A clamping device for a tensile testing machine and a tensile testing machine

Abstract

This utility model relates to a clamping device and a tensile testing machine, including a fixed clamping plate, a clamping fixing plate, two clamping connecting rods, a clamping support plate, a clamping threaded rod, a movable clamping plate, and a handwheel. The fixed clamping plate is installed on the inner wall of the clamping fixing plate. Both sides of the clamping fixing plate are connected to the clamping support plate via the clamping connecting rods. The clamping support plate has threaded holes along the horizontal direction. One end of the clamping threaded rod passes through the threaded hole and connects to the movable clamping plate, and the clamping threaded rod is threadedly connected to the threaded hole. The movable clamping plate is located between the fixed clamping plate and the clamping support plate, and its two sides slide horizontally outside the clamping connecting rods. The other end of the clamping threaded rod is connected to the handwheel. Rotating the handwheel moves the movable clamping plate towards the fixed clamping plate to clamp the material to be clamped. This technical solution, through the connection of the handwheel and the clamping threaded rod, allows the operator to precisely control the distance between the movable and fixed clamping plates by rotating the handwheel. The operation is simple, effortless, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing machine technology, and in particular to a tensile testing machine clamping device and a tensile testing machine. Background Technology

[0002] In material mechanical property testing experiments, tensile testing machines are commonly used testing equipment, and the performance of their fixtures directly affects the accuracy of test results and experimental efficiency.

[0003] The existing clamp structure is poorly designed, requiring operators to exert considerable force to complete the clamping action. Prolonged operation can easily lead to operator fatigue and reduce work efficiency. Utility Model Content

[0004] Therefore, there is a need to provide a tensile testing machine clamping device and a tensile testing machine to solve the technical problems of the unreasonable design of existing clamping structures, which require operators to use a lot of force to complete the clamping action, and which can easily cause operator fatigue and reduce work efficiency during long-term operation.

[0005] To achieve the above objectives, this utility model provides a tensile testing machine clamping device, including a fixed clamping piece, a clamping fixing plate, two clamping connecting rods parallel to the horizontal direction, a clamping support plate, a clamping threaded rod, a movable clamping piece, and a handwheel. The fixed clamping piece is installed on the inner wall of the clamping fixing plate. Both sides of the clamping fixing plate are connected to the clamping support plate through the clamping connecting rods. The clamping support plate has threaded holes in the horizontal direction. One end of the clamping threaded rod passes through the threaded hole and is connected to the movable clamping piece. The clamping threaded rod is threadedly connected to the threaded hole. The movable clamping piece is located between the fixed clamping piece and the clamping support plate, and both sides slide horizontally outside the clamping connecting rods. The other end of the clamping threaded rod is connected to the handwheel. Rotating the handwheel causes the movable clamping piece to move closer to the fixed clamping piece to clamp the material to be clamped.

[0006] Unlike existing technologies, the above-mentioned solution uses a handwheel connected to the fixture's threaded rod, allowing the operator to precisely control the distance between the moving and fixed clamping plates simply by turning the handwheel. This simple and effortless operation improves work efficiency. Furthermore, the handwheel features a built-in self-locking thread structure, requiring only half a turn to pre-clamp the sample. In addition, the fixture connecting rod and fixture support plate form a stable triangular frame, which evenly distributes the clamping force and prevents the moving clamping plate from shifting.

[0007] In one embodiment of this utility model, the fixed clamping piece is provided with a first anti-slip pattern on the side facing the movable clamping piece, and the movable clamping piece is provided with a second anti-slip pattern on the side facing the fixed clamping piece.

[0008] In this way, by setting the first and second anti-slip patterns to increase friction, and by automatically adjusting the contact area according to the thickness of the material to be clamped, the tight fit of samples of different specifications such as blocks and plates can be ensured.

[0009] In one embodiment of this utility model, the fixed clamp has a first protrusion and the movable clamp has a second protrusion. The side of the first protrusion that protrudes toward the second protrusion is provided with a first anti-slip pattern, and the side of the second protrusion that protrudes toward the first protrusion is provided with a second anti-slip pattern.

[0010] Thus, by setting the first and second protrusions, the clamping force is concentrated on a localized area of ​​the material to be clamped. Corresponding anti-slip patterns are then applied to the contact surfaces of the protrusions to increase localized pressure.

[0011] As one embodiment of this utility model, the tensile testing machine clamping device also includes a connecting cover plate, which is installed on the side of the movable clamping plate facing the clamping support plate. One end of the clamping threaded rod passes through the threaded hole and the connecting cover plate and is connected to the movable clamping plate.

[0012] Thus, the universally designed connecting cover can effectively block dust and debris, protect the precision of internal transmission components, and extend the service life of the fixture.

[0013] As one embodiment of this utility model, the tensile testing machine clamping device further includes two or more fasteners, and the connecting cover is mounted on the side of the moving clamp facing the clamping support plate in its circumference by two or more fasteners.

[0014] In this way, the connecting cover and the moving clamp can be detachably connected by two or more fasteners, which facilitates installation and disassembly.

[0015] As one embodiment of this utility model, the tensile testing machine clamping device also includes a clamping connecting shaft, and the other end of the clamping threaded rod is connected to the handwheel through the clamping connecting shaft.

[0016] Thus, by setting the clamp connecting shaft, radial offset can be absorbed, preventing the clamp thread rod from jamming due to lateral force.

[0017] In one embodiment of this utility model, the movable clamping piece has arc-shaped grooves on both sides, which accommodate the clamping connecting rod and slide horizontally along the outer edge of the clamping connecting rod.

[0018] In this way, the sliding fit between the arc groove and the clamp connecting rod eliminates the eccentric friction, ensuring that the moving clamp moves horizontally without jamming.

[0019] As one embodiment of this utility model, the clamp connecting rod includes a sliding part and connecting parts at both ends of the sliding part. The diameter of the sliding part is larger than the diameter of the connecting part. One connecting part is fixed to the clamp fixing plate by a first nut, and the other connecting part is fixed to the clamp support plate by a second nut. The movable clamping piece slides horizontally along the outer edge of the sliding part.

[0020] In this way, the distance between the clamp fixing plate and the clamp support plate can be fixed by the connecting part, while the sliding part can ensure that the moving clamp piece slides on the outside, playing a guiding role.

[0021] In one embodiment of this utility model, the clamp fixing plate is L-shaped or inverted L-shaped.

[0022] Thus, the shape of the clamp fixing plate can be determined according to the location where the clamp is used.

[0023] To achieve the above objectives, in a second aspect, this utility model also provides a tensile testing machine, comprising:

[0024] frame;

[0025] The tensile testing machine clamping device, as provided by the inventor above, is mounted on the machine frame.

[0026] Unlike existing technologies, the technical solution of this application uses a handwheel to clamp the material to be held in the tensile testing machine's clamping device, which is simple to operate, requires little effort, and improves work efficiency. Furthermore, the handwheel has a built-in self-locking thread structure, requiring only half a turn to complete the sample pre-clamping.

[0027] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0028] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0029] In the accompanying drawings of the instruction manual:

[0030] Figure 1 This is a schematic diagram of the structure of a tensile testing machine according to an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of a tensile testing machine clamping device according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the tensile testing machine clamp device from another perspective of an embodiment of this application;

[0033] Figure 4 This is a partial enlarged view of a tensile testing machine clamping device according to an embodiment of this application;

[0034] Figure 5 This is another structural schematic diagram of a tensile testing machine clamping device according to one embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of a clamp connecting rod according to an embodiment of this application.

[0036] The reference numerals used in the above figures are explained as follows:

[0037] 100-Tension machine; 1-Frame; 2-Tension machine clamping device; 20-Fixed clamping piece; 201-First anti-slip pattern; 202-First protrusion; 21-Clamping fixing plate; 22-Clamping connecting rod; 221-Sliding part; 222-Connecting part; 223-First nut; 224-Second nut; 23-Clamping support plate; 24-Clamping threaded rod; 25-Moving clamping piece; 251-Second anti-slip pattern; 252-Second protrusion; 253-Arc groove; 26-Handwheel; 27-Connecting cover; 28-Fastener; 29-Clamping connecting shaft; X-Horizontal direction. Detailed Implementation

[0038] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0039] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0041] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0042] In this application, terms such as “" and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order relationship between these entities or operations.

[0043] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0044] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0045] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0046] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0047] For ease of explanation, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown by the arrow, the direction of arrow X is taken as the horizontal direction.

[0048] The existing clamp structure is poorly designed, requiring operators to exert considerable force to complete the clamping action. Prolonged operation can easily lead to operator fatigue and reduce work efficiency.

[0049] In view of this, this application provides a tensile testing machine clamping device 2, including a fixed clamping piece 20, a clamping fixing plate 21, two clamping connecting rods 22 parallel to the horizontal direction X, a clamping support plate 23, a clamping threaded rod 24, a movable clamping piece 25, and a handwheel 26. The fixed clamping piece 20 is installed on the inner wall of the clamping fixing plate 21. Both sides of the clamping fixing plate 21 are connected to the clamping support plate 23 through the clamping connecting rods 22. The clamping support plate 23 has a threaded hole along the horizontal direction X. One end of the clamping threaded rod 24 passes through the threaded hole and is connected to the movable clamping piece 25. The clamping threaded rod 24 is threadedly connected to the threaded hole. The movable clamping piece 25 is located between the fixed clamping piece 20 and the clamping support plate 23, and both sides slide along the horizontal direction X outside the clamping connecting rods 22. The other end of the clamping threaded rod 24 is connected to the handwheel 26. Rotating the handwheel 26 causes the movable clamping piece 25 to move closer to the fixed clamping piece 20 to clamp the material to be clamped.

[0050] According to some embodiments of this application, please refer to Figure 1 This embodiment relates to a tensile testing machine 100, including a frame 1 and a tensile testing machine clamping device 2, which is mounted on the frame 1.

[0051] Optionally, the tensile testing machine clamping device 2 has two clamps, one as an upper clamp and the other as a lower clamp. The lower clamp cooperates with the upper clamp to clamp the material to be clamped. The material to be clamped can be a plastic film or sheet, etc.

[0052] The technical solution of this application uses the handwheel 26 to clamp the material to be held by the tensile testing machine clamping device 2, which is simple to operate, requires little effort, and improves work efficiency. At the same time, the handwheel 26 has a built-in self-locking thread structure, which only requires half a turn to complete the pre-clamping of the sample.

[0053] According to some embodiments of this application, please refer to Figures 2 to 6 This embodiment relates to a tensile testing machine clamping device 2, including a fixed clamping piece 20, a clamping fixing plate 21, two clamping connecting rods 22 parallel to the horizontal direction X, a clamping support plate 23, a clamping threaded rod 24, a movable clamping piece 25, and a handwheel 26. The fixed clamping piece 20 is installed on the inner wall of the clamping fixing plate 21. Both sides of the clamping fixing plate 21 are connected to the clamping support plate 23 through the clamping connecting rods 22. The clamping support plate 23 has a threaded hole along the horizontal direction X. One end of the clamping threaded rod 24 passes through the threaded hole and is connected to the movable clamping piece 25. The clamping threaded rod 24 is threadedly connected to the threaded hole. The movable clamping piece 25 is located between the fixed clamping piece 20 and the clamping support plate 23, and both sides slide along the horizontal direction X outside the clamping connecting rods 22. The other end of the clamping threaded rod 24 is connected to the handwheel 26. Rotating the handwheel 26 causes the movable clamping piece 25 to move closer to the fixed clamping piece 20 to clamp the material to be clamped.

[0054] The fixed clamping plate 20 is fixed to the inner wall of the clamp fixing plate 21, providing a static clamping surface. The clamp connecting rod 22 consists of two rods parallel to the horizontal direction X, connecting the clamp fixing plate 21 and the clamp support plate 23. The clamp support plate 23 has a threaded hole for guiding the movement of the clamp threaded rod 24. The clamp threaded rod 24 mates with the threaded hole, with one end connected to the movable clamping plate 25 and the other end connected to the handwheel 26. Rotating the handwheel 26 converts its rotational motion into the linear motion of the movable clamping plate 25. Utilizing the mechanical gain effect of the screw pair, the movable clamping plate 25 moves closer to the fixed clamping plate 20 to clamp the material to be clamped, making operation simpler.

[0055] The above technical solution connects the handwheel 26 to the clamp threaded rod 24, allowing the operator to precisely control the distance between the moving clamp 25 and the fixed clamp 20 simply by turning the handwheel 26. This simple and effortless operation improves work efficiency. Simultaneously, the handwheel 26 has a built-in self-locking thread structure, requiring only half a turn to pre-clamp the sample. Furthermore, the clamp connecting rod 22 and the clamp support plate 23 form a triangular stable frame, which evenly distributes the clamping force and prevents the moving clamp 25 from shifting.

[0056] like Figures 2 to 4 As shown, the fixed clamping piece 20 is provided with a first anti-slip pattern 201 on the side facing the movable clamping piece 25, and the movable clamping piece 25 is provided with a second anti-slip pattern 251 on the side facing the fixed clamping piece 20.

[0057] Both the first anti-slip pattern 201 and the second anti-slip pattern 251 can be serrated anti-slip patterns and covered with a rubber layer with a high coefficient of friction.

[0058] In this way, by setting the first anti-slip pattern 201 and the second anti-slip pattern 251 to increase the friction, and automatically adjusting the contact area according to the thickness of the material to be clamped, the samples of different specifications such as blocks and plates can be tightly fitted.

[0059] like Figures 2 to 4 As shown, the fixed clip 20 has a first protrusion 202, and the movable clip 25 has a second protrusion 252. The side of the first protrusion 202 that protrudes toward the second protrusion 252 is provided with a first anti-slip pattern 201, and the side of the second protrusion 252 that protrudes toward the first protrusion 202 is provided with a second anti-slip pattern 251.

[0060] In actual use, turning the handwheel 26 clockwise causes the clamp threaded rod 24 to push the moving clamp 25 along the clamp connecting rod 22 toward the fixed clamp 20, so that the material to be clamped is clamped between the anti-slip pattern of the first protrusion 202 and the second protrusion 252. Turning the handwheel 26 in the opposite direction will release the clamp.

[0061] Thus, by setting the first protrusion 202 and the second protrusion 252, the clamping force is concentrated on a local area of ​​the material to be clamped. Corresponding anti-slip patterns are also set on the contact surface of the protrusions to increase local pressure.

[0062] like Figure 4 As shown, the tensile testing machine clamping device 2 also includes a connecting cover 27, which is installed on the side of the movable clamping piece 25 facing the clamping support plate 23. One end of the clamping threaded rod 24 passes through the threaded hole and the connecting cover 27 and is connected to the movable clamping piece 25.

[0063] Thus, the universal connection cover 27 can effectively block dust and debris, protect the precision of internal transmission components, and extend the service life of the fixture.

[0064] like Figure 4 As shown, the tensile testing machine clamping device 2 also includes two or more fasteners 28, and the connecting cover 27 is mounted on the side of the movable clamping piece 25 facing the clamping support plate 23 in its circumference by two or more fasteners 28.

[0065] Fastener 28 can be a bolt, stud, or screw, etc. In this embodiment, for example... Figure 4 As shown, the connecting cover 27 has four fasteners 28 evenly distributed around its circumference.

[0066] Thus, the connecting cover 27 and the movable clamp 25 are detachably connected by two or more fasteners 28, which facilitates installation and disassembly.

[0067] like Figure 5As shown, the tensile testing machine clamping device 2 also includes a clamping connecting shaft 29, and the other end of the clamping threaded rod 24 is connected to the handwheel 26 through the clamping connecting shaft 29.

[0068] The clamp connecting shaft 29 can serve as a transition component. One end is fixed to the handwheel 26 to transmit torque, and the other end is connected to the clamp threaded rod 24 to transmit axial thrust, thus separating the rotary motion from the linear motion and avoiding mutual interference.

[0069] Thus, by setting the clamp connecting shaft 29, radial offset can be absorbed, preventing the clamp threaded rod 24 from jamming due to lateral force.

[0070] like Figure 3 and Figure 4 As shown, the movable clamping piece 25 has arc-shaped grooves 253 on both sides, which accommodate the clamping connecting rod 22 and slide horizontally along the outer edge of the clamping connecting rod 22.

[0071] Thus, the sliding fit between the arc groove 253 and the clamp connecting rod 22 eliminates the off-center load friction, ensuring that the moving clamp 25 moves smoothly in the horizontal direction X without jamming.

[0072] like Figures 4 to 6 As shown, the clamp connecting rod 22 includes a sliding part 221 and connecting parts 222 at both ends of the sliding part 221. The diameter of the sliding part 221 is larger than the diameter of the connecting parts 222. One connecting part 222 is fixed to the clamp fixing plate 21 by a first nut 223, and the other connecting part 222 is fixed to the clamp support plate 23 by a second nut 224. The movable clamping piece 25 slides horizontally in the X direction outside the sliding part 221.

[0073] Thus, the distance between the clamp fixing plate 21 and the clamp support plate 23 can be fixed by the connecting part 222, while the sliding part 221 can ensure that the movable clamping piece 25 slides on the outside, playing a guiding role.

[0074] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the clamp fixing plate 21 is L-shaped or inverted L-shaped.

[0075] like Figure 1 As shown, when the tensile testing machine clamping device 2 is used as the lower clamp, the clamp fixing plate 21 is L-shaped; when the tensile testing machine clamping device 2 is used as the upper clamp, the clamp fixing plate 21 is inverted L-shaped.

[0076] Thus, the clamp fixing plate 21 is L-shaped or inverted L-shaped, enhancing structural stability. The shape of the clamp fixing plate 21 can be determined according to the location of the clamp.

[0077] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.

Claims

1. A clamping device for a tensile testing machine, characterized in that, The fixture includes a fixed clamping piece, a clamp fixing plate, two clamp connecting rods parallel to the horizontal direction, a clamp support plate, a clamp threaded rod, a movable clamping piece, and a handwheel. The fixed clamping piece is installed on the inner wall of the clamp fixing plate. Both sides of the clamp fixing plate are connected to the clamp support plate through the clamp connecting rods. The clamp support plate has threaded holes along the horizontal direction. One end of the clamp threaded rod passes through the threaded hole and connects to the movable clamping piece. The clamp threaded rod is threadedly connected to the threaded hole. The movable clamping piece is located between the fixed clamping piece and the clamp support plate, and both sides slide along the horizontal direction outside the clamp connecting rods. The other end of the clamp threaded rod is connected to the handwheel. Rotating the handwheel moves the movable clamping piece closer to the fixed clamping piece to clamp the material to be clamped.

2. The tensile testing machine clamping device according to claim 1, characterized in that, The fixed clamping piece has a first anti-slip pattern on the side facing the movable clamping piece, and the movable clamping piece has a second anti-slip pattern on the side facing the fixed clamping piece.

3. The tensile testing machine clamping device according to claim 2, characterized in that, The fixed clamp has a first protrusion, and the movable clamp has a second protrusion. The side of the first protrusion that protrudes toward the second protrusion is provided with the first anti-slip pattern, and the side of the second protrusion that protrudes toward the first protrusion is provided with the second anti-slip pattern.

4. The tensile testing machine clamping device according to claim 1, characterized in that, The tensile testing machine clamping device further includes a connecting cover plate, which is installed on the side of the movable clamping piece facing the clamping support plate. One end of the clamping threaded rod passes through the threaded hole and the connecting cover plate and is connected to the movable clamping piece.

5. The tensile testing machine clamping device according to claim 4, characterized in that, The tensile testing machine clamping device further includes two or more fasteners, and the connecting cover is mounted circumferentially on the side of the movable clamp facing the clamping support plate by the two or more fasteners.

6. The tensile testing machine clamping device according to claim 1, characterized in that, The tensile testing machine clamping device also includes a clamping connecting shaft, and the other end of the clamping threaded rod is connected to the handwheel through the clamping connecting shaft.

7. The tensile testing machine clamping device according to claim 1, characterized in that, The movable clamping piece has arc-shaped grooves on both sides, which accommodate the clamping connecting rod and slide along the horizontal direction outside the clamping connecting rod.

8. The tensile testing machine clamping device according to claim 1, characterized in that, The clamp connecting rod includes a sliding part and connecting parts at both ends of the sliding part. The diameter of the sliding part is larger than the diameter of the connecting part. One of the connecting parts is fixed to the clamp fixing plate by a first nut, and the other connecting part is fixed to the clamp support plate by a second nut. The movable clamping piece slides outside the sliding part along the horizontal direction.

9. The tensile testing machine clamping device according to claim 1, characterized in that, The clamp fixing plate is L-shaped or inverted L-shaped.

10. A tensile testing machine, characterized in that, include: frame; The tensile testing machine clamping device as described in any one of claims 1-9, wherein the tensile testing machine clamping device is mounted on the frame.

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