CN208171747U - A kind of restraint device - Google Patents
A kind of restraint device Download PDFInfo
- Publication number
- CN208171747U CN208171747U CN201820668520.3U CN201820668520U CN208171747U CN 208171747 U CN208171747 U CN 208171747U CN 201820668520 U CN201820668520 U CN 201820668520U CN 208171747 U CN208171747 U CN 208171747U
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- Prior art keywords
- fixture block
- electromagnetism
- restraint device
- tested
- sample
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Abstract
The utility model relates to machinery manufacturing technology fields, disclose a kind of restraint device, including：First fixture block, the second fixture block and power supply unit；First fixture block and second fixture block are positioned opposite；First fixture block is internally provided with the first electromagnetism fixture block, and second fixture block is internally provided with the second electromagnetism fixture block；Said supply unit, for powering for the first electromagnetism fixture block and the second electromagnetism fixture block, to change the magnetic direction and magnetic field strength of the first electromagnetism fixture block and the second electromagnetism fixture block.The restraint device can not only adapt to the test specimen of multi-thickness, and can real-time control to the pressing force of sample to be tested.
Description
Technical field
The utility model relates to machinery manufacturing technology fields, more particularly to a kind of restraint device.
Background technique
The compression performance of plate-shaped metal material is the important mechanical index of material.The compression performance of thin plate metalloid material is surveyed
Examination, needs to clamp sample to be tested by restraint device.
The restraint device that GB/T 7314-2005 recommends at present contains clamping plate, leaf spring and all kinds of screws, and structure is complicated, makes
With inconvenience, be difficult to control the influence of frictional force, and easily occur the too early buckling of sample to be tested or when being higher than specified force it is still unyielding
It is bent.
Utility model content
(1) technical problems to be solved
The utility model aims to solve at least one of technical problem in aforementioned background art.
For this purpose, the restraint device can not only adapt to the examination of multi-thickness the utility model proposes a kind of restraint device
Part, and can real-time control to the pressing force of sample to be tested.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of restraint device and includes：First fixture block, the second fixture block
And power supply unit；
First fixture block and second fixture block are positioned opposite；
First fixture block is internally provided with the first electromagnetism fixture block, and second fixture block is internally provided with the second electric magnetic card
Block；
Said supply unit, for powering for the first electromagnetism fixture block and the second electromagnetism fixture block, described in changing
The magnetic direction and magnetic field strength of first electromagnetism fixture block and the second electromagnetism fixture block.
Wherein, first fixture block is electromagnetism fixture block；And/or second fixture block is electromagnetism fixture block.
Wherein, first fixture block and the first electromagnetism fixture block are wholely set, second fixture block and second electricity
Magnetic card block is wholely set.
Wherein, the first electromagnetism fixture block and the second electromagnetism fixture block are made by soft iron or silicon steel material.
Wherein, the cross-sectional shape of first fixture block and second fixture block is rectangle.
It wherein, further include scale；One end of the scale is fixed on the side of first fixture block；Alternatively, the scale
One end be fixed on the side of second fixture block.
(3) beneficial effect
Compared with prior art, the utility model has the following advantages that：
A kind of restraint device provided by the utility model, by the first electric magnetic card of output current control for adjusting power supply unit
Block and magnetic direction and magnetic field strength in the second electric magnetic card, to adjust the first fixture block and the second fixture block clamping force, this is about got one's things ready
Set the test specimen that can not only adapt to multi-thickness, and can real-time control to the pressing force of sample to be tested.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of restraint device of the utility model embodiment；
Fig. 2 is a kind of structural schematic diagram of the restraint device of the utility model embodiment in the case where constraining sample to be tested state；
In figure：The first fixture block of 1-；The second fixture block of 2-；3- power supply unit；4- scale；5- sample to be tested.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
A kind of restraint device of the utility model embodiment is specifically described in conjunction with attached drawing 1 to 2 first below.
The restraint device of the utility model embodiment, including：First fixture block 1, the second fixture block 2 and power supply unit 3；
First fixture block 1 and second fixture block 1 are positioned opposite；
First fixture block 1 is internally provided with the first electromagnetism fixture block, and second fixture block 2 is internally provided with the second electric magnetic card
Block；
Said supply unit 3 is used to power for the first electromagnetism fixture block and the second electromagnetism fixture block, described in changing
The magnetic direction and magnetic field strength of first electromagnetism fixture block and the second electromagnetism fixture block.
Restraint device provided by the embodiment of the utility model can be used for plate-shape metal room temperature compression test, above-mentioned when test
Restraint device and sample to be tested are installed according to the requirement of GB/T 7314-2005, and the first fixture block and the second fixture block are placed in
It tests on machine table top；After power supply unit is powered, the first electromagnetism fixture block and the second electromagnetism fixture block generate magnetic force, the first fixture block and second
Fixture block compresses sample to be tested, starts universal testing machine and sets loading method according to test requirements document, sets according on universal testing machine
The measured value of the force snesor and displacement sensor set adjusts the output electric current of power supply unit, to control whether sample to be tested is sent out
Raw buckling according to obtaining required material deformation and the curve of load, and then calculates the compressive strength of sample to be tested.
Fig. 1 is a kind of structural schematic diagram of restraint device of the utility model embodiment, as shown in Figure 1, including：First fixture block
1, the second fixture block 2 and power supply unit 3；
First fixture block 1 and second fixture block 2 are positioned opposite；
First fixture block 1 is internally provided with the first electromagnetism fixture block, and second fixture block 2 is internally provided with the second electric magnetic card
Block；
Said supply unit 3 is used to power for the first electromagnetism fixture block and the second electromagnetism fixture block, described in changing
The magnetic direction and magnetic field strength of first electromagnetism fixture block and the second electromagnetism fixture block.
Specifically, the first fixture block 1 and the second fixture block 2 are positioned opposite, the middle position structure of the first fixture block 1 and the second fixture block 2
The space of sample to be tested is tested when at test；
First fixture block 1 is internally provided with the first electromagnetism fixture block, and the second fixture block 2 is internally provided with the second electromagnetism fixture block, and first
Electromagnetism fixture block and the second electromagnetism fixture block are positioned opposite；
Power supply unit 3 is used to power for the first electromagnetism fixture block and the second electromagnetism fixture block, by the output for adjusting power supply unit 3
Controlled current flow system the first electromagnetism fixture block and magnetic direction and magnetic field strength in the second electric magnetic card, and then according to the ruler of sample to be tested
It is very little to adjust 2 clamping force of the first fixture block 1 and the second fixture block, wherein power supply unit 3 can be DC power supply.
It should be noted that the first fixture block 1 and second can be adjusted in real time by the output electric current for adjusting power supply unit 3
Relative distance between fixture block 2 increases the defeated of power supply unit 3 when needing the first fixture block 1 and the second fixture block 2 clamps sample to be tested
Electric current out, test need the first fixture block 1 and the second fixture block 2 to gradually reduce power supply unit 3 when unclamping sample to be tested after completing
Export electric current.
It is understood that the restraint device can not only adapt to the test specimen of multi-thickness, and being capable of real-time control pair
The pressing force of sample to be tested.
It should be noted that the quantity of power supply unit 3 can be two, one of those is used to supply for the first electromagnetism fixture block
Electricity, another is used to power for the second electromagnetism fixture block.
Fig. 2 is a kind of structural schematic diagram of the restraint device of the utility model embodiment in the case where constraining sample to be tested state, such as
It shown in Fig. 2, is illustrated so that sample to be tested 5 is rectangle as an example, the quantity of power supply unit 3 can be two, and power supply unit 3 is straight
Galvanic electricity source, one of those is used to power for the first electromagnetism fixture block, another is used to power for the second electromagnetism fixture block, direct current
After source is powered, the first electromagnetism fixture block and the second electromagnetism fixture block generate magnetic force, and the first electromagnetism fixture block and the second electromagnetism fixture block produce
Raw magnetic force causes the first fixture block and the second fixture block attracting, so that simultaneously the two compresses sample to be tested, starting universal testing machine is simultaneously
It sets test requirements document and sets loading method, DC power supply is adjusted according to universal test force snesor and displacement sensor value
Electric current is exported, to control whether sample to be tested occurs buckling, obtains required material deformation and the curve of load, and then calculate plate
The compressive strength of material.
Further, embodiment according to the present utility model, first fixture block 1 and/or second fixture block 2 are electromagnetism
Fixture block.
Wherein, it is illustrated so that the first fixture block 1 and the second fixture block 2 are electromagnetism fixture block as an example, the first fixture block and the first electricity
Magnetic card block is wholely set, and the second fixture block and the second electromagnetism fixture block are wholely set, wherein the first electromagnetism fixture block is inside the first fixture block
Position inside the second fixture block of position and the second electromagnetism fixture block be not especially limited.As long as in direct current
After source is powered, the first electromagnetism fixture block and the second electromagnetism fixture block generate magnetic force, and the first electromagnetism fixture block and the second electromagnetism fixture block produce
Raw magnetic force causes the first fixture block and the second fixture block attracting, so that simultaneously the two compresses sample to be tested.
It is understood that above-mentioned first electromagnetism fixture block and above-mentioned second electromagnetism fixture block are by soft iron or silicon steel material system
Make.
It is understood that the first electromagnetism fixture block and the second electromagnetism fixture block are by the faster soft iron of demagnetization or silicon steel material system
Make.
In addition, embodiment according to the present utility model, the cross-sectional shape of first fixture block 1 and second fixture block 2
It is rectangle.
It is understood that the seal face of the first fixture block 1 can be engaged with the left side of sample to be tested, the second fixture block 2
Seal face can be engaged with the right side of sample to be tested 5.
In addition, embodiment according to the present utility model, further includes scale 4；One end of the scale 4 is fixed on described first
The side of fixture block 1；
Alternatively, one end of the scale 4 is fixed on the side of second fixture block 2.
Wherein, it is illustrated so that one end of scale 4 is fixed on the side of the first fixture block 1 as an example, one end of scale 4 can lead to
The side that screw fixes above-mentioned first fixture block 1 is crossed, others may be implemented for one end of scale 4 to be fixed on the second fixture block 2
The scheme of side can also be to be not listed one by one out in the utility model embodiment.
One end of scale 4 can be fixed on the top of the side of the first fixture block 1；Alternatively, one end of scale 4 can be fixed on
The middle part of the side of first fixture block 1；Alternatively, one end of scale 4 can be fixed on the lower part of the side of the first fixture block 1.4 phase of scale
The position of the side of first fixture block 1 is not specifically limited, if its can quantitatively read it is to be measured in compression process
The deformation in sample thickness direction.
It should be noted that can quantitatively read sample to be tested thickness in compression process by the scale of above-mentioned setting
The deformation in direction.
When test, above-mentioned restraint device and sample to be tested are installed according to the requirement of GB/T 7314-2005, the first card
Block and the second fixture block are placed on test machine table top；After DC power supply is powered, the first electromagnetism fixture block and the second electromagnetism fixture block are equal
Magnetic force can be generated, above-mentioned magnetic force can make the first fixture block and the second fixture block compresses sample to be tested, starting universal testing machine and basis
Test requirements document sets loading method, according to the measured value of the force snesor and displacement sensor that are arranged on universal testing machine, adjusts
The output electric current of DC power supply can be quantified to control whether sample to be tested occurs buckling, and by the scale of above-mentioned setting
Ground reads sample to be tested in compression process along the deformation of thickness direction, according to obtaining required material deformation and the curve of load,
And then calculate the compressive strength of sample to be tested.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of restraint device, which is characterized in that including：First fixture block, the second fixture block and power supply unit；
First fixture block and second fixture block are positioned opposite；
First fixture block is internally provided with the first electromagnetism fixture block, and second fixture block is internally provided with the second electromagnetism fixture block；
Said supply unit, for powering for the first electromagnetism fixture block and the second electromagnetism fixture block, to change described first
The magnetic direction and magnetic field strength of electromagnetism fixture block and the second electromagnetism fixture block.
2. restraint device as described in claim 1, which is characterized in that first fixture block is electromagnetism fixture block；
And/or second fixture block is electromagnetism fixture block.
3. restraint device as described in claim 1, which is characterized in that first fixture block and the first electromagnetism fixture block one
Setting, second fixture block and the second electromagnetism fixture block are wholely set.
4. restraint device as described in claim 1, which is characterized in that the first electromagnetism fixture block and the second electromagnetism fixture block
It is made by soft iron or silicon steel material.
5. restraint device as described in claim 1, which is characterized in that the cross section of first fixture block and second fixture block
Shape is rectangle.
6. such as restraint device described in any one of claim 1 to 5, which is characterized in that further include scale；One end of the scale
It is fixed on the side of first fixture block；
Alternatively, one end of the scale is fixed on the side of second fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668520.3U CN208171747U (en) | 2018-05-07 | 2018-05-07 | A kind of restraint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668520.3U CN208171747U (en) | 2018-05-07 | 2018-05-07 | A kind of restraint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208171747U true CN208171747U (en) | 2018-11-30 |
Family
ID=64368493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820668520.3U Active CN208171747U (en) | 2018-05-07 | 2018-05-07 | A kind of restraint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208171747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112236664A (en) * | 2019-05-08 | 2021-01-15 | 中国矿业大学(北京) | Transparent restraint device for normal deformation of plane model |
| CN113029824A (en) * | 2021-03-10 | 2021-06-25 | 中国矿业大学(北京) | Method for fixing sample by using electromagnet on Hopkinson pull rod |
-
2018
- 2018-05-07 CN CN201820668520.3U patent/CN208171747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112236664A (en) * | 2019-05-08 | 2021-01-15 | 中国矿业大学(北京) | Transparent restraint device for normal deformation of plane model |
| CN112236664B (en) * | 2019-05-08 | 2023-09-15 | 中国矿业大学(北京) | Transparent restraint device for normal deformation of plane model |
| CN113029824A (en) * | 2021-03-10 | 2021-06-25 | 中国矿业大学(北京) | Method for fixing sample by using electromagnet on Hopkinson pull rod |
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