Automatic image measuring instrument with adjusting function

Abstract

The invention discloses an automatic image measuring instrument with an adjusting function, and relates to the technical field of automatic image measurement, and the automatic image measuring instrument comprises a bearing plate and four supporting columns which are fixedly connected to the periphery of the upper end of the bearing plate in a rectangular shape; according to the invention, the analysis module simulates the linkage action, judges whether the movement speed is abnormal or not, analyzes the cooperation deviation in the linkage process if the movement speed is not abnormal, calls historical data to judge the influence value of the temperature and humidity change on the cooperation deviation if the cooperation deviation exists, substitutes the influence value into the temperature and humidity influence value, and judges the condition of the cooperation deviation again; the influence of temperature and humidity changes on the adjustment precision is reduced, compensation adjustment is actively performed according to the cooperation deviation, all mechanisms achieve accurate cooperation again, it is ensured that a lens of a measuring instrument can be accurately aligned with a measurement target all the time, and therefore measurement errors caused by the cooperation deviation are effectively reduced, and the reliability and consistency of measurement results are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic image measuring instrument, and particularly relates to an automatic image measuring instrument with adjusting function. BACKGROUND

[0002] In the fields of precision manufacturing, electronic components, medical devices and the like, the detection requirements for parameters such as size precision, geometric tolerance and the like of products are increasingly stringent, and the performance of the automatic image measuring instrument directly affects the product quality control efficiency and accuracy as a core equipment for realizing non-contact high-precision measurement. However, in the use process of the existing automatic image measuring instrument with adjusting function, the single guide rail and sliding block structure is adopted for horizontal and vertical movement of most devices, and the positioning precision deviation (the repeated positioning error is often more than ±3μm) is caused by the jamming or gap shaking in the movement process, especially when measuring micro electronic components (such as chip pins, the precision requirement is ±1μm), it is difficult to meet the detection requirements. Therefore, the above technical problems need to be solved and processed. SUMMARY

[0003] The present application relates to the technical field of automatic image measuring instrument, and particularly relates to an automatic image measuring instrument with adjusting function.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: an automatic image measuring instrument with adjusting function, comprising a supporting plate and four supporting columns which are fixedly connected to the upper end of the supporting plate in a rectangular shape, a fixed table is fixedly connected and installed on the upper end of the supporting plate, a horizontal movement mechanism is installed on one side of the upper end of the fixed table, and a vertical movement mechanism is installed on the other side of the upper end of the fixed table, and a lifting mechanism is installed on the upper end of the vertical movement mechanism and the horizontal movement mechanism. The automatic image measuring instrument is internally provided with a smart control assembly, and the smart control assembly comprises a collection module, an analysis module and an execution module. The collection module acquires image data collected by the automatic image measuring instrument in the adjusting process, and transmits the acquired image data to the analysis module. The analysis module receives the image data transmitted by the collection module, and performs preprocessing, simulates linkage action, determines whether the moving speed is abnormal, generates a moving speed abnormal signal if the moving speed is abnormal, and transmits the moving speed abnormal signal to the execution module; if the moving speed is not abnormal, it is determined whether there is a cooperative deviation in the linkage process; if there is a cooperative deviation, historical data is called to determine the influence value of temperature and humidity change on the cooperative deviation; the influence value is substituted into the determination of whether there is a cooperative deviation in the linkage process again; if it is still determined that there is a cooperative deviation, a moving speed compensation signal is generated, and the moving speed compensation signal and the deviation compensation time are transmitted to the execution module. An executing module receives the speed abnormality signal transmitted by the analyzing module and performs corresponding operations.

[0005] Preferably, the analyzing module performs the following steps for the analysis of the synergistic deviation caused by temperature and humidity: S1: Obtain historical data, divide the environmental temperature and humidity data corresponding to the synergistic deviation in the historical data into two data groups, arrange the synergistic deviation data in one data group in order according to temperature, arrange the synergistic deviation data in the other data group in order according to humidity, calculate the mean value of the synergistic deviation data under the same temperature / humidity, and calculate the difference between the synergistic deviation data under the same temperature / humidity and the mean value. , Set the fluctuation range of the synergistic deviation data ; S2: Obtain the mean value of the synergistic deviation data corresponding to the temperature / humidity data closest to the same temperature / humidity data , then the change of the synergistic deviation data caused by the unit temperature / humidity difference , is the change value of the temperature / humidity. S3: is the change of the synergistic deviation data caused by the unit temperature , and

[0006] Preferably, the analyzing module performs the following steps for the determination of the linkage abnormality: K1: Simulate the linkage action, obtain the number data of the gray block where the center position of the corresponding cross line on the target in each gray image is located, and record the acquisition time interval of the image data of the two gray blocks before and after the change when the number of the cross line center corresponding gray block changes ; K2: Establish a coordinate system with the row number and column number of the gray block as the horizontal and vertical coordinate axes and with a corner of the gray image as the coordinate origin, calculate the distance between the two coordinate points in the coordinate system according to the coordinate point positions of the gray block numbers before and after the change, and calculate the horizontal and vertical distances between the two coordinate points according to the coordinate data of the two coordinate points and ; calculate the horizontal and vertical moving speeds of the linkage action according to the horizontal and vertical distances and and the acquisition time interval . ​​​, record the corresponding time point of the change of linkage action, obtain the horizontal and vertical movement speed data in any time period before the corresponding time point, and then calculate the respective mean values and , compare the calculated mean values and with the set movement speed of the corresponding linkage action respectively, and the speed component in the horizontal and vertical directions. K3: if the mean speed in the corresponding direction is not within the range of , calculate the deviation caused by the change of temperature and humidity before and after the detection time, and sum the deviations caused by temperature and humidity; if the sum is positive, subtract the sum from the mean speed, and then re-determine the range; if the sum is negative, add the absolute value of the sum to the mean speed, and then re-determine the range. Preferably, the re-determination step of the analysis module is as follows: W1: if the mean speed in the corresponding direction is still not within the range of , determine that the linkage action is abnormal, and re-perform the simulation operation, is the speed component coefficient in the corresponding direction, is the speed fluctuation value; otherwise, determine that the movement speeds in the corresponding directions are and respectively. W2: according to the gray block number data corresponding to the movement of the cross line in the real-time detected image data, calculate the movement speed component data in the horizontal and vertical directions in the corresponding period, and compare the movement speed component data in the horizontal and vertical directions with the speed data and in the corresponding period respectively, if the speed data in one direction is not equal, determine that the movement speed is abnormal, generate a movement speed abnormal signal, and transmit the movement speed abnormal signal to the execution module.

[0007] Preferably, the analysis module performs the following steps for the analysis of the cooperative deviation caused by linkage: Q1: if the comparison results of the movement speed in the horizontal and vertical directions within the linkage action change time point are the same, compare the movement speeds in the horizontal and vertical directions before and after the change time point. Q2: if there is a deviation in the movement speed, calculate the total displacement deviation caused by the deviation of the movement speed in the horizontal and vertical directions, and divide the total displacement deviation by the movement speed of the corresponding movement mechanism after linkage to obtain the deviation compensation time , then generate a movement speed compensation signal, and transmit the movement speed compensation signal and the deviation compensation time to the execution module.

[0008] Preferably, the lateral movement mechanism comprises a fixed block fixedly installed at the end of the fixed table, one side of the fixed table is slidably installed with a second movement block, the first screw is rotatably installed in the second movement block, the driving pulley is fixedly installed on the first screw, the transmission belt is sleeved on the driving pulley, the other end of the transmission belt is sleeved on the driven pulley, and the first servo motor is installed in the second movement block on the side of the driven pulley.

[0009] Preferably, the vertical movement mechanism comprises a moving plate slidably installed at the end of the fixed block, one side of the moving plate is installed with a first movement block, the second servo motor is installed in the first movement block, the driving pulley is connected to the output end of the second servo motor, the second screw is rotatably installed above the driving pulley, the auxiliary pulley is installed on the second screw in the vertical direction of the driving pulley, and the driving belt is sleeved between the auxiliary pulley and the driving pulley.

[0010] Preferably, the second connecting block is installed on the second screw in a threaded connection mode, and the other end of the second connecting block is fixedly connected to one side of the moving plate.

[0011] Preferably, the first connecting block is installed on the first screw in a threaded connection mode, and the other end of the first connecting block is fixedly connected to one side of the fixed block.

[0012] Preferably, the lifting mechanism comprises a fixed plate fixedly installed on the supporting plate on one side of the moving plate, a positioning block is fixedly connected to one end of the fixed plate, a lifting groove is formed in the upward direction of the lower end of the positioning block, a positioning plate is fixedly connected to the inner side of the lifting groove, a lifting motor is installed on the upper end of the positioning plate and the inner side of the positioning block, the output end of the lifting motor penetrates through the positioning plate and is fixedly connected to the top end of the lifting screw, a lifting plate is connected to the lifting screw in a threaded connection mode, the lifting plate is slidably installed in the lifting groove, a connecting rod is fixedly connected to the lower end of the lifting plate in a ring-shaped and equidistant mode, and the other end of the connecting rod is fixedly connected to the automatic image measuring instrument.

[0013] Compared with the prior art, the present application has the following advantages: Through the cooperation of the first servo motor, the driving pulley, the transmission belt and the first screw, the jamming and shaking during lateral movement is reduced, the stability and positioning accuracy of lateral movement are improved, and high-precision lateral positioning is realized. Through the cooperation of the second servo motor, the driving pulley, the driving belt and the second screw, the stability of vertical movement is ensured, the accuracy of vertical positioning is improved, and high-precision vertical positioning is realized. Through the cooperation of the lifting motor, the lifting screw and the lifting plate, the measurement height is accurately adjusted, the height adjustment accuracy is improved, and multi-dimensional high-precision adjustment is realized. Finally, the problems of easy jamming and shaking during movement, insufficient positioning accuracy of the existing automatic image measuring instrument are solved. The linkage action is simulated by the analysis module to determine whether the moving speed is abnormal, if not, the collaborative deviation in the linkage process is analyzed, if there is a collaborative deviation, the historical data is called to determine the influence value of temperature and humidity change on the collaborative deviation, the temperature and humidity influence value is substituted, and the collaborative deviation is determined again; while reducing the influence of temperature and humidity change on the regulation accuracy, the collaborative deviation is actively compensated and regulated, each mechanism re-achieves accurate collaboration, and it is ensured that the lens of the measuring instrument can always accurately aim at the measurement target, so that the measurement error caused by the collaborative deviation is effectively reduced, and the reliability and consistency of the measurement result are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide further understanding of the present application, constitute a part of the application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings: Figure 1 The overall three-dimensional structure schematic diagram of the present application is provided; Figure 2 Another side overall three-dimensional structure schematic diagram of the present application is provided; Figure 3 The bottom view partial overall three-dimensional structure schematic diagram of the present application is provided; Figure 4 The overall three-dimensional structure schematic diagram of the supporting mechanism of the present application is provided; Figure 5 The top view cross-sectional structure schematic diagram of the present application is provided; Figure 6 The side view cross-sectional structure schematic diagram of the present application is provided; Figure 7 The overall three-dimensional structure schematic diagram of the lifting mechanism of the present application is provided; Figure 8 The system flowchart of the present application is provided.

[0015] In the drawing, the serial number is: 1, support column; 2, supporting plate; 3, fixed table; 4, fixed block; 5, moving plate; 6, first moving block; 7, second moving block; 8, fixed plate; 9, positioning block; 10, automatic image measuring instrument; 11, transparent plate; 12, first servo motor; 13, first screw rod; 14, first connecting block; 15, second connecting block; 16, second screw rod; 17, lifting motor; 18, positioning plate; 19, lifting plate; 20, lifting screw rod; 21, connecting rod; 22, second servo motor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0017] Embodiment 1: see Figures 1-7 The application discloses an automatic image measuring instrument with adjusting function, which comprises a supporting plate 2, four supporting columns 1 fixedly connected to the upper end of the supporting plate 2 in a rectangular shape, a fixed table 3 fixedly connected to the middle of the upper end of the supporting plate 2, a horizontal moving mechanism fixedly connected to one side of the upper end of the fixed table 3, a vertical moving mechanism fixedly connected to the other side of the upper end of the fixed table 3, a lifting mechanism fixedly connected to the upper end of the horizontal moving mechanism and the vertical moving mechanism, a foundation frame built by the supporting plate 2 and the supporting columns 1, and the fixed table 3, the horizontal moving mechanism, the vertical moving mechanism and the lifting mechanism, so that multi-directional adjustment and accurate measurement of the automatic image measuring instrument are facilitated. The horizontal moving mechanism comprises a fixed block 4 fixedly connected to the upper end of the fixed table 3, a second moving block 7 slidably connected to one side of the fixed table 3, a first screw rod 13 rotatably connected to the inside of the second moving block 7, a driving pulley sleeved on the first screw rod 13, a transmission belt sleeved on the driving pulley, a driven pulley sleeved on the other end of the transmission belt, a first servo motor 12 fixedly connected to the inside of the second moving block 7 on one side of the driven pulley, and the fixed block 4, the second moving block 7, the first screw rod 13, the driving pulley, the transmission belt, the driven pulley and the first servo motor 12, so that horizontal movement adjustment of the measuring related components is facilitated. The vertical moving mechanism comprises a moving plate 5 slidably connected to the upper end of the fixed block 4, a first moving block 6 fixedly connected to one side of the moving plate 5, a second servo motor 22 fixedly connected to the inside of the first moving block 6, a driving pulley clamped to the output end of the second servo motor 22, a second screw rod 16 rotatably connected to the upper end of the driving pulley, an auxiliary pulley vertically connected to the driving pulley on the second screw rod 16, and a driving belt sleeved between the driving pulley and the auxiliary pulley, and the moving plate 5, the first moving block 6, the second servo motor 22, the driving pulley, the second screw rod 16, the auxiliary pulley and the driving belt, so that vertical movement adjustment of the measuring related components is facilitated.

[0018] In the present invention, a second connecting block 15 is installed on the second screw 16 through a threaded connection, and the other end of the second connecting block 15 is fixedly connected to one side of the movable plate 5. The second connecting block 15 on the second screw 16 is fixedly connected to the movable plate 5, which facilitates the transmission of the power of the vertical moving mechanism to the movable plate 5; a first connecting block 14 is installed on the first screw 13 through a threaded connection, and the other end of the first connecting block 14 is fixedly connected to one side of the fixed block 4. The fixed block 4 and the movable plate 5 are slidably engaged, and a transparent plate 11 is installed on the upper end of the movable plate 5. The first connecting block 14 on the first screw 13 is fixedly connected to the fixed block 4, and the transparent plate 11 on the movable plate 5 is convenient to achieve the coordination of horizontal and vertical movement, and at the same time provide a transparent bearing surface for measurement; the lifting mechanism includes a first connecting block 14 fixedly installed on one side of the movable plate 5 A fixing plate 8 is arranged on the supporting plate 2 on the side, and one end of the fixing plate 8 is fixedly connected to a positioning block 9. A lifting groove is opened upward at the lower end of the positioning block 9, and a positioning plate 18 is fixed to the inside of the lifting groove. A lifting motor 17 is installed on the upper end of the positioning plate 18 and the inside of the positioning block 9. The output end of the lifting motor 17 passes through the positioning plate 18 and is fixed to the top of the lifting screw 20. The lifting screw 20 is connected to a lifting plate 19 by a thread. The lifting plate 19 is slidably installed inside the lifting groove, and a connecting rod 21 is fixed to the lower end of the lifting plate 19 at equal intervals in an annular manner. The other end of the connecting rod 21 is fixed to the automatic image measuring instrument 10. The height adjustment of the automatic image measuring instrument 10 is facilitated by the fixing plate 8, the positioning block 9, the lifting groove, the positioning plate 18, the lifting motor 17, the lifting screw 20, the lifting plate 19 and the connecting rod 21.

[0019] Example: See Figure 8 , the automatic image measuring instrument 10 is internally provided with an intelligent control component, which includes an acquisition module, an analysis module and an execution module; an acquisition module, which acquires the image data acquired by the automatic image measuring instrument 10 during the adjustment process and transmits the acquired image data to the analysis module; The analysis module receives the image data transmitted by the acquisition module, performs preprocessing, simulates the linkage action, and determines whether there is a coordination deviation during the linkage process. If there is a coordination deviation, it retrieves historical data to determine the impact of temperature and humidity changes on the coordination deviation. It substitutes the impact value and again determines whether there is a coordination deviation during the linkage process. If it is determined that there is still a coordination deviation, it generates a speed anomaly signal and transmits the speed anomaly signal to the execution module. Typical measurement trajectories are preset using motion control software to simulate the coordinated movements of the horizontal, vertical, and lifting mechanisms. During the simulation, a transparent plate with a high-precision positioning target (such as a micron-level crosshair) is set at the corresponding position. The target is then captured in real time using the lens of the automatic image measuring instrument. The target images collected in real time are arranged according to time, the multiple target images taken at the same time are subjected to gray scale processing, the images subjected to the gray scale processing are uniformly divided according to the size of the pixel blocks, and then the divided gray scale blocks are numbered according to the row number and column number and standard deviation are calculated, and the mean value and standard deviation are set as the fluctuation range , the gray scale data not within the fluctuation range is marked as an abnormal value, the abnormal value is removed, the mean value of the remaining gray scale data is calculated, the calculated mean value is taken as the gray scale data detected at the moment; The historical data is obtained, the environment temperature and humidity data corresponding to the collaborative deviation in the historical data is divided into two data groups, the collaborative deviation data in one data group is sequentially arranged according to the temperature size, the collaborative deviation data in the other data group is sequentially arranged according to the humidity size, the collaborative deviation data under the same temperature / humidity is called to calculate the mean value , and the difference between the collaborative deviation data under the same temperature / humidity and the mean value is calculated, the mode of the positive and negative values in the difference value is taken, and the difference value corresponding to the mode of the positive and negative values , is set as the fluctuation range of the collaborative deviation data ; the mean value of the collaborative deviation data corresponding to the temperature / humidity data closest to the same temperature / humidity data is obtained , the change of the collaborative deviation data caused by the unit temperature / humidity difference , is the change value of the temperature / humidity; is the change of the collaborative deviation data caused by the unit temperature, is the change of the collaborative deviation data caused by the unit humidity; In the practical application scene of the automatic image measuring instrument, the environmental temperature and humidity are dynamically changing, and these changes will have a complex impact on the mechanical structure, optical system, etc. of the measuring instrument, thereby causing the collaborative deviation; grouping the environmental temperature and humidity data corresponding to the collaborative deviation in the historical data, sorting by temperature and humidity respectively and then calculating the mean value, this operation is of great significance; from the statistical point of view, the mean value is a key indicator reflecting the trend in the data set; for example, when analyzing the influence of temperature on the collaborative deviation, grouping the collaborative deviation data in different temperature intervals (such as 10-20℃, 20-30℃) and calculating the mean value, it can intuitively show how the collaborative deviation gradually changes as the temperature rises or falls; assuming that the mean value of the collaborative deviation is 0.002μm at 10-20℃, and 0.003μm at 20-30℃, it can be preliminarily judged that the increase of temperature will make the collaborative deviation have a trend of increasing; Obtaining the mean value of the collaborative deviation corresponding to the similar temperature and humidity data, calculating the change of the collaborative deviation data caused by the unit temperature and humidity difference, which is the core link to realize accurate compensation; in the field of precision measurement, even a small change in temperature and humidity may cause measurement error; for example, the length of the metal guide rail of the measuring instrument may change by 0.0005μm due to thermal expansion and contraction when the temperature changes by 1℃; by calculating the collaborative deviation change corresponding to the unit temperature and humidity difference (such as 1℃ temperature difference, 1%RH humidity difference), a quantitative relationship model between temperature and humidity and collaborative deviation can be established; When simulating the linkage action, the number data of the gray block where the center position of the crosshair on the target in each gray image is obtained, when the number of the gray block corresponding to the center of the crosshair changes, the time interval of collecting the image data of the two gray blocks before and after the change is recorded ; taking the number of rows and columns of the gray block as the horizontal and vertical coordinate axes respectively, and taking a corner of the gray image as the coordinate origin to establish a coordinate system, according to the coordinate point positions of the gray block numbers before and after the change in the coordinate system, the distance between the two coordinate points is calculated, and the horizontal and vertical distances between the two coordinate points are calculated according to the coordinate data of the two coordinate points and ; according to the horizontal and vertical distances and and the time interval of collecting , the horizontal and vertical moving speeds of the linkage action are calculated and , the corresponding time points of the change of the linkage action are recorded, the horizontal and vertical moving speed data in any time period before the corresponding time point are obtained, and then the mean values and are calculated, and the calculated mean values and are respectively compared with the set moving speed Compare the speeds in the horizontal and vertical directions. If the mean speed in the corresponding direction is not If the range is within the range, the deviation caused by the temperature and humidity changes before and after the detection time is calculated, and the deviations caused by temperature and humidity are summed. If the sum is positive, the speed mean is subtracted from the sum and the range is re-determined; if the sum is negative, the speed mean is added to the absolute value of the sum and the range is re-determined; if the speed mean in the corresponding direction is still not within the range, the deviation caused by temperature and humidity is summed. If it is within the range of , the linkage action is judged to be abnormal and the simulation operation is repeated. is the velocity component coefficient in the corresponding direction, is the speed fluctuation value; otherwise, the moving speeds in the corresponding directions are determined to be and ; Velocity component coefficient in the corresponding direction , Respectively represent the horizontal and vertical directions; when When it indicates horizontal direction, express The component velocity in the lateral direction; when When it indicates vertical direction, express The vertical component of velocity; It is a quantitative reflection of the "motion stability boundary". Under ideal conditions, the moving speed of the measuring instrument should strictly follow the set value. However, in actual operation, electromagnetic interference of the motor, slight vibration of the transmission mechanism, etc. will cause small fluctuations in speed. The speed fluctuation value (= ) sets an allowable fluctuation range (such as setting the speed ±5% of the actual speed), when the actual speed average exceeds This range determines that the speed is abnormal; it acts as a "health warning line" for equipment movement, promptly detecting speed instability caused by mechanical wear, electrical failure, etc., ensuring the uniform speed of component movement during the measurement process, and thus ensuring the accuracy of measurement point acquisition. According to the grayscale block number data corresponding to the cross line movement in the real-time detected image data, the moving speed data in the horizontal and vertical directions of the corresponding time period is calculated, and the moving speed data in the horizontal and vertical directions is compared with the speed data of the corresponding time period. and Compare the two speeds in pairs. If the speed data in one direction is unequal, it is determined that the moving speed is abnormal, and a speed abnormality signal is generated and transmitted to the execution module. If the moving speed comparison results in horizontal and vertical directions are the same within the linkage action change time point, then compare the moving speed in horizontal and vertical directions before and after the change time point, if there is a moving speed deviation, then calculate the total displacement deviation caused by the moving speed deviation in horizontal and vertical directions (considering the case that the moving speed may be different before and after linkage, calculate the corresponding displacement distance before and after linkage respectively, then calculate the sum of the two displacement distances, which is recorded as total displacement deviation), and divide the total displacement deviation by the moving speed of the corresponding moving mechanism after linkage to obtain the deviation compensation time Then generate the moving speed compensation signal, and pass the moving speed compensation signal and the deviation compensation time to the execution module; It is a time regulator for realizing "precise cooperative motion"; in an automatic image measuring instrument, when multiple mechanisms such as horizontal, vertical and lifting mechanisms are linked, due to mechanical response delay, load difference and other factors, the time for each mechanism to reach the target position will deviate, which will cause the measuring lens to fail to accurately align with the measuring point, resulting in measurement error; the deviation compensation time Through the analysis of the cooperative deviation by the analysis module, the time value that a certain moving mechanism needs to start in advance is obtained; After receiving the moving speed abnormal signal, the execution module controls the moving mechanism to move at the set speed in advance before linkage occurs, so that the moving mechanism reaches the specified position at the set time. The moving mechanism that will be linked in advance reaches the specified position at the set time.

[0020] Working principle: when the application is used, first, the object to be measured is placed steadily on the transparent plate 11 at the upper end of the moving plate 5, and the object is ensured to be placed steadily and not to be displaced during the movement, thereby affecting the measurement accuracy, then the first servo motor 12 is started, the driving pulley is driven to rotate through the output end, then the driving pulley and the first screw rod 13 are driven to rotate synchronously through the transmission belt, so that when the first screw rod 13 rotates, the fixed block 4 slides along the second moving block 7 in the horizontal direction, then the fixed block 4 and the moving plate 5, the transparent plate 11 and the measured object above are moved horizontally through the movement of the second moving block 7, the adjustment of the horizontal and horizontal position of the measured object is realized, then the second servo motor 22 is started, the driving pulley is driven to rotate through the output end, the auxiliary pulley and the second screw rod 16 are driven to rotate through the driving belt, the moving plate 5 slides along the first moving block 6 in the vertical direction, the vertical position to be measured of the measured object is aligned with the lens of the automatic image measuring instrument 10 through the rotation of the second servo motor 22, the accurate positioning on the horizontal plane is completed, and at the same time, the distance between the lens of the instrument and the measured object can be adjusted by starting the lifting motor 17 to drive the lifting screw rod 20 to rotate, thereby driving the automatic image measuring instrument 10 to rise and fall synchronously through the connecting rod 21, so that a clear measurement image is obtained.

[0021] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. An automatic image measuring instrument with an adjustment function, comprising a supporting plate (2) and four rectangular support columns (1) fixedly connected to the upper end of the supporting plate (2), characterized in that: A fixed platform (3) is fixedly mounted on the middle portion of the upper end of the support plate (2), a horizontal moving mechanism is fixedly mounted on one side of the upper end of the fixed platform (3), and a vertical moving mechanism is mounted on the other side of the upper end of the fixed platform (3), and a lifting mechanism is mounted on the upper ends of the vertical moving mechanism and the horizontal moving mechanism; The automatic image measuring instrument (10) is internally provided with an intelligent control component, which includes an acquisition module, an analysis module and an execution module; an acquisition module for acquiring image data acquired by the automatic image measuring instrument (10) during the adjustment process and transmitting the acquired image data to the analysis module; The analysis module receives the image data transmitted by the acquisition module, performs preprocessing, simulates the linkage action, and determines whether there is an abnormality in the movement speed. If there is an abnormality, it generates a movement speed abnormality signal and transmits the movement speed abnormality signal to the execution module; if there is no abnormality, it determines whether there is a coordination deviation in the linkage process; if there is a coordination deviation, it retrieves historical data to determine the impact value of temperature and humidity changes on the coordination deviation; substitutes the impact value and determines whether there is a coordination deviation in the linkage process again; if it is determined that there is still a coordination deviation, it generates a movement speed compensation signal, and transmits the movement speed compensation signal and the deviation compensation time to the execution module; The execution module receives the abnormal speed signal transmitted by the analysis module and performs corresponding operations.

2. The automatic image measuring instrument with adjustment function according to claim 1, characterized in that: The steps for analyzing the coordinated deviation caused by temperature and humidity in the analysis module are as follows: S1: Obtain historical data, and divide the environmental temperature and humidity data corresponding to the collaborative deviation in the historical data into two data groups. The collaborative deviation data in one data group are arranged in order of temperature, and the collaborative deviation data in the other data group are arranged in order of humidity. The collaborative deviation data under the same temperature / humidity are retrieved and averaged. Calculate the collaborative deviation data and mean under the same temperature / humidity The difference between the positive and negative values ​​​​in the difference, take the mode of the positive and negative values ​​​​in the difference, and take the difference corresponding to the mode of the positive and negative numbers 、 Set the fluctuation range of collaborative deviation data ; S2: Get the mean of the collaborative deviation data corresponding to the temperature / humidity data closest to the same temperature / humidity data , then the collaborative deviation data changes caused by unit temperature / humidity difference , is the change value of temperature / humidity; S3: is the change in collaborative deviation data caused by unit temperature, The change in the collaborative deviation data caused by unit humidity.

3. The automatic image measuring instrument with adjustment function according to claim 1, characterized in that: The analysis module determines linkage anomalies in the following steps: K1: Simulate linkage action to obtain the number data of the grayscale block corresponding to the center position of the crosshairs on the target in each grayscale image. When the number of the grayscale block corresponding to the center of the crosshairs changes, record the acquisition time interval of the image data of the two grayscale blocks before and after the change. ; K2: Use the row and column numbers of the grayscale block number as the horizontal and vertical coordinate axes respectively, and establish a coordinate system with one corner of the grayscale image as the coordinate origin. Calculate the distance between the two coordinate points based on the coordinate point positions of the grayscale block number before and after the change in the coordinate system, and calculate the horizontal and vertical spacing between the two coordinate points based on the coordinate data of the two coordinate points. and ; According to the horizontal and vertical spacing and Time interval between collections Calculate the lateral movement speed of the linkage action and vertical movement speed , record the corresponding time point when the linkage action changes, obtain the horizontal and vertical movement speed data in any time period before the corresponding time point, and then calculate the respective averages and The calculated mean and Set movement speed for corresponding linkage actions Compare the speed components in the horizontal and vertical directions; K3: If the mean velocity in the corresponding direction is not If the speed is within the range of , the deviation caused by the temperature and humidity changes before and after the detection time is calculated, and the deviations caused by temperature and humidity are summed; if the sum is positive, the speed mean is subtracted from the sum and the range is re-determined; If the sum is negative, the speed mean is added to the absolute value of the sum and the range is re-determined.

4. The automatic image measuring instrument with adjustment function according to claim 3, characterized in that: The steps for re-determining the range of the analysis module are as follows: W1: If the mean velocity in the corresponding direction is still not If it is within the range of , the linkage action is judged to be abnormal and the simulation operation is repeated. is the velocity component coefficient in the corresponding direction, is the speed fluctuation value; otherwise, the moving speeds in the corresponding directions are determined to be and ; W2: Calculate the horizontal and vertical movement speed data of the corresponding time period according to the grayscale block number data corresponding to the cross line movement in the real-time detected image data, and compare the horizontal and vertical movement speed data with the speed data of the corresponding time period. and The two are compared. If the speed data in one direction is unequal, it is determined that the moving speed is abnormal, and a speed abnormality signal is generated and transmitted to the execution module.

5. The automatic image measuring instrument with adjustment function according to claim 2, characterized in that: The steps for analyzing the collaborative deviation caused by the linkage of analysis modules are as follows: Q1: If the comparison results of the horizontal and vertical speeds are the same within the time point of the linkage action change, then the comparison of the horizontal and vertical speeds before and after the change time point is performed; Q2: If there is a deviation in the moving speed, calculate the total displacement deviation caused by the deviation in the horizontal and vertical directions, and divide the total displacement deviation by the moving speed of the corresponding moving mechanism after linkage to obtain the deviation compensation time. , then generate a speed compensation signal, and combine the speed compensation signal and the deviation compensation time Passed to the execution module.

6. The automatic image measuring instrument with adjustment function according to claim 1, characterized in that: The transverse moving mechanism comprises a fixed block (4) fixedly mounted on the upper end of a fixed platform (3); a second moving block (7) is slidably mounted on one side of the fixed platform (3); a first screw (13) is rotatably mounted inside the second moving block (7); a driving pulley is fixedly sleeved on the first screw (13); a transmission belt is sleeved on the driving pulley; the other end of the transmission belt is sleeved on a driven pulley; a first servo motor (12) is mounted in the second moving block (7) on one side of the driven pulley.

7. The automatic image measuring instrument with adjustment function according to claim 6, characterized in that: The vertical moving mechanism comprises a moving plate (5) slidably mounted on the upper end of a fixed block (4); a first moving block (6) is mounted on one side of the moving plate (5); a second servo motor (22) is mounted inside the first moving block (6); a driving pulley is clamped at the output end of the second servo motor (22); a second screw (16) is rotatably mounted above the driving pulley; an auxiliary pulley is mounted on the second screw (16) in a vertical direction to the driving pulley; a driving belt is sleeved between the auxiliary pulley and the driving pulley.

8. The automatic image measuring instrument with adjustment function according to claim 7, characterized in that: A second connecting block (15) is mounted on the second screw rod (16) via a threaded connection, and the other end of the second connecting block (15) is fixedly connected to one side of the movable plate (5).

9. The automatic image measuring instrument with adjustment function according to claim 6, characterized in that: A first connecting block (14) is mounted on the first screw rod (13) via a threaded connection. The other end of the first connecting block (14) is fixed to one side of the fixed block (4). The fixed block (4) is slidably engaged with the movable plate (5). A transparent plate (11) is mounted on the upper end of the movable plate (5).

10. The automatic image measuring instrument with adjustment function according to claim 9, characterized in that: The lifting mechanism comprises a fixed plate (8) fixedly mounted on a supporting plate (2) on one side of a movable plate (5), a positioning block (9) being fixedly mounted on one end of the fixed plate (8), a lifting slot being upwardly opened at the lower end of the positioning block (9), a positioning plate (18) being fixedly mounted on the inner side of the lifting slot, a lifting motor (17) being mounted on the upper end of the positioning plate (18) and the inner side of the positioning block (9), an output end of the lifting motor (17) passing through the positioning plate (18) and being fixedly mounted on the top end of a lifting screw (20), a lifting plate (19) being connected to the lifting screw (20) by a thread, the lifting plate (19) being slidably mounted inside the lifting slot, and a connecting rod (21) being fixedly mounted on the lower end of the lifting plate (19) at equal intervals in an annular manner, and the other end of the connecting rod (21) being fixedly mounted on the automatic image measuring instrument (10).

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