CN101716725B - Oil film static-pressure guide device - Google Patents
Oil film static-pressure guide device Download PDFInfo
- Publication number
- CN101716725B CN101716725B CN200910217320.1A CN200910217320A CN101716725B CN 101716725 B CN101716725 B CN 101716725B CN 200910217320 A CN200910217320 A CN 200910217320A CN 101716725 B CN101716725 B CN 101716725B
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- China
- Prior art keywords
- guide rail
- oil
- saddle
- oil film
- guide device
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- 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
- 239000003921 oil Substances 0.000 claims abstract description 82
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000000446 fuel Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 10
- 238000013023 gasketing Methods 0.000 claims description 8
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 241000397426 Centroberyx lineatus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Machine Tool Units (AREA)
Abstract
The invention provides an oil film static-pressure guide device belonging to the technical field of machine tool equipment and solving the problems of the poor tightness, nonuniform oil ways, the easy guide rail abrasion, low product processing precision and hydraulic oil utility ratio, environment pollution, and the like of the traditional hard guide rail. The oil film static-pressure guide device compromises a guide rail rack, a large planker, a small planker and a hydraulic pump, wherein the guide rail rack is provided with a guide rail; the large planker is arranged on the guide rail; the small planker is arranged on the large planker; the large planker is provided with an oil supply mechanism which communicates the large planker with the hydraulic pump and enables hydraulic oil to form an oil film between the large planker and the guide rail; and the guide rail rack is provided with a sealing mechanism which can prevent the hydraulic oil from overflowing. The invention has the advantages of uniform oil film distribution, good processing stability, high processing precision, good rigidity, and the like.
Description
Technical field
The invention belongs to technical field of lathe equipment, relate to a kind of guide rail, particularly a kind of oil film static-pressure guide device.
Background technology
Lathe is the lathe with lathe tool, rotational workpieces being carried out to machining, and in machining, lathe is widely used.
Lathe comprises lathe bed, and lathe bed has guide rail, and guide rail is placed with planker, and lathe tool is connected on planker.In processing work process, planker is moved along guide rail, and lathe tool just moves along with relative to guide rail, thus completes the cutting operation to workpiece.In order to reach transverse direction and straight-cut, the upper slide rest that usual planker comprises transversely movable saddle and can vertically move, saddle has guide rail, and upper slide rest is just placed on the guide rail of saddle.Can find out, after above-mentioned lathe uses a period of time, between planker and guide rail, larger wearing and tearing can be produced, guide rail is easily damaged, thus affect the machining accuracy of workpiece.
For this reason, people are provided with a lubricating arrangement on lathe, and the flowline of lubricating arrangement is corresponding with the position of guide rail.Although above-mentioned lubricating arrangement can lubricate guide rail, above-mentioned greasing lubricating oil waste is comparatively large, makes lubrication cost higher.And can pollute working environment.
Someone has carried out various improvement to lathe, such as: Chinese patent literature discloses a kind of hydrostatic slideway [application number: 03271789.X, Authorization Notice No.: CN2635271Y], it comprises axle, slide block, fixed head, two parallel circular shaft two ends are connected by fixed head, slide block has the hole of dress axle, the space of slide block and between centers is hydraulic fluid chamber.Although reduce the friction between slide block and axle like this, the hydraulic oil skewness existed between slide block and axle causes that machining accuracy is low, sealing extreme difference, guide rail are fragile, waste lubricating oil causes the problems such as environmental pollution.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, invented that a kind of anti-wear performance and sealing are strong, stability and operational effect good and fuel-efficient can also the oil film static-pressure guide device of environmental protection.
Object of the present invention realizes by following technical proposal: a kind of oil film static-pressure guide device, comprise guide rail bracket, saddle and upper slide rest, described guide rail bracket is provided with guide rail, described saddle is arranged on guide rail, described upper slide rest is arranged on saddle, it is characterized in that, this device also comprises hydraulic pump, described saddle place is provided with UNICOM's saddle and hydraulic pump and can makes hydraulic oil between saddle and guide rail, form the oil supply structure of oil film, and guide rail bracket place is provided with the hermetically-sealed construction that can prevent hydraulic oil from overflowing.
During work, hermetically-sealed construction prevents hydraulic oil from overflowing, make hydraulic oil form oil film between saddle and guide rail by oil supply structure, the upper slide rest that oil film holds up saddle and is arranged on saddle, saddle and the movement of upper slide rest at guide rail place can be realized by common screw rod transmission.
In use, form oil film between saddle and guide rail, saddle and guide rail there are not wearing and tearing in theory, even if saddle and guide rail exist and wear and tear in reality, but the coefficient of waste is minimum, the therefore long service life of this oil film static-pressure guide device.
In above-mentioned oil film static-pressure guide device, described oil supply structure comprises saddle sidepiece and has several fuel feed holes, described fuel feed hole and the port of export of hydraulic pump are connected, the contact bottom surface of described saddle and guide rail is provided with several oil outlets, the contact side of saddle and guide rail is provided with several oil-through holes, described oil outlet and oil-through hole are connected with fuel feed hole respectively, and the bottom of described guide rail is provided with spill port, and described spill port and the entrance point of hydraulic pump are connected.
Hydraulic pump makes hydraulic oil enter in saddle through the fuel feed hole that saddle sidepiece has, hydraulic oil flows out from the oil-through hole be connected with fuel feed hole and oil outlet again, hermetically-sealed construction prevents hydraulic oil from overflowing, one deck oil film is just defined between saddle and guide rail, the upper slide rest that oil film holds up saddle and is arranged on saddle, can flow into hydraulic pump from the spill port bottom guide rail after hydraulic oil continues to enter and form recycling of hydraulic oil, can also play so fuel-efficient can also the effect of environmental protection.
In use, form oil film between saddle and guide rail, saddle and guide rail there are not wearing and tearing in theory, even if saddle and guide rail exist and wear and tear in reality, but the coefficient of waste is minimum, the therefore long service life of this oil film static-pressure guide device.
In above-mentioned oil film static-pressure guide device, described hermetically-sealed construction comprises sealing strip, be positioned at rail end and and the sealing block that is connected of guide rail bracket, described sealing strip is positioned at the upper end of the guide rail contacted with saddle.The setting of sealing strip prevents hydraulic oil to overflow from guide rail upper end, the setting of sealing block prevents hydraulic oil to overflow from rail end, such hydraulic oil can not overflow and other parts of making dirty, and the overall sealing performance of this device is good, makes working environment clean totally pollution-free.
In above-mentioned oil film static-pressure guide device, between described rail end and sealing block, be provided with rubber sheet gasketing.The setting of rubber sheet gasketing ensure that extremely strong sealing.
In above-mentioned oil film static-pressure guide device, the contact side of described saddle and guide rail is provided with groove, the described oil-through hole described in groove UNICOM.Groove is by oil-through hole UNICOM, and hydraulic oil can enter groove when oil-through hole flows out, and hydraulic oil is evenly distributed in the contact side of saddle and guide rail, makes the oil film that formed between saddle and guide rail even especially like this.
In above-mentioned oil film static-pressure guide device, described groove is fish line cross-like, and described oil-through hole is positioned at the infall of groove.
As the second situation, in above-mentioned oil film static-pressure guide device, described groove is in cross-like in length and breadth, and described oil-through hole is positioned at the infall of groove.
In above-mentioned oil film static-pressure guide device, the both sides of described saddle are provided with shackle member, described shackle member and the bottom surface of the saddle be positioned at outside guide rail bracket fix and with the sidepiece phase clamping of guide rail bracket.When hydraulic oil continues to enter between saddle and guide rail, saddle existence can be held up too high problem by oil film, and the setting of shackle member limits the lifting height of saddle at guide rail place, makes saddle operationally stable; And shackle member limits the gap between saddle and guide rail, make the durable use of guide rail by the oil film produced.
In above-mentioned oil film static-pressure guide device, between described shackle member and the sidepiece of guide rail bracket, be provided with tapered gag.Even if there is certain gap between shackle member and the sidepiece of guide rail bracket, but the setting of tapered gag eliminates this gap, and makes shackle member move more stable along guide rail along with saddle.
In above-mentioned oil film static-pressure guide device, the guide rail of described guide rail bracket is V-shaped recessed gathering sill, described saddle has the shape matched with guide rail.Such installation and maintenance more for convenience.
Compared with prior art, oil film static-pressure guide device provided by the invention has the following advantages:
1, the good seal performance of this oil film static-pressure guide device, uniform oil film distribution, hydraulic oil can recycle, and the utilization rate of hydraulic oil is high, fuel-efficient can also environmental protection
2, groove in this oil film static-pressure guide device connects oil-through hole, and the hydraulic oil between saddle and guide rail is evenly distributed, and the oil film namely formed is even, make the good stability of saddle when guide rail place moves and processing work precision high.
3, in this oil film static-pressure guide device, the setting of shackle member and tapered gag limits the lifting height of saddle at guide rail place, makes saddle operationally stable; And shackle member limits the gap between saddle and guide rail, make the durable use of guide rail, rigidity good by the oil film produced.
Accompanying drawing explanation
Fig. 1 is the perspective view of this oil film static-pressure guide device.
Fig. 2 is the main TV structure schematic diagram of this oil film static-pressure guide device.
Fig. 3 is the side-looking structural representation of this oil film static-pressure guide device.
Fig. 4 is the structural representation of saddle in this oil film static-pressure guide device.
Fig. 5 is the perspective view of tapered gag in this oil film static-pressure guide device.
Fig. 6 is the sectional structure schematic diagram of saddle in this oil film static-pressure guide device.
Fig. 7 is the another kind of structural representation of saddle in this oil film static-pressure guide device.
In figure, 1, guide rail bracket; 1a, guide rail; 2, saddle; 3, upper slide rest; 4, fuel feed hole; 5, oil outlet; 6, oil-through hole; 7, spill port; 8, hermetically-sealed construction; 8a, sealing strip; 8b, sealing block; 8c, rubber sheet gasketing; 9, groove; 10, shackle member; 11, tapered gag.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, this oil film static-pressure guide device is made up of guide rail bracket 1, saddle 2 and upper slide rest 3 etc.
Specifically, guide rail bracket 1 is provided with longitudinal guide rail 1a, guide rail 1a is capable recessed gathering sill in V, and saddle 2 to be arranged on guide rail 1a and to have the shape matched with guide rail 1a, and saddle 2 realizes the movement in vertical equity direction on guide rail 1a.Upper slide rest 3 is arranged on saddle 2, and saddle 2 top has horizontal swallow-tail form projection, and upper slide rest 3 bottom surface has the dovetail groove matched with swallow-tail form projection, and upper slide rest 3 is set on saddle 2 to realize the movement in transverse horizontal direction.
Be placed with hydraulic pump outside guide rail bracket 1, according to actual conditions, hydraulic pump can be connected with guide rail bracket 1 or when this oil film static-pressure guide device is placed on lathe, hydraulic pump is positioned at the cabinet below guide rail bracket 1.Saddle 2 place is provided with UNICOM's saddle 2 and hydraulic pump and can makes hydraulic oil between saddle 2 and guide rail 1a, form the oil supply structure of oil film, the sidepiece that oil supply structure is included in saddle 2 has two fuel feed holes 4, fuel feed hole 4 is connected with the port of export of hydraulic pump, saddle 2 is provided with two oil outlets 5 with the contact bottom surface of guide rail 1a, saddle 2 is provided with several oil-through holes 6 with the contact side of guide rail 1a, and the quantity of oil-through hole 6 is determined according to truth situation.Be provided with spill port 7 in the bottom of guide rail 1a, spill port 7 is connected with the entrance point of hydraulic pump, and such hydraulic oil reenters hydraulic cylinder again bottom guide rail bracket 1, and hydraulic oil recycles, and the utilization ratio of hydraulic oil is high.As shown in Figure 6, oil outlet 5 and oil-through hole 6 are connected respectively at fuel feed hole 4.
The hermetically-sealed construction 8 that can prevent hydraulic oil from overflowing is provided with at guide rail bracket 1 place, hermetically-sealed construction 8 comprises sealing strip 8a, be positioned at guide rail 1a end and and the sealing block 8b that is connected of guide rail bracket 1, sealing strip 8a is positioned at the upper end of the guide rail 1a contacted with saddle 2, is provided with rubber sheet gasketing 8c between guide rail 1a end and sealing block 8b.The setting of sealing strip 8a prevents hydraulic oil to overflow from guide rail 1a upper end, and the setting of sealing block 8b prevents hydraulic oil to overflow from guide rail 1a end, and such hydraulic oil can not overflow and other parts of making dirty, and the overall sealing performance of this device is good.The setting of rubber sheet gasketing 8c ensure that sealing property more.
As shown in Figure 4, saddle 2 is provided with groove 9, groove 9 UNICOM oil-through hole 6 with the contact side of guide rail 1a, and the groove 9 in the present embodiment is in fish line cross-like, and oil-through hole 6 is positioned at the infall of groove 9.Groove 9 is by oil-through hole 6 UNICOM, and hydraulic oil can enter groove 9 when oil-through hole 6 flows out, and hydraulic oil is evenly distributed in the contact side of saddle 2 and guide rail 1a, and the oil film uniformity formed between such saddle 2 and guide rail 1a is good.Ensure this stability with oil film static-pressure guide device operation and precision.
As shown in Figure 3 and Figure 5, the both sides of saddle 2 are provided with L-shaped shackle member 10, shackle member 10 is fixed with the underrun screw of the saddle 2 be positioned at outside guide rail bracket 1, and shackle member 10 and the sidepiece phase clamping of guide rail bracket 1, be provided with tapered gag 11 between the sidepiece of shackle member 10 and guide rail bracket 1.
During work, hydraulic oil is made to enter in saddle 2 through the fuel feed hole 4 that saddle 2 sidepiece has by hydraulic pump, hydraulic oil flows out from the oil-through hole 6 be connected with fuel feed hole 4 and oil outlet 5 again, the hydraulic oil flowed out from oil-through hole 6 can enter groove 9, hydraulic oil is evenly distributed in saddle 2 and the contact side of guide rail 1a, is positioned at bottom saddle 2 from the hydraulic oil of oil outlet 5 outflow.Sealing strip 8a prevents hydraulic oil to overflow from guide rail 1a upper end, sealing block 8b and rubber sheet gasketing 8c prevents hydraulic oil to overflow from guide rail 1a end, the uniform oil film of one deck is just defined between such saddle 2 and guide rail 1a, the upper slide rest 3 that oil film holds up saddle 2 and is arranged on saddle 2, can realize saddle 2 and the movement of upper slide rest 3 at guide rail 1a place by common screw rod transmission.
When hydraulic oil continues to enter between saddle 2 and guide rail 1a, saddle 2 existence can be held up too high problem by oil film, and the setting of shackle member 10 then limits the lifting height of saddle 2 at guide rail 1a place, makes saddle 2 operationally stable; And shackle member 10 limits the gap between saddle 2 and guide rail 1a, even if there is certain gap between the sidepiece of shackle member 10 and guide rail bracket 1, but the setting of tapered gag 11 eliminates this gap, make the thickness of oil film very little, ensure the rigidity at guide rail 1a place.Last hydraulic oil can flow into guide rail bracket 1 inner chamber again by the entrance point of hydraulic pump from the spill port 7 bottom guide rail 1a, hydraulic pump makes hydraulic oil again flow into fuel feed hole 4, so just forms recycling of hydraulic oil.
Embodiment 2
As shown in Figure 7, the present embodiment is substantially identical with structure with the principle of embodiment 1, and different place is, groove in the present embodiment 9 is in cross-like in length and breadth, and oil-through hole 6 is positioned at the infall of groove 9.Such hydraulic oil enters in groove 9 from oil-through hole 6, being full of hydraulic oil in groove 9 makes hydraulic oil evenly be distributed in fully between saddle 2 and guide rail 1a, determine the uniformity of oil film, ensure this stability with oil film static-pressure guide device operation and precision.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as guide rail bracket 1, guide rail 1a, saddle 2, upper slide rest 3, fuel feed hole 4, oil outlet 5, oil-through hole 6, spill port 7, hermetically-sealed construction 8, sealing strip 8a, sealing block 8b, rubber sheet gasketing 8c, groove 9, shackle member 10, tapered gag 11 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (6)
1. an oil film static-pressure guide device, comprise guide rail bracket (1), saddle (2) and upper slide rest (3), described guide rail bracket (1) is provided with guide rail (1a), described saddle (2) is arranged on guide rail (1a), described upper slide rest (3) is arranged on saddle (2), it is characterized in that, this oil film static-pressure guide device also comprises hydraulic pump
The guide rail (1a) of described guide rail bracket (1) is V-shaped recessed gathering sill, described saddle (2) has the shape matched with guide rail (1a); Saddle (2) embeds in guide rail (1a);
Described saddle (2) place is provided with and is communicated with saddle (2) and hydraulic pump and hydraulic oil can be made between saddle (2) and guide rail (1a) to form the oil supply structure of oil film, described oil supply mechanism comprises saddle (2) sidepiece and has several fuel feed holes (4), described fuel feed hole (4) is connected with the port of export of hydraulic pump, described saddle (2) is provided with several oil outlets (5) with the contact bottom surface of guide rail (1a), saddle (2) is provided with groove (9) and several oil-through holes (6) with the contact side of guide rail (1a), described oil outlet (5) is connected with fuel feed hole (4) respectively with oil-through hole (6), the bottom of described guide rail (1a) is provided with spill port (7), described spill port (7) is connected with the entrance point of hydraulic pump, be positioned at same saddle (2) and oil-through hole (6) on the contact side of guide rail (1a) and be positioned at the above-mentioned groove (9) contacted on side and be connected,
The both sides of described saddle (2) are all fixed with L-shaped shackle member (10), the sidepiece phase clamping of described shackle member (10) and guide rail bracket (1);
Guide rail bracket (1) place is provided with the hermetically-sealed construction (8) that can prevent hydraulic oil from overflowing.
2. oil film static-pressure guide device according to claim 1, it is characterized in that, described hermetically-sealed construction (8) comprises sealing strip (8a), be positioned at guide rail (1a) end and and the sealing block (8b) that is connected of guide rail bracket (1), described sealing strip (8a) is positioned at the upper end of the guide rail (1a) contacted with saddle (2).
3. oil film static-pressure guide device according to claim 2, is characterized in that, is provided with rubber sheet gasketing (8c) between described guide rail (1a) end and sealing block (8b).
4. oil film static-pressure guide device according to claim 1, is characterized in that, described groove (9) is in fish line cross-like, and described oil-through hole (6) is positioned at the infall of groove (9).
5. oil film static-pressure guide device according to claim 1, is characterized in that, described groove (9) is in cross-like in length and breadth, and described oil-through hole (6) is positioned at the infall of groove (9).
6. oil film static-pressure guide device according to claim 1, is characterized in that, is provided with tapered gag (11) between described shackle member (10) and the sidepiece of guide rail bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217320.1A CN101716725B (en) | 2009-12-31 | 2009-12-31 | Oil film static-pressure guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217320.1A CN101716725B (en) | 2009-12-31 | 2009-12-31 | Oil film static-pressure guide device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101716725A CN101716725A (en) | 2010-06-02 |
| CN101716725B true CN101716725B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910217320.1A Expired - Fee Related CN101716725B (en) | 2009-12-31 | 2009-12-31 | Oil film static-pressure guide device |
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| Country | Link |
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| CN (1) | CN101716725B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618627A (en) * | 2021-10-09 | 2021-11-09 | 北京博鲁斯潘精密机床有限公司 | Static pressure guide rail pair of aeroengine blade tenon and blade grinding machine tool |
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| CN102172837A (en) * | 2011-03-17 | 2011-09-07 | 江苏新瑞重工科技有限公司 | Plane sealing structure of fluid unloading cavity for machine tool guide rail |
| CN103659288A (en) * | 2013-11-06 | 2014-03-26 | 西安理工大学 | A static pressure rail |
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| CN105033359A (en) * | 2015-06-30 | 2015-11-11 | 宁波市鄞州泰盛数控设备有限公司 | Horizontal sliding device of gear machining machine |
| CN106984979A (en) * | 2017-04-09 | 2017-07-28 | 北京工业大学 | A kind of groined type chamber static pressure panoramic table lubricating pad |
| TWI681837B (en) * | 2018-11-22 | 2020-01-11 | 財團法人工業技術研究院 | Machine tool |
| CN112476069B (en) * | 2020-11-30 | 2022-12-06 | 重庆聚飞金属科技有限公司 | Automatic accessory surface treatment production line |
| CN112520571B (en) * | 2020-11-30 | 2023-01-03 | 重庆聚飞金属科技有限公司 | Automatic accessory surface treatment production process |
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| CN2082655U (en) * | 1990-09-24 | 1991-08-14 | 李斌 | Liquid static pressure guide rail |
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| CN200989379Y (en) * | 2006-12-14 | 2007-12-12 | 南京工艺装备制造有限公司 | Damper sliding block of rolling linear guide rail pair |
| CN101585143A (en) * | 2009-07-08 | 2009-11-25 | 路文忠 | Ultraprecise electrohydraulic servocontrol static-pressure linear slide way |
| CN101590603A (en) * | 2009-07-08 | 2009-12-02 | 路文忠 | Precision static pressure linear guide rail |
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2009
- 2009-12-31 CN CN200910217320.1A patent/CN101716725B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082655U (en) * | 1990-09-24 | 1991-08-14 | 李斌 | Liquid static pressure guide rail |
| CN2635271Y (en) * | 2003-07-01 | 2004-08-25 | 潘旭华 | Static pressure guide rail |
| DE102005038341A1 (en) * | 2005-08-13 | 2007-02-15 | Schaeffler Kg | Hydrostatic profiled rail guide |
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| CN200939560Y (en) * | 2006-08-28 | 2007-08-29 | 上海机床厂有限公司 | Closed static pressure guideway structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113618627A (en) * | 2021-10-09 | 2021-11-09 | 北京博鲁斯潘精密机床有限公司 | Static pressure guide rail pair of aeroengine blade tenon and blade grinding machine tool |
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| Publication number | Publication date |
|---|---|
| CN101716725A (en) | 2010-06-02 |
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Granted publication date: 20150603 Termination date: 20191231 |