CN211453140U - Clamping device for tensile test of trapezoidal steel wire - Google Patents
Clamping device for tensile test of trapezoidal steel wire Download PDFInfo
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- CN211453140U CN211453140U CN202020156180.3U CN202020156180U CN211453140U CN 211453140 U CN211453140 U CN 211453140U CN 202020156180 U CN202020156180 U CN 202020156180U CN 211453140 U CN211453140 U CN 211453140U
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Abstract
The utility model discloses a trapezoidal steel wire carries out tensile test's clamping device belongs to testing arrangement's technical field. The device comprises a chuck base and a plurality of sets of wedge-shaped clamping blocks which are selected and can be fixedly embedded with the chuck base; the number of each set of wedge-shaped clamping blocks is four, every two sets of wedge-shaped clamping blocks are symmetrically matched for use, the horizontal inclination angle of the inner side surfaces of the wedge-shaped clamping blocks is the same as the side degree of the trapezoidal steel wire, and anti-skid lines are processed on the inner side surfaces of the wedge-shaped clamping blocks. The utility model improves the stress mode of the trapezoidal steel wire at the jaw position by changing the shape of the clamping block, avoids the fracture of the trapezoidal steel wire at the clamp, ensures the smooth proceeding of the trapezoidal steel wire tension test, and improves the reliability and accuracy of the test result; the utility model has the advantages of easy operation, flexible use and strong universality.
Description
Technical Field
The utility model belongs to the technical field of testing arrangement, more specifically say and relate to a clamping device that trapezoidal steel wire carries out tensile test.
Background
The rectangular spring is manufactured by using a trapezoidal steel wire (as shown in fig. 1) with a nearly trapezoidal cross section, that is, two sides of the trapezoidal steel wire are included, in other words, the two sides are not parallel. The clamping block of the existing steel wire tensile test clamp mainly has the following two structures: one is a V-shaped jaw (as shown in fig. 2) suitable for round steel wires; the other is a flat clamping block (as shown in fig. 3) which is suitable for the plate. However, the clamping blocks of the two structures have no angle change in the horizontal direction (i.e. in the direction perpendicular to the stretching direction), if the clamping blocks are directly used for the tensile test of the trapezoidal steel wire, the contact part of the trapezoidal steel wire and the clamping blocks cannot be stressed uniformly due to the fact that the clamping blocks cannot be completely fit with the trapezoidal steel wire, and the jaw is easy to break, so that the smooth performance of the tensile test of the trapezoidal steel wire is influenced.
Disclosure of Invention
The utility model aims at providing a clamping device for tensile test of trapezoidal steel wire aiming at the shortcomings existing in the prior art. The utility model improves the stress mode of the trapezoidal steel wire at the jaw position by changing the shape of the clamping block, avoids the fracture of the trapezoidal steel wire at the clamp, ensures the smooth proceeding of the trapezoidal steel wire tension test, and greatly improves the reliability and the accuracy of the test result; simultaneously the utility model discloses a change the clamp splice of different angles and realize carrying out tensile test to the trapezoidal steel wire of multiple angle simple fast ground, have easy operation, use advantage nimble, that the commonality is strong.
The purpose of the utility model can be realized by the following technical measures:
the clamping device for the tensile test of the trapezoidal steel wire comprises a chuck base and a plurality of sets of wedge-shaped clamping blocks which are selected for standby and can be fixedly embedded with the chuck base; the quantity of every set of wedge clamp splice is four, two bisymmetry pairs and uses, the angle at wedge clamp splice medial surface horizontal inclination is the same, and the same with the side number of degrees of trapezoidal steel wire (wedge clamp splice can agree with trapezoidal steel wire completely like this, guarantee the balanced atress of contact segment, the fracture of trapezoidal steel wire in anchor clamps department has been avoided, guarantee going on smoothly of trapezoidal steel wire tensile test, the reliability and the accuracy of test result have been improved greatly), all process anti-skidding line (increase frictional force, prevent that clamping part from skidding) on the wedge clamp splice medial surface.
In the utility model, the cross section of the wedge-shaped clamping block is in a trapezoid shape with a small upper part and a big lower part; an embedded groove I for clamping and embedding the wedge-shaped clamping block is formed in the chuck base, the embedded groove I is a trapezoidal through groove with a small upper part and a large lower part, and the degree of the inclined waist surface of the trapezoidal through groove is the same as the angle of the vertical inclination angle of the outer side surface of the corresponding wedge-shaped clamping block (the wedge-shaped clamping block is convenient to replace and clamp quickly and stably); grooves for embedding the base are formed in the lower parts of the inner side surfaces of the wedge-shaped clamping blocks; the outer edge of the embedding groove I is connected with a fixing plate for pressing the wedge-shaped clamping block through a bolt (the wedge-shaped clamping block is quickly fastened on the chuck base by the fixing plate).
In the utility model, the outer side surface of the wedge-shaped clamping block is a vertical surface, and the wedge-shaped clamping block is embedded and fixed on the chuck base through the sliding wedge block and the fixed wedge block which are matched in bevel degree; a cuboid through groove for mounting a fixed wedge block is formed in the chuck base; an embedding groove II for embedding the wedge-shaped clamping block in a clamping manner is formed in the sliding wedge block, and the embedding groove II is a through groove (convenient for quickly and stably replacing and clamping the wedge-shaped clamping block) with the cross section shape matched with the shape of the wedge-shaped clamping block; the end face of the sliding wedge block is tightly fixed on the fixed wedge block through a fixing plate and a bolt (the wedge-shaped clamping block is quickly fastened on the fixed wedge block through the fixing plate).
The utility model discloses in every the angle scope at wedge clamp splice medial surface horizontal inclination is 1 ~ 14, and two symmetry wedge clamp splice contained angle scopes are 2 ~ 28 (single wedge clamp splice includes 14 kinds of angles, respectively 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 10 °, 11 °, 12 °, 13 °, 14 °, when two wedge clamp splices cooperate the use, the contained angle corresponds respectively to be 2 to between 28, totally 27 kinds of angles, the trapezoidal steel wire that can satisfy different specifications carries out tensile test).
The working principle of the utility model is as follows:
the utility model discloses in four wedge clamp splice that design for one set, two bisymmetry pairs and inlay the dress in the inlay inslot of chuck base, because the angle at wedge clamp splice medial surface horizontal inclination is the same with trapezoidal steel wire's side number of degrees, the wedge clamp splice can agree with trapezoidal steel wire completely like this, guarantees the balanced atress of contact part, has avoided the fracture of trapezoidal steel wire in anchor clamps department, guarantees going on smoothly of trapezoidal steel wire tensile test, has improved the reliability and the accuracy of test result greatly. Meanwhile, the shape of the outer side surface of the wedge-shaped clamping block is matched with the shape of the embedded groove of the chuck base, so that the wedge-shaped clamping block with different angles can be replaced and clamped quickly and stably, the tensile test on the trapezoidal steel wires with various angles can be realized simply and quickly, and the clamp has the advantages of simplicity in operation, flexibility in use and high universality.
The utility model has the advantages of as follows:
the utility model improves the stress mode of the trapezoidal steel wire at the jaw position by changing the shape of the clamping block, avoids the fracture of the trapezoidal steel wire at the clamp, ensures the smooth proceeding of the trapezoidal steel wire tension test, and greatly improves the reliability and the accuracy of the test result; simultaneously the utility model discloses a change the clamp splice of different angles and realize carrying out tensile test to the trapezoidal steel wire of multiple angle simple fast ground, have easy operation, use advantage nimble, that the commonality is strong.
Drawings
Fig. 1 is a schematic cross-sectional view of a trapezoidal wire.
Fig. 2 is a structural schematic diagram of a group of conventional V-shaped jaw steel wire tensile test clamps.
Fig. 3 is a schematic structural view of a group of conventional flat clamping block steel wire tension test clamps.
Fig. 4 is a front view of the first embodiment of the present invention.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a front view of a set of wedge-shaped clamping blocks according to a first embodiment of the present invention.
Fig. 7 is a top view of fig. 6.
Fig. 8 is a front view of the structure of the second embodiment of the present invention.
Fig. 9 is a top view of fig. 8.
Fig. 10 is a front view of a set of wedge-shaped clamping blocks according to a second embodiment of the present invention.
Fig. 11 is a top view of fig. 10.
The sequence numbers in the figures illustrate: 1. the clamping head comprises a clamping head base 1-1, an embedded groove I, an embedded groove 1-2, a cuboid through groove 2, a wedge-shaped clamping block 2-1, anti-skid lines 2-2, a groove 3, a fixing plate 4, a bolt 5, a base 6, a sliding wedge block 6-1, an embedded groove II, an embedded groove 7, a fixing wedge block, a wedge-shaped clamping block inner side surface horizontal inclination angle, b, a wedge-shaped clamping block outer side surface vertical inclination angle, c and two symmetrical wedge-shaped clamping block included angles.
Detailed Description
The utility model is further described with the following figures:
example one
As shown in fig. 4 to 7, the clamping device for the tensile test of the trapezoidal steel wire of the present invention comprises a chuck base 1 and a plurality of sets of wedge-shaped clamping blocks 2 which are selected for use and can be fixedly embedded in the chuck base 1; every set of wedge clamp splice 2's quantity is four, two bisymmetry pairs use, wedge clamp splice medial surface horizontal inclination a's angle is the same, and with the side number of degrees of trapezoidal steel wire the same (wedge clamp splice 2 can agree with trapezoidal steel wire completely like this, guarantee the balanced atress of contact segment, avoided the fracture of trapezoidal steel wire in anchor clamps department, guarantee going on smoothly of trapezoidal steel wire tensile test, improved the reliability and the accuracy of test result greatly), all process on wedge clamp splice medial surface and have anti-skidding line 2-1 (increase frictional force, prevent that clamping segment from skidding).
In the utility model, the cross section of the wedge-shaped clamping block 2 is in a trapezoid shape with a small upper part and a big lower part; an embedded groove I1-1 for clamping and embedding the wedge-shaped clamping block is formed in the chuck base 1, the embedded groove I1-1 is a trapezoidal through groove with a small upper part and a large lower part, and the degree of the inclined waist surface of the trapezoidal through groove is the same as the angle of the vertical inclination angle b of the outer side surface of the corresponding wedge-shaped clamping block (the wedge-shaped clamping block 2 is convenient to replace and clamp quickly and stably); the lower parts of the inner side surfaces of the wedge-shaped clamping blocks 2 are provided with grooves 2-2 for embedding bases 5; the outer edge of the embedding groove I1-1 is connected with a fixing plate 3 for pressing the wedge-shaped clamping block 2 through a bolt 4 (the wedge-shaped clamping block 2 is quickly fastened on the chuck base 1 through the fixing plate 3).
The utility model discloses in every the angle scope of wedge clamp splice medial surface horizontal inclination a is 1 ~ 14, and two symmetry wedge clamp splice contained angle c scopes are 2 ~ 28 (single wedge clamp splice includes 14 kinds of angles, respectively 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, when two wedge clamp splice cooperations use, the contained angle corresponds respectively to be 2 between to 28, totally 27 kinds of angles, the trapezoidal steel wire that can satisfy different specifications carries out the tensile test).
Example two
As shown in fig. 8 to 11, the second embodiment is different from the first embodiment in that: in the second embodiment, the outer side surface of the wedge-shaped clamping block 2 is a vertical surface, and the wedge-shaped clamping block 2 is fixedly embedded on the chuck base 1 through a sliding wedge 6 and a fixed wedge 7 which are matched in bevel degree; a cuboid through groove 1-2 for mounting a fixed wedge 7 is formed in the chuck base 1; an embedded groove II 6-1 for clamping and embedding the wedge-shaped clamping block is formed in the sliding wedge block 6, and the embedded groove II 6-1 is a through groove (convenient for quickly and stably replacing and clamping the wedge-shaped clamping block 2) with the cross section shape matched with the shape of the wedge-shaped clamping block; the end face of the slide wedge 6 is fastened to the fixed wedge 7 by the fixed plate 3 and the bolt 4 (the wedge holder 2 is quickly fastened to the fixed wedge 7 by the fixed plate 3).
The utility model discloses a concrete in service behavior as follows:
first, assemble the utility model according to the above-mentioned structural description: namely, four wedge-shaped clamping blocks 2 with matched angles are selected according to the cross section requirements of a specific trapezoidal steel wire, the four wedge-shaped clamping blocks 2 are clamped and embedded in an embedded groove 1-1 of a chuck base 1 (embodiment one) or embedded in an embedded groove II 6-1 of a sliding wedge 6 (embodiment two), then the corresponding fixing plate 3 is buckled and covered on the end face of the wedge-shaped clamping block 2 (embodiment one) or the end face of the sliding wedge 6 (embodiment one), and the bolt 4 is screwed for fastening. Then, the trapezoidal steel wire passes through the direction perpendicular to the cross section of the wedge-shaped clamping block 2, namely the inner side surface of the wedge-shaped clamping block 2 is completely matched with the trapezoidal steel wire, so that the balanced stress of a contact part can be ensured, the fracture of the trapezoidal steel wire at a clamp is avoided, the smooth proceeding of a tensile test of the trapezoidal steel wire is ensured, and the reliability and the accuracy of a test result are greatly improved.
Claims (4)
1. The utility model provides a trapezoidal steel wire carries out tensile test's clamping device which characterized in that: the clamp comprises a chuck base (1) and a plurality of sets of wedge-shaped clamping blocks (2) which are selected and can be fixedly embedded with the chuck base (1); the number of each set of wedge-shaped clamping blocks (2) is four, every two sets of wedge-shaped clamping blocks are symmetrically matched for use, the horizontal inclination angles (a) of the inner side surfaces of the wedge-shaped clamping blocks are the same as the number of degrees of the side surfaces of the trapezoidal steel wires, and anti-skid grains (2-1) are processed on the inner side.
2. The clamping device for the tensile test of the trapezoidal steel wire according to claim 1, wherein: the cross section of the wedge-shaped clamping block (2) is a trapezoid with a small upper part and a big lower part; an embedded groove I (1-1) for clamping and embedding the wedge-shaped clamping block is formed in the chuck base (1), the embedded groove I (1-1) is a trapezoidal through groove with a small upper part and a large lower part, and the degree of the inclined waist surface of the trapezoidal through groove is the same as the angle of the vertical inclination angle (b) of the outer side surface of the corresponding wedge-shaped clamping block; grooves (2-2) for embedding the base (5) are formed in the lower parts of the inner side surfaces of the wedge-shaped clamping blocks (2); the outer edge of the embedding groove I (1-1) is connected with a fixing plate (3) for pressing the wedge-shaped clamping block (2) through a bolt (4).
3. The clamping device for the tensile test of the trapezoidal steel wire according to claim 1, wherein: the outer side surface of the wedge-shaped clamping block (2) is a vertical surface, and the wedge-shaped clamping block (2) is embedded and fixed on the chuck base (1) through a sliding wedge block (6) and a fixed wedge block (7) which are matched in bevel degree; a cuboid through groove (1-2) for mounting a fixed wedge block (7) is formed in the chuck base (1); an embedded groove II (6-1) for clamping and embedding the wedge-shaped clamping block is formed in the sliding wedge block (6), and the embedded groove II (6-1) is a through groove with the cross section shape matched with the shape of the wedge-shaped clamping block; the end face of the sliding wedge block (6) is tightly fixed on the fixed wedge block (7) through a fixed plate (3) and a bolt (4).
4. The clamping device for the tensile test of the trapezoidal steel wire according to claim 1, wherein: the angle range of the horizontal inclination angle (a) of the inner side surface of each wedge-shaped clamping block is 1-14 degrees, and the included angle (c) of the two symmetrical wedge-shaped clamping blocks is 2-28 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020156180.3U CN211453140U (en) | 2020-02-09 | 2020-02-09 | Clamping device for tensile test of trapezoidal steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020156180.3U CN211453140U (en) | 2020-02-09 | 2020-02-09 | Clamping device for tensile test of trapezoidal steel wire |
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| CN211453140U true CN211453140U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020156180.3U Active CN211453140U (en) | 2020-02-09 | 2020-02-09 | Clamping device for tensile test of trapezoidal steel wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686660A (en) * | 2021-08-27 | 2021-11-23 | 中钢集团郑州金属制品研究院股份有限公司 | Steel wire rope clamping device and method for pouring head |
| CN118090433A (en) * | 2024-04-25 | 2024-05-28 | 宝鸡启航金属制品有限公司 | Titanium metal tensile detection device |
-
2020
- 2020-02-09 CN CN202020156180.3U patent/CN211453140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686660A (en) * | 2021-08-27 | 2021-11-23 | 中钢集团郑州金属制品研究院股份有限公司 | Steel wire rope clamping device and method for pouring head |
| CN118090433A (en) * | 2024-04-25 | 2024-05-28 | 宝鸡启航金属制品有限公司 | Titanium metal tensile detection device |
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Address after: No.26, Huahua Road, high tech Development Zone, Zhengzhou, Henan Province, 450001 Patentee after: Sinosteel Zhengzhou metal products Research Institute Co.,Ltd. Address before: No.26, Huahua Road, high tech Development Zone, Zhengzhou, Henan Province, 450001 Patentee before: SINOSTEEL ZHENGZHOU RESEARCH INSTITUTE OF STEEL WIRE & STEEL PRODUCTS Co.,Ltd. |