CN101733690B - Gantry propeller integral blade abrasive belt grinding machine - Google Patents
Gantry propeller integral blade abrasive belt grinding machine Download PDFInfo
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- CN101733690B CN101733690B CN2009101915416A CN200910191541A CN101733690B CN 101733690 B CN101733690 B CN 101733690B CN 2009101915416 A CN2009101915416 A CN 2009101915416A CN 200910191541 A CN200910191541 A CN 200910191541A CN 101733690 B CN101733690 B CN 101733690B
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Abstract
The invention discloses a gantry propeller integral blade abrasive belt grinding machine, which comprises a machine body, a grinding head mechanism, a grinding head feed mechanism and a workpiece azimuth adjusting mechanism. The grinding head feed mechanism comprises an axial feed mechanism, a radial feed mechanism with respect to a work piece, and a grinding head deflection driving mechanism. The whole grinding machine has high stability and ensures the grinding precision. By reasonably distributing grinding head feed and adjusting the work piece azimuth and through the combination of four spatial degrees of freedom by a relatively short transmission chain, the grinding head mechanism has high and low degrees of freedom of pitch in a relatively small range, the integral blade can be directly ground, and the blades on the integral blade and other parts are all completely machined. The grinding head mechanism and a work piece clamping mechanism have good rigidity, the working efficiency is improved, and synchronously, the machining precision and the surface quality can be ensured. The grinding thickness in the process of polishing a curved surface is uniform, the quality of a molded surface is ensured, the labor intensity of workers is decreased, and the management cost and the production cost are reduced.
Description
Technical field
The present invention relates to a kind of abrasive belt grinding machine, particularly a kind of gantry propeller integral blade abrasive belt grinding machine.
Background technology
Abrasive belt grinding machine is the grinding machine that utilizes the abrasive band of rapid movement to carry out grinding and polishing as grinding tool.Along with the fast development of grinding machine technology, abrasive belt grinding machine has developed into the finish machining equipment of high efficiency and low-power consumption.Particularly in the processing of large size plate, bar and complex profile, its advantage is particularly evident.Abrasive belt grinding machine is to drive the abrasive band motion by driving wheel, and regulating wheel provides contact pressure and the formation cutting angle of back pressure generation to workpiece in order to the tensioning abrasive band by contact wheel or support plate, finishes the grinding to workpiece.
Because the restriction of grinding machine structure and workpiece mounting structure, the workpiece of complex geometric shapes particularly generally adopts manually the grinding-polishing of polymorphic structure workpiece such as aviation integral blade and steam turbine integral blade the blade monomer is finished.Though artificial grinding can realize complex-curved polishing and polishing, but because people's subjectivity influence, the quality of curved surface is by operating personnel's qualification decision, thereby can't accomplish effective management and control to the workpiece size precision, cause that machining accuracy is relatively poor, the difficult quality guarantee of profile, even in curved surface polishing, make grinding became uneven, homogeneity of product be difficult to guarantee, and working strength of workers is big, producers' work under bad environment.For overcoming the above problems, the grinding machine that the monomer blade occurred, improved the grinding efficiency of blade greatly, but the requirement and the equipment rigidity of the roughing feed amount grinding of existing facilities fail adaptation blade profile are very poor, can't adapt to the functional requirement of large-scale blade rapid stock-removal, and be to carry out grinding at the monomer blade; Though the efficient than artificial grinding increases, the blade of an impeller of grinding needs the repeated multiple times workpiece to install, and operating efficiency is lower, the management cost height; And, in the integral blade for some big machinery use, blade and integral blade body are by casting or are welded into one, for this integral blade, the grinding machine of prior art then can't be processed, and has only by manually carrying out grinding, increase labour intensity, inefficiency increases the production cost of integral blade, and can't guarantee the machining accuracy and the surface quality of integral blade.
Therefore, the abrasive belt grinding machine that needs a kind of propeller blade, can directly carry out grinding to integral blade, the good rigidly of grinding head mechanism and workpiece grip mechanism, can guarantee machining accuracy and surface quality when increasing work efficiency, the grinding thickness is even in the curved surface polishing, guarantees the quality of profile, reduce working strength of workers, reduce management and production cost.
Summary of the invention
In view of this, purpose of the present invention provides a kind of gantry propeller integral blade abrasive belt grinding machine, can directly carry out grinding to propeller integral blade, the good rigidly of grinding head mechanism and workpiece grip mechanism, can guarantee machining accuracy and surface quality when increasing work efficiency, the grinding thickness is even in the curved surface polishing, guarantees the quality of profile, reduce working strength of workers, reduce management and production cost.
Gantry propeller integral blade abrasive belt grinding machine of the present invention comprises lathe bed, grinding head mechanism, grinding wheel feed mechanism and workpiece orientation adjustment mechanism; Described lathe bed is by two supports and the portal frame structure that beam is formed;
Grinding head mechanism comprises bistrique frame and the abrasive band, driving wheel, contact wheel, regulating wheel and the bistrique drive motors that are arranged on the bistrique frame, described abrasive band is walked around driving wheel and contact wheel and is passed through the regulating wheel tensioning, and the power output shaft of described bistrique drive motors cooperates with the driving wheel transmission; The hinged bistrique floating shelf that is provided with of described bistrique frame front end, described contact wheel is arranged on the bistrique floating shelf, between described bistrique frame and the bistrique floating shelf unsteady cylinder is set, described unsteady cylinder block and piston respectively with bistrique frame and the hinged formation of bistrique floating shelf plane endplay device;
Grinding wheel feed mechanism comprises axial feed mechanism, depth-feed mechanism and the bistrique beat driving mechanism with respect to workpiece;
Described depth-feed mechanism comprises radial feed drive motors and radial feed planker, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker and the lathe bed, described radial feed drive motors power output shaft drives the radial feed planker and radially moves back and forth along workpiece;
Described axial feed mechanism comprises axial feed drive motors and axial feed planker, described axial feed planker is arranged on the radial feed planker with mode single-degree-of-freedom sliding back and forth, and described axial feed drive motors power output shaft driving axial feeding planker is along the workpiece axially reciprocating;
Described grinding head mechanism is hinged on the axial feed planker by the linkwork single-degree-of-freedom in the mode of just pitching;
Bistrique beat driving mechanism comprises the beat power set, described bistrique frame so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism be hinged on the rotation end of linkwork; The clutch end of described beat power set is so that the mode of the horizontal beat of grinding head mechanism and bistrique frame drive cooperates; The horizontal deflection angle of described bistrique frame is-5 °-45 °;
The angle-adjusting mechanism that workpiece orientation adjustment mechanism comprises work piece holder, workpiece is rotated around its axis; Angle-adjusting mechanism comprises angle drive motors, bearing and rotor, described rotor is being arranged on the bearing around the mode single-degree-of-freedom that self axis rotates, the power output shaft of described angle drive motors cooperates with the rotor transmission, and described work piece holder is fixedly installed on the rotor.
Further, fixedly install the radial feed slide rail on the described beam, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker and the radial feed slide rail, described radial feed drive motors body is fixedly installed on the beam; Fixedly install the axial feed slide rail on the described radial feed planker, cooperate with mode single-degree-of-freedom sliding back and forth between described axial feed planker and the axial feed slide rail, described axial feed drive motors body is fixedly installed on the radial feed planker.
Further, described radial feed drive motors drives the radial feed planker by lead-screw drive mechanism I and radially moves back and forth along workpiece, the leading screw of described lead-screw drive mechanism I cooperates with the power output shaft transmission of radial feed drive motors, and the nut of lead-screw drive mechanism I is fixedly installed on the radial feed planker; Described axial feed drive motors passes through lead-screw drive mechanism II driving axial feeding planker along the workpiece axially reciprocating, the leading screw of described lead-screw drive mechanism II is fixedlyed connected with the axial feed planker, and the nut of lead-screw drive mechanism II cooperates with the power output shaft transmission of axial feed drive motors.
Further, described beat power set are to be fixedly installed on linkwork to rotate beat drive motors on the end, described bistrique frame by jointed shaft so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism be hinged on the rotation end of linkwork; The power output shaft of described beat drive motors cooperates with the jointed shaft transmission by bevel gearing, and described jointed shaft is in circumferencial direction and bistrique frame secure fit.
Further, described rotor excircle is provided with driven external gear in the circumferencial direction secure fit, and the power output shaft of angle drive motors cooperates with the rotor deceleration transmission by gear drive.
Further, also comprise balance cylinder, balance cylinder cylinder body and piston rod are hinged on respectively on axial feed planker and the bistrique frame.
Further, described radial feed slide rail along continuous straight runs is provided with, and the axial feed slide rail vertically is provided with.
Further, the contact point of described contact wheel and workpiece is along the tangent line of the contact wheel excircle centre of gyration by driving wheel.
Beneficial effect of the present invention: gantry propeller integral blade abrasive belt grinding machine of the present invention, adopt the lathe bed structure of portal frame, increase the stability of whole grinding machine, be beneficial to the raising grinding accuracy; Adjust by reasonable distribution grinding wheel feed and workpiece orientation angles, combination by short four frees degree in driving-chain implementation space, and make grinding head mechanism have the interior height pitching free degree, can directly carry out grinding to integral blade, comprise blade and other position on the integral blade, all can comprehensively be processed, the good rigidly of grinding head mechanism and workpiece grip mechanism, can guarantee machining accuracy and surface quality when increasing work efficiency, the grinding thickness is even in the curved surface polishing, guarantee the quality of profile, reduce working strength of workers, reduce management and production cost.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a structural front view of the present invention;
Fig. 2 is a structure vertical view of the present invention;
Fig. 3 is a structure left side view of the present invention;
Fig. 4 be Fig. 2 along A to view
The specific embodiment
Fig. 1 is a structural front view of the present invention, Fig. 2 is a structure vertical view of the present invention, Fig. 3 is that structure left side view of the present invention is (for conveniently checking, this view omits the bistrique drive motors), Fig. 4 be Fig. 2 along A to view, as shown in the figure: the gantry propeller integral blade abrasive belt grinding machine of present embodiment comprises lathe bed, grinding head mechanism, grinding wheel feed mechanism and workpiece orientation adjustment mechanism; Described lathe bed is by two supports 1 and the portal frame structure that beam 1a forms;
Grinding head mechanism comprises bistrique frame 13 and the abrasive band 14, driving wheel 20, contact wheel 15, regulating wheel 12 and the bistrique drive motors 23 that are arranged on the bistrique frame 13, driving wheel 20 and contact wheel 15 walked around in described abrasive band 14 and by a plurality of regulating wheel 12 tensionings, the power output shaft of described bistrique drive motors 23 cooperates with driving wheel 20 transmissions;
Grinding wheel feed mechanism comprises axial feed mechanism, depth-feed mechanism and the bistrique beat driving mechanism with respect to workpiece;
Described depth-feed mechanism comprises radial feed drive motors 7 and radial feed planker 4, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker 4 and the lathe bed 1, described radial feed drive motors 7 power output shafts drive radial feed planker 4 and radially move back and forth along workpiece 16;
Described axial feed mechanism comprises axial feed drive motors 5 and axial feed planker 11, described axial feed planker 11 is arranged on the radial feed planker 4 with mode single-degree-of-freedom sliding back and forth, and described axial feed drive motors 5 power output shaft driving axial feeding plankers 11 are along workpiece 16 axially reciprocatings;
Described grinding head mechanism is hinged on the axial feed planker by linkwork 26 single-degree-of-freedoms in the mode of just pitching, can realize interior among a small circle height pitching, realizes operations such as bistrique transposition; Linkwork 26 can be any linkwork of realizing rotating and eliminating rotator inertia in the known technology, such as rotating with respect to the axial feed planker by the secondary grinding head mechanism of realizing of gears engaged, and also can be directly hinged; In the present embodiment, the cross section of axial feed planker 11 is a hollow rectangle, is beneficial to weight reduction;
Bistrique beat driving mechanism comprises beat power set 27, and described bistrique frame 13 is so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism is hinged on the rotation end of linkwork 26, and as shown in Figure 3, bistrique frame 13 is hinged on the linkwork 26 by jointed shaft 30; The clutch end of described beat power set 27 is so that the mode of the horizontal beat of grinding head mechanism and bistrique frame 13 drives cooperates; This type of drive can be any type of drive of the prior art, realizes such as moving back and forth by leading screw, also can realize by hydraulic cylinder, also can realize by rotation jointed shaft 30;
The angle-adjusting mechanism that workpiece orientation adjustment mechanism comprises work piece holder 17, workpiece is rotated around its axis; Angle-adjusting mechanism comprises angle drive motors 21, bearing 19 and rotor 18, described rotor 18 is being arranged on the bearing 19 around the mode single-degree-of-freedom that self axis rotates, the power output shaft of described angle drive motors 21 cooperates with rotor 18 transmissions, and described work piece holder 17 is fixedly installed on the rotor 18.
During use, radial feed planker 4 radially moves along workpiece, realizes that contact wheel 15 moves radially along workpiece 16; Axial feed planker 11 axially moves along workpiece 16, and contact wheel 15 moves axially at workpiece, and bistrique deflection is to adapt to the curved-surface structure of integral blade; Workpiece rotates around the center of circle thereby the angle drive motors drives rotor rotation driving, and the workpiece orientation is adjusted, to adapt to the grinding to different blades of same integral blade or same blade; The present invention is by space four frees degree (one of workpiece, three of bistriques) combination, height pitching in conjunction with grinding head mechanism needs grinding skin with the contact integral blade, can realize that the grinding of complex-curved workpiece handles, and working (machining) efficiency height, working strength of workers are little, the surface quality of dimensional accuracy and profile is all secure.
In the present embodiment, fixedly install beam 8 on the described lathe bed 1, fixedly install radial feed slide rail 2 on the beam 8, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker 4 and the radial feed slide rail 2, described radial feed drive motors 7 bodies are fixedly installed on the beam 8; Fixedly install axial feed slide rail 10 on the described radial feed planker 4, cooperate with mode single-degree-of-freedom sliding back and forth between described axial feed planker 11 and the axial feed slide rail 10, described axial feed drive motors 5 bodies are fixedly installed on the radial feed planker 4;
In the present embodiment, described radial feed drive motors 7 drives radial feed planker 4 by lead-screw drive mechanism I and radially moves back and forth along workpiece, the leading screw 3 of described lead-screw drive mechanism I cooperates with the power output shaft transmission of radial feed drive motors 7, and the nut 6 of lead-screw drive mechanism I is fixedly installed on the radial feed planker 4; Described axial feed drive motors 5 passes through lead-screw drive mechanism II driving axial feeding planker 11 along workpiece 16 axially reciprocatings, the leading screw 9 of described lead-screw drive mechanism II is fixedlyed connected with axial feed planker 11, and the nut 25 of lead-screw drive mechanism II cooperates with the power output shaft transmission of axial feed drive motors 5.
In the present embodiment, described beat power set 27 rotate beat drive motors on the end for being fixedly installed on linkwork, described bistrique frame 13 by jointed shaft 30 so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism be hinged on the rotation end of linkwork 26; The power output shaft of described beat drive motors cooperates with jointed shaft 30 transmissions by bevel gearing 29, and described jointed shaft 30 is in circumferencial direction and bistrique frame 13 secure fit.
In the present embodiment, the hinged bistrique floating shelf 13a that is provided with of described bistrique frame 13 front ends, described contact wheel 15 is arranged on the bistrique floating shelf 13a, the cylinder 28 that floats is set between described bistrique frame 13 and the bistrique floating shelf 13a, described unsteady cylinder 28 cylinder bodies and piston respectively with bistrique frame 13 and the hinged formation of bistrique floating shelf 13a plane endplay device (cylinder 28 cylinder bodies that float are articulated in bistrique frame 13, and piston hinge is in bistrique floating shelf 13a); To realize that bistrique guarantees constant grinding pressure in grinding process, be beneficial to the assurance grinding quality.
In the present embodiment, rotor 18 excircles are provided with driven external gear in the circumferencial direction secure fit, and the power output shaft of angle drive motors 21 cooperates with rotor 18 deceleration transmission by gear drive; As shown in the figure, rotor and bearing cooperatively interact by rolling bearing, and transmission is smooth and easy, reduce friction.
In the present embodiment, described radial feed slide rail 2 along continuous straight runs settings, axial feed slide rail 10 vertically is provided with, and the connection and reasonable arrangement compactness is easily manufactured simple.
In the present embodiment, the decelerator that the power output shaft of described radial feed drive motors and axial feed drive motors passes through separately respectively cooperates with the leading screw of lead-screw drive mechanism I and the nut transmission of lead-screw drive mechanism II, be beneficial to adjusting, stable drive guarantees the transmission effect; The power output shaft of angle drive motors 21 drives rotor 18 by change gear box 22, is the band transmission between the power output shaft of angle drive motors 21 and the change gear box 22.
In the present embodiment, the horizontal deflection angle of described bistrique frame 13 is-5 °-45 °; Can be adapted to the angle of inclination of integral blade blade, guarantee the grinding scope.
In the present embodiment, also comprise balance cylinder 24, balance cylinder 24 cylinder bodies and piston rod are hinged on respectively that (balance cylinder 24 cylinder bodies are articulated in axial feed planker 11 on axial feed planker 11 and the bistrique frame 13, piston rod is articulated in bistrique frame 13), guarantee the balance of grinding head mechanism when the pitching of manually-operated height, further guarantee grinding quality.
In the present embodiment, the contact point of described contact wheel 15 and workpiece is eliminated leverage along the tangent line of the contact wheel excircle centre of gyration by driving wheel 20, is beneficial to the stability that improves grinding process, thereby guarantees grinding quality.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. a gantry propeller integral blade abrasive belt grinding machine is characterized in that: comprise lathe bed, grinding head mechanism, grinding wheel feed mechanism and workpiece orientation adjustment mechanism; Described lathe bed is by two supports and the portal frame structure that beam is formed;
Grinding head mechanism comprises bistrique frame and the abrasive band, driving wheel, contact wheel, regulating wheel and the bistrique drive motors that are arranged on the bistrique frame, described abrasive band is walked around driving wheel and contact wheel and is passed through the regulating wheel tensioning, and the power output shaft of described bistrique drive motors cooperates with the driving wheel transmission; The hinged bistrique floating shelf that is provided with of described bistrique frame front end, described contact wheel is arranged on the bistrique floating shelf, between described bistrique frame and the bistrique floating shelf unsteady cylinder is set, described unsteady cylinder block and piston respectively with bistrique frame and the hinged formation of bistrique floating shelf plane endplay device;
Grinding wheel feed mechanism comprises axial feed mechanism, depth-feed mechanism and the bistrique beat driving mechanism with respect to workpiece;
Described depth-feed mechanism comprises radial feed drive motors and radial feed planker, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker and the lathe bed, described radial feed drive motors power output shaft drives the radial feed planker and radially moves back and forth along workpiece;
Described axial feed mechanism comprises axial feed drive motors and axial feed planker, described axial feed planker is arranged on the radial feed planker with mode single-degree-of-freedom sliding back and forth, and described axial feed drive motors power output shaft driving axial feeding planker is along the workpiece axially reciprocating;
Described grinding head mechanism is hinged on the axial feed planker by the linkwork single-degree-of-freedom in the mode of just pitching;
Bistrique beat driving mechanism comprises the beat power set, described bistrique frame so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism be hinged on the rotation end of linkwork; The clutch end of described beat power set is so that the mode of the horizontal beat of grinding head mechanism and bistrique frame drive cooperates; The horizontal deflection angle of described bistrique frame is-5 °-45 °;
The angle-adjusting mechanism that workpiece orientation adjustment mechanism comprises work piece holder, workpiece is rotated around its axis; Angle-adjusting mechanism comprises angle drive motors, bearing and rotor, described rotor is being arranged on the bearing around the mode single-degree-of-freedom that self axis rotates, the power output shaft of described angle drive motors cooperates with the rotor transmission, and described work piece holder is fixedly installed on the rotor.
2. gantry propeller integral blade abrasive belt grinding machine according to claim 1, it is characterized in that: fixedly install the radial feed slide rail on the described beam, cooperate with mode single-degree-of-freedom sliding back and forth between described radial feed planker and the radial feed slide rail, described radial feed drive motors body is fixedly installed on the beam; Fixedly install the axial feed slide rail on the described radial feed planker, cooperate with mode single-degree-of-freedom sliding back and forth between described axial feed planker and the axial feed slide rail, described axial feed drive motors body is fixedly installed on the radial feed planker.
3. gantry propeller integral blade abrasive belt grinding machine according to claim 2, it is characterized in that: described radial feed drive motors drives the radial feed planker by lead-screw drive mechanism I and radially moves back and forth along workpiece, the leading screw of described lead-screw drive mechanism I cooperates with the power output shaft transmission of radial feed drive motors, and the nut of lead-screw drive mechanism I is fixedly installed on the radial feed planker; Described axial feed drive motors passes through lead-screw drive mechanism II driving axial feeding planker along the workpiece axially reciprocating, the leading screw of described lead-screw drive mechanism II is fixedlyed connected with the axial feed planker, and the nut of lead-screw drive mechanism II cooperates with the power output shaft transmission of axial feed drive motors.
4. gantry propeller integral blade abrasive belt grinding machine according to claim 3, it is characterized in that: described beat power set are to be fixedly installed on linkwork to rotate beat drive motors on the end, described bistrique frame by jointed shaft so that the mode single-degree-of-freedom of the horizontal beat of grinding head mechanism be hinged on the rotation end of linkwork; The power output shaft of described beat drive motors cooperates with the jointed shaft transmission by bevel gearing, and described jointed shaft is in circumferencial direction and bistrique frame secure fit.
5. gantry propeller integral blade abrasive belt grinding machine according to claim 4, it is characterized in that: described rotor excircle is provided with driven external gear in the circumferencial direction secure fit, and the power output shaft of angle drive motors cooperates with the rotor deceleration transmission by gear drive.
6. gantry propeller integral blade abrasive belt grinding machine according to claim 5 is characterized in that: also comprise balance cylinder, balance cylinder cylinder body and piston rod are hinged on respectively on axial feed planker and the bistrique frame.
7. gantry propeller integral blade abrasive belt grinding machine according to claim 6 is characterized in that: described radial feed slide rail along continuous straight runs is provided with, and the axial feed slide rail vertically is provided with.
8. gantry propeller integral blade abrasive belt grinding machine according to claim 7 is characterized in that: the contact point of described contact wheel and workpiece is along the tangent line of the contact wheel excircle centre of gyration by driving wheel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101915416A CN101733690B (en) | 2009-11-20 | 2009-11-20 | Gantry propeller integral blade abrasive belt grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101915416A CN101733690B (en) | 2009-11-20 | 2009-11-20 | Gantry propeller integral blade abrasive belt grinding machine |
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| CN101733690A CN101733690A (en) | 2010-06-16 |
| CN101733690B true CN101733690B (en) | 2011-11-02 |
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| CN113787380A (en) * | 2021-06-30 | 2021-12-14 | 中国航发动力股份有限公司 | Numerical control grinding method for irregular profile on blade |
| CN114029816B (en) * | 2021-11-17 | 2022-08-30 | 深圳焦点伟业科技有限公司 | High-speed Fresnel lens engraving machine applying precise gear transmission technology |
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2009
- 2009-11-20 CN CN2009101915416A patent/CN101733690B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101733690A (en) | 2010-06-16 |
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