CN109580342A - Clamping device is used in the test of cavitating water jet surface Hardening Treatment - Google Patents
Clamping device is used in the test of cavitating water jet surface Hardening Treatment Download PDFInfo
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- CN109580342A CN109580342A CN201811503364.6A CN201811503364A CN109580342A CN 109580342 A CN109580342 A CN 109580342A CN 201811503364 A CN201811503364 A CN 201811503364A CN 109580342 A CN109580342 A CN 109580342A
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- shaft
- axis
- clamping device
- driving motor
- water jet
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000005728 strengthening Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 description 11
- 238000005336 cracking Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention relates to cavitating water jet surface strengthening technology fields, more particularly to a kind of cavitating water jet surface Hardening Treatment test clamping device, the clamping device includes the horizontal console that can be moved along X/Y plane, the first axle that is extended along Z axis and can be gone up and down along Z axis, the second axis that can be rotated above the first axle and along self-axis line is set, can in XZ plane/YZ plane in relative to second axis rotation third axis, can in XZ plane/YZ plane in relative to the third axis rotation the 4th axis, the 5th axis that is connected with the 4th axis and can be rotated along self-axis line, the upper end of 5th axis is connected with the clamping tooling to clamping test pieces, clamping device of the invention not only adjustable test specimen position and angle, and there is rotation function, run through to easily have to nuclear plant pressure vessels The test specimen of structure carries out cavitating water jet intensive treatment.
Description
Technical Field
The invention relates to the technical field of cavitation water jet surface strengthening, in particular to a clamping device for a cavitation water jet surface strengthening treatment test.
Background
The cavitation water jet surface strengthening technology is to generate a uniform pressure stress layer on the surface of a material by utilizing the impact action generated by the rupture of high-pressure bubbles generated in high-speed water jet. The technology can eliminate the residual tensile stress caused by welding, cold working and the like, generate a surface layer with compressive stress, and can inhibit and delay the initiation of stress corrosion cracks on the surface of a welding joint, thereby improving the resistance of the material to stress corrosion cracking and prolonging the service life of the part.
The design of nuclear power station pressure vessel has the pipe structure that runs through, and the pipe that runs through is vertical arrangement, and the pressure vessel wall is the hemisphere, consequently runs through pipe and the wall has different inclination, through welded connection between them. The field operation experience shows that a plurality of stress corrosion cracking events occur at the welding part of the penetrating pipe and the wall surface, and the cracking part comprises a heat affected zone, a welding line and the like. The cracking will destroy the structural integrity of the pressure vessel, destroy the pressure boundary of a primary circuit, cause radioactive substance leakage, have personal safety hidden dangers, cause shutdown due to the personal safety hidden dangers, cause huge economic loss, and seriously affect the long-term safe operation of the nuclear power station. It is therefore highly desirable to develop a process for cavitation water jet treatment through pipe structures.
Due to the large range of influence of the welded parts of the through pipe, in order to carry out cavitation water jet treatment on the welded parts of the through structure with different inclination angles in a laboratory, the through pipe and a hemispherical wall in a certain range around the through pipe must be treated. At present, cavitation water jet treatment equipment is mature, but due to the fact that a penetrating pipe and a wall surface have different inclined angles, a sample is special in shape, and a special test clamp related to the penetrating pipe structure is not provided.
Disclosure of Invention
The invention provides a clamping device for a cavitation water jet surface strengthening treatment test based on the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: a clamping device for a cavitation water jet surface strengthening treatment test is suitable for a test piece with a through structure of a pressure vessel of a nuclear power station, wherein a through pipe penetrates through the wall of the pressure vessel and is connected with the wall of the through pipe through welding, included angles between the through pipe and the wall of the through pipe in different test pieces are different, the clamping device comprises a horizontal control table capable of moving along an XY plane, a first shaft extending along a Z axis and capable of lifting along the Z axis, a second shaft arranged above the first shaft and capable of rotating along the axis of the first shaft, a third shaft capable of rotating in an XZ plane relative to the second shaft, a fourth shaft capable of rotating in the XZ plane relative to the third shaft, and a fifth shaft connected with the fourth shaft and capable of rotating along the axis of the first shaft, and the upper end of the fifth shaft is connected with a clamping tool for clamping the test piece.
Furthermore, the clamping device further comprises a horizontal driving mechanism for driving the horizontal control table to move along an XY plane, a lifting driving mechanism for driving the first shaft to lift along a Z axis, a first driving motor for driving the second shaft to rotate around the self axis, a second driving motor for driving the third shaft to rotate around the second shaft, a third driving motor for driving the fourth shaft to rotate around the third shaft, and a fourth driving motor for driving the fifth shaft to rotate around the self axis.
Further, the first driving motor is mounted on the first shaft, and the second shaft is connected with an output shaft of the first driving motor; the fourth driving motor is installed on the fourth shaft, and the fifth shaft is connected with an output shaft of the fourth driving motor.
Further, the shaft axes of the second shaft and the first shaft are positioned on the same straight line; the axis lines of the fifth shaft and the fourth shaft are positioned on the same straight line.
Furthermore, one end of the second shaft is connected with one end of the third shaft through a first rotating joint, and the other end of the third shaft is connected with the fourth shaft through a second rotating joint.
Furthermore, the clamping device further comprises a control device electrically connected with and respectively controlling the horizontal driving mechanism, the lifting driving mechanism, the first driving motor, the second driving motor, the third driving motor and the fourth driving motor.
Furthermore, the clamping device further comprises a distance measuring sensor arranged on the nozzle and used for detecting the distance between the nozzle and the test piece, and the distance measuring sensor is electrically connected with the control device and used for transmitting the acquired data.
Further, the clamping tool comprises a chuck, and a holding groove for holding the test piece and a clamping shaft for clamping the test piece are arranged on the chuck.
Further, the accommodating groove comprises a first groove used for accommodating the wall part of the test piece and a second groove used for accommodating the part of the penetrating pipe penetrating out of the wall part, and the first groove is communicated with the second groove.
Furthermore, the number of the clamping shafts is three, and the number of the clamping shafts is two, and the two clamping shafts are respectively arranged on the sides of the test piece to be processed.
After adopting the technical scheme, compared with the prior art, the invention has the following advantages: the clamping device not only can adjust the position and the angle of the test piece, but also has the function of rotation, thereby conveniently and respectively carrying out cavitation water jet strengthening treatment on the penetrating pipe and the wall of the device in different test pieces.
Drawings
FIG. 1 is a schematic structural view of a clamping device for cavitation water jet surface strengthening treatment test of the present invention.
Wherein,
1. a test piece; 101. penetrating the pipe; 102. a vessel wall; 2. a horizontal console; 3. a first shaft; 4. a second shaft; 5. a third axis; 6. a fourth axis; 7. a fifth shaft; 8. clamping a tool; 801. a chuck; 802. accommodating grooves; 803. a clamping shaft; 9. a lifting drive mechanism; 10. a first drive motor; 11. a second drive motor; 12. a third drive motor; 13. a fourth drive motor; 14. a nozzle; 15. and a distance measuring sensor.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
As shown in figure 1, the invention discloses a clamping device for a cavitation water jet surface strengthening treatment test, which is suitable for a test piece 1 with a penetrating structure of a pressure vessel of a nuclear power station. The clamping device comprises a horizontal control table 2 capable of moving along an XY plane (namely the horizontal control table 2 can perform displacement control of an X axis and a Y axis on a horizontal plane), a first shaft 3 extending along the Z axis and capable of ascending and descending along the Z axis, a second shaft 4 arranged above the first shaft 3 and capable of rotating along the axis line of the second shaft, a third shaft 5 capable of rotating relative to the second shaft 4 in the XZ plane, a fourth shaft 6 capable of rotating relative to the third shaft 5 in the XZ plane, a fifth shaft 7 connected with the fourth shaft 6 and capable of rotating along the axis line of the fifth shaft, wherein the upper end part of the fifth shaft 7 is connected with a clamping tool 8 for clamping a test piece 1.
The clamping device further comprises a horizontal driving mechanism for driving the horizontal control platform 2 to move along the XY plane, a lifting driving mechanism 9 for driving the first shaft 3 to lift along the Z axis, a first driving motor 10 for driving the second shaft 4 to rotate around the axis of the first shaft 4, a second driving motor 11 for driving the third shaft 5 to rotate around the second shaft 4, a third driving motor 12 for driving the fourth shaft 6 to rotate around the third shaft 5, and a fourth driving motor 13 for driving the fifth shaft 7 to rotate around the axis of the fourth shaft 7.
In this embodiment, the first driving motor 10 is mounted on the first shaft 3, and the second shaft 4 is connected to an output shaft of the first driving motor 10; the fourth drive motor 13 is mounted on the fourth shaft 6, and the fifth shaft 7 is connected to the output shaft of the fourth drive motor 13. One end of the second shaft 4 is connected with one end of the third shaft 5 through a first rotary joint, and the other end of the third shaft 5 is connected with the fourth shaft 6 through a second rotary joint. In the embodiment, the axial leads of the second shaft 4 and the first shaft 3 are positioned on the same straight line; the axes of the fifth shaft 7 and the fourth shaft 6 are on the same straight line.
The horizontal driving mechanism, the lifting driving mechanism 9, the first driving motor 10, the second driving motor 11, the third driving motor 12 and the fourth driving motor 13 are respectively electrically connected with a control device, and the control device respectively controls the horizontal driving mechanism, the lifting driving mechanism and the fourth driving motor. Preferably, a distance measuring sensor 15 is arranged on the nozzle 14, the distance measuring sensor 15 is used for detecting the distance between the nozzle 14 and the test piece 1 in real time, and the distance measuring sensor 15 is electrically connected with the control device and is used for transmitting the acquired data to the control device in real time.
The clamping tool 8 comprises a clamping head 801, wherein an accommodating groove 802 is formed in the clamping head 801, the accommodating groove 802 is used for accommodating the test piece 1, and a clamping shaft 803 used for clamping the test piece 1 is further arranged on the clamping head 801. Preferably, there are at least three clamping shafts 803, and the clamping shafts 803 are respectively arranged at the sides of the test piece 1 to be processed.
The nozzle 14 for performing cavitation water jet surface strengthening on the test piece 1 is just opposite to the through pipe 101 and the wall 102, the cavitation water is sprayed out from the nozzle 14, the distance measuring sensor 15 is arranged on the nozzle 14, the distance between the nozzle 14 and the test piece 1 can be accurately measured by the distance measuring sensor 15, and the control device correspondingly adjusts the position of the test piece 1 according to data measured by the distance measuring sensor 15. The horizontal driving mechanism is used for adjusting the position of the horizontal control platform 2, and the lifting driving mechanism 9 is used for adjusting the height of the test piece 1. The second driving motor 11 and the third driving motor 12 are used for adjusting the inclination angle of the test piece 1, that is, the angle between the cavitation water jet and the surface of the test piece 1, and the first driving motor 10 and the fourth driving motor 13 are used for realizing the treatment of the cavitation water jet on the rotation of the test piece 1 along the axis.
When the clamping device is used for carrying out cavitation water jet treatment on the part penetrating through the pipe 101, the initial angle between the wall 102 and the nozzle 14 can be adjusted through the second driving motor 11 and the third driving motor 12, and the initial distance can be adjusted through the lifting driving mechanism 9.
When the clamping device provided by the invention is used for carrying out cavitation water jet treatment on the through pipe 101 in the test piece 1, the through pipe 101, the third driving motor 12 and the fourth driving motor 13 are positioned on the same axis, so that the cavitation water jet surface strengthening treatment of the outer wall of the through pipe 101 can be completed only by controlling the rotation of the fourth driving motor 13. The second driving motor 11 and the third driving motor 12 are adjusted, that is, the inclination angle of the penetrating pipe 101 can be adjusted, so that the treatment that the nozzle 14 and the axis of the penetrating pipe 101 form different angles is realized. By adjusting the elevation drive mechanism 9, it is possible to perform processing of the penetration pipe 101 at different distances from the nozzle 14.
When the clamping device provided by the invention is used for carrying out cavitation water jet treatment on the wall 102 in the test piece 1, the initial angle between the wall 102 and the nozzle 14 can be adjusted through the second driving motor 11 and the third driving motor 12, and the initial distance can be adjusted through the lifting driving mechanism 9. Because the inclined plane of the wall 102 is not perpendicular to the third driving motor 12 and the fourth driving motor 13, and has a certain inclination angle, the first driving motor 10, the second driving motor 11, the third driving motor 12, the fourth driving motor 13, and the lifting driving mechanism 9 need to be simultaneously started in the treatment process, so as to realize the cavitation water jet treatment of the wall 102. The first drive motor 10 and the fourth drive motor 13 are linked to each other, whereby the rotation of the test piece 1 can be realized. When processing from one side of the wall 102 to the other, in order to ensure that the nozzle 14 is at the same angle with the wall 102, the second driving motor 11 and the third driving motor 12 need to be adjusted, and the distance between the third shaft 5 and the fourth shaft 6 on the central axis will increase or decrease, and the lifting driving mechanism 9 needs to be adjusted to maintain the distance between the nozzle 14 and the wall 102.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a cavitation water jet surface strengthening handles experimental clamping device that uses, is applicable to the test piece that nuclear power station pressure vessel has the structure that runs through, runs through the pipe and link to each other through the welding between pressure vessel's wall and the wall, and it is different its characterized in that to run through contained angle between pipe and the wall in the test piece of difference: the clamping device comprises a horizontal control table capable of moving along an XY plane, a first shaft extending along a Z axis and capable of lifting along the Z axis, a second shaft arranged above the first shaft and capable of rotating along the axis of the first shaft, a third shaft capable of rotating relative to the second shaft in an XZ plane, a fourth shaft capable of rotating relative to the third shaft in the XZ plane, and a fifth shaft connected with the fourth shaft and capable of rotating along the axis of the first shaft, wherein the upper end part of the fifth shaft is connected with a clamping tool for clamping a test piece.
2. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 1, characterized in that: the clamping device further comprises a horizontal driving mechanism for driving the horizontal control table to move along an XY plane, a lifting driving mechanism for driving the first shaft to lift along a Z axis, a first driving motor for driving the second shaft to rotate around the axis of the second shaft, a second driving motor for driving the third shaft to rotate around the second shaft, a third driving motor for driving the fourth shaft to rotate around the third shaft and a fourth driving motor for driving the fifth shaft to rotate around the axis of the fifth shaft.
3. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 2, characterized in that: the first driving motor is arranged on the first shaft, and the second shaft is connected with an output shaft of the first driving motor; the fourth driving motor is installed on the fourth shaft, and the fifth shaft is connected with an output shaft of the fourth driving motor.
4. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 3, is characterized in that: the shaft axes of the second shaft and the first shaft are positioned on the same straight line; the axis lines of the fifth shaft and the fourth shaft are positioned on the same straight line.
5. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 1, characterized in that: the second shaft with the one end of third shaft links to each other through first rotation joint, the other end of third shaft with the fourth shaft passes through the second and rotates the joint and link to each other.
6. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 1, characterized in that: the clamping device further comprises a control device which is electrically connected with and respectively controls the horizontal driving mechanism, the lifting driving mechanism, the first driving motor, the second driving motor, the third driving motor and the fourth driving motor.
7. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 6, is characterized in that: the clamping device further comprises a distance measuring sensor arranged on the nozzle and used for detecting the distance between the nozzle and the test piece, and the distance measuring sensor is electrically connected with the control device and used for transmitting acquired data.
8. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 1, characterized in that: the clamping tool comprises a chuck, wherein the chuck is provided with a holding groove for holding the test piece and a clamping shaft for clamping the test piece.
9. The clamping device for the cavitation water jet surface strengthening treatment test according to claim 8, is characterized in that: the clamping shafts are respectively arranged on the sides of the test piece to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503364.6A CN109580342A (en) | 2018-12-10 | 2018-12-10 | Clamping device is used in the test of cavitating water jet surface Hardening Treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503364.6A CN109580342A (en) | 2018-12-10 | 2018-12-10 | Clamping device is used in the test of cavitating water jet surface Hardening Treatment |
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| Publication Number | Publication Date |
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| CN109580342A true CN109580342A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811503364.6A Pending CN109580342A (en) | 2018-12-10 | 2018-12-10 | Clamping device is used in the test of cavitating water jet surface Hardening Treatment |
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| CN (1) | CN109580342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331537A (en) * | 2020-04-10 | 2020-06-26 | 石河子大学 | Special clamping device for single cotton test |
| CN112763308A (en) * | 2020-12-29 | 2021-05-07 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
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| CN209485852U (en) * | 2018-12-10 | 2019-10-11 | 苏州热工研究院有限公司 | Clamping device is used in the test of cavitating water jet surface Hardening Treatment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111331537A (en) * | 2020-04-10 | 2020-06-26 | 石河子大学 | Special clamping device for single cotton test |
| CN112763308A (en) * | 2020-12-29 | 2021-05-07 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
| CN112763308B (en) * | 2020-12-29 | 2022-11-25 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
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