CN223021712U - A precise measuring device for the elongation after fracture of a rod-shaped specimen - Google Patents
A precise measuring device for the elongation after fracture of a rod-shaped specimen Download PDFInfo
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- CN223021712U CN223021712U CN202421763283.0U CN202421763283U CN223021712U CN 223021712 U CN223021712 U CN 223021712U CN 202421763283 U CN202421763283 U CN 202421763283U CN 223021712 U CN223021712 U CN 223021712U
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Abstract
The utility model provides a precise measuring device for the elongation after breaking of a rod-shaped sample, which comprises a base, a frame, a sample carrying platform, a supporting device, a slide way and a measuring ruler, wherein the frame is arranged on the base and comprises a first supporting frame and a second supporting frame, the sample carrying platform is arranged on the first supporting frame and the second supporting frame, the two broken samples are respectively arranged on the sample carrying platforms on two sides, the fracture parts of the two samples on the two sides are in butt joint and alignment, the supporting device is arranged on the frame and positioned below the samples and is used for supporting the fracture parts of the samples, the measuring ruler is arranged on the slide way, and the two sides of the slide way are arranged on the first supporting frame and the second supporting frame. The utility model can precisely align two fracture, apply proper axial load and rely on the measuring tool carried by the equipment, thereby ensuring the accuracy and the measuring efficiency of the measuring result.
Description
Technical Field
The utility model relates to the technical field of mechanical property detection of metal materials, in particular to an accurate measuring device for elongation after fracture of a rod-shaped sample.
Background
The tensile test is an important method for evaluating the performances of the metal material such as strength, elongation, shrinkage and the like under different working conditions. The rod-like test piece is one of the basic sample shapes of the tensile test piece. The rod-shaped sample has the advantages of convenience in processing, avoidance of structural influence and easiness in surface subsequent treatment. However, the rod-shaped sample is generally in a ladder structure, and the alignment of the fracture after the tensile fracture is difficult, which can lead to inaccurate elongation measurement results and influence the tensile result measurement. Therefore, the device capable of accurately measuring the elongation after break has important engineering significance for the tensile test. The existing measurement method basically relies on manual alignment of test samples by experimenters for measurement, and has the following defects:
1. when the hand-held sample is used for measuring the post-break gauge length, the operator is possibly unskilled, and the measurement efficiency is further affected.
2. Even if two broken samples are successfully held and aligned by hands, a certain degree of different axes of the two broken samples exist possibly due to non-uniform manpower, and the authenticity of the gauge length after the broken samples are measured is affected.
3. The hand-held test specimen cannot be accurately aligned with two interruptions, or the force applied to align the two interruptions is uneven, resulting in a greater gauge length after the measurement of the interruptions.
4. Additional vernier caliper measurements were used after manual alignment, each person using a different degree of caliper proficiency and a non-parallel caliper with the sample, resulting in different caliper readings and resulting in a deviation in the measurement results.
Disclosure of utility model
According to the technical problem, the accurate measuring device for the elongation after breaking of the rod-shaped sample is provided. The device can accurately align two fractures, apply proper axial load and rely on a measuring tool carried by the equipment, thereby ensuring the accuracy and the measuring efficiency of a measuring result.
The utility model adopts the following technical means:
The accurate measuring device for the elongation after breaking of the rod-shaped sample comprises a base, a frame, sample carrying platforms, a supporting device, a slideway and a measuring ruler, wherein the frame is arranged on the base and comprises a first supporting frame and a second supporting frame, the sample carrying platforms are arranged on the first supporting frame and the second supporting frame, the two broken samples are respectively arranged on the sample carrying platforms on two sides, the fracture of the samples on two sides is in butt joint and alignment, the supporting device is arranged on the frame and located below the samples and is used for supporting the fracture of the samples, the measuring ruler is arranged on the slideway, and two sides of the slideway are arranged on the first supporting frame and the second supporting frame.
Further, the supporting device comprises a moving platform and supporting bolts, two sides of the moving platform are respectively arranged in square holes formed in the first supporting frame and the second supporting frame, the lower parts of the supporting bolts are connected to the moving platform, and the top ends of the supporting bolts are in contact with the fracture of the sample.
Further, the supporting device further comprises a sliding block, a sliding groove is formed in the moving platform, the sliding block is slidably connected in the sliding groove, a threaded hole is formed in the sliding block, and the lower portion of the supporting bolt is connected in the threaded hole in a matched mode.
Further, the first support frame and the second support frame are respectively provided with a special-shaped hole, the special-shaped holes are square holes with V-shaped structures on the upper sides, V-shaped grooves are formed in the upper sides of the sample carrying platforms, square structures are formed on the lower sides of the sample carrying platforms, and the sample carrying platforms are tightly connected in the special-shaped holes in a sliding mode and slide along the special-shaped holes.
Further, the first support frame and the second support frame are connected with a jacking bolt in a threaded mode, and the jacking bolts on two sides are screwed into the frame respectively and used for jacking the samples on two sides along the axial direction of the samples.
Further, the measuring ruler is provided with a round hole, the round hole is connected to the slideway in a matched mode and slides along the slideway, round holes are formed in the first supporting frame and the second supporting frame, and two sides of the slideway are connected with the round holes.
Further, the base is connected with the frame through the mortise.
Compared with the prior art, the utility model has the following advantages:
1. The utility model adopts the bolt to tightly prop up, thereby avoiding the problem of poor coaxiality of the handheld broken sample during measurement.
2. The movable sample carrying table is adopted to ensure that samples with different lengths can be measured, and simultaneously ensure the effect that different fracture positions can be supported by the support bolts.
3. The utility model adopts the measuring ruler to slide on the slideway to measure the gauge length of the broken sample, is convenient for measurement, ensures accurate result and avoids error caused by measurement of the hand-held ruler.
4. The utility model adopts the slidable supporting bolt to support the fracture of the broken sample, and can ensure that different fracture positions and different sample sizes can be aligned well.
5. The utility model adopts a rotatable supporting bolt structure, and has better supporting effect on broken samples with different thicknesses and different surface shrinkage rates.
For the reasons, the utility model can be widely popularized in the fields of measurement of elongation after break and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
Fig. 1 is an overall assembly engineering drawing of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is a perspective view of the device of the present utility model.
Fig. 4 is a schematic structural view of the base of the present utility model, wherein (a) is a top view and (b) is a side view.
Fig. 5 is a schematic structural view of the frame of the present utility model, wherein (a) is a side view and (b) is a front view.
Fig. 6 is a schematic structural diagram of the mobile platform according to the present utility model, wherein (a) is a top view and (b) is a side view.
Fig. 7 is a schematic structural view of the support bolt of the present utility model, wherein (a) is a side view and (b) is a front view.
FIG. 8 is a schematic view of a slider according to the present utility model, wherein (a) is a side view and (b) is a side view.
Fig. 9 is a schematic structural view of the sample stage according to the present utility model, wherein (a) is a top view and (b) is a side view.
Fig. 10 is a schematic structural view of the jack bolt of the present utility model, wherein (a) is a side view and (b) is a front view.
FIG. 11 is a schematic view of the structure of a sample according to the present utility model, wherein (a) is a front view and (b) is a side view.
Fig. 12 is a schematic structural view of the slide of the present utility model, in which (a) is a side view and (b) is a front view.
Fig. 13 is a schematic view of the structure of the measuring scale of the present utility model, in which (a) is a front view and (b) is a side view.
In the figure, 1, a base, 2, a frame, 3, a movable platform, 4, a supporting bolt, 5, a sliding block, 6, a sample carrying table, 7, a jacking bolt, 8, a sample, 9, a slideway, 10 and a measuring ruler.
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 of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a device for accurately measuring the elongation after breaking of a rod-shaped sample, which is an accurate device for measuring the elongation after breaking of a rod-shaped tensile breaking sample. The utility model aims to solve the problem of accurate measurement of the elongation of a rod-shaped broken sample, and provides a measuring device which can ensure that two samples are aligned and then coaxial, the alignment of broken sample and fracture is good, the measurement of the broken gauge length is accurate, the structure is simple, and the operation is convenient.
The utility model relates to a precise measuring device for the elongation after breaking of a rod-shaped sample, which comprises a base 1, a frame 2, a moving platform 3, a supporting bolt 4, a sliding block 5, a sample carrying table 6, a jacking bolt 7, a sample 8, a slideway 9 and a measuring ruler 10. The frame 2 is mounted on the base 1, and the base 1 is connected with the frame 2 through a mortise. The frame 2 includes a first support frame and a second support frame arranged at a left-right interval. The frame 2 is tightly connected with the movable platform 3 through square holes, and two sides of the movable platform 3 are respectively arranged in square holes formed in the first support frame and the second support frame. The frame 2 is tightly connected with the sample carrying platform 6 through the V-shaped hole, and the sample carrying platform 6 can slide along the square hole groove. The first support frame and the second support frame are respectively provided with a special-shaped hole, the special-shaped holes are square holes with a V-shaped structure on the upper side, a V-shaped groove is arranged on the upper side of the sample carrying table 6, the square structure is arranged on the lower side of the sample carrying table 6, and the sample carrying table 6 is tightly connected in the special-shaped holes in a sliding mode and slides along the special-shaped holes. The two broken samples 8 are respectively arranged on the sample carrying tables 6 at the two sides, and the fracture of the samples 8 at the two sides are butted and aligned. The frame 2 is connected with the slide way 9 through a circular hole, the first support frame and the second support frame are provided with circular holes, and two sides of the slide way 9 are connected with the circular holes. The moving platform 3 is provided with a square hole groove, and the sliding block 5 can slide along the groove in the through groove (square hole groove). The slide block 5 is provided with a threaded hole, the lower part of the supporting bolt 4 is connected with the slide block through threads, the supporting bolt 4 is positioned right below the sample 8, and the top end of the supporting bolt 4 is contacted with the fracture of the sample 8. The jacking bolts 7 are connected with the frame 2 through threads, the jacking bolts 7 are screwed into the jacking samples 8, wherein the jacking bolts 7 are connected with the first supporting frame and the second supporting frame through threads, the jacking bolts 7 on two sides are screwed into the frame 2 respectively, and the samples 8 on two sides are jacked along the axial direction of the samples 8. The measuring ruler 10 comprises a round hole, the round hole is connected to the slideway 9 in a matched mode, and the measuring ruler 10 can slide along the measuring slideway 9. The measuring scale 10 is located above one side of the sample 8.
1. In order to avoid the traditional measurement of elongation after breaking in-process, the holding force of the sample is different by holding, the broken sample is inaccurate in measurement due to bending phenomenon in the center, the broken sample is aligned on the sample carrying table 6, the sample is tightly propped by the jacking bolts 7, coaxiality of the aligned sample is further guaranteed, and accuracy of measuring elongation after breaking is improved.
2. In order to ensure that the elongation after the fracture is measured conveniently and accurately, a measuring ruler 10 is adopted to mark the first point, and then the measuring slideway 9 slides to the tail point, so that the fracture length of the fracture sample 8 is obtained.
3. The sample carrying table 6 is tightly matched with the frame 2, and the sample carrying table 6 can slide on the frame 2, so that samples with different lengths can be supported by the sample carrying table 6, and the relative positions of the sample carrying table 6 and the samples 8 can be ensured.
4. The lower side of the sample 8 is supported by the support bolts 4, the support bolts 4 are connected with the movable platform 3 by the sliding blocks 5, and the support bolts 4 can be supported to different fracture positions along with the sliding of the sliding blocks 5 on the movable platform 3, so that the coaxiality of broken samples is guaranteed.
The measuring method of the utility model comprises the following steps:
1. During measurement, the sample 8 is placed in the sample carrying table 6, the state of the sample 8 is adjusted, the fracture of the sample 8 is aligned, and the marked point faces the visual direction.
2. The support bolt 4 is slid to the fracture position, and the support bolt 4 is screwed upwards, so that the fracture is supported.
3. The jacking bolts 7 are screwed tightly, and proper pressure is applied to the two ends of the broken sample, so that the broken sample can be guaranteed to have good coaxiality.
4. And sliding the measuring scale 10, placing a marked point of the measuring scale 10 at a first point position of the gauge length of the sample 8, and resetting the numerical value of the measuring scale 10.
5. And sliding the measuring ruler 10 to the position of the other point of the gauge length, wherein the reading of the measuring ruler 10 is the accurate measurement value of the gauge length after the sample 8 is broken.
6. The elongation after breaking of sample 8 was calculated.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model.
Claims (7)
1. The rod-shaped sample after-breaking elongation accurate measurement device is characterized by comprising a base (1), a frame (2), a sample carrying table (6), a support device, a slide rail (9) and a measuring ruler (10), wherein the frame (2) is arranged on the base (1) and comprises a first support frame and a second support frame, the sample carrying table (6) is arranged on the first support frame and the second support frame, the two broken samples (8) are respectively arranged on the sample carrying tables (6) on two sides, the fracture joints of the samples (8) on two sides are in butt joint and alignment, the support device is arranged on the frame (2) and located below the samples (8) and used for supporting the fracture joint of the samples (8), the measuring ruler (10) is arranged on the slide rail (9), and two sides of the slide rail (9) are arranged on the first support frame and the second support frame.
2. The rod-shaped sample post-fracture elongation accurate measurement device according to claim 1, wherein the support device comprises a moving platform (3) and support bolts (4), two sides of the moving platform (3) are respectively arranged in square holes formed in the first support frame and the second support frame, the lower parts of the support bolts (4) are connected to the moving platform (3), and the top ends of the support bolts (4) are in contact with a fracture of a sample (8).
3. The rod-shaped sample post-breaking elongation accurate measurement device according to claim 2, wherein the support device further comprises a sliding block (5), a sliding groove is formed in the moving platform (3), the sliding block (5) is slidably connected in the sliding groove, a threaded hole is formed in the sliding block (5), and the lower portion of the support bolt (4) is connected in the threaded hole in a matched mode.
4. The accurate measuring device for the elongation after breaking of the rod-shaped sample according to claim 1 is characterized in that special-shaped holes are formed in the first support frame and the second support frame, the special-shaped holes are square holes with a V-shaped structure on the upper side, a V-shaped groove is formed in the upper side of the sample carrying table (6), a square structure is formed in the lower side of the sample carrying table, and the sample carrying table (6) is tightly connected in the special-shaped holes in a sliding mode and slides along the special-shaped holes.
5. The rod-shaped sample post-breaking elongation accurate measurement device according to claim 1, wherein the first support frame and the second support frame are both in threaded connection with a jacking bolt (7), and the two-side jacking bolts (7) are respectively screwed into the frame (2) and are used for jacking the samples (8) at two sides along the axial direction of the samples (8).
6. The rod-shaped sample after-break elongation accurate measurement device according to claim 1 is characterized in that the measurement ruler (10) is provided with a round hole, the round hole is connected to the slideway (9) in a matched mode and slides along the slideway (9), round holes are formed in the first support frame and the second support frame, and two sides of the slideway (9) are connected with the round holes.
7. The device for accurately measuring the elongation after breaking of a rod-shaped sample according to claim 1, wherein the base (1) is connected with the frame (2) through a mortise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421763283.0U CN223021712U (en) | 2024-07-24 | 2024-07-24 | A precise measuring device for the elongation after fracture of a rod-shaped specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421763283.0U CN223021712U (en) | 2024-07-24 | 2024-07-24 | A precise measuring device for the elongation after fracture of a rod-shaped specimen |
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| Publication Number | Publication Date |
|---|---|
| CN223021712U true CN223021712U (en) | 2025-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421763283.0U Active CN223021712U (en) | 2024-07-24 | 2024-07-24 | A precise measuring device for the elongation after fracture of a rod-shaped specimen |
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| CN (1) | CN223021712U (en) |
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- 2024-07-24 CN CN202421763283.0U patent/CN223021712U/en active Active
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