CN203092331U - Self-adaption clamping tool for blade machining - Google Patents
Self-adaption clamping tool for blade machining Download PDFInfo
- Publication number
- CN203092331U CN203092331U CN 201220725674 CN201220725674U CN203092331U CN 203092331 U CN203092331 U CN 203092331U CN 201220725674 CN201220725674 CN 201220725674 CN 201220725674 U CN201220725674 U CN 201220725674U CN 203092331 U CN203092331 U CN 203092331U
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- blade
- clamping
- conical sleeve
- clamp
- shell
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Abstract
The utility model provides a self-adaption clamping tool for blade machining. The self-adaption clamping tool for the blade machining only conducts unstressed clamping and does not locate blades. Positioning of a blade in a clamp is finished in advance by a positioning clamp, and a control point of a blade body serves as a positioning point when the blade is positioned. A suitable clamping angle can be found by means of a spherical surface juncture, small clearance fit is is applied to an inner hole of an outer conical sleeve and the spherical surface juncture, the outer conical surface of the outer conical sleeve is contacted with an inner conical surface of an outer shell, the outer shell axially moves so that the outer conical sleeve is made to generate radial clamping force to clamp the spherical surface juncture tightly, the end portion of the blade is fixed on an outer exposed end surface of the spherical surface juncture, and clamping of the end portion of the blade can be achieved finally. Due to the fact that the outer shell is not directly contacted with a machine tool, the outer conical sleeve does not generate axial movement in the whole clamping process, only the outer shell moves relative to the outer conical sleeve so as to generate the radial clamping force to clamp the spherical surface tightly without generation of axial frictional force on the spherical surface, and the inner portion of the blade can not generate clamping force due to the fact that the clamping standard of two ends of the blade deviates when the blade body of the blade, the intake side of the blade and the exhaust side of the blade are machined.
Description
Technical field
The utility model belongs to the Machining Technology field, is specifically related to a kind of blade processing self adaptation clamping tool.
Background technology
Aircraft engine blade and turbine blade belong to the thin-walled parts of deep camber, the conventional fabrication processes of blade mainly contains three kinds, be respectively: milling added manual polishing and chemical light decorations again after manual polishing added after chemical light decorations, the die forging Electrolyzed Processing again and adds manual polishing and chemical light decorations, die forging again behind the finish forge, had occurred the technological process that grinding after the die forging adds the chemical light decorations more at present.Along with the raising that engine performance requires, the precision of blade also to be had higher requirement, the manufacturing of blade also can progressively carry out the transition to the technological process that grinding adds the chemical light decorations again.On grinding machine to the blade of blade, need carry out clamping to blade when grinding is carried out on the intake and exhaust limit, the clamping of blade generally is by to blade tenon, perhaps the technology lug at blade two ends positions, clamps realization, the technology lug at two ends generally is a cylinder of making cylinder or band centre bore, and one end be two centre bores, the other end is the version of single centre bore.
In blade processing, because blade belongs to thin-walled parts, blade distortion can occur in process, cause the location at blade two ends to clamp the relative blade occurrence positions of benchmark and wander away, and the position degree varies of wandering away causes; Clamp blade if re-use general locating clip clamper, when locating, clamping can make blade interior produce bigger clamping stress and clamping deformation, machine the rear blade clamping deformation and disappear, form accuracy and the inconsistent phenomenon of form accuracy that adds man-hour after blade unclamps clamping will occur.
The utility model content
The purpose of this utility model is to provide a kind of blade processing self adaptation clamping tool.
For achieving the above object, the utility model has adopted following technical scheme:
Comprise bracing frame and the mounting flange that links to each other with bracing frame, be provided with eccentric bushing in the bracing frame, be provided with rotating shaft in the eccentric bushing, one end of external conical sleeve leans against on the bracing frame, in the shell that the other end is inserted in rotating shaft links to each other, external conical sleeve adopts the conical surface to contact with shell, is provided with ball-joint in the external conical sleeve, the sphere of ball-joint matches with external conical sleeve, ball-joint be arranged at the anchor clamps that outer being used to of shell clamp blade and link to each other.
Support frame as described above is provided with counterbore, is provided with spring in the counterbore, and an end of spring is pressed into the counterbore bottom, and the other end withstands on the shell.
The described anchor clamps that are used to clamp blade comprise the clamping seats that links to each other with ball-joint, be arranged at the V-type seat in the clamping seats and be used for the tenon of blade or technology lug are pressed on active pressure head on the V-type seat.
Described active pressure head comprises the screw of dribbling head, and the screw of dribbling head links to each other with first cover plate that is arranged at the clamping seats upper end.
The lower end of described clamping seats is provided with base plate, the V-type seat respectively be arranged at base plate on spring and the guider screw that is arranged on the clamping seats sidewall link to each other.
Described clamping seats is provided with second cover plate that prevents that the V-type seat from coming off vertically.
The beneficial effects of the utility model are embodied in:
The utility model is only done unstressed clamping, blade is not located, the location of blade in anchor clamps finished by positioning fixture in advance, during the location with the blade control point as anchor point, the utility model is suffered from one's own actions just right clamping angle by ball-joint, external conical sleeve and ball-joint adopt little matched in clearance, the male cone (strobilus masculinus) of external conical sleeve contacts with the internal taper hole of shell, shell moves axially and makes external conical sleeve produce radially clamping force clamping balls joint, blade tip is fixed on exposing on the end face of ball-joint, finally realizes the clamping to blade tip.Because shell directly is not connected with lathe, whole clamping process external conical sleeve does not produce and moves axially, have only shell to move relative to external conical sleeve, producing radially, clamping force clamps sphere, can not produce axial friction to sphere, just can not make blade be subjected to axial tension yet, make blade add man-hour at blade and intake and exhaust limit, blade interior can not wandered away because of two ends clamping benchmark and clamping stress be occurred.
Technical characterictic of the present utility model:
1) sphere has been avoided clamping stress from centering;
2) moving the realization sphere by enclosure axis to trace clamps;
When 3) clamping blade, blade does not produce axial displacement, therefore can not produce axial clamping stress.
4) has stronger practicality.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to partial schematic diagram;
Among the figure: mounting flange 300, bracing frame 301, rotating shaft 302, eccentric bushing 303, external conical sleeve 304, shell 305, ball-joint 306, the first cover plates 307, clamping seats 308, second cover plate 309, base plate 310, screw 311, the screw 312 of dribbling head, active pressure head 313, V-type seat 314, guider screw 315, spring 316.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1 and Fig. 2, blade processing self adaptation clamping tool described in the utility model, comprise bracing frame 301 and the mounting flange 300 that links to each other with bracing frame 301, be provided with eccentric bushing 303 in the bracing frame 301, be provided with rotating shaft 302 in the eccentric bushing 303, one end of external conical sleeve 304 leans against on the bracing frame 301, the other end is inserted in the shell 305 that links to each other with rotating shaft 302, external conical sleeve 304 adopts the conical surface to contact with shell 305, be provided with ball-joint 306 in the external conical sleeve 304, the sphere of ball-joint 306 matches with external conical sleeve 304, ball-joint 306 be arranged at the anchor clamps that outer being used to of shell 305 clamp blade and link to each other, support frame as described above 301 is provided with counterbore, is provided with spring 316 in the counterbore, and an end of spring 316 is pressed into the counterbore bottom, the other end withstands on the shell 305, the effect of spring is to loosen when clamping, and shell 305 springs back to release position, makes external conical sleeve 304 loosen sphere.
The described anchor clamps that are used to clamp blade comprise the clamping seats 308 that links to each other with ball-joint 306, be arranged at the V-type seat 314 in the clamping seats 308 and be used for the tenon of blade or technology lug are pressed on active pressure head 313 on the V-type seat 314, described active pressure head 313 comprises the screw 312 of dribbling head, the screw 312 of dribbling head links to each other with first cover plate 307 that is arranged at clamping seats 308 upper ends, the lower end of described clamping seats 308 is provided with base plate 310, V-type seat 314 respectively be arranged at base plate 310 on spring and the guider screw 315 that is arranged on clamping seats 308 sidewalls link to each other, described clamping seats 308 is provided with second cover plate 309 that prevents that V-type seat 314 from coming off vertically.
The clamping means of above-mentioned blade processing self adaptation clamping tool may further comprise the steps:
1) blade is positioned with positioning fixture;
2) through after the step 1), mounting flange 300 is linked to each other with the machine tool rotary headstock;
3) through step 2) after, clamp with the tenon or the technology lug of the anchor clamps that clamp blade blade; The concrete grammar of described step 3) is: the tenon of blade or the technology lug at blade two ends are placed in the V-type seat 314, compress with active pressure head 313 then;
4) through revolution rotating shaft 302 after the step 3), rotating shaft 302 drives eccentric bushing 303 revolutions, makes eccentric bushing 303 act on bracing frame 301, then under the effect of reaction force, rotating shaft 302 drives shell 305 and moves, and makes external conical sleeve 304 radial contraction, clamping balls joint 306.
Embodiment
A kind of self adaptation clamping tool in the blade processing, mounting flange 300 links to each other with the machine tool rotary headstock by screw, and fixing with bracing frame 301; External conical sleeve 304 axially leans against on the bracing frame 301, external conical sleeve 304 and ball-joint 306 little matched in clearance (gap 0.02mm is to 0.08mm), external conical sleeve 304 male cone (strobilus masculinus)s adopt the 1:10 conical surface to contact with shell 305, eccentric bushing 303 is fixed in the rotating shaft 302, and 6 springs 316 are contained in the counterbore of bracing frame 301.
When needing to clamp, by screw 311 revolution rotating shafts 302, drive eccentric bushing 303 revolutions, eccentric bushing is compressed at the bottom of bracing frame 301 right ports, under the effect of reaction force, rotating shaft 302 drives shell 305 and is moved to the left, and drives external conical sleeve 304 radial contraction, clamping balls joint 306, ball-joint 306 clamped with the end (the technology lugs at tenon or blade two ends) of blade before clamping.
The clamping of the end of blade in anchor clamps is achieved in that clamping seats 308 cooperates with the external part cylindrical of ball-joint 306 by the hole and is fastening with a head screw; A cover plate is fixed on clamping seats 308 upper ends, is used for the screw 312 of mounting strap bulb; Another cover plate is fixed on clamping seats 308 front ends, is used to prevent that V-type seat 314 from coming off vertically; Base plate 310 is fixed on clamping seats 308 bottoms, and spring is housed on the base plate, prevents that V-type seat 314 from radially coming off on the one hand, and on the other hand, the spring on the base plate pops up V-type seat 314, holds the blade retained part; The V-type seat moves up and down guiding to be undertaken by guider screw 315, moves into place the back and props up tight V-type seat 314 with screw; The technology lug at the tenon of blade or blade two ends is placed in the V-type seat 314, compresses by active pressure head 313; Active pressure head 313 is tight by 312 on the screw of dribbling head, and active pressure head guarantees that blade is clamped in the V-type seat 314 reliably.
Technical characterictic in the technical scheme is specifically embodied by following structure:
1) sphere has been avoided clamping stress from centering;
It between external conical sleeve 304 and the ball-joint 306 the little matched in clearance of sphere and endoporus (gap 0.02mm is to 0.08mm), ball-joint 306 is not when clamping, the swing that can be in the endoporus of external conical sleeve 304 produces certain angle in the plane that is parallel to paper, and can also can move among a small circle vertically circumferentially carrying out 360 degree revolutions.Active pressure head 313 is tight by 312 on the screw of dribbling head, and active pressure head guarantees that blade is clamped in the V-type seat 314 reliably.The sphere at this two place can both carry out having avoided clamping stress from centering.
2) spring housing moves by axial trace and realizes that sphere clamps;
When 3) clamping blade, therefore blade does not produce axial displacement can not produce axial clamping stress.
In actual use, this anchor clamps can use in pairs, clamp the blade two ends respectively, and blade will be finished the location earlier in positioning fixture before clamping, use this clamp again.
Claims (6)
1. blade processing self adaptation clamping tool, it is characterized in that: comprise bracing frame (301) and the mounting flange (300) that links to each other with bracing frame (301), be provided with eccentric bushing (303) in the bracing frame (301), be provided with rotating shaft (302) in the eccentric bushing (303), one end of external conical sleeve (304) leans against on the bracing frame (301), the other end is inserted in the shell (305) that links to each other with rotating shaft (302), external conical sleeve (304) adopts the conical surface to contact with shell (305), be provided with ball-joint (306) in the external conical sleeve (304), the sphere of ball-joint (306) matches with external conical sleeve (304), ball-joint (306) be arranged at the anchor clamps that outer being used to of shell (305) clamp blade and link to each other.
2. according to the described a kind of blade processing self adaptation clamping tool of claim 1, it is characterized in that: support frame as described above (301) is provided with counterbore, be provided with spring (316) in the counterbore, an end of spring (316) is pressed into the counterbore bottom, and the other end withstands on the shell (305).
3. according to the described a kind of blade processing self adaptation clamping tool of claim 1, it is characterized in that: the described anchor clamps that are used to clamp blade comprise the clamping seats (308) that links to each other with ball-joint (306), be arranged at the V-type seat (314) in the clamping seats (308) and be used for the tenon of blade or technology lug are pressed on active pressure head (313) on the V-type seat (314).
4. according to the described a kind of blade processing self adaptation clamping tool of claim 3, it is characterized in that: described active pressure head (313) comprises the screw (312) of dribbling head, and the screw (312) of dribbling head links to each other with first cover plate (307) that is arranged at clamping seats (308) upper end.
5. according to the described a kind of blade processing self adaptation clamping tool of claim 3, it is characterized in that: the lower end of described clamping seats (308) is provided with base plate (310), V-type seat (314) respectively be arranged at base plate (310) on spring and the guider screw (315) that is arranged on clamping seats (308) sidewall link to each other.
6. according to the described a kind of blade processing self adaptation clamping tool of claim 3, it is characterized in that: described clamping seats (308) is provided with second cover plate (309) that prevents that V-type seat (314) from coming off vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725674 CN203092331U (en) | 2012-12-25 | 2012-12-25 | Self-adaption clamping tool for blade machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725674 CN203092331U (en) | 2012-12-25 | 2012-12-25 | Self-adaption clamping tool for blade machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203092331U true CN203092331U (en) | 2013-07-31 |
Family
ID=48843774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725674 Expired - Lifetime CN203092331U (en) | 2012-12-25 | 2012-12-25 | Self-adaption clamping tool for blade machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203092331U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072078A (en) * | 2012-12-25 | 2013-05-01 | 陕西秦川机械发展股份有限公司 | Self-adaptive clamping tool for processing blade and clamping method thereof |
| CN104209600A (en) * | 2014-08-27 | 2014-12-17 | 陕西秦川机械发展股份有限公司 | Compact type annular axial high accuracy positioning and clamping mechanism, and using and manufacturing method thereof |
| CN105058232A (en) * | 2015-07-24 | 2015-11-18 | 无锡诚石轴承有限公司 | Hollow shaft locating device |
| CN105508293A (en) * | 2015-12-28 | 2016-04-20 | 无锡透平叶片有限公司 | Positioning structure for compressor blade forging |
-
2012
- 2012-12-25 CN CN 201220725674 patent/CN203092331U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072078A (en) * | 2012-12-25 | 2013-05-01 | 陕西秦川机械发展股份有限公司 | Self-adaptive clamping tool for processing blade and clamping method thereof |
| CN103072078B (en) * | 2012-12-25 | 2015-11-18 | 秦川机床工具集团股份公司 | A kind of blade processing self adaptation clamping tool and clamping means thereof |
| CN104209600A (en) * | 2014-08-27 | 2014-12-17 | 陕西秦川机械发展股份有限公司 | Compact type annular axial high accuracy positioning and clamping mechanism, and using and manufacturing method thereof |
| CN105058232A (en) * | 2015-07-24 | 2015-11-18 | 无锡诚石轴承有限公司 | Hollow shaft locating device |
| CN105058232B (en) * | 2015-07-24 | 2017-03-22 | 无锡诚石轴承有限公司 | Hollow shaft locating device |
| CN105508293A (en) * | 2015-12-28 | 2016-04-20 | 无锡透平叶片有限公司 | Positioning structure for compressor blade forging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINCHUAN MACHINE TOOL GROUP CO., LTD. Free format text: FORMER NAME: QINCHUAN MACHINERY DEVELOPMENT CO LTD, SHAANXI PROV |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 721009, 22 Tan Tan Road, Shaanxi, Baoji Patentee after: QINCHUAN MACHINE TOOL GROUP CO.,LTD. Address before: 721009, 22 Tan Tan Road, Shaanxi, Baoji Patentee before: Shaanxi Qinchuan Machinery Development Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |