Displacement sensor calibrating device

Abstract

The utility model provides a displacement sensor calibrating device, which relates to the technical field of displacement sensor calibration and comprises a bottom plate, a fixing mechanism is arranged at the top end of the bottom plate, a sliding groove is formed in the top end of the bottom plate, and a calibrating mechanism is arranged on the inner wall of the sliding groove. The fixing mechanism comprises a placing frame, a first machine shell is arranged at the bottom end of the placing frame, a two-way screw rod is movably inserted into the inner wall of the first machine shell, two first sliding blocks are in threaded connection with the outer surface wall of the two-way screw rod, clamping plates are fixedly installed on the outer surface walls of the two first sliding blocks, and the two first sliding blocks are clamped by adjusting the distance between the two clamping plates. The displacement sensors with different volumes and sizes can be clamped and fixed, the practicability of the device is improved, the position of the measuring rod can be adjusted through the verification mechanism, the measuring rod can be better aligned with the measuring end of the displacement sensor, and then the displacement sensor can be verified conveniently.

Description

Technical Field

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

[0002] As many large-scale engineering structures continue to emerge, the engineering community has begun to pay attention to the service safety issues of these large-scale engineering structures. Therefore, it is crucial to carry out necessary monitoring work on the service status of these large-scale engineering structures to understand their service status. Under such a background, various types of displacement sensors are widely used in the field of civil engineering monitoring. However, the quality of sensors currently used in the field of engineering monitoring is uneven. The calibration of sensors is an indispensable link before the use of sensors.

[0003] The existing calibration device for displacement sensors in authorization announcement number CN208313259U includes a base, a displacement sensor mounting seat is fixedly arranged on the base, the displacement sensor mounting seat includes a bottom wall, a top wall and a connecting wall connected between the bottom wall and the top wall, the bottom wall, the top wall and the connecting wall together form a C-shaped structure with an opening facing right, a lower clamping structure is arranged on the bottom wall, an upper clamping structure that can move up and down relative to the lower clamping structure is arranged on the top wall, a mechanical micrometer head with an axis extending in the front-to-back direction is installed on the rear side of the displacement sensor mounting seat on the base, the measuring end of the measuring rod of the mechanical micrometer head faces the displacement sensor mounting seat, the mechanical micrometer head can be moved up and down for adjustment and can be fixed by a fixing structure after the movement and adjustment. The utility model solves the problem that the calibration device needs to be provided with a guide rail slide in the prior art, which leads to a complex structure and poor versatility of the calibration device.

[0004] Although the above patent provides a clamping structure to fix the displacement sensor under test, the clamping structure is provided with a V-shaped groove, which may result in some displacement sensors of different sizes not being able to adapt well to the shape of the V-shaped groove, thereby affecting the clamping effect of the displacement sensor. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the V-shaped groove affects the clamping effect of the displacement sensor, and proposes a displacement sensor calibration device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a displacement sensor calibration device, comprising a bottom plate, a fixing mechanism is arranged at the top of the bottom plate, a slide groove is opened at the top of the bottom plate, and a calibration mechanism is arranged on the inner wall of the slide groove;

[0007] The fixing mechanism includes a placement rack, a first housing is arranged at the bottom end of the placement rack, a bidirectional screw is movably inserted into the inner wall of the first housing, the outer wall of the bidirectional screw is threadedly connected to two first sliders, the two first sliders are movably inserted into the inner wall of the first housing, the outer walls of the two first sliders are fixedly installed with connecting rods, the outer walls of the two connecting rods are fixedly installed with clamping plates, the outer wall of the first housing is movably inserted with a first rotating plate, the output shaft of the first rotating plate passes through the inner wall of the first housing and is fixedly connected to one end of the outer wall of the bidirectional screw.

[0008] Preferably, the verification mechanism includes a moving block, a second housing is fixedly mounted on the top of the moving block, a first screw is movably inserted into the inner wall of the second housing, a second slider is threadedly connected to the outer wall of the first screw, and the second slider is movably inserted into the inner wall of the second housing.

[0009] Preferably, a second rotating plate is movably inserted at the top of the second housing, and an output shaft of the second rotating plate passes through the inner wall of the second housing and is fixedly connected to one end of the outer wall of the first screw.

[0010] Preferably, a placement frame is fixedly installed on one end of the outer wall of the second sliding block, a placement plate is fixedly installed on the bottom end of the inner wall of the placement frame, a mechanical micrometer is arranged on the top of the placement plate, a measuring rod is arranged on one side of the outer wall of the mechanical micrometer, and a rotating handle is arranged on the other side of the mechanical micrometer.

[0011] Preferably, a threaded sleeve is fixedly installed on the top of the placement frame, and the inner wall of the threaded sleeve is threadedly connected to a second screw rod, the output end of the second screw rod passes through the top of the placement frame and is rotatably connected to an arc-shaped clamping plate, and a third rotating plate is fixedly installed on the top of the second screw rod.

[0012] Preferably, a slide bar is fixedly mounted on the top of the arc-shaped clamping plate, and the top of the slide bar movably passes through the top of the placement frame.

[0013] Preferably, the placement rack and the first housing are both fixedly connected to the bottom plate, and the moving block is movably inserted into the inner wall of the slide groove.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, when the displacement sensor needs to be clamped, the displacement sensor is first placed on the placement frame, and then the first rotating plate is rotated. The first rotating plate drives the bidirectional screw to rotate. During the rotation, the bidirectional screw drives the two first sliders to approach each other, and the two first sliders drive the two clamping plates to approach each other until the displacement sensor is clamped and fixed. By adjusting the distance between the two clamping plates, displacement sensors of different volume sizes can be clamped and fixed, thereby improving the practicality of the device.

[0016] 2. In the utility model, after the displacement sensor is clamped and fixed, it is necessary to use the measuring rod on the mechanical micrometer to contact the measuring end of the displacement sensor. At this time, the slider in the slide groove can be moved according to the position of the measuring end of the displacement sensor, so that the measuring rod and the measuring end of the displacement sensor are aligned left and right, and then the second rotating plate is rotated. The second rotating plate drives the first screw to rotate. The first screw can adjust the height of the measuring rod during the rotation process, so that the measuring rod and the measuring end of the displacement sensor are aligned up and down. Through the mutual cooperation of the two, the position of the measuring rod can be adjusted, so that the measuring rod can be better aligned with the measuring end of the displacement sensor, thereby facilitating the calibration of the displacement sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a displacement sensor calibration device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of a displacement sensor calibration device proposed by the utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of a fixing mechanism in a displacement sensor calibration device proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of a calibration mechanism in a displacement sensor calibration device proposed by the utility model;

[0021] Figure 5 The figure is a schematic diagram of a calibration mechanism from another perspective in a displacement sensor calibration device proposed by the utility model.

[0022] Legend: 1. Bottom plate; 2. Slide groove; 3. Fixing mechanism; 301. Placement frame; 302. First housing; 303. Bidirectional screw; 304. First slider; 305. Connecting rod; 306. Clamping plate; 307. First rotating plate; 4. Verification mechanism; 401. Moving block; 402. Second housing; 403. First screw; 404. Second slider; 405. Second rotating plate; 406. Placement frame; 407. Placement plate; 408. Mechanical micrometer; 409. Measuring rod; 410. Rotating handle; 411. Threaded sleeve; 412. Arc clamp; 413. Slide rod; 414. Third rotating plate; 415. Second screw. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1, as Figure 1-Figure 5 As shown, the utility model provides a displacement sensor calibration device, comprising a bottom plate 1, a fixing mechanism 3 is arranged at the top of the bottom plate 1, a slide groove 2 is opened at the top of the bottom plate 1, and a calibration mechanism 4 is arranged on the inner wall of the slide groove 2;

[0026] The fixing mechanism 3 includes a placement rack 301, a first housing 302 is arranged at the bottom end of the placement rack 301, a bidirectional screw 303 is movably inserted into the inner wall of the first housing 302, and the outer wall of the bidirectional screw 303 is threadedly connected with two first sliders 304, the two first sliders 304 are both movably inserted into the inner wall of the first housing 302, the outer walls of the two first sliders 304 are both fixedly installed with connecting rods 305, the outer walls of the two connecting rods 305 are both fixedly installed with clamping plates 306, the outer wall of the first housing 302 is movably inserted with a first rotating plate 307, the output shaft of the first rotating plate 307 passes through the inner wall of the first housing 302, and is fixedly connected to one end of the outer wall of the bidirectional screw 303.

[0027] The effect achieved by the entire embodiment 1 is that when the displacement sensor needs to be clamped, the displacement sensor is first placed on the placement frame 301, and then the first rotating plate 307 is rotated. The first rotating plate 307 drives the bidirectional screw 303 to rotate. During the rotation, the bidirectional screw 303 drives the two first sliders 304 to approach each other, and the two first sliders 304 drive the two clamping plates 306 to approach each other until the displacement sensor is clamped and fixed. By adjusting the distance between the two clamping plates 306, displacement sensors of different volume sizes can be clamped and fixed, thereby improving the practicality of the device.

[0028] Embodiment 2, as Figure 1-Figure 5 As shown, the calibration mechanism 4 includes a moving block 401, a second housing 402 is fixedly installed on the top of the moving block 401, a first screw 403 is movably inserted into the inner wall of the second housing 402, a second slider 404 is threadedly connected to the outer wall of the first screw 403, and the second slider 404 is movably inserted into the inner wall of the second housing 402. A second rotating plate 405 is movably inserted into the top of the second housing 402, and the output shaft of the second rotating plate 405 passes through the inner wall of the second housing 402 and is fixedly connected to one end of the outer wall of the first screw 403. A placement frame 406 is fixedly installed on one end of the outer wall of the second slider 404, a placement plate 407 is fixedly installed on the bottom end of the inner wall of the placement frame 406, a mechanical micrometer 408 is arranged on the top of the placement plate 407, a measuring rod 409 is arranged on one side of the outer wall of the mechanical micrometer 408, and a rotating handle 410 is arranged on the other side of the mechanical micrometer 408. The top of the placement frame 406 is fixedly installed with a threaded sleeve 411, the inner wall of the threaded sleeve 411 is threadedly connected with a second screw 415, the output end of the second screw 415 penetrates the top of the placement frame 406, and is rotatably connected with an arc clamping plate 412, and the top of the second screw 415 is fixedly installed with a third rotating plate 414. The top of the arc clamping plate 412 is fixedly installed with a slide bar 413, and the top of the slide bar 413 movably penetrates the top of the placement frame 406. The placement frame 301 and the first housing 302 are both fixedly connected with the bottom plate 1, and the moving block 401 is movably inserted in the inner wall of the slide slot 2.

[0029] The effect achieved by the entire embodiment 2 is that the mechanical micrometer head 408 belongs to the prior art. By rotating the rotating handle 410, the measuring rod 409 on the mechanical micrometer head 408 can be moved close to or away from the displacement sensor. According to the position of the measuring end of the displacement sensor, the moving block 401 in the slide slot 2 is moved so that the measuring rod 409 is aligned with the measuring end of the displacement sensor. Then, the second rotating plate 405 is rotated, and the second rotating plate 405 drives the first screw 403 to rotate. The first screw 403 can adjust the height of the measuring rod 409 during the rotation process, so that the measuring rod 409 is aligned with the measuring end of the displacement sensor. The measuring end of the displacement sensor is aligned up and down. Through the cooperation between the two, the position of the measuring rod 409 can be adjusted so that the measuring rod 409 can be better aligned with the measuring end of the displacement sensor, thereby facilitating the calibration of the displacement sensor. When the mechanical micrometer head 408 needs to be fixed, the mechanical micrometer head 408 is first placed on the placement plate 407, and then the third rotating plate 414 is rotated. The third rotating plate 414 drives the second screw rod 415 to rotate in the threaded sleeve 411, thereby driving the arc clamping plate 412 to move downward until the mechanical micrometer head 408 is clamped and fixed.

[0030] Working principle: When the displacement sensor needs to be clamped, the displacement sensor is first placed on the placement frame 301, and then the first rotating plate 307 is rotated. The first rotating plate 307 drives the bidirectional screw 303 to rotate. During the rotation process, the bidirectional screw 303 drives the two first sliders 304 to approach each other, and the two first sliders 304 drive the two clamping plates 306 to approach each other until the displacement sensor is clamped and fixed. By adjusting the distance between the two clamping plates 306, displacement sensors of different sizes can be clamped and fixed, thereby The practicability of the device is improved. When the displacement sensor is clamped and fixed, the mechanical micrometer head 408 needs to be fixed. The mechanical micrometer head 408 is first placed on the placement plate 407, and then the third rotating plate 414 is rotated. The third rotating plate 414 drives the second screw rod 415 to rotate in the threaded sleeve 411, thereby driving the arc clamping plate 412 to move downward until the mechanical micrometer head 408 is clamped and fixed. When the measuring rod 409 on the mechanical micrometer head 408 needs to contact the measuring end of the displacement sensor, the displacement sensor can be used. The measuring end is adjusted by moving the moving block 401 in the slide 2 so that the measuring rod 409 is aligned with the measuring end of the displacement sensor left and right, and then the second rotating plate 405 is rotated. The second rotating plate 405 drives the first screw 403 to rotate. The first screw 403 can adjust the height of the measuring rod 409 during the rotation process so that the measuring rod 409 is aligned with the measuring end of the displacement sensor up and down. Through the cooperation of the two, the position of the measuring rod 409 can be adjusted so that the measuring rod 409 can be better aligned with the measuring end of the displacement sensor, thereby facilitating the calibration of the displacement sensor. When the adjustment is completed, the rotating handle 410 is rotated to make the measuring rod 409 on the mechanical micrometer head 408 approach or move away from the displacement sensor, and then the measuring rod 409 is moved toward the measuring end of the displacement sensor until the measuring rod 409 contacts the displacement sensor, and the value of the mechanical micrometer head 408 at this time is recorded as the zero value, and then the measuring rod 409 is moved. The displacement sensor measures the distance between the measuring rod 409 and the displacement sensor, and compares it with the moving distance of the measuring rod 409, so that the displacement sensor can be calibrated.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A displacement sensor calibration device, characterized in that: It comprises a bottom plate (1), the top of the bottom plate (1) is provided with a fixing mechanism (3), the top of the bottom plate (1) is provided with a slide groove (2), and the inner wall of the slide groove (2) is provided with a verification mechanism (4); The fixing mechanism (3) comprises a placing frame (301), a first housing (302) is arranged at the bottom end of the placing frame (301), a bidirectional screw (303) is movably inserted into the inner wall of the first housing (302), and two first sliders (304) are threadedly connected to the outer wall of the bidirectional screw (303), and the two first sliders (304) are both movably inserted into the inner wall of the first housing (302), and the outer walls of the two first sliders (304) are both fixedly installed with connecting rods (305), and the outer walls of the two connecting rods (305) are both fixedly installed with clamping plates (306), and the outer wall of the first housing (302) is movably inserted with a first rotating plate (307), and the output shaft of the first rotating plate (307) passes through the inner wall of the first housing (302) and is fixedly connected to one end of the outer wall of the bidirectional screw (303).

2. A displacement sensor calibration device according to claim 1, characterized in that: The verification mechanism (4) comprises a moving block (401), a second housing (402) being fixedly mounted on the top of the moving block (401), a first screw rod (403) being movably inserted into the inner wall of the second housing (402), a second slider (404) being threadedly connected to the outer wall of the first screw rod (403), and the second slider (404) being movably inserted into the inner wall of the second housing (402).

3. A displacement sensor calibration device according to claim 2, characterized in that: A second rotating plate (405) is movably inserted at the top of the second housing (402), and an output shaft of the second rotating plate (405) passes through the inner wall of the second housing (402) and is fixedly connected to one end of the outer wall of the first screw rod (403).

4. A displacement sensor calibration device according to claim 2, characterized in that: A placement frame (406) is fixedly installed on one end of the outer wall of the second sliding block (404), a placement plate (407) is fixedly installed on the bottom end of the inner wall of the placement frame (406), a mechanical micrometer head (408) is arranged on the top of the placement plate (407), a measuring rod (409) is arranged on one side of the outer wall of the mechanical micrometer head (408), and a rotating handle (410) is arranged on the other side of the mechanical micrometer head (408).

5. A displacement sensor calibration device according to claim 4, characterized in that: A threaded sleeve (411) is fixedly mounted on the top of the placement frame (406); a second screw rod (415) is threadedly connected to the inner wall of the threaded sleeve (411); an output end of the second screw rod (415) passes through the top of the placement frame (406) and is rotatably connected to an arc-shaped clamping plate (412); a third rotating plate (414) is fixedly mounted on the top of the second screw rod (415).

6. A displacement sensor calibration device according to claim 5, characterized in that: A sliding rod (413) is fixedly mounted on the top of the arc-shaped clamping plate (412), and the top of the sliding rod (413) movably penetrates the top of the placement frame (406).

7. A displacement sensor calibration device according to claim 2, characterized in that: The placement rack (301) and the first housing (302) are both fixedly connected to the bottom plate (1), and the moving block (401) is movably inserted into the inner wall of the slide groove (2).

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