KR101189518B1 - Apparatus for inspecting surfaces and method for inspecting surfaces using it - Google Patents

Abstract

The present invention relates to a surface inspection apparatus and a surface inspection method using the same. In particular, the present invention relates to a surface inspection apparatus capable of automatically and continuously measuring a plurality of surfaces of a cast steel manufactured through a playing process and a surface inspection method using the same.
Surface inspection apparatus according to an embodiment of the present invention is provided with a reverse plate that is rotated up and down, the cast slab seating portion for inverting the slab seated on the reverse plate, and the slab rotating portion for rotating the slab seating portion parallel to the ground And an integrated control unit configured to control driving of the slab measuring unit and the slab seating unit, the slab rotating unit, and the slab measuring unit to measure the surface of the slab in one region of the slab, and to integrate the data measured by the slab measuring unit. It includes.
In addition, the surface inspection method according to an embodiment of the present invention comprises the steps of seating the cast, rotating the cast in parallel to the ground to measure the side of the cast, inverting the cast, and inverted Rotating the cast slab in parallel with the ground to measure the side of the cast and outputting the integrated data measured from the side of the cast to the outside.

Description

Apparatus for inspecting surfaces and method for inspecting surfaces using it}

The present invention relates to a surface inspection apparatus and a surface inspection method using the same. In particular, the present invention relates to a surface inspection apparatus capable of automatically and continuously measuring a plurality of surfaces of a cast steel manufactured through a playing process and a surface inspection method using the same.

Cast steel produced through a continuous casting process (hereinafter referred to as a 'casting process') is transferred to a subsequent process to be used to manufacture a final product such as sheet steel or hot steel sheet, and according to its size and shape, slab, bloom or bloom or billet.

These casts are surface tested on the surface of the cast to improve the quality of the final product. That is, surface inspection for measuring and analyzing various surface defects such as air bubbles, cracks or oscillation marks is performed on the surface of the cast steel.

Conventionally, in order to inspect the surface of the cast steel, the operator manually manipulates a crane connected to a magnetic chuck, transfers and seats the cast steel, which is a heavy object, to the workbench, and the cast steel is operated by operating the crane. The surface of the plurality of slabs was measured in units of one surface by tilting or rotating. Conventional methods for measuring the surface of the cast steel is a method of scanning the stylus on the surface of the cast object to be measured, and converts the movement of the stylus into an electrical signal or the like and outputs the image of the surface of the cast through a camera or other photographing means. The method of acquiring and analyzing it was used.

By the way, conventionally, there existed a difficulty in performing surface measurement on the multiple surface of a slab. In other words, in order to face the plurality of surfaces of the cast steel, such as the stylus or the camera is inclined to rotate or rotate the work by manual work took a lot of time. In addition, even after converting the position of the cast steel, it takes a lot of work time to reset the position of the cast steel that is the reference of the measurement, there was a problem that the work efficiency of the process of inspecting the surface of the cast steel is reduced.

In addition, since the surface measurement of the cast steel is made by hand, it is difficult to ensure the reliability of the measurement data by generating an error in the measurement result of the surface of the cast steel according to the skill of the operator.

In addition, in the process of tilting or rotating the cast steel, the cast steel may fall from the crane due to the immaturity of the worker, which causes the cast steel to fall to the ground, which damages the cast steel to be measured or further injuries the worker. There was a problem causing.

The present invention provides a surface inspection apparatus capable of automatically measuring a plurality of surfaces of a measurement object which is a heavy object, and a surface inspection method using the same.

The present invention provides a surface inspection apparatus and a surface inspection method using the same by automatically inverting and rotating the cast steel produced through the playing process to continuously measure a plurality of surfaces of the cast steel.

Surface inspection apparatus according to an embodiment of the present invention is provided with a reverse plate that is rotated up and down, the cast slab seating portion for inverting the slab seated on the reverse plate, and the slab rotating portion for rotating the slab seating portion parallel to the ground And an integrated control unit configured to control driving of the slab measuring unit and the slab seating unit, the slab rotating unit, and the slab measuring unit to measure the surface of the slab in one region of the slab, and to integrate the data measured by the slab measuring unit. It includes.

In addition, the surface inspection method according to an embodiment of the present invention comprises the steps of seating the cast, measuring the surface of the cast by rotating the cast in parallel to the ground, inverting the cast, Rotating the cast slab parallel to the ground to measure the surface of the slab and outputting the combined data measured on the surface of the slab to the outside.

According to the surface inspection apparatus and the surface inspection method using the same according to the embodiments of the present invention, it is possible to automatically reverse and rotate the cast steel as a heavy object to continuously measure a plurality of surfaces of the cast steel, thereby inspecting the surface of the cast steel The working time of the process can be shortened.

In addition, it is possible to stably position the cast steel irrespective of the operator's skill, it is possible to prevent the cast iron damage or industrial accidents caused by unexpected causes.

In addition, a plurality of surfaces of the cast steel are automatically measured continuously, and the position at which the reference is measured can be accurately known, so that the reliability of data obtained by measuring the surface of the cast steel can be improved.

1 is a perspective view showing a surface inspection apparatus according to an embodiment of the present invention.
2 is a front view showing the internal configuration of the surface inspection apparatus shown in FIG.
Figure 3 is a schematic view showing a measurement state of the slab measuring unit according to the rotation of the slab in the surface inspection apparatus according to the present invention.
4 is a view schematically showing a state in which the cast iron inverted in the surface inspection apparatus according to the present invention.
5 is a flow chart showing a surface inspection method according to an embodiment of the present invention.
6 to 8 are views showing a driving state of the surface inspection apparatus according to the surface inspection method shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To provide a complete description of the category. Wherein like reference numerals refer to like elements throughout.

1 is a perspective view showing a surface inspection apparatus according to an embodiment of the present invention, Figure 2 is a front view showing the internal configuration of the surface inspection apparatus shown in Figure 2, Figure 3 is a main in the surface inspection apparatus according to the present invention 4 is a view schematically showing a measurement state of the slab measuring unit according to the rotation of the convenience, Figure 4 is a diagram schematically showing a state inverted the cast in the surface inspection apparatus according to the present invention.

1 to 4, the surface inspection apparatus 100 according to an embodiment of the present invention includes a pair of inverting plates 440 and 440 ′ sharing a horizontal axis of rotation 422, and a pair of Slab seating part 400 for seating and inverting (R ₁ ) the slab 10 on the inverting plates 440 and 440 ', and slab rotating part for rotating the slab seating part 400 in parallel to the ground (R ₅ ). (200, 300) and the slab measuring unit 600 for measuring the surface (S ₁ to S ₆ ) of the slab 10 to be rotated (R ₅ ) and inverted (R ₁ ) in one region of the slab 10 and The integrated control unit 500 controls driving of the cast steel seating part 400, the cast steel rotating parts 200 and 300, and the cast steel measuring part 600, and integrates the data measured by the cast steel measuring part 600.

In this embodiment, the cast steel 10, which is a heavy object, is used as an object for surface inspection. In the surface inspection, the cast steel 10 is a specimen obtained by cutting a portion of a slab or bloom manufactured by a playing process to a certain size, and is transferred to the surface inspection apparatus 100 while the outer surface is washed. do. At this time, the transfer of the cast steel 10 to the surface inspection apparatus 100 may be made through a transfer means such as a crane (not shown) connected to the magnetic chuck (magnetic chuck).

The seating seat 400 has a pair of inverting plates 440 and 440 ′ as a place where the seat 10 can be seated, and a pair of inverting plates 440 and 440 sharing the horizontal rotating shaft 422. ') By interlocking the slab 10 can be inverted (R ₁ ) on the pair of inverting plate (440, 440'). That is, the surfaces (S ₁ to S ₆ ) of the slab 10 may be opposed to the slab measuring unit 600 provided on one side of the slab 10, through which the surface ( Surface measurement for inspecting S ₁ to S ₆ ) can be performed.

Here, the slab measuring unit 600 may include an image photographing device such as a camera, and may photograph the surface of the slab 10 as an image. Various surface defects can be analyzed through the image data of the surface of the cast 10. In addition, one side of the slab measuring unit 600 is provided with a position sensor (not shown) that can detect the separation distance (P ₀ , P ₀ '; see Fig. 3) to the surface of the slab 10 to be measured The image data obtained by the slab measuring unit 600 may be converted to the same scale.

The pair of inverting plates 440 and 440 ′ has a flat plate shape, and connecting edges 444 and 444 ′ to which the horizontal rotation shaft 422 is connected are formed at one edge thereof. The pair of inverting plates 440 and 440 'are joined to form a straight line with one side edge formed with connecting rings 444 and 444' on both sides of the horizontal rotating shaft 422, and forming a straight connecting ring 444 and 444 '. Into the inside of the horizontal axis of rotation 422 is inserted. That is, the pair of inverting plates 440 and 440 ′ share a horizontal rotation axis 422 which becomes a central axis during rotation R ₁ .

The pair of inverting plates 440, 440 'sharing the horizontal axis of rotation 422, the seating surface of the slab 10 so that the slab 10 can be stably seated (bottom surface (S ₆ ; It is formed to have an area larger than the area. Moreover, it is preferable that it is formed in square plate shape like the shape of the horizontal cross section of the slab 10. Here, if the cast piece 10 can be stably seated and inverted, the shapes of the inverting plates 440 and 440 ′ may be variously changed.

Meanwhile, rubber pads 442 and 442 'may be attached to upper surfaces of the pair of inverting plates 440 and 440', respectively. Through the rubber pads 442 and 442 ', the shock applied to the inverting plates 440 and 440' during mounting of the slab 10 is alleviated, and the surface of the slab 10 is prevented from being scratched by friction. can do.

Cast slab seating portion 400 is provided with a pair of inverting plate 440, 440 'as described above is rotated with the rotating plate 410 connected to the horizontal rotation (R ₅ ) in the upper portion of the slab rotating parts (200, 300), A pair of inverting plate swivel 420 supporting the horizontal rotating shaft 422 spaced apart from the upper surface of the plate 410, and a pair of inverting plates 440, 440 perpendicular to the upper surface of the rotating plate 410 ') A pair of inverting plate supports 430 to prevent sagging below the horizontal reference line L ₃ (see FIG. 2), and a pair of inverting plates 440 and 440' with the horizontal rotating shaft 422 as the rotation axis. It includes a reverse plate driving means for rotating (R ₁ ).

On the upper surface of the rotating plate 410, the pair of inverting plate swivel 420 and the pair of inverting plate support 430 are arranged so that the opposite directions cross each other. In the present embodiment, a pair of inverting plate supports 430 is formed in a plate shape that is vertically erected, but in the case where it is possible to stably support the outside of the lower surfaces of the inverting plates 440 and 440 '. It may be deformed with two or more bar-shaped supports. At this time, the height of the bar-shaped support is naturally formed to be the same as the height of the plate-shaped reverse plate support.

As such, one side edge of the inversion plate 440 or 440 ′ spaced above the rotating plate 410 is constrained to the horizontal rotation shaft 422, and the lower surface of the other side facing the one side edge is the inversion plate support 430. By being vertically supported by), the pair of inverting plates 440 and 440 ′ may be opened at an angle of 0 ° to 180 °. Here, the state of 0 ° means a case where a pair of inversion plates 440 and 440 'are stacked, and the state of 180 ° forms a horizontal plane of the pair of inversion plates 440 and 440', that is, Each of the pair of reverse plates 440 and 440 'is supported by a pair of reverse plate supports 430.)

The inversion plate driving means includes two semi-circle gears 450 and 450 ', first driving motors 460 and 460', and reduction gears 470 and 470 'to provide a pair of inversion plates 440 and 440'. Can be rotated individually (R ₁ ). The reverse plate driving means according to the present embodiment has the semicircular gears 450 and 450 'coupled to the lower surfaces of the reverse plates 440 and 440', and a driving force for rotating (R ₁ ) the reverse plates 440 and 440 '. First drive motors (460, 460 ') for supplying, and reduction gears (470, 470') for transmitting the driving force supplied from the first drive motors (460, 460 ') to the semi-circular gear (450, 450') and And a first power regulator 490 for controlling the power supply of the first driving motors 460 and 460 'under the control of the integrated control unit 500. Here, one first power regulator 490 is provided in the inverting plate driving means, and a pair of first driving motors 460 and 460 'are all connected.

The pair of semi-circular gears 450 and 450 'are not positioned on the same extension line so as not to interfere with each other during rotation R ₁ , and are spaced apart in parallel along the extension direction (y direction) of the horizontal rotation shaft 422. And are coupled to the bottom surfaces of the pair of inverting plates 440 and 440 ', respectively. In addition, the inverting plates 440 and 440 ′ are provided only at a portion corresponding to the radius area of the semi-circular gears 450 and 450 ′ so that the centers of the semi-circular gears 450 and 450 ′ are formed at the same position as the center of the horizontal rotation axis 422. Is coupled to the lower surface of the. In addition, in order to increase driving efficiency of the first driving motors 460 and 460 ', the shapes of the semi-circular gears 450 and 450' may be modified. That is, other radial regions not joined to the lower surfaces of the inverting plates 440 and 440 'may be cut and deformed into a fan shape, and the semi-circular gears 450 and 450' may have a shape such as an automobile wheel. A plurality of through holes (not shown) may be formed.

The drive shafts of the first driving motors 460 and 460 ′ protrude horizontally in the same direction as the extension direction (y direction) of the horizontal rotation shaft 422. The driving shaft gears 462 and 462 'for transmitting rotation R _{2 of} the driving shaft are coupled to one end of the driving shaft of the first driving motors 460 and 460'. The first driving motors 460 and 460 ′ may rotate the driving shaft freely in a clockwise or counterclockwise direction (R ₂ ) on a vertical plane, and may accurately control the rotation speed of the driving shaft. Thus, as the first driving motors 460 and 460 ', a DC motor, a step motor, a servo motor, and the like can be used.

In this embodiment, the drive shaft gears 462 and 462 'and the semi-circular gears 450 and 450' are not directly engaged, but the reduction gears 470 and 470 'are included therebetween. The reduction gears 470 and 470 'include a first reduction gear 472 and a second reduction gear 474 having different diameters, and the first reduction gear 472 and the second reduction gear 474 are freely rotatable. It is supported by the reduction gear support 476 coupled to the upper surface of the rotating plate 410. The reduction gears 470 and 470 'are provided on the transmission path of the driving force, thereby converting the driving torque of the first driving motors 460 and 460' so that the cast steel 10, which is a heavy object even with a constant driving force, is seated. The inversion plates 440 and 440 'may be rotated.

The cast steel seat 400 as described above is horizontally rotated (R ₅ ) by the cast steel rotating parts (200, 300) connected to the lower portion of the cast steel seat 400. At this time, the cast seat 400 is rotated (R ₅ ) in units of 90 °, the surface (S ₁ , S ₂ , S ₃ , S ₄ or S ₁ , S ₆ , S ₃ , of the plurality of slabs 10). S ₅ ) is continuously opposed to the slab measuring unit 600. (Here, referring to FIG. 3, FIG. 3 (a) is a view showing the state of the cast steel seating portion 400 before the horizontal rotation (R5), Figure 3 (b) is the cast steel seat 400 in the clockwise direction 1). It is the figure which showed the state which rotated by the unit of meeting (90 degree rotation), or the state in which the cast steel seat 400 rotated by three units (270 degree rotation) counterclockwise.)

Cast slab rotating part 200, 300 according to the present embodiment has a rotating part frame 210 that provides an empty interior space, and a vertical rotating shaft 320 penetrating the upper portion of the rotating part frame 210 and seating part 400 It includes a surface plate 310 for seating on the upper surface, and a surface plate driving means for rotating (R ₅ ) the surface plate 310 through the vertical rotation axis 320 in the inner space.

The rotating part frame 210 is fixed to the ground or the factory floor in order to stably invert (R ₁ ) and rotate (R ₅ ) the slab 10 during the surface inspection of the slab 10. To this end, the bottom surface of the rotating frame 210 is provided with a plurality of seating base 212. In addition, the lower surface of the rotating part frame 210 is provided with a plurality of height-adjustable moving wheels 214 to smoothly move the surface inspection apparatus 100 to another place when the surface inspection of the cast steel 10 is not made. Can be. In addition, in the present embodiment, an open side of the rotating unit frame 210 is provided with a cover 22 which can block foreign substances from entering the internal space of the rotating unit frame 210, and at one side of the cover 220. Ventilation holes 222 are formed to prevent the temperature of the internal space from increasing and to allow external air to flow therein.

The upper surface of the rotating part frame 210 as described above is connected to the surface plate 310, which is horizontally rotated (R ₅ ) in a state in which the vertical rotation shaft 320 is penetrated. (Here, the upper end of the vertical rotation shaft 320 is attached to the lower surface of the surface plate 310, and the lower end of the vertical rotation shaft 320 protrudes from the internal space of the rotation frame (210). The lower surface of the surface plate 310 and the upper surface of the rotating part frame 210 are spaced up and down so that horizontal rotation R ₅ is performed smoothly. To this end, a disk-shaped protrusion protrudes from the outer peripheral surface of the center portion of the vertical rotation shaft 320, and this disk-shaped protrusion is constrained to the inside 216 of the upper surface of the rotating frame 210. On the other hand, inside the upper surface 216 of the rotating part frame 210 to minimize the friction with the disk-like projections and the air gap (air) so that the surface 310 can freely rotate (R ₅ ) in the clockwise or counterclockwise direction on the horizontal plane gap or oil gap is formed.

The lower end of the vertical rotation shaft 320 is provided with a vertical rotation shaft gear 330 to receive the driving force supplied from the surface driving means. Rotation of these vertical rotation shaft gear (330) (R ₅₎ and the platen drive means the second driving motor 230 for supplying a driving force for rotating (R ₅₎ to the base (310) for a second drive motor (230 The power supply of the second driving motor 230 and the driving force regulator 240 is controlled by the driving force regulator 240 and the integrated control unit 500 controlled by the driving force supplied from the control unit and the driving force supplied from the vertical rotary shaft gear 330. It includes a second power regulator 270 to adjust.

Like the first driving motors 460 and 460 ′, the second driving motor 230 may freely rotate (R ₅ ) the driving shaft of the second driving motor 230 in a clockwise or counterclockwise direction on a vertical plane. DC motor, step motor, servo motor, etc. can be applied to accurately control the number of revolutions. In addition, the drive shaft gear 232 is coupled to the drive shaft of the second drive motor 230 to transmit the driving force to the drive force regulator 240. The driving force transmitted by the rotation (R ₃ ) of the drive shaft gear 232 to the driving force regulator 240 may be made in various ways, and in this embodiment, the timing belt as the driving force supplied from the second driving motor 230. The timing belt 250 is rotated to rotate the driving force regulator side gear 242 provided on one side of the driving force regulator 240 (R ₄ ). As such, in addition to the driving force transmission method using the timing belt, the driving shaft gear 232 and the driving force regulator side gear 242 may be directly engaged to transfer the driving force.

Although not shown, the driving force regulator 240 is provided with a reducer that can adjust the strength of the driving force supplied from the second driving motor 230 and a clutch that can adjust the presence or absence of rotation of the surface plate 310. Here, it is possible to smoothly rotate (R ₅ ) the cast steel seating portion 400 is mounted on the cast steel 10 is a heavy weight through the reducer, when the unexpected problem occurs the rotation of the surface plate 310 through the clutch operation ( R ₅ ) can be paused.

On the other hand, the upper surface of the driving force regulator 240 is provided with a driving force regulator upper gear 260 is the driving force adjusted in the driving force regulator 240 is transmitted to the vertical rotation shaft gear 330. Therefore, the surface plate 310 connected to the vertical rotation shaft 320 may be rotated (R ₅ ) by the driving force supplied from the second driving motor 230.

The second power regulator 270 adjusts the power supply of the second driving motor 230 and the driving force regulator 240 under the driving control of the integrated control unit 500. To this end, the second power regulator 270 is connected to a power supply line 272 that receives power from the outside of the surface inspection apparatus, and a signal line or signal supply line 274 that receives a control command from the integrated control unit 500.

In addition, a power supply line and a signal supply line are also connected between the second power regulator 270 and the first power regulator 490 provided in the seating part 400, and the first power regulator through the second power regulator 270. 490 can be drive controlled. Meanwhile, in the present embodiment, the power supply line and the signal supply line between the first power regulator 490 and the second power regulator 270 are formed up and down on the surface plate 310, the vertical rotation shaft 320, and the vertical rotation shaft gear 330. It is installed through a through hole (not shown). At this time, the direction (z direction) of the virtual axis (extension axis of the through hole) in which the surface plate 310, the vertical rotation shaft 320, and the vertical rotation shaft gear 330 are vertically aligned is the rotational center axis of the cast seat 400 ( Since it is located on L _c ) the power supply line and the signal supply line connected between the first power regulator 490 and the second power regulator 270 so as not to disturb the rotation (R ₅ ) of the seating portion 400. do.

The integrated control unit 500 is provided on the outside of the cast steel rotating parts (200, 300). In the present embodiment, the control command of the integrated control unit 500 is transmitted to the second power regulator 270 via a wire, that is, a signal supply line 274, but a wireless method may be used as a modification. (The control command transmitted to the second power regulator 270 is transmitted to the first power regulator 490 again.) The integrated control unit 500 may control a box in which an operator may give various control commands. 530 and a support 520 and a support base 510 for supporting the control panel box 530 from the ground. Such an external side of the control panel box 530 is provided with a plurality of buttons or a keypad for inputting a control command, and the driving state of the input control command or the surface inspection apparatus 100, for example, a slab 10. Display means for outputting an inverted state or a rotated state. In addition, various connection ports that can be connected to means such as an external computer or a printer are provided.

Hereinafter, a surface inspection method according to an embodiment of the present invention using the aforementioned surface inspection apparatus (see FIGS. 1 to 4) will be described.

5 is a flowchart illustrating a surface inspection method according to an exemplary embodiment of the present invention, and FIGS. 6 to 8 are views illustrating a driving state of the surface inspection apparatus according to the surface inspection method illustrated in FIG. 5.

5 to 8, the surface inspection method according to an exemplary embodiment of the present invention includes the steps of placing the cast steel at a measurement reference position on the pair of inverting plates (S110) and rotating the cast steel in parallel with the ground. Measuring the surface of the cast (S120), and inverting the cast so that the surface of the cast is not measured (S130), and rotates the cast in the inverted state in parallel to the ground surface of the cast It includes the step of measuring (S140) and the step of integrating the data measured on the surface of the cast piece to the outside (S150).

First, the step (S110) of seating the cast on a reference position on the pair of inverting plate is one of the inverting plate (one of the pair of inverting plate 440, 440 '(see Figs. 1 to 4) sharing a horizontal axis of rotation ( Step (S112; see Fig. 6 (a)) and the other reverse plate 440 'of the pair of reverse plates (440, 440') and the transfer of the cast through the conveying means such as a magnetic chuck and a crane on the 440 Rotate in a vertical state (a state perpendicular to the ground) and horizontally move the cast steel placed on the reverse plate 440 on one side so that one side of the cast steel is in close contact with the reverse plate 440 'of the other side. Step S114 (see Fig. 6 (b)) and when the horizontal movement of the cast piece is completed, rotating the reverse plate 440 'of the other side which is vertically set in a horizontal state with respect to the ground, that is, returning it to its original position (S116; 7 (c)). Here, a contact sensor (not shown) or a distance sensor (not shown) may be provided on one side of the inverting plates 440 and 440 'in order to easily confirm that the slab is in close contact with the inverting plate 440' of the other side standing vertically. Can be. Such a contact sensor or a distance sensor may not only detect a contact state between the reverse plates 440 and 440 'and the slab, but also detect a rotation state of the reverse plates 440 and 440'.

The cast steel, which is the object of surface inspection, is transferred to the reverse plate by a conveying means such as a magnetic chuck and a crane provided outside the surface inspection apparatus. In this case, since the cast may not be placed at the exact measurement reference position on the inverting plate, the steps S112 to S116 as described above are performed after the casting of the cast to align the cast at the measurement reference position which is a reference when measuring. Here, the cast steel conveyed through a conveying means such as a magnetic chuck and a crane is not placed across the upper surface of the pair of inverting plates, but only on the upper surface of any one of the pair of inverting plates.

Thereafter, the slab is rotated in parallel to the ground, and the plurality of surfaces of the slab, that is, the surfaces of the slab facing the slab measuring unit provided on one side of the slab by the rotation are photographed by the slab measuring unit. That is, the slab is surface measured (see S120, Fig. 7 (c)).

Since the lower surface and the upper surface of the slab measured while rotating the slab parallel to the ground as described above, the slab is inverted so that the lower and upper surfaces of the slab face the slab measuring unit (S130). Reversal step (S130) of the slab according to the present embodiment is a step (S132; see Fig. 7 (d)) in the vertical state so that the inverting plate 440 'of the other side is in close contact with one side of the slab, and the lower part of the slab Rotating the inverting plate 440 on one side supporting the surface in a vertical state and rotating the inverting plate 440 'on the other side in close contact with one side of the cast steel in a horizontal state (S134; see FIG. 8 (e)). And rotating the inverting plate 440 on one side in a vertical state from the slab inverted by the rotation of the inverting plates 440 and 440 'on one side and the other side (S136; see FIG. 8 (f)). Include. Here, in the step (S134) of rotating the inverting plate 440 on one side in a vertical state and rotating the inverting plate 440 'on the other side in a horizontal state, the pair of inverting plates 440 and 440' are in the same direction. As such, the reason for rotating the pair of inverting plates 440 and 440 'when the inverting plate is inverted is that the inverting plate 440' on the other side when the inclining plate is inverted by the inverting plate 440 on one side. This is to support the inclination of the cast steel and to invert the cast stably. In addition, in the process of inverting the slab, the slab rotated by the pair of inverting plates 440 and 440 'forming a vertical state maintains a state aligned at the measurement reference position even after inversion.

In this embodiment, in order to rotate the reverse plate is provided with a semi-circular gear on the lower surface of the reverse plate, it is characterized in that it is made in a manner to rotate the semi-circle gear.

On the other hand, the step (S120, S140) of measuring the surface of the cast in the step before and after the step of inverting the cast (S130) is to rotate the cast in 90 ° unit so that the surface (four sides) of the cast facing the slab measuring unit The photographing unit may include photographing a surface of the facing slab to obtain image data and transmitting the obtained image data to the integrated controller. In the present embodiment, when the first cast surface measurement is made in the cast steel measuring unit, the cast steel is then rotated 360 degrees four times in 90 ° increments, and the four sides of the cast steel are sequentially photographed to perform surface measurement. The slab measuring unit is provided with a position detecting sensor that detects a separation distance between the slab and the slab measuring unit as well as an image photographing device such as a camera that can photograph the surface of the slab. In addition, a wired or wireless data transmission means for transmitting the data photographed by the image photographing apparatus to the integrated control unit is provided.

On the other hand, integrating and outputting the data measured on the surface of the cast steel to the outside (S150) is the step of converting and integrating the image data obtained on the surface of the cast steel before and after inversion so as to have the same measurement reference position and the same scale, integrated And outputting the image data to the outside in a graph manner using a three-dimensional shape or color. Image data obtained by measuring a plurality of surfaces of the cast steel is different from the measurement reference position and scale according to the distance before and after the reversal state and the distance from the slab measuring unit, so that the image data obtained by measuring the surface of the cast steel can be compared and The transformation is made for analysis.

In addition, in the process of outputting the integrated image data to the outside after conversion, it may be output using a display device built in the integrated control unit. The integrated image data can be output in the graph method used.

As described above, when the surface inspection is completed, the cast steel is lifted from the surface inspection apparatus using a conveying means such as a magnetic chuck and a crane, and transported and stored to the cast storage place.

As described above, according to the surface inspection apparatus and the surface inspection method using the same according to the embodiments of the present invention, it is possible to automatically reverse and rotate the cast steel as a heavy object to continuously measure the surface of the cast steel, thereby The working time of the surface inspection process can be shortened.

In addition, it is possible to stably position the cast steel irrespective of the operator's skill, it is possible to prevent the cast iron damage or industrial accidents caused by unexpected causes.

In addition, a plurality of surfaces of the cast steel are automatically measured continuously, and the position at which the reference is measured can be accurately known, so that the reliability of data obtained by measuring the surface of the cast steel can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, it will be apparent to those skilled in the art that the present invention may be variously modified and modified without departing from the technical spirit of the following claims.

100: surface inspection device 200, 300: cast rotating part
210: rotating frame 230: second drive motor
240: driving force regulator 310: surface plate
320: vertical axis of rotation 400: cast seat
410: rotating plate 420: reverse plate rotating table
430: reverse plate support 422: horizontal rotation axis
440, 440 ': Reverse plate 442, 442': Rubber pad
450, 450 ': Semi-circle gear 460, 460': First drive motor
470, 470 ': reduction gear 500: integrated control unit
600: cast steel measuring unit

Claims (16)

A slab seating portion provided with a reverse plate which rotates up and down, and which inverts the slab seated on the reverse plate;
A slab rotating part for rotating the slab seating part in parallel with the ground;
Slab measuring unit for measuring the surface of the cast in one region of the cast; And
An integrated control unit controlling driving of the slab seating unit, the slab rotating unit, and the slab measuring unit, and integrating data measured by the slab measuring unit;
Surface inspection apparatus comprising a. The method according to claim 1,
The cast steel seating portion,
A rotating plate horizontally connected to an upper portion of the slab rotating part;
A pair of inverted plate swivels that are erected vertically on an upper surface of the rotating plate to form a horizontal axis of rotation, and wherein the pair of inverted plates are coupled to rotate;
A pair of inverting plate supports standing vertically on an upper surface of the rotating plate to prevent sagging of the pair of inverting plates;
Inverting plate driving means for individually rotating the pair of inverting plates on the horizontal axis of rotation;
Surface inspection apparatus comprising a. The method according to claim 2,
The reverse plate driving means,
A semi-circle gear coupled to the bottom surface of the inverting plate;
A first driving motor supplying a driving force to rotate the inverting plate;
A reduction gear transmitting the driving force of the first driving motor to the semi-circle gear; And
A first power controller configured to control a power supply of the first driving motor in response to a driving command of the integrated controller;
Surface inspection apparatus comprising a. The method according to claim 1,
Surface inspection apparatus that the rubber pad is attached to the upper surface of the reverse plate. The method according to any one of claims 1 to 4,
The slab rotating unit,
A rotating frame providing an empty interior space;
A surface plate having a vertical axis of rotation penetrating the upper portion of the rotating part frame and for seating the cast steel seat on an upper surface thereof;
Plate driving means for rotating the table through the vertical axis of rotation in the internal space;
Surface inspection apparatus comprising a. The method according to claim 5,
And a through hole through which a power line for supplying power to the slab seating portion and a signal line for driving control of the slab seating portion pass upward and downward in the vertical rotation shaft and the surface plate. The method according to claim 5,
The surface drive means,
A second driving motor which supplies a driving force for rotating the surface plate;
A driving force controller for controlling and transmitting a driving force of the second driving motor to the vertical rotation shaft;
A second power controller configured to control a power supply of the second driving motor and the driving force regulator in response to a driving command of the integrated controller;
Surface inspection apparatus comprising a. The method of claim 7,
The driving force regulator includes a clutch and a reducer. The method according to claim 5,
Ventilation opening is formed on one side of the rotating unit frame, a plurality of height-adjustable moving wheels and a plurality of seating support is coupled to the lower surface of the rotating unit frame. The method according to claim 1,
The slab measuring unit,
Surface inspection apparatus including an imaging device for measuring the plurality of surfaces of the cast steel as an image. Seating the cast steel;
Measuring the surface of the slab by rotating the slab in parallel with the ground;
Inverting the cast steel;
Measuring the surface of the slab by rotating the inverted slab in parallel with the ground; And
Integrating the measured data on the surface of the cast steel and outputting the integrated data;
Surface inspection method comprising a. The method of claim 11,
Seating the cast steel,
Transferring the slabs onto one of the inverting plates in a pair of inverting plates sharing a horizontal axis of rotation;
Rotating the inverting plate of the other side in a vertical state in the pair of inverting plates;
Horizontally moving the slab on the inversion plate of the one side such that one side of the slab is in close contact with the inversion plate of the other side; And
Rotating the other inverting plate in a horizontal state;
Surface inspection method comprising a. The method of claim 12,
Inverting the cast steel,
Rotating the reverse plate on the other side in a vertical state so as to be in close contact with one side of the cast steel;
Rotating the inverting plate on one side supporting the lower surface of the cast piece in a vertical state and rotating the inverting plate on the other side in close contact with one side of the cast piece in a horizontal state;
Rotating the inversion plate of the one side from the inverted cast piece in a horizontal state;
Surface inspection method comprising a. The method according to any one of claims 11 to 13,
Rotating the reverse plate,
And a method of rotating the semi-circle gear coupled to the lower surface of the inverting plate. The method of claim 11,
Measuring the surface of the cast steel,
Rotating the slab by 90 ° so that the surface of the slab faces the slab measuring unit;
Photographing a surface of the slab facing the slab measuring unit to obtain image data;
Transmitting the image data to an integrated control unit;
Surface inspection method comprising a. The method according to claim 15,
Integrating the measured data on the surface of the cast and output to the outside,
Converting the image data transmitted to the integrated control unit into the same measurement reference position and the same scale and integrating the same;
Outputting the integrated image data to the outside in a graphical manner using a three-dimensional shape or color;
Surface inspection method comprising a.

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