CN205852286U - A kind of numerical-control equal-division rotary table - Google Patents
A kind of numerical-control equal-division rotary table Download PDFInfo
- Publication number
- CN205852286U CN205852286U CN201620871523.8U CN201620871523U CN205852286U CN 205852286 U CN205852286 U CN 205852286U CN 201620871523 U CN201620871523 U CN 201620871523U CN 205852286 U CN205852286 U CN 205852286U
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- tightly
- worm
- valve port
- work turning
- hold
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Abstract
This utility model provides a kind of numerical-control equal-division rotary table.Wherein, including bearing, Work turning table, worm screw and drive mechanism, worm screw drives Work turning table to rotate via drive mechanism.Also including: worm set, one end of worm screw is rotatably installed on worm set；Holding set tightly, be installed on bearing, worm set is installed on to be held tightly inside set；And hold device tightly, hold device tightly and be configured to controllably make to hold set tightly when Work turning table rotates and hold worm set tightly；And make to hold set tightly when Work turning table positions and unclamp worm set, to allow worm screw to move along the axis direction of worm screw.The accurate transfer of motion can be ensured when Work turning table rotates, make worm screw realize automatic axial to float when Work turning table positions, it is thus possible to solve to be accurately positioned when worm and gear indexes with Work turning table to produce the problem interfered, worm and wormwheel is avoided to interfere impact pinpoint on Work turning table, being accurately positioned and indexing of guarantee Work turning table is reliable, improves reliability.
Description
Technical field
This utility model relates to a kind of Digit Control Machine Tool attachment technique field, particularly relates to a kind of numerical-control equal-division revolution work
Platform.
Background technology
Mechanical industry be the infrastructural industries of national economy be also the equipment industry of national economy, the developing water of mechanical industry
Putting down and affect technological progress and the industry development that even decide related industry department to a great extent, machine tool industry is then machinery
The basis of industry and important component part, Digit Control Machine Tool functional part and manufacturing technology thereof are again that Digit Control Machine Tool has been rely height
Effect, the important core ingredient that high-precision and complex parts processing is indispensable, be the essential condition realizing industrial automation.Number
Control rotary table is as the critical function parts of Digit Control Machine Tool, and the quality of its performance directly affects the overall performance of lathe.Existing
Some NC rotary tables are to utilize servomotor driven gear group, and worm and wormwheel drives Work turning table to rotate, but invention
People find existing numerical control rotary Work turning table precision it is difficult to ensure that.
Utility model content
Inventor of the present utility model think existing NC rotary table precision it is difficult to ensure that a reason be snail
The machining accuracy of bar pair may be not.Especially, inventor is additionally considered that existing NC rotary table indexes at Work turning table
During location, Work turning table is likely to require one low-angle of rotation, forwards ideal position to, now needs worm gear wheel, but this
Time, worm screw is fixing, and worm-drive is self-locking, and worm gear can not drive worm screw to rotate, and also result in precision inadequate.This
Just require in the case of Zhong that the coarse positioning of Work turning table must accurately, so that being accurately positioned during indexing does not the most rotate.Enter
One step ground, even if the coarse positioning of Work turning table is quite accurate, in use, due to dead-center position adjustment and driving error etc.
Reason, also can often occur that worm and gear is accurately positioned generation and interferes when indexing with Work turning table, cause Work turning table to index not
Accurate and worm and gear damages.
Therefore, the purpose of this utility model is intended to overcome at least one defect of existing NC rotary table, it is provided that
The numerical-control equal-division rotary table of a kind of novelty, it is dry that it can solve the problem that worm and gear is accurately positioned generation with Work turning table when indexing
The problem related to, it is ensured that being accurately positioned and indexing of Work turning table is reliable, improves reliability.
To achieve these goals, this utility model provides a kind of numerical-control equal-division rotary table, including bearing, work
Turntable, worm screw and drive mechanism, described worm screw drives described Work turning table to rotate via described drive mechanism.Especially, numerical control
Equal-division rotary table also includes:
Worm set, one end of described worm screw is rotatably installed on described worm set；
Hold set tightly, be installed on described bearing, described worm set be installed on described in hold tightly inside set；And
Hold device tightly, described in hold tightly device be configured to controllably to make when described Work turning table rotates described in hold set tightly and hold tightly
Described worm set；And hold set tightly described in making when described Work turning table positions and unclamp described worm set, to allow described worm screw
Axis direction along described worm screw moves.
Further, hold tightly described in and between the outside of set and described bearing, be provided with pressure chamber；
Described device of holding tightly includes that pressure source and pressure piping, described pressure piping connect with described pressure chamber, with to described
Pressure intracavity infusion fluid or gas, make described in hold set tightly and hold described worm set tightly.
Further, described in hold device tightly and also include reversal valve, described pressure source is via described reversal valve and described pressure
Pipeline connection.
Further, also include positioner, be configured to controllably realize described Work turning table indexing location, and described fixed
Position device have tight pipeline of stopping that tight chamber of stopping connects with described tight chamber of stopping, unclamp chamber and with described unclamp that chamber connects unclamp
Pipeline；
Described reversal valve at least has the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and makes the most simultaneously
Described first valve port connects with described second valve port, described 3rd valve port connects with described 4th valve port, or makes described simultaneously
One valve port connects with described 3rd valve port, described second valve port connects with described 4th valve port；
Described first valve port and described pressure-source communication, described second valve port unclamps pipeline and described manometer tube with described
Road all connects, described 3rd valve port and described tight pipeline connection of stopping, described 4th valve port configuration oil return.
Further, described positioner also includes duplex fluted disc, rotary fluted disc, fixed gear plate and tight piston of stopping；
Described rotary fluted disc is fixing with described Work turning table to be connected；
Described fixed gear plate is installed on described bearing；
Described stop tight chamber and described unclamp chamber be positioned at described in stop the both sides of tight piston；
Described duplex fluted disc is stopped tight piston described in being installed on, with under the drive of described tight piston of stopping with described rotary fluted disc
And be simultaneously engaged with described fixed gear plate or be disengaged from simultaneously.
Further, hold set described in tightly to be made up of elastomeric material.
Further, holding set described in tightly is thin cylinder.
Further, described drive mechanism includes:
Main shaft, is rotatably installed on described bearing, and described Work turning table is installed on one end of described main shaft；
Worm gear, is arranged at the other end of described main shaft, itself and described worm engaging.
The numerical-control equal-division rotary table that this utility model provides, holds set tightly because having and holds device tightly, turns in work
Platform makes to hold set tightly when rotating and holds worm set tightly, it is ensured that the accurate transfer of motion.Make to hold set tightly to unclamp when Work turning table is braked
Worm set, to allow worm screw to move along the axis direction of worm screw, even if worm screw realizes automatic axial and floats such that it is able to solve snail
Worm and gear produces, with being accurately positioned of Work turning table, the problem interfered, it is to avoid worm and wormwheel is interfered pinpoint to Work turning table
Impact, it is ensured that being accurately positioned and indexing of Work turning table is reliable, improves reliability.
Further, the numerical-control equal-division rotary table provided due to this utility model holds device tightly and positioner makes
Use a set of hydraulic system, connected by special pipeline, only by the commutation of reversal valve, so that it may realize the engagement of positioner with
The axial float of worm screw synchronizes to carry out, and the axial restraint with worm screw that disengages of positioner is Tong Bu carried out, simple in construction, controls
System is reliable convenient.
Accompanying drawing explanation
Describe in detail more of the present utility model specifically real the most by way of example, and not by way of limitation
Execute example.Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that
These accompanying drawings are not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic elevational view of the numerical-control equal-division rotary table according to one embodiment of this utility model；
Fig. 2 is the schematic plan of the numerical-control equal-division rotary table according to one embodiment of this utility model；
Fig. 3 is the schematic expanded view in Fig. 2 at A；
Fig. 4 is the schematic block diagram of the numerical-control equal-division rotary table according to one embodiment of this utility model.
Detailed description of the invention
According to below in conjunction with the accompanying drawing detailed description to this utility model specific embodiment, those skilled in the art will be more
Add clear of the present utility model above-mentioned and other purposes, advantage and feature.
Fig. 1 is the schematic elevational view of the numerical-control equal-division rotary table according to one embodiment of this utility model.Such as Fig. 1
Shown in, and referring to figs. 2 to Fig. 4.This utility model embodiment provides a kind of numerical-control equal-division rotary table, and it can include bearing
10, Work turning table 20, worm screw 30, worm set 40, hold set 50 tightly, hold device and drive mechanism tightly.Hold set 50 tightly and be installed on bearing
10.Worm set 40 is installed on to be held tightly inside set 50.One end of worm screw 30 is rotatably installed on worm set 40 can be via driver
Structure drives Work turning table 20 to rotate.Especially, hold device tightly to be configured to controllably make when Work turning table 20 rotates to hold set 50 tightly
Hold worm set 40 tightly；And make to hold set 50 tightly when Work turning table 20 positions and unclamp worm set 40, to allow worm screw 30 along worm screw
The axis direction motion of 30.It is to say, numerical-control equal-division rotary table of the present utility model, make when Work turning table 20 rotates
Hold set 50 tightly and hold worm set 40 tightly, it is ensured that the accurate transfer of motion.Make to hold set 50 tightly when Work turning table 20 positions and unclamp snail
Bar set 40, to allow worm screw 30 to move along the axis direction of worm screw 30, even if worm screw 30 realizes automatic axial and floats such that it is able to
Solution worm and gear 30 is accurately positioned when indexing with Work turning table 20 and produces the problem interfered, it is ensured that accurately determining of Work turning table 20
Position and indexing are reliable, improve reliability.And worm screw 30 and worm gear 31 etc. can also be protected, prevent mechanical damage.This numerical control
Equal-division rotary table is also referred to as worm screw 30 can play formula anti-interference numerical-control equal-division rotary table.
In embodiments more of the present utility model, hold tightly and between outside and the bearing 10 of set 50, be provided with pressure chamber 51.Embrace
Tight device includes that pressure source and pressure piping 61, pressure piping 61 connect with pressure chamber 51, with infusion fluid or gas in pressure chamber 51
Body, makes to hold set 50 tightly and holds worm set 40 tightly.
Preferably, pressure source is oil pump.Further, hold set 50 tightly to be made up of elastomeric material.Such as, set 50 is held tightly for thin
Wall cylinder, is fixed on bearing 10 by screw.Holding device tightly and may also include reversal valve 62, pressure source is via reversal valve 62 and pressure
Pipeline 61 connects, to be realized the oil-feed in pressure chamber 51 by a pipeline and to drain the oil.It is to say, when needs oil-feed, oil pump leads to
Crossing reversal valve 62 input hydraulic pressure oil in pressure chamber 51, when needs are drained the oil, reversal valve 62 commutates, and adjusts motion worm screw 30 self
Drive under effect that is lower and/or that hold set 50 its own resilient tightly, hydraulic oil outflow in pressure chamber 51, can enter via reversal valve 62
Reclaim fuel tank.
In alternate embodiment more of the present utility model, hold set 50 tightly and can have extension along its length and pass through
Wearing the breach at its two ends, holding device tightly can be a stretching device, and two edges being made breach by connector are close to each other or remote
From realizing holding tightly or unclamping worm set 40.
In embodiments more of the present utility model, drive mechanism includes main shaft 11 and worm gear 31.Main shaft 11 is rotationally
It is installed on bearing 10, and Work turning table 20 is installed on one end of main shaft 11.Such as, main shaft 11 can be vertically arranged, Work turning table 20
It is arranged at the upper end of main shaft 11.Worm gear 31 can be arranged at the other end of main shaft 11 by screw, and it engages with worm screw 30.Such as,
Worm gear 31 is arranged at the lower end of main shaft 11.Numerical-control equal-division rotary table may also include servomotor 12 and driving gear set.Pass
Moving gear group can be one group of spur gear, so that the rotary motion that servomotor 12 exports is transferred to worm screw 30.
In embodiments more of the present utility model, numerical-control equal-division rotary table also includes positioner.Positioner
It is configured to realize Work turning table 20 indexing location.Preferably, positioner can have duplex fluted disc 71, rotary fluted disc 72 and fix
Fluted disc 73.Rotary fluted disc 72 is fixing with Work turning table 20 to be connected, and specifically, rotary fluted disc 72 can be fixedly installed in work by screw
Make the lower surface of turntable 20.Fixed gear plate 73 is installed on bearing 10, can be concordant with rotary fluted disc 72.Duplex fluted disc 71 can be configured to
It is simultaneously engaged with rotary fluted disc 72 and with fixed gear plate 73, is accurately positioned；Or be disengaged from, to allow work to turn simultaneously
Platform 20 rotates.During work, by worm screw 30 worm-drive, three fluted discs are accurately positioned, and specifically servomotor 12 passes through worm screw
30 worm-drive, drive Work turning table 20 to turn round, it is achieved coarse positioning, after coarse positioning, by duplex fluted disc 71 and rotary fluted disc 72
And be simultaneously engaged with fixed gear plate 73, it is achieved the positioning function of Work turning table 20.Fluted disc has high dividing as indexing component
Degree precision and repeatable accuracy, thus ensure indexing accuracy and the repeatable accuracy of Work turning table 20.
Further, available hydraulic pressure or air pressure promote rotary fluted disc 72 and are simultaneously engaged with fixed gear plate 73 or simultaneously
It is disengaged from.Positioner also can have stop tight chamber and connect with tight chamber of stopping tight pipeline 63 of stopping, unclamp chamber and connect with unclamping chamber
Unclamp pipeline 64 and tight piston 65 of stopping.Stop tight chamber and unclamp chamber and be positioned at the both sides of tight piston 65 of stopping.Duplex fluted disc 71 is installed on
Stop tight piston 65, with under the drive of tight piston 65 of stopping with rotary fluted disc 72 and be simultaneously engaged with fixed gear plate 73 or take off simultaneously
From engagement.
Especially, for the simple in construction of numerical-control equal-division rotary table, controlling simple and reliable, reversal valve 62 at least has
First valve port, the second valve port, the 3rd valve port and the 4th valve port, such as electromagnetic valve, cross valve, and reversal valve 62 can make the most simultaneously
First valve port and the connection of the second valve port, the 3rd valve port and the connection of the 4th valve port, or make the first valve port and the 3rd valve port connect, simultaneously
Second valve port and the connection of the 4th valve port.First valve port and pressure-source communication, the second valve port connects with unclamping pipeline 64, the 3rd valve port
With stop tight pipeline 63 and pressure piping 61 all connects, the 4th valve port configuration oil return.
Numerical-control equal-division rotary table is so arranged, and can make to hold device tightly and positioner uses a set of hydraulic/pneumatic system
System, is connected by special pipeline, only by the commutation of reversal valve 62, so that it may realize the location of positioner and the axle of worm screw 30
Carry out to floating synchronization, and the axial restraint with worm screw 30 that unclamps of positioner is Tong Bu carried out, simple in construction, controls reliable
Convenient.Float by making worm screw 30 realize automatic axial, it is to avoid worm screw 30 worm gear is interfered duplex fluted disc 71 and rotary fluted disc 72
And the impact being simultaneously engaged with fixed gear plate 73, i.e. avoid the impact of indexing accurate on fluted disc, thus realize high indexing essence
Degree.
The numerical-control equal-division rotary table work process of this utility model embodiment can be as follows: system sends instruction, duplex
Fluted disc 71 disengages, and Work turning table 20 completes to unclamp action, meanwhile with to unclamp chamber through, presses chamber 51 oil-feed, in oil pressure effect
Under, hold set 50 tightly and hold tightly at worm set 40, worm set 40 is fixed with bearing 10, thus worm screw 30 axial location is fixed.Watch
Taking motor 12 can drive Work turning table 20 to rotate by gear worm 30 worm gear, drives Work turning table 20 to forward the angle set to,
System sends tight instruction of stopping, reversal valve 62 action, tight chamber oil-feed of stopping, and unclamps chamber with reclaiming fuel tank and connects oil return, tight piston 65 of stopping
Moving up, drive duplex fluted disc 71 to move up, duplex fluted disc 71 completes tightening position of stopping；Meanwhile, in pressure chamber 51, pressure oil is let out
Pressure, holds set tightly 50 because of elastic reset, unclamps holding tightly worm set 40, worm set 40 and to hold set 50 tightly freely slidable, worm screw
30 can be free to move axially, and Work turning table 20 gyratory directions has fluted disc to position completely, do not have the place that other are interfered, and protect
Card Work turning table 20 reliably positions.It is to say, after servomotor 12 is rotated in place, worm screw 30 stops the rotation, hold set 50 tightly
Unclamping, worm set 40 can slide in holding set 50 tightly, and Work turning table 20 is stopped tightly, and rotary fluted disc 72 drives main shaft 11 to forward to correctly
Position, worm screw 30 can be followed worm gear and be moved axially worm screw 30, it is ensured that three fluted discs reliably position, and also will not damage worm gear 31 snail
Bar 30.
So far, although those skilled in the art will appreciate that the most detailed illustrate and describe of the present utility model many
Individual exemplary embodiment, but, in the case of without departing from this utility model spirit and scope, still can be public according to this utility model
The content opened directly determines or derives other variations or modifications of many meeting this utility model principle.Therefore, this practicality is new
The scope of type is it is understood that and regard as covering other variations or modifications all these.
Claims (8)
1. a numerical-control equal-division rotary table, including bearing, Work turning table, worm screw and drive mechanism, described worm screw is via institute
Stating drive mechanism drives described Work turning table to rotate；It is characterized in that, also include:
Worm set, one end of described worm screw is rotatably installed on described worm set；
Hold set tightly, be installed on described bearing, described worm set be installed on described in hold tightly inside set；
Hold device tightly, described in hold tightly device be configured to controllably to make when described Work turning table rotates described in hold set tightly and hold tightly described
Worm set；And hold set tightly described in making when described Work turning table positions and unclamp described worm set, to allow described worm screw along institute
State the axis direction motion of worm screw.
Numerical-control equal-division rotary table the most according to claim 1, it is characterised in that
Pressure chamber it is provided with between the described outside holding set tightly and described bearing；
Described device of holding tightly includes that pressure source and pressure piping, described pressure piping connect with described pressure chamber, with to described pressure chamber
Interior infusion fluid or gas, make described in hold set tightly and hold described worm set tightly.
Numerical-control equal-division rotary table the most according to claim 2, it is characterised in that described in hold tightly device also include commutation
Valve, described pressure source connects with described pressure piping via described reversal valve.
Numerical-control equal-division rotary table the most according to claim 3, it is characterised in that also include:
Positioner, is configured to controllably to realize described Work turning table indexing location, and described positioner have stop tight chamber and
The tight pipeline of stopping of described tight chamber connection of stopping, unclamp chamber and with described unclamp that chamber connects unclamp pipeline；
Described reversal valve at least has the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and makes described the most simultaneously
First valve port connects with described second valve port, described 3rd valve port connects with described 4th valve port, or makes described first valve simultaneously
Mouth connects with described 3rd valve port, described second valve port connects with described 4th valve port；
Described first valve port and described pressure-source communication, described second valve port unclamps pipeline and described pressure piping is equal with described
Connection, described 3rd valve port and described tight pipeline connection of stopping, described 4th valve port configuration oil return.
Numerical-control equal-division rotary table the most according to claim 4, it is characterised in that
Described positioner also includes duplex fluted disc, rotary fluted disc, fixed gear plate and tight piston of stopping；
Described rotary fluted disc is fixing with described Work turning table to be connected；
Described fixed gear plate is installed on described bearing；
Described stop tight chamber and described unclamp chamber be positioned at described in stop the both sides of tight piston；
Described duplex fluted disc is stopped tight piston described in being installed on, with under the drive of described tight piston of stopping with described rotary fluted disc and
It is simultaneously engaged with described fixed gear plate or is disengaged from simultaneously.
Numerical-control equal-division rotary table the most according to claim 1, it is characterised in that
Described set of holding tightly is made up of elastomeric material.
Numerical-control equal-division rotary table the most according to claim 6, it is characterised in that
Described set of holding tightly is thin cylinder.
Numerical-control equal-division rotary table the most according to claim 1, it is characterised in that described drive mechanism includes:
Main shaft, is rotatably installed on described bearing, and described Work turning table is installed on one end of described main shaft；
Worm gear, is arranged at the other end of described main shaft, itself and described worm engaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871523.8U CN205852286U (en) | 2016-08-12 | 2016-08-12 | A kind of numerical-control equal-division rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871523.8U CN205852286U (en) | 2016-08-12 | 2016-08-12 | A kind of numerical-control equal-division rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205852286U true CN205852286U (en) | 2017-01-04 |
Family
ID=57593514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620871523.8U Withdrawn - After Issue CN205852286U (en) | 2016-08-12 | 2016-08-12 | A kind of numerical-control equal-division rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205852286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112571A (en) * | 2016-08-12 | 2016-11-16 | 烟台环球机床装备股份有限公司 | A kind of numerical-control equal-division rotary table |
-
2016
- 2016-08-12 CN CN201620871523.8U patent/CN205852286U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112571A (en) * | 2016-08-12 | 2016-11-16 | 烟台环球机床装备股份有限公司 | A kind of numerical-control equal-division rotary table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170104 Effective date of abandoning: 20180227 |