JPH06148093A - Automatic inspection of sanitary earthenware - Google Patents

Abstract

PURPOSE:To automatically measure various sizes and decide propriety without contact by imaging a surface of a sanitary earthenware by two CCD cameras having difference widths of visual fields. CONSTITUTION:A cleaning water tank (sanitary earthenware, work) 12 on a main conveying line is removed to an inspection line by a work moving robot 10, a predetermined operation is conducted by a camera moving robot 16 to image surfaces of the work 12 by two types of CCD cameras 20, 22 having different widths of visual fields. In this case, if necessary, the work 12 is tilted down or handled in other way by a handling robot 14. An obtained image signal is sent to an image processor 26 and a computer 28 to be processed and calculated to automatically measure sizes of parts of the work 12 and decide propriety without contact. Thus, the step of inspecting the work 12 can be automated, enhanced in efficiency, and its labor hour and time can be largely reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic inspection method for sanitary ware.

[0002]

2. Description of the Related Art In the manufacturing process of wash water tanks and other sanitary ware products, it is inspected whether or not the final product is good. Is whether or not the product is molded to the specified size, whether the product surface is cracked, whether foreign matter appears on the surface, and whether the hole for mounting the specified article is at the target position. Whether or not the size of the hole is proper, and so on.

This product inspection includes appearance inspection and product outer diameter,
It can be roughly divided into dimensional inspection such as hole size, etc. Of these, visual inspection can be done quickly by visual inspection, but inspection of product outer diameter dimension, hole position dimension, hole size dimension, etc. In the past, it is the actual situation that a ruler or gauge is held by hand and measured one by one, so it takes a lot of time and labor for the inspection.
It took time.

[0004]

The present invention has been made to solve such a problem, and its gist is to take a picture of a surface of a sanitary ware with a CCD camera to detect the size and to judge the quality. is there.

[0005]

The present invention applies size detection by image processing using a CCD camera to the measurement of the size of each part of a sanitary ware and judges the quality thereof. Various dimension measurements and pass / fail judgments can be performed automatically without contact, and the great effort and time conventionally required for the measurement can be greatly reduced.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, 10 is a work moving robot,
The sanitary ware (wash water tank, here, simply referred to as a work) 12 on the main transfer line is the work moving robot 1.
0 is taken out to the inspection line. Reference numeral 14 is a handling robot for performing handling such as tilting the work 12 when necessary.

Reference numeral 16 is a camera mobile robot, and 18 is a controller for controlling its operation. At the tip of the arm of the camera mobile robot 16, two types of CCD cameras 20 and 22 having different field of view (for example, a 64 mm square field of view and a 128 mm square field of view) and a ring-shaped lighting device 2 are provided.
4 is held.

The two types of CCD cameras 20 and 22 having different fields of view are used here because it is necessary to see a certain surface of the work 12 as a whole and a detailed portion in detail.

In the method of this embodiment, the work 12 on the main transfer line is taken out by the work moving robot 10 onto the inspection line, and the camera moving robot 1 is moved in the inspection area.
6 to perform the required operation, the work 12
Each surface of is captured by the CCD cameras 20 and 22.

At this time, if necessary, the handling robot 14 performs overturning and other handling of the work 12. For example, when the bottom surface of the work 12 needs to be inspected, the handling robot 14 tilts the work 12 and the bottom surface is imaged by the CCD cameras 20 and 22. The obtained video signal is used for the image processing device 26 and the computer 28.
Then, image processing and image processing are performed there, and dimension measurement of each part of the work 12 and quality determination are performed.

As a result, when it is determined that the size of the work 12 is out of the standard value, that is, when the work 12 is determined to be a defective product, the marker 30 marks the surface of the work 12 and the warning light 32 is used. Display is performed.

As described above, according to the method of this embodiment, the dimension detection and the quality determination of the work 12 can be automatically performed without contact, and the work 12 inspection process can be unmanned and highly efficient. it can.

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be applied to the inspection of wash basins and other sanitary ware other than the above washing water tank. Without departing from the scope, it can be implemented in a mode in which various changes are made based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment method of the present invention.

[Explanation of symbols]

 12 wash water tank 16 camera mobile robot 20, 22 CCD camera 24 lighting fixture 30 marker

Claims (1)

[Claims] 1. An automatic method for inspecting sanitary ware, characterized in that the surface of the sanitary ware is imaged by a CCD camera to detect the dimensions and to judge pass / fail.