CN208833585U - A kind of centering tooling for Charpy-type test - Google Patents
A kind of centering tooling for Charpy-type test Download PDFInfo
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- CN208833585U CN208833585U CN201821407884.2U CN201821407884U CN208833585U CN 208833585 U CN208833585 U CN 208833585U CN 201821407884 U CN201821407884 U CN 201821407884U CN 208833585 U CN208833585 U CN 208833585U
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- support arm
- locating piece
- charpy
- type test
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Abstract
The utility model provides a kind of centering tooling for Charpy-type test, it includes linking arm and the locating piece for being arranged between the testing machine support of sample two sides, the locating piece is fixedly connected on the first end of the linking arm, the second end of the linking arm is equipped with the handle for holding, the side of the locating piece is equipped with the protrusion of the notch for corresponding on sample, to realize to sample against positioning.It thereby, it is possible to quickly fast, accurately position the sample in Charpy-type test, avoids colliding to sample and it being caused to be displaced, prevents sample detection impact data value distortion.
Description
Technical field
The utility model relates to a kind of centering toolings for Charpy-type test.
Background technique
Charpy-type test (Charpy impact test) is to measure the anti-notch sensitivity of metal material (toughness)
Test.It is prepared with the test button of certain shapes and size, U-shaped breach or V-notch are made it have, in Charpy-type test
It is in simply supported beam state on machine, one-shot is made with the pendulum that testing machine lifts, thrusts sample along notch, with pendulum when fractureing
Again lifting heights difference calculates the absorption function of sample, as Aku and Akv.It can make impact test at different temperatures, absorb work value
(joule) greatly, indicates that toughness of material is good, in structure notch or other stress concentration it is insensitive.To important feature
Material, which is intended to use in recent years, can more reflect that the V-notch sample of notch effect does impact test.
Determined at the support position for carrying out that sample holder is placed on testing machine using clamp when Charpy-type test
Position, but usually clamp, when unclamping sample, the end of clamp can do arc track movement around the central spindle of clamp, press from both sides as a result,
The positive stop lug boss that the end of pincers matches with sample break can with sample break inner wall collide so that sample is walked, make notch center with
Positional shift (active force when offset is unclamped to clamp is directly proportional) occurs for pendulum center, and the impact test of sample is caused to detect
There is deviation in value.If there is biggish notch off(-)center situation, then needs to carry out centering work again, cause sample arranging
Overlong time, cause test process time may be more than the 5 second time as defined in GB/T 229, thus sample temperature generation compared with
Big variation further influences the actual value of impulse detection result.
Utility model content
Based on above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of for Charpy-type test
Centering tooling quickly can fast, accurately position the sample in Charpy-type test, avoid colliding to sample
And it is caused to be displaced, prevent sample detection impact data value distortion.
Based on this, a kind of the technical solution of the utility model are as follows: centering tooling for Charpy-type test comprising even
The locating piece between arm and testing machine support for sample two sides to be arranged in is connect, the locating piece is fixedly connected on the connection
The first end of arm, the second end of the linking arm are equipped with the handle for holding, and the side of the locating piece is equipped with
Protrusion for the notch corresponded on sample, to realize to sample against positioning.
Optionally, the protrusion is located at the midpoint of the side wall of the locating piece.
Optionally, the protrusion is arranged in a vertical direction, and the thickness phase one of the length of the protrusion and the locating piece
It causes.
Optionally, the locating piece is trapezoid block, and the protrusion is located on the lesser end face of length of the trapezoid block.
Optionally, the protrusion is triangular prism shape.
Optionally, the linking arm includes first support arm and second support arm, and the first end of the first support arm is vertically solid
Surely it is connected to the top of the locating piece, the second end of the first support arm is connected with the end of the second support arm.
Optionally, the second end of the first support arm and the end vertical of the second support arm are connected to a fixed, and institute
The junction of first support arm and the second support arm is stated using arc-shaped smooth transition.
Optionally, the first support arm and the second support arm are connecting rod, and the diameter of the first support arm and institute
The diameter for stating second support arm is consistent.
Optionally, the first support arm and the second support arm are integrated machine-shaping.
Implement the utility model embodiment, has the following beneficial effects:
The centering tooling for Charpy-type test of the utility model includes linking arm and is used to be arranged in sample two sides
Testing machine support between locating piece, the locating piece is fixedly connected on the first end of the linking arm, the linking arm
The second end the handle for holding is installed, and the side of the locating piece is equipped with for corresponding to lacking on sample
The protrusion of mouth, to realize to sample against positioning.As a result, when carrying out Charpy-type test using the centralising device, to examination
Its notch and the protrusion on locating piece are effectively positioned when sample is put, it can either be in experimentation to sample
Quick positioning, and can be improved sample positioning accuracy, the positioning between protrusion and sample break, which engages, can prevent from trying
The offset of position occurs for the center of sample and the pendulum center during test, and the impact test detected value for avoiding result in sample occurs
Deviation.And it is very simple in such a way that the tooling positions sample, efficiency is higher, can guarantee detect actual value can
By property.In addition, used clamping piece is tweezer when sample is placed on testing machine support when being worked using the tooling
Son, it is easy to use, and after sample is placed, tweezers are straight line away from sample when leaving sample, sample will not be caused to collide,
The shifting phenomena that sample occurs after being collided effectively is avoided, sample detection impact value distortion is prevented, guarantees entire test
The reliability of process.The structure of centralising device is very simple, produces and easily manufactured, cost is relatively low, and use process very may be used
By effective, it is adapted for promoting the use of.
Detailed description of the invention
Fig. 1 is the axis geodesic structure schematic diagram of centering tooling described in the embodiments of the present invention；
Fig. 2 is the overlooking structure diagram of centering tooling described in the embodiments of the present invention；
Fig. 3 is the structural schematic diagram of centering tooling described in the embodiments of the present invention in the operating condition.
Description of symbols:
1, linking arm, 11, first support arm, 12, second support arm, 2, locating piece, 21, protrusion, 3, sample, 4, testing machine branch
Seat, 5, tweezers, 6, handle.
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 creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that the orientation of the instructions such as term " on ", "lower", "left", "right"
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
Referring to Fig. 1 to Fig. 3, the centering tooling of Charpy-type test is used for described in the preferred embodiment of the utility model,
The locating piece 2 between testing machine support 4 including linking arm 1 and for 3 two sides of sample to be arranged in, the locating piece 2 is fixed to be connected
It is connected to the first end of the linking arm 1, the second end of the linking arm 1 is equipped with the handle 6 for holding, and described fixed
The side of position block 2 is equipped with the protrusion 21 of the notch for corresponding on sample 3, to realize to sample 3 against positioning.
Based on the above structure, carry out to the centering tooling in use, sample 3 is first placed in two testing machine supports 4
On, and two testing machine supports 4 are located at the end positions of sample 3, at this point, staff's hand holds the of linking arm 1
Handle 6 on two ends protrudes into the locating piece 2 of centralising device from the one end in the gap among two testing machine supports 4, by
It is gradually drawn close to sample 3, using corresponding auxiliary member active force in the outside of sample 3, while moving centering tooling, so that examination
Sample 3 is bonded with the locating piece 2 of centering tooling, and notch corresponding on sample 3 be engaged with the protrusion 21 on locating piece 2 and is determined
Position, realizes the accurate positionin to sample 3 on testing machine support 4 with this, handle 6 is the second end for being set in linking arm 1
On, the friction between the hand of staff and linking arm can be increased, facilitate and driven；After completing to the positioning of sample 3,
Centering tooling then leaves sample 3 again according to path when being put into.Staff is placed sample 3 using simple grip device
On the support of testing machine, then fixture leaves sample 3, then is compressed to by sample 3 to locating piece 2 by auxiliary member, whole
During a, the contact area of simple fixture and sample 3 is smaller, and the collision influence generated when leaving sample 3 on it is smaller, and
Fixture also needs to be compressed sample 3 and locating piece 2 with auxiliary member after leaving, to improve the reliability of the positioning of sample 3.This
Outside, centering tooling and auxiliary member are to be deviated from along straight line when leaving sample 3, will not cause to touch to sample 3 during being somebody's turn to do
It hits and generates displacement, avoid result in sample 3 and detect impact value data distortion.It should be noted that being carried out to the centralising device
During, the fixture clamped to sample 3 can be same object, i.e. sample 3 is being placed on testing machine by fixture
After on support 4, the fixture taken away be used as again auxiliary member to sample 3 carry out against compression, after withdrawing centralising device, then along with
The opposite direction of the route of centralising device withdraw to fixture that whole process is very simple, and effect is reliable.Centralising device and folder
Cooperation between tool enables to positioning of the sample 3 on testing machine support 4 quicker, prevents the adjustment to sample 3
Time course and cause the temperature of sample 3 to have greatly changed, avoid to detection actual value have an impact.
Wherein, protrusion 21 is located at the midpoint of the side wall of locating piece 2, can facilitate with sample 3 in testing machine support 4
On position corresponded to, guarantee sample 3 center can with carry out impact test when the center of pendulum it is corresponding, with guarantee
The accuracy of test.The shape that the shape of protrusion 21 designs then with notch on sample 3 is mutually adapted, in the present embodiment, protrusion 21
Shape be designed as triangular prism shape；Protrusion 21 is arranged in a vertical direction on the side of locating piece 2, and the length of protrusion 21 and institute
The thickness for stating locating piece 2 is consistent, so as to be bigger with the notch contact area of protrusion 21 and sample 3 on locating piece 2,
Further ensure that the accuracy that sample 3 positions, in the present embodiment, the thickness phase one of thickness and sample 3 that locating piece 2 designs
It causes, can be positioned guaranteeing sample 3 while saving the use of material, effectively reduce cost, but in other embodiments, position
The thickness design of block 2 is not limited by the present embodiment, needs to guarantee that the thickness of locating piece 2 is greater than or equal to the thickness of sample 3
?.Locating piece 2 is trapezoid block, and protrusion 21 is located on the lesser end face of length of the trapezoid block, the structure design of locating piece 2
Gap shape between two testing machine supports 4 matches, and the gap between two in the present embodiment testing machine support 4 is
Wedge-shaped opening design, cooperates so locating piece 2 is designed as trapezoid block with the wedge-shaped opening, to guarantee the two of trapezoidal locating piece 2
Side can be bonded completely with the side for the testing machine locating piece 2 for being located at two sides, consequently facilitating the movement in 2 gap of locating piece,
And it can effectively ensure that reliability to 2 position restriction of locating piece.
In addition, linking arm 1 includes first support arm 11 and second support arm 12, the first end of first support arm 11 is vertically fixed to be connected
It is connected to the top of locating piece 2, the second end of first support arm 11 is connected with the end of second support arm 12, and first support arm 11 is vertical
It is connected to the top of locating piece 2, the convenient top for exceeding testing machine support 4, so as to carry out at the top of testing machine support 4
The connection of the movement of locating piece 2, second support arm 12 and first support arm 11 can facilitate staff to control by second support arm 12
First support arm 11, the effective force direction for changing staff, facilitates and is operated, provide convenience for real work.First
The second end of support arm 11 and the end vertical of second support arm 12 are connected to a fixed, and the company of first support arm 11 and second support arm 12
It meets place and uses arc-shaped smooth transition, can either guarantee the aesthetics of the appearance of entire linking arm 1, it is effective to reduce linking arm 1
On angular structures, prevent from occurring to scratch in the course of work etc., the second support arm 12 that connects and fixed be vertically connected with first support arm 11
Position block 2 is parallel to each other, thus control locating piece 2 in the straight direction close to or far from sample 3, prevent to sample 3 into
The phenomenon that row collision causes it to be displaced.
Further, first support arm 11 and second support arm 12 are connecting rod, and the diameter of first support arm 11 and described the
The diameter of two support arms 12 is consistent, and first support arm 11 and second support arm 12 are also possible to connecting rod or other kinds of connection
Part, the processing that can conveniently in process of production identical as the specification of second support arm 12 of first support arm 11, improves production efficiency.Hand
Handle 6 is to be set on the free end of second support arm 12, and the internal diameter of handle is consistent with the 12 of second support arm outer wall, guarantees to connect
The reliability connect.First support arm 11 and second support arm 12 are integrated machine-shaping, and structure is simple, and convenient for production, cost is relatively low, and
It is able to carry out popularization and use.
The utility model provides a kind of working method based on the above-mentioned centering tooling for Charpy-type test, including
Following steps:
(S1) two testing machine supports 4 are placed, testing machine support 4 includes trapezoidal body portion and column in the present embodiment
Body portion, and the height of cylindrical body portion is lower than the height of trapezoidal body portion, the biggish end face of trapezoidal body portion and column
Side be connected, for placing sample 3 on column；
(S2) clamping of sample 3 is placed on the column of testing machine support 4 using tweezers 5, is located at and is connected with prismatoid
At the position connect, the side wall at 3 both ends of sample fits with the side for being higher by cylindrical body portion on trapezoidal body portion respectively；
(S3) it draws linking arm 1 by handle 6 locating piece 2 of centralising device is placed between two testing machine supports 4
Gap in, and gradually compressed from the side of the trapezoidal body portion of testing machine support 4 to the direction of sample 3, at this time by tweezer
Son 5 produces the outside of sample 3, compresses to sample 3, so that the locating piece 2 of sample 3 and centralising device mutually compresses patch
It closes；
(S4) during sample 3 and locating piece 2 carry out compression fit, on the protrusion 21 and sample 3 on locating piece 2
Notch corresponds to each other occlusion；
(S5) under the premise of guaranteeing that tweezers 5 persistently compress sample 3, locating piece 2 is driven to remove along original route by linking arm 1
From centralising device being withdrawn from completely between two testing machine supports 4；
(S6) again towards tweezers 5 are withdrawn with the contrary direction that locating piece 2 leaves, to complete the centering work of sample 3；
(S7) pendulum impact test in later period is carried out, so that sample 3 fractures along indentation, there, record absorbs function.
The centering tooling for Charpy-type test of the utility model includes linking arm 1 and is used to be arranged at 3 liang of sample
Locating piece 2 between the testing machine support 4 of side, the locating piece 2 is fixedly connected on the first end of the linking arm 1, described
The second end of linking arm 1 is equipped with the handle 6 for holding, and the side of the locating piece 2 is equipped with for corresponding to
The protrusion 21 of notch on sample 3, to realize to sample 3 against positioning.Charpy punching is being carried out using the centralising device as a result,
When hitting test, its notch and the protrusion 21 on locating piece 2 are effectively positioned when being put to sample 3, it can
Quick positioning in enough experimentations to sample 3, and can be improved the accuracy of the positioning of sample 3, protrusion 21 and 3 notch of sample it
Between positioning engaging can prevent the center of sample 3 and pendulum center during test from the offset of position occurs, avoid result in
There is deviation in the impact test detected value of sample 3.And very simple in such a way that the tooling positions sample 3, efficiency
It is higher, it can guarantee the reliability for detecting actual value.In addition, sample 3 is placed on test when being worked using the tooling
Used clamping piece is tweezers 5 when on machine support 4, easy to use, and after sample 3 is placed, when tweezers 5 leave sample 3
Deviate from sample 3 for straight line, sample 3 will not be caused to collide, the displacement for effectively avoiding sample 3 from occurring after being collided is existing
As preventing sample 3 from detecting impact value distortion, guaranteeing the reliability of entire test process.The structure of centralising device is very simple, raw
It produces and easily manufactured, cost is relatively low, and use process is very reliable effective, is adapted for promoting the use of.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these
Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this
In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with
Referred to as " first " information.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvement and deformations can also be made, these improve and become
Shape is also considered as the protection scope of the utility model.
Claims (9)
1. a kind of centering tooling for Charpy-type test, which is characterized in that including linking arm and for being arranged in sample two
Locating piece between the testing machine support of side, the locating piece are fixedly connected on the first end of the linking arm, the connection
The second end of arm is equipped with the handle for holding, and the side of the locating piece is equipped with for corresponding to lacking on sample
The protrusion of mouth, to realize to sample against positioning.
2. the centering tooling according to claim 1 for Charpy-type test, which is characterized in that the protrusion is located at institute
At the midpoint for stating the side wall of locating piece.
3. the centering tooling according to claim 2 for Charpy-type test, which is characterized in that the protrusion is along vertical
Direction arrangement, and the length of the protrusion is consistent with the thickness of the locating piece.
4. the centering tooling according to any one of claims 1 to 3 for Charpy-type test, which is characterized in that described
Locating piece is trapezoid block, and the protrusion is located on the lesser end face of length of the trapezoid block.
5. the centering tooling according to claim 4 for Charpy-type test, which is characterized in that the protrusion is trigone
Column.
6. the centering tooling according to any one of claims 1 to 3 for Charpy-type test, which is characterized in that described
Linking arm includes first support arm and second support arm, and the first end of the first support arm is vertically fixedly connected on the locating piece
Top, the second end of the first support arm are connected with the end of the second support arm.
7. the centering tooling according to claim 6 for Charpy-type test, which is characterized in that the first support arm
The second end and the end vertical of the second support arm are connected to a fixed, and the connection of the first support arm and the second support arm
Place uses arc-shaped smooth transition.
8. the centering tooling according to claim 7 for Charpy-type test, which is characterized in that the first support arm with
The second support arm is connecting rod, and the diameter of the first support arm is consistent with the diameter of the second support arm.
9. the centering tooling according to claim 8 for Charpy-type test, which is characterized in that the first support arm and
The second support arm is integrated machine-shaping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407884.2U CN208833585U (en) | 2018-08-29 | 2018-08-29 | A kind of centering tooling for Charpy-type test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407884.2U CN208833585U (en) | 2018-08-29 | 2018-08-29 | A kind of centering tooling for Charpy-type test |
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| CN208833585U true CN208833585U (en) | 2019-05-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816345A (en) * | 2021-02-09 | 2021-05-18 | 协强仪器制造(上海)有限公司 | Enhanced plastic carbon fiber V-shaped shearing test tool |
| US11046258B2 (en) | 2019-08-20 | 2021-06-29 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods of visually checking for alignment between instrument panel ornaments and door ornaments using alignment tools |
-
2018
- 2018-08-29 CN CN201821407884.2U patent/CN208833585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11046258B2 (en) | 2019-08-20 | 2021-06-29 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods of visually checking for alignment between instrument panel ornaments and door ornaments using alignment tools |
| CN112816345A (en) * | 2021-02-09 | 2021-05-18 | 协强仪器制造(上海)有限公司 | Enhanced plastic carbon fiber V-shaped shearing test tool |
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