Adjustable support for DIC stress test

By designing the third adjustment component of the adjustable bracket as an arc-shaped structure, the problem of complex camera position adjustment in DIC stress testing was solved, enabling flexible angle and position adjustment of the camera and simplifying the operation process.

CN223648953UActive Publication Date: 2025-12-09CHINA RAILWAY CONSTR HEAVY IND
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Patent Information

Application Number
CN202520175492.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2025-12-09
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

In existing DIC stress testing, adjusting the camera position is complex, time-consuming, and labor-intensive, requiring frequent adjustments of the horizontal and vertical adjustment components to accommodate different testing points.

Method used

Design an adjustable bracket comprising a base, a first adjustment component, a second adjustment component, and a third adjustment component. The third adjustment component has an arc-shaped structure for connecting the camera and can move along the arc to adjust the shooting angle, avoiding frequent adjustments to the horizontal and vertical positions.

Benefits of technology

It simplifies the camera's position and angle, enables flexible camera adjustments, and reduces operation steps and time.

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Abstract

The embodiment of the utility model provides an adjustable support for a DIC stress test, which relates to the technical field of stress test and comprises a base, a first adjusting assembly, a second adjusting assembly and a third adjusting assembly. Wherein the base extends along a first direction; the first adjusting assembly is arranged on the base and can move in the first direction. The second adjusting assembly is connected to the first adjusting assembly, and the second adjusting assembly can move in the second direction; the third adjusting assembly is connected to the second adjusting assembly, the third adjusting assembly is used for being movably connected with a DIC stress test camera, at least part of the third adjusting assembly is in an arc shape so as to adjust the shooting angle of the DIC stress test camera, and the situation that the position of the DIC stress test camera is adjusted frequently by adjusting the first adjusting assembly and the second adjusting assembly is avoided. And the device is simple and convenient to operate, and is time-saving and labor-saving.
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Description

Technical Field

[0001] This application relates to the field of stress testing technology, and more particularly to an adjustable support for DIC stress testing. Background Technology

[0002] Digital image correlation (DIC), also known as digital speckle correlation, is a non-contact, vision-based method for measuring full-field displacement and strain. Its basic principle is to acquire digital images of samples under different conditions (mechanical loads or environmental conditions) and then use correlation algorithms to track the displacement of the region of interest.

[0003] In related technologies, DIC stress testing mainly involves using a camera to capture images of test points at different locations, which are then imported into a computer for analysis to obtain the entire deformation process of the object. The camera can be placed on an adjustable bracket, which includes a horizontal adjustment component capable of horizontal movement and a vertical adjustment component capable of vertical movement. By adjusting the horizontal and vertical movement distances of the horizontal and vertical adjustment components, the camera position can be adjusted for image capture.

[0004] However, for any detection point at any different location, the position of the camera needs to be adjusted frequently by adjusting the horizontal and vertical adjustment components, which is complicated, time-consuming and labor-intensive. Utility Model Content

[0005] This application provides an adjustable bracket for DIC stress testing, which overcomes the problem in the prior art that the position of the camera needs to be frequently adjusted by adjusting the horizontal and vertical adjustment components for any different test point, which is complicated, time-consuming and labor-intensive.

[0006] This application provides an adjustable support for DIC stress testing, comprising: a base extending along a first direction; a first adjustment component disposed on the base and movable along the first direction; a second adjustment component connected to the first adjustment component and movable along a second direction; and a third adjustment component connected to the second adjustment component, wherein a camera for DIC stress testing is movably connected to the third adjustment component, and at least a portion of the third adjustment component is arc-shaped to adjust the shooting angle of the camera for DIC stress testing.

[0007] In one possible implementation, the third adjustment component includes a slide rail, a slider, and a locking member. The slide rail is rotatably connected to the second adjustment component, the slider is slidably connected to the slide rail, the slider has a bearing surface for placing the camera, and the locking member is connected to the slider for locking the slider to move along the extension direction of the slide rail.

[0008] In one possible implementation, the slide rail is provided with scale lines.

[0009] In one possible implementation, the slide rail has a groove, and the slider has a pulley on the side facing the slide rail, with the pulley installed in the groove.

[0010] In one possible implementation, the slide rail is a C-shaped slide rail, and the locking element is a locking bolt, which passes through the slider and abuts against the slide rail.

[0011] In one possible implementation, a connecting component is further included, the connecting component comprising a connecting block, a pin, and a limiting member, the pin passing through the slide rail and the connecting block in sequence, and the pin being connected to the second adjusting component, the limiting member being connected to the pin to fix the slide rail.

[0012] In one possible implementation, the surface of the connecting block is provided with a scale, and the slide rail can rotate relative to the pin and along the scale to adjust the relative position of the slide rail and the second adjusting component.

[0013] In one possible implementation, the second adjustment component includes a column and a sleeve. The column extends along the second direction, one end of the column is connected to the third adjustment component, and the other end of the column is connected to the sleeve. One end of the sleeve is mounted on the outer peripheral wall of the column, and the other end of the sleeve is connected to the first adjustment component. The sleeve moves along the extension direction of the column to adjust the relative height of the column.

[0014] In one possible implementation, the first adjustment component includes a movable block, a guide rod, and a fixing member. The movable block is slidably disposed on the base and connected to the second adjustment component. The guide rod extends along the first direction and is disposed parallel to and spaced apart on the base, passing through the movable block. The fixing member is connected to the movable block for locking the movable block to move along the extension direction of the base.

[0015] In one possible implementation, an anti-slip pad is also included, which is disposed on the bottom surface of the base.

[0016] The adjustable bracket for DIC stress testing provided in this application embodiment connects a third adjustment component to a second adjustment component, and sets at least part of the third adjustment component to an arc-shaped structure. The camera for DIC stress testing is movably connected to the third adjustment component. For some detection points, the camera can move along the arc-shaped structure to adjust the position of the camera, avoiding frequent adjustments to the camera position by adjusting the first and second adjustment components. This allows for shooting and analysis of detection points at any location, making the operation simple, time-saving, and labor-saving. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 A schematic diagram of an adjustable support for DIC stress testing provided in this application;

[0019] Figure 2 A cross-sectional view of the third adjustment component of an adjustable bracket for DIC stress testing provided in this application;

[0020] Figure 3 A side view of an adjustable bracket for DIC stress testing provided in this application;

[0021] Figure 4 A cross-sectional view of the first adjustment component of an adjustable bracket for DIC stress testing provided in this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100-First adjusting component; 110-Moving block; 120-Guide rod; 130-Fixing component; 200-Second adjusting component; 210-Column; 220-Sleeve; 230-Positioning pin; 300-Third adjusting component; 310-Slide rail; 311-Groove; 320-Slider; 321-Pulley; 330-Locking component; 400-Base; 500-Camera; 600-Connecting component; 610-Connecting block; 620-Pin; 630-Limiting component; 700-Anti-slip pad.

[0024] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0026] The terms "first," "second," "third," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0027] Secondly, it should be noted that in the description of this application, the terms "inner", "outer", "first direction", "second direction", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0028] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] As shown in the background section, in related technologies, DIC stress testing mainly involves using a camera to capture images of test points at different locations, which are then imported into a computer for analysis to obtain the entire deformation process of the object. The camera can be placed on an adjustable bracket, which includes a horizontal adjustment component capable of horizontal movement and a vertical adjustment component capable of vertical movement. By adjusting the horizontal and vertical movement distances of the horizontal and vertical adjustment components, the position of the camera can be adjusted for image capture.

[0030] However, for any detection point at any different location, the position of the camera needs to be adjusted frequently by adjusting the horizontal and vertical adjustment components, which is complicated, time-consuming and labor-intensive.

[0031] To address the aforementioned technical problems, this application provides an adjustable support for DIC stress testing, comprising: a base, a first adjustment component, a second adjustment component, and a third adjustment component. The base extends along a first direction; the first adjustment component is disposed on the base and is movable along the first direction; the second adjustment component is connected to the first adjustment component and is movable along a second direction; the third adjustment component is connected to the second adjustment component, and a camera for DIC stress testing is movably connected to the third adjustment component. At least a portion of the third adjustment component is arc-shaped to adjust the shooting angle of the camera for DIC stress testing. For some detection points, the camera can move along the arc-shaped structure to adjust the camera's position and shooting angle, avoiding frequent adjustments to the camera position by adjusting the first and second adjustment components. This allows for shooting and analysis of detection points at any location, simplifying operation and saving time and effort.

[0032] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0033] This application provides an adjustable bracket for DIC stress testing, combined with... Figures 1 to 4 As shown, it includes:

[0034] Base 400, base 400 extends along a first direction;

[0035] A first adjustment component 100 is disposed on a base 400 and is movable along a first direction;

[0036] The second adjustment component 200 is connected to the first adjustment component 100 and can move along the second direction;

[0037] A third adjustment component 300 is connected to the second adjustment component 200. The third adjustment component 300 is used to movably connect a camera 500 for DIC stress testing. At least a portion of the third adjustment component 300 is arc-shaped to adjust the shooting angle of the camera 500 for DIC stress testing.

[0038] Understandably, the component to be tested can be a rock drill boom. When performing DIC stress testing on it, due to the large size of the rock drill boom and the numerous testing points, existing adjustment brackets can only adjust the camera position by adjusting the first and second directions. This is inconvenient for adjusting the camera to the testing point for shooting, the operation is complex, and repeated adjustments of the camera's position in the first and second directions can easily cause errors. Therefore, a third adjustment component 300 can be set up, connected to the second adjustment component 200 that moves along the second direction, and the camera 500 can be movably connected to the arc-shaped third adjustment component 300. This increases the adjustable position and shooting angle of the camera 500, and is not limited to adjusting the camera 500 position along the first and second directions.

[0039] Specifically, refer to Figure 1 As shown, by connecting the third adjustment component 300 to the second adjustment component 200, and setting at least part of the third adjustment component 300 to an arc-shaped structure, the camera 500 for DIC stress testing is movably connected to the third adjustment component 300. For some detection points, the camera 500 can move along the arc-shaped structure to adjust the position and shooting angle of the camera 500, avoiding frequent adjustments to the position of the camera 500 by adjusting the first adjustment component 100 and the second adjustment component 200. This allows for shooting and analysis of detection points at any position, making the operation simple, time-saving, and labor-saving.

[0040] In one possible implementation, combining Figure 1 and Figure 2 As shown, the third adjustment component 300 includes a slide rail 310, a slider 320, and a locking member 330. The slide rail 310 is rotatably connected to the second adjustment component 200, and the slider 320 is slidably connected to the slide rail 310. The slider 320 has a bearing surface for placing the camera 500. The locking member 330 is connected to the slider 320 and is used to lockably move the slider 320 along the extension direction of the slide rail 310.

[0041] Specifically, in combination Figure 1 and Figure 2 As shown, the slide rail 310 is rotatably connected to the second adjustment component 200, allowing the slide rail 310 to rotate in the plane and thus adjust the position of the camera 500. The slider 320 is slidably connected to the slide rail 310, and the bearing surface of the slider 320 can support and fix the camera 500. Therefore, the camera 500 can synchronously adjust its shooting position and angle as the slider 320 moves. This not only increases the adjustable shooting angles of the camera 500 but also eliminates the need for multiple adjustments to the first adjustment component 100 and the second adjustment component 200, simplifying operation. The locking member 330 can be connected to the slider 320 to fix the slider 320 to a specific position on the slide rail 310, preventing the camera 500 from shaking during shooting.

[0042] Furthermore, the slide rail 310 may be provided with scale lines. It is understood that these scale lines can be angular scale lines, so as to accurately measure the angle of movement of the camera 500 along the slide rail 310, accurately measure the position of the camera 500, and precisely position it to improve the accuracy of the DIC stress test.

[0043] Furthermore, referring to Figure 2 and Figure 3 As shown, a groove 311 is provided on the slide rail 310, and a pulley 321 is provided on the side of the slider 320 facing the slide rail 310. The pulley 321 is installed in the groove 311. It can be understood that with this arrangement, the pulley 321 is installed in the groove 311 and can move along the extension direction of the groove 311, reducing friction and facilitating the movement of the slider 320 along the extension direction of the slide rail 310.

[0044] In one possible implementation, combining Figure 1 and Figure 2 As shown, slide rail 310 is a C-shaped slide rail, and locking element 330 is a locking bolt. The locking bolt passes through slider 320 and abuts against slide rail 310.

[0045] Understandably, the slide rail 310 can be a C-shaped slide rail with an opening, allowing the part to be inspected to pass through the opening and be placed in the middle of the slide rail 310, thereby adjusting the camera 500 to move along the slide rail 310 to capture images of the inspection points of the part. The locking member 330 used to fix the position of the slider 320 can be a locking bolt. The slider 320 has a threaded hole, through which the locking bolt passes and is tightened, causing the locking bolt to abut against the side wall of the slide rail 310, thereby fixing the slider 320 to a certain position on the slide rail 310.

[0046] In one possible implementation, combining Figure 1 and Figure 3 As shown, it also includes a connecting component 600, which includes a connecting block 610, a pin 620, and a limiting member 630. The pin 620 passes through the slide rail 310 and the connecting block 610 in sequence, and the pin 620 is connected to the second adjusting component 200. The limiting member 630 is connected to the pin 620 to fix the slide rail 310.

[0047] Specifically, in combination Figure 1 and Figure 3 As shown, the pin 620 passes through the slide rail 310 and the connecting block 610 in sequence, and the pin 620 is connected to the second adjustment component 200, so that the slide rail 310 can rotate relative to the second adjustment component 200. The limiting member 630 passes through the connecting block 610 and is connected to the pin 620 to fix the slide rail 310 to a certain position and prevent the slide rail 310 from shaking, thereby affecting the accuracy of the camera 500 shooting.

[0048] Of course, in other embodiments, the connecting component 600 can also be configured as a ball joint and a ball sleeve connection structure, that is, one of the second adjusting component 200 and the slide rail 310 is connected to the ball joint, and the other is connected to the ball sleeve. The ball joint and the ball sleeve are connected by a ball joint, so that the slide rail 310 can move and adjust its angle relative to the second adjusting component 200, thereby adjusting the shooting angle of the camera 500. Therefore, the specific structure of the connecting component 600 is not limited, as long as it can allow the slide rail 310 to rotate freely in the horizontal plane to adjust its angle, thereby increasing the shooting angle adjustment of the camera 500.

[0049] Furthermore, the surface of the connecting block 610 is provided with a scale, and the slide rail 310 can rotate relative to the pin 620 and along the scale to adjust the relative position of the slide rail 310 and the second adjustment component 200. This arrangement allows for precise adjustment of the relative rotation angle of the slide rail 310, and precise positioning of the camera 500 and the shooting angle.

[0050] In one possible implementation, reference is made to Figure 1 and Figure 3 As shown, the second adjustment component 200 includes a column 210 and a sleeve 220. The column 210 extends along a second direction. One end of the column 210 is connected to the third adjustment component 300, and the other end of the column 210 is connected to the sleeve 220. One end of the sleeve 220 is installed on the outer peripheral wall of the column 210, and the other end of the sleeve 220 is connected to the first adjustment component 100. The sleeve 220 moves along the extension direction of the column 210 to adjust the relative height of the column 210.

[0051] Specifically, refer to Figure 1 and Figure 3 As shown, the sleeve 220 is fixedly connected to the movable block 110 (described below), and the column 210 is inserted into the sleeve 220. The position of the camera 500 in the second direction can be adjusted by inserting the column 210 into the sleeve 220 at different depths. Both the column 210 and the sleeve 220 have positioning holes on their side walls. When the column 210 is inserted into the sleeve 220 at a certain depth, a positioning pin 230 passes through the positioning hole to fix the column 210 and the sleeve 220 together, thereby fixing the camera 500 at a certain height.

[0052] Of course, in other embodiments, the relative position between the column 210 and the sleeve 220 can also be adjusted by a hydraulic cylinder. There are no specific limitations, as long as the second adjustment component 200 can move along the second direction to adjust the position of the camera 500.

[0053] In one possible implementation, combining Figure 3 and Figure 4As shown, the first adjustment component 100 includes a movable block 110, a guide rod 120, and a fixing member 130. The movable block 110 is slidably disposed on the base 400 and is connected to the second adjustment component 200. The guide rod 120 extends along a first direction and is disposed parallel to each other on the base 400. The guide rod 120 passes through the movable block 110. The fixing member 130 is connected to the movable block 110 and is used to allow the movable block 110 to move lockably along the extension direction of the base 400.

[0054] It is understood that the movable block 110 can be connected to the second adjustment component 200. When the movable block 110 moves, it can drive the second adjustment component 200 to move, thereby driving the camera 500 to move, thus adjusting the position of the camera 500 so as to take pictures of the detection points at different positions and thus perform stress testing.

[0055] Specifically, in combination Figure 3 and Figure 4 As shown, the bottom of the movable block 110 has a slot that is adapted to the base 400. The slot is engaged with the base 400, so that the movable block 110 is connected to the base 400 and can move along the extension direction (i.e., the first direction) of the base 400. The movable block 110 is provided with a fixing member 130, which is used to fix the movable block 110 to a certain position on the base 400. The fixing member 130 can be a fixing bolt. When the movable block 110 reaches the designated position and needs to be fixed, the fixing bolt can be tightened so that the fixing bolt abuts against the side wall of the base 400, thereby fixing the position of the movable block 110.

[0056] Reference Figure 4 As shown, multiple guide rods 120 parallel to the base 400 can be provided. The guide rods 120 pass through the moving block 110 to guide the moving block 110 to move along its extension direction and prevent the moving block 110 from deviating.

[0057] In one possible implementation, reference is made to Figure 1 , Figure 3 and Figure 4 As shown, it also includes an anti-slip pad 700, which is disposed on the bottom surface of the base 400. It is understood that the adjustable bracket is disposed on the support surface, and the base 400 contacts the support surface to fix and support the entire adjustable bracket. The anti-slip pad 700 can be disposed on the side of the base 400 that contacts the support surface to increase friction. When at least one of the first adjustment component 100, the second adjustment component 200, and the third adjustment component 300 moves, it prevents the base 400 from moving, thus avoiding the entire adjustable bracket from tipping over.

[0058] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An adjustable support for DIC stress testing, characterized in that, include: A base (400) extending along a first direction; A first adjustment component (100) is disposed on the base (400) and is movable along the first direction; A second adjustment component (200) is connected to the first adjustment component (100) and is movable in a second direction; A third adjustment component (300) is connected to the second adjustment component (200), and a camera (500) for DIC stress testing is movably connected to the third adjustment component (300). At least a portion of the third adjustment component (300) is arc-shaped to adjust the shooting angle of the camera (500).

2. The adjustable bracket for DIC stress testing according to claim 1, characterized in that, The third adjustment component (300) includes a slide rail (310), a slider (320), and a locking member (330). The slide rail (310) is rotatably connected to the second adjustment component (200). The slider (320) is slidably connected to the slide rail (310). The slider (320) has a bearing surface for placing the camera (500). The locking member (330) is connected to the slider (320) and is used to lockably move the slider (320) along the extension direction of the slide rail (310).

3. The adjustable bracket for DIC stress testing according to claim 2, characterized in that, The slide rail (310) is provided with scale lines.

4. The adjustable bracket for DIC stress testing according to claim 2, characterized in that, The slide rail (310) has a groove (311), and the slider (320) has a pulley (321) on the side facing the slide rail (310), and the pulley (321) is installed in the groove (311).

5. The adjustable bracket for DIC stress testing according to claim 2, characterized in that, The slide rail (310) is a C-shaped slide rail, and the locking member (330) is a locking bolt. The locking bolt passes through the slider (320) and abuts against the slide rail (310).

6. The adjustable bracket for DIC stress testing according to claim 2, characterized in that, It also includes a connecting component (600), which includes a connecting block (610), a pin (620), and a limiting member (630). The pin (620) passes through the slide rail (310) and the connecting block (610) in sequence, and the pin (620) is connected to the second adjusting component (200). The limiting member (630) is connected to the pin (620) to fix the slide rail (310).

7. The adjustable bracket for DIC stress testing according to claim 6, characterized in that, The surface of the connecting block (610) is provided with a scale, and the slide rail (310) can rotate relative to the pin (620) and along the scale to adjust the relative position of the slide rail (310) and the second adjustment component (200).

8. The adjustable bracket for DIC stress testing according to claim 1, characterized in that, The second adjustment component (200) includes a column (210) and a sleeve (220). The column (210) extends along the second direction. One end of the column (210) is connected to the third adjustment component (300), and the other end of the column (210) is connected to the sleeve (220). One end of the sleeve (220) is installed on the outer peripheral wall of the column (210), and the other end of the sleeve (220) is connected to the first adjustment component (100). The sleeve (220) moves along the extension direction of the column (210) to adjust the relative height of the column (210).

9. The adjustable bracket for DIC stress testing according to claim 1, characterized in that, The first adjustment component (100) includes a movable block (110), a guide rod (120), and a fixing member (130). The movable block (110) is slidably disposed on the base (400) and connected to the second adjustment component (200). The guide rod (120) extends along the first direction and is disposed parallel to each other on the base (400). The guide rod (120) passes through the movable block (110). The fixing member (130) is connected to the movable block (110) and is used to allow the movable block (110) to move lockably along the extension direction of the base (400).

10. The adjustable bracket for DIC stress testing according to any one of claims 6-9, characterized in that, It also includes an anti-slip pad (700) disposed on the bottom surface of the base (400).