CN106142027B - Interior sheave intermittent rotary workbench - Google Patents
Interior sheave intermittent rotary workbench Download PDFInfo
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- CN106142027B CN106142027B CN201510147281.8A CN201510147281A CN106142027B CN 106142027 B CN106142027 B CN 106142027B CN 201510147281 A CN201510147281 A CN 201510147281A CN 106142027 B CN106142027 B CN 106142027B
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Abstract
The invention discloses a kind of interior sheave intermittent rotary workbench, it has several equally distributed stations, and starting, acceleration, deceleration, braking and positioning are completed under the drive of interior sheave drive mechanism, the operation of various processes is carried out during the pause of intermittent rotary turntable.Present invention mainly solves the inaccurate problems of traditional interior sheave drive mechanism positioning, its driving shaft drives an actuating arm to make rotating motion, there is a driving wheel on actuating arm, groove on this driving wheel and intermittent rotary turntable interacts, intermittent rotary turntable is driven to realize starting, accelerate, slow down and stops, it is characterized in that: there are also 2 locating wheels symmetrical with driving shaft on actuating arm, when driving wheel is located at idle angular, this 2 locating wheels embrace the circular arc positioning surface of the protrusion on intermittent rotary turntable, so that intermittent rotary turntable is not able to rotate, play the role of accurate positioning.
Description
Technical field
The invention belongs to industrial intermittent rotary workbench, it has several equally distributed stations, in interior sheave drive machine
Starting, acceleration, deceleration, braking and positioning are completed under the drive of structure, and the operation of various processes is carried out during the pause of turntable.
Background technique
The intermittent rotary workbench being closer to the present invention is traditional interior sheave intermittent motion mechanism.It is often used to
By the continuous rotation of driving link be converted into driven member with the unidirectional periodic rotary rested.But there is positioning accuracies for they
The problem of difference.It is high the invention aims to provide a kind of positioning accuracy, wear small, the interior sheave intermittent rotary work of service life length
Platform.
Summary of the invention
Intermittent rotary workbench, driving shaft drive actuating arm to do rotation fortune by the active shaft mounting hole on actuating arm
It is dynamic, there is a driving wheel on actuating arm, the groove interaction of this driving wheel and intermittent rotary turntable drives intermittent rotary to turn
Disk realizes starting, accelerates, slows down and stop, it is characterized in that: there are also 2 locating wheels on actuating arm, above driving shaft, when
When driving wheel is located at the surface of driving shaft, 2 locating wheels are located at the left and right sides of driving shaft；When driving wheel is located at idle running
When angle, this 2 locating wheels embrace the positioning arc surface on the positioning convex platform on intermittent rotary turntable, so that intermittent rotary turntable
It is not able to rotate, plays the role of accurate positioning；The groove of intermittent rotary turntable is in radiate on side from the center of intermittent rotary turntable
Shape is uniformly distributed, and the number of groove minimum 3；The number of groove is also the number of station on intermittent rotary turntable；Driving shaft is every
Turn 1 week, intermittent rotary disk rotates a station；The center of rotation of driving shaft and intermittent rotary turntable has an eccentricity, station
Quantity and eccentricity size determines the size of driving wheel idle angular and starts the start position of driving, driving wheel has one
A idle angular, in this idle angular, driving shaft turns, and intermittent rotary turntable does not turn；There is protrusion on intermittent rotary turntable
Positioning convex platform, there is positioning arc surface on positioning convex platform, and positioning arc surface has position degree requirement in processing and assembly, works as setting circle
When cambered surface is embraced by locating wheel, the center of circle and the driving shaft for positioning arc surface are coaxial；The setting circle of protrusion on intermittent rotary turntable
The quantity of cambered surface is determined there are several stations by station quantity, just there is several pairs of raised positioning arc surfaces, each pair of positioning arc surface point
Not Wei Yu intermittent rotary turntable rotation direction front-rear direction, position the length of arc surface with do not influence drive and driving wheel can be made
Subject to steadily joining with locating wheel；
Since the characteristic of interior sheave drive can be such that intermittent rotary turntable opens in the case where the torque of driving shaft is less big
Kinetic moment is big, acceleration is fast, moves steady, braking fastly；
The distance that two positioning take turns to driving shaft mounting hole center is adjustable, takes turns to driving shaft installation by adjusting two positioning
Positioning accuracy is improved in the gap that the distance at hole center eliminates mismachining tolerance and abrasion generates.
It adjusts two and positions the distance for taking turns to driving shaft mounting hole center, using eccentric locating axle, pass through rotational positioning
Wheel shaft, so that the distance that the positioning being mounted in eccentric locating axle takes turns to driving shaft mounting hole center changes.
Rolling bearing can be used in driving wheel, locating wheel, and rolling can be used in the support wheel and centering wheel of intermittent rotary turntable
The transmission of dynamic bearing, power passes through rolling bearing, it is possible to reduce frictional force saves energy, reduces abrasion, keeps high-precision.
Raised positioning convex platform on intermittent rotary turntable can be mounted on intermittent rotary turntable using the method inlayed,
One of scheme is that arc-shaped slot is milled out on intermittent rotary turntable using cylindrical milling cutter, then corresponding arc-shaped positioning
Boss is mounted in slot.
The beneficial effects of the present invention are: compared with the intermittent rotary workbench that traditional internal s tandard drives, due to this
Invention uses 2 locating wheels and embraces the positioning arc surface on the positioning convex platform on intermittent rotary turntable, improves positioning accuracy,
It is more reasonable to position stress；Relative motion part has been all made of rolling bearing, and abrasion is reduced, and the service life increases.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the overall pattern of the interior sheave intermittent rotary workbench of 3 stations.
Fig. 2 is the drive part and support section of interior sheave intermittent rotary workbench.
Fig. 3 is the top view of interior sheave intermittent rotary workbench.
Fig. 4 is the A-A section of Fig. 3.
Fig. 5 is the enlarged drawing of the local A of Fig. 4.
Fig. 6 is the perspective view for the intermittent rotary turntable seen from obliquely downward.
Fig. 7 is the intermittent rotary workbench plan view seen from below.
Fig. 8 is the B-B section of Fig. 7.
Fig. 9 to Figure 12 is the view of actuating arm, drive shaft and driving wheel, locating axle and locating wheel.
Figure 13 is the enlarged drawing of the local B of Figure 10.
Figure 14 is the interior bottom-up figure of sheave intermittent rotary workbench.
Figure 15 is interior sheave intermittent rotary workbench motor, speed reducer, actuating arm, intermittent rotary disk position figure.
Figure 16 is interior sheave intermittent rotary workbench actuating arm, driving wheel, locating wheel, intermittent rotary disk position figure.
Figure 17 is location drawing when interior sheave intermittent rotary workbench actuating arm is in 0 °.
Figure 18 is location drawing when interior sheave intermittent rotary workbench actuating arm is in 30 °.
Figure 19 is location drawing when interior sheave intermittent rotary workbench actuating arm is in 90 °.
Figure 20 is location drawing when interior sheave intermittent rotary workbench actuating arm is in 180 °.
Figure 21 is location drawing when interior sheave intermittent rotary workbench actuating arm is in 270 °.
Figure 22 to Figure 25 be interior sheave intermittent rotary workbench actuating arm by 300 ° to 15 ° when the location drawing.
Figure 26 is sheave intermittent rotary workbench in closed 5 station.
Figure 27 be after taking down shell out of obliquely downward is seen 5 stations sheave intermittent rotary workbench internal structure.
Figure 28 is the plan view with the turntable of different groove shapes.
Figure 29 is the perspective view with the turntable of different groove shapes.
In figure:
1. intermittent rotary turntable；2. pedestal；3. mounting platform；3M. adjusts screw hole；4. bearing mount；5. centration axis
Hold seat；6. centering wheel；6c. centering wheel case；7. support wheel；8. supporting bearing base；9. supporting block；10. motor；11. driving shaft；
12. actuating arm；12c. locating axle mounting surface；13. driving wheel；14. locating wheel；The installation of 14c. locating axle and locating wheel
Face；15. speed reducer；16. groove planarea；17. groove arc surface；18. positioning convex platform；19. positioning arc surface；20. positioning surface
Center；21. intermittent rotary center of turntable；22. intermittent rotary turntable outer circle；23. rotary disk limitation edge；24. locating axle；25.
Drive shaft；26. active shaft mounting hole；27. lower grinding tool；28. sheave intermittent rotary workbench in 5 stations；29. turntable shell；
30. the turntable with different groove shapes；
Specific embodiment
Fig. 1 is the overall pattern of the interior sheave intermittent rotary workbench of 3 stations.It is by intermittent rotary turntable 1 and pedestal 2
Composition, pedestal 2 be it is fixed, intermittent rotary turntable 1 can do intermittent rotary movement with respect to pedestal 2.Electricity is installed on pedestal 2
Motivation 10 and speed reducer 15, driving shaft 11 drive actuating arm 12 to rotate, and driving shaft 11 is not in the rotation of intermittent rotary turntable 1
In the heart, there is an eccentricity；There is a driving wheel 13 on actuating arm 12, it is moved in the groove of intermittent rotary turntable 1, ditch
Slot is formed by several groove planareas 16 and groove arc surface 17, and driving wheel 13 is moved in a circle centered on driving shaft 11, it
With on groove planarea 16 and groove arc surface 17 interact and form the intermittent rotary of intermittent rotary turntable 1, work as driving wheel
13 in planarea 16 when moving, and driving wheel 13 drives intermittent rotary turntable 1 to rotate, and moves when driving wheel 13 has gone out planarea 16
When, driving wheel 13 cannot drive intermittent rotary turntable 1 to rotate；There are 2 locating wheels 14 on actuating arm 12, locating wheel 14 is stretched
Height be lower than driving wheel 13, they do not enter in the groove of intermittent rotary turntable 1, the positioning of they and intermittent rotary turntable 1
Positioning arc surface 19 on boss 18 cooperates, and plays positioning action；When driving wheel 13, which has gone out planarea 16, to be moved, driving
Wheel 13 no longer controls the position of interval rotary turnplate 1, and at this moment locating wheel 14 starts the positioning arc surface 19 with intermittent rotary turntable 1
Engagement, embraces the positioning arc surface 19 on the positioning convex platform 18 of intermittent rotary turntable 1；In design and assembly, it is desirable that interval is revolved
The center of circle for the positioning arc surface 19 walked around on the positioning convex platform 18 of disk 1 and driving shaft 11 are coaxial, and 2 locating wheels 14 are symmetrical with actively
Axis 11；Even if driving shaft 11 is also rotating, intermittent rotary turntable 1 is not able to rotate still；In terms of outer radial center, when driving wheel 13
When the front of driving shaft 11,2 locating wheels 14 are located at the left and right of driving shaft 11；Intermittent rotary turntable 1
Positioning arc surface 19 on positioning convex platform 18 be also it is symmetrical, embraced respectively from the left and right when by 2 locating wheels 14
When, intermittent rotary turntable 1 can neither turn left and cannot turn right, and Impact direction is also relatively reasonable, be parallel to 1 turn of intermittent rotary turntable
Dynamic tangential direction；It is elastic adjustable between 2 locating wheels 14 and the positioning arc surface 19 of intermittent rotary turntable 1, it can eliminate
The gap generated after processing, assembly and abrasion；When driving shaft 11 continues to rotate to interval with actuating arm 12 and driving wheel 13
When near the inlet of the planarea 16 in the groove of rotary turnplate 1, the locating wheel 14 on actuating arm 12 starts and intermittent rotary
The positioning arc surface 19 of turntable 1 is disengaged from, and allows driving wheel 13 that intermittent rotary turntable 1 is driven to rotate.
In the intermittent rotary workbench of 3 stations, planarea that the groove of intermittent rotary turntable 1 is 120 degree by 3 pairs of angles
16 and groove arc surface 17 form, driving shaft 11 circles, 1 turn 120 degree of intermittent rotary turntable；One week turned in driving shaft 11
In there is 60 degree of the angle to be that intermittent rotary turntable 1 is not driven to rotate.Various operations can be carried out during this.And we
Locating wheel 14 and positioning arc surface 19 effectively raise positioning accuracy.If necessary to the longer residence time, master can control
Moving axis 11 is regular to be started and stopped, and driving shaft 11 is made to pause in the positioning circular arc for working as locating wheel 14 and intermittent rotary turntable 1
Face 19 is in the position of meshing state, since positioning arc surface 19 has more stringent position degree requirement in processing and assembly,
When positioning, locating wheel 14 is equivalent to be rolled on a concentric circles, while the gap very little of locating wheel 14 and positioning arc surface 19,
Even very close to each other, if the gap very little of driving shaft 11, rigidity is very big, and 1 support wheel of intermittent rotary turntable and centering wheel are adjusted
Whole is suitable, so that it may reach very high positioning accuracy.
Fig. 2 is the drive part and support section of interior sheave intermittent rotary workbench.Pedestal 2 has the frame welded together
Frame, there is mounting platform 3 thereon, and speed reducer 15 is also mounted on pedestal 2；Motor 10 is mounted on speed reducer；Speed reducer 15 is logical
Crossing driving shaft 11 drives actuating arm 12 to rotate；There is driving wheel 13 and 2 locating wheel 14 on actuating arm 12；Bearing mount 4 is installed
On mounting platform 3, the front-rear position that screw hole 3M is used to adjust bearing mount 4 is adjusted, to adjust intermittent rotary turntable 1
Center and centering wheel 6 compression strength；Alignment bearing seat 5 can be slided up and down in bearing mount 4, so that centering wheel 6
The rotary disk limitation edge 23 on intermittent rotary turntable 1 can be pushed down below；Support wheel 7 be used to support intermittent rotary turntable 1 and
The weight of the grinding tool, workpiece installed thereon, and adjust the level and height of intermittent rotary turntable 1；Supporting bearing base 8 has branch below
Bracer 9；Supporting block 9 is elastic material, adjusts support wheel 7 by adjusting the degree of tightening of mounting screw in supporting bearing base 8
Height and pretightning force；
Fig. 3 is the top view of interior sheave intermittent rotary workbench.
Fig. 4 is the A-A section of Fig. 3.
Fig. 5 is the enlarged drawing of the local A of Fig. 4.Centering wheel 6 can bear radial load but also bear axial load, feel relieved
Wheel case 6c uses softer material, makes to wear and deform to occur to reduce on intermittent rotary turntable 1 on centering wheel case 6c
The abrasion of outer circle and rotary disk limitation edge 23, is held in position precision, improves service life.
Fig. 6 is the perspective view for the intermittent rotary turntable 1 seen from obliquely downward.Ditch is provided with below intermittent rotary turntable 1
Slot, groove are made of 3 pairs of planarea 16 and 3 arc surfaces 17, and the distance between two opposite planareas 16 are slightly larger than driving
The diameter of wheel 13, so that driving wheel 13 can freely roll in slot；The trend of 3 pairs of planareas 16 is by intermittent rotary turntable 1
Center radial be uniformly distributed outward；There is the linking of arc surface 17 between adjacent planarea 16；Arc surface 17 and planarea
16 is tangent and concentric with the positioning arc surface 19 on the positioning convex platform of same station 18；When working properly, when locating wheel 14 is embraced
When positioning arc surface 19, theoretically, the center of circle for positioning arc surface 19 is again coaxial with driving shaft 11；For having between N number of station
It has a rest rotary table, structure feature is described consistent with more than, only replaces number of stations 3 with N.Intermittent rotary turntable 1
Each station has a pair of of positioning convex platform 18 and positioning arc surface 19, each pair of positioning arc surface 19 to be located at intermittent rotary turntable
The front-rear direction of 1 rotation direction positions the length of arc surface 19 not influence to drive and driving wheel 13 and locating wheel 14 can be made flat
Subject to steady handover；17 shape is not uniquely, as long as not influencing the movement of driving wheel 13；Positioning convex platform 18 is higher by interval
The distance H1 of bottom surface one of rotary turnplate 1, outer circle has positioning arc surface 19, in order to easy to process, between positioning convex platform 18 is bumped into
It in rotary turnplate of having a rest 1, is milled out in the corresponding position of intermittent rotary turntable 1 and carrys out arc groove, be then pressed into positioning convex platform 18 and fixed；
There is complete planar annular in the bottom surface of intermittent rotary turntable 1 close to outer edge, and support wheel 7 just withstands on this region；
Intermittent rotary turntable outer circle 22 is held out against by centering 6 ecto-entads of wheel and adjusts the rotation center of intermittent rotary turntable 1；Intermittent rotary
Center of turntable 21 is fabrication hole, and to process and assembly provides reference data, it is concentric with intermittent rotary turntable outer circle 22；Turntable limit
The step at position the upper surface of edge 23 is pushed down by the lower end surface of centering wheel 6 or the wheel case 6c that feels relieved, prevent intermittent rotary turntable 1 to
Upper movement；Positioning surface center 20 is fabrication hole, to process and assembly provides reference data, when 2 locating wheels on actuating arm 12
14 when embracing the positioning arc surface 19 on positioning convex platform 18, and the center of circle of positioning arc surface 19 should be coaxial with driving shaft 11；So as to
It is engaged with 2 locating wheels 14 on actuating arm 12；It positions arc surface 19 and positioning surface center 20 is concentric；Driving on actuating arm 12
Wheel 13 can move in the trench, interact with the side of groove, realize intermittent rotary；Intermittent rotary turns in the present embodiment
There are 3 stations on disk 1, the planarea 16 that 3 opposite external radiations of equal part are presented in the shape of groove is mutually interconnected with groove arc surface 17
It connects, when driving wheel 13 moves on planarea 16, driving wheel 13 drives intermittent rotary turntable 1 to rotate, when driving wheel 13 does not exist
When moving on planarea 16, driving wheel 13 does not drive intermittent rotary turntable 1 to rotate, and when driving wheel 13 has gone out planarea 16, drives
2 locating wheels 14 on swing arm 12 start to engage with positioning arc surface 19, embrace the positioning convex platform 18 on intermittent rotary turntable 1,
So that intermittent rotary turntable 1 is not able to rotate, the positioning surface center 20 and driving shaft 11 on intermittent rotary turntable 1 are coaxial, driving shaft
11 turns, intermittent rotary turntable 1 does not rotate, and at this moment, can carry out the operation of each process；Under drive in driving shaft 11, drive
When driving wheel 13 on swing arm 12 will enter adjacent planarea 16,2 locating wheels 14 on actuating arm 12 start and positioning
Arc surface 19 is detached from, and decontrols the positioning convex platform 18 on intermittent rotary turntable 1, intermittent rotary turntable 1 is rotated；Work as driving
When driving wheel 13 on arm 12 is again introduced into the planarea 16 of groove, and intermittent rotary turntable 1 is driven to rotate；Every turn of driving shaft 11
1 week, intermittent rotary turntable 1 rotated a station, wherein there is the dead time, intermittent rotary turntable 1 realizes intermittent rotary movement；
It is the working principle of the interior sheave intermittent rotary workbench of our 3 stations above.
Fig. 7 is the intermittent rotary workbench plan view seen from below.D2 is the outer diameter of intermittent rotary turntable 1, between R1 is
The corresponding position for installing positioning convex platform 18 in rotary turnplate of having a rest 1, which mills out, carrys out circular arc groove radius, and R2 is the half of groove outer end
Diameter, L1 are distance of the groove outer end center radius R2 to the center of intermittent rotary turntable 1, and R3 is the radius of arc surface 17.
Fig. 8 is the B-B section of Fig. 7.C1 is the depth of groove.
Fig. 9 is the vertical view of 14 installation diagram of actuating arm 12, drive shaft 25 and driving wheel 13, locating axle 24 and locating wheel
Figure.The wherein position of C-C representative profile.
Figure 10 is the C-C section in Fig. 9, and range indicated by B is the region to be amplified in figure, by what is indicated in Figure 13
It becomes apparent from.
Figure 11 is the side view of 14 installation diagram of actuating arm 12, drive shaft 25 and driving wheel 13, locating axle 24 and locating wheel
Figure.
Figure 12 is the solid of 14 installation diagram of actuating arm 12, drive shaft 25 and driving wheel 13, locating axle 24 and locating wheel
Figure.
As can see from Figure 12, there is an active shaft mounting hole 26 on actuating arm 12, driving shaft 11 will be mounted on master
In moving axis mounting hole 26 and actuating arm 12 is driven to rotate；Drive shaft 25 and driving are installed in the top of active shaft mounting hole 26
Wheel 13；Locating axle 24 and locating wheel 14 are symmetrically installed in the left and right sides of active shaft mounting hole 26；Locating wheel 14 and driving
Wheel 13 not in the same plane, driving wheel 13 stretch it is longer because it will extend into the ditch on intermittent rotary turntable 1
Inside slot；
Figure 13 is the enlarged drawing of the local B of Figure 10.Locating axle 24 is mounted on the locating axle mounting surface on actuating arm 12
In 12c, locating wheel 14 is mounted on the mounting surface 14c of the locating axle in locating axle 24 and locating wheel, locating axle and fixed
The mounting surface 14c of position wheel and locating axle mounting surface 12c and decentraction, one eccentric distance e of design, pass through rotational positioning
Wheel shaft 24 changes the position of eccentric distance e, changes the distance that locating wheel 14 arrives 26 center of active shaft mounting hole；It can be used to eliminate
Wearing clearance is eliminated in processing, rigging error, adjusts the positioning on the holding intermittent rotary turntable 1 of locating wheel 14 on positioning convex platform 18
The tightness of arc surface 19；
Figure 14 is the interior bottom-up figure of sheave intermittent rotary workbench.
Motor 10 and speed reducer 15 are installed together, and are in turn mounted on pedestal 2；Motor is used in the present embodiment
10 and speed reducer 15 by driving shaft 11 drive actuating arm 12 rotate, but can also using hydraulic motor drive；Driving shaft 11
There can be installation bearing positioning, driving shaft 11 and speed reducer 15 or hydraulic motor are connected using shaft coupling.
Figure 15 is interior sheave intermittent rotary workbench motor 10, speed reducer 15, actuating arm 12, intermittent rotary turntable 1
The location drawing.
Figure 16 is interior sheave intermittent rotary workbench actuating arm 12, driving wheel 13, locating wheel 14, intermittent rotary turntable 1
The location drawing.Driving shaft 11 will be mounted in the active shaft mounting hole 26 of actuating arm 12, and actuating arm 12 is driven to rotate；In diagram position
It sets, driving wheel 13 is located on the groove arc surface 17 in the groove of intermittent rotary turntable 1, other 2 positioning on actuating arm 12
Wheel 14 has embraced the positioning convex platform 18 on intermittent rotary turntable 1, is in meshing state with positioning arc surface 19, at this moment, interval
The positioning arc surface 19 embraced by locating wheel 14 and active shaft mounting hole 26 in rotary turnplate 1 is coaxial；In this position, actively
11 turns of axis, but intermittent rotary turntable 1 does not turn；
Figure 17 is location drawing when interior sheave intermittent rotary workbench actuating arm 12 is in 0 °.
Figure 18 is location drawing when interior sheave intermittent rotary workbench actuating arm 12 is in 30 °.At this moment, driving wheel 13 starts
Into on the planarea 16 of the groove on intermittent rotary turntable 1, start that intermittent rotary turntable 1 is driven to rotate, at the same time, positioning
Wheel 14 has rotated 30 degree also with actuating arm 12, departing from positioning arc surface 19, allows intermittent rotary turntable 1 in 13 band of driving wheel
Dynamic lower rotation.
Figure 19 is location drawing when interior sheave intermittent rotary workbench actuating arm 12 is in 90 °.At this moment, driving wheel 13 has been
Into in the planarea 16 of the groove on intermittent rotary turntable 1, and intermittent rotary turntable 1 is driven to have rotated an angle a.
Figure 20 is location drawing when interior sheave intermittent rotary workbench actuating arm 12 is in 180 °.At this moment, driving wheel 13 has been
In the planarea 16 of groove through entering on intermittent rotary turntable 1, and intermittent rotary turntable 1 is driven to have rotated 60 degree.?
Shown position, locating wheel 14 are not interfered with positioning convex platform 18, and there are also several millimeters of gaps between them.
Figure 21 is location drawing when interior sheave intermittent rotary workbench actuating arm 12 is in 270 °.
Figure 22 to Figure 25 be the corner of interior sheave intermittent rotary workbench actuating arm 12 be respectively 300 °, 330 °, 345 ° and
Location drawing when 15 ° (or 375 °).When driving wheel 13 moves in the planarea 16 of groove, the gap of slot and driving wheel is not
Greatly, the angle position of intermittent rotary turntable is related with the position of driving wheel 13, when actuating arm 12 is located at the position of Figure 23, driving
Wheel 13 has arrived the outlet of planarea 16, and motion profile is parallel with planarea 16, and intermittent rotary turntable 1 has stopped turning
Dynamic, locating wheel 14 will be contacted with the positioning convex platform 18 on intermittent rotary turntable 1, i.e., will embrace positioning arc surface 19.In Figure 24
In Figure 25, locating wheel 14 has embraced the positioning arc surface 19 on positioning convex platform 18, during this period, intermittent rotary turntable 1
It is not able to rotate.
Driving wheel 13 can use rolling bearing, be mounted on drive shaft 25, to reduce frictional force, be also convenient for safeguarding；
Equally, locating wheel 14 can also use rolling bearing.When driving wheel 13 moves in groove planarea 16 and rolling friction,
Driving wheel 13 and the gap of groove planarea 16 are little, and the starting point especially in planarea 16, gap wants small, to reduce interval
The vibration of rotary turnplate guarantees to stop stablizing.Groove arc surface 17 and groove planarea 16 are tangent, set circular arc with the positioning of corresponding position
With one heart, after driving wheel 13 comes out from groove planarea 16,2 locating wheels 14 embrace positioning arc surface 19 quickly in face 19, so that
The precision and rigidity of positioning are improved.Groove arc surface 17 also functions to certain guide function so that driving wheel 13 with
The work handover of locating wheel 14 is more smooth and reliable.
Figure 26 is sheave intermittent rotary workbench in closed 5 station.Sheave intermittent rotary workbench 28 is installed in 5 stations
On turntable shell 29, it can be rotated relative to turntable shell 29, turntable shell 29 is fixed.
Figure 27 be after taking down shell out of obliquely downward is seen 5 stations sheave intermittent rotary workbench internal structure.Slow down
Machine or hydraulic motor 15 are mounted on turntable shell 29, it drives actuating arm 12 to rotate, the station inside groove of driving wheel 13 and 5 thereon
The groove interaction in intermittent rotary workbench 28 is taken turns, intermittent rotary movement is generated；Locating wheel 14 on actuating arm 12 and fixed
Positioning arc surface 19 on the boss 18 of position cooperates, and sheave intermittent rotary workbench 28 in 5 stations is enabled accurately to stop at work
Make on position.
Figure 28 is the plan view with the turntable 30 of different groove shapes.Turntable 30 with different groove shapes uses
The groove of different curve combination improves kinetic characteristic, by changing the contoured surface of groove, the angle of turntable when changing driving,
Angular speed and angular acceleration also change the Impact direction and stress size of driving wheel 13 and groove side surface, also change actively
The torque size and power output of axis 11 so that starting, operating, braking it is more steady, the stress of driving shaft 11 is smaller, consumption
Power is smaller.
In Figure 28, the turntable 30 with different groove shapes have 3 equally distributed stations, have thereon 3 by interior
Outside groove and 3 pairs of positioning convex platforms 18, the outer diameter of positioning arc surface 19 are 340 millimeters；The profile of groove is by following several sections
Composition: the radius of arc surface 17 is 160 millimeters, it is concentric with corresponding positioning arc surface 19, and what is connect with it is 340 milli of radius
The exterior arc surface of rice, is 35 millimeters of long planareas later, is 510 millimeters of radius of inner arc surface later, is 24.264 later
The long planarea of millimeter, is 40 millimeters of radius of inner arc surface later, and whole junctions is tangent line connection, smooth transition.
Figure 29 is the perspective view with the turntable 30 of different groove shapes.Figure 28 and Figure 29 only has different groove shapes
Turntable 30 a design scheme, the size and shape marked in figure only permitted one of kinds of schemes.According to this original
Reason can reach the angle of turntable, angular speed and angular acceleration when changing driving there are many scheme, change driving wheel 13 and ditch
The Impact direction and stress size of slot side change the torque size of driving shaft 11 and the purpose of power output.
Present invention is not limited to the embodiments described above, using structure same as or similar to the above embodiments of the present invention, and
Obtained other structures design, it is within the scope of the present invention.
Claims (12)
1. intermittent rotary workbench, driving shaft drives actuating arm to make rotating motion by the active shaft mounting hole on actuating arm,
There is a driving wheel on actuating arm, the groove interaction of this driving wheel and intermittent rotary turntable drives intermittent rotary turntable
It realizes starting, accelerate, slow down and stop, it is characterized in that: working as drive above driving shaft there are also 2 locating wheels on actuating arm
When driving wheel is located at the surface of driving shaft, 2 locating wheels are located at the left and right sides of driving shaft；When driving wheel is located at idle running angle
When spending, this 2 locating wheels embrace the positioning arc surface on the positioning convex platform on intermittent rotary turntable, so that intermittent rotary turntable is not
It is able to rotate, plays the role of accurate positioning；The groove of intermittent rotary turntable from the center of intermittent rotary turntable on side be in radiation
It is uniformly distributed, the number of groove minimum 3；The number of groove is also the number of station on intermittent rotary turntable；Every turn of driving shaft 1
Week, intermittent rotary disk rotate a station；The center of rotation of driving shaft and intermittent rotary turntable has an eccentricity, the number of station
The size of amount and eccentricity determines the size of driving wheel idle angular and starts the start position of driving, and driving wheel has a sky
Gyration, in this idle angular, driving shaft turns, and intermittent rotary turntable does not turn；There is the positioning of protrusion on intermittent rotary turntable
Boss has positioning arc surface on positioning convex platform, and positioning arc surface has position degree requirement in processing and assembly, when positioning arc surface
When being embraced by locating wheel, the center of circle and the driving shaft for positioning arc surface are coaxial；The positioning arc surface of protrusion on intermittent rotary turntable
Quantity determine there are several stations by station quantity, just have several pairs of raised positioning arc surfaces, each pair of positioning arc surface distinguishes position
In the front-rear direction of intermittent rotary turntable rotation direction, the length of arc surface is positioned not influence to drive and can make driving wheel and determine
Subject to the steady handover of position wheel.
2. intermittent rotary workbench according to claim 1, it is characterized in that: two positioning take turns to driving shaft mounting hole center
Apart from adjustable, the distance that driving shaft mounting hole center is taken turns to by adjusting two positioning eliminates mismachining tolerance and abrasion generates
Positioning accuracy is improved in gap.
3. intermittent rotary workbench according to claim 2 takes turns in driving shaft mounting hole it is characterized in that: adjusting two positioning
The distance of the heart, using eccentric locating axle, by rotational positioning wheel shaft, so that being mounted on the positioning in eccentric locating axle
The distance for taking turns to active shaft mounting hole center changes.
4. intermittent rotary workbench according to claim 1, it is characterized in that: driving wheel, the axis of rolling is can be used in locating wheel
It holds, rolling bearing can be used in the support wheel and centering wheel of intermittent rotary turntable, and the transmission of power passes through rolling bearing, can subtract
Few frictional force, saves energy, reduces abrasion, keeps high-precision.
5. intermittent rotary workbench according to claim 1, it is characterized in that: convex raised on intermittent rotary turntable
Platform is mounted on intermittent rotary turntable using the method inlayed.
6. intermittent rotary workbench according to claim 5, it is characterized in that: using cylindrical milling cutter on intermittent rotary turntable
Arc-shaped slot is milled out, then corresponding arc-shaped positioning convex platform is mounted in slot.
7. intermittent rotary workbench according to claim 1, it is characterized in that: adjusting screw hole (3M) for adjusting bearing peace
The front-rear position of (4) is shelved, to adjust the center of intermittent rotary turntable (1) and the compression strength of centering wheel (6)；Alignment bearing
Seat (5) can be slided up and down in bearing mount (4), so that can push down on intermittent rotary turntable (1) below centering wheel (6)
Rotary disk limitation edge (23)；Support wheel (7) is used to support intermittent rotary turntable (1) and the grinding tool installed thereon, workpiece
Weight, and adjust the level and height of intermittent rotary turntable (1)；Supporting bearing base (8) has supporting block (9) below；Supporting block (9)
It is elastic material, by the height and preload the tightening degree and adjust support wheel (7) that adjust mounting screw on supporting bearing base (8)
Power.
8. intermittent rotary workbench according to claim 1, it is characterized in that: centering wheel (6) can bear radial load again
Axial load can be born, centering wheel case (6c) uses softer material, makes to wear and deform to occur in centering wheel case (6c),
Reduce the outer circle on intermittent rotary turntable (1) and the abrasion of rotary disk limitation edge (23), be held in position precision, improves and use the longevity
Life.
9. intermittent rotary workbench according to claim 1, it is characterized in that: being provided with below intermittent rotary turntable (1)
Groove, groove are made of 3 pairs of planareas (16) and 3 arc surfaces (17), and the distance between two opposite planareas (16) are slightly
Greater than the diameter of driving wheel (13), so that driving wheel (13) can freely roll in slot；The trend of 3 pairs of planareas (16) be by
The center of intermittent rotary turntable (1) is radial outward to be uniformly distributed；There is arc surface (17) rank between adjacent planarea (16)
It connects；Arc surface (17) and planarea (16) are tangent and concentric with the positioning arc surface (19) on the positioning convex platform of same station (18)；
When working properly, when locating wheel (14) embraces positioning arc surface (19), theoretically, the center of circle of arc surface (19) is positioned again
It is coaxial with driving shaft (11)；It is that 3 station intermittent rotary workbench are described above.
10. intermittent rotary workbench according to claim 9, it is characterized in that: for there is the work of the intermittent rotary of N number of station
Platform, structure feature are described consistent with claim 9, and the number of stations 3 in claim 9 is only replaced with N.
11. intermittent rotary workbench according to claim 1, it is characterized in that: intermittent rotary workbench uses closed knot
Structure.
12. intermittent rotary workbench according to claim 1, it is characterized in that: intermittent rotary turntable uses different curve
Combined groove improves kinetic characteristic, by changing the contoured surface of groove, the angle of turntable when changing driving, angular speed and
Angular acceleration also changes the Impact direction and stress size of driving wheel (13) Yu groove side surface, also changes driving shaft (11)
Torque size and power output.
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| CN201510147281.8A CN106142027B (en) | 2015-03-23 | 2015-03-23 | Interior sheave intermittent rotary workbench |
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| CN201510147281.8A CN106142027B (en) | 2015-03-23 | 2015-03-23 | Interior sheave intermittent rotary workbench |
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| CN106142027B true CN106142027B (en) | 2018-12-18 |
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