A method for quality inspection of key components of assembled structures

Abstract

The present invention discloses a method for quality inspection of key components of assembled structures, which relates to the technical field of component quality inspection. The method comprises: S1, transporting and placing the key components to the designated position on the automatic inspection device; S2, running the automatic inspection device to automatically perform ultrasonic inspection on the components. The automatic inspection device comprises two device bases and an ultrasonic probe, the tops of the two device bases are both equipped with vertical support plates, the sides of the two vertical support plates close to each other are jointly rotated with horizontal screws and hexagonal rotating rods, and the side of one of the vertical support plates is equipped with a motor seat. In the present invention, when the servo motor is started, the ultrasonic probe is automatically driven to move up and down after each movement of a certain distance, so as to uniformly inspect the components, save time and effort, reduce the workload, and effectively reduce the situation where large errors in the inspection results occur due to errors in the selection of the inspection point position, and has good practicality.

Description

Technical Field

[0001] The invention relates to the technical field of component quality detection, and in particular to a method for detecting the quality of key components of an assembled structure. Background Art

[0002] Prefabricated buildings are mainly made of prefabricated concrete components, and are building structures formed through on-site assembly, connection and cast-in-place. With the widespread application of prefabricated buildings, in order to improve the quality of prefabricated buildings, it is required to carry out quality inspection of key components of prefabricated building structures. At present, low-frequency ultrasonic instruments are usually used for ultrasonic inspection to measure the changes in acoustic parameters such as the propagation speed of ultrasonic longitudinal waves in structural grouting materials, the speed of sound waves and the frequency of received signals to determine the defects in the grouting materials.

[0003] When conducting ultrasonic testing, it is generally necessary to uniformly test multiple positions on a component, and the traditional testing method is usually to manually use a handheld ultrasonic probe for testing. Before testing, the staff must manually measure and select multiple testing points. The testing process is time-consuming and labor-intensive, and the workload is heavy. It is also easy to make mistakes in selecting the positions of the testing points, resulting in large errors in the test results. For this reason, the present application discloses a quality testing method for key components of prefabricated structures to meet people's needs. Summary of the invention

[0004] The purpose of the present application is to provide a method for quality inspection of key components of prefabricated structures, so as to solve the problem that the method of manually holding an ultrasonic probe for inspection proposed in the above-mentioned background technology requires staff to manually measure and select multiple inspection points before inspection. The inspection process is time-consuming and labor-intensive, with a heavy workload, and it is easy to make mistakes in the selection of inspection point positions, resulting in large errors in the inspection results.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a method for quality inspection of key components of an assembled structure, the method comprising:

[0006] S1. Transport the key components to the designated position on the automatic testing device;

[0007] S2. Run the automatic detection device to automatically perform ultrasonic detection on the components.

[0008] The automatic detection device includes two device bases and an ultrasonic probe, the tops of the two device bases are each installed with a vertical support plate, the sides of the two vertical support plates close to each other are jointly rotated with a horizontal screw and a hexagonal rotating rod, the side of one of the vertical support plates is installed with a motor seat, the top of the motor seat is installed with a servo motor, the output end of the servo motor is connected to one end of the hexagonal rotating rod, the hexagonal rotating rod drives the horizontal screw to rotate intermittently through a gear transmission unit, a horizontal moving block is threadedly sleeved on the horizontal screw, a horizontal guide unit is installed on the horizontal moving block, a cross-shaped plate is installed at the bottom of the horizontal moving block, and two fixed A fixed connecting rod, a fixed cross plate is commonly installed at the bottom ends of the two fixed connecting rods, two vertical sliding holes are provided on the top of the fixed cross plate, vertical sliding rods are slidably installed in the two vertical sliding holes, a blocking plate is commonly installed on the top ends of the two vertical sliding rods, a rotating sleeve is slidably sleeved on the hexagonal rotating rod, a limiting connection unit is installed on the rotating sleeve, an extrusion cam is sleeved on the rotating sleeve, the top of the blocking plate is fitted with the bottom of the extrusion cam, an elastic reset unit is installed on the blocking plate, a hollow sliding rod is slidably sleeved on the two vertical sliding rods, a fastening unit is installed on the hollow sliding rod, and the ultrasonic probe is installed on the bottom ends of the two hollow sliding rods.

[0009] Preferably, the elastic reset unit comprises a reset spring sleeved on the vertical slide rod, and two ends of the reset spring are respectively in contact with the top of the fixed horizontal plate and the bottom of the blocking plate.

[0010] Preferably, the limiting connection unit comprises two limiting connecting rods symmetrically mounted on the bottom of the cross-shaped plate, the bottom ends of the two limiting connecting rods are both mounted with limiting bearings, and the two limiting bearings are both sleeve-mounted on the rotating sleeve.

[0011] Preferably, the gear transmission unit comprises a notched gear mounted on the end of the hexagonal rotating rod, and a connecting gear matching the notched gear is mounted on one end of the horizontal screw rod.

[0012] Preferably, the fastening unit comprises a fastening bolt, a fastening screw hole is opened on the side of the hollow sliding rod, the fastening bolt is threadedly installed in the fastening screw hole, and one end of the fastening bolt is in contact with the side of the vertical sliding rod.

[0013] Preferably, the horizontal guide unit comprises a horizontal guide rod installed between the two vertical support plates, and the horizontal shift block is slidably sleeved on the horizontal guide rod.

[0014] Preferably, a plurality of rotating holes are evenly opened on the sides of the two device bases, and a supporting rotating rod is installed in each two corresponding rotating holes for common rotation, and movable rotating rollers are sleeved and installed on the plurality of supporting rotating rods, and synchronous gears are installed at one end of the plurality of supporting rotating rods, and synchronous chains are installed on the plurality of synchronous gears in common meshing, and an L-shaped hand crank is installed on the other end of one of the supporting rotating rods, and a resistance assembly is installed on one of the supporting rotating rods.

[0015] Preferably, the resistance assembly includes a fixed protrusion installed on the side of one of the device bases, the top of the fixed protrusion is provided with a hexagonal sliding hole, a hexagonal sliding rod is slidably installed in the hexagonal sliding hole, a friction block that fits with the outer peripheral side of the supporting rotating rod is installed at the bottom end of the hexagonal sliding rod, a control pull block is installed at the top of the hexagonal sliding rod, and an elastic extrusion unit is installed on the friction block.

[0016] Preferably, the elastic extrusion unit comprises an extrusion spring sleeved on the hexagonal slide rod, and two ends of the extrusion spring are respectively in contact with the bottom of the fixed protrusion and the top of the friction block.

[0017] In summary, the technical effects and advantages of the present invention are as follows:

[0018] 1. In the present invention, when the servo motor is started, the ultrasonic probe is driven to move up and down through the hexagonal rotating rod, rotating sleeve, extrusion cam, reset spring, blocking plate, vertical slide rod, and hollow slide rod to perform ultrasonic detection on the component. At the same time, the rotation of the hexagonal rotating rod drives the horizontal moving block and the ultrasonic probe to move horizontally intermittently through the notched gear, connecting gear, and horizontal screw, so that the ultrasonic probe can automatically detect at intervals. The purpose of uniform automatic detection of the component is achieved, which saves time and effort, reduces the workload, and can effectively reduce the situation where the detection result has a large error due to the wrong selection of the detection point position, and has good practicality.

[0019] 2. In the present invention, when the L-shaped hand crank is rotated, one of the supporting rotating rods will be driven to rotate, and under the action of the synchronous gear and the synchronous chain, multiple supporting rotating rods will be caused to rotate synchronously, and then the component can be driven to move by moving the rotating roller, thereby achieving the purpose of adjusting the detection position of the component and improving the practicality;

[0020] 3. In the present invention, when the control pull block is pulled, the friction block will be driven away through the hexagonal slide bar and the support rotating rod will be released. At this time, the L-shaped hand crank can be rotated to adjust the operation. When the control pull block is released, the elastic force of the extrusion spring will squeeze and push the friction block to move downward, and it will always be in close contact with the outer peripheral side of the support rotating rod to increase the friction force, effectively reducing the deviation of the component caused by the self-rotation of the support rotating rod;

[0021] 4. In the present invention, when the fastening bolt is rotated, the hollow slide bar will be fixed or loosened, and the position of the ultrasonic probe can be adjusted by sliding the hollow slide bar, thereby achieving the purpose of enabling the device to adapt and detect components of different thicknesses, thereby improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of an embodiment of the present application;

[0025] Figure 3 This is a partially enlarged structural schematic diagram of the connection between the horizontal shift block and the vertical slide rod in the embodiment of the present application;

[0026] Figure 4 This is a partially enlarged structural schematic diagram of the connection between the ultrasonic probe and the blocking plate in the embodiment of the present application;

[0027] Figure 5 for Figure 2 A partially enlarged structural schematic diagram;

[0028] Figure 6 It is a partially enlarged structural schematic diagram of the resistance component in the embodiment of the present application.

[0029] In the figure: 1. device base; 2. ultrasonic probe; 3. vertical support plate; 4. horizontal screw; 5. hexagonal rotating rod; 6. servo motor; 7. horizontal moving block; 8. cross-shaped plate; 9. fixed connecting rod; 10. fixed horizontal plate; 11. rotating sleeve; 12. extrusion cam; 13. vertical slide rod; 14. blocking plate; 15. hollow slide rod; 16. reset spring; 17. limiting bearing; 18. limiting connecting rod; 19. fastening bolt; 20. notched gear; 21. connecting gear; 22. horizontal guide rod; 23. supporting rotating rod; 24. moving roller; 25. synchronous gear; 26. synchronous chain; 27. L-shaped hand crank; 28. fixed protrusion; 29. ​​hexagonal slide rod; 30. friction block; 31. control pull block; 32. extrusion spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment: A method for quality inspection of key components of an assembled structure, the method comprising:

[0032] S1. Transport the key components to the designated position on the automatic testing device;

[0033] S2. Run the automatic detection device to automatically perform ultrasonic detection on the components.

[0034] refer to Figure 1-Figure 6 As shown, the automatic detection device includes two device bases 1 and an ultrasonic probe 2. A vertical support plate 3 is installed on the top of the two device bases 1. The sides of the two vertical support plates 3 close to each other are jointly rotated with a horizontal screw 4 and a hexagonal rotating rod 5. A motor seat is installed on the side of one of the vertical support plates 3. A servo motor 6 is installed on the top of the motor seat. The output end of the servo motor 6 is connected to one end of the hexagonal rotating rod 5. The hexagonal rotating rod 5 drives the horizontal screw 4 to rotate intermittently through a gear transmission unit. A horizontal moving block 7 is threadedly sleeved on the horizontal screw 4. A horizontal guiding unit is installed on the horizontal moving block 7. A cross plate 8 is installed at the bottom of the horizontal moving block 7. Two fixed connecting rods 9 are symmetrically installed at the bottom of the cross plate 8. A fixed cross plate 10 is commonly installed at the bottom ends of the two fixed connecting rods 9. Two vertical sliding holes are provided on the top of the plate 10, and vertical sliding rods 13 are slidably installed in the two vertical sliding holes. A blocking plate 14 is installed on the top of the two vertical sliding rods 13. A rotating sleeve 11 is slidably sleeved on the hexagonal rotating rod 5. It should be noted that the rotating sleeve 11 can slide left and right on the hexagonal rotating rod 5, and when the hexagonal rotating rod 5 rotates, it will drive the rotating sleeve 11 to rotate together; a limiting connection unit is installed on the rotating sleeve 11, and an extrusion cam 12 is sleeved on the rotating sleeve 11. The top of the blocking plate 14 is fitted with the bottom of the extrusion cam 12, and an elastic reset unit is installed on the blocking plate 14. Hollow sliding rods 15 are slidably sleeved on the two vertical sliding rods 13, and a fastening unit is installed on the hollow sliding rod 15. The ultrasonic probe 2 is installed on the bottom ends of the two hollow sliding rods 15.

[0035] By means of the above structure, when the servo motor 6 is started, the extrusion cam 12 will be driven to rotate through the hexagonal rotating rod 5 and the rotating sleeve 11. With the cooperation of the elastic reset unit, the rotation of the extrusion cam 12 will drive the blocking plate 14 to move up and down, and then the ultrasonic probe 2 can be driven to move up and down through the vertical slide bar 13 and the hollow slide bar 15 to perform ultrasonic detection on the component. At the same time, the rotation of the hexagonal rotating rod 5 will drive the horizontal screw 4 to rotate intermittently through the gear transmission unit. The rotation of the horizontal screw 4 will drive the horizontal moving block 7 and the ultrasonic probe 2 to move horizontally, so that the ultrasonic probe 2 can automatically detect at a certain distance, thereby achieving the purpose of automatically and uniformly detecting the component, saving time and effort, reducing the workload, and effectively reducing the situation where large errors in the detection results occur due to incorrect selection of the detection point position, and has good practicality.

[0036] As a preferred implementation of this embodiment, the elastic reset unit includes a reset spring 16 sleeved on the vertical slide bar 13, and the two ends of the reset spring 16 are respectively in contact with the top of the fixed horizontal plate 10 and the bottom of the blocking plate 14. The advantage of this arrangement is that under the elastic force of the reset spring 16, the blocking plate 14 will be squeezed and pushed to move upward until it is in contact with the bottom of the squeezing cam 12, thereby achieving the purpose of enabling the blocking plate 14 to move up and down with the rotation of the squeezing cam 12.

[0037] As a preferred implementation of this embodiment, the limiting connection unit includes two limiting connecting rods 18 symmetrically mounted on the bottom of the cross-shaped plate 8, and the bottom ends of the two limiting connecting rods 18 are both mounted with limiting bearings 17, and the two limiting bearings 17 are both sleeved and mounted on the rotating sleeve 11. The advantage of this arrangement is that the rotating sleeve 11 can be driven to move together during the horizontal movement of the ultrasonic probe 2, so that the extrusion cam 12 and the blocking plate 14 can always be in a fitted state, and the stability during operation is good.

[0038] As a preferred implementation of this embodiment, the gear transmission unit includes a notched gear 20 installed on the end of the hexagonal rotating rod 5, and a connecting gear 21 matching the notched gear 20 is installed at one end of the horizontal screw rod 4. The advantage of this arrangement is that when the hexagonal rotating rod 5 rotates, the notched gear 20 will be driven to rotate, and when the notched gear 20 rotates to mesh with the connecting gear 21, the rotation of the notched gear 20 will drive the connecting gear 21 and the horizontal screw rod 4 to rotate, and when the notched gear 20 rotates to disengage from the connecting gear 21, the connecting gear 21 and the horizontal screw rod 4 will stop rotating, thereby achieving the purpose of driving the horizontal screw rod 4 to rotate intermittently and achieving the purpose of intermittent transmission.

[0039] As a preferred implementation of this embodiment, the fastening unit includes a fastening bolt 19, a fastening screw hole is provided on the side of the hollow slide bar 15, the fastening bolt 19 is threadedly installed in the fastening screw hole, and one end of the fastening bolt 19 is in contact with the side of the vertical slide bar 13. The advantage of this arrangement is that when the fastening bolt 19 is rotated, the hollow slide bar 15 is fixed or loosened, and the position of the ultrasonic probe 2 can be adjusted, so that the device can adapt to the detection of components of different thicknesses, thereby improving the scope of application.

[0040] As a preferred implementation of this embodiment, the horizontal guide unit includes a horizontal guide rod 22 installed between two vertical support plates 3, and the horizontal shift block 7 is slidably sleeved on the horizontal guide rod 22. The advantage of this arrangement is that the horizontal shift block 7 can only move horizontally and will not rotate with the horizontal screw rod 4, playing a horizontal guiding role and having good stability.

[0041] As a preferred implementation of this embodiment, a plurality of rotating holes are evenly opened on the sides of the two device bases 1, and a supporting rotating rod 23 is installed in common rotation in every two corresponding rotating holes, and a moving roller 24 is sleeved and installed on the plurality of supporting rotating rods 23, and a synchronous gear 25 is installed at one end of the plurality of supporting rotating rods 23, and a synchronous chain 26 is installed on the plurality of synchronous gears 25 in common meshing, and an L-shaped hand crank 27 is installed at the other end of one of the supporting rotating rods 23, and a resistance component is installed on one of the supporting rotating rods 23. The advantage of such a setting is that when the L-shaped hand crank 27 is rotated, one of the supporting rotating rods 23 will be driven to rotate, and under the action of the synchronous gear 25 and the synchronous chain 26, the plurality of supporting rotating rods 23 will be caused to rotate synchronously, and then the component can be driven to move by the moving roller 24, thereby achieving the purpose of adjusting the detection position of the component, and having better practicality.

[0042] In this embodiment, the resistance assembly includes a fixed protrusion 28 installed on the side of one of the device bases 1, a hexagonal sliding hole is provided on the top of the fixed protrusion 28, a hexagonal sliding rod 29 is slidably installed in the hexagonal sliding hole, a friction block 30 that fits the outer peripheral side of the support rotating rod 23 is installed at the bottom of the hexagonal sliding rod 29, a control pull block 31 is installed at the top of the hexagonal sliding rod 29, and an elastic extrusion unit is installed on the friction block 30. The advantage of this arrangement is that when the control pull block 31 is moved, the friction block 30 will be driven to move up and down through the hexagonal sliding rod 29, thereby changing the friction between the friction block 30 and the support rotating rod 23, which can effectively reduce the deviation of the component caused by the self-rotation of the support rotating rod 23 during the detection process, and the detection is more stable.

[0043] In this embodiment, the elastic extrusion unit includes an extrusion spring 32 sleeved on the hexagonal slide bar 29, and the two ends of the extrusion spring 32 are respectively in contact with the bottom of the fixed protrusion 28 and the top of the friction block 30. The advantage of this arrangement is that when the control pull block 31 is released, the elastic force of the extrusion spring 32 will squeeze and push the friction block 30 to move downward, and it will always be in close contact with the outer peripheral side of the support rotating rod 23 to increase the friction force, which is stable and reliable.

[0044] Working principle of the present invention:

[0045] Place the component to be inspected on the moving roller 24, pull the control pull block 31 to make the friction block 30 move away from and release the supporting rotating rod 23, turn the L-shaped hand crank 27, and under the action of the synchronous gear 25 and the synchronous chain 26, multiple supporting rotating rods 23 will rotate synchronously, and then the component can be driven to move by the moving roller 24, so that the detection position of the component can be adjusted. After the adjustment is completed, release the control pull block 31, and under the action of the elastic force of the extrusion spring 32, the friction block 30 will be squeezed and pushed to move downward, and it will always be tightly attached to the outer peripheral side of the supporting rotating rod 23 to increase the friction force, effectively reducing the displacement of the component due to the self-rotation of the supporting rotating rod 23.

[0046] The fastening bolt 19 is turned, and the hollow slide bar 15 is slid up and down to adjust the position of the ultrasonic probe 2, and the servo motor 6 is started. The operation of the servo motor 6 will drive the extrusion cam 12 to rotate through the hexagonal rotating rod 5 and the rotating sleeve 11. With the cooperation of the reset spring 16, the rotation of the extrusion cam 12 will drive the ultrasonic probe 2 to move up and down through the blocking plate 14, the vertical slide bar 13, and the hollow slide bar 15 to perform ultrasonic detection on the component. At the same time, the rotation of the hexagonal rotating rod 5 will drive the horizontal screw 4 to rotate intermittently through the notched gear 20 and the connecting gear 21. The rotation of the horizontal screw 4 will drive the horizontal shift block 7 and the ultrasonic probe 2 to move horizontally, so that the ultrasonic probe 2 can automatically detect at a certain distance, thereby achieving the purpose of automatically and evenly detecting the component, saving time and effort, reducing the workload, and effectively reducing the situation where large errors in the detection results occur due to incorrect selection of the detection point position, and has good practicality.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for quality inspection of key components of an assembled structure, characterized in that: The method includes: S1. Transport the key component and place it at a designated position on the automatic detection device; the automatic detection device comprises two device bases (1) and an ultrasonic probe (2); the tops of the two device bases (1) are both equipped with vertical support plates (3); the sides of the two vertical support plates (3) close to each other are jointly rotatably equipped with horizontal screws (4) and hexagonal rotating rods (5); the side of one of the vertical support plates (3) is equipped with a motor seat; the top of the motor seat is equipped with a servo motor (6); the output end of the servo motor (6) is connected to one end of the hexagonal rotating rod (5); the hexagonal rotating rod (5) drives the horizontal screw (4) to rotate intermittently through a gear transmission unit; a horizontal moving block (7) is threadedly sleeved on the horizontal screw (4); a horizontal guide unit is installed on the horizontal moving block (7); a cross-shaped plate (8) is installed at the bottom of the horizontal moving block (7); the bottom of the cross-shaped plate (8) is symmetrically installed There are two fixed connecting rods (9), the bottom ends of the two fixed connecting rods (9) are commonly installed with a fixed transverse plate (10), the top of the fixed transverse plate (10) is provided with two vertical sliding holes, vertical sliding rods (13) are slidably installed in the two vertical sliding holes, and a blocking plate (14) is commonly installed at the top ends of the two vertical sliding rods (13), and a rotating sleeve (11) is slidably sleeved on the hexagonal rotating rod (5), and a limiting connecting rod (11) is installed on the rotating sleeve (11). The rotary sleeve (11) is sleeved with an extrusion cam (12), the top of the blocking plate (14) is fitted with the bottom of the extrusion cam (12), the blocking plate (14) is installed with an elastic reset unit, the two vertical slide bars (13) are slidably sleeved with hollow slide bars (15), the hollow slide bars (15) are installed with a fastening unit, and the ultrasonic probe (2) is installed on the bottom ends of the two hollow slide bars (15); S2. Run the automatic detection device to automatically perform ultrasonic detection on the components.

2. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: The elastic reset unit comprises a reset spring (16) sleeved on the vertical slide bar (13), and two ends of the reset spring (16) are respectively in contact with the top of the fixed horizontal plate (10) and the bottom of the blocking plate (14).

3. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: The limiting connection unit comprises two limiting connecting rods (18) symmetrically mounted on the bottom of the cross-shaped plate (8), the bottom ends of the two limiting connecting rods (18) are both mounted with limiting bearings (17), and the two limiting bearings (17) are both sleeve-mounted on the rotating sleeve (11).

4. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: The gear transmission unit comprises a notched gear (20) mounted on the end of the hexagonal rotating rod (5), and a connecting gear (21) matching the notched gear (20) is mounted on one end of the horizontal screw rod (4).

5. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: The fastening unit comprises a fastening bolt (19), a fastening screw hole is provided on the side of the hollow sliding rod (15), the fastening bolt (19) is threadedly installed in the fastening screw hole, and one end of the fastening bolt (19) is in contact with the side of the vertical sliding rod (13).

6. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: The horizontal guide unit comprises a horizontal guide rod (22) which is installed between the two vertical support plates (3), and the horizontal shift block (7) is slidably sleeved on the horizontal guide rod (22).

7. A method for quality inspection of key components of an assembled structure according to claim 1, characterized in that: A plurality of rotating holes are evenly opened on the sides of the two device bases (1), and a supporting rotating rod (23) is rotatably installed in each two corresponding rotating holes, and a movable rotating roller (24) is sleeved and installed on the plurality of supporting rotating rods (23), and a synchronous gear (25) is installed at one end of the plurality of supporting rotating rods (23), and a synchronous chain (26) is installed on the plurality of synchronous gears (25) in meshing relationship, and an L-shaped hand crank (27) is installed at the other end of one of the supporting rotating rods (23), and a resistance component is installed on one of the supporting rotating rods (23).

8. A method for quality inspection of key components of an assembled structure according to claim 7, characterized in that: The resistance assembly comprises a fixed protrusion (28) mounted on the side of one of the device bases (1); a hexagonal sliding hole is provided on the top of the fixed protrusion (28); a hexagonal sliding rod (29) is slidably mounted in the hexagonal sliding hole; a friction block (30) is mounted at the bottom end of the hexagonal sliding rod (29) and is in contact with the outer peripheral side of the supporting rotating rod (23); a control pull block (31) is mounted on the top end of the hexagonal sliding rod (29); and an elastic extrusion unit is mounted on the friction block (30).

9. A method for quality inspection of key components of an assembled structure according to claim 8, characterized in that: The elastic extrusion unit comprises an extrusion spring (32) sleeved on the hexagonal slide bar (29), and two ends of the extrusion spring (32) are respectively in contact with the bottom of the fixed protrusion (28) and the top of the friction block (30).

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