CN107617796A - The process equipment of curved tooth line gear - Google Patents
The process equipment of curved tooth line gear Download PDFInfo
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- CN107617796A CN107617796A CN201610555447.4A CN201610555447A CN107617796A CN 107617796 A CN107617796 A CN 107617796A CN 201610555447 A CN201610555447 A CN 201610555447A CN 107617796 A CN107617796 A CN 107617796A
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Abstract
The invention discloses a kind of process equipment of curved tooth line gear, including：Base and the first milling head being arranged on the base, the second milling head and panoramic table；Wherein, the first milling head is provided with double wedge face milling cutters and the first milling cutter motor；Second milling cutter is provided with concave tooth face milling cutters and the second milling cutter motor；Double wedge face milling cutters and concave tooth face milling cutters are circular discoid, raised vertically, apart from the center of circle equidistantly multiple blades are circumferentially provided with circular card, and double wedge face milling cutters and concave tooth face milling cutters rotate under the driving of motor by axle of the respective center of circle, first and second milling heads are located at turn around the homonymy of platform, and blade is towards the side where panoramic table；Panoramic table is provided with gear blank fixed part；Panoramic table can move relative to the first and second milling heads.How the present invention installs for milling cutter provides solution, effectively increases machining efficiency, and reduce manufacture and the maintenance cost of milling cutter.
Description
Technical field
The present invention relates to a kind of process equipment of curved tooth line gear.
Background technology
Using arc cylindrical gear (alternatively referred to as curved tooth line gear) in increasing gear drive, it is mainly characterized by
The gear teeth on cylinder are curved.Arc cylindrical gear has that meshing performance is good, overlap coefficient is big, axial force is cancelled out each other, passed
The advantages that efficiency of movement is high, bending strength is big, contact strength of tooth surface is good, arc cylindrical gear has superior drive characteristic, big
The application of straight-tooth, helical teeth and double helical tooth roller gear can be replaced under most application environments.Meanwhile arc cylindrical gear has biography
It is dynamic steady, rotational noise is low, efficiency high, service life are long, using the feature such as low with safety requirements, before there is wide application
Scape.
Although curved tooth line gear has many advantages, for how to process curved tooth line gear, do not carry still at present
Go out effective scheme.
The patent of Patent No. 201310110784.9 discloses a kind of device for being processed to curved tooth line gear.
The device is fixed on planet carrier, planetary gear, sun gear and idle pulley on bearing using setting, with planet carrier rotary oscillation, too
Positive wheel, idle pulley, planetary gear can be rotated, and cutting at one time will be completed to gear blank when planet carrier rotates a circle.Although the patent
Disclosed device can cut arc tooth trace in gear blank, but the patent use cutter include sun gear, idle pulley and
Planetary gear, its structure is extremely complex, and spent cost is higher in itself for cutter as making.In addition, in working angles, on
State sun gear, idle pulley and planetary gear to be engaged with each other and rotate, resistance is larger in the case of high-speed cruising, and not only processing efficiency is not
Height, and once one of gear damages, and whole cutter will be caused not work, it is necessary to carry out integral replacing, entered
One step adds maintenance cost.In addition, above-mentioned patent only discloses the structure of cutter, how to be arranged on for cutter in equipment,
How workpiece is fixed, and does not provide solution.
For curved tooth line gear in correlation technique process tool it is complicated, processing efficiency is low, manufacture and maintenance cost
The problem of how high and cutter is fixedly mounted, not yet proposes effective solution at present.
The content of the invention
The problem of in correlation technique, the present invention propose a kind of process equipment of curved tooth line gear, can effectively reduced
The cost of cutter is manufactured and safeguarded, improves the stability of processing efficiency and process, and how to pacify for cutter and gear blank
Cutting is carried out in equipment and provides effective solution.
The invention provides a kind of process equipment of curved tooth line gear.
Base and the panoramic table being arranged on base and one are included according to the process equipment of the curved tooth line gear of the present invention
To two milling heads；In the case where being provided with two milling heads, the first milling head is provided with double wedge face milling cutters and the first milling cutter
Motor, connected between double wedge face milling cutters and the first milling cutter motor；Second milling head is provided with concave tooth face milling cutters and
Two milling cutter motors, connected between concave tooth face milling cutters and the second milling cutter motor；Panoramic table, and/or the first milling head and
Second milling head is arranged on base in a manner of it can be slided on the table top of base；First milling head and the second milling head position
In the homonymy of panoramic table, and the blade of double wedge face milling cutters and concave tooth face milling cutters is towards the side where panoramic table；
In the case where being provided with a milling head, process equipment includes base and the panoramic table being arranged on base, and
And it is further provided with changing the tool magazine of milling cutter for the milling head, the milling cutter includes double wedge face milling cutters and concave tooth face milling cutters；Convex
Flank of tooth milling cutter or concave tooth face milling cutters can be rotated after being arranged on the milling head under the driving of motor, and blade direction is returned
Side where turntable；At least one of the milling head and panoramic table are installed in a manner of it can be slided on the table top of base
On base；
Wherein, double wedge face milling cutters and concave tooth face milling cutters are circular discoid, are circumferentially provided with circular card
It is raised vertically, apart from the equidistant multiple blades in the center of circle, and double wedge face milling cutters and concave tooth face milling cutters under the driving of motor with each
Rotated from the center of circle for axle；
Panoramic table is provided with gear blank fixed part and table servo motor, and table servo motor connects with the transmission of gear blank fixed part
Connect and drive gear blank fixed part to rotate.
Wherein, the milling cutter tooth form half-angle of double wedge face milling cutters and concave tooth face milling cutters is equal to gear section garden pressure angle, knife before milling cutter
Face is being design basis away from milling cutter radial dimension is measured at tooth top (ha+c) m, wherein, ha is addendum coefficient, and c is bottom clearance system
Number, m is module.
In addition, the flank edge inboard of double wedge face milling cutters is cutter-edge formation, the pitch diameter of double wedge face milling cutters is 2Re, double wedge face milling cutters
The pitch diameter of outer edge is less than 2Re+ π m, wherein, Re is to be processed gear double wedge exterior feature radius, and m is module.
On the other hand, the outer edge of concave tooth face milling cutters is cutter-edge formation, and the pitch diameters of concave tooth face milling cutters is 2Ri, concave tooth facing cut
The pitch diameter of the flank edge inboard of knife is more than 2Ri- π m, wherein, Ri is to be processed gear concave tooth exterior feature radius, and m is module.
In one embodiment, the double wedge face milling cutters, width Be meets following condition at double wedge line milling cutter section garden：
For concave tooth face milling cutters, width Bi meets following condition at concave tooth line milling cutter section garden：
Wherein, Re is to be processed gear double wedge exterior feature radius, and Ri is to be processed gear concave tooth exterior feature radius, and m is module.
In addition, each blade of double wedge face milling cutters and concave tooth face milling cutters is arranged on cutterhead by wedge briquetting and screw.
In addition, panoramic table is arranged on cross slid platform, cross slid platform is installed on the first slide rail set on base, panoramic table
On the second slide rail of cross slid platform, the first slide rail extends in a first direction, and the second slide rail extends in a second direction, and first
Direction is vertical with second direction.
In addition, in the case where being provided with two milling heads, each milling in the first milling head and the second milling head
Head is arranged on independent slide unit in a manner of it can move, and each slide unit is arranged on the slide rail of base.
In addition, in the case where being provided with two milling heads, the rotary shaft of double wedge face milling cutters and concave tooth face milling cutters is put down each other
OK.
In addition, gear blank fixed position is at the top of the panoramic table, the table top of the rotary shaft of gear blank fixed part perpendicular to base；Revolution
Platform is provided with sensor, for carrying out feedback compensation to the rotating accuracy of gear blank fixed part.
In addition, the process equipment be the slip on the table top of base of numerical control device, panoramic table and/or milling head and
The rotation of gear blank fixed part is closed-loop control.
The present invention fixes milling cutter on milling head, is milling cutter by setting single or two milling heads in the homonymy of panoramic table
How to install and provide solution, also, because milling cutter is made up of cutterhead and raised multiple blades, so milling cutter construction is simple
Single, manufacturing cost is relatively low；Because principal cutting movement of the milling cutter in processing is rotated using the cutterhead center of circle as axle, so it is dynamic
Make relatively simple, stock-removing efficiency can be effectively improved by increasing speed；In addition, the present invention is carried out by way of cutterhead rotation
Processing, the radian of tooth trace depend on the diameter of milling cutter body, are carried out compared to the blade of big radius of turn is used in conventional art
The method of processing, the present invention can process the curved tooth line gear that camber line is longer, radian is more obvious, help to play curved tooth line
The various advantages of gear；In addition, the present invention can be separately provided for processing the milling cutter of two kinds of flank of tooth on two milling heads,
The tooth trace of arc can be cut after being successively processed by two kinds of different milling cutters to all teeth in gear blank, is being processed
During eliminate tool changing operation, further increase processing efficiency；In addition, the present invention can also only set single milling head,
The processing of two kinds of flank of tooth is completed by tool changing, can so reduce the volume of equipment, reduces the cost of process equipment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the top view of the process equipment of curved tooth line gear according to embodiments of the present invention；
Fig. 2 is the side view of the process equipment of curved tooth line gear according to embodiments of the present invention；
Fig. 3 a to Fig. 3 d are the structure charts that process equipment according to embodiments of the present invention uses milling cutter；
Fig. 4 a and 4b are the signals that the double wedge face milling cutters of process equipment according to embodiments of the present invention are processed to gear blank
Figure；
Fig. 5 a and Fig. 5 b are showing of being processed to gear blank of the concave tooth face milling cutters of process equipment according to embodiments of the present invention
It is intended to；
Fig. 6 is the flank profil for the arcuate tooth trace cylindrical gear edge section garden cylinder that process equipment according to embodiments of the present invention is processed
Profile stretch-out view.
Base 1；First slide rail 11；First milling head 2；Double wedge face milling cutters 21；Cutterhead 211；Blade 212；Fixing hole 213；
First milling cutter motor 22；Milling head box 23；Milling head slide unit 24 afterwards；Rear column 25；Second milling head 3；Concave tooth face milling cutters 31；The
Two milling cutter motors 32；Preceding milling head 33；Preceding milling head slide unit 34；Front column 35；Panoramic table 4；Gear blank fixed part 41；Table servo
Motor 42；Cross slid platform 5；Second slide rail 51；X is to slide unit servomotor 6；Y-direction slide unit servomotor 7；Gear blank 8.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
According to an embodiment of the invention, there is provided a kind of process equipment of curved tooth line gear.
As shown in figure 1, the process equipment of curved tooth line gear according to embodiments of the present invention can be numerical control device, it is wrapped
Include：Base 1 and the first milling head 2 being arranged on base, the second milling head 3 and panoramic table 4.
Wherein, the first milling head 2 is provided with the milling cutter motor 22 of double wedge face milling cutters 21 and first and (is referred to as milling head
Case motor), it is connected between the milling cutter motor 22 of double wedge face milling cutters 21 and first.Second milling head 3 is then provided with concave tooth
The milling cutter motor 32 of face milling cutters 31 and second, it is connected between the milling cutter motor 32 of concave tooth face milling cutters 31 and second.
In one opposite embodiment, the installation site of double wedge face milling cutters and concave tooth face milling cutters can exchange, that is to say, that the first milling
Concave tooth face milling cutters can be set on first 2, and double wedge face milling cutters are set on the second milling head.
Wherein, the first milling head 2 may further include milling head box 23, be connected to the drive of the milling cutter of double wedge face milling cutters 21 and first
Between dynamic motor 22, and transmit the power applied by the first milling cutter motor 22.In one embodiment, the first milling head 2 is gone back
Rear milling head slide unit 24 and rear column 25 can be further provided with, the installation of double wedge face milling cutters 21 and milling head box 23, milling head box 23 are solid
It is scheduled on the slide plate of rear milling head slide unit 24, upper-lower height can manually adjust, to adapt to process the Gear Processing of different height.
In one embodiment, the structure of the second milling head 3 can be identical with the correspondence of the first milling head 2, both difference
It is that the flank of tooth that milling cutter is processed is different.Specifically, the second milling head 3 can include milling head box 33, be connected to concave tooth facing cut
Between the milling cutter motor 32 of knife 31 and second, and transmit the power applied by the second milling cutter motor 32.Second milling head 3 is also
Milling head box slide unit 34 and front column 35 can be included, the installation of concave tooth face milling cutters 31 is fixed on preceding milling with preceding milling head 33, preceding milling head 33
On the slide plate of head slide unit 34, upper-lower height can manually adjust, to adapt to process the Gear Processing of different height.
In one embodiment, above-mentioned first milling cutter motor 22 and the second milling cutter motor can be variable-frequency motors
(servomotor).
Referring to Fig. 2, panoramic table 4 is provided with gear blank fixed part 41 and table servo motor 42, table servo motor 42 with
Gear blank fixed part 41 is connected and drives gear blank fixed part 41 to rotate.Gear blank fixed part 41 is located at turn around the top of platform 4, and gear blank is solid
Determine the table top of the rotary shaft perpendicular to rotary table in portion 41.In order to ensure that the first milling head and the second milling head can be to revolutions
Fixed gear blank 8 is processed on platform 4, and the milling head 2 of panoramic table 4, and/or first and the second milling head 3 are with can be in base 1
The mode slided on table top is arranged on base 1, so that panoramic table 4 can be relative to the first milling head 2 and the second milling
First 3 motion.
As shown in figure 1, in one embodiment, panoramic table 4 is fixed on cross slid platform 5, cross slid platform 5 is installed on bottom
The first slide rail 11 for setting on seat 1, panoramic table 4 are arranged on the second slide rail 51 of cross slid platform 5, and the first slide rail 11 is along first party
To extension, the second slide rail 51 extends in a second direction, and first direction is vertical with second direction.First milling head 2 and the second milling
Position corresponding to first 3 is respectively a station.
Process equipment shown in Fig. 1 may further include X to slide unit servomotor 6 and Y-direction slide unit servomotor 7.Fig. 1
Shown longitudinal direction is X-direction, is laterally Y-direction, and X is used to drive panoramic table 4 to transport along the second slide rail 51 to slide unit servomotor 6
Dynamic (that is, moving along the X direction), so as to allow panoramic table 4 can be in the station corresponding to the first milling head 2 and the second milling head institute
Moved between corresponding station, complete the conversion of station, and for completing single flank profil generating motion (inner driving system), i.e. milling
Go out the motion of flank profil；Y-direction slide unit servomotor 7 (that is, is transported along the Y direction for driving panoramic table 4 to be moved along the first slide rail 11
It is dynamic), so as to allow milling cutter radially to be cut and be exited along gear is processed.
In addition, table servo motor 42 is then used for the dividing movement for realizing gear blank, i.e. after the complete flank profil of milling, turntable is watched
Take the driving of motor 42 and be processed motion of the gear compound graduation to next teeth groove.Moreover, in double wedge face milling cutters and concave tooth facing cut
For knife when processing single tooth, table servo motor 42 is additionally operable to the generating motion for coordinating X to realize flank profil to slide unit servomotor 6.
In process is transformed into, table servo motor 42 drives the gear blank 8 of panoramic table 4 to rotate, and now X drives to slide unit servomotor 6
Dynamic panoramic table 4 along panoramic table 4 rotate it is tangential moved in X-direction, wherein, added the section garden linear velocity Vw=rack sections of gear blank
The linear velocity Vx of line.In one embodiment, panoramic table main shaft dress can have high accuracy circular grating, and panoramic table rotating accuracy is entered
Row feedback compensation, belong to closed-loop digital control.
In process, X can be first passed through and be moved to the gear blank 8 of slide unit servomotor 6 by panoramic table and thereon
Station corresponding to one milling head 2, after all convex sides are processed, by X to slide unit servomotor 6 by panoramic table and thereon
Gear blank 8 be moved to the second milling head 3 corresponding to station, all concave tooth faces are processed, so as to complete to processing with teeth.Or
Person, all concave tooth faces can also be first processed, reprocess all convex sides afterwards.
In one embodiment, the displacement accuracy of X to slide unit servomotor 6 and Y-direction slide unit servomotor 7 can be by servo
Motor driven ball screws ensure that the rotation of panoramic table 4 is realized by servomotor driving worm and wormwheel.
So, it is relative motion of the achievable panoramic table relative to the first and second milling heads by a slide unit.
Fig. 1 and process equipment illustrated in fig. 2 have the advantage that：
(1) it is double milling head list cross sliding table structures, two one side cutterhead milling cutters, one the milling cutter mill teeth geosynclinal convex flank of tooth, another
The milling cutter mill teeth geosynclinal concave flank of tooth, the concavo-convex flank of tooth is divided among two station processing, and adjustment is simple；
(2) workpiece once mounting processes the concavo-convex flank of tooth, and machining accuracy is high, steady quality, and production efficiency is high；
(3) each numerical control reference axis uses closed-loop control, kinematic accuracy height；
(4) by means of numerical control device, whole process full-digital control, automaticity is high, and artifact pair adds
Work influence is small, saves manually to knife, and operation is simpler, and precision is higher (to be improved one or more smart compared to traditional diamond-making technique
Spend grade).
In other embodiments, panoramic table 4 can be fixedly mounted with base 1, now, the first milling head 2 and the second milling
Cut each milling head in first 3 to be arranged on independent slide unit in a manner of it can move, each slide unit is installed in bottom
On the slide rail of seat 1；Or panoramic table 4, the first milling head 2 and the second milling head 3 are arranged on independently in a manner of it can move
Slide unit on；Or the milling head 2 of panoramic table 4 and first is arranged on slide unit so as to be moved on base 1, and the second milling
First 3 are cut to be fixedly mounted on base 1.In these embodiments, using the structure of slide unit can slide with the cross shown in Fig. 1
The structure of platform 5 is similar, or can also be connected using the motion of other kinds of slide unit, even other forms to realize panoramic table
4 and the first relative motion between milling head 2 and the second milling head 3.
Equipment with reference to shown in Fig. 1, the first milling head 2 and the second milling head 3 are located at turn around the homonymy of platform 4, double wedge facing cut
The blade of knife 21 and concave tooth face milling cutters 31 is towards the side where panoramic table 4, that is to say, that in the Y direction, panoramic table 4
In the left side of the first milling head 2 and the second milling head 3, now, the blades of double wedge face milling cutters 21 and concave tooth face milling cutters 31 is along Y side
To towards the side where panoramic table, i.e. towards left side, the rotary shaft of double wedge face milling cutters 21 and concave tooth face milling cutters 31 is put down each other
OK.
In addition, Fig. 3 a show the general configuration of double wedge face milling cutters 21 (structure of concave tooth face milling cutters 31 is similar therewith).From
It can be seen from the figure that, the cutterhead 211 of double wedge face milling cutters is circle, is uniformly distributed multiple blades 212 thereon.Shown by Fig. 3 a
In embodiment, each blade 212 of double wedge face milling cutters 21 is fixed on (class on cutterhead 211 by corresponding wedge briquetting and screw
As, the blade of concave tooth face milling cutters can also be fixed on the cutterhead of concave tooth face milling cutters by way of wedge briquetting and screw).
Pass through this fixed form so that each blade of double wedge face milling cutters and concave tooth face milling cutters can be dismantled and changed respectively, just
In maintenance, and reduce cost.
In one embodiment, double wedge face milling cutters can be connected by the fixing hole 213 that cutterhead middle position is set with main shaft
Connect.Similarly, the cutterhead center of concave tooth face milling cutters can equally be provided with same or similar fixing hole.In other embodiment
In, double wedge face milling cutters and concave tooth face milling cutters can be fixed on respective main shaft by other means.
Fig. 3 b show the blade of double wedge face milling cutters and concave tooth face milling cutters.As shown in Figure 3 b, the stylolitic part of blade bottom
For being fixedly mounted on cutterhead, the relatively sharp parts on top are used to cut.
With reference to the blade shown in Fig. 3 b, the mentality of designing of arcuate tooth trace cylindrical gear milling cutter is as follows：
(1) arcuate tooth trace cylindrical gear, which needs two or more cutterhead to complete processing, at least needs to design a double wedge line milling
Cutterhead and a concave tooth line facing cutter；
(2) design basis with gear compound graduation garden (section garden) place's arc radius as milling cutter；
(3) milling cutter tooth form half-angle is equal to gear section garden pressure angle；
(4) milling cutter rake face is being design basis away from milling cutter radial dimension is measured at tooth top (ha+c) m, wherein, ha is tooth
Coefficient is risen, c is tip clearance coefficient, and m is module.The title ginseng of parameter shown in Fig. 3 b is shown in Table 1：
Table 1
When the blade shown in Fig. 3 b is used for double wedge face milling cutters, width takes Be at facewidth milling cutter section garden；When shown in Fig. 3 b
When blade is used for concave tooth face milling cutters, width takes Bi at milling cutter section garden.Be and Bi definition and value are as shown in table 2 below：
Table 2
Fig. 3 c are the structure charts that equipment according to embodiments of the present invention uses double wedge face milling cutters.As shown in Figure 3 c, double wedge
The pitch diameter of face milling cutters 21 is 2Re.In one embodiment, the milling cutter rake face of blade and the distance on blade top are 1.25m, and
The pitch diameter of outer edge is less than 2Re+ π m.Wherein, Re is the double wedge Kuo Jie gardens radius for being processed gear blank, and m is module.
As shown in fig. 4 a, when being cut, double wedge face milling cutters 21 rotate by axle of its center of circle, while gear blank 8 can phase
The relative motion of Y-direction is carried out for double wedge face milling cutters 21, as multiple blades are with the motion of arc-shaped track, along gear blank 8
Radially cut, after cutting depth reaches, turntable rotates and X-direction movement is that Vw=Vx one flank of tooth of completion transforms into processing.I.e.
Machinable obtains the convex side shown in dotted line in figure.As shown in Fig. 4 b and Fig. 3 c, in working angles, double wedge face milling cutters 21 it is interior
Side edge is cutter-edge formation, and outer edge is auxiliary knife edge.
Fig. 3 d are the structure charts that equipment according to embodiments of the present invention uses concave tooth face milling cutters.As shown in Figure 3 d, concave tooth
The pitch diameter of face milling cutters 31 is 2Ri, and the pitch diameter of flank edge inboard is more than 2Ri- π m.In one embodiment, the milling cutter rake face of blade
Distance with blade top is 1.25m.Wherein, Ri is the concave tooth Kuo Jie gardens radius for being processed gear blank, and m is module.
As shown in Figure 5 a, similar with the cut-in manner shown in Fig. 4 a, in cutting, concave tooth face milling cutters 31 are equally with its center of circle
Rotated for axle, while gear blank 8 can carry out the relative motion of Y-direction relative to concave tooth face milling cutters 31, as multiple blades are with circle
Arcuation track is moved, and is cut along the radial direction of gear blank 8, and after cutting depth is reached, turntable rotates and X-direction movement is Vw=Vx
One flank of tooth of completion transforms into processing.I.e. machinable obtains the concave tooth face shown in dotted line in figure.As shown in Fig. 5 b and Fig. 3 d, cutting
During cutting, the outer edge of concave tooth face milling cutters 31 is cutter-edge formation, and flank edge inboard is auxiliary knife edge.
When being cut by double wedge face milling cutters and concave tooth face milling cutters, when forming and cutting sword (cutter-edge formation) is used to process
The generating formed gear flank of tooth is cut, auxiliary knife edge is used to cut gear blank excess metal material.
In addition, the determination principle for being processed gear concave tooth exterior feature radius Ri is as follows：
The determination principle for being processed gear concave tooth exterior feature radius Ri is Ri as small as possible, to increase the overlapping system of gear engagement
Number.Minimum Ri should meet that 2Ri ＞ b, wherein b are to be processed gear tooth width.
When modulus is larger, facing cutter cutting edge need to be designed and manufactured into side set cutting edge, that is, divide N number of cutting edge group, but
It need to ensure that a composing type cutting-edge is correct, when other (N-1) group cutting edge is aids in cutting edge so that knife cutting is processed
Uniform force is laborsaving, but must assure that all cutting edges all within the scope of Bi, Be is such as schemed.
The flank profil forming principle of arcuate tooth trace cylindrical gear is the theory of engagement of arcuate tooth trace cylindrical gear and curved tooth line rack, i.e.,
The section garden cylinder of arcuate tooth trace cylindrical gear carries out pure rolling with the pitch plane of curved tooth line rack.Therefore, curved tooth proposed by the present invention
The design principle of line roller gear milling cutter, it is exactly come really according to flank profil profile stretch-out view of the arcuate tooth trace cylindrical gear along section garden cylinder
Determine relative dimensions of the arcuate tooth trace cylindrical gear milling cutter in pitch plane.Fig. 6 is added by process equipment according to embodiments of the present invention
Flank profil profile stretch-out view of the arcuate tooth trace cylindrical gear of work along section garden cylinder.In figure 6, the wide arc radius of double wedge is Re, recessed
The arc radius of flank profil is Ri, facewidth b.In one embodiment, to improve the contact rate of gear pair, Ri is slightly larger than Re.
Described above is the technical scheme and embodiment that two milling heads are set on base 1.In fact, on base
One milling head can also be only set.Now, tool magazine is further provided with according to the process equipment of the present invention, can be deposited in tool magazine
Milling cutter is put, for example, open ended milling cutter includes double wedge face milling cutters and concave tooth face milling cutters in tool magazine, is required according to technological process, can
To carry out tool changing to single milling head, to install double wedge face milling cutters or concave tooth face milling cutters on single milling head.
Double wedge face milling cutters or concave tooth face milling cutters are whether installed, the blade projected direction of milling cutter should be towards panoramic table institute
Side.
, it is necessary to which convex side and concave tooth face to curved tooth line gear successively add in the scheme of single milling head is only included
Work.For example, double wedge face milling cutters can be installed first on milling head；After all convex sides are processed, by double wedge face milling cutters
Change and concave tooth face milling cutters are installed, to process all concave tooth faces.Or can also first to install concave tooth face milling cutters all to process
Concave tooth face, change double wedge face milling cutters again afterwards to process all convex sides.
In the scheme that single milling head is only set, the shapes of double wedge face milling cutters and concave tooth face milling cutters, structure and parameter, return
The slip of the structure of turntable and control and milling head and/or panoramic table on base etc., it equally may refer to hereinbefore be directed to
The description that milling cutter is done used in double milling heads scheme.Here repeat no more.
In summary, by means of technical scheme, by set in the side of panoramic table single milling head or
Two milling heads are set in the homonymy of panoramic table, milling cutter is fixed on milling head, how to be fixedly mounted and provide for milling cutter and gear blank
Solution, and because milling cutter is made up of cutterhead and raised multiple blades, so its is simple in construction, manufacturing cost is relatively low, just
In replacing and safeguard；Because principal cutting movement of the milling cutter in processing is rotated using the cutterhead center of circle as axle, it is acted more
Simply, it can not only effectively cut, and stock-removing efficiency can be effectively improved by increasing speed；In addition, the present invention can be
It is separately provided for processing the milling cutter of two kinds of flank of tooth on two milling heads, by two kinds of different milling cutters successively to all teeth
The tooth trace of arc can be cut after being processed in gear blank, eliminates tool changing operation in process, is further improved
Processing efficiency；In addition, the present invention can also only set single milling head, the processing of two kinds of flank of tooth is completed by tool changing, this
Sample can reduce the volume of equipment, reduce the cost of process equipment.
After using scheme proposed by the present invention, because the diameter of cutterhead influences the radian of curved tooth line, so can make to add
The curved tooth line that work goes out gear is longer, and radian is more obvious, makes touch strength of gear and bending strength bigger, so as to play as far as possible
The various premium properties of curved tooth line Cylindrical gears transmission.For example, the gear that the method for the present invention is processed can reach：Facewidth b
Reach 2 or so with indexing Yuan Chu garden arc radius R (Re/Ri) ratio (b/Re and b/Ri).And processed in routine techniques
The b/R maximums 0.2 of gear, its radian very unobvious, therefore the various advantages of curved tooth line gear, this hair can not have been given play to
It is bright to solve this problem well.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
- A kind of 1. process equipment of curved tooth line gear, it is characterised in that including：Base (1) and the panoramic table (4) being arranged on the base and one to two milling head；It is being provided with two millings In the case of head, the first milling head (2) is provided with double wedge face milling cutters (21) and the first milling cutter motor (22), the convex side Connected between milling cutter (21) and the first milling cutter motor (22)；Second milling head (3) is provided with concave tooth face milling cutters (31) With the second milling cutter motor (32), it is connected between the concave tooth face milling cutters (31) and the second milling cutter motor (32)； The panoramic table (4), and/or first milling head (2) and second milling head (3) are with can be in the base (1) The mode slided on table top is arranged on the base (1)；First milling head (3) and second milling head (3) are located at The homonymy of the panoramic table (4), and the blade of the double wedge face milling cutters (21) and the concave tooth face milling cutters (31) is towards institute State the side where panoramic table (4)；In the case where being provided with a milling head, the process equipment includes base (1) and is arranged on the base (1) Panoramic table, and it is further provided with changing the tool magazine of milling cutter for the milling head, the milling cutter includes double wedge face milling cutters (21) and recessed Flank of tooth milling cutter (31)；Can be in motor after double wedge face milling cutters (21) or concave tooth face milling cutters (31) are arranged on the milling head Driving is lower to rotate, and the side where blade towards the panoramic table (4)；In the milling head and the panoramic table (4) extremely It is one of few to be arranged in a manner of it be slided on the table top of the base (1) on the base (1)；Wherein, the double wedge face milling cutters (21) and concave tooth face milling cutters (31) are circular discoid, circumferentially square in circular card To be provided with it is raised vertically, apart from the equidistant multiple blades in the center of circle, and the double wedge face milling cutters (21) and the concave tooth facing cut Knife (31) rotates under the driving of motor by axle of the respective center of circle；The panoramic table (4) is provided with gear blank fixed part (41) and table servo motor (42), the table servo motor (42) it is connected with the gear blank fixed part (41) and drives the gear blank fixed part (41) to rotate.
- 2. process equipment according to claim 1, it is characterised in that the double wedge face milling cutters (21) and the concave tooth facing cut The milling cutter tooth form half-angle of knife (31) is equal to gear section garden pressure angle, and milling cutter rake face is away from measurement milling cutter footpath at tooth top (ha+c) m It is design basis to size, wherein, ha is addendum coefficient, and c is tip clearance coefficient, and m is module.
- 3. process equipment according to claim 1, it is characterised in that the flank edge inboard of the double wedge face milling cutters (21) is shaping Blade, the pitch diameter of the double wedge face milling cutters (21) is 2Re, and the pitch diameter of the outer edge of the double wedge face milling cutters (21) is less than 2Re+ π M, wherein, Re is to be processed gear double wedge exterior feature radius, and m is module；The outer edge of the concave tooth face milling cutters (31) is cutter-edge formation, and the pitch diameter of the concave tooth face milling cutters (31) is 2Ri, described recessed The pitch diameter of the flank edge inboard of flank of tooth milling cutter (31) is more than 2Ri- π m, wherein, Ri is to be processed gear concave tooth exterior feature radius, and m is gear die Number.
- 4. processing method according to claim 1, it is characterised in that for the double wedge face milling cutters, double wedge line milling cutter section Width Be meets following condition at garden：<mrow> <mi>B</mi> <mi>e</mi> <mo>&le;</mo> <msqrt> <mrow> <msup> <mrow> <mo>&lsqb;</mo> <msqrt> <mrow> <msubsup> <mi>R</mi> <mi>i</mi> <mn>2</mn> </msubsup> <mo>-</mo> <msup> <mrow> <mo>(</mo> <mfrac> <mi>b</mi> <mn>2</mn> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>+</mo> <mfrac> <mrow> <mi>&pi;</mi> <mi>m</mi> </mrow> <mn>2</mn> </mfrac> <mo>&rsqb;</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mfrac> <mi>b</mi> <mn>2</mn> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>-</mo> <mi>Re</mi> <mo>,</mo> </mrow>For the concave tooth face milling cutters, width Bi meets following condition at concave tooth line milling cutter section garden：<mrow> <mi>B</mi> <mi>i</mi> <mo>&le;</mo> <mi>R</mi> <mi>i</mi> <mo>-</mo> <msqrt> <mrow> <msqrt> <mrow> <msubsup> <mi>R</mi> <mi>e</mi> <mn>2</mn> </msubsup> <mo>-</mo> <msup> <mrow> <mo>(</mo> <mfrac> <mi>b</mi> <mn>2</mn> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>-</mo> <mfrac> <mrow> <mi>&pi;</mi> <mi>m</mi> </mrow> <mn>2</mn> </mfrac> <msup> <mo>&rsqb;</mo> <mn>2</mn> </msup> <mo>-</mo> <msup> <mrow> <mo>(</mo> <mfrac> <mi>b</mi> <mn>2</mn> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>;</mo> </mrow>Wherein, Re is to be processed gear double wedge exterior feature radius, and Ri is to be processed gear concave tooth exterior feature radius, and m is module.
- 5. process equipment according to claim 1, it is characterised in that the double wedge face milling cutters (21) and the concave tooth facing cut Each blade of knife (31) is arranged on cutterhead by wedge briquetting and screw.
- 6. process equipment according to claim 1, it is characterised in that the panoramic table (4) is arranged on cross slid platform (5) On, the cross slid platform (5) is installed on the first slide rail (11) set on the base (1), and the panoramic table (4) is arranged on institute State on the second slide rail (51) of cross slid platform (5), first slide rail (11) extends in a first direction, second slide rail (51) Extend in a second direction, the first direction is vertical with the second direction.
- 7. process equipment according to claim 1, it is characterised in that described in the case where being provided with two milling heads Each milling head in first milling head (2) and second milling head (3) is arranged on independent in a manner of it can move Slide unit on, each slide unit be arranged on the base (1) slide rail on.
- 8. process equipment according to claim 1, it is characterised in that described in the case where being provided with two milling heads The rotary shaft of double wedge face milling cutters (21) and the concave tooth face milling cutters (31) is parallel to each other.
- 9. process equipment according to claim 1, it is characterised in that the gear blank fixed part (41) is located at the panoramic table (4) top, the table top of the rotary shaft of the gear blank fixed part (41) perpendicular to the base (1)；The panoramic table (4) is provided with sensor, for carrying out feedback compensation to the rotating accuracy of the gear blank fixed part (41).
- 10. process equipment according to any one of claim 1 to 9, it is characterised in that the process equipment sets for numerical control It is standby, the slip and the gear blank fixed part (41) of the panoramic table (4) and/or milling head on the table top of the base (1) Rotation be closed-loop control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555447.4A CN107617796A (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555447.4A CN107617796A (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
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|---|---|
| CN107617796A true CN107617796A (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610555447.4A Pending CN107617796A (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108406008A (en) * | 2018-04-17 | 2018-08-17 | 佛山市二轴半科技有限公司 | A kind of special molding milling cutter for processing bump arc gear |
| CN113172283A (en) * | 2021-05-08 | 2021-07-27 | 江西奥夫科压缩机有限公司 | Star wheel flank of tooth processing cutter |
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| CN108406008A (en) * | 2018-04-17 | 2018-08-17 | 佛山市二轴半科技有限公司 | A kind of special molding milling cutter for processing bump arc gear |
| CN113172283A (en) * | 2021-05-08 | 2021-07-27 | 江西奥夫科压缩机有限公司 | Star wheel flank of tooth processing cutter |
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Application publication date: 20180123 |