CN103639939A - Fixture for metal beam vibration detection - Google Patents
Fixture for metal beam vibration detection Download PDFInfo
- Publication number
- CN103639939A CN103639939A CN201310698071.9A CN201310698071A CN103639939A CN 103639939 A CN103639939 A CN 103639939A CN 201310698071 A CN201310698071 A CN 201310698071A CN 103639939 A CN103639939 A CN 103639939A
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- CN
- China
- Prior art keywords
- fixture
- beams
- base
- riser
- metal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- 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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a fixture for metal beam vibration detection. The fixture comprises a base, a vertical plate and a baffle, wherein the base is horizontally arranged on a vibration table, the vertical plate is vertically arranged on the base, a metal beam is vertically arranged between the vertical plate and the baffle, and one end of the metal beam is contacted with the upper surface of the base. The fixture is improved in that a stiffening plate perpendicular to the base and the vertical plate respectively is arranged at an included angle formed by the base and the vertical plate. Compared with the prior art, the fixture for metal beam vibration detection has the advantages that the clamping force of the fixture to the metal beam is increased, the resonance of the vibration table and the fixture is avoided, and the motion of the vibration table can be transmitted to the metal beam more effectively.
Description
Technical field
The present invention relates to a kind of fixture, specifically relate to a kind of fixture for beams of metal vibration detection.
Background technology
Vibration test is the various Environmental Virbration Influences that artificial product suffers from transportation, installation and use environment, this test is the various Environmental Virbration Influences that analog equipment suffers under transportation, installation and use environment, is used for determining the ability whether product can bear various ambient vibrations.Vibration test is that evaluation components and parts, parts and complete machine are in the transportation of expection and the resistivity in environment for use.
One logical detection thought and the most often used mode of vibration can be divided into two kinds of sinusoidal vibration and random vibrations.Sinusoidal vibration is the test method often adopting in laboratory, the vibration and product structure resonance frequency analysis and the resident master of being verified as of resonance point that with simulation rotation, pulsation, concussion (being occurred on boats and ships, aircraft, vehicle, spacecraft), are produced, it is divided into again frequency sweep vibration and determines two kinds of frequency vibrations, and its harsh degree depends on frequency range, amplitude, duration of test runs.Random vibration is with analog equipment globality structure shock resistance assessment and transport environment under packed state, and its harsh degree depends on frequency range, GRMS, duration of test runs and axially.
At present various various for the fixture form of beams of metal vibration detection, but the but problem of ubiquity the following aspects:
1, clamp structure or design parameter unreasonable (as rigidity and quality etc.), cause beams of metal-chucking appliance system in trial stretch, to occur the resonance causing because of fixture mismate.
2, chucking power is large not, and in testing process, beams of metal and fixture junction easily occur loosening.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of fixture for beams of metal vibration detection, improve the chucking power of fixture to beams of metal, avoided vibration table and fixture to produce resonance, be conducive to the motion of vibration table more effectively to pass to beams of metal.
The object of the invention is to adopt following technical proposals to realize:
A kind of fixture for beams of metal vibration detection provided by the invention, described fixture comprises base, riser and baffle plate, described base is horizontally set on vibration table, described riser is vertically arranged on base, beams of metal is vertically set between described riser and baffle plate, one end of described beams of metal contacts with the upper surface of base, and its improvements are: described base is provided with the angle of riser the stiffener of distinguishing vertical described base and riser.
Wherein, described stiffener and base and riser are for being welded to connect, and the contact angle of described stiffener and base and riser is provided with circular arc perforate.
Wherein, described circular arc perforate is quadrant hole.
Wherein, described base top edge adopts chamfered; Described base edge is equidistantly vertically provided with eight countersunk head unthreaded holes.
Wherein, described vibration table is provided with the screw corresponding with described base.
Wherein, described base and vibration table are connected by screw; Described screw is provided with elastomeric pad.
Wherein, described riser is rectangle, and for being welded to connect, four jiaos of described risers are provided with four countersunk head unthreaded holes with described base.
Wherein, described baffle plate is provided with the unthreaded hole corresponding with described riser, and described baffle plate and riser are bolted.
Wherein, the contact-making surface of described riser and baffle plate and described beams of metal is that annular knurl is processed.
Wherein, described base, stiffener, riser and baffle plate all adopt aluminum material, and its surface adopts bead.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, the parts in fixture all adopt the aluminum material that density is less, and under equal conditions gross mass is lighter.
2, it is better that stiffener makes the connection integrity of riser and base.
3, adopt eight screws that base is fixed on vibration table, and install elastomeric pad additional on screw, make base more tight with being connected of vibration table, improved the rigidity of structural entity.
4, reducing of quality and increasing of rigidity, make fixture itself have higher intrinsic frequency, avoided vibration table and fixture to produce resonance, is conducive to the motion of vibration table more effectively to pass to beams of metal.
5, the contact-making surface of riser and baffle plate and beams of metal all adopts annular knurl to process, and has increased its surperficial roughness, thereby has increased the chucking power to beams of metal.
6, utilize securing member that beam is fixed between baffle plate and riser, strengthened the chucking power of fixture to beams of metal base plate, prevent that it from occurring to become flexible and impact detection effect in process of the test.
7, on the angle that stiffener contacts with base and riser, have a quadrant hole, the deflection when controlling the welding of stiffener and riser, base, guarantees the perpendicularity between riser and base upper surface.
8, compact conformation, surface is through bead, anticorrosion antiwear, good looking appearance.
9, simple installation, greatly increases work efficiency.
Accompanying drawing explanation
Fig. 1 is: the axle that waits of the fixture for beams of metal vibration detection provided by the invention is surveyed view;
Fig. 2 is: the front view of the fixture for beams of metal vibration detection provided by the invention;
Fig. 3 is: the top view of the fixture for beams of metal vibration detection provided by the invention;
Wherein: 1, base; 2, screw; 3, stiffener; 4, fastening bolt; 5, riser; 6, nut; 7, baffle plate.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present embodiment is example for the fixture of beams of metal vibration detection, and as shown in Figure 1 to Figure 3, the fixture for beams of metal vibration detection that the embodiment of the present invention provides comprises: base 1, screw 2, stiffener 3, fastening bolt 4, riser 5, nut 6, baffle plate 7.
Riser 5 is vertically welded on base 1, stiffener 3 is connected by welding manner with riser 5 with base 1 respectively, on the contact angle of stiffener 3 and base 1 and riser 5, have a quadrant hole, deflection while welding with riser 5 and base 1 to control stiffener 3, thereby the perpendicularity of assurance riser 5 and base 1 upper surface; Stiffener 3 can increase the rigidity of fixture, improves the dynamic characteristics of fixture.
The operating procedure of fixture clamping beams of metal is as follows:
1, by screw 2, base 1 is fixed on vibration table;
2, beams of metal is arranged in the gap between riser 5 and baffle plate 7, one end of beams of metal contacts with the upper surface of base 1;
3, the position of regulating fender 7, tights a bolt 4 and nut 6, and beams of metal is fixed between riser 5 and baffle plate 7.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. the fixture for beams of metal vibration detection, described fixture comprises base, riser and baffle plate, described base is horizontally set on vibration table, described riser is vertically arranged on base, beams of metal is vertically set between described riser and baffle plate, one end of described beams of metal contacts with the upper surface of base, it is characterized in that: described base is provided with the angle of riser the stiffener of distinguishing vertical described base and riser.
2. the fixture for beams of metal vibration detection as claimed in claim 1, is characterized in that, described stiffener and base and riser are for being welded to connect, and the contact angle of described stiffener and base and riser is provided with circular arc perforate.
3. the fixture for beams of metal vibration detection as claimed in claim 2, is characterized in that, described circular arc perforate is quadrant hole.
4. the fixture for beams of metal vibration detection as claimed in claim 1, is characterized in that, described base top edge adopts chamfered; Described base edge is equidistantly vertically provided with eight countersunk head unthreaded holes.
5. the fixture for beams of metal vibration detection as claimed in claim 4, is characterized in that, described vibration table is provided with the screw corresponding with described base.
6. the fixture for beams of metal vibration detection as claimed in claim 5, is characterized in that, described base and vibration table are connected by screw; Described screw is provided with elastomeric pad.
7. the fixture for beams of metal vibration detection as claimed in claim 1, is characterized in that, described riser is rectangle, and for being welded to connect, four jiaos of described risers are provided with four countersunk head unthreaded holes with described base.
8. the fixture for beams of metal vibration detection as claimed in claim 7, is characterized in that, described baffle plate is provided with the unthreaded hole corresponding with described riser, and described baffle plate and riser are bolted.
9. the fixture for beams of metal vibration detection as claimed in claim 1, is characterized in that, the contact-making surface of described riser and baffle plate and described beams of metal adopts annular knurl to process.
10. the fixture for beams of metal vibration detection as claimed in claim 1, is characterized in that, described base, stiffener, riser and baffle plate all adopt aluminum material, and its surface adopts bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698071.9A CN103639939B (en) | 2013-12-18 | 2013-12-18 | A kind of fixture for beams of metal vibration detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698071.9A CN103639939B (en) | 2013-12-18 | 2013-12-18 | A kind of fixture for beams of metal vibration detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103639939A true CN103639939A (en) | 2014-03-19 |
| CN103639939B CN103639939B (en) | 2016-08-17 |
Family
ID=50245295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310698071.9A Active CN103639939B (en) | 2013-12-18 | 2013-12-18 | A kind of fixture for beams of metal vibration detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639939B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1504153A (en) * | 1974-06-11 | 1978-03-15 | Schenck Ag Carl | Testing machine designed to act horizontally on specimens to be tested |
| US5156051A (en) * | 1989-06-07 | 1992-10-20 | M/Rad Corporation | Vibration test fixture |
| CN201233303Y (en) * | 2008-08-07 | 2009-05-06 | 贵州航天凯天科技有限责任公司 | Random vibration test cramp |
| CN103033326A (en) * | 2011-09-30 | 2013-04-10 | 中航商用航空发动机有限责任公司 | Flat plate vibration test clamp and installation method and calibration method thereof |
-
2013
- 2013-12-18 CN CN201310698071.9A patent/CN103639939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1504153A (en) * | 1974-06-11 | 1978-03-15 | Schenck Ag Carl | Testing machine designed to act horizontally on specimens to be tested |
| US5156051A (en) * | 1989-06-07 | 1992-10-20 | M/Rad Corporation | Vibration test fixture |
| CN201233303Y (en) * | 2008-08-07 | 2009-05-06 | 贵州航天凯天科技有限责任公司 | Random vibration test cramp |
| CN103033326A (en) * | 2011-09-30 | 2013-04-10 | 中航商用航空发动机有限责任公司 | Flat plate vibration test clamp and installation method and calibration method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 单林庆: "某振动夹具的设计及改进", 《科技资讯》, no. 23, 20 August 2011 (2011-08-20), pages 85 - 86 * |
| 戴起勋: "《机械零件结构工艺性300例》", 31 October 2003, article "焊接结构工艺性设计", pages: 37 * |
| 李科源等: "某武器放线装置振动夹具的设计", 《装备环境工程》, vol. 4, no. 1, 28 February 2007 (2007-02-28), pages 67 - 70 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103639939B (en) | 2016-08-17 |
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