CN109632471A - A kind of novel pulling force experiment machine fixture - Google Patents
A kind of novel pulling force experiment machine fixture Download PDFInfo
- Publication number
- CN109632471A CN109632471A CN201811576066.XA CN201811576066A CN109632471A CN 109632471 A CN109632471 A CN 109632471A CN 201811576066 A CN201811576066 A CN 201811576066A CN 109632471 A CN109632471 A CN 109632471A
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- China
- Prior art keywords
- fixture block
- strain gauge
- rotating nuts
- pulling force
- force experiment
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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
- 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
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
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- 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 present invention relates to a kind of novel pulling force experiment machine fixtures, belong to test and measuring field, including rotating nuts, upper fixture block, upper rotating nuts, lower rotating nuts, strain gauge collet, gripping block and lower fixture block.Connector on its middle cross beam with tensile testing machine is connect by the upper fixture block by bolt；The rotating nuts are for locking upper fixture block；The upper rotating nuts pass through with upper fixture block to be threadedly engaged, for installing one end of strain gauge；The lower rotating nuts pass through with strain gauge collet to be threadedly engaged, for installing the other end of strain gauge；The strain gauge collet is installed in the half slot of lower fixture block, and is fixed with gripping block；The lower fixture block is connected by bolt with the bottom fitting of tensile testing machine, and rotating nuts are for locking lower fixture block.The configuration of the present invention is simple reduces a possibility that strain gauge generates sliding in calibration process convenient for the installation and removal of strain gauge when calibration, can be achieved to stretch during a test and the test of compression.
Description
Technical field
The present invention relates to a kind of novel pulling force experiment machine fixtures, belong to test and measuring field.
Background technique
Tensile testing machine is commonly used to the performance tests such as stretch measured material, compress.The matched folder of tensile testing machine
Tool usually can be achieved to carry out installation fixation to rodlike, blocky, the Filamentous material of rule.
Strain transducer is widely used, and accuracy and reliability is strain accurate an important factor for measuring, therefore right
The calibration of strain transducer has a very important significance.For the ease of the development of strain gauge calibration and pushing away for calibrating installation
Extensively, widely used tensile testing machine is selected as the main body of calibrating installation, and the power of strain gauge deformation, but conventional installation are provided
Fixture is difficult to realize installation and fixation to strain gauge, and some fixtures may be implemented in compression or the test of drawing process, but be difficult to
It is realized in strain gauge full scale in a testing experiment, the test realizing compression and stretching.The installation of strain gauge is fixed, and is
Strain meter calibrating necessary condition, in tensile and compression test, installs fixture it is unreasonable due to cause strain gauge can
The opposite sliding that can be generated, the calibration to strain gauge is very unfavorable.
Summary of the invention
In view of the above problems, the present invention devises a kind of novel pulling force experiment machine fixture, and structure is simple, when calibration
Convenient for the installation and removal of strain gauge, a possibility that strain gauge generates sliding in calibration process is reduced, in a test process
In can be achieved stretch and compression test.
The present invention adopts the following technical scheme that:
A kind of novel pulling force experiment machine fixture, it is characterised in that: including rotating nuts, upper fixture block, upper rotating nuts, lower rotation spiral shell
Mother, strain gauge collet, gripping block and lower fixture block；The upper fixture block passes through bolt for connecing on its middle cross beam with tensile testing machine
Head connection；The rotating nuts are for locking upper fixture block；The upper rotating nuts pass through with upper fixture block to be threadedly engaged, for installing
One end of strain gauge；The lower rotating nuts pass through with strain gauge collet to be threadedly engaged, for installing the other end of strain gauge；Institute
The strain gauge collet stated is installed in the half slot of lower fixture block, and is fixed with gripping block；The lower fixture block passes through bolt
It is connected with the bottom fitting of tensile testing machine, rotating nuts are for locking lower fixture block.
A kind of above-mentioned novel pulling force experiment machine fixture, the bottom axle center of the upper fixture block have internal screw thread, side middle part to have U
There are straight trough in type groove and side one end.
There is annular knurl screw thread in a kind of above-mentioned novel pulling force experiment machine fixture, the rotating nuts outside.
There are straight trough in a kind of above-mentioned novel pulling force experiment machine fixture, the end face of the upper rotating nuts, and one end side has outer
Screw thread, such as the screw thread of M16x1.25；Other end side, which has, is divided into 90 degree between round deep hole, such as three, depth is 6~8mm,
Diameter is the deep hole of 6mm.
There are internal screw thread, side one in a kind of above-mentioned novel pulling force experiment machine fixture, one end axle center of the strain gauge collet
End has straight trough, side middle part to have U-type groove.
A kind of above-mentioned novel pulling force experiment machine fixture, having half slot, side in the gripping block, there are two symmetrical heavy
Hole.
A kind of above-mentioned novel pulling force experiment machine fixture, the half slot medial surface of the lower fixture block there are two internal thread hole,
Fixation for gripping block.
The invention has the advantages that the present invention devises a kind of strain gauge calibrating installation, upper fixture block and upper rotating nuts
And lower rotating nuts and the U-type groove in strain gauge collet, straight trough, convenient for the installation and removal of strain gauge；Tighten rotating nuts
It when with lower rotating nuts, sits up straight strain gauge in clamped condition always, stretching and compression examination can be done during a test
It tests, a possibility that strain gauge produces relative sliding when reducing calibration.
Detailed description of the invention
Fig. 1 is a kind of novel pulling force experiment machine clamp structure schematic diagram.
Fig. 2 is upper rotating nuts structural schematic diagram.
Fig. 3 is upper fixture block structural schematic diagram.
Fig. 4 is upper rotating nuts structural schematic diagram.
Fig. 5 is strain gauge chuck structure schematic diagram.
Fig. 6 is gripping block structural schematic diagram.
Fig. 7 is lower fixture block structural schematic diagram.
Figure label title: 1, rotating nuts；2, upper fixture block；3, upper rotating nuts；4, strain gauge；5, lower rotating nuts；
6, strain gauge collet；7, gripping block；8, lower fixture block；9 rotating nuts.
Specific embodiment
The present invention is got information about to allow those skilled in the art to be more clear, below in conjunction with attached drawing, to the present invention
It is further described.
In the description of the present invention, it is to be understood that, the orientation of instructions such as term " top ", " middle part ", " lower part " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
A kind of novel pulling force experiment machine fixture, including rotating nuts 1, upper fixture block 2, upper rotating nuts 3, lower rotating nuts 5,
Strain gauge collet 6, gripping block 7 and lower fixture block 8.
2 upper cylindrical of upper fixture block is radially provided with circular through hole, by bolt by the middle cross of itself and tensile testing machine
Connector connection on beam；The rotating nuts 1 are used to lock the connector on the middle cross beam of upper fixture block 2 and tensile testing machine；
The external screw thread of the upper rotating nuts 3 and the screw-internal thread fit of upper fixture block 2, one of strain gauge 4, which sits up straight, is placed in folder
In the U-type groove of block 2, the protection pipe of strain gauge 4 is in the straight trough of upper fixture block 2 and upper rotating nuts 3；
The external screw threads of the lower rotating nuts 5 and 6 screw-internal thread fit of strain gauge collet, another of strain gauge 4 are sat up straight and are placed in
In the U-type groove of strain gauge collet 6, the protection pipe of strain gauge 4 is in the straight trough of lower rotating nuts 5 and strain gauge collet 6；
The strain gauge collet 6 is installed in the half slot of lower fixture block 8, is fastened gripping block 7 and lower fixture block 8 with bolt；
The 8 lower cylindrical shape of lower fixture block is radially provided with circular through hole, by bolt by the bottom fitting of itself and tensile testing machine
Connection；The rotating nuts 9 are locked for the bottom fitting of lower fixture block 8 and tensile testing machine.
In use, tensile testing machine middle cross beam is first moved to suitable position, rotation rotating nuts 1 make it drop to upper folder
2 top of upper fixture block is installed in the connector on the middle cross beam of tensile testing machine, and makes in upper fixture block 2 by the suitable position of block 2
The hole of connector on circular through hole and middle cross beam is aligned, and is fixed the two in bolt insertion through-hole, rotation rotating nuts 1 will be upper
Connector locking on fixture block 2 and middle cross beam.Similarly, the bottom fitting of lower fixture block 8 and tensile testing machine is locked.
It rotates lower rotating nuts 5 and arrives suitable position, and be aligned the straight trough of its straight trough and strain gauge collet 6, by strain gauge 4
One sit up straight and be installed in the U-type groove of strain gauge collet 6, keep 4 pillar of strain gauge and strain gauge collet 6 coaxial, rotate backspin
Turn nut 5 is fixed on strain gauge 4 in lower rotating nuts 5 and strain gauge collet 6 under pretightning force effect；Rotating nuts in rotation
3 arrive suitable position, and are aligned its straight trough and the straight trough of upper fixture block 2, another by strain gauge 4 sits up straight and be installed to upper fixture block 2
U-type groove in, keep 4 pillar of strain gauge and upper fixture block 2 coaxial, rotating nuts 3 keep strain gauge 4 solid under pretightning force effect in rotation
It is scheduled in rotating nuts 3 and upper fixture block 2；Tensile testing machine crossbeam is adjusted to suitable position, makes strain gauge collet 6 in lower fixture block
In 8 half slot, with bolt that gripping block 7 and lower fixture block 8 is fixed, strain gauge collet 6 is fixed under pretightning force effect；Benefit
With the deep hole on 3 side of rotating nuts, tightened with tool；The bolt in 7 counterbore of gripping block is tightened with tool, finally
Lower rotating nuts 5 are tightened using same method.
The foregoing is merely relatively good embodiments of the invention, are not intended to limit the invention, all in essence of the invention
Within mind and principle, made any modification, replacement, improvement etc. be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of novel pulling force experiment machine fixture, it is characterised in that: including rotating nuts, upper fixture block, upper rotating nuts, lower rotation
Nut, strain gauge collet, gripping block and lower fixture block, the upper fixture block will be on its middle cross beams with tensile testing machine by bolt
Connector connection；The rotating nuts are for locking upper fixture block；The upper rotating nuts pass through with upper fixture block to be threadedly engaged, for pacifying
Fill one end of strain gauge；The lower rotating nuts pass through with strain gauge collet to be threadedly engaged, for installing the other end of strain gauge；
The strain gauge collet is installed in the half slot of lower fixture block, and is fixed with gripping block；The lower fixture block is by inserting
Pin is connected with the bottom fitting of tensile testing machine, and rotating nuts are for locking lower fixture block.
2. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: the bottom axle center of the upper fixture block has
There is U-type groove at internal screw thread, side middle part, and there is straight trough in side one end.
3. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: the rotating nuts end face center has
There are annular knurl and straight trough in internal thread hole, side.
4. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: the end face of the upper rotating nuts has
Straight trough, one end side have external screw thread, such as the screw thread of M161.25；Other end side, which has, is divided into 90 between round deep hole, such as three
Degree, depth are 6~8mm, and diameter is the deep hole of 6mm.
5. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: one end axis of the strain gauge collet
The heart has internal screw thread, side one end to have straight trough, side middle part to have U-type groove.
6. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: have in the gripping block half slot,
There are two symmetrical counterbores for side.
7. a kind of novel pulling force experiment machine fixture according to right 1, it is characterised in that: on the inside of the half slot of the lower fixture block
Face is there are two internal thread hole, the fixation for gripping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576066.XA CN109632471A (en) | 2018-12-22 | 2018-12-22 | A kind of novel pulling force experiment machine fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576066.XA CN109632471A (en) | 2018-12-22 | 2018-12-22 | A kind of novel pulling force experiment machine fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109632471A true CN109632471A (en) | 2019-04-16 |
Family
ID=66076574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576066.XA Pending CN109632471A (en) | 2018-12-22 | 2018-12-22 | A kind of novel pulling force experiment machine fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109632471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827539A (en) * | 2019-04-26 | 2019-05-31 | 中国计量科学研究院 | It is a kind of for straining the fixture of meter calibrating |
| CN110441127A (en) * | 2019-07-31 | 2019-11-12 | 共享装备股份有限公司 | A kind of casting sand tester tension crossover sub |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279137A (en) * | 2011-06-30 | 2011-12-14 | 西安交通大学 | Tangential fretting test device and test method thereof |
| CN203929507U (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | Combined metal pole cryogenic tensile test fixture |
| TWM523853U (en) * | 2015-12-31 | 2016-06-11 | Univ Far East | Sleeve type stretching process test fixture for thin plate |
| CN207832565U (en) * | 2018-03-08 | 2018-09-07 | 云南电网有限责任公司电力科学研究院 | A kind of experiment collet for wire tension experiment |
| CN108548716A (en) * | 2018-04-02 | 2018-09-18 | 北京航空航天大学 | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method |
| CN208060277U (en) * | 2018-03-31 | 2018-11-06 | 江苏道成不锈钢管业有限公司 | A kind of drawing experiment fixture of stainless steel card pressure connecting pipe |
-
2018
- 2018-12-22 CN CN201811576066.XA patent/CN109632471A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279137A (en) * | 2011-06-30 | 2011-12-14 | 西安交通大学 | Tangential fretting test device and test method thereof |
| CN203929507U (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | Combined metal pole cryogenic tensile test fixture |
| TWM523853U (en) * | 2015-12-31 | 2016-06-11 | Univ Far East | Sleeve type stretching process test fixture for thin plate |
| CN207832565U (en) * | 2018-03-08 | 2018-09-07 | 云南电网有限责任公司电力科学研究院 | A kind of experiment collet for wire tension experiment |
| CN208060277U (en) * | 2018-03-31 | 2018-11-06 | 江苏道成不锈钢管业有限公司 | A kind of drawing experiment fixture of stainless steel card pressure connecting pipe |
| CN108548716A (en) * | 2018-04-02 | 2018-09-18 | 北京航空航天大学 | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827539A (en) * | 2019-04-26 | 2019-05-31 | 中国计量科学研究院 | It is a kind of for straining the fixture of meter calibrating |
| CN110441127A (en) * | 2019-07-31 | 2019-11-12 | 共享装备股份有限公司 | A kind of casting sand tester tension crossover sub |
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| PB01 | Publication | ||
| 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: 20190416 |
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| WD01 | Invention patent application deemed withdrawn after publication |