CN203992329U - A kind of steam turbine die forging blade special fixture - Google Patents
A kind of steam turbine die forging blade special fixture Download PDFInfo
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- CN203992329U CN203992329U CN201420434242.7U CN201420434242U CN203992329U CN 203992329 U CN203992329 U CN 203992329U CN 201420434242 U CN201420434242 U CN 201420434242U CN 203992329 U CN203992329 U CN 203992329U
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- depression bar
- steam turbine
- die forging
- blade
- base plate
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Abstract
The utility model discloses a kind of steam turbine die forging blade special fixture, comprise horizontally disposed base plate, be respectively equipped with blade root dead head and leaf top positioning seat at plate upper surface two ends along its length, blade root dead head and leaf top positioning seat on be equipped with the thimble for fixing steam turbine die forging blade, be provided with support bar and connecting rod in a side of plate upper surface and between blade root dead head and leaf top positioning seat, one end of support bar is vertically fixed on base plate by securing member, the other end of support bar is hinged with the depression bar that can freely rotate, the a side vertical fixed connecting rod relative with support bar on base plate, connecting rod top is connected away from one end of support bar with depression bar by securing member, the utility model is with not only processing cost is low, simple in structure, fixation, and also dismounting is simple, and easy to use, energy quick-replaceable blade, the rate of reducing the number of rejects and seconds, cost-saving, improve working (machining) efficiency, the degree of accuracy of raising equipment processing.
Description
Technical field
The utility model relates to fixture, specifically a kind of steam turbine die forging blade special fixture.
Background technology
Due to the shape matching out-of-flatness of die forging blade and lack of standardization, and there is a lot of curved surfaces, directly be difficult to ensure requirement on machining accuracy with the face on die forging blade as machining benchmark, even can directly cause scrapping in batches phenomenon, if can solve die forging blade positioning datum problem, thereby can be cost-saving, reduce scrappage, improve the quality of product, current technological means is by pour into a mould low-melting alloy in square chest, blade and square chest to be connected as one, carry out machining blade using square chest face as benchmark again, so just well solve the machining benchmark problem of die forging blade, but fixture when cast exists and uses complex structure, fixing insecure, the problems such as working (machining) efficiency is low.
Utility model content
Technical problem to be solved in the utility model is, for the shortcoming of above prior art, to propose a kind of steam turbine die forging blade special fixture, not only processing cost is low, simple in structure, fixation, and also dismounting is simple, easy to use, energy quick-replaceable blade, the rate of reducing the number of rejects and seconds, cost-saving, improve working (machining) efficiency, the degree of accuracy of raising equipment processing.
In order to solve the problems of the technologies described above, the technical solution of the utility model is achieved in the following ways: a kind of steam turbine die forging blade special fixture, comprise horizontally disposed base plate, be respectively equipped with blade root dead head and leaf top positioning seat at plate upper surface two ends along its length, blade root dead head and leaf top positioning seat on be equipped with the thimble for fixing steam turbine die forging blade, be provided with support bar and connecting rod in a side of plate upper surface and between blade root dead head and leaf top positioning seat, one end of support bar is vertically fixed on base plate by securing member, the other end of support bar is hinged with the depression bar that can freely rotate, the a side vertical fixed connecting rod relative with support bar on base plate, connecting rod top is connected away from one end of support bar with depression bar by securing member.
Like this, by the technical solution of the utility model, blade root dead head and leaf top positioning seat on be equipped with the thimble for fixing steam turbine die forging blade, can fix fast and replace blade, save time, increase work efficiency, and simple in structure, easy to maintenance, processing cost is low, can firmly fix square chest by depression bar, avoids square chest in the time of cast to become flexible or slide, improve the reliability of fixture, improve the casting quality of product.
The technical scheme that the utility model further limits is:
Aforesaid steam turbine die forging blade special fixture, thimble comprises top, lining, knurled nut and spring, lining is located on top cylindrical by the inner hole sleeve being provided with along its length side, on excircle of bushing, one end is provided with screw thread, the other end extends outward step, the threaded one end of lining and top between be also provided with the spring being set on top, outside is stretched in the perforation that lining is all provided with through blade root dead head and leaf top positioning seat and threaded one end, knurled nut is threaded connection and is fixed on the threaded one end of lining, like this, can regulate top extension elongation by rotation knurled nut, realize fast replacing blade, save time, and simple in structure, easy for installation, convenient operation.
Aforesaid steam turbine die forging blade special fixture, on depression bar, be also provided with pressure head, pressure head is triangular shape, through the through hole of offering on depression bar and pressure head, pressure head is fixed on depression bar successively by straight pin, and pressure head can freely rotate along straight pin, and pressure head is positioned at the bottom of one side protrusion depression bar of depression bar lower end, can firmly compress square chest by pressure head, avoid square chest in the time of cast to become flexible or slide, improve the reliability of fixture, improve the casting quality of product, and simple in structure.
Aforesaid steam turbine die forging blade special fixture, depression bar is hinged on support bar by straight pin, and the other end of depression bar offers the U-lag of up/down perforation; Connecting rod one end is fixed on base plate, and the other end is connected and fixed connecting rod and depression bar by nut through the U-lag of depression bar, by being provided with U-lag in depression bar one end, can improve the service life of depression bar, facilitate connecting rod be connected with depression bar and dismantle, save time, increase work efficiency.
Aforesaid steam turbine die forging blade special fixture, on base plate, be also provided with the alignment pin for locating steam turbine die forging blade, further so fixing square chest, avoids square chest in the time of cast to become flexible or slide, guarantee the quality of cast, improve the reliability and stability of equipment.
The beneficial effects of the utility model are: blade root dead head and leaf top positioning seat on be equipped with the thimble for fixing steam turbine die forging blade, can fix fast and replace blade, save time, increase work efficiency, and simple in structure, easy to maintenance, processing cost is low, can can firmly fix square chest by depression bar, avoid square chest in the time of cast to become flexible or slide, improve the reliability of fixture, improve the casting quality of product, like this, can regulate top extension elongation by rotation knurled nut, realize fast replacing blade, save time, and simple in structure, easy for installation, convenient operation, the degree of accuracy of raising equipment processing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is left view of the present utility model;
Fig. 4 is top view of the present utility model;
Fig. 5 is the local enlarged diagram of A in Fig. 2;
Wherein: 1-blade root dead head, 2-thimble, 3-alignment pin, 4-base plate, 5-is top, 6-lining, 7-knurled nut, 8-spring, 9-leaf top positioning seat, 10-connecting rod, 11-depression bar, 12-support bar, 13-pressure head, 14-square chest, 15-blade.
Detailed description of the invention
Below the utility model is described in further detail:
embodiment 1
A kind of steam turbine die forging blade special fixture that the present embodiment provides, comprise horizontally disposed base plate 4, be respectively equipped with blade root dead head 1 and leaf top positioning seat 9 at base plate 4 upper surfaces two ends along its length, on blade root dead head 1 and leaf top positioning seat 9, be equipped with the thimble 2 for fixing steam turbine die forging blade, thimble 2 comprises top 5, lining 6, knurled nut 7 and spring 8, lining 6 is located on top 5 cylindricals by the inner hole sleeve being provided with along its length side, on lining 6 cylindricals, one end is provided with screw thread, the other end extends outward step, between threaded one end of lining 6 and top 5, be also provided with the spring 8 being set on top 5, outside is stretched in the perforation that lining 6 is all provided with through blade root dead head 1 and leaf top positioning seat 9 and threaded one end, knurled nut 7 is threaded connection and is fixed on the threaded one end of lining 6, can regulate top 5 extension elongation by rotation knurled nut 7, can regulate top extension elongation by rotation knurled nut, realize fast replacing blade, save time, and simple in structure, easy for installation, convenient operation,
Be provided with support bar 12 and connecting rod 10 in a side of base plate 4 upper surfaces and between blade root dead head 1 and leaf top positioning seat 9, one end of support bar 12 is vertically fixed on base plate 4 by screw, the other end of support bar 12 is hinged with the depression bar 11 that can freely rotate, depression bar 11 is hinged on support bar 12 by straight pin, and the other end of depression bar 11 offers the U-lag of up/down perforation; Connecting rod 10 one end are fixed on base plate 4, and the other end is connected and fixed connecting rod 10 and depression bar 11 by nut through the U-lag of depression bar 11;
On depression bar 11, be also provided with pressure head 13, pressure head 13 is triangular shape, through the through hole of offering on depression bar 11 and pressure head 13, pressure head 13 is fixed on depression bar 11 successively by straight pin, pressure head 13 can freely rotate along straight pin, and pressure head 13 is positioned at the bottom of one side protrusion depression bar 11 of depression bar 11 lower ends, can firmly compress square chest by pressure head, avoid square chest in the time of cast to become flexible or slide, improve the reliability of fixture, improve the casting quality of product, and simple in structure, on base plate 4, be also provided with the alignment pin 3 for locating steam turbine die forging blade, avoid square chest in the time of cast to become flexible or slide, guarantee the quality of cast, the reliability and stability of raising equipment.
The course of work of the present embodiment: first by square chest and turbine blade fit, then put into together fixture, the blade root of turbine blade and leaf top are fixed on blade root dead head 1 and leaf top positioning seat 9 by thimble 2 respectively; Square chest is located by alignment pin 3, then depression bar 11 and connecting rod 10 are connected and fixed by nut, utilize pressure head 13 on depression bar 11 compression square chest tightly, finally start to square chest cast low-melting alloy, blade and square chest to be connected as one.
By the technical solution of the utility model, not only processing cost is low, simple in structure like this, fixation, and also dismounting is simple, and easy to use, energy quick-replaceable blade, the rate of reducing the number of rejects and seconds, cost-saving, improve working (machining) efficiency, the degree of accuracy of raising equipment processing.
Above embodiment is only explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every technological thought according to the utility model proposes, any change of doing on technical scheme basis, within all falling into the utility model protection domain.
Claims (5)
1. a steam turbine die forging blade special fixture, comprise horizontally disposed base plate (4), it is characterized in that: be respectively equipped with blade root dead head (1) and leaf top positioning seat (9) at described base plate (4) upper surface two ends along its length, on described blade root dead head (1) and leaf top positioning seat (9), be equipped with the thimble (2) for fixing steam turbine die forging blade, a side of described base plate (4) upper surface and be positioned at blade root dead head (1) and leaf top positioning seat (9) between be provided with support bar (12) and connecting rod (10), one end of described support bar (12) is vertically fixed on described base plate (4) by securing member, the other end of support bar (12) is hinged with the depression bar (11) that can freely rotate, at the vertically fixing described connecting rod (10) of the upper side relative with described support bar (12) of described base plate (4), described connecting rod (10) top is connected away from one end of support bar (12) with depression bar (11) by securing member.
2. steam turbine die forging blade special fixture according to claim 1, it is characterized in that: described thimble (2) comprises top (5), lining (6), knurled nut (7) and spring (8), described lining (6) is located on top (5) cylindrical by the inner hole sleeve being provided with along its length side, on described lining (6) cylindrical, one end is provided with screw thread, the other end extends outward step, between the threaded one end of described lining (6) and top (5), be also provided with the spring (8) being set on top (5), outside is stretched in the perforation that described lining (6) is all provided with through blade root dead head (1) and leaf top positioning seat (9) and threaded one end, described knurled nut (7) is threaded connection and is fixed on the threaded one end of lining (6), can regulate the extension elongation of top (5) by rotation knurled nut (7).
3. steam turbine die forging blade special fixture according to claim 1, it is characterized in that: on described depression bar (11), be also provided with pressure head (13), described pressure head (13) is triangular shape, through the through hole of offering on depression bar (11) and pressure head (13), pressure head (13) is fixed on depression bar (11) successively by straight pin, described pressure head (13) can freely rotate along straight pin, and described pressure head (13) is positioned at the bottom of one side protrusion depression bar (11) of depression bar (11) lower end.
4. steam turbine die forging blade special fixture according to claim 1, is characterized in that: it is upper that described depression bar (11) is hinged on support bar (12) by straight pin, and the other end of depression bar (11) offers the U-lag of up/down perforation; It is upper that described connecting rod (10) one end is fixed on base plate (4), and the other end is connected and fixed connecting rod (10) and depression bar (11) by nut through the U-lag of depression bar (11).
5. steam turbine die forging blade special fixture according to claim 1, is characterized in that: on described base plate (4), be also provided with the alignment pin (3) for locating steam turbine die forging blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434242.7U CN203992329U (en) | 2014-08-01 | 2014-08-01 | A kind of steam turbine die forging blade special fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434242.7U CN203992329U (en) | 2014-08-01 | 2014-08-01 | A kind of steam turbine die forging blade special fixture |
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| Publication Number | Publication Date |
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| CN203992329U true CN203992329U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420434242.7U Active CN203992329U (en) | 2014-08-01 | 2014-08-01 | A kind of steam turbine die forging blade special fixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190904A (en) * | 2014-08-01 | 2014-12-10 | 南京赛达机械制造有限公司 | Fixture special for steam turbine die forging blades |
| CN110370044A (en) * | 2019-07-29 | 2019-10-25 | 无锡市艾尔福叶片有限公司 | Steam turbine blade center hole machining clamp and its clamping method |
-
2014
- 2014-08-01 CN CN201420434242.7U patent/CN203992329U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190904A (en) * | 2014-08-01 | 2014-12-10 | 南京赛达机械制造有限公司 | Fixture special for steam turbine die forging blades |
| CN110370044A (en) * | 2019-07-29 | 2019-10-25 | 无锡市艾尔福叶片有限公司 | Steam turbine blade center hole machining clamp and its clamping method |
| CN110370044B (en) * | 2019-07-29 | 2023-03-28 | 无锡市艾尔福叶片有限公司 | Center hole machining clamp for steam turbine moving blade and clamping method thereof |
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