Composite external wall panel shock resistance testing device and sample testing method

Abstract

The invention relates to the technical field of building material product detection, in particular to a composite external wall panel impact resistance testing device and a sample testing method.The composite external wall panel impact resistance testing device comprises a sample supporting mechanism, a sample impact mechanism, a sample moving, loading and unloading mechanism and a measuring and positioning mechanism; the sample supporting mechanism comprises two reinforced concrete walls which are vertically fixed on the terrace B, are parallel to each other and are arranged at an interval, the top end of each wall is fixedly provided with a square timber ridge support along the length direction of the wall, and the top ends of the two square timber ridge supports have the same height and are parallel to each other. All automation of sample installation, measurement, impact, visual inspection and test result judgment can be achieved, and the purpose of improving the test quality and efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building material product testing, and in particular to a composite exterior wall panel impact resistance testing device and a sample testing method. Background Art

[0002] Composite exterior wall panels refer to glass fiber reinforced cement (GRC) composite exterior wall panels. GRC is a composite material composed of cement, sand, alkali-resistant glass fiber and water. Glass fiber has a significant strengthening and toughening effect on cement mortar, which can greatly improve the tensile performance, bending performance and impact resistance of mortar. The impact performance of GRC composite exterior wall panels is tested by using a canvas bag with a diameter of 200mm and a height of 400mm, which is filled with dry medium sand with a total mass of (10±0.05) kg. The bottom of the "sand bag" is 500mm away from the middle of the composite exterior wall panel and falls vertically. The impact performance test of GRC composite exterior wall panel is a whole board, with one wall panel facing up on the outside and one wall panel facing up on the inside. The impact performance test is carried out separately. The GRC composite exterior wall panel sample is horizontally supported on two square wooden edges with a spacing of 1800mm. The outer side of the wall panel is impacted 5 times, and the inner side of the wall panel is impacted 3 times. The board surface is visually inspected for cracks and other damage. During the impact test, since the GRC composite exterior wall panel impact resistance specimen is a whole board with a large weight and volume, loading and unloading the composite exterior wall panel specimen consumes a lot of manpower and material resources. Before each impact, manual handheld measuring tools are required to measure and adjust the distance between the bottom of the "sand bag" and the composite exterior wall panel for multiple times. During and after the test, manual visual inspection is performed to check whether there are cracks or other damage on the board surface. There are also misjudgment and human interference factors, so the test quality and efficiency are not high. There is currently no suitable solution device and method for this. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a composite exterior wall panel impact resistance test device and a sample testing method, which can realize full automation of sample installation, measurement, impact, visual inspection, and test result determination, thereby achieving the purpose of improving test quality and efficiency.

[0004] The present invention is achieved through the following technical solutions: Provided is a composite exterior wall panel impact resistance test device, comprising a sample support mechanism, a sample impact mechanism, a sample moving and loading mechanism, and a measurement and positioning mechanism. The specimen support mechanism includes two reinforced concrete walls vertically fixed on the floor B and parallel to each other and spaced apart. A wooden edge support is fixed to the top of each wall along the length of the wall. The tops of the two wooden edge supports are at the same height and parallel to each other. The sample impact mechanism includes an electric hoist B installed directly above the sample support mechanism and a vertical fixed rod located on one side of the electric hoist B. The end of the steel wire rope B of the electric hoist B is connected to the sand bag through a flexible nylon rope. A horizontal rod is arranged at the lower end of the vertical fixed rod. An electric clamp located directly below the electric hoist B and capable of controlling the clamping or releasing of the flexible nylon rope is installed at the end of the horizontal rod. A laser displacement sensor is installed on the bottom surface of the horizontal rod. The specimen moving and loading and unloading mechanism includes a lateral displacement mechanism, which includes two guide rails A installed on the floor B at both ends of the wall in the length direction and parallel to each other, a strip A is slidably installed on each guide rail A through a hub servo motor A, and servo electric cylinders A are vertically installed on both ends of the surface of each strip A, and a push-up support plate is connected between the telescopic ends A of the two servo electric cylinders A at the ends of the same side of the two plates A, and the two push-up support plates are parallel to the square wood edge support and the distance between the two push-up support plates is greater than the distance between the outer sides of the two walls; The measuring and positioning mechanism includes columns A, B, C and D. Column A is arranged on one side of one of the guide rails A and is located on the center line of the distance between the two square wood edges. A servo electric cylinder C is vertically installed on the top surface of column A. The telescopic end C of the servo electric cylinder C is installed with a monitoring camera B with an electric control pan-tilt platform and a laser marking instrument B through a square support plate B. Column B is arranged on the left side of the sample support mechanism and is located on the width center line of the two guide rails A. Two servo electric cylinders H are arranged on the top surface of column B at intervals. A telescopic end H of the two servo electric cylinders H is connected between them. Grating receiving end, a grating emitting end parallel to the grating receiving end and in the same horizontal plane is equidistantly arranged on the right side of the sample support mechanism. The grating emitting end is suspended by two suspension rods, and the tops of the two suspension rods are respectively connected to the telescopic ends E of the vertically arranged servo electric cylinder E; a servo electric cylinder J is vertically installed on the column B through a support frame, and a monitoring camera A with an electric-controlled pan-tilt platform and a laser marking instrument A are installed on the telescopic end J of the servo electric cylinder J through a square support plate A. The lasers of the laser marking instrument A and the laser marking instrument B form a cross light, and the intersection is located directly below the sand bag; The column C is arranged opposite to the column A and the connecting line of the two columns is parallel to the guide rail A. A servo electric cylinder F is vertically installed on the top surface of the column C. A monitoring camera C with an electric pan-tilt head and a laser marking instrument C are installed on the telescopic end F of the servo electric cylinder F through a square support plate C; Column D is arranged on the extension line of the center line of the two guide rails A and is arranged opposite to column B. A servo electric cylinder G is vertically installed on the top surface of column D. A monitoring camera D with an electric pan-tilt head and a laser marking instrument D are installed on the telescopic end G of the servo electric cylinder G through a square support plate D. The laser marking instrument D and the laser marking instrument A are in the same vertical plane. The lasers of the laser marking instrument D and the laser marking instrument C form a cross light, and the intersection is used to locate the position of the sample.

[0005] Furthermore, a horizontal tray is provided between the two parallel reinforced concrete walls, and a monitoring camera E with an electric-controlled pan-tilt platform is provided in the middle of each of the four sides of the horizontal tray. A servo electric cylinder B is vertically connected between the bottom surface of the horizontal tray and the corresponding surface of the strip A.

[0006] Furthermore, the sample moving mechanism also includes a lifting mechanism, which includes a crane whose traveling direction is perpendicular to the guide rail A, a guide rail C perpendicular to the traveling direction of the crane is fixed to the bottom surface of the crane, a U-shaped plate driven by a servo motor A is slidably connected to the guide rail C, an electric hoist A is installed at the bottom of the U-shaped plate, and a hook is installed on the wire rope A of the electric hoist A through a movable pulley.

[0007] Furthermore, a servo electric cylinder E is installed horizontally above the electric clamp on the vertical fixing rod, and the telescopic end of the servo electric cylinder E is connected to an inclined plate that can be used to push the flexible nylon rope to slide down.

[0008] By installing the servo electric cylinder D on the vertical fixed rod, the servo electric cylinder D works, and its telescopic end D extends a distance, causing the falling flexible thin nylon rope to slide down the inclined plate for a distance greater than the falling distance of the sandbag. After that, the electric hoist B stops working, and the telescopic end D of the servo electric cylinder D returns to the position before starting. The purpose of this is to ensure that the electric clamp and the two parallel claws will not hinder the downward movement of the flexible thin nylon rope when the sandbag falls. When the electric clamp works in the reverse direction, the two parallel claws move away from each other, and the sandbag and the flexible thin nylon rope fall freely.

[0009] Furthermore, each guide rail A is provided with two wheel hub servo motors A, the wheel hub of the wheel hub servo motor A is rollingly matched with the guide rail A, an axis frame is installed on the axis A of the wheel hub servo motor A, and the two axis frames A on the same guide rail A are respectively fixed to the two ends of the bottom surface of the strip A by bolts.

[0010] The hub servo motor A on the guide rail A can utilize the rolling cooperation between the hub and the guide rail A, and at the same time utilize the shaft frame to connect the strip plate A to form a lateral displacement mechanism, thereby driving the sample to move laterally.

[0011] Furthermore, it also includes a display PLC controller which is electrically connected to the sample impact mechanism, the sample moving and loading mechanism and the measuring and positioning mechanism and is used to coordinate and control the operation of each mechanism. The display PLC controller is provided with a test preparation button, a test installation button and a test start button.

[0012] The display PLC controller can be used to coordinate and control the operation of each component in the sample impact mechanism, sample moving and loading and unloading mechanism, and measurement and positioning mechanism, and can realize the automated operation of test installation, measurement, impact, inspection and result judgment.

[0013] Furthermore, floor B is the bottom surface of the installation groove arranged on floor A, and the transport vehicle carrying the sample is parked on floor A.

[0014] By installing the device as a whole on the floor B at the bottom of the installation groove of the floor A, it is convenient for sample loading and unloading and measurement and monitoring, and it helps to ensure the safety of the impact test.

[0015] Furthermore, the column C is arranged at 1 / 2 of the length direction of the strip A when the lateral displacement mechanism moves to the rightmost end of the guide rail A.

[0016] By determining the position of column C, it is helpful to locate the position of the sample and ensure that the sample maintains the correct position before lifting, thereby achieving the accuracy of the impact test, and is used to ensure the consistency of the position of the sample during lifting and impact, thereby improving the accuracy of the test.

[0017] Furthermore, both ends of the guide rail A are respectively provided with limit plates for limiting the lateral displacement mechanism from detaching from the guide rail A.

[0018] By setting limit plates at both ends of the guide rail A, a limit function is played, so that the two ends of the lateral displacement mechanism cannot be separated from the guide rail A when moving on the guide rail A, thereby ensuring the stability of the movement of the lateral displacement mechanism.

[0019] A sample testing method of a composite exterior wall panel impact resistance testing device comprises the following steps: S1. The test personnel draw a cross center line on the impacted surface of the specimen, and drive the vehicle carrying the specimen 5 from the floor A to the bottom of the hook of the electric hoist A on the crane. The test personnel control the crane and the electric hoist A to make the "cross center line" drawn on the impacted surface of the specimen coincide with the cross lines marked by the laser marking instrument C and the laser marking instrument D, and control the electric hoist A to drop the specimen vertically onto the two lifting pallets, remove the hanging rope hanging on the specimen, and drive the specimen to move left to the bottom of the impact mechanism through the lateral displacement mechanism; S2. After the "cross center line" drawn on the impact surface of the sample coincides with the cross marks made by the laser marking instrument A and the laser marking instrument B, the four wheel hub servo motors A stop working, and the four servo electric cylinders A and the four multi-section servo electric cylinders B are controlled to control the sample to fall on the two wooden edge supports. The distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is adjusted. The distance from the bottom of the sandbag to the upper surface of the sample is measured by the laser displacement sensor. The actual distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is calculated. The two servo electric cylinders E and the two servo electric cylinders H are controlled to adjust the distance from the horizontal light to the upper surface of the sample, and the electric hoist B is controlled to move the connecting ring upward. When the loose When the relaxed flexible thin nylon rope tends to straighten, the electric hoist B is controlled to stop working and the electric clamp is controlled to work. The two parallel jaws move back to back, and the stressed section of the flexible nylon rope held is dropped along with the suspended sand bag for a distance. The electric hoist B is controlled to work to move the sand bag upward. When the bottom surface of the sand bag is flush with the horizontal light, the electric hoist B is controlled to stop working, and the electric clamp is controlled to hold the flexible thin nylon rope for hanging the sand bag. The electric hoist B is controlled to work to move the connecting ring downward, and at the same time, the servo electric cylinder D works to make the relaxed section of the falling flexible thin nylon rope slide down the inclined plate for a length longer than the falling height of the sand belt. The electric hoist B stops working and the servo electric cylinder D returns to its reverse position, and the electric clamp is controlled to open the sand bag to freely fall and impact the intersection of the cross center line of the surface of the sample; S3. Repeat step S2 and impact repeatedly. During the impact process and after the impact times, the electronically controlled pan-tilt monitoring cameras A and B collect images of whether there is cracking or damage on the upper surface of the sample in real time. Electronically controlled pan-tilt monitoring cameras E are installed on each of the four sides of the horizontal tray to collect images of whether there is cracking or damage on the lower surface of the sample during the impact test. The impact test results are judged by observing the image data.

[0020] Beneficial effects of the present invention: The present invention respectively provides a sample supporting mechanism, a sample impact mechanism, a sample moving and loading and unloading mechanism, and a measuring and positioning mechanism, and utilizes a display PLC controller to realize the coordinated operation of each mechanism, thereby realizing automated operations of test loading and unloading, movement, impact, measurement, and test structure determination. Compared with traditional manual operations, the present invention reduces labor intensity, saves manpower, improves safety, and simultaneously improves measurement accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main sectional view of the present invention.

[0022] Figure 2 yes Figure 1 BB section top view.

[0023] Figure 3 yes Figure 1 CC section side view.

[0024] Figure 4 yes Figure 1 middle Enlarged view of the part.

[0025] Figure 5 This is a diagram of the state in which the "specimen" will be placed on or off the square timber edge support.

[0026] Figure 6 This is the diagram of the height adjustment status of the "sand bag" before the test.

[0027] Figure 7 This is a diagram of the "specimen" being placed on the lifting pallet.

[0028] Figure 8 yes Figure 7 Middle DD section top view.

[0029] Fig. 9 This is a diagram of the state of “sand bag” impacting “specimen”.

[0030] Fig.10 This is the state diagram when the "sand bag" is 500mm away from the "sample".

[0031] Fig.11 It is the electrical control schematic.

[0032] In the figure: 1 floor B, 2 limit plate, 3 guide rail A, 4 pressure plate, 5 sample, 6 lifting plate, 7 strip plate A, 8 hub servo motor A, 9 shaft A, 10 shaft frame A, 11 servo electric cylinder A, 12 telescopic end A, 13 horizontal tray, 14 multi-section servo electric cylinder B, 15 telescopic end B, 16 column A, 17 square wood edge support, 18 reinforced concrete wall, 19 column B, 20 side, 21 servo electric cylinder C, 22 telescopic end C, 23 square plate B, 24 with electric pan-tilt monitor Control camera B, 25 laser marking instrument B, 26 sandbag, 27 flexible nylon rope force section, 28 two parallel claws, 29 electric clamp, 30 reinforcement rib, 31 telescopic end D, 32 servo electric cylinder D, 33 tilting plate, 34 vertical fixing rod, 35 indoor top plate, 36 electric hoist B, 37 wire rope B, 38 connecting ring, 39 flexible thin nylon rope, 40 light, 41 grating emission end, 42 floor A, 43 suspension rod, 44 hook, 45 lifting ring, 46 telescopic end E, 47 servo Electric cylinder E, 48 guide rail B, 49 hub servo motor B, 50 shaft seat, 51 shaft B, 52 guide rail C, 53 roller, 54 electric hoist A, 55 U-shaped plate, 56 servo motor A, 57 wire rope A, 58 movable pulley, 59 hook, 60 laser marking instrument C, 61 with electric control pan-tilt monitoring camera C, 62 square pallet C, 63 telescopic end F, 64 servo electric cylinder F, 65 column C, 66 column D, 67 servo electric cylinder G, 68 telescopic end G, 69 square pallet D, 70 surveillance camera D with electric pan / tilt, 71 laser marking instrument D, 72 remote control, 73 display PLC controller, 74 grating receiving end, 75 support rod, 76 telescopic end H, 77 servo electric cylinder H, 78 laser marking instrument A, 79 surveillance camera A with electric pan / tilt, 80 square pallet A, 81 telescopic end J, 82 servo electric cylinder J, 83 tripod, 84 hanging rope, 85 laser displacement sensor, 86 surveillance camera E with electric pan / tilt, 87 wire rope movement limit device. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0034] A composite exterior wall panel impact resistance test device is installed on the floor B1 and the roof above the floor B1. The floor B1 is the bottom surface of the installation groove set on the floor A42, and the transport vehicle carrying the sample is parked on the floor A42. The floor B1 is 700mm lower than the floor A42, which is set to facilitate the loading and unloading of the sample 5 and the measurement and monitoring and impact test safety.

[0035] The experimental device specifically includes a sample support mechanism, a sample impact mechanism, a sample moving and loading mechanism, and a measurement and positioning mechanism. It also includes a display PLC controller 73 that is electrically connected to the sample impact mechanism, the sample moving and loading mechanism, and the measurement and positioning mechanism and is used to coordinate and control the operation of each mechanism. The display PLC controller 73 is provided with a test preparation button, a test installation button, and a test start button.

[0036] The specimen support mechanism includes two reinforced concrete walls 18 vertically fixed on the floor B1 and parallel to each other and spaced apart. A square wooden edge support 17 with a cross-section of 50mm×50mm and a length greater than the width of the specimen 5 is fixed at the top of each reinforced concrete wall 18. A square wooden edge support 17 is fixed at the top of each wall 18 along the length direction of the wall 18. The tops of the two square wooden edge supports 17 are at the same height and parallel to each other. A horizontal tray 13 is provided between the two parallel reinforced concrete walls 18. A monitoring camera E86 with an electric control pan-tilt platform is provided in the middle of each of the four sides of the horizontal tray 13. A servo electric cylinder B is vertically connected between the bottom surface of the horizontal tray 13 and the corresponding surface of the strip board A7. The horizontal tray 13 is used to receive the falling dust and fragments of the test sample 5 when it is impacted by the sandbag 26. On the horizontal cross center line of the horizontal tray 13, that is, in the middle of the four sides of the horizontal tray 13, a monitoring camera E86 with an electric control pan-tilt is provided. The four monitoring cameras E86 with an electric control pan-tilt are used to monitor whether there is any cracking or damage on the lower surface of the test sample 5 when it is impacted by the sandbag 26.

[0037] The sample impact mechanism includes an electric hoist B36 installed just above the sample support mechanism and a vertical fixed rod 34 located on one side of the electric hoist B36. The electric hoist B36 is installed at the top plate 35 in the house just above the intersection of the center lines of the two wooden edge supports 17 and the center lines of the two guide rails A3. The end of the steel wire rope B37 of the electric hoist B36 is connected to the sandbag 26 through a flexible nylon rope 39. The lower end of the vertical fixed rod 34 is connected to the horizontal rod through a reinforcing rib 30. The end of the horizontal rod is installed with an electric clamp 29 located just below the electric hoist B36 and can control the clamping or loosening of the flexible nylon rope 39. The two parallel claws 28 on the electric clamp 29 are attached with damping elastic pads on the opposite inner sides. A laser displacement sensor 85 is installed on the bottom surface of the horizontal rod. The laser displacement sensor 85 is used to calculate and determine the distance between the bottom surface of the sandbag 26 and the upper surface of the sample 5.

[0038] The outlet of the wire rope B37 on the electric hoist B36 is provided with a wire rope movement limit device 87, the lower end of the wire rope B37 is provided with a connecting ring 38, the connecting ring 38 is tied with a flexible thin nylon rope 39, the lower end of the flexible thin nylon rope 39 is tied with a sand bag 26, the sand bag 26 is made of canvas, the bottom diameter is 200mm and the height is 400mm, and it is filled with dry medium sand. The total mass of the sand and the sand bag is (10±0.05) kg, and the vertical center line of the sand bag 26 passes through the intersection of the center lines of the two square wooden edge supports 17 and the center lines of the two guide rails A3 in a top-down projection.

[0039] A servo electric cylinder D32 is installed horizontally on the vertical fixing rod 34 above the electric clamping claw 29, and the telescopic end D31 of the servo electric cylinder D32 is connected to an inclined plate 33 that can be used to push the flexible nylon rope 39 to slide down.

[0040] When the electric hoist B36 is working, the steel wire rope B37 is connected to the flexible thin nylon rope 39 through the connecting ring 38 and the sand bag 26 is lifted to the specified height, the electric hoist B36 stops working. At this time, the flexible thin nylon rope 39 is located in the middle position of the two parallel claws 28 relative to the inside. The electric clamp 29 works forward and the two parallel claws 28 are close to hold the flexible thin nylon rope 39 hanging the sand bag 26. After that, the electric hoist B36 works in the reverse direction to move the steel wire rope B37 downward. During the downward movement of the steel wire rope B37, the servo electric cylinder D32 works, the telescopic end D31 extends a distance, and the falling flexible thin nylon rope 39 slides down the inclined plate 33 for a distance greater than the falling distance of the sand bag 26. After that, the electric hoist B36 stops working, and the telescopic end D31 of the servo electric cylinder D32 returns to the position before starting. The purpose of this is to ensure that the electric clamp 29 and the two parallel claws 28 will not hinder the downward movement of the flexible thin nylon rope 39 when the sand bag 26 falls. See attached Figure 1 and attached Fig. 9 When the electric clamp 29 works in reverse, the two parallel claws 28 move away from each other, and the sandbag 26 and the flexible thin nylon rope 39 fall freely. In this way, the steel wire rope B37 has no effect on the quality and free fall of the sandbag 26.

[0041] The specimen moving and loading and unloading mechanism includes a lateral displacement mechanism, which includes two guide rails A3 installed on the floor B1 at both ends of the wall 18 in the length direction and parallel to each other. The guide rails A3 are perpendicular to the top projection of the square wood edge support 17, and the two ends of the guide rails A3 are respectively provided with limit plates 2 for limiting the lateral displacement mechanism from being separated from the guide rails A3. A strip A7 is slidably installed on each guide rail A3 through a hub servo motor A8, and two hub servo motors A8 are provided on each guide rail A3. The hub of the hub servo motor A8 is in rolling cooperation with the guide rail A3, and an axis frame A10 is installed on the axis A9 of the hub servo motor A8. The two axis frames A10 on the same guide rail A3 are respectively fixed to the two ends of the bottom surface of the strip A7 by bolts. Servo electric cylinders A11 are vertically installed at both ends of the surface of each strip A7, and a push-up support plate 6 is connected between the telescopic ends A12 of the two servo electric cylinders A11 at the same side ends of the two strips A7. The two push-up support plates 6 are parallel to the square wood edge support 17 and the distance between the two push-up support plates 6 is greater than the distance between the outer sides of the two walls 18.

[0042] The sample moving mechanism also includes a lifting mechanism, which includes a crane whose traveling direction is perpendicular to the guide rail A3, a guide rail C52 perpendicular to the traveling direction of the crane is fixed on the bottom surface of the crane, a U-shaped plate 55 driven by a servo motor A56 is slidably connected to the guide rail C52, an electric hoist A54 is installed at the bottom of the U-shaped plate 55, and a hook 59 is installed on the wire rope A57 of the electric hoist A54 through a movable pulley 58. After installing the hanging rope 84, the crane lifts the sample 5, wherein the two longitudinal guide rails B48 of the crane are fixed to the lower surface of the indoor ceiling 35 by bolts, and the two parallel guide rails B48 have two hub servo motors B49 on the opposite inner sides, and fixed shaft seats 50 are respectively arranged on both sides of the shaft 51, and the lower surfaces of the two shaft seats 50 jointly fix the guide rail C52, and the guide rail C52 and the guide rail B48 are perpendicular to each other when viewed from above, and two rollers 53 are respectively installed on both sides of the guide rail C52, and the shafts of the rollers 53 on both sides are respectively fixed on the U-shaped plate 55, and the servo motor A56 is fixed on the outside of the U-shaped plate 55, and the servo motor A56 drives the rollers 53 to move on the guide rail C52 through the speed change mechanism, and the lower end of the U-shaped plate 55 is equipped with an electric hoist A54, and a movable pulley 58 is arranged on the wire rope A57, and a hook 59 is installed on the movable pulley 58, and the hook 59 lifts the sample 5 through the hanging rope 84. See attached Figure 7 .

[0043] The measuring and positioning mechanism includes column A16, column B19, column C65 and column D66. Column A16 is arranged on one side of one of the guide rails A3 and is located on the center line of the distance between the two square wooden edge supports 17. A servo electric cylinder C21 is vertically installed on the top surface of the column A16. The telescopic end C22 of the servo electric cylinder C21 is installed with an electric-controlled pan-tilt monitoring camera B24 and a laser marking instrument B25 through a square support plate B23.

[0044] The column B19 is arranged on the left side of the sample support mechanism and located on the width center line of the two guide rails A3. Two servo electric cylinders H77 are arranged at intervals on the top surface of the column B19. A grating receiving end 74 is connected between the telescopic ends H76 of the two servo electric cylinders H77. A grating emitting end 41 is arranged equidistantly on the right side of the sample support mechanism, parallel to the grating receiving end 74 and in the same horizontal plane. The grating emitting end 41 is suspended by two suspension rods 43, and the top ends of the two suspension rods 43 are respectively connected to the telescopic ends E46 of the vertically arranged servo electric cylinder E47; a servo electric cylinder J72 is vertically installed on the column B19 through a support frame, and a monitoring camera A79 with an electric-controlled pan-tilt head and a laser marking instrument A78 are installed on the telescopic end J81 of the servo electric cylinder J82 through a square support plate A80. The laser of the laser marking instrument A78 and the laser marking instrument B25 form a cross light, and the intersection is located directly below the sand bag. The two servo electric cylinders H77 and the two servo electric cylinders E47 can control the horizontal height of the grating receiving end 74 and the grating emitting end 41, so that the height of the horizontal light 40 emitted by the grating emitting end 41 can be adjusted to adapt to the change of the thickness of the sample 5. The cross light and the intersection point formed by the laser marking instrument B25 and the laser marking instrument A78 coincide with the cross light and the intersection point of the top projection of the center line of the two square wooden edge supports 17 and the center line of the two guide rails A3. The cross intersection point is also the intersection point of the vertical center line of the sandbag 26. See the attached Figure 1 and attached Figure 2 .

[0045] The column C65 is arranged opposite to the column A16 and the connecting line of the two columns is parallel to the guide rail A3. The column C65 is arranged at 1 / 2 of the length direction of the strip A7 when the lateral displacement mechanism moves to the rightmost end of the guide rail A3. A servo electric cylinder F64 is vertically installed on the top surface of the column C65. The telescopic end F63 of the servo electric cylinder F64 is installed with a monitoring camera C61 with an electric pan-tilt head and a laser marking instrument C60 through a square support plate C62.

[0046] Column D66 is arranged on the extension line of the center line of the two guide rails A3 and is arranged opposite to column B19. A servo electric cylinder G67 is vertically installed on the top surface of column D66. The telescopic end G68 of the servo electric cylinder G67 is installed with an electric pan-tilt monitoring camera D70 and a laser marking instrument D71 through a square support plate D69. The laser marking instrument D71 and the laser marking instrument A78 are in the same vertical plane. The lasers of the laser marking instrument D71 and the laser marking instrument C60 form a cross light, and the intersection is used to locate the position of the sample 5.

[0047] Attached Figure 1This is a diagram of the state of the specimen 5 after installation and waiting for impact or impact test. After the impact test is completed, the four servo electric cylinders A11 and the four multi-section servo electric cylinders B14 work telescopic ends A12 and telescopic ends B15 extend, and the two push-up plates 6 move up and push the specimen 5 up so that the lower surface of the push-up plates 6 is higher than the top surface of the square wood edge support 17, and the lower surface of the horizontal tray 13 is also higher than the top surface of the square wood edge support 17, see the attached Figure 5 .

[0048] Before the crane hook 59 lifts the sample 5 from the transport vehicle parked on the floor A42, a "cross center line" must be drawn on the impacted surface of the sample 5. Before the crane hook 59 lifts the sample 5 onto the two lifting pallets 6 through the hanging rope 84, the "cross center line" drawn on the impacted surface of the sample 5 must coincide with the cross markings formed by the laser markings produced by the laser marking instrument C60 and the laser marking instrument D71 before the sample 5 can fall vertically onto the two lifting pallets 6. The video monitoring of this process is completed by the monitoring cameras C61 and D70 with electric control pan-tilt platforms. The lifting of the sample 5 from the transport vehicle onto the two lifting pallets 6 can be completed by controlling the crane and electric hoist A54 through the remote control 72, or it can be completed automatically through the programming control of the display PLC controller 73. See attached Figure 7 and attached Figure 8 The wheel hub servo motor A8, B49, servo electric cylinder A11, servo electric cylinder B14, servo electric cylinder C21, servo electric cylinder D32, servo electric cylinder E47, servo electric cylinder F64, servo electric cylinder G67, servo electric cylinder H77, servo electric cylinder J82, electric pan-tilt monitoring camera A79, electric pan-tilt monitoring camera B24, electric pan-tilt monitoring camera C61, electric pan-tilt monitoring camera D70, electric pan-tilt monitoring camera E86, laser line marker A78, laser line marker B25, laser line marker C60, laser line marker D71, electric gripper 29, electric hoist A54, electric hoist B36, grating transmitting end 41, grating receiving end 74, remote controller 72, laser displacement sensor 85 and other electric control wires are all connected to the display PLC controller 73 by wire or wireless, and the control program, image analysis software and self-learning adaptive program are input into the display PLC controller 73.

[0049] A sample testing method of a composite exterior wall panel impact resistance testing device comprises the following steps: S1. The test personnel draw a cross center line on the impacted surface of the specimen, and drive the vehicle carrying the specimen 5 from the floor A to the bottom of the hook of the electric hoist A on the crane. The test personnel control the crane and the electric hoist A to make the "cross center line" drawn on the impacted surface of the specimen coincide with the cross lines marked by the laser marking instrument C and the laser marking instrument D, and control the electric hoist A to drop the specimen vertically onto the two lifting pallets, remove the hanging rope hanging on the specimen, and drive the specimen to move left to the bottom of the impact mechanism through the lateral displacement mechanism; S2. After the "cross center line" drawn on the impact surface of the sample coincides with the cross marks made by the laser marking instrument A and the laser marking instrument B, the four wheel hub servo motors A stop working, and the four servo electric cylinders A and the four multi-section servo electric cylinders B are controlled to control the sample to fall on the two wooden edge supports. The distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is adjusted. The distance from the bottom of the sandbag to the upper surface of the sample is measured by the laser displacement sensor. The actual distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is calculated. The two servo electric cylinders E and the two servo electric cylinders H are controlled to adjust the distance from the horizontal light to the upper surface of the sample, and the electric hoist B is controlled to move the connecting ring upward. When the loose When the relaxed flexible thin nylon rope tends to straighten, the electric hoist B is controlled to stop working and the electric clamp is controlled to work. The two parallel jaws move back to back, and the stressed section of the flexible nylon rope held is dropped along with the suspended sand bag for a distance. The electric hoist B is controlled to work to move the sand bag upward. When the bottom surface of the sand bag is flush with the horizontal light, the electric hoist B is controlled to stop working, and the electric clamp is controlled to hold the flexible thin nylon rope for hanging the sand bag. The electric hoist B is controlled to work to move the connecting ring downward, and at the same time, the servo electric cylinder D works to make the relaxed section of the falling flexible thin nylon rope slide down the inclined plate for a length longer than the falling height of the sand belt. The electric hoist B stops working and the servo electric cylinder D returns to its reverse position, and the electric clamp is controlled to open the sand bag to freely fall and impact the intersection of the cross center line of the surface of the sample; S3. Repeat step S2 and impact repeatedly. During the impact process and after the impact times, the electronically controlled pan-tilt monitoring cameras A and B collect images of whether there is cracking or damage on the upper surface of the sample in real time. Electronically controlled pan-tilt monitoring cameras E are installed on each of the four sides of the horizontal tray to collect images of whether there is cracking or damage on the lower surface of the sample during the impact test. The impact test results are judged by observing the image data.

[0050] Specifically, the test preparation button in the PLC controller 73 is started and displayed, and the "remote control sample installation button" is pressed to put all the electronic control components into working state. The relevant personnel draw a cross center line on the impacted surface of the sample 5, drive the vehicle carrying the sample 5 from the floor A42 to the position where the hook 59 of the electric hoist A54 can hang the sample 5 and put the hanging rope 84 in place. The relevant personnel operate the remote control 72 to control the crane and the electric hoist A54 to make the "cross center line" drawn on the impacted surface of the sample 5 coincide with the cross marks drawn by the laser marking instrument C60 and the laser marking instrument D71, and then the PLC controller 73 sends out a prompt tone of "the cross marks have overlapped" and then controls the electric hoist. After reed A54 drops the sample 5 vertically onto the two lifting plates 6, the display PLC controller 73 issues a prompt sound of "Please take off the sample hanging rope". The relevant personnel take off the hanging rope 84 hanging on the sample 5, and then press the test start button in the display PLC controller 73. After the display PLC controller 73 confirms that the hanging rope 84 on the sample 5 has been removed through the images provided by the electronically controlled pan-tilt monitoring cameras C61 and D70, the display PLC controller 73 controls the relevant electronic control components according to the programming to move the sample 5 and conduct an impact test. Of course, after hanging the hanging rope 84 on the sample 5 on the transport vehicle, the sample 5 can be installed without manually controlling the remote control 72. The "automatic installation of sample" button in the display PLC controller 73 can be directly pressed. The display PLC controller 73 controls the operation of the wheel hub servo motor B49, the servo motor A56 and the electric hoist A54 in driving according to the image data provided by the electronically controlled pan-tilt monitoring cameras C61 and D70, so that the "cross center line" drawn by the impact surface of the sample 5 coincides with the cross markings made by the laser marking instrument C60 and the laser marking instrument D71, and the sample 5 falls vertically onto the two lifting pallets 6. Then, a prompt sound of "please take off the sample hanging rope" is issued, and the relevant personnel take off the hanging rope 84 hanging on the sample 5. When the display PLC controller 73 confirms that the hanging rope 84 on the sample 5 has been removed through the images provided by the electronically controlled pan-tilt monitoring cameras C61 and D70, the display PLC controller 73 controls the relevant electronic control components according to the programming to move the sample 5 and conduct an impact test. The specific steps of moving and impacting the sample 5 are: the PLC controller 73 is displayed to control the four wheel hub servo motors A8 to work and move the sample 5 to the left. When the "cross center line" drawn by the impact surface of the sample 5 coincides with the cross markings made by the laser marking instrument A78 and the laser marking instrument B25, the four wheel hub servo motors A8 stop working. See attached Figure 5 The position state of the sample 5 in the figure shows that the PLC controller 73 controls the telescopic ends A12 of the four servo electric cylinders A11 and the telescopic ends B15 of the four multi-section servo electric cylinders B14 to move downward, so that the lower surface of the sample 5 contacts the two wooden edge supports 17 and bears the weight of the sample 5, see the attached Figure 1Since the height of the connecting ring 38, the length of the flexible thin nylon rope 39, and the height of the two parallel claws 28 are all known, the height of the laser displacement sensor 85 and the height of the grating emitting end 41 and the grating receiving end 74 are also known, the distance from the horizontal light 40 between the grating emitting end 41 and the grating receiving end 74 to the upper surface of the sample 5 should be 500 mm, but the thickness of the samples 5 produced by different manufacturers and different batches is different. In order to ensure that the distance from the bottom surface of the sand bag 26 to the upper surface of the sample 5 is 500 mm, it is necessary to adjust the horizontal light 40 that determines the height of the bottom surface of the sand bag 26 at any time. Therefore, the display PLC controller 73 measures the distance from the upper surface of the sample 5 according to the position of the laser displacement sensor 85, calculates the actual distance from the horizontal light 40 between the grating emitting end 41 and the grating receiving end 74 to the upper surface of the sample 5, and accordingly controls the operation of the telescopic end E46 of the two servo electric cylinders E47 and the telescopic end H76 of the two servo electric cylinders H77 in a timely manner, so that the distance from the horizontal light 40 to the upper surface of the sample 5 is 500 mm. Then the PLC controller 73 is displayed to control the electric hoist B36 to move the connecting ring 38 upward. When the slack flexible thin nylon rope 39 is about to be straightened, the PLC controller 73 is displayed to control the electric hoist B36 to stop working and control the electric clamp 29 to work. The two parallel claws 28 move back to back. The supported flexible nylon rope force section 27 falls a short distance along with the suspended sand bag 26. See attached Figure 6 , the PLC controller 73 is displayed to control the electric hoist B36 to move the sandbag 26 upward. When the bottom surface of the sandbag 26 is flush with the horizontal light 40, the grating receiving end 74 has sent a signal to the PLC controller 73, and the PLC controller 73 controls the electric hoist B36 to stop working. The PLC controller 73 controls the electric clamp 29 to work forward, and the two parallel claws 28 are brought together to hold the flexible thin nylon rope 39 that suspends the sandbag 26. The PLC controller 73 controls the electric hoist B36 to move the connecting ring 38 downward. At the same time, the PLC controller 73 controls the servo electric cylinder D32 to work, and the telescopic end D31 is extended for a distance, so that the slack section of the falling flexible thin nylon rope 39 slides down the inclined plate 33 for a distance greater than the falling distance of the sandbag 26 of 500mm. After that, the electric hoist B36 stops working, and the servo electric cylinder D32 works in the reverse direction, and the telescopic end D31 returns to the position before starting. See attached Figure 1 As shown in the figure, the PLC controller 73 controls the electric clamp 29 to work, the two parallel jaws 28 move in opposite directions, and the sand bag 26 falls freely to impact the intersection of the cross center line on the surface of the sample 5. At this time, the flexible thin nylon rope 39 is still in a relaxed state. See the attached figure. Fig. 9Then, the PLC controller 73 controls the electric hoist B36 to move the bottom surface of the sand bag 26 upward to be flush with the horizontal light 40, and the electric hoist B36 stops working. The PLC controller 73 controls the electric clamp 29 to work forward, and the two parallel claws 28 are brought together to hold the flexible thin nylon rope 39 for hanging the sand bag 26. The PLC controller 73 controls the electric hoist B36 to move the connecting ring 38 downward, and at the same time, the PLC controller 73 controls the servo electric cylinder D32 to work, and the telescopic end D31 is extended for a distance, so that the slack section of the falling flexible thin nylon rope 39 slides down the inclined plate 33 for a distance greater than the falling distance of the sand bag 26 of 500mm. Then, the electric hoist B36 stops working, and the servo electric cylinder D32 works in the reverse direction, and the telescopic end D31 returns to the position before starting. Then the display PLC controller 73 controls the electric clamp 29 to work, and the two parallel jaws 28 move back to back, and the sand bag 26 falls freely to impact the intersection of the cross center lines on the surface of the sample 5, and the impact is repeated; if the outer side of the sample 5 is impacted 5 times and the inner side of the sample 5 is impacted 3 times, during the impact process and after the impact times, the electric-controlled pan-tilt monitoring cameras A79 and B24 will transmit the image of whether there is any cracking or damage on the upper surface of the sample 5 to the display PLC controller 73 in real time. A horizontal tray 13 is provided on the lower surface of the sample 5, and an electric-controlled pan-tilt monitoring camera E86 is provided on each of the four sides of the horizontal tray 13. The four electric-controlled pan-tilt monitoring cameras E86 will transmit the image of whether there is any cracking or damage on the lower surface of the sample 5 during the impact test to the display PLC controller 73 in real time. Finally, the display PLC controller 73 makes a judgment conclusion on the impact test result according to the programming.

[0051] The test device realizes full automation of sample loading and unloading, measurement, impact, visual inspection and test result determination, thus improving the test quality and efficiency.

[0052] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A composite exterior wall panel impact resistance test device, characterized in that: It includes sample support mechanism, sample impact mechanism, sample moving and loading mechanism and measurement and positioning mechanism. The specimen support mechanism includes two reinforced concrete walls vertically fixed on the floor B and parallel to each other and spaced apart. A wooden edge support is fixed to the top of each wall along the length of the wall. The tops of the two wooden edge supports are at the same height and parallel to each other. The sample impact mechanism includes an electric hoist B installed directly above the sample support mechanism and a vertical fixed rod located on one side of the electric hoist B. The end of the steel wire rope B of the electric hoist B is connected to the sand bag through a flexible nylon rope. A horizontal rod is arranged at the lower end of the vertical fixed rod. An electric clamp located directly below the electric hoist B and capable of controlling the clamping or releasing of the flexible nylon rope is installed at the end of the horizontal rod. A laser displacement sensor is installed on the bottom surface of the horizontal rod. The specimen moving and loading and unloading mechanism includes a lateral displacement mechanism, which includes two guide rails A installed on the floor B at both ends of the wall in the length direction and parallel to each other, a strip A is slidably installed on each guide rail A through a hub servo motor A, and servo electric cylinders A are vertically installed on both ends of the surface of each strip A, and a push-up support plate is connected between the telescopic ends A of the two servo electric cylinders A at the ends of the same side of the two plates A, and the two push-up support plates are parallel to the square wood edge support and the distance between the two push-up support plates is greater than the distance between the outer sides of the two walls; The measuring and positioning mechanism includes columns A, B, C and D. Column A is arranged on one side of one of the guide rails A and is located on the center line of the distance between the two square wood edges. A servo electric cylinder C is vertically installed on the top surface of column A. The telescopic end C of the servo electric cylinder C is installed with a monitoring camera B with an electric control pan-tilt platform and a laser marking instrument B through a square support plate B. Column B is arranged on the left side of the sample support mechanism and is located on the width center line of the two guide rails A. Two servo electric cylinders H are arranged on the top surface of column B at intervals. A telescopic end H of the two servo electric cylinders H is connected between them. Grating receiving end, a grating emitting end parallel to the grating receiving end and in the same horizontal plane is equidistantly arranged on the right side of the sample support mechanism. The grating emitting end is suspended by two suspension rods, and the tops of the two suspension rods are respectively connected to the telescopic ends E of the vertically arranged servo electric cylinder E; a servo electric cylinder J is vertically installed on the column B through a support frame, and a monitoring camera A with an electric-controlled pan-tilt platform and a laser marking instrument A are installed on the telescopic end J of the servo electric cylinder J through a square support plate A. The lasers of the laser marking instrument A and the laser marking instrument B form a cross light, and the intersection is located directly below the sand bag; The column C is arranged opposite to the column A and the connecting line of the two columns is parallel to the guide rail A. A servo electric cylinder F is vertically installed on the top surface of the column C. A monitoring camera C with an electric pan-tilt head and a laser marking instrument C are installed on the telescopic end F of the servo electric cylinder F through a square support plate C; Column D is arranged on the extension line of the center line of the two guide rails A and is arranged opposite to column B. A servo electric cylinder G is vertically installed on the top surface of column D. A monitoring camera D with an electric pan-tilt head and a laser marking instrument D are installed on the telescopic end G of the servo electric cylinder G through a square support plate D. The laser marking instrument D and the laser marking instrument A are in the same vertical plane. The lasers of the laser marking instrument D and the laser marking instrument C form a cross light, and the intersection is used to locate the position of the sample.

2. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: A horizontal tray is provided between two parallel reinforced concrete walls. A monitoring camera E with an electric-controlled pan-tilt platform is provided in the middle of each of the four sides of the horizontal tray. A servo electric cylinder B is vertically connected between the bottom surface of the horizontal tray and the surface of the corresponding strip board A.

3. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: The sample moving mechanism also includes a lifting mechanism, which includes a crane whose travel direction is perpendicular to the guide rail A, a guide rail C perpendicular to the travel direction of the crane is fixed to the bottom surface of the crane, a U-shaped plate driven by a servo motor A is slidably connected to the guide rail C, an electric hoist A is installed at the bottom of the U-shaped plate, and a hook is installed on the wire rope A of the electric hoist A through a movable pulley.

4. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: A servo electric cylinder D is installed horizontally above the electric clamp on the vertical fixing rod, and the telescopic end of the servo electric cylinder D is connected with an inclined plate that can be used to push the flexible nylon rope to slide down.

5. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: Two hub servo motors A are arranged on each guide rail A. The hub of the hub servo motor A is in rolling cooperation with the guide rail A. An axis frame is installed on the axis A of the hub servo motor A. The two axis frames A on the same guide rail A are respectively fixed to the two ends of the bottom surface of the strip A by bolts.

6. The impact resistance test device for composite exterior wall panels according to claim 1, characterized in that: It also includes a display PLC controller which is electrically connected to the sample impact mechanism, the sample moving and loading mechanism and the measuring and positioning mechanism and is used to coordinate and control the operation of each mechanism. The display PLC controller is provided with a test preparation button, a test installation button and a test start button.

7. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: Floor B is the bottom surface of the installation groove arranged on floor A, and the transport vehicle carrying the sample is parked on floor A.

8. The impact resistance test device for composite exterior wall panels according to claim 1 is characterized in that: The column C is arranged at 1 / 2 of the length direction of the strip A when the lateral displacement mechanism moves to the rightmost end of the guide rail A.

9. The impact resistance test device for composite exterior wall panels according to claim 1, characterized in that: Limiting plates for limiting the lateral displacement mechanism from detaching from the guide rail A are respectively provided at both ends of the guide rail A.

10. A sample testing method of the composite exterior wall panel impact resistance testing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The test personnel draw a cross center line on the impacted surface of the specimen, and drive the vehicle carrying the specimen 5 from the floor A to the bottom of the hook of the electric hoist A on the crane. The test personnel control the crane and the electric hoist A to make the "cross center line" drawn on the impacted surface of the specimen coincide with the cross lines marked by the laser marking instrument C and the laser marking instrument D. The test personnel control the electric hoist A to drop the specimen vertically onto the two lifting pallets, remove the hanging rope hanging on the specimen, and drive the specimen to move left to the bottom of the impact mechanism through the lateral displacement mechanism; S2. After the "cross center line" drawn on the impact surface of the sample coincides with the cross marks made by the laser marking instrument A and the laser marking instrument B, the four wheel hub servo motors A stop working, and the four servo electric cylinders A and the four multi-section servo electric cylinders B are controlled to control the sample to fall on the two wooden edge supports. The distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is adjusted. The distance from the bottom of the sandbag to the upper surface of the sample is measured by the laser displacement sensor, and the actual distance from the horizontal light between the grating transmitting end and the grating receiving end to the upper surface of the sample is calculated. The two servo electric cylinders E and the two servo electric cylinders H are controlled to adjust the distance from the horizontal light to the upper surface of the sample, and the electric hoist B is controlled to move the connecting ring upward. When the loose When the relaxed flexible thin nylon rope tends to straighten, the electric hoist B is controlled to stop working and the electric clamp is controlled to work. The two parallel jaws move back to back, and the stressed section of the flexible nylon rope held is dropped along with the suspended sand bag for a distance. The electric hoist B is controlled to work to move the sand bag upward. When the bottom surface of the sand bag is flush with the horizontal light, the electric hoist B is controlled to stop working, and the electric clamp is controlled to hold the flexible thin nylon rope for hanging the sand bag. The electric hoist B is controlled to work to move the connecting ring downward, and at the same time, the servo electric cylinder D works to make the relaxed section of the falling flexible thin nylon rope slide down the inclined plate for a length longer than the falling height of the sand belt. The electric hoist B stops working and the servo electric cylinder D returns to its reverse position, and the electric clamp is controlled to open the sand bag to freely fall and impact the intersection of the cross center line of the surface of the sample; S3. Repeat step S2 and impact repeatedly. During the impact process and after the impact times, the electronically controlled pan-tilt monitoring cameras A and B collect images of whether there is cracking or damage on the upper surface of the sample in real time. Electronically controlled pan-tilt monitoring cameras E are installed on each of the four sides of the horizontal tray to collect images of whether there is cracking or damage on the lower surface of the sample during the impact test. The impact test results are judged by observing the image data.

Images