CN211576770U - Torsion clamp for tensile testing machine - Google Patents
Torsion clamp for tensile testing machine Download PDFInfo
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- CN211576770U CN211576770U CN201922089516.9U CN201922089516U CN211576770U CN 211576770 U CN211576770 U CN 211576770U CN 201922089516 U CN201922089516 U CN 201922089516U CN 211576770 U CN211576770 U CN 211576770U
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- rack
- circular
- buckle cover
- groove
- testing machine
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- 238000009864 tensile test Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000006378 damage Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a tensile test machine is with twisting fixture, including rack I, rack II, buckle closure I, buckle closure II and test piece fixing device, the one end of rack I is connected with down the exposed core, and the one end of rack II is connected with the exposed core, and buckle closure I is the same with II structures of buckle closure, comprises by a flat board and fix the curb plate in dull and stereotyped both sides, and buckle closure I and buckle closure II can align the cooperation and form a cavity box body, and rack I and rack II can be followed the both sides inner wall of cavity box body respectively and slide. The utility model can do torsion test of the test piece on the tensile testing machine by applying equal and reverse tensile force to the clamping end; the utility model discloses can make the test piece carry out many weeks rotation, improve experimental flexibility, can prevent to carry out the condition of excessive rotatory destruction tensile testing machine and anchor clamps because of the misoperation test piece simultaneously, improve experimental security.
Description
Technical Field
The utility model relates to a tensile test machine is with twisting reverse anchor clamps belongs to panel connection technology technical field.
Background
The plate is generally divided into a thin plate, a medium plate and a thick plate, and is widely applied in military affairs and life. Engineering considerations of process difficulties and costs are often the assembly of several sheets into a single unit by joining techniques, which is a significant advantage of modern manufacturing techniques, and thus requires the study of the strength of the joined joints.
The laboratory researches on the static strength of the joint mainly comprises a shear test, a peeling test and a torsion test, and when only a tensile testing machine is used in the laboratory, a clamp capable of performing the torsion test on the tensile testing machine is necessary in order to save cost.
Disclosure of Invention
The utility model provides a tensile test machine is with twisting fixture to realize doing the torsion test on tensile test machine, practice thrift the cost.
The technical scheme of the utility model is that: a torsion clamp for a tensile testing machine comprises a rack I1-I, a rack II 1-II, a buckle cover I2, a buckle cover II 5 and a test piece fixing device;
one end of the rack I1-1 is connected with a lower clamping end 3, one end of the rack II 1-2 is connected with an upper clamping end 4, the buckle cover I2 and the buckle cover II 5 are identical in structure and are composed of a flat plate and side plates fixed on two sides of the flat plate, the buckle cover I2 and the buckle cover II 5 can be aligned and matched to form a hollow box body, and the rack I1-1 and the rack II 1-2 can respectively slide along the inner walls of two sides of the hollow box body;
a circular groove I14 is milled in the center of the flat inner wall of the buckle cover I2, a circular groove II 8 and a rectangular groove 10 are milled in the center of the flat inner wall of the buckle cover II 5, and a rectangular groove central line 28 is axially drawn at one end of the rectangular groove 10;
the test piece fixing device comprises a circular shaft 20, one end of the circular shaft 20 is connected with a circular truncated cone, a circular groove III 22 is formed in the circular truncated cone, a group of through holes 21 are formed in the circular groove III 22 in the axial direction and used for limiting a lower plate 18 in the circular groove III 22, an upper plate 19 is in cross lap joint with the lower plate 18, a scribing line 27 is carved in the direction of the central axis of the outer wall of the circular truncated cone and the direction of the upper plate 19 in the same direction, a gear 24 is fixed on one side of the circular shaft 20, a rack I1-1 and a rack II 1-2 are respectively matched with the gear 24, the circular truncated cone can be placed in a circular groove II 8 and can rotate in the circular groove II, the upper plate 19 can stretch into a rectangular groove 10, and the other end of the circular shaft 20.
The utility model discloses a theory of operation: after the upper plate and the lower plate are well lapped and fixed through the test piece fixing device, the upper plate and the lower plate are placed into a space formed by the two buckling covers, and then the upper plate and the lower plate are pulled in the directions of the racks on the two sides to be matched with the gear on the time fixing device, so that the gear rotates, the gear drives the shaft connected with the gear to rotate, the lower plate on the shaft rotates along with the shaft, and the upper plate is different from the lower plate, so that torsion is generated between the upper plate and the lower plate.
The utility model has the advantages that:
1. the utility model discloses can twist reverse the test on tensile testing machine, practice thrift the cost.
2. The utility model discloses can make the test piece carry out many weeks rotation at tensile in-process, improve experimental universality on the one hand, prevent to destroy anchor clamps and tensile testing machine because of the improper messenger test piece is excessively rotatory on the one hand, improve experimental security.
Drawings
FIG. 1 is a schematic structural view of the utility model after a test piece is installed;
FIG. 2 is a schematic view of the buckle cover I of the present invention;
FIG. 3 is a schematic view of the buckle cover II of the present invention;
FIG. 4 is a schematic view of the shaft of the present invention;
fig. 5 is a schematic view of the gear of the present invention;
fig. 6 is a schematic view of the bearing of the present invention;
the reference numbers in the figures are: 1-1-rack i, 1-2-rack ii, 2-snap cap i, 3-lower clamping end, 4-upper clamping end, 5-snap cap ii, 6-bolt, 7-threaded hole ii, 8-round groove ii, 9-groove ii, 10-rectangular groove, 11-rectangular block group ii, 12 threaded hole i, 13-groove i, 14-round groove i, 15-rectangular block group i, 16-key, 17-screw, 18-lower plate, 19-upper plate, 20-round shaft, 21-through hole, 22-round groove iii, 23-hole, 24-gear, 25-big bearing, 26-small bearing, 27-scribe line, 28-rectangular groove center line.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Example 1: as shown in fig. 1-4, a torsion clamp for a tensile testing machine comprises a rack I1-I, a rack II 1-II, a buckle cover I2, a buckle cover II 5 and a test piece fixing device;
one end of the rack I1-1 is connected with a lower clamping end 3, one end of the rack II 1-2 is connected with an upper clamping end 4, the upper clamping end 4 and the lower clamping end 3 are in the same vertical plane, the lower clamping end 3 and the upper clamping end 4 are respectively clamped by a chuck of a tensile testing machine and apply equal and opposite tensile force, the buckle cover I2 and the buckle cover II 5 are identical in structure and are respectively composed of a flat plate and side plates fixed on two sides of the flat plate, the buckle cover I2 and the buckle cover II 5 can be aligned and matched to form a hollow box body, and the rack I1-1 and the rack II 1-2 can respectively slide along the inner walls on two sides of the hollow box body;
a circular groove I14 is milled in the center of the flat inner wall of the buckle cover I2, a circular groove II 8 and a rectangular groove 10 are milled in the center of the flat inner wall of the buckle cover II 5, and a rectangular groove central line 28 is axially drawn at one end of the rectangular groove 10;
the test piece fixing device comprises a circular shaft 20, one end of the circular shaft 20 is connected with a circular truncated cone, a circular groove III 22 is formed in the circular truncated cone, a group of through holes 21 are formed in the circular groove III 22 in the axial direction and used for limiting a lower plate 18 in the circular groove III 22, an upper plate 19 is in cross lap joint with the lower plate 18, a scribing line 27 is carved in the direction of the central axis of the outer wall of the circular truncated cone and the direction of the upper plate 19 in the same direction, a gear 24 is fixed on one side of the circular shaft 20, a rack I1-1 and a rack II 1-2 are respectively matched with the gear 24, the circular truncated cone can be placed in a circular groove II 8 and can rotate in the circular groove II, the upper plate 19 can stretch into a rectangular groove 10, the width of the rectangular groove 10 is matched with the upper plate 19, the length is not limited, the groove depth is larger than the thickness of the upper plate 19.
Example 2: in this embodiment, as shown in fig. 2-3, rectangular block groups i 15 are welded on two sides of the fastening cover i 2, a threaded hole i 12 is drilled on the rectangular block group i 15, rectangular block groups ii 11 are welded on two sides of the fastening cover ii 5, a threaded hole ii 7 is drilled on the rectangular block group ii 11, and the fastening cover i 2 and the fastening cover ii 5 are aligned and fixed by the bolt 6 through the threaded hole i 12 and the threaded hole ii 7.
The inner wall of the joint of the flat plate of the buckle cover I2 and the two side plates is provided with a groove I13, the inner wall of the joint of the flat plate of the buckle cover II 5 and the two side plates is provided with a groove II 9, when the buckle cover I2 and the buckle cover II 5 are aligned, the groove I13 and the groove II 9 on the two sides are respectively aligned, and the rack I1-1 and the rack II 1-2 respectively slide in the groove I13 and the groove II 9 on the two sides.
As shown in fig. 4-5, a protruding key 16 is fixed on the side of the circular shaft 20, a hole 23 is opened in the center of the gear 24, and the hole 23 cooperates with the key 16 to fix the gear 24 on the circular shaft 20. A threaded through hole is formed below the circular table of the circular shaft 20, and the threaded through hole is matched with the screw 17 to fix the position of the lower plate 18.
When the device is used for torsion experiments, firstly, the lower plate 18 and the upper plate 19 are in cross lap joint through a connection technology, one end of the lower plate 18 forming a test piece is firstly placed in the through hole 21 to move until the other end of the lower plate 18 can be placed in the circular groove 22, at the moment, the lower plate 18 is translated to enable two ends to be in the through hole 21, the shaft 20 is placed in the circular groove II 8 to enable the marking line 27 to be aligned with the central line 28 of the rectangular groove, at the moment, the test piece is finely adjusted through the through hole 21 to enable the upper plate 19 of the test piece to be overlapped with the rectangular groove 10, at the moment, the part of the upper plate 19, which exceeds the circular table of the shaft 20, enters the rectangular groove 10, the large bearing 25 shown in figure 6 is placed in the circular groove II 8, the outer ring of the large bearing is matched with the circular groove II 8, the upper plate is matched with the circular table inner ring of the shaft 20, at the moment, the screw 17 is, the rack I1-1 and the rack II 1-2 are placed in the groove II 9 and can be matched with the gear 24, the small bearing 26 shown in figure 6 is placed in the circular groove I14, the outer ring is matched with the circular groove I14, the inner ring is matched with the small end face of the shaft 20, the buckle cover I2 and the buckle cover II 5 are tightly attached and connected by using the bolt 6, at the moment, the rack I1-1 and the rack II 1-2 can slide in a new groove formed by the groove II 9 and the groove I13, by applying equal and opposite forces with the same action line to the upper clamping end 4 and the lower clamping end 3, the gear 24 rotates around the central line of the circular groove II 8 during stretching, the key 16 drives the shaft 20 to rotate around the central line of the circular groove II 8, the upper plate 19 is limited by the rectangular groove 10 to move, the central line of the lapping surface of the test piece is overlapped with the central line of the circular groove II 8, and the lower plate 18 rotates around the central line of the lapping surface under the rotation of the shaft 20 to realize torsion.
While the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a tensile test machine is with twising reverse anchor clamps which characterized in that: the device comprises a rack I (1-I), a rack II (1-II), a buckle cover I (2), a buckle cover II (5) and a test piece fixing device;
one end of the rack I (1-1) is connected with a lower clamping end (3), one end of the rack II (1-2) is connected with an upper clamping end (4), the buckle cover I (2) and the buckle cover II (5) are identical in structure and are respectively composed of a flat plate and side plates fixed on two sides of the flat plate, the buckle cover I (2) and the buckle cover II (5) can be aligned and matched to form a hollow box body, and the rack I (1-1) and the rack II (1-2) can respectively slide along inner walls of two sides of the hollow box body;
a circular groove I (14) is milled in the center of the inner wall of the flat plate of the buckle cover I (2), a circular groove II (8) and a rectangular groove (10) are milled in the center of the inner wall of the flat plate of the buckle cover II (5), and a central line (28) of the rectangular groove is axially drawn at one end of the rectangular groove (10);
the test piece fixing device comprises a circular shaft (20), one end of the circular shaft (20) is connected with a circular table, a circular groove III (22) is formed in the circular table, a group of through holes (21) are formed in the circular groove III (22) in the axial direction, the lower plate (18) is limited in the circular groove III (22), an upper plate (19) is in cross lap joint with the lower plate (18), a scribing line (27) is carved in the outer wall of the circular table and the upper plate (19) in the same direction of the central axis direction, a gear (24) is fixed on one side of the circular shaft (20), a rack I (1-1) and a rack II (1-2) are respectively matched with the gear (24), the circular table can be placed into the circular groove II (8) and can rotate in the circular groove, the upper plate (19) can stretch into the rectangular groove (10), and the other end of the circular shaft (20) can be placed into the circular groove I (14) and can rotate.
2. The torsion jig for a tensile testing machine according to claim 1, characterized in that: the both sides of buckle closure I (2) have welded rectangle piece group I (15), bore threaded hole I (12) on rectangle piece group I (15), and rectangular piece group II (11) have welded rectangle piece group II (5) both sides, bore threaded hole II (7) on rectangle piece group II (11), and bolt (6) are fixed with buckle closure I (2) and buckle closure II (5) alignment through threaded hole I (12) and threaded hole II (7).
3. The torsion jig for a tensile testing machine according to claim 1 or 2, characterized in that: the inner wall of the joint of the flat plate of the buckle cover I (2) and the two side plates is provided with a groove I (13), the inner wall of the joint of the flat plate of the buckle cover II (5) and the two side plates is provided with a groove II (9), when the buckle cover I (2) aligns with the buckle cover II (5), the grooves I (13) and the grooves II (9) on the two sides align respectively, and the rack I (1-1) and the rack II (1-2) slide in the grooves I (13) and the grooves II (9) on the two sides respectively.
4. The torsion jig for a tensile testing machine according to claim 1, characterized in that: a protruding key (16) is fixed on the side face of the circular shaft (20), a hole (23) is formed in the center of the gear (24), and the hole (23) is matched with the key (16) to fix the gear (24) on the circular shaft (20).
5. The torsion jig for a tensile testing machine according to claim 1, characterized in that: the upper clamping end (4) and the lower clamping end (3) are in the same vertical plane.
6. The torsion jig for a tensile testing machine according to claim 1, characterized in that: a threaded through hole is formed below the circular truncated cone and is matched with a screw (17) to fix the position of the lower plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089516.9U CN211576770U (en) | 2019-11-28 | 2019-11-28 | Torsion clamp for tensile testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089516.9U CN211576770U (en) | 2019-11-28 | 2019-11-28 | Torsion clamp for tensile testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211576770U true CN211576770U (en) | 2020-09-25 |
Family
ID=72533764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089516.9U Expired - Fee Related CN211576770U (en) | 2019-11-28 | 2019-11-28 | Torsion clamp for tensile testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211576770U (en) |
-
2019
- 2019-11-28 CN CN201922089516.9U patent/CN211576770U/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: 20200925 Termination date: 20211128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |