CN101690979A - Finish machining equipment for inner bore of bent pipe of main pipe line of primary loop in AP1000 nuclear power technology - Google Patents
Finish machining equipment for inner bore of bent pipe of main pipe line of primary loop in AP1000 nuclear power technology Download PDFInfo
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- CN101690979A CN101690979A CN200910210449A CN200910210449A CN101690979A CN 101690979 A CN101690979 A CN 101690979A CN 200910210449 A CN200910210449 A CN 200910210449A CN 200910210449 A CN200910210449 A CN 200910210449A CN 101690979 A CN101690979 A CN 101690979A
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Abstract
The invention discloses finish machining equipment for an inner bore of a bent pipe of a main pipe line of a primary loop in AP1000 nuclear power technology. A lathe bed (9) is provided with a mechanical slide carriage (10) which is provided with an upright post (1); the upright post (1) is fixedly provided with a straight boring rod (2); the front end of the straight boring rod (2) is hinged with a boring power head (4) through a coupling mechanism (3); a workbench lathe bed (6) is provided with a workbench slide carriage (5) in a sliding mode; the workbench lathe bed (6) is in transmission connection with the workbench slide carriage (5) through a ball screw; and the ball screw is in transmission connection with a W-axis stepper motor (7). By the linkage of an X-axis, the W-axis and a B-axis, namely the horizontal movement in X and Z directions, the boring power head rotates around a coupling shaft at the same time. A cutting plane of a tool nose of the boring power head is controlled to be along the radial direction of a circular arc of the bent pipe all the time through the triaxial linkage so as to achieve the cutting at a predetermined angle. The finish machining of the bent pipe in the main pipe line of the primary loop in the AP1000 nuclear power technology after bending is realized.
Description
(1), technical field the present invention relates to a kind of bend pipe endoporus process equipment, particularly a kind ofly bends later finish machining equipment at AP1000 nuclear power technology one primary loop piping bend pipe.
(2), the AP1000 three generations of the US Westinghouse company nuclear power technology introduced of background technology China has moved with present China or added nuclear power technology in two generations that nuclear power station adopted of building or two generations has different significantly.AP1000 makes the reactor design simpler by unique Safety System Design, and reactor core damage probability can be ignored, and has improved the security and the reliability of nuclear power station; Carry out modularized design and construction, help improving Nuclear Power Station quality and standardization level; Be equipped with state-of-the-art totally digitilized instrument of industry and control system, make the operation of nuclear power station easier; In addition, bring up to 60 years by 40 years of present nuclear power station its service life.
Trunk line as the equipment of transmission reactor coolant, is called as " sustainer " in the nuclear island in nuclear island, belong to nuclear one-level equipment, has consequence in nuclear island.The AP1000 trunk line adopts monobloc forging formula structure stainless steel hammer welded pipe, comprises two circulation loops, and each loop comprises a hot arc (coupled reaction heap and steam generator) and two cold section (being connected steam generator and main pump).AP1000 forges trunk line and was different from for two generations fully and adds the casting trunk line that is adopted, owing to adopt solid forging and bend, has reduced weld seam quantity, can improve the security of trunk line greatly and reduce the inservice inspection workload.
Trunk line main technique flow process is: forging-machined-bend-fine finishining, the fine finishining after bending are maximum difficult points.Bend the rear arc endoporus and belong to elongated special-shaped enclosed cavity structure, universal machine tools can't be processed, if adopt the manual polishing process that adopts, then working environment, workload and cost are huge, length consuming time and be difficult to guarantee machining accuracy.
At the special machine process equipment of this kind bend pipe, do not see as yet at present at home, outward and publish or public offering.
(3), summary of the invention technical problem to be solved by this invention is to provide a kind of AP1000 nuclear power technology one primary loop piping bend pipe finish machining equipment for inner bore, the fine finishining after realization AP1000 nuclear power technology one primary loop piping bend pipe bends.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of AP1000 nuclear power technology one primary loop piping bend pipe finish machining equipment for inner bore, comprise lathe bed, it is characterized in that: being equipped with on the lathe bed can be along lathe bed Z to the mechanical slide that slides, and is equipped with on the mechanical slide to be in transmission connection with the X-axis stepper motor and can be along mechanical slide X to the column that slides; Be installed with straight boring bar on the column; The front end of straight boring bar is hinged with the boring unit head by coupling mechanism; Also comprise the workbench lathe bed, table saddle is installed on the workbench lathe bed slidably, be in transmission connection by ball-screw between workbench lathe bed and the table saddle, ball-screw and W shaft step motor are in transmission connection.
Described straight boring bar front end is equipped with the angular adjustment stepper motor, and intermeshing first spur gear, second spur gear and angular adjustment stepper motor are in transmission connection; Wherein first spur gear is connected with worm-drive, and the worm gear that cooperates with described worm screw is hinged by coupling spindle and boring unit head.
Good effect of the present invention is: (1), by the interlock of X, W and B axle, promptly X and Z are to horizontal movement, and the boring unit head rotates around coupling spindle simultaneously.All the time along the radial direction of bend pipe circular arc, finally realize set angle cutting by three-shaft linkage control boring unit head point of a knife cutting plane.Realized the fine finishining after AP1000 nuclear power technology one primary loop piping bend pipe bends.(2), the power of boring unit head 4 provides by hydraulic motor, can realize the low-speed big outputting power, and is simpler than the machine driven system structure, and therefore can alleviate dynamical system weight.(3), this equipment can use single-chip microcomputer or PLC to control, and only carries out the control of simple flat surface circular interpolation and boring unit head pivot angle, algorithm is simple, precision satisfies easily.
(4), description of drawings Fig. 1 is a complete machine structure schematic diagram of the present invention
Fig. 2 is the schematic diagram that shows annexation between boring unit head of the present invention and the straight boring bar.
(5), the specific embodiment further specifies the present invention below in conjunction with drawings and Examples.
With reference to Fig. 1, being equipped with on the lathe bed 9 of the present invention can be along lathe bed 9Z to the mechanical slide 10 that slides, and is equipped with on the mechanical slide 10 to be in transmission connection with X-axis stepper motor 8 and can be along mechanical slide 10X to the column 1 that slides.Straight boring bar 2 directly is fixed on the column 1, and straight boring bar 2 rear ends have balancing weight with laying particular stress on that balance long cantilever structure is brought.
With reference to figure 1,2, boring unit head 4 is hinged by coupling mechanism 3 and straight boring bar 2, and coupling mechanism 3 plays the effect of angle control simultaneously.Particularly, straight boring bar 2 front ends are equipped with angular adjustment stepper motor 3-4, and the intermeshing first spur gear 3-5, the second spur gear 3-6 and angular adjustment stepper motor 3-4 are in transmission connection.Wherein the first spur gear 3-5 and worm screw 3-3 are in transmission connection, and the worm gear 3-1 that cooperates with described worm screw 3-3 is hinged with boring unit head 4 by coupling spindle 3-2 (being defined as the B axle).
Angular adjustment stepper motor 3-4 drives worm screw 3-3 and then drives worm gear 3-1 by the intermeshing first spur gear 3-5, the second spur gear 3-6 and rotates, and realizes the precise angle calibration of boring unit head 4.The power of boring unit head 4 is provided by hydraulic motor, can realize the low-speed big outputting power, can design by simplified structure than machine driven system, alleviates dynamical system weight.
Still as Fig. 1, the present invention also comprises workbench lathe bed 6, and table saddle 5 is installed on workbench lathe bed 6 slidably, is in transmission connection by ball-screw between workbench lathe bed 6 and the table saddle 5, and ball-screw and W shaft step motor 7 are in transmission connection.
Workpiece (bend pipe) is installed on the table saddle 5 by special tooling, and by the ball-screw transmission, its power is provided by W shaft step motor 7 between workbench lathe bed 6 and the slide 5, realize workpiece at Z to precision positioning and feeding.The feeding of slide unit is defined as W axle (additional shaft of Z axle).
The course of work of the present invention is as follows: workpiece is installed on the table saddle 5, it is concentric with the point of a knife axis of rotation of boring unit head 4 to regulate the workpiece endoporus, column 1 drive straight boring bar 2 and boring unit head 4 realize Z to coarse positioning and X to precision positioning, table saddle 5 drives workpiece and realizes that Z is to precision positioning, after boring unit head 4 arrives and specifies the cutting start position, X, W and the interlock of B axle, promptly X and Z are to horizontal movement, and boring unit head 4 rotates around coupling spindle 3-2 simultaneously.Realize three-shaft linkage by control X, W and B axle, carry out circular interpolation, control boring unit head 4 point of a knife cutting planes reach the purpose of the set angle bend pipe of boring all the time along the cutting of bend pipe circular arc radial direction.
The present invention mainly is the machined that relies on boring unit head 4 to realize the bend pipe endoporus, have the fine-tuning cutter platform of step arrangement on the boring unit head 4, can realize the processing of thick fine finishining or polishing, boring unit head 4 is connected with straight boring bar 2 by articulated manner, on the straight boring bar 2 pivot angle controlling organization (B axle) is installed, pass through step motor control, can accurately control the pendulum angle of boring unit head, straight boring bar 2 is installed on the cross slid platform that has a stepper motor, can realize that X is to location and feeding, Z is controlled by hydraulic cylinder to feeding, and have " bowing " phenomenon that balance weight mechanism causes owing to big cantilever design with balance on the straight boring bar 2, workpiece be installed in can before and after on the workbench of feeding, the feeding of workbench is defined as W axle (Z is to additional shaft) by step motor control, can realize accurately location and feeding.
This machine can use single-chip microcomputer or PLC to control, and only carries out the control of simple flat surface circular interpolation and boring unit head pivot angle, and algorithm is simple, and precision satisfies easily.
Claims (2)
1. AP1000 nuclear power technology one primary loop piping bend pipe finish machining equipment for inner bore, comprise lathe bed (9), it is characterized in that: being equipped with on the lathe bed (9) can be along lathe bed (9) Z to the mechanical slide (10) that slides, and is equipped with on the mechanical slide (10) to be in transmission connection with X-axis stepper motor (8) and can be along mechanical slide (10) X to the column (1) that slides; Be installed with straight boring bar (2) on the column (1); The front end of straight boring bar (2) is hinged with boring unit head (4) by coupling mechanism (3); Also comprise workbench lathe bed (6), table saddle (5) is installed on workbench lathe bed (6) slidably, be in transmission connection by ball-screw between workbench lathe bed (6) and the table saddle (5), ball-screw and W shaft step motor (7) are in transmission connection.
2. AP1000 nuclear power technology one primary loop piping bend pipe finish machining equipment for inner bore as claimed in claim 1, it is characterized in that: described straight boring bar (2) front end is equipped with angular adjustment stepper motor (3-4), and intermeshing first spur gear (3-5), second spur gear (3-6) are in transmission connection with angular adjustment stepper motor (3-4); Wherein first spur gear (3-5) is in transmission connection with worm screw (3-3), and the worm gear (3-1) that cooperates with described worm screw (3-3) is hinged by coupling spindle (3-2) and boring unit head (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210449A CN101690979A (en) | 2009-11-03 | 2009-11-03 | Finish machining equipment for inner bore of bent pipe of main pipe line of primary loop in AP1000 nuclear power technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210449A CN101690979A (en) | 2009-11-03 | 2009-11-03 | Finish machining equipment for inner bore of bent pipe of main pipe line of primary loop in AP1000 nuclear power technology |
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| CN101690979A true CN101690979A (en) | 2010-04-07 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850431A (en) * | 2010-04-09 | 2010-10-06 | 四川三洲川化机核能设备制造有限公司 | Method and device for machining inner bending holes of main nuclear power pipeline bend on horizontal boring machine |
| CN102145391A (en) * | 2011-04-04 | 2011-08-10 | 兰州理工大学 | Boring spindle device |
| CN102166665A (en) * | 2010-12-23 | 2011-08-31 | 大连理工大学 | Five-axis NC (numerical control) milling method for internal surfaces of bent pipes |
| CN102201024A (en) * | 2011-06-29 | 2011-09-28 | 华东理工大学 | Method for determining process parameter of expanded connection between tube and tube plate of AP1000 nuclear power passive heat exchanger |
| CN102451976A (en) * | 2010-10-29 | 2012-05-16 | 上海重型机器厂有限公司 | Manufacturing method for hot arc bent pipe of AP1000 nuclear power main pipeline |
| CN103358135A (en) * | 2012-04-05 | 2013-10-23 | 中国石油天然气集团公司 | Workbench for groove machining of large-caliber hot bends |
| CN103506654A (en) * | 2013-10-11 | 2014-01-15 | 一重集团绍兴重型机床有限公司 | Mechanism for machining holes inside pipeline |
| CN103521803A (en) * | 2013-10-11 | 2014-01-22 | 一重集团绍兴重型机床有限公司 | Inner hole machining device of pipeline arc bend |
| CN104338987A (en) * | 2013-07-31 | 2015-02-11 | 野田金型有限会社 | Elbow manufacturing method, cutting tool, and elbow |
| CN107538053A (en) * | 2017-09-15 | 2018-01-05 | 西安航空职业技术学院 | A kind of circular arc elbow internal wall machining tool |
| CN108645337A (en) * | 2018-04-27 | 2018-10-12 | 北京理工大学 | A kind of depth inside pipe wall Surface Location Error on-line measurement and compensation method |
| CN109158648A (en) * | 2018-09-29 | 2019-01-08 | 严双喜 | It is a kind of for the bore hole sealing machine of curvature pipeline and its process flow |
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2009
- 2009-11-03 CN CN200910210449A patent/CN101690979A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850431B (en) * | 2010-04-09 | 2011-08-31 | 四川三洲川化机核能设备制造有限公司 | Method and device for machining inner bending holes of main nuclear power pipeline bend on horizontal boring machine |
| CN101850431A (en) * | 2010-04-09 | 2010-10-06 | 四川三洲川化机核能设备制造有限公司 | Method and device for machining inner bending holes of main nuclear power pipeline bend on horizontal boring machine |
| CN102451976B (en) * | 2010-10-29 | 2013-10-30 | 上海重型机器厂有限公司 | Manufacturing method for hot arc bent pipe of AP1000 nuclear power main pipeline |
| CN102451976A (en) * | 2010-10-29 | 2012-05-16 | 上海重型机器厂有限公司 | Manufacturing method for hot arc bent pipe of AP1000 nuclear power main pipeline |
| CN102166665B (en) * | 2010-12-23 | 2012-09-12 | 大连理工大学 | Five-axis NC (numerical control) milling method for internal surfaces of bent pipes |
| CN102166665A (en) * | 2010-12-23 | 2011-08-31 | 大连理工大学 | Five-axis NC (numerical control) milling method for internal surfaces of bent pipes |
| CN102145391B (en) * | 2011-04-04 | 2012-10-10 | 兰州理工大学 | Boring spindle device |
| CN102145391A (en) * | 2011-04-04 | 2011-08-10 | 兰州理工大学 | Boring spindle device |
| CN102201024A (en) * | 2011-06-29 | 2011-09-28 | 华东理工大学 | Method for determining process parameter of expanded connection between tube and tube plate of AP1000 nuclear power passive heat exchanger |
| CN102201024B (en) * | 2011-06-29 | 2012-10-17 | 华东理工大学 | Method for determining process parameter of expanded connection between tube and tube plate of AP1000 nuclear power passive heat exchanger |
| CN103358135B (en) * | 2012-04-05 | 2016-02-10 | 中国石油天然气集团公司 | Heavy caliber hot-bending bends retaining wall on slope dedicated |
| CN103358135A (en) * | 2012-04-05 | 2013-10-23 | 中国石油天然气集团公司 | Workbench for groove machining of large-caliber hot bends |
| US9782842B2 (en) | 2013-07-31 | 2017-10-10 | Noda Kanagata Co., Ltd. | Method of manufacturing an elbow, cutting tool, and elbow |
| CN104338987A (en) * | 2013-07-31 | 2015-02-11 | 野田金型有限会社 | Elbow manufacturing method, cutting tool, and elbow |
| CN103506654A (en) * | 2013-10-11 | 2014-01-15 | 一重集团绍兴重型机床有限公司 | Mechanism for machining holes inside pipeline |
| CN103506654B (en) * | 2013-10-11 | 2016-04-20 | 一重集团绍兴重型机床有限公司 | A kind of inner bore of pipeline organisation of working |
| CN103521803B (en) * | 2013-10-11 | 2017-01-11 | 一重集团绍兴重型机床有限公司 | Inner hole machining device of pipeline arc bend |
| CN103521803A (en) * | 2013-10-11 | 2014-01-22 | 一重集团绍兴重型机床有限公司 | Inner hole machining device of pipeline arc bend |
| CN107538053A (en) * | 2017-09-15 | 2018-01-05 | 西安航空职业技术学院 | A kind of circular arc elbow internal wall machining tool |
| CN108645337A (en) * | 2018-04-27 | 2018-10-12 | 北京理工大学 | A kind of depth inside pipe wall Surface Location Error on-line measurement and compensation method |
| CN109158648A (en) * | 2018-09-29 | 2019-01-08 | 严双喜 | It is a kind of for the bore hole sealing machine of curvature pipeline and its process flow |
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Open date: 20100407 |