CN109540660A - Adjustable hardness test fixture - Google Patents
Adjustable hardness test fixture Download PDFInfo
- Publication number
- CN109540660A CN109540660A CN201910030752.5A CN201910030752A CN109540660A CN 109540660 A CN109540660 A CN 109540660A CN 201910030752 A CN201910030752 A CN 201910030752A CN 109540660 A CN109540660 A CN 109540660A
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- China
- Prior art keywords
- support frame
- clamping
- handed screw
- fixture seat
- hole
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000007542 hardness measurement Methods 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical group CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
-
- 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
- G01N2203/0447—Holders for quick insertion/removal of test pieces
Abstract
The invention discloses a kind of adjustable hardness test fixtures, pedestal is provided with above chassis, two sides on pedestal are symmetrically installed with left support frame and right support frame, and positioning disk is connected at the top of left support frame and right support frame, and the section of clamping fixture seat is in major arc arch, guide groove is provided in clamping fixture seat, the periphery in clamping fixture seat middle section is set with sliding sleeve, and the upper surface of sliding sleeve is provided with objective table, connects geared surface fixture block on left-handed screw, it is connected with plane fixture block in right handed screw, is respectively arranged with adjusting screw rod on column.The present invention, which can be realized, is fixed the measured workpiece of any shape, it is stable, the test for meeting hardness solves irregular measured workpiece and carries out the phenomenon that generating bias because being not fixed firmly when hardness test, so as to cause the big problem of measurement hardness and actual hardness deviation.The working efficiency that reviewer can be greatlyd improve guarantees the accuracy and stability of micro-hardness testing, has wide applicability.
Description
Technical field
The present invention relates to mixcrohardness test equipment technical fields, are specifically related to a kind of adjustable hardness test fixture.
Background technique
Hardness test, must can not during failure analysis and quality inspection as a kind of conventional Physico-chemical tests means
It is few.The hardness of material is that material resists local deformation, especially plastic deformation, the ability of impression or scratch, is to measure material softer
One important performance indexes of hard degree, are the integrated performance indexs of the mechanics such as elastic properties of materials, plasticity, intensity and toughness.And it shows
One of which of the microhardness as hardness test, overlay coating, local deformation, abnormal structure, hardness gradient, sheet metal specimens,
Small size sample etc. has irreplaceable role, is usually used in the hardness determination of various microcells.The metal of hardness test tries
Sample surface smoothness to be measured is more demanding, and only guaranteed penetrator is vertical with specimen surface, and test data is only really,
Just there is confidence level.In the research and relevant analytic process of material, usually there is the specimen surface tested and working face not
Parallel situation, if directly beating hardness in specimen surface will affect the accuracy of test value.
But reality measurement in, be frequently encountered some irregular parts and need to measure, due to measured workpiece shape not
In the placement test stand that rule can not be stable, in pressure measurement process, be easy to happen skew, eccentric or even part sphere shape or
Person's globoid part can not be measured directly at all.The solution typically now taken be by make cuboid inlay sample into
Row measurement.It bothers since sample makes, and is partially heat-treated after making, can be joined during heat treatment due to processing
The case where several differences leads to the error of its hardness, equally has measurement hardness number distortion, since special-shaped sample is in test process
In to be difficult to ensure its surface to be measured vertical with the holding of the ram axis of experimental rig, therefore often will appear error in an experiment, shadow
Work quality is rung, operating process is cumbersome, and pretightning force is inadequate, time-consuming and laborious.
Summary of the invention
For the problems mentioned above in the background art, the present invention provides a kind of adjustable hardness test fixture, can be realized
The measured workpiece of any shape is fixed, the test of hardness is met；It solves irregular measured workpiece and carries out hardness survey
Due to being not fixed firmly the bias-pressure phenomenon being easy to produce when examination, lead to measure hardness and the big problem of actual hardness deviation；It being capable of pole
The earth improves the working efficiency of reviewer, guarantees the accuracy and stability of micro-hardness testing, has wide applicability.
In order to solve the above technical problem, the present invention provides following technical solutions: adjustable hardness test fixture, including chassis
And clamping fixture seat, pedestal is provided with above the chassis, and the two sides on pedestal are symmetrically installed with left support frame and right support frame, left branch
The middle part of support and right support frame is correspondingly arranged on through-hole, and the clamping fixture seat is through through-hole；Left support frame and right support frame
Top be connected with positioning disk, the centre of positioning disk is provided with location hole；The both ends of the clamping fixture seat are cylindrical shape, interlude
Section is in major arc arch, is equipped with guide groove in major arc arch, the upper surface of clamping fixture seat is provided with objective table, and clamping fixture seat middle section is with respect to loading
The periphery of platform is set with sliding sleeve, and the guide groove of lower section is provided with left-handed screw on the left of objective table, connection geared surface folder on left-handed screw
Block；The guide groove of objective table lower right-hand side is provided with right handed screw, and plane fixture block, left-handed screw and dextrorotation are connected in right handed screw
Screw rod is each passed through the through-hole in the cylinder of clamping fixture seat both ends, and inner end is connected by the way that coupling sleeve is opposite；On the inside of the both ends of clamping fixture seat
Retaining ring is installed with respectively with left-handed screw and right handed screw junction, and the outer end of left-handed screw and right handed screw is respectively connected with rotation
Handle；
Clamping fixture seat two sides are provided with clamping seats, and wherein the clamping seats of side are equipped with the top of handle screw and the clamping seats of the side
Equipped with column, the clamping seats both sides equipped with clamping screw and the side on the clamping seats of the other side is provided with column, fills on column
There is adjusting screw rod.
Further, the flank of tooth fixture block is T-shaped, and upper part is equipped with shape tooth on one side, lower part be provided with threaded hole and with it is left-handed
Screw rod connection.
Further, the plane fixture block is T-shaped, and upper part is plane, and lower part is provided with threaded hole and connects with right handed screw
It connects.
Further, the column is at least three, and mutual spacing is uniformly distributed.
Further, the through-hole of the left support frame and through-hole diameter of right support frame is identical and same axis, the through-hole with
Clamping fixture seat both ends cylinder clearance fit.
Compared with prior art, clamping force of the present invention is big, easy to operate, stable working state, be suitable for various shapes and
The hardness fixture of size, structure novel, design are reasonable；It can be realized and the measured workpiece of any shape is fixed, it is full
The test request of sufficient hardness solves irregular measured workpiece and carries out generating showing for bias because being not fixed firmly when hardness test
As so as to cause the big problem of measurement hardness and actual hardness deviation.Test result accuracy is high, easy to operate, can fast velocity modulation
The height between sample to be tested and pressure head is saved, to keep the tested surface of sample vertical with ram axis holding, reduces experimental error,
The working efficiency that reviewer can be greatlyd improve guarantees the accuracy and stability of micro-hardness testing, has extensive
Applicability.
Detailed description of the invention
Fig. 1 is positive schematic perspective view of the invention；
Fig. 2 is the reversed schematic perspective view that the present invention removes positioning disk 5；Fig. 3 is the vertical view that the present invention removes positioning disk 5
Figure；
Fig. 4 is the vertical axial diagrammatic cross-section of 2 installation condition of clamping fixture seat in the present invention；
Fig. 5 be in Fig. 4 A-A to schematic cross-section；Fig. 6 is the structural schematic diagram of plane fixture block 20 in the present invention；
Fig. 7 is the structural schematic diagram of flank of tooth fixture block 11 in the present invention；
Fig. 8 is the schematic perspective view of flank of tooth fixture block 11 in the present invention;
In figure: the chassis 1-, 2- clamping fixture seat, 3- rotating handle, 4- left support frame, 5- positioning disk, 6- location hole, 7- right support frame, 8-
Column, 9- pedestal, 10- sliding sleeve, 11- flank of tooth fixture block, 12- adjusting screw rod, 13- clamping seats, 14- clamping screw, 15- handle spiral shell
Bar, 16- right handed screw, 17- guide groove, 18- objective table, 19- left-handed screw, 20- plane fixture block, 21- coupling sleeve, 22- retaining ring.
Specific embodiment
Below in conjunction with drawings and examples, the invention will be further described.Referring to Fig. 1 to Fig. 8, adjustable hardness test folder
Tool, including a chassis 1 and a clamping fixture seat 2, circle is in chassis 1 and is provided with circular pedestal 9 above, and two on pedestal 9
Side is symmetrically installed with left support frame 4 and right support frame 7, and the middle part of left support frame 4 and right support frame 7 is correspondingly arranged on round logical
Hole, clamping fixture seat 2 is through through-hole；Positioning disk 5, positioning disk 5 has been bolted in the top of left support frame 4 and right support frame 7
Centre be provided with location hole 6；The both ends of clamping fixture seat 2 are cylindrical shape, and the section of interlude is in major arc arch, are set in major arc arch
There is guide groove 17, the upper surface of clamping fixture seat 2 is provided with an objective table 18, covers in the middle section of clamping fixture seat 2 with respect to the periphery of objective table 18
Equipped with a sliding sleeve 10, the guide groove 17 of 18 left side lower section of objective table is provided with left-handed screw 19, connects on left-handed screw 19 with teeth
Face fixture block 11；The guide groove 17 of 18 lower right-hand side of objective table is provided with right handed screw 16, and plane fixture block is connected in right handed screw 16
20.Left-handed screw 19 and right handed screw 16 are each passed through the through-hole in 2 both ends cylinder of clamping fixture seat, and left-handed screw 19 and dextrorotation spiral shell
The inner end of bar 16 is connected by the way that coupling sleeve 21 is opposite；It is connect on the inside of the both ends of clamping fixture seat 2 with left-handed screw 19 and right handed screw 16
Locate to be installed with retaining ring 22 respectively, the outer end of left-handed screw 19 and right handed screw 16 is respectively connected with rotating handle 3.2 liang of outsides of clamping fixture seat
Clamping seats 13 are provided with, the top that wherein clamping seats 13 of side are equipped with handle screw 15 and the clamping seats 13 of the side is equipped with vertical
Column 8,13 both sides of clamping seats equipped with clamping screw 14 and the side on the clamping seats 13 of the other side are provided with column 8, on column 8
Equipped with adjusting screw rod 12.Flank of tooth fixture block 11 is T-shaped, and upper part is equipped with shape tooth on one side, lower part be provided with threaded hole and with left-handed spiral shell
Bar 19 connects.Plane fixture block 20 is T-shaped, and upper part is plane, and lower part is provided with threaded hole and connect with right handed screw 16.Column
8 are at least three, and mutual spacing is uniformly distributed.The through-hole of left support frame 4 is identical and same as the through-hole diameter of right support frame 7
Axis, the through-hole and 2 both ends cylinder clearance fit of clamping fixture seat.
Embodiment: the present invention provides following preferable case study on implementation: adjustable hardness test fixture, using high strength steel material
The chassis 1 of production, pedestal that bottom surface is equipped with structure cylindrical, that diameter is about 8mm, and set by the pedestal with hardness
Standby platform is connected.Chassis 1 is provided with pedestal 9 above, and pedestal 9 is in cylindrical structure, and diameter is 70mm, is highly 26mm,
Two sides on pedestal 9 are symmetrically installed with left support frame 4 and right support frame 7, and left support frame 4 and the height of right support frame 7 are
60mm, is used to support positioning disk 5 and installs fixture seat 2(is as shown in Figure 1).The through-hole diameter phase of left support frame 4 and right support frame 7
With and same axis, the through-hole be round hole, through-hole and 2 both ends cylinder clearance fit of clamping fixture seat, and clamping fixture seat 2 is through left branch
The through-hole (as shown in Figure 1, Figure 2 and Figure 3) of support 4 and right support frame 7.Left support frame 4 is fixedly connected with the top of right support frame 7
There is positioning disk 5, the diameter of positioning disk 5 is 80mm, and the centre of positioning disk 5 is provided with location hole 6, and 6 diameter of location hole is 50mm, just
Location hole 6 is passed through in hardness equipment, and hardness test is carried out to sample to be tested.The both ends of clamping fixture seat 2 are cylindrical shape, and interlude is cut
Face is in major arc arch, is equipped with guide groove 17 in major arc arch, the upper surface of clamping fixture seat 2 is provided with objective table 18, and 2 middle section of clamping fixture seat is opposite
It is as shown in Figure 5 that the periphery of objective table 18 is set with sliding sleeve 10(), the center of location hole 6 and the center of objective table 18 are same vertical
On line, keep the tested surface of sample to be tested vertical with the holding of the ram axis of hardness equipment, reduces experimental error.18 left side of objective table
The guide groove 17 of lower section is provided with left-handed screw 19, connects geared surface fixture block 11 on left-handed screw 19；18 lower right-hand side of objective table
Guide groove 17 is provided with right handed screw 16, and plane fixture block 20, flank of tooth fixture block 11(such as Fig. 7 and Fig. 8 institute are connected in right handed screw 16
Show) and plane fixture block 20(it is as shown in Figure 6) material be all carbon constructional quality steel.Left-handed screw 19 and right handed screw 16 are distinguished
Across the through-hole of the cylinder at 2 both ends of clamping fixture seat, and inner end is connected by the way that coupling sleeve 21 is opposite；It is on the inside of the both ends of clamping fixture seat 2 and left
Rotation screw rod 19 and 16 junction of right handed screw are separately installed with retaining ring 22, and the outer end of left-handed screw 19 and right handed screw 16 is all connected with
Have rotating handle 3(as shown in Figure 3 and Figure 4) convenient for by there is the rotation of rotating handle 3 of annular knurl to drive flank of tooth fixture block 11 to external rolling
It is moved left and right with plane fixture block 20, it is convenient that clamping and loose unloading are carried out to sample to be tested.
Two outsides of clamping fixture seat 2 are respectively arranged with clamping seats 13, and wherein the clamping seats 13 of side are equipped with handle screw 15,
And the top of the clamping seats 13 of the side is fixed equipped with column 8, can be played by rotating handle screw rod 15 and carry out position to sliding sleeve 10
Fixed effect.13 both sides of clamping seats equipped with clamping screw 14 and the side on the clamping seats 13 of the other side is provided with column 8, stands
It is respectively arranged with adjusting screw rod 12 on column 8, sample to be tested is fixed by rotating three adjusting screw rods 12, forms triangle and stablizes
Structure improves the stability and detection accuracy for playing hardness operation.Flank of tooth fixture block 11 is T-shaped, and upper part is equipped with shape tooth on one side, successively
It is set as in equilateral triangle, rectangle, isosceles trapezoid and isosceles triangular structure, and their size is different, is applicable in
In the hardness sample to be tested of sizes and shape, stringency of test is high, easy to operate, be adjusted sample to be tested and pressure head it
Between height.11 lower part of flank of tooth fixture block is provided with threaded hole and connect (as shown in Figure 7 and Figure 8) with left-handed screw 19.Plane fixture block
20 is T-shaped (as shown in Figure 6), and upper part is plane, and lower part is provided with threaded hole and connect with right handed screw 16.Column 8 is at least
It is three, and mutual spacing is uniformly distributed.
The present invention is suitable for clamping the tested sample of a variety of shapes and sizes, in use, the pedestal on chassis 1 is mounted on firmly
It spends in the sample platform of equipment, first by three adjusting screw rods 12 of rotation, handle screw 15 and clamping screw 14 to be tested
Sample is clamped in the middle position on objective table 18, the objective table 18 on clamping fixture seat 2 can be kept horizontal by the rotation of clamping fixture seat 2
Face keeps optimal gradient, guarantees that the tested surface of sample to be tested is vertical with ram axis holding, reduces experimental error.Left-handed spiral shell
Bar screw rod 19 and right handed screw 16 use right-and-left threaded mode, and objective table 18 can be made to press from both sides tighter, hardness under vibrating state
Pressure head is pressed in by location hole 6 to carry out accurate and reliable, comprehensive hardness of beating and operates on sample to be tested, test result accuracy
Height greatlys improve the working efficiency of reviewer, guarantees the accuracy and stability of micro-hardness testing, has extensive suitable
The property used.
Claims (5)
1. adjustable hardness test fixture, including chassis (1) and clamping fixture seat (2), which is characterized in that the chassis (1) is arranged above
Have pedestal (9), the two sides on pedestal (9) are symmetrically installed with left support frame (4) and right support frame (7), left support frame (4) He Youzhi
The middle part of support (7) is correspondingly arranged on through-hole, and the clamping fixture seat (2) is through through-hole；Left support frame (4) and right support frame
(7) it is connected at the top of positioning disk (5), the centre of positioning disk (5) is provided with location hole (6)；The both ends of the clamping fixture seat (2) are
Cylindrical shape, the section of interlude are in major arc arch, are equipped with guide groove (17) in major arc arch, the upper surface of clamping fixture seat (2) is provided with load
Object platform (18), clamping fixture seat (2) middle section are set with sliding sleeve (10) with respect to the periphery of objective table (18), lower section on the left of objective table (18)
Guide groove (17) is provided with left-handed screw (19), connects geared surface fixture block (11) on left-handed screw (19)；Under on the right side of objective table (18)
The guide groove (17) of side is provided with right handed screw (16), and plane fixture block (20) are connected in right handed screw (16)；Left-handed screw (19)
It is each passed through the through-hole in the cylinder of clamping fixture seat (2) both ends with right handed screw (16), and inner end is connected by the way that coupling sleeve (21) are opposite；
It is installed with respectively retaining ring (22) on the inside of the both ends of clamping fixture seat (2) with left-handed screw (19) and right handed screw (16) junction, it is left-handed
The outer end of screw rod (19) and right handed screw (16) is respectively connected with rotating handle (3)；
Clamping fixture seat (2) two sides are provided with clamping seats (13), and wherein the clamping seats (13) of side are equipped with handle screw (15) and should
The top of the clamping seats (13) of side is equipped with column (8), equipped with clamping screw (14) and the side on the clamping seats (13) of the other side
Clamping seats (13) both sides is provided with column (8), and adjusting screw rod (12) are respectively arranged on column (8).
2. adjustable hardness test fixture according to claim 1, which is characterized in that the flank of tooth fixture block (11) is T-shaped,
Top is equipped with shape tooth on one side, and lower part is provided with threaded hole and connect with left-handed screw (19).
3. adjustable hardness test fixture according to claim 1, which is characterized in that the plane fixture block (20) is T-shaped,
Top is plane, and lower part is provided with threaded hole and connect with right handed screw (16).
4. adjustable hardness test fixture according to claim 1, which is characterized in that the column (8) is at least three, and
Mutual spacing is uniformly distributed.
5. adjustable hardness test fixture according to claim 1, which is characterized in that the through-hole of the left support frame (4) with
The through-hole diameter of right support frame (7) is identical and same axis, the through-hole and clamping fixture seat (2) both ends cylinder clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030752.5A CN109540660A (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030752.5A CN109540660A (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109540660A true CN109540660A (en) | 2019-03-29 |
Family
ID=65835239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910030752.5A Pending CN109540660A (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109540660A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763557A (en) * | 2019-12-16 | 2020-02-07 | 南昌航空大学 | Clamp suitable for microhardness tests at different angles |
| CN112255091A (en) * | 2020-09-03 | 2021-01-22 | 黑旋风锯业股份有限公司 | Hardness meter tray for detecting thin steel plate and detection method thereof |
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| CN202133589U (en) * | 2011-07-01 | 2012-02-01 | 武汉钢铁(集团)公司 | Auxiliary clamp for hardness test |
| CN102879263A (en) * | 2012-10-15 | 2013-01-16 | 上海锅炉厂有限公司 | Fixture for testing hardness and application method |
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN206248455U (en) * | 2016-12-16 | 2017-06-13 | 四川建筑职业技术学院 | A kind of frock clamp for Vickers |
| CN207882062U (en) * | 2017-11-28 | 2018-09-18 | 陕西中铁科技有限公司 | A kind of sample testing universal fixture in irregular shape |
| CN209446386U (en) * | 2019-01-14 | 2019-09-27 | 南昌航空大学 | Adjustable hardness test fixture |
-
2019
- 2019-01-14 CN CN201910030752.5A patent/CN109540660A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202133589U (en) * | 2011-07-01 | 2012-02-01 | 武汉钢铁(集团)公司 | Auxiliary clamp for hardness test |
| CN102879263A (en) * | 2012-10-15 | 2013-01-16 | 上海锅炉厂有限公司 | Fixture for testing hardness and application method |
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN206248455U (en) * | 2016-12-16 | 2017-06-13 | 四川建筑职业技术学院 | A kind of frock clamp for Vickers |
| CN207882062U (en) * | 2017-11-28 | 2018-09-18 | 陕西中铁科技有限公司 | A kind of sample testing universal fixture in irregular shape |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763557A (en) * | 2019-12-16 | 2020-02-07 | 南昌航空大学 | Clamp suitable for microhardness tests at different angles |
| CN112255091A (en) * | 2020-09-03 | 2021-01-22 | 黑旋风锯业股份有限公司 | Hardness meter tray for detecting thin steel plate and detection method thereof |
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