CN220153866U - Tensile test structure - Google Patents
Tensile test structure Download PDFInfo
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- CN220153866U CN220153866U CN202321616473.5U CN202321616473U CN220153866U CN 220153866 U CN220153866 U CN 220153866U CN 202321616473 U CN202321616473 U CN 202321616473U CN 220153866 U CN220153866 U CN 220153866U
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- fixing
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- 238000009864 tensile test Methods 0.000 title claims description 9
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000000034 method Methods 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
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a tensile force testing structure which comprises an operation table and a testing mechanism arranged on the operation table, wherein the testing mechanism comprises a first testing part, a guide rail, a second testing part, a sliding block arranged on the guide rail and used for fixing the second testing part, a driving structure and a control unit, wherein the driving structure is used for driving the sliding block to enable the second testing part to move along the guide rail; the first test part and the second test part comprise a force sensor, a connecting structure fixed at the signal receiving end of the force sensor and a tension spring fixing tool; one end of the tension spring fixing tool is provided with a fixing structure detachably connected with the connecting structure, and the other end of the tension spring fixing tool is provided with a threaded hole for fixing the end part of the tension spring; the force sensor and the driving structure are both in signal connection with the control unit. The precision of the tension spring loading effective test can be improved.
Description
Technical Field
The utility model relates to the technical field of tension spring performance test, in particular to a tension test structure.
Background
Springs are an important component of the engine. A tension spring in an engine comprises a tension spring main body and end parts arranged at two ends of the tension spring, wherein the diameter of the end parts is smaller than that of a tension spring main body section. The diameter of the spring is small, the pitch of the thread is small, and the number of the spring turns of the tension spring main body is more than 600 turns. When carrying out performance test to this spring, for example when carrying out loading effective test, current needs cut the extension spring, is the cyclic annular cover on testing arrangement after fixing both ends, however, adopts this structure, because the extension spring both ends adopt fixing device to fix, when the test, each position of extension spring is concentric, and diameter precision leads to length variation great, and the extension spring accepts inequality, and extension spring performance test precision is not high.
Disclosure of Invention
The utility model aims to overcome the defect of low test precision of a loading effective test tool on a tension spring in the prior art, and provides a tension test structure which can improve the precision of the loading effective test of the tension spring.
The aim of the utility model is achieved by the following technical scheme:
the tension test structure comprises an operation table and a test mechanism arranged on the operation table, wherein the test mechanism comprises a first test part, a guide rail, a second test part, a sliding block arranged on the guide rail and used for fixing the second test part, a driving structure used for driving the sliding block to enable the second test part to move along the guide rail, and a control unit;
the first test part and the second test part comprise a force sensor, a connecting structure fixed at the signal receiving end of the force sensor and a tension spring fixing tool;
one end of the tension spring fixing tool is provided with a fixing structure detachably connected with the connecting structure, and the other end of the tension spring fixing tool is provided with a threaded hole for fixing the end part of the tension spring;
the force sensor and the driving structure are both in signal connection with the control unit.
In one possible design, the connection structure is a connection piece with a locking hole;
the fixing structure is a through hole, and the tension spring fixing tool and the connecting structure are fixed through locking pieces arranged in the locking holes and the through holes.
In one possible design, the axis of the through hole is perpendicular to the axis of the threaded hole.
In one possible design, the axis of the through hole is on the same plane as the axis of the threaded hole.
In one possible design, the driving structure includes a screw connected to the slider and a motor for driving the screw to rotate.
The utility model has the following advantages:
1. the first test part and the second test part of the tension test structure are arranged on a plane, and during testing, the end part of the tension spring is fixed and then stretched through the tension spring fixing tool, so that the stress at each position of the tension spring is uniform, and the precision of the tension spring loading actual effect test can be improved.
2. According to the scheme, the force sensors are arranged on the first test part and the second test part, namely, the force sensors are arranged at the two ends of the tension spring to collect the stress condition of the tension spring, so that the accuracy of the test can be improved.
Drawings
FIG. 1 is a schematic diagram of a tensile testing structure according to the present utility model;
fig. 2 is an enlarged view of a portion a in fig. 1;
fig. 3 is a schematic structural view of the tension spring fixing tool.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, the utility model discloses a tensile force testing structure, which comprises an operation table 1 and a testing mechanism arranged on the operation table 1, wherein the testing mechanism comprises a first testing part, a guide rail 2, a second testing part, a sliding block 3, a driving structure 4 and a control unit.
The first test part is fixed on the operation panel 1, the slider 3 is arranged on the guide rail 2, the second test part is fixed on the slider 3 and follows the slider 3, and the output end of the driving structure 4 is connected on the slider 3 so as to drive the slider 3 to move along the guide rail 2.
The first test part and the second test part comprise a force sensor 51, a connecting structure 52 fixed at the signal receiving end of the force sensor 51 and a tension spring fixing tool 53. One end of the tension spring fixing tool 53 is provided with a fixing structure 531 detachably connected with the connecting structure, and the other end of the tension spring fixing tool is provided with a threaded hole 532 for fixing the end of the tension spring. The tension springs are connected by the threaded holes, so that the installation and the fixing operation are facilitated. Because the end part of the tension spring is fixed with the tension spring fixing tool by adopting the threaded holes, the direct installation is inconvenient during the installation. The tension spring fixing tool is detachably connected with the connecting structure, so that one end of the tension spring is fixed on the tension spring fixing tool before being connected with other parts of the testing part.
The force sensor and the driving structure are both in signal connection with the control unit.
Specifically, the connection structure 52 adopts a connection piece structure, and a locking hole is provided on the connection piece. Correspondingly, referring to fig. 3, in order to facilitate the fixation of the tension spring fixing tool 53, the tension spring fixing tool is columnar and corresponds to the locking hole on the connecting structure 52, the fixing structure 531 is a through hole, and the axis of the through hole is perpendicular to the axis of the threaded hole 532. When the fixing is performed, the locking piece can be directly inserted into the locking hole and the fixing structure 531, so that the fixing can be realized, and the operation is convenient. The locking element may be a bolt, a latch or the like.
In order to further improve the accuracy of the loading effective test, the axis of the through hole is perpendicular to the axis of the threaded hole, and the axis of the through hole and the axis of the threaded hole are on the same plane. By adopting the arrangement, the stress direction of the force sensor is parallel to the tension spring and the stress of the force sensor coincides with the axis of the tension spring during the tensile test, so that the test precision is improved.
In order to improve the movement control precision of the sliding block and thus the test precision, the driving structure comprises a screw rod connected to the sliding block and a motor for driving the screw rod to rotate. And the screw rod is adopted for transmission, so that the displacement precision is high.
In a specific embodiment, such as a spring-like loading effect test in an electric motor, the diameter of the threaded hole is 2.6mm and the pitch of the threaded hole is 0.8mm. Alternatively, the threaded bore diameter is 3.9 mm, and the threaded bore pitch is 0.8mm.
The control unit is the control core of whole tensile test structure, can adopt intelligent unit such as PLC, microcontroller to realize, and its control motor work and according to force sensor data realization loading actual effect test part is prior art, does not make in this scheme and describe repeatedly. In order to facilitate the acquisition of the loading effective test data, a display device such as a liquid crystal display unit, an LED display unit and the like can be connected to the control unit, so that the corresponding test data of the tension spring can be intuitively acquired during the test.
During tension testing of a tension spring, threads at two ends of the tension spring 6 are respectively fixed in threaded holes 532 of two tension spring fixing tools 53, the sliding block 3 is adjusted to a proper position, and through holes and locking holes of the tension spring fixing tools 53 at two ends are locked through locking pieces.
The driving structure is controlled to operate, the driving sliding block moves along the guide rail 2 in the direction away from the first testing part, at the moment, the second testing part can be driven to move in the direction away from the first testing part, and in the moving process, the tension test of the tension spring can be realized. In the testing process, the tension springs are in a straight line, the stress of each position is uniform, and the precision of the loading effective test of the tension springs can be improved.
Because both ends of the tension spring are provided with force sensors, the accuracy of the test can be improved.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. The tension test structure comprises an operation table and a test mechanism arranged on the operation table, and is characterized in that the test mechanism comprises a first test part, a guide rail, a second test part, a sliding block arranged on the guide rail and used for fixing the second test part, a driving structure used for driving the sliding block to enable the second test part to move along the guide rail, and a control unit;
the first test part and the second test part comprise a force sensor, a connecting structure fixed at the signal receiving end of the force sensor and a tension spring fixing tool;
one end of the tension spring fixing tool is provided with a fixing structure detachably connected with the connecting structure, and the other end of the tension spring fixing tool is provided with a threaded hole for fixing the end part of the tension spring;
the force sensor and the driving structure are both in signal connection with the control unit.
2. A tensile testing structure according to claim 1, wherein: the connecting structure is a connecting sheet with a locking hole;
the fixing structure is a through hole, and the tension spring fixing tool and the connecting structure are fixed through locking pieces arranged in the locking holes and the through holes.
3. A tensile testing structure according to claim 2, wherein: the axis of the through hole is perpendicular to the axis of the threaded hole.
4. A tensile testing structure according to claim 2 or 3, characterized in that: the axis of the through hole is on the same plane with the axis of the threaded hole.
5. A tensile testing structure according to claim 1, wherein: the driving structure comprises a screw rod connected to the sliding block and a motor for driving the screw rod to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616473.5U CN220153866U (en) | 2023-06-25 | 2023-06-25 | Tensile test structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616473.5U CN220153866U (en) | 2023-06-25 | 2023-06-25 | Tensile test structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220153866U true CN220153866U (en) | 2023-12-08 |
Family
ID=89014089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321616473.5U Active CN220153866U (en) | 2023-06-25 | 2023-06-25 | Tensile test structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220153866U (en) |
-
2023
- 2023-06-25 CN CN202321616473.5U patent/CN220153866U/en active Active
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