CN219915139U - Quick test positioner after tensile test breaks - Google Patents
Quick test positioner after tensile test breaks Download PDFInfo
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- CN219915139U CN219915139U CN202320939581.XU CN202320939581U CN219915139U CN 219915139 U CN219915139 U CN 219915139U CN 202320939581 U CN202320939581 U CN 202320939581U CN 219915139 U CN219915139 U CN 219915139U
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- sliding block
- pedestal
- positioning
- center
- sample
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- 238000009864 tensile test Methods 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000011326 mechanical measurement Methods 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 11
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000007665 sagging Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of mechanical measurement of samples in the field of steel pipe production, and solves the problem of measuring and positioning after a sample is broken, and relates to a quick positioning device for the after-break tensile test, which comprises a pedestal, a left sliding block, a right sliding block, a center, a top, two pressure springs and two locking screws; the middle part of the upper end of the pedestal is provided with a left positioning groove and a right positioning groove along the long side direction, and the two positioning grooves are V-shaped grooves with the same shape; the left sliding block and the right sliding block can be slidably and adjustably arranged on the upper part of the pedestal and are respectively fixed on the pedestal through a set screw; the inner ends of the left sliding block and the right sliding block are respectively provided with a pressure spring mounting hole, and the outer ends of the two pressure springs are respectively fastened in the spring mounting holes at the two ends; the inner ends of the two springs are respectively and fixedly connected with the outer end part of the center and the outer end part of the pressure head; the inner ends of the top head and the top head respectively form a first sample clamping end and a second sample clamping end. The device can realize quick positioning of the sample, is convenient to measure, can improve the measuring precision and has good applicability.
Description
Technical Field
The utility model belongs to the technical field of mechanical measurement of samples in the field of steel pipe production, and particularly relates to a quick test positioning device after a tensile test is broken.
Background
In the manufacture and production of steel pipe products, multiple tests such as mechanics, corrosion and the like are required to be performed on steel pipe samples. The mechanical test is to clamp two ends of a sample on an upper clamping seat and a lower clamping seat of a tensile machine, the lower clamping seat is fixed, the upper clamping seat moves upwards, and tensile force is applied to the sample until the sample is broken.
The test sample for tensile test is usually in three structural forms of round bar, plane block and arc block, and for round bar type test sample, after tensile test sample is carried out, the elongation after break and the area shrinkage rate need to be calculated, and for two structural forms of plane block and arc block, the elongation after break needs to be calculated. To obtain the elongation after fracture, the length of the specimen after fracture needs to be measured, and the end face shrinkage needs to be calculated, and the section diameter after fracture needs to be measured.
Currently, post-break measurements for the three samples are typically performed on a common platform. The specific operation mode is as follows: the fracture opening of the sample was aligned, and the total length of the broken sample and the diameter of the fracture opening were measured by a caliper. The measuring method has the advantages that the measuring of the samples in the plane block shape and the arc block shape is relatively convenient, but for the samples in the round bar shape, because the samples cannot be positioned on the platform, two operators are required to cooperate when the measuring is carried out, one operator fixes the samples, the other operator carries out the measuring, the measuring is troublesome and laborious, in addition, the workpiece is manually fixed, fracture dislocation is easy to occur, and the measuring precision is affected.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the quick positioning device for the tensile test after breakage, which can realize quick positioning of a sample, is convenient to measure, can improve measurement accuracy and has good applicability.
The above object of the present utility model is achieved by the following technical solutions:
a quick positioning device for a tensile test after breaking comprises a pedestal, a left sliding block, a right sliding block, a center, a top, two pressure springs and two locking screws;
the middle part of the upper end of the pedestal is provided with a left positioning groove and a right positioning groove along the long side direction, and the two positioning grooves are V-shaped grooves with the same shape; the left sliding block and the right sliding block can be slidably and adjustably arranged at the upper part of the pedestal and are respectively fixed on the pedestal through a set screw;
the inner ends of the left sliding block and the right sliding block are respectively provided with a pressure spring mounting hole, and the inner ends of the two pressure springs are respectively fastened in the spring mounting holes at the two ends; the outer ends of the two springs are respectively and fixedly connected with the end part of the center and the outer end part of the pressure head; the inner top head of the top and the inner end of the top head respectively form a first sample clamping end and a second sample clamping end.
Guide grooves are symmetrically formed in the front side and the rear side of the upper end of the pedestal; the left sliding block and the right sliding block adopt the same structural form, a V-shaped bulge is arranged in the middle of the lower ends of the two sliding blocks, and the shape of the V-shaped bulge is matched with the shape of a V-shaped groove on the pedestal; the front and rear sides of the lower ends of the two sliding blocks are provided with inward convex guide parts; a threaded through hole is formed in one side of each of the two sliding blocks; v-shaped bulges on the left sliding block are embedded into left positioning grooves on the pedestal, and V-shaped bulges on the right sliding block are embedded into right positioning grooves on the pedestal; the front inner protruding guide parts and the rear inner protruding guide parts of the two sliding blocks are respectively embedded into the guide groove at the front side and the guide groove at the rear side of the pedestal, so that the two sliding blocks are in guide fit with the pedestal along the long side direction.
And the center is formed by an external thread section and an internal center section, and the center is fastened and inserted into the inner end of the corresponding pressure spring through the external thread section.
And the plug consists of an external thread section and an internal plug, and the plug is fastened and inserted into the inner end of the corresponding pressure spring through the external thread section.
And the center and the top head are hollow structures.
The utility model has the advantages and positive effects that:
1. according to the utility model, two sections of the broken round bar-shaped sample can be positioned through the left V-shaped groove and the right V-shaped groove at the upper end of the pedestal, and the outer ends of the two sections of samples can be clamped through the center and the top driven by the two sliding blocks, so that the clamping and fixing of the samples can be realized after the fracture of the two sections of samples are matched. By adopting the device, only one operator is needed to finish the measurement of the length after the sample is broken and the diameter of the end face of the sample, thereby saving the manpower, facilitating the measurement operation and improving the measurement precision.
2. The utility model can be suitable for measuring samples with various lengths after fracture by adjusting the positions of the two sliding blocks, and has better applicability.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a left side view of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a perspective view of the present utility model;
FIG. 5 is a front view of the present utility model for round bar type samples;
FIG. 6 is a top view of the present utility model for round bar samples;
FIG. 7 is a perspective view of the present utility model for round bar type samples;
FIG. 8 is a front view of the utility model for a block-type specimen;
FIG. 9 is a top view of the utility model for a block-type specimen;
FIG. 10 is a perspective view of the present utility model for a block-type sample.
Detailed Description
The structure of the present utility model will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.
Referring to fig. 1-4, the utility model relates to a rapid positioning device for tensile test after breaking, which comprises the following components: the device comprises a pedestal 1, a left sliding block 2, a right sliding block 6, a center 4, a plug 5, two compression springs 3 and two locking screws 7.
The pedestal is a cuboid-shaped vertical seat with supporting legs 1.1 arranged at two ends of the lower part. The middle part of the upper end of the pedestal is provided with a left positioning groove 1.2 and a right positioning groove 1.3 along the long side direction, and the left positioning groove and the right positioning groove adopt V-shaped grooves with equal shapes. The left positioning groove is used for positioning the left sliding block, the right positioning groove is used for positioning the right sliding block, and the left positioning groove and the right positioning groove are used for positioning the round bar sample. Guide grooves 1.4 are symmetrically formed in the front side and the rear side of the upper end of the pedestal and are used for forming guide fit with the left sliding block and the right sliding block.
The left sliding block and the right sliding block adopt the same structural form, a V-shaped bulge is arranged in the middle of the lower ends of the two sliding blocks, and the shape of the V-shaped bulge is matched with the shape of the V-shaped groove on the pedestal. The front and rear sides of the lower ends of the two sliding blocks are provided with inward convex guide parts. One side of the two sliding blocks is provided with a threaded through hole for installing a set screw.
The left slider and the right slider are respectively slidably mounted at the upper end of the pedestal, the V-shaped bulge on the left slider is embedded into the left positioning groove on the pedestal, the V-shaped bulge on the right slider is embedded into the right positioning groove on the pedestal, and the two sliders are positioned at the upper end of the pedestal through the cooperation of the V-shaped bulge and the V-shaped groove. The front inner protruding guide parts and the rear inner protruding guide parts of the two sliding blocks are respectively embedded into the guide groove at the front side and the guide groove at the rear side of the pedestal, so that the two sliding blocks are in guide fit with the pedestal along the long side direction. The fixing of the sliders to the stand is achieved by tightening set screws in threaded through holes in the sides of the two sliders.
The inner side of the left sliding block and the inner side of the right sliding block are respectively provided with a pressure spring mounting hole which is used for being matched with the inner end parts of the two pressure springs respectively.
The inner ends of the two compression springs are respectively inserted into compression spring mounting holes of the two sliding blocks. The outer end part of the compression spring on one side is fastened with the outer end of the center in an inserting way, and the inner end of the compression spring on the other side is fastened with the outer end of the center in an inserting way.
The center is composed of an external thread section and an internal center section, and is fastened and inserted into the inner end of the corresponding pressure spring through the external thread section. The top tip of the inner top section is used for being matched with a top hole on the sample to form a first sample clamping end. The center hole is preferably hollow so as to lighten the gravity of the center and avoid sagging caused by the fact that the center is arranged on the pressure spring
The plug is composed of an external thread section and an internal plug, and is fastened and inserted into the inner end of the corresponding pressure spring through the external thread section. The inner end of the inner plug is a plane and is used for being in contact fit with the end face on the sample to form a second sample clamping end. The plug is preferably of a hollow structure so as to lighten the gravity of the plug and avoid sagging caused by the fact that the plug is arranged on the spring.
The two compression springs are compression springs with high strength, so that the problem of sagging cannot occur after the center and the plug are installed.
The quick positioning device for the broken end of the tensile test is adopted to position the round bar-shaped sample, see fig. 5-7, the broken round bar-shaped sample 8 is placed on a pedestal, two sections of samples are respectively positioned through the V-shaped grooves at the left part and the right part, the samples are prevented from rolling on a plane, the two sections of samples are rotated, and the fracture parts 8.1 of the two sections of samples are aligned and matched at the middle plane parts of the two V-shaped grooves; then loosening the two locking screws, moving the two sliding blocks inwards to enable the top tip of the top to be matched with the top hole of the end part of one section of sample close to the top tip, enabling the inner end surface of the top to be in contact with the end surface of the other section of sample close to the top tip, then tightening the two locking screws to fix the two sliding blocks, and at the moment, clamping and positioning the broken round bar-shaped sample at the upper end of the pedestal, and tightly attaching the broken part; then, the distance between the outer end surfaces of the two sections of samples can be measured through a caliper, the calculation of the elongation after fracture is completed later, the diameter of the fracture part is measured through the caliper, and the calculation of the reduction of area is completed later.
It should be noted that: at present, a round bar-shaped sample has a structural form that both ends are provided with tip holes, and also has a structural form that one end is provided with tip holes and the other end is a flat end face. The rapid measuring and positioning device after the tensile test is broken is suitable for round bar-shaped samples in the two structural forms.
The rapid measuring and positioning device for the broken tensile test is used for positioning the block-shaped samples, see fig. 8-10, and the problem that the block-shaped samples cannot roll when measured on the platform is solved, so that the upper end face of the pedestal is used as a placement platform face of the block-shaped samples. When the device is used, according to the length of the broken block-shaped sample 9, the two fastening screws are loosened firstly, and the positions of the two sliding blocks are adjusted, so that the distance between the top tip and the top is larger than the length of the two sections of broken samples which are spliced together; then placing the two sections of the broken samples on the upper end surface of the pedestal to ensure that the fracture parts 9.1 are completely matched; then the distance between the outer end surfaces of the two sections of samples can be measured by a caliper, and the calculation of the elongation after breaking is completed later.
Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.
Claims (5)
1. A quick measuring and positioning device after a tensile test is broken is characterized in that: the device comprises a pedestal, a left sliding block, a right sliding block, a center, a top, two pressure springs and two locking screws;
the middle part of the upper end of the pedestal is provided with a left positioning groove and a right positioning groove along the long side direction, and the two positioning grooves are V-shaped grooves with the same shape; the left sliding block and the right sliding block can be slidably and adjustably arranged at the upper part of the pedestal and are respectively fixed on the pedestal through a set screw;
the inner ends of the left sliding block and the right sliding block are respectively provided with a pressure spring mounting hole, and the outer ends of the two pressure springs are respectively fastened in the spring mounting holes at the two ends; the inner ends of the two springs are respectively and fixedly connected with the end part of the center and the outer end part of the pressure head; the inner top head of the top and the inner end of the top head respectively form a first sample clamping end and a second sample clamping end.
2. The rapid post-failure test positioning device for tensile test according to claim 1, wherein: guide grooves are symmetrically arranged on the front side and the rear side of the upper end part of the pedestal; the left sliding block and the right sliding block adopt the same structural form, a V-shaped bulge is arranged in the middle of the lower ends of the two sliding blocks, and the shape of the V-shaped bulge is matched with the shape of a V-shaped groove on the pedestal; the front and rear sides of the lower ends of the two sliding blocks are provided with inward convex guide parts; a threaded through hole is formed in one side of each of the two sliding blocks; v-shaped bulges on the left sliding block are embedded into left positioning grooves on the pedestal, and V-shaped bulges on the right sliding block are embedded into right positioning grooves on the pedestal; the front inner protruding guide parts and the rear inner protruding guide parts of the two sliding blocks are respectively embedded into the guide groove at the front side and the guide groove at the rear side of the pedestal, so that the two sliding blocks are in guide fit with the pedestal along the long side direction.
3. The rapid post-failure test positioning device for tensile test according to claim 1, wherein: the center is composed of an external thread section and an internal center section, and the center is fixedly inserted into the inner end of the corresponding pressure spring through the external thread section.
4. The rapid post-failure test positioning device for tensile test according to claim 1, wherein: the plug comprises an external thread section and an internal plug, and the plug is fastened and inserted into the inner end of the corresponding pressure spring through the external thread section.
5. The rapid post-failure test positioning device for tensile test according to claim 1, wherein: the center and the top head are hollow structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939581.XU CN219915139U (en) | 2023-04-24 | 2023-04-24 | Quick test positioner after tensile test breaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939581.XU CN219915139U (en) | 2023-04-24 | 2023-04-24 | Quick test positioner after tensile test breaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915139U true CN219915139U (en) | 2023-10-27 |
Family
ID=88432016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320939581.XU Active CN219915139U (en) | 2023-04-24 | 2023-04-24 | Quick test positioner after tensile test breaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915139U (en) |
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2023
- 2023-04-24 CN CN202320939581.XU patent/CN219915139U/en active Active
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