CN106194889A - A kind of High-Speed Automatic variable oil cylinder - Google Patents

A kind of High-Speed Automatic variable oil cylinder Download PDF

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Publication number
CN106194889A
CN106194889A CN201610638570.2A CN201610638570A CN106194889A CN 106194889 A CN106194889 A CN 106194889A CN 201610638570 A CN201610638570 A CN 201610638570A CN 106194889 A CN106194889 A CN 106194889A
Authority
CN
China
Prior art keywords
cylinder
cavity
head
push
press
Prior art date
Application number
CN201610638570.2A
Other languages
Chinese (zh)
Inventor
郭太军
Original Assignee
宁波普瑞达液压科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波普瑞达液压科技有限公司 filed Critical 宁波普瑞达液压科技有限公司
Priority to CN201610638570.2A priority Critical patent/CN106194889A/en
Publication of CN106194889A publication Critical patent/CN106194889A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0052Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/18Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B30B15/20Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram controlling the speed of the ram, e.g. the speed of the approach, pressing or return strokes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/22Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Abstract

The present invention relates to a kind of High-Speed Automatic variable oil cylinder, including cylinder body, central housing and push-down head, slide up and down in the lower ending opening of described cylinder body and push-down head is installed, described push-down head stretches into and is disposed with the first cavity in the middle part of one end of cylinder body, the vertically-mounted central housing having lower end to insert the first cavity at the upper end open of described cylinder body, the upper and lower both ends open of described cylinder body is sealed by top cover labyrinth and lower sealing cover respectively, the second cavity is formed between described top cover labyrinth and push-down head, described central housing upper end through top cover labyrinth and is connected with the first replenishing valve, several the second replenishing valves connected with the second cavity are installed on described top cover labyrinth.The present invention has that simple in construction, production cost be low, work time be substantially reduced the energy consumption of press, the output speed that simultaneously can control bonding press and output pressure thus improve the work efficiency of press, improve the feature such as benefit of factory.

Description

A kind of High-Speed Automatic variable oil cylinder
Technical field
The present invention relates to automatic variable oil cylinder technical field, particularly relate to a kind of High-Speed Automatic variable oil cylinder.
Background technology
The usual only one of which of its inner chamber of common oil cylinder, is input to hydraulic oil in oil cylinder by fluid-delivery valve when of work Intracavity, promotes the piston rod being positioned at inner chamber, the power output of the hydraulic cylinder of this oil cylinder and the output speed of piston rod and transfusion Valve send the amount of oil and speed to have direct relation, and the when of this cylinder efficient, its power output and output speed are constant, no Can change, and the when of equipped with the compressor operation of this oil cylinder, first have to the pressure of the pressing product ensured, so press It is the amount of infusion setting fluid-delivery valve according to desirable pressure when of operation, presses under it in order to ensure pressure during this compressor operation Speed is relatively slow, and energy consumption is higher, largely effects on the working efficiency of enterprise, and some press is in order to ensure its work efficiency, by oil cylinder The diameter of piston rod diminish, diameter diminishes can affect the pressure of oil cylinder, and this press is unsuitable to apply on pressing large-scale workpiece, In order to solve the problems referred to above, design a kind of pressing speed that can either keep press, ensure that again the oil of the pressure force of press Cylinder is necessary.
Summary of the invention
The technical problem to be solved is to provide a kind of High-Speed Automatic variable oil cylinder, has simple in construction, production Be substantially reduced the energy consumption of press, the output speed that simultaneously can control bonding press and output pressure when low cost, work thus Improve the work efficiency of press, improve the feature such as benefit of factory.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of High-Speed Automatic variable oil cylinder, a kind of High-Speed Automatic variable oil cylinder, including cylinder body, central housing and push-down head, slides up and down installation in the lower ending opening of described cylinder body There are push-down head, described push-down head to stretch in the middle part of one end of cylinder body and are disposed with the first cavity, at described cylinder body upper end open The vertically-mounted central housing having lower end to insert the first cavity, the described upper and lower both ends open of cylinder body respectively by top cover labyrinth and Lower sealing cover seals, and forms the second cavity between described top cover labyrinth and push-down head, and described central housing upper end is worn Cross top cover labyrinth and be connected with the first replenishing valve, described top cover labyrinth is provided with several connect with the second cavity second Replenishing valve.
Described push-down head upper end is provided with the first cavity being socketed on central housing outer ring and seals lid.
The oil-discharging cavity connected with the second cavity bottom it is disposed with on described inferior part of the cylinder block side.
Embed at outer ring between described top cover labyrinth and cylinder body top and sealing ring is installed.
This automatic variable oil cylinder is mainly used on press, and the second replenishing valve connected with the second cavity has two, topping up Time flow velocity very fast, the output speed of piston rod (i.e. push-down head) is inverse ratio with pump discharge and diameter of piston rod, straight at piston rod In the case of footpath is constant, the output speed of pump discharge its piston rod the biggest is the biggest, and output speed is the biggest, it is possible to ensure push-down head Under press speed, reduce the time consumed when push-down head moves down, thus improve work efficiency.
When push-down head near the product of punching press when, hydraulic system starts the first replenishing valve, during the first replenishing valve passes through Between cylinder body toward inputting fluid in the first cavity, due to pressing speed and the proportional relation of cylinder body sectional area of hydraulic cylinder, at product The starting stage of molding, active force is little, and the hydraulic system whole pump oil of distribution are given when the first cavity, make pressing speed be greatly improved. Second replenishing valve keeps oil suction state to the second cavity punching oil simultaneously.Due to formed product power increasing time, the first cavity Pressure also increases, and after reaching the hydraulic pressure value set, hydraulic system gives the second cavity fuel feeding simultaneously, thus makes hydraulic cylinder Power output be greatly promoted, be satisfied with the pressing requirements of product maximum force.
This cylinder structure not merely can be used in compressing technique, additionally it is possible to be used for stretching, Long travel extruding and In the technique such as high temperature or low-temp. extrusion, the output pressure of oil cylinder is the summation that the first cavity and the second cavity produce pressure, when the The when of one cavity topping up, now the output speed of push-down head is the fastest, it is possible to presses under push-down head when being greatly saved production and is consumed Time, and when needing the power output improving push-down head when, the second cavity starts topping up, the increasing of cross-sectional area oil cylinder within Add singly owing to the flow of pump is constant so that the pressure speed down of push-down head reduces, and improves the pressure force of push-down head simultaneously, completes pressurize Operation so that product shaping.
After production terminates, open oil-discharging cavity, the fluid in the first cavity and the second cavity is discharged, same to time control Push-down head processed is returned on position originally.
This cylinder structure, in the case of the volume not increasing originally cylinder body, can either solve oil cylinder when just starting working, The problem that piston rod translational speed slows down, can solve the problem that again the problem that oil cylinder output pressure is less, it is ensured that the quality of product In the case of substantially increase production efficiency, reduce energy consumption.
Beneficial effect
The present invention relates to a kind of High-Speed Automatic variable oil cylinder, have that simple in construction, production cost be low, work time be substantially reduced The energy consumption of press, the output speed that simultaneously can control bonding press and output pressure thus improve the work efficiency of press, carry The features such as the benefit of high factory.
Accompanying drawing explanation
Fig. 1 is the full sectional view of the present invention.
Diagram: 1, the first replenishing valve, the 2, second replenishing valve, the 3, second cavity, the 4, first cavity, 5, oil-discharging cavity, 6, upper close Capping, 7, central housing, 8, push-down head, 9, lower sealing cover, the 11, first cavity seals lid, and 12, cylinder body.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, people in the art The present invention can be made various changes or modifications by member, and these equivalent form of values fall within the application appended claims equally and limited Scope.
Embodiments of the present invention relate to a kind of High-Speed Automatic variable oil cylinder, as it is shown in figure 1, a kind of High-Speed Automatic variable is oily Cylinder, including cylinder body 12, central housing 7 and push-down head 8, it is characterised in that: slide up and down in the lower ending opening of described cylinder body 12 Being provided with push-down head 8, described push-down head 8 stretches into and is disposed with the first cavity 4 in the middle part of one end of cylinder body 12, described cylinder body 12 The vertically-mounted central housing 7 having lower end to insert the first cavity 4 at upper end open, described cylinder body about 12 both ends open is respectively Sealed by top cover labyrinth 6 and lower sealing cover 9, between described top cover labyrinth 6 and push-down head 8, form the second cavity 3, institute Central housing 7 upper end stated through top cover labyrinth 6 and is connected with the first replenishing valve 1, described top cover labyrinth 6 is provided with some Individual the second replenishing valve 2 connected with the second cavity 3.
Described push-down head 8 upper end is provided with the first cavity being socketed on central housing 7 outer ring and seals lid 11.
The oil-discharging cavity 5 connected with the second cavity 3 bottom it is disposed with in described cylinder body 12 lower side.
Embed at outer ring between described top cover labyrinth 6 and cylinder body 12 top and sealing ring is installed.
Embodiment 1
The Special forming machine of clutch outer member body cold-extrusion technology originally producing when, the system of clutch outer member body Needing the die sinking distance of 80mm, the crush stroke of about 110mm and the maximum press power of 2400KN, in order to meet above-mentioned making Data, factory typically requires the press selecting to produce 315 tons of pressure, the motor power consumption 22KW*2 of this press, configures oil pump 80L* 2, this motor speed parameter is: descend 200mmmm/s (deadweight glide) work speed soon: 30mm/s backhaul 180mm/s, this machine presser The condition time: about 12 seconds/(only ejecting to product after button).
And after selecting the oil cylinder in the technical program as the driving oil cylinder of press, the pressure force of press is still able to keep On 315 tons, the motor that this press selects simultaneously is 45KW dual-axle motor, simultaneously configuration 160L oil pump+108L donkey pump, this machine Speed parameter is as follows, descends 120mmmm/s (deadweight glide) work speed soon: 90~30mm/s backhaul 180mm/s, this machine presser The condition time: about 4.3 seconds/(only ejecting to product after button).
After both contrasts, select 2.79 times that its work efficiency of press is press originally of this cylinder structure, be greatly improved Compressor operation efficiency.
According to the mechanics feature of product forming technique, the opposition that product produces during processing molding by Little gradually big, according to this shaping characteristic, innovatively traditional cylinder structure by 1 chamber supercharging, devise and be divided into 2 or 3, The technical program have selected employing double cavity structure design.
Being thered is provided active force by the second cavity 3 during converted products leading portion, setting value is 100 ton forces, now oil pump stream Measuring constant, cavity volume diminishes, and speed is fast, is about 3 times of fltting speeds originally.And the active force that the first cavity 4 sets is as 215 Ton, keeps oil suction state by the first replenishing valve 1.Along with deformation of products power is increasing, the value reaching to set (can be pressure Or displacement signal value) system automatically opens up the first cavity 4 and participate in work, now cylinder body sectional area=the first cavity 4+ the second cavity 3, output action power 315 tons, owing to the flow of pump is constant, speed drops to normal speed.
After suppressing product, owing to the second cavity 3 and the first cavity 4 are all with quick oil-discharging replenishing valve structure, the machine is propped up Holding quick pressure releasing and synchronize backhaul, backhaul is provided oil mass by main pump 160L.When after master cylinder backhaul, donkey pump 108L provides oil mass the end of to Cylinder synchronizes (slightly time delay) ejecting product.Largest production efficiency is realized with this.
Embodiment 2
Use the hydraulic pressure special machine of this oil cylinder, started hydraulic press and applied the precedent at bolt heat forging molding, utilizing certainly On the basis of dynamic variable oil cylinder, owing to general bolt length is on 400mm, devise position, side punch die moving structure, can be effective Ground reduce drift from workpiece apart from away from problem, pattern, master cylinder return interval are greatly decreased.
Needing a diameter of 36mm of the bolt produced, length is 400mm, die sinking distance 420mm (by material space), and position, side rushes Head returns to working position, from workpiece 30mm, and crush stroke about 80mm, maximum press power 2500KN.
The when that factory using technique originally to produce, the punch press needing pressure to be more than 2500KN produces.This punching The when that bed using, the noise of generation is very big, affects production environment, is unfavorable for that workers with long time works, the bolt head simultaneously produced It is likely to occur unsaturation, does not reaches required bolt quality.
Using the press equipped with this variable oil cylinder, the pressure of press is 315 tons, and motor uses the configuration of 45KW dual-axle motor Having oil pump 160L, position, side cylinder thrust 250kn (cylinder promotion), and stroke 150mm, the speed parameter of this press is: under Kuai 120mmmm/s (deadweight is glided), work speed is 90~30mm/s backhaul 180mm/s.
This compressor operation step is as follows: 1, put high-frequency heating head wellScrew rod 2, button press 3, side cylinder promote drift Mould playback 4, the power output of the first cavity 4 of master cylinder are 120T, and output speed is 80mm/s, and crushing failure at high speed is deformed to 65mm distance 5, the total power output of the second cavity 3 and the first cavity 4 is 315T power, and output speed is 30mm/s, merges simultaneously and firmly arrives The position 6 of 80mm, master cylinder backhaul 7, master cylinder backhaul put in place, and side cylinder drift mould goes back to side, end cylinder synchronizes liftout and goes out.Four seconds are got over during production Just can make a bolt, efficiency is much higher than punch press processing originally.
This body can dock the self-feeding line of exploitation, can complete full-automation and produce, and product about 9/point is permissible Replace punching apparatus completely, alleviate manually in coreless induction furnace, the environment noise burden on stamping machine side.

Claims (4)

1. a High-Speed Automatic variable oil cylinder, including cylinder body (12), central housing (7) and push-down head (8), it is characterised in that: institute Sliding up and down in the lower ending opening of the cylinder body (12) stated and be provided with push-down head (8), described push-down head (8) stretches into cylinder body (12) Being disposed with the first cavity (4) in the middle part of one end, vertically-mounted at described cylinder body (12) upper end open have lower end to insert the first chamber The central housing (7) of body (4), described cylinder body (12) both ends open up and down is respectively by top cover labyrinth (6) and lower sealing cover (9) Seal, form the second cavity (3) between described top cover labyrinth (6) and push-down head (8), on described central housing (7) End is connected through top cover labyrinth (6) and with the first replenishing valve (1), described top cover labyrinth (6) is provided with several with second The second replenishing valve (2) that cavity (3) connects.
One the most according to claim 1 High-Speed Automatic variable oil cylinder, it is characterised in that: described push-down head (8) upper end The first cavity being socketed on central housing (7) outer ring is installed and seals lid (11).
One the most according to claim 1 High-Speed Automatic variable oil cylinder, it is characterised in that: described cylinder body (12) lower side The oil-discharging cavity (5) connected with the second cavity (3) bottom it is disposed with on face.
One the most according to claim 1 High-Speed Automatic variable oil cylinder, it is characterised in that: described top cover labyrinth (6) and Embed at outer ring between cylinder body (12) top and sealing ring is installed.
CN201610638570.2A 2016-08-04 2016-08-04 A kind of High-Speed Automatic variable oil cylinder CN106194889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610638570.2A CN106194889A (en) 2016-08-04 2016-08-04 A kind of High-Speed Automatic variable oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610638570.2A CN106194889A (en) 2016-08-04 2016-08-04 A kind of High-Speed Automatic variable oil cylinder

Publications (1)

Publication Number Publication Date
CN106194889A true CN106194889A (en) 2016-12-07

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000097206A (en) * 1998-09-24 2000-04-04 Kayaba Ind Co Ltd Hydraulic cylinder
CN1877139A (en) * 2005-09-12 2006-12-13 叶孙勇 Leakless combined oil cylinder
CN2856534Y (en) * 2005-09-06 2007-01-10 济南捷迈数控机械有限公司 Hydraulic cylinder
CN201747696U (en) * 2010-08-12 2011-02-16 湖州机床厂有限公司 Compound oil cylinder
CN201753717U (en) * 2010-08-09 2011-03-02 江苏华宏科技股份有限公司 Built-in type quick composite oil cylinder
CN202811641U (en) * 2012-09-11 2013-03-20 韶关市西马克液压缸有限公司 Extruding machine tin extrusion oil cylinder
CN105221513A (en) * 2014-06-10 2016-01-06 湖北海岚数控机床有限公司 The high speed compound oil cylinder that a kind of servovalve drives
CN206017320U (en) * 2016-08-04 2017-03-15 宁波普瑞达液压科技有限公司 A kind of High-Speed Automatic variable oil cylinder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000097206A (en) * 1998-09-24 2000-04-04 Kayaba Ind Co Ltd Hydraulic cylinder
CN2856534Y (en) * 2005-09-06 2007-01-10 济南捷迈数控机械有限公司 Hydraulic cylinder
CN1877139A (en) * 2005-09-12 2006-12-13 叶孙勇 Leakless combined oil cylinder
CN201753717U (en) * 2010-08-09 2011-03-02 江苏华宏科技股份有限公司 Built-in type quick composite oil cylinder
CN201747696U (en) * 2010-08-12 2011-02-16 湖州机床厂有限公司 Compound oil cylinder
CN202811641U (en) * 2012-09-11 2013-03-20 韶关市西马克液压缸有限公司 Extruding machine tin extrusion oil cylinder
CN105221513A (en) * 2014-06-10 2016-01-06 湖北海岚数控机床有限公司 The high speed compound oil cylinder that a kind of servovalve drives
CN206017320U (en) * 2016-08-04 2017-03-15 宁波普瑞达液压科技有限公司 A kind of High-Speed Automatic variable oil cylinder

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Application publication date: 20161207

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