CN103790881A - Method for controlling hydrostatic guideway control device of vertical lathe - Google Patents
Method for controlling hydrostatic guideway control device of vertical lathe Download PDFInfo
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- CN103790881A CN103790881A CN201310632810.4A CN201310632810A CN103790881A CN 103790881 A CN103790881 A CN 103790881A CN 201310632810 A CN201310632810 A CN 201310632810A CN 103790881 A CN103790881 A CN 103790881A
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Abstract
The invention discloses a method for controlling a hydrostatic guideway control device of a vertical lathe. The vertical lathe comprises a constant delivery pump and a workbench hydrostatic oil cavity, the hydrostatic guideway control device comprises a multi-point flow distributor and a multi-point gear oil distributor, the constant delivery pump is connected with the multi-point flow distributor, and the multi-point gear oil distributor is connected with the workbench hydrostatic oil cavity through an oil way, and connected with the multi-point flow distributor through three oil ways. By adopting the above technical scheme, load bearing of the vertical lathe can be controlled in a grading manner according to weight of workpieces, so that processing accuracy is greatly improved; by adopting a flow-variable control method and combining with electric control, the defects of low adjusting accuracy and complexity in control are overcome, convenience in operation is realized, cost is lowered, and energy resources are saved; an electromagnetic valve is adopted to control oil discharging, an overflow valve is adopted to control flow in a system, a pressure sensor is adopted to detect pressure of the system, requirements on hydraulic elements are low, and convenience is brought to realization of automatized control.
Description
Technical field
The invention belongs to the technical field of machine cut working machine tool, relate to the structure of vertical lathe, more particularly, the present invention relates to the controlling method of vertical lathe hydrostatic slideway control gear.
Background technique
A main parameter of vertical lathe is maximum carrying, and maximum carrying relates to guide rail form and the hydraulic control mode of vertical lathe workstation.Also to consider maximum carrying and the minimum excessive impact bringing of gap of carrying simultaneously.
In prior art, mostly adopt hydrostatic slideway.The minimum carrying of vertical lathe is exactly the deadweight of worktable, carry on tonnage and often differ greatly with maximum, this is in course of working, will on pumping plant, adjust the hydraulic fluid flow rate of hydrostatic slideway and control, general common adjusting method is several below using: 1, metering pump frequency conversion or actuating motor speed governing; 2, hydrovalve speed governing.
The defect that above adjustment mode exists is:
1, degree of regulation is low and control complicatedly, is unsuitable for the occasion that Flow-rate adjustment excursion is wide, required precision is high, is also not easy to operation;
2, cost is very high, and energy waste is very high.
Summary of the invention
The invention provides a kind of controlling method of vertical lathe hydrostatic slideway control gear, its objective is and guarantee the precision of hydrostatic slideway under different bearer.
To achieve these goals, the technological scheme that the present invention takes is:
Vertical lathe hydrostatic slideway control gear of the present invention, comprises metering pump, worktable static-pressure oil chamber, and described control gear arranges multi-point flux distributor, multiple spot gear oil separator; Described metering pump is connected with multi-point flux distributor by oil circuit; Described multiple spot gear oil separator is connected with worktable static-pressure oil chamber by oil circuit; Described multiple spot gear oil separator is connected with multi-point flux distributor by three oil circuits.
Three articles of described oil circuits are respectively the first oil pipe, the second oil pipe and the 3rd oil pipe, are respectively equipped with draining bypass at the second described oil pipe and the 3rd oil pipe.
Described draining bypass is provided with electromagnetic switch valve.
Described worktable static-pressure oil chamber is provided with location sensitive switch.
Described worktable static-pressure oil chamber is provided with pressure switch.
On the oil circuit that described metering pump is connected with multi-point flux distributor, establish relief valve.
Described controlling method, its technological scheme is:
In the time of the minimum carrying of vertical lathe workstation, the electromagnetic switch valve of the draining bypass on the second oil pipe and the 3rd oil pipe is all opened, the hydraulic oil of metering pump is after relief valve set pressure, the first proportioning pump through multi-point flux distributor directly drives multiple spot gear oil separator by the first oil pipe, enter worktable static pressure chamber, worktable is floated, and detected by location sensitive switch; Now, the second proportioning pump of multi-point flux distributor and the 3rd proportioning pump respectively through the pressure oil of the second oil pipe and the 3rd oil pipe by emptying bypass draining;
When in vertical lathe workstation when equivalent-load, on operating button station, select step switch again, the solenoid valve dead electricity of draining bypass on the second oil pipe is closed, drive multiple spot gear oil separator through the pressure oil of multi-point flux distributor through the first oil pipe and the second oil pipe by metering pump like this, enter worktable static-pressure oil chamber; Now, the flow of pressure oil increases, and the solenoid valve of the draining bypass on the 3rd oil pipe obtains electric opening, and in draining state, realizes the carrying of medium load;
In the time of the maximum carrying of vertical lathe workstation, the solenoid valve dead electricity of all draining bypasses is closed, the pressure oil exporting from metering pump is like this through multi-point flux distributor, driving multiple spot gear oil separator by the first oil pipe, the second oil pipe and the 3rd oil pipe, enter worktable static-pressure oil chamber, pressure oil flow maximum now, thus realize the maximum carrying of vertical lathe workstation.
The present invention adopts technique scheme, makes vertical lathe carrying according to the weight stepping control of workpiece, greatly to improve machining accuracy; Adopt the controlling method of variable-flow, in conjunction with electrical control, overcome the defect that degree of regulation is low and control is complicated, convenient operation, reduces costs, energy saving; Adopt electromagnetic valve emptying, adopt the flow in relief valve control system, the pressure of adopts pressure sensor detection system, lower to the requirement of hydraulic pressure components and parts performance, be convenient to realize automation control.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, be labeled as:
1, metering pump, 2, relief valve, 3, multi-point flux distributor, 4, draining bypass, 5, draining bypass, 6, multiple spot gear oil separator, 7, worktable static-pressure oil chamber, 8, pressure switch, 9, the first oil pipe, 10, the second oil pipe, 11, the 3rd oil pipe.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technological scheme.
Structure of the present invention as expressed in Fig. 1, for a kind of vertical lathe hydrostatic slideway control gear, comprises metering pump 1, worktable static-pressure oil chamber 7.The present invention relates to a kind of vertical lathe static pressure (hydraulic pressure) control technique, relate in particular to a kind of flow control.Belong to Fluid-transmission and control technique field.
The present invention is a kind of brand-new static pressure control technique of using on vertical lathe, adopt the controlling method of variable-flow, in conjunction with electrical control, object is in order to overcome the defect that degree of regulation is low and control is complicated, make it be suitable for the occasion that Flow-rate adjustment excursion is wide, required precision is high, also convenient operation, reduces costs, energy saving.
In order to solve the problem of prior art existence and to overcome its defect, realize the goal of the invention that guarantees the precision of hydrostatic slideway under different bearer, the technological scheme that the present invention takes is:
As shown in Figure 1, vertical lathe hydrostatic slideway control gear of the present invention, described control gear arranges multi-point flux distributor 3, multiple spot gear oil separator 6; Described metering pump 1 is connected with multi-point flux distributor 3 by oil circuit; Described multiple spot gear oil separator 6 is connected with worktable static-pressure oil chamber 7 by oil circuit; Described multiple spot gear oil separator 6 is connected with multi-point flux distributor 3 by three oil circuits.
Above-mentioned vertical lathe static pressure control technique, is divided into third gear the carrying of vertical lathe: minimum carrying, middle carrying, maximum carrying.
The invention provides the application of brand-new static pressure control technique on vertical lathe, make vertical lathe carrying according to the weight stepping control of workpiece, greatly to improve machining accuracy; Adopt the controlling method of variable-flow, overcome in conjunction with electrical control the defect that degree of regulation is low and control is complicated, convenient operation, reduces costs, energy saving; Adopt electromagnetic valve emptying, adopt the flow in relief valve control system, the pressure of adopts pressure sensor detection system, lower to the requirement of hydraulic pressure components and parts performance, be convenient to realize automation control.
Three articles of described oil circuits are respectively the first oil pipe 9, the second oil pipe 10 and the 3rd oil pipe 11, on the second described oil pipe 10, are provided with draining bypass 4, on described the 3rd oil pipe 11, are provided with draining bypass 5.
The filler opening of described multi-point flux distributor 3 is communicated with metering pump 1, and the oil outlet end of described multi-point flux distributor 3 is connected with 6 imports of multiple spot gear oil separator through the first oil pipe 9, the second oil pipe 10 and the 3rd oil pipe 11 respectively; The second oil pipe 10 and the 3rd oil pipe 11 are separately installed with emptying bypass 4 and draining bypass 5 on the pipeline of each oil outlet; Multiple spot gear divides has device 6 to be connected with worktable static pressure chamber 7, and by the floatation volume of position switch 8 testing platforms.
Described emptying bypass comprises one-way valve and solenoid valve.Described emptying bypass 4 and emptying bypass 5 solenoid valves are switch valve.
Described worktable static-pressure oil chamber 7 is provided with location sensitive switch.
Described worktable static-pressure oil chamber 7 is provided with pressure switch 8.
On pipeline between described metering pump 1 and multi-point flux oil separator 3, be parallel with hydraulic circuit relief valve 2.
In order to realize the goal of the invention identical with technique scheme, the controlling method that the present invention also provides above-described vertical lathe hydrostatic slideway control gear to adopt, its technological scheme is:
In the time of the minimum carrying of vertical lathe workstation, the electromagnetic switch valve of the draining bypass on the second oil pipe 10 and the 3rd oil pipe 11 is all opened, the hydraulic oil of metering pump 1 is after relief valve 2 set pressures, the first proportioning pump through multi-point flux distributor 3 directly drives multiple spot gear oil separator 6 by the first oil pipe 9, enter worktable static pressure chamber, worktable is floated, and detected by location sensitive switch; Now, the second proportioning pump of multi-point flux distributor 3 and the 3rd proportioning pump respectively through the pressure oil of the second oil pipe 10 and the 3rd oil pipe 11 by emptying bypass draining oil sump tank;
When in vertical lathe workstation when equivalent-load, on operating button station, select step switch again, on the second oil pipe 10, the solenoid valve dead electricity of draining bypass 4 is closed, drive multiple spot gear oil separator 6 through the pressure oil of multi-point flux distributor 3 through the first oil pipe 9 and the second oil pipe 10 by metering pump 1 like this, enter worktable static-pressure oil chamber 7; Now, the flow of pressure oil increases, and the solenoid valve of the draining bypass 5 on the 3rd oil pipe 11 obtains electric opening, and in draining state, realizes the carrying of medium load;
In the time of the maximum carrying of vertical lathe workstation, the solenoid valve dead electricity of all draining bypasses is closed, the pressure oil exporting from metering pump 1 is like this through multi-point flux distributor 3, driving multiple spot gear oil separator 6 by the first oil pipe 9, the second oil pipe 10 and the 3rd oil pipe 11, enter worktable static-pressure oil chamber 7, pressure oil flow maximum now, thus realize the maximum carrying of vertical lathe workstation.
Adopt the beneficial effect of technique scheme to be:
1, the present invention adopts brand-new static pressure control technique, and its application on vertical lathe makes vertical lathe carrying according to the weight stepping control of workpiece, greatly to improve machining accuracy;
2, technique scheme of the present invention adopts the controlling method of variable-flow, in conjunction with electrical control, overcomes the defect that degree of regulation is low and control is complicated, and convenient operation, reduces costs, energy saving;
3, because this present invention adopts electromagnetic valve emptying, adopt the pressure in relief valve initialization system, the pressure of adopts pressure sensor detection system, lower to the requirement of hydraulic pressure components and parts performance, be convenient to realize automation control.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or without improving, design of the present invention and technological scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (1)
1. the controlling method of vertical lathe hydrostatic slideway control gear, described control gear comprises metering pump (1), worktable static-pressure oil chamber (7); Described control gear also arranges multi-point flux distributor (3), multiple spot gear oil separator (6); Described metering pump (1) is connected with multi-point flux distributor (3) by oil circuit; Described multiple spot gear oil separator (6) is connected with worktable static-pressure oil chamber (7) by oil circuit; Described multiple spot gear oil separator (6) is connected with multi-point flux distributor (3) by three oil circuits;
Three articles of described oil circuits are respectively the first oil pipe (9), the second oil pipe (10) and the 3rd oil pipe (11), are respectively equipped with draining bypass (4,5) at described the second oil pipe (10) and the 3rd oil pipe (11);
Described draining bypass (4,5) is provided with electromagnetic switch valve;
Described worktable static-pressure oil chamber (7) is provided with location sensitive switch;
Described worktable static-pressure oil chamber (7) is provided with pressure switch (8);
On the oil circuit that described metering pump (1) is connected with multi-point flux distributor (3), establish relief valve (2);
It is characterized in that described controlling method is:
In the time of the minimum carrying of vertical lathe workstation, the electromagnetic switch valve of the draining bypass (4,5) on the second oil pipe (10) and the 3rd oil pipe (11) is all opened, the hydraulic oil of metering pump (1) is after relief valve (2) set pressure, the first proportioning pump through multi-point flux distributor (3) directly drives multiple spot gear oil separator (6) by the first oil pipe (9), enter worktable static pressure chamber, worktable is floated, and detected by location sensitive switch; Now, the second proportioning pump of multi-point flux distributor (3) and the 3rd proportioning pump respectively through the pressure oil of the second oil pipe (10) and the 3rd oil pipe (11) by emptying bypass (4,5) draining;
When in vertical lathe workstation when equivalent-load, on operating button station, select step switch again, the solenoid valve dead electricity of the upper draining bypass (4) of the second oil pipe (10) is closed, drive multiple spot gear oil separator (6) through the pressure oil of multi-point flux distributor (3) through the first oil pipe (9) and the second oil pipe (10) by metering pump (1) like this, enter worktable static-pressure oil chamber (7); Now, the flow of pressure oil increases, and the solenoid valve of the draining bypass (5) on the 3rd oil pipe (11) obtains electric opening, and in draining state, realizes the carrying of medium load;
In the time of the maximum carrying of vertical lathe workstation, the solenoid valve dead electricity of all draining bypasses (4,5) is closed, the pressure oil exporting from metering pump (1) is like this through multi-point flux distributor (3), driving multiple spot gear oil separator (6) by the first oil pipe (9), the second oil pipe (10) and the 3rd oil pipe (11), enter worktable static-pressure oil chamber (7), pressure oil flow maximum now, thus realize the maximum carrying of vertical lathe workstation.
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| CN201310632810.4A CN103790881B (en) | 2013-11-28 | 2013-11-28 | The control method of vertical lathe hydrostatic slideway control device |
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| CN201310632810.4A CN103790881B (en) | 2013-11-28 | 2013-11-28 | The control method of vertical lathe hydrostatic slideway control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825571A (en) * | 2018-09-04 | 2018-11-16 | 阜新北鑫星液压有限公司 | A kind of load-sensitive gear pump with variable capacity system |
| CN115284075A (en) * | 2022-09-28 | 2022-11-04 | 山东豪迈机械科技股份有限公司 | Machine tool static pressure cavity pressure detection compensation device and numerical control machine tool |
| CN117484215A (en) * | 2024-01-02 | 2024-02-02 | 中国机械总院集团宁波智能机床研究院有限公司 | Control method and device of aerostatic turntable and aerostatic turntable |
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| JPH01109051A (en) * | 1987-10-19 | 1989-04-26 | Fanuc Ltd | Machining fluid supply controller for numeric control machine tool |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825571A (en) * | 2018-09-04 | 2018-11-16 | 阜新北鑫星液压有限公司 | A kind of load-sensitive gear pump with variable capacity system |
| CN115284075A (en) * | 2022-09-28 | 2022-11-04 | 山东豪迈机械科技股份有限公司 | Machine tool static pressure cavity pressure detection compensation device and numerical control machine tool |
| CN115284075B (en) * | 2022-09-28 | 2023-01-31 | 山东豪迈机械科技股份有限公司 | Machine tool static pressure cavity pressure detection compensation device and numerical control machine tool |
| CN117484215A (en) * | 2024-01-02 | 2024-02-02 | 中国机械总院集团宁波智能机床研究院有限公司 | Control method and device of aerostatic turntable and aerostatic turntable |
| CN117484215B (en) * | 2024-01-02 | 2024-04-26 | 中国机械总院集团宁波智能机床研究院有限公司 | Control method and device of aerostatic turntable and aerostatic turntable |
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