Portable displacement sensor field calibration device

Abstract

The utility model discloses a portable displacement sensor field calibration device comprising a housing, the bottom of the housing is fixedly connected with a support pedestal, and the bottom of the inner cavity of the support pedestal is fixedly connected with an electric push rod. By arranging the shell, the supporting base, the electric push rod, the calibration frame, the sensor mounting frame, the base plate, the moving block, the reflecting plate, the motor, the screw rod, the threaded sleeve and the marking plate, the calibration device is carried to a displacement sensor production line, the top cover is opened, the electric push rod is started, and the telescopic end of the electric push rod drives the calibration frame to move upwards to the top of the shell; a displacement sensor is fixed on a sensor mounting frame, a controller on the back surface of a shell is used for controlling a motor to rotate clockwise and anticlockwise and controlling the rotating speed, and a moving block does constant-speed variable-speed motion on a base plate; the moving distance of the moving block is determined by recording the reading of the marking plate on the scale, and the moving distance is compared with data detected by the displacement sensor for calibration.

Description

Technical Field

[0001] The utility model relates to the technical field of displacement sensor calibration, in particular to a portable on-site calibration device for a displacement sensor. Background Art

[0002] The displacement sensor is a linear device based on metal induction, which can convert the change of various displacements into electrical signals. The displacement sensor is a device that is widely used in industry and engineering. Among them, the linear laser displacement sensor is more widely used. In order to ensure the accuracy of the displacement sensor, it must be calibrated regularly.

[0003] For example, the disclosed utility model provides "a displacement sensor calibration device", and its announcement number is: CN210625611U. The patent includes a workbench assembly and a calibration device assembly. The workbench assembly includes a workbench, support legs, a first support plate, a second support plate, a top plate, a bearing and a scale. The controller controls the motor to rotate clockwise, counterclockwise and the speed of rotation. The slider moves at a uniform speed on the guide rail. The moving distance of the slider is determined by recording the reading indicated by the triangle block on the scale and comparing it with the data detected by the displacement sensor for calibration, thereby avoiding position offset caused by manual operation and inaccurate detection caused by human interference.

[0004] However, due to its size, this patent is not convenient to carry, and it can only be placed in a fixed position to calibrate the displacement sensor, and it cannot meet the needs of on-site calibration. Therefore, the purpose of the utility model is to improve the ease of use of the displacement sensor calibration device through a portable mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a portable on-site calibration device for a displacement sensor, which has the advantage of being easy to carry and solves the problem that the existing displacement sensor calibration device is not easy to carry due to its size, can only be placed in a fixed position to calibrate the displacement sensor, and cannot meet the needs of on-site calibration.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable displacement sensor on-site calibration device, comprising a shell, a supporting base is fixedly connected to the bottom of the shell, an electric push rod is fixedly connected to the bottom of the inner cavity of the supporting base, the telescopic end of the electric push rod penetrates into the inner cavity of the shell and is fixedly connected to the calibration frame, a sensor mounting frame is arranged on the right side of the bottom of the inner cavity of the calibration frame, a pad is fixedly connected to the bottom of the inner cavity of the calibration frame, a moving block is movably connected to the top of the pad, a reflector is fixedly connected to the right side of the moving block, a motor is arranged on the top of the right side of the inner cavity of the calibration frame, a screw is fixedly connected to the output end of the motor, a threaded sleeve is threadedly connected to the surface of the screw, the bottom of the threaded sleeve is fixedly connected to the top of the moving block through a connecting block, a marking plate is fixedly connected to the top of the threaded sleeve, a scale is fixedly connected to the rear side of the top of the calibration frame, a top cover is movably connected to the top of the right side of the shell, a card frame is fixedly connected to the top of the right side of the shell, and a fastening long bolt is threadedly connected to the right side of the card frame.

[0007] Preferably, a fixing frame is fixedly connected to the left side of the bottom of the inner cavity of the shell, and a battery is arranged in the inner cavity of the fixing frame.

[0008] Preferably, the four corners of the bottom of the calibration frame are fixedly connected to limit rods, and the surface of the limit rods is movably connected to the inner cavity of the limit sleeve at the bottom of the shell.

[0009] Preferably, a front cover plate is provided on the front side of the housing, and screws are provided on the four corners of the surface of the front cover plate.

[0010] Preferably, one side of the top of the inner cavity of the calibration frame is fixedly connected to a limiting frame, and the inner cavity of the limiting frame is movably connected to the surface of the screw.

[0011] Preferably, a support pad is fixedly connected to the bottom of the support base, and the support pads are evenly distributed at the four corners of the bottom of the support base.

[0012] Preferably, a handle is fixedly connected to the top of the top cover, and the handle is made of non-woven fabric.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a shell, a supporting base, an electric push rod, a calibration frame, a sensor mounting frame, a pad, a moving block, a reflector, a motor, a screw, a threaded sleeve and a marking plate, and carries the calibration device to a displacement sensor production line. The top cover is opened, and the electric push rod is started. The telescopic end of the electric push rod drives the calibration frame to move upward to the top of the shell, and the displacement sensor is fixed on the sensor mounting frame. The controller on the back of the shell controls the motor to rotate clockwise, counterclockwise and at a rotation speed, and the moving block performs uniform speed-changing motion on the pad. The moving distance of the moving block is determined by recording the reading of the marking plate on the scale and comparing it with the data detected by the displacement sensor for calibration.

[0015] 2. The utility model provides a fixed frame and a battery in its inner cavity, so that the fixed frame can protect the battery, and the battery can provide necessary electric energy for the calibration device. A limit rod is provided to limit the bottom of the calibration frame, so that the stability of the calibration frame when it moves up and down can be improved. A front cover is provided to facilitate maintenance personnel to open it to inspect and maintain relevant components of the inner cavity of the shell. A limit frame is provided to limit the threaded sleeve on the surface of the screw, so that the movement range of the threaded sleeve can be limited. Support pads are provided to support the bottom of the support base, and the support pads are evenly distributed at the four corners of the bottom of the support base, so that the calibration device can be stably placed in the designated sensor calibration position. A handle is provided to facilitate the displacement sensor calibrator to lift the calibration device by hand to move it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of the middle A;

[0019] Figure 4 It is a three-dimensional diagram of the pad and the top moving block of the utility model.

[0020] In the figure: 1. Shell; 2. Support base; 3. Electric push rod; 4. Calibration frame; 5. Sensor mounting frame; 6. Pad; 7. Moving block; 8. Reflector; 9. Motor; 10. Screw; 11. Threaded sleeve; 12. Marking plate; 13. Ruler; 14. Top cover; 15. Bracket; 16. Long fastening bolt; 17. Battery; 18. Limit rod; 19. Front cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The components of the present invention are all common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0023] See also Figure 1-4 A portable displacement sensor field calibration device comprises a shell 1, a supporting base 2 is fixedly connected to the bottom of the shell 1, an electric push rod 3 is fixedly connected to the bottom of the inner cavity of the supporting base 2, a telescopic end of the electric push rod 3 penetrates into the inner cavity of the shell 1 and is fixedly connected to a calibration frame 4, a sensor mounting frame 5 is arranged on the right side of the bottom of the inner cavity of the calibration frame 4, a pad 6 is fixedly connected to the bottom of the inner cavity of the calibration frame 4, a moving block 7 is movably connected to the top of the pad 6, a reflector 8 is fixedly connected to the right side of the moving block 7, a motor 9 is arranged on the top of the right side of the inner cavity of the calibration frame 4, a screw 10 is fixedly connected to the output end of the motor 9, a threaded sleeve 11 is threadedly connected to the surface of the screw 10, the bottom of the threaded sleeve 11 is fixedly connected to the top of the moving block 7 through a connecting block, a marking plate 12 is fixedly connected to the top of the threaded sleeve 11, a scale 13 is fixedly connected to the rear side of the top of the calibration frame 4, a top cover 14 is movably connected to the top of the shell 1, a bracket 15 is fixedly connected to the top of the right side of the shell 1, and a fastening long bolt 16 is threadedly connected to the right side of the bracket 15.

[0024] A fixing frame is fixedly connected to the left side of the bottom of the inner cavity of the housing 1, and the inner cavity of the fixing frame is provided with a battery 17. Through the above technical solution, by providing the fixing frame and the battery 17 in its inner cavity, the fixing frame can protect the battery 17, and the battery 17 can provide the necessary power for the calibration device.

[0025] The four corners at the bottom of the calibration frame 4 are fixedly connected to the limiting rod 18 , and the surface of the limiting rod 18 is movably connected to the inner cavity of the limiting sleeve at the bottom of the shell 1 .

[0026] Through the above technical solution, by providing a limit rod 18 for limiting and supporting the bottom of the calibration frame 4, the stability of the calibration frame 4 when moving up and down can be improved.

[0027] A front cover plate 19 is provided on the front of the housing 1 , and screws are provided at the four corners of the surface of the front cover plate 19 .

[0028] Through the above technical solution, by providing the front cover 19 , it is convenient for maintenance personnel to open it to perform maintenance on the relevant components of the inner cavity of the shell 1 .

[0029] One side of the top of the inner cavity of the calibration frame 4 is fixedly connected to a limiting frame, and the inner cavity of the limiting frame is movably connected to the surface of the screw rod 10.

[0030] Through the above technical solution, by providing a limiting frame to limit the threaded sleeve 11 on the surface of the screw 10, the movement range of the threaded sleeve 11 can be limited.

[0031] The bottom of the support base 2 is fixedly connected with support pads, and the support pads are evenly distributed at the four corners of the bottom of the support base.

[0032] Through the above technical solution, support pads are provided to support the bottom of the support base 2, and the support pads are evenly distributed at the four corners of the bottom of the support base, so that the calibration device can be stably placed at the designated sensor calibration position.

[0033] A handle is fixedly connected to the top of the top cover 14, and the handle is made of non-woven fabric.

[0034] Through the above technical solution, by providing a handle, it is convenient for the displacement sensor calibrator to lift the calibration device by hand to move it.

[0035] When in use, the displacement sensor calibration staff carries the calibration device to the displacement sensor production line, opens the top cover 14, starts the electric push rod 3, and the telescopic end of the electric push rod 3 drives the calibration frame 4 to move upward to the top of the shell 1, fixes the displacement sensor on the sensor mounting frame 5, and controls the motor 9 to rotate clockwise, counterclockwise and the speed of rotation through the controller on the back of the shell 1. The moving block 7 moves at a uniform speed or variable speed on the pad 6. The moving distance of the moving block 7 is determined by recording the reading of the marking plate 12 on the scale 13 and comparing it with the data detected by the displacement sensor for calibration. After the detection is completed, the top cover 14 is covered until the bent plate on one side of the top cover 14 is inserted into the bracket 15, and the long bolt 16 is tightened until one end of it is inserted into the bent plate, and the calibration device can be lifted by hand by holding the handle to move.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable displacement sensor field calibration device, comprising a housing (1), characterized in that: The bottom of the shell (1) is fixedly connected to a support base (2), the bottom of the inner cavity of the support base (2) is fixedly connected to an electric push rod (3), the telescopic end of the electric push rod (3) penetrates into the inner cavity of the shell (1) and is fixedly connected to a calibration frame (4), a sensor mounting frame (5) is arranged on the right side of the bottom of the inner cavity of the calibration frame (4), a pad (6) is fixedly connected to the bottom of the inner cavity of the calibration frame (4), a moving block (7) is movably connected to the top of the pad (6), a reflector (8) is fixedly connected to the right side of the moving block (7), and a motor is arranged on the top of the right side of the inner cavity of the calibration frame (4). (9), the output end of the motor (9) is fixedly connected with a screw rod (10), the surface of the screw rod (10) is threadedly connected with a threaded sleeve (11), the bottom of the threaded sleeve (11) is fixedly connected with the top of the moving block (7) through a connecting block, the top of the threaded sleeve (11) is fixedly connected with a marking plate (12), the rear side of the top of the calibration frame (4) is fixedly connected with a scale (13), the top of the housing (1) is movably connected with a top cover (14), the top of the right side of the housing (1) is fixedly connected with a bracket (15), and the right side of the bracket (15) is threadedly connected with a long fastening bolt (16).

2. A portable displacement sensor field calibration device according to claim 1, characterized in that: A fixing frame is fixedly connected to the left side of the bottom of the inner cavity of the housing (1), and a storage battery (17) is arranged in the inner cavity of the fixing frame.

3. The portable displacement sensor field calibration device according to claim 1, characterized in that: The four corners of the bottom of the calibration frame (4) are fixedly connected to a limiting rod (18), and the surface of the limiting rod (18) is movably connected to the inner cavity of the limiting sleeve at the bottom of the outer shell (1).

4. The portable displacement sensor field calibration device according to claim 1, characterized in that: A front cover plate (19) is arranged on the front of the housing (1), and screws are arranged at the four corners of the surface of the front cover plate (19).

5. The portable displacement sensor field calibration device according to claim 1, characterized in that: One side of the top of the inner cavity of the calibration frame (4) is fixedly connected to a limiting frame, and the inner cavity of the limiting frame is movably connected to the surface of the screw rod (10).

6. The portable displacement sensor field calibration device according to claim 1, characterized in that: The bottom of the support base (2) is fixedly connected with a support pad, and the support pads are evenly distributed at the four corners of the bottom of the support base.

7. The portable displacement sensor field calibration device according to claim 1, characterized in that: A handle is fixedly connected to the top of the top cover (14), and the handle is made of non-woven fabric.

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