WO2001053024A1 - Lathe with two-opposed spindles - Google Patents
Lathe with two-opposed spindles Download PDFInfo
- Publication number
- WO2001053024A1 WO2001053024A1 PCT/JP2001/000291 JP0100291W WO0153024A1 WO 2001053024 A1 WO2001053024 A1 WO 2001053024A1 JP 0100291 W JP0100291 W JP 0100291W WO 0153024 A1 WO0153024 A1 WO 0153024A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle
- tool
- axis
- machining
- work
- Prior art date
Links
- 238000003754 machining Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 description 5
- 241000208822 Lactuca Species 0.000 description 3
- 235000003228 Lactuca sativa Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/16—Turret lathes for turning individually-chucked workpieces
- B23B3/167—Turret lathes for turning individually-chucked workpieces lathe with two or more toolslides carrying turrets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/30—Turning-machines with two or more working-spindles, e.g. in fixed arrangement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2508—Lathe with tool turret
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2524—Multiple
Definitions
- the present invention relates to a two-spindle opposed multi-turret lathe provided with two spindles facing each other on the same axis, and a plurality of tool sets for working a workpiece in cooperation with these spindles. is there. Background art
- a two-spindle opposed lathe having two main shafts facing each other on the same axis is known.
- one end of a work is gripped and processed, so that the one end cannot be processed.
- the work being machined is transferred from one spindle to the other spindle on the same machine, and the ends gripped by the chucks of the mating spindles are processed with each other. be able to.
- the two-spindle opposed lathe with multiple tool sets allows different work to be performed in parallel on the work held on one spindle and the work held on the other spindle, resulting in improved machining efficiency. improves. It is also possible to attach rotating tools such as drills and milling cutters, tail stocks, support rollers that support the peripheral surface of the work, etc. to the tool set. By mounting, a wide range of processing can be performed on the work.
- the combination of multiple sets in a conventional two-spindle opposed lathe is Evening lettuce and two main spindles and three evening lettuce.
- the two-spindle, two-head lathe has a structure in which one tool knurl is provided for machining a workpiece in cooperation with each of the two main spindles.
- This type of lathe is used to machine one workpiece gripped on one spindle by using two tool sets, for example, a tail rest mounted on a tool set that cooperates with the other spindle. It is possible to perform turning while holding the anti-chucking side of the work with the tack, but when performing such processing, it is not possible to machine the work with the other spindle.
- the two-spindle three-turn lathe is usually movable from the position where the third spindle is used for machining the workpiece of the first spindle to the position where the workpiece is machined for the second spindle.
- workpieces can be machined when needed, in cooperation with two evening labels. Therefore, for example, if the outer and inner diameters of a workpiece are simultaneously processed using two spindles on one spindle while turning or drilling the workpiece gripped by the other spindle, Such an operation is possible.
- a workpiece gripped by one spindle is machined using two tool sets, the workpiece can be cut at two opposing positions across the spindle axis to balance the machining reaction force applied to the workpiece. Can be processed.
- processing in various forms such as processing of a shaft material using a tail stock attached to one of the sets, and simultaneous processing of the outer diameter and the inner diameter.
- machining efficiency is also improved.
- the present invention provides a multi-spindle type two-spindle opposing lathe that can more efficiently process a workpiece. Further, the present invention provides a rational structure that enables the tool to be moved and positioned in a direction (Y axis) orthogonal to both the main axis direction (Z axis) and the cutting direction of the tool (X axis). Economically enables a wider range of processing.
- a two-spindle opposed lathe includes a first main spindle 2 and a second main spindle 4 which is movable on the axis of the first main spindle in the axial direction and is positioned so as to be movable.
- the two tool sets of each set are arranged on the lower front side and the upper rear side opposite to each other with the main shaft axis B interposed therebetween.
- all four sets of two tools be mounted on a tool rest that can be moved and positioned in the Z-axis and X-axis directions.
- all of these four tool sets can be moved independently from the position where the work gripped by the first spindle is processed to the position where the work gripped by the second spindle is processed. It is preferred to provide.
- At least one of the two sets of opposed tool sets shall be equipped with a drive for rotating tools such as drills and milling cutters.
- the second spindle 4 and the first spindle which cannot be moved in the spindle axis direction, are viewed from the operator on the same base.
- One of each of the two tool turrets cooperating with each of the spindles is arranged above the back side of the spindle axis B, and the other one is arranged below the front side of the spindle axis. All of these four tool sets are mounted so that they can be moved and positioned in the direction of the spindle and at right angles to the spindle.
- a two-spindle opposed lathe having a further preferred structure of the present invention includes a Y-axis movement positioning device for a tool turret disposed above the back side of the main shaft axis B, and the back side tool rest is a rotary tool.
- This is a structure equipped with a driving device.
- the tool set located below and below the spindle axis B is not provided with a Y-axis movement positioning device.
- FIG. 1 is a view schematically showing one embodiment of a two-spindle opposed lathe according to the present invention, and is a view as seen from the direction of arrow C in FIG.
- FIG. 2 is a side view of the lathe of FIG.
- FIG. 3 is a perspective view of the tool rest of the lathe of FIG.
- FIGS. 4 to 7 are schematic views of examples of processing using the lathe of the above embodiment, as viewed from the direction of arrow C in FIG.
- reference numeral 2 is the first spindle
- 4 is the second spindle
- 7 is the bead
- 8a to 8d are the tool set
- 9 is the spindle guide
- 11a and 11c are the Z axis.
- Guides, 12a to 12d are X-axis guides
- 14 is a Y-axis guide
- A is a machining area
- B is a spindle axis.
- the first headstock 1 is a fixed headstock whose position in the spindle direction (Z-axis direction) is fixed, and the first spindle 2 rotates at a high speed and a low speed ⁇ torque rotates on the first headstock. And it is pivotally supported so as to be indexable.
- This A second spindle 4 supported by a second headstock 3 is disposed on the same spindle axis B as opposed to the first spindle 2.
- the second headstock 3 can be moved and positioned in a direction close to and away from the first spindle 2 along a spindle guide 9 provided on the bed 7.
- the second spindle 4 can rotate at high speed, rotate at low torque with high torque, and index an angle by a driving motor (not shown).
- a first chuck 5 and a second chuck 6 are mounted on opposite ends of the first spindle 2 and the second spindle 4, respectively.
- the first main spindle 2 and the second main spindle 4 are arranged on both left and right sides of the machining area A as viewed from the operator.
- the bed 7 is a so-called slant type in which the operator side is inclined in a lower direction.
- a front-side Z-axis guide 11a and a rear-side Z-axis guide 11c are arranged in parallel with the main shaft axis B on the front and rear sides sandwiching the main shaft of the bed. Because the bed 7 is a slant type, the front Z-axis guide 11a is located at the front lower side when viewed from the operet of the spindle axis B, and the rear Z-axis guide 11c is located at the rear upper side. Located in.
- Slide bases 25a, 25b, 25c and 25d on the first and second spindle sides are slidable to the left and right of each Z-axis guide 11a and 11c. It is installed.
- Two Z feed screws 26a, 26b, 26c and 26d are provided to support the bed 7 in parallel with each Z axis guide 1 la and 1 lc.
- the Z feed screws 27a, 27b, 27c, and 27d are connected to the shaft end of each Z feed screw.
- the four Z feed screws 26a, 26b, 26c, 26d are screwed into the slide tables 25a, 25b, 25c, 25d, respectively.
- Each slide base has an X-axis guide 1 2a, 1 2b, 1 2c, 1 2d, and an X feed screw 36a, 36b, 36c parallel to these X-axis guides. , 3 6d and X feed motors 37a, 37b, 37c, 37d connected to the shaft end of each X feed screw are provided.
- the turrets 13a and 13b are movably mounted on the X-axis guides 12a and 12b of the front slide pedestal. It is screwed to a, 36b.
- the X slide guides 35c and 35d are movably mounted on the X-axis guides 1 2c and 1 2d of the rear slide base. Screwed to screws 36c and 36d.
- the X-slide tables 35c and 35d have an L-shaped side surface.
- Each X-slide table has Y-axis guides 14c and 14d, parallel to these Y-axis guides ⁇ Lead screws 46c and 46d, and the end of each Y-feed screw A combined Y-feed module 47c and 47d is provided.
- the turrets 13c and 13d are mounted on the Y-axis guides 14c and 14d of each X-slide unit, and each turret has its own Y feed screw 46c It is screwed to 4 6d.
- the four turrets mounted as described above are equipped with the tool sets 8a, 8b, 8c, and 8d, respectively.
- the front toollets 8a and 8b on the near side are located below the spindle axis B, and can be moved and positioned in the Z-axis direction and the X-axis direction.
- the farther evening sunsets 8c, 8d are above the spindle axis B and can be moved and positioned in the Z, X and Y axes.
- the slide tables 25a, 25b, 25c, and 25d process the workpiece 15a on which the tool spindles 8b and 8d on the second spindle are gripped by the first spindle. Therefore, when moving to the first spindle side, the slide tables 25a and 25c on the first spindle side can be retracted from the machining area A, and the tool sets 8a and 8c on the first spindle side To process the workpiece 15b gripped by the second spindle, The slide tables 25b and 25d on the second spindle side are provided with a length that can be retracted from the machining area when moving to the two spindle side.
- the basic work processing operation of the two-spindle opposed lathe configured as described above is as follows.
- it is machined using the blades and tail stock attached to the two tool sets 8a and 8c on the first spindle side.
- the second spindle 4 moves to the first spindle, and the second chuck 6 grips the machined end of the workpiece.
- the first chuck 5 is opened, or the first spindle and the second spindle are synchronously rotated to cut off the work with a cut-off byte, and then the second headstock 3 is separated from the first headstock 1.
- the work is transferred to the second spindle side.
- the workpiece is machined by using a blade, a tail stock, etc. mounted on the tool set 8b, 8 on the second spindle side.
- the next workpiece is loaded on the first spindle, and the first and second spindles cooperate with a set of two tool sets each.
- the workpiece is processed.
- FIG. 4 to FIG. 7 schematically show examples of processing by the lathe of the present invention.
- the workpiece 15a on the first spindle side is balanced by the outer diameter machining bytes 16a and 16c attached to the tool spindles 8a and 8c on the first spindle side.
- the workpiece 15b on the second spindle side is made up of the outer diameter machining byte 16d and the inner diameter machining byte 17 mounted on the tool spindles 8b and 8d on the second spindle side.
- the inner and outer diameters are machined simultaneously.
- the tool is advanced from both sides sandwiching the spindle axis B to perform processing. By doing so, it is possible to balance the processing reaction force acting on the work, prevent deformation of the work when performing heavy cutting, and avoid a reduction in processing accuracy and occurrence of chatter vibration.
- the end of the work on the first spindle side on the opposite side to the chuck side is held by the tail stock 21 attached to one of the tool sets 8a on the first spindle side, while the other end is held.
- the work is carried out by the tool 16c mounted on the set 8c of the second spindle, and the work 15b on the second spindle is supported by the support roller mounted on the tool 8b on the second spindle. While the peripheral surface of the work is supported by 22, machining is carried out with the tool 16 d mounted on the other tool set 8 d.
- the workpiece 15a on the first spindle is machined by the tool 16b mounted on one of the tool sets 8b on the second spindle.
- Work 15b is machined with the tool 16c mounted on one of the tool spindles 8c on the first spindle side.
- the other tool sets 8a and 8d on the first and second spindle sides are retracted at the ends of the Z-axis guides lla and 11c.
- Such machining generally reduces machining efficiency, but is effective when there are many types of tools required for machining.
- the elongated workpiece 15 gripped at both ends by the first spindle and the second spindle is an outer diameter evacuator attached to the tool spindles 8b and 8d on the second spindle. 16b and 16d have been balanced, and the first spindle side fixtures 8a and 8c are retracted at the ends of the Z-axis guides 11a and 11c.
- Such processing is effective when it is desired to perform smooth processing without leaving a trace of the blade from the end of the elongated work to the opposite end.
- both the first spindle and the second spindle use a work support member such as a tail stock or support roller mounted on one of the tool sets. If the workpiece is machined with the tool attached to the other tool set while supporting the shaft, machining of the shaft material, which is longer than the diameter, can be performed on both the first and second spindle sides. It is possible to perform the processing in parallel at the same time, and it is possible to improve the processing efficiency when processing the shaft material.
- machining efficiency is improved and balance machining is achieved. By doing so, heavy cutting can be performed, further improving machining efficiency.
- the structure in which the first headstock 1 is provided at a fixed position can increase the rigidity of the first spindle side, so that roughing is performed on the first spindle side, and It is possible to perform the finishing process, which is a rational process that matches the work delivery order.
- the structure in which all four tool sets can be moved independently in the spindle direction and in the direction perpendicular to the spindle using a CNC device increases the degree of freedom of machining, improves machining efficiency, and facilitates control. Excellent in point.
- the Y-axis movement of the tool The structure made possible is to mount a rotary tool such as a drill and a milling cutter on the back side of the tool bar to enable complicated machining similar to a machining center.
- a rotary tool such as a drill and a milling cutter
- the Y-axis moving device is located at the back of the machine, the operability of the operator in the processing area can be secured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01901416.6A EP1256405B2 (en) | 2000-01-18 | 2001-01-18 | Lathe with two-opposed spindles |
JP2001553061A JP4681191B2 (ja) | 2000-01-18 | 2001-01-18 | 2主軸対向旋盤 |
US10/181,155 US6640678B2 (en) | 2000-01-18 | 2001-01-18 | Lathe with two-opposed spindles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-9206 | 2000-01-18 | ||
JP2000009206 | 2000-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001053024A1 true WO2001053024A1 (en) | 2001-07-26 |
Family
ID=18537381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/000291 WO2001053024A1 (en) | 2000-01-18 | 2001-01-18 | Lathe with two-opposed spindles |
Country Status (4)
Country | Link |
---|---|
US (1) | US6640678B2 (ja) |
EP (1) | EP1256405B2 (ja) |
JP (1) | JP4681191B2 (ja) |
WO (1) | WO2001053024A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005238379A (ja) * | 2004-02-26 | 2005-09-08 | Star Micronics Co Ltd | 工作機械とnc自動旋盤 |
JP2007160461A (ja) * | 2005-12-13 | 2007-06-28 | Nakamura Tome Precision Ind Co Ltd | 2主軸対向旋盤 |
JP2019536646A (ja) * | 2016-11-25 | 2019-12-19 | エンジンガー ゲーエムベーハー | 旋削加工機およびワークピースの旋削方法 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020079022A1 (en) * | 2000-12-27 | 2002-06-27 | Colle Paolo M. | Machining systems and methods for forming non-metallic parts |
DE10245071B4 (de) * | 2002-09-27 | 2006-08-24 | Niles-Simmons Industrieanlagen Gmbh | Maschine zum Schruppen und Schlichten der Lagerzapfen von Kurbelwellen |
JP2005111631A (ja) * | 2003-10-09 | 2005-04-28 | Star Micronics Co Ltd | Nc自動旋盤 |
WO2005050804A2 (en) * | 2003-11-13 | 2005-06-02 | Danaher Motion | Low voltage electronic motor wire termination |
US20060207396A1 (en) * | 2004-12-22 | 2006-09-21 | Mori Seiki Co., Ltd. | Lathe, and Machining System Equipped with the Lathe |
US20060207397A1 (en) * | 2004-12-28 | 2006-09-21 | Mori Seiki Co., Ltd. | Lathe, and Machining System Equipped with the Lathe |
WO2008144603A1 (en) * | 2007-05-17 | 2008-11-27 | Miyano Steven S | Computer controlled machine tool assembly with multiple tail units |
DE102009039752B4 (de) * | 2009-09-02 | 2018-10-25 | Gleason-Pfauter Maschinenfabrik Gmbh | Anordnung zum Aufspannen eines Bearbeitungswerkzeugs in einer Werkzeugmaschine |
TW201343284A (zh) * | 2012-04-23 | 2013-11-01 | Alex Tech Machinery Ind Co Ltd | 工具機深孔加工的複合式尾座裝置 |
ITPD20130149A1 (it) * | 2013-05-27 | 2014-11-28 | Promac Srl | Macchine a controllo numerico con piano di lavoro migliorato |
CN106470785B (zh) * | 2014-06-30 | 2019-01-15 | 西铁城时计株式会社 | 机床及工件加工系统 |
JP6459288B2 (ja) * | 2014-08-07 | 2019-01-30 | スター精密株式会社 | 刃物台を備えた工作機械 |
CN105345031A (zh) * | 2015-12-11 | 2016-02-24 | 重庆志成机械有限公司 | 一种刀具可移动的车削机床 |
JP7156897B2 (ja) * | 2018-10-10 | 2022-10-19 | シチズン時計株式会社 | 工作機械 |
JP7262201B2 (ja) * | 2018-10-15 | 2023-04-21 | オークマ株式会社 | 冷却液供給装置 |
CN109834298A (zh) * | 2019-03-26 | 2019-06-04 | 中信戴卡股份有限公司 | 一种车轮机加工设备 |
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2001
- 2001-01-18 EP EP01901416.6A patent/EP1256405B2/en not_active Expired - Lifetime
- 2001-01-18 JP JP2001553061A patent/JP4681191B2/ja not_active Expired - Fee Related
- 2001-01-18 US US10/181,155 patent/US6640678B2/en not_active Expired - Lifetime
- 2001-01-18 WO PCT/JP2001/000291 patent/WO2001053024A1/ja active Application Filing
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JPH04129645A (ja) * | 1990-09-19 | 1992-04-30 | Hitachi Seiki Co Ltd | 数値制御旋盤の同時加工方法 |
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JPH11347801A (ja) * | 1998-06-05 | 1999-12-21 | Okuma Corp | 旋盤及び旋削加工方法 |
Non-Patent Citations (1)
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See also references of EP1256405A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005238379A (ja) * | 2004-02-26 | 2005-09-08 | Star Micronics Co Ltd | 工作機械とnc自動旋盤 |
JP2007160461A (ja) * | 2005-12-13 | 2007-06-28 | Nakamura Tome Precision Ind Co Ltd | 2主軸対向旋盤 |
JP2019536646A (ja) * | 2016-11-25 | 2019-12-19 | エンジンガー ゲーエムベーハー | 旋削加工機およびワークピースの旋削方法 |
JP7193209B2 (ja) | 2016-11-25 | 2022-12-20 | エンジンガー ゲーエムベーハー | 旋削加工機およびワークピースの旋削方法 |
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JPWO2001053024A1 (ja) | 2004-04-15 |
US6640678B2 (en) | 2003-11-04 |
JP4681191B2 (ja) | 2011-05-11 |
EP1256405A1 (en) | 2002-11-13 |
EP1256405B1 (en) | 2011-08-10 |
EP1256405A4 (en) | 2009-11-18 |
US20030029286A1 (en) | 2003-02-13 |
EP1256405B2 (en) | 2014-11-26 |
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