Tool device for plate fatigue test

Abstract

The utility model provides a tooling device for a fatigue test of a plate, which is applied to the fatigue test of a bridge deck slab and relates to the technical field of the fatigue test of the plate, the tooling device comprises a first connecting piece, a first supporting piece and a second supporting piece, the first connecting piece comprises a sliding part, a connecting part and a rolling bearing, one end of the sliding part is connected with one end of the connecting part, and the other end of the connecting part is connected with the rolling bearing; rolling bearings are symmetrically arranged on the two sides of the other end of the sliding part, the first supporting piece comprises a first supporting plate, one end of the first supporting plate is vertically fixed to the test platform, an opening is formed in the other end of the first supporting plate, and the other end of the connecting part penetrates through the opening and is connected with one end of a panel; rolling grooves corresponding to the rolling bearings are formed in the sides, away from the panel, of the first supporting plates, the rolling grooves extend vertically, the rolling bearings abut against the rolling grooves and are used for rolling along the rolling grooves, and the second supporting pieces are fixed to the test platform and used for fixing the stiffening ribs. The bridge deck slab fatigue testing device is simple in structure and low in cost, and can reasonably reflect the actual fatigue condition of the bridge deck slab.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plate fatigue test, specifically, a kind of tooling device for plate fatigue test. BACKGROUND

[0002] The fatigue test of plate is a test method for evaluating the ability of materials to resist fatigue failure under repeated or cyclic loading. This test is crucial to ensure the long-term reliability and safety of materials in practical applications, especially in the industries of bridges, aerospace, automobiles, etc.

[0003] In the fatigue test of plate, for example, the fatigue test of bridge deck plate, the existing fatigue test tooling device is too complex in design, resulting in long fatigue test time and high cost, and cannot reasonably reflect the actual fatigue condition of the plate. SUMMARY

[0004] The utility model solves at least one of the above problems.

[0005] To solve the above problems, the utility model provides a kind of tooling device for plate fatigue test, applied to the fatigue test of bridge deck plate, the bridge deck plate includes panel and stiffener, the tooling device for plate fatigue test includes: first connecting piece, first support and second support, the first connecting piece includes sliding part, connecting part and rolling bearing, one end of the sliding part is connected with the one end of the connecting part, the other end of the sliding part is symmetrically provided with the rolling bearing on both sides, the first support includes first support plate, one end of the first support plate is vertically fixed on test platform, the other end of the first support plate is provided with opening, the other end of the connecting part passes through the opening and is connected with one end of the panel, the side of the first support plate away from the panel is respectively provided with the rolling groove corresponding with the rolling bearing, the rolling groove extends vertically, the rolling bearing is in contact with the rolling groove and is used to roll along the rolling groove, the second support is fixed on the test platform and is used to fix the stiffener.

[0006] Optionally, it further includes second connecting piece, the second connecting piece includes clamping groove structure and connecting plate, the connecting plate is arranged on the clamping groove structure and is used to be connected with fatigue testing machine, the clamping groove structure is provided with the first clamping groove matched with the shape of the panel, and the first clamping groove is used to be inserted and fixed with the other end of the panel.

[0007] Optionally, the first support further includes limiting plate, two limiting plates are respectively arranged on the other end of the sliding part on both sides and are connected with the first support plate, and the two limiting plates are respectively matched with the first support plate to form the rolling groove.

[0008] Optionally, the first support further comprises a first bottom plate and a first elbow plate, the first bottom plate is connected with the test platform and is further connected with the first support plate perpendicularly, and the first elbow plate is connected with the first support plate and the first bottom plate perpendicularly respectively.

[0009] Optionally, the second support comprises a second support plate and a second elbow plate, the second support plate is arranged obliquely relative to the test platform and is adapted to the oblique angle of the stiffening rib, and the second support plate is used to be connected with the stiffening rib, the second elbow plate is arranged on both sides of the second support plate in the width direction and is perpendicular to the second support plate, and the bottom ends of the second support plate and the second elbow plate are connected with the test platform.

[0010] Optionally, the second support further comprises a second bottom plate, the second bottom plate is connected with the test platform and is further connected with the bottom ends of the second support plate and the second elbow plate respectively.

[0011] Optionally, the other end of the connecting part is provided with a second clamping groove which is adapted to the shape of the panel, and the second clamping groove is used to be inserted and fixed with one end of the panel.

[0012] Optionally, the first connecting part further comprises a rolling shaft, one end of the rolling shaft is connected with the sliding part, the other end of the rolling shaft is connected with the shaft center of the rolling bearing, or the rolling shaft passes through the sliding part and the two ends of the rolling shaft are connected with the shaft centers of the two rolling bearings respectively.

[0013] Optionally, the connecting part is provided with a threaded hole, and the connecting part is connected with the panel in a threaded mode.

[0014] Optionally, the first bottom plate is provided with a threaded hole, and the first bottom plate is connected with the test platform in a threaded mode.

[0015] The tooling device for the fatigue test of the plate material has the following advantages:

[0016] The first support plate of the first support piece is provided with an opening matched with the width of the connecting part, and symmetrical rolling bearings are arranged on the two sides of the other end of the sliding part, so that the connecting part of the first connecting piece can be connected with the panel through the opening, and the sliding part of the first connecting piece can be slidingly connected with the first support piece through the rolling bearings, the fixing of the panel can be realized, the first support plate is vertically fixed on the test platform through one end, the second support piece is fixed on the test platform, and the second support piece is fixed with the stiffening rib, so that the fixing of the stiffening rib can be realized, the fixing of the whole bridge deck panel can be realized, and then the fatigue test can be performed by using the fatigue testing machine. In addition, the rolling bearing abuts against the rolling groove, the vertical displacement of the rolling bearing can be supported through the rolling groove, and the horizontal displacement of the rolling bearing is limited, so that the horizontal position of the bridge deck panel can be kept relatively fixed while the necessary deformation of the bridge deck panel is allowed when the vertical load is borne, and therefore more reasonable test results can be obtained. The tooling device for the fatigue test of the plate material has the advantages of simple structure, shorter fatigue test time, lower cost, and reasonable reflection of the actual fatigue condition of the bridge deck panel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Figure 1 is a structural schematic view of a tooling device for a fatigue test of a plate material provided by an embodiment of the present application;

[0018] Figure 2 Figure 2 is another structural schematic view of a tooling device for a fatigue test of a plate material provided by an embodiment of the present application;

[0019] Figure 3 Figure 3 is a third structural schematic view of a tooling device for a fatigue test of a plate material provided by an embodiment of the present application;

[0020] Figure 4 Figure 4 is a fourth structural schematic view of a tooling device for a fatigue test of a plate material provided by an embodiment of the present application;

[0021] Figure 5 Figure 5 is a fifth structural schematic view of a tooling device for a fatigue test of a plate material provided by an embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, first connecting piece; 11, sliding part; 12, connecting part; 13, rolling bearing; 14, rolling shaft; 2, first support piece; 21, first support plate; 22, rolling groove; 23, limiting plate; 24, first bottom plate; 25, first elbow plate; 3, second support piece; 31, second support plate; 32, second elbow plate; 33, second bottom plate; 4, panel; 5, stiffening rib; 6, second connecting piece; 61, clamping groove structure; 62, connecting plate; 7, threaded hole. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to make the present application more thorough and complete. It should be understood that the drawings and embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of protection of the present application.

[0025] The term "comprising" and variations thereof as used herein are open-ended, that is "including, but not limited to"; the term "based on" is "based, at least in part, on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", and the like concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units or their mutual dependency.

[0026] It should be noted that the modification of "one" or "multiple" mentioned in the present application is illustrative rather than limiting, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0027] In the fatigue test technology of relevant plates, for example, in the field of bridge engineering, the plate of the bridge deck is mainly an orthotropic plate, which is a load-bearing structure welded by mutually perpendicular stiffening ribs and cover plates. The stiffening ribs are usually U-shaped closed ribs, simply referred to as U ribs. This structure has the advantages of light weight, short construction period, large ultimate bearing capacity, large structure span, fast prefabrication and installation, excellent seismic performance, and the like, and is widely used in various large and medium span bridges. The U ribs and the bridge deck are under the action of wheel load and mainly bear out-of-plane bending stress, which is easy to produce fatigue cracks. The connection details of the U ribs and the bridge deck are one of the typical positions of fatigue cracking of the orthotropic plate structure. The main crack forms of the welding joint between the U ribs and the bridge deck include cracking at the welding root, cracking at the welding toe, cracking at the welding throat and cracking of the U rib web. The cracks at the welding position often seriously reduce the bearing capacity of the structure, and even cause corrosion of the steel plate, reducing the service life of the steel bridge. The orthotropic plate structure bears the lane load during the service period of the bridge, and the welding joint between the bridge deck and the U rib, that is, the fatigue key node, bears the cyclic action and is easy to be damaged by fatigue. At present, the fatigue model test for exploring the fatigue performance and the change rule of the fatigue strength of the key node of the orthotropic plate structure mainly includes the model test of multiple U ribs, single rib, single rib and half U rib combination. These tests are time-consuming, material-consuming, high-cost, high-test-condition-required and complex, and cannot reasonably reflect the stress condition in the actual service process.

[0028] In view of the problems in the above related technologies, such as Figure 1 As shown in the utility model embodiment, a tool device for plate fatigue test is applied to the fatigue test of a bridge deck, the bridge deck comprises a deck 4 and a stiffening rib 5, and the tool device for plate fatigue test comprises a first connecting piece 1, a first supporting piece 2 and a second supporting piece 3. The first connecting piece 1 comprises a sliding part 11, a connecting part 12 and a rolling bearing 13. One end of the sliding part 11 is connected with one end of the connecting part 12. Rolling bearings 13 are symmetrically arranged on both sides of the other end of the sliding part 11. The first supporting piece 2 comprises a first supporting plate 21. One end of the first supporting plate 21 is fixed vertically on a test platform. An opening is formed in the other end of the first supporting plate 21. The other end of the connecting part 12 penetrates through the opening and is connected with one end of the deck 4. The side of the first supporting plate 21 away from the deck 4 is respectively provided with a rolling groove 22 corresponding to the rolling bearing 13. The rolling groove 22 extends vertically. The rolling bearing 13 abuts against the rolling groove 22 and is used for rolling along the rolling groove 22. The second supporting piece 3 is fixed on the test platform and is used for fixing the stiffening rib 5.

[0029] Specifically, the first connecting piece 1 comprises a sliding part 11, a connecting part 12 and rolling bearings 13, one end of the sliding part 11 is fixedly connected with one end of the connecting part 12, and two rolling bearings 13 are symmetrically arranged at the other end of the sliding part 11, that is, the number of the rolling bearings 13 is two, the first supporting piece 2 comprises a first supporting plate 21, one end of the first supporting plate 21 is fixedly arranged on the test platform perpendicularly, the other end of the first supporting plate 21 is provided with an opening with a width adapted to the connecting part 12, and the cross-sectional width of the connecting part 12 is smaller than the cross-sectional width of the sliding part 11, and the cross-sectional width of the sliding part 11 is larger than the width of the opening, so that the other end of the connecting part 12 can pass through the opening and be connected with the panel 4, while the sliding part 11 cannot pass through the opening due to the width, so that the sliding part 11 is clamped at both ends of the opening to achieve the limiting effect. The side of the first supporting plate 21 away from the panel 4 is respectively provided with a rolling groove 22 corresponding to the rolling bearing 13, the number of the rolling grooves 22 corresponds to the number of the rolling bearings 13, and both are two, and the rolling bearing 13 can slide along the rolling groove 22.

[0030] Before the fatigue test is performed, the bridge deck slab needs to be installed on the tooling device for slab fatigue test so as to perform the fatigue test. First, the first supporting piece 2 and the second supporting piece 3 are fixed on the test platform, and the stiffening rib 5 is fixed on the second supporting piece 3, and since the rolling bearing 13 can slide on the rolling groove 22, the first connecting piece 1 can be inserted and passed through the opening of the first supporting piece 2 first, and then adjusted to the same height as the panel 4 through the rolling bearing 13, and finally connected with the connecting part 12 at one end of the panel 4 close to the first supporting piece 2, after the connection, the rolling bearing 13 abuts against the rolling groove 22, so that the bridge deck slab can be fixed on the test platform as a whole to facilitate the test. Alternatively, the first connecting piece 1 is first adjusted to the same height as the panel 4, then inserted and passed through the opening of the first supporting piece 2, and connected with the connecting part 12 at one end of the panel 4 close to the first supporting piece 2, after the connection, the rolling bearing 13 abuts against the rolling groove 22, so that the bridge deck slab can be fixed on the test platform as a whole to facilitate the test, and at this time, since the panel 4 is not deformed by external force, the panel 4 is not moved after installation, that is, it will not be horizontally and vertically displaced, so the corresponding sliding part 11 will not slide on the rolling groove 22.

[0031] When the fatigue test is performed, the fatigue testing machine can be used to apply a load in the vertical direction to the end of the panel 4 away from the first connecting piece 1. At this time, the sliding part 11 is clamped at both ends of the opening because the rolling bearing 13 is in abutment with the rolling groove 22 and the sliding part 11 cannot pass through the opening due to the width. Thus, the horizontal limiting effect of the panel 4 is achieved. During the fatigue test, the panel 4 may be deformed according to the test conditions, i.e., the other end of the panel 4 may be displaced in the vertical direction. At this time, the rolling bearing 13 slides on the rolling groove 22 according to the deformation of the panel 4 to ensure the smooth progress of the test and avoid accidents. The horizontal displacement of the rolling bearing 13 is limited to obtain reasonable test results. That is, the rolling bearing 13 can slide up and down with the panel 4 according to the test conditions, but cannot move horizontally to complete the fatigue test.

[0032] Exemplarily, before the fatigue test is performed, the first support piece 2 and the second support piece 3 are fixed on the test platform, the first connecting piece 1 is connected with the panel 4, and finally the stiffening rib 5 is fixed on the second support piece 3.

[0033] Exemplarily, the connection between the connecting part 12 and the panel 4 and the connection between the second support piece 3 and the stiffening rib 5 are detachable connections, such as threaded connections, pin connections, key connections, bayonet connections, clamp connections, buckle connections, and flange connections. The tooling device for fatigue testing of a panel is suitable for bridge deck panels of various types of stiffening ribs, such as half-U ribs, multiple-U ribs, single ribs, and bridge deck panels with a combination of single ribs and half-U ribs.

[0034] In this embodiment, one end of the sliding part 11 is connected with one end of the connecting part 12, and the first support piece 2 is provided with an opening with a width suitable for the connecting part 12. Thus, the connecting part 12 of the first connecting piece 1 can pass through the opening to be connected with the panel 4, and the sliding part 11 of the first connecting piece 1 can be slidingly connected with the first support piece 2 through the rolling bearing 13, and then one end of the first support plate 21 is vertically fixed on the test platform, and the second support piece 3 is fixed with the stiffening rib 5. Thus, the bridge deck panel can be fixed, and then the fatigue test can be performed by using the fatigue testing machine. In addition, the rolling bearing 13 is in abutment with the rolling groove 22, the vertical displacement of the rolling bearing 13 is supported by the rolling groove 22, and the horizontal displacement of the rolling bearing 13 is limited. Thus, the horizontal position of the bridge deck panel can be relatively fixed, and the bridge deck panel can be deformed as necessary when bearing the vertical load, so that more reasonable test results can be obtained. The tooling device for fatigue testing of a panel has a simple structure, can shorten the time required for the fatigue test, reduce the cost, and reasonably reflect the actual fatigue conditions of the bridge deck panel.

[0035] Optionally, the tooling device for fatigue test of plate material further comprises a second connecting member 6, the second connecting member 6 comprises a clamping groove structure 61 and a connecting plate 62, the connecting plate 62 is arranged on the clamping groove structure 61 and is used for connecting with a fatigue testing machine, the connecting plate 62 is clamped by a brake chuck of the fatigue testing machine, and force is applied to the panel 4 through the clamping groove structure 61, so that not only the fatigue test of the bridge panel is facilitated, but also the bridge panel is protected, the clamping groove structure 61 is provided with a first clamping groove matched with the shape of the panel 4, and the first clamping groove is used for accommodating and fixing a part of the panel 4, during the fatigue test, the brake chuck of the fatigue testing machine clamps the connecting plate 62 to realize the fatigue vertical loading.

[0036] Specifically, as shown in Figure 2 and Figure 4 the tooling device for fatigue test of plate material further comprises a second connecting member 6, the second connecting member 6 comprises a clamping groove structure 61 and a connecting plate 62, the connecting plate 62 is arranged on the clamping groove structure 61 and is used for connecting with a fatigue testing machine, the connecting plate 62 is clamped by a brake chuck of the fatigue testing machine, and force is applied to the panel 4 through the clamping groove structure 61, so that not only the fatigue test of the bridge panel is facilitated, but also the bridge panel is protected, the clamping groove structure 61 is provided with a first clamping groove matched with the shape of the panel 4, and the first clamping groove is used for accommodating and fixing a part of the panel 4, during the fatigue test, the brake chuck of the fatigue testing machine clamps the connecting plate 62 to realize the fatigue vertical loading. Figure 3 Figure 5 and

[0037] Optionally, the first support member 2 further comprises a limiting plate 23, two limiting plates 23 are arranged on the two sides of the other end of the sliding part 11 respectively and are connected with the first support plate 21, and the two limiting plates 23 cooperatively enclose the rolling groove 22 with the first support plate 21.

[0038] Specifically, as shown in Figure 2 the first support member 2 further comprises a limiting plate 23, two limiting plates 23 are arranged on the two sides of the other end of the sliding part 11 respectively and are connected with the first support plate 21, and the two limiting plates 23 cooperatively enclose the rolling groove 22 with the first support plate 21, and the number of the limiting plates 23 corresponds to the number of the rolling bearings 13, both of which are two, so as to limit each rolling bearing 13 and ensure the safe fatigue test.

[0039] Optionally, the first support member 2 further comprises a first bottom plate 24 and a first elbow plate 25, the first bottom plate 24 is connected with the test platform and is also connected with the first support plate 21 perpendicularly, and the first elbow plate 25 is connected with the first support plate 21 and the first bottom plate 24 perpendicularly respectively.

[0040] Specifically, as shown in Figure 2 ​As shown, the first support 2 further comprises a first bottom plate 24 and a first elbow plate 25, the first elbow plate 25 can be quadrilateral or pentagonal in shape, the first bottom plate 24 is connected with the test platform and is laid on the test platform, and the first bottom plate 24 is further connected perpendicularly with the first support plate 21, and the first elbow plate 25 is connected perpendicularly with the first support plate 21 and the first bottom plate 24 respectively, so as to realize the function of enhancing the strength and stability of the first support 2.

[0041] Optionally, the second support 3 comprises a second support plate 31 and a second elbow plate 32, the second support plate 31 is arranged obliquely relative to the test platform and is adapted to the oblique angle of the stiffening rib 5, and the second support plate 31 is used to be connected with the stiffening rib 5, the second elbow plate 32 is arranged on both sides of the second support plate 31 in the width direction and is perpendicular to the second support plate 31, and the bottom ends of the second support plate 31 and the second elbow plate 32 are connected with the test platform.

[0042] Specifically, as shown in Figure 2 and Figure 3 , the second support 3 comprises a second support plate 31 and a second elbow plate 32, the second support plate 31 is arranged obliquely relative to the test platform and is adapted to the oblique angle of the stiffening rib 5, so that the surface of the panel 4 remains horizontal after the second support 3 fixes the stiffening rib 5, the second elbow plate 32 is arranged on both sides of the second support plate 31 in the width direction and is perpendicular to the second support plate 31, and the bottom ends of the second support plate 31 and the second elbow plate 32 are connected with the test platform, so as to ensure that the second support plate 31 and the second elbow plate 32 can stand stably on the test platform.

[0043] Exemplarily, the second support plate 31 is detachably connected with the stiffening rib 5, for example, threaded connection, pin connection, key connection, bayonet connection, clamp connection, buckle connection and flange connection, etc. In the case of threaded connection, as shown in Figure 2 , the second support plate 31 and the stiffening rib 5 are both provided with corresponding threaded holes 7.

[0044] Optionally, the second support 3 further comprises a second bottom plate 33, the second bottom plate 33 is connected with the test platform and is further connected with the bottom ends of the second support plate 31 and the second elbow plate 32 respectively.

[0045] Specifically, as shown in Figure 2 , the second support 3 further comprises a second bottom plate 33, the second bottom plate 33 is connected with the test platform and is further connected with the bottom ends of the second support plate 31 and the second elbow plate 32 respectively, so as to make the fixing of the stiffening rib 5 more stable.

[0046] Optionally, the other end of the connecting part 12 is provided with a second clamping groove, the second clamping groove is used to be inserted and fixed with one end of the panel 4.

[0047] Specifically, as shown in Figure 3 and Figure 4 , the other end of the connecting part 12 is provided with a second clamping groove matched with the shape of the panel 4, the second clamping groove is used for inserting and fixing with one end of the panel 4, and the connecting part 12 is connected with the panel 4 through the second clamping groove. Exemplarily, the connecting part 12 is detachably connected with the panel 4 through the second clamping groove, for example, threaded connection, pin connection, clamp connection, and key connection, etc., and when the threaded connection is adopted, as shown in Figure 3 and Figure 5 , the connecting part 12 is provided with a corresponding threaded hole 7.

[0048] Optionally, the first connecting piece 1 further comprises a rolling shaft 14, one end of the rolling shaft 14 is connected with the sliding part 11, the other end is connected with the shaft center of the rolling bearing 13, or the rolling shaft 14 passes through the sliding part 11, and both ends are respectively connected with the shaft centers of two rolling bearings 13.

[0049] Specifically, as shown in Figure 5 , the first connecting piece 1 further comprises a rolling shaft 14, one end of the rolling shaft 14 is connected with the sliding part 11, the other end is connected with the shaft center of the rolling bearing 13, or the rolling shaft 14 passes through the sliding part 11, and both ends are respectively connected with the shaft centers of two rolling bearings 13, so as to ensure the smoothness of the sliding of the rolling shaft 14.

[0050] Optionally, the connecting part 12 is provided with a threaded hole, and the connecting part 12 is threadedly connected with the panel 4.

[0051] Specifically, when the threaded connection is adopted, as shown in Figure 3 and Figure 5 , the connecting part 12 is provided with a corresponding threaded hole 7.

[0052] Optionally, the first bottom plate 24 is provided with a threaded hole, and the first bottom plate 24 is threadedly connected with the test platform.

[0053] Specifically, as shown in Figure 5 , the first bottom plate 24 is provided with a threaded hole, and the first bottom plate 24 is threadedly connected with the test platform. Exemplarily, the second bottom plate 33 is provided with a threaded hole, and the second bottom plate 33 is threadedly connected with the test platform.

[0054] Although the utility model discloses as above, the protection scope of the utility model is not limited to this only. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall into the protection scope of the utility model.

Claims

1. A tooling device for plate fatigue testing, applied to fatigue testing of bridge decks, wherein the bridge deck comprises a deck (4) and stiffening ribs (5), characterized in that: The tooling device for plate fatigue testing comprises: a first connecting member (1), a first supporting member (2) and a second supporting member (3); the first connecting member (1) comprises a sliding portion (11), a connecting portion (12) and a rolling bearing (13); one end of the sliding portion (11) is connected to one end of the connecting portion (12); the rolling bearings (13) are symmetrically provided on both sides of the other end of the sliding portion (11); the first supporting member (2) comprises a first supporting plate (21); one end of the first supporting plate (21) is vertically fixed to a test platform The other end of the first support plate (21) is provided with an opening, the other end of the connecting portion (12) passes through the opening and is connected to one end of the panel (4), and the first support plate (21) is provided with a rolling groove (22) corresponding to the rolling bearing (13) on the side away from the panel (4), the rolling groove (22) extends vertically, the rolling bearing (13) abuts against the rolling groove (22) and is used to roll along the rolling groove (22), and the second support member 3 is fixed on the test platform and is used to fix the stiffening rib (5).

2. The tooling device for plate fatigue testing according to claim 1, characterized in that: The invention also includes a second connecting member (6), the second connecting member (6) including a slot structure (61) and a connecting plate (62), the connecting plate (62) being arranged on the slot structure (61) and being used for connecting to a fatigue testing machine, the slot structure (61) being provided with a first slot that is adapted to the shape of the panel (4), the first slot being used for being plugged into and fixed to the other end of the panel (4).

3. The tooling device for plate fatigue testing according to claim 1, characterized in that: The first support member (2) further includes a limiting plate (23), wherein the two limiting plates (23) are respectively arranged on both sides of the other end of the sliding portion (11) and connected to the first support plate (21), and the two limiting plates (23) respectively cooperate with the first support plate (21) to form the rolling groove (22).

4. The tooling device for plate fatigue testing according to claim 1, characterized in that: The first support member (2) further comprises a first base plate (24) and a first toggle plate (25), wherein the first base plate (24) is connected to the test platform and is also vertically connected to the first support plate (21), and the first toggle plate (25) is respectively vertically connected to the first support plate (21) and the first base plate (24).

5. The tooling device for plate fatigue testing according to claim 1, characterized in that: The second support member (3) includes a second support plate (31) and a second elbow plate (32), the second support plate (31) is tilted relative to the test platform and adapted to the tilt angle of the stiffening rib (5), and the second support plate (31) is used to connect with the stiffening rib (5), the second elbow plate (32) is provided on both sides of the second support plate (31) in the width direction and is perpendicular to the second support plate (31), and the bottom ends of the second support plate (31) and the second elbow plate (32) are connected to the test platform.

6. The tooling device for plate fatigue testing according to claim 5, characterized in that: The second support member (3) further comprises a second bottom plate (33), the second bottom plate (33) being connected to the test platform and also being respectively connected to the bottom ends of the second support plate (31) and the second toggle plate (32).

7. The tooling device for plate fatigue testing according to claim 1, characterized in that: The other end of the connecting portion (12) is provided with a second card slot that matches the shape of the panel (4), and the second card slot is used to be plugged into and fixed to one end of the panel (4).

8. The tooling device for plate fatigue testing according to claim 1, characterized in that: The first connecting member (1) further comprises a rolling shaft (14), one end of the rolling shaft (14) being connected to the sliding portion (11) and the other end being connected to the axis of the rolling bearing (13); alternatively, the rolling shaft (14) passes through the sliding portion (11) and its two ends are respectively connected to the axis of the two rolling bearings (13).

9. The tooling device for plate fatigue testing according to claim 1, characterized in that: The connecting portion (12) is provided with a threaded hole (7), and the connecting portion (12) is threadedly connected to the panel (4).

10. The tooling device for plate fatigue testing according to claim 4, characterized in that: The first bottom plate (24) is provided with a threaded hole (7), and the first bottom plate (24) is threadedly connected to the test platform.

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