JP2013119102A - Steel material maintenance support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel material maintenance support device capable of efficiently repairing not only a surface flaw but also an internal flaw located under the surface when an operator performs manual maintenance of a steel material.SOLUTION: The steel material maintenance support device 100 is used in a maintenance process for repairing the steel material that has gone through a surface flaw inspection process for inspecting the surface flaw, and an internal flaw inspection process for inspecting the internal flaw. A maintenance instruction management module 109 simultaneously displays, on a display part 110, both positions of the surface flaw and internal flaw, both of which are detected on a three-dimensional image of the steel material, based on position information on the surface flaw of the steel material detected in the surface flaw inspection process and position information on the internal flaw of the steel material detected in the internal flaw inspection process.

Description

  The present invention relates to a steel material maintenance support device that enables an operator to efficiently and accurately care not only a surface flaw but also an internal flaw located below the surface when the operator manually cares the steel material.

  In the steel industry, in order to improve the quality of steel materials, “care” is carried out by cutting and removing surface defects generated in the steel material and internal defects located below the surface. At present, in addition to manual care by an operator, there are many cases in which care is performed using an automatic care device. However, since there is a risk that wrinkles may remain after cleaning with an automatic care device alone, even if an automatic care device is used, it is often manually re-manufactured after the care. Thus, in order to improve the quality of steel materials, manual maintenance by operators is currently indispensable, and it is required to perform this manual maintenance efficiently and accurately. .

  As techniques related to the care of steel materials, for example, techniques described in Patent Documents 1 to 3 have been proposed.

  Patent Documents 1 and 2 describe that an automatic care apparatus is used to care for surface flaws generated in steel materials and internal flaws located below the surface. However, with regard to manual care, only the surface flaws are targeted, and no proposal has been made for manually and efficiently caring both wrinkles.

  In Patent Document 3, a single screen is obtained by developing the surface wrinkle position before maintenance on a plane based on the surface wrinkle information captured by the automatic surface flaw inspection in the automatic surface flaw inspection and visual inspection after the maintenance of steel. It is described that it is displayed graphically. Even if the technique described in Patent Document 3 is considered to be diverted to the care process, the display target is only surface flaws. It is not possible to manually and efficiently care for both of the internal scissors located.

JP 2008-149340 A JP 2008-188637 A JP 2005-164511 A

  The present invention has been made in order to solve the above-described problems of the prior art. When an operator manually cleans steel, not only the surface defects but also the internal defects located below the surface are efficiently used. It is an object of the present invention to provide a steel material maintenance support device that can be maintained with high accuracy.

  In order to solve the above-mentioned problems, the present invention is used in a surface flaw inspection process for inspecting surface flaws and a care process for cleaning steel material that has undergone an internal flaw inspection process for inspecting internal flaws, and is detected in the surface flaw inspection process. Based on the position information of the surface flaw of the steel material and the position information of the inner flaw of the steel material detected in the inner flaw inspection step, the positions of both the detected surface flaw and the inner flaw on the three-dimensional image of the steel material. Provided is a steel material maintenance support device characterized by displaying simultaneously.

  According to the steel material care support apparatus according to the present invention, the position of the surface defect detected in the surface defect inspection process and the position of the internal defect detected in the inner defect inspection process are simultaneously displayed on the three-dimensional image of the steel material. That is, not only the position of the surface defects but also the position of the internal defects is displayed, and furthermore, since it is displayed on the three-dimensional image of the steel material, it is easy to intuitively grasp the positions of both defects. Therefore, if the operator visually observes this display, it can be expected that both the surface wrinkles and the internal wrinkles located below the surface can be manually and efficiently cared for with high accuracy.

  Preferably, the steel material care support device according to the present invention determines whether or not the internal bar can be cleaned based on the detected position information of the internal bar and can identify whether or not the internal bar can be maintained. The position of the internal ridge is displayed on the screen.

  According to such a preferable configuration, it is determined based on position information of the internal rod whether or not the internal rod is careable. Specifically, for example, by comparing the distance (depth) from the nearest steel surface of the internal rod with a predetermined reference value, it is determined whether or not the internal rod can be maintained. And according to the said preferable structure, the position of this internal wrinkle is displayed so that the possibility of care of an internal wrinkle can be identified (for example, color-coded according to the availability of care). If the operator visually observes this display, the internal wrinkles that can be cleaned can be easily grasped, and therefore, the maintenance can be performed more efficiently.

  Preferably, the steel material care support device according to the present invention can be grouped for each cage that can be simultaneously maintained based on the detected position information of the surface defects and the internal defects, and can identify whether they belong to the same group. So that the position of the surface flaw and the inner flaw is displayed.

  According to such a preferable configuration, the ridges are grouped according to the ridges that can be simultaneously maintained based on the position information of the surface ridges and the internal ridges. Specifically, for example, the position of the internal rod is projected to the nearest position on the steel surface. Next, the distance between the surface flaws and the projected inner flaws on the steel surface is compared with a predetermined reference value. If the mutual distance is shorter than the reference value, they belong to the same group and are longer than the reference value. For example, grouping is performed as belonging to another group. And according to the said preferable structure, the position of a surface flaw and an internal flaw is displayed so that it can identify whether it belongs to the same group (for example, the curve surrounding the wrinkles which belong to the same group is displayed. , The inside of the curve is filled). If the operator visually observes this display, it is possible to easily grasp the wrinkles that can be cleaned at the same time, so that it can be more efficiently maintained.

  Preferably, the steel material care support device according to the present invention determines a necessary care depth, length, and width based on the detected position information of the surface flaw and the inner flaw, and positions of the surface flaw and the inner flaw. Are displayed together with the values of the determined maintenance depth, length and width.

  According to such a preferable configuration, necessary maintenance depth, length, and width are determined based on the position information of the surface defects and the internal defects. Specifically, the required care depth of the internal rod is determined based on, for example, the distance from the nearest steel surface of the internal rod. The necessary care depth of the surface flaw is, for example, the minimum care depth (minimum cutting depth) of the care equipment used in the care process. And according to the said preferable structure, the position of the surface wrinkles and the inner surface wrinkles is displayed with the numerical value of the determined care depth, length, and width. If the operator visually observes this display, it can be quantitatively grasped how much care is required, so that the maintenance can be performed with higher accuracy.

  Preferably, the steel material care support apparatus according to the present invention displays position information of a care device used in the care process on the three-dimensional image of the steel material.

  According to such a preferable configuration, the position information of the care device is displayed on the three-dimensional image of the steel material. Therefore, if the operator visually observes this display, it can be maintained with higher accuracy.

  When the steel material is manufactured through a processing step of processing a material before the surface flaw inspection step and the internal flaw inspection step, the steel material care support device according to the present invention is preferably configured to detect the detected surface flaw. And the position of the surface flaw and the inner flaw on the stereoscopic image of the material based on the position information of the inner flaw.

  According to such a preferable configuration, the positions of the surface defects and the inner surface defects are displayed on the three-dimensional image of the material before the steel material processing step. It is possible to estimate the factors.

  According to the present invention, when the operator manually cleans the steel material, it is possible to efficiently and accurately clean not only the surface defects but also the internal defects located below the surface. As a result, it can be expected that the quality of the steel material is improved, and the yield of the steel material is improved and complaints about the quality are suppressed.

FIG. 1 is a block diagram showing a schematic configuration of a steel material care support apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart for explaining a display procedure such as a heel position in the care support apparatus shown in FIG. FIG. 3 is an explanatory view for explaining a method for determining whether or not to clean the internal bag in the care support apparatus shown in FIG. FIG. 4 is a flowchart showing a procedure for grouping surface wrinkles and internal wrinkles in the care support device shown in FIG. FIG. 5 is an explanatory diagram for explaining a method of assigning the inspection surface classification to the internal bag in the grouping procedure shown in FIG. FIG. 6 is a diagram illustrating an example of an image displayed on the display unit of the care support apparatus illustrated in FIG. 1. FIG. 7 is a diagram illustrating another example of an image displayed on the display unit of the care support apparatus illustrated in FIG. 1. FIG. 8 is a diagram illustrating another example of an image displayed on the display unit of the care support apparatus illustrated in FIG. 1. FIG. 9 is a diagram illustrating another example of an image displayed on the display unit of the care support apparatus illustrated in FIG. 1. FIG. 10 is a diagram showing another example of an image displayed on the display unit of the care support apparatus shown in FIG. 1 and an outline of the care work while viewing this image. FIG. 11 is an explanatory view for explaining a method of displaying (mapping) the positions of the surface defects and the inner defects on the three-dimensional image of the material in the care support device shown in FIG.

  Hereinafter, with reference to the attached drawings as appropriate, a steel material care support device according to an embodiment of the present invention is a steel material having a rectangular cross section, and a processing step (cutting step, part) for processing a material (slab) A case where a surface flaw inspection process, an internal flaw inspection process, and a care process are performed on a steel piece manufactured through a lump rolling process and a cutting process will be described as an example.

FIG. 1 is a block diagram showing a schematic configuration of a steel material care support apparatus according to an embodiment of the present invention.
A steel material support device (hereinafter referred to as a “care device”) according to the present embodiment is arranged in a steel material (steel piece) care process. As shown in FIG. 1, the care support device 100 is used for the surface flaw inspection apparatus 1 arranged in the surface flaw inspection process that is an upper process than the care process and the internal flaw inspection process that is also an upper process than the care process. It is electrically connected to the internal wrinkle inspection device 2 arranged and the care device 3 arranged in the care process. The care support device 100 includes a surface wrinkle database 101, an internal flaw database 102, a material shape database 103, a steel material shape database 104, a care equipment capability database 105, an internal flaw care reference database 106, and a care plan database. 107, a neighborhood definition database 108, a maintenance instruction management module 109, and a display unit 110.

  The surface flaw inspection apparatus 1 is an apparatus that inspects flaws (surface flaws) distributed on the surface of a steel material (steel piece), and visualizes and quantifies the occurrence state of surface flaws. Specifically, a magnetic particle flaw detector is used for the surface defect inspection apparatus 1 of the present embodiment.

  The internal flaw inspection apparatus 2 is an apparatus that inspects flaws (internal flaws) distributed inside a steel material (steel piece), and visualizes and quantifies the occurrence state of the internal flaws. Specifically, an ultrasonic flaw detector is used for the internal flaw inspection apparatus 2 of the present embodiment.

  The care device 3 is a device that cuts a surface wrinkle of a steel material (steel piece) and an internal flaw located below the surface with a grinder or the like. The care device 3 also includes a roller for rotating the steel material in the circumferential direction so that the entire peripheral surface of the steel material can be cut. The position information (grinder position information) of the care device 3 relative to the steel material and the rotation position information of the steel material are transmitted from the care device 3 to the care instruction management module 109 of the care support device 100.

  The surface flaw database 101 is a database that accumulates position information of surface flaws for each steel material (steel piece) detected by the surface flaw inspection apparatus 1.

  The internal rod database 102 is a database that accumulates the position information of the internal rod for each steel material (steel piece) detected by the internal rod inspection apparatus 2.

  The material shape database 103 is a database that stores the shape of a material (slab) before processing into a steel material (steel piece) and the positional relationship between the materials.

  The steel material shape database 104 is a database that stores the shape of steel materials (steel pieces), the positional relationship between steel materials, and the positional relationship between steel materials and materials.

  The care device capability database 105 is a database that stores the minimum care (cutting) depth, the minimum care (cutting) length, and the minimum care (cutting) width that can be performed by the care device 3.

  The internal wrinkle care criteria database 106 is a database that stores criteria used to determine whether or not internal wrinkles can be cared for.

  The maintenance plan database 107 is a database that holds a maintenance plan for steel materials (steel pieces). For the steel maintenance plan, steel no. The shape and care grade of each steel material (an index indicating the upper limit of the depth that can be cut) are included.

  The neighborhood definition database 108 is used for grouping the wrinkles that can be maintained at the same time (those that are located in the vicinity of each other as the same group) (threshold value for determining whether or not they are located in the neighborhood). Is a database that stores

  The maintenance instruction management module 109 is a management module that displays the positions of surface wrinkles and internal wrinkles on the display unit 110 based on the information from each of the databases 101 to 108 described above.

  The display unit 110 is a monitor that displays the positions of surface defects and internal defects on a three-dimensional image of a steel material (steel piece).

  A procedure for displaying the position of the surface wrinkles and the internal wrinkles by the maintenance support device 100 having the above schematic configuration will be described below.

FIG. 2 is a flowchart for explaining a display procedure such as a heel position in the care support device 100.
As shown in FIG. 2, the display procedure in the care support device 100 includes a steel material information acquisition step (S1 in FIG. 2), an internal flaw maintenance availability determination step (S2 in FIG. 2), and a surface flaw / inner flaw group. A dividing step (S3 in FIG. 2), a care depth / length / width determining step (S4 in FIG. 2), and a display step (S5 in FIG. 2) are included. Hereinafter, each step shown in FIG. 2 will be described in order.

<Steel Information Acquisition Step (S1 in FIG. 2)>
In this step, the maintenance instruction management module 109 acquires information associated with the steel material (steel material No.) from various databases.
First, as shown in Table 1 below, the maintenance instruction management module 109 receives each steel material No. from the maintenance plan database 107. Get the care grade and steel shape (length, width, height) associated with.

Next, the maintenance instruction management module 109 uses the designated steel material No. As a search key, from the surface defect database 101 and the internal defect database 102, the specified steel material No. The position information of the surface wrinkles and the inner wrinkles associated with is acquired.
As shown in Table 2 below, the information acquired from the surface flaw database 101 includes the designated steel material No. The position information (XYZ coordinates) of the surface defect and the inspection surface classification (surface on which the surface defect is detected) associated with
The inspection surface is divided into four sections: top, bottom, left, and right, with the top facing the ceiling during continuous casting and the bottom positioned at the bottom during continuous casting. The left side surface means a surface located on the left side with respect to the casting traveling direction during continuous casting, and the right side surface means the surface located on the right side with respect to the casting traveling direction during continuous casting. The X coordinate means the coordinate in the width direction of the steel material, the Y coordinate means the coordinate in the height direction of the steel material, and the Z coordinate means the coordinate in the longitudinal direction of the steel material. The starting point of the X-axis and the Y-axis is the intersection of the left side surface and the bottom surface, and the starting point of the Z-axis is the entrance end surface when the steel material is inserted into the surface flaw inspection apparatus 1. As for the internal flaw, the entry side end surface when the steel material is inserted into the internal flaw inspection device 2 is the same as that of the surface flaw, and the meaning of the XYZ coordinates is the same as that of the surface flaw.

As shown in Table 3 below, the information acquired from the internal defect database 102 is the designated steel material No. Is the position information (XYZ coordinates) of the inner eyelid associated with.

  As described above, the maintenance instruction management module 109 acquires information associated with the steel material (steel material No.) from various databases.

<Internal scissor care determination step (S2 in FIG. 2)>
In this step, the maintenance instruction management module 109 can maintain the internal defects based on the steel material information acquired in the above-described step (S1 in FIG. 2) and the criteria stored in the internal defect maintenance reference database 106. It is determined whether or not.
Table 4 below shows the criteria stored in the internal heel care criteria database 106. As shown in Table 4, the internal wrinkle care reference database 106 stores an upper limit value of the care (cutting) depth corresponding to each care grade, and this indicates whether or not the internal flaw can be cared for. It is used as a reference when judging.

  Specifically, the care instruction management module 109 obtains an upper limit value of the care depth corresponding to the care grade of the steel material obtained in the above-described step (S1 in FIG. 2) from the internal iron care reference database 106. Then, the care instruction management module 109 calculates the distance (depth) from the surface of the nearest steel material of the internal rod from the position of the internal rod present in the steel material acquired in the above-described step (S1 in FIG. 2). It is determined whether or not maintenance is possible depending on whether or not the depth is equal to or lower than the upper limit of the maintenance depth corresponding to the grade of the steel material. More specifically, it is as follows.

FIG. 3 is an explanatory diagram for explaining a method for determining whether or not an internal bag can be maintained.
As shown in FIG. 3, for example, when the cross-sectional shape of the steel material is the width L1 and the height L2, and the cross-sectional coordinates (X, Y) = (x1, y1) of the internal rod, the maintenance instruction management module 109 is The depth from each surface of the inner ridge is calculated as follows.
(1) Depth from left side = x1
(2) Depth from bottom = y1
(3) Depth from right side = L1-x1
(4) Depth from the top = L2-y1

  The maintenance instruction management module 109 compares the depth from each surface of the internal ridge calculated as described above with the upper limit value of the maintenance depth corresponding to the maintenance grade of the steel material. When the upper limit is exceeded (in the case shown in FIG. 3), it is determined that the internal bag cannot be maintained. On the other hand, when the depth from any surface is equal to or less than the upper limit value, it is determined that the internal flaw can be maintained. By carrying out the above determination on all internal scissors generated in the steel material, it is possible to distinguish between internal scissors that can be maintained and internal scissors that cannot be maintained.

<Steps for grouping surface and internal defects (S3 in FIG. 2)>
In this step, the maintenance instruction management module 109 can perform maintenance simultaneously based on the steel material information acquired in the above-described step (S1 in FIG. 2) and the reference (threshold value) stored in the neighborhood definition database 108. Perform grouping for each basket. Specifically, the maintenance instruction management module 109 performs grouping according to the flowchart shown in FIG.

  The maintenance instruction management module 109 first assigns an inspection surface classification to the internal rod based on the position of the internal rod present in the steel material obtained in the above-described step (S1 in FIG. 2) (S30 in FIG. 4). Specifically, the position of the internal rod is projected to the position on the inspection surface section of the closest steel material (see FIG. 5). At this time, in the present embodiment, since it is determined in the above-described step (S2 in FIG. 2) whether or not the internal scissors can be maintained, the above projection is performed only for the internal scissors determined to be cleanable (see FIG. 5). ). As a result, all the surface defects present in the steel material and the internal defects that can be maintained are located on any of the inspection surface sections.

  Next, the maintenance instruction management module 109 sequentially designates inspection surface sections (target inspection surface sections) to be subjected to bag grouping among the four inspection surface sections (S31 in FIG. 4). The maintenance instruction management module 109 designates a cocoon (疵 b1) which is a grouping reference among the cocoons located on the target inspection surface section (S32 in FIG. 4). This designation is made in group No. Regardless of whether or not is assigned, the steps are performed in order from the side closest to the starting point of the Z-axis. Then, the maintenance instruction management module 109 assigns the group No. to 疵 b1. Is not assigned, a new group No. is assigned to this 疵 b1. Are assigned and assigned (S33 in FIG. 4).

Next, the care instruction management module 109 designates 疵 (疵 b2) to be determined as to whether or not it belongs to the same group as 疵 b1 (S34 in FIG. 4). This designation is a heel located on the same inspection surface section as 疵 b1, and the same Z-axis coordinate as 疵 b1 or a larger Z-axis coordinate than 疵 b1, and a distance in the Z-axis direction with respect to 疵 b1 Is performed for a bag whose length is equal to or less than a length threshold described later. Then, the care instruction management module 109 determines whether or not the distance between 疵 b1 and 疵 b2 is equal to or less than a reference value (S35 in FIG. 4). If it is equal to or less than the reference value, 疵 b2 is the same as 疵 b1 Shall belong to the group. That is, the group No. Is assigned, the same group number as 疵 b1 is assigned to 疵 b2. Is assigned (S36 in FIG. 4). However, the group No. Is assigned, the group numbers of all the kites existing in the same group as the kit b1.疵 b2 group No. (S36 in FIG. 4). Specifically, as shown in Table 5 below, the neighborhood definition database 108 includes criteria (width threshold value, length threshold value) for determining whether or not 疵 b2 is located in the vicinity of 疵 b1. It is remembered.

Then, the care instruction management module 109 assumes that the XYZ coordinates of 疵 b1 are (x1, y1, z1) and the XYZ coordinates of 疵 b2 are (x2, y2, z2), and the following equations (1) and ( When both of the conditions 2) are satisfied, it is determined that 疵 b2 is located in the vicinity of １b1, and 属 す る b2 belongs to the same group as 疵 b1.


When the target inspection surface section in which す る b1 and b2 are located is the top surface or the bottom surface, when both the first inequality of equation (1) and equation (2) are satisfied, 疵 b2 is It is determined that it is located in the vicinity of b1. In addition, when the attention inspection section where 疵 b1 and b2 are located is the left side surface or the right side surface, when both the second inequality of equation (1) and equation (2) are satisfied, 疵 b2 is It is determined that it is located in the vicinity of b1.

  The maintenance instruction management module 109 repeats the above-described procedure for all the eyelids b2 located on the target inspection surface section ("No" in S37 in FIG. 4, S34). When the determination for all the eyelids b2 is completed ("Yes" in S37 in FIG. 4), the eyelids that are located on the target inspection surface section and that have not yet been grouped are designated (updated). Then, the above-described procedure is repeated (“No” in S38 in FIG. 4, S32). When the determination for all the wrinkles b1 is completed, that is, all the wrinkles positioned on the target inspection surface section are grouped (“Yes” in S38 in FIG. 4), the target inspection surface section is set to another one. The inspection surface classification is changed (updated), and the above-described procedure is repeated ("No" in S39 in FIG. 4, S31). The maintenance instruction management module 109 performs the above procedure for all four inspection surface sections (“Yes” in S39 in FIG. 4).

<Determination step of maintenance depth / length / width (S4 in FIG. 2)>
In this step, the care instruction management module 109 performs the minimum care depth and length stored in the steel material information acquired in the above-described step (S1 in FIG. 2) and the care equipment capability database 105 shown in Table 6 below.・ Determine necessary care depth, length and width based on width. In the case of a single surface flaw or a single internal flaw, the required care depth, length, and width are determined for each flaw, and if there are multiple wrinkles in the same group, it is necessary for each group. Care depth, length and width are determined.

Specifically, the required care depth / length / width is determined by the care instruction management module 109 as follows.
(1) In the case of a single surface flaw (no other surface flaw or internal flaw exists in the same group) The minimum care depth / length / width is the required care depth / length / width. The
(2) In the case of a single internal flaw (no other surface flaw or internal flaw exists in the same group) The minimum care length / width is the required care length / width. In addition, the distance (depth) from the inspection surface section closest to the internal scissors is the necessary maintenance depth. However, when the distance from the closest inspection surface section is smaller than the minimum maintenance depth, the minimum maintenance depth is set as the necessary maintenance depth.
(3) When only a plurality of surface flaws belong to the same group The minimum care depth is the necessary care depth. Further, the longest distance in the Z-axis direction between the surface flaws belonging to the same group is a necessary maintenance length. However, when the longest distance in the Z-axis direction is smaller than the minimum maintenance length, the minimum maintenance length is set as a necessary maintenance length. Further, the longest distance in the X-axis direction or the longest distance in the Y-axis direction between the surface defects belonging to the same group is determined as a necessary maintenance width. However, when the longest distance in the X-axis direction or the longest distance in the Y-axis direction is smaller than the minimum care width, the minimum care width is set as a necessary care width.
(4) When only a plurality of internal scissors belong to the same group The longest distance (maximum depth) from the inspection surface section closest to the internal scissors is the necessary maintenance depth. However, when the longest distance (maximum depth) from the inspection surface section is smaller than the minimum care depth, the minimum care depth is set as the necessary care depth. In addition, the longest distance in the Z-axis direction between the inner rods belonging to the same group is the necessary maintenance length. However, when the longest distance in the Z-axis direction is smaller than the minimum maintenance length, the minimum maintenance length is set as a necessary maintenance length. Further, the longest distance in the X-axis direction or the longest distance in the Y-axis direction between the inner rods belonging to the same group is determined as a necessary maintenance width. However, when the longest distance in the X-axis direction or the longest distance in the Y-axis direction is smaller than the minimum care width, the minimum care width is set as a necessary care width.
(5) When surface flaws and internal flaws are mixed in the same group The longest distance (maximum depth) from the inspection surface section closest to the inner flaw is the required maintenance depth. However, when the longest distance (maximum depth) from the inspection surface section is smaller than the minimum care depth, the minimum care depth is set as the necessary care depth. The longest distance in the Z-axis direction between the ridges belonging to the same group is the necessary maintenance length. However, when the longest distance in the Z-axis direction is smaller than the minimum maintenance length, the minimum maintenance length is set as a necessary maintenance length. Further, the longest distance in the X-axis direction or the longest distance in the Y-axis direction between the ridges belonging to the same group is determined as a necessary maintenance width. However, when the longest distance in the X-axis direction or the longest distance in the Y-axis direction is smaller than the minimum care width, the minimum care width is set as a necessary care width.

<Display step (S5 in FIG. 2)>
In this step, the care instruction management module 109 causes the display unit 110 to display the positions of the surface defects and the internal defects based on the information acquired / calculated in each step described above.

FIG. 6 is a diagram illustrating an example of an image displayed on the display unit 110. FIG. 6B shows a state in which the image shown in FIG. 6A is rotated by 90 ° in the circumferential direction of the steel material (steel piece).
The image shown in FIG. 6 can be displayed when the maintenance instruction management module 109 executes the above-described steel material information acquisition step (S1 in FIG. 2).
As shown in FIG. 6, on the display unit 110, the positions of both the detected surface defects and internal defects are simultaneously displayed on a three-dimensional image (three-dimensional perspective view) of the steel material (steel piece). In the present embodiment, the surface wrinkles and the inner wrinkles are displayed in different colors so that they can be clearly identified. The image shown in FIG. 6 shows not only the position of the surface defects, but also the position of the internal defects as in the conventional case, and because it is displayed on the three-dimensional image of the steel material, the position of both defects is intuitively grasped. Easy to do. Therefore, if the operator visually observes this display, it can be expected that both the surface wrinkles and the internal wrinkles located below the surface can be manually and efficiently cared for with high accuracy.
In addition, since a blind spot may occur depending on the display direction of the steel material on the display screen of the display unit 110, the display is performed as described above according to the operator's operation or according to the rotational position information of the steel material transmitted from the care device 3. It is preferable to have a function of rotating the direction.

FIG. 7 is a diagram illustrating another example of an image displayed on the display unit 110.
The image shown in FIG. 7 can be displayed by the maintenance instruction management module 109 executing the above-described steel material information acquisition step (S1 in FIG. 2) and internal rod maintenance availability determination step (S2 in FIG. 2). .
As shown in FIG. 7, on the display unit 110, the positions of both the detected surface defects and the internal defects are simultaneously displayed on the stereoscopic image (stereoscopic perspective view) of the steel material (steel piece), and The position of the inner eyelid is displayed so that the availability of care can be identified. Specifically, in the present embodiment, three types of wrinkles are displayed in different colors so that surface wrinkles, internal wrinkles (can be maintained), and internal wrinkles (cannot be maintained) can be clearly identified.
If the operator visually observes the image shown in FIG. 7, the internal wrinkles that can be cared for can be easily grasped, and therefore, it can be maintained more efficiently than when the image shown in FIG. 6 is visually observed.

FIG. 8 is a diagram illustrating another example of an image displayed on the display unit 110.
In the image shown in FIG. 8, the maintenance instruction management module 109 performs the above-described steel material information acquisition step (S1 in FIG. 2), internal flaw maintenance availability determination step (S2 in FIG. 2), and surface flaw / inner flaw grouping. It can be displayed by executing the step (S3 in FIG. 2).
As shown in FIG. 8, the display unit 110 includes a detected surface flaw and an internal part so that it can be identified whether or not they belong to the same group on a three-dimensional image (three-dimensional perspective view) of a steel material (steel piece). Both positions of the heel are displayed at the same time. Specifically, in this embodiment, when there are a plurality of wrinkles (surface wrinkles or internal wrinkles) belonging to the same group, a curve surrounding these wrinkles is displayed, and the inside of the curve is filled.
If the operator visually observes the image shown in FIG. 8, it is possible to easily grasp the wrinkles that can be maintained at the same time. Therefore, the operator can care more efficiently than the case where the image shown in FIG. 6 is visually observed.

FIG. 9 is a diagram illustrating another example of an image displayed on the display unit 110.
In the image shown in FIG. 9, the maintenance instruction management module 109 performs the above-described steel material information acquisition step (S1 in FIG. 2), internal flaw maintenance availability determination step (S2 in FIG. 2), and surface flaw / inner flaw grouping. It can be displayed by executing the step (S3 in FIG. 2) and the maintenance depth / length / width determining step (S4 in FIG. 2).
As shown in FIG. 9, on the display unit 110, on the three-dimensional image (three-dimensional perspective view) of the steel material (steel piece), the positions of both the detected surface flaw and the inner flaw are necessary care depth and length.・ Displayed with the numerical value of the width. In the case of a single surface flaw or a single internal flaw, the required care depth, length, and width are displayed for each flaw. If there are multiple flaws in the same group, the group unit The necessary maintenance depth, length and width are displayed.
If the operator visually observes the image shown in FIG. 9, it can be quantitatively grasped how much care is required, and therefore, the maintenance can be performed with higher accuracy than when the image shown in FIG. 6 is visually observed.

FIG. 10 is a diagram illustrating another example of an image displayed on the display unit 110 and an outline of the maintenance work while viewing the image.
The image displayed on the display unit 110 shown in FIG. 10 is a care device that the care instruction management module 109 executes the above-described steps (S1 to S4 in FIG. 2) and that is transmitted from the care device 3. 3 can be displayed using the position information (grinder position information).
As shown in FIG. 10, on the display unit 110, the position information (main book) of the maintenance device 3 is displayed on the three-dimensional image (three-dimensional perspective view) of the steel material (steel piece) along with the detected positions of both the surface flaw and the inner flaw. In the embodiment, position information about the longitudinal direction of the steel material is displayed. Specifically, in the present embodiment, a position marker indicating the position of the care device 3 is displayed.
Since the position information of the care device 3 is displayed on the three-dimensional image of the steel material on the display unit 110 in FIG. 10, if the operator views this image, it is more than in the case where the image shown in FIG. 6 is viewed. Care can be taken with higher accuracy.

  In addition, in this step, not only the position of the surface defect and the internal defect on the solid image of the steel (steel piece) but also the position of the surface defect and the internal defect on the stereoscopic image of the material (slab). May be. Hereinafter, a method for displaying the positions of the surface defects and the internal defects on the three-dimensional image of the material (slab) will be described.

FIG. 11 is an explanatory diagram for explaining a method of displaying (mapping) the positions of the surface defects and the inner defects on the three-dimensional image of the material.
As shown in FIG. 11, each steel material (steel slabs A, B, C, D) cuts a raw material (slab) manufactured by a continuous casting facility, and slabs after slab (slabs a, b, c) and the like, and then further cut. Under the conditions shown in FIG. 11, the material shape database 103 stores the contents shown in Table 7 below, for example.

The steel material shape database 104 stores the contents shown in Table 8 below, for example.

Based on the steel material information acquired in the above-described step (S1 in FIG. 2) and the information stored in the material shape database 103 and the steel shape database 104, the maintenance instruction management module 109, for example, The operation represented by

Accordingly, as shown in FIG. 11, the coordinates (X ₁ , Y ₁ , Z ₁ ) of the ridge A expressed in the XYZ coordinate system are in the xyz coordinate system for the material (slab) before being cut by the continuous casting equipment. Is mapped to the coordinates (x ₁ , y ₁ , z ₁ ) of 疵 A represented by If the above procedure is performed on all the defects detected for the target steel (steel piece), the positions of the surface defects and internal defects of the steel are displayed (mapped) on the three-dimensional image of the material (before cutting). It is possible.

  As described above, if the positions of the surface defects and the inner surface defects are displayed on the three-dimensional image of the material before the steel material processing step, the operator can visually estimate the generation factors of the surface defects and the inner surface defects. It is possible.

DESCRIPTION OF SYMBOLS 1 ... Surface wrinkle inspection apparatus 2 ... Internal flaw inspection apparatus 3 ... Care apparatus 100 ... Care support apparatus 101 ... Surface flaw database 102 ... Internal flaw database 103 ... Material shape database DESCRIPTION OF SYMBOLS 104 ... Steel shape database 105 ... Care machine capability database 106 ... Internal iron care reference database 107 ... Care plan database 108 ... Neighborhood definition database 109 ... Care instruction management module 110 ... Display section

Claims (6)

It is used in a surface care inspection process for inspecting surface defects and a care process for cleaning steel materials that have undergone an internal defect inspection process for inspecting internal defects.
Based on the position information of the surface defect of the steel material detected in the surface defect inspection step and the position information of the inner defect of the steel material detected in the internal defect inspection step, the detected surface defect on the stereoscopic image of the steel material. And a maintenance support device for steel, which simultaneously displays the positions of both the inner rod and the inner rod.   Based on the position information of the detected internal heel, it is determined whether or not the internal heel can be maintained, and the position of the internal heel is displayed so as to identify whether or not the internal heel can be maintained. The steel material maintenance support apparatus according to claim 1.   Based on the detected position information of the surface defects and the inner defects, it is grouped for each defect that can be maintained at the same time, and the positions of the surface defects and the inner defects are displayed so that it can be identified whether or not they belong to the same group. The steel material maintenance support apparatus according to claim 1 or 2, wherein   Based on the detected position information of the surface flaw and the inner flaw, the necessary care depth, length and width are determined, and the positions of the surface flaw and the inner flaw are numerical values of the determined care depth, length and width. The steel material maintenance support apparatus according to any one of claims 1 to 3, characterized by being displayed together.   The steel material maintenance support apparatus according to any one of claims 1 to 4, wherein position information of a care device used in the care process is displayed on the three-dimensional image of the steel material. The steel material is manufactured through a processing step of processing a material before the surface flaw inspection step and the internal flaw inspection step,
6. The steel material according to claim 1, wherein the position of the surface defect and the inner defect is displayed on a three-dimensional image of the material based on the detected position information of the surface defect and the inner defect. Care support device.