KR20230133565A - Inspection pallet design system vehicle panel and design method using the same - Google Patents

Abstract

The present invention proposes a design system and method for an inspection pallet for vehicle panels that allows the pallet supporting the vehicle panel to be designed to meet specified standards. The design system of the present invention includes a 3D scanner for scanning a master pallet and a pallet to be inspected compared to the master pallet; And a work PC that sorts the 3D image data of the master pallet and the pallet to be inspected scanned by the 3D scanner, and the 3D image data of the vehicle panel to check whether they match, and provides information on the correction area of the pallet to be inspected. In addition, the work PC is provided with a manipulation tool that allows the pallet to be inspected to be designed according to a set standard, and the manipulation tool may be provided in program form.

Description

Inspection pallet design system and method for vehicle panel {Inspection pallet design system vehicle panel and design method using the same}

The present invention relates to a design system and method for a vehicle pallet that allows a pallet to inspect the condition of a vehicle panel to be designed to meet specified standards.

Automotive panels (e.g., various vehicle parts and equipment) are generally manufactured for each part through a process such as injection or casting. Due to the nature of this manufacturing process, errors compared to the design dimensions inevitably occur during the manufacturing process. If this error is not corrected, it causes various problems such as delay in assembly and lack of stability due to damage to the product due to reasons such as misalignment of corresponding parts during the assembly process of the car body. Therefore, measurement to check the process precision of each panel before assembling the car body is an essential process.

Automotive pallets (also called jigs) are used to inspect vehicle panels of various sizes and shapes. Vehicle panels manufactured using pallets can be manufactured according to specified dimensions and standards. In other words, after each vehicle panel is molded, it is inspected to see if it has been accurately molded to dimensions, and only vehicle panels that pass the inspection can be delivered to the post-process and put into the vehicle assembly process.

However, if an error occurs when the vehicle panel to be inspected is placed on the pallet due to an error in the production of the vehicle pallet, the measurement value will also have an error. In this case, even though it is a normally molded vehicle panel, it may be judged as a defective product, and as explained above, there are problems such as assembly delay, product damage, and the need to dispose of the molded panel. Therefore, it is natural that along with the inspection process for vehicle panels, it is very important to check whether the vehicle pallet on which the vehicle panel is inspected has been designed and manufactured in accordance with the established standards. However, although a system to inspect vehicle panels has been established, there is still no method in place to inspect whether vehicle pallets are properly designed.

Registered Patent No. 10-1005252 (December 24, 2010, multi-pallet inspection device)

The purpose of the present invention was to solve the above problems, and to provide a design system and method for a vehicle pallet that allows the pallet supporting the vehicle panel to be designed accurately according to specified dimensions/standards.

Another object of the present invention is to provide a design system and method for a vehicle pallet that prevents pallets for inspecting vehicle panels from being disposed of unnecessarily.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

To achieve this purpose, an inspection pallet design system for vehicle panels according to an embodiment of the present invention includes a 3D scanner that scans a master pallet and a pallet to be inspected compared to the master pallet; And a work PC that sorts the 3D image data of the master pallet and the inspection target pallet scanned by the 3D scanner, and the 3D image data of the vehicle panel to check whether they match and provides information on the correction area of the inspection target pallet. It is characterized by being comprised including.

The work PC is provided with a manipulation tool so that the pallet to be inspected can be designed according to a set standard, and the manipulation tool may be in the form of a program.

The manipulation tool includes: a 3D scanner manipulation tool for manipulating the 3D scanner; A sorting tool for sorting 3D image data acquired by the 3D scanner; A tool that provides a result report (reporter) that provides information on the correction area based on sorted 3D image data; a decision tool that determines PASS or REJECT based on the result report; And it may include a modification tool for modifying the 3D image data for the pallet to be inspected.

The design system for a vehicle pallet according to another embodiment of the present invention includes a first workspace and a second workspace connected to a wired/wireless network, and the first workspace is used for designing a pallet to be inspected. A PC is installed, and the second workspace includes a 3D scanner for scanning the master pallet and the pallet to be inspected; A workbench supporting the master pallet and the inspection target pallet; And a scan-only monitor is installed to display on the screen the master pallet and the inspection target pallet scanned by the 3D scanner.

The work PC sorts the 3D image data of the master pallet and the inspection target pallet scanned by the 3D scanner and the 3D image data of the vehicle panel to check whether they match, and provides information on the correction area of the inspection target pallet. to provide.

A method of designing an inspection pallet for a vehicle panel according to another embodiment of the present invention includes a system for designing an inspection pallet for a vehicle panel, which designs a pallet capable of optimal storage based on three-dimensional image data of the vehicle panel. Level 1; After producing the palette, a second step of setting it as a master palette according to robot teaching; A third step of matching the 3D image data of the vehicle panel to the 3D image data of the master palette; A fourth step of securing 3D image data by scanning the pallet to be inspected; A fifth step of sorting each 3D image data of the master palette, the inspection target pallet, and the vehicle panel; And a sixth step of providing a result report including whether or not the pallet to be inspected has been modified according to the alignment state.

If there is no correction part in the result report, a seventh step of storing scanned data of the pallet to be inspected and managing it as a document is further included.

If there is a correction part in the result report, an eighth step of performing correction work on the corresponding portion and re-performing from the fourth step of scanning the pallet to be inspected is further included.

The result report provides information including parts to be corrected on the pallet to be inspected.

According to the present invention, it is possible to accurately design an inspection pallet supporting a vehicle panel according to specified dimensions/standards.

According to the present invention, due to the accurate design of the inspection pallet, inspection accuracy for various vehicle panels is improved and the inspection pallet is prevented from being disposed of unnecessarily.

Figure 1a is an overall configuration diagram showing a design system for a vehicle pallet according to a preferred embodiment of the present invention.
FIG. 1B is a configuration diagram of the work PC shown in FIG. 1A.
Figure 2 is a flowchart explaining a method of designing a pallet for a vehicle according to a preferred embodiment of the present invention.
Figure 3 is an example diagram of designing a pallet for a vehicle.
Figure 4 is an example diagram of scanning a master palette.
Figure 5 is a 3D image data diagram in which the master palette and vehicle panel are matched.
Figure 6 is a diagram showing the alignment of 3D image data of the vehicle panel, master pallet, and inspection target pallet.
Figure 7 is a diagram showing an example in which the design of the pallet to be inspected needs to be modified in the result report.
Figure 8 is an example diagram of a failure report showing areas to be modified on a pallet to be inspected.
Figure 9 is an example diagram of a modified portion of a pallet to be inspected.

Since the present invention can be modified in various ways and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Spatially relative terms such as below, beneath, lower, above, upper, etc. facilitate the correlation between one element or component and other elements or components as shown in the drawing. It can be used to describe. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the direction shown in the drawings. For example, when an element shown in a drawing is turned over, an element described as below (below, beneath) another element may be placed above (upper) the other element. Accordingly, the illustrative term below may include both downward and upward directions. Elements can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

As used in the present invention, expressions indicating a part such as “part” or “part” mean that the corresponding component is a device that can include a specific function, software that can include a specific function, or a device that can include a specific function. It means that it can represent a combination of and software, but it cannot be said that it is necessarily limited to the expressed functions. This is only provided to help a more general understanding of the present invention, and is provided to those with ordinary knowledge in the field to which the present invention pertains. Various modifications and variations are possible from this description.

In addition, it should be noted that all electrical signals used in the present invention are examples, and if an inverter or the like is additionally provided in the circuit of the present invention, the signs of all electrical signals to be described below may be reversed. Therefore, the scope of the present invention is not limited to the direction of the signal.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described below as well as all things that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .

Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings.

FIG. 1A is an overall configuration diagram showing a design system for a vehicle pallet according to a preferred embodiment of the present invention, and FIG. 1B is a configuration diagram of the work PC in FIG. 1A.

1A and 1B, the layout for the design system of the present invention includes a first workspace (1st WS) and a second workspace (2nd WS). The first workspace (1st WS) and the second workspace (2nd WS) may be connected to a network through various wired or wireless media.

At least one work PC 110, a database 120, and a digital video storage device (DVR) 130 are installed in the first work space (first WS). The work PC 110 is provided with various manipulation tools for designing pallets for vehicles. In an embodiment, the manipulation tool may be provided in the form of a program. The manipulation tool includes a 3D scanner manipulation tool 112 for manipulating the 3D scanner 220, a sorting tool 113 for sorting 3D image data acquired by the 3D scanner 220, and a sorted 3D image data. It may include a result report (reporter) providing tool 114 that provides information on discrepant areas based on image data, and a decision tool 115 that determines pass (PASS) or fail (REJECT) based on the result report. there is. Furthermore, it may include a modification tool 116 that modifies the 3D image data for the pallet to be inspected.

The database 120 stores 2D/3D image data such as vehicle pallets and various panels, as well as result reports on inspection results.

The digital image storage device 130 stores various image information provided by one or more CCTV1 to CCTV3 installed in the second workspace (second WS). Video information provided by CCTV1 to CCTV3 can be checked by workers through the control monitor (140).

Additionally, a printer 150, a router 160, etc. may be installed in the first workspace (first WS).

The second work space (second WS) is a work space for performing 3D scanning of a pallet, and a certain space 200 for scanning is provided. Here, a workbench 210 of a certain size is provided so that the pallet can be installed in an exact location. That is, a pallet is provided to support the vehicle panel, and the pallet is placed on the work table 210 and its position is fixed. With the pallet fixed at a convenient working height, the exterior of the vehicle panel supported on the pallet is inspected or other necessary work is performed. For example, such a pallet and workbench 210 are used when it is necessary to fix a vehicle panel in an exact position for 3D scanning.

A 3D scanner 220 is provided in the second workspace (second WS). The 3D scanner 220 provides three-dimensional image data of a pallet to be inspected, which is an object to be inspected. In order to easily obtain 3D image data of a pallet to be inspected, two or more 3D scanners 220 may be provided. Alternatively, although not shown, a rotation stage may be provided in the second work space (second WS), and the work table 210 may be positioned on the rotation stage and rotate to obtain three-dimensional image data of the pallet to be inspected. Alternatively, one 3D scanner can acquire 3D image data of a pallet to be inspected while rotating around the worktable 210 along a rail. It can be configured into an appropriate structure depending on the environment and conditions of the work space.

And in the second workspace (second WS), a monitor 230 dedicated to the 3D scanner, a monitor 240 for modifying the pallet to be inspected, CCTV, etc. may be installed.

Next, we will explain how to design a pallet using the design system configured as above. Figure 2 is a flowchart explaining a method of designing a pallet for a vehicle according to a preferred embodiment of the present invention.

Since vehicle panels are very diverse in size and shape, vehicle pallets are designed to implement the optimal storage method based on the 3D image data of the actual vehicle panel to be worked on (100). Figure 3 shows an example of designing a pallet for a vehicle. As shown in FIG. 3, a vehicle pallet (d) is designed by referring to the 3D image data (a, b) of the vehicle panel and performing a simulation (c) to most appropriately store the vehicle panel.

While operating the work PC 110, a pallet for a vehicle is manufactured according to the design drawing. The vehicle pallet is precisely manufactured based on the design drawing, and after robot teaching on the line, the manufactured vehicle pallet is set as the master pallet (S110). The master pallet is a palette that serves as a standard for comparison with the pallet being inspected.

Scanning the mast pallet is performed (120). For scanning work, as shown in FIG. 4, with the mast pallet placed on the worktable 210 in the second work space (second WS), the operator operates the 3D scanner operation tool 112, and thus 3D The scanner 220 is driven and scans the master palette. Through this scanning process, 3D image data of the master palette can be secured (S130). Work contents and screens resulting from scanning work in the second workspace (2nd WS) can be shared through the work PC 110 provided in the first workspace (1st WS).

The worker operates the work PC 110 to match the 3D image data of the vehicle panel to the 3D image data of the master palette. Figure 5 is 3D image data matching the master palette and vehicle panel.

Next, a process of 3D scanning the pallet to be inspected is performed (S140). The pallet subject to inspection may actually be a facility on which vehicle panels, etc. are placed and inspected. Therefore, if the pallet to be inspected is designed incorrectly, the vehicle panel cannot be inspected properly, so it is checked whether the pallet to be inspected is designed correctly.

The pallet to be inspected is accurately placed on the workbench 210, and 3D image data is secured through scanning using the 3D scanner 220 (S150).

Through this process, 3D image data of the vehicle panel, master pallet, and inspection target pallet can be secured.

Next, the above-mentioned 3D image data is sorted to check whether the pallet to be inspected is designed (S160). That is, the 3D image data of the vehicle panel, the master palette, and the 3D image data of the inspection target pallet are aligned by manipulating the alignment tool 113 of the work PC 110, and an example of the alignment is shown in FIG. 6. Specifically, looking at FIG. 6, the 3D image data of the master pallet, the inspection target pallet, and the vehicle panel are overlapped with each other.

In a state where the 3D image data is aligned, the result report providing tool 114 provides discrepancy area information based on the aligned 3D image data (S170).

And the decision tool 115 determines whether the pallet to be inspected passes (PASS) or fails (REJECT) based on the result report. As an inspection result, PASS means that there are no areas to be modified because the master pallet and the inspection target pallet match each other. If the test passes, the scanned 3D image data of the pallet to be inspected is stored in the DB 120 and managed as a document (S180).

On the other hand, REJECT means that it is necessary to modify the design of the pallet being inspected. For example, Figures 7a and 7b show an example in which the 'DIVIDER' position is mismatched and deviates. In other words, there was a deviation between the master pallet and the inspection target pallet. When inspecting a vehicle panel using such an inspection target pallet, the inspection results may be inaccurate.

When receiving a REJECT report, the operator performs modification work on the pallet to be inspected using the modification tool 116 of the work PC 110. At this time, since the failure report provides information including the correction area as shown in FIG. 8 so that the correction area can be accurately identified, the operator will be able to easily confirm the correction and easily perform the correction work. Looking at Figure 8, deviation information on the X, Y, and Z axes is provided for each part of the pallet.

And an example of the correction work is shown in Figure 9. It was moved -2mm to correct the 2mm deviation on the z-axis (Figure 9a), and the 2mm deviation on the y-axis was also moved by +2mm to eliminate it (Figure 9b).

Once the modification work is completed, the inspection target pallet is redesigned to reflect these modifications. Then, the pallet to be inspected is scanned again using the 3D scanner 220 (return to S140) to obtain 3D image data, and the 3D image data of the vehicle panel, master pallet, and pallet to be inspected as previously described. After performing the sorting process again, check again for a match. If no differences occur as a result of re-inspection, a PASS report is provided. Of course, if differences are found in other areas despite this re-inspection, corrections and scanning processes must be performed repeatedly.

As such, it can be seen that the present invention proposes a design system and method suitable for designing a pallet that supports and inspects vehicle panels according to specified standards.

As described above, the present invention is described with reference to the illustrated embodiments, but these are merely illustrative examples, and those of ordinary skill in the art to which the present invention pertains can make various modifications without departing from the gist and scope of the present invention. It will be apparent that variations, modifications, and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached claims.

1st WS: 1st workspace
2nd WS: 2nd workspace
110: Work PC
112: 3D scanner operation tool
113: Alignment tool
114: Result report provision tool
115: Decision tool
116: Edit tool
120: database
130: Digital video playback device
200: Scanner workspace
210: workbench
220: 3D scanner

Claims (9)

3D scanner for scanning the master pallet and the pallet to be inspected against it; and
Includes a work PC that sorts the 3D image data of the master pallet and the pallet to be inspected scanned by the 3D scanner, and the 3D image data of the vehicle panel to check whether they match and provides information on the correction area of the pallet to be inspected. An inspection pallet design system for vehicle panels, characterized in that it is composed of: According to claim 1,
The work PC is provided with an operation tool that allows the inspection target pallet to be designed according to a set standard, and the operation tool is in a program form. An inspection pallet design system for a vehicle panel. According to claim 2,
The manipulation tool is,
a 3D scanner operation tool for operating the 3D scanner;
A sorting tool for sorting 3D image data acquired by the 3D scanner;
A tool that provides a result report (reporter) that provides information on the correction area based on sorted 3D image data;
a decision tool that determines PASS or REJECT based on the result report; and
An inspection pallet design system for vehicle panels, including a modification tool for modifying 3D image data for the pallet to be inspected. It includes a first workspace and a second workspace connected by a wired/wireless network,
The first workspace is,
A work PC is installed to design the pallet to be inspected,
The second workspace is,
3D scanner for scanning master pallets and pallets to be inspected;
A workbench supporting the master pallet and the inspection target pallet; and
An inspection pallet design system for a vehicle panel, in which a scan-only monitor is installed to display the master pallet scanned by the 3D scanner and the inspection target pallet on the screen. According to claim 4,
The work PC sorts the 3D image data of the master pallet and the inspection target pallet scanned by the 3D scanner and the 3D image data of the vehicle panel to check whether they match, and provides information on the correction area of the inspection target pallet. Provides inspection pallet design system for automotive panels. A system for designing an inspection pallet for vehicle panels,
A first step of designing a pallet capable of optimal storage based on the 3D image data of the vehicle panel;
After producing the palette, a second step of setting it as a master palette according to robot teaching;
A third step of matching the 3D image data of the vehicle panel to the 3D image data of the master palette;
A fourth step of securing 3D image data by scanning the pallet to be inspected;
A fifth step of sorting each 3D image data of the master palette, the inspection target pallet, and the vehicle panel; and
A method of designing an inspection pallet for a vehicle panel, characterized in that it is performed including a sixth step of providing a result report including whether the inspection target pallet has been modified according to the alignment state. According to claim 6,
When there is no correction part in the result report, the inspection pallet design method for a vehicle panel further includes a seventh step of storing scanned data of the inspection target pallet and managing it as a document. According to claim 6,
If there is a correction part in the result report, the method of designing an inspection pallet for a vehicle panel further includes an eighth step of performing correction work on the corresponding portion and re-performing the fourth step of scanning the inspection target pallet. In clause 6
The result report is a method of designing an inspection pallet for a vehicle panel, in which information including a part to be modified of the inspection target pallet is provided.