CN211954971U - Cross-shaped lapping sheet tensile test fixture - Google Patents
Cross-shaped lapping sheet tensile test fixture Download PDFInfo
- Publication number
- CN211954971U CN211954971U CN201922085028.0U CN201922085028U CN211954971U CN 211954971 U CN211954971 U CN 211954971U CN 201922085028 U CN201922085028 U CN 201922085028U CN 211954971 U CN211954971 U CN 211954971U
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- screw
- lower clamping
- sliding block
- round
- round hole
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- 238000009864 tensile test Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a sheet metal tensile test anchor clamps are taken to cross belongs to the sheet metal and connects technical field. The utility model discloses a fixture, long board, last exposed core, connecting rod, chuck, short slab, lower exposed core, arc slider, screw I, screw II, button head screw, rectangle slider, circular baffle and axle down. The stress of the structure in the engineering is complex, the stress of the joint is not constant, and the direction is not constant, so that the utility model simulates the engineering stress condition through the clamp; the clamping angle of the cross-shaped test piece is changed by contrasting the scale marks, so that the test flexibility is improved; the clamp is used for carrying out tensile test on a test piece, and the defect of the singleness of a laboratory mechanical experiment is overcome.
Description
Technical Field
The utility model relates to a sheet metal tensile test anchor clamps are taken to cross belongs to the sheet metal and connects technical field.
Background
Most of the thin plate materials are widely applied to engineering due to the characteristics of light weight and high strength, such as aircraft skins, vehicle bodies and various frame structures, and therefore, the research on the mechanical property of the joints for connecting the thin plate materials is necessary. At present, the connection technology for the thin plate parts mainly comprises bonding, riveting, welding and the like, the strength of the joints is generally high, so that when the thin plate parts are applied to small structures and sub-bearing structural parts, the situation that only a single joint is connected can occur, and the situation that the joint is subjected to torsional force needs to be considered for the stress situation of the single joint.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a sheet metal tensile test anchor clamps are taken to cross for solve above-mentioned problem.
The technical scheme of the utility model is that: a sheet metal tensile test anchor clamps is taken to cross, includes fixture, long board down, goes up exposed core, connecting rod, chuck, short slab, lower exposed core, arc slider, screw I, screw II, button head screw, rectangle slider, circular baffle and axle.
The lower clamping mechanism is provided with a lower clamping end, a groove I and a groove II, and scale marks are drawn on the lower clamping mechanism. Be equipped with the screw thread through-hole on the arc slider, screw thread through-hole and I cooperation of screw are equipped with the terminal surface on the arc slider, and the terminal surface is hugged closely to the side of long board, is drawn with the central line on the long board. The short plate and the long plate are in cross lap joint. The chuck is equipped with slot III and sawtooth surface I, and rectangle slider one side is equipped with sawtooth surface II, and the rectangle slider can slide in slot III. And a threaded through hole matched with the screw II is formed in the chuck, the two sides of the chuck are provided with cylindrical groups, threaded holes are formed in the cylindrical groups, and the round-head screws are matched with the threaded holes. Be equipped with round hole I and round hole II on the connecting rod, cylinder group and the cooperation of round hole II, the diameter of round hole II slightly is greater than the diameter of cylinder group to the guarantee connecting rod can be around cylinder group rotation. Go up the exposed core and be equipped with round hole III, axle and round hole I and the cooperation of round hole III, round hole I diameter slightly is greater than the diameter of axle, and the guarantee connecting rod can be around the rotation of axle, and circular baffle is installed at the axle both ends, the displacement of restriction connecting rod.
The upper clamping end and the lower clamping end are on the same horizontal plane.
The short plate can rotate in the inner circumference of the lower clamping mechanism, and the long plate just touches the inner wall of the outer circumference of the lower clamping mechanism.
The utility model has the advantages that: the complex stress condition of a single joint when failing can be analyzed, the analysis of the mechanical property of the joint in engineering application in a laboratory is perfected, and the clamp is suitable for common joints and has wide practicability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the lower clamping mechanism of the present invention;
FIG. 3 is a schematic view of the arc-shaped slider of the present invention;
fig. 4 is a schematic view of the upper clamping mechanism of the present invention;
fig. 5 is a schematic view of the connecting rod of the present invention;
FIG. 6 is a schematic view of the cylinder of the present invention;
FIG. 7 is a schematic diagram of the stress of the engineering structure in the failure process of the present invention;
in the figure: 1-lower clamping mechanism, 2-channel i, 3-channel ii, 4-scale, 5-long plate, 6-upper clamping end, 7-linkage, 8-chuck, 9-center line, 10-short plate, 11-lower clamping end, 12-arc slide block, 13-screw i, 14-end face, 15-screw ii, 16-round head screw, 17-rectangular slide block, 18-circular baffle, 19-shaft, 20-sawtooth surface i, 21-sawtooth surface ii, 22-channel iii, 23-round hole i, 24-round hole ii, 25-cylinder, 26-threaded hole, 27-round hole iii.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example 1: as shown in fig. 1-6, a cross lapping sheet tensile test fixture comprises a lower clamping mechanism 1, a long plate 5, an upper clamping end 6, a connecting rod 7, a chuck 8, a short plate 10, a lower clamping end 11, an arc-shaped sliding block 12, a screw i 13, a screw ii 15, a round head screw 16, a rectangular sliding block 17, a circular baffle 18 and a shaft 19.
The lower clamping mechanism 1 is welded with a lower clamping end 11, a groove I2 and a groove II 3 are milled, a scale mark 4 is drawn on the lower clamping mechanism 1, a threaded through hole is drilled on an arc-shaped sliding block 12 and matched with a screw I13, an end face 14 is arranged on the arc-shaped sliding block 12, the side face of a long plate 5 is tightly attached to the end face 14, a central line 9 is drawn on the long plate 5, a short plate 10 is in cross lap joint with the long plate 5, a chuck 8 is milled with a groove III 22 and a sawtooth face I20, a sawtooth face II 21 is milled on one side of a rectangular sliding block 17, the rectangular sliding block 17 can slide in the groove III 22, a threaded through hole matched with the screw II 15 is drilled on the chuck 8, cylindrical groups 25 are welded on two sides of the chuck 8, threaded holes 26 are drilled on the cylindrical groups 25, a round head screw 16 is matched with the threaded holes 26, round holes I23 and II 24 are drilled on a connecting rod 7, the round holes I23, the shaft 19 is matched with the round hole I23 and the round hole III 27, and the round baffles 18 are arranged at two ends of the shaft 19.
The upper clamping end 6 and the lower clamping end 11 are on the same horizontal plane.
The utility model discloses a theory of operation is:
the assembly process of the upper clamping mechanism is as follows:
firstly, cylinder 25 is welded on two sides of chuck 8, connecting rod 7 is matched with cylinder 25 through round hole II 24, round-head screw group 16 is rotated into threaded hole 26, connecting rod 7 can only be rotated, round hole III 27 on upper clamping end 6 and round hole I23 on connecting rod 7 are coincided, then shaft 19 is passed through round hole III 27 and round hole I23, upper clamping end 6 can slide along shaft 19 axial direction, round baffle 18 is welded on two ends of shaft 19, connecting rod 7 can only be rotated, screw II 15 is connected on the surface of chuck 8 through threaded through hole, rectangular sliding block 17 is placed into groove III 22, and the assembly of upper clamping mechanism is completed at the moment.
The test piece mounting process is as follows:
firstly, the short plate 10 and the long plate 5 are in cross lap joint, the arc-shaped slide block 12 is slid into the groove I2, the appearance of the lower clamping mechanism 1 is circular, the lower clamping mechanism 1 is provided with scales 4 which are symmetrical by taking the center of the circle as a symmetrical point, the central line 9 on the long plate 5 is aligned with the scales 4, the central line 9 is moved by a certain amount from the left side to the right side of the scale mark at the upper end of the graph 2, the central line 9 moves the same scales from the right side to the left side of the scale mark at the lower end of the graph 2 by comparing with the scales 4, so that the stress angle of a test piece can be adjusted, a mechanical experiment with different included angles is carried out, the screw 13 on the arc-shaped slide block 12 is rotated, the screw 13 is abutted against the long plate 5, the test piece is fixed, the upper end of the short plate 10 is placed into the groove III 22, the screw 15 is rotated, the screw 15 applies downward pressure to the, the upper clamping end 6 and the lower clamping end 11 are on the same horizontal plane, the upper clamping end and the lower clamping end are tightened by using a tensile-fatigue testing machine MTS, and the MTS machine is started to conduct tensile test.
The stress is often complicated when the structure is destroyed, and one of the conditions of stress destruction can be simulated by using the device, as shown in fig. 7, the joint part has shear force and torsional force simultaneously caused by gravity G, and the force of the gravity decomposition shear direction and the torsional direction in the destruction process is constantly changed.
The present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit and scope of the present invention by those skilled in the art.
Claims (2)
1. The utility model provides a sheet metal tensile test anchor clamps are taken to cross which characterized in that: the clamping device comprises a lower clamping mechanism (1), a long plate (5), an upper clamping end (6), a connecting rod (7), a chuck (8), a short plate (10), a lower clamping end (11), an arc-shaped sliding block (12), a screw I (13), a screw II (15), a round-head screw (16), a rectangular sliding block (17), a round baffle (18) and a shaft (19);
the lower clamping mechanism (1) is provided with a lower clamping end (11) and is provided with a groove I (2) and a groove II (3), scale marks (4) are drawn on the lower clamping mechanism (1), the arc-shaped sliding block (12) is provided with a threaded through hole which is matched with a screw I (13), the arc-shaped sliding block (12) is provided with an end face (14), the side face of the long plate (5) is tightly attached to the end face (14), the long plate (5) is provided with a central line (9), the short plate (10) is in cross lap joint with the long plate (5), the chuck (8) is provided with a groove III (22) and a sawtooth face I (20), one side of the rectangular sliding block (17) is provided with a sawtooth face II (21), the rectangular sliding block (17) can slide in the groove III (22), the chuck (8) is provided with a threaded through hole which is matched with the screw II (15), cylindrical groups (25) are installed on two sides of the chuck (8, round head screw (16) and screw hole (26) cooperation are equipped with round hole I (23) and round hole II (24) on connecting rod (7), and cylinder group (25) and round hole II (24) cooperation are gone up exposed core (6) and are equipped with round hole III (27), and axle (19) and round hole I (23) and round hole III (27) cooperation, circular baffle (18) are installed at axle (19) both ends.
2. The cross web tensile test fixture of claim 1, wherein: the upper clamping end (6) and the lower clamping end (11) are on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085028.0U CN211954971U (en) | 2019-11-28 | 2019-11-28 | Cross-shaped lapping sheet tensile test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085028.0U CN211954971U (en) | 2019-11-28 | 2019-11-28 | Cross-shaped lapping sheet tensile test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211954971U true CN211954971U (en) | 2020-11-17 |
Family
ID=73174923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922085028.0U Expired - Fee Related CN211954971U (en) | 2019-11-28 | 2019-11-28 | Cross-shaped lapping sheet tensile test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211954971U (en) |
-
2019
- 2019-11-28 CN CN201922085028.0U patent/CN211954971U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20201117 Termination date: 20211128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |