A straight long weld X-ray DR detection device

Abstract

The present invention discloses a straight long weld X-ray DR detection device, comprising: a guide rail, a X-ray machine moving device, a conveying roller, and a detector moving device. A guide rail is provided in an underground detection tunnel in the detection room, and a X-ray machine moving device is installed on the guide rail. Conveyor rollers are provided on the ground plane on both sides of the tunnel. A workpiece is placed on the conveying rollers and the workpiece is transported by the conveying rollers. A detector moving device is provided on the workpiece, and the detector moving device moves on the workpiece to the end of the weld. The conveying rollers transport the workpiece and park the weld position directly above the X-ray machine moving device. The detector moving device and the X-ray machine moving device start working and move synchronously to complete the detection. The present invention solves the drawbacks of traditional technologies. It greatly improves the detection production efficiency, has high integration and automation, saves labor, reduces labor intensity, plays a positive role in improving industry standards and industrial upgrading, and is suitable for wide promotion.

Description

Technical Field

[0001] The invention relates to a nondestructive testing device, in particular to a straight long weld X-ray DR testing device. Background Art

[0002] With the development of the shipbuilding industry and advancements in welding technology, X-ray inspection of ship welds faces increasing opportunities and challenges. During shipbuilding welding, steel plates are often spliced ​​and welded together into ultra-large plates, with widths of up to 30 meters. This often results in defects such as porosity and slag inclusions in the welds, severely impacting the strength and sealing of the ship's hull. To understand and assess the quality of ship welds, non-destructive testing (NDT) is often employed, allowing for the implementation of corrective measures. Traditional NDT methods, such as filming, are cumbersome and require numerous filming and exposure cycles for each 30-meter weld. This labor-intensive process leads to high labor intensity, low efficiency, and high inspection costs. This situation, in terms of inspection efficiency, cost, and visibility, is unable to meet the demands of today's rapidly evolving welding technology, necessitating the urgent need for a more automated, digital technology. Summary of the Invention

[0003] In view of the above problems, the present invention develops a straight long weld X-ray DR detection device.

[0004] The technical means of the present invention are as follows: A straight long weld X-ray DR detection device, comprising: a guide rail, a X-ray machine moving device, a conveyor roller, and a detector moving device. A guide rail is provided in an underground detection tunnel in the detection room, and a X-ray machine moving device is installed on the guide rail. Conveyor rollers are provided on the ground plane on both sides of the tunnel. The workpiece is placed on the conveyor rollers, and the workpiece is conveyed by the conveyor rollers. A detector moving device is provided on the workpiece, and the detector moving device moves on the workpiece to the end of the weld, and the conveyor roller conveys the workpiece to park the weld position directly above the X-ray machine moving device. The detector moving device and the X-ray machine moving device start working and move synchronously to complete the detection.

[0005] The X-ray machine moving device includes: a radiation shielding device, a bracket, an X-ray machine, an electric control box, a mobile car, and a radiation machine limit switch. The mobile car is provided with a bracket, an X-ray machine is installed at the lower end of the bracket, and a radiation shielding device is installed at the upper end of the bracket. The radiation shielding device is placed directly above the radiation window of the X-ray machine to shield scattered rays and leaked rays. A radiation machine limit switch is provided above the radiation shielding device. The mobile car is provided with an electric control box. The mobile car is connected to the guide rail through the wheels below, and carries the X-ray machine moving device to walk on the guide rail.

[0006] The conveying roller includes: a bearing support, a conveying roller body, and a driving motor. The bearing support is installed on the ground, the conveying roller body is arranged in the middle of the bearing support, and the driving motor is installed on one side of the bearing support. The output shaft of the driving motor is connected to the conveying roller body. When the driving motor starts working, it drives the conveying roller body to rotate, thereby conveying the workpiece above it to move.

[0007] The detector moving device includes: a handle, a box, a battery box assembly, a Mecanum wheel group, a power supply assembly, an imaging board limit switch, an industrial smart camera, and an imaging board. Four Mecanum wheel groups are respectively provided on the left and right sides of the box, and four groups of imaging board limit switches are provided behind the Mecanum wheel groups at the four corners of the box. There are handles at the front and back ends of the box, a battery box assembly is provided at the front part of the box, a power supply assembly is provided at the back part of the box, an industrial smart camera is provided at the tail of the box, and an imaging board is provided on the bottom side of the box. According to the characteristics of the Mecanum wheel, the detector moving device can realize movement in any direction on the plane of the workpiece.

[0008] The mobile vehicle is provided with four wheels at the four corners and moves on tracks.

[0009] The mobile vehicle is driven by a gear rack transmission structure or a synchronous wheel and synchronous belt transmission structure.

[0010] The detector moving device is equipped with four Mecanum wheel sets on the left and right sides of the box.

[0011] The battery box component uses lithium batteries or lead-zinc batteries.

[0012] A straight long weld X-ray DR inspection device, the inspection method of which is as follows: Step 1: The inspected steel plate workpiece is transported to an inspection room via a conveyor roller to wait for inspection, and a detector moving device is placed on the workpiece, close to one side of the X-ray machine moving device; Step 2: The X-ray machine moving device drives the moving vehicle to move, and after identifying the edge of the inspected workpiece through the X-ray machine limit switch, it stops and determines the starting position; Step 3: The detector moving device drives a Mecanum wheel assembly to move longitudinally toward the edge of the workpiece, and after identifying the edge of the inspected workpiece through the imaging plate limit switch, it stops and determines the edge starting position; Step 4: The detector moving device drives the Mecanum wheel assembly to move transversely along the edge of the workpiece, and stops after finding the position of the weld through industrial intelligent camera detection; Step 5: Drive the conveyor roller to transport the workpiece together with the detector moving device above it toward the X-ray machine moving device, and position them relative to each other through the X-ray machine limit switch and the imaging plate limit switch. When the detector moving device moves to directly above the X-ray machine moving device, the conveyor roller is stopped. At this time, the X-ray window of the X-ray machine is facing the weld at the end of the workpiece and corresponds to the imaging plate, completing the positioning process of the weld; Step 6: The X-ray machine and the imaging plate start working, and the X-ray machine moving device and the detector moving device move synchronously, and move along the longitudinal direction of the weld for real-time detection; Step 7: When the tail end of the longitudinal weld position is detected, the imaging plate limit switch on the detector moving device is always monitoring the range of the workpiece. When it is determined that it has moved to the edge of the workpiece, the detector moving device is stopped, and a command is sent to the X-ray machine moving device to stop it; Step 8: Turn off the X-ray machine and the imaging plate, and the detection of this weld is completed.

[0013] The safety protection method of the detector moving device is as follows: 4 groups of imaging plate limit switches are provided at the 4 corners of the detector moving device box, distributed around the detector moving device, to detect the range of the steel plate in real time, determine the position, and determine the boundary. When the boundary position is detected, the vehicle stops immediately to prevent it from falling.

[0014] By adopting the above technical solutions, the present invention fundamentally solves the various drawbacks of manual control detection, transforms traditional manual detection into automated detection, greatly improves detection production efficiency, has high integration and automation, saves manpower, and reduces labor intensity. The application and implementation of the present invention has played a positive role in promoting automation and intelligence in the field of non-destructive testing, improving industry standards and industrial upgrading, and is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : Front view of the present invention

[0016] Figure 2 : Left view of the present invention

[0017] Figure 3: Main view of the X-ray machine moving device

[0018] Figure 4 :Left view of the X-ray machine moving device

[0019] Figure 5 : Top view of conveyor roller

[0020] Figure 6 : Side view of conveyor roller

[0021] Figure 7 :Main view of the detector moving device

[0022] Figure 8 :Top view of the detector moving device

[0023] In the figure: 1. Guide rail, 2. X-ray machine moving device, 3. Conveyor roller, 4. Detector moving device, 5. Workpiece, 21. Radiation shielding device, 22. Bracket, 23. X-ray machine, 24. Electric control box, 25. Mobile vehicle, 26. X-ray machine limit switch, 31. Bearing support, 32. Conveyor roller body, 33. Drive motor, 41. Handle, 42. Box body, 43. Battery box assembly, 44. Mecanum wheel assembly, 45. Power supply assembly, 46. Imaging board limit switch, 47. Industrial smart camera, 48. Imaging board. DETAILED DESCRIPTION

[0024] like Figures 1-8 The shown device is an X-ray DR detection device for straight long welds, comprising: a guide rail 1, an X-ray machine moving device 2, a conveying roller 3, and a detector moving device 4. The guide rail 1 is provided in an underground detection tunnel in the detection room, and the X-ray machine moving device 2 is installed on the guide rail 1. Conveying rollers 3 are provided on the ground plane on both sides of the tunnel. The workpiece 5 is placed on the conveying rollers 3, and the workpiece is conveyed by the conveying rollers 3. The detector moving device 4 is provided on the workpiece 5, and the detector moving device 4 moves on the workpiece 5 to the end of the weld. The conveying roller 3 conveys the workpiece 5 to park the weld position directly above the X-ray machine moving device 2. The detector moving device 4 and the X-ray machine moving device 2 start working and move synchronously to complete the detection.

[0025] The X-ray machine mobile device 2 includes a radiation shielding device 21, a bracket 22, an X-ray machine 23, an electrical control box 24, a mobile car 25, and a radiation machine limit switch 26. The mobile car 25 is provided with a bracket 22, and the X-ray machine 23 is installed at the lower end of the bracket 22. The radiation shielding device 21 is installed at the upper end of the bracket 22. The radiation shielding device 21 is placed directly above the radiation window of the X-ray machine 23 to shield scattered rays and leaked rays. A radiation machine limit switch 26 is provided above the radiation shielding device 21. The mobile car 25 is provided with an electrical control box 24. The mobile car 25 is connected to the guide rail 1 through the wheels below, carrying the X-ray machine mobile device 2 to walk on the guide rail.

[0026] The conveying roller 3 includes: a bearing support 31, a conveying roller body 32, and a drive motor 33. The bearing support 31 is installed on the ground, the conveying roller body 32 is provided in the middle of the bearing support 31, and the drive motor 33 is installed on one side of the bearing support 31. The output shaft of the drive motor 33 is connected to the conveying roller body 32. When the drive motor 33 is started, it drives the conveying roller body 32 to rotate, thereby conveying the workpiece 5 thereon to move.

[0027] The detector moving device 4 includes a handle 41, a housing 42, a battery compartment assembly 43, a Mecanum wheel assembly 44, a power supply assembly 45, an imaging plate limit switch 46, an industrial smart camera 47, and an imaging plate 48. Four Mecanum wheel assemblies 44 are located on the left and right sides of the housing 42, respectively. Four imaging plate limit switches 46 are located behind the Mecanum wheel assemblies 44 at the four corners of the housing 42. Handles 41 are located at the front and rear ends of the housing 42. A battery compartment assembly 43 is located at the front of the housing 42, a power supply assembly 45 is located at the rear of the housing 42, an industrial smart camera 47 is located at the rear of the housing 42, and an imaging plate 48 is located on the underside of the housing 42. Due to the characteristics of the Mecanum wheels, the detector moving device 4 can achieve movement in any direction on the plane of the workpiece 5.

[0028] The moving vehicle 25 is provided with four wheels at four corner positions and travels on tracks.

[0029] The driving mechanism of the mobile vehicle 25 is a rack and pinion transmission structure or a synchronous wheel and synchronous belt transmission structure.

[0030] The X-ray machine 23 is a HR-300 / HP11 high-frequency ray machine, which is an existing technology.

[0031] The ray machine limit switch 26 adopts HR6545P type proximity limit switch, which is an existing technology.

[0032] The detector moving device 4 is provided with four Mecanum wheel sets 44 on the left and right sides of the box 42 respectively.

[0033] The battery box assembly 43 is a lithium battery or a lead-zinc battery.

[0034] The imaging plate limit switch 46 adopts the HR654P type proximity limit switch, which is a prior art.

[0035] The industrial intelligent camera 47 adopts the HR654P proximity limit switch, which is an existing technology.

[0036] The imaging plate 48 adopts the HR-3030F / B flat panel imager which is an existing technology.

[0037] A straight long weld X-ray DR detection device, the detection method of which is as follows: the first step: the steel plate workpiece 5 to be detected is transported to the detection room through the conveyor roller 3 to wait for detection, and the detector moving device 4 is placed on the workpiece 5, close to the side of the X-ray machine moving device 2; the second step: the X-ray machine moving device 2 drives the moving vehicle 25 to move, and after the edge of the workpiece 5 to be detected is identified by the X-ray machine limit switch 26, it stops and determines the starting position; the third step: the detector moving device 4 drives the Mecanum wheel group 44 to move longitudinally toward the edge on the workpiece 5, and after the edge of the workpiece 5 to be detected is identified by the imaging plate limit switch 46, it stops and determines the edge starting position; the fourth step: the detector moving device 4 drives the Mecanum wheel group 44 to move longitudinally toward the edge on the workpiece 5, and after the edge of the workpiece 5 to be detected is identified by the imaging plate limit switch 46, it stops and determines the edge starting position; The Nam wheel assembly 44 moves laterally along the edge of the workpiece 5, and stops after the position of the weld is detected by the industrial intelligent camera 47; Step 5: Drive the conveyor roller 3 to convey the workpiece 5 together with the detector moving device 4 above it to the direction of the X-ray machine moving device 2, and position them relative to each other through the X-ray machine limit switch 26 and the imaging plate limit switch 46. When the detector moving device 4 moves to the top of the X-ray machine moving device 2, the conveyor roller stops. At this time, the ray window of the X-ray machine 23 is facing the weld at the end of the workpiece 5 and corresponds to the imaging plate 48, completing the positioning process of the weld; Step 6: The X-ray machine 23 and the imaging plate 48 start working, and the X-ray machine moving device 2 and the detector moving device 4 are positioned relative to each other. Synchronous movement, real-time detection is performed along the longitudinal direction of the weld; Step 7: When the tail end of the longitudinal weld position is detected, the imaging plate limit switch 46 on the detector moving device 4 is always monitoring the range of the workpiece 5. When it is determined that it has moved to the edge of the workpiece 5, the detector moving device 4 is stopped, and a command is sent to the X-ray machine moving device 2 to stop it from moving; Step 8: Turn off the X-ray machine 23 and the imaging plate 48, and the detection of this weld is completed.

[0038] The safety protection method of the detector moving device 4 is as follows: four groups of imaging plate limit switches 46 are provided at the four corners of the box 42 of the detector moving device 4, which are distributed around the detector moving device 4 to detect the range of the steel plate in real time, determine the position, and determine the boundary. When the boundary position is detected, the vehicle stops immediately to prevent it from falling.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A straight long weld X-ray DR detection device, comprising: Guide rails, X-ray machine moving device, conveyor rollers, and detector moving device are provided in the underground inspection tunnel in the inspection room. The X-ray machine moving device is installed on the guide rails. Conveyor rollers are provided on the ground plane on both sides of the tunnel. The workpiece is placed on the conveyor rollers and transported by the conveyor rollers. The detector moving device is provided on the workpiece. The detector moving device moves on the workpiece to the end of the weld. The conveyor rollers transport the workpiece and park the weld position just above the X-ray machine moving device. The detector moving device and the X-ray machine moving device start working and move synchronously to complete the inspection. The X-ray machine moving device includes: a radiation shielding device, a bracket, an X-ray machine, an electric control box, a mobile car, and a limit switch for the X-ray machine. The mobile car is provided with a bracket, an X-ray machine is installed at the lower end of the bracket, and a radiation shielding device is installed at the upper end of the bracket. The radiation shielding device is placed just above the radiation window of the X-ray machine to shield scattered rays and leaked rays. The X-ray machine limit switch is provided above the radiation shielding device. The mobile car is provided with an electric control box. The mobile car is connected to the guide rails via wheels below, and carries the X-ray machine moving device and moves on the guide rails. The conveyor roller includes: a bearing support, a conveyor roller body, and a drive motor. The bearing support is installed on the ground, the conveyor roller body is arranged in the middle of the bearing support, and the drive motor is installed on one side of the bearing support. The output shaft of the drive motor is connected to the conveyor roller body. When the drive motor starts working, it drives the conveyor roller body to rotate, thereby conveying the workpiece thereon to move. The detector moving device includes: a handle, a box, a battery box assembly, a Mecanum wheel group, a power supply assembly, an imaging board limit switch, an industrial smart camera, and an imaging board. Four Mecanum wheel groups are respectively provided on the left and right sides of the box, and four groups of imaging board limit switches are provided behind the Mecanum wheel groups at the four corners of the box. There are handles at the front and back ends of the box, a battery box assembly is provided at the front part of the box, a power supply assembly is provided at the back part of the box, an industrial smart camera is provided at the tail of the box, and an imaging board is provided on the bottom side of the box. According to the characteristics of the Mecanum wheel, the detector moving device can realize movement in any direction on the plane of the workpiece.

2. The straight long weld X-ray DR detection device according to claim 1, characterized in that: The mobile vehicle is provided with four wheels at the four corners and moves on tracks.

3. The straight long weld X-ray DR detection device according to claim 1, characterized in that: The mobile vehicle is driven by a gear rack transmission structure or a synchronous wheel and synchronous belt transmission structure.

4. The straight long weld X-ray DR detection device according to claim 1, characterized in that: The battery box component uses lithium batteries or lead-zinc batteries.

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