CN103737353B - A kind of turbine blade positioning and clamping system for steam passage processing - Google Patents
A kind of turbine blade positioning and clamping system for steam passage processing Download PDFInfo
- Publication number
- CN103737353B CN103737353B CN201310702448.3A CN201310702448A CN103737353B CN 103737353 B CN103737353 B CN 103737353B CN 201310702448 A CN201310702448 A CN 201310702448A CN 103737353 B CN103737353 B CN 103737353B
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- oil cylinder
- integral shroud
- fixture
- chuck body
- blade
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Classifications
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/063—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding turbine blades
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
Abstract
The invention provides a kind of turbine blade positioning and clamping system for steam passage processing, including clamping blade two ends, and it is connected to the blade root fixture on lathe and integral shroud fixture, described integral shroud fixture includes chuck body, clamping device and accumulator, described clamping device includes vertically, it is successively set on the spring supporting oil cylinder of chuck body upper surface, support bar and oil path block oil cylinder, the lower surface at the piston end correspondence integral shroud position of described spring supporting oil cylinder is arranged, it is connected to bottom support bar in chuck body, the middle part of the hinged clamp arm in top, the end of the hinged clamp arm of piston end of oil path block oil cylinder, the upper surface at correspondence integral shroud position, clamp arm front end is arranged, after the piston end motion of described spring supporting oil cylinder and oil path block oil cylinder puts in place, accumulator keeps its oil pressure state. the present invention reduces the labor intensity of operator, reduces operation easier, it is prevented effectively from the deformation that blade is shone by fixture, working (machining) efficiency is highly improved, and crudy is effectively controlled.
Description
Technical field
The present invention relates to turbine blade and manufacture field, specifically a kind of turbine blade positioning and clamping system for steam passage processing.
Background technology
The steam passage of turbine blade is processed, generally uses traditional fixture by the blade root of blade and integral shroud part clamping on lathe. But, using lathe in the blade steam passage course of processing, it is easy to problems with occurs: 1, blade and cause blade flexural deformation because of blade tips compressive stress and steam passage is longer and lagging edge weak (thickness about 0.8) causes processing the problem such as easily to be trembled; 2, tradition cooked mode causes blade yielding in the course of processing, inefficient (clamping causes that blade processing is trembled, so can not full depth); 3, after clamping due to blade root, integral shroud is in free state, and operator are little in order to ensure workpiece deformation when clamping, namely to adopt the modes such as manual pad pad to clamp workpiece, such labor intensity relatively big (the blade processing time is 8h, clamping time 3h), and operation easier is bigger. Particularly when processing low pressure blade, due to the length of low pressure blade for its radial dimension very big, the such as length of 47 inches of low pressure blades is 1200mm, therefore, processes increasingly difficult, produces problem above even more serious.
Summary of the invention
It is an object of the invention to: provide a kind of turbine blade positioning and clamping system so that in the steam passage course of processing, processing is stable, it is simple and easy to operate, working (machining) efficiency is high.
The technical solution adopted in the present invention is:
A kind of turbine blade positioning and clamping system for steam passage processing, including clamping blade two ends, and it is connected to the blade root fixture on lathe and integral shroud fixture, described integral shroud fixture includes chuck body, clamping device and accumulator, described clamping device includes vertically, it is successively set on the spring supporting oil cylinder of chuck body upper surface, support bar and oil path block oil cylinder, the lower surface at the piston end correspondence integral shroud position of described spring supporting oil cylinder is arranged, it is connected to bottom support bar in chuck body, the middle part of the hinged clamp arm in top, the end of the hinged clamp arm of piston end of oil path block oil cylinder, the upper surface at correspondence integral shroud position, clamp arm front end is arranged, after the piston end motion of described spring supporting oil cylinder and oil path block oil cylinder puts in place, accumulator keeps its oil pressure state.
Described clamping device is some sets, is symmetricly set on chuck body upper surface side by side.
Described support bar has the degree of freedom that can rotate about the axis thereof relative to chuck body.
The front end of described clamp arm is corresponding is provided with laciniation with integral shroud location contacts position.
Described blade root fixture includes chuck body, hold down gag, holding device and accumulator, the lower surface at described blade root position contacts with chuck body bottom surface, hold down gag and holding device are separately positioned on the opposite sides of chuck body, hold down gag includes oscillating oil cylinder and clamping arm, oscillating oil cylinder is arranged vertically at the end of the side of chuck body, its piston end connection clamping arm, and the upper surface at correspondence blade root position, clamping arm front end is arranged; Holding device includes oscillating oil cylinder and holds out against arm, and oscillating oil cylinder is arranged vertically at the opposite side of chuck body, its piston end connects the end holding out against arm, and the side holding out against correspondence blade root position, arm front end is arranged; After the oscillating oil cylinder motion of described hold down gag and holding device puts in place, accumulator keeps its oil pressure state.
Described integral shroud fixture and blade root fixture are connected on lathe by transition disc.
The invention have the advantages that:
The present invention adopts Hydraumatic automatic clamping mode, reduces the labor intensity of operator, reduces operation easier; Blade root fixture adopts the mode of float support, makes blade process under self adaptation state, so can be prevented effectively from the deformation that blade is shone by fixture; Integral shroud fixture adopts the mode of clamping after-drawing blade, solves blade processing and the problem such as easily trembles, makes the problem on deformation of blade improve, and working (machining) efficiency is highly improved, and crudy is effectively controlled.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automatic hydraulic fixture of gas passageway of blade of steam turbine of the present invention processing;
Fig. 2 is the use status architecture schematic diagram of the automatic hydraulic fixture of gas passageway of blade of steam turbine of the present invention processing;
Fig. 3 is the structural representation of blade root drive system of the present invention;
Fig. 4 is the main TV structure schematic diagram of Fig. 3;
Fig. 5 is the plan structure schematic diagram of Fig. 3;
Fig. 6 is the side-looking structural representation of Fig. 3;
Fig. 7 is the structural representation of integral shroud drive system of the present invention;
Fig. 8 is the main TV structure schematic diagram of Fig. 7;
Fig. 9 is the plan structure schematic diagram of Fig. 7;
Figure 10 is the side-looking structural representation of Fig. 7;
Figure 11 is the structural representation of integral shroud drive system clamp arm of the present invention;
Figure 12 is the A close-up schematic view of Figure 11.
Number in the figure represents: 1, blade root fixture, 2, integral shroud fixture, 3, blade, 1-1, transition disc, 1-2, chuck body, 1-3, accumulator, 1-4, sequence valve, 1-5, Pressure gauge, 1-6, fast interface, 1-7, oscillating oil cylinder, 1-8, hold out against arm, 1-9, oscillating oil cylinder, 1-10, clamping arm, 2-1, transition disc, 2-2, chuck body, 2-3, accumulator, 2-4, sequence valve, 2-5, Pressure gauge, 2-6, fast interface, 2-7, spring supporting oil cylinder, 2-8, clamp arm, 2-9, oil path block oil cylinder, 2-10, support bar, 2-11, magnetic block.
Detailed description of the invention
As shown in Fig. 1～12, the present invention be a kind of by design a kind of for steam passage processing turbine blade positioning and clamping system, including clamping blade 3 two ends and be connected to the blade root fixture 1(blade root drive system on lathe) and integral shroud fixture 2(integral shroud drive system). Wherein:
-integral shroud fixture 2 includes chuck body 2-2, clamping device and accumulator 2-3. Chuck body 2-2, also referred to as integral shroud transmission body, is that a cuboid, upper surface front end are inwardly recessed a step-like platform.Clamping device includes vertically, is successively set on spring supporting oil cylinder 2-7, support bar 2-10 and the oil path block oil cylinder 2-9 of chuck body 2-2 upper surface, and spring supporting oil cylinder 2-7 is arranged in the front-end platform of chuck body 2-2, support bar 2-10 and oil path block oil cylinder 2-9 is arranged on chuck body 2-2 upper surface.
The lower surface at the piston end correspondence integral shroud position of spring supporting oil cylinder 2-7 is arranged, spring supporting oil cylinder 2-7 adopts floating self adaptation to support, its piston end touching workpiece (lower surface at integral shroud position) namely stops rising, and keep current state, stronger holding power is provided, reaches the purpose of float support. In this detailed description of the invention, spring supporting oil cylinder 2-7 selects the spring supporting oil cylinder WSC-222 of ENERPAC company.
Be connected on chuck body 2-2 bottom support bar 2-10, the middle part of the hinged clamp arm 2-8 in top, play the purpose supporting clamp arm 2-8. Meanwhile, but support bar 2-10 fixes relative to chuck body 2-2 short transverse and has the degree of freedom that can rotate about the axis thereof, and namely support bar 2-10 clockwise or counterclockwise, can facilitate the clamping of workpiece.
The end of the hinged clamp arm 2-8 of piston end of oil path block oil cylinder 2-9, jack-up clamp arm 2-8 during work, make clamp arm 2-8 produce pressure and pulling force backward.
The upper surface at correspondence integral shroud position, clamp arm 2-8 front end is arranged, and the front end correspondence of clamp arm 2-8 is provided with laciniation with integral shroud location contacts position. Clamp arm 2-8 is side pressure workpiece, owing to its front end is corresponding and integral shroud location contacts position is laciniation, and clamp arm 2-8 entirety is case of bending, so, when compressing integral shroud position in clamp arm 2-8 front end, pulling force backward can be produced, make workpiece be in extended state, be conducive to improving the working (machining) efficiency (strengthening chip parameter) of blade steam passage.
After the piston end of spring supporting oil cylinder 2-7 and oil path block oil cylinder 2-9 moves and puts in place, accumulator 2-3 keeps its oil pressure state. In this detailed description of the invention, accumulator 2-3 selects the accumulator ACL202 of ENERPAC company.
Integral shroud fixture 2 is connected on lathe by transition disc 2-1, and transition disc 2-1 is arranged on the side of chuck body 2-2, and transition disc 2-1 is the interface of lathe and integral shroud fixture 2, and it is axial corresponding with blade 3 axially.
It is to be noted that clamping device can be a set of, it is possible to be some sets, when clamping device is to overlap more, its be symmetricly set on the upper surface of chuck body 2-2 side by side. In this detailed description of the invention, clamping device is 2 sets, namely on chuck body 2-2 upper surface, is set side by side with 2 spring supporting oil cylinder 2-7,2 support bar 2-10 and 2 oil path block oil cylinder 2-9 successively in pairs.
The oil piping system of integral shroud fixture 2 is additionally provided with fast interface 2-6, sequence valve 2-4 and Pressure gauge 2-5. Concrete: hydraulic oil source is connected with spring supporting oil cylinder 2-7 and oil path block oil cylinder 2-9 by fast interface 2-6, and fast interface 2-6 is hydraulic fluid pressure entrance, it may be achieved Quick-clamped and unloading. Sequence valve 2-4 provides voltage supply order for spring supporting oil cylinder 2-7 and oil path block oil cylinder 2-9, and in this detailed description of the invention, sequence valve 2-4 selects the sequence valve MVPM-5 of ENERPAC company. Pressure gauge 2-5 is for detecting the oil circuit pressure of integral shroud fixture 2.
It addition, the chuck body 2-2 of spring supporting oil cylinder 2-7 position is provided with magnetic block 2-11, it is possible to the quick and precisely operating position of the clamp arm 2-8 that positioning metal material prepares so that it is be not easy positioning.
The work process of the integral shroud fixture 2 of the present invention is as follows:
1, manual rotation support bar 2-10 is thus regulating the angle of clamp arm 2-8 so that it is avoid the position that the integral shroud position of blade 3 is put into, the integral shroud position of blade 3 easy to setup.
2, integral shroud fixture 2 is put at the integral shroud position of blade 3.
3, spring supporting oil cylinder 2-7 work, its piston end move upward, until the bottom surface at the integral shroud position of touching blade 3 stops, and keep current state, undertake bigger pressure.
4, manual rotation support bar 2-10 is thus regulating the angle of clamp arm 2-8, makes clamp arm 2-8 be perpendicular to the integral shroud position end face of blade 3; Utilize the magnetic effect of magnetic block 2-11, make clamp arm 2-8 quickly be held location.
5, oil path block oil cylinder 2-9 work, its piston end move upward, jack-up clamp arm 2-8 end so that the end face at the integral shroud position of clamp arm 2-8 front end blade 3, and the pulling force that generation is backward carrys out stretched part.
So, the clamping work at the integral shroud position of blade 3 is completed.
-blade root fixture 1 includes chuck body 1-2, hold down gag, holding device and accumulator 1-3. Chuck body 1-2, also referred to as blade root transmission body, is a framework with three sides and a bottom surface, and the bottom surface of chuck body 1-2 puts off the blade root position of blade 3, the i.e. lower surface at blade root position and contacts with the bottom surface of chuck body 1-2; Two relative tops, side arrange hold down gag and holding device respectively inwards; Independent side is provided with transition disc 1-1. Blade root fixture 1 is connected on lathe by transition disc 1-1, and transition disc 1-1 is lathe and the interface of blade root fixture 1, its axial axial corresponding with blade 3.
Hold down gag includes oscillating oil cylinder 1-9 and clamping arm 1-10, oscillating oil cylinder 1-9 and is arranged vertically at the end of the side of chuck body 1-2, its piston end connection clamping arm 1-10. The blade root position upper surface of the blade 3 that during oscillating oil cylinder 1-9 work, turn clamping arm 1-10 compresses inwardly downward, put off on chuck body 1-2 bottom surface. In this detailed description of the invention, oscillating oil cylinder 1-9 selects the oscillating oil cylinder SCLS-22 of ENERPAC company, rotatable 90 °, easy to setup.
Holding device includes oscillating oil cylinder 1-7 and holds out against that arm 1-8, oscillating oil cylinder 1-7 are arranged vertically at the opposite side of chuck body 1-2, its piston end connects and holds out against the end of arm 1-8. During oscillating oil cylinder 1-7 work, turn holds out against arm 1-8 to interior to lateral surface compressing, the side, blade root position of blade 3 that puts off in chuck body 1-2. In this detailed description of the invention, oscillating oil cylinder 1-7 selects the oscillating oil cylinder SULS202 of ENERPAC company, rotatable 90 °, easy to setup.
When blade root fixture 1 works, after first using the oscillating oil cylinder 1-7 of holding device, drive to hold out against the arm 1-8 side, blade root position holding out against blade 3, re-use hold down gag oscillating oil cylinder 1-9, drive clamping arm 1-10 compress blade 3 blade root position upper surface so that blade root position positioned completely in blade root fixture 1.
After the piston end motion of oscillating oil cylinder 1-7 and the 1-9 of hold down gag and holding device puts in place, accumulator 1-3 keeps its oil pressure state. In this detailed description of the invention, accumulator 1-3 selects the accumulator ACL202 of ENERPAC company.
The oil piping system of blade root fixture 1 is additionally provided with fast interface 1-6, sequence valve 1-4 and Pressure gauge 1-5. Concrete: hydraulic oil source is connected with oscillating oil cylinder 1-7 and 1-9 by fast interface 1-6, and fast interface 1-6 is hydraulic fluid pressure entrance, it may be achieved Quick-clamped and unloading.Sequence valve 1-4 provides voltage supply order for oscillating oil cylinder 1-7 and 1-9, and in this detailed description of the invention, sequence valve 1-4 selects the sequence valve MVPM-5 of ENERPAC company. Pressure gauge 1-5 is for detecting the oil circuit pressure of blade root fixture 1.
The work process of the blade root fixture 1 of the present invention is as follows:
1, blade root fixture 1 is put at the blade root position of blade 3.
2, oscillating oil cylinder 1-7 work so that hold out against the inside half-twist of arm 1-8, just side, blade root position to blade 3; When, behind the side at blade root position holding out against end in contact blade 3 before arm 1-8, oscillating oil cylinder 1-7 shrinks, produces pressure so that hold out against the arm 1-8 side holding out against the blade root position of blade 3.
3, oscillating oil cylinder 1-9 work so that the inside half-twist of clamping arm 1-10, just blade root position end face to blade 3; When, after the end face at the blade root position of end in contact blade 3 before clamping arm 1-10, oscillating oil cylinder 1-9 shrinks, produces pressure so that clamping arm 1-10 compresses the end face at the blade root position of blade 3.
So, the clamping work at the blade root position of blade 3 is completed.
Claims (5)
1. the turbine blade positioning and clamping system for steam passage processing, including clamping blade two ends, and it is connected to the blade root fixture on lathe and integral shroud fixture, it is characterized in that: described integral shroud fixture includes integral shroud chuck body, the accumulator of clamping device and integral shroud fixture, described clamping device includes vertically, it is successively set on the spring supporting oil cylinder of integral shroud chuck body upper surface, support bar and oil path block oil cylinder, the lower surface at the piston end correspondence integral shroud position of described spring supporting oil cylinder is arranged, it is connected in integral shroud chuck body bottom support bar, the middle part of the hinged clamp arm in top, the end of the hinged clamp arm of piston end of oil path block oil cylinder, the upper surface at correspondence integral shroud position, clamp arm front end is arranged, after the piston end motion of described spring supporting oil cylinder and oil path block oil cylinder puts in place, the accumulator of integral shroud fixture keeps its oil pressure state, blade root fixture includes the accumulator of blade root chuck body, hold down gag, holding device and blade root fixture, the lower surface at blade root position contacts with blade root chuck body bottom surface, hold down gag and holding device are separately positioned on the opposite sides of blade root chuck body, hold down gag includes oscillating oil cylinder and clamping arm, the oscillating oil cylinder of hold down gag is arranged vertically at the end of the side of blade root chuck body, its piston end connection clamping arm, and the upper surface at correspondence blade root position, clamping arm front end is arranged, holding device includes oscillating oil cylinder and holds out against arm, and the oscillating oil cylinder of holding device is arranged vertically at the opposite side of blade root chuck body, its piston end connects the end holding out against arm, and the side holding out against correspondence blade root position, arm front end is arranged, after the oscillating oil cylinder motion of described hold down gag and holding device puts in place, the accumulator of blade root fixture keeps its oil pressure state.
2. the turbine blade positioning and clamping system for steam passage processing according to claim 1, it is characterised in that: described clamping device is some sets, is symmetricly set on integral shroud chuck body upper surface side by side.
3. the turbine blade positioning and clamping system for steam passage processing according to claim 1, it is characterised in that: described support bar has the degree of freedom that can rotate about the axis thereof relative to integral shroud chuck body.
4. the turbine blade positioning and clamping system for steam passage processing according to claim 1, it is characterised in that: the front end of described clamp arm is corresponding is provided with laciniation with integral shroud location contacts position.
5. the turbine blade positioning and clamping system for steam passage processing according to any one of Claims 1 to 4, it is characterised in that: described integral shroud fixture and blade root fixture are connected on lathe by transition disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702448.3A CN103737353B (en) | 2013-12-19 | 2013-12-19 | A kind of turbine blade positioning and clamping system for steam passage processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702448.3A CN103737353B (en) | 2013-12-19 | 2013-12-19 | A kind of turbine blade positioning and clamping system for steam passage processing |
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| Publication Number | Publication Date |
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| CN103737353A CN103737353A (en) | 2014-04-23 |
| CN103737353B true CN103737353B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310702448.3A Active CN103737353B (en) | 2013-12-19 | 2013-12-19 | A kind of turbine blade positioning and clamping system for steam passage processing |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014441B (en) * | 2014-04-24 | 2017-12-08 | 上海宏功机械科技有限公司 | A kind of chucking power observes direct and adjustable hydraulically operated fixture |
| CN103921147B (en) * | 2014-04-28 | 2016-07-06 | 哈尔滨汽轮机厂有限责任公司 | A kind of fixture processing the big blade steam passage of steam turbine |
| CN104057169B (en) * | 2014-06-13 | 2016-05-04 | 南京赛达机械制造有限公司 | A kind of turbine Blade Machining special fixture |
| JP6312327B2 (en) * | 2015-04-08 | 2018-04-18 | 三菱日立パワーシステムズ株式会社 | Support method, processing method, and apparatus for performing these methods |
| CN105014427B (en) * | 2015-07-16 | 2018-01-09 | 佛山市普拉迪数控科技有限公司 | A kind of frock clamp of Z-type marine air conditioning beam |
| CN106166682B (en) * | 2016-08-31 | 2018-05-22 | 泰安方力智能设备有限公司 | A kind of work pieces process processes fixing means with compression tooling system and workpiece side |
| CN109968066B (en) * | 2019-04-29 | 2023-10-10 | 哈尔滨汽轮机厂有限责任公司 | Clamping device and method for machining special blade and blade crown of steam turbine |
| CN110666554A (en) * | 2019-11-19 | 2020-01-10 | 长春工业大学 | Pressure-maintaining type five-axis clamp for wheel support |
| CN113084561B (en) * | 2021-03-23 | 2023-05-26 | 徐州徐工传动科技有限公司 | Thin-wall box clamp mechanism |
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| CN101786237A (en) * | 2009-12-29 | 2010-07-28 | 东方电气集团东方汽轮机有限公司 | Fixture used for processing small moving blade in turbine and processing method thereof |
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| US6959572B2 (en) * | 2002-12-20 | 2005-11-01 | Proenterpriz, Inc. | Fixture for holding metals parts for bending or twist correction |
| DE102008013716B4 (en) * | 2008-02-29 | 2010-08-12 | Chiron-Werke Gmbh & Co Kg | Machine tool and method, in particular for turbocharger Verdichterradfräsen |
| FR2966069B1 (en) * | 2010-10-19 | 2012-11-16 | Snecma | TOOLING BLADE OF A TURBINE BLADE FOR THE MACHINING OF THE FOOT COMPRISING A MOBILE ROTATION CRADLE |
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| CN1704560A (en) * | 2004-06-02 | 2005-12-07 | 通用电气公司 | Methods and apparatus for fabricating a turbine nozzle assembly |
| CN101786237A (en) * | 2009-12-29 | 2010-07-28 | 东方电气集团东方汽轮机有限公司 | Fixture used for processing small moving blade in turbine and processing method thereof |
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| CN103737353A (en) | 2014-04-23 |
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