JPH0678073B2 - Chassis number engraving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vehicle body part (for example, a cowl top panel) in order to attach a chassis number to a vehicle body in a vehicle production process.
The present invention relates to a chassis number embossing device for embossing the chassis number.

[Prior art]

In the automobile production process, a unique chassis number is attached to each vehicle body, and production control and production management are performed by this chassis number.

Further, the chassis number is also used for various verifications of the automobile after it is shipped from the factory.

Therefore, the chassis number is required to be excellent in environmental resistance and not deteriorated due to aging. Therefore, a stamped character is used as the chassis number, and each chassis number is picked up by a Takubook and stored for a certain period of time.

The chassis number as described above can be set in advance by the chassis number embossing device such as cowl top panel (for riding) or frame (truck).
Is stamped on.

[Problems to be Solved by the Invention]

However, in the conventional automobile production system as described above, whether or not the pattern of the chassis number stamped is correct is performed by visual check of the work vehicle after the stamping work on the chassis components. Therefore, there is a possibility that the incorrect stamp may be overlooked.

Therefore, it is an object of the present invention to determine whether or not a chassis number stamped on a vehicle body part is defective immediately after stamping work, which contributes to an improvement in production efficiency of an automobile production system. It is an object of the present invention to provide an undercarriage number engraving device.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the main means adopted by the present invention are, as its gist, an engraving means for engraving a predetermined chassis number on a vehicle body part, and an engraving means for engraving on the vehicle body part. A storage means for storing the predetermined chassis number to be stamped and an optical reading provided in parallel with the stamping means for optically reading the predetermined chassis number on the car body component stamped by the stamping means. Means, conveying means for moving the vehicle body component having the predetermined chassis number stamped by the stamping means to a position corresponding to the optical reading means, the predetermined chassis number stored by the storage means, and A chassis number embossing device according to the present invention, further comprising: a discriminating unit for discriminating the difference between a predetermined chassis number read by an optical reading unit and outputting message information when the chassis number is different or unrecognizable. is there.

[Action]

According to the chassis number embossing device of the present invention, a predetermined bogie number is engraved on the body part by the engraving means,
This predetermined chassis number is stored by the storage means.

Then, the vehicle body component is moved from the conveying means to a position corresponding to the optical reading means arranged in parallel with the embossing means.

After that, the predetermined chassis number on the vehicle body component is read by the optical reading unit, and the discriminating unit determines whether the chassis number detected from the image pattern at this time is different from the predetermined chassis number stored by the storage unit. To be determined.

〔Example〕

Embodiments embodying the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. The following examples are examples of embodying the present invention and are not of the nature to limit the technical scope of the present invention.

FIG. 1 shows a schematic structure of a chassis number embossing device according to an embodiment of the present invention. FIG. 1 (a) is a front view and FIG. 1 (b) is the same figure (a). Left side view of the second
The figure is a schematic block diagram of a control system of the chassis number embossing apparatus.

As shown in FIGS. 1 (a), 1 (b) and 2, the chassis number embossing device according to this embodiment has a single frame 5 on which an embossing means 1, a storage means and an optical means are provided. Reading means 2
And a conveying means 3 and a discriminating means 4.

The stamping means 1 stamps a predetermined bogie number on a vehicle body part 6 of an automobile, and is constituted by arranging, for example, 19 markings in parallel.

The storage means includes the car body component 6 by the embossing means 1.
It stores the above-mentioned predetermined trolley number stamped on it, and is constituted by a memory in the control device 7 arranged on the frame 5.

To the control device 7, data of the chassis number to be stamped on the body part 6 is output from the production instruction device 8 that comprehensively manages the entire system. Then, based on this chassis number, the sequence controller 9 in the control device 7 sequence-controls the chassis number engraving device.

The optical reading means 2 is arranged in parallel with the engraving means 1 on the frame 5 and optically reads a predetermined chassis number on the vehicle body component 6 engraved by the embossing means 1. It is composed of a camera.

In this case, a lighting device arranged in parallel with the optical reading means 2
The body part 6 is illuminated by 10 and the image pattern of the chassis number on the body part 6 is read by the camera.

By using a plurality of cameras together, the identification accuracy of the image pattern of the chassis number can be improved.

The conveying means 3 supports the vehicle body component 6, and after the vehicle body component 6 is engraved with a predetermined chassis number by the embossing means 1, the vehicle body component 6 corresponds to the optical reading means 2. It is to move to the position. Therefore, the conveying means 3 has a position corresponding to the embossing means 1 and the optical reading means 2.
Is reciprocatingly driven to and from the position corresponding to.

The discriminating means 4 discriminates the difference between the predetermined chassis number stored by the storage means and the chassis number read by the optical reading means 2.

When the trolley number recognized from the image pattern read by the optical reading means 2 and the chassis number stamped on the body part 6 by the stamping means 1 are different from each other, or when the correct number is read from the image pattern, If it is not recognized, a message is immediately displayed to the operator by a lamp as a defective chassis number.

The chassis number embossing apparatus according to this embodiment is configured as described above.

Next, the operation procedure of the chassis number embossing device will be described.

First, the production instructing device 8 outputs data regarding a predetermined chassis number to be stamped to the sequence control unit 9 in the control device 7.

After that, when the operator sets the vehicle body component 6 on the conveying means 3, the embossing device is sequence-controlled by the sequence controller 9 and the embossing means 1 embosses the predetermined chassis number on the vehicle body component 6. It

Then, the conveying means 3 supporting the vehicle body component 6 is moved to a position corresponding to the optical reading means 2.

When the body part 6 is moved to a position corresponding to the optical reading means 2, the illumination device 10 illuminates the surface of the body part 6, and the optical reading means 2 illuminates the image of the chassis number on the body part 6. The pattern is read.

The image pattern read by the optical reading unit 2 is transmitted to the discriminating unit 4 for number recognition. When it is determined that the predetermined chassis number stored in advance by the storage unit and the chassis number read by the optical reading unit 2 are different, and it is determined that the chassis number is correctly marked. Data is transmitted to the production instruction device 8.

On the other hand, when the number recognized from the image pattern read by the optical reading means 2 is different from the predetermined chassis number stored by the storage means, or when the number cannot be recognized from the image pattern. , A message is output to the operator by a lamp display.

As a result, the operator can immediately check the presence or absence of malfunction of the marking device.

Therefore, according to the apparatus of this embodiment, it is possible to immediately perform the work of determining whether or not the chassis number stamped on the body part 6 is defective, which greatly contributes to the improvement of the production efficiency of the automobile production system. can do.

Further, by storing in the memory the image pattern of the chassis number read by the optical reading means 2 which constitutes the apparatus of this embodiment, it is possible to carry out the work for collecting the chassis number and storing it as is conventionally done. It can be omitted and the quality control system can be greatly improved.

〔The invention's effect〕

As described above, the present invention provides an engraving means for engraving a predetermined chassis number on a body part and a storage means for storing the predetermined chassis number engraved on the body part by the engraving means. And an optical reading means arranged in parallel with the embossing means for optically reading a predetermined chassis number on the body part stamped by the stamping means, and a predetermined chassis number for stamping by the stamping means. Conveying means for moving the carved body parts to a position corresponding to the optical reading means, a predetermined chassis number stored by the storage means, and a predetermined chassis number read by the optical reading means. Since the chassis number embossing device is provided with a discrimination means for discriminating the difference and for outputting the message information in the case of being different or unrecognizable, the chassis imprinted on the body part. Judgment of whether or not the number is defective It is possible to automatically carry out the work immediately after the embossing work.

As a result, a malfunction of the embossing device can be immediately improved, and the production efficiency of the automobile production system can be improved.

Further, in the above chassis number embossing device, since the embossing means and the discriminating means are integrated, it is not necessary to separately provide a discriminating station.

[Brief description of drawings]

FIG. 1 shows a schematic structure of a chassis number embossing device according to an embodiment of the present invention. FIG. 1 (a) is a front view and FIG. 1 (b) is a left side view in FIG. 1 (a). FIG. 2 is a schematic block diagram of a control system of the chassis number embossing device. [Explanation of symbols] 1 ... stamping means 2 ... optical reading means 3 ... conveying means 4 ... discriminating means 5 ... frame 6 ... body part 7 ... control device.

Claims (1)

[Claims] 1. A stamping means for stamping a predetermined chassis number on a body part, a storage means for storing the predetermined chassis number stamped on the body part by the stamping means, and the stamping means. Optical reading means arranged in parallel with the marking means for optically reading a predetermined chassis number on the chassis parts stamped by the stamping means, and the above-mentioned stamping means for stamping the predetermined chassis number Conveyance means for moving the vehicle body part to a position corresponding to the optical reading means, and discriminating the difference between the predetermined chassis number stored by the storage means and the predetermined chassis number read by the optical reading means. A chassis number embossing device comprising: a discriminating means for outputting message information when different or unrecognizable.