Multifunctional dynamometer calibration device

Abstract

The utility model provides a multifunctional dynamometer calibration device which comprises a main frame, an automatic loading mechanism and a manual loading mechanism which are respectively arranged on the main frame, a plurality of universal wheels are arranged at the lower end of the main frame, a bedplate is arranged on the main frame, the automatic loading mechanism is arranged on the bedplate, the manual loading mechanism is arranged on one side of the bedplate, and the universal wheels are arranged on the other side of the bedplate. The automatic loading mechanism and the manual loading mechanism are respectively in signal connection with the upper computer, the upper computer is arranged on the main frame, and the automatic loading mechanism and the manual loading mechanism are respectively used for calibrating the pulling direction or the pressing direction of the detected working dynamometer. The multifunctional dynamometer calibration device provided by the utility model is provided with a plurality of universal wheels, can quickly move according to a detection environment, can realize an online calibration function, is divided into an automatic loading device and a manual loading device, can meet calibration requirements of different dynamometers, and is convenient to operate and high in detection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of instrument calibration, and in particular relates to a multifunctional force measuring instrument calibration device. Background Technology

[0002] There are many types of working force gauges, and different types of working force gauges have different working states and usage methods during the calibration process. This requires the use of special equipment or special fixtures to complete the verification and calibration. However, the calibration process is inefficient due to cumbersome assembly and the inability to calibrate online. In addition, the tension or pressure of the calibration device is different when dealing with working force gauges of different specifications, and different drive devices need to be adapted. The existing calibration devices cannot meet the calibration needs of multiple working force gauges. Summary of the Invention

[0003] In view of this, the present invention aims to propose a multifunctional force gauge calibration device to solve the problems that existing working force gauge calibration devices cannot meet the testing requirements of various specifications, and are cumbersome to assemble and have low testing and calibration efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A multifunctional force gauge calibration device includes a main frame with an automatic loading mechanism and a manual loading mechanism respectively mounted on it. Multiple casters are installed at the lower end of the main frame. A platform is set on the main frame, and an automatic loading mechanism is set on the platform. A manual loading mechanism is set on one side of the platform. The automatic loading mechanism and the manual loading mechanism are respectively connected to a host computer, which is set on the main frame. The automatic loading mechanism and the manual loading mechanism are used to calibrate the tensile or compressive direction of the force gauge under test.

[0006] Furthermore, the automatic loading mechanism includes a drive cylinder, an upper pressure plate, support columns, first guide rods, and a lower pressure plate. Multiple support columns are mounted on the platform and arranged parallel to each other. The upper end of each support column is fixedly connected to the lower end of the upper pressure plate, and the lower end of the support column is fixedly connected to the upper end of the platform. A drive cylinder is fixedly mounted on the upper pressure plate, and a first standard force sensor is installed at the movable end of the drive cylinder. The first standard force sensor abuts against a movable plate, and multiple first guide rods are provided on the movable plate. Multiple sliding holes are provided on the upper pressure plate, and the periphery of each first guide rod is slidably connected to a sliding hole. The multiple first guide rods are arranged parallel to each other, and the lower end of each first guide rod is fixedly connected to the upper end of the lower pressure plate, which is also parallel to the upper pressure plate.

[0007] Furthermore, the platform and the lower pressure plate are respectively provided with a first fixing part, and the two first fixing parts are arranged opposite to each other, and the two ends of the working force measuring instrument under test are respectively installed to one end of a first fixing part.

[0008] Furthermore, the first fixing part includes a first central shaft, which is fixedly installed on the lower pressure plate or the platform. One end of the first central shaft is rotatably mounted on the base. One end of the base is provided with a U-shaped groove, and the base is provided with a first through hole. The first through hole penetrates the side wall of the U-shaped groove. A first pin is detachably connected inside the first through hole. One end of the working force gauge under test is located inside the U-shaped groove and is rotatably connected to the base through the first pin.

[0009] Furthermore, the manual loading mechanism includes a first lead screw, a movable plate, a fixed plate, and a second guide rod. The second guide rod and the first lead screw are arranged parallel to each other. One end of the second guide rod is fixedly connected to the main frame, and one end of the first lead screw is rotatably connected to the main frame. A handwheel is fixedly installed on the other end of the first lead screw. The other end of the second guide rod is fixedly connected to the lower end of the fixed plate. The movable plate is slidably arranged around the second guide rod, and the movable plate is provided with a threaded hole. The outer side of the first lead screw is threadedly connected to the threaded hole. The working force gauge under test is installed between the movable plate and the fixed plate.

[0010] Furthermore, a second fixing part is provided on the movable plate, and the second fixing part is a rectangular plate. The second fixing part is provided with a series hole, and the positioning bolt passes through the series hole and is connected to one end of the working force measuring instrument under test.

[0011] Furthermore, the manual loading mechanism also includes a second standard force sensor, and a plurality of third fixing parts are provided on the fixing plate. The plurality of third fixing parts are arranged in parallel with each other, and the third fixing parts are hollow cylindrical structures. One end of the third fixing part is fixedly connected to the lower end of the fixing plate, and the lower end of the third fixing part is detachably connected to one end of the second standard force sensor.

[0012] Furthermore, one end of the second standard force sensor is provided with a pin hole, and one end of the tested working force instrument is rotatably connected to the pin hole through the second pin.

[0013] Compared with the prior art, the multifunctional force gauge calibration device of this utility model has the following advantages: it is equipped with multiple casters, which can move quickly according to the testing environment, and can realize online calibration function. It is divided into automatic loading device and manual loading device, which can meet the calibration needs of different force gauges. It is easy to operate and has high testing efficiency. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1This is a schematic diagram of the structure of a multifunctional force measuring instrument calibration device according to an embodiment of the present invention;

[0016] Figure 2 This is a front view schematic diagram of a multifunctional force measuring instrument calibration device according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the automatic loading mechanism described in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the first fixing part according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the manual loading mechanism described in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Main frame; 2-Automatic loading mechanism; 21-Drive cylinder; 22-Upper bearing plate; 23-Support column; 24-First guide rod; 25-Lower pressure plate; 26-First standard force sensor; 27-Moving plate; 28-First fixed part; 281-First central shaft; 282-Base; 283-First pin; 3-Manual loading mechanism; 31-First lead screw; 32-Moving plate; 33-Fixed plate; 34-Second guide rod; 35-Second fixed part; 36-Second standard force sensor; 37-Third fixed part; 38-Second pin; 4-Universal wheel; 5-Table; 6-Host computer. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figures 1-5 As shown, a multifunctional force gauge calibration device includes a main frame 1 with an automatic loading mechanism 2 and a manual loading mechanism 3 respectively mounted on it. Multiple casters 4 are installed at the lower end of the main frame 1. A platform 5 is mounted on the main frame 1, with the automatic loading mechanism 2 mounted on the platform 5 and the manual loading mechanism 3 mounted on one side of the platform 5. The automatic loading mechanism 2 and the manual loading mechanism 3 are respectively connected to a host computer 6, which is mounted on the main frame 1. The automatic loading mechanism 2 and the manual loading mechanism 3 are used to calibrate the tensile or compressive direction of the force gauge under test. The device is equipped with multiple casters 4, allowing for rapid movement according to the testing environment. It enables online calibration and, with both automatic and manual loading devices, can meet the calibration needs of different force gauges. It is easy to operate and has high testing efficiency.

[0027] The automatic loading mechanism 2 includes a drive cylinder 21, an upper pressure plate 22, support columns 23, first guide rods 24, and a lower pressure plate 25. Multiple support columns 23 are mounted on the platform 5, and these columns are arranged parallel to each other. The upper end of each support column 23 is fixedly connected to the lower end of the upper pressure plate 22, and the lower end of each support column 23 is fixedly connected to the upper end of the platform 5. The drive cylinder 21 is fixedly mounted on the upper pressure plate 22, and a first standard force sensor 26 is installed at the movable end of the drive cylinder 21. The first standard force sensor 26 abuts against a movable plate 27, and multiple first guide rods 24 are installed on the movable plate 27. The upper pressure plate 22 is provided with multiple sliding holes. Each first guide rod 24 is slidably connected to a sliding hole. The multiple first guide rods 24 are arranged parallel to each other. The lower end of each first guide rod 24 is fixedly connected to the upper end of the lower pressure plate 25. The lower pressure plate 25 and the upper pressure plate 22 are arranged parallel to each other. The driving cylinder 21 can drive the first standard force sensor 26 to abut against the moving plate 27 and drive the moving plate 27 to slide upward. When the moving plate 27 slides upward, it drives the lower pressure plate 25 to clamp with the upper pressure plate 22, and drives the lower pressure plate 25 to move towards the platform 5, thereby realizing the tension or compression calibration of the tested working force measuring instrument.

[0028] First fixing parts 28 are respectively provided on the platform 5 and the lower pressure plate 25, and the two first fixing parts 28 are arranged opposite each other. The two ends of the work measuring instrument under test are respectively installed to one end of one of the first fixing parts 28. The first fixing part 28 includes a first central shaft 281, which is fixedly installed on the lower pressure plate 25 or the platform 5. A base 282 is rotatably installed at one end of the first central shaft 281. A U-shaped groove is provided at one end of the base 282, and a first through hole is provided on the base 282. The first through hole penetrates the side wall of the U-shaped groove. A first pin 283 is detachably connected in the first through hole. One end of the work measuring instrument under test is located in the U-shaped groove and is rotatably connected to the base 282 through the first pin 283. The testing end of the work measuring instrument under test will have a reserved insertion hole for easy connection, and the corresponding other end will have a hook hole. The first fixing part 28 and the work measuring instrument under test can be easily connected through the first pin 283.

[0029] The manual loading mechanism 3 includes a first lead screw 31, a movable plate 32, a fixed plate 33, and a second guide rod 34. The second guide rod 34 and the first lead screw 31 are arranged parallel to each other. One end of the second guide rod 34 is fixedly connected to the main frame 1, and one end of the first lead screw 31 is rotatably connected to the main frame 1. A handwheel is fixedly installed on the other end of the first lead screw 31, and the other end of the second guide rod 34 is fixedly connected to the lower end of the fixed plate 33. The movable plate 32 is slidably arranged around the second guide rod 34, and the movable plate 32 is provided with a threaded hole. The outer side of the first lead screw 31 is threadedly connected to the threaded hole. The workpiece force gauge under test is installed between the movable plate 32 and the fixed plate 33. Rotating the handwheel can synchronously drive the first lead screw 31 to rotate. The movable plate 32 is limited by the sliding trajectory of the second guide rod 34, thereby realizing the relative displacement between the movable plate 32 and the fixed plate 33. The workpiece force gauge under test is placed between the movable plate 32 and the fixed plate 33, thereby realizing the application of pulling or pressing force to the workpiece force gauge under test. To facilitate connection, a second fixing part 35 is provided on the movable plate 32. The second fixing part 35 is a rectangular plate and has a series hole. The positioning bolt passes through the series hole and is connected to one end of the working force measuring instrument under test.

[0030] The manual loading mechanism 3 also includes a second standard force sensor 36. A plurality of third fixing parts 37 are provided on the fixing plate 33, arranged parallel to each other. Each third fixing part 37 is a hollow cylindrical structure. One end of each third fixing part 37 is fixedly connected to the lower end of the fixing plate 33, and the lower end of the third fixing part 37 is detachably connected to one end of the second standard force sensor 36. One end of the second standard force sensor 36 has a pin hole. One end of the tested working force gauge is rotatably connected to the pin hole via a second pin 38. Both the first standard force sensor 26 and the second standard force sensor 36 are existing technologies. Both the first standard force sensor 26 and the second standard force sensor 36 are connected to the host computer 6. In implementation, the host computer 6 is a controller based on existing technology. The control method in this embodiment is achieved through the controller. The controller's control circuit can be easily programmed by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document primarily aims to protect mechanical devices, and the control method and circuit connections will not be explained in detail herein.

[0031] The working process of a multifunctional force gauge calibration device:

[0032] A multifunctional force gauge calibration device can be used to calibrate different types of working force gauges below 20kN. When calibrating a compressive working force gauge in the range of (2~20)kN, the working force gauge under test is placed between the lower pressure plate 25 and the upper bearing plate 22. The driving cylinder 21 drives the first standard force sensor 26 upward until it contacts the moving plate 27. As the displacement rises, the working force gauge under test contacts the upper bearing plate 22, thereby generating a force value. The output force value of the working force gauge under test is compared with that of the first standard force sensor 26 to complete the compressive calibration of the working force gauge.

[0033] The work force measuring instrument under test is installed on the upper and lower first fixed parts 28. The drive cylinder 21 drives the first standard force sensor 26 upward until the moving plate 27 contacts it. As the displacement rises, one end of the work force measuring instrument under test is fixed on the first fixed part 28 on the worktable, and the other end moves slowly upward with another first fixed part 28 to generate a force value. The output force value of the work force measuring instrument under test is compared with that of the first standard force sensor 26 to complete the pull-direction calibration of the work force measuring instrument.

[0034] When calibrating a working force gauge in the range of 100N to 3kN, the working force gauge under test is installed in the upper or lower space of the manual loading mechanism 3. The whole is fixed on the movable plate 32 and the fixed plate 33 by screws or other fixing methods. Its force-bearing end is connected to the second standard force sensor 36. The displacement is controlled by rotating the handwheel upward or downward to complete the calibration of the tensile and compressive aspects of the working force gauge under test.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional force gauge calibration device, characterized in that: The system includes a main frame (1) and an automatic loading mechanism (2) and a manual loading mechanism (3) respectively. Multiple casters (4) are installed at the lower end of the main frame (1). A platform (5) is set on the main frame (1). An automatic loading mechanism (2) is set on the platform (5). A manual loading mechanism (3) is set on one side of the platform (5). The automatic loading mechanism (2) and the manual loading mechanism (3) are respectively connected to the host computer (6). The host computer (6) is set on the main frame (1). The automatic loading mechanism (2) and the manual loading mechanism (3) are respectively used to calibrate the tensile or compressive direction of the working force measuring instrument under test.

2. The multifunctional force gauge calibration device according to claim 1, characterized in that: The automatic loading mechanism (2) includes a drive cylinder (21), an upper pressure plate (22), a support column (23), a first guide rod (24), and a lower pressure plate (25). Multiple support columns (23) are installed on the platform (5) and are arranged parallel to each other. The upper end of each support column (23) is fixedly connected to the lower end of the upper pressure plate (22), and the lower end of the support column (23) is fixedly connected to the upper end of the platform (5). The drive cylinder (21) is fixedly installed on the upper pressure plate (22). The movable end is provided with a first standard force sensor (26), which abuts against the movable plate (27). The movable plate (27) is provided with multiple first guide rods (24), and the upper bearing plate (22) is provided with multiple sliding holes. Each first guide rod (24) is slidably connected to a sliding hole. The multiple first guide rods (24) are arranged parallel to each other. The lower end of each first guide rod (24) is fixedly connected to the upper end of the lower pressure plate (25), and the lower pressure plate (25) and the upper bearing plate (22) are arranged parallel to each other.

3. The multifunctional force gauge calibration device according to claim 2, characterized in that: The table (5) and the lower pressure plate (25) are respectively provided with a first fixing part (28), and the two first fixing parts (28) are arranged opposite each other. The two ends of the working force measuring instrument under test are respectively installed to one end of a first fixing part (28).

4. The multifunctional force gauge calibration device according to claim 3, characterized in that: The first fixing part (28) includes a first central shaft (281), which is fixedly installed on the lower pressure plate (25) or the platform (5). One end of the first central shaft (281) is rotatably mounted on the base (282). One end of the base (282) is provided with a U-shaped groove, and the base (282) is provided with a first through hole. The first through hole penetrates the side wall of the U-shaped groove. A first pin (283) is detachably connected in the first through hole. One end of the working force measuring instrument under test is located in the U-shaped groove and is rotatably connected to the base (282) through the first pin (283).

5. The multifunctional force gauge calibration device according to claim 1, characterized in that: The manual loading mechanism (3) includes a first lead screw (31), a movable plate (32), a fixed plate (33), and a second guide rod (34). The second guide rod (34) and the first lead screw (31) are arranged parallel to each other. One end of the second guide rod (34) is fixedly connected to the main frame (1), and one end of the first lead screw (31) is rotatably connected to the main frame (1). A handwheel is fixedly installed at the other end of the first lead screw (31). The other end of the second guide rod (34) is fixedly connected to the lower end of the fixed plate (33). The movable plate (32) is slidably arranged around the second guide rod (34), and the movable plate (32) is provided with a threaded hole. The outer periphery of the first lead screw (31) is threadedly connected to the threaded hole. The working force gauge under test is installed between the movable plate (32) and the fixed plate (33).

6. The multifunctional force gauge calibration device according to claim 5, characterized in that: The movable plate (32) is provided with a second fixing part (35), and the second fixing part (35) is a rectangular plate. The second fixing part (35) is provided with a series hole, and the positioning bolt passes through the series hole and is connected to one end of the working force measuring instrument under test.

7. A multifunctional force gauge calibration device according to claim 5, characterized in that: The manual loading mechanism (3) also includes a second standard force sensor (36). Multiple third fixing parts (37) are provided on the fixing plate (33). The multiple third fixing parts (37) are arranged in parallel to each other. The third fixing part (37) is a hollow cylindrical structure. One end of the third fixing part (37) is fixedly connected to the lower end of the fixing plate (33). The lower end of the third fixing part (37) is detachably connected to one end of the second standard force sensor (36).

8. The multifunctional force gauge calibration device according to claim 7, characterized in that: One end of the second standard force sensor (36) is provided with a pin hole, and one end of the tested working force instrument is rotatably connected to the pin hole through the second pin (38).

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