Scanning method and equipment of phased array weld joint flaw detector and storage medium

Abstract

The invention relates to the field of track welding seam detection, in particular to a scanning method and equipment of a phased array welding seam flaw detector and a storage medium. Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: an integrated design is adopted: each part only needs to be positioned once, and the rest parts are automatically operated, so that the positioning difficulty is greatly reduced, and the operation steps are simplified; and automatic scanning is realized, so that the time required by detection is greatly shortened, the efficiency is improved, and the manual operation difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the field of rail weld detection, and in particular to a scanning method, equipment and storage medium of a phased array weld flaw detector. Background Art

[0002] Railway transportation is one of the most important modes of transportation in my country. my country's railway operating mileage has reached 140,000 kilometers. Among them, the total operating mileage of high-speed railways has reached more than 30,000 kilometers, ranking first in the world. The longer the railway line, the more potential hidden dangers there are. The importance of railway flaw detection is increasing day by day. Welds are the top priority of rail flaw detection. The existing detection methods require a lot of manpower and material resources to detect. Phased array weld flaw detectors have simple detection methods and fast detection time, which greatly improves the efficiency of weld detection.

[0003] However, the existing phased array weld flaw detector technology is immature and difficult to complete large-scale practical applications and actual work needs. Existing weld flaw detection technology generally relies on pure manual work, or uses a variety of scanning frames to detect flaws in various parts of the weld. These methods require multiple manual positioning and place high demands on operators. With the existing weld flaw detection technology, the inspection of each weld takes a long time. my country's railway mileage ranks first in the world, and the number of welds is countless. Low efficiency is a big pain point. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a scanning method for a phased array weld flaw detector with an integrated design that can realize automated scanning.

[0005] To achieve the above object, the present invention provides a scanning method of a phased array weld flaw detector, and the specific steps are as follows:

[0006] S1. Assemble the equipment and move the flaw detector to the part to be tested;

[0007] S2. Aim the laser at the center of a weld to be inspected and wait for the inspection to begin;

[0008] S3. Operate the control panel to automatically place the upper bracket and start testing;

[0009] S4. Operate the control panel to start scanning various areas of the rail. During the scanning process, try to save the scanning data synchronously;

[0010] S5. Fold the bracket to reset and end the scan.

[0011] Preferably, the step S4 includes step S41, and the step S41 is specifically as follows:

[0012] S41. Operate the control panel to start serial scanning and rail head scanning, and scan the rail head and center projection area of ​​the rail.

[0013] Preferably, the step S4 includes step S42, and the step S42 is specifically as follows:

[0014] S42. Operate the panel, start the 0° scan, turn on the water spray to make the lower bracket fall on the rail foot, and scan the weld in the range of 35°-75° up and down at an angle of 0° to the horizontal. Save the data, and at the same time, scan the rail bottom triangle area with the rail bottom triangular area probe. After completion, retract the lower bracket.

[0015] Preferably, the step S4 includes step S43, and the step S43 is specifically as follows:

[0016] S43. Operate the panel, start the 7° scan, turn on the water spray to place the lower bracket at the bottom of the rail, and use the phased array to scan the weld in the range of 35°-75° up and down at an inward angle of 7°. After saving the data, retract the lower bracket.

[0017] Preferably, the step S4 includes step S44, and the step S44 is specifically as follows:

[0018] S44. Operate the panel, start the 10° scan, turn on the water spray to make the lower bracket fall on the bottom of the rail, and scan the weld in the range of 35°-75° up and down at an angle of 10° outward. After saving the data, retract the probe.

[0019] The present invention also provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the program.

[0020] The present invention also provides a computer-readable storage medium on which a computer program is stored, and the program implements the steps of the above method when executed by a processor.

[0021] Compared with the prior art, the technical solution proposed in this application has the following beneficial effects: integrated design: each part only needs to be positioned once, and the rest are all automated operations, which greatly reduces the difficulty of positioning and simplifies the operating steps; automated scanning: greatly reduces the time required for detection, improves efficiency, and reduces the difficulty of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1is a schematic diagram of the scanning method of the present invention;

[0024] Figure 2 This is a structural diagram of the phased array weld flaw detector used in the present invention;

[0025] Figure 3 A schematic diagram of the scanning area of ​​the present invention;

[0026] In the figure: 1: front and rear displacement guide rail; 2: left and right displacement guide rail; 3: electric control box; 4: positioning guide wheel; 5: laser and alignment camera; 6: water-locking water channel housing; 7: lower bracket landing guide rail; 8: upper bracket landing guide rail. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe and discuss the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Example 1

[0031] See also Figure 1 This embodiment provides a scanning method of a phased array weld flaw detector, and the specific method is as follows:

[0032] Step 1: Aim the laser at the center of the weld;

[0033] Step 2: Operate the control panel to make the upper bracket automatically fall into place;

[0034] Step 3: Operate the control panel to start the serial scanning and rail head scanning, and scan the rail head and the center projection area of ​​the rail;

[0035] Step 4: Operate the panel, start the 0° scan, turn on the water spray to make the lower bracket fall on the bottom of the rail, and scan the weld in the range of 35°-75° up and down at an angle of 0° to the horizontal with the phased array, save the data, and at the same time, scan the triangle area of ​​the bottom of the rail with the probe, and after completion, retract the lower bracket;

[0036] Step 5: Operate the panel, start the 7° scan, turn on the water spray to make the lower bracket fall on the bottom of the rail, and scan the weld seam in the range of 35°-75° up and down at an angle of 7° inward. After saving the data, retract the lower bracket;

[0037] Step 6: Operate the panel, start the 10° scan, turn on the water spray to make the lower bracket fall on the bottom of the rail, and scan the weld in the range of 35°-75° up and down at an angle of 10° outward. After saving the data, retract the probe;

[0038] Step 7: Operate the panel, fold up the bracket and reset it.

[0039] See also Figure 2 and Figure 3 The equipment used is shown in the figure, which consists of 21 probes, 4 steering motors, 6 limiters, 1 frame, 5 guide rails, 6 motors, 1 camera, a laser group, 2 sets of positioning guide wheels, 1 electric control box, and 4 locking screws.

[0040] The rail head and rail waist are scanned using traditional serial and 6 profiling probes. The three areas on both sides of the rail bottom (rail bottom triangle area, upslope area and downslope area) are scanned by difficult area probes and phased array probes. The difficult area probe is composed of 4 conventional K2.5 probes to scan the rail bottom triangle area. The phased array probe cooperates with the motor to achieve 3 lateral angles and 40° up and down fan scanning area covering the two outer areas.

[0041] Example 2

[0042] The present embodiment provides a computer device, such as a smart phone, tablet computer, laptop computer, desktop computer, rack server, blade server, tower server or cabinet server (including an independent server or a server cluster composed of multiple servers) that can execute programs. The computer device of the present embodiment includes at least but is not limited to: a memory and a processor that can communicate with each other through a system bus.

[0043] In this embodiment, the memory (i.e., readable storage medium) includes flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory may be an internal storage unit of a computer device, such as a hard disk or memory of the computer device. In other embodiments, the memory may also be an external storage device of a computer device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the computer device. Of course, the memory may also include both the internal storage unit of the computer device and its external storage device. In this embodiment, the memory is generally used to store an operating system and various application software installed on the computer device. In addition, the memory may also be used to temporarily store various types of data that have been output or are to be output.

[0044] The processor may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip in some embodiments. The processor 22 is generally used to control the overall operation of the computer device. In this embodiment, the processor is used to run the program code stored in the memory or process data.

[0045] This embodiment also provides a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a disk, an optical disk, a server, an App application store, etc., on which a computer program is stored, and the corresponding function is realized when the program is executed by a processor.

[0046] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and one or more of the above embodiments are combined into one embodiment. Those skilled in the art can make various changes or modifications or combinations within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A scanning method for a phased array weld flaw detector, characterized in that: The specific steps are as follows: S1. Assemble the equipment and move the flaw detector to the part to be tested; S2. Aim the laser at the center of a weld to be inspected and wait for the inspection to begin; S3. Operate the control panel to automatically place the upper bracket and start testing; S4. Operate the control panel to start scanning various areas of the rail. During the scanning process, try to save the scanning data synchronously; S5. Fold the bracket to reset and end the scan.

2. The scanning method of a phased array weld flaw detector according to claim 1, characterized in that: The step S4 includes step S41, and the step S41 is specifically as follows: S41. Operate the control panel to start serial scanning and rail head scanning, and scan the rail head and center projection area of ​​the rail.

3. The scanning method of a phased array weld flaw detector according to claim 2, characterized in that: The step S4 includes step S42, and the step S42 is specifically as follows: S42. Operate the panel, start the 0° scan, turn on the water spray to place the lower bracket at the bottom of the rail, and use the phased array to scan the weld in the range of 35°-75° up and down at an angle of 0° to the horizontal. Save the data, and at the same time, use the probe in the triangular area of ​​the rail bottom to scan the triangular area of ​​the rail bottom. After completion, retract the lower bracket.

4. The scanning method of a phased array weld flaw detector according to claim 3, characterized in that: The step S4 includes step S43, and the step S43 is specifically as follows: S43. Operate the panel, start the 7° scan, turn on the water spray to place the lower bracket at the bottom of the rail, and use the phased array to scan the weld in the range of 35°-75° up and down at an inward angle of 7°. After saving the data, retract the lower bracket.

5. The scanning method of a phased array weld flaw detector according to claim 4, characterized in that: The step S4 includes step S44, and the step S44 is specifically as follows: S44. Operate the panel, start the 10° scan, turn on the water spray to make the lower bracket fall on the bottom of the rail, and scan the weld in the range of 35°-75° up and down at an angle of 10° outward. After saving the data, retract the probe.

6. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the method according to any one of claims 1 to 5 are implemented.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

Images