CN219675748U - Self-bearing calibration device - Google Patents
Self-bearing calibration device Download PDFInfo
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- CN219675748U CN219675748U CN202321183309.XU CN202321183309U CN219675748U CN 219675748 U CN219675748 U CN 219675748U CN 202321183309 U CN202321183309 U CN 202321183309U CN 219675748 U CN219675748 U CN 219675748U
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- 238000012360 testing method Methods 0.000 abstract description 49
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a self-bearing calibration device, and belongs to the technical field of material test equipment. Including last jaw seat and lower jaw seat, install two sets of bearing frame down between jaw seat and the last jaw seat, first set of bearing frame is including installing two upper pull rods on the seat of keeping silent and install the lower beam at the upper pull rod lower extreme, and the second set of bearing frame is including installing two lower pull rods on the seat of keeping silent down and installing the entablature on the lower pull rod top down, be provided with the holding down plate on the entablature, install standard sensor on the holding down plate, set up the top board on the standard sensor top, the entablature is pressed on the top board. The utility model can realize the on-site calibration and calibration of the single-space universal testing machine without disassembling the machine force value, effectively improve the calibration and calibration efficiency of the single-space universal testing machine force value, improve the calibration and calibration precision of the testing machine force value, lighten the labor intensity and reduce the cost.
Description
Technical Field
The utility model relates to the technical field of material test equipment, in particular to a self-bearing calibration device.
Background
Laboratory test items and detection tasks are increased year by year, conventional testers are widely popularized and applied, and large laboratories are generally provided with a plurality of testers with different functions and specifications. In order to improve test and detection efficiency, conventional test machines gradually develop to a special machine direction, and are classified according to test functions such as stretching, compression, bending and torsion. The single-space universal testing machine is a testing machine which is developed in the special machine development process of the testing machine and is mainly used for tensile tests of steel and other materials, the testing machine adopts a fixed cross beam, a double-acting oil cylinder is reversely arranged on the cross beam of the testing machine in a penetrating way, and a pulling load sensor is arranged between a base of the testing machine and a lower jaw seat. Compared with a universal tester adopting a movable cross beam structure, the single-space universal tester has the advantages of high rigidity, good centering of test pieces, convenient and quick test piece loading and unloading, high test efficiency and the like, is particularly suitable for the linear test piece tensile test of screw steel, steel strands and the like, and is gradually replacing the universal tester of the movable cross beam structure.
Because of adopting the fixed cross beam and the single space structure, the load sensor for measuring the test force is arranged between the lower jaw seat and the base, and is always in a pulling stress state in the test process. The testing machine belongs to a metering device, and after the new machine is installed and debugged, the testing machine can perform formal detection only after being subjected to force value calibration by a qualified metering verification department and issuing a calibration certificate. In subsequent use, the testing machine also receives periodic, aperiodic force value calibration and calibration. At present, each stage of metering and verification departments performs force value calibration and verification on the testing machine on site, basically, the testing machine is pressed to a standard sensor or a dynamometer, and the actual stress direction of the single-space universal testing machine load sensor in operation is a pulling direction which is completely opposite to the stress direction of the standard sensor. In order to calibrate the force value, the current single-space universal testing machine needs to detach the load sensor from the host machine and send the load sensor and the measurement and control unit to a laboratory with a pull-to detection device, and the force value calibration is high in cost, long in period and very inconvenient. Or directly calibrating the compression standard sensor by using the compression standard sensor, wherein the load sensor of the tester is compressed and stressed in the calibration process, and the compression calibration value is used as a drawing precision reference value, so that a certain deviation exists between the actual precision and the compression standard value.
Disclosure of Invention
The utility model aims to solve the field force value calibration and calibration requirements of a single-space universal testing machine, and provides a self-bearing force calibration device which is used as a matched accessory of the testing machine, so that the field non-dismantling force value calibration and calibration of the single-space universal testing machine can be realized, and the problems in the background technology are solved.
The technical scheme adopted by the utility model is as follows:
the utility model provides a self-bearing calibration device, includes jaw seat 01 and lower jaw seat 05, install two sets of bearing frame between jaw seat 05 and the jaw seat 01 down, first set of bearing frame is including installing two upper pull rods 03 and the lower beam 06 of installing the lower end of upper pull rod 03 on the jaw seat 01 down, and the second set of bearing frame is including installing two lower pull rods 07 and the upper beam 02 of installing on lower pull rod 07 top down on jaw seat 05 down, be provided with holding down plate 11 on the lower beam 06, install standard sensor 10 on the holding down plate 11, set up upper pressure plate 09 on the standard sensor 10 top, upper beam 02 presses on upper pressure plate 09.
A lower nut 08 is arranged on the upper pull rod 03 at the lower side of the lower cross beam 06.
An upper nut 04 is arranged on the lower pull rod 07 on the upper side of the upper cross beam 02.
The two sets of bearing frames between the lower jaw seat 05 and the upper jaw seat 01 are nested and installed in a staggered manner.
The upper pull rod 03 is connected to the upper jaw seat 01 in a threaded manner, and the lower pull rod 07 is connected to the lower jaw seat 05 in a threaded manner.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
in the calibration process, the load sensor on the base of the testing machine is always pulled to force and is completely the same as the stressed working condition in the actual working process. According to the utility model, through two sets of bearing frames which are embedded at a certain angle, in a calibration space, the pulling force is converted into the pressing force, and the standard sensor is always pressed by the pressing force and accords with the designed stress direction, so that the calibration and calibration of the force value of the pulling load sensor by pressing the standard sensor or the dynamometer on machine are realized.
After the utility model is applied, the force value calibration and calibration efficiency of the single-space universal tester can be effectively improved, the force value calibration and calibration precision of the tester can be improved, the labor intensity can be reduced, and the cost can be reduced.
The utility model can also realize the pressing test of concrete block test pieces and the like by a single-space universal testing machine which takes the tensile test as the main application.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a single space universal tester embodying the present utility model;
the figure shows: an upper jaw seat 01; an upper cross member 02; an upper tie rod 03; an upper nut 04; a lower jaw seat 05; a lower cross member 06; a lower pull rod 07; a lower nut 08; an upper platen 09; a standard sensor 10; a lower platen 11; a fixed cross beam 12; a column 13; an oil cylinder 14; a test-bed load sensor 15; a base 16.
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. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, 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.
Example 1
As shown in fig. 1-2, the present embodiment provides a self-bearing calibration device, which comprises an upper jaw seat 01 and a lower jaw seat 05, wherein two sets of bearing frames are installed between the lower jaw seat 05 and the upper jaw seat 01, the first set of bearing frames comprise two upper pull rods 03 installed on the upper jaw seat 01 and a lower beam 06 installed at the lower end of the upper pull rods 03, the second set of bearing frames comprise two lower pull rods 07 installed on the lower jaw seat 05 and an upper beam 02 installed at the top of the lower pull rods 07, a lower pressing plate 11 is arranged on the lower beam 06, a standard sensor 10 is installed on the lower pressing plate 11, an upper pressing plate 09 is arranged on the top of the standard sensor 10, and the upper beam 02 is pressed on the upper pressing plate 09. The two sets of bearing frames between the lower jaw seat 05 and the upper jaw seat 01 are nested and staggered for a certain angle.
A lower nut 08 is arranged on the upper pull rod 03 at the lower side of the lower cross beam 06. An upper nut 04 is arranged on the lower pull rod 07 on the upper side of the upper cross beam 02.
The upper pull rod 03 is connected to the upper jaw seat 01 in a threaded manner, and the lower pull rod 07 is connected to the lower jaw seat 05 in a threaded manner.
As shown in fig. 2, the self-bearing calibration device is installed on a single-space universal testing machine, wherein the testing machine consists of a fixed cross beam 12, 4 upright posts 13 and a base 16 to form a fully-closed self-balancing host, an oil cylinder 14 is installed on the fixed cross beam 12 in an inverted penetrating way, a tensile experimental space is formed between an upper jaw seat 01 and a lower jaw seat 05, and a load sensor 15 is installed between the lower jaw seat 05 and the base 16. When the force value calibration is carried out, the piston of the testing machine oil cylinder 14 rises, the testing machine load sensor 15 is pulled to bear the force and is consistent with the design force bearing mode of the load sensor, and the standard sensor 10 arranged in the self-bearing force calibration device is pressed to bear the force and is consistent with the design force bearing direction of the standard sensor or the dynamometer. The self-bearing calibration device realizes the calibration and calibration of the single-space universal testing machine on the mechanical value.
The utility model uses the principle that the upper jaw seat and the lower jaw seat of the testing machine are used as rigid bearing bases, two sets of bearing frames are installed in the stretching space of the testing machine in a staggered and nested way at a certain angle, and a calibration space capable of bearing the pressing force is formed between the upper cross beam and the lower cross beam and is used for installing a standard sensor and an upper pressing plate and a lower pressing plate.
When the testing machine needs to calibrate and calibrate the force value, the parts of the calibrating device can be sequentially installed in the stretching space of the testing machine, and the loading oil cylinder of the testing machine is used as a force source to apply force to the loading sensor and the standard sensor of the testing machine. In the calibration process, a load sensor on the base of the testing machine is always pulled to force and is identical to the stressed working condition in the actual working process. Through two sets of bearing frames which are embedded and installed at a certain angle, in the calibration space, the pulling force is converted into the pressing force, and the standard sensor is always pressed by the pressing force and accords with the designed stress direction, so that the calibration and calibration of the force value of the pulling load sensor by pressing the standard sensor or the dynamometer on the machine are realized.
After the utility model is applied, the force value calibration and calibration efficiency of the single-space universal tester can be effectively improved, the force value calibration and calibration precision of the tester can be improved, the labor intensity can be reduced, and the cost can be reduced.
The utility model can also realize the pressing test of concrete block test pieces and the like by a single-space universal testing machine which takes the tensile test as the main application.
Claims (5)
1. The utility model provides a self-bearing calibration device, includes jaw seat (01) and lower jaw seat (05), its characterized in that, install two sets of bearing frame between jaw seat (05) and the upper jaw seat (01), first set of bearing frame is including installing two pull rod (03) on jaw seat (01) and install lower crossbeam (06) at the lower end of pull rod (03), and second set of bearing frame is including installing two pull rod (07) on jaw seat (05) down and install upper crossbeam (02) on pull rod (07) top down, be provided with holding down plate (11) on holding down plate (06), install standard sensor (10) on holding down plate (11), set up top board (09) on standard sensor (10) top, upper crossbeam (02) are pressed on upper board (09).
2. The self-supporting calibration device according to claim 1, wherein: a lower nut (08) is arranged on the upper pull rod (03) at the lower side of the lower cross beam (06).
3. The self-supporting calibration device according to claim 1, wherein: an upper nut (04) is arranged on the lower pull rod (07) at the upper side of the upper cross beam (02).
4. The self-supporting calibration device according to claim 1, wherein: two sets of bearing frames between the lower jaw seat (05) and the upper jaw seat (01) are nested and installed in a staggered manner.
5. The self-supporting calibration device according to claim 1, wherein: the upper pull rod (03) is connected to the upper jaw seat (01) in a threaded mode, and the lower pull rod (07) is connected to the lower jaw seat (05) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321183309.XU CN219675748U (en) | 2023-05-16 | 2023-05-16 | Self-bearing calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321183309.XU CN219675748U (en) | 2023-05-16 | 2023-05-16 | Self-bearing calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219675748U true CN219675748U (en) | 2023-09-12 |
Family
ID=87927302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321183309.XU Active CN219675748U (en) | 2023-05-16 | 2023-05-16 | Self-bearing calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219675748U (en) |
-
2023
- 2023-05-16 CN CN202321183309.XU patent/CN219675748U/en active Active
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