CN106122412A - A kind of globoid cam indexing means realizing the big number of divisions - Google Patents
A kind of globoid cam indexing means realizing the big number of divisions Download PDFInfo
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- CN106122412A CN106122412A CN201610544632.3A CN201610544632A CN106122412A CN 106122412 A CN106122412 A CN 106122412A CN 201610544632 A CN201610544632 A CN 201610544632A CN 106122412 A CN106122412 A CN 106122412A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
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Abstract
The present invention relates to a kind of globoid cam indexing means realizing the big number of divisions, mainly include indexing case, power shaft, output shaft, the globoid cam body being connected on power shaft, the index dial assembly that is connected on output shaft.Roller axis in index dial assembly all with index dial axes intersect, power shaft and output shaft serrated vertical.Convex ridge on cam body engages with the roller in index dial assembly, convex ridge profile is divided into the first section of resting first section of indexing, second section of resting, second section of indexing four-stage altogether, the helical rib that convex ridge profile is Changeable Lead of two indexing sections, first section of resting is one annulus convex ridge, and second section of resting is twice annulus convex ridges.During cam body rotates a circle, index dial there occurs that twice indexing rotates and twice interval, and each minute of angle of output shaft equal to the half of central angle, the i.e. number of divisions between roller equal to the twice of roller number, need not change the physical dimension of index dial, i.e. can realize the big number of divisions.
Description
Technical field
The present invention relates to a kind of intermittent transmission device, a kind of globoid cam indexing means realizing the big number of divisions,
Belong to field of mechanical technique.
Background technology
Globoid cam indexing means, mainly the index dial by globoid cam body with roller forms, and is promoted by cam
Roller on index dial, the periodic intermittent motion being converted to index dial continuously of cam.Globoid cam indexing means
Because its impact shock is little, smooth running is reliable, has preferable dynamics, is usually used in high-precision indexing mechanism and height
In the automation of speed operating.At present, the Globoidal Indexing Cam Mechanism on market, each time in indexing process, index dial rotates
Angle is equal to roller number equal to the central angle between roller, the i.e. number of divisions.When the number of divisions is the biggest, it is necessary to increase the footpath of clutch plate
Installing all rollers to size, thus make index dial the moment of inertia very big, running speed is very restricted, and power disappears
Consumption is the biggest, and therefore the number of divisions of globoid cam indexing means is not the highest, greatly limit its application scenario.And, for
Traditional Cam indexing device, cam often rotates a circle, and index dial only completes once indexing and once interval.So, for many
The production line of station, cam needs number of revolutions to be equal to roller number, indexes inefficient, have impact on production line speed of production and
Economic benefit.
Summary of the invention
For overcoming prior art not enough, the technical solution used in the present invention is: a kind of of the present invention realizes the big number of divisions
Globoid cam indexing means is mainly made up of indexing case, power shaft, output shaft, globoid cam body, index dial assembly.
Described power shaft and output shaft are interlaced vertically, and cam body is arranged on power shaft by bonded, indexing
Dish assembly is arranged on output shaft by bonded.Described index dial assembly includes index dial and roller, and all rollers is along dividing
Scale circumference is radially the most uniformly connected on index dial, and roller axis all intersects vertically with index dial axis, roller number
Can be even number, it is also possible to for odd number, roller shape can be cylindrical, truncated cone-shaped or circular arc.Power shaft, output shaft, convex
Wheel body, index dial assembly are installed in indexing case.
Described globoid cam body is around one convex ridge of superposition on a revolving body with circular arc as bus, convex ridge
Two side profile surfaces are work surfaces.Described convex ridge profile is divided into four-stage during cam rotates a circle: first rests
Section the first indexing section second section of resting, second section of indexing.The convex ridge profile of two indexing sections is twice Changeable Lead
Helical rib, can be left-handed, it is also possible to dextrorotation, when cam rotates, convex ridge profile promote roller, make index dial indexing divide
Degree.The convex ridge of two sections of resting is all circular convex ridge, and when cam rotates, convex ridge profile makes index dial stop operating.Wherein
One section of resting is one circular convex ridge, the plain line of side profile surface and the axes intersect of globoid cam body；Second section of resting is twice
Annulus convex ridge, the plain line of two side profile surfaces and the axes intersect of globoid cam body, the plain line of two side profile surfaces and globoid cam body
Axis vertical.The four-stage of convex ridge is different with the situation that engages of roller each other.
Described globoid cam body rotates when being in first section of resting, and first section of resting is one annulus convex ridge, convex ridge profile
Being shaped as anchor ring, the most adjacent roller I and roller II are across being clipped on this road annulus convex ridge, and connect with both sides anchor ring respectively
Touching, contact line and the axes intersect of globoid cam body, index dial cannot rotate, be in the down-time period.Right with roller I and roller II
Axis and be called 0 degree of angle straight down, is just counterclockwise, and the most now the position angle of roller I is 180/Z, the position angle of roller II
For-180/Z, the position angle of roller III be-540/Z, Z be roller number.Cam continues to rotate, when the first indexing section and rolling of convex ridge
During son engagement, the ridge-shape of the first indexing section is twice spirillum, and two spiral profile surfaces of helical rib promote roller I respectively
Make index dial rotate indexing with roller II, enter the indexing phase.Carving in due course, another spiral profile surface of roller III and convex ridge contacts,
Thus also into engagement.When convex ridge first section of indexing completes, the position angle of roller I is 360/Z, and the position angle of roller II is 0,
The position angle of roller III is-360/Z, and the Angle Indexing that the most now index dial realizes is 180/Z degree, and the indexing phase terminates.Cam continues
Continuous rotating, when second section of resting of convex ridge enters engagement, second section of resting includes twice annulus convex ridge, and convex ridge is simultaneously and roller
I, roller II and roller III engage, during wherein roller II is sandwiched in the annulus groove that two convex ridge annulus profile surfaces are formed, and ring channel
The plain line of groove both sides profile surface is vertical with globoid cam body axis, and roller I and roller III are respectively across the annulus convex ridge being clipped in both sides
In profile surface, the plain line of the two side profile surface intersects with globoid cam body axis, and index dial stops operating.Cam continues to rotate, when
When second indexing section of convex ridge enters engagement, roller I exits engagement, and only a certain spiral profile surface of convex ridge promotes roller II to make point
Scale rotates, and makes roller II and roller III first section of resting respectively with cam lobe crest position annular face contacts until cam rotates,
Second indexing phase terminated, and entered again for the first down-time period, completed a cycle of operation.At the end of the second indexing phase, roller II
Position angle be 180/Z degree, the position angle of roller III is-180/Z degree, i.e. second indexing phase index dial occur indexing angle
For 180/Z degree.After cam has turned 360 degree, roller II, roller III and roller IV on index dial replace original roller respectively
I, roller II and roller III start to repeat said process, carry out next cycle of operation.
During described cam body rotates a circle, index dial there occurs that twice indexing rotates and twice interval, and each divides
Degree angle is all 180/Z.
The invention has the beneficial effects as follows: during the power shaft of indexing means rotates a circle, output shaft can complete twice point
Degree, improves speed of action and efficiency；And each minute of angle of output shaft is equal to the half of central angle, the i.e. number of divisions between roller
Equal to the twice of roller number, so need not change the physical dimension of index dial, it is possible to achieve the big number of divisions.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of globoid cam indexing means realizing the big number of divisions of the present invention.
Fig. 2 is the expansion schematic diagram of globoid cam convex ridge profile surface.
Fig. 3 is globoid cam convex ridge roller when being in for the first down-time period and convex ridge mesh schematic representation.
Fig. 4 is globoid cam convex ridge roller when being in for the first indexing phase and convex ridge mesh schematic representation.
Fig. 5 is globoid cam convex ridge roller when being in for the second down-time period and convex ridge mesh schematic representation.
Fig. 6 is globoid cam convex ridge roller when being in for the second indexing phase and convex ridge mesh schematic representation.
Detailed description of the invention
In order to technical scheme is explained further, below by specific embodiment, the present invention is explained in detail
State.
Referring to Fig. 1, a kind of Cam indexing device realizing the big number of divisions mainly by indexing case 1, power shaft 2, output shaft 3,
Globoid cam body 4, index dial assembly form.Described power shaft 2 and output shaft 3 are interlaced vertically, and globoid cam body 4 passes through
Bonded being arranged on power shaft 2, index dial assembly is arranged on output shaft 3 by bonded.Described index dial assembly bag
Including index dial 5 and multiple roller 6, roller axis all intersects vertically with index dial axis, and all rollers 6 be threaded connection and
Pin connection is fixed on index dial 5 along index dial circumference is radially uniform, and roller number is 8, and the central angle between roller is
45°；Roller is shaped as cylinder, can be replaced by needle bearing or cam driven bearing.Power shaft 2, output shaft 3, cambered surface are convex
Wheel body 4, index dial assembly are installed in indexing case 1.
Described globoid cam body 4 is around one convex ridge 7 of superposition on a revolving body with circular arc as bus.Referring to
Fig. 2, described convex ridge 7 profile is divided into four-stage during cam rotates a circle: the first section of resting 8 first indexes section
9 second sections of resting 10 second index section 11.The helical rib that convex ridge profile is Changeable Lead of two indexing sections, permissible
Left-handed, it is also possible to dextrorotation；When cam rotates, convex ridge profile promotes roller, makes index dial indexing index；Two sections of resting convex
Ridge profile is anchor ring, and when cam rotates, convex ridge profile makes index dial stop operating.
Referring to Fig. 3, described globoid cam body 4 rotates when being in the first section of resting 8, and the first section of resting 8 is that one annulus is convex
Ridge, adjacent roller I 12 and roller II 13 are in the first section of resting 8 of folder convex ridge, and roller I 12 and roller II 13 are respectively and cam
On the right side of the setting circle anchor ring of the section of resting, profile surface 15 contacts with left side profile surface 16, contact line and the axes intersect of globoid cam body, divides
Scale 5 cannot rotate, and is in the down-time period.With roller I and the axis of symmetry of roller II and be 0 degree of angle straight down, it is counterclockwise
Just, the most now the position angle of roller I 12 is 22.5 °, and the position angle of roller II 13 is-22.5 °, the position angle of roller III 14 is-
67.5°。
Referring to Fig. 4, cam continues to rotate, and when the first indexing section 9 of convex ridge engages with roller, the first indexing section 9 is two
Road Variable lead body, first spirochetal spiral profile surface 17 promotes roller I 12, and second spirochetal spiral profile surface 18 pushes away
Dynamic roller II 13 makes index dial rotate indexing, enters the indexing phase.Carve in due course, roller III 14 spirochetal with second another
Spiral profile surface 19 contacts, thus also into engagement.When convex ridge first section of indexing completes, the position angle of roller I 12 is 45 °, rolling
The position angle of son II 13 is 0, and the position angle of roller III 14 is-45 °, and the Angle Indexing that the most now index dial realizes is 22.5 °, point
The phase of spending terminates.
Referring to Fig. 5, cam continues to rotate, when the second section of resting 10 of convex ridge enters engagement, and second section of resting of convex ridge
10 is twice torus, and twice toric side profile surface engages with roller I 12, roller II 13 and roller III 14 simultaneously, wherein rolls
Son II 13 is sandwiched in the annulus groove of convex ridge location annulus profile surface 20 and annulus profile surface 21 formation, and roller contacts line with profile surface
It is perpendicular to the axis of globoid cam body；And roller I 12 is across in annulus convex ridge profile surface 19, roller III 14 is across annulus convex ridge profile surface
On 22, contact line and the axes intersect of globoid cam body, index dial stops operating, and is in the down-time period.
Referring to Fig. 6, cam continues to rotate, and when the second indexing section 11 of convex ridge enters engagement, the second indexing section 11 is two
Road Variable lead body, roller I 12 is gradually backed out engagement, and only the spiral profile surface 15 of convex ridge promotes roller II 13 to make index dial turn
Dynamic, index dial is in the indexing phase；Roller II 13 and roller III 14 first respectively with cam lobe crest is made to rest until cam rotates
Duan Dingwei anchor ring 15 contacts with location anchor ring 16, and the second indexing phase terminated, and entered again for the first down-time period 8, completed a job
Circulation.At the end of the second indexing phase, the position angle of roller II 13 is 22.5 °, and the position angle of roller III 14 is-22.5 °, i.e.
The indexing angle that two indexing phase index dials occur is 22.5 °.After cam has turned 360 degree, the roller II 13 on index dial, rolling
Son III 14 and roller IV 23 replace original roller I 12, roller II 13 and roller III 14 respectively and start to repeat said process, carry out
Next cycle of operation.
During described cam body 4 rotates a circle, index dial completes twice and rests and twice indexing, each minute of angle
It is 22.5 °, equal to the half of 45 ° of central angle between roller, during i.e. index dial rotates a circle, completes 16 indexing.
Claims (5)
1. realize a globoid cam indexing means for the big number of divisions, mainly include indexing case, power shaft, output shaft, be connected in
Globoid cam body on power shaft, the index dial assembly being connected on output shaft, it is characterised in that:
Described power shaft and output shaft are serrated vertical, and in index dial assembly, all rollers axis is all vertical with index dial axis
Intersecting, all rollers is fixedly connected on index dial along index dial circumference is radially uniform；
Described globoid cam body is that convex ridge profile exists around one convex ridge of superposition on a revolving body with circular arc as bus
Cam is divided into first section of resting, the first indexing section, second section of resting and the second indexing Duan Gongsi during rotating a circle
Stage；The convex ridge profile of two indexing sections is all the helical rib of twice Changeable Lead, and first section of resting is one circular convex ridge,
The plain line of side profile surface and the axes intersect of globoid cam body；Second section of resting is twice annulus convex ridges, two of which side profile surface
Element line and the axes intersect of globoid cam body, the plain line of two side profile surfaces is vertical with the axis of globoid cam body；
During described cam body rotates a circle, index dial there occurs that twice indexing rotates and twice interval, and output shaft is each
Minute of angle is equal to the twice of roller number equal to the half of central angle, the i.e. number of divisions between roller.
A kind of globoid cam indexing means realizing the big number of divisions the most according to claim 1, it is characterised in that convex ridge is taken turns
Exterior feature engages with roller when being in the first indexing section, and two spiral profile surfaces of convex ridge promote roller I and roller II to make index dial respectively
Rotating indexing, carve in due course, another spiral profile surface of roller III and convex ridge contacts, thus also into engagement；Convex ridge profile and rolling
When son engagement is in the second indexing section, roller I exits engagement, and only a certain spiral profile surface of convex ridge promotes roller II to make index dial
Rotate.
A kind of globoid cam indexing means realizing the big number of divisions the most according to claim 1, it is characterised in that described convex
Ridge profile engages with roller when being in first section of resting, and adjacent roller I and roller II are across being clipped on one section of convex ridge, and index dial stops
Spline is moved；Convex ridge profile engages with roller when being in second section of resting, and roller II is sandwiched in what two convex ridge annulus profile surfaces were formed
In annulus groove, contact line is vertical with the axis of globoid cam body, and roller I and roller III are respectively across the annulus convex ridge being clipped in both sides
In profile surface, contact line and the axes intersect of globoid cam body, index dial stops operating.
A kind of globoid cam indexing means realizing the big number of divisions the most according to claim 1, it is characterised in that roller number
Can be even number, it is also possible to for odd number；Roller shape can be cylindrical, truncated cone-shaped or circular arc.
A kind of globoid cam indexing means realizing the big number of divisions the most according to claim 1, it is characterised in that two points
The helical rib of degree section, can be left-handed, it is also possible to dextrorotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544632.3A CN106122412B (en) | 2016-07-12 | 2016-07-12 | A kind of globoid cam indexing means for realizing the big number of divisions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544632.3A CN106122412B (en) | 2016-07-12 | 2016-07-12 | A kind of globoid cam indexing means for realizing the big number of divisions |
Publications (2)
| Publication Number | Publication Date |
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| CN106122412A true CN106122412A (en) | 2016-11-16 |
| CN106122412B CN106122412B (en) | 2018-03-09 |
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| CN201610544632.3A Expired - Fee Related CN106122412B (en) | 2016-07-12 | 2016-07-12 | A kind of globoid cam indexing means for realizing the big number of divisions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971893A (en) * | 2017-04-24 | 2017-07-21 | 习水县西科电脑科技有限公司 | A kind of safety-protection system |
| CN112476759A (en) * | 2020-11-17 | 2021-03-12 | 上海福集水泥制品有限公司 | Concrete compounding device |
| CN112719589A (en) * | 2020-12-28 | 2021-04-30 | 刘宏 | Automatic laser welding equipment |
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| JPH1122804A (en) * | 1997-07-07 | 1999-01-26 | Otsuka Hightech:Kk | Indexing device |
| CN1594038A (en) * | 2004-07-08 | 2005-03-16 | 西安交通大学 | One division cam mechanism with cambered surface |
| CN203604563U (en) * | 2013-11-21 | 2014-05-21 | 兆奕精密机械有限公司 | Indexing device and cam transmission shaft thereof |
| CN204716905U (en) * | 2015-03-31 | 2015-10-21 | 深圳市高士达精密机械有限公司 | A kind of intermittent type slicer |
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2016
- 2016-07-12 CN CN201610544632.3A patent/CN106122412B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1122804A (en) * | 1997-07-07 | 1999-01-26 | Otsuka Hightech:Kk | Indexing device |
| CN1594038A (en) * | 2004-07-08 | 2005-03-16 | 西安交通大学 | One division cam mechanism with cambered surface |
| CN203604563U (en) * | 2013-11-21 | 2014-05-21 | 兆奕精密机械有限公司 | Indexing device and cam transmission shaft thereof |
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Non-Patent Citations (1)
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| 李丙才等: "弧面分度凸轮的实体造型及数控加工", 《兰州理工大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971893A (en) * | 2017-04-24 | 2017-07-21 | 习水县西科电脑科技有限公司 | A kind of safety-protection system |
| CN106971893B (en) * | 2017-04-24 | 2019-07-30 | 习水县西科电脑科技有限公司 | A kind of security system |
| CN112476759A (en) * | 2020-11-17 | 2021-03-12 | 上海福集水泥制品有限公司 | Concrete compounding device |
| CN112476759B (en) * | 2020-11-17 | 2022-07-05 | 东营新垦源达建材有限责任公司 | Concrete compounding device |
| CN112719589A (en) * | 2020-12-28 | 2021-04-30 | 刘宏 | Automatic laser welding equipment |
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| CN106122412B (en) | 2018-03-09 |
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