CN218496577U - Video extensometer and testing machine - Google Patents
Video extensometer and testing machine Download PDFInfo
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- CN218496577U CN218496577U CN202221746488.9U CN202221746488U CN218496577U CN 218496577 U CN218496577 U CN 218496577U CN 202221746488 U CN202221746488 U CN 202221746488U CN 218496577 U CN218496577 U CN 218496577U
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Abstract
The utility model discloses a video extensometer and testing machine, which at least comprises a supporting device; the data processing device is arranged on the supporting device and used for acquiring test data of a sample to be tested; and the centering device is arranged on the supporting device, arranged outside the data processing device in a side mode and used for calibrating the data acquisition position of the data processing device. The strain of the test sample in the whole test process can be measured by using the video extensometer without contacting the test sample, no extra load is brought to the test sample, and particularly no damage of a knife edge to the test sample is caused to a soft test sample; the repeatability is good, and the influence of an operation method of an operator is avoided; the service life is long, and the fracture of the sample can be continuously tracked; the strain measurement of materials such as ropes, films and the like which are difficult to measure by a common extensometer and under a high-temperature and high-humidity environment can be completed; the application range is wide.
Description
Technical Field
The invention relates to a test device, in particular to a video extensometer and a test machine with the video extensometer.
Background
With the continuous progress of quality consciousness of people at present, the mechanical property test of the material is more and more widely regarded. The extensometer used in the existing mechanical property test has many problems, for example, the direct contact with the sample is easy to cause the damage of the sample, and the test data of the sample is influenced; the broken sample can damage the extensometer and influence the service life of the extensometer; and the current extensometer is difficult to measure the strain of materials such as ropes, films and the like, and the strain measurement under the high-temperature and high-humidity environment has great difficulty.
Accordingly, those skilled in the art have been devoted to developing a video extensometer and tester to solve the above problems.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a video extensometer and testing machine to solve the problems in the prior art.
In order to solve the above problems, the present invention provides a video extensometer that includes at least:
a support device;
the data processing device is arranged on the supporting device and used for collecting test data of a sample to be tested;
the centering device is arranged on the supporting device, laterally arranged outside the data processing device and used for calibrating the data acquisition position of the data processing device.
Furthermore, the supporting device at least has a bracket, the bracket at least has a bracket structure in the horizontal direction and the vertical direction, the bracket in the horizontal direction is connected with the bottom of the data processing device, and the bracket in the vertical direction is connected with the side of the data processing device; the support is provided with a track for realizing the linear displacement or the rotary displacement of the data processing device.
Further, a rotating hole is formed above the support in the horizontal direction, and the data processing device generates rotary displacement based on the rotating hole; the two sides of the bracket in the horizontal direction are provided with baffles so as to limit the rotation angle of the bracket in the horizontal direction.
Furthermore, a linear track is arranged on the support in the vertical direction, a sliding block is arranged on the linear track, the sliding block is connected to the outer side of the data processing device, and the data processing device generates linear displacement on the linear track through the sliding block.
Further, the data processing device at least has an image processing device, a housing is arranged outside the image processing device, and the image processing device is installed on the support through the housing and can realize linear displacement or rotary displacement along a track on the support.
Furthermore, the housing is provided with end-to-end surfaces, an accommodating space is arranged inside the end-to-end surfaces, and the data processing device is installed in the accommodating space formed in the housing and is borne on the surface of the housing at the bottom; the surface of the cover shell positioned at the bottom is connected with the part of the bracket positioned in the horizontal direction, so that the data processing device generates rotary displacement along the rotary hole of the horizontal part of the bracket.
Furthermore, end covers are arranged at two ends of the end-to-end surface of the housing, the end cover positioned on one side of the bracket in the vertical direction is a front cover, the end cover positioned on the other side of the bracket in the vertical direction is a rear cover, and the end-to-end surface, the front cover and the rear cover jointly form the housing with a certain accommodating space; the front cover is provided with a fixed plate, the fixed plate is connected with the sliding block, and the data processing device generates linear displacement on the bracket in the vertical direction through the fixed plate and the sliding block.
Further, the image processing apparatus has at least a lens, one end of the lens is mounted on the bottom surface of the housing through a lens mount, the other end of the lens is disposed on the front cover, and a distance from a lens portion disposed at one end of the front cover to the sample is smaller than a distance from a lens portion mounted at one end of the lens mount.
Further, the data processing device further comprises a controller, the controller is connected with the image processing equipment and receives the sample information shot by the image processing equipment, and a program is arranged in the controller to analyze the sample information.
Furthermore, the data processing device further comprises a light source, the light source is located at the front end of the front cover of the housing and provides light for the image processing device, the light source is connected to the front cover through the light source connecting plate, and a light source adjusting assembly is arranged between the light source and the light source connecting plate to adjust the intensity of the light source.
Further, the light source is preferably a linear light source to form higher illumination intensity; the color spectrum of the light source has at least white light, red light, green light and blue light options.
Furthermore, the centering device at least comprises a laser, the laser is installed inside the housing and symmetrically installed on two sides of the lens through a laser installation seat, and the laser faces one side of the sample.
The invention also provides a testing machine which is provided with the video extensometer and is used for testing a sample to be tested.
Based on above-mentioned technical scheme video extensometer and testing machine have following technological effect:
(1) the strain of the test sample in the whole test process can be measured by using the video extensometer without contacting the test sample, no extra load is brought to the test sample, and particularly no damage of a knife edge to the test sample is caused to a soft test sample;
(2) the repeatability is good, and the influence of an operation method of an operator is avoided;
(3) the service life is long, the problem that a common extensometer is damaged by a broken sample does not exist, and the breakage of the sample can be continuously tracked;
(4) the strain measurement of materials such as ropes, films and the like which are difficult to measure by a common extensometer and under a high-temperature and high-humidity environment can be completed;
(5) the video extensometer can be used for testing all materials in different fields, is used for testing soft materials and hard materials, and has wide application range.
Drawings
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
FIG. 1 is a front view of a video extensometer according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a perspective view of FIG. 1;
in the figure:
100. a horizontal support; 101. a vertical support; 102. a baffle plate; 103. a linear track; 104. sliding block
2. A data processing device; 20. an image processing apparatus; 200. a housing; 2000. a bottom surface; 2001. a front cover;
2002. a rear cover; 2003. a fixing plate; 201. a lens; 202. a lens mount; 21. a light source; 210.
a light source connecting plate; 211. a light source adjustment assembly;
30. a laser; 31. laser installation seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solution of the present invention will be described in detail with the following embodiments in conjunction with the accompanying fig. 1-3.
A video extensometer, the video extensometer including at least:
a support device;
the data processing device is arranged on the supporting device and is used for collecting test data of a sample to be tested;
and the centering device is arranged on the supporting device, laterally arranged outside the data processing device and used for calibrating the data acquisition position of the data processing device.
Based on the structure, the more specific expression is as follows:
the supporting device at least comprises a bracket, the bracket at least comprises a bracket body structure in the horizontal direction and the vertical direction, namely a horizontal bracket 100 and a vertical bracket 101, the horizontal bracket 100 is connected with the bottom of the data processing device, and the vertical bracket 101 is connected with the side of the data processing device; the support is provided with a track for realizing the linear displacement or the rotary displacement of the data processing device.
A rotating hole is formed above the horizontal bracket 100, and the data processing device generates rotary displacement based on the rotating hole; the horizontal bracket has baffles 102 on both sides thereof to define the rotation angle of the horizontal bracket 100. Generally, one end of the horizontal bracket 100 can be connected to a testing machine or other fixed support columns to perform overall positioning of the video extensometer, so that the video extensometer can be arranged on one side of the testing machine or on two sides of the testing machine, corresponding to the position of a test sample; the connection structure between the horizontal bracket 100 and the testing machine may be a linear plate-like or rod-like structure, or a bending structure having a folding structure, so as to adjust the overall positioning of the video extensometer.
The vertical support 101 has a linear track 103, a slider 104 is disposed on the linear track 103, the slider 104 is connected to the outer side of the data processing device 2, and the data processing device 2 generates linear displacement on the linear track 103 through the slider 104. In general, the vertical supports 101 are disposed at both sides, symmetrically with respect to the connecting portion of the horizontal support 100 and the data processing device 2.
The data processing device 2 has at least an image processing device 20, the image processing device 20 is externally provided with a housing 200, and the image processing device 20 is mounted on a support through the housing 200 and can realize linear displacement or rotational displacement along a track on the support.
More specifically, the housing 200 has end-to-end surfaces, the interior of the end-to-end surfaces has an accommodating space, the data processing device 2 is installed in the accommodating space formed in the housing 200, and the data processing device 2 is carried on the bottom surface 2000 of the housing 200 at the bottom; the bottom surface 2000 of the housing 200 is connected to the horizontal support 100 to allow the data processing device 2 to be rotationally displaced along the rotation hole of the horizontal support 100.
End covers are arranged at two ends of the end-to-end surface of the housing 200, the end cover positioned at one side of the vertical support 101 is a front cover 2001, the end cover at the other side is a rear cover 2002, and the end-to-end surface, the front cover 2001 and the rear cover 2002 together form the housing 200 with a certain accommodating space; the front cover 2001 is provided with a fixing plate 2003, the fixing plate 2003 is connected to the slider 104, and the data processing device 2 is linearly displaced on the vertical support by the fixing plate 2003 and the slider 104.
In this embodiment, the housing 200 may have a square structure, and in other embodiments, the housing 200 may have a structure in which the bottom surface 2000 is a plane, and other end-to-end surfaces are arc surfaces, or other polygonal columnar structures in which the end-to-end surfaces are larger than two planes, for example, a triangular columnar structure and a pentagonal columnar structure … … are within the protection scope of the present technical solution.
The image processing apparatus 20 has at least a lens 201, and in actual use, the image processing apparatus 20 may be a camera, or other photographable apparatus, one end of the lens 201 of the image processing apparatus 20 is mounted on the bottom surface of the housing 200 through a lens mount 202, the other end of the lens 201 is placed on the front cover 2001, and a portion of the lens 201 placed on one end of the front cover 2001 is located at a smaller distance from the sample than a portion of the lens 201 mounted on one end of the lens mount 202.
The data processing device 2 further comprises a controller (not shown in the figure), which is connected to the image processing device 20 and receives the sample information captured by the image processing device 20, and a program is provided in the controller to analyze the sample information.
The data processing device 2 further comprises a light source 21, the light source 21 is positioned at the front end of the front cover 2001 of the housing 200, the light source 21 is provided for the image processing device 20, the light source 21 is connected on the front cover 2001 through a light source connecting plate 21, and a light source adjusting component 211 is arranged between the light source 21 and the light source connecting plate 210 to adjust the intensity of the light source 21.
The light source 21 is preferably a linear light source to provide higher illumination intensity; the color spectrum of the light source 21 has at least white, red, green and blue light options.
The centering device at least comprises a laser 30, the laser 30 is arranged inside the housing 200 and symmetrically arranged at two sides of the lens 201 through a laser mounting seat 31, and the laser 30 faces one side of the sample.
It should be noted that, unless otherwise defined, technical terms or scientific terms used herein should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. The terms "connected" or "coupled" and the like as used in the description and claims of the present patent application are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "end", "side", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships are changed accordingly.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any uses or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the present invention is not limited to the structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A video extensometer, characterized in that it comprises at least:
a support device;
the data processing device is arranged on the supporting device and is used for collecting test data of a sample to be tested;
the centering device is arranged on the supporting device, laterally arranged outside the data processing device and used for calibrating the data acquisition position of the data processing device;
the supporting device at least comprises a support, the support at least comprises a frame body structure in the horizontal direction and the vertical direction, the support in the horizontal direction is connected with the bottom of the data processing device, and the support in the vertical direction is connected with the side of the data processing device; the support is provided with a track for realizing the linear displacement or the rotary displacement of the data processing device.
2. The video extensometer of claim 1 wherein the horizontally oriented support has a rotation hole above it, the data processing device producing a rotational displacement based on the rotation hole; the two sides of the bracket in the horizontal direction are provided with baffles so as to limit the rotation angle of the bracket in the horizontal direction.
3. The video extensometer of claim 2 wherein the vertically oriented carriage has a linear track thereon, the linear track having a slider disposed thereon, the slider being attached to an outer side of the data processing device, the data processing device producing linear displacement on the linear track via the slider.
4. The video extensometer according to claim 3, characterized in that the data processing device has at least an image processing device, which is externally provided with a casing, the image processing device being mounted on the support by means of the casing and being capable of linear displacement or rotational displacement along a track on the support.
5. The video extensometer of claim 4 wherein the casing has end-to-end faces with a receiving space therein, the data processing device being mounted in the receiving space formed in the casing and carried on the bottom face of the casing; the surface of the cover shell positioned at the bottom is connected with the part of the bracket positioned in the horizontal direction so as to realize that the data processing device generates rotary displacement along the rotary hole of the horizontal part of the bracket;
end covers are arranged at two ends of the end-to-end connection surface of the housing, the end cover positioned on one side of the bracket in the vertical direction is a front cover, the end cover positioned on the other side of the bracket in the vertical direction is a rear cover, and the end-to-end connection surface, the front cover and the rear cover jointly form the housing with a certain accommodating space; the front cover is provided with a fixed plate, the fixed plate is connected with the sliding block, and the data processing device generates linear displacement on the bracket in the vertical direction through the fixed plate and the sliding block.
6. The video extensometer of claim 5 wherein the image processing device has at least a lens, one end of the lens is mounted on the bottom surface of the housing through a lens mount, the other end of the lens is disposed on the front cover, and the portion of the lens disposed on the one end of the front cover is less distant from the specimen than the portion of the lens mounted on the one end of the lens mount.
7. The video extensometer of claim 6 wherein the data processing apparatus further includes a controller connected to the image processing device for receiving sample information captured by the image processing device, the controller having a program disposed therein for analyzing the sample information.
8. The video extensometer of claim 7 wherein the data processing device further includes a light source located at the front end of the front cover of the enclosure providing a light source for the image processing device, the light source being connected to the front cover by the light source connection plate and a light source adjustment assembly being disposed between the light source and the light source connection plate to adjust the intensity of the light source;
the light source is a linear light source to form higher illumination intensity;
the color spectrum of the light source has at least white light, red light, green light and blue light options.
9. The video extensometer of claim 8 wherein the centering device includes at least a laser mounted inside the housing and symmetrically mounted on both sides of the lens by laser mounts, the laser facing the specimen side.
10. A testing machine having a video extensometer as claimed in any one of claims 1-9 for performing tests on a sample to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221746488.9U CN218496577U (en) | 2022-07-06 | 2022-07-06 | Video extensometer and testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221746488.9U CN218496577U (en) | 2022-07-06 | 2022-07-06 | Video extensometer and testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218496577U true CN218496577U (en) | 2023-02-17 |
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ID=85184076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221746488.9U Active CN218496577U (en) | 2022-07-06 | 2022-07-06 | Video extensometer and testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218496577U (en) |
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2022
- 2022-07-06 CN CN202221746488.9U patent/CN218496577U/en active Active
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