CN107882778A - A kind of ultra-precision machine tool oil supply system with emergent supply capability - Google Patents
A kind of ultra-precision machine tool oil supply system with emergent supply capability Download PDFInfo
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- CN107882778A CN107882778A CN201711141909.9A CN201711141909A CN107882778A CN 107882778 A CN107882778 A CN 107882778A CN 201711141909 A CN201711141909 A CN 201711141909A CN 107882778 A CN107882778 A CN 107882778A
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- Prior art keywords
- oil
- machine tool
- emergent
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention belongs to ultra-precision machine tool oil sources provisioning technique, is related to a kind of ultra-precision machine tool oil supply system with emergent supply capability.It is characterized in that：By an emergent oil circuit being made up of meet an urgent need accumulator (12) and isolation check valve (13).The present invention proposes a kind of ultra-precision machine tool oil supply system with emergent supply capability, when there is the situation of accident power-off or pumping source damage, emergent oil sources can be provided to machine tool static-pressure bearing 9, certain operating pressure is maintained in short time, it ensure that the working oil membrane in hydrostatic bearing kinematic pair, the destruction of hydrostatic bearing motion submember is avoided, improves the reliability of ultra-precision machine tool oil supply system.
Description
Technical field
The invention belongs to ultra-precision machine tool oil sources designing technique, is related to a kind of ultra-precision machine tool with emergent supply capability
Oil supply system.
Background technology
Because hydrodynamic journal liquid polymers and hydrostatic slideway have the characteristics of bearing capacity is big, precision is high, working stability etc., because
This is passed through frequently with liquid static-pressure support mode when ultra-precision machine tool designs.During Ultra-precision Turning, except by lathe
Itself caused excitation vibrations of outside basis vibrations and lathe motion itself that base imports are outer, the oil sources pressure of hydraulic system
On power pulsation also can be by relying on the work of hydrostatic support principle hydrostatic spindle and hydrostatic slideway in hydraulic system transfers to lathe,
Cause the moving component of hydrostatic spindle and hydrostatic slideway to produce micro breadth oscillation, influence the motion essence of hydrostatic spindle and hydrostatic slideway
Degree, the final performance and machining accuracy for influenceing lathe.
Referring to Fig. 1, it includes crude oil filter 1, accurate constant pressure variable displacement pump 2, overflow a kind of current ultra-precision machine tool oil supply system
Flow valve 3, essential oil filter 4, differential pressure transmitter device 5, check valve 6, pressure gauge 7, accumulator 8, machine tool static-pressure bearing 9 and fuel tank 10；Crude oil
The oil inlet of filter 1 is immersed in below the liquid level of fuel tank 10, and the oil-out of crude oil filter 1 connects with the oil inlet of accurate constant pressure variable displacement pump 2
Logical, the oil-out of accurate constant pressure variable displacement pump 2 connects with the oil inlet of essential oil filter 4 and the oil inlet of overflow valve 3 respectively, overflow valve 3
Oil-out connected with fuel tank, essential oil filter 4 oil-out connected with the oil inlet of check valve 6, two pressure-sensitive of differential pressure transmitter device 5
Mouth connects with the oil inlet and oil-out of essential oil filter 4 respectively, the oil-out pressure-sensitive mouth with pressure gauge 7, the accumulation of energy respectively of check valve 6
The oil inlet connection of the oil inlet and outlet and machine tool static-pressure bearing 9 of device 8, the oil-out of machine tool static-pressure bearing 9 pass through pipeline and fuel tank
10 connections.Its operation principle is：Oil sources pump is entered hydraulic system by precision constant pressure variable displacement pump 2 from fuel tank 10 during work, and overflow valve 3 is used
In limitation hydraulic system inlet pressure, hydraulic oil is by essential oil filter 4, and the grade of check valve 6 enters machine tool static-pressure bearing 9, and accumulator 8 is used
In stabilizing system pressure oscillation, hydraulic oil is by the backflow oil-feed tank 10 of machine tool static-pressure bearing 9.Its shortcoming is：In ultra-precision machine tool
In process, in fact it could happen that accident power-off or the situation of pumping source damage, the pumping source for causing hydraulic system can not be provided normally
Operating pressure, destroy hydrostatic bearing kinematic pair in working oil membrane, cause hydrostatic bearing motion submember destruction, make superfinishing
The reliability decrease of close lathe oil supply system.
The content of the invention
The purpose of the present invention is：A kind of ultra-precision machine tool oil supply system with emergent supply capability is proposed, to work as
During the situation of existing accident power-off or pumping source damage, emergent oil sources is provided to machine tool static-pressure bearing 9, certain work is maintained in the short time
Make pressure, ensure the working oil membrane in hydrostatic bearing kinematic pair, avoid the destruction of hydrostatic bearing motion submember, improve ultraprecise
The reliability of lathe oil supply system.
The technical scheme is that：A kind of ultra-precision machine tool oil supply system with emergent supply capability, including crude oil
Filter 1, accurate constant pressure variable displacement pump 2, overflow valve 3, essential oil filter 4, differential pressure transmitter device 5, check valve 6, pressure gauge 7, accumulator 8, lathe
Hydrostatic bearing 9 and fuel tank 10；The oil inlet of crude oil filter 1 is immersed in below the liquid level of fuel tank 10, oil-out and the precision of crude oil filter 1
The oil inlet connection of constant pressure variable displacement pump 2, the oil-out of accurate constant pressure variable displacement pump 2 filter 4 oil inlet and overflow valve 3 with essential oil respectively
Oil inlet connection, the oil-out of overflow valve 3 connects with fuel tank, and the oil-out that essential oil filters 4 connects with the oil inlet of check valve 6,
Two pressure-sensitive mouths of differential pressure transmitter device 5 connect with the oil inlet and oil-out of essential oil filter 4 respectively, the oil-out difference of check valve 6
Connected with the pressure-sensitive mouth of pressure gauge 7 and the oil inlet and outlet of accumulator 8, the oil-out of machine tool static-pressure bearing 9 passes through pipeline and fuel tank
10 connections；It is characterized in that：By an emergent oil circuit being made up of meet an urgent need accumulator 12 and isolation check valve 13；Check valve 6
Oil-out also connects with isolating the oil inlet of check valve 13, and the oil-out for isolating check valve 13 enters with emergent accumulator 12 respectively
Oil-out connects with the oil inlet of machine tool static-pressure bearing 9.
It is an advantage of the invention that：A kind of ultra-precision machine tool oil supply system with emergent supply capability is proposed, works as appearance
When accident power-off or the situation of pumping source damage, machine tool static-pressure bearing 9 can be given to provide emergent oil sources, certain work is maintained in the short time
Make pressure, ensure that the working oil membrane in hydrostatic bearing kinematic pair, avoid the destruction of hydrostatic bearing motion submember, improve
The reliability of ultra-precision machine tool oil supply system.
Brief description of the drawings
Fig. 1 is a kind of structural principle block diagram of current ultra-precision machine tool oil supply system.
Fig. 2 is the structural principle block diagram of the present invention.
Embodiment
The present invention is described in further details below.Referring to Fig. 2, a kind of ultra-precision machine tool with emergent supply capability
Oil supply system, including crude oil filter 1, accurate constant pressure variable displacement pump 2, overflow valve 3, essential oil filter 4, differential pressure transmitter device 5, check valve 6, pressure
Table 7, accumulator 8, machine tool static-pressure bearing 9 and fuel tank 10；The oil inlet of crude oil filter 1 is immersed in below the liquid level of fuel tank 10, crude oil
The oil-out of filter 1 connects with the oil inlet of accurate constant pressure variable displacement pump 2, and the oil-out of accurate constant pressure variable displacement pump 2 filters 4 with essential oil respectively
Oil inlet connected with the oil inlet of overflow valve 3, the oil-out of overflow valve 3 connects with fuel tank, the oil-out of essential oil filter 4 with it is unidirectional
The oil inlet connection of valve 6, two pressure-sensitive mouths of differential pressure transmitter device 5 connect with the oil inlet and oil-out of essential oil filter 4 respectively, unidirectionally
The oil-out of valve 6 connects with the pressure-sensitive mouth of pressure gauge 7 and the oil inlet and outlet of accumulator 8 respectively, the oil-out of machine tool static-pressure bearing 9
Connected by pipeline with fuel tank 10；It is characterized in that：Met an urgent need by one by accumulator 12 of meeting an urgent need with what isolation check valve 13 formed
Oil circuit；The oil-out of check valve 6 also connects with isolating the oil inlet of check valve 13, isolates the oil-out of check valve 13 respectively with answering
The oil inlet and outlet of anxious accumulator 12 connects with the oil inlet of machine tool static-pressure bearing 9.
The original volume of described emergent accumulator 12 is 20L~50L, the blowing pressure 7kgf/cm2~10kgf/cm2。
The present invention operation principle be：
Fluid enters accumulator 8 by accurate constant pressure variable displacement pump 2 and related Hydraulic Elements, then passes through the He of accumulator 12 of meeting an urgent need
Isolate check valve 13, into machine tool static-pressure bearing 9.When there is the situation of accident power-off or pumping source damage, by accumulator of meeting an urgent need
12 work immediately with the emergent oil circuits for isolating the composition of check valve 13, give machine tool static-pressure bearing 9 to provide emergent oil sources, short time interior dimension
Certain operating pressure is held, allows operator to have the enough reaction time, to take the necessary measures, avoids causing system mechanics to break
It is bad.
One embodiment of the present of invention, used crude oil filter, the filter of accurate constant pressure variable displacement pump, overflow valve, essential oil, pressure difference hair
It is finished parts to interrogate device, check valve, pressure gauge, accumulator.The original volume of emergent accumulator 12 is 30L, and the blowing pressure is
8kgf/cm2.When lathe accident power-off, by using the emergent accumulator 12 in invention shown in Fig. 2 and 13 groups of check valve of isolation
Into emergent oil circuit, provide reaction time of about 5 minutes to operator, smoothly completing it, safety such as lathe shutdown are emergent to arrange
Apply, avoid lathe damage.
Claims (2)
1. a kind of ultra-precision machine tool oil supply system with emergent supply capability, including crude oil filter (1), accurate constant pressure variable displacement pump
(2), overflow valve (3), essential oil filter (4), differential pressure transmitter device (5), check valve (6), pressure gauge (7), accumulator (8), machine tool static-pressure
Bearing (9) and fuel tank (10)；The oil inlet of crude oil filter (1) is immersed in below the liquid level of fuel tank (10), the oil-out of crude oil filter (1)
Connected with the oil inlet of accurate constant pressure variable displacement pump (2), the oil-out of accurate constant pressure variable displacement pump (2) filters entering for (4) with essential oil respectively
Hydraulic fluid port connects with the oil inlet of overflow valve (3), and the oil-out of overflow valve (3) connects with fuel tank, the oil-out and list of essential oil filter (4)
Connected to the oil inlet of valve (6), two pressure-sensitive mouths of differential pressure transmitter device (5) filter the oil inlet and oil-out of (4) with essential oil respectively
Connection, the oil-out of check valve (6) connect with the pressure-sensitive mouth of pressure gauge (7) and the oil inlet and outlet of accumulator (8) respectively, and lathe is quiet
The oil-out that last item holds (9) is connected by pipeline with fuel tank (10)；It is characterized in that：Have one by emergent accumulator (12) and every
From the emergent oil circuit of check valve (13) composition；The oil-out of check valve (6) also connects with isolating the oil inlet of check valve (13), every
Oil-out from check valve (13) connects with the oil inlet and outlet of emergent accumulator (12) and the oil inlet of machine tool static-pressure bearing (9) respectively
It is logical.
2. the ultra-precision machine tool oil supply system with emergent supply capability according to claim 1, it is characterised in that：It is described
Emergent accumulator (12) original volume be 20L~50L, the blowing pressure 7kgf/cm2~10kgf/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141909.9A CN107882778A (en) | 2017-11-16 | 2017-11-16 | A kind of ultra-precision machine tool oil supply system with emergent supply capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141909.9A CN107882778A (en) | 2017-11-16 | 2017-11-16 | A kind of ultra-precision machine tool oil supply system with emergent supply capability |
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| Publication Number | Publication Date |
|---|---|
| CN107882778A true CN107882778A (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711141909.9A Pending CN107882778A (en) | 2017-11-16 | 2017-11-16 | A kind of ultra-precision machine tool oil supply system with emergent supply capability |
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| CN (1) | CN107882778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202790A (en) * | 2021-06-16 | 2021-08-03 | 南京拓和机电科技有限公司 | Centrifugal compressor |
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2017
- 2017-11-16 CN CN201711141909.9A patent/CN107882778A/en active Pending
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| CN101695764A (en) * | 2009-10-26 | 2010-04-21 | 浙江大学 | Clamping force multi-stage regulating device of hydraulic power chuck with hydraulic lock |
| CN202934146U (en) * | 2012-07-04 | 2013-05-15 | 大连优创液压设备有限公司 | Energy accumulator type vertical lathe bench power failure protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202790A (en) * | 2021-06-16 | 2021-08-03 | 南京拓和机电科技有限公司 | Centrifugal compressor |
| CN113202790B (en) * | 2021-06-16 | 2022-01-07 | 南京拓和机电科技有限公司 | Centrifugal compressor |
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Application publication date: 20180406 |