A composite curved plate compression test device

Abstract

The utility model relates to a composite curved plate compression test device, which comprises: a support assembly, the support assembly comprises a bottom plate and a slide plate slidably mounted on the bottom of the bottom plate; a clamping assembly, the clamping assembly is fixed on the slide plate, and is used to clamp a plate to be tested; a loading assembly, the loading assembly comprises a lifting plate that is adjustable in height above the slide plate and a loading head that is liftably arranged at the bottom of the lifting plate, and the loading head is used to perform single-point loading on the plate. During the test, the composite plate to be tested is placed between the clamping assemblies, the clamping assemblies clamp the plate, the slide plate drives the plate to move to the bottom of the lifting plate, and finally the descending loading head performs single-point loading on the upper surface of the plate. As the loading head descends, the plate will be gradually pressed to bend, and by moving the slide plate, single-point loading can be performed on any position on the upper surface of the plate, so that the influence of different loading points and different loading distances on the compression deformation of the plate can be obtained.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate compression testing, and in particular relates to a composite curved plate compression testing device. Background Art

[0002] Composite sheet refers to a sheet made of two or more materials. Compression test is one of the basic methods for testing the performance of composite sheet, which is mainly used to test the influence of compression and bending deformation of sheet when it is subjected to different external loading forces.

[0003] In the utility model patent with application number "201721788484.6" and name "A fixture for testing the compression performance of composite material plates", the material sample is better aligned by abutting the baffle plate, ensuring that the load is transmitted along the axial direction of the plate, and the axial compression performance of the composite material plate is accurately obtained.

[0004] In the above-mentioned patent, the external loading force is applied to the top plate, which then acts on the plate to be tested below. During the test, the entire upper surface of the plate is under the force of the loading load, and it is impossible to load the plate at a single point, so it is impossible to obtain the effect of different loading points on the compression deformation of the plate. Utility Model Content

[0005] The utility model aims to provide a composite curved plate compression test device to overcome the defect that the existing plate compression test device cannot perform single-point loading on the plate, and therefore cannot obtain the influence of different loading points on the compression deformation of the plate.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a composite curved plate compression test device, which comprises:

[0007] A support assembly, the support assembly comprising a base plate and a slide plate slidably mounted on the bottom of the base plate;

[0008] A clamping assembly, which is fixed on the slide plate and is used to clamp the plate to be tested;

[0009] The loading assembly comprises a lifting plate which is arranged above the slide plate in an adjustable height and a loading head which is arranged at the bottom of the lifting plate in an adjustable manner, and the loading head is used for single-point loading of the plate.

[0010] Optimally, the support assembly also includes a turntable rotatably mounted on the top of the base plate, a turn plate fixed on the top of the turntable, a first fixed column fixed on the top of the skateboard, a second fixed column fixed on the top of the turn plate, and a connecting rod having one end pivotally connected to the first fixed column and the other end pivotally connected to the second fixed column.

[0011] Optimally, the support assembly further comprises a slide rail fixed on the top of the base plate and a slider slidably mounted on the slide rail, and the slider is fixed on the slider.

[0012] Optimally, the clamping assembly includes two baffles fixed on the top of the slide plate and arranged opposite to each other, a clamping plate movably arranged on the inner side of the baffle, and a clamping portion fixed on the opposite side of the clamping plate.

[0013] Optimally, the clamping assembly also includes a guide column fixed between the baffles, a guide sleeve mounted on the guide column, and a clamping cylinder fixed on the inner side of the baffle and connected to the clamping plate, the guide sleeve being fixed on the clamping plate, and the clamping cylinder drives the clamping plate to move inward to clamp the plate to be tested.

[0014] Optimally, the loading assembly also includes a top plate, a ball screw rotatably arranged between the bottom plate and the top plate, a synchronous wheel installed on the top of the ball screw, and a synchronous belt wound around the synchronous wheel, and the lifting plate is connected to the ball screw.

[0015] Optimally, the loading assembly also includes a loading cylinder fixed on the lifting plate and connected to the loading head, a synchronization plate connected to the piston rod of the loading cylinder, a synchronization rod fixed on the top of the synchronization plate and passing through the lifting plate, a mounting plate fixed on the synchronization rod, an infrared receiver fixed on the top of the lifting plate, and an infrared transmitter fixed on the mounting plate and cooperating with the infrared receiver.

[0016] Optimally, the loading assembly further comprises a support plate fixed on the top of the lifting plate and an extension plate integrally connected to the top of the support plate and extending toward a side close to the loading cylinder, and the synchronization rod passes through the extension plate.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] During the test of the composite curved plate compression test device of the utility model, the composite plate to be tested is placed between the clamping components, the clamping components clamp the plate, the slide plate drives the plate to move to the bottom of the lifting plate, and finally the upper surface of the plate is single-point loaded by the descending loading head. As the loading head descends, the plate will be gradually pressed to bend, and by moving the slide plate, single-point loading can be performed on any position on the upper surface of the plate, so that the influence of different loading points and different loading distances on the compression deformation of the plate can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 It is a right side view of the utility model;

[0022] Figure 4 This is a front view of the clamping assembly of the utility model;

[0023] Figure 5 It is a top view of the clamping assembly of the utility model;

[0024] Description of reference numerals:

[0025] 1. Bottom plate; 2. Slide rail; 3. Slider; 4. Slide plate; 5. Turntable; 6. Turntable; 7. First fixed column; 8. Second fixed column; 9. Connecting rod; 10. Baffle; 11. Guide column; 12. Guide sleeve; 13. Clamping plate; 14. Clamping part; 15. Clamping cylinder; 16. Ball screw; 17. Lifting plate; 18. Top plate; 19. Synchronous wheel; 20. Synchronous belt; 21. Loading cylinder; 22. Loading head; 23. Synchronous plate; 24. Synchronous rod; 25. Mounting plate; 26. Infrared transmitter; 27. Infrared receiver; 28. Support plate; 29. ​​Extension plate. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0027] like Figure 1-3 The figure shows a schematic diagram of the structure of the composite curved plate compression test device of the utility model, which is used to clamp the composite plate and perform a single-point loading test on the composite plate, so as to obtain the influence of different loading points on the compression deformation of the plate. It includes a support component, a clamping component and a loading component. The clamping component is used to clamp the composite plate to be loaded and tested, and the support component is used to drive the clamping component to move, so as to ensure that the loading component above can apply a single-point loading force to any position on the top of the plate, thereby improving the accuracy of the test results.

[0028] The support assembly includes a base plate 1, a slide rail 2, a slider 3, a slide plate 4, a turntable 5, a turntable 6, a first fixed column 7, a second fixed column 8 and a connecting rod 9. The base plate 1 is fixed to the test machine by screw fastening, the slide rail 2 is fixed to the top of the base plate 1 by screw fastening, and the slider 3 is slidably mounted on the slide rail 2. The slide plate 4 is fixed to the slider 3, and when the slide plate 4 moves, it will drive the slider 3 to move synchronously along the slide rail 2, thereby improving the stability of the slide plate 4 and the clamping assembly when moving, thereby improving the accuracy of the single-point loading test results.

[0029] The turntable 5 is rotatably mounted on the top of the base plate 1, and a servo motor connected to the turntable 5 is fixed at the bottom of the base plate 1 to drive the turntable 5 to rotate. The turntable 6 is fixed on the turntable 5 and rotates synchronously with the turntable 5. The first fixed column 7 is fixed on the top of the slide plate 4, the second fixed column 8 is fixed on the top of the turntable 6, one end of the connecting rod 9 is rotatably connected to the first fixed column 7, and the other end of the connecting rod 9 is rotatably connected to the second fixed column 8. The slide plate 4 is driven to perform reciprocating linear motion by the rotating turntable 6 to ensure that the loading assembly above can apply a single-point loading force to any position on the top of the plate, thereby improving the accuracy of the test results.

[0030] The clamping assembly is fixed on the top of the slide plate 4 and is used to clamp the composite plate to be loaded and tested. Figure 4 , 5 As shown, the clamping assembly includes a baffle 10, a guide column 11, a guide sleeve 12, a clamping plate 13, a clamping portion 14 and a clamping cylinder 15. There are two baffles 10, which are fixed on the top of the slide plate 4 at intervals and perpendicular to the slide plate 4, the guide column 11 is fixed between the two baffles 10, and the guide sleeve 12 is sleeved on the guide column 11.

[0031] There are two clamping plates 13 fixed on the guide sleeve 12. When the clamping plates 13 move inward to clamp the composite plate, the moving clamping plates 13 are guided by the guiding action of the guide sleeve 12 and the guide column 11 to ensure the stability of the clamping plates 13 in clamping the plates and avoid shaking of the composite plate, thereby affecting the results of the loading test.

[0032] The cylinder body of the clamping cylinder 15 is fixed to the inner side of the baffle 10, and the guide rod of the clamping cylinder 15 is connected to the clamping plate 13, and is used to drive the clamping plate 13 to move inward to clamp the composite plate. The clamping part 14 is fixed to the opposite side of the clamping plate 13, and the opposite side of the clamping part 14 is provided with a frosted surface. After clamping the plate, the frosted surface increases the friction with the plate, thereby improving the reliability of clamping the plate.

[0033] The loading assembly is arranged above the slide plate 4, and performs single-point loading on the plate clamped by the clamping assembly. The loading assembly includes a ball screw 16, a lifting plate 17, a top plate 18, a synchronous wheel 19, a synchronous belt 20, a loading cylinder 21, a loading head 22, a synchronous plate 23, a synchronous rod 24, a mounting plate 25, an infrared transmitter 26, an infrared receiver 27, a support plate 28 and an extension plate 29. The top plate 18 is fixed above the bottom plate 1 by an aluminum profile, and a ball screw 16 is arranged between the bottom plate 1 and the top plate 18. The lifting plate 17 is connected to the movable part of the ball screw 16, and the lifting plate 17 is driven by the ball screw 16 to perform lifting motion, so as to drive the loading head 22 to descend and fit on the upper surface of the plate. There are two groups of ball screws 16 to ensure the stability of the lifting motion of the lifting plate 17.

[0034] The synchronous wheel 19 is installed on the top of the ball screw 16, and the synchronous belt 20 is wound around the synchronous wheel 19. When the driving mechanism drives one of the ball screws 16 to rotate, the torque is transmitted to the other ball screw 16 through the cooperation of the synchronous belt 20 and the synchronous wheel 19, thereby ensuring the synchronization of the movement of the two ball screws 16.

[0035] The cylinder body of the loading cylinder 21 is fixed on the top of the lifting plate 17, and the piston rod of the loading cylinder 21 passes through the lifting plate 17 and is connected to the loading head 22. The loading cylinder 21 drives the loading head 22 to move downward, thereby applying a single-point force to the plate below.

[0036] The synchronization plate 23 is fixed on the piston rod of the loading cylinder 21. When the loading cylinder 21 drives the loading head 22 to move downward, it will drive the synchronization plate 23 to move downward synchronously. The support plate 28 is fixed on the top of the lifting plate 17, and the extension plate 29 is fixed on the top of the support plate 28 and extends toward the side close to the loading cylinder 21. The synchronization rod 24 is fixed on the top of the synchronization plate 23 and penetrates the lifting plate 17 and the extension plate 29. When the synchronization plate 23 moves downward, it will drive the synchronization rod 24 to move downward. The lifting plate 17 and the extension plate 29 are provided with through holes that match the synchronization rod 24 to guide the movement of the synchronization rod 24 and prevent the synchronization rod 24 from tilting.

[0037] The mounting plate 25 is fixed on the synchronization rod 24, the infrared receiver 27 is fixed on the top of the lifting plate 17, the infrared transmitter 26 is fixed on the mounting plate 25 and used in conjunction with the infrared receiver 27, and the infrared receiver 27 cooperates with the infrared transmitter 26 to detect the loading distance of the loading head 22 moving downward.

[0038] The test principle of the composite curved plate compression test device of the utility model is as follows:

[0039] The composite plate to be tested is placed between the two clamping plates 13. The clamping cylinder 15 drives the two clamping plates 13 to move inward, the clamping portion 14 clamps the plate, and the slide plate 4 drives the plate to move to the bottom of the lifting plate 17.

[0040] The ball screw 16 drives the lifting plate 17 down until the loading head 22 is against the upper surface of the plate, and then the loading cylinder 21 is started, and the loading cylinder 21 drives the loading head 22 to move downward to perform single-point loading on the upper surface of the plate. At this time, the synchronization plate 23 and the synchronization rod 24 move downward synchronously, and the downward loading distance of the loading head 22 can be known through the cooperation of the infrared receiver 27 and the infrared transmitter 26. As the loading head 22 descends, the plate will be gradually pressed to bend. By moving the slide plate 4, single-point loading can be performed on any position on the upper surface of the plate, so that the influence of different loading points and different loading distances on the compression deformation of the plate can be obtained.

[0041] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A composite curved plate compression test device, characterized in that: It includes: A support assembly, the support assembly comprising a base plate (1) and a slide plate (4) slidably mounted on the bottom of the base plate (1); A clamping assembly, which is fixed on the slide plate (4) and is used to clamp a plate to be tested; A loading assembly comprises a lifting plate (17) which is arranged above a slide plate (4) in a height-adjustable manner and a loading head (22) which is arranged at the bottom of the lifting plate (17) in a liftable manner, wherein the loading head (22) is used for single-point loading of a plate.

2. A composite curved plate compression test device according to claim 1, characterized in that: The support assembly further comprises a turntable (5) rotatably mounted on the top of the base plate (1), a turntable (6) fixed on the top of the turntable (5), a first fixed column (7) fixed on the top of the slide plate (4), a second fixed column (8) fixed on the top of the turntable (6), and a connecting rod (9) having one end pivotally connected to the first fixed column (7) and the other end pivotally connected to the second fixed column (8).

3. A composite curved plate compression test device according to claim 2, characterized in that: The support assembly further comprises a slide rail (2) fixed on the top of the base plate (1) and a slider (3) slidably mounted on the slide rail (2), and the slider (4) is fixed on the slider (3).

4. A composite curved plate compression test device according to claim 1, characterized in that: The clamping assembly comprises two baffles (10) fixed on the top of the slide plate (4) and arranged opposite to each other, a clamping plate (13) movably arranged inside the baffles (10), and a clamping portion (14) fixed on the opposite side of the clamping plate (13).

5. A composite curved plate compression test device according to claim 4, characterized in that: The clamping assembly further comprises a guide column (11) fixed between the baffles (10), a guide sleeve (12) sleeved on the guide column (11), and a clamping cylinder (15) fixed on the inner side of the baffle (10) and connected to the clamping plate (13), wherein the guide sleeve (12) is fixed on the clamping plate (13), and the clamping cylinder (15) drives the clamping plate (13) to move inward to clamp the plate to be tested.

6. A composite curved plate compression test device according to claim 1, characterized in that: The loading assembly further comprises a top plate (18), a ball screw (16) rotatably arranged between the bottom plate (1) and the top plate (18), a synchronous wheel (19) mounted on the top of the ball screw (16), and a synchronous belt (20) wound around the synchronous wheel (19); the lifting plate (17) is connected to the ball screw (16).

7. The composite curved plate compression test device according to claim 1, characterized in that: The loading assembly further comprises a loading cylinder (21) fixed on the lifting plate (17) and connected to the loading head (22), a synchronization plate (23) connected to the piston rod of the loading cylinder (21), a synchronization rod (24) fixed on the top of the synchronization plate (23) and passing through the lifting plate (17), a mounting plate (25) fixed on the synchronization rod (24), an infrared receiver (27) fixed on the top of the lifting plate (17), and an infrared transmitter (26) fixed on the mounting plate (25) and matched with the infrared receiver (27).

8. A composite curved plate compression test device according to claim 7, characterized in that: The loading assembly further comprises a support plate (28) fixed on the top of the lifting plate (17) and an extension plate (29) integrally connected to the top of the support plate (28) and extending toward a side close to the loading cylinder (21), and the synchronization rod (24) passes through the extension plate (29).

Images