CN107387698A - A kind of cam correction mechanism - Google Patents
A kind of cam correction mechanism Download PDFInfo
- Publication number
- CN107387698A CN107387698A CN201710747753.2A CN201710747753A CN107387698A CN 107387698 A CN107387698 A CN 107387698A CN 201710747753 A CN201710747753 A CN 201710747753A CN 107387698 A CN107387698 A CN 107387698A
- Authority
- CN
- China
- Prior art keywords
- cam
- correction mechanism
- driving member
- roller post
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of cam correction mechanism, is related to feed screw nut motion and mends length measuring mechanism technical field.The cam correction mechanism includes being used for the cam for jacking up roller post, and transmission component is provided between cam and roller post, and transmission component includes driving member and limits the guide sleeve in drive member path, and driving member one end is provided with pulley, and pulley is bonded with the outer rim of cam.This programme reduces cam in each abrasion mended during length is moved.
Description
Technical field
Moved the present invention relates to feed screw nut and mend length measuring mechanism field, more particularly to a kind of cam correction mechanism.
Background technology
Cam mechanism（cam mechanism）Usually by cam, driven member（follower）With three component groups of frame
Into higher pair mechanism.Cam generally makees continuous constant velocity rotation, and driven member designs according to requirements makes it obtain certain rule
Motion cam mechanisms can realize the movement needs of complexity, be widely used in various automated and semi-automatic mechanical devices.
Cam mechanism is generally made up of two part moving parts, i.e. cam and follower (follower), and both are both secured to seat
On frame.Cam gear is quite diverse, therefore nearly all any action can produce through a thus mechanism.
Cam can be defined as a parts with curved surface or crank slot, using its swing or revolution, can make another group
Part-follower provides motion set in advance.The big portion in path of follower is limited in a chute, covers motion so that acquisition is past.
In the stroke of its reply, sometimes by the weight of itself, but some mechanisms is obtain definite action, often using spring as
The power of reply, some then utilize guide groove, it is moved on specific path.
Application No. CN201620683792.1, the applying date are 2016.06.29 a kind of cam and cam mechanism, its
Cam includes cam body and is arranged at the contour surface for being used to be engaged with driven member on cam body, contour surface bag
The first contact surface and the second contact surface of smooth connection are included, the first contact surface is used to eject driven member, and the second contact surface is used for
Driven member is retracted, be additionally provided with cam body in side of second contact surface away from the first contact surface for driven member with
One end of contour surface contact carries out spacing stopper slot, along smooth connection on the second contact surface and stopper slot；Above-mentioned cam
Open up a stopper slot in side of second contact surface away from the first contact surface, electric motor bicycle with folding in a folded configuration, driven member with
One end of contour surface contact will coordinate with stopper slot, and the actuator being connected to cam and with cam, that is, cushion pipe are carried out
It is spacing, avoid it from being rotated when being given a shock, and then realize and effectively locked to the electric motor bicycle with folding of folded state.
Application No. CN201420076742.8, the applying date are a kind of 2014.02.21 cam, more particularly to a kind of are existed
Lift in positive type cam opening device, backhaul use the High speed cam of fair curve.Including main cam, auxiliary cam, the master
Cam center hole, six cam orientation holes are designed with cam and the auxiliary cam, six cam orientation holes are uniformly distributed
On the concentric circles of the cam center hole, the main cam is provided with cam lifting curve, and the cam lifting curve includes
Starting amendment section, principal curve section, terminated site amendment section, the principal curve section both ends respectively with the starting amendment section, described
Terminated site amendment section is connected using five item fair curves.The beneficial effects of the invention are as follows：Made using simple cam structure
Cam is obtained continuously, to reduce and resonate with mechanism, reduce the soft impulse to mechanism using course motion change.
Application No. CN201610489930.7, the applying date are that 2016.06.29 one kind is used for ball screw assembly, stroke
The cam correction mechanism of error, including the planker side plate and a framework that two block gaps erect, the long set both ends are by plane axis
Hold and be connected with two blocks of planker side plates, the long set middle part of sliding channel, which stretches out, is installed with a roller post, and the roller post is different from length
One end of set is arranged with bearing, and the bearing, which is adjacent to, to be supported on cam, and one piece of friction plate is provided between bearing and cam.
By the present invention in that nut is connected with planker, when ball screw rotates, nut drives planker axially to do straight line along ball screw
It is mobile, a roller post is fixed on nut, roller column end installation square bearing, square bearing, which is adjacent to, to be supported on friction plate,
Jointly and cam contact, by top lift during cam rotation, cam heads on bearing and moved up so that nut for bearing and friction plate
Produce an auxiliary to rotate, linearity error and circular error to stroke are modified compensation, stroke accuracy greatly improved.
It is a kind of existing cam correction mechanism with reference to Fig. 1 and Fig. 2.
Wherein, nut 3 is combined with ball screw 4, long set 2 is arranged with outside nut 3, long set 2 and framework 1 are be hinged.Work as rolling
When ballscrew 4 rotates, nut 3 drives length direction of the framework 1 along ball screw 4 to move.Long set 2 has overhang roller post 5, rolls
The end of wheel post 5 is controlled by cam 10.When cam 10 rotates, the intermittent end by roller post 5 jacks up so that roller post 5
Drive long set 2 to rotate, and then drive nut 3 to rotate, complete once to mend long motion.
Because motion path when one end that roller post 5 is in contact with cam is jacked up is curved path, curved path
The center of circle is the central shaft of ball screw 4, and radius is the distance with arriving ball screw 4 at cam contact on roller post 5.
And cam 10 is fixed on a vertical rotation with surface, thus cam 10 jack up during roller post 5 with roller post 5
Relative slide occurs so that cam 10 easily wears, and roller post 5 is jacked up next height less and less, is grown so as to cause to mend
The effect of amendment is worse and worse.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of cam correction mechanism, drop
The low abrasion for mending long motion cam every time.
In order to solve the above technical problems, the present invention provides a kind of cam correction mechanism, including for jacking up roller post
Cam, is provided with transmission component between cam and roller post, transmission component includes driving member and limits leading for drive member path
To set, driving member one end is provided with pulley, and pulley is bonded with the outer rim of cam.
Technique effect：By setting up transmission component, the top lift of interval caused by cam is passed into roller post, and pass
In dynamic component, be bonded contact all the time with cam is pulley.It is rolling friction between pulley and cam, reduces and mend long fortune every time
The abrasion of dynamic cam.
The technical scheme that further limits of the present invention is：The driving member other end is provided with dome.
Further, guide sleeve surrounds the curved channel for drive member, and curved channel is concyclic with curved path.
A kind of preceding described cam correction mechanism, driving member are the transmission knee to match with guide sleeve.
A kind of preceding described cam correction mechanism, dome are bonded with the outer surface of roller post.
A kind of preceding described cam correction mechanism, the radian of curved channel are not less than the radian of curved path.
A kind of preceding described cam correction mechanism, pulley are fixed on the end face of driving member by support.
A kind of preceding described cam correction mechanism, guide sleeve are fixed on framework.
The beneficial effects of the invention are as follows：
1st, the sliding friction that cam is subject to by the present invention becomes rolling friction, reduces the abrasion journey for mending long motion cam every time
Degree.
2nd, guide sleeve and arching trajectory are located on same circle in the present invention, make almost relatively quiet between roller post and dome
Only, the friction between roller post and dome is reduced.
3rd, by setting up transmission component, the top lift of interval caused by cam is passed into roller post, and transmission component
In, be bonded contact all the time with cam is pulley, is rolling friction between pulley and cam, reduces and mends long motion convexity every time
The abrasion of wheel.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the diagrammatic cross-section of the present invention.
Wherein：1st, framework；2nd, long set；3rd, nut；4th, ball screw；5th, roller post；6th, pull bar；7th, rod set；8th, bearing；9、
Extension spring；10th, cam；11st, guide sleeve；12nd, it is driven knee；13rd, pulley；14th, dome.
Embodiment
A kind of cam correction mechanism that the present embodiment provides, structure is as shown in the figure.
The cam correction mechanism, including for jacking up the cam 10 of roller post, transmission is provided between cam 10 and roller post 5
Component.
Transmission component includes driving member and limits the guide sleeve 11 in drive member path, and driving member one end is provided with pulley
13, pulley 13 is bonded with the outer rim of cam.
By setting up transmission component, the top lift of interval caused by cam is passed into roller post 5, and transmission component
In, be bonded contact all the time with cam is pulley 13.
It is rolling friction between pulley 13 and cam, reduces the abrasion for mending long motion cam every time.
Wherein, the driving member other end is provided with dome 14.Guide sleeve 11 surrounds the curved channel for drive member, and arc leads to
Road is concyclic with curved path.
Driving member is the transmission knee 12 to match with guide sleeve 11.Dome 14 is bonded with the outer surface of roller post.Arc
The radian of passage is not less than the radian of curved path.Pulley 13 is fixed on the end face of driving member by support.Guide sleeve 11 is solid
It is scheduled on framework.
Wherein, curved path is to be mentioned in background technology, and roller post is by the movement locus at jack-up.
Curved channel and curved path are located on same circle so that make between roller post and dome 14 almost geo-stationary,
Reduce the friction between roller post and dome 14.
In addition to the implementation, the present invention can also have other embodiment；It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims, this specific embodiment is only explanation of the invention, and it is simultaneously
It is not limitation of the present invention, those skilled in the art can make to the present embodiment as needed after this specification is read
There is no the modification of creative contribution, but as long as all being protected in scope of the presently claimed invention by Patent Law.
Claims (8)
1. a kind of cam correction mechanism, including for jacking up roller post（5）Cam（10）, it is characterised in that：The cam
（10）With the roller post（5）Between be provided with transmission component, the transmission component includes driving member and limits the driving member fortune
The guide sleeve in dynamic path（11）, described driving member one end is provided with pulley（13）, the pulley（13）With the cam（10）It is outer
Edge is bonded.
A kind of 2. cam correction mechanism according to claim 1, it is characterised in that：The driving member other end is provided with dome
（14）.
A kind of 3. cam correction mechanism according to claim 2, it is characterised in that：The guide sleeve（11）Surround described in confession
The curved channel of drive member, the curved channel and curved path are concyclic.
A kind of 4. cam correction mechanism according to claim 3, it is characterised in that：The driving member be and the guide sleeve
（11）The transmission knee to match（12）.
A kind of 5. cam correction mechanism according to claim 4, it is characterised in that：The dome（14）With the roller post
（5）Outer surface fitting.
A kind of 6. cam correction mechanism according to claim 5, it is characterised in that：The radian of the curved channel is not less than
The radian of curved path.
A kind of 7. cam correction mechanism according to claim 6, it is characterised in that：The pulley（13）Fixed by support
On the end face of the driving member.
A kind of 8. cam correction mechanism according to claim 7, it is characterised in that：The guide sleeve（11）It is fixed on framework
（1）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747753.2A CN107387698A (en) | 2017-08-28 | 2017-08-28 | A kind of cam correction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747753.2A CN107387698A (en) | 2017-08-28 | 2017-08-28 | A kind of cam correction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387698A true CN107387698A (en) | 2017-11-24 |
Family
ID=60347022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710747753.2A Pending CN107387698A (en) | 2017-08-28 | 2017-08-28 | A kind of cam correction mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387698A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1588955A1 (en) * | 1988-10-10 | 1990-08-30 | Предприятие П/Я В-8670 | Cam mechanism |
| JP2001305874A (en) * | 2000-04-18 | 2001-11-02 | Ricoh Co Ltd | Image forming device |
| CN202239417U (en) * | 2011-09-23 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Improved structure for distributor cam transmission |
| CN103016663A (en) * | 2011-09-22 | 2013-04-03 | 上海雅盟机械制造有限公司 | Device realizing transfer of acting force through cam track change |
| CN106065928A (en) * | 2016-06-29 | 2016-11-02 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism for ball screw assembly, journey error |
| CN207333608U (en) * | 2017-08-28 | 2018-05-08 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism |
-
2017
- 2017-08-28 CN CN201710747753.2A patent/CN107387698A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1588955A1 (en) * | 1988-10-10 | 1990-08-30 | Предприятие П/Я В-8670 | Cam mechanism |
| JP2001305874A (en) * | 2000-04-18 | 2001-11-02 | Ricoh Co Ltd | Image forming device |
| CN103016663A (en) * | 2011-09-22 | 2013-04-03 | 上海雅盟机械制造有限公司 | Device realizing transfer of acting force through cam track change |
| CN202239417U (en) * | 2011-09-23 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Improved structure for distributor cam transmission |
| CN106065928A (en) * | 2016-06-29 | 2016-11-02 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism for ball screw assembly, journey error |
| CN207333608U (en) * | 2017-08-28 | 2018-05-08 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
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| RJ01 | Rejection of invention patent application after publication |