CN224109195U - A special clamping fixture for testing the hardness of pipe fittings - Google Patents
A special clamping fixture for testing the hardness of pipe fittingsInfo
- Publication number
- CN224109195U CN224109195U CN202520596441.6U CN202520596441U CN224109195U CN 224109195 U CN224109195 U CN 224109195U CN 202520596441 U CN202520596441 U CN 202520596441U CN 224109195 U CN224109195 U CN 224109195U
- Authority
- CN
- China
- Prior art keywords
- hardness
- testing
- slide rail
- test piece
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a special clamping tool for testing the hardness of a pipe joint, which relates to the technical field of hardness testing and comprises a base, wherein the bottom surface of the base is fixedly connected with an inserting rod for being inserted into a lifting table hole of a hardness tester, and a sliding rail table is connected onto the base in a sliding manner. It can be through setting up bracing piece and first mounting, can realize inside support and fixed in position to the test piece body for the test piece body has sufficient supporting force in its inside when carrying out the hardness test, avoids the cambered surface of test piece body to appear the profile deformation, through setting up slide rail platform and locking mechanism, can carry out hardness detection position to the test piece body and adjust and fix, make the detection position between a plurality of test piece bodies pass through adjustable fixed, reach the equal unified purpose of detection position of every test piece body, the inconsistent condition of test point position that appears when avoiding appearing the manual work and confirm the detection position.
Description
Technical Field
The utility model relates to the technical field of hardness testing, in particular to a special clamping tool for testing the hardness of a pipe joint.
Background
Hardness testing is one of the important indicators for detecting material properties, and is also one of the fastest and most economical test methods.
In the field of mechanical manufacturing industry or material research, hardness test of materials is often performed, raw materials can be processed into standard test according to requirements, but for hardness test of finished products, an adaptive tool is often required to be designed for clamping so as to meet the standard test requirements.
If the pipe joint with the large diameter and the thin pipe wall is not internally supported, the stress application device can deform the cambered surface of the test piece, in addition, the round test piece needs to be fixed in position, the test process cannot be displaced, the test sites of the test piece can only be selected manually, the test sites of different test pieces are not uniform, the test sites of different test pieces are irregular, and the test process is not standardized, and the result is inaccurate.
Disclosure of utility model
The utility model aims to make up the defects of the prior art, and provides a special clamping tool for testing the hardness of a pipe joint, when the device is used for testing the hardness, the device can internally support the pipe joint with large diameter and thin pipe wall through a rod-shaped structure, meanwhile, through the adjustable and fixed supporting positions, the detection of the positions of a plurality of samples is realized, and the hardness testing efficiency and accuracy of the pipe joint are further improved.
In order to achieve the purpose, the special clamping tool for testing the hardness of the pipe joint comprises a base, wherein the bottom surface of the base is fixedly connected with an inserting rod which is used for being inserted into a lifting table hole of a hardness tester, a sliding rail table is connected onto the base in a sliding mode, a locking mechanism used for limiting sliding of the sliding rail table is arranged on the sliding rail table, a supporting rod is detachably connected onto the upper portion of the sliding rail table, a first fixing piece and a test piece body are arranged on the outer surface of the supporting rod, and the first fixing piece is used for fastening the test piece body.
Further, the locking mechanism comprises a threaded rod which is in threaded connection with the inside of the threaded hole on the sliding rail platform and a friction block which is in sliding connection with the inside of the square groove in the sliding rail platform, and the threaded hole is communicated with the square groove and penetrates through the side face of the sliding rail platform.
Further, the threaded rod is rotationally connected with the friction block, and the threaded rod is used for driving the friction block to slide in the square groove on the sliding rail platform.
Further, the threaded rod is located the outside one end fixedly connected with helping hand knob of slide rail platform, the anti-skidding line has been seted up to helping hand knob's surface.
Further, the other end of the supporting rod is provided with a second fixing piece, and the second fixing piece is used for disassembling and installing the supporting rod on the sliding rail platform.
Further, a backing ring is sleeved on the part of the support rod between the sliding rail table and the test piece body, and the pipe diameter width value of the backing ring is adapted to the pipe diameter width value of the test piece body.
Furthermore, the outer surfaces of the base and the sliding rail platform are provided with scale grooves which are matched with each other.
Compared with the prior art, the special clamping tool for testing the hardness of the pipe joint has the following beneficial effects:
1. According to the utility model, the support rod and the first fixing piece are arranged, so that the test piece body can be internally supported and fixed in position, the test piece body has enough supporting force in the test piece body when the hardness test is performed, the profile deformation of the cambered surface of the test piece body is avoided, the hardness detection positions of the test piece body can be adjusted and fixed through the arrangement of the sliding rail table and the locking mechanism, the purpose that the detection positions of the test piece bodies are uniform is achieved through the adjustable fixing of the detection positions of the test piece bodies, the condition that the test points are inconsistent when the detection positions are manually determined is avoided, the condition of test errors is avoided, the test process is standardized, and meanwhile, the accuracy of the test result is improved.
Drawings
FIG. 1 is a schematic front view of a three-dimensional structure of the present utility model;
FIG. 2 is a schematic perspective view of a support bar according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a three-dimensional structure of the present utility model;
Fig. 4 is an enlarged schematic view of the structure a in fig. 3 according to the present utility model.
The device comprises a base, a plug rod, a sliding rail table, a locking mechanism, a 401, a threaded rod, a 402, a friction block, a 403, a power-assisted knob, a 5, a supporting rod, a 6, a first fixing piece, a 7, a test piece body, an 8, a second fixing piece, a 9 and a backing ring.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As described in the background art, if the pipe joint is not internally supported, the stress application device can deform the cambered surface of the test piece, the test sites of the test piece can be selected only manually, and the test sites of different test pieces are not uniform, so that the embodiment provides a special clamping tool for testing the hardness of the pipe joint, when the device is used for hardness testing, the pipe joint with the large diameter and the thin pipe wall can be internally supported through the rod-shaped structure, and meanwhile, the position detection among a plurality of samples is realized through the adjustable and fixed supporting positions, so that the hardness testing efficiency and accuracy of the pipe joint are further improved.
Referring to fig. 1-4, the embodiment provides a special clamping tool for testing hardness of a pipe joint, which comprises a base 1, wherein an inserting rod 2 for being inserted into a lifting table hole of a hardness tester is fixedly connected to the bottom surface of the base 1.
The base 1 is inserted into the hole of the lifting platform of the hardness tester through the inserted link 2, the hardness tester is a hardness measuring device, a lifting platform and various hole structures are arranged in the hardness tester, the device is inserted into the hole structures through the inserted link 2, the movement of the device is limited, and the lifting purpose of the lifting platform to lift and drive the device can be achieved.
In addition, even though the insertion rod 2 and the hole-shaped structure on the lifting platform have larger friction stress and are almost not rotatable, the angle adjustment of the device can still be realized through the insertion and extraction process, and particularly, the marking graduations can be arranged on the hole-shaped structure and the insertion rod 2.
The base 1 is connected with a sliding rail platform 3 in a sliding way, and a locking mechanism 4 used for limiting the sliding of the sliding rail platform 3 is arranged on the sliding rail platform 3.
As shown in fig. 1, the interactive connection between the base 1 and the sliding rail platform 3 is a special-shaped structure, so that the sliding rail platform 3 can only slide laterally on the base 1 but cannot move up and down.
The locking mechanism 4 comprises a threaded rod 401 which is in threaded connection with the inside of the upper threaded hole of the sliding rail platform 3, and a friction block 402 which is in sliding connection with the inside of the square groove of the sliding rail platform 3, and the threaded hole is communicated with the square groove and penetrates through the side surface of the sliding rail platform 3.
The threaded rod 401 is rotatably connected with the friction block 402, and the threaded rod 401 is used for driving the friction block 402 to slide in the square groove above the sliding rail platform 3.
One end of the threaded rod 401, which is positioned outside the sliding rail platform 3, is fixedly connected with a power assisting knob 403, and the outer surface of the power assisting knob 403 is provided with anti-skid patterns.
The locking mechanism 4 realizes the limit or release of the limit of the sliding rail platform 3 through the friction force between the friction block 402 and the base 1, specifically, when the threaded rod 401 rotates, the friction block 402 is limited by the square groove inside the sliding rail platform 3 and is not rotatable, the threaded rod 401 can transversely displace during rotation, the connection point between the threaded rod 401 and the friction block 402 can synchronously move, the friction block 402 is pulled or pushed, the friction block 402 is contacted with or separated from the base 1, and the aim of limiting through friction is fulfilled.
The upper portion of slide rail platform 3 can be dismantled and is connected with bracing piece 5, and the surface of bracing piece 5 is provided with first mounting 6 and test piece body 7, and first mounting 6 is used for fastening test piece body 7.
The test piece body 7 is a test piece to be tested, and is sleeved on the supporting rod 5, and then is fastened by the first fixing piece 6, specifically, the first fixing piece 6 is of a nut-shaped structure, the supporting rod 5 is of a threaded bulge rod-shaped structure matched with a threaded groove of the first fixing piece 6, the test piece body 7 is clamped between the sliding rail table 3 and the first fixing piece 6 by using threaded connection between the two structures, and the purpose of fastening the test piece body 7 is achieved
After the test piece body 7 is fastened, the test piece body 7 is subjected to hardness test through a hardness test structure of a hardness tester.
The other end of the supporting rod 5 is provided with a second fixing piece 8, and the second fixing piece 8 is used for dismounting and mounting the supporting rod 5 on the sliding rail platform 3.
The second fixing member 8 is identical to the first fixing member 6 in structure, and is used for limiting one end of the supporting rod 5 on the sliding rail table 3 and matching the test piece body 7 and the first fixing member 6, so that the supporting rod 5 is stable as a whole and the test piece body 7.
And a backing ring 9 is sleeved on the part of the support rod 5 between the sliding rail table 3 and the test piece body 7, and the pipe diameter width value of the backing ring 9 is adapted to the pipe diameter width value of the test piece body 7.
The pad ring 9 is arranged to avoid damage to the tube head of the test piece body 7, and correspondingly, the contact position of the test piece body 7 and the first fixing piece 6 can also be provided with a structure equivalent to the pad ring 9, and the pad ring 9 is made of hard deformable material.
The outer surfaces of the base 1 and the sliding rail platform 3 are provided with the adaptive scale grooves, the scale grooves are used for marking the displacement distance between the sliding rail platform 3 and the base 1, other marking measures can be correspondingly arranged for realizing, and the maximum efficiency mode is specifically selected according to the actual working condition.
The device is arranged on a liftable platform of a sclerometer by utilizing an inserting rod 2, then screwing down a first fixing piece 6, sleeving a test piece body 7 on the surface of a supporting rod 5, then screwing up the first fixing piece 6, fastening the test piece body 7 by utilizing the first fixing piece 6 and the surface of a sliding rail table 3, then rotating a power-assisted knob 403, enabling a threaded rod 401 to drive a friction block 402 to be separated from a base 1, releasing the limit of the sliding rail table 3, adjusting the sliding rail table 3 to a proper position on the base 1, and then reversely operating a structure in the locking mechanism 4, so that the friction block 402 is contacted with the base 1, the purpose of limiting by utilizing friction is achieved, and then hardness testing of the test piece body 7 is started.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520596441.6U CN224109195U (en) | 2025-03-31 | 2025-03-31 | A special clamping fixture for testing the hardness of pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520596441.6U CN224109195U (en) | 2025-03-31 | 2025-03-31 | A special clamping fixture for testing the hardness of pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224109195U true CN224109195U (en) | 2026-04-10 |
Family
ID=99348767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520596441.6U Active CN224109195U (en) | 2025-03-31 | 2025-03-31 | A special clamping fixture for testing the hardness of pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224109195U (en) |
-
2025
- 2025-03-31 CN CN202520596441.6U patent/CN224109195U/en active Active
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