CN103879007A - Double-action hydraulic machine - Google Patents
Double-action hydraulic machine Download PDFInfo
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- CN103879007A CN103879007A CN201410104764.5A CN201410104764A CN103879007A CN 103879007 A CN103879007 A CN 103879007A CN 201410104764 A CN201410104764 A CN 201410104764A CN 103879007 A CN103879007 A CN 103879007A
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Abstract
The invention relates to a double-action hydraulic machine. The double-action hydraulic machine comprises a rack provided with an upper beam. An inner-side hydraulic cylinder and an outer-side hydraulic cylinder which are vertically arranged are fixedly arranged on the upper beam. The inner-side hydraulic cylinder is provided with a first piston used for being in transmission connection with an inner-side forming die, and the outer-side hydraulic cylinder is provided with a second piston used for being in transmission connection with an outer-side forming die, wherein the inner-side forming die is sleeved with the outer-side forming die. The double-action hydraulic machine can reduce the manufacturing cost of complex-shaped or large-scale metal parts.
Description
Technical field
The present invention relates to the double action hydraulic press for Metal Forming.
Background technology
In the plastic forming technology of modern times manufacture, hydraulic press occupies considerable status.Wherein widely used hydraulic press is double action hydraulic press, double action hydraulic press is mainly used at present: the vertical double action hydraulic press of (1) punching stretch, be mainly used to order and complete flanging and stretching two procedures, the Chinese patent disclosed " double action hydraulic press " that the concrete structure of such hydraulic press is CN1203381215U as publication number, this hydraulic press comprises column, the upper end of column is installed with entablature, the slidable fit that leads in turn in the below of entablature on column has master slider and blankholder slide, on entablature, be installed with the stretching hydraulic cylinder being in transmission connection with master slider, on master slider, be installed with the flanging hydraulic cylinder being in transmission connection with blankholder slide, in use, stretching Driven by Hydraulic Cylinder master slider is descending, when master slider is descending, drive blankholder slide descending, after the edge pressing mould on blankholder slide contacts with blank, master slider continues descending under the driving of stretching hydraulic cylinder, and by control flanging hydraulic cylinder flexible that blankholder slide is no longer continued is descending, edge pressing mould on blankholder slide only plays the flanging positioning action to blank, do not play moulding effect, therefore the pressure of flanging hydraulic cylinder does not need too large, on substrate, the power of flanging hydraulic cylinder all can meet instructions for use in the situation that being not more than stretching hydraulic cylinder power half, simultaneously blankholder slide is not owing to being forming slide, therefore the downstream rate of blankholder slide also can reach 10-45m/s, (2) the horizontal double forcing press of shape processing use, has been mainly used to the moulding of the surfaces externally and internally of section bar, and drives inside and outside mould order stripping.And in the forging and extrusion modling of metal parts, generally adopting at present vertical single action hydraulic press, the moulding of the simple and middle-size and small-size metal parts of correspondingly-shaped, adopts vertical single action hydraulic press forming device to have a clear superiority in.And for the moulding of complex-shaped or large-scale metal parts, the deficiency of vertical single action hydraulic press forming ability exposes undoubtedly.The method making up at present has: 1, constantly manufacture more large-tonnage single action hydraulic press, for forging or the large-scale metal parts of extrusion modling; 2, adopt the method that strengthens following process surplus, subsequent step is very loaded down with trivial details.Above-mentioned two kinds of methods all can significantly increase the processing cost of metal parts.And existing double action hydraulic press is compared single action hydraulic press, the one flanging program that be only also many, still can not meet the moulding demand of complicated or large-scale metal parts.
Summary of the invention
The object of the present invention is to provide a kind of double action hydraulic press that reduces complex-shaped or large-scale metal part manufacturing cost.
In order to address the above problem, technical scheme of the present invention is:
Double action hydraulic press, comprise the frame with entablature, on entablature, be installed with inner side hydraulic cylinder and the outside hydraulic cylinder of vertical layout, inner side hydraulic cylinder has the first piston for being in transmission connection with inner side shaping mould, and outside hydraulic cylinder has the second piston for being in transmission connection with the outside shaping mould that is set in shaping mould periphery, described inner side.
Described inner side hydraulic cylinder, outside hydraulic cylinder are coaxially set.
Described the second piston is hollow loop configuration, and the second piston bush is located at the periphery of described first piston.
Described outside hydraulic cylinder comprises the second cylinder body that axis extends along the vertical direction, described inner side hydraulic cylinder comprises the first cylinder body being coaxially set in described the second cylinder body, in the annular space that described the second piston guide slidable fit surrounds in first, second cylinder body.
Described outside hydraulic cylinder comprise there is inner sleeve, the second cylinder body of overcoat, described inner sleeve, overcoat are coaxially set, described inner side hydraulic cylinder comprises the first cylinder body that is fixedly arranged on described the second cylinder body upper end, described first piston comprises that the piston section of pilot seal slidable fit in the first cylinder body and guiding are arranged in the piston rod segment in the endoporus of described inner sleeve, described the second piston is hollow loop configuration, and the second piston seal guiding is slidedly assemblied in the annular space that inner sleeve, overcoat surround.
Described outside hydraulic cylinder has at least two, and each outside hydraulic cylinder is distributed in the periphery of described inner side hydraulic cylinder.
In described frame, lead along the vertical direction and be equipped with the outside slide block for described outside shaping mould is installed in the below of described entablature, the lower end of described the second piston is connected to drive outside slide block to move up and down with described outside slide block, on the slide block of outside, be provided with the pilot hole that runs through along the vertical direction slide block upper and lower end face, outside, the lower end of described first piston is connected with the inner side slide block for described inner side shaping mould is installed, and described inner side slider guide is arranged in described pilot hole.
Described frame comprises the column that four axis all extend along the vertical direction, and described outside slider guide is slidedly assemblied on described column, and described entablature is fixedly arranged on the upper end of described column.
On described column, be installed with sill in the below of described outside slide block.
Beneficial effect of the present invention is: or product that intensity high large to some deflections, if adopt an extrusion modling, because the deflection from blank to final finished process is larger, large tonnage hydraulic press must be used so, the acquisition cost of equipment and then the cost of manufacture of increase part can be increased like this.And in this double action hydraulic press, can make in use inner side shaping mould be connected with first piston, outside shaping mould is connected with the second piston, in the time that blank is carried out to extrusion modling, the first piston of inner side hydraulic cylinder first drives inner side shaping mould to move down blank is pushed, the first one-shot forming of blank like this, then outside hydraulic cylinder the second piston driving outside shaping mould move down to blank continues push, (or the second piston first drives outside shaping mould to move down blank is carried out to one-shot forming in blank post forming, then interior first piston drive inner side shaping mould moves down blank is carried out to post forming), that is to say that double action hydraulic press exported twice moulding action, blank is divided into twice extruding to the deflection in final finished process and completes like this, each deflection can be very not large, so just reduce the pressure tonnage demand to double action hydraulic press, reduce the manufacturing cost of double action hydraulic press and then reduced the cost of manufacture of metal parts.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention 1;
Fig. 2 is the cooperation schematic diagram of inner side, outside hydraulic cylinder in Fig. 1;
Fig. 3 is the inner side in embodiments of the invention 2, the cooperation schematic diagram of outside hydraulic cylinder;
Fig. 4 is the structural representation of embodiments of the invention 3.
Detailed description of the invention
The embodiment 1 of double action hydraulic press is as shown in Figure 1 and 2: comprise frame, frame comprises the column 3 that four axis extend along the vertical direction, the upper and lower end of column is installed with respectively entablature 1 and sill 4, on column, between upper and lower crossbeam, guiding is equipped with outside moving up and down slide block 2, and the lower end of outside slide block has the T-shaped groove for outside shaping mould is installed.The upper end of sill has the T-shaped groove for die is installed, and is provided with liftout tank 5 on sill.On entablature, be provided with inner side hydraulic cylinder 31 and the outside hydraulic cylinder 32 of vertical layout, inner side, outside hydraulic cylinder coaxial line is arranged, inner side hydraulic cylinder has first piston, outside hydraulic cylinder has the second piston 14, outside hydraulic cylinder comprises the second cylinder body, the second cylinder body comprises inner sleeve 9 and the overcoat 13 that coaxial line is wholely set, in the second piston guide sealing is slided and is assemblied in, in the annular space that overcoat surrounds, inner side hydraulic cylinder comprises the first cylinder body 11 that is fixedly arranged on the second cylinder body upper end, first piston comprises that the piston section of pilot seal slidable fit in the first cylinder body 12 and guiding are arranged in the piston rod segment 6 in the endoporus of inner sleeve, the second piston bush is located at the periphery of piston rod segment, the lower end of the second piston is fixedly connected with outside slide block.On the slide block of outside, offer the pilot hole 10 that axis extends along the vertical direction, the piston rod segment lower end of first piston is fixedly connected with and is useful on the inner side slide block 30 that inner side shaping mould is installed, inner side slide block and pilot hole guiding be slidably matched like this inside slide block can move up and down along pilot hole, when to blank moulding, outside forming die sleeve is located at shaping mould periphery, inner side.Outside shaping mould and inner side shaping mould are die in the present embodiment.
Inner hole extruding with large-scale cup-shaped component is shaped to example.For the inner hole extruding moulding of large-scale cup-shaped component, if adopt single action hydraulic press, must one-shot forming, complete the dimensional requirement of endoporus, need large-tonnage hydraulic press to realize.On double action hydraulic press of the present invention, can realize repeatedly moulding, concrete steps are as follows: molding concave die is installed on sill upper surface by (1), inner side shaping mould is installed on slide block lower surface, inner side, outside shaping mould is installed on forming slide lower surface, outside, (2) when extrusion modling, blank is put into die, (3) first piston drives inner side slide block, thereby drive inner side shaping mould to move down, blank in die is carried out to moulding for the first time, (4) after blank moulding for the first time, first piston is motionless, slide block outside the piston driving of outside, thereby drive outside shaping mould to move down, described blank is carried out to post forming.(5) if through twice moulding, reach the endoporus dimensional requirement of large-scale cup-shaped component, after finishing, blank moulding by liftout tank, product is ejected in by die.If through twice moulding, do not reach yet the endoporus dimensional requirement of large-scale cup-shaped component, can change punch and carry out moulding for the third time, concrete steps are as follows: (6) lay down inner side shaping mould and outside shaping mould, (7) by with post forming after product in hole dimension (i.e. outside shaping mould size) three mould cores of a size, be installed on slide block lower surface, inner side, three times forming convax mould is installed on slide block lower surface, outside, (8) blank after post forming is put into die, (9) first piston drives inner side slide block, thereby drive the mold cores of three moulding to move down, until contact with blank endoporus bottom, (10) first piston is motionless, slide block outside the piston driving of outside, thereby drive three forming convax moulds to move down, described blank is carried out to three machine-shaping.(11) by that analogy, punch of every replacing, can accumulate once moulding subsequently, until interior hole dimension reaches requirement.So just the extrusion modling of large-scale cup shell can be divided into multiple working procedure and carry out, the extruding force of each procedure will reduce thereupon.The moulding of carrying out in patent of invention based on the vertical double action oil hydraulic press of this part, can be cold forming or warm moulding, when through the warm moulding of row, need to consider the effect of expanding with heat and contract with cold of blank and mould.Outside hydraulic cylinder in double action hydraulic press of the present invention is also for moulding, therefore the pressure that medial and lateral hydraulic cylinder provides is consistent substantially, because outside hydraulic cylinder is also for moulding, the downstream rate of outside slide block is very slow simultaneously, and the downstream rate of outside slide block is generally at 8 ~ 20mm/s.
In the time of extruding aximal deformation value or the very high product of intensity, blank is divided into repeatedly and completes to the deflection of finished product like this, do not need king-sized extruding force at every turn, thereby reduced the pressure tonnage demand to double action hydraulic press, reduced the cost of manufacture of double action hydraulic press.
In of the present invention other implemented: the number of column can also be two, three or more; Frame can also be frame structure, and bulk strength and the rigidity of frame structure are better, now between outside slide block and frame, is slidably matched by dovetail, dovetail groove guiding; Medial and lateral slide block also can not established, and now medial and lateral shaping mould directly can be fixed on first, second piston; Medial and lateral shaping mould can also be punch, now needs die to be installed on sill.
The embodiment 2 of double action hydraulic press is as shown in Figure 3: embodiment 2 as different from Example 1, outside hydraulic cylinder comprises the second cylinder body 22 that axis extends along the vertical direction, the second cylinder body becomes downward opening cup-shaped structure, inner side hydraulic cylinder comprises the first cylinder body 11 that axis extends along the vertical direction, the first cylinder body 11 is coaxially set in the second cylinder body 22, in the first cylinder body, be provided with and in the annular space between first piston 12, the first cylinder bodies, the second cylinder body, be provided with the second piston 14.Fig. 3 middle term 2 represents outside slide block.
The embodiment 3 of double action hydraulic press is as described in Figure 4: as different from Example 1, the axis of outside hydraulic cylinder 32 is parallel with the axis of inner side hydraulic cylinder 31 for embodiment 3, and outside hydraulic cylinder has two, and two outside hydraulic cylinders are distributed in the periphery of inner side hydraulic cylinder.Fig. 4 middle term 1 represents entablature; Item 2 represents outside slide blocks; Item 3 represents columns; Item 4 represents sills; Item 5 represents liftout tanks.In other embodiments of the invention, the number of inner side hydraulic cylinder can also be two, three or more, and the number of outside hydraulic cylinder can also be three, four or more.
Claims (9)
1. double action hydraulic press, comprise the frame with entablature, it is characterized in that: the inner side hydraulic cylinder and the outside hydraulic cylinder that on entablature, are installed with vertical layout, inner side hydraulic cylinder has the first piston for being in transmission connection with inner side shaping mould, and outside hydraulic cylinder has the second piston for being in transmission connection with the outside shaping mould that is set in shaping mould periphery, described inner side.
2. double action hydraulic press according to claim 1, is characterized in that: described inner side hydraulic cylinder, outside hydraulic cylinder are coaxially set.
3. double action hydraulic press according to claim 2, is characterized in that: described the second piston is hollow loop configuration, and the second piston bush is located at the periphery of described first piston.
4. double action hydraulic press according to claim 3, it is characterized in that: described outside hydraulic cylinder comprises the second cylinder body that axis extends along the vertical direction, described inner side hydraulic cylinder comprises the first cylinder body being coaxially set in described the second cylinder body, in the annular space that described the second piston guide slidable fit surrounds in first, second cylinder body.
5. double action hydraulic press according to claim 2, it is characterized in that: described outside hydraulic cylinder comprise there is inner sleeve, the second cylinder body of overcoat, described inner sleeve, overcoat are coaxially set, described inner side hydraulic cylinder comprises the first cylinder body that is fixedly arranged on described the second cylinder body upper end, described first piston comprises that the piston section of pilot seal slidable fit in the first cylinder body and guiding are arranged in the piston rod segment in the endoporus of described inner sleeve, described the second piston is hollow loop configuration, and the second piston seal guiding is slidedly assemblied in the annular space that inner sleeve, overcoat surround.
6. double action hydraulic press according to claim 1, is characterized in that: described outside hydraulic cylinder has at least two, and each outside hydraulic cylinder is distributed in the periphery of described inner side hydraulic cylinder.
7. according to the double action hydraulic press described in claim 1 ~ 6 any one, it is characterized in that: in described frame, lead along the vertical direction and be equipped with the outside slide block for described outside shaping mould is installed in the below of described entablature, the lower end of described the second piston is connected to drive outside slide block to move up and down with described outside slide block, on the slide block of outside, be provided with the pilot hole that runs through along the vertical direction slide block upper and lower end face, outside, the lower end of described first piston is connected with the inner side slide block for described inner side shaping mould is installed, and described inner side slider guide is arranged in described pilot hole.
8. double action hydraulic press according to claim 7, is characterized in that: described frame comprises the column that four axis all extend along the vertical direction, and described outside slider guide is slidedly assemblied on described column, and described entablature is fixedly arranged on the upper end of described column.
9. double action hydraulic press according to claim 8, is characterized in that: on described column, be installed with sill in the below of described outside slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104764.5A CN103879007B (en) | 2014-03-20 | 2014-03-20 | Two dynamic hydropress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104764.5A CN103879007B (en) | 2014-03-20 | 2014-03-20 | Two dynamic hydropress |
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| CN103879007A true CN103879007A (en) | 2014-06-25 |
| CN103879007B CN103879007B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410104764.5A Active CN103879007B (en) | 2014-03-20 | 2014-03-20 | Two dynamic hydropress |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704300A (en) * | 2017-02-09 | 2017-05-24 | 中国科学院武汉岩土力学研究所 | Static load and dynamic load parallel connection oil cylinder |
| CN109702129A (en) * | 2019-02-27 | 2019-05-03 | 河南科技大学 | Liquid forging device and its booster body |
| CN109702128A (en) * | 2019-02-27 | 2019-05-03 | 河南科技大学 | A kind of supercharging device and its booster body |
| CN109746276A (en) * | 2019-02-27 | 2019-05-14 | 河南科技大学 | A kind of hydraulic press for wheel hub forming |
| CN114799001A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Hot processing method for forming large-size storage box hemisphere blank by adopting single-action hydraulic press |
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| US6688211B1 (en) * | 2002-02-20 | 2004-02-10 | Vu H. Viet | Dual linear actuator |
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| CN101774006A (en) * | 2009-12-22 | 2010-07-14 | 高禹丰 | Four-post vertical hydraulic equipment used for liquid metal casting and forging molding |
| CN101896312A (en) * | 2007-08-16 | 2010-11-24 | 黑根沙伊特-Mfd有限公司及两合公司 | Hydraulic wheel set press |
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| CH359979A (en) * | 1957-06-29 | 1962-01-31 | Miag Muehlenbau & Ind Gmbh | Servo motor for operating two machine parts |
| US3012541A (en) * | 1959-04-02 | 1961-12-12 | Pneumo Dynamics Corp | Timed delay actuator |
| US6688211B1 (en) * | 2002-02-20 | 2004-02-10 | Vu H. Viet | Dual linear actuator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704300A (en) * | 2017-02-09 | 2017-05-24 | 中国科学院武汉岩土力学研究所 | Static load and dynamic load parallel connection oil cylinder |
| CN109702129A (en) * | 2019-02-27 | 2019-05-03 | 河南科技大学 | Liquid forging device and its booster body |
| CN109702128A (en) * | 2019-02-27 | 2019-05-03 | 河南科技大学 | A kind of supercharging device and its booster body |
| CN109746276A (en) * | 2019-02-27 | 2019-05-14 | 河南科技大学 | A kind of hydraulic press for wheel hub forming |
| CN109702129B (en) * | 2019-02-27 | 2020-03-13 | 河南科技大学 | Liquid forging device and pressurizing mechanism thereof |
| CN114799001A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Hot processing method for forming large-size storage box hemisphere blank by adopting single-action hydraulic press |
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| Publication number | Publication date |
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| CN103879007B (en) | 2016-06-08 |
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