CN202910578U - Self-adaptive type constant-flow static pressure guide rail - Google Patents
Self-adaptive type constant-flow static pressure guide rail Download PDFInfo
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- CN202910578U CN202910578U CN 201220467928 CN201220467928U CN202910578U CN 202910578 U CN202910578 U CN 202910578U CN 201220467928 CN201220467928 CN 201220467928 CN 201220467928 U CN201220467928 U CN 201220467928U CN 202910578 U CN202910578 U CN 202910578U
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- guide rail
- static pressure
- fueller
- static
- constant current
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Abstract
The utility model belongs to a self-adaptive type constant-flow static pressure guide rail and particularly provides a static pressure guide rail with large bearing change range and small in static pressure buoyancy amount change. The self-adaptive type constant-flow static pressure guide rail mainly consists of a static pressure mechanism, a guide rail monitoring system, an oil way control system and the like. The static pressure mechanism comprises a flat ring guide rail, a constant-flow oil supply device and other assemblies. Flows of outlet points are ensured to be consistent. The guide rail monitoring system comprises an oil film thickness monitor, a guide rail temperature monitor, a pressure sensor and a flow sensor and monitors oil film thickness, temperature and pressure and flows of a static pressure cavity. The oil way control system mainly comprises a variable pump, a programmable logic controller (PLC) and other assemblies. A signal fed back by the oil way control system is processed, and the PLC controls output flows of the variable pump, so that the flows of the static pressure guide rail are controlled, and the purpose of balancing the buoyancy amount of the static pressure guide rail is achieved.
Description
Affiliated field:
The utility model is to belong to constant-current static-pressure guide rail, is particularly useful for the constant-current static-pressure guide rail mechanism of superduty rotary table institute adapted.
Background technology:
Hydrostatic slideway is widely used on the heavy machine tool owing to have the 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 again two kinds of constant-current static-pressure guide rail and constant voltage hydrostatic slideways, the oil film rigidity of constant flow static pressure is higher than the oil film rigidity of constant voltage static pressure, say in theory: the oil film rigidity of hydrostatic slideway becomes the variation relation of 3 powers with oil film thickness, 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 flow static pressure is very little, oil film thickness remains unchanged basically, so the guide rail of workbench generally all adopts constant-current static-pressure guide rail.
Along with modern machine towards the super large-scale future development, 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 static-pressure guide rail when little load of this moment is 1.25 times of buoyance lift amount of full load, oil clearance changes increasing, cause that oil film rigidity changes, can produce certain impact to the processing of workpiece.
Summary of the invention:
The utility model main purpose is for deficiency of the prior art, design a kind of self-adapting type constant current fueller that superduty workbench constant-current static-pressure guide rail uses that is applicable to: make it be satisfied little fuel delivery when little load, large fuel delivery when large load remains that oil film is certain value or within the specific limits.
The said self-adapting type constant-current static-pressure guide rail of the utility model mainly contains three parts such as static pressure mechanism, oil circuit monitoring system and oil path control system and forms.Static pressure mechanism is comprised of constant current fueller and hydrostatic slideway plate; Form the enclosed constant-current static-pressure guide rail between hydrostatic slideway plate and the guide rail, be provided with the static pressure chamber in the hydrostatic slideway plate; Linked by the constant current fueller of variable pump driving and the static pressure chamber of hydrostatic slideway plate; The oil circuit monitoring system is mainly by the microspur displacement transducer, the temperature sensor that are installed in the static pressure chamber, and form at pressure sensor, the flow sensor that the outlet of constant current fueller arranges, mainly play the effect of monitoring controlling thickness of guide rail oil membrane, temperature, pressure, flow; Oil path control system mainly is comprised of the variable pump and the PLC (programmable logic controller (PLC)) that drive the constant current fueller.Constant current fueller by variable pump drives links by the mode in a pump one chamber and the static pressure chamber of each hydrostatic slideway plate, and hydraulic oil is assigned in each static pressure chamber equably by the constant current fueller, guarantees that the flow of the static pressure oil in each static pressure chamber is identical.Outlet at the constant current fueller is provided with pressure sensor and flow sensor.Variable pump, temperature sensor, pressure sensor, flow sensor and microspur displacement transducer all link with PLC.
Because the said self-adapting type constant-current static-pressure guide rail of the utility model; adopt the constant current fueller design of variable pump; and monitor and manage by the mode in a pump one chamber; by the microspur displacement transducer; temperature sensor; pressure sensor; the information that flow sensor detects; utilize PLC that real-time guide rail oil film situation is judged; process and feedback by signal; operating mode to the variable pump of constant current fueller is carried out suitable control; be complementary with flow and the load that guarantees outlet; play the purpose of balance hydrostatic slideway buoyance lift amount, Protection platform guide rail.
Description of drawings:
Accompanying drawing 1: self-adapting type constant-current static-pressure guide rail fueller principle schematic;
Accompanying drawing 2: self-adapting type constant-current static-pressure guide rail cutaway view.
The specific embodiment:
Accompanying drawing 1 is the said self-adapting type constant-current static-pressure guide rail of the utility model principle schematic.The outlet of hydraulic oil by the constant current fueller be outwards output equably, is provided with pressure sensor 3 and flow sensor 4 in one of them outlet of constant current fueller 1, and flow sensor 4 is connected with static pressure chamber 7.Variable pump 2, pressure sensor 3, temperature sensor 6, microspur displacement transducer 5 and flow sensor 4 all link with PLC.
The effect of flow sensor is the rate of discharge that detects the constant current fueller, prevents the unexpected obstruction of oil feeding line, guarantees to have on the guide rail sufficient static pressure oil, and hydrostatic slideway is shielded; Temperature sensor provides the real time temperature value of guide rail, the real-time viscosity number of static pressure oil can be judged according to this temperature value by system, the accurate control that reaches static pressure oil provides reference, can set the alarm temperature value simultaneously and carry out hydrostatic slideway is protected, and prevents that guide rail from meeting accident hard friction and grinding wound; Pressure sensor then detects the pressure in the static-pressure oil chamber in real time, prevents the unexpected decompression of oil feeding line (damaged such as pipeline), and hydrostatic slideway is shielded; The microspur displacement transducer detects the one-tenth-value thickness 1/10 of oil film between hydrostatic slideway in real time, (this value can be certain value to offer PLC and setting value, also can be a scope) compare, thereby determine the size of fuel delivery, when the one-tenth-value thickness 1/10 that records is larger than setting value, show that fuel delivery is bigger than normal, reduce fuel delivery, otherwise will strengthen fuel delivery.More than the various monitoring means purpose of obtaining data be, control system is reached hydrostatic slideway is carried out purpose quicker, safer, more accurate, more stably Self Adaptive Control.Data setting and monitoring in the said self-adapting type constant-current static-pressure guide rail of the utility model device can realize by the computer PC and the monitor 10 that are connected with PLC.
Empty wire frame representation in the accompanying drawing 1, in figure the drawn multiple spot gear separator, can also be according to the more constant current fueller of increase in demand group.Accompanying drawing 2 is the schematic diagram of the said self-adapting type constant-current static-pressure guide rail part of the utility model.Form hydrostatic slideway between hydrostatic slideway plate 8 and the guide rail 9, be provided with static pressure chamber 7 in the hydrostatic slideway plate 8.
In addition, said constant current fueller 1 both can be multi-head pump in the utility model, also can be multiple spot gear separator, can also be the identical gear pump group of discharge capacity, or the form that is combined by various gasoline economizers.
Claims (3)
1. self-adapting type constant-current static-pressure guide rail, formed by static pressure mechanism, oil circuit monitoring system, oil path control system three parts, it is characterized in that, static pressure mechanism is comprised 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; Linked by the constant current fueller of variable pump driving and the static pressure chamber of hydrostatic slideway; The oil circuit monitoring system is by the microspur displacement transducer, the temperature sensor that are installed in the static pressure chamber, and the pressure sensor and the flow sensor that arrange in the outlet of constant current fueller form; Oil path control system is comprised of variable pump and the PLC that the constant current fueller carries, and namely variable pump, microspur displacement transducer and flow sensor all link with PLC.
2. according to the said self-adapting type constant-current static-pressure guide rail of claim 1, 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 closed hydrostatic slideway.
3. according to the said self-adapting type constant-current static-pressure guide rail of claim 1, it is characterized in that said constant current fueller is multiple spot gear separator, or the identical gear pump group of discharge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220467928 CN202910578U (en) | 2012-09-13 | 2012-09-13 | Self-adaptive type constant-flow static pressure guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220467928 CN202910578U (en) | 2012-09-13 | 2012-09-13 | Self-adaptive type constant-flow static pressure guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202910578U true CN202910578U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220467928 Expired - Fee Related CN202910578U (en) | 2012-09-13 | 2012-09-13 | Self-adaptive type constant-flow static pressure guide rail |
Country Status (1)
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| CN (1) | CN202910578U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722448A (en) * | 2013-11-26 | 2014-04-16 | 无锡京华重工装备制造有限公司 | Workbench guide rail lubricating system of vertical lathe |
| CN103807242A (en) * | 2013-11-28 | 2014-05-21 | 芜湖恒升重型机床股份有限公司 | Vertical lathe static pressure guideway control device |
| CN104308561A (en) * | 2014-09-19 | 2015-01-28 | 井冈山大学 | Static pressure guide rail oil film thickness feedback compensation device |
| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN106903542A (en) * | 2015-12-22 | 2017-06-30 | 武汉重型机床集团有限公司 | A kind of main shaft hydrostatic slideway power-off protection method |
-
2012
- 2012-09-13 CN CN 201220467928 patent/CN202910578U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722448A (en) * | 2013-11-26 | 2014-04-16 | 无锡京华重工装备制造有限公司 | Workbench guide rail lubricating system of vertical lathe |
| CN103807242A (en) * | 2013-11-28 | 2014-05-21 | 芜湖恒升重型机床股份有限公司 | Vertical lathe static pressure guideway control device |
| CN103807242B (en) * | 2013-11-28 | 2016-03-02 | 芜湖恒升重型机床股份有限公司 | Vertical lathe static pressure guide rail control device |
| CN104308561A (en) * | 2014-09-19 | 2015-01-28 | 井冈山大学 | Static pressure guide rail oil film thickness feedback compensation device |
| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN106903542A (en) * | 2015-12-22 | 2017-06-30 | 武汉重型机床集团有限公司 | A kind of main shaft hydrostatic slideway power-off protection method |
| CN106903542B (en) * | 2015-12-22 | 2018-11-27 | 武汉重型机床集团有限公司 | A kind of main shaft hydrostatic slideway power-off protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20210913 |
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| CF01 | Termination of patent right due to non-payment of annual fee |