Utility model content
For overcoming existing spinning apparatus core mould to workpiece bad adaptability, and the shortcoming such as spinning part surfaces externally and internally distortion is inhomogeneous, it is a kind of without core that the purpose of this utility model is to provide, and can improve again the spinning apparatus of the inside and outside surface accuracy of spinning part simultaneously.
The utility model object is achieved through the following technical solutions:
The device of brute force to wheel mould pressing, comprises frame, outward turning wheel apparatus and internal rotary wheel device; It is characterized in that: described internal rotary wheel device is mainly by internal rotary wheel, interior claw, chuck body, wedge, flange support tube, form wheel tail top, bearing block and screw mandrel; Flange support tube one end chuck body connects, and the other end, with fixing to wheel tail top, is connected with bearing block wheel tail top, and bearing block center is provided with rear bearing, and the rear end of leading screw is fixed on rear bearing, and is connected with the first servomotor; Screw mandrel is through pushing up and flange support tube wheel tail, and the front end of leading screw is connected with wedge by feed screw nut; Internal rotary wheel is arranged on interior claw by bearing, and interior claw is connected with wedge; Wedge has three, is 120 ° and is evenly distributed on T font guide-track groove, and this guide-track groove becomes an oblique angle with wedge axis; Interior claw is also provided with the T font slide block on the inclined-plane of same angle;
Described outward turning wheel apparatus mainly by outer spinning roller, slide block, radially finely tune screw rod, outer claw, turbine, worm screw, Archimedian screw dish and outer spinning roller frame and form; Archimedian screw dish is fixedly connected with turbine, is arranged on the middle part of outer spinning roller frame, and outer spinning roller frame bottom is provided with worm screw, and the two ends of worm screw are arranged on outer spinning roller frame by bearing, and one end of worm screw connects the second servomotor; Archimedian screw dish 3 the outer claws that are connected with a joggle, 3 outer claws are separately positioned in the individual guide rail of outer spinning roller frame; 3 outer spinning rollers are connected on slide block by bearing, and slide block is connected with the guide rail of outer claw; 3 outward turning wheels are positioned at the periphery of three internal rotary wheels.
Further, described outer claw 2 is connected with slide block by radially finely tuning screw rod.
Described frame is mainly made up of framework, pressing plate and bonnet; Pressing plate and bonnet are fixed on framework.
Described outward turning wheel apparatus is rotating disc type outward turning wheel apparatus.
Described Archimedian screw dish is arranged on the middle part of outer spinning roller frame by the centre bore of turbine.
The inside and outside spinning roller device of the utility model regulates separately respectively the radial motion of three internal rotary wheels and three outer spinning rollers, and each motor synchronizing that can realize three internal rotary wheels and three outer spinning rollers is advanced and retreat, three internal rotary wheels and three outer spinning rollers form respectively three pairs of spinning rollers, realize workpiece surfaces externally and internally is applied to needed drafts.Three pairs of spinning roller space hexagonal angles are evenly distributed on the circumferencial direction of workpiece, effectively balance radial spinning power.
With respect to prior art, the utlity model has following advantage: the utility model is owing to adopting Wedge type internal rotary wheel device and rotating disc type outward turning wheel apparatus to match, from inside and outside surface, workpiece is applied to spinning force respectively, make workpiece surfaces externally and internally deformation comparison even, reduce the residual stress of workpiece, improved the dimensional accuracy of spinning part.By adjusting inside and outside spinning roller radial motion, the cylindrical member that can process different-diameter in certain limit; By adjusting the distance between inside and outside spinning roller, can obtain the cylindrical member of different wall.Namely, only need to adjust the radial position of inside and outside spinning roller, need not process any spinning mold, can mould pressing different-diameter and the cylindrical part of different wall.
The specific embodiment
For understanding better the utility model, describe structure of the present utility model in detail below in conjunction with accompanying drawing, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, 2, the device of a kind of brute force to wheel mould pressing, comprises frame 20, outward turning wheel apparatus and internal rotary wheel device; Its mid frame 20 is mainly made up of framework, pressing plate 21 and bonnet; Pressing plate 21 and bonnet are fixed on framework.
Internal rotary wheel device is mainly by internal rotary wheel 6, interior claw 7, bearing 8, chuck body 13, wedge 14, flange support tube 15, form wheel tail top 16, bearing block 17 and screw mandrel 18; Flange support tube 15 one end chuck bodies 13 connect, and the other end, with fixing to wheel tail top 16, is connected with bearing block 11 wheel tail top 16, and bearing block 11 centers are provided with rear bearing 19, and the rear end of leading screw 18 is fixed on rear bearing 19, and is connected with the first servomotor; Screw mandrel 18 passes wheel tail top 16 and flange support tube 15, and the front end of leading screw 18 is connected with wedge 14 by feed screw nut 5; Internal rotary wheel 6 is arranged on interior claw 7 by bearing 8, and interior claw 7 is connected with wedge 14; As shown in Figure 3,4, wedge 14 has three to be 120 ° of equally distributed T font guide-track grooves, and this guide-track groove becomes an oblique angle with wedge 14 axis; As shown in Figure 5, corresponding interior claw 7 also has the T font slide block on the inclined-plane of same angle, and the axially-movable of wedge 14 just can drive interior claw 7 radially to move like this, thereby realizes the synchronous advance and retreat of 3 internal rotary wheels 6.The rear end of leading screw 18 is connected with power set the first servomotor, can drive leading screw 18 to rotate by servomotor like this, and leading screw 18 drives wedge 14 to move vertically simultaneously; Wheel tail top 16 and outer spinning roller frame 4 are all arranged in frame 20;
Rotating disc type outward turning wheel apparatus mainly by outer spinning roller 9, bearing 8, slide block 10, radially finely tune screw rod 11, outer claw 12, turbine 3, worm screw 2, Archimedian screw dish 3 and outer spinning roller frame 4 and form; Archimedian screw dish 3 is fixedly connected with turbine 2, and be arranged on the middle part of outer spinning roller frame 1 by their centre bore, outer spinning roller frame 1 bottom is provided with worm screw 2, and the two ends of worm screw 2 are arranged on outer spinning roller frame 4 by bearing, and one end of worm screw 2 connects the second servomotor; Archimedian screw dish 3 12,3 the outer claws 12 of 3 outer claws that are connected with a joggle are separately positioned in 3 guide rails of outer spinning roller frame 4; 3 outer spinning rollers 9 are connected on slide block 10 by bearing 8, and slide block 10 is connected with the guide rail of outer claw 12; 3 outer spinning rollers 9 are positioned at the periphery of three internal rotary wheels 6; Outer claw 12 is connected with slide block 10 by radially finely tuning screw rod 11; The second servomotor drives the radial feed motion of outer claw 12, slide block 10, outer spinning roller 9 by the rotation of worm screw 2, turbine 3 and Archimedian screw dish 4; Slide block 10 and outer spinning roller 9 can carry out by radially finely tuning screw rod 11 fine setting of radial position, realize the synchronism of radial feed motion of three outer spinning rollers 9 and the accurate control of the amount of feeding.By pressing plate 21, slide block 10 and outer claw 9 are applied to axial constraint simultaneously, guarantee slide block 10 and not getaway of outer claw 12.
Three outer spinning rollers of the utility model and three pairs of spinning rollers of three internal rotary wheels composition, and be mutually hexagonal angle and be uniformly distributed around axis of workpiece.
When application, the utility model device is arranged on the horizontal supporting plate of spinning lathe, clamping workpiece is rotated on machine tool chief axis and with main shaft, the dead in line of main-shaft axis and screw mandrel 18, start the first servomotor of controlling internal rotary wheel 6 radial feeds, drive wedge 14 to move vertically by leading screw 18, in wedge 14 drives, claw 7 and internal rotary wheel 6 are radially fed to the drafts setting; Then start the second servomotor of controlling outer spinning roller 9 radial feeds, drive Archimedian screw dish 4 to rotate by worm screw 2 and turbine 3, Archimedian screw dish 4 drives 3 outer claws 12, slide block 10 and outer spinning rollers 9 radially to move to the drafts setting by engaging tooth; Then drive the utility model device to be fed to vertically the position setting by the power drive workbench of lathe, control again the servomotor reverse rotation of inside and outside spinning roller radial feed, internal rotary wheel moves inward, outer spinning roller outwards moves, three pairs of spinning rollers depart from workpiece and get back to vertically original position, complete the rotary pressing processing of a passage.Readjust again the drafts of inside and outside spinning roller, carry out the spinning of lower a time.Through multi-pass spinning complete cylindrical part to wheel rotary pressing processing.
The utility model is made up of frame, outward turning wheel apparatus and internal rotary wheel device.Outward turning wheel apparatus comprises outer spinning roller, slide block, radiai adjustment screw rod, outer claw, Archimedian screw dish, turbine, worm screw, outward turning wheel frame, pressing plate and bonnet.Drive slide block, outer claw radially to move by scroll bar, worm gear, Archimedian screw disc spins, thereby regulate the radial position of outer spinning roller, meanwhile, the radiai adjustment screw rod externally radial position of spinning roller is finely tuned.Archimedian screw dish is contained on outer spinning roller frame by inner hole sleeve, and slide block is limited in the guide rail on outer spinning roller frame and is radially moved by the pressing plate on outer spinning roller frame, and outer spinning roller frame is fixed in frame;
Internal rotary wheel device comprises internal rotary wheel, interior claw, disk body, wedge, screw mandrel, flange support tube and to wheel tailstock.In driving by screw mandrel, wedge, claw radially moves, thereby regulates the radial position of internal rotary wheel, and internal rotary wheel device is arranged on wheel tailstock by flange support tube, and wheel tailstock is fixed in frame.
When mould pressing, first by reduction requirement, gap between inside and outside spinning roller is reduced to certain designated value that is less than cylindrical member blank wall thickness, and gap is aimed to the centre position of blank wall thickness, when blank is in the time that the rotation of self axis, spinning apparatus move along blank axis direction, just can realize cylindrical member blank to wheel mould pressing.
Compared with conventional power spinning of tube workpiece forming technology, the utility model does not only need to process any core, can also realize the uniformity of outside distortion in cylindrical member, is conducive to improve the crudy of workpiece.