Auxiliary support device and test device provided with same

Abstract

Provided is a test device provided with an auxiliary support device that is provided together with a telescopic device that moves with multiple degrees of freedom, and that has a mechanism that receives a static load within an allowable eccentric deflection angle. The test device is provided with six sets of actuators (10) which extend and retract between a base (101) and a support table (103), the relative postures of the six sets of actuators (10) are changed at the separation intervals of the six sets of actuators (10) to excite vibration, an auxiliary support device (50) is arranged in parallel at the center of the base and the center of the support table, and the auxiliary support device is provided with a spline joint (60) connected with the base through a cross joint (51); an upper connection base (80) connected to the support table via a cross joint (53) and a second universal joint (84) of a rotation mechanism (85); a ball spline joint (70) which is connected between the spline joint and the upper connection base so as to be telescopic and slidable; a connection intermediate member (83) fixed to the lower part of the upper connection base and positioned between the base and the support table; and an air spring (90) having both ends fixed between the connection intermediate member and the base.

Description

Technical Field

[0001] The present invention relates to a test device including an extension and retraction device capable of extending and retracting with a low driving force. Background Art

[0002] As a test device for an expansion and contraction device that adjusts the separation interval between universal joints provided at both ends using a plurality of driving forces from a driving source, a driving simulator described in Patent Document 1 is known, for example.

[0003] In this driving simulator, six sets of telescopic devices are used to realize six degrees of freedom, such as tilting of the top support platform supporting the vehicle cabin relative to the base (base) in the X direction, Y direction, Z direction, pitch direction, roll direction and yaw direction.

[0004] However, in such a telescopic device, even if the support table is kept stationary, for example, when the test object is heavy, a large driving force needs to be output from the driving source. In particular, the stationary state is not limited to a short time, so a high-output driving source needs to be prepared, which increases the size of the device as a whole and the cost.

[0005] In addition, as an invention for using elastic elements such as air springs to bear static loads in a single-axis telescopic device, there is an invention described in Patent Document 2, for example. However, in a telescopic device that performs activities with multiple degrees of freedom, the air spring is twisted or allows for eccentricity or insufficient deflection, and therefore cannot cope with the movement of the support platform.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2015-33671

[0009] Patent Document 2: Japanese Patent Application No. 2009-130818 Summary of the invention

[0010] Problems to be solved by the invention

[0011] Therefore, an object of the present invention is to provide an auxiliary support device and a test device equipped with the auxiliary support device, wherein the auxiliary support device is provided together with a telescopic device movable in multiple degrees of freedom and has a mechanism for bearing static load without twisting within an allowable eccentric deflection angle.

[0012] Means for solving problems

[0013] One way of inventing an auxiliary support device for solving the above-mentioned problem is an auxiliary support device, which is arranged between a first connected component and a second connected component together with a multi-degree-of-freedom telescopic device, and is characterized in that it has an auxiliary component that generates an auxiliary force to assist the static driving force of the multi-degree-of-freedom telescopic device, and the multi-degree-of-freedom telescopic device has a universal mechanism that can follow the multi-degree-of-freedom activities of one or both of the first connected component and the second connected component.

[0014] One embodiment of the invention of a test device for solving the above-mentioned problems is a test device, wherein at least three sets of telescopic devices are arranged together with the above-mentioned auxiliary support device between a substrate member as the first connected member and a top plate member as the second connected member, the telescopic devices receive a driving force from a driving source, and telescope in the separation direction of the substrate member and the top plate member to change the separation interval for each of the telescopic devices, thereby changing the posture of the top plate member relative to the substrate member, and the test device is characterized in that, in the auxiliary support device, a first universal joint having two degrees of freedom in the X direction and the Y direction is connected to the substrate member, and a second universal joint having three degrees of freedom in the X direction, the Y direction, and the Z direction is connected to the top plate member, and the auxiliary support device has a sliding holding mechanism as a direct-acting joint, and the direct-acting joint is connected to the substrate member and the top plate member together with the auxiliary member that generates the auxiliary force acting in the separation direction of the substrate member and the top plate member, respectively, and moves linearly and slidably relative to each other in the separation direction.

[0015] Effects of the Invention

[0016] Thus, according to one embodiment of the present invention, the auxiliary support device is arranged together with the multi-degree-of-freedom telescopic device between a first connected component (for example, a substrate component) and a second connected component (for example, a top plate component), and can generate an auxiliary force to assist the static driving force of the multi-degree-of-freedom telescopic device having a universal mechanism that can follow the activities of the multiple degrees of freedom.

[0017] In addition, in a test device in which three or more sets of such telescopic devices are provided to change the posture of the top plate component relative to the substrate component, the sliding retaining mechanism cooperates with the direct-acting joint that can slide freely and linearly in the separation direction of these substrate components and the top plate component, thereby assisting the static driving force required by these telescopic devices and reducing the required driving force.

[0018] Therefore, it is possible to provide a test device that can operate the telescopic device including in a stationary state using a driving source with a low driving force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a perspective view showing the appearance of a vibration excitation device as an example of a test device equipped with the expansion and contraction device according to one embodiment of the present invention.

[0020] Figure 2 2 are diagrams showing the vibration excitation device, (a) is a top view thereof, and (b) is a front view thereof.

[0021] Figure 3 It is a partial longitudinal sectional view showing an auxiliary supporting device provided in the vibration exciting device.

[0022] Figure 4 This is a conceptual front view for explaining the operation of the auxiliary support device.

[0023] Figure 5 This is a block diagram showing a control circuit of an air filling amount control device for controlling the operation of the auxiliary supporting device. DETAILED DESCRIPTION

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 to Figure 5 This is a diagram showing a vibration excitation device as an example of a test device according to one embodiment of the present invention.

[0025] exist Figure 1 and Figure 2 In the embodiment, the vibration device (test device) 100 is configured to function as a six-legged member constituting a part of the driving simulator, and is configured such that six sets of actuators (extension devices) 10 are sandwiched between a base (substrate member, base, first connected member) 101 set in a test room or the like and a support platform (top plate member, second connected member) 103 on which a cockpit or the like of a test object is fixed, and are arranged in a manner of supporting each other. The six sets of actuators 10 of the vibration device 100 are respectively extended and retracted according to a control signal from a main computer (not shown) of the driving simulator to adjust the separation interval between the installation parts, thereby realizing the six-degree-of-freedom movement of the support platform 103 relative to the base 101 in the X direction, Y direction, Z direction, pitch direction, roll direction, and yaw direction. Here, in this embodiment, the vibration device 100 having six sets of actuators 10 is described as an example, but it is not limited to this. For example, it is of course possible to support the support platform so that it can be displaced relative to the base by having three or more sets of actuators 10.

[0026] The excitation device 100 is configured to connect and support the two ends of the two sets of actuators 10 on support blocks 101B and 103B, and the support blocks 101B and 103B are located near the apex of a triangle that is opposed to each other at the approximate center of the common base 101 and the support table 103. The excitation device 100 is configured as follows: one of the base 101 and the support table 103 is rotated in a direction that is relatively offset by 60 degrees to three support blocks 101B and 103B, and one end and the other end of the two sets of actuators 10 are arranged on each of the support blocks 101B and 103B. With this structure, the excitation device 100 sets the six sets of actuators 10 in a posture that expands upward in a V shape for every two sets, and by adjusting the separation interval between the two ends of each actuator 10, it is possible to support the support table 103 supported relative to the base 101 while changing to a desired posture or performing excitation in a stable state.

[0027] In addition, in the actuator 10 of the excitation device 100, a cross-axis joint 11 constituting a universal joint is provided on the support block 101B of the base 101, and the device base 15 is supported in a manner that allows its posture relative to the base 101 to be freely changed. A cross-axis joint 13 constituting a universal joint is also provided on the support block 103B of the support platform 103, and an upper end portion 17e of the shaft 17 held on the device base 15 in a manner that allows free sliding in the length direction is supported in a manner that allows its posture relative to the support platform 103 to be freely changed.

[0028] Thus, the vibration device 100 can be supported in such a manner that the posture of the device base 15 of the actuator 10 relative to the base 101 can be freely changed by swinging the cross-axis joint 11 between the base 101 and the device base 15, and similarly, the posture of the shaft 17 of the actuator 10 relative to the support platform 103 can be freely changed by swinging the cross-axis joint 13 between the support platform 103 and the shaft 17. In other words, the vibration device 100 can freely change the posture of the support platform 103 relative to the base 101 by sliding the shaft 17 of the actuator 10 supported via the cross-axis joints 11 and 13 in the forward and reverse directions.

[0029] The actuator 10 rotates forward and reversely using the servo motor 49 according to the control signal from the excitation device 100, thereby causing the shaft 17 to slide in the forward and reverse directions from the base 101 side toward the support platform 103, and the shaft 17 moves forward and backward relative to the base 101 side toward the support platform 103 side to extend and retract the entire length.

[0030] Therefore, in the vibration device 100, according to the extension and retraction of the full length of the actuator 10, the cross-axis joints 11 and 13 on the two end sides are supported in a manner so that the relative postures of the base 101 and the support platform 103 can be freely changed, and the vibration device 100 functions as a vibration device and can achieve 6-degree-of-freedom tilting and vibration movements.

[0031] Furthermore, the vibration excitation device 100 is provided with an auxiliary support device 50 in a manner sandwiched between the base 101 and the support platform 103. The auxiliary support device 50 is configured to be located approximately at the center of the base 101 and the support platform 103, and to assist in supporting the support platform 103 at a desired height relative to the base 101. Here, in the vibration excitation device 100 of the present embodiment, a case where one auxiliary support device 50 is provided is described as an example, but the invention is not limited thereto, and multiple auxiliary support devices 50 may be provided, and in this case, it is preferable to arrange them evenly.

[0032] like Figure 3 As shown, the auxiliary support device 50 is similar to the actuator 10, and a cross shaft joint (first universal joint) 51 is connected to the upper surface of the base 101, and the spline joint 60 is supported so that its posture relative to the base 101 can be freely changed. As described later, the cross shaft joint 51 is provided inside the multi-stage air spring 90 and the upper connecting base 80 together with the ball spline joint 70, and the spline shaft 65 of the ball spline joint 70 is connected to the inner lower surface of the upper flange 82b of the upper connecting base 80. The upper connecting base 80 is provided with an O-ring 89 at the connection part with the air spring 90 and the upper flange 82b to be sealed, and the airtightness of the internal space 90s of the air spring 90 is maintained. Here, the length of the upper connecting base 80 can also be changed or eliminated according to the distance between the support platform 103 and the base 101.

[0033] In addition, a second universal joint 84 composed of a cross-axis joint 53 and a rotation mechanism 85 of a rotary bearing described later is provided on the lower surface of the support platform 103 of the auxiliary support device 50. The second universal joint 84 supports the upper end 65e of the spline shaft (first sliding member) 65 of the ball spline joint 70 slidably held in the longitudinal direction of the spline joint 60 via the upper connecting base 80 so that the posture relative to the support platform 103 can be freely changed. The second universal joint 84 is a joint with three degrees of freedom composed of the cross-axis joint 53 and the rotation mechanism 85, and can follow a large angle (roll, pitch, yaw) of the support platform 103. Here, when the angle to be followed is small, the second universal joint 84 can also use a so-called three-degree-of-freedom spherical joint (bearing).

[0034] In addition, the cross-axis joint 51 provided on the base 101 is a two-degree-of-freedom joint, and the rotational freedom around the telescopic axis is constrained, so the torsional force around the axis caused by the friction force of the rotary joint 85 can be borne by the base 101 via the cross-axis joint 51. Therefore, the air spring 90 connected to the cross-axis joint 51 via the upper connecting base 80 and the ball spline joint 70 can operate without twisting.

[0035] Thus, the air spring 90 and the upper connection base 80 of the auxiliary support device 50 are supported via the cross shaft joint 51, the second universal joint 84 and the ball spline joint 70 so that the posture of the support platform 103 relative to the base 101 is not twisted and can be freely changed.

[0036] The cross-axis joints 51, 53 of the base 101 and the support platform 103 are constructed as so-called universal joints using the cross component 55 as the X-axis and the Y-axis, and the auxiliary support device 50 follows the changes in the relative posture of the base 101 and the support platform 103 of the excitation device 100 in a manner that does not hinder the changes in the relative posture of the support platform 103 relative to the base 101.

[0037] Specifically, the cross component 55 of the cross-axis joint 51, 53, a pair of X-axes 55x are rotatably supported by bearings 57b in a pair of bearings 57 that are separately erected in the X-axis direction on the upper surface of the base 101 and the lower surface of the support platform 103, and a pair of Y-axes 55y of the cross component 55 are rotatably supported by bearings 59b in a pair of bearings 59 that are separately erected in the Y-axis direction on the lower part of the spline joint 60 and the upper part of the upper connecting base 80.

[0038] Thus, the auxiliary support device 50 maintains the X-axis 55x and Y-axis 55y of the cross-axis joints 51, 53 (cross component 55) to be rotatable through the bearings 57, 59 of the base 101 and the support platform 103, and the lower part of the cross component 55 and the spline joint 60 and the upper part of the upper connecting base 80 can swing relative to the base 101 and the support platform 103 so that the relative posture can be changed freely, and can assist in supporting the actuator 10.

[0039] The auxiliary support device 50 includes a housing member 62, and a nut (spline bearing, second sliding member) 71 is fixed to one end of the housing member 62 so that the spline joint 60 on the base 101 side and the spline shaft 65 together form a ball spline joint 70 (for example, manufactured by THK Corporation) and the housing member 62 is fixed to the back of the cross shaft joint 51 on the base 101 side. Although not shown in the figure, the ball spline joint 70 has spline grooves extending in the axial direction and accommodating a plurality of balls so that they can roll, and one of the spline shaft 65 and the nut 71 does not rotate relative to the other, and relative sliding movement is achieved while reducing the load generated when only linear relative movement is performed. Here, in this embodiment, a ball spline joint 70 with less friction is used, but it can also be replaced by a spline structure using sliding.

[0040] In the auxiliary support device 50, the upper connection base 80 on the support table 103 side includes a bottomed cylindrical member 82 to which the upper end portion 65e of the spline shaft 65 of the ball spline joint 70 is fixed, and the cylindrical member 82 is provided so as to be located on the back side of the cross shaft joint 53 on the support table 103 side with a rotating mechanism 85 to be described later interposed therebetween. The upper connection base 80 has the upper end portion 65e of the spline shaft 65 of the ball spline joint 70 fixed to the upper flange 82b of the cylindrical member 82, and the spline shaft 65 is housed in the cylindrical portion 82c.

[0041] The rotating mechanism 85 is configured to include a disk member 86 located at the upper part of the upper connecting base 80, an upper flange 82b of a cylindrical member 82 of the upper connecting base 80 to which the upper end 65e of the spline shaft 65 of the ball spline joint 70 is fixed, and a bearing 87 that couples the disk member 86 and the upper flange 82b of the cylindrical member 82 so as to face each other and to be coaxially rotatable. The bearing 87 of the rotating mechanism 85 couples the outer peripheral surface of a small annular member 87a fixed to the disk member 86 and the inner peripheral surface of a large annular member 87b fixed to the upper flange 82b of the cylindrical member 82 so as to be relatively rotatable, thereby rotatably coupling the upper connecting base 80 (cylindrical member 82) to which the upper end 65e of the spline shaft 65 of the ball spline joint 70 is fixed to the cross shaft joint 53 supported on the support table 103 side.

[0042] Therefore, in addition to allowing (following) the cross-axis joints 51, 53 to freely change the relative posture of the base 101 and the support platform 103 according to the extension and contraction of the actuator 10, the auxiliary support device 50 can also allow the opposing relationship to rotate relative to each other along with the change of the separation interval between the base 101 and the support platform 103 through the rotating mechanism 85, and can maintain the connected support state of the base 101 and the support platform 103.

[0043] In the connected and supported state of the base 101 and the support table 103, the housing member 62 to which the nut 71 of the ball spline joint 70 of the spline joint 60 on the base 101 side is fixed is formed into a cylindrical shape, for example, so that the spline shaft 65 of the ball spline joint 70 can be inserted therein, and the nut 71 and the spline shaft 65 are connected in a relatively slidable manner, thereby maintaining the state in which the spline joint 60 on the base 101 side is connected to the upper connection base 80 on the support table 103 side in a straight posture. That is, the ball spline joint 70 constitutes a sliding holding mechanism that functions as a linear joint.

[0044] Furthermore, the auxiliary support device 50 is configured such that the upper end portion 65e of the spline shaft 65 of the ball spline joint 70 is fixed to the upper flange 82b of the cylindrical member 82 of the upper connection base 80, the spline shaft 65 is accommodated in the cylindrical portion 82c, and the lower disk-shaped connection intermediate member 83 on the cylindrical edge end side of the cylindrical portion 82c of the cylindrical member 82 of the upper connection base 80 is located in the middle of the opposing direction of the base 101 and the support stand 103. The disk-shaped connection intermediate member 83 at the lower portion of the upper connection base 80 (cylindrical member 82) is formed with an opening portion 83a through which the housing member 62 of the spline joint 60 to which the nut 71 of the ball spline joint 70 is fixed can be inserted.

[0045] The auxiliary support device 50 performs rubber sealing on the opening edges of both ends of a roughly cylindrical air spring (a rebound component that functions as an auxiliary component) 90 between the lower surface of the connecting intermediate component 83 at the lower part of the upper connecting base 80 (cylindrical component 82) and the upper surface of the base 101, thereby forming an airtight internal space 90s inside the air spring 90.

[0046] The air spring 90 has elastic outer cylindrical parts 91 to 93 made of elastic material stacked in multiple stages between the base 101 and the support 103 in a parallel direction, and rigid parts 95 having a rigid ring shape are sandwiched between the elastic outer cylindrical parts 91 to 93 and stacked in multiple stages, thereby forming a roughly cylindrical shape constituting the internal space 90s. Here, the air spring 90 is not limited to multiple stages, and can also be a single-stage cylindrical shape in the case of sufficient flexibility. In addition, it is not limited to a cylindrical shape, and can also be formed into a roughly square cylindrical shape with a rectangular cross-section, such as a quadrilateral cross-section, etc., and of course, it can also be other special shapes.

[0047] In addition, the auxiliary support device 50 has a fluid passage 99a in the base 101 that communicates with the internal space 90s of the air spring 90, and an air filling amount control device 99 (see Figure 5 ).like Figure 5 As shown, the air filling amount control device 99 is connected to a general compressor that discharges compressed air, etc., and can detect the filling amount and filling pressure of the compressed air through a general pressure control circuit, and can generate a desired internal pressure in the internal space 90s of the air spring 90. Figure 3 As shown, the lower surface of the air spring 90 side of the connecting intermediate component 83 and the lower surface of the upper flange 82b of the upper connecting base 80 become the pressure-bearing surface of the compressed air, which generates a rebound force as a necessary auxiliary force to push back the support platform 103 with the load weight applied, and the auxiliary force is applied to the top plate 103 via the second universal joint 84.

[0048] Thus, the auxiliary support device 50 can generate a desired internal pressure in the internal space 90s of the air spring 90 through the air filling amount control device 99, generate and apply a repulsive force acting on the base 101 and the support table 103 in the separation direction. For example, by maintaining the internal pressure in the air spring 90 at a desired constant pressure, the support table 103 can be supported in the direction of separating the support table 103 from the base 101 at a constant pressure. In addition, the auxiliary support device 50 can also adjust the internal pressure in the air spring 90 by the air filling amount control device 99 according to the weight of the test object on the support table 103 and support the support table 103 with a desired repulsive force. Here, the air spring 90 generates a repulsive force by filling the internal space 90s with compressed air, but it can also be an auxiliary component as a resilient component, and a spring, elastic rubber, etc. are arranged at multiple locations between the intermediate component 83 and the base 101 to generate and apply a desired constant elastic force. Furthermore, when the load (mounted mass) on the top plate 103 at rest is constant, the air filling amount control device 99 may be omitted and a constant pressure may be sealed (filled and sealed) in the internal space 90s of the air spring 90.

[0049] Therefore, the excitation device 100 can extend and retract the six groups of actuators 10 so that the support platform 103 can perform six-degree-of-freedom tilting and excitation operations relative to the base 101. At this time, the change in the posture of the support platform 103 relative to the base 101 will not be hindered. The auxiliary support device 50 is twisted and will not have an excessively large eccentric angle. The desired auxiliary force (rebound force) can be applied to assist the support of multiple actuators 10.

[0050] In this way, in the excitation device (test device) 100 of this embodiment, the output driving force of multiple actuators 10 can be reduced to perform the same test action. For example, when the support platform 103 is made stationary, the driving force of the actuator 10 can also be reduced to allow the auxiliary support device 50 to assist the support.

[0051] Therefore, in the vibration excitation device 100 , the auxiliary support device 50 can apply a desired repulsive force not only when the actuator 10 is driven but also when it is in a standby state (stationary state), thereby reducing the rated output driving force of the servo motor 49 of the actuator 10 .

[0052] As a result, the driving force required for the servo motors 49 of the plurality of actuators 10 can be reduced, thereby achieving size reduction and cost reduction.

[0053] The scope of the present invention is not limited to the exemplary embodiments illustrated and described, but also includes all embodiments that bring effects equivalent to the purpose of the present invention. Moreover, the scope of the present invention is not limited to the combination of the features of the invention determined by each claim, but can be determined by all desired combinations of specific features among all disclosed features.

[0054] For example, in the description of the present embodiment, an actuator using a servo motor is described as an example, but the present invention can also be applied to a multi-degree-of-freedom telescopic device using other power such as a hydraulic actuator.

[0055] In addition, for the ball spline joint (rolling guide spline joint) 70, other types of spline joints (for example, sliding guide spline joints, etc.) can also be used.

[0056] Explanation of symbols

[0057] 10—actuator (telescopic device), 11, 13—cross shaft joint (universal mechanism), 49—servo motor, 50—auxiliary support device, 51—cross shaft joint (first universal joint), 53—cross shaft joint, 55—cross member, 60—spline joint, 62—housing member, 65—spline shaft (first sliding member), 70—ball spline joint (direct-acting joint, sliding holding mechanism), 71—nut (spline bearing, second sliding member), 80—upper connecting base, 82—cylindrical member, 83—connecting Intermediate component, 84—second universal joint, 85—rotating mechanism, 86—disc component, 87—bearing, 90—air spring (auxiliary component), 90s—inner space, 91~93—elastic outer cylindrical component, 95—rigid component, 99—air filling amount control device, 99a—fluid passage, 100—vibration device (test device), 101—base (substrate component, base, first connected component), 101B, 103B—support block, 103—support platform (top plate component, second connected component).

Claims

1. An auxiliary support device, which is arranged between a first connected member and a second connected member together with a multi-degree-of-freedom telescopic device, characterized in that: An auxiliary component is provided, the auxiliary component generating an auxiliary force to assist the static driving force of the multi-degree-of-freedom telescopic device, the multi-degree-of-freedom telescopic device having a universal mechanism capable of following the multi-degree-of-freedom movement of one or both of the first connected component and the second connected component.

2. The auxiliary support device according to claim 1, characterized in that: As the auxiliary component, an air spring in which an internal space in an elastic material is filled with air is used.

3. The auxiliary support device according to claim 2, characterized in that: A universal joint having two degrees of freedom in the X direction and the Y direction is connected to the first connected member, and a universal joint having three degrees of freedom in the X direction, the Y direction, and the Z direction is connected to the second connected member. The auxiliary support device has a direct-acting joint, which is arranged in the multi-stage air spring of more than two levels that generates the auxiliary force acting on the first connected part and the second connected part in the separation direction, and moves linearly along the separation direction so that the universal joint with two degrees of freedom prevents the torsion of the air spring.

4. The auxiliary support device according to claim 3, characterized in that: The universal joint with three degrees of freedom is composed of a combination of a cross-axis joint and a rotating mechanism.

5. The auxiliary support device according to claim 3, characterized in that: The universal joint with 3 degrees of freedom uses spherical bearings.

6. The auxiliary support device according to claim 3, characterized in that: A spline joint is used as the straight-action joint.

7. A test device, wherein at least three sets of telescopic devices are arranged between a base member as the first connected member and a top plate member as the second connected member together with the auxiliary support device according to any one of claims 1 to 6, the telescopic devices receiving a driving force from a driving source, respectively telescoping in the separation direction of the base member and the top plate member to change the separation interval of each telescopic device, thereby changing the posture of the top plate member relative to the base member, The test device is characterized in that In the auxiliary support device, a first universal joint having two degrees of freedom in the X direction and the Y direction is connected to the base plate component, and a second universal joint having three degrees of freedom in the X direction, the Y direction, and the Z direction is connected to the top plate component. The auxiliary support device has a sliding holding mechanism as a direct-acting joint, and the direct-acting joint is connected to the substrate component and the top plate component respectively together with the auxiliary component that generates the auxiliary force acting in the separation direction of the substrate component and the top plate component, and can move linearly and relatively freely in the separation direction.

8. The test device according to claim 7, characterized in that: A multi-stage air spring having two or more stages is provided as the auxiliary member, and the multi-stage air spring generates a rebound force as the auxiliary force acting in the separation direction of the base plate member and the top plate member, The air spring has the first universal joint provided therein, and is connected to the base member side and the top plate member side so that the repulsive force can act on members connected to the base member side and the top plate member side.

9. The test device according to claim 8, characterized in that A connecting intermediate member is provided, which is located in the middle of the separation direction of the base plate member and the top plate member. The air spring is connected to the connecting intermediate member which is a member on the roof member side.

10. The test device according to claim 8, characterized in that The air spring is configured such that an internal space for accommodating compressed air is formed in an exterior member formed of an elastic material, and the repulsive force applied to the top plate member side is generated according to the amount of compressed air filled in the internal space.

11. The test device according to claim 8, characterized in that: An air filling amount control device is provided for adjusting and controlling the amount of compressed air filled in the internal space of the air spring.

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