CN102896330A - Auxiliary slide rail support device for main shaft of boring-milling machine - Google Patents
Auxiliary slide rail support device for main shaft of boring-milling machine Download PDFInfo
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- CN102896330A CN102896330A CN2011102104815A CN201110210481A CN102896330A CN 102896330 A CN102896330 A CN 102896330A CN 2011102104815 A CN2011102104815 A CN 2011102104815A CN 201110210481 A CN201110210481 A CN 201110210481A CN 102896330 A CN102896330 A CN 102896330A
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- hydrostatic pressure
- main shaft
- slide rail
- boring
- milling machine
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Abstract
The invention provides an auxiliary slide rail support device for a main shaft of a boring-milling machine, wherein a ram is erected on a main shaft box, the ram is internally provided with a main shaft, the back end of the main shaft is correspondingly provided with a hydrostatic pressure bearing pedestal, a hydrostatic pressure slide rail is arranged between each of two corresponding side edges of the hydrostatic pressure bearing pedestal and the ram, the end face of the hydrostatic pressure bearing pedestal is provided with an oil cavity which corresponds to the hydrostatic pressure slide rails, and the hydraulic oil liquid is guided to enter into the oil cavity through an oil inlet hole when the main shaft and the hydrostatic pressure bearing pedestal are calibrated at the same centre line during assembly, so that the main shaft and the hydrostatic pressure bearing pedestal can be kept at a center position under the support of the hydrostatic pressure slide rails when the main shaft of the boring-milling machine stretches out and returns back.
Description
Technical field
The present invention relates to a kind of boring and milling machine main shaft supplemental support railroad, espespecially a kind of such boring and milling machine main shaft supplemental support railroad, this device with the support of hydrostatic pressure slide rail, guarantees that the boring and milling machine main shaft can remain on alignment of shafts position during the elastic processing of main shaft; And the configuration of hydrostatic pressure bearing, the symmetry idea that is difficult for affect displacement with thermal source designs, and allows the center of boring and milling machine main shaft, can not be subject to the impact of hot temperature rise, to reach the boring and milling machine main shaft during processing, can remain on the purpose of center.
Background technology
One boring and milling machine main shaft as shown in Figure 1, when boring and milling machine adds man-hour, this main shaft 1 must elastic displacement, so, need to organize in the rear end of main shaft 1 and to establish a bearing block 10, be equiped with bearing 11 in bearing block 10 inside, main shaft 1 rear end then is installed in bearing inner ring; When main shaft 1 running, bearing block 10 can be by bearing 11 supports main shaft, and bearing block 10 places also are provided with a nut seat hole 12, in order to a ball screw 13 (that is ball-screw) to be installed, so boring and milling machine main shaft 1 is during processing, come impeller-hub bearing 10 by ball screw 13, main shaft 1 just can elastic displacement; In addition, two line slide rails 14 are then installed in the bottom of bearing block 10, prevent that by line slide rail 14 bearing block 10 from rotating, and also come supporting bearing base 10 and main shaft 1 with this, and therefore, when main shaft 1 during in elastic displacement, main shaft 1 can remain on same center.Because the installation site of line slide rail is in main spindle box 15 inside, and need are parallel with main shaft 1 center line, its installation site during such as variations in temperature, then occurs the shortcoming that main shaft 1 is difficult to maintain accurately same center mostly in the same side.
Please consult again shown in Figure 2, boring and milling machine main shaft for the ram type, main shaft 2 interior plant rams 21 inside, ram 21 is connected with a joint seat 22, joint seat 22 inside can arrange a gear 23, and gear 23 is via 2 runnings of a Spindle Motor 24 drive shaft, this joint seat 22 is provided with a nut seat hole 25 simultaneously, come correspondingly to establish with 26 groups of ball screws, and boring and milling machine ram 21 adds man-hour when need carry out feeding, drive ball screw 26 via external impetus servo motor 20, and allow ball screw 26 promote joint seat 22, allow joint seat 22 use the line slide rail 27 that install the bottom, and mobile at line slide rail 27, the feed motion that makes main shaft 2 and ram 21 can carry out elastic displacement.
In addition, as shown in Figure 3, it equally also is the boring and milling machine main shaft of ram type, it mainly links 2 runnings of a Spindle Motor 24 drive shaft in joint seat 22 rear ends, and joint seat 22 is provided with a nut seat hole 25, in order to a ball screw 26 to be installed, and boring and milling machine ram 21 adds man-hour when need carry out feeding, drive ball screw 26 via external impetus servo motor 20, and allow ball screw 26 promote joint seat 22, make main shaft 2 and the ram 21 just can elastic displacement, two line slide rails 27 are then installed in the bottom of joint seat 22, prevent that by line slide rail 27 joint seat 22 from rotating, and supporting jointing seat 22 and ram 21, when ram 21 displacement, can hold it in same center.
Or as shown in Figure 4, it is a console mode boring and milling machine, its main shaft 3 comes drive shaft 3 runnings by power transmission shaft 31 from outside Spindle Motor 32, need to there be a bearing block 33 main shaft 3 rear ends, bearing block 33 inside are equiped with bearing, and main shaft 3 rear ends then are installed in bearing inner ring, so, when main shaft 3 running, bearing block 33 can be by the bearings main shaft; In addition, line slide rail 34 is also installed in the bottom of bearing block 33, prevents that by line slide rail 34 bearing block 33 from rotating, and supporting bearing base 33 and main shaft 3, and main shaft 3 can hold it in same center when displacement.
But above-mentioned one, the boring and milling machine structure of ram type or console mode has shortcoming, shortcoming is as follows: because the installation site of line slide rail mostly in the same side, during such as variations in temperature, has the problem of heat expansion distortion, so main shaft is difficult to maintain accurately same center.
In view of this, the inventor adheres to for many years the abundant of these relevant industries and designs and develops and the actual fabrication experience, and a kind of boring and milling machine main shaft supplemental support railroad is provided especially, improves the disappearance of prior art, in the hope of having the purpose of better practical value.
Summary of the invention
Purpose of the present invention namely is for a kind of boring and milling machine main shaft supplemental support railroad is provided, and espespecially a kind of main shaft that allows is not vulnerable to influence of thermal deformation and remains on the boring and milling machine main shaft supplemental support railroad of same center when elastic displacement.
For this reason, the present invention proposes a kind of boring and milling machine main shaft supplemental support railroad:
It is provided with a main shaft in the inner group of ram, and the corresponding group in rear-end of spindle place is provided with the hydrostatic pressure bearing block mainly in the added ram that is provided with of main spindle box, wherein:
Extending in hydrostatic pressure bearing block two respective side has the guide bracket body, the external side of this guide bracket coats a hydrostatic pressure slide rail, hydrostatic pressure slide rail then corresponding the combination with ram is fixed, continue in two corresponding end faces of the corresponding hydrostatic pressure slide rail of guide bracket body and be provided with oil pocket, and oil pocket forms guiding face with corresponding hydrostatic pressure slide rail, is provided with into the corresponding conducting oil pocket of oilhole by the guide bracket body again.
By the above, the present invention and prior art are compared down, have plurality of advantages, are described below:
1, the oil pocket of the hydrostatic pressure bearing block minim gap identical with corresponding hydrostatic pressure slide rail guiding face palpus maintenance, so during the start of hydrostatic pressure system, the hydrostatic pressure slide rail is able to this minim gap, by the pressure of oil pocket hydraulic oil the hydrostatic pressure bearing block is maintained the center.
2, the oil pocket of hydrostatic pressure bearing block is left-right symmetry, so although the variations in temperature during the processing also can not affect the center of main shaft.
3, during the start of hydrostatic pressure system, all maintain a gap between hydrostatic pressure bearing and hydrostatic pressure slide rail, do not produce so do not have abrasion.
Description of drawings
Fig. 1: prior art schematic diagram ();
Fig. 2: prior art schematic diagram (two);
Fig. 3: prior art schematic diagram (three);
Fig. 4: prior art schematic diagram (four);
Fig. 5: overall appearance schematic diagram of the present invention;
Fig. 6: cross-sectional schematic of the present invention;
Fig. 7: the local enlarged diagram of the present invention.
The main element label declaration:
The specific embodiment
Have more complete and clearly exposure for making technological means of the present invention, goal of the invention and reaching effect, hereby in lower detailed description, and see also accompanying drawing and element numbers.
At first, see also Fig. 5～shown in Figure 7, overall architecture schematic diagram for a kind of boring and milling machine main shaft of the present invention supplemental support railroad, it is mainly in the main spindle box 5 added rams 51 that are provided with, in ram 51 inside structures one main shaft 52, a hydrostatic pressure bearing block 53, two groups of oil pocket 532 and two groups of hydrostatic pressure slide rails 54 that are located in hydrostatic pressure bearing block 53 are arranged, wherein:
Be provided with a main shaft 52 in ram 51 inner groups, and the corresponding group of main shaft 52 rear end is provided with hydrostatic pressure bearing block 53, extend in 53 liang of respective side of hydrostatic pressure bearing block again guide bracket body 531 is arranged, these guide bracket body 531 outsides are coated with hydrostatic pressure slide rail 54, hydrostatic pressure slide rail 54 then correspondence and ram 51 in conjunction with fixing, continue in two corresponding end faces of guide bracket body 531 corresponding hydrostatic pressure slide rails 54 and be provided with oil pocket 532, and oil pocket 532 forms guiding face A with corresponding hydrostatic pressure slide rail 54, is provided with into oilhole 533 corresponding conducting oil pockets 532 by guide bracket body 531 again.
In addition, this hydrostatic pressure slide rail 54 further locks with fixture 55 in conjunction with fixing with ram 51, and hydrostatic pressure slide rail 54 is positioned on the ram 51.
See also Fig. 5～shown in Figure 7, boring and milling machine main shaft supplemental support slide rail of the present invention wherein comprises a main shaft 52, a hydrostatic pressure bearing block 53, two groups of oil pocket 532, two groups of hydrostatic pressure slide rails 54 that are located in hydrostatic pressure bearing blocks 53; When assembling, its hydrostatic pressure bearing block 53 is assembled in main shaft 52 rear end, and cover is organized this two groups of hydrostatic pressure slide rails 54 on the guide bracket body 531 of 53 liang of corresponding sides of hydrostatic pressure bearing block, and two groups of hydrostatic pressure slide rails 54 utilize respectively fixture 55 to pass ram 51, and hydrostatic pressure slide rail 54 is locked in ram 51, allow two groups of hydrostatic pressure slide rails 54 be installed between hydrostatic pressure bearing block 53 and the ram 51; And this guide bracket body 531 further can form V-type pedestal or square pedestal or any pedestal shape that can corresponding slide guide, in this diagram only with the V-type pedestal as representative, do not represent only to be limited to the V-type pedestal, its state that can form corresponding slide guide is the enforceable state of the present invention.
Continue, after the main shaft 52 after the assembling is installed on two groups of hydrostatic pressure slide rail 54 centres with hydrostatic pressure bearing block 53, after allowing hydraulic oil liquid via the flow controller throttling, inject and enter oil pocket 532 by the oilhole 533 of entering on the guide bracket body 531 of hydrostatic pressure bearing block 53, pressure by oil pocket 532 interior hydraulic oil liquids, hydrostatic pressure bearing block 53 is maintained the center, these the two groups guide bracket bodies 531 that are located in hydrostatic pressure bearing block 53 are then guided by two groups of hydrostatic pressure slide rails 54, so main shaft 52 is during processing, if need elastic displacement, then main shaft can by the support of hydrostatic pressure slide rail 54, guarantee that main shaft can remain on main shaft 52 centers.
And when the center of the center of two groups of symmetrical hydrostatic pressure slide rails 54 and hydrostatic pressure bearing block 53 on same center line, the minim gap that the oil pocket 532 of this hydrostatic pressure bearing block 53 is identical with the maintenance of corresponding hydrostatic pressure slide rail 54 guiding face A palpus, so during the start of hydrostatic pressure system, hydrostatic pressure slide rail 54 is able to this minim gap, by the pressure of oil pocket 532 hydraulic oil hydrostatic pressure bearing block 53 is maintained the center.
The present invention uses at the corresponding hydrostatic pressure slide rail of hydrostatic pressure bearing block end face and is provided with oil pocket, and main shaft and hydrostatic pressure bearing block in the adjustment of when assembling behind same center line, allow hydraulic oil liquid lead oil suction chamber via entering oilhole, because oil pressure keeps a gap, so the boring and milling machine main shaft during elastic processing, can remain on the center.
Oil pocket on the hydrostatic pressure bearing block of the present invention is V-type, and is left-right symmetry, so, although the variations in temperature during the processing also can not affect the center of main shaft; In addition, during the start of hydrostatic pressure system, all maintain a gap between hydrostatic pressure bearing and hydrostatic pressure slide rail, do not produce so do not have abrasion.
The present invention is a kind of milling machine spindle supplemental support railroad of warding off, and its feature and effect are as follows:
It mainly is provided with a main shaft in the inner group of ram, and the corresponding group in rear-end of spindle place is provided with the hydrostatic pressure bearing block, in between hydrostatic pressure bearing block two respective side and ram, be respectively equipped with the hydrostatic pressure slide rail again, continue at the corresponding hydrostatic pressure slide rail of hydrostatic pressure bearing block end face and be provided with oil pocket, and main shaft and hydrostatic pressure bearing block in the adjustment of when assembling behind same center line, allow hydraulic oil liquid lead oil suction chamber via oiler, make its main shaft and hydrostatic pressure bearing block via the support of hydrostatic pressure slide rail, can guarantee to ward off during the elastic processing of milling machine spindle, can remain on the center.To sum up, boring and milling machine main shaft supplemental support railroad of the present invention, main purpose is for allowing main shaft 52 add man-hour in elastic displacement, the displacement state that can keep the central horizontal line, allow main shaft 52 not have the phenomenon of skew wearing and tearing, processing can be able to reached on the one hand accurately, the service life of main shaft 52 can be prolonged on the other hand.
The present invention can be applicable to tool machine spindle, and during processing, main shaft 52 must elastic displacement, and with the support of hydrostatic pressure slide rail 54, guarantees that boring and milling machine main shaft 52 can remain on alignment of shafts position; Machinery such as one boring and milling machine main shaft, the console mode boring and milling machine main shaft etc. used.
Above for only being the schematic part embodiment of the present invention; be not to limit the scope of the invention; any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should be included within this patent protection domain.
Claims (1)
1. a boring and milling machine main shaft supplemental support railroad is characterized in that, the added ram that is provided with of main spindle box be provided with a main shaft in the inner group of ram, and the corresponding group in rear-end of spindle place is provided with the hydrostatic pressure bearing block, wherein:
Described hydrostatic pressure bearing block two respective side are extended the guide bracket body, the external side of this guide bracket is coated with the hydrostatic pressure slide rail, hydrostatic pressure slide rail then corresponding the combination with ram is fixed, two corresponding end faces in the corresponding hydrostatic pressure slide rail of guide bracket body are provided with oil pocket again, and oil pocket forms guiding face with corresponding hydrostatic pressure slide rail, is provided with into the corresponding conducting oil pocket of oilhole by the guide bracket body again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210481.5A CN102896330B (en) | 2011-07-26 | 2011-07-26 | Auxiliary slide rail support device for main shaft of boring-milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210481.5A CN102896330B (en) | 2011-07-26 | 2011-07-26 | Auxiliary slide rail support device for main shaft of boring-milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896330A true CN102896330A (en) | 2013-01-30 |
| CN102896330B CN102896330B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110210481.5A Expired - Fee Related CN102896330B (en) | 2011-07-26 | 2011-07-26 | Auxiliary slide rail support device for main shaft of boring-milling machine |
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| CN (1) | CN102896330B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690559A (en) * | 2013-12-06 | 2015-06-10 | 武汉重型机床集团有限公司 | Horizontal boring spindle tail support double-line-rail supporting structure and installation method |
| CN110480037A (en) * | 2019-08-20 | 2019-11-22 | 山东大侨发展股份有限公司 | A kind of floor-type milling & boring machine hydrostatic slideway headstock structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119502A (en) * | 1985-06-19 | 1986-01-28 | Matsushita Electric Ind Co Ltd | Spindle device |
| US20040082281A1 (en) * | 2002-10-25 | 2004-04-29 | Mori Seiki Co., Ltd. | Machine tool |
| CN2915330Y (en) * | 2005-12-16 | 2007-06-27 | 蚌埠市富瑞达机床机械制造有限公司 | Boring and milling head |
| TW201100662A (en) * | 2009-06-25 | 2011-01-01 | Nat Univ Chin Yi Technology | Oil-nipple-less static hydraulic pressure slide guide platform |
| CN201792240U (en) * | 2010-09-17 | 2011-04-13 | 王元庆 | Horizontal high-speed spindle device |
| WO2011080820A1 (en) * | 2009-12-28 | 2011-07-07 | 三菱重工業株式会社 | Deflection correction device for ram |
-
2011
- 2011-07-26 CN CN201110210481.5A patent/CN102896330B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119502A (en) * | 1985-06-19 | 1986-01-28 | Matsushita Electric Ind Co Ltd | Spindle device |
| US20040082281A1 (en) * | 2002-10-25 | 2004-04-29 | Mori Seiki Co., Ltd. | Machine tool |
| CN2915330Y (en) * | 2005-12-16 | 2007-06-27 | 蚌埠市富瑞达机床机械制造有限公司 | Boring and milling head |
| TW201100662A (en) * | 2009-06-25 | 2011-01-01 | Nat Univ Chin Yi Technology | Oil-nipple-less static hydraulic pressure slide guide platform |
| WO2011080820A1 (en) * | 2009-12-28 | 2011-07-07 | 三菱重工業株式会社 | Deflection correction device for ram |
| CN201792240U (en) * | 2010-09-17 | 2011-04-13 | 王元庆 | Horizontal high-speed spindle device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690559A (en) * | 2013-12-06 | 2015-06-10 | 武汉重型机床集团有限公司 | Horizontal boring spindle tail support double-line-rail supporting structure and installation method |
| CN104690559B (en) * | 2013-12-06 | 2017-10-20 | 武汉重型机床集团有限公司 | The horizontal Double line rail supporting construction of boring axle aft mount and installation method |
| CN110480037A (en) * | 2019-08-20 | 2019-11-22 | 山东大侨发展股份有限公司 | A kind of floor-type milling & boring machine hydrostatic slideway headstock structure |
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| Publication number | Publication date |
|---|---|
| CN102896330B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20170726 |