CN106092554B - A kind of track traffic product cabinet general comprehensive test fixture - Google Patents

A kind of track traffic product cabinet general comprehensive test fixture Download PDF

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Publication number
CN106092554B
CN106092554B CN201610665563.1A CN201610665563A CN106092554B CN 106092554 B CN106092554 B CN 106092554B CN 201610665563 A CN201610665563 A CN 201610665563A CN 106092554 B CN106092554 B CN 106092554B
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China
Prior art keywords
connecting hole
product cabinet
track traffic
comprehensive test
test fixture
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CN201610665563.1A
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Chinese (zh)
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CN106092554A (en
Inventor
刘敏
邵志和
易滔
班立权
张球红
谢松桃
胡玲军
张晓�
陈少敏
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Zhuzhou CRRC Times Electric Co Ltd
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Zhuzhou CRRC Times Electric Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/02Vibration-testing by means of a shake table
    • G01M7/027Specimen mounting arrangements, e.g. table head adapters

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instructional Devices (AREA)
  • Assembled Shelves (AREA)

Abstract

The invention discloses a kind of track traffic product cabinet general comprehensive test fixture, including a pair of of cleat assembly, a pair of of cleat assembly or so arranged for interval, the located space of product cabinet is formed between a pair of cleat assembly, the cleat assembly includes level board and vertical plate, the level board is equipped with the first connecting hole for being used for being connected with all-around test stand, the vertical plate includes body and the mounting portion extended to the located space, the mounting portion upper and lower ends are equipped with least one set of the second connecting hole for being used to install product cabinet, the quantity of same group of the second connecting hole is two or more and arranges along the vertical direction, the present invention has simple in structure, it is easy to adjust, the advantages that being matched with a variety of different model product cabinets.

Description

A kind of track traffic product cabinet general comprehensive test fixture
Technical field
The present invention relates to the experimental rig for track traffic product cabinet, more particularly to a kind of track traffic product cabinet General comprehensive test fixture, low-quality product cabinet is tested under the vibration stress of Medium and low intensity in being suitable for.
Background technology
Certain block board in box members such as track traffic product TCU, DCU, terminal cabinet, central machines is strengthened Experiment, accelerated life test or during accelerated degradation test, often select the multi-function test stands such as temperature, humidity and vibration test into Experiment under a variety of stress of row is, it is necessary to which board to be tested is inserted in cabinet slot, then is pressed from both sides by Cabinet Size and customization Tool, vibration is fixed on, on temperature and humidity multi-function test stand using fixture by cabinet, and fixture mainly rises fixed and transmits stress Effect, it is desirable to fixture has enough rigidity, is subjected to hot and humid air in product cabinet and is not deformed and corrosion, transmission it is vertical It is consistent to, horizontal or multiple free degree vibration stresses such as vertical and multi-function test stand setting value, is undistorted.Truly to go back Former locomotive, motor-car, urban rail operational process working environment and stress applying mode, it is necessary to by board and cabinet according to actual fortune The identical force part installation of row state, and apply the working stress with operating status equidirectional, form to it, and apply stress Intensity upgrading.There is certain difference in humiture and vibration in order to balance, multi-function test stand and common vibration mechine structure, Its table top is equipped with one piece of waterproof membrane, is fastened waterproof membrane in the stud array on table top by being covered with, treat trial product cabinet and Fixture can not be directly anchored on table top, but by being threaded hole on stud head, and matched somebody with somebody using fastener and threaded hole Close fixation and treat trial product cabinet and fixture.
Product cabinet is that bottom lifts mostly, is fixed by the bolt of front side four corners, different chassis forms and size Difference, the bolt location of four corners also differ, and according to its handling characteristics and test method, generally require individually designed, making Fixture, causes the test period extend, is of high cost;With increasing for product cabinet species, fixture model is also continuously increased, and wastes money Source, also takes laboratory space.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies of the prior art and provide it is a kind of it is simple in structure, easy to adjust, Can be with the matched track traffic product cabinet general comprehensive test fixture of a variety of different model product cabinets.
In order to solve the above technical problems, the present invention uses following technical scheme:A kind of track traffic product cabinet is general comprehensive Test fixture, including a pair of of cleat assembly, a pair of of cleat assembly or so arranged for interval are closed, is formed between a pair of cleat assembly The located space of product cabinet, the cleat assembly include level board and vertical plate, and the level board, which is equipped with, to be used for and synthesis First connecting hole of test platform connection, the vertical plate include body and the mounting portion extended to the located space, institute State mounting portion upper and lower ends and be equipped with least one set of the second connecting hole for being used to install product cabinet, same group of the second connecting hole Quantity is two or more and arranges along the vertical direction.
Further as above-mentioned technical proposal is improved:
The quantity of same group of the second connecting hole is multiple and is equally spaced, and is additionally provided between the level board of two blocks of left and right A pair of fine setting cushion block, the fine setting cushion block upper surface is horizontal, and fine setting cushion block lower surface is respectively equipped with one group of ladder in rear and front end Face, the 3rd connecting hole for being connected with all-around test stand, former and later two mutually level ladders are equipped with each cascaded surface Spacing between face is d1, and the spacing on all-around test stand between front and rear two adjacent bolts is d2, and d1=nd2, n is just Integer;Two adjacent the second connecting hole height differences are h1, and the maximum height difference between two cascaded surfaces is h2, h2 < h1.
The height of same group of cascaded surface reduces successively and the height difference of two neighboring cascaded surface is equal.
3rd connecting hole is counterbore.
The mounting portion upper and lower ends are equipped with the second connecting hole described in two groups, and the second connecting hole described in two groups is along right and left It is high 1/2h1 to the second connecting hole of than another group of position of arrangement and the second connecting hole of one of which.
Second connecting hole and the cascaded surface are equipped with height and indicate.
First connecting hole is the kidney slot arranged in left-right direction.
First connecting hole is equipped with multiple, multiple first connecting hole rectangular array arrangements.
Reinforcing rib is installed between the level board and the vertical plate, the body and the mounting portion are located at respectively The reinforcing rib both sides.
The level board and vertical plate are formed by plate bending.
Compared with prior art, the advantage of the invention is that:Track traffic product cabinet general comprehensive disclosed by the invention Test fixture, its cleat assembly include level board and vertical plate, and level board is fixed by the first connecting hole with all-around test stand Connect, set the mounting portion extended to located space to be used to product cabinet be installed on vertical plate, it is ensured that to put down product cabinet bottom Support, mounting portion upper and lower ends set more than two second connecting holes, it is different to be suitable for different height, four corners bolt location Product cabinet, it is simple in structure, easy to adjust, applied widely.
Further, set and finely tune cushion block, on the cascaded surface and test platform by finely tuning cushion block lower surface different height Bolt coordinate, product cabinet can be lifted height be finely adjusted, to overcome the mismachining tolerance of the second connecting hole, product cabinet etc. And rigging error, simple in structure, governing speed is fast, has higher Adjustment precision in the case where ensureing the machining accuracy of cascaded surface.
Further, the fixed reinforcing rib between vertical plate and level board so that cleat assembly has enough rigidity, energy It is enough to adapt to applied stress.
Brief description of the drawings
Stereochemical structure signal when Fig. 1 is track traffic product cabinet general comprehensive test fixture use state of the present invention Figure.
Fig. 2 is the main structure diagram of the fine setting cushion block in the present invention(Amplification).
Fig. 3 is the overlooking the structure diagram of the fine setting cushion block in the present invention(Amplification).
Fig. 4 is the dimensional structure diagram of the cleat assembly in the present invention.
Fig. 5 is the main structure diagram of the cleat assembly in the present invention.
Fig. 6 is the overlooking the structure diagram of the cleat assembly in the present invention.
Fig. 7 is the left view structural representation of the cleat assembly in the present invention.
Each label represents in figure:1st, cleat assembly;11st, level board;111st, the first connecting hole;12nd, vertical plate;121st, body Portion;122nd, mounting portion;123rd, the second connecting hole;2nd, product cabinet;21st, journal stirrup;3rd, all-around test stand;4th, reinforcing rib;5th, it is micro- Adjust cushion block;51st, cascaded surface;52nd, the 3rd connecting hole.
Embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As shown in Figures 1 to 7, the track traffic product cabinet general comprehensive test fixture of the present embodiment, including a pair of of folder Plate component 1, a pair of of 1 or so arranged for interval of cleat assembly, the located space of product cabinet 2, folder are formed between a pair of of cleat assembly 1 Plate component 1 includes level board 11 and vertical plate 12, and level board 11 is equipped with the first connection for being used to be connected with all-around test stand 3 Hole 111, vertical plate 12 includes body 121 and the mounting portion 122 extended to located space, 122 upper and lower ends of mounting portion are all provided with Have at least one set of the second connecting hole 123 for being used to install product cabinet 2, the quantity of same group of the second connecting hole 123 for two with Arrange above and along the vertical direction, the track traffic product cabinet general comprehensive test fixture, its level board 11 passes through the first connection Hole 111 is fixedly connected with all-around test stand 3, sets the mounting portion 122 extended to located space to be used to install on vertical plate 12 Product cabinet 2, it is ensured that 2 bottom of product cabinet lifts, and 122 upper and lower ends of mounting portion set more than two second connecting holes 123, it is suitable for the different product cabinet 2 of different height, four corners bolt location, simple in structure, the easy to adjust, scope of application Extensively.
Referring specifically to Fig. 2 and Fig. 7, the quantity of same group of the second connecting hole 123 is multiple and is equally spaced, two pieces of left and right A pair of of fine setting cushion block 5 is additionally provided between level board 11,5 upper surface of fine setting cushion block is horizontal, and 5 lower surface of fine setting cushion block is in rear and front end One group of cascaded surface 51 is respectively equipped with, the 3rd connecting hole 52 for being connected with all-around test stand 3 is equipped with each cascaded surface 51, Spacing between former and later two mutually level cascaded surfaces 51 is d1, on all-around test stand 3 front and rear two adjacent bolts it Between spacing be d2, d1=nd2, n are positive integer, former and later two cascaded surfaces 51 by selecting a certain height are put down with compbined test Bolt on platform 3 coordinates, and height can be lifted to product cabinet 2 and is finely adjusted, to overcome the second connecting hole 123, product cabinet 2 etc. Mismachining tolerance and rigging error, simple in structure, governing speed is fast, ensure cascaded surface 51 machining accuracy under have it is higher Adjustment precision, after 2 and second 123 distribution of connecting hole of product cabinet, has gap between 2 bottom of product cabinet and fine setting cushion block 5 Or when needing to turn down the height ability distribution of product cabinet 2, move back and forth fine setting cushion block 5 and select different cascaded surfaces 51, with reality Existing both sides are different to lift highly;Two adjacent 123 height differences of the second connecting hole are h1, the maximum height difference between two cascaded surfaces 51 For h2, h2 < h1, i.e., when the scope for needing to finely tune is excessive, then replace different 2 four jiaos of the second connecting hole 123 and product cabinet The bolt at place coordinates.In the present embodiment, the distance of former and later two bolts is 100mm, i.e. d2=100mm on all-around test stand 3, The width of the hexagonal (hexagon)nut of bolt head is 24mm, sets the height of same group of cascaded surface 51 to reduce successively and two neighboring ladder The height difference in face 51 is equal, n=1, i.e. d1=d2=100mm, each 51 corresponding length and width dimensions of cascaded surface is 25mm(Cannot be small In the width of nut), quadravalence is equipped with cascaded surface 51 is organized, 24mm, 22mm, 20mm and 18mm are followed successively by by rear to preceding thickness, most Big height difference h2=24mm-18mm=6mm, h1=10mm;The aperture of second connecting hole 123 passes through for the fastening bolt of M6.At other In embodiment, when the distance of former and later two bolts on all-around test stand 3 become larger or all-around test stand 3 on stud width During smaller, it may be designed as more multistage.
In the present embodiment, the 3rd connecting hole 52 is counterbore, coordinates sunk screw to be used to be fastened with beneficial to holding fine setting cushion block 5 Upper surface it is smooth.
In the present embodiment, 122 upper and lower ends of mounting portion are equipped with two group of second connecting hole 123, two group of second connecting hole 123 Than another group of the position 123 high 1/2h1 of the second connecting hole of arrangement and the second connecting hole of one of which 123 in left-right direction, specifically Referring to Fig. 7, one group of second connecting hole 123 on right side than left side one group of second connecting hole, 123 high 5mm, namely the second of right side Connecting hole 123 is located among corresponding upper and lower two the second connecting holes 123 in left side, and by moving right, product cabinet 2 can contract Minimum height difference between small neighbouring two the second connecting holes 123 in left side, further facilitates different from four corners bolt location Product cabinet 2 match.
In the present embodiment, the second connecting hole 123 and cascaded surface 51 are equipped with height and indicate(Not shown in figure)So that examination The personnel of testing can more intuitively learn the height dimension of product cabinet 2.
Referring specifically to Fig. 6, the first connecting hole 111 is the kidney slot arranged in left-right direction, easy to adjust cleat assembly 1 it Between distance to adapt to the product cabinet 2 of different in width, further increase fixture the scope of application.In the present embodiment, first connects The wire length for connecing the 111 both ends center of circle of hole is 50mm, namely a pair of of 1 maximum width regulated value of cleat assembly is 100mm, and first connects Hole 111 is connect equipped with 6 and arranges that the adjacent two kidney-shapeds pitch of holes of left and right directions is 50mm, and anteroposterior direction spacing is in 3 × 2 arrays 100mm, in other embodiments, quantity and arrangement can suitably be adjusted according to the specification of level board 11;The aperture of kidney slot Passed through for the fastening bolt of M12.
In the present embodiment, reinforcing rib 4 is installed between level board 11 and vertical plate 12 so that cleat assembly 1 has enough Rigidity, can adapt to applied stress, body 121 and mounting portion 122 are located at 4 both sides of reinforcing rib respectively,
In the present embodiment, level board 11 and vertical plate 12 are formed by plate bending, and reinforcing rib 4 can be divided by the way of welding Do not fixed with level board 11 and vertical plate 12, plate and reinforcing rib 4 preferably use aluminium alloy.
The application method of the track traffic product cabinet general comprehensive test fixture of the present invention is as follows:
1):The cascaded surface 51 of interior thickness is selected to be positioned on the bolt of all-around test stand 3 when initial, then by product Cabinet 2 is positioned on fine setting cushion block 5;If location hole and the second nearest connecting hole 123 on the journal stirrup 21 of the front side of product cabinet 2 2mm-4mm is highly differed, then moves back and forth fine setting cushion block 5 and adjusts lifting highly for product cabinet 2, make if height difference is more than 5mm A pair of of cleat assembly 1 is mutually drawn close or remote, is changed to another group of corresponding second connecting hole 123 and is compared again, is front and rear Mobile fine setting cushion block 5, if still suffering from fine error(1mm or so), can be in the pad 1mm plain cushion compensation of 5 bottom of fine setting cushion block;Complete Product cabinet 2, fine setting cushion block 5 are fixed with all-around test stand 3 using fastener after the height adjustment of product cabinet 2,
2):Level board 11 and all-around test stand 3 are fixed using fastener;
3):Product cabinet 2 and vertical plate 12 are fixed using the bolt of 2 four corners of product cabinet, that is, complete the peace of fixture Dress, can carry out follow-up temperature, humidity and vibration integrated experiment.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, Equivalent variations and modification, should all fall in the range of technical solution of the present invention protection.

Claims (9)

  1. A kind of 1. track traffic product cabinet general comprehensive test fixture, it is characterised in that:Including a pair of of cleat assembly(1), one To the cleat assembly(1)Left and right arranged for interval, a pair of cleat assembly(1)Between form product cabinet(2)Positioning it is empty Between, the cleat assembly(1)Including level board(11)And vertical plate(12), the level board(11)It is equipped with and is used to try with comprehensive Test platform(3)First connecting hole of connection(111), the vertical plate(12)Including body(121)And to the located space The mounting portion of extension(122), the mounting portion(122)Upper and lower ends are equipped with least one set of for installing product cabinet(2)'s Second connecting hole(123), same group of the second connecting hole(123)Quantity two or more and to arrange along the vertical direction, same group Second connecting hole(123)Quantity be multiple and be equally spaced, two blocks of the left and right level board(11)Between be additionally provided with a pair Finely tune cushion block(5), the fine setting cushion block(5)Upper surface is horizontal, finely tunes cushion block(5)Lower surface is respectively equipped with one group in rear and front end Cascaded surface(51), each cascaded surface(51)Place, which is equipped with, to be used for and all-around test stand(3)3rd connecting hole of connection(52), it is front and rear Two mutually level cascaded surfaces(51)Between spacing be d1, all-around test stand(3)Between upper front and rear two neighboring bolt Spacing be d2, d1=nd2, n are positive integer;Two adjacent the second connecting holes(123)Height difference is h1, two cascaded surfaces(51)It Between maximum height difference be h2, h2 < h1.
  2. 2. track traffic product cabinet general comprehensive test fixture according to claim 1, it is characterised in that:Same group of rank Tread(51)Height reduce successively and two neighboring cascaded surface(51)Height difference it is equal.
  3. 3. track traffic product cabinet general comprehensive test fixture according to claim 1, it is characterised in that:Described 3rd Connecting hole(52)For counterbore.
  4. 4. the track traffic product cabinet general comprehensive test fixture according to claim 1 or 2 or 3, it is characterised in that:Institute State mounting portion(122)Upper and lower ends are equipped with the second connecting hole described in two groups(123), the second connecting hole described in two groups(123)Edge Left and right directions is arranged and the second connecting hole of one of which(123)The second connecting hole of than another group of position(123)High 1/2h1.
  5. 5. track traffic product cabinet general comprehensive test fixture according to claim 4, it is characterised in that:Described second Connecting hole(123)And the cascaded surface(51)Height is equipped to indicate.
  6. 6. track traffic product cabinet general comprehensive test fixture according to any one of claim 1 to 3, its feature exist In:First connecting hole(111)For the kidney slot arranged in left-right direction.
  7. 7. track traffic product cabinet general comprehensive test fixture according to claim 6, it is characterised in that:Described first Connecting hole(111)Equipped with multiple, multiple first connecting holes(111)Rectangular array is arranged.
  8. 8. track traffic product cabinet general comprehensive test fixture according to any one of claim 1 to 3, its feature exist In:The level board(11)With the vertical plate(12)Between be installed with reinforcing rib(4), the body(121)With the peace Dress portion(122)It is located at the reinforcing rib respectively(4)Both sides.
  9. 9. track traffic product cabinet general comprehensive test fixture according to claim 8, it is characterised in that:The level Plate(11)And vertical plate(12)Formed by plate bending.
CN201610665563.1A 2016-08-15 2016-08-15 A kind of track traffic product cabinet general comprehensive test fixture Active CN106092554B (en)

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Application Number Priority Date Filing Date Title
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CN106092554B true CN106092554B (en) 2018-05-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106802380A (en) * 2017-03-08 2017-06-06 株洲中车时代电气股份有限公司 Track traffic electronics veneer strenuous test method
CN106959204B (en) * 2017-04-13 2019-02-26 哈尔滨工程大学 A kind of can ice driving means
CN109581000A (en) * 2018-12-26 2019-04-05 中山市明阳电器有限公司 A kind of experimental rig can be used for development equipment

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* Cited by examiner, † Cited by third party
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KR100671733B1 (en) * 2005-11-16 2007-01-19 경신공업 주식회사 Jig for shaking test of fuse with relay box
KR100861079B1 (en) * 2007-03-28 2008-09-30 주식회사 피앤텔 Inspection apparatus for torsion
CN202994406U (en) * 2012-11-30 2013-06-12 西安电子工程研究所 Miniature-helicopter airborne pod vibration clamp
CN204487416U (en) * 2015-03-09 2015-07-22 中国航空工业集团公司沈阳飞机设计研究所 A kind of vibration test fixture
CN104748957A (en) * 2015-04-01 2015-07-01 浪潮电子信息产业股份有限公司 Stress deformation test platform special for server case
CN105043699A (en) * 2015-06-29 2015-11-11 浪潮电子信息产业股份有限公司 Vibration and impact testing method and device for internal and external parameters of server case
CN205940919U (en) * 2016-08-10 2017-02-08 株洲中车时代电气股份有限公司 General vibration anchor clamps of track traffic product machine case

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