CN220854461U - Special testing machine for bolt stretching - Google Patents
Special testing machine for bolt stretching Download PDFInfo
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- CN220854461U CN220854461U CN202322554975.6U CN202322554975U CN220854461U CN 220854461 U CN220854461 U CN 220854461U CN 202322554975 U CN202322554975 U CN 202322554975U CN 220854461 U CN220854461 U CN 220854461U
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- testing machine
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000009864 tensile test Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of stretching test instruments, in particular to a special testing machine for bolt stretching, which comprises a sheet metal base, wherein frames are fixedly arranged on the left side and the right side of the upper end of the sheet metal base, a cross beam is arranged between the upper ends of the frames, a stretching device is fixedly arranged between the middle part of the upper end of a plate rib base and a measurement part, and a bolt test sample is arranged in the middle of the stretching device. When the utility model is used, the synchronous belt is driven by the stepping speed reducing motor to drive the positioning movable rod to rotate, the height position of the upper clamp body is changed under the limit influence of the anti-rotation plate, and the closed loop servo control system formed by the load sensor and the oil cylinder component is matched with the load sensor so as to accurately control the loading force and the loading speed to stretch the bolt test sample, directly measure the loading data, and can carry out high-precision test detection on the bolt test sample, thereby improving the convenience and the adjustment precision of different-degree test space adjustment, improving the operation comfort and simultaneously improving the working efficiency.
Description
Technical Field
The utility model relates to the technical field of tensile test instruments, in particular to a special testing machine for bolt stretching.
Background
The tensile testing machine is also called a material tensile testing machine and a universal tensile strength testing machine, is a new generation of mechanical testing equipment integrating the functions of computer control, automatic measurement, data acquisition, screen display and test result processing, is suitable for testing the mechanical properties of metal and nonmetal materials, and is an indispensable testing equipment for material development, physical property test, teaching research, quality control and the like.
In the current industry, the universal platform of the hydraulic universal testing machine is used for carrying out bolt tensile test by matching with the bolt tensile clamp, but the universal testing machine is provided with a spherical support rod aligning design, so that the tensile precision of a wedge-shaped sample can be reduced, and the universal platform has the advantages of multiple functional redundancy, high cost and inconvenient installation of the heavy bolt clamp. Accordingly, a special testing machine for bolt stretching is provided by those skilled in the art to solve the problems set forth in the background art.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a special testing machine for bolt stretching, which comprises a sheet metal base, wherein frames are fixedly arranged on the left side and the right side of the upper end of the sheet metal base, a cross beam is arranged between the upper ends of the frames, a stretching device is fixedly arranged between the middle part of the upper end of a plate rib base and a measurement part, and a bolt test sample is arranged in the middle part of the stretching device;
The stretching device comprises an oil cylinder assembly, an anti-rotation plate, a load sensor, a lower clamp body, a threaded connector, a flat base plate, an upper clamp body, a positioning movable rod, a synchronous belt and a stepping gear motor, wherein the lower clamp body is fixedly arranged at the upper end of the composite sensor, the lower clamp body is fixedly arranged at the lower end of the positioning movable rod, the upper clamp body is fixedly arranged at the lower end of the positioning movable rod, the stepping gear motor is fixedly arranged at the rear end of a cross beam, and the stepping gear motor and the movable positioning movable rod are in transmission through the synchronous belt.
Preferably: the oil cylinder assembly is arranged on the sheet metal base, and a positioning movable rod is fixed in the middle of the cross beam.
Preferably: the upper end of the oil cylinder assembly and the lower end of the cross beam are fixedly provided with anti-rotation plates, and arc-shaped grooves are formed in the left end and the right end of each anti-rotation plate and are used for being attached to the frame.
Preferably: the upper end of the oil cylinder component passes through the anti-rotation plate and is fixedly provided with a load sensor, and the load sensor is matched with a closed-loop servo control system formed by the oil cylinder component.
Preferably: the upper side of the lower clamp body is provided with a threaded joint, and the inner side of the upper clamp body is provided with a flat base plate which stably positions a bolt test sample.
Preferably: the front side of the upper end of the metal plate base is fixedly provided with a control panel, and the control panel is used for driving and controlling the oil cylinder assembly and the stepping gear motor.
The utility model has the technical effects and advantages that:
1. When the bolt test sample is used, the bolt test sample passes through the backing plate hole of the flat backing plate, and simultaneously the lower side of the bolt test sample is screwed into the threaded joint, so that the bolt test sample is integrally placed between the upper clamp body and the lower clamp body, the stability of the installation of the bolt test sample is improved, and errors caused by dislocation and offset conditions in the stretching process are reduced.
2. When the utility model is used, the synchronous belt is driven by the stepping speed reducing motor to drive the positioning movable rod to rotate, the height position of the upper clamp body is changed under the limit influence of the anti-rotation plate, and the closed loop servo control system formed by the load sensor and the oil cylinder component is matched with the load sensor so as to accurately control the loading force and the loading speed to stretch the bolt test sample, directly measure the loading data, and can carry out high-precision test detection on the bolt test sample, thereby improving the convenience and the adjustment precision of different-degree test space adjustment, improving the operation comfort and simultaneously improving the working efficiency.
Drawings
FIG. 1 is a schematic view of the structure provided by the present application;
FIG. 2 is a schematic view of a drawing device according to the present application;
FIG. 3 is a side view provided by the present application;
In the figure: 1. a sheet metal base; 2. a control panel; 3. a frame; 4. a cross beam; 5. a stretching device; 6. a bolt test sample;
51. An oil cylinder assembly; 52. an anti-rotation plate; 53. a load sensor; 54. a lower clamp body; 55. a threaded joint; 56. a flat backing plate; 57. an upper clamp body; 58. positioning a movable rod; 59. a synchronous belt; 510. a stepping speed reducing motor.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Referring to fig. 1 to 3, in this embodiment, a special testing machine for bolt stretching is provided, which comprises a sheet metal base 1, wherein a control panel 2 is fixedly installed on the front side of the upper end of the sheet metal base 1, frames 3 are fixedly installed on the left side and the right side of the upper end of the sheet metal base 1, a cross beam 4 is arranged between the upper ends of the frames 3, a stretching device 5 is fixedly installed between the middle part of the upper end of a rib base and a scale, and a bolt test sample 6 is installed in the middle of the stretching device 5.
The stretching device 5 comprises an oil cylinder assembly 51, an anti-rotation plate 52, a load sensor 53, a lower clamp body 54, a threaded joint 55, a flat base plate 56, an upper clamp body 57, a positioning movable rod 58, a synchronous belt 59 and a stepping speed reducing motor 510, wherein the oil cylinder assembly 51 is arranged on a sheet metal base 1, the positioning movable rod 58 is fixed in the middle of a beam 4, the anti-rotation plate 52 is fixedly arranged at the upper end of the oil cylinder assembly 51 and the lower end of the beam 4, arc grooves are formed in the left end and the right end of the anti-rotation plate 52 and are used for being attached to a frame 3, the deflection of the arc plates in the stretching process is reduced through the limit arrangement of the frame 3, the stretching error caused by rotation is reduced, the load sensor 53 is fixedly arranged at the upper end of the oil cylinder assembly 51, the lower clamp body 54 is fixedly arranged at the upper end of the composite sensor, the threaded joint 55 is arranged at the upper side of the lower clamp body 54, the lower end of the positioning movable rod 58 is fixedly arranged at the upper clamp body 57, the flat base plate 56 is fixedly arranged at the inner side of the upper clamp body 57, the bolt test sample 6 is stably arranged by the flat base plate 56 and the threaded joint 55, the movable belt 510 is fixedly arranged at the rear end of the beam 4, the stepping motor 510 is fixedly arranged at the lower end of the movable belt 510, the upper clamp body is not accurately adjusted by the synchronous belt 510, and the precision is adjusted.
The working principle of the utility model is as follows:
When the utility model is used, the bolt test sample 6 passes through the pad holes of the flat base plate 56, and simultaneously, the lower side of the bolt test sample 6 is screwed into the threaded joint 55, and the whole body is arranged between the upper clamp body 57 and the lower clamp body 54, so that the installation stability of the bolt test sample 6 is improved, then the synchronous belt 59 is driven by the stepping speed reduction motor 510 to drive the positioning movable rod 58 to rotate, the height position of the upper clamp body 57 is changed under the limit influence of the anti-rotation plate 52, and the load sensor 53 is matched with a closed loop servo control system formed by the oil cylinder assembly 51 to stretch the bolt test sample 6 so as to accurately control the loading force and the loading speed, directly measure the loading data, and perform high-precision test detection on the bolt test sample 6, thereby improving the convenience and the adjustment precision of different-degree test space adjustment, improving the operation comfort and improving the working efficiency.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (6)
1. The special testing machine for bolt stretching comprises a metal plate base (1), and is characterized in that frames (3) are fixedly installed on the left side and the right side of the upper end of the metal plate base (1), a cross beam (4) is arranged between the upper ends of the frames (3), a stretching device (5) is fixedly installed between the middle part of the upper end of the plate bar base and the measurement, and a bolt test sample (6) is installed in the middle of the stretching device (5);
The stretching device (5) comprises an oil cylinder assembly (51), an anti-rotation plate (52), a load sensor (53), a lower clamp body (54), a threaded connector (55), a flat base plate (56), an upper clamp body (57), a positioning movable rod (58), a synchronous belt (59) and a stepping speed reducing motor (510), wherein the lower clamp body (54) is fixedly arranged at the upper end of the compound sensor, the lower end of the positioning movable rod (58) penetrates through the anti-rotation plate (52) and is fixedly provided with the upper clamp body (57), the rear end of the cross beam (4) is fixedly provided with the stepping speed reducing motor (510), and the stepping speed reducing motor (510) and the movable positioning movable rod (58) are in transmission through the synchronous belt (59).
2. The special bolt stretching testing machine according to claim 1, wherein the oil cylinder assembly (51) is arranged on the sheet metal base (1), and a positioning movable rod (58) is fixed in the middle of the cross beam (4).
3. The special testing machine for bolt stretching according to claim 1, wherein the upper end of the oil cylinder assembly (51) and the lower end of the cross beam (4) are fixedly provided with anti-rotation plates (52), and the left end and the right end of each anti-rotation plate (52) are provided with arc grooves for being attached to the frame (3).
4. The special bolt stretching testing machine according to claim 1, wherein a load sensor (53) is fixedly arranged at the upper end of the oil cylinder assembly (51) through the anti-rotation plate (52), and the load sensor (53) is matched with a closed-loop servo control system formed by the oil cylinder assembly (51).
5. The special bolt stretching testing machine according to claim 1, wherein a threaded joint (55) is installed on the upper side of the lower clamp body (54), a flat base plate (56) is arranged on the inner side of the upper clamp body (57), and the flat base plate (56) and the threaded joint (55) are used for stably placing the bolt test sample (6).
6. The special testing machine for bolt stretching according to claim 1, wherein a control panel (2) is fixedly arranged on the front side of the upper end of the sheet metal base (1), and the control panel (2) is used for driving and controlling an oil cylinder assembly (51) and a stepping speed reducing motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554975.6U CN220854461U (en) | 2023-09-20 | 2023-09-20 | Special testing machine for bolt stretching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554975.6U CN220854461U (en) | 2023-09-20 | 2023-09-20 | Special testing machine for bolt stretching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220854461U true CN220854461U (en) | 2024-04-26 |
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ID=90785652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322554975.6U Active CN220854461U (en) | 2023-09-20 | 2023-09-20 | Special testing machine for bolt stretching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220854461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119643297A (en) * | 2024-12-13 | 2025-03-18 | 云南电力试验研究院(集团)有限公司 | Ultrasonic-based bolt pretightening force detection tool and use method thereof |
-
2023
- 2023-09-20 CN CN202322554975.6U patent/CN220854461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119643297A (en) * | 2024-12-13 | 2025-03-18 | 云南电力试验研究院(集团)有限公司 | Ultrasonic-based bolt pretightening force detection tool and use method thereof |
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