CN201833182U - Variable constant-current static-pressure guide rail - Google Patents
Variable constant-current static-pressure guide rail Download PDFInfo
- Publication number
- CN201833182U CN201833182U CN2010205715826U CN201020571582U CN201833182U CN 201833182 U CN201833182 U CN 201833182U CN 2010205715826 U CN2010205715826 U CN 2010205715826U CN 201020571582 U CN201020571582 U CN 201020571582U CN 201833182 U CN201833182 U CN 201833182U
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- CN
- China
- Prior art keywords
- constant current
- static
- fueller
- hydrostatic slideway
- guide rail
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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 - Lifetime
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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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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model belongs to a variable constant-current static-pressure guide rail, which is particularly applicable to a small hydrostatic guide rail requiring a larger bearing-capacity variation range and variable static-pressure floating quantity and mainly comprises a static-pressure mechanism, an oil-path monitoring system and an oil-path control system. The static-pressure mechanism comprises assemblies, such as a static-pressure guide rail plate, a constant-current oil supply device and the like, performs the function of the constant-current static-pressure guide rail and ensures the consistent flow of each outlet point; the oil-path monitoring system comprises a pressure sensor and a flow sensor and performs the actions of monitoring the pressure and the flow of a static-pressure cavity; and the oil-path control system mainly comprises assemblies, such as a variable-frequency motor, a PLC (Programmable Logic Controller) and the like and achieves the purposes of controlling the flow of the static-pressure guide rail and balancing the floating quantity of the static-pressure guide rail by processing the feedback signal of the oil-path monitoring system and controlling the startup and the magnitude of the rotating speed of the variable-frequency motor through the PLC.
Description
Affiliated field:
The utility model is to belong to the constant current hydrostatic slideway, is particularly useful for the constant current hydrostatic slideway mechanism of superduty NC rotary table institute adapted.
Background technology:
Hydrostatic slideway is widely used on the Digit Control Machine Tool owing to have advantages such as frictional resistance is little, long service life, velocity interval is wide, resistance to shock good, kinematic accuracy is high, adaptation is good.
Hydrostatic slideway divides two kinds of constant current hydrostatic slideway and constant voltage hydrostatic slideways again, the oil film rigidity of constant current static pressure is than the oil film rigidity height of constant voltage static pressure, say in theory: the oil film rigidity of hydrostatic slideway becomes the variation relation of 3 powers with oil clearance, the load variations of workbench can cause the variation of oil clearance, thereby change oil film rigidity, in a sizable load range, the buoyance lift amount variable quantity of constant current static pressure is very little, oil film thickness remains unchanged basically, so the guide rail of workbench generally all adopts the constant current hydrostatic slideway.
Along with modern machine develops towards the super large-scale direction, the required load capacity of workbench also requires increasing, the superduty workbench has reached more than 2 times at the pressure difference value between unloaded and fully loaded, the buoyance lift amount of constant current hydrostatic slideway when little load of this moment is 1.25 times of buoyance lift amount of full load, it is big that oil clearance becomes, oil film rigidity diminishes, and can produce certain influence to the processing of workpiece.
Summary of the invention:
The utility model main purpose is at deficiency of the prior art, designs a kind of type variable constant current fueller that is applicable to that superduty workbench constant current hydrostatic slideway uses: make it be satisfied little fuel delivery when little load; Big fuel delivery when big load.
The said type variable constant current of the utility model hydrostatic slideway mainly contains three parts such as static pressure mechanism, oil circuit monitoring system and oil path control system and forms.Static pressure mechanism is made up of constant current fueller and hydrostatic slideway plate; Form open type constant current hydrostatic slideway between hydrostatic slideway plate and the guide rail, be provided with the static pressure chamber in the hydrostatic slideway plate; Link by the constant current fueller of variable-frequency motor driving and the static pressure chamber of hydrostatic slideway plate; The oil circuit monitoring system mainly is made up of the flow sensor that is installed in constant current hydrostatic slideway front, pressure sensor, mainly plays the pressure of monitoring outlet, the effect of flow; Oil path control system mainly is made up of the variable-frequency motor and the PLC (programmable logic controller (PLC)) that drive the constant current fueller.Constant current fueller by the variable-frequency motor driving, link by the mode in a pump one chamber and the static pressure chamber of each hydrostatic slideway plate, hydraulic oil is assigned in each static pressure chamber uniformly by the constant current fueller, guarantees that the flow of the static pressure oil in each static pressure chamber is all identical.Each outlet at the constant current fueller is provided with pressure sensor and flow sensor.Variable-frequency motor, pressure sensor and flow sensor all link with PLC.
Because the said type variable constant current of the utility model hydrostatic slideway, the constant current fueller design of adopting variable-frequency motor to drive, and monitor and manage by the mode in a pump one chamber, utilize PLC that real-time export situation is judged, handle and feedback by signal, operating mode to constant current fueller, outlet pressure, variable-frequency motor etc. is carried out suitable control, is complementary with flow and the load that guarantees outlet.
Description of drawings:
Accompanying drawing 1: type variable constant current hydrostatic slideway fueller principle schematic;
Accompanying drawing 2: type variable constant current hydrostatic slideway cutaway view.
The specific embodiment:
Accompanying drawing 2 is partial enlarged drawings of I part in the accompanying drawing 1, is the cutaway view of the said type variable constant current of the utility model hydrostatic slideway part.Form hydrostatic slideway between hydrostatic slideway plate 5 and the guide rail 6, be provided with static pressure chamber 7 in the hydrostatic slideway plate 5; Variable-frequency motor 2 is connected with constant current fueller 1 and drives constant current fueller 1, constant current fueller 1 is connected on the static pressure chamber 7 in each hydrostatic slideway by the mode in a pump one chamber, variable-frequency motor travels at the uniform speed by the speed of appointment during beginning, hydraulic oil is assigned in each static pressure chamber uniformly by the constant current fueller, forms the constant current open type static pressure guide rail.
Accompanying drawing 1 is the said type variable constant current of a utility model hydrostatic slideway principle schematic.The outlet of hydraulic oil by the constant current fueller be outwards output uniformly, is equipped with pressure sensor 3 and flow sensor 4 in each outlet of constant current fueller 1, and flow sensor 4 is connected with static pressure chamber 7.Variable-frequency motor 2, pressure sensor 3 and flow sensor 4 all link with PLC.
The effect of flow sensor is the rate of discharge that detects the constant current fueller, and guaranteeing has sufficient static pressure oil on the guide rail, and the monitoring variable-frequency motor whether as requested rotating speed carry out work, whole oil circuit is shielded; Pressure sensor then detects the pressure in the static pressure oil pocket in real time, for PLC current loading condition is judged.When this device operation, the PLC program reads the pressure signal judgement pressure size that each pressure sensor is passed back earlier, when pressure hour, show that load capacity is little, the buoyance lift amount of system is big, needs low discharge, this moment is by PLC stop part constant current fueller, reduce the area in total static pressure chamber, increase the oil pressure in the static pressure chamber, reduce the buoyance lift amount of whole system; When pressure is big, show the big flow of needs, PLC program directs variable-frequency motor runs up, and constant current fueller rotating speed improves rate of discharge and increases, and the flow in the static pressure chamber increases, and guarantees that whole system has enough buoyance lift amounts.By the control to variable-frequency motor, the buoyance lift amount that makes whole system is in the excursion of regulation, to satisfy the processing request of high precision machine tool.
The double dot dash line frame table on the right shows in the accompanying drawing 1, in figure the drawn multi-head pump, and can also be according to the more constant current fueller of increase in demand group.
In addition, said constant current fueller both can be a multi-head pump in the utility model; It also can be multiple spot gear separator; It can also be the identical gear pump group of discharge capacity; Or the form that combines by various gasoline economizers.
Claims (6)
1. type variable constant current hydrostatic slideway, form by static pressure mechanism, oil circuit monitoring system, oil path control system three parts, it is characterized in that, static pressure mechanism is made up of constant current fueller and hydrostatic slideway plate, form hydrostatic slideway between hydrostatic slideway plate and the guide rail, be provided with the static pressure chamber in the hydrostatic slideway; Link by the constant current fueller of variable-frequency motor driving and the static pressure chamber of hydrostatic slideway; The oil circuit monitoring system is made up of the flow sensor that is installed in front, static pressure chamber, pressure sensor, is provided with pressure sensor and flow sensor in each outlet of constant current fueller; Oil path control system is made up of variable-frequency motor and the PLC that the constant current fueller carries, and promptly variable-frequency motor, pressure sensor and flow sensor all link with PLC.
2. according to the said type variable constant current of claim 1 hydrostatic slideway, it is characterized in that, said constant current fueller is connected on the static pressure chamber of each hydrostatic slideway according to the mode in a pump one chamber, and hydraulic oil is assigned in each static pressure chamber by the constant current fueller, forms the constant current open type static pressure guide rail.
3. according to the said type variable constant current of claim 1 hydrostatic slideway, it is characterized in that said constant current fueller is a multi-head pump.
4. according to the said type variable constant current of claim 1 hydrostatic slideway, it is characterized in that said constant current fueller is a multiple spot gear separator.
5. according to the said type variable constant current of claim 1 hydrostatic slideway, it is characterized in that said constant current fueller is the identical gear pump group of discharge capacity.
6. according to the said type variable constant current of claim 1 hydrostatic slideway, it is characterized in that said constant current fueller is combined by gasoline economizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205715826U CN201833182U (en) | 2010-10-19 | 2010-10-19 | Variable constant-current static-pressure guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205715826U CN201833182U (en) | 2010-10-19 | 2010-10-19 | Variable constant-current static-pressure guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201833182U true CN201833182U (en) | 2011-05-18 |
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ID=44003278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205715826U Expired - Lifetime CN201833182U (en) | 2010-10-19 | 2010-10-19 | Variable constant-current static-pressure guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201833182U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009353A (en) * | 2010-10-19 | 2011-04-13 | 武汉重型机床集团有限公司 | Variable constant-current static pressure guide rail and control method |
| CN102490077A (en) * | 2011-12-06 | 2012-06-13 | 厦门大学 | Vertical closed hydrostatic guideway perpendicularity error adjustment device |
| CN102975031A (en) * | 2012-11-05 | 2013-03-20 | 武汉重型机床集团有限公司 | Self-adoption multi-oil chamber constant static pressure system with big flow variation range |
-
2010
- 2010-10-19 CN CN2010205715826U patent/CN201833182U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009353A (en) * | 2010-10-19 | 2011-04-13 | 武汉重型机床集团有限公司 | Variable constant-current static pressure guide rail and control method |
| CN102490077A (en) * | 2011-12-06 | 2012-06-13 | 厦门大学 | Vertical closed hydrostatic guideway perpendicularity error adjustment device |
| CN102975031A (en) * | 2012-11-05 | 2013-03-20 | 武汉重型机床集团有限公司 | Self-adoption multi-oil chamber constant static pressure system with big flow variation range |
| CN102975031B (en) * | 2012-11-05 | 2015-05-20 | 武汉重型机床集团有限公司 | Self-adoption multi-oil chamber constant static pressure system with big flow variation range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20120201 |