CN103921147A - Clamp for machining steam passage of large blade of steam turbine - Google Patents

Clamp for machining steam passage of large blade of steam turbine Download PDF

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Publication number
CN103921147A
CN103921147A CN201410174512.XA CN201410174512A CN103921147A CN 103921147 A CN103921147 A CN 103921147A CN 201410174512 A CN201410174512 A CN 201410174512A CN 103921147 A CN103921147 A CN 103921147A
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CN
China
Prior art keywords
fixture
affixed
clamp
clamping seats
steam passage
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.)
Granted
Application number
CN201410174512.XA
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Chinese (zh)
Other versions
CN103921147B (en
Inventor
王玉君
康彦文
李海鹏
杨增纲
王玉敏
王海东
郭长辉
李铁成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Turbine Co Ltd
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Harbin Turbine Co Ltd
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Publication date
Application filed by Harbin Turbine Co Ltd filed Critical Harbin Turbine Co Ltd
Priority to CN201410174512.XA priority Critical patent/CN103921147B/en
Publication of CN103921147A publication Critical patent/CN103921147A/en
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Publication of CN103921147B publication Critical patent/CN103921147B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/063Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding turbine blades

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention belongs to a steam turbine blade clamp, and particularly relates to a clamp for machining a steam passage of a large blade of a steam turbine. The clamp for machining the steam passage of the large blade of the steam turbine aims to meet new process scheme requirements, a novel machining method used in cooperation with a four-axis device and a five-axis device is used for machining the steam passage of the large blade of the steam turbine, and meanwhile machining accuracy is guaranteed. The clamp for machining the steam passage of the large blade of the steam turbine comprises a machine tool connecting disc, a fixed ejector pin, a clamp base, a movable adjustable ejector pin, a connecting shaft, two second pressing blocks, a plurality of clamping bases and a plurality of first pressing blocks. The fixed ejector pin and the movable adjustable ejector pin are respectively and symmetrically inserted to the clamp base, the upper side and the lower side of the other end of the clamp base are respectively provided with one clamping base, the left side and the right side of the other end of the clamp base are respectively and symmetrically provided with the multiple clamping bases, and the upper surface of the other end of each clamping base is provided with a set screw. The clamp is used for machining the blade of the steam turbine.

Description

The fixture of the large blade steam passage of a kind of processing vapor turbine
Technical field
The present invention relates to a kind of turbine blade fixture, be specifically related to the fixture of the large blade steam passage of a kind of processing vapor turbine.
Background technology
In recent years, along with the development of steam turbine, steam turbine is produced progressively to large, smart, sharp future development, this updating of production. art of will seeking survival.Wherein the processing method of the large blade of steam turbine (as 1000mm, 1029mm, 1375mm etc.) also promotes improvement accordingly, existing fixture can not meet the requirement of new process processing, cause machining accuracy low, product is very easily out of shape, and will have new clamping mechanism to ensure to produce when this just requires to process.
Summary of the invention
The present invention meets new process program requirement in order to solve, and coordinates four axles, five axles to adopt the steam passage of the new large blade of processing method processing vapor turbine, ensures the problem of machining accuracy simultaneously, and then proposes the fixture of the large blade steam passage of a kind of processing vapor turbine.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: the present invention includes lathe terminal pad, fixing thimble, clamp base, movable adjustable thimble, connecting axle, two the second compact heaps, multiple clamping seats and multiple the first compact heap, one end of lathe terminal pad is affixed by two one end that connect gusset and fixture chassis, on the other end of lathe terminal pad, be respectively equipped with connecting axle and positioning key, positioning key is affixed by screw and lathe terminal pad, fixing thimble and movable adjustable thimble respectively symmetry are inserted on fixture chassis, fixing thimble is affixed by nut and fixture chassis, the both sides up and down of the fixture chassis other end are respectively provided with respectively clamping seats, the left and right sides of the fixture chassis other end is respectively arranged with respectively multiple clamping seats, the both sides of each clamping seats one end are affixed by soket head cap screw and square-head nut and fixture chassis respectively, the upper surface of each clamping seats other end is respectively provided with respectively holding screw, holding screw is through clamping seats, the end of upper and lower both sides, fixture chassis holding screw is each affixed with one end of the second compact heap respectively, the other end of the second compact heap coordinates with blade inlet edge and lagging edge respectively, the end of the left and right sides, fixture chassis holding screw is each affixed with one end of the first compact heap respectively, the other end of the first compact heap coordinates to face and back of the body sagittal plane with internal diameter blade respectively.
The beneficial effect that the present invention compared with prior art comprises is: the present invention has met the processing request of new process program with the fixture of " three thimbles " location, adopt three thimble locating blades to ensure machining accuracy, reduce the deflection of product, product percent of pass is promoted more than 30%, for good basis is laid in last assembling, fixture has certain versatility simultaneously, as long as similar structures blade is the position consistency of centre hole, just can be general, reduce manufacturing cost, the adjustment of clamp structure has ensured the enforcement of new technology scheme effectively.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention; Fig. 2 is that A in Fig. 1 is to view; Fig. 3 is that B in Fig. 2 is to view.
Detailed description of the invention
Detailed description of the invention one: as Figure 1-3, described in present embodiment, the fixture of the large blade steam passage of a kind of processing vapor turbine comprises lathe terminal pad 1, fixing thimble 2, clamp base 11, movable adjustable thimble 12, connecting axle 13, two the second compact heaps 15, multiple clamping seats 7 and multiple the first compact heap 14, it is affixed with the one end on fixture chassis 11 that one end of lathe terminal pad 1 connects gusset 8 by two, on the other end of lathe terminal pad 1, be respectively equipped with connecting axle 13 and positioning key 10, positioning key 10 is affixed by screw 9 and lathe terminal pad 1, fixing thimble 2 and movable adjustable thimble 12 respectively symmetry are inserted on fixture chassis 11, fixing thimble 2 is affixed by nut 3 and fixture chassis 11, the both sides up and down of fixture chassis 11 other ends are respectively provided with respectively clamping seats 7, the left and right sides of fixture chassis 11 other ends is respectively arranged with respectively multiple clamping seats 7, the both sides of each clamping seats 7 one end are affixed with fixture chassis 11 by soket head cap screw 5 and square-head nut 4 respectively, the upper surface of each clamping seats 7 other ends is respectively provided with respectively holding screw 6, holding screw 6 is through clamping seats 7, the end of fixture chassis both sides holding screw 6 Shang Xia 11 is each affixed with one end of the second compact heap 15 respectively, the other end of the second compact heap 15 coordinates with blade inlet edge G-G and lagging edge H-H respectively, the end of fixture chassis 11 left and right sides holding screws 6 is each affixed with one end of the first compact heap 14 respectively, the other end of the first compact heap 14 coordinates to face F-F and back of the body sagittal plane E-E with internal diameter blade respectively.
Detailed description of the invention two: as Figure 1-3, each connection gusset 8 comprises cuboid 8-1 and two reinforcement 8-2 described in present embodiment, and two reinforcement 8-2 be arranged in parallel, and one end of each reinforcement 8-2 is affixed with the outside of cuboid 8-1 respectively.Other composition and connected mode are identical with detailed description of the invention one.By connecting gusset 8, lathe terminal pad 1 is connected with fixture chassis 11, simultaneously for machine spindle, fixing thimble 7 and movable adjustable thimble 12 provide sufficient installing space, reinforcement 8-2 can improve the stability that connects gusset 8 effectively, prevents fixture distortion, thereby improves the machining accuracy of workpiece.
Detailed description of the invention three: as Figure 1-3, lathe terminal pad 1 and fixture chassis 11 and two affixed modes that are connected between gusset 8 are welding described in present embodiment.Other composition and connected mode are identical with detailed description of the invention one or two.
Detailed description of the invention four: as Figure 1-3, the quantity of the fixture chassis 11 multiple clamping seats 7 in the left and right sides is 6 described in present embodiment.Other composition and connected mode are identical with detailed description of the invention one.
Operation principle
The present invention adopts the mode of " three thimbles " location, a thimble of fixing thimble 2, movable adjustable thimble 12 and lathe self band completes the location to workpiece jointly, movable adjustable thimble 12 can meet the blank length deviation of different leaves, can suitably adjust according to the length of blade, adjust respectively multiple the first compact heaps 14 and two the second compact heaps 15 by holding screw 6, thereby fixed blade effectively, completes the clamping to workpiece, ensure the stability of process.The present invention is located by connecting by positioning key 10 and connecting axle 13 and each four axles, five-axis machine tool numerical control turntable, can make blade on Digit Control Machine Tool, once complete the processing of linear leaf steam passage molded line, has met the need of production of new technology machining blade steam passage.

Claims (4)

1. the fixture of the large blade steam passage of processing vapor turbine, it is characterized in that: the fixture of the large blade steam passage of described a kind of processing vapor turbine comprises lathe terminal pad (1), fixing thimble (2), clamp base (11), movable adjustable thimble (12), connecting axle (13), two the second compact heaps (15), multiple clamping seats (7) and multiple the first compact heap (14), it is affixed with the one end on fixture chassis (11) that one end of lathe terminal pad (1) connects gusset (8) by two, on the other end of lathe terminal pad (1), be respectively equipped with connecting axle (13) and positioning key (10), positioning key (10) is affixed by screw (9) and lathe terminal pad (1), fixing thimble (2) and movable adjustable thimble (12) respectively symmetry are inserted on fixture chassis (11), fixing thimble (2) is affixed by nut (3) and fixture chassis (11), the both sides up and down of fixture chassis (11) other end are respectively provided with respectively clamping seats (7), the left and right sides of fixture chassis (11) other end is respectively arranged with respectively multiple clamping seats (7), the both sides of each clamping seats (7) one end are affixed with fixture chassis (11) by soket head cap screw (5) and square-head nut (4) respectively, the upper surface of each clamping seats (7) other end is respectively provided with respectively holding screw (6), holding screw (6) is through clamping seats (7), the end of the upper and lower both sides holding screws (6) in fixture chassis (11) is each affixed with one end of the second compact heap (15) respectively, the other end of the second compact heap (15) coordinates with blade inlet edge (G-G) and lagging edge (H-H) respectively, the end of fixture chassis (11) left and right sides holding screw (6) is each affixed with one end of the first compact heap (14) respectively, the other end of the first compact heap (14) coordinates to face (F-F) and back of the body sagittal plane (E-E) with internal diameter blade respectively.
2. the fixture of the large blade steam passage of a kind of processing vapor turbine according to claim 1, it is characterized in that: described each connection gusset (8) comprises cuboid (8-1) and two reinforcements (8-2), two reinforcements (8-2) be arranged in parallel, and one end of each reinforcement (8-2) is affixed with the outside of cuboid (8-1) respectively.
3. according to the fixture of the large blade steam passage of a kind of processing vapor turbine described in claim 1 or 2, it is characterized in that: described lathe terminal pad (1) and fixture chassis (11) and two affixed modes that are connected between gusset (8) are welding.
4. the fixture of the large blade steam passage of a kind of processing vapor turbine according to claim 1, is characterized in that: the quantity of the multiple clamping seats in the left and right sides, described fixture chassis (11) (7) is 6.
CN201410174512.XA 2014-04-28 2014-04-28 A kind of fixture processing the big blade steam passage of steam turbine Active CN103921147B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410174512.XA CN103921147B (en) 2014-04-28 2014-04-28 A kind of fixture processing the big blade steam passage of steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410174512.XA CN103921147B (en) 2014-04-28 2014-04-28 A kind of fixture processing the big blade steam passage of steam turbine

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CN103921147A true CN103921147A (en) 2014-07-16
CN103921147B CN103921147B (en) 2016-07-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384981A (en) * 2014-10-17 2015-03-04 南通中能机械制造有限公司 Precision casting static blade axis milling tool
CN107363597A (en) * 2017-08-01 2017-11-21 南通中能机械制造有限公司 The axle milling auxiliary clamp processing method of 580 die forging movable vane piece four
CN109848743A (en) * 2019-04-16 2019-06-07 哈尔滨汽轮机厂有限责任公司 A kind of clamping device for processing steam turbine special substance movable vane piece
CN112743364A (en) * 2020-12-30 2021-05-04 德阳六合能源材料有限公司 Clamp for machining steam turbine blade steam passage profile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10026829C2 (en) * 2000-05-30 2003-02-20 Arthur Prib Device for clamping a workpiece with an uneven surface
US6855033B2 (en) * 2001-12-13 2005-02-15 General Electric Company Fixture for clamping a gas turbine component blank and its use in shaping the gas turbine component blank
US20090278294A1 (en) * 2008-05-09 2009-11-12 Rolls-Royce Plc Clamping system
CN103737353A (en) * 2013-12-19 2014-04-23 东方电气集团东方汽轮机有限公司 Steam turbine blade positioning and clamping system used for machining steam passage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10026829C2 (en) * 2000-05-30 2003-02-20 Arthur Prib Device for clamping a workpiece with an uneven surface
US6855033B2 (en) * 2001-12-13 2005-02-15 General Electric Company Fixture for clamping a gas turbine component blank and its use in shaping the gas turbine component blank
US20090278294A1 (en) * 2008-05-09 2009-11-12 Rolls-Royce Plc Clamping system
CN103737353A (en) * 2013-12-19 2014-04-23 东方电气集团东方汽轮机有限公司 Steam turbine blade positioning and clamping system used for machining steam passage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384981A (en) * 2014-10-17 2015-03-04 南通中能机械制造有限公司 Precision casting static blade axis milling tool
CN107363597A (en) * 2017-08-01 2017-11-21 南通中能机械制造有限公司 The axle milling auxiliary clamp processing method of 580 die forging movable vane piece four
CN109848743A (en) * 2019-04-16 2019-06-07 哈尔滨汽轮机厂有限责任公司 A kind of clamping device for processing steam turbine special substance movable vane piece
CN109848743B (en) * 2019-04-16 2023-10-10 哈尔滨汽轮机厂有限责任公司 Clamping device for processing moving blades made of special materials of steam turbine
CN112743364A (en) * 2020-12-30 2021-05-04 德阳六合能源材料有限公司 Clamp for machining steam turbine blade steam passage profile
CN112743364B (en) * 2020-12-30 2022-04-01 德阳六合能源材料有限公司 Clamp for machining steam turbine blade steam passage profile

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