CN102975050A - Rotary mill clamp structure of blade with tenon tooth root - Google Patents
Rotary mill clamp structure of blade with tenon tooth root Download PDFInfo
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- CN102975050A CN102975050A CN2012105033286A CN201210503328A CN102975050A CN 102975050 A CN102975050 A CN 102975050A CN 2012105033286 A CN2012105033286 A CN 2012105033286A CN 201210503328 A CN201210503328 A CN 201210503328A CN 102975050 A CN102975050 A CN 102975050A
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Abstract
The invention provides a rotary mill clamp structure of a blade with a tenon tooth root. The structure can not only eliminate tooth form positioning displacement caused by gravity and pressing force of the blade, but also ensure the position of the tooth pressing block and the blade when the blade is pressed, so that the service life of the clamp is greatly prolonged, and the positioning precision of the clamp is greatly improved. The rotary mill clamp structure comprises a tooth form pressing mechanism and a side face pressing mechanism. The rotary mill clamp structure is characterized in that the tooth form pressing mechanism comprises a tooth form positioning base and a tooth form pressing block. One side of the tooth form positioning base is directly connected with an axial hole of a machine tool through a positioning shaft, while the other side of the tooth form positioning base is provided with the a tooth form positioning face. The tooth form pressing block is installed on the tooth form positioning base through a hinge mechanism and the tooth form face of the tooth form pressing block is opposite to the tooth form positioning face.
Description
Technical field
The present invention relates to adopt the blade revolution of profile of tooth location to mill the processing tool technical field, be specially the rotary milling fixture structure of tenon-tooth blade-root blade.
Background technology
The tenon-tooth blade-root blade is the common type of large-size steam turbine blade, usually adopts the tenon tooth rotary milling fixture, utilizes the profile of tooth of blade root tenon tooth and leaf top centre bore that blade is positioned at the five-axis machine tool upper rotary to mill the fine finishining blade profile.General tenon tooth blade rotary milling fixture, it comprises base 11, profile of tooth hold-down mechanism and lateral surface compressing mechanism, base 11 is connected with five axles revolution lathe by rotary disk 20, and profile of tooth hold-down mechanism and lateral surface compressing mechanism all are installed on base, wherein the profile of tooth hold-down mechanism comprises profile of tooth locating piece 12 and profile of tooth compact heap 13, lateral surface compressing mechanism comprises side locating piece 14 and lateral surface compressing piece 15, blade is respectively by blade root tenon tooth locating surface, blade root side, location and profile of tooth locating piece 12, side locating piece 14 contact location, again by profile of tooth compact heap 13, thereby lateral surface compressing piece 15 is pressed in tenon-tooth blade-root 16 and clamps blade on the profile of tooth locating piece 12, its shortcoming is: profile of tooth locating piece 12 be by housing screw 18 and alignment pin 19 at right angle settings on base 11, profile of tooth compact heap 13 is pressed in tenon-tooth blade-root 16 on the profile of tooth locating piece 12 by the pressing plate 17 that is installed on base 11, present maximization along with blade, leaf weight is increasing, and the High-speed machining of blade also needs the thrust that provides larger, this is so that the housing screw between profile of tooth locating piece and the base, alignment pin is subject to increasing blade gravity and thrust effect, usually cause the profile of tooth locating piece to be subjected to displacement, so that error appears in the blade location, affect crudy; Simultaneously, because the position of profile of tooth compact heap is put at random by the operative employee, the thrust position is inconsistent when causing each blade clamping, also causes deviations, affects the blade processing quality.Among Fig. 1,23 is milled screw, and it is pressed in tenon-tooth blade-root 16 on the side locating piece 14 with lateral surface compressing piece 15; Among Fig. 2,24 is hexagon-headed bolt, and 21 is studs, and 22 are band shoulder hex nut, and their cooperations are installed on pressing plate 17 base 11 and control pressing plate 17 profile of tooth compact heap 13, tenon-tooth blade-root 16 are pressed in profile of tooth locating piece 12.
Summary of the invention
For the problems referred to above, the invention provides the rotary milling fixture structure of tenon-tooth blade-root blade, it can eliminate the profile of tooth location displacement that blade gravity and thrust cause, can guarantee again the position of profile of tooth compact heap and blade when blade compresses, thereby greatly improves service life and the positioning accuracy of anchor clamps.
Its technical scheme is such, it comprises profile of tooth hold-down mechanism and lateral surface compressing mechanism, it is characterized in that: described profile of tooth hold-down mechanism comprises profile of tooth positioning seat and profile of tooth compact heap, described profile of tooth positioning seat one side by locating shaft directly be connected with the axis hole of lathe, opposite side is provided with the profile of tooth locating surface, described profile of tooth compact heap be installed on the described profile of tooth positioning seat by linkage and the toothed surface of described profile of tooth compact heap relative with described profile of tooth locating surface.
It is further characterized in that:
Described linkage comprises hinge block, and described hinge block is installed on the described profile of tooth positioning seat by mounting screw, and described profile of tooth compact heap is installed on described hinge block by pin;
Described lateral surface compressing mechanism comprises side locating piece and lateral surface compressing piece, and described side locating piece and lateral surface compressing piece are installed on respectively described profile of tooth positioning seat both sides; Described lateral surface compressing piece by holding screw with the tenon-tooth blade-root lateral surface compressing on the locating piece of described side.
Compare with existing tenon tooth blade rotary milling fixture structure, beneficial effect of the present invention is: it is integrated the base in the former rotary milling fixture and profile of tooth locating piece and forms the profile of tooth positioning seat, the profile of tooth positioning seat directly is connected with lathe, so that blade gravity directly is passed to lathe, and the thrust between former profile of tooth locating piece and the base namely changes the internal force of profile of tooth positioning seat into, guarantee that blade gravity and thrust can not guide the variation of profile of tooth positioning seat position, thereby guarantee the reliable location of blade; And the profile of tooth compact heap is connected on the profile of tooth positioning seat by linkage, so that the profile of tooth compact heap can only rotate by the pin in the hinge block of linkage, both limited the mutual alignment of the link of profile of tooth compact heap and profile of tooth positioning seat, so that blade clamping thrust position is consistent, guaranteed that again the action of blade clamping is convenient smoothly, thereby improved service life and the positioning accuracy of anchor clamps, and improved clamping efficient.
Description of drawings
Fig. 1 is existing tenon-tooth blade-root rotary milling fixture structural representation;
Fig. 2 is the profile of tooth hold-down mechanism scheme of installation of existing tenon-tooth blade-root rotary milling fixture;
Fig. 3 is the rotary milling fixture master TV structure schematic diagram of tenon-tooth blade-root blade of the present invention;
Fig. 4 is plan structure schematic diagram of the present invention;
Fig. 5 is that the A-A of Fig. 3 is to structural representation.
The specific embodiment
See Fig. 3, Fig. 4 and Fig. 5, the present invention includes profile of tooth hold-down mechanism and lateral surface compressing mechanism, wherein the profile of tooth hold-down mechanism comprises profile of tooth positioning seat 1 and profile of tooth compact heap 2, profile of tooth positioning seat 1 one sides by locating shaft 3 directly be connected with the lathe axis hole, opposite side is provided with profile of tooth locating surface 5, profile of tooth compact heap 2 be installed on the profile of tooth positioning seat 1 by linkage and the toothed surface 4 of profile of tooth compact heap 2 relative with profile of tooth locating surface 5.Linkage comprises hinge block 7, and hinge block 7 is installed on the profile of tooth positioning seat 1 by mounting screw, and profile of tooth compact heap 2 is installed on hinge block 7 by pin 6; Lateral surface compressing mechanism comprises side locating piece 9 and lateral surface compressing piece 10, and side locating piece 9 and lateral surface compressing piece 10 are installed on respectively profile of tooth positioning seat 1 both sides, lateral surface compressing piece 10 by holding screw 8 with the tenon-tooth blade-root lateral surface compressing on side locating piece 9.
Claims (4)
1. the rotary milling fixture structure of tenon-tooth blade-root blade, it comprises profile of tooth hold-down mechanism and lateral surface compressing mechanism, it is characterized in that: described profile of tooth hold-down mechanism comprises profile of tooth positioning seat and profile of tooth compact heap, described profile of tooth positioning seat one side by locating shaft directly be connected with the axis hole of lathe, opposite side is provided with the profile of tooth locating surface, described profile of tooth compact heap be installed on the described profile of tooth positioning seat by linkage and the toothed surface of described profile of tooth compact heap relative with described profile of tooth locating surface.
2. the rotary milling fixture structure of tenon-tooth blade-root blade according to claim 1, it is characterized in that: described linkage comprises hinge block, described hinge block is installed on the described profile of tooth positioning seat by mounting screw, and described profile of tooth compact heap is installed on described hinge block by pin.
3. the rotary milling fixture structure of tenon-tooth blade-root blade according to claim 2, it is characterized in that: described lateral surface compressing mechanism comprises side locating piece and lateral surface compressing piece, and described side locating piece and lateral surface compressing piece are installed on respectively described profile of tooth positioning seat both sides.
4. the rotary milling fixture structure of tenon-tooth blade-root blade according to claim 3 is characterized in that: described lateral surface compressing piece by holding screw with the tenon-tooth blade-root lateral surface compressing on the locating piece of described side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105033286A CN102975050A (en) | 2012-11-30 | 2012-11-30 | Rotary mill clamp structure of blade with tenon tooth root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105033286A CN102975050A (en) | 2012-11-30 | 2012-11-30 | Rotary mill clamp structure of blade with tenon tooth root |
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| CN102975050A true CN102975050A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105033286A Pending CN102975050A (en) | 2012-11-30 | 2012-11-30 | Rotary mill clamp structure of blade with tenon tooth root |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406560A (en) * | 2014-11-13 | 2015-03-11 | 中国南方航空工业(集团)有限公司 | Blade tenon tooth positioning device |
| CN104476229A (en) * | 2014-11-19 | 2015-04-01 | 杭州汽轮机股份有限公司 | Processing clamp for inner back-arc molded surface and boss of moving blade of steam turbine |
| CN104875047A (en) * | 2015-06-02 | 2015-09-02 | 无锡阳工机械制造有限公司 | Clamping mechanism for power generation equipment |
| CN105415206A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Universal shot-blasting fixture for tenon tooth blades of steam turbine |
| CN113579803A (en) * | 2021-08-18 | 2021-11-02 | 哈尔滨汽轮机厂有限责任公司 | Special blade milling steam passage clamp for five-axis numerical control machine tool and machining method |
| CN114700769A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Aviation blade surface machining, clamping and positioning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050132570A1 (en) * | 2003-12-18 | 2005-06-23 | Eric Bouchard | Methods and apparatus for machining components |
| CN101700626A (en) * | 2009-11-20 | 2010-05-05 | 无锡透平叶片有限公司 | Improved novel clamp for rotary milling of compressor blades |
| CN201720719U (en) * | 2010-06-30 | 2011-01-26 | 无锡润和叶片制造有限公司 | Universal fixture for milled root, assembling surface and molded surface of one-million KW turbine blade |
| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN202934367U (en) * | 2012-11-30 | 2013-05-15 | 无锡透平叶片有限公司 | Rotary milling clamp structure of tenon tooth blade root blade |
-
2012
- 2012-11-30 CN CN2012105033286A patent/CN102975050A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050132570A1 (en) * | 2003-12-18 | 2005-06-23 | Eric Bouchard | Methods and apparatus for machining components |
| CN101700626A (en) * | 2009-11-20 | 2010-05-05 | 无锡透平叶片有限公司 | Improved novel clamp for rotary milling of compressor blades |
| CN201720719U (en) * | 2010-06-30 | 2011-01-26 | 无锡润和叶片制造有限公司 | Universal fixture for milled root, assembling surface and molded surface of one-million KW turbine blade |
| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN202934367U (en) * | 2012-11-30 | 2013-05-15 | 无锡透平叶片有限公司 | Rotary milling clamp structure of tenon tooth blade root blade |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406560A (en) * | 2014-11-13 | 2015-03-11 | 中国南方航空工业(集团)有限公司 | Blade tenon tooth positioning device |
| CN104406560B (en) * | 2014-11-13 | 2018-01-05 | 中国南方航空工业(集团)有限公司 | blade tenon tooth positioning device |
| CN104476229A (en) * | 2014-11-19 | 2015-04-01 | 杭州汽轮机股份有限公司 | Processing clamp for inner back-arc molded surface and boss of moving blade of steam turbine |
| CN104875047A (en) * | 2015-06-02 | 2015-09-02 | 无锡阳工机械制造有限公司 | Clamping mechanism for power generation equipment |
| CN105415206A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Universal shot-blasting fixture for tenon tooth blades of steam turbine |
| CN113579803A (en) * | 2021-08-18 | 2021-11-02 | 哈尔滨汽轮机厂有限责任公司 | Special blade milling steam passage clamp for five-axis numerical control machine tool and machining method |
| CN114700769A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Aviation blade surface machining, clamping and positioning method |
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Application publication date: 20130320 |