CN102343686A - Synchronous supporting plate jacking device of moving workbench of pressing machine - Google Patents

Synchronous supporting plate jacking device of moving workbench of pressing machine Download PDF

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Publication number
CN102343686A
CN102343686A CN2011103158032A CN201110315803A CN102343686A CN 102343686 A CN102343686 A CN 102343686A CN 2011103158032 A CN2011103158032 A CN 2011103158032A CN 201110315803 A CN201110315803 A CN 201110315803A CN 102343686 A CN102343686 A CN 102343686A
Authority
CN
China
Prior art keywords
supporting plate
oil
hydraulic
hydraulic cylinders
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103158032A
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Chinese (zh)
Inventor
马保卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RONGCHENG METAL FORMING MACHINE CO Ltd
Original Assignee
RONGCHENG METAL FORMING MACHINE CO Ltd
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 RONGCHENG METAL FORMING MACHINE CO Ltd filed Critical RONGCHENG METAL FORMING MACHINE CO Ltd
Priority to CN2011103158032A priority Critical patent/CN102343686A/en
Publication of CN102343686A publication Critical patent/CN102343686A/en
Pending legal-status Critical Current

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Abstract

The technology of the invention belongs to the technical field of a pressing machine. In order to solve the technical problem that when a supporting plate is lifted, the inconsistent movement of hydraulic cylinders results in the inclination of the supporting plate, the invention adopts the following technical scheme: a synchronous supporting plate jacking device of a moving workbench of the pressing machine comprises the supporting plate, four hydraulic cylinders and a hydraulic pump, wherein the four hydraulic cylinders are fixed with four corners of the supporting plate, and the hydraulic pump supplies oil to the hydraulic cylinders; the synchronous supporting plate jacking device is characterized in that the hydraulic pump is connected with an oil inlet of an increment type distributor by a main oil pipe; four oil outlets of the increment type distributor are respectively with the four hydraulic cylinders by oil distributing pipes; and a one-way valve is arranged between each oil distributing pipe leading to the hydraulic cylinder and the main oil pipe. After the structure is adopted, the movement of the four cylinders is basically consistent, and the supporting plate is lifted and moves stably.

Description

Moveable platform of press supporting plate jack-up sychronisation
Technical field
This invention technology belongs to the press technologies field, specifically is meant moveable platform of press supporting plate jack-up sychronisation.
Background technology
The structure of the moveable platform of press of extensive use in the market is; Support works table top on the stand of workbench; Stand bottom at workbench; The below that is work top is provided with supporting plate; Be connected through hydraulic cylinder between supporting plate and the work top; Hydraulic cylinder and work top are fixed, and hydraulic cylinder piston rod and supporting plate are fixed, and the action through hydraulic cylinder drives supporting plate and moves up and down.Supporting plate is provided with push rod, and the work top corresponding with push rod is provided with jogger hole, when supporting plate moves up; Push rod above it can run through the jogger hole on the work top; After punching press finished, oil cylinder drove supporting plate and moves up, and push rod runs through jogger hole the stamping parts in the bed die is ejected.
Because more than one of the hydraulic cylinder that is connected between work top and the supporting plate; Mostly be in the reality that four hydraulic cylinders drive supporting plate and move; In the production; When supporting plate work is risen; Often because four hydraulic cylinder actions are inconsistent, there is difference in the speed of rise, makes the supporting plate run-off the straight; Push rod can't run through jogger hole, pulls guide rail even.
Summary of the invention
The purpose of this invention is to provide a kind of moveable platform of press supporting plate jack-up sychronisation, when rising to solve present supporting plate, the inconsistent technical problem that causes supporting plate to tilt of hydraulic cylinder action.
For reaching above-mentioned technical purpose; The technical scheme that the present invention adopts is: moveable platform of press supporting plate jack-up sychronisation; Comprise supporting plate, with four hydraulic cylinders of supporting plate Corner Strapped and to the hydraulic pump of hydraulic cylinder fuel feeding; It is characterized in that: described hydraulic pump links to each other with the oil-in of stepwise type distributor through main oil pipe; Four oil-outs of stepwise type distributor link to each other with four hydraulic cylinders through oil distributing pipe respectively, between every oil distributing pipe that leads to hydraulic cylinder and main oil pipe, are provided with check valve.
Said length unanimity of leading to the oil distributing pipe of four hydraulic cylinders.
Beneficial effect of the present invention is: in these lazy-tongs, adopt lubricating system stepwise type distributor commonly used; It can be used for high pressure and wide variations in temperature operating mode; As long as the pressure feed distributor is arranged; The work plunger pair will be with laddering mode; With each branch's oiling in system of constant oil drain quantity; Any one oil circuit stops up, and whole system quits work.Adopt after this structure the action of four cylinders in full accord basically, supporting plate rises and operates steadily.This sychronisation overall volume is little, and it is time saving and energy saving, easy to operate to assemble, and maintenance and repair is convenient, reduces attendant's workload, greatly reduces cost.
Description of drawings
Accompanying drawing 1 for supporting plate among the present invention and travelling table structural representation.
Accompanying drawing 2 is stepwise type distributor pipeline connecting figure among the present invention.
Among the figure, 1, stand, 2, work top; 3, supporting plate, 4, push rod, 5, hydraulic cylinder; 6, jogger hole, 7, hydraulic pump, 8, main oil pipe; 9, stepwise type distributor, 10, the stepwise type distributor oil-in, 11, the stepwise type distributor oil-out; 12, oil distributing pipe; 13, check valve, 14, three-way connection, 15, four-way connection.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1; Support works table top 2 on the stand 1 of workbench; Stand 1 bottom at workbench; The below that is work top is provided with supporting plate 3, is connected through hydraulic cylinder 5 between supporting plate 3 and the work top 2, and supporting plate is provided with push rod 4; The work top corresponding with push rod is provided with jogger hole 6; After punching press finished, hydraulic cylinder 5 drove supporting plate 3 and moves up, and push rod 4 runs through jogger hole 6 stamping parts in the bed die is ejected.
As shown in Figure 2; The driving hydraulic oil of hydraulic cylinder 5 is supplied with by stepwise type distributor oil-out 11; In this embodiment; Hydraulic pump 7 links to each other with stepwise type distributor oil-in 10 through main oil pipe 8; Four oil-outs 11 of stepwise type distributor link to each other with four hydraulic cylinders 5 through oil distributing pipe 12 respectively, between every oil distributing pipe 12 that leads to hydraulic cylinder 5 and main oil pipe 8, are provided with check valve 13.
As shown in Figure 2, the branch of pipeline is through installing four-way connection 15 additional and on oil distributing pipe 12, installing three-way connection 13 realizations additional on the main oil pipe 8, and concrete the connection can accomplish shown in 2 with reference to the accompanying drawings.In this embodiment, the valve of check valve 13 is to doing, when the pressure of oil distributing pipe 12 during greater than the pressure of main oil pipe 8, check valve 13 is opened, and hydraulic oil is flowed back in the main oil pipe 8 by oil distributing pipe 12.
During actual installation, stepwise type distributor is installed in the centre position at travelling table stand back, for the oil resistance of each oil-out of guaranteeing stepwise type distributor 9 identical, the oil distributing pipe equal in length of each oil-out to the hydraulic cylinder of stepwise type distributor 9.

Claims (2)

1. moveable platform of press supporting plate jack-up sychronisation; Comprise supporting plate, with four hydraulic cylinders of supporting plate Corner Strapped and to the hydraulic pump of hydraulic cylinder fuel feeding; It is characterized in that: described hydraulic pump links to each other with the oil-in of stepwise type distributor through main oil pipe; Four oil-outs of stepwise type distributor link to each other with four hydraulic cylinders through oil distributing pipe respectively, between every oil distributing pipe that leads to hydraulic cylinder and main oil pipe, are provided with check valve.
2. moveable platform of press supporting plate jack-up sychronisation according to claim 1 is characterized in that: said length unanimity of leading to the oil distributing pipe of four hydraulic cylinders.
CN2011103158032A 2011-10-18 2011-10-18 Synchronous supporting plate jacking device of moving workbench of pressing machine Pending CN102343686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103158032A CN102343686A (en) 2011-10-18 2011-10-18 Synchronous supporting plate jacking device of moving workbench of pressing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103158032A CN102343686A (en) 2011-10-18 2011-10-18 Synchronous supporting plate jacking device of moving workbench of pressing machine

Publications (1)

Publication Number Publication Date
CN102343686A true CN102343686A (en) 2012-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103158032A Pending CN102343686A (en) 2011-10-18 2011-10-18 Synchronous supporting plate jacking device of moving workbench of pressing machine

Country Status (1)

Country Link
CN (1) CN102343686A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744334A (en) * 2012-07-17 2012-10-24 沃得重型机床(中国)有限公司 Ejector rod ejecting device of movable worktable of press
US20170261009A1 (en) * 2014-09-12 2017-09-14 Lemken Gmbh & Co Kg Hydraulic control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744334A (en) * 2012-07-17 2012-10-24 沃得重型机床(中国)有限公司 Ejector rod ejecting device of movable worktable of press
US20170261009A1 (en) * 2014-09-12 2017-09-14 Lemken Gmbh & Co Kg Hydraulic control device

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120208