CN220251304U - General vibration test fixture - Google Patents
General vibration test fixture Download PDFInfo
- Publication number
- CN220251304U CN220251304U CN202321749528.XU CN202321749528U CN220251304U CN 220251304 U CN220251304 U CN 220251304U CN 202321749528 U CN202321749528 U CN 202321749528U CN 220251304 U CN220251304 U CN 220251304U
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- face
- bottom fixing
- partition plates
- front mounting
- utility
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000005192 partition Methods 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model provides a universal vibration test fixture which is formed by integral casting and comprises a front mounting surface, a bottom fixing surface and a back frame structure; the front mounting surface is a complete plane and is used for being fixed with a mounting plate of the back vibration isolator; the bottom fixing surface is a complete plane and is used for being connected with the vibrating table; the back frame structure comprises a plurality of partition plates which are distributed at intervals, the front face and the bottom face of each partition plate are respectively connected with the front mounting face and the bottom fixing face, the plurality of partition plates are connected through a plurality of horizontal reinforcing ribs which are distributed at intervals from top to bottom, and the partition plates and the horizontal reinforcing ribs are hollow structures. The utility model has high rigidity and light weight, and can meet the use requirement of marine equipment in vibration test.
Description
Technical Field
The utility model relates to the technical field of vibration test tool clamps, in particular to a universal vibration test clamp.
Background
In environmental tests, the test fixture is a force transfer member that transmits the vibration or excitation force of the impact table, and the test fixture should be sufficiently rigid to ensure that the elastic support system is not affected by the resonance amplification caused by the fixture during the vibration impact. In theory, the test fixture body should be rigidly connected with the tested equipment and the table top, which is only an ideal target of fixture design and manufacture, and is difficult to realize in practice. In the vibration impact test, the phenomenon of over test or under test is often caused by the test clamp, so that the tested equipment is damaged or the test standard is not met.
The most important design of the clamp is to design the rigidity, the quality and the natural frequency of the clamp, and in order to ensure the accuracy and the reproduction of the test, the design must follow the frequency doubling principle, and the frequency doubling rule is as follows: when the upper limit frequency of vibration excitation isWhen the clamp is used, the first-order natural frequency of the clamp is required to meet +.>In this case, it is considered that the clamp transmits the vibration excitation force to the test piece without distortion, and therefore, it is theoretically required to increase the first order natural frequency of the clamp as much as possible, but in actual use, the clamp is often difficult to achieve due to the restrictions of various factors such as weight and force limitation of the vibration table.
Taking ship equipment as an example, the HJB68 prescribes that electronic equipment such as a cabinet and a display console are installed by leaning on a wall and are required to be maintained on the front surface in a ship cabin, and the standard heights of the cabinet and the display console are 1.6 m, so that the vibration test clamp at least needs 1.6 m Gao Cai to meet the use requirement, the higher the first-order frequency of the clamp is, the more difficult the higher the first-order frequency of the clamp is, the cabinet occupies most of the space of a vibration table board (1.5 m multiplied by 1.5 m), the space reserved for the test clamp is small, and therefore, the vibration test of the equipment cannot be carried out by many marine test clamps because the horizontal natural frequency is too low.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides the universal vibration test clamp which has high rigidity and light weight and can meet the use requirement of marine equipment in a vibration test.
The utility model adopts integral casting molding, and comprises a front mounting surface, a bottom fixing surface and a back frame structure;
the front mounting surface is a complete plane and is used for being fixed with a mounting plate of the back vibration isolator;
the bottom fixing surface is a complete plane and is used for being connected with the vibrating table;
the back frame structure comprises a plurality of partition plates which are distributed at intervals, the front face and the bottom face of each partition plate are respectively connected with the front mounting face and the bottom fixing face, the plurality of partition plates are connected through a plurality of horizontal reinforcing ribs which are distributed at intervals from top to bottom, and the partition plates and the horizontal reinforcing ribs are hollow structures.
Further improved, the partition board is of a right trapezoid structure.
Further improved, the front mounting surface is provided with a plurality of rows of mounting screw holes, so that the mounting plates of the cabinet and the display console back vibration isolator with different heights can be conveniently fixed, and the clamp has general characteristics.
Further improved, the bottom fixing surface is provided with a mounting through hole according to standard screw hole positions of the vibrating table.
The utility model has the beneficial effects that:
1. the problem that the marine equipment cannot normally perform the vibration test due to the fact that the rigidity of the test clamp is too low in the vibration test is solved, and the integral casting general type vibration test clamp with high rigidity and light weight is provided.
2. The back frame structural design has the advantages of stable support and good rigidity, and the weight of the clamp is greatly reduced.
3. The front mounting surface and the bottom fixing surface or other positions which do not affect the structural rigidity can be properly designed into partial weight reducing grooves or weight reducing holes according to the actual use requirements, so that the weight of the clamp is further reduced.
4. The clamp is formed by integral casting, and compared with welding forming and screw connecting forming, the same structural form adopts a casting forming process to form the structure with the greatest rigidity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a side view of the present utility model;
FIG. 4 is a rear view of the present utility model;
fig. 5 is a rear isometric view of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An embodiment of the utility model is shown in fig. 1-5, and is formed by integral casting and comprises a front mounting surface 1, a bottom fixing surface 2 and a back frame structure;
the front mounting surface is a complete plane and is used for being fixed with a mounting plate of the back vibration isolator; the front mounting surface is provided with a plurality of rows of mounting screw holes 5, so that the mounting plates of the cabinet and the display console back vibration isolators with different heights can be conveniently fixed, and the clamp has general characteristics.
The bottom fixing surface is a complete plane and is used for being connected with the vibrating table; the bottom fixing surface is provided with a mounting through hole according to standard screw hole positions of the vibrating table.
The back frame structure comprises a plurality of partition plates 3 of right trapezoid structures which are distributed at intervals, the front faces and the bottom faces of the partition plates are respectively connected with a front mounting face and a bottom fixing face, a plurality of partition plates are connected through a plurality of horizontal reinforcing ribs 4 which are distributed at intervals from top to bottom, and the partition plates and the horizontal reinforcing ribs are of hollow structures.
The processing method of the utility model is as follows: after casting, the front and the bottom surfaces are processed on processing equipment, the use surfaces (front and bottom surfaces) are required to be processed smoothly, the screw holes and the through holes are processed, an aluminum alloy material is adopted, the material density is low, the weight is light, the material is softer, and the screw holes are required to be inlaid with steel wire threaded sleeves for protection. The whole body is protected after being processed and molded, and is convenient for long-term use.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the equipment examples, what has been described above is merely a preferred embodiment of the utility model, which, since it is substantially similar to the method examples, is described relatively simply, as relevant to the description of the method examples. The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, since modifications and substitutions will be readily made by those skilled in the art without departing from the spirit of the utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (4)
1. A commonality vibration test anchor clamps, its characterized in that: the integrated casting molding is adopted, and comprises a front mounting surface, a bottom fixing surface and a back frame structure;
the front mounting surface is a complete plane and is used for being fixed with a mounting plate of the back vibration isolator;
the bottom fixing surface is a complete plane and is used for being connected with the vibrating table;
the back frame structure comprises a plurality of partition plates which are distributed at intervals, the front face and the bottom face of each partition plate are respectively connected with the front mounting face and the bottom fixing face, the plurality of partition plates are connected through a plurality of horizontal reinforcing ribs which are distributed at intervals from top to bottom, and the partition plates and the horizontal reinforcing ribs are hollow structures.
2. The universal vibration testing jig of claim 1, wherein: the partition board is of a right trapezoid structure.
3. The universal vibration testing jig of claim 1, wherein: the front mounting surface is provided with a plurality of columns of mounting screw holes.
4. The universal vibration testing jig of claim 1, wherein: the bottom fixing surface is provided with a mounting through hole according to standard screw hole positions of the vibrating table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321749528.XU CN220251304U (en) | 2023-07-05 | 2023-07-05 | General vibration test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321749528.XU CN220251304U (en) | 2023-07-05 | 2023-07-05 | General vibration test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220251304U true CN220251304U (en) | 2023-12-26 |
Family
ID=89267054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321749528.XU Active CN220251304U (en) | 2023-07-05 | 2023-07-05 | General vibration test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220251304U (en) |
-
2023
- 2023-07-05 CN CN202321749528.XU patent/CN220251304U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |