CN109632473A - A kind of tubular part hardness measurement fixture - Google Patents
A kind of tubular part hardness measurement fixture Download PDFInfo
- Publication number
- CN109632473A CN109632473A CN201910104971.3A CN201910104971A CN109632473A CN 109632473 A CN109632473 A CN 109632473A CN 201910104971 A CN201910104971 A CN 201910104971A CN 109632473 A CN109632473 A CN 109632473A
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- CN
- China
- Prior art keywords
- tubular part
- fixed
- clamping element
- strut
- jaw
- 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.)
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Classifications
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- 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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of tubular part hardness measurement fixtures, including pedestal, column, strut beam, fixed beam and at least one clamping element；Column is fixed on the base；Strut beam is horizontally disposed at the top of pedestal, and one end is fixed on column；The top of strut beam is arranged in fixed beam, and one end is fixed on column；Fixed beam has instrument connection；Clamping element passes through fixed beam, can move up and down relative to fixed beam；Tubular part covers on strut beam, and clamping element is mobile towards tubular part, until the lower end of clamping element applies pressure to tubular part, tubular part is fixed at this pressure, and penetrator passes through instrument connection, carries out hardness test to tubular part.The present invention have many advantages, such as to make hardness test more precisely, expand the hardometer scope of application.
Description
Technical field
The invention belongs to machinery fields, are related to a kind of fixture more particularly to a kind of tubular part hardness measurement fixture.
Background technique
Nowadays the single-machine capacity of firepower electrical plant constantly rises, and the main steam pressure of supercritical unit reaches 26MPa or more, temperature
More stringent requirements are proposed more than 560 DEG C, therefore to the material property at each position of generating set for degree.In the capital construction of firepower electrical plant
Particularly important to the quality progress physical and chemical inspection of pipeline and during being on active service, since condition limits, detection means is examined with hardness
Based on survey and metal lographic examination, Hardness results are related to the mechanical property of material, have important reference value.
Hardness detection method includes Brinell hardness, Rockwell hardness, Vickers hardness and lee ' hardness.Wherein, Rockwell hardness is
The hardness number of material is calculated and then directly measuring pressure head compression distance, part Brinell hardness tester is also by measuring pressure head pressure
Enter depth inverse impression diameter and obtain hardness number, under the scleroscopic measurement result of compression distance class and pressure head are in course of exerting pressure
Row distance is directly related.The precise measurement of compression distance can effectively promote such scleroscopic precision, make measurement result and examination
Sample actual performance matches.
For tubulose sample, directly measurement when test specimen be easily subjected to displacement and flexible deformation, keep the compression distance value of test inclined
Greatly, hardness number is less than normal.Particularly with light wall pipe part, tube wall is thin, and caliber is big, and elastic deformation amount is possibly even greater than compression distance, makes
Test result does not have referential.Generally pass through sampling for the hardness test of such sample at present to measure, test period
Long, human cost investment is larger.
Summary of the invention
The present invention provides a kind of tubular part hardness measurement fixture, to overcome the deficiencies of existing technologies.
To achieve the above object, the present invention provides a kind of tubular part hardness measurement fixture, including pedestal, column, holds
Press beam, fixed beam and at least one clamping element；Column is fixed on the base；Strut beam is horizontally disposed at the top of pedestal, and one
End is fixed on column；The top of strut beam is arranged in fixed beam, and one end is fixed on column；Fixed beam has instrument connection；Folder
Tight part passes through fixed beam, can move up and down relative to fixed beam；Tubular part covers on strut beam, and clamping element is towards tubular part
Mobile, until the lower end of clamping element applies pressure to tubular part, tubular part is fixed at this pressure, and penetrator passes through
Instrument connection carries out hardness test to tubular part.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, clamping element includes head and screw rod；Screw rod has external screw thread, is threaded in the tool internal thread through-hole of fixed beam；
Head is set to the upper end of screw rod, positioned at the top of fixed beam；Head is rotated, clamping element is moved up and down relative to fixed beam.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: and also wraps
Include at least one jaw；The quantity of jaw and the quantity of clamping element are equal, and correspond；The bottom surface of jaw is inverted V shaped；Jaw
It is placed on tubular part, the inverted V-shaped bottom surface of jaw is coated on the surface of tubular part, the placement location of jaw and the folder of top
The position of tight part is corresponding；Clamping element is mobile towards tubular part, until the lower end of clamping element is against the top surface of jaw, tubular part
Tube wall be fixed between the bottom surface of jaw and strut beam.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, the center line of instrument connection and the center line of pedestal are located along the same line.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, the quantity of clamping element is two, along the length direction of fixed beam, is separately positioned on the two sides of instrument connection.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, strut beam is made of several sub- strut beams；One end of sub- strut beam is removably attached on column；All sub- pressure-bearings
Beam is fixed on column, and the width of strut beam is maximum, and disassembling part molecule strut beam, the width of strut beam becomes smaller.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, the quantity of strut beam be it is multiple, the width of each strut beam is unequal, and one end is removably attached on column；
According to the internal diameter of tubular part, a strut beam is selected to be fixed on column.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, strut beam is cylindrical body, cuboid or triangular prism.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, the top surface of jaw is horizontal plane.
Further, the present invention provides a kind of tubular part hardness measurement fixture, can also have the following features: it
In, the angle of the inverted V-shaped bottom surface of jaw is 120 °~170 °.
The beneficial effects of the present invention are: the present invention provides a kind of tubular part hardness measurement fixture, passes through clamping element
With the clamping of strut beam, tubular part can be fixed along the direction of its vertical wall thickness, thus answering during making hardness test
Power only acts upon on tube wall, avoids in the scleroscopic measurement process of compression distance class, tubular part sample deformation and sample
The mobile influence to test result.Meanwhile for the non-scleroscopic measurement of compression distance class, the fixation of fixture also reduces examination
Sample deforms the influence to its measuring accuracy.
In addition, the hardness test of conventional tube component is compared with the traditional method by sampling and measuring, this fixture can be straight
Measurement tubulose sample hardness is connect, test period is reduced, reduces human cost, expanded the scleroscopic scope of application.
Detailed description of the invention
Fig. 1 is the main view of tubular part hardness measurement fixture；
Fig. 2 is the left view of tubular part hardness measurement fixture；
Fig. 3 is the top view of tubular part hardness measurement fixture.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
As shown in Figure 1-3, the present invention provides a kind of tubular part hardness measurement fixture, including pedestal 1, column 2, hold
Press beam 3,4, two clamping elements 5 of fixed beam and two jaws 6.
Pedestal 1 is cylindrical body, and diameter 120mm is highly 20mm.
Column 2 is fixed on vertically on pedestal 1.
Fixture total height is 100mm.
Strut beam 3 is horizontally disposed at the top of pedestal 1, and one end is fixed on column 2, in 2 side of column on
Portion.Strut beam 3 is cylindrical body, diameter 24mm, length 50mm.
The top of strut beam 3 is arranged in fixed beam 4, and one end is fixed on column 2, positioned at the side upper end of column 2.It is fixed
Beam 4 is cuboid, with a thickness of 5mm.
Fixed beam 4 has instrument connection 41.Instrument connection 41 is circular through-hole, and the aperture of instrument connection 41 is greater than penetrator
Diameter, in order to which penetrator can move freely in instrument connection 41.In the present embodiment, the aperture of instrument connection 41 is
30mm。
The center line of instrument connection 41 and the center line of pedestal 1 are located along the same line, to reinforce in fixture use process
Stability.
Clamping element 5 passes through fixed beam 4.Clamping element 5 includes head 51 and screw rod 52.Screw rod 52 has external screw thread, and screw thread connects
It connects in the tool internal thread through-hole of fixed beam 4.Head 51 is set to the upper end of screw rod 52, positioned at the top of fixed beam 4.
Head 51 is rotated, clamping element 5 can be moved up and down relative to fixed beam 4.
Two clamping elements 5 are separately positioned on the two sides of instrument connection 41 along the length direction of fixed beam 4.
Jaw 6 is the individual components not connecting with other structures.The bottom surface of jaw 6 is inverted V shaped, i.e. the longitudinal section of jaw 6
Bottom edge it is inverted V shaped, as shown in Figure 2.The angle of the inverted V-shaped bottom surface of jaw 6 is 120 °~170 °.In the present embodiment, jaw 6
The angle of inverted V-shaped bottom surface is 150 °.
The top surface of jaw 6 is horizontal plane.
In use, tubular part A covers on strut beam 3.Two jaws 6 are placed on tubular part A, the inverted V-shaped of jaw 6
Bottom surface is coated on the surface of tubular part A.The placement location of two jaws 6 position one with two clamping elements 5 of top respectively
One is corresponding.
The head 51 of clamping element 5 is rotated, clamping element 5 is mobile towards tubular part A, until the lower end of clamping element 5 is against jaw 6
Top surface, at this point, the lower end of clamping element 5 applies pressure to jaw 6 and tubular part A, tubular part A is fixed at this pressure
Between the bottom surface and strut beam 4 of jaw 6.Then, fixture is placed on a durometer scale, and is in penetrator position and surveys
At 41 center of prospect hole.Penetrator passes through instrument connection 41, carries out hardness test to tubular part A.
Wherein, two pairs of clamping elements 5 and jaw 6 equably can apply pressure to tubular part A, reinforce to tubular part A's
It is fixed.The top surface of jaw 6 is horizontal plane, and the lower end convenient for clamping element 5 is puted forth effort.
According to the size of structure each in the present embodiment, the fixture of the present embodiment can be used for the tubular portion that outer diameter is not more than 70mm
The hardness test of part.
In the present embodiment, strut beam can also be cuboid or triangular prism.
In the present embodiment, the quantity of clamping element can be one or more.Correspondingly, the setting quantity and clamping element of jaw
It is identical, and when in use, it is corresponded with clamping element.
In addition, strut beam can also be the strut beam of combining form in the present embodiment, it is made of several sub- strut beams.
One end of sub- strut beam is removably attached on column.When all sub- strut beam is fixed on column, what is constituted is complete
The width of whole strut beam is maximum.When the disassembling part molecule strut beam from column, pressure-bearing that remaining sub- strut beam is constituted
The width of beam becomes smaller.By dismantling sub- strut beam, the width of adjustable strut beam, to adapt to the tubular portion of different inner diameters
Part.Strut beam can be cylindrical body, cuboid or triangular prism, and correspondingly, sub- strut beam is the arbitrary shape for constituting strut beam.
In addition, in the present embodiment, the quantity of strut beam can also be it is multiple, the width of each strut beam is unequal, and its
One end is removably attached on column.According to the internal diameter of tubular part, a strut beam is selected to be fixed on column.
Claims (10)
1. a kind of tubular part hardness measurement fixture, it is characterised in that:
Including pedestal, column, strut beam, fixed beam and at least one clamping element；
The column is fixed on the pedestal；
The strut beam is horizontally disposed at the top of the pedestal, and one end is fixed on the column；
The top of the strut beam is arranged in the fixed beam, and one end is fixed on the column；
The fixed beam has instrument connection；
The clamping element passes through the fixed beam, can move up and down relative to the fixed beam；
Tubular part covers on the strut beam, and the clamping element is mobile towards the tubular part, until the lower end of clamping element to
Tubular part applies pressure, and tubular part is fixed at this pressure, and penetrator passes through the instrument connection, to tubular part
Carry out hardness test.
2. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the clamping element includes head and screw rod；
The screw rod has external screw thread, is threaded in the tool internal thread through-hole of the fixed beam；
The head is set to the upper end of the screw rod, positioned at the top of the fixed beam；
The head is rotated, the clamping element is moved up and down relative to the fixed beam.
3. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
It further include at least one jaw；
The quantity of the jaw is equal with the quantity of the clamping element, and corresponds；
The bottom surface of the jaw is inverted V shaped；
The jaw is placed on the tubular part, and the inverted V-shaped bottom surface of jaw is coated on the surface of tubular part, and jaw is put
Seated position is corresponding with the position of the clamping element of top；
The clamping element is mobile towards the tubular part, until the lower end of clamping element is against the top surface of the jaw, tubular part
Tube wall be fixed between the bottom surface of jaw and the strut beam.
4. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the center line of the instrument connection and the center line of the pedestal are located along the same line.
5. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the quantity of the clamping element is two, along the length direction of the fixed beam, is separately positioned on the instrument connection
Two sides.
6. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the strut beam is made of several sub- strut beams；
One end of the sub- strut beam is removably attached on the column；
All sub- strut beam is fixed on column, and the width of the strut beam is maximum, disassembling part molecule strut beam, the strut beam
Width become smaller.
7. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the quantity of the strut beam is multiple, and the width of each strut beam is unequal, and one end is removably secured
On the column；
According to the internal diameter of the tubular part, a strut beam is selected to be fixed on column.
8. tubular part hardness measurement fixture according to claim 1, it is characterised in that:
Wherein, the strut beam is cylindrical body, cuboid or triangular prism.
9. tubular part hardness measurement fixture according to claim 3, it is characterised in that:
Wherein, the top surface of the jaw is horizontal plane.
10. tubular part hardness measurement fixture according to claim 3, it is characterised in that:
Wherein, the angle of the inverted V-shaped bottom surface of the jaw is 120 °~170 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104971.3A CN109632473A (en) | 2019-02-01 | 2019-02-01 | A kind of tubular part hardness measurement fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104971.3A CN109632473A (en) | 2019-02-01 | 2019-02-01 | A kind of tubular part hardness measurement fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109632473A true CN109632473A (en) | 2019-04-16 |
Family
ID=66064835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910104971.3A Pending CN109632473A (en) | 2019-02-01 | 2019-02-01 | A kind of tubular part hardness measurement fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109632473A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556387A (en) * | 2004-01-06 | 2004-12-22 | 武汉大学 | Portable full digital direct testing universal hardness meter |
| WO2008055324A2 (en) * | 2006-11-07 | 2008-05-15 | Stanislav Nestorov | Clamping device and retractor system using the same |
| US20080257061A1 (en) * | 2007-04-17 | 2008-10-23 | Abbott Laboratories Vascular Enterprises Limited | Gripping fixture |
| CN201892644U (en) * | 2010-12-01 | 2011-07-06 | 洛阳中创重型机械有限公司 | Rockwell hardness measuring apparatus of large-size casting and forging piece |
| CN102879263A (en) * | 2012-10-15 | 2013-01-16 | 上海锅炉厂有限公司 | Fixture for testing hardness and application method |
| CN107884265A (en) * | 2017-12-13 | 2018-04-06 | 江苏方天电力技术有限公司 | Leeb Hardness Tester clamping device is used in a kind of conduit hardness detection |
| CN207816697U (en) * | 2017-12-13 | 2018-09-04 | 江苏方天电力技术有限公司 | A kind of conduit hardness detection Leeb Hardness Tester clamping device |
| CN108620478A (en) * | 2018-04-27 | 2018-10-09 | 佛山市奔达普菲自动化有限公司 | Anti-deformation punching pipes diel |
-
2019
- 2019-02-01 CN CN201910104971.3A patent/CN109632473A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556387A (en) * | 2004-01-06 | 2004-12-22 | 武汉大学 | Portable full digital direct testing universal hardness meter |
| WO2008055324A2 (en) * | 2006-11-07 | 2008-05-15 | Stanislav Nestorov | Clamping device and retractor system using the same |
| US20080257061A1 (en) * | 2007-04-17 | 2008-10-23 | Abbott Laboratories Vascular Enterprises Limited | Gripping fixture |
| CN201892644U (en) * | 2010-12-01 | 2011-07-06 | 洛阳中创重型机械有限公司 | Rockwell hardness measuring apparatus of large-size casting and forging piece |
| CN102879263A (en) * | 2012-10-15 | 2013-01-16 | 上海锅炉厂有限公司 | Fixture for testing hardness and application method |
| CN107884265A (en) * | 2017-12-13 | 2018-04-06 | 江苏方天电力技术有限公司 | Leeb Hardness Tester clamping device is used in a kind of conduit hardness detection |
| CN207816697U (en) * | 2017-12-13 | 2018-09-04 | 江苏方天电力技术有限公司 | A kind of conduit hardness detection Leeb Hardness Tester clamping device |
| CN108620478A (en) * | 2018-04-27 | 2018-10-09 | 佛山市奔达普菲自动化有限公司 | Anti-deformation punching pipes diel |
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