CN211576766U - Clamping device for self-punching riveting cross-shaped lap joint test piece - Google Patents
Clamping device for self-punching riveting cross-shaped lap joint test piece Download PDFInfo
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- CN211576766U CN211576766U CN201921626752.3U CN201921626752U CN211576766U CN 211576766 U CN211576766 U CN 211576766U CN 201921626752 U CN201921626752 U CN 201921626752U CN 211576766 U CN211576766 U CN 211576766U
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- boss
- test piece
- auxiliary pressing
- shaped block
- panel
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000004080 punching Methods 0.000 title abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 32
- 238000009661 fatigue test Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000004154 testing of material Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a from punching clamping device of riveting cross overlap joint test piece belongs to experimental apparatus technical field. The utility model discloses an go up T type piece, lower T type piece, go up supplementary pressure strip, rectangle recess, screw, nut, upper plate and hypoplastron down. The upper T-shaped block and the lower T-shaped block are respectively provided with a boss, a rectangular groove, a screw hole and a clamping handle, and the upper auxiliary pressing plate and the lower auxiliary pressing plate are respectively provided with a boss and a through hole. The utility model discloses can realize the fixed of the cross overlap joint test piece that the riveting is good, can play the tight and fixed action of clamp and improve experimental stability and security in self-punching riveting cross overlap joint test piece peeling off and fatigue test.
Description
Technical Field
The utility model relates to a from punching clamping device of riveting cross overlap joint test piece belongs to panel experimental apparatus's technical field.
Background
The connection mode of panel has from punching rivet, friction stir welding, laser spot welding and impression etc. for the statics performance and the fatigue property of test piece joint, needs to carry out statics tensile test and fatigue test to panel usually, and panel need fix and press from both sides tightly it through anchor clamps when experimental to it is more convenient to the clamping on the material testing machine. When the traditional test piece fixing and clamping method is used, the acting force exerted by the chuck of the material testing machine cannot act on the test piece joint singly and stress concentration is easy to generate, so that the testing variable is increased and the testing reliability is reduced.
Disclosure of Invention
The utility model provides a from punching clamping device of riveting cross overlap joint test piece for the fixing of test piece when statics tensile test and fatigue test, cause the problem that the variable is too much and the precision is not high with solving traditional test piece fixing method.
The utility model discloses realize according to following technical scheme: a clamping device for a self-piercing riveting cross-shaped lap joint test piece comprises an upper T-shaped block 1 and two lower auxiliary pressing plates 2 for fixing an upper plate 8, and a lower T-shaped block 5 and two upper auxiliary pressing plates 3 for fixing a lower plate 4, wherein the upper T-shaped block 1 comprises a rectangular panel, an upper rectangular clamping handle 10 is vertically fixed at the center of the upper surface of the rectangular panel, a boss I12 protruding outwards is arranged on the lower surface of the rectangular panel along the axial direction, a plurality of through holes I11 are formed in the rectangular panel on two sides of the boss I12, and a rectangular groove 9 is formed in the middle of the boss I12;
the lower T-shaped block 5 comprises a rectangular panel which is the same as the upper T-shaped block 1, a boss I12 which protrudes outwards is arranged on the upper surface of the rectangular panel along the axial direction, a plurality of through holes are formed in the rectangular panel at two sides of the boss I12, a rectangular groove 9 is formed in the middle of the boss I12, a lower clamping handle 13 is vertically fixed in the center of the lower surface of the rectangular panel, and the lower clamping handle 13 is perpendicular to the upper clamping handle 10;
the lower auxiliary pressing plate 2 comprises a panel and a boss II 14 fixed on the panel, through holes II 15 are formed in the panels on two sides of the boss II 14, and the positions of the boss II 14 and the through holes II 15 on the lower auxiliary pressing plate 2 correspond to the positions of a boss I12 and a through hole I11 on the upper T-shaped block 1 respectively;
the upper auxiliary pressing plate 3 and the lower auxiliary pressing plate 2 are identical in structure, and rectangular notches 16 are formed in two sides of one end of the panel of the upper auxiliary pressing plate 3.
Preferably, the length and width of the boss I12 are the same as the upper plate 8.
The utility model discloses a theory of operation does: the upper plate and the lower plate are in cross lapping, the upper boss of the upper T-shaped block is completely aligned and matched with the upper plate of a well-connected cross lapping test piece, the bosses of two lower auxiliary pressing plates are completely aligned and matched with the two sides of the lapping area of the upper plate, and the upper T-shaped block and the lower auxiliary pressing plates are locked by screws and nuts to realize the fixation of the upper plate of the test piece. The method for fixing the lower plate of the test piece is completely the same as the method for fixing the upper plate. After the cross-shaped lap joint test piece is completely fixed, the upper rectangular clamping handle and the lower rectangular clamping handle are respectively clamped by the upper chuck and the lower chuck of the material testing machine, and the clamping of the test piece is completely finished.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides a from punching clamping device of riveting cross overlap joint test piece.
2. The utility model discloses can make the test piece only at the joint portion atress, improve experimental precision.
3. The utility model discloses can the test piece overlap joint regional outside panel stress concentration, reduce experimental variable.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the upper T-shaped block of the present invention;
FIG. 3 is a schematic view of the lower T-shaped block of the present invention;
fig. 4 is a schematic diagram of the structure of the lower auxiliary pressing plate of the present invention;
FIG. 5 is a schematic view of the upper auxiliary pressing plate mechanism of the present invention;
the reference numbers in the figures are: 1-upper T-shaped block, 2-lower auxiliary pressing plate, 3-upper auxiliary pressing plate, 4-lower plate, 5-lower T-shaped block, 6-screw, 7-nut, 8-upper plate, 9-rectangular groove, 10-upper clamping handle, 11-through hole I, 12-boss I, 13-lower clamping handle, 14-boss II, 15-through hole II and 16-rectangular notch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the scope of the present invention.
Example 1: as shown in fig. 1, the clamping device for the self-piercing riveting cross lapping test piece comprises an upper T-shaped block 1 and two lower auxiliary pressing plates 2 for fixing an upper plate 8, and a lower T-shaped block 5 and two upper auxiliary pressing plates 3 for fixing a lower plate 4.
As shown in fig. 2, the upper T-shaped block 1 comprises a rectangular panel, an upper rectangular clamping handle 10 is vertically fixed at the center of the upper surface of the rectangular panel, an outward convex boss i 12 is arranged on the lower surface of the rectangular panel along the axial direction, a plurality of through holes i 11 are formed in the rectangular panels on the two sides of the boss i 12, a rectangular groove 9 is formed in the middle of the boss i 12, the rectangular groove 9 is formed in the upper plate 8 of the test piece, and the upper plate is partially convex at the rivet after being connected with the lower plate 4, so that the rectangular groove 9 can prevent the test piece from interfering with a clamping device.
As shown in fig. 3, the lower T-shaped block 5 comprises a rectangular panel identical to the upper T-shaped block 1, a boss i 12 protruding outwards is arranged on the upper surface of the rectangular panel along the axial direction, a plurality of through holes are formed in the rectangular panel on the two sides of the boss i 12, a rectangular groove 9 is formed in the middle of the boss i 12, a lower clamping handle 13 is vertically fixed in the center of the lower surface of the rectangular panel, and the lower clamping handle 13 is perpendicular to the upper clamping handle 10.
As shown in fig. 4, the lower auxiliary pressing plate 2 comprises a panel and a boss ii 14 fixed on the panel, through holes ii 15 are formed on the panels on two sides of the boss ii 14, and the positions of the boss ii 14 and the through hole ii 15 on the lower auxiliary pressing plate 2 correspond to the boss i 12 and the through hole i 11 on the upper T-shaped block 1 respectively.
As shown in fig. 5, the upper auxiliary pressing plate 3 has the same structure as the lower auxiliary pressing plate 2, and includes a panel and a boss ii 14 fixed thereon, a through hole ii 15 is provided on the panel at both sides of the boss ii 14, the positions of the boss ii 14 and the through hole ii 15 on the upper auxiliary pressing plate 3 correspond to the boss i 12 and the through hole i 11 on the lower T-shaped block 5, respectively, and rectangular notches 16 are provided at both sides of one end of the panel of the upper auxiliary pressing plate 3.
Example 2: in this embodiment, 8 through holes i 11 which are axially and radially symmetrical are respectively formed in the upper T-shaped block 1 and the lower T-shaped block 5, 4 through holes ii 15 are respectively formed in corresponding positions of the lower auxiliary pressing plate 2 and the upper auxiliary pressing plate 3, and the length and the width of the boss i 12 are the same as those of the upper plate 8.
When the clamping of carrying out the test piece, it is good to be the cross overlap joint with hypoplastron 4 with upper plate 8 in the test piece earlier, then fix upper plate 8, specifically align the cooperation completely for the upper boss 12 that goes up T type piece 1 and upper surface of upper plate 8, the lower surface of 8 overlap joint region both sides of upper plate aligns the cooperation completely with boss II 14 of two supplementary pressure strips 2 down, screw 6 passes through-hole I11 and through-hole II 15, then locks through nut 7, the realization is to the fixed of test piece upper plate 8. When the lower plate 4 is fixed, the same mode is adopted, specifically, the upper boss 12 of the lower T-shaped block 5 is completely aligned and matched with the lower surface of the lower plate 4, the upper surfaces of two sides of the lap joint area of the lower plate 4 are completely aligned and matched with the boss II 14 of the upper auxiliary compression plate 3, the screw 6 penetrates through the through hole I11 and the through hole II 15, and then the screw is locked through the nut 7, so that the upper plate 8 of the test piece is fixed. After the cross-shaped lap joint test piece is completely fixed, as shown in fig. 1, the upper rectangular clamping handle 10 and the lower rectangular clamping handle 13 are on the same straight line, at the moment, the upper rectangular clamping handle 10 and the lower rectangular clamping handle 13 are respectively clamped by the upper chuck and the lower chuck of the material testing machine, and the next self-piercing riveting process can be carried out until the clamping of the test piece is completely finished.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a clamping device of cross overlap joint test piece is riveted from dashing which characterized in that: the clamping device comprises an upper T-shaped block (1) and two lower auxiliary pressing plates (2) for fixing an upper plate (8), and a lower T-shaped block (5) and two upper auxiliary pressing plates (3) for fixing a lower plate (4), wherein the upper T-shaped block (1) comprises a rectangular panel, an upper clamping handle (10) is vertically fixed at the center of the upper surface of the rectangular panel, a boss I (12) protruding outwards is arranged on the lower surface of the rectangular panel along the axial direction, a plurality of through holes I (11) are formed in the rectangular panel on two sides of the boss I (12), and a rectangular groove (9) is formed in the middle of the boss I (12);
the lower T-shaped block (5) comprises a rectangular panel which is the same as the upper T-shaped block (1), the upper surface of the rectangular panel is provided with a boss I (12) which protrudes outwards along the axial direction, the center of the lower surface of the rectangular panel is vertically fixed with a lower clamping handle (13), and the lower clamping handle (13) and the upper clamping handle (10) are vertical to each other;
the lower auxiliary pressing plate (2) comprises a panel and a boss II (14) fixed on the panel, through holes II (15) are formed in the panels on two sides of the boss II (14), and the positions of the boss II (14) and the through holes II (15) on the lower auxiliary pressing plate (2) correspond to the boss I (12) and the through hole I (11) on the upper T-shaped block (1) respectively;
the upper auxiliary pressing plate (3) and the lower auxiliary pressing plate (2) are identical in structure, and rectangular notches (16) are formed in two sides of one end of the panel of the upper auxiliary pressing plate (3).
2. The clamping device for the self-piercing riveting cross-shaped lap joint test piece according to claim 1, characterized in that: the length and the width of the boss I (12) are the same as those of the upper plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921626752.3U CN211576766U (en) | 2019-09-27 | 2019-09-27 | Clamping device for self-punching riveting cross-shaped lap joint test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921626752.3U CN211576766U (en) | 2019-09-27 | 2019-09-27 | Clamping device for self-punching riveting cross-shaped lap joint test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211576766U true CN211576766U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921626752.3U Expired - Fee Related CN211576766U (en) | 2019-09-27 | 2019-09-27 | Clamping device for self-punching riveting cross-shaped lap joint test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211576766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948033A (en) * | 2020-09-28 | 2020-11-17 | 东风汽车集团有限公司 | Cross tensile test fixture for automobile plate connection points |
-
2019
- 2019-09-27 CN CN201921626752.3U patent/CN211576766U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948033A (en) * | 2020-09-28 | 2020-11-17 | 东风汽车集团有限公司 | Cross tensile test fixture for automobile plate connection points |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210927 |