High-precision dynamometer calibration device

Abstract

The utility model provides a high-precision dynamometer calibration device, and relates to the technical field of dynamometer calibration. A high-precision dynamometer calibration device comprises a reference assembly and a force application assembly. The reference assembly comprises a base and a balance rod which is arranged on the base in a centrally rotating mode. The force application assembly comprises telescopic parts symmetrically arranged on the two sides of the balance rod, the fixed ends of the telescopic parts are fixedly connected to the base, the telescopic ends of the telescopic parts are detachably connected with a dynamometer, the dynamometer is detachably connected with the balance rod, a first distance sensor is arranged between the dynamometer and the base, and a second distance sensor is arranged between the base and the base. The first distance sensor is used for monitoring the stroke change of the two dynamometers and the telescopic action of the two telescopic pieces, so that the accuracy and reliability of a measurement result can be ensured when force values of small to microgram level and large to kilogram level are accurately measured and calibrated.

Description

Technical Field

[0001] This application relates to the field of force gauge calibration technology, and more specifically, to a high-precision force gauge calibration device. Background Technology

[0002] In the existing technology, in order to ensure the accuracy of the force gauge, it is necessary to perform calibration periodically. The calibration method usually includes placing the force gauge to be calibrated on a hanging plate and calibrating different test points by loading standard weights, until the calibration is completed.

[0003] However, when it comes to the precise measurement and calibration of forces ranging from micrograms to kilograms, it is not easy to guarantee the accuracy and reliability of the measurement results by adding weights. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a high-precision force gauge calibration device, aiming to improve the problem that existing high-precision force gauge calibration devices, when accurately measuring and calibrating forces ranging from micrograms to kilograms, do not easily guarantee the accuracy and reliability of measurement results by loading weights.

[0005] This application proposes a high-precision force gauge calibration device, comprising: a reference component and a force application component. The reference component includes a base and a balance bar centrally and rotatably mounted on the base. The force application component includes telescopic members symmetrically arranged on both sides of the balance bar. The fixed end of the telescopic member is fixed to the base, and a force gauge is detachably connected to the telescopic end of the telescopic member. The force gauge and the balance bar are detachably connected, and a first distance sensor is provided between the force gauge and the base.

[0006] According to an embodiment of this application, a high-precision force gauge calibration device has the following advantages: a reference force gauge and a force gauge to be calibrated are respectively installed on the telescopic components on both sides of the balance bar. By utilizing the synchronous extension and retraction of the two telescopic components, the same force is applied to the two force gauges. Two first distance sensors at the bottom monitor the descent distance of the two force gauges and ensure that the descent stroke of the two force gauges is the same. Then, the force value displayed on the reference force gauge is used to calibrate the force gauge to be calibrated, so that the force value displayed on the force gauge to be calibrated is the same as the force value displayed on the reference force gauge at this time. This design, by using the first distance sensors to monitor the stroke changes of the two force gauges and the extension and retraction of the two telescopic components, can ensure the accuracy and reliability of the measurement results when accurately measuring and calibrating forces ranging from micrograms to kilograms.

[0007] In addition, a high-precision force gauge calibration device according to an embodiment of this application also has the following additional technical features:

[0008] In some specific embodiments of this application, hooks are fixed to both ends of the balance bar, and the force measuring instrument is suspended from the hooks.

[0009] In some specific embodiments of this application, an adjusting member is provided between the balance bar and the base. The adjusting member includes an adjusting pin, a reference block, and a scale. The adjusting pin is fixed to the position where the balance bar is rotatably connected to the base. The reference block is fixed to the base, and the end of the adjusting pin away from the balance bar points to the reference block. The scale is evenly distributed on one side of the reference block.

[0010] In some specific embodiments of this application, a support plate is fixedly connected to the fixed end of the telescopic member, and the support plate is fixedly connected to the base.

[0011] In some specific embodiments of this application, a mounting plate is fixedly connected to the telescopic end of the telescopic member, and a locking member is provided on the mounting plate.

[0012] In some specific embodiments of this application, the locking member includes two clamping plates, a double-ended screw, and a guide rod. The two clamping plates are symmetrically arranged at the end of the mounting plate away from the telescopic member. The force gauge is located between the two clamping plates, and the first distance sensor is located on the bottom side of the force gauge and fixed to the base. Two mounting seats are rotatably connected to the double-ended screw, and the two mounting seats are symmetrically fixed to the mounting plate. The double-ended screw and the two clamping plates are threadedly connected. Two mounting seats are rotatably connected to the guide rod, and the two mounting seats are symmetrically fixed to the mounting plate. The guide rod is slidably connected to the two clamping plates.

[0013] In some specific embodiments of this application, an anti-slip pad is fixed to the side of the clamping plate facing the force measuring instrument.

[0014] In some specific embodiments of this application, auxiliary components are symmetrically fixed to both sides of the reference block. The auxiliary components include two fixed plates, two second distance sensors, a sliding sleeve, and a slider. The two fixed plates are symmetrically fixed to the side walls of the reference block. The two second distance sensors are symmetrically fixed to the sides of the two fixed plates that are close to each other, and the second distance sensors are located at the positions where the fixed plates extend out of the reference block. The sliding sleeve is slidably sleeved on the adjusting pin. The slider is slidably connected to the reference block, and the slider and the sliding sleeve are rotatably connected. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-precision force gauge calibration device according to an embodiment of this application;

[0017] Figure 2 This is a partial structural schematic diagram of the force-applying component according to an embodiment of this application;

[0018] Figure 3 According to the embodiments of this application Figure 1 Enlarged diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure and position of the auxiliary components according to embodiments of this application.

[0020] Icons: 1. Reference component; 11. Base; 12. Balance bar; 13. Hook; 14. Adjustment component; 141. Adjustment pin; 142. Reference block; 143. Scale; 2. Force gauge; 3. Force application component; 31. Telescopic component; 32. Support plate; 33. Mounting plate; 34. Locking component; 341. Clamping plate; 342. Double-ended screw; 343. Guide rod; 344. Anti-slip pad; 35. First distance sensor; 4. Auxiliary component; 41. Fixing plate; 42. Second distance sensor; 43. Sliding sleeve; 44. Slider. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1, as Figure 1-Figure 4 As shown, a high-precision force gauge calibration device according to an embodiment of this application includes a reference component 1 and a force application component 3.

[0023] The reference component 1 includes a base 11 and a balance bar 12 centrally and rotatably mounted on the base, such as... Figure 1As shown, the balance bar 12 is rotatably connected to the top of the base 11 at its central position. The two ends of the balance bar 12 are symmetrically threaded with fine-tuning screws so that the distance between the two ends of the balance bar 12 and the bottom of the base 11 can be kept the same by changing the extension length of the fine-tuning screws at both ends of the balance bar 12.

[0024] like Figure 1 and Figure 2 As shown, the force application component 3 includes telescopic members 31 symmetrically arranged on both sides of the balance bar 12. The fixed end of the telescopic member 31 is fixed to the base 11. A force measuring instrument 2 is detachably connected to the telescopic end of the telescopic member 31. The force measuring instrument 2 and the balance bar 12 are detachably connected. A first distance sensor 35 is provided between the force measuring instrument 2 and the base 11.

[0025] It should be noted that, in the specific embodiments of this application, the two force gauges 2 are respectively a standard force gauge (i.e., its measurement accuracy is correct) and a force gauge to be calibrated (its measurement accuracy needs to be corrected). The two force gauges 2 are preferably of the same model and size, so as to ensure the calibration accuracy and precision of the calibration device of this application.

[0026] like Figure 1 As shown, hooks 13 are fixed to both ends of the balance bar 12, and the force measuring instrument 2 is suspended from the hooks 13.

[0027] Furthermore, an adjusting member 14 is provided between the balance bar 12 and the base 11. The adjusting member 14 includes an adjusting needle 141, a reference block 142, and a scale 143. The adjusting needle 141 is fixed to the balance bar 12 and rotatably connected to the base 11. The reference block 142 is fixed to the base 11. The end of the adjusting needle 141 away from the balance bar 12 points to the reference block 142. The scale 143 is evenly distributed on one side of the reference block 142.

[0028] Therefore, it can be understood that in the initial stage of use, the position of the adjusting needle 141 at the scale 143 can be used to initially determine whether the balance bar 12 on the base 11 needs to be calibrated.

[0029] Furthermore, a support plate 32 is fixedly connected to the fixed end of the telescopic component 31, and the support plate 32 is fixedly connected to the base 11 to realize the fixed installation of the telescopic component 31 on the base 11.

[0030] It should be noted that a mounting plate 33 is fixedly connected to the telescopic end of the telescopic component 31, and a locking component 34 is provided on the mounting plate 33.

[0031] Among them, such as Figure 2As shown, the locking component 34 includes two clamping plates 341, a double-ended screw 342, and a guide rod 343. The two clamping plates 341 are symmetrically arranged at the end of the mounting plate 33 away from the telescopic component 31. The force gauge 2 is located between the two clamping plates 341, and the first distance sensor 35 is located on the bottom side of the force gauge 2 and fixed to the base 11. Two mounting seats are rotatably connected to the double-ended screw 342, and the two mounting seats are symmetrically fixed to the mounting plate 33. The double-ended screw 342 and the two clamping plates 341 are threadedly connected. Two mounting seats are rotatably connected to the guide rod 343, and the two mounting seats are symmetrically fixed to the mounting plate 33. The guide rod 343 is slidably connected to the two clamping plates 341.

[0032] It can be understood that by rotating the double-headed screw 342, the relative displacement of the two clamping plates 341 can be controlled, thereby achieving the clamping action of the force measuring instrument 2.

[0033] Furthermore, an anti-slip pad 344 is fixed to the side of the clamping plate 341 facing the force measuring instrument 2.

[0034] like Figure 1 and 4 As shown, auxiliary components 4 are symmetrically fixed to both sides of the reference block 142. The auxiliary components 4 include two fixed plates 41, two second distance sensors 42, a sliding sleeve 43, and a slider 44. The two fixed plates 41 are symmetrically fixed to the side walls of the reference block 142. The two second distance sensors 42 are symmetrically fixed to the side of the two fixed plates 41 that are close to each other. The second distance sensors 42 are located at the position where the fixed plates 41 extend out of the reference block 142. The sliding sleeve 43 is slidably sleeved on the adjusting pin 141. The slider 44 is slidably connected to the reference block 142, and the slider 44 and the sliding sleeve 43 are rotatably connected.

[0035] It should be noted that the slider 44 can only slide on the reference block 142. Thus, when the adjusting needle 141 swings, the sliding sleeve 43 will slide on the adjusting needle 141 and force the slider 44 to slide on the reference block 142.

[0036] It can be understood that by monitoring the position of the slider 44 (the change in the distance between the two ends of the slider 44 and the two second distance sensors 42 on both sides) through the two second distance sensors 42, it is determined whether the balance bar 12 needs further precise adjustment on the base 11 to ensure that the distance between the two mounting plates 33 and the corresponding first distance sensor 35 remains the same.

[0037] Specifically, the two force gauges 2 are clamped in the two locking parts 34 respectively, and the top of the force gauge 2 is hung on the hook 13 on its corresponding side. Then, the balance bar 12 is first calibrated by adjusting the position of the adjusting pin 141 at the scale 143. Then, the balance bar 12 is precisely calibrated by monitoring the distance between the slider 44 and the second distance sensor 42 using the second distance sensor 42. This ensures that the distance between the first distance sensors 35 corresponding to the two mounting plates 33 is the same. The telescopic ends of the two telescopic parts 31 extend synchronously and in the same direction by the same distance, applying the same force to the two force gauges 2. The first distance sensor 35 monitors the descent stroke of the mounting plate 33 to ensure that the two force gauges 2 are subjected to the same force value. At this time, the force gauge to be calibrated can be calibrated by referring to the force value displayed on the standard force gauge.

[0038] In Example 2, as in Example 1, the first distance sensor 35 and the second distance sensor 42 can achieve precise measurement of force values ​​from microgram to kilogram levels by utilizing the development of new sensor materials, the design of new sensor structures, and the application of advanced signal processing algorithms. They can accurately capture and convert minute changes in force value; at the same time, they have good anti-interference capabilities and long-term stability. Furthermore, by optimizing sensor design and calibration algorithms, they can achieve precise measurement and calibration from small force values ​​to large force values, meeting the needs of different users; and they can utilize big data processing technology to efficiently process and analyze massive amounts of calibration and testing data, extracting valuable information and providing data support for calibration decisions.

[0039] It should be noted that the specific models and specifications of the force gauge 2, the first distance sensor 35, and the second distance sensor 42 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A high-precision force gauge calibration device, characterized in that, include: Reference component (1), the reference component (1) includes a base (11) and a balance bar (12) centrally rotatably disposed on the base; The force application component (3) includes telescopic components (31) symmetrically arranged on both sides of the balance bar (12). The fixed end of the telescopic component (31) is fixed to the base (11). A force measuring instrument (2) is detachably connected to the telescopic end of the telescopic component (31). The force measuring instrument (2) and the balance bar (12) are detachably connected. A first distance sensor (35) is provided between the force measuring instrument (2) and the base (11).

2. The high-precision force gauge calibration device as described in claim 1, characterized in that, The balance bar (12) is fixed to hooks (13) at both ends, and the force measuring instrument (2) is suspended from the hooks (13).

3. The high-precision force gauge calibration device as described in claim 1, characterized in that, An adjusting member (14) is provided between the balance bar (12) and the base (11), the adjusting member (14) comprising: An adjusting pin (141) is fixed to the balance bar (12) and rotatably connected to the base (11); Reference block (142), the reference block (142) is fixed to the base (11), and the end of the adjusting pin (141) away from the balance bar (12) points to the reference block (142); The scale (143) is evenly distributed on one side of the reference block (142).

4. The high-precision force gauge calibration device as described in claim 1, characterized in that, The fixed end of the telescopic member (31) is fixedly connected to a support plate (32), and the support plate (32) is fixedly connected to the base (11).

5. The high-precision force gauge calibration device as described in claim 1, characterized in that, A mounting plate (33) is fixedly connected to the telescopic end of the telescopic member (31), and a locking member (34) is provided on the mounting plate (33).

6. The high-precision force gauge calibration device as described in claim 5, characterized in that, The locking element (34) includes: Two clamping plates (341) are symmetrically arranged at one end of the mounting plate (33) away from the telescopic member (31). The force gauge (2) is located between the two clamping plates (341). The first distance sensor (35) is located on the bottom side of the force gauge (2) and fixed to the base (11). A double-ended screw (342) is rotatably connected to two mounting seats, which are symmetrically fixed to the mounting plate (33). The double-ended screw (342) and the two clamping plates (341) are threadedly connected. A guide rod (343) is rotatably connected to two mounting seats, which are symmetrically fixed to the mounting plate (33). The guide rod (343) is slidably connected to two clamping plates (341).

7. The high-precision force gauge calibration device as described in claim 6, characterized in that, An anti-slip pad (344) is fixed to the side of the clamping plate (341) facing the force measuring instrument (2).

8. The high-precision force gauge calibration device as described in claim 3, characterized in that, Auxiliary components (4) are symmetrically fixed to both sides of the reference block (142), and the auxiliary components (4) include: Two fixing plates (41) are symmetrically fixed to the side wall of the reference block (142); Two second distance sensors (42) are symmetrically fixed to one side of the two fixed plates (41) that are close to each other. The second distance sensors (42) are located at the position where the fixed plate (41) extends out of the reference block (142). Sliding sleeve (43), the sliding sleeve (43) is slidably sleeved on the adjusting pin (141); A slider (44) is slidably connected to the reference block (142), and the slider (44) and the sleeve (43) are rotatably connected.

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