CN206683943U - A kind of bending pipes performance measurement special fixture - Google Patents
A kind of bending pipes performance measurement special fixture Download PDFInfo
- Publication number
- CN206683943U CN206683943U CN201720259609.XU CN201720259609U CN206683943U CN 206683943 U CN206683943 U CN 206683943U CN 201720259609 U CN201720259609 U CN 201720259609U CN 206683943 U CN206683943 U CN 206683943U
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- CN
- China
- Prior art keywords
- sample
- deck
- special fixture
- pressure head
- performance measurement
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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.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
It the utility model is related to measure special fixture technical field, especially a kind of bending pipes performance measurement special fixture, including deck and pressure head, sample point is provided with the middle part of the lower end of the deck, the upper end both sides of the deck are equipped with fixed block, the side of the sliding shoe opposite face is equipped with screw mandrel and nut, and the nut is located at the outside of screw mandrel, and the lower end of the pressure head contacts through jack with sample point.Set screw is held out against to ensure the reliable location of sample in the horizontal direction by being set up on support fixture, so as to which sample is difficult to twisting for non-vertical direction occurs in the pressure by vertical direction, and rational adjustment is carried out to the radius of curvature of pressure head, ensure accurate 3 stress of sample, it is ensured that the accuracy of test data.To solve the problems, such as that the existing such fixture used is too high to the precision of specimen size and fixation to sample position is not accurate, unreliable cause test data inaccuracy.
Description
Technical field
It the utility model is related to measure special fixture technical field, more particularly to a kind of bending pipes performance measurement exclusive clamps
Tool.
Background technology
When examining the bendability ability of tubing, the method for generally use " press-bending " experiment, i.e.,：Tubing batten is freely put
It is placed on the support fixture with certain span, support fixture both ends are arc, have fixed radius of curvature, sample and branch
The contact point for supportting fixture is the peak of arcwall face (this is stress point).Top connects a pressure head, and the top of pressure head is also arc
Face form, ensure that sample stress is bikini.But conventional fixture requires very high to the size of sample, required precision reaches
0.2mm, if the thickness of sample, width, length test requirements document slightly mismatch, sample is may result in by vertical direction
The twisting and deformation on non-vertical direction occur during pressure, so as to cause the deviation of test data.In fact, plastics batten is special
That the sample uniformity of thermoplastic does not all reach such strict requirements in many cases, then the deviation of result or it is big or
It is small to be constantly present.
Utility model content
The purpose of this utility model is to solve shortcoming present in prior art, size of the conventional fixture to sample
It is required that very high, required precision reaches 0.2mm, if the thickness of sample, width, length test requirements document slightly mismatch, will lead
Twisting and deformation on non-vertical direction occur in the pressure by vertical direction for test sample, so as to cause the inclined of test data
Difference.In fact, the sample uniformity of plastics batten particularly thermoplastic does not all reach so strict want in many cases
Ask, then the deviation of result is either large or small to be constantly present.A kind of and bending pipes performance measurement special fixture proposed.
To achieve these goals, the utility model employs following technical scheme：
A kind of bending pipes performance measurement special fixture, including deck and pressure head are designed, is set in the middle part of the lower end of the deck
There is sample point, the upper end both sides of the deck are equipped with fixed block, sliding shoe, the sliding shoe are plugged with the fixed block
The side of opposite face is equipped with screw mandrel and nut, and the nut is located at the outside of screw mandrel, and the upper ends of two screw mandrels have
Exemplar, jack is reserved with the middle part of the deck, the lower end of the pressure head contacts through jack with sample point.
Preferably, two sides of the sliding shoe away from screw mandrel are equipped with pin-and-hole, and the diameter of the pin-and-hole is at least
/ 3rd of sliding shoe diameter.
Preferably, the middle part of the fixed block offers top wire hole.
The utility model proposes a kind of bending pipes performance measurement special fixture, beneficial effect is：The utility model
It is the improvement carried out to existing bend test with specimen holder, set screw is held out against to ensure to try by being set up on support fixture
The reliable location of sample in the horizontal direction, so as to which sample is difficult to turning round for non-vertical direction occurs in the pressure by vertical direction
It is dynamic, and rational adjustment has been carried out to the radius of curvature of pressure head, ensure accurate 3 stress of sample, it is ensured that test data
Accuracy.To solve, the existing such fixture used is too high to the precision of specimen size and fixation to sample position is not smart
Accurate, unreliable the problem of causing test data inaccuracy.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of bending pipes performance measurement special fixture part-structure schematic diagram；
Fig. 2 be the utility model proposes a kind of bending pipes performance measurement special fixture structural representation.
In figure：Deck 1, sliding shoe 2, screw mandrel 3, nut 4, exemplar 5, pressure head 6, pin-and-hole 7, top wire hole 8, fixed block 9.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1-2, a kind of bending pipes performance measurement special fixture, including deck 1 and pressure head 6, in the lower end of deck 1
Portion is provided with sample point, and the upper end both sides of deck 1 are equipped with fixed block 9, and the middle part of fixed block 9 offers top wire hole 8, in order that
Top wire hole 8 limits the direction of motion and the position of screw mandrel 3, in order to practical more convenient and accurate, after being advantageous to this practicality
Popularization.
Sliding shoe 2 is plugged with fixed block 9, the side of the opposite face of sliding shoe 2 is equipped with screw mandrel 3 and nut 4, nut 4
Positioned at the outside of screw mandrel 3, two sides of the sliding shoe 2 away from screw mandrel 3 are equipped with pin-and-hole 7, and the diameter of pin-and-hole 7 at least slides
/ 3rd of the diameter of block 2, and can does not lose sliding shoe 2 active force of itself while being easily installed other connectors, when avoiding
Between cause pin-and-hole 7 excessive long, the effect dynamics of sliding shoe 2 is diminished, cause the waste of material.
The upper ends of two screw mandrels 3 have exemplar 5, and the middle part of deck 1 is reserved with jack, and the lower end of pressure head 6 passes through jack
Contacted with sample point.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (3)
1. a kind of bending pipes performance measurement special fixture, including deck (1) and pressure head (6), the lower end middle part of the deck (1)
Provided with sample point, it is characterised in that the upper end both sides of the deck (1) are equipped with fixed block (9), in the fixed block (9)
Sliding shoe (2) is plugged with, the side of sliding shoe (2) opposite face is equipped with screw mandrel (3) and nut (4), nut (4) position
In the outside of screw mandrel (3), the upper ends of two screw mandrels (3) have exemplar (5), are reserved with the middle part of the deck (1) slotting
Hole, the lower end of the pressure head (6) contact through jack with sample point.
A kind of 2. bending pipes performance measurement special fixture according to claim 1, it is characterised in that two slips
Side of the block (2) away from screw mandrel (3) is equipped with pin-and-hole (7), and the diameter of the pin-and-hole (7) is at least sliding shoe (2) diameter
1/3rd.
A kind of 3. bending pipes performance measurement special fixture according to claim 1, it is characterised in that the fixed block
(9) middle part offers top wire hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259609.XU CN206683943U (en) | 2017-03-17 | 2017-03-17 | A kind of bending pipes performance measurement special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259609.XU CN206683943U (en) | 2017-03-17 | 2017-03-17 | A kind of bending pipes performance measurement special fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206683943U true CN206683943U (en) | 2017-11-28 |
Family
ID=60393235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720259609.XU Expired - Fee Related CN206683943U (en) | 2017-03-17 | 2017-03-17 | A kind of bending pipes performance measurement special fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206683943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920014A (en) * | 2019-10-08 | 2020-03-27 | 江西省得一康管业有限公司 | Preparation method and detection equipment of MPVE corrugated pipe with point contact high-resistance characteristic |
-
2017
- 2017-03-17 CN CN201720259609.XU patent/CN206683943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920014A (en) * | 2019-10-08 | 2020-03-27 | 江西省得一康管业有限公司 | Preparation method and detection equipment of MPVE corrugated pipe with point contact high-resistance characteristic |
| CN110920014B (en) * | 2019-10-08 | 2022-03-15 | 江西省得一康管业有限公司 | Preparation method and detection equipment of MPVE corrugated pipe with point contact high-resistance characteristic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20190317 |