CN203011765U - Special clamping device matched with pipe ring stretching test - Google Patents
Special clamping device matched with pipe ring stretching test Download PDFInfo
- Publication number
- CN203011765U CN203011765U CN 201220546067 CN201220546067U CN203011765U CN 203011765 U CN203011765 U CN 203011765U CN 201220546067 CN201220546067 CN 201220546067 CN 201220546067 U CN201220546067 U CN 201220546067U CN 203011765 U CN203011765 U CN 203011765U
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- pipe ring
- pin
- special
- chuck
- stretching test
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Abstract
The utility model discloses a special clamping device matched with a pipe ring stretching test. A special chuck is a U-shaped die block; a pipe ring to be detected is placed in from a U-shaped notch of the special chuck; the back part of the U-shaped notch of the special chuck is integrally combined with the root part of a tail fixing part; a pin passes through a pin hole of the special chuck and steps cover the U-shaped notch of the special chuck; a pin cylinder of the pin is cylindrical; and the pipe ring to be detected is sleeved on the pin, tension is transferred by a stretching test machine to the special chuck through the tail fixing part, and furthermore, the tension is applied to the radial direction of the pipe ring to be detected through pulling the side of the pin cylinder of the pin, i.e., two tail fixing parts of different special clamping devices matched with the pipe ring stretching test are respectively clamped in different clamps of the stretching test machine, and a pipe ring sample is simultaneously sleeved on two pins. The special clamping device can be conveniently clamped on various stretching test machines and used for carrying out the pipe ring stretching test on steel pipes with various materials and sizes, and is stable in test result, small in shape and simple in assembly and disassembly.
Description
Technical field
The utility model relates to a kind of Special fixture for tensile test, and a kind of pipe ring Special fixture for tensile test particularly is applied to the tension test field of steel pipe pipe ring.
Background technology
The pipe ring tension test is the test method of a very important mensuration steel pipe transverse performance, is usually used in the type inspection of steel pipe, and be one of main technique test method that is applied in the world by the important feature steel pipe.And at present not enough, there is very large disappearance in the domestic attention degree that gives for this test in fundamental research, and accepted standard is also not well established and perfect, causes in the steel pipe field of using and may have certain potential safety hazard.The equipment cost that pipe ring cupping machine by special use carries out the pipe ring tension test is higher, therefore the domestic unit that has the pipe ring cupping machine is not also a lot of at present, moreover special-purpose pipe ring cupping machine purposes is more single, can not carry out diversified material tensile test.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of Special clamping device that coordinates the pipe ring tension test, can be held on easily on various cupping machines, steel pipe to various materials and size carries out the pipe ring tension test, test findings is stable, device shaped is small and exquisite simultaneously, and loading and unloading are simple.
Create purpose for reaching foregoing invention, the utility model adopts following technical proposals:
a kind of Special clamping device that coordinates the pipe ring tension test, comprise special carrier and afterbody fixed part, the afterbody fixed part is fixedly installed in the fixture of cupping machine, special carrier is U-shaped mould piece, pipe ring to be measured is inserted from the U-lag mouth of special carrier, the back portion of the U-lag mouth of special carrier is combined with the root one of afterbody fixed part, pin passes the pin-and-hole of special carrier and crosses over the U-lag mouth of special carrier, the pin of pin is cylindrical, pipe ring to be measured is enclosed within on pin, cupping machine transmits pulling force by the afterbody fixed part to special carrier, and then the pin side by the tractive pin radially applies pulling force to pipe ring to be measured, namely, to coordinate two afterbody fixed parts of the different Special clamping devices of pipe ring tension test to be held on respectively in the different fixtures of cupping machine, the pipe ring sample is inserted on two pins simultaneously.
The diameter of the pin of above-mentioned pin is more preferably greater than the wall thickness of pipe ring to be measured.
The utility model has following substantive distinguishing features and advantage compared with prior art:
1. the utility model coordinates the Special clamping device of pipe ring tension test to drop into to hang down the pipe ring tension test that realizes various material steel pipes, can coordinate various cupping machines to carry out the pipe ring tension test, test operation is convenient, and the device loading and unloading are simple, and test findings is accurate, stable;
2. the utility model coordinates the Special clamping device of pipe ring tension test to carry out the pipe ring tension test to the steel pipe pipe ring sample of different-diameter and wall thickness.
Description of drawings
Fig. 1 is the structural representation that the utility model embodiment one coordinates the Special clamping device of pipe ring tension test.
Fig. 2 is the special carrier of the utility model embodiment one and the one integrated structure schematic diagram of afterbody fixed part.
Fig. 3 is the special carrier of the utility model embodiment one and the one integrated structure vertical view of afterbody fixed part.
Fig. 4 is the pin configuration figure of the utility model embodiment one.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
Embodiment one:
referring to Fig. 1～Fig. 4, a kind of Special clamping device that coordinates the pipe ring tension test, comprise special carrier 1 and afterbody fixed part 2, afterbody fixed part 2 is fixedly installed in the fixture of cupping machine, special carrier 1 is U-shaped mould piece, pipe ring to be measured is inserted from the U-lag mouth of special carrier 1, the back portion of the U-lag mouth of special carrier 1 is combined with the root one of afterbody fixed part 2, pin 3 passes the pin-and-hole of special carrier 1 and crosses over the U-lag mouth of special carrier 1, the pin of pin 3 is cylindrical, pipe ring to be measured is enclosed within on pin 3, cupping machine transmits pulling force by afterbody fixed part 2 to special carrier 1, and then the pin side by tractive pin 3 radially applies pulling force to pipe ring to be measured.In the present embodiment, to coordinate two Special clamping devices up and down of pipe ring tension test to be held on respectively in the upper lower clamp of cupping machine, and respectively insert a pin 3 at special carrier 1, the pipe ring sample is inserted on two pins 3 simultaneously, by relatively moving of testing machine crossbeam, make sample generation radial deformation until rupture, thereby draw the pipe ring stretch test result.Test mould is selected the 40Cr steel, through modifier treatment, has extraordinary rigidity, can carry out the pipe ring stretching to some high tensile steel tubes and detect.
The present embodiment carries out the pipe ring tension test to 15CrMo alloy steel and two kinds of steel of 20# straight carbon steel respectively, the pipe ring specimen size is respectively Φ 152 * 8mm and Φ 146 * 10mm, 5 pipe ring samples are tested respectively in every group of test, test speed is 50mm/min, tensile strength after test is carried out record, and result is as shown in the table:
Test findings shows that to adopt the present embodiment to carry out to different steel the test findings that draws after the pipe ring tension test highly stable.
Embodiment two:
The technical scheme of the present embodiment and embodiment one is basic identical, and special feature is:
In the present embodiment, the diameter of the pin of pin 3 is greater than the wall thickness of pipe ring to be measured, prevent from causing surface of contact with the pipe ring sample less and make the pipe ring sample produce stress to concentrate because the diameter of the pin of pin 3 is too small, when causing carrying out tension test, the pipe ring sample ruptures in advance, with the accuracy of warranty test result, the present embodiment is the optimization technique scheme between clamp structure and practicality.
The above is illustrated the utility model embodiment by reference to the accompanying drawings; but the utility model is not limited to above-described embodiment; can also make multiple variation according to the purpose that utility model of the present utility model is created; all according to technical solutions of the utility model Spirit Essence and principle under make change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence; as long as meet the structure and the aufbauprinciple that coordinate the Special clamping device of pipe ring tension test for the utility model, all belong to protection domain of the present utility model.
Claims (2)
1. Special clamping device that coordinates the pipe ring tension test, comprise chuck (1) and afterbody fixed part (2), described afterbody fixed part (2) is fixedly installed in the fixture of cupping machine, it is characterized in that: described chuck (1) is U-shaped mould piece, pipe ring to be measured is inserted from the U-lag mouth of described chuck (1), the back portion of the U-lag mouth of described chuck (1) is combined with the root one of described afterbody fixed part (2), pin (3) passes the pin-and-hole of described chuck (1) and crosses over the U-lag mouth of described chuck (1), the pin of described pin (3) is cylindrical, pipe ring to be measured is enclosed within on described pin (3), cupping machine transmits pulling force by described afterbody fixed part (2) to described chuck (1), and then the pin side by the described pin of tractive (3) radially applies pulling force to pipe ring to be measured, namely, to coordinate two described afterbody fixed parts (2) of the different Special clamping devices of pipe ring tension test to be held on respectively in the different fixtures of cupping machine, the pipe ring sample is inserted on two pins (3) simultaneously.
2. the Special clamping device of cooperation pipe ring according to claim 1 tension test, it is characterized in that: the diameter of the pin of described pin (3) is greater than the wall thickness of pipe ring to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546067 CN203011765U (en) | 2012-10-24 | 2012-10-24 | Special clamping device matched with pipe ring stretching test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546067 CN203011765U (en) | 2012-10-24 | 2012-10-24 | Special clamping device matched with pipe ring stretching test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011765U true CN203011765U (en) | 2013-06-19 |
Family
ID=48603348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220546067 Expired - Fee Related CN203011765U (en) | 2012-10-24 | 2012-10-24 | Special clamping device matched with pipe ring stretching test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011765U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237011A (en) * | 2014-09-05 | 2014-12-24 | 天津大学 | Novel pipe girth weld test sample creep testing device |
| CN108801803A (en) * | 2018-08-09 | 2018-11-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Mine car bolt bending resistance detection method and mine car bolt bending resistance detection device |
| CN110044720A (en) * | 2019-03-11 | 2019-07-23 | 中国航发北京航空材料研究院 | A kind of multi-functional clamp suitable for nonstandard small sample creep performance test |
| CN113607631A (en) * | 2021-06-25 | 2021-11-05 | 山东大学 | Bonding slippage testing device and method |
| CN113624625A (en) * | 2021-07-14 | 2021-11-09 | 武汉长盈通光电技术股份有限公司 | Testing device and method for quantitatively evaluating hardness of optical fiber |
-
2012
- 2012-10-24 CN CN 201220546067 patent/CN203011765U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237011A (en) * | 2014-09-05 | 2014-12-24 | 天津大学 | Novel pipe girth weld test sample creep testing device |
| CN108801803A (en) * | 2018-08-09 | 2018-11-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Mine car bolt bending resistance detection method and mine car bolt bending resistance detection device |
| CN110044720A (en) * | 2019-03-11 | 2019-07-23 | 中国航发北京航空材料研究院 | A kind of multi-functional clamp suitable for nonstandard small sample creep performance test |
| CN113607631A (en) * | 2021-06-25 | 2021-11-05 | 山东大学 | Bonding slippage testing device and method |
| CN113624625A (en) * | 2021-07-14 | 2021-11-09 | 武汉长盈通光电技术股份有限公司 | Testing device and method for quantitatively evaluating hardness of optical fiber |
| CN113624625B (en) * | 2021-07-14 | 2022-10-11 | 武汉长盈通光电技术股份有限公司 | Testing device and method for quantitatively evaluating hardness of optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131024 |