CN217765876U

CN217765876U - Metal high-temperature tensile test tool

Info

Publication number: CN217765876U
Application number: CN202221656195.1U
Authority: CN
Inventors: 王鑫
Original assignee: Zhuhai Zhonghang Aiwei Detection Technology Co ltd
Current assignee: Zhuhai Zhonghang Aiwei Detection Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-08
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a metal high-temperature tensile test tool, which comprises a fixing part, a locking part and two cushion blocks, wherein the top of the fixing part is provided with two positioning blocks, and the side surfaces of the two positioning blocks are provided with first positioning holes; the two cushion blocks are respectively abutted against the two side walls opposite to the two positioning blocks, the thicknesses of the two cushion blocks are consistent, and second positioning holes coaxial with the first positioning holes are formed in the side walls of the two cushion blocks. Mounting and testing machine coaxial arrangement, two locating pieces are used for installing the test piece for the test piece can be located the same axis with the testing machine, when carrying out tensile detection, improves the accuracy of detection data. Be equipped with the cushion between test piece and the locating piece, the retaining member is in the same place left locating piece, cushion, test piece, another cushion and the locating piece on right side are fixed, and the cushion can be changed to be applicable to the test piece of fixed different thickness sizes, practice thrift the cost.

Description

Metal high-temperature tensile test tool

Technical Field

The utility model relates to a metal test equipment technical field, in particular to experimental frock of metal high temperature tensile test.

Background

The mechanical property of the metal material is an important reference index for selecting materials of the aviation aircraft, the high-temperature durable stretching is one of important performance indexes, the accuracy and the timeliness of the detection performance are key factors related to the safety and the subsequent manufacturing of products, and the accuracy and the timeliness of the detection result are quality targets of each detection center.

In the existing test equipment, when a sample is installed, under the action of high temperature, the coaxial installation of the sample and the detection equipment is difficult to ensure, the installation is inconvenient, and the accuracy of detection data is not high. The prior equipment has troublesome operation and high detection cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tensile test frock of metal high temperature can improve the accuracy that detects data, reduces the detection cost.

According to the utility model discloses a tensile test frock of metal high temperature of some embodiments, include: the testing machine comprises a fixing piece, two cushion blocks and a locking piece, wherein a connecting groove is formed in the bottom of the fixing piece and is used for being coaxially connected with a testing machine, two positioning blocks are arranged at the top of the fixing piece and are symmetrically distributed by taking the central axis of the connecting groove as a symmetry center, first positioning holes are formed in the side faces of the two positioning blocks, and the two first positioning holes are located on the same axis; the two cushion blocks are respectively abutted against two side walls opposite to the two positioning blocks, the thicknesses of the two cushion blocks are consistent, and second positioning holes coaxial with the first positioning holes are formed in the side walls of the two cushion blocks; the locking piece can sequentially penetrate through the first positioning hole, the second positioning hole, the test piece, the other first positioning hole and the other second positioning hole to fix the test piece.

The method has the following beneficial effects: mounting and testing machine coaxial arrangement, the top of mounting is equipped with two locating pieces, and two locating pieces are used for installing the test piece for the test piece can be located the same axis with the testing machine, when carrying out tensile detection, improves the accuracy of detection data. Be equipped with the cushion between test piece and the locating piece, the retaining member is in the same place left locating piece, cushion, test piece, another cushion and the locating piece on right side are fixed, and the cushion can be changed to be applicable to the test piece of fixed different thickness sizes, practice thrift the cost.

According to some embodiments of the present invention, the fixing member, the cushion block and the locking member are made of a high temperature alloy material.

According to some embodiments of the invention, the locking member is a cylindrical pin.

According to some embodiments of the present invention, the diameter of the first positioning hole is equal to the diameter of the second positioning hole.

According to some embodiments of the invention, the cross-section of the connection groove is circular.

According to the utility model discloses a some embodiments, be equipped with the screw thread on the internal perisporium of connecting groove.

According to some embodiments of the invention, the rockwell hardness of the fixing, the cushion and the retaining member is greater than or equal to 60.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

FIG. 1 is an assembled cross-sectional view of a mount and spacer according to some embodiments of the present invention;

FIG. 2 is a top view of an assembly of a mount and spacer according to some embodiments of the present invention;

FIG. 3 is a schematic diagram of a spacer according to some embodiments of the present invention;

fig. 4 is a schematic structural view of a locking member according to some embodiments of the present invention.

Reference numerals: the fixing member 100, the connecting groove 110, the positioning block 120, the first positioning hole 121, the cushion block 200, the second positioning hole 210, and the locking member 300.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the left and right, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 4, in some embodiments of the present invention, the metal high temperature tensile test tool includes: the fixing part 100, the two cushion blocks 200 and the locking part 300, the bottom of the fixing part 100 is provided with a connecting groove 110, the connecting groove 110 is used for being coaxially connected with a testing machine, the top of the fixing part 100 is provided with two positioning blocks 120, the two positioning blocks 120 are symmetrically distributed by taking the central axis of the connecting groove 110 as a symmetric center, the side surfaces of the two positioning blocks 120 are provided with first positioning holes 121, and the two first positioning holes 121 are positioned on the same axis; the two cushion blocks 200 are respectively abutted against two opposite side walls of the two positioning blocks 120, the thicknesses of the two cushion blocks 200 are consistent, and second positioning holes 210 coaxial with the first positioning holes 121 are formed in the side walls of the two cushion blocks 200; the locker 300 may be sequentially inserted through the first positioning hole 121, the second positioning hole 210, the specimen, another first positioning hole 121, and another second positioning hole 210 to fix the specimen.

Specifically, the fixing member 100 and the testing machine are coaxially mounted, two positioning blocks 120 are arranged at the top of the fixing member 100, and the two positioning blocks 120 are used for mounting the test piece, so that the test piece and the testing machine can be located on the same axis, and the accuracy of detection data is improved during tensile detection. Be equipped with cushion 200 between test piece and the locating piece 120, retaining member 300 is together fixed with left locating piece 120, cushion 200, test piece, another cushion 200 and the locating piece 120 on right side, and cushion 200 can be changed to be applicable to the test piece of fixed different thickness sizes, practice thrift the cost.

Specifically, when a high-temperature tensile test is performed, the fixture 100 is connected to the testing machine by a screw, an internal thread is provided in the connection groove 110 of the fixture 100, an external thread is provided at the connection end of the testing machine, and the fixture 100 and the testing machine are coaxially installed. The upper connecting end and the lower connecting end of the testing machine are respectively connected with a fixing piece 100, and the fixing piece 100 is ensured to be coaxial with the testing machine through the coaxiality verification and calibration of the testing machine. After the fixing piece 100 and the testing machine are coaxially calibrated, a test piece to be detected is determined, and the thickness and the length of the cushion block 200 selected are determined according to the test piece. After confirming cushion 200 thickness and the length of choosing for use, place two blocks 200 between two locating pieces 120 that a mounting 100 top was equipped with, because two locating pieces 120 use the axis of connecting groove 110 as the symmetric center symmetric distribution, two blocks 200 thickness of choosing for use this moment are unanimous, two blocks 200 are respectively with two lateral walls butt that two locating pieces 120 are relative, treat that cushion 200 installs the back, place the test piece between two blocks 200, this moment because the mounting is symmetric center symmetric distribution and two blocks 200 thickness unanimous for the axis of connecting groove 110 along the axis of connecting groove 110, the test piece just in time is located the axis of testing machine, after the test piece has been installed, use retaining member 300 to pass first locating piece 120 on locating piece 120, second locating hole 210 and the test piece on the cushion 200, fix mounting 100, cushion 200 and test piece together. When having guaranteed the experiment, the test piece can be located the same axis with the testing machine, when carrying out tensile detection, improves the accuracy that detects data. After the two ends of the test piece are fixed by the two fixing pieces 100 arranged on the testing machine, a tensile test is carried out after high-temperature loading.

It should be noted that, when the test piece and the testing machine are not on the same axis, the test piece is influenced by a lateral force and an additional moment when being subjected to an axial tensile force, so that the stress state of the test piece is changed, and the accuracy of data of tensile testing is influenced.

In some embodiments of the present invention, the thickness dimension of the cushion block 200 ranges from 0.1 mm to 1.2mm, the length dimension ranges from 110 mm to 130mm, and the cushion blocks 200 with different dimensions can be used according to different test piece specifications for installation and matching.

In some embodiments of the present invention, the fixing member 100, the cushion 200 and the locking member 300 are made of high temperature alloy material.

Specifically, since the test is a high-temperature tensile test of metal, that is, a test piece needs to be heated at a high temperature during the test, the fixing member 100, the pad 200, and the locking member 300 are tools for fixing the test piece, and need to operate in a high-temperature environment. In order to ensure durability of the fixing member 100, the cushion block 200, and the locker 300 and reduce production cost, the fixing member 100, the cushion block 200, and the locker 300 are all made of a high temperature alloy material. In some embodiments of the present invention, the fixing member 100, the spacer 200 and the locking member 300 are made of GH4090 superalloy, and GH4090 superalloy is an age-hardening ni-based superalloy composed of ni, mo, al, etc. and contains about 70% ni. The GH4049 high-temperature alloy has good hot and cold processing properties, high-temperature strength below 950 ℃, small notch sensitivity, and good oxidation resistance and fatigue strength. The hot working plasticity can be improved by vacuum self-consumption or electroslag remelting.

Referring to fig. 4, in some embodiments of the present invention, retaining member 300 is a cylindrical pin.

In some embodiments of the present invention, the diameter of the first positioning hole 121, the diameter of the second positioning hole 210, and the diameter of the locking member 300 are equal.

Specifically, after the fixing member 100, the pad 200 and the test piece are placed, the retaining member 300 sequentially passes through the first positioning block 120, the second positioning hole 210, the test piece, the other second positioning hole 210 and the other first positioning block 120, so that the test piece does not shake during the tensile test, and the diameter of the retaining member 300 is equal to the diameters of the first positioning block 120 and the second positioning hole 210. The selected locking member 300 is a cylindrical pin, the cylindrical pin is low in cost, and the locking member 300 can be directly replaced when worn after multiple tests.

In some embodiments of the present invention, the cross section of the connection groove 110 is circular.

In some embodiments of the present invention, the inner peripheral wall of the connection groove 110 is provided with a thread.

Specifically, the fixing member 100 is in threaded connection with the testing machine, and the threaded connection has the advantages of good threaded locking force and convenience in detachment.

In some embodiments of the present invention, the fixing member 100, the cushion 200, and the locking member 300 have a rockwell hardness of 60 or more.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Tensile test frock of metal high temperature, its characterized in that includes:

the testing machine comprises a fixing piece, a testing machine and a positioning mechanism, wherein a connecting groove is formed in the bottom of the fixing piece and is used for being coaxially connected with the testing machine, two positioning blocks are arranged at the top of the fixing piece and are symmetrically distributed by taking the central axis of the connecting groove as a symmetry center, first positioning holes are formed in the side faces of the two positioning blocks, and the two first positioning holes are located on the same axis;

the two cushion blocks are respectively abutted against two side walls opposite to the two positioning blocks, the thicknesses of the two cushion blocks are consistent, and second positioning holes coaxial with the first positioning holes are formed in the side walls of the two cushion blocks;

the locking piece can sequentially penetrate through the first positioning hole, the second positioning hole, the test piece, the other first positioning hole and the other second positioning hole to fix the test piece.

2. The metal high-temperature tensile test tool according to claim 1, wherein the fixing member, the cushion block and the locking member are all made of high-temperature alloy materials.

3. The metal high-temperature tensile test tool according to claim 2, wherein the locking member is a cylindrical pin.

4. The metal high-temperature tensile test tool according to claim 3, wherein the size of the aperture of the first positioning hole, the size of the aperture of the second positioning hole and the diameter of the locking piece are equal.

5. The metal high-temperature tensile test tool according to claim 1, wherein the cross section of the connecting groove is circular.

6. The metal high-temperature tensile test tool according to claim 5, wherein threads are arranged on the inner peripheral wall of the connecting groove.

7. The metal high-temperature tensile test tool according to claim 1, wherein the Rockwell hardness of the fixing member, the cushion block and the locking member is greater than or equal to 60.