CN206047261U - The process equipment of curved tooth line gear - Google Patents
The process equipment of curved tooth line gear Download PDFInfo
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- CN206047261U CN206047261U CN201620742204.7U CN201620742204U CN206047261U CN 206047261 U CN206047261 U CN 206047261U CN 201620742204 U CN201620742204 U CN 201620742204U CN 206047261 U CN206047261 U CN 206047261U
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- double wedge
- cutters
- milling cutters
- rotary table
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Abstract
The utility model 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 rotary 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, circumferentially be 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 are rotated by axle of the respective center of circle under the driving of motor, first and second milling heads are located at turn around the homonymy of platform, the side that blade is located towards rotary table；Rotary table is provided with gear blank fixed part；Rotary table can be moved relative to the first and second milling heads.How this utility model is installed there is provided solution for milling cutter, effectively increases machining efficiency, and reduces manufacture and the maintenance cost of milling cutter.
Description
Technical field
This utility model is related to a kind of process equipment of curved tooth line gear.
Background technology
Arc cylindrical gear (alternatively referred to as curved tooth line gear) is adopted in increasing gear drive, which is mainly characterized by
The gear teeth on cylinder are curved.Arc cylindrical gear has that meshing performance is good, overlap coefficient big, axial force is cancelled out each other, passed
The advantages of 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 applied environments.Meanwhile, arc cylindrical gear has biography
Move steady, low rotational noise, efficiency high, long service life, use and the low feature of safety requirements, it is front with wide application
Scape.
Although curved tooth line gear has many advantages, for how to process curved tooth line gear, still do not carry 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 using arranging the planet carrier being fixed on bearing, planetary gear, sun gear and idle pulley, with planet carrier rotary oscillation, too
Positive wheel, idle pulley, planetary gear can be rotated, and will complete cutting at one time to gear blank when planet carrier rotates a circle.Although the patent
Disclosed device can cut arc tooth trace in gear blank, but patent institute using cutter include sun gear, idle pulley and
Planetary gear, its structure are extremely complex, relatively costly spent by cutter itself as making.In addition, in working angles, on
State sun gear, idle pulley and planetary gear to be engaged with each other and rotate, in the case of high-speed cruising, resistance is larger, not only working (machining) efficiency is not
Height, once and one of gear occur damage, whole cutter will be caused to work, needed to carry out integral replacing, entered
One step increased maintenance cost.In addition, above-mentioned patent only discloses the structure of cutter, how cutter is arranged on equipment,
How workpiece is fixed, and does not provide solution.
For the process tool complex structure of curved tooth line gear, working (machining) efficiency in correlation technique it is low, manufacture and maintenance cost
High, and the how hard-wired problem of cutter, not yet proposes effective solution at present.
Utility model content
For the problem in correlation technique, the utility model proposes a kind of process equipment of curved tooth line gear, can be effective
Reduce manufacture and safeguard the cost of cutter, improve the stability of working (machining) efficiency and the course of processing, and be directed to cutter and gear blank such as
What is arranged on equipment carries out cutting there is provided effective solution.
This utility model provides a kind of process equipment of curved tooth line gear.
According to the rotary table that the process equipment of curved tooth line gear of the present utility model includes base and is arranged on base
With one to two milling head；In the case where two milling heads are provided with, the first milling head is provided with double wedge face milling cutters and first
Milling cutter motor, connects between double wedge face milling cutters and the first milling cutter motor；Second milling head is provided with concave tooth face milling cutters
With the second milling cutter motor, connect between concave tooth face milling cutters and the second milling cutter motor；Rotary table, and/or the first milling
Head and the second milling head are arranged on base in the way of it can slide on the table top of base；First milling head and the second milling
Head is located at turn around the homonymy of platform, and the side that the blade of double wedge face milling cutters and concave tooth face milling cutters is located towards rotary table；
In the case where a milling head is provided with, process equipment includes base and the rotary table being arranged on base, and
And be further provided with the tool magazine of milling cutter is changed 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 under the driving of motor after being arranged on the milling head, and blade direction is returned
The side that turntable is located；At least one of the milling head and rotary table are installed in the way of it can slide 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
Rotate from the center of circle for axle；
Rotary table is provided with gear blank fixed part and table servo motor, and table servo motor is connected 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 pitch circle pressure angle, knife before milling cutter
Face is design basis 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.
Additionally, 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, to be processed gear double wedge exterior feature radius, m is module to Re.
On the other hand, the outer edge of concave tooth face milling cutters is cutter-edge formation, and the pitch diameter 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, to be processed gear concave tooth exterior feature radius, m is module to Ri.
In one embodiment, the double wedge face milling cutters, at double wedge line milling cutter pitch circle, width Be meets following condition：
For concave tooth face milling cutters, at concave tooth line milling cutter pitch circle, width Bi meets following condition：
Wherein, to be processed gear double wedge exterior feature radius, to be processed gear concave tooth exterior feature radius, m is module to Ri to Re.
Additionally, each blade of double wedge face milling cutters and concave tooth face milling cutters passes through wedge briquetting and screw is arranged on cutterhead.
Additionally, rotary table is arranged on cross slid platform, cross slid platform is installed on the first slide rail arranged on base, rotary table
On the second slide rail of cross slid platform, the first slide rail is extended in a first direction, and the second slide rail extends in a second direction, and first
Direction is vertical with second direction.
Additionally, each milling in the case where two milling heads are provided with, in the first milling head and the second milling head
Head is arranged on independent slide unit in the way of it can move, and each slide unit is arranged on the slide rail of base.
Additionally, in the case where two milling heads are provided with, the rotary shaft of double wedge face milling cutters and concave tooth face milling cutters is put down each other
OK.
Additionally, gear blank fixed position is at the top of rotary table, the table top of the rotary shaft of gear blank fixed part perpendicular to base；Revolution
Platform is provided with sensor, carries out feedback compensation for the rotating accuracy to gear blank fixed part.
Additionally, the process equipment be numerical control device, the slip of rotary table and/or milling head on the table top of base and
The rotation of gear blank fixed part is closed loop control.
This utility model arranges single or two milling heads by the homonymy in rotary table, fixes milling cutter, be on milling head
How milling cutter is installed there is provided solution, also, as milling cutter is made up of multiple blades of cutterhead and projection, so milling cutter knot
Structure is simple, and manufacturing cost is relatively low；As principal cutting movement of the milling cutter in processing is rotated with the cutterhead center of circle as axle, institute
It is relatively simple with its action, stock-removing efficiency can be effectively improved by increasing speed；In addition, this utility model is rotated by cutterhead
Mode be processed, the radian of tooth trace depends on the diameter of milling cutter body, compared to big radius of turn is adopted in conventional art
The method that is processed of blade, this utility model can process that camber line is longer, the curved tooth line gear that radian becomes apparent from, have
Help play the various advantages of curved tooth line gear；In addition, this utility model can be separately provided on two milling heads
The milling cutter of two kinds of flank of tooth of processing, can the cutting in gear blank after being successively processed to all of tooth by two kinds of different milling cutters
Go out the tooth trace of arc, eliminate tool changing operation in process, further increase working (machining) efficiency；In addition, this utility model
Single milling head can also be only set, the processing of two kinds of flank of tooth is completed by tool changing, can so reduce the volume of equipment, drop
The cost of low process equipment.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is the top view of the process equipment of the curved tooth line gear according to this utility model embodiment；
Fig. 2 is the side view of the process equipment of the curved tooth line gear according to this utility model embodiment；
Fig. 3 a to Fig. 3 d are the structure charts of the adopted milling cutter of process equipment according to this utility model embodiment；
Fig. 4 a and 4b are that the double wedge face milling cutters of the process equipment according to this utility model embodiment are processed to gear blank
Schematic diagram；
Fig. 5 a and Fig. 5 b are that the concave tooth face milling cutters of the process equipment according to this utility model embodiment are processed to gear blank
Schematic diagram；
Fig. 6 is the arcuate tooth trace cylindrical gear processed according to the process equipment of this utility model embodiment along pitch cylinder
Flank profil 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；Front milling head 33；Front milling head slide unit 34；Front column 35；Rotary 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.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate this utility model, but is not limited to scope of the present utility model.
According to embodiment of the present utility model, there is provided a kind of process equipment of curved tooth line gear.
As shown in figure 1, can be numerical control device according to the process equipment of the curved tooth line gear of this utility model embodiment, its
Including：Base 1, and be arranged on base the first milling head 2, the second milling head 3, and rotary table 4.
Wherein, the first milling head 2 is provided with double wedge face milling cutters 21 and the first milling cutter motor 22 (is referred to as milling head
Case motor), it is connected between double wedge face milling cutters 21 and the first milling cutter motor 22.Second milling head 3 is then provided with concave tooth
Face milling cutters 31 and the second milling cutter motor 32, are connected between concave tooth face milling cutters 31 and the second milling cutter motor 32.
In one contrary embodiment, the installation site of double wedge face milling cutters and concave tooth face milling cutters can be exchanged, that is to say, that the first milling
Concave tooth face milling cutters can be set on 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, is connected to double wedge face milling cutters 21 and the first milling cutter drives
Between galvanic electricity machine 22, and the power that transmission is 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, double wedge face milling cutters 21 are installed and milling head box 23, and milling head box 23 is solid
It is scheduled on the slide plate of rear milling head slide unit 24, upper-lower height can be manually adjusted, to adapt to process the Gear Processing of differing heights.
In one embodiment, the structure of the second milling head 3 can be identical with 2 correspondence of the first milling head, both difference
It is that the flank of tooth processed by milling cutter is different.Specifically, the second milling head 3 can include milling head box 33, be connected to concave tooth facing cut
Between knife 31 and the second milling cutter motor 32, and the power that transmission is 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, concave tooth face milling cutters 31 are installed and front milling head 33, and front milling head 33 is fixed on front milling
On the slide plate of head slide unit 34, upper-lower height can be manually adjusted, to adapt to process the Gear Processing of differing heights.
In one embodiment, above-mentioned first milling cutter motor 22 and the second milling cutter motor can be frequency conversion motors
(servomotor).
Referring to Fig. 2, rotary 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 at the top of platform 4, gear blank
Table top of the rotary shaft of fixed part 41 perpendicular to rotary table.In order to ensure that the first milling head and the second milling head can be to returning
On turntable 4, fixed gear blank 8 is processed, and rotary table 4, and/or the first milling head 2 and the second milling head 3 are with can be in base 1
Table top on the mode slided be arranged on base 1, so that rotary table 4 can be relative to the first milling head 2 and the second milling
Cut 3 motion.
As shown in figure 1, in one embodiment, rotary table 4 is fixed on cross slid platform 5, and cross slid platform 5 is installed on bottom
The first slide rail 11 arranged on seat 1, rotary 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 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 rotary 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 the rotary table 4 can be in the station corresponding to the first milling head 2 and the second milling head institute
Move 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 rotary table 4 to move 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 motor 42 drive the motion for gear compound graduation being processed to next teeth groove.Moreover, in double wedge face milling cutters and concave tooth facing cut
When single tooth is processed, table servo motor 42 is additionally operable to the generating motion for coordinating X that flank profil is realized to slide unit servomotor 6 to knife.
In the course of processing is transformed into, table servo motor 42 drives the gear blank 8 of rotary table 4 to rotate, and now X is driven to slide unit servomotor 6
Dynamic rotary table 4 along rotary table 4 rotate it is tangential move in X-direction, wherein, by plus gear blank pitch circle linear velocity Vw=tooth bar section
Linear velocity Vx of line.In one embodiment, rotary table main shaft dress can have high accuracy circular grating, and rotary table rotating accuracy is entered
Row feedback compensation, belongs to closed-loop digital control.
In process, X gear blanks 8 to slide unit servomotor 6 by rotary table and thereon can be first passed through and is moved to
Station corresponding to one milling head 2, after all convex sides are processed, by X to slide unit servomotor 6 by rotary table and thereon
Gear blank 8 be moved to 3 corresponding station of the second milling head, process all of concave tooth face, so as to complete to processing with teeth.Or
Person, it is also possible to first process all concave tooth faces, reprocess all convex sides afterwards.
In one embodiment, X can be by servo to the displacement accuracy of slide unit servomotor 6 and Y-direction slide unit servomotor 7
Motor driven ball screws ensure that the rotation of rotary table 4 drives worm and wormwheel to realize by servomotor.
So, relative motion of the rotary table relative to the first and second milling heads is capable of achieving 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, and steady quality, production efficiency are high；
(3) each numerical control coordinate axess adopt closed loop control, and kinematic accuracy is high；
(4) by means of numerical control device, whole process full-digital control, high degree of automation, artifact is to adding
Work affects little, saves artificial to knife, and operation is simpler, and precision is higher (to be compared traditional diamond-making technique and improve one or more essences
Degree grade).
In other embodiments, rotary table 4 can fixedly mount with base 1, now, the first milling head 2 and the second milling
Cut each milling head in 3 to be arranged on independent slide unit in the way of it can move, each slide unit is installed in bottom
On the slide rail of seat 1；Or, rotary table 4, the first milling head 2 and the second milling head 3 are arranged on independent in the way of it can move
Slide unit on；Or, rotary table 4 and the first milling head 2 are arranged on slide unit so as to move on base 1, and the second milling
Cut 3 to be fixedly mounted on base 1.In these embodiments, the structure of adopted slide unit can be slided with the cross shown in Fig. 1
The structure of platform 5 is similar to, or other kinds of slide unit, the motion of even other forms can also be adopted to connect to realize rotary table
4 and 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 side that the blade of knife 21 and concave tooth face milling cutters 31 is located towards rotary table 4, that is to say, that in the Y direction, rotary table 4
In the first milling head 2 and the left side of the second milling head 3, now, the blade of double wedge face milling cutters 21 and concave tooth face milling cutters 31 is along Y side
To the side being located towards rotary table, i.e. put down towards the rotary shaft in left side, double wedge face milling cutters 21 and concave tooth face milling cutters 31 each other
OK.
Additionally, Fig. 3 a show the general configuration (structure of concave tooth face milling cutters 31 is similar to therewith) of double wedge face milling cutters 21.From
As can be seen that the cutterhead 211 of double wedge face milling cutters is circle in figure, multiple blades 212 are uniformly distributed thereon.Shown by Fig. 3 a
Embodiment in, each blade 212 of double wedge face milling cutters 21 is fixed on cutterhead 211 by corresponding wedge briquetting and screw
(similarly, 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
On).By this fixed form so that each blade of double wedge face milling cutters and concave tooth face milling cutters can be dismantled and more respectively
Change, be easy to safeguard, and reduce cost.
In one embodiment, double wedge face milling cutters can be connected with main shaft by the fixing hole 213 that cutterhead middle position is arranged
Connect.Similarly, the cutterhead central authorities 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.
Blade with reference to shown in Fig. 3 b, the mentality of designing of arcuate tooth trace cylindrical gear milling cutter are as follows：
(1) arcuate tooth trace cylindrical gear needs two or more cutterhead just complete processing at least needs to design a double wedge line milling
Cutterhead and a concave tooth line facing cutter；
(2) with gear compound graduation garden (pitch circle) place's arc radius as milling cutter design basis；
(3) milling cutter tooth form half-angle is equal to pitch circle pressure angle；
(4) milling cutter rake face is design basis 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, at facewidth milling cutter pitch circle, width takes Be；When shown in Fig. 3 b
When blade is used for concave tooth face milling cutters, at milling cutter pitch circle, width takes Bi.The definition of Be and Bi and value are as shown in table 2 below：
Table 2
Fig. 3 c are the structure charts of the adopted double wedge face milling cutters of equipment according to this utility model embodiment.As shown in Figure 3 c,
The pitch diameter of double wedge face milling cutters 21 is 2Re.In one embodiment, the milling cutter rake face of blade with the distance on blade top is
1.25m, and the pitch diameter of outer edge is less than 2Re+ π m.Wherein, Re is the double wedge exterior feature pitch radius for being processed gear blank, and m is gear die
Number.
As shown in fig. 4 a, when being cut, double wedge face milling cutters 21 are rotated by axle of its center of circle, while gear blank 8 can phase
For double wedge face milling cutters 21 carry out the relative motion of Y-direction, as multiple blades are moved with arc-shaped track, along gear blank 8
Radially cut, after cutting depth reaches, turntable rotate and X-direction movement be Vw=Vx complete a flank of tooth transform into processing.I.e.
Machinable obtains the convex side in figure shown in dotted line.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 of the adopted concave tooth face milling cutters of equipment according to this utility model embodiment.As shown in Figure 3 d,
The pitch diameter of concave tooth face milling cutters 31 is 2Ri, and the pitch diameter of flank edge inboard is more than 2Ri- π m.In one embodiment, before the milling cutter of blade
Knife face is 1.25m with the distance on blade top.Wherein, Ri is the concave tooth exterior feature pitch 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 same with its center of circle
Rotate 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 the radial direction along gear blank 8 is cut, and after cutting depth is reached, turntable is rotated and X-direction movement is Vw=Vx
Complete a flank of tooth transforms into processing.That is machinable obtains the concave tooth face in figure shown in dotted line.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, forming and cutting sword (cutter-edge formation) is for processing
When cut the generating formed gear flank of tooth, auxiliary knife edge be used for 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 of processed gear concave tooth exterior feature radius Ri is Ri as little as possible, to increase the overlap system of gear engagement
Number.Minimum Ri should meet 2Ri ＞ b, and wherein b is 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
Need to ensure that a composing type cutting-edge is correct, when other (N-1) group cutting edges are to aid in cutting edge so that knife cutting is processed
Uniform force is laborsaving, but must assure that all cutting edges are all such as being schemed within the scope of Bi, Be.
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 tooth bar, i.e.,
The pitch cylinder of arcuate tooth trace cylindrical gear carries out pure rolling with the pitch plane of curved tooth line tooth bar.Therefore, the utility model proposes
The design principle of arcuate tooth trace cylindrical gear milling cutter, is exactly the flank profil profile stretch-out view according to arcuate tooth trace cylindrical gear along pitch cylinder
To determine relative dimensions of the arcuate tooth trace cylindrical gear milling cutter in pitch plane.Fig. 6 is the processing according to this utility model embodiment
Flank profil profile stretch-out view of the arcuate tooth trace cylindrical gear processed by equipment along pitch cylinder.In figure 6, the wide arc radius of double wedge
For Re, the wide arc radius of concave tooth are Ri, and the facewidth is b.In one embodiment, it is the contact rate that improves gear pair, Ri is bigger
In Re.
Described above is the technical scheme and embodiment that two milling heads are arranged on base 1.In fact, on base
One milling head only can also be set.Now, tool magazine is further provided with according to process equipment of the present utility model, can in tool magazine
To deposit milling cutter, for example, in tool magazine, open ended milling cutter includes double wedge face milling cutters and concave tooth face milling cutters, will according to technological process
Ask, tool changing can be carried out to single milling head, so that double wedge face milling cutters or concave tooth face milling cutters are installed 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 rotary table institute
Side.
In the only scheme comprising single milling head, the convex side to curved tooth line gear and concave tooth face is needed to carry out successively adding
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
Concave tooth face milling cutters are changed and install, to process all of concave tooth face.Or, it is also possible to concave tooth face milling cutters are first installed all to process
Concave tooth face, change double wedge face milling cutters afterwards again to process all of convex side.
In the scheme that single milling head is only set, the shape of double wedge face milling cutters and concave tooth face milling cutters, structure and parameter,
The structure of rotary table and control, and the slip of milling head and/or rotary table on base etc., equally may refer to hereinbefore pin
The description done by milling cutter used in double milling heads scheme.Here repeat no more.
In sum, by means of the technical solution of the utility model, by the side of rotary table arrange single milling head,
Or in homonymy two milling heads of setting of rotary table, milling cutter is fixed on milling head, is how milling cutter and gear blank fixedly mount and carry
Supplied solution, and as milling cutter is made up of multiple blades of cutterhead and projection, so its simple structure, manufacturing cost compared with
It is low, it is conveniently replaceable and safeguards；As principal cutting movement of the milling cutter in processing is rotated with the cutterhead center of circle as axle, its action
It is relatively simple, can not only effectively cut, and stock-removing efficiency can be effectively improved by increasing speed；In addition, this practicality is new
Type can be separately provided for the milling cutter for processing two kinds of flank of tooth on two milling heads, successively right by two kinds of different milling cutters
All of tooth be processed after by the tooth trace of arc is cut in gear blank, eliminate tool changing operation in process, enter
One step improves working (machining) efficiency；In addition, this utility model can also only arrange single milling head, two kinds of teeth are completed by tool changing
The processing in face, can so reduce the volume of equipment, reduce the cost of process equipment.
Adopt the utility model proposes scheme after, due to cutterhead diameter affect curved tooth line radian, it is possible to
Make that the curved tooth line for processing gear is longer, radian becomes apparent from, and makes touch strength of gear and bending strength bigger, so as to as far as possible
Play the various premium properties of curved tooth line Cylindrical gears transmission.For example, the gear processed by method of the present utility model can reach
Arrive：Facewidth b reaches 2 or so with the ratio (b/Re and b/Ri) of indexing Yuan Chu gardens arc radius R (Re/Ri).And in routine techniquess
The b/R maximums 0.2 of processed gear, its radian very not substantially, therefore can not give play to the various of curved tooth line gear
Advantage, this utility model solve this problem well.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of process equipment of curved tooth line gear, it is characterised in that include：
Base (1), and the rotary table (4) that is 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
Connect 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 rotary 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 rotary 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 that rotary table (4) is located；
In the case where a milling head is provided with, the process equipment includes base (1) and is arranged on the base (1)
Rotary table, and be further provided with the tool magazine of milling cutter is changed for the milling head, the milling cutter include 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 on the milling head
Drive lower rotation, and the side that blade is located towards the rotary table (4)；In the milling head and the rotary table (4) extremely
It is one of few to be arranged on the base (1) in the way of it slide on the table top of 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) is rotated by axle of the respective center of circle under the driving of motor；
The rotary 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 drive 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 pitch circle pressure angle, and milling cutter rake face is measuring 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 molding
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, to be processed gear double wedge exterior feature radius, m is module to Re；
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, to be processed gear concave tooth exterior feature radius, m is gear die to Ri
Number.
4. process equipment according to claim 1, it is characterised in that for the double wedge face milling cutters, double wedge line milling cutter section
At circle, width Be meets following condition：
For the concave tooth face milling cutters, at concave tooth line milling cutter pitch circle, width Bi meets following condition：
Wherein, to be processed gear double wedge exterior feature radius, to be processed gear concave tooth exterior feature radius, m is module to Ri to Re.
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) passes through wedge briquetting and screw is arranged on cutterhead.
6. process equipment according to claim 1, it is characterised in that the rotary table (4) is installed in cross slid platform (5)
On, the cross slid platform (5) is installed on the first slide rail (11) arrange on the base (1), and the rotary table (4) is installed in institute
State on 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 in the case where two milling heads are provided with, described
Each milling head in first milling head (2) and second milling head (3) is arranged on independent in the way 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 in the case where two milling heads are provided with, described
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 positioned at the rotary table
(4) at the top of, the table top of the rotary shaft of the gear blank fixed part (41) perpendicular to the base (1)；
The rotary 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 is set for numerical control
It is standby, the rotary table (4) and/or slip of the milling head on the table top of the base (1) and the gear blank fixed part (41)
Rotation be closed loop control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742204.7U CN206047261U (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742204.7U CN206047261U (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
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| Publication Number | Publication Date |
|---|---|
| CN206047261U true CN206047261U (en) | 2017-03-29 |
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ID=58377225
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620742204.7U Expired - Fee Related CN206047261U (en) | 2016-07-14 | 2016-07-14 | The process equipment of curved tooth line gear |
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| Country | Link |
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| CN (1) | CN206047261U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107175372A (en) * | 2017-06-14 | 2017-09-19 | 河南科技大学 | A kind of spiral bevel gear double tooth gear milling machine |
| CN107617796A (en) * | 2016-07-14 | 2018-01-23 | 方年学 | The process equipment of curved tooth line gear |
| CN108311742A (en) * | 2018-04-10 | 2018-07-24 | 靖江市恒大汽车部件制造有限公司 | Brake-shoe milling holes end surface special machine |
| CN112122715A (en) * | 2020-09-30 | 2020-12-25 | 扬州大学 | Drum-type processing device for elliptic arc-tooth-trace cylindrical gear |
-
2016
- 2016-07-14 CN CN201620742204.7U patent/CN206047261U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617796A (en) * | 2016-07-14 | 2018-01-23 | 方年学 | The process equipment of curved tooth line gear |
| CN107175372A (en) * | 2017-06-14 | 2017-09-19 | 河南科技大学 | A kind of spiral bevel gear double tooth gear milling machine |
| CN107175372B (en) * | 2017-06-14 | 2019-04-09 | 河南科技大学 | A kind of spiral bevel gear double-station tooth gear milling machine |
| CN108311742A (en) * | 2018-04-10 | 2018-07-24 | 靖江市恒大汽车部件制造有限公司 | Brake-shoe milling holes end surface special machine |
| CN112122715A (en) * | 2020-09-30 | 2020-12-25 | 扬州大学 | Drum-type processing device for elliptic arc-tooth-trace cylindrical gear |
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