CN206632280U - A kind of enclosed multi-ram forging hydraulic press - Google Patents

A kind of enclosed multi-ram forging hydraulic press Download PDF

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Publication number
CN206632280U
CN206632280U CN201720213812.3U CN201720213812U CN206632280U CN 206632280 U CN206632280 U CN 206632280U CN 201720213812 U CN201720213812 U CN 201720213812U CN 206632280 U CN206632280 U CN 206632280U
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ram
workpiece
pressure
press section
master cylinder
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CN201720213812.3U
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周凌华
许涛
康明敏
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HUZHOU MACHINE TOOL FACTORY
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HUZHOU MACHINE TOOL FACTORY
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Abstract

The utility model discloses a kind of enclosed multi-ram forging hydraulic press, when solving existing stamp forging hydraulic press workpieces processing, the technical problem of workpiece filling effect difference, enclosed multi-ram forging hydraulic press of the present utility model, including body, the body includes upper mould, lower mould and for driving the upper mould to complete with the lower mould hydraulic cylinder of die sinking and matched moulds, the body also includes being used for the workbench for installing the lower mould, being horizontally disposed with the workbench has extrusion oil cylinder, the extrusion oil cylinder includes Master cylinder body and the press section for extruding workpiece, the press section is arranged on the Master cylinder body and relatively described Master cylinder body does stretching motion, the pressurization part that relatively described press section does stretching motion is installed in the press section, workpiece is pressed further by after the pressurization part stress.

Description

A kind of enclosed multi-ram forging hydraulic press
【Technical field】
It the utility model is related to multi-ram forging hydraulic press technical field, more particularly to a kind of enclosed multi-ram forging hydraulic press.
【Background technology】
The workbench of enclosed multi-ram forging hydraulic press of the prior art is provided only with drift, when to workpiece forging molding, Workpiece to be processed of the drift extruding in die cavity, make workpiece plastic deformation to fill full die cavity, however, filling die cavity in workpiece During, because the extruding force that drift applies is smaller, therefore predominantly passively filled apart from the distal end of drift on workpiece, therefore It can not accomplish that filling is complete, filling effect is poor, reduces the Forming Quality of workpiece.
【Utility model content】
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art and to provide a kind of enclosed multidirectional Stamp forging hydraulic press, the filling effect of workpiece, the Forming Quality of lifting workpieces can be effectively improved.
In order to solve the above technical problems, the utility model adopts the following technical scheme that:
A kind of enclosed multi-ram forging hydraulic press, including body, the body include upper die and lower die and described for driving Mould completes the hydraulic cylinder of die sinking and matched moulds with the lower mould, and the body also includes being used for the workbench for installing the lower mould, institute State to be horizontally disposed with workbench and have extrusion oil cylinder, the extrusion oil cylinder includes Master cylinder body and the press section for extruding workpiece, institute Press section is stated on the Master cylinder body and relatively described Master cylinder body does stretching motion, relative institute is installed in the press section The pressurization part that press section does stretching motion is stated, workpiece is pressed further by after the pressurization part stress.
In above-mentioned enclosed multi-ram forging hydraulic press, the press section includes the pressure ram of split shaping and is slidably mounted on Main plunger on the Master cylinder body, the inner of the main plunger are inserted into Master cylinder body, and the outer end of the main plunger is squeezed with described Depression bar is fixedly connected.
In above-mentioned enclosed multi-ram forging hydraulic press, the lower mould is provided with the guiding being slidably matched with the pressure ram Hole.
In above-mentioned enclosed multi-ram forging hydraulic press, pressurizing chamber is provided with the main plunger, the pressure ram is provided with axle To through hole, the pressurization part includes the pressure plunger and pressure rod being fixedly connected, and the pressure plunger is slidably mounted on described add Intracavitary is pressed, the pressure rod is slidably mounted in the through hole.
In above-mentioned enclosed multi-ram forging hydraulic press, the pressurizing chamber is provided with hydraulic fluid port, and the hydraulic fluid port is connected with pressurization oil Road, the pressurized oil lines are provided with the magnetic valve for controlling the pressurized oil lines opening and closing.
In above-mentioned enclosed multi-ram forging hydraulic press, left side, right side, front side and the rear side of the lower mould are respectively provided with an institute The extrusion oil cylinder stated.
The beneficial effects of the utility model:
Enclosed multi-ram forging hydraulic press of the present utility model includes body, and body includes upper die and lower die and for driving Mould completes the hydraulic cylinder of die sinking and matched moulds with lower mould, and body also includes being used for the workbench for installing lower mould, and level is set on workbench Be equipped with extrusion oil cylinder, extrusion oil cylinder includes Master cylinder body and the press section for extruding workpiece, press section be arranged on Master cylinder body and Do stretching motion with respect to Master cylinder body, be provided with press section opposing compression portion do stretching motion and pressurization part, pressurization part stress After be pressed further by workpiece.Compared with prior art, the new press section of this reality is provided with press section and added equivalent to drift Stretching motion is done in splenium, pressurization part opposing compression portion, and in workpiece extrusion forming, workpiece is pressed further by after pressurization part stress, Now plastic deformation occurs under the effect of the pressure for workpiece further to fill die cavity, and thus the filling effect of lifting workpieces, is carried The Forming Quality of high workpiece.
Pressurizing chamber is provided with main plunger, pressure ram is provided with axially extending bore, and pressurization part includes the pressure plunger being fixedly connected And pressure rod, pressure plunger are slidably mounted in pressurizing chamber, pressure rod is slidably mounted in through hole.It is so designed that, increasing can be passed through The pressure of big pressurization intracavitary promotes pressure rod to stretch out, and gives workpiece high pressure in a flash, simple in construction, easy for installation.
Pressurizing chamber is provided with hydraulic fluid port, and hydraulic fluid port is connected with pressurized oil lines, and pressurized oil lines are provided with control pressurized oil lines opening and closing Magnetic valve.It is so designed that, by the electric and dead electricity that obtains of magnetic valve pressurized oil lines can be controlled to be opened and closed, and then control the pressure of pressurizing chamber Power, and then control the motion of pressure rod.
Left side, right side, front side and the rear side of lower mould are respectively provided with an extrusion oil cylinder.It is so designed that, according to processing part Shape selects the cylinder efficient of respective numbers, and the scope of application is wider, and versatility is stronger.
These features and advantage of the present utility model will be detailed in following embodiment, accompanying drawing exposure.
【Brief description of the drawings】
The utility model is described further below in conjunction with the accompanying drawings:
Fig. 1 is the top view of hydraulic press workbench in the utility model preferred embodiment;
Fig. 2 is the structural representation of extrusion oil cylinder in the utility model preferred embodiment;
Fig. 3 is that workpiece is extruded structural representation when filling die cavity in the utility model preferred embodiment.
【Embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment, Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model Protection domain.
Include body referring to figs. 1 to the enclosed multi-ram forging hydraulic press that shown in Fig. 2, the present embodiment proposes, body includes upper Mould, lower mould 1 and hydraulic cylinder, hydraulic cylinder are connected with upper mould, and drive upper mould to move back and forth with complete the die sinking of upper mould and lower mould 1 and Matched moulds, upper mould also include being used for the workbench for installing lower mould 1 with forming the die cavity for workpieces processing 8, body after the lower matched moulds of mould 1 2, being horizontally disposed with workbench 2 has extrusion oil cylinder, and extrusion oil cylinder includes Master cylinder body 3 and the press section 4 for extruding workpiece 8, crowded Splenium 4 is arranged on Master cylinder body 3 and relative Master cylinder body 3 does the stretching motion of horizontal direction, and opposing compression is provided with press section 4 The pressurization part 5 of stretching motion is done in portion 4, and workpiece 8 is pressed further by after the stress of pressurization part 5.Compared with prior art, this reality is new Press section 4 is provided with pressurization part 5, stretching motion is done in the opposing compression portion 4 of pressurization part 5, in work equivalent to drift in press section 4 During 8 extrusion forming of part, workpiece 8 is pressed further by after the stress of pressurization part 5, now plasticity change occurs under the effect of the pressure for workpiece 8 Shape is further to fill die cavity, the thus filling effect of lifting workpieces 8, improves the Forming Quality of workpiece 8.
Specifically, press section 4 includes the pressure ram 41 and main plunger 42 of split shaping, main plunger 42 is slidably mounted on master cylinder On body 3, i.e. the inner of main plunger is inserted into Master cylinder body 3, and the outer end of main plunger is fixedly connected with pressure ram 41, on Master cylinder body 3 Provided with the first hydraulic fluid port and the second hydraulic fluid port, the first hydraulic fluid port and the second hydraulic fluid port are separately positioned on the both sides of the shaft shoulder of main plunger 42, the first oil Mouth is connected with oil circuit 31, and oil circuit 31 is provided with control valve 32, and control valve 32 is magnetic valve, and electric or dead electricity is obtained by control valve 32 To control the opening and closing of oil circuit 31, the second hydraulic fluid port is communicated with fuel tank, control valve 32 electric opening oil circuit 31, the first hydraulic fluid port oil-feed, the Two hydraulic fluid ports are fuel-displaced, and main plunger 42 moves towards the direction of lower mould 1, and after pressure ram 41 moves in place, the dead electricity of control valve 32 is closed Oil circuit 31 carries out pressurize, and after workpiece 8 machines, the second hydraulic fluid port oil-feed, the first hydraulic fluid port is fuel-displaced, and main plunger 42 resets.
Die-cushion plate 6 is provided between the outer end of the main plunger of the present embodiment and pressure ram 41, the both ends of die-cushion plate 6 pass through screw It is fixedly connected respectively with main plunger 42 and pressure ram 41, lower mould 1 is provided with the pilot hole 11 connected with die cavity, and pressure ram 41 is with leading It is slidably matched to hole 11.
In addition, being provided with pressurizing chamber 420 in main plunger 42, pressure ram 41 is provided with axially extending bore, and pressurization part 5 includes fixed connect The pressure plunger 51 and pressure rod 52 connect, pressure plunger 51 are slidably mounted in pressurizing chamber 420, and pressure rod 52 is slidably mounted on logical In hole, one end of pressure rod 52 is fixedly connected with pressure plunger 51, and the other end slides extrudes workpiece 8, this implementation after through hole It is also associated with being oriented to transition block 7 between the pressure rod 52 and pressure plunger 51 of example, guiding transition block 7, which is slidingly sealed, is inserted into die-cushion In the axially extending bore of plate 6, being oriented to transition block 7 can lead further to the axial reciprocating slip of pressure rod 52.
Pressurizing chamber 420 in the present embodiment is provided with hydraulic fluid port, and hydraulic fluid port is connected with pressurized oil lines 9 and pressure release oil circuit (in figure not Show), pressurized oil lines 9 are provided with magnetic valve 10, and magnetic valve 10 controls the opening and closing of pressurized oil lines 9 by obtaining electric or dead electricity.When When pressurized oil lines 9 are opened, hydraulic oil is injected in pressurizing chamber 420, now hydraulic oil promotes pressurization part 5 to be moved towards the lower direction of mould 1, To be pressed further by workpiece 8, after pressure rod 52 advances in place, the dead electricity of magnetic valve 10 simultaneously enters packing state, works as work pieces process After the completion of, pressure release oil circuit is opened, and the hydraulic oil in pressurizing chamber 420 is back to fuel tank by pressure release oil circuit, and pressure rod 52 is towards master The direction of cylinder body 3 is mobile and resets.
Front side, rear side, left side, the right side of lower mould 1 of the present utility model are respectively provided with an extrusion oil cylinder, consequently, it is possible to can Make hydraulic pressure machining threeway part of the present utility model or straight-through part, and squeezed according to the selection of the processing request of part is suitable Compressing cylinder quantity.
The course of work of the enclosed multi-ram forging hydraulic press of the present utility model in the straight-through part of processing is as follows, such as Fig. 1 and 3 It is shown:
1st, in Driven by Hydraulic Cylinder mould move downward with the lower locked mode of mould 1, control valve 32 it is electric, oil circuit 31 is opened, the first hydraulic fluid port Oil-feed, each self-propelled pressure ram 41 of preceding main plunger 42, rear main plunger 42, left main plunger 42, right main plunger 42 is along pilot hole 11 Synchronous to advance to die cavity center, now pressure plunger 51 advances simultaneously with pressure rod 52 in company with main plunger 42, and main plunger 42 advances The dead electricity of control valve 32 and enter packing state after in place;
2nd, magnetic valve 10 is obtained electric, and pressurization hydraulic fluid port oil-feed is given with promoting left and right pressure plunger 51 and left and right pressure rod 52 to advance Give the high pressure in a flash of workpiece 8.
It because main plunger 42 is in packing state, therefore can ensure that pressure rod 52 stands fast, complete to enter one to workpiece 8 Step extruding, the left and right branch filling of workpiece 8 is mainly completed by left and right pressure ram 41 and pressure rod 52, and the front and rear branch of workpiece 8 Filling is mainly completed by front and rear pressure ram 41, therefore each the filling to region has special pressure ram to complete, and workpiece 8 is being pressed Plastic deformation occurs in the presence of power further to fill die cavity, is changed into by passive filling and actively filled, therefore improve work The filling effect of part 8, improve the Forming Quality of workpiece 8;In addition, hydraulic press of the present utility model divides mould up and down, upper mould moves nothing Need to be oriented to, and left and right horizontal power is symmetry status, therefore upper die and lower die are in direction of extrusion stress balance, without specially bearing to squeeze The mechanism of pressure, therefore structure is simpler;Finally, hydraulic pressure locked mode eliminates the self-locking situation of mechanical locked mode in the prior art, Hydraulic cylinder backhaul is only needed during die sinking, simply, reliably.
Certainly, if those skilled in the art need to improve the filling effect to the fore-and-aft direction of workpiece, control can also be passed through Pressure rod motion brings it about further plastic deformation to extrude workpiece before and after system, before and after thus user controls according to actual conditions The motion of four pressurization parts in left and right, the scope of application is wider, and versatility is stronger.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited to accompanying drawing and above specific embodiment party Content described in formula.Any modification without departing from function and structure principle of the present utility model is intended to be included in claims Scope in.

Claims (6)

1. a kind of enclosed multi-ram forging hydraulic press, including body, the body includes upper die and lower die and for driving the upper mould The hydraulic cylinder of die sinking and matched moulds is completed with the lower mould, the body also includes being used for the workbench for installing the lower mould, described Being horizontally disposed with workbench has extrusion oil cylinder, it is characterised in that the extrusion oil cylinder includes Master cylinder body and for extruding workpiece Press section, the press section is arranged on the Master cylinder body and relatively described Master cylinder body does stretching motion, is pacified in the press section The pressurization part of stretching motion is done equipped with relatively described press section, workpiece is pressed further by after the pressurization part stress.
2. enclosed multi-ram forging hydraulic press according to claim 1, it is characterised in that the press section is molded including split Pressure ram and the main plunger that is slidably mounted on the Master cylinder body, the inner of the main plunger is inserted into Master cylinder body, described The outer end of main plunger is fixedly connected with the pressure ram.
3. enclosed multi-ram forging hydraulic press according to claim 2, it is characterised in that the lower mould is provided with to be squeezed with described The pilot hole that depression bar is slidably matched.
4. enclosed multi-ram forging hydraulic press according to claim 2, it is characterised in that pressurization is provided with the main plunger Chamber, the pressure ram are provided with axially extending bore, and the pressurization part includes the pressure plunger and pressure rod being fixedly connected, the pressurization Plunger is slidably mounted in the pressurizing chamber, and the pressure rod is slidably mounted in the through hole.
5. enclosed multi-ram forging hydraulic press according to claim 4, it is characterised in that the pressurizing chamber is provided with hydraulic fluid port, The hydraulic fluid port is connected with pressurized oil lines, and the pressurized oil lines are provided with the magnetic valve for controlling the pressurized oil lines opening and closing.
6. the enclosed multi-ram forging hydraulic press according to one of claim 1 to 5, it is characterised in that the left side of the lower mould, Right side, front side and rear side are respectively provided with the extrusion oil cylinder described in one.
CN201720213812.3U 2017-03-07 2017-03-07 A kind of enclosed multi-ram forging hydraulic press Active CN206632280U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108515134A (en) * 2018-04-12 2018-09-11 二十二冶集团精密锻造有限公司 The shaping dies and manufacturing process of asymmetric four-way valve body
CN109500339A (en) * 2018-11-27 2019-03-22 唐山钢铁集团有限责任公司 Mould structure for valve body manufacture
CN109848232A (en) * 2018-12-17 2019-06-07 南京迪威尔高端制造股份有限公司 The automatic clamping device of the heavy dies of multidirectional double acting hydraulic extrusion press
CN111570695A (en) * 2020-05-25 2020-08-25 上海电机学院 Large three-way die forging device for power station equipment and die forging method thereof
CN115383029A (en) * 2022-08-31 2022-11-25 中冶重工(唐山)有限公司 Multidirectional die forging die for coupler knuckle forging of railway locomotive and forming process of multidirectional die forging die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108515134A (en) * 2018-04-12 2018-09-11 二十二冶集团精密锻造有限公司 The shaping dies and manufacturing process of asymmetric four-way valve body
CN109500339A (en) * 2018-11-27 2019-03-22 唐山钢铁集团有限责任公司 Mould structure for valve body manufacture
CN109848232A (en) * 2018-12-17 2019-06-07 南京迪威尔高端制造股份有限公司 The automatic clamping device of the heavy dies of multidirectional double acting hydraulic extrusion press
CN111570695A (en) * 2020-05-25 2020-08-25 上海电机学院 Large three-way die forging device for power station equipment and die forging method thereof
CN115383029A (en) * 2022-08-31 2022-11-25 中冶重工(唐山)有限公司 Multidirectional die forging die for coupler knuckle forging of railway locomotive and forming process of multidirectional die forging die

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