CN214150277U - Manual loading fine adjustment device for metering and calibrating material testing machine - Google Patents
Manual loading fine adjustment device for metering and calibrating material testing machine Download PDFInfo
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- CN214150277U CN214150277U CN202120177289.XU CN202120177289U CN214150277U CN 214150277 U CN214150277 U CN 214150277U CN 202120177289 U CN202120177289 U CN 202120177289U CN 214150277 U CN214150277 U CN 214150277U
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Abstract
The utility model discloses a manual loading micromatic setting for material testing machine metrological verification, manual loading micromatic setting includes casing, drive mechanism, moving mechanism, locking mechanism, drive mechanism sets up in the inside left side of casing, and moving mechanism sets up in the right-hand side of drive mechanism, and locking mechanism sets up in the outside of moving mechanism; the utility model discloses a manual loading micromatic setting is applicable to the metrological verification process of material testing machine, has stronger practical value, can solve the difficult problem of controlling metrological verification of material testing machine loading rate betterly, avoids because of the great parts overload damage such as standard dynamometer, material testing machine frame that leads to of loading rate and the inaccurate condition emergence of artifical reading material testing machine test force indicating value, and it is more convenient, safety, high efficiency, accuracy to let the metrological verification of material testing machine.
Description
Technical Field
The utility model relates to a metrological verification micromatic setting especially relates to a manual lotus micromatic setting that adds for material testing machine metrological verification, belongs to material testing machine metrological verification technical field.
Background
The material testing machine is a precision instrument for measuring the mechanical properties and the process properties of metal materials, non-metal materials, mechanical parts and the like, and the metering and verification of the material testing machine is one of the important contents of mechanical metering. The metrological verification of the material testing machine is to compare the indicating value of the testing force of a standard instrument (generally a 0.3-grade standard dynamometer) with the indicating value of the testing force of the material testing machine, calculate the indicating value error of the testing force of the material testing machine and further determine whether the metrological verification of the material testing machine is qualified.
The measurement and verification process of a material testing machine commonly used in the field of mechanical measurement comprises the following steps: 1) switching on a power supply of the material testing machine and turning on computer detection software matched with the material testing machine; 2) installing a standard dynamometer sensor between a workbench and a movable cross beam of the material testing machine; 3) connecting a standard dynamometer sensor with a display instrument of a standard dynamometer correctly through a data line, and connecting a power supply; 4) after the test force indication values displayed on the computer detection software of the material testing machine and the display instrument of the standard dynamometer are cleared, starting a metering verification program allocated by the original factory of the material testing machine; 5) the moving beam of the material testing machine moves downwards, and after the moving beam contacts the top surface of the standard dynamometer sensor, the material testing machine applies testing force to the standard dynamometer sensor through the moving beam; 6) when the test force indication value of the standard dynamometer reaches the test force verification point of the material testing machine, the movable beam stops moving, and meanwhile, the standard dynamometer sensor stops applying test force; 7) reading a test force indication value of the material testing machine displayed on computer detection software; 8) reading a test force indication value displayed on a display instrument of a standard dynamometer; 9) and comparing the test force indication value of the material testing machine with the test force indication value of the standard dynamometer to judge whether the test force value of the material testing machine is accurate or not, and finally obtaining the conclusion whether the metering verification of the material testing machine is qualified or not.
In the metering and calibrating process of the common material testing machine, the existing part of the material testing machine cannot accurately control the loading rate per se, for example, the maximum testing force is (100-1000) N, and the material testing machine is used for measuring the non-metal material; in the process of metrological verification of the material testing machine, when the material testing machine applies a testing force to a sensor of a standard dynamometer through a movable beam, the standard dynamometer and a frame of the material testing machine are easily damaged due to overload because the loading rate of the material testing machine is high, and the condition that the indication value of the testing force of the material testing machine is read manually is easy to cause inaccuracy, so that the metrological verification accuracy of the material testing machine is greatly influenced.
Therefore, in order to solve the problem that the loading rate is difficult to control and test during the metering and testing of part of the material testing machine, a fine adjustment device capable of applying a testing force to the material testing machine through manual control needs to be developed urgently, so that the metering and testing of the material testing machine are more convenient, safe, efficient and accurate.
SUMMERY OF THE UTILITY MODEL
In order to solve the shortcomings existing in the technology, the utility model provides a manual loading fine adjustment device for material testing machine metering verification.
In order to solve the technical problem, the utility model discloses a technical scheme is: a manual loading fine adjustment device for metering and calibrating a material testing machine comprises a shell, a transmission mechanism, a moving mechanism and a locking mechanism, wherein the transmission mechanism is arranged on the left side in the shell, the moving mechanism is arranged on the right side of the transmission mechanism, and the locking mechanism is arranged on the outer side of the moving mechanism;
the transmission mechanism comprises a bevel gear shaft, a first gear shaft and a second gear shaft, and the bevel gear shaft, the first gear shaft and the second gear shaft are sequentially and transversely arranged side by side from bottom to top; the bevel gear a of the bevel gear shaft is positioned at the right end of the bevel gear shaft; the first gear of the first gear shaft is positioned at the left part of the first gear shaft; a second gear of the second gear shaft is positioned at the right end of the second gear shaft; a gear a corresponding to the first gear is fixedly arranged on the bevel gear shaft, and the gear a is meshed with the first gear; a gear b corresponding to the second gear is fixedly arranged on the first gear shaft and meshed with the second gear; the left end of the bevel gear shaft extends outwards out of the shell and is provided with a large loading hand wheel, and the left end of the second gear shaft extends outwards out of the shell and is provided with a small loading hand wheel;
the moving mechanism comprises a bevel gear b, a screw rod shaft and a moving platform, and the screw rod shaft is vertically arranged inside the shell; the bevel gear b is fixedly arranged at the lower part of the screw shaft and corresponds to the bevel gear a in position, and the bevel gear b is meshed with the bevel gear a; the upper part of the screw shaft is connected with a screw nut sleeve in a threaded fit manner; the movable platform is fixedly arranged at the upper end of the screw rod nut sleeve; the lower part of the screw rod nut sleeve is provided with a key groove;
the locking mechanism comprises a locking hand wheel, a connecting screw rod and a flat key, and the flat key is arranged in a key groove of the screw rod nut sleeve; the flat key is provided with a threaded hole; the right part of the shell is provided with a vertical movable hole groove; one end of the connecting screw rod is fixedly connected with the locking hand wheel, the other end of the connecting screw rod penetrates through the movable hole groove and then is inserted into the threaded hole of the flat key, and the connecting screw rod is in threaded fit connection with the flat key.
Furthermore, a limiting plate is fixedly arranged at the upper end of the screw shaft; and the inner wall of the screw rod nut sleeve is correspondingly provided with a limiting step matched with the limiting plate.
The utility model discloses a manual loading micromatic setting is applicable to the metrological verification process of material testing machine, has stronger practical value. The utility model discloses a manual loading micromatic setting can solve the material testing machine among the prior art better and add the difficult problem of control examination of the rate of loading in the metrological verification process, use manual loading micromatic setting to carry out the slow speed and add the lotus and finely tune, can avoid because of adding the great standard dynamometer that leads to of rate, parts overload damage such as material testing machine frame and the inaccurate condition of experimental power indicating value of artifical reading material testing machine take place, it is more convenient to let the metrological verification of material testing machine, safety, high efficiency, it is accurate.
Drawings
Fig. 1 is a schematic structural view of the manual loading fine adjustment device of the present invention.
Fig. 2 is a left side view of the manual loading fine adjustment device (the loading large hand wheel and the loading small hand wheel are not shown).
Fig. 3 is a right side view of the manually loaded fine adjustment device.
Fig. 4 is a side view of a manually loaded vernier device.
FIG. 5 is a schematic diagram of the position relationship between the manual loading fine-tuning device and the material testing machine.
Fig. 6 is a partially enlarged view of the latch mechanism of fig. 1.
In the figure: 1. a housing; 2. a bevel gear shaft; 3. a first gear shaft; 4. a second gear shaft; 5. a gear a; 6. a bevel gear a; 7. a first gear; 8. a gear b; 9. a second gear; 10. loading a large hand wheel; 11. loading a small hand wheel; 12. a bevel gear b; 13. a screw shaft; 14. a screw rod nut sleeve; 15. a mobile platform; 16. a limiting plate; 17. locking a hand wheel; 18. connecting a screw rod; 19. a flat bond; 20. a keyway; 21. a movable hole groove; 22. a limiting step; 23. a base; 24. a work table; 25. a manual loading fine adjustment device; 26. a standard dynamometer sensor; 27. moving the beam; 28. a material testing machine sensor; 29. a material testing machine base; 30. an upper beam of the material testing machine; 31. a material testing machine load frame; 32. a computer host; 33. a computer display; 34. a standard dynamometer display instrument;
A. a jacking surface a; B. a pressing surface b;
alpha, a test force indication value of a material testing machine; beta, standard dynamometer test force indication value.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 4, a manual loading fine adjustment device for metrological verification of a material testing machine comprises a shell 1, a transmission mechanism, a moving mechanism and a locking mechanism, wherein the transmission mechanism is arranged on the left side in the shell 1, the moving mechanism is arranged on the right side of the transmission mechanism, and the locking mechanism is arranged on the outer side of the moving mechanism;
the transmission mechanism comprises a bevel gear shaft 2, a first gear shaft 3 and a second gear shaft 4, wherein the bevel gear shaft 2, the first gear shaft 3 and the second gear shaft 4 are sequentially and transversely arranged side by side from bottom to top; the bevel gear a6 of the bevel gear shaft 2 is located at the right end thereof; the first gear 7 of the first gear shaft 3 is positioned at the left part of the first gear shaft; the second gear 9 of the second gear shaft 4 is positioned at the right end; a gear a5 corresponding to the first gear 7 is fixedly arranged on the bevel gear shaft 2, and the gear a5 is meshed with the first gear 7; a gear b8 corresponding to the second gear 9 is fixedly arranged on the first gear shaft 3, and the gear b8 is meshed with the second gear 9; the left end of the bevel gear shaft 2 extends outwards out of the shell 1 and is provided with a loading large hand wheel 10, and the left end of the second gear shaft 4 extends outwards out of the shell 1 and is provided with a loading small hand wheel 11;
the moving mechanism comprises a bevel gear b12, a screw shaft 13 and a moving platform 15, wherein the screw shaft 13 is vertically arranged inside the shell 1; the bevel gear b12 is fixedly arranged at the lower part of the screw shaft 13 and corresponds to the bevel gear a6, and the bevel gear b12 is meshed with the bevel gear a 6; the upper part of the screw shaft 13 is connected with a screw nut sleeve 14 through thread matching; the movable platform 15 is fixedly arranged at the upper end of the feed screw nut sleeve 14; the lower part of the feed screw nut sleeve 14 is provided with a key groove 20; a limiting plate 16 is fixedly arranged at the upper end of the screw shaft 13; the inner wall of the feed screw nut sleeve 14 is correspondingly provided with a limiting step 22 matched with the limiting plate 16, and when the feed screw nut sleeve moves upwards until the limiting step is contacted with the limiting plate, the limiting plate fixed at the upper end of the feed screw shaft limits the limiting step, so that the lifting height of the moving platform is limited.
The locking mechanism can lock the manual loading fine-adjustment device and comprises a locking hand wheel 17, a connecting screw rod 18 and a flat key 19, wherein the flat key 19 is arranged in a key groove 20 of a screw rod nut sleeve; the flat key 19 is provided with a threaded hole; the right part of the shell 1 is provided with a vertical movable hole groove 21; one end of the connecting screw rod 18 is fixedly connected with the locking hand wheel 17, the other end of the connecting screw rod passes through the movable hole groove 21 and then is inserted into the threaded hole of the flat key 19, and the connecting screw rod 18 is in threaded fit connection with the flat key 19.
As shown in fig. 6, when the locking mechanism is used to lock the manual loading fine adjustment device, the locking hand wheel 17 is pushed leftwards to push the left end of the connecting screw rod against the pressing surface a (i.e. the inner wall of the key groove 20), the locking hand wheel 17 is rotated, the locking hand wheel 17 drives the connecting screw rod 18 to rotate, so that the flat key 19 in threaded fit with the connecting screw rod moves rightwards to press the pressing surface b (i.e. the inner wall of the shell 1), the flat key pressing the pressing surface b is relatively static with the shell 1, because the flat key is arranged in the key groove 20 of the screw rod nut sleeve 14, the screw rod nut sleeve 14 is relatively static with the shell 1, and the screw rod nut sleeve 14 cannot drive the moving platform to move upwards and downwards, thereby realizing the locking of the locking;
when the locking of the locking mechanism on the manual loading fine-adjustment device is released, the locking hand wheel 17 is rotated reversely, the locking hand wheel 17 drives the connecting screw rod 18 to rotate reversely to release the pressing of the flat key 19 on the pressing surface b (namely the inner wall of the shell 1), and as the flat key 19 is arranged in the key groove 20 of the screw rod nut sleeve, the flat key 19 can move up and down along with the screw rod nut sleeve 14 and limit the rotation of the screw rod nut sleeve along the horizontal direction, so that the screw rod nut sleeve cannot rotate relative to the shell 1 and can only move up and down, the screw rod nut sleeve can drive the moving platform to move, and the locking mechanism can release the locking of the manual loading fine-adjustment device.
The working method of the manual loading fine adjustment device for the metering verification of the material testing machine comprises the following steps:
i, installation of a manual loading fine adjustment device:
switching on a power supply of the material testing machine and turning on computer detection software matched with the material testing machine, wherein the computer detection software can display a test force indication value of the material testing machine;
starting the material testing machine, quickly adjusting the distance between a movable beam 27 of the material testing machine and a workbench 24 of the material testing machine, and ensuring that the distance between the top of a standard force measuring instrument sensor and the bottom of the movable beam is 20-30 mm after a manual loading fine-adjustment device 25 and the standard force measuring instrument sensor 26 are installed;
as shown in fig. 5, the manual loading fine-tuning device 25 is fixedly installed on the workbench 24, the standard load cell sensor 26 is fixed on the moving platform 15 of the manual loading fine-tuning device, the moving beam 27 of the material testing machine is kept to be stationary, and the sensor 28 of the material testing machine is positioned at the bottom of the moving beam 27; after being fixed, the components are sequentially provided with a workbench 24, a manual loading fine adjustment device 25, a standard dynamometer sensor 26, a material testing machine sensor 28 and a movable beam 27 from bottom to top, and the components are kept on the same axis from top to bottom;
the standard dynamometer sensor 26 is properly connected with the standard dynamometer display instrument 34 through a data line, and the power supply is switched on; after the computer detection software of the material testing machine and the test force indication value displayed on the display instrument of the standard dynamometer are reset, a measurement and control system of the material testing machine is abandoned, and a manual loading fine-tuning device is used for applying test force to finish the metrological verification of the test force of the material testing machine;
II, metrological verification of the test force of the material testing machine:
firstly, clockwise rotating an loading large hand wheel 10, and rotating the loading large hand wheel 10 to drive a bevel gear shaft 2 to rotate, so that a bevel gear a rotates to drive a bevel gear b meshed with the bevel gear a to rotate; the bevel gear b rotates to drive the screw rod shaft to rotate; at the moment, the locking mechanism is in an unlocked state, under the action of the locking mechanism, the flat key in the key groove limits the screw rod nut sleeve, so that the screw rod nut sleeve in threaded fit with the screw rod shaft cannot rotate along with the screw rod shaft, the screw rod nut sleeve can only move up and down, the moving platform is driven to move through the screw rod nut sleeve, and the purpose that the moving platform 15 is driven to quickly rise through a loaded large hand wheel is achieved, as shown by dotted lines in fig. 2 and 3; the mobile platform rises to drive the standard dynamometer sensor 26 placed on the mobile platform to rise rapidly; the distance between the standard force measuring instrument sensor and the material testing machine sensor 28 positioned at the bottom of the movable beam is gradually reduced until the standard force measuring instrument sensor is contacted with the material testing machine sensor, then the slow loading and fine adjustment control is carried out by using the loading small hand wheel 11, the loading small hand wheel is rotated clockwise, the loading small hand wheel drives the second gear shaft to rotate, so that the second gear rotates, thereby driving the gear b meshed with the second gear to rotate, because the gear b is fixed on the first gear shaft, thereby driving the first gear shaft and the first gear thereon to rotate, and further driving the gear a meshed with the first gear to rotate, because the gear a is fixed on the bevel gear shaft, the bevel gear shaft and the bevel gear a on the bevel gear shaft are driven to rotate, and the lead screw shaft is driven to rotate by driving the bevel gear b meshed with the bevel gear a, so that the moving of the lead screw nut sleeve is realized to drive the moving platform to move; the small loading hand wheel drives the screw rod nut sleeve 14 to ascend through a transmission mechanism so as to drive the moving platform 15 to ascend to cause an axial force in the vertical direction, so that a test force is applied to a material testing machine sensor and a standard dynamometer sensor at the same time;
the utility model discloses a manual loading micromatic setting sets up the number of teeth of No. two gears and is less than the number of teeth of gear b, and the number of teeth of No. one gear is less than the number of teeth of gear a, so rotate the little hand wheel of loading and realize two-stage drive ratio increase after No. two gears and gear b transmission, a gear and gear a transmission to can carry out slow speed loading and fine setting control through the little hand wheel of loading; the utility model discloses a little hand wheel of loading passes through drive mechanism and drives the axial force that 14 rises of screw nut cover arouse the vertical direction, come to exert experimental power to material testing machine sensor and standard dynamometer sensor simultaneously, can realize loading at a slow speed and fine setting, avoid carrying out the calibration process to the material testing machine because of the great standard dynamometer that leads to of loading rate, parts such as material testing machine frame take place the inaccurate condition of overload damage and the artifical experimental power indicating value of reading material testing machine.
When the indicated value of the test force on the display instrument 34 of the standard dynamometer reaches the test force detection point of the material testing machine, the locking mechanism is used for locking the manual loading fine adjustment device, and further the test force applied by the manual loading fine adjustment device is locked, so that the test forces corresponding to the material testing machine and the standard dynamometer are prevented from falling back, and the condition that the read indicated value of the test force of the material testing machine is not accurate is avoided; after the test force indication values corresponding to the material testing machine and the standard dynamometer are stable, reading the test force indication value of the material testing machine displayed on the computer detection software, and reading the test force indication value of the standard dynamometer displayed on the standard dynamometer display instrument 34;
and comparing the test force indication value of the material testing machine with the test force indication value of the standard dynamometer to judge whether the test force value of the material testing machine is accurate or not, and finally obtaining the conclusion whether the metering verification of the material testing machine is qualified or not.
The utility model discloses a manual loading micromatic setting is applicable to the metrological verification process of material testing machine, has stronger practical value. The utility model discloses a manual loading micromatic setting can solve the material testing machine among the prior art better and add the difficult problem of control examination difficulty of loading rate in the metrological verification process, use manual loading micromatic setting to add the loading and can avoid because of the great standard dynamometer that leads to of loading rate, the condition emergence of parts overload damage such as material testing machine frame, and avoid the inaccurate condition of artifical reading material testing machine test force indicating value to take place, it is more convenient to let the metrological verification of material testing machine, safety, high efficiency, accuracy.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (2)
1. The utility model provides a manual loading micromatic setting for material testing machine metrological verification which characterized in that: the device comprises a shell (1), a transmission mechanism, a moving mechanism and a locking mechanism, wherein the transmission mechanism is arranged on the left side in the shell (1), the moving mechanism is arranged on the right side of the transmission mechanism, and the locking mechanism is arranged on the outer side of the moving mechanism;
the transmission mechanism comprises a bevel gear shaft (2), a first gear shaft (3) and a second gear shaft (4), wherein the bevel gear shaft (2), the first gear shaft (3) and the second gear shaft (4) are sequentially and transversely arranged side by side from bottom to top; the bevel gear a (6) of the bevel gear shaft (2) is positioned at the right end of the bevel gear shaft; the first gear (7) of the first gear shaft (3) is positioned at the left part of the first gear shaft; a second gear (9) of the second gear shaft (4) is positioned at the right end of the second gear shaft; the bevel gear shaft (2) is fixedly provided with a gear a (5) corresponding to the first gear (7), and the gear a (5) is meshed with the first gear (7); a gear b (8) corresponding to the second gear (9) is fixedly arranged on the first gear shaft (3), and the gear b (8) is meshed with the second gear (9); the left end of the bevel gear shaft (2) extends outwards out of the shell (1) and is provided with a loading large hand wheel (10), and the left end of the second gear shaft (4) extends outwards out of the shell (1) and is provided with a loading small hand wheel (11);
the moving mechanism comprises a bevel gear b (12), a screw shaft (13) and a moving platform (15), and the screw shaft (13) is vertically arranged inside the shell (1); the bevel gear b (12) is fixedly arranged at the lower part of the screw shaft (13) and corresponds to the bevel gear a (6), and the bevel gear b (12) is meshed with the bevel gear a (6); the upper part of the screw shaft (13) is connected with a screw nut sleeve (14) in a threaded fit manner; the moving platform (15) is fixedly arranged at the upper end of the feed screw nut sleeve (14); a key groove (20) is formed in the lower part of the feed screw nut sleeve (14);
the locking mechanism comprises a locking hand wheel (17), a connecting screw rod (18) and a flat key (19), and the flat key (19) is arranged in a key groove (20) of the screw rod nut sleeve; the flat key (19) is provided with a threaded hole; a vertical movable hole groove (21) is formed in the right part of the shell (1); one end of the connecting screw rod (18) is fixedly connected with the locking hand wheel (17), the other end of the connecting screw rod penetrates through the movable hole groove (21) and then is inserted into the threaded hole of the flat key (19), and the connecting screw rod (18) is in threaded fit connection with the flat key (19).
2. The manual loading fine-tuning device for the metrological verification of materials testing machines of claim 1, characterized in that: a limiting plate (16) is fixedly arranged at the upper end of the screw shaft (13); and the inner wall of the feed screw nut sleeve (14) is correspondingly provided with a limiting step (22) matched with the limiting plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177289.XU CN214150277U (en) | 2021-01-22 | 2021-01-22 | Manual loading fine adjustment device for metering and calibrating material testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177289.XU CN214150277U (en) | 2021-01-22 | 2021-01-22 | Manual loading fine adjustment device for metering and calibrating material testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN214150277U true CN214150277U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120177289.XU Withdrawn - After Issue CN214150277U (en) | 2021-01-22 | 2021-01-22 | Manual loading fine adjustment device for metering and calibrating material testing machine |
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| CN (1) | CN214150277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730138A (en) * | 2021-01-22 | 2021-04-30 | 王斌 | Manual loading fine adjustment device and method for metering and calibrating material testing machine |
-
2021
- 2021-01-22 CN CN202120177289.XU patent/CN214150277U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730138A (en) * | 2021-01-22 | 2021-04-30 | 王斌 | Manual loading fine adjustment device and method for metering and calibrating material testing machine |
| CN112730138B (en) * | 2021-01-22 | 2024-05-24 | 王斌 | Manual loading fine adjustment device and method for metering verification of material testing machine |
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