CN103790881B - The control method of vertical lathe hydrostatic slideway control device - Google Patents

The control method of vertical lathe hydrostatic slideway control device Download PDF

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Publication number
CN103790881B
CN103790881B CN201310632810.4A CN201310632810A CN103790881B CN 103790881 B CN103790881 B CN 103790881B CN 201310632810 A CN201310632810 A CN 201310632810A CN 103790881 B CN103790881 B CN 103790881B
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oil
oil pipe
pressure
multiple spot
vertical lathe
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CN103790881A (en
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马龙
张爱萍
尹学虎
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WUHU HENGSHENG HEAVY-DUTY MACHINE TOOL Co Ltd
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WUHU HENGSHENG HEAVY-DUTY MACHINE TOOL Co Ltd
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Abstract

The invention discloses a kind of vertical lathe hydrostatic slideway control device, comprise constant displacement pump, workbench static-pressure oil chamber; This control device arranges multi-point flux distributor, multiple spot gear separator; Constant displacement pump is connected with multi-point flux distributor by oil circuit; Multiple spot gear separator is connected with workbench static-pressure oil chamber by oil circuit; Multiple spot gear separator is connected with multiple spot gear separator by three oil circuits.Adopt technique scheme, vertical lathe is carried according to the weight multiple-rank control of workpiece, can improve machining accuracy greatly; Adopt the control 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, economize energy; Adopt solenoid control emptying, adopt the flow in overflow valve control system, adopt the pressure of pressure sensor detection system, lower to the requirement of hydraulic component performance, be convenient to realize Automated condtrol.

Description

The control method of vertical lathe hydrostatic slideway control device
Technical field
The invention belongs to the technical field of machine cut machining tool, relate to the structure of vertical lathe, more particularly, the present invention relates to the control method of vertical lathe hydrostatic slideway control device.
Background technology
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 the excessive impact brought of the gap of maximum carrying and minimum carrying simultaneously.
Mostly hydrostatic slideway is adopted in prior art.The minimum carrying of vertical lathe is exactly the deadweight of workbench, often differ greatly with on maximum carrying tonnage, this is in process, the hydraulic fluid flow rate that will adjust hydrostatic slideway on pumping plant controls, and method of adjustment is commonly several below using: 1, constant displacement pump frequency conversion or servomotor speed governing; 2, hydraulic valve speed governing.
The defect that the mode that more than adjusts exists is:
1, degree of regulation is low and control complicated, 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 control method of vertical lathe hydrostatic slideway control device, its objective is and ensure the precision of hydrostatic slideway under different bearer.
To achieve these goals, the technical scheme that the present invention takes is:
Vertical lathe hydrostatic slideway control device of the present invention, comprises constant displacement pump, workbench static-pressure oil chamber, and described control device arranges multi-point flux distributor, multiple spot gear separator; Described constant displacement pump is connected with multi-point flux distributor by oil circuit; Described multiple spot gear separator is connected with workbench static-pressure oil chamber by oil circuit; Described multiple spot gear 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 workbench static-pressure oil chamber is provided with location sensitive switch.
Described workbench static-pressure oil chamber is provided with pressure switch.
The oil circuit that described constant displacement pump is connected with multi-point flux distributor establishes overflow valve.
Described control method, its technical scheme is:
When 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 constant displacement pump is after overflow valve set pressure, the first dispensing pump through multi-point flux distributor directly drives multiple spot gear separator by the first oil pipe, enter workbench static pressure chamber, workbench is floated, and is detected by location sensitive switch; Now, the second dispensing pump of multi-point flux distributor and the 3rd dispensing 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 during equivalent-load, again step switch is selected at action button station, the magnetic valve dead electricity of draining bypass on the second oil pipe is closed, drive multiple spot gear separator through the pressure oil of multi-point flux distributor through the first oil pipe and the second oil pipe by constant displacement pump like this, enter workbench static-pressure oil chamber; Now, the flow of pressure oil increases, and the magnetic valve of the draining bypass on the 3rd oil pipe obtains electric opening, and is in draining state, realizes the carrying of medium load;
When the maximum carrying of vertical lathe workstation, the magnetic valve dead electricity of all draining bypasses is closed, like this from constant displacement pump outlet pressure oil through multi-point flux distributor, multiple spot gear separator is being driven by the first oil pipe, the second oil pipe and the 3rd oil pipe, enter workbench static-pressure oil chamber, pressure oil flow is now maximum, thus realizes the maximum carrying of vertical lathe workstation.
The present invention adopts technique scheme, and vertical lathe is carried according to the weight multiple-rank control of workpiece, can improve machining accuracy greatly; Adopt the control 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, economize energy; Adopt solenoid control emptying, adopt the flow in overflow valve control system, adopt the pressure of pressure sensor detection system, lower to the requirement of hydraulic component performance, be convenient to realize Automated condtrol.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Be labeled as in figure:
1, constant displacement pump, 2, overflow valve, 3, multi-point flux distributor, 4, draining bypass, 5, draining bypass, 6, multiple spot gear separator, 7, workbench static-pressure oil chamber, 8, pressure switch, the 9, first oil pipe, the 10, second oil pipe, the 11, the 3rd oil pipe.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure of the present invention expressed by Fig. 1, is a kind of vertical lathe hydrostatic slideway control device, comprises constant displacement pump 1, workbench static-pressure oil chamber 7.The present invention relates to a kind of vertical lathe static pressure (hydraulic pressure) control technology, relate in particular to a kind of flow-control.Belong to Fluid-transmission and control technology field.
The present invention is a kind of brand-new Static prestressed-pile technology used on vertical lathe, adopt the control method of variable-flow, in conjunction with electrical control, object is to overcome the defect that degree of regulation is low and control is complicated, it is made to be suitable for the occasion that Flow-rate adjustment excursion is wide, required precision is high, also convenient operation, reduces costs, economize energy.
In order to solve prior art Problems existing and overcome its defect, realize the goal of the invention ensureing the precision of hydrostatic slideway under different bearer, the technical scheme that the present invention takes is:
As shown in Figure 1, vertical lathe hydrostatic slideway control device of the present invention, described control device arranges multi-point flux distributor 3, multiple spot gear separator 6; Described constant displacement pump 1 is connected with multi-point flux distributor 3 by oil circuit; Described multiple spot gear separator 6 is connected with workbench static-pressure oil chamber 7 by oil circuit; Described multiple spot gear separator 6 is connected with multi-point flux distributor 3 by three oil circuits.
Above-mentioned vertical lathe Static prestressed-pile technology, is divided into third gear the carrying of vertical lathe: minimum carrying, middle carrying, maximum carrying.
The invention provides the brand-new application of Static prestressed-pile technology on vertical lathe, vertical lathe is carried according to the weight multiple-rank control of workpiece, can improve machining accuracy greatly; Adopt the control 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, economize energy; Adopt solenoid control emptying, adopt the flow in overflow valve control system, adopt the pressure of pressure sensor detection system, lower to the requirement of hydraulic component performance, be convenient to realize Automated condtrol.
Three articles of described oil circuits are respectively the first oil pipe 9, second oil pipe 10 and the 3rd oil pipe 11, and the second described oil pipe 10 is provided with draining bypass 4, and described 3rd oil pipe 11 is provided with draining bypass 5.
The oil-in of described multi-point flux distributor 3 is communicated with constant displacement pump 1, and the oil outlet end of described multi-point flux distributor 3 is connected with the import of multiple spot gear separator 6 with the 3rd oil pipe 11 through the first oil pipe 9, second oil pipe 10 respectively; 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-out; Multiple spot gear divides has device 6 to be connected with workbench static pressure chamber 7, and by the floatation volume of position switch 8 testing platform.
Multi-point flux distributor 3 is connected with draining bypass 5 with draining bypass 4 respectively, and draining bypass 4 is connected with multiple spot gear separator 6 with draining bypass 5.
Described emptying bypass comprises check valve and magnetic valve.Described emptying bypass 4 and emptying bypass 5 magnetic valve are switch valve.
Described workbench static-pressure oil chamber 7 is provided with location sensitive switch.
Described workbench static-pressure oil chamber 7 is provided with pressure switch 8.
Pipeline between described constant displacement pump 1 and multi-point flux separator 3 is parallel with hydraulic circuit overflow valve 2.
In order to realize the goal of the invention identical with technique scheme, present invention also offers the control method that above-described vertical lathe hydrostatic slideway control device adopts, its technical scheme is:
When 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 constant displacement pump 1 is after overflow valve 2 set pressure, the first dispensing pump through multi-point flux distributor 3 directly drives multiple spot gear separator 6 by the first oil pipe 9, enter workbench static pressure chamber, workbench is floated, and is detected by location sensitive switch; Now, the second dispensing pump of multi-point flux distributor 3 and the 3rd dispensing pump respectively through the pressure oil of the second oil pipe 10 and the 3rd oil pipe 11 by emptying bypass draining oil return box;
When in vertical lathe workstation during equivalent-load, again step switch is selected at action button station, the magnetic valve dead electricity of draining bypass 4 on the second oil pipe 10 is closed, drive multiple spot gear 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 constant displacement pump 1 like this, enter workbench static-pressure oil chamber 7; Now, the flow of pressure oil increases, and the magnetic valve of the draining bypass 5 on the 3rd oil pipe 11 obtains electric opening, and is in draining state, realizes the carrying of medium load;
When the maximum carrying of vertical lathe workstation, the magnetic valve dead electricity of all draining bypasses is closed, like this from constant displacement pump 1 export pressure oil through multi-point flux distributor 3, multiple spot gear separator 6 is being driven by the first oil pipe 9, second oil pipe 10 and the 3rd oil pipe 11, enter workbench static-pressure oil chamber 7, pressure oil flow is now maximum, thus realizes the maximum carrying of vertical lathe workstation.
The beneficial effect of employing technique scheme is:
1, the present invention adopts brand-new Static prestressed-pile technology, its application on vertical lathe, and vertical lathe is carried according to the weight multiple-rank control of workpiece, can improve machining accuracy greatly;
2, technique scheme of the present invention adopts the control method of variable-flow, and in conjunction with electrical control, overcome the defect that degree of regulation is low and control is complicated, convenient operation, reduces costs, economize energy;
3, because this present invention adopts solenoid control emptying, adopt the pressure in overflow valve initialization system, adopt the pressure of pressure sensor detection system, lower to the requirement of hydraulic component performance, be convenient to realize Automated condtrol.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.

Claims (1)

1. the control method of vertical lathe hydrostatic slideway control device, described control device comprises constant displacement pump (1), workbench static-pressure oil chamber (7); Described control device also arranges multi-point flux distributor (3), multiple spot gear separator (6); Described constant displacement pump (1) is connected with multi-point flux distributor (3) by oil circuit; Described multiple spot gear separator (6) is connected with workbench static-pressure oil chamber (7) by oil circuit; Described multiple spot gear 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 workbench static-pressure oil chamber (7) is provided with location sensitive switch;
Described workbench static-pressure oil chamber (7) is provided with pressure switch (8);
The oil circuit that described constant displacement pump (1) is connected with multi-point flux distributor (3) establishes overflow valve (2);
It is characterized in that described control method is:
When 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 constant displacement pump (1) is after overflow valve (2) set pressure, the first dispensing pump through multi-point flux distributor (3) directly drives multiple spot gear separator (6) by the first oil pipe (9), enter workbench static-pressure oil chamber, workbench is floated, and is detected by location sensitive switch; Now, the second dispensing pump of multi-point flux distributor (3) and the 3rd dispensing pump respectively through the pressure oil of the second oil pipe (10) and the 3rd oil pipe (11) by draining bypass (4,5) draining;
When in vertical lathe workstation during equivalent-load, again step switch is selected at action button station, the magnetic valve dead electricity of the upper draining bypass (4) of the second oil pipe (10) is closed, drive multiple spot gear 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 constant displacement pump (1) like this, enter workbench static-pressure oil chamber (7); Now, the flow of pressure oil increases, and the magnetic valve of the draining bypass (5) on the 3rd oil pipe (11) obtains electric opening, and is in draining state, realizes the carrying of medium load;
When the maximum carrying of vertical lathe workstation, the magnetic valve dead electricity of all draining bypasses (4,5) is closed, the pressure oil exported from constant displacement pump (1) is like this through multi-point flux distributor (3), multiple spot gear separator (6) is being driven by the first oil pipe (9), the second oil pipe (10) and the 3rd oil pipe (11), enter workbench static-pressure oil chamber (7), pressure oil flow is now maximum, thus realizes the maximum carrying of vertical lathe workstation.
CN201310632810.4A 2013-11-28 2013-11-28 The control method of vertical lathe hydrostatic slideway control device Active CN103790881B (en)

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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
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

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CN201455668U (en) * 2009-07-08 2010-05-12 路文忠 Liquid discontinuous flowing precise circular turntable static pressure guide rail by using sealing piece
CN201534283U (en) * 2009-11-24 2010-07-28 天津市精诚机床制造有限公司 Hydrostatic rail hydraulic system for revolving workbench of heavy numerical control cylindrical gear milling machine
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
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
CN202894762U (en) * 2012-07-05 2013-04-24 大连优创液压设备有限公司 Static pressure device for equal flow control of vertical lathe bench

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201455668U (en) * 2009-07-08 2010-05-12 路文忠 Liquid discontinuous flowing precise circular turntable static pressure guide rail by using sealing piece
CN201534283U (en) * 2009-11-24 2010-07-28 天津市精诚机床制造有限公司 Hydrostatic rail hydraulic system for revolving workbench of heavy numerical control cylindrical gear milling machine
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
CN202894762U (en) * 2012-07-05 2013-04-24 大连优创液压设备有限公司 Static pressure device for equal flow control of vertical lathe bench
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

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