JPH07333205A - Ultrasonic flaw detector probe holder - Google Patents

Abstract

(57) [Summary] [Structure] An ultrasonic flaw detector 2 is connected to a probe holder composed of a probe supporting portion 5, a swinging driving portion 4, a swinging stabilizing spring 3, and a probe moving roller 6. The probe 1 is installed. The swing drive unit 4 includes a rotation motor 11, a swing cam 9, and a swing cam center shaft 10, and drives the probe support unit 8. [Effect] When performing ultrasonic swing scanning of the probe during ultrasonic flaw detection of the subject, the automatic swing scanning is performed so that the swing scanning speed and the swing scanning angle are always constant, and the skill of the inspector is improved. It is possible to eliminate a human error of overlooking a defect relating to non-uniformity of the swing scanning speed and the swing scanning angle depending on the degree.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swivel scanning of ultrasonic oblique angle flaw detection and ultrasonic surface wave flaw detection.

[0002]

2. Description of the Related Art At the time of ultrasonic flaw detection of an object, in order to make constant the defect detection ability due to the difference in the direction of the defect with respect to the ultrasonic waves, the head swing scanning of the probe may be performed.

Conventionally, in the case of performing swing scanning, it has been performed manually.

In the case of manually performing the head swing scanning of the probe, it is necessary for the beginner to have experience in order to keep the head swing scanning speed and the head swing scanning angle constant.

[0005]

In the prior art described above, the swing scanning speed and swing scanning angle during ultrasonic flaw detection often depend on the skill of the inspector, and when a beginner performs ultrasonic flaw detection, There is a possibility that defects may be overlooked, and there is a problem that flaw detection requires more time than an expert so as not to overlook defects.

An object of the present invention is to perform a head swing scanning so that the head swing scanning speed and the head swing scanning angle are always constant when performing the head swing scanning of a probe during ultrasonic flaw detection of an object. It is to eliminate human error which is overlooked by automation and which depends on the skill of an inspector and which is related to non-uniformity of the swinging scan speed and swinging scan angle.

[0007]

Means for Solving the Problems In order to automate the head-and-head scanning of a probe during ultrasonic flaw detection of an object, the probe is supported by a support portion and a neck for supporting the probe of the ultrasonic flaw detection device. The probe is installed on a probe holder composed of a swing drive unit, a swing stabilizing spring, and a probe moving roller to make the swing scanning speed and the swing scanning angle of the probe constant.

[0008]

[Operation] The probe of the ultrasonic flaw detector is installed in the probe holder which is composed of a supporting portion for supporting the probe of the ultrasonic flaw detector, a swing drive unit, a swing stabilizing spring, and a roller for moving the probe. Then
Automate the head-to-head scanning of the probe. As a result, the oscillating scan speed and the oscillating scan angle are always constant, and it is possible to eliminate the human error of overlooking a defect related to unevenness of the oscillating scan speed and the oscillating scan angle, which depends on the skill of the inspector. It will be possible.

[0009]

Embodiments of the present invention will be described below with reference to FIGS.
This will be described with reference to FIGS.

(1) A probe connected to an ultrasonic flaw detector 2 in a probe holder composed of a probe supporting portion 5, a swing driving portion 4, a swing stabilizing spring 3 and a probe moving roller 6. Set up child 1.

(2) The swinging drive unit 4 includes the rotary motor 11
And a swinging cam 9 and a swinging cam central shaft 10 to drive the probe supporting portion 8. At this time, the origin of the swing cam 9 is in a state where the probe 1 is swung to the right as shown in FIG. 4, and in this state, the forces of the two swing stabilizing springs 3 are kept in balance. Adjust it. The rotation of the rotation motor 11 causes the eccentric swing cam 9 as shown in FIG. 5 to rotate, applying a force to the probe support portion 8 to swing the swing drive unit box 1
The probe supporting portion 8 is driven in the left-right direction with the swing fulcrum 13 which is a contact portion between the probe supporting portion 8 and the probe supporting portion 8 as a fulcrum.

(3) Attaching the contact medium to the subject 7,
As shown in FIG. 3, the probe holder to which the probe 1 is attached is installed. The head swing drive unit 4 is driven to perform head swing scanning of the probe 1. Since the probe holder 5 and the probe moving roller 6 connected to the swing stabilizing spring 3 are stable with respect to the subject 7 without being affected by the swing scan, the probe holder is stable. A constant swing scan speed and swing scan angle are obtained. (4) The probe holder is moved by the probe moving roller 6 in the left-right direction in FIG.

Therefore, ultrasonic flaw detection is carried out at a constant swing scanning speed and swing scanning angle, and the probe holder is moved by the probe moving roller 6 on the subject 7, whereby the entire subject 7 is moved. Ultrasonic flaw detection can be performed.

[0014]

According to the present invention, when performing the head swing scanning of the probe during ultrasonic flaw detection of the subject, the head swing scanning is automated so that the head swing scanning speed and the head swing scanning angle are always constant. However, it is possible to eliminate the human error of overlooking a defect relating to the unevenness of the swinging scanning speed and the swinging scanning angle depending on the skill of the inspector.

[Brief description of drawings]

FIG. 1 is an explanatory view of a probe holder according to the present invention.

FIG. 2 is an explanatory diagram of a probe holder according to the present invention.

FIG. 3 is an explanatory view of ultrasonic flaw detection according to the present invention.

FIG. 4 is an explanatory view of a swing drive unit according to the present invention.

FIG. 5 is an explanatory view of a swing according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Probe, 2 ... Ultrasonic flaw detector, 3 ... Pivoting stabilization spring, 4 ... Pivoting drive part, 5 ... Probe support part, 6 ... Probe movement roller.

Claims (1)

[Claims] 1. A probe holder comprising a support portion for supporting a probe connected to an ultrasonic flaw detector, a swing drive portion, a swing stabilizing spring, and a probe moving roller. A probe holder for an ultrasonic flaw detector, which is capable of simply and automatically performing head-to-head scanning.