A loading device
By combining fixed clamping parts, movable clamping parts, and elastic parts for clamping, and with the precise positioning of the positioning part and the testing machine, the problem of deformation of thin sheet-like samples during the sample loading process is solved, and the stability and accuracy of the test are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HENGSHI FIBER FOUND CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
In experimental research in the fields of materials science and engineering mechanics, thin sheet-shaped specimens are prone to deformation during the loading process due to insufficient rigidity, which affects the accuracy and reliability of the test.
The system employs a combination of fixed clamping components, movable clamping components, and elastic components. The elastic deformation of the elastic components provides a stable clamping force, ensuring that the sample is subjected to uniform force in the same plane. Combined with the positioning part that abuts against the testing machine, it ensures accurate sample positioning.
It achieves stable clamping of thin sheet-like samples, preventing loosening or falling off, ensuring the accuracy and coaxiality of test data, and is suitable for samples of different thicknesses, thus improving the stability and precision of the test.
Smart Images
Figure CN224435942U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of experimental equipment technology, and in particular to a sample loading device. Background Technology
[0002] In experimental research in materials science, engineering mechanics, and related fields, it is often necessary to conduct various mechanical property tests on specimens, such as tensile tests and compression tests. During the testing process, the accurate installation and fixation of the specimen is crucial to the accuracy and reliability of the test results. In related technologies, specimens are manually loaded. However, for thin-sheet specimens, due to the inherent weakness of the material, even slight stress during loading can easily cause deformation, affecting the accuracy of the test. Utility Model Content
[0003] To overcome the problems existing in related technologies, this application provides a sample loading device.
[0004] According to an embodiment of this disclosure, a sample loading apparatus is provided, comprising:
[0005] A fixing part is used to clamp both ends of the sample. The fixing part includes a fixed clamping member, a movable clamping member, and an elastic member. The movable clamping member is hinged to the fixed clamping member. One end of the elastic member is connected to the movable clamping member, and the other end of the elastic member is connected to the fixed clamping member. The elastic member is used to bring one end of the fixed clamping member and the movable clamping member closer to each other to clamp the sample.
[0006] The connecting part connects to the other end of the fixing clamp, so that the sample is kept in the same plane;
[0007] A positioning part is provided on the fixing part and is used to abut against the testing machine for positioning.
[0008] In some embodiments, the movable clamping member includes a first part and a second part, one end of the first part is close to one end of the fixed clamping member to clamp the sample, the other end of the first part is configured as a hinged end, the hinged end of the first part is hinged to the fixed clamping member, and one end of the second part is connected to the hinged end of the first part.
[0009] In some embodiments, the elastic element includes a torsion spring.
[0010] In some embodiments, the fixing part further includes a first fixing block, which is hinged to one end of the movable clamping member that holds the sample, and the first fixing block and the one end of the fixed clamping member that holds the sample are close to each other to clamp the sample.
[0011] In some embodiments, the fixing part further includes a second fixing block, which is hinged to one end of the fixing clamp that holds the sample, and the second fixing block and the first fixing block are close to each other to clamp the sample.
[0012] In some embodiments, the connecting portion includes a first connector, which is connected to the end of the fixing clamp that is away from clamping the sample, and the first connector is integrally formed with the fixing clamp.
[0013] In some embodiments, the connecting portion further includes a second connector that connects to the other end of the movable clamping member.
[0014] In some embodiments, the positioning part includes a positioning block and a fixing member.
[0015] The positioning block is slidably disposed on the fixed clamping member or the movable clamping member, and the positioning block is used to abut against the testing machine for positioning.
[0016] The fixing member is used to fix the positioning block to the fixed clamping member or the movable clamping member.
[0017] In some embodiments, the positioning block is sleeved on the fixed clamping member or the movable clamping member, the positioning block is provided with a threaded hole, the fixing member includes a bolt, the bolt is correspondingly disposed at the threaded hole, and abuts against the fixed clamping member or the movable clamping member.
[0018] In some embodiments, the positioning portion further includes scale lines, which are disposed on the fixing clamp along the extending direction of the fixing clamp.
[0019] The technical solutions provided by the embodiments of this application may include the following beneficial effects:
[0020] The sample loading device provided in this application utilizes a combination of fixed clamping parts, movable clamping parts, and elastic parts. The elastic deformation of the elastic parts adaptively applies a suitable clamping force to the sample. For thin, sheet-like samples, even with insufficient material rigidity, the elastic parts can provide a stable and sufficient clamping force without damaging the sample, preventing test interruptions or invalid data due to sample loosening or detachment during testing. Furthermore, the elastic parts can also be used to clamp samples of different thicknesses, making this application universally applicable. The connecting part ensures that the samples clamped by the fixed part are in the same plane, preventing damage due to uneven force distribution and ensuring sample stability during loading. The positioning part's abutment against the testing machine precisely determines the position of the fixed part within the testing machine, thereby accurately positioning the sample and ensuring coaxiality between the sample's force direction and the testing machine's loading direction, thus guaranteeing the accuracy of the test data.
[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0023] Figure 1 This is a front view of a sample loading device shown according to an exemplary embodiment.
[0024] Figure 2 This is a partial three-dimensional structural schematic diagram of a sample loading device according to an exemplary embodiment.
[0025] Figure 3 This is a partial three-dimensional structural schematic diagram of a sample loading device from another angle, according to an exemplary embodiment.
[0026] Figure label:
[0027] 1. Fixed part; 11. Fixed clamping part; 12. Movable clamping part; 121. First part; 122. Second part; 13. Elastic element; 14. Hinge seat; 15. First fixing block;
[0028] 2. Connecting part; 21. First connecting member; 22. Second connecting member;
[0029] 3. Positioning part; 31. Positioning block; 32. Fixing component; 33. Scale line;
[0030] 4. Sample. Detailed Implementation
[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0032] In experimental research in materials science, engineering mechanics, and related fields, it is often necessary to conduct various mechanical property tests on specimens, such as tensile tests and compression tests. During the testing process, the accurate installation and fixation of the specimen is crucial to the accuracy and reliability of the test results. In related technologies, specimens are manually loaded. However, for thin-sheet specimens, due to the inherent weakness of the material, even slight stress during loading can easily cause deformation, affecting the accuracy of the test.
[0033] This application provides a sample loading device, such as... Figure 1 As shown, the device includes a fixing part 1, a connecting part 2, and a positioning part 3. The fixing part 1 clamps both ends of the sample 4, the connecting part 2 connects to the fixing part 1 to keep both ends of the sample 4 in the same plane, and the positioning part 3 positions the sample 4 to be released from the fixing part 1. By keeping the sample 4 in the same plane, the sample 4 is subjected to uniform force, avoiding damage to the sample 4 and ensuring the stability of the sample during the loading process, thereby ensuring the accuracy of the test.
[0034] like Figure 2 and Figure 3 As shown, the fixing part 1 includes a fixed clamping member 11, a movable clamping member 12, and an elastic member 13. The fixed clamping member 11 and the movable clamping member 12 are hinged together, and the two ends of the elastic member 13 are respectively connected to the fixed clamping member 11 and the movable clamping member 12. The elastic member 13 is provided to bring one end of the fixed clamping member 11 and the movable clamping member 12 close to each other to clamp the sample 4.
[0035] The fixed clamping member 11 may be the same as or different from the movable clamping member 12, with one end of the fixed clamping member 11 corresponding to one end of the movable clamping member 12. One end of the fixed clamping member 11 is designated as the first clamping end, and the other end as the first movable end. One end of the movable clamping member 12 is designated as the second clamping end, and the other end as the second movable end. When the first clamping end and the second clamping end are close together, the sample 4 is clamped; when the first clamping end and the second clamping end are far apart, the sample 4 is released.
[0036] The fixed clamping member 11 and the movable clamping member 12 are hinged at their non-ends. The hinge position can be the middle of the fixed clamping member 11 and the middle of the movable clamping member 12, or the position of the fixed clamping member 11 near the first clamping end and the position of the movable clamping member 12 near the first clamping end, or the position of the fixed clamping member 11 away from the first clamping end and the position of the movable clamping member 12 away from the first clamping end.
[0037] like Figure 2 and Figure 3 As shown, a hinge seat 14 is provided on the fixed clamping member 11, and a rotating shaft is provided so that the rotating shaft passes through the hinge seat 14 and the movable clamping member 12 respectively, thereby realizing the hinge connection between the fixed clamping member 11 and the movable clamping member 12.
[0038] In some embodiments, the elastic element 13 is a torsion spring, wherein the torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are respectively connected to the fixed clamping element 11 and the movable clamping element 12. The elastic force of the torsion spring causes the first movable end and the second movable end to move away from each other, thereby bringing the first clamping end and the second clamping end closer to each other.
[0039] like Figure 1As shown, the fixing part 1 is provided in two sets, and the two sets of fixing parts 1 are respectively used to clamp the two ends of the sample 4. In other embodiments, the fixing part 1 can also be provided in multiple sets, and the fixing part 1 can clamp the middle part of the sample 4 to ensure the stability of the sample 4.
[0040] The connecting part 2 is used to connect the other end of the fixing clamp 11. That is, the connecting part 2 is used to connect the first movable ends of two or more fixing clamps 11, which can ensure that the fixing clamps 11 are on the same plane, thereby ensuring that the sample 4 is on the same plane when clamping the sample 4. The connecting part 2 can be a plate or a rod.
[0041] In one embodiment, a gripping part can be provided on the connecting part 2 to facilitate the gripping by the staff.
[0042] The positioning part 3 is disposed on the fixing part 1. When the fixing part 1 clamps the sample 4 and moves it to the testing machine, the positioning part 3 can abut against the testing machine to position the sample 4 in the testing machine. The positioning part 3 can be a bolt or a block.
[0043] In use, the fixing part 1 clamps both ends of the sample 4, and the device is moved so that the device and the sample 4 are in the testing machine. When the positioning part 3 abuts against the testing machine, it means that the sample 4 has been in the preset position, so that the testing machine fixes the sample 4. Then the clamping part 1 on the sample 4 is released, and the device is removed so that the sample 4 can be tested.
[0044] In this sample loading device, the fixed clamping member 11, the movable clamping member 12, and the elastic member 13 work together to adaptively apply a suitable clamping force to the sample 4 through the elastic deformation of the elastic member 13. For thin sheet-like samples 4, even if the material rigidity is insufficient, the elastic member 13 can provide a stable and sufficient clamping force without damaging the sample 4, preventing test interruption or invalid data due to loosening or falling off of the sample 4 during the test. Simultaneously, the elastic member 13 can also be used to clamp samples 4 of different thicknesses, making this application universally applicable. The connecting part 2 ensures that the sample 4 clamped by the fixed part 1 is in the same plane, preventing damage due to uneven force on the sample 4 and ensuring the stability of the sample 4 during loading. Through the abutment cooperation between the positioning part 3 and the testing machine, the position of the fixed part 1 on the testing machine can be accurately determined, thereby accurately positioning the sample 4 on the testing machine and ensuring the coaxiality of the force direction of the sample 4 with the loading direction of the testing machine, thus ensuring the accuracy of the test data.
[0045] In some embodiments, such as Figure 2 and Figure 3As shown, the movable clamping member 12 includes a first part 121 and a second part 122. One end of the first part 121 is close to one end of the fixed clamping member 11 to clamp the sample 4. The other end of the first part 121 is referred to as the hinge end. The hinge end of the first part 121 is hinged to the fixed clamping member 11. One end of the second part 122 is connected to the hinge end of the first part 121.
[0046] The extension direction of the first part 121 is set at an angle to the extension direction of the second part 122. The angle can be 30°, 60° or 90°. The second part 122 gradually moves away from the fixed clamp 11 from one end close to the first part 121 to the other end, forming a larger operating space around the movable clamp 12. This makes it easier to install or remove the sample 4 and avoids installation deviations caused by narrow space.
[0047] In some embodiments, such as Figure 2 and Figure 3 As shown, the fixing part 1 also includes a first fixing block 15, which is hinged to one end of the clamping sample 4 of the movable clamping member 12. The first fixing block 15 and the clamping sample 4 of the fixed clamping member 11 are close to each other to clamp the sample 4.
[0048] like Figure 2 and Figure 3 As shown, the cross-section of the first fixing block 15 can be triangular. One corner of the first fixing block 15 is hinged to one end of the clamping sample 4 of the fixing clamp 11 via a pin. When clamping the sample 4, the bottom surface of the first fixing block 15 corresponding to the pin contacts the sample 4. A buffer layer can also be provided on the side that contacts the sample 4. When clamping the sample 4, it can not only protect the surface of the sample 4 and prevent damage to the sample 4, but also increase friction and prevent the sample from slipping when clamping the sample 4.
[0049] In some embodiments, the fixing part 1 further includes a second fixing block, which is hinged to one end of the clamping sample 4 of the fixing clamp 11, and the second fixing block and the first fixing block 15 are close to each other to clamp the sample 4.
[0050] The second fixing block can be the same as the first fixing block 15. When clamping the sample 4, the corresponding sides of the first fixing block 15 and the second fixing block clamp the two sides of the sample 4. The arrangement of the first fixing block 15 and the second fixing block can increase the contact area between the movable clamping member 12 and the fixed clamping member 11 and the sample 4. Furthermore, the side of the first fixing block 15 and the second fixing block that contacts the sample 4 is always parallel to the sample 4, so that the fixing part 1 can firmly clamp the sample 4 and prevent the sample 4 from falling.
[0051] In some embodiments, such as Figure 2 and Figure 3As shown, the connecting part 2 includes a first connecting member 21, which is connected to the end of the fixed clamping member 11 away from the clamping sample 4. The first connecting member 21 is integrally formed with the fixed clamping member 11.
[0052] To ensure a more secure connection and fixation of the clamping component 11, such as Figures 1-3 As shown, the first connector 21 can be a plate-shaped object. The two ends of the first connector 21 are respectively connected to two fixed clamping members 11, and the extension direction of the first connector 21 is perpendicular to the extension direction of the fixed clamping members 11, so that the first connector 21 and the two fixed clamping members 11 form a U-shaped structure.
[0053] To facilitate gripping by the operator, a gripping plate can be provided in the middle of the first connector 21. The extension direction of the gripping plate is opposite to the extension direction of the fixed clamp 11, and the entire device can be moved by gripping the gripping plate.
[0054] The first connector 21 allows for more precise positioning of the clamping member 11, ensuring that the sample 4 remains in the same plane. Furthermore, the integral molding of the first connector 21 with the clamping member 11 improves the structural strength and overall stability of the device.
[0055] In some embodiments, such as Figure 2 and Figure 3 As shown, the connecting part 2 also includes a second connecting member 22, which connects to the second end of the movable clamping member 12. The second connecting member 22 is a rod-shaped object, and its two ends are respectively connected to the two movable clamping members 12. The connection position between the movable clamping member 12 and the second connecting member 22 is: the end of the movable clamping member 12 away from the clamping sample 4.
[0056] The second connector 22 allows for simultaneous control of the angles of the two movable clamping members 12 relative to the fixed clamping member 11, ensuring that the clamping forces of the two movable clamping members 12 and the corresponding fixed clamping members 11 are the same. This guarantees that the force on both ends of the sample 4 is uniform, avoids deformation of the sample 4, and ensures the accuracy of the test data.
[0057] In some embodiments, the positioning part 3 includes a positioning block 31 and a fixing member 32, wherein the positioning block 31 is used to abut against the testing machine for positioning. Figure 2 and Figure 3 As shown, the positioning block 31 is disposed on the fixed clamping member 11, and the fixing member 32 is used to fix the positioning block 31 to the fixed clamping member 11. The positioning block 31 and the movable clamping member 12 are independent of each other and do not contact each other. In other embodiments, the positioning block 31 is disposed on the movable clamping member 12, and the fixing member 32 is used to fix the positioning block 31 to the movable clamping member 12. The positioning block 31 and the fixed clamping member 11 are independent of each other and do not contact each other.
[0058] The number of positioning parts 3 is the same as the number of fixing parts 1, and the positioning parts 3 are arranged one-to-one with the fixing parts 1, that is, as shown in the figure. Figures 1-3 As shown, there are two fixed clamping parts 11 and two positioning parts 3. The two positioning parts 3 are arranged one-to-one with the fixed clamping parts 11, which can ensure more accurate positioning.
[0059] After the fixing part 1 clamps the sample 4, the device is moved to the testing machine. When the positioning block 31 comes into contact with the testing machine, it means that the sample 4 has reached the preset position. The setting of the fixing block can ensure that the sample 4 is in the same position on the testing machine every time, so as to better test the sample 4 and obtain accurate test data.
[0060] In some embodiments, such as Figure 2 and Figure 3 As shown, the positioning block 31 is sleeved on the fixed clamping member 11. The positioning block 31 has a through threaded hole. The fixing member 32 includes a bolt, which can be screwed into the threaded hole. The bolt abuts against the fixed clamping member 11 to fix the positioning block 31 to the fixed clamping member 11. In other embodiments, the positioning block 31 can also be sleeved on the movable clamping member 12. The bolt passes through the threaded hole of the positioning block 31 and abuts against the movable clamping member 12 to fix the positioning block 31 to the movable clamping member 12.
[0061] The positioning block 31 is fixed to the fixed clamping member 11 by bolts, which allows the position of the positioning block 31 to be flexibly adjusted according to different positioning requirements.
[0062] In some embodiments, such as Figure 3 As shown, the positioning part 3 also includes a scale line 33. When the positioning block 31 is set on the fixed clamping member 11, the scale line 33 is set on the fixed clamping member 11 along the extension direction of the fixed clamping member 11. When the positioning block 31 is set on the movable clamping member 12, the scale line 33 is set on the movable clamping member 12 along the extension direction of the movable clamping member 12. The position of the positioning block 31 can be precisely adjusted according to the scale line 33 to avoid positioning errors caused by human operation differences.
[0063] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.
[0064] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A loading device, characterized by include: A fixing part is used to clamp both ends of the sample. The fixing part includes a fixed clamping member, a movable clamping member, and an elastic member. The movable clamping member is hinged to the fixed clamping member. One end of the elastic member is connected to the movable clamping member, and the other end of the elastic member is connected to the fixed clamping member. The elastic member is used to bring one end of the fixed clamping member and the movable clamping member closer to each other to clamp the sample. The connecting part connects to the other end of the fixing clamp, so that the sample is kept in the same plane; A positioning part is provided on the fixing part and is used to abut against the testing machine for positioning.
2. The loading device of claim 1, wherein The movable clamping member includes a first part and a second part. One end of the first part is close to one end of the fixed clamping member to clamp the sample. The other end of the first part is set as a hinge end. The hinge end of the first part is hinged to the fixed clamping member. One end of the second part is connected to the hinge end of the first part.
3. The loading device of claim 1, wherein, The elastic element includes a torsion spring.
4. The loading device of claim 1, wherein, The fixing part further includes a first fixing block, which is hinged to one end of the movable clamping member that holds the sample. The first fixing block and the one end of the fixed clamping member that holds the sample are close to each other to clamp the sample.
5. The loading device of claim 4, wherein, The fixing part further includes a second fixing block, which is hinged to one end of the fixing clamp that holds the sample. The second fixing block and the first fixing block are close to each other to clamp the sample.
6. The loading device of claim 1, wherein, The connecting part includes a first connector, which is connected to the end of the fixing clamp that is away from clamping the sample, and the first connector is integrally formed with the fixing clamp.
7. The loading device of claim 1, wherein, The connecting part further includes a second connector, which connects to the other end of the movable clamping member.
8. The loading device of claim 1, wherein, The positioning part includes a positioning block and a fixing member. The positioning block is slidably disposed on the fixed clamping member or the movable clamping member, and the positioning block is used to abut against the testing machine for positioning. The fixing member is used to fix the positioning block to the fixed clamping member or the movable clamping member.
9. The loading device of claim 8, wherein, The positioning block is sleeved on the fixed clamping member or the movable clamping member. The positioning block is provided with a threaded hole. The fixing member includes a bolt, which is correspondingly disposed at the threaded hole and abuts against the fixed clamping member or the movable clamping member.
10. The loading device of claim 8, wherein, The positioning part also includes a scale line, which is disposed on the fixed clamping member along the extension direction of the fixed clamping member.