Clamping tool for testing mechanical characteristics

Abstract

The invention discloses a clamping tool for testing mechanical characteristics. The clamping tool is applied to auxiliary testing of power equipment with an operating mechanism. Comprising a first clamping part, a second clamping part and a transmission part, the operating mechanism is provided with a switching-on and switching-off indicating disc, one side of the first clamping part is arranged on the outer side face of the switching-on and switching-off indicating disc, and the other side of the first clamping part is connected with the rotary speed measuring sensor. The top of the first clamping part is fixedly connected with the left bottom surface of the transmission part; the second clamping part is located on the inner side face of the opening and closing indicating dial. A guide rail is arranged at the bottom of the middle of the transmission part, a guide piece is arranged at the top of the second clamping part, the guide rail is matched with the guide piece, and the second clamping part is movably connected to the transmission part. The clamping tool is simple in overall structure and small in size, rapid clamping operation is achieved by pressing an external button of the clamping tool on the premise that the opening and closing indicating dial is not disassembled, meanwhile, the rotary speed measuring sensor and the opening and closing indicating dial are stably connected, the installation position is accurate, and therefore the accuracy of a measurement result is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment with an operating mechanism, and in particular to a clamping tool for mechanical property testing. Background Art

[0002] During the mechanical property test of the power equipment with the operating mechanism, the required performance parameters are measured by the rotation speed sensor. In actual test use, the rotation speed sensor is easy to fall off during the test, which cannot meet the accuracy of the test results and cannot improve the efficiency of installation.

[0003] To solve the problem of unstable connection between the rotation speed sensor and the operating mechanism, the existing technology generally uses an auxiliary tool: using a sleeve head with the same shaft diameter as the split-close indicator shaft; welding a nut on the end of the sleeve tool, connecting the sleeve head and the rotation speed sensor through a stud; connecting the split-close indicator shaft end, opening three threaded holes; after removing the split-close indicator disk, positioning the sleeve on the split-close indicator shaft, and tightening and fixing the split-close indicator shaft with three bolts to perform performance parameter testing. The above method has the following defects:

[0004] 1. The inherent opening and closing indicator plate is easily damaged when dismantled;

[0005] 2. Repeated installation and removal of studs, bolt fasteners, sleeves and other parts wastes time and is inefficient;

[0006] 3. The overall testing and installation process cannot guarantee accurate installation position and stable connection.

[0007] Therefore, it is urgent to study a clamping tool for mechanical property testing to solve the above problems. Summary of the invention

[0008] In order to solve the above technical defects, the technical solution adopted by the present invention is to provide a clamping tool for mechanical property testing. Without disassembling the separation and connection indicator disk of the operating mechanism, quick operation is achieved by pressing the external button of the clamping tool, and at the same time, the rotation speed sensor is firmly connected to the separation and connection indicator disk, and the installation position is accurate, thereby ensuring the accuracy of the measurement result.

[0009] In order to achieve the above-mentioned purpose, the present invention provides a clamping fixture for mechanical property testing, which is applied to auxiliary testing of power equipment with an operating mechanism; the clamping fixture comprises: a first clamping part, a second clamping part, and a transmission part; the operating mechanism is provided with an opening and closing indicator disk, one side of the first clamping part is arranged on the outer side of the opening and closing indicator disk, and the other side is connected to a rotation speed sensor for mechanical property testing; the top of the first clamping part is fixedly connected to the left bottom surface of the transmission part; the second clamping part is located on the inner side of the opening and closing indicator disk; a guide rail is provided at the middle bottom of the transmission part, a guide member is provided at the top of the second clamping part, the guide rail is adapted to the guide member, and the second clamping part can be movably connected to the transmission part;

[0010] The transmission part comprises: a housing, a transmission mechanism, and a limiting mechanism; the transmission mechanism and the limiting mechanism are installed in the housing; the transmission mechanism is a U-shaped transmission mechanism, and the limiting mechanism is arranged in the cavity of the U-shaped structure;

[0011] When the transmission mechanism performs a transmission action, the top end of the limiting mechanism abuts against the transmission mechanism, and the limiting mechanism limits the clamping position of the second clamping part, which is in a state of clamping the separation and closing indicator disk; when the transmission mechanism performs a return action, the top end of the limiting mechanism is separated from the transmission mechanism, and the clamping position of the second clamping part can move horizontally.

[0012] Preferably, the first clamping part includes: a connecting head, a disc structure, and a top connecting piece; one side of the disc structure is a concave surface, and its concave surface shape matches the outer diameter of the separation and combination indicator disk; the connecting head is arranged on the opposite side of the concave surface; the top connecting piece is arranged directly above the connecting head and is fixedly connected to the left bottom surface of the transmission part.

[0013] Preferably, the transmission mechanism includes: an external button, a driving rod, a connecting rod, a driven rod, and a plurality of spring rebound mechanisms; the limiting mechanism includes: a lower push rod, a limiting member;

[0014] The external button is arranged on the left side of the transmission part; one side of the driving rod is connected to the external button through a first spring rebound mechanism, and the other side is connected to the top of the connecting rod, and a convex block is arranged in the middle of the driving rod; the middle of the connecting rod is fixed by a rotating shaft, and the bottom is connected to one side of the driven rod; the other side of the driven rod is connected to a second spring rebound mechanism, and a pressing piece is arranged in the middle of the driven rod; the driving rod, the connecting rod, and the driven rod form a U-shaped structure;

[0015] The push rod is installed between the driving rod and the driven rod; the limit member is arranged directly below the pressing member; when the external button is pressed, the driving rod moves to the right, the driven rod moves to the left, the convex member abuts against the upper part of the push rod, generating a downward pressure; the pressing member and the limit member move downward through the push rod.

[0016] Preferably, the second clamping part comprises: an arc connector, a positioning assembly, and a fastening connector;

[0017] The upper part of the fastening connector is in an arc shape, and its outer diameter is adapted to the inner diameter of the concave surface of the disc structure; the positioning assembly is located on the right side of the fastening connector; the arc connector is located directly above the positioning assembly, and the guide member arranged on the top thereof is connected to the transmission part;

[0018] The fastening connector is bonded to the positioning assembly; the arc connector is fixedly connected to the positioning assembly via screws.

[0019] Preferably, there is a cavity structure inside the positioning component, and a third spring rebound mechanism, a positioning column, a limit block, a top column and a lower pressure plate are arranged inside the cavity structure; there are two positioning columns, which are arranged at the bottom of the cavity structure; a limit block is arranged on the top of the positioning column; the third spring rebound mechanism is sleeved on the positioning column; the bottom of the top column and the lower pressure plate are an integrally formed structure; the lower pressure plate has two through holes and is sleeved on the positioning column, and the lower pressure plate is located between the third spring rebound mechanism and the limit block;

[0020] When performing the transmission action, the upper part of the top column abuts against the limiting member, so that the second clamping part moves to clamp the separation and combination indicator disk and achieves limiting; when performing the return action, the upper part of the top column is separated from the limiting member, so that the second clamping part can move horizontally.

[0021] Preferably, the fastening connector is a rubber gasket.

[0022] Preferably, the limiting component includes: a limiting plate, a limiting column, and a fourth spring rebound mechanism; there are more than two limiting columns, which are evenly spaced at the bottom of the limiting plate and are an integrally formed structure; the fourth spring rebound mechanism is sleeved on the limiting columns on both sides.

[0023] Preferably, the clamping tool is further provided with a fifth spring rebound mechanism, and the fifth spring rebound mechanism is located at the end of the guide member.

[0024] Preferably, the push rod includes: a trapezoidal platform, a connecting rod, a sixth spring rebound mechanism and a downward pressing platform; the trapezoidal platform is arranged at the top of the connecting rod, the downward pressing platform is arranged at the bottom of the connecting rod, and the sixth spring rebound mechanism is sleeved on the connecting rod and is located between the downward pressing platform and the trapezoidal platform.

[0025] Preferably, the bottom of the connecting rod is a stepped special-shaped structure.

[0026] Compared with the prior art, the beneficial effects of the present invention are: 1. The clamping tool for mechanical property testing has a simple overall structure and a small size; 2. The first clamping part is positioned on the separation and combination indicator disk, and the external button is pressed, and the second clamping part is moved to clamp the separation and combination indicator disk, so that the rotation speed sensor is firmly connected to the separation and combination indicator disk and the installation position is accurate, thereby ensuring the accuracy of the measurement result; 3. After the test is completed, only the external button needs to be pressed again to realize the convenient disassembly of the clamping tool, and the clamping and disassembly process will not cause any damage to the separation and combination indicator disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the structure of a clamping tool for mechanical property testing provided by the present invention;

[0029] Figure 2 A schematic diagram of the structure explosion of a clamping tool for mechanical property testing provided by the present invention;

[0030] Figure 3 A partial cross-sectional view of a transmission part of a clamping tool for mechanical property testing provided by the present invention;

[0031] Figure 4 A partial cross-sectional view of a second clamping portion of a clamping tool for mechanical property testing provided by the present invention;

[0032] Figure 5 A schematic diagram of the outer shell structure of a clamping tool for mechanical property testing provided by the present invention;

[0033] Figure 6 A partial cross-sectional view of the position of a limiter of a clamping tool for mechanical property testing provided by the present invention;

[0034] Figure 7A schematic diagram of the disc structure of a clamping tool for mechanical property testing provided by the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to explain and understand the present invention, but not to limit the present invention.

[0037] See also Figures 1 to 7 The present invention provides a clamping tool for mechanical property testing, which is applied to auxiliary testing of power equipment with an operating mechanism; wherein the power equipment includes but is not limited to: high and low voltage equipment such as ring network cabinets, ring network boxes, and box-type substations. The clamping tool comprises: a first clamping part 1, a second clamping part 2, and a transmission part 3; the operating mechanism is provided with a separation and combination indicator disk, one side of the first clamping part 1 is arranged on the outer side of the separation and combination indicator disk, and the other side is connected to a rotation speed sensor for mechanical property testing; the top of the first clamping part 1 is fixedly connected to the left bottom surface of the transmission part 3; the second clamping part 2 is located on the inner side of the separation and combination indicator disk; a guide rail 311 is provided at the middle bottom of the transmission part 3, and a guide member 211 is provided at the top of the second clamping part 2, the guide rail 311 is adapted to the guide member 211, and the second clamping part 2 can be movably connected to the transmission part 3.

[0038] See also Figure 1 , Figure 2 The first clamping part 1 includes: a connecting head 11, a disc structure 12, and a top connecting piece 13; see Figure 7 One side of the disc structure 12 is a concave surface 121, and its concave surface shape matches the outer diameter of the separation and combination indicator disk; the connecting head 11 is arranged on the opposite side of the concave surface 121; a connecting hole is provided in the middle of the connecting head 11 to connect with the rotation speed sensor, and a threaded hole is preferably used here; the top connecting piece 13 is arranged directly above the connecting head 11 and is fixedly connected to the left bottom surface of the transmission part 3 with screws.

[0039] See also Figure 1-Figure 3The transmission part 3 includes: a housing 31, a transmission mechanism, and a limiting mechanism; the transmission mechanism and the limiting mechanism are installed in the housing; the transmission mechanism is a U-shaped transmission mechanism, and the limiting mechanism is arranged in the cavity of the U-shaped structure. The housing 31 is divided into a bottom shell 312 and an outer shell 313, both of which are made of metal or composite materials. Figure 5 The shell 313 adopts a fool-proof design, and is directly installed on the bottom shell 312 according to the inlay strips and cylinders of the shell 313; four through holes are opened on the outside of the shell 31, and the bottom shell 312 and the shell 313 are fastened by four screws.

[0040] When the transmission mechanism performs a transmission action, the top end of the limiting mechanism abuts against the transmission mechanism, and the limiting mechanism limits the clamping position of the second clamping part 2, which is in a state of clamping the separation and closing indicator disk; when the transmission mechanism performs a return action, the top end of the limiting mechanism is separated from the transmission mechanism, and the clamping position of the second clamping part 2 can move horizontally.

[0041] In this embodiment, the transmission mechanism includes: an external button 32, a driving rod 33, a connecting rod 34, a driven rod 35, and a plurality of spring rebound mechanisms. All the spring rebound mechanisms involved in this embodiment are prior art, and the rebound effect is achieved by springs and other components, which will not be described here. The limiting mechanism includes: a lower push rod 36 and a limiting member 37.

[0042] The external button 32 is arranged on the left side of the transmission part 3; one side of the driving rod 33 is connected to the external button 32 through a first spring rebound mechanism 321, and the other side is connected to the top of the connecting rod 34, and a convex block is arranged in the middle of the driving rod 33; the middle of the connecting rod 34 is fixed by a rotating shaft, and the bottom is connected to one side of the driven rod 35; the middle of the connecting rod 34 is hollow cylindrical, and a torsion spring 341 is sleeved on the inner side, and a circular hole of a certain depth is opened at the position of the bottom shell 312 above the rotating shaft for installing one side of the torsion spring 341, and the other side of the torsion spring 341 is sleeved on the top of the connecting rod 34 to give torsion force to the connecting rod 34; the other side of the driven rod 35 is connected to the second spring rebound mechanism 351, and a pressing piece 352 is arranged in the middle of the driven rod 35; the driving rod 33, the connecting rod 34, and the driven rod 35 form a U-shaped structure;

[0043] The push rod 36 is installed between the driving rod 33 and the driven rod 35; the limit member 37 is arranged directly below the pressing member 352; when the external button 32 is pressed, the driving rod 33 moves to the right, the driven rod 35 moves to the left, and the protrusion abuts against the upper part of the push rod 36 to produce a downward pressure; the push rod 36 causes the pressing member 352 and the limit member 37 to move downward.

[0044] See also Figure 1 , Figure 2 and Figure 4 The second clamping part 2 includes: an arc connector 21, a positioning assembly 22, and a fastening connector 23; the upper part of the fastening connector 23 is arc-shaped, and its outer diameter matches the inner diameter of the disc structure; the positioning assembly 22 is located on the right side of the fastening connector 23; the arc connector 21 is located directly above the positioning assembly 22, and the guide 211 arranged on its top is connected to the transmission part 3. The fastening connector 23 is bonded to the positioning assembly 22; the arc connector 21 and the positioning assembly 22 are fixedly connected by screws.

[0045] Referring to this embodiment, there is a cavity structure inside the positioning component 22, and a third spring rebound mechanism 220, a positioning column 221, a limit block 222, a top column 223 and a lower pressure plate 224 are arranged inside the cavity structure; there are two positioning columns 221, which are arranged at the bottom of the cavity structure; a limit block 222 is arranged on the top of the positioning column 221; the third spring rebound mechanism sleeve 220 is arranged on the positioning column 221; the bottom of the top column 223 and the lower pressure plate 224 are an integrally formed structure; the lower pressure plate 224 is provided with two through holes and is sleeved on the positioning column 221, and the lower pressure plate 224 is located between the third spring rebound mechanism 220 and the limit block 222. When performing the transmission action, the upper part of the top column 223 abuts against the limiting member 37, so that the second clamping part 2 moves to clamp the separation and combination indicator disk and achieves limiting; when performing the return action, the upper part of the top column 223 separates from the limiting member 37, so that the second clamping part 2 can move horizontally.

[0046] Referring to the present embodiment, the fastening connector 23 is preferably a rubber gasket to increase the friction with the separation and combination indicator disk, so that during the mechanical test, the separation and combination indicator disk and the clamping tooling do not move relative to each other.

[0047] In this embodiment, the limiting member 37 includes: a limiting plate 371, a limiting column 372, and a fourth spring rebound mechanism 373, which preferably adopts a compression spring; the limiting column 372 is provided with more than two, which are arranged at equal intervals at the bottom of the limiting plate 371 and are an integrated structure. In this embodiment, it is preferred to set the limiting column 372 to 4. A through hole is provided at the position of the limiting column 372 to limit the vertical movement space of the limiting column 372; the fourth spring rebound mechanism 373 is sleeved on the limiting columns 372 on both sides; the diameter of the through hole of the limiting columns 372 on both sides is enlarged downward at the top position to place the fourth spring rebound mechanism 373.

[0048] See also Figure 2 The clamping tool is also provided with a fifth spring rebound mechanism 212, and the fifth spring rebound mechanism 212 is located at the end of the guide member 211; the fifth spring rebound mechanism 212 preferably adopts a tension spring, and when the transmission part 3 and the second clamping part 2 are assembled, the other side of the fifth spring rebound mechanism 212 is installed on the installation groove wall on the right side of the guide rail.

[0049] Referring to the present embodiment, the push rod 36 includes: a trapezoidal platform 361, a connecting rod 362, a sixth spring rebound mechanism 363 and a downward pressing platform 364; the trapezoidal platform 361 is arranged at the top of the connecting rod 362, and the downward pressing platform 363 is arranged at the bottom of the connecting rod 362; the sixth spring rebound mechanism 363 is sleeved on the connecting rod 362, and is located between the trapezoidal platform 361 and the downward pressing platform 364, so as to add an auxiliary rebound effect to the push rod 36.

[0050] Referring to the present embodiment, the bottom of the connecting rod 34 is a step-shaped special-shaped structure, which is convenient for driving the driven rod 35 to move horizontally.

[0051] This embodiment uses a specific example to explain the action process of the clamping tool in detail. For example: when it is necessary to adjust the position of the second clamping part 2 to clamp the separation and combination indicator disk, just press the external button 32, manually move the second clamping part 2 to clamp the separation and combination indicator disk, and then release the external button 32; during this process, the internal movement process of the transmission part of the clamping tool is as follows: the driving rod 33 pushes the connecting rod 34 to the right to rotate counterclockwise, and the driven rod 35 moves to the left. At the same time, the protrusion hits the trapezoidal platform 361 of the lower push rod 36, and the lower push rod 36 moves downward. The lower pressure platform 364 pushes the lower pressure piece 352 to hit the limit piece 37 and move downward. The second spring rebound mechanism 351, the fourth spring rebound mechanism 373 and the sixth spring rebound mechanism 363 push the driven rod 35 to the right, and the limit piece 37 and the lower push rod 36 upward to return to their original positions. The top column 223 moves upward to the through hole of the limit column 372, and the second clamping part 2 and the separation and combination indicator disk are clamped. At this time, the mechanical property test equipment can be used to test the required parameters by rotating the speed sensor. When the test is completed, the disassembly process of the clamping tool is as follows: press the external button 32, the second clamping part 2 and the separation and combination indicator disk are released, and they can be disassembled; at this time, the internal movement of the clamping tool is as follows: the driving rod 33 pushes the connecting rod 34 to the right to rotate counterclockwise, and the driven rod 35 moves to the left. At the same time, the protrusion hits the trapezoidal platform 361 of the lower push rod 36, and the lower push rod 36 moves downward. The lower pressure platform 364 pushes the lower pressure piece 352 to hit the limit piece 37 and moves downward, and the top column 223 is pushed out of the through hole of the limit column 372, and the fifth spring rebound mechanism 212 drives the second clamping part 2 to move horizontally to the left, and the second clamping part 2 can move horizontally, so that it can be easily disassembled.

[0052] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A clamping tool for mechanical property testing, used for auxiliary testing of power equipment with operating mechanisms; characterized in that: The clamping tool comprises: a first clamping part, a second clamping part, and a transmission part; the operating mechanism is provided with an opening and closing indicator disk, one side of the first clamping part is provided on the outer side of the opening and closing indicator disk, and the other side is connected to a rotation speed sensor for mechanical property testing; the top of the first clamping part is fixedly connected to the left bottom surface of the transmission part; the second clamping part is located on the inner side of the opening and closing indicator disk; a guide rail is provided at the middle bottom of the transmission part, a guide member is provided at the top of the second clamping part, the guide rail is adapted to the guide member, and the second clamping part can be movably connected to the transmission part; The transmission part comprises: a housing, a transmission mechanism, and a limiting mechanism; the transmission mechanism and the limiting mechanism are installed in the housing; the transmission mechanism is a U-shaped transmission mechanism, and the limiting mechanism is arranged in the cavity of the U-shaped structure; When the transmission mechanism performs a transmission action, the top end of the limiting mechanism abuts against the transmission mechanism, and the limiting mechanism limits the clamping position of the second clamping part, which is in a state of clamping the separation and closing indicator disk; when the transmission mechanism performs a return action, the top end of the limiting mechanism is separated from the transmission mechanism, and the clamping position of the second clamping part can move horizontally.

2. A clamping tool for mechanical property testing according to claim 1, characterized in that: The first clamping part includes: a connecting head, a disc structure, and a top connecting piece; one side of the disc structure is a concave surface, and its concave surface shape matches the outer diameter of the separation and combination indicator disk; the connecting head is arranged on the opposite side of the concave surface; the top connecting piece is arranged directly above the connecting head and is fixedly connected to the bottom surface of the left side of the transmission part.

3. A clamping tool for mechanical property testing according to claim 1, characterized in that: The transmission mechanism includes: an external button, a driving rod, a connecting rod, a driven rod, and a plurality of spring rebound mechanisms; the limiting mechanism includes: a lower push rod and a limiting member; The external button is arranged on the left side of the transmission part; one side of the driving rod is connected to the external button through a first spring rebound mechanism, and the other side is connected to the top of the connecting rod, and a convex block is arranged in the middle of the driving rod; the middle of the connecting rod is fixed by a rotating shaft, and the bottom is connected to one side of the driven rod; the other side of the driven rod is connected to a second spring rebound mechanism, and a pressing piece is arranged in the middle of the driven rod; the driving rod, the connecting rod, and the driven rod form a U-shaped structure; The push rod is installed between the driving rod and the driven rod; the limit member is arranged directly below the pressing member; when the external button is pressed, the driving rod moves to the right, the driven rod moves to the left, the convex member abuts against the upper part of the push rod, generating a downward pressure; the pressing member and the limit member move downward through the push rod.

4. A clamping tool for mechanical property testing according to claim 2, characterized in that: The second clamping part includes: an arc connector, a positioning assembly, and a fastening connector; The upper part of the fastening connector is in an arc shape, and its outer diameter is adapted to the inner diameter of the concave surface of the disc structure; the positioning assembly is located on the right side of the fastening connector; the arc connector is located directly above the positioning assembly, and the guide member arranged on the top thereof is connected to the transmission part; The fastening connector is bonded to the positioning assembly; the arc connector is fixedly connected to the positioning assembly via screws.

5. A clamping tool for mechanical property testing according to claim 4, characterized in that: There is a cavity structure inside the positioning component, and a third spring rebound mechanism, a positioning column, a limit block, a top column and a lower pressure plate are arranged inside the cavity structure; there are two positioning columns, which are arranged at the bottom of the cavity structure; a limit block is arranged on the top of the positioning column; the third spring rebound mechanism is sleeved on the positioning column; the bottom of the top column and the lower pressure plate are an integrated structure; the lower pressure plate has two through holes and is sleeved on the positioning column, and the lower pressure plate is located between the third spring rebound mechanism and the limit block; When performing the transmission action, the upper part of the top column abuts against the limiting member, so that the second clamping part moves to clamp the separation and combination indicator disk and achieves limiting; when performing the return action, the upper part of the top column is separated from the limiting member, so that the second clamping part can move horizontally.

6. A clamping tool for mechanical property testing according to claim 4, characterized in that: The fastening connection piece is a rubber gasket.

7. The clamping tool for mechanical property testing according to claim 3, characterized in that: The limiting component includes: a limiting plate, a limiting column, and a fourth spring rebound mechanism; there are more than two limiting columns, which are evenly spaced at the bottom of the limiting plate and are an integrated structure; the fourth spring rebound mechanism is sleeved on the limiting columns on both sides.

8. The clamping tool for mechanical property testing according to claim 3, characterized in that: The clamping tool is also provided with a fifth spring rebound mechanism, and the fifth spring rebound mechanism is located at the end of the guide member.

9. The clamping tool for mechanical property testing according to claim 3, characterized in that: The push rod includes: a trapezoidal platform, a connecting rod, a sixth spring rebound mechanism and a pressing platform; the trapezoidal platform is arranged at the top of the connecting rod, the pressing platform is arranged at the bottom of the connecting rod, and the sixth spring rebound mechanism is sleeved on the connecting rod and is located between the pressing platform and the trapezoidal platform.

10. The clamping tool for mechanical property testing according to claim 3, characterized in that: The bottom of the connecting rod is a step-shaped special-shaped structure.

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