CN204855050U - Matrix indentation method distributing of stress testing arrangement - Google Patents
Matrix indentation method distributing of stress testing arrangement Download PDFInfo
- Publication number
- CN204855050U CN204855050U CN201520651029.6U CN201520651029U CN204855050U CN 204855050 U CN204855050 U CN 204855050U CN 201520651029 U CN201520651029 U CN 201520651029U CN 204855050 U CN204855050 U CN 204855050U
- Authority
- CN
- China
- Prior art keywords
- shell
- sub
- indentation method
- proving installation
- matrix form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a matrix indentation method distributing of stress testing arrangement, including the frame, be equipped with a plurality of sub - indentation manufacturing installation of arranging according to a b array in the frame, wherein a, b are for being greater than 1 positive integer, sub - indentation manufacturing installation includes vertical rack -mounted shell, is equipped with in the shell to strike the body and strike the body down rather than going up of sliding connection, goes up strike body top surface and is equipped with the out handle of shell roof portion, strikes the one end of personally experiencing sth. Part of the body down and is equipped with the steel ball and wears out bottom portion. The sub - indentation manufacturing installation that a plurality of intervals are even unanimous, its each strike point keeps the unanimity with each locating hole of array formula foil gage, and fundamentally has guaranteed the accurate nature of location, the design that the body was struck to upper and lower disconnect -type can make the indentation manufacture process more stable, when carrying out the test of multiple spot distributing of stress, the utility model discloses only need once polish, paste, positioning process, experimental efficiency improves by a wide margin.
Description
Technical field
The utility model relates to a kind of testing apparatus, specifically a kind of matrix form indentation method stress distribution proving installation.
Background technology
The residual stress problems of metal material is present in the every aspect in social life and commercial production, and greatly to the military field concerning national security, the little daily living article to common people, therefore more and more receives the concern of numerous scientific workers.In the industrial production, residual stress problems is given prominence to very much.Under the acting in conjunction of working temperature, actuating medium and unrelieved stress, product or workpiece can reduce intensity on the one hand, make workpiece produce the defective workmanships such as distortion and cracking during fabrication; Can in Spontaneous release process after fabrication, the size of workpiece be changed again on the other hand, or its mechanical property such as fatigue strength, stress corrosion is reduced.Therefore, the research of residual stress measurement technology, for guaranteeing that the safety and reliability of product quality or workpiece has very important meaning.
Indentation method is a kind of conventional residual stress test method, and concerned countries testing standard is GB24179-2009.Place the less hardened steel ball of diameter at workpiece tested point center, apply ballistic work W or static pressure P by the method for impact or static pressure, make it produce a domed impression in workpiece face, around impression, produce certain stress field.In this stress field, the stress of certain point is only relevant with diameter D, the static pressure P of steel ball or the distance R of impact absorbing energy W and this some distance centre of force.Stress field F1 will affect original stress field F0 in steel plate, cause the redistribution of stress field, and in elastic region, produce the superposition of stress, form stress field F2.Stress field F2 forming process will cause certain strain increment around impression, this strain increment and initial stress state closely related.Therefore can set up the mutual relationship of primary stress field F0 and strain increment, be determined the unrelieved stress in steel plate by the measurement of impression forming process strain increment, this is the basic concept of indentation method.
According to government test standard, the indentation method stress measurement device recommended in GB24179-2009, in actual measurement process, first centering process needs repeatedly traverse measuring device to carry out initial adjustment, to ensure that foil gauge is in the center position of device.Then, need repeatedly to finely tune the centring ring making pressure head accurately align foil gauge.And the insufficient light under the covering of measurement mechanism of the centring ring on conventional foil gauge, make location very difficult.Even if irradiate foil gauge from the side with electric torch, also can only make a slice light on foil gauge, the resolution on centring ring and foil gauge is lower, still more difficult when positioning with microscope.
In addition, when carrying out the test of product stress distribution, the some position of General Requirements test is more, if adopt traditional conventional indentation equipment to measure, then needs to position one by one each some position, and polishing, pastes foil gauge, welding, all multiple operation such as test.Test process is loaded down with trivial details, inefficiency, and the consistance of the location accuracy between each test point and experiment pre-treatment is all difficult to ensure, the degree of accuracy of final stress distribution result is had a greatly reduced quality.
Summary of the invention
The purpose of this utility model is to design a kind of under the prerequisite ensureing measuring accuracy, significantly can increasing work efficiency and accuracy, the matrix form indentation method stress distribution proving installation solving the problems such as in-situ stresses test position fix difficulty, pressure head stress influence.
For achieving the above object, the utility model design matrix form indentation method stress distribution proving installation, comprise frame, its special character is: described frame is provided with the multiple sub-impression producing device by a × b arranged in arrays, wherein a, b be greater than 1 positive integer; Described sub-impression producing device comprises vertical rack-mounted shell, the upper strike body and lower strike body that are slidably connected with its inwall is provided with in described shell, described upper strike body end face is provided with the handle passing cover top portion, and one end of described lower strike body passes described outer casing bottom and is provided with steel ball.
Further, the space D x of arbitrary neighborhood two row impression producing device is equal, and the space D y that arbitrary neighborhood two arranges sub-impression producing device is equal.
Again further, described Dx=fDy, wherein f gets 0.25 or 0.5 or 1.X-direction is attached most importance to stress test direction (such as steel roll to).When X-direction stress degree of attentiveness is far above Y-direction, f gets 0.25, and X-direction stress is same with Y-direction stress gets f=1 when being concerned about.
Further, described frame upper surface is provided with locating piece, and it is on outer wall that described locating piece is set in described shell.Like this, by ensureing the verticality of each sub-impression producing device to the finishing of locating piece endoporus.
Further, described sub-impression producing device also comprises safety plug; Described handle neck is provided with the pin-and-hole of multiple radial direction, and multiple described pin-and-hole is axial arranged along handle; Described safety plug can insert in described pin-and-hole, like this, is controlled the hitting power of upper strike body by the pin-and-hole of safety plug insertion differing heights.
Further, be provided with multiple spring be arranged symmetrically with in described shell, described spring one end abuts with cover top portion, and the described spring other end abuts with described upper strike body end face.Like this, the hitting power of upper strike body can be increased by Compress Spring.
Further, described outer casing underpart outer wall is provided with magnetic base, and described steel ball passes described magnetic base bottom surface.Like this, be adsorbed on sample by magnetic base, not only play a supporting role, and enhance the stability of strike.
The beneficial effects of the utility model are: the sub-impression producing device of multiple spacing uniformity, and each pilot hole of its each striking point and array type foil gauge is consistent, and fundamentally ensure that the accuracy of location; The array way that foil gauge also can adopt the sub-impression of the utility model to be manufactured on, therefore the test pre-treatment of each measured point is completely the same, and measuring accuracy improves, and eliminates traverse measuring device repeatedly, the tedious steps of repeatedly focusing; The design that upper and lower separate type hits body can make impression manufacture process more stable; When carrying out the test of multiple spot stress distribution, the utility model only need once be polished, paste, positioning process, and conventional efficient significantly improves.
Accompanying drawing explanation
Fig. 1 is a kind of main TV structure schematic diagram of matrix form indentation method stress distribution proving installation;
The partial top structural representation that Fig. 2 is proving installation shown in Fig. 1;
Fig. 3 is the structural representation of the neutron of proving installation shown in Fig. 1 impression producing device;
Fig. 4 is the left TV structure schematic diagram of Fig. 3;
In figure: frame 1, sub-impression producing device 2, shell 3, upper strike body 4, lower strike body 5, handle 6, steel ball 7, spring 8, safety plug 9, pin-and-hole 10, magnetic base 11, locating piece 12.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Matrix form indentation method stress distribution proving installation as depicted in figs. 1 and 2, comprises frame 1, and described frame 1 is provided with the multiple sub-impression producing device 2 by a × b arranged in arrays, wherein a, b be greater than 1 positive integer; The space D x of arbitrary neighborhood two row impression producing device 2 is equal, and the space D y that arbitrary neighborhood two arranges sub-impression producing device 2 is equal, and preferably, described Dx=fDy, wherein f gets 0.25 or 0.5 or 1.Wherein, X-direction is attached most importance to stress test direction (such as steel roll to), and when X-direction stress degree of attentiveness is far above Y-direction, f gets 0.25, and X-direction stress is same with Y-direction stress gets f=1 when being concerned about.
As shown in Figure 1, Figure 3 and Figure 4, described sub-impression producing device 2 comprises and is vertically arranged on shell 3 in frame 1, the upper strike body 4 and lower strike body 5 that are slidably connected with its inwall is provided with in described shell 3, described upper strike body 4 end face is provided with the handle 6 passing shell 3 top, and one end of described lower strike body 5 to pass bottom described shell 3 and is provided with steel ball 7; Preferably, be provided with multiple spring 8 be arranged symmetrically with in described shell 3, in this example, be two, described spring 8 one end abuts with shell 3 top, described spring 8 other end abuts with described upper strike body 4 end face, like this, can be increased the hitting power of upper strike body by Compress Spring; Described sub-impression producing device 2 also comprises safety plug 9; Described handle 6 neck is provided with the pin-and-hole 10 of multiple radial direction, multiple described pin-and-hole 10 is axial arranged along handle 6, in this example, be provided with three pin-and-holes 10, correspondingly from top to bottom hitting dynamics be divided into one-level, secondary and three grades, one-level hitting dynamics is minimum, three grades of hitting dynamics are maximum, according to the actual needs of sample, can be inserted by described safety plug 9 and represent in the pin-and-hole 10 of different stage, like this, the pin-and-hole 10 inserting differing heights by safety plug 9 controls the hitting power of upper strike body.
Further, described shell 3 bottom outer wall is provided with magnetic base 11, described steel ball 7 passes described magnetic base 11 bottom surface, the magnetic force of magnetic base 11 carries out switch by knob, the magnetic force of magnetic base 11 is opened again after having located, each sub-impression producing device 2 is adsorbed on position corresponding to sample, not only plays a supporting role, and enhance the stability of strike.
Again as shown in Figure 1, preferably, described frame 1 upper surface is provided with locating piece 12, and described locating piece 12 is set on the outer wall of described shell 3, like this, by ensureing the verticality of each sub-impression producing device 2 to the finishing of locating piece 12 endoporus.
Claims (7)
1. a matrix form indentation method stress distribution proving installation, comprise frame (1), it is characterized in that: described frame (1) is provided with the multiple sub-impression producing device (2) by a × b arranged in arrays, wherein a, b be greater than 1 positive integer; Described sub-impression producing device (2) comprises the shell (3) be vertically arranged in frame (1), the upper strike body (4) and lower strike body (5) that are slidably connected with described shell (3) inwall is provided with in described shell (3), described upper strike body (4) end face is provided with the handle (6) passing shell (3) top, and one end of described lower strike body (5) passes described shell (3) bottom and is provided with steel ball (7).
2. matrix form indentation method stress distribution proving installation according to claim 1, it is characterized in that: the space D x of arbitrary neighborhood two row impression producing device (2) is equal, the space D y that arbitrary neighborhood two arranges sub-impression producing device (2) is equal.
3. matrix form indentation method stress distribution proving installation according to claim 2, it is characterized in that: described Dx=fDy, wherein f gets 0.25 or 0.5 or 1.
4. matrix form indentation method stress distribution proving installation according to claim 1, it is characterized in that: described frame (1) upper surface is provided with locating piece (12), described locating piece (12) is set on the outer wall of described shell (3).
5. matrix form indentation method stress distribution proving installation according to claim 1, is characterized in that: described sub-impression producing device (2) also comprises safety plug (9); Described handle (6) neck is provided with the pin-and-hole (10) of multiple radial direction, and multiple described pin-and-hole (10) is axial arranged along handle (6); Described safety plug (9) can insert in described pin-and-hole (10).
6. matrix form indentation method stress distribution proving installation according to claim 1, it is characterized in that: in described shell (3), be provided with multiple spring (8) be arranged symmetrically with, described spring (8) one end abuts with shell (3) top, and described spring (8) other end abuts with described upper strike body (4) end face.
7. matrix form indentation method stress distribution proving installation according to claim 1, it is characterized in that: described shell (3) bottom outer wall is provided with magnetic base (11), and described steel ball (7) passes described magnetic base (11) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651029.6U CN204855050U (en) | 2015-08-26 | 2015-08-26 | Matrix indentation method distributing of stress testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651029.6U CN204855050U (en) | 2015-08-26 | 2015-08-26 | Matrix indentation method distributing of stress testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855050U true CN204855050U (en) | 2015-12-09 |
Family
ID=54745589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520651029.6U Active CN204855050U (en) | 2015-08-26 | 2015-08-26 | Matrix indentation method distributing of stress testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204855050U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679852A (en) * | 2015-11-09 | 2017-05-17 | 盐城工学院 | Surface layer internal stress measurement method based on microhardness indentation distance change |
| CN107765045A (en) * | 2017-11-15 | 2018-03-06 | 中国工程物理研究院电子工程研究所 | The electronic product safety instrumentation of redundancy insurance control |
| CN109612859A (en) * | 2019-01-18 | 2019-04-12 | 四川大学 | Microscopic units abrasion expression measuring device and detection method |
| CN109870258A (en) * | 2019-01-28 | 2019-06-11 | 浙江工业大学 | A kind of instrumentation spherical shape indentation detection method of any residual stress of plane |
-
2015
- 2015-08-26 CN CN201520651029.6U patent/CN204855050U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679852A (en) * | 2015-11-09 | 2017-05-17 | 盐城工学院 | Surface layer internal stress measurement method based on microhardness indentation distance change |
| CN106679852B (en) * | 2015-11-09 | 2019-02-22 | 盐城工学院 | A kind of surface layer internal stress measuring method based on microhardness impression distance change |
| CN107765045A (en) * | 2017-11-15 | 2018-03-06 | 中国工程物理研究院电子工程研究所 | The electronic product safety instrumentation of redundancy insurance control |
| CN107765045B (en) * | 2017-11-15 | 2023-06-23 | 中国工程物理研究院电子工程研究所 | Electronic product safety testing device with redundant safety control |
| CN109612859A (en) * | 2019-01-18 | 2019-04-12 | 四川大学 | Microscopic units abrasion expression measuring device and detection method |
| CN109612859B (en) * | 2019-01-18 | 2024-02-27 | 四川大学 | Microcosmic unit abrasiveness expression method measuring device and detecting method |
| CN109870258A (en) * | 2019-01-28 | 2019-06-11 | 浙江工业大学 | A kind of instrumentation spherical shape indentation detection method of any residual stress of plane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204855050U (en) | Matrix indentation method distributing of stress testing arrangement | |
| CN103454061B (en) | A kind of pilot system and method for testing manufacturing sheet metal given size impact dent | |
| CN105458340B (en) | A kind of localization punch for being used to measure non-magnetic metal plate residual stress | |
| CN103075950A (en) | Device and method for measuring planeness of pole lug | |
| CN203744926U (en) | Flatness detection equipment for currency detector foundation board | |
| CN203117141U (en) | Sample rack for cone calorimeter | |
| CN103225996A (en) | Coaxiality measurer of mounting hole of cylinder cover fuel injector and inner circle of baseplate seam allowance | |
| CN207387622U (en) | A kind of original gauge length marker of adjustable spacing type tension test | |
| CN208206702U (en) | A kind of falling ball impact test machine | |
| CN203519443U (en) | Hardness tester for mobile phone glass | |
| CN102338627A (en) | Instrument for measuring height of large bearing, height of ring and variation | |
| CN202453263U (en) | Three-point bending stress tester for thermal shock resistance tests of refractory products | |
| CN206019519U (en) | A kind of cubing | |
| CN104949889A (en) | Whole flexural testing method and device of ultrathin grinding wheel | |
| CN104070108A (en) | Forming parameter-adjustable rebound measuring mold of high-strength steels and test method thereof | |
| CN204085837U (en) | A kind of device extending impact tup serviceable life | |
| CN101514954B (en) | Bond strength measuring apparatus | |
| CN209840985U (en) | Dry-type cylinder jacket anticollision type external diameter pneumatic detection device | |
| CN105783669A (en) | Measurement device for average corrosion depth in X-ray stress testing | |
| CN102506629B (en) | Gas exhaust tube flange silk hole and face size cubing | |
| CN207423678U (en) | A kind of automotive sheet Counterboring apparatus | |
| CN211426048U (en) | Chain plate toughness detection device | |
| CN202255183U (en) | Detection tool of small support on right side of middle part of automobile crossbeam | |
| CN207019567U (en) | Part comprehensive check tool | |
| CN114001096B (en) | High-precision axial play adjusting method for paired deep groove ball bearings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170804 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 15 Wuchang, Wuhan Friendship Avenue, No. 999, block A, layer (Wuhan Iron and steel science and technology innovation department), No. 430080, Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right |