CN111351624A - Vibration test fixture structure - Google Patents
Vibration test fixture structure Download PDFInfo
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- CN111351624A CN111351624A CN202010211974.XA CN202010211974A CN111351624A CN 111351624 A CN111351624 A CN 111351624A CN 202010211974 A CN202010211974 A CN 202010211974A CN 111351624 A CN111351624 A CN 111351624A
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- vibration test
- pressing
- product
- test fixture
- strip
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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
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a vibration test fixture structure which comprises a fixture base, wherein the fixture base is arranged in a hollow mode, a transversely arranged middle partition plate is arranged in the fixture base, jacks which are uniformly distributed are formed in the middle partition plate, a boss is fixedly connected to the upper end face of the fixture base, a plurality of groups of pressing clamping blocks which are arranged in a rectangular array mode are movably mounted at the upper end of the boss, and the side faces of the pressing clamping blocks are attached to one another. The invention relates to a clamp, in particular to a vibration test clamp structure, and belongs to the technical field of vibration tests. According to the invention, the pressing and moving clamping blocks distributed in an array mode are arranged at the lower end of the product, when the product is placed above, the pressing and moving clamping blocks are stressed to move downwards to form the groove matched with the product, the product is limited in parallel, and then the product is clamped by using the clamp, so that the clamping stability of the clamp is improved, and the detection effect is improved.
Description
Technical Field
The invention relates to a clamp, in particular to a vibration test clamp structure, and belongs to the technical field of vibration tests.
Background
Vibration measurements in ambient vibration testing (VIB 07) include two types: firstly, measuring the vibration of an object causing noise radiation; and secondly, measuring the environmental vibration. The most commonly used vibration modes can be divided into sinusoidal vibration (Sine vibration) and Random vibration (Random vibration).
The vibration test is used for simulating various vibration environmental influences of the product in the transportation, installation and use environments and determining whether the product can bear various environmental vibrations.
The most commonly used vibration modes can be divided into sinusoidal vibration and random vibration, the sinusoidal vibration is a test method frequently adopted in laboratories and mainly used for simulating vibration generated by rotation, pulsation and oscillation (in ships, airplanes and vehicles) and analyzing resonance frequency and verifying residence of resonance points of a product structure, the sinusoidal vibration is divided into sweep vibration and fixed-frequency vibration, the severity degree of the sweep vibration depends on frequency range, amplitude value and test duration, and the random vibration is evaluated by simulating the shock resistance of the product integral structure and a transportation environment in a packaging state, and the severity degree of the random vibration depends on the frequency range, GRMS, test duration and axial direction.
Need use anchor clamps to carry out the centre gripping to the product among the vibration test, current anchor clamps can produce gradually not hard up to the centre gripping of product in the testing process, and the centre gripping effect is not good, and the product produces parallel displacement easily at the vibration in-process, influences the detection effect.
Disclosure of Invention
The present invention is directed to a vibration test fixture structure, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a vibration test fixture structure comprises a fixture base, wherein the fixture base is arranged in a hollow manner, a transversely-arranged middle partition plate is arranged in the fixture base, jacks which are uniformly distributed are formed in the middle partition plate, a boss is fixedly connected to the upper end face of the fixture base, a plurality of groups of pressing clamping blocks which are arranged in a rectangular array manner are movably mounted at the upper end of the boss, the side faces of each pressing clamping block are attached to each other, each pressing clamping block comprises a strip-shaped block, the lower end of each strip-shaped block penetrates through the boss and the upper end face of the fixture base and is fixedly connected with an inserting rod, the lower end of each inserting rod penetrates through the jacks and is fixedly connected with a baffle, a spring arranged between each strip-shaped block and the middle partition plate is sleeved on each inserting rod, the side end faces of the strip-shaped blocks arranged on each adjacent pressing clamping block are attached to each other, fixtures are arranged on, the fixture comprises an air cylinder and a pressing plate, the air cylinder is fixed on the upper end face of the fixture base through an air cylinder support, the pressing plate is fixedly connected to the output end of the air cylinder, and the output end of the air cylinder presses the upper portion of the movable clamping block.
As a preferred technical scheme of the invention, the upper end of the cylinder bracket is fixedly connected with a transversely arranged sleeve, the cylinder is fixed at one end of the sleeve, and the output end of the cylinder penetrates through the sleeve and is fixedly connected with the pressing plate.
As a preferred technical scheme of the invention, the output end of the air cylinder is sleeved with a compression spring, and two ends of the compression spring are respectively abutted against the end head of the sleeve and the end face of the pressing plate.
As a preferable technical scheme of the invention, an anti-slip mat is fixedly attached to the end face of the pressure plate, which is far away from the air cylinder.
As a preferable technical scheme of the invention, when the springs are in a relaxed state, the upper end surfaces of the multiple groups of strip-shaped blocks are positioned on the same horizontal plane.
As a preferable technical scheme of the invention, the inserted bar is matched with the insertion hole.
As a preferred technical scheme of the invention, the cross section of the strip-shaped block is square, two sliding grooves and two sliding blocks are arranged on four side surfaces of the strip-shaped block, and the sliding blocks and the sliding grooves are respectively arranged on opposite side surfaces of the strip-shaped block.
As a preferred technical scheme of the invention, the sliding block is in clamping fit with the sliding groove.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the pressing and moving clamping blocks distributed in an array mode are arranged at the lower end of the product, when the product is placed above, the pressing and moving clamping blocks are stressed to move downwards to form the groove matched with the product, the product is limited in parallel, and then the product is clamped by using the clamp, so that the clamping stability of the clamp is improved, and the detection effect is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural view of a pressing clamp block according to the present invention;
FIG. 3 is a schematic structural diagram of a bar block according to the present invention.
In the figure: 1. a clamp; 101. a cylinder; 102. a cylinder support; 103. a sleeve; 104. a compression spring; 105. pressing a plate; 2. a non-slip mat; 3. pressing the clamping block; 301. a bar-shaped block; 3011. a chute; 3012. a slider; 302. a spring; 303. inserting a rod; 304. a baffle plate; 4. a boss; 5. a clamp base; 501. a middle partition plate; 502. and (4) inserting the jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a vibration test fixture structure, which comprises a fixture base 5, wherein the fixture base 5 is hollow, a middle partition plate 501 transversely arranged is arranged inside the fixture base 5, the middle partition plate 501 is provided with evenly distributed insertion holes 502, the upper end surface of the fixture base 5 is fixedly connected with a boss 4, the upper end of the boss 4 is movably provided with a plurality of groups of pressing clamping blocks 3 arranged in a rectangular array, the side surfaces of each pressing clamping block 3 are attached to each other, each pressing clamping block 3 comprises a bar-shaped block 301, the lower end of the bar-shaped block 301 penetrates through the boss 4 and the upper end surface of the fixture base 5 and is fixedly connected with an insertion rod 303, the lower end of the insertion rod 303 penetrates through the insertion holes 502 and is fixedly connected with a baffle 304, the insertion rod 303 is sleeved with a spring 302 arranged between the bar-shaped block 301 and the middle partition plate 501, the side end surfaces of the bar-shaped block 301 arranged on each adjacent pressing, and two anchor clamps 1 use boss 4 to set up as the axial symmetry, and anchor clamps 1 includes cylinder 101 and clamp plate 105, and cylinder 101 passes through cylinder support 102 to be fixed at anchor clamps base 5 up end, and clamp plate 105 fixed connection is at the output of cylinder 101, and the output of cylinder 101 moves the joint piece 3 top towards the pressure. The two fixtures 1 are convenient to clamp the product, and the distance between the fixtures 1 is determined according to the product
Wherein, the horizontal sleeve pipe 103 that sets up of cylinder support 102 upper end fixedly connected with, cylinder 101 is fixed in sleeve pipe 103 one end, and cylinder 101 output runs through sleeve pipe 103 and clamp plate 105 fixed connection, compression spring 104 has been cup jointed to cylinder 101 output, compression spring 104 both ends are supported respectively on sleeve pipe 103 end and clamp plate 105 terminal surface, when not centre gripping product, cylinder 101 output contracts, compression spring 104 is in compression state, during the centre gripping product, compression spring 104 assists clamp plate 105 centre gripping product, stable effect is good, the centre gripping is stable.
The anti-slip pad 2 is fixedly attached to the end face, away from the air cylinder 101, of the pressing plate 105, so that slipping during clamping is prevented.
When the springs 302 are in a relaxed state, the upper end faces of the plurality of groups of strip-shaped blocks 301 are positioned on the same horizontal plane, so that the products can be conveniently placed at the upper ends of the pressing clamping blocks 3 arranged in a rectangular array.
Wherein, the inserted bar 303 is adapted to the jack 502, has the same diameter and is stably inserted.
The cross section of the strip-shaped block 301 is square, two sliding grooves 3011 and two sliding blocks 3012 are arranged on four side faces of the strip-shaped block 301, the sliding blocks 3012 and the sliding grooves 3011 are respectively arranged on the opposite side faces of the strip-shaped block 301, the sliding blocks 3012 are in clamping adaptation with the sliding grooves 3011, a plurality of groups of pressing and clamping blocks 3 arranged in an array are arranged, the arrangement direction of each pressing and clamping block 3 is the same, the sliding blocks 3012 at the side ends of the adjacent strip-shaped blocks 301 are clamped in the sliding grooves 3011, as shown in fig. 3, the sliding blocks 3012 and the sliding grooves 3011 are respectively provided with two sliding blocks 3011, and the two sliding grooves 3011.
Wherein a controller for controlling the cylinder 101 is also included.
The working principle of the present invention will be explained in detail below: during the use, fix anchor clamps base 5 on vibration test platform through the mounting, place the product in the multiunit that is in array distribution and press 3 upper ends of joint piece, the product is placed the back, bar piece 301 is pressed, it pegs graft downwards from jack 502 to drive inserted bar 303, baffle 304 top is in the inside bottom of anchor clamps base 5, the product will be in the pressing joint piece 3 of array form and push down, the pressing joint piece 3 pressfitting that the array was arranged forms the draw-in groove with product looks adaptation, the product is spacing in parallel in pressing joint piece 3 upper end, it carries out the centre gripping to drive clamp plate 105 through cylinder 101 to the product again, fix the product, fixed effect is stable, after finishing detecting, drive clamp plate 105 through cylinder 101 and loosen the product, take off the product after, the pressing joint piece 3 that presses resets through spring 302.
In summary, according to the vibration test fixture structure provided by the invention, the pressing clamping blocks 3 distributed in an array manner are arranged at the lower end of the product, when the product is placed above, the pressing clamping blocks 3 are forced to move downwards to form grooves matched with the product, so that the product is limited in parallel, and then the fixture 1 is used for clamping the product, so that the stability of clamping of the fixture is improved, and the detection effect is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A vibration test fixture structure comprises a fixture base (5) and is characterized in that the fixture base (5) is arranged in a hollow mode, a middle partition plate (501) is transversely arranged in the fixture base (5), jacks (502) which are uniformly distributed are formed in the middle partition plate (501), a boss (4) is fixedly connected to the upper end face of the fixture base (5), a plurality of groups of pressing clamping blocks (3) which are arranged in a rectangular array mode are movably mounted at the upper end of the boss (4), the side faces of the pressing clamping blocks (3) are attached to each other, each pressing clamping block (3) comprises a strip-shaped block (301), an inserting rod (303) is fixedly connected to the lower end of each strip-shaped block (301) penetrating through the boss (4) and the upper end face of the fixture base (5), a baffle (304) is fixedly connected to the lower end of each inserting rod (303) penetrating through the jacks (502), and a spring (302) arranged between the strip-shaped block (301) and the middle partition plate (501) is sleeved on each inserting, every is adjacent it is attached each other to press bar-shaped piece (301) side end face that joint piece (3) was equipped with, boss (4) both sides all are equipped with anchor clamps (1), and two anchor clamps (1) use boss (4) to set up as the axial symmetry, anchor clamps (1) include cylinder (101) and clamp plate (105), cylinder (101) are fixed at anchor clamps base (5) up end through cylinder support (102), clamp plate (105) fixed connection is at the output of cylinder (101), just the output of cylinder (101) is towards pressing joint piece (3) top.
2. A vibration test fixture structure according to claim 1, wherein: the upper end of the air cylinder support (102) is fixedly connected with a transversely arranged sleeve (103), the air cylinder (101) is fixed at one end of the sleeve (103), and the output end of the air cylinder (101) penetrates through the sleeve (103) and is fixedly connected with the pressing plate (105).
3. A vibration test fixture structure according to claim 2, wherein: the output end of the air cylinder (101) is sleeved with a compression spring (104), and two ends of the compression spring (104) respectively abut against the end of the sleeve (103) and the end face of the pressing plate (105).
4. A vibration test fixture structure according to claim 1, wherein: and an anti-slip pad (2) is fixedly attached to the end face, deviating from the air cylinder (101), of the pressure plate (105).
5. A vibration test fixture structure according to claim 1, wherein: when the springs (302) are in a relaxed state, the upper end surfaces of the plurality of groups of the bar-shaped blocks (301) are positioned on the same horizontal plane.
6. A vibration test fixture structure according to claim 1, wherein: the insert rod (303) is matched with the insert hole (502).
7. A vibration test fixture structure according to claim 1, wherein: the cross section of the strip-shaped block (301) is square, two sliding grooves (3011) and two sliding blocks (3012) are arranged on four side faces of the strip-shaped block (301), and the sliding blocks (3012) and the sliding grooves (3011) are respectively arranged on the opposite side faces of the strip-shaped block (301).
8. A vibration test fixture structure according to claim 7, wherein: the sliding block (3012) is in clamping fit with the sliding groove (3011).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211974.XA CN111351624A (en) | 2020-03-24 | 2020-03-24 | Vibration test fixture structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211974.XA CN111351624A (en) | 2020-03-24 | 2020-03-24 | Vibration test fixture structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111351624A true CN111351624A (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010211974.XA Pending CN111351624A (en) | 2020-03-24 | 2020-03-24 | Vibration test fixture structure |
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| CN (1) | CN111351624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776651A (en) * | 2021-09-10 | 2021-12-10 | 瑞镭激光技术（深圳）有限公司 | Vibrating mirror swing motor natural frequency detection device |
-
2020
- 2020-03-24 CN CN202010211974.XA patent/CN111351624A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776651A (en) * | 2021-09-10 | 2021-12-10 | 瑞镭激光技术（深圳）有限公司 | Vibrating mirror swing motor natural frequency detection device |
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