Deformation detection device and method for steel structure

Abstract

The invention relates to the technical field of detection equipment, in particular to a deformation detection device and method for a steel structure, and the device is movably arranged on a workbench, is movably arranged at the tops of sliding rails, is arranged on the corresponding sliding rails in pairs, is movably arranged on the workbench, and corresponds to four placement plates respectively. The positioning and clamping unit is arranged on the workbench and used for driving the positioning and clamping unit to clamp the steel on the placing plate during detection, the steel to be detected can be stably positioned and clamped on the placing plate through the designed positioning and clamping unit and clamping plate, and the pneumatic clamping technology is adopted by the positioning and clamping unit, so that the clamping stability and effect are remarkably improved, and the clamping efficiency is improved. In the steel mounting and dismounting process, quicker operation is achieved, the detection process is greatly accelerated, the overall detection efficiency is effectively improved, high efficiency and accuracy of steel quality detection operation are ensured, and the system can flexibly adapt to steel of different lengths through cooperation of the adjusting piece and the conveying piece.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and particularly to a deformation detection device and method for steel structures. Background Art

[0002] Due to its advantages such as high strength, light weight, and convenient construction, steel structures are widely used in engineering fields such as bridges, high-rise buildings, industrial plants, stadiums, and offshore platforms. However, during long-term service, steel structures are prone to structural damages such as deformation, displacement, and cracks under the influence of external loads, environmental corrosion, temperature changes, and material fatigue. If not detected and repaired in time, it may lead to local instability or even overall collapse, threatening life and property safety. Therefore, the steel structure deformation detection device has become one of the core technical means to ensure project safety.

[0003] Currently, the devices applied to the deformation detection of steel structures often rely on clamping components such as bolts to fix the steel for deformation analysis during actual operation. This fixing method significantly increases the complexity of installation and disassembly and is not convenient and efficient. More importantly, when adjusting the detection position or range, traditional devices often only support limited adjustment of the steel placed on top of them, lacking flexibility and precision. This limitation greatly restricts the meticulousness of the detection work and makes it extremely difficult to comprehensively and accurately evaluate the deformation of steel structures. For this reason, we propose a deformation detection device and method for steel structures. Summary of the Invention

[0004] One technical problem to be solved by this application is: how to design a deformation detection device and method for steel structures with efficient clamping and adjustment.

[0005] To solve the above technical problems, the embodiments of this application provide a deformation detection device and method for steel structures, including a workbench and a detection head, and further including:

[0006] Sliding rails, which are movably arranged on the workbench and there are two of them;

[0007] Placement plates, which are movably arranged on the top of the sliding rails, there are four of them, and two of them are arranged on the corresponding sliding rails in pairs;

[0008] Clamping plates, which are movably arranged on the workbench, there are four of them, and they respectively correspond to the four placement plates;

[0009] A positioning and clamping unit, which is arranged on the workbench and is used to drive the positioning and clamping unit to clamp the steel on the placement plate during detection;

[0010] Adjusting members, which are arranged on the workbench and are used to adjust and detect steel with different lengths.

[0011] In some embodiments, the positioning and clamping unit includes a fixing ring arranged on the side of the placing plate. An air cylinder is arranged on the inner wall of the fixing ring. A cross bar is movably arranged inside the air cylinder. A straight plate is arranged at the top of the cross bar, and the straight plate is arranged between two clamping plates.

[0012] In some embodiments, the cross bar penetrates through the top of the air cylinder and is provided with an upper piston plate. The upper piston plate is movably arranged on the inner wall of the air cylinder and closely fits the inner wall of the air cylinder. A lower piston plate is movably arranged on the inner wall of the air cylinder. A guide rod is arranged at the bottom end of the lower piston plate. The bottom end of the guide rod penetrates through the inner wall of the air cylinder. A tension spring is sleeved on the outer surface of the guide rod where it penetrates through the inner wall of the air cylinder, and the top end of the tension spring is arranged at the bottom end of the air cylinder.

[0013] In some embodiments, a sliding rod is rotatably arranged at the bottom end of the guide rod. An inclined groove is formed on the side of the slide rail close to the sliding rod, and a limiting groove is also formed on the side of the slide rail. The inclined groove communicates with the limiting groove, and the sliding rod is movably arranged on the inner walls of the inclined groove and the limiting groove.

[0014] In some embodiments, a circular groove is formed at the bottom of the clamping plate. A movable rod is movably arranged on the inner wall of the circular groove. A spring is sleeved on the outer surface of the movable rod. The top end of the spring is arranged on the inner wall of the circular groove. A ball is movably embedded inside the bottom end of the movable rod. A transmission member for adjusting the movement of the placing plate is arranged at the slide rail.

[0015] In some embodiments, the transmission member includes four connecting blocks arranged at the bottoms of the four placing plates. Threaded rods are arranged inside the inner walls of the four connecting blocks in pairs. The opposite ends of the two threaded rods are respectively rotatably arranged on the inner walls of the corresponding slide rails. A servo motor is arranged on the side of one of the slide rails, and the output end of the servo motor is arranged on the end face of the adjacent threaded rod.

[0016] In some embodiments, guide grooves are formed on the adjacent sides of the two slide rails. A guide rod is movably arranged on the inner walls of the two guide grooves. A spline sleeve is arranged on one of the threaded rods close to the servo motor, and a spline shaft is arranged on the end face of the other threaded rod far from the servo motor. The spline shaft is movably arranged inside the inner wall of the spline sleeve.

[0017] In some embodiments, the adjusting member includes a moving plate arranged at the bottom of the slide rail. A double-headed screw is threadedly arranged inside the inner wall of the moving plate. A straight groove is formed at the top of the workbench. The two ends of the double-headed screw are respectively rotatably arranged on both sides of the inner wall of the straight groove. One end of the double-headed screw penetrates through the inner wall of the straight groove and is provided with a hand wheel.

[0018] In some embodiments, sliders are provided on both sides of the top of the slide rail, and two chutes are formed at the bottom of the placement plate, and the two sliders are respectively movably arranged on the inner walls of the corresponding chutes.

[0019] In some embodiments, a detection method for a deformation detection device and method for steel structures specifically includes the following steps:

[0020] S1. First, place the steel to be detected on the placement plate, and then start the servo motor to cause the two placement plates to move relative to each other;

[0021] S2. Due to the existence of the limit groove and the air cylinder, during the movement of the two placement plates, the clamping plate will move downward until the steel to be detected is clamped and fixed;

[0022] S3. After the steel to be detected is fixed, start the detection head, and scan and detect the steel through an external detection device to complete the deformation detection of the steel structure

[0023] The present invention has at least the following beneficial effects:

[0024] 1. Through the designed positioning and clamping unit, the clamping plate can stably position and clamp the steel to be detected on the placement plate. This unit adopts pneumatic clamping technology, which not only significantly improves the clamping stability and effect, but also realizes a more rapid operation during the installation and disassembly of the steel, greatly accelerating the detection process, effectively improving the overall detection efficiency, and ensuring the high efficiency and accuracy of the steel quality detection operation;

[0025] 2. Through the coordinated cooperation of the adjusting member and the transmission member, the system can flexibly adapt to steel of different lengths to achieve precise detection. This not only optimizes the detection process, but also significantly improves the detection efficiency and quality, ensuring a comprehensive and accurate evaluation of various types of steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structures of the slide rail, positioning and detection unit, adjusting member and transmission member of the present invention;

[0028] Figure 3 It is a schematic cross-sectional structure diagram of the slide rail of the present invention;

[0029] Figure 4 It is a partial structure schematic diagram of the slide rail, positioning and clamping unit and transmission member of the present invention;

[0030] Figure 5 It is a schematic diagram of the structures of the air cylinder, straight plate, cross bar and fixing ring of the present invention;

[0031] Figure 6 Schematic cross-sectional structure diagram of the air cylinder and clamping plate of the present invention;

[0032] Figure 7 is Figure 6 Enlarged structure diagram at A.

[0033] In the figure: 1, workbench; 2, detection head; 3, slide rail; 4, placement plate; 5, clamping plate; 6, positioning and clamping unit; 61, air cylinder; 62, straight plate; 63, inclined groove; 64, limiting groove; 65, cross bar; 66, fixing ring; 67, slide bar; 68, tension spring; 69, upper piston plate; 610, lower piston plate; 611, guide rod; 612, circular groove; 613, spring; 614, movable rod; 615, ball; 7, adjusting member; 71, straight groove; 72, hand wheel; 73, double-headed screw; 74, moving plate; 8, transmission member; 81, threaded rod; 82, servo motor; 83, connecting block; 84, guide groove; 85, guide rod; 86, spline shaft; 87, spline sleeve; 9, slider; 10, chute. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figures 1-7 , the present invention provides a technical solution: A deformation detection device and method for steel structures, including a workbench 1 and a detection head 2, and further including:

[0036] Slide rails 3, which are movably arranged on the workbench 1, there are two of them, and the adjacent end faces of the two slide rails 3 are both smoothly arranged, thereby increasing the aesthetics;

[0037] Placement plates 4, which are movably arranged on the tops of the slide rails 3, there are four of them, and they are arranged in pairs on the corresponding slide rails 3. Grooves are opened between two pairs of placement plates 4, and this groove can provide a certain space when the steel is bent, avoiding affecting the steel detection due to the problem of the placement plate 4;

[0038] Clamping plates 5, which are movably arranged on the workbench 1, there are four of them, and they respectively correspond to the four placement plates 4. Anti-slip grooves 10 are opened on the clamping plates 5 and the corresponding placements to prevent the steel from sliding and affecting the detection effect;

[0039] The positioning and clamping unit 6 is arranged on the workbench 1 and is used to drive the positioning and clamping unit 6 to clamp the steel on the placement plate 4 during detection.

[0040] The adjusting part 7 is arranged on the workbench 1 and is used to adjust and detect steel materials of different lengths.

[0041] The positioning and clamping unit 6 includes a fixed ring 66 arranged on the side of the placement plate 4. An air cylinder 61 is arranged on the inner wall of the fixed ring 66. A cross bar 65 is movably arranged inside the air cylinder 61. A straight plate 62 is arranged at the top of the cross bar 65. The straight plate 62 is arranged between two clamping plates 5. The arrangement of the cross bar 65 can prevent it from driving the straight plate 62 to rotate, avoiding the offset of the clamping plates 5 on both sides of the straight plate 62 and making the clamping unable to accurately position to the top of the steel.

[0042] The cross bar 65 penetrates through the top of the air cylinder 61 and is provided with an upper piston plate 69. The upper piston plate 69 is movably arranged on the inner wall of the air cylinder 61 and closely fits the inner wall of the air cylinder 61. A lower piston plate 610 is movably arranged on the inner wall of the air cylinder 61. A guide rod 611 is arranged at the bottom end of the lower piston plate 610. The bottom end of the guide rod 611 penetrates through the inner wall of the air cylinder 61. A tension spring 68 is sleeved on the outer surface of the guide rod 611 penetrating through the inner wall of the air cylinder 61. The top end of the tension spring 68 is arranged at the bottom end of the air cylinder 61. The spring 613 can drive the guide rod 611 to reset after use. The upper piston plate 69 and the lower piston plate 610 are driven by gas, so there is a certain compression space to avoid the steel being directly broken due to excessive pressure during detection.

[0043] A slide bar 67 is rotatably arranged at the bottom end of the guide rod 611. An inclined groove 63 is opened on the side of the slide rail 3 close to the slide bar 67. A limiting groove 64 is also opened on the side of the slide rail 3. The inclined groove 63 is communicated with the limiting groove 64. Then the slide bar 67 is movably arranged on the inner walls of the inclined groove 63 and the limiting groove 64. When the slide bar 67 is in the limiting groove 64, it can squeeze the guide rod 611, so that the clamping plate 5 moves away from the steel. When the slide bar 67 moves into the inclined groove 63, it will drive the lower piston plate 610 to pull the upper piston plate 69 to move, so as to clamp the steel.

[0044] A circular groove 612 is opened at the bottom of the clamping plate 5. A movable rod 614 is movably arranged on the inner wall of the circular groove 612. A spring 613 is sleeved on the outer surface of the movable rod 614. The top end of the spring 613 is arranged on the inner wall of the circular groove 612. A ball 615 is movably embedded in the bottom end of the movable rod 614. A transmission part 8 for adjusting the movement of the placement plate 4 is arranged at the slide rail 3. The setting of the ball 615 is to cooperate with the clamping plate 5. Before the clamping plate 5 moves to the top of the steel, its movement track is inclined, so as to reduce the friction of the clamping plate 5 directly on the clamping plate 5.

[0045] The transmission member 8 includes four connecting blocks 83 provided at the bottom of the four placing plates 4. Threaded rods 81 are provided on the inner walls of the four connecting blocks 83 in pairs. The ends of the two threaded rods 81 away from each other are rotatably provided on the inner walls of the corresponding sliding rails 3. A servo motor 82 is provided on the side of one of the sliding rails 3. The output end of the servo motor 82 is provided on the end face of the adjacent threaded rod 81. By the forward and reverse rotation and precise positioning of the servo motor 82, the connecting block 83 can be driven to move, thereby driving the corresponding placing plate 4 to move.

[0046] Guide grooves 84 are provided on the adjacent sides of the two sliding rails 3. A guide rod 85 is movably provided on the inner walls of the two guide grooves 84. A spline sleeve 87 is provided on one of the threaded rods 81 close to the servo motor 82. A spline shaft 86 is provided on the end face of the other threaded rod 81 away from the servo motor 82. The spline shaft 86 is movably provided on the inner wall of the spline sleeve 87. The setting of the spline sleeve 87 and the spline shaft 86 can drive during rotation and does not affect the use during adjustment. At the same time, the patterns of the two threaded rods 81 are opposite, so that the effect of relative movement can be achieved.

[0047] The adjusting member 7 includes a moving plate 74 provided at the bottom of the sliding rail 3. A double-headed screw rod 73 is provided on the inner wall of the moving plate 74. A straight groove 71 is provided on the top of the workbench 1. The two ends of the double-headed screw rod 73 are respectively rotatably provided on both sides of the inner wall of the straight groove 71. One end of the double-headed screw rod 73 penetrates through the inner wall of the straight groove 71 and is provided with a hand wheel 72. By rotating the hand wheel 72, the double-headed screw rod 73 can be driven to rotate, so that the moving plate 74 can slide in the chute 10, thereby performing a large adjustment.

[0048] Sliders 9 are provided on both sides of the top of the sliding rail 3, and two chutes 10 are provided at the bottom of the placing plate 4. The two sliders 9 are respectively movably provided on the inner walls of the corresponding chutes 10. The chutes 10 provided at the bottom of the placing plate 4 cooperate with the placing plate 4 to slide on the outer surface of the slider 9, and the shape of the slider 9 is semicircular.

[0049] When the above technical solution is used to detect steel, it specifically includes the following steps:

[0050] S1. First, place the steel to be detected on the placing plate 4, and then start the servo motor 82 to cause the two placing plates 4 to move relative to each other;

[0051] S2. Due to the existence of the limiting groove (64) and the air cylinder 61, during the movement of the two placing plates 4, the clamping plate 5 will move downward until the steel to be detected is clamped and fixed;

[0052] S3. After the steel to be detected is fixed, start the detection head 2, and scan and detect the steel through an external detection device to complete the detection of the deformation of the steel structure.

[0053] The specific working principle of this technical solution is as follows: When using this device, first place the steel to be detected on the placement plate 4. At this time, the servo motor 82 can be started. The output end of the servo motor 82 will drive the threaded rod 81 to rotate, which can drive the connection block 83 arranged on the outer surface of the threaded rod 81 to move. The connection block 83 will drive the placement plate 4 to move. The placement plate 4 will move under the bottom of the steel. At this time, the placement plate 4 will drive the fixed ring 66 to move. The fixed ring 66 will drive the air cylinder 61 to move, and the air cylinder 61 will drive the guide rod 611 arranged inside to move. Thus, the guide rod 611 drives the slide rod 67 to move. The slide rod 67 slides from the inside of the limit groove 64 to the inner wall of the inclined groove 63. At this time, the slide rod 67 will drive the guide rod 611 to descend. The guide rod 611 will drive the lower piston plate 610 at the top to move, so that the lower piston plate 610 drives the upper piston plate 69 to descend. The upper piston plate 69 will drive the slide rod 67 to move, and the slide rod 67 will drive the straight plate 62 to move. The straight plate 62 will drive the clamping plates 5 on both sides to descend. Before contact, the balls 615 inside the clamping plate 5 will first contact the steel. When the clamping plate 5 slowly descends, the balls 615 will squeeze the movable rod 614. Through the movable rod 614, the spring 613 will be squeezed, so that the balls 615 and the movable rod 614 enter the inner wall of the circular groove 612. At this time, the clamping plate 5 will complete positioning and clamping the steel on the top of the placement plate 4. Thus, the detection is completed through the placement plate 4. Finally, reverse the servo motor 82, and the clamping plate 5 will loosen, and the steel will be taken down from the top of the placement plate 4. At this time, the balls 615 will reset under the action of the spring 613, and the guide rod 611 will reset under the action of the tension spring 68, thus driving the slide rod 67 to move from the inclined groove 63 into the limit groove 64;

[0054] When the slide rail 3 needs to be adjusted, only the handwheel 72 needs to be rotated at this time, so that the handwheel 72 drives the double-headed screw rod 73 to rotate. The double-headed screw rod 73 will drive the moving plate 74 to move on the inner wall of the straight groove 71, so that the slide rail 3 driven by the moving plate 74 slides on the top of the straight groove 71 to cope with steel of different lengths. At this time, the guide rod 85 will slide inside the guide groove 84 and continue to serve as a guiding function. The spline shaft 86 will slide on the inner wall of the spline sleeve 87, but will not completely fall off. Due to the special settings of the spline sleeve 87 and the spline shaft 86, the threaded rod 81 adjacent to the servo motor 82 still drives another threaded rod 81 to rotate through the spline sleeve 87 and the spline shaft 86.

[0055] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A deformation detection device for steel structures, comprising a workbench (1) and a detection head (2), characterized in that: It also includes: Sliding rails (3), which are movably arranged on the workbench (1) and there are two of them; Placement plates (4), which are movably arranged on the tops of the sliding rails (3), there are four of them, and two are arranged on the corresponding sliding rails (3) in pairs; Clamping plates (5), which are movably arranged on the workbench (1), there are four of them, and they respectively correspond to the four placement plates (4); Positioning and clamping unit (6), the positioning and clamping unit (6) is arranged on the workbench (1), and is used to drive the positioning and clamping unit (6) to clamp the steel on the placement plate (4) during detection; Adjusting member (7), the adjusting member (7) is arranged on the workbench (1) and is used to adjust the detection of steel with different lengths.

2. The deformation detection device for steel structures according to claim 1, characterized in that: The positioning and clamping unit (6) includes a fixed ring (66) arranged on the side of the placement plate (4), an air cylinder (61) is arranged on the inner wall of the fixed ring (66), a cross bar (65) is movably arranged inside the air cylinder (61), a straight plate (62) is arranged at the top of the cross bar (65), and the straight plate (62) is arranged between the two clamping plates (5).

3. The deformation detection device for steel structures according to claim 2, wherein: The cross bar (65) penetrates through the top of the air cylinder (61) and is provided with an upper piston plate (69), the upper piston plate (69) is movably arranged on the inner wall of the air cylinder (61) and closely fits the inner wall of the air cylinder (61), a lower piston plate (610) is movably arranged on the inner wall of the air cylinder (61), a guide rod (611) is arranged at the bottom end of the lower piston plate (610), the bottom end of the guide rod (611) penetrates through the inner wall of the air cylinder (61), a tension spring (68) is sleeved on the outer surface of the guide rod (611) penetrating through the inner wall of the air cylinder (61), and the top end of the tension spring (68) is arranged at the bottom end of the air cylinder (61).

4. The deformation detection device for steel structures according to claim 3, characterized in that: A sliding rod (67) is rotatably arranged at the bottom end of the guide rod (611), an inclined groove (63) is opened on the side of the sliding rail (3) close to the sliding rod (67), a limiting groove (64) is also opened on the side of the sliding rail (3), the inclined groove (63) is communicated with the limiting groove (64), and the sliding rod (67) is movably arranged on the inner walls of the inclined groove (63) and the limiting groove (64).

5. The deformation detection device for steel structures according to claim 4, characterized in that: A circular groove (612) is opened at the bottom of the clamping plate (5), a movable rod (614) is movably arranged on the inner wall of the circular groove (612), a spring (613) is sleeved on the outer surface of the movable rod (614), the top end of the spring (613) is arranged on the inner wall of the circular groove (612), and a ball (615) is movably embedded inside the bottom end of the movable rod (614), and a transmission member (8) for adjusting the movement of the placement plate (4) is arranged at the sliding rail (3).

6. The deformation detection device for steel structures according to claim 5, characterized in that: The transmission member (8) includes four connecting blocks (83) arranged at the bottoms of the four placement plates (4), threaded rods (81) are arranged in the inner walls of the four connecting blocks (83) in pairs, one end of each of the two threaded rods (81) away from each other is rotatably arranged on the inner wall of the corresponding sliding rail (3), a servo motor (82) is arranged on the side of one of the sliding rails (3), and the output end of the servo motor (82) is arranged on the end face of the adjacent threaded rod (81).

7. The deformation detection device for steel structures according to claim 6, characterized in that: Guide grooves (84) are formed on the adjacent sides of the two slide rails (3). A guide rod (85) is movably arranged on the inner walls of the two guide grooves (84). A spline sleeve (87) is arranged on one of the threaded rods (81) close to the servo motor (82). A spline shaft (86) is arranged on the end face of the other threaded rod (81) far from the servo motor (82). The spline shaft (86) is movably arranged on the inner wall of the spline sleeve (87).

8. The deformation detection device for steel structures according to claim 1, characterized in that: The adjusting member (7) includes a moving plate (74) arranged at the bottom of the slide rail (3). A double-headed screw rod (73) is arranged on the inner wall of the moving plate (74) in a threaded manner. A straight groove (71) is formed on the top of the workbench (1). The two ends of the double-headed screw rod (73) are respectively rotatably arranged on the two sides of the inner wall of the straight groove (71). A hand wheel (72) is arranged at one end of the double-headed screw rod (73) penetrating through the inner wall of the straight groove (71).

9. The deformation detection device for steel structures according to claim 1, characterized in that: Sliders (9) are arranged on both sides of the top of the slide rail (3). Two sliding grooves (10) are formed on the bottom of the placing plate (4). The two sliders (9) are respectively movably arranged on the inner walls of the corresponding sliding grooves (10).

10. The detection method of the deformation detection device for steel structures according to claims 1-9, a detection method of a deformation detection device for steel structures, characterized in that, Specifically, it includes the following steps: S1. First, place the steel to be detected on the placing plate (4), and then start the servo motor (82) to cause the two placing plates (4) to move relatively; S2. Due to the existence of the limiting groove (64) and the air cylinder (61), during the movement of the two placing plates (4), the clamping plate (5) will move downward until the steel to be detected is clamped and fixed; S3. After the steel to be detected is fixed, start the detection head (2), and scan and detect the steel through an external detection device to complete the deformation detection of the steel structure.

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