp the workpiece when the second model information corresponding to the image information is consistent with the received first model information.

[0009] In one embodiment, the two-dimensional code recognition component includes:

[0010] A first bracket, the first bracket being arranged on one side of the raceway where the workpiece is located;

[0011] A code reader is fixed on the first bracket and establishes a communication connection with the control component. The acquisition surface of the code reader is set toward the workpiece and is used to identify the model information carried by the two-dimensional code and send the model information to the control component.

[0012] In one embodiment, the barcode reader is a Keyence barcode reader.

[0013] In one embodiment, the visual acquisition component includes:

[0014] A second bracket, the second bracket being arranged on one side of the raceway where the workpiece is located;

[0015] A camera is fixed on the second bracket and establishes a communication connection with the control component; wherein the acquisition surface of the camera is arranged toward the workpiece, and is used to acquire image information of the workpiece and send the image information to the control component.

[0016] In one embodiment, the two-dimensional code recognition component and the visual acquisition component are respectively arranged on both sides of the raceway.

[0017] In one embodiment, the workpiece identification error prevention system further includes:

[0018] A blocking assembly is disposed at a gap between adjacent rollers of the raceway, and under the control of the control assembly, a blocking portion is extended to block the workpiece.

[0019] In one embodiment, the blocking assembly includes a first blocking assembly and a second blocking assembly;

[0020] The first blocking component and the second blocking component are located at different positions on the raceway, the projection of the two-dimensional code acquisition component toward the raceway does not completely overlap with the projection of the first blocking component, and the projection of the visual acquisition component toward the raceway does not completely overlap with the projection of the second blocking component.

[0021] In one embodiment, the workpiece identification error prevention system further includes:

[0022] A plurality of photoelectric detection components are respectively connected to the control component for communication; wherein the plurality of photoelectric detection components are respectively arranged on both sides of the raceway, and the collection surface of each photoelectric detection component is arranged toward the workpiece.

[0023] In one embodiment, the plurality of photoelectric detection components include:

[0024] A first photoelectric detection component is located at a QR code limit position of the rolling track;

[0025] A second photoelectric detection component is located at the two-dimensional code recognition station of the rolling track and is symmetrically arranged with the two-dimensional code recognition component;

[0026] A third photoelectric detection component is located at the visual limit position of the rolling track;

[0027] The fourth photoelectric detection component is located at the visual collection station of the roller conveyor and is arranged corresponding to the visual collection component; wherein the first photoelectric detection component and the third photoelectric detection component are located on the first side of the roller conveyor, and the second photoelectric detection component and the fourth photoelectric detection component are located on the second side of the roller conveyor.

[0028] In one of the embodiments, the workpiece identification and error prevention system further includes a display, which is connected to the control component and is used to display the first machine model information and the image information received by the control component.

[0029] The above-mentioned workpiece recognition error prevention system includes a workpiece, a two-dimensional code recognition component, a visual acquisition component and a control component, wherein a two-dimensional code is affixed to the workpiece, the two-dimensional code carries the first model information of the workpiece, the two-dimensional code recognition component is arranged on the side of the roller where the workpiece is located, the visual acquisition component is arranged on the side of the roller where the workpiece is located, and the control component is connected to the two-dimensional code recognition component and the visual acquisition component respectively. The two-dimensional code recognition component can be used to recognize the first model information carried by the two-dimensional code, the visual acquisition component can be used to collect the image information of the workpiece, the control component can be used to receive the first model information and the image information, and when the second model information corresponding to the image information is consistent with the received first model information, the robot is controlled to grab the workpiece. The workpiece recognition error prevention system of the present application can improve the accuracy of workpiece recognition by setting the two-dimensional code recognition component and the visual acquisition component to perform dual recognition of the model information of the workpiece, avoid errors in workpiece processing due to workpiece recognition errors, and cause waste of processing resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] FIG1 is a structural block diagram of a workpiece identification and error prevention system in one embodiment;

[0032] Figure 2 A schematic diagram of the structure of a PLC controller in one embodiment;

[0033] Figure 3 A schematic diagram of the structure of a two-dimensional code recognition component in one embodiment;

[0034] Figure 4 is a schematic diagram of the structure of a visual acquisition component in one embodiment;

[0035] Figure 5A top view of a workpiece identification error-proofing system in a specific embodiment;

[0036] Figure 6 It is a front view of a workpiece identification error-proofing system in a specific embodiment.

[0037] Description of reference numerals:

[0038] 100-workpiece, 200-QR code recognition component, 210-first bracket, 220-code reader, 300-visual acquisition component, 310-second bracket, 320-camera, 400-control component, 510-first photoelectric detection component, 520-second photoelectric detection component, 530-third photoelectric detection component, 540-fourth photoelectric detection component, 610-first blocking component, 620-second blocking component. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0041] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0042] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0043] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0044] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0045] In one embodiment, as shown in FIG1 , a workpiece identification error prevention system is provided, comprising a workpiece 100, a two-dimensional code recognition component 200, a visual acquisition component 300, and a control component 400. The two-dimensional code recognition component 200 is arranged on one side of the rolling track where the workpiece 100 is located. The visual acquisition component 300 is arranged on one side of the rolling track where the workpiece 100 is located. The two-dimensional code recognition component 200 and the visual acquisition component 300 can be arranged on the same side of the rolling track, or on both sides of the rolling track. The control component 400 is connected to the two-dimensional code recognition component 200 and the visual acquisition component 300, respectively.

[0046] The workpiece 100 is pasted with a two-dimensional code, which carries the first model information of the workpiece. The two-dimensional code can be pasted on the side of the workpiece.

[0047] The two-dimensional code recognition component 200 can be used to recognize the first model information carried by the two-dimensional code. The two-dimensional code recognition component 200 scans the two-dimensional code pasted on the workpiece to obtain the character information contained in the two-dimensional code. The characters with a preset number of digits in the character information can represent the first model information of the workpiece. Exemplarily, the character information is DH6A073230107A0064, where the third to fifth characters can represent the first model information, that is, 6A0 represents the first model information of the workpiece.

[0048] The visual acquisition component 300 can be used to acquire image information of the workpiece. The image information includes shape information such as the length and width of the workpiece. The visual acquisition component 300 can acquire the image information of the workpiece by taking pictures, photoelectric scanning, etc.

[0049] The control component 400 may be used to receive the first machine model information and the image information, and control the robot to grasp the workpiece when the second machine model information corresponding to the image information is consistent with the received first machine model information. Figure 2 The PLC controller shown.

[0050] It can be understood that the workpiece 100 to be processed is transmitted on the roller track and will pass through the two-dimensional code recognition component 200 and the visual acquisition component 300 in sequence. The two-dimensional code recognition component 200 scans the two-dimensional code carried by the workpiece 100, obtains the first model information of the workpiece, and sends the first model information to the control component 400. Further, the visual acquisition component 300 collects image information of the workpiece and sends the image information to the control component 400. The control component 400 stores a visual matching template of the workpiece to be processed. The visual matching template represents the image of the standard workpiece. The control component can compare the image information obtained by the visual acquisition component with the visual matching template to determine the second model information of the workpiece. When the first model information and the second model information are consistent, the control component 400 determines that the workpiece is the correct workpiece to be processed, and controls the robot to grab the workpiece 100.

[0051] In an embodiment of the present application, a workpiece identification error prevention system includes a workpiece 100, a two-dimensional code recognition component 200, a visual acquisition component 300, and a control component 400, wherein a two-dimensional code is attached to the workpiece 100, and the two-dimensional code carries the first model information of the workpiece, the two-dimensional code recognition component 200 is arranged on one side of the rolling track where the workpiece is located, and the visual acquisition component 300 is arranged on one side of the rolling track where the workpiece is located, and the control component 400 is connected to the two-dimensional code recognition component 200 and the visual acquisition component 300 respectively. The two-dimensional code recognition component 200 can be used to identify the first model information carried by the two-dimensional code, the visual acquisition component 300 can be used to collect the image information of the workpiece, and the control component 400 can be used to receive the first model information and the image information, and when the second model information corresponding to the image information is consistent with the received first model information, the robot is controlled to grab the workpiece. The workpiece identification error prevention system of the present application can improve the accuracy of workpiece identification by setting the two-dimensional code recognition component 200 and the visual acquisition component 300 to perform dual identification on the model information of the workpiece, so as to avoid errors in workpiece processing due to workpiece identification errors, resulting in waste of resources.

[0052] In one embodiment, Figure 3 As shown, the two-dimensional code recognition component 200 includes a first bracket 210 and a code reader 220. The first bracket 210 is arranged on one side of the raceway where the workpiece 100 is located. The code reader 220 is fixed on the first bracket 210 and establishes a communication connection with the control component. The acquisition surface of the code reader 220 is arranged toward the workpiece 100, and can be used to identify the first model information carried by the two-dimensional code, and send the first model information to the control component.

[0053] The height of the first bracket 210 can be adjusted according to the height of the two-dimensional code pasted on the workpiece, so that the code reader 220 can accurately scan the two-dimensional code pasted on the workpiece.

[0054] In one embodiment, the barcode reader may be a KEYENCE barcode reader.

[0055] In one embodiment, Figure 4 As shown, the visual acquisition component 300 includes a second bracket 310 and a camera 320. The second bracket 310 is arranged on the side of the raceway where the workpiece 100 is located. The camera 320 is fixed on the second bracket 320 and establishes a communication connection with the control component. The acquisition surface of the camera 320 is set toward the workpiece 100, and is used to collect image information of the workpiece and send the image information to the control component. The camera 320 is fixed on the second bracket 310, and the lens of the camera can be parallel to the upper surface of the workpiece. It can be understood that the image taken by the camera is a top view of the workpiece.

[0056] In one embodiment, the camera is a 2D camera. The image captured by the 2D camera is a top view including surface features on the workpiece.

[0057] In one embodiment, the workpiece identification and error prevention system further comprises a plurality of photoelectric detection components which are respectively arranged on both sides of the raceway, establish communication connection with the control component, and the collection surface of each photoelectric detection component is arranged toward the workpiece.

[0058] In one embodiment, the number of the photoelectric detection components is four, that is, the workpiece identification system includes a first photoelectric detection component, a second photoelectric detection component, a third photoelectric detection component and a fourth photoelectric detection component.

[0059] The roller track is provided with a QR code limit station, a QR code recognition station, a visual limit station and a visual acquisition station. Among them, the QR code limit station indicates that the workpiece is about to enter the recognizable range of the QR code recognition component. The QR code recognition station indicates the position of the QR code recognition component. The visual limit station indicates that the workpiece is about to enter the recognizable range of the visual acquisition component. The visual acquisition station indicates the position of the visual acquisition component.

[0060] The first photoelectric detection component is located at the two-dimensional code limit station of the rolling track, the second photoelectric detection component is located at the two-dimensional code recognition station of the rolling track, and is symmetrically arranged with the two-dimensional code recognition component, the third photoelectric detection component is located at the visual limit station of the rolling track, and the fourth photoelectric detection component is located at the visual collection station of the rolling track, and is arranged correspondingly with the visual collection component. The first photoelectric detection component and the third photoelectric detection component are located at the first side of the rolling track, and the second photoelectric detection component and the fourth photoelectric detection component are located at the second side of the rolling track.

[0061] In the embodiment of the present application, by arranging multiple photoelectric detection components on both sides of the raceway, the QR code recognition component can be started in time when the workpiece reaches the QR code recognition station, and the visual acquisition component can be started in time when the workpiece reaches the visual acquisition station.

[0062] In one embodiment, the photodetection assembly may include a photodetection switch.

[0063] In one embodiment, the workpiece identification error prevention system further includes a blocking component. The blocking component is arranged at the gap between adjacent rollers of the raceway, so that under the control of the control component, a blocking portion is extended to block the workpiece. The blocking component includes a blocking portion and a solenoid valve. When the workpiece is conveyed to a set position, the control component controls the solenoid valve to control the blocking portion to rise, thereby blocking the workpiece from continuing to move.

[0064] Further, the blocking assembly includes a first blocking assembly and a second blocking assembly.

[0065] The first blocking component and the second blocking component are located at different positions on the raceway, the projection of the two-dimensional code acquisition component toward the raceway does not completely overlap with the projection of the first blocking component, and the projection of the visual acquisition component toward the raceway does not completely overlap with the projection of the second blocking component.

[0066] When the workpiece passes through the QR code limit station, the blocking part of the first blocking component extends to block the workpiece from passing the QR code recognition station, so that the QR code recognition component can scan the QR code pasted on the workpiece, thereby identifying the first model information of the workpiece. In addition, when the first model information and the preset model information are inconsistent, the first blocking component blocks the workpiece from continuing to move. The preset model information refers to the model information of the workpiece to be processed set in the control component in advance by the staff before the workpiece is processed. The QR code recognition component sends the identified first model information to the control component, and the control component compares the first model information with the preset model information. When the first model information and the preset model information are inconsistent, the control component outputs a control instruction to the first blocking component to keep the first blocking component in the current state and block the workpiece from moving on the raceway. When the first model information and the preset model information are consistent, the control component outputs a control instruction to the first blocking component to lower the blocking part of the first blocking component and the workpiece is conveyed forward.

[0067] By setting the first blocking component, when the first model information and the preset model information are inconsistent, the workpiece is blocked from continuing to move on the rolling track, so that the staff can check the error in time and avoid incorrect processing due to incorrect pasting of the QR code on the workpiece, incorrect setting of the preset model information, etc.

[0068] When the workpiece passes through the visual limit station, the blocking part of the second blocking component extends to block the workpiece from passing the visual acquisition station, so that the visual acquisition component can collect image information of the workpiece. In addition, when the first model information and the second model information are consistent, the second blocking component blocks the workpiece from moving on the raceway, so that the robot can grab the workpiece. When the first model information and the second model information are consistent, the blocking rod of the second blocking component is lowered, the workpiece is conveyed forward, and the robot does not grab the workpiece.

[0069] In an embodiment of the present application, a blocking component is provided at the QR code recognition station and the visual acquisition station to prevent the workpiece from continuing to move, so that the QR code recognition component can accurately scan the QR code on the workpiece, and the visual acquisition component can accurately acquire the image information of the workpiece.

[0070] In one embodiment, the workpiece identification and error prevention system further includes a display, which is connected to the control component and is used to display the first machine model information and image information received by the control component.

[0071] The display can show the first model information, preset model information, image information, visual matching template, etc., to facilitate staff review.

[0072] In a more specific embodiment, Figure 5 and Figure 6 As shown, a workpiece identification error-proofing system is provided. Figure 5 Identify the top view of the error proofing system for this workpiece, Figure 6 Identify the front view of the error proofing system for this workpiece.

[0073] The workpiece identification error prevention system includes a workpiece 100, a two-dimensional code recognition component 200, a visual recognition component 300, a first photoelectric detection component 510, a second photoelectric detection component 520, a third photoelectric detection component 530, a fourth photoelectric detection component 540, a first blocking component 610, a second blocking component 620, a control component and a display. Among them, a two-dimensional code is pasted on the side of the workpiece 100, and the two-dimensional code carries the first model information of the workpiece. The two-dimensional code recognition component 200 is arranged on one side of the roller, and the collection surface is arranged facing the workpiece 100. The visual collection component 300 is arranged on the other side of the roller, and the collection surface is arranged facing the workpiece 100. The first photoelectric detection component 510 and the third photoelectric detection component 530 are arranged on the same side of the two-dimensional code recognition component 200, and the second photoelectric detection component 520 and the fourth photoelectric detection component 540 are arranged on the same side of the visual collection component 300. The position of the first blocking component 610 slightly exceeds the projection position of the two-dimensional code recognition component 200 on the roller track, and the position of the second blocking component 620 slightly exceeds the projection position of the visual recognition component 300 on the roller track. The control component establishes communication connections with the two-dimensional code recognition component 200, the visual recognition component 300, the first photoelectric detection component 510, the second photoelectric detection component 520, the third photoelectric detection component 530, the fourth photoelectric detection component 540, the first blocking component 610, the second blocking component 620, and the display.

[0074] The workflow of the workpiece identification and error-proofing system is as follows:

[0075] When the workpiece 100 passes through the first photoelectric detection component 510 on the roller track, the first photoelectric detection component 510 outputs a switch signal to the control component, so that the control component controls the first blocking component 610 to extend. When the workpiece 100 passes through the second photoelectric detection component 520, the second photoelectric detection component 520 outputs a switch signal to the control component, so that the control component controls the two-dimensional code recognition component 200 to start. The two-dimensional code recognition component 200 obtains the first model information of the workpiece 100 and sends the first model information to the control component. Further, the control component compares the first model information with the preset model information. If the first model information and the preset model information are inconsistent, the first blocking component 610 is controlled to remain extended, the workpiece is blocked, and at the same time, the roller track stops running. The control component controls the display to display the first model information and the preset model information, and controls the display to display the prompt information of the workpiece model error.

[0076] If the first model information is consistent with the preset model information, the control component controls the first blocking component 610 to be lowered, and the workpiece 100 is conveyed forward. When the workpiece 100 passes through the third photoelectric detection component 530, the third photoelectric detection component 530 outputs a switch signal to the control component, so that the control component controls the second blocking component 620 to extend. When the workpiece 100 passes through the fourth photoelectric detection component 540, the fourth photoelectric detection component 540 outputs a switch signal to the control component, so that the control component controls the visual acquisition component 300 to start. The visual acquisition component 300 collects image information of the workpiece and sends the image information to the control component. Further, the control component compares the image information with the visual matching template, determines the second model information of the workpiece according to the visual matching template, and compares the second model information with the first model information. If the first model information is consistent with the second model, the control component controls the robot to grab the workpiece. The robot obtains the coordinate information of the workpiece 100 according to the image information collected by the visual acquisition component 300, and grabs the workpiece 100 to the processing equipment according to the coordinate information. If the first model information and the second model information are inconsistent, the control component controls the second blocking component 620 to descend, the workpiece is conveyed forward, and the robot does not grab the workpiece. At the same time, the control component controls the display to display a prompt message indicating that the workpiece model is wrong.

[0077] In the embodiment of the present application, the workpiece identification and error prevention system performs dual identification of the workpiece model by setting a QR code recognition component 200 and a visual recognition component 300, which can improve the accuracy of workpiece identification and avoid workpiece processing errors caused by staff errors such as incorrect QR code pasting, incorrect preset model settings, incorrect visual matching template settings, and errors in workpiece transportation.

[0078] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A workpiece identification error-proofing system, characterized in that: The workpiece identification error-proofing system comprises: A workpiece, wherein a QR code is attached to the workpiece, and the QR code carries first model information of the workpiece; A QR code recognition component is arranged on one side of the raceway where the workpiece is located, and is used to recognize the first model information carried by the QR code; A visual acquisition component, arranged at one side of the raceway where the workpiece is located, for acquiring image information of the workpiece; The control component is connected to the two-dimensional code recognition component and the visual acquisition component respectively, and is used to receive the first model information and the image information, and control the robot to grasp the workpiece when the second model information corresponding to the image information is consistent with the received first model information.

2. The workpiece identification error-proofing system according to claim 1, characterized in that: The two-dimensional code recognition component includes: A first bracket, the first bracket being arranged on one side of the raceway where the workpiece is located; A code reader is fixed on the first bracket and establishes a communication connection with the control component. The acquisition surface of the code reader is set toward the workpiece, and is used to identify the first model information carried by the two-dimensional code and send the first model information to the control component.

3. The workpiece identification error prevention system according to claim 2, characterized in that: The code reader is a Keyence code reader.

4. The workpiece identification error-proofing system according to claim 1, characterized in that: The visual acquisition component includes: A second bracket, the second bracket being arranged on one side of the raceway where the workpiece is located; A camera is fixed on the second bracket and establishes a communication connection with the control component; wherein the acquisition surface of the camera is arranged toward the workpiece, and is used to acquire image information of the workpiece and send the image information to the control component.

5. The workpiece identification error prevention system according to claim 1, characterized in that: The two-dimensional code recognition component and the visual acquisition component are respectively arranged on both sides of the rolling track.

6. The workpiece identification error-proofing system according to claim 1, characterized in that: The workpiece identification error prevention system also includes: A blocking component is disposed at a gap between adjacent rollers of the raceway, and under the control of the control component, a blocking portion is extended to block the workpiece.

7. The workpiece identification error prevention system according to claim 6, characterized in that: The blocking component includes a first blocking component and a second blocking component; wherein, the first blocking component and the second blocking component are at different positions on the raceway, the projection of the two-dimensional code acquisition component toward the raceway does not completely overlap with the projection of the first blocking component, and the projection of the visual acquisition component toward the raceway does not completely overlap with the projection of the second blocking component.

8. The workpiece identification error-proofing system according to claim 1, characterized in that: The workpiece identification error prevention system also includes: A plurality of photoelectric detection components are respectively connected to the control component for communication; wherein the plurality of photoelectric detection components are respectively arranged on both sides of the raceway, and the collection surface of each photoelectric detection component is arranged toward the workpiece.

9. The workpiece identification error-proofing system according to claim 8, characterized in that: The plurality of photoelectric detection components include: A first photoelectric detection component is located at a QR code limit position of the rolling track; A second photoelectric detection component is located at the two-dimensional code recognition station of the rolling track and is symmetrically arranged with the two-dimensional code recognition component; A third photoelectric detection component is located at the visual limit position of the rolling track; The fourth photoelectric detection component is located at the visual collection station of the roller conveyor and is arranged corresponding to the visual collection component; wherein the first photoelectric detection component and the third photoelectric detection component are located on the first side of the roller conveyor, and the second photoelectric detection component and the fourth photoelectric detection component are located on the second side of the roller conveyor.

10. The workpiece identification error-proofing system according to claim 1, characterized in that: The workpiece identification and error prevention system further includes a display, which is connected to the control component and is used to display the first machine model information and the image information received by the control component.

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