WO2016194181A1 - Dispositif de commande numérique et procédé de coupe - Google Patents

Dispositif de commande numérique et procédé de coupe Download PDF

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Publication number
WO2016194181A1
WO2016194181A1 PCT/JP2015/066082 JP2015066082W WO2016194181A1 WO 2016194181 A1 WO2016194181 A1 WO 2016194181A1 JP 2015066082 W JP2015066082 W JP 2015066082W WO 2016194181 A1 WO2016194181 A1 WO 2016194181A1
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WO
WIPO (PCT)
Prior art keywords
reference point
machining
workpiece
cutting
numerical control
Prior art date
Application number
PCT/JP2015/066082
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English (en)
Japanese (ja)
Inventor
雄哉 別役
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2015/066082 priority Critical patent/WO2016194181A1/fr
Publication of WO2016194181A1 publication Critical patent/WO2016194181A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work

Definitions

  • the present invention relates to a numerical control device and a cutting method that perform control based on a fixed cycle program.
  • the fixed cycle program can command a series of operations such as machining position, machining depth, depth of cut, reference point, cutting speed and number of repetitions of a fixed cycle when cutting a workpiece. It is a kind of program.
  • Patent Document 1 relating to a fixed cycle control device for a two-stage hole
  • a reference initial point and a second initial point are set in front of the reference initial point, and rapid feed and cutting feed are combined.
  • processing techniques are disclosed. This technique is intended for two-step drilling through a workpiece.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a numerical control device capable of improving the cutting chip discharge efficiency and shortening the machining time.
  • the present invention is a numerical control device for controlling the driving of a processing tool for cutting a workpiece, which is set below the surface of the workpiece. From the first reference point to the target position deeper than the first reference point, the processing tool performs cutting feed with cutting on the workpiece, and then the target position is set closer to the surface than the first reference point. A machining cycle for causing the machining tool to return to the second reference point is performed.
  • the numerical control device has the effect of improving the cutting chip discharge efficiency and shortening the processing time.
  • FIG. 6 is a diagram for explaining the meaning of a command format and a commanded address of a fixed cycle program in which one reference point is commanded according to the first embodiment;
  • indicated was instruct
  • Process drawing explaining the hole processed by control of the numerical control apparatus concerning Embodiment 1 The figure explaining the 2nd process part processed by control of the numerical control apparatus concerning Embodiment 1.
  • indicated by the numerical control apparatus concerning Embodiment 1 is implemented.
  • the figure explaining one machining cycle in the fixed cycle program implemented by the numerical control apparatus concerning Embodiment 1 The figure explaining the processing cycle by control of the numerical controller concerning Embodiment 1.
  • FIG. 3 is a diagram illustrating an example of a fixed cycle program in which one reference point according to the first embodiment is commanded.
  • FIG. 3 shows an example in which the program described in the subprogram 2 is read by a command of the fixed cycle program of one block when the fixed cycle is called in the main program 1 which is a machining program.
  • the numerical control device 100 is executing the main program 1 and reads the call instruction of the fixed cycle program described in the block (P1), the process jumps to the subprogram 2, and from (P2) to ( The numerical control device 100 reads the programs described in the block of P11) in order from the top.
  • FIG. 3 shows a fixed cycle program for drilling indicated by “G83”.
  • the reference point of the fixed cycle program is a point that passes through the processing tool 35 or changes the moving direction by rapid feed or cutting feed. That is, it is a point that becomes the start point or end point of rapid feed or cutting feed.
  • FIG. 4 is a diagram for explaining the meaning of the command format and the commanded address of the fixed cycle program in which one reference point according to the first embodiment is commanded.
  • the fixed cycle program command is composed of a G code indicating a fixed cycle program and a plurality of addresses. The meaning of each address is as shown in FIG. In FIG. 3, the fixed cycle program corresponding to the subprogram 2 is only executed once, and therefore the description of the number of repetitions of the fixed cycle is omitted.
  • the processing tool 35 moves at a rapid feed from the initial point to the designated reference point. After passing through the reference point, the workpiece 10 is processed while operating by cutting feed as shown in (3) of FIG. When the machining of the workpiece 10 is completed to the depth corresponding to the cutting amount in one machining cycle, the machining tool 35 escapes back to the reference point as shown in FIG. Thereafter, the reference point is a reference for reversing the moving direction of the processing tool 35 and performing another cutting process on the workpiece 10 shown in FIG. 5 (6).
  • FIG. 7 is a diagram for explaining the second machining unit 4 machined by the control of the numerical control device 100 according to the first embodiment.
  • the second machining section 4 is machined by a fixed cycle program for drilling in which one reference point is commanded. As shown in FIG. 7, the reference point is set on the surface of the workpiece 10, and the second processing tool 40 is moved to the initial point. Then, the numerical control device 100 moves the second processing tool 40 from the reference point to the target position 52 by the cutting feed 51, and then the numerical control device 100 performs the fast feed 53 from the target position 52 to the reference point. Move 40. The numerical controller 100 gradually increases the target position 52 and performs this machining cycle a plurality of times. In this way, the second processing tool 40 moves from the initial point, finishes processing the second processing portion 4 on the workpiece 10, and then returns to the initial point again, which is a fixed cycle.
  • FIG. 9 is a diagram for explaining another problem that occurs when the first machining unit 3 is machined by setting one reference point in the first embodiment.
  • the reference point is set above the surface 11 that is the outside of the workpiece 10, and the machining is executed in the same machining cycle as in FIG. 8.
  • the first processing tool 30 is moved by cutting feed in the already processed second processing portion 4, there arises a problem that the processing time increases.
  • the first processing tool 30 moves at a rapid feed 81 from the second reference point to the first reference point, and processes the workpiece 10 with a cutting feed 82 from the first reference point to the target position 83. Thereafter, the numerical control device 100 performs a machining cycle so that the first machining tool 30 moves to the second reference point by rapid traverse 84.
  • 12 to 16 are diagrams for explaining a machining cycle under the control of the numerical control device 100 according to the first embodiment.
  • numerical values are obtained from the first reference point set within the workpiece 10 and below the surface 11 of the workpiece 10 in which the opening of the second machining portion 4 is formed to the target position.
  • the control device 100 causes the first processing tool 30 to execute the cutting feed 101 to process the workpiece 10. Thereafter, the numerical controller 100 returns the tip of the first processing tool 30 to the second reference point that is closer to the surface 11 of the workpiece 10 than the first reference point but is inside the workpiece 10 by fast-forwarding 102.
  • the cutting feed 101 and the rapid feed 102 are included in one machining cycle. Such a machining cycle is carried out a plurality of times with the target position gradually deepened until the machining of the first machining section 3 is completed.
  • the target position is gradually deepened until machining of the first machining unit 3 is completed, and a machining cycle similar to that of FIG. 12 is performed a plurality of times. Thus, it is set above the surface 11 of the workpiece 10.
  • the target position is sequentially deepened and machining cycles similar to those in FIG. 12 are performed a plurality of times until the machining of the first machining portion 3 is completed.
  • 11 is a machining start position in a machining cycle of machining from 11. Accordingly, the first processing tool 30 is moved at a rapid feed rate from the second reference point that is the machining start position to the first reference point that is the starting point of the cutting feed 101. Specifically, the second reference point is set at a position close to the surface 11 of the workpiece 10 or the outer surface 11 of the workpiece 10.
  • the target position is gradually deepened until the processing of the first processing unit 3 is completed, and the same processing cycle as in FIG. 12 is performed a plurality of times.
  • the second reference point in the machining cycle including the rapid feed 110 is the machining start position of the immediately preceding machining cycle, that is, the second reference point of the immediately preceding machining cycle.
  • FIG. 17 is a diagram illustrating an example of a fixed cycle program in which two reference points according to the first embodiment are commanded.
  • the numerical control device 100 is executing the main program 5, which is a machining program
  • the processing jumps to the subprogram 6, and from (P13) to (P25
  • the numerical controller 100 reads the program described in the block) in order from the top.
  • FIG. 17 shows a fixed cycle program for drilling indicated by “G83”.
  • FIG. 20 is a flowchart illustrating an operation processing procedure according to a cutting method in which the numerical control device 100 according to the first embodiment executes a fixed cycle program.
  • a fixed cycle command by the fixed cycle program shown in FIG. 3 or FIG. 17 is read (step S1), it moves to the initial point by fast-forwarding according to the argument of the fixed cycle command. Then, positioning of the X and Y coordinates is executed (step S2). Next, it is determined whether or not there is a second reference point command at the fixed cycle program address (step S3).
  • step S3 When the second reference point is instructed as in the main program 5 of FIG. 17 (step S3: Yes), positioning is executed by rapid traverse to the second reference point as shown in (2) of FIG. S4). After that, as shown in (3) of FIG. 19, it further moves to the first reference point by rapid traverse (step S5). Then, as shown in FIG. 19 (4), the hole machining, which is a cutting step by cutting feed, is executed from the first reference point (step S6). When machining to the target position of the machining cycle, as shown in FIG. 19 (5), the first machining tool 30 is moved to the second reference point as a positioning step of the first machining tool 30 (step S7). .
  • step S8 it is determined whether the movement of the 1st processing tool 30 was completed to the hole bottom designated by the fixed cycle program.
  • step S8: No the process returns to step S5, and the next machining cycle consisting of (6), (7), (8) and (9) in FIG. 19 is executed.
  • step S8: Yes the movement to the hole bottom is completed (step S8: Yes)
  • step S13 it moves to the initial point by fast-forwarding (step S13), finishes the fixed cycle command, and processes to the hole bottom. Ends.
  • step S3 When the second reference point is not instructed as in the main program 1 of FIG. 3 (step S3: No), positioning is executed by rapid traverse to the reference point as shown in (2) of FIG. 5 (step S9). . Thereafter, as shown in (3) of FIG. 5, drilling by cutting feed is executed from the reference point (step S10). When machining is performed up to the target position of the machining cycle, as shown in (4) of FIG. Then, it is determined whether or not the movement to the hole bottom designated by the fixed cycle program is completed (step S12). If the movement to the hole bottom has not been completed (step S12: No), the process returns to step S10, and the next machining cycle consisting of (5), (6) and (7) in FIG. 5 is executed. When the movement to the bottom of the hole is completed (step S12: Yes), as shown in (n) of FIG. 5, it moves to the initial point by rapid traverse (step S13), finishes the fixed cycle command, and processes to the bottom of the hole. Ends.
  • the numerical control device 100 when the workpiece 10 is machined by the fixed cycle program, a plurality of reference points are provided, whereby the first machining tool 30 for the workpiece 10 is provided.
  • the effects of shortening the machining time and improving the cutting chip discharge efficiency can be obtained.
  • the first processing tool 30 can be moved by fast-forwarding the already-cut second processing portion 4, and the processing time can be shortened. Further, after cutting the first processed portion 3, the first processing tool 30 is raised to a position higher than the starting point of the cutting process, such as the outside of the work piece 10, so that the cutting chips generated during the processing can be reduced. 10 can be discharged to the outside.
  • an operation command can be realized by a command by a fixed cycle program described in one block of the machining program.

Abstract

L'invention concerne un dispositif de commande numérique qui permet de commander l'entraînement d'un outil d'usinage (30), pour couper une pièce à travailler (10), et qui effectue un cycle d'usinage dans lequel l'outil d'usinage (30) est amené à effectuer une opération d'avance et de coupe (82), ce qui entraîne la coupe de la pièce à travailler (10), à partir d'un premier point de référence qui est situé en dessous de la surface (11) de la pièce à travailler (10) jusqu'à une position cible (83) plus profonde que le premier point de référence, après quoi l'outil d'usinage (30) est amené à effectuer une opération de retour à partir de la position cible (83) jusqu'à un second point de référence, qui est situé à un emplacement qui est plus proche de la surface (11) que le premier point de référence.
PCT/JP2015/066082 2015-06-03 2015-06-03 Dispositif de commande numérique et procédé de coupe WO2016194181A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/066082 WO2016194181A1 (fr) 2015-06-03 2015-06-03 Dispositif de commande numérique et procédé de coupe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/066082 WO2016194181A1 (fr) 2015-06-03 2015-06-03 Dispositif de commande numérique et procédé de coupe

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WO2016194181A1 true WO2016194181A1 (fr) 2016-12-08

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228154A (ja) * 1985-07-27 1987-02-06 Fanuc Ltd Ｎｃデ−タ作成方法
JPH09168909A (ja) * 1995-10-31 1997-06-30 Kwan Soon Jang ドリル・タップ加工機主軸の駆動制御装置
JPH11216640A (ja) * 1998-02-02 1999-08-10 Toshiba Mach Co Ltd ドリルによる穴あけ加工機の制御装置および穴あけ加工方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228154A (ja) * 1985-07-27 1987-02-06 Fanuc Ltd Ｎｃデ−タ作成方法
JPH09168909A (ja) * 1995-10-31 1997-06-30 Kwan Soon Jang ドリル・タップ加工機主軸の駆動制御装置
JPH11216640A (ja) * 1998-02-02 1999-08-10 Toshiba Mach Co Ltd ドリルによる穴あけ加工機の制御装置および穴あけ加工方法

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