Tensile sample clamping device and tensile testing machine

Abstract

The utility model relates to the field of test equipment, and provides a tensile sample clamping device and a tensile testing machine. The tensile sample clamping device comprises a base, a containing groove is formed in the base, and a first via hole is formed in the first groove side wall of the containing groove; the first clamping seat and the second clamping seat are oppositely arranged, the first clamping seat and the second clamping seat are movably arranged in the containing groove, a first threaded hole is formed in the first clamping seat, and a second threaded hole is formed in the second clamping seat; the threaded rod penetrates through the first via hole and is in threaded connection with the first threaded hole and the second threaded hole; and the rotating directions of the first threaded hole and the second threaded hole are opposite. The tensile sample clamping device can ensure that the tensile sample is stably clamped; the device can adapt to tensile samples with different sizes; and the stability when the threaded rod drives the first clamping base and the second clamping base to act and the centering performance of movement of the first clamping base and the second clamping base are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment field provides a kind of tensile specimen clamping device and tensile testing machine. BACKGROUND

[0002] Fiber-reinforced composite material is a kind of composite material composed of reinforcing fiber material and matrix material, with lightweight, high specific strength, corrosion resistance, fatigue resistance and other excellent performance, widely used in aerospace, building, rail transit and many other fields.

[0003] When testing the performance of such composite materials, tensile testing is a very important method for evaluating key performance indicators such as tensile strength and elongation at break.

[0004] During the tensile test, the ends of the specimen need to be firmly clamped on the clamping device to maintain uniform stretching of the specimen when the tension is applied. The quality of the clamping device directly affects the accuracy and safety of the test.

[0005] However, most of the clamping devices on the market are only suitable for standard specimens with a width of 12.525 mm and a thickness of 14 mm. For non-standard specimens with larger sizes, existing clamping devices cannot be used. In addition, the traditional clamping device also has deficiencies in fixing effect, which is prone to specimen falling off, resulting in unstable test results and even risks to test safety. INVENTION CONTENTS

[0006] The utility model embodiment provides a kind of tensile specimen clamping device to solve the defects of poor clamping stability and low centering degree of tensile specimen clamping device in the related art.

[0007] The utility model also provides a kind of tensile testing machine.

[0008] The utility model first aspect embodiment provides a kind of tensile specimen clamping device, comprising:

[0009] A base is formed with a receiving groove, and a first through hole is formed on the first groove side wall of the receiving groove;

[0010] A first clamping seat and a second clamping seat are oppositely arranged, and the first clamping seat and the second clamping seat are movably arranged in the receiving groove, the first clamping seat is provided with a first threaded hole, and the second clamping seat is formed with a second threaded hole;

[0011] A threaded rod is provided in the first through hole and is threadedly connected with the first threaded hole and the second threaded hole respectively;

[0012] Wherein, the rotation direction of the first threaded hole and the second threaded hole is opposite.

[0013] According to one embodiment of the utility model, the base includes:

[0014] The first seat body is provided with a first groove, and the first clamping seat is arranged in the first groove;

[0015] The second seat body is provided with a second groove, and the second clamping seat is arranged in the second groove;

[0016] In the case of the first seat body and the second seat body, the first groove and the second groove form the accommodating groove.

[0017] According to one embodiment of the utility model, the first via is formed in the first groove side wall of the first groove and the first groove side wall of the second groove.

[0018] According to one embodiment of the utility model, the first groove side wall of the first groove is provided with a first avoiding opening, the second groove side wall of the second groove is provided with a second avoiding opening, and the first avoiding opening and the second avoiding opening are used for avoiding the threaded rod;

[0019] The first groove side wall and the second groove side wall are arranged opposite to each other.

[0020] According to one embodiment of the utility model, the first seat body and the second seat body are suitable for positioning installation through the positioning structure.

[0021] According to one embodiment of the utility model, the positioning structure includes:

[0022] The slot is formed in one of the first seat body and the second seat body.

[0023] The plug block is matched with the slot, and the plug block is formed in the other one of the first seat body and the second seat body.

[0024] According to one embodiment of the utility model, the first seat body is provided with a first clamping groove and a first limiting groove, the second seat body is provided with a second clamping groove and a second limiting groove, in the case of the first seat body and the second seat body, the first clamping groove and the second clamping groove are spliced to form a clamping groove, and the first limiting groove and the second limiting groove are spliced to form a limiting hole;

[0025] The base further includes a limiting block, a second via and a connecting end, the limiting block is arranged in the clamping groove, the connecting end is arranged in the limiting hole, the connecting end is used for connecting a testing machine, and the threaded rod is further arranged in the second via.

[0026] According to one embodiment of the present application, the width of the first slot is greater than the width of the first clamping seat, and the width of the second slot is greater than the width of the second clamping seat.

[0027] According to one embodiment of the present application, at least one end of the threaded rod is provided with a knob.

[0028] According to the first aspect of the present application, the first threaded hole and the second threaded hole are opposite in rotation direction, and when the threaded rod is rotated, the two clamping seats can be moved simultaneously and uniformly, thereby ensuring that the tensile specimen is stably clamped. This design avoids the shaking or slipping phenomenon that may occur during clamping. By rotating the threaded rod, the distance between the two clamping seats can be easily adjusted to accommodate tensile specimens of different sizes. This design makes the clamping device more versatile and flexible. By providing the first via hole on the slot side wall of the accommodating slot and threading the threaded rod therein, the stability of the threaded rod driving the first clamping seat and the second clamping seat to move and the centration of the first clamping seat and the second clamping seat moving are ensured. The structure of the entire clamping device is relatively simple, mainly composed of a base, clamping seats and a threaded rod. This design not only reduces the manufacturing cost, but also facilitates subsequent maintenance and maintenance work. The tensile specimen clamping device can be widely used in various material mechanical property tests, such as tensile test, compression test, etc. Its stable and reliable clamping performance provides a strong guarantee for the accuracy of test results. The second aspect of the present application provides a tensile testing machine comprising the tensile specimen clamping device as described above.

[0029] The tensile testing machine provided by the second aspect of the present application ensures stable clamping and accurate testing of the specimen through precise clamping capacity and adjustable clamping force, improving the accuracy of test results. The adjustability of the clamping device and the settable of the test parameters enable the tensile testing machine to adapt to the testing needs of specimens of different materials and sizes, enhancing the flexibility of testing. Advanced microcomputer control technology can also be used to realize automatic and intelligent testing process, greatly improving the testing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0031] Figure 1 is a schematic structural diagram of the tensile specimen clamping device provided by the present application.

[0032] Figure 2 is a schematic structural diagram of the base provided by the utility model.

[0033] Figure 3 is a schematic structural diagram of the first clamping seat provided by the utility model.

[0034] Figure 4 is a schematic structural diagram of the second clamping seat provided by the utility model.

[0035] Figure 5 is a schematic structural diagram of the threaded rod provided by the utility model.

[0036] Figure 6 is a schematic structural diagram of the first seat body provided by the utility model.

[0037] Figure 7 is a schematic structural diagram of the second seat body provided by the utility model.

[0038] Reference signs:

[0039] 100, base; 102, accommodating groove; 104, first through hole; 106, first clamping seat; 108, second clamping seat; 110, first threaded hole; 112, second threaded hole; 114, threaded rod; 116, first seat body; 118, first groove body; 120, second seat body; 122, second groove body; 124, first avoiding opening; 126, second avoiding opening; 128, insertion slot; 130, insertion block; 132, first clamping groove; 134, first limiting groove; 136, second clamping groove; 138, second limiting groove; 140, limiting block; 142, second through hole; 144, connecting end; 146, knob. DETAILED DESCRIPTION

[0040] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0041] As Figures 1 to 7 shown, the utility model first aspect embodiment provides a kind of tensile specimen clamping device, comprising:

[0042] Base 100, base 100 is formed with accommodating groove 102, first through hole 104 is formed on the first groove side wall of accommodating groove 102;

[0043] A first clamping seat 106 and a second clamping seat 108 are oppositely arranged and movably arranged in the accommodating groove 102, the first clamping seat 106 is provided with a first threaded hole 110, and the second clamping seat 108 is formed with a second threaded hole 112.

[0044] A threaded rod 114 is threaded in the first through hole 104 and is respectively screwed with the first threaded hole 110 and the second threaded hole 112.

[0045] Wherein, the first threaded hole 110 and the second threaded hole 112 are opposite in rotation direction.

[0046] According to the first aspect of the utility model, the first threaded hole 110 and the second threaded hole 112 are opposite in rotation direction, when the threaded rod 114 rotates, the two clamping seats can be moved simultaneously and uniformly, thereby ensuring that the tensile sample is stably clamped. This design avoids the shaking or slipping phenomenon that may occur during clamping. By rotating the threaded rod 114, the distance between the two clamping seats can be easily adjusted to adapt to tensile samples of different sizes. This design makes the clamping device have better versatility and flexibility. By arranging the first through hole 104 on the groove side wall of the accommodating groove 102 and threading the threaded rod 114 therein, the stability of the threaded rod 114 driving the first clamping seat 106 and the second clamping seat 108 to act and the centration of the first clamping seat 106 and the second clamping seat 108 moving are ensured. The structure of the whole clamping device is relatively simple, mainly composed of base 100, clamping seat and threaded rod 114 and the like. This design not only reduces the manufacturing cost, but also facilitates the subsequent maintenance and maintenance work. The tensile sample clamping device can be widely used in various material mechanical property tests, such as tensile test, compression test and the like. Its stable and reliable clamping performance provides a strong guarantee for the accuracy of test results.

[0047] Please continue to see Figures 1 to 7 The first aspect of the utility model provides a kind of tensile sample clamping device, which is mainly composed of the following parts:

[0048] Base 100: as the basic support part of the whole clamping device, base 100 is designed with an accommodating groove 102, for accommodating and supporting first clamping seat 106 and second clamping seat 108. On the first groove side wall of accommodating groove 102, a first through hole 104 is designed, for threading threaded rod 114.

[0049] The first clamping seat 106 and the second clamping seat 108 are oppositely arranged and used for clamping the tensile sample. They are movably arranged in the accommodating groove 102 so as to be adjusted according to the size of the sample. The first clamping seat 106 is designed with a first threaded hole 110, and the second clamping seat 108 is formed with a second threaded hole 112.

[0050] The threaded rod 114 is arranged in the first through hole 104 and is threadedly connected with the first threaded hole 110 and the second threaded hole 112 respectively. By rotating the threaded rod 114, the first clamping seat 106 and the second clamping seat 108 can be driven to move oppositely, so as to clamp or release the tensile sample.

[0051] In particular, the first threaded hole 110 and the second threaded hole 112 are opposite in rotation direction. This means that when the threaded rod 114 is rotated, the two clamping seats will move in opposite directions at the same time, thereby ensuring that the sample is uniformly and firmly clamped.

[0052] According to an embodiment of the utility model, the base 100 comprises:

[0053] The first seat body 116 is formed with a first groove body 118, and the first clamping seat 106 is arranged in the first groove body 118.

[0054] The second seat body 120 is formed with a second groove body 122, and the second clamping seat 108 is arranged in the second groove body 122.

[0055] In the case where the first seat body 116 and the second seat body 120 are spliced, the first groove body 118 and the second groove body 122 form the accommodating groove 102.

[0056] In an embodiment of the utility model, the base 100 is further optimized and refined in design, specifically comprising two independent but splicable parts of the first seat body 116 and the second seat body 120.

[0057] The first seat body 116 is part of the base 100, and the first seat body 116 is designed with the first groove body 118. The first clamping seat 106 is arranged and movably mounted in the first groove body 118. The shape and size of the first groove body 118 are designed to stably support and guide the first clamping seat 106, ensuring its stability and accuracy during clamping.

[0058] The second seat body 120 corresponds to the first seat body 116, and the second seat body 120 is also a component of the base 100. The second seat body 120 is designed with the second groove body 122, and the second clamping seat 108 is arranged and movably mounted in the second groove body 122. Similarly, the design of the second groove body 122 also ensures the stability and guidance of the second clamping seat 108.

[0059] When the first seat body 116 and the second seat body 120 are spliced, their first slot body 118 and second slot body 122 are combined together to form a complete accommodation slot 102. This accommodation slot 102 is used to accommodate and support the first clamping seat 106 and the second clamping seat 108, as well as the tensile specimen clamped by them.

[0060] By dividing the base 100 into two independent parts, the first seat body 116 and the second seat body 120, a modular design is achieved. This design makes the manufacturing, transportation and installation of the base 100 more convenient, while also reducing the cost. Modular design also means that when a part of the base 100 fails or is damaged, the part can be replaced individually without replacing the entire base 100. This greatly improves the maintainability and service life of the equipment. Since the first seat body 116 and the second seat body 120 can be spliced to form the accommodation slot 102, this design allows the base 100 to accommodate tensile specimens of different sizes and shapes. By adjusting the splicing method of the first seat body 116 and the second seat body 120, clamping of different specimens can be achieved. The design of the first slot body 118 and the second slot body 122 ensures the stability and guidance of the clamping seat during clamping, thereby improving the clamping accuracy. This is crucial to ensure the accuracy of the tensile test results.

[0061] According to an embodiment of the present application, the first through hole 104 is formed in the first slot side wall of the first slot body 118 and the first slot side wall of the second slot body 122.

[0062] In an embodiment of the present application, the first through hole 104 is ingeniously arranged on the first slot side wall of the first slot body 118 and the first slot side wall of the second slot body 122. This design means that the first through hole 104 is precisely opened at the same or corresponding position of the two slot bodies (the first slot body 118 and the second slot body 122).

[0063] Specifically, the first slot body 118 and the second slot body 122 are grooves or channels with a certain depth and width, each having at least one side wall, i.e. the "first slot side wall" here. The first through hole 104 is a channel or opening that penetrates the side wall, and the first through hole 104 allows the threaded rod 114 to pass through. This arrangement ensures the stability of the threaded rod 114 during rotation, thereby ensuring the fitting accuracy when the threaded rod 114 cooperates with the first threaded hole 110 and the second threaded hole 112.

[0064] According to an embodiment of the present application, the second slot side wall of the first slot body 118 is formed with a first avoiding opening 124, and the second slot side wall of the second slot body 122 is formed with a second avoiding opening 126, the first avoiding opening 124 and the second avoiding opening 126 are used to avoid the threaded rod 114;

[0065] The first slot side wall and the second slot side wall are oppositely arranged.

[0066] In an embodiment of the present application, the first slot body 118 and the second slot body 122 each have two opposite slot side walls, namely a first slot side wall and a second slot side wall. A first avoiding opening 124 is formed on the second slot side wall of the first slot body 118; correspondingly, a second avoiding opening 126 is formed on the second slot side wall of the second slot body 122. The main function of these two avoiding openings is to avoid the threaded rod 114, ensuring that the threaded rod 114 can be smoothly passed through or operated near it without being hindered by the slot body side wall.

[0067] The first slot body 118 and the second slot body 122 each have a first slot side wall and a second slot side wall, and the two groups of slot side walls are oppositely arranged. The first avoiding opening 124 is located on the second slot side wall of the first slot body 118, and its shape and size are determined according to the diameter of the threaded rod 114 and the required operating space. The second avoiding opening 126 is located on the second slot side wall of the second slot body 122, corresponding to the first avoiding opening 124, ensuring that the threaded rod 114 can be smoothly passed through or operated near it.

[0068] By setting the avoiding openings on the second slot side walls of the first slot body 118 and the second slot body 122, the space layout inside the slot body is optimized, and the space utilization rate is improved. This makes the threaded rod 114 more flexible in arrangement and operation, thereby meeting more extensive application requirements. The design of the avoiding openings makes the slot body structure more flexible, which can adapt to threaded rods 114 of different shapes and sizes. The avoiding openings provide convenience for the installation, disassembly and maintenance of the threaded rod 114. The operator can more easily access the threaded rod 114 to perform necessary operations and maintenance work, thereby improving work efficiency and safety.

[0069] According to an embodiment of the present application, the first seat body 116 and the second seat body 120 are suitable for positioning installation through a positioning structure.

[0070] In an embodiment of the present application, the positioning structure is a key component for realizing accurate positioning and installation of the first seat body 116 and the second seat body 120. It can include various mechanical or electronic elements, such as a convex shaft, a positioning hole, a spring, a gear, a cam, a photoelectric sensor, etc.

[0071] In a possible implementation, a convex shaft is provided on the first seat body 116 as a first positioning member, and a positioning hole is provided on the second seat body 120 as a second positioning member. When the first seat body 116 and the second seat body 120 are superimposed on each other, the convex shaft is clamped into the inside of the positioning hole, thereby limiting the relative movement of the two in the horizontal direction, realizing positioning installation.

[0072] The installer can bring the first seat body 116 and the second seat body 120 close to each other as needed, and accurately combine them together through the positioning structure. In some cases, it may also be necessary to use additional fasteners (such as bolts, nuts, etc.) to further fix the seat bodies to ensure their stability and reliability after installation.

[0073] The use of the positioning structure can significantly improve the installation accuracy of the first seat body 116 and the second seat body 120. Through accurate alignment and fixation, it can be ensured that the position and attitude of the seat bodies after installation meet the design requirements. The positioning structure makes the installation process simpler and more intuitive. The installer can more easily identify and operate the seat bodies, thereby reducing the installation difficulty and working time.

[0074] According to an embodiment of the present application, the positioning structure comprises:

[0075] The slot 128 is formed in one of the first seat body 116 and the second seat body 120.

[0076] The plug 130 is in plug-in cooperation with the slot 128, and the plug 130 is formed in the other one of the first seat body 116 and the second seat body 120.

[0077] In an embodiment of the present application, the slot 128 is a groove or an opening formed in one of the first seat body 116 and the second seat body 120. It has a certain shape and size for receiving and accommodating the plug 130. The design of the slot 128 can be adjusted according to actual needs, including its shape (such as rectangle, circle, polygon, etc.), depth, width, etc. Parameters to ensure tight cooperation with the plug 130.

[0078] The plug 130 is a protruding part that is in plug-in cooperation with the slot 128, and it is formed in the other one of the first seat body 116 and the second seat body 120. The shape, size and material of the plug 130 should match the slot 128 to ensure that the two can be smoothly plugged in and remain stable. The plug 130 can be designed to match the shape of the slot 128 completely, or it can have some elasticity or deformability to adapt to the slight differences of the slot 128 or the errors in the installation process.

[0079] When it is necessary to install the first seat body 116 and the second seat body 120 together, it is only necessary to align the plug 130 with the slot 128 and gently push it in. The plug 130 will gradually enter its interior along the guide of the slot 128 until it reaches the predetermined installation position. During the plugging process, the tight cooperation between the slot 128 and the plug 130 will generate a certain friction or clamping force, thereby preventing the relative movement between the seat bodies. This cooperation not only ensures the accuracy of the installation, but also improves the stability and reliability of the structure.

[0080] The installation process is made simpler and faster through the plug-in cooperation of the slot 128 and the block 130. The operator can complete the installation work without using complex tools or equipment, thereby reducing the installation cost and time. The precise cooperation of the slot 128 and the block 130 ensures the accurate positioning of the first seat body 116 and the second seat body 120 during the installation process. This helps to reduce installation errors and deviations, improve the accuracy and performance of the overall structure. The tight cooperation between the slot 128 and the block 130 increases the connection strength between the seat bodies. This connection mode not only improves the stability of the structure, but also helps to resist the influence of external forces or vibrations, thereby prolonging the service life of the equipment.

[0081] According to an embodiment of the present application, the first seat body 116 is formed with a first clamping groove 132 and a first limiting groove 134, and the second seat body 120 is formed with a second clamping groove 136 and a second limiting groove 138. In the case of the first seat body 116 and the second seat body 120, the first clamping groove 132 and the second clamping groove 136 are spliced to form a clamping groove, and the first limiting groove 134 and the second limiting groove 138 are spliced to form a limiting hole.

[0082] The base 100 further comprises a limiting block 140, a second through hole 142 and a connecting end 144. The limiting block 140 is arranged in the clamping groove, and the connecting end 144 is arranged in the limiting hole. The connecting end 144 is used for connecting a testing machine. The threaded rod 114 also passes through the second through hole 142.

[0083] In an embodiment of the present application, the first seat body 116 is designed with a first clamping groove 132 and a first limiting groove 134. The first clamping groove 132 is used for splicing with the second clamping groove 136 on the second seat body 120 to form a complete clamping groove. The first limiting groove 134 is spliced with the second limiting groove 138 on the second seat body 120 to form a limiting hole.

[0084] The second seat body 120 is also designed with a second clamping groove 136 and a second limiting groove 138 matched with the first seat body 116. When the first seat body 116 and the second seat body 120 are spliced together, these structures will be accurately combined.

[0085] The base 100 is designed with a limiting block 140, a second through hole 142 and a connecting end 144 as a supporting and connecting component. The limiting block 140 is ingeniously arranged in the spliced clamping groove to play a positioning and fixing role. The second through hole 142 is used for passing through the threaded rod 114 to realize further connection or fixation of the base 100 with other components.

[0086] The connecting end 144 is designed to pass through the spliced limiting hole and be connected with a testing machine or other equipment.

[0087] Firstly, the first seat body 116 and the second seat body 120 are precisely spliced together according to the design requirements, so that the first clamping groove 132 and the second clamping groove 136, the first limiting groove 134 and the second limiting groove 138 are respectively aligned and combined into a complete structure.

[0088] Then, the limiting block 140 on the base 100 is aligned and inserted into the spliced clamping groove to ensure the precise positioning and fixation between the base 100 and the seat body.

[0089] Next, the connecting end 144 is inserted into the limiting hole and connected with the test machine. At the same time, the threaded rod 114 passes through the second through hole 142 to realize further fixation and connection of the base 100 and other components.

[0090] Through the splicing design of the clamping groove and the limiting hole, and the cooperation of the limiting block 140 and the connecting end 144, the stability and reliability of the overall structure are significantly improved. This design helps to resist the influence of external force or vibration, thereby prolonging the service life of the equipment. The design of the utility model makes the installation process simpler and faster. The operator only needs to splice the seat body and the base 100 together according to the design requirements, and connect the connecting end 144 with the test machine or other equipment. This greatly reduces the installation difficulty and time cost. The connecting end 144 is inserted into the limiting hole and connected with the test machine, which ensures the reliability and stability of the electrical or signal connection. At the same time, the threaded rod 114 passes through the second through hole 142 to further reinforce the connection between the base 100 and other components, improving the firmness of the overall structure. The design of the utility model has high flexibility and adaptability, and can be applied to various test or connection scenarios. By adjusting the shape, size and material of the seat body and the base 100, the installation requirements of different test machines can be met.

[0091] According to an embodiment of the utility model, along the axial direction of the threaded rod 114, the width of the first groove body 118 is greater than the width of the first clamping seat 106, and the width of the second groove body 122 is greater than the width of the second clamping seat 108.

[0092] In an embodiment of the utility model, along the axial direction of the threaded rod 114, the width of the first groove body 118 is designed to be greater than the width of the first clamping seat 106. This design ensures that the first groove body 118 can accommodate the threaded rod 114 while providing sufficient space for the first clamping seat 106 to avoid being squeezed or deformed during installation or use.

[0093] Similarly, the width of the second groove body 122 is also designed to be greater than the width of the second clamping seat 108. This design ensures that the second groove body 122 can stably support the second clamping seat 108, while ensuring that the threaded rod 114 can smoothly pass through or operate near it.

[0094] Through the above design, the space between the groove and the clamping seat is optimized. This not only improves the stability of the overall structure, but also makes the threaded rod 114 and the clamping seat more flexible and reliable during installation and use. In addition, this design also helps to reduce wear and tear caused by friction between the clamping seat and the groove, thereby prolonging the service life of the equipment.

[0095] By ensuring that the width of the groove is greater than the width of the clamping seat, the stability of the overall structure is effectively improved. This design helps to prevent the clamping seat from deforming or being damaged during installation or use, and also facilitates the flexibility of movement of the first clamping seat 106 and the second clamping seat 108 relative to the first groove 118 and the second groove 122, respectively. This design makes the threaded rod 114 and the clamping seat more flexible and reliable during installation and use. This helps to meet the needs of various complex application scenarios, improving the adaptability and flexibility of the equipment. By reducing friction and wear between the clamping seat and the groove, we successfully prolong the service life of the equipment. This not only reduces maintenance costs, but also improves the reliability and durability of the equipment.

[0096] According to an embodiment of the present application, at least one end of the threaded rod 114 is provided with a knob 146.

[0097] In an embodiment of the present application, one or both ends of the threaded rod 114 are equipped with a knob 146. The knob 146 is usually a circular, easy-to-hold and operate part, which is tightly fixed on the threaded rod 114 so that the user can easily rotate the threaded rod 114.

[0098] The material of the knob 146 can be plastic, metal or other durable materials, depending on the application scenario and requirements. The surface of the knob 146 may be designed with anti-slip texture or protrusions to increase grip and prevent slipping during rotation.

[0099] The introduction of the knob 146 greatly improves the operational convenience of the threaded rod 114. Users can easily adjust the position or tightness of the threaded rod 114 by simply holding the knob 146 and rotating it. In application scenarios where the threaded rod 114 needs to be frequently adjusted, the design of the knob 146 can significantly reduce the operation time and physical exertion, improving work efficiency. The comfortable grip and easy-to-operate features of the knob 146 enhance the user experience. Users can more easily complete the rotation and adjustment of the threaded rod 114, reducing the difficulty of operation and fatigue. In some application scenarios, such as precision instruments or test equipment that require precise adjustment of the position of the threaded rod 114, the design of the knob 146 can improve the safety of operation. Through the knob 146, users can more accurately control the rotation speed and position of the threaded rod 114, reducing the risk of damage or failure due to excessive rotation or misoperation.

[0100] At the same time, the introduction of the knob 146 also helps to improve work efficiency. Users can more quickly adjust the threaded rod 114 to the desired position, thereby shortening the overall operation time.

[0101] The second aspect of the utility model provides a kind of tensile testing machine, including the tensile test sample clamping device as described above.

[0102] The second aspect of the utility model provides a kind of tensile testing machine, and the core feature of the tensile testing machine is that it includes the tensile test sample clamping device described above. The tensile test sample clamping device used by the tensile testing machine is ingenious in design, and can ensure stable clamping and accurate testing of the sample during the tensile test.

[0103] The tensile testing machine provided by the second aspect of the utility model ensures stable clamping and accurate testing of the sample through accurate clamping capacity and adjustable clamping force, improves the accuracy of test results. The adjustability of the clamping device and the settable nature of test parameters enable the tensile testing machine to adapt to the testing needs of samples of different materials and sizes, enhancing the flexibility of testing. Advanced microcomputer control technology can also be used to realize automated and intelligent testing processes, greatly improving testing efficiency.

[0104] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tensile specimen clamping device characterized by comprising: The utility model relates to a base (100) is formed with containing groove (102) on, the first via hole (104) is formed with on the first groove side wall of containing groove (102); First clamping seat (106) and second clamping seat (108) are oppositely arranged, and first clamping seat (106) and second clamping seat (108) are movably arranged in containing groove (102), first threaded hole (110) is arranged on first clamping seat (106), and second threaded hole (112) is formed on second clamping seat (108); Threaded rod (114) is threaded in first via hole (104) and is respectively screwed with first threaded hole (110) and second threaded hole (112); Wherein, the rotation direction of first threaded hole (110) and second threaded hole (112) is opposite. The base (100) comprises:

2. The tensile specimen gripping device of claim 1, wherein First seat body (116) is formed with first groove body (118) on, and first clamping seat (106) is arranged in first groove body (118); Second seat body (120) is formed with second groove body (122) on, and second clamping seat (108) is arranged in second groove body (122); In the splicing of first seat body (116) and second seat body (120), first groove body (118) and second groove body (122) form containing groove (102). First via hole (104) is formed in the first groove side wall of first groove body (118) and the first groove side wall of second groove body (122) respectively.

3. The tensile specimen gripping device of claim 2, wherein First avoiding mouth (124) is formed on the second groove side wall of first groove body (118), and second avoiding mouth (126) is formed on the second groove side wall of second groove body (122), and first avoiding mouth (124) and second avoiding mouth (126) are used to avoid threaded rod (114); 4. The tensile specimen gripping device of claim 2, wherein Wherein, the first groove side wall is oppositely arranged with the second groove side wall. First seat body (116) and second seat body (120) are suitable for positioning installation through positioning structure.

5. The tensile specimen gripping device of claim 2, wherein, The positioning structure comprises:

6. The tensile specimen gripping device of claim 5, wherein, Slot (128) is formed in one of first seat body (116) and second seat body (120); Insert block (130) is inserted into the slot (128) and is matched, and the insert block (130) is formed in the other of the first seat body (116) and the second seat body (120). ​ 7. The tensile specimen clamping device according to any one of claims 2 to 6, characterized in that The first seat body (116) is formed with a first clamping groove (132) and a first limiting groove (134), and the second seat body (120) is formed with a second clamping groove (136) and a second limiting groove (138); the first clamping groove (132) and the second clamping groove (136) are spliced to form a clamping groove, and the first limiting groove (134) and the second limiting groove (138) are spliced to form a limiting hole in the case of the first seat body (116) and the second seat body (120); The base (100) further comprises a limiting block (140), a second through hole (142) and a connecting end (144); the limiting block (140) is arranged in the clamping groove, the connecting end (144) is arranged in the limiting hole, and the connecting end is used for connecting a testing machine; and the threaded rod (114) is further arranged in the second through hole (142).

8. The tensile specimen clamping device according to any one of claims 2 to 6, characterized in that In the axial direction of the threaded rod (114), the width of the first groove body (118) is greater than the width of the first clamping seat (106), and the width of the second groove body (122) is greater than the width of the second clamping seat (108).

9. The tensile specimen clamping device according to any one of claims 1 to 6, characterized in that At least one end of the threaded rod (114) is provided with a knob (146).

10. A tensile testing machine characterized by, A tensile specimen clamping device comprising any one of claims 1 to 9. A tensile specimen clamping device comprising any one of claims 1 to 9.

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