CN106862977A - A kind of novel combined machine tool hydraulic speed regulation loop and its control system - Google Patents
A kind of novel combined machine tool hydraulic speed regulation loop and its control system Download PDFInfo
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- CN106862977A CN106862977A CN201510913156.3A CN201510913156A CN106862977A CN 106862977 A CN106862977 A CN 106862977A CN 201510913156 A CN201510913156 A CN 201510913156A CN 106862977 A CN106862977 A CN 106862977A
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- speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
- B23Q5/266—Fluid-pressure drives with means to control the feed rate by controlling the fluid flow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Numerical Control (AREA)
Abstract
A kind of novel combined machine tool hydraulic speed regulation loop and its control system, the work speed twice of the hydraulic circuit can be adjusted arbitrarily, be independent of each other each other, improve the speed adjustment range of power slide, work accommodation scope is wider, improves operating efficiency and business efficiency.And using melting PLC that automatic technology, computer technology, the communication technology be integrated as control system, more adapt to the trend of equipment development, the characteristics of not only changing big traditional relay volume, weight weight, and improve lathe automatically control degree, make Machine-Tool Control flexible, stable performance, failure is reduced, and maintenance and debugging is convenient.
Description
Art
The present invention relates to a kind of novel combined machine tool hydraulic speed regulation loop and its control system, it is adaptable to mechanical field.
Background technology
Current many machine power slide units employ hydraulic circuit, most of its control section is electrical control, hardware connection is more, system reliability is poor, inefficiency, some hydraulic circuit only one of which work speeds, though some hydraulic circuits have two work speeds, but when a work is entered with two work speed changes, two works enter the maximum minimum speed entered no more than a work of adjustable speed, and lathe speed adjustable range is narrow, it is impossible to according to technological requirement governing speed.
The content of the invention
The present invention proposes a kind of novel combined machine tool hydraulic speed regulation loop and its control system, the work speed twice of the hydraulic circuit can be adjusted arbitrarily, be independent of each other each other, improve the speed adjustment range of power slide, work accommodation scope is wider, improves operating efficiency and business efficiency.And using melting PLC that automatic technology, computer technology, the communication technology be integrated as control system, more adapt to the trend of equipment development, the characteristics of not only changing big traditional relay volume, weight weight, and improve lathe automatically control degree, make Machine-Tool Control flexible, stable performance, failure is reduced, and maintenance and debugging is convenient.
The technical solution adopted in the present invention is：
The novel combined machine tool hydraulic speed regulation loop uses two flow speed control valves being made up of pressure-reducing valve 10, choke valve 1l, 12 to control the work of slide unit one to enter and two work speeds respectively, two work speeds are independent of each other, speed adjustable range increases, simultaneously, this two flow speed control valve can play loading effect, just made feed speed slack-off before tool contact workpiece, the unexpected collision of cutter and workpiece will not be caused；Using reversal valve 7,8, choke valve 11,12, pressure-reducing valve 10 realizes the speed switching that F.F. is entered with work, simplifies hydraulic circuit, and reliable in action, switch speed are steady.
The circuit controls part uses certain company FX series of PLC Controlled by Programmable Controller, and its function is strong, and speed is fast, and number of contacts is few, and reliability is high, and this is that have the relay system of contact incomparable, can realize automatic/single-revolution loop control and crawl adjustment control.The input signal of PLC is the switching value model of magnetic switch and button switch, there is 19 On-off signal points.The output signal of PLC is corresponding with the electromagnet coil control signal of magnetic valve, there is 10 output switch parameter points, controls left and right slide unit F.F., a work is entered, two works are entered, stop, rewind and Workpiece clamping and release.The left and right slide unit loop hydraulic system of lathe belongs to the structure of concurrent order, in the design of program, using concurrent sequential control method for designing, is instructed using step instruction and master control.
The beneficial effects of the invention are as follows：The work speed twice of the hydraulic circuit can be adjusted arbitrarily, be independent of each other each other, improve the speed adjustment range of power slide, and work accommodation scope is wider, improves operating efficiency and business efficiency.And using melting PLC that automatic technology, computer technology, the communication technology be integrated as control system, more adapt to the trend of equipment development, the characteristics of not only changing big traditional relay volume, weight weight, and improve lathe automatically control degree, make Machine-Tool Control flexible, stable performance, failure is reduced, and maintenance and debugging is convenient.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is power slide hydraulic scheme of the invention.
Fig. 2 is power slide hydraulic scheme of the invention.
In figure：1. variable pump；2nd, 5,6,15. check valves；3. overflow valve；4. sequence valve；7th, 8. reversal valve；9. 3 position-5 way solenoid directional control valve；10th, 14. pressure-reducing valve；Ll, 12. choke valves；13rd, 18. hydraulic cylinder；16. two-position four-way solenoid directional control valves；17. pressure switches.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, novel combined machine tool hydraulic speed regulation loop uses two flow speed control valves being made up of pressure-reducing valve 10, choke valve 1l, 12 to control the work of slide unit one to enter and two work speeds respectively, two work speeds are independent of each other, speed adjustable range increases, simultaneously, this two flow speed control valve can play loading effect, just make feed speed slack-off before tool contact workpiece, will not cause the unexpected collision of cutter and workpiece；Using reversal valve 7,8, choke valve 11,12, pressure-reducing valve 10 realizes the speed switching that F.F. is entered with work, simplifies hydraulic circuit, and reliable in action, switch speed are steady.
Button is clamped, Workpiece clamping signal is sent, magnetic valve YV5 is powered, the right position of valve 16 work, pressure oil enters the big chamber of clamping cylinder 18 through valve 14, check valve 15, and small chamber loop is to fuel tank, Workpiece clamping.Pressure switch KP actions after clamping in place, represent that workpiece has been clamped.By after start button, magnetic valve YVl is powered so that the left position of valve 9, pressure-reducing valve 10, the right position of valve 7 and the right position of valve 8 connect people's system, and hydraulic cylinder differential connection makes slide unit fast feed for F.F..When one work enters slide unit and moves to precalculated position, SQ2 is depressed so that magnetic valve YVl, YV3 are powered, the left position of valve 9, pressure-reducing valve 10, choke valve 1l, 8 right access systems of reversal valve.Pressure-reducing valve 10 and choke valve 1l constitute a flow speed control valve, by adjusting the size that choke valve 11 is open, the speed that an adjustable work is entered.Choke valve 12 is on this speed without influence.When two works enter first time work feed end of a period, slide unit pressure SQ3, magnetic valve YVl, YV4 energization, YV3 power-off.The left position of valve 9, pressure-reducing valve 10, choke valve 12, the access system of reversal valve 7.One new flow speed control valve is constituted by pressure-reducing valve 10 and choke valve 12, choke valve 11 is on the flow speed control valve in this loop without influence.That is two work speeds are not limited by a work speed, and its big I is adjusted by adjusting the amount of opening of pressure-reducing valve 10 and choke valve 12.When second work feed of slide unit is finished, halted after pressure S04, rested at dead buting iron, its residence time, through the time delay of the time relay, then sending signal returned to slide unit by time relay control.Time relay time delay sends signal, powers off magnetic valve YVl, and magnetic valve YV2 is powered, the work of the right position of valve 9, and pressure oil is directly entered the small chamber of hydraulic cylinder 13, slide unit is quickly return.When slide unit returns original position soon, during depression stroke switch SQl, all magnetic valves are powered off, the middle position access system of valve 9, and hydraulic cylinder two cavity oil road is cut off, and realizes the original position stop of slide unit.After slide unit returns original position stop, by release button, magnetic valve YV6 is set to be powered, the work of the left position of valve 16 changes oil circuit direction, unclamps workpiece, while pressure switch KP resets.Workpiece is removed, 1 working cycles terminates.
As Fig. 2, circuit controls part use certain company FX series of PLC Controlled by Programmable Controller, its function is strong, and speed is fast, and number of contacts is few, and reliability is high, and this is that have the relay system of contact incomparable, can realize automatic/single-revolution loop control and crawl adjustment control.The input signal of PLC is the switching value model of magnetic switch and button switch, there is 19 On-off signal points.The output signal of PLC is corresponding with the electromagnet coil control signal of magnetic valve, there is 10 output switch parameter points, controls left and right slide unit F.F., a work is entered, two works are entered, stop, rewind and Workpiece clamping and release.The left and right slide unit loop hydraulic system of lathe belongs to the structure of concurrent order, in the design of program, using concurrent sequential control method for designing, is instructed using step instruction and master control.
Automatic control process：Change-over switch is pulled to " automatic " position, program is skipped at P0, program is entered original state using PLC initialization pulse signals, now press start button, Workpiece clamping state is set, workpiece is clamped, left and right slide unit is in home state.After clamping signal is transmitted, left and right slide unit F.F. state is set simultaneously, the loaded work piece connected behind them is driven, with the satisfaction of each switch condition, system will on request be automatically performed every step work, realize the job requirement of hydraulic system automatic cycle.When left and right slide unit retreats to original position soon, workpiece releasing orientation is set, and workpiece unclamps, this state will be stopped the TD times, to remove workpiece, when the T0 times arrive, if sA is placed in single-revolution position, system will return to original state by workpiece releasing orientation, without carrying out automatic cycle process；If SA is not disposed in single-revolution position, system will return to Workpiece clamping state, circulate next time automatically by workpiece releasing orientation.
Manual control process：By switch spanner to " manual " position, instructed using master control, by point operation control button, realize the crawl adjustment that left and right power slide advances, retreats.
Claims (3)
1. a kind of novel combined machine tool hydraulic speed regulation loop and its control system, it is characterized in that：The novel combined machine tool hydraulic speed regulation loop uses two flow speed control valves being made up of pressure-reducing valve 10, choke valve 1l, 12 to control the work of slide unit one to enter and two work speeds respectively, two work speeds are independent of each other, speed adjustable range increases, simultaneously, this two flow speed control valve can play loading effect, just made feed speed slack-off before tool contact workpiece, the unexpected collision of cutter and workpiece will not be caused.
2. a kind of novel combined machine tool hydraulic speed regulation loop according to claim 1 and its control system, it is characterized in that：The novel combined machine tool hydraulic speed regulation loop uses reversal valve 7,8, choke valve 11,12, and pressure-reducing valve 10 realizes the speed switching that F.F. is entered with work, simplifies hydraulic circuit, and reliable in action, switch speed are steady.
3. a kind of novel combined machine tool hydraulic speed regulation loop according to claim 1 and its control system, it is characterized in that：The circuit controls part uses certain company FX series of PLC Controlled by Programmable Controller, and its function is strong, and speed is fast, and number of contacts is few, and reliability is high, and this is that have the relay system of contact incomparable, can realize automatic/single-revolution loop control and crawl adjustment control.
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| CN201510913156.3A CN106862977A (en) | 2015-12-11 | 2015-12-11 | A kind of novel combined machine tool hydraulic speed regulation loop and its control system |
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| CN201510913156.3A CN106862977A (en) | 2015-12-11 | 2015-12-11 | A kind of novel combined machine tool hydraulic speed regulation loop and its control system |
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| CN106862977A true CN106862977A (en) | 2017-06-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117340508A (en) * | 2023-10-23 | 2024-01-05 | 株洲日望精工有限公司 | Automatic welding device for scissors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117340508A (en) * | 2023-10-23 | 2024-01-05 | 株洲日望精工有限公司 | Automatic welding device for scissors |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
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| WD01 | Invention patent application deemed withdrawn after publication |