CN103009155A - Self-adaptive eccentric fixture - Google Patents
Self-adaptive eccentric fixture Download PDFInfo
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- CN103009155A CN103009155A CN2012105866425A CN201210586642A CN103009155A CN 103009155 A CN103009155 A CN 103009155A CN 2012105866425 A CN2012105866425 A CN 2012105866425A CN 201210586642 A CN201210586642 A CN 201210586642A CN 103009155 A CN103009155 A CN 103009155A
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Abstract
The invention relates to a self-adaptive eccentric fixture which comprises an eccentric fixture matrix, two accompanying fixture blocks, two sets of fixture block fixing devices and a flexible connection device, wherein the two accompanying fixture blocks are of the same structures and are arranged in the opposite directions; the two sets of fixture block fixing devices are connected to the fixture matrix; the flexible connection device is used for connecting the fixture matrix to a machine tool; the pair of accompanying fixture blocks is arranged on a positioning surface of the eccentric fixture matrix; the centers of the accompanying fixture blocks are coaxial with a rotating shaft of the integral eccentric fixture matrix; the flexible connection device is arranged on a positioning shaft at the left side of the eccentric fixture matrix; and the fixture block fixing devices are arranged between the flexible connection device and the eccentric fixture matrix. A blade is arranged on the two accompanying fixture blocks by a double-end positioning reference. One side of the integral fixture system is connected with a rotating working table of the machine tool by a flexible adjustable flange assembly and the other side of the integral fixture system is directly aligned and pressed by a hydraulic centre. The fixture is mainly used for processing weakly ridge blades.
Description
Technical field
The present invention relates to a kind of self adaptation eccentric fixture, it is a kind ofly to utilize eccentric stiffener to do supplemental support to make clamping machine tool power not act on weak rigid blade, and utilizes the sphere adaptive mechanism to be implemented in to adapt to this variation when blade locating surface position changes always and guarantee that the anchor clamps of location did not occur blade.Belong to machining tool clamp technology field.
Background technology
Aircraft engine blade is owing to adopt thin-wall construction, and required precision is high, and processing rigidity is relatively poor, when machining, very easily produces distortion, causes that profile is reversed, the phenomenons such as buckling deformation and dimension overproof.Except lathe how much and motion control error, thermal deformation of machine tool error, the workpiece torsional deformation error that these mainly are the strain error of contact area between clamping error, workpiece and the anchor clamps between workpiece and anchor clamps and the lathe, cutter relieving distortion inaccuracy that cutting force causes, residual stress causes and numerical control programming error etc.
In the last few years, a large amount of research work were devoted to how to confirm and were eliminated all these source of errors.On the one hand owing to be subject to the restriction of machine tool motion acceleration, the blade processing zone should be arranged near the centre of gyration as far as possible, and because blade rigid is relatively poor, of a great variety, must consist of best clamping scheme by various one-tenth sleeve clamp, on the other hand, the machining deformation error that cutting force, residual stress etc. causes but only just can not avoided by improving grinding machine structure design fully, thereby has limited to a great extent the application of high-precision numerical control machine.These contradictions are particularly remarkable in the process of machining thin-walled parts.
Existing anchor clamps reverse at leaf development, when flexural deformation causes the both-end benchmark inconsistent, clamping position also remains unchanged, thereby makes blade suppress strength in process, causes new internal stress.The present invention makes blade carry out in the raw unstressed clamping, does not namely have serious installation stress between anchor clamps and the workpiece; And utilize eccentric stiffener that supplemental support is provided, so that clamping machine tool power does not act on the blade.
Summary of the invention
1, purpose: the purpose of this invention is to provide a kind of self adaptation eccentric fixture, it is to utilize eccentric stiffener that the unstressed self adaptation both-end clamping device of supplemental support is provided.
2, technical scheme: in order to solve the problems of the technologies described above, the feature of the technical solution used in the present invention is: a kind of self adaptation eccentric fixture, and it comprises: structure is identical but pallet piece that installation direction is opposite, two covers are connected in clamp block fixture on the clip base, one with the pallet piece is used for clip base is connected in flexible connecting device on the lathe for eccentric fixture matrix, two; Position annexation between them is: a pair of pallet piece is installed on the eccentric fixture matrix locating surface, and pallet piece center is coaxial with whole eccentric fixture matrix gyroaxis; Location-plate in the clamp block fixture and pressure strip are arranged on eccentric fixture matrix locating surface both sides.Flexible connecting device is installed on the eccentric fixture matrix left positioner axle, and is provided with the clamp block fixture between flexible connecting device and eccentric fixture matrix.Blade pass is crossed the both-end positioning datum and is installed on the two pallet pieces, and whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device, and opposite side is held out against by the top direct centering of hydraulic pressure.
Described eccentric fixture matrix is seen Fig. 4, is down the half-open frame concave structure of several words, and it is mainly weak rigid thin wall's blade parts supplemental support is provided; Be provided with rectangular-shaped location-plate and pressure strip on it, the pallet piece accurately can be installed on the eccentric fixture matrix.Blade pass is crossed the both-end positioning datum and is installed on the two pallet pieces, whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device, and opposite side is tightly realized the synchronous rotation of clip base and machine tool horizontal rotation of rotary table axle by the hydraulic top pinnacle.
Described pallet piece, it is the symmetrical square structure in four sides of both-end band projecting shaft, its symmetrical centre is by the gyroaxis center, be connected with the axle at the two ends, the left and right sides of the blade workpiece of horizontal positioned, can in different lathes, shift or become other installment state at above-mentioned clip base up conversion in company with blade, as reinstalling around axis of runner blade Rotate 180 degree; Be mainly used in the unstressed accurate locating self-adaption clamping of blade; It is by clamping nut, the flexible joint bearing, the axial compression tapered sleeve, spacing spacer shell, the ball stop nut, square cotter, square tape spool locating piece and black box form, position annexation between them is: spacing spacer shell abuts against with flexible joint bearing outer ring end face and is installed in the axial compression tapered sleeve endoporus, and make the flexible joint bearing conical surface and axial compression tapered sleeve endoporus front end cone match, the axial compression tapered sleeve, spacing spacer shell, the assembly that the flexible joint bearing forms is installed in the endoporus of square tape spool locating piece together, square cotter from square tape spool locating piece square hole and the oblong aperture of axial compression tapered sleeve pass, the ball stop nut is threaded with axial compression tapered sleeve tail end by another axle head aperture of square tape spool locating piece.This clamping nut is that endoporus one side is provided with boss, and restriction flexible joint bearing departs from this pallet piece; The outer surface of the outer ring of this flexible joint bearing is the conical surface, and Internal and external cycle is divided into respectively ring-type three valve structures as thin as a wafer, and Main Function is to clamp blade workpiece reference axis; This spacing spacer shell is the sleeve type structure, is mainly the position that limits the flexible joint bearing; Axial compression tapered sleeve, spacing spacer shell, ball stop nut, square tape spool locating piece form the compression tripping-gear, wherein axial compression tapered sleeve and spacing spacer shell are connected on the pallet block body by square cotter, but the axial elongated slot on the axial compression tapered sleeve allows that this is enclosed within the lower relative body of ball stop nut driving and makes axial way moving.Forward and reverse rotary actuation of ball stop nut axially compresses tapered sleeve and advances or retreat along axis direction, compress or loosen spherical bearing by its inner end taper, reach the purpose that compresses or loosen the axle journal on the blade workpiece, the flexible joint bearing is only done radial motion in compaction process, does not rotate and moves axially.Flexible joint bearing in two pallet pieces allows that the axle at two ends on the blade realizes freely locating or adaptive location in the out-of-alignment situation, guarantee not exist when blade is on being installed on anchor clamps installation stress, this axial compression tapered sleeve is the flexible petal design of tubulose, one end endoporus is the conical surface, one end is screw thread, and cut square slotted hole in the above, Main Function is for the flexible joint bearing centering of its inside and clamping force is provided; This square cotter is that the cross section is tetragonal having strong market potential, and Main Function is by square tape spool locating piece is connected with the axial compression tapered sleeve, thereby makes between the former and the latter without relatively rotating; This square tape spool locating piece is the symmetrical and vertical square in four sides, and the square both sides are with projecting shaft, and projecting shaft is positioned at the square center, and the long end projecting shaft has macropore, and Main Function is in eccentric fixture matrix location and firm grip to the pallet piece; This ball stop nut is pagoda type hierarchic structure, and the little ladder of front end is provided with screw thread, and root has the semicircular ball grooves, and Main Function is by the rotation screw thread axial compression tapered sleeve to be slidably reciprocated in this pallet piece hole.Square tape spool locating piece four sides on it is orthogonal, the two sides is symmetrical mutually relatively, four faces all can be used as locating surface, and benchmark is consistent, by upset, can realize very easily the conversion of four stations of blade, thereby make leaf basin, blade back, the inlet and outlet limit of blade can both be at the optimized cutting station.The pallet piece is installed in the middle of location-plate and the pressure strip, and location-plate and pressure strip are by same bolt tension, and in the tension process, both realize self-centering simultaneously to intermediary movements.Finish to the Y-direction of pallet piece 7 and around the location of Z direction of rotation and clamp.Described black box is comprised of sealed plastic sleeve, dustproof vinyl cover, and dustproof vinyl cover is placed in the sealed plastic sleeve.Its effect is to prevent that the smear metal in the working angles from entering in the pallet piece 7.
Described flexible connecting device, it is the revolution class flange arrangement that is formed by centering flange, adjustment flange and flexible anti-rotation spring combination, the centering of whole eccentric fixture matrix can be installed on the machine tool rotary working table, and transmitting torque only, the interchangeability that anchor clamps use at lathe improved.On the centering circumference of flange four uniform shoulder holes are arranged, screw is fastenedly connected whole self adaptation eccentric fixture and machine tool rotary working table by these four shoulder holes, centering flange, adjustment flange, flexible anti-rotation reed connect in order successively, before being unkitted the adjustment flange, to feel relieved flange locating cone mandrel and clamp body fixation side centre bore closely cooperates, measure the actual range between centering end face of flange and the flexible anti-rotation reed end face, will adjust flange thickness and be ground to above-mentioned size and get final product.Flexible anti-rotation reed has low axial stiffness and high rigid circumference, guarantee to transmit the accuracy of motion and not with the interference of the sharp navigation system of Double Tops.
Described clamp block fixture is to realize the location of two pallet pieces on clip base and fixing by the flexible flexible pressing plate of having of two pairs of consistent size (being location-plate and pressure strip) and two groups of bolts; The nature distance of two flexible pressing plate locking states is slightly smaller than the width of pallet piece, by the automatic centering location that the simultaneous equal distortion of two flexible pressing plates realizes above-mentioned pallet matrix, this principle allows that the sectional dimension of two pallet pieces has certain difference; Blade pass crosses that the pallet piece is connected on the clip base, clip base is connected on the machine tool horizontal turntable by a pair of center hole and a cover flexible connecting device, thereby realizes blade rotatablely moving with the lathe horizontal revolving stage.This clamp block fixture is made of eccentric fixture matrix, location-plate, pressure strip and bolt, nut, location-plate and pressure strip lay respectively at pallet piece both sides and are installed on the clip base, and it mainly is that the pallet piece is accurately located also firm clamping on clip base.This location-plate is to which is provided with connecting through hole and drive fluted rectangle plate; This pressure strip is to which is provided with connecting through hole and drive fluted rectangle plate.
3, advantage and effect: major advantage of the present invention is to make blade carry out in the raw unstressed clamping, does not namely have serious installation stress between anchor clamps and the workpiece; And utilize eccentric stiffener that supplemental support is provided, so that clamping machine tool power does not act on the blade.Thereby can effectively reduce the torsional deflection of the bending in the blade processing, improve the blade processing precision.
Description of drawings
Fig. 1 is self adaptation eccentric fixture structure chart of the present invention.
Fig. 2 a is pallet block structure cut-away view.
Fig. 2 b is pallet block structure axonometric drawing.
Fig. 3 a is flexible connecting device structure cut-away view.
Fig. 3 b is flexible connecting device axis of no-feathering mapping.
Fig. 4 is clamp block fixture schematic diagram.
Fig. 5 is explosive view of the present invention.
Label declaration:
The 1st, eccentric fixture matrix, the 2nd, pressure strip, the 4th, location-plate.
The 3rd, flexible connecting device, 3-1 are flexible anti-rotation reeds, and 3-2 adjusts flange, and 3-3 is the centering flange.
The 5th, black box, 5-1 are the sealed plastic sleeves, and 5-2 is dustproof vinyl cover.
The 6th, blade.
The 7th, pallet piece, 7-1 are clamping nuts, and 7-2 is the flexible joint bearing, and 7-3 is spacing spacer shell, and 7-4 is the axial compression tapered sleeve, and 7-5 is square cotter, and 7-6 is square tape spool locating piece, and 7-7 is the ball stop nut.
The 8th, shop bolt.
The 9th, short soket head cap screw, the 10th, long soket head cap screw.
Wherein m is jackscrew, and n is spherical steel ball.
D1 is carbide-tipped center, and D2 is anchor clamps collective centering centre bore
The specific embodiment
Below in conjunction with the description of drawings embodiments of the invention.
A kind of self adaptation eccentric fixture, it comprises: eccentric fixture matrix 1, pallet piece 7, flexible connecting device 3, location-plate 4, pressure strip 2, black box 5 and clamp block fixture; Position annexation between them is: a pair of pallet piece 7 is installed on eccentric fixture matrix 1 locating surface, and pallet piece 7 centers are coaxial with whole clip base 1 gyroaxis; Location-plate 4 and pressure strip 2 are arranged on clip base 1 locating surface both sides, and black box 5 is installed on pallet piece 7 projecting shafts.Flexible connecting device 3 is installed on the clip base 1 left positioner axle, and is provided with the clamp block fixture between flexible connecting device 3 and eccentric fixture matrix 1.Blade 6 is installed on the two pallet pieces 7 by the both-end positioning datum, and whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device 3, and opposite side is held out against by the top direct centering of hydraulic pressure.
See Fig. 1, Fig. 2 a, b, Fig. 3 a, b and Fig. 4, a kind of self adaptation eccentric fixture, comprise eccentric fixture matrix 1, the pallet piece 7 of mounted in pairs on described eccentric fixture matrix 1 plane of orientation, centering is installed in the flexible connecting device 3 of described eccentric fixture matrix 1 one sides.Be provided with location-plate 4 and pressure strip 2 on the described eccentric fixture matrix 1, pallet piece 7 accurately can be installed on the eccentric fixture matrix 1, be set with the positioning and locking device with both positioning and lockings between the described flexible connecting device 3.Flexible connecting device 3 is the revolution class flange arrangements that combined by centering flange 3-3, adjustment flange 3-2 and flexible anti-rotation reed 3-1, whole eccentric fixture matrix centering can be installed on the machine tool rotary working table, and only transmitting torque has improved the interchangeability that anchor clamps use at lathe.Pallet piece 7, it is the symmetrical square structure in four sides of both-end band projecting shaft, its symmetrical centre is by the gyroaxis center, be connected with the axle at the two ends, the left and right sides of the blade workpiece of horizontal positioned, can in different lathes, shift or become other installment state at above-mentioned clip base up conversion in company with blade, it is by clamping nut 7-1, flexible joint bearing 7-2, axial compression tapered sleeve 7-4, spacing spacer shell 7-3, ball stop nut 7-7, square cotter 7-5, square tape spool locating piece 7-6 and black box 5 form, position annexation between them is: spacing spacer shell 7-3 abuts against with flexible joint bearing 7-2 cycle surface and is installed in the axial compression tapered sleeve 7-4 endoporus, and make the flexible joint bearing 7-2 conical surface and axial compression tapered sleeve 7-4 endoporus front end cone match, axial compression tapered sleeve 7-4, spacing spacer shell 7-3, the assembly that flexible joint bearing 7-2 forms is installed in the endoporus of square tape spool locating piece 7-6 together, square cotter 7-5 from square tape spool locating piece 7-6 square hole and the oblong aperture of axial compression tapered sleeve 7-4 pass, ball stop nut 7-7 is threaded with axial compression tapered sleeve 7-4 tail end by square another axle head aperture of tape spool locating piece 7-6.This clamping nut 7-1 is that endoporus one side is provided with boss, and restriction flexible joint bearing departs from this pallet piece 7; The outer surface of the outer ring of this flexible joint bearing 7-2 is the conical surface, and Internal and external cycle is divided into respectively ring-type three valve structures as thin as a wafer, and Main Function is to clamp blade workpiece reference axis; This spacing spacer shell 7-3 is the sleeve type structure, is mainly the position that limits flexible joint bearing 7-2; Axial compression tapered sleeve 7-4, spacing spacer shell 7-3, ball stop nut 7-6, square tape spool locating piece 7-6 form the compression tripping-gear, axial compression tapered sleeve 7-4 wherein and spacing spacer shell 7-3 are connected on pallet piece 7 bodies by square cotter 7-5, but the axial elongated slot on the axial compression tapered sleeve 7-4 allows that this is enclosed within the lower relative body of ball stop nut 7-7 driving and makes axial way moving.Forward and reverse rotary actuation of ball stop nut 7-7 axially compresses tapered sleeve and advances or retreat along the 7-4 axis direction, compress or loosen spherical bearing by its inner end taper, reach the purpose that compresses or loosen the axle journal on the blade workpiece, flexible joint bearing 7-2 only does radial motion in compaction process, does not rotate and moves axially.Flexible joint bearing 7-2 in two pallet pieces 7 allows that the axle at two ends on the blade realizes freely locating or adaptive location in the out-of-alignment situation, guarantee not exist when blade 6 is on being installed on anchor clamps installation stress, this axial compression tapered sleeve 7-4 is the flexible petal design of tubulose, one end endoporus is the conical surface, one end is screw thread, and cut square slotted hole in the above, Main Function is for the flexible joint bearing 7-2 centering of its inside and clamping force is provided; This square cotter 7-5 is that the cross section is tetragonal having strong market potential, and Main Function is by square tape spool locating piece 7-6 is connected with axial compression tapered sleeve 7-4, thereby makes between the former and the latter without relatively rotating; This square tape spool locating piece 7-6 is the symmetrical and vertical square in four sides, and the square both sides are with projecting shaft, and projecting shaft is positioned at the square center, and the long end projecting shaft has macropore, and Main Function is in eccentric fixture matrix 1 location and firm grip to pallet piece 7; This ball stop nut 7-7 is pagoda type hierarchic structure, and the little ladder of front end is provided with screw thread, and root has the semicircular ball grooves, and Main Function is by the rotation screw thread axial compression tapered sleeve 7-4 to be slidably reciprocated in these pallet piece 7 holes.Square tape spool locating piece 7-6 four sides on it is orthogonal, the two sides is symmetrical mutually relatively, four faces all can be used as locating surface, and benchmark is consistent, by upset, can realize very easily the conversion of four stations of blade, thereby make leaf basin, blade back, the inlet and outlet limit of blade 6 can both be at the optimized cutting station.Pallet piece 7 is installed in the middle of location-plate 4 and the pressure strip 2, and location-plate 4 is strained by same bolt with pressure strip 2, and in the tension process, both whiles are realized self-centering to intermediary movements.Finish to the Y-direction of pallet piece 7 and around the location of Z direction of rotation and clamp.Described black box 5 is comprised of sealed plastic sleeve 5-1, dustproof vinyl cover 5-2, and dustproof vinyl cover 5-2 is placed in the sealed plastic sleeve 5-1.Its effect is to prevent that the smear metal in the working angles from entering in the pallet piece 7.
Take certain h type engine h stator double blade shafts 6 as example, blade 6 two end axles are its machining benchmark, but in process, blade can produce flexural deformation to leaf basin direction.Behind the clamping, thick fine finishining time processing, its this internal stress distortion that causes is difficult to eliminate.But if we have discharged internal stress in process, this distortion will improve greatly.In addition, because so that blade 6 is being suppressed strength in clamping, there is larger clamping stress in the existence of blade 6 clamping both-end coaxiality errors, also caused to a certain extent the profile error of blade 6.Device provided by the present invention can head it off.
As shown in Figure 1, blade 6 is installed on the two pallet pieces 7 by the both-end positioning datum, and whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device 3, and opposite side is tight by the hydraulic top pinnacle.
Described pallet piece 7, square locating piece four sides on it is orthogonal, the two sides is symmetrical mutually relatively, four faces all can be used as locating surface, and benchmark is consistent, by upset, can realize very easily the conversion of four stations of blade, thereby make leaf basin, blade back, the inlet and outlet limit of blade 6 can both be at the optimized cutting station.
Described pallet piece 7 is installed in the middle of location-plate 4 and the pressure strip 2, and location-plate 4 and pressure strip 2 are strained simultaneously by bolt, and in the tension process, both realize self-centering simultaneously to intermediary movements.Finish to square positioning component Y-direction and around the location of Z direction of rotation and clamp.
As shown in Figure 1, utilize eccentric matrix 1 to do supplemental support and make clamping machine tool power not act on weak rigid blade, and utilize pallet piece 7 to be implemented in when blade locating surface position changes to adapt to this variation always.
Embodiment described above is for the present invention is described, but not in order to limit the present invention.Scope of invention is by the circumscription of additional claim.
Claims (1)
1. self adaptation eccentric fixture device is characterized in that: this device comprises an eccentric fixture matrix, two structure is identical but pallet piece that installation direction is opposite, two covers are connected in clamp block fixture on the clip base and one with the pallet piece is used for clip base is connected in flexible connecting device on the lathe; A pair of pallet piece is installed on the eccentric fixture matrix locating surface, and pallet piece center is coaxial with whole eccentric fixture matrix gyroaxis; Location-plate in the clamp block fixture and pressure strip are arranged on eccentric fixture matrix locating surface both sides; Flexible connecting device is installed on the eccentric fixture matrix left positioner axle, and is provided with the clamp block fixture between flexible connecting device and eccentric fixture matrix; Blade pass is crossed the both-end positioning datum and is installed on the two pallet pieces, and whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device, and opposite side is held out against by the top direct centering of hydraulic pressure;
Described eccentric fixture matrix is down the half-open frame concave structure of several words, and it provides supplemental support for weak rigid thin wall's blade parts; Be provided with rectangular-shaped location-plate and pressure strip on it, the pallet piece accurately can be installed on the eccentric fixture matrix; Blade pass is crossed the both-end positioning datum and is installed on the two pallet pieces, whole chucking appliance system one side is connected with machine tool rotary working table by flexible connecting device, and opposite side is tightly realized the synchronous rotation of clip base and machine tool horizontal rotation of rotary table axle by the hydraulic top pinnacle;
Described pallet piece, it is the symmetrical square structure in four sides of both-end band projecting shaft, its symmetrical centre is by the gyroaxis center, be connected with the axle at the two ends, the left and right sides of the blade workpiece of horizontal positioned, in different lathes, shift or become other installment state at above-mentioned clip base up conversion in company with blade, be used for the unstressed accurate locating self-adaption clamping of blade; It is by clamping nut, the flexible joint bearing, the axial compression tapered sleeve, spacing spacer shell, the ball stop nut, square cotter, square tape spool locating piece and black box form, spacing spacer shell abuts against with flexible joint bearing outer ring end face and is installed in the axial compression tapered sleeve endoporus, and make the flexible joint bearing conical surface and axial compression tapered sleeve endoporus front end cone match, the axial compression tapered sleeve, spacing spacer shell, the assembly that the flexible joint bearing forms is installed in the endoporus of square tape spool locating piece together, square cotter from square tape spool locating piece square hole and the oblong aperture of axial compression tapered sleeve pass, the ball stop nut is threaded with axial compression tapered sleeve tail end by another axle head aperture of square tape spool locating piece; This clamping nut is that endoporus one side is provided with boss, and restriction flexible joint bearing departs from this pallet piece; The outer surface of the outer ring of this flexible joint bearing is the conical surface, and Internal and external cycle is divided into respectively ring-type three valve structures as thin as a wafer, and its effect is to clamp blade workpiece reference axis; This spacing spacer shell is the sleeve type structure, for limiting the position of flexible joint bearing; Axial compression tapered sleeve, spacing spacer shell, ball stop nut, square tape spool locating piece form the compression tripping-gear, axial compression tapered sleeve wherein and spacing spacer shell are connected on the servo-actuated clamp block body by square cotter, but the axial elongated slot on the axial compression tapered sleeve allows that this is enclosed within the lower relative body of ball stop nut driving and makes axial way moving; Forward and reverse rotary actuation of ball stop nut axially compresses tapered sleeve and advances or retreat along axis direction, compress or loosen spherical bearing by its inner end taper, reach the purpose that compresses or loosen the axle journal on the blade workpiece, the flexible joint bearing is only done radial motion in compaction process, does not rotate and moves axially; Flexible joint bearing in two pallet pieces allows that the axle at two ends on the blade realizes freely locating or adaptive location in the out-of-alignment situation, guarantee not exist when blade is on being installed on anchor clamps installation stress, this axial compression tapered sleeve is the flexible petal design of tubulose, one end endoporus is the conical surface, one end is screw thread, and cut square slotted hole in the above, its effect is for the flexible joint bearing centering of its inside and clamping force is provided; This square cotter is that the cross section is tetragonal having strong market potential, and its effect is by square tape spool locating piece is connected with the axial compression tapered sleeve, thereby makes between the former and the latter without relatively rotating; This square tape spool locating piece is the symmetrical and vertical square in four sides, and the square both sides are with projecting shaft, and projecting shaft is positioned at the square center, and the long end projecting shaft has macropore, and its effect is in eccentric fixture matrix location and firm grip to the pallet piece; This ball stop nut is pagoda type hierarchic structure, and the little ladder of front end is provided with screw thread, and root has the semicircular ball grooves, and its effect is by the rotation screw thread axial compression tapered sleeve to be slidably reciprocated in this pallet piece hole; Square tape spool locating piece four sides on it is orthogonal, and the two sides is symmetrical mutually relatively, and four faces all can be used as locating surface, and benchmark is consistent, by upset, realize the conversion of four stations of blade, thereby make leaf basin, blade back, the inlet and outlet limit of blade can both be at the optimized cutting station; The pallet piece is installed in the middle of location-plate and the pressure strip, and location-plate and pressure strip are by same bolt tension, and in the tension process, both realize self-centering simultaneously to intermediary movements, finish to square positioning component Y-direction and around the location of Z direction of rotation to clamp; The sealing assembly is comprised of sealed plastic sleeve, dustproof vinyl cover, and dustproof vinyl cover is placed in the sealed plastic sleeve, and its effect is to prevent that the smear metal in the working angles from entering in the square positioning component;
Described flexible connecting device, it is the revolution class flange arrangement that is formed by centering flange, adjustment flange and flexible anti-rotation spring combination, the centering of whole eccentric fixture matrix is installed on the machine tool rotary working table, and transmitting torque only, the interchangeability that anchor clamps use at lathe improved; On the centering circumference of flange four uniform shoulder holes are arranged, screw is fastenedly connected whole self adaptation eccentric fixture and machine tool rotary working table by these four shoulder holes, centering flange, adjustment flange, flexible anti-rotation reed connect in order successively, before being unkitted the adjustment flange, to feel relieved flange locating cone mandrel and clamp body fixation side centre bore closely cooperates, measure the actual range between centering end face of flange and the flexible anti-rotation reed end face, will adjust flange thickness and be ground to above-mentioned size and get final product; Flexible anti-rotation reed has low axial stiffness and high rigid circumference, guarantee to transmit the accuracy of motion and not with the interference of the sharp navigation system of Double Tops;
Described clamp block fixture is to realize the location of two pallet pieces on clip base and fixing by two pairs of flexible pressing plates-be location-plate and pressure strip and two groups of bolts; It is made of eccentric fixture matrix, location-plate, pressure strip and bolt, nut, and location-plate and pressure strip lay respectively at pallet piece both sides and be installed on the clip base; This location-plate is to which is provided with connecting through hole and drive fluted rectangle plate; This pressure strip is to which is provided with connecting through hole and drive fluted rectangle plate.
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| CN110014310A (en) * | 2017-11-28 | 2019-07-16 | 海勒机械制造兄弟有限公司 | Work holder arrangements |
| CN111272542A (en) * | 2020-04-06 | 2020-06-12 | 中国飞机强度研究所 | Composite material T-shaped joint pull-off test device |
| CN111571266A (en) * | 2020-06-17 | 2020-08-25 | 华中科技大学无锡研究院 | Flexible clamp for controlling machining deformation of thin-wall blade and blade clamping method |
| CN111673496A (en) * | 2020-05-15 | 2020-09-18 | 成都飞机工业（集团）有限责任公司 | Flexible fixture with self-adaptive support and multi-point compression |
| CN114473242A (en) * | 2022-03-10 | 2022-05-13 | 深圳市俩棵树科技有限公司 | Semiconductor diode desktop level laser cutting machine |
| CN118218631A (en) * | 2024-05-23 | 2024-06-21 | 长春汽车工业高等专科学校 | Double-eccentric clamp for turning eccentric shaft neck and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166935A (en) * | 1986-01-16 | 1987-07-23 | Honda Motor Co Ltd | Support device for rotary tool |
| JPH0592336A (en) * | 1991-09-27 | 1993-04-16 | Hino Motors Ltd | Clamp device for long-size workpiece |
| CN101518875A (en) * | 2008-11-24 | 2009-09-02 | 中国航天科技集团公司长征机械厂 | Precision positioning and clamping device of lathe |
| CN101570008A (en) * | 2009-06-05 | 2009-11-04 | 广东工业大学 | Flexible fixture device and operation method thereof |
| CN201645206U (en) * | 2010-01-21 | 2010-11-24 | 西北工业大学 | Numerically controlled machining precise positioning fixture for blades |
| CN201871973U (en) * | 2010-11-11 | 2011-06-22 | 西北工业大学 | Precise positioning clamp for digital control processing of thin-walled blade |
| CN202224993U (en) * | 2011-08-04 | 2012-05-23 | 德阳钰鑫机械制造有限公司 | Dedicated tool for processing molded surface of moving blade of large-scale steam turbine set |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU553083A1 (en) * | 1973-03-28 | 1977-04-05 | Бюро Взаимозаменяемости В Металлообрабатывающей Промышленности Министерства Станкостроительной И Инструментальной Промышленности | Device for the installation of parts of complex shape |
-
2012
- 2012-12-28 CN CN201210586642.5A patent/CN103009155B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166935A (en) * | 1986-01-16 | 1987-07-23 | Honda Motor Co Ltd | Support device for rotary tool |
| JPH0592336A (en) * | 1991-09-27 | 1993-04-16 | Hino Motors Ltd | Clamp device for long-size workpiece |
| CN101518875A (en) * | 2008-11-24 | 2009-09-02 | 中国航天科技集团公司长征机械厂 | Precision positioning and clamping device of lathe |
| CN101570008A (en) * | 2009-06-05 | 2009-11-04 | 广东工业大学 | Flexible fixture device and operation method thereof |
| CN201645206U (en) * | 2010-01-21 | 2010-11-24 | 西北工业大学 | Numerically controlled machining precise positioning fixture for blades |
| CN201871973U (en) * | 2010-11-11 | 2011-06-22 | 西北工业大学 | Precise positioning clamp for digital control processing of thin-walled blade |
| CN202224993U (en) * | 2011-08-04 | 2012-05-23 | 德阳钰鑫机械制造有限公司 | Dedicated tool for processing molded surface of moving blade of large-scale steam turbine set |
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| CN103551866A (en) * | 2013-11-04 | 2014-02-05 | 大连飞达重型机床制造有限公司 | Constant-current static-pressure rolling composite guide rail and automatic centering technological worktable |
| CN103600250A (en) * | 2013-11-21 | 2014-02-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Self-adaptive blade clamping and positioning device |
| CN103600250B (en) * | 2013-11-21 | 2015-11-04 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of blade self adaptation clamping and positioning device |
| 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 |
| CN104858682B (en) * | 2015-05-07 | 2017-12-26 | 北京航空航天大学 | A kind of blade processing Deformation control both arms Self adapting fixture |
| CN104858682A (en) * | 2015-05-07 | 2015-08-26 | 北京航空航天大学 | Double-arm self-adapting fixture used for controlling machining deformation of blade |
| CN105014435A (en) * | 2015-08-07 | 2015-11-04 | 浙江通泰轴承有限公司 | Self-adaptation clamp |
| CN105014435B (en) * | 2015-08-07 | 2017-05-24 | 浙江通泰轴承有限公司 | Self-adaptation clamp |
| CN106392695A (en) * | 2016-09-14 | 2017-02-15 | 何世华 | Fixing method for machining engine blade |
| US11059136B2 (en) | 2017-11-28 | 2021-07-13 | Gebr. Heller Maschinenfabrik Gmbh | Workpiece holder device |
| CN110014310B (en) * | 2017-11-28 | 2022-03-29 | 海勒机械制造兄弟有限公司 | Workpiece holder device |
| CN110014310A (en) * | 2017-11-28 | 2019-07-16 | 海勒机械制造兄弟有限公司 | Work holder arrangements |
| CN108188456A (en) * | 2018-02-12 | 2018-06-22 | 湘潭市智全机械有限公司 | A kind of centrifuge milled screen stencil device |
| CN108942343A (en) * | 2018-09-30 | 2018-12-07 | 山西华翔集团股份有限公司 | A kind of air-conditioner compressor crankshaft eccentric shaft outer circle novel clamp |
| CN108942343B (en) * | 2018-09-30 | 2024-03-08 | 山西华翔集团股份有限公司 | Novel clamp for outer circle of crankshaft eccentric shaft of air conditioner compressor |
| CN109128942A (en) * | 2018-11-08 | 2019-01-04 | 衡阳市振洋汽车配件有限公司 | Convenient for the fixture of hole machined in special-shaped axis |
| CN111272542A (en) * | 2020-04-06 | 2020-06-12 | 中国飞机强度研究所 | Composite material T-shaped joint pull-off test device |
| CN111673496A (en) * | 2020-05-15 | 2020-09-18 | 成都飞机工业（集团）有限责任公司 | Flexible fixture with self-adaptive support and multi-point compression |
| CN111571266A (en) * | 2020-06-17 | 2020-08-25 | 华中科技大学无锡研究院 | Flexible clamp for controlling machining deformation of thin-wall blade and blade clamping method |
| CN114473242A (en) * | 2022-03-10 | 2022-05-13 | 深圳市俩棵树科技有限公司 | Semiconductor diode desktop level laser cutting machine |
| CN118218631A (en) * | 2024-05-23 | 2024-06-21 | 长春汽车工业高等专科学校 | Double-eccentric clamp for turning eccentric shaft neck and use method thereof |
| CN118218631B (en) * | 2024-05-23 | 2024-07-12 | 长春汽车工业高等专科学校 | Double-eccentric clamp for turning eccentric shaft neck and use method thereof |
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