JP6314054B2 - Automatic programming device in laser processing system - Google Patents

Description

  The present invention relates to a laser processing system that performs laser processing of a workpiece by a laser processing machine having a main chuck and a support chuck, and in particular, detects interference with a component of the workpiece in the support chuck and solves the problem due to the interference. The present invention relates to an automatic programming device that can be avoided.

  FIG. 16 is a configuration diagram of a general laser beam machine.

  As shown in FIG. 16, the laser processing machine 1 holds the workpiece 5 by the main chuck 3 and supports it by the support chuck 7, and irradiates the workpiece 5 with a laser from the laser head 9 in a predetermined procedure. The part 11 is created by cutting the workpiece 5. Such a laser beam machine 1 operates on the basis of a drive signal obtained by converting a program created by an automatic programming device through an NC device.

  In the laser processing machine 1, as shown in FIG. 17, the support chuck 7 is gripped by sandwiching the workpiece 5 by the two left and right rollers 13a and 13b and the two upper and lower rollers 15a and 15b. Yes.

17A shows an outline when the workpiece 5 is a round pipe, FIG. 17B shows an outline when the workpiece 5 is a square pipe, and FIG. An outline in the case where the processed member 5 is an angle steel is shown, and FIG. 17D shows an outline in a case where the processed member 5 is a grooved steel.
As shown by the arrows in FIG. 17, in laser machining of the workpiece 5 made of pipe or steel, the rollers 13 a, 13 b, 15 a, 15 b that hold the workpiece 5 move on the workpiece 5. Yes.

JP 2012-91180 A

  However, when the rollers 13a, 13b, 15a, and 15b move on the workpiece 5, there may be holes or notch openings of parts already formed by machining on the workpiece 5. Furthermore, depending on the shape of the hole or notch, an opening that penetrates the end of the workpiece 5 may be formed.

  When the rollers 13a, 13b, 15a, and 15b move on the opening that penetrates the end of the workpiece 5, the rollers 13a, 13b, 15a, and 15b enter the opening depending on the size of the opening. Later, there was a problem that the process could not be continued due to interference.

  That is, as shown in the table of FIG. 18, an opening that penetrates the end of the member to be processed 5 is formed depending on the shape of the member to be processed 5 and the type of hole or notch in the part. FIG. 18 is a table showing a state in which an opening penetrating the end of the workpiece 5 is formed depending on the shape of the workpiece 5 and the type of hole or notch in the part.

  The state of the workpiece 5 in the case of B-02 and B-06 shown in FIG. 18 is as shown in FIG.

  As shown in FIG. 19 (a), an opening 11h penetrating the end of the component 11 is formed on the upper surface side of the component 11 of the workpiece 5, and as shown in FIG. The opening part 11h which penetrates the edge part of the component 11 is formed in the front and back side of the 5 component 11.

  In the case where the opening 11h is formed on the upper surface side of the part 11 of the workpiece 5 shown in FIG. 19A, the roller 15a does not come out of the opening 11h of the part 11, and the machining can be continued. The state of disappearance is shown in FIG.

The present invention is for solving the above-mentioned problems, and the invention according to claim 1 includes a laser processing machine for cutting a workpiece to be processed held by a chuck with a laser irradiated from a laser head. In the system, an automatic programming device for creating a machining program for obtaining a part by cutting the workpiece by the laser machine,
Input means for inputting data of the workpiece and data of the parts;
(A) reading the data of the workpiece and the data of the parts;
(B) determining whether or not the chuck interferes with a predetermined portion of the part using the data of the workpiece and the data of the part read in the step (A);
(C) An automatic programming device having a control means for controlling a step of displaying a warning when it is determined in the step (B) that the chuck interferes with a predetermined portion of the component.

  The invention according to claim 2 is characterized in that the control means further controls the step (D) of performing the interference avoidance process when the warning is displayed in the step (C). The automatic programming device according to 1.

  In the invention according to claim 3, when it is determined that the step (B) includes a step (B1) for determining whether or not there is a component that is subject to interference, and that there is a component that is subject to the interference. The step (B2) of determining whether or not the predetermined portion exists within the interference check range of the component, and if it is determined that the predetermined portion is present, the roller of the chuck can get over the predetermined portion. The automatic programming device according to claim 1, further comprising a step (B3) of determining whether or not.

  According to a fourth aspect of the present invention, the chuck comprises a support chuck that is detachable with respect to the laser head, the predetermined part of the component is a hole or a notch, and the interference check range includes the laser head and the laser head. The laser head and the support chuck are connected to each other from a boundary between a first region where processing can be performed with the support chuck connected and a second region where processing can be performed with the laser head and the support chuck separated. The automatic programming device according to claim 3, wherein the automatic programming device is in a range up to a position to be separated.

  The invention according to claim 5 is the automatic according to any one of claims 2 to 4, wherein the step (D) is a process of forming a joint at a predetermined portion where the warning is displayed. A programming device.

  The invention according to claim 6 is the automatic programming device according to any one of claims 2 to 4, wherein the step (D) is installed by inverting a predetermined portion of the part.

  According to the present invention, since interference between a chuck and a part in actual processing is detected, it becomes possible to avoid the inability to continue processing due to interference.

It is explanatory drawing which shows the outline of the laser processing system which implemented this invention. It is a schematic block diagram of the automatic programming apparatus shown in FIG. It is explanatory drawing of the processable area | region of the to-be-processed member 5 hold | maintained by the main chuck | zipper and the support chuck | zipper. It is a flowchart which shows operation | movement of an automatic programming apparatus. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is a flowchart which shows the operation | movement of the interference check process in FIG. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is explanatory drawing of the interference check range in the components of a workpiece. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is a flowchart which shows the operation | movement of the interference check process with respect to the predetermined location in FIG. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is explanatory drawing of the process which detects the interference with the components of the to-be-processed member in a support chuck | zipper. It is explanatory drawing of the process which avoids the problem by interference with the components of the to-be-processed member in a support chuck. It is explanatory drawing of the process which avoids the problem by interference with the components of the to-be-processed member in a support chuck. It is a block diagram of a general laser beam machine. It is explanatory drawing which shows the state hold | gripped so that various workpieces may be inserted | pinched with the roller of a support chuck. It is a table | surface which shows the state in which the opening part which penetrates the edge part of a to-be-processed member is formed with the shape of a to-be-processed member, and the kind of a hole or a notch. It is a figure which shows the state of the to-be-processed member in the case of B-02 and B-06 shown in FIG. It is explanatory drawing which shows the state which cannot continue a process, without a roller interfering with the opening part of the component of a to-be-processed member, and coming out.

  FIG. 1 is an explanatory diagram showing an outline of a laser processing system embodying the present invention.

  As shown in FIG. 1, the laser processing system 10 includes an automatic programming device 16 that creates a processing program for the laser processing machine 1 using data in a database (storage means) 14 or the like.

  Then, NC data based on a predetermined machining program created by the automatic programming device 16 is converted into drive data by the NC device 17 and sent to the laser processing machine 1. Is controlled, and laser processing of the workpiece is performed.

  FIG. 2 is a block diagram showing a schematic configuration of the automatic programming device 16 shown in FIG.

  As shown in FIG. 2, the automatic programming device 16 comprises a computer and has a CPU (control means) 23 to which a ROM 19 and a RAM 21 are connected. The CPU 23 further includes an input device 25 such as a keyboard. A display device 27 such as a display is connected. Further, the database 14 is connected to the CPU 23.

  In the automatic programming device 16, the CPU 23 reads part shape data and workpiece data in the database 14 into the RAM 21 in accordance with an instruction from the input device 25, and will be described later in accordance with a computer program from the ROM 19. A machining program for the laser beam machine 1 is created.

  Next, the processing operation and configuration of the laser processing machine 1 shown in FIG. 1 will be briefly described.

As shown in FIG. 1, a laser beam machine 1 holds a workpiece 5 by a main chuck 3 and supports it by a support chuck 7, and irradiates the workpiece 5 with a laser from a laser head 9 according to a predetermined procedure. The part 11 is created by cutting the workpiece 5. In addition, such a laser beam machine 1 operates based on a drive signal obtained by converting a program created by an automatic programming device using an NC device.
In the laser processing machine 1, as shown in FIG. 17, the support chuck 7 is gripped by sandwiching the workpiece 5 by the two left and right rollers 13a and 13b and the two upper and lower rollers 15a and 15b. Yes.

  In addition, about the structure of the support chuck | zipper 7 which has roller 13a, 13b, 15a, 15b, since it describes in a prior art document, it abbreviate | omits.

  Next, the processable area of the workpiece 5 held by the main chuck 3 and the support chuck 7 in the laser processing machine 1 will be described.

  FIG. 3 is an explanatory diagram of a workable region of the workpiece 5 held by the main chuck 3 and the support chuck 7.

  As shown in FIG. 3, the workpiece 5 includes a region 1 where the laser head 9 and the support chuck 7 are connected and a region 1 where the laser head 9 and the support chuck 7 are separated from each other. 2 and a region 3 which is a dead zone that cannot be processed.

  3A shows a state in which the laser head 9 and the support chuck 7 are connected. In this state, the region 1 can be processed, and FIG. 3B shows the laser head 9 and the support chuck. 7 shows a separated state, and in this state, the region 2 can be processed.

  To the state shown in FIG. 3B, first, the laser head 9 and the support chuck 7 are moved to a position A where the laser head 9 and the support chuck 7 are separated in a state where the laser head 9 and the support chuck 7 are connected. This is achieved when only the laser head 9 is moved to the main chuck 3 side.

  Next, the machining program creation operation of the automatic programming device 16 shown in FIGS. 1 and 2 will be described with reference to FIGS.

  FIG. 4 is a flowchart showing the operation of the automatic programming device. FIGS. 5 to 6, FIGS. 8 to 10, FIGS. 12 and 13 show the parts of the workpiece in the support chuck in the program creation operation by the automatic programming device 16. 14 and 15 are explanatory diagrams of processing for avoiding problems due to interference with parts of the workpiece in the support chuck, and FIG. 7 is an interference check in FIG. FIG. 11 is a flowchart illustrating the operation of the interference check process for a predetermined location in FIG. 7.

  In step 101 of FIG. 4, a part is placed on the workpiece based on the part data and workpiece data read in advance via the input device 25.

  As shown in FIG. 5, the component 11 is placed on the workpiece 5 in accordance with an instruction from the operator from the input device 25 of the automatic programming device 16.

  For example, as illustrated in FIG. 6, the first component 11 a and the second component 11 b are arranged on the workpiece 5.

Next, in step 103, automatic processing is input and executed by the operator.
As shown in FIG. 5, the operator presses the automatic processing button 25a of the input device 25, and the machining program is automatically generated.

  Next, in step 105, an interference check process with the component of the workpiece in the support chuck is performed.

  This interference check process will be described with reference to the flowchart of FIG.

First, in step 201 in FIG. 7, a part (Parts-X) to be subjected to interference check is obtained, and in step 203, it is determined whether or not there is Parts-X.
A specific example of the part (Parts-X) that is the target of the interference check will be described with reference to the example shown in FIG.

  As shown in FIG. 8A, when the part 11b is to be formed in the part of the region 1 adjacent to the region 2 in the workpiece 5, the outer shape 11b1 on the left side of the part 11b is cut, and FIG. As shown in FIG. 5, the hole 11h of the component 11b is formed. Then, as shown in FIG. 8C, the laser head 9 and the support chuck 7 are moved to the separation position A in order to cut the outer shape 11b2 on the right side of the component 11b. 7 rollers 15a may enter the hole 11h of the component 11b and interfere with each other.

  Therefore, in the case of this specific example, the part 11b is determined as a part (Parts-X) to be subjected to interference check. Actually, when the roller 15a of the support chuck 7 enters and interferes with the hole 11h of the component 11b, the processing cannot be continued.

  Incidentally, when interference does not occur, the laser head 9 and the support chuck 7 are moved to the separation position A as shown in FIG. 8D, and the laser head 9 and the support chuck 7 are separated at the position A. Then, the laser head 9 is moved to the right outer shape 11b2 of the component 11b, and the right outer shape 11b of the component 11b is cut.

  Next, when it is determined in step 203 that there is a part (Parts-X, 11b) subject to interference check, in step 205, all holes or notches (Hole-X) within the interference check range of the part 11b. , Notch-X) is determined, and it is determined in step 207 whether there are Hole-X and Notch-X.

  As shown in FIG. 9, the interference check range refers to a region 1 (region where processing can be performed with the laser head 9 and the support chuck 7 coupled) and a region 2 (state where the laser head 9 and the support chuck 7 are separated). And a position A where the laser head 9 and the support chuck 7 are separated from each other.

  A specific example of all holes or notches (Hole-X, Notch-X) within the interference check range of the component 11b will be described with reference to FIG.

  As shown in FIG. 10 (a), the component 11c is provided with a plurality of holes or notches. Among them, holes or notches within the interference check range include holes 11h1, 11h2, and 11h3.

  Next, when it is determined in Step 207 that there are Hole-X and Notch-X, in Step 209, an opening that penetrates the material edge from the front direction or the upper surface direction is selected from Hole-X and Notch-X. A hole or notch (Hole-Y, Notch-Y) is obtained, and it is determined in step 211 whether or not there are Hole-Y and Notch-Y.

  As a specific example, among the holes 11h1, 11h2, and 11h3 within the interference check range shown in FIG. 10A, those having an opening that penetrates the material end from the front direction or the top surface direction are shown in FIG. ), Holes 11h1 and 11h2 are formed.

  Next, when it is determined in Step 211 that there are Hole-Y and Notch-Y, an interference check for Hole-Y and Notch-Y is performed in Step 213.

  Details of the interference check process for Hole-Y and Notch-Y in step 213 will be described with reference to the flowchart of FIG.

  In step 301 of FIG. 11, the width that can be overcome even when the roller of the support chuck enters the opening of the part hole is set to a predetermined value CW, and the roller of the support chuck enters the opening of the part hole. Even so, the height that can be overcome is set to a predetermined value CH.

  As a specific example, as shown in FIG. 12A, when the width of the opening of the hole 11h of the component 11b is W and the height of the opening of the hole 11h of the component 11b is H, FIG. ), A width CW is set so that the roller 15a of the support chuck 7 can get over even if the roller 15a of the support chuck 7 enters the opening portion of the hole 11h of the component 11b. The height CH that can be overcome even when entering is set.

  Next, in step 303, the number of Hole-Y and Notch-Y is set to N, and in step 305, i = 1 is set.

  Next, in step 307, it is determined whether or not a joint is set in the hole of the component.

  Here, when a joint is set in the hole 11h of the component 11b, since no opening is formed in the hole 11h of the component 11b, the roller 15a of the support chuck 7 does not interfere with the hole 11h (step 315). ).

  If a joint is not set in the hole of the part in step 307, the width of the bounding box at the opening of the hole of the target part is set to W and the height is set to H in step 309.

  As a specific example, as shown in FIG. 12A, the width of the opening of the hole 11h of the component 11b is W, and the height of the opening of the hole 11h of the component 11b is H.

  Next, in step 311, the width W and the height H of the bounding box of the hole of the target component are compared with the width CW and the height CH that can be overcome even if entering the opening of the hole of the component, and W> It is determined whether CW and H> CH are satisfied.

  If W> CW and H> CH are satisfied in step 311, it is determined in step 313 that the roller of the support chuck interferes with the opening of the hole of the component.

  As a specific example, as shown in FIG. 12C, in the case of W> CW and H> CH, the roller 15a of the support chuck 7 enters the hole 11h and cannot get over the hole 11h due to interference. Become.

  If W> CW and H> CH are not satisfied in step 311, it is determined in step 315 that the roller of the support chuck does not interfere with the opening of the hole of the component.

As a specific example, as shown in FIG. 12 (d), when W> CW and H <= CH, the roller 15a of the support chuck 7 enters the hole 11h and then gets over the hole 11h. As shown in FIG. 12 (e), when W <= CW and H> CH, the roller 15a of the support chuck 7 does not enter the hole 11h but can get over the hole 11h. FIG. 13 shows an example in which the widths W1 and W2 on the front side and the back side are different in a hole 11h which is crotch on the three surfaces of the part 11b of the square pipe, and the same interference check as that shown in FIG. Done.
In step 317, i = i + 1 is set. In step 319, it is determined whether i> N. If i> N is not satisfied, the process returns to step 307. If i> N, the interference check process is terminated.

  When the interference check for Hole-Y and Notch-Y shown in FIG. 11 is completed, the process returns to the flowchart of FIG. 7. In step 215, it is determined whether or not there is interference. Warning indications (warning indications) are made at Notch Hole-Y and Notch-Y.

  As a specific example, as shown in FIG. 14A, a mark C indicating interference is displayed on the hole 11h3 in the interference check range in the image displayed on the display device 27 of the automatic programming device 16. .

  As a method for indicating interference, in addition to the mark C, the display color of the hole 11h3 may be changed.

  When the interference check process shown in FIG. 7 is completed, the process returns to the flowchart of FIG. 4. In step 107, it is determined whether there is a warning display. If there is a warning display, an interference avoidance process is performed in step 109. .

  As a specific example, as shown in FIG. 14B, a joint D is provided in a portion that becomes a hole 11h3 in which a mark C indicating interference is displayed.

  By doing so, the hole 11h3 is not formed by the joint D, and interference can be avoided.

  As another interference avoidance process, as shown in FIG. 15A, when a mark C indicating interference is displayed on the hole 11h3 in the interference check range in the image displayed on the display device 27, As shown in FIG. 15B, the setting is changed so that the component 11e is reversed and installed.

By doing so, the hole 11h3 is out of the interference check range, and interference is avoided.
As described above, according to the present embodiment, whether or not the roller of the support chuck interferes with the opening of the hole of the component is checked at the creation stage of the machining program. Since interference avoidance processing is also performed, it is possible to avoid the inability to continue actual machining.

  The present invention is not limited to the embodiments of the invention described above, and can be implemented in other modes by making appropriate modifications.

DESCRIPTION OF SYMBOLS 1 ... Laser processing machine 3 ... Main chuck 5 ... Work piece 7 ... Support chuck 9 ... Laser processing head 10 ... Laser processing system 11 ... Parts 13, 15 ... Roller 14 ... Database 16 ... Automatic programming device 17 ... NC device 19 ... ROM
21 ... RAM
23 ... CPU
25 ... Input device 27 ... Display device

Claims (6)

In a processing system having a laser processing machine that cuts a workpiece held by a chuck with a laser irradiated from a laser head, the laser processing machine cuts the workpiece to obtain a part. An automatic programming device for creating a machining program,
Input means for inputting data of the workpiece and data of the parts;
(A) reading the data of the workpiece and the data of the parts;
(B) determining whether or not the chuck interferes with a predetermined portion of the part using the data of the workpiece and the data of the part read in the step (A);
(C) An automatic programming device comprising: a control means for controlling a step of displaying a warning when it is determined in step (B) that the chuck interferes with a predetermined portion of the component. 2. The automatic programming apparatus according to claim 1, wherein when the warning is displayed in the step (C), the control unit controls the step (D) of performing the interference avoidance process. 3.   If it is determined in step (B1) that there is a part to be interfered with, the step (B) is within the interference check range of the part. The step (B2) of determining whether or not the predetermined portion is present and the step of determining whether or not the roller of the chuck can get over the predetermined portion when it is determined that the predetermined portion is present (B2). The automatic programming apparatus according to claim 1, further comprising: B3).   The chuck is composed of a support chuck that is detachable with respect to the laser head, the predetermined part of the component is composed of a hole or a notch, and the interference check range is in a state where the laser head and the support chuck are connected. A range from a boundary between a first region where processing can be performed and a second region where processing can be performed in a state where the laser head and the support chuck are separated to a position where the laser head and the support chuck are separated. The automatic programming device according to claim 3. 5. The automatic programming device according to claim 2, wherein the step (D) is a process of forming a joint at a predetermined portion where the warning is displayed. 5. The automatic programming apparatus according to claim 2, wherein the step (D) is installed by inverting a predetermined portion of the part.

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