CN102773565B - Numerical control formed grinding wheel gear grinding machine - Google Patents
Numerical control formed grinding wheel gear grinding machine Download PDFInfo
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- CN102773565B CN102773565B CN201210274061.8A CN201210274061A CN102773565B CN 102773565 B CN102773565 B CN 102773565B CN 201210274061 A CN201210274061 A CN 201210274061A CN 102773565 B CN102773565 B CN 102773565B
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Abstract
The invention discloses a kind of numerical control formed grinding wheel gear grinding machine, comprise support, head tree, workpiece rotating part, grinding attachment and trimming device; Described trimming device comprises finishing base, finishing slide, finishing rotating disk and freeing wheel; Described finishing base is fixedly assemblied in head tree top, and finishing base is provided with Y-direction finishing guide rail, and described finishing slide sliding fit is assemblied on Y-direction finishing guide rail; Described freeing wheel is installed on finishing rotating disk, and described freeing wheel can be along its central axis rotation; Described finishing rotating disk is packed on described finishing slide rotationally. These gear grinding machines trimming device is independently arranged on head tree top, has alleviated the carrying of grinding rotating disk, has also reduced size, has reduced driving (motor) power of grinding rotating disk and driving (motor) power of Z axis; Dressing process expends time in few, and production efficiency is high, and has reduced due to grinding rotating disk reciprocating rotary then the error of bringing.
Description
Technical field
The present invention relates to a kind of gear grinding machines, especially relate to a kind of numerical control formed grinding wheel gear grinding machine.
Background technology
Gear grinding machines belong to gear finishing machine. The progress of Numeric Control Technology promoted grinding teeth of grinding wheel technology development andGenerally application. There are abroad some well-known producer and best brands of product, as German Klinglnberg (KLINGELNBERG) andHough is strangled (H FLER) etc. Qin Chuan machine tool plant is the famous producer of domestic production numerical control formed grinding wheel gear grinding machine.
Numerical control formed grinding wheel gear grinding machine is a kind of high class gear precise numerical control machine of grinding in batches that is applicable to. ItsProcess principle is forming process grinding, cuts shape be trimmed to the cross section corresponding with gear tooth slot by grinding wheel spindle cross section, and emery wheel is repaiiedWhole is the anti-involute profile of Involute gear profile of tooth, then gear is formed to grinding. The plunge grinding of gear withTradition grinding method is compared, and has: grinding efficiency is high, and profile accuracy is high, can the grinding number of teeth not limit (without Undercutting Phenomenon), latheThe advantage such as simple to operate, reliable, is specially adapted to profile of tooth to have that correction of the flank shape (shape) requires, teeth directional has cydariform requirement and toothRoot, tooth top transition portion have the Cylinder Gear disc sharpener of the high accuracy of particular/special requirement, hard flank of tooth straight-tooth, helical teeth, double helical tooth and helical toothCut processing.
The core technology of numerical control formed grinding wheel gear grinding machine key is the dressing technique of the anti-involute profile to emery wheel. Along withImproving constantly of the requirements such as performance, precision and the cost of relevant industries to gear, the anti-involute profile dressing technique of emery wheel alsoConstantly improving and promoting, developing into two large types so far:
The numerical control formed grinding wheel gear grinding machine of the first type is that the trimming device of emery wheel and emery wheel and main shaft thereof are all contained inOn the grinding rotating disk of lathe. When the helical gear that is β in grinding helical angle, the emery wheel on grinding rotating disk has been rotated β angle. But byIn in the process of grinding rotating disk beat β angle, the relative position of emery wheel and trimming device does not change, so its trimming device is sameGrinding rotating disk is the same anti-involute profile that can repair out emery wheel while thering is no beat β angle.
The advantage of this type of lathe is: grinding rotating disk is completing adjustment (turning over β angle) afterwards, at grinding one speciesThe overall process (comprising dressing process) of a collection of gear in grinding rotating disk no longer rotate, be conducive to precision and keep.
The shortcoming of this type of lathe is: trimming device itself includes emery wheel and supporting and drive system. GoldJust roller is servo-controlled by two numerical control axles, that is to say that it also has two servomotors, two cover ball-screws, two covers directlyLine guide rail and two cover grating scales. For the performance requirement that ensures that it is more and more higher, must ensure precision and the rigidity of trimming device. ThisJust make trimming device become very greatly, very heavy, even can be also more much bigger and heavy a lot of than emery wheel and grinding wheel spindle. To make thus to holdThe grinding rotating disk that carries trimming device and grinding wheel spindle has also increased size, has more increased the motor merit that drives its grinding turntable rotationRate. And then make the casing that grinding rotating disk is installed increase volume, increase weight, drive the reciprocating Z axis motor of casingAlso must increase power. This styles of dressing had both taken large space (large weight), had increased again energy consumption.
The representative producer of these the first type gear grinding machines is German Klinglnbergs, and the product of Qin Chuan machine tool plant of China also belongs toIn this type.
The numerical control formed grinding wheel gear grinding machine of the second type is that trimming device is separated with emery wheel (and main shaft), independentlyBe arranged on the cross slide way (realizing Y-axis control) at column top. Rely on Y-axis and the existing Z axis of emery wheel, poor benefit is repaired out and is wantedThe anti-involute profile of asking. Shown in accompanying drawing 1, the utility model patent that China Patent No. is 201120075022.6 discloses" a kind of numerical control formed grinding wheel gear grinding machine ". These gear grinding machines comprise support, on described support along directions X relatively move be provided with forThe head tree of abrasive grinding wheel is installed, and described pedestal is provided with the workpiece rotating part for workpiece is installed, on described head tree along Z sideUpwards be provided with head tree rail plate, on described head tree rail plate, slidable fit has bistrique portion and for being with rotary bistriquePortion is along the emery wheel rotating part of directions X deflection, and described bistrique portion comprises abrasive grinding wheel; Described numerical control formed grinding wheel gear grinding machine alsoComprise for the form truing device to abrasive grinding wheel finishing, at the bottom of described form truing device comprises trimming deviceSeat and freeing wheel, the axis of freeing wheel extends along Y-direction, is provided with along the finishing of Y-direction guiding on described trimming device baseDevice slide rail, described freeing wheel slidable fit is on trimming device slide rail, and described trimming device base is independently assemblied in bistriqueOn the head tree of portion top.
On such lathe, trimming device and emery wheel can share existing Z axis, make trimming device save oneIndividual numerical control axle, thus volume and weight reduced. The top of this external column has enough spaces to strengthen precision for trimming deviceUse with rigidity. Owing to there is no trimming device on grinding rotating disk, alleviate carrying, also reduce size, thereby reduced millCut driving (motor) power of rotating disk and driving (motor) power of Z axis.
The shortcoming of this type of trimming device comprises:
Realize β=0 ° (namely realizing emery wheel consistent with trimming device finishing angle), and then to carrying out crushing;And again grinding rotating disk is returned to original β angle after completing finishing, then continue to use emery wheel to carry out grinding. Finishing each timeAll need following actions: unclamp grinding rotating disk-rotation grinding rotating disk-locking grinding rotating disk-complete dressing process motion-SongOpen grinding rotating disk-grinding rotating disk return-locking grinding rotating disk-proceed grinding. That is to say that finishing all will increase by 6 each timeIndividual action: i.e. twice locking, unclamp for twice and twice rotation. Crushing number of times is quite frequently, in some cases slightlyWhen mill, two or three teeth of every mill will be repaired emery wheel No. one time. Thereby this must expend plenty of time increase production cost.
Moving all have error, and grinding turntable rotation is no exception. Under technical conditions now, even if adopt the most smartClose turntable shaft, is equipped with the most accurate encoder, and the turn error of grinding rotating disk also can reach ± and 2 ". Grinding rotating disk is forwarding to, there is such error when at β the angle, in the time rotating back into 0 °, also have such error. Generally the latter on profile of tooth impact compared with large andThe former is less on profile of tooth impact. In particular cases also can require to increase fine grinding surplus at some. These the second type gear grinding machinesRepresent that producer is that German Hough is strangled company.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of numerical control formed grinding wheel gear grinding machine; This gear grinding machines trimming device is de-From grinding rotating disk, be independently arranged on column top, eliminate the shortcoming of the first type gear grinding machines; Due on grinding rotating diskThere is no trimming device, alleviated carrying, reduced size yet, thereby reduced driving (motor) power and the Z of grinding rotating diskDriving (motor) power of axle; Grinding rotating disk of the present invention is the same with the first type gear grinding machines, the gear being only groundChange and just need to adjust grinding rotating disk when helical angle, in the time of the identical a collection of gear of grinding helical angle, grinding rotating disk is to maintain static, this has just eliminated the shortcoming of the second type gear grinding machines, and has retained the advantage of the first type gear grinding machines; It is dressing processIncrease less production efficiency thereby expend time in, reduced the error that grinding turntable rotation may bring simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of numerical control formed grinding wheel gear grinding machine, these gear grinding machines comprise support, head tree, workpiece rotating part, grinding attachment andTrimming device;
Described support is provided with X to rolling guide, and described head tree sliding fit is assemblied in X on rolling guide, described masterColumn can relatively move along directions X;
Described head tree is provided with Z-direction rolling guide, and described grinding attachment is fixed slide block sliding fit by grinding and is assemblied in ZOn rolling guide, described grinding attachment can relatively move along Z direction;
Described grinding attachment comprises grinding rotating disk, abrasive grinding wheel and abrasive grinding wheel fixed part; Described grinding rotating disk can turnBe packed on the fixing slide block of described grinding, described abrasive grinding wheel fixed part is fixed on grinding rotating disk, described grinding sand movinglyThe emery wheel central shaft of wheel is rotatably connected on described abrasive grinding wheel fixed part; Described abrasive grinding wheel can be along its emery wheel centerAxle rotation;
Described trimming device comprises finishing base, finishing slide, finishing rotating disk and freeing wheel; The fixing dress of described finishing baseFit over head tree top, finishing base is provided with Y-direction finishing guide rail, and described finishing slide sliding fit is assemblied in Y-direction finishing guide railOn; Described freeing wheel is installed on finishing rotating disk, and described freeing wheel can be along its central axis rotation, for repairing abrasive grinding wheel;Described finishing rotating disk is packed on described finishing slide rotationally; Described finishing slide can drive finishing rotating disk with finishingWheel moves in Y-direction.
Further, the pivot center direction of described finishing rotating disk and the central axes of grinding rotating disk, and described finishingRotating disk and grinding rotating disk synchronous rotary, repair rotating disk identical with corner equal and opposite in direction, the direction of grinding rotating disk synchronous rotary.
Further, be provided with a numerical control gyroaxis in described trimming device, described finishing rotating disk can be around this numerical control rotaryThe axis direction rotation of axle, the central axes of the axis of described numerical control rotary axle and grinding rotating disk, this numerical control rotary axle and millCut disk middle spindle synchronous rotary, corner equal and opposite in direction, the direction of diaxon are identical.
Further, the numerical control rotary axle that described finishing slide is provided with for driving the rotation of numerical control rotary axle drives dressPut; One end of described numerical control rotary axle is fixed on finishing rotating disk, and the other end and described numerical control rotary axial brake device are connected.
Further, described finishing slide is provided with numerical control rotary shaft through-hole; Described numerical control rotary axle one end is fixed on repaiiesOn turn over dish, the other end is connected through numerical control rotary shaft through-hole and described numerical control rotary axial brake device on finishing slide.
Further, described numerical control rotary axial brake device is servomotor; Described servomotor is installed in finishing slideUpper, the drive output of this servomotor directly connects with described numerical control rotary axle, and servomotor directly drives numerical control rotaryAxle rotation.
Further, described numerical control rotary axial brake device comprises servomotor, ball-screw, ball nut, slide block, rollsMotion block, precise linear guide and connecting rod; Described servomotor is packed on described finishing slide, and this servomotor output is fixedBall-screw, this ball-screw is exterior is furnished with ball nut, and this ball nut is fixing sheathed slide block outward; Described scroll box sliding fitBe assemblied on precise linear guide, described slide block is fixedly connected with scroll box; Described numerical control rotary axle sidewall is provided with crank; InstituteOne end of stating connecting rod is rotatably fixed on sliding shoe, and the other end is rotatably fixed on crank.
Further, described connecting rod is two, and being rotatably fixed on of described two connecting rod one end symmetries slided soonBoth sides, the other end symmetry of described two connecting rods is rotatably fixed on crank.
This patent adopts the advantage of double link design to be: eliminated the heeling moment between ball nut and connecting rod; CrankCan bear the active force of two connecting rods simultaneously, eliminate the heeling moment between connecting rod and crank. This mechanism (is that numerical control rotary axle drivesMoving device) force and moment harmful in motion process has been eliminated.
Further, described finishing slide is hollow frame structure, and described numerical control rotary axial brake device is arranged on finishingIn the hollow frame of slide, described precise linear guide is directly fixed on the inwall of hollow frame of finishing slide.
Further, described trimming device is provided with the leading screw sliding on Y-direction finishing guide rail for trimming device and isThis leading screw provides the servomotor of power.
Further, described support be provided with for drive head tree at X to leading screw mobile on rolling guide with for shouldLeading screw provides the servomotor of power.
Further, described head tree is provided with the head tree for driving grinding attachment to slide on Z-direction rolling guideLeading screw and provide the servomotor of power for this head tree leading screw.
Further, be also provided with secondary column on described support, this pair column is provided with the secondary column rolling of vertical direction and leadsRail, the cone centre positioning when slidable fit is useful on Gear Processing on this rolling guide, the central shaft of this cone centreLine is consistent with the central axis of workpiece rotating part.
Further, described secondary column is provided with for driving cone centre mobile pair on secondary column rolling guide to standPost leading screw and provide the servomotor of power for this pair column leading screw.
Further, described sliding fit assembling is rolling sliding fit.
Feature and the performance comparison table of numerical control formation emery wheel gear mechanism of the present invention and existing two types of gear grinding machines are as follows:
| Trimming device and grinding wheel spindle | The driving of grinding rotating diskPower | Z axis driving power | Grinding rotating disk was being repairedBehind Cheng Qian | The finishing used time | Dressing accuracy | |
| The first type gear grinding machines | All be contained on grinding rotating disk, rotate simultaneously; | Greatly | Greatly | Do not turn | Short | Unaffected |
| The second type gear grinding machines | The two separation; Trimming device is contained on columnSide, does not rotate; | Little | Little | Positive and negative rotation | Long | May be subject to shadowRing |
| Gear grinding machines of the present invention | The two separation; Trimming device is contained on columnSide, rotates respectively; | Little | Little | Do not turn | Short | Unaffected |
The present invention has following beneficial effect:
This numerical control formed grinding wheel gear grinding machine trimming device departs from grinding rotating disk, is independently arranged on column top, has alleviatedThe carrying of grinding rotating disk, has also reduced size, thereby has reduced the driving (motor) of driving (motor) power and the Z axis of grinding rotating diskPower; The present invention is in the time of grinding helical gear, and grinding rotating disk is only just adjusted grinding rotating disk in the time being changed helical angle by roll flute wheel,When the identical a collection of gear of grinding helical angle, grinding rotating disk is fixed, and dressing process expends time in less, increases and producesEfficiency has reduced the error that grinding turntable rotation may bring simultaneously.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail
Fig. 1 is the schematic perspective view of numerical control formed grinding wheel gear grinding machine of the present invention;
Fig. 2 is the front elevational schematic of numerical control formed grinding wheel gear grinding machine of the present invention;
Fig. 3 is grinding attachment of the present invention and trimming device perspective view in the time of finishing state;
Fig. 4 is that grinding attachment of the present invention and trimming device are faced structural representation in the time of non-finishing state;
Fig. 5 is that grinding attachment of the present invention and trimming device are faced structural representation in the time of finishing state;
Fig. 6 is trimming device structure for amplifying schematic diagram of the present invention;
Fig. 7 is the numerical control rotary axial brake device concrete structure schematic diagram of trimming device;
Fig. 8 is the running status process schematic diagram of Fig. 7.
Detailed description of the invention
In order further to illustrate the present invention, now further describe embodiments of the invention.
Shown in Fig. 1,2, a kind of numerical control formed grinding wheel gear grinding machine, it comprises support 100, head tree 200, workpiece revolutionPortion 300, grinding attachment 400 and trimming device 500;
Shown in Fig. 1,2,4, described support 100 comprises and is provided with X to rolling guide 101, and X of the present invention is to definition as attachedShown in Fig. 1, it is the major axis center position of support 100; Described head tree 200 sliding fits are assemblied in X on rolling guide 101, canRelatively move along directions X; Described workpiece rotating part 300 is fixed on support 100; Described support 100 is provided with for driving masterColumn 200 provides the servomotor 103 of power at X to the leading screw 102 relatively moving on rolling guide 101 with for this leading screw 102.
Shown in Fig. 1,2, in the present embodiment, described support 100 is provided with secondary column 600, this pair column 600 and main200 points, column is located at the two ends of support; Described secondary column 600 is provided with the secondary column rolling guide 601 of vertical direction, and this pair is verticalThe cone centre 602 positioning when slidable fit is useful on Gear Processing on post rolling guide 601, this cone centre 602Central axis is consistent with the central axis of workpiece rotating part 300, and described cone centre 602 can be by stable gear workpieces fixingOn workpiece rotating part 300; Described secondary column 600 is provided with for driving cone centre 602 at secondary column rolling guide 601Mobile secondary column leading screw 603 and provide the servomotor 604 of power for this pair column leading screw 603.
Shown in Fig. 1,2,3,4,5, described head tree 200 is provided with Z-direction rolling guide 201, described grinding attachment 400Fix slide block 401 sliding fits by grinding and be assemblied on Z-direction rolling guide 201, the fixing slide block 401 of grinding can be relative along Z directionMobile; Described grinding attachment 400 comprises grinding rotating disk 402, abrasive grinding wheel 403 and abrasive grinding wheel fixed part 404; Described grindingRotating disk 402 is packed on the fixing slide block 401 of described grinding rotationally, and described abrasive grinding wheel fixed part 404 is fixed on grindingOn rotating disk 402, the emery wheel central shaft of described abrasive grinding wheel 403 is rotatably connected on described abrasive grinding wheel fixed part 404; InstituteThe abrasive grinding wheel 403 of stating can be along its emery wheel central shaft rotation, and the power of its rotation is numerical control torque motor of the prior art (figureIn not shown); This abrasive grinding wheel 403 can be along emery wheel center axial-rotation for grinding worm workpiece, described abrasive grinding wheel 403Rotation provide power resources by servomotor 405; Described head tree 200 is provided with for driving grinding attachment 400 to roll in Z-directionThe head tree leading screw 202 sliding on moving guide rail 201 and provide the servomotor 203 of power for this head tree leading screw 202.
Shown in Fig. 1,2,3,4,5,6, described trimming device 500 comprises finishing base 501, finishing slide 502, finishingRotating disk 503 and freeing wheel 504; Described freeing wheel 504 is fixed on finishing rotating disk 503, and described finishing rotating disk 503 is rotatably solidDingan County is contained on finishing slide 502, and described finishing base 501 surfaces are provided with Y-direction finishing guide rail 506, and described finishing slide 502 is slidingCoordinate and be assemblied on Y-direction finishing guide rail 506, therefore repair slide 502 and can move in Y-direction with finishing rotating disk 503 and freeing wheel 504Moving; Can rotating along its central axis of described freeing wheel 504, for trimming wheel; Described finishing base 501 is fixed on head tree200 tops; That is to say, trimming device 500 is separated from grinding rotating disk 402, is independently arranged on head tree 200 tops.
Shown in Fig. 2,6, in described trimming device 500, be also provided with a numerical control gyroaxis 505, it and grinding rotating disk402 central axes, and rotate by outside numerical control system synchronization with grinding rotating disk 402 central shafts: the corner of diaxon is largeLittlely equate, direction is identical; Realize trimming device 500 winding number control gyroaxises 505 and with grinding rotating disk 402 central shaft synchronous rotariesCan realize by prior art, in order to ensure better accuracy, can adopt following further improved embodiment.
Further improved embodiment, shown in Fig. 1,2,6,7,8, described finishing rotating disk 503 is rotatably fixed onOn finishing slide 502, this finishing slide 502 is provided with numerical control rotary shaft through-hole (not expressing in figure); Described numerical control rotary axle505 one end are fixed on finishing rotating disk 503, and the other end, through the numerical control rotary shaft through-hole on finishing slide 502, turns finishingDish 503 can rotate by winding number control gyroaxis 505; Described trimming device 500 also comprises numerical control rotary axial brake device 700, this numerical controlGyroaxis drive unit 700 comprises servomotor 701, ball-screw 702, ball nut 703, slide block 704, scroll box 705, essenceClose line slideway 706 and connecting rod 707; Described servomotor 701 is packed on described finishing slide 502, described servomotor 701Output is fixed ball-screw 702, and this ball-screw 702 is exterior is furnished with ball nut 703, thus the rotation of servomotor 701Output is changed to the output of the rectilinear movement along ball-screw 702 of ball nut 703 by the rotation of ball-screw 702, described inThe outer fixing sheathed slide block 704 of ball nut 703, servomotor 701 drives ball-screw 702 just can control accurately slide block 704Displacement, and ensure its displacement error < 0.01 millimeter; Described scroll box 705 sliding fits are assemblied on precise linear guide 706,Described slide block 704 is fixedly connected with scroll box 705, with the linearity that ensures that slide block 704 moves, moves at total travel top shoe 704Moving linearity error < 0.01 millimeter; Described connecting rod 707 is two, one end symmetry of described connecting rod 707 rotatably fixingIn fast 705 both sides of sliding, fixed form can be established bearing pin in the both sides of sliding shoe 705, establishes pin-and-hole on connecting rod, is certainly slidingPin-and-hole is established in the both sides of piece 705, establishes bearing pin also feasible on connecting rod; Described numerical control rotary axle 505 sidewalls are provided with crank 507, described inRotatably being fixed on crank 507 of the other end symmetry of two connecting rods 707; In theory, slider-crank mechanism belongs to flatFace power system. But in fact it can not realize in a plane, and the power transmission shaft of mechanism all must have certain length, withJust the power on a part is passed to another part, and these two parts can not be in a plane, so justProduced additional moment, it does harm rather than good the performance of mechanism, and this patent adopts double link 707 to design: in the both sides of slide block 704Respectively there is a bearing pin, be connected with connecting rod 707 pin-and-holes respectively, eliminated the heeling moment between ball nut 703 and connecting rod 707; ?Simultaneously the both sides of crank 507 are also symmetrical is provided with two bearing pins for this, make crank 507 can bear the effect of two connecting rods 707 simultaneouslyPower, has eliminated the heeling moment between connecting rod 707 and crank 507. As long as can ensure the uniformity of two connecting rods 707, have in mechanismThe force and moment of evil will be eliminated; Described finishing slide 502 is hollow frame structure, described numerical control rotary axial brake device 700All be arranged in the hollow frame of finishing slide 502, wherein said precise linear guide 706 is directly fixed on finishing slide 502On the inwall of hollow frame; Described trimming device base 501 is provided with for driving finishing slide 502, finishing rotating disk 503, repairingWholely take turns 504 leading screws 508 that slide and provide the servomotor 509 of power for this leading screw 508 on Y-direction finishing guide rail 506.
In the present embodiment for driving the operation principle of numerical control rotary axial brake device of trimming device rotation as follows:
When servomotor 701 is received after rotating signal, drive ball-screw 702 to rotate, the ball-screw 702 of rotation drivesBall nut 703 does rectilinear motion along ball-screw 702, and ball nut 703 is with movable slider 704, and slide block 704 drives and rolls soon705 accurately move on precise linear guide 706; Rotation is fixed on connecting rod 707 on slide block 704 and follows slide block 704 and move togetherMoving, throw crank 507, crank 507 drives numerical control rotary axle 505 to rotate.
As further improved embodiment: numerical control rotary axial brake device 700 can be directly for being fixedly installed on finishingServomotor in slide 502 hollow frames; The driving of this servomotor (rotating) output directly with described numerical control rotaryAxle 505 connects, thereby drives finishing rotating disk 503 to rotate.
Operation principle of the present invention is as follows:
In the time using device of the present invention at straight (tiltedly) gear of grinding, gear workpieces is placed on workpiece rotating part 300,Make gear workpieces and workpiece rotating part 300 concentrics, can drive by servomotor 604 and secondary column leading screw 603 if desiredThe center that moving cone centre 602 withstands gear workpieces, prevents that gear workpieces from sliding;
Adjust grinding rotating disk 402 and trimming device 500(repairs rotating disk 503 by digital control system simultaneously) angle, makeObtaining abrasive grinding wheel 403 needs the angle of grinding consistent with helical gear workpiece, starts power grinding work piece; Grinding some is sameHelical gear after, need to repair abrasive grinding wheel 403 time, only need abrasive grinding wheel 403 to move along Z-direction rolling guide 201Crushing is carried out in the position that can repair to trimming device 500; After finishing, abrasive grinding wheel 403 rolls and leads along Z-directionRail 201 moves to the position of grinding helical gear workpiece, continues grinding helical gear.
In whole dressing process, because grinding rotating disk 402 and finishing rotating disk 503 pass through digital control system synchronous rotary, because ofThis without the angle of rotating grinding rotating disk 402 to reach the position that will repair, thereby reached useful technique effect of the present invention.
The word in the description orientation that adopted herein " on ", D score, " left side ", " right side " etc. be all the bases that facilitate in order to illustrateOrientation in accompanying drawing shown in drawing, in actual device, these orientation may be due to the disposing way of device to some extentDifferent.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not rightThe restriction of embodiments of the present invention. For those of ordinary skill in the field, also can on the basis of the above descriptionTo make other changes in different forms. Here cannot give exhaustive to all embodiments. Everyly belong to thisThe apparent variation that bright technical scheme is extended out or the still row in protection scope of the present invention of variation.
Claims (14)
1. numerical control formed grinding wheel gear grinding machine, these gear grinding machines comprise support (100), head tree (200), workpiece rotating part (300), millTurning device (400) and trimming device (500); Described workpiece rotating part (300) is fixed on support (100);
Described support (100) is provided with X to rolling guide (101), and described head tree (200) sliding fit is assemblied in X and leads to rollingOn rail (101);
Described head tree (200) is provided with Z-direction rolling guide (201), and described grinding attachment (400) is fixed slide block by grinding(401) sliding fit is assemblied on Z-direction rolling guide (201);
Described grinding attachment (400) comprises grinding rotating disk (402), abrasive grinding wheel (403) and abrasive grinding wheel fixed part (404);It is upper that described grinding rotating disk (402) is packed in the fixing slide block (401) of described grinding rotationally, described abrasive grinding wheel fixed part(404) be fixed on grinding rotating disk (402) above, the emery wheel central shaft of described abrasive grinding wheel (403) is rotatably connected to described millCut on emery wheel fixed part (404); Described abrasive grinding wheel (403) can be along its emery wheel central shaft rotation;
It is characterized in that: described trimming device (500) comprises finishing base (501), finishing slide (502), finishing rotating disk (503)And freeing wheel (504); Described finishing base (501) is fixedly assemblied in head tree (200) top, and finishing base (501) is provided with YTo finishing guide rail (506), described finishing slide (502) sliding fit is assemblied on Y-direction finishing guide rail (506); Described freeing wheel(504) be installed in finishing rotating disk (503) above, described freeing wheel (504) can be along its central axis rotation; Described finishing rotating disk(503) be packed in rotationally on described finishing slide (502);
The central axes of the pivot center direction of described finishing rotating disk (503) and grinding rotating disk (402), and described finishing rotating disk(503) with grinding rotating disk (402) synchronous rotary.
2. numerical control formed grinding wheel gear grinding machine according to claim 1, is characterized in that:
In described trimming device (500), be provided with a numerical control gyroaxis (505), described finishing rotating disk (503) can return around this numerical controlThe axis direction rotation of rotating shaft (505), the central axes of the axis of described numerical control rotary axle (505) and grinding rotating disk (402),This numerical control rotary axle (505) and grinding rotating disk (402) central shaft synchronous rotary.
3. numerical control formed grinding wheel gear grinding machine according to claim 2, is characterized in that:
Described finishing slide (502) is provided with the numerical control rotary axial brake device for driving numerical control rotary axle (505) rotation(700); It is upper that one end of described numerical control rotary axle (505) is fixed on finishing rotating disk (503), and the other end and described numerical control rotary axle driveMoving device (700) is connected.
4. numerical control formed grinding wheel gear grinding machine according to claim 3, is characterized in that:
Described finishing slide (502) is provided with numerical control rotary shaft through-hole; Described numerical control rotary axle (505) one end is fixed on finishing and turnsDish (503) is upper, and the other end is through numerical control rotary shaft through-hole and described numerical control rotary axial brake device on finishing slide (502)(700) be connected.
5. numerical control formed grinding wheel gear grinding machine according to claim 4, is characterized in that:
Described numerical control rotary axial brake device (700) is servomotor; It is upper that described servomotor is installed in finishing slide (502),The drive output of this servomotor directly connects with described numerical control rotary axle (505).
6. numerical control formed grinding wheel gear grinding machine according to claim 4, is characterized in that:
Described numerical control rotary axial brake device (700) comprise servomotor (701), ball-screw (702), ball nut (703),Slide block (704), scroll box (705), precise linear guide (706) and connecting rod (707); Described servomotor (701) is packed in instituteState finishing slide (502) upper, this servomotor (701) output is fixed ball-screw (702), and this ball-screw (702) is exteriorIs furnished with ball nut (703), the outer fixing sheathed slide block (704) of this ball nut (703); Described scroll box (705) sliding fit dressFit over precise linear guide (706) upper, described slide block (704) is fixedly connected with scroll box (706); Described numerical control rotary axle(505) sidewall is provided with crank (507); One end of described connecting rod (701) is rotatably fixed on sliding shoe, and the other end is rotatableBe fixed on crank (507).
7. numerical control formed grinding wheel gear grinding machine according to claim 6, is characterized in that:
Described connecting rod (707) is two, and being rotatably fixed on of described two connecting rods (707) one end symmetry slided soon(704) both sides, the other end symmetry of described two connecting rods (707) is rotatably fixed on crank (507).
8. numerical control formed grinding wheel gear grinding machine according to claim 7, is characterized in that:
Described finishing slide (502) is hollow frame structure, and described numerical control rotary axial brake device (700) is arranged on finishing slide(502) in hollow frame, described precise linear guide (706) be directly fixed on finishing slide (502) hollow frame inOn wall.
9. according to any described numerical control formed grinding wheel gear grinding machine in claim 1-8, it is characterized in that:
Described trimming device (500) is provided with for trimming device (500) at the upper leading screw sliding of Y-direction finishing guide rail (506)And provide the servomotor (509) of power for this leading screw (508).
10. according to any described numerical control formed grinding wheel gear grinding machine in claim 1-8, it is characterized in that:
Described support (100) is provided with the leading screw (102) for driving head tree (200) above to move to rolling guide (101) at XWith the servomotor (103) that power is provided for this leading screw.
11. according to any described numerical control formed grinding wheel gear grinding machine in claim 1-8, it is characterized in that:
Described head tree (200) is provided with for driving grinding attachment (400) vertical the upper master who slides of Z-direction rolling guide (201)Post leading screw (202) and provide the servomotor (203) of power for this head tree leading screw (202).
12. according to any described numerical control formed grinding wheel gear grinding machine in claim 1-8, it is characterized in that:
On described support (100), be also provided with secondary column (600), the secondary column that this pair column (600) is provided with vertical direction rollsGuide rail (601), the cone centre (602) that the upper slidable fit of this rolling guide (601) positions while being useful on Gear Processing, shouldThe central axis of cone centre (602) is consistent with the central axis of workpiece rotating part (300).
13. numerical control formed grinding wheel gear grinding machines according to claim 12, is characterized in that:
Described secondary column (600) is provided with for driving cone centre (602) in the upper mobile pair of secondary column rolling guide (601)Column leading screw (603) and provide the servomotor (604) of power for this pair column leading screw (603).
14. according to any described numerical control formed grinding wheel gear grinding machine in claim 1-8, it is characterized in that:
Described sliding fit assembling is rolling sliding fit.
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| CN201210274061.8A CN102773565B (en) | 2012-08-02 | 2012-08-02 | Numerical control formed grinding wheel gear grinding machine |
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| CN201210274061.8A CN102773565B (en) | 2012-08-02 | 2012-08-02 | Numerical control formed grinding wheel gear grinding machine |
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| CN102773565B true CN102773565B (en) | 2016-05-11 |
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Denomination of invention: CNC forming grinding wheel gear grinding machine Effective date of registration: 20230816 Granted publication date: 20160511 Pledgee: Weihai Wendeng sub branch of China Postal Savings Bank Co.,Ltd. Pledgor: Weihai Guangyu Dacheng CNC Machine Tool Co.,Ltd. Registration number: Y2023980052307 |
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