A tri-axial space test apparatus and method

Abstract

The application discloses a three-axis space test device and a test method, which comprise a support assembly, a motion assembly and a guide rail assembly, wherein the support assembly comprises a base, a first support rod arranged on the base and a second support rod arranged on the base; the motion assembly comprises a transverse moving rod in sliding connection with the first support rod and the second support rod, a sliding block in sliding connection with the transverse moving rod and a vertical rod arranged on the sliding block; and the guide rail assembly is arranged on the motion assembly. The application designs a three-axis space device which can be used for sensor test, improves test precision and test efficiency, and establishes a set of motion sensor test method, data calculation method and evaluation standard, which is suitable for various sensor tests, fills part of the vacancy of sensor simulation test and is suitable for various sensor tests.

Description

Technical Field

[0001] This invention relates to the technical field of testing equipment, and more particularly to a triaxial spatial testing device and testing method. Background Technology

[0002] Currently, the calibration and testing of detection sensors (such as ultrasonic, millimeter-wave, and IMU sensors) installed in automobiles or intelligent mobile vehicles (or robots) both domestically and internationally are based on simulation testing or post-assembly testing on actual vehicles (or machines). Both testing methods require the construction of multiple test environments (simulated scenario environments and actual test environments), simulating various test conditions, collecting test data, and then analyzing, processing, and correcting the relevant sensor parameters and layout.

[0003] The existing technology has the following drawbacks:

[0004] Large simulation results: There is a large gap between sensor simulation tests and actual tests. This is mainly due to the sensor's own errors (such as detection accuracy, heat generation, etc.) or the test scenario environment being unable to be simulated in the simulation environment or the simulation results being inaccurate. As a result, the final test results have large errors and cannot obtain effective test data.

[0005] Low actual testing efficiency: After the relevant sensors under test are installed on the actual vehicle (or machine), their positions are relatively fixed. During the testing process, any changes in the sensor's position or orientation require disassembly and reassembly, or the fabrication of corresponding mounting brackets. This severely impacts the testing progress and reduces testing efficiency. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0007] In view of the problems existing in the above-mentioned triaxial space testing equipment and testing methods, the present invention is proposed.

[0008] Therefore, the purpose of this invention is to provide a triaxial spatial testing device and testing method.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a triaxial space testing device, comprising: a support assembly including a base, a first support rod disposed on the base, and a second support rod disposed on the base; a motion assembly including a transverse rod slidably connected to the first and second support rods, a sliding block slidably connected to the transverse rod, and a vertical rod disposed on the sliding block; and a guide rail assembly disposed on the motion assembly.

[0010] As a preferred embodiment of the triaxial space testing device of the present invention, the guide rail assembly includes a first guide rail disposed on a first support rod and a second support rod, a second guide rail disposed on a horizontal moving rod, and a third guide rail disposed on a vertical rod. An adjustment block is slidably connected to the third guide rail, and a transmission component is disposed in the first guide rail, the second guide rail, and the third guide rail.

[0011] In a preferred embodiment of the triaxial spatial testing device of the present invention, the transmission component includes a first transmission wheel disposed within the first guide rail, the second guide rail, and the third guide rail; a second transmission wheel disposed within the first guide rail, the second guide rail, and the third guide rail; and a transmission belt disposed on the first transmission wheel and the second transmission wheel.

[0012] The first, second, and third guide rails are all equipped with drive motors.

[0013] In a preferred embodiment of the triaxial spatial testing device of the present invention, a supporting base plate is provided on the sliding block, an auxiliary connecting rod is provided on the supporting base plate, a horizontal rod is provided on the first support rod and the second support rod, a guide rail protrusion is provided on the horizontal rod, the end of the auxiliary connecting rod is slidably connected to the guide rail protrusion, and a top rod is provided between the auxiliary connecting rod and the vertical rod.

[0014] In a preferred embodiment of the triaxial spatial testing device of the present invention, the top rod includes a first connecting block connected to an auxiliary connecting rod, a second connecting block connected to a vertical rod, and a deflector disposed between the first and second connecting blocks.

[0015] The deflector includes a first connecting block disposed at the end of the first connecting block, a second connecting block disposed at the end of the second connecting block, and a first locking shaft disposed on the first connecting block and the second connecting block, wherein a transfer component is disposed on the first locking shaft.

[0016] As a preferred embodiment of the triaxial space testing device of the present invention, the transfer component includes an intermediate block disposed on a first locking shaft, a second locking shaft disposed on the intermediate block, and a first transfer ear plate disposed near the first connecting block. The first transfer ear plate is rotatably connected to the second locking shaft, and a second transfer ear plate is rotatably connected to the second locking shaft near the second connecting block. The first transfer ear plate and the second transfer ear plate are rotatably connected.

[0017] As a preferred embodiment of the triaxial space testing device of the present invention, wherein: a connecting plate is provided at the lower end of the first connecting block, an alignment plate is provided at the lower end of the second connecting block, a linkage is provided between the connecting plate and the alignment plate, the linkage includes a first sector gear rotatably connected to the connecting plate, a second sector gear provided on the alignment plate, and a fastening rod connected between the first sector gear and the second sector gear, and a steering component is provided on the connecting plate.

[0018] As a preferred embodiment of the triaxial spatial testing device of the present invention, the steering component includes a first rotating plate rotatably connected to the connecting plate, a second rotating plate rotatably connected to the alignment plate, and a driving component disposed at the rear end of the first rotating plate. The driving component includes a motor connected to the first rotating plate. A rotating component is disposed between the vertical rod and the supporting base plate. The rotating component includes a semi-circular plate disposed at the lower end of the vertical rod and a semi-circular groove formed on the supporting base plate. A telescopic rod is disposed between the semi-circular plate and the vertical rod.

[0019] As a preferred embodiment of the triaxial spatial testing device of the present invention, the transverse rod comprises a plurality of splicing blocks that are sequentially connected end to end and rotate with each other. One end of each splicing block has a protruding ring, and the other end of each splicing block has a mating groove that mates with the protruding ring. A rotating gear is provided on the protruding ring, a toggle piece is provided in the mating groove, and a wing plate is provided at the lower end of the toggle piece. The wing plate mates with the rotating gear.

[0020] This invention also discloses a testing method for a triaxial spatial testing device, including,

[0021] Install the above-mentioned triaxial space testing equipment in place and collect data from the equipment to be tested;

[0022] Organize test data and record the set acceleration 'a' of the triaxial spatial testing equipment. xd Record the X-axis acceleration a output by the device under test, along with the motion stroke. xt ;

[0023] Change the set acceleration a xd Perform the same test and record the data;

[0024] The following formula is used to calculate the data fit degree n, and then compared with the acceptable standard value:

[0025]

[0026] The value of n ranges from -1 to 1.

[0027] The beneficial effects of this invention are as follows: This invention designs a three-axis spatial device that can be used for sensor testing, which improves testing accuracy and efficiency, and establishes a set of motion sensor testing methods, data calculation methods and evaluation criteria, which are applicable to the testing of various sensors and fill some gaps in sensor simulation testing. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0029] Figure 1 This is a schematic diagram of the overall structure of the triaxial space testing device of the present invention.

[0030] Figure 2 This is a rear view schematic diagram of the overall structure of the triaxial space testing device of the present invention.

[0031] Figure 3 This is a schematic diagram of the transmission component of the triaxial space testing device of the present invention.

[0032] Figure 4 This is a schematic diagram of the top rod structure of the triaxial space testing device of the present invention.

[0033] Figure 5 This is an exploded view of the top rod connection structure of the triaxial space testing equipment of the present invention.

[0034] Figure 6 This is a schematic diagram of the splicing structure of the splicing blocks in the triaxial space testing device of the present invention.

[0035] Figure 7 This is an exploded view of the rotating component structure of the triaxial space testing device of the present invention. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0040] Example 1

[0041] Reference Figure 1-3 This invention discloses a triaxial space testing device, including a support assembly 100. In this embodiment, the support assembly 100 includes a base, which is a flat plate-shaped support structure. A first support rod 101 is also provided on the base, which is arranged along the length of the base. A second support rod 102 is also provided on the base. The first support rod 101 and the second support rod 102 have the same length and are arranged in the same way. The first support rod 101 and the second support rod 102 are parallel to each other.

[0042] Furthermore, the present invention also includes a motion component 200. In this embodiment, the motion component 200 includes a transverse rod 201 that is slidably connected to the first support rod 101 and the second support rod 102. The transverse rod 201 is horizontally disposed on the first support rod 101 and the second support rod 102 and is arranged parallel to the base. At the same time, the transverse rod 201 can slide along the length direction of the first support rod 101 and the second support rod 102 and always remains horizontal during sliding.

[0043] Furthermore, a sliding block 202 is slidably connected to the transverse rod 201. The sliding block 202 can slide along the length of the transverse rod 201. At the same time, a groove is opened at the lower end of the sliding block 202. A protruding long strip block that cooperates with the groove is provided on the transverse rod 201 to guide the sliding of the sliding block 202. A vertical rod 203 is also provided on the sliding block 202. The vertical rod 203 is set in the vertical direction and is always perpendicular to the upper surface of the sliding block 202, thus forming a three-dimensional test support.

[0044] Furthermore, the present invention also includes a guide rail assembly 204. In this embodiment, the guide rail assembly 204 is disposed on the motion assembly 200. In this embodiment, the guide rail assembly 204 includes a first guide rail 204a disposed on the first support rod 101 and the second support rod 102. The first guide rail 204a is disposed along the length direction of the first support rod 101, thereby allowing the transverse rod 201 to slide. A second guide rail 204b is also disposed on the transverse rod 201. The second guide rail 204b allows the sliding block 202 to slide along the length direction of the transverse rod 201. A third guide rail 204c is also disposed on the vertical rod 203 along the length direction of the vertical rod 203. An adjustment block 205 is slidably connected to the third guide rail 204c, allowing the adjustment block 205 to slide along the vertically disposed vertical rod 203.

[0045] Furthermore, a transmission component 300 is provided in each of the first guide rail 204a, the second guide rail 204b, and the third guide rail 204c. In this embodiment, the transmission component 300 includes a first transmission wheel 301 disposed in the first guide rail 204a, the second guide rail 204b, and the third guide rail 204c; a second transmission wheel 302 disposed in the first guide rail 204a, the second guide rail 204b, and the third guide rail 204c; and a transmission belt 303 disposed on the first transmission wheel 301 and the second transmission wheel 302. The rotation of the first transmission wheel 301 can be achieved through the transmission belt. 303 transmits to the second transmission wheel 302, while the sliding block is set on the transmission belt 303, and the adjusting block 205 is also set on the transmission belt 303. A block is also set at the end of the transverse rod 201 near the first support rod 101 and the second support rod 102. The block is set on the transmission belt 303, and a transmission motor 304 is set on the first guide rail 204a, the second guide rail 204b and the third guide rail 204c. Thus, by starting the transmission motor 304 at different positions, the transverse rod 201, the sliding block 202 and the adjusting block 205 can be driven to slide respectively.

[0046] Furthermore, a support base plate 400 is provided on the sliding block, an auxiliary connecting rod 401 is provided on the support base plate 400, a horizontal rod 402 is provided on the first support rod 101 and the second support rod 102, a guide rail protrusion 403 is provided on the horizontal rod 402, and the end of the auxiliary connecting rod 401 is slidably connected to the guide rail protrusion 403. A top rod 404 is provided between the auxiliary connecting rod 401 and the vertical rod 203.

[0047] Operation process: The test piece is installed onto the adjustment block 205 using a fixture. The power supply assembly is started, and the transmission motor 304 is operated to drive the movement of the power belts at different positions, thereby controlling the adjustment block 205 to move along the length of the motion assembly 200. The adjustment block 205 can obtain one-dimensional freedom of movement. When the motion assembly 200 moves simultaneously in any two directions, the adjustment block 205 can obtain two-dimensional freedom of movement. When the motion assembly 200 moves simultaneously in three directions, the adjustment block 205 can obtain three-dimensional freedom of movement.

[0048] Example 2

[0049] Reference Figure 4-7 This embodiment differs from the first embodiment in that: in this embodiment, the top rod 404 includes a first connecting block 404a connected to the auxiliary connecting rod 401. The first connecting block 404a is rotatably connected to the upper end face of the auxiliary connecting rod 401, and thus the rotation plane of the first connecting block 404a is a vertical plane. A second connecting block 404b is connected to the vertical rod 203. The second connecting block 404b is rotatably connected to the side wall of the vertical rod 203, and the rotation plane of the second connecting block 404b is also a vertical plane. A deflector 500 is also provided between the first connecting block 404a and the second connecting block 404b. The deflector 500 can control the support angle of the top rod 404, thereby realizing the rotation of the position of the adjusting block 205. When it is necessary to measure data at a poor position, more rotation angles can be satisfied.

[0050] In this embodiment, the deflector 500 includes a first connecting block 501 disposed at the end of the first connecting block 404a, a second connecting block 502 disposed at the end of the second connecting block 404b, and a first retaining shaft 503 disposed on the first connecting block 501 and the second connecting block 502. The first connecting block 501 and the second connecting block 502 have the same shape, both being open hemispherical with a hollow interior. The length direction of the first retaining shaft 503 is aligned with the diameter direction of the hemispherical shape. A transfer member 504 is disposed on the first retaining shaft 503. In this embodiment, the transfer member 504 includes an intermediate block 504a disposed on the first retaining shaft 503, a second retaining shaft 504b disposed on the intermediate block 504a, and a first transfer ear plate 504c disposed near the first connecting block 501. The intermediate block 504a is located at the center of the first retaining shaft 503 and can rotate around the first retaining shaft 503.

[0051] The first transfer ear plate 504c and the second transfer ear plate 505 are rotatably connected. At the same time, a second retaining shaft 504b is provided on the intermediate block 504a. The second retaining shaft 504b extends from the opposite sides of the intermediate block 504a, and its two ends are respectively hinged to the inner sidewall of the first transfer ear plate 504c or the second transfer ear plate 505.

[0052] Furthermore, a connecting plate 506 is provided at the lower end of the first connecting block 501, and an alignment plate 507 is provided at the lower end of the second connecting block 502. A linkage 600 is provided between the connecting plate 506 and the alignment plate 507. The linkage 600 includes a first sector gear 601 rotatably connected to the connecting plate 506, a second sector gear 602 provided on the alignment plate 507, and a fastening rod 603 connected between the first sector gear 601 and the second sector gear 602. The first sector gear 601 meshes with the second sector gear 602, thereby driving the fastening rod 603, which in turn drives the rotation of the second sector gear 602. The hinge position of the fastening rod 603 and the second sector gear 602 is aligned with the hinge position of the second locking shaft 504b.

[0053] Furthermore, a steering component is provided on the connecting plate 506. In this embodiment, the steering component includes a first rotating plate 604 rotatably connected to the connecting plate 506, a second rotating plate 605 rotatably connected to the alignment plate 507, and a driving component 606 disposed at the rear end of the first rotating plate 604. At the same time, a baffle plate is provided at the leading edge of the first sector gear 601 and the second sector gear 602, and extends forward. The purpose is that when the first sector gear 601 is driven by the first rotating plate 604, it will drive the baffle plate to make the second sector gear 602 rotate synchronously, and will not cause the second sector gear 602 to disengage from the first sector gear 601. Furthermore, the driving component 606 includes a motor connected to the first rotating plate 604 to drive the rotation of the first rotating plate 604.

[0054] Preferably, a stepper motor is provided at the hinge position of the second sector gear 602, so as to drive the hinge rotation of the second sector gear 602 and the first sector gear 601.

[0055] Preferably, a rotating component is provided between the vertical rod 203 and the supporting base plate 400. In this embodiment, the rotating component includes a semi-circular plate 700 provided at the lower end of the vertical rod 203 and a semi-circular groove 701 opened on the supporting base plate 400. A telescopic rod 702 is provided between the semi-circular plate 700 and the vertical rod 203, so that the vertical rod 203 can be deflected at a certain angle in the vertical plane by the rotation component.

[0056] Preferably, in this embodiment, the transverse rod 201 comprises several splicing blocks 201a that are sequentially connected end to end and rotate with each other. A protruding ring 201b is provided at one end of the splicing block 201a, and a mating groove 201c that mates with the protruding ring 201b is provided at the other end of the splicing block 201a. A rotating gear 201d is provided on the protruding ring 201b, and a toggle piece 201e is provided in the mating groove 201c. A wing plate 201f is provided at the lower end of the toggle piece 201e, and the wing plate 201f mates with the rotating gear 201d.

[0057] Preferably, a sliding block 607 is slidably connected to the second connecting block 404b, and the sliding block 607 slides along the length direction of the second connecting block 404b. At the same time, a sliding ear plate 608 is also slidably connected to the vertical rod 203. The sliding ear plate 608 is rotatably connected to the sliding block 607, and the rotation plane of the sliding block 607 is vertically arranged. A first mating clamping plate (not shown in the figure) is provided at one end of the sliding ear plate 608 that extends into the vertical rod 203. A second mating clamping plate is rotatably connected to the first mating clamping plate. The rotation of the second mating clamping plate is driven by a motor provided on the first mating clamping plate. Thus, after the first and second mating clamping plates rotate, they can clamp or release the transmission belt 303, thereby finely controlling the position of the transmission belt 303, and thus finely controlling the position of the adjusting block 205.

[0058] The rest of the structure is the same as in Example 1.

[0059] Operation process: During the testing operation, the operator drives the stepper motor to rotate the first sector gear 601 and the second sector gear 602, which in turn drives the alignment plate 507 to rotate, thereby driving the second connecting block 404b, which in turn drives the vertical rod 203 to rotate. The lateral swing of the vertical rod 203 in turn drives the adjusting block 205 to swing laterally, increasing the number of testing directions. When the vertical rod 203 rotates laterally, the operator adjusts the second intermediate plate 505, the first connecting block 404a and the second connecting block 404b to make the sliding block connected to the second connecting block 404b slide up or down, thereby pulling the sliding plate to drive the adjusting block 205 to make fine adjustments in the vertical direction, and thus making precise adjustments to the position of the adjusting block 205.

[0060] Example 2

[0061] This invention also discloses a testing method for a triaxial spatial testing device, comprising the following steps:

[0062] Install the above-mentioned triaxial space testing equipment in place and collect data from the equipment to be tested;

[0063] Organize test data and record the set acceleration 'a' of the triaxial spatial testing equipment.xd Record the X-axis acceleration a output by the device under test, along with the motion stroke. xt ;

[0064] Change the set acceleration a xd Perform the same test and record the data;

[0065] The following formula is used to calculate the data fit degree n, and then compared with the acceptable standard value.

[0066] For example, when this test equipment is used for IMU performance testing, the IMU's XYZ axes are aligned with the XYZ axes of the test equipment and fixed to the adjustment block. Taking the single-axis X-direction as an example, the acceleration 'a' is set by the control component. xd Simultaneously record the X-axis acceleration a output by the IMU with a suitable motion range. xt Increase or decrease the motor acceleration a according to a linear relationship xd Perform the same test and record the corresponding acceleration a. xt The goodness of fit n for the two sets of data is calculated using the following formula:

[0067]

[0068] The value of n ranges from -1 to 1, with positive values ​​representing positive correlation and negative values ​​representing negative correlation. The larger the absolute value, the stronger the correlation and the higher the goodness of fit, which means the higher the accuracy of the device under test. This invention or utility model uses an n value greater than 0.95 as the test pass standard. Under this test method, the accuracy and resolution of IMU and other related sensors can be tested. This embodiment is also applicable to motion measurement sensors such as accelerometers and gyroscopes.

[0069] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0070] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0071] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A triaxial spatial testing device, characterized in that: include, The support assembly (100) includes a base, a first support rod (101) disposed on the base, and a second support rod (102) disposed on the base. The motion assembly (200) includes a transverse rod (201) slidably connected to a first support rod (101) and a second support rod (102), a sliding block (202) slidably connected to the transverse rod (201), and a vertical rod (203) disposed on the sliding block (202); and, A guide rail assembly (204) is disposed on the motion assembly (200); The sliding block (202) is provided with a support base plate (400), the support base plate (400) is provided with an auxiliary connecting rod (401), the first support rod (101) and the second support rod (102) are provided with a horizontal rod (402), the horizontal rod (402) is provided with a guide rail protrusion (403), the end of the auxiliary connecting rod (401) is slidably connected to the guide rail protrusion (403), and a top rod (404) is provided between the auxiliary connecting rod (401) and the vertical rod (203). The top rod (404) includes a first connecting block (404a) connected to the auxiliary connecting rod (401), a second connecting block (404b) connected to the vertical rod (203), and a deflector (500) disposed between the first connecting block (404a) and the second connecting block (404b). The deflector (500) includes a first connecting block (501) disposed at the end of the first connecting block (404a), a second connecting block (502) disposed at the end of the second connecting block (404b), and a first locking shaft (503) disposed on the first connecting block (501) and the second connecting block (502), wherein a transfer component (504) is disposed on the first locking shaft (503). The transverse rod (201) is composed of several splicing blocks (201a) that are connected to each other in a sequential manner. One end of the splicing block (201a) is provided with a protruding ring (201b), and the other end of the splicing block (201a) is provided with a mating groove (201c) that mates with the protruding ring (201b). A rotating gear (201d) is provided on the protruding ring (201b), a toggle piece (201e) is provided in the mating groove (201c), and a wing plate (201f) is provided at the lower end of the toggle piece (201e). The wing plate (201f) is engaged with the rotating gear (201d).

2. The triaxial spatial testing device as described in claim 1, characterized in that: The guide rail assembly (204) includes a first guide rail (204a) on the first support rod (101) and the second support rod (102), a second guide rail (204b) on the transverse rod (201), and a third guide rail (204c) on the vertical rod (203). An adjustment block (205) is slidably connected to the third guide rail (204c). A transmission component (300) is provided in the first guide rail (204a), the second guide rail (204b), and the third guide rail (204c).

3. The triaxial spatial testing device as described in claim 2, characterized in that: The transmission component (300) includes a first transmission wheel (301) disposed in the first guide rail (204a), the second guide rail (204b) and the third guide rail (204c), a second transmission wheel (302) disposed in the first guide rail (204a), the second guide rail (204b) and the third guide rail (204c), and a transmission belt (303) disposed on the first transmission wheel (301) and the second transmission wheel (302). Among them, the first guide rail (204a), the second guide rail (204b) and the third guide rail (204c) are all equipped with drive motors (304).

4. The triaxial space testing device as described in claim 3, characterized in that: The transfer component (504) includes an intermediate block (504a) disposed on a first retaining pin (503), a second retaining pin (504b) disposed on the intermediate block (504a), and a second transfer ear plate (505) disposed near the first connecting block (501). The second transfer ear plate (505) is rotatably connected to the second retaining pin (504b). A first transfer ear plate (504c) is rotatably connected to the second retaining pin (504b) near the first connecting block (501). The first transfer ear plate (504c) is rotatably connected to the second transfer ear plate (505).

5. The triaxial spatial testing device as described in claim 4, characterized in that: The first connecting block (501) has a connecting plate (506) at its lower end, and the second connecting block (502) has an alignment plate (507) at its lower end. A linkage (600) is provided between the connecting plate (506) and the alignment plate (507). The linkage (600) includes a first sector gear (601) rotatably connected to the connecting plate (506), a second sector gear (602) provided on the alignment plate (507), and a fastening rod (603) connected between the first sector gear (601) and the second sector gear (602). A steering component is provided on the connecting plate (506).

6. The triaxial space testing device as described in claim 5, characterized in that: The steering component includes a first rotating plate (604) rotatably connected to the connecting plate (506), a second rotating plate (605) rotatably connected to the alignment plate (507), and a driving component (606) disposed at the rear end of the first rotating plate (604). The driving component (606) includes a motor connected to the first rotating plate (604). A rotating component is disposed between the vertical rod (203) and the supporting base plate (400). The rotating component includes a semi-circular plate (700) disposed at the lower end of the vertical rod (203) and a semi-circular groove (701) opened on the supporting base plate (400). A telescopic rod (702) is disposed between the semi-circular plate (700) and the vertical rod (203).

Images