JPH057571Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an ultrasonic probe for preventing marking paint from adhering to the probe during ultrasonic inspection, making inspection impossible. It relates to protective devices.

[Prior Art] Conventionally, various structural members have been inspected for thickness (reduction in thickness due to corrosion), material flaws, welding defects, etc. by ultrasonic inspection.

In conventional ultrasonic inspection, a worker generally presses an ultrasonic probe against the surface to be inspected, collects and records data, and detects parts that are thinner than a predetermined value as a result of the inspection. Workers used to mark the areas where other defects were detected using a marker or the like.

However, in the above method, all work such as measurement, data collection/recording, marking, etc. is done manually, so the measurement work takes a lot of time and requires a lot of effort. There were problems such as individual differences in inspection accuracy and the tendency for marking errors to occur.

For this reason, an ultrasonic inspection apparatus has been proposed in which the above-mentioned series of operations are automatically performed by a single apparatus.

[Problems to be solved by the invention] However, after the probe is pressed against the surface to be inspected and the defective area is marked by spraying paint, the probe must be moved upward. However, there is a problem in that the atomized paint adheres to the detection part of the probe during spraying, resulting in incorrect testing or inability to perform testing.

The present invention was developed by focusing on the above-mentioned conventional problems.It prevents paint from markings from adhering to ultrasonic probes and improves the integrity of the probes and reliability through reliable inspection. The purpose is to improve.

[Means for Solving the Problems] The present invention is an attempt to solve the above-mentioned technical problems, and includes an ultrasonic probe that can be pressed against and separated from a surface to be inspected; In an ultrasonic inspection apparatus equipped with a paint marker that performs marking by spraying paint toward a pressed position on the surface to be inspected, when the probe is separated from the surface to be inspected, the probe Cover the child's detection part,
The present invention also relates to an ultrasonic probe protection device characterized in that it is provided with a protection plate that is retracted outward during a press inspection on a surface to be inspected.

[Function] Therefore, in the present invention, when the probe is separated from the surface to be inspected, the detection part of the probe is covered by the protective plate, so even if marking is performed by detecting a defective part, Atomized paint during marking can be prevented from adhering to the detection part of the probe.

[Examples] Examples of the present invention will be described below with reference to the drawings.

1 to 3 show an example of the present invention applied to an ultrasonic inspection apparatus 1 which is supported on a self-propelled cart (not shown) and is configured to simultaneously inspect a plurality of parts to be inspected. 1 is a probe support plate 3 equipped with a large number of ultrasonic probes 2 at required inspection intervals;
is movable up and down by a rotationally driven lifting arm 4, so that the detection part (lower surface) of the probe 2 can be pressed against the surface to be inspected 5 or retracted upward.

Further, the ultrasonic inspection apparatus 1 includes a paint marker 6 that performs marking by spraying paint toward the position of the surface to be inspected 5 on which each of the probes 2 is pressed. It is provided on the marker holding stand 7 corresponding to the child 2.

In the above configuration, a support shaft 8 parallel to the probe support plate 3 is provided, and a protection plate 9 such as a rubber plate is provided on the support shaft 8 so as to cover the lower surface of the probe 2 when it is raised. It is attached via a rotating arm 10.

Furthermore, the rotating arm 10 is equipped with a spring 11.
Due to this action, a force is applied in a direction in which the protection plate 9 is always placed in a position covering the lower surface of the probe 2.

Further, the rotary arm 10 is formed with an inclined guide surface 12, and the probe support plate 3 is provided with a cam 13, so that the probe support plate 3 is lowered and the probe 2 is moved. When an inspection is performed by being pressed against the surface to be inspected 5, the cam 13 rotates the rotary arm 10 outward against the force of the spring 11 via the inclined guide surface 12, so that the protection plate 9 is exposed to the probe. When the probe 2 is retracted outward from the lower surface of the probe 2 and the probe 2 is raised, the protective plate 9 is configured to cover the lower surface of the probe 2 by the force of the spring 11.

When performing ultrasonic testing by lowering the probe 2 and pressing it against the surface to be inspected 5, the lowering of the cam 13 causes the rotating arm 10 to rotate outward against the force of the spring 11. As a result, the protection plate 9 is retracted outward as shown by the imaginary line in FIG. 3, so that it does not interfere with the ultrasonic examination operation in any way.

Moreover, when the inspection is completed and the probe 2 is raised,
Since the cam 13 also rises, the rotating arm 10 loses the restraining force of the cam 13 and rotates by the force of the spring 11, so that the protection plate 9 comes to cover the lower surface of the probe 2.

Therefore, when the paint marker 6 is used to spray paint to mark the position of the inspected surface 5 corresponding to the probe 2 where a defect has been detected as a result of the inspection, the detection part (lower surface) of the probe 2 is Since it is covered by the protective plate 9, it is possible to prevent paint atomized during spraying from adhering to the probe 2 and deteriorating its detection performance.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and various methods can be selected for moving the protective plate to a position covering the probe and a position evacuated therefrom in relation to the elevation of the probe. Of course, various changes may be made without departing from the gist of the present invention.

[Effects of the invention] As described above, according to the ultrasonic probe protection device of the invention, the detection part of the probe is covered with a protection plate when the probe separates from the surface to be inspected. Because of this, the detection part of the probe can be protected from paint during marking, which enables reliable detection over a long period of time, improves reliability, and also facilitates maintenance. It can produce excellent effects.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a -arrow view of Fig. 1, and Fig. 3 is a -arrow view of Fig. 2.
It is an arrow view. 1 is an ultrasonic inspection device, 2 is an ultrasonic probe, 3 is a probe support plate, 4 is a lifting arm, 5 is a surface to be inspected,
6 is a paint marker, 8 is a support shaft, 9 is a protection plate, 10 is a rotating arm, 11 is a spring, 12
indicates a cam.

Claims (1)

[Scope of utility model registration request] A paint marker that is equipped with an ultrasonic probe that can be pressed against and separated from a surface to be inspected, and that performs marking by spraying paint toward the position where the probe is pressed against the surface to be inspected. In the ultrasonic inspection apparatus equipped with the above-mentioned ultrasonic inspection apparatus, protection that covers the detection part of the probe when the probe is separated from the surface to be inspected, and retreats to the outside when the probe is pressed against the surface to be inspected. An ultrasonic probe protection device characterized by being provided with a plate.