CN108896384A - Wedge gripping jaw for the tension test that is powered - Google Patents
Wedge gripping jaw for the tension test that is powered Download PDFInfo
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- CN108896384A CN108896384A CN201810863554.2A CN201810863554A CN108896384A CN 108896384 A CN108896384 A CN 108896384A CN 201810863554 A CN201810863554 A CN 201810863554A CN 108896384 A CN108896384 A CN 108896384A
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- main body
- working position
- jaw
- hole
- jaw main
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of Wedge gripping jaws for the tension test that is powered, and belong to tension test field.Working position insulating backside plate is fixedly connected on the one side of jaw main body by the through-hole B that screw passes through on working position insulating backside plate, and working position front insulation board is fixedly connected on the another side of jaw main body by the through-hole D that screw passes through on the insulation board of working position front；Side insulation plate is sticked at by way of bonding in the groove at jaw main body back；One end of guide connecting rod passes through through-hole A and is inserted into the through-hole C in jaw main body；The through-hole E that one end of stud terminal passes through working position front insulation board is connect with the internal screw thread of jaw main body, and matching nut and mating gasket are screwed in from the other end of stud terminal.Advantage is：It is novel, it is simple to manufacture, easy for installation, highly-safe, good compatibility.Low cost, versatility and interchangeability are good, are widely used, practical.
Description
Technical field
The present invention relates to tension test field, in particular to a kind of Wedge gripping jaw for the tension test that is powered.
Background technique
Plasticity refers to solid material under the effect of external force, and the ability being permanently deformed without destroying its integrality occurs,
Plasticity index is usually measured by stretching experiment to characterize.Metal material is widely applied solid material, and influence factor has
Many kinds, other than the internal factors such as the chemical component of metal material itself and tissue, temperature, deformation velocity even current density
Deng being all important external influence factors.
Influence phenomenon of the electric current to metal material plasticity is electro plastic effect, phenomenon be in foreign current or
Under person's electric field action, metal plasticity during plastic deformation is improved, resistance of deformation decline.In order to study magnesium alloy, titanium closes
The electro plastic effect of the hardly possible deformable metal such as gold, needs to carry out energization tension test to test button.In test, need to try
Sample is clamped among two fixtures of cupping machine or more, then in the sample both ends loading current clamped, while needing to do
Good insulated working, to ensure the person and property safety.
Wedge gripping locks principle using inclined-plane, and high-efficient, structure is small, and force rationally, can cope with the drawing of big test force
It stretches, is widely used on cupping machine.Known country patent No. CN201510054694（Publication date 2015.05.27）It is public
Opened it is a kind of for the fixture stretched that is powered, the fixture is a kind of Wedge gripping, by the insulation board that is fixed on clamp body,
Insulation locating part, insulation barrier and insulation, which pre-tighten the components such as block realization insulation and install binding post on the jaw of fixture, connects electricity
Source is to complete energization tension test.The fixture is disadvantageous in that its used insulating materials is each attached on fixture,
It when doing non-energized tension test, needs to change entire fixture, at high cost, versatility and interchangeability are poor, cumbersome heaviness；
In addition, the insulation board makes to be fixed by bolts on the inclined-plane of fixture and uses as sliding surface, then it is not centainly smooth complete
Whole plane, the use for influencing fixture are possibly even being bolted place's fracture failure, and there are security risks；Third, binding post
Relatively simple, no fixed function, when carrying out tension test, joint may generate loosening, and there are security risks.
Summary of the invention
The purpose of the present invention is to provide a kind of Wedge gripping jaws for the tension test that is powered, and solve the prior art
The existing above problem.The present invention is at low cost, versatility is good, and simple installation is safe and reliable.
Above-mentioned purpose of the invention is achieved through the following technical solutions：
For the Wedge gripping jaw for the tension test that is powered, screw 2 passes through the through-hole B3.2 on working position insulating backside plate 3 for work
Make the one side that position insulating backside plate 3 is fixedly connected on jaw main body 4, screw 2 passes through the through-hole on working position front insulation board 6
Working position front insulation board 6 is fixedly connected on the another side of jaw main body 4 by D6.2；Side insulation plate 5 is by way of bonding
It sticks in the groove at 4 back of jaw main body；One end of guide connecting rod 1 passes through through-hole A3.1 and is inserted into leading in jaw main body 4
In the C4.1 of hole；One end 7 of stud terminal passes through the through-hole E6.3 of working position front insulation board 6 and the internal screw thread of jaw main body 4
4.3 connections, matching nut 8 and mating gasket 9 are screwed in from the other end of stud terminal 7；The wedge that compact heap 10 and pairing use
Clamp jaw is mounted on the upper of clamp of stretching tester.
Guide connecting rod 1, working position insulating backside plate 3, side insulation plate 5, working position front insulation board 6 and the pressure
Tight block 10 is made of insulating material.
Side insulation plate 5 is pasted in the side of the jaw main body 4, and the height after stickup is than the side of jaw main body 4
It is higher by 1-2mm；The top of the jaw main body 4 is equipped with boss, 3 He of working position insulating backside plate being mounted in jaw main body 4
The height of working position front insulation board 6 is higher than boss outer surface 1-2mm.
The size of through-hole D6.2 on the working position front insulation board 6 is matched with sunk screw, and outside aperture is big,
Medial aperture is small, and funnel-form is presented.
The working position insulating backside plate 3 and working position front insulation board 6 is symmetric design.
Described one end for stating stud terminal 7 is fastenedly connected in jaw main body 4, the other end be fastenedly connected c-type, it is U-shaped,
O-shaped or clamp connecting terminal.
The beneficial effects of the present invention are：It is novel, it is simple to manufacture, easy for installation, highly-safe, good compatibility.Pincers
Mouth pairing uses, and realizes the connection between the insulation and jaw and tensile sample between jaw and cupping machine, realizes logical
The function that electricity stretches, low cost, versatility and interchangeability are good, are widely used, practical.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative example and its explanation is used to explain the present invention, and is not constituted improper limitations of the present invention.
Fig. 1 is perspective exploded view of the invention；
Fig. 2 is assembling schematic diagram of the invention；
Fig. 3 is the main view of jaw main body of the invention；
Fig. 4 is the top view of jaw main body of the invention；
Fig. 5 is the main view of working position insulating backside plate of the invention.
In figure：1, guide connecting rod；2, screw；3, working position insulating backside plate；4, jaw main body；5, side insulation plate；
6, working position front insulation board；7, stud terminal；8, matching nut；9, mating gasket；10, compact heap.3.1, through-hole A；
3.2, through-hole B；4.1, through-hole C；4.3, internal screw thread；6.2, through-hole D；6.3, through-hole E.
Specific embodiment
Detailed content and its specific embodiment of the invention are further illustrated with reference to the accompanying drawing.
Referring to figs. 1 to 5, the Wedge gripping jaw for the tension test that is powered of the invention, including guiding connection
Bar 1, screw 2, working position insulating backside plate 3, jaw main body 4, side insulation plate 5, working position front insulation board 6, bolt wiring
Column 7, matching nut 8, mating gasket 9 and compact heap 10, wherein the screw 2 passes through the through-hole on working position insulating backside plate 3
Working position insulating backside plate 3 is fixedly connected on the one side of jaw main body 4 by B3.2, and screw 2 passes through on working position front insulation board 6
Through-hole D6.2 working position front insulation board 6 is fixedly connected on to the another side of jaw main body 4；Side insulation plate 5 passes through bonding
Mode stick in the groove at 4 back of jaw main body；One end of guide connecting rod 1 passes through through-hole A3.1 and is inserted into jaw main body 4
On through-hole C4.1 in；One end 7 of stud terminal passes through the through-hole E6.3 and jaw main body 4 of working position front insulation board 6
Internal screw thread 4.3 connects, and matching nut 8 and mating gasket 9 are placed on appropriate location from the other end of stud terminal 7 screw-in；Pressure
The Wedge gripping jaw that tight block 10 and pairing use is mounted on the upper of clamp of stretching tester, completes assembling, can be used to be powered
Tension test.
Guide connecting rod 1, working position insulating backside plate 3, side insulation plate 5, working position front insulation board 6 and the pressure
Tight block 10 is made of insulating material, remaining component part is made of metal.
Shown in Figure 3, the jaw main body 4 uses symmetric design, multiple identical described for the stretching examination that is powered
The Wedge gripping jaw tested, which only needs to adjust position, can match use, convenient for manufacture, enhance versatility and interchangeability.The pincers
The side of mouthful main body 4 is equipped with groove, for pasting side insulation plate 5, plays the role of connection and limit, and when installation needs to guarantee
Height of the side insulation plate 5 after stickup is higher by 1-2mm than the side of jaw main body 4, makes described for the tension test that is powered
The side of Wedge gripping jaw is bonded and insulate with the inclined-plane of fixture, without using screw connection be in order to guarantee that faying face is smooth,
Prevent security risk caused by side insulation plate fracture failure.The upper boss of the jaw main body 4 plays position-limiting action, is inciting somebody to action
When working position insulating backside plate 3 and working position front insulation board 6 are installed to jaw main body 4, need to guarantee described two pieces absolutely
The height of listrium is higher than boss outer surface 1-2mm.
As shown in Fig. 4, the size of the through-hole D6.2 on working position front insulation board 6 is matched with sunk screw, outside
Aperture is big, and medial aperture is small, and funnel-form is presented, to guarantee that its metal part is lower than working position front insulation board after screw screws in
6 outerplanar prevents from being connected to fixture.Working position insulating backside plate 3 and working position front insulation board 6 are symmetric designs.
One end of the stud terminal 7 can be fastenedly connected in jaw main body 4, and the other end can be fastenedly connected c-type, U
A variety of connecting terminals such as type, O-shaped, clamp, and the position of wiring can be adjusted by adjusting nut and gasket, facilitate and is tested.
In use, by working position insulating backside plate 3, working position front insulation board 6 and side insulation plate 5 and jaw main body
4 carry out after closely connecting, and guide connecting rod 1 is inserted into the logical of jaw main body by the through-hole B3.2 of working position insulating backside plate
In the C4.2 of hole, then after stud terminal 7, matching nut 8 and mating gasket 9 are connect with jaw main body 4, connection compact heap 10 1
It rises and is installed on Wedge gripping.
Testing machine is started, by sample holder between upper and lower two fixtures, and it is described for being powered using multimeter test
Whether it is connected between the Wedge gripping jaw and sample of tension test, while determines whether the jaw and cupping machine are exhausted
Edge.The connecting terminal of power supply is connect respectively on upper and lower two binding posts after the completion of test, test parameters is set, powers on out
Begin to test.It after the completion of test, cuts off the power, power supply terminal is removed and is put well, after recording test data, sample is removed,
And cupping machine is resetted.
Embodiment：
For the Wedge gripping jaw for the tension test that is powered, including guide connecting rod, screw, working position insulating backside plate, jaw
Main body, side insulation plate, working position front insulation board, stud terminal, matching nut, mating gasket, compact heap.Jaw and drawing
3 faces for stretching testing machine contact are mounted on insulation board, other connecting portions of the jaw and cupping machine --- and guiding connects
Extension bar and compact heap are made of insulating material, and by grafting, the modes such as are bolted and are bonded and be connected to the jaw main body
On, play the role of insulation, and the stud terminal of adjustable wiring position is installed, has both made the jaw and cupping machine
Between insulate, and make to be connected between the jaw and sample, meet energization tension test requirement.Stud terminal and its mating spiral shell
Female, gasket is connected with the jaw main body directly through corresponding to through-hole on insulation board, is made of brass material, for being powered.
With the company that outside bore imperial palace side port diameter is small on working position front insulation board and working position insulating backside plate
Hole is connect, so that its top is no more than the lateral surface of the insulation board after screw installation.Made using bolt and its matching nut, gasket
For termination, Multiple Type connecting terminal, and adjustable position can be fastenedly connected.It is flat that wedge fixture, which clamps sample face,
Face and have cross flower-shape 1-2mm concave-convex.
The insulation guide connecting rod is inserted into groove, to keep clamping opening mobile by groove, is play the guiding role.
The foregoing is merely preferred embodiments of the invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All any modification, equivalent substitution, improvement and etc. made for the present invention,
It should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of Wedge gripping jaw for the tension test that is powered, it is characterised in that：Screw（2）Across working position insulating backside
Plate（3）On through-hole B（3.2）By working position insulating backside plate（3）It is fixedly connected on jaw main body（4）One side, screw（2）It wears
Cross working position front insulation board（6）On through-hole D（6.2）By working position front insulation board（6）It is fixedly connected on jaw main body（4）
Another side；Side insulation plate（5）Jaw main body is sticked at by way of bonding（4）In the groove at back；Guide connecting rod（1）
One end pass through through-hole A（3.1）It is inserted into jaw main body（4）On through-hole C（4.1）In；One end of stud terminal（7）It passes through
Working position front insulation board（6）Through-hole E（6.3）With jaw main body（4）Internal screw thread（4.3）Connection, matching nut（8）With match
Cover gasket（9）From stud terminal（7）The other end screw in；Compact heap（10）And the Wedge gripping jaw that pairing uses is mounted on
Clamp of stretching tester it is upper.
2. the Wedge gripping jaw according to claim 1 for the tension test that is powered, it is characterised in that：The guiding
Connecting rod（1）, working position insulating backside plate（3）, side insulation plate（5）, working position front insulation board（6）And compact heap（10）By
Insulating materials is made.
3. the Wedge gripping jaw according to claim 1 for the tension test that is powered, it is characterised in that：The jaw
Main body（4）Side paste side insulation plate（5）, and the height after stickup is than jaw main body（4）Side be higher by 1-2mm；Institute
State jaw main body（4）Top be equipped with boss, be mounted on jaw main body（4）On working position insulating backside plate（3）And working position
Front insulation board（6）Height be higher than boss outer surface 1-2mm.
4. the Wedge gripping jaw according to claim 1 for the tension test that is powered, it is characterised in that：The work
Position front insulation board（6）On through-hole D（6.2）Size matched with sunk screw, outside aperture is big, and medial aperture is small, and
Funnel-form is presented.
5. the Wedge gripping jaw according to claim 1 for the tension test that is powered, it is characterised in that：The work
Position insulating backside plate（3）With working position front insulation board（6）It is symmetric design.
6. the Wedge gripping jaw according to claim 1 for the tension test that is powered, it is characterised in that：Described states spiral shell
Bolt terminal（7）One end be fastenedly connected in jaw main body（4）On, the other end is fastenedly connected c-type, U-shaped, O-shaped or clamp wiring
Terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863554.2A CN108896384B (en) | 2018-08-01 | 2018-08-01 | Wedge-shaped clamp jaw for electrification tensile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863554.2A CN108896384B (en) | 2018-08-01 | 2018-08-01 | Wedge-shaped clamp jaw for electrification tensile test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108896384A true CN108896384A (en) | 2018-11-27 |
| CN108896384B CN108896384B (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810863554.2A Active CN108896384B (en) | 2018-08-01 | 2018-08-01 | Wedge-shaped clamp jaw for electrification tensile test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108896384B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849704A (en) * | 2019-10-30 | 2020-02-28 | 太原理工大学 | Test device for measuring mechanical property of material under action of pulse current |
| CN117330402A (en) * | 2023-11-27 | 2024-01-02 | 合肥工业大学 | Replaceable electric auxiliary stretching clamp and application method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849704A (en) * | 2019-10-30 | 2020-02-28 | 太原理工大学 | Test device for measuring mechanical property of material under action of pulse current |
| CN110849704B (en) * | 2019-10-30 | 2021-08-06 | 太原理工大学 | Test device for measuring mechanical property of material under action of pulse current |
| CN117330402A (en) * | 2023-11-27 | 2024-01-02 | 合肥工业大学 | Replaceable electric auxiliary stretching clamp and application method thereof |
| CN117330402B (en) * | 2023-11-27 | 2024-02-23 | 合肥工业大学 | Replaceable electric auxiliary stretching clamp and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108896384B (en) | 2020-11-27 |
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