CN201645206U - Numerically controlled machining precise positioning fixture for blades - Google Patents
Numerically controlled machining precise positioning fixture for blades Download PDFInfo
- Publication number
- CN201645206U CN201645206U CN201020020523XU CN201020020523U CN201645206U CN 201645206 U CN201645206 U CN 201645206U CN 201020020523X U CN201020020523X U CN 201020020523XU CN 201020020523 U CN201020020523 U CN 201020020523U CN 201645206 U CN201645206 U CN 201645206U
- Authority
- CN
- China
- Prior art keywords
- blade
- tenon root
- core axle
- tenon
- eccentric pin
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a numerically controlled machining precise positioning fixture for blades, which comprises a tenon roof positioning block and a positioning mandrel. The tenon roof positioning block is mounted on a rotary worktable via a base and provided with a blade tenon roof mounting groove and a first eccentric pin used for clamping, the first eccentric pin is mounted at the bottom of the blade tenon mounting groove, the axial outer surface of the first eccentric pin contacts with a blade tenon roof, the positioning mandrel is connected with a tailstock via a connecting shaft sleeve, the tailstock and the rotary worktable are mounted on a machine tool table, and the positioning mandrel is connected with a blade tip processing table via a positioning pin. By aid of the numerically controlled machining precise positioning fixture for blades, blades can be stable in machining and not easy to deform, machining precision and quality of blades for aircraft engines can be increased, and the numerically controlled machining efficiency is increased. Further, the positioning fixture is simple in structure, convenient in installation and high in positioning precision which can not be affected by frequent assembly and disassembly.
Description
Technical field
The utility model relates to the blade of aviation engine processing technique field, especially relates to a kind of anchor clamps that are used for precision, the processing thin-walled blade of ultraprecise numerical control cutting.
Background technology
At present, main dual-use engine all is a fanjet, and its compressor and fan blade difficulty of processing are bigger, especially aero-engine is pursued high thrust-weight ratio, blade design accuracy height, and require in light weightly, take with light materials such as thin-wall construction and titanium alloys more.The blade of aviation engine process characteristic is: blade is thin-wall construction, have complex free curved surface, for improving aeroperformance, the spoon of blade bending is violent, and that structure has is curved, turn round, plunder characteristics such as shape, precision is high, and the clamping of these characteristics before to blade processing proposed quite high requirement.Blade processing anchor clamps type of the prior art has a lot, universal fixturing is arranged usually, can adjust anchor clamps, built-up jig etc., generally all adopt an end to fix, the top formula structure of one end, this structure is easy to cause the clamping distortion of blade when processing thin-walled structure blade, and its locate mode instability, influenced processing of leaves precision and total quality.
Summary of the invention
Clamp easy deformation in order to overcome the prior art blade, the deficiency that the location is unstable, the utility model provides a kind of blade digital control processing precise positioning fixture, by adopting the structure that fixes to clamp of two ends pretension, the competent the problems of the prior art that effectively solve.
The technical scheme that its technical problem that solves the utility model adopts is: include clamp body, described clamp body is made of the tenon root locating piece of clamping blade tenon radicle and the positioning core axle at clamping blade and blade tip, tenon root locating piece is installed on the rotary table by base, first eccentric pin shaft that tenon root locating piece is provided with blade tenon root mounting groove and is used to clamp, first eccentric pin shaft is installed in blade tenon root mounting groove bottom, and the axial external surface of first eccentric pin shaft contacts with the blade tenon root; Positioning core axle links to each other with tailstock by connecting bushing, and tailstock and rotary table are installed on the platen, and positioning core axle links to each other by the most advanced and sophisticated process area of alignment pin and blade and blade.
Described base through screws and rotary table are fixedly linked, and tenon root locating piece is fixedly linked by bearing pin and screw and base.
Be provided with alignment pin and the location inclined-plane corresponding in the blade tenon root mounting groove on the described tenon root locating piece with the blade tenon root, the corresponding clamping pin that also is provided with alignment pin, alignment pin and clamping pin are installed in blade tenon root mounting groove two ends respectively, the effect of playing the location and clamping.
Described positioning core axle is provided with and is used for the slotted eye that links to each other with the most advanced and sophisticated process area of blade and blade, and the slotted eye root outside on the positioning core axle is corresponding is provided with groove, can play the slight elasticity distortion, makes things convenient for the loading and unloading of blade and blade tip process area.
Described positioning core axle links to each other with connecting bushing by second eccentric pin shaft, and positioning core axle stretches into the centre bore of connecting bushing, and second eccentric pin shaft is installed in the hole of positioning core axle and connecting bushing correspondence.
Described first eccentric pin shaft and second eccentric pin shaft are the cylinder cam pin.
The beneficial effects of the utility model are: described blade digital control processing precise positioning fixture, in the blade clamping process, the location was carried out in blade tenon root position, blade tip end process area links to each other with positioning core axle, setting by eccentric pin shaft, utilize the self-locking of eccentric pin shaft to realize clamping, even the pulling force of a pretension is arranged in the time of blade processing, the blade that can effectively reduce like this in the processing produces machining deformation under the effect of cutting force, blade can be born because the shock and vibration that Tool in Cutting power produces make processing of leaves become stable and not yielding in process.These anchor clamps not only can improve the machining accuracy and the quality of blade of aviation engine, and can improve efficiency of numerical control (NC) machining, with the location of crossing that the keeper of screw and tenon root position is realized blade, improve positioning accuracy, reduce damping vibration.Utilize the keeper and the locating surface at tenon root place to realize the symmetry location, make the symmetry of clamping good.This clamp structure is simple, and is easy for installation, and the positioning accuracy height can repeatedly be installed and removed and do not influence positioning accuracy.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A place structure cross-sectional schematic of Fig. 1 of the present utility model;
Fig. 3 is that the C of Fig. 1 of the present utility model is to structural representation.
Among the figure, 1-tailstock, 2-axle sleeve, 3-second eccentric pin shaft, 4-positioning core axle, 5-alignment pin, 6-clamps pin, 7-first eccentric pin shaft, 8-alignment pin, 9-tenon root locating piece, 10-base, 11-rotary table, the 12-blade, 13-blade tenon root, 14-blade tip end process area, 15-slotted eye, 16-groove.
The specific embodiment
As shown in Figure 1, 2, 3, described blade digital control processing precise positioning fixture, include clamp body, described clamp body is made of the tenon root locating piece 9 of clamping blade tenon root 13 ends and the positioning core axle 4 at clamping blade and blade tip, tenon root locating piece 9 is installed on the rotary table 11 by base 10, first eccentric pin shaft 7 that tenon root locating piece 9 is provided with blade tenon root mounting groove and is used to clamp, first eccentric pin shaft 7 is installed in blade tenon root mounting groove 15 bottoms on the tenon root locating piece 9, and the axial external surface of first eccentric pin shaft 7 contacts with blade tenon root 13; Positioning core axle 4 links to each other with tailstock 1 by connecting bushing 2, and tailstock 1 is installed on the platen, and positioning core axle 4 links to each other with the most advanced and sophisticated process area 14 of blade and blade by the alignment pin 5 which is provided with.
Described base 10 is fixedly linked by sunk screw and rotary table 11, and tenon root locating piece 9 links to each other with base 10 with screw by bearing pin.Be provided with alignment pin 8 and the location inclined-plane corresponding in the blade tenon root mounting groove on the described tenon root locating piece 9 with the blade tenon root, clamp pin 6 with alignment pin 8 corresponding also being provided with, alignment pin 8 and clamping pin 6 are installed in the blade tenon root mounting groove two ends of blade tenon root correspondence, the effect of playing the location and clamping respectively.Described positioning core axle 4 is provided with and is used for the slotted eye 15 that links to each other with the most advanced and sophisticated process area 14 of blade and blade, and corresponding being provided with in the slotted eye 15 roots outside on the positioning core axle 4 is used to the groove 16 that makes things convenient for the most advanced and sophisticated process area 14 of blade and blade to load and unload.Described positioning core axle 4 links to each other with connecting bushing 2 by second eccentric pin shaft 3, and positioning core axle 4 stretches into the centre bore of connecting bushing 2, and second eccentric pin shaft 3 is installed in the hole of positioning core axle 4 and connecting bushing 2 correspondences.Described first eccentric pin shaft 7 and second eccentric pin shaft 3 are the cylinder cam pin
Described blade digital control processing precise positioning fixture, when it used, rotary table 11 and tailstock 10 were installed on the platen, by above-mentioned connection blade 12 are installed on the anchor clamps, realize the location by the positioner on it, and realize pre-the clamping by first eccentric pin shaft, 7 second cam pins 3.
Claims (6)
1. blade digital control processing precise positioning fixture, comprise clamp body, it is characterized in that: described clamp body is made of the tenon root locating piece of clamping blade tenon radicle and the positioning core axle at clamping blade and blade tip, tenon root locating piece is installed on the rotary table by base, first eccentric pin shaft that tenon root locating piece is provided with blade tenon root mounting groove and is used to clamp, first eccentric pin shaft is installed in blade tenon root mounting groove bottom, and the axial external surface of first eccentric pin shaft contacts with the blade tenon root; Positioning core axle links to each other with tailstock by connecting bushing, and tailstock and rotary table are installed on the platen, and positioning core axle links to each other by the most advanced and sophisticated process area of alignment pin and blade and blade.
2. blade digital control processing precise positioning fixture according to claim 1, it is characterized in that: described base through screws and rotary table are fixedly linked, and tenon root locating piece is fixedly linked by bearing pin and screw and base.
3. blade digital control processing precise positioning fixture according to claim 1, it is characterized in that: be provided with alignment pin and the location inclined-plane corresponding in the described blade tenon root mounting groove with the blade tenon root, the corresponding clamping pin that also is provided with alignment pin, alignment pin and clamping pin are installed in blade tenon root mounting groove two ends respectively.
4. blade digital control processing precise positioning fixture according to claim 1 is characterized in that: described positioning core axle is provided with and is used for the slotted eye that links to each other with the most advanced and sophisticated process area of blade and blade, the slotted eye root outside correspondence on the positioning core axle be provided with groove.
5. blade digital control processing precise positioning fixture according to claim 1, it is characterized in that: described positioning core axle links to each other with connecting bushing by second eccentric pin shaft, positioning core axle stretches into the centre bore of connecting bushing, and second eccentric pin shaft is installed in the hole of positioning core axle and connecting bushing correspondence.
6. blade digital control processing precise positioning fixture according to claim 5 is characterized in that: described first eccentric pin shaft and second eccentric pin shaft are the cylinder cam pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020020523XU CN201645206U (en) | 2010-01-21 | 2010-01-21 | Numerically controlled machining precise positioning fixture for blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020020523XU CN201645206U (en) | 2010-01-21 | 2010-01-21 | Numerically controlled machining precise positioning fixture for blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201645206U true CN201645206U (en) | 2010-11-24 |
Family
ID=43110413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020020523XU Expired - Fee Related CN201645206U (en) | 2010-01-21 | 2010-01-21 | Numerically controlled machining precise positioning fixture for blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201645206U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103009155A (en) * | 2012-12-28 | 2013-04-03 | 北京航空航天大学 | Self-adaptive eccentric fixture |
| CN103028962A (en) * | 2012-11-30 | 2013-04-10 | 无锡透平叶片有限公司 | Method for improving positioning accuracy of blade and blade root of tenon tooth |
| CN103223606A (en) * | 2013-05-16 | 2013-07-31 | 西北工业大学 | Universal clamp for numerical-control machining and precise positioning of blade |
| CN104440161A (en) * | 2014-11-13 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method and clamp for eliminating deformation of blade caused by machining stress |
| CN104985969A (en) * | 2015-08-03 | 2015-10-21 | 温岭市创嘉信息科技有限公司 | Cylindrical workpiece engraving machine automatic clamp device |
| CN105817918A (en) * | 2016-04-11 | 2016-08-03 | 西北工业大学明德学院 | Special positioning fixture for blade numerical control precision machining |
| CN106112582A (en) * | 2016-06-28 | 2016-11-16 | 中国南方航空工业(集团)有限公司 | The clamping device of blade |
| CN106392695A (en) * | 2016-09-14 | 2017-02-15 | 何世华 | Fixing method for machining engine blade |
| CN109732258A (en) * | 2019-01-25 | 2019-05-10 | 惠阳航空螺旋桨有限责任公司 | A kind of tool being welded on eccentric key seat on blade |
| CN112247618A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN112247630A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Low-melting-point alloy casting fixture and method for thin-wall blade tip machining |
| CN116587024A (en) * | 2023-07-17 | 2023-08-15 | 沈阳强航时代精密科技有限公司 | Self-adaptive clamp for production of aero-engine double-positioning reference table blade |
-
2010
- 2010-01-21 CN CN201020020523XU patent/CN201645206U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102179552B (en) * | 2011-04-07 | 2013-05-15 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN103028962A (en) * | 2012-11-30 | 2013-04-10 | 无锡透平叶片有限公司 | Method for improving positioning accuracy of blade and blade root of tenon tooth |
| CN103009155A (en) * | 2012-12-28 | 2013-04-03 | 北京航空航天大学 | Self-adaptive eccentric fixture |
| CN103009155B (en) * | 2012-12-28 | 2015-01-07 | 北京航空航天大学 | Self-adaptive eccentric fixture |
| CN103223606A (en) * | 2013-05-16 | 2013-07-31 | 西北工业大学 | Universal clamp for numerical-control machining and precise positioning of blade |
| CN104440161A (en) * | 2014-11-13 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method and clamp for eliminating deformation of blade caused by machining stress |
| CN104985969B (en) * | 2015-08-03 | 2017-01-18 | 陈华 | Cylindrical workpiece engraving machine automatic clamp device |
| CN104985969A (en) * | 2015-08-03 | 2015-10-21 | 温岭市创嘉信息科技有限公司 | Cylindrical workpiece engraving machine automatic clamp device |
| CN105817918A (en) * | 2016-04-11 | 2016-08-03 | 西北工业大学明德学院 | Special positioning fixture for blade numerical control precision machining |
| CN105817918B (en) * | 2016-04-11 | 2017-11-07 | 西北工业大学明德学院 | A kind of precision machined special positioning fixture of blade digital control |
| CN106112582A (en) * | 2016-06-28 | 2016-11-16 | 中国南方航空工业(集团)有限公司 | The clamping device of blade |
| CN106112582B (en) * | 2016-06-28 | 2018-09-25 | 中国南方航空工业(集团)有限公司 | The clamping device of blade |
| CN106392695A (en) * | 2016-09-14 | 2017-02-15 | 何世华 | Fixing method for machining engine blade |
| CN109732258A (en) * | 2019-01-25 | 2019-05-10 | 惠阳航空螺旋桨有限责任公司 | A kind of tool being welded on eccentric key seat on blade |
| CN109732258B (en) * | 2019-01-25 | 2024-05-24 | 惠阳航空螺旋桨有限责任公司 | Tool for welding eccentric pin seat on blade |
| CN112247618A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN112247630A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Low-melting-point alloy casting fixture and method for thin-wall blade tip machining |
| CN112247618B (en) * | 2020-09-30 | 2022-04-12 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN116587024A (en) * | 2023-07-17 | 2023-08-15 | 沈阳强航时代精密科技有限公司 | Self-adaptive clamp for production of aero-engine double-positioning reference table blade |
| CN116587024B (en) * | 2023-07-17 | 2023-09-15 | 沈阳强航时代精密科技有限公司 | Self-adaptive clamp for production of aero-engine double-positioning reference table blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201645206U (en) | Numerically controlled machining precise positioning fixture for blades | |
| CN101758397B (en) | Positioning and drilling fixture for crank oil hole | |
| CN102029537B (en) | Precise positioning fixture for numerical control machining of thin-wall blade | |
| CN201295846Y (en) | Positioning and drilling clamp for crank oil hole | |
| CN204449948U (en) | A kind of expanded hole fixture for automobile connecting bar processing | |
| CN201313260Y (en) | Fixture used for drilling holes on small end of connecting rod | |
| CN103223606A (en) | Universal clamp for numerical-control machining and precise positioning of blade | |
| CN102615534B (en) | Hydraulic fixture used for machining precision forging blade tenon root | |
| CN203509608U (en) | Multifunctional clamp | |
| CN205271486U (en) | Whole bladed disk's of processing aeroengine anchor clamps | |
| CN204248507U (en) | The fixture of processing automobile gearbox balancing weight | |
| CN107813162B (en) | It is a kind of for processing the tooling of the multi-joint stator blade of large-scale combustion engine | |
| CN102632410A (en) | Resin pressing curved surface numerical control machining clamp for performing precision forging on blade tenon root | |
| CN104858682A (en) | Double-arm self-adapting fixture used for controlling machining deformation of blade | |
| CN201357253Y (en) | Flywheel housing drill jig | |
| CN113182906A (en) | Aeroengine turbine blade machining clamp and clamping method thereof | |
| CN202212779U (en) | Mechanical centering clamping-type blade clamp | |
| CN201871973U (en) | Precise positioning clamp for digital control processing of thin-walled blade | |
| CN201685123U (en) | Aluminum piston rough turned outer circle clamp of internal combustion engine | |
| CN106334962B (en) | A kind of turnery processing adjustable positioning device | |
| CN202507098U (en) | Fixture for resin pressure curved surface numerical control machining of precisely-forged blade tenon root | |
| CN104209860A (en) | Special flat floating fixture for precision honing machine | |
| CN203579247U (en) | Automobile steering knuckle shell clamp | |
| CN208906402U (en) | Workpiece positions alignment mechanism | |
| CN213531763U (en) | Screw rotor drive end positioning fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140121 |