Sensor calibrating device

Abstract

A sensor calibrating device comprises a base and a bottom plate, the four corners of the bottom of the outer wall of the base are fixedly connected with the inner side of the bottom plate respectively, a top notch of the base is connected with a control structure, the front end and the rear end of the top of the control structure are connected with fixing structures respectively, the output end of an air cylinder is fixedly connected with a pressing block, and the pressing block makes contact with a sensor. After the sensor is pressed, the pressure value is displayed, whether the pressure value on the sensor is the same as the set pressure value is checked, if yes, the sensor meets the requirement, verification is completed, then the ball drives the vertical rod to move upwards to be separated from the round opening, and then the vertical plate drives the top plate to move backwards, so that the front sensor is located below the pressing block; then the round ball is loosened to enable the vertical rod to move downwards to be inserted into the round opening in the rear of the top of the base, at the moment, the air cylinder is matched with the pressing block to calibrate the front sensor, meanwhile, the sensor is replaced through the operation mode of installing the fixing structure, the operation and use time of the sensor calibrating device is saved, and the working efficiency of the sensor calibrating device is improved.

Description

Technical Field

[0001] The utility model relates to a sensor calibration device, in particular to a sensor calibration device. Background Art

[0002] The main part of the sensor calibration device is usually a sturdy frame used to support and fix various force sensors. It is usually made of high-quality steel or aluminum alloy to ensure its strength and stability.

[0003] For example, a displacement sensor calibration device with the authorization publication number "CN108709522A" includes a base, on which a displacement sensor mounting seat for mounting the displacement sensor along the front-to-back direction is fixedly arranged, and a mechanical micrometer head with an axis extending along the front-to-back direction is installed on the base at the rear side of the displacement sensor mounting seat, and the measuring end of the measuring rod of the mechanical micrometer head faces the displacement sensor mounting seat, which solves the problem of the need to set up a guide rail slide in the prior art and leads to a complex structure of the calibration device. However, when the sensor calibration device is used, a single sensor is calibrated, and a long time is required for disassembly and replacement when the sensor is replaced, resulting in a waste of time in the operation and use of the sensor calibration device, and reducing the working efficiency of the sensor calibration device. Summary of the invention

[0004] The utility model aims to solve the problems existing in the prior art and provide a sensor calibration device, which saves the time of operating the sensor calibration device and improves the working efficiency of the sensor calibration device.

[0005] The utility model adopts a technical solution to solve its technical problems: the sensor calibration device comprises a base and a bottom plate, the four bottom corners of the outer wall of the base are respectively fixedly connected to the inner side of the bottom plate, the top notch of the base is connected to a control structure, the front and rear ends of the top of the control structure are respectively connected to a fixing structure, the left and right sides of the top of the base are fixedly connected to brackets, the top of the bracket is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a pressure block, and the front and rear ends of the top of the control structure are respectively connected to second clamping plates.

[0006] For further improvement, the control structure includes a vertical plate and a top plate. The bottom of the outer wall of the vertical plate is slidably engaged with the top groove of the base. The top of the vertical plate is fixedly connected to the bottom of the top plate. A square plate is fixedly connected to the right side of the vertical plate. A vertical rod is inserted into the inner wall of the square plate. A round ball is fixedly connected to the top of the vertical rod.

[0007] For further improvement, the front and rear sides of the top of the top plate are respectively fixedly connected to the bottom of the second clamping plate.

[0008] Further improvement, the bottom of the vertical rod is fitted with the top of the base.

[0009] To be further improved, the fixed structure includes a vertical plate and a straight rod, the bottoms of the two vertical plates are respectively fixedly connected to the front and rear ends of the top of the top plate, the inner walls of the vertical plates are slidably engaged with the outer walls of the straight rods, a handle is fixedly connected to the outer side of the straight rod, a first clamping plate is fixedly connected to the inner side of the straight rod, a spring is sleeved on the outer wall of the straight rod, and the two ends of the spring are respectively fixedly connected to the inner side of the vertical plate and the outer side of the first clamping plate.

[0010] Further improvement, the bottom of the first clamping plate is in contact with the top of the top plate.

[0011] The beneficial effect of the utility model is as follows: the utility model controls the vertical plate to move forward in the top notch of the base through the control structure, so that the sensor fixed at the rear is located below the pressure block. At this time, the ball causes the vertical rod to move downward through the square plate due to its own gravity, and the bottom of the outer wall of the vertical rod is plugged into the top circular opening of the base. Then the working output end of the cylinder moves the pressure block downward, so that the pressure block contacts the sensor. After the sensor is pressurized, the pressure value will be displayed to check whether the pressure value on the sensor is the same as the set value. If the same, the sensor meets the requirements and completes the calibration. Then the ball moves upward with the vertical rod to disengage from the circular opening, and then the vertical plate moves backward with the top plate, so that the front sensor is located below the pressure block. Then the ball is released to make the vertical rod move downward and plug into the circular opening at the rear of the top of the base. At this time, the cylinder cooperates with the pressure block to calibrate the front sensor. At the same time, the above-mentioned fixed structure operation form is installed to replace the sensor, which saves the time of operating the sensor calibration device and improves the working efficiency of the sensor calibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of the connection relationship between the middle bracket, the cylinder and the pressing block;

[0014] Figure 3 for Figure 1 The structural diagram of A in the figure;

[0015] Figure 4 for Figure 1 Schematic diagram of the structure of B;

[0016] Figure 5 for Figure 2 Schematic diagram of the structure of C.

[0017] Explanation of the reference numerals: 1. base, 2. control structure, 201. vertical plate, 202. top plate, 203. square plate, 204. vertical rod, 205. sphere, 3. fixing structure, 301. vertical plate, 302. straight rod, 303. handle, 304. first splint, 305. spring, 4. bottom plate, 5. second splint, 6. bracket, 7. cylinder, 8. pressure block, 9. straight plate, 10. roller. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings: Example 1

[0019] See attached Figure 1-5 In the present embodiment, a sensor calibration device includes a base 1 and a bottom plate 4. The four bottom corners of the outer wall of the base 1 are respectively fixedly connected to the inner side of the bottom plate 4. The top notch of the base 1 is connected to a control structure 2. The front and rear ends of the top of the control structure 2 are respectively connected to a fixing structure 3. The left and right sides of the top of the base 1 are fixedly connected to brackets 6. The top of the bracket 6 is fixedly connected to a cylinder 7. The model of the cylinder 7 is selected according to the use requirements. The output end of the cylinder 7 is fixedly connected to a pressure block 8. The pressure block 8 is made of stainless steel. The front and rear ends of the top of the control structure 2 are respectively connected to second splints 5. The second splints 5 are rubber plates.

[0020] The control structure 2 includes a vertical plate 201 and a top plate 202. The bottom of the outer wall of the vertical plate 201 is slidably engaged with the top notch of the base 1. The vertical plate 201 is subjected to force to slide back and forth in the top notch of the base 1. The top of the vertical plate 201 is fixedly connected to the bottom of the top plate 202. A square plate 203 is fixedly connected to the right side of the vertical plate 201. A vertical rod 204 is inserted into the inner wall of the square plate 203. The vertical rod 204 is subjected to force to move up and down through the inner wall of the square plate 203. A round ball 205 is fixedly connected to the top of the vertical rod 204. The round ball 205 facilitates pulling the vertical rod 204. The front and rear sides of the top of the top plate 202 are respectively fixedly connected to the bottom of the second clamping plate 5.

[0021] By controlling the structure 2, the vertical plate 201 moves forward in the top notch of the base 1, so that the sensor fixed at the rear is located below the pressure block 8. At this time, the ball 205 moves the vertical rod 204 downward through the square plate 203 due to its own gravity, and the bottom of the outer wall of the vertical rod 204 is plugged into the top round opening of the base 1. Then the working output end of the cylinder 7 moves downward with the pressure block 8, so that the pressure block 8 contacts the sensor. After the sensor is pressurized, the pressure value will be displayed to check whether the pressure value on the sensor is the same as the set value. If they are the same, the sensor meets the requirements. After the calibration is completed as required, the ball 205 moves upward with the vertical rod 204 to disengage from the circular opening, and then the vertical plate 201 moves backward with the top plate 202, so that the front sensor is located under the pressure block 8. Then the ball 205 is released to move the vertical rod 204 downward to connect with the circular opening at the rear top of the base 1. At this time, the cylinder 7 cooperates with the pressure block 8 to calibrate the front sensor, and at the same time, the above-mentioned fixed structure 3 is installed to replace the sensor in the operating form, which saves the time of operating the sensor calibration device and improves the working efficiency of the sensor calibration device.

[0022] The bottom of the vertical rod 204 fits with the top of the base 1, and the fixed structure 3 includes a vertical plate 301 and a straight rod 302. The bottoms of the two vertical plates 301 are respectively fixedly connected to the front and rear ends of the top of the top plate 202, and the inner wall of the vertical plate 301 is slidably engaged with the outer wall of the straight rod 302. The straight rod 302 is forced to move forward and backward through the inner wall of the vertical plate 301. A handle 303 is fixedly connected to the outer side of the straight rod 302, and the handle 303 is convenient for pulling the straight rod 302. A first clamping plate 304 is fixedly connected to the inner side of the straight rod 302. The first clamping plate 304 is a rubber plate. A spring 305 is sleeved on the outer wall of the straight rod 302. The two ends of the spring 305 are respectively fixedly connected to the inner side of the vertical plate 301 and the outer side of the first clamping plate 304. After the first clamping plate 304 is forced to move outward, it rebounds by the elastic force of the spring 305, and the bottom of the first clamping plate 304 fits with the top of the top plate 202.

[0023] Working principle:

[0024] Sensor calibration device and sensor installation:

[0025] Hold the handle 303 and move it outward. The moving handle 303 moves the straight rod 302 outward, and the straight rod 302 moves the first clamp plate 304 outward. At the same time, the first clamp plate 304 squeezes the spring 305, and then the sensor is placed on the top plate 202, so that the outer wall of the sensor first fits with the inner wall of the second clamp plate 5, and then the handle 303 is released. The spring 305 provides a rebound force to move the first clamp plate 304 inward, so that the first clamp plate 304 cooperates with the second clamp plate 5 to fix the sensor tightly.

[0026] Sensor calibration device calibration work:

[0027] The vertical plate 201 moves forward in the top notch of the base 1, so that the sensor fixed at the rear is located below the pressure block 8. At this time, the ball 205 causes the vertical rod 204 to move downward through the square plate 203 due to its own gravity, and the bottom of the outer wall of the vertical rod 204 is plugged into the top circular opening of the base 1. Then the working output end of the cylinder 7 moves the pressure block 8 downward, so that the pressure block 8 contacts the sensor. After the sensor is pressurized, the pressure value will be displayed to check whether the pressure value on the sensor is the same as the set value. If the same, the sensor meets the requirements and completes the calibration. Then the ball 205 moves the vertical rod 204 upward to disengage from the circular opening, and then the vertical plate 201 moves the top plate 202 backward, so that the front sensor is located below the pressure block 8. Then the ball 205 is released to make the vertical rod 204 move downward and plug into the circular opening at the top and rear of the base 1. At this time, the cylinder 7 cooperates with the pressure block 8 to calibrate the front sensor, and at the same time, the above-mentioned fixed structure 3 operation form is installed to replace the sensor. Example 2

[0028] See attached Figure 1-5 In this embodiment, a sensor calibration device further includes a straight plate 9 and a roller 10. The tops of the plurality of straight plates 9 are respectively fixedly connected to the front and rear sides of the bottom of the top plate 202, and the inner lower side of the straight plates 9 is rotatably connected to the outer wall of the roller 10.

[0029] Working principle:

[0030] When the straight plate 202 moves forward and backward, the straight plate 9 will move forward and backward. The moving straight plate 9 causes the roller 10 to rotate on the top of the base 1. The straight plate 9 cooperates with the roller 10 to support the top plate 202, which can prevent the top plate 202 from being deformed after long-term use.

[0031] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A sensor calibration device, comprising a base (1) and a bottom plate (4), characterized in that: The four bottom corners of the outer wall of the base (1) are respectively fixedly connected to the inner side of the bottom plate (4); the top notch of the base (1) is connected to a control structure (2); the front and rear ends of the top of the control structure (2) are respectively connected to a fixing structure (3); the left and right sides of the top of the base (1) are both fixedly connected to brackets (6); the top of the bracket (6) is fixedly connected to a cylinder (7); the output end of the cylinder (7) is fixedly connected to a pressure block (8); and the front and rear ends of the top of the control structure (2) are respectively connected to second clamping plates (5).

2. The sensor calibration device according to claim 1, characterized in that: The control structure (2) comprises a vertical plate (201) and a top plate (202); the bottom of the outer wall of the vertical plate (201) is slidably engaged with the top notch of the base (1); the top of the vertical plate (201) is fixedly connected to the bottom of the top plate (202); a square plate (203) is fixedly connected to the right side of the vertical plate (201); a vertical rod (204) is inserted into the inner wall of the square plate (203); and a round ball (205) is fixedly connected to the top of the vertical rod (204).

3. The sensor calibration device according to claim 2, characterized in that: The front and rear sides of the top of the top plate (202) are respectively fixedly connected to the bottom of the second clamping plate (5).

4. The sensor calibration device according to claim 2, characterized in that: The bottom of the vertical rod (204) fits into the top of the base (1).

5. The sensor calibration device according to claim 1, characterized in that: The fixing structure (3) comprises a vertical plate (301) and a straight rod (302), the bottoms of the two vertical plates (301) are respectively fixedly connected to the front and rear ends of the top of the top plate (202), the inner walls of the vertical plates (301) are slidably engaged with the outer walls of the straight rods (302), a handle (303) is fixedly connected to the outer side of the straight rod (302), a first clamping plate (304) is fixedly connected to the inner side of the straight rod (302), a spring (305) is sleeved on the outer wall of the straight rod (302), and the two ends of the spring (305) are respectively fixedly connected to the inner side of the vertical plate (301) and the outer side of the first clamping plate (304).

6. The sensor calibration device according to claim 5, characterized in that: The bottom of the first clamping plate (304) fits the top of the top plate (202).

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