CN102410917A

CN102410917A - Clamp device of two-shaft synchronous vibration table

Info

Publication number: CN102410917A
Application number: CN2011104107061A
Authority: CN
Inventors: 陈章位; 文祥; 栾强利
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2011-12-12
Filing date: 2011-12-12
Publication date: 2012-04-11
Anticipated expiration: 2031-12-12
Also published as: CN102410917B

Abstract

The invention discloses a clamp device of a two-shaft synchronous vibration table. The clamp device comprises a front adjustment clamp and a rear adjustment clamp; the front adjustment clamp comprises two parallel front adjustment clamping blocks, namely a first front adjustment clamping block and a second front adjustment clamping block; and the rear adjustment clamp comprises two parallel rear adjustment clamping blocks, namely a first rear adjustment clamping block and a second rear adjustment clamping block. With the independent front adjustment clamp and rear adjustment clamp, the clamp device can be used for a two-shaft vibration table to respectively clamp two shafts of a test piece, the reliability is high; moreover, since relative space between the front adjustment clamp and the rear adjustment clamp is adjustable, the space between the two shafts of the test piece can be adjusted by the clamp, and the location precision is high; furthermore, a rear support lug of the rear adjustment clamp is hinged with a rear adjustment bottom block, and the rear support lug can rotate around a hinge axis relative to the rear adjustment bottom block, so that the vibration table is effectively prevented from damaging the test piece in the work process owning to asynchronous vibration of a front shaft and a rear shaft.

Description

Dual-shaft synchronous oscillation platform grip device

Technical field

The present invention relates to the vibration testing device of test specimen, relate in particular to a kind of dual-shaft synchronous oscillation platform anchor clamps.

Background technology

Vibration test is applied to Aero-Space department the earliest, is widely used in fields such as earthquake simulation, communications and transportation, building now.Along with the raising that product reliability is required,, seem more and more important as the vibration experiment of the test specimen fail-test key equipment especially development of multiaxis pilot system especially at above-mentioned vehicle and aerospace field.Anchor clamps are for being fixed on test specimen on the shaking table work top, and pass to the device of testpieces to the vibration of shaking table, and its quality direct relation the quality of test.But at present the System for Large-scale Specimen unit clamp especially importance of multiaxis synchronous vibration platform anchor clamps is generally paid attention to inadequately; In the multi platform vibration processes if can't guarantee multiaxis synchronously; During the vertical direction exciting; Move interference between a plurality of vibrating shafts easily, serious situation possibly cause the rigid injury of test specimen, thereby produces serious consequence.The present invention is directed to a kind of dual-axis vibration platform; The anchor clamps that designed not only can be according to convenient preceding adjustment anchor clamps and the relative spacing of back adjustment anchor clamps on shaking table of regulating of test specimen length; And can realize that anchor clamps are to the automatic adjusting of test specimen vibration when there is asynchrony phenomenon in the dual-axis vibration platform in vibration processes; Effectively avoid in the vibration processes asynchronous vibration to the destruction of test specimen, so far, domestic also do not see adopt these adjusted in concert anchor clamps on the dual-axis vibration platform.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, but a kind of dual-axis vibration platform anchor clamps of adjusted in concert are provided.

Two-axis simultaneous vibration table fixture adjustment device includes a front and rear adjustment jig to adjust the front top notes include two parallel clamping block first clamping block front the transfer, and the second clamping block front the transfer, the rear adjust clamp comprises two parallel clamping block rear tune rear tune clamping blocks first and second clamping block rear the transfer; said first clamping block includes top notes first front adjusting plate, adjusted front the end of the first block the first adjustment front briquetting, front the transfer of the second clamping block includes a second adjustment front the end of the block, the second adjustment front briquetting, a second front adjustment plate, said first clamping block rear the transfer, including the first rear adjusting plate, adjusted rear the end of the first block, the first rear hinge, first posterior branch of the ears, the first adjustment rear briquetting, the second rear the transfer, including a second clamping block briquetting adjusted rear the second hinge rear the first rear two lug, adjusted rear the end of the second block, the second rear the adjustment plate; sequentially with the first front panel adjustment adjustment front the end of the first block, the first adjustment front briquetting and bolted, and the second front By adjusting plate has a second end of the block front the adjustment, the second adjustment front briquetting and bolted, the first adjustment front adjustment front the end of the block and the first through-hole formed compacts with front adjustment with the second adjusted front the end of the block and the second through-hole formed compacts with coaxial coaxial feedthrough through the holes in the specimen front axle; first adjustment rear adjustment rear the end of the board with the first block, and through bolt connection, the first post-adjustment rear the end of the block and the first post-lug through the first hinge hinged on first rear a first lug adjusted rear briquetting and bolted, and the second rear the first adjustment plate is provided adjusted rear the end of two blocks and bolted, and the second rear the end of the block and the second rear adjusting lug rear hinge articulated through the second, and the second rear a second lug on adjusted rear briquetting, and through bolt connection, the first post-lug adjusted rear the first mandrel formed briquettes with hole lug and the second rear the second match rear adjustment briquetting feedthrough hole formed coaxial coaxial feedthrough hole through trial piece rear axle.

Compared with prior art, the invention has the beneficial effects as follows:

(1) the present invention is because adjustment anchor clamps and back adjustment anchor clamps before adopting, and can be applicable to the diaxon shaking table diaxon of test specimen is clamped respectively, and reliability is high; Bearing accuracy is high, and can keep higher precision for a long time, and load-bearing capacity is strong; Can bear from up and down and the load of left and right directions, allowable load is big, has high rigidity simultaneously; In the test frequency range, resonance can not occur, installation work-hour is few, improves the efficient of vibration test greatly.

(2) the present invention is because preceding adjustment anchor clamps follow back adjustment anchor clamps respectively the front axle and the rear axle of test specimen to be clamped respectively; Through the relative position between the adjustment base plate in front of the adjustment sole piece before adjusting; And adjustment sole piece in back can be realized the adjustment of anchor clamps to test specimen two distance between axles with the relative position between back adjustment base plate.

(3) Since the present invention, rear adjustment jig rear adjusting lug bottom block and the rear hinged rear lug can be adjusted rear the end of the block relative to the hinge axis of rotation around which, thus effectively preventing vibration table in the working process of the front axle and the rear axle is not synchronization of the specimen damage.

Description of drawings

Fig. 1 is a dual-shaft synchronous oscillation platform grip device structural representation of the present invention.

Embodiment

Shown in Figure 1, two-axis simultaneous vibration table fixture adjustment device includes a front and rear adjustment jig jig to adjust the front top notes include two parallel clamping block first front adjusting clamping block 1, and the second front the transfer clamping block 2, the rear adjustment fixture includes two parallel clamping block first tune rear tune rear clamping block 3, the second rear the transfer clamping block 4; said first clamping block 1 includes top notes first a former adjustment plate 5, the first adjustment front the end of block 6, the first adjustment front briquetting 7, front the transfer of the second clamping block 2 includes a second adjustment front the end of the block 8, the second adjustment front briquetting 9, two front adjusting plate 10, the first rear the transfer rear clamping block 3 comprises a first adjusting plate 11, the first adjustment rear the end of the block 12, the first rear the hinge 13, the first rear the lug 14, the first post-adjustment pressure block 15, rear the transfer of the second clamping block 4 includes a second rear adjusting clamps 16, the second rear the hinge 17, and the second rear the lug 18, the second adjustment rear the end of the block 19, and the second rear the adjustment plate 20; first front adjusting plate 5 sequentially adjusted front the end of a first block 6, the first adjustment front briquetting 7 and bolted, and the second front the adjustment plate 10 has a second front adjustment sequentially bottom block 8 the second adjustment front briquetting 9 and bolted, adjusted front the end of the first block of six with the first adjustment front briquetting 7 with the formation of the feedthrough hole and adjusted front the end of the second block of eight with the second adjustment front briquetting a through hole 9 is formed coaxially with the coaxial through-hole in the front axle through the specimen; adjusted rear the first plate 11 with a first end of block 12 rear the adjustment, and by bolting, adjusted rear the first rear the end of the block 12 and the first lug 14 through the first hinged rear hinge 13, the first rear the first lug 14 is provided with a first adjustment rear briquetting 15 and bolted, and the second rear adjusting plate 20 is provided adjusted rear the end of the second block 19, and bolted, and the second rear the adjustment rear the end of the block 19 and the second lug 18 through the second hinged rear hinge 17, and the second rear the lug 18 is provided with a second rear adjustment briquetting 16, and through bolt connection, the first rear the lug 14 with the first match rear the adjustment briquette forming mandrel 15 holes, and the second rear the lug 18 and the second rear adjusting clamps 16 with the formation of the feedthrough holes with shaft coaxial feedthrough hole in the rear axle through the specimen.

The course of work of the present invention is following:

Front and rear axles according to the spacing of the specimen, while adjusting the first notes of the first clamping block 1 front adjusting plate 5 and the first six front adjusting the relative position of the block and the second block of two front clamping plate 10 in the second front adjustment front adjustment block 8 and the second relative position, ensure that the first notes of the first clamping block a block of six front the end of the first adjustment front adjustment briquetting 7 with the formation of a second front the transfer feedthrough hole and clamping block 2 adjusted front the end of the second block of eight with the second adjustment front briquetting 9 hole coaxial with the mandrel formed and rear the transfer by simultaneously adjusting the first clamping block 3 rear first adjusting plate 11 and the first post-adjustment the relative position of block 12 and a second clamping block 4, rear the second rear the adjusting plate 20 and the second block 19, rear adjusting the relative position, ensure that the first clamping block 3 rear the transfer of the first lug 14 and the first post-rear adjusting clamps 15 with the formation of the feedthrough hole with the second clamping block 4 rear the transfer rear the second lug 18 and the second rear adjusting clamps 16 with the formation of the feedthrough hole coaxial; through the opposing position the adjustment , the specimen clamp spacing adjustment of two axes.

The first preceding clamp 1 and the second preceding front axle that test specimen is installed in the clamp 2 coaxial center holes of transferring transferred parallel to each other; And the front axle of test specimen clamped; First back parallel to each other transfers the clamp 3 and second back to transfer the rear axle that test specimen is installed in the clamp 4 coaxial center holes, and the rear axle of test specimen is clamped.

After the antero posterior axis position of test specimen is installed accurately; Because said first back transfers in the clamp 3 the first back adjustment sole piece 12 and the first back journal stirrup 14 hinged through hinge 13 after first; The first back journal stirrup 14 can center on its hinged axle center rotation by the relative first back adjustment sole piece 12; Hinge 17 was hinged after journal stirrup 18 passed through second behind the second back adjustment sole piece 19 and second in the accent clamp 4 after second; Journal stirrup 18 can center on its hinged axle center rotation by the relative second back adjustment sole piece 19 after second, thereby can prevent owing to the vibration of front axle and rear axle is asynchronous test specimen to be damaged in the shaking table course of work.

Claims

1. A two-axis simultaneous vibration table fixture device, wherein: including front and rear adjustment adjustment jig jig to adjust the front top notes include two parallel clamping block first front adjusting the clamping block (1), p. two front the transfer clamping block (2), rear adjusting the rear clamp includes two parallel clamping block first tune rear tune clamping block (3), the second rear the transfer clamping block (4); said first a tune front clamping block (1) comprises a first front adjustment plate (5), adjusted front the end of the first block (6), first front adjusting clamps (7), front the transfer of the second clamping block (2 ) includes a second end of the block front adjustment (8), the second adjustment front briquetting (9), the second front adjustment plate (10), rear the transfer of the first clamping block (3), including the first rear adjusting plate ( 11), rear adjusting the first end block (12), the first rear hinge (13), the first rear lug (14), rear adjusting the first compact (15), rear the transfer of the second clamping block ( 4) includes a second post-adjustment clamps (16), rear the second hinge (17), a second rear lug (18), the second rear adjusting the bottom block (19), a second rear adjustment plate (20); s a former adjustment plate (5) front adjustment on sequentially with the first bottom block (6), first front adjusting clamps (7), and bolted, and the second front adjusting plate (10) on a sequentially adjusted front the end of the second block (8), the second adjustment front briquetting (9), and through bolted, adjusted front the end of the first block (6) and the first adjustment front briquetting (7) with the formation of the feedthrough hole adjustment front the end of the second block (8) and the second front adjustment briquette (9) coaxial with the formation of the through-holes, coaxial feedthrough through the hole in the specimen axle; adjusted rear the first plate (11 ) rear a first adjustment of the bottom block (12), and by bolting, adjusted rear the end of the first block (12) and the first rear lug (14) rear passing through the first hinge (13) is hinged, the first rear lug (14) on a first adjustment rear briquetting (15), and through bolt connection, the second rear the adjustment plate (20) with a second adjustment rear the end of the block (19), and through bolt connection, first adjusted rear the end of two blocks (19) and the second rear the lug (18) through the second rear the hinge (17) hinged to the second rear lug (18) on a second rear adjusting clamps (16), and through bolts, the first rear lug (14) and the first post-adjustment clamps (15) with the formation of the through-hole, and the second rear lug (18) and the second rear adjustment clamps (16) with the formation of the Peg Hole Coaxial, coaxial feedthrough through the holes in the specimen rear axle.