CN106914763A - A kind of low stress fixture for metal specimen cutting test - Google Patents
A kind of low stress fixture for metal specimen cutting test Download PDFInfo
- Publication number
- CN106914763A CN106914763A CN201510990268.9A CN201510990268A CN106914763A CN 106914763 A CN106914763 A CN 106914763A CN 201510990268 A CN201510990268 A CN 201510990268A CN 106914763 A CN106914763 A CN 106914763A
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- CN
- China
- Prior art keywords
- trapezoid block
- block
- hole
- withstanding tight
- test specimen
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a kind of low stress fixture for metal specimen cutting test,It is characterised by,Including lower bottom base [1],Middle base [2],Upper bed-plate [3],Upper bed-plate [3] is provided with L-shaped through hole,Middle base [2] is provided with the square mounting hole for running through,Square test specimen [8] sequentially passes through L-shaped through hole and square mounting hole,The bottom surface of square test specimen [8] is pressed on the upper surface of lower bottom base [1],Also include the first withstanding tight block [A] and the second withstanding tight block [B],First withstanding tight block [A] and the second withstanding tight block [B] are arranged vertically in L-shaped through hole,Square test specimen [8] is positioned by orthogonal first datum level and the second datum level,First withstanding tight block [A] holds out against the opposite face of the first datum level,Second withstanding tight block [B] holds out against the opposite face of the second datum level,By screw [4] by lower bottom base [1],Middle base [2],Upper bed-plate [3] fixation is integrally formed.
Description
Technical field
The present invention relates to a kind of low stress fixture for metal specimen cutting test, it is particularly suited for mark
Metalloid test specimen carries out the measurement and research of cutting surface residual stress.This fixture can greatly weaken test specimen folder
Influence of the clamp force to test specimen finished surface residual stress, with reliability and security higher.
Background technology
Machinery or machine components build inside and can produce residual stress in the fabrication process.Component is residual when manufacturing
Residue stress is the reason for defective workmanship such as being deformed and ftracture, and the residual stress processed inside rear part
The various mechanical performances of the materials such as corrosion and fatigue intensity will be had influence on.Therefore, accurate measurement part processing
The residual stress on surface, has great importance to improving part corrosion resistance and fatigue life.
It is material-saving in actual experiment, reduces cost, the size of metal specimen is typically small,
Produced clamping force is relatively large when being now clamped to metal specimen, and part can be caused to add in machinery
Small deformation is generated before work, after test specimen is machined, grips power release again can be to examination
The deformation quantity of part produces influence, and the measured value and actual value of part finished surface residual stress are most caused at last
It is not inconsistent.
This patent provides a kind of low stress fixture for metal specimen cutting test, can greatly cut
Weak clamping force of test piece, so as to ensure the authenticity and reliability of part finished surface measured value.
The content of the invention
1st, purpose
In order to overcome above mentioned problem, the present invention to provide a kind of low stress folder for metal specimen cutting test
Tool, can greatly weaken clamping force of test piece, thus ensure the authenticity of part finished surface measured value with
Reliability.
2nd, technical scheme
For achieving the above object, answered for the low of metal specimen cutting test the invention provides a kind of
Power fixture, is characterised by,
Including lower bottom base [1], middle base [2], upper bed-plate [3], upper bed-plate [3] is provided with L-shaped through hole, in
Base [2] is provided with the square mounting hole for running through, and square test specimen [8] sequentially passes through L-shaped through hole and square installation
Hole, the bottom surface of square test specimen [8] is pressed on the upper surface of lower bottom base [1],
Also include the first withstanding tight block [A] and the second withstanding tight block [B], the first withstanding tight block [A] and the second withstanding tight block [B]
It is arranged vertically in L-shaped through hole, square test specimen [8] is by orthogonal first datum level and the second base
Quasi- face is positioned, and the first withstanding tight block [A] holds out against the opposite face of the first datum level, the second withstanding tight block [B] top
The opposite face of tight second datum level.
This fixture square shaped test specimen [8] by way of circumferentially compressing is fixed, due to square shaped examination
First datum level and the second datum level and opposite face of part [8] are fixed effect, therefore need not
Excessive thrust is to be capable of achieving the fixation of square shaped test specimen, and test specimen Light deformation is minimum in compaction process, makes
Metal specimen cutting test is carried out with this fixture can greatly cut down thrust to test specimen finished surface residual stress
Deng influence.
There is positioning four sides of this fixture square shaped test specimen and compresses, square shaped test specimen good fixing effect,
Reliability is higher.
By screw [4] by lower bottom base [1], middle base [2], upper bed-plate [3] fixation is integrally formed.
Further,
For the low stress fixture of metal specimen cutting test, it is characterised by, the first withstanding tight block [A] includes the
One trapezoid block [5], the second trapezoid block [6] and countersunk head adjusting screw [11], the first trapezoid block [5] inclined-plane and second
The inclined-plane of trapezoid block [6] is fitted, and circular hole, adjusting screw [11] are provided between the first trapezoid block [5] upper and lower surface
Do not contacted with circular-hole internal-wall, precessional motion is done in adjusting screw [11] bottom along the screwed hole on middle base [2],
The changing of the relative positions relative with the second trapezoid block [6] of first trapezoid block [5] inclined-plane, realizes the second trapezoid block [6] and square examination
The opposite face of the datum level of part [8] first compresses the regulation of degree；
Second withstanding tight block [B] includes the 3rd trapezoid block [9], the 4th trapezoid block [10] and countersunk head adjusting screw [7],
3rd trapezoid block [9] inclined-plane fits with the inclined-plane of the 4th trapezoid block [10], the 3rd trapezoid block [9] upper and lower surface
Between be provided with circular hole, countersunk head adjusting screw [7] is not contacted with circular-hole internal-wall, countersunk head adjusting screw [7] bottom edge
Screwed hole on middle base [2] does precessional motion, and the 3rd trapezoid block [9] and the 4th trapezoid block [10] are relatively wrong
It is dynamic, realize that the 4th trapezoid block [10] compresses the tune of degree with the opposite face of the datum level of square test specimen [8] second
Section.
Using the first trapezoid block [5] and the second trapezoid block [6], the 3rd trapezoid block [9] and the 4th trapezoid block [10]
Between the relative changing of the relative positions, by longitudinal direction screw thread pair thrust be converted into planar contact pair transverse direction thrust.
Further, lower bottom base [1] and the upper surface processing plane of square test specimen [8] are in 3-10 degree.
Carry out metal specimen cutting test using this fixture, obtained after experiment metal specimen finished surface with
There is certain angle in test specimen bottom surface, it is hard that the square test specimen is applied to beveling method measurement metal specimen finished surface
Change thickness degree etc..
Brief description of the drawings
Fig. 1 is the overall structure stereogram of low stress fixture of the present invention.
Fig. 2 is the overall structure top view of low stress fixture of the present invention.
Fig. 3 is the overall structure profile of low stress fixture of the present invention.
Specific embodiment
Specific embodiment of the invention is described further with reference to accompanying drawing：
A kind of low stress fixture for metal specimen cutting test, is characterised by,
Including lower bottom base 1, middle base 2, upper bed-plate 3, upper bed-plate 3 is provided with L-shaped through hole, middle base
2 are provided with the square mounting hole for running through, and square test specimen 8 sequentially passes through L-shaped through hole and square mounting hole,
The bottom surface of square test specimen 8 is pressed on the upper surface of lower bottom base 1,
Also include the first withstanding tight block A and the second withstanding tight block B, the first withstanding tight block A and the second withstanding tight block B
It is arranged vertically in L-shaped through hole, square test specimen 8 passes through orthogonal first datum level and the second base
Quasi- face is positioned, and the first withstanding tight block A holds out against the opposite face of the first datum level, the second withstanding tight block B tops
The opposite face of tight second datum level.
This fixture square shaped test specimen 8 by way of circumferentially compressing is fixed, due to square shaped examination
First datum level and the second datum level and opposite face of part 8 are fixed effect, therefore need not
Excessive thrust is to be capable of achieving the fixation of square shaped test specimen, and test specimen Light deformation is minimum in compaction process, makes
Metal specimen cutting test is carried out with this fixture can greatly cut down thrust to test specimen finished surface residual stress
Deng influence.
There is positioning four sides of this fixture square shaped test specimen and compresses, square shaped test specimen good fixing effect,
Reliability is higher.
By screw 4 by lower bottom base 1, middle base 2, upper bed-plate 3 is fixed and is integrally formed.
Further,
For the low stress fixture of metal specimen cutting test, it is characterised by, the first withstanding tight block A includes the
One trapezoid block 5, the second trapezoid block 6 and countersunk head adjusting screw 11, the inclined-plane of the first trapezoid block 5 and the second ladder
The inclined-plane of shape block 6 is fitted, and circular hole, adjusting screw 11 are provided between the upper and lower surface of the first trapezoid block 5
Do not contacted with circular-hole internal-wall, precessional motion is done in the bottom of adjusting screw 11 along the screwed hole on middle base 2, the
The inclined-plane of one trapezoid block 5 and the relative changing of the relative positions of the second trapezoid block 6, realize the second trapezoid block 6 with square test specimen 8
The opposite face of one datum level compresses the regulation of degree；
Second withstanding tight block B includes the 3rd trapezoid block 9, the 4th trapezoid block 10 and countersunk head adjusting screw 7, the
The inclined-plane of three trapezoid block 9 fits with the inclined-plane of the 4th trapezoid block 10, between the upper and lower surface of the 3rd trapezoid block 9
Circular hole is provided with, countersunk head adjusting screw 7 is not contacted with circular-hole internal-wall, the bottom of countersunk head adjusting screw 7 is along midsole
Screwed hole on seat 2 does precessional motion, the 3rd trapezoid block 9 and the relative changing of the relative positions of the 4th trapezoid block 10, realizes
4th trapezoid block 10 compresses the regulation of degree with the opposite face of the datum level of square test specimen 8 second.
Using the first trapezoid block 5 and the second trapezoid block 6, the 3rd trapezoid block 9 and the 4th trapezoid block 10 it
Between the relative changing of the relative positions, by longitudinal direction screw thread pair thrust be converted into planar contact pair transverse direction thrust.
Further, lower bottom base 1 and the upper surface processing plane of square test specimen 8 are in 3-10 degree.
Specifically used method：
The first step：Mounting seat part.Base portion is by lower bottom base 1, middle base 2, upper bed-plate 3 three
It is grouped into, three parts are stacked on top of one another, all screwed holes in three parts is alignd, fastened with screw 4.
Second step：Place square test specimen 8.Square test specimen 8 is positioned over L-shaped through hole and square installation
In hole, test specimen side overlaps with the vertical plane of the L-shaped through hole of upper bed-plate 3.
3rd step：Place the first withstanding tight block A and the second withstanding tight block B.
The first withstanding tight block A and the second withstanding tight block B are respectively placed in L-shaped through hole first, the second ladder
The bottom surface of shape block 6 overlaps with the upper surface of middle base 2, and the vertical side of the second trapezoid block 6 is with square test specimen 8
Side overlaps, and the vertical side of the first trapezoid block 5 overlaps with L-shaped through hole vertical side.
The bottom surface of 4th trapezoid block 10 overlaps with the upper surface of middle base 2, the vertical side of the 4th trapezoid block 10
Overlapped with the side of square test specimen 8, vertical side and the L-shaped through hole vertical side weight of the 3rd trapezoid block 9
Close.
Present invention specific implementation (application) approach is a lot, these are only the preferred embodiment of the present invention,
Use trapezoid block to fasten cutting test test specimen to add test specimen to weaken clamping force it should be pointed out that any
The fixture of work surface residual stress influence belongs to the content that this patent is included, for the skill of the art
It is any to make some improvement under the premise without departing from the principles of the invention for art personnel, this
A little improvement also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of low stress fixture for metal specimen cutting test, is characterised by,
Including lower bottom base [1], middle base [2], upper bed-plate [3], upper bed-plate [3] is provided with L-shaped through hole,
Middle base [2] is provided with the square mounting hole for running through, and square test specimen [8] sequentially passes through L-shaped through hole and square
Mounting hole, the bottom surface of square test specimen [8] is pressed on the upper surface of lower bottom base [1],
Also include the first withstanding tight block [A] and the second withstanding tight block [B], the first withstanding tight block [A] and the second withstanding tight block [B]
It is arranged vertically in L-shaped through hole, square test specimen [8] is by orthogonal first datum level and the second base
Quasi- face is positioned, and the first withstanding tight block [A] holds out against the opposite face of the first datum level, the second withstanding tight block [B] top
The opposite face of tight second datum level,
By screw [4] by lower bottom base [1], middle base [2], upper bed-plate [3] fixation is integrally formed.
2. the low stress fixture for metal specimen cutting test according to claim 1, feature
It is, for the low stress fixture of metal specimen cutting test, to be characterised by, the first withstanding tight block [A] includes
First trapezoid block [5], the second trapezoid block [6] and countersunk head adjusting screw [11], the first trapezoid block [5] inclined-plane with
The inclined-plane of the second trapezoid block [6] is fitted, and circular hole is provided between the first trapezoid block [5] upper and lower surface, regulation
Screw [11] is not contacted with circular-hole internal-wall, and adjusting screw [11] bottom is done along the screwed hole on middle base [2] and revolved
Enter motion, the second trapezoid block [6] is realized in the changing of the relative positions relative with the second trapezoid block [6] of the first trapezoid block [5] inclined-plane
Opposite face with the datum level of square test specimen [8] first compresses the regulation of degree；
Second withstanding tight block [B] includes the 3rd trapezoid block [9], the 4th trapezoid block [10] and countersunk head adjusting screw
[7], the 3rd trapezoid block [9] inclined-plane fits with the inclined-plane of the 4th trapezoid block [10], the 3rd trapezoid block [9]
Circular hole is provided between upper and lower surface, countersunk head adjusting screw [7] is not contacted with circular-hole internal-wall, countersunk head adjusting screw
[7] precessional motion, the 3rd trapezoid block [9] and the 4th trapezoid block are done in bottom along the screwed hole on middle base [2]
[10] the relative changing of the relative positions, realizes the relative face pressure of the 4th trapezoid block [10] and the datum level of square test specimen [8] second
The regulation of tight degree.
3. the low stress fixture for metal specimen cutting test according to claim 1, feature
It is that lower bottom base [1] is in 3-10 degree with the upper surface processing plane of square test specimen [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990268.9A CN106914763A (en) | 2015-12-24 | 2015-12-24 | A kind of low stress fixture for metal specimen cutting test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990268.9A CN106914763A (en) | 2015-12-24 | 2015-12-24 | A kind of low stress fixture for metal specimen cutting test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106914763A true CN106914763A (en) | 2017-07-04 |
Family
ID=59459450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510990268.9A Pending CN106914763A (en) | 2015-12-24 | 2015-12-24 | A kind of low stress fixture for metal specimen cutting test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106914763A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29906191U1 (en) * | 1999-04-07 | 1999-06-24 | Horst Witte Entwicklungs- und Vertriebs-KG, 21369 Nahrendorf | Brace for connecting receiving tubes for a system for assembling devices for clamping workpieces |
| CN101733665A (en) * | 2009-12-11 | 2010-06-16 | 上海瑞尔实业有限公司 | Auxiliary positioning and pre-locking mechanism used for clamping parts in metal cutting |
| CN201618988U (en) * | 2010-02-08 | 2010-11-03 | 嘉兴迈思特管件制造有限公司 | Allotype pipe fitting turning clamp |
| CN103056687A (en) * | 2012-12-28 | 2013-04-24 | 北京航空航天大学 | Benchmark repair clamp for vane |
| CN103639757A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | Positioning tool for square part drilling |
| CN104237005A (en) * | 2014-09-22 | 2014-12-24 | 西北工业大学 | Split type clamp used for testing shear strength of ceramic matrix composite |
-
2015
- 2015-12-24 CN CN201510990268.9A patent/CN106914763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29906191U1 (en) * | 1999-04-07 | 1999-06-24 | Horst Witte Entwicklungs- und Vertriebs-KG, 21369 Nahrendorf | Brace for connecting receiving tubes for a system for assembling devices for clamping workpieces |
| CN101733665A (en) * | 2009-12-11 | 2010-06-16 | 上海瑞尔实业有限公司 | Auxiliary positioning and pre-locking mechanism used for clamping parts in metal cutting |
| CN201618988U (en) * | 2010-02-08 | 2010-11-03 | 嘉兴迈思特管件制造有限公司 | Allotype pipe fitting turning clamp |
| CN103056687A (en) * | 2012-12-28 | 2013-04-24 | 北京航空航天大学 | Benchmark repair clamp for vane |
| CN103639757A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | Positioning tool for square part drilling |
| CN104237005A (en) * | 2014-09-22 | 2014-12-24 | 西北工业大学 | Split type clamp used for testing shear strength of ceramic matrix composite |
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|---|---|---|---|
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170704 |
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| WD01 | Invention patent application deemed withdrawn after publication |