CN106483013A - Clamping device and load testing machine - Google Patents
Clamping device and load testing machine Download PDFInfo
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- CN106483013A CN106483013A CN201611063462.3A CN201611063462A CN106483013A CN 106483013 A CN106483013 A CN 106483013A CN 201611063462 A CN201611063462 A CN 201611063462A CN 106483013 A CN106483013 A CN 106483013A
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- clamping
- clamping device
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- keeper
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 47
- 239000007937 lozenge Substances 0.000 claims description 30
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000013519 translation Methods 0.000 description 5
- 230000014616 translation Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a clamping device and a load testing machine. Wherein, clamping device includes base component, centre gripping subassembly and at least one setting element. The clamping assembly at least comprises a first clamping block, the first clamping block is provided with a clamping surface and a wedge-shaped surface opposite to the clamping surface, the wedge-shaped surface of the first clamping block is opposite to the inclined surface of the inclined part of the groove, the first clamping block is provided with two translational freedom degrees, and the two translational freedom degrees are respectively vertical to and parallel to the bottom wall and are parallel to the cross section of the groove. The locating piece comprises a fixed end and a limiting end, the fixed end of the locating piece is connected to one of the base assembly and the at least one clamping block, and the limiting end abuts against the other of the base assembly and the clamping block to form a guiding relation. The load testing machine disclosed by the invention at least comprises the clamping device, and the clamping device is used for clamping a synchronous belt test piece.
Description
Technical field
The invention belongs to clamp art, more particularly to a kind of clamping device and load test machine.
Background technology
, also known as Timing Belt, toothed belt transmission is while have V belt translation, Chain conveyer and gear-driven advantage for cog belt.Synchronous
In V belt translation, band engages transmission motion and power with relying between belt wheel, therefore band is slided Wu relative between belt wheel, can guarantee that standard
True gearratio.Toothed belt transmission noise is little, and wearability is good, without the need for lubrication, is widely used in requiring in modern industry automation
During gearratio is accurate, in the operating mode of small-power transmission.The dynamic and static load test of cog belt is reliability and the life-span of cog belt
The link on basis in research, needs to clamp cog belt with corresponding frock when testing cog belt load on a testing machine,
Ensure that two ends are fixed well, form stable loading chain.
The type kind of cog belt is a lot, and the cog belt of different model has the parameters such as different profiles of tooth, modulus and width.
Clamping device should be able to adapt to the cog belt of different model, it is ensured that the aligning of cog belt, clamping or uninstall process flexibility and reliability.Logical
Often, in order that the grip block synchronizing moving of clamping device, is to be fixedly connected between grip block and drive mechanism, complex structure, can
Poor by property, and grip block can not change, it is impossible to adapt to miscellaneous test specimen.
Content of the invention
The embodiment of the present invention provides a kind of clamping device and load test machine, easily can carry out clamping and survey to test specimen
Examination.
In a first aspect, a kind of clamping device is provided, including base assembly and clamp assemblies.Base assembly at least includes pedestal
And the groove of pedestal is arranged at, groove includes diapire, the first side wall that is connected with diapire respectively and is oppositely arranged and the second side
Wall, clamp assemblies are contained in groove.In groove, at least the first side wall includes rake, rake away from diapire one end towards the
Two sidewall slope.Clamp assemblies at least include the first grip block, and the first grip block has clamping face and relative with the clamping face
Lozenges, the lozenges of the first grip block are oppositely arranged with the inclined-plane of the rake of groove, and the first grip block has two translations
The free degree, two translational degree of freedom are respectively perpendicular and parallel row in diapire and each parallel to groove cross section.Clamping device also includes
At least one keeper, at least one keeper include fixing end and positive stop end, and fixing end is connected to base assembly and clamping group
One of part, positive stop end form guiding relation with the other of base assembly and clamp assemblies abutting contact.
In the first mode in the cards, the fixing end of at least one keeper and positive stop end are tabular, fixing
With predetermined angular between end and positive stop end.
In conjunction with above-mentioned mode in the cards, in second mode in the cards, the first grip block is in hexahedron, and
Including two perpendicular to lozenges and the side of clamping face, the fixing end of at least one keeper is fixed on the side of the first grip block
On face, the positive stop end of at least one keeper is with base assembly against formation guiding relation.
In conjunction with above-mentioned mode in the cards, in the third mode in the cards, rake is located with the rake
Side wall between with locating surface, the positive stop end abutting contact of locating surface and at least one keeper forms guiding relation.
In conjunction with above-mentioned mode in the cards, in the 4th kind of mode in the cards, also set in the second sidewall of pedestal
There is rake, rake is inclined towards the first side wall away from one end of diapire.Clamp assemblies also include the second grip block, the second folder
Block is held in hexahedron, with clamping face and the lozenges relative with the clamping face and two perpendicular to lozenges and clamping face
Side, the lozenges of the second grip block is oppositely arranged with the rake inclined-plane of second sidewall, and the second grip block is flat with two
The dynamic free degree, two translational degree of freedom are respectively perpendicular and parallel row in diapire and each parallel to groove cross section, the first grip block with
The clamping face of the second grip block is arranged face-to-face.
In conjunction with above-mentioned mode in the cards, in the 5th kind of mode in the cards, base assembly also includes pallet, if
It is placed between groove bottom wall and clamp assemblies and for supporting clamp assemblies.
In conjunction with above-mentioned mode in the cards, in the 6th kind of mode in the cards, pallet includes to be respectively arranged at this
First guide part at pallet two ends and the second guide part.The quantity of at least one keeper is four, and four keepers pass through respectively
Fixing end is connected to two sides of the first grip block and two sides of the second grip block, the positive stop end of four keepers and support
First guide part of disk and the second guide part abutting contact simultaneously form guiding relation.
In conjunction with above-mentioned mode in the cards, in the 7th kind of mode in the cards, the first guide part of pallet and
Two guide parts are that the pallet two ends are recessed the step to be formed.
In conjunction with above-mentioned mode in the cards, in the 8th kind of mode in the cards, clamping device also includes drive rod,
One end of drive rod can be dynamically connected with pedestal, and the other end of drive rod is fixed on pallet and for driving pallet.
In conjunction with above-mentioned mode in the cards, in the 9th kind of mode in the cards, clamping device also includes reset machine
Structure, resetting-mechanism are connected between at least one grip block and base assembly.
In conjunction with above-mentioned mode in the cards, in the tenth kind of mode in the cards, resetting-mechanism includes spring, spring
One end be connected at least one grip block, the other end of spring is connected on base assembly.
In conjunction with above-mentioned mode in the cards, in a kind of the tenth mode in the cards, the clamping face of the first grip block
It is the toothed surface that mates for the profile of tooth with Timing Belt.
Second aspect, provides a kind of load test machine, at least includes the clamping device of any one in technique scheme,
Clamping device is used for clamping Timing Belt test specimen.
Clamping device and load test machine that the present invention is provided, the processing technology of keeper is simple, cost is relatively low, can pass through
The keeper of configuration different size realizes the multiple grip blocks of same pedestal adaptation, same grip block multiple positions on pedestal
Relation is put, effectively reduces inventory cost and management cost.
Further, since the groove structure of pedestal is simple, the requirement to processing technology is relatively low, and by with keeper, clamping
Cooperation between block, can effectively, easy and neatly realize grip block positioning in a groove and guiding.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to making needed for the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the clamping device of one embodiment of the invention；
Fig. 2 is the structural representation of the base assembly of clamping device shown in Fig. 1；
Fig. 3 is the structural representation of the first grip block of clamping device shown in Fig. 1；
Fig. 4 is the structural representation of the second grip block of clamping device shown in Fig. 1；
Fig. 5 is the structural representation of the keeper of clamping device shown in Fig. 1；
Fig. 6 is the structural representation of the clamping device of another embodiment of the present invention；
Fig. 7 is the structural representation after clamping device shown in Fig. 6 removes pedestal；
Fig. 8 is the structural representation of the pedestal of clamping device shown in Fig. 6；
Fig. 9 is the structural representation of the pallet of clamping device shown in Fig. 6；
Figure 10 is the structural representation of the first grip block of clamping device shown in Fig. 6；
Figure 11 is the structural representation of the second grip block of clamping device shown in Fig. 6；
Figure 12 is the structural representation of keeper in embodiment illustrated in fig. 6；
Figure 13 is the structural representation of the one embodiment according to load test machine of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Feature and the exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, it is proposed that many details, to provide complete understanding of the present invention.But, to those skilled in the art
It will be apparent that the present invention can be implemented in the case of some details in these details are not needed.Below to implementing
The description of example is just for the sake of being better understood to the present invention to provide by the example for illustrating the present invention.The present invention is never limited
In any concrete structure set forth below and configuration, but cover under the premise of without departing from the spirit of the present invention part,
Part and any modification, replacement and the improvement of connected mode.In the the accompanying drawings and the following description, be shown without known structure and
Technology, to avoid causing the present invention unnecessary obscuring.
Additionally, described feature, structure or characteristic can be combined in one or more enforcements in any suitable manner
In example.In the following description, provide many details to fully understand embodiments of the invention so as to be given.Need
Bright, in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with multiple shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；Conversely, thesing embodiments are provided so that the present invention more
Fully and completely, and by the design of example embodiment those skilled in the art is comprehensively conveyed to.
Fig. 1 is the structural representation of the clamping device 1 according to one embodiment of the invention.As shown in figure 1, clamping device 1
Including base assembly 500, the first grip block 100, the second grip block 200, keeper 310, keeper 320 and spring 400 etc..Base
Holder assembly 500 is used for housing the first grip block 100, the second grip block 200, keeper 310 and spring 400.In the present embodiment, folder
Holding component includes the first grip block 100 and the second grip block 200.
Fig. 2 is the structural representation of the base assembly 500 of clamping device 1 shown in Fig. 1.Base assembly 500 includes pedestal
510.
In the present embodiment, pedestal 510 is cylinder, including the concave end by pedestal 510 and from extending radially through pedestal 510
Groove (figure is not marked).Groove includes the side wall 512,513 of diapire 511 and 511 both sides of diapire.It is all provided with side wall 512 and side wall 513
Rake is equipped with, and the groove segment for being provided with rake forms dovetail groove.It is emphasized that side wall 512 and side wall 513
Rake is at least partly oppositely arranged, and is oppositely arranged in the present embodiment completely.By taking the rake on side wall 512 as an example, the inclination
Portion includes inclined-plane 514 and the locating surface 515,516 for being adjoined with its both sides on groove length direction respectively, locating surface 515,
516 each parallel to dovetail groove cross section.Rake on side wall 513 includes inclined-plane 517 and locating surface 518,519, with
Rake identical structure on side wall 512.Inclined-plane 514, inclined-plane 517 and diapire 511 are collectively forming the cell wall of above-mentioned dovetail groove,
Inclined-plane 514 is inclined towards side wall 513 away from one end of diapire 511, and inclined-plane 517 is inclined towards side wall 512 away from one end of diapire 511
Tiltedly.
Used as an optional embodiment, the base assembly 500 of the present embodiment may further include drive rod 520.?
Section on diapire 511 between inclined-plane 514 and inclined-plane 517 is additionally provided with the hole for accommodating drive rod 520, drive rod
520 can move back and forth in the hole, and can be extended in groove by the hole.
Fig. 3 is the structural representation of the first grip block 100 of clamping device 1 shown in Fig. 1.Fig. 1 and 3 is seen also, folder
Holding component includes that the first grip block 100 and the second grip block 200, the first grip block 100 and the second grip block 200 are used for pressing from both sides in the lump
Hold thing to be held.Wherein, the first grip block 100 substantially be in hexahedron, with clamping face 130, side 140 and 150, top surface 160,
Bottom surface 110 and lozenges 120.Wherein, side 140 and 150 is arranged on relative both sides on 100 width of the first grip block,
All vertical with clamping face 130 and lozenges 120；Top surface 160 and bottom surface 110 are oppositely arranged, and aforementioned four face ring is around clamping face 130
Configuration.Lozenges 120 is oppositely arranged with clamping face 130, and lozenges 120, with respect to clamping face 130 with constant slope, this is oblique
Degree is matched with the gradient on the inclined-plane 514 or 517 of 510 groove of pedestal.Clamping face 130 is provided with some teeth groove being parallel to each other,
Coordinate for the flank of tooth with cog belt.161,162,163,164 and of groove is provided with the top surface 160 of the first grip block 100
165.Line centered on groove 165, with groove 165 as symmetry axis, inside and outside 163 He of groove for being respectively spacing 150mm in its both sides
164th, spacing is the groove 161 and 162 of 180mm, to adapt to the centering alignment of two kinds of conventional cog belts of 150mm and 180mm.
Fig. 4 is the structural representation of the second grip block 200 of clamping device 1 shown in Fig. 1.As illustrated, the second grip block
200 is in substantially hexahedron, with clamping face 230, side 240 and 250, top surface 260, bottom surface 210 and lozenges 220.Second folder
Hold block 200 to have and 100 essentially identical configuration of the first grip block, specifically can illustrate referring to the structure of the first grip block 100, this
Place repeats no more.Difference is that its clamping face 230 is plane, does not have teeth groove.
Fig. 5 is the structural representation of the keeper 310 of clamping device 1 shown in Fig. 1.As illustrated, keeper 310 is in " L "
Shape, its shorter part are the fixing end of rectangular plate-like and are provided with installing hole and mounting surface 301 that its longer part is rectangle
The positive stop end of tabular including the end face 303 positioned at the portion distal end, with 90 degree of predetermined folders between fixing end and positive stop end
Angle.And mounting surface 301 is located at the side towards positive stop end in fixing end.According to actual needs, the fixing end of keeper 310 and
Positive stop end may be configured as other shapes, therebetween it can also be provided that other angles, however it is not limited to the rectangle in the present embodiment
With 90 degree of angles.
Fig. 1 is referred to, further illustrates each element assembly relation of clamping device 1.The is arranged in the groove of pedestal 510
One grip block 100 and the second grip block 200, and the clamping face of the clamping face 130 of the first grip block 100 and the second grip block 200
230 face-to-face settings.The lozenges 220 of the second grip block 200 is engaged with the inclined-plane 514 on side wall 512, the first grip block
100 lozenges 120 is engaged with the inclined-plane 517 on side wall 513.First grip block 100 and the second grip block 200 are respectively provided with
Two translational degree of freedom, two translational degree of freedom are respectively perpendicular and parallel row in diapire 511 and each parallel to groove cross section.When
One grip block 100 and the second grip block 200 be subject to external force and away from groove bottom wall 511 and towards its notch side to mobile when,
Inclined-plane 514 can act on the lozenges 220 of the second grip block 200 and make the second grip block 200 towards 517 1 side shifting of inclined-plane；
Meanwhile, inclined-plane 517 can act on the lozenges 120 of the first grip block 100 and make the first grip block 100 towards 514 side of inclined-plane
Mobile.In other words, the first grip block 100 and the second grip block 200 be subject to external force and towards groove notch side to mobile when,
The two also can be adjacent to each other in the presence of the two of groove rakes, realizes holding action.
Wherein, the first grip block 100 and the external force of the second grip block 200 is promoted to be provided by drive rod 520.Drive rod
520 top surface can act on the bottom surface 210 of the bottom surface 110 of the first grip block 100 and the second grip block 200 so that the first folder
Hold block 100 and the second grip block 200 at the same to bottom land 511 notch side to movement.It should be understood that, using the teaching of the invention it is possible to provide promote first
The device of the external force of grip block 100 and the second grip block 200 is not limited to the drive rod 520 described in the present embodiment, may be used also
With other devices being provided on pedestal 510 or outside pedestal 510, as long as 100 He of the first grip block in groove can be promoted
Second grip block 200 is to notch side to movement.For example, in one alternate embodiment, can be substituted with cylinder and drive
Bar 520 drives the first grip block 100 and the second grip block 200.In another alternative embodiment, base assembly is hydraulic cylinder,
Wherein, drive rod 520 is the piston rod of hydraulic cylinder, and pedestal is for stretching out one end of piston rod on the cylinder body of hydraulic cylinder.
Keeper 310 is connected on the side 240 of the second grip block 200, specifically, the installation of 310 fixing end of keeper
Face 301 fits in the side 240 of the second grip block 200, and keeper 310 is fixed on by screw through the installing hole of keeper 310
Second grip block 200.The positive stop end of keeper 310 is used for forming spacing cooperation with the rake on base side wall 512, specifically
Ground, the locating surface 515 of rake forms spacing with 303 abutting contact of end face of keeper 310.Keeper 320 and keeper 310
With identical structure, between the locating surface 518 on keeper 320, the first grip block 100 and side wall 513 also have with above-mentioned
Identical annexation between three.
First grip block 100 is can achieve and locating surface on pedestal 510 by the keeper 320 being connected on its side 150
Spacing between 518.Positioning that can according to the width of the first grip block 100 and its in a groove needs to determine keeper
The size of 320 positive stop end so that grip block being capable of position when the end face of the positive stop end of keeper is contacted with locating surface in groove
Precalculated position in groove such that it is able to make a kind of pedestal adapt to the grip block of different size, while also increase to clamp
Test specimen specification.In addition, the grip block to same specification, can change different keepers to adjust grip block in pedestal
Position in groove, in this way, same grip block can be made to adapt to the test specimen of different size, reduces clamping block specifications, increases folder
Hold the scope of application of device.
When the first grip block 100 and the second grip block 200 are to the notch side of groove to movement, keeper 310 and 320
Between the end face at upper limit end and locating surface 515 and 518, generation is relative slides, and now keeper 310 and 320 plays guiding and makees
With being prevented from grip block and shift in motion process, it is ensured that clamping process accurate and firm.
It is understood that the quantity of keeper is not limited to two in the present embodiment, can also be three or four
Individual.For example, in one alternate embodiment, two sides 240 and 250 of the second grip block 200 all each connect a positioning
Part, the structure of two keepers are all identical with the structure of above-mentioned keeper 310.The end face difference of the positive stop end of two keepers
Coordinate with the locating surface 515 on side wall 512 and 516 abutting contact of locating surface, formed spacing at two and be oriented to, limit second and clamp
Block 200 is moved on groove bearing of trend, that is, limit the second grip block 200 parallel to the translation freedom on groove bearing of trend
Degree.Meanwhile, the side 150 and 160 of the first grip block 100 is respectively connected with a keeper, the structure of two keepers all with upper
The structure of the keeper 310 that states is identical.The end face of the positive stop end of two keepers respectively with side wall 513 on locating surface 517 and
518 abutting contact of locating surface coordinates, spacing at formation two, limits the first grip block 100 and moves on groove bearing of trend, that is, limits
The first grip block 100 is made parallel to the translational degree of freedom on groove bearing of trend.Now, when the first grip block 100 and second
When grip block 200 is to the notch side of bottom land 511 to movement, two keepers connected on each grip block are all between pedestal
Relative slip is produced, the guide effect of keeper is further enhancing, be prevented from grip block and occur in motion process along flat
Row is offset on the groove bearing of trend, it is ensured that clamping process accurate and firm, prevent Timing Belt test specimen in clamping process inclined
From precalculated position, and clamping device 1 is born perpendicular to diapire 511 during clamping is completed to Timing Belt test specimen and
Parallel to the pulling force of groove cross section, and bear parallel to diapire 511 and parallel to groove cross section pressure, it is automatically right to realize
In, eliminate the shearing force in other directions, it is ensured that the accuracy of test result.
It should be appreciated that the structure of keeper and link position are not limited to aforesaid way.For example, in an optional enforcement
In example, keeper is straight plate part, and the two ends of keeper are respectively fixing end and positive stop end.Fixing end is fixed on pedestal 510
Precalculated position on, for example, precalculated position on pedestal 510 on the end face of 512 side of side wall of groove, its positive stop end are prolonged
The side 240 that groove part and the end can act on the second grip block 200 is extended, is formed to the spacing of the second grip block 200.With
Sample ground, the keeper also can form guide effect to the second grip block 200 when the second grip block 200 moves.Can also be simultaneously
Two straight panel shape keepers are set on the end face of 513 side of side wall of groove on pedestal 510, make two keepers pair
The side 140 and 150 of the first grip block 100 forms spacing and is oriented to.In another alternative embodiment, keeper is straight panel shape
Part, the two ends of keeper are fixing end, are limiting section in the middle part of two ends.The length of the keeper is more than the width of groove.Positioning
Part is fixed on 510 end face of pedestal, in the middle part of which across groove and by two fixing ends along perpendicular to the direction of groove length
Abutting contact between the side 150 of the side 240 and the first grip block 100 of limiting section and the second grip block 200, forms to two
The positioning and guiding of grip block.
In one alternate embodiment, clamping device 1 further includes spring 400, and spring 400 is arranged at the first grip block
Between 100 and pedestal 510, one end of spring 400 is connected to the screw being fixed on the first grip block 100, and the other end is connected to
On pedestal 510.When the first grip block 100 receives external force away from groove bottom wall 511,400 pairs of the first grip blocks 100 of spring produce drawings
Power, makes the first grip block 100 not allowed to be drawn back in groove by external force effect, realizes resetting.
In clamping device provided in an embodiment of the present invention 1, the upper groove structure of pedestal 510 is simple, to processing technology
Require relatively low, and by the cooperation between keeper and grip block realize grip block easy in a groove and neatly positioning and
It is oriented to.And the processing technology of keeper is simple, cost is relatively low, can realize same pedestal by configuring the keeper of different size
Adapting to multiple grip blocks, same grip block has multiple position relationships on pedestal, effectively reduces inventory cost and management cost.
Used as an alternative embodiment, on pedestal 510, only recess sidewall 512 is provided with rake, is not provided with side wall 513
Rake, on side wall 513 position relative with the rake on side wall 512 be clamping face (not shown), the clamping face perpendicular to
Groove bottom wall 511, in other words, side wall 513 itself can be used as the clamping face of clamping workpiece.The second grip block is provided only with groove
200, now, the contact of incline plane of the lozenges of the second grip block 200 and rake coordinates, the clamping in clamping face and recess sidewall
Face is oppositely arranged.When the second grip block 200 by external force drive and towards diapire notch side direction move when, rake oblique
Face acts on the lozenges of the second grip block 200 and so that grip block is moved towards the clamping face in recess sidewall.Second grip block
Between 200 clamping face and the clamping face of recess sidewall, distance reduces, and realizes holding function.
Fig. 6 is the structural representation of the clamping device 1a of another embodiment of the present invention, and Fig. 7 is clamping device shown in Fig. 6
The structural representation after pedestal 510a is removed in 1a.As illustrated, clamping device includes base assembly 500a, the first grip block
100a, the second grip block 200a, keeper 310a, keeper 320a, pallet 530a.Base assembly 500a is used for accommodating the first folder
Hold block 100a and the second grip block 200a.In the present embodiment, clamp assemblies include the first grip block 100a and the second grip block
200a.
Fig. 8 is the structural representation of pedestal 510a in clamping device 1a shown in Fig. 6, and Fig. 9 is pallet in embodiment illustrated in fig. 6
The structural representation of 530a.In the present embodiment, base assembly 500a includes pedestal 510a, drive rod 520a and pallet 530a.
Pedestal 510a is cylinder, and its end is provided with from the groove for extending radially through cylinder.Groove includes diapire 511a and diapire
Side wall 514a, 517a of 511a both sides.Side wall 514a, 517a are inclined-plane and make groove for dovetail channel-shaped.On diapire 511a also
The hole being provided with for accommodating drive rod 520a, drive rod 520a are arranged in the hole, and drive rod 520a can be reciprocal in the hole
Mobile, and can be extended in groove by the hole.
The generally rectangular tabular of pallet 530a, the two ends on its length direction are provided with the step that depression is formed, the step
For guide part, step surface 531a, 532a are parallel to the bottom surface 534a of pallet 530a.Wherein, step surface 531a, 532a and side
535a, 536a are spigot surface.The top surface 533a of pallet 530a is used for supporting the first grip block 100a and the second grip block 200a, its
Bottom surface 534a is used for connecting drive rod 520a.
Figure 10 is the structural representation of the first grip block 100a in clamping device 1a shown in Fig. 6.As illustrated, the first clamping
Block 100a is in hexahedron, with clamping face 130a, side 140a and 150a, top surface 160a, bottom surface 110a and lozenges 120a.Its
In, side 140a and 150a is oppositely arranged, and top surface 160a and bottom surface 110a are oppositely arranged, and aforementioned four face ring is around clamping face 130a
Configuration.Lozenges 120a is oppositely arranged with clamping face 130a, and lozenges 120a has constant slope with respect to clamping face 130a.
Clamping face 130a is provided with some teeth groove being parallel to each other, and coordinates for the flank of tooth with cog belt.
Figure 11 is the structural representation of the second grip block 200a in clamping device 1a shown in Fig. 6.As illustrated, the second clamping
Block 200a is in substantially hexahedron, with clamping face 230a, side 240a and 250a, top surface 260a, bottom surface 210a and lozenges
220a.Second grip block 200a has and the second grip block 200a essentially identical configuration, and difference is, its clamping face
230a is plane, does not have teeth groove.
Figure 12 is the structural representation of keeper 310a in clamping device 1a shown in Fig. 6.As illustrated, keeper 310a is in
" L " shape, its shorter part are fixing end, and fixing end is provided with installing hole and mounting surface 301a；Its longer part is positive stop end,
Positive stop end includes the confined planes 302a adjacent with mounting surface 301a.Mounting surface 301a and confined planes 302a are respectively positioned on the interior of " L " shape
Angle side.
Fig. 6 and Fig. 7 is refer to, the assembly relation below in conjunction with Fig. 6 and Fig. 7 clamping device 1a is described further.
The first grip block 100a and the second grip block 200a, and the first grip block 100a is provided with the groove of pedestal 510a
The clamping face 130a and clamping face 230a of the second grip block 200a arrange face-to-face.The lozenges 220a of the second grip block 200a
It is engaged with side wall 514a, the lozenges 120a of the first grip block 100a is engaged with side wall 517a.
Pallet 530a is arranged between groove bottom wall 511a and the first grip block 100a and the second grip block 200a, and is passed through
Keeper 310a, 330a and keeper 320a, 340a are connected with the first grip block 100a and the second grip block 200a respectively.Tool
Body ground, the bottom surface 210a of the bottom surface 110a and the second grip block 200a of the top surface 533a of pallet 530a and the first grip block 100a connect
Touch and coordinate；The mounting surface 301a of keeper 310a fixing end fits in the side 240a of the second grip block 200a, and screw passes through fixed
The installing hole of position part 310a is fixed in the second grip block 200a；The positive stop end of keeper 310a extends to the platform of pallet 530a
At terrace 531a.Keeper 330a is attached with the second grip block 200a and pallet 530a in the same way；Keeper
320a, 340a and the first grip block 100a and pallet 530a also have above-mentioned annexation.
By above-mentioned annexation, the second grip block 200a forms an entirety with keeper 310a, 330a, this overall with
Formed between pallet 530a and be slidably connected.Similarly, the first grip block 100a forms an entirety with keeper 320a, 340a,
Formed between the entirety and pallet 530a and be slidably connected.
Pallet 530a is connected with drive rod 520a by its bottom surface 534a.When drive rod 520a drives pallet 530a towards recessed
The notch side of groove bottom wall 511a to mobile when, recess sidewall 514a and side wall 517a wedge shape respectively to the second grip block 200a
The lozenges 120a generation effect of face 220a and the first grip block 100a so that the second grip block 200a and the first grip block 100a
Movement is directed towards mutually, and between the clamping face 130 of the two and 130a, spacing reduces, and realizes holding action.As drive rod 520a
During retraction, drive pallet 530a to retract, the cascaded surface 531a of pallet 530a and 532a pull keeper 310a, 320a, 330a and
340a moves, while driving the first grip block 100a and the second grip block 200a motion, realizes resetting.
When the second grip block 200a is moved on pallet 530a surface, the bottom surface 210a of the second grip block 200a, keeper
The confined planes 302a of 310a and stationary plane 301a bear against top surface 533a, side 535a and the step surface 531a of pallet 530a and enter
Line slip, while side 536a and step surface 532a that the end face of keeper 330a and stationary plane bear against pallet 530a are carried out
Slide.In other words, the top surface 533a of pallet 530a, side 535a, 536a and step surface 531a, 532a can limit the second grip block
It is overall parallel to the translational degree of freedom on groove bearing of trend and its three turns that 200a and keeper 310a and 330a is formed
The dynamic free degree, makes the second grip block 200a only have perpendicular to groove bottom wall 511a and two translations parallel to groove cross section
The free degree, plays good guide effect so that the second grip block 200a can be swimmingly with respect to pallet 530a in groove
Slide；Similarly, the first grip block 100a also can be swimmingly with respect to pallet 530a in groove by keeper 320a, 340a
Slide, so that the smooth reliability of the clamping process of the first grip block 100a and the second grip block 200a, prevents grip block in fortune
Shift during dynamic, be not likely to produce clamping stagnation.
During clamping device 1a completes clamping to Timing Belt sample, it is prevented from grip block and sends out in motion process
Raw along offseting parallel on groove bearing of trend, it is ensured that clamping process accurate and firm, prevent Timing Belt in clamping process
Test specimen out of position, and causes Timing Belt test specimen to bear in clamping process perpendicular to diapire 511a and parallel to groove
The pulling force of cross section, and bear parallel to diapire 511a and parallel to groove cross section pressure, automatic centering is realized, eliminates which
The shearing force in his direction, it is ensured that the accuracy of test result.
Positioning that can according to grip block width and its in a groove needs to determine the size of the positive stop end of keeper, from
And a kind of pallet can be made to adapt to the grip block of different size, while also increasing the specification of the test specimen that can be clamped.In addition, to same
A kind of grip block of specification, can change different keepers to adjust position of the grip block with respect to pallet, so as to adjust folder
Hold position of the block in base recess.In this way, same grip block can be made to adapt to the test specimen of different size, reduce clamping slip gauge
Lattice, increase the scope of application of clamping device.
It should be appreciated that the link position of keeper is not limited to aforesaid way.Such as, in one alternate embodiment, fixed
Position part is still " L " shape, and its fixing end is fixed on pallet, and the contacts side surfaces of positive stop end and grip block, formation are spacing, and in clamping
Guide effect is formed to which when block is with respect to tray motion.In another alternative embodiment, keeper is straight panel shape, and which is fixed
End is connected on the side of grip block, is formed spacing and be oriented between the side 535a of positive stop end and pallet and 536a.Now drive
Lever 520a cannot then drive keeper 320a when retracting, and correspondingly can arrange resetting-mechanism between grip block and pedestal, with
Grip block is made to be back to bottom portion of groove.In another alternative embodiment, can arrange in pedestal 510a and embodiment clamping dress
Mutually isostructural groove in 1 is put, keeper fixing end is connected on the side of grip block, the locating surface of positive stop end and recess sidewall
Between formed spacing and be oriented to.
In clamping device provided in an embodiment of the present invention, the groove structure of pedestal is simple, and the requirement to processing technology is relatively low,
And by the cooperation between keeper, grip block and pallet, effectively, easy and neatly realize grip block determining in a groove
Position and guiding.And the processing technology of keeper is simple, cost is relatively low, can by configure the keeper of different size realize same
Pedestal adapts to multiple grip blocks, same grip block multiple position relationships on pedestal, effectively reduces inventory cost and management
Cost.
Present invention also offers a kind of load test machine, Figure 13 is the one embodiment according to load test machine of the present invention
Structural representation.As illustrated, load test machine includes two clamping devices 10 and 20, the two is coaxially disposed and pedestal upper groove
Opening direction relative, for clamping the two ends of Timing Belt 30.The structure and operation principle of clamping device 10 and 20 is referred to
Above, here is omitted.
After clamping device 10 and 20 clamps Timing Belt 30, the two can be moved to the direction of other side away from each other, to same
Step band 30 applies tensile load.Tensile load can be constantly acting load, or alternate load, to test the anti-of Timing Belt 30
Draw the limit or fatigue limit.It should be appreciated that clamping device 10 and/or 20 can be clamping device 1, or clamping device 1a, or
Any one clamping device in above-described embodiment.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or replacement should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
The protection domain of requirement is defined.
Claims (13)
1. a kind of clamping device, it is characterised in that include：
Base assembly, at least includes pedestal and is arranged at the groove of the pedestal, the groove include diapire, respectively with the bottom
The first side wall and second sidewall that wall is connected and is oppositely arranged；And
Clamp assemblies, are contained in the groove；
Wherein, in the groove, at least the first side wall includes rake, the rake away from the diapire one end towards the
Two sidewall slope；
The clamp assemblies at least include the first grip block, and first grip block has clamping face and relative with the clamping face
Lozenges, the lozenges of first grip block are oppositely arranged with the inclined-plane of the rake of the groove, first grip block
With two translational degree of freedom, described two translational degree of freedom are respectively perpendicular and parallel row in the diapire and each parallel to described recessed
Groove cross section；
The clamping device also includes at least one keeper, and at least one keeper includes fixing end and positive stop end, institute
State fixing end and be connected to one of the base assembly and the clamp assemblies, the positive stop end and the base assembly and institute
State the other of clamp assemblies abutting contact and form guiding relation.
2. clamping device according to claim 1, it is characterised in that the fixing end of at least one keeper and spacing
End is tabular, with predetermined angular between the fixing end and the positive stop end.
3. clamping device according to claim 2, it is characterised in that
First grip block is in hexahedron, and including two perpendicular to the lozenges and the side of clamping face；
The fixing end of at least one keeper is fixed on the side of first grip block, at least one keeper
Positive stop end and the base assembly against forming the guiding relation.
4. clamping device according to claim 3, it is characterised in that the side wall that the rake is located with the rake it
Between form the guiding relation with locating surface, the locating surface with the positive stop end abutting contact of at least one keeper.
5. clamping device according to claim 3, it is characterised in that
The second sidewall of the pedestal is provided with rake, and the rake is inclined towards the first side wall away from one end of the diapire
Tiltedly；
The clamp assemblies also include the second grip block, second grip block be in hexahedron, with clamping face and with the clamping
The relative lozenges in face and two are perpendicular to the lozenges and the side of clamping face, the lozenges of second grip block
It is oppositely arranged with the rake inclined-plane of the second sidewall, second grip block has two translational degree of freedom, described two
Translational degree of freedom is respectively perpendicular and parallel row in the diapire and each parallel to the groove cross section, first grip block and institute
The clamping face for stating the second grip block is arranged face-to-face.
6. clamping device according to claim 5, it is characterised in that the base assembly also includes pallet, is arranged at institute
State between groove bottom wall and the clamp assemblies and for supporting the clamp assemblies.
7. clamping device according to claim 6, it is characterised in that
The pallet includes the first guide part and the second guide part for being respectively arranged at the pallet two ends；
The quantity of at least one keeper is four, and four keepers are connected to the described first folder by fixing end respectively
Hold two sides of block and two sides of second grip block, the positive stop end of four keepers and the of the pallet
One guide part and the second guide part abutting contact simultaneously form guiding relation.
8. clamping device according to claim 7, it is characterised in that the first guide part of the pallet and the second guide part
Be recessed the step to be formed for the pallet two ends.
9. the clamping device according to claim 6-8 any one, it is characterised in that also include drive rod, the driving
One end of bar can be dynamically connected with the pedestal, and the other end of the drive rod is fixed on the pallet and for driving the support
Disk.
10. clamping device according to claim 1, it is characterised in that also include resetting-mechanism, the resetting-mechanism connection
Between at least one grip block and the base assembly.
11. clamping devices according to claim 10, it is characterised in that the resetting-mechanism includes spring, the spring
One end be connected at least one grip block, the other end of the spring is connected on the base assembly.
12. clamping devices according to claim 11, it is characterised in that the clamping face of first grip block be for
The toothed surface of the profile of tooth coupling of Timing Belt.
A kind of 13. load test machines, at least include the clamping device described in any one, the folder in claim 1-12
Device is held for clamping Timing Belt test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063462.3A CN106483013B (en) | 2016-11-28 | 2016-11-28 | clamping device and load testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063462.3A CN106483013B (en) | 2016-11-28 | 2016-11-28 | clamping device and load testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106483013A true CN106483013A (en) | 2017-03-08 |
| CN106483013B CN106483013B (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611063462.3A Active CN106483013B (en) | 2016-11-28 | 2016-11-28 | clamping device and load testing machine |
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| Country | Link |
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| CN (1) | CN106483013B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN111579358A (en) * | 2019-02-18 | 2020-08-25 | 中国航发商用航空发动机有限责任公司 | A frock clamp for testing ceramic matrix composite rupture strength |
| CN113340721A (en) * | 2021-06-07 | 2021-09-03 | 泉州永盛工程质量检测有限公司 | Electronic universal testing machine and testing clamp thereof |
| CN117554167A (en) * | 2023-11-13 | 2024-02-13 | 优正(广州)检测股份有限公司 | Tension test device and application method thereof |
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| JPH05107163A (en) * | 1991-10-18 | 1993-04-27 | Kawasaki Steel Corp | Test piece grasping jig for tensile testing machine |
| JPH09264826A (en) * | 1996-03-29 | 1997-10-07 | Shimadzu Corp | Material testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN111579358A (en) * | 2019-02-18 | 2020-08-25 | 中国航发商用航空发动机有限责任公司 | A frock clamp for testing ceramic matrix composite rupture strength |
| CN113340721A (en) * | 2021-06-07 | 2021-09-03 | 泉州永盛工程质量检测有限公司 | Electronic universal testing machine and testing clamp thereof |
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| CN117554167B (en) * | 2023-11-13 | 2024-05-10 | 优正(广州)检测股份有限公司 | Tension test device and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106483013B (en) | 2019-10-15 |
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