CN206891631U - The clamping device of Blind Hole Method test sample residual stress - Google Patents
The clamping device of Blind Hole Method test sample residual stress Download PDFInfo
- Publication number
- CN206891631U CN206891631U CN201720274398.7U CN201720274398U CN206891631U CN 206891631 U CN206891631 U CN 206891631U CN 201720274398 U CN201720274398 U CN 201720274398U CN 206891631 U CN206891631 U CN 206891631U
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- China
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- fixture block
- top surface
- clamping device
- residual stress
- dynamic
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Abstract
The utility model discloses a kind of clamping device of Blind Hole Method test sample residual stress, including base；Testboard is fixedly installed in above the base, is fixed with the first fixture block and the second fixture block on the testboard, first fixture block is transversely arranged side by side with second fixture block；Dynamic fixture block is slideably positioned between first fixture block and second fixture block, the top surface flush of the top surface of first fixture block and the dynamic fixture block；Screw rod is offseted through second fixture block and with the dynamic fixture block, and the screw rod is threadedly coupled with second fixture block.The clamping device can solve the unstable technical problem low with punching accuracy of the drill process caused by plane rig floor is without the supporting plane of level.
Description
Technical field
The clamp art of test material internal residual stress is the utility model is related to, more particularly to a kind of Blind Hole Method is surveyed
The clamping device for sample residual stress of having a try.
Background technology
Component of machine and component are manufacturing a variety of techniques during processing, such as casting, cutting, weldering
Connect, be heat-treated, can all produce residual stress in the material.The presence of residual stress can reduce workpiece strength, workpiece is existed
The defective workmanship such as be deformed and ftracture during manufacture.During Spontaneous release after fabrication, the presence of residual stress can also make
The size of workpiece changes or makes the reduction of the mechanical properties such as its fatigue strength, so as to have influence on their safety in utilization.
Therefore, the state of residual stress is understood for ensuring that the safety and reliability of workpiece has very important meaning.
The method of Blind Hole Method test cylinder material residual stress is：Bored on the cylinder material sample for having residual stress
One aperture, now the residual stress that has near aperture be released, therefore the residual stress field near porose area changes, now
As long as measure the strain variation amount of the regional area, you can calculate the residual-stress value before drill hole release on cylinder.It is logical
Microscope is crossed to control adjustment drilling accuracy of alignment, sample there can not be vibration, during being punched to sample, it is necessary to flat
Face drill floor level is placed on a plane and fixed, could make it that punching is accurate, ensures that experimental data is effectively accurate.
At present, most of mechanical clamp can be completed to clamp sample, microscope alignment central point, complete the mistake of punching
Journey.Yet with the of different sizes of various sample, shape differs, and is not ensured that during punching measurement is carried out to sample
Sample punching is stable, makes plane rig floor balance on a horizontal plane.Therefore in Blind Hole Method test cylinder material residual stress
During, it is necessary to a kind of cylinder gripper device with preferable clamping effect.
Utility model content
The technical problem that the utility model solves is to provide a kind of clamping device of Blind Hole Method test sample residual stress,
It is unstable low with punching accuracy that the clamping device can solve the drill process caused by plane rig floor is without the supporting plane of level
Technical problem.
In order to solve the above technical problems, technical scheme is used by the utility model：A kind of Blind Hole Method test sample is residual
The clamping device of residue stress, including base；Testboard is fixedly installed in above the base, and the is fixed with the testboard
One fixture block and the second fixture block, first fixture block are transversely arranged side by side with second fixture block；Dynamic fixture block is slideably positioned in institute
State between the first fixture block and second fixture block, the top surface flush of the top surface of first fixture block and the dynamic fixture block；Screw rod
Offseted through second fixture block and with the dynamic fixture block, the screw rod is threadedly coupled with second fixture block.
As an improvement mode, in addition to support frame, support frame as described above be arranged at first fixture block with it is described dynamic
Between fixture block, support frame as described above includes the first triangular platform frame and the second triangular platform frame, the first triangular platform frame and institute
State the first fixture block to be fixedly connected, the top surface flush of the top surface of the first triangular platform frame and first fixture block, described the
Two triangular platform framves are fixedly connected with the dynamic fixture block, the top surface phase of the top surface of the second triangular platform frame and the dynamic fixture block
Concordantly.
As an improvement mode, the testboard is provided with horizontal slide rail, and the dynamic fixture block is slidably mounted on described
Slide rail.
As an improvement mode, the testboard is provided with horizontal chute, and the dynamic fixture block bottom is fixed with
Sliding block, the sliding block are placed in the chute.
As an improvement mode, the both ends of the sliding block are semicircle, and the end of the chute is provided with and the cunning
The semi-circular groove of the matching ends of block.
As an improvement mode, the left side of first fixture block is provided with boss, the top surface of the boss and described the
The top surface flush of one fixture block.
As an improvement mode, the base is provided with anchor (bolt) hole.
As an improvement mode, the dynamic fixture block is connected with the screw flight.
Due to being had the advantages that using above-mentioned technical proposal, the utility model：
Cylindrical specimens are sandwiched between the clamping face of the first fixture block and dynamic fixture block, screw rod is screwed in into right sliding block, screw top
To dynamic fixture block, dynamic fixture block holds out against cylindrical specimens on the first fixture block, makes cylindrical specimens fixation, ensures cylinder examination
Sample can remain stationary as during drilling, greatly improve the precision of drilling, reduce the error of measurement.The clamping device can be
Plane rig floor provides a smooth horizontal support face, increase plane rig floor triangular support base and supporting plane contact area, convenient
Microscope finds punching center accurately, also enhances the stability of drill process, the device convenient disassembly, easily operated, and processing is simple,
It is easily carried.
Due to also including support frame, support frame as described above is arranged between first fixture block and the dynamic fixture block, the branch
Support includes the first triangular platform frame and the second triangular platform frame, and the first triangular platform frame is fixed with first fixture block to be connected
Connect, the top surface flush of the top surface of the first triangular platform frame and first fixture block, the second triangular platform frame and institute
State fixture block to be fixedly connected, the top surface flush of the top surface of the second triangular platform frame and the dynamic fixture block can be according to cylinder
The size of body selects the triangle fixed platform frame of different sizes, to adjust the width of support platform.
Because the testboard is provided with horizontal chute, the dynamic fixture block bottom is fixed with sliding block, and the sliding block is put
In in the chute, the structure of the structure is simple, is easily installed and cleans.
Because the left side of first fixture block is provided with boss, the top surface of the boss is equal with the top surface of first fixture block
Together, boss is set to make microscopical Working rack it is determined that having sufficient position during operating point.
Because the base is provided with anchor (bolt) hole, by anchor (bolt) hole mounting foot bolt can make entirely to press from both sides
Tool is stablized motionless during drilling, improves the precision of drilling.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the base of the utility model embodiment one and the installation diagram of testboard；
Fig. 3 is the structural representation of the dynamic fixture block of the utility model embodiment one；
Fig. 4 is the structural representation of the first triangular platform frame of the utility model embodiment one；
In figure, 1- bases, 101- chutes, 102- anchor (bolt) holes, 2- testboards, the fixture blocks of 3- first, the fixture blocks of 4- second, 5-
Dynamic fixture block, 51- sliding blocks, 6- boss, 7- screw rods, 8- triangular support bases, 91- the first triangular platform framves, 92- the second triangular platform framves.
Embodiment
Embodiment one
It is jointly shown with reference to Fig. 1 and Fig. 2, a kind of clamping device of Blind Hole Method test sample residual stress, including base 1,
Base 1 is provided with anchor (bolt) hole 102, by anchor (bolt) hole 102 mounting foot bolt whole fixture can be made to drill
During stablize motionless, improve the precision of drilling.Further, it is also possible to the surrounding in base 1 is taken to apply certain pressure
It is motionless that measure stablizes whole fixture.
The top surface of testboard 2 is machined with the groove of two transverse directions, tapped through hole is respectively equipped with groove, by leading to through screw thread
Testboard 2 is fixedly installed in the top of base 1 by the threaded fastener in hole, and the first fixture block 3 and the second folder are fixed with testboard 2
Block 4, the first fixture block 3 are transversely arranged side by side with the second fixture block 4.The left side of first fixture block 3 is provided with boss 6, the top surface of boss 6
With the top surface flush of the first fixture block 3.Boss 6 is set to make microscopical Working rack it is determined that having sufficient position during operating point
Put.In the present embodiment, testboard 2, the first fixture block 3, the second fixture block 4 and boss 6 are set to one.
Jointly shown with reference to Fig. 1 to Fig. 3, dynamic fixture block 5 is slideably positioned between the first fixture block 3 and the second fixture block 4, moves fixture block
5 and first fixture block 3 be respectively equipped with practise physiognomy to clamping face, the top surface flush of the top surface of the first fixture block 3 and dynamic fixture block 5.Test
Platform 2 is provided with horizontal chute 101, and the dynamic bottom of fixture block 5 is fixed with sliding block 51, and the both ends of sliding block 51 is semicircle, sliding block 51
It is placed in chute 101.The both ends of chute 101 are respectively equipped with the semi-circular groove with the matching ends of sliding block 51.Screw rod 7 runs through
Second fixture block 4 and offseted with dynamic fixture block 5, screw rod 7 is threadedly coupled with the second fixture block 4.In the present embodiment, fixture block 5 and screw rod are moved
7 threaded connections.
It is jointly shown with reference to Fig. 1 and Fig. 4, it is provided with support frame between the first fixture block 3 and dynamic fixture block 5, support frame includes the
The frame of one triangular platform frame 91 and the frame of the second triangular platform frame 92, the frame of the first triangular platform frame 91 and the first fixture block 3 are tight by screw thread
Firmware is fixedly connected, the top surface flush of the top surface of the frame of the first triangular platform frame 91 and the first fixture block 3, the second triangular platform frame 92
Frame is fixedly connected by threaded fastener with dynamic fixture block 5, and the top surface of the frame of the second triangular platform frame 92 is equal with the top surface of dynamic fixture block 5
Together.The frame of the first triangular platform frame 91 and the frame of the second triangular platform frame 92 is allowed to bear bigger pressure using the stability principle of triangle
Power.Triangular platform frame can select the model of different size length scale according to the different size of experiment cylinder, right
Compare in diameter for the sample of small cylinder, when not needing triangular platform frame, I am with disassembled and assembled freely, to meet experimentation
Demand.
Application method of the present utility model is：
Cylindrical specimens to be tested are sandwiched between the first fixture block 3 and dynamic fixture block 5, screw rod 7 is screwed in into the second folder manually
Block 4, screw rod 7 promote dynamic fixture block 5 to slide laterally, cylinder is sandwiched between the first fixture block and dynamic fixture block, cylinder is by water
Square to pressure remain stationary as, microscope A-frame will be maintained on horizontal working face.It will be protected before test every time
The neat and tidy inside the groove of testboard 2 is held, dynamic fixture block 5 can be dismantled freely, and convenient cleaned to chute 101 lubricates, and makes it
Influence of the impurity to experimentation is reduced, improves the accuracy of experimental data.
The grip device can not only effectively clamp sample, and plane rig floor can be given to provide horizontal supporting plane,
Increase plane rig floor triangular support base 8 and supporting plane contact area, facilitate microscope to find punching center accurately, also enhance and punched
The stability of journey.
Embodiment two
The present embodiment and the structure of embodiment one are essentially identical, and difference is, testboard 2 is provided with horizontal slide rail,
Dynamic fixture block 5 is slidably mounted on slide rail.
Claims (8)
- A kind of 1. clamping device of Blind Hole Method test sample residual stress, it is characterised in that including：Base；Testboard, the testboard are fixedly installed in above the base, and the first fixture block and the are fixed with the testboard Two fixture blocks, first fixture block are transversely arranged side by side with second fixture block；Dynamic fixture block, the dynamic fixture block are slideably positioned between first fixture block and second fixture block, first fixture block The top surface flush of top surface and the dynamic fixture block；Screw rod, the screw rod offset through second fixture block and with the dynamic fixture block, the screw rod and second fixture block Threaded connection.
- 2. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 1, it is characterised in that also include support Frame, support frame as described above are arranged between first fixture block and the dynamic fixture block, and support frame as described above includes the first triangular platform frame With the second triangular platform frame, the first triangular platform frame is fixedly connected with first fixture block, the first triangular platform frame Top surface and first fixture block top surface flush, the second triangular platform frame is fixedly connected with the dynamic fixture block, described The top surface flush of the top surface of second triangular platform frame and the dynamic fixture block.
- 3. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 1, it is characterised in that the testboard Slide rail provided with transverse direction, the dynamic fixture block are slidably mounted on the slide rail.
- 4. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 1, it is characterised in that the testboard Horizontal chute is provided with, the dynamic fixture block bottom is fixed with sliding block, and the sliding block is placed in the chute.
- 5. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 4, it is characterised in that the sliding block Both ends are semicircle, and the end of the chute is provided with the semi-circular groove with the matching ends of the sliding block.
- 6. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 4, it is characterised in that first folder The left side of block is provided with boss, the top surface flush of the top surface of the boss and first fixture block.
- 7. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 3, it is characterised in that the base is set There is anchor (bolt) hole.
- 8. the clamping device of Blind Hole Method test sample residual stress as claimed in claim 1, it is characterised in that the dynamic fixture block It is connected with the screw flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274398.7U CN206891631U (en) | 2017-03-21 | 2017-03-21 | The clamping device of Blind Hole Method test sample residual stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274398.7U CN206891631U (en) | 2017-03-21 | 2017-03-21 | The clamping device of Blind Hole Method test sample residual stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206891631U true CN206891631U (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720274398.7U Expired - Fee Related CN206891631U (en) | 2017-03-21 | 2017-03-21 | The clamping device of Blind Hole Method test sample residual stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206891631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063538A (en) * | 2017-03-21 | 2017-08-18 | 广西大学 | The clamping device of Blind Hole Method test sample residual stress |
| CN110455441A (en) * | 2019-07-24 | 2019-11-15 | 河海大学 | A kind of external tendon prestressing force testing auxiliary device |
-
2017
- 2017-03-21 CN CN201720274398.7U patent/CN206891631U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063538A (en) * | 2017-03-21 | 2017-08-18 | 广西大学 | The clamping device of Blind Hole Method test sample residual stress |
| CN110455441A (en) * | 2019-07-24 | 2019-11-15 | 河海大学 | A kind of external tendon prestressing force testing auxiliary device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |