CN107972310A - Press machine system, control method and balancing device - Google Patents
Press machine system, control method and balancing device Download PDFInfo
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- CN107972310A CN107972310A CN201711224684.3A CN201711224684A CN107972310A CN 107972310 A CN107972310 A CN 107972310A CN 201711224684 A CN201711224684 A CN 201711224684A CN 107972310 A CN107972310 A CN 107972310A
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- valve group
- hydraulic pressure
- pressure accumulator
- compensating cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0064—Counterbalancing means for movable press elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/163—Control arrangements for fluid-driven presses for accumulator-driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/166—Electrical control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of press machine system, control method and balancing device provided in an embodiment of the present invention, are related to press technologies field.System includes forcing press and balancing device.Forcing press is connected with balancing device.Forcing press includes press body, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator and sliding block.First hydraulic pressure accumulator, the second hydraulic pressure accumulator and balancing device are connected with press body.Balancing device includes the first compensating cylinder, the second compensating cylinder, the first valve group and the second valve group.First compensating cylinder is symmetrical set with the second compensating cylinder relative to the direction of motion of sliding block.First compensating cylinder is connected by the first valve group with the first hydraulic pressure accumulator.Second compensating cylinder is connected by the second valve group with the second hydraulic pressure accumulator.When forcing press is in normal operating conditions, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator pass through the weight balancing of the first valve group, second the first compensating cylinder of valve group, the equilibrant force that the second compensating cylinder produces and sliding block respectively.Precision is high, small.
Description
Technical field
The present invention relates to press technologies field, is filled in particular to a kind of press machine system, control method and balance
Put.
Background technology
Forcing press is widely used in the various fields such as automobile, electrical instrumentation, national defense industry and aerospace, with industry
Fast development, the kind and quantity of forcing press are more and more, and industrial production is also higher and higher to forcing press quality requirement.For reality
The high-speed smooth movement of existing press ram, mechanical press uses the slipper block balancing device of compressed air type more, to balance
The weight of sliding block and mould.But since the pressure of compressed gas is 0.6-0.8MPa, pressure is less than normal to cause the balancing device knot
Structure volume is excessive；Meanwhile because the compressibility of gas make it that quantitative control accuracy is low.Traditional scheme volume is big, precision is low, uncomfortable
Close the development and application demand of intelligence manufacture.
The content of the invention
It is an object of the invention to provide a kind of press machine system, control method and balancing device, to improve the above problem.
To achieve these goals, the technical solution that the present invention takes is as follows：
In a first aspect, an embodiment of the present invention provides a kind of press machine system, including forcing press and balancing device.The pressure
Power machine is connected with the balancing device.The forcing press includes press body, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator
And sliding block.The first hydraulic pressure accumulator, the second hydraulic pressure accumulator and the balancing device with the press body
Connection.The balancing device includes the first compensating cylinder, the second compensating cylinder, the first valve group and the second valve group.First compensating cylinder
It is symmetrical set with second compensating cylinder relative to the direction of motion of the sliding block.The first hydraulic pressure accumulator and described the
Two hydraulic pressure accumulators are symmetrical set relative to the direction of motion of the sliding block.First compensating cylinder passes through first valve group
It is connected with the first hydraulic pressure accumulator.Second compensating cylinder is connected by second valve group and the second hydraulic pressure accumulator
Connect.When the forcing press is in normal operating conditions, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator lead to respectively
Cross first valve group, second valve group causes first compensating cylinder, second compensating cylinder produce equilibrant force and institute
State the weight balancing of sliding block.
Further, above-mentioned balancing device further includes the first pipeline and second pipe.First compensating cylinder passes through described
First pipeline is connected with first valve group, the first hydraulic pressure accumulator successively.Second compensating cylinder passes through described second
Pipeline is connected with second valve group, the second hydraulic pressure accumulator successively.Liquid is filled with first compensating cylinder.It is described
The liquid is filled with second compensating cylinder.The first hydraulic pressure accumulator is filled with gas.The second hydraulic pressure accumulator is filled out
Filled with the gas.When the sliding block is in downstream state, first valve group is opened, the liquid in first compensating cylinder
By first pipeline, enter the first hydraulic pressure accumulator via first valve group, in the first hydraulic pressure accumulator
The liquid compression that is entered of gas so that the pressure of the first hydraulic pressure accumulator rises to default high-voltage value, correspondingly,
Second valve group is opened, and the liquid in second compensating cylinder is entered by the second pipe via second valve group
The second hydraulic pressure accumulator, the liquid compression that the gas in the second hydraulic pressure accumulator is entered, so that second liquid
The pressure of pressure accumulator rises to default high-voltage value；When the sliding block is in uplink state, the first hydraulic pressure accumulator
Interior gas expansion, the interior liquid entered of the first hydraulic pressure accumulator is by first pipeline, via first valve group
Into in first compensating cylinder, the gas expansion in the second hydraulic pressure accumulator, the second hydraulic pressure accumulator is interior to be entered
Liquid by the second pipe, enter via second valve group in second compensating cylinder, to balance the sliding block
Weight；When the sliding block is in emergent stopping, first valve group is closed, and second valve group is closed, first balance
Liquid in cylinder is mothballed, and the liquid in second compensating cylinder is mothballed, to ensure the minimum downslide displacement of the sliding block.
Further, above-mentioned balancing device further includes the 3rd valve group.The forcing press further includes fuel tank.First balance
Cylinder is connected by the 3rd valve group with the fuel tank.Second compensating cylinder is connected by the 3rd valve group and the fuel tank
Connect.When first valve group is closed, and second valve group is closed, preset most when the pressure value that the forcing press is carried exceedes
High level, the 3rd valve group are opened, and the liquid in first compensating cylinder enters in the fuel tank via the 3rd valve group, institute
State liquid in the second compensating cylinder via the 3rd valve group to enter in the fuel tank, to prevent first compensating cylinder and described
Fluid overload in second compensating cylinder.
Further, above-mentioned balancing device further includes the 3rd pipeline and the 4th pipeline.First compensating cylinder passes through described
3rd pipeline is connected through the 3rd valve group with the fuel tank.Second compensating cylinder is by the 4th pipeline through the described 3rd
Valve group is connected with the fuel tank.
Further, above-mentioned forcing press further includes hydraulic power source.The hydraulic power source and the first hydraulic pressure accumulator, described the
Two hydraulic pressure accumulators, first valve group, second valve group connection, the hydraulic power source are used to regulate and control first valve group and institute
State the second valve group.
Further, above-mentioned balancing device further includes at least one acquisition module.At least one acquisition module includes
First acquisition module and the second acquisition module.First acquisition module is arranged at the 3rd valve group.Second collection
Module is arranged at the hydraulic power source.
Further, above-mentioned first acquisition module and second acquisition module are pressure sensor.
Further, aforesaid liquid is oil, and the gas is nitrogen.
Second aspect, an embodiment of the present invention provides a kind of control method, applied to above-mentioned system, the method bag
Include：When the sliding block is in downstream state, first valve group is opened, and the liquid in first compensating cylinder passes through described the
One pipeline, enters the first hydraulic pressure accumulator via first valve group, the gas in the first hydraulic pressure accumulator by into
The liquid compression entered, so that the pressure of the first hydraulic pressure accumulator rises to default high-voltage value, correspondingly, second valve
Group is opened, and the liquid in second compensating cylinder enters second liquid by the second pipe via second valve group
Accumulator is pressed, the liquid compression that the gas in the second hydraulic pressure accumulator is entered, so that the second hydraulic pressure accumulator
Pressure rises to default high-voltage value；When the sliding block is in uplink state, the gas in the first hydraulic pressure accumulator is swollen
Swollen, the liquid entered in the first hydraulic pressure accumulator enters described the by first pipeline, via first valve group
In one compensating cylinder, the gas expansion in the second hydraulic pressure accumulator, the interior liquid entered of the second hydraulic pressure accumulator passes through
The second pipe, enters in second compensating cylinder via second valve group, to balance the weight of the sliding block；When described
When sliding block is in emergent stopping, first valve group is closed, and second valve group is closed, the liquid quilt in first compensating cylinder
Seal up for safekeeping, the liquid in second compensating cylinder is mothballed, to ensure the minimum downslide displacement of the sliding block.
The third aspect, an embodiment of the present invention provides a kind of balancing device, the balancing device includes the first compensating cylinder, the
Two compensating cylinders, the first valve group and the second valve group.Second compensating cylinder is relative to the direction of motion of the sliding block of forcing press in symmetrical
Set.First compensating cylinder is connected by first valve group with the first hydraulic pressure accumulator of the forcing press.Described second
Compensating cylinder is connected by second valve group with the second hydraulic pressure accumulator of the forcing press.When the forcing press is in normal work
When making state, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator pass through first valve group, second valve respectively
Group is so that the weight balancing for the equilibrant force and the sliding block that first compensating cylinder, second compensating cylinder produce.
A kind of press machine system, control method and balancing device provided in an embodiment of the present invention, including forcing press and balance
Device.The forcing press is connected with the balancing device.The forcing press includes press body, the first hydraulic pressure accumulator, the
Two hydraulic pressure accumulators and sliding block.The first hydraulic pressure accumulator, the second hydraulic pressure accumulator and the balancing device are and institute
State press body connection.The balancing device includes the first compensating cylinder, the second compensating cylinder, the first valve group and the second valve group.Institute
The first compensating cylinder is stated to be symmetrical set relative to the direction of motion of the sliding block with second compensating cylinder.First hydraulic pressure stores
Gesture device is symmetrical set with the second hydraulic pressure accumulator relative to the direction of motion of the sliding block.First compensating cylinder passes through
First valve group is connected with the first hydraulic pressure accumulator.Second compensating cylinder passes through second valve group and described second
Hydraulic pressure accumulator connects.When the forcing press is in normal operating conditions, the first hydraulic pressure accumulator, second hydraulic pressure
Accumulator is produced by first valve group, second valve group, first compensating cylinder, second compensating cylinder respectively
Equilibrant force and the sliding block weight balancing.Precision is high, small.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that or by implementing understanding of the embodiment of the present invention.The purpose of the present invention and other advantages can be by saying what is write
Specifically noted structure is realized and obtained in bright book, claims and attached drawing.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure diagram of press machine system provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of forcing press in press machine system provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of press machine system of the embodiment of the present invention；
Fig. 4 is the structure chart of another press machine system of the embodiment of the present invention.
In figure：10- press machine systems；100- forcing presses；101- press bodies；102- the first hydraulic pressure accumulators；103-
Second hydraulic pressure accumulator；104- sliding blocks；105- hydraulic power sources；110- balancing devices；The first compensating cylinders of 111-；112- second is balanced
Cylinder；The first valve groups of 113-；The second valve groups of 114-；The first pipelines of 115-；116- second pipes；The 3rd valve groups of 117-；118- the 3rd
Pipeline；The 4th pipelines of 119-；The first acquisition modules of 110a-；The second acquisition modules of 110b-.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" connection " should be interpreted broadly, for example, it may be fixed be electrically connected or be detachably electrically connected, or be integratedly electrically connected；
Can be that machinery is electrically connected or electricity is electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, an embodiment of the present invention provides a kind of press machine system 10, including forcing press
100 and balancing device 110.The forcing press 100 is connected with the balancing device 110.The forcing press 100 can include pressure
Machine body 101, the first hydraulic pressure accumulator 102, the second hydraulic pressure accumulator 103 and sliding block 104.The first hydraulic pressure accumulator 102,
The second hydraulic pressure accumulator 103 and the balancing device 110 are connected with the press body 101.The balancing device
110 can include the first compensating cylinder 111, the second compensating cylinder 112, the first valve group 113 and the second valve group 114.First balance
Cylinder 111 is symmetrical set with second compensating cylinder 112 relative to the direction of motion of the sliding block 104.First hydraulic pressure stores
Gesture device 102 is symmetrical set with the second hydraulic pressure accumulator 103 relative to the direction of motion of the sliding block 104.Described first
Compensating cylinder 111 is connected by first valve group 113 with the first hydraulic pressure accumulator 102.Second compensating cylinder 112 passes through
Second valve group 114 is connected with the second hydraulic pressure accumulator 103.When the forcing press 100 is in normal operating conditions,
The first hydraulic pressure accumulator 102, the second hydraulic pressure accumulator 103 pass through first valve group 113, second valve respectively
Group 114 is so that the weight for the equilibrant force and the sliding block 104 that first compensating cylinder 111, second compensating cylinder 112 produce is put down
Weighing apparatus.
Further, the balancing device 110 can also include the first pipeline 115 and second pipe 116.Described first is flat
Weighing apparatus cylinder 111 is connected with first valve group 113, the first hydraulic pressure accumulator 102 successively by first pipeline 115.Institute
State the second compensating cylinder 112 by the second pipe 116 successively with second valve group 114, the second hydraulic pressure accumulator 103
Connection.Liquid is filled with first compensating cylinder 111.The liquid is filled with second compensating cylinder 112.Described first
Hydraulic pressure accumulator 102 is filled with gas.The second hydraulic pressure accumulator 103 is filled with the gas.When the sliding block 104 is in
During downstream state, first valve group 113 is opened, the path signal that R11 as shown in Figure 3 is represented, first compensating cylinder 111
Interior liquid is described via first valve group 113 into the first hydraulic pressure accumulator 102 by first pipeline 115
The liquid compression that gas in first hydraulic pressure accumulator 102 is entered, so that the pressure of the first hydraulic pressure accumulator 102 rises
To default high-voltage value, correspondingly, second valve group 114 is opened, the path signal that R12 as shown in Figure 3 is represented, and described the
Liquid in two compensating cylinders 112 is entered second hydraulic pressure via second valve group 114 and is stored by the second pipe 116
Gesture device 103, the liquid compression that the gas in the second hydraulic pressure accumulator 103 is entered, so that the second hydraulic pressure accumulator
103 pressure rises to default high-voltage value；When the sliding block 104 is in uplink state, the first hydraulic pressure accumulator 102
Interior gas expansion, the liquid entered in the first hydraulic pressure accumulator 102 is by first pipeline 115, via described the
One valve group 113 enters in first compensating cylinder 111, the gas expansion in the second hydraulic pressure accumulator 103, second liquid
Press the liquid entered in accumulator 103 that it is flat to enter described second via second valve group 114 by the second pipe 116
Weigh in cylinder 112, to balance the weight of the sliding block 104；When the sliding block 104 is in emergent stopping, first valve group 113
Close, second valve group 114 is closed, the path signal that R21, R22 as shown in Figure 3 are represented, in first compensating cylinder 111
Liquid be mothballed, the liquid in second compensating cylinder 112 is mothballed, to ensure the minimum downslide displacement of the sliding block 104
Amount.It can effectively prevent mould, forcing press and the safety of operating personnel, realize the emergency stop function of safety and stability.
Further, the balancing device 110 can also include the 3rd valve group 117.The forcing press 100 can also include
Fuel tank.First compensating cylinder 111 is connected by the 3rd valve group 117 with the fuel tank.Second compensating cylinder 112 passes through
3rd valve group 117 is connected with the fuel tank.When first valve group 113 is closed, and second valve group 114 is closed, when
The pressure value that the forcing press 100 is carried exceedes default peak, and the 3rd valve group 117 is opened, R31 as shown in Figure 3,
The path that R32 is represented is illustrated, and the liquid in first compensating cylinder 111 enters in the fuel tank via the 3rd valve group 117,
Liquid in second compensating cylinder 112 enters in the fuel tank via the 3rd valve group 117, to prevent first balance
Fluid overload in cylinder 111 and second compensating cylinder 112.3rd valve group 117 can be safety overflow, for protecting the
The individual channel that one compensating cylinder 111, the second compensating cylinder 112 and R11, R12, R21, R22, R31 and R32 are represented.
In the present embodiment, the liquid is oil, and the gas is nitrogen.
Further, please refer to Fig.1 and Fig. 3, the balancing device 110 can also include the 3rd pipeline 118 and the 4th pipe
Road 119.First compensating cylinder 111 is connected by the 3rd pipeline 118 through the 3rd valve group 117 with the fuel tank.Institute
The second compensating cylinder 112 is stated to connect with the fuel tank through the 3rd valve group 117 by the 4th pipeline 119.
Further, the forcing press 100 can also include hydraulic power source 105.The hydraulic power source 105 and first hydraulic pressure
Accumulator 102, the second hydraulic pressure accumulator 103, first valve group 113, second valve group 114 connect, the hydraulic pressure
Source 105 is used to regulate and control first valve group 113 and second valve group 114.
Further, Fig. 1 and Fig. 4 are please referred to, the balancing device 110 can also include at least one collection mould
Block.At least one acquisition module can include the first acquisition module 110a and the second acquisition module 110b.Described first adopts
Collection module 110a is arranged at the 3rd valve group 117.The second acquisition module 110b is arranged at the hydraulic power source 105.
Further, the first acquisition module 110a and the second acquisition module 110b may each be, but be not limited to
For pressure sensor.
A kind of operation principle of press machine system 10 provided in an embodiment of the present invention is as follows：
When the forcing press 100 is in normal operating conditions, the first hydraulic pressure accumulator 102, second hydraulic pressure
Accumulator 103 passes through first valve group 113, second valve group 114, first compensating cylinder 111, described respectively
The weight balancing of the equilibrant force that two compensating cylinders 112 produce and the sliding block 104.
When the sliding block 104 is in downstream state, first valve group 113 is opened, in first compensating cylinder 111
Liquid enters the first hydraulic pressure accumulator 102 by first pipeline 115, via first valve group 113, and described first
The liquid compression that gas in hydraulic pressure accumulator 102 is entered so that the pressure of the first hydraulic pressure accumulator 102 rise to it is pre-
If high-voltage value, correspondingly, second valve group 114 is opened, and the liquid in second compensating cylinder 112 is managed by described second
Road 116, enters the second hydraulic pressure accumulator 103, in the second hydraulic pressure accumulator 103 via second valve group 114
The liquid compression that gas is entered, so that the pressure of the second hydraulic pressure accumulator 103 rises to default high-voltage value；When described
When sliding block 104 is in uplink state, the gas expansion in the first hydraulic pressure accumulator 102, the first hydraulic pressure accumulator 102
The liquid of interior entrance is entered in first compensating cylinder 111, institute by first pipeline 115 via first valve group 113
The gas expansion in the second hydraulic pressure accumulator 103 is stated, the liquid entered in the second hydraulic pressure accumulator 103 passes through described second
Pipeline 116, enters in second compensating cylinder 112 via second valve group 114, to balance the weight of the sliding block 104；When
When the sliding block 104 is in emergent stopping, first valve group 113 is closed, and second valve group 114 is closed, and described first is flat
Liquid in weighing apparatus cylinder 111 is mothballed, and the liquid in second compensating cylinder 112 is mothballed, to ensure the minimum of the sliding block 104
Downslide displacement.
When first valve group 113 is closed, and second valve group 114 is closed, when the pressure that the forcing press 100 is carried
Force value exceedes default peak, and the 3rd valve group 117 is opened, and the liquid in first compensating cylinder 111 is via the described 3rd
Valve group 117 enters in the fuel tank, and the liquid in second compensating cylinder 112 enters the oil via the 3rd valve group 117
In case, to prevent the fluid overload in first compensating cylinder 111 and second compensating cylinder 112.
An embodiment of the present invention provides a kind of press machine system 10, including forcing press 100 and balancing device 110.The pressure
Power machine 100 is connected with the balancing device 110.The forcing press 100 can include press body 101, the first hydraulic pressure saves up strength
Device 102, the second hydraulic pressure accumulator 103 and sliding block 104.The first hydraulic pressure accumulator 102, the second hydraulic pressure accumulator 103
It is connected with the balancing device 110 with the press body 101.The balancing device 110 can include the first compensating cylinder
111st, the second compensating cylinder 112, the first valve group 113 and the second valve group 114.First compensating cylinder 111 and second compensating cylinder
112 are symmetrical set relative to the direction of motion of the sliding block 104.The first hydraulic pressure accumulator 102 and second hydraulic pressure
Accumulator 103 is symmetrical set relative to the direction of motion of the sliding block 104.First compensating cylinder 111 passes through described first
Valve group 113 is connected with the first hydraulic pressure accumulator 102.Second compensating cylinder 112 by second valve group 114 with it is described
Second hydraulic pressure accumulator 103 connects.When the forcing press 100 is in normal operating conditions, the first hydraulic pressure accumulator
102nd, the second hydraulic pressure accumulator 103 passes through first valve group 113, second valve group 114 described first respectively
The weight balancing of equilibrant force and the sliding block 104 that compensating cylinder 111, second compensating cylinder 112 produce.Precision is high, small.
An embodiment of the present invention provides a kind of control method, applied to above-mentioned system, the described method includes：When the cunning
When block is in downstream state, first valve group is opened, the liquid in first compensating cylinder by first pipeline, via
First valve group enters the first hydraulic pressure accumulator, the liquid pressure that the gas in the first hydraulic pressure accumulator is entered
Contracting, so that the pressure of the first hydraulic pressure accumulator rises to default high-voltage value, correspondingly, second valve group is opened, institute
Liquid in the second compensating cylinder is stated by the second pipe, enters the second hydraulic pressure accumulator via second valve group,
The liquid compression that gas in the second hydraulic pressure accumulator is entered, so that the pressure of the second hydraulic pressure accumulator rises to
Default high-voltage value；When the sliding block is in uplink state, the gas expansion in the first hydraulic pressure accumulator, described first
The liquid entered in hydraulic pressure accumulator is entered in first compensating cylinder via first valve group by first pipeline,
Gas expansion in the second hydraulic pressure accumulator, the interior liquid entered of the second hydraulic pressure accumulator are managed by described second
Road, enters in second compensating cylinder via second valve group, to balance the weight of the sliding block；When the sliding block is in tight
When emergency stop is stopped, first valve group is closed, and second valve group is closed, and the liquid in first compensating cylinder is mothballed, described
Liquid in second compensating cylinder is mothballed, to ensure the minimum downslide displacement of the sliding block.
It is apparent to those skilled in the art that for convenience and simplicity of description, the control of foregoing description
The specific work process of method, may be referred to the corresponding process in aforementioned pressure machine system embodiment, details are not described herein.
Fig. 1 and Fig. 3 are please referred to, an embodiment of the present invention provides a kind of balancing device 110, the balancing device 110
It can include the first compensating cylinder 111, the second compensating cylinder 112, the first valve group 113 and the second valve group 114.First compensating cylinder
111 are symmetrical set with second compensating cylinder 112 relative to the direction of motion of the sliding block 104.First compensating cylinder 111
It is connected by first valve group 113 with the first hydraulic pressure accumulator 102.Second compensating cylinder 112 passes through second valve group
114 are connected with the second hydraulic pressure accumulator 103.When the forcing press 100 is in normal operating conditions, first hydraulic pressure saves up strength
Device 102, the second hydraulic pressure accumulator 103 pass through first valve group 113, second valve group 114 described respectively
The weight balancing of equilibrant force and the sliding block 104 that one compensating cylinder 111, second compensating cylinder 112 produce.
It is apparent to those skilled in the art that for convenience and simplicity of description, the balance of foregoing description
The specific work process of device, may be referred to the corresponding process in aforementioned pressure machine system embodiment, details are not described herein.
To sum up, a kind of press machine system, control method and balancing device provided in an embodiment of the present invention, including forcing press and
Balancing device.The forcing press is connected with the balancing device.The forcing press includes press body, the first hydraulic pressure saves up strength
Device, the second hydraulic pressure accumulator and sliding block.The first hydraulic pressure accumulator, the second hydraulic pressure accumulator and the balancing device are equal
It is connected with the press body.The balancing device includes the first compensating cylinder, the second compensating cylinder, the first valve group and the second valve
Group.First compensating cylinder is symmetrical set with second compensating cylinder relative to the direction of motion of the sliding block.Described first
Hydraulic pressure accumulator is symmetrical set with the second hydraulic pressure accumulator relative to the direction of motion of the sliding block.First balance
Cylinder is connected by first valve group with the first hydraulic pressure accumulator.Second compensating cylinder passes through second valve group and institute
State the connection of the second hydraulic pressure accumulator.When the forcing press is in normal operating conditions, the first hydraulic pressure accumulator, described
Two hydraulic pressure accumulators pass through first valve group, second valve group, first compensating cylinder, second balance respectively
The weight balancing of the equilibrant force that cylinder produces and the sliding block.Precision is high, small.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. press machine system, it is characterised in that including forcing press and balancing device, the forcing press and the balancing device Connection, the forcing press include press body, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator and sliding block, first liquid Pressure accumulator, the second hydraulic pressure accumulator and the balancing device are connected with the press body, the balancing device Including the first compensating cylinder, the second compensating cylinder, the first valve group and the second valve group, first compensating cylinder and the second compensating cylinder phase Be symmetrical set for the direction of motion of the sliding block, the first hydraulic pressure accumulator and the second hydraulic pressure accumulator relative to The direction of motion of the sliding block is symmetrical set, and first compensating cylinder is saved up strength by first valve group and first hydraulic pressure Device connects, and second compensating cylinder is connected by second valve group with the second hydraulic pressure accumulator, at the forcing press When normal operating conditions, the first hydraulic pressure accumulator, the second hydraulic pressure accumulator pass through first valve group, institute respectively State the weight balancing of equilibrant force and the sliding block that the second valve group causes first compensating cylinder, second compensating cylinder to produce.
- 2. system according to claim 1, it is characterised in that the balancing device further includes the first pipeline and the second pipe Road, first compensating cylinder are connected with first valve group, the first hydraulic pressure accumulator successively by first pipeline, institute State the second compensating cylinder to connect with second valve group, the second hydraulic pressure accumulator successively by the second pipe, described Liquid is filled with one compensating cylinder, is filled with the liquid in second compensating cylinder, the first hydraulic pressure accumulator is filled with Gas, the second hydraulic pressure accumulator are filled with the gas, and when the sliding block is in downstream state, first valve group is beaten Open, the liquid in first compensating cylinder is stored by first pipeline via first valve group into first hydraulic pressure Gesture device, the liquid compression that the gas in the first hydraulic pressure accumulator is entered, so that the pressure of the first hydraulic pressure accumulator Default high-voltage value is risen to, correspondingly, second valve group is opened, and the liquid in second compensating cylinder passes through described second Pipeline, enters the second hydraulic pressure accumulator, the gas in the second hydraulic pressure accumulator is entered via second valve group Liquid compression so that the pressure of the second hydraulic pressure accumulator rises to default high-voltage value；When the sliding block is in uplink During state, the gas expansion in the first hydraulic pressure accumulator, the interior liquid entered of the first hydraulic pressure accumulator passes through described First pipeline, enters in first compensating cylinder, the gas expansion in the second hydraulic pressure accumulator via first valve group, It is flat to enter described second by the second pipe via second valve group for the liquid entered in the second hydraulic pressure accumulator Weigh in cylinder, to balance the weight of the sliding block；When the sliding block is in emergent stopping, first valve group is closed, and described the Two valve groups are closed, and the liquid in first compensating cylinder is mothballed, and the liquid in second compensating cylinder is mothballed, to ensure State the minimum downslide displacement of sliding block.
- 3. system according to claim 2, it is characterised in that the balancing device further includes the 3rd valve group, the pressure Machine further includes fuel tank, and first compensating cylinder is connected by the 3rd valve group with the fuel tank, and second compensating cylinder passes through 3rd valve group is connected with the fuel tank, when first valve group is closed, and second valve group is closed, when the forcing press The pressure value carried exceedes default peak, and the 3rd valve group is opened, and the liquid in first compensating cylinder is via described 3rd valve group enters in the fuel tank, and the liquid in second compensating cylinder enters in the fuel tank via the 3rd valve group, To prevent the fluid overload in first compensating cylinder and second compensating cylinder.
- 4. system according to claim 3, it is characterised in that the balancing device further includes the 3rd pipeline and the 4th pipe Road, first compensating cylinder are connected by the 3rd pipeline through the 3rd valve group with the fuel tank, second compensating cylinder Connected by the 4th pipeline through the 3rd valve group with the fuel tank.
- 5. system according to claim 3, it is characterised in that the forcing press further includes hydraulic power source, the hydraulic power source with The first hydraulic pressure accumulator, the second hydraulic pressure accumulator, first valve group, second valve group connection, the hydraulic pressure Source is used to regulate and control first valve group and second valve group.
- 6. system according to claim 5, it is characterised in that the balancing device further includes at least one acquisition module, At least one acquisition module includes the first acquisition module and the second acquisition module, and first acquisition module is arranged at described At 3rd valve group, second acquisition module is arranged at the hydraulic power source.
- 7. system according to claim 6, it is characterised in that first acquisition module and second acquisition module are equal For pressure sensor.
- 8. system according to claim 2, it is characterised in that the liquid is oil, and the gas is nitrogen.
- A kind of 9. control method, it is characterised in that applied to claim 2-8 any one of them systems, the described method includes： When the sliding block is in downstream state, first valve group is opened, and the liquid in first compensating cylinder passes through described first Pipeline, enters the first hydraulic pressure accumulator, the gas in the first hydraulic pressure accumulator is entered via first valve group Liquid compression so that the pressure of the first hydraulic pressure accumulator rises to default high-voltage value, correspondingly, second valve group Open, the liquid in second compensating cylinder enters second hydraulic pressure by the second pipe via second valve group Accumulator, the liquid compression that the gas in the second hydraulic pressure accumulator is entered, so that the pressure of the second hydraulic pressure accumulator Power rises to default high-voltage value；When the sliding block is in uplink state, the gas expansion in the first hydraulic pressure accumulator, It is flat to enter described first by first pipeline via first valve group for the liquid entered in the first hydraulic pressure accumulator Weigh in cylinder, the gas expansion in the second hydraulic pressure accumulator, the interior liquid entered of the second hydraulic pressure accumulator passes through described Second pipe, enters in second compensating cylinder via second valve group, to balance the weight of the sliding block；When the sliding block During in emergent stopping, first valve group is closed, and second valve group is closed, and the liquid in first compensating cylinder is sealed Deposit, the liquid in second compensating cylinder is mothballed, to ensure the minimum downslide displacement of the sliding block.
- 10. a kind of balancing device, it is characterised in that the balancing device includes the first compensating cylinder, the second compensating cylinder, the first valve group With the second valve group, second compensating cylinder is symmetrical set relative to the direction of motion of the sliding block of forcing press, first balance Cylinder is connected by first valve group with the first hydraulic pressure accumulator of the forcing press, and second compensating cylinder passes through described second Valve group is connected with the second hydraulic pressure accumulator of the forcing press, when the forcing press is in normal operating conditions, described first Hydraulic pressure accumulator, the second hydraulic pressure accumulator are flat by first valve group, second valve group described first respectively The weight balancing of equilibrant force and the sliding block that weighing apparatus cylinder, second compensating cylinder produce.
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| CN201711224684.3A CN107972310A (en) | 2017-11-27 | 2017-11-27 | Press machine system, control method and balancing device |
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| CN201711224684.3A CN107972310A (en) | 2017-11-27 | 2017-11-27 | Press machine system, control method and balancing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109434425A (en) * | 2018-12-11 | 2019-03-08 | 山东省科学院激光研究所 | Press machine system |
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