Intelligent detection method and system for high-temperature deformation of cylindrical workpiece

Abstract

The invention discloses an intelligent detection method and system for high-temperature deformation of a cylindrical workpiece, and belongs to the technical field of workpiece surface deformation detection, and the detection method comprises the steps: arranging a dial indicator at a corresponding position; the workpiece is heated; the temperature of the workpiece is detected; and the dial indicator reciprocates between the detection position and the separation position, and when the dial indicator moves to the detection position, the dial indicator can be in contact with the detection point. The dial indicator is arranged at the position corresponding to the detection point, then the workpiece is heated, the dial indicator is controlled to move between the detection position and the separation position in a reciprocating mode, the dial indicator can make contact with the detection point when the dial indicator is located at the detection position, and therefore deformation of the detection point is detected. Since the dial indicator performs intermittent detection on deformation of the detection point, long-time contact between the dial indicator and the workpiece is avoided, so that the influence of over-high temperature on the precision of a sensor in the dial indicator is avoided, and the detection precision of the dial indicator is improved.

Description

Technical Field

[0001] This application belongs to the field of workpiece surface deformation detection technology, specifically relating to an intelligent detection method and system for high-temperature deformation of cylindrical workpieces. Background Technology

[0002] In aerospace, energy, and precision chemical industries, cylindrical workpieces are widely used as critical components in extreme high-temperature and high-pressure environments. Their performance and reliability directly affect the safe and stable operation of the entire equipment system. Under prolonged exposure to high temperatures, cylindrical workpieces undergo thermal expansion and creep, resulting in significant geometric deformations such as radial expansion or changes in ellipticity. If these deformations exceed design tolerances, they can range from affecting fit accuracy and reducing work efficiency to potentially causing structural failure and serious accidents. Therefore, accurate detection of deformation in cylindrical workpieces under high-temperature conditions is crucial for product quality control and predictive equipment maintenance.

[0003] To achieve product quality control and predictive equipment maintenance, cylindrical workpieces are typically heated in a laboratory to a high-temperature environment suitable for operation. The surface deformation of the workpiece is then measured using a dial indicator. The deformation at the corresponding temperature allows for optimization of the product manufacturing process and prediction of future deformation during use, facilitating predictive maintenance. However, currently, when measuring deformation with a dial indicator, the high temperature of the workpiece transfers heat to the indicator, affecting the accuracy of the sensor and thus the overall measurement precision. Summary of the Invention

[0004] The technical problem this application aims to solve is that when existing dial indicators are used to detect the deformation of the surface of cylindrical workpieces, the high temperature of the cylindrical workpiece will transfer heat to the dial indicator in contact with it, affecting the accuracy of the sensor inside the dial indicator, and thus affecting the detection accuracy. In order to solve this technical problem, this application provides an intelligent detection method and system for high-temperature deformation of cylindrical workpieces that can guarantee detection accuracy.

[0005] The technical solution proposed in this application is as follows: A method for intelligent detection of high-temperature deformation of cylindrical workpieces includes the following steps: Setting up the dial indicator: Place the dial indicator at the position corresponding to the inspection point on the workpiece; Heating: Heating the workpiece; Temperature detection: Detecting the temperature of the workpiece; Deformation detection: The dial indicator is moved back and forth between the detection position and the separation position. When the dial indicator moves to the detection position, it can contact the detection point; when the dial indicator moves to the separation position, it separates from the workpiece.

[0006] Furthermore, it also includes the following steps: 3D inspection: Inspecting the 3D data of a workpiece using a scanner; Among them, the number of deformation detections was greater than the number of 3D detections.

[0007] Furthermore, it also includes the following steps: Data verification: Compare deformation detection data with 3D data within the same temperature range. If the data deviation is greater than the preset deviation, repeat the experiment; if the data deviation is less than the preset deviation, plot the graph. Graphical plotting: Based on temperature data and deformation detection data, plot the first deformation curve of the detection point, and based on temperature data and three-dimensional data, plot the second deformation curve of other points on the workpiece.

[0008] Furthermore, it also includes the following steps: Graphical comparison: Compare the first deformation curve and the second deformation curve.

[0009] Furthermore, the steps for setting up a dial indicator include: Determine the location of the inspection points on the workpiece; Adjust the position of the dial indicator by moving the component until the dial indicator corresponds to the detection point; The dial indicator is driven to approach the workpiece by the first adjustment drive until the dial indicator contacts the detection point. The dial indicator is driven away from the workpiece by the second adjustment drive.

[0010] Furthermore, in the deformation detection at the detection point: The dial indicator is driven to reciprocate between the detection position and the separation position by the second adjustment drive.

[0011] A smart detection system for high-temperature deformation of cylindrical workpieces includes: Support base, used to support the workpiece; A heating assembly, disposed on the support base, is used to heat the workpiece; A temperature detection component is used to detect the temperature at multiple temperature measurement locations on a workpiece, wherein the multiple temperature measurement locations include detection points; An adjustment mechanism and a dial indicator are provided. The adjustment mechanism is connected to the dial indicator. The adjustment mechanism can drive the dial indicator to move to a position corresponding to the detection point on the workpiece, and can drive the dial indicator to reciprocate between the detection position and the separation position. Specifically, when the dial indicator moves to the detection position, the dial indicator can contact the detection point; when the dial indicator moves to the separation position, the dial indicator separates from the workpiece.

[0012] Furthermore, it also includes a scanner, wherein the heating assembly is at least partially disposed at the bottom of the workpiece, and the scanner is capable of scanning at least the upper half of the workpiece to obtain three-dimensional data of the workpiece.

[0013] Furthermore, the adjustment mechanism includes a moving component and an adjusting component. The moving component is connected to the adjusting component to drive the adjusting component to reciprocate along the axial and vertical directions of the workpiece. The adjusting component is connected to the dial indicator to drive the dial indicator to move closer to and further away from the workpiece. The adjusting component can also drive the dial indicator to reciprocate between the detection position and the separation position.

[0014] Furthermore, the adjustment assembly includes a first adjustment drive and a second adjustment drive. The moving assembly is connected to the first adjustment drive, and the first adjustment drive is connected to the second adjustment drive to drive the second adjustment drive to move closer to and further away from the workpiece. The second adjustment drive can drive the dial indicator to reciprocate between the detection position and the separation position.

[0015] The above-described intelligent detection method and system for high-temperature deformation of cylindrical workpieces first identifies the detection points on the workpiece. Then, a dial indicator is positioned corresponding to each detection point. Next, the workpiece is heated, and its temperature is monitored. Simultaneously, the dial indicator is controlled to reciprocate between the detection position and the separation position. When in the detection position, the dial indicator contacts the detection point, thus detecting the deformation at that point. Because the dial indicator frequently contacts and separates from the detection point during the detection process, the deformation at the detection point is detected intermittently, avoiding prolonged contact between the dial indicator and the workpiece. This reduces the heat transferred to the dial indicator, preventing excessively high temperatures from affecting the accuracy of the sensor inside the dial indicator and improving the detection accuracy of the dial indicator.

[0016] In addition, by scanning the workpiece in three dimensions, three-dimensional data of the workpiece at different temperatures can be obtained. By comparing the three-dimensional data at different temperatures, the overall deformation of the workpiece can be obtained. This can be used to verify the detection accuracy of the dial indicator, and the deformation trend of the detection point can be compared and analyzed with the deformation trend of other points to determine the overall high-temperature deformation law of the workpiece. This enables high-precision and intelligent detection of workpiece deformation in high-temperature environments, improving the efficiency and reliability of detection. Attached Figure Description

[0017] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of an intelligent detection system for high-temperature deformation of cylindrical workpieces provided in an embodiment of this application; Figure 2 for Figure 1 The diagram shows the structure of the dial indicator in the intelligent detection system for high-temperature deformation of cylindrical workpieces. Figure 3 This is a flowchart of an intelligent detection method for high-temperature deformation of cylindrical workpieces provided in an embodiment of this application.

[0019] Label Explanation: 20. Workpiece; 11. Support; 12. Temperature detection component; 13. Dial gauge; 14. Second adjustment drive component; 15. Mounting base; 16. Scanner; 17. Movable mechanism; 18. Control mechanism. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] On the one hand, this application provides an intelligent detection system for high-temperature deformation of cylindrical workpieces, which can detect the deformation of cylindrical workpieces in high-temperature environments and ensure the detection accuracy of workpiece deformation.

[0027] like Figure 1 and Figure 2 As shown, in one embodiment, the detection system includes a support 11, a heating component, a temperature detection component 12, an adjustment mechanism, and a dial gauge 13.

[0028] The support base 11 is used to support the workpiece 20. Specifically, the support base 11 has a placement groove on which the cylindrical workpiece 20 is placed horizontally. A heating component is disposed on the support base 11 to heat the workpiece 20, simulating the high-temperature environment of the workpiece 20 during subsequent use. A temperature detection component 12 is used to detect the temperature of the workpiece 20. Specifically, the temperature detection component 12 detects the temperature at multiple temperature measurement points on the workpiece 20, including a detection point. An adjustment mechanism is connected to a dial indicator 13, and the adjustment mechanism can drive the dial indicator 13 to move to the position corresponding to the detection point on the workpiece 20, and can also drive the dial indicator 13 to reciprocate between the detection position and the separation position.

[0029] When dial indicator 13 moves to the detection position, it can contact the detection point to detect deformation. When dial indicator 13 moves to the separation position, it can separate from the workpiece 20. Specifically, before heating the workpiece 20, dial indicator 13 can be moved to the detection position, where it can contact the detection point. The reading of dial indicator 13 at this time can be recorded or zeroed, using its current position as a reference. Subsequent movement of dial indicator 13 between the detection and separation positions, reciprocating between these two fixed positions, ensures that dial indicator 13 can reach the detection position each time a test is performed, thus ensuring detection accuracy.

[0030] To facilitate understanding, the detection process of the detection system in the above embodiment is described below: First, the workpiece 20 is placed on the support 11. The dial indicator 13 is moved to the position corresponding to the detection point on the workpiece 20 via the adjustment mechanism, and then driven to the detection position. The value of the dial indicator 13 is then zeroed, and the dial indicator 13 is moved back to the separation position. Next, the workpiece 20 is heated by the heating assembly. During the heating process, the adjustment mechanism drives the dial indicator 13 to move back and forth between the detection position and the separation position, thereby intermittently detecting the deformation of the detection point to obtain deformation data at different temperatures. Thus, by combining the temperature data and deformation data of the detection point, the preparation process of the workpiece 20 can be improved or predictive maintenance can be facilitated.

[0031] Using the aforementioned detection system, the heating assembly heats the workpiece 20. During the heating process, the dial indicator 13 can reciprocate between the detection position and the separation position, and can detect the deformation of the detection point when it moves to the detection position. Because the dial indicator 13 frequently contacts and separates from the detection point during the detection process, it can achieve intermittent detection of the deformation of the detection point while avoiding prolonged contact between the dial indicator 13 and the workpiece 20, thereby reducing the heat transferred to the dial indicator 13, preventing excessive temperature from affecting the accuracy of the sensor inside the dial indicator 13, and improving the detection accuracy of the dial indicator 13.

[0032] Preferably, the end of the dial indicator 13 that contacts the detection point is covered with a heat insulation layer. The heat insulation layer can further reduce the heat transferred to the dial indicator 13, thereby further improving the detection accuracy of the dial indicator 13. At the same time, the heat insulation layer is preferably a rigid material, such as mica, to avoid the heat insulation layer affecting the detection accuracy of the dial indicator 13.

[0033] It should be explained that the above-mentioned detection system is used to detect the deformation of the surface of the cylindrical workpiece 20 in the laboratory. This detection is used to understand the deformation of the workpiece 20 during subsequent use in a high-temperature environment, which facilitates subsequent predictive maintenance. At the same time, the preparation process of the workpiece 20 can be optimized based on the detection results to improve the quality of the workpiece 20.

[0034] In one embodiment, the heating assembly is at least partially disposed at the bottom of the workpiece 20 to heat the bottom of the workpiece 20. Further, the heating assembly includes multiple heating elements disposed on the support base 11 for heating the bottom of the workpiece 20. It should be noted that the multiple heating elements are uniformly attached to the bottom of the workpiece 20, or a heat-conducting structure is provided between the heating elements and the workpiece 20. The heat-conducting structure can be a metal with good thermal conductivity and low thermal deformation, thereby achieving uniform heating of the bottom of the workpiece 20. Meanwhile, the workpiece 20 is typically made of metal, and its internal thermal conductivity is relatively uniform. Therefore, during the heating process, the temperature of the workpiece 20 gradually decreases from the bottom to the top, and the temperatures at different locations at the same height on the workpiece 20 are the same or close, which can be considered identical within the allowable error range. Optionally, the heating elements are PTC heating elements.

[0035] In one embodiment, the temperature detection component 12 includes a temperature controller and multiple temperature sensors. The temperature controller is electrically connected to the multiple temperature sensors, which are respectively disposed at multiple temperature measurement positions on the workpiece 20, thereby measuring the temperature at multiple locations on the workpiece 20. At least two of the multiple temperature measurement positions are at the same height, so that by measuring the temperature at these two positions, the heating of the heating component and the thermal conductivity of the workpiece 20 itself can be detected. If the temperatures are the same or the error is within the allowable range, it can be determined that both the heating component and the workpiece 20 meet the requirements; if the temperature error is large, the heating component or the workpiece 20 needs to be tested. If the heating component is normal, it can be determined that the thermal conductivity of the workpiece 20 does not meet the requirements, and the workpiece 20 needs to be replaced, or the workpiece 20 preparation system can be inspected or improved. Optionally, the temperature sensor is a thermocouple.

[0036] In one embodiment, the workpiece 20 is provided with multiple detection points, corresponding to multiple dial gauges 13, to simultaneously detect the deformation of multiple detection points on the workpiece 20. Among these multiple detection points, two may be at different heights. It should be explained that the workpiece 20 is cylindrical, and under the same temperature, the deformation at different positions on the side or end face of the workpiece 20 is the same. However, in this detection system, the heating component heats the bottom of the workpiece 20. The detection points near the bottom of the workpiece 20 heat up faster, meaning their temperature changes more rapidly. By acquiring the deformation at detection points at different heights, the deformation trend of the workpiece 20 under different heating conditions can be determined based on the temperature and deformation data. This deformation trend can then be used to adjust subsequent application scenarios. If the application scenario cannot be adjusted, predictive maintenance can be performed more effectively.

[0037] Preferably, the number of dial indicators 13 is at least four, and the at least four dial indicators 13 are divided into four groups, with two groups of dial indicators 13 corresponding to the two end faces of the workpiece 20, and the other two groups of dial indicators 13 corresponding to the opposite sides of the workpiece 20. Meanwhile, in this embodiment, the number of adjusting mechanisms can be the same as the number of dial indicators 13 to ensure precise control of the position of each dial indicator 13. In other embodiments, four adjusting mechanisms can also be provided, each corresponding to one of the four groups of dial indicators 13. Specifically... Figure 1 In the embodiment shown, there are four dial gauges 13.

[0038] In one embodiment, the adjusting mechanism includes a moving component and an adjusting component. The moving component is connected to the adjusting component to drive the adjusting component to reciprocate along the axial and vertical directions of the workpiece 20, i.e., along... Figure 1 The adjustment component is connected to the dial indicator 13 to drive the dial indicator 13 closer to and further away from the workpiece 20, and the adjustment component can drive the dial indicator 13 to reciprocate between the detection position and the separation position.

[0039] Understandably, by moving the dial indicator 13 back and forth along the axial and vertical directions of the workpiece 20 using the moving component, the height of the dial indicator 13 can be adjusted, or its position can be adjusted at the same height. Thus, four dial indicators 13 can be set up. Through multiple experiments, the deformation at different detection points can be detected by adjusting the position of the dial indicator 13 in each experiment. Of course, multiple experiments usually require replacing the workpiece 20.

[0040] In one embodiment, the moving component includes a lifting drive, a translation drive, and a mounting frame. The lifting drive is connected to the translation drive to drive the translation drive to reciprocate vertically. The translation drive is connected to the mounting frame, and a dial indicator 13 is mounted on the mounting frame to reciprocate along the axial direction of the workpiece 20 under the action of the translation drive. Optionally, both the lifting drive and the translation drive are linear modules.

[0041] In one embodiment, the adjustment assembly includes a first adjustment drive and a second adjustment drive 14. A moving assembly is connected to the first adjustment drive to drive the first adjustment drive to reciprocate along the axial and vertical directions of the workpiece 20. The first adjustment drive is connected to the second adjustment drive 14 to drive the second adjustment drive 14 towards and away from the workpiece 20. The second adjustment drive 14 is capable of driving the dial indicator 13 to reciprocate between a detection position and a separation position.

[0042] It should be noted that after the moving component drives the dial indicator 13 to the position corresponding to the detection point, the first adjusting drive component first drives the dial indicator 13 to approach the workpiece 20, so that the dial indicator 13 contacts the detection point. Then, the second adjusting drive component 14 drives the dial indicator 13 to reciprocate between the detection position and the separation position. This ensures the accuracy of the dial indicator 13's position during movement, thereby achieving high detection accuracy.

[0043] Further explanation is needed regarding the mounting base 15, which can be movably mounted on the mounting frame. The drive end of the first adjustment drive component is connected to the mounting base 15. The second adjustment drive component 14 and the dial indicator 13 are both mounted on the mounting base 15, with the dial indicator 13 movably mounted. The second adjustment drive component 14 is directly connected to the dial indicator 13. A limiting structure, such as a limiting block, is provided on the mounting base 15 to restrict the range of motion of the drive end of the second adjustment drive component 14, ensuring that the drive end of the second adjustment drive component 14 can only reciprocate between two positions. Initially, the drive end of the second adjustment drive component 14 is located close to the workpiece 20. The mounting base 15 of the first adjustment drive component moves the second adjustment component and the dial indicator 13 closer to the workpiece 20 until the dial indicator 13 contacts the detection point, thus defining the detection position at this point. Subsequently, the drive end of the second adjustment drive component 14 moves the dial indicator 13 away from the workpiece 20 to a separation position. Since the driving end of the second adjustment drive 14 can only reciprocate between two positions, the dial indicator 13 can reciprocate between the detection position and the separation position, and the accuracy of the position of the dial indicator 13 can be guaranteed. Optionally, the first adjustment drive is an electric cylinder, and the second adjustment drive 14 is an electric cylinder or a pneumatic cylinder.

[0044] In one embodiment, the detection system further includes a scanner 16. The scanner 16 is capable of scanning at least the upper half of the workpiece 20 to obtain three-dimensional data of the workpiece 20, i.e., the three-dimensional data of the scanned portion of the workpiece 20. It should be noted that during the heating process of the workpiece 20 (i.e., the temperature measurement position of the workpiece 20 is heated from the initial temperature to the corresponding target temperature), the scanner 16 takes a longer time to scan, therefore the number of checks performed by the scanner 16 is less than the number of checks performed by the dial indicator 13. After both have been checked, for the same detection point, the deformation measured by the dial indicator 13 within the same temperature range can be compared with the deformation obtained by the scanner 16. If the data from the dial indicator 13 is the same as the data from the scanner 16 or the error is within the allowable range, then the data from the dial indicator 13 is considered accurate; if the error between the data from the dial indicator 13 and the data from the scanner 16 exceeds the allowable range, then the data from the dial indicator 13 is considered unqualified, and the experiment needs to be repeated. It is certain that the aforementioned allowable error range needs to be set according to the size of the workpiece 20 and the application environment; that is, those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0045] It should be further explained that the detection data of the scanner 16 for the detection point is usually obtained by the scanner 16 acquiring three-dimensional data of several points around the detection point at the same temperature range. After calculating the three-dimensional data of several points around the detection point and calculating the deformation of the corresponding points, the average value is calculated based on the deformation of several points. This average value is used as the deformation of the detection point at that temperature range.

[0046] Furthermore, the detection system also includes a moving mechanism 17. The moving mechanism 17 is fixedly disposed relative to the support base 11 and connected to the scanner 16 to drive the scanner 16 to move relative to the workpiece 20, thereby enabling the scanner 16 to scan at least the upper half of the workpiece 20 during its movement. Optionally, the scanner 16 is a conventional mechanism and the moving mechanism 17 is a robotic arm, which will not be described in detail here.

[0047] It should be noted that before the experiment, or when the detection system has not been used for a long time, the movement path of the scanner 16 needs to be calibrated to ensure the detection accuracy of the scanner 16. For example, a calibration plate can be set around the support 11 or the moving mechanism 17, and then the moving mechanism 17 drives the scanner 16 to move around the calibration plate. During the movement, it is necessary to ensure that the calibration plate is always clearly in the field of view of the scanner 16. At the same time, when scanning the workpiece 20 with the scanner 16, sufficient marking points need to be set around the workpiece 20 to facilitate the positioning and scanning of the scanner 16.

[0048] In one embodiment, the detection system includes a control mechanism 18, which is electrically connected to the heating component, temperature detection component 12, adjustment mechanism, dial gauge 13, and scanner 16 in the above embodiment, to automatically heat and detect the workpiece 20 after it is placed on the support 11. The adjustment mechanism can be indirectly controlled by an operator through the control mechanism 18, causing the adjustment mechanism to drive the dial gauge 13 to move to a preset position. It should be noted that... Figure 2 The diagram only shows the control mechanism 18 electrically connected to the dial gauge 13, but it does not limit the control mechanism 18 to being electrically connected only to the dial gauge 13.

[0049] Based on the detection system in the above embodiments, this application also provides an intelligent detection method for high-temperature deformation of cylindrical workpieces, which can detect the deformation of workpiece 20 in a high-temperature environment and ensure the detection accuracy of the deformation of workpiece 20.

[0050] like Figure 1 As shown, in one embodiment, the detection method includes the following steps: S110, arranging the dial indicator 13: placing the dial indicator 13 at a position corresponding to the detection point on the workpiece 20. S120, heating: heating the workpiece 20. S130, temperature detection: detecting the temperature at multiple temperature measurement positions on the workpiece 20, wherein the multiple temperature measurement positions include detection points. S140, deformation detection: reciprocatingly moving the dial indicator 13 between a detection position and a separation position, wherein when the dial indicator 13 moves to the detection position, the dial indicator 13 can contact the detection point; when the dial indicator 13 moves to the separation position, the dial indicator 13 separates from the workpiece 20.

[0051] Using the above-described detection method, the detection points on the workpiece 20 are first determined. Then, the dial indicator 13 is positioned corresponding to the detection points. Next, the workpiece 20 is heated, and its temperature is monitored. Simultaneously, the dial indicator 13 is controlled to reciprocate between the detection position and the separation position. When in the detection position, the dial indicator 13 contacts the detection point, thereby detecting the deformation at that point. Because the dial indicator 13 frequently contacts and separates from the detection point during the detection process, the deformation at the detection point is detected intermittently, avoiding prolonged contact between the dial indicator 13 and the workpiece 20. This reduces the heat transferred to the dial indicator 13, preventing excessively high temperatures from affecting the accuracy of the sensor inside the dial indicator 13 and improving its detection accuracy.

[0052] Similarly, the above-described detection method is also applied to the deformation detection of the surface of cylindrical workpiece 20 in the laboratory. This method allows for understanding the deformation of the workpiece 20 during subsequent use in a high-temperature environment, facilitating predictive maintenance. Furthermore, the detection results can be used to optimize the manufacturing process of the workpiece 20, thereby improving its quality. In other embodiments, this method can also be applied to the deformation detection of the surface of workpieces 20 with other shapes in the laboratory.

[0053] In one embodiment, S110 further includes the step: S111, Determine the position of the detection point on the workpiece 20. S112, Adjust the position of the dial indicator 13 using the moving component until the dial indicator 13 corresponds to the detection point. S113, Drive the dial indicator 13 closer to the workpiece 20 using the first adjusting drive component until the dial indicator 13 contacts the detection point. S114, Drive the dial indicator 13 away from the workpiece 20 using the second adjusting drive component 14. It should be explained that the detection point can be determined by the operator first identifying a certain area of ​​deformation on the workpiece 20 to be detected, then moving the dial indicator 13 to the position corresponding to that area using the moving component, and then driving the dial indicator 13 closer to the workpiece 20 using the first adjusting drive component until it contacts the workpiece 20. The position on the workpiece 20 where the dial indicator 13 contacts the detection point. Alternatively, the position of the detection point can be accurately determined first, for example, by marking it.

[0054] Based on the above embodiments, it can be determined that in S113, when the dial indicator 13 contacts the detection point, the dial indicator 13 is located in the detection position. In S114, the second adjustment drive member 14 drives the dial indicator 13 away from the workpiece 20, which can move the dial indicator 13 to the separation position. In S140, the second adjustment drive member 14 also drives the dial indicator 13 to reciprocate between the detection position and the separation position, thereby realizing intermittent detection of the deformation of the detection point.

[0055] In one embodiment, the detection method further includes the step: S150, three-dimensional detection: detecting the three-dimensional data of the workpiece 20 using the scanner 16. Similarly, as can be seen from the above embodiments, the number of deformation detections in S140 is greater than the number of three-dimensional detections in S150. It should be noted that the step numbers S120, S130, S140, and S150 are not restrictive in terms of their order. Based on the above embodiments, it can be determined that these steps do not have a clear order and can be performed simultaneously.

[0056] Specifically, as described above, the scanner 16 is connected to a robotic arm, which can be remotely controlled by a control mechanism 18. The control mechanism 18 acquires the image scanned by the scanner 16 and then controls the robotic arm to drive the scanner 16 to scan the workpiece 20 along a preset path. The scanner 16 typically moves from one end of the workpiece 20 to the other. After moving a certain distance along the axis of the workpiece 20, the scanner 16 reciprocates around the workpiece 20 in a direction perpendicular to its axis, thus performing a comprehensive scan of at least the upper half of the workpiece 20.

[0057] In one embodiment, the detection method further includes the step of: S160, Data Verification: Compare deformation detection data and 3D data within the same temperature range. If the data deviation is greater than the preset deviation, repeat the experiment, as described in the above embodiments, which will not be repeated here; if the data deviation does not exceed the preset deviation, then plot the graph. It can be understood that the preset deviation is the allowable error range in the above embodiments.

[0058] S170, Graphical Plotting: Based on the temperature data and deformation detection data, plot the first deformation curve of the detection point; based on the temperature data and 3D data, plot the second deformation curve of other points on the workpiece 20. It should be noted that, as mentioned above, compared to the dial indicator 13, the scanner 16 can acquire 3D data from more points. However, the scanner 16 has a slower scanning speed. Therefore, within the same temperature range, the scanner 16 performs fewer checks than the dial indicator 13, meaning that the scanner 16 detects less data at the same point than the dial indicator 13. By comparing the second deformation curve of other points with the first deformation curve, if the trends are the same or similar (e.g., the deviation is within the allowable range), it can be determined that the deformation area of ​​other points is the same as that of the detection point, and the first deformation curve can be used as the deformation trend diagram of the workpiece 20 at different temperatures. If the trend deviation is large, multiple experiments are required to obtain the deformation trend of other points.

[0059] It should be explained that since scanner 16 detects more points, more temperature sensors can be set up to detect the temperature at different points as needed. Also, as mentioned above, the temperature of workpieces at the same height on the workpiece 20 is usually the same, so multiple temperature sensors can be arranged at different heights.

[0060] Regarding the deformation detected by scanner 16, it should be noted that scanner 16 acquires three-dimensional data of workpiece 20. Due to the slow scanning speed, the temperature of different points that are far apart may differ during a single scan. For example, when scanner 16 moves from the first end of workpiece 20 to the second end, if it detects a point at the first end, the temperature of that point is n℃ (the control mechanism 18 can match the temperature data with the three-dimensional data). If it detects a point at the second end, the temperature of that point is m℃. Since workpiece 20 is continuously heated, m is usually greater than n. However, each point that scanner 16 can scan will be scanned at least twice. After acquiring the three-dimensional data, the control mechanism 18 first matches the three-dimensional data obtained from multiple scans to calculate the deformation at different points, and then matches the deformation with the temperature data to determine the deformation at different temperature ranges for each point.

[0061] In conjunction with the above embodiments, it should be noted that when plotting the deformation curve, temperature data is typically used as the horizontal axis, and the deformation amount (data detected by dial gauge 13 or three-dimensional data detected by scanner 16) is used as the vertical axis. After the control mechanism 18 plots the deformation curve, it allows operators to easily obtain the deformation pattern of the workpiece 20, enabling predictive maintenance of the workpiece 20 or improvement of the workpiece 20's manufacturing process based on the deformation pattern. Simultaneously, the control mechanism 18 can also perform comparative analysis and summarize the results, generating and outputting a comparative report.

[0062] To facilitate understanding of the technical solution of this application, this document combines... Figure 3 The actual workflow is described. Scanner 16 has already been calibrated.

[0063] First, the workpiece 20 is placed on the support 11. Then, the dial indicator 13 is positioned corresponding to the detection point on the workpiece 20. Specifically, the dial indicator 13 is moved to the position corresponding to the detection point using an adjustment mechanism, and the detection and separation positions of the dial indicator 13 are determined as described above. During this step, the dial indicator 13 can be zeroed when it reaches the detection position. Next, the initial temperature of multiple temperature measurement points on the workpiece 20 is detected by the temperature detection component 12, and simultaneously, the initial three-dimensional data of the workpiece 20 (at least the upper half) is detected by the scanner 16 to obtain the initial three-dimensional data of the workpiece 20.

[0064] After the above tests are completed, the bottom of the workpiece 20 is heated by the heating assembly. During the heating process, the temperature detection assembly 12 continuously detects the temperature at the temperature measurement position of the workpiece 20; the dial gauge 13 moves back and forth between the detection position and the separation position to intermittently detect the deformation at the detection point and obtain deformation detection data; the scanner 16 scans the workpiece 20 at least once to obtain the three-dimensional data of the workpiece 20 after heating.

[0065] After heating is complete, the control mechanism 18 summarizes the temperature data, deformation detection data, and three-dimensional data, and first verifies the data, that is, verifies whether the deviation between the deformation detection data and the three-dimensional data within the same temperature range is greater than the preset deviation. If it is greater than the preset deviation, the experiment needs to be repeated; if it is not greater than the preset deviation, then the graph can be plotted, that is, a deformation curve can be drawn. The plotting and comparison of the deformation curve are as described above, and will not be repeated here.

[0066] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for intelligent detection of high-temperature deformation of a cylindrical workpiece, characterized in that, The method comprises the steps of: arranging a micrometer: arranging the micrometer at a position corresponding to a detection point on the workpiece; heating: heating the workpiece; temperature detection: detecting the temperature of the workpiece; deformation detection: moving the micrometer reciprocally between the detection position and the separation position, and when the micrometer moves to the detection position, the micrometer can contact the detection point; when the micrometer moves to the separation position, the micrometer is separated from the workpiece.

2. The intelligent detection method for high-temperature deformation of a cylindrical workpiece according to claim 1, characterized in that, The method further comprises the steps of: three-dimensional detection: detecting the three-dimensional data of the workpiece by a scanner; wherein the number of deformation detection is greater than the number of three-dimensional detection.

3. The intelligent detection method for high-temperature deformation of a cylindrical workpiece according to claim 2, characterized in that, The method further comprises the steps of: data verification: comparing the deformation detection data and the three-dimensional data of the same temperature range, if the data deviation is greater than the preset deviation, repeating the experiment; if the data deviation does not exceed the preset deviation, performing graphic drawing; graphic drawing: drawing a first deformation curve of the detection point according to the temperature data and the deformation detection data, and drawing a second deformation curve of other points of the workpiece according to the temperature data and the three-dimensional data.

4. The intelligent detection method for high-temperature deformation of a cylindrical workpiece according to claim 3, characterized in that, The method further comprises the steps of: graphic comparison: comparing the first deformation curve and the second deformation curve.

5. The intelligent detection method for high-temperature deformation of a cylindrical workpiece according to claim 1, characterized in that, The step of arranging the micrometer comprises: determining the position of the detection point on the workpiece; adjusting the position of the micrometer by the moving assembly until the micrometer corresponds to the detection point; driving the micrometer to approach the workpiece by the first adjusting driving member until the micrometer contacts the detection point; driving the micrometer to move away from the workpiece by the second adjusting driving member.

6. The intelligent detection method for high-temperature deformation of a cylindrical workpiece according to claim 5, characterized in that, In the deformation detection of the detection point: driving the micrometer to reciprocally move between the detection position and the separation position by the second adjusting driving member.

7. A high-temperature deformation intelligent detection system for a cylindrical workpiece, characterized in that, It comprises: a bearing seat for bearing the workpiece; a heating assembly arranged on the bearing seat for heating the workpiece; a temperature detection assembly for detecting the temperature of a plurality of temperature measurement positions on the workpiece, the plurality of temperature measurement positions including the detection point; an adjusting mechanism and a micrometer, the adjusting mechanism being connected with the micrometer, the adjusting mechanism being capable of driving the micrometer to move to a position corresponding to the detection point on the workpiece, and being capable of driving the micrometer to reciprocally move between the detection position and the separation position; wherein when the micrometer moves to the detection position, the micrometer can contact the detection point; when the micrometer moves to the separation position, the micrometer is separated from the workpiece.

8. The intelligent detection system for high-temperature deformation of a cylindrical workpiece according to claim 7, characterized in that, It further comprises a scanner, the heating assembly is at least partially arranged at the bottom of the workpiece, and the scanner can at least scan the upper half of the workpiece to obtain the three-dimensional data of the workpiece.

9. The intelligent detection system for high-temperature deformation of a cylindrical workpiece according to claim 7, characterized in that, The adjusting mechanism comprises a moving assembly and an adjusting assembly, the moving assembly is connected with the adjusting assembly to drive the adjusting assembly to reciprocally move along the axial direction and the vertical direction of the workpiece, the adjusting assembly is connected with the micrometer to drive the micrometer to approach and move away from the workpiece, and the adjusting assembly can drive the micrometer to reciprocally move between the detection position and the separation position.

10. The intelligent detection system for high-temperature deformation of a cylindrical workpiece according to claim 9, wherein, The adjusting assembly comprises a first adjusting drive and a second adjusting drive, the moving assembly is connected with the first adjusting drive, the first adjusting drive is connected with the second adjusting drive, so as to drive the second adjusting drive to move close to and away from the workpiece, and the second adjusting drive can drive the micrometer to reciprocate between the detection position and the separation position.

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