CN219777309U - Positioning assembly tool for raised head bolt tensile test - Google Patents
Positioning assembly tool for raised head bolt tensile test Download PDFInfo
- Publication number
- CN219777309U CN219777309U CN202320210749.3U CN202320210749U CN219777309U CN 219777309 U CN219777309 U CN 219777309U CN 202320210749 U CN202320210749 U CN 202320210749U CN 219777309 U CN219777309 U CN 219777309U
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- CN
- China
- Prior art keywords
- tensile test
- positioning
- stop block
- raised head
- head bolt
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- 238000009864 tensile test Methods 0.000 title claims abstract description 75
- 238000009434 installation Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000002474 experimental method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a positioning assembly tool for a raised head bolt tensile test, which relates to the field of part tests and comprises a positioning sleeve, a stop block and a limiting piece, wherein a mounting channel and a positioning step are arranged on the positioning sleeve; before the tensile test, the upper tensile test plate, the raised head bolt, the nut and the lower tensile test plate are assembled through the positioning assembly tool, the consistency of the installation angles of the upper tensile test plate and the lower tensile test plate at each time is ensured under the action of the positioning assembly tool, the installation moment of the control bolt can be locked through single-sided stress application, and the accuracy and the reliability of the tensile test are improved.
Description
Technical Field
The utility model relates to the field of part tests, in particular to a positioning assembly tool for a raised head bolt tensile test.
Background
When the downward-pressing type tensile test is performed, the components in the tensile test are assembled, the components are placed on a tensile tool after the assembly is completed, and then the tensile tool is placed between an upper pressing plate and a lower pressing plate of a universal testing machine for the tensile test.
At present, a component for tensile test is assembled by manually stopping a spanner at a nut end of a tensile test plate and then carrying out locking installation of the component by applying force to a bolt end through a torque spanner; the double-sided matching installation mode is unfavorable for controlling the installation moment in the tensile test with the requirement on the installation moment, and the installation efficiency is lower. In addition, because of the special structure of the downward-pressing type tensile test tool, the installation angle of the upper tensile test plate and the lower tensile test plate in the assembly is highly required; at present, the method for manually adjusting and controlling the installation angles of the upper tensile test board and the lower tensile test board can lead to reduced assembly consistency of tensile test components and even interference to the cooperation of the components and the tensile tool, thereby greatly influencing test results.
Disclosure of Invention
The utility model aims to solve the problems and designs a positioning assembly tool for a raised head bolt tensile test.
The utility model realizes the above purpose through the following technical scheme:
positioning assembly fixture for raised head bolt tensile test, comprising:
a positioning sleeve; the positioning sleeve is provided with a mounting channel and a positioning step, and the positioning step is used for positioning the mounting angles of the upper stretching experiment plate and the lower stretching experiment plate;
at least one stop block; the stop block is used for preventing the rotation of the nut in the raised head bolt when the tensile test assembly is installed, the stop block is provided with a stop through hole, the stop block is in clearance fit with the installation channel, the shape of the stop through hole is matched with that of the nut, and the stop block is detachably installed in the installation channel;
a restriction member; the limiting piece is used for limiting the relative movement of the stop block and the locating sleeve when the tensile test assembly is installed, the nut is located in the stop through hole when the tensile test assembly is installed, the screw rod of the raised head bolt penetrates through the test through holes in the upper tensile test plate and the lower tensile test plate to be in threaded connection with the nut, and the locating sleeve is fixedly clamped on the test fixture.
The utility model has the beneficial effects that: before a tensile test is carried out, the upper tensile test plate, the raised head bolt, the nut and the lower tensile test plate are assembled through the positioning assembly tool, and during the assembly, the purpose of ensuring the consistency of the installation angles of the upper tensile test plate and the lower tensile test plate each time is realized under the action of the positioning assembly tool, the single-sided boosting locking can be carried out, the installation moment of the bolt is controlled, and the accuracy and the reliability of the tensile test are increased.
Drawings
FIG. 1 is a schematic structural view of a positioning assembly fixture for a nose bolt tensile test of the present utility model;
FIG. 2 is a schematic structural view of a positioning sleeve in a positioning assembly fixture for a nose bolt tensile test of the present utility model;
FIG. 3 is a schematic view of the structure of a stop block in the positioning assembly fixture for the nose bolt tensile test of the present utility model;
FIG. 4 is a schematic structural view of a stop screw in the positioning assembly fixture for the nose bolt tensile test of the present utility model;
wherein corresponding reference numerals are as follows:
the device comprises a 1-positioning sleeve, a 2-mounting channel, a 3-upper tensile test plate, a 4-lower tensile test plate, a 5-stop block, a 6-stop through hole, a 7-nut, an 8-screw rod, a 9-threaded hole and a 10-limit screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present utility model in detail with reference to the drawings.
As shown in fig. 1, 2, 3 and 4, a positioning assembly fixture for a nose bolt tensile test includes:
a positioning sleeve 1; the positioning sleeve 1 is provided with a mounting channel 2 and a positioning step, the positioning step is used for positioning the mounting angles of the upper stretching experiment plate 3 and the lower stretching experiment plate 4, the positioning sleeve 1 is made of structural steel, and the hardness is more than or equal to 42HRC;
at least one stop block 5; the stop block 5 is used for preventing the rotation of a nut 7 in the raised head bolt when the tensile test assembly is installed, a stop through hole 6 is formed in the stop block 5, the stop block 5 is in clearance fit with the installation channel 2, the shape of the stop through hole 6 is matched with that of the nut 7, the stop block 5 is detachably installed in the installation channel 2, the stop block 5 is made of structural steel, and the hardness is more than or equal to 42HRC;
a restriction member; the limiter is used for limiting the relative movement of the stop block 5 and the locating sleeve 1 when the tensile test assembly is installed, the nut 7 is located in the stop through hole 6 when the tensile test assembly is installed, the screw rod 8 of the raised head bolt penetrates through the test through holes in the upper tensile test plate 3 and the lower tensile test plate 4 to be in threaded connection with the nut 7, the locating sleeve 1 is fixedly clamped on the test fixture, the tensile test is carried out through test equipment, and the test equipment has the capability of carrying out the tensile test on the installed test assembly.
The section of the positioning step is of an octagonal structure.
The mounting channel 2 has an octagonal cross-section.
The cross section of the positioning step and the cross section of the mounting channel 2 are of regular octagonal structures, namely structures formed by 45 degrees of relative rotation of two squares, the size and the structure of the positioning step and the size of the mounting channel 2 are the same, and the positioning step is communicated with the mounting channel 2.
The cross-sectional structure of the stop through hole 6 matches the cross-sectional structure of the nut 7, and the size and cross-sectional structure between the stop through holes 6 of the two stops 5 are at least one different.
The limiting piece comprises at least one limiting sub piece, each limiting sub piece comprises a threaded hole 9 and a limiting screw 10, the threaded holes 9 are formed in the side wall of the locating sleeve 1, the threaded holes 9 are communicated with the mounting channel 2, the limiting screws 10 are in threaded connection with the threaded holes 9, during tensile test, the limiting screws 10 are in extrusion contact with the side wall of the stop block 5, the limiting screws 10 are made of steel, and the hardness is more than or equal to 42HRC.
The working principle of the positioning assembly tool for the raised head bolt tensile test is as follows:
before the tensile test: firstly, selecting a proper stop block 5 according to the size and shape of a nut 7, enabling the stop block 5 to move in a mounting channel 2 of a positioning sleeve 1 according to the thicknesses of an upper tensile test plate and a lower tensile test plate, achieving the purpose of adjusting the position of the stop block 5, enabling half thickness of the upper tensile test plate to be higher than the end face of the positioning sleeve 1, rotating a limit screw 10 after adjusting the position, changing the threaded connection depth of the limit screw 10 and a threaded hole 9, enabling the stop block 5 to be locked, enabling the stop block 5 and the positioning sleeve 1 to be in a relatively static state, and then enabling the positioning sleeve 1 to be fixedly placed on a test fixture; the screw rod 8 of the raised head bolt penetrates through the test through holes on the upper tensile test plate 3 and the lower tensile test plate 4 to be in threaded connection with the nut 7 to serve as a tensile test assembly, then the nut 7 is placed in the stop through hole 6 of the stop block 5, and the head of the screw rod 8 is forced and locked by using a torque wrench to achieve the required installation torque.
In the test of the same bolt interlayer thickness, the tensile test assembly after the installation is taken out, and the assembly of the next tensile test assembly is carried out without adjusting or replacing a tool in the process.
The positioning assembly fixture is simple in structure, high in practicability and easy to process; the installation moment control single-sided operation is convenient when the tensile test component is installed; the installation angles of the upper tensile test plate and the lower tensile test plate are ensured, and the assembly consistency is improved; the problem of interference between a tensile test assembly and a tensile test worker during assembly due to poor assembly consistency is solved; the replaceable stop block 5 has replaceability according to the different shapes of the nuts 7; and the assembly efficiency of the tensile test assembly is improved.
The technical scheme of the utility model is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the utility model fall within the protection scope of the utility model.
Claims (6)
1. Positioning assembly fixture for raised head bolt tensile test, which is characterized by comprising:
a positioning sleeve; the positioning sleeve is provided with a mounting channel and a positioning step, and the positioning step is used for positioning the mounting angles of the upper stretching experiment plate and the lower stretching experiment plate;
at least one stop block; the stop block is used for preventing the rotation of the nut in the raised head bolt when the tensile test assembly is installed, the stop block is provided with a stop through hole, the stop block is in clearance fit with the installation channel, the shape of the stop through hole is matched with that of the nut, and the stop block is detachably installed in the installation channel;
a restriction member; the limiting piece is used for limiting the relative movement of the stop block and the locating sleeve when the tensile test assembly is installed, the nut is located in the stop through hole when the tensile test assembly is installed, the screw rod of the raised head bolt penetrates through the test through holes in the upper tensile test plate and the lower tensile test plate to be in threaded connection with the nut, and the locating sleeve is fixedly clamped on the test fixture.
2. The positioning assembly fixture for the tension test of the raised head bolt according to claim 1, wherein the section of the positioning step is of an octagonal structure.
3. The positioning assembly fixture for a nose bolt tensile test of claim 2, wherein the cross section of the mounting channel is of octagonal configuration.
4. The positioning assembly fixture for the extension test of the raised head bolt according to claim 3, wherein the cross section of the positioning step and the cross section of the mounting channel are both in a regular octagonal structure.
5. The positioning assembly fixture for a tension test of a nose bolt according to any one of claims 1 to 4, wherein the cross-sectional structure of the stopper through hole is matched with the cross-sectional structure of the nut, and at least one of the dimensions and the cross-sectional structure between the stopper through holes of the two stoppers is different.
6. The positioning assembly fixture for a nose bolt tensile test of any one of claims 1-4, wherein the limiting member comprises at least one limiting sub-member, each limiting sub-member comprising a threaded hole and a limiting screw, the threaded hole being provided in a side wall of the positioning sleeve, the threaded hole being in communication with the mounting channel, the limiting screw being in threaded connection with the threaded hole, the limiting screw being in pressing contact with a side wall of the stop block during the tensile test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320210749.3U CN219777309U (en) | 2023-02-14 | 2023-02-14 | Positioning assembly tool for raised head bolt tensile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320210749.3U CN219777309U (en) | 2023-02-14 | 2023-02-14 | Positioning assembly tool for raised head bolt tensile test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777309U true CN219777309U (en) | 2023-09-29 |
Family
ID=88129648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320210749.3U Active CN219777309U (en) | 2023-02-14 | 2023-02-14 | Positioning assembly tool for raised head bolt tensile test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777309U (en) |
-
2023
- 2023-02-14 CN CN202320210749.3U patent/CN219777309U/en active Active
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