Intelligent calibration device for stay wire type displacement sensor

Abstract

The utility model discloses an intelligent calibration device for a stay wire type displacement sensor, which belongs to the technical field of intelligent calibration devices and is characterized in that one end of a grating ruler is provided with a movable sliding rail, and the grating ruler and the movable sliding rail are provided with a three-axis adjustable workbench I and a three-axis adjustable workbench II; a camera device is installed between the first three-axis adjustable workbench and the second three-axis adjustable workbench, adjusting assemblies are installed on the first three-axis adjustable workbench and the second three-axis adjustable workbench, the camera device is installed on a lifting adjusting structure and connected in a lifting mode, the linear displacement sensor is installed and fixed stably, verified metrological characteristic data are reliable, and the calibration accuracy is high. The system can be used for checking various linear displacement sensors, electric and automatic combination is achieved, the system is rich and diversified in function, through the visual recognition technology and automatic checking, checking efficiency is effectively improved, data are automatically analyzed, the system is in butt joint with a certificate making fusion platform, paperless operation is achieved, and image collection, adjustment and moving operation structures are integrated; and adjustment and movement are more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of intelligent calibration device of pull wire type displacement sensor, belong to intelligent calibration device technical field. BACKGROUND

[0002] Prior art has pull wire type displacement sensor intelligent calibration device, such as the linear displacement sensor calibration device disclosed in application No. 202420698723.2, including L type frame, the L type frame one side is fixedly connected with support frame, support frame is clamped with sensor body, support plate is fixedly connected in the end of support frame, stroke verification assembly is slidably connected on support plate, stroke verification assembly is connected with the end of sensor body, L type frame side wall is fixedly connected with fixed grid, stroke verification assembly is slidably connected with fixed grid, support frame is fixedly connected with bracket at lower end, plug rod is slidably connected in the middle of bracket, plug rod upper end cooperates with the middle of fixed grid, through the cooperation of stroke verification assembly and sensor output end, the stroke accuracy of sensor body is detected, if sensor output rod deformation will pass through connecting ring and drive plug rod to lift in fixed grid, by observing the motion state of plug rod in fixed grid, whether the output rod of sensor body is damaged and deformed can be verified, and the functionality is stronger.

[0003] Prior art is through support frame clamped with sensor body, stroke verification assembly, L type frame side wall is fixedly connected with fixed grid ring and through the cooperation of stroke verification assembly and sensor output end, the stroke accuracy of sensor body is detected, if sensor output rod deformation will pass through connecting ring and drive plug rod to lift in fixed grid, by observing the motion state of plug rod in fixed grid, whether the output rod of sensor body is damaged and deformed can be verified, and the functionality is stronger.

[0004] Based on retrieval, we find that the prior art still has the following problems:

[0005] 1. The shape of pull wire type displacement sensor is irregular, and it is difficult to fix and clamp the standard device required by the specification for calibration.

[0006] 2. During calibration, the displacement to be measured can only be manually calibrated by using the standard device required by the specification, and it is difficult to accurately obtain the measured value consistent with the forward and reverse stroke, and it is difficult to obtain repeatability and return error and other measurement characteristics.

[0007] 3. The data reading of measured value and standard value during calibration requires constant stopping and viewing on both sides, and then recording, and then manually operating the next measurement point. It takes at least 30 minutes or more to calibrate one linear displacement sensor, and the efficiency is low.

[0008] Based on the above problems, therefore, a pull wire type displacement sensor intelligent calibration device is needed to improve the above problems. UTILITY MODEL CONTENTS

[0009] The utility model discloses a main purpose is to provide the intelligent check device of stay wire type displacement sensor.

[0010] The utility model discloses a main purpose can reach by adopting following technical scheme:

[0011] Stay wire type displacement sensor intelligent check device, including the stay wire type displacement sensor intelligent check device operating platform for placing,

[0012] Stay wire type displacement sensor intelligent check device operating platform fixedly installed with grating ruler, and one end of grating ruler is installed with mobile slide rail, and grating ruler and mobile slide rail are installed with three -axis adjustable workstation no. 1 and three -axis adjustable workstation no. 2, and three -axis adjustable workstation no. 1 and three -axis adjustable workstation no. 2 are installed with camera device between them,

[0013] Three -axis adjustable workstation no. 1 and three -axis adjustable workstation no. 2 are installed with adjusting assembly, and camera device is installed on the lifting adjustment structure and is connected by lifting.

[0014] Preferably, the adjusting assembly includes an up-down moving mechanism, a left-right moving mechanism, a front-back moving mechanism, and a moving mechanism.

[0015] Three -axis adjustable workstation no. 1 is installed on the moving mechanism, and the up-down moving mechanism is installed on one side of three -axis adjustable workstation no. 1, and the left-right moving mechanism is installed at the bottom of the up-down moving mechanism, and the front-back moving mechanism is installed on the front side of three -axis adjustable workstation no. 1.

[0016] Preferably, three -axis adjustable workstation no. 1, the camera device, and three -axis adjustable workstation no. 2 are connected by a manual rocker arm.

[0017] Preferably, the camera device moves up and down along the up-down moving mechanism, and the camera device has a splicing structure.

[0018] Preferably, three -axis adjustable workstation no. 1 and three -axis adjustable workstation no. 2 are used in combination, the stay wire type displacement sensor intelligent check device operating platform is installed on a support leg, and a supporting leg is installed at the bottom of the support leg.

[0019] Preferably, the up-down moving mechanism, the left-right moving mechanism, and the front-back moving mechanism move along the XYZ axis.

[0020] The utility model discloses a main purpose can reach by adopting following technical scheme:

[0021] The utility model provides a stay wire type displacement sensor intelligent check device,

[0022] 1) For the installation and fixation of linear displacement sensor, the measurement characteristic data of the calibration is reliable;

[0023] 2) It can be used for the check of various linear displacement sensors, and it is electrically and automatically combined, and it is rich in functions;

[0024] 3) Through visual identification technology and automatic checking, the checking efficiency is effectively improved;

[0025] 4) Data automatic analysis, docking with the certificate making fusion platform, realizing paperless operation;

[0026] 5) Realizing that the image acquisition, adjustment and moving operation structure are integrated, and the adjustment and movement are more stable. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a preferred embodiment of the whole three-dimensional structure schematic diagram of the device of the pull wire type displacement sensor intelligent checking device according to the utility model;

[0028] Figure 2 It is a preferred embodiment of the pull rope displacement structure schematic diagram of the pull wire type displacement sensor intelligent checking device according to the utility model;

[0029] Figure 3 It is a preferred embodiment of the local schematic diagram of the pull wire type displacement sensor intelligent checking device according to the utility model.

[0030] In the drawing: 1, pull wire type displacement sensor intelligent checking device operation table; 101, support leg; 102, supporting leg; 2, three-axis adjustable workbench one; 201, up-down moving mechanism; 202, left-right moving mechanism; 203, front-rear moving mechanism; 204, moving mechanism; 205, grating ruler; 3, camera device; 301, lifting adjustment structure; 4, three-axis adjustable workbench two; 401, moving slide rail; 5, manual rocker. DETAILED DESCRIPTION

[0031] In order to make the technical personnel in the art more clear and definite technical scheme of the utility model, the utility model is described in further detail below in combination with examples and drawings, but the implementation manner of the utility model is not limited to this.

[0032] As shown in Figure 1 - Figure 3 The pull wire type displacement sensor intelligent checking device provided by the embodiment includes a pull wire type displacement sensor intelligent checking device operation table 1 for placing;

[0033] The grating ruler 205 is fixedly installed on the pull wire type displacement sensor intelligent checking device operation table 1, one end of the grating ruler 205 is installed with the moving slide rail 401, the grating ruler 205 and the moving slide rail 401 are installed with the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, and the camera device 3 is installed between the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4;

[0034] The three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4 are provided with adjusting assemblies, and the camera device 3 is installed on the lifting adjusting structure 301 in a lifting connection.

[0035] The adjusting assembly comprises an up-down moving mechanism 201, a left-right moving mechanism 202, a front-rear moving mechanism 203 and a moving mechanism 204.

[0036] The three-axis adjustable workbench one 2 is installed on the moving mechanism 204, the three-axis adjustable workbench one 2 is provided with the up-down moving mechanism 201 on one side, the up-down moving mechanism 201 is provided with the left-right moving mechanism 202 at the bottom, and the front-rear moving mechanism 203 is installed on the front side of the three-axis adjustable workbench one 2.

[0037] Firstly, the two XYZ-direction adjustable positioning workbenches, the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, are placed on the pull-wire displacement sensor intelligent calibration device operation table 1, then when detection is needed, one of the workbenches is fixed on the device table surface for fixing the sensor body, and the other workbench is fixed on the sliding guide rail and is controlled to move by a servo motor, the sensor can be measured and moved by a clamping device, and meanwhile, the pull-wire displacement sensor is taken as a starting point, and different measuring fixtures are developed for different measurements, so as to realize calibration of various types of displacement sensors.

[0038] The workbenches, the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, on the guide rail are controlled to move by controlling the servo motor to run, the digital display grating ruler automatically calculates the movement distance, the calibration points are input according to the calibration specification, the program is started, and the calibration points of each positive and negative stroke are automatically positioned, the calibration of each position point is completed, in the effective measurement range of the equipment (0-1000) mm, the accuracy data of whether the measured linear displacement sensor repeatability meets 0.1% or not within 0.5% is realized, the linear displacement sensor body is fixed and installed on the XYZ three-axis adjustable workbench, the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, the pull-wire measurement is fixed on the other three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4 through a customized fixture, the measurement center is adjusted by a quick alignment device, the linear displacement sensor is zeroed after the initial position is adjusted by manually adjusting the up-down moving mechanism 201, the left-right moving mechanism 202 and the front-rear moving mechanism 203.

[0039] The visual image acquisition technology is used to the platform, the visual image acquisition technology is used, the sensor display value is automatically identified and read, the data processing is carried out through the calibration software and the standard value of the grating ruler, the measurement characteristics such as the sensor indication error and the repeatability are calculated, and the original calibration record is automatically recorded, the stable, reliable, efficient calibration and inspection and the generation of the calibration certificate are realized, the control software is opened, the online control and the image identification are started, and the corresponding calibration points, the calibration times, the test directions, the stable time, the return distance and the like are input, the zero is cleared, and then the operation is started, the device is paused when running to each corresponding calibration point, the measured value is identified, the identified data is automatically input into the corresponding original record table through the computer system, after the calibration of all the calibration points is completed, the software automatically analyzes the data, and the final calibration result is obtained.

[0040] The three-axis adjustable table one 2, the camera device 3 and the three-axis adjustable table two 4 are connected by the manual rocker 5.

[0041] The camera device 3 moves up and down along the up-and-down moving mechanism 201, and the camera device 3 is a splicing structure.

[0042] The three-axis adjustable table one 2 and the three-axis adjustable table two 4 are used in cooperation, the pull-wire type displacement sensor intelligent calibration device operation table 1 is installed on the supporting leg 101, and the supporting leg 101 is provided with the supporting leg 102 at the bottom.

[0043] The up-and-down moving mechanism 201, the left-and-right moving mechanism 202 and the front-and-back moving mechanism 203 move along the XYZ axis.

[0044] As shown in Figure 1 - Figure 3 The working process of the pull-wire type displacement sensor intelligent calibration device provided by the embodiment is as follows:

[0045] Step 1: first, the two XYZ direction adjustable positioning worktables, the three-axis adjustable table one 2 and the three-axis adjustable table two 4 are placed on the pull-wire type displacement sensor intelligent calibration device operation table 1, then when detection is needed, one of the worktables is fixed on the device table for fixing the sensor body, and the other worktable is fixed on the sliding guide and is controlled to move by the servo motor, the sensor can be measured and moved by the clamping device, and at the same time, the pull-wire type displacement sensor is taken as a starting point, and different measurement tooling fixtures are developed for different types of displacement sensors, so that the calibration and inspection of various types of displacement sensors are realized;

[0046] Step 2: Control the movement of the three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4 on the guide rail by controlling the servo motor, the digital grating ruler automatically calculates the movement distance, inputs the calibration points according to the calibration specification, and automatically locates to the calibration points of each positive and negative stroke after starting the program, completes the calibration of each position point, realizes the accuracy of 0.5% within the effective measurement range of the device (0-1000) mm, and whether the repeatability of the measured linear displacement sensor meets 0.1% or not, etc. Various measurement characteristics, by fixing the linear displacement sensor body on the XYZ three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, fixing the linear measurement by custom fixture on the other three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4, adjusting the measurement center with the quick alignment device, manually adjusting the up-down moving mechanism 201, left-right moving mechanism 202 and front-back moving mechanism 203 to adjust the starting position, and then zeroing the linear displacement sensor;

[0047] Step 3: Use visual image acquisition technology to interface the platform, automatically identify and read the sensor display value through the use of visual image acquisition technology, process data with the grating ruler standard value through the calibration software, calculate the sensor indication error, repeatability and other measurement characteristics and automatically record the original calibration record, realize stable, reliable and efficient calibration and generate calibration certificate, open the control software, input the corresponding calibration points, calibration times, test direction, stable time, return distance and other parameters after starting online control and image recognition, zero after starting operation, pause when the device runs to each corresponding calibration point, identify the measured value, automatically input the identified data into the corresponding original record form through the computer system, complete the calibration of all calibration points, and the software automatically analyzes the data to get the final calibration result.

[0048] Embodiment

[0049] As shown in Figure 1 - Figure 3 First, place two XYZ direction adjustable positioning workbenches three-axis adjustable workbench one 2 and three-axis adjustable workbench two 4 on the linear displacement sensor intelligent calibration device operation table 1, then when needed, fix one of the workbenches on the device table for fixing the sensor body, and the other workbench is fixed on the sliding guide controlled by the servo motor, which can measure and move the sensor through the clamping device, and at the same time, taking the linear displacement sensor as the starting point, develop tooling fixtures for different measurements to realize calibration of various types of displacement sensors.

[0050] The three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4 on the guide rail are controlled to move by controlling the operation of the servo motor, the digital display grating ruler automatically calculates the movement distance, the calibration points are input according to the calibration specification, the program is started to automatically position to the calibration points of each positive and negative stroke, the calibration of each position point is completed, in the effective measurement range of the equipment (0-1000) mm, the accuracy of whether the measured linear displacement sensor repeatability meets 0.1% or less within 0.5% is realized, the linear displacement sensor body is fixedly installed on the XYZ three-axis adjustable workbench one 2 and the XYZ three-axis adjustable workbench two 4, the wire measurement is fixed on the other three-axis adjustable workbench one 2 and the three-axis adjustable workbench two 4 through the customized clamp, the measurement center is adjusted by the quick alignment device, the linear displacement sensor is zeroed after the initial position is adjusted by manually adjusting the up-down moving mechanism 201, the left-right moving mechanism 202 and the front-back moving mechanism 203;

[0051] The visual image acquisition technology is used to the platform, the sensor display value is automatically recognized and read through the use of the visual image acquisition technology, the data processing is carried out between the calibration software and the grating ruler standard value, the sensor indication error, the repeatability and other measurement characteristics are calculated, and the original calibration record is automatically recorded, the stable, reliable, efficient calibration and the generation of the calibration certificate are realized, the control software is opened, the online control and the image recognition are started, the corresponding calibration points, the calibration times, the test direction, the stable time, the return distance and other parameters are input, the zero is cleared, and the operation is started, the device is paused when running to each corresponding calibration point, the measured value is recognized, the recognized data is automatically input into the corresponding original record form through the computer system, after the calibration of all calibration points is completed, the software automatically analyzes the data to obtain the final calibration result.

[0052] The above is only further embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the conception of the present application within the disclosed range, which belongs to the protection scope of the present application.

Claims

1. A pull-wire displacement sensor intelligent calibration device, comprising a pull-wire displacement sensor intelligent calibration device operating table (1) for placement; characterized in that A grating ruler (205) is fixedly installed on the pull-wire displacement sensor intelligent calibration device operating table (1), one end of the grating ruler (205) is installed with a moving slide rail (401), a three-axis adjustable workbench one (2) and a three-axis adjustable workbench two (4) are installed on the grating ruler (205) and the moving slide rail (401), a camera device (3) is installed between the three-axis adjustable workbench one (2) and the three-axis adjustable workbench two (4); A adjusting assembly is installed on the three-axis adjustable workbench one (2) and the three-axis adjustable workbench two (4), and the camera device (3) is installed on a lifting adjusting structure (301) in a lifting connection.

2. The guyed displacement sensor smart verification apparatus of claim 1, wherein: The adjusting assembly comprises an up-down moving mechanism (201), a left-right moving mechanism (202), a front-back moving mechanism (203) and a moving mechanism (204); The three-axis adjustable workbench one (2) is installed on the moving mechanism (204), the three-axis adjustable workbench one (2) is installed with the up-down moving mechanism (201) on one side, the up-down moving mechanism (201) is installed with the left-right moving mechanism (202) at the bottom, and the front side of the three-axis adjustable workbench one (2) is installed with the front-back moving mechanism (203).

3. The guyed displacement sensor smart verification apparatus of claim 2, wherein: The three-axis adjustable workbench one (2), the camera device (3) and the three-axis adjustable workbench two (4) are operated and connected by a manual rocker (5).

4. The guyed displacement sensor smart verification apparatus of claim 3, wherein: The camera device (3) moves up and down along the up-down moving mechanism (201), and the camera device (3) is a splicing structure.

5. The guyed displacement sensor smart verification apparatus of claim 4, wherein: The three-axis adjustable workbench one (2) and the three-axis adjustable workbench two (4) are used in cooperation, the pull-wire displacement sensor intelligent calibration device operating table (1) is installed on a supporting leg (101), and the supporting leg (101) is installed with a supporting foot (102) at the bottom.

6. The guyed displacement sensor smart verification apparatus of claim 5, wherein: The up-down moving mechanism (201), the left-right moving mechanism (202) and the front-back moving mechanism (203) move along the XYZ axes.

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