JPH03278188A - Checking device - Google Patents

Abstract

PURPOSE:To continuously check an article to be checked to display and record read picture data for the occurrence of a specific state even in the case of a product manufactured by a high-speed production line by detecting the specific state of the article to be checked which meets a condition value to record check data of this article. CONSTITUTION:An operator preliminarily inputs reference data, which determines the form of parts or the like picked up with a television camera 100 based on picture data inputted from the television camera 100, from an operation panel 110. Therefore, a measuring and discriminating part 106 discriminates whether parts or the like read by the television camera 100 are good or not based on picture data stored in a buffer 103. When it is discriminated that they are defective, picture data is transferred to a display memory 104 and is displayed on a monitor 105 and is recorded by a tape recorder 109. Thus, check data of the article to be checked is displayed and outputted only when specific data meeting the condition value occurs.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an inspection device, and particularly to an inspection device that continuously inspects the appearance shape of parts, products, etc. produced on a production line or the like.

[Prior Art] In general, inspection equipment that inspects the appearance of parts and the like produced on a production line determines and displays the measurement results and the quality of the product every time the inspection is performed. Such display methods include real-time display in which the appearance of a product is displayed each time it is read by an optical device, or hold display in which the current display state is maintained until the next product is inspected.

Generally, when inspecting products manufactured at high speed, the real-time display cycle becomes short, and in the case of hold display, the inspection repetition cycle is often in the range of tens of milliseconds to several seconds. Even if we tried to visually read and analyze the inspection results, it was not possible to decipher the displayed contents in time, so it was impossible to accurately understand the inspection contents while maintaining production speed.

[Problem to be solved by the invention] In order to solve such problems, conventional methods have been designed to record and collect all the data read by inspection equipment, for example, in a data recorder or a surveillance video device. be. However, even though most of the data recorded in this way is meaningless data, it is necessary to record a large amount of data, which requires an expensive and large-capacity recording medium. In addition, in order to process such a large amount of data, there is a problem in that analysis processing thereof also requires a large amount of time.

The present invention has been made in view of the above-mentioned conventional example. For example, condition values are set to determine whether a product is defective or not, and only when specific data matching such condition values is generated, the product to be inspected is inspected. An object of the present invention is to provide an inspection device capable of displaying and outputting inspection data.

[Means for Solving the Problems] In order to achieve the above object, the inspection device of the present invention has the following configuration. That is, an inspection apparatus that optically reads an inspected item and inspects the inspected item, comprising a setting means for setting a condition value of image data representing the external shape of the inspected item; It has a determining means for determining whether the image data corresponds to the condition value set by the setting means, and an output means for displaying and outputting the image data when it is determined by the determining means that the image data corresponds to the condition value.

Further, according to the embodiment, the apparatus further includes a storage means for storing various data related to the image data and/or the test results when the determination means determines that the condition value is met.

[Operation] In the above configuration, condition values of image data representing the external shape of the inspected item are set, and whether the image data obtained by optically reading the inspected item corresponds to the set condition value. determine whether If it is determined that the condition value is met, it operates to display and output the image data of the inspected item.

Further, if it is determined that the condition value is met, the image data and/or various data related to the test results are stored.

[Embodiment] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[Description of Testing Equipment (FIG. 1)] FIG. 1 is a block diagram showing a schematic configuration of the testing equipment of the embodiment.

In the figure, reference numeral 100 denotes a television camera that captures images of parts, products, etc. manufactured on a production line, and inputs the images in the form of video signals to an inspection equipment main body 101.

102 is an A/D converter which inputs an analog video signal from the television camera 100 and converts it into a digital signal. A buffer 103 is capable of storing at least one screen worth of digital signals from the A/D converter 102. A display memory 104 is used to store one screen worth of image data to be displayed when the image is displayed on a monitor 105 such as a commercially available television monitor.

Reference numeral 106 denotes a measurement/judgment unit that deciphers the external shape of the component based on the image data from the television camera 100 stored in the buffer 103, and measures the external shape of the component based on the image data from the television camera 100 stored in the buffer 103. Determine whether the part is good or defective.

A control unit 107 controls the entire inspection equipment 101. A storage unit 108 stores measurement results, judgment results, and the like. This storage unit may be provided within the device, or may be an external storage device that is detachable from the main body 101. Reference numeral 109 denotes a data recorder into which test results or measurement results output from the test equipment main body 101 can be input and recorded on a recording medium such as recording paper. Reference numeral 110 denotes an operation panel, which is operated by the operator to display freeze/display on the monitor screen, which will be described later.
Based on the through display instruction and the image data stored in the buffer 103, judgment standard data (condition value data), etc., which serve as a standard for judging whether or not the product is non-defective, are input.

With the above configuration, the operator can use the operation panel 110 in advance.
Therefore, based on the image data input from the television camera 100, reference data for determining the shape of parts etc. captured by the television camera 100 is input. Thereby, the measurement/determination unit 106 determines the quality of the parts etc. read by the television camera 100 based on the image data stored in the buffer 103. Here, for example, if it is determined that the product is defective, the image data can be transferred to the display memory 104 and displayed on the monitor 105, and can also be recorded by the data recorder 109.

Furthermore, the image information of this defective product is stored in the storage unit 108 and used for analysis processing of the defective product.

In addition, the operation panel 110 includes a switch that instructs to freeze the monitor display (freeze display function) when a defective product is detected, and a switch that instructs to continue inspecting the next component without freezing. Once other defective products are detected,
A switch is provided for instructing a through display function that allows repeated monitoring output and recording, such as displaying the image data at that time.

[Operation Description (FIGS. 1 and 2)] FIG. 2 is a flowchart showing a control process executed by the control unit 107 of the inspection device according to the embodiment.

First, in step S1, based on image data from the operation panel 110, wait for condition values for determining whether the product to be inspected is a good product or a defective product, for example, to be input, and when the condition values are input, step S2 Then, the value is stored in the control unit 107. Next, the process advances to step S3 to check whether the inspection process has started, and if the inspection has not started, the process returns to step S1.

When the inspection is started, the process advances from step S3 to step S4, and the condition values input in step S2 are measured and determined by the measurement/judgment section 1.
Output to 06. Thereby, the measurement/determination unit 106 inspects the image data in the buffer 103 based on this condition value. Next, in step S5, the buffer 103
When the image data conforms to this condition value, for example, if a certain part of the image data is missing, the process advances to step S6, and the image data stored in the buffer 103 is transferred to the display memory 104. and displayed on the monitor 105.

At the same time, in step S7, data record 1
09, the image data and various data accompanying the inspection results (for example, date, part name, lot number, etc.) are outputted and recorded on recording paper or the like. Furthermore, at this time, these pieces of information may be stored in the storage unit 108 at the same time. Thereby, after the inspection process is completed, various data stored in the storage unit 108 can be read out, and defective products can be analyzed and analyzed over time.

Next, the process proceeds to step S8, and when the display on the screen of the monitor 105 is frozen, the process proceeds to step S10, where the next sample value is input and it is determined whether it meets the condition value. When the image data meets the condition value, proceed to step Sll,
This time, it is assumed that the data is only stored in the data recorder 109 and the storage unit 108 without being displayed on the monitor 105.

If the condition value is not met in step S5, or if the screen is not frozen in step S8, the process advances to step S9;
It is checked whether the inspection process has been completed, and if it has not been completed, the process returns to step S5 and the above-mentioned processing is executed. Furthermore, if the image data does not meet the condition values in step SIO (when the image data is of a normal part), the process advances to step S12 to check whether the inspection process has been completed, and if not, step S
Returning to step 10, the process described above is executed.

Furthermore, by providing the operation panel 110 with a switch that releases the screen freeze display on the monitor 105, step S
The test can be continued by returning from the loop of IO to S12 to the loop of steps 85 to S9.

As explained above, according to this embodiment, by displaying and recording data on defective products during the inspection process, the production line can be prevented from being stopped or its functions damaged after an event occurs. , it is possible to perform data analysis etc. over time.

Although this embodiment describes the case of detecting the occurrence of defective products, the present invention is not limited to this (it goes without saying that various states of the product to be inspected can be detected according to condition values). be.

[Effects of the Invention] As explained above, according to the present invention, it is possible to detect a specific state of the inspected item that meets the condition value and record the inspection data of the inspected item. Even products manufactured on a production line can be inspected continuously, and the read image data when a specific condition occurs can be displayed and recorded.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of the testing device of the embodiment, and FIG. 2 is a flowchart showing testing processing in the testing device of the embodiment. In the figure, 100... TV camera, 101... Inspection equipment body, 103... A/D converter, 104...
Buffer, 105...Display memory, 105...Monitor, 106...Measurement/judgment section, 107...Control section, 108...Storage section, 109...Data recorder.

Claims (3)

[Claims] (1) An inspection device that optically reads an inspected item and inspects the inspected item, comprising: a setting means for setting a condition value of image data representing the external shape of the inspected item; and the image data is a determining means for determining whether the image data corresponds to the condition value set by the setting means; and an output means for displaying and outputting the image data when it is determined by the determining means that the image data corresponds to the condition value. An inspection device comprising: (2) The inspection apparatus according to claim 1, further comprising means for freezing the display by the output means when the determination means determines that the condition value is met. (3) The method according to claim 1, further comprising a storage means for storing various data related to the image data and/or the test results when the determination means determines that the data corresponds to the condition value. Inspection equipment as described.