Calibration platform based on machine vision application

Abstract

The invention provides a calibration platform based on machine vision application. The calibration platform comprises a base, a first calibration platform, a first vision calibration mechanism, a discrete mechanism, a reversing mechanism and a second calibration platform. The reversing mechanism is arranged between the first calibration platform and the second calibration platform, so that normal workpieces can be directly and stably conveyed to the right tail end of the second calibration platform to be directly sent out by the reversing mechanism, and meanwhile, when the visual calibration mechanism on the first calibration platform detects abnormal workpieces, the normal workpieces can be directly conveyed out by the reversing mechanism; and a workpiece cluster of abnormal workpieces can be integrally guided into the discrete mechanism for further detection and determination, and the abnormal workpieces are automatically conveyed to the second calibration platform. The dispersing mechanism can disperse dense workpieces after receiving an abnormal workpiece cluster, detection is carried out through the second visual calibration mechanism of the second calibration platform, whether the workpieces are abnormal or not is further determined, and the problems that traditional detection equipment cannot accurately judge whether the workpieces have flaws or not, and misjudgment or missed judgment is caused are solved.

Description

Technical Field

[0001] The present application relates to the technical field of vision application calibration, and in particular to a calibration platform based on machine vision applications. Background Art

[0002] In the manufacturing industry, machine vision calibration can be used for product assembly, parts inspection, quality control, etc. After the workpieces are produced, since there may be tens of thousands of workpieces in a batch, if manual inspection is used, the efficiency cannot meet the production needs. In related technologies, the inspection platform will be used for conveying inspection, but the workpieces will be densely laid on the conveyor belt and folded with each other. At this time, the inspection equipment cannot accurately determine whether the workpiece has defects, resulting in misjudgment or missed judgment. Summary of the invention

[0003] In view of this, the purpose of this application is to propose a calibration platform based on machine vision application to solve the problem in the prior art that workpieces are folded against each other, resulting in an inability to accurately determine whether the workpieces have defects.

[0004] Based on the above objectives, the present application provides a calibration platform based on machine vision applications, including:

[0005] Pedestal;

[0006] A first calibration platform is arranged on the base, a first conveying assembly is arranged on the first calibration platform, and a first visual calibration mechanism, a discrete mechanism and a reversing mechanism for transferring the workpiece on the first conveying assembly to the discrete mechanism are arranged on the conveying end of the first conveying assembly of the first calibration platform;

[0007] A second calibration platform is arranged on the base, the height of the second calibration platform is smaller than that of the first calibration platform, the second calibration platform is partially located below the discrete mechanism, and a second conveying assembly and a second visual calibration mechanism are provided on the second calibration platform, so that the discrete mechanism can discretize the workpiece on the first conveying assembly to the second conveying assembly and calibrate it through the second visual calibration mechanism.

[0008] Optionally, the first conveying assembly and the second conveying assembly have the same structure, and each of the conveying assemblies comprises a plurality of first conveying rollers, and the plurality of first conveying rollers are rotatably arranged in an array on a corresponding calibration platform, and the plurality of first conveying rollers are outer shells provided with a first conveyor belt, and a first motor is provided at the end of each calibration platform, and the first motor is connected to the first conveying roller at the end.

[0009] Optionally, the discrete mechanism includes a housing, a second motor and a third conveying assembly disposed in the housing, the second motor is fixed to the housing, the second motor passes through the housing and is connected to the third conveying assembly, the housing is fixed below the first calibration platform, and one end of the third conveying assembly extends out of the first calibration platform;

[0010] The third conveying assembly includes a guide roller and a plurality of second conveying rollers, the plurality of second conveying rollers are sleeved with a second conveying belt, and the guide roller is arranged between the plurality of second conveying rollers and pressed on the second conveying belt to form a step shape.

[0011] Optionally, the reversing mechanism includes two mounting plates and a reversing plate rotatably arranged between the two mounting plates, the ends of the two mounting plates are fixed to the ends of the conveying end of the first calibration platform, one of the mounting plates is provided with a driving unit, and the driving unit is connected to the reversing plate.

[0012] Optionally, the driving unit includes two meshing gears, wherein one gear is connected to the reversing plate via a connecting shaft, and the other gear is connected to the third motor via a connecting shaft.

[0013] Optionally, the first visual calibration mechanism and the second visual calibration mechanism have the same structure, and each of the visual calibration mechanisms includes a truss and a calibration camera device disposed on the truss, and the truss is fixed on a corresponding calibration platform.

[0014] Optionally, a material receiving plate is further provided on the first calibration platform, one end of the material receiving plate is located obliquely below the reversing mechanism, and the other end of the material receiving plate is located above the second calibration platform.

[0015] Optionally, the second calibration platform is further provided with a workbench for controlling the lifting and rotation of the sorting robot, and the workbench is also provided with a sliding frame for controlling the longitudinal movement of the sorting robot.

[0016] Optionally, the workbench includes two lifting cylinders, a fixed plate, and a fourth motor. The two lifting cylinders are fixed on the second calibration platform, the fixed plate is fixed on the lever ends of the two lifting cylinders, the fourth motor is fixed on the fixed plate, and the sliding frame is fixed on the rotating shaft end of the fourth motor.

[0017] Optionally, the sliding frame includes a sliding rail, one end of which is connected to the rotating shaft of the fourth motor, a rectangular sliding hole is opened on the sliding rail, a screw is rotatably arranged in the sliding hole, one end of the screw is connected to the fifth motor, a sliding block is provided on the screw, and a flange for installing the sorting robot is provided on the sliding block.

[0018] As can be seen from the above, the present application provides a calibration platform based on machine vision application, including: a base; a first calibration platform, arranged on the base, a first conveying assembly is arranged on the first calibration platform, and the first calibration platform is provided with a first visual calibration mechanism, a discrete mechanism and a reversing mechanism for transferring the workpiece on the first conveying assembly to the discrete mechanism at the conveying end of the first conveying assembly; a second calibration platform, arranged on the base, the height of the second calibration platform is less than the height of the first calibration platform, the second calibration platform is partially located below the discrete mechanism, and the second calibration platform is provided with a second conveying assembly and a second visual calibration mechanism, so that the discrete mechanism discretizes the workpiece on the first conveying assembly to the second conveying assembly and calibrates it through the second visual calibration mechanism. By setting a reversing mechanism between the first calibration platform and the second calibration platform, the reversing mechanism can not only directly and smoothly convey the normal workpiece to the right end of the second calibration platform and directly send it out, but also the reversing mechanism can, when the visual calibration mechanism on the first calibration platform detects an abnormal workpiece, the workpiece cluster with abnormal workpieces in this section can be imported as a whole into the discrete mechanism for further detection and determination, and the abnormal workpiece is automatically sent to the second calibration platform, which has a compact structure and is more convenient and efficient to use. After receiving an abnormal cluster of workpieces, the discrete mechanism can disperse the dense workpieces and detect them through the second visual calibration mechanism of the second calibration platform to further confirm whether the workpieces are abnormal. This solves the problem that traditional inspection equipment cannot accurately determine whether the workpieces have defects, resulting in misjudgment or missed judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the structure of a calibration platform based on machine vision application according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of a calibration platform based on machine vision application from another perspective according to an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the side structure of a calibration platform based on machine vision application according to an embodiment of the present application;

[0023] Figure 4 A schematic diagram of a partial side structure of a calibration platform based on machine vision application according to an embodiment of the present application;

[0024] Figure 5 For the embodiments of this application Figure 4 A magnified schematic diagram of the middle part;

[0025] Figure 6 For the embodiments of this application Figure 3 Enlarged schematic diagram of part B in the middle.

[0026] In the attached figure:

[0027] 1. Base; 2. First calibration platform; 3. Second calibration platform; 41. First conveying assembly; 42. Second conveying assembly; 401. First conveying roller; 402. First conveyor belt; 51. First visual calibration mechanism; 52. Second visual calibration mechanism; 501. Truss; 502. Calibration camera device; 6. Discrete mechanism; 601. Housing; 602. Third conveying assembly; 6021. Second conveying roller; 6022. Guide roller; 6023. Second conveyor belt; 7. Reversing mechanism; 701. Mounting plate; 702. Reversing plate; 703. Drive unit; 8. Receiving plate; 9. Workbench; 10. Sliding rack. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Based on the background technology, in automobile manufacturing, machine vision calibration can be used to check the precise assembly of parts and detect defects. After the workpiece is produced, since the number of workpieces in a batch may be tens of thousands, if manual inspection is used, the efficiency cannot meet the production needs. Therefore, machine vision inspection is generally carried out in conjunction with robots.

[0031] When there are a large number of workpieces to be inspected in the same batch, when all the workpieces are poured onto the inspection platform for transportation, the workpieces will be densely laid out on the conveyor belt and folded over each other. At this time, the inspection equipment will not be able to accurately determine whether the workpieces have defects, resulting in misjudgment or missed judgment. If the workpieces are manually laid out on the conveyor belt in an orderly manner with intervals, a large amount of manpower will be consumed and the inspection and calibration efficiency will be greatly reduced.

[0032] In order to solve the above technical problems, Figure 1 As shown, the present application provides a calibration platform based on machine vision application, comprising:

[0033] Base 1;

[0034] A first calibration platform 2 is arranged on the base 1, a first conveying assembly 41 is provided on the first calibration platform 2, and a first visual calibration mechanism 51, a discrete mechanism 6 and a reversing mechanism 7 for transferring the workpiece on the first conveying assembly 41 to the discrete mechanism 6 are provided at the conveying end of the first conveying assembly 41 of the first calibration platform 2;

[0035] The second calibration platform 3 is arranged on the base 1. The height of the second calibration platform 3 is less than that of the first calibration platform 2. The second calibration platform 3 is partially located below the discrete mechanism 6. The second calibration platform 3 is provided with a second conveying component 42 and a second visual calibration mechanism 52, so that the discrete mechanism 6 can discretize the workpiece on the first conveying component 41 to the second conveying component 42 and calibrate it through the second visual calibration mechanism 52.

[0036] Specifically, by setting a reversing mechanism 7 between the first calibration platform 2 and the second calibration platform 3, the reversing mechanism 7 can not only directly and smoothly transport the normal workpiece to the right end of the second calibration platform 3 and directly send it out, but also when the visual calibration mechanism on the first calibration platform 2 detects an abnormal workpiece, the reversing mechanism 7 can import the workpiece cluster with abnormal workpieces in this section as a whole to the discrete mechanism 6 for further detection and determination, and automatically send the abnormal workpiece to the second calibration platform 3, which has a compact structure and is more convenient and efficient to use. After receiving the abnormal workpiece cluster, the discrete mechanism 6 can disperse the dense workpieces and detect them through the second visual calibration mechanism 52 of the second calibration platform 3 to further confirm whether the workpiece is abnormal, which solves the problem that traditional detection equipment cannot accurately determine whether the workpiece has defects, resulting in misjudgment or missed judgment.

[0037] In some embodiments, Figure 1 , Figure 2 and Figure 3As shown, the first conveying assembly 41 and the second conveying assembly 42 have the same structure, and each of the conveying assemblies comprises a plurality of first conveying rollers 401, and the plurality of first conveying rollers 401 are rotatably arranged in an array on a corresponding calibration platform, and the plurality of first conveying rollers 401 are provided with a first conveyor belt 402 on their outer sleeves, and a first motor is provided at the end of each of the calibration platforms, and the first motor is connected to the first conveying roller 401 at the end.

[0038] Specifically, a plurality of first conveyor rollers 401 are arranged in an array on the first calibration platform 2 and the second calibration platform 3. The first conveyor belts 402 are provided outside the two groups of first conveyor rollers 401 arranged on the first calibration platform 2 and the second calibration platform 3, respectively. The first conveyor belts 402 are supported by the first conveyor rollers 401 at both ends of each group as the main transmission force. One of the first conveyor rollers 401 at both ends is connected to a first motor, which can drive the first conveyor belts 402 to rotate by driving the conveyor rollers at the ends.

[0039] In some embodiments, Figure 3 and Figure 6 As shown, the discrete mechanism 6 includes a housing 601, a second motor and a third conveying assembly 602 disposed in the housing 601, the second motor is fixed to the housing 601, the second motor passes through the housing 601 and is connected to the third conveying assembly 602, the housing 601 is fixed below the first calibration platform 2, and one end of the third conveying assembly 602 extends out of the first calibration platform 2;

[0040] The third conveying assembly 602 includes a guide roller 6022 and a plurality of second conveying rollers 6021 , a second conveying belt 6023 is sleeved on the plurality of second conveying rollers 6021 , and the guide roller 6022 is disposed between the plurality of second conveying rollers 6021 and pressed on the second conveying belt 6023 to form a step shape.

[0041] Specifically, the third conveying assembly 602 is arranged inside the housing 601, so that the third conveying assembly 602 can be protected by the housing 601. The third conveying assembly 602 includes a guide roller 6022 and a plurality of second conveying rollers 6021, the plurality of second conveying rollers 6021 are arranged in a stepped manner, and the guide roller 6022 presses the second conveying belt 6023 on the second conveying roller 6021, so that the third conveying assembly 602 can be stably conveyed, wherein one of the two outermost conveying rollers in the plurality of second conveying rollers 6021 is connected to the second motor, so that the second conveying belt 6023 can be driven to rotate.

[0042] In some embodiments, Figure 4 and Figure 5As shown, the reversing mechanism 7 includes two mounting plates 701 and a reversing plate 702 rotatably arranged between the two mounting plates 701, the ends of the two mounting plates 701 are fixed to the ends of the conveying end of the first calibration platform 2, and one of the mounting plates 701 is provided with a driving unit 703, and the driving unit 703 is connected to the reversing plate 702;

[0043] The driving unit 703 includes two meshing gears, one of which is connected to the reversing plate 702 via a connecting shaft, and the other gear is connected to the third motor via a connecting shaft.

[0044] Specifically, two mounting plates 701 are provided at the end of the first calibration platform 2, a reversing plate 702 is rotatably arranged between the two mounting plates 701, and a driving unit 703 drives the mounting plate 701 to rotate, and the driving unit 703 includes two meshing gears, one of which is connected to the reversing plate 702 through a connecting shaft, and the other gear is connected to the third motor, so that the third motor rotates to drive the two gears to mesh and rotate, thereby driving the reversing plate 702 to rotate, and when one end of the reversing plate 702 faces the first conveying assembly 41, the reversing plate 702 will directly guide the workpiece to the second calibration platform 3. When one end of the reversing plate 702 is away from the first conveying assembly 41, the reversing plate 702 will guide the workpiece to the discrete mechanism 6.

[0045] In some embodiments, Figure 5 As shown, the first visual calibration mechanism 51 and the second visual calibration mechanism 52 have the same structure, and each of the visual calibration mechanisms includes a truss 501 and a calibration camera 502 disposed on the truss 501 , and the truss 501 is fixed on a corresponding calibration platform.

[0046] Specifically, the first visual calibration mechanism 51 and the second visual calibration structure are consistent in structure, that is, the camera is set on the corresponding calibration platform through the truss 501. For example, the truss 501 is provided with multiple calibration cameras at different angles, which can scan and record the workpiece state parameters more comprehensively, and provide more detailed data to determine whether the workpiece is abnormal, thereby improving the accuracy of visual inspection of the workpiece.

[0047] In some embodiments, Figure 4 and Figure 5 As shown, a receiving plate 8 is further provided on the first calibration platform 2 , one end of the receiving plate 8 is located obliquely below the reversing mechanism 7 , and the other end of the receiving plate 8 is located above the second calibration platform 3 .

[0048] Specifically, symmetrical mounting rods are provided at the end of the first platform, and the mounting rods can be provided on the corresponding mounting plates 701, and the receiving plate 8 is provided on the mounting rods, so that the receiving plate 8 can be stably installed. The mounting rods are used to install the receiving plate 8, which is not shown in the figure, and the structure thereof is not specifically limited, as long as the receiving plate 8 can be fixed.

[0049] In some embodiments, Figure 1 As shown, the second calibration platform 3 is further provided with a workbench 9 for controlling the lifting and rotation of the sorting robot, and the workbench 9 is also provided with a sliding frame 10 for controlling the longitudinal movement of the sorting robot;

[0050] The workbench 9 includes two lifting cylinders, a fixed plate, and a fourth motor. The two lifting cylinders are fixed on the second calibration platform 3. The fixed plate is fixed to the lever ends of the two lifting cylinders. The fourth motor is fixed to the fixed plate. The sliding frame 10 is fixed to the rotating shaft end of the fourth motor.

[0051] The sliding frame 10 includes a slide rail, one end of which is connected to the rotating shaft of the fourth motor, a rectangular slide hole is opened on the slide rail, a screw is rotatably arranged in the slide hole, one end of the screw is connected to the fifth motor, a slider is provided on the screw, and a flange for mounting a sorting robot is provided on the slider.

[0052] Specifically, the workbench 9 can control the lifting of the fourth motor through the lifting cylinder, thereby controlling the sliding frame 10 set at the end of the rotating shaft of the fourth motor, thereby controlling the lifting of the sorting robot, and the sliding frame 10 is provided with a fifth motor, and the fifth motor is used to control the rotation of the sorting robot.

[0053] The specific embodiments in this application are as follows:

[0054] A first calibration platform 2 and a second calibration platform 3 are welded above the base 1 through a bracket, and a first conveying assembly 41 is installed on the first calibration platform 2 and the second calibration platform 3. The main structure of the first conveying assembly 41 includes a plurality of conveying rollers 1 rotatably installed on the first calibration platform 2 or the second calibration platform 3, a first conveyor belt 402 is sleeved between the plurality of conveying rollers 1, and one end of the conveying roller 1 located at the end is connected to a first motor, and a visual calibration mechanism is installed on the first calibration platform 2 and the second calibration platform 3. A discrete mechanism 6 for dispersing a cluster of workpieces detected to be abnormal is installed below the first calibration platform 2, and a reversing mechanism 7 for guiding a cluster of workpieces with abnormalities on the conveyor belt to the discrete mechanism 6 is installed at the end of the first calibration platform 2, and a receiving plate 8 for smoothly delivering normal workpieces to the second calibration platform 3 is also installed on one side of the reversing mechanism 7.

[0055] The workpieces are densely laid on the first conveying assembly 41 on the surface of the first calibration platform 2 for conveying, and then fall into the first conveying assembly 41 on the surface of the second calibration platform 3 through the reversing mechanism 7 and the receiving plate 8 for conveying, and finally sent out. During this process, when the visual calibration mechanism on the first calibration platform 2 detects that there is an abnormality in a certain section of the workpiece cluster below, the reversing mechanism 7 works at this time, and the workpiece cluster originally introduced into the receiving plate 8 is turned and introduced into the discrete mechanism 6 for discretization, so that this part of the workpiece cluster is more dispersed, and then falls back into the first conveying assembly 41 on the second calibration platform 3 below for conveying. At the same time, the visual calibration mechanism on the second calibration platform 3 will perform visual inspection again to determine whether there are really abnormal defects in this part of the workpiece cluster, and ensure the accuracy of visual calibration without the need for artificial dispersion.

[0056] In order to improve the accuracy of the calibration camera in judging whether the workpiece is abnormal, the visual calibration mechanism used in this embodiment mainly includes a truss 501 welded on the first calibration platform 2 or the second calibration platform 3. A plurality of calibration cameras at different positions and angles are installed on the upper part of the truss 501. The workpiece data is acquired in an all-round manner through the plurality of calibration cameras, thereby providing more comprehensive data support for judging abnormal defects of the workpiece, thereby improving the accuracy of the judgment.

[0057] In order to solve the problem that when a large number of workpieces are poured onto the first conveying assembly 41 for conveying, the densely laid workpieces are inconvenient for visual calibration and detection of the workpieces, the discrete mechanism 6 adopted in this scheme mainly includes a shell 601 fixedly arranged below the end of the calibration platform, and a third conveying assembly 602 is installed inside the shell 601. The third conveying assembly 602 includes a plurality of conveying rollers and a guide roller 6022 rotatably installed inside the shell 601. The surfaces of the plurality of conveying rollers are provided with a second conveying belt 6023 conveying from right to left. The plurality of guide rollers 6022 roll and abut against the inner and outer end edges of the second conveying belt 6023. The left end of the second conveying belt 6023 is formed into a stepped shape by the conveying roller and the guide roller 6022. A second motor is installed on the surface of the shell 601, and the output shaft of the second motor is connected to one end of the conveying roller.

[0058] When the reversing mechanism 7 delivers the abnormal workpiece cluster to the third conveying component 602, dispersion will occur. At the same time, the conveyor belt at the end of the third conveying component 602 is stepped, which will cause the dispersed workpiece cluster to be further dispersed and fall onto the first conveying component 41 on the second calibration platform 3 below, and be further inspected by the visual calibration mechanism below. Since the workpieces are dispersed at this time, the detection effect of the visual calibration mechanism is greatly improved, thereby ensuring the detection accuracy.

[0059] In order to facilitate the dispersed secondary inspection of some abnormal workpiece clusters, the reversing mechanism 7 adopted in this scheme mainly has two mounting plates 701 welded at the end of the first calibration platform 2, and a reversing plate 702 is rotatably installed between the two mounting plates 701. A driving unit 703 is installed on one side of the reversing plate 702. The structure of the driving unit 703 mainly includes two connecting shafts rotatably installed on a mounting plate 701, and two gears with different diameters and rotating with each other are respectively installed on the two connecting shafts. One connecting shaft is connected to the reversing plate 702, and the other connecting shaft is connected to the third motor. The gear is driven to rotate by the third motor, so that the reversing plate 702 can rotate. The reversing plate 702 tilts to the right for the normal workpiece conveying direction, and tilts to the left for the abnormal workpiece cluster to be sent to the discrete mechanism 6 for dispersion and secondary inspection.

[0060] Embodiment 2

[0061] In order to facilitate the grasping robot to grasp the workpiece confirmed to be abnormal, on the basis of Example 1, as shown in the figure, a workbench 9 for controlling the lifting and rotation of the sorting robot is also installed on the upper part of the second calibration platform 3 near the visual calibration mechanism. The main structure of the workbench 9 includes two lifting cylinders welded on the second calibration platform 3, and a motor four is fixed between the upper parts of the two lifting cylinders. A sliding frame 10 for controlling the longitudinal movement of the sorting robot is also installed on the upper part of the workbench 9. The main structure of the sliding frame 10 includes a slide rail welded on the upper part of the output shaft of the motor four, and a rectangular sliding hole is opened on the upper part of the slide rail. A screw is rotatably installed in the sliding hole, one end of the screw is connected to the motor five, and a slider is threadedly installed on the screw. The slider is slidably installed in the sliding hole, and a connecting rod with a flange is installed at the bottom of the slider. The connecting rod is flange-connected to the grasping robot. The grasping robot can be lifted and rotated through the workbench 9, and the grasping robot can move longitudinally relative to the second calibration platform 3 to grasp the workpiece through the sliding frame 10.

[0062] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0064] Although the present invention has been described in conjunction with specific embodiments of the present invention, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description.For example, other memory architectures may use the discussed embodiments.

[0065] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A calibration platform based on machine vision application, characterized in that: include: Base (1); A first calibration platform (2) is arranged on the base (1), a first conveying assembly (41) is provided on the first calibration platform (2), and the first calibration platform (2) is provided with a first visual calibration mechanism (51), a discrete mechanism (6) and a reversing mechanism (7) for transferring a workpiece on the first conveying assembly (41) to the discrete mechanism (6) at a conveying end of the first conveying assembly (41); A second calibration platform (3) is arranged on the base (1); the height of the second calibration platform (3) is less than the height of the first calibration platform (2); a portion of the second calibration platform (3) is located below the discrete mechanism (6); a second conveying component (42) and a second visual calibration mechanism (52) are provided on the second calibration platform (3), so that the discrete mechanism (6) can discretize the workpiece on the first conveying component (41) to the second conveying component (42) and calibrate it through the second visual calibration mechanism (52).

2. A calibration platform based on machine vision application according to claim 1, characterized in that: The first conveying assembly (41) and the second conveying assembly (42) have the same structure. Each of the conveying assemblies comprises a plurality of first conveying rollers (401). The plurality of first conveying rollers (401) are rotatably arranged in an array on a corresponding calibration platform. The plurality of first conveying rollers (401) are provided with a first conveyor belt (402) on their outer sleeves. A first motor is provided at the end of each calibration platform, and the first motor is connected to the first conveying roller (401) at the end.

3. The calibration platform based on machine vision application according to claim 1, characterized in that: The discrete mechanism (6) comprises a housing (601), a second motor and a third conveying assembly (602) arranged in the housing (601), the second motor is fixed on the housing (601), the second motor passes through the housing (601) and is connected to the third conveying assembly (602), the housing (601) is fixed below the first calibration platform (2), and one end of the third conveying assembly (602) extends out of the first calibration platform (2); The third conveying assembly (602) comprises a guide roller (6022) and a plurality of second conveying rollers (6021), a second conveying belt (6023) being sleeved on the plurality of second conveying rollers (6021), and the guide roller (6022) is arranged between the plurality of second conveying rollers (6021) and pressed on the second conveying belt (6023) to form a step shape.

4. The calibration platform based on machine vision application according to claim 1, characterized in that: The reversing mechanism (7) comprises two mounting plates (701) and a reversing plate (702) rotatably arranged between the two mounting plates (701), the ends of the two mounting plates (701) being fixed to the ends of the conveying end of the first calibration platform (2), one of the mounting plates (701) being provided with a driving unit (703), and the driving unit (703) being connected to the reversing plate (702).

5. A calibration platform based on machine vision application according to claim 4, characterized in that: The driving unit (703) comprises two meshing gears, one of which is connected to the reversing plate (702) via a connecting shaft, and the other gear is connected to the third motor via a connecting shaft.

6. The calibration platform based on machine vision application according to claim 1, characterized in that: The first visual calibration mechanism (51) and the second visual calibration mechanism (52) have the same structure, and each of the visual calibration mechanisms comprises a truss (501) and a calibration camera device (502) arranged on the truss (501), and the truss (501) is fixed on a corresponding calibration platform.

7. The calibration platform based on machine vision application according to claim 1, characterized in that: A material receiving plate (8) is also provided on the first calibration platform (2), one end of the material receiving plate (8) is located obliquely below the reversing mechanism (7), and the other end of the material receiving plate (8) is located above the second calibration platform (3).

8. The calibration platform based on machine vision application according to claim 1, characterized in that: The second calibration platform (3) is also provided with a workbench (9) for controlling the lifting and rotation of the sorting robot, and the workbench (9) is also provided with a sliding frame (10) for controlling the longitudinal movement of the sorting robot.

9. A calibration platform based on machine vision application according to claim 8, characterized in that: The workbench (9) comprises two lifting cylinders, a fixed plate, and a fourth motor. The two lifting cylinders are fixed on the second calibration platform (3). The fixed plate is fixed to the lever ends of the two lifting cylinders. The fourth motor is fixed to the fixed plate. The sliding frame (10) is fixed to the rotating shaft end of the fourth motor.

10. The calibration platform based on machine vision application according to claim 9, characterized in that: The sliding frame (10) comprises a sliding rail, one end of which is connected to the rotating shaft of the fourth motor, a rectangular sliding hole is provided on the sliding rail, a screw is rotatably arranged in the sliding hole, one end of the screw is connected to the fifth motor, a sliding block is provided on the screw, and a flange for mounting a sorting robot is provided on the sliding block.

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