CN105458340B - A kind of localization punch for being used to measure non-magnetic metal plate residual stress - Google Patents
A kind of localization punch for being used to measure non-magnetic metal plate residual stress Download PDFInfo
- Publication number
- CN105458340B CN105458340B CN201510929855.7A CN201510929855A CN105458340B CN 105458340 B CN105458340 B CN 105458340B CN 201510929855 A CN201510929855 A CN 201510929855A CN 105458340 B CN105458340 B CN 105458340B
- Authority
- CN
- China
- Prior art keywords
- straight
- residual stress
- metal plate
- expansion link
- magnetic metal
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
Abstract
The invention discloses a kind of localization punch for being used to measure non-magnetic metal plate residual stress, it is related to the field for measurement remnant stress equipment, including fixed round platform, centralising device and perforating mechanism, pass through the position with the multivariant regulation perforating mechanism of USB digital microscopes, focal length is adjusted, makes the centering strain rosette raster center that USB digital microscopes center is pure and fresh, the punch position of workpiece is accurately positioned.After positioning successfully, USB digital microscopes are removed, drilling rod is loaded onto and is punched.It is used for the localization punch of measurement remnant stress using the present invention, the residual stress numerical value of measurement is accurate, and workpiece is damaged small.The present invention is applicable not only to smooth sheet metal, can also be used for the sheet metal of concave-convex curved surface, is measured available for laboratory, production scene.
Description
Technical field
It is more particularly to a kind of thin for measuring nonmagnetic metal the present invention relates to the field for measurement remnant stress equipment
The localization punch of plate residual stress.
Background technology
In recent years, with national economy fast development and living standards of the people continuous improvement, stainless steel agricultural,
It is used widely in industry, national defence and daily life.Some the modern industrial sector such as automobile, tank, high-end handsets, household electrical appliance
Deng fast development, not only have to the demand of stainless steel and be substantially improved, and strict requirements are proposed to shape quality.Cause
This, the production technology of advanced cold-rolling stainless steel is just particularly important, and present 90% stainless steel is by 20 roller Senghi rice
That mill milling.Because stainless-steel cold-rolling resistance of deformation is larger, about 2 times of carbon steel.When rolling is completed, Thin Stainless Steel
Intralamellar part contains substantial amounts of residual stress.
Residual stress is to be present in component inside and in whole component in the case of the effect of any service load is not present
It is internal.The presence of residual stress by influence stainless sheet steel forming property and product final strip shape quality, residual stress
Relaxation influences the stability of plate size.Detection for residual stress is just particularly important.Measurement remnant strain method
Mainly include punch method, magnetic survey method and x-ray method.And for stainless sheet steel, punch method is best from through hole method.Through hole
Method residual stress detection method is exactly to stick strain rosette at the tested position of workpiece, by being made a call in strain rosette stop position in one
1.5mm or so small through hole causes the release of residual stress, meanwhile, this release is measured and led to by residual stress test instrument
Cross the residual stress size and Orientation that the position is calculated.It is currently used for the punch device used during measurement remnant stress, one
As be to be positioned using magnetic support, so can only measure can magnetic adsorptive material residual stress, and some stainless steels etc. are non-magnetic
Property sheet metal can not be adsorbed on workpiece without magnetic, magnetic support, it is impossible to realize positional punch.
The content of the invention
It is an object of the invention to provide a kind of localization punch for measurement remnant stress, so as to non magnetic in measurement
The accurate position for determining punching during sheet-metal work residual stress.Localization machine of the present invention is applied to laboratory and production scene
Operation.
To achieve the above object, the invention provides a kind of positional punch for being used to measure non-magnetic metal plate residual stress
Machine, including fixed round platform, and the straight-through telescoping mechanism that fixed round platform is provided with, and the second straight-bar with straight-through telescoping mechanism
The fixes sleeve that bulb is connected；The centralising device to being used for positional punch position before non-magnetic metal plate punching is additionally included in,
And the perforating mechanism for being punched to non-magnetic metal plate.
Further, described straight-through telescoping mechanism includes the first straight-through expansion link lower beam, the first straight-through expansion link lower beam
The first straight-through expansion link upper boom is inside provided with, the described first straight-through expansion link upper boom top is provided with the first straight-bar bulb, above institute
Stretched provided with the second straight-through expansion link lower beam, the second interior led directly to provided with second of straight-through expansion link lower beam the first straight-bar bulb upper end stated
Contracting bar upper boom, the described second straight-through expansion link upper boom top are provided with the second straight-bar bulb, and the second described straight-bar bulb is with consolidating
Determine sleeve to be connected.
Further, described centralising device is USB digital microscopes, and the USB digital microscopes, which are fixed on, before punching beats
In the fixes sleeve of holes mechanism, and by adjusting the angle of two straight-bar bulbs and the focal length of USB digital microscopes so that USB
Clearly it is centered at the center of digital microscope at the raster center of strain rosette.
Further, described perforating mechanism includes electric drill, drilling rod and drill bit, and drilling rod is located in fixes sleeve, and along
The axial direction movement of fixes sleeve, described drill rod end installation drill bit.
Above-described first straight-bar bulb and the second straight-bar bulb are flexible along the first flexible straight-through upper boom and second respectively
Straight-through upper boom top rotation, it is more flexible for measuring the workpiece, it is convenient.
Above-described non-magnetic metal plate is stainless sheet steel, and the hole beaten is through hole, and through hole can preferably discharge
Stress, more accurate to result, punching depth is 0.05-1.5mm.
Above-described drilling rod is provided with the scale for being used for determining punching depth, and the scale range of setting is 0-30mm.
Above-described drill bit thread length is 10mm.
Compared with prior art, the present invention has the advantages that:The positioning that the present invention is used for measurement remnant stress is beaten
Hole machine, it is mainly used in the residual stress measurement of the nonmagnetic metal thin plate such as stainless steel.Before drilling, by using USB digital micro-analysis
The position of the multivariant regulation perforating mechanism of mirror, adjusts focal length, USB digital microscopes center is directed at strain rosette grating
Center, the punch position of workpiece is accurately positioned.After positioning successfully, USB digital microscopes are removed, load onto drilling rod.Drilling rod
Upper have certain scale, and the range of scale determines drilling depth in 0~30mm according to lamella thickness.Due to stainless steel materials
It is harder, in order to preferably drill, it is specified that the length of drill bit thread used is scheduled on 10mm.Through hole can make the remnants of inside workpiece
Stress release it is more complete.It is used for the localization punch of measurement remnant stress, the residual stress numerical value of measurement using the present invention
Accurately, and to workpiece damage small.The present invention is applicable not only to smooth stainless sheet steel, for the stainless sheet steel of concave-convex curved surface
It can also be used.The present invention can be used for laboratory, production scene to measure.
Brief description of the drawings
Fig. 1 is the structural representation of the positioner of the present invention
Fig. 2 is that the structure of the straight-bar bulb of the present invention is intended to
Fig. 3 is the fixation frustum cone structure schematic diagram of the present invention
Fig. 4 is the strain rosette structural representation of the present invention
Fig. 5 is the jackrod structure schematic diagram of the present invention
Fig. 6 is the drill bit structure schematic diagram of the present invention
In figure：1. fix round platform；2. the first straight-through expansion link lower beam；3. the first straight-through expansion link upper boom；4. the first straight-bar
Bulb；5. the second straight-through expansion link lower beam；6. the second straight-through expansion link upper boom；7. the second straight-bar bulb；8. fixes sleeve；9、
10th, 11,12,13,14,15,16,17,18,19,20. fixed screw；21. center grating；22nd, 23,24. foil gauge.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, but it should be understood that guarantor of the invention
Shield scope is not limited by embodiment.
As shown in Figure 1, according to a kind of localization punch of the specific embodiment of the invention, including:
A diameter of 10cm fixation round platform 1；Fixed round platform 1 is provided with straight-through telescoping mechanism, described straight-through telescoping mechanism
It is made up of two sets of straight-through expansion links, the therein first straight-through expansion link lower beam 2 is tubular body structure, its bottom and fixed round platform 1
It is connected, the first straight-through expansion link upper boom 3 is provided with its head tube body, and ensures that the first straight-through expansion link upper boom 3 can be in 2
Portion moves up and down；The straight-through expansion link upper boom 3 of described first connects straight-bar bulb 4, structural representation such as Fig. 2 of straight-bar bulb 4
It is shown, and ensure that straight-bar bulb 4 can the multiple degrees of freedom rotation on the first straight-through expansion link 3；The connection of straight-bar bulb 4 second is straight-through to stretch
The bottom of contracting bar lower beam 5, the second straight-through head tube body of expansion link lower beam 5 is interior to be provided with the second straight-through expansion link upper boom 6, and second is straight-through
Expansion link upper boom 6 can stretch inside the second straight-through expansion link lower beam 5；The straight-through expansion link upper boom 6 of described second connects straight-bar
Bulb 7, straight-bar bulb 7 can the multiple degrees of freedom rotations on the second straight-through expansion link upper boom 6；Connect on second straight-through expansion link upper boom 6
Fixes sleeve 8 is connect, fixes sleeve 8 can be used to centering punch position.
The present invention forms perforating mechanism by hand-operated electric drill, drilling rod and drill bit, and wherein drilling rod is arranged in fixes sleeve 8, bores
Bar moves in the axial direction of fixes sleeve 8, described drill rod end installation drill bit.
As shown in figure 3, being fixed in a plane fixed round platform 1 with stainless sheet steel, make to fix round platform 1 and Thin Stainless Steel
Plate forms a whole.Position of the straight-through expansion link upper boom 3 of regulation first in the first straight-through expansion link lower beam 2, highly reaches
It is fixed after it is required that by fixed screw 9,10,11, adjusts the first straight-bar bulb 4, when the angle of the second straight-through expansion link lower beam 5
After degree and position reach requirement, it is fixed by fixed screw 12,13,14, the straight-through expansion link upper boom 6 of regulation second is second
Position in straight-through expansion link lower beam 5, after the second straight-through extension elongation of expansion link upper boom 6 reaches requirement, pass through fixed screw
15th, 16,17 it is fixed, finally according to the position adjustments straight-bar bulb 7 of workpiece stainless sheet steel, when connected fixed cover
After the position of cylinder 8 reaches requirement, straight-bar bulb 7 is fixed by fixed screw 18,19,20.The above-described adjustment of the present invention
Method, it is not limited to which procedure described above, its purpose adjusted is that the position for making fixes sleeve 8 reaches final requirement.
By the regulation of the first straight-through straight-through expansion link upper boom 6 of expansion link upper boom 3 and second, keep the lifting of fixes sleeve 8 height and
The distance extended, pass through the regulation of the first straight-bar bulb 4 and the first straight-bar bulb 7, the position and angle of adjustment fixes sleeve 8
Degree, each link of the above can cooperate regulation, and by USB digital microscope identification technologies, finally answer the centering of fixes sleeve 8
Become at the center of the center grating 21 of flower.
As shown in figure 4, strain rosette includes center grating 21 and three foil gauges 22,23,24.Foil gauge is posted on workpiece
22nd, 23,24, after making the centring grating 21 of fixes sleeve 8 using USB digital microscope identification technologies.Beaten using hand-operated electric drill
Hole, punching depth are determined according to thickness of workpiece.As shown in figure 5, drilling rod is provided with the scale for being used for determining punching depth, pass through drilling rod
On scale come determine punching original position.Drill bit is installed in drill rod end, the drill bit used is as shown in fig. 6, for stainless
When the harder workpiece such as steel is drilled, because the sheet materials such as stainless steel are harder, in order to preferably drill, the length of drill bit thread is determined
In 10mm.
After having beaten hole, data before and after foil gauge 22,23,24 punches are collected by dynamic strain indicator, according to data analysis institute
The stress of release.
In the present invention, because some thin plates do not have magnetic, the fixed screw being arranged below by the fixed round platform 1 makes
Thin plate is fixed with fixed round platform 1.It is further to note that it is of the invention using stainless sheet steel as embodiment, but be not limited to not
Become rusty steel sheet, does not have the sheet metal workpieces of magnetic, and the nonmagnetic metal sheet workpiece of surface irregularity to other
It is applicable.
Claims (7)
- A kind of 1. localization punch for being used to measure non-magnetic metal plate residual stress, it is characterised in that：Including fixing round platform, with And the straight-through telescoping mechanism that fixed round platform is provided with, and the fixed cover being connected with the second straight-bar bulb of straight-through telescoping mechanism Cylinder；The centralising device to being used for positional punch position before non-magnetic metal plate punching is additionally included in, and for non magnetic gold Belong to the perforating mechanism of plate punching；Described straight-through telescoping mechanism includes the first straight-through expansion link lower beam, and it is straight-through to be provided with first in the first straight-through expansion link lower beam Expansion link upper boom, the described first straight-through expansion link upper boom top are provided with the first straight-bar bulb, above-described first straight-bar ball Head upper end is provided with the second straight-through expansion link lower beam, and the second straight-through expansion link upper boom is provided with the second straight-through expansion link lower beam, described The second straight-through expansion link upper boom top be provided with the second straight-bar bulb, the second described straight-bar bulb is connected with fixes sleeve.
- 2. the localization punch according to claim 1 for being used to measure non-magnetic metal plate residual stress, it is characterised in that： Described centralising device is USB digital microscopes, and the USB digital microscopes are fixed on the fixes sleeve of perforating mechanism before punching It is interior, and by adjusting the angle of two straight-bar bulbs and the focal length of USB digital microscopes so that the center of USB digital microscopes Place is clearly centered at the raster center of strain rosette.
- 3. the localization punch according to claim 1 for being used to measure non-magnetic metal plate residual stress, it is characterised in that： Described perforating mechanism includes electric drill, drilling rod and drill bit, and drilling rod is in fixes sleeve, and along the axial direction of fixes sleeve Mobile, described drill rod end installation drill bit.
- 4. the localization punch according to claim 1 for being used to measure non-magnetic metal plate residual stress, it is characterised in that： The first described straight-bar bulb and the second straight-bar bulb are respectively along the first flexible straight-through upper boom and the second flexible straight-through upper boom top Rotation.
- 5. the localization punch according to claim 1 for being used to measure non-magnetic metal plate residual stress, it is characterised in that： Described non-magnetic metal plate is stainless sheet steel, and the hole beaten is through hole, and through hole can preferably discharge stress, to result more It is accurate to add, and punching depth is 0.05-1.5mm.
- 6. the localization punch according to claim 3 for being used to measure non-magnetic metal plate residual stress, its feature exist In：Above-described drilling rod is provided with the scale for being used for determining punching depth, and the scale range of setting is 0-30mm.
- 7. the localization punch according to claim 3 for being used to measure non-magnetic metal plate residual stress, it is characterised in that： Above-described drill bit thread length is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929855.7A CN105458340B (en) | 2015-12-11 | 2015-12-11 | A kind of localization punch for being used to measure non-magnetic metal plate residual stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929855.7A CN105458340B (en) | 2015-12-11 | 2015-12-11 | A kind of localization punch for being used to measure non-magnetic metal plate residual stress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458340A CN105458340A (en) | 2016-04-06 |
| CN105458340B true CN105458340B (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929855.7A Expired - Fee Related CN105458340B (en) | 2015-12-11 | 2015-12-11 | A kind of localization punch for being used to measure non-magnetic metal plate residual stress |
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| CN (1) | CN105458340B (en) |
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| CN106985098B (en) * | 2017-03-31 | 2019-02-05 | 黄海基 | Universal type adjustable locator |
| CN109333083B (en) * | 2018-08-22 | 2023-10-03 | 四川大学 | Residual stress detection auxiliary device for non-ferromagnetic parts |
| CN110449635A (en) * | 2019-08-28 | 2019-11-15 | 桂林电子科技大学 | Realize the high accuracy positioning and drilling equipment of residual stress measurement |
| CN111002485B (en) * | 2019-12-28 | 2021-04-16 | 黄珍珍 | Conveniently be used for fixed adjusting device of construction wall drilling |
| CN111811705B (en) * | 2020-08-20 | 2022-06-24 | 浙江德元检测有限公司 | Fixing device for strain rosette and residual stress detection method using same |
| CN112432704B (en) * | 2020-11-30 | 2022-10-11 | 包头职业技术学院 | Automobile engine noise detection device |
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| CN105458340A (en) | 2016-04-06 |
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