CN217384967U - Tensile testing machine's test piece fixture - Google Patents
Tensile testing machine's test piece fixture Download PDFInfo
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- CN217384967U CN217384967U CN202220792232.5U CN202220792232U CN217384967U CN 217384967 U CN217384967 U CN 217384967U CN 202220792232 U CN202220792232 U CN 202220792232U CN 217384967 U CN217384967 U CN 217384967U
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Abstract
The utility model provides a test piece clamping mechanism of tensile testing machine, by the fixed cylinder and the connecting cylinder constitutes, the fixed cylinder bottom is equipped with the reinforcing bar groove, the medial surface in reinforcing bar groove is equipped with a plurality of board grooves, movable mounting has the grip block in the board groove, the board groove is kept away from one side in reinforcing bar groove and is equipped with the screw, installs the threaded rod in the screw, the end of threaded rod is fixed with the adjusting cap that is used for rotatory threaded rod; one side of the clamping plate close to the center of the reinforcing steel bar groove is provided with a clamping groove for clamping the reinforcing steel bar, spring sleeves are fixed on the front side and the rear side of the clamping plate, and springs are fixed between the two spring sleeves of the two opposite clamping plates. Before carrying out tensile test, put into two reinforcing bar inslots that add the mechanism with the upper and lower both ends of reinforcing bar respectively, utilize the rotatory cap of adjusting of sleeve instrument for the threaded rod promotes the grip block and grips the reinforcing bar, and the double-layered groove and the reinforcing bar laminating of grip block stably grip the reinforcing bar. The clamping mechanism is convenient and quick to fix the steel bars, has a good clamping effect on the steel bars, and has good practicability.
Description
Technical Field
The utility model relates to engineering detection area, in particular to tensile test machine's test piece fixture.
Background
Tensile test refers to a test method for measuring the properties of a material under an axial tensile load. The data from the tensile test can be used to determine the elastic limit, elongation, elastic modulus, upper case limit, area reduction salt content, tensile strength, yield point, yield strength, and other tensile property indicators for the material.
Reinforcing steel bars are used as important materials in engineering construction, certain strength indexes and plasticity indexes need to be met, and a tensile testing machine is generally used for carrying out tensile testing on the reinforcing steel bars. The clamping face of the clamping mechanism of the conventional tensile testing machine is a plane, the contact area between the clamping face and the steel bar is small when the steel bar is clamped, the clamping effect is poor, the steel bar is easy to fall off from the clamping mechanism in the stretching process, and the tensile test is influenced.
Disclosure of Invention
For solving the shortcoming of the prior art, the utility model provides a tensile testing machine's test piece fixture.
The utility model provides a technical scheme is: a test piece clamping mechanism of a tensile testing machine comprises a clamping piece and a connecting cylinder, wherein the connecting cylinder is fixed at the top end of the clamping piece; the clamping piece consists of a fixed cylinder, a clamping plate, a threaded rod and an adjusting cap; a reinforcing steel bar groove is formed in the center of the lower surface of the fixed cylinder, a plurality of opposite plate grooves are formed in the side wall of the reinforcing steel bar groove from top to bottom, and clamping plates are movably mounted in the plate grooves; a screw hole which horizontally penetrates through the side wall of the fixed cylinder is formed in one side, away from the steel bar groove, of the plate groove, and a threaded rod is installed in the screw hole; an adjusting cap is fixed at one end of the threaded rod, which is far away from the clamping plate; spring sleeves are fixed on the front side and the rear side of each clamping plate, and springs are fixedly connected between two opposite spring sleeves on the two clamping plates with the same height; one side of the upper surface of the clamping plate, which is close to the reinforcing steel bar groove, is provided with a semicircular notch-shaped clamping groove.
The utility model discloses a test piece clamping mechanism of tensile testing machine, by the fixed cylinder and the connecting cylinder constitute, the fixed cylinder bottom is equipped with the reinforcing bar groove, the medial surface of reinforcing bar groove is equipped with a plurality of grooves, movable mounting has the grip block in the groove, the groove is kept away from one side of reinforcing bar groove and is equipped with the screw, install the threaded rod in the screw, the end of threaded rod is fixed with the adjusting cap that is used for rotatory threaded rod; one side of the clamping plate close to the center of the reinforcing steel bar groove is provided with a clamping groove for clamping the reinforcing steel bar, spring sleeves are fixed on the front side and the rear side of the clamping plate, and springs are fixed between the two spring sleeves of the two opposite clamping plates. Before carrying out tensile test, put into two reinforcing bar inslots that add the mechanism with the upper and lower both ends of reinforcing bar respectively, utilize the rotatory cap of adjusting of sleeve instrument for the threaded rod promotes the grip block and grips the reinforcing bar, and the double-layered groove and the reinforcing bar laminating of grip block stably grip the reinforcing bar. The clamping mechanism is convenient and quick for fixing the steel bar, has good clamping effect on the steel bar, and has good practicability. Specifically, the utility model discloses a tensile test machine's test piece fixture, including holder and connecting cylinder, the connecting cylinder is fixed in the top of holder, and the connecting cylinder is used for being connected with tensile test machine's pull rod. The clamping piece consists of a fixed cylinder, a clamping plate, a threaded rod and an adjusting cap. The fixed cylinder is cuboid, and the lower surface center department of fixed cylinder is equipped with the reinforcing bar groove of rectangle for the installation reinforcing bar that awaits measuring. The side wall of the reinforcing steel bar groove is provided with a plurality of opposite rectangular plate grooves from top to bottom, a clamping plate is movably arranged in the plate grooves, and the clamping plate can move left and right along the plate grooves. A screw hole horizontally penetrating to the side wall of the fixed cylinder is formed in one side, away from the steel bar groove, of the plate groove, and a threaded rod is installed in the screw hole; the one end that the grip block was kept away from to the threaded rod is fixed with the adjusting cap, utilizes the sleeve instrument to twist and moves the adjusting cap and can rotate the threaded rod, makes the threaded rod remove about the screw, promotes the grip block and grasps the reinforcing bar that awaits measuring or loosen the grip block. Spring sleeves are fixed on the front side and the rear side of each clamping plate, springs are fixedly connected between two opposite spring sleeves on the two clamping plates with the same height, and when the clamping plates are moved in the direction away from the reinforcing steel bar groove by threads to loosen the clamping plates, the springs can push the two clamping plates to move in the direction away from the reinforcing steel bar groove to loosen the clamped reinforcing steel bar to be detected. One side of the upper surface of the clamping plate, which is close to the reinforcing steel bar groove, is provided with a semicircular notch-shaped clamping groove for clamping the reinforcing steel bar to be tested. Semicircular clamp groove can increase with the area of contact of the reinforcing bar that awaits measuring, improves the stability of centre gripping.
Preferably, two clamping plates in two opposite plate grooves form a group, and the clamping groove radiuses of a plurality of groups of clamping plates in the reinforcing steel bar grooves are different.
Preferably, the side wall of the clamping groove of the clamping plate is provided with anti-skidding teeth.
Preferably, the fixed cylinder is composed of a first cylinder body and a second cylinder body; the connecting cylinder is fixed on the left side of the upper surface of the first cylinder body, and the second cylinder body is fixed at the left end of the first cylinder body.
Preferably, the adjusting cap is a hexagonal prism-shaped metal block.
Preferably, the connecting cylinder is a round hollow metal cylinder, and the inner side wall of the connecting cylinder is provided with threads.
Preferably, the spring sleeve is a cuboid metal block, and a circular groove is formed in one side, close to the center of the reinforcing steel bar groove, of the spring sleeve.
The utility model discloses the beneficial effect who reaches does:
the utility model provides a test piece clamping mechanism of tensile testing machine comprises a fixed cylinder and a connecting cylinder, the bottom of the fixed cylinder is provided with a steel bar groove, the inner side of the steel bar groove is provided with a plurality of plate grooves, clamping plates are movably arranged in the plate grooves, one side of the plate grooves, which is far away from the steel bar groove, is provided with a screw hole, a threaded rod is arranged in the screw hole, and the tail end of the threaded rod is fixed with an adjusting cap for rotating the threaded rod; one side of the clamping plate close to the center of the reinforcing steel bar groove is provided with a clamping groove for clamping the reinforcing steel bar, spring sleeves are fixed on the front side and the rear side of the clamping plate, and springs are fixed between the two spring sleeves of the two opposite clamping plates. Before carrying out tensile test, put into two reinforcing bar inslots that add the mechanism with the upper and lower both ends of reinforcing bar respectively, utilize the rotatory cap of adjusting of sleeve instrument for the threaded rod promotes the grip block and grips the reinforcing bar, and the double-layered groove and the reinforcing bar laminating of grip block stably grip the reinforcing bar. The clamping mechanism is convenient and quick for fixing the steel bar, has good clamping effect on the steel bar, and has good practicability.
Drawings
Fig. 1 is a schematic view of an installation structure of a test piece clamping mechanism of a tensile testing machine of the utility model;
fig. 2 is a schematic view of a front view cross-sectional structure of a test piece clamping mechanism of the tensile testing machine of the present invention; fig. 3 is a schematic top view of the clamping plate of the present invention;
FIG. 4 is a schematic side view of the clamping plate of the present invention;
fig. 5 is a schematic top view of the fixing cylinder of the present invention.
In the drawings: 1. a clamping member; 2. a connecting cylinder; 3. reinforcing steel bars to be detected; 11. a fixed cylinder; 12. a reinforcing steel bar groove; 13. a plate groove; 14. a threaded rod; 15. a clamping plate; 16. an adjusting cap; 17. a spring sleeve; 18. a spring; 111. a first barrel; 112. a second barrel; 151. a clamping groove; 152. and (4) anti-slip teeth.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
As shown in fig. 1, a test piece clamping mechanism of a tensile testing machine comprises a clamping piece 1 and a connecting cylinder 2, wherein the connecting cylinder 2 is fixed at the top end of the clamping piece 1; the clamping piece 1 consists of a fixed cylinder 11, a clamping plate 15, a threaded rod 14 and an adjusting cap 16; a reinforcing steel bar groove 12 is arranged at the center of the lower surface of the fixed cylinder 11, a plurality of opposite plate grooves 13 are arranged on the side wall of the reinforcing steel bar groove 12 from top to bottom, and clamping plates 15 are movably arranged in the plate grooves 13; a screw hole horizontally penetrating through the side wall of the fixed cylinder 11 is formed in one side of the plate groove 13, which is far away from the reinforcing steel bar groove 12, and a threaded rod 14 is installed in the screw hole; an adjusting cap 16 is fixed at one end of the threaded rod 14 far away from the clamping plate 15; spring sleeves 17 are fixed on the front side and the rear side of each clamping plate 15, and springs 18 are fixedly connected between two opposite spring sleeves 17 on the two clamping plates 15 with the same height; the clamping plate 15 has a semicircular notch-shaped clamping groove 151 on the upper surface thereof adjacent to the tendon groove 12.
The utility model discloses a test piece clamping mechanism of tensile testing machine, by the fixed cylinder 11 and connect the section of thick bamboo 2 to constitute, the fixed cylinder 11 bottom is equipped with the reinforcing bar groove 12, the medial surface of reinforcing bar groove 12 is equipped with a plurality of board grooves 13, movable mounting has grip block 15 in the board groove 13, one side that board groove 13 kept away from reinforcing bar groove 12 is equipped with the screw, install threaded rod 14 in the screw, the end of threaded rod 14 is fixed with the adjusting cap 16 that is used for rotatory threaded rod 14; the clamping plate 15 is provided with a clamping groove 151 for clamping the reinforcing steel bar at one side close to the center of the reinforcing steel bar groove 12, spring sleeves 17 are fixed at the front side and the rear side of the clamping plate 15, and a spring 18 is fixed between the two spring sleeves 17 of the two opposite clamping plates 15. Before tensile test, put into two reinforcing bar grooves 12 that add the mechanism with the upper and lower both ends of reinforcing bar respectively, utilize the rotatory adjusting cap 16 of sleeve instrument for threaded rod 14 promotes grip block 15 and presss from both sides the reinforcing bar, and grip block 15's clamp groove 151 and reinforcing bar laminating stably grasp the reinforcing bar. The clamping mechanism is convenient and quick for fixing the steel bar, has good clamping effect on the steel bar, and has good practicability. Specifically, as shown in fig. 1, the utility model discloses a tensile test machine's test piece fixture, including holder 1 and connecting cylinder 2, connecting cylinder 2 is fixed in the top of holder 1, and connecting cylinder 2 is used for being connected with tensile test machine's pull rod. The holder 1 is composed of a fixed cylinder 11, a holding plate 15, a threaded rod 14 and an adjusting cap 16. The fixed cylinder 11 is rectangular, and a rectangular reinforcing steel bar groove 12 is arranged at the center of the lower surface of the fixed cylinder 11 and used for installing the reinforcing steel bar 3 to be tested. The side wall of the reinforcing steel bar groove 12 is provided with a plurality of opposite rectangular plate grooves 13 from top to bottom, clamping plates 15 are movably arranged in the plate grooves 13, and the clamping plates 15 can move left and right along the plate grooves 13. A screw hole horizontally penetrating through the side wall of the fixed cylinder 11 is formed in one side of the plate groove 13, which is far away from the reinforcing steel bar groove 12, and a threaded rod 14 is installed in the screw hole; an adjusting cap 16 is fixed at one end of the threaded rod 14 far away from the clamping plate 15, the threaded rod 14 can be rotated by screwing the adjusting cap 16 by using a sleeve tool, the threaded rod 14 moves left and right along the screw hole, and the clamping plate 15 is pushed to clamp the steel bar 3 to be measured or loosen the clamping plate 15. Spring sleeves 17 are fixed on the front side and the rear side of each clamping plate 15, springs 18 are fixedly connected between two opposite spring sleeves 17 on the two clamping plates 15 with the same height, and when the clamping plates 15 are loosened by moving the threads in the direction away from the rebar groove 12, the springs 18 can push the two clamping plates 15 to move in the direction away from the rebar groove 12, so that the clamped rebar 3 to be measured is loosened. A semicircular notch-shaped clamping groove 151 is formed in one side, close to the reinforcing steel bar groove 12, of the upper surface of the clamping plate 15 and is used for clamping the reinforcing steel bar 3 to be measured. Semicircular clamping groove 151 can increase the contact area with the reinforcing steel bar 3 to be measured, and improves the stability of clamping.
In at least one embodiment, as shown in fig. 1, two clamping plates 15 in two opposite plate slots 13 are in one group, and the clamping slots 151 of the groups of clamping plates 15 in the reinforcement groove 12 have different radii, so that the corresponding clamping plate 15 can be selected for clamping according to the radius of the reinforcement 3 to be measured.
In at least one embodiment, as shown in fig. 4, the side wall of the clamping groove 151 of the clamping plate 15 is provided with anti-slip teeth 152, and the anti-slip teeth 152 are formed by laterally fine triangular prism-shaped protrusions.
In at least one embodiment, as configured in FIG. 5, the fixed barrel 11 is comprised of a first barrel 111 and a second barrel 112; first barrel 111 and second barrel 112 are the cuboid metal block, and reinforcing bar groove 12 sets up in the left side edge of first barrel 111 lower surface, and the left side wall edge of first barrel 111 is equipped with a plurality of spiral shell groove, and the left side wall edge of second barrel 112 is equipped with a plurality of screw, and second barrel 112 passes through the bolt fastening in first barrel 111 left end. The connection cylinder 2 is fixed to the left side of the upper surface of the first barrel 111.
In at least one embodiment, as shown in FIG. 2, the adjustment cap 16 is a hexagonal prism shaped metal block that can be rotated by a hexagonal socket tool.
In at least one embodiment, the connecting cylinder 2 is a circular hollow metal cylinder, the inner side wall of the connecting cylinder 2 is provided with threads, and the connecting cylinder 2 is in threaded connection with a pull rod of a tensile testing machine.
In at least one embodiment, as shown in fig. 3 and 4, the spring sleeve 17 is a rectangular parallelepiped metal block, a circular groove is formed on one side of the spring sleeve 17 near the center of the tendon groove 12, and one end of the spring 18 is fixedly connected to the bottom surface of the spring sleeve 17.
Obviously, the utility model provides a test piece fixture of tensile testing machine comprises a fixed cylinder 11 and a connecting cylinder 2, the bottom of the fixed cylinder 11 is provided with a reinforcing bar groove 12, the medial surface of the reinforcing bar groove 12 is provided with a plurality of plate grooves 13, a clamping plate 15 is movably mounted in the plate groove 13, one side of the plate groove 13 away from the reinforcing bar groove 12 is provided with a screw hole, a threaded rod 14 is mounted in the screw hole, and the end of the threaded rod 14 is fixed with an adjusting cap 16 for rotating the threaded rod 14; the clamping plate 15 is provided with a clamping groove 151 for clamping the reinforcing steel bar at one side close to the center of the reinforcing steel bar groove 12, spring sleeves 17 are fixed at the front side and the rear side of the clamping plate 15, and a spring 18 is fixed between the two spring sleeves 17 of the two opposite clamping plates 15. Before tensile test, put into two reinforcing bar grooves 12 that add the mechanism with the upper and lower both ends of reinforcing bar respectively, utilize the rotatory adjusting cap 16 of sleeve instrument for threaded rod 14 promotes grip block 15 and presss from both sides the reinforcing bar, and grip block 15's clamp groove 151 and reinforcing bar laminating stably grasp the reinforcing bar. The clamping mechanism is convenient and quick for fixing the steel bar, has good clamping effect on the steel bar, and has good practicability.
The foregoing is a preferred embodiment of the present invention, and it should be understood that those skilled in the art can derive the related technical solutions through logic analysis, reasoning or experiment based on the present invention without creative efforts, and therefore, these related technical solutions should be within the protection scope of the present claims.
Claims (7)
1. A test piece clamping mechanism of a tensile testing machine is characterized by comprising a clamping piece (1) and a connecting cylinder (2), wherein the connecting cylinder (2) is fixed at the top end of the clamping piece (1); the clamping piece (1) consists of a fixed cylinder (11), a clamping plate (15), a threaded rod (14) and an adjusting cap (16); a reinforcing steel bar groove (12) is formed in the center of the lower surface of the fixed cylinder (11), a plurality of opposite plate grooves (13) are formed in the side wall of the reinforcing steel bar groove (12) from top to bottom, and clamping plates (15) are movably mounted in the plate grooves (13); one side of the plate groove (13) far away from the reinforcing steel bar groove (12) is provided with a screw hole which horizontally penetrates through the side wall of the fixed cylinder (11), and a threaded rod (14) is arranged in the screw hole; an adjusting cap (16) is fixed at one end of the threaded rod (14) far away from the clamping plate (15); spring sleeves (17) are fixed on the front side and the rear side of each clamping plate (15), and springs (18) are fixedly connected between two opposite spring sleeves (17) on the two clamping plates (15) with the same height; a semicircular gap-shaped clamping groove (151) is arranged on one side of the upper surface of the clamping plate (15) close to the reinforcing steel bar groove (12).
2. The specimen clamping mechanism for a tensile testing machine according to claim 1, wherein the two clamping plates (15) in the two opposite plate grooves (13) are in one set, and the clamping grooves (151) of the sets of clamping plates (15) in the reinforcing bar groove (12) are different in radius.
3. The specimen clamping mechanism of a tensile testing machine according to claim 2, wherein the side wall of the clamping groove (151) of the clamping plate (15) is provided with anti-slip teeth (152).
4. The specimen clamping mechanism of the tensile testing machine according to claim 3, wherein the fixed cylinder (11) is constituted by a first cylinder body (111) and a second cylinder body (112); the connecting cylinder (2) is fixed on the left side of the upper surface of the first cylinder body (111), and the second cylinder body (112) is fixed at the left end of the first cylinder body (111).
5. The specimen clamping mechanism of a tensile testing machine according to claim 4, characterized in that the adjustment cap (16) is a hexagonal prism-shaped metal block.
6. The specimen holding mechanism of a tensile testing machine according to claim 5, wherein the connecting cylinder (2) is a circular hollow metal cylinder, and the inner side wall of the connecting cylinder (2) is provided with a screw thread.
7. The specimen holding mechanism for a tensile testing machine according to claim 6, wherein the spring sleeve (17) is a rectangular parallelepiped metal block, and a circular groove is provided on a side of the spring sleeve (17) near the center of the tendon groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792232.5U CN217384967U (en) | 2022-04-07 | 2022-04-07 | Tensile testing machine's test piece fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792232.5U CN217384967U (en) | 2022-04-07 | 2022-04-07 | Tensile testing machine's test piece fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217384967U true CN217384967U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220792232.5U Active CN217384967U (en) | 2022-04-07 | 2022-04-07 | Tensile testing machine's test piece fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217384967U (en) |
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2022
- 2022-04-07 CN CN202220792232.5U patent/CN217384967U/en active Active
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