CN114043258B - Hydrostatic guideway capable of inhibiting thermal deformation - Google Patents
Hydrostatic guideway capable of inhibiting thermal deformation Download PDFInfo
- Publication number
- CN114043258B CN114043258B CN202111467849.6A CN202111467849A CN114043258B CN 114043258 B CN114043258 B CN 114043258B CN 202111467849 A CN202111467849 A CN 202111467849A CN 114043258 B CN114043258 B CN 114043258B
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- China
- Prior art keywords
- guideway
- guide rail
- oil
- hydrostatic
- hydraulic oil
- 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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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 27
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 59
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 239000010438 granite Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000004579 marble Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
-
- 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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
Abstract
The invention discloses a hydrostatic guideway capable of inhibiting thermal deformation, which belongs to the field of hydrostatic guideways, and comprises a guideway I and a guideway II, wherein the guideway I is embedded in the guideway II, the guideway I and the guideway II can slide relatively, a plurality of oil cavities are arranged between the guideway I and the guideway II, the guideway II is made of metal materials, the guideway II has toughness, a first heat insulation layer is arranged at the adjacent part of the guideway II and the oil cavity and is used for separating hydraulic oil in the oil cavity from a metal body of the guideway II, the guideway II is made of metal materials, the bending strength of the guideway II when the guideway II is subjected to the pressure of the hydraulic oil in the oil cavity is ensured, the guideway II is prevented from breaking after the pressure of the hydraulic oil in the oil cavity, a first heat insulation layer is arranged at the adjacent part of the guideway II and is used for separating the hydraulic oil in the oil cavity from the guideway II, the heat insulation layer can separate the oil cavity from the guideway II, the influence of the temperature fluctuation of the hydraulic oil in the oil cavity on the guideway II is relieved, and the thermal expansion deformation of the guideway II is greatly reduced.
Description
Technical Field
The invention relates to the field of hydrostatic guide rails, in particular to a hydrostatic guide rail capable of inhibiting thermal deformation.
Background
The ultra-precise machine tool requires the guide rail to have extremely high manufacturing precision, simultaneously requires the coupling surface to have no friction and abrasion, and based on the requirements, the hydrostatic guide rail is widely applied to the design of the ultra-precise machine tool. Hydrostatic guideway is generally classified into oil hydrostatic guideway and air hydrostatic guideway. The oil hydrostatic guide rail generally comprises a fixed guide rail and a movable guide rail which is assembled on the fixed guide rail in a sliding way, hydraulic oil with certain pressure is input into an oil cavity on a guide surface between the fixed guide rail and the movable guide rail through a throttle, a bearing oil film can be formed, the guide surface between the fixed guide rail and the movable guide rail is in a pure liquid friction state, and the movable guide rail has small moving friction, high precision and good stability on the fixed guide rail.
The existing oil hydrostatic guideway is generally made of steel, when hydraulic oil with certain pressure is injected into an oil cavity, the hydraulic oil can generate higher temperature, and an oil cooler is generally used for cooling the oil, but the oil temperature generally fluctuates within the range of 2-5 ℃, and the fixed guideway and the movable guideway generate uneven thermal expansion deformation under larger temperature fluctuation due to higher thermal expansion coefficient and conductivity coefficient of the steel, so that the accuracy and flexibility of the guideway are affected.
For solving the above-mentioned problem in the existing market, a closed hydrostatic guideway is disclosed, patent publication number is CN101829904A, the on-line screen storage device comprises a base and the upper surface of the slider base that sets up on the base has set gradually horizontal support rail and vertical support rail from bottom to top, the slider is inlayed in the recess that forms by base, horizontal support rail and vertical support rail, and set up the hydrostatic oil pocket between the upper surface of slider and the lower surface of vertical support rail, set up the hydrostatic oil pocket between the lower surface of slider and the upper surface of base, set up the hydrostatic oil pocket between the side surface of slider and the side surface of horizontal support rail, vertical support rail, horizontal support rail and base all adopt granite material to make.
Because granite material has the advantage that coefficient of thermal conductivity is low, coefficient of thermal expansion is low, above-mentioned patent is through adopting granite material to make with fixed guide rail and movable guide rail, when the hydraulic oil is input in the static pressure oil pocket, fixed guide rail and movable guide rail can not be heated and thermal expansion takes place, but, hydraulic oil input to static pressure oil pocket in has certain pressure, the pressure in the oil pocket is generally 3 megapascals, pressure can act on fixed guide rail and movable guide rail, because granite does not have toughness, the friability is great, bending resistance ability is not strong, the pressure of hydraulic oil in the static pressure oil pocket acts on the guide rail of cover outside, can make the guide rail of outside break easily, so little use granite material on the hydrostatic pressure guide rail.
Disclosure of Invention
The invention aims to provide a hydrostatic guideway with good bending resistance and capable of inhibiting thermal expansion deformation.
The technical scheme of the invention is as follows: the hydrostatic guideway capable of inhibiting thermal deformation is characterized by comprising a guideway I and a guideway II, wherein the guideway I is embedded in the guideway II, the guideway I and the guideway II can slide relatively, a plurality of oil cavities are arranged between the guideway I and the guideway II, the guideway II is made of metal materials, the guideway II has toughness, a heat insulation layer I is arranged at the adjacent part of the guideway II and the oil cavity, and the heat insulation layer I is used for separating hydraulic oil input into the oil cavity and a metal body of the guideway II.
The further optimization scheme of the invention is as follows: and a part of the second guide rail, which is not provided with the first heat insulation layer, is coated with the second heat insulation layer.
The further optimization scheme of the invention is as follows: the oil cavities are symmetrically arranged on two sides of the first guide rail.
The further optimization scheme of the invention is as follows: the first guide rail is made of stone materials.
The further optimization scheme of the invention is as follows: the first guide rail is made of granite, marble or engineering ceramics.
The further optimization scheme of the invention is as follows: the first heat insulating layer is made of granite, marble or engineering ceramic.
The further optimization scheme of the invention is as follows: the two heat insulation layers comprise heat insulation plastic.
The further optimization scheme of the invention is as follows: the guide rail II comprises a middle plate and two side plates, the two side plates are respectively connected to two sides of the middle plate, the end parts of the two side plates are respectively connected with a transverse plate, the middle plate, the side plates and the transverse plates are enclosed to form grooves, groove openings of the two sides are opposite, and the guide rail I is embedded in the grooves of the two sides.
Compared with the prior art, the invention has the advantages that the first guide rail is embedded in the second guide rail, a plurality of oil cavities are arranged between the first guide rail and the second guide rail, the second guide rail is made of metal materials, the bending strength of the second guide rail when the second guide rail is subjected to the pressure of hydraulic oil in the oil cavities is ensured, the second guide rail is prevented from being broken after being subjected to the pressure of the hydraulic oil in the oil cavities, the adjacent part of the second guide rail and the oil cavities is provided with the first heat insulation layer, the first heat insulation layer is used for separating the hydraulic oil in the input oil cavities from the metal body of the second guide rail, the first heat insulation layer can separate the oil cavities from the second guide rail, the influence of the fluctuation of the temperature of the hydraulic oil in the oil cavities on the second guide rail is relieved, and the second guide rail is greatly reduced in thermal expansion deformation.
Drawings
The present invention will be described in further detail below in conjunction with the drawings and preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the background and explaining the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a longitudinal sectional view of the present invention.
Fig. 3 is a transverse cross-sectional view of the present invention.
Fig. 4 is an exploded view of the present invention.
In the figure: 1. a second guide rail; 2. a first guide rail; 3. a cross plate; 4. a first heat insulation layer; 5. an oil chamber; 6. a side plate; 7. an intermediate plate; 8. a groove.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.
It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The hydrostatic guideway capable of inhibiting thermal deformation shown in fig. 1-4 comprises a guideway first 2 and a guideway second 1, wherein the guideway first 2 is embedded in the guideway second 1, and the guideway first 2 and the guideway second 1 can slide relatively.
Specifically: as shown in fig. 2, the guide rail two 1 comprises a middle plate 7 and two side plates 6, the two side plates 6 are distributed left and right and are respectively connected to two sides of the middle plate 7, the end parts of the two side plates 6 are connected with transverse plates 3, the middle plate 7, the side plates 6 and the transverse plates 3 are enclosed to form grooves 8, the grooves 8 formed on the two sides are opposite in notch, and the two ends of the guide rail one 2 are embedded in the grooves 8 on the two sides.
A plurality of oil cavities 5 are arranged between the first guide rail 2 and the second guide rail 1, hydraulic oil with certain pressure is input into each oil cavity 5 through a restrictor, and a bearing oil film can be formed, so that the first guide rail 2 and the second guide rail 1 are in a pure liquid friction state, and the first guide rail 2 and the second guide rail 1 have high precision and small resistance when relatively sliding. The installation, relative sliding and setting of the oil chamber 5 of the first and second guide rails 2 and 1 are the same as those of the existing hydrostatic guide rail, and this embodiment will not be described in detail.
Preferably, the first guide rail 2 is a fixed guide rail, the second guide rail 1 is a movable guide rail, the first guide rail 2 is embedded in the second guide rail 1, and the second guide rail 1 is assembled on the first guide rail 2 and can slide along the first guide rail 2.
The guide rail II 1 is made of metal materials, the guide rail II 1 has toughness, and preferably, the guide rail II 1 is made of steel, and the bending resistance of the guide rail II 1 is ensured by manufacturing the guide rail II 1 through steel.
As shown in fig. 2-3, a first heat insulating layer 4 is arranged on the adjacent part of the second guide rail 1 and the oil cavity 5, and the first heat insulating layer 4 is used for separating hydraulic oil input into the oil cavity 5 and a metal body of the second guide rail 1. The first heat insulating layer 4 can be fixed on the second guide rail 1 by gluing or screws.
Preferably, the first heat insulating layer 4 is made of granite or marble or engineering ceramic, and the first heat insulating layer 4 has the advantages of low thermal expansion coefficient and low thermal conductivity through granite or marble or engineering ceramic.
When hydraulic oil is input into each oil cavity 5 between the first guide rail 2 and the second guide rail 1, the first heat insulation layer 4 is arranged between the hydraulic oil and the metal body of the second guide rail 1, the influence of the temperature fluctuation of the hydraulic oil in the oil cavity 5 on the second guide rail 1 is slowed down, the thermal expansion deformation of the second guide rail 1 is greatly reduced, the pressure of the hydraulic oil input into the oil cavity 5 acts on the second guide rail 1, the second guide rail 1 is made of metal materials, the second guide rail 1 has strong bending resistance, and the second guide rail 1 is not easy to be pressed to bend and break, so that the second guide rail 1 has stronger stability.
The part of the second guide rail 1, which is not provided with the first heat insulation layer 4, is coated with the second heat insulation layer, preferably, the second heat insulation layer comprises heat insulation plastic, and the heat insulation plastic is coated on the part of the second guide rail 1, which is not provided with the first heat insulation layer 4. The second heat insulating layer can prevent the hydraulic oil in the oil cavity 5 from contacting the metal body of the second guide rail 1 when the hydraulic oil flows back, so that the thermal expansion deformation of the second guide rail 1 caused by the hydraulic oil flowing back is avoided.
As shown in fig. 2, the oil chambers 5 are symmetrically disposed on both sides of the guide rail one 2. Specifically, an oil cavity 5 is arranged between the lower surface of the middle plate 7 and the upper surface of the first guide rail 2, oil cavities 5 are arranged between the inner surfaces of the side plates 6 on two sides and the two side surfaces of the first guide rail 2, oil cavities 5 are arranged between the upper surfaces of the two transverse plates 3 and the lower surface of the first guide rail 2, and the oil cavities 5 are symmetrically arranged on the upper side, the lower side, the left side and the right side of the first guide rail 2.
When hydraulic oil is input into each oil cavity 5 between the first guide rail 2 and the second guide rail 1, the pressure of the hydraulic oil in the oil cavities 5 at two sides simultaneously acts on the first guide rail 2 in the middle, so that the first guide rail 2 only receives inward pressure at two sides, and the first guide rail 2 cannot receive bending force, and therefore bending resistance of the first guide rail 2 is not needed to be considered.
The first guide rail 2 is made of stone material, preferably, the first guide rail 2 is made of granite or marble or engineering ceramics. The granite or marble or engineering ceramic enables the first guide rail 2 to have the characteristics of low thermal expansion coefficient and low thermal conduction coefficient, and when hydraulic oil is input into each oil cavity 5 between the first guide rail 2 and the second guide rail 1, the first guide rail 2 cannot be influenced by the temperature fluctuation of the hydraulic oil in the oil cavity 5, and the first guide rail 2 is prevented from thermal expansion deformation due to the influence of the temperature fluctuation.
The present patent is not limited to setting the first guide rail 2 as a fixed guide rail, setting the second guide rail 1 as a movable guide rail, and also setting the first guide rail 2 as a movable guide rail, setting the second guide rail 1 as a fixed guide rail, and embedding the first guide rail 2 in the second guide rail 1 and sliding along the second guide rail 1.
The hydrostatic rail capable of inhibiting thermal deformation provided by the invention has been described in detail, and specific examples are set forth herein to illustrate the principles and embodiments of the invention, the above examples being provided only to assist in understanding the invention and its core concepts. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. The hydrostatic guideway capable of inhibiting thermal deformation is characterized by comprising a guideway I and a guideway II, wherein the guideway I is embedded in the guideway II, the guideway I and the guideway II can slide relatively, a plurality of oil cavities are arranged between the guideway I and the guideway II, the guideway II is made of metal materials, the guideway II has toughness, a first heat insulation layer is arranged at the adjacent part of the guideway II and the oil cavity, and the first heat insulation layer is used for separating hydraulic oil input into the oil cavity from a metal body of the guideway II; the first guide rail is made of granite, marble or engineering ceramic; the oil cavities are symmetrically arranged on two sides of the first guide rail; the first heat insulating layer is made of granite, marble or engineering ceramic.
2. The hydrostatic guideway capable of inhibiting thermal deformation according to claim 1, wherein the portion of the guideway II where the first heat insulating layer is not provided is coated with the second heat insulating layer.
3. The hydrostatic rail of claim 1, wherein said rail one is made of a stone material.
4. The hydrostatic rail of claim 2, wherein the thermal insulation layer comprises an insulating plastic.
5. The hydrostatic guideway capable of inhibiting thermal deformation according to claim 1, wherein the guideway two comprises a middle plate and two side plates, the two side plates are respectively connected to two sides of the middle plate, the ends of the two side plates are connected with transverse plates, the middle plate, the side plates and the transverse plates are enclosed to form grooves, the groove openings of the two sides are opposite, and the guideway one is embedded in the grooves of the two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467849.6A CN114043258B (en) | 2021-12-03 | 2021-12-03 | Hydrostatic guideway capable of inhibiting thermal deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467849.6A CN114043258B (en) | 2021-12-03 | 2021-12-03 | Hydrostatic guideway capable of inhibiting thermal deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114043258A CN114043258A (en) | 2022-02-15 |
| CN114043258B true CN114043258B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111467849.6A Active CN114043258B (en) | 2021-12-03 | 2021-12-03 | Hydrostatic guideway capable of inhibiting thermal deformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN114043258B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251035A (en) * | 1986-04-22 | 1987-10-31 | Mitsubishi Heavy Ind Ltd | Thermal deformation preventing foundation block |
| CN101280804A (en) * | 2008-05-09 | 2008-10-08 | 潘旭华 | Static pressure guiding rail with adjustable film thickness and regulating method thereof |
| CN101733644A (en) * | 2008-11-20 | 2010-06-16 | 福建南安三井机械厂有限公司 | Granite machine tool guide rail |
| CN101749247B (en) * | 2008-12-05 | 2014-03-19 | 童夏民 | Totally-enclosed rotor type refrigerating compressor with compression cycle of cold cylinder |
| CN202428260U (en) * | 2011-12-19 | 2012-09-12 | 青岛辉腾机械设备有限公司 | Device for preventing thermal expansion and contraction of ram |
| CN202893834U (en) * | 2012-10-11 | 2013-04-24 | 宝钢特种材料有限公司 | Adjustable guide wheel device with oil cavity |
| CN105508420B (en) * | 2016-01-07 | 2017-11-24 | 燕山大学 | A kind of high pressure self-loopa cools down hydrostatic slideway fulcrum bearing |
| CN208451063U (en) * | 2018-06-08 | 2019-02-01 | 长春希莱光电技术有限公司 | One kind exempting from the board-like hydrostatic slideway of frizing |
| CN110587424A (en) * | 2019-10-23 | 2019-12-20 | 机械科学研究总院海西（福建）分院有限公司 | High-precision hydrostatic guide rail for ultra-precise aspheric surface molding grinding machine |
| CN211449396U (en) * | 2019-12-13 | 2020-09-08 | 广东凯特精密机械有限公司 | Static pressure guide rail device |
| CN213777226U (en) * | 2020-09-28 | 2021-07-23 | 新疆阜康天山水泥有限责任公司 | Device for reducing temperature of mill tile by using high polymer heat insulation plate |
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2021
- 2021-12-03 CN CN202111467849.6A patent/CN114043258B/en active Active
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| CN114043258A (en) | 2022-02-15 |
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Denomination of invention: Liquid static pressure guide rail that can suppress thermal deformation Granted publication date: 20230616 Pledgee: Baiyang Sub Branch of Zhejiang Wuyi Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang Yawei Precision Machine Tool Co.,Ltd. Registration number: Y2024980014185 |