CN1077149A - Elliptic gear is shaved, honing principle and lathe thereof - Google Patents

Elliptic gear is shaved, honing principle and lathe thereof Download PDF

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Publication number
CN1077149A
CN1077149A CN 92102483 CN92102483A CN1077149A CN 1077149 A CN1077149 A CN 1077149A CN 92102483 CN92102483 CN 92102483 CN 92102483 A CN92102483 A CN 92102483A CN 1077149 A CN1077149 A CN 1077149A
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China
Prior art keywords
gear
motion
workbench
eccentric wheel
elliptic
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Pending
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CN 92102483
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Chinese (zh)
Inventor
周永生
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周永生
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Priority to CN 92102483 priority Critical patent/CN1077149A/en
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Abstract

The present invention shaves for the fine finishining elliptic gear provides a kind of, the operation principle of gear honing and the transmission system design of special-purpose gear shaving machine and special-purpose gear honing machine thereof.Its main feature is that the main body motion of lathe is revolution motion and the moving identical planetary motion of direction of autorotation, and the angular speed of spinning motion is always 1/2 of revolution motion angular speed, two axis of movements are parallel, the distance between two axis of movements be elliptic gear pitch curve major semiaxis a and semi-minor axis b difference 1/2.The motion of this main body provides condition for realizing an elliptic gear pitch curve and a cylindrical gear cutter pitch curve conjugation free to rotate, thereby also provides condition for the shaving of elliptic gear, plover tooth process.

Description

Elliptic gear is shaved, honing principle and lathe thereof
The invention belongs to the technical field of non-circular gear manufacturing process and Machine Tool design thereof.
With a pair of elliptic gear transmission, can realize the non-linear relation between driving mechanism and follower.Compare with linkage and cam mechanism, it has stable drive, compact conformation again, can realize continuous many advantages such as unidirectional shuttling movement.Therefore, in all kinds of machine driving, be applied just more and more widely.
The elliptic gear of middle and high levels of precision is difficult to make, and fails for a long time to solve well always, has also hindered the application and the development of elliptic gear transmission mechanism largely.Although the development of Digit Control Machine Tool provides condition and example for realizing common hobboing cutter or pinion cutter and elliptic gear pitch curve conjugation.But, still also lack the process and the equipment of elliptic gear precision and flank profil surface roughness behind further raising gear hobbing or the gear shaping.
The objective of the invention is to design the operation principle and the lathe thereof of a kind of shaving and gear honing in order to address the above problem.Utilize this principle and lathe thereof, to behind gear hobbing or gear shaping and the elliptic gear that leaves certain allowance carry out fine finishining, can improve the precision and the flank profil surface roughness of elliptic gear effectively.
Content of the present invention comprises operation principle and the elliptic gear gear shaving machine and the elliptic gear gear honing machine design of Transmission System scheme of elliptic gear shaving and gear honing.
The operation principle of elliptic gear shaving of the present invention or gear honing is:
1, an elliptic gear that leaves shaving or gear honing surplus had not only revolved round the sun in perpendicular to the plane of self axis but also the planetary motion of rotation, and revolution motion is consistent with the direction of spinning motion.
2, revolution motion axis and spinning motion axis are parallel to each other, and the angular speed of the spinning motion distance that is always 1/2, two axis of movement of revolution motion angular speed equal elliptic gear pitch curve major semiaxis a and semi-minor axis b difference 1/2.
3, an elliptic gear and a dish type external toothing gear shaver free to rotate or tooth honing wheel form the helical gear correct engagement of a pair of no sideshake, and make that the tangential direction along helix has relative slip between cutter for gear wheel and elliptic gear mesh tooth face.
4, the elliptic gear central axis is the spinning motion axis.When the working pitch point of elliptic gear and cutter for gear wheel between its spinning motion axis and revolution motion axis on the extension line of short line the time, this working pitch point the major semiaxis (seeing accompanying drawing 1) of elliptic gear pitch curve go up or semi-minor axis (seeing accompanying drawing 2) on.
5, add man-hour, make cutter for gear wheel along workpiece spindle to reciprocating motion is arranged.Along workpiece feed motion is arranged radially or tangentially.
Its main feature of operation principle of elliptic gear shaving of the present invention or gear honing be allow processed elliptic gear in motion process its pitch curve continuously through a fixed point, and make this fixed point become a processed elliptic gear and a dish type external toothing gear shaver free to rotate or tooth honing wheel to form the node of the helical gear correct engagement of a pair of no sideshake, thereby realize the conjugation of processed elliptic gear pitch curve and cutter for gear wheel pitch curve.
Elliptic gear gear shaving machine of the present invention or gear honing machine are by being formed as planetary body, topping machanism and reciprocating mechanism thereof, the cutting feed mechanism of main body motion.
Planetary body as the main body motion can be combined by an eccentric wheel and planetary gear mechanism.Perhaps combine by an eccentric wheel and crosshead shoe epicyclic transmission mechanism.Perhaps combine by an eccentric wheel and pin type epicyclic transmission mechanism.
Accompanying drawing 3 is by eccentric wheel and the combined machine tool transmission system figure that constitutes planetary body of planetary gear mechanism.
The revolution motion drive path of elliptic gear gear shaving machine of the present invention or gear honing machine workbench is: motor (1) is by gear (2), again by worm screw (5), worm gear (6) and axle (7), the eccentric wheel (8) that places workbench (17) center is rotated, so, workbench (17) is made revolution motion under eccentric wheel (8) effect, and eccentric wheel (8) whenever circles, and workbench (17) also public affairs circles.
The spinning motion drive path of elliptic gear gear shaving machine of the present invention or gear honing machine workbench is: when eccentric wheel (8) rotates, just drive a pair of pitch wheel (15) with the crank (13) that eccentric wheel (8) connects firmly mutually, (16) do planetary motion, since gear (16) again with workbench (17) on internal gear engagement, gear (15) meshes with the gear (12) that is fixed on the lathe bed (27) again, therefore, when gear (16) when doing planetary motion, the workbench that is meshed with it (17) is just made spinning motion.When the number of teeth of gear (12) be on the workbench (17) the internal gear number of teeth 1/2, then eccentric wheel (8) whenever circles, workbench (17) is also by equidirectional 1/2 week of rotation.
When adjusting the eccentric throw of eccentric wheel (8), can realize the elliptic gear pitch curve conjugation of cutter for gear wheel and various eccentricities.When adjusting the eccentric throw of eccentric wheel (8), still can mesh simultaneously in order to make gear (15) with gear (12), (16), should adjust axle (14) coordinate position on crank (13).
The topping machanism of elliptic gear gear shaving machine of the present invention or gear honing machine is made up of slide unit (30), knife rest (33), knife bar (34).Cutter for gear wheel (35) is fixed on the knife bar (34), and is meshed with workpiece (36).Knife bar (34) can be gone up around self axis at knife rest (33) and freely rotate.On slide unit (30), connect firmly feed screw nut (32),, can realize that topping machanism does straight reciprocating motion along column (29) upper rail by manual leading screw (31) or under the effect of hydraulic jack (28).
On column (29), connecting firmly feed screw nut (26), by the gear (21) that connects mutually with planetary body, and clutch (22), gear (23), (24), can realize column (29) radially or tangential rectilinear motion, thereby realize that topping machanism along workpiece (36) radially or tangential feed motion along workpiece (36).
Accompanying drawing 4 is by eccentric wheel and the combined structural scheme of mechanism of crosshead shoe planetary body.In this mechanism, (Z 5Z 9Zn)/(Z 4Z 6Z 10)=2 when power by gear (3) when importing into, by gear (4), worm screw (5), worm gear (6) and axle (7), the eccentric wheel (8) that places workbench (17) center is rotated, so workbench (17) is made revolution motion under eccentric wheel (8) effect.Simultaneously, by gear (9), worm screw (10), worm gear (11), by placing the crosshead shoe (18) between worm gear (11) and the workbench (17), make workbench (17) make spinning motion again again.
Accompanying drawing 5 is by eccentric wheel and the combined structural scheme of mechanism of pin type epicyclic transmission mechanism.In this mechanism, (Z 5Z 9Z n)/(Z 4Z 6Z 10)=2, when power when importing into, by gear (4), worm screw (5), worm gear (6) and axle (7), rotates the eccentric wheel (8) that places workbench (17) center by gear (3), so workbench (17) is made revolution motion under eccentric wheel (8) effect.Simultaneously, by gear (9), worm screw (10), worm gear (11),, make workbench (17) make spinning motion again again by the bearing pin (19) that connects firmly mutually with worm gear (11) and can go up the pin sleeve (20) that freely rotate at bearing pin (19).
Elliptic gear gear shaving machine of the present invention or the employed cutter of gear honing machine should be cylindrical external toothing gear shaver and honing gear.When the difference of the major semiaxis of elliptic gear pitch curve and semi-minor axis was big, the pitch circle of cutter and elliptic gear pitch curve had small periodicity interference in conjugation process.Interfere the pitch curve radial error that produces to be:
△≤r(l-cosθ)
In the formula: the pitch radius of r-cutter
θ=arctg k- (π)/2 -φ
φ-workpiece rotation angle
The pitch curve that interference produces radially worst error is:
△max≤r(l-cosθmax)
In the formula:
θ mgx = arct [ - b a · ctg ( arcsin a · b - b 2 a 2 - b 2 ) ] - π 2 - arcsin a · b - b 2 a 2 - b 2
In order to reduce interference, the pitch radius of cutter should be selected smaller as far as possible.For the bigger elliptic gear of difference of machining high-precision level and major semiaxis and semi-minor axis, can consider to adopt the aligning gear of cam or other form to make topping machanism radially or tangentially have small periodicity to move back and forth along workpiece.
When the eccentric throw of eccentric wheel (8) equals zero in elliptic gear gear shaving machine of the present invention and the elliptic gear gear honing machine, also can be used to shave, top gem of a girdle-pendant roller gear.
The main body motion of elliptic gear gear shaving machine of the present invention or gear honing machine can also be applied to the main body motion of numerical control ellipse gear tooth pluging machine or gear-hobbing machine, can make present three axes interlock when adding the formula elliptic gear be reduced to the interlock of two reference axis like this, thereby simplify numerical control device and the numerical computations in the technical process and the programming thereof of lathe with numerical control non-circular gear lathe.
Elliptic gear of the present invention is shaved, the operation principle of gear honing and mechanism thereof can also be applied to all kinds of measuring instruments relevant with ellipse or elliptic gear operation principle and mechanism thereof.As: elliptical orbit somascope, elliptic gear circular pitch somascope, elliptic gear base pitch tester, elliptic gear meshingtester, elliptic gear gear radial runout tester, elliptic gear common normal length change somascope, elliptic gear profile of tooth somascope etc.

Claims (8)

1, a kind ofly shave, the operation principle of top gem of a girdle-pendant elliptic gear is characterized in that:
1.1 a pitch curve that leaves shaving or gear honing allowance had not only revolved round the sun in perpendicular to the plane of self central axis for oval ellipse-circular gear but also the planetary motion of rotation, and revolution motion is consistent with the direction of spinning motion.
1.2 revolution motion axis and spinning motion axis when elliptic gear is done planetary motion are parallel to each other, and the distance that the angular speed of spinning motion is always 1/2, two axis of movement of revolution motion angular speed equal elliptic gear pitch curve major semiaxis a and semi-minor axis b difference 1/2.
1.3 an elliptic gear and a dish type external toothing gear shaver free to rotate or tooth honing wheel form the helical gear correct engagement of a pair of no sideshake, and make that the tangential direction along helix has relative slip between cutter for gear wheel and elliptic gear mesh tooth face.
1.4 the elliptic gear central axis is the spinning motion axis.When the working pitch point of elliptic gear and cutter for gear wheel between its spinning motion axis and revolution motion axis on the extension line of short line the time, this working pitch point should the major semiaxis (node is close with the revolution motion axis) of elliptic gear pitch curve go up or semi-minor axis (node is close with the spinning motion axis) on.
1.5 make cutter for gear wheel reciprocating motion axially be arranged, feed motion radially or tangentially arranged along elliptic gear along elliptic gear.
2, a kind of lathe of processing elliptic gear is made up of principal organ's planetary body, topping machanism and reciprocating mechanism thereof, cutting feed mechanism.It is characterized in that:
2.1 the member of holding workpiece can be realized the planetary motion that revolution motion is consistent with the spinning motion direction in the planetary body under dynamic action, two axis of movements are parallel, and the angular speed of spinning motion is always 1/2 of revolution motion angular speed, and the distance of two axis of movements can be adjusted arbitrarily in the zone of a certain real number zero.
2.2 reciprocating mechanism can realize topping machanism along workpiece spindle to reciprocating motion.
2.3 the cutting feed mechanism can realize that topping machanism along workpiece radially or tangential feed motion.
3, lathe according to claim 2 is characterized in that said planetary body is combined by eccentric wheel (8) and planetary gear mechanism or crosshead shoe epicyclic transmission mechanism or pin type epicyclic transmission mechanism.
4, according to claim 2,3 described a kind of lathes by eccentric wheel (8) and the combined formation planetary body of planetary gear mechanism are by major part motor (1), gear (2), (21), worm screw (5), worm gear (6), axle (7), (14), eccentric wheel (8), gear (12), (15), (16), (23), (24), crank (13), workbench (17), clutch (22), leading screw (25), (31), feed screw nut (26), (32), lathe bed (27), hydraulic jack (28), column (29), slide (30), knife rest (33), knife bar (34) is formed.It is characterized in that:
4.1 motor (1) is by gear (2), again by worm screw (5), worm gear (6) and axle (7), the eccentric wheel (8) that places workbench (17) center is rotated, so, workbench (17) is made revolution motion under eccentric wheel (8) effect, and eccentric wheel (8) whenever circles, and workbench (17) also public affairs circles.
4.2 gear (12) is fixed on the lathe bed, and is meshed with internal gear on the workbench (17) by gear (15), (16).The number of teeth of gear (12) is 1/2 of the last internal gear number of teeth of workbench (17).When eccentric wheel (8) rotates, just do planetary motion in driven gear (15), (16) with the crank (13) that eccentric wheel (8) connects firmly mutually, so workbench (17) is made spinning motion under gear (16) effect.And eccentric wheel (8) whenever circles, and workbench (17) is also by equidirectional 1/2 week of rotation.
4.3 column (29) can be realized under manual or automatic control state along workbench (17) radially and be parallel to the rectilinear motion on workbench (17) plane.
4.4 cutter for gear wheel is installed on the knife bar (34).Knife bar (34) can be gone up around self axis at knife rest (33) and freely rotate.Knife rest (33) is installed on the slide unit (30).Slide unit (30) can realize that under manual or automatic control state topping machanism is along the axial moving linearly of workbench (17).
5, the combined planetary body of eccentric wheel according to claim 3 and crosshead shoe epicyclic transmission mechanism is made up of gear (3), (4), (9), worm screw (5), (10), worm gear (6), (11), axle (7), eccentric wheel (8), workbench (17), crosshead shoe (18).It is characterized in that:
5.1 when power by gear (3) when importing into, by gear (4), worm screw (5), worm gear (6) and axle (7), the eccentric wheel (8) that places workbench (17) center is rotated, so workbench (17) is made revolution motion under eccentric wheel (8) effect.
5.2 when power when importing into, by gear (9), worm screw (10), worm gear (11), by placing the crosshead shoe (18) between worm gear (11) and the workbench (17), makes workbench (17) make spinning motion by gear (3) again.
6, the combined planetary body of eccentric wheel according to claim 3 (8) and pin type epicyclic transmission mechanism is made up of gear (3), (4), (9), worm screw (5), (10), worm gear (6), (11), axle (7), eccentric wheel (8), workbench (17), bearing pin (19), pin sleeve (20).It is characterized in that:
6.1 when power by gear (3) when importing into, by gear (4), worm screw (5), worm gear (6) and axle (7), the eccentric wheel (8) that places workbench (17) center is rotated, so workbench (17) is made revolution motion under eccentric wheel (8) effect.
6.2 when power by gear (3) when importing into, by gear (9), worm screw (10), worm gear (11), by the bearing pin (19) that connects firmly mutually with worm gear (11) and can go up the pin sleeve (20) that freely rotate, make workbench (17) make spinning motion again at bearing pin (19).
7, it is characterized in that can be used as the operation principle and the mechanism thereof of all kinds of measuring instruments relevant with ellipse or elliptic gear according to claim 1,2,3 described operation principles and mechanism thereof.
8, it is characterized in that to be applied to the main body motion of numerical control ellipse gear tooth pluging machine or gear-hobbing machine or gear grinding machines according to claim 2,3,4,5,6 described planetary bodies.
CN 92102483 1992-04-10 1992-04-10 Elliptic gear is shaved, honing principle and lathe thereof Pending CN1077149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92102483 CN1077149A (en) 1992-04-10 1992-04-10 Elliptic gear is shaved, honing principle and lathe thereof

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Application Number Priority Date Filing Date Title
CN 92102483 CN1077149A (en) 1992-04-10 1992-04-10 Elliptic gear is shaved, honing principle and lathe thereof

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1103261C (en) * 1999-10-26 2003-03-19 方毅 Slotting machine of elliptic gear and technology for machining elliptic gear
CN102922051A (en) * 2012-10-19 2013-02-13 安徽工程大学 Constant polar angular speed non-circular bevel gear hobbing method for gear billet
CN102922049A (en) * 2012-10-19 2013-02-13 安徽工程大学 Six-axis five-linkage opposite hobbing method for non-circular gear
CN102990165A (en) * 2011-09-15 2013-03-27 科林基恩伯格股份公司 Semi-completing skiving method and device with skiving tool for performing a semi-completing skiving method
CN103769690A (en) * 2014-01-24 2014-05-07 安徽工程大学 Method for slotting non-circular gear at equal rotating angle relative to gear blank by slotting cutter
CN104889504A (en) * 2015-05-25 2015-09-09 东华大学 Five-axis linkage horizontal type helical tooth non-circular gear hobbing machine tool
CN108581075A (en) * 2018-05-10 2018-09-28 重庆润跃机械有限公司 Processing unit (plant) for gear
CN108581076A (en) * 2018-07-13 2018-09-28 陈芮 A kind of milling device for processing planetary gear
CN112846416A (en) * 2020-12-31 2021-05-28 泰州市特星模具有限公司 Digital intelligent control gear cutting machine
CN113523447A (en) * 2021-07-29 2021-10-22 重庆市旺成科技股份有限公司 Novel vertical gear honing machine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1103261C (en) * 1999-10-26 2003-03-19 方毅 Slotting machine of elliptic gear and technology for machining elliptic gear
CN102990165B (en) * 2011-09-15 2015-06-10 科林基恩伯格股份公司 Semi-completing skiving method and device with skiving tool for performing a semi-completing skiving method
CN102990165A (en) * 2011-09-15 2013-03-27 科林基恩伯格股份公司 Semi-completing skiving method and device with skiving tool for performing a semi-completing skiving method
CN102922049A (en) * 2012-10-19 2013-02-13 安徽工程大学 Six-axis five-linkage opposite hobbing method for non-circular gear
CN102922049B (en) * 2012-10-19 2015-03-04 安徽工程大学 Six-axis five-linkage opposite hobbing method for non-circular gear
CN102922051A (en) * 2012-10-19 2013-02-13 安徽工程大学 Constant polar angular speed non-circular bevel gear hobbing method for gear billet
CN103769690A (en) * 2014-01-24 2014-05-07 安徽工程大学 Method for slotting non-circular gear at equal rotating angle relative to gear blank by slotting cutter
CN104889504A (en) * 2015-05-25 2015-09-09 东华大学 Five-axis linkage horizontal type helical tooth non-circular gear hobbing machine tool
CN108581075A (en) * 2018-05-10 2018-09-28 重庆润跃机械有限公司 Processing unit (plant) for gear
CN108581076A (en) * 2018-07-13 2018-09-28 陈芮 A kind of milling device for processing planetary gear
CN108581076B (en) * 2018-07-13 2020-02-21 温州市加杰传动机械有限公司 Milling equipment for machining planet wheel
CN112846416A (en) * 2020-12-31 2021-05-28 泰州市特星模具有限公司 Digital intelligent control gear cutting machine
CN113523447A (en) * 2021-07-29 2021-10-22 重庆市旺成科技股份有限公司 Novel vertical gear honing machine

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