CN206430840U - The foil gauge lead tested for boring method in residual stress is connected device - Google Patents
The foil gauge lead tested for boring method in residual stress is connected device Download PDFInfo
- Publication number
- CN206430840U CN206430840U CN201621425805.1U CN201621425805U CN206430840U CN 206430840 U CN206430840 U CN 206430840U CN 201621425805 U CN201621425805 U CN 201621425805U CN 206430840 U CN206430840 U CN 206430840U
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- cover plate
- foil gauge
- base contacts
- cover
- boring method
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Abstract
The utility model belongs to material analysis testing field, more particularly to a kind of foil gauge lead tested for boring method in residual stress is connected device, the device includes cover plate and pedestal, cover plate includes cover panels, three cover plate contacts, three cover plate binding posts, pedestal includes face plate of foundation, three base contacts, three fixed bolts, cover plate contact is connected one by one with cover plate binding post, cover panels are provided with and one-to-one three through holes of fixed bolt, cover plate contact is with being correspondingly arranged one connecting terminal of composition above and below base contacts, connecting terminal is respectively arranged at three foil gauge positions of triaxial strain flower, two leads for connecting each foil gauge, lead connects deformeter by the cover plate binding post.The mode that the utility model is bolted instead of traditional manual welding, and apparatus structure is simple and reliable, shorten the boring method testing time, operating efficiency be improved, while eliminating the operational risk in welding process.
Description
Technical field
The utility model belongs to material analysis testing field, more particularly to a kind of boring method that is used for is tested in residual stress
Foil gauge lead is connected device.
Background technology
At present, boring method is extensive as development time in residual stress test is most long, theoretical most a kind of ripe method
During the residual stress test of metal material.It is international to have relevant criterion (ASTM E837-81 and CB with the country
Specified in more detail 3395-1992) has been carried out to the test process of boring method.
The general principle of boring method test is that its depth and diameter are 2mm left by boring an aperture in material surface
The right side, it is different and provided according to computational methods, drill after terminating by strain measurement its strain variation posted in advance, from
And the relation passed through between the strain relief and residual stress of theory deduction calculates residual stress.The most frequently used foil gauge sets position
It is being in 0 °, 90 °, 225 ° of three location arrangements foil gauges with the X-direction of test to be, foil gauge is connected with wire by lead, led
Line is connected with deformeter, so as to realize strain value reading.
In traditional boring method test residual stress method, foil gauge lead passes through on the contact in retainer ring with wire
Soldering is attached with fixing, and it has following a few point defects：
1st, this method complex operation, it is time-consuming very long, cause the boring method testing time longer；
2nd, operated at relatively high temperatures using electric iron during soldering, certain risk is constituted to operating personnel.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of foil gauge lead tested for boring method in residual stress
Be connected device, and the device includes cover plate and pedestal, and the cover plate includes cover panels, three cover plate contacts, three cover plates
Binding post, the pedestal includes face plate of foundation, three base contacts, three fixed bolts；The cover plate contact and the cover plate
Binding post is connected one by one, the cover panels be provided with one-to-one three through holes of fixed bolt, the cover plate contact with
One connecting terminal of composition is correspondingly arranged above and below the base contacts, the connecting terminal is respectively arranged at the three of triaxial strain flower
Individual foil gauge position, two leads for connecting each foil gauge, the lead is connected by the cover plate binding post and strained
Instrument.
Further, three foil gauges be respectively arranged at the triaxial strain flower and measurement direction in 0 °, 90 °,
At 225 °.The fixed bolt is fixed after passing through the corresponding through hole with nut.Described device is tactile except cover plate contact and pedestal
The outer portion of point is made using insulating materials, and the cover plate contact, the base contacts are made using conductive material, conduction material
Material is preferably high conductivity material.
The utility model is consolidated suitable for the connection of strain rosette lead and connecting wire during boring method residual stress test
Fixed, the mode being bolted instead of traditional manual welding process, and apparatus structure is simple and reliable, realize what is be reliably connected
The boring method testing time is shortened simultaneously, operating efficiency is improved, while eliminating the operational risk in welding process.
Brief description of the drawings
Fig. 1 is that the utility model foil gauge lead is connected the schematic diagram of device
Fig. 2 is that the utility model foil gauge lead is connected the front view of device
Embodiment
Below in conjunction with the accompanying drawings, embodiment is elaborated.
As depicted in figs. 1 and 2, the utility model is mainly made up of cover plate 1, pedestal 2, cover plate 1 include cover panels, three
Cover plate contact 1.1, three cover plate binding posts 1.2, pedestal 2 include face plate of foundation, three base contacts 2.2, three fixed bolts
2.1, have in cover panels with one-to-one three through holes of fixed bolt, cover plate contact 1.1 is corresponded with base contacts 2.2
Set.
Three contact positions are respectively distributed to three foil gauge correspondence positions that triaxial strain spends 0 °, 90 °, 225 °, operation
When, first pedestal 2 is fixed on sample, in base contacts 2.2, bottom portion of groove is conducting metal material, and remaining position is insulation
Material, the insulating properties between two leads to ensure same foil gauge, by the lead placement of foil gauge in contact groove.
Then, cover plate 1 is passed through into the bonnet of correspondence stud 2.1 on pedestal through correspondence through hole, it is ensured that cover plate contact 1.1 exists
No-float and lead is compressed in base contacts 2.2, cover plate contact 1.1 is joined directly together with cover plate binding post 1.2, then by wiring
Post is connected by wire with deformeter, is completed lead and is fixed with being connected.
Above-described embodiment is only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (4)
- A kind of device 1. foil gauge lead tested for boring method in residual stress is connected, it is characterised in that the dress Put including cover plate and pedestal, the cover plate includes cover panels, three cover plate contacts, three cover plate binding posts, the pedestal bag Include face plate of foundation, three base contacts, three fixed bolts；The cover plate contact is connected one by one with the cover plate binding post, and the cover panels are provided with to be corresponded with fixed bolt Three through holes, be correspondingly arranged one connecting terminal of composition above and below the cover plate contact and the base contacts, the connection is touched Point is respectively arranged at three foil gauge positions of triaxial strain flower, two leads for connecting each foil gauge, the lead Deformeter is connected by the cover plate binding post.
- 2. device according to claim 1, it is characterised in that three foil gauges are respectively arranged at the triaxial strain Flower is with measurement direction at 0 °, 90 °, 225 °.
- 3. device according to claim 1, it is characterised in that the fixed bolt uses spiral shell after passing through the corresponding through hole Cap is fixed.
- 4. device according to claim 1, it is characterised in that described device is except cover plate contact and the outer portion of base contacts Made using insulating materials, the cover plate contact, the base contacts are made using conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425805.1U CN206430840U (en) | 2016-12-23 | 2016-12-23 | The foil gauge lead tested for boring method in residual stress is connected device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425805.1U CN206430840U (en) | 2016-12-23 | 2016-12-23 | The foil gauge lead tested for boring method in residual stress is connected device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206430840U true CN206430840U (en) | 2017-08-22 |
Family
ID=59587557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425805.1U Active CN206430840U (en) | 2016-12-23 | 2016-12-23 | The foil gauge lead tested for boring method in residual stress is connected device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206430840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243522A (en) * | 2019-07-08 | 2019-09-17 | 桂林电子科技大学 | A kind of measuring system and method for solder joint reflow welding postwelding residual stress |
| CN114441079A (en) * | 2021-12-24 | 2022-05-06 | 浙江工业大学 | Residual stress measuring device based on blind hole method |
-
2016
- 2016-12-23 CN CN201621425805.1U patent/CN206430840U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243522A (en) * | 2019-07-08 | 2019-09-17 | 桂林电子科技大学 | A kind of measuring system and method for solder joint reflow welding postwelding residual stress |
| CN114441079A (en) * | 2021-12-24 | 2022-05-06 | 浙江工业大学 | Residual stress measuring device based on blind hole method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190926 Address after: 101407 Beijing city Huairou District Yanqi Economic Development Zone Branch Hing Street No. 11 Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: 100088 Beijing city Xicheng District Xinjiekou Avenue No. 2 Patentee before: General Research Institute for Nonferrous Metals |