Method for detecting residual stress of straightened steel structure column

Abstract

The invention belongs to the technical field of stress detection, and particularly relates to a method for detecting residual stress of a straightened steel structure column, which comprises a mounting rack, a driving part is arranged at the upper part of the mounting rack, and the driving part can convey and adjust the to-be-detected steel structure column; a cleaning part is arranged in the mounting frame, and the cleaning part cleans the detection position through rotational friction with the outer edge of the steel structure column; a detection part is further arranged in the mounting frame, a glue adding part is arranged in the detection part, in the process that the detection part moves towards the steel structure column, the glue adding part can firstly coat the cleaned steel structure column with glue, and then the detection part is tightly attached to the glue coating position to conduct ultrasonic detection on the steel structure column. The ultrasonic coupling agent is smeared when the steel structure column is transported, and the accuracy of data in the ultrasonic detection process is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of stress detection, and in particular relates to a residual stress detection method after a steel structure column is straightened. Background Art

[0002] During the manufacturing and processing of steel columns, residual stress is often generated due to factors such as welding, cooling and uneven load distribution. Residual stress will affect the bearing capacity, stability and service life of steel columns. Therefore, it is very important to detect residual stress in straightened steel columns.

[0003] The residual stress in the steel structure column after straightening may lead to changes in the failure mode under static and dynamic loads, thus affecting the safety and reliability of the structure, causing fatigue, cracking, deformation and other problems, thus affecting the overall performance and service life of the structure. Summary of the invention

[0004] The purpose of the present invention is to provide a residual stress detection method for a steel structure column after straightening, which can apply ultrasonic coupling agent to the steel structure column during transportation to ensure the accuracy of data during ultrasonic detection.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A method for detecting residual stress of a steel structure column after straightening, comprising a mounting frame, wherein a driving part is arranged on the upper part of the mounting frame, and the driving part can transport and adjust the steel structure column to be detected;

[0007] A cleaning part is provided inside the mounting frame, and the cleaning part cleans the detection position by rotating and rubbing against the outer edge of the steel structure column;

[0008] The mounting frame is also provided with a detection part inside, and a glue adding part is provided inside the detection part. When the detection part moves toward the steel structure column, the glue adding part can first apply glue to the cleaned steel structure column position, and then the detection part and the glue applying position are closely attached to perform ultrasonic detection on the steel structure column:

[0009] The detection part includes an electric cylinder, a detection seat, an ultrasonic probe, an elastic pressure piece, a positioning camera and a control unit. The detection seat is slidably arranged inside the mounting frame, and one side of the detection seat is fixedly connected to the output end of the electric cylinder. The ultrasonic probe is slidably connected to the inside of the detection seat, the elastic pressure piece is arranged between the detection seat and the ultrasonic probe, the positioning camera is fixedly connected to the detection seat, and the positioning camera is arranged at a position close to the cleaning part, the control unit is fixedly connected to one side of the mounting frame, and the control unit is electrically connected to the electric cylinder and the ultrasonic probe.

[0010] In a preferred embodiment, the driving part includes a driving motor, a driving column, a transmission belt, an extrusion plate, an elastic fixing part and an extrusion column. The driving motor is fixedly connected to the inside of the mounting frame. Two driving columns are provided, and the two driving columns are rotatably arranged inside the two ends of the mounting frame respectively. One of the driving columns is fixedly connected to the output end of the driving motor, and the inner side of the transmission belt contacts the outer edge of the driving column. Two extrusion plates are provided, and the two extrusion plates are slidably connected to the inside of the two ends of the mounting frame respectively. The elastic fixing part is provided between the mounting frame and the extrusion plate. The extrusion column is rotatably arranged at the lower end of the extrusion plate, and the extrusion column corresponds vertically to the driving column.

[0011] In a preferred embodiment, a positioning groove is provided on the outer edge of the driving column, and the positioning groove matches the outer edge of the steel structure column.

[0012] In a preferred solution, the positioning groove and the outer edge of the extrusion column are both covered with rubber sleeves.

[0013] In a preferred embodiment, the cleaning part includes a rotating motor, a rotating shaft, a transmission belt, a cleaning seat and a cleaning roller. The rotating motor is fixedly connected to the inside of the mounting frame, the rotating shaft is rotatably arranged inside the mounting frame, the transmission belt is arranged at the output end of the rotating motor and the outer edge of the rotating shaft, the cleaning seat is assembled inside the mounting frame, and the cleaning roller is rotatably arranged inside the cleaning seat.

[0014] In a preferred embodiment, a spiral cleaning brush is provided on the outer edge of the cleaning roller.

[0015] In a preferred embodiment, the glue adding part includes a sliding seat, an elastic extrusion piece, a limit seat, an elastic reset piece, a rotating wheel, a nozzle, a connecting pipe, an infusion pump and a liquid storage tank. The sliding seat is slidably arranged inside the other side of the detection seat, the elastic extrusion piece is arranged between the sliding seat and the detection seat, the limit seat is slidably arranged inside the sliding seat, the elastic reset piece is arranged between the limit seat and the sliding seat, the rotating wheel is rotatably arranged at the lower end of the limit seat, and the rotating wheel corresponds vertically to the steel structure column, the nozzle is fixedly connected to the lower end of the detection seat, and the nozzle is also vertically corresponding to the steel structure column, one end of the connecting pipe is connected to the nozzle, and the connecting pipe is bent and arranged inside the limit seat, the infusion pump is fixedly arranged inside the mounting frame, the output end of the infusion pump is fixedly connected to the other end of the connecting pipe, the liquid storage tank is fixedly arranged inside the mounting frame, and the lower end of the liquid storage tank is connected to the input end of the infusion pump.

[0016] In a preferred embodiment, the rotating wheel, the nozzle and the ultrasonic probe are arranged in a stepped manner when not in contact with the steel structure column.

[0017] In a preferred solution, a guide groove is provided inside the sliding seat, and the inside of the guide groove is slidably connected to two sides of the limiting seat.

[0018] In a preferred solution, an extrusion block is arranged inside the limiting seat, and the outer edge of the extrusion block matches with the bending part of the connecting pipe.

[0019] The technical effects achieved by the present invention are:

[0020] The present invention adopts a driving part design. When the steel structure column is between the driving column and the extrusion column, the elastic pressure of the elastic fixing member is applied to the extrusion plate, so that the extrusion plate drives the extrusion column to apply an extrusion force in the direction of the driving column. The steel structure column is fixed between the driving column and the extrusion column by this extrusion force, ensuring that the driving column drives the steel structure column.

[0021] The present invention adopts the design of the cleaning part to transmit power to the rotating shaft through the output end of the rotating motor through the transmission belt, so that the rotating shaft rotates, and the cleaning roller inside the cleaning seat is driven to rotate through the rotation of the rotating shaft. The rotation of the cleaning roller rubs against the outer edge of the steel structure column, thereby removing impurities at the detection position of the outer edge of the steel structure column, ensuring the cleanliness of the detection position of the steel structure column, and then ensuring the accuracy of subsequent ultrasonic detection;

[0022] The present invention adopts the design of the detection part and the glue adding part. Through the stepped arrangement of the rotating wheel, the nozzle and the ultrasonic probe, the three can contact the steel structure column in sequence, and the rotating wheel, the nozzle and the ultrasonic probe are arranged horizontally at the steel structure column. The limiting of the rotating wheel makes the limiting seat gradually shrink into the interior of the sliding seat, so that the connecting pipe loses the squeezing of the limiting seat and opens automatically; after the interior of the connecting pipe is opened, the ultrasonic coupling agent inside can be sprayed on the steel structure column when the nozzle contacts the steel structure column; after the ultrasonic coupling agent is sprayed, the ultrasonic probe can later contact the ultrasonic coupling agent coating area of ​​the steel structure column; thus, the step-by-step linkage of the rotating wheel, the nozzle and the ultrasonic probe is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0024] Figure 2 is an overall internal cross-sectional view of an embodiment of the present invention;

[0025] Figure 3 is an exploded view of a driving portion of an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a driving column according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of a cleaning unit, a detection unit and a glue adding unit of an embodiment of the present invention;

[0028] Figure 6 is an exploded view of a cleaning unit of an embodiment of the present invention;

[0029] Figure 7 is a top cross-sectional view of a cleaning portion of an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the contact between the cleaning part, the detection part and the steel structure column of the embodiment of the present invention;

[0031] Fig. 9 It is a schematic diagram of an embodiment of the present invention in which the cleaning part and the detection part are not in contact with the steel structure column;

[0032] Fig.10 It is an exploded view of the cleaning part and the detection part of the embodiment of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Mounting frame; 2. Driving unit; 201. Driving motor; 202. Driving column; 2021. Positioning slot; 203. Transmission belt; 204. Extrusion plate; 205. Elastic fixing member; 206. Extrusion column; 3. Cleaning unit; 301. Rotating motor; 302. Rotating shaft; 303. Transmission belt; 304. Cleaning seat; 305. Cleaning roller; 4. Detection unit; 401. Electric cylinder; 402. Detection seat; 403. Ultrasonic probe; 404. Elastic pressure member; 405. Positioning camera; 406. Control unit; 5. Glue adding unit; 501. Sliding seat; 502. Elastic extrusion member; 503. Limiting seat; 5031. Extrusion block; 504. Elastic reset member; 505. Rotating wheel; 506. Spray nozzle; 507. Connecting pipe; 508. Infusion pump; 509. Liquid storage tank. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0039] See also Figures 1 to 10 As shown, the present invention provides a residual stress detection method for a steel structure column after straightening, comprising a mounting frame 1, a driving part 2 is arranged on the upper part of the mounting frame 1, and the driving part 2 can transport and adjust the steel structure column to be detected;

[0040] A cleaning part 3 is provided inside the mounting frame 1, and the cleaning part 3 cleans the detection position by rotating and rubbing against the outer edge of the steel structure column;

[0041] The mounting frame 1 is also provided with a detection unit 4, and the detection unit 4 is provided with a glue adding unit 5. When the detection unit 4 moves toward the steel structure column, the glue adding unit 5 can first apply glue to the cleaned steel structure column position, and then the detection unit 4 is closely attached to the glue applying position to perform ultrasonic detection on the steel structure column:

[0042] The detection unit 4 includes an electric cylinder 401, a detection seat 402, an ultrasonic probe 403, an elastic pressure member 404, a positioning camera 405 and a control unit 406. The detection seat 402 is slidably arranged inside the mounting frame 1, and one side of the detection seat 402 is fixedly connected to the output end of the electric cylinder 401, the ultrasonic probe 403 is slidably connected to the inside of the detection seat 402, the elastic pressure member 404 is arranged between the detection seat 402 and the ultrasonic probe 403, the positioning camera 405 is fixedly connected to the detection seat 402, and the positioning camera 405 is arranged at a position close to the cleaning unit 3, the control unit 406 is fixedly connected to one side of the mounting frame 1, the control unit 406 is electrically connected to the electric cylinder 401 and the ultrasonic probe 403, the control unit 406 is connected to the mains, and a processor is integrated inside the control unit 406.

[0043] Specifically, when stress detection of a steel structure column is required, the steel structure column is placed inside the driving unit 2, and the driving unit 2 is controlled by the control unit 406 to transport the steel structure column in a horizontal direction. The control unit 406 controls the cleaning unit 3 to operate, so that the steel structure column first passes through the lower end of the cleaning unit 3 for friction cleaning of the detection surface, thereby ensuring the cleanliness of the detection position of the steel structure column and preventing the ultrasonic probe 403 from contacting the steel structure column so that foreign matter affects the detection accuracy of the ultrasonic probe 403;

[0044] After the steel structure column is cleaned, it is driven by the driving unit 2 to enter the lower end of the detection unit 4. The positioning camera 405 sends the position of the steel structure column to the control unit 406. The control unit 406 controls the output end of the electric cylinder 401 to drive the detection seat 402 to move toward the steel structure column, so that the glue adding unit 5 first contacts the steel structure column, and the internal nozzle 506 of the glue adding unit 5 is automatically opened.

[0045] As the detection seat 402 continues to move toward the steel structure column, the nozzle 506 contacts the outer edge of the steel structure column, and the control unit 406 controls the glue adding unit 5 to add ultrasonic coupling agent to the outer edge of the steel structure column, thereby completing the application and addition of ultrasonic coupling agent to the outer edge of the steel structure column. The ultrasonic coupling agent can isolate the air and reduce the friction between the contact surface of the ultrasonic probe 403 and the steel structure column, thereby reducing the energy loss of the ultrasonic probe 403 and facilitating signal transmission.

[0046] As the detection seat 402 continues to move toward the steel structure column, the detection seat 402 drives the ultrasonic probe 403 to contact the steel structure column coated with the ultrasonic coupling agent, and the elastic pressure member 404 is squeezed by the detection seat 402. The elastic pressure member 404 applies elastic pressure to the ultrasonic probe 403, thereby ensuring the contact tightness between the ultrasonic probe 403 and the steel structure column, thereby improving the detection accuracy of the ultrasonic probe 403 on the steel structure column.

[0047] The steel structure column is detected by the ultrasonic probe 403, and the detected data is sent to the control unit 406 for analysis and processing, thus completing the detection process of the steel structure column.

[0048] See also Figures 1 to 4As shown, the driving unit 2 includes a driving motor 201, a driving column 202, a transmission belt 203, an extrusion plate 204, an elastic fixing member 205 and an extrusion column 206. The driving motor 201 is fixedly connected to the inside of the mounting frame 1, and the driving motor 201 is electrically connected to the control unit 406. There are two driving columns 202, and the two driving columns 202 are rotatably arranged inside the two ends of the mounting frame 1, one of the driving columns 202 is fixedly connected to the output end of the driving motor 201, and the inner side of the transmission belt 203 contacts the outer edge of the driving column 202. There are two extrusion plates 204, and the two extrusion plates 204 are slidably connected to the inside of the two ends of the mounting frame 1, respectively. The elastic fixing member 205 is arranged between the mounting frame 1 and the extrusion plate 204, and the extrusion column 206 is rotatably arranged at the lower end of the extrusion plate 204, and the extrusion column 206 corresponds vertically to the driving column 202.

[0049] The output end of the driving motor 201 drives the transmission belt 203 to transmit power to the driving column 202, so that the driving column 202 rotates;

[0050] When the steel structure column is between the driving column 202 and the extrusion column 206, the elastic pressure of the elastic fixing part 205 is applied to the extrusion plate 204, so that the extrusion plate 204 drives the extrusion column 206 to apply an extrusion force in the direction of the driving column 202. With this extrusion force, the steel structure column is fixed between the driving column 202 and the extrusion column 206, ensuring that the driving column 202 drives the steel structure column.

[0051] See also Figure 4 As shown, a positioning groove 2021 is provided on the outer edge of the driving column 202, and the positioning groove 2021 cooperates with the outer edge of the steel structure column. The positioning groove 2021 provides a positioning function for the placement of the steel structure column, so that the steel structure column is always in the positioning groove 2021, avoiding the steel structure column from being displaced during transportation.

[0052] See also Figures 1 to 4 As shown, the outer edges of the positioning groove 2021 and the extrusion column 206 are both covered with rubber sleeves, which increase the friction between the positioning groove 2021, the extrusion column 206 and the steel structure column, thereby improving the transmission efficiency of the steel structure column and ensuring the stability of the steel structure column during transportation.

[0053] See also Figure 1 , Figure 2 as well as Figures 5 to 7As shown, the cleaning part 3 includes a rotating motor 301, a rotating shaft 302, a transmission belt 303, a cleaning seat 304 and a cleaning roller 305. The rotating motor 301 is fixedly connected to the inside of the mounting frame 1, the rotating motor 301 is electrically connected to the control unit 406, the rotating shaft 302 is rotatably arranged inside the mounting frame 1, the transmission belt 303 is arranged at the output end of the rotating motor 301 and the outer edge of the rotating shaft 302, the cleaning seat 304 is assembled inside the mounting frame 1, and the cleaning roller 305 is rotatably arranged inside the cleaning seat 304;

[0054] The output end of the rotating motor 301 transmits power to the rotating shaft 302 through the transmission belt 303, so that the rotating shaft 302 rotates, and the rotation of the rotating shaft 302 drives the cleaning roller 305 inside the cleaning seat 304 to rotate. The rotation of the cleaning roller 305 rubs against the outer edge of the steel structure column, thereby removing impurities at the detection position of the outer edge of the steel structure column, ensuring the cleanliness of the detection position of the steel structure column;

[0055] When the cleaning roller 305 needs to be replaced, the bolts that fix the cleaning seat 304 to the mounting frame 1 need to be unscrewed, and then the cleaning seat 304 together with the cleaning roller 305 are pulled out of the mounting frame 1, and the cleaning seat 304 and the cleaning roller 305 can be easily disassembled;

[0056] Then the new cleaning seat 304 and cleaning roller 305 are slidably inserted into the interior of the mounting frame 1, and then the cleaning seat 304 is fixed to the interior of the mounting frame 1 by bolts, so that the cleaning seat 304 and the cleaning roller 305 can be conveniently replaced.

[0057] See also Figure 5 and Figure 6 As shown, a spiral cleaning brush is provided on the outer edge of the cleaning roller 305, and the spiral cleaning brush can brush the debris on the outer edge of the steel structure column to the side, so as to prevent the debris from being washed and attached to the outer edge of the steel structure column.

[0058] See also Figures 8 to 10As shown, the glue adding part 5 includes a sliding seat 501, an elastic extrusion member 502, a limit seat 503, an elastic reset member 504, a rotating wheel 505, a nozzle 506, a connecting pipe 507, an infusion pump 508 and a liquid storage tank 509. The sliding seat 501 is slidably arranged inside the other side of the detection seat 402, the elastic extrusion member 502 is arranged between the sliding seat 501 and the detection seat 402, the limit seat 503 is slidably arranged inside the sliding seat 501, the elastic reset member 504 is arranged between the limit seat 503 and the sliding seat 501, the rotating wheel 505 is rotatably arranged at the lower end of the limit seat 503, and the rotating wheel 5 05 corresponds vertically to the steel structure column, the nozzle 506 is fixedly connected to the lower end of the detection seat 402, and the nozzle 506 also corresponds vertically to the steel structure column, one end of the connecting pipe 507 is connected to the nozzle 506, and the connecting pipe 507 is bent and arranged inside the limit seat 503, the infusion pump 508 is fixedly arranged inside the mounting frame 1, the output end of the infusion pump 508 is fixedly connected to the other end of the connecting pipe 507, the infusion pump 508 is electrically connected to the control unit 406, the liquid storage tank 509 is fixedly arranged inside the mounting frame 1, and the lower end of the liquid storage tank 509 is connected to the input end of the infusion pump 508;

[0059] When the detection seat 402 moves toward the direction of the steel structure column, the sliding seat 501 is driven to move together, and the movement of the sliding seat 501 drives the limiting seat 503 to move until the rotating wheel 505 contacts the outer edge of the steel structure column, and then the limiting seat 503 shrinks into the interior of the sliding seat 501 and squeezes the elastic reset member 504. As the limiting seat 503 shrinks and enters the interior of the sliding seat 501, the limiting seat 503 gradually loses the squeezing of the connecting tube 507, so that the connecting tube 507 gradually opens, and the connecting tube 507 is automatically opened;

[0060] When the detection seat 402 continues to move toward the steel structure column, it drives the sliding seat 501 to move together, so that the nozzle 506 at the sliding seat 501 contacts the steel structure column. As the detection seat 402 continues to move, the elastic extrusion member 502 is squeezed, so that the elastic pressure of the elastic extrusion member 502 is applied to the sliding seat 501, so that the nozzle 506 at the sliding seat 501 can fit the steel structure column more closely.

[0061] When the nozzle 506 is attached to the steel structure column, the ultrasonic coupling agent in the liquid storage tank 509 is pumped into the interior of the connecting pipe 507 by the infusion pump 508, and then sprayed out from the nozzle 506 and attached to the outer edge of the steel structure column;

[0062] At this point, the automatic opening of the connecting tube 507 and the ejection of the ultrasonic coupling agent are achieved.

[0063] See also Fig. 9As shown, the rotating wheel 505, the nozzle 506 and the ultrasonic probe 403 are arranged in a step-like manner when they are not in contact with the steel structure column. The step-like arrangement of the three enables the rotating wheel 505, the nozzle 506 and the ultrasonic probe 403 to contact the steel structure column in sequence, and the rotating wheel 505, the nozzle 506 and the ultrasonic probe 403 are arranged horizontally at the steel structure column. The limit of the rotating wheel 505 causes the limit seat 503 to gradually shrink into the interior of the sliding seat 501, so that the connecting pipe 507 loses the squeezing of the limit seat 503 and automatically opens;

[0064] After the connection pipe 507 is opened, the ultrasonic coupling agent inside can be sprayed onto the steel structure column when the nozzle 506 contacts the steel structure column;

[0065] After the ultrasonic coupling agent is sprayed, the ultrasonic probe 403 can later contact the area where the ultrasonic coupling agent is applied on the steel structure column;

[0066] At this point, the step-by-step linkage of the rotating wheel 505, the nozzle 506 and the ultrasonic probe 403 is achieved.

[0067] See also Fig.10 As shown, a guide groove is provided inside the sliding seat 501, and the inside of the guide groove is slidably connected to the two sides of the limit seat 503. The guide groove provides limitation and guidance for the sliding of the limit seat 503, thereby ensuring the stability of the limit seat 503 when sliding.

[0068] See also Figures 8 to 10 As shown, a squeezing block 5031 is disposed inside the limiting seat 503, and the outer edge of the squeezing block 5031 matches with the bending part of the connecting tube 507. In the initial state, the limiting seat 503 is squeezed by the elastic reset member 504 so that the squeezing block 5031 squeezes the connecting tube 507, so that the connecting tube 507 is deformed and the connecting tube 507 is sealed, so as to prevent the ultrasonic coupling agent inside the connecting tube 507 from flowing out when it is not needed, causing waste.

[0069] When the limit seat 503 extends out of the sliding seat 501, the elastic extrusion of the elastic return member 504 is applied to the limit seat 503, so that the limit seat 503 drives the extrusion block 5031 to apply pressure to the connecting tube 507, causing the connecting tube 507 to deform between the sliding seat 501 and the limit seat 503, thereby causing the connecting tube 507 to be blocked and closed.

[0070] The working principle of the present invention is as follows: when stress detection of a steel structure column is required, the steel structure column is placed inside the driving unit 2, and the driving unit 2 is controlled by the control unit 406 to transport the steel structure column in a horizontal direction. The control unit 406 controls the operation of the cleaning unit 3, so that the steel structure column first passes through the lower end of the cleaning unit 3 for friction cleaning of the detection surface, thereby ensuring the cleanliness of the detection position of the steel structure column and preventing the ultrasonic probe 403 from contacting the steel structure column so that foreign matter affects the detection accuracy of the ultrasonic probe 403;

[0071] After the steel structure column is cleaned, it is driven by the driving unit 2 to enter the lower end of the detection unit 4. The positioning camera 405 sends the position of the steel structure column to the control unit 406. The control unit 406 controls the output end of the electric cylinder 401 to drive the detection seat 402 to move toward the steel structure column, so that the glue adding unit 5 first contacts the steel structure column, and the internal nozzle 506 of the glue adding unit 5 is automatically opened.

[0072] As the detection seat 402 continues to move toward the steel structure column, the nozzle 506 contacts the outer edge of the steel structure column, and the control unit 406 controls the glue adding unit 5 to add ultrasonic coupling agent to the outer edge of the steel structure column, thereby completing the application and addition of ultrasonic coupling agent to the outer edge of the steel structure column. The ultrasonic coupling agent can isolate the air and reduce the friction between the contact surface of the ultrasonic probe 403 and the steel structure column, thereby reducing the energy loss of the ultrasonic probe 403 and facilitating signal transmission.

[0073] As the detection seat 402 continues to move toward the steel structure column, the detection seat 402 drives the ultrasonic probe 403 to contact the steel structure column coated with the ultrasonic coupling agent, and the elastic pressure member 404 is squeezed by the detection seat 402. The elastic pressure member 404 applies elastic pressure to the ultrasonic probe 403, thereby ensuring the contact tightness between the ultrasonic probe 403 and the steel structure column, thereby improving the detection accuracy of the ultrasonic probe 403 on the steel structure column.

[0074] The steel structure column is detected by the ultrasonic probe 403, and the detected data is sent to the control unit 406 for analysis and processing, thus completing the detection process of the steel structure column.

[0075] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A method for detecting residual stress of a steel structure column after straightening, characterized in that: It comprises a mounting frame (1), the upper part of which is provided with a driving unit (2), and the driving unit (2) is capable of conveying and adjusting a steel structure column to be inspected; A cleaning part (3) is provided inside the mounting frame (1), and the cleaning part (3) cleans the detection position by means of rotational friction with the outer edge of the steel structure column; The mounting frame (1) is further provided with a detection unit (4) inside, and a glue adding unit (5) is provided inside the detection unit (4). When the detection unit (4) moves toward the steel structure column, the glue adding unit (5) can first apply glue to the cleaned steel structure column position, and then the detection unit (4) is closely attached to the glue applying position to perform ultrasonic detection on the steel structure column: The detection unit (4) comprises an electric cylinder (401), a detection seat (402), an ultrasonic probe (403), an elastic pressure member (404), a positioning camera (405) and a control unit (406); the detection seat (402) is slidably arranged inside the mounting frame (1), and one side of the detection seat (402) is fixedly connected to the output end of the electric cylinder (401); the ultrasonic probe (403) is slidably connected to the inside of the detection seat (402); the elastic pressure member (404) is arranged between the detection seat (402) and the ultrasonic probe (403); the positioning camera (405) is fixedly connected to the detection seat (402), and the positioning camera (405) is arranged at a position close to the cleaning unit (3); the control unit (406) is fixedly connected to one side of the mounting frame (1), and the control unit (406) is electrically connected to the electric cylinder (401) and the ultrasonic probe (403).

2. The residual stress detection method of a steel structure column after straightening according to claim 1 is characterized in that: The driving part (2) comprises a driving motor (201), a driving column (202), a transmission belt (203), an extrusion plate (204), an elastic fixing member (205) and an extrusion column (206); the driving motor (201) is fixedly connected to the inside of the mounting frame (1); two driving columns (202) are provided, and the two driving columns (202) are rotatably arranged inside the two ends of the mounting frame (1), and one of the driving columns (202) is rotatably arranged inside the two ends of the mounting frame (1); The output end is fixedly connected, the inner side of the transmission belt (203) contacts the outer edge of the driving column (202), two extrusion plates (204) are provided, and the two extrusion plates (204) are respectively slidably connected to the inside of the two ends of the mounting frame (1), the elastic fixing member (205) is arranged between the mounting frame (1) and the extrusion plate (204), and the extrusion column (206) is rotatably arranged at the lower end of the extrusion plate (204), and the extrusion column (206) corresponds vertically to the driving column (202).

3. The residual stress detection method of a steel structure column after straightening according to claim 2 is characterized in that: The outer edge of the driving column (202) is provided with a positioning groove (2021), and the positioning groove (2021) matches the outer edge of the steel structure column.

4. The residual stress detection method of a steel structure column after straightening according to claim 3 is characterized in that: The outer edges of the positioning groove (2021) and the extrusion column (206) are both covered with rubber sleeves.

5. The residual stress detection method of a straightened steel structure column according to claim 1, characterized in that: The cleaning portion (3) comprises a rotating motor (301), a rotating shaft (302), a transmission belt (303), a cleaning seat (304) and a cleaning roller (305); the rotating motor (301) is fixedly connected to the inside of the mounting frame (1); the rotating shaft (302) is rotatably arranged inside the mounting frame (1); the transmission belt (303) is arranged at the output end of the rotating motor (301) and the outer edge of the rotating shaft (302); the cleaning seat (304) is assembled inside the mounting frame (1); and the cleaning roller (305) is rotatably arranged inside the cleaning seat (304).

6. The residual stress detection method of a steel structure column after straightening according to claim 5, characterized in that: The outer edge of the cleaning roller (305) is provided with a spiral cleaning brush.

7. The residual stress detection method of a straightened steel structure column according to claim 1, characterized in that: The glue adding part (5) comprises a sliding seat (501), an elastic extrusion member (502), a limiting seat (503), an elastic reset member (504), a rotating wheel (505), a nozzle (506), a connecting pipe (507), an infusion pump (508) and a liquid storage tank (509); the sliding seat (501) is slidably arranged inside the other side of the detection seat (402); the elastic extrusion member (502) is arranged between the sliding seat (501) and the detection seat (402); the limiting seat (503) is slidably arranged inside the sliding seat (501); the elastic reset member (504) is arranged between the limiting seat (503) and the sliding seat (501); the rotating wheel (505) is rotatably arranged on the limiting seat (501); 3), and the rotating wheel (505) corresponds vertically to the steel structure column, the nozzle (506) is fixedly connected to the lower end of the detection seat (402), and the nozzle (506) also corresponds vertically to the steel structure column, one end of the connecting pipe (507) is connected to the nozzle (506), and the connecting pipe (507) is bent and arranged inside the limit seat (503), the infusion pump (508) is fixedly arranged inside the mounting frame (1), the output end of the infusion pump (508) is fixedly connected to the other end of the connecting pipe (507), the liquid storage tank (509) is fixedly arranged inside the mounting frame (1), and the lower end of the liquid storage tank (509) is connected to the input end of the infusion pump (508).

8. The method for detecting residual stress of a straightened steel structure column according to claim 7, characterized in that: The rotating wheel (505), the nozzle (506) and the ultrasonic probe (403) are arranged in a stepped manner when not in contact with the steel structure column.

9. The method for detecting residual stress of a straightened steel structure column according to claim 7, characterized in that: The sliding seat (501) is provided with a guide groove inside, and the inside of the guide groove is slidably connected to the two sides of the limiting seat (503).

10. The residual stress detection method of a straightened steel structure column according to claim 7, characterized in that: An extrusion block (5031) is disposed inside the limiting seat (503), and the outer edge of the extrusion block (5031) matches the bending part of the connecting pipe (507).

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