CN103706812B - Full connected integral type boring spindle - Google Patents
Full connected integral type boring spindle Download PDFInfo
- Publication number
- CN103706812B CN103706812B CN201210374328.0A CN201210374328A CN103706812B CN 103706812 B CN103706812 B CN 103706812B CN 201210374328 A CN201210374328 A CN 201210374328A CN 103706812 B CN103706812 B CN 103706812B
- Authority
- CN
- China
- Prior art keywords
- bushing
- boring
- boring axle
- axle
- static pressure
- 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Drilling Tools (AREA)
Abstract
The present invention relates to a kind of machine tool chief axis, especially a kind of Full connected integral type boring spindle.This main shaft is made up of bushing and boring axle, wherein, described bushing and boring axle are made up of same material, contact along the entire axial length of boring axle between the outer surface of boring axle and the inner surface of bushing, bushing endoporus and boring be coupling tactile surface be provided with at least together with spiral static pressure groove, simultaneously bushing is provided with oil filler point, and oil filler point is communicated with spiral static pressure groove, spiral static pressure groove is built with extreme pressure lubricant, and extreme pressure lubricant forms high-pressure static pressure oil film between bushing and boring axle.Which increase the contact area between boring axle and bushing, substantially increase the rigidity of boring axle, reduce the frictional force between boring axle and bushing simultaneously, avoid occurring the problem such as axis and precise decreasing.
Description
Technical field
The present invention relates to a kind of machine tool chief axis, especially a kind of Full connected integral type boring spindle.
Background technology
The main shaft of existing boring and milling machine is by the boring axle and the bushing that are positioned at mid portion, and be positioned at wear-resisting support set and the slide key four part composition at bushing two ends, wherein, interference fit is adopted between bushing and wear-resisting support set, boring axle is arranged in bushing, be slidably matched with wear-resisting support set, boring axle is supported by the wear-resistant sleeve being arranged on its two ends, the defect that this structure exists is: first, can only be contacted by the wear-resisting support set at two ends between bushing with boring axle, mid portion is discontiguous, this structure makes the mid portion of boring axle unsettled, the rigidity of boring axle and main shaft precision is caused significantly heavily to reduce, cutting ability and whole the machine tool accuracy of boring machine will be had a greatly reduced quality, second, in existing main axle structure, bushing, boring axle and wear-resisting support set are formed by different materials processing respectively, its thermal expansion coefficient difference is very large, can affect the gap between its boring axle and wear-resisting support set, thus affect main shaft precision when variations in temperature, particularly when main shaft stretches frequent operation, temperature can violently heat up, thus can cause main shaft stuck phenomenon, causes main shaft to damage.
Summary of the invention
The object of the invention is to propose a kind of Full connected integral type boring spindle, add the contact area between boring axle and bushing, substantially increase the rigidity of boring axle, reduce the frictional force between boring axle and bushing simultaneously, avoid occurring the problem such as axis and precise decreasing.
The present invention adopts following technical scheme to realize: a kind of Full connected integral type boring spindle, main shaft is made up of bushing and boring axle, wherein, described bushing and boring axle are made up of same material, contact along the entire axial length of boring axle between the outer surface of boring axle and the inner surface of bushing, bushing endoporus and boring be coupling tactile surface be provided with at least together with spiral static pressure groove, bushing is provided with oil filler point simultaneously, oil filler point is communicated with spiral static pressure groove, spiral static pressure groove is built with extreme pressure lubricant, and extreme pressure lubricant forms high-pressure static pressure oil film between bushing and boring axle.
In the present invention, described spiral static pressure groove can be continuous print groove, also can be discontinuous groove.
The invention has the beneficial effects as follows: first, present invention eliminates wear-resisting support set, and eliminate the gap between boring axle and bushing, make total length contact between bushing and boring axle, add the contact area between boring axle and bushing, thus substantially increase the rigidity of boring axle; Second, in order to avoid the frictional force increase because the contact area between boring axle and bushing increases between the boring axle that produces and bushing, the contact surface of bushing endoporus and boring axle adopts spiral groove type hydrostatic lubrication structure, greatly reduces the frictional force between boring axle and bushing; 3rd, boring axle and bushing adopt unified material, effectively prevent because material is different and make bushing different with the thermal expansion of boring axle, thus avoid and occur the problem such as axis and precise decreasing.
Accompanying drawing explanation
Fig. 1 is the sectional view of existing boring and milling machine main shaft;
Fig. 2 is the sectional view of boring and milling machine main shaft in the present invention;
Fig. 3 is A place enlarged drawing in Fig. 2.
In figure: 1 bushing; 2 boring axles; 3 spiral static pressure grooves; 4 oil filler points.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 2 and Fig. 3 is Full connected integral type boring spindle of the present invention.This main shaft is made up of bushing 1 and boring axle 2, and bushing 1 and boring axle 2 are made up of same material, effectively prevent because material is different and makes bushing different with the thermal expansion of boring axle, thus avoids and occur the problem such as axis and precise decreasing.Entire axial length along boring axle 2 between the outer surface of boring axle 2 and the inner surface of bushing 1 contacts, and adds the contact area between boring bar and bushing, thus substantially increases the rigidity of boring axle.The surface that bushing 1 bore area and bushing 1 contact with boring axle 2 is provided with spiral static pressure groove 3 together, and bushing 1 is provided with oil filler point 4 simultaneously, and oil filler point 4 is communicated with spiral static pressure groove 3.In helicla flute 3, inject extreme pressure lubricant by oilhole, make it between boring axle 2 and bushing 1, form one deck high-pressure static pressure oil film, for the lubrication between boring axle and bushing, avoid the problem that resistance that is that cause is excessive because contact surface between boring axle and bushing is excessive.
In the present invention, the bore area of bushing 1 can be provided with many spiral static pressure grooves 3, adds the lubricant effect between bushing 1 and boring axle 2 when arranging many spiral static pressure grooves 3.Spiral static pressure groove 3 can be continuous print groove, also can be discontinuous groove.
Claims (1)
1. a Full connected integral type boring spindle, main shaft is made up of bushing (1) and boring axle (2), it is characterized in that: described bushing (1) and boring axle (2) are made up of same material, contact along the entire axial length of boring axle (2) between the outer surface of boring axle (2) and the inner surface of bushing (1), bushing (1) endoporus and boring be coupling tactile surface be provided with at least together with spiral static pressure groove (3), bushing (1) is provided with oil filler point (4) simultaneously, oil filler point (4) is communicated with spiral static pressure groove (3), spiral static pressure groove (3) is built with extreme pressure lubricant, extreme pressure lubricant forms high-pressure static pressure oil film between bushing (1) and boring axle (2),
Spiral static pressure groove is discontinuous groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374328.0A CN103706812B (en) | 2012-09-29 | 2012-09-29 | Full connected integral type boring spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374328.0A CN103706812B (en) | 2012-09-29 | 2012-09-29 | Full connected integral type boring spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103706812A CN103706812A (en) | 2014-04-09 |
| CN103706812B true CN103706812B (en) | 2016-01-06 |
Family
ID=50400361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210374328.0A Expired - Fee Related CN103706812B (en) | 2012-09-29 | 2012-09-29 | Full connected integral type boring spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103706812B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1048234A1 (en) * | 1982-03-16 | 1983-10-15 | Ленинградское Производственное Станкостроительное Объединение Им.Я.М.Свердлова | Device for lubricating withdrawable spindle of horizontal boring machine |
| CN201598415U (en) * | 2009-12-30 | 2010-10-06 | 浙江新飞跃股份有限公司 | Main shaft sleeve of flat seaming machine |
| JP2011083880A (en) * | 2009-10-19 | 2011-04-28 | Jtekt Corp | Main spindle device |
| CN102596493A (en) * | 2010-01-29 | 2012-07-18 | 三菱重工业株式会社 | Main shaft device for boring machine |
| CN102649165A (en) * | 2011-02-25 | 2012-08-29 | 大隈株式会社 | Spindle device |
| CN202910303U (en) * | 2012-09-29 | 2013-05-01 | 泰达重工机械（青岛）有限公司 | Fully contact integrated boring mill main shaft |
-
2012
- 2012-09-29 CN CN201210374328.0A patent/CN103706812B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1048234A1 (en) * | 1982-03-16 | 1983-10-15 | Ленинградское Производственное Станкостроительное Объединение Им.Я.М.Свердлова | Device for lubricating withdrawable spindle of horizontal boring machine |
| JP2011083880A (en) * | 2009-10-19 | 2011-04-28 | Jtekt Corp | Main spindle device |
| CN201598415U (en) * | 2009-12-30 | 2010-10-06 | 浙江新飞跃股份有限公司 | Main shaft sleeve of flat seaming machine |
| CN102596493A (en) * | 2010-01-29 | 2012-07-18 | 三菱重工业株式会社 | Main shaft device for boring machine |
| CN102649165A (en) * | 2011-02-25 | 2012-08-29 | 大隈株式会社 | Spindle device |
| CN202910303U (en) * | 2012-09-29 | 2013-05-01 | 泰达重工机械（青岛）有限公司 | Fully contact integrated boring mill main shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103706812A (en) | 2014-04-09 |
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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: 20160106 Termination date: 20210929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |