CN107061396A - Large-tonnage inertia friction welder fluid power system - Google Patents
Large-tonnage inertia friction welder fluid power system Download PDFInfo
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- CN107061396A CN107061396A CN201710284847.0A CN201710284847A CN107061396A CN 107061396 A CN107061396 A CN 107061396A CN 201710284847 A CN201710284847 A CN 201710284847A CN 107061396 A CN107061396 A CN 107061396A
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- hydraulic fluid
- valve
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- reversing valve
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/125—Rotary tool drive mechanism
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- 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
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- 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)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of large-tonnage inertia friction welder fluid power system, including low pressure and mass flow vane pump (4), high-pressure small flow plunger pumps (7), first two-position four-way electro-hydraulic reversing valve (13.1), second two-position four-way electro-hydraulic reversing valve (13.2), 3-position 4-way electro-hydraulic reversing valve (14), 3rd two-position four-way electro-hydraulic reversing valve (16), main shaft workpiece oil cylinder (18.1), tailstock workpiece oil cylinder (18.2) and upset oil cylinder (18.3).The present invention is greatly reduced installed power, saves energy consumption；Also achieve the quick acting of main shaft workpiece oil cylinder simultaneously and clamp solid and reliable, tailstock workpiece oil cylinder quick acting and clamp firm stable and upset oil cylinder low pressure fast forward through, high-pressure work feeding, the action such as high-voltage high-speed upset and low pressure rapid backward, system acting process is automatically controlled by computer+PLC program, with structural principle is simple, the reliable advantage of having stable behavior.
Description
Technical field
The present invention relates to large-tonnage inertia friction welder fluid power system.
Background technology
The development of jumbo jet engine rotation part inertia friction welder, realizes that inertia friction Welding is applied
Basis, by developing large-tonnage flywheel friction welding machine host and fluid power system, could finally carry out engine rotation part
High-quality high-efficiency welding, the design of aero-engine modular construction is become feasible, and ensures engine rotation part workmanship
With the guarantee of safe operation.And existing large-tonnage inertia friction welder fluid power system foreign countries are substantially and supplied using single pump
Oily mode is, it is necessary to high-pressure high-flow plunger pump, installed power is big, cost is high, and the country currently there are no technique, and by grinding
Low pressure and mass flow processed, high-pressure low-flow large-tonnage inertia friction welder fluid power system, can just make technology from scratch, realize
Technology upgrading.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of installed power is small, cost is low, energy-saving, performance is stable
Reliable large-tonnage inertia friction welder fluid power system, to overcome the technical deficiency that prior art is present.The present invention is used
Following technical scheme：A kind of large-tonnage inertia friction welder fluid power system, including low pressure and mass flow vane pump 4, high pressure
Low discharge plunger pump 7, first two-position four-way electro-hydraulic reversing valve 13.1, second two-position four-way electro-hydraulic reversing valve 13.2, three
Four-way electro-hydraulic reversing valve 14, the 3rd two-position four-way electro-hydraulic reversing valve 16, main shaft workpiece oil cylinder 18.1, tailstock workpiece oil cylinder 18.2
And upset oil cylinder 18.3.
The lower end suction inlet connection self-sealing suction inlet oil filter 1.1 of low pressure and mass flow vane pump 4, low pressure and mass flow vane pump
The positive hydraulic fluid port, the oil inlet of electromagnetic relief valve 6.1, pressure gauge 8.1 of 4 upper end outlet and tubular type check valve 9.1 connect in order
It is connected together；The positive hydraulic fluid port of plate-type non-return valve 10.1, the positive hydraulic fluid port of plate-type non-return valve 10.2, tubular type check valve 9.2 are just
Together with being linked in sequence with the reverse hydraulic fluid port of tubular type check valve 9.1 to hydraulic fluid port.
The lower end suction inlet connection self-sealing suction inlet oil filter 1.2 of high-pressure small flow plunger pumps 7, high-pressure small flow plunger pumps
The positive hydraulic fluid port, the oil inlet of electromagnetic relief valve 6.2, pressure gauge 8.2 of 7 upper end outlet and tubular type check valve 9.2 connect in order
It is connected together；The bottom hydraulic fluid port of throttle orifice 11.1, the bottom hydraulic fluid port of throttle orifice 11.2, the oil inlet of proportioning valve 12, tubular type are unidirectional
Together with the reverse hydraulic fluid port of valve 9.3 is linked in sequence with the reverse hydraulic fluid port of tubular type check valve 9.2.
First hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1, the reverse hydraulic fluid port of plate-type non-return valve 10.1 and
The top hydraulic fluid port of throttle orifice 11.1 is linked in sequence together, and the second hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1 connects
Connect the oil inlet of return oil filter 2, the 3rd hydraulic fluid port connection main shaft workpiece oil cylinder of first two-position four-way electro-hydraulic reversing valve 13.1
18.1 A1 hydraulic fluid ports, the 4th hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1 connects the oil inlet of pressure-reducing valve 15.1.
First hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve 13.2 connects the oil inlet of return oil filter 2, the
Second hydraulic fluid port of two two-position four-way electro-hydraulic reversing valves 13.2, the reverse hydraulic fluid port of plate-type non-return valve 10.2 and throttle orifice 11.2 it is upper
Portion's hydraulic fluid port is linked in sequence together, the 3rd hydraulic fluid port connection pressure-reducing valve 15.2 of second two-position four-way electro-hydraulic reversing valve 13.2
Oil inlet, the B2 hydraulic fluid ports of the 4th hydraulic fluid port connection tailstock workpiece oil cylinder 18.2 of second two-position four-way electro-hydraulic reversing valve 13.2.
First hydraulic fluid port of the 3-position 4-way electro-hydraulic reversing valve 14 connects the oil inlet of return oil filter 2,3-position 4-way electricity
Together with the second hydraulic fluid port, the oil-out of proportioning valve 12 of liquid reversal valve 14 are linked in sequence with pressure gauge 8.3,3-position 4-way is electro-hydraulic
The oil-out of 3rd hydraulic fluid port of reversal valve 14, the second hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve 16 and choke valve 17 is by suitable
Sequence links together, the B3 hydraulic fluid ports of the 4th hydraulic fluid port connection upset oil cylinder 18.3 of 3-position 4-way electro-hydraulic reversing valve 14.
In the specific implementation of the present invention, first two-position four-way is electro-hydraulic changes for the connection of the A1 hydraulic fluid ports of main shaft workpiece oil cylinder 18.1
To the 3rd hydraulic fluid port of valve 13.1, B1 hydraulic fluid ports, the oil-out of pressure-reducing valve 15.1 and the pressure gauge 8.4 of main shaft workpiece oil cylinder 18.1 are by suitable
Sequence links together.
In the embodiment of the present invention, A2 hydraulic fluid ports, the oil-out of pressure-reducing valve 15.2 of tailstock workpiece oil cylinder 18.2
Together with being linked in sequence with pressure gauge 8.5, second two-position four-way is electro-hydraulic changes for the connection of the B2 hydraulic fluid ports of tailstock workpiece oil cylinder 18.2
To the 4th hydraulic fluid port of valve 13.2.
In the specific implementation of the present invention, the A3 hydraulic fluid ports of upset oil cylinder 18.3, the 3rd two-position four-way electro-hydraulic reversing valve 16
The 4th hydraulic fluid port be linked in sequence with the oil inlet of choke valve 17 together with, the B3 hydraulic fluid ports of upset oil cylinder 18.3 connection 3-position 4-way
4th hydraulic fluid port of electro-hydraulic reversing valve 14, the first hydraulic fluid port closing of the 3rd two-position four-way electro-hydraulic reversing valve 16, the 3rd two four
Lead to the 3rd hydraulic fluid port of the second hydraulic fluid port, the oil inlet of choke valve 17 and 3-position 4-way electro-hydraulic reversing valve 14 of electro-hydraulic reversing valve 16 by suitable
Sequence links together, the 3rd hydraulic fluid port closing of the 3rd two-position four-way electro-hydraulic reversing valve 16.
Operation principle of the present invention
1. manually booting vane pump 4 and plunger pump 7, the electromagnet of electromagnetic relief valve 6.1 and the electromagnet of electromagnetic relief valve 6.2 are equal
Powered, vane pump 4 and plunger pump 7 set up pressure.
2. the clamping button of main shaft workpiece oil cylinder 18.1 is manually pressed by, first valve element of two-position four-way electro-hydraulic reversing valve 13.1
A is pushed into valve pocket, vane pump 4 and the double pump of plunger pump 7 while fuel feeding, Quick holding part, clamping pressure is increased to setting for vane pump 4
During definite value, vane pump 4 can not be again to oil circuit fuel feeding, and this is that only plunger pump 7, individually to the fuel feeding of main shaft workpiece oil cylinder 18.1, is realized
Main shaft firm workpiece clamping.
3. the clamping button of tailstock workpiece oil cylinder 18.2 is manually pressed by, second valve element of two-position four-way electro-hydraulic reversing valve 13.2
A is pushed into valve pocket, vane pump 4 and the double pump of plunger pump 7 while fuel feeding, Quick holding part, clamping pressure is increased to setting for vane pump 4
During definite value, vane pump 4 can not be again to oil circuit fuel feeding, and this is that only plunger pump 7, individually to the fuel feeding of tailstock workpiece oil cylinder 18.2, is realized
Tailstock firm workpiece clamping.
4. completing after above-mentioned steps, it is manually pressed by welding button, system enters auto-programming process：Upset oil cylinder 18.3 is low
When pressure is fast forwarded through, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is promoted to be in valve pocket, low pressure and mass flow vane pump 4 and high pressure
The double pump of low discharge plunger pump 7 simultaneously fuel feeding, after proportioning valve 12 by the second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the 4th oil
Mouthful enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, fourth hydraulic fluid port of the A3 hydraulic fluid ports discharge through the 3rd two-position four-way electro-hydraulic reversing valve 16,
Second hydraulic fluid port flows back to fuel tank；Operating position is reached, the valve element of 3-position 4-way electro-hydraulic reversing valve 14 returns middle position, oil cylinder stop motion；Arrive
Start high-pressure work feeding after setting time, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is in valve pocket, the 3rd two-position four-way
The valve element a of electro-hydraulic reversing valve 16 is in valve pocket, valve closure, and the independent fuel feeding of high-pressure small flow plunger pumps 7 is after proportioning valve 12 by three
The second hydraulic fluid port, the 4th hydraulic fluid port of position four-way electro-hydraulic reversing valve 14 enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, A3 hydraulic fluid ports discharge warp knuckle
Stream valve 17 flows back to fuel tank；High-pressure work switchs to high-voltage high-speed upset, the He of high-pressure small flow plunger pumps 7 when being fed into displacement setting value
The state of 3-position 4-way electro-hydraulic reversing valve 14 is constant, and fuel feeding is oily by the second of 3-position 4-way electro-hydraulic reversing valve 14 after proportioning valve 12
Mouthful, the 4th hydraulic fluid port enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, the discharge of A3 hydraulic fluid ports through the 3rd two-position four-way electro-hydraulic reversing valve 16
4th hydraulic fluid port, the second hydraulic fluid port flow back to fuel tank, complete compressing process；Then first valve element b of two-position four-way electro-hydraulic reversing valve 13.1
In valve pocket, low pressure and mass flow vane pump 4 and the double pump of high-pressure small flow plunger pumps 7 are while fuel feeding, main shaft workpiece oil cylinder 18.1 is fast
Speed unclamps workpiece；The low pressure rapid backward of upset oil cylinder 18.3, promotes the valve element a of 3-position 4-way electro-hydraulic reversing valve 14 to be in valve pocket,
Low pressure and mass flow vane pump 4 and the double pump of high-pressure small flow plunger pumps 7 are while fuel feeding, is changed after proportioning valve 12 by 3-position 4-way is electro-hydraulic
After to the second hydraulic fluid port, the second hydraulic fluid port of the 3rd hydraulic fluid port and the 3rd two-position four-way electro-hydraulic reversing valve 16, the 4th hydraulic fluid port of valve 14 by
A3 enters, fourth hydraulic fluid port, first hydraulic fluid port of the B3 discharges through 3-position 4-way electro-hydraulic reversing valve 14 flow back to fuel tank, and rapid backward is to initial
Position, then the valve element of 3-position 4-way electro-hydraulic reversing valve 14 return middle position, upset oil cylinder 18.3 is parked in initial position；Now second two
The valve element b of position four-way electro-hydraulic reversing valve 13.2 is in valve pocket, and tailstock workpiece oil cylinder 18.2 unclamps workpiece, now takes out flywheel friction welding
Workpiece is connect, and at this moment, large-tonnage inertia friction welder has completed a working cycle process.
The technology of the present invention effect
Using above-mentioned technical proposal, the present invention only passes through 1 low pressure and mass flow vane pump, 1 high-pressure small flow plunger pumps
The combination of double pump fuel feeding and 1 3-position 4-way electro-hydraulic reversing valve, 3 two-position four-way electro-hydraulic reversing valves, 5 check valves, 2 electromagnetism
Overflow valve, 1 proportioning valve, 1 choke valve, 2 pressure-reducing valves and 3 oil cylinders are achieved that large-tonnage inertia friction welder hydraulic pressure drives
Dynamic system；Fluid power system is to realize low pressure and mass flow vane pump and high-pressure small flow plunger pumps double pump simultaneously to same oil
The technology of road fuel feeding, passes through check valve and the Proper Match of throttle orifice, it is to avoid the interfering of two oil circuits, and plays two oil pumps
Respective advantage, hydraulic system installed power 45kW, compared to the hydraulic system installed power 150kW using 1 high-pressure plunger pump, greatly
Width reduction installed power, saving energy consumption；The quick acting of main shaft workpiece oil cylinder is also achieved simultaneously and clamps solid and reliable, tailstock
The quick acting of workpiece oil cylinder and clamping firm stable and upset oil cylinder low pressure are fast forwarded through, high-pressure work is fed, high-voltage high-speed
Upset and low pressure rapid backward etc. are acted, and system acting process is automatically controlled by computer+PLC program, with structural principle letter
Single, the reliable advantage of having stable behavior.
Brief description of the drawings
Fig. 1 is hydraulic system principle figure of the invention.
Embodiment
As shown in figure 1, the large-tonnage inertia friction welder fluid power system of the present invention, including low pressure and mass flow vane pump
4th, high-pressure small flow plunger pumps 7, first two-position four-way electro-hydraulic reversing valve 13.1, second two-position four-way electro-hydraulic reversing valve
13.2,3-position 4-way electro-hydraulic reversing valve 14, the 3rd two-position four-way electro-hydraulic reversing valve 16, main shaft workpiece oil cylinder 18.1, tailstock work
Part oil cylinder 18.2 and upset oil cylinder 18.3.
Low pressure and mass flow vane pump 4 is constant displacement pump, is driven by motor 5.1, and pressure is set by electromagnetic relief valve 6.1, setting
Value 3MPa；The lower end suction inlet connection self-sealing suction inlet oil filter 1.1 of low pressure and mass flow vane pump 4, low pressure and mass flow vane pump 4 it is upper
Positive hydraulic fluid port, the oil inlet of electromagnetic relief valve 6.1, the pressure gauge 8.1 for bringing out mouth and tubular type check valve 9.1 are linked in sequence one
Rise；The positive hydraulic fluid port of plate-type non-return valve 10.1, the positive hydraulic fluid port of plate-type non-return valve 10.2, the positive hydraulic fluid port of tubular type check valve 9.2
Together with being linked in sequence with the reverse hydraulic fluid port of tubular type check valve 9.1.
High-pressure small flow plunger pumps 7 are variable pumps, are driven by motor 5.2, and pressure is set by electromagnetic relief valve 6.2, setting
Value 22MPa；The lower end suction inlet connection self-sealing suction inlet oil filter 1.2 of high-pressure small flow plunger pumps 7, high-pressure small flow plunger pumps 7
Positive hydraulic fluid port, the oil inlet of electromagnetic relief valve 6.2, the pressure gauge 8.2 of upper end outlet and tubular type check valve 9.2 are linked in sequence
Together；The bottom hydraulic fluid port of throttle orifice 11.1, the bottom hydraulic fluid port of throttle orifice 11.2, the oil inlet of proportioning valve 12, tubular type check valve 9.3
Reverse hydraulic fluid port be linked in sequence with the reverse hydraulic fluid port of tubular type check valve 9.2 together with.
First hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1, the reverse hydraulic fluid port of plate-type non-return valve 10.1 and throttling
The top hydraulic fluid port in hole 11.1 is linked in sequence together, and the second hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1 is connected back to
The oil inlet of oily oil filter 2, the 3rd hydraulic fluid port connection main shaft workpiece oil cylinder 18.1 of first two-position four-way electro-hydraulic reversing valve 13.1
A1 hydraulic fluid ports, the 4th hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1 connects the oil inlet of pressure-reducing valve 15.1.
First hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve 13.2 connects the oil inlet of return oil filter 2, second
The top oil of second hydraulic fluid port of two-position four-way electro-hydraulic reversing valve 13.2, the reverse hydraulic fluid port of plate-type non-return valve 10.2 and throttle orifice 11.2
Mouth is linked in sequence together, and the 3rd hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve 13.2 connects the oil-feed of pressure-reducing valve 15.2
Mouthful, the B2 hydraulic fluid ports of the 4th hydraulic fluid port connection tailstock workpiece oil cylinder 18.2 of second two-position four-way electro-hydraulic reversing valve 13.2.
First hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14 connects the oil inlet of return oil filter 2, and 3-position 4-way is electro-hydraulic to be changed
Together with being linked in sequence with pressure gauge 8.3 to the second hydraulic fluid port of valve 14, the oil-out of proportioning valve 12, the electro-hydraulic commutation of 3-position 4-way
The oil-out of 3rd hydraulic fluid port of valve 14, the second hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve 16 and choke valve 17 connects in order
It is connected together, the B3 hydraulic fluid ports of the 4th hydraulic fluid port connection upset oil cylinder 18.3 of 3-position 4-way electro-hydraulic reversing valve 14.
The first hydraulic fluid port closing of 3rd two-position four-way electro-hydraulic reversing valve 16, the 3rd two-position four-way electro-hydraulic reversing valve 16
Together with second hydraulic fluid port, the oil inlet of choke valve 17 are linked in sequence with the 3rd hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the
The 3rd hydraulic fluid port closing of three two-position four-way electro-hydraulic reversing valves 16, the 4th hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve 16,
Together with the oil-out of choke valve 17 is linked in sequence with the A3 hydraulic fluid ports of upset oil cylinder 18.3.
Second hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1, second two-position four-way electro-hydraulic reversing valve 13.2
First hydraulic fluid port, the first hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the oil-out of electromagnetic relief valve 6.1, electromagnetic relief valve 6.2
Together with oil-out is linked in sequence with the oil inlet of return oil filter 2, the oil-out of return oil filter 2 flows into fuel tank 3, self-styled
Formula suction inlet oil filter 1.1 and self-sealing suction inlet oil filter 1.2 are connected on fuel tank 3, and fuel tank 3 uses closing form, and both sides are pre-
Hand inspection mouthful is stayed, circulated filter system can ensure the cleannes of system media, enable a system to normally work on request.
First two-position four-way electro-hydraulic reversing valve 13.1, second two-position four-way electro-hydraulic reversing valve 13.2,3-position 4-way are changed
Two valve elements a, b and four hydraulic fluid ports are respectively provided with to valve 14 and the 3rd two-position four-way electro-hydraulic reversing valve 16, as promotion valve element a to valve
During chamber, realize the first hydraulic fluid port and the 4th hydraulic fluid port insertion, the second hydraulic fluid port and the 3rd hydraulic fluid port insertion；Opened when promoting valve element b to valve pocket
When, realize the first hydraulic fluid port and the 3rd hydraulic fluid port insertion, the second hydraulic fluid port and the 4th hydraulic fluid port insertion.
The A1 hydraulic fluid ports of main shaft workpiece oil cylinder 18.1 connect the 3rd hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve 13.1, main
Together with B1 hydraulic fluid ports, the oil-out of pressure-reducing valve 15.1 of shaft-like work oil cylinder 18.1 are linked in sequence with pressure gauge 8.4；Reset condition
Valve pocket is in for first valve element b of two-position four-way electro-hydraulic reversing valve 13.1, main shaft workpiece oil cylinder 18.1 is in releasing orientation, works as master
When shaft-like work oil cylinder 18.1 clamps workpiece, the valve element a of first two-position four-way electro-hydraulic reversing valve 13.1 is promoted to be in valve pocket, low pressure
Fuel feeding passes through first two-position four-way electro-hydraulic reversing valve 13.1 simultaneously for mass flow blade pump 4 and the double pump of high-pressure small flow plunger pumps 7
The first hydraulic fluid port, the 4th hydraulic fluid port, after pressure-reducing valve 15.1 by B1 enter main shaft workpiece oil cylinder 18.1, piston is quickly moved to the left folder
Clamping of workpieces, load is increased, make vane pump 4 can not fuel feeding, now only high-pressure small flow plunger pumps 7 are individually to main shaft workpiece oil cylinder
18.1 fuel feeding, realize Workpiece clamping.
A2 hydraulic fluid ports, the oil-out of pressure-reducing valve 15.2 and the pressure gauge 8.5 of tailstock workpiece oil cylinder 18.2 are linked in sequence one
Rise, the B2 hydraulic fluid ports of tailstock workpiece oil cylinder 18.2 connect the 4th hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve 13.2；Original shape
State is that second valve element b of two-position four-way electro-hydraulic reversing valve 13.2 is in valve pocket, and tailstock workpiece oil cylinder 18.2 is in releasing orientation, when
When tailstock workpiece oil cylinder 18.2 clamps workpiece, the valve element a of second two-position four-way electro-hydraulic reversing valve 13.2 is promoted to be in valve pocket, it is low
Fuel feeding passes through second two-position four-way electro-hydraulic reversing valve simultaneously for pressure mass flow blade pump 4 and the double pump of high-pressure small flow plunger pumps 7
13.2 the second hydraulic fluid port, the 3rd hydraulic fluid port, enter tailstock workpiece oil cylinder 18.2, piston quickly moves right after pressure-reducing valve 15.2 by A2
Dynamic to clamp workpiece, load is increased, make vane pump 4 can not fuel feeding, now only high-pressure small flow plunger pumps 7 are individually to tailstock workpiece
The fuel feeding of oil cylinder 18.2, realizes Workpiece clamping.
The A3 hydraulic fluid ports of upset oil cylinder 18.3, the 4th hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve 16 and choke valve 17
Oil inlet is linked in sequence together, the 4th oil of the B3 hydraulic fluid ports connection 3-position 4-way electro-hydraulic reversing valve 14 of upset oil cylinder 18.3
Mouthful；Welding machine is in initial position, and the valve element reset condition of 3-position 4-way electro-hydraulic reversing valve 14 is in middle position；When the low pressure of upset oil cylinder 18.3 is fast
When speed is advanced, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is promoted to be in valve pocket, low pressure and mass flow vane pump 4 and high pressure rill
The double pump of plunger pump 7 fuel feeding simultaneously is measured, is entered after proportioning valve 12 by the second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the 4th hydraulic fluid port
Enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, A3 hydraulic fluid ports and discharge the 4th hydraulic fluid port through the 3rd two-position four-way electro-hydraulic reversing valve 16, second
Hydraulic fluid port flows back to fuel tank；Operating position is reached, the valve element of 3-position 4-way electro-hydraulic reversing valve 14 returns middle position, oil cylinder stop motion；Then it is high
Work feed is pressed, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is in valve pocket, the valve of the 3rd two-position four-way electro-hydraulic reversing valve 16
Core a is in valve pocket, valve closure, and the independent fuel feeding of high-pressure small flow plunger pumps 7 is after proportioning valve 12 by 3-position 4-way electro-hydraulic reversing valve
14 the second hydraulic fluid port, the 4th hydraulic fluid port enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, the discharge of A3 hydraulic fluid ports and flow back to fuel tank through choke valve 17；It is high
Switch to high-voltage high-speed upset, high-pressure small flow plunger pumps 7 and the electro-hydraulic commutation of 3-position 4-way when pressing work feed to displacement setting value
The state of valve 14 is constant, and fuel feeding is entered after proportioning valve 12 by the second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the 4th hydraulic fluid port to be pushed up
Forge B3 hydraulic fluid ports, fourth hydraulic fluid port, second hydraulic fluid port of the discharge of A3 hydraulic fluid ports through the 3rd two-position four-way electro-hydraulic reversing valve 16 of oil cylinder 18.3
Fuel tank is flowed back to, compressing process is completed；Low pressure fast feed and high pressure upsetting force are adjusted by proportioning valve 12 by control program, microcomputer
Closed-loop control；The low pressure rapid backward of upset oil cylinder 18.3, promotes the valve element a of 3-position 4-way electro-hydraulic reversing valve 14 to be in valve pocket, low
Mass flow blade pump 4 and the double pump of high-pressure small flow plunger pumps 7 fuel feeding simultaneously are pressed, by the electro-hydraulic commutation of 3-position 4-way after proportioning valve 12
By A3 after second hydraulic fluid port of valve 14, the second hydraulic fluid port of the 3rd hydraulic fluid port and the 3rd two-position four-way electro-hydraulic reversing valve 16, the 4th hydraulic fluid port
Fuel tank, rapid backward to initial bit are flowed back into fourth hydraulic fluid port, first hydraulic fluid port of, the B3 discharge through 3-position 4-way electro-hydraulic reversing valve 14
Put, then the valve element of 3-position 4-way electro-hydraulic reversing valve 14 returns middle position, upset oil cylinder 18.3 is parked in initial position.
During hydraulic work system, the electromagnet of electromagnetic relief valve 6.1 is powered, and vane pump 4 sets up pressure, electromagnetic relief valve 6.2
Electromagnet is powered, and plunger pump 7 sets up pressure, during off working state, the electromagnet of electromagnetic relief valve 6.1 and the equal dead electricity of 6.2 electromagnet,
Hydraulic system off-load, electromagnetic relief valve is that motor no-load can be controlled to start, also act it is energy-saving and reduce fluid hair
The effect of heat.
It is exactly the large-tonnage inertia friction welder fluid power system of the present invention above.The course of work of whole system is such as
Under：
1. manually booting vane pump 4 and plunger pump 7, the electromagnet of electromagnetic relief valve 6.1 and the electromagnet of electromagnetic relief valve 6.2 are equal
Powered, vane pump 4 and plunger pump 7 set up pressure.
2. the clamping button of main shaft workpiece oil cylinder 18.1 is manually pressed by, first valve element of two-position four-way electro-hydraulic reversing valve 13.1
A is pushed into valve pocket, vane pump 4 and the double pump of plunger pump 7 while fuel feeding, Quick holding part, clamping pressure is increased to setting for vane pump 4
During definite value, vane pump 4 can not be again to oil circuit fuel feeding, and this is that only plunger pump 7, individually to the fuel feeding of main shaft workpiece oil cylinder 18.1, is realized
Main shaft firm workpiece clamping.
3. the clamping button of tailstock workpiece oil cylinder 18.2 is manually pressed by, second valve element of two-position four-way electro-hydraulic reversing valve 13.2
A is pushed into valve pocket, vane pump 4 and the double pump of plunger pump 7 while fuel feeding, Quick holding part, clamping pressure is increased to setting for vane pump 4
During definite value, vane pump 4 can not be again to oil circuit fuel feeding, and this is that only plunger pump 7, individually to the fuel feeding of tailstock workpiece oil cylinder 18.2, is realized
Tailstock firm workpiece clamping.
4. completing after above-mentioned steps, it is manually pressed by welding button, system enters auto-programming process：Upset oil cylinder 18.3 is low
When pressure is fast forwarded through, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is promoted to be in valve pocket, low pressure and mass flow vane pump 4 and high pressure
The double pump of low discharge plunger pump 7 simultaneously fuel feeding, after proportioning valve 12 by the second hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve 14, the 4th oil
Mouthful enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, fourth hydraulic fluid port of the A3 hydraulic fluid ports discharge through the 3rd two-position four-way electro-hydraulic reversing valve 16,
Second hydraulic fluid port flows back to fuel tank；Operating position is reached, the valve element of 3-position 4-way electro-hydraulic reversing valve 14 returns middle position, oil cylinder stop motion；Arrive
Start high-pressure work feeding after setting time, the valve element b of 3-position 4-way electro-hydraulic reversing valve 14 is in valve pocket, the 3rd two-position four-way
The valve element a of electro-hydraulic reversing valve 16 is in valve pocket, valve closure, and the independent fuel feeding of high-pressure small flow plunger pumps 7 is after proportioning valve 12 by three
The second hydraulic fluid port, the 4th hydraulic fluid port of position four-way electro-hydraulic reversing valve 14 enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, A3 hydraulic fluid ports discharge warp knuckle
Stream valve 17 flows back to fuel tank；High-pressure work switchs to high-voltage high-speed upset, the He of high-pressure small flow plunger pumps 7 when being fed into displacement setting value
The state of 3-position 4-way electro-hydraulic reversing valve 14 is constant, and fuel feeding is oily by the second of 3-position 4-way electro-hydraulic reversing valve 14 after proportioning valve 12
Mouthful, the 4th hydraulic fluid port enter the B3 hydraulic fluid ports of upset oil cylinder 18.3, the discharge of A3 hydraulic fluid ports through the 3rd two-position four-way electro-hydraulic reversing valve 16
4th hydraulic fluid port, the second hydraulic fluid port flow back to fuel tank, complete compressing process；Then first valve element b of two-position four-way electro-hydraulic reversing valve 13.1
In valve pocket, low pressure and mass flow vane pump 4 and the double pump of high-pressure small flow plunger pumps 7 are while fuel feeding, main shaft workpiece oil cylinder 18.1 is fast
Speed unclamps workpiece；The low pressure rapid backward of upset oil cylinder 18.3, promotes the valve element a of 3-position 4-way electro-hydraulic reversing valve 14 to be in valve pocket,
Low pressure and mass flow vane pump 4 and the double pump of high-pressure small flow plunger pumps 7 are while fuel feeding, is changed after proportioning valve 12 by 3-position 4-way is electro-hydraulic
After to the second hydraulic fluid port, the second hydraulic fluid port of the 3rd hydraulic fluid port and the 3rd two-position four-way electro-hydraulic reversing valve 16, the 4th hydraulic fluid port of valve 14 by
A3 enters, fourth hydraulic fluid port, first hydraulic fluid port of the B3 discharges through 3-position 4-way electro-hydraulic reversing valve 14 flow back to fuel tank, and rapid backward is to initial
Position, then the valve element of 3-position 4-way electro-hydraulic reversing valve 14 return middle position, upset oil cylinder 18.3 is parked in initial position；Now second two
The valve element b of position four-way electro-hydraulic reversing valve 13.2 is in valve pocket, and tailstock workpiece oil cylinder 18.2 unclamps workpiece, now takes out flywheel friction welding
Workpiece is connect, and at this moment, large-tonnage inertia friction welder has completed a working cycle process.
More than example be intended merely to the explanation present invention, and be not used as limitation of the invention, as long as in the present invention
Spirit in, change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (4)
1. a kind of large-tonnage inertia friction welder fluid power system, it is characterized in that：Including low pressure and mass flow vane pump (4), height
Press low discharge plunger pump (7), first two-position four-way electro-hydraulic reversing valve (13.1), second two-position four-way electro-hydraulic reversing valve
(13.2), 3-position 4-way electro-hydraulic reversing valve (14), the 3rd two-position four-way electro-hydraulic reversing valve (16), main shaft workpiece oil cylinder
(18.1), tailstock workpiece oil cylinder (18.2) and upset oil cylinder (18.3)；Low pressure and mass flow vane pump (4) lower end suction inlet connection
Self-sealing suction inlet oil filter (1.1), the upper end outlet of low pressure and mass flow vane pump (4) and the forward direction oil of tubular type check valve (9.1)
Mouth, the oil inlet of electromagnetic relief valve (6.1), pressure gauge (8.1) are linked in sequence together；The forward direction of plate-type non-return valve (10.1)
Hydraulic fluid port, the positive hydraulic fluid port of plate-type non-return valve (10.2), the positive hydraulic fluid port of tubular type check valve (9.2) and tubular type check valve (9.1)
Reverse hydraulic fluid port is linked in sequence together；High-pressure small flow plunger pumps (7) lower end suction inlet connection self-sealing suction inlet oil filter
(1.2), positive hydraulic fluid port, the electromagnetic relief valve of the upper end outlet of high-pressure small flow plunger pumps (7) and tubular type check valve (9.2)
(6.2) oil inlet, pressure gauge (8.2) is linked in sequence together；Bottom hydraulic fluid port, the throttle orifice (11.2) of throttle orifice (11.1)
Bottom hydraulic fluid port, the oil inlet of proportioning valve (12), the reverse hydraulic fluid port of tubular type check valve (9.3) and tubular type check valve (9.2) it is anti-
It is linked in sequence together to hydraulic fluid port；It is first hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve (13.1), board-like unidirectional
Together with the reverse hydraulic fluid port of valve (10.1) is linked in sequence with the top hydraulic fluid port of throttle orifice (11.1), first two-position four-way is electro-hydraulic
Second hydraulic fluid port of reversal valve (13.1) connects the oil inlet of return oil filter 2, first two-position four-way electro-hydraulic reversing valve (13.1)
The 3rd hydraulic fluid port connection main shaft workpiece oil cylinder 18.1 A1 hydraulic fluid ports, the 4th oil of first two-position four-way electro-hydraulic reversing valve (13.1)
The oil inlet of mouth connection pressure-reducing valve (15.1)；First hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve (13.2) is connected back to
The oil inlet of oily oil filter (2), the second hydraulic fluid port, the plate-type non-return valve (10.2) of second two-position four-way electro-hydraulic reversing valve (13.2)
Reverse hydraulic fluid port be linked in sequence with the top hydraulic fluid port of throttle orifice (11.2) together with, second two-position four-way electro-hydraulic reversing valve
(13.2) oil inlet of the 3rd hydraulic fluid port connection pressure-reducing valve (15.2), the 4th of second two-position four-way electro-hydraulic reversing valve (13.2) the
The B2 hydraulic fluid ports of hydraulic fluid port connection tailstock workpiece oil cylinder (18.2)；First hydraulic fluid port of the 3-position 4-way electro-hydraulic reversing valve (14) is connected back to
The oil inlet of oily oil filter (2), the second hydraulic fluid port, the oil-out and pressure of proportioning valve (12) of 3-position 4-way electro-hydraulic reversing valve (14)
Table (8.3) is linked in sequence together, and the 3rd hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve (14), the 3rd two-position four-way is electro-hydraulic changes
Together with being linked in sequence with the oil-out of choke valve (17) to the second hydraulic fluid port of valve (16), 3-position 4-way electro-hydraulic reversing valve (14)
The 4th hydraulic fluid port connection upset oil cylinder (18.3) B3 hydraulic fluid ports.
2. large-tonnage inertia friction welder fluid power system according to claim 1, it is characterized in that：Main shaft workpiece oil cylinder
(18.1) A1 hydraulic fluid ports connect the 3rd hydraulic fluid port of first two-position four-way electro-hydraulic reversing valve (13.1), main shaft workpiece oil cylinder (18.1)
B1 hydraulic fluid ports, together with the oil-out of pressure-reducing valve (15.1) is linked in sequence with pressure gauge (8.4).
3. large-tonnage inertia friction welder fluid power system according to claim 1, it is characterized in that：Tailstock workpiece oil cylinder
(18.2) together with A2 hydraulic fluid ports, the oil-out of pressure-reducing valve (15.2) is linked in sequence with pressure gauge (8.5), tailstock workpiece oil cylinder
(18.2) B2 hydraulic fluid ports connect the 4th hydraulic fluid port of second two-position four-way electro-hydraulic reversing valve (13.2).
4. large-tonnage inertia friction welder fluid power system according to claim 1, it is characterized in that：Upset oil cylinder
(18.3) oil inlet of A3 hydraulic fluid ports, the 4th hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve (16) and choke valve 17 is in order
Link together, the 4th hydraulic fluid port of the B3 hydraulic fluid ports connection 3-position 4-way electro-hydraulic reversing valve (14) of upset oil cylinder (18.3), the 3rd
The first hydraulic fluid port closing of two-position four-way electro-hydraulic reversing valve (16), the second hydraulic fluid port of the 3rd two-position four-way electro-hydraulic reversing valve (16),
Together with the oil inlet of choke valve (17) is linked in sequence with the 3rd hydraulic fluid port of 3-position 4-way electro-hydraulic reversing valve (14), the 3rd two
The 3rd hydraulic fluid port closing of position four-way electro-hydraulic reversing valve (16).
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| CN201710284847.0A CN107061396A (en) | 2017-04-27 | 2017-04-27 | Large-tonnage inertia friction welder fluid power system |
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