CN103447628A - Numerical control hobbing method for five-axis linkage oblique tooth non-circular gear - Google Patents
Numerical control hobbing method for five-axis linkage oblique tooth non-circular gear Download PDFInfo
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Abstract
The invention relates to a numerical control hobbing method for a five-axis linkage oblique tooth non-circular gear, which comprises the following steps that a gear blank takes the revolution motion around a Z axis; a hob takes the rotary motion around an axis of the hob; a working table takes the relative translation motion along rotation of a non-circular gear blank along a Y0 direction; a hobbing head takes the relative translation motion along an X0 direction when the gear blank rotates; the hobbing head takes the axial feeding motion along the gear blank, wherein the revolution motion of the gear blank or the rotary motion of the hob comprises additional motion caused by the axial feeding motion of the hobbing head along the gear blank, the working table of the gear blank and the hobbing head can also take the relative feeding motion along the Y0 direction, and the relative feeding motion can be determined in advance by regulating the feed rate of the working table or the hobbing head along the Y0 direction and is kept unchanged in the process of feeding processing every time. According to the invention, hobbing on the convex segment curve oblique tooth non-circular gear is implemented, so that processing accuracy and production efficiency of the convex segment curve oblique tooth non-circular gear are greatly improved and effective service life of the hob can be prolonged, and thus, manufacturing cost is reduced.
Description
Technical field
The invention belongs to helical teeth noncircular gear machining technical field, particularly relate to a kind of numerical control hobbing method for processing of five-axle linkage helical teeth non-circular gear.
Background technology
Non-round helical gear with protruding pitch curve is a kind of of non-circular gear.As variable transmission mechanism, the kind of non-circular gear is more, complex-shaped, and this brings certain difficulty to manufacture.Comparative maturity is straight-tooth noncircular gear machining method at present, mainly contains following several:
1. pattern method.This processing method has guaranteed that cutter is under the condition of at the uniform velocity rotation, the instantaneous linear velocity of every bit on the wheel blank pitch curve in working angles equates, thereby the instantaneous angular velocity of wheel blank and the centre-to-centre spacing of wheel blank and non-circle roller all changed according to certain rules.Adopt this method, should produce in advance corresponding cam as pattern, or process non-circular gear with non-circular gear itself as pattern.
2. be similar to the cutting method.In the starting stage of non-circular gear development, Numeric Control Technology also is not used widely, and the output of non-circular gear is less, is not suitable for designing a special processing equipment.In this case, normally on universal device, with approximate cutting method processing non-circular gear.But the machining accuracy of this method is not high, profile of tooth is also inaccurate.
3. process non-circular gear on Digit Control Machine Tool, but, due to not efficient, accurate processing method, affected promoting the use of of non-circular gear.The main processing mode of straight-tooth non-circular gear has numerical control gear shaping, numerical control gear milling, numerical control gear hobbing at present.
4. what current domestic processing non-circular gear was most widely used is the line cutting, and this kind of method relatively is applicable to small lot batch manufacture straight-tooth non-circular gear.But line cuts inapplicable processing helical teeth non-circular gear.
Yet, popularization along with the non-circular gear application, the demand of non-circular gear is also increasing, particularly along with raising and the development of Numeric Control Technology and servomotor performance, the numerical control gear hobbing machining tool that the helical teeth non-circular gear that makes development to process to have good transmission performance particularly has the helical teeth non-circular gear of protruding pitch curve becomes possibility.
The helical teeth elliptic gear is the typical helical teeth non-circular gear with protruding pitch curve, it is that the teeth directional line at pitch curve place is the space generalized helix of cluster isoperimetric pitch on the bent cylinder of oval knot that the bent cylinder of the joint of its flank profil cuts shape, and it is the identical equidistant skew lines in inclination angle on the bent cylinder plane outspread drawing of oval knot.Therefore, the helical teeth elliptic gear is end face or the normal pitch profile difference of each gear teeth not only, and the same gear teeth are not identical along arbitrary end face or the normal pitch profile of facewidth direction yet.This flank profil space curved surface characteristic that not only had been different from cylindric spiral gear but also had been different from oval spur gear just, make to take the machining of the protruding pitch curve helical teeth non-circular gear that the helical teeth elliptic gear is Typical Representative not obtain so far effective breakthrough.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of numerical control hobbing method for processing of five-axle linkage helical teeth non-circular gear, and in working angles, hobboing cutter remains that the helical teeth non-circular gear uniform precision obtained after constant speed, basic permanent power, processing is consistent.
The technical solution adopted for the present invention to solve the technical problems is: a kind of numerical control hobbing method for processing of five-axle linkage helical teeth non-circular gear is provided, and step is as follows:
A, hobboing cutter are driven with permanent rotating speed by the hobboing cutter drive motors, and described hobboing cutter drive motors is with photoelectric encoder, and described hobboing cutter drive motors is by sending interlock signal controlling hobboing cutter, make to become the pure rolling relation between the projection rack and pinion base of hobboing cutter;
The displacement that during the corresponding nodel line gear motion of projection rack and pinion of B, hobboing cutter, every step-length moves equates, and the hobboing cutter cutting power keeps the firm power state;
C, hobboing cutter remain constant along certain fixing point on the Equivalent rack nodel line of tooth base axis projection with the corresponding meshing point relative position of protruding pitch curve of helical teeth non-circular gear, and hobboing cutter is followed all the time the meshing point motion in working angles;
D, when hobboing cutter during not along the axially-movable of tooth base, at this moment the cutting movement of hobboing cutter is four-axle linked;
E, when hobboing cutter has along tooth base axial feed, at this moment the cutting movement of hobboing cutter is five-axle linkage;
F, repetition above-mentioned steps are carried out rolling cut processing along tooth base circumference, and iterative cycles is processed until whole helical teeth noncircular gear machining is complete in this way;
In described step D, the established angle of hob head is harmonized and is got well and immobilize in advance, and remains unchanged in the process of each feed processing.
Four-axle linkedly in described step D be: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from axle rotatablely move and hobboing cutter and tooth base along X
0axle is done the relative translation campaign.
In described step e, five-axle linkage is: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from the rotatablely moving of axle, hobboing cutter and tooth base along X
0axle is done the axial relative motion of relative translation campaign and hobboing cutter and tooth base.
After completing described step e, at hobboing cutter, along the complete Zhou Houneng of tooth base gear hobbing, with tooth base side, obtaining neat cut channel, cut channel machining accuracy on tooth base end face parallel surface is consistent.
In described step e, hobboing cutter is added on the tooth base along the caused additional movement of tooth base axially-movable, hobboing cutter still remain a constant speed the motion constant.
In described step e, hobboing cutter is added on hobboing cutter along the caused additional movement of tooth base axially-movable, and hobboing cutter has the additional motion of a basis feed vertically.
Described hobboing cutter length of cut is greater than 4 tooth pitches.
Described hobboing cutter length of cut is 5 tooth pitches.
Described hobboing cutter remains that uniform motion includes hobboing cutter and has along tooth base axial feed with not along two kinds of situations of tooth base axial feed, if still remain a constant speed while making hobboing cutter along tooth base axial feed, moves because the caused additional movement of downfeed moving will be superimposed upon on the tooth base.
In described step e, the hobboing cutter feed campaign axial along the tooth base is relative motion, and its feed has been cut the helical teeth non-circular gear at hobboing cutter at every turn and carried out after one week, the depth of cut according to actual machining accuracy and the arc length such as processing technology is determined according to the interaction relation calculative determination.
Described hobboing cutter during along the circumference cutting movement after tooth base axial feed, notice that corresponding tooth base building up by welding starting point changes, to using this time this as etc. the new starting point calculated of arc length calculate corresponding each universal driving shaft displacement data.
Beneficial effect
The present invention guarantees that in working angles, hobboing cutter can obtain the helical teeth non-circular gear of machining accuracy uniformity and hobboing cutter length is not had to special requirement after waiting all the time rotating speed, basic permanent power cutting, processing.This method not only can accurately be processed and be take the helical teeth non-circular gear of the protruding pitch curve that the helical teeth elliptic gear is representative, can also accurately process protruding pitch curve straight-tooth non-circular gear, can greatly improve the non-round spur gear of protruding pitch curve or helical gear machining accuracy and production efficiency, and can extend service life of hobboing cutter, guarantee the quality of helical teeth non-circular gear gear hobbing processing.
The accompanying drawing explanation
Fig. 1 is digital control system schematic diagram of the present invention.
Fig. 2 is the applicable five-axle linkage non-circular gear base end face movement relation analysis chart of the present invention.
Fig. 3 is right-hand hob of the present invention hobboing cutter pitch cylinder and the public tangent plane movement relation of the protruding pitch surface of helical teeth non-circular gear figure while processing left-handed helical teeth non-circular gear.
Hobboing cutter pitch cylinder and the public tangent plane movement relation of the protruding pitch surface of helical teeth non-circular gear figure when Fig. 4 is right-hand hob processing dextrorotation helical teeth non-circular gear of the present invention.
Hobboing cutter pitch cylinder and the public tangent plane movement relation of the protruding pitch surface of helical teeth non-circular gear figure when Fig. 5 is lefthand hob processing dextrorotation helical teeth non-circular gear of the present invention.
Fig. 6 is lefthand hob of the present invention hobboing cutter pitch cylinder and the public tangent plane movement relation of the protruding pitch surface of helical teeth non-circular gear figure while processing left-handed helical teeth non-circular gear.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only are not used in and limit the scope of the invention for the present invention is described.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Fig. 1 to 5, a kind of numerical control hobbing method for processing of five-axle linkage helical teeth non-circular gear, step is as follows:
A, hobboing cutter are driven with permanent rotating speed by the hobboing cutter drive motors, and described hobboing cutter drive motors is with photoelectric encoder, and described hobboing cutter drive motors is by sending interlock signal controlling hobboing cutter, make to become the pure rolling relation between the projection rack and pinion base of hobboing cutter;
The displacement that during the corresponding nodel line gear motion of projection rack and pinion of B, hobboing cutter, every step-length moves equates, and the hobboing cutter cutting power keeps the firm power state;
C, hobboing cutter remain constant along certain fixing point on the Equivalent rack nodel line of tooth base axis projection with the corresponding meshing point relative position of protruding pitch curve of helical teeth non-circular gear, and hobboing cutter is followed all the time the meshing point motion in working angles;
D, when hobboing cutter during not along the axially-movable of tooth base, at this moment the cutting movement of hobboing cutter is four-axle linked;
E, when hobboing cutter has along tooth base axial feed, at this moment the cutting movement of hobboing cutter is five-axle linkage;
F, repetition above-mentioned steps are carried out rolling cut processing along tooth base circumference, and iterative cycles is processed until whole helical teeth noncircular gear machining is complete in this way;
In described step D, the established angle of hob head is harmonized and is got well and immobilize in advance, and remains unchanged in the process of each feed processing.
Four-axle linkedly in described step D be: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from axle rotatablely move and hobboing cutter and tooth base along X
0axle is done the relative translation campaign.
In described step e, five-axle linkage is: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from the rotatablely moving of axle, hobboing cutter and tooth base along X
0axle is done the axial relative motion of relative translation campaign and hobboing cutter and tooth base.
After completing described step e, at hobboing cutter, along the complete Zhou Houneng of tooth base gear hobbing, with tooth base side, obtaining neat cut channel, cut channel machining accuracy on tooth base end face parallel surface is consistent.
In described step e, hobboing cutter is added on the tooth base along the caused additional movement of tooth base axially-movable, hobboing cutter still remain a constant speed the motion constant.
In described step e, hobboing cutter is added on hobboing cutter along the caused additional movement of tooth base axially-movable, and hobboing cutter has the additional motion of a basis feed vertically.
Described hobboing cutter length of cut is greater than 4 tooth pitches.
Described hobboing cutter length of cut is 5 tooth pitches.
Described hobboing cutter remains that uniform motion includes hobboing cutter and has along tooth base axial feed with not along two kinds of situations of tooth base axial feed, if still remain a constant speed while making hobboing cutter along tooth base axial feed, moves because the caused additional movement of downfeed moving will be superimposed upon on the tooth base.
In described step e, the hobboing cutter feed campaign axial along the tooth base is relative motion, and its feed has been cut the helical teeth non-circular gear at hobboing cutter at every turn and carried out after one week, the depth of cut according to actual machining accuracy and the arc length such as processing technology is determined according to the interaction relation calculative determination.
Described hobboing cutter during along the circumference cutting movement after tooth base axial feed, notice that corresponding tooth base building up by welding starting point changes, to using this time this as etc. the new starting point calculated of arc length calculate corresponding each universal driving shaft displacement data.
Figure 1 shows that the present invention adapts to the digital control system schematic diagram of protruding pitch curve helical teeth non-circular gear numerical control gear hobbing processing, by parts such as workbench, hob head, hobboing cutter, frames, formed, comprise wheel blank around the gyration A of Z axis, hobboing cutter around the B that rotatablely moves from axle, workbench when the non-circular gear base rotates along Y
0to relative translation campaign C, hob head when wheel blank rotates along X
0to relative translation campaign D, hob head along wheel blank axial feed motion E.Above-mentioned five frees degree motion forms strict interaction relation in process, must do constant speed and variable motion according to given rule between each motion, when wherein hobboing cutter is along tooth base axial feed, the gyration AB of wheel blank comprises the additional movement caused along wheel blank axial feed motion D by hob head.In addition, wheel blank workbench and hob head are along Y
0to also having relative in-movement, this motion can be determined by the lateral feed of adjusting workbench or hob head in advance, and remain unchanged in the process of each feed processing.
When protruding pitch curve helical teeth non-circular gear is processed in gear hobbing, need as shown in Figure 1 first to adjust the hobboing cutter established angle, then hobboing cutter and wheel blank are aligned by correspondence position, the displacement that the arc length principle is calculated each universal driving shaft such as then press, in order clearly to describe interaction relation in the 5-shaft linkage numerical control hobbing process, have or not along tooth base axial feed situation and describe respectively each axle interaction relation in hobbing process according to the actual man-hour hobboing cutter of adding here:
1) when hobboing cutter not along the tooth base during axial feed, at this moment five-axle linkage be four-axle linked state: the rotation A of tooth base, hobboing cutter are around the i.e. D that relatively moves along the C that relatively moves, hobboing cutter or the tooth base of Yo axle along the Xo axle of the relative variation of the constant revolution B from axle, hobboing cutter and tooth base centre-to-centre spacing.Because having the feed axial along the tooth base so cutting hobbing working motion at this time, hobboing cutter do not project to the relation that is equivalent to the non-round spur gear Equivalent rack pure rolling of equivalent on tooth base end face parallel surface, rack pinion pure rolling relation principle figure as shown in Figure 2, establish coordinate XOY and coordinate X
2o
2y
2fixed coordinate system, X
1o
1y
1with elliptic gear, connect firmly, ellipse clockwise rotates centered by focus.During initial position, rack cutter is being parallel on fixed coordinate system XOY transverse axis, and its nodel line and oval tooth base pitch curve are tangent, and point of contact is A; Ellipse connects firmly coordinate system abscissa O
1x
1parallel with fixed coordinate system OX axle, when oval tooth base pitch curve by initial position along its center O
1during dextrorotation gyration θ, B point and rack cutter nodel line on the oval knot curve are tangent, and on the rack cutter nodel line, initial points of tangency A moves to an A
2, the B point turns to B
1the point.According to mesh theory, now, straightway B
1a
2the arc length AB equaled on the oval knot curve is L, and the distance that tooth bar moves is Δ x, and in tooth bar and non-circular gear, the variable quantity of distance is Δ y, and μ is non-circular gear utmost point footpath and pitch curve tangent line (projection pitch line) positive direction angle.The transmission principle figure by Fig. 2 has:
Δ
X＝L+r
2cosμ
2-r
1cosμ
1 (3)
Δ
Y＝r
1sinμ
1-r
2sinμ
2 (4)
The arc length principle such as press while calculating, L is a known fixed, and the described hobboing cutter of by specification step C is followed the tracks of all the time rack cutter that meshing point has the hobboing cutter projection or tooth base along the relatively moving of Xo axle, so the right is equivalent to add r in formula 3 in working angles
1cos μ
1-r
2cos μ
2one, so the actual mobile distance of rack cutter is L, due in this formula added with r corresponding in formula 3
2cos μ
2-r
1cos μ
1all the time offset, the displacement that the every step-length of corresponding rack cutter moves is L, so:
The every step-length of corresponding hobboing cutter turns over radian (rad) and is: Δ n=2 Δ L/mt is a fixed value, and in formula, mt is helical teeth non-circular gear transverse module;
Can know φ after tool setting is good
1, according to formula 1) and can obtain φ by numerical method
2value, utilize formula 5 according to the Differential Geometry principle) can obtain corresponding μ
1, μ
2value, thus can obtain the radian that the tooth base turns over according to formula 2;
The relative variation that can obtain hobboing cutter and tooth base centre-to-centre spacing according to formula 4 i.e. relatively moving along the Yo axle;
Hob head when wheel blank rotates along X
0to the relative translation amount of exercise be: r
1cos μ
1-r
2cos μ
2.
The corresponding meshing point of nodel line that first step-length is cut to of only need usining after hobboing cutter has cut a step-length copies above-mentioned mathematical expression can calculate corresponding four-axle linked relation as the starting point of next step-length cutting, Using such method calculates each universal driving shaft displacement of every step-length until hobboing cutter has cut after one week when hobboing cutter starts along tooth base axial feed, is at this moment following 2) the interaction relation state.
2) when hobboing cutter during along tooth base axial feed, at this moment for five-axle linkage: the rotation A of tooth base, hobboing cutter be the i.e. feed E axial along the tooth base along the D that relatively moves, the hobboing cutter of Xo axle along the C that relatively moves, hobboing cutter or the tooth base of Yo axle around the relative variation of the constant revolution B from axle, hobboing cutter and tooth base centre-to-centre spacing.
Still the at the uniform velocity cutting movement state keep there is no axial feed in drilling the axial feed process due to hobboing cutter before, therefore, the additional movement of the caused tooth base of hobboing cutter axially-movable will be superimposed upon on the tooth base, and at this moment the tooth base has an additional movement.Its movement relation is analyzed as shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, is discussed below respectively:
1) Fig. 3 is the situation that right-hand hob is processed left-handed helical teeth non-circular gear axial feed, in this figure, and ω
1, ω
2be respectively the tooth base around the velocity of rotation from axle and hobboing cutter around the rotation from axle, the helical angle that β is gear hobbing processing helical teeth non-circular gear, γ is the hobboing cutter lead angle, α is the hobboing cutter established angle, n-n is hobboing cutter and tooth base meshing spiral line place common normal, O
1-O
1for the non-knuckle-tooth base of helical teeth rotary middle spindle, O
2-O
2for the hobboing cutter rotary middle spindle, some M is the starting point that hobboing cutter is analyzed during along tooth base axial feed.As can be seen from Figure 3, when hobboing cutter be the Sz(mono-axle displacement that links along tooth base axial feed distance, according to manufacturing process determination) time be equivalent to the displacement that tooth base end on projection has turned over St, so total displacement that the tooth base turns over is: S
always=L+St, φ here
1the angle position shown in the end on projection face Fig. 2 of place during along tooth base axial feed for hobboing cutter, this position is known, the S that utilization is tried to achieve above
alwaysaccording to formula 1) can utilize numerical method to obtain the corresponding angle φ of tooth base meshing point
2, according to φ
2, φ
1utilize formula 5) can try to achieve utmost point footpath and oval knot curve tangent line (projection pitch line) positive direction angle μ
1, μ
2value, then according to formula 2) can obtain the angle delta θ (2-axis linkage displacement) that the tooth base turns over, according to formula 4) can obtain hobboing cutter and tooth base centre-to-centre spacing displacement Δ
y(three-shaft displacement amount), according to relational expression r
1cos μ
1-r
2cos μ
2, can obtain the displacement Δ of hobboing cutter along the Xo axle
x(four axial displacement amounts), the hobboing cutter amount of spin is constant is still by the determined definite value of formula Δ n=2 Δ L/mt (five axial displacement amounts), so far, hobboing cutter during along tooth base axial feed each axle motion analysis complete.Figure 4 shows that the situation of right-hand hob processing dextrorotation helical teeth non-circular gear, the analysis during hobboing cutter axial feed, the total displacement turned over except the tooth base is: S
alwaysoutside=L-St, all the other analyses are processed left-handed helical teeth non-circular gear with right-hand hob shown in Fig. 3 and are analyzed identical.Fig. 5, Fig. 6 are respectively the situation that lefthand hob is processed left-handed helical teeth non-circular gear and dextrorotation helical teeth non-circular gear, and its each axle interaction relation can obtain according to the analytical procedure of above-mentioned Fig. 3, Fig. 4 the interaction relation that hobboing cutter axially links along the tooth base.
Above-mentioned five-axle linkage helical teeth non-circular gear numerical control gear hobbing system, hobboing cutter is around rotatablely moving with the tooth base around rotatablely moving as absolute movement from axle from axle, along the axial Zo axle of tooth base feed ,Chi Pi center and hobboing cutter centre-to-centre spacing, along the variation of Yo axle, hobboing cutter and tooth base along the tangential motion of Xo axle, these three kinds of interaction relations are relative motion relation to all the other hobboing cutters, only need that a side of relative motion is moving or two sides are moving all can realize corresponding interaction relation, thereby can reach better processing effect according to the configuration of the rational mechanism of actual gear hobbing Scheme Choice.
Claims (8)
1. the numerical control hobbing method for processing of a five-axle linkage helical teeth non-circular gear, step is as follows:
A, hobboing cutter are driven with permanent rotating speed by the hobboing cutter drive motors, and described hobboing cutter drive motors is with photoelectric encoder, and described hobboing cutter drive motors is by sending interlock signal controlling hobboing cutter, make to become the pure rolling relation between the projection rack and pinion base of hobboing cutter;
The displacement that during the corresponding nodel line gear motion of projection rack and pinion of B, hobboing cutter, every step-length moves equates, and the hobboing cutter cutting power keeps the firm power state;
C, hobboing cutter remain constant along certain fixing point on the Equivalent rack nodel line of tooth base axis projection with the corresponding meshing point relative position of protruding pitch curve of helical teeth non-circular gear, and hobboing cutter is followed all the time the meshing point motion in working angles;
D, when hobboing cutter during not along the axially-movable of tooth base, at this moment the cutting movement of hobboing cutter is four-axle linked;
E, when hobboing cutter has along tooth base axial feed, at this moment the cutting movement of hobboing cutter is five-axle linkage;
F, repetition above-mentioned steps are carried out rolling cut processing along tooth base circumference, and iterative cycles is processed until whole in this way
Till the helical teeth noncircular gear machining is complete;
In described step D, the established angle of hob head is harmonized and is got well and immobilize in advance, and remains unchanged in the process of each feed processing.
2. the numerical control hobbing method for processing of a kind of five-axle linkage helical teeth non-circular gear according to claim 1, is characterized in that, four-axle linkedly in described step D is: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from axle rotatablely move and hobboing cutter and tooth base along X
0axle is done the relative translation campaign.
3. the numerical control hobbing method for processing of a kind of five-axle linkage helical teeth non-circular gear according to claim 1, is characterized in that, in described step e, five-axle linkage is: hobboing cutter is around doing uniform speed rotation, hobboing cutter and tooth base from axle along Y
0axle relative motion, tooth base around from the rotatablely moving of axle, hobboing cutter and tooth base along X
0axle is done the axial relative motion of relative translation campaign and hobboing cutter and tooth base.
4. according to the numerical control hobbing method for processing of claim 1,2 or 3 described a kind of five-axle linkage helical teeth non-circular gears, it is characterized in that, after completing described step e, obtaining neat cut channel along the complete Zhou Houneng of tooth base gear hobbing with tooth base side at hobboing cutter, cut channel machining accuracy on tooth base end face parallel surface is consistent.
5. according to the numerical control hobbing method for processing of claim 1,2 or 3 described a kind of five-axle linkage helical teeth non-circular gears, it is characterized in that, in described step e, hobboing cutter is added on the tooth base along the caused additional movement of tooth base axially-movable, hobboing cutter still remain a constant speed the motion constant.
6. according to the numerical control hobbing method for processing of claim 1,2 or 3 described a kind of five-axle linkage helical teeth non-circular gears, it is characterized in that, in described step e, hobboing cutter is added on hobboing cutter along the caused additional movement of tooth base axially-movable, and hobboing cutter has the additional motion of a basis feed vertically.
7. according to the numerical control hobbing method for processing of claim 1,2 or 3 described a kind of five-axle linkage helical teeth non-circular gears, it is characterized in that, described hobboing cutter length of cut is greater than 4 tooth pitches.
8. the numerical control hobbing method for processing of a kind of five-axle linkage helical teeth non-circular gear according to claim 7, is characterized in that, described hobboing cutter length of cut is 5 tooth pitches.
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| CN 201310360354 CN103447628A (en) | 2013-08-16 | 2013-08-16 | Numerical control hobbing method for five-axis linkage oblique tooth non-circular gear |
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|---|---|---|---|
| CN 201310360354 CN103447628A (en) | 2013-08-16 | 2013-08-16 | Numerical control hobbing method for five-axis linkage oblique tooth non-circular gear |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735601A (en) * | 2016-12-26 | 2017-05-31 | 合肥工业大学 | The processing method that a kind of non-circular gear continuously transforms into gear hobbing |
| CN112241149A (en) * | 2019-07-16 | 2021-01-19 | 上海铼钠克数控科技股份有限公司 | Processing control device and method for numerically-controlled processing of special-shaped lathing |
| CN114433959A (en) * | 2022-01-24 | 2022-05-06 | 浙江陀曼数字技术有限公司 | Sector gear machining method and sector gear |
-
2013
- 2013-08-16 CN CN 201310360354 patent/CN103447628A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735601A (en) * | 2016-12-26 | 2017-05-31 | 合肥工业大学 | The processing method that a kind of non-circular gear continuously transforms into gear hobbing |
| CN106735601B (en) * | 2016-12-26 | 2017-12-01 | 合肥工业大学 | The processing method that a kind of non-circular gear continuously transforms into gear hobbing |
| CN112241149A (en) * | 2019-07-16 | 2021-01-19 | 上海铼钠克数控科技股份有限公司 | Processing control device and method for numerically-controlled processing of special-shaped lathing |
| CN114433959A (en) * | 2022-01-24 | 2022-05-06 | 浙江陀曼数字技术有限公司 | Sector gear machining method and sector gear |
| CN114433959B (en) * | 2022-01-24 | 2023-01-10 | 浙江陀曼数字技术有限公司 | Sector gear machining method and sector gear |
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