CN211904891U - Clamping device applied to anti-bending test of creep testing machine - Google Patents

Abstract

The utility model discloses a be applied to creep testing machine bending test's clamping device mainly relates to performance detecting instrument field. Including two anchor clamps that set up from top to bottom, anchor clamps include support, connecting rod, splint, fixing of connecting rod symmetry is between support and splint, every the splint of anchor clamps all are located between the support of another anchor clamps and the splint, the splint of every anchor clamps and the connecting rod sliding connection of another anchor clamps, two the equal swing joint in one side that splint are relative has the chuck, one side of support is equipped with the spliced pole. The beneficial effects of the utility model reside in that: the test bench can effectively clamp samples in different shapes, and extrudes and applies force to the samples, so that the stability of the test process is improved.

Description

Clamping device applied to anti-bending test of creep testing machine

Technical Field

The utility model relates to a performance detecting instrument field specifically is a clamping device for creep testing machine bending test.

Background

The creep endurance testing machine is a testing instrument controlled and measured by a computer. The tester is provided with a high-stability and high-precision servo loading system, and can perform standard high-temperature endurance and standard creep tests, high-temperature tensile tests, stress relaxation tests, periodic cyclic loading tests and the like at-70-150 ℃ on bar and plate samples of high-temperature alloy, titanium alloy, other ferrous metals, nonferrous metals and nonmetal. The whole machine consists of a host, an electric appliance cabinet and a distributed control system. The design, manufacture, inspection and use of the tester meet the following national standards and relevant industrial standards: GB2611-2007 general technical requirements of testing machines, GB/T10120-2013 tensile stress relaxation test method of metal materials, GB/T2039-2012 tensile creep and endurance test method of metals, HB5151-1996 tensile creep test method of metals at high temperature, HB5150-1996 tensile endurance test method of metals at high temperature, HB5207 endurance test method of metals at high temperature period, JJJG 276-2009 verification procedures of high temperature creep and endurance strength testing machines, and JJF1298-2011 evaluation outline of high temperature creep and endurance strength testing machine types.

Although the lasting creep testing machine is provided with testing conditions of professional precision, materials which can be used for testing are only limited to bars and plates made of alloy, metal or nonmetal materials, most of samples for civil engineering material testing are inorganic nonmetal material test pieces in shapes of solid cubes, cuboids or cylinders, and the like, and how long the materials are applied to the field, the climate, temperature and humidity environment change is complex, the existing testing machine cannot well clamp the samples in the shapes, and the existing clamping device mainly stretches the samples and cannot easily fix the samples in the shapes when stretching, so that the testing conditions cannot be met and ideal testing data can not be obtained.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to creep testing machine bending test's clamping device, it can carry out the centre gripping effectively to the sample of different shapes to extrude the application of force to the sample, improved the stability of experimentation.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

the utility model provides a be applied to experimental clamping device of creep testing machine bending resistance, includes two anchor clamps that set up from top to bottom, anchor clamps include support, connecting rod, splint, fixing of connecting rod symmetry is between support and splint, every the splint of anchor clamps all are located between the support of another anchor clamps and the splint, the splint of every anchor clamps and the connecting rod sliding connection of another anchor clamps, two the equal swing joint in one side that splint are relative has the chuck, one side of support is equipped with the spliced pole.

Furthermore, each clamping plate is fixedly provided with a limiting plate, through holes are symmetrically formed in the limiting plates, and the through holes are connected with the connecting rod of the other clamp in a sliding mode.

Further, the two clamping plates are vertically arranged.

Furthermore, the one end of spliced pole is equipped with the connector, it has the spread groove to open on the connector, be equipped with the mounting hole that runs through on the lateral wall of spread groove.

Furthermore, the chuck is movably inserted with the clamping plate, and an arc-shaped protective plate is arranged on the chuck.

One of the clamping heads is provided with a first bulge, and the other clamping head is provided with two second bulges.

Contrast prior art, the beneficial effects of the utility model reside in that:

the utility model discloses place the sample between the splint of two anchor clamps, exert the pulling force to the upper and lower both sides of device simultaneously during the use, two splint relative motion like this, sample to between two splint is extruded, the increase to the time of application of force and dynamics in the experimentation, tighter to the sample centre gripping, the centre gripping effect to the sample has been improved greatly, the accuracy of experimental data has been guaranteed, and can be according to the shape of sample, select different chucks to install on splint, the adaptability of device has been improved, the detection to most civil engineering material sample has been realized, very good experimental effect has been played among the practical application.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view taken along the direction a in fig. 2 according to the present invention.

Fig. 4 is a schematic structural diagram of the chuck of the present invention.

Reference numerals shown in the drawings:

1. a clamp; 2. a support; 3. a connecting rod; 4. a splint; 5. a chuck; 6. connecting columns; 7. a limiting plate; 8. a through hole; 9. a connector; 10. connecting grooves; 11. mounting holes; 12. an arc-shaped guard plate; 13. a first protrusion; 14. a second protrusion.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The utility model relates to a clamping device applied to creep testing machine bending test, the main structure comprises two clamps 1 arranged up and down, the structure of the upper and lower clamps 1 is completely the same, each clamp 1 is respectively connected with the pressure applying rod of the existing creep testing machine, when in use, the two clamps 1 are respectively stretched towards the upper and lower sides, the clamp 1 comprises a support 2, a connecting rod 3 and a clamping plate 4, the connecting rod 3 is symmetrically fixed between the support 2 and the clamping plate 4, the support 2 and the clamping plate 4 are respectively connected with the two ends of the connecting rod 3, preferably, the bolt connection can be used for connecting the support 2 and the clamping plate 4 together and playing a supporting role, the clamping plate 4 of each clamp 1 is positioned between the support 2 and the clamping plate 4 of another clamp 1, a test sample is placed between the two clamping plates 4, thus when stretching towards the upper and lower sides, compared with the acting force for directly stretching the sample in the prior art, the device can clamp the sample more and more tightly along with the enhancement of test time and force, so that the situation that the sample falls off in the test process is avoided, the clamping plate 4 of each clamp 1 is in sliding connection with the connecting rod 3 of the other clamp 1, when the sample is stretched towards the upper side and the lower side, the clamping plate 4 of one furniture 1 can move along the connecting rod 3 of the other clamp 1, the horizontal position in the up-and-down motion process of the two clamping plates 4 is relatively fixed, the situation that the clamping plates 4 are dislocated is avoided, the sample between the clamping plates is prevented from being extruded or damaged in a dislocated mode, the integrity of the sample is effectively ensured, the accuracy of test detection data is improved, and one side, opposite to the two clamping plates 4, is movably connected with the clamping head 5, chuck 5 can make according to the shape of different experimental samples, and the stability when making the device carry out the centre gripping to the sample of different shapes is stronger, has improved the adaptability and the practicality of device, one side of support 2 is equipped with spliced pole 6, spliced pole 6 and creep testing machine's the column connection of exerting pressure, preferred usable screw thread or bolt fastening utilize creep testing machine to drive two anchor clamps 1 towards upper and lower both sides motion through the connection of spliced pole 6, can carry out good cooperation with current device, need not carry out the repacking of device, have improved the adaptability of this device.

Preferably, every all be fixed with limiting plate 7 on the splint 4, preferably limiting plate 7 is the metal sheet, through the bolt fastening on splint 4, the symmetry is opened on limiting plate 7 has through-hole 8, through-hole 8 and the connecting rod 3 sliding connection of another anchor clamps 1, and connecting rod 3 of another anchor clamps 1 passes through-hole 8 and with through-hole 8 sliding connection, and such setting has avoided the condition that motion interference appears in two splint 4 horizontal position relatively fixed when, has improved the smoothness nature that the device used.

Preferably, two splint 4 set up perpendicularly, and connecting rod 3 that is connected with splint 4 on two anchor clamps 1 just can stagger each other like this, and is more smooth and easy in the motion process, very big reduction the condition that produces the motion and interfere between 1 part of two anchor clamps, improved the convenience when the device is stretched to both sides.

Preferably, the one end welded fastening of spliced pole 6 has connector 9, it has spread groove 10 to open on the connector 9, spread groove 10 suits with creep testing machine's the big or small of the post of exerting pressure, be equipped with the mounting hole 11 that runs through on the lateral wall of spread groove 10, set up mounting hole 11 on creep testing machine's the post of exerting pressure equally, during the use will exert the post and go deep into spread groove 10, utilize the column structure to insert until passing in the mounting hole 11 in the connector 9 in the mounting hole on the post of exerting pressure, realize fixedly with connector 9 and the post of exerting pressure, such installation and dismantlement are all very convenient, very big simplification the structure of device, improved the degree of cooperation that uses with current device.

Preferably, chuck 5 is pegged graft with splint 4 activity, and is concrete sets up the slot in two splint 4 relative one sides, chuck 5 is pegged graft in the slot, be equipped with arc backplate 12 on chuck 5, arc backplate 12 can carry out better centre gripping to cylindric or spherical sample, and planar structure's chuck 5 makes the sample produce the dislocation when adding cylindric or spherical sample, and it is spacing to utilize arc backplate 12 to carry out the both sides of sample, can improve the centre gripping stability to the sample greatly when experimental, guarantees the accuracy of test data.

Preferably, one of them be equipped with a first arch 13 on the chuck 5, another one be equipped with two the second on the chuck 5 protruding 14, first arch 13, second are protruding 14 and are rectangular shape arch, set up in the relative one side of two chucks 5, during the use, place the sample between two chucks 5, one side and the first protruding 13 contact of sample like this, one side and the protruding 14 contact of two seconds in addition form the three point centre gripping to the sample, be used for detecting the bending resistance performance of sample after exerting pressure, can improve the centre gripping effect to the sample, improve the accuracy that detects.

The working principle is as follows: the clamp plate 4 of each clamp 1 of the utility model is positioned between the support 2 and the clamp plate 4 of another clamp 1, when in use, a sample is placed between the two clamp plates 4, the connecting column 6 on the support 2 is connected with the pressing column of the existing creep testing machine, and the sample between the two clamp plates 4 can be extruded by the two clamp plates 4 by stretching towards the upper side and the lower side, and along with the increase of the test time and the test force, the clamping of the sample is tighter, the stability of clamping the sample is greatly improved, meanwhile, each clamp plate 4 is in sliding connection with the connecting rod 3 of another clamp 1, the relative fixation of the horizontal position of the two clamp plates 4 in the up-and-down movement process is realized, the dislocation is generated between the two clamp plates 4, the integrity of the sample is ensured, the accuracy of the test data is improved, and the simple and convenient matching with the existing creep testing machine can be carried out, need not carry out extra repacking, and chuck 5 can be applicable to the sample centre gripping of different shapes and use, possesses stronger practicality in the in-service use.

Claims (6)

1. The utility model provides a be applied to creep testing machine bending test's clamping device, includes two anchor clamps (1) that set up from top to bottom, anchor clamps (1) are including support (2), connecting rod (3), splint (4), fixing between support (2) and splint (4) of connecting rod (3) symmetry, its characterized in that: every splint (4) of anchor clamps (1) all are located between support (2) and splint (4) of another anchor clamps (1), and splint (4) of every anchor clamps (1) and connecting rod (3) sliding connection of another anchor clamps (1), two equal swing joint in one side that splint (4) are relative has chuck (5), one side of support (2) is equipped with spliced pole (6).

2. The clamping device applied to the bending test of the creep testing machine according to claim 1, characterized in that: every all be fixed with limiting plate (7) on splint (4), the symmetry is opened on limiting plate (7) has through-hole (8), through-hole (8) and connecting rod (3) sliding connection of another anchor clamps (1).

3. The clamping device applied to the bending test of the creep testing machine according to claim 1, characterized in that: the two clamping plates (4) are vertically arranged.

4. The clamping device applied to the bending test of the creep testing machine according to claim 1, characterized in that: the one end of spliced pole (6) is equipped with connector (9), it has spread groove (10) to open on connector (9), be equipped with mounting hole (11) that run through on the lateral wall of spread groove (10).

5. The clamping device applied to the bending test of the creep testing machine according to claim 1, characterized in that: the chuck (5) is movably inserted with the clamping plate (4), and an arc-shaped guard plate (12) is arranged on the chuck (5).

6. The clamping device applied to the bending test of the creep testing machine according to claim 1, characterized in that: one of the clamping heads (5) is provided with a first bulge (13), and the other clamping head (5) is provided with two second bulges (14).

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