Multifunctional test platform and use method

Abstract

The invention relates to a multifunctional test platform and a use method, and relates to the technical field of bridge engineering equipment. The mounting seat is arranged on the platform bottom plate, a detachable mounting interface is arranged on the mounting seat, and the mounting interface is used for being fixedly or rotatably connected with one end of a to-be-tested piece; the movable platform comprises a movable connecting plate and an actuating mechanism, the fixed end of the actuating mechanism is connected with the mounting seat, the movable end of the actuating mechanism is connected with the movable connecting plate, and the movable connecting plate is used for being connected with the other end of the to-be-tested piece. According to the expected test type, the two ends of the to-be-tested piece are connected with the movable connecting plate and the mounting base respectively, test parameters are determined, and according to the test parameters, the movable connecting plate is driven by the actuating mechanism to move. As the displacement of the movable connecting plate can be determined according to the expected test type, various different tests can be carried out on the same platform, and the use state of the to-be-tested piece can be better and more truly simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering equipment, and in particular to a multifunctional test platform and a use method thereof. Background Art

[0002] With the development of civil engineering design, research and construction technology, civil engineering construction is becoming more and more prosperous. Civil engineering design tends to be lightweight and have larger spans. This type of civil engineering is prone to large deformation and vibration under dynamic loads, especially moving loads. Excessive deformation and vibration can easily increase the internal stress of the bridge and reduce its durability. In related technologies, some civil engineering specimens need to be tested, including damper specimens, support specimens, etc.

[0003] In the prior art, the tests on damper specimens are mostly axial tension and compression tests, and the tests on support specimens are mostly compression and shear tests (the support specimen is subjected to a certain axial pressure and then given a shear force in a measured direction).

[0004] However, during on-site use, the actual stress boundaries of the specimens are relatively complex, often not just tension and compression or compression and shear, making it difficult to effectively correspond the reliability of the specimens in actual applications with the existing test results, and there are certain hidden dangers in use. Summary of the invention

[0005] The present application provides a multifunctional testing platform and a method for use, which can solve the problem in the prior art that, during on-site use, the actual force boundaries of the test piece are relatively complex, often not just tension, compression or compression and shear, making it difficult to effectively correspond the reliability of the test piece in actual application with the existing test results, and there are certain hidden dangers in use.

[0006] In a first aspect, an embodiment of the present application provides a multifunctional test platform, which includes:

[0007] Platform floor;

[0008] A mounting seat, which is arranged on the platform bottom plate, and a detachable mounting interface is provided on the mounting seat, and the mounting interface is used to be fixedly or rotatably connected to one end of the test piece;

[0009] The movable platform comprises an movable connecting plate and an actuating mechanism, wherein the fixed end of the actuating mechanism is connected to the mounting seat, and the movable end is connected to the movable connecting plate, and the movable connecting plate is used to be connected to the other end of the test piece.

[0010] In one embodiment, the actuating mechanism includes a plurality of actuating units, one end of each of the actuating units is spaced apart along the circumference of the movable connecting plate, and the other end is connected to the mounting seat, and the actuating unit includes:

[0011] Two groups of actuators, one end of the actuator is rotatably connected to the mounting seat, and the other end is rotatably connected to the movable connecting plate, and the spacing between the ends of the two groups of actuators connected to the mounting seat is smaller than the spacing between the ends connected to the movable connecting plate;

[0012] A driving unit is used to drive the actuator to move so as to adjust the spatial position of the movable connecting plate.

[0013] In one embodiment, the movable connecting plate and the mounting seat are both provided with Hooke's hinges matching the number of the actuating units, the Hooke's hinges are rotatably connected to two groups of actuators, the Hooke's hinges on the mounting seat are arranged corresponding to the actuating units, and the Hooke's hinges on the movable connecting plate are rotatably connected to two groups of actuators close to each other in two adjacent actuating units.

[0014] In one embodiment, the Hooke's hinge comprises:

[0015] A fixing seat, on which two mounting holes are arranged at intervals;

[0016] Two rotating columns, each of which is rotatably disposed in the mounting hole and has an end extending out of the mounting hole;

[0017] The hinge seat is arranged corresponding to the rotating column, which is arranged at one end of the rotating column extending out of the mounting hole and is rotatably connected to the actuator.

[0018] In one embodiment, the actuator is a telescopic rod, and the driving unit includes a controller correspondingly arranged on the actuator, and the controller is used to drive the actuator to extend and rotate so as to adjust the spatial position of the movable connecting plate.

[0019] In one embodiment, the mounting base comprises:

[0020] A mounting platform, which is arranged on the platform bottom plate, and a slide groove is provided on the mounting platform;

[0021] A sliding beam is slidably arranged on the sliding groove, and the mounting interface is provided on the sliding beam.

[0022] In one embodiment, a mounting plate is provided on a side of the mounting platform close to the movable platform, and a longitudinal cross-sectional area of ​​the mounting plate is larger than a longitudinal cross-sectional area of ​​the mounting platform.

[0023] In a second aspect, an embodiment of the present application further provides a method for using a multifunctional test platform, which is implemented using the multifunctional test platform described above, and includes:

[0024] According to the expected test type, connect the two ends of the test piece to the movable connecting plate and the mounting seat respectively, and determine the test parameters;

[0025] According to the test parameters, the movable connecting plate is driven to move by the actuating mechanism.

[0026] In one embodiment, the method of using an actuating mechanism to drive the movable connecting plate to move according to the test parameters includes:

[0027] Determine the desired spatial position of the movable connecting plate according to the test parameters;

[0028] Obtaining a theoretical adjustment amount of the actuating mechanism according to the desired spatial position of the movable connecting plate;

[0029] According to the theoretical adjustment amount of the actuating mechanism and the actual spatial position of the movable connecting plate, the motion deviation value of the actuating mechanism is obtained;

[0030] According to the theoretical adjustment amount of the actuating mechanism and the motion deviation value of the actuating mechanism, the actual adjustment amount of the actuating mechanism is obtained and adjusted.

[0031] In one embodiment, the method of using an actuating mechanism to drive the movable connecting plate to move according to the test parameters includes:

[0032] Determining, based on the test parameters, a desired force and / or a desired displacement for adjusting the movable connecting plate to a desired spatial position;

[0033] The detected deviation of the corresponding force and / or displacement is obtained, and the actual input force and / or actual input displacement is obtained according to the expected force and / or expected displacement and the deviation of the corresponding force and / or displacement.

[0034] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0035] When installing the multifunctional test platform, the mounting seat is set on the platform bottom plate, and the mounting seat is provided with a detachable mounting interface, and the mounting interface is used to be fixedly or rotatably connected to one end of the test piece, and the movable platform includes a movable connecting plate and an actuating mechanism, and the fixed end of the actuating mechanism is connected to the mounting seat, and the movable end is connected to the movable connecting plate, and the movable connecting plate is used to connect to the other end of the test piece. According to the expected test type, the two ends of the test piece are respectively connected to the movable connecting plate and the mounting seat, and the test parameters are determined. According to the test parameters, the movable connecting plate is driven to move by the actuating mechanism. Since the displacement of the movable connecting plate can be determined according to the expected test type, a variety of different tests can be carried out on the same platform, and the use state of the test piece can be better and more realistically simulated, which solves the problem that the actual force boundary of the test piece is relatively complex in the field use of the prior art, and is often not just tension, compression or compression and shear, which makes it difficult for the reliability of the test piece in actual application to effectively correspond to the existing test results, and there are certain hidden dangers in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a structural schematic diagram of an embodiment of a multifunctional test platform of the present invention.

[0038] Figure 2 It is a front view structural schematic diagram of an embodiment of a multifunctional test platform of the present invention.

[0039] Figure 3 This is a schematic diagram of the structure from the left side perspective of a multifunctional test platform embodiment of the present invention.

[0040] Figure 4 It is a schematic structural diagram from the right side perspective of a multifunctional test platform embodiment of the present invention.

[0041] Figure 5 It is a structural schematic diagram of a Hooke's joint on a movable connecting plate in an embodiment of a multifunctional test platform of the present invention.

[0042] Figure 6 It is a structural schematic diagram of an actuating mechanism in an embodiment of a multifunctional test platform of the present invention.

[0043] Figure 7 It is a structural schematic diagram of a Hooke's joint in an embodiment of a multifunctional test platform of the present invention.

[0044] Figure 8 It is a schematic diagram of the first control mode in an embodiment of a method for using a multifunctional test platform of the present invention.

[0045] Fig. 9 It is a schematic diagram of the second control mode in an embodiment of a method for using a multifunctional test platform of the present invention.

[0046] Fig.10 It is a schematic diagram of the third control mode in the embodiment of the method for using a multifunctional test platform of the present invention.

[0047] In the figure: 1. platform base plate; 2. mounting seat; 21. mounting interface; 22. sliding beam; 23. mounting table; 231. slide groove; 24. mounting plate; 3. test piece; 4. movable platform; 41. movable connecting plate; 42. actuating mechanism; 421. actuator; 422. controller; 5. Hooke hinge; 51. fixed seat; 52. rotating column; 53. hinged seat; 6. expansion mounting plate. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] The embodiments of the present application provide a multifunctional testing platform and a method of use, which can solve the problem in the prior art that, during on-site use, the actual force boundaries of the test piece are relatively complex, often not just tension, compression or compression and shear, making it difficult to effectively correspond the reliability of the test piece in actual application with the existing test results, and there are certain hidden dangers in use.

[0050] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, on the one hand, the present application provides a multifunctional test platform, which includes:

[0051] Platform bottom plate 1;

[0052] A mounting seat 2, which is arranged on the platform bottom plate 1, and a detachable mounting interface 21 is provided on the mounting seat 2, and the mounting interface 21 is used to be fixedly or rotatably connected to one end of the test piece 3;

[0053] The movable platform 4 includes a movable connecting plate 41 and an actuating mechanism 42 . The fixed end of the actuating mechanism 42 is connected to the mounting seat 2 , and the movable end is connected to the movable connecting plate 41 . The movable connecting plate 41 is used to connect to the other end of the test piece 3 .

[0054] When installing the multifunctional test platform, the mounting seat 2 is arranged on the platform bottom plate 1, and a detachable mounting interface 21 is provided on the mounting seat 2. The mounting interface 21 is used to be fixedly or rotatably connected to one end of the test piece 3. The movable platform 4 includes a movable connecting plate 41 and an actuating mechanism 42. The fixed end of the actuating mechanism 42 is connected to the mounting seat 2, and the movable end is connected to the movable connecting plate 41. The movable connecting plate 41 is used to be connected to the other end of the test piece 3. According to the expected test type, the two ends of the test piece 3 are connected to the movable connecting plate 41 and the mounting seat 2 respectively, and the test parameters are determined. According to the test parameters, the movable connecting plate 41 is driven to move by the actuating mechanism 42. Since the displacement of the movable connecting plate 41 can be determined according to the expected test type, a variety of different tests can be carried out on the same platform, and the use state of the test piece 3 can be better and more realistically simulated. This solves the problem that the actual force boundary of the test piece in the field use in the prior art is relatively complex, and is often not just tension, compression or compression and shear, which makes it difficult for the reliability of the test piece in actual application to effectively correspond to the existing test results, and there are certain hidden dangers in use.

[0055] In this case, the multifunctional test platform can complete tests on the multi-degree-of-freedom tension, compression, bending, shear and torsion performance of structural components. It has the ability to accurately reproduce waveforms such as sine waves, random waves, and seismic waves. It can complete mid-bearing damper performance tests, conventional viscous damper performance tests, metal damper coupling tests, horizontal unidirectional vibration tests, horizontal bidirectional vibration tests, six-degree-of-freedom excitation tests, expansion joint wheel load tests, and bridge orthotropic plate performance tests.

[0056] In this example, there is a set distance between the movable connecting plate 41 and the end of the platform bottom plate 1 away from the mounting seat 2, so that a position for temporary installation work can be reserved.

[0057] like Figure 1 , Figure 2 and Figure 6 As shown, in some optional embodiments, the actuating mechanism 42 includes a plurality of actuating units, one end of which is arranged at intervals along the circumference of the movable connecting plate 41, and the other end is connected to the mounting seat 2, and the actuating unit includes:

[0058] Two sets of actuators 421, one end of the actuator 421 is rotatably connected to the mounting seat 2, and the other end is rotatably connected to the movable connecting plate 41, and the spacing between the ends of the two sets of actuators 421 connected to the mounting seat 2 is smaller than the spacing between the ends connected to the movable connecting plate 41;

[0059] The driving unit is used to drive the actuator 421 to move so as to adjust the spatial position of the movable connecting plate 41 .

[0060] In this embodiment, the specific structure of the actuating mechanism 42 is described. The actuating mechanism 42 includes a plurality of actuating units. One end of the plurality of actuating units is arranged at intervals along the circumference of the movable connecting plate 41, and the other end is connected to the mounting seat 2. The actuating unit includes two groups of actuators 421 and a driving unit. One end of the actuator 421 is rotatably connected to the mounting seat 2, and the other end is rotatably connected to the movable connecting plate 41. The spacing between the ends of the two groups of actuators 421 connected to the mounting seat 2 is smaller than the spacing between the ends connected to the movable connecting plate 41. The driving unit is used to drive the actuator 421 to move so as to adjust the spatial position of the movable connecting plate 41. The structure is simple and easy to manufacture.

[0061] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in some optional embodiments, the movable connecting plate 41 and the mounting seat 2 are both provided with a Hooke's hinge 5 matching the number of the actuating units, the Hooke's hinge 5 is rotatably connected to the two groups of actuators 421, the Hooke's hinge 5 on the mounting seat 2 is arranged corresponding to the actuating units, and the Hooke's hinge 5 on the movable connecting plate 41 is rotatably connected to the two groups of actuators 421 close to each other in two adjacent actuating units.

[0062] In this embodiment, the movable connecting plate 41 and the mounting seat 2 are both provided with a Hooke's hinge 5 matching the number of the actuating units, the Hooke's hinge 5 is rotatably connected to the two groups of actuators 421, the Hooke's hinge 5 on the mounting seat 2 is arranged corresponding to the actuating unit, the Hooke's hinge 5 on the movable connecting plate 41 is rotatably connected to the two groups of actuators 421 close to each other in two adjacent actuating units, the connection structure is stable, and the movement process is safer.

[0063] In this example, the actuating mechanism 42 includes three groups of actuating units, and two groups of actuators 421 close to each other in two adjacent actuating units are connected to one of the Hooke's hinges 5 on the movable connecting plate 41 .

[0064] like Figure 6 and Figure 7 As shown, in some optional embodiments, the Hooke's hinge 5 includes:

[0065] A fixing seat 51, on which two mounting holes are arranged at intervals;

[0066] Two rotating posts 52, the rotating posts 52 are rotatably disposed in the mounting holes, and the ends of the rotating posts 52 extend out of the mounting holes;

[0067] The hinge seat 53 corresponding to the rotating column 52 is disposed at one end of the rotating column 52 extending out of the mounting hole and is rotatably connected to the actuator 421 .

[0068] In this embodiment, the structure of the Hooke's joint 5 is specifically described. The Hooke's joint 5 includes a fixed seat 51, two rotating columns 52 and two articulated seats 53, wherein two mounting holes are arranged at intervals on the fixed seat 51, the rotating column 52 is correspondingly rotatably arranged in the mounting hole, and the end portion extends out of the mounting hole, the articulated seat 53 is arranged corresponding to the rotating column 52, and is arranged at one end of the rotating column 52 extending out of the mounting hole, and is rotatably connected to the actuator 421, and the connection effect is better. Compared with the Hooke's joint 5, the ball joint is not as stable, and its own weight may cause torsion around the axis. The torsion around the axis may cause the oil circuit of the drive unit to be subjected to pulling force, resulting in structural damage.

[0069] like Figure 2 and Figure 6 As shown, in some optional embodiments, the actuator 421 is a telescopic rod, and the driving unit includes a controller 422 correspondingly arranged on the actuator 421, and the controller 422 is used to drive the actuator 421 to extend and rotate to adjust the spatial position of the movable connecting plate 41.

[0070] In this embodiment, the actuator 421 is a telescopic rod, and the driving unit includes a controller 422 correspondingly arranged on the actuator 421. The controller 422 is used to drive the actuator 421 to extend and rotate to adjust the spatial position of the movable connecting plate 41. The structure is simple and easy to manufacture.

[0071] like Figure 1 , Figure 2 and Figure 4 As shown, in some optional embodiments, the mounting base 2 includes:

[0072] A mounting platform 23, which is arranged on the platform bottom plate 1, and a slide groove 231 is provided on the mounting platform 23;

[0073] The sliding beam 22 is slidably disposed on the sliding groove 231 , and a mounting interface 21 is disposed on the sliding beam 22 .

[0074] In this embodiment, the specific structure of the mounting base 2 is described, and the mounting base 2 includes a mounting platform 23 and a sliding beam 22, wherein the mounting platform 23 is arranged on the platform bottom plate 1, and a slide groove 231 is provided on the mounting platform 23, and the sliding beam 22 is slidably arranged on the slide groove 231, and a mounting interface 21 is provided on the sliding beam 22. The position of the sliding beam 22 can be changed to adapt to test pieces 3 of different lengths, thereby improving the applicability of the multifunctional test platform.

[0075] like Figure 1 , Figure 2 and Figure 3 As shown, in some optional embodiments, a mounting plate 24 is provided on one side of the mounting platform 23 close to the movable platform 4 , and the longitudinal cross-sectional area of ​​the mounting plate 24 is larger than the longitudinal cross-sectional area of ​​the mounting platform 23 .

[0076] In this embodiment, a mounting plate 24 is provided on one side of the mounting platform 23 close to the movable platform 4 . The longitudinal cross-sectional area of ​​the mounting plate 24 is larger than that of the mounting platform 23 , so that the actuator 421 can be easily installed.

[0077] In this example, an extended mounting plate 6 is further provided on the mounting plate 24 to further increase the available mounting area and facilitate the installation of the actuator 421 .

[0078] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, on the other hand, the present application also provides a method for using a multifunctional test platform, which is implemented using the multifunctional test platform described above, including:

[0079] According to the expected test type, the two ends of the test piece 3 are connected to the movable connecting plate 41 and the mounting seat 2 respectively, and the test parameters are determined;

[0080] According to the test parameters, the actuating mechanism 42 is used to drive the movable connecting plate 41 to move.

[0081] When installing the multifunctional test platform, the mounting seat 2 is arranged on the platform bottom plate 1, and a detachable mounting interface 21 is provided on the mounting seat 2. The mounting interface 21 is used to be fixedly or rotatably connected to one end of the test piece 3. The movable platform 4 includes a movable connecting plate 41 and an actuating mechanism 42. The fixed end of the actuating mechanism 42 is connected to the mounting seat 2, and the movable end is connected to the movable connecting plate 41. The movable connecting plate 41 is used to be connected to the other end of the test piece 3. According to the expected test type, the two ends of the test piece 3 are connected to the movable connecting plate 41 and the mounting seat 2 respectively, and the test parameters are determined. According to the test parameters, the movable connecting plate 41 is driven to move by the actuating mechanism 42. Since the displacement of the movable connecting plate 41 can be determined according to the expected test type, a variety of different tests can be carried out on the same platform, and the use state of the test piece 3 can be better and more realistically simulated. This solves the problem that the actual force boundary of the test piece in the field use in the prior art is relatively complex, and is often not just tension, compression or compression and shear, which makes it difficult for the reliability of the test piece in actual application to effectively correspond to the existing test results, and there are certain hidden dangers in use.

[0082] In some optional embodiments, the method of using the actuating mechanism 42 to drive the movable connecting plate 41 to move according to the test parameters includes:

[0083] Determine the desired spatial position of the movable connecting plate 41 according to the test parameters;

[0084] Obtaining a theoretical adjustment amount of the actuating mechanism 42 according to the desired spatial position of the movable connecting plate 41;

[0085] According to the theoretical adjustment amount of the actuating mechanism 42 and the actual spatial position of the movable connecting plate 41, the motion deviation value of the actuating mechanism 42 is obtained;

[0086] According to the theoretical adjustment amount of the actuating mechanism 42 and the motion deviation value of the actuating mechanism 42 , the actual adjustment amount of the actuating mechanism 42 is obtained and adjusted.

[0087] In this embodiment, the expected spatial position of the movable connecting plate 41 is determined according to the test parameters, and the theoretical adjustment amount of the actuating mechanism 42 is obtained according to the expected spatial position of the movable connecting plate 41. The motion deviation value of the actuating mechanism 42 is obtained according to the theoretical adjustment amount of the actuating mechanism 42 and the actual spatial position of the movable connecting plate 41. The actual adjustment amount of the actuating mechanism 42 is obtained according to the theoretical adjustment amount of the actuating mechanism 42 and the motion deviation value of the actuating mechanism 42, and adjustments are made. In this way, the deviation value in the motion can be easily eliminated, thereby improving the accuracy of the test.

[0088] In some optional embodiments, the method of using the actuating mechanism 42 to drive the movable connecting plate 41 to move according to the test parameters includes:

[0089] Determine the desired force and / or desired displacement for adjusting the movable connecting plate 41 to the desired spatial position according to the test parameters;

[0090] The detected deviation of the corresponding force and / or displacement is obtained, and the actual input force and / or actual input displacement is obtained according to the expected force and / or expected displacement and the deviation of the corresponding force and / or displacement.

[0091] In this embodiment, based on the test parameters, the expected force and / or expected displacement for adjusting the movable connecting plate 41 to the expected spatial position is determined, the deviation of the detected stress and / or displacement is obtained, and based on the expected force and / or expected displacement, and the deviation of the stress and / or displacement, the actual input force and / or actual input displacement is obtained, the type of input parameters is determined, and the adjustment method is more accurate.

[0092] like Figure 8 , Fig. 9 and Fig.10 As shown, in this example, the control methods can be divided into three types. The first type is posture control, where the user inputs the desired displacement parameter (motion posture), such as sinusoidal motion in the X direction. The motion parameter is transmitted to the motion control computer, which calculates the motion displacement of the six actuators 421 through kinematic inverse solution. Then, the motion control computer drives six servo valves according to the desired displacement and actual displacement feedback of the six actuators 421 to achieve closed-loop position control of the six actuators 421, so that the six actuators 421 reach the required displacement and the desired motion posture.

[0093] The second type is force control, which adds an external force loop on the basis of posture control, and uses the feedback signal of the force sensor to correct the input of the position servo loop to complete force tracking control. The control process is for the user to input the desired force signal, such as a sinusoidal force curve. The motion parameters are transmitted to the motion control computer, and then the force controller of the servo control software calculates the correction amount of the loading platform relative to the mid-position posture according to the loading force data collected by the force sensor as the new desired posture for posture control; then, the posture loop controls the upper platform to the new posture, so that the power platform reaches the desired motion posture to eliminate the force deviation, and then the power platform realizes the tracking of the force signal.

[0094] The third type is force / displacement hybrid control. Through the actual working environment of the test piece 3, one or more degrees of freedom can be selected from the six degrees of freedom for posture control, and the other degrees of freedom are controlled by force. The basic principle is the same as the aforementioned posture control and force control principles. Among them, S and IS are selection matrices with opposite values, which determine whether each degree of freedom adopts position or force control. The above conversion matrix includes a degree of freedom selection matrix, that is, the degree of freedom for posture control and the degree of freedom for force control are selected. In essence, force control can include posture control. When the expected force signal is set to a constant value of 0, if the test piece 3 has no contact with the environment, at this time, the force control system will degenerate into a posture control system. Therefore, these two control strategies can be switched smoothly without impact.

[0095] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0096] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0097] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A multifunctional test platform, characterized in that: include: Platform bottom plate (1); A mounting seat (2) disposed on the platform bottom plate (1), the mounting seat (2) being provided with a detachable mounting interface (21), the mounting interface (21) being used for fixedly or rotatably connecting to one end of the test piece (3); The movable platform (4) comprises a movable connecting plate (41) and an actuating mechanism (42), wherein the fixed end of the actuating mechanism (42) is connected to the mounting seat (2), and the movable end is connected to the movable connecting plate (41), and the movable connecting plate (41) is used to be connected to the other end of the test piece (3).

2. A multifunctional test platform as claimed in claim 1, characterized in that: The actuating mechanism (42) comprises a plurality of actuating units, one end of each of the actuating units being arranged at intervals along the circumference of the movable connecting plate (41) and the other end of each of the actuating units being connected to the mounting seat (2), the actuating units comprising: Two groups of actuators (421), one end of the actuator (421) is rotatably connected to the mounting seat (2), and the other end is rotatably connected to the movable connecting plate (41), and the spacing between the ends of the two groups of actuators (421) connected to the mounting seat (2) is smaller than the spacing between the ends connected to the movable connecting plate (41); A driving unit is used to drive the actuator (421) to move so as to adjust the spatial position of the movable connecting plate (41).

3. A multifunctional test platform as claimed in claim 2, characterized in that: The movable connecting plate (41) and the mounting seat (2) are both provided with Hooke's hinges (5) matching the number of the actuating units; the Hooke's hinges (5) are rotatably connected to the two groups of actuators (421); the Hooke's hinges (5) on the mounting seat (2) are arranged corresponding to the actuating units; the Hooke's hinges (5) on the movable connecting plate (41) are rotatably connected to the two groups of actuators (421) close to each other in two adjacent actuating units.

4. A multifunctional test platform as claimed in claim 3, characterized in that: The Hooke's hinge (5) comprises: A fixing seat (51) having two mounting holes spaced apart thereon; Two rotating columns (52), the rotating columns (52) being rotatably arranged in the mounting holes correspondingly, and ends of the rotating columns (52) extending out of the mounting holes; A hinge seat (53) is arranged corresponding to the rotating column (52), which is arranged at one end of the rotating column (52) extending out of the mounting hole and is rotatably connected to the actuator (421).

5. A multifunctional test platform as claimed in claim 2, characterized in that: The actuator (421) is a telescopic rod, and the driving unit comprises a controller (422) correspondingly arranged on the actuator (421), and the controller (422) is used to drive the actuator (421) to extend and rotate so as to adjust the spatial position of the movable connecting plate (41).

6. A multifunctional test platform as claimed in claim 1, characterized in that: The mounting seat (2) comprises: A mounting platform (23) is arranged on the platform bottom plate (1), and a slide groove (231) is provided on the mounting platform (23); A sliding beam (22) is slidably disposed on the sliding groove (231), and the mounting interface (21) is provided on the sliding beam (22).

7. A multifunctional test platform as claimed in claim 6, characterized in that: A mounting plate (24) is provided on one side of the mounting platform (23) close to the movable platform (4); the longitudinal cross-sectional area of ​​the mounting plate (24) is larger than the longitudinal cross-sectional area of ​​the mounting platform (23).

8. A method for using a multifunctional test platform, characterized in that: The method is implemented by using a multifunctional test platform as claimed in any one of claims 1 to 7, comprising: According to the expected test type, the two ends of the test piece (3) are connected to the movable connecting plate (41) and the mounting seat (2) respectively, and the test parameters are determined; According to the test parameters, the actuating mechanism (42) is used to drive the movable connecting plate (41) to move.

9. The method for using the multifunctional test platform according to claim 8, characterized in that: The method of using the actuating mechanism (42) to drive the movable connecting plate (41) to move according to the test parameters comprises: Determining the desired spatial position of the movable connecting plate (41) according to the test parameters; Obtaining a theoretical adjustment amount of the actuating mechanism (42) according to the expected spatial position of the movable connecting plate (41); Obtaining a motion deviation value of the actuating mechanism (42) according to a theoretical adjustment amount of the actuating mechanism (42) and an actual spatial position of the movable connecting plate (41); According to the theoretical adjustment amount of the actuating mechanism (42) and the motion deviation value of the actuating mechanism (42), the actual adjustment amount of the actuating mechanism (42) is obtained and adjusted.

10. The method for using the multifunctional test platform according to claim 8, characterized in that: The method of using the actuating mechanism (42) to drive the movable connecting plate (41) to move according to the test parameters comprises: Determining, based on the test parameters, a desired force and / or a desired displacement for adjusting the movable connecting plate (41) to a desired spatial position; The detected deviation of the corresponding force and / or displacement is obtained, and the actual input force and / or actual input displacement is obtained according to the expected force and / or expected displacement and the deviation of the corresponding force and / or displacement.

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