CN101456136B - Numerical control main axle unit - Google Patents
Numerical control main axle unit Download PDFInfo
- Publication number
- CN101456136B CN101456136B CN2008100718558A CN200810071855A CN101456136B CN 101456136 B CN101456136 B CN 101456136B CN 2008100718558 A CN2008100718558 A CN 2008100718558A CN 200810071855 A CN200810071855 A CN 200810071855A CN 101456136 B CN101456136 B CN 101456136B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- numerical control
- nut
- synchronous pulley
- control main
- 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.)
- Expired - Fee Related
Links
Abstract
The invention relates to the field of a machining main shaft unit, in particular to a numerical control main shaft unit, which comprises a main shaft for bearing a machining tool, a hollow pull rod, a main shaft feed driving device for driving the main shaft to slide axially, a main shaft rotation driving device for driving the main shaft to rotate radially, and a box body. Compared with the prior art, the numerical control main shaft unit is mainly arranged on a machining device to perform machining operations of drilling, reaming, boring, tapping, and the like, the feeding speed of the main shaft is easy to control, the vibration is smaller when the machining is in place, the precision of the axial dimension in the process of machining a workpiece is easy to control, the surface finish quality of a machined workpiece is high, and wearing parts are easy to replace, thus the numerical control main shaft unit sufficiently meets the requirements of the modern machining.
Description
Technical field
The present invention relates to the machining main shaft unit field, be meant a kind of numerical control main axle unit especially.
Background technology
Machinings such as main axle unit mainly is installed on and is used on the machining equipment boring, hinge, boring, tapping, traditional type of drive is air pressure or hydraulic-driven, processing the limit method that puts in place is mechanical position limitation.This type of drive is single, the easy defectives such as gas leakage or leakage of oil that produce, and feed speed is wayward, and processing puts vibrations in place greatly, and the axial dimension precision is wayward during processing work, and the workpiece surface finish of processing is not high, and consumable accessory is difficult for changing.Along with the continuous development of mechanical industry, this traditional main axle unit can not satisfy the demand in market.
Though and numerical control main axle unit of the prior art is greatly improved for the control ability of feed speed, because the influence in gap etc. between its parts, make that still to add the vibrations in man-hour bigger, influenced the precision of processing work.Moreover, during certain damage of components of existing numerical control main axle unit, often need whole device is pulled down and could be changed, very inconvenient.A kind of " numerical control main axle device " disclosed as China Patent No. 200620084194.9, comprise main shaft, motor, shaft coupling and industry control microcomputer, it is characterized in that: motor adopts magnetic resistance switch speed-adjustable motor, magnetic resistance switch speed-adjustable motor links to each other with main shaft by shaft coupling, magnetic resistance switch speed-adjustable motor connects controller, and controller connects the industry control microcomputer.China 200620083765.7 discloses a kind of " numerical control groover mainshaft mechanism " for another example, this numerical control groover mainshaft mechanism, comprise: main spindle box, the design of main spindle box lower end has spindle through-hole, in the spindle through-hole of main spindle box lower end bearing is housed, main shaft is housed in the bearing, the left-hand end of the spindle through-hole bearing gland that has been threaded, the bearing gland center has the gland through hole, and main shaft passes the gland through hole; The two ends, the left and right sides of main shaft lay respectively at the outside of main spindle box, and the right-hand member of the main shaft union (screwed)bonnet (UB that has been threaded is equipped with cutter holder on the main shaft on the right side of union (screwed)bonnet (UB.These two patents all have above-mentioned described shortcoming.
Summary of the invention
Main purpose of the present invention is to overcome wayward, the not easily detachable shortcoming of main shaft of main shaft machining accuracy in the prior art machining, and a kind of numerical control main axle unit is provided.
The present invention adopts following technical scheme: a kind of numerical control main axle unit comprises:
One is used to carry the main shaft of machine tools, and this main shaft has the inner chamber at its both ends of perforation;
One hollow draw-bar is installed in the inner chamber of main shaft, and its leading section is fixed with described machine tools;
One is used for drive shaft axis feeding drive unit in axial sliding, comprise nut apparatus that first servomotor that is connected to the machining equipment numer centre, first synchronous belt device by this first driven by servomotor, one drive by this first synchronous belt device, one with this nut apparatus also fixedly sleeved screw mandrel on main shaft that cooperatively interacts, main shaft endwisely slips with this screw mandrel;
One is used for the main axis rotation drive unit that drive shaft is radially rotated, comprise that one is connected to second servomotor, second synchronous belt device by this second driven by servomotor of machining equipment numer centre, this second synchronous belt device drives main shaft diameter to rotation;
One casing, above-mentioned each assembly all is installed in this casing.
Further, a kind of numerical control main axle unit of the present invention comprises that also one is used to make axis feeding drive unit and the synchronous operated link gear of main axis rotation drive unit, comprise the 5th synchronous pulley of being located on first synchronous belt device or second synchronous belt device, the 5th synchronous pulley is provided with an encoder, and this encoder is connected to the machining equipment numer centre.
Further, a kind of numerical control main axle unit of the present invention, the rearward end of described main shaft against once the position device, the rearward end of described hollow draw-bar is against a limited block is arranged.
Further, described returning device is a return spring.
Further, a kind of numerical control main axle unit of the present invention, the leading section of described hollow draw-bar is connected with a pulling claw, and this pulling claw removably is connected with a stretching screw, and this stretching screw removably connects described machine tools.
Described first synchronous belt device comprises first synchronous pulley of being located on first servomotor, and this first synchronous pulley is by a band connection synchronously one second synchronous pulley; Described nut apparatus comprises a left nut and a right nut; This second synchronous pulley is connected in this left side nut and right nut.
Further, a kind of numerical control main axle unit of the present invention, described left nut is provided with a fastening screw nut, and described right nut is provided with a Limit Bearing.
Described second synchronous belt device comprises the 3rd synchronous pulley of being located on second servomotor, and the 3rd synchronous pulley is by a band drive synchronously one the 4th synchronous pulley, and the 4th synchronous pulley is provided with a bearing, and this bearing fixing is on a supporting seat.
Further, a kind of numerical control main axle unit of the present invention, described screw mandrel are ball screw.
By the above-mentioned description of this invention as can be known, compare with prior art, a kind of numerical control main axle unit of the present invention is realized the off-load of main shaft by the mating reaction of supporting seat, bearing, the 4th synchronous pulley, make main shaft only bear operation torque, and do not bear radially moment of torsion, not only promote the accuracy of main shaft axial action, also made the life-span of main shaft prolong; Secondly, the present invention makes the gap of left nut, right nut and screw mandrel eliminate by the mating reaction of fastening screw nut, left nut, right nut, screw mandrel, form the transmission of no gap, make that vibrations were less when main shaft was worked, not only improve the accuracy of processing, also make the life-span of main shaft prolong; In addition, the present invention realizes that by the encoder that is provided with main shaft axially and the interlock of radial action, makes that the machining accuracy of processing work is more easy to control on axis feeding drive unit or main axis rotation drive unit; At last, the present invention changes simple and easy by the automatic loading and unloading of the mating reaction realization machine tools of hollow draw-bar, stretching screw, pulling claw, machine tools, returning device, limited block and axis feeding drive unit.In a word, a kind of numerical control main axle unit of the present invention mainly is installed on machinings such as being used for brill, hinge, boring, tapping on the machining equipment, the feed speed of main shaft is easy to control, vibrations when processing puts in place are less, the precision of axial dimension is controlled easily during processing work, the workpiece surface finish height of processing, consumable accessory is easily changed, and fully satisfies the demand of modern mechanical processing.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of a kind of numerical control main axle unit of the present invention.
The specific embodiment
With reference to Fig. 1, a kind of numerical control main axle unit of the present invention comprises:
One is used to carry the main shaft 1 of machine tools, and this main shaft 1 has the inner chamber at its both ends of perforation;
One hollow draw-bar 15, be installed in the inner chamber of main shaft 1, its leading section is connected with a pulling claw 1-2, this pulling claw 1-2 removably is connected with a stretching screw 1-1, this stretching screw 1-1 removably connects a machine tools 1-3, this machine tools 1-3 can be finish cut, the instrument of function such as brill, boring, hinge, tapping; Connected mode between pulling claw 1-2 and the stretching screw 1-1 is clamping, and the connected mode between stretching screw 1-1 and the machine tools 1-3 is for being threaded;
One is used for drive shaft 1 axis feeding drive unit in axial sliding, comprise nut apparatus that first synchronous belt device that first servomotor 11 that is connected to the machining equipment numer centre, drives by this first servomotor 11, drives by this first synchronous belt device, one with this nut apparatus also fixedly sleeved ball screw 2 on main shaft 1 that cooperatively interacts, main shaft 1 endwisely slips with this ball screw 2; This first synchronous belt device comprises first synchronous pulley of being located on first servomotor 11 10, and this first synchronous pulley 10 is with 10-1 to connect one second synchronous pulley 2-1 by one synchronously; This nut apparatus comprises a left nut 13 and a right nut 12; This second synchronous pulley 2-1 is connected in this left side nut 13 and right nut 12;
One is used for the main axis rotation drive unit that drive shaft 1 is radially rotated, comprise that one is connected to second servomotor 3, second synchronous belt device by these second servomotor, 3 drivings of machining equipment numer centre, this second synchronous belt device drives main shaft 1 and radially rotates; This second synchronous belt device comprises the 3rd synchronous pulley of being located on second servomotor 34, the 3rd synchronous pulley 4 is with 4-1 to drive one the 4th synchronous pulley 8 by one synchronously, the 4th synchronous pulley 8 is provided with a bearing 9-1, and this bearing 9-1 is fixed on the supporting seat 9;
One is used to make axis feeding drive unit and the synchronous operated link gear of main axis rotation drive unit, comprise the 5th synchronous pulley of being located on second synchronous belt device 6, the 5th synchronous pulley 6 is provided with an encoder 5, and this encoder 5 is connected to the machining equipment numer centre;
One casing 16, above-mentioned each assembly all is installed in this casing 16.
In addition, a kind of numerical control main axle unit of the present invention, the rearward end of main shaft 1 against once the position spring 7, the rearward end of hollow draw-bar 15 is against a limited block 17 is arranged; Left side nut 13 is provided with a fastening screw nut 14, and right nut 12 is provided with a Limit Bearing 2-2.
A kind of numerical control main axle unit of the present invention, when assembling, regulate fastening screw nut 14, left side nut 13 is moved to the left, driving screw mandrel 2 is moved to the left, screw mandrel 2 drives right nut 12 and is moved to the left, because limited bearing 2-2 is spacing when being moved to the left can not be moved to the left for right nut 12, the screw thread right flank of so right nut 12 just is close to the screw thread left side of screw mandrel 2, simultaneously, the screw thread left surface of left side nut 13 is close to the right flank of screw mandrel 2, so just left nut 13, right nut 12 is eliminated with the gap of screw mandrel 2, forms the transmission of no gap.
A kind of numerical control main axle unit of the present invention, when work, second servomotor 3 is by the 3rd synchronous pulley 4, be with 4-1, the 4th synchronous pulley 8 to drive main shafts 1 rotation synchronously, because the 4th synchronous pulley 8 is provided with bearing 9-1, this bearing 9-1 is fixed on the supporting seat 9, such the 4th synchronous pulley 8 just can bear radially moment of torsion by supporting seat 9 by this bearing 9-1, and 1 on main shaft bears operation torque, plays the off-load effect.
A kind of numerical control main axle unit of the present invention, in main shaft 1 rotation, first servomotor 11 is by first synchronous pulley 10, be with 10-1 synchronously, the second synchronous pulley 2-1 drives left nut 13, right nut 12 rotations, thereby driving screw mandrel 2 slides vertically, main shaft 1 feeding vertically, and this moment, the encoder of being located on the 5th synchronous pulley 65 feeds back to the machining equipment numer centre with the data that collect, and control the action of first servomotor 11 and second servomotor 3 by the machining equipment numer centre, thereby make main shaft 1 realize radially rotating when sliding vertically, reach the interlock effect.
A kind of numerical control main axle unit of the present invention, when changing machine tools 1-3, under the effect of axis feeding drive unit, main shaft 1 moves after axially, after hollow draw-bar 15 is run into limited block 17, after stopping, moving hollow draw-bar 15, and main shaft 1 moves after continuing, return spring 7 is compressed, pulling claw 1-2 unclamps, and stretching screw 1-1 and machine tools 1-3 unclamp from pulling claw 1-2 and lay down, meanwhile, can be under the effect of magnetic valve, Air blowing valve is opened, and blows by the taper hole of 15 pairs of main shaft 1 leading sections of hollow draw-bar, and the foreign material such as iron filings in the taper hole are blown off, after machine tools 1-3 finished changing, with stretching screw 1-1 and the machine tools 1-3 pulling claw 1-2 that packs into, under the effect of axis feeding drive unit, main shaft 1 axial advancement, pulling claw 1-2 strains stretching screw 1-1 under return spring 7 effects, thereby finishes the clamping of machine tools 1-3.
Above-mentioned only is a specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (9)
1. numerical control main axle unit is characterized in that: comprising:
One is used to carry the main shaft of machine tools, and this main shaft has the inner chamber at its both ends of perforation;
One hollow draw-bar is installed in the inner chamber of main shaft, and its leading section is fixed with described machine tools;
One is used for drive shaft axis feeding drive unit in axial sliding, comprise nut apparatus that first servomotor that is connected to the machining equipment numer centre, first synchronous belt device by this first driven by servomotor, one drive by this first synchronous belt device, one with this nut apparatus also fixedly sleeved screw mandrel on main shaft that cooperatively interacts, main shaft endwisely slips with this screw mandrel;
One is used for the main axis rotation drive unit that drive shaft is radially rotated, comprise that one is connected to second servomotor, second synchronous belt device by this second driven by servomotor of machining equipment numer centre, this second synchronous belt device drives main shaft diameter to rotation;
One casing, above-mentioned each assembly all is installed in this casing.
2. a kind of numerical control main axle unit as claimed in claim 1, it is characterized in that: comprise that also one is used to make axis feeding drive unit and the synchronous operated link gear of main axis rotation drive unit, comprise the 5th synchronous pulley of being located on first synchronous belt device or second synchronous belt device, the 5th synchronous pulley is provided with an encoder, and this encoder is connected to the machining equipment numer centre.
3. a kind of numerical control main axle unit as claimed in claim 1 or 2 is characterized in that: the rearward end of described main shaft against once the position device, the rearward end of described hollow draw-bar is against a limited block is arranged.
4. a kind of numerical control main axle unit as claimed in claim 3 is characterized in that: described returning device is a return spring.
5. a kind of numerical control main axle unit as claimed in claim 1 or 2 is characterized in that: the leading section of described hollow draw-bar is connected with a pulling claw, and this pulling claw removably is connected with a stretching screw, and this stretching screw removably connects described machine tools.
6. a kind of numerical control main axle unit as claimed in claim 1 or 2 is characterized in that: described first synchronous belt device comprises first synchronous pulley of being located on first servomotor, and this first synchronous pulley is by a band connection synchronously one second synchronous pulley; Described nut apparatus comprises a left nut and a right nut; This second synchronous pulley is connected in this left side nut and right nut.
7. a kind of numerical control main axle unit as claimed in claim 6 is characterized in that: described left nut is provided with a fastening screw nut, and described right nut is provided with a Limit Bearing.
8. a kind of numerical control main axle unit as claimed in claim 1 or 2, it is characterized in that: described second synchronous belt device comprises the 3rd synchronous pulley of being located on second servomotor, the 3rd synchronous pulley is by a band drive synchronously one the 4th synchronous pulley, the 4th synchronous pulley is provided with a bearing, and this bearing fixing is on a supporting seat.
9. as claim 1 or 2 or 4 or 7 described a kind of numerical control main axle units, it is characterized in that: described screw mandrel is a ball screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100718558A CN101456136B (en) | 2008-09-23 | 2008-09-23 | Numerical control main axle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100718558A CN101456136B (en) | 2008-09-23 | 2008-09-23 | Numerical control main axle unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101456136A CN101456136A (en) | 2009-06-17 |
| CN101456136B true CN101456136B (en) | 2011-02-09 |
Family
ID=40767411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100718558A Expired - Fee Related CN101456136B (en) | 2008-09-23 | 2008-09-23 | Numerical control main axle unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101456136B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398089A (en) * | 2010-09-07 | 2012-04-04 | 安特(苏州)精密机械有限公司 | Semi-automatic tapping machine |
| CN102909395A (en) * | 2012-09-29 | 2013-02-06 | 山东鲁南机床有限公司 | Vertical machining center main shaft box structure |
| CN103692263B (en) * | 2013-12-05 | 2016-05-25 | 成都斯锐特钨钢刀具有限公司 | One mechanical grip mechanism |
| CN104607947A (en) * | 2015-02-03 | 2015-05-13 | 杭州西湖台钻有限公司 | Numerical control drilling and tapping dual-purpose machine |
| CN106984835B (en) * | 2017-05-03 | 2019-07-05 | 繁昌县速诚智能设备科技有限公司 | A kind of power unit of machine tool device |
| CN107282946B (en) * | 2017-06-27 | 2019-07-02 | 无锡贺邦金属制品有限公司 | A kind of device for the processing of automotive casting part |
| CN110788660A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨理工大学 | Automatic spindle feeding actuating mechanism |
-
2008
- 2008-09-23 CN CN2008100718558A patent/CN101456136B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101456136A (en) | 2009-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101456136B (en) | Numerical control main axle unit | |
| CN201271808Y (en) | Numerical control main spindle unit | |
| CN101537584B (en) | Drum type multi-station composite numerical control machine tool | |
| DE112010004197T5 (en) | Stand turning and milling machine | |
| CN109605063B (en) | Small five-axis engraving and milling machine tool | |
| CN201086148Y (en) | Portable boring machine | |
| CN207606283U (en) | A kind of axial workpiece Cutting lathe | |
| CN110732705B (en) | A high-efficient type drilling equipment for workshop | |
| CN109623381B (en) | Multi-station automatic processing equipment | |
| CN101524816B (en) | Workpiece support device and rotary indexer | |
| CN202763444U (en) | Tools of inner and outer double-conical-degree large size solid of revolution type workpieces | |
| CN111730334B (en) | End face milling and center hole drilling machine tool | |
| CN110095276B (en) | Portable power knife rest all-condition loading test device | |
| CN202591703U (en) | Multi-functional lathe milling device | |
| CN105328242A (en) | Spindle feeding mechanism of digital display type radial drilling machine | |
| CN114619280A (en) | Improved work head and machine tool comprising said work head | |
| RU54322U1 (en) | SPECIAL LATHE MACHINE WITH DRO | |
| CN210549962U (en) | Efficient numerical control composite cylindrical grinding machine | |
| CN202804772U (en) | Planer type milling machine and milling transmission device thereof | |
| CN201350510Y (en) | Drum-type multi-station numerical control composite machine tool | |
| CN201807754U (en) | Processing tool for boring high-precision multi-gear shaft holes | |
| CN205147397U (en) | Digital display type radial drill's main shaft feed mechanism | |
| CN218903633U (en) | Lifting structure of numerical control lathe | |
| KR101595716B1 (en) | Turret assembly of shaft multiprocessing machine | |
| CN216882996U (en) | Multi-axis linkage processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |