WO2006033314A1 - 端部加工装置及び管製造方法 - Google Patents
端部加工装置及び管製造方法 Download PDFInfo
- Publication number
- WO2006033314A1 WO2006033314A1 PCT/JP2005/017248 JP2005017248W WO2006033314A1 WO 2006033314 A1 WO2006033314 A1 WO 2006033314A1 JP 2005017248 W JP2005017248 W JP 2005017248W WO 2006033314 A1 WO2006033314 A1 WO 2006033314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil well
- well pipe
- support
- pipe
- workpiece
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/22—Machines specially designed for operating on pipes or tubes
- B23G1/225—Machines specially designed for operating on pipes or tubes automatically controlled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/08—Arrangements for reducing vibrations in feeding-passages or for damping noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/84—Steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/33—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G2210/00—Details of threads produced
- B23G2210/08—External threads
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49995—Shaping one-piece blank by removing material
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5109—Lathe
- Y10T29/5114—Lathe and tool
Definitions
- the present invention relates to an end processing apparatus and a pipe manufacturing method for checking a screw or the like at an end of a long member such as a steel pipe.
- the present invention relates to an end processing apparatus that processes a threaded joint at the end of an oil well pipe, and a pipe manufacturing method using the end processing apparatus.
- Fig. 4 which is an explanatory view of the state of threading
- the threading of the end of a steel pipe is performed by attaching a steel pipe P fixed by a chuck 1 to the vicinity of the pipe end to be threaded. While rotating by rotation, the cutting tool 2 disposed so that its relative position to the steel pipe P can be controlled is brought into contact with the end portion thereof.
- the oil well pipe is about 10m long.
- tubing that has an outer diameter of 114 mm or less.
- the thread cover for the threaded joint to the end of the oil well pipe is cut while rotating the oil well pipe at high speed. Since such a long and thin oil well pipe has a slight bend in the longitudinal direction, vibration occurs when the steel pipe is rotated at a high speed in the screw caulking process.
- the support roller group shown in Fig. 5 is in a state where it overlaps in the vertical direction on both the left and right sides (hereinafter referred to as "both sides of the workpiece") with respect to the cross section including the axis perpendicular to the longitudinal axis of the steel pipe P. It is composed of four support rollers 3a to 3d, each of which is arranged with two pieces shifted in the axial direction of the steel pipe P.
- these four support rollers 3a to 3d are moved toward and away from the steel pipe P in synchronism with 3a, 3b and 3c, 3d, for example, two on the left and right, respectively, by the cylinder device 4, for example. Restrain steel pipe P.
- the four support rollers 3 a to 3 d have springs 5 interposed between the support rollers 3 a to 3 d and pressed against the steel pipe P. Indicates what can be followed.
- the support roller groups 3A to 3D shown in FIG. 5 cause the left and right support rollers 3a, 3b and 3c, 3d to move in contact with and away from the steel pipe P in synchronization. For this reason, depending on the amount of bending of the steel pipe P, the steel pipe P cannot be restrained unless the steel pipe P is sandwiched quite strongly. This force of pinching the steel plate promotes the vibration of the steel pipe P due to the ellipse and flatness despite the presence of the spring 5. In other words, the vibration during rotation caused by the bending of the steel pipe cannot be suppressed sufficiently.
- Patent Document 1 As shown in Fig. 6, support roller groups 3A to 3D for supporting a steel pipe P with a downward force by a pair of support rollers 3a and 3b arranged at appropriate intervals.
- the support base of the support roller group 3C that supports the minimum part of the rotational runout caused by the bending of the steel pipe P is fixed, and the support bases of the other support roller groups 3A, 3B, 3D are used for the runout of the steel pipe P.
- An invention has been disclosed in which it is movably arranged using hydraulic pressure so that it can follow.
- Patent Document 1 Japanese Patent Laid-Open No. 6-182603
- the support base of the support roller group is caused to follow the vibration of the pipe by the hydraulic pressure, so that the response of the follow-up is poor. Furthermore, the support performance of the support roller group that supports the steel pipe from below with a pair of support rollers is also poor. Therefore, if the cutting speed was increased to improve the workability, the support roller group could not follow the vibration of the pipe, and it was not possible to improve production and cache accuracy.
- the present invention relates to a rotatable chuck that holds the vicinity of one end of a workpiece, and one end of a workpiece that is disposed near the chuck and rotates with the chuck. Machining that can control the relative position of one end of the to-be-forced material that is subjected to predetermined machining. It has a tool and a support device that supports the other end of the rotating work material following the work material, and this support device is paired with two upper and lower parts arranged on both sides of the work material. End support device comprising: four support rollers that form a pair, and an air cylinder that individually moves the support rollers, which form a pair of upper and lower pairs, as a unit with respect to the workpiece. It is. With this end processing device, it is possible to achieve a high level of both productivity and accuracy when threading a threaded joint of an oil well pipe having a metal seal whose processing accuracy is strict.
- the present invention is a pipe manufacturing method including a step of processing an end portion of a pipe using the end portion processing apparatus.
- the upper and lower support rollers arranged on both sides of the force-bearing material are individually moved toward and away from the work material individually by the air cylinder. Therefore, the workpiece can be supported with an optimum force and can follow the deflection of the workpiece even when rotated at high speed. As a result, even when the rotational speed is increased and productivity is improved, the vibration of the material to be supported does not propagate to the machined part, and good machining accuracy can be maintained. Accuracy can be achieved at a high level.
- FIG. 1 is a schematic view showing the whole of an end part processing apparatus according to the present invention.
- FIG. 2 is a view for explaining a support device constituting the end machining apparatus according to the present invention
- FIG. 2 (a) is a front view
- FIG. 2 (b) is a plan view.
- FIG. 3 An explanatory diagram showing the positional relationship between the oil well pipe and the support roller.
- Fig. 3 (a) shows the case of the oil pipe with the maximum diameter
- Fig. 3 (b) shows the oil well pipe with the minimum diameter. Show the case.
- FIG. 4 is an explanatory view showing a conventional edge processing apparatus.
- FIG. 5 is an explanatory view showing an example of a group of support rollers used in a conventional edge processing apparatus.
- 6 is an explanatory view showing the invention disclosed in Patent Document 1
- FIG. 6 (a) is an overall view
- FIG. 6 (b) is a schematic view of a support roller group.
- FIG. 1 is a schematic view showing the entire end machining apparatus 11 according to the present invention.
- 2A and 2B are diagrams for explaining a supporting device that constitutes the end portion processing device 11, in which FIG. 2A is a front view and FIG. 2B is a plan view.
- Fig. 3 is an explanatory diagram showing the positional relationship between the oil well pipe and the support roller.
- Fig. 3 (a) shows the case of an oil well pipe with a large diameter
- Fig. 3 (b) shows the oil well with a small diameter. The case of a tube is shown.
- the oil well pipe LP subjected to end processing by the end processing apparatus 11 is manufactured through a normal manufacturing process, that is, a drawing rolling process and a constant diameter rolling process.
- the end processing apparatus 11 is arranged in series with the chuck 12 provided in a thread cutting machine for cutting a predetermined screw at one end of the oil well pipe LP, and at least the oil well pipe.
- four sets of support devices 13— :! to 13—4 that support the end of the other side of the LP are provided.
- 1 to 20 support devices 13 are usually arranged in the longitudinal direction of the oil well pipe LP.
- the support devices 13-1 to 13-4 include, for example, four support rollers 13a to 13d that are paired in two on the upper and lower sides arranged on both sides of the oil well pipe LP. .
- the roll outer diameter d and the roll spacing L of the pair of support rollers 13a, 13b and 13c, 13d arranged above and below are not particularly limited.
- Fig. 3 whether the oil well pipe LP to be threaded by the threading machine has the maximum diameter (see Fig. 3 (a)) or the minimum diameter (see Fig. 3 (b)),
- the roll outer diameter d and roll interval L are set in advance so that the four support rollers 13a to 13d from both sides can be reliably supported by 13d.
- the ratio of the roll outer diameter d and the roll interval L (dZL) is preferably 0.5 or more and 0.98 or less. If the ratio (dZL) is less than 0.5, the force will not be transferred to the oil well pipe LP and the support will be insufficient. In addition, since the support rolls are arranged on the same plane, the ratio (d / L) is originally less than 1, but it should be 0.98 or less in consideration of the clearance.
- Table 1 An example of the roll outer diameter d and roll interval L of the support roller is shown in Table 1 below.
- the support rollers 13a, 13b and 13c, 13d which form a pair of the upper and lower parts, are moved by air cylinders 13e, 13f that can be moved in and out for a predetermined distance (support stroke) by applying a predetermined pressure. As a whole, each is held so as to move individually toward and away from the well pipe LP.
- the force applied to the support roller is 1500N or more and 14000N or less, preferably 4000N or more and 6000N or less, for the left and right pair. If this holding power is too weak, This is because the LP is not sufficiently held, but if it is too high, it will resist the rotation of the oil well pipe LP, leading to a reduction in the cutting speed. Needless to say, the larger the diameter of the oil well pipe LP, the greater the required holding force.
- the support rollers 13a, 13b and 13c, 13d are not moved by the air cylinders 13e, 13f, but moved and separated by hydraulic pressure or screws. Move it toward and away. For this reason, even when the machining speed is increased and the productivity is improved, the support rollers 13a, 13b and 13c, 13d can follow the bending force, ellipse, and flatness of the oil well pipe LP with a quick response. Therefore, it is possible to effectively suppress the vibration due to the bending, ellipse, and flatness of the oil well pipe LP from propagating to the processed portion.
- the material for forming the support rollers 13a to 13d is not particularly limited. However, if the support rollers 13a to 13d are formed of an elastic body such as rubber, it is desirable that the oil well pipe LP does not have a wrinkle. Examples of the elastic body in this case include natural rubber and synthetic rubber, and the material can be appropriately changed, but the hardness HS is 60 to 100, preferably 80 to 90. If the HS is less than 60, the support roller will bend and the support of the oil well pipe LP will be insufficient. On the other hand, if it exceeds 100, the vibration of the oil well pipe LP cannot be absorbed and the vibration may be promoted in reverse. .
- the above-described present invention is not limited to an apparatus that performs thread cutting on an end portion of an oil well pipe, and can be applied to any processing apparatus as long as the end portion of a long pipe material is covered.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006536372A JPWO2006033314A1 (ja) | 2004-09-24 | 2005-09-20 | 端部加工装置及び管製造方法 |
EP05785958A EP1800778A1 (en) | 2004-09-24 | 2005-09-20 | End face working device and tube manufacturing method |
US11/723,990 US20070245540A1 (en) | 2004-09-24 | 2007-03-23 | End portion machining apparatus and method of manufacturing a tubular good therewith |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-277368 | 2004-09-24 | ||
JP2004277368 | 2004-09-24 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/723,990 Continuation US20070245540A1 (en) | 2004-09-24 | 2007-03-23 | End portion machining apparatus and method of manufacturing a tubular good therewith |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006033314A1 true WO2006033314A1 (ja) | 2006-03-30 |
Family
ID=36090073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/017248 WO2006033314A1 (ja) | 2004-09-24 | 2005-09-20 | 端部加工装置及び管製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070245540A1 (ja) |
EP (1) | EP1800778A1 (ja) |
JP (1) | JPWO2006033314A1 (ja) |
CN (1) | CN101027152A (ja) |
WO (1) | WO2006033314A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108748365A (zh) * | 2018-08-22 | 2018-11-06 | 佛山市宏石激光技术有限公司 | 一种托料装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101704115B (zh) * | 2009-10-12 | 2012-08-22 | 大连科德数控有限公司 | 基于棒料送料装置的自动加工轴承用圆柱滚子的数控车床 |
CN103894628B (zh) * | 2013-12-20 | 2016-08-31 | 浙江吉利罗佑发动机有限公司 | 轴套内油槽加工装置及其加工方法 |
CN103934516B (zh) * | 2014-04-23 | 2016-08-24 | 吕江源 | 一种加工具有内螺纹部件的一体机 |
SE540321C2 (sv) * | 2016-10-06 | 2018-06-19 | Ab Ledarskruv | Tillverkning av skruvstänger och skarvframställning och en maskin för tillverkning av dessa |
CH715866A1 (fr) * | 2019-02-19 | 2020-08-31 | Tornos Sa | Guide-barre. |
CN109732116B (zh) * | 2019-03-19 | 2020-07-17 | 黄石华旦机械制造有限公司 | 一种双轴双头钻孔装置 |
EP3925730B1 (en) * | 2019-06-25 | 2022-09-07 | Yamazaki Mazak Corporation | Workpiece supporting device, unloading device, loading device and long workpiece machining device |
CN115056003B (zh) * | 2022-08-01 | 2023-10-13 | 南京苏元数控机床有限公司 | 一种用于精密机床生产加工用固定机构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS4942586U (ja) * | 1972-07-19 | 1974-04-15 | ||
JPS5537219A (en) * | 1978-08-30 | 1980-03-15 | Hitachi Seiki Co Ltd | Bar support device with vibration preventive construction |
JPS57201151A (en) * | 1981-05-28 | 1982-12-09 | Kyoritsu Denki Seisakusho:Kk | Cutting method with turning |
JPH06182603A (ja) * | 1992-12-21 | 1994-07-05 | Kawasaki Steel Corp | 管回転式管端加工方法及び装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US2162187A (en) * | 1938-07-18 | 1939-06-13 | James H Tharp | Grinding or honing machine |
US2747275A (en) * | 1955-07-29 | 1956-05-29 | Reed Mfg Co | Pipe cutter |
US3021736A (en) * | 1957-12-06 | 1962-02-20 | Blaw Knox Co | Mandrel bar steadier |
FR1589103A (ja) * | 1968-08-01 | 1970-03-23 | ||
US3911768A (en) * | 1974-08-16 | 1975-10-14 | American Tara Corp | Core cutting apparatus |
FR2533476B1 (fr) * | 1982-09-29 | 1986-06-06 | Pont A Mousson | Dispositif pour tronconner et chanfreiner des pieces tubulaires rigides, notamment a section ovalisee |
US4566358A (en) * | 1984-03-16 | 1986-01-28 | Paul Ducanis | Bar stock guide arrangement for screw machines |
FR2565520B1 (fr) * | 1984-06-08 | 1986-09-05 | Sireix Georges | Dispositif de coupe automatique des tubes en carton et autres |
US4671150A (en) * | 1985-03-04 | 1987-06-09 | Phillips Petroleum Company | Apparatus and method for cutting pipe into small pieces |
US4802278A (en) * | 1987-08-06 | 1989-02-07 | Tri Tool, Inc. | Gear driven tube cutter |
DE8817200U1 (de) * | 1988-03-18 | 1994-03-03 | Hoesch Maschinenfabrik Ag | Drehmaschine zur Bearbeitung eines aus einem Schienenfahrzeug ausgebauten Radsatzes |
US5343934A (en) * | 1993-02-01 | 1994-09-06 | Southwire Company | Multiple pinch roll apparatus and method for advancing a continuous rod |
US5458031A (en) * | 1993-11-23 | 1995-10-17 | Coiltech Corporation | Core cutter |
US5528830A (en) * | 1994-02-18 | 1996-06-25 | Hansen; Fredrick M. | Rotary cutting tool for tubing, conduit and the like |
JP4107073B2 (ja) * | 2002-12-04 | 2008-06-25 | 住友金属工業株式会社 | 端部加工装置 |
US7398716B2 (en) * | 2003-02-20 | 2008-07-15 | John Quigley | Method and apparatus for processing a tube |
-
2005
- 2005-09-20 CN CNA2005800323011A patent/CN101027152A/zh active Pending
- 2005-09-20 EP EP05785958A patent/EP1800778A1/en not_active Withdrawn
- 2005-09-20 JP JP2006536372A patent/JPWO2006033314A1/ja active Pending
- 2005-09-20 WO PCT/JP2005/017248 patent/WO2006033314A1/ja active Application Filing
-
2007
- 2007-03-23 US US11/723,990 patent/US20070245540A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4942586U (ja) * | 1972-07-19 | 1974-04-15 | ||
JPS5537219A (en) * | 1978-08-30 | 1980-03-15 | Hitachi Seiki Co Ltd | Bar support device with vibration preventive construction |
JPS57201151A (en) * | 1981-05-28 | 1982-12-09 | Kyoritsu Denki Seisakusho:Kk | Cutting method with turning |
JPH06182603A (ja) * | 1992-12-21 | 1994-07-05 | Kawasaki Steel Corp | 管回転式管端加工方法及び装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108748365A (zh) * | 2018-08-22 | 2018-11-06 | 佛山市宏石激光技术有限公司 | 一种托料装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006033314A1 (ja) | 2008-05-15 |
US20070245540A1 (en) | 2007-10-25 |
EP1800778A1 (en) | 2007-06-27 |
CN101027152A (zh) | 2007-08-29 |
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