CN211553560U - Detection clamp for weld breaking force of inner and outer strips of positioning grid - Google Patents
Detection clamp for weld breaking force of inner and outer strips of positioning grid Download PDFInfo
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- CN211553560U CN211553560U CN201922348147.0U CN201922348147U CN211553560U CN 211553560 U CN211553560 U CN 211553560U CN 201922348147 U CN201922348147 U CN 201922348147U CN 211553560 U CN211553560 U CN 211553560U
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Abstract
The utility model discloses an inside and outside strip welding seam breaking force detects anchor clamps of spacer grid, it includes tensile chuck and briquetting. The upper end part of the stretching chuck is a cylindrical pull rod, and the pull rod is used for clamping of the tensile testing machine during testing. The lower end of the stretching chuck is a cube chuck, and the cube chuck is used for clamping a sample during testing. Four bolt holes are uniformly distributed on the upper end face of the square chuck and comprise a first bolt hole, a second bolt hole, a third bolt hole and a fourth bolt hole, and the fixed compression bolt comprises a first compression bolt, a second compression bolt, a third compression bolt and a fourth compression bolt during testing. The beneficial effects are that: 1) the structure is simple, the test sample can be effectively compatible with the test sample, the test sample can be easily assembled, the test sample can be compatible with various tensile testing machines, and the test sample can be easily clamped with the testing machines; 2) when a sample is tested, the rigidity is good, no additional force can be brought to the test, and the real force value of the welding line of the sample can be accurately tested.
Description
Technical Field
The utility model belongs to nuclear fuel element makes the field, concretely relates to anchor clamps are used in detection of strip welding seam breaking force in spacer grid.
Background
The spacer grid in a nuclear fuel assembly is generally composed of 32 inner straps and 4 outer straps, and manufacturers typically connect the inner and outer straps of the spacer grid by laser welding or electron beam welding. In order to ensure the mechanical integrity of the spacer grid in the processes of transportation, loading, unloading, operation and the like of the fuel assembly, certain requirements are required on the breaking force of the welding seams of the inner strip and the outer strip of the spacer grid during the design of the fuel assembly, so that a manufacturer needs to accurately detect the breaking force of the welding seams of the inner strip and the outer strip of the spacer grid during the manufacture of the spacer grid so as to judge the welding quality of the welding seams of the spacer grid. The shape of the weld structure sample of the inner and outer strips of the positioning grid is special, and the conventional tensile clamp cannot clamp the weld sample of the inner and outer strips of the positioning grid, so that a special clamp needs to be designed for detecting the fracture force of the weld of the inner and outer strips of the positioning grid.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anchor clamps are used in detection of strip welding seam rupture force in spacer grid, the unable inside and outside strip welding seam sample problem of centre gripping spacer grid of conventional tensile anchor clamps can be solved to it, and can be accurate measure the strip rupture force in the spacer grid to judge the welding quality of spacer grid welding seam.
The technical scheme of the utility model as follows: a detection clamp for the fracture force of a welding line of an inner strip and an outer strip of a location grid frame comprises a stretching chuck and a pressing block.
The upper end part of the stretching chuck is a cylindrical pull rod, and the pull rod is used for clamping of the tensile testing machine during testing.
The lower end of the stretching chuck is a cube chuck, and the cube chuck is used for clamping a sample during testing.
Four bolt holes are uniformly distributed on the upper end face of the square chuck and comprise a first bolt hole, a second bolt hole, a third bolt hole and a fourth bolt hole, and the fixed compression bolt comprises a first compression bolt, a second compression bolt, a third compression bolt and a fourth compression bolt during testing.
The center part of the square chuck is provided with a transverse groove and a vertical groove, the transverse groove is used for placing a sample outer strip and a pressing block, and the vertical groove is used for placing a sample inner strip.
The briquetting be a cuboid that adapts to with square chuck and the outer strip of sample, processing has a vertical groove in its lower part, vertical groove is used for the sample assembled to avoid destroying the welding seam of sample.
The stretching chuck, the pressing block, the first pressing bolt, the second pressing bolt, the third pressing bolt and the fourth pressing bolt are all machined by tool steel, and the surfaces of the stretching chuck, the pressing block, the first pressing bolt, the second pressing bolt, the third pressing bolt and the fourth pressing bolt are subjected to rust-proof treatment.
The beneficial effects of the utility model reside in that: 1) the structure is simple, the test sample can be effectively compatible with the test sample, the test sample can be easily assembled, the test sample can be compatible with various tensile testing machines, and the test sample can be easily clamped with the testing machines; 2) when a sample is tested, the rigidity is good, no additional force can be brought to the test, and the real force value of the welding line of the sample can be accurately tested.
Drawings
Fig. 1 is an assembly view of a sample contained in a fixture for detecting the fracture force of the inner and outer strip weld joints of a spacer grid provided by the utility model;
FIG. 2 is a schematic view of a tension chuck;
FIG. 3 is a schematic view of a briquette;
FIG. 4 is a schematic view of a sample.
In the figure, 1 is a tensile clamp, 2 is a press block, 31 is a first compression bolt, 32 is a second compression bolt, 33 is a third compression bolt, 34 is a fourth compression bolt, 4 is a sample, 11 is a pull rod, 121 is a first bolt hole, 122 is a second bolt hole, 123 is a third bolt hole, 124 is a fourth bolt hole, 13 is a square clamp, 131 is a transverse groove, 132 is a vertical groove, 41 is a sample outer strip, 42 is a sample inner strip, and 43 is a welding seam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, the fixture for detecting the fracture force of the inner and outer strip weld joints of the spacer grid comprises a tensile collet 1 and a pressing block 2. Use the utility model provides a tensile anchor clamps carry out the centre gripping sample, accomplish the sample test on the testing machine.
As shown in fig. 1, the upper end of the tensile clamp 1 is a cylindrical pull rod, and the pull rod is used for clamping a tensile testing machine during testing. The lower end of the tensile chuck is a cube chuck 13, and the cube chuck is used for clamping a sample during testing. Four bolt holes including a first bolt hole 121, a second bolt hole 122, a third bolt hole 123 and a fourth bolt hole 124 are uniformly distributed on the upper end face of the square chuck 13, and the fixing compression bolts include a first compression bolt 31, a second compression bolt 32, a third compression bolt 33 and a fourth compression bolt 34 during testing. The center of the square chuck has a transverse groove 131 and a vertical groove 132. The transverse grooves 131 are used for placing outer strips and pressing blocks of the test sample, and the vertical grooves 132 are used for placing inner strips of the test sample.
Briquetting 2 is a cuboid that adapts to with square chuck 13 and the outer strip of sample, and it has a vertical groove to process its lower part, vertical groove is used for the sample assembled to avoid destroying the welding seam of sample.
The tensile chuck 1, the pressing block 2, the first pressing bolt 31, the second pressing bolt 32, the third pressing bolt 33 and the fourth pressing bolt 34 are all machined by tool steel, and the surfaces of the tensile chuck 1, the pressing block 2, the first pressing bolt 31, the second pressing bolt 32, the third pressing bolt 33 and the fourth pressing bolt 34 are subjected to rust-proof treatment.
The present invention will be described in detail with reference to the accompanying drawings. Referring to fig. 1 to 4, the embodiment is as follows:
the first step is as follows: placing the sample
The prepared outer strip 41 of sample 4 was placed in the transverse groove 131 of the cube chuck 13 and the inner strip 42 of the sample was placed in the vertical groove 132 of the cube chuck 13, taking care that it remained in the middle of the cube chuck when placing the sample. After the sample is placed, the pressing block 2 is placed in the transverse groove 132 of the square chuck 13 and is arranged on the upper part of the sample outer strip 41.
The second step is that: fixed sample
After the sample and the pressing block are placed in the square chuck, the four pressing bolts are respectively placed in the four bolt holes of the tensile chuck 1, and the four pressing bolts are respectively screwed down by adopting a screwdriver.
The third step: assembled with a tensile testing machine
After the sample is placed and fixed, the pull rod of the stretching chuck 1 is fixed on the upper chuck of the stretching sample machine. The inner strip 42 of the specimen is fixed to the lower jaw of the tensile tester.
The fourth step: testing
And after the third step is finished, starting a tensile testing machine to test the sample until the sample is damaged, and finishing the test.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and descriptions herein to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents.
In the description of the present invention, it should be understood that the terms "upper", "lower", "horizontal", "vertical", "center", and the like refer to the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the scope of the present invention.
Claims (7)
1. The utility model provides an inside and outside strip welding seam rupture force detects anchor clamps of spacer grid which characterized in that: the device comprises a stretching chuck (1) and a pressing block (2).
2. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 1, wherein: the upper end part of the stretching chuck (1) is a cylindrical pull rod, and the pull rod is used for clamping of a tensile testing machine during testing.
3. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 1, wherein: the lower end of the tensile chuck (1) is a cube chuck (13) which is used for clamping a sample during testing.
4. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 3, wherein: four bolt holes are uniformly distributed on the upper end face of the square chuck (13) and comprise a first bolt hole (121), a second bolt hole (122), a third bolt hole (123) and a fourth bolt hole (124), and the fixed compression bolt comprises a first compression bolt (31), a second compression bolt (32), a third compression bolt (33) and a fourth compression bolt (34) during testing.
5. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 3, wherein: the center part of the square chuck (13) is provided with a transverse groove (131) and a vertical groove (132), the transverse groove (131) is used for placing an outer strip and a pressing block of a sample, and the vertical groove (132) is used for placing an inner strip of the sample.
6. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 1, wherein: briquetting (2) be one with cuboid chuck (13) and the outer strip adaptation of sample cuboid, its lower processing has a vertical groove, vertical groove is used for the sample assembled to avoid destroying the welding seam of sample.
7. The spacer grid inner and outer strip weld fracture force detection fixture as claimed in claim 1, wherein: the tensile chuck (1), the pressing block (2), the first pressing bolt (31), the second pressing bolt (32), the third pressing bolt (33) and the fourth pressing bolt (34) are all machined by tool steel, and the surfaces of the tensile chuck, the pressing block and the third pressing bolt are subjected to rust prevention treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348147.0U CN211553560U (en) | 2019-12-24 | 2019-12-24 | Detection clamp for weld breaking force of inner and outer strips of positioning grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348147.0U CN211553560U (en) | 2019-12-24 | 2019-12-24 | Detection clamp for weld breaking force of inner and outer strips of positioning grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211553560U true CN211553560U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922348147.0U Active CN211553560U (en) | 2019-12-24 | 2019-12-24 | Detection clamp for weld breaking force of inner and outer strips of positioning grid |
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| CN (1) | CN211553560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486531A (en) * | 2022-02-24 | 2022-05-13 | 广船国际有限公司 | Fillet weld tensile fracture test device |
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2019
- 2019-12-24 CN CN201922348147.0U patent/CN211553560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486531A (en) * | 2022-02-24 | 2022-05-13 | 广船国际有限公司 | Fillet weld tensile fracture test device |
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