CN206258314U - A kind of creep test fixture - Google Patents

A kind of creep test fixture Download PDF

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Publication number
CN206258314U
CN206258314U CN201621328747.0U CN201621328747U CN206258314U CN 206258314 U CN206258314 U CN 206258314U CN 201621328747 U CN201621328747 U CN 201621328747U CN 206258314 U CN206258314 U CN 206258314U
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CN
China
Prior art keywords
face
slot
creep test
connecting rod
head rod
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CN201621328747.0U
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Chinese (zh)
Inventor
韩二昌
张清冬
张高翔
龙安平
肖磊
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Co Ltd Of Damp Central-South Research Institute Of Shenzhen Ten Thousand
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Co Ltd Of Damp Central-South Research Institute Of Shenzhen Ten Thousand
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Abstract

The utility model discloses a kind of creep test fixture, for carrying out creep test, including head rod and the second connecting rod to micro metal workpiece;Wherein, head rod includes a first end face and the first side wall, and inwardly sets one first T-slot along first end face from the first side wall optional position;Second connecting rod includes a second end face and second sidewall, and inwardly sets one second T-slot along second end face from second sidewall optional position;First T-slot and the second T-slot include translot and vertical slot, and vertical slot is connected and vertical first end face and second end face respectively, and the first T-slot and the second T-slot cooperatively form an I-shaped groove.By the utility model, can clamp miniature workpiece carries out creep test, it is to avoid waste of material;Materials Fracture splashes at the end of preventing creep test;Convenient disassembly is quick;It is firm to piece-holder in experimentation, it is smoothed out beneficial to experiment.

Description

A kind of creep test fixture
Technical field
The utility model is related to testing of materials field, more particularly to a kind of creep test fixture.
Background technology
Aero-Space high-temperature material need to carry out military service performance dependence test and evaluate work due to being on active service in high temperature environments Make, including the high-temerature creep and enduring quality of test material.Testing sample is arranged on creep testing machine, with corresponding folder Tool is fixed.Axial tension is applied to sample by counterweight, high temperature furnace is heated to sample, there is provided hot environment, sample was being tested Elongation in journey is measured by grating scale.With the passage of test period, sample gradually extends, when certain limit is reached, examination Sample is broken, off-test.
The fixture of existing creep testing machine mainly has two kinds:One kind is screw thread chuck, the examination larger for clamping volume Sample;Another kind is the plate grip clamped through sample with pin, the corresponding sample size of plate grip and the sheet material It is closely sized to.Sample clamped by both fixtures cannot be clamped for size very tiny sampler.Small sample clamping Difficulty is big, even if being clamped reluctantly, clamp structure is unstable, easily comes off, and is installing the mistake of thermocouple and addition counterweight Cheng Zhong, sample is easily shaken and is dropped.The moment being pulled off in sample during off-test is also easily thrown out of.In addition, Tiny sample is due to size itself, it is difficult to be connected with grating scale, has lacked the record of grating scale, will in experimentation The elongation of sample cannot be measured.
Utility model content
The utility model can clamp miniature workpiece and enter mainly solving the technical problems that provide a kind of creep test fixture Row creep test, it is to avoid waste of material;Materials Fracture splashes at the end of preventing creep test;Convenient disassembly is quick;Experimentation In it is firm to piece-holder, be smoothed out beneficial to experiment.
In order to solve the above technical problems, the technical scheme that the utility model is used is:A kind of creep test folder is provided Tool, for carrying out creep test, including head rod and the second connecting rod to micro metal workpiece;Wherein, head rod Including a first end face and the first side wall, and one first T-slot is inwardly set from the first side wall optional position along first end face;The Two connecting rods include a second end face and second sidewall, and one second is inwardly set along second end face from second sidewall optional position T-slot;First T-slot and the second T-slot include translot and vertical slot, and vertical slot is connected and vertical first end face and the second end respectively Face, the first T-slot and the second T-slot cooperatively form an I-shaped groove.
Wherein, the first T-slot and the second T-slot are connected from the first side wall and second sidewall insertion head rod and second Bar, and vertical slot end is along the diameter setting of first end face and second end face.
Wherein, head rod and the second connecting rod are cylinder type, and head rod area of section more than the The area of section of two connecting rods.
Wherein, the first end face edge of head rod stretches out, and forms a mating cavity, the cavity cross-section face of mating cavity Be placed on the second connecting rod in mating cavity more than the area of section of the second connecting rod by product.
Wherein, at least one observation panel is set on mating cavity.
Wherein, observation panel is arranged on the wall of mating cavity side just to the position of I-shaped groove, is used to observe I-shaped groove.
Wherein, on the side wall of one end opposite with first end face and second end face in head rod and the second connecting rod It is threaded, to be connected to creep testing machine.
Prior art is different from, creep test fixture of the present utility model is used to carry out creep examination to micro metal workpiece Test, including head rod and the second connecting rod;Wherein, head rod includes a first end face and the first side wall, and from the Side wall optional position inwardly sets one first T-slot along first end face;Second connecting rod includes a second end face and the second side Wall, and one second T-slot is inwardly set from second sidewall optional position along second end face;First T-slot and the second T-slot are wrapped Translot and vertical slot are included, vertical slot is connected and vertical first end face and second end face respectively, and the first T-slot and the second T-slot coordinate shape Into an I-shaped groove.By the utility model, can clamp miniature workpiece carries out creep test, it is to avoid waste of material;Prevent creep Materials Fracture splashes during off-test;Convenient disassembly is quick;It is firm to piece-holder in experimentation, smoothly enter beneficial to experiment OK.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the head rod of creep test work piece holder that the utility model is provided;
Fig. 2 is a kind of structural representation of the second connecting rod of creep test work piece holder that the utility model is provided;
Fig. 3 is a kind of structural representation of creep test work piece holder that the utility model is provided.
Specific embodiment
Make further more detailed description to the technical solution of the utility model with reference to specific embodiment.Obviously, Described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.It is new based on this practicality Embodiment in type, the every other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made Example is applied, should all belong to the scope of the utility model protection.
The fixture clamped to the sample workpiece for meeting GB of φ 5mm used in current creep test is generally set For bar-shaped, there is the internal thread hole of M12.The Miniature fixture of the I-shaped small creep sample tabular of correspondence, this fixture has been only capable of To the effect for hanging up sample workpiece.Because screw thread is about 130mm, and work for the sample workpiece length that the fixture of M12 can be clamped Part two ends must have the screw thread of the M12 being coincide with fixture, and this fixture cannot clamp thinner shorter sample workpiece.And carry out it is compacted Become in process of the test, the workpiece of experiment is broken damage under testing machine effect.Value for metal material to be tested is higher When, large volume of sample cannot be generally provided and tested making workpiece, but it is micro- to take miniature sample material to be made Type workpiece is tested, and the clamping device of existing creep testing machine cannot be clamped to miniature workpiece, hinder experiment Carry out.
Refering to Fig. 1-Fig. 3, Fig. 1 is a kind of knot of the head rod of creep test work piece holder that the utility model is provided Structure schematic diagram;Fig. 2 is a kind of structural representation of the second connecting rod of creep test work piece holder that the utility model is provided;Figure 3 is a kind of structural representation of creep test work piece holder that the utility model is provided.The creep test work piece holder 100 includes The connecting rod 120 of head rod 110 and second, for carrying out creep test to micro metal workpiece., system high for cost of manufacture Make some big metal materials of difficulty, be cost-effective, the material sample for being often only capable of providing very small volume enters for experimenter Row experiment.The material sample of small volume is generally fabricated to I-shaped workpiece in industry.
In shaft-like, the shape of bar can be any, preferably cylinder type to head rod 110.The one end of head rod 110 End face be set to first end face 111, be a rounded face.The side wall of head rod 110 is set to the first side wall 112.In the first side Wall 112 is near the optional position of first end face 111 along the plane of first end face to one the oneth T of setting inside head rod 110 Type groove 113.T-slot generally includes vertically disposed translot and vertical slot.Vertical slot (sign) one end connection of the first T-slot 113 Translot (is not indicated), other end connection and perpendicular to first end face 111, it is preferred that vertical slot and first end face 111 be connected to this One of end face 111 is diametrically.First T-slot 113 is usually arranged as the optional position from the first side wall 112 along the position The through slot that the diameter in the section of head rod 110 extends to another avris wall.
The structure and implementation method of the second connecting rod 120 are similar to head rod 110, including same position set the Biend 121 and second sidewall 122, while setting the second T-slot 123 in the second connecting rod 120 in the same manner.
When first end face 111 is made and second end face 121 is contacted, can combine the first T-slot 113 and the second T-slot 123 It is an I-shaped groove 130.When the first T-slot 113 and the second T-slot 123 is set, the length and width of each translot and vertical slot are set Degree enables miniature I-shaped workpiece to be advisable in being put into I-shaped groove 130.When I-shaped workpiece is put into I-shaped groove 130, can be by The connecting rod 120 of head rod 110 and second is connected, while applying setting to 110 and second connecting rod of head rod 120 The effect of power, can carry out creep test to the I-shaped workpiece.
Further, the edge of first end face 111 of head rod 110 extends to the bearing of trend of head rod 110, shape Into a mating cavity 140.The area of the area less than the internal cavity of mating cavity 140 of the cross section of the second connecting rod 120 is set, makes second Connecting rod 120 can be stretched into mating cavity 140, second end face 121 is contacted with first end face 111, composition I-shaped groove 130.Simultaneously The position that is connected with the first T-slot 113 on the side wall of mating cavity 140 sets observation panel 141, with the preferably on mating cavity 140 Two observation panels 141 are set on the position of the connection of side wall 112, the width of observation panel 141 should be greater than or equal to the first T-slot The length of 113 translots, preferably equal to or slightly larger than the length of the translot of the first T-slot 113, now can by observation panel 141 its One of person miniature workpiece is placed into I-shaped groove 130, play the convenient effect for loading workpiece.Additionally, mating cavity 140 is Second connecting rod 120 is placed in mating cavity 140 by one connecting rod 110 and the second connecting rod 120 after I-shaped workpiece is connected Interior, firm connection function is played in the connection to the connecting rod 120 of head rod 110 and second.The connecting rod of mating cavity 140 and second Closely, gap is 0.1mm for 122 cooperation, it is ensured that the two will not occur crooked in process of the test, rock, and overall structure is steady It is fixed.
Further, it is opposite with first end face 111 and second end face 121 in the connecting rod 120 of head rod 110 and second A side wall on be threaded, the connecting rod 120 of head rod 110 and second is connected to by creep test machine by screw thread (not shown), to carry out creep test.
Meanwhile, V-type groove is designed with fixture 100, bar of extending is easily installed, grating scale is then connected, can be real-time Elongation of the measurement sample workpiece during creep test.
Prior art is different from, creep test fixture of the present utility model is used to carry out creep examination to micro metal workpiece Test, including head rod and the second connecting rod;Wherein, head rod includes a first end face and the first side wall, and from the Side wall optional position inwardly sets one first T-slot along first end face;Second connecting rod includes a second end face and the second side Wall, and one second T-slot is inwardly set from second sidewall optional position along second end face;First T-slot and the second T-slot are wrapped Translot and vertical slot are included, vertical slot is connected and vertical first end face and second end face respectively, and the first T-slot and the second T-slot coordinate shape Into an I-shaped groove.By the utility model, can clamp miniature workpiece carries out creep test, it is to avoid waste of material;Prevent creep Materials Fracture splashes during off-test;Convenient disassembly is quick;It is firm to piece-holder in experimentation, smoothly enter beneficial to experiment OK.
Implementation method of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is all It is the equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or directly or indirectly uses In other related technical fields, similarly it is included in scope of patent protection of the present utility model.

Claims (7)

1. a kind of creep test fixture, for carrying out creep test to micro metal workpiece, it is characterised in that including the first connection Bar and the second connecting rod;
Wherein, the head rod includes a first end face and the first side wall, and from the first side wall optional position along institute State first end face and one first T-slot is inwardly set;Second connecting rod includes a second end face and second sidewall, and from described Second sidewall optional position inwardly sets one second T-slot along the second end face;First T-slot and described second T-shaped Groove includes translot and vertical slot, and the vertical slot is connected and the vertical first end face and the second end face, a T respectively Type groove and second T-slot cooperatively form an I-shaped groove.
2. creep test fixture according to claim 1, it is characterised in that first T-slot and second T-slot From the first side wall and head rod described in the second sidewall insertion and second connecting rod, and the vertical slot end Set along the diameter of the first end face and the second end face.
3. creep test fixture according to claim 2, it is characterised in that the head rod and second connection Bar is cylinder type, and the head rod area of section of the area of section more than second connecting rod.
4. creep test fixture according to claim 1, it is characterised in that the first end face edge of the head rod Stretch out, form a mating cavity, the cavity cross-section area of the mating cavity is more than the area of section of second connecting rod, with Second connecting rod is placed in the mating cavity.
5. creep test fixture according to claim 4, it is characterised in that at least one is set on the mating cavity and is seen Cha Kou.
6. creep test fixture according to claim 5, it is characterised in that the observation panel is arranged at the mating cavity side Just to the position of the I-shaped groove on wall, it is used to observe the I-shaped groove.
7. creep test fixture according to claim 1, it is characterised in that the head rod and second connection Screw thread is respectively provided with the side wall of one end opposite with the first end face and the second end face on bar, to be connected to the creep Testing machine.
CN201621328747.0U 2016-12-06 2016-12-06 A kind of creep test fixture Active CN206258314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621328747.0U CN206258314U (en) 2016-12-06 2016-12-06 A kind of creep test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621328747.0U CN206258314U (en) 2016-12-06 2016-12-06 A kind of creep test fixture

Publications (1)

Publication Number Publication Date
CN206258314U true CN206258314U (en) 2017-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621328747.0U Active CN206258314U (en) 2016-12-06 2016-12-06 A kind of creep test fixture

Country Status (1)

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CN (1) CN206258314U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109612826A (en) * 2019-01-21 2019-04-12 哈尔滨理工大学 A kind of disc type pole type sample stretches and fatigue experiment fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109612826A (en) * 2019-01-21 2019-04-12 哈尔滨理工大学 A kind of disc type pole type sample stretches and fatigue experiment fixture

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