Steel pipe end face detection device

Abstract

The utility model belongs to the technical field of pipe processing, and discloses a steel pipe end face detection device, which comprises a motor roller way, a detection device and a control device, the measuring module is located on one side of the motor roller way and used for measuring the pipe diameter of the steel pipe; the auxiliary light source is located on one side of the steel pipe axis and used for irradiating the steel pipe end face to generate a diffuse reflection surface; the grinding module is provided with a floating grinding head, and the floating grinding head is used for grinding the steel pipe; the analysis module is arranged on one side of the motor roller way and is used for detecting chemical element components and contents of the steel pipe; the visual module is located on one side of the steel pipe axis. According to the steel pipe polishing device, the vision module is used, the vision assembly in the vision module can shoot the diffuse reflection face of a steel pipe, then pictures are analyzed, the roughness of the steel pipe is obtained, then the steel pipe polishing device can judge whether the steel pipe needs to be polished or not according to the roughness, and the device and process corresponding to the polishing station in the steel pipe production line are provided; the automation degree is high, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing, and particularly relates to a steel pipe end face detection device. Background Art

[0002] In the production of steel pipes in the metallurgical industry, the element composition detection and identification of the steel pipes on the roller table is an important basis for manufacturers to judge whether the quality of the steel pipes is qualified, and it is a necessary process for production operations. At present, the detection and identification of steel pipes by manufacturers is carried out by traditional manual cutting and sampling from the steel pipes and sending them to the laboratory for testing and identification. This inspection and identification method has the characteristics of long cycle and low efficiency, and cannot meet the needs of industrial production. Utility Model Content

[0003] In order to solve at least one problem in the background technology, the utility model provides a steel pipe end surface detection device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A steel pipe end surface detection device comprises a motor roller, a measuring module, a grinding module, an analysis module and a control unit;

[0006] The motor roller is used to transport the steel pipe, and the measuring module is located on one side of the motor roller and is used to measure the diameter of the steel pipe;

[0007] The grinding module is provided with a floating grinding head, and the floating grinding head is used for grinding the steel pipe;

[0008] An auxiliary light source is also installed on one side of the steel pipe, and the auxiliary light source is used to illuminate the end face of the steel pipe to generate a diffuse reflection surface;

[0009] The analysis module is located on one side of the motor roller table and is used to detect the chemical element composition and content of the steel pipe;

[0010] A visual module is also installed on one side of the steel pipe axis; the visual module is symmetrically arranged with the auxiliary light source, and a visual component is arranged inside; the visual component is used to photograph the diffuse reflection surface of the steel pipe, and then characterize the roughness of the diffuse reflection surface;

[0011] The control unit is electrically connected to the motor roller, the measuring module, the grinding module, the auxiliary light source, the analyzing module and the visual component respectively.

[0012] Preferably, the measuring module comprises a measuring probe, a column and a bar light source;

[0013] The column is located on one side of the motor roller table and includes a vertical section and a horizontal section that are perpendicular to each other;

[0014] One end of the vertical section is fixed to the ground, and the other end is fixedly connected to the horizontal section;

[0015] The end of the horizontal section away from the vertical section is used to install a measuring probe, and the measuring probe is located directly above the steel pipe and is used to measure the distance from the steel pipe;

[0016] The strip light source is installed in the vertical section and is at the same height as the axis of the steel pipe, and is used to supplement light for the steel pipe.

[0017] Preferably, the diameter of the steel pipe is equal to the distance between the measuring probe and the motor roller minus the distance between the measuring probe and the steel pipe.

[0018] Preferably, the vision module further comprises an adjustment bracket, and the adjustment bracket is used to install the vision component and adjust the shooting angle of the vision component.

[0019] Preferably, the visual component has a built-in camera, and the visual component is used to photograph the steel pipe through the camera and to determine whether the steel pipe needs to be polished.

[0020] Preferably, the visual component comprises a visual camera, and the visual camera is used to photograph the diffuse reflection surface of the end of the steel pipe, and then characterize the roughness of the diffuse reflection surface.

[0021] Preferably, the grinding module is further provided with a robot, which is located at one side of the steel pipe and is used for clamping the floating grinding head and adjusting the spatial coordinates of the floating grinding head.

[0022] Preferably, it also includes a baffle base, a hydraulic buffer is installed on the upper end of the baffle base, and is used to block the steel pipe in the axial direction of the steel pipe in the forward direction of the steel pipe.

[0023] Preferably, the analysis module includes a shock-absorbing base and a detection and analysis device, the shock-absorbing base is fixed to the ground, and the detection and analysis device is installed on the shock-absorbing base to detect the chemical element composition and content of the steel pipe.

[0024] Preferably, the control unit comprises an upper control box and a lower control box, and the upper control box is electrically connected to the lower control box;

[0025] The lower control box is electrically connected to the robot and the floating grinding head in the grinding module;

[0026] The upper control box is also electrically connected to the measuring probe and the strip light source in the measuring module;

[0027] The upper control box is also electrically connected to the auxiliary light source;

[0028] The upper control box is also electrically connected to the detection and analysis equipment in the analysis module;

[0029] The upper control box is also electrically connected to the visual component.

[0030] Beneficial effects of the utility model:

[0031] 1. The utility model uses a visual module, and its internal visual component can shoot the diffuse reflection surface of the steel pipe, and then analyze the picture to obtain the roughness of the steel pipe. Then the device can judge whether the steel pipe needs to be polished according to the roughness. The device provides a device and process corresponding to the polishing station in the steel pipe production line, with a high degree of automation and improved production efficiency;

[0032] 2. The utility model can automatically adjust the robot grinding track according to the pipe diameter and the stop position of the steel pipe, and automatically grind the end face of the steel pipe;

[0033] 3. The auxiliary light source of the utility model can supplement natural light or infrared light, take photos and videos of the end surface image of the steel pipe, and calculate the stopping distance of the end surface of the steel pipe.

[0034] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic structural diagram of a steel pipe end face detection device of the utility model is shown;

[0037] In the figure: 1. Motor roller; 2. Measuring module; 201. Measuring probe; 202. Column; 203. Strip light source; 3. Grinding module; 301. Robot; 302. Floating grinding head; 4. Auxiliary light source; 5. Upper control box; 6. Lower control box; 7. Analysis module; 701. Shock-absorbing base; 702. Detection and analysis equipment; 8. Baffle base; 9. Vision module; 901. Vision component; 902. Adjustment bracket. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] A steel pipe end surface detection device, which is installed at the end of the industrial roller table, such as Figure 1 As shown, it includes a motor roller 1, a measuring module 2, a grinding module 3, an auxiliary light source 4, an upper control box 5, a lower control box 6, an analysis module 7, a baffle base 8 and a visual module 9. The above components are described below, as follows:

[0040] like Figure 1 As shown, the motor roller 1 is divided into two parts, the motor and the roller, wherein a plurality of rollers are provided, each of which is connected to the output shaft of the motor, so that the motor drives the roller to rotate, and Figure 1 It can be seen that a support frame is set at the lower side of the motor roller 1. When the motor is started, the steel pipe ( Figure 1 The steel pipe A is placed on the roller table, and the steel pipe A moves forward with the rotation of the pipeline ( Figure 1 from right to left in the video).

[0041] like Figure 1 As shown, the measuring module 2 is located on one side of the motor roller 1 and is used to measure the diameter of the steel pipe A. Specifically, the measuring module 2 includes a measuring probe 201, a column 202 and a strip light source 203. The column 202 is located on one side of the motor roller 1 and includes a vertical section and a horizontal section that are perpendicular to each other and are L-shaped. One end of the vertical section is fixed to the ground and the other end is fixedly connected to the horizontal section. The horizontal section is far from the end of the vertical section and is used to install the measuring probe 201. The measuring probe 201 is located directly above the steel pipe A and is used to measure the distance from the steel pipe A. The strip light source 203 is installed in the vertical section, and its height is the same as the axis of the steel pipe A. It is used to fill the background light of the steel pipe A and reduce the influence of natural light on the photo measurement.

[0042] like Figure 1 As shown, the auxiliary light source 4 is located on one side of the axis of the steel pipe A, and is used to illuminate the end face of the steel pipe A (the end face is annular) to generate a diffuse reflection surface; specifically, the auxiliary light source 4 can be a natural light source or an infrared light source, and is symmetrically installed with the visual module 9 relative to the axis of the steel pipe A. The auxiliary light source 4 emits natural light or infrared light to illuminate the end face of the steel pipe A. After diffuse reflection, the light forms a diffuse reflection surface, and the visual module 9 receives the reflected light from the diffuse reflection surface to take photos and videos.

[0043] like Figure 1 As shown, the grinding module 3 is provided with a robot 301 and a floating grinding head 302. The floating grinding head 302 can grind the steel pipe A. The robot 301 can clamp the floating grinding head 302 and adjust the spatial coordinates of the floating grinding head 302. Specifically, the robot 301 is installed on one side of the motor roller 1. The front end mechanical arm can clamp the floating grinding head 302 and grind the end faces of the steel pipe A of different specifications according to the program instructions of the lower control box 6. The floating grinding head 302 adopts a motor grinding wheel mechanism, and compressed air is passed inside for shock absorption to prevent the grinding wheel from being damaged by hard collision during grinding.

[0044] like Figure 1 As shown, the analysis module 7 is arranged on one side of the motor roller 1, and is used to detect the chemical element composition and content of the steel pipe A; specifically, the analysis module 7 includes a shock-absorbing base 701 and a detection and analysis device 702, the shock-absorbing base 701 is fixed to the ground, and the detection and analysis device 702 is installed on the shock-absorbing base 701, and is used to detect the chemical element composition and content of the steel pipe A.

[0045] It should be noted that the detection and analysis equipment 702 is a detection and analysis instrument, which is arranged at the end of the motor roller 1, behind the baffle base 8 ( Figure 1 The detection and analysis equipment 702 can emit a detection laser B to detect and analyze the end face of the steel pipe A to obtain the chemical element composition and content in the steel pipe A. In addition, the detection and analysis equipment 702 can adjust the up and down and left and right movements of the detection laser B according to the measured steel pipe diameter and the stopping distance of the steel pipe, so that the focal length falls on the end face of the steel pipe A.

[0046] It should be further explained that the lower end of the shock-absorbing base 701 is fixed to the ground, and the upper end is connected to the detection and analysis equipment 702, so as to eliminate the influence of on-site vibration on the device of the utility model.

[0047] like Figure 1 As shown, the baffle base 8 is a base welded with steel plates, with a hydraulic buffer installed on the upper end, and is installed in the forward direction of the steel pipe A ( Figure 1 The motor roller 1 is used to block the steel pipe A in the axial direction of the steel pipe A to prevent the motor roller 1 from making an error and the steel pipe A from rushing out of the motor roller 1, thereby causing a safety accident.

[0048] like Figure 1 As shown, the visual module 9 is located on one side of the axis of the steel pipe A, symmetrically arranged with the auxiliary light source 4, and is provided with a visual component 901 inside, and the visual component 901 photographs the diffuse reflection surface of the steel pipe A, and then calculates the roughness of the diffuse reflection surface. In addition, the visual module 9 also includes an adjustment bracket 902, and the adjustment bracket 902 is used to install the visual component 901 and adjust the shooting angle of the visual component 901.

[0049] It should be noted that there is a camera inside the visual component 901, which automatically senses the arrival of the steel pipe A, takes photos and videos of the end face of the steel pipe A, determines whether the end face of the steel pipe A is clean, and determines whether it needs to be polished. At the same time, according to the image of the reflected light from the end face of the steel pipe A, the distance of the end face after the steel pipe A stops is calculated. The adjustment bracket 902 is used to fix the visual component 901 on the side of the detection and analysis equipment 702, and can adjust the angle of the visual component 901 in pitch and horizontal direction, so that the visual component 901 is aligned with the end face of the steel pipe A and receives the reflected light from the auxiliary light source 4.

[0050] It should be noted that the upper control box 5 and the lower control box 6 are the control units of the utility model, wherein the upper control box 5 is electrically connected to the motor roller 1, the measuring probe 201, the strip light source 203, the auxiliary light source 4, the lower control box 6, the detection and analysis equipment 702, and the visual component 901, respectively, and the lower control box 6 is electrically connected to the robot 301 and the floating grinding head 302 in the grinding module 3 to control the working timing of the device of the utility model.

[0051] A method for detecting the end face A of a steel pipe, used in the above-mentioned steel pipe end face detection device, comprises the following steps:

[0052] S1: conveying steel pipe A through motor roller 1;

[0053] S2: Measure the diameter of steel pipe A through measuring module 2;

[0054] S201: The measuring probe 201 in the measuring module 2 emits a measuring laser C from directly above the motor roller 1 to obtain the distance between the measuring probe 201 and the motor roller 1, which is recorded as L1;

[0055] S202: The measuring probe 201 in the measuring module 2 emits a measuring laser C from directly above the steel pipe A to obtain the distance between the measuring probe 201 and the steel pipe A, which is recorded as L2;

[0056] S203: Obtain the diameter of the steel pipe A by subtracting L2 from L1.

[0057] S3: Generate a diffuse reflection surface at the end of the steel pipe A through the auxiliary light source 4;

[0058] S4: Detecting the roughness represented by the diffuse reflection surface of the steel pipe A through the visual module 9;

[0059] S401: Under the condition of the same light source brightness, take a photo of the diffuse reflection surface of the steel pipe whose end surface roughness reaches the target value, and save the photo as a comparison sample;

[0060] S402: Keeping the brightness of the light source unchanged, taking a photo of the diffuse reflection surface of the end of the steel pipe to be measured to obtain an actual photo;

[0061] S403: Characterize the roughness by comparing the light and dark areas of the sample and the actual photo.

[0062] S5: Based on the characterized roughness, determine whether the steel pipe A needs to be polished until the roughness is acceptable;

[0063] S501: Compare the brightness of the same area of ​​the comparison sample and the actual sample. If the brightness of the actual photo is equal to or higher than the diffuse reflection area of ​​the comparison sample, it means that the roughness is qualified, otherwise it means that it is unqualified;

[0064] S502: If the roughness is unqualified, the steel pipe is ground by the floating grinding head 302 in the grinding module 3;

[0065] If the roughness is acceptable, no grinding is performed.

[0066] S6: Detect the chemical element content of the steel pipe A through the analysis module 7.

[0067] The following further describes the working process of the device of the present invention in combination with steps S1 to S6 and the upper control box 5 and the lower control box 6, as follows:

[0068] The motor roller 1 works normally, and the steel pipe A is moved from right to left ( Figure 1 The steel pipe A is transported in the middle direction and stops when it reaches the end of the motor roller 1. At this time, the visual component 901 of the utility model device also visually senses that the steel pipe A has arrived at the designated detection position.

[0069] The upper control box 5 issues a command, the strip light source 203 and the auxiliary light source 4 are turned on, and the visual component 901 takes a photo or video of the end face of the steel pipe A to determine whether the end face roughness of the steel pipe A meets the inspection requirements. If it does not meet the inspection requirements, it needs to be polished; if it meets the inspection requirements, it does not need to be polished. At the same time, the stopping distance of the steel pipe A is calculated based on the photographing results, and the data signal is sent to the upper control box 5.

[0070] The measuring probe 201 on the other side emits a measuring laser C to measure the upper surface height of the steel pipe A, calculates the diameter of the steel pipe, and sends the data to the upper control box 5.

[0071] Case 1: If the visual component 901 determines that the end surface roughness of steel pipe A does not meet the inspection requirements, the upper control box 5 will send instructions to the lower control box 6 and the inspection and analysis equipment 702 after receiving the data signal. The lower control box 6 receives the instruction and switches to the pre-edited trajectory operation program according to the diameter of steel pipe A and the front and rear distance of the end surface of steel pipe A, and sends a grinding instruction to the robot 301 and the floating grinding head 302. The robot 301 and the floating grinding head 302 start to run and grind the end surface of steel pipe A. After the grinding is completed, the upper control box 5 instructs the visual component 901 to check the end surface roughness of steel pipe A again until it meets the inspection requirements. The upper control box 5 instructs the bar light source 203 and the auxiliary light source 4 to turn off.

[0072] On the other side, the detection and analysis equipment 702 receives the instruction and adjusts the position of the detection laser B up and down and left and right according to the diameter parameters of steel pipe A and the front-to-back distance of the end face of steel pipe A, so that the focus of the detection laser B falls on the end face of steel pipe A.

[0073] Waiting for the upper control box 5 to issue a detection instruction, the detection and analysis equipment 702 emits a detection laser B to detect the chemical element composition and content of the end surface of the steel pipe A, and sends the data to the upper control box 5. After receiving the data of the chemical element composition and content, the upper control box 5 issues a detection completion instruction. The detection and analysis equipment 702 receives the signal to stop the detection, and the motor roller 1 receives the signal and starts to transport the steel pipe A to the next section.

[0074] Case 2: When the visual component 901 determines that the roughness of the end face of the steel pipe A meets the detection requirements, the device of the utility model directly skips the grinding step, and the upper control box 5 issues a command to direct the detection and analysis equipment 702 to adjust the position of the detection laser B up and down and left and right so that the focus falls on the end face of the steel pipe A, and then emits the detection laser B to detect the chemical element composition and content of the end face of the steel pipe A.

[0075] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel pipe end face detection device, characterized in that: It comprises a motor roller (1), a measuring module (2), a grinding module (3), an analysis module (7) and a control unit; The motor roller conveyor (1) is used for conveying steel pipes, and the measuring module (2) is located on one side of the motor roller conveyor (1) and is used for measuring the diameter of the steel pipe; The grinding module (3) is provided with a floating grinding head (302), and the floating grinding head (302) is used for grinding the steel pipe; An auxiliary light source (4) is also installed on one side of the steel pipe, and the auxiliary light source (4) is used to illuminate the end face of the steel pipe to generate a diffuse reflection surface; The analysis module (7) is located on one side of the motor roller table (1) and is used to detect the chemical element composition and content of the steel pipe; A visual module (9) is also installed on one side of the steel pipe axis; the visual module (9) is symmetrically arranged with the auxiliary light source (4), and a visual component (901) is arranged inside; the visual component (901) is used to photograph the diffuse reflection surface of the steel pipe, and then characterize the roughness of the diffuse reflection surface; The control unit is electrically connected to the motor roller (1), the measuring module (2), the grinding module (3), the auxiliary light source (4), the analysis module (7) and the visual component (901) respectively.

2. A steel pipe end face detection device according to claim 1, characterized in that: The measuring module (2) comprises a measuring probe (201), a column (202) and a strip light source (203); The column (202) is located on one side of the motor roller table (1), and comprises a vertical section and a horizontal section that are perpendicular to each other; One end of the vertical section is fixed to the ground, and the other end is fixedly connected to the horizontal section; An end of the horizontal section away from the vertical section is used to install a measuring probe (201), and the measuring probe (201) is located directly above the steel pipe and is used to measure the distance from the steel pipe; The strip light source (203) is installed in the vertical section and is at the same height as the axis of the steel pipe, and is used to supplement light for the steel pipe.

3. A steel pipe end face detection device according to claim 1, characterized in that: The diameter of the steel pipe is equal to the distance between the measuring probe (201) and the motor roller (1) minus the distance between the measuring probe (201) and the steel pipe.

4. A steel pipe end face detection device according to claim 1, characterized in that: The visual module (9) further comprises an adjustment bracket (902), wherein the adjustment bracket (902) is used to install the visual component (901) and adjust the shooting angle of the visual component (901).

5. The steel pipe end face detection device according to claim 1, characterized in that: The visual component (901) has a built-in camera, and the visual component (901) is used to photograph the steel pipe through the camera and to determine whether the steel pipe needs to be polished.

6. A steel pipe end face detection device according to claim 1, characterized in that: The visual component (901) comprises a visual camera, which is used to photograph the diffuse reflection surface of the end of the steel pipe, and then characterize the roughness of the diffuse reflection surface.

7. A steel pipe end face detection device according to claim 2, characterized in that: The grinding module (3) is also provided with a robot (301), which is located on one side of the steel pipe and is used to clamp the floating grinding head (302) and adjust the spatial coordinates of the floating grinding head (302).

8. A steel pipe end face detection device according to any one of claims 1 to 7, characterized in that: It also comprises a baffle base (8), the upper end of which is provided with a hydraulic buffer, and is used to block the steel pipe in the axial direction of the steel pipe in the forward direction of the steel pipe.

9. A steel pipe end surface detection device according to claim 8, characterized in that: The analysis module (7) comprises a shock-absorbing base (701) and a detection and analysis device (702), wherein the shock-absorbing base (701) is fixed to the ground, and the detection and analysis device (702) is installed on the shock-absorbing base (701) and is used to detect the chemical element composition and content of the steel pipe.

10. A steel pipe end surface detection device according to claim 9, characterized in that: The control unit comprises an upper control box (5) and a lower control box (6), and the upper control box (5) is electrically connected to the lower control box (6); The lower control box (6) is electrically connected to the robot (301) and the floating grinding head (302) in the grinding module (3); The upper control box (5) is also electrically connected to the measuring probe (201) and the strip light source (203) in the measuring module (2); The upper control box (5) is also electrically connected to the auxiliary light source (4); The upper control box (5) is also electrically connected to the detection and analysis equipment (702) in the analysis module (7); The upper control box (5) is also electrically connected to the visual component (901).

Images