Clamping device for torsion test of plane piece

Abstract

The utility model belongs to the technical field of detection equipment, and particularly relates to a clamping device for a torsion test of a plane piece. The clamping device comprises a frame part, a first clamping part and a second clamping part, the first clamping part is connected with the frame part, the second clamping part and the first clamping part are oppositely arranged, the second clamping part is rotatably connected with the frame part, the rotating axis of the second clamping part is arranged in the first direction, the first clamping part is used for being connected with one side of the plane part, and the second clamping part is used for being connected with the other side of the plane part. The second clamping part is used for being connected with the other side of the plane piece. According to the clamping device provided by the embodiment of the utility model, when a torsion performance test is carried out, the relative position between the first clamping part and the frame part is fixed and the second clamping part is rotated, so that a torsion force can be accurately applied to the plane piece, and the torsion performance of the plane piece is tested. And the testing flexibility and accuracy are also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and in particular relates to a clamping device used for a torsion test of a plane piece. Background Art

[0002] In the fields of construction and mechanical processing, small elastic flat plate structures and plane frame structures are common load-bearing structures, which may be subject to torsional loads in practical applications. These loads may come from accidental damage to the structural connection parts, deformation during installation, or accidental human damage. Existing test fixtures mainly test the performance of these structures in withstanding vertical loads and plane tension, and rarely consider the test of torsional performance, resulting in the torsional strength of such structures in practical applications may become a hidden danger that restricts their application. Utility Model Content

[0003] The purpose of the utility model is to at least solve the problem that the mechanical performance test of the existing elastic plate or plane frame only focuses on bearing the load perpendicular to the plane and the plane stretching, and does not have the ability to test the torsion performance. This purpose is achieved through the following technical solutions:

[0004] The utility model proposes a clamping device for a torsion test of a flat piece, comprising:

[0005] Framework Department;

[0006] A first clamping portion, the first clamping portion is connected to the frame portion, and the first clamping portion is used to connect one side of the planar member;

[0007] The second clamping part is arranged opposite to the first clamping part, the second clamping part is connected to the frame part in a rotatable manner, and the rotation axis of the second clamping part is arranged along the first direction, and the second clamping part is used to connect the other side of the planar member.

[0008] According to the clamping device of the utility model, when performing a torsional performance test, by fixing the relative position between the first clamping part and the frame part and rotating the second clamping part, a torsional force can be accurately applied to the planar member, thereby testing its torsional performance. This design not only enhances the applicability of the device and can meet the needs of torsion testing, but also improves the flexibility and accuracy of the test. By simply adjusting the state of the first and second clamping parts, torsional mechanical performance tests can be performed on different planar members, which significantly improves the test efficiency and convenience and meets the changing experimental needs.

[0009] In addition, the clamping device according to the utility model may also have the following additional technical features:

[0010] In some embodiments of the present invention, the second clamping portion includes a rotating shaft and a first connecting rod connected to one end of the rotating shaft, the frame portion includes a platform, a first through hole is opened on the platform, the other end of the rotating shaft passes through the first through hole, and the rotating shaft is rotatably arranged in the first through hole.

[0011] In some embodiments of the present invention, the clamping device further includes a bushing connected to one end of the rotating shaft passing through the first through hole.

[0012] In some embodiments of the utility model, the clamping device also includes a positioning pin, a positioning portion is sleeved on the rotating shaft, a second through hole is opened on the positioning portion, a plurality of positioning holes are provided on the platform, some of the positioning pins are accommodated in the second through hole, and one end of the positioning pin can be inserted into any of the positioning holes.

[0013] In some embodiments of the present invention, angle scale lines are provided on the platform, and the angle scale lines are arranged along the circumference of the rotation axis.

[0014] In some embodiments of the present invention, the first clamping portion includes a second connecting rod and a mounting rod, and the second connecting rod is connected to the frame portion through the mounting rod.

[0015] In some embodiments of the utility model, the frame portion includes at least two oppositely arranged columns, each of the columns is provided with a slide groove, and sliders are respectively provided at both ends of the mounting rod, and the two sliders are respectively arranged in the slide grooves of the two columns.

[0016] In some embodiments of the present invention, a locking mechanism is provided on the slider, and the locking mechanism can abut against the column.

[0017] In some embodiments of the present invention, a connecting structure is provided on both the first clamping portion and the second clamping portion, and the connecting structure is used to connect the planar member.

[0018] In some embodiments of the present invention, a foot pad or a pulley is provided at the bottom of the frame portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 The structure diagram of the clamping device according to the embodiment of the utility model is schematically shown;

[0021] Figure 2 Schematically shows a front view of a clamping device according to an embodiment of the utility model;

[0022] Figure 3 Schematically shows a right side view of a clamping device according to an embodiment of the utility model;

[0023] Figure 4 Schematically shows a top view of a clamping device according to an embodiment of the utility model;

[0024] Figure 5 The structural diagram of the platform according to the embodiment of the utility model is schematically shown.

[0025] The reference numerals are as follows:

[0026] 100. Clamping device;

[0027] 10. Frame portion; 11. Post; 111. Slide groove; 12. Platform; 121. Positioning hole; 122. First through hole; 20. First clamping portion; 21. Second connecting rod; 22. Mounting rod; 221. Slider; 30. Second clamping portion; 31. First connecting rod; 32. Rotating shaft; 40. Bushing; 50. Positioning portion; 51. Second through hole; 60. Foot pad. DETAILED DESCRIPTION

[0028] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0029] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0030] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0031] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0032] like Figures 1 to 5 As shown, according to an embodiment of the utility model, a clamping device 100 for a torsion test of a planar member is proposed, the clamping device 100 includes a frame portion 10, a first clamping portion 20 and a second clamping portion 30, the first clamping portion 20 is connected to the frame portion 10, the second clamping portion 30 and the first clamping portion 20 are arranged opposite to each other, the second clamping portion 30 is rotatably connected to the frame portion 10, the rotation axis of the second clamping portion 30 is arranged along a first direction, the first clamping portion 20 is used to connect one side of the planar member, and the second clamping portion 30 is used to connect the other side of the planar member.

[0033] According to the clamping device 100 of this embodiment, when performing a torsional performance test, by fixing the relative position between the first clamping portion 20 and the frame portion 10 and rotating the second clamping portion 30, a torsional force can be accurately applied to the planar member, thereby testing its torsional performance. This design not only enhances the applicability of the device and can meet the needs of torsion testing, but also improves the flexibility and accuracy of the test. By simply adjusting the state of the first clamping portion 20 and the second clamping portion 30, torsional mechanical performance tests can be performed on different planar members, which significantly improves the test efficiency and convenience and meets the changing experimental needs.

[0034] In some embodiments, the second clamping part 30 includes a rotating shaft 32 and a first connecting rod 31 connected to one end of the rotating shaft 32, and the frame part 10 includes a platform 12, a first through hole 122 is opened on the platform 12, the other end of the rotating shaft 32 passes through the first through hole 122, and the rotating shaft 32 is rotatably arranged in the first through hole 122. Through the design of the rotating shaft 32 and the first connecting rod 31, the clamping device 100 can accurately control the torsion angle of the planar member. The rotatable setting of the rotating shaft 32 makes it both accurate and flexible when applying torsional force to the planar member, ensuring the accuracy and repeatability of the test results. The connection relationship between the second clamping part 30 and the frame part 10, especially the design of the rotating shaft 32 through the first through hole 122, provides a stable and reliable support structure. This stability is necessary for accurate torsion testing because it reduces possible errors and deviations during the test process. This embodiment is suitable for torsion testing through the coordinated use of the rotating shaft 32 and the first connecting rod 31.

[0035] Specifically, the rotating shaft 32 and the first through hole 122 are clearance-fitted, and a convex ring structure is provided at one end of the rotating shaft 32 passing through the first through hole 122, and the convex ring structure abuts against the upper surface of the platform 12 to prevent the rotating shaft 32 from moving downward. The rotating shaft 32 and the first through hole 122 are clearance-fitted to ensure that the rotating shaft 32 can rotate freely in the first through hole 122, while reducing the complexity of manufacturing and assembly, and ensuring the smoothness and stability of the rotation of the rotating shaft 32. A convex ring structure is designed at one end of the rotating shaft 32 passing through the first through hole 122. The diameter of this convex ring structure is larger than the first through hole 122, so that the convex ring can abut against the upper surface of the platform 12 when the rotating shaft 32 is subjected to a downward axial force, thereby preventing the rotating shaft 32 from moving downward or changing position during the test, providing an effective axial positioning mechanism, ensuring the stability of the rotating shaft 32 during the torsion test, and preventing the test error caused by the downward movement of the rotating shaft 32.

[0036] Specifically, the clamping device 100 further includes a bushing 40, which is connected to one end of the rotating shaft 32 passing through the first through hole 122. A through hole is provided along the radial direction of the rotating shaft 32, and the diameter of the through hole is larger than the outer diameter of the bushing 40. The bushing 40 is passed through the through hole, and then corresponding threaded holes are preset on the contact surface between the bushing 40 and the rotating shaft 32, and the two are fixedly connected by screws.

[0037] Specifically, the clamping device 100 also includes a positioning pin, a positioning portion 50 is sleeved on the rotating shaft 32, a second through hole 51 is opened on the positioning portion 50, and a plurality of positioning holes 121 are provided on the platform 12, part of the positioning pins are accommodated in the second through hole 51, and one end of the positioning pin can be inserted into one of the positioning holes 121. Through the design of the positioning portion 50 matching the plurality of positioning holes 121, the precise angle adjustment and positioning of the rotating shaft 32 can be achieved, which is very important for setting and reproducing a specific torsion angle when performing a torsion test, and improves the accuracy and repeatability of the experiment. The platform 12 is designed with a plurality of positioning holes 121, so that the clamping device 100 can adapt to planar parts of different lengths and sizes, increasing the scope of application and versatility of the clamping device 100. Furthermore, the size and shape of the second through hole 51 should strictly match the positioning pin to ensure that the positioning pin can be smoothly inserted and does not fall off during the torsion process.

[0038] It can be understood that, assuming that the line between the center of the first positioning hole 121 and the axis of the rotating shaft 32 is the first line, the line between the center of the second positioning hole 121 adjacent to the first positioning hole 121 along the radial direction of the rotating shaft 32 and the axis of the rotating shaft 32 is the second line, and the line between the center of the third positioning hole 121 adjacent to the first positioning hole 121 along the circumferential direction of the rotating shaft 32 and the axis of the rotating shaft 32 is the third line. The angle ( Figure 5 The angle between the first and third lines is 3°. Figure 5 The included angle (c) is 15°.

[0039] Specifically, angle scale lines are provided on the platform 12. By providing angle scale lines on the platform 12, the user can directly observe and set the required torsion angle, thereby ensuring the accuracy and repeatability of the test process. This intuitive setting method reduces the error of angle setting and improves the effectiveness of the experiment.

[0040] In some embodiments, the first clamping portion 20 includes a second connecting rod 21 and a mounting rod 22, and the fixing rod is connected to the frame portion 10 via the mounting rod 22. By combining the mounting rod 22 and the second connecting rod 21, this design provides a sturdy and reliable fixing mechanism to ensure the stability and safety of the planar member during the torsion test.

[0041] It can be understood that the frame portion 10 includes at least two columns 11 disposed opposite to each other. Specifically, the frame portion 10 includes a platform 12 and a bottom plate, and four columns 11 disposed opposite to each other. The platform 12 and the bottom plate have the same shape, both of which are rectangular, and the four corners of the platform 12 and the bottom plate are connected by four columns 11. The first clamping portion 20 includes two mounting rods 22 and a second connecting rod 21. The two mounting rods 22 are respectively connected to the columns 11 on opposite sides of the frame portion 10, and the two ends of the second connecting rod 21 are respectively connected to the midpoints of the two mounting rods 22.

[0042] Specifically, each column 11 is provided with a slide groove 111, and two ends of the mounting rod 22 are provided with sliders 221, and the two sliders 221 are respectively arranged in the slide grooves 111 of the two columns 11. The slide groove 111 guides the movement of the mounting rod 22, and the user can adjust the position of the plane part through a simple sliding operation, making the installation and adjustment process faster and more efficient, and reducing the test preparation time.

[0043] Specifically, the slider 221 is provided with a locking mechanism, which can abut against the column 11. The locking mechanism includes a spiral rod and a clamping nut. The spiral rod passes through the slider 221 and is provided with threads at one or both ends. The clamping nut can rotate along the spiral rod thread. The clamping nut abuts against the column 11. The clamping nut is rotated to squeeze the column 11 to achieve a fixing effect. For ease of operation, the clamping nut is usually designed with a handle or a knob, so that the user can manually tighten or loosen the nut without tools, thereby adjusting the position of the slider 221 or fixing the slider 221.

[0044] In some embodiments, the first clamping portion 20 and the second clamping portion 30 are both provided with a connection structure, and the connection structure is used to connect the planar member. By designing a dedicated connection structure on the first clamping portion 20 and the second clamping portion 30, the planar member can be quickly and conveniently installed on the clamping device 100, reducing the test preparation time and improving work efficiency. Specifically, the first connecting rod 31 and the second connecting rod 21 are provided with mounting holes, and the planar member can be fixed between the first connecting rod 31 and the second connecting rod 21 by passing a cable tie through the mounting hole.

[0045] In some embodiments, a foot pad 60 or a pulley is provided at the bottom of the frame portion 10. By providing a foot pad 60 at the bottom of the frame portion 10, the friction between the clamping device 100 and the working surface can be effectively increased to prevent the clamping device 100 from sliding or shifting during the torsion test, thereby ensuring the accuracy and repeatability of the test. A pulley is provided at the bottom of the device, especially a pulley with a locking mechanism, so that the clamping device 100 can be easily moved to different working positions to improve work efficiency. The locking mechanism ensures the stability of the device during the test.

[0046] In a specific embodiment, a clamping device 100 for testing the torsion performance of a planar member is provided. The clamping device 100 is composed of a frame portion 10 including a platform 12 and four columns 11, a first clamping portion 20, and a rotatable second clamping portion 30, which can conveniently fix and adjust the angle of the planar member. The first clamping portion 20 is height-adjustable through a mounting rod 22 and a slider 221 mechanism, while the second clamping portion 30 is precise in torsion operation through a rotating shaft 32. The rotating shaft 32 is designed with a convex ring structure to prevent downward movement, and cooperates with a plurality of positioning holes 121 of the frame portion 10 to achieve precise angle adjustment. Users can quickly fix the planar member by passing a cable tie through the mounting hole on the connecting rod, and perform a torsion test according to the test requirements. In addition, the bottom of the device is equipped with an adjustable foot pad 60 or a pulley with a locking mechanism to facilitate adaptation to different working environments and convenient movement. This clamping device 100 not only enhances the applicability of the experiment, but also can perform torsional mechanical property tests (such as torsional strength) on different planar parts by simply adjusting the state of the clamping part, which significantly improves the flexibility, accuracy and convenience of the test.

[0047] The method of using this embodiment is as follows: first, place the planar member to be tested between the first clamping part 20 and the second clamping part 30. Use a cable tie to pass through the mounting holes on the first connecting rod 31 and the second connecting rod 21 to fix the planar member between the two connecting rods. Secondly, when performing a torsion test, fix the relative position between the first clamping part 20 and the frame part 10 to ensure that they do not slide. By rotating the second clamping part 30 (i.e., the rotating shaft 32 and the first connecting rod 31 connected thereto), accurately apply a torsional force to the planar member to test its torsion performance. The angle of the rotating shaft 32 can be adjusted as needed, and the positioning part 50 can be used to cooperate with the positioning hole 121 to achieve accurate angle adjustment and positioning. In addition, according to the test environment, the foot pad 60 can be adjusted to adapt to an uneven working surface, or the clamping device 100 can be moved to a suitable working position using a pulley. After the test is completed, the pulley locking mechanism can be used to fix the position of the device for data recording and analysis. Through the above steps, the clamping device 100 of this embodiment can not only effectively perform torsional performance testing of planar parts, but also its design ensures the accuracy, repeatability and convenience of the test, and meets a wide range of experimental needs.

[0048] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A clamping device for torsion testing of a flat part, characterized in that: include: Framework Department; A first clamping portion, the first clamping portion is connected to the frame portion, and the first clamping portion is used to connect one side of the planar member; The second clamping part is arranged opposite to the first clamping part, the second clamping part is connected to the frame part in a rotatable manner, and the rotation axis of the second clamping part is arranged along the first direction, and the second clamping part is used to connect the other side of the planar member.

2. The clamping device for torsion test of a flat piece according to claim 1, characterized in that: The second clamping portion includes a rotating shaft and a first connecting rod connected to one end of the rotating shaft, the frame portion includes a platform, a first through hole is opened on the platform, the other end of the rotating shaft passes through the first through hole, and the rotating shaft is rotatably arranged in the first through hole.

3. The clamping device for torsion test of a flat piece according to claim 2, characterized in that: The clamping device further comprises a bushing connected to one end of the rotating shaft passing through the first through hole.

4. The clamping device for torsion test of a flat piece according to claim 2, characterized in that: The clamping device also includes a positioning pin, a positioning portion is sleeved on the rotating shaft, a second through hole is opened on the positioning portion, a plurality of positioning holes are provided on the platform, some of the positioning pins are accommodated in the second through hole, and one end of the positioning pin can be inserted into any of the positioning holes.

5. The clamping device for torsion test of a flat piece according to claim 2, characterized in that: The platform is provided with angle scale lines, and the angle scale lines are arranged along the circumference of the rotation axis.

6. The clamping device for torsion test of a flat piece according to claim 1, characterized in that: The first clamping portion includes a second connecting rod and a mounting rod, and the second connecting rod is connected to the frame portion through the mounting rod.

7. The clamping device for torsion test of a flat piece according to claim 6, characterized in that: The frame part comprises at least two oppositely arranged upright posts, each of the upright posts is provided with a slide groove, and two sliders are respectively provided at both ends of the mounting rod, and the two sliders are respectively arranged in the slide grooves of the two upright posts.

8. The clamping device for torsion test of a flat piece according to claim 7, characterized in that: The slide block is provided with a locking mechanism, and the locking mechanism can abut against the column.

9. The clamping device for torsion test of a flat piece according to any one of claims 1 to 8, characterized in that: The first clamping part and the second clamping part are both provided with a connecting structure, and the connecting structure is used to connect the planar member.

10. The clamping device for a torsion test of a flat piece according to any one of claims 1 to 8, characterized in that: The bottom of the frame is provided with foot pads or pulleys.

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