JP5219974B2 - Processing control device, laser processing device and laser processing system - Google Patents

Description

  The present invention relates to a machining control device, a laser machining device, and a laser machining system that perform machining control according to a machining angle with respect to a workpiece.

  The three-dimensional laser processing machine basically performs laser processing by irradiating a workpiece surface with a laser in a plane. In such a three-dimensional laser processing machine, at each teaching point indicating the processing position, the direction of the processing nozzle with respect to the workpiece (incident angle of the laser beam) is set to an appropriate direction, and the processing head is moved at an appropriate moving speed. It is necessary to process it.

  For example, as a means for setting the moving speed of the machining head, there is a three-dimensional laser processing machine having a speed setting function for calculating the moving speed based on the moving amount of each axis between teaching points. In addition, as a three-dimensional laser processing machine for setting the direction of the processing nozzle with respect to the workpiece, a rotation axis (W axis) that can rotate around the central axis of the Z axis (vertical axis) and an axis that is inclined with respect to the Z axis There is a three-dimensional laser processing machine that has a rotatable posture axis (U-axis) and has a head structure (processing head structure) whose machining points are invariable when the rotation axis and the posture axis are rotated.

  For example, in the three-dimensional laser processing machine described in Patent Document 1, the nozzle direction vector is calculated from the angles of the current rotation axis and posture axis, and the angle at which the posture axis has changed in a certain time is calculated. Then, an angle for rotating the rotation shaft is calculated so as to keep the XY direction of the nozzle direction vector constant according to the angle change amount of the posture axis, and control is performed to rotate the rotation shaft by the calculated angle.

International Publication No. 01/087532

  In the above conventional technique, the machining head is moved at a predetermined moving speed regardless of the angle of the machining nozzle with respect to the workpiece. In addition, when the speed setting function for calculating the moving speed of the machining head is applied to the conventional technology, the machining head at each teaching point is assumed that the machining nozzle direction is always perpendicular to the machining surface. The moving speed is set. For this reason, there is a problem in that a portion that is not actually face-to-face is likely to be defective due to an increase in the plate thickness corresponding to the inclination of the processing nozzle direction with respect to the workpiece. Further, when the speed correction is manually performed, there is a problem that it takes a long time to teach the speed correction and that it is difficult to appropriately correct the speed.

  The present invention has been made in view of the above, and obtains a machining control device, a laser machining device, and a laser machining system capable of setting an appropriate moving speed of a machining head in a short time and reducing machining defects. For the purpose.

In order to solve the above-described problems and achieve the object, the present invention provides a processing control apparatus for controlling a three-dimensional laser processing of a workpiece by irradiating a laser with the workpiece at a processing position set on the workpiece. A moving speed setting unit that sets a moving speed of the processing head according to the angle at the processing position for each processing position based on an angle formed by the surface direction of the processing head and a processing nozzle direction of the processing head; A control unit for controlling the three-dimensional laser processing by outputting a control instruction to the workpiece according to the moving speed, and correspondence information indicating a correspondence between a deceleration amount with respect to a reference speed and the angle; comprising a storage unit placing the said moving speed setting unit may be the correspondence relation extracting a deceleration amount corresponding to the angle from the information, and sets the moving speed using the extracted deceleration amount And features.

According to the present invention, the deceleration amount corresponding to the angle is extracted from the correspondence information indicating the correspondence relationship between the deceleration amount with respect to the reference speed and the angle, and the moving speed is set using the extracted deceleration amount. Thus, it is possible to set an appropriate moving speed in a short time and reduce processing defects.

FIG. 1 is a diagram illustrating a configuration of a three-dimensional laser processing machine according to an embodiment. FIG. 2 is a diagram illustrating an example of the configuration of the machining head. FIG. 3 is a block diagram showing the configuration of the laser processing system according to the embodiment. FIG. 4 is a diagram for explaining the nozzle angle with respect to the workpiece. FIG. 5 is a diagram for explaining the nozzle angle at each teaching point. FIG. 6 is a diagram for explaining the nozzle angle corresponding to the workpiece shape. FIG. 7 is a flowchart showing an operation procedure of the laser processing system. FIG. 8 is a diagram illustrating an example of the angle / speed correspondence information. FIG. 9 is a diagram illustrating a configuration example of NC data.

  Hereinafter, a processing control device, a laser processing device, and a laser processing system according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram showing a configuration of a three-dimensional laser processing machine according to an embodiment of the present invention. In FIG. 1, the structural example of the three-dimensional laser processing machine 100 is shown as a perspective view. The three-dimensional laser beam machine 100 uses the NC data 101A described later and the angle of the processing nozzle 10 with respect to the workpiece W at each teaching point (nozzle angle θ described later) of the processing head 9 at each teaching point. A moving speed (moving speed d described later) is set. Then, three-dimensional laser processing of the workpiece W is performed while moving the processing head 9 at the moving speed d set for each teaching point.

  The three-dimensional laser processing machine 100 includes a work table 2 provided on a bed 1 so as to be movable in the X-axis direction, a cross rail 6 horizontally spanned between left and right columns 4, 5, and a cross rail 6 A Y-axis unit 7 movably provided in the Y-axis direction, a Z-axis unit 8 provided movably in the Z-axis direction on the Y-axis unit 7, and a machining head 9 attached to the Z-axis unit 8; A machining nozzle (laser nozzle) 10 attached to the tip of the machining head 9 and a computer-type machining control device 30 are provided.

  The processing control device 30 includes a screen display unit 11B such as an operation panel 11A and a CRT as a man-machine interface. The work table 2, the Y-axis unit 7, and the Z-axis unit 8 are driven by an X-axis servo motor, a Y-axis servo motor, and a Z-axis servo motor (not shown), respectively, and position control is performed according to each axis command from the machining control device 30. Is done.

  The processing head 9 is configured in the same manner as the conventional one. FIG. 2 is a diagram illustrating an example of the configuration of the machining head. The machining head 9 is attached to the distal end of the Z-axis unit 8 by a bearing member 13 and can be rotated around the central axis of the α axis (Z axis), and the bearing member 15 is attached to the distal end of the rotational shaft 14 by an α axis. And a posture axis 16 that can rotate around an axis that is inclined with respect to (β axis), and a machining nozzle 10 is attached to the tip of the posture axis 16. The rotary shaft 14 is rotationally driven by an α-axis servomotor 17, and the attitude shaft 16 is rotationally driven by a β-axis servomotor 18.

  The X-axis servo motor, the Y-axis servo motor, the Z-axis servo motor (not shown), the α-axis servo motor 17 and the β-axis servo motor 18 are driven by drive signals from the machining control device 30, respectively. The servo motors for each axis (X-axis, Y-axis, Z-axis, α-axis, β-axis) make the separation distance of the machining nozzle 10 from the workpiece (workpiece) W on the work table 2 constant according to the teaching data. While being held, the laser beam spot follows the processing line and the processing control device 30 controls the processing nozzle 10 so that the direction of the processing nozzle 10 is substantially perpendicular (normal) to the surface of the workpiece W. Thereby, when the rotating shaft 14 and the attitude shaft 16 are rotated, the machining point can be made unchanged.

  FIG. 3 is a block diagram showing the configuration of the laser processing system according to the embodiment. The laser processing system includes a CAD / CAM (Computer Aided Design / Computer Aided Manufacturing) 20, a processing control device 30, and a processing device (processing unit) 40.

  The CAD / CAM 20 is a device such as a computer that supports (offline teaching) design and processing of a workpiece W (product) to be processed. The CAD / CAM 20 includes an input unit 21, a workpiece shape information storage unit 22, a machining head position information calculation unit 23, a nozzle angle calculation unit 24, an NC data creation unit 25, an output unit 26, and a workpiece shape design unit 27.

  The input unit 21 inputs instruction information (instruction for setting the shape of the workpiece W) input from a designer who designs the processed shape (product) of the workpiece W. The input unit 21 sends the input instruction information to the workpiece shape design unit 27. The workpiece shape design unit 27 designs the shape of the workpiece W according to the input instruction information, and sends information related to the designed shape of the workpiece W (hereinafter referred to as workpiece shape information a) to the workpiece shape information storage unit 22. The workpiece shape information storage unit 22 is a memory or the like that stores workpiece shape information a.

  The machining head position information calculation unit 23 is based on the workpiece shape information a in the workpiece shape information storage unit 22 and information on the position of the machining head 9 (the position of the teaching point) during laser machining (hereinafter, machining head position information b). Calculated). The machining head position information b is, for example, coordinates of the machining head 9 in the X-axis direction, Y-axis direction, Z-axis direction, α-axis direction, and β-axis direction. The machining head position information calculation unit 23 sends the calculated machining head position information b to the nozzle angle calculation unit 24 and the NC data creation unit 25.

  The nozzle angle calculation unit 24 applies the workpiece W at each teaching point based on the workpiece shape information a in the workpiece shape information storage unit 22 and the machining head position information b calculated by the machining head position information calculation unit 23. The angle (nozzle angle θ) (angle information) of the processing nozzle 10 is calculated. The nozzle angle calculation unit 24 sends the nozzle angle θ to the NC data creation unit 25.

  FIG. 4 is a diagram for explaining the nozzle angle with respect to the workpiece. The nozzle angle θ is an angle formed by the normal vector N on the surface of the workpiece W (the surface direction of the workpiece W) and the direction in which laser light is emitted from the machining nozzle 10 (machining nozzle direction M). When the processing nozzle direction M of the processing head 9 is set to the same direction (perpendicular) as the normal vector N of the surface of the workpiece W, the thickness of the workpiece W to be processed becomes L1. On the other hand, when a predetermined angle (nozzle angle θ) other than 0 ° is given between the processing nozzle direction M of the processing head 9 and the normal vector N of the surface of the workpiece W, the thickness of the workpiece W to be processed becomes L2 (L2 > L1).

  The NC data creation unit 25 uses NC data (for machining the workpiece W) based on the nozzle angle θ from the nozzle angle calculation unit 24 and the machining head position information b calculated by the machining head position information calculation unit 23. NC data 101A) to be described later is created. The NC data 101A is a teaching program (numerical control program) configured to include the position (coordinates) of the machining head 9 for each teaching point and the nozzle angle θ. The NC data creation unit 25 sends the created NC data 101A to the output unit 26. The output unit 26 outputs the NC data 101 A created by the NC data creation unit 25 and sends it to the machining control device 30.

  The machining control device 30 includes an input unit 31, an angle / speed correspondence information storage unit 32, a moving speed setting unit (speed setting function) 33, an NC data creation unit 34, and a control instruction unit (control unit) 35. The input unit 31 receives NC data 101A sent from the output unit 26 of the CAD / CAM 20. The input unit 31 sends the input NC data 101A to the movement speed setting unit 33 and the NC data creation unit 34.

  The angle / speed correspondence information storage unit 32 is a memory or the like that stores information (a later-described angle / speed correspondence information 102) regarding a correspondence relationship between the nozzle angle θ and the moving speed d of the machining head 9. The angle / speed correspondence information (correspondence information) 102 is information that defines at which moving speed d the processing head 9 is moved when the nozzle angle θ is any angle.

  Based on the NC data 101A from the input unit 31 and the angle / speed correspondence information 102 in the angle / speed correspondence information storage unit 32, the movement speed setting unit 33 moves the machining head 9 at each teaching point. d is set. Specifically, the moving speed setting unit 33 extracts the nozzle angle θ from the NC data 101A and extracts the moving speed d of the machining head 9 corresponding to the nozzle angle θ from the angle / speed correspondence information 102. The moving speed setting unit 33 sends the set moving speed d to the NC data creating unit 34.

  The NC data creating unit 34 is NC data for machining the workpiece W (NC data 101B described later) based on the NC data 101A from the input unit 31 and the moving speed d calculated by the moving speed setting unit 33. Create The NC data 101B is a numerical control program in which the moving speed d at each teaching point is added to the NC data 101A. The NC data creation unit 34 sends the created NC data 101B to the control instruction unit 35.

  The control instruction unit 35 is a numerical control device (NC: Numerical Control), and controls the processing device 40 based on the NC data 101B created by the NC data creation unit 34. The control instruction unit 35 sends control instruction information for controlling the processing apparatus 40 to the processing apparatus 40. The control instruction unit 35 of the present embodiment sends an instruction for controlling the movement speed d of the machining head 9 at each teaching point to the machining apparatus 40 based on the movement speed d in the NC data 101B, for example.

  The processing control device 30 and the processing device 40 correspond to the three-dimensional laser processing machine 100. Therefore, the processing apparatus 40 includes the bed 1, the work table 2, the left and right columns 4 and 5, the cross rail 6, the Y-axis unit 7, the Z-axis unit 8, the processing head 9, and the processing nozzle 10. ,have. The processing apparatus 40 performs laser processing on the workpiece W according to the control instruction information transmitted from the control instruction unit 35 of the processing control apparatus 30. The processing apparatus 40 according to the present embodiment moves the processing head 9 at a moving speed d according to an instruction from the control instruction unit 35 for each teaching point.

  Next, the nozzle angle θ at each teaching point set in the NC data 101A and the NC data 101B will be described. FIG. 5 is a diagram for explaining the nozzle angle set at each teaching point. In NC data 101A and 101B, as the position of the machining head 9, for example, teaching points P1 to P4 are set. These teaching points P1 to P4 correspond to machining positions on the workpiece W.

  The workpiece W at the teaching point P1 has a shape parallel to the XY plane, and the workpiece W at the teaching point P3 has a shape parallel to the YZ plane. The work W at the teaching point P2 has a shape that forms an angle of 45 ° with the XY plane and the YZ plane. The work W at the teaching point P4 has a shape parallel to the XY plane. At the teaching points P1 and P2, the nozzle angle θ (0 °) is set so that the direction of the machining nozzle 10 is substantially perpendicular to the surface of the workpiece W.

  However, depending on the machining position, in order to avoid collision between the machining head 9 and the workpiece W, the distance between the normal vector N perpendicular to the surface of the workpiece W and the laser beam emission direction (machining nozzle direction M) from the machining nozzle 10. May have a predetermined angle (nozzle angle θ greater than 0 °). For example, in the vicinity of the teaching point P3, if the nozzle angle θ is 0 °, the machining head 9 and the workpiece W come into contact with each other. Specifically, when the nozzle angle θ is 0 ° in the vicinity of the teaching point P3 (the angle between the main surface of the workpiece W and the processing nozzle 10 is 90 °), the teaching point P4 is set when the teaching point P3 is processed. The workpiece surface w1 of the workpiece W being in contact with the machining head 9 contacts.

  FIG. 6 is a diagram for explaining the nozzle angle corresponding to the workpiece shape. FIG. 6 shows the shape of the workpiece W and the position of the machining head 9 in the vicinity of the teaching point P3. As shown in the figure, when machining the machining position w2 near the teaching point P3, if the nozzle angle θ is 0 °, the tip of the machining nozzle 10 is perpendicular to the YZ plane at the machining position w2. As a result, the posture axis 16 comes into contact with the work surface w1. Therefore, in the NC data 101A and 101B, the nozzle angle θ is set to be a predetermined angle (an angle at which the machining head 9 and the workpiece W do not interfere) with respect to the teaching point P3.

  Further, as described with reference to FIG. 4, when a nozzle angle θ of θ> 0 ° is set in the processing head 9, a workpiece to be processed by an amount corresponding to the inclination of the processing head 9 compared to the case where the nozzle angle θ is 0 °. The plate thickness of W increases. When machining the workpiece W with a nozzle angle θ of θ> 0 °, if the machining head 9 is moved at the same movement speed as when the workpiece W is machined with a nozzle angle θ of θ = 0 °, machining failure will occur. It may become. Therefore, in the present embodiment, the moving speed d (deceleration amount with respect to the reference speed) of the machining head 9 is set according to the nozzle angle θ. In the following, teaching points such as teaching points P1 to P4 may be referred to as teaching points Px.

  Next, an operation procedure of the laser processing system according to the embodiment will be described. FIG. 7 is a flowchart showing an operation procedure of the laser processing system. In the CAD / CAM 20, instruction information for setting the shape of the workpiece W is input from the designer to the workpiece shape design unit 27 via the input unit 21. The workpiece shape design unit 27 designs the shape of the workpiece W according to the input instruction information, and sends the designed workpiece shape information a to the workpiece shape information storage unit 22. The workpiece shape information storage unit 22 stores workpiece shape information a.

  The machining head position information calculation unit 23 calculates machining head position information b related to the position of the machining head 9 during laser machining based on the workpiece shape information a in the workpiece shape information storage unit 22 (step S10). The machining head position information calculation unit 23 sends the calculated machining head position information b to the nozzle angle calculation unit 24 and the NC data creation unit 25.

  The nozzle angle calculation unit 24 is configured to determine the nozzle angle at each teaching point Px based on the workpiece shape information a in the workpiece shape information storage unit 22 and the machining head position information b calculated by the machining head position information calculation unit 23. θ is calculated (step S20). The nozzle angle calculation unit 24 sends the nozzle angle θ to the NC data creation unit 25.

  The NC data creation unit 25 generates NC data 101A having the nozzle angle θ based on the nozzle angle θ from the nozzle angle calculation unit 24 and the processing head position information b calculated by the processing head position information calculation unit 23. Create (step S30). The NC data creation unit 25 sends the created NC data 101A to the output unit 26. The output unit 26 sends the NC data 101A created by the NC data creation unit 25 to the machining control device 30.

  NC data 101 A sent from the output unit 26 of the CAD / CAM 20 is input to the machining control device 30 via the input unit 31 to the moving speed setting unit 33 and the NC data creation unit 34.

  The moving speed setting unit 33 moves the machining head 9 at each teaching point Px based on the NC data 101A from the input unit 31 and the angle / speed correspondence information 102 in the angle / speed correspondence information storage unit 32. Set the speed d. Here, the angle / speed correspondence information 102 will be described.

  FIG. 8 is a diagram illustrating an example of the angle / speed correspondence information. In the angle / speed correspondence information 102, the nozzle angle θ and the moving speed d of the processing head 9 are associated with each other. For example, 0 ° ≦ θ <30 ° is associated with 100% (reference value) of the moving speed d, 30 ° ≦ θ <60 ° is associated with 60% of the moving speed d, and 60 ° ≦ θ. <90 ° is associated with 30% of the moving speed d. When the moving speed d is 100%, the deceleration is 0%, when the moving speed d is 60%, the deceleration is 40%, and when the moving speed d is 30%, the deceleration is 70%. .

  The moving speed setting unit 33 extracts the nozzle angle θ for each teaching point from the NC data 101A, and extracts the moving speed d of the machining head 9 corresponding to each nozzle angle θ from the angle / speed correspondence information 102. For example, when the nozzle angle θ is 45 °, the moving speed setting unit 33 extracts 60% from the angle / speed correspondence information 102 as the moving speed d corresponding to θ = 45 °, and uses this 60% as the moving speed. d is set (step S40). The moving speed setting unit 33 sends the set moving speed d to the NC data creating unit 34.

  The NC data creating unit 34 creates NC data 101B based on the NC data 101A from the input unit 31 and the moving speed d calculated by the moving speed setting unit 33. The NC data creation unit 34 creates NC data 101B by setting the moving speed d at each teaching point Px in the NC data 101A. For example, the NC data creation unit 34 creates NC data 101B in which the moving speed d at the teaching point P3 is 60% (step S50). The NC data creation unit 34 sends the created NC data 101B to the control instruction unit 35.

  Here, the configuration of the NC data 101A and 101B will be described. FIG. 9 is a diagram illustrating a configuration example of NC data. In FIG. 9, NC data 101A is shown on the upper side, and NC data 101B is shown on the lower side. The NC data 101A includes processing head position information b for each teaching point Px and a nozzle angle θ for each teaching point Px. The NC data 101B includes processing head position information b for each teaching point Px, a nozzle angle θ for each teaching point Px, and a moving speed d for each teaching point Px. In other words, the NC data 101B has a configuration in which the moving speed d at each teaching point Px is added to the NC data 101A.

  In the laser processing system, after setting the moving speed d for each teaching point Px, the workpiece W is subjected to trial machining, and if there is no problem in the trial machining, the workpiece W is mass-produced. When performing trial machining or mass production machining, the control instruction unit 35 sends control instruction information for controlling the machining apparatus 40 to the machining apparatus 40 based on the NC data 101B created by the NC data creation unit 34. Thus, the processing device 40 is controlled.

  The processing apparatus 40 performs laser processing on the workpiece W according to the control instruction information sent from the control instruction unit 35 of the processing control apparatus 30 (step S60). The processing apparatus 40 according to the present embodiment moves the processing head 9 at a moving speed d according to the control instruction information from the control instruction unit 35 for each teaching point Px.

  In the present embodiment, the case where the NC data creating unit 25 creates the NC data 101A based on the machining head position information b and the nozzle angle θ has been described. The NC data 101A may be created based on the information a and the nozzle angle θ.

  In the present embodiment, the case where the CAD / CAM 20 adds the nozzle angle θ to the NC data 101A has been described. However, the CAD / CAM 20 uses the method of the workpiece W surface at each teaching point Px instead of the nozzle angle θ. The line vector N may be added to the NC data 101A. In this case, the moving speed setting unit 33 of the machining control device 30 calculates the nozzle angle θ based on the machining nozzle direction vector of the machining head 9 and the normal vector N of the workpiece W surface. Thereby, even if the inclination of the machining head 9 is corrected on the three-dimensional laser beam machine 100 side, the machining data position information b can be easily and accurately corrected by the NC data creation unit 34.

  Further, in the present embodiment, the case where the CAD / CAM 20 adds the nozzle angle θ to the NC data 101A and sends it to the machining control device 30 has been described. However, the CAD / CAM 20 separately sets the NC data 101A and the nozzle angle θ. May be sent to the processing control device 30.

  Further, in the angle / speed correspondence information 102, the correspondence relationship between the range of the nozzle angle θ and the moving speed d need not be fixed, and may be configured arbitrarily. For example, in the angle / speed correspondence information 102 shown in FIG. 8, three-dimensional laser processing is performed so that the nozzle angle θ when the moving speed d is 100% is 0 ≦ θ <Q1, and Q1 can be arbitrarily set by the user. The machine 100 is configured. Similarly, when the moving speed d is 60%, the nozzle angle θ is set to Q1 ≦ θ <Q2, and the three-dimensional laser processing machine 100 is configured so that Q1 and Q2 can be arbitrarily set by the user from the operation panel 11A or the like. Keep it. Further, the nozzle angle θ when the moving speed d is 30% is set to Q2 ≦ θ <90 °, and the three-dimensional laser processing machine 100 is configured so that Q2 can be arbitrarily set by the user. In the angle / speed correspondence information 102, the three-dimensional laser processing machine 100 may be configured so that the value of the moving speed d can be arbitrarily set. In FIG. 8, in the angle / speed correspondence information 102, the nozzle angle θ is divided into three ranges, but the range of the nozzle angle θ may be two or four or more.

In the present embodiment, the case where the moving speed d is set using the angle / speed correspondence information 102 has been described, but the moving speed d may be set using a predetermined calculation formula using the nozzle angle θ. Good. In this case, the moving speed setting unit 33 sets the moving speed d using, for example, Expression (1).
F ′ = F × cos θ (1)
Here, F ′ is a movement speed d after deceleration, and F is a reference movement speed before deceleration.

  In the present embodiment, the case where the moving speed d of the machining head 9 is changed according to the nozzle angle θ of the machining nozzle 10 has been described. However, machining conditions other than the moving speed d are changed according to the nozzle angle θ. May be. For example, the machining output during laser machining may be changed according to the nozzle angle θ.

  Further, the nozzle angle θ may be calculated by an apparatus (an angle calculation apparatus) other than the CAD / CAM 20. In this case, the angle calculation device includes the nozzle angle calculation unit 24. The angle calculation device may be configured to include the workpiece shape information storage unit 22 or may acquire the workpiece shape information a from the workpiece shape information storage unit 22 of the CAD / CAM 20. Further, the angle calculation device may be configured to include the processing head position information calculation unit 23, or may acquire the processing head position information b from the processing head position information calculation unit 23 of the CAD / CAM 20. The angle calculation device sends the calculated nozzle angle θ to the CAD / CAM 20 or the processing control device 30.

  Further, the moving speed d may be set by a device other than the machining control device 30 (moving speed setting device). In this case, the moving speed setting device includes a moving speed setting unit 33 and an angle / speed correspondence information storage unit 32. The moving speed setting device acquires the NC data 101A from the CAD / CAM 20, and sends the set moving speed d to the machining control device 30.

  Further, in the CAD / CAM 20, the NC data 101A may be created using the created NC data in which the nozzle angle θ is not set. In this case, the NC data creation unit 25 creates NC data 101A using the nozzle angle θ calculated by the nozzle angle calculation unit 24 and the created NC data.

  As described above, according to the embodiment, since the moving speed d corresponding to the nozzle angle θ is set, machining at the moving speed d corresponding to the thickness of the workpiece W can be performed. Further, it is possible to save the trouble of manually correcting the moving speed at each teaching point Px and manually editing the NC data 101A and 101B. Thereby, teaching work time can be shortened. Therefore, it is possible to set an appropriate moving speed d of the machining head 9 in a short time and reduce machining defects.

  Further, since the nozzle angle θ is calculated by the CAD / CAM 20, the moving speed d can be easily set by the machining control device 30. Further, when the CAD / CAM 20 sends the normal vector N of the workpiece W surface to the machining control device 30, when the machining control device 30 corrects the inclination of the machining head 9, the machining head position information b is easily and accurately corrected. It becomes possible to do.

  Further, since the moving speed d is set using the angle / speed correspondence information 102, the moving speed d can be easily set by the machining control device 30. Further, when the moving speed d is set using a predetermined calculation formula using the nozzle angle θ, it is possible to easily set a detailed moving speed according to the nozzle angle θ.

  As described above, the machining control device, the laser machining device, and the laser machining system according to the present invention are suitable for machining control according to the machining angle with respect to the workpiece.

10 Processing nozzle 20 CAD / CAM
22 Work shape information storage unit 23 Machining head position information calculation unit 24 Nozzle angle calculation unit 25, 34 NC data creation unit 27 Work shape design unit 30 Machining control device 32 Angle / speed correspondence information storage unit 33 Movement speed setting unit 35 Control instruction Part 40 Processing apparatus 100 dimensional laser processing machine 101A, 101B NC data 102 Angle / speed correspondence information M Processing nozzle direction N Normal vector P1-P4 Teaching point W Work θ Nozzle angle

Claims (5)

In a processing control device that controls three-dimensional laser processing of a workpiece by irradiating a laser,
Based on the angle formed by the surface direction of the workpiece at the machining position set on the workpiece and the machining nozzle direction of the machining head, the moving speed of the machining head according to the angle at the machining position is A moving speed setting section to be set for each machining position;
A control unit that controls the three-dimensional laser processing by outputting a control instruction to the workpiece according to the set moving speed;
A storage unit that stores in advance correspondence information indicating a correspondence between a deceleration amount with respect to a reference speed and the angle;
Equipped with a,
The moving speed setting unit extracts a deceleration amount corresponding to the angle from the correspondence information, and sets the moving speed using the extracted deceleration amount .   The processing control apparatus according to claim 1, wherein the moving speed setting unit sets the moving speed based on an angle calculated using the surface direction of the workpiece and the processing nozzle direction.   The said moving speed setting part calculates the said angle using the surface direction of the said workpiece | work and the said process nozzle direction, and sets the said moving speed based on the calculated angle. Processing control device. In a laser processing machine that performs three-dimensional laser processing of a workpiece by irradiating a laser,
Based on the angle formed by the surface direction of the workpiece at the machining position set on the workpiece and the machining nozzle direction of the machining head, the moving speed of the machining head according to the angle at the machining position is A moving speed setting section to be set for each machining position;
A control unit that controls the three-dimensional laser processing by outputting a control instruction to the workpiece according to the set moving speed;
A storage unit that stores in advance correspondence information indicating a correspondence between a deceleration amount with respect to a reference speed and the angle;
A processing unit that performs three-dimensional laser processing of the workpiece based on a control instruction from the control unit;
Equipped with a,
The said moving speed setting part extracts the deceleration amount according to the said angle from the said correlation information, and sets the said moving speed using the extracted deceleration amount, The laser processing apparatus characterized by the above-mentioned . In a laser processing system that performs three-dimensional laser processing of a workpiece by irradiating a laser,
A nozzle angle calculation unit that calculates an angle formed by a surface direction of the workpiece at a processing position set on the workpiece and a processing nozzle direction of the processing head;
Based on the calculated angle, a moving speed setting unit that sets a moving speed of the machining head according to the angle at the machining position for each machining position;
A control unit that controls the three-dimensional laser processing by outputting a control instruction to the workpiece according to the set moving speed;
A storage unit that stores in advance correspondence information indicating a correspondence between a deceleration amount with respect to a reference speed and the angle;
Equipped with a,
The said moving speed setting part extracts the deceleration amount according to the said angle from the said correlation information, and sets the said moving speed using the extracted deceleration amount, The laser processing system characterized by the above-mentioned .

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