A multi-parameter intelligent detection device and detection method suitable for metal bellows

Abstract

The present invention discloses a multi-parameter intelligent detection device and detection method suitable for metal bellows, which relates to the technical field of metal bellows detection. A clamping mechanism is used to clamp the metal bellows to be detected, and the clamping mechanism can fill the metal bellows to be detected with gas at a certain pressure. A visual detection mechanism is used to detect the appearance characteristics and weld quality of the metal bellows. An airtightness detection mechanism is used to detect the airtightness of the metal bellows. A geometric dimension detection mechanism is used to detect the dimensional error of the metal bellows. The visual detection mechanism, the airtightness detection mechanism, and the geometric dimension detection mechanism are all capable of rotating relative to the clamping mechanism. The turntable mechanism, the visual detection mechanism, the airtightness detection mechanism, and the geometric dimension detection mechanism are all electrically connected to a control console. Based on multi-source data acquisition technology, the present invention improves the integration of detection functions, reduces the labor intensity of quality inspectors, and improves detection efficiency, while avoiding damage caused by repeated disassembly and assembly of the metal bellows.

Description

Technical Field

[0001] The present invention relates to the technical field of metal bellows detection, and in particular to a multi-parameter intelligent detection device and a detection method suitable for metal bellows. Background Art

[0002] Metal bellows, as cylindrical, thin-walled, sensitive elastic components with a certain number of side corrugations, provide flexible connections, dynamic sealing, and displacement compensation. They are widely used in nuclear power, petrochemicals, aerospace, offshore vessels, high-end equipment, and other fields. For example, in bellows valves used in petrochemical pipelines, the metal bellows serves as a key component for sealing the valve cavity. It provides an axially deformable metal spacer between the valve stem and the fluid within the valve body, forming a dynamic seal and preventing leakage at the valve stem.

[0003] In the quality control process, comprehensive, comprehensive and high-precision quality inspections are carried out on the appearance, welding quality, air tightness and geometric dimensions of the finished metal bellows, which is of great significance to improving the efficiency of product quality inspection and testing and improving the stability of product process.

[0004] Currently, various performance tests for metal bellows, including appearance inspection, welding quality inspection, geometric dimension inspection, and airtightness inspection, require switching between multiple different testing devices. This is a heavy workload and highly discrete. Depending on the specific testing requirements, the metal bellows must be installed and fixed to different testing devices for testing. The installation and removal of metal bellows between different devices not only increases labor intensity but also poses the risk of damage to the metal bellows during installation and removal. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-parameter intelligent detection device and detection method suitable for metal bellows, so as to solve the problems existing in the above-mentioned prior art, improve the integration of detection equipment, reduce labor, and avoid damage to the metal bellows caused by disassembly.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a multi-parameter intelligent detection device suitable for metal bellows, comprising: a turntable mechanism, a clamping mechanism, a visual detection mechanism, an airtightness detection mechanism, a geometric dimension detection mechanism and a control console, wherein the visual detection mechanism, the airtightness detection mechanism and the geometric dimension detection mechanism are all installed on the turntable mechanism, the clamping mechanism is used to clamp the metal bellows to be detected and the clamping mechanism can fill gas into the metal bellows to be detected, the visual detection mechanism is used to detect the appearance and weld quality of the metal bellows to be detected, the airtightness detection mechanism is used to detect the airtightness of the metal bellows to be detected, and the geometric dimension detection mechanism is used to detect the geometric dimensions of the metal bellows to be detected, the visual detection mechanism, the airtightness detection mechanism and the geometric dimension detection mechanism are all able to rotate relative to the clamping mechanism, and the turntable mechanism, the visual detection mechanism, the airtightness detection mechanism and the geometric dimension detection mechanism are all electrically connected to the control console.

[0008] In some specific schemes, the turntable mechanism includes a turntable drive assembly and a turntable; the visual inspection mechanism, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all installed on the turntable, the turntable mechanism is a hollow ring structure, the clamping mechanism is located at the center of the turntable, the turntable drive assembly is electrically connected to the control console, and the turntable drive assembly is used to drive the turntable to rotate at a uniform speed relative to the clamping mechanism.

[0009] In some specific embodiments, a driving gear is installed at the power output end of the turntable driving assembly, the turntable is connected to a ring gear, and the driving gear is meshed with the ring gear.

[0010] In some specific schemes, the clamping mechanism includes a support tube and a first connecting flange, the first connecting flange is arranged at one end of the support tube, the first connecting flange is used to connect to the second connecting flange at one end of the metal bellows to be tested, and the support tube is provided with a gas path connector, and gas can enter the support tube through the gas path connector and be filled into the metal bellows to be tested.

[0011] In some specific embodiments, the clamping mechanism is installed on a clamping motion component, which is electrically connected to the console. The clamping motion component can drive the clamping mechanism to move, so as to adjust the relative position of the clamping mechanism and the turntable mechanism.

[0012] In some specific schemes, a first workstation is provided on the turntable mechanism, and a first motion component is installed on the first workstation, and the first motion component is electrically connected to the console. The visual detection mechanism is installed on the first motion component, and the first motion component is used to adjust the relative position of the visual detection mechanism and the clamping mechanism; the visual detection mechanism includes a light source and an image acquisition component, and the image acquisition component is used to collect appearance image information of the metal bellows to be inspected, and the image acquisition component is electrically connected to the console, and the image acquisition component transmits the collected image to the console for analysis.

[0013] In some specific schemes, a second workstation is provided on the turntable mechanism, and a second motion component is installed on the second workstation, and the second motion component is electrically connected to the console. The airtightness detection mechanism is installed on the second motion component, and the second motion component is used to adjust the relative position of the airtightness detection mechanism and the clamping mechanism; the airtightness detection mechanism includes an acoustic imager and a buzzer, and the acoustic imager is used to collect the sound wave signal when the metal bellows to be detected leaks, and the buzzer alarm is synchronously started when a leak is detected. The acoustic imager is electrically connected to the console, and the acoustic imager transmits the collected sound wave signal to the console for analysis of the leakage point location information.

[0014] In some specific schemes, a third workstation and a fourth workstation are relatively arranged on the turntable mechanism, a third motion assembly is installed on the third workstation, and a fourth motion assembly is installed on the fourth workstation, and both the third motion assembly and the fourth motion assembly are electrically connected to the console. The geometric dimension detection mechanism includes a projection image measuring instrument, a transmitting end of the projection image measuring instrument is installed on the third motion assembly, and the third motion assembly is used to adjust the relative position of the transmitting end of the projection image measuring instrument and the clamping mechanism. The receiving end of the projection image measuring instrument is set on the fourth motion assembly, and the fourth motion assembly is used to adjust the relative position of the receiving end of the projection image measuring instrument and the clamping mechanism. The transmitting end and the receiving end of the projection image measuring instrument are both electrically connected to the console, the transmitting end of the projection image measuring instrument is used to emit parallel light to the metal bellows to be inspected, and the receiving end of the projection image measuring instrument is used to capture the shadow of the metal bellows to be inspected and image it, and the image data information after imaging is transmitted to the console for analysis.

[0015] In some specific solutions, the turntable mechanism is further provided with a spare station, the spare station is provided with a spare motion component, and the spare motion component is electrically connected to the control console.

[0016] The present invention also provides a detection method using the multi-parameter intelligent detection device applicable to metal bellows, comprising:

[0017] Initialization, the turntable mechanism is reset to the initial position;

[0018] Adjust the position of the clamping mechanism and fix the metal bellows to be tested on the clamping mechanism. The metal bellows to be tested are divided into several testing areas from top to bottom.

[0019] Adjust the positions of the visual inspection mechanism, the air tightness inspection mechanism, and the geometric dimension inspection mechanism so that the positions of the visual inspection mechanism, the air tightness inspection mechanism, and the geometric dimension inspection mechanism correspond to a certain inspection area of ​​the metal corrugation to be inspected;

[0020] The turntable mechanism drives the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism to rotate around the metal bellows to be inspected on the clamping mechanism;

[0021] After the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism rotate 360 ​​degrees around the metal bellows to be inspected, the heights of the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism are adjusted so that the positions of the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism correspond to another inspection area of ​​the metal bellows to be inspected, and the turntable mechanism is started again so that the turntable mechanism drives the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism to rotate 360 ​​degrees around the metal bellows to be inspected on the clamping mechanism;

[0022] Repeat the above process until all detection areas have been inspected.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] The multi-parameter intelligent detection device suitable for metal bellows of the present invention can realize high-precision detection of multiple key indicators such as appearance and weld quality, geometric dimensions, air tightness, etc., improves the integration of detection equipment functions, improves product detection efficiency and is conducive to data collection and integration, and solves the problems of existing metal bellows detection devices such as single function, large degree of equipment discreteness, cumbersome disassembly and installation process of detection objects, and difficult data management. It avoids scratches and damage to metal bellows caused by multiple disassembly and installation, and reduces the labor intensity of inspectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 Schematic diagram of a multi-parameter intelligent detection device for metal bellows in some embodiments of the present invention Figure 1 ;

[0027] Figure 2 Schematic diagram of a multi-parameter intelligent detection device for metal bellows in some embodiments of the present invention Figure 2 ;

[0028] In the figure: 1-fourth motion component, 2-locking mechanism, 3-air path connector, 4-turntable, 5-second motion component, 6-turntable drive component, 7-fixed platform, 8-X-axis component, 9-control console, 10-base, 11-third motion component, 12-transmitting end of projection image measuring instrument, 13-first motion component, 14-visual inspection mechanism, 15-Y-axis assembly, 16-metal bellows to be inspected, 17-receiving end of projection image measuring instrument, 201-right-angle reducer, 202-drive gear, 203-gear ring, 204-pillar. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a multi-parameter intelligent detection device and detection method suitable for metal bellows, so as to solve the problems existing in the above-mentioned prior art, improve functional integration, reduce the degree of equipment discreteness, facilitate data management, reduce labor intensity, and avoid damage to the metal bellows caused by repeated disassembly and installation.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1 to 2As shown, this embodiment provides a multi-parameter intelligent detection device suitable for metal bellows, including: a base 10, a turntable mechanism, a clamping mechanism, a visual detection mechanism 14, an airtightness detection mechanism, a geometric dimension detection mechanism and a console 9. The turntable mechanism and the clamping mechanism are all installed on the base 10. The visual detection mechanism 14, the airtightness detection mechanism and the geometric dimension detection mechanism are all arranged on the turntable mechanism. The clamping mechanism is used to clamp the metal bellows 16 to be detected and the clamping mechanism can fill a certain pressure of gas into the metal bellows 16 to be detected. The visual detection mechanism 14 is used to The appearance (such as dirt, scratches, pits, etc.) and weld quality (such as slag inclusions, pores, cracks, incomplete penetration, etc.) of the metal bellows 16 to be inspected are inspected. The airtightness inspection mechanism is used to inspect the airtightness of the metal bellows 16 to be inspected. The geometric dimension inspection mechanism is used to inspect the geometric dimensions of the metal bellows 16 to be inspected, and then analyze the dimensional error. The visual inspection mechanism 14, the airtightness inspection mechanism, and the geometric dimension inspection mechanism are all capable of rotating relative to the clamping mechanism. The turntable mechanism, the visual inspection mechanism 14, the airtightness inspection mechanism, and the geometric dimension inspection mechanism are all electrically connected to the console 9. When the turntable mechanism rotates, the visual inspection mechanism 14, the airtightness inspection mechanism, and the geometric dimension inspection mechanism can inspect the metal bellows 16 to be inspected at the same time, or they can choose to inspect the metal bellows 16 to be inspected separately. The multi-parameter intelligent detection device suitable for metal bellows in this embodiment can realize the detection of multiple indicators such as appearance and weld quality, geometric dimensions, air tightness, etc., improves the integration of detection equipment functions, and solves the problems of large discreteness and scattered data collection in existing bellows detection devices. There is no need to disassemble and move the metal bellows to be inspected multiple times, which avoids damage to the metal bellows caused by disassembly and reduces the labor intensity of quality inspectors.

[0034] In a specific implementation manner of some embodiments, the turntable mechanism includes a turntable drive assembly 6 and a turntable 4, the visual inspection mechanism 14, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all installed on the turntable 4, the turntable 4 is installed on the base 10 through a rotating support assembly, the rotating support assembly includes a rotating support inner ring and a rotating support outer ring that can rotate relative to each other, the rotating support inner ring is fixed to the base 10 through a pillar 204, the turntable 4 is fixed on the rotating support outer ring, the turntable 4 is a hollow ring structure, the clamping mechanism is located at the center of the turntable 4, the turntable drive assembly 6 is electrically connected to the console 9, and the turntable drive assembly 6 is used to drive the turntable 4 to rotate at a uniform speed relative to the clamping mechanism.

[0035] In some embodiments, the turntable drive assembly 6 is a motor connected to a right-angle reducer 201. A drive gear 202 is mounted on the power output of the right-angle reducer 201. A ring gear 203 is fixed to the outer ring of the rotating support. The turntable 4 is relatively fixed to the ring gear 203, and the drive gear 202 meshes with the ring gear 203. The motor drives the reducer to rotate, which in turn drives the drive gear 202 to rotate, thereby rotating the ring gear 203 and the turntable 4, thereby rotating the visual inspection mechanism 14, the airtightness inspection mechanism, and the geometric dimension inspection mechanism around the metal bellows 16 to be inspected.

[0036] In the specific implementation of some embodiments, the clamping mechanism includes a fixed platform 7, a support tube and a first connecting flange, the first connecting flange is arranged at one end of the support tube, the first connecting flange is used to connect to the second connecting flange at one end of the metal bellows 16 to be detected, the first connecting flange and the second connecting flange are positioned and locked by a locking mechanism 2, a sealing groove is provided on the end face of the first connecting flange, a sealing ring is provided in the sealing groove, the other end of the support tube is provided on the fixed platform 7, the side wall of the support tube is provided with an air path connector 3, the other end of the metal bellows 16 to be detected is closed, and the gas can enter the support tube through the air path connector 3 and be filled into the metal bellows 16 to be detected.

[0037] In a specific implementation manner of some embodiments, the clamping mechanism is installed on a clamping motion assembly, the clamping motion assembly is electrically connected to the console 9, the clamping motion assembly includes an X-axis assembly 8 and a Y-axis assembly 15, the X-axis assembly 8 can drive the metal bellows 16 to be detected to move along the X-axis, and the Y-axis assembly 15 can drive the metal bellows 16 to be detected to move along the Y-axis, the X-axis assembly 8 and the Y-axis assembly 15 both adopt a nut-screw structure, the X-axis assembly 8 and the Y-axis assembly 15 both include a motion base 10, a drive assembly, a screw and a nut, the drive assembly is transmission-connected to the screw, the screw is rotationally connected to the motion base 10, the nut is threadedly connected to the screw, the motion base 10 of the Y-axis assembly 15 is set on the nut of the X-axis assembly 8, the fixed platform 7 of the clamping mechanism is set on the nut of the Y-axis assembly 15, the clamping motion assembly can drive the clamping mechanism to move, and is used to adjust the relative position of the clamping mechanism and the turntable mechanism. The clamping motion component drives the metal bellows 16 to be inspected to move along the X-axis and the Y-axis, ensuring that the metal bellows 16 to be inspected can be adjusted to the center position of the ring of the turntable 4.

[0038] In a specific implementation manner of some embodiments, a first workstation is provided on the turntable mechanism, a first motion component 13 is installed on the first workstation, a visual detection mechanism 14 is installed on the first motion component 13, the first motion component 13 is electrically connected to the console 9, and the first motion component 13 is used to adjust the relative position of the visual detection mechanism 14 and the clamping mechanism. Specifically, the first motion component 13 is used to drive the visual detection mechanism 14 to move along the Z axis to adjust the position of the visual detection mechanism; the visual detection mechanism 14 includes a light source and an image acquisition component, the image acquisition component is an industrial camera, such as a CCD camera (a digital camera using a charge-coupled device as an image sensor), the image acquisition component is used to collect appearance image information of the metal bellows 16 to be inspected, the image acquisition component is electrically connected to the console 9, and the image acquisition component transmits the collected image to the console 9 for quantitative comparative analysis.

[0039] In this embodiment, the appearance and weld quality of the metal bellows are inspected by a visual inspection mechanism 14. The visual inspection mechanism 14 has the function of automatically adjusting the focal length, which can realize focus adjustment for bellows of different sizes and specifications. During operation, the image acquisition mechanism is driven by the 0-360 degree rotation of the turntable 4 to perform a circumferential scan of the metal bellows 16 to be inspected. The image acquisition mechanism captures images of the surface and longitudinal and circumferential weld areas at a set frequency and transmits the captured images to the console 9. The data analysis software installed in the console 9 is used to compare the captured images with various defect samples in the database, thereby determining and analyzing defects and weld quality problems. Through deep learning, it is possible to compare and confirm different defect forms such as scratches, pits, slag inclusions, undercuts, weld bumps, etc. The analysis and judgment results are written into the corresponding file of the bellows, and the appearance damage and weld defect locations are simultaneously recorded to facilitate tracing the causes of quality problems.

[0040] In the specific implementation manner of some embodiments, a second workstation is provided on the turntable mechanism, and a second motion component 5 is provided on the second workstation. The airtightness detection mechanism is installed on the second motion component 5, and the second motion component 5 is electrically connected to the console 9. The second motion component 5 is used to adjust the relative position of the airtightness detection mechanism and the clamping mechanism. Specifically, the second motion component 5 is used to drive the airtightness detection mechanism to move along the Z axis to adjust the height of the airtightness detection mechanism; the airtightness detection mechanism includes a high-resolution acoustic imager and a buzzer. The acoustic imager is used to collect sound signals when micro-leakage occurs in the metal bellows 16 to be detected. The acoustic imager is electrically connected to the console 9. When the micro-leakage sound wave signal is collected, the buzzer alarms and synchronously transmits the collected sound signal to the console 9 for quantitative analysis. When using an air tightness detection mechanism to perform air tightness testing on a bellows, compressed gas of 0.5MPa to 1.0MPa is filled into the metal bellows 16 to be tested through the air path connector 3. The turntable 4 is rotated 0 to 360 degrees around the Z axis to enable the acoustic imager to scan the metal bellows 16 to be tested. The acoustic imager uses multiple high-precision microphones to synchronously collect sound signals. When gas escapes from the metal bellows 16 to be tested, it generates sound waves of specific frequency and intensity. After the sound waves are received by the microphone array, the source direction of the sound waves can be accurately determined and presented in the form of a visual image. When a leak occurs in the scanning area, the software on the console automatically marks the leak location and stores the leak status and recorded leak location in the file corresponding to the metal bellows 16 to be tested, so that the leak location can be confirmed after the test is completed. The operator can quickly and accurately locate the location of the gas leak through the intuitive acoustic image on the screen.

[0041] In specific implementations of some embodiments, a third workstation and a fourth workstation are relatively arranged on the turntable mechanism, the third workstation is provided with a third motion component 11, and the fourth workstation is provided with a fourth motion component 1. The third motion component 11 and the fourth motion component 1 are both electrically connected to the console 9. The geometric dimension detection mechanism includes a projection image measuring instrument, and the transmitting end 12 of the projection image measuring instrument is provided on the third motion component 11. The third motion component 11 is used to adjust the relative position of the transmitting end 12 of the projection image measuring instrument and the clamping mechanism. Specifically, the third motion component 11 is used to drive the transmitting end 12 of the projection image measuring instrument to move along the Z axis to adjust the height of the transmitting end 12 of the projection image measuring instrument; the receiving end 17 of the projection image measuring instrument is installed on the fourth motion component 1, and the fourth motion component 1 is used to adjust the relative position of the receiving end 17 of the projection image measuring instrument and the clamping mechanism. Specifically, the fourth motion component 1 is used to drive the receiving end 17 of the projection image measuring instrument to move along the Z axis to adjust the height of the receiving end 17 of the projection image measuring instrument; when in use, the transmitting end 12 of the projection image measuring instrument and the receiving end 17 of the projection image measuring instrument should be at the same height, and the transmitting end 12 of the projection image measuring instrument and the receiving end 17 of the projection image measuring instrument are both electrically connected to the console 9. The transmitting end 12 of the projection image measuring instrument is used to emit parallel light to the metal bellows 16 to be inspected, and the receiving end 17 of the projection image measuring instrument is used to obtain the shadow of the metal bellows 16 to be inspected and image it, and the image data information after imaging is transmitted to the console 9 for inversion and quantitative analysis.

[0042] In this embodiment, the geometric dimensions of the metal bellows are inspected using a projection image measuring instrument to determine whether its apparent dimensions exceed the machining error range. During operation, the projection image measuring instrument's transmitter 12 emits green LED parallel light to its receiver 17. When the metal bellows enters the optical path between the transmitter 12 and receiver 17, the CMOS sensor in the receiver 17 captures the shadow of the metal bellows' outline and forms an image. The imaged information is then transmitted to the control console 9, which accurately inverts the image to obtain the contour dimension parameters. In this embodiment, the turntable 4 rotates to scan the metal bellows 16 to be inspected using the projection image measuring instrument. Once the scan is complete, the data is transmitted to the control console 9. The console's built-in software then inverts and analyzes the captured dimensions of the metal bellows 16 to determine whether the dimensions exceed the allowable error range.

[0043] In this embodiment, the X-axis is perpendicular to the Y-axis and the Z-axis, the Y-axis is perpendicular to the X-axis and the Z-axis, and the Z-axis is perpendicular to the X-axis and the Y-axis. By adjusting the positions of the visual inspection mechanism 14, the airtightness inspection mechanism, and the deformation inspection mechanism relative to the metal bellows 16 to be inspected, the inspection of bellows of different sizes can be accommodated.

[0044] In some embodiments, to meet the requirements for inspecting special-shaped bellows and avoid blind spots when inspecting special-shaped metal bellows, a spare station is provided on the turntable mechanism. A spare motion assembly is installed on the spare station, and the spare motion assembly is electrically connected to the console 9. The provision of the spare station and spare motion assembly allows for the installation of other types of high-precision inspection instruments.

[0045] In this embodiment, the console 9 integrates a computer hardware system and a control software system, and can realize functions such as high-precision motion control, parameter collection and storage of test equipment, and analysis and processing of test results.

[0046] In this embodiment, the control software system of the console 9 includes a motion control module, an appearance and weld quality image inspection and analysis module, a bellows geometry inspection and analysis module, a bellows airtightness inspection and analysis module, and a data management module. Before beginning bellows inspection, a new or existing folder must be created and named after the bellows material code. The test results of these various items will be stored in this folder. This summary of test results allows for defect cause analysis and process optimization.

[0047] Specifically, the motion control module provides a human-machine interface for motion component control. Selecting the "Motion Control" option on the control software's main window displays the motion control interface. This interface allows you to set the speed and angle parameters for the turntable mechanism, as well as the movement parameters for the clamping motion component, the first motion component, the second motion component, the third motion component, the fourth motion component, and the backup motion component, and save these parameters to a designated file. The position and movement of the clamping motion component, the first motion component, the second motion component, the third motion component, and the fourth motion component can be independently controlled using the corresponding buttons.

[0048] The appearance and weld quality image detection and analysis module provides a human-machine interface for the appearance and weld quality detection function. By selecting the "Appearance and Weld Quality Inspection" option on the main window of the control software, the appearance and weld quality detection interface can be displayed. During the detection process, images of the weld area are collected and displayed on this interface at a set frequency. Different defect types are determined by selecting algorithms, and the appearance and weld defect types and specific locations are marked on the image. After the test is completed, the test results are saved to the specified file.

[0049] The bellows geometry detection and analysis module provides a human-machine interface for the bellows geometry detection function. By selecting the "Bells Geometry Detection" option on the main window of the control software, the bellows geometry detection interface can be displayed. During the detection process, the outline of the metal bellows 16 to be detected can be displayed in real time on this interface. By selecting the "Measure" function on the interface, the outline size of the metal bellows 16 to be detected can be measured. After the detection is completed, by selecting the "Compare" function on the interface, a quantitative comparison with the standard diagram can be performed to determine whether the size of the metal bellows 16 to be detected exceeds the allowable error, and the comparison results are saved to the specified file.

[0050] The bellows air tightness detection and analysis module provides a human-machine interface for the bellows air tightness detection function. By selecting the "Bells Air Tightness Detection" option on the main window of the control software, the bellows air tightness detection interface can be displayed. On this interface, the inflation and deflation control of the gas in the bellows before the air tightness detection and the air pressure monitoring can be realized. During the detection process, the air tightness status of the metal bellows 16 to be detected is displayed in real time. When a gas leak occurs, the leak position is displayed in different colors for calibration. After the test is completed, the air tightness status data information is saved to the specified file.

[0051] The data management module provides a human-machine interface for data management functions. By selecting the "Data Management" option on the main window of the control software, the data management function interface can be displayed. On this interface, the backup, export, display, quality problem statistics and analysis functions of the corrugated pipe inspection historical data can be realized.

[0052] This embodiment can be applied to high-precision testing of the airtightness, appearance, weld quality, and geometric dimensions of metal bellows of various specifications (different diameters, wave heights, wave spacings, etc.) and various structural forms (U-shaped, S-shaped, C-shaped, Ω-shaped, etc.). Using the airtightness testing mechanism to test airtightness, it is possible to quickly and accurately locate the leak point based on the determination of whether a micro-leak has occurred, thereby enabling traceability of quality issues and providing experimental data support for product improvement and optimization. Based on a deep learning algorithm, the visual inspection mechanism 14 compares a library of appearance and weld defect materials with the test results to rapidly identify and determine various types of defects, enabling assessment of the appearance, appearance, and quality of girth and longitudinal welds of metal bellows. This robust detection of microcracks, in particular, reduces reliance on manual inspection, lowers the probability of false detection and missed detection due to subjective factors, and reduces the workload of quality inspectors. The console 9 enables centralized management of collected data, storing the data in the device's own computer memory or connecting it to a digital information management system.

[0053] This embodiment is scalable and can add new functional modules as needed. For example, automatic loading and unloading modules can be added to achieve automated operation of the entire detection process.

[0054] This embodiment is suitable for multi-parameter intelligent detection of metal bellows, and can realize the simultaneous detection of multiple indicators such as appearance and weld quality, geometric dimensions, air tightness, etc., without the need to disassemble and move the metal bellows multiple times, solving the problem of large discreteness and single function of existing bellows detection devices, improving the integration and automation of equipment functions, and effectively improving the labor efficiency of quality inspection and reducing the labor intensity of quality inspectors; this embodiment transmits all data to the console 9 for aggregation, realizes centralized management of parameters, improves the digitization and informatization level of the quality inspection link, and solves the problems of data dispersion and difficulty in statistical summary and analysis caused by the output of various parameters by different devices.

[0055] Example 2

[0056] This embodiment provides a detection method using the multi-parameter intelligent detection device for metal bellows according to the first embodiment, including:

[0057] Initialization: the turntable mechanism resets to the initial zero position;

[0058] The position of the clamping mechanism is adjusted by the clamping motion assembly, and the metal bellows 16 to be inspected is fixed on the clamping mechanism. At this time, the metal bellows to be inspected is divided into several inspection areas from top to bottom (along the Z-axis direction) within the field of view;

[0059] The position of the visual inspection mechanism 14 is adjusted by the first motion component 13, the position of the airtightness inspection mechanism is adjusted by the second motion component 5, and the position of the geometrical dimension inspection mechanism is adjusted by the third motion component 11 and the fourth motion component 1, so that the positions of the visual inspection mechanism 14, the airtightness inspection mechanism and the geometrical dimension inspection mechanism correspond to a certain inspection area of ​​the metal corrugation to be inspected;

[0060] The turntable driving assembly 6 drives the turntable 4 to drive the visual inspection mechanism 14, the airtightness inspection mechanism and the geometric dimension inspection mechanism to rotate around the metal bellows 16 to be inspected on the clamping mechanism;

[0061] After the visual inspection mechanism 14, the air tightness inspection mechanism and the geometric dimension inspection mechanism rotate 360 ​​degrees around the metal bellows 16 to be inspected, the heights of the visual inspection mechanism 14, the air tightness inspection mechanism and the geometric dimension inspection mechanism are adjusted along the Z axis so that the positions of the visual inspection mechanism 14, the air tightness inspection mechanism and the deformation inspection mechanism correspond to another inspection area of ​​the metal bellows to be inspected, and the turntable mechanism is started again. The turntable drive assembly 6 drives the turntable 4 to drive the visual inspection mechanism 14, the air tightness inspection mechanism and the geometric dimension inspection mechanism to rotate 360 ​​degrees around the metal bellows 16 to be inspected on the clamping mechanism;

[0062] Repeat the above process until all detection areas have been inspected.

[0063] In the above-mentioned detection process, any one, any two or all of the visual detection mechanism 14, the airtightness detection mechanism and the geometric dimension detection mechanism can be selected according to actual needs.

[0064] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A multi-parameter intelligent detection device suitable for metal bellows, characterized in that include: A turntable mechanism, a clamping mechanism, a visual inspection mechanism, an airtightness inspection mechanism, a geometric dimension inspection mechanism and a control console, wherein the visual inspection mechanism, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all installed on the turntable mechanism, the clamping mechanism is used to clamp the metal bellows to be inspected and the clamping mechanism can fill gas into the metal bellows to be inspected, the visual inspection mechanism is used to inspect the appearance and weld quality of the metal bellows to be inspected, the airtightness inspection mechanism is used to inspect the airtightness of the metal bellows to be inspected, and the geometric dimension inspection mechanism is used to detect the geometric dimensions of the metal bellows to be inspected, the visual inspection mechanism, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all able to rotate relative to the clamping mechanism, and the turntable mechanism, the visual inspection mechanism, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all electrically connected to the control console.

2. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: The turntable mechanism includes a turntable drive assembly and a turntable; the visual inspection mechanism, the airtightness inspection mechanism and the geometric dimension inspection mechanism are all installed on the turntable, the turntable mechanism is a hollow ring structure, the clamping mechanism is located at the center of the turntable, the turntable drive assembly is electrically connected to the control console, and the turntable drive assembly is used to drive the turntable to rotate at a uniform speed relative to the clamping mechanism.

3. The multi-parameter intelligent detection device for metal bellows according to claim 2, characterized in that: A driving gear is installed at the power output end of the turntable driving assembly, the turntable is connected to the ring gear, and the driving gear is meshed with the ring gear.

4. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: The clamping mechanism includes a support tube and a first connecting flange, the first connecting flange is arranged at one end of the support tube, and the first connecting flange is used to connect to the second connecting flange at one end of the metal bellows to be tested. The support tube is provided with a gas path connector, and gas can enter the support tube through the gas path connector and be filled into the metal bellows to be tested.

5. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: The clamping mechanism is mounted on a clamping motion assembly, which is electrically connected to the console. The clamping motion assembly can drive the clamping mechanism to move, so as to adjust the relative position of the clamping mechanism and the turntable mechanism.

6. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: A first workstation is provided on the turntable mechanism, and a first motion component is installed on the first workstation. The first motion component is electrically connected to the console, and the visual detection mechanism is installed on the first motion component. The first motion component is used to adjust the relative position of the visual detection mechanism and the clamping mechanism; the visual detection mechanism includes a light source and an image acquisition component, and the image acquisition component is used to collect appearance image information of the metal bellows to be inspected. The image acquisition component is electrically connected to the console, and the image acquisition component transmits the collected image to the console for analysis.

7. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: A second workstation is provided on the turntable mechanism, and a second motion component is installed on the second workstation. The second motion component is electrically connected to the console, and the airtightness detection mechanism is installed on the second motion component. The second motion component is used to adjust the relative position of the airtightness detection mechanism and the clamping mechanism; the airtightness detection mechanism includes an acoustic imager and a buzzer, and the acoustic imager is used to collect sound wave signals when a leak occurs in the metal bellows to be detected, and the buzzer alarm is synchronously started when a leak is detected. The acoustic imager is electrically connected to the console, and the acoustic imager transmits the collected sound wave signals to the console for analysis of the leakage point location information.

8. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: A third station and a fourth station are relatively arranged on the turntable mechanism, the third station is installed with a third motion component, and the fourth station is installed with a fourth motion component. The third motion component and the fourth motion component are both electrically connected to the console. The geometric dimension detection mechanism includes a projection image measuring instrument. The transmitting end of the projection image measuring instrument is installed on the third motion component. The third motion component is used to adjust the relative position of the transmitting end of the projection image measuring instrument and the clamping mechanism. The receiving end of the projection image measuring instrument is set on the fourth motion component. The fourth motion component is used to adjust the relative position of the receiving end of the projection image measuring instrument and the clamping mechanism. The transmitting end and the receiving end of the projection image measuring instrument are both electrically connected to the console. The transmitting end of the projection image measuring instrument is used to emit parallel light to the metal bellows to be inspected, and the receiving end of the projection image measuring instrument is used to capture the shadow of the metal bellows to be inspected and image it. The image data information after imaging is transmitted to the console for analysis.

9. The multi-parameter intelligent detection device for metal bellows according to claim 1, characterized in that: The turntable mechanism is further provided with a spare station, the spare station is provided with a spare motion component, and the spare motion component is electrically connected to the control console.

10. A detection method using the multi-parameter intelligent detection device for metal bellows according to any one of claims 1 to 9, characterized in that: include: Initialization, the turntable mechanism is reset to the initial position; Adjust the position of the clamping mechanism and fix the metal bellows to be tested on the clamping mechanism. The metal bellows to be tested are divided into several testing areas from top to bottom. Adjust the positions of the visual inspection mechanism, the air tightness inspection mechanism, and the geometric dimension inspection mechanism so that the positions of the visual inspection mechanism, the air tightness inspection mechanism, and the geometric dimension inspection mechanism correspond to a certain inspection area of ​​the metal corrugation to be inspected; The turntable mechanism drives the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism to rotate around the metal bellows to be inspected on the clamping mechanism; After the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism rotate 360 ​​degrees around the metal bellows to be inspected, the heights of the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism are adjusted so that the positions of the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism correspond to another inspection area of ​​the metal bellows to be inspected, and the turntable mechanism is started again so that the turntable mechanism drives the visual inspection mechanism, the air tightness inspection mechanism and the geometric dimension inspection mechanism to rotate 360 ​​degrees around the metal bellows to be inspected on the clamping mechanism; Repeat the above process until all detection areas have been inspected.

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