Steel mesh quality inspection device and quality inspection method

Abstract

The present invention belongs to the technical field of steel mesh quality inspection, and discloses a steel mesh quality inspection device and quality inspection method. When the control gantry is translated, the first detection member and the second detection member sweep the transverse reinforcement of the steel mesh, thereby obtaining the position of the transverse reinforcement. When the detection component is translated, the third detection member sweeps the longitudinal reinforcement of the steel mesh, thereby obtaining the position of the longitudinal reinforcement. According to the transverse reinforcement position and the longitudinal reinforcement position obtained by the first detection member, the second detection member, and the third detection member, it is possible to determine whether the transverse reinforcement spacing, the longitudinal reinforcement spacing, the extension length of the transverse reinforcement and the longitudinal reinforcement relative to the steel mesh are qualified, and whether the diagonal size of the steel mesh is qualified. Through the welding point detection module, it is possible to determine whether the welding point between the transverse reinforcement and the longitudinal reinforcement is qualified, and then determine whether the welding quality of the steel mesh is up to standard. The steel mesh quality inspection device and quality inspection method can realize automatic detection of the quality of the steel mesh, improve the quality inspection efficiency of the steel mesh, ensure the acceptance quality of the steel mesh, and realize digital and intelligent quality inspection of the steel mesh.

Description

Technical Field

[0001] The present invention relates to the technical field of steel mesh quality inspection, and in particular to a steel mesh quality inspection device and a quality inspection method. Background Art

[0002] In recent years, with the development of mechanization and automation of construction equipment, in the construction process of underground continuous walls, automatic welding robots are usually used to manufacture the steel mesh of the steel cage. The steel mesh includes multiple cross-arranged transverse bars and multiple longitudinal bars, which are welded together. The welding quality of the steel mesh directly affects the hoisting safety of the steel cage and the quality of the underground continuous wall.

[0003] At present, the quality inspection method for steel mesh mainly relies on manpower, and the steel mesh is generally inspected by visual inspection and measuring tools. In particular, when manpower conducts visual inspection of each weld point of the steel mesh, it is time-consuming and laborious, and there may be false inspections, and bad welds cannot be accurately identified.

[0004] Therefore, there is an urgent need for a steel mesh quality inspection device and a quality inspection method to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a steel mesh quality inspection device and quality inspection method, which can automatically detect the quality of the steel mesh, improve the quality inspection efficiency of the steel mesh, ensure the acceptance quality of the steel mesh, and realize digital and intelligent quality inspection of the steel mesh.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, a steel mesh quality inspection device is provided, wherein a plurality of steel bars of the steel mesh include a plurality of transverse bars spaced and arranged in parallel along a first direction and a plurality of longitudinal bars spaced and arranged in parallel along a second direction, wherein the first direction is perpendicular to the second direction, and the transverse bars and the longitudinal bars are welded to form welding points;

[0008] The steel mesh quality inspection device comprises:

[0009] A door frame, the door frame extends along the second direction and can be translated along the first direction; two ends of the door frame are respectively provided with a first detection member and a second detection member, the first detection member and the second detection member are used to detect the position of the transverse rib;

[0010] A detection component, wherein the detection component is disposed on the door frame so as to be movably disposed along a second direction, and a third detection member is disposed on the detection component, and the third detection member is used to detect the position of the steel bar;

[0011] A solder joint detection module, wherein the solder joint detection module can collect images of the solder joints and determine whether the solder joints are qualified based on the images;

[0012] A data processing module, the data processing module is used to obtain the spacing between adjacent transverse bars, the spacing between adjacent longitudinal bars, whether the protruding length of the transverse bars relative to the steel mesh is qualified, whether the protruding length of the longitudinal bars relative to the steel mesh is qualified, and the diagonal of the steel mesh according to the detection values ​​of the first detection piece, the second detection piece, and the third detection piece; and is used to count the unqualified rate of the welds.

[0013] As a preferred solution of the steel mesh quality inspection device provided by the present invention, the first detection member includes a first position sensor; and / or, the second detection member includes a second position sensor; and / or, the third detection member includes a third position sensor.

[0014] In a second aspect, a steel mesh quality inspection method is provided, which is inspected using the steel mesh quality inspection device as described above, and the steel mesh quality inspection method comprises the following steps:

[0015] S1, controlling the door frame to move along the first direction, during which the first detection member and the second detection member detect the position coordinates of the transverse ribs, and obtaining the spacing between adjacent transverse ribs through the detection values ​​of the first detection member and / or the second detection member;

[0016] S2, controlling the detection component to move along the second direction, during which the third detection member detects the position coordinates of the longitudinal ribs, and obtaining the spacing between adjacent longitudinal ribs through the detection value of the third detection member;

[0017] S3, controlling the detection assembly to translate, so that the third detection member moves from the outermost side of the longitudinal reinforcement at the end to a direction away from the steel mesh by a first preset distance L1, and then controlling the portal to translate, if the third detection member detects the transverse reinforcement, the extension length of the transverse reinforcement relative to the steel mesh is qualified;

[0018] S4, controlling the translation of the portal frame to move the first detection member or the second detection member from the outermost side of the transverse reinforcement at the end to a direction away from the steel mesh by a second preset distance L2, and then controlling the translation of the detection assembly, if the third detection member detects the longitudinal reinforcement, the extension length of the longitudinal reinforcement relative to the steel mesh is qualified;

[0019] S5. Determine the first side length and the second side length of the steel mesh based on the spacing between adjacent transverse bars and the diameter of the transverse bars; determine the third side width and the fourth side width of the steel mesh based on the spacing between adjacent longitudinal bars and the diameter of the longitudinal bars;

[0020] S6, determining the lengths of two diagonals of the steel mesh based on a quadrilateral formed by the first side, the second side, the third side and the fourth side of the steel mesh, and judging whether the ratio of the two diagonals is within an error range;

[0021] S7, controlling the solder joint detection module to collect images of the solder joints, and detecting whether the quality of all the solder joints is qualified;

[0022] S8. Record the number of unqualified solder joints and calculate their percentage.

[0023] As a preferred embodiment of the steel mesh quality inspection method provided by the present invention, in step S1, a signal is triggered when the first detection member and the second detection member move to the outermost edge of the transverse reinforcement, and the coordinate differences between the first detection member and the second detection member when the signals are triggered twice are H1 and H2 respectively, and it is determined whether the average values ​​of H1 and H2 are within the specified range of the transverse reinforcement spacing.

[0024] As a preferred embodiment of the steel mesh quality inspection method provided by the present invention, in step S2, the third detection member triggers a signal when it moves to the outermost edge of the longitudinal reinforcement, and the coordinate difference between the two trigger signals of the third detection member is the spacing of the longitudinal reinforcement.

[0025] As a preferred solution of the steel mesh quality inspection method provided by the present invention, in step S3, the detection component moves from the first end longitudinal reinforcement to the second end longitudinal reinforcement, and when the third detection member touches the outermost edge of the second end longitudinal reinforcement, the detection component is controlled to move a distance of L1+Dz, and then the portal is controlled to translate; Dz is the diameter of the longitudinal reinforcement;

[0026] The first end longitudinal reinforcement and the second end longitudinal reinforcement are two longitudinal reinforcements at two ends of the steel mesh respectively.

[0027] As a preferred solution of the steel mesh quality inspection method provided by the present invention, in step S4, the portal moves from the first end transverse reinforcement to the second end transverse reinforcement, and when the first detection member and / or the second detection member touches the outermost edge of the second end transverse reinforcement, the portal is controlled to move a distance of L2+Dh, and then the detection component is controlled to translate; Dh is the diameter of the transverse reinforcement;

[0028] The first end transverse reinforcement and the second end transverse reinforcement are two transverse reinforcements at two ends of the steel mesh respectively.

[0029] As a preferred solution of the steel mesh quality inspection method provided by the present invention, in step S5, the sum of all coordinate differences H1 detected by the first detection member plus the diameter of the transverse reinforcement is the length of the first side edge;

[0030] The sum of all coordinate differences H2 detected by the second detection member plus the diameter of the transverse rib is the length of the second side edge;

[0031] When the door frame is at the third side position, the sum of all coordinate differences of the third detection member plus the diameter of the longitudinal reinforcement is the third side width;

[0032] When the door frame is at the fourth side position, the sum of all coordinate differences of the third detection member plus the diameter of the longitudinal reinforcement is the fourth side width.

[0033] As a preferred solution of the steel mesh quality inspection method provided by the present invention, in step S7, a weld detection model is stored in the weld detection module, and by comparing the image of the weld with the weld detection model, it is determined whether the quality of the weld is qualified.

[0034] As a preferred solution of the steel mesh quality inspection method provided by the present invention, in step S8, the number of all unqualified welds and the number of all welds on the steel mesh are counted to calculate the overall weld failure rate of the steel mesh;

[0035] Furthermore, the number of unqualified welds on a single steel bar and the total number of welds on the steel bar are counted to calculate the unqualified weld rate of each steel bar.

[0036] Beneficial effects of the present invention:

[0037] The present invention provides a steel mesh quality inspection device and quality inspection method. When the control door frame is translated along the first direction, the first detection member and the second detection member sweep the transverse reinforcement of the steel mesh, thereby obtaining the position of the transverse reinforcement. When the detection assembly is translated along the second direction, the third detection member sweeps the longitudinal reinforcement of the steel mesh, thereby obtaining the position of the longitudinal reinforcement. According to the transverse reinforcement position and the longitudinal reinforcement position obtained by the first detection member, the second detection member and the third detection member, it is possible to determine whether the spacing between the transverse reinforcements, the spacing between the longitudinal reinforcements, the extension length of the transverse reinforcement and the longitudinal reinforcement relative to the steel mesh is qualified, and whether the diagonal size of the steel mesh is qualified, thereby performing a full range of inspection on the shape and size of the steel mesh. Through the welding point detection module, it is possible to determine whether the welding point between the transverse reinforcement and the longitudinal reinforcement is qualified, and then determine whether the welding quality of the steel mesh is up to standard. The steel mesh quality inspection device and quality inspection method can realize automatic detection of the quality of the steel mesh, improve the quality inspection efficiency of the steel mesh, ensure the acceptance quality of the steel mesh, and realize digital and intelligent quality inspection of the steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a first view of a steel mesh quality inspection device and a steel mesh provided in a specific embodiment of the present invention;

[0039] Figure 2It is a second view of the steel mesh quality inspection device and the steel mesh provided in a specific embodiment of the present invention.

[0040] In the figure:

[0041] 10. Transverse reinforcement; 20. Longitudinal reinforcement;

[0042] 110. First end transverse bar; 120. Second end transverse bar;

[0043] 210, first end longitudinal reinforcement; 220, second end longitudinal reinforcement;

[0044] 1. Door frame; 11. First detection part; 12. Second detection part;

[0045] 2. Detection component; 21. Third detection component. DETAILED DESCRIPTION

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0050] like Figure 1 and Figure 2 As shown, this embodiment provides a steel mesh quality inspection device, wherein the multiple steel bars of the steel mesh include multiple transverse bars 10 spaced and arranged in parallel along a first direction and multiple longitudinal bars 20 spaced and arranged in parallel along a second direction, the first direction is perpendicular to the second direction, and the transverse bars 10 and the longitudinal bars 20 are welded to form welding spots. The steel mesh quality inspection device includes a gantry 1, a detection component 2, a welding spot detection module, and a data processing module.

[0051] The door frame 1 extends along the second direction and can be translated along the first direction; the first detection member 11 and the second detection member 12 are respectively arranged at both ends of the door frame 1, and the first detection member 11 and the second detection member 12 are used to detect the position of the transverse reinforcement 10; the detection component 2 is arranged on the door frame 1 in a manner that it can be translated along the second direction, and the detection component 2 is provided with a third detection member 21, and the third detection member 21 is used to detect the position of the steel bar; the welding point detection module can collect the image of the welding point and judge whether the welding point is qualified according to the image; the data processing module is connected to the first detection member 11, the second detection member 12, the third detection member 21 and the welding point detection module. The data processing module is used to obtain the spacing between adjacent transverse reinforcements 10, the spacing between adjacent longitudinal reinforcements 20, whether the extension length of the transverse reinforcement 10 relative to the steel mesh is qualified, whether the extension length of the longitudinal reinforcement 20 relative to the steel mesh is qualified, and the diagonal of the steel mesh according to the detection values ​​of the first detection member 11, the second detection member 12, and the third detection member 21; and the data processing module is also used to count the unqualified rate of the welding point.

[0052] When the control gantry 1 is translated along the first direction, the first detection member 11 and the second detection member 12 sweep the transverse reinforcement 10 of the steel mesh, thereby obtaining the position of the transverse reinforcement 10. When the detection assembly 2 is translated along the second direction, the third detection member 21 sweeps the longitudinal reinforcement 20 of the steel mesh, thereby obtaining the position of the longitudinal reinforcement 20. According to the positions of the transverse reinforcement 10 and the longitudinal reinforcement 20 obtained by the first detection member 11, the second detection member 12 and the third detection member 21, it is possible to determine whether the spacing between the transverse reinforcements 10, the spacing between the longitudinal reinforcements 20, whether the extension lengths of the transverse reinforcements 10 and the longitudinal reinforcements 20 relative to the steel mesh are qualified, and whether the diagonal size of the steel mesh is qualified, thereby performing a full range of inspections on the shape and size of the steel mesh. Through the welding point detection module, it is possible to determine whether the welding points between the transverse reinforcement 10 and the longitudinal reinforcement 20 are qualified, and then determine whether the welding quality of the steel mesh is up to standard. The steel mesh quality inspection device and quality inspection method can realize automatic detection of the quality of the steel mesh, improve the quality inspection efficiency of the steel mesh, ensure the acceptance quality of the steel mesh, and realize digital and intelligent quality inspection of the steel mesh.

[0053] Optionally, the first detection member 11 includes a first position sensor; and / or, the second detection member 12 includes a second position sensor; and / or, the third detection member 21 includes a third position sensor. The position sensor has high accuracy and can accurately obtain the positions of the transverse reinforcement 10 and the longitudinal reinforcement 20, thereby improving the reliability of the quality inspection of the steel mesh.

[0054] Based on the above-mentioned steel mesh quality inspection device, this embodiment also provides a steel mesh quality inspection method, comprising the following steps:

[0055] S1, control the portal frame 1 to move along the first direction, during which the first detection member 11 and the second detection member 12 detect the position coordinates of the transverse reinforcement 10, and obtain the spacing between adjacent transverse reinforcements 10 through the detection values ​​of the first detection member 11 and / or the second detection member 12. That is, the spacing of the transverse reinforcement 10 can be obtained based on the detection value of the first detection member 11, or based on the detection value of the second detection member 12, or the spacing of the transverse reinforcement 10 can be obtained in combination with the detection values ​​of the first detection member 11 and the second detection member 12, and the obtained spacing value of the transverse reinforcement 10 is compared with the specified range to check whether the spacing of the transverse reinforcement 10 of the steel mesh is qualified.

[0056] In this embodiment, in step S1, a signal is triggered when the first detection member 11 and the second detection member 12 move to the outermost edge of the transverse rib 10, and the coordinate differences between the first detection member 11 and the second detection member 12 when the two trigger signals are triggered are H1 and H2 respectively, and it is determined whether the average values ​​of H1 and H2 are within the specified range of the spacing between the transverse ribs 10.

[0057] Specifically, when the door frame 1 moves along the first direction, the longitudinal position coordinates Yn of the first detection member 11 at the previous trigger signal and the longitudinal position coordinates Y(n+1) at the next trigger signal are recorded, and the difference between Y(n+1) and Yn is H1, and the spacing of the transverse ribs 10 on the side where the first detection member 11 is located is obtained; at the same time, the longitudinal position coordinates Ym of the second detection member 12 at the previous trigger signal and the longitudinal position coordinates Y(m+1) at the next trigger signal are recorded, and the difference between Y(m+1) and Ym is H2, and the spacing of the transverse ribs 10 on the side where the second detection member 12 is located is obtained. The average value of H1 and H2 is taken as the spacing of the transverse ribs 10, and the data is more reliable.

[0058] The spacing of transverse reinforcement 10 should be an integral multiple of 25mm, the minimum spacing should be 100mm, and the allowable deviation of the spacing should be the larger value of ±10mm of the specified spacing and ±5% of the specified spacing.

[0059] S2, controlling the detection component 2 to move along the second direction, during which the third detection member 21 detects the position coordinates of the longitudinal ribs 20, and the spacing between adjacent longitudinal ribs 20 is obtained through the detection value of the third detection member 21.

[0060] In this embodiment, in step S2, the third detection member 21 triggers a signal when it moves to the outermost edge of the longitudinal rib 20, and the coordinate difference between the two trigger signals of the third detection member 21 is the spacing of the longitudinal rib 20. That is, the third detection member 21 triggers a signal as soon as it scans the longitudinal rib 20, and records the position coordinates.

[0061] Specifically, when the detection component 2 translates along the second direction, the lateral position coordinate Xn of the third detection member 21 at the previous trigger signal and the lateral position coordinate X(n+1) at the next trigger signal are recorded, and the difference between X(n+1) and Xn is the spacing value of the longitudinal ribs 20.

[0062] The spacing of longitudinal reinforcement 20 should be an integral multiple of 50mm, the minimum spacing should be 100mm, and the allowable deviation of the spacing should be the larger value of ±10mm of the specified spacing and ±5% of the specified spacing.

[0063] Preferably, when detecting the spacing of the longitudinal bars 20, the portal frame 1 is controlled to move from one end to the other end of the steel mesh to multiple points in sequence along the first direction, and the portal frame 1 stops once at each point, so that the detection component 2 detects the spacing of the longitudinal bars 20 at the point. In this way, there are multiple sets of data on the spacing between each two adjacent longitudinal bars 20, and the average value can be taken and compared with the specified spacing of the longitudinal bars 20.

[0064] In this embodiment, see Figure 2, multiple detection components 2 are arranged on the door frame 1, each detection component 2 is responsible for a part of the area, and can detect the position of the longitudinal reinforcement 20 in the responsible area, so as to obtain the spacing of the longitudinal reinforcement 20 in the responsible area. Through multiple detection components 2, the spacing values ​​of all the longitudinal reinforcements 20 of the steel mesh can be quickly obtained, thereby improving the detection efficiency. Of course, in other embodiments, only one detection component 2 can be set.

[0065] S3, control the detection component 2 to translate, so that the third detection piece 21 moves from the outermost side of the longitudinal reinforcement 20 located at the end to the direction away from the steel mesh by a first preset distance L1, and then control the portal frame 1 to translate, if the third detection piece 21 detects the transverse reinforcement 10, the protruding length of the transverse reinforcement 10 relative to the steel mesh is qualified.

[0066] See also Figure 1 and Figure 2 In step S3, the detection component 2 moves from the first end longitudinal reinforcement 210 to the second end longitudinal reinforcement 220. When the third detection member 21 touches the outermost edge of the second end longitudinal reinforcement 220, the detection component 2 is controlled to move a distance of L1+Dz, and then the portal frame 1 is controlled to translate. Dz is the diameter of the longitudinal reinforcement 20; the first end longitudinal reinforcement 210 and the second end longitudinal reinforcement 220 are the two longitudinal reinforcements 20 at both ends of the steel mesh.

[0067] The first preset distance L1 is 25 mm, for example. Figure 2 The detection component 2 on the far right moves, and when the third detection member 21 on it touches the outermost edge of the longitudinal reinforcement 210 at the first end, it stops moving, which serves as the starting position for detecting the extension length of the first end of the transverse reinforcement 10. After that, the detection component 2 is controlled to move 25 mm away from the steel mesh (specifically, Figure 2 Then, the portal frame 1 is controlled to translate along the first direction. During this period, if the third detection member 21 detects the transverse reinforcement 10, it means that the first end of the transverse reinforcement 10 extends longer than or equal to 25 mm relative to the reinforcement mesh, which is qualified. On the contrary, if the third detection member 21 does not detect the transverse reinforcement 10, it means that the first end of the transverse reinforcement 10 extends longer than 25 mm relative to the reinforcement mesh, which is unqualified.

[0068] Likewise, control Figure 2 The leftmost detection component 2 moves, and when the third detection member 21 on it touches the outermost edge of the second end longitudinal reinforcement 220, it stops moving, which serves as the starting position for detecting the extension length of the second end of the transverse reinforcement 10. After that, the detection component 2 is controlled to move 25mm+Dz away from the steel mesh (specifically Figure 2Then, the portal frame 1 is controlled to translate along the first direction. During this period, if the third detection member 21 detects the transverse reinforcement 10, it means that the second end of the transverse reinforcement 10 extends outward from the reinforcement mesh by more than or equal to 25 mm, which is qualified. On the contrary, if the third detection member 21 does not detect the transverse reinforcement 10, it means that the second end of the transverse reinforcement 10 extends outward from the reinforcement mesh by less than 25 mm, which is unqualified.

[0069] S4, control the portal frame 1 to translate, so that the first detection member 11 or the second detection member 12 moves from the outermost side of the transverse reinforcement 10 located at the end to the direction away from the steel mesh by a second preset distance L2, and then control the detection component 2 to translate, if the third detection member 21 detects the longitudinal reinforcement 20, then the protruding length of the longitudinal reinforcement 20 relative to the steel mesh is qualified.

[0070] In step S4, the portal frame 1 moves from the first end transverse reinforcement 110 to the second end transverse reinforcement 120. When the first detection member 11 and / or the second detection member 12 touches the outermost edge of the second end transverse reinforcement 120, the portal frame 1 is controlled to move a distance of L2+Dh, and then the detection component 2 is controlled to translate. Dh is the diameter of the transverse reinforcement 10; the first end transverse reinforcement 110 and the second end transverse reinforcement 120 are two transverse reinforcements 10 at both ends of the steel mesh.

[0071] See also Figure 1 and Figure 2 , the second preset distance L2 is exemplarily 25 mm, the portal frame 1 is controlled to translate, and when the first detection member 11 or the second detection member 12 touches the outermost edge of the first end transverse reinforcement 110, the movement is stopped, which is used as the starting position for the detection of the extension length of the first end of the longitudinal reinforcement 20. After that, the portal frame 1 is controlled to move 25 mm (specifically, Figure 2 , which means it moves upward). Subsequently, the detection assembly 2 is controlled to move horizontally. During this period, if the third detection member 21 detects the longitudinal reinforcement 20, it means that the first end of the longitudinal reinforcement 20 extends outward from the reinforcement mesh by more than or equal to 25 mm, which is qualified. On the contrary, if the third detection member 21 does not detect the transverse reinforcement 10, it means that the first end of the longitudinal reinforcement 20 extends outward from the reinforcement mesh by less than 25 mm, which is unqualified.

[0072] Similarly, when the first detection member 11 or the second detection member 12 touches the outermost edge of the second end transverse reinforcement 120, the movement is stopped, which serves as the starting position for detecting the extension length of the first end of the longitudinal reinforcement 20. After that, the gantry 1 is controlled to move away from the steel mesh by a distance of 25 mm + Dh (specifically Figure 2). Subsequently, the detection assembly 2 is controlled to translate. During this period, if the third detection member 21 detects the longitudinal reinforcement 20, it means that the second end of the longitudinal reinforcement 20 extends outward from the reinforcement mesh by more than or equal to 25 mm, which is qualified. On the contrary, if the third detection member 21 does not detect the transverse reinforcement 10, it means that the second end of the longitudinal reinforcement 20 extends outward from the reinforcement mesh by less than 25 mm, which is unqualified.

[0073] S5. Determine the first side length and the second side length of the steel mesh based on the spacing between adjacent transverse bars 10 and the diameter of the transverse bars 10; determine the third side width and the fourth side width of the steel mesh based on the spacing between adjacent longitudinal bars 20 and the diameter of the longitudinal bars 20.

[0074] Specifically, in step S5, the sum of all coordinate differences H1 detected by the first detection member 11 plus the diameter Dh of the transverse rib 10 is the length of the first side edge, that is, the sum of the spacings of the transverse ribs 10 detected by the first detection member 11 plus the diameter Dh of the transverse rib 10 is Figure 2 The right length of the middle reinforcement mesh.

[0075] The sum of all coordinate differences H2 detected by the second detection member 12 plus the diameter Dh of the transverse rib 10 is the length of the second side edge, that is, the sum of the spacing between the transverse ribs 10 detected by the second detection member 12 plus the diameter Dh of the transverse rib 10 is Figure 2 The left length of the middle mesh.

[0076] When the door frame 1 is at the third side position, the sum of all coordinate differences of the third detection member 21 plus the diameter Dz of the longitudinal reinforcement 20 is the third side width. That is, when the door frame 1 is at the first end transverse reinforcement 110 position, the sum of all longitudinal reinforcement 20 spacings detected by the plurality of third detection members 21 plus the diameter Dz of the longitudinal reinforcement 20 is Figure 2 The upper width of the middle reinforcement mesh.

[0077] When the door frame 1 is at the fourth side position, the sum of all coordinate differences of the third detection member 21 plus the diameter of the longitudinal reinforcement 20 is the fourth side width. That is, when the door frame 1 is at the second end transverse reinforcement 120 position, the sum of all longitudinal reinforcement 20 spacings detected by the plurality of third detection members 21 plus the diameter Dz of the longitudinal reinforcement 20 is Figure 2 The lower width of the middle reinforcement mesh.

[0078] The allowable deviation of the length and width of the steel mesh should be the larger value of the specified length and width value ±25mm and the specified length and width value ±0.5%.

[0079] S6. Determine the lengths of two diagonals of the steel mesh based on a quadrilateral formed by the first side, the second side, the third side and the fourth side of the steel mesh, and judge whether the ratio of the two diagonals is within an error range.

[0080] According to the four side lengths of the steel mesh obtained in step S5, the lengths of the two diagonals of the steel mesh are calculated respectively, and the ratio of the two diagonal lengths is the diagonal difference. The allowable deviation of the diagonal difference should be ±0.5% of the specified diagonal difference.

[0081] S7, controlling the solder joint detection module to collect images of solder joints, and detecting whether the quality of all solder joints is qualified.

[0082] In step S7, a solder joint detection model is stored in the solder joint detection module, and whether the quality of the solder joint is qualified is determined by comparing the image of the solder joint with the solder joint detection model.

[0083] Specifically, the solder joint detection model adopts a target detection algorithm, the target detection algorithm uses yolov8, and the pre-trained weight parameter uses yolov8m. The present invention does not specify a specific target detection algorithm, and other target detection algorithms such as yolo series, Fastrcnn series, SSD series, etc. are optional. When the solder joint detection model is established, it is necessary to first collect a certain number of solder joint images, and then annotate the features of each solder joint image. The annotation can directly use two classification labels of "qualified" and "unqualified", or define multiple feature labels for the solder joint features, such as "full", "indentation", "deviation", "desoldering" and other features for annotation, and then obtain the solder joint quality inspection results through multi-feature fusion reasoning. The present invention does not make specific limitations.

[0084] The annotated weld spot images are imported into the target detection algorithm for network training to obtain a weld spot detection model, which is deployed to the control computer of the on-site steel mesh quality inspection device. After obtaining the signal that welding is completed, the control computer controls the image acquisition module (such as a camera) of the steel mesh quality inspection device to acquire the current weld spot image, and uses the image to perform weld spot quality inspection to obtain the weld spot detection result.

[0085] S8. Record the number of unqualified solder joints and calculate their percentage.

[0086] In step S8, the number of all unqualified welds and the number of all welds on the steel mesh are counted to calculate the overall weld failure rate of the steel mesh. The ratio between the number of all unqualified welds and the number of all welds on the steel mesh is the overall weld failure rate, which should be less than 1%.

[0087] And, the number of unqualified welds on a single steel bar and the total number of welds on the steel bar are counted to calculate the unqualified weld rate of each steel bar. The ratio between the number of unqualified welds on a single steel bar and the total number of welds on the steel bar is the unqualified weld rate of a single steel bar. For the steel bars in the middle position, the unqualified weld rate of a single steel bar should be less than 50%; for the outermost steel bars, i.e., the first end transverse bar 110, the second end transverse bar 120, the first end longitudinal bar 210 and the second end longitudinal bar 220, the weld qualification rate is required to be 100%.

[0088] In this embodiment, the steel mesh quality inspection device is a welding robot, and a first position sensor and a second position sensor are arranged at both ends of the gantry 1 of the welding robot. A plurality of welding guns are movably arranged on the gantry 1 of the welding robot along the second direction, and each welding gun is provided with a detection component 2. After the welding robot completes welding the steel mesh, the quality of the steel mesh can be inspected, which reduces the transportation process and improves the quality inspection efficiency.

[0089] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Steel mesh quality inspection device, characterized in that: The plurality of steel bars of the steel mesh include a plurality of transverse bars (10) arranged in parallel and at intervals along a first direction and a plurality of longitudinal bars (20) arranged in parallel and at intervals along a second direction, the first direction being perpendicular to the second direction, the transverse bars (10) and the longitudinal bars (20) being welded to form welding points; The steel mesh quality inspection device comprises: A door frame (1), the door frame (1) extending along the second direction and being translatable along the first direction; a first detection member (11) and a second detection member (12) are respectively provided at two ends of the door frame (1), the first detection member (11) and the second detection member (12) being used to detect the position of the transverse rib (10); A detection component (2), the detection component (2) being arranged on the door frame (1) so as to be translatably movable along a second direction, the detection component (2) being provided with a third detection member (21), the third detection member (21) being used to detect the position of the steel bar; A solder joint detection module, wherein the solder joint detection module can collect images of the solder joints and determine whether the solder joints are qualified based on the images; A data processing module, the data processing module is used to obtain the spacing between adjacent transverse bars (10), the spacing between adjacent longitudinal bars (20), whether the protruding length of the transverse bars (10) relative to the steel mesh is qualified, whether the protruding length of the longitudinal bars (20) relative to the steel mesh is qualified, and the diagonal of the steel mesh according to the detection values ​​of the first detection member (11), the second detection member (12), and the third detection member (21); and is used to count the unqualified rate of the weld points.

2. The steel mesh quality inspection device according to claim 1, characterized in that: The first detection member (11) includes a first position sensor; and / or the second detection member (12) includes a second position sensor; and / or the third detection member (21) includes a third position sensor.

3. A steel mesh quality inspection method, characterized in that: The steel mesh quality inspection device according to claim 1 or 2 is used for inspection, and the steel mesh quality inspection method comprises the following steps: S1, controlling the door frame (1) to move along the first direction, during which the first detection member (11) and the second detection member (12) detect the position coordinates of the transverse ribs (10), and obtaining the spacing between adjacent transverse ribs (10) through the detection values ​​of the first detection member (11) and / or the second detection member (12); S2, controlling the detection component (2) to move along the second direction, during which the third detection component (21) detects the position coordinates of the longitudinal ribs (20), and obtaining the spacing between adjacent longitudinal ribs (20) through the detection value of the third detection component (21); S3, controlling the detection component (2) to translate so that the third detection member (21) moves from the outermost side of the longitudinal reinforcement (20) at the end to a direction away from the steel mesh by a first preset distance L1, and then controlling the door frame (1) to translate, if the third detection member (21) detects the transverse reinforcement (10), the extension length of the transverse reinforcement (10) relative to the steel mesh is qualified; S4, controlling the portal frame (1) to translate so that the first detection member (11) or the second detection member (12) moves from the outermost side of the transverse reinforcement (10) at the end to a direction away from the reinforcement mesh by a second preset distance L2, and then controlling the detection component (2) to translate, if the third detection member (21) detects the longitudinal reinforcement (20), then the extension length of the longitudinal reinforcement (20) relative to the reinforcement mesh is qualified; S5. Determine the first side length and the second side length of the steel mesh based on the spacing between adjacent transverse bars (10) and the diameter of the transverse bars (10); determine the third side width and the fourth side width of the steel mesh based on the spacing between adjacent longitudinal bars (20) and the diameter of the longitudinal bars (20); S6, determining the lengths of two diagonals of the steel mesh based on a quadrilateral formed by the first side, the second side, the third side and the fourth side of the steel mesh, and judging whether the ratio of the two diagonals is within an error range; S7, controlling the solder joint detection module to collect images of the solder joints, and detecting whether the quality of all the solder joints is qualified; S8. Record the number of unqualified solder joints and calculate their percentage.

4. The steel mesh quality inspection method according to claim 3, characterized in that: In step S1, a signal is triggered when the first detection member (11) and the second detection member (12) move to the outermost edge of the transverse rib (10), and the coordinate differences of the first detection member (11) and the second detection member (12) when the signals are triggered twice are H1 and H2 respectively, and it is determined whether the average value of H1 and H2 is within a specified range of the spacing between the transverse ribs (10).

5. The steel mesh quality inspection method according to claim 4, characterized in that: In step S2, the third detection member (21) triggers a signal when it moves to the outermost edge of the longitudinal rib (20), and the coordinate difference between the two trigger signals of the third detection member (21) is the spacing of the longitudinal ribs (20).

6. The steel mesh quality inspection method according to claim 5, characterized in that: In step S3, the detection component (2) moves from the first end longitudinal rib (210) to the second end longitudinal rib (220), and when the third detection member (21) touches the outermost edge of the second end longitudinal rib (220), the detection component (2) is controlled to move a distance L1+Dz, and then the door frame (1) is controlled to translate; Dz is the diameter of the longitudinal rib (20); The first end longitudinal reinforcement (210) and the second end longitudinal reinforcement (220) are respectively two longitudinal reinforcements (20) at two ends of the steel mesh.

7. The steel mesh quality inspection method according to claim 5, characterized in that: In step S4, the door frame (1) moves in the direction from the first end transverse rib (110) to the second end transverse rib (120), and when the first detection member (11) and / or the second detection member (12) touches the outermost edge of the second end transverse rib (120), the door frame (1) is controlled to move a distance of L2+Dh, and then the detection component (2) is controlled to translate; Dh is the diameter of the transverse rib (10); The first end transverse reinforcement (110) and the second end transverse reinforcement (120) are two transverse reinforcements (10) at two ends of the steel mesh respectively.

8. The steel mesh quality inspection method according to claim 5, characterized in that: In step S5, the sum of all coordinate differences H1 detected by the first detection member (11) plus the diameter of the transverse rib (10) is the length of the first side edge; The sum of all coordinate differences H2 detected by the second detection member (12) plus the diameter of the transverse rib (10) is the length of the second side edge; When the door frame (1) is at the third side position, the sum of all coordinate differences of the third detection member (21) plus the diameter of the longitudinal rib (20) is the third side width; When the door frame (1) is at the fourth side position, the sum of all coordinate differences of the third detection member (21) plus the diameter of the longitudinal rib (20) is the fourth side width.

9. The steel mesh quality inspection method according to claim 3, characterized in that: In step S7, a solder joint detection model is stored in the solder joint detection module, and whether the quality of the solder joint is qualified is determined by comparing the image of the solder joint with the solder joint detection model.

10. The steel mesh quality inspection method according to claim 3, characterized in that: In step S8, the number of all unqualified welds and the number of all welds on the steel mesh are counted to calculate the overall weld failure rate of the steel mesh; Furthermore, the number of unqualified welds on a single steel bar and the total number of welds on the steel bar are counted to calculate the unqualified weld rate of each steel bar.

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