CN201940809U - Hydrostatic guide rail system of machine tool - Google Patents
Hydrostatic guide rail system of machine tool Download PDFInfo
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- CN201940809U CN201940809U CN2010206343568U CN201020634356U CN201940809U CN 201940809 U CN201940809 U CN 201940809U CN 2010206343568 U CN2010206343568 U CN 2010206343568U CN 201020634356 U CN201020634356 U CN 201020634356U CN 201940809 U CN201940809 U CN 201940809U
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- 230000002706 hydrostatic effect Effects 0.000 title claims description 11
- 239000003921 oil Substances 0.000 claims abstract description 152
- 230000003068 static effect Effects 0.000 claims abstract description 26
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 2
- 230000003749 cleanliness Effects 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000000737 periodic effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Machine Tool Units (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
本实用新型涉及一种机床设备，尤其是一种机床静压导轨系统。该系统由独立的导轨和静压块组成，位于上方的静压块为集油块，其中，集油块的中部开有油腔，油腔通过油管接头与螺旋进油管连接，螺旋进油管的内径为3-4mm，集油块上且位于油腔的周边设有环形的油腔槽，油腔槽呈连通封闭状，并与油腔连通，油腔槽上设有对称设置的出油口，出油口分别通过油管接头与螺旋出油管连通，螺旋出油管的直径为0.8-1mm，在环形油腔槽的外侧设有环形的气槽，气槽呈连通封闭状，气槽内有高压气体。其可以消除油压的周期性波动，提高了油垫支撑的刚度和高度，同时防止高压油外泄，减少了环境污染，保证了导轨的清洁，提高了液压油的清洁度。
The utility model relates to a machine tool equipment, in particular to a machine tool static pressure guide rail system. The system is composed of an independent guide rail and a static pressure block. The static pressure block located above is an oil collection block. There is an oil chamber in the middle of the oil collection block. The oil chamber is connected to the spiral oil inlet pipe through the oil pipe joint. The inner diameter is 3-4mm. There is an annular oil chamber groove on the oil collecting block and around the oil chamber. The oil chamber groove is connected and closed, and communicates with the oil chamber. There are symmetrically arranged oil outlets on the oil chamber groove. , the oil outlets are respectively connected to the spiral oil outlet pipe through the oil pipe joint. The diameter of the spiral oil outlet pipe is 0.8-1mm. There is an annular air groove outside the annular oil chamber groove. The air groove is connected and closed, and there is high pressure in the air groove. gas. It can eliminate the periodic fluctuation of oil pressure, improve the rigidity and height of the oil pad support, prevent high-pressure oil leakage, reduce environmental pollution, ensure the cleanliness of the guide rail, and improve the cleanliness of the hydraulic oil.
Description
技术领域technical field
本实用新型涉及一种机床设备，尤其是一种机床静压导轨系统。The utility model relates to a machine tool equipment, in particular to a machine tool static pressure guide rail system.
背景技术Background technique
中大型机床设备为了减少运动部件的摩擦，一般采用液体静压导轨结构。现有的静压导轨按结构形式主要分为开式静压导轨和闭式静压导轨，按供油情况主要分为恒压供油静压导轨和恒流供油静压导轨。无论采用那种静压导轨，其工作原理都是由油泵提供高压油，经电磁阀后进入油腔，利用油的压力使两个接合面保持纯液体摩擦，并保证导轨有良好的运动精度，这就要求具有较高的油膜刚度和高精度的油垫支撑。液体摩擦有着摩擦系数小，机械效率高，长期使用无磨损，工作运动平稳等优点，因此静压技术在机场中得到了广泛的应用。但是经过长期的使用，现有结构的静压导轨系统存在这以下几个方面的缺陷：第一，由于所有静压系统的静压油都是由油泵供给，无论采用何种泵，如叶片泵、柱塞泵、齿轮泵等，都是间歇式供油，存在着油压不稳定的问题，同时也因油路距离、管径等问题造成导轨各处的油压高低不等，油压不稳定以及油压不等都会直接影响机床的精度；第二，油膜厚度不可控；第三，无论是开式静压导轨还是闭式静压导轨，均采用液压油敞开回流，从而造成了环境的污染，同时液压油回流时会被铁屑、灰尘、切削液等污染，大大精度了机床精度，降低了机床的使用寿命。In order to reduce the friction of moving parts, medium and large machine tools generally adopt hydrostatic guide rail structure. The existing static pressure guide rails are mainly divided into open static pressure guide rails and closed static pressure guide rails according to the structural form, and are mainly divided into constant pressure oil supply static pressure guide rails and constant current oil supply static pressure guide rails according to the oil supply situation. No matter what kind of hydrostatic guide rail is used, the working principle is that the oil pump provides high-pressure oil, which enters the oil chamber after passing through the solenoid valve, and uses the pressure of the oil to maintain pure liquid friction on the two joint surfaces, and to ensure good motion accuracy of the guide rail. This requires high oil film stiffness and high-precision oil pad support. Liquid friction has the advantages of small friction coefficient, high mechanical efficiency, long-term use without wear, and stable working movement. Therefore, static pressure technology has been widely used in airports. However, after long-term use, the existing structure of the hydrostatic guide rail system has the following defects: First, since the hydrostatic oil of all hydrostatic systems is supplied by an oil pump, no matter what kind of pump is used, such as a vane pump , plunger pumps, gear pumps, etc., all supply oil intermittently, and there is a problem of unstable oil pressure. At the same time, due to the distance of the oil circuit and the diameter of the pipe, the oil pressure at each part of the guide rail is different, and the oil pressure is not stable. Stability and unequal oil pressure will directly affect the accuracy of the machine tool; second, the thickness of the oil film is uncontrollable; third, whether it is an open hydrostatic guideway or a closed hydrostatic guideway, hydraulic oil is used to open and return, resulting in environmental pollution. At the same time, when the hydraulic oil returns, it will be polluted by iron filings, dust, cutting fluid, etc., which greatly improves the accuracy of the machine tool and reduces the service life of the machine tool.
实用新型内容Utility model content
本实用新型的目的在于提出了一种机床静压导轨系统，该系统可以消除油压的周期性波动，提高了油垫支撑的刚度和高度，同时防止高压油外泄，减少了环境污染，保证了导轨的清洁，提高了液压油的清洁度。The purpose of this utility model is to propose a static pressure guide rail system for machine tools, which can eliminate periodic fluctuations in oil pressure, improve the rigidity and height of oil pad support, prevent high-pressure oil from leaking, reduce environmental pollution, and ensure It improves the cleanliness of the guide rail and improves the cleanliness of the hydraulic oil.
本实用新型是采用以下的技术方案实现的：一种机床静压导轨系统，该系统由独立的导轨和静压块组成，位于上方的静压块为集油块，其中，集油块的中部开有油腔，油腔通过油管接头与螺旋进油管连接，螺旋进油管的内径为3-4mm，集油块上且位于油腔的周边设有环形的油腔槽，油腔槽呈连通封闭状，并与油腔连通，油腔槽上设有对称设置的出油口，出油口分别通过油管接头与螺旋出油管连通，螺旋出油管的直径为0.8-1mm，在环形油腔槽的外侧设有环形的气槽，气槽呈连通封闭状，气槽内有高压气体。The utility model is realized by adopting the following technical solutions: a machine tool static pressure guide rail system, which is composed of an independent guide rail and a static pressure block, and the static pressure block located above is an oil collecting block, wherein the middle part of the oil collecting block There is an oil chamber, which is connected to the spiral oil inlet pipe through the oil pipe joint. The inner diameter of the spiral oil inlet pipe is 3-4mm. There is an annular oil chamber groove on the oil collecting block and located around the oil chamber. The oil chamber groove is connected and closed. Shaped and communicated with the oil chamber, the oil chamber groove is provided with symmetrically arranged oil outlets, and the oil outlets are respectively connected with the spiral oil outlet pipe through the oil pipe joint. An annular air groove is arranged on the outer side, the air groove is connected and closed, and there is high-pressure gas in the air groove.
本实用新型中，所述油腔槽上至少设置两个出油口。In the utility model, at least two oil outlets are arranged on the oil chamber groove.
所述与出油口连通的螺旋出油管分别通过油管接头与连接块连接，连接块通过油管接头与液压油回收装置连接。The spiral oil outlet pipes communicated with the oil outlet are respectively connected to the connection block through the oil pipe joint, and the connection block is connected to the hydraulic oil recovery device through the oil pipe joint.
本实用新型的有益效果是：本实用新型中的进油管和出油管均为内径较小的螺旋油管，通过螺旋状的毛细油管可以增加进油管的管道效应和油路的长度，从而增加油管内液压油的阻尼性，消除因油泵等原因造成的油压的周期性波动，有效地提高了油膜支撑稳定性，提高了油垫支撑的刚度和高精度；同时，高压油在同一油腔内回流，不会产生外泄，减少了环境污染，也提高了液压油的清洁度，保证导轨的清洁；另外，通过设置气槽，在静压油的外围形成了一个高压气体防护墙，既清洁了导轨，又保护了与导轨结合的静压面，防止液压油受到污染，大大提高了机床的精度和使用寿命。The beneficial effects of the utility model are: the oil inlet pipe and the oil outlet pipe in the utility model are both spiral oil pipes with a small inner diameter, and the pipeline effect of the oil inlet pipe and the length of the oil circuit can be increased through the spiral capillary oil pipe, thereby increasing the internal diameter of the oil pipe. The damping property of the hydraulic oil eliminates the periodic fluctuation of the oil pressure caused by the oil pump and other reasons, effectively improves the stability of the oil film support, improves the stiffness and high precision of the oil pad support; at the same time, the high pressure oil flows back in the same oil chamber , will not cause leakage, reduces environmental pollution, improves the cleanliness of the hydraulic oil, and ensures the cleanliness of the guide rail; in addition, by setting the air groove, a high-pressure gas protective wall is formed around the hydrostatic oil, which not only cleans The guide rail also protects the static pressure surface combined with the guide rail, prevents the hydraulic oil from being polluted, and greatly improves the accuracy and service life of the machine tool.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
具体实施方式Detailed ways
下面结合附图对本实用新型做进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.
本实用新型所述的导轨位于上下两个相对运动的工作台之间，如图1所示，该系统由一组独立的导轨和静压块组成，静压块分别与上、下工作台固定连接，其中与位于上方的工作台固定连接的静压块为集油块1，集油块1的中部开有油腔9，油腔9通过油管接头8与进油管连接，油泵出来的高压油经过电磁阀进入进油管，从而为油腔9提供高压油。所述的进油管为螺旋进油管7，螺旋进油管7的内径为1.6-2mm。为由于液压油具有一定的粘性，因此液压油具有一定的阻尼性，而螺旋进油管7可以增加进油管的管道效应和油路的长度，从而有效地提高了进油管内液压油的阻尼，稳定了从螺旋进油管7中流出并进入油腔9内的液压油的油压。The guide rail described in the utility model is located between two upper and lower relatively moving worktables, as shown in Figure 1, the system is composed of a group of independent guide rails and static pressure blocks, and the static pressure blocks are respectively fixed to the upper and lower workbenches. The static pressure block fixedly connected with the workbench above is the oil collecting block 1, and the middle part of the oil collecting block 1 has an oil chamber 9, and the oil chamber 9 is connected to the oil inlet pipe through the oil pipe joint 8, and the high-pressure oil from the oil pump It enters the oil inlet pipe through the solenoid valve to provide high-pressure oil for the oil chamber 9. Described oil inlet pipe is spiral oil inlet pipe 7, and the internal diameter of spiral oil inlet pipe 7 is 1.6-2mm. Because the hydraulic oil has a certain viscosity, the hydraulic oil has a certain damping property, and the spiral oil inlet pipe 7 can increase the pipeline effect of the oil inlet pipe and the length of the oil path, thereby effectively improving the damping of the hydraulic oil in the oil inlet pipe, and stabilizing The oil pressure of the hydraulic oil flowing out from the spiral oil inlet pipe 7 and entering the oil chamber 9 is controlled.
在集油块1上且位于油腔9的周边上设有环形的油腔槽10即回油槽，油腔槽10呈连通封闭状，油腔槽10上设有四个出油口，四个出油口呈对称设置，同时四个出油口分别通过油管接头2与出油管连通。与进油管相同，出油管为螺旋出油管3，以增加出油阻尼，螺旋出油管3的直径为0.8-1mm。液压油流入油腔9，并通过与油腔9连通的油腔槽10流出，使液压油在油腔9内形成封闭的循环油路，减少了环境污染，也提高了液压油的清洁度；同时，经过螺旋进油管7和螺旋出油管3的调整，在液压油不会出现外泄的同时，使油腔内液压油的油压非常稳定，提高了机床精度。从油腔槽10内流出的液压油经过螺旋油管后分别通过油管接头4流入同一连接块5中，然后通过油管接头排出，从而对液压油进行回收。On the oil collecting block 1 and on the periphery of the oil chamber 9, there is an annular oil chamber groove 10, that is, an oil return groove. The oil chamber groove 10 is connected and closed, and the oil chamber groove 10 is provided with four oil outlets. The oil outlets are arranged symmetrically, and the four oil outlets communicate with the oil outlet pipes through the oil pipe joints 2 respectively. Same as the oil inlet pipe, the oil outlet pipe is a spiral
在环形油腔槽10的外侧设有环形的气槽11，气槽11呈连通封闭状，气槽11与气管12连通，高压气体通过气管12进入气槽11内，由于气体的流动性好，因此高压气体可以沿着由静压油膜形成的导轨以及上、下静压块之间的间隙流动，使该静压系统内除了有静压油膜外，还形成了一个由高压气体形成的气幕，将导轨上附着的铁屑、灰尘及其它杂物吹走，有效地净化导轨表面，从而保护了导轨以及与导轨结合的静压面，提高了导轨的精度和使用寿命，并防止液压油受到污染。An
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206343568U CN201940809U (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206343568U CN201940809U (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
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| CN201940809U true CN201940809U (en) | 2011-08-24 |
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| CN2010206343568U Expired - Lifetime CN201940809U (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039526A (en) * | 2010-12-01 | 2011-05-04 | 泰达重工机械（青岛）有限公司 | Static pressure guide rail system for machine tool |
| CN106271684A (en) * | 2016-09-14 | 2017-01-04 | 燕山大学 | A kind of magnetic liquid dual suspension support rails system |
| CN107336080A (en) * | 2017-07-14 | 2017-11-10 | 中国第汽车股份有限公司 | A kind of constant pressure hard rail system using gas-liquid two-phase annular flow effect |
-
2010
- 2010-12-01 CN CN2010206343568U patent/CN201940809U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039526A (en) * | 2010-12-01 | 2011-05-04 | 泰达重工机械（青岛）有限公司 | Static pressure guide rail system for machine tool |
| CN102039526B (en) * | 2010-12-01 | 2016-03-02 | 泰达重工机械（青岛）有限公司 | Hydrostatic guide rail system of machine tool |
| CN106271684A (en) * | 2016-09-14 | 2017-01-04 | 燕山大学 | A kind of magnetic liquid dual suspension support rails system |
| CN107336080A (en) * | 2017-07-14 | 2017-11-10 | 中国第汽车股份有限公司 | A kind of constant pressure hard rail system using gas-liquid two-phase annular flow effect |
| CN107336080B (en) * | 2017-07-14 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of constant pressure hard rail system using gas-liquid two-phase annular flow effect |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20160302 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20160302 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |