Engineering steel structure assembly quality detection device and method thereof

Abstract

The invention relates to the technical field of steel material detection, in particular to an engineering steel structure assembly quality detection device and method. Comprising a base plate, one end of the base plate is fixedly provided with a test pushing cylinder, the output end of the test pushing cylinder is provided with a clamping device used for clamping and fixing steel, the end, away from the test pushing cylinder, of the base plate is fixedly provided with an abutting plate, the middle of the base plate is provided with a through hole, and a rotating ring is rotationally arranged in the through hole; a pair of abutting columns are arranged on the rotating ring in an inserted mode, a fixing device for fixing steel is arranged on the abutting plate, a driving device used for driving the rotating ring is arranged at the bottom of the base plate, and a display panel is arranged at the upper end of the base plate. When axial force testing is needed, steel is placed on the base plate, one end of the steel is connected to the testing pushing air cylinder through the clamping device, the other end of the steel is connected to the abutting plate through the fixing device, after the two ends of the steel are fixed, extrusion testing is conducted through the testing pushing air cylinder, and the axial force is tested.

Description

Technical Field

[0001] This application relates to the technical field of steel material testing, in particular to a device and method for detecting the assembly quality of engineering steel structures. Background Art

[0002] The device for detecting the assembly quality of engineering steel structures is an important tool to ensure the quality and safety of steel structure projects. Its design needs to meet the requirements of high precision, high efficiency, multi-functionality, and adaptability to complex construction environments. The following will be described from three aspects: detection principle and functional modules, key technical parameters, application scenarios and advantages.

[0003] In the prior art, the detection of steel structures mainly focuses on the measurement of axial force or bending force, which is detected by a hydraulic cylinder. Since most of the current detection methods are single detection and cannot achieve multiple detections with a single device, this application provides a device and method for detecting the assembly quality of engineering steel structures. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of this application is to provide a device and method for detecting the assembly quality of engineering steel structures to solve the technical problems in the background art.

[0005] The above object of this application is achieved by the following technical solutions: A device for detecting the assembly quality of engineering steel structures includes a base plate. One end of the base plate is fixedly provided with a test pushing cylinder. The output end of the test pushing cylinder is provided with a clamping device for clamping and fixing the steel. One end of the base plate far from the test pushing cylinder is fixedly provided with an abutting plate. A through hole is formed in the middle of the base plate. A rotating ring is rotatably arranged in the through hole. A pair of abutting columns are inserted into the rotating ring. The abutting plate is provided with a fixing device for fixing the steel. The bottom of the base plate is provided with a driving device for driving the rotating ring. A display panel is arranged on the upper end of the base plate.

[0006] By adopting the above technical solutions, various tests can be carried out on the steel in this application. When axial force testing is required, the steel is placed on the base plate, one end is connected to the test pushing cylinder through the clamping device, and the other end is connected to the abutting plate through the fixing device. After both ends are fixed, the test pushing cylinder is used for extrusion testing to test the axial force. At the same time, when bending force testing is required, by keeping both ends fixed, the rotating ring is driven to rotate by the driving device, so that the abutting columns abut against the steel to bend it, thereby the bending force can be tested simultaneously.

[0007] Further, a placement frame is fixedly arranged on the output end of the pushing cylinder, the clamping device is arranged in the placement frame, the clamping device includes a pair of clamping plates arranged inside the placement frame, a moving groove is formed at the bottom of the placement frame, the clamping plates are slidably connected to the moving groove, adjusting studs are respectively rotatably arranged on both sides of the placement frame, the adjusting studs are in threaded connection with the clamping plates, and a clamping motor is fixedly arranged outside the placement frame, and the output end of the clamping motor is fixedly connected to the adjusting stud.

[0008] By adopting the above technical solution, during clamping, after placing one side of the steel in the placement frame, the adjusting studs are driven to rotate by the clamping motors on both sides, so as to drive the clamping plates to move and clamp the steel.

[0009] Further, the fixing device includes a plug-in frame inserted on one side of the base plate, the upper end of the plug-in frame is triangular, and an adjusting device for adjusting the plug-in frame up and down is arranged at the upper end of the plug-in frame.

[0010] Further, the adjusting device includes a connecting plate fixedly connected to the abutting plate, an adjusting cylinder is fixedly arranged on the connecting plate, and the output end of the adjusting cylinder is fixedly connected to the upper end of the plug-in frame.

[0011] By adopting the above technical solution, the plug-in frame is driven by the adjusting cylinder to move it, and the plug-in frame is pressed down. The triangular plug-in frame can extrude and fix steel of different sizes.

[0012] Further, the driving device includes a driven gear fixedly connected to the bottom of the rotating ring, a rotating motor is fixedly arranged at the bottom of the base plate, and a driving gear meshing with the driven gear is fixedly connected to the output end of the rotating motor.

[0013] By adopting the above technical solution, when the rotating motor rotates, the driven gear is driven by the driving gear, so as to make the rotating ring rotate.

[0014] Further, an L-shaped bracket is fixedly arranged at the bottom of the base plate, a testing cylinder is fixedly arranged on the L-shaped bracket, the output end of the testing cylinder faces upward, and an abutting block is fixedly arranged at the output end of the testing cylinder.

[0015] By adopting the above technical solution, considering that in addition to the axial force and bending force, the steel also needs to be tested for its own hardness. In this application, the steel shaft is tested by the testing cylinder.

[0016] Further, a pair of placement plates are arranged at the upper end of the rotating ring, moving plates are arranged on both sides of the placement plates, a moving motor is fixedly arranged on the moving plates, the output end of the moving motor faces upward, and a moving block is fixedly arranged at the output end of the moving motor.

[0017] By adopting the above technical solution, since multiple points are required for testing the shaft body, in order to facilitate the movement of the steel on the substrate, the moving motors on both sides rotate, and the rotating directions of the moving motors are opposite. The moving blocks abut against the shaft body of the steel, squeeze and move it, thereby driving the steel to move. For testing, the rotating ring is rotated by 90 degrees, so as to prevent the abutting plate and the test pushing cylinder from blocking the movement of the steel.

[0018] Furthermore, the moving plate is slidably connected to the placing plate, and a placing cylinder is fixedly arranged on the placing plate, and the output end of the placing cylinder is fixedly connected to the moving plate.

[0019] By adopting the above technical solution, in order to deal with steel of different sizes, the distance between the moving plates can be adjusted. To facilitate the movement of steel of different sizes, the placing cylinder pushes the connecting plate, thereby achieving this purpose.

[0020] Furthermore, a blocking strip is fixedly arranged on the placing frame, and a groove matching the blocking strip is formed on the clamping plate.

[0021] Furthermore, a method for detecting the assembly quality of an engineering steel structure is applied to the engineering steel structure assembly quality detection device described in any one of the above technical solutions, and includes the following steps:

[0022] S1. First, place the steel to be tested along the center line of the substrate to ensure that the axial direction is consistent with the test direction; start the clamping motor to drive the adjusting stud, so that the clamping plates on both sides move synchronously towards the end of the steel to complete the fixation. At this time, the clamping plate groove and the placing frame blocking strip form a self-locking structure. Then, control the adjusting cylinder to push the inserting frame downward. After its triangular inclined plane contacts the other end of the steel, it automatically centers and locks;

[0023] S2. When performing axial pressure testing, set the loading parameters through the control panel. The test pushing cylinder pushes the steel at a preset rate until the target pressure value is reached, and the sensor data is real-time fed back to the display panel to generate a force-displacement curve. When switching to the bending test mode, the rotating motor starts to drive the driving gear to rotate, driving the driven gear to rotate the rotating ring by 45°. After the abutting column contacts the steel, continue to apply torque, and the system synchronously records the bending angle and the corresponding load value;

[0024] S3. When performing hardness detection, the test cylinder extends the abutting block to apply a standard pressure to the specified position of the steel, and cooperates with the moving motor to drive the hard rubber block to move axially to achieve continuous multi-point hardness detection. During the detection process, the moving cylinder can dynamically adjust the plate spacing to adapt to steel of different specifications to ensure uniform contact pressure. After all tests are completed, each actuator automatically resets, and the clamping device is loosened to take out the steel;

[0025] S4. The system generates a comprehensive test report including axial bearing capacity, flexural stiffness, and Brinell hardness value.

[0026] By adopting the above technical solution, the axial loading, bending test, and hardness test are integrated into a single process, improving the test efficiency. At the same time, a dual-closed-loop adaptive control system is adopted. Through the data fusion of the pressure sensor and the displacement sensor, a geometric adaptive fixture system is innovatively designed. The triangular plug-in frame is combined with the pneumatic adjustment device, which can be compatible with the steel material testing with a diameter of 50 - 300 mm.

[0027] In summary, the present application includes the following beneficial technical effects: Through the synergistic effect of the cylinder pushing and the contact column of the rotating ring, a single device can complete two test modes of axial extrusion test and three-point bending test, covering the key mechanical property indicators of steel structures and avoiding the errors caused by repeated clamping of multiple devices. The servo drive system cooperates with the rotational movement of the rotating ring, and the position of the bending loading point can be accurately controlled (adjusted through the contact point of the contact column). Compared with the traditional bending testing machine, it can simulate more complex stress conditions, and the test data is closer to the actual engineering scenario. The quick clamping design of the clamping device and the fixing device, combined with the programmed control of the driving device, shortens the switching time between the two test modes by more than 60%. The automated test process reduces the interference of human operation and improves the test efficiency. The display panel integrates the signals of the two sensors (the pressure sensor monitors the axial force, and the displacement sensor records the bending deflection), and the force-displacement curve is drawn in real time through the algorithm. The dual-parameter synchronous acquisition function provides a complete data chain for material property analysis and supports the accurate calculation of key indicators such as yield strength and elongation. Description of the Drawings

[0028] Figure 1 is the schematic diagram of the overall structure in the embodiment;

[0029] Figure 2 is Figure 1 the enlarged view at A in

[0030] Figure 3 is the schematic diagram of the structure from another perspective in the embodiment;

[0031] Figure 4 is Figure 3 the enlarged view at B in

[0032] Figure 5 is the schematic diagram of the bottom structure of the substrate.

[0033] Reference Numerals: 1, substrate; 10, display panel; 11, test push cylinder; 12, placement frame; 13, blocking strip; 131, groove; 14, clamping plate; 15, clamping motor; 16, adjusting stud; 2, rotating ring; 20, abutting column; 21, placement plate; 22, moving plate; 23, placement cylinder; 24, moving block; 25, moving motor; 3, abutting plate; 31, connecting plate; 32, adjusting cylinder; 33, plug-in frame; 4, rotating motor; 41, driving gear; 42, driven gear; 43, L-shaped bracket; 44, test cylinder; 45, abutting block. Detailed Embodiment

[0034] The following further elaborates on the present application in conjunction with the accompanying drawings.

[0035] Embodiment, referring to Figure 1 - Figure 5 , a quality inspection device for the assembly of engineering steel structures, including a substrate 1, a test push cylinder 11 is fixedly arranged at one end of the substrate 1, a clamping device for clamping and fixing steel is arranged at the output end of the test push cylinder 11, an abutting plate 3 is fixedly arranged at the end of the substrate 1 far from the test push cylinder 11, a through hole is opened in the middle of the substrate 1, a rotating ring 2 is rotatably arranged in the through hole, a pair of abutting columns 20 are inserted on the rotating ring 2, a fixing device for fixing steel is arranged on the abutting plate 3, a driving device for driving the rotating ring 2 is arranged at the bottom of the substrate 1, and a display panel 10 is arranged at the upper end of the substrate 1.

[0036] In the present application, various tests can be performed on steel. When axial force testing is required, the steel is placed on the substrate 1, one end is connected to the test push cylinder 11 through the clamping device, and the other end is connected to the abutting plate 3 through the fixing device. After both ends are fixed, extrusion testing is performed through the test push cylinder 11 to test the axial force. At the same time, when bending force testing is required, by keeping both ends fixed and driving the rotating ring 2 to rotate through the driving device, the abutting column 20 abuts against the steel to bend it, so that the bending force can be tested simultaneously.

[0037] In this embodiment, a placement frame 12 is fixedly arranged at the output end of the push cylinder. The clamping device is arranged in the placement frame 12. The clamping device includes a pair of clamping plates 14 arranged inside the placement frame 12. A moving groove is opened at the bottom of the placement frame 12. The clamping plates 14 are slidably connected to the moving groove. An adjusting stud 16 is rotatably arranged on both sides of the placement frame 12 respectively. The adjusting stud 16 is threadedly connected to the clamping plate 14. A clamping motor 15 is fixedly arranged outside the placement frame 12. The output end of the clamping motor 15 is fixedly connected to the adjusting stud 16.

[0038] During clamping, after placing one side of the steel in the placement frame 12, the adjusting studs 16 are driven to rotate by the clamping motors 15 on both sides, thereby driving the clamping plates 14 to move to clamp the steel.

[0039] In this embodiment, the fixing device includes a plug-in frame 33 plugged on one side of the substrate 1. The upper end of the plug-in frame 33 is triangular, and an adjusting device for adjusting the plug-in frame 33 up and down is provided at the upper end of the plug-in frame 33. The adjusting device includes a connecting plate 31 fixedly connected to the abutting plate 3. An adjusting cylinder 32 is fixedly arranged on the connecting plate 31, and the output end of the adjusting cylinder 32 is fixedly connected to the upper end of the plug-in frame 33.

[0040] The plug-in frame 33 is driven by the adjusting cylinder 32 to move it, and the plug-in frame 33 is pressed down. Different-sized steel materials can be squeezed and fixed by the triangular plug-in frame 33.

[0041] In this embodiment, the driving device includes a driven gear 42 fixedly connected to the bottom of the rotating ring 2. A rotating motor 4 is fixedly arranged at the bottom of the substrate 1, and a driving gear 41 meshing with the driven gear 42 is fixedly connected to the output end of the rotating motor 4. When the rotating motor 4 rotates, the driven gear 42 is driven by the driving gear 41, so that the rotating ring 2 rotates.

[0042] In this embodiment, an L-shaped bracket 43 is fixedly arranged at the bottom of the substrate 1. A testing cylinder 44 is fixedly arranged on the L-shaped bracket 43. The output end of the testing cylinder 44 faces upward, and an abutting block is fixedly arranged at the output end of the testing cylinder 44.

[0043] Considering that in addition to axial force and bending force, the steel material also needs to test its own hardness. In this application, the steel material shaft is tested by the testing cylinder 44.

[0044] In this embodiment, a pair of placing plates 21 are arranged at the upper end of the rotating ring 2. Moving plates 22 are arranged on both sides of the placing plates 21. A moving motor 25 is fixedly arranged on the moving plates 22. The output end of the moving motor 25 faces upward, and a moving block 24 is fixedly arranged at the output end of the moving motor 25. Since multiple points are required for testing the shaft body, in order to facilitate the movement of the steel material on the substrate 1, the moving motors 25 on both sides rotate in opposite directions. The moving block 24 abuts against the steel material shaft body for extrusion and movement, thereby driving the steel material to move. For testing, the rotating ring 2 is rotated by 90 degrees, so as to prevent the abutting plate 3 and the testing push cylinder 11 from blocking the movement of the steel material.

[0045] In this embodiment, the moving plate is slidably connected to the placing plate 21. A placing cylinder 23 is fixedly arranged on the placing plate 21, and the output end of the placing cylinder 23 is fixedly connected to the moving plate. In order to deal with steel materials of different sizes, the distance between the moving plates can be adjusted. To facilitate the movement of different-sized steel materials, the placing cylinder 23 is used to push the connecting plate 31 to achieve this purpose.

[0046] In this embodiment, a rigid rubber is fixedly arranged on the outer side of the moving block 24. A blocking strip 13 is fixedly arranged on the placing frame 12, and a groove 131 matching the blocking strip 13 is formed on the clamping plate 14.

[0047] In this embodiment, a method for detecting the assembly quality of engineering steel structures is applied to any one of the above technical solutions of an assembly quality detection device for engineering steel structures, and includes the following steps:

[0048] S1. First, place the steel to be tested along the midline of the substrate 1 to ensure that the axial direction is consistent with the test direction; start the clamping motor 15 to drive the adjusting stud 16, so that the two clamping plates 14 move synchronously towards the end of the steel to complete the fixation. At this time, the groove 131 of the clamping plate 14 and the blocking strip 13 of the placing frame 12 form a self-locking structure. Then, control the adjusting cylinder 32 to push the inserting frame 33 downward. After its triangular inclined surface contacts the other end of the steel, it automatically centers and locks;

[0049] S2. When performing the axial pressure test, set the loading parameters through the control panel. Test and push the cylinder 11 to push the steel at a preset rate until the target pressure value is reached. The sensor data is fed back to the display panel 10 in real time to generate a force-displacement curve. When switching to the bending test mode, the rotating motor 4 starts to drive the driving gear 41 to rotate, driving the driven gear 42 to make the rotating ring 2 rotate 45°. After the abutting column 20 contacts the steel, continue to apply torque, and the system synchronously records the bending angle and the corresponding load value;

[0050] S3. When performing the hardness test, the test cylinder 44 extends the abutting block to apply a standard pressure to the specified position of the steel, and cooperates with the moving motor 25 to drive the rigid rubber block to move axially to realize continuous multi-point hardness detection. During the detection process, the moving cylinder can dynamically adjust the plate spacing to adapt to steel of different specifications to ensure uniform contact pressure. After all the tests are completed, each actuator automatically resets, and the clamping device is loosened to take out the steel;

[0051] S4. The system generates a comprehensive detection report including axial bearing capacity, bending stiffness, and Brinell hardness value.

[0052] Integrate axial loading, bending test, and hardness detection into a single process to improve the detection efficiency; at the same time, adopt a double-closed-loop adaptive control system. Through the data fusion of the pressure sensor and the displacement sensor, innovatively design a geometric adaptive fixture system. The triangular inserting frame 33 cooperates with the pneumatic adjustment device to be compatible with the detection of steel with a diameter of 50 - 300 mm.

[0053] Specific usage process: First, position the steel to be tested along the midline of the substrate 1. Start the clamping motor 15 to drive the adjusting stud 16 to drive the bilateral clamping plates 14 to move synchronously, and complete the locking of one end of the steel. At this time, the groove 131 of the clamping plate 14 and the blocking strip 13 of the placement frame 12 form a self-locking structure. Then, adjust the cylinder 32 to push the triangular plug-in frame 33 downward, and its inclined surface automatically centers and locks the other end of the steel to complete the adaptive clamping. When performing the axial pressure test, set the loading parameters through the control panel, and the test push cylinder 11 pushes the steel to the target pressure value at a preset rate. The sensor data is fed back in real time to generate a force-displacement curve. When switching to the bending test mode, the rotation motor 4 drives the rotating ring 2 to rotate 45°, and the abutting column 20 applies torque after contacting the steel. The system synchronously records the bending angle and the load value. When performing the hardness test, the test cylinder 44 extends the abutting block to apply a standard pressure to the specified position, and the moving motor 25 drives the hard rubber block to move axially to achieve multi-point continuous detection. The moving cylinder dynamically adjusts the plate spacing to ensure uniform contact. After all the tests are completed, each actuator automatically resets, releases the clamping device, and takes out the steel. Finally, the system generates a comprehensive test report including the axial bearing capacity, bending stiffness, and Brinell hardness.

[0054] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of the application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An assembly quality inspection device for engineering steel structures, characterized in that, It includes a substrate (1), on one end of which a test push cylinder (11) is fixedly arranged. On the output end of the test push cylinder (11), a clamping device for clamping and fixing steel is arranged. On the end of the substrate (1) far from the test push cylinder (11), a butting plate (3) is fixedly arranged. A through hole is formed in the middle of the substrate (1), and a rotating ring (2) is rotatably arranged in the through hole. A pair of butting columns (20) are inserted into the rotating ring (2). A fixing device for fixing steel is arranged on the butting plate (3). A driving device for driving the rotating ring (2) is arranged at the bottom of the substrate (1). A display panel (10) is arranged at the upper end of the substrate (1).

2. The assembly quality inspection device for engineering steel structures according to claim 1, characterized in that, A placement frame (12) is fixedly arranged on the output end of the push cylinder. The clamping device is arranged in the placement frame (12). The clamping device includes a pair of clamping plates (14) arranged inside the placement frame (12). A moving groove is formed at the bottom of the placement frame (12). The clamping plates (14) are slidably connected to the moving groove. An adjusting screw (16) is rotatably arranged on each side of the placement frame (12). The adjusting screw (16) is threadedly connected to the clamping plate (14). A clamping motor (15) is fixedly arranged outside the placement frame (12). The output end of the clamping motor (15) is fixedly connected to the adjusting screw (16).

3. The assembly quality inspection device for engineering steel structures according to claim 2, characterized in that, The fixing device includes a plug-in frame (33) inserted into one side of the substrate (1). The upper end of the plug-in frame (33) is triangular, and an adjusting device for adjusting the plug-in frame (33) up and down is arranged at the upper end of the plug-in frame (33).

4. The engineering steel structure assembly quality detection device according to claim 3, wherein The adjusting device includes a connecting plate (31) fixedly connected to the butting plate (3). An adjusting cylinder (32) is fixedly arranged on the connecting plate (31). The output end of the adjusting cylinder (32) is fixedly connected to the upper end of the plug-in frame (33).

5. The engineering steel structure assembly quality detection device according to claim 1, characterized in that, The driving device includes a driven gear (42) fixedly connected to the bottom of the rotating ring (2). A rotating motor (4) is fixedly arranged at the bottom of the substrate (1). The output end of the rotating motor (4) is fixedly connected to a driving gear (41) meshing with the driven gear (42).

6. The assembly quality inspection device for engineering steel structures according to claim 1, wherein An L-shaped bracket (43) is fixedly arranged at the bottom of the substrate (1). A test cylinder (44) is fixedly arranged on the L-shaped bracket (43). The output end of the test cylinder (44) faces upward, and a butting block is fixedly arranged at the output end of the test cylinder (44).

7. The quality inspection device for assembling engineering steel structures according to claim 1, wherein, A pair of placement plates (21) are arranged at the upper end of the rotating ring (2). Moving plates (22) are arranged on both sides of the placement plates (21). A moving motor (25) is fixedly arranged on the moving plates (22). The output end of the moving motor (25) faces upward, and a moving block (24) is fixedly arranged at the output end of the moving motor (25).

8. The engineering steel structure assembly quality detection device according to claim 7, characterized in that, The moving plates are slidably connected to the placement plates (21). A placement cylinder (23) is fixedly arranged on the placement plates (21). The output end of the placement cylinder (23) is fixedly connected to the moving plates.

9. The engineering steel structure assembly quality detection device according to claim 1, wherein, A blocking strip (13) is fixedly arranged on the placement frame (12), and a groove (131) matching the blocking strip (13) is formed in the clamping plate (14).

10. A method for detecting the assembly quality of a steel structure for engineering applications, which is applied to the device for detecting the assembly quality of a steel structure for engineering applications described in any one of claims 1-9, characterized in that, The method includes the following steps: S1. First, place the steel to be tested along the center line of the substrate (1) to ensure that the axial direction is consistent with the test direction; start the clamping motor (15) to drive the adjusting stud (16) so that the two clamping plates (14) move synchronously towards the end of the steel to complete fixation. At this time, the groove (131) of the clamping plate (14) and the blocking strip (13) of the placement frame (12) form a self-locking structure. Then, control the adjusting cylinder (32) to push the plug-in frame (33) downward. After its triangular inclined surface contacts the other end of the steel, it automatically centers and locks in place; S2. When performing an axial pressure test, set the loading parameters through the control panel. The test push cylinder (11) pushes the steel at a preset rate until the target pressure value is reached. The sensor data is real-time fed back to the display panel (10) to generate a force-displacement curve. When switching to the bending test mode, start the rotating motor (4) to drive the rotation of the driving gear (41), drive the driven gear (42) to rotate the rotating ring (2) by 45°. After the abutting column (20) contacts the steel, continue to apply torque. The system synchronously records the bending angle and the corresponding load value; S3. When performing hardness detection, the test cylinder (44) extends the abutting block to apply a standard pressure to a specified position of the steel, and cooperate with the moving motor (25) to drive the hard rubber block to move axially to achieve continuous multi-point hardness detection. During the detection process, the moving cylinder can dynamically adjust the plate spacing to adapt to steels of different specifications to ensure uniform contact pressure. After all the tests are completed, each actuator automatically resets, and the clamping device is loosened to take out the steel; S4. The system generates a comprehensive test report including axial bearing capacity, bending stiffness, and Brinell hardness value.

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