Checking device of displacement sensor

Abstract

The utility model relates to the technical field of verification devices, and discloses a verification device of a displacement sensor, which comprises a workbench, the upper surface of the workbench is fixedly connected with a guide rail, two sides of the upper end of the guide rail are respectively provided with a sliding chute, a sliding block is arranged in each sliding chute, and the upper end of each sliding block is fixedly connected with a mounting block. According to the utility model, the displacement sensor body can be clamped by arranging the lower clamping plate and the upper clamping plate, and the displacement sensor body can be prevented from shaking during clamping by arranging the first non-slip mat and the second non-slip mat, so that the displacement sensor body can be ensured not to be interfered by the outside in the verification process, and stable measurement conditions can be maintained; the displacement sensor body can be positioned by arranging the reinforcing bolts and arranging the rubber heads on the reinforcing bolts, errors caused by position changes of the displacement sensor body can be avoided, and therefore the accuracy of the verification result is guaranteed.

Description

Technical Field

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

[0002] A displacement sensor is a sensor used to measure the position, displacement or deformation of an object. It is widely used in industrial automation, mechanical processing, automotive industry, aerospace and other fields. The displacement sensor needs to be calibrated. The calibration device of the displacement sensor is a device used to calibrate and test the performance of the displacement sensor. The main function of the displacement sensor is to verify the accuracy, sensitivity and linearity of the displacement sensor to ensure the reliability and accuracy of the sensor.

[0003] Some existing calibration devices for displacement sensors are not stable enough when clamping the displacement sensor, and may not be able to apply uniform force to the sensor, causing the sensor to produce a slight displacement during the clamping process, affecting the accuracy of the calibration results. At the same time, they may not be able to fully adapt to sensors of different shapes and sizes, resulting in the sensor being unable to maintain a stable position when clamped.

[0004] Therefore, those skilled in the art provide a calibration device for a displacement sensor to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a calibration device for a displacement sensor is proposed. The displacement sensor body can be clamped by arranging a lower clamping plate and an upper clamping plate. The displacement sensor body can be prevented from shaking when clamping by arranging a first anti-skid pad and a second anti-skid pad. It can ensure that the displacement sensor body is not disturbed by the outside during the calibration process, maintain stable measurement conditions, thereby improving the accuracy of the calibration. The displacement sensor body can be positioned by arranging a reinforcing bolt and a rubber head on the reinforcing bolt, which can avoid errors caused by changes in the position of the displacement sensor body, thereby ensuring the accuracy of the calibration result.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calibration device for a displacement sensor, comprising a workbench, a guide rail is fixedly connected to the upper surface of the workbench, slide grooves are provided on both sides of the upper end of the guide rail, a slider is provided inside the slide groove, a mounting block is fixedly connected to the upper end of the slider, a lead screw is provided in the middle of the upper end of the guide rail, a threaded sleeve is provided on the outer wall of the lead screw, a displacement module is fixedly connected to the upper surface of the mounting block and the threaded sleeve, a servo motor is fixedly connected to the outer wall of the front end of the guide rail, the output end of the servo motor passes through the guide rail and is fixedly connected to the lead screw, and the lead screw is rotatably connected to the guide rail;

[0007] The rear end of the upper surface of the guide rail is fixedly connected to the first positioning plate by bolts, the middle part of the upper surface of the first positioning plate is fixedly connected to the lower clamping plate, the upper end of the lower clamping plate is fixedly connected to the first anti-slip pad, both sides of the upper surface of the first positioning plate are fixedly connected to guide columns, the outer wall of the guide column is sleeved with a second positioning plate, the lower surface of the second positioning plate is fixedly connected to the upper clamping plate, the lower end of the upper clamping plate is fixedly connected to the second anti-slip pad, the middle parts of the second positioning plate, the upper clamping plate and the second anti-slip pad are all provided with limiting holes, the outer wall of the guide column is located at the upper part of the second positioning plate and a positioning nut is provided, and the middle parts of the lower clamping plate and the upper clamping plate are provided with a displacement sensor body;

[0008] Through the above technical solution, the displacement sensor body can be clamped by setting the lower clamping plate and the upper clamping plate, and the first anti-slip pad and the second anti-slip pad can be provided to prevent the displacement sensor body from shaking during clamping, thereby ensuring that the displacement sensor body is not subject to external interference during the calibration process and maintaining stable measurement conditions, thereby improving the accuracy of the calibration.

[0009] Furthermore, a reinforcing bolt is arranged inside the limiting hole, a rubber head is fixedly connected to the lower end of the reinforcing bolt, and a handle is fixedly connected to the upper end of the reinforcing bolt;

[0010] Through the above technical solution, the displacement sensor body can be positioned by providing a reinforcement bolt and a rubber head on the reinforcement bolt, which can avoid errors caused by changes in the position of the displacement sensor body, thereby ensuring the accuracy of the verification result.

[0011] Further, the sliding block is slidably connected inside the sliding groove;

[0012] Through the above technical solution, the function of moving the displacement module can be realized by sliding the slider inside the slide groove.

[0013] Furthermore, the reinforcing bolt is threadedly connected to the limiting hole;

[0014] Through the above technical solution, the function of improving the stability of the displacement sensor body can be achieved by reinforcing the bolts and threaded connection with the limiting holes.

[0015] Furthermore, the positioning nut is threadedly connected to the guide post;

[0016] Through the above technical solution, the function of adjusting the position of the second positioning plate can be achieved through the threaded connection between the positioning nut and the guide column.

[0017] Furthermore, the outer wall of the guide column is sleeved with a spring;

[0018] Through the above technical solution, the stability of the up and down sliding of the first positioning plate and the second positioning plate can be improved by setting, and the stability of the clamping of the upper clamping plate and the lower clamping plate can be improved.

[0019] Furthermore, a PLC control module is fixedly connected to one side of the front end of the upper surface of the workbench;

[0020] Through the above technical solution, the PLC control module is electrically connected to the servo motor and the displacement sensor body.

[0021] Furthermore, support legs are fixedly connected to the four corners of the lower surface of the workbench;

[0022] Through the above technical solution, the device can be supported by providing support legs.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model proposes a calibration device for a displacement sensor. Compared with some existing calibration devices for displacement sensors, the calibration device for the displacement sensor can clamp the displacement sensor body by setting a lower clamping plate and an upper clamping plate. The first anti-slip pad and the second anti-slip pad can prevent the displacement sensor body from shaking during clamping, thereby ensuring that the displacement sensor body is not subject to external interference during the calibration process and maintaining stable measurement conditions, thereby improving the accuracy of the calibration. The displacement sensor body can be positioned by setting a reinforcing bolt and a rubber head on the reinforcing bolt, thereby avoiding errors caused by changes in the position of the displacement sensor body, thereby ensuring the accuracy of the calibration result.

[0025] 2. The utility model proposes a calibration device for a displacement sensor. Compared with some existing calibration devices for displacement sensors, the calibration device for the displacement sensor can realize the function of moving the displacement module by arranging a servo motor, a screw and a threaded sleeve on the guide rail. By arranging a spring on the outer wall of the guide column, the stability of the up and down sliding of the first positioning plate and the second positioning plate can be improved, the clamping stability of the upper clamping plate and the lower clamping plate can be improved, the adjustment and calibration time can be reduced, thereby improving the calibration efficiency, and also reducing the number of re-calibration times due to unstable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an axonometric diagram of a calibration device for a displacement sensor proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a displacement sensor calibration device proposed by the utility model;

[0028] Figure 3An exploded diagram of a displacement sensor calibration device proposed by the utility model;

[0029] Figure 4 This is a structural schematic diagram of a clamping device for a displacement sensor calibration device proposed by the utility model;

[0030] Figure 5 This is a bottom view of a clamping device for a displacement sensor calibration device proposed by the utility model.

[0031] Legend:

[0032] 1. Workbench; 2. Guide rail; 3. Slide; 4. Screw; 5. Slider; 6. Mounting block; 7. Threaded sleeve; 8. Displacement module; 9. Servo motor; 10. First positioning plate; 11. Lower clamping plate; 12. First anti-slip pad; 13. Guide column; 14. Second positioning plate; 15. Upper clamping plate; 16. Second anti-slip pad; 17. Reinforcement bolt; 18. Rubber head; 19. Handle; 20. Limit hole; 21. Positioning nut; 22. Spring; 23. PLC control module; 24. Support leg; 25. Displacement sensor body. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figure 1-5 The utility model provides an embodiment: a calibration device for a displacement sensor, comprising a workbench 1, a guide rail 2 is fixedly connected to the upper surface of the workbench 1, a slide groove 3 is provided on both sides of the upper end of the guide rail 2, a slider 5 is provided inside the slide groove 3, a mounting block 6 is fixedly connected to the upper end of the slider 5, a screw rod 4 is provided in the middle of the upper end of the guide rail 2, a threaded sleeve 7 is provided on the outer wall of the screw rod 4, a displacement module 8 is fixedly connected to the upper surface of the mounting block 6 and the threaded sleeve 7, a servo motor 9 is fixedly connected to the outer wall of the front end of the guide rail 2, the output end of the servo motor 9 passes through the guide rail 2 and is fixedly connected to the screw rod 4, and the screw rod 4 is rotatably connected to the guide rail 2;

[0035] The rear end of the upper surface of the guide rail 2 is fixedly connected with a first positioning plate 10 by bolts, a lower clamping plate 11 is fixedly connected to the middle part of the upper surface of the first positioning plate 10, a first anti-slip pad 12 is fixedly connected to the upper end of the lower clamping plate 11, guide columns 13 are fixedly connected to both sides of the upper surface of the first positioning plate 10, a second positioning plate 14 is sleeved on the outer wall of the guide column 13, an upper clamping plate 15 is fixedly connected to the lower surface of the second positioning plate 14, a second anti-slip pad 16 is fixedly connected to the lower end of the upper clamping plate 15, and a limiting hole 20 is provided in the middle of the second positioning plate 14, the upper clamping plate 15 and the second anti-slip pad 16, a positioning nut 21 is provided on the outer wall of the guide column 13 located at the upper part of the second positioning plate 14, and a displacement sensor body 25 is provided in the middle of the lower clamping plate 11 and the upper clamping plate 15;

[0036] The displacement sensor body 25 can be clamped by setting the lower clamping plate 11 and the upper clamping plate 15, and the displacement sensor body 25 can be prevented from shaking when clamped by setting the first anti-slip pad 12 and the second anti-slip pad 16, thereby ensuring that the displacement sensor body 25 is not subject to external interference during the calibration process and maintaining stable measurement conditions, thereby improving the accuracy of the calibration.

[0037] A reinforcing bolt 17 is disposed inside the limiting hole 20, a rubber head 18 is fixedly connected to the lower end of the reinforcing bolt 17, and a handle 19 is fixedly connected to the upper end of the reinforcing bolt 17;

[0038] The displacement sensor body 25 can be positioned by providing the reinforcement bolt 17 and the rubber head 18 on the reinforcement bolt 17 , thereby avoiding errors caused by position changes of the displacement sensor body 25 , thereby ensuring the accuracy of the calibration result.

[0039] The slider 5 is slidably connected inside the slide groove 3;

[0040] The movement of the displacement module 8 can be achieved by sliding the slider 5 in the slide groove 3 .

[0041] The reinforcing bolt 17 is threadedly connected to the limiting hole 20;

[0042] The function of improving the stability of the displacement sensor body 25 can be achieved by threading the reinforcing bolt 17 with the limiting hole 20 .

[0043] The positioning nut 21 is threadedly connected to the guide column 13;

[0044] The position of the second positioning plate 14 can be adjusted by threading the positioning nut 21 with the guide column 13 .

[0045] The outer wall of the guide column 13 is sleeved with a spring 22;

[0046] By means of the arrangement, the stability of the first positioning plate 10 and the second positioning plate 14 sliding up and down can be improved, and the stability of the clamping of the upper clamping plate 15 and the lower clamping plate 11 can be improved.

[0047] A PLC control module 23 is fixedly connected to one side of the front end of the upper surface of the workbench 1;

[0048] The PLC control module 23 is electrically connected to the servo motor 9 and the displacement sensor body 25 .

[0049] Support legs 24 are fixedly connected to the four corners of the lower surface of the workbench 1;

[0050] Support legs 24 may be provided to support the device.

[0051] Working principle: The calibration device of the displacement sensor can clamp the displacement sensor body 25 by setting the lower clamping plate 11 and the upper clamping plate 15. The first anti-slip pad 12 and the second anti-slip pad 16 can prevent the displacement sensor body 25 from shaking when clamping, which can ensure that the displacement sensor body 25 is not disturbed by the outside during the calibration process and maintain stable measurement conditions, thereby improving the accuracy of the calibration. The displacement sensor body 25 can be positioned by setting the reinforcing bolt 17 and the rubber head 18 on the reinforcing bolt 17, which can avoid the error caused by the position change of the displacement sensor body 25, thereby ensuring the accuracy of the calibration result. The function of moving the displacement module 8 can be realized by setting the servo motor 9, the screw rod 4 and the threaded sleeve 7 on the guide rail 2. The spring 22 is set on the outer wall of the guide column 13 to improve the stability of the up and down sliding of the first positioning plate 10 and the second positioning plate 14, to improve the stability of the clamping of the upper clamping plate 15 and the lower clamping plate 11, to reduce the time of adjustment and calibration, thereby improving the efficiency of the calibration, and also reducing the number of re-calibration due to unstable clamping.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A displacement sensor calibration device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a guide rail (2), both sides of the upper end of the guide rail (2) are provided with a slide groove (3), a slider (5) is arranged inside the slide groove (3), the upper end of the slider (5) is fixedly connected to a mounting block (6), a screw rod (4) is arranged in the middle of the upper end of the guide rail (2), the outer wall of the screw rod (4) is sleeved with a threaded sleeve (7), a displacement module (8) is fixedly connected to the upper surface of the mounting block (6) and the threaded sleeve (7), a servo motor (9) is fixedly connected to the outer wall of the front end of the guide rail (2), the output end of the servo motor (9) passes through the guide rail (2) and is fixedly connected to the screw rod (4), and the screw rod (4) is rotatably connected to the guide rail (2); The rear end of the upper surface of the guide rail (2) is fixedly connected to a first positioning plate (10) by bolts, the middle part of the upper surface of the first positioning plate (10) is fixedly connected to a lower clamping plate (11), the upper end of the lower clamping plate (11) is fixedly connected to a first anti-slip pad (12), both sides of the upper surface of the first positioning plate (10) are fixedly connected to guide columns (13), the outer wall of the guide column (13) is sleeved with a second positioning plate (14), the lower surface of the second positioning plate (14) is fixedly connected to an upper clamping plate (15), the lower end of the upper clamping plate (15) is fixedly connected to a second anti-slip pad (16), the middle parts of the second positioning plate (14), the upper clamping plate (15) and the second anti-slip pad (16) are all provided with limiting holes (20), the outer wall of the guide column (13) is located at the upper part of the second positioning plate (14) and is provided with a positioning nut (21), and the middle parts of the lower clamping plate (11) and the upper clamping plate (15) are provided with a displacement sensor body (25).

2. A displacement sensor calibration device according to claim 1, characterized in that: A reinforcing bolt (17) is disposed inside the limiting hole (20), a rubber head (18) is fixedly connected to the lower end of the reinforcing bolt (17), and a handle (19) is fixedly connected to the upper end of the reinforcing bolt (17).

3. The calibration device for a displacement sensor according to claim 1, characterized in that: The sliding block (5) is slidably connected inside the sliding groove (3).

4. A displacement sensor calibration device according to claim 2, characterized in that: The reinforcing bolt (17) is threadedly connected to the limiting hole (20).

5. The calibration device for a displacement sensor according to claim 1, characterized in that: The positioning nut (21) is threadedly connected to the guide column (13).

6. The calibration device for a displacement sensor according to claim 1, characterized in that: The outer wall of the guide column (13) is sleeved with a spring (22).

7. The calibration device for a displacement sensor according to claim 1, characterized in that: A PLC control module (23) is fixedly connected to one side of the front end of the upper surface of the workbench (1).

8. The calibration device for a displacement sensor according to claim 1, characterized in that: Support legs (24) are fixedly connected to the four corners of the lower surface of the workbench (1).

Images