Vibration test fixture
By designing sliding and threaded connections for the fixed clamp, movable clamp, and fasteners, the problem of unstable clamping of test specimens in vibration tests of electronic products was solved, achieving stable clamping and safe holding of the test specimens.
Patent Information
- Application Number
- CN202422651212.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing vibration tests of electronic products or electronic components, relying on the operator's experience can easily damage the test specimen, and uneven torque of the clamping bar can lead to unstable clamping.
Design a vibration test fixture that includes a fixed clamp, a movable clamp, and fasteners. The test specimen is stably clamped by the sliding connection between the movable clamp and the fixed clamp and the threaded connection of the fasteners.
This method achieves stable clamping of the test sample, avoids damage caused by improper operation, and improves the stability and safety of clamping.
Smart Images
Figure CN223776950U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tooling and fixture technology, and particularly relates to a vibration testing fixture. Background Technology
[0002] Vibration testing of electronic products or electronic components is an essential part of the testing process. Since this test requires the product to be rigidly fixed to the test bench, it relies heavily on the experience of the operator during actual operation. Inexperienced operators are highly likely to damage the test specimen. For example, the test specimen is usually pressed onto the test bench by a pressure bar, but if the torque at both ends of the pressure bar is not equal or the torque is too large during operation, the test specimen will be damaged. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a vibration test fixture that is simple in structure, easy to use, and can clamp the test specimen well.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A vibration testing fixture includes a fixed clamp, a movable clamp, and a fastener. The fixed clamp has two parallel sliding arms. The movable clamp is placed between the two sliding arms, and both ends of the movable clamp are slidably connected to the two sliding arms respectively. The fastener is disposed on the fixed clamp and / or the movable clamp. The movable clamp can slide along the length direction of the two sliding arms. The fastener is used to limit the movable clamp to any position on its sliding trajectory, so that the test sample is clamped by the movable clamp and the fixed clamp together.
[0005] The beneficial effects of the above technical solution are as follows: the test specimen can be placed between the fixed clamp and the movable clamp, and the movable clamp can be slid to clamp the test specimen together with the fixed clamp. At this time, the movable clamp can be fastened to the fixed clamp by fasteners, and then the entire vibration test fixture can be installed on the vibration test platform.
[0006] The fixing clamp described in the above technical solution also includes clamping arms, and the two sliding arms are connected to the two ends of the clamping arms to form a U-shaped part.
[0007] The beneficial effect of the above technical solution is that the clamping arm and the two sliding arms together form a U-shaped fixed clamp, and the test sample is clamped between the clamping arm and the movable clamp.
[0008] In the above technical solution, the movable clamp is perpendicular to the two sliding arms.
[0009] The beneficial effect of the above technical solution is that the movable clamp and the fixed clamp form a square hole for clamping the test sample.
[0010] In the above technical solution, the two sliding arms are provided with mutually aligned sliding holes, and the sliding holes are straight strip-shaped holes arranged along the length direction of the corresponding sliding arms. Both ends of the movable clamp are provided with sliding pin blocks that extend into the corresponding sliding holes.
[0011] The beneficial effect of the above technical solution is that it makes the sliding connection between the movable clamp and the sliding arm simpler.
[0012] In the above technical solution, the sliding pin block is a plate-shaped block, and the two sides of the sliding pin block are in contact with the two sides of the corresponding long side of the sliding hole to restrict the rotation of the movable clamp.
[0013] The beneficial effect of the above technical solution is that the movable clamp can only slide in the fixed clamp and cannot rotate, thus making its clamping effect better.
[0014] In the above technical solution, a limiting block is also provided at one end of the two sliding pins that are far apart from each other. The two sliding arms are located between the two limiting blocks. Each limiting block is in contact with the corresponding sliding arm. The two limiting blocks are used to jointly restrict the movement of the movable clamp along its length direction.
[0015] The beneficial effect of the above technical solution is that the two limiting blocks can limit the movable clamp in the length direction, so that the movable clamp can only slide on the fixed clamp and cannot shake.
[0016] In the above technical solution, the fastener is a connecting rod and a handle. The movable clamp is provided with a connecting hole parallel to the sliding arm, and the fixed clamp is provided with a threaded hole aligned with the connecting hole. The connecting rod passes through the threaded hole, and one end of it is rotatably connected to the connecting hole. The handle is provided at the other end of the connecting rod, and the middle part of the connecting rod is provided with a thread that is threaded to the threaded hole. Tightening the handle allows the connecting rod to drive the movable clamp to move along the length direction of the two sliding arms.
[0017] The advantages of the above technical solution are: its structure is simple, and the fastener is similar to a screw drive to pull the movable clamp on the fixed clamp to clamp the test sample.
[0018] The above technical solution includes two fasteners, which are spaced apart along the length of the movable clamp.
[0019] The beneficial effect of the above technical solution is that the two fasteners work together to pull the movable clamp onto the fixed clamp, and the two fasteners are spaced apart along the length of the movable clamp, which makes the tightening of the movable clamp more stable.
[0020] In the above technical solution, both ends of the sliding arm are provided with a first mounting hole that passes through it, and the length direction of the sliding arm and the length direction of the movable clamp are both perpendicular to the first mounting hole.
[0021] The beneficial effect of the above technical solution is that it enables the vibration test fixture to be pre-installed on the vibration test platform through multiple first mounting holes.
[0022] The movable clamp described in the above technical solution is provided with a second mounting hole that penetrates through it, and the second mounting hole is parallel to the first mounting hole.
[0023] The beneficial effect of the above technical solution is that it enables the vibration test fixture to be pre-installed on the vibration test platform through the first mounting hole and the second mounting hole. Attached Figure Description
[0024] Figure 1 This is a simplified structural diagram of the vibration testing fixture described in this embodiment of the present invention;
[0025] Figure 2 This is an elevation view of the vibration testing fixture described in this embodiment of the present invention, excluding the fasteners.
[0026] Figure 3 This is an elevation view of the movable clamp described in an embodiment of this utility model.
[0027] In the figure: 1. Fixed clamp; 11. Sliding arm; 111. Sliding hole; 12. Clamping arm; 13. Threaded hole; 14. First mounting hole; 2. Movable clamp; 21. Sliding pin block; 22. Limiting block; 23. Connecting hole; 24. Second mounting hole; 3. Fastener; 31. Connecting rod; 32. Handle part; 4. Test sample. Detailed Implementation
[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will be more clearly described in light of the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0029] like Figure 1 and Figure 2As shown, this embodiment provides a vibration testing fixture, including a fixed clamp 1, a movable clamp 2, and a fastener 3. The fixed clamp 1 has two parallel sliding arms 11. The movable clamp 2 is placed between the two sliding arms 11, and both ends of the movable clamp 2 are slidably connected to the two sliding arms 11 respectively. The fastener 3 is disposed on the fixed clamp 1 and / or the movable clamp 2. The movable clamp 2 can slide along the length direction of the two sliding arms 11. The fastener 3 is used to limit the movable clamp 2 to any position on its sliding trajectory, so that the test specimen 4 can be clamped by the movable clamp 2 and the fixed clamp 1 together. In this way, the test specimen can be placed between the fixed clamp and the movable clamp, and the movable clamp can be slid to clamp the test specimen together with the fixed clamp. At this time, the movable clamp can be fastened to the fixed clamp by the fastener. Then the entire vibration testing fixture can be installed on the vibration testing platform.
[0030] The fixed clamp 1 described in the above technical solution also includes a clamping arm 12. The two sliding arms 11 are connected to the two ends of the clamping arm 12 to form a U-shaped part. At this time, the clamping arm and the two sliding arms together form a U-shaped fixed clamp, and the test sample is clamped between the clamping arm and the movable clamp.
[0031] In the above technical solution, the movable clamp 2 is perpendicular to the two sliding arms 11. At this time, the movable clamp and the fixed clamp form a square hole for clamping the test sample.
[0032] In the above technical solution, the two sliding arms 11 are provided with mutually aligned sliding holes 111, and the sliding holes 111 are straight strip-shaped holes arranged along the length direction of the corresponding sliding arm 11. Both ends of the movable clamp 2 are provided with sliding pin blocks 21 that extend into the corresponding sliding holes 111, which makes the sliding connection between the movable clamp and the sliding arm simpler.
[0033] like Figure 1 and Figure 3 As shown, the sliding pin block 21 in the above technical solution is a plate-shaped block. The two sides of the sliding pin block 21 are in contact with the two sides of the long side of the corresponding sliding hole 111 to restrict the rotation of the movable clamp 2. This makes the movable clamp only slide (slide along the length of the sliding arm) on the fixed clamp and cannot rotate, thus making its clamping effect better. Specifically, a limiting block 22 is also provided at the ends of the two sliding pin blocks 21 that are far apart from each other. The two sliding arms 11 are located between the two limiting blocks 22. Each limiting block 22 is in contact with the corresponding sliding arm 11. The two limiting blocks 22 are used to jointly restrict the movable clamp 2 from moving along its length direction. This allows the two limiting blocks to limit the movable clamp in the length direction, so that the movable clamp can only slide on the fixed clamp and cannot shake.
[0034] like Figure 3As shown, the sliding hole in this embodiment can also be an oval hole. Preferably, both sides of the sliding pin block 21 in this embodiment can be rounded so that the two sides of the sliding pin block can fit with the two ends of the sliding hole.
[0035] See details Figure 1 In the above technical solution, the fastener 3 comprises a connecting rod 31 and a handle 32. The movable clamp 2 has a connecting hole 23 parallel to the sliding arm 11, and the fixed clamp 1 has a threaded hole 13 aligned with the connecting hole 23. The connecting rod 31 passes through the threaded hole 13, and one end is rotatably connected to the connecting hole 23. The handle 32 is located at the other end of the connecting rod 31. The middle of the connecting rod 31 has a thread that is threaded to the threaded hole 13. Tightening the handle 32 allows the connecting rod 31 to drive the... The movable clamp 2 moves along the length of the two sliding arms 11. Its structure is simple, and the fastener, similar to a lead screw drive, pulls the movable clamp onto the fixed clamp to tighten the test specimen. In this embodiment, the connecting rod and handle are connected, resembling a bolt structure. Specifically, two fasteners 3 are provided, spaced apart along the length of the movable clamp 2. This allows the two fasteners to jointly tighten the movable clamp onto the fixed clamp, and the spaced distribution of the two fasteners along the length of the movable clamp ensures good tightening stability. In this embodiment, the two fasteners can rotate synchronously to drive the movable clamp to move and, together with the clamping arms, tighten or loosen the test specimen.
[0036] like Figures 1-3 As shown, in the above technical solution, both ends of the sliding arm 11 are provided with first mounting holes 14 that penetrate through it, and the length direction of the sliding arm 11 and the length direction of the movable clamp 2 are both perpendicular to the first mounting holes 14, so that the vibration test fixture can be pre-installed on the vibration test platform through multiple first mounting holes; preferably, the movable clamp 2 is provided with a second mounting hole 24 that penetrates through it, and the second mounting hole 24 is parallel to the first mounting hole 14, so that the vibration test fixture can be pre-installed on the vibration test platform through the first mounting hole and the second mounting hole.
[0037] Preferably, both the first and second mounting holes can be screw holes or smooth holes (holes with smooth inner walls). Before assembling the vibration fixture onto the vibration test platform, some of the first and second mounting holes can be selected for installation according to the needs of the mounting site. In addition, when the test specimen is large, multiple vibration fixtures can be stacked and used, so that the first mounting holes on the multiple fixtures are aligned and assembled together on the vibration test platform.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A vibration testing fixture, characterized in that, The device includes a fixed clamp (1), a movable clamp (2), and a fastener (3). The fixed clamp (1) has two parallel sliding arms (11). The movable clamp (2) is placed between the two sliding arms (11), and both ends of the movable clamp (2) are slidably connected to the two sliding arms (11). The fastener (3) is disposed on the fixed clamp (1) and / or the movable clamp (2). The movable clamp (2) can slide along the length direction of the two sliding arms (11). The fastener (3) is used to limit the movable clamp (2) to any position on its sliding trajectory so that the test specimen (4) can be clamped by the movable clamp (2) and the fixed clamp (1).
2. The vibration testing fixture according to claim 1, characterized in that, The fixing clamp (1) also includes clamping arms (12), and the two sliding arms (11) are connected to the two ends of the clamping arms (12) to form a U-shaped part.
3. The vibration testing fixture according to claim 1, characterized in that, The movable clamp (2) is perpendicular to the two sliding arms (11).
4. The vibration testing fixture according to claim 1, characterized in that, Two sliding arms (11) are provided with mutually aligned sliding holes (111), and the sliding holes (111) are straight strip-shaped holes arranged along the length direction of the corresponding sliding arm (11). Both ends of the movable clamp (2) are provided with sliding pin blocks (21) that extend into the corresponding sliding holes (111).
5. The vibration testing fixture according to claim 4, characterized in that, The sliding pin block (21) is a plate-shaped block. The two sides of the sliding pin block (21) are in contact with the two sides of the long side of the corresponding sliding hole (111) to restrict the rotation of the movable clamp (2).
6. The vibration testing fixture according to claim 4 or 5, characterized in that, Limiting blocks (22) are provided at the ends of the two sliding pins (21) that are far apart from each other. The two sliding arms (11) are located between the two limiting blocks (22). Each limiting block (22) is in contact with the corresponding sliding arm (11). The two limiting blocks (22) are used to jointly restrict the movement of the movable clamp (2) along its length direction.
7. The vibration testing fixture according to claim 1, characterized in that, The fastener (3) consists of a connecting rod (31) and a handle (32). The movable clamp (2) is provided with a connecting hole (23) parallel to the sliding arm (11). The fixed clamp (1) is provided with a threaded hole (13) aligned with the connecting hole (23). The connecting rod (31) passes through the threaded hole (13) and one end is rotatably connected to the connecting hole (23). The handle (32) is located at the other end of the connecting rod (31). The middle part of the connecting rod (31) is provided with a thread that is threaded to the threaded hole (13). The handle (32) is turned so that the connecting rod (31) drives the movable clamp (2) to move along the length direction of the two sliding arms (11).
8. The vibration testing fixture according to claim 7, characterized in that, Two fasteners (3) are provided, and the two fasteners (3) are spaced apart along the length direction of the movable clamp (2).
9. The vibration testing fixture according to claim 1, characterized in that, Both ends of the sliding arm (11) are provided with a first mounting hole (14) that passes through it, and the length direction of the sliding arm (11) and the length direction of the movable clamp (2) are both perpendicular to the first mounting hole (14).
10. The vibration testing fixture according to claim 9, characterized in that, The movable clamp (2) is provided with a second mounting hole (24) that passes through it, and the second mounting hole (24) is parallel to the first mounting hole (14).