WO2013100339A1 - 공구 교환 제어 장치 및 그 방법 - Google Patents
공구 교환 제어 장치 및 그 방법 Download PDFInfo
- Publication number
- WO2013100339A1 WO2013100339A1 PCT/KR2012/008540 KR2012008540W WO2013100339A1 WO 2013100339 A1 WO2013100339 A1 WO 2013100339A1 KR 2012008540 W KR2012008540 W KR 2012008540W WO 2013100339 A1 WO2013100339 A1 WO 2013100339A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- base material
- offset
- current
- offset amount
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/16—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine controlled in conjunction with the operation of the tool
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/15503—Processes characterized by special sequencing of operations or the like, e.g. for optimizing tool changing time or capacity in tool storage
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
Definitions
- the present invention relates to a tool change control device and a method thereof, and more particularly, to a tool change during the machining of a two-axis turret machine, the user arbitrarily moves the position of the turret for tool change or uses a second homing to return the turret.
- the present invention relates to a tool change control device and a method for reducing unnecessary time caused by movement and to avoid collisions that may occur during a tool change process.
- the present invention devised to solve the problems of the prior art as described above calculates the minimum travel distance that the tool does not collide with the base material during the tool change process in the tool change process itself without changing the position of the turret commanded by the user during tool change It is an object of the present invention to provide a tool change control device and a method for performing a tool change after transferring a turret by a calculated amount.
- the present invention provides a tool information analysis unit 192 for checking a rotation direction of a turret according to a tool change command and identifying one or more tools located between a current tool and a tool to be exchanged;
- the tool information analyzer 192 calculates a difference between the offset amount of the current tool and the offset amount of the at least one tool by using the offset and mapping data of the at least one tool, and determines the tool closest to the base material.
- a position analyzer 196 which calculates a transferable position of the tool exchangeable so as not to collide with the base material by using the end point position coordinates of the tool selected by the data comparison unit 194 and the outermost position coordinates of the base material. It is characterized by.
- the present invention setting the offset and mapping data (S220), generating the outermost coordinate data of the base material to process the base material (S230); Checking the rotation direction of the turret according to the tool change command and checking at least one tool located between the current tool and the tool to be exchanged (S240); Selecting a tool closest to the base material by calculating a difference between the offset amount of the current tool and the offset amount of the at least one tool using the offset and mapping data for the at least one tool (S260); Calculating a transferable position of a tool exchangeable to avoid collision with the base material by using an end point position coordinate of the selected tool and an outermost position coordinate of the base material (S270); And transferring to a tool exchange position corresponding to the calculated transfer position amount (S280) and exchanging a tool (S290).
- the tool change control apparatus and method thereof of the present invention require unnecessary time by the user randomly moving the position of the turret for tool change or moving the turret for the tool change during the machining of the two-axis turret equipment. There is an effect to reduce.
- the present invention has a remarkable and advantageous effect of avoiding collisions that may occur during tool change.
- FIG. 1 is a block diagram showing a numerical control system to which a tool change control apparatus according to the present invention is applied.
- FIG. 2 is a flowchart illustrating a tool change control method according to the present invention.
- FIG. 4 is a diagram illustrating offset and mapping data applied to the present invention.
- feed motor 140 machine tool
- NC command unit 180 NC analysis unit
- Tool change control device 192 Tool information analysis unit
- the numerical control system includes a human machine interface (HMI) 110, a numerical control (NC) 120, a feed motor 130, a machine tool 140, a turret motor 150, and the like.
- HMI human machine interface
- NC numerical control
- PLC programmable logic controller
- the HMI 110 includes a screen display program and a data input program according to the screen display selection, displays a software switch on the display screen according to the output of the surface display program, and recognizes the on / off of the software switch to operate the machine. Function to give I / O command of.
- the NC 120 recognizes a command of the HMI 110 and performs a machine operation command according to a program content, and the transfer motor 130 controls the servo motor or the spindle motor according to the command of the NC 120. Play a role.
- the PLC 160 commands the sequence control according to the software switch input according to the command of the NC 120.
- the NC 120 includes an NC command unit 170, an NC analysis unit 180, and a tool change control device 190, of which the tool change control device 190 is a new configuration of the present invention.
- the tool change control device 190 includes a tool information analyzer 192, a data comparator 194, and a position analyzer 196.
- the tool information analyzer 192 checks the rotation direction of the turret for exchanging a tool for which a current tool is to be exchanged according to a tool exchange command of the NC command unit 170. That is, the tool information analysis unit 192 checks the total number of ports (tool mounting holes) of the turret to find a tool that may collide with the base material from the tool change command signal of the NC command unit 170, and then the current tool. Find the direction in which to rotate the shortest distance from to the position of the tool to be changed. The tool information analyzer 192 checks at least one tool located between the current tool included in the checked turret rotation direction and the tool to be exchanged. The tool information analyzer 192 acquires the numbers of all the tools that are being rotated up to the tool to be changed.
- the data comparison unit 194 calculates an offset amount difference between the offset amount of the current tool and the offset amount of the one or more tools using the offset and mapping data of the one or more tools identified by the tool information analyzer 192. Using the offset and mapping data for the tool of each tool number acquired by the tool information analysis unit 192, the position of each tool end point in the position of the current turret finds the tool closest to the base material for each axis. At this time, since the tool close to the base material comes out for each axis, it may be a different tool for each axis. The data comparison unit 194 selects the tool closest to the base material by comparing the calculated offset amount differences. The selected tool can find the exact position of the end point using the tool diameter compensation value and the length compensation value from the current coordinate value.
- the position analysis unit 196 calculates a transferable position of the tool exchange so as not to collide with the base material by using the end point position coordinates of the tool selected by the data comparison unit 194 and the outermost position coordinates of the base material.
- the position analysis unit 196 compares the position of the end points of the tools selected by the data comparing unit 194 with the position values of the outer coordinates of the base material generated during cutting, and determines whether the position of the tool end points is closer to the base material than the coordinates of the outer angle. Check it.
- the position analysis unit 196 sets the movement amount on each axis by adding the difference between the position of the end point of the base material and the outermost coordinate value and the amount of allowance desired by the user. In this case, the reason for using the outermost coordinate value of the cutting base material is to prevent the collision between the tool and the base material. At this time, the position analysis unit 196 calculates the transfer position amount by reflecting the transfer margin amount preset for the selected tool.
- the position analyzer 196 subtracts the position coordinate value of the current tool from the outermost position coordinate value of the base material, and adds a preset feed allowance and an offset amount of the selected tool. .
- the position analyzer 196 subtracts the position coordinate value of the current tool from the origin coordinate value of the base material, and adds a preset feed margin and an offset amount of the selected tool.
- FIG. 2 is a flowchart illustrating a tool change control method according to the present invention
- FIG. 3 is a diagram illustrating a tool position calculation according to the present invention.
- the user mounts the base material and the tools to the equipment (S200).
- the tool change control device 190 sets a work offset and a tool offset in order to set a reference point of each tool after the user manually operates the equipment (S210).
- the mounted tools set one or more tool offsets at the same reference point. Failure to set a tool offset on the mounted tool can result in a collision between the substrate and the tool.
- the tool change control device 190 receives a tool offset from the user and sets offset and mapping data for the tool (S220). Through this, offset and mapping data are generated, so that each tool knows tool offset information applied in one program.
- the tool change control device 190 generates outermost coordinate data of the base material, and the base material is processed (S230). External coordinate data is generated during cutting.
- the tool change control device 190 When the tool change control device 190 receives a tool change signal from the NC 120, the tool change control device 190 checks a current tool number and a tool number to be exchanged to find a direction in which the turret rotates. While rotating the tool, the tool to be changed, and the tool to be changed, all of the tool numbers passing through the workpiece are acquired (S240).
- the tool change control device 190 calculates an offset amount difference between the offset amount of the current tool and the offset amount of the one or more tools by using the offset and mapping data for one or more tools (S250).
- the tool change control device 190 compares the calculated offset amount differences to determine whether the tool closest to the base material (the tool existing closest to the base material in each axis), that is, the difference between the offset amounts is the smallest value. Find (S260).
- ⁇ Xoffset is the difference in X-axis offset between the current tool and the other tool
- ⁇ Zoffset difference in Z-axis offset between the current tool and another tool
- Xoffset_current X axis offset amount of current tool
- Zoffset_current Z axis offset amount of the current tool
- Xoffset_target X axis offset amount of tool to change
- Zoffset_target Z offset value of tool to change.
- the tool change control device 190 calculates an amount of transfer positions that can be exchanged with the tool so as not to collide with the base material by using the end point position coordinates of the tool and the outermost position coordinates of the base material (S270). At this time, the optimum feed amount for each axis so that the tool does not collide with the base material in the tool exchange process can be calculated by distinguishing when the tool with and without the inner diameter tool. If there is no internal diameter tool, the tool change control apparatus 190 may obtain the user value by adding the smallest value of the user-defined allowance and the offset amount from the value of the outermost position of the part where the workpiece is processed, minus the current coordinate value. On the other hand, when there is an internal diameter tool, the tool change control device 190 may obtain the user-defined clearance amount and the smallest value of the offset amount by subtracting the current coordinate value from the initial value of the workpiece.
- Xlim outermost x-axis coordinate of the part where the workpiece is machined
- Z ⁇ user-defined z-axis margin.
- the tool change control device 190 transfers the turret to the tool change position (S280), and executes a tool change (turret rotation) (S290).
- FIG. 4 is a diagram illustrating offset and mapping data applied to the present invention.
- the offset and mapping data are mapped to include a user defined feed margin from the tool offset data.
- the offset and mapping data includes tool number (Tool Info.), Length number (H: longitudinal offset), diameter number (D: radial offset), tool direction, and feed allowance.
- the feed allowance is defined by the user when the feed for each tool.
- Tool orientation includes inner or outer diameter tools.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
Description
Claims (4)
- 공구 교환 지령에 따라 터렛의 회전 방향을 확인하고, 현재 공구와 교환될 공구 사이에 위치한 하나 이상의 공구를 확인하는 공구 정보 분석부(192);상기 공구 정보 분석부(192)에서 확인된 하나 이상의 공구에 대한 옵셋 및 맵핑 데이터를 이용하여 상기 현재 공구의 옵셋량과 상기 확인된 하나 이상의 공구의 옵셋량 간의 차이를 계산하여 모재와 가장 근접한 공구를 선택하는 데이터 비교부(194); 및상기 데이터 비교부(194)에서 선택된 공구의 끝점 위치 좌표와 상기 모재의 최외각 위치 좌표를 이용하여 상기 모재와 충돌되지 않도록 공구 교환 가능한 이송 위치량을 산출하는 위치 해석부(196)를 포함하는 공구 교환 제어 장치.
- 제 1항에 있어서,상기 위치 해석부(196)는,상기 선택된 공구에 대해 미리 설정된 이송 여유량을 반영하여 이송 위치량을 산출하는 것을 특징으로 하는 공구 교환 제어 장치.
- 제 1항에 있어서,상기 위치 해석부(196)는,상기 공구에 내경 공구가 포함되지 않은 경우에는, 상기 모재의 최외각 위치 좌표값에서 현재 공구의 위치 좌표값을 감산하고 상기 선택된 공구의 옵셋량을 가산하며, 상기 공구에 내경 공구가 포함되는 경우에는, 상기 모재의 원점 좌표값에서 현재 공구의 위치 좌표값을 감산하고 상기 선택된 공구의 옵셋량을 가산하는 것을 특징으로 하는 공구 교환 제어 장치.
- 옵셋 및 맵핑 데이터를 설정하고(S220), 모재의 최외각 좌표 데이터를 생성하여 모재를 가공하는 단계(S230);공구 교환 지령에 따라 터렛의 회전 방향을 확인하고, 현재 공구와 교환될 공구 사이에 위치한 하나 이상의 공구를 확인하는 단계(S240);상기 확인된 하나 이상의 공구에 대한 옵셋 및 맵핑 데이터를 이용하여 상기 현재 공구의 옵셋량과 상기 확인된 하나 이상의 공구의 옵셋량 간의 차이를 계산하여 모재와 가장 근접한 공구를 선택하는 단계(S260);상기 선택된 공구의 끝점 위치 좌표와 상기 모재의 최외각 위치 좌표를 이용하여 상기 모재와 충돌되지 않도록 공구 교환 가능한 이송 위치량을 산출하는 단계(S270); 및상기 산출된 이송 위치량에 해당하는 공구 교환 위치로 이송하고(S280), 공구를 교환하는 단계(S290)를 포함하는 공구 교환 제어 방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280064448.9A CN104023908B (zh) | 2011-12-26 | 2012-10-18 | 工具交换控制装置及其方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0142825 | 2011-12-26 | ||
| KR1020110142825A KR101856198B1 (ko) | 2011-12-26 | 2011-12-26 | 공구 교환 제어 장치 및 그 방법 |
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| Publication Number | Publication Date |
|---|---|
| WO2013100339A1 true WO2013100339A1 (ko) | 2013-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2012/008540 Ceased WO2013100339A1 (ko) | 2011-12-26 | 2012-10-18 | 공구 교환 제어 장치 및 그 방법 |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101856198B1 (ko) |
| CN (1) | CN104023908B (ko) |
| WO (1) | WO2013100339A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191310A (zh) * | 2014-08-11 | 2014-12-10 | 宁波海天精工股份有限公司 | 一种装有防撞换刀装置的数控加工中心及其使用方法 |
| CN106553074A (zh) * | 2015-09-30 | 2017-04-05 | Dmg森精机株式会社 | 工具更换装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312654A (zh) * | 2015-06-30 | 2017-01-11 | 遵义林棣科技发展有限公司 | 一种外加式数控车床自动控制系统 |
| KR102037578B1 (ko) * | 2017-11-14 | 2019-10-29 | 주기석 | C값 생성기능을 가진 공구 교체 장치 |
| CN111185788A (zh) * | 2018-11-14 | 2020-05-22 | 圣杰国际股份有限公司 | 工具机智能管理系统及其管理方法 |
| CN110480390A (zh) * | 2019-08-09 | 2019-11-22 | 广东润星科技有限公司 | 一种圆盘刀库的刀臂一键回原位的方法 |
| CN113560929B (zh) * | 2021-06-30 | 2023-02-28 | 东风设备制造有限公司 | 一种可自由切换的刀库换刀方法 |
| CN114670047A (zh) * | 2022-05-30 | 2022-06-28 | 苏州珈玛自动化科技有限公司 | 一种立式综合加工中心用刀库及加工中心 |
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| JP3537922B2 (ja) * | 1995-07-24 | 2004-06-14 | オークマ株式会社 | 工作機械における工具並べ換え方法及び装置 |
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| KR100418661B1 (ko) * | 2003-07-28 | 2004-02-14 | 주식회사 이원 | 엘씨 발진회로를 이용한 드로바유니트의 위치 감지기구 |
| JP4580846B2 (ja) * | 2005-08-26 | 2010-11-17 | ヤマザキマザック株式会社 | Nc工作機械 |
| KR100707376B1 (ko) * | 2005-12-29 | 2007-04-13 | 두산인프라코어 주식회사 | 이송속도 오버라이드 기능을 갖는 터렛 서보 제어장치 및방법 |
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2011
- 2011-12-26 KR KR1020110142825A patent/KR101856198B1/ko active Active
-
2012
- 2012-10-18 WO PCT/KR2012/008540 patent/WO2013100339A1/ko not_active Ceased
- 2012-10-18 CN CN201280064448.9A patent/CN104023908B/zh active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR950008029B1 (ko) * | 1989-09-04 | 1995-07-24 | 부라더 고교 가부시기가이샤 | 자동적으로 공구교환을 행하는 수치제어공작기계 |
| JPH05208332A (ja) * | 1991-04-08 | 1993-08-20 | Ott Mas Technik Gmbh | 工具切換器 |
| JPH0740171A (ja) * | 1993-07-23 | 1995-02-10 | Toshiba Corp | Nc工作機械およびその工具情報確認方法 |
| JP2004216526A (ja) * | 2003-01-16 | 2004-08-05 | Mori Seiki Co Ltd | 工具交換位置設定方法及び横形マシニングセンタ |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191310A (zh) * | 2014-08-11 | 2014-12-10 | 宁波海天精工股份有限公司 | 一种装有防撞换刀装置的数控加工中心及其使用方法 |
| CN106553074A (zh) * | 2015-09-30 | 2017-04-05 | Dmg森精机株式会社 | 工具更换装置 |
| CN106553074B (zh) * | 2015-09-30 | 2019-05-21 | Dmg森精机株式会社 | 工具更换装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101856198B1 (ko) | 2018-05-11 |
| KR20130074660A (ko) | 2013-07-04 |
| CN104023908A (zh) | 2014-09-03 |
| CN104023908B (zh) | 2019-06-11 |
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