CN109322881A - A kind of Double-station horizontal plate shearing machine and its hydraulic system and application - Google Patents
A kind of Double-station horizontal plate shearing machine and its hydraulic system and application Download PDFInfo
- Publication number
- CN109322881A CN109322881A CN201811413316.8A CN201811413316A CN109322881A CN 109322881 A CN109322881 A CN 109322881A CN 201811413316 A CN201811413316 A CN 201811413316A CN 109322881 A CN109322881 A CN 109322881A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- valve
- oil
- fuel tank
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010008 shearing Methods 0.000 title claims abstract description 69
- 239000002828 fuel tank Substances 0.000 claims abstract description 68
- 239000011230 binding agent Substances 0.000 claims description 107
- 239000007788 liquid Substances 0.000 claims description 39
- 238000000605 extraction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 238000005381 potential energy Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 125
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
- B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Shearing Machines (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of Double-station horizontal plate shearing machine and its hydraulic system and applications, belong to forging machine tool technical field.The hydraulic system of Double-station horizontal plate shearing machine of the invention, including fuel tank, oil pump, electro-hydraulic reversing valve, left master cylinder, left secondary cylinder, right master cylinder and right secondary cylinder, wherein the oil inlet of oil pump is connected with fuel tank, on the one hand its oil outlet is connected with the P of electro-hydraulic reversing valve mouth, be on the other hand connected by electromagnetic relief valve with fuel tank；The A mouth of the electro-hydraulic reversing valve is connected with the rodless cavity of left master cylinder, its B mouthfuls is connected with the rodless cavity of right master cylinder, the rod chamber of left master cylinder and right master cylinder is respectively corresponded to be connected with the rodless cavity of left secondary cylinder, right secondary cylinder, and the rod chamber of left secondary cylinder, right secondary cylinder is connected with the oil inlet of electromagnetic relief valve.Horizontal plate shearing machine is cooperated using hydraulic system of the invention, it can be achieved that the accurate shearing of two aerofoils to automotive frame, and its structure is simple, it is at low cost.
Description
Technical field
The invention belongs to plate shearing machine technical field, more specifically to a kind of Double-station horizontal plate shearing machine and its hydraulic
System and application.
Background technique
Plate shearing machine (English name: plate shears；Guillotine shear) belong to one of metal forming machinery, be
It is done reciprocating linear motion with a blade relative to another blade and shears the machine of plate, mainly by means of the cutter of movement
Shearing force is applied to the sheet metal of various thickness, makes plate by required using reasonable gap blade with fixed bottom knife
The size fracture separation wanted.Currently, plate shearing machine is widely used in aviation, light industry, metallurgy, chemical industry, building, ship, automobile, electricity
The industries such as power, electric appliance, decoration.
Shearing is carried out to automotive frame usually using plate shearing machine in the prior art, automotive frame is usually U-type groove steel
Structure, two sides include straightway and tilting section both ends, and existing cutter is usually vertical structure, using this vertical
When shearing machining U-type groove steel, need first to process straightway thereon, then after U-type groove steel is rotated certain angle, reprocessing
Tilting section thereon.Therefore, manufacturing procedure is more, and processing efficiency is low, is not able to satisfy the process requirements of enterprise.
Based on the above deficiency, applicant have developed a kind of Double-station horizontal plate shearing machine (application No. is
201010605818.8), this application is optimized by the structure to horizontal plate shearing machine, the blade of fixed blade and
The shape of movable blades blade is consistent with the notch of U-type groove steel side, thus can the two sides to U-type groove steel carry out one respectively
Secondary property excision forming, cutting efficiency are higher；Meanwhile this application passes through the setting of double-shear station, automotive frame peace to be formed
The processing of its processing and forming can be completed by putting after fixing, without overturning or readjusting the position of U-type groove steel.But using existing
There is hydraulic system of cutting machine to be usually unable to satisfy the demand of the horizontal plate shearing machine double-station shearing, it is therefore desirable to which two sets of independences are set
Hydraulic system, control the shear action of different station respectively by two sets of hydraulic systems, hydraulic system structure is complex, at
This is higher.
Through retrieving, the application case that Chinese Patent Application No. is 201810367455.5 discloses a kind of multistation punching production
The hydraulic system of line, the hydraulic system of this application, comprising: fuel tank, oil pump, inserted valve, the first overflow valve, the first solenoid valve,
Second solenoid valve, the second overflow valve, third solenoid valve, third overflow valve, first pressure relay, the 4th solenoid valve, the second pressure
Power relay, accumulator, several oil cylinder solenoid valves, several oil cylinders；Oil pump passes through piping connection fuel tank；Oil pump passes through hydraulic circuit
Connect inserted valve, first pressure relay, the 4th solenoid valve, each oil cylinder solenoid valve；Inserted valve passes through control fluid path connection first
Overflow valve and the first solenoid valve；Inserted valve connects second solenoid valve and the second overflow valve by control fluid path；Inserted valve passes through control
Fluid path connection third solenoid valve and third overflow valve processed；4th solenoid valve connects second pressure relay by hydraulic circuit, stores
The cavity of resorption of energy device and each oil cylinder；Each oil cylinder solenoid valve passes through the epicoele that hydraulic circuit connects corresponding each oil cylinder respectively.Using
The punching press control of multiple punch may be implemented in the hydraulic system of this application, but it needs to be arranged multiple solenoid valves respectively to different punchings
The press work of head is controlled.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome to be difficult to meet horizontal plate shearing machine double-station using existing hydraulic system of cutting machine to cut
Be essential the deficiency asked, and provides a kind of Double-station horizontal plate shearing machine and its hydraulic system and application.Using technical side of the invention
Horizontal plate shearing machine may be implemented to the accurate shearing at left and right sides of automotive frame in case, and its hydraulic system structure is simple, at
This is lower.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
First, a kind of hydraulic system of Double-station horizontal plate shearing machine of the invention, including fuel tank, oil pump, electro-hydraulic reversing valve,
Left master cylinder, left secondary cylinder, right master cylinder and right secondary cylinder, wherein the oil inlet of oil pump is connected with fuel tank, oil outlet one side with it is electro-hydraulic
The P mouth of reversal valve is connected, and is on the other hand connected by electromagnetic relief valve with fuel tank；The A mouth and left master cylinder of the electro-hydraulic reversing valve
Rodless cavity be connected, B mouthfuls are connected with the rodless cavity of right master cylinder, and the rod chamber of left master cylinder and right master cylinder respectively corresponds and left secondary
Cylinder, the rodless cavity of right secondary cylinder are connected, and the rod chamber of left secondary cylinder, right secondary cylinder is connected with the oil inlet of electromagnetic relief valve.
Further, it is unidirectional to be equipped with first for the pipeline between the A mouth and left master cylinder rodless cavity of the electro-hydraulic reversing valve
Sequence valve is equipped with the second one way sequence valve between the B mouth and right master cylinder rodless cavity of electro-hydraulic reversing valve.
It further, further include binder cylinder, which includes left side binder cylinder, right side binder cylinder, upper left binder cylinder
With upper right binder cylinder, wherein upper left binder cylinder and upper right binder cylinder are connected with the A of electro-hydraulic reversing valve mouth, B mouthfuls respectively, left side binder
Cylinder, right side binder cylinder are connected with the oil outlet of the first one way sequence valve and the second one way sequence valve respectively.
Further, the oil outlet of the oil pump also respectively with the first solenoid directional control valve, the second solenoid directional control valve into
Hydraulic fluid port is connected, the first solenoid directional control valve, the second solenoid directional control valve oil outlet be connected with fuel tank, and first solenoid directional control valve
Oil-control mouth is connected with the rod chamber of the rod chamber of left master cylinder, left secondary cylinder, the oil-control mouth of the second solenoid directional control valve and having for right master cylinder
Rod cavity, the rodless cavity of right secondary cylinder are connected.
Further, needle is additionally provided on the pipeline between the oil outlet of the oil pump and left secondary cylinder, right secondary cylinder rod chamber
Type valve and accumulator.
Further, the T mouth of the electro-hydraulic reversing valve is connected with fuel tank, and the oil inlet of oil pump passes through oil filter and oil
Case is connected, and the oil pump is connected with motor driven.
Further, the oil outlet of the oil pump is connected with pressure gauge and pressure meter switch.
Second, a kind of Double-station horizontal plate shearing machine of the invention, including above-mentioned hydraulic system.
Third, a kind of application of Double-station horizontal plate shearing machine of the invention, two aerofoils for being applied to automotive frame are cut
It cuts, specifically includes the following steps:
Step 1: accumulator repairing
Start motor, oil pump, YV1 obtains electric, and the control mouth of electromagnetic relief valve, which disconnects fuel tank and plays common overflow valve, at this time makees
With, the oil liquid that oil pump is confessed is directly entered accumulator lower part through needle valve, when pressure reaches specified size, needle valve is closed,
Accumulator repairing finishes；
Step 2: left cylinder repairing and oil extraction
Repairing: YV1, YV4 obtain electric, and the control mouth of electromagnetic relief valve disconnects fuel tank and plays common overflow valve action at this time, and the
One solenoid directional control valve connects oil circuit, and the oil liquid that oil pump is confessed is directly entered rod chamber and a left side for left master cylinder through the first solenoid directional control valve
The rodless cavity of secondary cylinder realizes repairing；
Oil extraction: YV1 power loss, YV4 obtain it is electric, at this time electromagnetic relief valve control mouth connect fuel tank rise off-load valve action, first
Solenoid directional control valve connects oil circuit, and the oil liquid in the rod chamber of left master cylinder and the rodless cavity of left secondary cylinder is directly returned through electromagnetic relief valve
Fuel tank；
Step 3: left knife rest is sheared
YV1, YV2 obtain it is electric, at this time the control mouth of electromagnetic relief valve disconnect fuel tank rise common overflow valve action, electro-hydraulic commutation
Oil circuit is connected in the right position of valve, and the oil liquid that oil pump is confessed enters upper left binder cylinder through electro-hydraulic reversing valve, and upper left binder cylinder binder acts,
Pressure continues to increase, and after reaching pressure set by the first one way sequence valve, oil liquid is directly entered through the first one way sequence valve
The rodless cavity of left side binder cylinder and left master cylinder, the movement of left side binder cylinder binder, and knife rest completes shear action, left secondary cylinder rod chamber
Oil liquid be stored in accumulator, make backhaul use；
Step 4: left knife rest backhaul
YV1 power loss, YV2 obtain electric, the control mouth connection fuel tank off-load valve action of electromagnetic relief valve at this time, knife rest is completed
After shear action, the potential energy release of accumulator storage, pressure oil enters left secondary cylinder rod chamber, and the oil liquid of left master cylinder rodless cavity is through the
One one way sequence valve, electro-hydraulic reversing valve and electromagnetic relief valve return to fuel tank, tool rest return stroke；Left side binder cylinder, upper left binder at this time
The pressure oil of cylinder also returns to fuel tank, binder cylinder pressure release backhaul through electro-hydraulic reversing valve and electromagnetic relief valve；
Step 5: right cylinder repairing and oil extraction
Repairing: YV1, YV5 obtain it is electric, at this time electromagnetic relief valve control mouth disconnect fuel tank rise common overflow valve action, second
Solenoid directional control valve connect oil circuit, the oil liquid that oil pump is confessed through the second solenoid directional control valve be directly entered right master cylinder rod chamber and right pair
The rodless cavity of cylinder realizes repairing；
Oil extraction: YV1 power loss, YV5 obtain electric, the fuel tank off-load valve action of electromagnetic relief valve control mouth connection at this time, the second electricity
Magnetic reversal valve connects oil circuit, and the oil liquid in right master cylinder rod chamber and right secondary cylinder rodless cavity directly returns to fuel tank through electromagnetic relief valve；
Step 6: right knife rest shearing
YV1, YV3 obtain it is electric, at this time electromagnetic relief valve control mouth disconnect fuel tank rise common overflow valve action, electro-hydraulic reversing valve
Oil circuit is connected in left position, and the oil liquid that oil pump is confessed enters upper right binder cylinder, the movement of upper right binder cylinder binder, pressure through electro-hydraulic reversing valve
Continue to increase, after reaching pressure set by the second one way sequence valve, oil liquid is directly entered right side through the second one way sequence valve
Binder cylinder and right master cylinder rodless cavity, right side binder cylinder binder act, and right side knife rest completion shear action, in right pair cylinder rod chamber
Oil liquid be stored in accumulator, make backhaul use；
Step 7: right tool rest return stroke
Yv1 power loss, YV3 obtain electric, the fuel tank off-load valve action of electromagnetic relief valve control mouth connection at this time, knife rest completion shearing
After movement, the potential energy release of accumulator storage, pressure oil enters right secondary cylinder rod chamber, and the oil liquid in right master cylinder rodless cavity is through second
One way sequence valve, electro-hydraulic reversing valve and electromagnetic relief valve return to fuel tank, tool rest return stroke.Upper right binder cylinder, right side binder cylinder at this time
Pressure oil also return to fuel tank, binder cylinder pressure release backhaul through electro-hydraulic reversing valve and electromagnetic relief valve.
Further, the left side binder cylinder, right side binder cylinder, upper left binder cylinder and upper right binder cylinder are Self-resetting
Spring cylinder, and the supercharging pressure of accumulator is greater than the spring restoring force of left side binder cylinder and right side binder cylinder.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) hydraulic system of a kind of Double-station horizontal plate shearing machine of the invention, including fuel tank, oil pump, electro-hydraulic reversing valve, a left side
Master cylinder, left secondary cylinder, right master cylinder and right secondary cylinder, the present invention are horizontal so as to meet by optimizing to hydraulic system
The shear demand of double-station plate shearing machine, and it can be divided by one group of motor pump and a three-position four-way valve (electro-hydraulic reversing valve)
The shearing of left and right two group oil cylinder and four movements of return are not controlled, and the hydraulic system structure is simple, and cost is relatively low, realizes
Horizontal plate shearing machine is to the accurate shearing at left and right sides of automotive frame.
(2) hydraulic system of a kind of Double-station horizontal plate shearing machine of the invention, using an accumulator for two groups of left and right oil
Cylinder return, the size so as to effectively ensure two group oil cylinder return power is identical, and then can guarantee that equipment run action is more assisted
It adjusts reliable；In addition, the present invention is optimized by the structure to hydraulic system, it thereby may be ensured that two group oil cylinder shearing works not
It carries out simultaneously, there is interlock function, and then on the one hand advantageously ensure that shear effect, on the other hand can also effectively prevent because storing
Energy device influences oil cylinder return for shortage of oil.
(3) hydraulic system of a kind of Double-station horizontal plate shearing machine of the invention has when controlling two group oil cylinder shear actions
Upper binder is given respectively with side pressure material oil cylinder to be sheared workpiece in both directions and is positioned, and first pressure presses side above again when binder,
Back tool rest just carries out shearing work to lateral pressing in place, and the fixed fastness of workpiece, is conducive to when so as to effectively improve shearing
Guarantee shearing quality.Meanwhile when needing to carry out the shearing of right knife rest, left knife rest elder generation return, to upper right binder cylinder and right side binder
Rear right knife rest just starts shearing work to cylinder working in place, to meet the sequencing that first backhaul is sheared again.
(4) a kind of Double-station horizontal plate shearing machine of the invention, by being optimized to its hydraulic system, so as to
Meets the needs of automotive frame double-station shearing, hydraulic system structure design used is simple, and cost is relatively low, and can effectively ensure that
The shear precision of automotive frame two sides.
(5) application of a kind of Double-station horizontal plate shearing machine of the invention, using one group of motor pump and a 3-position 4-way
Valve can control the shearing of left and right two group oil cylinder and four movements of return respectively, and upper binder and lateral pressing give the work being sheared
The positioning of part both direction, left and right shearing respectively shear two aerofoils of workpiece, and can be mutual when the shearing of two group oil cylinders
Lock, to not only can guarantee shearing quality, but also does not influence the normal return of oil cylinder.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the hydraulic system of Double-station horizontal plate shearing machine of the invention.
Label declaration in schematic diagram:
1, oil filter；2, oil pump；3, motor；4, pressure gauge；5, pressure meter switch；6, the first solenoid directional control valve；701, left
Side pressure material cylinder；702, right side binder cylinder；801, the first one way sequence valve；802, the second one way sequence valve；901, left master cylinder；902,
Left secondary cylinder；903, right master cylinder；904, right secondary cylinder；10, needle valve；11, accumulator；12, electro-hydraulic reversing valve；13, electromagnetic relief valve；
1401, upper left binder cylinder；1402, upper right binder cylinder；15, the second solenoid directional control valve.
Specific embodiment
To further appreciate that the contents of the present invention, now in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of hydraulic system of Double-station horizontal plate shearing machine of the present embodiment, including fuel tank 16, oil pump 2,
Electro-hydraulic reversing valve 12, left master cylinder 901, left secondary cylinder 902, right master cylinder 903 and right secondary cylinder 904, the wherein oil inlet and fuel tank of oil pump 2
16 are connected, on the one hand oil outlet is connected with the P of electro-hydraulic reversing valve 12 mouth, on the other hand pass through electromagnetic relief valve 13 and fuel tank 16
It is connected；The A mouth of the electro-hydraulic reversing valve 12 is connected with the rodless cavity of left master cylinder 901, B mouthfuls with the rodless cavity phase of right master cylinder 903
Even, the rod chamber of left master cylinder 901 and right master cylinder 903 is respectively corresponded is connected with the rodless cavity of left secondary cylinder 902, right secondary cylinder 904, and left
Secondary cylinder 902, right secondary cylinder 904 rod chamber be connected with the oil inlet of electromagnetic relief valve 13, and the oil outlet of oil pump 2 and left secondary cylinder
902, (oil inlet and left secondary cylinder 902 of electromagnetic relief valve 13,904 rod chamber of right secondary cylinder of the pipeline between 904 rod chamber of right secondary cylinder
Between pipeline) on be additionally provided with needle valve 10 and accumulator 11.The A mouth of the electro-hydraulic reversing valve 12 and left 901 rodless cavity of master cylinder
Between pipeline be equipped with the first one way sequence valve 801, be equipped between 903 rodless cavity of B mouth and right master cylinder of electro-hydraulic reversing valve 12
The T mouth of second one way sequence valve 802, the electro-hydraulic reversing valve 12 is connected with fuel tank 16, and the oil inlet of oil pump 2 passes through oil filter
1 is connected with fuel tank 16, and the oil pump 2 is connected with the driving of motor 3.
The hydraulic system of the present embodiment further includes binder cylinder, which includes side pressure material cylinder (left side binder cylinder 701, the right side
Side pressure material cylinder 702) and upper binder cylinder (upper left binder cylinder 1401 and upper right binder cylinder 1402), wherein upper left binder cylinder 1401 and the right side
Upper binder cylinder 1402 is connected with the A of electro-hydraulic reversing valve 12 mouth, B mouthfuls respectively, left side binder cylinder 701, right side binder cylinder 702 respectively with
The oil outlet of first one way sequence valve 801 and the second one way sequence valve 802 is connected.Above-mentioned left side binder cylinder 701, right side binder cylinder
702, upper left binder cylinder 1401 and upper right binder cylinder 1402 are Self-resetting spring cylinder, and the supercharging pressure of accumulator 11 is greater than a left side
The spring restoring force of side pressure material cylinder 701 and right side binder cylinder 702.
The oil outlet of the oil pump 2 also oil inlet with the first solenoid directional control valve 6, the second solenoid directional control valve 15 respectively in the present embodiment
Mouthful be connected, the first solenoid directional control valve 6, the second solenoid directional control valve 15 oil outlet be connected with fuel tank 16, and the first electromagnetic switch
The oil-control mouth of valve 6 is connected with the rod chamber of the rod chamber of left master cylinder 901, left secondary cylinder 902, the oil-control mouth of the second solenoid directional control valve 15
It is connected with the rodless cavity of the rod chamber of right master cylinder 903, right secondary cylinder 904.
Embodiment 2
A kind of hydraulic system of Double-station horizontal plate shearing machine of the present embodiment, structure is substantially with embodiment 1, further
, the oil outlet of the oil pump 2 is connected with pressure gauge 4 and pressure meter switch 5.A kind of Double-station horizontal shear of the present embodiment
Machine, including above-mentioned hydraulic system.
A kind of application of Double-station horizontal plate shearing machine of the present embodiment cooperates a whole set of at valve by one group of motor pump
The combination of group, realizes the movement respectively of horizontal plate shearing machine left knife rest and right knife rest, realizes horizontal plate shearing machine to automotive frame
The accurate shearing of the left and right sides, specifically includes the following steps:
Step 1: accumulator repairing
Start motor 3, oil pump 2, YVl obtain it is electric, at this time the control mouth of electromagnetic relief valve 13 disconnect fuel tank rise common overflow
Valve action, the oil liquid that oil pump 3 is confessed is directly entered 11 lower part of accumulator through needle valve 10, when pressure reaches specified size, closes
Needle valve 10 is closed, 11 repairing of accumulator finishes；
Step 2: left cylinder repairing and oil extraction
(a) repairing: YV1, YV4 obtain electric, and the control mouth of electromagnetic relief valve 13, which disconnects fuel tank and plays common overflow valve, at this time makees
With the first solenoid directional control valve 6 connects oil circuit, and the oil liquid that oil pump 3 is confessed is directly entered left master cylinder 901 through the first solenoid directional control valve 6
Rod chamber and left secondary cylinder 902 rodless cavity, realize repairing；
(b) oil extraction: bYV1 power loss, YV4 obtain it is electric, at this time electromagnetic relief valve 13 control mouth connect fuel tank rise unloading valve make
With the first solenoid directional control valve 6 connects oil circuit, and the oil liquid in the rod chamber of left master cylinder 901 and the rodless cavity of left secondary cylinder 902 is through electromagnetism
Overflow valve 13 directly returns to fuel tank；
Step 3: left knife rest is sheared
YV1, YV2 obtain it is electric, at this time the control mouth of electromagnetic relief valve 13 disconnect fuel tank rise common overflow valve action, it is electro-hydraulic to change
Oil circuit is connected to the right position of valve 12, the oil liquid that oil pump 3 is confessed enters upper left binder cylinder 1401, upper left binder through electro-hydraulic reversing valve 12
The movement of 1401 binder of cylinder, pressure continue to increase, and after reaching pressure set by the first one way sequence valve 801, oil liquid is through first
One way sequence valve 801 is directly entered the rodless cavity of left side binder cylinder 701 and left master cylinder 901, since the supercharging pressure of accumulator is big
In the spring restoring force of side pressure material cylinder, therefore after the movement in place of 701 binder of left side binder cylinder, left knife rest carries out shear action again, left
The oil liquid of secondary 902 rod chamber of cylinder is stored in accumulator 11, makees backhaul use；
Step 4: left knife rest backhaul
YV1 power loss, YV2 obtain it is electric, at this time electromagnetic relief valve 13 control mouth connect fuel tank 16 play off-load valve action, knife rest
After completing shear action, the potential energy release that accumulator 11 stores, pressure oil enters 902 rod chamber of left secondary cylinder, and left master cylinder 901 is without bar
The oil liquid of chamber returns to fuel tank 16, tool rest return stroke through the first one way sequence valve 801, electro-hydraulic reversing valve 12 and electromagnetic relief valve 13；This
When left side binder cylinder 701, upper left binder cylinder 1401 pressure oil also return to fuel tank through electro-hydraulic reversing valve 12 and electromagnetic relief valve 13,
Binder cylinder pressure release backhaul；
Step 5: right cylinder repairing and oil extraction
(a) repairing: YV1, YV5 obtain it is electric, at this time 3 control mouth of electromagnetic relief valve disconnect fuel tank rise common overflow valve action,
Second solenoid directional control valve 15 connects oil circuit, and the oil liquid that oil pump 3 is confessed is directly entered right master cylinder 903 through the second solenoid directional control valve 15
The rodless cavity of rod chamber and right secondary cylinder 904, realizes repairing；
(b) oil extraction: YV1 power loss, YV5 obtain electric, the fuel tank off-load valve action of 3 control mouth of electromagnetic relief valve connection at this time, the
Two solenoid directional control valves 15 connect oil circuit, and the oil liquid in 904 rodless cavity of right 903 rod chamber of master cylinder and right secondary cylinder is through electromagnetic relief valve 13
Directly return to fuel tank；
Step 6: right knife rest shearing
YV1, YV3 obtain it is electric, at this time 13 control mouth of electromagnetic relief valve disconnect fuel tank rise common overflow valve action, electro-hydraulic commutation
Oil circuit is connected in 12 left position of valve, and the oil liquid that oil pump 3 is confessed enters upper right binder cylinder 1402, upper right binder cylinder through electro-hydraulic reversing valve 12
The movement of 1402 binders, pressure continues to increase, and after reaching pressure set by the second one way sequence valve 802, oil liquid is single through second
Right side binder cylinder 702 and 903 rodless cavity of right master cylinder, the movement of 702 binder of right side binder cylinder, and the right side are directly entered to sequence valve 802
Side tool post completes shear action, and the oil liquid in right pair 904 rod chamber of cylinder is stored in accumulator 11, makees backhaul use；When electro-hydraulic
After the YV3 work once electrified of reversal valve 12, since left master cylinder is without bar category drain charge state, under the action of by accumulator 11, left knife
Frame elder generation return, and right knife rest will wait upper rights binder cylinder and right side binder cylinder working just to start shearing work after in place, to meet
The sequencing that first backhaul is sheared again.
Step 7: right tool rest return stroke
YV1 power loss, YV3 obtain it is electric, at this time 13 control mouth of electromagnetic relief valve connect fuel tank rise off-load valve action, knife rest completion cut
After cutting movement, the potential energy release that accumulator 11 stores, pressure oil enters right secondary 904 rod chamber of cylinder, in right 903 rodless cavity of master cylinder
Oil liquid returns to fuel tank, tool rest return stroke through the second one way sequence valve 802, electro-hydraulic reversing valve 12 and electromagnetic relief valve 13.Upper right at this time
Binder cylinder 1402, right side binder cylinder 702 pressure oil also return to fuel tank, binder cylinder through electro-hydraulic reversing valve 12 and electromagnetic relief valve 13
Pressure release backhaul.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of hydraulic system of Double-station horizontal plate shearing machine, it is characterised in that: including fuel tank (16), oil pump (2), electro-hydraulic commutation
Valve (12), left master cylinder (901), left secondary cylinder (902), right master cylinder (903) and right secondary cylinder (904), wherein the oil inlet of oil pump (2) with
Fuel tank (16) is connected, on the one hand oil outlet is connected with the P mouth of electro-hydraulic reversing valve (12), on the other hand passes through electromagnetic relief valve
(13) it is connected with fuel tank (16)；The A mouth of the electro-hydraulic reversing valve (12) is connected with the rodless cavity of left master cylinder (901), B mouthfuls and the right side
The rodless cavity of master cylinder (903) is connected, the rod chamber of left master cylinder (901) and right master cylinder (903) respectively correspond with left secondary cylinder (902),
The rodless cavity of right pair cylinder (904) is connected, and left secondary cylinder (902), right secondary cylinder (904) rod chamber with electromagnetic relief valve (13)
Oil inlet is connected.
2. a kind of hydraulic system of Double-station horizontal plate shearing machine according to claim 1, it is characterised in that: described electro-hydraulic to change
The first one way sequence valve (801) are equipped with to the pipeline between the A mouth and left master cylinder (901) rodless cavity of valve (12), electro-hydraulic commutation
The second one way sequence valve (802) are equipped between the B mouth and right master cylinder (903) rodless cavity of valve (12).
3. a kind of hydraulic system of Double-station horizontal plate shearing machine according to claim 2, it is characterised in that: further include binder
Cylinder, the binder cylinder include left side binder cylinder (701), right side binder cylinder (702), upper left binder cylinder (1401) and upper right binder cylinder
(1402), wherein upper left binder cylinder (1401) and upper right binder cylinder (1402) respectively with the A mouth of electro-hydraulic reversing valve (12), B mouthfuls of phases
Even, left side binder cylinder (701), right side binder cylinder (702) respectively with the first one way sequence valve (801) and the second one way sequence valve
(802) oil outlet is connected.
4. a kind of hydraulic system of Double-station horizontal plate shearing machine according to any one of claim 1-3, it is characterised in that:
The oil outlet of the oil pump (2) is also connected with the oil inlet of the first solenoid directional control valve (6), the second solenoid directional control valve (15) respectively,
First solenoid directional control valve (6), the second solenoid directional control valve (15) oil outlet be connected with fuel tank (16), and the first solenoid directional control valve
(6) oil-control mouth is connected with the rodless cavity of the rod chamber of left master cylinder (901), left secondary cylinder (902), the second solenoid directional control valve (15)
Oil-control mouth is connected with the rodless cavity of the rod chamber of right master cylinder (903), right secondary cylinder (904).
5. a kind of hydraulic system of Double-station horizontal plate shearing machine according to any one of claim 1-3, it is characterised in that:
Needle valve is additionally provided on pipeline between the oil outlet and left secondary cylinder (902) of the oil pump (2), right secondary cylinder (904) rod chamber
(10) and accumulator (11).
6. a kind of hydraulic system of Double-station horizontal plate shearing machine according to any one of claim 1-3, it is characterised in that:
The T mouth of the electro-hydraulic reversing valve (12) is connected with fuel tank (16), and the oil inlet of oil pump (2) passes through oil filter (1) and fuel tank
(16) it is connected, and the oil pump (2) is connected with motor (3) driving.
7. a kind of hydraulic system of Double-station horizontal plate shearing machine according to claim 6, it is characterised in that: the oil pump
(2) oil outlet is connected with pressure gauge (4) and pressure meter switch (5).
8. a kind of Double-station horizontal plate shearing machine, it is characterised in that: including hydraulic system of any of claims 1-7.
9. a kind of application of Double-station horizontal plate shearing machine, which is characterized in that be applied to the two aerofoils shearing of automotive frame, tool
Body the following steps are included:
Step 1: accumulator repairing
Start motor (3), oil pump (2), YV1 obtains electric, and the control mouth of electromagnetic relief valve (13) disconnects fuel tank and plays common overflow at this time
Valve action is flowed, the oil liquid that oil pump (3) is confessed is directly entered accumulator (11) lower part through needle valve (10), when pressure reaches specified big
Hour, it closes needle valve (10), accumulator (11) repairing finishes；
Step 2: left cylinder repairing and oil extraction
(a) repairing: YV1, YV4 obtain it is electric, at this time the control mouth of electromagnetic relief valve (13) disconnect fuel tank rise common overflow valve action,
First solenoid directional control valve (6) connects oil circuit, and the oil liquid that oil pump (3) is confessed is directly entered left master cylinder through the first solenoid directional control valve (6)
(901) rodless cavity of rod chamber and left secondary cylinder (902) realizes repairing；
(b) oil extraction: YV1 power loss, YV4 obtain electric, the control mouth connection fuel tank off-load valve action of electromagnetic relief valve (13) at this time, the
One solenoid directional control valve (6) connects oil circuit, and the oil liquid in the rod chamber of left master cylinder (901) and the rodless cavity of left secondary cylinder (902) is through electricity
Magnetic overflow valve (13) directly returns to fuel tank；
Step 3: left knife rest is sheared
YV1, YV2 obtain it is electric, at this time the control mouth of electromagnetic relief valve (13) disconnect fuel tank rise common overflow valve action, electro-hydraulic commutation
Oil circuit is connected in the right position of valve (12), and the oil liquid that oil pump (3) is confessed enters upper left binder cylinder (1401) through electro-hydraulic reversing valve (12), left
Upper binder cylinder (1401) binder movement, pressure continues to increase, after reaching pressure set by the first one way sequence valve (801),
Oil liquid is directly entered the rodless cavity of left side binder cylinder (701) and left master cylinder (901), left side pressure through the first one way sequence valve (801)
The movement of material cylinder (701) binder, and knife rest completes shear action, the oil liquid of left secondary cylinder (902) rod chamber is stored in accumulator (11)
In, make backhaul use；
Step 4: left knife rest backhaul
YV1 power loss, YV2 obtain electric, control mouth connection fuel tank (16) off-load valve action of electromagnetic relief valve (13) at this time, knife rest
After completing shear action, the potential energy release of accumulator (11) storage, pressure oil enters left secondary cylinder (902) rod chamber, left master cylinder
(901) oil liquid of rodless cavity returns to fuel tank through the first one way sequence valve (801), electro-hydraulic reversing valve (12) and electromagnetic relief valve (13)
(16), tool rest return stroke；The pressure oil of left side binder cylinder (701), upper left binder cylinder (1401) is also through electro-hydraulic reversing valve (12) at this time
Fuel tank, binder cylinder pressure release backhaul are returned with electromagnetic relief valve (13)；
Step 5: right cylinder repairing and oil extraction
(a) repairing: YV1, YV5 obtain electric, and electromagnetic relief valve (3) control mouth disconnects fuel tank and plays common overflow valve action at this time, and the
Two solenoid directional control valves (15) connect oil circuit, and the oil liquid that oil pump (3) is confessed is directly entered right master cylinder through the second solenoid directional control valve (15)
(903) rodless cavity of rod chamber and right secondary cylinder (904), realizes repairing；
(b) oil extraction: YV1 power loss, YV5 obtain it is electric, at this time electromagnetic relief valve (3) control mouth connect fuel tank rise off-load valve action, second
Solenoid directional control valve (15) connects oil circuit, and the oil liquid in right master cylinder (903) rod chamber and right secondary cylinder (904) rodless cavity is through electromagnetism overflow
Valve (13) directly returns to fuel tank；
Step 6: right knife rest shearing
YV1, YV3 obtain it is electric, at this time electromagnetic relief valve (13) control mouth disconnect fuel tank rise common overflow valve action, electro-hydraulic reversing valve
(12) oil circuit is connected in left position, and the oil liquid that oil pump (3) is confessed enters upper right binder cylinder (1402), upper right pressure through electro-hydraulic reversing valve (12)
The movement of material cylinder (1402) binder, pressure continues to increase, after reaching pressure set by the second one way sequence valve (802), oil liquid
Right side binder cylinder (702) and right master cylinder (903) rodless cavity, right side binder cylinder are directly entered through the second one way sequence valve (802)
(702) binder acts, and right side knife rest completes shear action, and the oil liquid in right pair cylinder (904) rod chamber is stored in accumulator
(11) in, make backhaul use；
Step 7: right tool rest return stroke
YV1 power loss, YV3 obtain electric, the fuel tank off-load valve action of electromagnetic relief valve (13) control mouth connection at this time, knife rest completion shearing
After movement, the potential energy release of accumulator (11) storage, pressure oil enters right secondary cylinder (904) rod chamber, right master cylinder (903) rodless cavity
Interior oil liquid returns to fuel tank through the second one way sequence valve (802), electro-hydraulic reversing valve (12) and electromagnetic relief valve (13), and knife rest returns
Journey.The pressure oil of upper right binder cylinder (1402), right side binder cylinder (702) is also through electro-hydraulic reversing valve (12) and electromagnetic relief valve at this time
(13) fuel tank, binder cylinder pressure release backhaul are returned.
10. a kind of application of Double-station horizontal plate shearing machine according to claim 9, it is characterised in that: the left side binder
Cylinder (701), right side binder cylinder (702), upper left binder cylinder (1401) and upper right binder cylinder (1402) they are Self-resetting spring cylinder, and
The supercharging pressure of accumulator (11) is greater than the spring restoring force of left side binder cylinder (701) and right side binder cylinder (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413316.8A CN109322881B (en) | 2018-11-23 | 2018-11-23 | Double-station horizontal plate shearing machine and hydraulic system and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413316.8A CN109322881B (en) | 2018-11-23 | 2018-11-23 | Double-station horizontal plate shearing machine and hydraulic system and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322881A true CN109322881A (en) | 2019-02-12 |
| CN109322881B CN109322881B (en) | 2024-05-28 |
Family
ID=65258456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811413316.8A Active CN109322881B (en) | 2018-11-23 | 2018-11-23 | Double-station horizontal plate shearing machine and hydraulic system and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322881B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848474A (en) * | 2019-03-29 | 2019-06-07 | 安徽东海机床制造有限公司 | A kind of horizontal plate shearing machine and its shearing inclination adjustment control method of shearing inclination adjust automatically |
| CN110529443A (en) * | 2019-08-23 | 2019-12-03 | 江苏高德液压机械有限公司 | A kind of hydraulic system of three directions shearing baling press |
| CN112045126A (en) * | 2020-08-19 | 2020-12-08 | 陈礼宏 | Forging equipment and forging method for copper part |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602336A (en) * | 2009-07-10 | 2009-12-16 | 中国第一汽车集团公司无锡柴油机厂 | Hydraulic system of wing opening type box van |
| CN102101196A (en) * | 2010-12-25 | 2011-06-22 | 安徽东海机床制造有限公司 | Horizontal type double-station shearing machine |
| CN105234472A (en) * | 2015-09-22 | 2016-01-13 | 广船国际有限公司 | Hydraulic system of shearing machine |
| CN105665811A (en) * | 2016-04-19 | 2016-06-15 | 黄斌 | Double-station stress adjustable type plate shearing machine |
| CN106180861A (en) * | 2016-08-31 | 2016-12-07 | 安徽省华夏机床制造有限公司 | A kind of lock formula hydraulic system of cutting machine |
| CN206487702U (en) * | 2017-02-14 | 2017-09-12 | 南京麦克菲自动控制有限公司 | A kind of economical accumulator return lock formula plate shearing machine valve group |
| CN108443252A (en) * | 2018-04-23 | 2018-08-24 | 无锡锡锻机床有限公司 | The hydraulic system of multistation punching shear production line |
| CN209100404U (en) * | 2018-11-23 | 2019-07-12 | 安徽东海机床制造有限公司 | A kind of Double-station horizontal plate shearing machine and its hydraulic system |
-
2018
- 2018-11-23 CN CN201811413316.8A patent/CN109322881B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602336A (en) * | 2009-07-10 | 2009-12-16 | 中国第一汽车集团公司无锡柴油机厂 | Hydraulic system of wing opening type box van |
| CN102101196A (en) * | 2010-12-25 | 2011-06-22 | 安徽东海机床制造有限公司 | Horizontal type double-station shearing machine |
| CN105234472A (en) * | 2015-09-22 | 2016-01-13 | 广船国际有限公司 | Hydraulic system of shearing machine |
| CN105665811A (en) * | 2016-04-19 | 2016-06-15 | 黄斌 | Double-station stress adjustable type plate shearing machine |
| CN106180861A (en) * | 2016-08-31 | 2016-12-07 | 安徽省华夏机床制造有限公司 | A kind of lock formula hydraulic system of cutting machine |
| CN206487702U (en) * | 2017-02-14 | 2017-09-12 | 南京麦克菲自动控制有限公司 | A kind of economical accumulator return lock formula plate shearing machine valve group |
| CN108443252A (en) * | 2018-04-23 | 2018-08-24 | 无锡锡锻机床有限公司 | The hydraulic system of multistation punching shear production line |
| CN209100404U (en) * | 2018-11-23 | 2019-07-12 | 安徽东海机床制造有限公司 | A kind of Double-station horizontal plate shearing machine and its hydraulic system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848474A (en) * | 2019-03-29 | 2019-06-07 | 安徽东海机床制造有限公司 | A kind of horizontal plate shearing machine and its shearing inclination adjustment control method of shearing inclination adjust automatically |
| CN110529443A (en) * | 2019-08-23 | 2019-12-03 | 江苏高德液压机械有限公司 | A kind of hydraulic system of three directions shearing baling press |
| CN112045126A (en) * | 2020-08-19 | 2020-12-08 | 陈礼宏 | Forging equipment and forging method for copper part |
| CN112045126B (en) * | 2020-08-19 | 2021-07-23 | 浙江万得凯流体设备科技股份有限公司 | Forging equipment and forging method for copper part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109322881B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109322881A (en) | A kind of Double-station horizontal plate shearing machine and its hydraulic system and application | |
| CN103807239B (en) | A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor | |
| CN201102100Y (en) | Hydraulic pendulum right angle plane shear | |
| CN103801751B (en) | Based on the fully-automatic plate shearing machine hydraulic system that PLC controls | |
| CN109014364A (en) | A kind of hydraulic control shear technique of plate shearing machine | |
| CN102744452B (en) | Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine | |
| CN101691004A (en) | Manufacturing method of integrated square fire-resisting damper valve buckle body molding and rolling forming device thereof | |
| CN209100404U (en) | A kind of Double-station horizontal plate shearing machine and its hydraulic system | |
| CN107939751A (en) | A kind of shearing method of hydraulic plate shears | |
| CN205147434U (en) | Full -automatic multi -functional numerical control plate shearing machine | |
| CN109848474A (en) | A kind of horizontal plate shearing machine and its shearing inclination adjustment control method of shearing inclination adjust automatically | |
| CN204295039U (en) | A kind of large-scale right angle cutter | |
| CN209035550U (en) | A kind of plate shearing machine and its hydraulic system | |
| CN209754126U (en) | Horizontal plate shearing machine with automatic shearing angle adjustment function | |
| CN203448741U (en) | Hydraulic arc plate shearing machine | |
| CN203792608U (en) | Improved structure of automobile interior trim part forging hydraulic press | |
| CN203696090U (en) | Full-automatic plate shearer hydraulic system based on PLC (programmable logic controller) control | |
| CN207454419U (en) | A kind of hydraulic plate shears and its hydraulic system | |
| CN108994367B (en) | Plate shearing machine and hydraulic system thereof | |
| CN103143766A (en) | Waste material separator | |
| CN102825326A (en) | Oblique edge sheet shearer with thick wave shape edge | |
| CN208845453U (en) | A kind of compound plate shearing machine | |
| CN100398239C (en) | Rod material precision shear mould | |
| CN203636073U (en) | Torsion resisting device for plate shearing machine | |
| CN221078223U (en) | Sample preparation equipment capable of simultaneously obtaining multiple metal sheet samples |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 243000 Edge Mold City, Bowang Town, Bowang District, Ma'anshan City, Anhui Province Applicant after: ANHUI DONGHAI MACHINE TOOL Co.,Ltd. Address before: 243000 Edge Grinding Tool City, Bowang Town, Bowang District, Ma'anshan City, Anhui Province Applicant before: ANHUI DONGHAI MACHINE TOOL Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |