Automatic experiment device for building material detection

Abstract

The invention relates to the technical field of building material detection, and discloses an automatic experimental device for building material detection, which comprises a conveyor belt support, the upper surface of the conveyor belt support is fixedly connected with a fixed support I, the conveyor belt is arranged in the conveyor belt support, the fixed support I is internally fixedly connected with an air cylinder, and the air cylinder is fixedly connected with a fixed support II. And the output end of the air cylinder is fixedly connected with a pressing plate, the two sides of the interior of the pressing plate are rotationally connected with second connecting rods, and one end of each second connecting rod is slidably connected with a pushing rod. Through cooperative operation of components such as an air cylinder, a pressing plate, a second connecting rod and a pushing rod, building materials placed on the conveying belt can be automatically clamped, fixed and positioned to the middle of the conveying belt, and compared with a traditional manual positioning mode, the automatic positioning structure remarkably improves the accuracy and stability of positioning of the building materials; detection result errors caused by material position deviation are avoided, and a solid foundation is laid for subsequent detection.

Description

Technical Field

[0001] The invention relates to the technical field of building material detection, in particular to an automated experimental device for building material detection. Background Art

[0002] With the booming construction industry, the quality of building materials directly impacts the safety and durability of construction projects. Accurate and efficient testing of building materials has become a key component in ensuring project quality. With the continuous advancement of automation technology, the development of automated testing equipment for building material testing, which can replace traditional manual testing methods and improve efficiency and accuracy, has become an urgent need within the industry.

[0003] Currently, most common building material testing equipment on the market uses a combination of manual assistance and simple machinery. For example, in the material positioning process, building materials are usually placed on a conveyor belt manually, and then the clamp position is manually adjusted to initially fix them. In the hardness and compression resistance testing process, mechanical devices with fixed pressure are generally used to apply pressure to the material, and the pressure data is manually read to determine the material properties. The inspection of material size, shape, and surface defects mostly relies on manual observation and simple measuring tools.

[0004] However, traditional testing methods, which rely on manual placement and adjustment of building materials, are difficult to ensure consistent and accurate placement of materials due to individual differences and varying proficiency levels among operators, which can easily lead to material positioning errors. Inaccurate material positioning can affect subsequent hardness and compressive strength testing, leading to errors in test results that fail to truly reflect the actual performance of the building materials, posing a potential risk to quality control in construction projects. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an automated experimental device for building material testing, which solves the problem of traditional testing methods. When manually placing and adjusting the position of building materials, due to individual differences and different operating proficiency of operators, it is difficult to ensure the consistency and accuracy of the material placement position each time, which easily leads to material positioning deviation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated experimental device for testing building materials, comprising a conveyor belt bracket, wherein the upper surface of the conveyor belt bracket is fixedly connected to a fixed bracket 1, a conveyor belt is provided inside the conveyor belt bracket, a cylinder is fixedly connected inside the fixed bracket 1, a pressure plate is fixedly connected to the output end of the cylinder, connecting rod 2 is rotatably connected to both sides of the pressure plate, one end of the connecting rod 2 is slidably connected to a push rod, one end of the push rod is fixedly connected to a sliding sleeve, the sliding sleeve is slidably connected to the sliding rod, and a clamping assembly is provided at the bottom of the sliding rod;

[0007] The clamping assembly includes a push plate and a rubber pad. The upper surface of the push plate is fixedly connected to the bottom of the sliding rod, and the rubber pad is fixedly connected to one side of the outer wall of the push plate. The front and rear ends of the push plate are respectively rotatably connected to connecting rod 1 and connecting rod 2. One side of the outer wall of connecting rod 1 is fixedly connected to a rotating plate, and one end of connecting rod 2 is rotatably connected to the conveyor belt bracket through fixed plate 1.

[0008] Preferably, a fixing frame is fixedly connected to the middle of the upper surface of the conveyor belt bracket, a first motor is fixedly connected to the top of the fixing frame, a turntable is fixedly connected to the output end of the first motor, and a lifting assembly is provided on the outer wall of the turntable.

[0009] Preferably, the lifting assembly includes a rotating block and two first transmission rods, the outer wall of the rotating block is rotatably connected to the outer wall of the turntable, one end of the two first transmission rods is rotatably connected to the outer wall of the rotating block, a first spring is arranged between the two first transmission rods, the other ends of the two first transmission rods are rotatably connected to the second transmission rod, and one end of the second transmission rod is provided with a downward pressure test assembly.

[0010] Preferably, the downward pressure test assembly includes a fixed block and a holding block, the top of the fixed block is set at one end of the second transmission rod, the interior of the fixed block is slidably connected to a guide shaft, the holding block is fixedly connected to the bottom of the guide shaft, and the outer wall of the guide shaft is sleeved with a second spring.

[0011] Preferably, a second fixed bracket is fixedly connected to the rear side of the upper surface of the conveyor belt bracket, a top plate is fixedly connected to the top of the second fixed bracket, a camera is fixedly connected to the middle of the top plate, and an infrared sensor and a displacement sensor are fixedly connected to the inner sides of the top plate respectively.

[0012] Preferably, one end of the second spring is fixedly connected to the lower surface of the fixing block, and the other end of the second spring is fixedly connected to the upper surface of the holding block.

[0013] Preferably, a sliding block is provided on one side of the outer wall of the fixing block and slides in a sliding groove preset on one side of the inner side of the fixing frame.

[0014] Preferably, the push plate and the rubber pad are both slidably connected to the upper surface of the conveyor belt, and the middle portion of the rotating plate is rotatably connected to the conveyor belt bracket through a rotating shaft.

[0015] Preferably, the pressing plate is slidably connected to the inside of the fixed bracket 1, and a limiting groove for driving the sliding rod to move is provided inside the sliding sleeve.

[0016] Preferably, the outer wall of the second connecting rod is slidably connected to the inside of the first fixing bracket to drive the sliding sleeve to move.

[0017] The present invention provides an automated experimental device for testing building materials, which has the following beneficial effects:

[0018] 1. The present invention can automatically clamp and position the building materials placed on the conveyor belt to the middle of the conveyor belt through the coordinated operation of the cylinder, pressure plate, connecting rod 2, push rod and other components. Compared with the traditional manual positioning method, this automated positioning structure significantly improves the accuracy and stability of building material positioning, avoids errors in detection results due to material position deviation, and lays a solid foundation for subsequent detection.

[0019] 2. The present invention utilizes a downward pressure testing mechanism comprised of a first motor, a turntable, and a rotating block to drive a holding block to perform efficient and rapid downward pressure tests on building materials, accurately testing their hardness and compressive resistance. During the test, the elastic and resilient properties of the first and second springs not only improve the holding block's downward pressure efficiency but also ensure uniform and stable pressure application. Compared to traditional testing equipment, this significantly shortens the time required for a single test and significantly improves the overall effectiveness of building material testing.

[0020] 3. This invention utilizes an intelligent inspection system comprised of cameras, infrared sensors, and displacement sensors to comprehensively inspect key building material information, including size, shape, surface defects, positioning, and sample spacing. The control system integrates and analyzes the data collected by each sensor and outputs test results or performs sorting operations. This achieves intelligent and automated building material inspection, effectively reducing the subjectivity and errors inherent in manual inspections and significantly improving the accuracy and reliability of test results. This also reduces labor costs and enhances the automation and overall efficiency of the inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 This is a schematic structural diagram of one side of the fixing bracket of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the fixing bracket of the present invention;

[0024] Figure 4 This is a schematic structural diagram of one side of the fixing plate of the present invention;

[0025] Figure 5 It is a structural schematic diagram of one side of the fixing frame of the present invention;

[0026] Figure 6 This is a schematic diagram of the upper structure of the holding block of the present invention;

[0027] Figure 7 It is a schematic diagram of the upper structure of the second fixing bracket of the present invention.

[0028] Among them, 1. Conveyor belt bracket; 2. Fixed plate 1; 3. Fixed bracket 1; 4. Cylinder; 5. Conveyor belt; 6. Rotating plate; 7. Connecting rod 1; 8. Push plate; 9. Rubber pad; 10. Connecting rod 2; 11. First spring; 12. Second transmission rod; 13. Fixed block; 14. Slide groove; 15. Guide shaft; 16. Second spring; 17. Holding block; 18. Fixed bracket 2; 19. Top plate; 20. Infrared sensor; 21. Slide rod; 22. Slide sleeve; 23. Push rod; 24. Connecting rod 2; 25. Pressing plate; 26. Fixed bracket; 27. First motor; 28. Turntable; 29. Rotating block; 30. First transmission rod; 31. Displacement sensor; 32. Camera. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see the attached Figure 1 -Attached Figure 4The embodiment of the present invention provides an automated experimental device for testing building materials, including a conveyor belt support 1, and a fixed support 3 is fixedly connected to the upper surface of the conveyor belt support 1. The fixed support 3: as a metal frame structure, its internal precise positioning reference provides a reference standard for subsequent components to position the material. A conveyor belt 5 is provided inside the conveyor belt support 1. It is made of high-strength rubber material and has anti-slip textures. It not only provides a bearing platform for building materials, but also ensures that the materials do not slide during transportation. At the same time, a support plate is provided at the bottom of the conveyor belt 5 to support the building materials. The interior of the fixed support 3 is fixedly connected to a cylinder 4. The cylinder 4 is fixed to the top frame of the device through a cylinder barrel, and the piston rod drives the pressure plate 25 to move up and down, providing a power source for the entire positioning mechanism. The output end of the cylinder 4 is fixedly connected to the pressure plate 25. The pressure plate 25: a rectangular plate structure, moves downward under the drive of the cylinder 4, and its two sides are hingedly connected. The second rod 24 converts the vertical movement of the pressure plate 25 into the horizontal inward movement of the push rod 23. The inner sides of the pressure plate 25 are rotatably connected to the connecting rod 24. The connecting rod 24: a retractable connecting rod structure, which can flexibly adjust the length to realize the motion transmission and conversion between the pressure plate 25 and the push rod 23. One end of the connecting rod 24 is slidably connected to the push rod 23. The push rod 23: cylindrical and wear-resistant surface is treated. Move inward under the drive of the connecting rod 24, thereby pushing the sliding sleeve 22 to move in the fixed bracket 3. One end of the pushing rod 23 is fixedly connected to the sliding sleeve 22. The sliding sleeve 22: cylindrical and has a guide groove inside, which cooperates with the sliding rod 21 to convert the horizontal movement of the pushing rod 23 into the inward movement of the sliding rod 21. The sliding sleeve 22 is internally slidably connected to the sliding rod 21. The sliding rod 21: a solid metal rod with good rigidity, drives the push plate 8 and the rubber pad 9 to move toward the middle under the drive of the sliding sleeve 22. The bottom of the sliding rod 21 is provided with a clamping assembly;

[0032] The clamping assembly includes a push plate 8 and a rubber pad 9. The upper surface of the push plate 8 is fixedly connected to the bottom of the slide bar 21. The push plate 8 has a flat structure and a smooth surface. It is driven to move toward the middle by the slide bar 21 to clamp the building materials with the rubber pad 9. At the same time, its movement also drives the connecting rod 1 7 and the connecting rod 2 10 to move. The rubber pad 9 is fixedly connected to one side of the outer wall of the push plate 8. The rubber pad 9 is pasted on the inner side of the push plate 8. With good elasticity and friction, it can provide buffering protection when clamping building materials and ensure that the clamping is stable and does not slip. The front and rear ends of the push plate 8 are respectively rotatably connected to the connecting rod 1 7 and the connecting rod 2 10. Connecting rod 1 7 and connecting rod 2 10: articulated connecting rods, connected to relevant parts through hinges, converting the movement of push plate 8 into rotation of rotating plate 6 and its own rotation in fixed plate 1 2, realizing multi-directional transmission and conversion of motion, and finally making push plate 8 and rubber pad 9 move parallel to each other. One side of the outer wall of connecting rod 1 7 is fixedly connected with rotating plate 6. Rotating plate 6: connected to conveyor belt bracket 1 through rotating shaft, rotates up and down under the drive of connecting rod 1 7, coordinating the movement of connecting rod 2 10, ensuring parallel movement of push plate 8 and rubber pad 9. One end of connecting rod 2 10 is rotationally connected to conveyor belt bracket 1 through fixed plate 2.

[0033] Specifically, when the experimental device is needed, the building materials are first placed on top of the conveyor belt 5. The conveyor belt 5 is made of high-strength rubber and has anti-slip grooves on its surface to prevent the building materials from slipping during transportation. A motor drives the conveyor belt 5 to transport the building materials at a constant speed. When the building materials are transported below the fixed bracket 3, which is a metal frame structure with precise positioning references inside. At this point, the cylinder 4 is activated. The cylinder barrel of the cylinder 4 is fixed to the top frame of the device. The piston rod is vertically downward to connect to the pressure plate 25, driving the pressure plate 25 downward. The pressure plate 25 is a rectangular plate-shaped structure with one end of the connecting rod 24 hinged on each side. The connecting rod 24 is a retractable connecting rod structure that can adjust its length within a certain range. Next, the two sides of the pressure plate 25 drive one end of the connecting rod 24 downward, and the other end of the connecting rod 24 drives the push rods 23 on both sides inward. The push rods 23 are cylindrical rods with a wear-resistant surface. The push rod 23 drives the sliding sleeve 22 within the fixed support 1 3. The sliding sleeve 22 is cylindrical, with a pre-set guide groove inside that engages the sliding rod 21, driving the two sliding rods 21 inward. The sliding rod 21 is a solid metal rod with excellent rigidity. The sliding rod 21 then drives the push plates 8 and rubber pads 9 on both sides toward the center. The push plates 8 are flat and smooth, and the rubber pads 9 are adhered to the inside of the push plates 8, providing excellent elasticity and friction. The movement of the push plates 8 then drives the movement of the connecting rods 1 7 and one end of the connecting rod 2 10. Both connecting rods 1 7 and 2 10 are hinged links connected to the relevant components via hinges. The movement of the connecting rod 1 7 drives the rotating plate 6 to rotate up and down the conveyor support 1. The rotating plate 6 is connected to the conveyor support 1 via a rotating shaft, allowing for flexible rotation. Simultaneously, the other end of the connecting rod 2 10 rotates within the fixed plate 1 2, a metal plate fixed to the device with an internal rotation groove. As a result, the push plate 8 and the rubber pad 9 move parallel to the middle, thereby clamping and fixing the building materials, so that the building materials are positioned in the middle of the conveyor belt 5. During the entire positioning process, the movement of each component is achieved through precise mechanical transmission and structural design to ensure the accuracy and stability of positioning.

[0034] Please see the attached Figure 1 -Attached Figure 6, a fixed frame 26 is fixedly connected to the middle part of the upper surface of the conveyor belt bracket 1, and a first motor 27 is fixedly connected to the top of the fixed frame 26. The first motor 27: a high-precision servo motor can accurately control the speed and torque, provide stable and controllable power for the entire downward pressure experimental mechanism, drive the turntable 28 to rotate, and the output end of the first motor 27 is fixedly connected to the turntable 28. The turntable 28: is a circular disk with an eccentric hole on the edge. It rotates under the drive of the first motor 27, and is connected to the rotating block 29 through the eccentric hole. The rotational motion is converted into an up and down reciprocating motion of the rotating block 29. The outer wall of the turntable 28 is provided with a lifting assembly, and the lifting assembly includes a rotating block 29 and two first transmission rods 30. The rotating block 29: is connected to the eccentric hole of the turntable 28 through a pin shaft, and moves up and down as the turntable 28 rotates, thereby driving one end of the first transmission rods 30 on both sides to move up and down, and the outer wall of the rotating block 29 is rotatably connected to the outer wall of the turntable 28, and one end of the two first transmission rods 30 is rotatably connected to the outer wall of the rotating block 29. The first transmission rod 30: is tilted and The two ends are hinged, converting the up and down movement of the rotating block 29 into the inward and outward reciprocating movement of the other end of itself, while driving the first spring 11 to expand and contract, realizing the conversion of movement direction and force transmission. A first spring 11 is arranged between the two first transmission rods 30. The first spring 11: is sleeved on the first transmission rod 30, and expands and contracts when the first transmission rod 30 moves, providing elastic buffering and reset force to ensure the smoothness and reliability of the mechanism movement. The other ends of the two first transmission rods 30 are rotatably connected to the second transmission rod 12. The second transmission rod 12: is a connecting rod with adjustable length, and the length is adjusted by a threaded structure. Driven by the first transmission rod 30, the motion is transmitted to the fixed block 13. A downward pressure test assembly is provided at one end of the second transmission rod 12. The downward pressure test assembly includes a fixed block 13 and a holding block 17. The top of the fixed block 13 is set at one end of the second transmission rod 12. The internal sliding connection of the fixed block 13 is connected to the guide shaft 15. The holding block 17 is fixedly connected to the bottom of the guide shaft 15. The outer wall of the guide shaft 15 is provided with a second spring 16.

[0035] Specifically, the construction materials are conveyed to the bottom of the holding block 17 by the conveyor belt 5. The holding block 17 is a block-shaped structure with a flat bottom designed to contact and press the construction materials. The first motor 27 is started. The first motor 27 is a high-precision servo motor that can accurately control the speed and torque, driving the turntable 28 to rotate. The turntable 28 is a circular disc-shaped structure with an eccentric hole on the edge. The turntable 28 then drives the rotating block 29 to move back and forth up and down. The rotating block 29 is connected to the eccentric hole of the turntable 28 by a pin shaft and can move up and down with the rotation of the turntable 28. At this time, the rotating block 29 drives one end of the first transmission rod 30 on both sides to move up and down. The first transmission rod 30 is set in an inclined shape, and its two ends are respectively hinged to the rotating block 29 and the second transmission rod 12. It is a metal rod with a certain strength and toughness. Due to the tilted structure of the first transmission rod 30, the other ends of the two first transmission rods 30 move back and forth inward and outward as the rotating block 29 moves up and down, thereby causing the first spring 11 to expand and contract. The first spring 11 is sleeved on the first transmission rod 30, providing elastic cushioning and reset force. Furthermore, one end of the first transmission rod 30 drives one end of the second transmission rod 12 to move. The second transmission rod 12 is a connecting rod with adjustable length, and its length is adjusted by a threaded structure. The other end of the second transmission rod 12 then drives the fixed block 13 to move up and down. The fixed block 13 is a square block structure and is connected to the holding block 17 via a guide shaft 15. The guide shaft 15 is a high-strength bolt that can reliably transmit pressure. Finally, the movement of the fixed block 13 cooperates with the guide shaft 15 to drive the holding block 17 to move up and down, and a downward pressure test is performed on the building materials to test their hardness and compressive resistance. During this process, the expansion and contraction of the second spring 16 and the rebound of the first spring 11 enable the holding block 17 to press down quickly and efficiently. The second spring 16, positioned between the fixed block 13 and the device frame, further enhances the stability and cushioning effect of the downward pressure. The entire downward pressure test process, through the ingenious design of mechanical transmission and spring structure, achieves precise pressure application and efficient testing of building materials.

[0036] Please see the attached Figure 1 -Attached Figure 7The rear side of the upper surface of the conveyor belt bracket 1 is fixedly connected with a fixed bracket 2 18, and the top of the fixed bracket 2 18 is fixedly connected with a top plate 19, a horizontal metal plate, which provides an installation platform for the camera 32, the infrared sensor 20 and the displacement sensor 31 to ensure that each sensor is in a suitable detection position. The middle of the top plate 19 is fixedly connected with a camera 32, a high-definition industrial camera, which can clearly capture the entire picture of building materials with its high resolution and wide viewing angle, and detect and analyze the size, shape and surface defects of the sample through visual recognition algorithms. The infrared sensor 20 and the displacement sensor 31 are fixedly connected on both sides of the interior of the top plate 19. The infrared sensor 20: is paired and adopts a beam design to detect whether the sample is accurately positioned in real time, and the detection signal is fed back to the control system so that the sample position can be adjusted in time to ensure the detection accuracy and displacement. Sensor 31: High-precision laser displacement sensor 31, which accurately measures the sample spacing, provides data support for the subsequent detection of centering accuracy, and ensures the accuracy and consistency of the detection process. One end of the second spring 16 is fixedly connected to the lower surface of the fixed block 13, and the other end of the second spring 16 is fixedly connected to the upper surface of the holding block 17. A sliding block is provided on one side of the outer wall of the fixed block 13 and slides in a preset slide groove 14 on one side of the inner side of the fixed frame 26. The push plate 8 and the rubber pad 9 are both slidably connected to the upper surface of the conveyor belt 5. The middle part of the rotating plate 6 is rotatably connected to the conveyor belt bracket 1 through the rotating shaft. The pressure plate 25 is slidably connected to the inside of the fixed bracket 3. A limiting groove for driving the slide rod 21 to move is provided inside the sliding sleeve 22. The outer wall of the connecting rod 24 is slidably connected to the inside of the fixed bracket 3 to drive the sliding sleeve 22 to move.

[0037] Specifically, a conveyor belt 5 transports building materials to the bottom of a roof panel 19, a horizontal metal plate on which detection sensors are mounted. A camera 32 is mounted in the center of the bottom of the roof panel 19. This high-definition industrial camera, with high resolution and a wide viewing angle, can clearly capture the entire building material. Using a visual recognition algorithm, it can determine the sample's size, shape, and surface defects. Infrared sensors 20 are paired on either side of the roof panel 19. These sensors utilize a beam-through design, detecting whether the sample is accurately positioned and providing feedback to the control system for position adjustment. A displacement sensor 31, a high-precision laser displacement sensor, is mounted at a specific location on the roof panel 19. It precisely measures the distance between samples, ensuring alignment accuracy during subsequent testing. Finally, the control system collects detection data from the camera 32, infrared sensor 20, and displacement sensor 31 through a data acquisition module. Using a built-in algorithm, it integrates and analyzes the data, outputting detection results or performing sorting operations based on pre-set rules. The entire detection process is automated and intelligent, effectively improving detection accuracy and efficiency.

[0038] Working principle: When the experimental device is needed, the building materials are first placed on the conveyor belt 5, and then transported through the conveyor belt 5. When the building materials are transported to the bottom of the fixed bracket 3, the cylinder 4 is first started to drive the pressure plate 25 to move downward, and then the two sides of the pressure plate 25 drive one end of the connecting rod 24 to move downward, and then the other end of the connecting rod 24 drives the push rods 23 on both sides to move inward, so that the push rod 23 drives the sliding sleeve 22 to move inside the fixed bracket 3, and then the sliding sleeve 22 is driven to move inside the fixed bracket 3. The guide grooves preset in the upper part drive the slide bars 21 on both sides to move inward. At this time, the slide bars 21 drive the push plates 8 and the rubber pads 9 on both sides to move to the middle. The movement of the push plate 8 drives the connecting rod 1 7 and one end of the connecting rod 2 10 to move. The movement of the connecting rod 1 7 drives the rotating plate 6 to rotate up and down on the conveyor belt bracket 1. At the same time, the other end of the connecting rod 2 10 rotates inside the fixed plate 1 2, so that the push plate 8 and the rubber pad 9 move parallel to the middle, thereby clamping and fixing the building materials, so that the building materials are positioned in the middle of the conveyor belt 5.

[0039] In addition, the building materials are transported to the bottom of the holding block 17 through the conveyor belt 5, and then the first motor 27 is started to drive the turntable 28 to rotate, and then the turntable 28 drives the rotating block 29 to move up and down. At this time, the rotating block 29 drives one end of the first transmission rods 30 on both sides to move up and down. Since the first transmission rods 30 are arranged in an inclined shape, the other ends of the two first transmission rods 30 move back and forth in and out with the up and down movement of the rotating block 29, thereby causing the first spring 11 to expand and contract, and then one end of the second transmission rod 12 is driven to move through one end of the first transmission rod 30, and then the other end of the second transmission rod 12 drives the fixed block 13 to move up and down, and finally, the movement of the fixed block 13 cooperates with the guide shaft 15 to drive the holding block 17 to move up and down, and a downward pressure test is carried out on the building materials to test the hardness and pressure resistance of the building materials. In this process, the second spring 16 and the first spring 11 are stretched and rebounded, so that the holding block 17 is efficiently and quickly pressed down;

[0040] Finally, the building materials are transported to the bottom of the top plate 19 via the conveyor belt 5. The camera 32 performs visual recognition to determine the sample size, shape and surface defects. The infrared sensor 20 detects whether the sample is accurately positioned and feeds back an adjustment signal. The displacement sensor 31 measures the sample spacing to ensure the centering accuracy of subsequent inspections. Finally, the control system integrates the data and outputs the inspection results or performs sorting operations.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automated experimental device for testing building materials, comprising a conveyor belt support (1), characterized in that: The upper surface of the conveyor belt bracket (1) is fixedly connected to a fixed bracket 1 (3), a conveyor belt (5) is arranged inside the conveyor belt bracket (1), the interior of the fixed bracket 1 (3) is fixedly connected to a cylinder (4), the output end of the cylinder (4) is fixedly connected to a pressure plate (25), both sides of the interior of the pressure plate (25) are rotatably connected to a connecting rod 2 (24), one end of the connecting rod 2 (24) is slidably connected to a push rod (23), one end of the push rod (23) is fixedly connected to a sliding sleeve (22), the interior of the sliding sleeve (22) is slidably connected to a sliding rod (21), and a clamping assembly is arranged at the bottom of the sliding rod (21); The clamping assembly includes a push plate (8) and a rubber pad (9), the upper surface of the push plate (8) is fixedly connected to the bottom of the slide rod (21), the rubber pad (9) is fixedly connected to one side of the outer wall of the push plate (8), the front and rear ends of the push plate (8) are rotatably connected to a connecting rod 1 (7) and a connecting rod 2 (10), the outer wall of the connecting rod 1 (7) is fixedly connected to a rotating plate (6), and one end of the connecting rod 2 (10) is rotatably connected to the conveyor belt bracket (1) through a fixed plate 1 (2).

2. The automated experimental device for building material testing according to claim 1, characterized in that: A fixing frame (26) is fixedly connected to the middle of the upper surface of the conveyor belt support (1), a first motor (27) is fixedly connected to the top of the fixing frame (26), a turntable (28) is fixedly connected to the output end of the first motor (27), and a lifting assembly is provided on the outer wall of the turntable (28).

3. The automated experimental device for building material testing according to claim 2, characterized in that: The lifting assembly includes a rotating block (29) and two first transmission rods (30), the outer wall of the rotating block (29) is rotatably connected to the outer wall of the turntable (28), one end of the two first transmission rods (30) is rotatably connected to the outer wall of the rotating block (29), a first spring (11) is provided between the two first transmission rods (30), the other ends of the two first transmission rods (30) are both rotatably connected to the second transmission rod (12), and one end of the second transmission rod (12) is provided with a downward pressure test assembly.

4. The automated experimental device for building material testing according to claim 3, characterized in that: The downward pressure test assembly includes a fixed block (13) and a holding block (17), the top of the fixed block (13) is arranged at one end of the second transmission rod (12), the interior of the fixed block (13) is slidably connected to a guide shaft (15), the holding block (17) is fixedly connected to the bottom of the guide shaft (15), and the outer wall of the guide shaft (15) is provided with a second spring (16).

5. The automated experimental device for building material testing according to claim 4, characterized in that: A second fixed bracket (18) is fixedly connected to the rear side of the upper surface of the conveyor belt bracket (1), a top plate (19) is fixedly connected to the top of the second fixed bracket (18), a camera (32) is fixedly connected to the middle of the top plate (19), and an infrared sensor (20) and a displacement sensor (31) are fixedly connected to the inner sides of the top plate (19), respectively.

6. The automated experimental device for building material testing according to claim 4, characterized in that: One end of the second spring (16) is fixedly connected to the lower surface of the fixing block (13), and the other end of the second spring (16) is fixedly connected to the upper surface of the holding block (17).

7. The automated experimental device for building material testing according to claim 6, characterized in that: A sliding block is provided on one side of the outer wall of the fixed block (13) and slides in a sliding groove (14) preset on one side of the interior of the fixed frame (26).

8. The automated experimental device for building material testing according to claim 1, characterized in that: The push plate (8) and the rubber pad (9) are both slidably connected to the upper surface of the conveyor belt (5), and the middle part of the rotating plate (6) is rotatably connected to the conveyor belt bracket (1) through a rotating shaft.

9. The automated experimental device for building material testing according to claim 1, characterized in that: The pressing plate (25) is slidably connected to the interior of the fixed bracket (3), and a limiting groove for driving the sliding rod (21) to move is provided inside the sliding sleeve (22).

10. The automated experimental device for building material testing according to claim 1, characterized in that: The outer wall of the second connecting rod (24) is slidably connected to the interior of the first fixed bracket (3) to drive the sliding sleeve (22) to move.

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