CN205067034U - General switching vibration test anchor clamps of electric vibration table - Google Patents
General switching vibration test anchor clamps of electric vibration table Download PDFInfo
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- CN205067034U CN205067034U CN201520433194.4U CN201520433194U CN205067034U CN 205067034 U CN205067034 U CN 205067034U CN 201520433194 U CN201520433194 U CN 201520433194U CN 205067034 U CN205067034 U CN 205067034U
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Abstract
The utility model belongs to the technical field of the test of vibration ring border, concretely relates to general switching vibration test anchor clamps of electric vibration table. The utility model discloses a general switching vibration test anchor clamps of electric vibration table, it includes mounting panel and back structure, be provided with 4 T -slots on the front of mounting panel for experimental product with awaiting measuring is connected, 4 still be provided with the mounting hole on the T -slot still inlaying on the surface of mounting panel has M12 steel bushing and M20 steel bushing. The utility model provides an otherness of the appearance of vibration test product, mounting means big, lead to the unable normal problem with vibration platform installation of a bit experimental product, a series of vibration test piece vibration test are accepted in being connected between the vibration test product that can realize different appearances, mounting means and the shaking platform, have certain commonality, and anchor clamps first -order frequency is higher, and it is wide to be suitable for the vibration test spectral range, can effectively reduce electric vibration table output simultaneously, has strong practicality.
Description
Technical field
The invention belongs to vibration environment technical field of measurement and test, be specifically related to the general switching vibration test fixture of a kind of electric vibration table.
Background technology
In today of economy, technology high-speed development, the quality of product more and more obtains the attention of people, and people pay attention to the environmental reliability problem of product more.Vibration mechanics environment is the aircraft such as rocket, guided missile, aircraft; The products such as wind power equipment, rail-based conveyor system, electronic product under arms or the mechanical environment the most often run in use procedure.
By vibration rig, vibration environment load is applied to testpieces, fully expose instrument and equipment or the defect of product in dynamic environmental test, determine their load-bearing capacitys to vibration environment.Only have through vibration environment test, intactly could examine the reliability of product structure and the adaptability for vibration environment, vibration test is the important component part of examination production reliability test.
In vibration environment test test process, the otherness such as profile, mounting means of vibration test product is comparatively large, if do not use switching fixture, test specimen just cannot carry out normal mounting with vibration stage body, then cannot carry out follow-up vibration test.
Summary of the invention
The technical issues that need to address of the present invention are: the profile of vibration test product, the otherness of mounting means are large, cause some test products cannot normally and the shaking platform problem of installing.
Technical scheme of the present invention is as described below:
The general switching vibration test fixture of a kind of electric vibration table, it comprises installing plate and back structures; Described installing plate profile is circular dull and stereotyped, and centered by the center of circle of installing plate, through-thickness offers lightening hole, and for weight reduction, described lightening hole is manhole, and extends to back structures; The front of installing plate is provided with 4 T-slots, for connecting with test products to be measured; 4 described T-slots are also provided with mounting hole, for realizing the connection of test fixture and electric vibration table main body; The surface of described installing plate is also inlaid with M12 steel bushing and M20 steel bushing.
Preferably, the T-slot described in 4 is radially uniformly distributed on the surface of installing plate, forms " rice " font and arranges;
Preferably, described mounting hole is manhole, and runs through back structures, and T-slot described in every bar is provided with 6 mounting holes, with the central shaft of described lightening hole for axis of symmetry, described lightening hole symmetria bilateralis distribute; All mounting holes on the surface of the installation base in interior, in, outer three layers of distribution, and be arranged in, on outer three distribution circles, described three round common centers of circle of distribution;
Preferably, described M12 steel bushing is distributed on the surface of described installing plate as follows:
With arbitrary described T-slot place straight line for datum line, draw the parallel lines of this datum line equally spacedly in the both sides of datum line; Then be new datum line with another T-slot place vertical with selected T-slot at straight line, the parallel lines of this new datum line are drawn equally spacedly in the both sides of this datum line, the spacing drawn parallel lines for twice is identical, then can form several squares on the surface of the installation base, described M12 steel bushing is embedded in described foursquare summit place;
Preferably, described M20 steel bushing is distributed on the surface of described installing plate as follows: described M20 steel bushing is embedded in the edge of installing plate, in inside and outside two-layer distribution, and the common distribution circle of M20 steel bushing of all internal layers, all outer field M20 steel bushings are another distribution circle altogether, the concyclic heart of two distribution circles; With arbitrary described T-slot place straight line for datum line, with the intersection point of this datum line and described lightening hole central axis for rotation center turns clockwise, described M20 steel bushing is embedded in the point of intersection respectively at inside and outside distribution circle when datum line rotates to 11.25 °, 33.75 °, 56.25 °, 78.75 °, 101.25 °, 123.75 °, 146.25 ° and 168.75 °;
Preferably, described back structures is arranged at the back side of installing plate, and it has 8 identical reinforcements and 8 identical depressions; Described reinforcement is arranged at the projected position of described T-slot at the installing plate back side along the radial direction of installing plate, and described reinforcement cross section is in a thickness direction zhou duicheng tuxing, and reduces gradually along the thickness of the radial reinforcement from the inside to the outside of installing plate; Described depression is the cambered surface of symmetrical shape; Be provided with a depression between two adjacent reinforcements, the described axis of symmetry in two adjacent reinforcements cross section is in a thickness direction 45 °, angle;
Beneficial effect of the present invention is:
(1) fixture of the present invention can realize the connection between different profile, the vibration test product of mounting means and shaking platform, accepts a series of vibration test specimen vibration test, has certain versatility;
(2) fixture fundamental frequency is higher, is suitable for vibration test spectral range wide, can effectively reduce electric vibration table simultaneously and export, have stronger practicality.
Accompanying drawing explanation
Fig. 1 is the outside drawing of test fixture of the present invention;
Fig. 2 is the installing plate appearance schematic diagram of test fixture of the present invention;
Fig. 3 is the installing plate front elevation of test fixture of the present invention;
Fig. 4 is the back structures schematic diagram of test fixture of the present invention;
Fig. 5 is the side view of test fixture of the present invention;
Fig. 6 is the installment state figure of test fixture of the present invention and 16T shaking table stage body;
Fig. 7 is the installment state figure of test fixture of the present invention and 16T shaking table slide unit;
Wherein, 1-installing plate, 2-back structures, 11-T shape groove, 12-mounting hole, 13-M12 steel bushing, 14-M20 steel bushing, 21-reinforcement, 22-caves in.
Embodiment
Below in conjunction with drawings and Examples, the general switching vibration test fixture of a kind of electric vibration table of the present invention is described in detail.
16T electric vibration table main body is primarily of Chui Tai and slide unit composition, and the platform table top that hangs down and slide unit table top are distributed with M12 steel bushing, are connected with test products by steel bushing.
Because vibration test specimen connection dimension differs, all directly can not be connected by steel bushing, need design the general switching vibration test fixture of 16T electric vibration table, described vibration test fixture is a transition piece connected, be again a force transferring part, it should meet following requirement:
1, can realize hanging down with 16T electric vibration table the connection of platform M12 steel bushing, fixture upper surface possesses connecting hole or link slot simultaneously, can realize and the connection vibrating test specimen;
2, the connection with 16T electric vibration table slide unit M12 steel bushing can be realized;
3, fundamental frequency wants high, is greater than 450Hz, meets the requirement of different vibration test specimen vibration test spectral range, reduces 16T electric vibration table and export.
For ensureing that vibration test fixture fundamental frequency is as far as possible high, FEM (finite element) calculation optimal design being carried out on the basis of Experience Design, improving the first natural frequency of fixture by constantly changing switching fixture physical dimension and distribution of material.
Ensureing the using function of fixture and under meeting the prerequisite of fundamental frequency, adopting variable cross section design to reduce fixture quality as far as possible.
By analyzing the relation of each rank mode and clamp structure, the calculation optimization layout of the size at each position, reinforcement, mounting hole and T-slot, has summed up rational topology layout, has repeatedly carried out structure optimization until Pass Test requirement.
The general switching vibration test fixture of electric vibration table as shown in Figure 1, it comprises installing plate 1 and back structures 2.
As shown in Figures 2 and 3, its profile is circular dull and stereotyped to described installing plate 1, and centered by the center of circle of installing plate 1, through-thickness offers lightening hole, and for weight reduction, described lightening hole is manhole, and extends to back structures 2.The front of installing plate 1 is provided with 4 T-slots 11, for connecting with test products to be measured.Article 4, the T-slot 11 described in is radially uniformly distributed on the surface of installing plate 1, forms " rice " font and arranges.4 described T-slots 11 are also provided with mounting hole 12, for realizing the connection of test fixture and electric vibration table main body.Described mounting hole 12 is manhole, and runs through back structures 2, and T-slot described in every bar is provided with 6 mounting holes 12, with the central shaft of described lightening hole for axis of symmetry, described lightening hole symmetria bilateralis distribute.All mounting holes 12 on the surface of installing plate 1 in interior, in, outer three layers of distribution, and be arranged in, on outer three distribution circles, described three round common centers of circle of distribution.
The surface of described installing plate 1 is also inlaid with M12 steel bushing, and M12 steel bushing distributes by the mode shown in Fig. 3 on installing plate 1:
With arbitrary described T-slot 11 place straight line for datum line, draw the parallel lines of this datum line equally spacedly in the both sides of datum line.Then be new datum line with another T-slot 11 place vertical with selected T-slot 11 at straight line, the parallel lines of this new datum line are drawn equally spacedly in the both sides of this datum line, the spacing drawn parallel lines for twice is identical, then can form several squares on the surface of installing plate 1, described M12 steel bushing is embedded in described foursquare summit place.
The surface of described installing plate 1 is also inlaid with M20 steel bushing, M20 steel bushing distributes by the mode shown in Fig. 4 on installing plate 1: described M20 steel bushing is embedded in the edge of installing plate 1, in inside and outside two-layer distribution, the common distribution circle of M20 steel bushing of all internal layers, all outer field M20 steel bushings are another distribution circle altogether, the concyclic heart of two distribution circles.With arbitrary described T-slot 11 place straight line for datum line, with the intersection point of this datum line and described lightening hole central axis for rotation center turns clockwise, described M20 steel bushing is embedded in the point of intersection respectively at inside and outside distribution circle when datum line rotates to 11.25 °, 33.75 °, 56.25 °, 78.75 °, 101.25 °, 123.75 °, 146.25 ° and 168.75 °.
As shown in Figure 4,5, back structures 2 is arranged at the back side of installing plate 1, and it has 8 identical reinforcements 21 and 8 identical depressions 22.Described reinforcement 21 is arranged at the projected position of described T-slot 11 at installing plate 1 back side along the radial direction of installing plate 1, and described reinforcement 21 cross section is in a thickness direction zhou duicheng tuxing, and reduces gradually along the thickness of installing plate 1 radial direction reinforcement 21 from the inside to the outside.Described depression 22 is the cambered surface of symmetrical shape.Be provided with a depression 22 between two adjacent reinforcements 21, the described axis of symmetry in two adjacent reinforcements 21 cross section is in a thickness direction 45 °, angle.
The using method of the general switching vibration test fixture of electric vibration table of the present invention as shown in Figure 6,7, product to be tested passes through T-slot, or coordinated with M12 or M20 steel bushing by screw, be fixed on fixture, then fixture is again by being fixed in through the screw of mounting hole 12 on the vertical platform of vibration or vibration slide unit.
Claims (6)
1. the general switching vibration test fixture of electric vibration table, it comprises installing plate (1) and back structures (2); It is characterized in that: described installing plate (1) profile is for circular dull and stereotyped, centered by the center of circle of installing plate (1), through-thickness offers lightening hole, for weight reduction, described lightening hole is manhole, and extends to back structures (2); The front of installing plate (1) is provided with 4 T-slots (11), for connecting with test products to be measured; 4 described T-slots (11) are also provided with mounting hole (12), for realizing the connection of test fixture and electric vibration table main body; The surface of described installing plate (1) is also inlaid with M12 steel bushing (13) and M20 steel bushing (14).
2. the general switching vibration test fixture of electric vibration table as claimed in claim 1, is characterized in that: the T-slot (11) described in 4 is radially uniformly distributed on the surface of installing plate (1), forms " rice " font and arranges.
3. the general switching vibration test fixture of electric vibration table as claimed in claim 2, it is characterized in that: described mounting hole (12) is manhole, and run through back structures (2), T-slot described in every bar is provided with 6 mounting holes (12), with the central shaft of described lightening hole for axis of symmetry, described lightening hole symmetria bilateralis distribute; All mounting holes (12) on the surface of installing plate (1) in interior, in, outer three layers of distribution, and be arranged in, on outer three distribution circles, described three round common centers of circle of distribution.
4. the general switching vibration test fixture of electric vibration table as claimed in claim 3, is characterized in that: described M12 steel bushing (13) is distributed on the surface of described installing plate (1) as follows:
With arbitrary described T-slot (11) place straight line for datum line, draw the parallel lines of this datum line equally spacedly in the both sides of datum line; Then be new datum line with another T-slot (11) place vertical with selected T-slot (11) at straight line, the parallel lines of this new datum line are drawn equally spacedly in the both sides of this datum line, the spacing drawn parallel lines for twice is identical, then can form several squares on the surface of installing plate (1), described M12 steel bushing (13) is embedded in described foursquare summit place.
5. the general switching vibration test fixture of electric vibration table as claimed in claim 4, it is characterized in that: described M20 steel bushing (14) is distributed on the surface of described installing plate (1) as follows: described M20 steel bushing (14) is embedded in the edge of installing plate (1), in inside and outside two-layer distribution, the common distribution circle of M20 steel bushing (14) of all internal layers, all outer field M20 steel bushings (14) are another distribution circle altogether, the concyclic heart of two distribution circles; With arbitrary described T-slot (11) place straight line for datum line, with the intersection point of this datum line and described lightening hole central axis for rotation center turns clockwise, described M20 steel bushing (14) is embedded in the point of intersection respectively at inside and outside distribution circle when datum line rotates to 11.25 °, 33.75 °, 56.25 °, 78.75 °, 101.25 °, 123.75 °, 146.25 ° and 168.75 °.
6. the general switching vibration test fixture of electric vibration table as claimed in claim 5, it is characterized in that: described back structures (2) is arranged at the back side of installing plate (1), it has 8 identical reinforcements (21) and 8 identical depressions (22); Described reinforcement (21) is arranged at the projected position of described T-slot (11) at installing plate (1) back side along the radial direction of installing plate (1), described reinforcement (21) cross section is in a thickness direction zhou duicheng tuxing, and reduces gradually along the thickness of installing plate (1) radial direction reinforcement (21) from the inside to the outside; The cambered surface that described depression (22) is symmetrical shape; Be provided with a depression (22) between two adjacent reinforcements (21), the described axis of symmetry in two adjacent reinforcements (21) cross section is in a thickness direction 45 °, angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433194.4U CN205067034U (en) | 2015-06-23 | 2015-06-23 | General switching vibration test anchor clamps of electric vibration table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433194.4U CN205067034U (en) | 2015-06-23 | 2015-06-23 | General switching vibration test anchor clamps of electric vibration table |
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| CN205067034U true CN205067034U (en) | 2016-03-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289687A (en) * | 2015-06-23 | 2017-01-04 | 北京强度环境研究所 | A kind of electric vibration table general switching vibration test fixture |
| CN107991047A (en) * | 2017-11-27 | 2018-05-04 | 上海卫星装备研究所 | For spacecraft ground vibration test fixture |
| CN112628025A (en) * | 2020-12-17 | 2021-04-09 | 上海航天化工应用研究所 | Modularized adjustable device for vibration test of solid rocket engine |
-
2015
- 2015-06-23 CN CN201520433194.4U patent/CN205067034U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289687A (en) * | 2015-06-23 | 2017-01-04 | 北京强度环境研究所 | A kind of electric vibration table general switching vibration test fixture |
| CN107991047A (en) * | 2017-11-27 | 2018-05-04 | 上海卫星装备研究所 | For spacecraft ground vibration test fixture |
| CN107991047B (en) * | 2017-11-27 | 2021-05-28 | 上海卫星装备研究所 | Ground vibration test fixture for spacecraft |
| CN112628025A (en) * | 2020-12-17 | 2021-04-09 | 上海航天化工应用研究所 | Modularized adjustable device for vibration test of solid rocket engine |
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