CN105458307B - A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism - Google Patents
A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism Download PDFInfo
- Publication number
- CN105458307B CN105458307B CN201610028058.6A CN201610028058A CN105458307B CN 105458307 B CN105458307 B CN 105458307B CN 201610028058 A CN201610028058 A CN 201610028058A CN 105458307 B CN105458307 B CN 105458307B
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- CN
- China
- Prior art keywords
- main shaft
- sleeve
- precision
- hobboing cutter
- drive mechanism
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F11/00—Making worm wheels, e.g. by hobbing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/10—Gear cutting
- Y10T409/101431—Gear tooth shape generating
- Y10T409/10159—Hobbing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/10—Gear cutting
- Y10T409/101431—Gear tooth shape generating
- Y10T409/107473—Making a noncircular gear, worm, rotor, or a planar-faced gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism, including big bracket, slide, small bracket, main shaft and sleeve, the slide is connected with big bracket, the small bracket is slidably on slide, the sleeve is fixed on small bracket, described main shaft one end is connected by axle sleeve with slide, and its other end is connected by driving gearshaft with big bracket；Hydrostatic bearing structure is formed between the axle sleeve and main shaft；The driving gearshaft is provided with bindiny mechanism, for main shaft and travelling gear axis connection and main shaft can be made to follow driving gearshaft together with revolution and moved in radial directions relative to the axial direction of driving gearshaft.Hobboing cutter main shaft support drive mechanism of the present invention improves the rigidity and precision of main axle structure, extends its service life.
Description
Technical field
The invention belongs to gear-hobbing machine parts technical field, and in particular to a kind of high rigidity, high-precision hobboing cutter main shaft support
Drive mechanism.
Background technology
Hobboing cutter main shaft is the element relationship such as one of core component of gear hobbing lathe, its kinematic accuracy, bearing capacity to integrally
The production and processing ability and efficiency of gear hobbing lathe, it is existing to be used to support the drive mechanism of hobboing cutter main shaft mainly to use groups of angle
Contact ball bearing structure, and hobboing cutter main shaft tail end uses tapered configuration, such drive mechanism with travelling gear coupling part
It generally there are following feature：The ball bearing of one angular contact easily causes its abrasion, just with the increase of hobboing cutter main shaft run time
Property be deteriorated, precision reduces, and the abrasion only re-replaces new ball bearing, causes later stage use cost to be irrecoverable
With the increase of repair density；Secondly hobboing cutter spindle taper can not be adjusted well after processing in assembling process, cause
Error be present in both gaps, and when gap is big, rotating accuracy can be reduced, influences transmission accuracy；Thirdly due to hobboing cutter base bearing by
The cutting load of intermittent cycles, radial load is larger, will with the precision and rigidity for bearing load to hobboing cutter main shaft rotation center
Very high, common support drive mechanism is asked to meet existing Gear Processing requirement.
The content of the invention
In view of this, it is an object of the invention to provide a kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism, with
The rigidity and precision of main axle structure are improved, extends its service life.
To reach above-mentioned purpose, the present invention is achieved through the following technical solutions：
A kind of high rigidity provided by the invention, high-precision hobboing cutter main shaft support drive mechanism, including it is big bracket, slide, small
Bracket, main shaft and sleeve, the slide are connected with big bracket, and the small bracket slidably on slide, consolidate by the sleeve
It is scheduled on small bracket, described main shaft one end is connected by axle sleeve with slide, and its other end is connected by driving gearshaft and big bracket
Connect；Hydrostatic bearing structure is formed between the axle sleeve and main shaft；The driving gearshaft is provided with bindiny mechanism, for main shaft with
Travelling gear axis connection simultaneously can make main shaft follow driving gearshaft to turn round in radial directions together and relative to driving gearshaft
Axial direction movement；Also include being provided with and the tapered sleeve phase located at the tapered sleeve between small bracket and sleeve, the small bracket
The taper of matching, hydrostatic bearing structure is formed between the tapered sleeve and sleeve；Along being provided with the radial direction for the tapered sleeve
One straight line groove and several equally distributed straight-line grooves, the spacing of adjacent two straight-line grooves are equal.
Further, the bindiny mechanism includes connecing disk, and the disk that connects is two-flap type combining structure, including two shape sizes
Consistent half-round；Two half-rounds are connected with main shaft by flat key.
Further, the inwall of the tapered sleeve is provided with oil groove, and at least one and oil groove is additionally provided with the tapered sleeve and is connected
The oilhole connect.
Further, the quantity of the oil groove and big I determine according to the size of tapered sleeve and the quantity of straight-line groove.
Further, it is filled with elastomer in the straight-line groove.
Further, the elastomer is polymer rubber alloy elastic body or metal-rubber elastomer.
Further, in addition to adjusting gasket, the adjusting gasket are located at the stub end side of tapered sleeve.
The method have the benefit that：Hobboing cutter main shaft support drive mechanism of the present invention sets axle by main shaft one end
Set, makes to form hydrostatic bearing structure between axle sleeve and main shaft, can adjust its drive gap and arrive very little, improve the precision of transmission；
Bindiny mechanism is set by the main shaft other end, can not only main shaft rotation center is guaranteed, moreover it is possible to when needing to alter knife, can allow
Main shaft is moved axially in disk in connecing for bindiny mechanism, increases the versatility of main axle structure；By designing tapered sleeve so that be fixed on knife
Hydrostatic bearing structure is formed between sleeve and tapered sleeve on bar, using the adjustable hydrostatic bearing supporting construction, relative to it
The degree of wear in use is just reduced for his bearing, can be with even if the tapered sleeve of hydrostatic bearing structure wears
By adjusting the gap between the sleeve of the hydrostatic bearing structure and tapered sleeve so that main axis is always maintained at higher rigidity and essence
Degree, extends its service life.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can by following specification realizing and
Obtain.
Brief description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing excellent
The detailed description of choosing, wherein：
Fig. 1 is the schematic cross-sectional view of hobboing cutter main shaft support drive mechanism of the present invention；
Fig. 2 is Fig. 1 I portions enlarged drawing；
Fig. 3 is bindiny mechanism P in Fig. 1 to schematic diagram；
Fig. 4 is the tapered sleeve stereogram of the present invention；
Fig. 5 is the tapered sleeve top view of the present invention；
Fig. 6 is the tapered sleeve shaft side figure of the present invention；
Reference：1- main shafts；The big brackets of 2-；3- slides；The small brackets of 4-；5- sleeves；6- axle sleeves；7- driving gearshafts；
8- attachment structures, 81- half-rounds, 82- flat keys；9- tapered sleeves, 91- straight line grooves, 92- straight-line grooves, 93- oil grooves, 94- oilholes；
10- adjusting gaskets；11- knife bars；12- hobboing cutters；The outer tapered joint disks of 13-.
Embodiment
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail；It should be appreciated that preferred embodiment
Only for the explanation present invention, the protection domain being not intended to be limiting of the invention.
As shown in figures 1 to 6, a kind of high rigidity provided by the invention, high-precision hobboing cutter main shaft support drive mechanism, including it is big
Bracket 2, slide 3, small bracket 4, main shaft 1 and sleeve 5, the slide 3 are connected with big bracket 2, and the small bracket 4 is slidably set
In on slide 3, the sleeve 5 is fixed on small bracket 4, and described one end of main shaft 1 is connected by axle sleeve 6 with slide 3, its other end
It is connected by driving gearshaft 7 with big bracket 2；Hydrostatic bearing structure is formed between the axle sleeve 6 and main shaft 1；The driving cog
Wheel shaft 7 is provided with bindiny mechanism 8, for main shaft and travelling gear axis connection and main shaft can be made to follow driving gearshaft together with footpath
Moved to direction upper rotary and relative to the axial direction of driving gearshaft.
Specifically, main shaft 1, big bracket 2, slide 3, small bracket 4 have collectively constituted the main shaft knot of hob arbor carriage with sleeve 5
Structure, the one end of hob arbor 11 are connected with main shaft 1, and the other end is connected with sleeve 5, and hobboing cutter 12 is installed on knife bar 11；Wherein main shaft 1 is pacified
On big bracket 2, sleeve 5 be arranged on small bracket 4 on, one end of main shaft 1 is connected on slide 3 by axle sleeve 6, axle sleeve 6 with
The coupling part of main shaft 1 forms static-pressure oil chamber, so as to constitute hydrostatic bearing, so with respect to just being reduced for other bearings
The degree of wear in use, and the gap of main shaft 1 and axle sleeve 6 can adjust very little by way of match grinding, from
And improve the rigidity and transmission accuracy of main axle structure；And the other end of main shaft 1 passes through the tooth on driving gearshaft 7 and big bracket 2
Wheel drive connection, can make main shaft 1 that gyration occur, and is connected main shaft 1 with the driving gearshaft 7 by bindiny mechanism 8, use
Connected in main shaft 1 and driving gearshaft 7 and together with main shaft 1 can be made to follow driving gearshaft 7 in the radial direction of driving gearshaft 7
Upper rotary and moved relative to axial direction of the driving gearshaft 7 in driving gearshaft 7, the bindiny mechanism 8 includes connecing disk, main
Axle 1 is connected with connecing disk by flat key 82, and it is two-flap type combining structure to connect disk, including the half-round 81 that two shape sizes are consistent,
Axiality between main shaft 1 and driving gearshaft 7 can be adjusted by the flat key 82 between two half-rounds 81, ensure its transmission essence
Degree, when driving gearshaft 7 rotates, it can drive and connect disk rotation, and connect disk and main shaft 1 is stuck in centre and follows driving gearshaft 7
Gyration is done together, and gap therein can adjust very little by way of match grinding, and which improves main shaft 1
Transmission accuracy；And when needing to alter knife, by slide 3 main shaft 1 can be driven to be slided in disk is connect.
In the present embodiment, in addition to the tapered sleeve 9 being located between small bracket 4 and sleeve 5, the small bracket 4 is provided with and institute
The taper that tapered sleeve 9 matches is stated, hydrostatic bearing structure is formed between the tapered sleeve 9 and sleeve 5.
Specifically, small bracket 4 is arranged on slide 3, by (unmarked) connection of guide rail, small bracket 4 can be in cunning for they
Slid on seat 3, installation and removal knife bar 11 and hobboing cutter 12 are realized so as to convenient.Tapered sleeve 9 is connected with small bracket 4 by taper,
Static-pressure oil chamber is formed between tapered sleeve 9 and sleeve 5,, can be by tapered sleeve 9 and set by its gap of match grinding so as to constitute hydrostatic bearing
Gap adjustment between cylinder 5 just reduces for other bearings the degree of wear in use to very little
And rigidity, because gap is smaller, also improve transmission accuracy.The span of the taper is 0.5 °~5 °, and preferable taper is
1 °, requirement can be met.
In the present embodiment, a straight line groove 91 and several uniform point are provided with the radial direction along the tapered sleeve 9
The straight-line groove 92 of cloth, the spacing of adjacent two straight-line grooves 92 are equal；The inwall of the tapered sleeve 9 is provided with oil groove 93, institute
State and at least one oilhole 94 being connected with the oil groove 93 is additionally provided with tapered sleeve 9；Between why reducing between hydrostatic bearing
Gap, it is because tapered sleeve 9 is the sleeve-like configuration of a tapered configuration, and the straight line do not opened is evenly equipped with the circumference of its taper
Groove 92, while the also one main line groove 91 opened, so by the compression of outer tapered joint disk 13, can by the endoporus of tapered sleeve 9 compared with
Small diminution, so as to reduce hydrostatic bearing because of abrasion and caused by gap, gap at hydrostatic bearing structure can be kept to locate always
In a less level, the rotation precision of knife bar 11 is improved.
It should be strongly noted that the quantity of the straight-line groove and the big I of slotting come according to the shape size of tapered sleeve it is true
It is fixed, and the quantity of the oil groove and big I determine according to the size of tapered sleeve and the quantity of straight-line groove, the number of the oilhole
Amount can determine according to the size of oil groove；The span of i.e. described straight-line groove quantity can be 4~9, its length etc.
Length of tapered sleeve axial direction where it, 0.3~0.7 times of tapered sleeve radial direction width, width etc. where depth is equal to it
In 0.01~1.5mm；The length of tapered sleeve axial direction where the length of the straight line groove is equal to it, its width are equal to 0.001
~1mm；The oil groove quantity is 1/2 times of straight-line groove quantity, and the span of the oilhole quantity is 1~5, preferably
, the straight-line groove quantity is 6, and 0.6 times of tapered sleeve radial direction width where its depth is equal to it, width is equal to
0.2mm；The width of the straight line groove is equal to 0.02mm；The oil groove quantity is 3, the oilhole being connected with the single oil groove
Quantity is 2, disclosure satisfy that use condition.
In the present embodiment, elastomer (not shown) is filled with the straight-line groove, tapered sleeve 9 can be provided by elastomer
A kind of controllable adaptive elastic deformation, to reduce its contact stress and improve its bearing capacity, so that tapered sleeve 9 has height can
Lean on, the long-life, high pulling torque the advantages that.The elastomer uses metal-rubber elastomer, it is special with extreme environment (high temperature or
High vibration) there is the inherent characteristic of selected metal, have again and be similar to the same elasticity of rubber, do not steamed under space environment
Hair, does not fear high temperature, is not afraid of space radiation and particle and hits, and selects different metals can be with corrosion-resistant environment, and without aging
May, and with characteristics such as damping vibration attenuations.Certainly in various embodiments, the elastomer can also use polymer rubber
Elastomer, it can equally reach above-mentioned purpose.
As the improvement of the present embodiment, in addition to adjusting gasket 10, the adjusting gasket 10 is located at the stub end one of tapered sleeve 9
Side, so can by the stub end one of tapered sleeve 9, laterally the thin lateral movement of head end one (from left to right) makes by the thickness of adjusting gasket 10
Outer tapered joint disk 13 compresses tapered sleeve 9, even if using because of wear reason, the gap at hydrostatic bearing structure becomes big after too long, I
Can also be by reducing the thickness of pad 10 by the tapered side compression to the left of tapered sleeve 9, between reducing at hydrostatic bearing structure
Gap, to ensure the transmission accuracy of knife bar 11.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (6)
1. a kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：Including big bracket, slide, small support
Seat, main shaft and sleeve, the slide are connected with big bracket, and the small bracket slidably on slide, fix by the sleeve
On small bracket, described main shaft one end is connected by axle sleeve with slide, and its other end is connected by driving gearshaft with big bracket；
Hydrostatic bearing structure is formed between the axle sleeve and main shaft；The driving gearshaft is provided with bindiny mechanism, for main shaft with passing
Movable gear shaft connects and main shaft can be made to follow driving gearshaft to turn round in radial directions together and relative to driving gearshaft
Axial direction moves；Also include being provided with and the tapered sleeve phase located at the tapered sleeve between small bracket and sleeve, the small bracket
The taper matched somebody with somebody, hydrostatic bearing structure is formed between the tapered sleeve and sleeve；One is provided with the radial direction along the tapered sleeve
Straight line groove and several equally distributed straight-line grooves, the spacing of adjacent two straight-line grooves is equal, the bindiny mechanism
Including connecing disk, the disk that connects is two-flap type combining structure, including the half-round that two shape sizes are consistent；Two half-rounds
It is connected with main shaft by flat key.
2. high rigidity according to claim 1, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：The cone
The inwall of set is provided with oil groove, and at least one oilhole being connected with the oil groove is additionally provided with the tapered sleeve.
3. high rigidity according to claim 2, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：The oil
The quantity of groove and big I determine according to the size of tapered sleeve and the quantity of straight-line groove.
4. high rigidity according to claim 1, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：It is described straight
Elastomer is filled with line trenches.
5. high rigidity according to claim 4, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：The bullet
Property body is polymer rubber alloy elastic body or metal-rubber elastomer.
6. according to any described high rigidities of claim 1-5, high-precision hobboing cutter main shaft support drive mechanism, it is characterised in that：
Also include adjusting gasket, the adjusting gasket is located at the stub end side of tapered sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028058.6A CN105458307B (en) | 2016-01-15 | 2016-01-15 | A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028058.6A CN105458307B (en) | 2016-01-15 | 2016-01-15 | A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458307A CN105458307A (en) | 2016-04-06 |
| CN105458307B true CN105458307B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610028058.6A Active CN105458307B (en) | 2016-01-15 | 2016-01-15 | A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism |
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| CN (1) | CN105458307B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643065B (en) * | 2020-12-09 | 2022-02-22 | 重庆机床(集团)有限责任公司 | Main shaft structure of numerical control gear hobbing machine |
| CN112975469A (en) * | 2021-04-12 | 2021-06-18 | 重庆大学 | Worm gear female machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059408A (en) * | 2010-12-21 | 2011-05-18 | 齐重数控装备股份有限公司 | Main shaft device for numerical controlled gear hobbing machine |
| CN202151733U (en) * | 2011-04-29 | 2012-02-29 | 齐重数控装备股份有限公司 | A transmission device of a numerical control gear-hobbing machine |
| CN203566003U (en) * | 2013-06-28 | 2014-04-30 | 兴化市隆鑫机械有限公司 | Power lock for positioning of workpiece having inner splined hole |
| CN203918128U (en) * | 2014-06-13 | 2014-11-05 | 重庆机床(集团)有限责任公司 | The little bracket supporting structure of gear-hobbing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219159A (en) * | 1995-02-08 | 1996-08-27 | Nippon Seiko Kk | Static pressure gas bearing |
| CN205324742U (en) * | 2016-01-15 | 2016-06-22 | 重庆机床(集团)有限责任公司 | High rigidity, high accuracy hobbing cutter main shaft support transmission structure |
-
2016
- 2016-01-15 CN CN201610028058.6A patent/CN105458307B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059408A (en) * | 2010-12-21 | 2011-05-18 | 齐重数控装备股份有限公司 | Main shaft device for numerical controlled gear hobbing machine |
| CN202151733U (en) * | 2011-04-29 | 2012-02-29 | 齐重数控装备股份有限公司 | A transmission device of a numerical control gear-hobbing machine |
| CN203566003U (en) * | 2013-06-28 | 2014-04-30 | 兴化市隆鑫机械有限公司 | Power lock for positioning of workpiece having inner splined hole |
| CN203918128U (en) * | 2014-06-13 | 2014-11-05 | 重庆机床(集团)有限责任公司 | The little bracket supporting structure of gear-hobbing machine |
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| Publication number | Publication date |
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| CN105458307A (en) | 2016-04-06 |
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