CN105842056A - Clamping device for clamping test piece and use method of clamping device - Google Patents
Clamping device for clamping test piece and use method of clamping device Download PDFInfo
- Publication number
- CN105842056A CN105842056A CN201610292549.1A CN201610292549A CN105842056A CN 105842056 A CN105842056 A CN 105842056A CN 201610292549 A CN201610292549 A CN 201610292549A CN 105842056 A CN105842056 A CN 105842056A
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- holding piece
- hole
- lower holding
- earthly branches
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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
- G01N2203/0405—Features allowing alignment between specimen and 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
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a clamping device which comprises an upper clamping piece and a lower clamping piece .The upper clamping piece comprises an upper clamping piece body, upper clamping piece through holes are formed in the upper clamping piece body in the thickness direction, and one side face of the upper clamping piece body is provided with dovetail tenons; the lower clamping piece comprises a lower clamping piece body and a testing machine clamping part which is used for being clamped in an external testing machine, the lower clamping piece body further comprises a lower clamping piece body base part and a lower clamping piece body protruding part, lower clamping piece through holes are formed in the lower clamping piece body base part in the thickness direction, the lower clamping piece body protruding part is provided with dovetail mortises, and the depth of each dovetail mortise is equal to the height difference; the dovetail tenons can be aligned with the dovetail mortises, at the moment, the upper clamping piece through holes can be aligned with the lower clamping piece through holes .The clamping device has the advantages of being compact in structure and accurate in positioning .The invention further provides a corresponding clamping method, and the clamping stability and accuracy of a test piece to be tested are greatly improved.
Description
Technical field
The present invention relates to a kind of clamping device for clamp assay part and using method thereof, particularly relate to a kind of for pressing from both sides
Hold clamping device and the using method thereof of thin-walled fatigue test piece.
Background technology
In order to meet safe, economic, comfortable, the composite request of environmental protection, novel commercial aircraft is in organism material and structure
In selection, on the one hand aluminium alloy, aluminium lithium alloy isodensity is little, specific strength is high light material, the most a large amount of use
Multi-step thin-wall construction, such as head, middle rear body eyelid covering etc., by skinpiston local reduction, forms multi-step thin-walled knot
Structure, can make skinpiston weight saving more than 40%.
Multi-step thin-wall construction is the typical light structures form of aircraft skin wallboard, and conventional skinpiston is by changing
Learning milling, etch away parts sheet metal obtains the multi-step thin-wall part of design, but discharges during chemical milling
The residual stress of plate surface resisting fatigue makes reduce fatigue life, and it is big that parts size precision controls difficulty, and process contamination is tight
Weight, does not meets the manufacture requirements of green, environmental protection, so for a new generation's commercial aircraft advanced person's lightweight aluminium lithium alloy thin-walled multi-step
Structure, after machinery milling, fatigue behaviour and the reliability of thin-walled flat part is studied, and for meeting high-performance, long-life
The formulation of the design of aluminium lithium alloy skinpiston, shaping and process for machining and manufacturing specification provides basic data and technical support.
Due to the existence of groove milling, so the fatigue sample size of design is relatively big in fatigue test, general fatigue testing machine
Clamp all can not meet the width requirement of test specimen；And along with the increase of specimen thickness, retained part easily slides, so
Effectively, stable method of clamping is the primary problem solved.
Summary of the invention
For solving above-mentioned technical problem, effectively prevent from can not being effectively directed between holding piece with lower holding piece, the most anti-
Only clamping device easily occurs mutually to slide with test specimen to be measured, and the present invention provides a kind of clamping device, including: upper holding piece with under
Holding piece,
Described upper holding piece includes that holding piece body, described upper holding piece body have upper holding piece body thickness,
It is provided with holding piece through hole on the thickness direction of described upper holding piece body, a side of described upper holding piece body sets
Being equipped with tenon, described tenon is dovetail；
Described lower holding piece includes lower holding piece body and test machine clamping portion, the centrage position in described test machine clamping portion
On the axis of symmetry of described lower holding piece, described test machine clamping portion is used for being clamped in the testing machine of outside, described lower folder
Holding sheet body and farther include lower holding piece body base portion and lower holding piece body elevated portion, described lower holding piece body is raised
Portion is adjacent with described test machine clamping portion, described lower holding piece body elevated portion upper surface and described lower holding piece body base portion
There is between upper surface difference in height, the thickness direction of described lower holding piece body base portion be provided with lower holding piece through hole,
On the medial surface that described lower holding piece body elevated portion is adjacent with described lower holding piece body base portion, described lower holding piece is originally
Body elevated portion is provided with the fourth of the twelve Earthly Branches, and the degree of depth at the described fourth of the twelve Earthly Branches is equal to described difference in height, and the described fourth of the twelve Earthly Branches is the dovetail fourth of the twelve Earthly Branches；
The described tenon of described upper holding piece can be close to slide along the depth direction at the described fourth of the twelve Earthly Branches of described lower holding piece, from
And described upper holding piece is placed on described lower holding piece or described upper holding piece is taken out from described lower holding piece, when
When described upper holding piece is placed on described lower holding piece, described upper holding piece through hole can be right with described lower holding piece through hole
Accurate.
Preferably, the quantity at least two of described tenon, and along described tenon place this body side surface of holding piece with
Axial symmetry is arranged；The quantity at the described fourth of the twelve Earthly Branches is identical with the quantity of described tenon, and with described test machine clamping portion for axis of symmetry with axle
It is arranged symmetrically with；Each described tenon both corresponds to a described fourth of the twelve Earthly Branches.
Preferably, observe in described lower holding piece, the orthographic projection line of side, the fourth of the twelve Earthly Branches and described test machine clamping portion from front
The angle of mandrel is 3 ° to 20 °, the described fourth of the twelve Earthly Branches and the matching form of described tenon.It is highly preferred that observe described lower holding piece from front,
The orthographic projection line of side, the described fourth of the twelve Earthly Branches is 6 ° to 12 ° with the angle of described test machine clamping portion central shaft, the described fourth of the twelve Earthly Branches and described tenon
Matching form.
Preferably, the quantity of described lower holding piece through hole is at least two, and is right with described test machine clamping portion
Axle is claimed to arrange with axial symmetry；The quantity of described upper holding piece through hole is identical with the quantity of described lower holding piece through hole, each described
Upper holding piece through hole both corresponds to a described lower holding piece through hole.It is highly preferred that described lower holding piece through hole at least includes two
Row, often arranges described lower holding piece through hole and arranges with axial symmetry with described test machine clamping portion for axis of symmetry；Described upper holding piece
The row of through hole is identical with the row of described lower holding piece through hole and quantity with quantity, and each described upper holding piece through hole is corresponding
In a described lower holding piece through hole.
Preferably, described upper holding piece body has the upper holding piece body thickness degree of depth less than the described fourth of the twelve Earthly Branches, is i.e. less than
Described difference in height.
Preferably, upper holding piece body lower surface and/or lower holding piece body base portion upper surface indentation.
Preferably, described upper holding piece and/or lower holding piece use Cr12 die steel material to process, and pass through
Quenching Treatment.Upper holding piece and/or lower holding piece can also use the metal material of other high intensity to make.
Present invention also offers a clamp method using above-mentioned clamping device, comprise the steps:
A (), for self not having the test specimen to be measured of through hole, utilizes outside punch device, exists according to described upper holding piece through hole
Position on described upper grip block or described lower holding piece through hole position on described lower grip block, at the two ends of test specimen to be measured
Beat corresponding through hole respectively；
(b) for one end of test specimen to be measured, having and the treating of described upper grip block and described lower grip block respective through hole
Test block is placed on lower holding piece body base portion upper surface；
C () puts into the described fourth of the twelve Earthly Branches of described lower holding piece the described tenon of described upper holding piece, and make described tenon along described
It is close to downwards slide in the fourth of the twelve Earthly Branches, until upper holding piece body lower surface and the upper surface of described test specimen to be measured；
D () is directed at the described upper holding piece through hole of described upper holding piece and each corresponding through hole of described test specimen to be measured, for
Each through hole, uses upper holding piece through hole, the corresponding through hole of described test specimen to be measured, described lower folder described in screw bolt passes respectively
Hold sheet through hole, and tightening nuts is fixed；
On one end of e testing machine that () is clamped to described test machine clamping portion outside；
F () is for the other end of test specimen to be measured, repeat the above steps (b)-(e)；
G (), after the two ends of test specimen to be measured are all respectively clamped to the two ends of testing machine, starts test operation.
The clamping device of the present invention has a characteristic that parts are less, compact conformation, convenient disassembly, can with Reusability,
Can effectively prevent from can not being effectively directed between holding piece with lower holding piece, effectively prevent clamping device with test specimen to be measured easily
Occur mutually to slide.
The clamp method of the present invention has a characteristic that and can effectively clamp UUT, even if in test process
External test machine be applied with bigger power, still can firm grip test specimen to be measured, and there is good centering, significantly
Improve clamping stability and the accuracy of test specimen to be measured.
Accompanying drawing explanation
Fig. 1 is the upper holding piece of the clamping device of present invention schematic perspective view when separating with lower holding piece.
Fig. 2 A is front view during upper holding piece and the combination of lower holding piece of the clamping device of the present invention.
Fig. 2 B is side view during upper holding piece and the combination of lower holding piece of the clamping device of the present invention.
Fig. 3 A is the front view of the lower holding piece of the clamping device of the present invention.
Fig. 3 B is the front view of the upper holding piece of the clamping device of the present invention.
Fig. 4 is the sectional perspective schematic diagram of the lower holding piece of the clamping device of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, the present invention is further detailed explanation.For the convenience discussed, use
On " ", D score, "left", "right" the orientation in each schematic diagram is indicated, be conducive to the expansion discussed.
As it is shown in figure 1, situation when separating for the upper holding piece 2 of clamping device of the present invention and lower holding piece 1.With this phase
Should, front view when Fig. 2 A and Fig. 2 B is not the most the upper holding piece 2 of the clamping device of the present invention and lower holding piece 1 combines and side-looking
Figure.Meanwhile, it is referred to Fig. 3 A and Fig. 3 B, respectively show the lower holding piece 1 of the clamping device of the present invention and upper clamping
Sheet 2.
In FIG, currently preferred clamping device, including: upper holding piece 2 and lower holding piece 1.
In conjunction with Fig. 1 and Fig. 3 B, upper holding piece 2 includes that holding piece body 22, upper holding piece body 22 have upper holding piece
Body thickness 2234.Preferably, as shown in Figure 2 B, upper holding piece body lower surface 2232 indentation, be used for increasing its with
Frictional force between test specimen to be measured.The thickness direction of upper holding piece body 22 is provided with holding piece through hole 24 on 5.5
Upper holding piece through hole 24 is divided into two rows, and first row is 2, and second row is 3, all arranges along upper holding piece axis of symmetry axial symmetry.
Being provided with 3 tenons 21 on one side of upper holding piece body 22, tenon 21 is dovetail.
Specifically, according to Fig. 3 B, dovetail refers to, tenon 21 includes tenon outer face 212 and two tenon sides 211,
Holding piece body 22 is referred to as tenon inner face 213 with the joint face of tenon 21, and wherein, tenon outer face 212 is more than tenon inner face 213, and
And two tenon sides 211 all present skewed to inside contracting of tenon inner face 213 from tenon outer face 212.
In conjunction with Fig. 1 and Fig. 3 A, lower holding piece 1 includes lower holding piece body 12 and test machine clamping portion 13, test machine clamping
The centrage in portion 13 is positioned on the axis of symmetry of lower holding piece 1, and test machine clamping portion 13 is in the testing machine being clamped in outside.
Test machine clamping portion 13 can be designed to bar-shaped, it is possible to after meeting clamping, testing machine chuck is overall with this clamping device and test specimen
Centering.Lower holding piece body 12 farther includes lower holding piece body base portion 123 and lower holding piece body elevated portion
124.Lower holding piece body elevated portion 124 is adjacent with described test machine clamping portion 13.Lower holding piece body elevated portion upper surface with
Between described lower holding piece body base portion upper surface, there is difference in height 1234.Preferably, upper holding piece body thickness 2234
Less than the degree of depth at the fourth of the twelve Earthly Branches 11, i.e. less than difference in height 1234.
The thickness direction of lower holding piece body base portion 123 is provided with 5 lower holding piece through holes 14.Clamp under 5
Sheet through hole 14 is corresponding with 5 upper holding piece through holes 24 respectively, is also two rows, and first row is 2, and second row is 3, all with examination
Testing machine clamping part 13 to arrange for axis of symmetry axial symmetry, each lower holding piece through hole 14 both corresponds to a upper holding piece through hole 24.
Preferably, as shown in Fig. 2 B and Fig. 4, lower holding piece body base portion upper surface 1232 indentation, it is used for increasing it and treating
Frictional force between test block.At the medial surface that lower holding piece body elevated portion 124 is adjacent with lower holding piece body base portion 123
On, lower holding piece body elevated portion 124 is provided with 3 fourths of the twelve Earthly Branches 11, corresponding with 3 tenons respectively, and the degree of depth at the fourth of the twelve Earthly Branches 11 is equal to difference in height
1234, the fourth of the twelve Earthly Branches 11 is the dovetail fourth of the twelve Earthly Branches.
Specifically, according to Fig. 3 A, the dovetail fourth of the twelve Earthly Branches refers to, the fourth of the twelve Earthly Branches 11 includes fourth of the twelve Earthly Branches inner face 112 and side, two fourths of the twelve Earthly Branches 111,
The open end at the fourth of the twelve Earthly Branches 11 on the side towards lower holding piece body base portion 123 of lower holding piece body elevated portion 124 is referred to as
Outer face, the fourth of the twelve Earthly Branches 113, wherein, fourth of the twelve Earthly Branches inner face 112 is more than outer face, the fourth of the twelve Earthly Branches 113, and side, two fourths of the twelve Earthly Branches 111 all presents from outer face, the fourth of the twelve Earthly Branches
113 is skewed in fourth of the twelve Earthly Branches inner face 112.
As shown in Figure 3 A and Figure 3 B, holding piece 1 from front is observed, the orthographic projection line of side, the fourth of the twelve Earthly Branches 111 and test machine clamping
The angle of portion 13 central shaft is 3 ° to 20 °, preferably 6 ° to 12 °, the fourth of the twelve Earthly Branches 11 and the matching form of tenon 21.
Shown in Fig. 1 and Fig. 2 A, Fig. 2 B, the tenon 21 of upper holding piece 2 can be along the degree of depth side at the fourth of the twelve Earthly Branches 11 of lower holding piece 1
To being close to slip, thus upper holding piece 2 is placed on lower holding piece 1 or upper holding piece 2 is taken out on lower holding piece 1.
When upper holding piece 2 is placed on lower holding piece 1, upper holding piece through hole 24 can be directed at lower holding piece through hole 14.
Owing to have employed coordinating of dovetail and the dovetail fourth of the twelve Earthly Branches, upper holding piece 2 is only along the degree of depth at the fourth of the twelve Earthly Branches 11 of lower holding piece 1
Direction moves up and down, only this space translational degree of freedom.As can be seen here, upper holding piece 2 can not be at the bottom of lower holding piece body
The place move in plane of seat portion upper surface 1232, the most Just because of this, as long as the tenon 21 of upper holding piece 2 is inserted into lower holding piece
Time in the fourth of the twelve Earthly Branches 11 of 1, upper holding piece through hole 24 just can be directed at automatically with lower holding piece through hole 14.
Preferably, upper holding piece 2 and lower holding piece 1 all use Cr12 die steel material to process, and through quenching
Process so that material has higher intensity, hardness and wearability, it is possible to avoid this clamping device to contact with outside testing machine
Destroying and abrasion occurs in position, enables that this clamping device is repeated multiple times to be used.
Use the above-mentioned preferred clamping device of the present invention, it is possible to realize the clamp method of following steps:
A (), for self not having the test specimen to be measured of through hole, utilizes outside punch device, according to upper holding piece through hole 24 upper
Position on grip block 2 or the lower holding piece through hole 14 position on lower grip block 1, beat respectively at the two ends of test specimen to be measured accordingly
Through hole；
(b) for one end of test specimen to be measured, having and upper grip block 2 and the test specimen to be measured of lower grip block 1 respective through hole
It is placed on lower holding piece body base portion upper surface 1232；
C () puts into the fourth of the twelve Earthly Branches 11 of lower holding piece 1 the tenon 21 of upper holding piece 2, and make tenon 21 be close to downwards along the fourth of the twelve Earthly Branches 11 slide,
Until upper holding piece body lower surface 2232 and the upper surface of test specimen to be measured；
The upper holding piece through hole 24 of the upper holding piece 2 of (d) alignment and each corresponding through hole of test specimen to be measured, for each through hole,
Use holding piece through hole 24, the corresponding through hole of test specimen to be measured, lower holding piece through hole 14 in screw bolt passes respectively, and tighten spiral shell
Cap is fixed；
On one end of e testing machine that () is clamped to test machine clamping portion 13 outside；
F (), for the other end of test specimen to be measured, is followed the prescribed rules, repeat the above steps (b)-(e)；
G (), after the two ends of test specimen to be measured are all respectively clamped to the two ends of testing machine, starts test operation.
Upper holding piece 2 and lower holding piece 1 are each provided with 2 rows totally 5 screws, consistency from top to bottom respectively, thus more uniformly divide
Dissipate each bolt strained, upper holding piece body lower surface 2232 and lower holding piece body base portion upper surface 1232 indentation,
All increase the friction of the one side contacted with test specimen to be measured so that be bolted applying pretightning force, after being effectively increased clamping
Frictional force between test specimen to be measured and the clamping device of the present invention.Meanwhile, upper holding piece 2 passes through mortise-tenon joint with lower holding piece,
It is readily disassembled, can be after experiment, it is possible to be easily removed deformation or the testpieces of fracture, it is ensured that specimen holder to be measured steady
Fixed.
Described above to embodiment, makes professional and technical personnel in the field be capable of or uses the present invention.To embodiment
Multiple amendment will be apparent from for those skilled in the art, generic principles defined herein is permissible
Without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will not be limited
In embodiment illustrated herein, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained, all fall within this
In bright protection domain.It is only the preferred embodiment of invention in sum, is not used for limiting the practical range of the present invention.
The most all equivalence changes made according to the content of scope of the present invention patent and modification, all should be the technology category of the present invention.
Claims (10)
1. a clamping device, including: upper holding piece (2) and lower holding piece (1), it is characterised in that
Described upper holding piece (2) includes that holding piece body (22), described upper holding piece body (22) have upper holding piece body
Thickness (2234), is provided with upper holding piece through hole (24), described upper folder on described on the thickness direction of holding piece body (22)
Holding and be provided with tenon (21) on a side of sheet body (22), described tenon (21) is dovetail；
Described lower holding piece (1) includes lower holding piece body (12) and test machine clamping portion (13), described test machine clamping portion
(13) centrage is positioned on the axis of symmetry of described lower holding piece (1), outside described test machine clamping portion (13) is used for being clamped in
In the testing machine in portion, described lower holding piece body (12) farther includes lower holding piece body base portion (123) and lower holding piece
Body elevated portion (124), described lower holding piece body elevated portion (124) is adjacent with described test machine clamping portion (13), described under
There is difference in height (1234), in institute between holding piece body elevated portion upper surface and described lower holding piece body base portion upper surface
State and on the thickness direction of lower holding piece body base portion (123), be provided with lower holding piece through hole (14), at described lower holding piece originally
On the medial surface that body elevated portion (124) is adjacent with described lower holding piece body base portion (123), described lower holding piece body is raised
Portion (124) is provided with the fourth of the twelve Earthly Branches (11), and the degree of depth of the described fourth of the twelve Earthly Branches (11) is equal to described difference in height (1234), and the described fourth of the twelve Earthly Branches (11) are the dovetail fourth of the twelve Earthly Branches；
The described tenon (21) of described upper holding piece (2) can be along the depth direction at the described fourth of the twelve Earthly Branches (11) of described lower holding piece (1)
It is close to slide, thus (2 are placed into described lower holding piece (1) above or described upper holding piece (2) from institute described upper holding piece
State and take out on lower holding piece (1), when described upper holding piece (2) is placed on described lower holding piece (1), described upper holding piece
Through hole (24) can be directed at described lower holding piece through hole (14).
Clamping device the most according to claim 1, it is characterised in that
The quantity at least two of described tenon (21), and along holding piece body (22) side at described tenon (21) place with axle
It is arranged symmetrically with；
The quantity at the described fourth of the twelve Earthly Branches (11) is identical with the quantity of described tenon (21), and with described test machine clamping portion (13) as axis of symmetry
Arrange with axial symmetry；
Each described tenon (21) both corresponds to a described fourth of the twelve Earthly Branches (11).
Clamping device the most according to claim 1 and 2, it is characterised in that observe described lower holding piece (1), the fourth of the twelve Earthly Branches from front
The orthographic projection line of side (111) is 3 ° to 20 ° with the angle of described test machine clamping portion (13) central shaft, the described fourth of the twelve Earthly Branches (11) and institute
State the matching form of tenon (21).
Clamping device the most according to claim 3, it is characterised in that observe described lower holding piece (1), the described fourth of the twelve Earthly Branches from front
The orthographic projection line of side (111) is 6 ° to 12 ° with the angle of described test machine clamping portion (13) central shaft, the described fourth of the twelve Earthly Branches (11) and institute
State the matching form of tenon (21).
Clamping device the most according to claim 1 and 2, it is characterised in that
The quantity of described lower holding piece through hole (14) is at least two, and with described test machine clamping portion (13) be axis of symmetry with
Axial symmetry is arranged；
The quantity of described upper holding piece through hole (24) is identical with the quantity of described lower holding piece through hole (14), each described upper clamping
Sheet through hole (24) both corresponds to a described lower holding piece through hole (14).
Clamping device the most according to claim 5, it is characterised in that
Described lower holding piece through hole (14) at least includes two rows, often arranges described lower holding piece through hole (14) and all presss from both sides with described testing machine
Holding portion (13) is that axis of symmetry is arranged with axial symmetry；
The row of described upper holding piece through hole (24) is identical, often with the row of described lower holding piece through hole (14) and quantity with quantity
Individual described upper holding piece through hole (24) both corresponds to a described lower holding piece through hole (14).
Clamping device the most according to claim 1 and 2, it is characterised in that described upper holding piece body (22) has upper folder
Hold the sheet body thickness (2234) degree of depth less than the described fourth of the twelve Earthly Branches (11), i.e. less than described difference in height (1234).
Clamping device the most according to claim 1 and 2, it is characterised in that upper holding piece body lower surface (2232) and/or
Lower holding piece body base portion upper surface (1232) indentation.
Clamping device the most according to claim 1 and 2, it is characterised in that described upper holding piece (2) and/or lower clamping
Sheet (1) uses Cr12 die steel material to process, and through Quenching Treatment.
10. use the clamp method of any one described clamping device in claim 1-9, comprise the steps:
A (), for self not having the test specimen to be measured of through hole, utilizes outside punch device, exists according to described upper holding piece through hole (24)
Position on described upper grip block (2) or the described lower holding piece through hole (14) position on described lower grip block (1), to be measured
Corresponding through hole is beaten at the two ends of test specimen respectively；
(b) for one end of test specimen to be measured, having and described upper grip block (2) and described lower grip block (1) respective through hole
Test specimen to be measured is placed on lower holding piece body base portion upper surface (1232)；
C () puts into the described fourth of the twelve Earthly Branches (11) of described lower holding piece (1) the described tenon (21) of described upper holding piece (2), and make described
Tenon (21) is close to downwards along the described fourth of the twelve Earthly Branches (11) slide, until upper holding piece body lower surface (2232) and described test specimen to be measured
Upper surface；
D () is directed at the described upper holding piece through hole (24) of described upper holding piece 2 and each corresponding through hole of described test specimen to be measured, for
Each through hole, uses upper holding piece through hole (24) described in screw bolt passes, the corresponding through hole of described test specimen to be measured, described respectively
Lower holding piece through hole (14), and tightening nuts fixed；
On one end of e testing machine that () is clamped to described test machine clamping portion (13) outside；
F () is for the other end of test specimen to be measured, repeat the above steps (b)-(e)；
G (), after the two ends of test specimen to be measured are all respectively clamped to the two ends of testing machine, starts test operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292549.1A CN105842056B (en) | 2016-05-05 | 2016-05-05 | A kind of clamping device and its application method for clamp assay part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292549.1A CN105842056B (en) | 2016-05-05 | 2016-05-05 | A kind of clamping device and its application method for clamp assay part |
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| Publication Number | Publication Date |
|---|---|
| CN105842056A true CN105842056A (en) | 2016-08-10 |
| CN105842056B CN105842056B (en) | 2018-04-03 |
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| CN201610292549.1A Active CN105842056B (en) | 2016-05-05 | 2016-05-05 | A kind of clamping device and its application method for clamp assay part |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152093A (en) * | 2016-12-05 | 2018-06-12 | 波音公司 | The method for preparing the laminate samples of the elongation for ply adhesion test |
| CN111413203A (en) * | 2020-04-27 | 2020-07-14 | 西安建筑科技大学 | Concrete uniaxial tension test fixture and test method |
| CN113125247A (en) * | 2021-03-30 | 2021-07-16 | 中国人民解放军海军工程大学 | Test method for measuring ultimate strength and fatigue of stiffened plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108152093A (en) * | 2016-12-05 | 2018-06-12 | 波音公司 | The method for preparing the laminate samples of the elongation for ply adhesion test |
| CN108152093B (en) * | 2016-12-05 | 2021-05-25 | 波音公司 | Method of preparing elongated laminate samples for interlaminar adhesion testing |
| CN111413203A (en) * | 2020-04-27 | 2020-07-14 | 西安建筑科技大学 | Concrete uniaxial tension test fixture and test method |
| CN113125247A (en) * | 2021-03-30 | 2021-07-16 | 中国人民解放军海军工程大学 | Test method for measuring ultimate strength and fatigue of stiffened plate |
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|---|---|
| CN105842056B (en) | 2018-04-03 |
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