A comprehensive welding bevel testing fixture for a cylinder of a tank container and a cylinder welding method

Abstract

The application discloses a kind of comprehensive testing tools of tank container cylinder welding bevel and cylinder welding method, including integrated mounting plate being arranged at the front end of servo electric push rod, bevel detection module being movably arranged on integrated mounting plate, bevel detection module includes roller seat, bevel detection roller being rotatably arranged at the front end portion of roller seat, a plurality of guide rods being connected at the rear end portion of roller seat, a plurality of guide holes are provided on integrated mounting plate, guide rod is correspondingly inserted into guide hole, compression spring is sleeved on the rod body of a section of guide rod between roller seat and integrated mounting plate, the rear end of guide rod is connected with baffle;The cross-sectional shape of the outer edge of bevel detection roller is circular arc shape, first distance measuring sensor for detecting the moving distance of roller seat is provided on integrated mounting plate, servo electric push rod and first distance measuring sensor are connected with controller respectively.The adaptability for the size detection of cylinder butt joint ring seam bevel is improved, and the quality of cylinder girth weld is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a tank container cylinder welding groove comprehensive gauge and a cylinder welding method. BACKGROUND

[0002] The low-temperature liquid tank container is a mobile pressure container with a supporting frame outside for transporting low-temperature liquid. The core components of the low-temperature liquid tank container are the inner container and the outer container, both of which are welded structural members, which are composed of a cylinder and a head connected to both ends of the cylinder. Among them, the cylinder is formed by welding after being rolled on a plate rolling machine; when the cylinder is long, it needs to be divided into several sub-cylinders and then spliced and welded into a whole cylinder.

[0003] In order to ensure that the circumferential girth weld of the joint part of each sub-cylinder of the cylinder is uniform in height during manufacturing, and to improve the appearance quality of the girth weld, the V-shaped girth groove size of the joint part of each sub-cylinder needs to be detected and controlled in advance before welding, and corrective measures need to be taken in time when there is an error. In the prior art, the girth groove size of the joint part of the cylinder is measured by using a sample plate detection method, specifically, a trapezoidal sample plate with the same shape as the V-shaped girth groove is prepared in advance, and the trapezoidal sample plate is inserted into the V-shaped girth groove during detection, and the size of the V-shaped girth groove is determined according to the depth of the trapezoidal sample plate. The sample plate detection method of the V-shaped girth groove has the following disadvantages:

[0004] Firstly, the adaptability is poor: since the angle between the V-shaped surfaces of the V-shaped girth groove exists a certain manufacturing error during manufacturing, in addition, the angle between the V-shaped surfaces will also cause assembly error during the assembly of the joint part of the sub-cylinder. In the case of error between the V-shaped surfaces, the sample plate detection method cannot truly reflect the actual size of the girth groove.

[0005] Secondly, the efficiency of the manual sample plate detection method is low.

[0006] Thirdly, the detected data can only be saved through the record of the detection personnel, and the detection data cannot be directly used to realize the automatic dynamic adjustment of the welding parameters in the welding process. SUMMARY

[0007] In order to solve the above problems, the present application provides a tank container cylinder welding groove comprehensive gauge and a cylinder welding method, which aims to improve the adaptability of the detection of the joint girth groove size of the cylinder, improve the efficiency of the girth groove detection, and realize the dynamic adjustment of the welding parameters of the joint girth weld of the cylinder in the welding process, thereby improving the quality of the girth weld. The specific technical solutions are as follows:

[0008] A kind of comprehensive detection tool of welding bevel of tank container cylinder, including servo electric push rod and the welding bevel comprehensive detection assembly being arranged in the front end of the servo electric push rod, the welding bevel comprehensive detection assembly includes integrated mounting plate being connected in the front end of the servo electric push rod telescopic rod, bevel detection module being arranged on the integrated mounting plate along the direction of moving parallel to the axis of the servo electric push rod telescopic rod, the bevel detection module includes roller seat, bevel detection roller being rotatably arranged in the front end of the roller seat, several numbers of guide rods being connected in the rear end of the roller seat, several numbers of guide holes are provided on the integrated mounting plate, the several numbers of guide rods are correspondingly inserted in the several numbers of guide holes, the rod body of a section of guide rod between the roller seat and integrated mounting plate is equipped with compression spring, the rear end of the guide rod is connected with baffle;The cross-sectional shape of the outer edge of the bevel detection roller is circular arc shape, first distance sensor for detecting the moving distance of roller seat is provided on the integrated mounting plate, the servo electric push rod and first distance sensor are connected with controller respectively.

[0009] Preferably, the controller is MCU controller or PLC controller.

[0010] As further improvement, a kind of comprehensive detection tool of welding bevel of tank container cylinder of the application is further provided with a pair of second distance sensors on the integrated mounting plate, the pair of second distance sensors are placed on the left and right sides of the bevel detection module, the distance measuring direction of the second distance sensor is vertically directed to the outer circular surface of tank container cylinder, and the second distance sensor is connected with the controller.

[0011] As further improvement of the application, a pair of glue spraying devices are further provided on the integrated mounting plate, the pair of glue spraying devices include first color glue spraying device and second color glue spraying device, and the first color glue spraying device and second color glue spraying device are placed on the left and right sides of the bevel detection module, and the glue spraying direction of the glue spraying device is directed to the outer circular surface of tank container cylinder;The glue spraying device includes glue spraying nozzle and high-pressure glue spraying pipeline connected with the glue spraying nozzle, electromagnetic valve for controlling glue spraying action is provided on the high-pressure glue spraying pipeline, and the electromagnetic valve is connected with the controller.

[0012] Preferably, the end of the high-pressure glue spraying pipeline is connected with glue storage tank, and glue spraying pump is provided on a section of high-pressure glue spraying pipeline between the electromagnetic valve and the glue storage tank.

[0013] Preferably, anti-collision protection block for protecting the first distance sensor is provided on the integrated mounting plate opposite to the position of the roller seat.

[0014] In the application, a pair of wall plates are arranged on the roller seat at intervals, a roller shaft is connected between the pair of wall plates, the inner hole of the groove detection roller is provided with a sliding bearing, and the groove detection roller is rotatably arranged on the roller shaft through the sliding bearing; gaps for left and right movement of the groove detection roller are respectively arranged between the left and right ends of the groove detection roller and the pair of wall plates.

[0015] In the application, the front end of the servo electric push rod telescopic rod is provided with a connecting plate, a plurality of number of spacer sleeves are arranged between the integrated mounting plate and the connecting plate, and the relative fixation between the integrated mounting plate and the connecting plate is realized through the connecting screw penetrating through the spacer sleeve.

[0016] In the application, the servo electric push rod is a telescopic rod that can only be telescopic but cannot rotate.

[0017] In the application, the first distance measuring sensor and the second distance measuring sensor are one of an ultrasonic distance measuring sensor, an infrared distance measuring sensor and a laser distance measuring sensor.

[0018] When the groove is detected, the tank container cylinder is supported on the welding roller frame driven by the variable frequency speed regulation motor, the servo electric push rod of the welding groove comprehensive testing fixture is vertically arranged on the base of the welding roller frame and located below the circular seam groove position of the tank container cylinder, and the groove detection roller of the welding groove comprehensive testing fixture is elastically attached to the V-shaped surface of the circular seam groove through the compression spring.

[0019] Preferably, a start-stop switch for controlling the welding roller frame is arranged on the control circuit of the variable frequency speed regulation motor connected with the welding roller frame, the start-stop switch is connected with the controller, and an angle encoding counter for detecting the rotation angle and rotation number of the supporting wheel of the welding roller frame is arranged on the supporting wheel.

[0020] Preferably, the start-stop switch is associated with the electromagnetic valve of the glue spraying device.

[0021] During detection, the cylinder can be detected while rotating, and the glue can be sprayed when the groove is out of tolerance and the cylinder does not stop rotating to realize dynamic marking of the groove out of tolerance position; or the cylinder can be stopped rotating when the groove is found to be out of tolerance, then the glue is sprayed, and the cylinder is rotated after marking to perform subsequent detection.

[0022] A cylinder welding method of a tank container cylinder welding groove comprehensive testing fixture, characterized in that, comprising the following steps:

[0023] (1) cylinder butt joint spot welding: after a pair of cylinders are butt jointed, spot welding is performed on the circular seam butt joint position on the inner side of the cylinder to fix the butt joint of the pair of cylinders;

[0024] (2) Cylinder positioning: After the butt joint of the pair of cylinders, hoist them to the welding roller frame driven by the variable frequency motor for positioning;

[0025] (3) Adjustment and fixation of the welding bevel comprehensive gauge: adjust the position of the welding bevel comprehensive gauge on the welding roller frame base, so that the bevel detection roller is aligned with the girth bevel position at the butt joint of the pair of cylinders, and then the outer edge arc surface of the bevel detection roller is elastically pressed against the V-shaped surface of the girth bevel by controlling the lifting of the telescopic rod of the servo electric push rod;

[0026] (4) Bevel detection: start the variable frequency motor to drive the welding roller frame to rotate the cylinders, and the controller obtains the size of the girth bevel at each position on the circumference by calculation according to the distance data measured by the first and second distance sensors and the arc size data of the outer edge of the bevel detection roller;

[0027] (5) Marking of bevel out-of-tolerance: when the controller finds that the girth bevel is out-of-tolerance at a certain position on the circumference, it determines whether the bevel is oversized or undersized, and then immediately starts the glue spraying device to mark the out-of-tolerance position of the bevel: when the bevel is oversized, the first color glue spraying device is started to make the first color glue adhere to the outer circle of the cylinder; when the bevel is undersized, the second color glue spraying device is started to make the second color glue adhere to the outer circle of the cylinder; the detection is completed after one rotation of the cylinder, the variable frequency motor is turned off, the cylinder stops rotating, and the telescopic rod of the servo electric push rod is retracted to completely separate the bevel detection roller from the cylinder;

[0028] (6) Bevel out-of-tolerance correction: the welding operator knows the bevel out-of-tolerance condition according to the color and circumferential position of the glue adhered to the outer circle of the cylinder, and then takes appropriate measures: re-butting the cylinders, reshaping the cylinders, or locally polishing the bevel to reduce the bevel error.

[0029] As a further improvement, the cylinder welding method of the tank container cylinder welding bevel comprehensive gauge of the application further comprises the following steps after step (6) of bevel out-of-tolerance treatment:

[0030] (7) Pre-welding bevel detection: the method of step (4) is used to detect the bevel again before welding, and the controller records the error data of the girth bevel at each position on the circumference; after the detection is completed, the telescopic rod of the servo electric push rod is retracted to completely separate the bevel detection roller from the cylinder;

[0031] (8) the welding of the cylinder ring weld: open the welding roller frame driven by the frequency conversion speed regulation motor, so that the cylinder rotates, and the automatic welding machine is used to weld the ring groove of the cylinder; during the welding process, the controller controls the error data of the ring groove at each position in the circumferential direction of the cylinder, and appropriately reduces the rotating speed of the cylinder through the frequency conversion speed regulation motor at the position where the size of the ring groove is larger; and appropriately increases the rotating speed of the cylinder through the frequency conversion speed regulation motor at the position where the size of the ring groove is smaller; so as to improve the uniformity of the cylinder ring weld.

[0032] The beneficial effects of the present application are:

[0033] Firstly, the cylinder welding groove comprehensive gauge and the cylinder welding method of the tank container, the specially designed groove comprehensive gauge adopts a groove detection roller as a detection head to detect the V-shaped ring groove of the butt joint part of the cylinder, and the depth of the groove detection roller into the V-shaped ring groove is obtained through the distance measurement of the distance measuring sensor, and the depth of the groove detection roller into the V-shaped ring groove is taken as the measurement standard of the groove size, so as to qualitatively and quantitatively determine the size of the V-shaped ring groove. When the depth of the groove detection roller into the V-shaped ring groove is deep, it indicates that the size of the V-shaped ring groove is large; on the contrary, when the depth of the groove detection roller into the V-shaped ring groove is shallow, it indicates that the size of the V-shaped ring groove is small. In addition, the groove detection roller can float a certain distance left and right, so as to better adapt to the detection of the V-shaped ring groove under the condition of axial position deviation. Therefore, the method is a comprehensive detection method for judging the size of the V-shaped ring groove, and has good adaptability.

[0034] Secondly, the cylinder welding groove comprehensive gauge and the cylinder welding method of the tank container, the groove comprehensive gauge can be directly installed on the base of the welding roller frame, and cooperates with the welding roller frame to realize automatic detection of the cylinder welding groove, and has high detection efficiency.

[0035] Thirdly, the cylinder welding groove comprehensive gauge and the cylinder welding method of the tank container, a pair of glue spraying devices are arranged on the groove comprehensive gauge, and the glue spraying devices can automatically mark the positions with oversized grooves with colored glue during the automatic detection, so as to greatly facilitate the subsequent trimming operation of the oversized groove positions.

[0036] Fourthly, the cylinder welding groove comprehensive gauge and the cylinder welding method of the tank container, the first distance measuring sensor and the pair of second distance measuring sensors are arranged at the same time, so as to eliminate the influence of the roundness error of the cylinder on the detection accuracy of the groove, and improve the detection accuracy of the ring groove.

[0037] Fifth, the invention is a kind of tank container cylinder welding groove comprehensive detection tool and cylinder welding method, the welding groove detection and the welding groove welding are using the common welding roller frame, through the joint use of the welding groove comprehensive detection tool and the welding roller frame driven by servo motor, the dynamic adjustment of welding parameters in the welding process of cylinder butt joint fillet weld can be realized, thereby further improving the quality of fillet weld, so that the height of the fillet weld is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a kind of tank container cylinder welding groove comprehensive detection tool of the invention structure schematic diagram;

[0039] Figure 2 It is Figure 1 Local enlarged view.

[0040] In the figure: 1, servo electric push rod, 2, welding groove comprehensive detection assembly, 3, integrated mounting plate, 4, groove detection module, 5, roller seat, 6, groove detection roller, 7, guide rod, 8, compression spring, 9, baffle, 10, first distance sensor, 11, second distance sensor, 12, cylinder, 13, first color glue spraying device, 14, second color glue spraying device, 15, glue nozzle, 16, high-pressure glue spraying pipeline, 17, electromagnetic valve, 18, anti-collision protection block, 19, roller shaft, 20, sliding bearing, 21, connecting plate, 22, spacer, 23, connecting screw, 24, welding roller frame, 25, base, 26, ring gap groove. DETAILED DESCRIPTION

[0041] The specific embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0042] Example 1:

[0043] As Figures 1 to 2The embodiment of the comprehensive detection tool for the welding groove of the cylinder of the tank container is shown, which comprises a servo electric push rod 1 and a welding groove comprehensive detection assembly 2 arranged at the front end of the servo electric push rod 1. The welding groove comprehensive detection assembly 2 comprises an integrated mounting plate 3 connected at the front end of the telescopic rod of the servo electric push rod 1, a groove detection module 4 arranged on the integrated mounting plate 3 and moving along the direction parallel to the axis of the telescopic rod of the servo electric push rod 1. The groove detection module 4 comprises a roller seat 5, a groove detection roller 6 rotatably arranged at the front end of the roller seat 5, and a plurality of guide rods 7 connected at the rear end of the roller seat 5. A plurality of guide holes are arranged on the integrated mounting plate 3, and the plurality of guide rods 7 are correspondingly inserted into the plurality of guide holes. A compression spring 8 is sleeved on the rod body of the guide rod 7 between the roller seat 5 and the integrated mounting plate 3. The rear end of the guide rod 7 is connected with a baffle 9. The outer edge of the groove detection roller 6 is in the shape of a circular arc. A first distance measuring sensor 10 for detecting the moving distance of the roller seat 5 is arranged on the integrated mounting plate 3. The servo electric push rod 1 and the first distance measuring sensor 10 are connected with a controller.

[0044] Preferably, the controller is an MCU controller or a PLC controller.

[0045] As a further improvement, the embodiment of the comprehensive detection tool for the welding groove of the cylinder of the tank container further comprises a pair of second distance measuring sensors 11 arranged on the integrated mounting plate 3. The pair of second distance measuring sensors 11 are arranged on the left and right sides of the groove detection module 4. The distance measuring direction of the second distance measuring sensors 11 is perpendicular to the outer circular surface of the cylinder of the tank container 12. The second distance measuring sensors 11 are connected with the controller.

[0046] As a further improvement of the embodiment, a pair of glue spraying devices are arranged on the integrated mounting plate 3. The pair of glue spraying devices comprise a first color glue spraying device 13 and a second color glue spraying device 14. The first color glue spraying device 13 and the second color glue spraying device 14 are arranged on the left and right sides of the groove detection module 4. The glue spraying direction of the glue spraying devices 13 and 14 is directed to the outer circular surface of the cylinder of the tank container 12. The glue spraying devices 13 and 14 comprise glue spraying nozzles 15 and high-pressure glue spraying pipelines 16 connected with the glue spraying nozzles 15. Electromagnetic valves 17 for controlling the glue spraying action are arranged on the high-pressure glue spraying pipelines 16. The electromagnetic valves 17 are connected with the controller.

[0047] Preferably, the end of the high-pressure glue spraying pipeline is connected with a glue storage tank. A glue spraying pump is arranged on a section of the high-pressure glue spraying pipeline between the electromagnetic valve and the glue storage tank.

[0048] Preferably, a bump protection block 18 for protecting the first distance measuring sensor 10 is arranged on the integrated mounting plate 3 opposite the position of the roller seat 5.

[0049] In this embodiment, a pair of wall plates are arranged on the roller seat 5 at intervals, a roller shaft 19 is connected between the pair of wall plates, the inner hole of the groove detection roller 6 is provided with a sliding bearing 20, and the groove detection roller 6 is rotatably arranged on the roller shaft 19 through the sliding bearing 20; gaps for left and right movement of the groove detection roller 6 are respectively arranged between the left and right ends of the groove detection roller 6 and the pair of wall plates.

[0050] In this embodiment, a connecting plate 21 is arranged at the front end of the telescopic rod of the servo electric push rod 1, a plurality of spacer sleeves 22 are arranged between the integrated mounting plate 3 and the connecting plate 21, and the relative fixation between the integrated mounting plate 3 and the connecting plate 21 is realized by connecting screws 23 passing through the spacer sleeves 22.

[0051] In this embodiment, the servo electric push rod 1 is a telescopic rod that can only be telescopic but cannot rotate.

[0052] In this embodiment, the first distance measuring sensor 10 and the second distance measuring sensor 11 are one of an ultrasonic distance measuring sensor, an infrared distance measuring sensor, and a laser distance measuring sensor.

[0053] When detecting the groove, the cylindrical body 12 of the tank container is supported on a welding roller frame 24 driven by a variable frequency speed regulation motor, the servo electric push rod 1 of the welding groove comprehensive gauge is vertically arranged on the base 25 of the welding roller frame 24 and located below the position of the circular seam groove 26 of the cylindrical body 12 of the tank container, and the groove detection roller 6 of the welding groove comprehensive gauge is elastically attached to the V-shaped surface of the circular seam groove 26 through the compression spring 8.

[0054] Preferably, a start-stop switch for controlling the welding roller frame 24 is arranged on the control circuit of the variable frequency speed regulation motor connected to the welding roller frame 24, and the start-stop switch is connected to the controller; an angle encoding counter for detecting the rotation angle and the number of rotations of the support wheel is arranged on the support wheel of the welding roller frame 24.

[0055] Preferably, the start-stop switch is associated with the electromagnetic valves of the glue spraying devices 13 and 14.

[0056] During detection, the cylinder 12 can be rotated while being detected, and the glue can be sprayed when the bevel exceeds the standard and the cylinder 12 does not stop rotating, so as to realize dynamic marking of the position where the bevel exceeds the standard. Alternatively, the cylinder 12 can be stopped after the bevel is found to exceed the standard, and then the glue can be sprayed, and the cylinder 12 can be rotated after marking to perform subsequent detection.

[0057] Embodiment 2:

[0058] A cylinder welding method using the comprehensive detection tool for the welding bevel of the cylinder of the tank container in embodiment 1, comprising the following steps:

[0059] (1) cylinder butt joint point welding: after a pair of cylinders 12 are butt jointed, the cylinders 12 are point welded at the girth joint of the inner side of the cylinders 12, so as to fix the pair of cylinders 12;

[0060] (2) cylinder positioning: the pair of cylinders 12 after butt joint are hoisted to the welding roller frame 24 driven by the variable frequency speed regulation motor for positioning;

[0061] (3) adjustment and fixation of the comprehensive detection tool for the welding bevel: the position of the comprehensive detection tool for the welding bevel on the base 25 of the welding roller frame 24 is adjusted, so that the bevel detection roller 6 is aligned with the position of the girth bevel 26 of the butt joint of the pair of cylinders 12, and then the outer edge arc surface of the bevel detection roller 6 is elastically pressed against the V-shaped surface of the girth bevel 26 by controlling the lifting of the telescopic rod of the servo electric push rod 1;

[0062] (4) bevel detection: the variable frequency speed regulation motor is started, so that the welding roller frame 24 is driven to rotate the cylinder 12, and the controller obtains the size of the girth bevel 26 at each position on the circumference by calculation according to the distance data measured by the first distance measuring sensor 10 and the second distance measuring sensor 11, and in combination with the size data of the outer edge arc of the bevel detection roller 6;

[0063] (5) marking of the bevel exceeding the standard: when the controller finds that the girth bevel 26 exceeds the standard at a certain position on the circumference, it is determined whether the bevel is too large or too small; then the glue spraying device is immediately started to mark the position where the bevel exceeds the standard: when it is determined that the bevel is too large, the first color glue spraying device 13 is started, so that the first color glue adheres to the outer circle of the cylinder 12; when it is determined that the bevel is too small, the second color glue spraying device 14 is started, so that the second color glue adheres to the outer circle of the cylinder 12; after the cylinder 12 rotates one circle, the detection is completed, the variable frequency speed regulation motor is turned off, the cylinder 12 stops rotating, and the telescopic rod of the servo electric push rod 1 is retracted, so that the bevel detection roller 6 completely separates from the cylinder 12;

[0064] (6) The trimming of the out-of-tolerance groove: the welding operator knows the out-of-tolerance groove according to the color and circumferential position of the adhesive on the outer circle of the cylinder 12, and then takes appropriate measures; the measures include: re-welding the cylinder 12, or reshaping the cylinder 12, or locally polishing the groove to reduce the groove error.

[0065] As a further improvement, the cylinder welding method of the tank container cylinder welding groove comprehensive gauge of the embodiment further comprises the following steps after the step (6) of the out-of-tolerance groove treatment:

[0066] (7) Pre-welding detection of the groove: the method of step (4) is used to detect the groove again before welding, and the controller records the error data of the circumferential groove 26 at each position; after the detection is completed, the retractable rod of the servo electric push rod 1 is retracted, so that the groove detection roller 6 completely separates from the cylinder;

[0067] (8) Welding of the cylinder circumferential weld: the welding roller frame 24 driven by the variable frequency motor is started, so that the cylinder 12 rotates, and the automatic welding machine is used to weld the circumferential groove 26 of the cylinder 12; during the welding process, the controller adjusts the speed of the variable frequency motor according to the error data of the circumferential groove 26 of the cylinder 12 at each position in the circumferential direction, and appropriately reduces the speed of the cylinder 12 at the position where the circumferential groove 26 is oversized; at the position where the circumferential groove 26 is undersized, the speed of the cylinder 12 is appropriately increased through the variable frequency motor; thereby improving the uniformity of the circumferential weld of the cylinder 12.

[0068] The above is only the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A comprehensive inspection tool for a welding bevel of a cylindrical body of a tank container, characterized by, The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod.

2. A tank container cylinder welding bevel comprehensive gauge according to claim 1, characterized in that, The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod.

3. The tank container cylinder welding bevel comprehensive gauge according to claim 1, characterized in that, The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod.

4. The tank container cylinder welding bevel comprehensive gauge according to claim 1, characterized in that, The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. 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The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push rod. The application relates to a comprehensive detection assembly for a welding bevel, which comprises a servo electric push rod and a welding bevel comprehensive detection assembly arranged at the front end of the servo electric push 5. The tank container cylinder welding bevel comprehensive gauge according to claim 1, characterized in that, When the groove is detected, the tank container cylinder is supported on the welding roller frame driven by the variable frequency motor, the servo electric push rod of the welding groove comprehensive gauge is vertically arranged on the base of the welding roller frame and located below the girth groove position of the tank container cylinder, and the groove detection roller of the welding groove comprehensive gauge is elastically attached to the V-shaped surface of the girth groove through the compression spring.

6. A tank container cylinder welding bevel comprehensive gauge according to claim 5, characterized in that, A start-stop switch for controlling the welding roller frame is arranged on the control circuit of the variable frequency motor connected with the welding roller frame, and the start-stop switch is connected with the controller; an angle encoding counter for detecting the rotation angle and rotation number of the supporting wheel of the welding roller frame is arranged on the supporting wheel.

7. A method of welding a cylinder of a tank container using the cylinder welding bevel comprehensive gauge according to claim 6, characterized in that, The method comprises the following steps: (1) cylinder butt joint spot welding: after a pair of cylinders are butt jointed, spot welding is performed on the girth joint of the inner side of the cylinders to fix the butt joint of the pair of cylinders; (2) cylinder positioning: the butt jointed pair of cylinders are hoisted to the welding roller frame driven by the variable frequency motor for positioning; (3) adjustment and fixation of the welding groove comprehensive gauge: the position of the welding groove comprehensive gauge on the base of the welding roller frame is adjusted so that the groove detection roller is aligned with the girth groove position of the butt joint of the pair of cylinders, and then the outer edge arc surface of the groove detection roller is elastically pressed against the V-shaped surface of the girth groove by controlling the lifting of the telescopic rod of the servo electric push rod; (4) groove detection: the variable frequency motor is started to drive the welding roller frame to rotate, and the controller obtains the size of the girth groove at each position on the circumference by calculation according to the distance data measured by the first and second distance measuring sensors and the arc size data of the outer edge of the groove detection roller; (5) marking of groove out-of-tolerance: when the controller finds that the girth groove is out-of-tolerance at a certain position on the circumference, it is determined whether the groove is oversized or undersized; then the glue spraying device is immediately started to mark the out-of-tolerance position of the groove: when it is determined that the groove is oversized, the first color glue spraying device is started to make the first color glue adhere to the outer circle of the cylinder; when it is determined that the groove is undersized, the second color glue spraying device is started to make the second color glue adhere to the outer circle of the cylinder; the detection is completed after the cylinder rotates one round, the variable frequency motor is stopped, the cylinder stops rotating, and the telescopic rod of the servo electric push rod is retracted so that the groove detection roller is completely separated from the cylinder; (6) groove out-of-tolerance trimming: the welding operator knows the out-of-tolerance condition of the groove according to the color and circumferential position of the glue adhered to the outer circle of the cylinder, and then takes corresponding treatment measures; the treatment measures include: re-performing the butt joint of the cylinder, or reshaping the cylinder, or locally polishing the groove to reduce the error of the groove.

8. A method of welding a cylinder of a tank container according to claim 7, characterized in that Further comprising the following steps after the treatment of the out-of-tolerance groove in step (6): (7) pre-welding detection of the groove: the groove is detected again before welding by the method of step (4), and the controller records the error data of the girth groove at each position on the circumference; after the detection is completed, the telescopic rod of the servo electric push rod is retracted so that the groove detection roller is completely separated from the cylinder. (8) Welding of the cylinder girth weld: open the welding roller frame driven by the frequency conversion speed regulating motor to make the cylinder rotate, and adopt the automatic welding machine to weld the girth groove of the cylinder; during the welding process, the controller controls the rotation speed of the cylinder to be appropriately reduced at the position where the size of the girth groove is large according to the error data of the girth groove at each position in the circumferential direction of the cylinder, and the rotation speed of the cylinder to be appropriately increased at the position where the size of the girth groove is small. Thus the uniformity of the cylinder girth weld is improved.

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