V-shaped notch shear test hydraulic tool

Abstract

The utility model relates to the technical field of composite material shear performance testing methods, in particular to a V-shaped notch shear test hydraulic tool which comprises a first clamping plate and a second clamping plate which are arranged at an interval, and a first mounting groove and a second mounting groove are formed in the inner end face of the first clamping plate and the inner end face of the second clamping plate respectively. The inner end face of the first clamping plate is further provided with an insertion groove for insertion of a test plate, the top and the bottom of the insertion groove are communicated with the corresponding first installation groove and the bottom of the first clamping plate respectively, and the first clamping plate and the second clamping plate are provided with an upper connecting piece and a lower connecting piece which are used for being connected with an experiment machine respectively. A first automatic clamping mechanism for clamping a test plate is mounted in the first mounting groove, and a second automatic clamping mechanism for clamping the test plate is mounted in the second mounting groove; by means of the structural design of the hydraulic clamping device, the problems that in the prior art, due to sample distortion, stress change and slippage, experiment results are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material shear performance testing methods, and in particular to a hydraulic tooling for V-notch shear test. Background Technique

[0002] At present, in-plane shear performance is one of the important indicators for the design of composite material structures. The main in-plane shear performance testing methods at home and abroad are as follows: (1) ±45° tensile shear; (2) V-notch shear; (3) uniaxial tension with an axis deviation of 10°; (4) torsion of thin-walled tubes; (5) double-rail and triple-rail shear tests; (6) twisting of flat plates. The V-notch shear method has the advantages of simple specimen processing and preparation, low test cost, high test accuracy, good repeatability of test data, etc. The commonly used method for testing the shear performance of composite materials at home and abroad is the V-notch specimen test method, and relevant standards have been formed. Such as ASTM D7078, which introduces a test fixture suitable for the V-notch test of composite materials in its standard. This fixture can ensure that the V-notch specimen is clamped by two pairs of fixtures on the loading track. When a tensile force is applied, the track transfers the shear load to the specimen through the specimen surface. Compared with other standards, the shear stress of ASTM D7078 is more uniform and there is no need to drill holes in the specimen. However, this fixture has the following disadvantages: (1) The specimen is clamped by the top blocks of the connecting bolts on both sides, which requires very high strength for the top blocks. At the same time, stress concentration will occur in the area of the specimen pressed by the corners of the top blocks, and the edges of the specimen will inevitably be crushed; (2) During the process of clamping the specimen, it is rather troublesome to align the specimen, and it needs to be adjusted many times during use to ensure specimen alignment; (3) During the process of clamping the specimen, different tightening force sequences of the bolts may cause the specimen to be distorted; (4) When the load increases, unnecessary bending will occur on the fixture, resulting in a change in the force on the specimen; if the load continues to increase, it may cause the specimen to slip, affecting the experimental results.

[0003] Therefore, in view of the above problems, the utility model urgently provides a hydraulic tooling for V-notch shear test. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic tooling for V-notch shear test, which uses a hydraulic cylinder to control the structure for clamping the specimen to solve the problems such as specimen distortion, force change, and slip affecting the experimental results existing in the prior art.

[0005] A V-notch shear test hydraulic tooling, comprising a first clamping plate and a second clamping plate which are arranged at intervals. The inner end faces of the first clamping plate and the second clamping plate are respectively provided with a first installation groove and a second installation groove. The inner end face of the first clamping plate is further provided with a slot into which a test plate can be inserted. The top and bottom of the slot communicate with the corresponding first installation groove and the bottom of the first clamping plate respectively. The first clamping plate and the second clamping plate are respectively provided with an upper connecting piece and a lower connecting piece for connecting with a testing machine;

[0006] A first automatic clamping mechanism for clamping the test plate is installed in the first installation groove, and a second automatic clamping mechanism for clamping the test plate is installed in the second installation groove.

[0007] Further, the first clamping plate includes a first vertical plate, and the top of the first vertical plate is provided with an upper cross plate extending above the second clamping plate; the second clamping plate includes a second vertical plate, and the top of the second vertical plate is provided with a lower cross plate extending below the first clamping plate; the outer side wall of the first clamping plate is further provided with a first protrusion, and the outer side wall of the second clamping plate is further provided with a second protrusion;

[0008] The first vertical plate is connected to the lower cross plate through a first positioning member, and the upper cross plate is connected to the second vertical plate through a second positioning member.

[0009] Further, the first positioning member includes a first guiding column provided on the lower surface of the first vertical plate and extending downward, and a second guiding slideway which penetrates the second protrusion and matches the first guiding column; the second positioning member includes a second guiding column provided on the upper surface of the second vertical plate and extending upward, and a first guiding slideway which penetrates the first protrusion and matches the second guiding column.

[0010] Further, the first automatic clamping mechanism includes a first fixed plate and a first moving plate longitudinally arranged in the first installation groove. The first fixed plate is fixedly connected to the side wall of the first installation groove, and the first moving plate is connected to the telescopic rod of a first hydraulic cylinder fixed in the first installation groove. A first clamping gap is provided between the first fixed plate and the first moving plate, and the first clamping gap communicates with the slot;

[0011] The second automatic clamping mechanism includes a second fixed plate and a second moving plate longitudinally arranged in the second installation groove. The second fixed plate is fixedly connected to the side wall of the second installation groove, and the second moving plate is connected to the telescopic rod of a second hydraulic cylinder fixed in the second installation groove. A second clamping gap is provided between the second fixed plate and the second moving plate;

[0012] The first clamping gap and the second clamping gap are arranged oppositely.

[0013] Further, an upper clamping block is also installed between the first automatic clamping mechanism and the first installation groove. The upper clamping block includes a first clamping upper cover plate, a first clamping back plate, and a first clamping lower cover plate that are perpendicular to the side wall of the first installation groove and are connected end to end in sequence to form a C shape. The outer side of the first clamping upper cover plate is provided with a first upper flange edge extending downward, and the outer side of the first clamping lower cover plate is provided with a first lower flange edge extending upward. The first upper flange edge, the first clamping upper cover plate, the first clamping back plate, the first clamping lower cover plate, and the first lower flange edge enclose and form a first slideway. The first automatic clamping mechanism is installed in the first slideway. It also includes a first reference plate installed at one end of the first slideway and fixedly connected to the side wall of the first installation groove. The first fixing plate is fixedly connected to the first reference plate, and the first moving plate is slidably installed in the first slideway.

[0014] Further, an introduction gap penetrating the first clamping lower cover plate is also included, and the introduction gap is correspondingly arranged with the slot.

[0015] Further, a lower clamping block is also installed between the second automatic clamping mechanism and the second installation groove. The lower clamping block includes a second clamping upper cover plate, a second clamping back plate, and a second clamping lower cover plate that are perpendicular to the side wall of the second installation groove and are connected end to end in sequence to form a C shape. The outer side of the second clamping upper cover plate is provided with a second upper flange edge extending downward, and the outer side of the second clamping lower cover plate is provided with a second lower flange edge extending upward. The second upper flange edge, the second clamping upper cover plate, the second clamping back plate, the second clamping lower cover plate, and the second lower flange edge enclose and form a second slideway. The second automatic clamping mechanism is installed in the second slideway. It also includes a second reference plate installed at one end of the second slideway and fixedly connected to the side wall of the second installation groove. The second fixing plate is fixedly connected to the second reference plate, and the second moving plate is slidably installed in the second slideway.

[0016] Further, a first rough surface is provided on one side of the first moving plate close to the first fixing plate, and a second rough surface is provided on one side of the second moving plate close to the second fixing plate.

[0017] Further, both the first hydraulic cylinder and the second hydraulic cylinder are oil cylinders.

[0018] Further, the side surfaces of the first guide posts, the inner walls of the first guide slideways, the side surfaces of the second guide posts, and the inner walls of the second guide slideways are all smoothly arranged.

[0019] A V-notch shear test hydraulic tooling provided by the present utility model has the following improvements compared with the prior art:

[0020] The V-notch shear test hydraulic tooling provided by the present utility model uses a fixed plate fixed to the installation groove and a moving plate controlled by a hydraulic cylinder to clamp the test sample. By adopting the method of dividing the clamping device into one fixed side and the other side controlled by a hydraulic cylinder, the original manual tooling in the standard is changed to a controllable hydraulic tooling, which solves the common problems such as sample distortion and uneven stress in the V-notch shear conventional test. At the same time, the position of the fixed plate is controlled by a reference plate, which can solve the problem of sample centering, provide a stable and uniform clamping force for the sample, and reduce the possibility of sample slippage. The cooperation of the guide posts and the guide slides ensures that the upper and lower clamping plates do not shift during the test, further ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram (3D view) of the V-notch shear test hydraulic tooling described in the present utility model;

[0023] Figure 2 It is a schematic structural diagram (3D view) of the second clamping plate described in the present utility model;

[0024] Figure 3 It is a schematic structural diagram (3D view) of the second clamping plate described in the present utility model;

[0025] Figure 4 It is a schematic structural diagram (3D view) of the first clamping plate described in the present utility model;

[0026] Figure 5 It is a schematic structural diagram (3D view) of the first clamping plate described in the present utility model

[0027] Figure 6 It is a schematic diagram (exploded view) of the upper clamping block described in the present utility model;

[0028] Figure 7 It is a schematic diagram (3D view) of the upper clamping block described in the present utility model;

[0029] Figure 8 It is a schematic diagram (exploded view) of the lower clamping block described in the present utility model;

[0030] Figure 9 It is a schematic diagram (3D view) of the lower clamping block described in the present utility model.

[0031] Description of the reference numerals:

[0032] 101, the first vertical plate; 102, the upper horizontal plate; 103, the first guide post; 104, the first guide slideway; 105, the first fixed plate; 106, the first moving plate; 107, the first hydraulic cylinder; 108, the upper connecting member; 109, the slot; 110, the first clamping back plate; 111, the first clamping upper cover plate; 1111, the first upper flange edge; 112, the first clamping lower cover plate; 1121, the first lower flange edge; 1122, the guiding gap; 113, the first reference plate; 114, the first protrusion; 201, the second vertical plate; 202, the lower horizontal plate; 203, the second guide post; 204, the second guide slideway; 205, the second fixed plate; 206, the second moving plate; 207, the second hydraulic cylinder; 208, the lower connecting member; 209, the second clamping back plate; 210, the second clamping upper cover plate; 2101, the second upper flange edge; 211, the second clamping lower cover plate; 2111, the second lower flange edge; 212, the second reference plate; 213, the second protrusion. Detailed implementation manners

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] Such as Figure 1 , Figure 2 , Figure 4 ,Figure 5 As shown in the figure, a hydraulic tooling for V-notch shear test provided by the utility model includes two first clamping plates and second clamping plates arranged at intervals. The inner end faces of the first clamping plate and the second clamping plate are respectively provided with a first installation groove and a second installation groove. The inner end face of the first clamping plate is further provided with a slot 109 into which a test plate can be inserted. The top and bottom of the slot communicate with the corresponding first installation groove and the bottom of the first clamping plate respectively. The first clamping plate and the second clamping plate are respectively provided with an upper connecting member 108 and a lower connecting member 208 for connecting with a testing machine.

[0037] A first automatic clamping mechanism for clamping the test plate is installed in the first installation groove, and a second automatic clamping mechanism for clamping the test plate is installed in the second installation groove.

[0038] The hydraulic tooling for V-notch shear test provided by the utility model uses a fixed plate fixed to the installation groove and a moving plate controlled by a hydraulic cylinder to clamp the test sample. By adopting the method of dividing the clamping device into one fixed side and the other side controlled by a hydraulic cylinder, the original manual tooling in the standard is changed to a controllable hydraulic tooling, which solves the common problems such as sample distortion and uneven stress in the conventional V-notch shear test. At the same time, by using a reference plate to control the position of the fixed plate, the problem of sample alignment can be solved, a stable and uniform clamping force can be provided for the sample, and the possibility of sample slippage is reduced. The cooperation of the guide post and the guide slide ensures that the upper and lower clamping plates do not shift during the test, further ensuring the accuracy of the test data.

[0039] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown in the figure, the first clamping plate includes a first vertical plate 10. The top of the first vertical plate 101 is provided with an upper cross plate 102 extending above the second clamping plate. The second clamping plate includes a second vertical plate 201. The top of the second vertical plate 201 is provided with a lower cross plate 202 extending below the first clamping plate. The outer side wall of the first clamping plate is further provided with a first protrusion 114, and the outer side wall of the second clamping plate is further provided with a second protrusion 213.

[0040] The first vertical plate 101 is connected to the lower cross plate 202 through a first positioning member, and the upper cross plate 102 is connected to the second vertical plate 201 through a second positioning member.

[0041] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown in the figure, the first positioning member includes a first guiding column 103 disposed on the lower surface of the first vertical plate 101 and extending downward, and a second guiding slideway 204 passing through the second protrusion 213 and matching the first guiding column 103; the second positioning member includes a second guiding column 203 disposed on the upper surface of the second vertical plate 201 and extending upward, and a first guiding slideway 104 passing through the first protrusion 114 and matching the second guiding column 203.

[0042] In the present utility model, through the cooperation between the first guiding column 103 and the second guiding slideway 204, and between the second guiding column 203 and the first guiding slideway 104, when a shearing test is performed, the stable direction of the relative movement is maintained, so that the upper and lower clamping plates do not shift during the test, further ensuring the accuracy of the test data.

[0043] As Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown in the figure, the first automatic clamping mechanism includes a first fixed plate 105 and a first moving plate 106 longitudinally arranged in a first installation groove. The first fixed plate 105 is fixedly connected to the side wall of the first installation groove, and the first moving plate 106 is connected to the telescopic rod of a first hydraulic cylinder 107 fixed in the first installation groove. A first clamping gap is provided between the first fixed plate 105 and the first moving plate 106, and the first clamping gap is communicated with the slot 109.

[0044] The second automatic clamping mechanism includes a second fixed plate 205 and a second moving plate 206 longitudinally arranged in a second installation groove. The second fixed plate 205 is fixedly connected to the side wall of the second installation groove, and the second moving plate 206 is connected to the telescopic rod of a second hydraulic cylinder 207 fixed in the second installation groove. A second clamping gap is provided between the second fixed plate 205 and the second moving plate 206.

[0045] The first clamping gap and the second clamping gap are arranged oppositely.

[0046] As Figure 6 、 Figure 7As shown, an upper clamping block is further installed between the first automatic clamping mechanism and the first installation groove. The upper clamping block includes a first clamping upper cover plate 111, a first clamping back plate 110, and a first clamping lower cover plate 112 that are perpendicular to the side wall of the first installation groove and are sequentially connected end to end to form a C shape. A first upper flange 1111 extending downward is provided on the outer side of the first clamping upper cover plate 111, and a first lower flange 1121 extending upward is provided on the outer side of the first clamping lower cover plate 112. The first upper flange 1111, the first clamping upper cover plate 111, the first clamping back plate 110, the first clamping lower cover plate 112, and the first lower flange 1121 enclose a first slideway. The first automatic clamping mechanism is installed in the first slideway. It further includes a first reference plate 113 installed at one end of the first slideway and fixedly connected to the side wall of the first installation groove. The first fixing plate 105 is fixedly connected to the first reference plate 113, and the first moving plate 106 is slidably installed in the first slideway.

[0047] As Figure 6 shown, it further includes an introduction gap 1122 passing through the first clamping lower cover plate 112, and the introduction gap 1122 is correspondingly arranged with the slot 109.

[0048] As Figure 8 、 Figure 9 shown, a lower clamping block is further installed between the second automatic clamping mechanism and the second installation groove. The lower clamping block includes a second clamping upper cover plate 210, a second clamping back plate 209, and a second clamping lower cover plate 211 that are perpendicular to the side wall of the second installation groove and are sequentially connected end to end to form a C shape. A second upper flange 2101 extending downward is provided on the outer side of the second clamping upper cover plate 210, and a second lower flange 2111 extending upward is provided on the outer side of the second clamping lower cover plate 211. The second upper flange 2101, the second clamping upper cover plate 210, the second clamping back plate 209, the second clamping lower cover plate 211, and the second lower flange 2111 enclose a second slideway. The second automatic clamping mechanism is installed in the second slideway. It further includes a second reference plate 212 installed at one end of the second slideway and fixedly connected to the side wall of the second installation groove. The second fixing plate 205 is fixedly connected to the second reference plate 212, and the second moving plate 206 is slidably installed in the second slideway.

[0049] In the utility model, the first slideway formed by the first upper flange edge 1111, the first clamping upper cover plate 111, the first clamping back plate 110, the first clamping lower cover plate 112 and the first lower flange edge 1121 and the second slideway formed by the second upper flange edge 2101, the second clamping upper cover plate 210, the second clamping back plate 209, the second clamping lower cover plate 211 and the second lower flange edge 2111, firstly, when the first movable plate 106 and the second movable plate 206 move in the first mounting groove and the second mounting groove respectively, they do not slide with the side walls of the first mounting groove and the second mounting groove, thereby avoiding friction damage to the first clamping plate and the second clamping plate body, so as to increase the service life of the tooling; secondly, when the size of the sample changes, by removing the upper and lower clamping blocks and replacing the first reference plate 113 and the second reference plate 212 of different sizes, the clamping gap width can be adjusted to adapt to samples of different sizes without replacing the entire tooling, thereby improving the applicability of the utility model.

[0050] In this embodiment, a first rough surface is provided on a side of the first movable plate 106 close to the first fixed plate 105 , and a second rough surface is provided on a side of the second movable plate 206 close to the second fixed plate 205 .

[0051] In the utility model, by arranging a rough surface on the clamping surface, the friction force on the sample can be increased, the displacement of the sample in the clamping gap can be avoided, and the accuracy of the experiment can be improved.

[0052] In this embodiment, the first hydraulic cylinder 107 and the second hydraulic cylinder 207 are both oil cylinders.

[0053] In this embodiment, the side surface of the first guide column 103, the inner wall of the first guide slide 104, the side surface of the second guide column 203 and the inner wall of the second guide slide 204 are all smooth.

[0054] The implementation methods of the utility model are as follows:

[0055] 1) Assemble the first clamping plate and the second clamping plate respectively, and respectively install the first guide column 103 and the second guide slide 204, and the second guide column 203 and the first guide slide 104;

[0056] 2) Connect the upper connecting member 108 and the lower connecting member 208 to the upper and lower fixtures of the testing machine respectively;

[0057] 3) placing the test plate in the second clamping gap, and using the second hydraulic cylinder 207 to drive the second movable plate 206 and the second fixed plate 205 to clamp the test plate;

[0058] 4) Control the testing machine to drive the first clamping plate to move downward, so that the test plate passes through the slot 109 and the introduction gap 1122 to reach the first clamping gap, and use the first hydraulic cylinder 107 to drive the first moving plate 106 and the first fixed plate 105 to clamp the test plate;

[0059] 5) Control the testing machine to drive the first clamping plate and the second clamping plate to move upward and downward respectively, and conduct the V-notch specimen test method in accordance with ASTM D7078 standard.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A V-notch shear test hydraulic tool, characterized in that: The invention comprises a first clamping plate and a second clamping plate which are spaced apart from each other, wherein the inner end surfaces of the first clamping plate and the second clamping plate are respectively provided with a first mounting groove and a second mounting groove, and the inner end surface of the first clamping plate is also provided with a slot (109) for inserting a test plate, wherein the top and the bottom of the slot are respectively connected with the corresponding first mounting groove and the bottom of the first clamping plate, and the first clamping plate and the second clamping plate are respectively provided with an upper connecting piece (108) and a lower connecting piece (208) for connecting with a test machine; A first automatic clamping mechanism for clamping the test board is installed in the first installation groove, and a second automatic clamping mechanism for clamping the test board is installed in the second installation groove.

2. The V-notch shear test hydraulic tooling according to claim 1, characterized in that: The first clamping plate comprises a first vertical plate (101), and an upper horizontal plate (102) extending upwards from the second clamping plate is provided at the top of the first vertical plate (101); the second clamping plate comprises a second vertical plate (201), and a lower horizontal plate (202) extending downwards from the first clamping plate is provided at the top of the second vertical plate (201); the outer side wall of the first clamping plate is further provided with a first protrusion (114), and the outer side wall of the second clamping plate is further provided with a second protrusion (213); The first vertical plate (101) is connected to the lower horizontal plate (202) via a first positioning member, and the upper horizontal plate (102) is connected to the second vertical plate (201) via a second positioning member.

3. The V-notch shear test hydraulic tooling according to claim 2, characterized in that: The first positioning member comprises a first guide column (103) arranged on the lower surface of the first vertical plate (101) and extending downward, and a second guide slideway (204) passing through the second protrusion (213) and matching with the first guide column (103); the second positioning member comprises a second guide column (203) arranged on the upper surface of the second vertical plate (201) and extending upward, and a first guide slideway (104) passing through the first protrusion (114) and matching with the second guide column (203).

4. The V-notch shear test hydraulic tooling according to claim 3, characterized in that: The first automatic clamping mechanism comprises a first fixed plate (105) and a first movable plate (106) longitudinally arranged in the first installation groove, the first fixed plate (105) is fixedly connected to the side wall of the first installation groove, the first movable plate (106) is connected to the telescopic rod of the first hydraulic cylinder (107) fixed to the first installation groove, a first clamping gap is provided between the first fixed plate (105) and the first movable plate (106), and the first clamping gap is connected to the slot (109); The second automatic clamping mechanism comprises a second fixed plate (205) and a second movable plate (206) longitudinally arranged in the second installation groove, the second fixed plate (205) is fixedly connected to the side wall of the second installation groove, the second movable plate (206) is connected to the telescopic rod of the second hydraulic cylinder (207) fixed to the second installation groove, and a second clamping gap is provided between the second fixed plate (205) and the second movable plate (206); The first clamping gap and the second clamping gap are arranged opposite to each other.

5. The V-notch shear test hydraulic tooling according to claim 4, characterized in that: An upper clamping block is also installed between the first automatic clamping mechanism and the first installation groove, and the upper clamping block includes a first clamping upper cover plate (111), a first clamping back plate (110) and a first clamping lower cover plate (112) which are vertically arranged with the side wall of the first installation groove and are connected end to end in sequence to form a C shape, a first clamping back plate (110) and a first clamping lower cover plate (112) are provided on the outer side of the first clamping upper cover plate (111) and extend downwardly, and a first upper flange edge (1111) is provided on the outer side of the first clamping lower cover plate (112) and extend upwardly. A flange (1111), a first clamping upper cover plate (111), a first clamping back plate (110), a first clamping lower cover plate (112) and a first lower flange edge (1121) are arranged to form a first slideway, and a first automatic clamping mechanism is installed in the first slideway. The first slideway also includes a first reference plate (113) installed at one end of the first slideway and fixedly connected to the side wall of the first installation groove. The first fixed plate (105) is fixedly connected to the first reference plate (113), and the first movable plate (106) can be slidably installed in the first slideway.

6. The V-notch shear test hydraulic tooling according to claim 5, characterized in that: It also includes an introduction gap (1122) that passes through the first clamping lower cover plate (112), and the introduction gap (1122) is arranged corresponding to the slot (109).

7. The V-notch shear test hydraulic tooling according to claim 6, characterized in that: A lower clamping block is also installed between the second automatic clamping mechanism and the second mounting groove, and the lower clamping block includes a second clamping upper cover plate (210), a second clamping back plate (209) and a second clamping lower cover plate (211) which are vertically arranged with the side wall of the second mounting groove and are connected end to end to form a C-shape, a second clamping back plate (209) and a second clamping lower cover plate (211) are provided on the outer side of the second clamping upper cover plate (210) to extend downward, and a second upper flange edge (2101) extending upward is provided on the outer side of the second clamping lower cover plate (211). The flange edge (2101), the second clamping upper cover plate (210), the second clamping back plate (209), the second clamping lower cover plate (211) and the second lower flange edge (2111) are arranged to form a second slideway, and the second automatic clamping mechanism is installed in the second slideway. It also includes a second reference plate (212) installed at one end of the second slideway and fixedly connected to the second groove side wall, the second fixed plate (205) is fixedly connected to the second reference plate (212), and the second movable plate (206) can be slidably installed in the second slideway.

8. The V-notch shear test hydraulic tooling according to claim 7, characterized in that: A first rough surface is provided on a side of the first movable plate (106) close to the first fixed plate (105), and a second rough surface is provided on a side of the second movable plate (206) close to the second fixed plate (205).

9. The V-notch shear test hydraulic tooling according to claim 8, characterized in that: The first hydraulic cylinder (107) and the second hydraulic cylinder (207) are both oil cylinders.

10. The V-notch shear test hydraulic tooling according to claim 9, characterized in that: The side surface of the first guide column (103), the inner wall of the first guide slideway (104), the side surface of the second guide column (203) and the inner wall of the second guide slideway (204) are all smoothly arranged.

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