CN113063676A - Fixing device for three-dimensional vibration test of irregular sample - Google Patents
Fixing device for three-dimensional vibration test of irregular sample Download PDFInfo
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- CN113063676A CN113063676A CN202110277129.7A CN202110277129A CN113063676A CN 113063676 A CN113063676 A CN 113063676A CN 202110277129 A CN202110277129 A CN 202110277129A CN 113063676 A CN113063676 A CN 113063676A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a fixing device for three-dimensional vibration testing of an irregular sample. The support structure mainly comprises a support structure and a rotating structure, wherein the two parts are connected through a support rod of the rotating structure penetrating through a connecting hole of the support structure and cannot be detached. The supporting structure comprises a fixed base, a transverse supporting ring and a vertical supporting ring, the rotating structure comprises a vertical rotating ring and a horizontal rotating table, fixed screw holes are formed in the transverse supporting ring, the vertical rotating ring and the horizontal rotating table, and the whole fixing device is rigidly connected by using fixing nuts. During vibration test, the device is fixed on a vibration table, the irregular sample is fixed on a horizontal rotating table surface of the fixing device, the three-dimensional vibration test of the irregular sample can be realized only by adjusting the direction of the horizontal rotating table surface, a clamp is not required to be disassembled, the influence of human on the performance of the sample in the test is reduced, and the test efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of vibration testing, and particularly relates to a fixing device for three-dimensional vibration testing of an irregular sample.
Background
The vibration test is an important project in an environment test, and aims to realize the purposes of enabling a sample to bear vibration by a simulation method, testing the working reliability of the sample in a vibration environment, estimating the service life of a product, finding weak links in design work, finding an improvement direction, improving the design of the product and improving the vibration environment resistance of the product.
However, most of the existing vibration test fixtures cannot meet the requirements of fixing irregular samples, and meanwhile, angle adjustment cannot be flexibly carried out, and especially for some independent functional modules and even irregular samples such as circuit boards, the common vibration test fixtures cannot complete vertical, transverse and longitudinal three-dimensional vibration tests.
Therefore, it is an urgent need to solve the problem in the art to provide a three-dimensional vibration testing fixture that is convenient for adjusting vertical, horizontal and longitudinal angles and can effectively fix irregular samples.
Disclosure of Invention
The invention aims to provide a fixing device for three-dimensional vibration test of an irregular sample, which can complete three-dimensional vibration test without dismantling a clamp during vibration test and greatly improve test efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the fixing device for the three-dimensional vibration test of the irregular sample comprises a supporting structure and a rotating structure, wherein a supporting rod of the rotating structure penetrates through a connecting hole of the supporting structure to realize the connection of the rotating structure and the supporting structure, and the rotating structure can be vertically and transversely arranged in the supporting structure.
The supporting structure on half include horizontal support ring and vertical support ring, two support rings are the semicircle that the radius equals, look sideways at and are the L type, two support ring contained angles are 90 degrees.
The rotary structure comprises a vertical rotary ring and a horizontal rotary table, the horizontal rotary table is in an I shape in side view, the vertical rotary ring is embedded in a groove on the side surface of the horizontal rotary table and is supported by the supporting rod, and the horizontal rotary table can generate rotary motion relative to the vertical rotary ring.
Furthermore, the bottom of the supporting structure is a fixed base, and two positioning linear grooves are formed in the bottom of the supporting structure and used for being fixed with the vibration test board.
Furthermore, the transverse support ring is provided with a left transverse fixing thread through hole and a right transverse fixing thread through hole, and the radian between the transverse fixing thread through holes and the nearest connecting hole is 45 degrees. The vertical support ring is provided with a left vertical fixing thread through hole and a right vertical fixing thread through hole, and the radian of the vertical fixing thread through holes and the radian of the nearest connecting hole are 45 degrees.
Furthermore, the horizontal rotating platform plane be provided with a plurality of locating holes, the locating hole is the matrix arrangement on horizontal rotating platform for fixed irregular sample.
Furthermore, the horizontal rotating platform side be provided with four fixed screw hole, adjacent two interarea radians is 90 degrees. Four fixing thread through holes are formed in the vertical rotating ring, and the radian between each fixing thread through hole and the nearest support rod is 45 degrees.
Furthermore, the diameters of the transverse fixing thread through hole, the fixing thread hole and the fixing thread through hole are the same. The three can be screwed into the same fixing screw rod at the same time.
Furthermore, the diameters of the vertical fixing thread through hole, the fixing thread hole and the fixing thread through hole are the same. The three can be screwed into the same fixing screw rod at the same time.
The invention has the beneficial effects that:
1. in the vibration test process, the irregular sample to be tested is fixed on the horizontal rotating table, and the three-dimensional vibration test of the irregular sample can be realized only by adjusting the direction of the horizontal rotating table.
2. Vibration test of different directions is realized through the direction of adjustment horizontal rotation platform, consequently need not all dismantle anchor clamps like conventional vibration test in every direction, adjusts the shaking table mesa even, improves test efficiency greatly.
Drawings
FIG. 1 is an isometric view of a three-dimensional vibration testing fixture for irregular samples;
FIG. 2 is a side view of a three-dimensional vibration testing fixture for irregular samples;
FIG. 3 is an isometric view of a vertically rotating ring;
the device comprises a support rod 1, a support rod 2, a connecting hole 3, a fixing base 4, a fixing linear groove 5, a transverse support ring 6, a vertical support ring 7, a transverse fixing thread through hole 8, a vertical fixing thread through hole 9, a vertical rotating ring 10, a horizontal rotating platform 11, a positioning hole 12, a fixing thread hole 13 and a fixing thread through hole.
Detailed Description
The invention is described in further detail below by way of example and with reference to the accompanying drawings.
As shown in fig. 1 to 3, the fixing device for three-dimensional vibration testing of an irregular sample in the present invention comprises a supporting structure and a rotating structure, wherein a supporting rod 1 of the rotating structure passes through a connecting hole 2 of the supporting structure to realize the connection between the rotating structure and the supporting structure, and the rotating structure and the supporting structure are not detachable.
The bottom of the supporting structure is a fixed base 3 and is provided with two positioning linear grooves 4.
The supporting structure on half include horizontal support ring 5 and vertical support ring 6, two support rings are the semicircle that the radius equals, look sideways at and are the L type, two support ring contained angles are 90 degrees.
The transverse support ring is provided with a left transverse fixing thread through hole and a right transverse fixing thread through hole 7, and the radian between the transverse fixing thread through holes and the nearest connecting hole 2 is 45 degrees. The vertical support ring is provided with a left vertical fixing thread through hole and a right vertical fixing thread through hole 8, and the radian of the vertical fixing thread through holes and the radian of the nearest connecting hole 2 are 45 degrees.
The rotating structure comprises a vertical rotating ring 9 and a horizontal rotating platform 10, the horizontal rotating platform 10 is in an I shape in side view, and the vertical rotating ring 9 is embedded in a groove on the side surface of the horizontal rotating platform.
The horizontal rotating platform 10 is provided with a plurality of positioning holes 11 on the plane, and the positioning holes 11 are arranged on the horizontal rotating platform in a matrix manner.
The horizontal rotating platform side be provided with four fixed screw hole 12, adjacent two interarea radians is 90 degrees. Four fixing thread through holes 13 are formed in the vertical rotating ring, and the radian between each fixing thread through hole 13 and the nearest support rod 1 is 45 degrees.
The diameters of the transverse fixing thread through hole 7, the fixing thread through hole 12 and the fixing thread through hole 13 are the same. The three can be screwed into the same fixing screw rod at the same time.
The vertical fixing thread through hole 8, the fixing thread through hole 12 and the fixing thread through hole 13 have the same diameter. The three can be screwed into the same fixing screw rod at the same time.
The specific test process is as follows:
step 1: before the test, the whole fixing device is fixed on a vibration table by using screws matched with a common clamp.
Step 2: the vertical rotating ring 9 and the horizontal rotating platform 10 are adjusted to be flush with the vertical support ring 6, two fixing screw rods are screwed into the vertical fixing thread through holes 8, the fixing thread through holes 13 and the fixing thread holes 12 respectively from two sides, and the support rod 1 is screwed into the fixing nut, so that rigid connection of the vertical rotating ring, the horizontal rotating platform and the support structure is realized.
And 3, step 3: the irregular sample was fixed on the horizontal rotation stage using a common jig. And after the fixation is confirmed, starting the vibration table to perform a vertical vibration test.
And 4, step 4: stopping the vertical vibration test, loosening the fixing screw of the support rod, adjusting the vertical rotating ring 9 and the horizontal rotating platform 10 to be flush with the horizontal support ring 5, and screwing two fixing nuts into the horizontal fixing thread through hole 7, the fixing thread through hole 13 and the fixing thread hole 12 from two sides respectively. The support rod is screwed into the fixing nut, so that rigid connection of the vertical rotating ring, the horizontal rotating table and the support structure is realized. And starting a vibration table to perform a transverse vibration test.
And 5, step 5: stopping the transverse vibration test, horizontally rotating the horizontal rotating platform 10 by 90 degrees at will, screwing the two fixing screw rods into the transverse fixing thread through holes 7, the fixing thread through holes 13 and the fixing thread holes 12 from two sides respectively, and starting the vibrating platform to perform the longitudinal vibration test.
And 6, step 6: stopping the longitudinal vibration test, loosening the fixing nut of the support rod, repeating the step 2, and finally detaching the sample for function inspection.
The invention provides a fixing device for three-dimensional vibration test of an irregular sample, which can complete three-dimensional vibration test without dismantling a clamp during vibration test, and greatly improve test efficiency.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a three-dimensional vibration test fixing device of irregular sample, includes bearing structure and revolution mechanic, its characterized in that: the support rod (1) of the rotating structure penetrates through the connecting hole (2) of the support structure to realize the connection of the rotating structure and the support structure, and the rotating structure can be vertically and transversely arranged in the support structure;
the upper half part of the supporting structure comprises a transverse supporting ring (5) and a vertical supporting ring (6), the two supporting rings are semi-circles with equal radiuses, the side view of the two supporting rings is L-shaped, and the included angle between the two supporting rings is 90 degrees;
the rotating structure comprises a vertical rotating ring (9) and a horizontal rotating table (10), the horizontal rotating table (10) is in an I shape in side view, the vertical rotating ring (9) is embedded in a groove in the side face of the horizontal rotating table (10) and is supported by the supporting rod (1), and the horizontal rotating table (10) can rotate relative to the vertical rotating ring (9).
2. The three-dimensional vibration test fixing device for the irregular sample, according to claim 1, is characterized in that: the bottom of the supporting structure is provided with a fixed base (3) and two fixed linear grooves (4) for being fixed with the vibration test board.
3. The three-dimensional vibration test fixing device for the irregular sample, according to claim 1, is characterized in that: the transverse support ring is provided with a left transverse fixing thread through hole and a right transverse fixing thread through hole (7), and the radian between the transverse fixing thread through holes and the nearest connecting hole (2) is 45 degrees; the vertical support ring is provided with a left vertical fixing thread through hole and a right vertical fixing thread through hole (8), and the radian of the vertical fixing thread through holes (8) and the radian of the nearest connecting hole (2) are 45 degrees.
4. The three-dimensional vibration test fixing device for the irregular sample, according to claim 1, is characterized in that: the horizontal rotating table (10) is provided with a plurality of positioning holes (11) on the plane, and the positioning holes (11) are arranged on the horizontal rotating table in a matrix mode and used for fixing irregular samples.
5. The three-dimensional vibration test fixing device for the irregular sample according to claim 3, wherein: the side surface of the horizontal rotating platform is provided with four fixed threaded holes (12), and the radian between two adjacent holes is 90 degrees; four fixing thread through holes (13) are formed in the vertical rotating ring, and the radian between each fixing thread through hole and the nearest support rod (1) is 45 degrees.
6. The three-dimensional vibration test fixing device for the irregular sample according to claim 5, wherein: the diameters of the transverse fixing thread through hole (7), the fixing thread hole (12) and the fixing thread through hole (13) are the same; the three can be screwed into the same fixing screw rod at the same time.
7. The three-dimensional vibration test fixing device for the irregular sample according to claim 5, wherein: the vertical fixing thread through hole (8), the fixing thread hole (12) and the fixing thread through hole (13) have the same diameter; the three can be screwed into the same fixing screw rod at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277129.7A CN113063676B (en) | 2021-03-15 | 2021-03-15 | Fixing device for three-dimensional vibration test of irregular sample |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277129.7A CN113063676B (en) | 2021-03-15 | 2021-03-15 | Fixing device for three-dimensional vibration test of irregular sample |
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| CN113063676A true CN113063676A (en) | 2021-07-02 |
| CN113063676B CN113063676B (en) | 2022-08-16 |
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| CN202110277129.7A Active CN113063676B (en) | 2021-03-15 | 2021-03-15 | Fixing device for three-dimensional vibration test of irregular sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397078A (en) * | 2021-12-16 | 2022-04-26 | 苏州长菱测试技术有限公司 | Vibration table surface steering device |
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| CN113063676B (en) | 2022-08-16 |
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