CN104669660A - Improved four-column hydraulic press - Google Patents
Improved four-column hydraulic press Download PDFInfo
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- CN104669660A CN104669660A CN201510055443.5A CN201510055443A CN104669660A CN 104669660 A CN104669660 A CN 104669660A CN 201510055443 A CN201510055443 A CN 201510055443A CN 104669660 A CN104669660 A CN 104669660A
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- hydraulic press
- cylinder body
- workbench
- main piston
- slide block
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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
- B30B1/32—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 plungers under fluid pressure
- B30B1/34—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 plungers under fluid pressure involving a plurality of plungers acting on the platen
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides an improved four-column hydraulic press, and belongs to the technical field of machinery. The improved four-column hydraulic press solves the problem of poor universality of existing four-column hydraulic presses. The improved four-column hydraulic press comprises a press body, an oil tank and a control cabinet connected with the oil tank. Guide columns are penetratingly arranged at four corners of the press body respectively. The press body comprises a cross beam, a workbench and a slider arranged between the cross beam and the workbench. Each guide column sequentially penetrates the cross beam, the slider and the workbench from top to bottom. A main cylinder is arranged in the middle of the cross beam vertically penetratingly, is communicated with the oil tank and comprises a main cylinder body and a main piston inserted in the main cylinder body. The main piston is fixedly connected with the slider through a flange. A working gap is formed between the flange and the tail end of the main cylinder body. The control cabinet can drive the main piston to drive the slider to slide towards the workbench vertically downwardly, and the working gap becomes larger gradually when the main piston slides vertically downwardly. The improved four-column hydraulic press has the advantage of high universality.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of four-column hydraulic press of improvement, the four-column hydraulic press of particularly a kind of universal improvement.
Background technology
Hydraulic press (having another name called: hydraulic press) is a kind of plant equipment utilizing hydrostatic pressure to come the goods such as processing metal, plastics, rubber, timber, powder.It is usually used in pressing process and compressing technique, as: forging and stamping, punching press, cold-extruded, alignment, bending, flange, process of sheet drawing, powder metallurgy, press-fits etc.Hydraulic press has vertical and horizontal two kinds, and most hydraulic press is vertical, and extruding hydraulic press then many employings is horizontal.To come point by version, hydraulic press has the patterns such as twin columns, four posts, eight posts, lead frame and multilayer steel band wrapped box frame, medium and small vertical hydraulic press also useful C type frame formula.
Four-column hydraulic press is applicable to the pressing process of plastic material.As shaping in pulverulent product, plastic product forming, cold (heat) extrusion metal are shaping, the technique such as Sheet stretch and horizontal pressure, curved pressure, flange, correction.Four-column hydraulic press also can be divided into four post two beam hydraulic presses, four post three beam hydraulic presses, four post four beam hydraulic presses etc.
In prior art, according to different converted products, different processing technologys etc., different hydraulic press structures can be adopted, but hydraulic press price is often very high, in order to reduce cost, adopting universal hydraulic press as far as possible, in hydraulic press, placing dissimilar mould to make full use of hydraulic press; The various moulding process that hydraulic press carries out are higher to required precision, and hydraulic press needs to ensure that each parts normally run in the course of the work, therefore requires higher to the workpiece of hydraulic press, the precision of especially each hydraulic cylinder and sealing requirements.In addition, the requirement for the interaction relation between each parts is important too.
In sum, for solving the structural deficiency of existing hydraulic press, need to design a kind of four-column hydraulic press of reasonable in design, versatility good, working effect is good improvement.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of four-column hydraulic press of reasonable in design, versatility good, working effect is good improvement.
Object of the present invention realizes by following technical proposal: a kind of four-column hydraulic press of improvement, comprise fuselage, the fuel tank being arranged on fuselage side and the switch board be connected with fuel tank, the rectangular setting of described fuselage and be all equipped with guide pillar at four edges of fuselage, described fuselage comprises crossbeam, workbench and the slide block be arranged between crossbeam and workbench, described crossbeam, slide block and workbench three be arranged in parallel, each guide pillar is all from top to bottom successively through crossbeam, slide block and workbench, and each guide pillar is all by clamp nut and crossbeam, workbench is connected, vertically master cylinder is equipped with and master cylinder and fuel tank UNICOM in the middle part of crossbeam, described master cylinder comprises Master cylinder body and is plugged in the main piston in Master cylinder body, described main piston is connected by flange and slide block, the working clearance is there is between described flange and Master cylinder body end, described switch board can drive main piston with slide block towards workbench slippage straight down, and when main piston slippage straight down, the described working clearance becomes large gradually.
In the four-column hydraulic press of above-mentioned a kind of improvement, be arranged with fairlead at the end of main piston, described fairlead and main piston are tightly connected and fairlead and Master cylinder body fit tightly.
In the four-column hydraulic press of above-mentioned a kind of improvement, the end cap be set in fairlead circumferential lateral surface is installed at the end of Master cylinder body, on end cap, uniform ring is around being distributed with the some bolts axially arranged, each bolt is all connected with Master cylinder body through end cap, and the described working clearance faces between the end face of flange and flange at each bolt.
In the four-column hydraulic press of above-mentioned a kind of improvement, be fixed with back-up ring away from one end of Master cylinder body and back-up ring and end cap are connected at fairlead.
In the four-column hydraulic press of above-mentioned a kind of improvement, described main piston inner hollow is arranged, the circumferential lateral surface of main piston end offer cannelure and this cannelure arc transition to the circumferential lateral surface of main piston end, described flange sleeve is located at cannelure place and in flange, is provided with the centring ring fitted tightly with cannelure bottom surface, described centring ring and flange compact siro spinning technology.
In the four-column hydraulic press of above-mentioned a kind of improvement, each guide pillar is all arranged with two adjusting nuts, one of them adjusting nut is between crossbeam and slide block and be connected with the end face that crossbeam faces slide block, and another adjusting nut is between slide block and workbench and be connected with the end face of work top towards slide block.
In the four-column hydraulic press of above-mentioned a kind of improvement, liftout tank is equipped with and liftout tank and master cylinder are coaxially arranged in the middle part of workbench, described liftout tank comprises ejecting cylinder body and being plugged in eject and ejects piston in cylinder body, the described circumferential lateral surface ejecting piston with eject cylinder body and be tightly connected, be inserted with and the push rod ejecting piston and be connected ejecting cylinder base, push rod is arranged with dust ring and dust ring with eject cylinder body and be connected.
In the four-column hydraulic press of above-mentioned a kind of improvement, be provided with the switch module that can control to eject piston stroke in push rod side, described switch module is electrically connected with switch board.
In the four-column hydraulic press of above-mentioned a kind of improvement, the end face of slider surface towards workbench offers the "T"-shaped groove of some row first, the end face of work top towards slide block offers the "T"-shaped groove "T"-shaped groove of some row second one to one with first.
Compared with prior art, the present invention is reasonable in design, easy and simple to handle; It is firm that main piston and slide block can ensure to be connected by Flange joint, can not impact, guarantee the quality of compacted products to compacting work; The setting of adjusting nut can adjust the positional precision of slide block, guide pillar etc. at any time, ensures product quality further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of master cylinder in a preferred embodiment of the present invention.
Fig. 4 is the structural representation of liftout tank in a preferred embodiment of the present invention.
In figure, 10, fuselage; 11, crossbeam; 12, workbench; 121, the second "T"-shaped groove; 13, slide block; 131, the first "T"-shaped groove; 20, fuel tank; 30, switch board; 40, guide pillar; 51, clamp nut; 52, adjusting nut; 60, master cylinder; 61, Master cylinder body; 62, main piston; 621, cannelure; 63, flange; 64, fairlead; 65, end cap; 66, bolt; 67, back-up ring; 68, centring ring; 70, liftout tank; 71, cylinder body is ejected; 72, piston is ejected; 73, push rod; 74, dust ring; 75, switch module; 80, the working clearance.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 4, the four-column hydraulic press of this improvement comprises fuselage 10, the fuel tank 20 being arranged on fuselage 10 side and the switch board 30 be connected with fuel tank 20, the rectangular setting of fuselage 10 and be all equipped with guide pillar 40 at four edges of fuselage 10, fuselage 10 comprises crossbeam 11, workbench 12 and the slide block 13 be arranged between crossbeam 11 and workbench 12, crossbeam 11, slide block 13 and workbench 12 three be arranged in parallel, each guide pillar 40 is all from top to bottom successively through crossbeam 11, slide block 13 and workbench 12, and each guide pillar 40 is all by clamp nut 51 and crossbeam 11, workbench 12 is connected, master cylinder 60 is vertically equipped with and master cylinder 60 and fuel tank 20 UNICOM in the middle part of crossbeam 11, master cylinder 60 comprises Master cylinder body 61 and is plugged in the main piston 62 in Master cylinder body 61, main piston 62 is connected by flange 63 and slide block 13, the working clearance 80 is there is between flange 63 and Master cylinder body 61 end, switch board 30 can drive main piston 62 with slide block 13 towards workbench 12 slippage straight down, and when main piston 62 slippage straight down, working clearance 80 becomes large gradually.
The mould of required converted products operationally, is generally installed on a hydraulic press by hydraulic press, and wherein cover half is fixing on table 12, and dynamic model is then connected with slide block 13.Piston in hydraulic cylinder is connected with slide block 13, and can promote slide block 13 and be inconjunction with dynamic model on slide block 13 together towards cover half slippage, until dynamic model and cover half matched moulds, after presser completes, the former road of piston returns, and carries out die sinking.
In whole hydraulic press, the interlock between piston and slide block 13 is important role in whole pressing process, therefore needs the connection ensureing to carry out robust between the two.In the four-column hydraulic press of this improvement, adopt flange 63 main piston 62 and slide block 13 to be linked together, such connected mode can bear larger pressure.In addition, dismounting is convenient in the connection of employing flange 63 and bonding strength is high, good seal performance, also easy to use.
Flange 63 will select suitable specification according to design code, and flange 63 normally uses in pairs, and require two flange 63 keeping parallelisms during mounting flange 63, the sealing surface of flange 63 can not be damaged, and will clean out.
Guide pillar 40 arrange on the one hand for the motion of slide block 13 provides guide effect, on the other hand can bearing cross beam 11 and workbench 12, and form working space between crossbeam 11 and workbench 12.In addition, guide pillar 40 quantity is four and makes the stability of hydraulic press better.
Distance between working clearance 80 i.e. flange 63 and Master cylinder body 61 end, during work, main piston 62 is with slide block 13, flange 63 slippage downwards, and the distance between flange 63 and Master cylinder body 61 end is increasing.
As shown in Figure 3, preferably, be arranged with fairlead 64 at the end of main piston 62, fairlead 64 and main piston 62 are tightly connected and fairlead 64 and Master cylinder body 61 fit tightly.Fairlead 64 is as the term suggests provide a guide effect to main piston 62 exactly, in addition, it is in order to avoid revealing due to the fluid in master cylinder 60 when working that fairlead 64 and main piston 62 are tightly connected, thus the phenomenon causing compacting work to carry out smoothly occurs.
In view of requirements of one's work, formation two oil pockets are needed between main piston 62 and Master cylinder body 61, the diameter on main piston 62 top is greater than the diameter of main piston 62 end, if Master cylinder body 61 end to be directly designed to the structure fitted tightly with main piston 62 end, one can cause Master cylinder body 61 difficulty of processing large, two in working continuously, and wearing and tearing between main piston 62 and Master cylinder body 61 can be more and more serious.And be provided with fairlead 64 and just can solve the problem, once wearing and tearing are relatively more serious, only need change fairlead 64, can also play guide effect in addition, killing three birds with one stone, application conveniently, rationalizes more.
Preferably, the end cap 65 be set in fairlead 64 circumferential lateral surface is installed at the end of Master cylinder body 61, on end cap 65, uniform ring is around being distributed with the multiple bolts 66 axially arranged, each bolt 66 is all connected with Master cylinder body 61 through end cap 65, and the working clearance 80 faces between the end face of flange 63 and flange 63 at each bolt 66.
Further preferably, back-up ring 67 is fixed with away from one end of Master cylinder body 61 and back-up ring 67 and end cap 65 are connected at fairlead 64.
Be provided with multiple sealing ring between fairlead 64 inwall and main piston 62, thus the sealing between fairlead 64 and main piston 62 can be ensured.Fairlead 64 is fitted tightly by some step surfaces and Master cylinder body 61, but easily like this to depart from main piston 62 constantly slipping, therefore end cap 65 and back-up ring 67 is provided with, back-up ring 67 is connected with end cap 65, fairlead 64 respectively, and end cap 65 is connected by multiple bolt 66 and Master cylinder body 61 and end cap 65 and fairlead 64 also fit tightly, such vibrational power flow can ensure the stability of fairlead 64 in working for a long time, does not loosen.
As shown in Figure 3, distance between flange 63 and each bolt 66 is less than the distance between flange 63 and back-up ring 67, therefore, the working clearance 80 existed between flange 63 and Master cylinder body 61 end specifically refers to each bolt 66 and faces the working clearance 80 existed between the end face of flange 63 and flange 63, during along with main piston 62 slippage straight down, working clearance 80 is increasing, otherwise the working clearance 80 is more and more less.When the top of main piston 62 and Master cylinder body 61 inwall are fitted, the working clearance 80 still exists, and now the value of working clearance 80 is minimum.
When main piston 62 is return in Master cylinder body 61, if do not have the working clearance 80, the end face that so each bolt 66 faces flange 63 will touch with flange 63.If things go on like this, all can produce wearing and tearing to each parts, shorten part service life, need renewal part continually, the presser of hydraulic press more can be caused to do to occur mistake, and then the quality of product is had an impact, therefore must ensure the existence of working clearance 80.
Further preferably, main piston 62 inner hollow is arranged, the circumferential lateral surface of main piston 62 end offer cannelure 621 and this cannelure 621 arc transition to the circumferential lateral surface of main piston 62 end, flange 63 is set in cannelure 621 place and in flange 63, is provided with the centring ring 68 fitted tightly with cannelure 621 bottom surface, centring ring 68 and flange 63 compact siro spinning technology.
The build of hydraulic press is all generally very large, and what the present invention adopted is independent master cylinder 60, and this just needs the volume ratio of master cylinder 60 comparatively large, and therefore the volume of main piston 62 also can be correspondingly larger.The inside of main piston 62 adopts hollow to arrange, and on the one hand ensureing the weight that suitably can reduce main piston 62 self under normal working condition, reduces the consumption of material; Hollow cylinder has better mechanical property than solid cylinder on the other hand, can carry out compacting work better.
The effect of the power that main piston 62 and slide block 13 junction are subject to is large, offering of cannelure 621 makes the end of main piston 62 form a buffer part, stressed effect can be reduced to a certain extent in the reciprocating motion of main piston 62, thus extend the service life of main piston 62.
Flange 63 is set in cannelure 621 place, and in flange 63, be provided with the centring ring 68 fitted tightly with cannelure 621 bottom surface, and centring ring 68 and flange 63 fit tightly, and can make flange 63 and main piston 62 accurate positioning, be more conducive to main piston 62 and be connected with slide block 13.It is worth mentioning that, on slide block 13, with the place that main piston 62 connects, the corresponding auxiliary flange arranged with flange 63 can also be installed, and adopt multiple screw flange 63 and auxiliary flange to be linked together, ensure that main piston 62 is connected with stable between slide block 13 further.
As shown in Figure 1, preferably, each guide pillar 40 is all arranged with two adjusting nuts 52, one of them adjusting nut 52 is between crossbeam 11 and slide block 13 and be connected with the end face that crossbeam 11 faces slide block 13, and another adjusting nut 52 is between slide block 13 and workbench 12 and be connected with the end face that workbench 12 faces slide block 13.
The setting of adjusting nut 52 can adjust the positional precision of slide block 13, guide pillar 40 etc. at any time, different according to the mould be arranged between slide block 13 from workbench 12, can carry out the adjustment of positional precision, the depth of parallelism to slide block 13, guide pillar 40 etc. by adjusting nut 52.In addition, time necessary, also can regulate clamp nut 51, ensure that the precision of hydraulic press is in a good level.
As shown in Figure 4, preferably, liftout tank 70 is equipped with and liftout tank 70 and master cylinder 60 are coaxially arranged in the middle part of workbench 12, liftout tank 70 comprises ejecting cylinder body 71 and being plugged in eject and ejects piston 72 in cylinder body 71, the circumferential lateral surface ejecting piston 72 with eject cylinder body 71 and be tightly connected, ejecting the push rod 73 be inserted with bottom cylinder body 71 with ejecting piston 72 and being connected, push rod 73 is arranged with dust ring 74 and dust ring 74 with eject cylinder body 71 and be connected.
Further preferably, be provided with the switch module 75 that can control to eject piston 72 stroke in push rod 73 side, switch module 75 is electrically connected with switch board 30.
As shown in Figure 4, liftout tank 70 is similar to the structure collectivity of master cylinder 60.Liftout tank 70 is for releasing the product of forming from mould, and the ejecting mechanism in mating mold is by product stripping.
Push rod 73 and switch module 75 are equipped with, switch module 75 comprises two travel switch (not shown)s, when fluid drive eject piston 72 moves time, push rod 73 with on move, push rod 73 can touch with one of them travel switch away from the one end ejecting cylinder body 71, and switch board 30 controls liftout tank 70 and stops action; When fluid drive eject piston 72 move down time, push rod 73 moves down thereupon, and then push rod 73 touches away from the one end and another travel switch ejecting cylinder body 71, and switch board 30 controls liftout tank 70 and stops action.
Switch module 75 is electrically connected with switch board 30, when push rod 73 touches two travel switches, can have corresponding instruction.Distance between two travel switches is the impulse stroke ejecting piston 72 and push rod 73.
In addition, in workbench 12 side, switch frame (not shown) is installed, switch frame also comprises multiple travel switch, slide block 13 is provided with the collision block (not shown) that arrange corresponding to switch frame, when slide block 13 is along with main piston about 62 slippage, collision block will touch with travel switch.Switch frame is also electrically connected with switch board 30, when collision block touches different travel switches, also has corresponding instruction.
The setting of dust ring 74 is in order to when push rod about 73 slippage, avoids extraneous dust to enter and ejects in cylinder body 71, thus pollute fluid, affect the normal work of liftout tank 70.
As shown in Figure 1, preferably, the end face facing workbench 12 at slide block 13 offers the "T"-shaped groove 131 of multiple row first, the end face facing slide block 13 at workbench 12 offers the "T"-shaped groove 131 "T"-shaped groove 121 of multiple row second one to one with first.
Because hydraulic press can be equipped with different moulds, offering of the first "T"-shaped groove 131 and the second "T"-shaped groove 121 then can the installation of convenient mould.Different moulds, volume, shape etc. be difference to some extent, offers some first "T"-shaped groove 131 and second "T"-shaped grooves 121 more, can meet more demands, the versatility of hydraulic press is better, can also ensure that mould is installed more stable, also the position of upper/lower die can suitably be adjusted, accurate positioning.
In an initial condition, main piston 62 is positioned at Master cylinder body 61 to the four-column hydraulic press of this improvement, ejects piston 72 and is positioned at and ejects cylinder body 71, on slide block 13, workbench 12, dynamic, cover half is installed respectively, after all preparations complete, just can start switch board 30, carry out compacting work.According to different products, different production technologies, according to different drawing methods, can operate accordingly, suppress qualified product.The present invention is reasonable in design, easy to operate, versatility is good, is convenient to widely use.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. the four-column hydraulic press of an improvement, comprise fuselage, the fuel tank being arranged on fuselage side and the switch board be connected with fuel tank, the rectangular setting of described fuselage and be all equipped with guide pillar at four edges of fuselage, it is characterized in that, described fuselage comprises crossbeam, workbench and the slide block be arranged between crossbeam and workbench, described crossbeam, slide block and workbench three be arranged in parallel, each guide pillar is all from top to bottom successively through crossbeam, slide block and workbench, and each guide pillar is all by clamp nut and crossbeam, workbench is connected, vertically master cylinder is equipped with and master cylinder and fuel tank UNICOM in the middle part of crossbeam, described master cylinder comprises Master cylinder body and is plugged in the main piston in Master cylinder body, described main piston is connected by flange and slide block, the working clearance is there is between described flange and Master cylinder body end, described switch board can drive main piston with slide block towards workbench slippage straight down, and when main piston slippage straight down, the described working clearance becomes large gradually.
2. the four-column hydraulic press of a kind of improvement according to claim 1, is characterized in that, is arranged with fairlead at the end of main piston, and described fairlead and main piston are tightly connected and fairlead and Master cylinder body fit tightly.
3. the four-column hydraulic press of a kind of improvement according to claim 2, it is characterized in that, the end cap be set in fairlead circumferential lateral surface is installed at the end of Master cylinder body, on end cap, uniform ring is around being distributed with the some bolts axially arranged, each bolt is all connected with Master cylinder body through end cap, and the described working clearance faces between the end face of flange and flange at each bolt.
4. the four-column hydraulic press of a kind of improvement according to claim 3, is characterized in that, is fixed with back-up ring and back-up ring and end cap are connected at fairlead away from one end of Master cylinder body.
5. the four-column hydraulic press of a kind of improvement according to claim 3 or 4, it is characterized in that, described main piston inner hollow is arranged, the circumferential lateral surface of main piston end offer cannelure and this cannelure arc transition to the circumferential lateral surface of main piston end, described flange sleeve is located at cannelure place and in flange, is provided with the centring ring fitted tightly with cannelure bottom surface, described centring ring and flange compact siro spinning technology.
6. the four-column hydraulic press of a kind of improvement according to claim 1, it is characterized in that, each guide pillar is all arranged with two adjusting nuts, one of them adjusting nut is between crossbeam and slide block and be connected with the end face that crossbeam faces slide block, and another adjusting nut is between slide block and workbench and be connected with the end face of work top towards slide block.
7. the four-column hydraulic press of a kind of improvement according to claim 1, it is characterized in that, liftout tank is equipped with and liftout tank and master cylinder are coaxially arranged in the middle part of workbench, described liftout tank comprises ejecting cylinder body and being plugged in eject and ejects piston in cylinder body, the described circumferential lateral surface ejecting piston with eject cylinder body and be tightly connected, be inserted with and the push rod ejecting piston and be connected ejecting cylinder base, push rod is arranged with dust ring and dust ring with eject cylinder body and be connected.
8. the four-column hydraulic press of a kind of improvement according to claim 7, is characterized in that, be provided with the switch module that can control to eject piston stroke in push rod side, described switch module is electrically connected with switch board.
9. the four-column hydraulic press of a kind of improvement according to claim 1, it is characterized in that, the end face of slider surface towards workbench offers the "T"-shaped groove of some row first, the end face of work top towards slide block offers the "T"-shaped groove "T"-shaped groove of some row second one to one with first.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055443.5A CN104669660A (en) | 2015-02-03 | 2015-02-03 | Improved four-column hydraulic press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055443.5A CN104669660A (en) | 2015-02-03 | 2015-02-03 | Improved four-column hydraulic press |
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| CN104669660A true CN104669660A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510055443.5A Pending CN104669660A (en) | 2015-02-03 | 2015-02-03 | Improved four-column hydraulic press |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825355A (en) * | 2017-03-23 | 2017-06-13 | 莱芜钢铁集团有限公司 | A kind of connecting structure and hydraulic press |
| CN109760354A (en) * | 2019-01-04 | 2019-05-17 | 安徽天水液压机床科技有限公司 | A kind of four-column hydraulic press and its application method |
| CN110480017A (en) * | 2019-09-19 | 2019-11-22 | 佛山隆易科技有限公司 | A kind of forming method of metal parts |
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| DE3633807A1 (en) * | 1986-09-30 | 1988-04-07 | Mannesmann Ag | Sealing in hydraulic presses |
| DE19534419A1 (en) * | 1994-09-19 | 1996-03-21 | Sacmi | Ceramic tile press |
| CN1559792A (en) * | 2004-02-23 | 2005-01-05 | ���ִ�ѧ | Regulatable hydraulic machine with up and down both double moving |
| CN201405529Y (en) * | 2009-04-27 | 2010-02-17 | 梁新元 | Upper cylinder type high-speed tensile oil press |
| CN102582101A (en) * | 2012-02-17 | 2012-07-18 | 天津市天锻压力机有限公司 | Four-column forging hydraulic machine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3633807A1 (en) * | 1986-09-30 | 1988-04-07 | Mannesmann Ag | Sealing in hydraulic presses |
| DE19534419A1 (en) * | 1994-09-19 | 1996-03-21 | Sacmi | Ceramic tile press |
| CN1559792A (en) * | 2004-02-23 | 2005-01-05 | ���ִ�ѧ | Regulatable hydraulic machine with up and down both double moving |
| CN201405529Y (en) * | 2009-04-27 | 2010-02-17 | 梁新元 | Upper cylinder type high-speed tensile oil press |
| CN102582101A (en) * | 2012-02-17 | 2012-07-18 | 天津市天锻压力机有限公司 | Four-column forging hydraulic machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825355A (en) * | 2017-03-23 | 2017-06-13 | 莱芜钢铁集团有限公司 | A kind of connecting structure and hydraulic press |
| CN109760354A (en) * | 2019-01-04 | 2019-05-17 | 安徽天水液压机床科技有限公司 | A kind of four-column hydraulic press and its application method |
| CN110480017A (en) * | 2019-09-19 | 2019-11-22 | 佛山隆易科技有限公司 | A kind of forming method of metal parts |
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Application publication date: 20150603 |