CN110043520A - A kind of hydraulic control system and its control method of numerically controlled lathe power chuck - Google Patents
A kind of hydraulic control system and its control method of numerically controlled lathe power chuck Download PDFInfo
- Publication number
- CN110043520A CN110043520A CN201910356245.0A CN201910356245A CN110043520A CN 110043520 A CN110043520 A CN 110043520A CN 201910356245 A CN201910356245 A CN 201910356245A CN 110043520 A CN110043520 A CN 110043520A
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- Prior art keywords
- oil
- valve
- solenoid directional
- hydraulic
- oil liquid
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
- B23B31/302—Hydraulic equipment, e.g. pistons, valves, rotary joints
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- 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
-
- 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
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Gripping On Spindles (AREA)
Abstract
The hydraulic control system and its control method of a kind of numerically controlled lathe power chuck disclosed by the invention, including fuel tank, check valve, pressure reducing valve, two-position four-way solenoid directional control valve and hydraulic cylinder, enter the direction of hydraulic cylinder oil liquid by control two-position four-way solenoid directional control valve control, and then realize the control of chucking work state, in-line is locked using check valve simultaneously, prevent oil liquid from flowing back, secondly by the pressure size of pressure reducing valve control chuck oil liquid, realize the adjusting of chuck clamping force, the hydraulic control system configuration is simple, manufacturing cost is cheap, is conducive to maintenance.
Description
Technical field
The present invention relates to hydraulic drive fields, more particularly, to a kind of power chuck hydraulic control system of numerically controlled lathe.
Background technique
With the continuous development of hydraulic technique, Hydraulic Power Transmission System is occupied critically important in the Mechanical course of numerically controlled lathe
Position, due to Hydraulic Power Transmission System, mechanism is compact, output power, reliable operation, easily controllable and adjusting, the control that it is undertaken
System and adjustment task are only second to electrical system.
Hydraulic power chuck clamping force is big and revolving speed is high, it has also become high speed numerically controlled lathe, grinding machine and turning milling center must not
The basic functional component that can lack.But existing hydraulic system structure is complicated, element is more and at high cost, and maintenance is even more more tired
It is difficult.
Problem in view of the prior art, it is necessary to a kind of hydraulic system is redesigned, with the knot of the entire hydraulic system of simplification
Structure reduces manufacturing cost.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of hydraulic control system of numerically controlled lathe power chuck
System clamps the degree of automation with release movement for chuck, simplifies the structure of hydraulic control system and promote machine tool drive
Working efficiency.
The present invention is to be achieved through the following technical solutions:
A kind of power chuck hydraulic control system of numerically controlled lathe, including fuel tank, check valve, pressure reducing valve, two-position four-way electricity
Magnetic reversal valve and hydraulic cylinder；
Wherein, the entrance of check valve is connect with fuel tank, and the outlet of check valve and the entrance of pressure reducing valve connect, and pressure reducing valve goes out
Mouthful connect with the oil inlet of two-position four-way solenoid directional control valve, two actuator ports of two-position four-way solenoid directional control valve respectively with it is hydraulic
Cylinder has bar hydraulic cavities to be connected to rodless cavity, when oil liquid enters rodless cavity, locking chuck, when oil liquid enters rod chamber, chuck pine
It opens.
Preferably, filter assemblies are also set up in the fuel tank, for being filtered to oil liquid.
Preferably, the filter assemblies include oil filter, smart oil filter and bath filter；
The arrival end of Oil pump electrical machinery group, the outlet end of smart oil filter setting Oil pump electrical machinery group, essence is arranged in the oil filter
The outlet of oil filter is connect with check valve, and the outlet of oil return line is arranged in bath filter.
Preferably, pressure switch is additionally provided on the in-line of the hydraulic cylinder right chamber.
Preferably, first pressure gauge is provided on the oil circuit between the check valve and Oil pump electrical machinery group.
Preferably, second pressure gauge is additionally provided between the oil inlet and pressure reducing valve of the two-position four-way solenoid directional control valve.
The present invention also provides the control method of the power chuck hydraulic control system of above-mentioned numerically controlled lathe,
When the conducting of two-position four-way solenoid directional control valve side, oil liquid successively passes through Oil pump electrical machinery group, check valve and pressure reducing valve
Into two-position four-way solenoid directional control valve, then oil liquid enters hydraulic cylinder from an actuator port of two-position four-way solenoid directional control valve
The oil liquid of rodless cavity, locking chuck, rod chamber enters two-position four-way solenoid directional control valve by another actuator port, then passes through
Oil return opening flows into fuel tank；
When the conducting of the two-position four-way solenoid directional control valve other side, oil liquid successively passes through Oil pump electrical machinery group, check valve and decompression
Valve enters two-position four-way solenoid directional control valve, and then oil liquid enters hydraulic from another actuator port of two-position four-way solenoid directional control valve
Cylinder has bar to press chamber, and chuck unclamps；The oil liquid of rodless cavity enters two-position four-way solenoid directional control valve by another actuator port, so
Fuel tank is flowed by oil return opening afterwards.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of hydraulic control system of numerically controlled lathe power chuck provided by the invention, including fuel tank, check valve, decompression
Valve, two-position four-way solenoid directional control valve and hydraulic cylinder enter hydraulic cylinder oil liquid by control two-position four-way solenoid directional control valve control
Direction, and then realize the control of chucking work state, while in-line is locked using check valve, prevent oil liquid from flowing back, it is secondly logical
The pressure size for crossing pressure reducing valve control chuck oil liquid, realizes the adjusting of chuck clamping force, and the hydraulic control system configuration is simple, system
Make it is low in cost, be conducive to maintenance.
Filter device is further set in fuel tank, the impurity and pollutant of oil liquid in fuel tank can be filtered out, effectively mentioned
High oil liquid degree of purity, prevents from damaging system, extends the service life of equipment.
The control method of the power chuck hydraulic control system of numerically controlled lathe provided by the invention, by controlling two-position four-way
The position of electromagnet in solenoid directional control valve, controls the flow direction of oil liquid, realizes the clamping and release of chuck, and the control method is former
Reason is simple, easily controllable and stable.
Detailed description of the invention
Fig. 1 is hydraulic control system schematic diagram of the present invention.
In figure: 1. oil filters, 2. Oil pump electrical machinery groups, 3. smart oil filters, 4. bath filters, 5. check valves, 6. pressure reducing valves,
7. two-position four-way solenoid directional control valve, 8. pressure switches, 9. hydraulic cylinders, 10. fuel tanks, 11. first pressure gauges, 12. second pressures
Table.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
As shown in Figure 1, a kind of hydraulic control system of numerically controlled lathe power chuck, including fuel tank 10, check valve 5, decompression
Valve 6, two-position four-way solenoid directional control valve 7 and hydraulic cylinder 9.
Wherein, the entrance of check valve 5 is connect with fuel tank 10, and the outlet of check valve 5 is connect with the entrance of pressure reducing valve 6, decompression
The outlet of valve 6 is connect with the oil inlet of two-position four-way solenoid directional control valve 7, two actuator ports of two-position four-way solenoid directional control valve 7
It is connected to respectively with the left chamber of hydraulic cylinder 9 and right chamber, pressure switch 8 is additionally provided on the in-line of hydraulic cylinder right chamber.
Solenoid directional control valve 7 is to lean on the thrust of electromagnet to keep spool mobile, to change the flow direction of oil liquid.For electricity
For the on-off electricity condition of the electromagnet arbitrary end of magnetic reversal valve, hydraulic cylinder 9 is fixed, and piston rod can be done to the left or to the right
Linear reciprocating motion.Change the direction of motion of oil liquid by two-position four-way solenoid directional control valve 7, so that oild chuck clamps work
Part or release.
Two four-way electromagnetic reversing valves 7 change the direction of motion of oil liquid, and in the clamp state, left chamber persistently leads to oil to chuck,
It is the locking realized after chuck clamping that it, which is acted on, loosens phenomenon with prevent from being likely to occur in process.
Check valve 5 is hydraulic lock, i.e., in-line is lockked, and oil liquid is prevented to flow back；Pressure reducing valve 6 is used to set up into hydraulic
The oil liquid pressure size of chuck, the i.e. size of chuck clamping force can be adjusted by pressure reducing valve 6.
Oil pump electrical machinery group 2 and filter assemblies are additionally provided in fuel tank 10, filter assemblies include oil filter 1,3 and of smart oil filter
Bath filter 4.
The arrival end of Oil pump electrical machinery group 2 is arranged in oil filter 1, and the outlet end of Oil pump electrical machinery group 2, essence is arranged in smart oil filter 3
The outlet of oil filter 3 is connect with check valve 5, and the outlet of oil return line is arranged in bath filter 4.
Oil filter 1 is set between fuel tank 10 and Oil pump electrical machinery group 2, and oil filter can filter out the impurity of oil liquid in fuel tank
And pollutant, oil liquid degree of purity is effectively improved, prevents from damaging system.
Be additionally provided with first pressure gauge 11 between the essence oil filter 3 and check valve 5, two-position four-way solenoid directional control valve 7 into
Hydraulic fluid port is provided with second pressure gauge 12.
Machine tool hydraulic fuel tank is mounted on the right side of lathe bed, and dischargeable capacity is 40 liters, built-in No. 20 hydraulic oil, is pacified above fuel tank
Fill a VP-20-A32-FR Oil pump electrical machinery group.Motor model is 2P4H523-VP20, and the discharge capacity of oil pump is 16L/min, system
Maximum pressure is 4MPa.
The clamping of chuck and unclamping is made of a pressure reducing valve, a solenoid directional control valve, in order to avoid having a power failure suddenly and its
The interference of its oil circuit increases a check valve in its in-line.The size of clamping force is come set pressure adjusting range by pressure reducing valve
A pressure switch is arranged, so that reaching the capable of emitting instruction in certain pressure rear, machine in 0.5~1.5Mpa on in-line
Bed enters working condition to realize indispensable safe action.
After starting lathe, by the regulation of system pressure, it is adjusted to right value, lathe can just be made to carry out other works after mixing up
Make, each portion's pressure value can be read by pressure gauge, without that pressure meter switch should be gone to appropriate location when pressure gauge, make pressure gauge
In zero-bit, to protect pressure gauge.
It is detailed to a kind of working principle progress of the hydraulic control system of numerically controlled lathe power chuck provided by the invention below
Thin explanation.
As shown in Figure 1, Oil pump electrical machinery group 2 provides for system with one when two-position four-way solenoid directional control valve 7 is in right position
The oil liquid of constant-pressure and flow.
By the variation of the seal chamber volume inside Oil pump electrical machinery group 2, by oil liquid from fuel tank 10, inhaled by oil filter 1
Enter, and the smart oil filter 3 in the exit through Oil pump electrical machinery group 2 is for re-filtering, filtered oil liquid pushes check valve 6 to push up
Bar, opening check valve 6 connects oil inlet and outlet, while check valve 5 can realize chuck locking, and circuit oil liquid is not allowed to have flowing.It crosses
Oil liquid after filter enters pressure reducing valve 6 by check valve 5, and oil liquid is flowed out from the outlet of pressure reducing valve 6, passes through two-position four-way electromagnetic switch
The oil inlet of valve 7 enters, and the right chamber of hydraulic cylinder 9 is then entered from one of actuator port, forces 9 right chamber volume of hydraulic cylinder not
It is disconnected to increase, it pushes piston to be moved to the left, realizes the purpose that chuck unclamps, while the oil liquid of 9 left chamber of hydraulic cylinder is through air cleaner 4
Flow back to fuel tank 9.
The pressure signal of oil liquid is transformed into electric signal by pressure switch 8, when oil liquid pressure reaches the tune of pressure switch
When constant-pressure, chuck decompression alarm signal is issued, the oil liquid backtracking of 9 right chamber of hydraulic cylinder flows back to fuel tank 10.
When two-position four way change valve 7 is in left position, Oil pump electrical machinery group 2 sucks oil liquid from fuel tank 10 by oil filter 1, and
It is flowed out through the smart oil filter 3 at pump discharge, oil liquid pushes 6 mandril of check valve, and opening check valve 6 connects oil inlet and outlet, simultaneously
Check valve 5 can realize chuck locking, and circuit oil liquid is not allowed to have flowing.Filtered oil liquid enters pressure reducing valve 6 by check valve 5,
Oil liquid is flowed out from the outlet of pressure reducing valve 6, is entered by the oil inlet of two-position four-way solenoid directional control valve 7, then from another work
The left chamber for entering hydraulic cylinder 9 as hydraulic fluid port forces 9 left chamber volume of hydraulic cylinder constantly to increase, and piston is pushed to move right, and realizes chuck
Pinching action.
A kind of hydraulic control system of numerically controlled lathe power chuck provided by the invention promotes oil liquid, tool using variable pump
Have the advantages that noise is low, high-efficient, at low cost.Oil filter is set simultaneously between fuel tank and variable pump, is gone out in Oil pump electrical machinery group
Smart oil filter is arranged in hydraulic fluid port again, carries out the degree of purity for guaranteeing oil liquid again.The exit for being mounted on pump can be protected in addition to pump
In addition element is equipped with air cleaner at fuel tank, prevent the abrasion containing the impurity such as dust aggravation part in sucking air.With
Upper setting can filter out the impurity and pollutant of oil liquid in fuel tank, effectively improve oil liquid degree of purity, prevent from causing brokenly system
It is bad.Secondly it is equipped with oil filler beside fuel tank, is used to supply oil liquid to fuel tank, while liquidometer can be equipped on fuel tank, use
To measure the volume that oil liquid is added.
Change the direction of motion of rotating hydraulic cylinder piston by changing the station of two-position four-way solenoid directional control valve to change
Become clamping or releasing for chuck.It is hydraulic lock using check valve, i.e., circuit is lockked, circuit oil liquid is not allowed to have flowing, with
Guarantee the safety of the chuck when in use.
The hydraulic control system is with compact-sized, small in size, light-weight, configuration is flexible, installation, maintenance is convenient, reduces
Leakage, the pressure loss between access are small, improve the characteristics of system effectiveness and stability.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (7)
1. a kind of power chuck hydraulic control system of numerically controlled lathe, which is characterized in that including fuel tank (10), check valve (5), subtract
Pressure valve (6), two-position four-way solenoid directional control valve (7) and hydraulic cylinder (9)；
Wherein, the entrance of check valve (5) is connect with fuel tank (10), and the outlet of check valve (5) is connect with the entrance of pressure reducing valve (6),
The outlet of pressure reducing valve (6) is connect with the oil inlet of two-position four-way solenoid directional control valve (7), and the two of two-position four-way solenoid directional control valve (7)
A actuator port has bar hydraulic cavities and rodless cavity to be connected to hydraulic cylinder (9) respectively, when oil liquid enters rodless cavity, locking chuck,
When oil liquid enters rod chamber, chuck unclamps.
2. the power chuck hydraulic control system of numerically controlled lathe according to claim 1, which is characterized in that the fuel tank (10)
In also set up filter assemblies, for being filtered to oil liquid.
3. the power chuck hydraulic control system of numerically controlled lathe according to claim 2, which is characterized in that the filter assemblies
Including oil filter (1), smart oil filter (3) and bath filter (4)；
The arrival end in Oil pump electrical machinery group (2) is arranged in the oil filter (1), and smart oil filter (3) setting Oil pump electrical machinery group (2) goes out
Mouth end, the outlet of smart oil filter (3) are connect with check valve (5), and the outlet of oil return line is arranged in bath filter (4).
4. the power chuck hydraulic control system of numerically controlled lathe according to claim 1, which is characterized in that the hydraulic cylinder is right
Pressure switch (8) are additionally provided on the in-line of chamber.
5. the power chuck hydraulic control system of numerically controlled lathe according to claim 1, which is characterized in that the check valve
(5) first pressure gauge (11) are provided on the oil circuit between Oil pump electrical machinery group (2).
6. the power chuck hydraulic control system of numerically controlled lathe according to claim 1, which is characterized in that the two-position four-way
Second pressure gauge (12) are additionally provided between the oil inlet and pressure reducing valve (6) of solenoid directional control valve (7).
7. a kind of control method of the power chuck hydraulic control system of numerically controlled lathe described in -6 Arbitrary Terms according to claim 1,
It is characterized in that,
When the conducting of two-position four-way solenoid directional control valve (7) side, oil liquid successively passes through Oil pump electrical machinery group (2), check valve (5) and subtracts
Pressure valve (6) enters two-position four-way solenoid directional control valve (7), then a working oil of the oil liquid from two-position four-way solenoid directional control valve (7)
Mouth enters the rodless cavity of hydraulic cylinder (9), and the oil liquid of locking chuck, rod chamber enters two-position four-way electricity by another actuator port
Magnetic reversal valve (7) then flows into fuel tank (10) by oil return opening；
When two-position four-way solenoid directional control valve (7) other side conducting when, oil liquid successively pass through Oil pump electrical machinery group (2), check valve (5) and
Pressure reducing valve (6) enters two-position four-way solenoid directional control valve (7), then another work of oil liquid from two-position four-way solenoid directional control valve (7)
As hydraulic fluid port enter hydraulic cylinder (9) have bar press chamber, chuck unclamp；The oil liquid of rodless cavity enters two by another actuator port
Four-way electromagnetic reversing valve (7) then flows into fuel tank (10) by oil return opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356245.0A CN110043520A (en) | 2019-04-29 | 2019-04-29 | A kind of hydraulic control system and its control method of numerically controlled lathe power chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356245.0A CN110043520A (en) | 2019-04-29 | 2019-04-29 | A kind of hydraulic control system and its control method of numerically controlled lathe power chuck |
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| Publication Number | Publication Date |
|---|---|
| CN110043520A true CN110043520A (en) | 2019-07-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910356245.0A Pending CN110043520A (en) | 2019-04-29 | 2019-04-29 | A kind of hydraulic control system and its control method of numerically controlled lathe power chuck |
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| CN (1) | CN110043520A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233708A (en) * | 2021-12-15 | 2022-03-25 | 中国航发动力股份有限公司 | Hydraulic control system and method for positioning dividing plate |
| CN115972664A (en) * | 2022-12-19 | 2023-04-18 | 山东泰丰智能控制股份有限公司 | Angle modulation device control system |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233708A (en) * | 2021-12-15 | 2022-03-25 | 中国航发动力股份有限公司 | Hydraulic control system and method for positioning dividing plate |
| CN114233708B (en) * | 2021-12-15 | 2023-11-24 | 中国航发动力股份有限公司 | Hydraulic control system and method for indexing plate positioning |
| CN115972664A (en) * | 2022-12-19 | 2023-04-18 | 山东泰丰智能控制股份有限公司 | Angle modulation device control system |
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Application publication date: 20190723 |