CN107344424A - The hydraulic control system of two point high-speed blanking press - Google Patents

The hydraulic control system of two point high-speed blanking press Download PDF

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Publication number
CN107344424A
CN107344424A CN201710249378.9A CN201710249378A CN107344424A CN 107344424 A CN107344424 A CN 107344424A CN 201710249378 A CN201710249378 A CN 201710249378A CN 107344424 A CN107344424 A CN 107344424A
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China
Prior art keywords
oil
valve
hole
outlet
pressure
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Granted
Application number
CN201710249378.9A
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Chinese (zh)
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CN107344424B (en
Inventor
仲君
黄建民
严静芸
王路远
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Jiangsu Yangli Group Co Ltd
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Jiangsu Yangli Group Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/16—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064—Counterbalancing means for movable press elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/166—Electrical control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The present invention relates to a kind of hydraulic control system of two point high-speed blanking press, connecting rod small-end bearing has been respectively coated by the rod journal of bent axle, the force connecting rod of driving sliding block is respectively articulated with connecting rod small-end bearing；Two rod journals are respectively arranged on the left side and the right side support axle journal, support copper sheathing has been respectively coated by support axle journal, support copper sheathing is located in Curved shaft support seat, being provided between bent axle periphery and connecting rod small-end bearing and the inwall for supporting copper sheathing makes the high pressure oil film of bent axle suspension work, and high pressure oil film is controlled by main shaft dynamic pressure system；The outlet of constant flow paddle pump is connected with two-stage high voltage precision filter in turn in main shaft dynamic pressure system, and to connecting rod small-end bearing and supports copper sheathing fuel feeding through check valve, board-like choke valve, oil circuit controller；The flow that oil circuit controller accurately distributes each oil-out makes the oil pressure in each copper sheathing equal.The Press Control System can make bent axle be in suspended state when working, and forcing press is had overshoot function, the line of weakness that can accurately process on pop can cover plate.

Description

The hydraulic control system of two point high-speed blanking press
Technical field
The present invention relates to a kind of two point high-speed blanking press, more particularly to a kind of hydraulic control system of two point high-speed blanking press System, belongs to machine tool technology field.
Background technology
In recent years, mental package industry is increasing to the requirement of forcing press, and pop can is machined for example with pressure Cover plate, pop can cover plate are provided with drinking mouth, and drinking mouth is closed using closure plate, and one end of closure plate is connected with draw ring, is closed Line of weakness is provided between the periphery of piece and cover board body.When drinking, line of weakness is torn by draw ring, exposes drinking mouth.Carve The depth requirements of trace line are very accurate, usually 0.15mm, and the too deep cover plate that penetrates readily through of line of weakness causes product rejection, line of weakness Cross shallow, user is difficult to tear line of weakness, or even causes draw ring to be pulled away from cover plate completely still can not to open closure plate.
Traditional forcing press includes fuselage body, bent axle and sliding block, and bent axle is provided with rod journal, the left and right two of rod journal Side is respectively equipped with support axle journal, and bearing shell is usually mounted with rod journal and support axle journal, between bearing shell and crankshaft journal between Gap is smaller, usually 0.02 ~ 0.03mm, and bearing shell is provided with oil groove to be lubricated to bent axle and to export heat；The pressure When the sliding block of machine is located at bottom dead centre, the high continuation of mould can not be adjusted downwards, it is difficult to accurately stamp out indentation on pop can cover plate Line.
The content of the invention
It is an object of the present invention to overcome problems of the prior art, there is provided a kind of liquid of two point high-speed blanking press Pressure control system, bent axle can be made to be in suspended state when working, make forcing press that there is overshoot function.
To solve above technical problem, a kind of hydraulic control system of two point high-speed blanking press of the invention, including fuselage Body, bent axle and sliding block, two rod journals are arranged with the bent axle, connecting rod copper has been respectively coated by two rod journals Set, has been respectively articulated with force connecting rod on the connecting rod small-end bearing, and the upper end of the lower ends of the two force connecting rods respectively with guide pillar is mutually cut with scissors Connect, the sliding block is connected to below guide pillar；Two rod journals are respectively arranged on the left side and the right side support axle journal, the support shaft Be respectively coated by support copper sheathing on neck, the support copper sheathing be located in Curved shaft support seat, bent axle periphery and the connecting rod small-end bearing and The high pressure oil film for making bent axle suspension work is provided between the inwall of support copper sheathing, the high pressure oil film is controlled by main shaft dynamic pressure system System；The main shaft dynamic pressure system includes constant flow paddle pump B3, and constant flow paddle pump B3 suction inlet passes through the L3 of oil absorption filter three and master Fuel tank T1 connections, constant flow paddle pump B3 outlet are connected with the LH3 of high voltage precision filter three and high voltage precision filter four in turn LH4, the LH4 of high voltage precision filter four outlet are connected with the D3 of check valve three entrance, the D3 of check valve three outlet and board-like section The J3 of valve three entrance connection is flowed, the board-like J3 of choke valve three outlet is connected with oil circuit controller YK entrance, the oil circuit control Device YK is provided with six road oil-outs and supports copper sheathing fuel feeding with two connecting rod small-end bearings of the bent axle periphery and four respectively；The oil circuit The flow that controller YK accurately distributes each oil-out makes each connecting rod small-end bearing equal with the oil pressure in copper sheathing is supported；Constant flow paddle pump B3 Outlet be also associated with the F3 of overflow valve three, the F3 of overflow valve three outlet is connected with main fuel tank T1；The D3 of check valve three outlet also connects It is connected to accumulator AC.
Relative to prior art, the present invention achieves following beneficial effect：During crank rotation, two rod journals of bent axle The upper end of two force connecting rods is driven to move in a circle simultaneously, the lower end of two force connecting rods drives guide pillar along guiding by link pin Seat slides up and down, and guide pillar band movable slider pumps.When processing pop can cover plate, upper mould is arranged under sliding block Side, lower mould are arranged on the workbench below sliding block, and for forcing press before work, hydraulic oil not yet builds pressure, now according to die-filling height Degree carries out the bottom dead centre regulation of sliding block；For traditional forcing press, the bottom dead centre of sliding block is the lowest order that sliding block can reach Put, be unfavorable for accurately being cut out the line of weakness on closure plate periphery on pop can cover plate.When the forcing press of the present invention is devoted oneself to work, Lubricating oil in main fuel tank T1 enters constant flow paddle pump B3 through the L3 of oil absorption filter three, and constant flow paddle pump B3 is as bent axle dynamic pressure Power source, the F3 of overflow valve three by bent axle dynamic pressure system pressure in control in 2.5MPa, by the LH3 of high voltage precision filter three and height The filtering of the LH4 two-stages high voltage precision of accurate filter four is pressed, then is controlled through the D3 of the check valve three and J3 of board-like choke valve three into oil circuit Device YK, accumulator AC bottom are hydraulic oil, and top is compressed nitrogen, and the stable work of buffering can be played in pressure fluctuation With；Oil circuit controller YK carries out automatic and accurate distribution to the flow of six road oil-outs, makes in each connecting rod small-end bearing and support copper sheathing Oil pressure is equal, bent axle is worked in stable high pressure oil film low suspension, forcing press is had an overshoot function, i.e., sliding block under original extremely On the basis of point, the thickness of mould one high pressure oil film of high adjustment downwards, thickness and the pop can cover plate of high pressure oil film can be sealed The line of weakness deep equality of piece is closed, the suitable line of weakness of depth so just can be accurately cut out on pop can cover plate.
As the improvement of the present invention, the lower end of the guide pillar is connected with otic placode respectively, the otic placode lower section and overload protection The top of the piston centre post of oil cylinder is connected, and the cylinder body of the overcurrent protection oil cylinder is fixed on the sliding block, and the overload is protected Shield oil cylinder is controlled by overload protective device；The overload protective device includes the B1 of plunger pump one, and the B1 of plunger pump one suction inlet passes through The L1 of oil absorption filter one is connected with main fuel tank T1, and the B1 of plunger pump one outlet is connected with the D1 of check valve one, and the D1's of check valve one goes out Mouth is connected with the LH1 of high voltage precision filter one, the LH1 of high voltage precision filter one outlet all the way by the board-like J1 of choke valve one with The K1 of pilot operated compound relief valve one entrance connection, the K1 of pilot operated compound relief valve one outlet are connected with the YV1 of solenoid directional control valve one P mouths, The YV1 of solenoid directional control valve one A mouths are connected with the D5 of check valve five entrance, the D5 of check valve five outlet respectively with overcurrent protection oil cylinder 16 oil inlet and hydraulic control unloader valve X1 entrance are connected, and overcurrent protection oil cylinder 16 is single-action plunger piston cylinder；High voltage precision filters The LH1 of device one outlet another way is connected by the board-like J2 of choke valve two with the YV2 of solenoid directional control valve two P mouths, solenoid directional control valve two YV2 A mouths are connected with hydraulic control unloader valve X1 hydraulic control mouth；The YV1 of the solenoid directional control valve one and YV2 of solenoid directional control valve two is two four The outlet of port valve, the YV1 of solenoid directional control valve one and the YV2 of solenoid directional control valve two T mouths and hydraulic control unloader valve X1 with oil return box T2 phases Even；The B1 of plunger pump one outlet is also associated with the F1 of overflow valve one, and the F1 of overflow valve one outlet is connected with main fuel tank T1.Main fuel tank T1 In hydraulic oil enter the power source of plunger pump one B1, the B1 of plunger pump one as overload protection, overflow through the L1 of oil absorption filter one The F1 of valve one is controlling the pressure of overload protective device in 13MPa, by the D1 of the check valve one and LH1 of high voltage precision filter one essences After close filtering, the oil circuit of overload protective device is divided into two, all the way through the board-like J1 of choke valve one, the K1 of pilot operated compound relief valve one, electricity For the YV1 of the magnetic reversal valve one and D5 of check valve five to the fuel feeding of overcurrent protection oil cylinder 16, overcurrent protection oil cylinder is single-action plunger piston cylinder；It is another Road is through the hydraulic control confession oil of the board-like J2 of choke valve two and the YV2 of solenoid directional control valve two to hydraulic control unloader valve X1, and hydraulic control unloader valve X1 is simultaneously It is associated on the oil inlet of overcurrent protection oil cylinder 16, is individually controlled by the YV2 of solenoid directional control valve two, sets pressure as 10.5 MPa；Pressure When power machine works, guide pillar drives otic placode to pump, and otic placode is driven by the piston centre post of overcurrent protection oil cylinder and slided Block is synchronized with the movement；When forcing press overloads, the release of overcurrent protection oil cylinder 16, prevent from damaging high-accuracy tank die point processed.
Improved as of the invention further, the piston centre post lower, outer perimeter is set with swivel nut, under the swivel nut End face is supported on the top surface step of the overcurrent protection oil cylinder piston, and piston centre post is fixedly connected with the top of the swivel nut Gear；The periphery of the swivel nut is provided with mode locking cylinder 19, and the mode locking cylinder includes locked mode cylinder sleeve and locking piston, and the locked mode is lived The inwall of plug is screwed in the periphery of the swivel nut, the bottom of the locked mode cylinder sleeve and the cylinder of the overcurrent protection oil cylinder by screw thread Body is fixedly connected, and the mode locking cylinder is controlled by clamping system；The clamping system includes the B2 of plunger pump two, the B2 of plunger pump two suction Mouth is connected by the L2 of oil absorption filter two with main fuel tank T1, and the B2 of plunger pump two outlet is connected with the D2 of check valve two entrance, single Outlet to the D2 of valve two is connected with the LH2 of high voltage precision filter two entrance, the LH2 of high voltage precision filter two outlet and electromagnetism The YV3 of reversal valve three P mouths are connected, and the YV3 of solenoid directional control valve three A mouths pass through the locked mode of one-way throttle valve DJ1 and mode locking cylinder 19 oil Chamber is connected；The YV3 of solenoid directional control valve three is two-position four-way valve, and the YV3 of solenoid directional control valve three T mouths are connected with main fuel tank T1；Plunger pump Two B2 outlet is also associated with the F2 of overflow valve two, and the F2 of overflow valve two outlet is connected with main fuel tank T1.
When adjusting bottom dead center of slider, locked mode oil pocket is first in depressurization phase, is driven by the rotation of piston centre stud wheel Swivel nut synchronous axial system, it is motionless in locking piston because the outer wall of swivel nut and the inwall of locking piston are mutually spun by screw thread In the case of, the rotation of swivel nut makes swivel nut and piston centre stud wheel raise or decline, and then makes overcurrent protection oil cylinder piston and work The height of plug newel changes, and bottom dead center of slider is highly adjusted.After bottom dead center of slider is highly adjusted, main oil Hydraulic oil in case T1 enters the power of plunger pump two B2, the B2 of plunger pump two as clamping system by the L2 of oil absorption filter two Source, the F2 of overflow valve two by the Stress control of clamping system in 26MPa, by the D2 of check valve two and the LH2 of high voltage precision filter two Secondary filter after, then through the YV3 of solenoid directional control valve three and one-way throttle valve DJ1 enter mode locking cylinder 19 locked mode oil pocket, locked mode oil Locking piston is pressed on swivel nut by chamber after building pressure, and screw thread between the two is killed, and bottom dead center of slider is fixed.Pressure During machine normal work, mode locking cylinder is in locking state；When forcing press overloads, mode locking cylinder drain charge.
As further improvement of the invention, the lower section at left and right sides of the otic placode is separately installed with hoist cylinder, institute The cylinder body for stating hoist cylinder is separately fixed on the fuselage body, the piston rod upper end of the hoist cylinder respectively with it is described Otic placode is fixedly connected, and the hoist cylinder 20 is controlled by lifting system；The lifting system includes and high voltage precision filter The connected K2 of pilot operated compound relief valve two in two LH2 outlets, the K2 of pilot operated compound relief valve two outlet and the YV4 of solenoid directional control valve four P mouths It is connected, the YV4 of solenoid directional control valve four is the three-position four-way valve that Median Function is Y types, the YV4 of solenoid directional control valve four T mouths and main fuel tank T1 is connected, and the YV4 of solenoid directional control valve four A mouths pass through hydraulic lock S1 and Double throttle check valve SJ1 and the epicoele of hoist cylinder 20 It is connected, the cavity of resorption phase that the YV4 of solenoid directional control valve four B mouths pass through hydraulic lock S1 and Double throttle check valve SJ1 and hoist cylinder 20 Even.During forcing press normal work, mode locking cylinder is in locking state, and hoist cylinder is also at locking state；When forcing press overloads When, mode locking cylinder drain charge, the pressure oil of the LH2 of high voltage precision filter two outlets passes sequentially through the YV4 of solenoid directional control valve four, hydraulic lock S1, Double throttle check valve SJ1 enter the cavity of resorption of hoist cylinder, the hydraulic oil backflow of hoist cylinder epicoele, hoist cylinder Automatically begin to be lifted.
As further improvement of the invention, oil return box T2 top and main fuel tank T1 top are interconnected, oil return box Screen pack is provided with T2, circulating pump B4 suction inlet is connected by the L4 of oil absorption filter four with space after oil return box T2 filter, circulation Pump B4 outlet is connected by the D4 of check valve four and the LH5 of high voltage precision filter five with main fuel tank T1；It is provided with and adds in main fuel tank T1 Hot device HT, main fuel tank T1 side are provided with oil cooling machine CL.The system is to assemble hydraulic and lubricating system in a fuel tank, The advanced oil return box T2 of oil return of system, after magnet magnetically attractive and filter screen filtration, into filter after space, then through oil absorption filter four L4 enters circulating pump B4, and when main fuel tank T1 is in low oil level, circulating pump B4 extracts the oil return after filtering out, through the D4 of check valve four With the oil temperature in the LH5 of high voltage precision filter five feedings main fuel tank T1, main fuel tank T1 by heater HT and external oil cooling machine CL It is adjusted, heater HT and oil cooling machine CL start and stop is controlled by temperature sensor.
As further improvement of the invention, the locked mode cylinder sleeve is located at the periphery of the locking piston, and the locked mode is lived Locking piston gland is fixed with the top of plug, the outer rim of the locking piston gland, which is fixed at the top of the locked mode cylinder sleeve, makes lock The locked mode oil pocket of sealing is formed between mould piston and the locked mode cylinder sleeve；Also include the high manual rocker of regulation mould, it is described manual The front end of rocking bar is provided with square tenon termination, and the follower head of the manual rocker is provided with bevel gear one, the bevel gear one and umbrella Gear two is meshed, and the bevel gear two is arranged on the upper end of gear shaft one, roller gear and the right side of the lower end of gear shaft one The idler gear one of side is meshed, and the right side of idler gear one is meshed with the piston centre stud wheel positioned at right side；In described Between the rear side of gear one be meshed with the roller gear of the lower end of gear shaft two, the roller gear of the lower end of gear shaft two and left side Idler gear two engage, idler gear two is meshed with positioned at the piston centre stud wheel in left side；The gear shaft two it is upper End is provided with bevel gear three, and the bevel gear three is meshed with bevel gear four, and the bevel gear four is arranged on the one of encoder axle End, the other end of the encoder axle are provided with encoder.By the square tenon termination of spanner rotation manual rocker front end head, manually Rocking bar driving bevel gear one rotates, and bevel gear one drives bevel gear two and gear shaft one to rotate, the Cylinder Gear of the lower end of gear shaft one Wheel drives the idler gear one on right side to rotate, and piston centre stud wheel of the driving of idler gear one positioned at right side rotates；In simultaneously Between roller gear of the gear one also with the lower end of movable gear shaft two rotate, the roller gear of the lower end of gear shaft two drives the centre in left side Gear two rotates in same direction with idler gear one, the piston centre stud wheel in the driving of idler gear two left side and the piston centre on right side Stud wheel keeps synchronous axial system in the same direction；The piston centre stud wheel of so left and right sides synchronously rotates in same direction, and makes bottom dead center of slider Adjusted；The thinner thickness of piston centre stud wheel, it is easy to when adjusting bottom dead center of slider along idler gear one and center tooth Wheel two is rotated while axially adjustable position.The roller gear of the lower end of gear shaft two drives what the idler gear two in left side rotated Meanwhile the bevel gear three of the upper end of gear shaft two drives the synchronous axial system of bevel gear four, bevel gear four drives encoder axle synchronous axial system, The adjustment parameter of bottom dead center of slider is measured and is supplied to control system by encoder.After bottom dead center of slider adjusts, locked mode oil Chamber builds pressure, and locking piston is locked by swivel nut.
As further improvement of the invention, the both sides port of the connecting rod small-end bearing and the support copper sheathing is separately installed with The inwall of high-pressure seal ring, the connecting rod small-end bearing and the support copper sheathing is respectively equipped with copper sheathing high-voltage oil cavity and circumferentially The outer wall of copper sheathing inner oil sump, the connecting rod small-end bearing and the support copper sheathing is respectively equipped with the outer oil of the copper sheathing of multiple tracks circumferentially Groove, the copper sheathing high-voltage oil cavity and copper sheathing inner oil sump are communicated by multiple copper sheathing fuel feed holes with the copper sheathing outer oil sump respectively.Copper Cover fuel feed hole rapidly to convey the hydraulic oil of copper sheathing outer oil sump to copper sheathing inner oil sump, copper sheathing inner oil sump can be defeated rapidly by hydraulic oil Deliver to connecting rod small-end bearing and support the circle of copper sheathing inwall, it is ensured that the thickness of high pressure oil film is uniform；High-pressure seal ring is by hydraulic oil It is enclosed in connecting rod small-end bearing and supports the inner chamber of copper sheathing, it is ensured that can be formed in the inner chamber of connecting rod small-end bearing and support copper sheathing can makes song The floating high pressure oil film of axle suspension；The copper sheathing high-voltage oil cavity and multiple tracks copper sheathing outer oil sump of connecting rod small-end bearing and support copper sheathing inwall provide larger Oil storage space, improve high pressure oil film stability.
As further improvement of the invention, one end of the bent axle is provided with the central hole of the crankshaft extended into bent axle, institute Central hole of the crankshaft and the support axle journal coaxial line are stated, close to the rod journal of central hole of the crankshaft and the circumference of two support axle journals On be respectively equipped with pressure sensor mounting hole, the bottom hole of the pressure sensor mounting hole is respectively equipped with and the central hole of the crankshaft The sensor lead hole to connect, each pressure sensor mounting hole are being connected with pressure sensor transit joint, institute respectively State the pressure sensor for being connected with measurement bent axle periphery high pressure oil film pressure in pressure sensor transit joint respectively, the pressure Transition is provided between the termination of sensor transit joint facing sensing device fairlead and the bottom of the pressure sensor mounting hole Joint sealing circle；Unthreaded hole, the screw thread reduced successively provided with diameter from inside to outside along the axis of the pressure sensor transit joint Hole and pressure oil pass through hole, and the pressure oil passes through outer surface of the hole face to bent axle；The pressure sensor includes being connected as a single entity Pressure oil signal port, thread segment, cylindrical section and hex head segment, the pressure oil signal port be inserted in the pressure oil pass through hole In, the screwed hole of the thread segment of the pressure sensor and the pressure sensor transit joint mutually spins, the pressure sensing The cylindrical section of device is located in the unthreaded hole of the pressure sensor transit joint, and the hex head segment of the pressure sensor is towards described Between the unthreaded hole step of sensor lead hole, the step of the pressure sensor cylindrical section and the pressure sensor transit joint Provided with sensor sealing ring.When central hole of the crankshaft causes crank rotation with support axle journal coaxial line, the axis of central hole of the crankshaft is protected Hold motionless, pressure sensor can be screwed in by the hex head segment of rotation pressure sensor by pressure sensor transit joint In, sensor sealing ring realizes the sealing between pressure sensor and transit joint, between transit joint and sensor mounting hole Realized and sealed by transit joint sealing ring, then pressure sensor transit joint is screwed in pressure sensor mounting hole, pressed Force snesor transit joint leaves surplus outside bent axle, last finishing is carried out to bent axle after the completion of to be installed, to ensure to press Force snesor transit joint is exposed at the part of crankshaft surface and the flush with outer surface of bent axle, and the lead of pressure sensor is from sensor Fairlead and central hole of the crankshaft are drawn.Pressure sensor is arranged in the counterbore of bent axle, pressure of the pressure oil from transit joint The current hole of oil enters the pressure oil signal port of pressure sensor, and pressure sensor is able to measure the pressure of bent axle periphery high pressure oil film Power, data are accurately and reliably.
As further improvement of the invention, on the circumference of the rod journal of central hole of the crankshaft and two support axle journals Temperature sensor fixing hole is further respectively had, the bottom hole of the temperature sensor fixing hole is respectively equipped with and the central hole of the crankshaft The sensor lead hole to connect, each temperature sensor fixing hole are being connected with temperature sensor transit joint, institute respectively State the temperature sensor for being connected with measurement bent axle periphery hydraulic oil film temperature in temperature sensor transit joint respectively, the temperature Transition is provided between the termination of sensor transit joint facing sensing device fairlead and the bottom of the temperature sensor fixing hole Joint sealing circle；The unthreaded hole and screw thread reduced successively provided with diameter from inside to outside along the axis of the temperature sensor transit joint Hole, the bottom of screwed hole are provided with the blind plate of closing, and the thickness of the blind plate is 3.5 ~ 4mm, appearance of the blind plate towards bent axle Face；The temperature sensor includes temperature-sensitive head, thread segment, cylindrical section and the hex head segment being connected as a single entity, the temperature sensor Temperature-sensitive head be resisted against on the inwall of the blind plate, the thread segment of the temperature sensor and the temperature sensor transit joint Screwed hole mutually spin, the cylindrical section of the temperature sensor is located in the unthreaded hole of the temperature sensor transit joint, described The hex head segment of temperature sensor is towards the sensor lead hole, step and the temperature of the temperature sensor cylindrical section Sensor sealing ring is provided between the unthreaded hole step of sensor transit joint.Can be with by the hex head segment for rotating temperature sensor Temperature sensor is screwed in temperature sensor transit joint, sensor sealing ring realizes temperature sensor and temperature sensor Sealing between transit joint, realized between temperature sensor transit joint and sensor mounting hole by transit joint sealing ring Sealing；Because temperature sensor can not bear too high pressure, between the temperature of the temperature-sensitive head of temperature sensor by measuring blind plate Connect to obtain the temperature of high pressure oil film, because blind plate thickness is only 3.5 ~ 4mm, thermal resistance is small, after heat transfer reaches balance, TEMP The temperature of the very close bent axle Radinal pressure oil of temperature measured by device.
As further improvement of the invention, the external end head of the central hole of the crankshaft is provided with multi-channel circuit slip ring, institute The lead for stating pressure sensor or temperature sensor is each passed through sensor mounting hole and central hole of the crankshaft and multichannel electricity Each stator lead interface of road slip ring inner termination is connected.Because bent axle wants high-speed rotation, pressure sensor or temperature at work Spending the lead of sensor includes power line and signal wire each stator lead interface phase with multi-channel circuit slip ring inner termination respectively Connection, each rotor leading wire of multi-channel circuit slip ring external end head are connected with control system respectively, and such bent axle runs at high speed, no The collection and transmission of each sensor signal can be influenceed, the lead of each sensor will not be wound.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to Illustrate to use, be not used to the limitation present invention.
Fig. 1 is the front view of two point high-speed blanking press of the present invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 1 stereogram.
Fig. 4 is that Fig. 1 removes the front view after fuselage body.
Fig. 5 is Fig. 4 stereogram.
Fig. 6 is the sectional view of two point high-speed blanking press transmission system of the present invention.
Fig. 7 is the enlarged drawing at A positions in Fig. 6.
Fig. 8 is the schematic diagram of the hydraulic control system of two point high-speed blanking press of the present invention.
Fig. 9 is the stereogram of connecting rod small-end bearing or support copper sheathing in the present invention.
Figure 10 is the front view of press ram bottom dead centre height adjustment mechanism.
Figure 11 is Figure 10 top view.
Figure 12 is Figure 10 left view.
Figure 13 is Figure 10 stereogram one.
Figure 14 is Figure 10 stereogram two.
Figure 15 is the stereogram of bent axle in the present invention.
Figure 16 is the scheme of installation of pressure sensor in bent axle.
Figure 17 is the scheme of installation of temperature sensor in bent axle.
In figure：1. fuselage body；2. main motor；3. bent axle；3a. rod journals；3b. supports axle journal；3c. central hole of the crankshaft； 3d1. pressure sensor mounting holes；3d2. temperature sensor fixing hole；3e. sensor lead holes；4. connecting rod small-end bearing；4a. copper sheathings High-voltage oil cavity；4b. copper sheathing inner oil sumps；4c. copper sheathing outer oil sumps；4d. copper sheathing fuel feed holes；5. support copper sheathing；6. dynamic balance weight；7. fly Wheel；8. clutch；9. sliding block；10. workbench；11. Curved shaft support seat；12. exert a force connecting rod；12a. link pins；13. guide pillar；14. Guide holder；15. otic placode；16. overcurrent protection oil cylinder；16a. overcurrent protection oil cylinder pistons；16a1. piston centre post；17. swivel nut； 18. piston centre stud wheel；19. mode locking cylinder；19a. locked mode cylinder sleeves；19b. locking pistons；19c. locking piston glands；19d. locks Moulding oil chamber；20. hoist cylinder；21. manual rocker；21a. side tenon termination；22. bevel gear one；23. bevel gear two；24. gear Axle one；25. idler gear one；26. gear shaft two；27. idler gear two；28. bevel gear three；29. bevel gear four；30. coding Device；31a. pressure sensor transit joints；31a1. pressure oils pass through hole；31b. temperature sensor transit joints；31b1. blind plates； 32. multi-channel circuit slip ring；33a. pressure sensors；33a1. pressure oil signal port；33b. temperature sensors；33b1. temperature-sensitives Head；34. transit joint sealing ring；35. sensor sealing ring.
T1. main fuel tank；T2. oil return box；B1. plunger pump one；B2. plunger pump two；B3. constant flow paddle pump；B4. circulating pump； L1. oil absorption filter one；L2. oil absorption filter two；L3. oil absorption filter three；L4. oil absorption filter four；LH1. high voltage precision Filter one；LH2. high voltage precision filter two；LH3. high voltage precision filter three；LH4. high voltage precision filter four；LH5. High voltage precision filter five；YV1. solenoid directional control valve one；YV2. solenoid directional control valve two；YV3. solenoid directional control valve three；YV4. electromagnetism Reversal valve four；F1. overflow valve one；F2. overflow valve two；F3. overflow valve three；F4. overflow valve four；K1. pilot operated compound relief valve one； K2. pilot operated compound relief valve two；X1. hydraulic control unloader valve；D1. check valve one；D2. check valve two；D3. check valve three；D4. check valve Four；D5. check valve five；J1. board-like choke valve one；J2. board-like choke valve two；J3. board-like choke valve three；DJ1. one-way throttle Valve；S1. hydraulic lock；SJ1. Double throttle check valve；HT. heater；CL. oil cooling machine.
Embodiment
As shown in Figures 1 to 8, two point high-speed blanking press of the invention includes fuselage body 1, bent axle 3 and sliding block 9, on bent axle 3 It is arranged with two rod journals 3a, two rod journal 3a and has been respectively coated by connecting rod small-end bearing 4, is respectively articulated with connecting rod small-end bearing 4 There is force connecting rod 12, the lower end of two force connecting rods 12 is hinged by link pin 12a and guide pillar 13 upper end respectively, and guide pillar 13 divides It Wei Yu can not slide up and down in guide holder 14 and along guide holder 14, guide holder 14 is separately fixed on fuselage body 1, under guide pillar 13 End is connected with otic placode 15 respectively, and sliding block 9 is connected to the lower section of otic placode 15；Two rod journal 3a's is respectively arranged on the left side and the right side support shaft Support copper sheathing 5 is respectively coated by neck 3b, support axle journal 3b, support copper sheathing 5 is located in Curved shaft support seat 11, Curved shaft support seat 11 It is separately fixed on fuselage body 1, the middle part of bent axle 3 is provided with dynamic balance weight 6, and one end of bent axle 3 extends and is provided with laterally Flywheel 7, flywheel 7 are connected by the driving wheel of V belt and main motor 2, and main motor 2 is arranged on the top of fuselage body 1； The outside of flywheel 7 is provided with the clutch 8 that control flywheel 7 drives bent axle 3.
Main motor 2 drives flywheel 7 to rotate by V belt, and when clutch 8 is in bonding state, flywheel 7 drives song Axle 3 rotates, and two rod journal 3a of bent axle 3 drive the upper end of two force connecting rods 12 to move in a circle simultaneously, and two forces connect The lower end of bar 12 drives guide pillar 13 to be slided up and down along guide holder 14 by link pin 12a, and guide pillar 13 drives otic placode 15 and then driven Sliding block 9 pumps.Due to carrying out 2 points of synchronous forces using two force connecting rods 12, as long as the power of the bottom surface of sliding block 9 Unbalance loading will not occur among 2 points, and pressure is uniform, can carry out multistation shaping with supporting larger work top, improve Production efficiency.
Being provided between the periphery of bent axle 3 and connecting rod small-end bearing 4 and the inwall for supporting copper sheathing 5 makes the hydraulic oil of bent axle suspension work Film.High pressure oil film is controlled by main shaft dynamic pressure system；Main shaft dynamic pressure system includes constant flow paddle pump B3, constant flow paddle pump B3 suction inlet It is connected by the L3 of oil absorption filter three with main fuel tank T1, constant flow paddle pump B3 outlet is connected with high voltage precision filter three in turn The LH3 and LH4 of high voltage precision filter four, the LH4 of high voltage precision filter four outlet are connected with the D3 of check valve three entrance, unidirectionally The D3 of valve three outlet is connected with the board-like J3 of choke valve three entrance, the board-like J3 of choke valve three outlet and entering for oil circuit controller YK Mouth connection, oil circuit controller YK are provided with six road oil-outs and supplied respectively with two connecting rod small-end bearings of bent axle periphery and four support copper sheathings Oil；The flow that oil circuit controller YK accurately distributes each oil-out makes each connecting rod small-end bearing equal with the oil pressure in copper sheathing is supported；It is quantitative Vane pump B3 outlet is also associated with the F3 of overflow valve three, and the F3 of overflow valve three outlet is connected with main fuel tank T1；The D3's of check valve three Outlet is also associated with accumulator AC.
As shown in figure 9, the both sides port of connecting rod small-end bearing 4 and support copper sheathing 5 is separately installed with high-pressure seal ring, connecting rod small-end bearing 4 and the inwall of support copper sheathing 5 be respectively equipped with copper sheathing high-voltage oil cavity 4a and copper sheathing inner oil sump 4b circumferentially, connecting rod small-end bearing 4 It is respectively equipped with the outer wall of support copper sheathing 5 in copper sheathing the outer oil sump 4c, copper sheathing high-voltage oil cavity 4a and copper sheathing of multiple tracks circumferentially Oil groove 4b is communicated by multiple copper sheathing fuel feed hole 4d with copper sheathing outer oil sump 4c respectively.Copper sheathing fuel feed hole 4d is rapidly by copper sheathing outer oil sump 4c hydraulic oil conveys to copper sheathing inner oil sump 4b, and hydraulic oil can be delivered to connecting rod small-end bearing 4 and branch rapidly by copper sheathing inner oil sump 4b Support the circle of the inwall of copper sheathing 5, it is ensured that the thickness of high pressure oil film is uniform；Hydraulic oil is enclosed in connecting rod small-end bearing 4 by high-pressure seal ring With the inner chamber of support copper sheathing 5, it is ensured that the height that bent axle 3 can be made to suspend can be formed in the inner chamber of connecting rod small-end bearing 4 and support copper sheathing 5 Press oil film；The copper sheathing high-voltage oil cavity 4a and multiple tracks copper sheathing outer oil sump 4c of connecting rod small-end bearing 4 and the support inwall of copper sheathing 5 provide larger storage Oily space, improve the stability of high pressure oil film.
When processing pop can cover plate, upper mould is arranged on to the lower section of sliding block 9, lower mould is arranged on the workbench of the lower section of sliding block 9 On 10, for forcing press before work, hydraulic oil not yet builds pressure, and the bottom dead centre that sliding block 9 is now carried out according to height of packing compact is adjusted；For Traditional forcing press, the bottom dead centre of sliding block 9 are the extreme lower position that sliding block 9 can reach, and are unfavorable on pop can cover plate smart Really it is cut out the line of weakness on closure plate periphery.When the forcing press of the present invention is devoted oneself to work, the lubricating oil in main fuel tank T1 is through oil suction The L3 of filter three enters constant flow paddle pump B3, power sources of the constant flow paddle pump B3 as bent axle dynamic pressure, and the F3 of overflow valve three is by bent axle Dynamic pressure system pressure is being controlled in 2.5MPa, high by the LH3 of high voltage precision filter three and the LH4 two-stages of high voltage precision filter four Secondary filter is pressed, then enters oil circuit controller YK through the D3 of the check valve three and J3 of board-like choke valve three, accumulator AC bottom is liquid Force feed, top is compressed nitrogen, and the stable effect of buffering can be played in pressure fluctuation；Oil circuit controller YK is fuel-displaced to six tunnels The flow of mouth carries out automatic and accurate distribution, makes each connecting rod small-end bearing 4 equal with the oil pressure in copper sheathing 5 is supported, makes bent axle 3 in stabilization High pressure oil film low suspension works, and forcing press is had overshoot function, i.e. sliding block 9, can be by mould height on the basis of former bottom dead centre The thickness of one high pressure oil film of adjustment downwards, the thickness of high pressure oil film and the line of weakness deep equality of pop can cover plate closure plate, The suitable line of weakness of depth just so can be accurately cut out on pop can cover plate.
The top of sliding block 9 is provided with overcurrent protection oil cylinder 16, and overcurrent protection oil cylinder piston is provided with overcurrent protection oil cylinder 16 16a, overcurrent protection oil cylinder piston 16a center are provided with the piston centre post 16a1 stretched out upwards, and piston centre post 16a1's is upper End face is fixedly connected with the lower surface of otic placode 15；The lower section of the left and right sides of otic placode 15 is separately installed with hoist cylinder 20, hydraulic pressure The cylinder body of lift cylinder 20 is separately fixed on fuselage body 1, and the piston rod upper end of hoist cylinder 20 is fixed with otic placode 15 respectively to be connected Connect.
Overcurrent protection oil cylinder 16 is controlled by overload protective device；Overload protective device includes the B1 of plunger pump one, plunger pump one B1 suction inlet is connected by the L1 of oil absorption filter one with main fuel tank T1, and the B1 of plunger pump one outlet is connected with the D1 of check valve one, single Outlet to the D1 of valve one is connected with the LH1 of high voltage precision filter one, and the LH1 of high voltage precision filter one outlet is all the way by board-like The J1 of choke valve one is connected with the K1 of pilot operated compound relief valve one entrance, the K1 of pilot operated compound relief valve one outlet and solenoid directional control valve one YV1 P mouths connection, the YV1 of solenoid directional control valve one A mouths are connected with the D5 of check valve five entrance, the D5 of check valve five outlet difference It is connected with the oil inlet of overcurrent protection oil cylinder 16 and hydraulic control unloader valve X1 entrance, overcurrent protection oil cylinder 16 is single-action plunger piston Cylinder；The LH1 of high voltage precision filter one outlet another way connects by the board-like J2 of the choke valve two and YV2 of solenoid directional control valve two P mouths Connect, the YV2 of solenoid directional control valve two A mouths are connected with hydraulic control unloader valve X1 hydraulic control mouth；The YV1 of solenoid directional control valve one and solenoid directional control valve Two YV2 are two-position four-way valve, the outlet of the YV1 of solenoid directional control valve one and the YV2 of solenoid directional control valve two T mouths and hydraulic control unloader valve X1 It is connected with oil return box T2；The B1 of plunger pump one outlet is also associated with the F1 of overflow valve one, the F1 of overflow valve one outlet and main fuel tank T1 connections.
Hydraulic oil in main fuel tank T1 enters the B1 of plunger pump one through the L1 of oil absorption filter one, and the B1 of plunger pump one protects as overload The power source of shield, the F1 of overflow valve one is controlling the pressure of overload protective device in 13MPa, by the D1 of check valve one and high pressure essence After the close LH1 secondary filters of filter one, the oil circuit of overload protective device is divided into two, all the way through the board-like J1 of choke valve one, guide The K1 of formula overflow valve one, the YV1 of solenoid directional control valve one and the D5 of check valve five are to the fuel feeding of overcurrent protection oil cylinder 16；Another way is through board-like throttling The hydraulic control confession oil of the J2 of valve two and the YV2 of solenoid directional control valve two to hydraulic control unloader valve X1, hydraulic control unloader valve X1 are connected in parallel on overload protection On the oil inlet of oil cylinder 16, individually controlled by the YV2 of solenoid directional control valve two, set pressure as 10.5 MPa；
When forcing press works, hoist cylinder 20 is in locking state, and guide pillar 13 drives otic placode 15 to pump, otic placode 15 are synchronized with the movement by the piston centre post 16a1 band movable sliders 9 of overcurrent protection oil cylinder 16；Overcurrent protection oil cylinder 16 is nonoculture With plunger case, when forcing press overloads, the pressure oil cavity release of piston centre post 16a1 and cylinder bottom, prevent from damaging high-accuracy tank processed Die point.
Piston centre post 16a1 lower, outer perimeter is set with swivel nut 17, and the lower surface of swivel nut 17 is supported on overcurrent protection oil cylinder On piston 16a top surface step, the top of swivel nut 17 is fixedly connected with piston centre stud wheel 18；The periphery of swivel nut 17 is provided with Mode locking cylinder 19, mode locking cylinder 19 include locked mode cylinder sleeve 19a and locking piston 19b, and locking piston 19b inwall is screwed in by screw thread The periphery of swivel nut 17, locked mode cylinder sleeve 19a are located at locking piston 19b periphery, locking piston are fixed with the top of locking piston 19b Gland 19c, locking piston gland 19c outer rim, which are fixed at the top of locked mode cylinder sleeve 19a, makes locking piston 19b and locked mode cylinder sleeve The locked mode oil pocket 19d of sealing is formed between 19a, locked mode cylinder sleeve 19a bottom is fixedly connected with the cylinder body of overcurrent protection oil cylinder 16.
Mode locking cylinder 19 is controlled by clamping system；Clamping system includes the B2 of plunger pump two, and the B2 of plunger pump two suction inlet passes through suction The L2 of oil strainer two is connected with main fuel tank T1, and the B2 of plunger pump two outlet is connected with the D2 of check valve two entrance, the D2 of check valve two Outlet be connected with the LH2 of high voltage precision filter two entrance, the LH2 of high voltage precision filter two outlet and solenoid directional control valve three YV3 P mouths are connected, and the YV3 of solenoid directional control valve three A mouths are connected by one-way throttle valve DJ1 with the locked mode oil pocket of mode locking cylinder 19；Electricity The YV3 of magnetic reversal valve three is two-position four-way valve, and the YV3 of solenoid directional control valve three T mouths are connected with main fuel tank T1；The B2 of plunger pump two outlet The F2 of overflow valve two is also associated with, the F2 of overflow valve two outlet is connected with main fuel tank T1.
When adjusting bottom dead center of slider, locked mode oil pocket 19d is first in depressurization phase, passes through the rotation of piston centre stud wheel 18 The band synchronous axial system of movable snail sleeve 17, because the outer wall of swivel nut 17 and locking piston 19b inwall are mutually spun by screw thread, in locked mode In the case that piston 19b is motionless, the rotation of swivel nut 17 makes swivel nut 17 and piston centre stud wheel 18 raise or decline, and then makes The height for carrying protection oil cylinder piston 16a and piston centre post 16a1 changes, and bottom dead center of slider is highly adjusted.
After bottom dead center of slider is highly adjusted, the hydraulic oil in main fuel tank T1 enters plunger by the L2 of oil absorption filter two The power source of pump two B2, the B2 of plunger pump two as clamping system, the F2 of overflow valve two by the Stress control of clamping system in 26MPa, After the D2 of check valve two and the LH2 of high voltage precision filter two secondary filter, then through the YV3 of solenoid directional control valve three and one-way throttle Valve DJ1 enters the locked mode oil pocket of mode locking cylinder 19, and locking piston 19b is pressed on swivel nut 17 by locked mode oil pocket 19d after building pressure, both Between screw thread killed, bottom dead center of slider is fixed.During forcing press normal work, mode locking cylinder 19 is in locking state, Hoist cylinder 20 is also at locking state；When forcing press overloads, the drain charge of mode locking cylinder 19, hoist cylinder 20 automatically begins to carry Rise.
Hoist cylinder 20 is controlled by lifting system；Lifting system includes being connected with the LH2 of high voltage precision filter two outlets The K2 of pilot operated compound relief valve two, the K2 of pilot operated compound relief valve two outlet is connected with the YV4 of solenoid directional control valve four P mouths, electromagnetic switch The YV4 of valve four is the three-position four-way valve that Median Function is Y types, and the YV4 of solenoid directional control valve four T mouths are connected with main fuel tank T1, and electromagnetism changes It is connected to the YV4 of valve four A mouths by hydraulic lock S1 and Double throttle check valve SJ1 with the epicoele of hoist cylinder 20, electromagnetic switch The YV4 of valve four B mouths are connected by hydraulic lock S1 and Double throttle check valve SJ1 with the cavity of resorption of hoist cylinder 20.Forcing press is normal During work, mode locking cylinder 19 is in locking state, and hoist cylinder 20 is also at locking state；When forcing press overloads, mode locking cylinder 19 drain charges, the pressure oil of the LH2 of high voltage precision filter two outlets pass sequentially through the YV4 of solenoid directional control valve four, hydraulic lock S1, double unidirectional Choke valve SJ1 enters the cavity of resorption of hoist cylinder 20, the hydraulic oil backflow of hoist cylinder epicoele, and hoist cylinder 20 is opened automatically Begin to be lifted.
Oil return box T2 top and main fuel tank T1 top are interconnected, and screen pack, circulating pump B4 are provided with oil return box T2 Suction inlet be connected by the L4 of oil absorption filter four with space after oil return box T2 filter, circulating pump B4 outlet passes through the D4 of check valve four It is connected with the LH5 of high voltage precision filter five with main fuel tank T1, circulating pump B4 outlet is provided with the F4 of overflow valve four；In main fuel tank T1 Provided with heater HT, main fuel tank T1 side is provided with oil cooling machine CL.The system assembles hydraulic and lubricating system in an oil In case, the advanced oil return box T2 of oil return of system, after magnet magnetically attractive and filter screen filtration, into filter after space, then through oil suction The L4 of filter four enters circulating pump B4, and when main fuel tank T1 is in low oil level, circulating pump B4 extracts the oil return after filtering out, through unidirectional Oil temperature in the D4 of the valve four and LH5 of high voltage precision filter five feedings main fuel tank T1, main fuel tank T1 is by heater HT and external oil Cold CL is adjusted, and heater HT and oil cooling machine CL start and stop are controlled by temperature sensor 33b.
As shown in FIG. 10 to 14, bottom dead center of slider adjusting means includes manual rocker 21, the front end of manual rocker 21 Provided with square tenon termination 21a, the follower head of manual rocker 21 is provided with bevel gear 1, and bevel gear 1 is nibbled with the phase of bevel gear 2 23 Close, bevel gear 2 23 is arranged on the upper end of gear shaft 1, the roller gear of the lower end of gear shaft 1 and the idler gear on right side One 25 are meshed, and the right side of idler gear 1 is meshed with the piston centre stud wheel 18 positioned at right side；Idler gear 1 Rear side be meshed with the roller gear of the lower end of gear shaft 2 26, the roller gear of the lower end of gear shaft 2 26 and the center tooth in left side 2 27 engagements are taken turns, idler gear 2 27 is meshed with the piston centre stud wheel 18 positioned at left side.
By the square tenon termination 21a of the front end of spanner rotation manual rocking bar 21, manual rocker 21 drives one 22 turns of bevel gear Dynamic, bevel gear 1 drives bevel gear 2 23 and gear shaft 1 to rotate, and the roller gear of the lower end of gear shaft 1 drives right side Idler gear 1 rotate, the driving of idler gear 1 rotates positioned at the piston centre stud wheel 18 on right side；Center tooth simultaneously Take turns one 25 roller gears also with the lower end of movable gear shaft 2 26 to rotate, the roller gear of the lower end of gear shaft 2 26 is driven in left side Between gear 2 27 rotate in same direction with idler gear 1, idler gear 2 27 driving left side piston centre stud wheel 18 and right side Piston centre stud wheel 18 keep synchronous axial system in the same direction；The piston centre stud wheel 18 of so left and right sides is synchronous to be turned in the same direction It is dynamic, bottom dead center of slider is adjusted；The thinner thickness of piston centre stud wheel 18, it is easy to when adjusting bottom dead center of slider in Between gear 1 and idler gear 2 27 rotates while axially adjustable position.
The upper end of gear shaft 2 26 is provided with bevel gear 3 28, and bevel gear 3 28 is meshed with bevel gear 4 29, bevel gear 4 29 are arranged on one end of encoder axle, and the other end of encoder axle is provided with encoder 30.The cylinder of the lower end of gear shaft 2 26 While gear drives the idler gear 2 27 in left side to rotate, the bevel gear 3 28 of the upper end of gear shaft 2 26 drives bevel gear 4 29 Synchronous axial system, bevel gear 4 29 drive encoder axle synchronous axial system, and encoder 30 measures the adjustment parameter of bottom dead center of slider simultaneously It is supplied to control system.
As shown in Figure 15, Figure 16, one end of bent axle 3 is provided with the central hole of the crankshaft 3c extended into bent axle, central hole of the crankshaft 3c and support axle journal 3b coaxial lines, on central hole of the crankshaft 3c rod journal 3a and two support axle journal 3b circumference respectively Provided with pressure sensor mounting hole 3d1, pressure sensor mounting hole 3d1 bottom hole is respectively equipped with to connect with central hole of the crankshaft 3c Sensor lead hole 3e, each pressure sensor mounting hole 3d1 be connected with pressure sensor transit joint 31a, pressure respectively The pressure sensor 33a of measurement bent axle periphery high pressure oil film pressure, pressure sensing are connected with sensor transit joint 31a respectively Transition is provided between device transit joint 31a facing sensing device fairleads 3e termination and pressure sensor mounting hole 3d1 bottom Joint sealing circle 34；Unthreaded hole, the screw thread reduced successively provided with diameter from inside to outside along pressure sensor transit joint 31a axis Hole and pressure oil pass through hole 31a1, and pressure oil passes through hole 31a1 towards the outer surface of bent axle；Pressure sensor 33a includes being linked as one Pressure oil signal port 33a1, thread segment, cylindrical section and the hex head segment of body, pressure oil signal port 33a1 are inserted in pressure oil and passed through In the 31a1 of hole, the screwed hole of pressure sensor 33a thread segment and pressure sensor transit joint 31a mutually spins, pressure sensing Device 33a cylindrical section is located in pressure sensor transit joint 31a unthreaded hole, and pressure sensor 33a hex head segment is towards biography Sensor fairlead 3e, it is provided between the step of pressure sensor cylindrical section and pressure sensor transit joint 31a unthreaded hole step Sensor sealing ring 35.
When central hole of the crankshaft 3c causes crank rotation with support axle journal 3b coaxial lines, central hole of the crankshaft 3c axis is kept not It is dynamic, pressure sensor 33a can be screwed in by rotation pressure sensor 33a hex head segment by pressure sensor transit joint In 31a, sensor sealing ring 35 realizes the sealing between pressure sensor 33a and transit joint, and transit joint is pacified with sensor Realized and sealed by transit joint sealing ring 34 between dress hole, then pressure sensor transit joint 31a is screwed in pressure sensing In device mounting hole 3d1, pressure sensor transit joint 31a leaves surplus outside bent axle, and bent axle is carried out most after the completion of to be installed Finishing afterwards, to ensure that pressure sensor transit joint 31a is exposed at the part of crankshaft surface and the flush with outer surface of bent axle, pressure Force snesor 33a lead is drawn from sensor lead hole 3e and central hole of the crankshaft 3c.Pressure sensor 33a is arranged on bent axle Counterbore in, pressure oil enters pressure sensor 33a pressure oil signal port from the pressure oil of the transit joint hole 31a1 that passes through 33a1, pressure sensor 33a are able to measure the pressure of bent axle periphery high pressure oil film, and data are accurately and reliably.
As shown in figure 17, also distinguish on central hole of the crankshaft 3c rod journal 3a and two support axle journal 3b circumference Provided with temperature sensor fixing hole 3d2, temperature sensor fixing hole 3d2 bottom hole is respectively equipped with to connect with central hole of the crankshaft 3c Sensor lead hole 3e, each temperature sensor fixing hole 3d2 be connected with temperature sensor transit joint 31b, temperature respectively The temperature sensor 33b of measurement bent axle periphery hydraulic oil film temperature, TEMP are connected with sensor transit joint 31b respectively Transition is provided between device transit joint 31b facing sensing device fairleads 3e termination and temperature sensor fixing hole 3d2 bottom Joint sealing circle 34；The unthreaded hole and spiral shell reduced successively provided with diameter from inside to outside along temperature sensor transit joint 31b axis Pit, the bottom of screwed hole are provided with the blind plate 31b1 of closing, and blind plate 31b1 thickness is 3.5 ~ 4mm, and blind plate 31b1 is towards bent axle Outer surface；Temperature sensor 33b includes temperature-sensitive head 33b1, thread segment, cylindrical section and the hex head segment being connected as a single entity, and temperature passes Sensor 33b temperature-sensitive head 33b1 is resisted against on blind plate 31b1 inwall, temperature sensor 33b thread segment and temperature sensor mistake The screwed hole for crossing joint 31b mutually spins, and temperature sensor 33b cylindrical section is located at temperature sensor transit joint 31b unthreaded hole In, temperature sensor 33b hex head segment facing sensing device fairlead 3e, the step and TEMP of temperature sensor cylindrical section Sensor sealing ring 35 is provided between device transit joint 31b unthreaded hole step.
Temperature sensor 33b can be screwed in by the hex head segment for rotating temperature sensor 33b by temperature sensor mistake Crossing in joint 31b, sensor sealing ring 35 realizes the sealing between temperature sensor 33b and temperature sensor transit joint 31b, Realized and sealed by transit joint sealing ring 34 between temperature sensor transit joint 31b and sensor mounting hole；Due to temperature Sensor 33b can not bear too high pressure, between the temperature of temperature sensor 33b temperature-sensitive head 33b1 by measuring blind plate 31b1 Connect to obtain the temperature of high pressure oil film, because blind plate 31b1 thickness is only 3.5 ~ 4mm, thermal resistance is small, after heat transfer reaches balance, temperature The temperature of the very close bent axle Radinal pressure oil of temperature measured by sensor 33b.
Central hole of the crankshaft 3c external end head is provided with multi-channel circuit slip ring, pressure sensor 33a or temperature sensor 33b Lead be each passed through sensor mounting hole and central hole of the crankshaft 3c and each stator lead of multi-channel circuit slip ring inner termination connects Mouth is connected.Because bent axle wants high-speed rotation at work, pressure sensor 33a or temperature sensor 33b lead include electricity Source line and signal wire are connected with each stator lead interface of multi-channel circuit slip ring inner termination respectively, outside multi-channel circuit slip ring Each rotor leading wire of termination is connected with control system respectively, and such bent axle runs at high speed, and does not interfere with each sensor signal Collection and transmission, the lead of each sensor will not be wound.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model Enclose.In addition to the implementation, the present invention can also have other embodiment.All skills formed using equivalent substitution or equivalent transformation Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now There is technology realization, will not be repeated here.

Claims (10)

1. a kind of hydraulic control system of two point high-speed blanking press, including fuselage body, bent axle and sliding block, symmetrically set on the bent axle There are two rod journals, connecting rod small-end bearing has been respectively coated by two rod journals, has been respectively articulated with and has applied on the connecting rod small-end bearing Power connecting rod, upper end of the lower end respectively with guide pillar of the two force connecting rods are hinged, and the sliding block is connected to below guide pillar；Two institutes That states rod journal is respectively arranged on the left side and the right side support axle journal, and support copper sheathing, the branch have been respectively coated by the support axle journal Support copper sheathing is located in Curved shaft support seat, it is characterised in that：Between bent axle periphery and the connecting rod small-end bearing and the inwall for supporting copper sheathing Provided with the high pressure oil film for making bent axle suspension work, the high pressure oil film is controlled by main shaft dynamic pressure system；The main shaft dynamic pressure system Including constant flow paddle pump（B3）, constant flow paddle pump（B3）Suction inlet pass through oil absorption filter three（L3）With main fuel tank（T1）Connection, Constant flow paddle pump（B3）Outlet be connected with high voltage precision filter three in turn（LH3）With high voltage precision filter four（LH4）, it is high Press accurate filter four（LH4）Outlet and check valve three（D3）Entrance connection, check valve three（D3）Outlet and board-like section Flow valve three（J3）Entrance connection, board-like choke valve three（J3）Outlet and oil circuit controller（YK）Entrance connection, the oil Road controller（YK）Copper sheathing fuel feeding are supported provided with six road oil-outs with two connecting rod small-end bearings of the bent axle periphery and four respectively； The oil circuit controller（YK）Accurately distributing the flow of each oil-out makes each connecting rod small-end bearing equal with the oil pressure in copper sheathing is supported；It is fixed Measure vane pump（B3）Outlet be also associated with overflow valve three（F3）, overflow valve three（F3）Outlet and main fuel tank（T1）Connection；It is single To valve three（D3）Outlet be also associated with accumulator（AC）.
2. the hydraulic control system of two point high-speed blanking press according to claim 1, it is characterised in that：Under the guide pillar End is connected with otic placode respectively, is connected below the otic placode with the top of the piston centre post of overcurrent protection oil cylinder, and the overload is protected The cylinder body of shield oil cylinder is fixed on the sliding block, and the overcurrent protection oil cylinder is controlled by overload protective device；The overload protection System includes plunger pump one（B1）, plunger pump one（B1）Suction inlet pass through oil absorption filter one（L1）With main fuel tank（T1）Connection, Plunger pump one（B1）Outlet be connected with check valve one（D1）, check valve one（D1）Outlet be connected with high voltage precision filter one （LH1）, high voltage precision filter one（LH1）Outlet pass through board-like choke valve one all the way（J1）With pilot operated compound relief valve one（K1） Entrance connection, pilot operated compound relief valve one（K1）Outlet and solenoid directional control valve one（YV1）P mouths connection, solenoid directional control valve one （YV1）A mouths and check valve five（D5）Entrance connection, check valve five（D5）Outlet respectively with overcurrent protection oil cylinder（16）'s Oil inlet and hydraulic control unloader valve（X1）Entrance be connected, overcurrent protection oil cylinder（16）For single-action plunger piston cylinder；High voltage precision filters Device one（LH1）Outlet another way pass through board-like choke valve two（J2）With solenoid directional control valve two（YV2）The connection of P mouths, electromagnetism changes To valve two（YV2）A mouths and hydraulic control unloader valve（X1）Hydraulic control mouth be connected；Solenoid directional control valve one（YV1）With solenoid directional control valve two （YV2）It is two-position four-way valve, solenoid directional control valve one（YV1）With solenoid directional control valve two（YV2）T mouths and hydraulic control unloader valve（X1） Outlet and oil return box（T2）It is connected；Plunger pump one（B1）Outlet be also associated with overflow valve one（F1）, overflow valve one（F1） Outlet and main fuel tank（T1）Connection.
3. the hydraulic control system of two point high-speed blanking press according to claim 2, it is characterised in that：The piston centre Post lower, outer perimeter is set with swivel nut, and the lower surface of the swivel nut is supported on the top surface step of the overcurrent protection oil cylinder piston, Piston centre stud wheel is fixedly connected with the top of the swivel nut；The periphery of the swivel nut is provided with mode locking cylinder（19）, the lock Mould cylinder includes locked mode cylinder sleeve and locking piston, and the inwall of the locking piston is screwed in the periphery of the swivel nut by screw thread, institute The bottom for stating locked mode cylinder sleeve is fixedly connected with the cylinder body of the overcurrent protection oil cylinder, and the mode locking cylinder is controlled by clamping system；Institute Stating clamping system includes plunger pump two（B2）, plunger pump two（B2）Suction inlet pass through oil absorption filter two（L2）With main fuel tank（T1） Connection, plunger pump two（B2）Outlet and check valve two（D2）Entrance be connected, check valve two（D2）Outlet and high voltage precision Filter two（LH2）Entrance be connected, high voltage precision filter two（LH2）Outlet and solenoid directional control valve three（YV3）P mouth phases Even, solenoid directional control valve three（YV3）A mouths pass through one-way throttle valve（DJ1）With mode locking cylinder（19）Locked mode oil pocket be connected；Electromagnetism changes To valve three（YV3）For two-position four-way valve, solenoid directional control valve three（YV3）T mouths and main fuel tank（T1）It is connected；Plunger pump two（B2）'s Outlet is also associated with overflow valve two（F2）, overflow valve two（F2）Outlet and main fuel tank（T1）Connection.
4. the hydraulic control system of two point high-speed blanking press according to claim 3, it is characterised in that：Described otic placode or so Hoist cylinder is separately installed with below both sides, the cylinder body of the hoist cylinder is separately fixed on the fuselage body, institute The piston rod upper end for stating hoist cylinder is fixedly connected with the otic placode respectively, the hoist cylinder（20）It is controlled by lifting system System；The lifting system includes and high voltage precision filter two（LH2）The connected pilot operated compound relief valve two in outlet（K2）, pilot-operated type Overflow valve two（K2）Outlet and solenoid directional control valve four（YV4）P mouths be connected, solenoid directional control valve four（YV4）It is Y for Median Function The three-position four-way valve of type, solenoid directional control valve four（YV4）T mouths and main fuel tank（T1）It is connected, solenoid directional control valve four（YV4）A mouths Pass through hydraulic lock（S1）And Double throttle check valve（SJ1）With hoist cylinder（20）Epicoele be connected, solenoid directional control valve four（YV4） B mouths pass through hydraulic lock（S1）And Double throttle check valve（SJ1）With hoist cylinder（20）Cavity of resorption be connected.
5. the hydraulic control system of two point high-speed blanking press according to any one of claim 1 to 4, it is characterised in that： Oil return box（T2）Top and main fuel tank（T1）Top be interconnected, oil return box（T2）In be provided with screen pack, circulating pump（B4） Suction inlet pass through oil absorption filter four（L4）With oil return box（T2）Filter after space connect, circulating pump（B4）Outlet pass through it is unidirectional Valve four（D4）With high voltage precision filter five（LH5）With main fuel tank（T1）It is connected；Main fuel tank（T1）In be provided with heater（HT）, it is main Fuel tank（T1）Side oil cooling machine is installed（CL）.
6. the hydraulic control system of two point high-speed blanking press according to claim 3, it is characterised in that：The locked mode cylinder sleeve Positioned at the periphery of the locking piston, locking piston gland, the locking piston gland are fixed with the top of the locking piston Outer rim be fixed on the locked mode oil pocket for making that sealing is formed between locking piston and the locked mode cylinder sleeve at the top of the locked mode cylinder sleeve； Also include the high manual rocker of regulation mould, the front end of the manual rocker is provided with square tenon termination, the rear end of the manual rocker Head is provided with bevel gear one, and the bevel gear one is meshed with bevel gear two, and the bevel gear two is arranged on the upper of gear shaft one End, the roller gear of the lower end of gear shaft one are meshed with the idler gear one on right side, and the right side of idler gear one is with being located at The piston centre stud wheel on right side is meshed；The rear side of the idler gear one and the roller gear of the lower end of gear shaft two are mutually nibbled Close, the roller gear of the lower end of gear shaft two engages with the idler gear two in left side, idler gear two and the work positioned at left side Plug center stud wheel is meshed；The upper end of the gear shaft two is provided with bevel gear three, the bevel gear three and the phase of bevel gear four Engagement, the bevel gear four are arranged on one end of encoder axle, and the other end of the encoder axle is provided with encoder.
7. the hydraulic control system of two point high-speed blanking press according to claim 1, it is characterised in that：The connecting rod small-end bearing The inwall of high-pressure seal ring, the connecting rod small-end bearing and the support copper sheathing is separately installed with the both sides port of the support copper sheathing It is respectively equipped with the outer wall of copper sheathing high-voltage oil cavity and copper sheathing inner oil sump circumferentially, the connecting rod small-end bearing and the support copper sheathing The copper sheathing outer oil sump of multiple tracks circumferentially is respectively equipped with, the copper sheathing high-voltage oil cavity and copper sheathing inner oil sump pass through multiple copper respectively Set fuel feed hole communicates with the copper sheathing outer oil sump.
8. the hydraulic control system of two point high-speed blanking press according to claim 1, it is characterised in that：The one of the bent axle End is provided with the central hole of the crankshaft extended into bent axle, the central hole of the crankshaft and the support axle journal coaxial line, in bent axle Pressure sensor mounting hole, the pressure sensor peace are respectively equipped with the circumference of the rod journal in heart hole and two support axle journals The bottom hole in dress hole is respectively equipped with the sensor lead hole to be connected with the central hole of the crankshaft, each pressure sensor mounting hole Pressure sensor transit joint is being connected with respectively, is connected with measurement bent axle periphery in the pressure sensor transit joint respectively The pressure sensor of high pressure oil film pressure, termination and the pressure of the pressure sensor transit joint facing sensing device fairlead Transit joint sealing ring is provided between the bottom of force snesor mounting hole；Along the axis of the pressure sensor transit joint by interior Passed through hole to unthreaded hole, screwed hole and the pressure oil that diameter reduces successively is externally provided with, the pressure oil passes through hole face to the outer of bent axle Surface；The pressure sensor includes pressure oil signal port, thread segment, cylindrical section and the hex head segment being connected as a single entity, the pressure Power oil signal port is inserted in the current hole of the pressure oil, the thread segment of the pressure sensor and the pressure sensor transition The screwed hole of joint mutually spins, and the cylindrical section of the pressure sensor is located in the unthreaded hole of the pressure sensor transit joint, The hex head segment of the pressure sensor towards the sensor lead hole, the step of the pressure sensor cylindrical section with it is described Sensor sealing ring is provided between the unthreaded hole step of pressure sensor transit joint.
9. the hydraulic control system of two point high-speed blanking press according to claim 8, it is characterised in that：Close to crankshaft center Temperature sensor fixing hole, the temperature sensor peace are further respectively had on the circumference of the rod journal in hole and two support axle journals The bottom hole in dress hole is respectively equipped with the sensor lead hole to be connected with the central hole of the crankshaft, each temperature sensor fixing hole Temperature sensor transit joint is being connected with respectively, is connected with measurement bent axle periphery in the temperature sensor transit joint respectively The temperature sensor of hydraulic oil film temperature, termination and the temperature of the temperature sensor transit joint facing sensing device fairlead Transit joint sealing ring is provided between the bottom of degree sensor mounting hole；Along the axis of the temperature sensor transit joint by interior To the unthreaded hole and screwed hole for being externally provided with diameter and reducing successively, the bottom of screwed hole is provided with the blind plate of closing, the thickness of the blind plate For 3.5 ~ 4mm, the blind plate is towards the outer surface of bent axle；The temperature sensor include be connected as a single entity temperature-sensitive head, thread segment, Cylindrical section and hex head segment, the temperature-sensitive head of the temperature sensor are resisted against on the inwall of the blind plate, the temperature sensor The screwed hole of thread segment and the temperature sensor transit joint mutually spin, the cylindrical section of the temperature sensor is positioned at described In the unthreaded hole of temperature sensor transit joint, the hex head segment of the temperature sensor is described towards the sensor lead hole Sensor sealing ring is provided between the unthreaded hole step of the step of temperature sensor cylindrical section and the temperature sensor transit joint.
10. the hydraulic control system of two point high-speed blanking press according to claim 9, it is characterised in that：In the bent axle The external end head in heart hole is provided with multi-channel circuit slip ring, and the lead of the pressure sensor or temperature sensor is each passed through sensing Device mounting hole and central hole of the crankshaft are connected with each stator lead interface of the multi-channel circuit slip ring inner termination.
CN201710249378.9A 2017-04-17 2017-04-17 Hydraulic control system of double-point high-speed press Active CN107344424B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111928100A (en) * 2020-09-27 2020-11-13 浙江易锻精密机械有限公司 Hydraulic lubrication circuit of large-sized press machine for processing vehicle parts
CN112590278A (en) * 2020-11-27 2021-04-02 苏州舍勒智能科技有限公司 Force-increasing intelligent servo press

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09122999A (en) * 1995-11-07 1997-05-13 Amada Co Ltd Hydraulic circuit for driving double cylinder
JP2010071425A (en) * 2008-09-19 2010-04-02 Hitachi Constr Mach Co Ltd Hydraulically driven device for construction machine
CN204267432U (en) * 2014-11-19 2015-04-15 天水锻压机床(集团)有限公司 Steel pipe finishing machine electric-hydraulic proportion hydraulic control system
CN105545848A (en) * 2016-01-05 2016-05-04 广东思豪液压机械有限公司 Hydraulic control system for precisely synchronizing two side cylinders of tube hydroforming hydraulic machine
CN106050772A (en) * 2016-08-16 2016-10-26 江苏国力锻压机床有限公司 Quick stable main cylinder hydraulic system
CN206796606U (en) * 2017-04-17 2017-12-26 扬力集团股份有限公司 The hydraulic control system of two point high-speed blanking press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09122999A (en) * 1995-11-07 1997-05-13 Amada Co Ltd Hydraulic circuit for driving double cylinder
JP2010071425A (en) * 2008-09-19 2010-04-02 Hitachi Constr Mach Co Ltd Hydraulically driven device for construction machine
CN204267432U (en) * 2014-11-19 2015-04-15 天水锻压机床(集团)有限公司 Steel pipe finishing machine electric-hydraulic proportion hydraulic control system
CN105545848A (en) * 2016-01-05 2016-05-04 广东思豪液压机械有限公司 Hydraulic control system for precisely synchronizing two side cylinders of tube hydroforming hydraulic machine
CN106050772A (en) * 2016-08-16 2016-10-26 江苏国力锻压机床有限公司 Quick stable main cylinder hydraulic system
CN206796606U (en) * 2017-04-17 2017-12-26 扬力集团股份有限公司 The hydraulic control system of two point high-speed blanking press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111928100A (en) * 2020-09-27 2020-11-13 浙江易锻精密机械有限公司 Hydraulic lubrication circuit of large-sized press machine for processing vehicle parts
CN112590278A (en) * 2020-11-27 2021-04-02 苏州舍勒智能科技有限公司 Force-increasing intelligent servo press
CN112590278B (en) * 2020-11-27 2021-11-09 苏州舍勒智能科技有限公司 Force-increasing intelligent servo press

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