JP2017189814A - Steel material machining method and steel material machining system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel material machining method and a steel material machining system in which cutting and notches are formed in a steel material with high precision.SOLUTION: A steel material machining method includes the steps of: creating machining shape drawing data of a steel material; creating NC data for rewriting the drawing data to a laser machining position and a laser machining trajectory of a three-dimensional laser machining device; inputting the NC data to a control section of the three-dimensional laser machining device; forming a pass line PL for linearly irradiating a foundation D, on which pedestals 3 are arranged so that a longitudinal direction of the steel material disposed on the pedestals is parallel to an operational longitudinal direction of the three-dimensional laser machining device, with a laser beam; correcting steel material distortion by pressing and fixing the steel material in parallel with the pass line, by placing the pedestals on the foundation in parallel with the pass line and then using support pressing means having a pressing part for applying pressing force from a support part of one side face of the steel material and the opposite side face; and aligning a laser machining start reference position with a laser machining start reference position of the NC data and then subjecting the distortion-corrected steel material to laser machining.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a steel material processing method and a steel material processing system for improving processing accuracy when cutting a steel material made of metal such as iron or stainless steel using a three-dimensional laser processing apparatus or providing a notch in a steel material. It is.

  The manufactured long metal steel material is often used after being processed to be cut into a desired length or notched into an arbitrary shape. For example, the joining portion of the steel material is formed into an uneven shape, a wavy notch is provided over the entire length of the steel material, or a circular opening is provided at an arbitrary position. Patent Document 1 discloses a three-dimensional laser processing apparatus for three-dimensionally cutting a steel material or providing a notch.

JP 2010-110775 A

  However, a long metal steel material has a problem that its linearity is distorted, such as being bent in an arch shape or partially bent, and manufacturing accuracy is not necessarily high. I can't say that. If the steel material is bent in an arch shape or partially bent, even if laser processing predetermined by automatic control using the three-dimensional laser processing apparatus described in Patent Document 1 is applied to the steel material, There is a case where the laser beam cannot be irradiated at an intended position and the steel material is not appropriately processed. As a result, there are concerns about deterioration in manufacturing accuracy and a decrease in yield. Therefore, there is a demand for development of a technique capable of laser processing a steel material with higher accuracy and a system that enables it.

  Therefore, the present invention aims to solve the above-mentioned problems, and its purpose is to achieve high accuracy even if the steel material is bent in an arch shape or partially bent. It is another object of the present invention to provide a steel material processing method and a steel material processing system capable of laser processing a steel material.

  Therefore, the inventor has eagerly created to find the configuration of the present invention in order to achieve the above object. Although measures were taken in advance to measure the distortion and bending of the shape of the steel material, and measures were taken to move the 3D laser processing device in accordance with the distortion and bending, the control of the 3D laser processing device was extremely difficult. It was difficult and had the problem that productivity fell. Moreover, in order to enable such a configuration, there has been a problem of high cost due to additional purchase of expensive measuring equipment and an increase in the price of the control device of the three-dimensional laser processing apparatus.

  In order to achieve the above object, a first invention is a steel material processing method for processing a steel material using a three-dimensional laser processing apparatus, and a drawing data generation step for generating drawing data relating to a shape for processing the steel material; Based on the created drawing data, an NC data creation process is performed, in which the drawing data is rewritten to NC (numerical control machining) data for setting the laser machining position and the laser machining trajectory of the three-dimensional laser machining apparatus for machining the steel material. NC data input process for inputting the NC data to a control unit that controls the operation of the three-dimensional laser processing apparatus, the longitudinal direction of the steel material arranged on the pedestal using the three-dimensional laser processing apparatus, and the three-dimensional laser processing Form a pass line by irradiating the laser on the base on which the pedestal on which the steel material is placed is placed in a straight line so that the longitudinal direction in which the device operates is parallel A pass line forming step, and a pedestal is installed on the base so as to be parallel to the pass line, and then a support part for supporting one side surface of the steel material arranged on the pedestal, and the supported Steel that corrects distortion of steel by pressing and fixing the steel so that it is parallel to the pass line using a support pressing means that has a pressing part that presses from the side opposite to the side of the steel. A steel material processing method comprising: a distortion correction step; and a laser processing step in which laser processing is performed on a steel material in which distortion is suppressed by matching a reference position of the steel material for starting laser processing with a reference position for starting laser processing in NC data It is.

  Further, the pass line forming step uses a three-dimensional laser processing apparatus so that the longitudinal direction of the steel material disposed on the two or more pedestals is parallel to the longitudinal direction in which the three-dimensional laser processing apparatus operates, and Preferably, along the direction in which the two or more pedestals are installed, it is preferable to form a pass line by irradiating the base on which the two or more pedestals on which the steel materials are arranged with a laser beam in a straight line.

  Further, the support pressing means has a pedestal having a support portion that supports one side surface of the steel material, and the pressing portion that is pressed from the side surface opposite to the side surface of the supported steel material is moved and fixed in an arbitrary direction. It is preferable that it consists of a press fixing member which can do. At this time, the pressing and fixing member is preferably a mechanical arm, a mechanical cylinder, a hydraulic cylinder, or a vise. Furthermore, it is preferable to use a pedestal to support the steel material in the vicinity of the position where the steel material is laser processed. Here, “the vicinity of the position where the steel material is laser-processed” is, for example, a position separated from the position where the laser processing is performed on both sides in the axial direction of the steel material, for example, about 40 mm away from the laser processing position. Say the position.

  Furthermore, when performing the laser processing which provides a polygonal notch with respect to steel materials, it is preferable to perform a laser processing toward the upper direction from the downward direction. For example, when a cutout is provided in a triangular shape, one side of the triangle is laser processed from the lower left side to the upper right side, and then the other side of the triangle is lasered from the lower right side to the upper left side. A notch will be provided by processing.

  Furthermore, when performing laser processing for providing a circular notch on a steel material, it is preferable to perform laser processing so that the end point position of laser processing is located above the circumference.

  In addition, in the case of performing laser processing for providing a circular notch on the steel material, the laser processing start position is a position spaced from the circumference to be cut to the side toward the center position of the circle. Thus, it is preferable to perform laser processing.

  In addition, in the laser processing step, it is preferable to repeat the step of matching the reference position of the steel material for starting laser processing with the reference position for starting laser processing in the NC data at a predetermined steel material interval. Here, the “predetermined steel material interval” herein can be arbitrarily set according to the shape to be laser processed and the interval between repeating units.

  Further, the second invention for achieving the above object includes a three-dimensional laser processing apparatus that includes a laser light source and processes a steel material into an arbitrary shape, and drawing data generation means that generates drawing data relating to the shape of processing the steel material Based on the created drawing data, NC data creating means for rewriting the drawing data into NC data for setting the laser machining position and laser machining trajectory of the three-dimensional laser machining apparatus for machining the steel material, and the created CAD data The NC data input means for input to the control unit for controlling the operation of the three-dimensional laser processing apparatus, the longitudinal direction of the steel material arranged on the pedestal, and the three-dimensional laser processing apparatus operate using the three-dimensional laser processing apparatus Pass line formation that forms a pass line by irradiating the base with a laser beam in a straight line so that the base on which the steel material is placed is parallel to the longitudinal direction A step and a pedestal are installed on the base so as to be parallel to the pass line, and then a support part for supporting one side surface of the steel material arranged on the pedestal, and a side surface of the supported steel material, Is a steel material distortion correction unit that corrects the distortion of the steel material by pressing and fixing the steel material so as to be parallel to the pass line, using a support pressing device having a pressing portion that is pressed from the opposite side surface. And a laser processing means for performing laser processing on the steel whose distortion has been corrected by matching the reference position of the steel material for starting laser processing with the reference position for starting laser processing in NC data.

  Further, the pass line forming means uses a three-dimensional laser processing apparatus to dispose steel materials on two or more pedestals, the longitudinal direction of the steel materials disposed on the two or more pedestals, and the three-dimensional laser processing apparatus operates. The laser beam is irradiated linearly on the base on which the two or more pedestals on which the steel materials are arranged are arranged in a direction parallel to the longitudinal direction of the two or more pedestals. It is preferable to form a pass line.

  Further, the support pressing means has a pedestal having a support portion that supports one side surface of the steel material, and the pressing portion that is pressed from the side surface opposite to the side surface of the supported steel material is moved and fixed in an arbitrary direction. It is preferably made of a pressing and fixing member that can be used.

  Furthermore, the pressing and fixing member is preferably a mechanical arm, a mechanical cylinder, a hydraulic cylinder, or a vise.

  According to the present invention, it is possible to provide a steel material processing method and a steel material processing system capable of laser processing a steel material with high accuracy even if the steel material is bent in an arch shape or partially bent. It becomes.

It is the figure which showed the steel materials processed by a laser. The base line D on which the steel material 2 is arranged is irradiated with a laser beam in a straight line so that the longitudinal direction of the steel material 2 to be arranged is parallel to the longitudinal direction in which the three-dimensional laser processing apparatus operates. It is the top view which showed the state which carried out. The longitudinal direction of the steel material 2 arranged on the two or more pedestals 3 is parallel to the longitudinal direction in which the three-dimensional laser processing apparatus operates, and along the direction in which the two or more pedestals 3 are installed. It is the top view which showed the state which irradiated the laser linearly to the base D which installs the two or more bases 3 with which the steel materials 2 are arrange | positioned, and formed the pass line PL. Two or more pedestals 3 are installed on the base D so as to follow the pass line PL, and then a support portion 5 that supports one side surface of the steel material 2 and a side surface opposite to the side surface of the supported steel material 2 By using the support pressing means provided with the pressing portion 4 that presses the steel material 2, the steel material 2 is pressed and fixed so as to be parallel to the pass line PL, thereby correcting the distortion of the steel material 2 and correcting the distortion. It is the top view which showed the state which gave the laser processing to the made steel material 2. FIG. FIG. 5A is a cross-sectional view of a state (FIG. 4B) in which the position of the steel material 2 is supported (fixed) by the support portion 5 provided on the pedestal 3 and the steel material 2 is pressed and fixed by the pressing portion 4. FIG. 5B is a side view of the steel material 2 shown in FIG. 4B as viewed from the pressing portion 4 side. It is the figure which showed an example which performed laser processing with respect to the round steel material. It is the figure which showed an example which performed laser processing with respect to the square steel material. It is the side view which looked at the steel material 2 pressed and fixed by the press part 4 from the side, Comprising: The relationship between arrangement | positioning of each press part 4 and each reference position Z of the steel material 2 which starts laser processing was shown. FIG. FIG. 9 shows an example of a three-dimensional laser processing apparatus, and shows how the three-dimensional laser processing apparatus measures the reference position z (height) of the steel material 2.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing, by dotted lines, a metal round steel material 1 to be laser processed and the position and shape of the laser processing to be processed. Reference numeral 11 indicates a cutting position for cutting the steel material 1, reference numeral 12 indicates a rectangular notch position provided in the steel material 1, and reference numeral 13 indicates a triangular notch provided in the steel material 1. The reference numeral 14 indicates a groove position provided in the steel material 1, and the reference numeral 15 indicates a circular notch position provided in the steel material 1. The shape to be laser processed is not limited to the example shown in the figure, and can be arbitrarily set to a desired shape. For example, it can be cut into a zigzag shape or a polygonal shape such as a pentagon shape. A notch can also be provided (not shown). Moreover, in this Embodiment shown by FIG. 1, although the round shaped steel material 1 is used, the shape of the steel material 1 is not limited to this, Polygonal steel materials, such as a square, H, It should be noted that shape steel, I-shape steel, angle steel, channel steel, etc. can also be targeted for laser processing.

  In the present invention, when the pass line PL is formed on the base D, the steel material 2 can be directly arranged on the base D as shown in FIG. 2, but the steel material 2 is arranged on the base 3 as shown in FIG. You can also From the viewpoint of enabling the steel material processing in a wide range, it is preferable to use the pedestal 3 as shown in FIG.

FIG. 2 shows a path in which the base D on which the steel material 2 is arranged is irradiated linearly with a laser so that the longitudinal direction of the steel material 2 to be arranged and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel to each other. It is the top view which showed the state in which the line PL was formed.
In the present invention, the pass line PL may be formed so as to be parallel to the longitudinal direction of the steel material 2 to be arranged (FIG. 2A), or may be formed along the longitudinal direction of the steel material 2 to be arranged (FIG. 2B). ).

On the other hand, FIG. 3 shows that the longitudinal direction of the steel material 2 arranged on the two or more pedestals 3 is parallel to the longitudinal direction in which the three-dimensional laser processing apparatus operates, and the two or more pedestals 3 are installed. It is the top view which showed the state which irradiated the laser linearly to the base D which installs the two or more bases 3 by which the steel materials 2 are arrange | positioned along the direction to be formed, and formed the pass line.
Here, the “pedestal” is not particularly limited as long as the steel material 2 can be stably or fixedly arranged.

  In the present invention, the steel material 2 is disposed so as to be parallel to the pass line PL as shown in FIG. 2A or 3B. Alternatively, the steel material 2 may be arranged along the pass line PL as shown in FIG. 2B.

  Next, the pedestal 3 is placed on the base D so as to be parallel to the pass line PL (along the pass line PL), and then one side surface of the steel material 2 arranged on the pedestal 3 is supported. And pressing the steel material 2 so as to be parallel to the pass line PL using a support pressing means including a pressing portion that presses from a side surface opposite to the side surface of the supported steel material 2. To fix the distortion of the steel material 2 (steel material distortion correction step).

In FIG. 4, two or more bases 3 are installed on the base D so as to follow the pass line PL, and then a support portion 5 that supports one side surface of the steel material 2 and the side surface of the supported steel material 2. Is used to press and fix the steel material 2 so as to be parallel to the pass line PL using a support pressing means provided with a pressing portion 4 that presses from the opposite side surface, thereby correcting the distortion of the steel material 2 ( Steel material distortion correction step), a top view showing a state where laser processing is performed on the steel material 2 whose distortion has been corrected.
A three-dimensional laser processing apparatus is used in the pass line forming process of the present invention and the laser processing process in which laser processing is performed on a steel material with corrected distortion. For example, using a three-dimensional laser processing apparatus as shown in FIG. 9, the laser head X moves so that desired laser irradiation can be performed on the base D or the steel material 2, and the laser is applied to the base D or the steel material 2. By irradiating, a pass line can be formed with respect to the base D, the steel material 2 can be cut into an arbitrary shape or length, and a notch or groove with an arbitrary shape can be provided.

  As a preliminary preparation for performing laser processing on a steel material using a three-dimensional laser processing apparatus, the following steps are performed. First, drawing data relating to the shape of the steel material 2 is created (drawing data creation step). Next, based on the created drawing data, the drawing data is rewritten to NC data for setting a laser machining position and a laser machining trajectory of a three-dimensional laser machining apparatus for machining the steel material 2 (NC data creation process). Thereafter, the created NC data is input to a control unit that controls the operation of the three-dimensional laser processing apparatus (NC data input process). The preparation of the three-dimensional laser processing apparatus is completed through the above-described steps.

  In the pass line forming step of the steel material 2 according to the present invention, first, the longitudinal direction of the steel material 2 to be arranged and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel using the three-dimensional laser processing apparatus. As shown in FIG. 2A, or along the longitudinal direction of the steel material 2 to be arranged and the longitudinal direction in which the three-dimensional laser processing apparatus operates (FIG. 2B), the base D on which the steel material 2 is arranged is linear. Is irradiated with a laser to form a pass line PL (pass line forming step).

When two or more pedestals 3 are used as shown in FIG. 3, the longitudinal direction of the steel material 2 arranged on the two or more pedestals 3 is parallel to the longitudinal direction in which the three-dimensional laser processing apparatus operates. Then, along the direction in which the two or more pedestals 3 are installed, the base D on which the pedestals 3 are installed is irradiated with a laser beam to form a pass line PL (pass line forming step). .
Here, the “base” is not particularly limited as long as it is a base on which a pass line can be formed and a steel material can be arranged, and the formation of the pass line by laser irradiation is possible. If possible, the type is irrelevant.

  Here, the “pass line” refers to a reference line for correcting a distortion of a steel material to be described later.

  In the present embodiment, the process of forming the pass line PL by irradiating the base D with a laser beam is particularly limited as long as it can serve as a reference line for correcting the distortion of the steel material 2 described later. Is not to be done. For example, the base D can be cut by linearly irradiating the base D with laser. In that case, a cutting line obtained by cutting the base D can be used as a pass line.

  In addition, you may arrange | position the steel material of a similar shape along the pass line PL so that the formed pass line PL can be visually recognized more clearly. It should be noted that whether or not any member is arranged along the pass line PL can be arbitrarily set by the user depending on conditions such as an object for forming the pass line PL and its color.

Subsequently, the steel material 2 is arrange | positioned so that it may become parallel with respect to the pass line PL, as FIG. 2A or FIG. 3B shows. Alternatively, the steel material 2 may be arranged along the pass line PL as shown in FIG. 2B. One side of the steel material arranged so as to be parallel to the pass line PL (along the pass line) is supported by some support portion (for example, a jig) so that the position of the steel material 2 is not shifted. Support (fix).
As shown in FIGS. 4 and 5, the support portion 5 may be integrated with the pedestal 3 or may be separate from the pedestal 3.

  Hereinafter, as shown in FIG. 3B, a case where the base 3 is arranged along the pass line PL will be described as an example, and the steel material distortion correction step will be described.

As shown in FIG. 4A, the steel material 2 arranged on the pedestal 3 so as to be parallel to the pass line PL has a support portion on one side of the steel material 2 in order to support (fix) the position. 5 is provided. As shown in FIG. 4A, the support portion 5 may be integrated with the pedestal 3 or may be separate from the pedestal 3.
On the other hand, a pressing portion capable of pressing the steel material 2 in the direction shown in FIG. 4B is provided on the side surface opposite to the side surface of the supported (fixed) steel material 2.
Thus, the position of one side surface of the steel material 2 arranged on the pedestal 3 is fixed by the support portion 5, and the side surface side of the other steel material 2 is pressed and fixed by the pressing portion 4.
The pressing part 4 is preferably a pressing fixing member that can move in an arbitrary direction and press and fix the steel material 2.
In FIG. 4, the pedestal 3 and the pressing part 4 having the supporting part 5 are illustrated as the supporting pressing means. Although the mechanical arm is illustrated in FIG. 4 as the pressing fixing member used in the pressing portion 4, it can be appropriately changed to a mechanical cylinder, a hydraulic cylinder, a vise, or the like.

  By using the support pressing means provided with the support portion 5 and the pressing portion 4, the steel material 2 is pressed and fixed so as to be parallel to the pass line PL (along the pass line PL). The distortion is corrected (steel distortion correction process). Since the deterioration of the accuracy of laser processing due to steel material distortion at the time of laser processing is suppressed by passing through the steel material distortion correction process, laser processing predetermined by automatic control using a three-dimensional laser processing apparatus Even if it gives, the precision of laser processing will improve and productivity of steel materials processing will improve dramatically (refer to Drawing 4C).

  In order to understand the invention in more detail, FIG. 5A shows a state in which the position of the steel material 2 is supported (fixed) by the support portion 5 provided on the pedestal 3 and the steel material 2 is pressed and fixed by the pressing portion 4 ( 4B) is a cross-sectional view, and FIG. 5B is a side view of the steel material 2 shown in FIG. 4B as viewed from the pressing portion 4 side. As shown by the black arrow in FIG. 5A, the mechanical arm 4 presses the steel material 2, and FIG. 5A of the base 3 corrects the steel material distortion and bending while fixing the steel material 2.

  FIG. 6 shows an example of the steel material 1 obtained as a result of laser processing on the round steel material 1, and shows a wavy cut surface such as 11 b and a rectangular notch such as 12 a. have.

  FIG. 7 shows an example of the steel material 2 obtained as a result of laser processing on the square steel material 2. In the laser processing step, before starting the laser processing, the three-dimensional laser processing apparatus measures the distortion and deviation amount, and determines the reference position of the steel material 2 where the laser processing is started and the reference position where the laser processing is started in the NC data. After matching and positioning, the steel material 2 whose distortion has been corrected is subjected to laser processing. By making the reference position of the steel material 2 for starting laser processing coincide with the reference position for starting laser processing in the NC data, it is possible to suppress a decrease in accuracy of laser processing.

  FIG. 7A is a side view showing a laser processing position and a laser processing trajectory when a triangular notch 13 is provided in the steel material 2. A white arrow a in FIG. 7A indicates a laser processing trajectory, and indicates that laser irradiation is performed from the lower left side to the upper right side. In addition, a white arrow b in FIG. 7A also indicates a laser processing trajectory, and indicates that laser irradiation is performed from the lower right side to the upper left side. Thus, when providing a triangular cutout, laser processing is performed in two steps. If laser processing is performed from the upper side to the lower side, the metal flows downward from the upper processing position and moves to the laser processing position, so that the accuracy of laser processing is reduced. Become. Therefore, by performing laser processing from the bottom to the top in this way, it becomes possible to provide a notch with higher accuracy than when performing laser processing from the top to the bottom.

  In FIG. 7A, the triangular cutout 13 is taken as an example. However, the present invention is not limited to this. If the cutout has a polygonal shape such as a quadrangular shape, the laser is similarly applied from below to above. It should be noted that the cutout can be provided with higher accuracy by processing.

  FIG. 7B is a side view showing a laser processing position and a laser processing trajectory when the circular notch 15 is provided in the steel material 2. White arrows a, b, c, d, e, and f in FIG. 7B indicate the order of laser processing trajectories, and indicate that laser irradiation is performed in this order. Thus, when performing the laser processing which provides the circular notch 15 in the steel material 2, the position spaced apart from the circumference where the laser processing start position X is cut to the side toward the center position of the circle Then, laser processing is started. This is because the density and intensity of the laser are not stable immediately after the start of laser processing, and if laser processing is started from the circumference, the processing accuracy may be reduced. This is because it is preferable that the laser processing is started by setting the position so as to be separated from the side toward the center position of the circle. Further, laser processing is performed so that the end point Y of laser processing is located above the circumference, that is, above the dotted line α. This is because if such a position is not set as the laser processing end point Y, when the laser processing for providing the circular cutout 15 is completed, the cut out circular member falls, and the laser irradiation portion This is because there is a possibility that the laser processing apparatus may be damaged due to contact.

  FIG. 8 is a side view of the steel material 2 pressed and fixed by the pressing portion 4 as viewed from the side, and the arrangement of the pressing portions 4 (4a to 4e) and each of the steel materials 2 for starting laser processing. The relationship with the reference position Z (Z1 to Z5) is shown. As shown in FIG. 8, the pedestal 3 is used to support the steel material 2 so as to be sandwiched in the vicinity of the laser processing position. By adopting such a configuration, it is possible to perform laser processing with high accuracy without causing bending or distortion at a location where laser processing is performed. Moreover, in FIG. 8, although all the press parts 4a-4e are arrange | positioned in the appropriate position, it is not necessary to arrange | position to all the places and it may arrange sequentially in the vicinity of the laser processing place. Is possible.

  In the laser processing step, it is preferable to repeat the step of matching the reference positions Z1 to Z5 of the steel material 2 where laser processing is started with the reference position where laser processing is started in the NC data at a predetermined steel material interval. As described above, by performing the alignment a plurality of times, the steel material 2 is less likely to be affected by the distortion and bending of the steel material 2 during the laser processing, and further, the position shift, and the laser processing can be performed with higher accuracy.

FIG. 9 shows an example of a three-dimensional laser processing apparatus. Before the three-dimensional laser processing apparatus performs laser processing on the steel material, the reference position z ( It is the figure which showed a mode that a height was measured. Similarly, the three-dimensional laser processing apparatus shown in FIG. 9 measures the reference position y (horizontal) and the reference position x (vertical (depth)) of the steel material 2 to set the coordinate system.
Furthermore, in the coordinate system reference position x, reference position y, and reference position z data, the origin data of the coordinate system can be set to '0'.
Based on the data of the set coordinate system (data serving as a reference point), the three-dimensional laser processing apparatus shown in FIG. , Y, and z can be recognized as numerical values in the coordinate system.
Thereby, it is possible to calculate how much the position of the steel material 2 is deviated from the pass line PL and how much the outer shape of the steel material 2 is distorted. When it is determined that there is a position shift of the steel material 2 or a distortion of the outer shape, the three-dimensional laser processing apparatus shown in FIG. 9 automatically corrects the value of the position shift of the steel material 2 or automatically In particular, the distortion value of the outer shape of the steel material 2 can be corrected.
As described above, after automatically correcting the positional deviation of the steel material 2 or the distortion of the outer shape of the steel material 2 by the three-dimensional laser processing apparatus, the reference position of the steel material to start laser processing and the reference to start laser processing in NC data The steel material may be laser processed by matching the position.

  When heat is generated by laser processing, the steel material may be distorted. In this case, distortion of the steel material is suppressed by using the pressing means 5 to press and fix the steel material 2 along the pass line PL. The three-dimensional laser processing apparatus can cut the steel material 2 into a desired shape, while suppressing distortion due to heat generated by laser processing using the pressing means.

  Hereinafter, since it is synonymous with the above-mentioned description, although illustration is abbreviate | omitted, the steel material processing system of this invention is demonstrated in detail. The steel material processing system of the present invention uses a three-dimensional laser processing apparatus that includes a laser light source and processes a steel material into an arbitrary shape. Further, drawing data creation means for creating drawing data relating to the shape of the steel material 2 to be processed, and based on the created drawing data, the drawing data is converted into a laser processing position and laser processing of a three-dimensional laser processing apparatus for processing the steel material 1. NC data creating means for rewriting NC data for setting the trajectory, and NC data input means for inputting the created NC data to a control unit that controls the operation of the three-dimensional laser processing apparatus. Moreover, the steel material 2 is arrange | positioned to the pass line formed by irradiating the laser to the base D where the steel material 2 is arrange | positioned linearly along the direction where the steel material 2 is arrange | positioned using a three-dimensional laser processing apparatus. Then, the steel material distortion correcting means for correcting the distortion of the steel material 2 by pressing and fixing the steel material 2 along the pass line PL using the pressing means 5 capable of pressing and fixing the steel material 2. Have. Furthermore, it has a laser processing means for applying laser processing to the steel material 1 whose distortion is corrected by matching the reference position of the steel material for starting laser processing with the reference position for starting laser processing in NC data.

  The above description shows only a part of the embodiment of the present invention, and these configurations can be combined alternately or various changes can be made without departing from the gist of the present invention. Note that there are some points.

1 Round Steel 2 Square Steel 3 Base 4 Mechanical Arm (Pressing Fixing Member)
5 Pressing means PL Pass line D Base Z Reference position

Claims (13)

A steel material processing method for processing a steel material using a three-dimensional laser processing apparatus,
A drawing data creation step for creating drawing data relating to the shape of the steel material;
Based on the created drawing data, the drawing data is rewritten to NC data for setting a laser machining position and a laser machining trajectory of the three-dimensional laser machining apparatus for machining the steel material;
NC data input step for inputting the created NC data to a control unit that controls the operation of the three-dimensional laser processing apparatus;
Using the three-dimensional laser processing apparatus, a base for installing a base on which the steel material is arranged so that the longitudinal direction of the steel material arranged on the pedestal and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel to each other A pass line forming step of forming a pass line by irradiating a laser in a straight line;
The pedestal is installed on a base so as to be parallel to the path line, and then a support part that supports one side surface of the steel material arranged on the pedestal, and the side surface of the supported steel material Steel material distortion correction that corrects distortion of the steel material by pressing and fixing the steel material so as to be parallel to the pass line, using a support pressing means having a pressing portion that is pressed from the opposite side surface. Process,
A steel material processing method comprising: a laser processing step of matching a reference position of a steel material for starting laser processing with a reference position for starting laser processing in NC data and performing laser processing on the steel material in which the distortion is corrected. The pass line forming step includes
Using the three-dimensional laser processing apparatus, the longitudinal direction of the steel material arranged on two or more pedestals and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel, and the two or more pedestals The steel material processing method of Claim 1 which forms a pass line by irradiating a laser linearly to the base which installs the two or more bases by which the said steel materials are arrange | positioned along the direction in which a steel material is installed.   The support pressing means includes a support portion that supports one side surface of the steel material, and the pedestal moves the pressing portion that presses from a side surface opposite to the side surface of the supported steel material in an arbitrary direction. The steel material processing method of Claim 1 or 2 which consists of a press fixing member which can be fixed.   The steel pressing method according to claim 3, wherein the pressing and fixing member is a mechanical arm, a mechanical cylinder, a hydraulic cylinder, or a vise.   The steel material processing method as described in any one of Claims 1-4 which supports the said steel material in the vicinity of the position which laser-processes the said steel material using the said base.   The steel material processing method according to any one of claims 1 to 5, wherein when performing laser processing for providing a polygonal cutout on the steel material, laser processing is performed from below to above.   When performing the laser processing which provides a circular notch with respect to the said steel material, laser processing is performed so that the end point position of laser processing may be located above the circumference. The steel material processing method as described in 2.   When performing laser processing to provide a circular notch to the steel material, the laser processing start position is located on the side toward the center position of the circle from the circumference to be cut. The steel material processing method as described in any one of Claims 1-7 which performs a laser processing.   9. The laser machining step according to claim 1, wherein the step of matching the reference position of the steel material for starting laser processing with the reference position for starting laser processing in the NC data is repeated at a predetermined steel material interval. The steel material processing method as described in a term. A three-dimensional laser processing apparatus that includes a laser light source and processes steel into an arbitrary shape;
Drawing data creating means for creating drawing data relating to the shape of the steel material;
NC data creating means for rewriting the drawing data to NC data for setting a laser machining position and a laser machining trajectory of the three-dimensional laser machining apparatus for machining the steel material based on the created drawing data;
NC data input means for inputting the created NC data to a control unit that controls the operation of the three-dimensional laser processing apparatus;
Using the three-dimensional laser processing apparatus, a base for installing a base on which the steel material is arranged so that the longitudinal direction of the steel material arranged on the pedestal and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel to each other Pass line forming means for forming a pass line by irradiating a laser in a straight line;
The pedestal is installed on a base so as to be parallel to the path line, and then a support part that supports one side surface of the steel material arranged on the pedestal, and the side surface of the supported steel material Steel material distortion correction that corrects distortion of the steel material by pressing and fixing the steel material so as to be parallel to the pass line, using a support pressing means having a pressing portion that is pressed from the opposite side surface. Means,
A steel material processing comprising: a laser processing means for matching a reference position of a steel material for starting laser processing with a reference position for starting laser processing in NC data and performing laser processing on the steel material corrected for distortion. system. The pass line forming means comprises:
Using the three-dimensional laser processing apparatus, steel materials are arranged on two or more pedestals, and the longitudinal direction of the steel materials arranged on the two or more pedestals and the longitudinal direction in which the three-dimensional laser processing apparatus operates are parallel to each other. And forming a pass line by linearly irradiating a base on which the two or more pedestals on which the steel materials are disposed are irradiated along a direction in which the two or more pedestals are installed. Item 11. A steel material processing system according to Item 10.   The support pressing means includes a support portion that supports one side surface of the steel material, and the pedestal moves the pressing portion that presses from a side surface opposite to the side surface of the supported steel material in an arbitrary direction. The steel material processing system according to claim 11, comprising a pressing and fixing member that can be fixed.   The steel material processing system according to claim 11 or 12, wherein the pressing and fixing member is a mechanical arm, a mechanical cylinder, a hydraulic cylinder, or a vise.

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