JPH07120345A - Leak tester - Google Patents

Abstract

PURPOSE:To automatically and surely inspect water leak of a body to be inspected such as a faucet or the like. CONSTITUTION:A body to be inspected 18 is suck in a water tank 11. A compressed air is introduced inside the body to be inspected 18. A video camera 14 is set to photograph gushing air bubbles. A processing/controlling part 15 is provided to process image data taken by the video camera 14 to measure the presence/absence of air bubbles and determine whether or not the body to be inspected 18 is good.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leak tester used for water leak inspection of water faucet fittings and the like.

[0002]

2. Description of the Related Art Conventionally, a water leak test of a water faucet metal fitting or the like is performed by submerging the water faucet metal fitting attached to a fixing jig in a water tank and introducing compressed air into the water faucet metal fitting. And
If the faucet metal fitting is defective, the compressed air inside the faucet metal fitting leaks to the outside and bubbles are generated.Therefore, the operator can determine the quality of the faucet metal fitting by looking at the presence of these bubbles. There is.

[0003]

However, the above-mentioned conventional inspection method has the drawback that it takes time and an error occurs because the operator visually inspects it. Therefore, it is an object of the present invention to provide a leak tester capable of automatically and reliably performing a water leak test on a device under test such as a faucet fitting.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a leak tester in which an object to be inspected is submerged in a water tank, compressed air is introduced into the object to be inspected, and the presence or absence of ejected bubbles is measured. , A video camera for photographing the bubbles,
A processing control unit for processing the image information obtained from the video camera to measure the presence / absence of bubbles to determine the quality of the inspection object.

[0005]

In the leak tester of the present invention configured as described above, the processing control unit determines the quality of the inspected object based on the image information from the video camera which has photographed the bubbles ejected from the inspected object. And it can be done in a short time.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows an embodiment of the present invention.
A water tank 11 is provided above 0. Above the water tank 11, a fixing jig 13 for mounting an object to be inspected 18 such as a faucet fitting is arranged, and is formed so as to be movable up and down by a cylinder 12 provided on the pedestal 10. Above the fixing jig 13, a video camera 14 for photographing bubbles ejected from the object 18 to be inspected.
And a lighting device 17.

The processing control section 15 processes the image information obtained from the video camera 14 to measure the presence / absence of bubbles, and determines the quality of the object 18 to be inspected. A monitor 16 is connected to the processing control unit 15.

In the leak tester of the present invention, the object to be inspected 18 to be inspected is attached to the fixing jig 13 in a state where the fixing jig 13 is located above the water tank 11. By the cylinder 12, the fixing jig 13 is moved downward, and the inspection object 18 is submerged in the water tank 11. Compressed air is introduced into the device under test 18 by a device (not shown). Bubbles ejected from the object to be inspected 18 are photographed by the video camera 14 while being illuminated by the illumination device 17, and the image information thereof is sent to the processing control unit 15.

The processing control unit 15 processes the image information and measures the presence or absence of bubbles. If the bubbles are present, the inspected object 18 is determined to be defective, and if the bubbles are not present, the inspected object 1 is detected.
8 is judged to be non-defective. The image information is displayed on the monitor 1.
It is projected on 6. When the inspection is completed, the fixing jig 13 is moved by the cylinder 12 to a position above the water tank 11, and the inspection object 18 is removed to complete the operation.

[0010]

According to the present invention, the processing control unit determines the quality of the object to be inspected based on the image information from the video camera which has photographed the bubbles ejected from the object to be inspected. it can.

[Brief description of drawings]

FIG. 1 shows an embodiment of a leak tester of the present invention, (A)
Is a front view and (B) is a side view.

[Explanation of symbols]

 10 Stand 11 Water Tank 12 Cylinder 13 Fixing Tool 14 Video Camera 15 Processing Control Section 16 Monitor 17 Illuminator 18 Inspected Object

Claims (1)

[Claims] 1. An object to be inspected is submerged in a water tank, compressed air is introduced into the object to be inspected, and the presence or absence of bubbles ejected is measured. A video camera for photographing the bubbles. And a processing control unit that processes image information obtained from the video camera to measure the presence or absence of bubbles to determine whether the inspection target is good or bad.