CN203092194U - Positioning fixture for processing fungus-shaped blade roots - Google Patents

Positioning fixture for processing fungus-shaped blade roots Download PDF

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Publication number
CN203092194U
CN203092194U CN 201220738116 CN201220738116U CN203092194U CN 203092194 U CN203092194 U CN 203092194U CN 201220738116 CN201220738116 CN 201220738116 CN 201220738116 U CN201220738116 U CN 201220738116U CN 203092194 U CN203092194 U CN 203092194U
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CN
China
Prior art keywords
plate
clamp body
positioning
pilot hole
rotary pressure
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Expired - Lifetime
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CN 201220738116
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Chinese (zh)
Inventor
王梦熊
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DEC Dongfang Turbine Co Ltd
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DEC Dongfang Turbine Co Ltd
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Priority to CN 201220738116 priority Critical patent/CN203092194U/en
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Publication of CN203092194U publication Critical patent/CN203092194U/en
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Abstract

The utility model discloses a positioning fixture for processing fungus-shaped blade roots. The positioning fixture for processing the fungus-shaped blade roots comprises a base plate and a fixture body, wherein the base plate is fixed on a work platform of a milling machine, the fixture body is fixed on the base plate, the fixture body is provided with an outer end surface and a positioning surface and the outer end surface and the positioning surface are adjacent, a first molded line groove is formed in the outer end surface, an upper rotating press plate and a lower rotating press plate are installed on the positioning surface of the fixture body in a matched mode through swing bolts and limiting pins, the end sides of the upper rotating press plate and the lower rotating press plate are located on the end portion of the first molded line groove in a corresponding mode, the upper rotating press plate and the lower rotating press plate are used for clamping a blade to be processed, a radial surface positioning plate is fixed on the positioning surface of the fixture body, a second molded line groove which corresponds with the first molded line groove of the fixture body is formed in the radial surface positioning plate, and a blade steam outlet side positioning plate is arranged on the base plate below the radial surface positioning plate. The positioning fixture for processing the fungus-shaped blade roots is high in positioning accuracy of the blade to be processed, accuracy of molded lines of processed and formed fungus-shaped blade roots can be easily guaranteed, a qualification rate is high, product quality is effectively improved, and production cost of enterprises is reduced.

Description

The positioning fixture of bacterial type blade root processing usefulness
Technical field
The utility model relates to the process equipment of turbine blade, specifically is a kind of positioning fixture of bacterial type blade root processing usefulness.
Background technology
The blade root of turbine blade is the important assembling position that is connected with impeller, its machining accuracy is directly determining the assembly quality with impeller, and affect the security of operation and the mechanical efficiency of turbine blade, therefore, turbine blade is all very high to the required precisions such as processing dimension, form and position tolerance and surface roughness of blade root molded lines.The blade root molded lines of turbine blade has a variety of, for example T type, forked type, fir-tree type, bacterial type etc., wherein especially more complicated with the molded lines of bacterial type blade root, thereby the difficulty of processing of bacterial type blade root molded lines is very big, its process mainly be divided in advance mill, rough mill, multiple working procedure such as half finish-milling, finish-milling, problem such as whole process exists that allowance is big, the difficult processing of material, cutting force are big, the processed and molded product precision is difficult to guarantee, the scrappage height, directly influence the quality and the output of product, increased enterprise's production cost.By long-term processing summary of experience and to the analysis of bacterial type blade root molded lines, why difficult the processing of bacterial type blade root, machining accuracy low, is that school mould difficulty, positioning accuracy are low because bacterial type blade root blade processing positioning fixture commonly used at present exists, clamp body poor rigidity, unhandy defective.
Summary of the invention
The purpose of this utility model is: at above-mentioned the deficiencies in the prior art, provide a kind of bacterial type blade root simple in structure, easy to operate, that positioning accuracy is high, reliable and practical to process the positioning fixture of usefulness.
The technical solution adopted in the utility model is: a kind of positioning fixture of bacterial type blade root processing usefulness comprises base plate and clamp body; Described base plate is fixed on the workbench of milling machine; Described clamp body is fixed on the base plate, this clamp body has adjacent outer face and locating surface, the outer face is provided with the first molded lines groove, be equipped with rotary pressure plate and following rotary pressure plate by eyelet bolt and spacer pin on the locating surface of clamp body, the barrel portion of last rotary pressure plate and following rotary pressure plate cooperates with second pilot hole and the 3rd pilot hole on the clamp body respectively, the end limit correspondence of last rotary pressure plate and following rotary pressure plate is in the end of the first molded lines groove, last rotary pressure plate and following rotary pressure plate are as clamping blade to be processed, be fixed with the sagittal plane location-plate on the locating surface of described clamp body, on the sagittal plane location-plate, be provided with and the corresponding second molded lines groove of the first molded lines groove of clamp body; The base plate of described sagittal plane location-plate below is provided with blade steam output side location-plate.
Also be fixed with top body on the described base plate, top body and clamp body have certain distance, and this distance is corresponding with the length of blade to be processed; Described top body is provided with first pilot hole towards clamp body, toply packs in first pilot hole of top body by lining, and top front end extends from first pilot hole, and the top usefulness clamped vane top of opposing positions.
Described top be "T"-shaped structure, be set with first back-moving spring between the top rear portion and the end face of lining; And the first pilot hole rear end of described top body is equipped with the feeding bolt, and is top to jacking by the feeding bolt shaft.
The outer end of described blade steam output side location-plate is provided with the limiting stand of projection; The top of described clamp body outer face is provided with the end face location-plate, and the inner face of this end face location-plate flushes with the limiting stand inner face of blade steam output side location-plate.
The eyelet bolt that connects rotary pressure plate and following rotary pressure plate on the described clamp body passes second pilot hole and the 3rd pilot hole on the clamp body respectively, hinged with the lever top and bottom at the clamp body back side by attachment pegs, be respectively installed with second back-moving spring on the eyelet bolt in second pilot hole and the 3rd pilot hole.
Be provided with the supporting nail between described lever and the clamp body, and be provided with the adjustment screw of distance between adjustment (adjusting) lever and the clamp body on the lever.
The bottom surface of described base plate is provided with positioning spline, and the structure centre line of the center line of this positioning spline and clamped blade and top axis extended line place are at grade.
The contour shape of the described first molded lines groove and the second molded lines groove is corresponding with the bacterial type blade root molded lines contour shape of blade to be processed.
The beneficial effects of the utility model are: above-mentioned positioning fixture is put on the centralized positioning key that presets on the milling machine table by the positioning spline of base plate bottom surface, and quick centering, realization are in place when making anchor clamps school mould; Blade steam output side location-plate on sagittal plane location-plate on the clamp body, end face location-plate and the base plate can be realized accurately, locate reliably blade to be processed, can not influence positioning accuracy because of the wearing and tearing and the rigidity of clamp body, sagittal plane location-plate, end face location-plate, last rotary pressure plate, following rotary pressure plate and blade steam output side location-plate are changed very convenient, replacement cost is low, effectively prolonged the service life of whole positioning fixture, practical; In addition, not only can strengthen rigidity to the blade of blade to be processed to leaf top bit by top on the top body, and can also realize effectively vane top, location reliably, further improve the workpiece positioning accuracy; The blade root molded lines precision of the utility model machine-shaping guarantees that easily the qualification rate height effectively reduces enterprise's production cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to schematic diagram.
Code name implication among the figure: 1-end face location-plate; 2-clamp body; 3-sagittal plane location-plate; 4-blade steam output side location-plate; 5-upward rotary pressure plates; 6-eyelet bolt; 7-spacer pin; 8-following rotary pressure plate; 9-top; 10-lining; 11-the first back-moving spring; 12-end cap; 13-the second trip bolt; 14-feeding bolt; 15-top body; 16-base plate; 17-the second molded lines groove; 18-the first trip bolt; 19-alignment pin; 20-the first molded lines groove; 21-limiting stand; 22-the first pilot hole; 23-clamp nut; 24-the second pilot hole; 25-the second back-moving spring; 26-attachment pegs; 27-lever; 28-supporting nail; 29-adjustment screw; 30-the three pilot hole; 31-positioning spline.
The specific embodiment
Referring to Fig. 1 and Fig. 2: the utility model comprises base plate 16, clamp body 2 and top body 15.
Wherein, the bottom surface of base plate 16 is a platen surface, as contacting with the workbench of milling machine.On the bottom surface of base plate 16, be provided with positioning spline 31, this positioning spline 31 is as cooperating with the centralized positioning key that presets on the milling machine table, the center line of positioning spline 31 should with top 9 axis extended line place on the structure centre line of clamped blade and the top body 15 at grade, realize quick centering in the time of so just guaranteeing anchor clamps school mould, be in place.The end face of base plate 16 is concrete 2 as geometrical clamp, top body 15 and blade steam output side location-plate 4.
Clamp body 2 is fixed on the end angle place of base plate 16 end faces one end, this clamp body 2 have adjacent outer face (with base plate 16 end faces towards consistent) and locating surface (towards the inboard of base plate 16).The middle part, outer face of clamp body 2 is provided with the first molded lines groove 20, the contour shape of the first molded lines groove 20 is corresponding with the bacterial type blade root molded lines contour shape of blade to be processed, be fixed with end face location-plate 1 by screw on clamp body 2 outer faces above the first molded lines groove 20, extend downwards the bottom of end face location-plate 1.Be fixed with sagittal plane location-plate 3 by first trip bolt 18 and alignment pin 19 on the locating surface of clamp body 2, be provided with the first molded lines groove, the 20 corresponding second molded lines grooves 17 with clamp body 2 on sagittal plane location-plate 3, promptly the contour shape of the second molded lines groove 17 is also corresponding with the bacterial type blade root molded lines contour shape of blade to be processed.On the clamp body 2 of sagittal plane location-plate 3 above and belows, also be equipped with rotary pressure plate 5 and following rotary pressure plate 8 by eyelet bolt 6, spacer pin 7, the barrel portion of last rotary pressure plate 5 and following rotary pressure plate 8 cooperates with second pilot hole 24 and the 3rd pilot hole 30 on the clamp body 2 respectively, the end limit correspondence of last rotary pressure plate 5 and following rotary pressure plate 8 flushes with the second molded lines groove 17 at the second molded lines groove 17(, the first molded lines groove 20) the end, last rotary pressure plate 5 is used as clamping blade to be processed with following rotary pressure plate 8.An end of the eyelet bolt 6 of rotary pressure plate 5 and following rotary pressure plate 8 is respectively fitted with the side of clamp nut 23(at last rotary pressure plate 5 and following rotary pressure plate 8 in the connection), by tightening or unscrew the clamp nut 23 on the eyelet bolt 6,8 pairs of blades of rotary pressure plate 5 and following rotary pressure plate clamp in the realization tightly, looseness, realize clamping, dismounting to blade to be processed with this; The other end of the eyelet bolt 6 of rotary pressure plate 5 and following rotary pressure plate 8 passes second pilot hole 24 and the 3rd pilot hole 30 on the clamp body 2 respectively in the connection, hinged with lever 27 top and bottom at clamp body 2 back sides by attachment pegs 26, be respectively installed with second back-moving spring 25 on the eyelet bolt 6 in second pilot hole 24 and the 3rd pilot hole 30, be provided with supporting nail 28 between lever 27 and the clamp body 2, and at the adjustment screw 29 that is provided with distance between adjustment (adjusting) lever 27 and the clamp body 2 on the lever 27.
Blade steam output side location-plate 4 is fixed on the base plate 16 of sagittal plane location-plate 3 belows.The outer end of blade steam output side location-plate 4 (with the outer face of base plate 16 end faces, clamp body 2 towards consistent) be provided with the limiting stand 21 of projection, the inner face of the end face location-plate 1 on the inner face of this limiting stand 21 and the clamp body 2 flushes, and the outer face of limiting stand 21 also flushes with the outer face of end face location-plate 1 on the clamp body 2.
Top body 15 is fixed on the other end of base plate 16 end faces, and top body 15 has certain distance with clamp body 2, and this distance is corresponding with the length of blade to be processed.On top body 15, be provided with first pilot hole 22 towards clamp body 2, first pilot hole 22 specifically should be towards the place, space of upper and lower rotary pressure plate and sagittal plane location-plate 3, and positioning spline 31 centerline of its axis extended line and base plate 16 bottom surfaces at grade.In first pilot hole 22, be equipped with top 9 by lining 10, this top 9 is "T"-shaped structure, top 9 front end extends from the front end (towards clamp body 2) of first pilot hole 22, top 9 rear portion is in first pilot hole 22, is set with first back-moving spring 11 between top 9 the rear portion and first pilot hole 22.On the top body 15 of first pilot hole, 22 rear ends, be equipped with end cap 12 by second trip bolt 13, on end cap 12, be provided with the feeding bolt 14 that extends into first pilot hole 22, by axially jacking top 9 of feeding bolt 14, make top 9 further to stretch out, the top 9 usefulness clamped vane top of opposing positions.

Claims (8)

1. the positioning fixture of a bacterial type blade root processing usefulness comprises base plate (16) and clamp body (2); Described base plate (16) is fixed on the workbench of milling machine; Described clamp body (2) is fixed on the base plate (16), this clamp body (2) has adjacent outer face and locating surface, the outer face is provided with the first molded lines groove (20), be equipped with rotary pressure plate (5) and following rotary pressure plate (8) by eyelet bolt (6) and spacer pin (7) on the locating surface of clamp body (2), the barrel portion of last rotary pressure plate (5) and following rotary pressure plate (8) cooperates with second pilot hole (24) and the 3rd pilot hole (30) on the clamp body (2) respectively, the end limit correspondence of last rotary pressure plate (5) and following rotary pressure plate (8) is in the end of the first molded lines groove (20), last rotary pressure plate (5) and following rotary pressure plate (8) are as clamping blade to be processed, it is characterized in that: be fixed with sagittal plane location-plate (3) on the locating surface of described clamp body (2), on sagittal plane location-plate (3), be provided with the corresponding second molded lines groove (17) of the first molded lines groove (20) with clamp body (2); The base plate (16) of described sagittal plane location-plate (3) below is provided with blade steam output side location-plate (4).
2. process the positioning fixture of usefulness according to the described bacterial type blade root of claim 1, it is characterized in that: also be fixed with top body (15) on the described base plate (16), top body (15) has certain distance with clamp body (2), and this distance is corresponding with the length of blade to be processed; Described top body (15) is provided with first pilot hole (22) towards clamp body (2), pack into by lining (10) in first pilot hole (22) of top body (15) top (9), the front end of top (9) extends from first pilot hole (22), and top (9) position with the clamped vane top of opposing.
3. according to the positioning fixture of the described bacterial type blade root processing of claim 2 usefulness, it is characterized in that: described top (9) are set with first back-moving spring (11) for "T"-shaped structure between the end face of the rear portion of top (9) and lining (10); And first pilot hole (22) rear end of described top body (15) is equipped with feeding bolt (14), by axially jacking top (9) of feeding bolt (14).
4. according to the positioning fixture of the described bacterial type blade root processing of claim 1 usefulness, it is characterized in that: the outer end of described blade steam output side location-plate (4) is provided with the limiting stand (21) of projection; The top of described clamp body (2) outer face is provided with end face location-plate (1), and the inner face of this end face location-plate (1) flushes with limiting stand (21) inner face of blade steam output side location-plate (4).
5. process the positioning fixture of usefulness according to the described bacterial type blade root of claim 1, it is characterized in that: the eyelet bolt (6) that connects rotary pressure plate (5) and following rotary pressure plate (8) on the described clamp body (2) passes second pilot hole (24) and the 3rd pilot hole (30) on the clamp body (2) respectively, hinged with lever (27) top and bottom at clamp body (2) back side by attachment pegs (26), be respectively installed with second back-moving spring (25) on the eyelet bolt (6) in second pilot hole (24) and the 3rd pilot hole (30).
6. process the positioning fixture of usefulness according to the described bacterial type blade root of claim 5, it is characterized in that: be provided with supporting nail (28) between described lever (27) and the clamp body (2), and at the adjustment screw (29) that is provided with distance between adjustment (adjusting) lever (27) and the clamp body (2) on the lever (27).
7. process the positioning fixture of usefulness according to the described bacterial type blade root of claim 1, it is characterized in that: the bottom surface of described base plate (16) is provided with positioning spline (31), and the axis extended line place of the center line of this positioning spline (31) and the structure centre line of clamped blade and top (9) at grade.
8. according to the positioning fixture of the described bacterial type blade root processing of claim 1 usefulness, it is characterized in that: the contour shape of the described first molded lines groove (20) and the second molded lines groove (17) is corresponding with the bacterial type blade root molded lines contour shape of blade to be processed.
CN 201220738116 2012-12-28 2012-12-28 Positioning fixture for processing fungus-shaped blade roots Expired - Lifetime CN203092194U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220738116 CN203092194U (en) 2012-12-28 2012-12-28 Positioning fixture for processing fungus-shaped blade roots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220738116 CN203092194U (en) 2012-12-28 2012-12-28 Positioning fixture for processing fungus-shaped blade roots

Publications (1)

Publication Number Publication Date
CN203092194U true CN203092194U (en) 2013-07-31

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CN 201220738116 Expired - Lifetime CN203092194U (en) 2012-12-28 2012-12-28 Positioning fixture for processing fungus-shaped blade roots

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586712A (en) * 2013-10-28 2014-02-19 哈尔滨汽轮机厂有限责任公司 Fixture for clamping steam inlet and outlet sides of intermediates of blade roots during milling
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
CN106624936A (en) * 2016-12-16 2017-05-10 四川绵竹鑫坤机械制造有限责任公司 Auxiliary clamping device for die forging blades
CN106625337A (en) * 2016-12-28 2017-05-10 无锡透平叶片有限公司 Root positioning mechanism for T root blade profile detection of steam turbine
CN107843174A (en) * 2017-12-04 2018-03-27 无锡透平叶片有限公司 The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body
CN108381234A (en) * 2018-05-08 2018-08-10 贵州工程应用技术学院 Jun type blade processing fixture and clamping processing method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586712A (en) * 2013-10-28 2014-02-19 哈尔滨汽轮机厂有限责任公司 Fixture for clamping steam inlet and outlet sides of intermediates of blade roots during milling
CN103586712B (en) * 2013-10-28 2016-07-13 哈尔滨汽轮机厂有限责任公司 A kind of milling blade root intermediate enters steam output side folder fixture
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
CN106624936A (en) * 2016-12-16 2017-05-10 四川绵竹鑫坤机械制造有限责任公司 Auxiliary clamping device for die forging blades
CN106625337A (en) * 2016-12-28 2017-05-10 无锡透平叶片有限公司 Root positioning mechanism for T root blade profile detection of steam turbine
CN107843174A (en) * 2017-12-04 2018-03-27 无锡透平叶片有限公司 The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body
CN108381234A (en) * 2018-05-08 2018-08-10 贵州工程应用技术学院 Jun type blade processing fixture and clamping processing method
CN108381234B (en) * 2018-05-08 2023-09-12 贵州工程应用技术学院 Blade processing clamp and clamping processing method

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Granted publication date: 20130731

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