KR101225443B1

KR101225443B1 - Rotating quter-circle arc camera frame for measuring variation of part and method for measuring variation of part using the same

Info

Publication number: KR101225443B1
Application number: KR1020100105551A
Authority: KR
Inventors: 고강희; 임종철
Original assignee: 현대제철 주식회사
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2013-01-22
Also published as: KR20120044132A

Abstract

The present invention relates to a device for measuring the amount of deformation of the product and a method for measuring the amount of deformation of the product using the same, is fixed to the pedestal to which the product is fixed, a horizontal frame rotating in the horizontal direction from the outside of the pedestal, and the edge of the horizontal frame, Providing a deformation measuring apparatus including a circular frame representing a spherical trajectory by the rotation of the horizontal frame and a camera unit mounted to be movable along the circular frame and photographing the product according to latitude and longitude coordinates of the spherical frame; By analyzing the photographing data taken through the camera unit of the device, it is possible to easily measure the amount of deformation of the product, the rotation and movement in all directions around the product for angle shooting in a more diverse range of products Using frame of possible form, symmetry with camera part The invention is equipped with a screen that contrasts the color of the product in the position, and by further equipping the product with a light that can always be illuminated with the same brightness, the invention to maximize the sharpness of the product image, thereby improving the efficiency of measuring the amount of deformation It is about.

Description

Apparatus for measuring the amount of deformation of a product using a rotatable arc-shaped camera frame and a method for measuring the amount of deformation using the same {ROTATING QUTER-CIRCLE ARC CAMERA FRAME FOR MEASURING VARIATION OF PART AND METHOD FOR MEASURING VARIATION OF PART USING THE SAME}

The present invention relates to a device for measuring the amount of deformation of the product using a rotatable arc-shaped camera frame and a method of measuring the amount of deformation using the same, and more particularly to a circular frame that can represent a spherical trajectory around the target product for measuring the amount of deformation The present invention relates to a technology that enables free camera measurement according to latitude and longitude of the hemisphere, and enables accurate measurement data to be easily obtained.

In general, in order to measure the amount of deformation of automobile parts and the like (hereinafter referred to as a product), a method in which an operator manually photographs a camera is used.

At this time, the operator should hold the camera with his hand and keep shooting at a constant distance from the actual product, but it is not easy to maintain a certain distance and the focus is not clear.

An object of the present invention is to obtain a photograph that is accurately focused at a constant interval when measuring the deformation measurement, and can easily take the same part of the product at any time, while maximizing the efficiency of work by enabling the same re-shooting, It is to provide a method for measuring the amount of deformation.

In addition, another object of the present invention is to provide a rotatable arc-shaped camera frame in order to realize the above-described method, the same level of photographing at any time, and the screen which is the background of the lighting and the product that can be directly irradiated to the product At the same time, it is possible to maximize the clarity of the strain measurement image, and after the deformation measurement shooting setting, the operator can maximize the convenience through an automatic device that automatically completes the deformation measurement and analysis even if the operator performs other work. It will be a measuring device.

Deformation measuring device of the product according to an embodiment of the present invention is a pedestal to which the product to be measured is fixed, a horizontal frame to determine the hardness while rotating around the product along the outer periphery of the pedestal and the edge of the horizontal frame A fixed frame, a circular frame indicating a spherical trajectory by rotation of the horizontal frame, and a latitude along the circular frame to be variable so that the camera unit photographs the product according to the latitude and longitude coordinates of the spherical frame and the camera And a screen mounted to the circular frame at a position symmetrical with the portion.

Here, the pedestal preferably uses a transparent pedestal.

Next, the camera unit is used to be mounted to the circular frame in a rail method or an electromagnet method, and includes a laser alignment unit formed to shoot based on the center of the product, and placed in the circular frame to enable simultaneous shooting It can be mounted over.

In addition, the camera unit includes an illumination in which the focus is fixed to the center of the product.

Next, it is preferable to use a variable color screen that can be transformed into two or more colors.

Next, the apparatus for measuring deformation of the product may include a controller configured to receive and analyze photographic data photographed through the camera unit and to control movement of the camera unit and the horizontal frame using the analyzed data. .

The horizontal frame is then driven by a rotary motor disposed on the central axis on which the product is placed.

In addition, the apparatus for measuring the deformation amount of the product according to an embodiment of the present invention is a disc-shaped pedestal to which the product is fixed, a horizontal frame disposed in the form of a donut-shaped disk on the outside of the pedestal to rotate in the horizontal direction, and the horizontal frame A circular frame fixed to an edge of the circular frame representing a spherical trajectory by the rotation of the horizontal frame, and movable to move along the circular frame, for photographing the product according to the latitude and longitude coordinates of the spherical frame; And a screen mounted on the circular frame at a position symmetrical with the camera unit.

Here, the horizontal frame is characterized in that rotated by the friction difference disposed on the outer peripheral surface of the disk.

In addition, the method of measuring the deformation amount of the product according to an embodiment of the present invention in the step of fixing the target product for the measurement to the top of the pedestal, and the circular frame formed so as to represent the spherical trajectory while rotating along the outer angle of the pedestal Mounting the camera unit, and moving the camera unit along the circular frame or rotating the circular frame, photographing the product, and causing the screen to be mounted on the circular frame at a position symmetrical with the camera unit; And comprehensively analyzing the photographed pictures to measure the amount of deformation of the product.

The method may further include recording a log of latitude and longitude coordinates of the camera unit when the camera unit is moved.

The apparatus for measuring the amount of deformation of the product using the rotatable arc-shaped camera frame according to the present invention is to be taken according to the automated equipment at a certain distance from a certain distance, and a log for each of the photographed portion is generated, It provides an effect of increasing the reliability of the molding analysis data.

In addition, the strain measuring device according to the present invention is provided with a screen that is the background of the product and the illumination that can be directly irradiated directly to the product, thereby maximizing the sharpness of the strain measurement image, thereby providing an effect that the strain measurement error can be minimized do.

In addition, the deformation measurement method according to the present invention is easy to retake the error portion later, the operator can maximize the work efficiency because the molding analysis according to the automated equipment after the initial setting, analysis data It also provides the effect of increasing reliability.

1 and 2 are schematic diagrams showing a deformation amount measuring apparatus of a product according to an embodiment of the present invention.
Figure 3 is a schematic diagram showing a method of measuring the deformation amount of the product according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing the deformation amount measuring apparatus of the product according to another embodiment of the present invention.
5 is a schematic view showing an apparatus for measuring deformation of a product according to still another embodiment of the present invention.
6 is a schematic view showing an apparatus and method for measuring deformation of a product according to another embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving the same will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, an apparatus for measuring a deformation amount of a product using a rotatable arc-shaped camera frame according to a preferred embodiment of the present invention and a method of measuring deformation amount using the same will be described in detail with reference to the accompanying drawings.

First, in the case of photographing using the circular frame for measuring the deformation amount according to the present invention, the photographing is performed according to the automated equipment at a predetermined interval at a precise distance. 1 and 2 below show this embodiment.

1 and 2 are schematic diagrams showing a deformation amount measuring apparatus of a product according to an embodiment of the present invention.

1 and 2, the target product 110 for deformation measurement is fixed on the pedestal 100.

Next, a horizontal frame 120 is formed along the horizontal plane of the pedestal 100. At this time, the horizontal frame 120 is provided in the form of a linear camera jig, it is preferable to have a length as long as the distance for measuring the deformation amount.

Therefore, when the camera is fixed to the horizontal frame 120 according to the present invention it is possible to shoot 360 ° of the side of the product at a desired distance.

In addition, as long as the horizontal frame 120 according to the present invention can be rotated around the target product 110, any shape may be used. As an example, a disk-shaped frame as shown in FIG. However, hereinafter, description will be made based on a linear frame structure.

Next, a circular frame 125 that is fixed to the end of the horizontal frame 120 is provided. At this time, the circular frame 125 is provided with a camera unit 130, the screen 150 is provided at a position symmetrical with the camera unit 130.

Such a circular frame 125 shows a complete spherical trajectory according to the rotation of the horizontal frame 120.

That is, the camera photographing hardness is determined by the horizontal frame 120, and the photographing latitude is determined by the circular frame 125. Therefore, according to the combination of these, any latitude and longitude positions can be easily photographed.

In particular, FIG. 1 illustrates an embodiment in which the camera unit 130 is photographed while moving along the hardness of the hemisphere determined by the horizontal frame 120, and FIG. 2 is within a latitude range determined by the camera unit 130 as it moves. In the following example, the horizontal frame 120 moves.

Here, by further providing the screen 150 in a position symmetrical with the camera unit 130, the outline of the product 110 can be more clearly imaged, thereby allowing a more accurate amount of deformation can be measured.

To this end, the screen 150 is preferably provided with a variable color screen having two or more colors contrasted with the product 110.

In addition, in order to capture a clearer image, the illumination having the focal length adjusted to the product 110 may be further mounted to the camera unit 130. At this time, an embodiment of the illumination will be described in more detail in FIG.

In addition, in order to secure a clear image as described above, the pedestal 100 according to the present invention should be capable of photographing at the lower end of the product 110 or to project the color of the screen 150.

Therefore, the pedestal 100 uses a transparent pedestal, it is preferable to use a transparent support of a material having excellent light transmittance. In general, the material having excellent light transmittance may be glass, but a transparent substrate made of a polymer blend having low birefringence may be used.

In this case, as an example of the polymer blend having low birefringence, polycarbonate resin (PC) is used as a main raw material, but trimethyl-cycloheqd-bisphenol-A (trimethyl-cycloheqd-bisphenol-A) having 3,3,3 ', Polymer blends copolymerized with one or more of 3'-tetramethyl-1 (3,3,3 ', 3'-tetramethyl-1), l-spiro-biindane and fluorene-bisphenol-A It is preferable to use.

In addition, the pedestal 100 according to the present invention is shown in the floating state in the air, but may be provided in a side fixed manner that substantially does not interfere with the behavior of the frame, in addition to the transparent support It may have a variety of embodiments such as a fixing method. Therefore, in the present invention, a special description about the fixing method of the pedestal 100 is omitted, and the degree of prediction is not limited to the present invention by various fixing methods.

Next, Figure 3 is a schematic diagram showing a method of measuring the deformation amount of the product according to an embodiment of the present invention.

Here, in FIG. 3, the horizontal frame 120 and the circular frame 125 shown in FIG. 1 or FIG. 2 are omitted.

Referring to FIG. 3, it can be seen that the camera unit 230 photographs each of the plane 210a, the oblique plane 210a + 210b, and the side surface 210b of the product 210 while moving along the circular frame.

In this case, if the horizontal frame is rotated 360 degrees after the camera unit 230 is fixed at the photographing position of the isometric plane 210a + 210b, the photographing can be easily taken at a uniform focal length along the same latitude.

In the past, when a worker shoots a product for measuring the deformation of the product, the reliability of the molding analysis data varies greatly according to the operator's shooting technology. Manpower consumption was high.

In addition, since the operator cannot remember all the errors, it was difficult to accurately focus and shoot with the same distance from the same location when re-shooting.

However, in the present invention, the photographing is performed according to the exact latitude and longitude as shown in FIGS.

In addition, for more accurate data measurement, the camera unit 230 may be equipped with an illumination 260 that can directly irradiate the product 210. When the lighting is mounted as described above, the shadow of the camera unit 260 or the jig and surrounding objects may be removed at any position. At this time, the illumination 260 is mounted so that the focal length can be adjusted to the product so that the same brightness can always reach the product 210. Therefore, it is possible to secure a clear image when measuring the deformation amount.

In addition, by mounting a screen 250 that is a background on the opposite side symmetrical with the camera unit 230 around the product 210, it is possible to ensure a clearer image of the product.

In general, in the case of metal products, since the product color is mainly black, by using a white screen, it is possible to make the contrast of the outer line of the product clearly. Therefore, the strain measurement program recognizes the background as one node to prevent the rapidity of the measurement.

Next, as a strain measuring device for implementing the above method, more specific embodiments will be described as shown in Figure 4 and 5 below.

Figure 4 is a schematic diagram showing the deformation amount measuring apparatus of the product according to another embodiment of the present invention.

4 illustrates a structure in which a circular frame 325 is fixed to an edge portion of a linear horizontal frame 320, and the horizontal frame is formed by a rotation axis 310 coinciding with the central axis of the product 330 to be measured. The structure with the rotary motor 300 to rotate 320 is shown.

At this time, the camera unit is mounted on two or more circular frames 325 to enable simultaneous shooting at various angles with respect to the product to be measured 330. This not only shortens the strain measurement time, but also enables more accurate and accurate measurements.

The illustrated first camera portion 340 and the second camera portion 345 may be moved along the same rail, respectively, or may move along rails parallel to each other.

In addition, the first camera unit 340 and the second camera unit 345 may move not only along the circular frame 325 but also along the horizontal frame 320 as needed.

Thus, each camera portion has rail fixing rollers 350, 355, 360, 365, and laser alignment portions 370, 375 which can be aligned so that the focus of the camera is exactly coincident with the center of the product 330 to be measured. Each).

Next, the product 330 may further include illuminations 360 and 365 that always provide the same brightness, and further include a screen 390 at a position symmetrical with the camera unit.

In this case, the screen 390 is shown in a flat form for convenience, but may also be formed in the shape of an arc-shaped surface in close contact with the inside of the circular frame 325.

5 is a schematic view showing an apparatus for measuring deformation of a product according to still another embodiment of the present invention.

5 illustrates a disc-shaped horizontal frame 420 rather than a linear horizontal frame, in which case the horizontal frame 420 is formed in a donut shape surrounding the pedestal 435 on which the product to be measured 430 is placed. .

As described above, when the horizontal frame 420 is formed in a disk shape, the frame movement can be made more stably, and the friction difference 480 is used at the outer side of the horizontal frame 420, not in a manner in which the rotating motor enters the lower part. Since the rotating method can be used, the lower space of the pedestal 435 can be utilized.

In this case, the friction difference 480 may be a method of being driven by the rotary motor 495 having a rotating shaft 490 on the outer surface of the horizontal frame 420, but is not always limited thereto.

In addition, the camera unit 440 schematically shows an electromagnet fixing method. In this case, in detail, rails or other electromagnet devices to which the camera unit 440 is moved should be shown, but they are not shown in detail due to the limitation of the ground. Therefore, the present invention is not limited due to their absence.

Here, the screen 450 is provided at a position symmetrical with the camera unit 440 as described above in FIG. 4, and may be in a flat or curved form.

In addition, in the case of the horizontal frame 420 according to the present embodiment, since the product 430 or the screen 450 should be projected as it is in some areas, the horizontal frame 420 may be provided using a transparent substrate having the same shape as the pedestal 435. Do.

Next, Figure 6 is a schematic diagram showing an apparatus and method for measuring the deformation amount of the product according to another embodiment of the present invention.

Referring to Figure 6, first as a method for measuring the deformation amount of the product according to an embodiment of the present invention, the step of fixing the target product 500 for the measurement to the upper portion of the pedestal, while rotating along the outer angle of the pedestal to the spherical trajectory Mounting the camera unit 530 on a circular frame formed to be represented, moving the camera unit 530 along the circular frame, or rotating the circular frame, photographing the product 500 and photographed Comprehensive analysis of the photograph, and measuring the amount of deformation of the product 500.

In this case, the step of moving the camera unit 530 along the circular frame may correspond to the steps of ① → ② or ④ → ⑤, and the step of rotating the circular frame may correspond to the step ③.

In addition, measuring the deformation amount of the product 500 by comprehensively analyzing the photo may be performed through the controller 550 connected to the camera unit 530.

The control unit shoots the measurement target product 500 according to the designated number order (① → ② → ③ → ④ → ⑤) by the camera unit 530, so that the shooting can be automatically performed.

In addition, the controller 550 allows the screen 590 to be positioned in a symmetrical position in association with the movement of the camera unit 530, and adjusts the brightness so that the illumination is accurately irradiated onto the product 500 although not shown. It can also play a role.

In this case, a log of each photographed part is generated in the controller 550, so that reliability of the molding analysis data may be increased, and re-shooting of an error part may be facilitated later.

Therefore, the operator can maximize the work efficiency by performing the molding analysis according to the automated equipment after the initial setting, and also has the effect of improving the reliability of the analysis data.

As described above, the deformation amount measuring apparatus according to the present invention by using a rotatable arc-shaped camera frame to enable accurate shooting according to the automated equipment at regular intervals at a certain distance.

In addition, a log for each photographed portion may be generated so that a measurement process such as re-photographing may be easily performed, and reliability of the molding analysis data may be improved.

In addition, the deformation measurement method according to the present invention can be easily retaken for the error part later, the operator can maximize the work efficiency because the molding analysis according to the automated equipment after the initial setting, various products As it can be applied to, it can also maximize its utilization.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Such changes and modifications are intended to fall within the scope of the present invention unless they depart from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.

100, 200, 435: pedestal
110, 210, 330, 430, 500: Product to be measured
120, 320, 420: horizontal frame
125, 325, 425: circular frame
130, 230, 340, 345, 440, 530: camera unit
150, 250, 390, 450, 590: screen
210a: the plane of the product
210b: side of the product
260, 380, 385: lighting
310, 490: rotation axis
300, 495: rotary motor
350, 355, 360, 365: Rail fixing roller
370, 375: laser alignment unit
480: Friction difference
550: control unit

Claims

Pedestal to which the product to be measured is fixed;
A horizontal frame for determining hardness while rotating about the product along the periphery of the pedestal;
A circular frame fixed to an edge of the horizontal frame and representing a spherical trajectory by the rotation of the horizontal frame;
A camera unit mounted to vary the latitude along the circular frame and photographing the product according to the latitude and longitude coordinates of the spherical shape; And
And a screen mounted on the circular frame at a position symmetrical with the camera unit.

The method of claim 1,
The pedestal is
Deformation measuring device of the product, characterized in that the transparent pedestal.

The method of claim 1,
The camera unit
Deformation measuring device of the product, characterized in that mounted to the circular frame by rail or electromagnet method.

The method of claim 1,
The camera unit
Deformation measuring device of a product, characterized in that it comprises a laser alignment unit formed to take a picture based on the center of the product.

The method of claim 1,
The camera unit
Deformation measuring device of the product, characterized in that more than one is mounted on the circular frame to enable simultaneous shooting.

The method of claim 1,
The camera unit
Deformation measuring device of the product, characterized in that it comprises a light is fixed to the center of the product.

The method of claim 1,
The screen is
Deformation measuring device of the product, characterized in that the variable color screen that can be transformed into two or more colors.

The method of claim 1,
Deformation measuring device of the product
And a control unit configured to receive the photographic data photographed through the camera unit and to perform analysis, and to control the movement of the camera unit and the horizontal frame by using the analysis data.

The method of claim 1,
The horizontal frame is
Deformation measuring device of the product, characterized in that driven by a rotary motor disposed on the central axis on which the product is placed.

A disc-shaped pedestal to which the product is fixed;
A horizontal frame disposed in the shape of a donut-shaped disk on the outside of the pedestal and rotating in a horizontal direction;
A circular frame fixed to an edge of the horizontal frame and representing a spherical trajectory by the rotation of the horizontal frame;
A camera unit mounted to be movable along the circular frame and photographing the product according to latitude and longitude coordinates of the spherical shape; And
And a screen mounted on the circular frame at a position symmetrical with the camera unit.

The method of claim 10,
The pedestal is
Deformation measuring device of the product, characterized in that the transparent pedestal.

The method of claim 10,
The camera unit
Deformation measuring device of the product, characterized in that it comprises a light is fixed to the center of the product.

The method of claim 10,
The screen is
Deformation measuring device of the product, characterized in that the variable color screen that can be transformed into two or more colors.

The method of claim 10,
The horizontal frame is
Strain amount measuring device of the product, characterized in that rotated by the friction difference disposed on the outer peripheral surface of the disk.

Securing the target product for measurement to an upper portion of the pedestal;
Mounting a camera unit to a circular frame formed to display a spherical trajectory while rotating along an outer angle of the pedestal;
Moving the camera unit along the circular frame or rotating the circular frame, photographing the product and screen mounting the circular frame at a position symmetrical with the camera unit; And
Comprehensive analysis of the photographed picture, measuring the amount of deformation of the product; Deformation amount measuring method of a product comprising a.

16. The method of claim 15,
When the camera unit is moved,
And recording a log of latitude and longitude coordinates at which the camera unit is located.

16. The method of claim 15,
When the camera unit is moved,
And aligning the focal point of the camera unit to the center of the product by using a laser alignment unit.

16. The method of claim 15,
When shooting the product,
Mounting two or more of the camera unit, the method of measuring the deformation amount of the product, characterized in that for simultaneously photographing the product.

16. The method of claim 15,
When shooting the product,
Mounting the light is fixed to the focus of the center of the product in the camera unit, so that the illumination of the product characterized in that the method for measuring the deformation amount of the product.

16. The method of claim 15,
When shooting the product,
The screen is a method of measuring the amount of deformation of the product, characterized in that by using a variable color screen that can be transformed into two or more colors to be a color contrast with the product.