Robot for all-bearing defect detection of large-capacity flat-bottom container bottom plate and detection method

A technology of flat-bottomed containers and robots, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of poor accuracy and low efficiency, and achieve the effects of improving detection accuracy, avoiding low feedback signal strength, and improving defect detection efficiency

Inactive Publication Date: 2016-09-28
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of low efficiency and poor accuracy in manual flaw detection, and to provide an ultrasonic-based robot for all-round detection of large-volume flat-bottomed container bottom plate defects, which can move in all directions and realize inspection of products. All-round automatic detection of defects, improving detection efficiency and detection accuracy

Method used

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  • Robot for all-bearing defect detection of large-capacity flat-bottom container bottom plate and detection method
  • Robot for all-bearing defect detection of large-capacity flat-bottom container bottom plate and detection method
  • Robot for all-bearing defect detection of large-capacity flat-bottom container bottom plate and detection method

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Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1 Ultrasonic-based omnidirectional defect detection robot

[0040] Such as figure 1 As shown, the ultrasonic-based robot construction components for omni-directional detection of large-volume flat-bottomed container bottom plate defects provided by this embodiment include a fuselage 2, a walking device 1 installed under the fuselage 2, and a robot installed at the end of the fuselage 2. Detection device 3.

[0041] The fuselage 2 is a rectangular vehicle frame formed by connecting four installation beams, the two sides are the installation beams for the traveling device, the front end is the installation beam for the detection device, and the middle beams are connected across the middle of the installation beams on both sides.

[0042] Such as figure 1 and figure 2 As shown, the running gear 1 is composed of four independently moving Mecanum wheel mechanisms mounted on the fuselage. Each Mecanum wheel mechanism is composed of a Mecanum wheel 13, a steppi...

Embodiment 2

[0046] Example 2 Defect position detection on the bottom plate of the oil storage tank

[0047] The above is the main structure of the robot. In order to realize the detection of the defect position, it is also necessary to configure a single-chip microcomputer for communication with the mecanum wheel 13, the stepper motor 11, the first motor 31, the second motor 38 and the ultrasonic probe 315. A detector that detects ultrasonic signals. The microcontroller used in this embodiment is Arduino Mega2560, and the detector used is SIUICTS-9009.

[0048] The defect detection method for detecting the bottom plate of the oil storage tank provided in this embodiment uses the robot in Embodiment 1, puts the robot on the bottom plate of the oil storage tank, adjusts the first slider 322 to the side of the first guide rail 323, and adjusts Rotate the adjustment plate 312 and the position of the second slider 320 on the second guide rail 311, so that the ultrasonic probe 315 is close to ...

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Abstract

The invention discloses a robot for all-bearing defect detection of a large-capacity flat-bottom container bottom plate and a detection method. The robot comprises a robot body, wherein a walking device and a detection device are arranged under the robot body, and the detection device is arranged at one end of the robot body; the walking device consists of four independent Mecanum wheel mechanisms which are arranged on the robot body; the detection device mainly consists of an ultrasonic probe and an ultrasonic probe adjusting mechanism, and the ultrasonic probe is connected with an ultrasonic generator; the ultrasonic probe adjusting mechanism comprises a first adjusting mechanism and a second adjusting mechanism; the first adjusting mechanism is used for driving the ultrasonic probe to move left and right along the horizontal direction; the second adjusting mechanism is used for adjusting the height of the ultrasonic probe, so that the ultrasonic probe is attached with the surface of the to-be-detected container bottom plate to be detected. The robot has the advantages that the all-bearing defect position detection can be performed on the detected container, the missed detection due to low feedback signal intensity caused by inverticality between ultrasonic direction and defect direction is avoided, and the detection accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing, and relates to a defect detection robot, in particular to an ultrasonic-based omnidirectional defect detection robot, a defect detection method using the robot, and using the robot to detect the bottom plate of an oil storage tank. Background technique [0002] Surface defects are generally areas with uneven local physical or chemical properties on the metal surface. Surface defects are parts with high atomic activity and often become the starting position of metal corrosion, which will seriously affect the performance of the product. Taking the storage tank as an example, the storage tank is an important tool for storing flammable, explosive, volatile and toxic media such as crude oil, intermediate oil, and refined oil, and is widely used in industry, national defense, petroleum, petrochemical and other industries. Due to the long-term operation of the storage tank under natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/265
CPCG01N29/048G01N29/265G01N2291/023G01N2291/2695
Inventor 伍剑波王荣彪罗阳王杰黄晓明
Owner SICHUAN UNIV
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