CN203245393U - Hydraulic chuck overturning device - Google Patents
Hydraulic chuck overturning device Download PDFInfo
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- CN203245393U CN203245393U CN 201320229139 CN201320229139U CN203245393U CN 203245393 U CN203245393 U CN 203245393U CN 201320229139 CN201320229139 CN 201320229139 CN 201320229139 U CN201320229139 U CN 201320229139U CN 203245393 U CN203245393 U CN 203245393U
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Abstract
The utility model discloses a hydraulic chunk overturning device. The hydraulic chunk overturning device is characterized in that a supporting connecting piece, a hydraulic chunk, a chunk overturning device body and a chunk locking device are included, the hydraulic chunk is arranged in the supporting connecting piece through the chunk overturning device body, and the chunk locking device is arranged in the position of a rotating shaft of the overturning device body. Through the special arrangement of an inside oil way, compared with an existing chunk, the two clamped ends of a workpiece can be machined, through overturning the chunk, as long as one-time assembly is realized, and the whole overturning and clamping process is completely controlled by hydraulic pressure, so that the centering clamping motion precision of the workpiece and chunk overturning precision can be ensured.
Description
Technical field
The utility model relates to chuck assembly, particularly a kind of hydraulic overturn chuck assembly.
Background technology
The numerically controlled lathe that China produces all belongs to universal process equipment, because lathe does not have the characteristic of professional consideration pipe box cupling screw thread processing in design, being mainly reflected in needs in the screw thread process of box cupling two ends to be installed for 2 times, cause that common apparatus efficient in processing tube box cupling threaded process is low, the generation of unstable product quality situation, cause the waste of the energy and processing cost; And the raising of combined reliability depend on the functional characteristics of machine tool component and high accuracy, high rigid components in running with the combining closely of high control precision software, to realize the long-term stability of product quality in process.
Along with hydraulic technique progressively develops, move with respect to the script mechanical elements for hydraulic control component, be significantly increased in kinematic accuracy and motion controllability, by combining of hydraulic principle and frame for movement, and hydraulic pressure reasonable in design is equipped with oil circuit, realization drives the hydraulic control of whole device, and then chuck assembly kinematic accuracy and bearing capacity all improve a lot.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of hydraulic overturn chuck assembly of being controlled and can be finished high accuracy upset and accurate centering clamping by hydraulic pressure fully.
For reaching above purpose, be achieved through the following technical solutions:
A kind of hydraulic overturn chuck assembly comprises: support connecting piece, oild chuck, chuck turning device and locking chuck device;
Support connecting piece comprises: supporter and adpting flange, and by being machined in respectively the short cylindrical locating hole orientation assemble of supporter bottom and adpting flange upper surface, and it is fastening to pass through bolt circle;
Supporter has connected to form supporter and adpting flange, and two by short cylindrical locating hole orientation assemble, and fastening with 12 M12 bolt circles is assembly, and and spindle mounted, realized rotation and the moment of torsion transmission of main shaft;
Adpting flange is processed with many independently oilhole passages, and each bar oil line pipe of these oilhole passages and supporter connects one to one, and has formed the hydraulic circuit of each executive component in overturning chuck, locking device, the turning device; The formation of these hydraulic circuits depends primarily on the dynamic Control that the oil circuit of oil path block by oil pipe and oil path distributor is connected to form.Position signalling inductive component and position transmitting assembly also are installed in annex.
The support connecting piece lower end is fixed with oil path block, and the oil circuit of oil path block by oil path distributor on oil pipe and the lathe is connected;
Supporter is the high accuracy foundry goods, and fine finishining after the moulding is with four chip removal cavitys of supporter Central Symmetry distribution; The supporter outer wall is processed with the convex edge, and the outer convex edge of supporter sidewall is fixed with 4 annular glands; The annular gland lower end is fixed with annular oil circuit gland I, and namely annular gland, annular oil circuit gland I and supporter outer wall form sealed cavity; The enclosure space of supporter is comprised of supporter itself, 4 curved cover plates forming annular gland, has protected electric and Hydraulic Elements.The fine finishining of supporter front end has the locating hole of 4 assembling chucks, and its position degree requires very high, is respectively 180 ° of turning device installing holes on the direction; Locking device installing hole on ± 90 ° of directions;
Supporter upper axial end worker is useful on 4 locating holes that oild chuck is installed, and 4 its positions of locating hole are 4 etc. to divide supporter to distribute; The chuck turning device is fixed in a pair of symmetrical locating hole; The locking chuck device is fixed in another in the symmetrical locating hole;
Oild chuck is annulus, mesothyrid column structure, and frame for movement comprises: the chuck lubrication assembly that overturning chuck, 6 plunger-type cylinders that are fixed on the annular oil circuit gland II on the overturning chuck, annular oil circuit gland III, synchronous mechanism, circle distribution, hydraulic circuit and valve assembling are joined and cooperated with 6 plunger-type cylinders; Be provided with in the overturning chuck for the groove of placing 6 plunger-type cylinders; Synchronous mechanism is arranged at the plunger hydraulic cylinder interior; Annular oil circuit gland II, annular oil circuit gland III are individually fixed in the overturning chuck both ends of the surface; Overturning chuck is processed with horizontal axis hole; The chuck turning device is installed in the axis hole of overturning chuck by the hydraulic swing rotating shaft, and chuck turning device and overturning chuck interlock; Locking chuck mechanism is arranged at overturning chuck axis hole lower end;
Oild chuck is annulus, mesothyrid column structure, and its frame for movement comprises: channels designs and the valve assembling of overturning chuck, annular oil circuit gland, annular oil circuit gland, synchronous mechanism, 6 plunger-type cylinders, hydraulic circuit joined, chuck is lubricated.
Architectural feature: overturning chuck has played the effect that the precision in the assembling and positioning is transmitted as the main component of oild chuck.Assembling and the cooperation of other entire infrastructures of oild chuck have been satisfied at fabrication design.Annular oil circuit gland is fixed by bolts to a side of overturning chuck with the end cap form; Be designed with two cannelures in the annular oil circuit gland, under the oil sealing effect of black box, form two asphalt channels with overturning chuck, support the hydraulic commutating circuit of 6 plunger-type cylinders.Same annular oil circuit gland is fixed by bolts in the cannelure of overturning chuck opposite side with the end cap form; Be designed with two cannelures in the annular oil circuit gland, under the oil sealing effect of black box, form an asphalt channel and a gas channels with overturning chuck.6 plunger-type cylinders are uniform on 360 ° of chuck, and box cupling is formed symmetrical clamping.Form for the rodless cavity of each hydraulic cylinder and the oil circuit of rod chamber, designed the oilhole passage at overturning chuck.Wherein 3 plunger-type cylinders are linked with synchronous mechanism on 120 ° of angles, have had under low-pressure state the function of the clamping of feeling relieved synchronously; Other 3 plunger-type cylinders are for floating clamp position, and its Clamping Center is unrestricted, hydraulic pressure greater than 8 kilograms of states under, begin action;
Synchronous mechanism is to be lower than 8 kilograms mechanics design according to fluid pressure, guarantee when low pressure promotes 3 plunger-type cylinder motions, synchronous ring is connected with 3 plungers by selling synchronously, controls the uniformity of 3 plunger motion speed, and then has realized the function of 3 pawls centering clamping.
The chuck turning device comprises: the hydraulic control circuit of hydraulic rotating axis mechanism, chuck action element and gas circuit and switching mechanism;
The hydraulic rotating axis mechanism comprises: hydraulic swing rotating shaft and rotating shaft supporter; The hydraulic swing rotating shaft is positioned on the supporter by bolted by rotating shaft supporter front end locating hole; The overturning chuck cover is as in the hydraulic swing rotating shaft, and overturning chuck is provided with for the fixing oil circuit positioning sleeve of hydraulic swing rotating shaft; The other end of hydraulic swing rotating shaft is fitted in the oil circuit positioning sleeve of overturning chuck, and by thrust bearing finish with overturning chuck axially and radial location; Overturning chuck is processed with the axial location hole; Hydraulic control circuit and gas circuit are and oil path distributor and the oil pipe in the inner hole of spindle of main spindle box afterbody form the chuck pressure circuit, and gas circuit;
Hydraulic control circuit and gas circuit are and oil path distributor and the oil pipe in the inner hole of spindle of main spindle box afterbody form the overturning chuck pressure circuit, and gas circuit.
Switching mechanism comprises: turning gear axle, cylinder thrust bearing and bearing gland; Turning gear axle and overturning chuck axis location hole are interference fits, and are positioned the chuck axis direction by briquetting and fastening bolt, realize being rigidly connected; The gear end top of turning gear axle, the inner ring of cylinder thrust bearing is installed, and the outer ring of cylinder thrust bearing is embedded in the locating hole of bearing gland, and bearing gland is fitted into the locating hole I of supporter together with bearing outer ring, and the bearing gland cylindrical is on the axial direction to be fixed with bolt;
The locking chuck device comprises: locking positioning hydraulic cylinder, locking chuck seat, hydraulic circuit and position feedback mechanism form.
The locking positioning hydraulic cylinder is hydraulic cylinder with double piston rods, and is comprised of cylinder body, bidirectional piston, cylinder cap and black box hydraulic cylinder.Cylinder body is positioned by alignment pin to fix with bolt among the axis location hole of supporter, becomes the fixed body that bidirectional piston produces relative displacement.The hydraulic cylinder cylinder cap is by the location of alignment pin, and at the cylinder body end face, the precise positioning of alignment pin is the installation of satisfying fluid pressure line and position feedback mechanism in cylinder body and the cylinder cap with bolted.Dust cap in the cylinder body outermost end, has played the protective effect to hydraulic package with bolted.Described locking positioning hydraulic cylinder is symmetric design, is positioned on 180 ° of planes of supporter;
The locking chuck seat is comprised of location cylinder cap and locking bed, the inner circle of the cylindrical of locking bed and location cylinder cap, realize the integraty assembling by stronger interference fit, its assembly has been realized 180 ° the axis location of locking hole on the centralized positioning on the chuck thickness and chuck cylindrical by the location of cylindrical hole.
Supporter is a foundry goods that machining accuracy is very high, between former and later two end faces, is processed with for 4 support sections that oil circuit assembling and upset assembling are installed, and 4 casting open spaces that are used for chip removal;
Adopt the utility model of technique scheme to realize chuck is clamped, the complete hydraulic control to above-mentioned action by being equipped with reasonable mechanism and oil circuit, is realized in chuck upset and chuck location, so not only improve the positioning accuracy of chuck, and promoted the integrated model bearing capacity of chuck; Because chuck is realized rotary movement by hydraulic control, like this in workpiece process, only need disposable assembling, the two ends that just can realize piece-holder by rotary movement process, and hydraulic control upset has extraordinary upset precision control, has guaranteed machining accuracy behind the workpiece turning; Like this to requiring high accuracy, and high-intensity processing work has good applicability.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
The utility model is totally 13 width of cloth accompanying drawings, wherein:
Fig. 1 is support connecting piece plan structure schematic diagram of the present utility model.
Fig. 2 is support connecting piece A-A cross-sectional view of the present utility model.
Fig. 3 is support connecting piece B-B cross-sectional view of the present utility model.
Fig. 4 is that oild chuck of the present utility model is overlooked the cross-section structure enlarged diagram.
Fig. 5 is oild chuck side-looking cross-section structure enlarged diagram of the present utility model.
Fig. 6 is oild chuck hydraulically-controlled one-way valve assembling cross-section structure enlarged diagram of the present utility model.
Fig. 7 is oild chuck accumulator cross-section structure enlarged diagram of the present utility model.
Fig. 8 is oild chuck lubricant passage way cross-section structure enlarged diagram of the present utility model.
Fig. 9 is chuck turning device side-looking cross-section structure enlarged diagram of the present utility model.
Figure 10 is chuck turning device tight lock part cross-section structure enlarged diagram of the present utility model.
Figure 11 is chuck turning device oil circuit distribution structure enlarged diagram of the present utility model.
Figure 12 is locking chuck device side-looking cross-section structure enlarged diagram of the present utility model.
Figure 13 is locking chuck device A-A cross-section structure enlarged diagram of the present utility model.
The specific embodiment
Such as Fig. 1, Fig. 2 and a kind of hydraulic overturn chuck assembly shown in Figure 3, comprising: support connecting piece, oild chuck, chuck turning device and locking chuck device;
Support connecting piece comprises: supporter 1.3 and adpting flange 2.3, and by being machined in respectively short cylindrical locating hole 27.3 orientation assembles of supporter 1.3 bottoms and adpting flange 2.3 upper surfaces, and fastening by bolt circle;
Adpting flange 2.3 not only is connector, adpting flange 2.3 is processed with many independently oilhole passages simultaneously, these oilhole passages and supporter 1.3 each bar oil line pipe connect one to one, and have formed the hydraulic circuit of each executive component in overturning chuck, locking device, the turning device;
The support connecting piece lower end is fixed with oil path block 29.3, and the oil circuit of oil path block 29.3 by oil path distributor on oil pipe and the lathe is connected;
Supporter 1.3 is the high accuracy foundry goods, and fine finishining after the moulding is with four chip removal cavitys of supporter 1.3 Central Symmetries distribution; Supporter 1.3 outer walls are processed with the convex edge, and supporter 1.3 outer convex edge sidewalls are fixed with 4 annular glands 12.3; Annular gland 12.3 lower ends are fixed with annular oil circuit gland I 3.3, and namely annular gland 12.3, annular oil circuit gland I 3.3 form sealed cavity with supporter 1.3 outer walls;
Supporter 1.3 upper axial end are processed with for 4 locating holes that oild chuck is installed, and 4 its positions of locating hole are 4 etc. to divide supporter 1.3 to distribute; The chuck turning device is fixed in a pair of symmetrical locating hole place; The locking chuck device is fixed in another to symmetrical locating hole place;
Supporter connects and annex forms and 2.3, two of supporter 1.3 and adpting flanges arranged by short cylindrical locating hole 27.3 orientation assembles, and fastening with 12 M12 bolt circles is assembly, and and spindle mounted, realized rotation and the moment of torsion transmission of main shaft.
Adpting flange not only is connector, have in the simultaneously adpting flange design many independently the oilhole passage as: shown in (28.3,29.3), each bar oil line pipe in these passages and the supporter annex connects one to one such as (13.3,14.3,5.3) etc., has formed the hydraulic circuit of each executive component in overturning chuck, locking device, the turning device.The formation of these hydraulic circuits depends primarily on the dynamic Control that the oil circuit of oil path block 29.3 by oil pipe and oil path distributor is connected to form.Position signalling inductive component (21.3,9.3) and position transmitting assembly (18.3,6.3) also are installed in annex.
Supporter 1.3 is the foundry goods that casting accuracy is very high, fine finishining after the moulding, and (23.3,24.3,25.3,26.3) are the casting open spaces among the figure, for iron filings are got rid of passage.The enclosure space of supporter 1.3 is comprised of supporter 1.3 itself, annular gland and 4 annular glands 12.3, has protected electric and Hydraulic Elements.Supporter 1.3 front end fine finishining the locating holes of 4 assembling chucks, its position degree requires very high, is respectively 180 ° of turning device installing holes on the direction; Locking device installing hole on ± 90 ° of directions.
Be annulus, mesothyrid column structure such as Fig. 4 to oild chuck shown in Figure 8, frame for movement comprises: overturning chuck 53.1,6 plunger-type cylinders that are fixed on the annular oil circuit gland II 3.2 on the overturning chuck 53.1, annular oil circuit gland III 10.2, synchronous mechanism, circle distribution, hydraulic circuit and 28.2 assemblings of valve group and the chuck lubrication assembly 34.2 that cooperates with 6 plunger-type cylinders; Be provided with in the overturning chuck 53.1 for the groove of placing 6 plunger-type cylinders; Synchronous mechanism is arranged at the plunger hydraulic cylinder interior; Annular oil circuit gland II 3.2 and annular oil circuit gland III 10.2 are separately fixed on overturning chuck 53.1 both ends of the surface; Overturning chuck 53.1 is processed with horizontal axis hole; The chuck turning device is installed in the axis hole of overturning chuck 53.1 by upset rotating shaft 3.1, and chuck turning device and overturning chuck 53.1 interlocks; Locking chuck mechanism is arranged at overturning chuck 53.1 axis hole lower ends;
As Fig. 4 to oild chuck shown in Figure 8 be annulus, mesothyrid column structure, comprising: passage A, the B of overturning chuck 53.1, annular oil circuit gland II 3.2, annular oil circuit gland III 10.2, synchronous mechanism (4.2,5.2,8.2) 6 plunger-type cylinder T, F, hydraulic circuit design and 28.2 assemblings of valve group, chuck lubricated 34.2.
Architectural feature: overturning chuck 53.1 has played the effect that the precision in the assembling and positioning is transmitted as the main component of oild chuck.Assembling and the cooperation of other entire infrastructures of oild chuck have been satisfied at fabrication design.Annular oil circuit gland II 3.2 is fixed on a side of overturning chuck 53.1 with bolt 2.2 with the end cap form; Be designed with two cannelures in the annular oil circuit gland II 3.2, under the oil sealing effect of black box 14.2, form two asphalt channel A, B with overturning chuck 53.1, support the hydraulic commutating circuit of 6 plunger-type cylinder T, F.Same annular oil circuit gland III 10.2 is fixed in the cannelure of overturning chuck 53.1 opposite sides with the end cap form with bolt 11.2; Be designed with two cannelures in the annular oil circuit gland III 10.2, under the oil sealing effect of black box 16.2, form an asphalt channel A and a gas channels Q with overturning chuck 53.1.6 plunger-type cylinder T, F are uniform on 360 ° of overturning chuck 53.1, and box cupling is formed symmetrical clamping.Oil circuit for rodless cavity among Fig. 9 of each hydraulic cylinder (A5, A18) and rod chamber (B5, B9) forms, and has designed oilhole passage (A3, B2, B6, A16) at overturning chuck 53.1.Wherein 3 hydraulic plungers (T1, T2, T3) are linked with synchronous mechanism (4.2,5.2,8.2) on 120 ° of angles, have had under low-pressure state the function of the clamping of feeling relieved synchronously; Other 3 hydraulic plungers (F1, F2, F3) are for floating clamp position, and its Clamping Center is unrestricted, hydraulic pressure greater than 8 kilograms of states under, begin action.
Synchronous mechanism (4.2,5.2,8.2) is to be lower than 8 kilograms mechanics design according to fluid pressure, guarantee when low pressure promotes 3 plunger T1, T2, T3 motion, synchronous ring 4.2 is connected with 3 plunger T1, T2, T3 by synchronous pin 5.2, control the uniformity of 3 plunger T1, T2, T3 movement velocity, and then realized the function of 3 pawls centering clamping.
In-plane on the mobile piston 38.2 upper end rectangular apertures of the at first signal 12.2 of 3 T cylinders of hydraulic cylinder body, 3 F cylinder body 7.2 cylindricals, be parallel to annular oil circuit gland II 3.2 and pack in 6 locating holes of overturning chuck 53.1 39.2 into, mobile piston 38.2 upper end rectangular apertures have realized that the piston movement position of 6 hydraulic cylinder T, F installs cannelure R3 with synchronous ring 4.2 and be communicated with.Circumference at 6 plungers is processed with the pilot hole 37.2 that limits its motion, in its when assembling, be positioned at the vertical rectangle plane and in the rectangle square hole, 6 hollow guiding covers 8.2 embed in the plunger pilot hole 37.2 movingly, the fairlead assembling is in order to prevent 6 plungers in the rectilinear motion process, the rotation on the circumference to occur; 3 synchronously the cylindrical end of pin 5.2 embed movingly in fairlead 8.2 hollow of 3 T cylinders, rectangular end embeds in synchronous ring 4.2 rectangular channels movingly.Other 3 F oil cylinders do not have this assembling, are floating cylinder.Be loaded on the overturning chuck 53.1 cylindrical centers of vertical direction with two cylinder caps (1.2,6.2) of locking bed, also have 4 cylinder caps 26.2 to be loaded on the chuck cylindrical of all the other 4 cylinder bodies, form 6 hydraulic cylinder structures, black box comprises 33.2 and 34.2 etc., and cylinder cap is fastening with bolt 27.2.
The action of hydraulic circuit passage and low pressure centering, the unsteady clamping of high pressure is finished:
Piston-type hydraulic cylinder (T1, T2, T3) the synchronous oil circuit oil inlet passage of low pressure centering: the annular chamber A0 that oil circuit positioning sleeve 8.1 and overturning chuck 53.1 form: C9 → A1 among the oilhole Fig. 9 among Fig. 9 in C8 → overturning chuck 53.1 → less than 8 kilograms of hydraulic couplings the time, assemble the circular passage D3 → plunger-type cylinder (T1 that forms through overturning chuck 53.1 oilhole D2 → cylinder bodies 12.2 and overturning chuck 53.1, T2, T3) rodless cavity D4 → pressure fluid promotes three plungers and moves to overturning chuck 53.1 centers, the clamping box cupling, simultaneously by three synchronously pin 5.2 drive synchronous ring 4.2 rotations, the rotation of synchronous ring 4.2 has forcibly restricted three plunger movements at the uniform velocity, has finished the process of low pressure centering clamping; The high pressure clamping of three plungers (T1, T2, T3) is waited for when three D4 cavity pressures are raised to required high-pressure and can be finished.The oil return of the rod chamber B5 of three hydraulic cylinders (T1, T2, T3): the annular chamber B0 that A9 → oil circuit positioning sleeve 8.1 and overturning chuck 53.1 form among the oilhole Fig. 9 in the circular oil groove B1 that annular chamber B3 → overturning chuck 53.1 oilhole B2 that B5 fluid → cylinder body 12.2 oilhole B4 → cylinder bodies 12.2 and overturning chuck 53.1 form → annular oil circuit gland II 3.2 and overturning chuck 53.1 form → overturning chuck 53.2: A8 oil return among Fig. 9.
When three hydraulic cylinders (T1, T2, T3) when piston is opened, two oil circuit pressure oils and oil return convert by commutation.The B0 chamber is pressure oil → B1 → B2 → B3 → three a rod chamber B4, and three piston rollbacks are opened under the effect of pressure oil; Oil return D4 → the D3 of three rodless cavities → D2 → A1 → A0 oil return.
Piston-type hydraulic cylinder (F1, F2, F3) the high pressure clamping asphalt channel that floats: when system pressure (is annotated: under the promotion of pressure oil and spring 19.2 greater than 8 kilograms of time → A1 → overturning chuck 53.1 oilhole F5 → valve bodies, 28.2 oilhole F6 → F7 → F8 → F9 → F10 and F17 → 11.2 chambeies and 16.2 chambeies, steel ball 20.2 withstands check valve valve body 21.2, makes the oil circuit of F16 and F7 obstructed.The pressure oil in) → F11 chamber promotes spool 22.2 and spring 23.2 and opens the oil groove F19 that annular oil groove F15 → overturning chuck 53.1 oilholes 18.2 → cylinder body 7.2 that valve port → F12 chamber → valve body oilhole F13 → overturning chuck 53.1 oilhole F14 → annular oil circuit gland III 10.2 and overturning chuck 53.1 assemblings form and overturning chuck 53.1 form → the enter rodless cavity F20 of three hydraulic cylinders (F1, F2, F3), three pistons move to the chuck hub direction under the effect of hydraulic oil, and holding workpiece.The oil return of the rod chamber B9 of three hydraulic cylinders (F1, F2, F3): the annular chamber B0 that C9 → oil circuit positioning sleeve 8.1 and overturning chuck 53.1 form among the oilhole Fig. 9 in the circular oil groove B2 that annular chamber B7 → overturning chuck 53.1 oilhole B6 that B9 fluid → cylinder body 7.2 oilhole B8 → cylinder bodies 7.2 and overturning chuck 53.1 form → annular oil circuit gland II 3.2 and overturning chuck 53.1 form → overturning chuck 53.1: A8 oil return among Fig. 9.
When three hydraulic cylinders (F1, F2, F3) when piston is opened, two oil circuit pressure oils and oil return are by the commutation conversion: the B0 chamber is that pressure oil → B2 → B6 → B7 → B8 → three a rod chamber B9 → three piston rollbacks are opened under the effect of pressure oil; Oil return F20 → the F19 of three rodless cavities → F18 → F15 → F14 → F13 → F12 chamber → F8 → F7 chamber → under the standby effect of pressing of oil return, promote steel ball 20.2 Compress Springs 19.2 and form passage → F16 → F17 → F5 → A1 → A0 oil return away from check valve body 21.2.
Accumulator is as the critical elements of hydraulic system, is in order to satisfy executive component when the pressure loss, the pressure compensation that carries out.The piston clamping is the important process process that satisfies machining accuracy in this statement chuck, in order to compensate the pressure loss of clamping course pressure oil, has designed two accumulators (31.2,35.2) in the symmetric position of chuck.The architectural characteristic of this accumulator is: the guiding end cap 13.2 overturning chuck 53.1 interior loop mapping holes of packing into, the annular gland 15.2 overturning chuck 53.1 outer shroud locating holes of packing into, the thrust that the compression of mobile piston 38.2 by 8 groups of dish springs 17.2 produces is supported in the endoporus of annular gland 15.2 and guiding end cap 13.2.When 6 groups of pistons (T1, T2, T3, F1, F2, F3) clamping box cupling, the A1 passage is pressure oil, and A1 pressure oil → overturning chuck 53.1 oilhole X22 → X24 → annular gland 15.2 oilhole X23 → annular glands 15.2 assemble the cavity 25.2 that forms with mobile piston 38.2.Under the effect of hydraulic oil, mobile piston 38.2 moves and the compact disc spring to chuck hub, and the storage of hydraulic oil begins, until the thrust that the pressure that hydraulic oil produces and the distortion of dish spring produce equates, mobile piston 38.2 stops mobile, and the X25 chamber has been full of the hydraulic oil of certain volume; When the fluid seepage appearred in D oil circuit and F oil circuit, the hydraulic oil in X25 chamber carried out pressure compensation by X passage and A channel to it, kept the stability of the chucking power of box cupling in process.
The structure of chuck lubricated 34.2 mainly contains the rotating contact of synchronous ring 4.2 overturning chucks 53.1,6 cylinder body (T1, T2, T3, F1, F2, F3) motion two parts of intraware, when 6 pistons become the process of opening from clamping, the B1 passage is pressure oil: the lubricated each time pressure oil effect of valve 36.2 of the annular seal space R7 of the lubricated valve 36.2 of assembling → warp in B1 oil → overturning chuck 53.1 oilhole R2 → overturning chucks 53.1, lubricated valve 36.2 produces among the annular seal groove R3 of assembling synchronous ring 4.2 in the oil circuit R4 → overturning chuck 53.1 of oil groove R5 → overturning chuck 53.1 of one or two oil dripping liquid → overturning chucks 53.1 → along with the continuous increase of fluid, be full of fluid among the annular seal groove R3, relative motion to synchronous ring 4.2 and overturning chuck 53.1 is lubricated → be full of fluid among the annular seal groove R3 after, because 6 hydraulic cylinder T, the piston movement position of F and synchronous ring 4 installed cannelure R3 and entered 6 hydraulic cylinder T by rectangular aperture 38.2 together with → fluid, the relative motion component R 6 of F, the integrality that this statement chuck is lubricated.
Comprise such as Fig. 9, Figure 10 and chuck turning device shown in Figure 11: the hydraulic control circuit of hydraulic rotating axis mechanism, chuck action element and gas circuit and switching mechanism;
The hydraulic rotating axis mechanism comprises: hydraulic swing rotating shaft 3.1 and rotating shaft supporter 51.1; Hydraulic swing rotating shaft 3.1 is positioned on the supporter 51.1 by bolted by rotating shaft supporter 51.1 front end locating holes; Overturning chuck 53.1 covers are as in the hydraulic swing rotating shaft 3.1, and overturning chuck 53.1 is provided with the oil circuit positioning sleeve 8.1 of fixing for hydraulic swing rotating shaft 3.1; The other end of hydraulic swing rotating shaft 3.1 is fitted in the oil circuit positioning sleeve 8.1 of overturning chuck 53.1, and by thrust bearing finish with overturning chuck 53.1 axially and radial location; Overturning chuck 53.1 is processed with axial location hole 25.1; Hydraulic control circuit and gas circuit are and oil path distributor and the oil pipe in the inner hole of spindle of main spindle box afterbody form the chuck pressure circuit, and gas circuit;
Hydraulic control circuit and gas circuit are and oil path distributor and the oil pipe in the inner hole of spindle of main spindle box afterbody form the chuck pressure circuit, and gas circuit;
Switching mechanism comprises: turning gear axle 11.1, cylinder thrust bearing 16.1 and bearing gland 15.1; Turning gear axle 11.1 is interference fits with overturning chuck 53.1 axis location holes 25.1, and is positioned overturning chuck 53.1 axis directions by briquetting 9.1 and fastening bolt 10.1, realizes being rigidly connected; The gear end top of turning gear axle 11.1, the inner ring of cylinder thrust bearing 16.1 is installed, and the outer ring of cylinder thrust bearing 16.1 is embedded in the locating hole 54.1 of bearing gland 15.1, bearing gland 15.1 is fitted into the locating hole I 55.1 of turning-over support body 51.1 together with bearing outer ring, bearing gland 15.1 cylindricals are on the axial direction to be fixed with bolt;
Comprise such as Fig. 9, Figure 10 and chuck turning device part shown in Figure 11: hydraulic control circuit A, the C of hydraulic rotating axis mechanism (3.1,6.1,7.1) chuck action element and gas circuit B, switching mechanism (11.1,28.1,32.1) chuck upset hydraulic circuit D, E, switching mechanism lubricant passage way F, chuck upturned position feedback mechanism.
Why upset rotating shaft 3.1 in the hydraulic rotating axis mechanism (3.1,6.1,7.1) is called the hydraulic swing rotating shaft, is to form the loop because overturning chuck 53.1 usefulness hydraulic oil pass through the oilhole passage of upset rotating shaft 3.1 inside.Upset rotating shaft 3.1 is by turning-over support body 51.1 front end locating holes 5.1, with bolt 4.1 fastening being positioned on the turning-over support body 51.1; The other end of upset rotating shaft 3.1 is fitted in the oil circuit positioning sleeve 8.1 of overturning chuck 53.1, and by thrust bearing 6.1 finish with overturning chuck 53.1 axially and radial location, the adjusting nut 7.1 of thrust bearing 6.1 outer rings is to realize thrust bearing 6.1 gap adjustment by screw thread rotation, realize simultaneously the adjustment of overturning chuck 53.1 centers and the alignment of shafts, guarantee the location of chuck in supporter and the upset of relative supporter.Lock with retaining mechanism 54.1 after adjusting the location.
Hydraulic control circuit (A, C) and gas circuit B form the chuck pressure circuit with the oil path distributor of main spindle box afterbody and the oil pipe in the inner hole of spindle, and gas circuit.(A1, B1, C1) three pass passages are arranged in parallel in the different aspects of adpting flange 2.3 simultaneously.
Hydraulic circuit is comprised of A channel and C-channel, finishes clamping and the opening action of chuck clamp piston.The path of A channel is: the oilhole A7 of the annular chamber A6 that the passage A5 in the passage A4 in the passage in the passage in the A1 in the adpting flange 2.3 → upset oil path block I 1.1 → connected pipes passage A2 → upset oil path block II 2.1 → connected pipes passage A3 → the enter upset rotating shaft 3.1 → upset rotating shaft 3.1 → enter upset rotating shaft 3.1 and oil circuit positioning sleeve 8.1 form → by oil circuit positioning sleeve 8.1 → the enter annular chamber A8 of oil circuit positioning sleeve 8.1 and overturning chuck 53.1 compositions.The path of C-channel is: the oilhole C7 of the annular chamber C6 that the channel C 5 in the channel C 4 in the passage in the passage in the C1 in the adpting flange 2.3 → upset oil path block I 1.1 → connected pipes channel C 2 → upset oil path block II 2.1 → connected pipes channel C 3 → the enter upset rotating shaft 3.1 → upset rotating shaft 3.1 → enter upset rotating shaft 3.1 and oil circuit positioning sleeve 8.1 form → by oil circuit positioning sleeve 8.1 → the enter annular chamber C8 of oil circuit positioning sleeve 8.1 and overturning chuck 53.1 compositions.Above two oil circuits have satisfied the hydraulic principle requirement of chuck executive component, and the design of O circle has been adopted in its junction sealing.
The compressed air channel design is identical with the hydraulic channel design: be comprised of B1 → B2 → B3 → B4 → B5 → B6 → B7 → B8, realized the conveying of compressed air to overturning chuck 53.1.
Switching mechanism is designed to the symmetric design of hydraulic rotating axis mechanism on 180 ° of axis, turning gear axle 11.1 is core component, not only realized another positioning support support point of overturning chuck 53.1 and turning-over support body 51.1, also by the gear on the turning gear axle 11.1 and hydraulic pressure tooth bar cooperate and overturn in two sides that 53.1180 ° of overturning chucks have been finished in motion.Its following structural features:
Turning gear axle 11.1 is interference fits with overturning chuck 53.1 axis location holes 25.1, is positioned overturning chuck 53.1 axis directions by briquetting 9.1 and fastening bolt 10.1, realizes being rigidly connected.The gear end top of turning gear axle 11.1, the inner ring of cylinder thrust bearing 16.1 is installed, the outer ring of cylinder thrust bearing 16.1 is embedded in the locating hole 54.1 of bearing gland 15.1, bearing gland 15.1 is fitted into the locating hole 55.1 of turning-over support body 51.1 together with bearing outer ring, bearing gland 15.1 cylindricals are on the axial direction to be fixed with bolt, adjusting pad is realized the adjustment of cylinder thrust bearing 16.1 gaps, realizes simultaneously the adjustment of overturning chuck 53.1 centers and the alignment of shafts.Guarantee the upset of the location of chuck in supporter and relative turning-over support body 51.1.
The rotary movement of overturning chuck 53.1 depends on the shaft end gear of turning gear axle 11.1, and the cooperation of a pair of hydraulic pressure tooth bar (28.1,32.1), motion and realize, its motion-promotion force is realized by the promotion of pressure oil in the hydraulic cylinder structure.Hydraulic pressure tooth bar (28.1,32.1) is the piston hydraulic tooth bar, the piston rod that is equivalent to hydraulic cylinder, the piston end of hydraulic pressure tooth bar (28.1,32.1) is packed in the hydraulic cylinder 26.1, rod chamber upper, annular cylinder cap (27.1,33.1) becomes the positioning link of whole hydraulic cylinder 26.1 and supporter locating hole (55.1,56.1), and ring-shaped cylinder cover (27.1,33.1) is realized the effect of buffer deceleration in the motion process of piston; The rodless cavity bottom is comprised of buffering locating ring (25.1,34.1) and cylinder cap 35.1, and buffering locating ring (25.1,34.1) has played the effect of cylinder cap location and hydraulic pressure tooth bar buffer deceleration.The hydraulic pressure kit is fastened on the turning-over support body 51.1 by 4 bolts 23.1, and black box (42.1,43.1) is the oil sealing assembling of hydraulic cylinder.The cylinder bar front end cylinder partial design of piston hydraulic tooth bar (28.1,32.1) is rack structure, column part embeds in the annular thin wall wear-resistant sleeve (29.1,30.1), annular thin wall wear-resistant sleeve (29.1,30.1) is positioned in two high-precision positioning holes (36.1,57.1) in the turning-over support body 51.1, the processing of the hole of degree of precision is in order to satisfy gear, the tooth bar quality of fit in motion process, two hydraulic pressure tooth bars 28.1 and 32.1 rigging position such as Fig. 9, Figure 10 and the assembling of Figure 11 form.Cover plate 14.1 usefulness 4 bolts are fixed, and the rack-and-pinion cavity has been played sealing function.
The switching process feature of the composition in the loop of hydraulic oil and overturning chuck 53.1: the loop of hydraulic oil is comprised of D passage and E passage, pressure oil and oil return are by the conversion of D, E passage, realized the reciprocating motion of hydraulic pressure tooth bar 28.1 and 32.1 in cylinder body 26.1, and in the engagement process of gear and tooth bar, finish the positive and negative 180 ° upset of overturning chuck 53.1.Be described in detail as follows:
Hydraulic control circuit D, E are that oil path distributor and the oil pipe in the inner hole of spindle with the main spindle box afterbody forms chuck eversion pressure loop jointly.D1, two pass passages of E1 are arranged in parallel in the different aspects of adpting flange 2.3 simultaneously.
The composition of D passage: the D1 → oil path block 58.1 in the adpting flange 2.3 and hydraulic cylinder 35.1 interface channel D2 → enter respectively in the hydraulic cylinder cylinder cap 35.1 passage D5 and the passage D3 in the cylinder body 26.1, the rodless cavity D7 of 35.1 passage D6 in passage D5 → cylinder cap of 35.1 → right side hydraulic pressure tooth bar hydraulic cylinder in cylinder cap; Passage D4 → ring-shaped cylinder cover 27.1 in passage D3 in the cylinder body 26.1 → turning-over support body 51.1 cooperates the annular that forms that the rod chamber D10 of groove D8 → by ring-shaped cylinder cover 27.1 through holes D9 → left side hydraulic pressure tooth bar hydraulic cylinder is arranged with turning-over support body 51.1 locating holes.Being connected to form of D passage, the rod chamber D10 hydraulic oil of the rodless cavity D7 of right side hydraulic pressure tooth bar hydraulic cylinder and left side hydraulic pressure tooth bar hydraulic cylinder come drainback passage.
The composition of E passage: the E1 → oil path block 58.1 → oil path block 58.1 in the adpting flange 2.3 and hydraulic cylinder 35.1 interface channel E2 → enter respectively in the hydraulic cylinder cylinder cap 35.1 passage E3 and the passage E4 in the cylinder body 26.1, the rodless cavity E7 of 35.1 passage E6 in passage E3 → cylinder cap of 35.1 → left side hydraulic pressure tooth bar hydraulic cylinder in cylinder cap; Passage E5 → ring-shaped cylinder cover 33.1 in passage E4 in the cylinder body 26.1 → turning-over support body 51.1 cooperates the annular that forms that the rod chamber E10 of groove E8 → by ring-shaped cylinder cover 33.1 through holes E9 → right side hydraulic pressure tooth bar hydraulic cylinder is arranged with turning-over support body 51.1 locating holes.Being connected to form of described E passage, the rod chamber E10 hydraulic oil of the rodless cavity E7 of left side hydraulic pressure tooth bar hydraulic cylinder and right side hydraulic pressure tooth bar hydraulic cylinder come drainback passage.
When the D passage was pressure oil, D7 chamber and D10 chamber be stuffing pressure oil constantly, promotes hydraulic pressure tooth bar 32.1 up, promote hydraulic pressure tooth bar 28.1 descending, E7 and E10 fluid in the engagement and motion process of rack-and-pinion, make chuck be rotated counterclockwise 180 ° by the oil return of E passage; When the E passage was pressure oil, E7 chamber and E10 chamber be stuffing pressure oil constantly, promotes hydraulic pressure tooth bar 28.1 up, promote hydraulic pressure tooth bar 32.1 descending, D7 and D10 fluid in the engagement and motion process of rack-and-pinion, make chuck turn clockwise 180 ° by the oil return of D passage.
Coarse positioning in the chuck flip-flop movement process mainly comprises location hook plate 46.1, buffering block 44.1, dish spring 48.1.Location hook plate 46.1 cooperates with bolted on overturning chuck 53.1 by locating hole, and buffering block 44.1 and dish spring 48.1 are assemblied in the supporter locating hole, and fastening with bolt 47.1, wherein the quantity of dish spring 48.1 is 7 pairs.In overturning chuck 53.1 switching processes, location hook plate 46.1 touches buffering block 44.1, because the effect of hydraulic-driven power, location hook plate 46.1 compressing buffering blocks 44.1, make the compression of dish spring, when the elastic force of hydraulic-driven power and the compressed generation of dish spring equated, the chuck coarse positioning finished.This is assemblied on turning-over support body 51.1 and the overturning chuck 53.1 and has two covers, satisfies the double-edged upset demand of chuck.
Turning gear axle 11.1 tooth bars (28.1,32.1) and the lubricated of cylinder thrust bearing 16.1 be as power take hydraulic oil, and by the 52.1 regular repairings of novel lubricating valve, realize the purpose of continuous lubrication, ingenious each lubricated part passage that used in design particularly, made it to have had the uniqueness of design: when oil groove A8 is pressure oil → enter through hole F2 in the overturning chuck 53.1 → the enter effect of lubricated valve 52.1 → each pressure oil, there are one or two oil drippings to enter in the cannelure 59.1 of F3 through hole → enter overturning chuck 53.1 → via through holes F4 and F5 → arrival rack-and-pinion (11.1,28.1,32.1) engagement, in the cavity F6 of cylinder thrust bearing 16.1 rotations, finished the supply of lubricating oil.
Chuck upturned position feedback mechanism be for confirm whether chuck overturns, the situation such as put in place of whether overturning, guarantee correct home in the process.The signal that comprises A, B face position signalling and the positive and negative 90 ° of rotary courses of a cover of 180 ° of upsets of two covers.Positioning sleeve (24.1,37.1) in principle and process: A, the B face position signalling is assemblied on the center line of hydraulic pressure tooth bar (28.1,32.1), and be positioned by shaft retaining ring (61.1,63.1) in two locating holes of cylinder cap 35.1, upset guide rod (39.1,41.1) and spring (22.1,38.1) are by spigot nut (60.1,64.1), the positioning sleeve (24.1,37.1) of packing into, and guarantee that upset guide rod (39.1,41.1) is at the outside play of positioning sleeve (24.1,37.1).Cam cover 17.1 in positive and negative 90 ° of rotating signals is installed in the gear end of gear shaft 11.1, relies on 16.1 assemblings of cylinder thrust bearing to realize axial location, and cylindrical positioning pins 65.1 guarantees circumferential registration.Spring 19.1 is under the compressing of spigot nut 66.1, promote guide rod group 18.1 and remain the outer ring of withstanding cam cover 17.1, spring 19.1, spigot nut 66.1 and guide rod group 18.1 parts are installed on cylinder cap 35.1 centres, the remainder of guide rod group 18.1 is packed in the hole in cylinder body 26.1 and the turning-over support body 51.1, and three guide rods in the guide rod group 18.1 are on cylindrical center's line.When overturning chuck 53.1 with moving cam cover 17.1 in positive and negative 180 ° rotary course, by the conversion of low spot → high point → low spot, add the effect of spring force, impel guide rod group 18.1 away from → approach → away from induction of signal switch 20.1, realize position judgment.Induction of signal switch 20.1 is installed on the support 62.1, and the holding position is adjustable.
Locking chuck device shown in Figure 12 and 13 comprises: locking positioning hydraulic cylinder, locking chuck seat, hydraulic circuit and position feedback mechanism form.
The locking positioning hydraulic cylinder is hydraulic cylinder with double piston rods, and is comprised of cylinder body 14, bidirectional piston 15, cylinder cap 11 and black box 29 hydraulic cylinder.Cylinder body 14 is positioned by alignment pin to fix with bolt among the axis location hole 30 of supporter 1.3, becomes bidirectional piston 15 and produces the fixed body of relative displacement.Hydraulic cylinder cylinder cap 11 is by the location of alignment pin 12, and at cylinder body 14 end faces, the precise positioning of alignment pin is the installation of satisfying fluid pressure line and position feedback mechanism in cylinder body 14 and the cylinder cap 11 with bolted.Dust cap 9 usefulness bolts 13 are fastened on the cylinder body outermost end, have played the protective effect to hydraulic package.The locking positioning hydraulic cylinder is symmetric design, is positioned on 1.3180 ° of planes of supporter;
The locking chuck seat is comprised of location cylinder cap 22 and locking bed 16, the inner circle of the cylindrical of locking bed 16 and location cylinder cap 22, realize the integraty assembling by stronger interference fit, its assembly has been realized 180 ° the axis location of locking hole 32 on the centralized positioning on chuck 31 thickness and chuck 31 cylindricals by the location of cylindrical hole 33.
Hydraulic circuit is comprised of two oil circuits: the oilhole 20 in the oilhole 25 → plug-in type oil pipe 24 → cylinder body 14 in the oil circuit U → oil pipe line 26 → connection fixing block 5 in oil circuit one, the adpting flange 2 → enter hydraulic cylinder cavity of resorption 27; Oilhole 19 in oilhole 25 → plug-in type oil pipe 24 → cylinder body 14 in oil circuit L → oil pipe line 26 → connection fixing block 5 in oil circuit two, the adpting flange 2.3 → enter hydraulic cylinder epicoele 23.When oil circuit one was pressure oil, oil circuit two was the low pressure oil return, and this moment, bidirectional piston 15 to moving away from supporter 1.3 directions, threw off the locking contact under the promotion of pressure oil fully; When oil circuit one is the low pressure oil return, when oil circuit two was pressure oil, this moment, bidirectional piston 15 moved to supporter 1.3 directions under the promotion of pressure oil, and the locking contact becomes two of chuck precise positioning and is rigidly connected.
Position feedback mechanism is comprised of promotion disk 10, carriage release lever 7, spring 6, sensor 3, sensor stand 4.Promote disk 10 usefulness screw fastenings in the non-locking end of bidirectional piston 15, and thereupon mobile.Other part is located by supporter.When bidirectional piston 15 moved to the locking direction, the inclined-plane 8 that promotes disk 10 constantly pushed carriage release lever 7 and moves backward, and spring is compressed, carriage release lever 7 end proximity transducers 3, and sensor 3 sends position signalling.Otherwise when bidirectional piston 15 moved to the locking reverse direction, the inclined-plane 8 of disk 10 was constantly away from carriage release lever 7, and carriage release lever 7 is under the effect of spring force, constantly away from sensor 3, to satisfy the requirement of electrical principle.
Supporter 1.3 is a foundry goods that machining accuracy is very high, between former and later two end faces, is processed with for 4 support sections that oil circuit assembling and upset assembling are installed, and 4 casting open spaces that are used for chip removal.
Adopt the utility model of technique scheme by the mode of all-hydraulic control, the actions such as the clamping of realization oild chuck, upset, and then oild chuck has very high operation precision and with high bearing capacity, process high standard parts and applicable.
And possess following obvious advantage:
1, overturning chuck is annulated column type structure, has designed 6 step through holes in 360 ° of tumble card disk bodies, has realized the assembling of 6 plunger-type cylinders (T, F), makes oild chuck possess the function of clamping column workpiece (box cupling) at annular solid.
2, annular oil circuit gland II, annular oil circuit gland III) hydraulic channel (A, B) that forms of design and the assembling of overturning chuck, and the various oilhole passages (B, D, F) of overturning chuck indoor design, the piston that has jointly formed 6 hydraulic cylinders (T, F) clamps and the piston opening action, the control commutation hydraulic circuit of formation.
3, synchronous mechanism is according under low pressure (less than the 8 kilograms) state, machinery is without the mentality of designing of distortion, dexterously in conjunction with individual event sequence valve hydraulic principle, realized that 3 pistons of low-voltage driving (T1, T2, T3) move to chuck hub, synchronous mechanism is implemented the clamping process that machinery control constant speed is synchronized with the movement, and chuck has been finished the function of three-jaw low pressure centering holding workpiece.Follow pressure to surpass 8 kilograms, the common high pressure clamping box cupling of 6 pistons (T, F).
4, according to accumulator requirement in the hydraulic pressure design principle, simultaneously in order to satisfy hydraulic cylinder in the overturning chuck (T, F) in clamping process, because the pressure loss that a variety of causes produces, ad hocly counted two piston accumulators, the pressure compensation of clamp position is provided.
5, in Lubrication Design, courageously used the application of lubricated valve in hydraulic system; In conjunction with the global design of chuck, utilized dexterously connectivity structure, realized the lubricated movingly of chuck moving component.
6, design is processed with hydraulic pressure oil groove and oilhole passage in the upset rotating shaft, and the A that forms in the assembling process, C oil circuit, has satisfied oild chuck in rotary course, to the oil circuit control of hydraulic actuator.
7, the upset rotating shaft is as the strong point of overturning chuck on supporter, the turning gear axle is as overturning chuck another strong point on supporter, in the bearing assemble process, realized overturning chuck on 0 ° of-180 ° of axis of supporter the location adjustment and curl up the technical conditions of 0 ° of-180 ° of axis rotation.
8, design by rack piston formula cylinder design and D, E oil circuit in the switching mechanism, the hydraulic power of the two-way relative motion of tooth bar is provided.
9, wear-resistant sleeve is in the location of supporter in the switching mechanism, and for the motion guide of a pair of hydraulic pressure tooth bar provides space reference, the accuracy of mesh for rack-and-pinion provides technique guarantee simultaneously.
10, turning gear axle front end pinion and hydraulic pressure tooth bar be in engagement process, by the reciprocal relative motion of hydraulic pressure tooth bar, realized oild chuck positive and negative 180 ° two sides upset in supporter.And by position signalling control, to guarantee the security of operation of equipment.
11, the cylinder body in the hydraulic cylinder sub-assembly, bidirectional piston, cylinder cap and black box design by oil circuit control, have realized the application of hydraulic cylinder principle in oild chuck locking positioning process.
12, bidirectional piston is the stretching out of the positive and negative 90 ° of directions of supporter upset axis in the hydraulic cylinder, and the post, the compression in hole of locking bed is combined in the excessive connector of chuck, realized chuck two other positioning support support point on the upset plane.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art are not within breaking away from the technical solutions of the utility model scope, appeal the equivalent embodiment that the technology contents that discloses is made a little change or is modified to equivalent variations when utilizing, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a hydraulic overturn chuck assembly is characterized in that: comprise support connecting piece, oild chuck, chuck turning device and locking chuck device;
Described support connecting piece comprises: supporter (1.3) and adpting flange (2.3), and by being machined in respectively short cylindrical locating hole (27.3) orientation assemble of supporter (1.3) bottom and adpting flange (2.3) upper surface, and it is fastening to pass through bolt circle;
Described adpting flange (2.3) is processed with many independently oilhole passages, and described oilhole passage and each bar oil line pipe of supporter (1.3) connect one to one, and have formed the hydraulic circuit of each executive component in overturning chuck, locking device, the turning device;
Described support connecting piece lower end is fixed with oil path block (29.3), and the oil circuit of described oil path block (29.3) by oil path distributor on oil pipe and the lathe is connected;
Described supporter (1.3) is provided with four chip removal cavitys that distribute with supporter (1.3) Central Symmetry; Described supporter (1.3) outer wall is processed with the convex edge, and the outer convex edge of described supporter (1.3) sidewall is fixed with 4 annular glands (12.3); Described annular gland (12.3) lower end is fixed with annular oil circuit gland I (3.3), and namely annular gland (12.3), annular oil circuit gland I (3.3) form sealed cavity with supporter (1.3) outer wall;
Described supporter (1.3) upper axial end is processed with for 4 locating holes that oild chuck is installed, and described 4 its positions of locating hole are 4 etc. to divide supporter (1.3) to distribute; Described chuck turning device is fixed in a pair of symmetrical locating hole; Described locking chuck device is fixed in another in the symmetrical locating hole;
Described oild chuck is annulus, mesothyrid column structure, and frame for movement comprises: the chuck lubrication assembly (34.2) that overturning chuck (53.1), 6 plunger-type cylinders that are fixed on annular oil circuit gland II (3.2) on the overturning chuck (53.1), annular oil circuit gland III (10.2), synchronous mechanism, circle distribution, hydraulic circuit and valve assembling are joined and cooperated with 6 plunger-type cylinders; Be provided with in the described overturning chuck (53.1) for the groove of placing 6 plunger-type cylinders; Described synchronous mechanism is arranged at the plunger hydraulic cylinder interior;
Described annular oil circuit gland II (3.2) and annular oil circuit gland III (10.2) are separately fixed on overturning chuck (53.1) both ends of the surface;
Described overturning chuck (53.1) is processed with horizontal axis hole; Described chuck turning device is installed in the axis hole of overturning chuck (53.1) by hydraulic swing rotating shaft (3.1), and described chuck turning device and overturning chuck (53.1) interlock; Described locking chuck mechanism is arranged at the axial side of overturning chuck (53.1) axis hole.
2. a kind of hydraulic overturn chuck assembly according to claim 1, it is characterized in that: described chuck turning device comprises: the hydraulic control circuit of hydraulic rotating axis mechanism, chuck action element and gas circuit and switching mechanism;
Described hydraulic rotating axis mechanism comprises: hydraulic swing rotating shaft (3.1) and rotating shaft supporter (51.1); Described hydraulic swing rotating shaft (3.1) is positioned on the supporter (51.1) by bolted by rotating shaft supporter (51.1) front end locating hole; Described overturning chuck (53.1) cover is as in the hydraulic swing rotating shaft (3.1), and overturning chuck (53.1) is provided with for the fixing oil circuit positioning sleeve (8.1) of hydraulic swing rotating shaft (3.1); The other end of described hydraulic swing rotating shaft (3.1) is fitted in the oil circuit positioning sleeve (8.1) of overturning chuck (53.1), and by thrust bearing finish with overturning chuck (53.1) axially and radial location; Described overturning chuck (53.1) is processed with axial location hole (25.1); Hydraulic control circuit and gas circuit are and oil path distributor and the oil pipe in the inner hole of spindle of main spindle box afterbody form the chuck pressure circuit, and gas circuit;
Described switching mechanism comprises: turning gear axle (11.1), cylinder thrust bearing (16.1) and bearing gland (15.1);
Described turning gear axle (11.1) is interference fits with overturning chuck (53.1) axis location hole (25.1), and is positioned overturning chuck (53.1) axis direction by briquetting (9.1) and fastening bolt, realizes being rigidly connected; The gear end top of described turning gear axle (11.1), the inner ring of cylinder thrust bearing (16.1) is installed, and the outer ring of cylinder thrust bearing (16.1) is embedded in the locating hole (54.1) of bearing gland (15.1), bearing gland (15.1) is fitted into the locating hole I (55.1) of supporter (51.1) together with bearing outer ring, bearing gland (15.1) cylindrical is on the axial direction to be fixed with bolt.
3. a kind of hydraulic overturn chuck assembly according to claim 1, it is characterized in that: described locking chuck device comprises: locking positioning hydraulic cylinder, locking chuck seat, hydraulic circuit and position feedback mechanism form;
Described locking positioning hydraulic cylinder is hydraulic cylinder with double piston rods, and is comprised of cylinder body (14), bidirectional piston (15), cylinder cap (11) and black box (29) hydraulic cylinder; Cylinder body (14) is positioned by alignment pin to fix with bolt among the axis location hole (30) of supporter (1.3), consists of the fixed body that bidirectional piston (15) produces relative displacement; Hydraulic cylinder cylinder cap (11) is by the location of alignment pin (12), and at cylinder body (14) end face, the precise positioning of alignment pin is the installation of satisfying fluid pressure line and position feedback mechanism in cylinder body (14) and the cylinder cap (11) with bolted; Dust cap (9) is fastened on cylinder body (14) outermost end with bolt (13); Described locking positioning hydraulic cylinder is symmetric design, is positioned on (1.3) 180 ° of planes of supporter;
Described locking chuck seat is comprised of location cylinder cap (22) and locking bed (16), the inner circle of the cylindrical of locking bed (16) and location cylinder cap (22), pass through interference fit, its assembly is by the location of cylindrical hole (33), i.e. 180 ° the axis location of locking hole (32) on the centralized positioning on chuck (31) thickness and chuck (31) cylindrical.
4. a kind of hydraulic overturn chuck assembly according to claim 1, it is characterized in that: described supporter (1.3) is a foundry goods that machining accuracy is very high, between former and later two end faces, be processed with for 4 support sections that oil circuit assembling and upset assembling are installed, and 4 casting open spaces that are used for chip removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229139 CN203245393U (en) | 2013-04-28 | 2013-04-28 | Hydraulic chuck overturning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229139 CN203245393U (en) | 2013-04-28 | 2013-04-28 | Hydraulic chuck overturning device |
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|---|---|
| CN203245393U true CN203245393U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320229139 Expired - Fee Related CN203245393U (en) | 2013-04-28 | 2013-04-28 | Hydraulic chuck overturning device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014830A (en) * | 2014-06-20 | 2014-09-03 | 山东爱乐驰机器人科技有限公司 | Automatic turning pipe clamp chuck device |
| CN105414582A (en) * | 2015-12-14 | 2016-03-23 | 无锡市永亿精密铸造有限公司 | Clamp for precision casting |
| CN109926869A (en) * | 2019-04-03 | 2019-06-25 | 浙江京速机床附件有限公司 | A kind of non-equal part hydraulic and indexing chuck |
| CN112222441A (en) * | 2020-09-21 | 2021-01-15 | 宁波迈途机械科技有限公司 | Large-specification indexing chuck |
| CN113732335A (en) * | 2021-09-14 | 2021-12-03 | 重庆翰源达机械制造有限公司 | Engine end cover machining clamping device |
-
2013
- 2013-04-28 CN CN 201320229139 patent/CN203245393U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014830A (en) * | 2014-06-20 | 2014-09-03 | 山东爱乐驰机器人科技有限公司 | Automatic turning pipe clamp chuck device |
| CN105414582A (en) * | 2015-12-14 | 2016-03-23 | 无锡市永亿精密铸造有限公司 | Clamp for precision casting |
| CN109926869A (en) * | 2019-04-03 | 2019-06-25 | 浙江京速机床附件有限公司 | A kind of non-equal part hydraulic and indexing chuck |
| CN109926869B (en) * | 2019-04-03 | 2020-06-02 | 浙江京速机床附件有限公司 | Non-equal division hydraulic indexing chuck |
| CN112222441A (en) * | 2020-09-21 | 2021-01-15 | 宁波迈途机械科技有限公司 | Large-specification indexing chuck |
| CN113732335A (en) * | 2021-09-14 | 2021-12-03 | 重庆翰源达机械制造有限公司 | Engine end cover machining clamping device |
| CN113732335B (en) * | 2021-09-14 | 2022-08-02 | 重庆翰源达机械制造有限公司 | Engine end cover machining clamping device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20190428 |