CN209640097U - A kind of sample clamping mechanism of molding sand high temperature test - Google Patents
A kind of sample clamping mechanism of molding sand high temperature test Download PDFInfo
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- CN209640097U CN209640097U CN201920303306.2U CN201920303306U CN209640097U CN 209640097 U CN209640097 U CN 209640097U CN 201920303306 U CN201920303306 U CN 201920303306U CN 209640097 U CN209640097 U CN 209640097U
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- sample
- butt junction
- high temperature
- molding sand
- support bar
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Abstract
The utility model discloses a kind of sample clamping mechanisms of molding sand high temperature test, including sample support bar, driving mechanism and sample holder frame, wherein: two sample holder framves are arranged along straight line L relative spacing, sample holder frame includes lower limb and upper limb, lower limb are used to support upper limb, gap is formed between two upper limbs, two upper limbs respectively form first butt junction close to the lower end surface of the side in gap, and the lower end of the first butt junction is formed and straight line L horizontal quadrature, pointed abutment end；Two sample support bars are vertically disposed at the lower section of two upper limbs respectively, and the upper end of sample support bar forms branch fastener, and the top of branch fastener forms the support end with straight line L horizontal quadrature；Driving mechanism drive two sample support bars along the vertical direction on move synchronously.The output end of driving mechanism is caused to damage when the utility model has the beneficial effects that making sample be not susceptible to turn on one's side, being also prevented from sample deformation.
Description
Technical field
The utility model relates to a kind of moulding-sand property testing agencies, and in particular, to a kind of sample of molding sand high temperature test
Clamping device
Background technique
According to the difference of experimental temperature, moulding-sand property can be divided into room temperature performance (room temperature), hot property (30~400 DEG C), height
Performance under warm nature energy (800~1600 DEG C) and pouring condition, molding sand high-temperature behavior refer to performance in the case of a high temperature, main
There are compression strength, retained strength, thermal expansion, thermal deformation, shock loading expansion etc..
The sample clamping mechanism of existing molding sand high temperature test is supported only with bottom is fixed, in the type for carrying out different materials
When sand sample testing is needed by heat, be easy to toast entire sample, keep sample too fast in powdery, and sample by
It cannot be preferably kept fixed after thermal deformation.
Meanwhile existing fixing end and sample form face contact, after sample is thermally deformed, contact of the fixing end with sample
Area changes immediately, causes sample that cannot fix.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of sample clamping mechanism of molding sand high temperature test.
A kind of sample clamping mechanism of molding sand high temperature test, including sample support bar, driving mechanism and sample holder frame,
In:
Two sample holder framves are arranged along straight line L relative spacing, and the sample holder frame includes lower limb and upper limb, institute
It states lower limb and is used to support the upper limb, form gap between the upper limb of two sample holder framves, two upper limbs are close
The lower end surface of the side in the gap respectively forms first butt junction, and the lower end of first butt junction is formed and the straight line
L horizontal quadrature, pointed abutment end；
Two sample support bars are vertically disposed at the lower section of two upper limbs respectively, and it is corresponding described
The projection of upper limb is located at the side of first butt junction far from the gap, and the upper end of the sample support bar forms support
Head, the top of the branch fastener form the support end with the straight line L horizontal quadrature；
The driving mechanism drive two sample support bars along the vertical direction on move synchronously.
The beneficial effects of the utility model are:
1, the surface of sample support bar and sample is arranged in sample holder frame, prevents sample support bar and sample between non-
Gap region is directly heated and deforms；
2, the line that sample holder frame and sample support bar can be formed sample in the width direction contacts, and driving mechanism makes to try
Sample provides the support of vertical direction always during heat resolve, to be less susceptible to turn on one's side compared to face contact；
3, the branch of totally four positions before, during and after sample holder frame and sample support bar provide along its length sample
Support further keeps sample to stablize.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sample clamping mechanism of molding sand high temperature test；
Fig. 2 is schematic diagram when branch fastener is abutted with sample；
Fig. 3 is schematic diagram when elastic component is connect with support rod and cylinder output；
Fig. 4 is schematic diagram when butt junction is abutted with sample.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained belongs to the range of the utility model protection.
Referring to Fig. 1, the sample clamping mechanism of molding sand high temperature test is connect with equipment control case 100A, in high temperature test
When support sand test specimen.
The sample clamping mechanism 100 of molding sand high temperature test includes sample support bar 1, driving mechanism 2 and sample holder frame 3.
Two sample holder framves 3 are arranged along straight line L relative spacing, and sample holder frame 3 includes lower limb 30 and upper limb 31, lower limb
30 are used to support upper limb 31, and gap 300 is formed between two upper limbs 31 of a pair of of sample holder frame 3, which is that heat supply edge adds
The section of heat, two upper limbs 31 respectively form first butt junction 32, the first butt junction close to the lower end surface of the side in gap 300
32 lower end is formed and straight line L horizontal quadrature, pointed abutment end 32M.
When molding sand is tested, the middle part of sample is connected to 32 lower section of the first butt junction of two upper limbs 31, while sample respectively
Thermal region to be added is placed in gap 300, for heating edge heating, due to the first butt junction 32 form with straight line L horizontal quadrature, be in
Pointed abutment end 32M, therefore, regardless of sample deforms after the heating, sample will receive the conflict power of rectilinear direction always.
Preferably, lower limb 30 and upper limb 31 at right angles arrange that is, lower limb 30 are vertically arranged, and upper limb 31 is horizontally disposed.
Such as Fig. 4, there are two second side 32S, two second side 32S to be crossed to form line in bottom for the first butt junction 32 tool
The extending direction and straight line L1 horizontal quadrature, the i.e. width direction of abutment end 32M and sample of the abutment end 32M of shape, abutment end 32M
In parallel.
There are two sample support bar 1 is total, and it is vertically disposed at the lower section of the upper limb 31 of two sample holder framves 3 respectively,
And it is located at the first side of the butt junction 32 far from gap 300 in the projection of upper limb 31, the lower section of sample support bar 1 connects driving
Mechanism 2 is with stretching motion in the vertical direction.
Sample support bar 1 is located at the lower section of the upper limb 31 of sample holder frame 3, to protect sample support bar 1 not by heat
Source directly heats；Sample support bar 1 is corresponding in the outside of the first butt junction 32 simultaneously, i.e., when sample support bar 1 is lifted upwards
When sample, sample support bar 1 acts on the both ends lower surface of the length direction of sample, and sample holder frame 3 acts in sample
Portion upper surface.To realize the clamping everywhere to sample, while making sample support bar 1 between its first adjacent butt junction 32
Sample from being directly heated by heat source.
That is, setting one below the upper limb of the sample holder frame on the left of Fig. 1, the top of sample support bar 1 forms support
First 11, branch fastener 11 forms the support end 11M with straight line L horizontal quadrature, when sample is placed on sample support bar 1, support
Hold 11M that can form what line in the width direction contacted to sample.
Such as Fig. 2, there are two first side 11S for the tool of branch fastener 11, and two first side 11S form linear in roof intersection
The extending direction and straight line L horizontal quadrature of support end 11M, support end 11M, i.e., it is parallel with the width direction of sample when putting.
Preferably, the width of sample can be prepared into the length less than support end 11M, so that support end 11M be made to prop up completely
Support sample.
It should be noted that the width of sample is also greater than the length of support end 11.
In another preferred embodiment, the upper limb 31 of at least one sample holder frame 3 is leaned in its first butt junction 32
The side of its nearly lower limb 30 is additionally provided with the second butt junction 33, and projection of the branch fastener 11 on upper limb 31 is located at the first butt junction 32
And second between butt junction 33.
It should be noted that the sample holder frame 3 that can be left side is equipped with the second butt junction 33, it is also possible to right side
Sample holder frame 3 is equipped in the second butt junction 33, or the two sample holder framves 3 in left and right and is equipped with the second butt junction 33.
The construction of second butt junction 33 is identical as the construction of the first butt junction 32, and this will not be repeated here.
When needing to detect the end of sample, the other end of sample is fixed on to first butt junction 32 and second of the same side
The lower section of butt junction 33, branch fastener 11 top, branch fastener 11, the first butt junction 32, the second butt junction 33 form four to sample
Place's support.
I.e. if when detecting the left end of sample, the right end of sample is fixed on to first fastener 11, first, second on right side
Between butt junction 32/33, while it is located at the left end of sample in heating gap 300.
Driving mechanism 2 shares two groups, and is separately connected two groups of sample support bars 1 and drives two sample support bars 1 along perpendicular
Histogram is to moving synchronously.
It should be noted that driving mechanism 2 can also only be arranged one group, to drive two sample support bars 1 along vertical simultaneously
Direction movement.
Driving mechanism 2 includes cylinder 21 and elastic component 22, and the upper of equipment control case 100A is arranged in the fixing end of cylinder 21
End face, the output end of cylinder 21 connects the lower end of sample support bar 1 by elastic component 22, to drive support rod to transport along the vertical direction
It is dynamic.
It should be noted that the power output of cylinder 21 be by which is connected PLC control circuit and pressure regulator valve controlled.
At this point, effect of the power of the output of cylinder 21 by elastic component 22, the thrust for receiving sample support bar 1 linearly become
Change, as elastic component 22 compresses, the thrust that sample support bar 1 receives is changed from small to big, and the power output of eventually equal to cylinder 21.Increase
Elastic component 22 is added to be suitable for finely tuning sample support bar 1 to the thrust of sample.
In another preferred embodiment, driving mechanism 2 only includes cylinder 21, and the output end of cylinder 21 is directly connected to try
The lower end of sample support rod 1, the power and thrust of the sample support bar 1 to sample that cylinder 21 exports at this time are always consistent.
Other than above two preferred embodiment, driving mechanism 2 further includes air cylinder support 20, and the setting of air cylinder support 20 exists
Inside equipment control case 100A, the fixing end of cylinder 21 is fixed on air cylinder support 20.
Air cylinder support 20 is vertically arranged and is in "U" shaped, and the threaded upper ends of air cylinder support 20 are connected to equipment control case 100
Inner face, the lower end of air cylinder support 20 forms the through-hole of fixed cylinder 21.
For cylinder 21 in being vertically arranged, the top of fixing end wears the through-hole of air cylinder support 20, and output end is upward and solid
Surely elastic component 22 is connected, elastic component 22 has the characteristic that can be compressed and can restore, and the upper end of elastic component 22 connects sample support
The lower end of bar 1.Alternatively, its output end is directly connected to the lower end of sample support bar 1
By this design, cylinder 21 is placed in the inside of equipment control case 100A, thus make cylinder 21 avoid by
High-temperature heating.
Such as Fig. 3, elastic component 22 has base portion 221, limiting section 222 and elastomer 223, and base portion 221 has socket cylinder 21
Output end the first slot 2210, limiting section 222 is formed in the one end of base portion 221 far from the first slot 2210, in limiting section 222
The heart is recessed inwardly to form the second slot 2220, and the slot bottom of the second slot 2220 is equipped with elastomer 223, and the lower end of sample support bar 1 abuts
Elastomer 223, while the side wall of the inner wall sandwiched sample support bar 1 of the second slot 2220.
Preferably, the first slot 2210 is thread groove, and the output end of cylinder 21 is threaded in the first slot 2210.
Preferably, elastomer 223 is spring.
The lower end periphery of sample support bar 1 is limited in the second slot 2220, to make during moving upwards cylinder 21
Sample support bar 1 preferably keeps vertically moving.
The working principle of the sample clamping mechanism of molding sand test described in the utility model:
When the middle part performance of test sample, cylinder 21, which is shunk, drives two sample support bars 1 to move downward, and sample is placed
It on the support end 11M of two sample support bars 1, is supported with stablizing to sample, the power output that adjustment cylinder 21 stretches out upwards is driven
Dynamic sample support bar 1 moves upwards, and sample is made to abut the abutment end 32M of sample holder frame 3, while the middle position of sample upwards
In gap 300, the fixed operation of sample is completed, then openable heating edge heats the sample at gap 300.
When the end performance of test sample, controls single cylinder 21 and shrinks, move downward the sample support bar 1 of the side,
The end to be measured of sample is placed in gap 300, while is located at the other end of sample under the first, second butt junction of the side
Side, control cylinder 21 stretch out, and move upwards sample support bar 1, and finally realize sample support bar 1,32 and of the first butt junction
Sample is fixed in second butt junction 33 jointly.
The above-mentioned embodiments merely express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of sample clamping mechanism of molding sand high temperature test, which is characterized in that including sample support bar, driving mechanism and sample
Holding frame, in which:
Two sample holder framves are arranged along straight line L relative spacing, and the sample holder frame includes lower limb and upper limb, under described
Limb is used to support the upper limb, gap is formed between the upper limb of two sample holder framves, two upper limbs are close to described
The lower end surface of the side in gap respectively forms first butt junction, and the lower end of first butt junction is formed and the straight line L water
Straight and even friendship, pointed abutment end；
Two sample support bars are vertically disposed at the lower section of two upper limbs respectively, and it is in the corresponding upper limb
Projection be located at the side of first butt junction far from the gap, the upper end of the sample support bar forms branch fastener, institute
The top for stating branch fastener is formed and the support end of the straight line L horizontal quadrature；
The driving mechanism drive two sample support bars along the vertical direction on move synchronously.
2. the sample clamping mechanism of molding sand high temperature test according to claim 1, which is characterized in that at least one is described
Limb is additionally provided with the second butt junction close to the side of the lower limb of its connection in its first butt junction, and the branch fastener its just
The projection of the upper limb of top is between first butt junction and second butt junction.
3. the sample clamping mechanism of molding sand high temperature test according to claim 2, which is characterized in that first butt junction
There are two second side, two second sides to be crossed to form the abutment end in bottom for tool.
4. the sample clamping mechanism of molding sand high temperature test according to claim 3, which is characterized in that second butt junction
It is identical as the structure of first butt junction.
5. the sample clamping mechanism of molding sand high temperature test according to claim 4, which is characterized in that the branch fastener has
Two first sides, two first sides form the linear support end in roof intersection.
6. the sample clamping mechanism of molding sand high temperature test according to claim 5, which is characterized in that the driving mechanism packet
Cylinder is included, the output end of the cylinder connects the lower end of the sample support bar.
7. the sample clamping mechanism of molding sand high temperature test according to claim 6, which is characterized in that the driving mechanism is also
Including elastic component, the output end of the cylinder connects the lower end of the sample support bar by the elastic component.
8. the sample clamping mechanism of molding sand high temperature test according to claim 7, which is characterized in that the elastic component has
Base portion, limiting section and elastomer, the base portion have the first slot for being socketed the output end of the cylinder, the limiting section shape
At in the one end of the base portion far from first slot, the center of the limiting section is recessed inwardly to form the second slot, and described second
The slot bottom of slot is equipped with elastomer, and the lower end of the sample support bar abuts the elastomer, while the inner wall folder of second slot
If the side wall of the sample support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303306.2U CN209640097U (en) | 2019-03-11 | 2019-03-11 | A kind of sample clamping mechanism of molding sand high temperature test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303306.2U CN209640097U (en) | 2019-03-11 | 2019-03-11 | A kind of sample clamping mechanism of molding sand high temperature test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209640097U true CN209640097U (en) | 2019-11-15 |
Family
ID=68495691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920303306.2U Active CN209640097U (en) | 2019-03-11 | 2019-03-11 | A kind of sample clamping mechanism of molding sand high temperature test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209640097U (en) |
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2019
- 2019-03-11 CN CN201920303306.2U patent/CN209640097U/en active Active
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