CN112720381A - Sample clamp for testing X-ray residual stress - Google Patents
Sample clamp for testing X-ray residual stress Download PDFInfo
- Publication number
- CN112720381A CN112720381A CN202011452951.4A CN202011452951A CN112720381A CN 112720381 A CN112720381 A CN 112720381A CN 202011452951 A CN202011452951 A CN 202011452951A CN 112720381 A CN112720381 A CN 112720381A
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- China
- Prior art keywords
- sample
- base
- angle
- rotating shaft
- circular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/18—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in inclination
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention belongs to the field of clamps, and particularly relates to a sample clamp for testing X-ray residual stress. Comprises a base, a rotating shaft and a sample table; the sample table is connected with the base through rotating shafts on two sides, and the included angle between the sample table and the horizontal plane is adjustable by rotating the rotating shafts; the middle part of the sample table is provided with a rectangular sinking groove, one side surface of the rectangular sinking groove is provided with an expansion spring, the side surface opposite to the side surface provided with the expansion spring is provided with a screw rod, and the sample is clamped through the screw rod and the expansion spring. The X-ray residual stress test fixture can perform stable and accurate X-ray detection operation on the sample, is simple, flexible and convenient to operate, and can improve the clamping precision of the sample to the maximum extent and reduce the interference on the X-ray detection.
Description
Technical Field
The invention belongs to the field of clamps, and particularly relates to a sample clamp for testing X-ray residual stress.
Background
X-ray diffraction techniques are widely used in many fields, such as physics, chemistry, materials, biology, etc. At present, the commonly used analytical test methods in materials science are phase analysis and stress test methods using X-ray crystallography. The X-ray residual stress testing method is an important nondestructive stress testing method. The test principle is that the lattice strain of the material caused by a certain stress state is consistent with the macroscopic strain, the lattice strain of the material can be obtained by testing through an X-ray diffraction technology, and meanwhile, the macroscopic strain can be obtained according to elastic mechanics, so that the macroscopic strain can be calculated according to the measured lattice strain.
In recent years, the development of X-ray residual stress detection technology is rapid, and research and development units at home and abroad put forward various detection instruments. However, at present, there is no definite unified standard for part of the design requirements of the X-ray residual stress detection instrument, and for some single stress test requirements, different scientific research instrument units can also develop different operation platforms and sample clamping devices according to the test method and the design requirements. In addition, because the types of stress test samples are increasing day by day, the overall dimension is different, when the existing clamp for X-ray residual stress test is used for different test samples, the clamp is difficult to rapidly clamp and replace, the operation is complex and tedious, and the clamping precision is difficult to accurately control, so that the test result is seriously influenced.
Disclosure of Invention
The invention aims to provide a sample clamp for X-ray residual stress test, which can accurately fix the position of a test sample, quickly and conveniently clamp and replace the sample, and simultaneously can accurately adjust the distance and the angle of the test position of the sample.
The technical solution for realizing the purpose of the invention is as follows: a sample clamp for X-ray residual stress testing comprises a base, a rotating shaft and a sample table;
the sample table is connected with the base through rotating shafts on two sides, and the included angle between the sample table and the horizontal plane is adjustable by rotating the rotating shafts;
the sample platform middle part is equipped with the heavy groove of rectangle, and the side that the heavy groove of rectangle is equipped with expanding spring, and the side relative with the side that is equipped with expanding spring is equipped with the screw rod, realizes the centre gripping of sample through screw rod and expanding spring.
Furthermore, the base is a cylindrical ring body, two side end faces of the base, which are connected with the rotating shaft, are planes, the upper plane and the lower bottom surface of the base are both planes, and the other side faces are curved surfaces; circular through holes are arranged on two side end faces of the base, and the rotating shaft is connected with the base through the circular through holes.
Furthermore, one side of the rectangular sink groove, which is provided with the screw rod, is provided with a threaded hole, and the threaded hole is in threaded fit with the screw rod.
Furthermore, the end of the screw rod and the end of the telescopic spring, which are used for clamping the sample, are provided with side plates, and the sample is clamped through the side plates.
Furthermore, the device also comprises an angle pointer, an angle disc, a positioning pin and a screwing nut;
an angle marking is arranged outside the horizontal side face of one end, connected with the rotating shaft, of the base, an angle disc is arranged on the outer side of the angle marking through a screwing nut, and the angle disc and the rotating shaft are relatively fixedly arranged;
a plurality of circular positioning holes are uniformly distributed in the axial direction of the angle disc, circular positioning holes matched with the circular positioning holes in the angle disc are formed in the base, and after the rotating shaft is rotated, the positioning pins are inserted into the circular positioning holes in the angle disc and the circular positioning holes in the base, so that the positioning of the rotating shaft and the base is realized, and the fixing of the sample table at a certain angle is realized.
Furthermore, the angle adjusting range is 0-60 degrees on the left and right.
Compared with the prior art, the invention has the remarkable advantages that:
(1) according to the sample clamp for testing the X-ray residual stress, the base is a cylindrical ring body with good bearing capacity and uniform stress, the upper bottom surface and the lower bottom surface of the base are planes, and the clamp can be conveniently and accurately fixed in an X-ray detection instrument; the sample is placed in the sinking groove of the sample table, so that the position of the test sample can be accurately fixed, different test samples can be conveniently and quickly replaced, and the test efficiency of the sample is greatly improved.
(2) According to the sample clamp for testing the X-ray residual stress, the rectangular sinking groove is formed in the middle of the sample table, the positions of two ends of the sinking groove are determined, the testing position of the sample can be adjusted through the telescopic spring and the screw rod on the sample table, the moving distance of the screw rod can be accurately changed by utilizing the spiral fine-advancing structure on the screw rod, and the testing position of the sample can be accurately adjusted.
(3) According to the sample clamp for testing the X-ray residual stress, the sample table is connected with the rotating shaft, the tail end of the rotating shaft is fixedly connected with the angle adjusting part, the angle of the sample table is adjusted through the angle adjusting part, the numerical value of a sample to be detected in the sample table at different angles is measured, the angle adjusting part can accurately control the angle position, and the operation and adjustment can be conveniently and quickly carried out on different angle positions.
Drawings
FIG. 1 is a schematic view of the overall structure of the test fixture of the present invention.
FIG. 2 is a schematic view of a sample stage according to the present invention.
FIG. 3 is an assembly view of the sample holding structure of the present invention.
Fig. 4 is a partially enlarged schematic view of the angle adjusting structure in fig. 1.
Description of reference numerals:
1-base, 2-rotating shaft, 3-sample stage, 4-expansion spring, 5-angle marking line, 6-angle pointer, 7-angle disc, 8-positioning pin, 9-screwing nut and 10-screw rod.
Detailed Description
In fig. 1, a base 1 is a main body bearing structure of a clamp part, circular through holes are arranged on two side planes of the base 1, and a sample table 3 is connected with a rotating shaft 2 and fixed in position through the circular through holes on the two side planes of the base 1; a rectangular sinking groove is formed in the upper end face of the sample table 3 in a chiseled mode, one side plane of the rectangular sinking groove is connected with the telescopic spring 4, a circular through hole is formed in the other inner side plane of the rectangular sinking groove, internal threads are formed in the circular through hole, external threads are formed in the screw rod 10, the screw rod 10 is connected with the sample table 3 through the through hole, and the position distance of the screw rod 10 and the circular through hole is accurately adjusted through a spiral structure; an angle marking 5 is arranged on the plane on one side of the base 1, and a positioning through hole is arranged on the plane; the angle disc 7 is provided with a circular through hole, the position of the circular through hole corresponds to the position of the circular through hole in the base 1, the angle disc 7 and the base 1 are connected through the positioning pin 8, and meanwhile, the axial position of the angle disc 7 is fixed through the screwing nut 9.
As shown in fig. 2 and 3, the sample table 3 is used for placing a sample to be detected, a rectangular sinking groove of 90x30x6mm is cut in the middle of the sample table 3, and an inner side face of one end of the rectangular sinking groove is drilled
The screw rod 10 is provided with corresponding external threads, the screw rod 10 passes through an internal thread through hole on one side of the rectangular sinking groove, the other inner side plane of the rectangular sinking groove is connected with the telescopic spring 4, a sample to be detected is placed in the rectangular sinking groove, the telescopic spring 4 and the screw rod 10 which are connected with the inner side surface of the rectangular sinking groove are reused to clamp the sample to be detected, the sample to be detected is fixed in the sample table 3, and the stability in the detection process is ensured.
As shown in fig. 4, an angle marking 5 is arranged on a plane on one side of the base 1, the angle adjusting range is 0-60 degrees, a circular positioning through hole is arranged on the plane, a circular through hole is arranged on the angle disc 7, the position of the circular positioning through hole corresponds to the position of the through hole on the base 1, the angle disc 7 and the base 1 are connected by a positioning pin 8, and the axial position of the angle disc 7 is fixed by screwing a nut 9.
The invention accurately controls the position of the sample to be detected through the telescopic spring and the thread adjusting structure, and simultaneously can conveniently and accurately control the test angle of the sample through the angle adjusting structure, thereby realizing the multi-factor stable and reliable test operation of the sample.
Claims (6)
1. A sample clamp for X-ray residual stress testing is characterized by comprising a base (1), a rotating shaft (2) and a sample table (3);
the sample table (3) is connected with the base (1) through rotating shafts (2) on two sides, and the included angle between the sample table (3) and the horizontal plane is adjustable by rotating the rotating shafts (2);
the sample platform (3) middle part is equipped with the heavy groove of rectangle, and the heavy groove of rectangle's a side is equipped with expanding spring (4), and the side relative with the side that is equipped with expanding spring (4) is equipped with screw rod (10), realizes the centre gripping of sample through screw rod (10) and expanding spring (4).
2. The clamp according to claim 1, characterized in that the base (1) is a cylindrical ring body, two side end faces of the base (1) connected with the rotating shaft are planes, an upper plane and a lower bottom face of the base (1) are both planes, and the other side faces are curved surfaces; circular through holes are formed in two side end faces of the base (1), and the rotating shaft (2) is connected with the base (1) through the circular through holes.
3. The clamp according to claim 1, characterized in that the rectangular sink is provided with a threaded hole on the side of the screw (10), the threaded hole and the screw (10) being in threaded engagement.
4. The clamp according to claim 3, characterized in that the end of the screw (10) and the telescopic spring (4) for clamping the sample is provided with a side plate, and the clamping of the sample is realized through the side plate.
5. The clamp according to claim 1, characterized in that it further comprises an angle pointer (6), an angle disc (7), a positioning pin (8) and a tightening nut (9);
an angle marking (5) is arranged outside the horizontal side face of one end, connected with the rotating shaft (2), of the base (1), an angle disc (7) is arranged on the outer side of the angle marking (5) through a screwing nut (9), and the angle disc (7) and the rotating shaft (2) are relatively fixedly arranged;
a plurality of circular positioning holes are uniformly distributed in the axial direction of the angle disc, circular positioning holes matched with the circular positioning holes in the angle disc (7) are formed in the base (1), and after the rotating shaft (2) is rotated, the positioning pins (8) are inserted into the circular positioning holes in the angle disc (7) and the base (1), so that the rotating shaft (2) and the base (1) are positioned, and the sample platform is fixed at a certain angle.
6. The clamp of claim 5, wherein the angular adjustment range is 0-60 ° to the left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452951.4A CN112720381A (en) | 2020-12-11 | 2020-12-11 | Sample clamp for testing X-ray residual stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452951.4A CN112720381A (en) | 2020-12-11 | 2020-12-11 | Sample clamp for testing X-ray residual stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112720381A true CN112720381A (en) | 2021-04-30 |
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ID=75599335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011452951.4A Pending CN112720381A (en) | 2020-12-11 | 2020-12-11 | Sample clamp for testing X-ray residual stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112720381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199433A (en) * | 2021-11-19 | 2022-03-18 | 张誉元 | Wall surface residual stress test fixture and operation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067187A (en) * | 2015-07-31 | 2015-11-18 | 武汉钢铁(集团)公司 | Hole-drilling method residual stress calibrating device |
| CN205374922U (en) * | 2015-11-10 | 2016-07-06 | 上海与德通讯技术有限公司 | Angle of visibility testing arrangement |
| CN207655172U (en) * | 2017-12-15 | 2018-07-27 | 湛江中科技术服务有限公司 | A kind of Food Inspection heating auxiliary device |
| CN108758237A (en) * | 2018-08-24 | 2018-11-06 | 南京铁道职业技术学院 | A kind of adjustable support of bridge multiple spot dynamic deformation monitoring DIC systems |
| CN208476728U (en) * | 2018-05-23 | 2019-02-05 | 深圳市集美新材料股份有限公司 | A kind of color chips bleeding test fixture |
| CN210401168U (en) * | 2019-07-29 | 2020-04-24 | 重庆元昇塑胶制品有限公司 | Stainless steel composite sheet pitting test fixture |
| CN111716115A (en) * | 2020-06-30 | 2020-09-29 | 深圳市吉百顺科技有限公司 | Tungsten steel anchor clamps with forced air cooling structure just makes things convenient for material to take |
-
2020
- 2020-12-11 CN CN202011452951.4A patent/CN112720381A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067187A (en) * | 2015-07-31 | 2015-11-18 | 武汉钢铁(集团)公司 | Hole-drilling method residual stress calibrating device |
| CN205374922U (en) * | 2015-11-10 | 2016-07-06 | 上海与德通讯技术有限公司 | Angle of visibility testing arrangement |
| CN207655172U (en) * | 2017-12-15 | 2018-07-27 | 湛江中科技术服务有限公司 | A kind of Food Inspection heating auxiliary device |
| CN208476728U (en) * | 2018-05-23 | 2019-02-05 | 深圳市集美新材料股份有限公司 | A kind of color chips bleeding test fixture |
| CN108758237A (en) * | 2018-08-24 | 2018-11-06 | 南京铁道职业技术学院 | A kind of adjustable support of bridge multiple spot dynamic deformation monitoring DIC systems |
| CN210401168U (en) * | 2019-07-29 | 2020-04-24 | 重庆元昇塑胶制品有限公司 | Stainless steel composite sheet pitting test fixture |
| CN111716115A (en) * | 2020-06-30 | 2020-09-29 | 深圳市吉百顺科技有限公司 | Tungsten steel anchor clamps with forced air cooling structure just makes things convenient for material to take |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199433A (en) * | 2021-11-19 | 2022-03-18 | 张誉元 | Wall surface residual stress test fixture and operation method thereof |
| CN114199433B (en) * | 2021-11-19 | 2024-04-23 | 张誉元 | Wall residual stress test fixture and operation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
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| RJ01 | Rejection of invention patent application after publication |