CN107008840B - Hydraulic rapid forging press - Google Patents
Hydraulic rapid forging press Download PDFInfo
- Publication number
- CN107008840B CN107008840B CN201710389510.6A CN201710389510A CN107008840B CN 107008840 B CN107008840 B CN 107008840B CN 201710389510 A CN201710389510 A CN 201710389510A CN 107008840 B CN107008840 B CN 107008840B
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- Prior art keywords
- oil
- close
- hole
- switch
- oil cylinder
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/46—Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/22—Drives for hammers; Transmission means therefor for power hammers
- B21J7/28—Drives for hammers; Transmission means therefor for power hammers operated by hydraulic or liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses hydraulic rapid forging press, the displacement sensor including the oil cylinder and fixed setting that are connect with hydraulic reversing valve；The transformation and on-off of liquid flow path direction are realized by the rotation of spool, reach the circle of Spool rotating one and realizes that the in-oil cylinder piston rod being connected with valve body completes primary pushing and uplink, cooperate displacement sensor by the rotary valve in this quick forging machine, is able to achieve the precision for automatically controlling forging's block dimension.The configuration of the present invention is simple, easy to operate, high degree of automation, by that spool can be made to stop rotating in corresponding position close to the setting of switch to complete required operation；After rotary valve of the invention is connected with oil cylinder, pneumatic hammer can be substituted, realizes that short stroke is forged fastly, with small vibration, low noise, cost performance are high.
Description
Technical field
The present invention relates to hydraulic rapid forging press.
Background technique
In forging industry, pneumatic hammer, Single arm can all generate noise and vibration（Advanced by the piston rod in working cylinder real
It now forges, stroke is long, and vibration is big, noise is big）, worker has on earphone operation, and occupational disease, ear are clever, so thoroughly changing this one side
Looks are very urgent.
The structure of current pneumatic hammer such as https:Described in //tieba.baidu.com/p/4102184019, action process
It is when the rotation of motor drive crankshaft connecting rod system, when compression piston is above pushed away in compression cylinder, compression cylinder upper air
Enter working cylinder top by upper stopcock, the air of working cylinder lower part enters compression cylinder by lower stopcock, at this moment on working cylinder
Under the action of portion's compressed air and tup self weight, complete to move downward.When compression piston moves downward, air flow direction with it is above-mentioned
Situation is on the contrary, tup completes ascending motion.Its vibration is big, noise is big.
Summary of the invention
Present invention mainly solves the technical issues of be, hydraulic rapid forging press is provided, is connected with a rotary valve, passes through spool
Rotation realize rotation turn around it is interior complete two oil circuits on-off, setting close to switch cooperation sender set on magnetic patch can
The degree of automation of this rotary valve is greatly improved and realizes the reliable control of different oil circuits；And due to oil cylinder rodless cavity and rod chamber
Area ratio it is very big, so can rapidly realize backhaul with the hydraulic oil of smaller flow, so being also able to achieve with accumulator fast
Fast backhaul, it is low cost, easy to use, reliable, it is with small vibration, noise is small；And the configuration of the present invention is simple needs element may be as few as
Only three：Variable pump, rotary valve, oil cylinder.
The technical solution adopted by the present invention to solve the technical problems is：Hydraulic rapid forging press, including connect with hydraulic reversing valve
Oil cylinder and fixed setting displacement sensor, distance of the piston rod of the oil cylinder apart from oil cylinder inner wall be 2mm-50mm；Institute
The spool that hydraulic reversing valve includes the stepped cylindrical bodily form to be stated, the valve body of the cavity for Spool rotating is inside set, cavity is cylindrical,
And it runs through valve body along valve core axis direction, valve body is equipped with the end cap for closed valve；Valve body is equipped with oil inlet and goes out
Hydraulic fluid port further includes the oil cylinder interface being arranged on end cap or valve body；The first oil-through-hole and second being connected is additionally provided on spool
Oil-through-hole, the side of the maximum cylindrical body of spool are equipped with one and pass in and out oily dashpot, the oily dashpot of the disengaging and the second logical oil
Hole is connected, and oil cylinder interface is connected with the first oil-through-hole；The connection of the rodless cavity side of third hydraulic fluid port and oil cylinder, the second hydraulic fluid port,
The rod chamber of oil cylinder is connected with fuel tank, further includes the oil-servicing facilities being connected with the rod chamber of the first hydraulic fluid port and oil cylinder.Cavity can be with
Be designed to unidirectionally to pass through valve body or it is two-way pass through valve body, then the closing, complete of entire valve body is completed by the corresponding design such as valve deck；
The lower end of valve body is arranged in third hydraulic fluid port（Valve core axis are vertical when i.e. valve body works）.Spool is the stepped cylindrical bodily form.The
One hydraulic fluid port, the second hydraulic fluid port and third hydraulic fluid port are all oil inlet and outlet.The piston rod of rod chamber part is arranged very thick, almost with cylinder body
Internal diameter it is close because mainly need to only overcome the gravity of piston rod when backhaul, and for achieve the purpose that it is of the invention forge fastly, because
This is designed in this way, and quick return can be realized by oil-servicing facilities such as oil pump or accumulator again in this way, and in this way without back pressure.Spool
Axis be equipped with the first oil-through-hole, the bottom end of the first oil-through-hole and the bottom end of valve body are corresponding；Preferred technical solution is valve
Shape the second oil-through-hole identical with the first oil-through-hole, the axis of the axis of the second oil-through-hole and the first oil-through-hole are additionally provided on core
Vertically（Certain out of plumb can also be with）.If relying on rotary valve merely, the speed of working condition can only be controlled, not can control and to forge
Precision, therefore displacement sensor is cooperated by rotary valve, it is able to achieve the precision for automatically controlling forging's block dimension.
As the further improvement of hydraulic rapid forging press of the present invention, distance of the piston rod of oil cylinder apart from oil cylinder inner wall is 5mm；
The oil-servicing facilities is variable pump；Or the oil-servicing facilities is an oil pump being connected with the first hydraulic fluid port and one and oil cylinder has
The connected accumulator of rod cavity.Institute's displacement sensors are stay-supported type displacement sensor, and stay-supported type displacement sensor is fixedly connected on
On oil cylinder, bracing wire is connected on the bared end of the piston rod of oil cylinder.Certainly, accumulator can also be replaced with oil pump.But most preferably
Scheme be only to need one in this way and pump using variable pump（An oil pump is also needed just may be used plus an accumulator compared to more aforementioned）,
And its adaptation range is wider in this way, since it is considered that not needing sometimes quickly, at this moment variable pump is just able to satisfy this requirement.
Using accumulator（Built-in inert gas）Pressure can be increased, it can be suitable on the forging press of 500KG, 750KG.Due to forging fastly
When stroke it is very short, 40 millimeters can be designed as fast forging stroke.Forging and stamping block is generally fixedly mounted on the bared end of piston rod, leads to
The forward motion for crossing oil cylinder realizes the pushing of forging and stamping block；The bracing wire of stay-supported type displacement sensor is connected in forging and stamping block or is tied to forging and stamping
On block, precision is forged in this way and is controlled.Oil-servicing facilities is using the oil pump of small flow being connected with the first hydraulic fluid port and one
The accumulator being connected with the rod chamber of oil cylinder；If designed in oil cylinder using common displacement sensor.
As the further improvement of hydraulic rapid forging press of the present invention, the first oil-through-hole and the second oil-through-hole shape are at L-shaped；The oil
Cylinder interface is straight hole；Or oil cylinder interface is L shape hole or T-shaped hole, or for by several radial transverse holes and a vertical hole
The oil-through-hole of composition, transverse holes are connect with oil cylinder.When oil cylinder interface is T-shaped hole, this valve is to connect to realize phase with two oil cylinders
It should act, it is the oil inlets simultaneously of two oil cylinders, fuel-displaced simultaneously；T-shaped hole is considered as two lateral oil cylinder interfaces, two lateral oil
Axis of the axis of cylinder interface perpendicular to oil inlet and outlet；The area for passing in and out oily dashpot is larger, this ensure that in valve
The oil mass that core rotates to oil inlet when passing in and out oily dashpot towards oil inlet is descending, and fuel-displaced oil mass is ascending, i.e. oil mass
Variation gradually change, reduce impact；First oil-through-hole of spool and the aperture of the second oil-through-hole are the stream by oil return
Amount（That is the oil return of oil cylinder, corresponding to oil inlet direction on spool is direction of the oil cylinder interface to oil outlet）Flow design, no
It is the flow design by oil inlet；When Spool rotating to certain angle（When passing in and out oily dashpot against oil inlet）Hydraulic oil from into
Hydraulic fluid port enters oil cylinder interface, and oil inlet, oil outlet are blocked when valve core rotation to other angles, and not into not going out, spool turns oil
It moves to another angle（Actual conditions are an angular ranges, and specific angular range depends on the oil inlet distance disengaging of valve body
The distance of oily dashpot and the size of oil inlet also pass in and out the depth of oily dashpot）When only oil inlet is blocked, hydraulic oil
Enter oil outlet from oil cylinder interface, so completing the on-off of two different oil circuits in the circulation that rotation turns around 360 °, such as
This valve is applied in forging machine then realization and recycles the primary pushing of interior completion, pause, uplink and pause at one 360 ° by fruit.Control valve
Core revolving speed per minute is exactly pushing number per minute.Preferably technical solution is：Oil inlet and the oil outlet phase on valve body
To setting, the axis of the axis of oil inlet and outlet perpendicular to spool；The bottom end or top of valve body is arranged in oil cylinder interface, oil
Cylinder interface is overlapped if straight hole with the axis of spool；Oil cylinder interface is also not necessarily completely vertical if L shape hole or T-shaped hole
L shape or "T"-shaped；Oil cylinder interface has several transverse holes just to connect several oil cylinders, and Multi-cylinder can be achieved in this way and forge jointly.
As the further improvement of hydraulic rapid forging press of the present invention, cavity extends upward through valve body in valve core axis side, in valve body
Cavity both ends be respectively equipped with upper cover and lower cover, the outer shape of upper cover and the upper end of cavity match, the outer shape of lower cover
Match with the lower end of cavity, the center of upper cover is equipped with the first through hole for the cylindrical body rotation at the top of spool, in lower cover
The heart is equipped with the oil cylinder interface that is connected with the bottom end of the first oil-through-hole, the " T " shape hole of oil cylinder interface, "T"-shaped hole it is vertical
Hole is connected with the bottom end of the first oil-through-hole, and two transverse holes in "T"-shaped hole are connected with two oil cylinders respectively, and each transverse holes are logical
A rotary valve interface is crossed to be connected with external oil circuit；Valve interior wall is equipped with the rotary valve baffle ring for being used to support lower cover of annular, leads to
Bolt is crossed to be fixedly connected with lower cover；The cabinet for closed valve is additionally provided with above the upper cover, cabinet is shell-like structure, is led to
Several bolts are crossed to be fixedly connected on valve body and/or upper lid.
As the further improvement of hydraulic rapid forging press of the present invention, cavity extends upward through valve body in valve core axis side, in valve body
Cavity both ends be respectively equipped with and upper cover and be used to support the rotary valve bearing block of spool, the outer shape of upper cover and the upper end of cavity
Match, the outer shape of rotary valve bearing block and the lower end of cavity match, and the center of upper cover is equipped at the top of spool
The first through hole of cylindrical body rotation, it is logical that the center of rotary valve bearing block is equipped with second to be connected with the bottom end of the first oil-through-hole
Hole, the oil cylinder interface are equipped with one, and oil cylinder interface is connected with the first oil-through-hole；Cavity lower end is equipped with being used to support for annular
The rotary valve baffle ring of rotary valve bearing block is fixedly connected by bolt with rotary valve bearing block；It is additionally provided with above the upper cover
For the cabinet of closed valve, cabinet is shell-like structure, is fixedly connected on valve body by several bolts.
As the further improvement of hydraulic rapid forging press of the present invention, valve body is cuboid or cylindrical；The top of spool
The center of cylindrical body is equipped with for the driving hole with motor axis connection；Connect on the nose-circle cylinder of the spool by the way that flat key is fixed
Connect the sender set of annular, sender set is equipped with one or four magnetic patch, set on the cabinet there are four or five close to switch.When
It is corresponding close to four difference in switch when for four magnetic patch, only corresponding magnetic patch go to it is corresponding close under switch, that
It is a to be just powered close to switch, carry out corresponding operating.When for a magnetic patch, as long as being then that this magnetic patch is turned to close to switch
Under, it is corresponding to be just powered close to switch, complete corresponding operation；Certainly, close to switch be not limited to be provided only on sender set just on
Side, can also be connected by line on the side of valve body, corresponding different as long as meeting magnetic patch turns to different target positions
Angle is powered close to switch；Sender set is annular, can be circular ring shape, be also possible to six in annular, four annular etc.
Other annulars.（It certainly have to be not necessarily driving hole, it can also by shaft coupling etc.）.More preferably scheme is motor and transmission
One speed reducer is set between hole, and such as cycloidal planetary gear speed reducer realizes there is no speed after driving to the revolving speed of motor on spool
It is so fast, reach revolving speed when a suitable job.
As the further improvement of hydraulic rapid forging press of the present invention, set close to switch there are five, respectively count close to switch,
First is slow close to switch face disengaging oil close to switch and the 4th close to switch, first close to switch, second close to switch, third
The middle part of jet-bedding, first divides close to switch in counterclockwise circular close to switch, the close switch of third with the 4th close to switch, second
Cloth；The center institute of the two sides and spool that pass in and out oily dashpot is 110 ° -130 ° at central angle.It counts close to the position of switch only
It is not arranged at other close switches, because the purpose of itself is exactly in order to count, after connecting with digital display device
Spool corotation how many circle shown；It interior realize the uplink of hydraulic oil, downlink to realize to enclose in Spool rotating one and twice pauses（It is right
It should push, uplink and twice stop to i.e. piston rod on the oil cylinder being connected with valve body）, pass in and out the level of oily dashpot in the middle
The center of two-end-point and spool on section is optimal case in 120 ° of central angle, and certainly, specific angle can also be adjusted suitably
It is whole.
As the further improvement of hydraulic rapid forging press of the present invention, there are four magnetic patch is set, for the first magnetic being located on the same circle
Block, the second magnetic patch, third magnetic patch and the 4th magnetic patch, the first magnetic patch face pass in and out the middle part of oily dashpot, and the second magnetic patch is located at the
One magnetic patch rotates clockwise on 45 ° to 60 ° of position, and third magnetic patch is located at the position that the first magnetic patch rotates 0 ° to 60 ° counterclockwise
On, the 4th magnetic patch is corresponding with the second magnetic patch.
As the further improvement of hydraulic rapid forging press of the present invention, magnetic patch is equipped with one, and position face passes in and out oily dashpot
Middle part.In this way when sender set is rotated together with spool, when magnetic patch turns to first close to below switch, first is close
Switch is powered（Second close switch, third switch power loss close to switch and the 4th are close）, sender makes servo motor stop and stop
Vehicle passes in and out oily dashpot in this way and just faces the first hydraulic fluid port on valve body always（Since the first hydraulic fluid port on valve body connects always
An oil pump）, at this moment hydraulic oil flows to third hydraulic fluid port from the first hydraulic fluid port, since third hydraulic fluid port is ined succession the rodless cavity of oil cylinder, oil
The piston rod downlink of cylinder is completed to push the work forged, when magnetic patch turns to second close to switch or the 4th close switch lower section
When（At this moment oily dashpot neither the second hydraulic fluid port of the first hydraulic fluid port of face nor face is passed in and out）, second is close close to switch or the 4th
Switch is powered, and sender makes servo motor stop and brake, and hydraulic oil is not into going out, the piston rod for the oil cylinder ined succession with third hydraulic fluid port
Not uplink also not downlink, carries out stopping movement.When magnetic patch turns to third close to immediately below switch（At this moment oily dashpot is passed in and out
Face the second hydraulic fluid port）, third is close to switch energization, and sender makes servo motor stop and brake, in addition the rod chamber of oil cylinder is also
An oil pump is connected, therefore at this moment hydraulic oil flows to the second hydraulic fluid port from third hydraulic fluid port always, corresponding to is its piston on oil cylinder
Bar uplink completes the movement of backhaul.
As the further improvement of hydraulic rapid forging press of the present invention, second is identical close to switch with the 4th close to switch, wherein
Any one with the second magnetic patch or the 4th magnetic patch to it is corresponding when；First is corresponding with the first magnetic patch close to switching；The close switch of third
It is corresponding with third magnetic patch；First is different from the transmitting signal of third close to switch close to switch, second close to switch.
The present invention is realized by the rotation of spool is revolving the interior on-off and transformation for completing two oil circuits that turn around, and setting connects
Magnetic patch on nearly switch cooperation sender set can be greatly improved the degree of automation of this rotary valve and realize the reliable control of different oil circuits
System, it is corresponding close to switch energization when realizing that valve core rotation arrives different station, so that servo motor shuts down and brakes
It is continued for carrying out the oil inlet of corresponding oil circuit；It is low cost, easy to use, reliable, it is with small vibration, noise is small；And due to oil cylinder without
Rod cavity and the area ratio of rod chamber are very big, so backhaul can be rapidly realized with the hydraulic oil of smaller flow, so using accumulation of energy
Device is also able to achieve quick return, and backhaul is without back pressure；The configuration of the present invention is simple needs element to may be as few as only three：Become
Measure pump, rotary valve, oil cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hydraulic reversing valve in hydraulic rapid forging press embodiment one of the present invention；
Fig. 2 is the schematic diagram of valve body in Fig. 1；
Fig. 3 is the schematic diagram in A-A direction of Fig. 2；
The top view of this Fig. 2 of Fig. 4；
Fig. 5 be Fig. 1 in spool be rotated by 90 ° counterclockwise after schematic diagram；
Fig. 6 is the C-C of Fig. 5 to schematic diagram；
Fig. 7 is the B-B direction schematic diagram of Fig. 5；
Fig. 8 is the K-K of Fig. 5 to schematic diagram；
Fig. 9 is the D-D of Fig. 8 to schematic diagram；
Figure 10 is the schematic diagram of cabinet in Fig. 1；
Figure 11 is the schematic diagram of sender set in Fig. 1；
Figure 12 is the right view of Figure 11；
Figure 13 is the schematic diagram of upper cover in Fig. 1；
Figure 14 is the schematic diagram of lower cover in Fig. 1；
Figure 15 is the schematic diagram of rotary valve interface in Fig. 1；
Figure 16 is the schematic diagram of rotary valve baffle ring in Fig. 1；
Figure 17 is the top view of Figure 16；
Figure 18 is the schematic diagram of cycloidal planetary gear speed reducer in Fig. 1；
Figure 19 is the structural schematic diagram of the hydraulic reversing valve in the present embodiment two；
Figure 20 is the schematic diagram of valve body in Figure 19；
Figure 21 is the schematic diagram of cabinet in Figure 19；
Figure 22 is the schematic diagram of upper cover in Figure 19；
Figure 23 is the schematic diagram of rotary valve bearing block in Figure 19；
Figure 24 is another structural schematic diagram of embodiment two；
Figure 25 is that Fig. 6 rotates clockwise the schematic diagram after 90 °；
Figure 26 is the structural schematic diagram of the embodiment of the present invention two；
Figure 27 be spool in the embodiment of the present invention one, sender set and cabinet close to switch initial position schematic diagram；
Figure 28 turns to the second schematic diagram close under switch of cabinet for the second magnetic patch on the sender set in Figure 27；
Figure 29 is that the third magnetic patch on the sender set in Figure 27 turns to schematic diagram of the third of cabinet close under switching；
Figure 30 turns to the 4th schematic diagram close under switch of cabinet for the second magnetic patch on the sender set in Figure 27；
Figure 31 be middle spool in the embodiment of the present invention two, sender set and cabinet close to switch initial position signal
Figure；
Figure 32 is that the first magnetic patch on the sender set in Figure 31 turns to the second schematic diagram close under switch；
Figure 33 is that the first magnetic patch on the sender set in Figure 31 turns to third close to the schematic diagram under switch；
Figure 34 is that the first magnetic patch on the sender set in Figure 31 turns to the 4th schematic diagram close under switch；
Figure 35 is top view of the Fig. 5 along its axis profile figure.
In figure：1, valve body 2, spool 3, cavity 4, the first hydraulic fluid port 5, the second hydraulic fluid port 6, third hydraulic fluid port 7,
One oil-through-hole 8, the second oil-through-hole 9 pass in and out oily dashpot 10, upper cover 11, lower cover 12, first through hole 13, the
Two through-hole 13-1, vertical hole 13-2, transverse holes 14, rotary valve interface 15, rotary valve baffle ring 16, bolt 17,
Cabinet 18, driving hole 20, sender set 21, the first magnetic patch 22, is counted close to switch rotary valve bearing block 19
23, the close switch of the second magnetic patch 24, third magnetic patch 25, the 4th magnetic patch 26, cycloidal planetary gear speed reducer 27, first
28, the second close switch 29, the close switch the 30, the 4th of third close switch 31, oil pump 32, fuel tank 33, oil cylinder
34, stay-supported type displacement sensor.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only
For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment one：
As shown in Fig. 1 to Figure 18 and Figure 35, hydraulic rapid forging press, including the oil cylinder 33 being connect with hydraulic reversing valve and fixed setting
Displacement sensor；The shortest distance of the piston rod of the oil cylinder 33 apart from oil cylinder face is 5mm；The hydraulic reversing valve includes valve
Body 1, spool 2 and end cap, valve body 1 is interior to be equipped with one for the cavity 3 that spool 2 rotates, and spool 2 is the stepped cylindrical bodily form, cavity 3
Match with the shape of spool 2, valve body 1 is run through at the both ends along 2 axis direction of spool of cavity 3, is run through on valve body 1 by cavity 3
Part be equipped with can be by the closed end cap of valve body 1；Valve body 1 be equipped with the first hydraulic fluid port 4, the second hydraulic fluid port 5 and third hydraulic fluid port 6, first
Hydraulic fluid port 4 and the second hydraulic fluid port 5 are oppositely arranged on valve body 1, the axis of the axis of the first hydraulic fluid port 4 and the second hydraulic fluid port 5 perpendicular to spool 2
Line；There are two the third hydraulic fluid port 6 is set, two third hydraulic fluid ports 6 are oppositely arranged on valve body 1；The axis of spool 2 is equipped with whole
In cylindrical, the first oil-through-hole 7 that top is cone shape, bottom end of the bottom end towards valve body 1 of the first oil-through-hole 7；Spool 2
On be additionally provided with shape second oil-through-hole 8 identical with the first oil-through-hole 7, the axis of the second oil-through-hole 8 is perpendicular to the first oil-through-hole 7
Axis；The side of the maximum cylindrical body of spool 2 is equipped with one and passes in and out oily dashpot 9, and the oily dashpot 9 and second of the disengaging is logical
The bottom end of oilhole 8 is connected；First oil-through-hole 7 is connected with the second oil-through-hole 8.The rodless cavity phase of third hydraulic fluid port 6 and oil cylinder 33
Even, the second hydraulic fluid port 5, oil cylinder 33 rod chamber be connected with fuel tank 32, further include being connected with the rod chamber of the first hydraulic fluid port 4 and oil cylinder 33
Oil-servicing facilities.The oil-servicing facilities is the rod chamber phase of an oil pump 31 being connected with the first hydraulic fluid port 4 and one with oil cylinder 33
Oil pump 31 even.Cavity 3 runs through valve body 1 on 2 axis direction of spool, in being respectively equipped with by the perforative both ends of cavity 3 for valve body 1
Upper cover 10 and lower cover 11, the outer shape of upper cover 10 and the upper end of cavity 3 match, outer shape and the cavity 3 of lower cover 11
Lower end matches, and the center of upper cover 10 is equipped with the first through hole 12 of the cylindrical body rotation for 2 top of spool, the center of lower cover 11
Equipped with the second through-hole 13 being connected with the bottom end of the first oil-through-hole 7, there are two the third hydraulic fluid port 6 is set, second through-hole
The vertical hole 13-1 in 13 " T " shape holes, "T"-shaped hole is connected with the bottom end of the first oil-through-hole 7, two transverse holes in "T"-shaped hole
13-2 is connected with two third hydraulic fluid ports 6 respectively, and each third hydraulic fluid port 6 passes through a rotary valve interface 14 and external oil circuit phase
Even；3 lower end of cavity is equipped with the rotary valve baffle ring 15 for being used to support lower cover 11 of annular, connects by the way that bolt 16 and lower cover 11 are fixed
It connects；The cabinet 17 for closed valve 1 is additionally provided with above the upper cover 10, cabinet 17 is in the hollow stepped cylindrical bodily form, is led to
Several bolts 16 are crossed to be fixedly connected on valve body 1 and upper cover 10.The center of the nose-circle cylinder of spool 2 is equipped with and is used for and cycloid
The driving hole 19 that the transmission shaft of pin gear speed reducer 26 is fixedly connected.Valve body 1 is cuboid；Lead on the nose-circle cylinder of spool 2
The sender set 20 that flat key is fixedly connected with circular ring shape is crossed, is set on sender set 20 there are four magnetic patch, the lower surface of the cabinet 17 is equipped with
Five close switches.There are four magnetic patch is set, for the first magnetic patch 21, the second magnetic patch 23,24 and of third magnetic patch being located on the same circle
4th magnetic patch 25, the first magnetic patch face pass in and out the middle part of oily dashpot, and the second magnetic patch is located at the first magnetic patch and rotates clockwise 50 °
On position, third magnetic patch is located at the first magnetic patch and is rotated on 10 ° of position counterclockwise, and the 4th magnetic patch is located at straight where the second magnetic patch
On diameter.There are five close switch is set, respectively count close to the close switch 27, second of switch 22, first close switch 28, third
Close to switch 29 and the 4th close to switch 30, first close to the middle part of 27 face of switch disengaging oil dashpot 9, and first close switchs
27, second is distributed close to switch 30 in counterclockwise circular close to switch 28, third close to switch 29 and the 4th；Pass in and out oily dashpot
The center of two-end-point on 9 horizontal cross-section in the middle and spool 2 is in 120 ° of central angle, as shown in fig. 6, spool its most
Diameter at big cylindrical body is 600mm, and the depth for passing in and out oily dashpot is 150mm, passes in and out oily dashpot 9 so in the middle
Horizontal cross-section on two-end-point and the center of spool 2 be just in 120 ° of central angle, the diameter of the first oil-through-hole is 230mm,
First hydraulic fluid port is ladder circular hole, and outer circle aperture is 290mm, and interior Circular Aperture is 230mm；Valve body is cuboid, bottom surface 750mm
The rectangle of × 920mm, the minimum distance of the cavity of the first hydraulic fluid port, the second hydraulic fluid port apart from valve body are 150mm；Such size setting
It can satisfy as shown in figure 25（In positional relationship, the oily dashpot of the disengaging of the spool in Figure 25 faces the first oil on valve body
Mouthful, and 270 ° of position faces the second hydraulic fluid port at this time in Figure 25）, when Spool rotating is to 345 ° -135 °（That is the spool of Figure 25
When 345 ° -135 ° of part faces the first hydraulic fluid port）Range when, hydraulic oil enters third hydraulic fluid port from the first hydraulic fluid port, with valve body
Connected oil cylinder 33 pushes（As shown in figure 26, the side of the rod chamber of oil cylinder 33 connects oil pump 31 always, and the other side connects fuel tank
32, the rodless cavity of the third hydraulic fluid port connection oil cylinder 33 of valve body, the first hydraulic fluid port 4 of valve body connects an oil pump 31 always, valve body
Second hydraulic fluid port 5 connects fuel tank 32, therefore when the oily dashpot of disengaging faces the first hydraulic fluid port on valve body, hydraulic oil is oily from first
Mouth enters the oil cylinder 33 that third hydraulic fluid port is connected with valve body and pushes, and institute's displacement sensors are stay-supported type displacement sensor 34, bracing wire
Formula displacement sensor 34 is fixedly connected on oil cylinder 33, and bracing wire is connected on the bared end of the piston rod of oil cylinder 33）.Work as spool
Rotation is to 135 ° -165 °（That is when 135 ° -165 ° of part of the spool of Figure 25 faces the first hydraulic fluid port）Range when（I.e. as schemed
The position of spool in 30）, pass in and out oily dashpot neither the second hydraulic fluid port of the first hydraulic fluid port of face nor face, hydraulic oil not into not going out,
Oil cylinder 33（That is the oil cylinder of forging press）Piston rod it is slack；When Spool rotating is to 165 ° -315 °（That is the spool of Figure 25
When 165 ° -315 ° of part faces the first hydraulic fluid port）When（I.e. such as the position of spool in Figure 29）, hydraulic oil from third hydraulic fluid port enter
Second hydraulic fluid port（The oil pump by valve body does not input oil at this time, because hydraulic fluid port is blocked, and the oil pump of the rod chamber of oil cylinder input oil）, oil
The piston rod uplink of cylinder 33, completes the movement of backhaul.When Spool rotating is to 315 ° -345 °, hydraulic oil is not into going out, piston rod
It is slack.
Second is identical close to switch 28 and the 4th close to switch 30, any one and the second magnetic patch 23 or the 4th magnetic patch 25
When to corresponding to；First is corresponding with the first magnetic patch 21 close to switch 27；Third is corresponding with third magnetic patch 24 close to switch 29；First
It is different close to switch 29 from third close to switch 27, second close to switch 28.Such as Figure 27（Figure 27-a is spool in initial position
Schematic diagram；Figure 27-b is schematic diagram of the sender set in initial position；Figure 27-c is that the position close to switch on cabinet is illustrated
Figure）Shown, when initial position, the first magnetic patch is corresponding close to switch with first（It is corresponded on valve body at 270 ° of positions of spool at this time
The second hydraulic fluid port）, first is powered close to switch（Second close switch, the close switch of third, the 4th close equal power loss of switch）, hair
Messenger's servo motor（Servo motor drives Spool rotating by speed reducer）Stop and brake, hydraulic oil enters the from the first hydraulic fluid port
The piston rod of three hydraulic fluid ports, the oil cylinder 33 of forging press pushes always；When spool and sender disc spins to the position as shown in Figure 28 or Figure 30
When setting, second is powered close to switch 28 and the 4th close to switch 30, the first close switch 27 and close 29 power loss of switch of third, hair
Messenger's servo motor stops and brakes, and hydraulic oil is not into going out.When spool and sender disc spins to position as shown in figure 29, the
Three are powered close to switch, and first close to switch, second close to switch and the 4th close to switch power loss, and sender stops servo motor
And brake, hydraulic oil enters the second hydraulic fluid port, the piston rod of the oil cylinder of forging press uplink always from third hydraulic fluid port.When first close to opening
When pass, second switch equal no power close to switch and the 4th are close close to switch, third, servo motor operating can be achieved with forging fastly
Continuous compacting.It counts close to 22 normal open of switch electricity.
If, will be more energy efficient using variable pump, a variable pump be only needed（Two oil pumps 31 are needed unlike Figure 26）, this
The valve and oil cylinder of invention only need this three components can be realized and quickly forge.Can faster with variable pump speed, structure is simpler
It is single, while being to consider not needing sometimes quickly with variable pump, so that the scope of application of the invention is wider.
Embodiment two：
It is with the difference of embodiment one：As shown in Figure 19 to Figure 23, cavity 3 runs through valve body on 2 axis direction of spool
1, upper cover 10 is respectively equipped at the cavity both ends of valve body 1 and is used to support the rotary valve bearing block 18 of spool 2, the outside of upper cover 10
Shape and the upper end of cavity 3 match, and the outer shape of rotary valve bearing block 18 and the lower end of cavity 3 match, upper cover 10
Center is equipped with the first through hole 12 of the cylindrical body rotation for 2 top of spool, and the center of rotary valve bearing block 18 is equipped with and first
The second through-hole 13 that the bottom end of oil-through-hole 7 is connected, the third hydraulic fluid port 6 are equipped with one, third hydraulic fluid port 6 and the first oil-through-hole 7
It is connected；3 lower end of cavity is equipped with the rotary valve baffle ring 15 for being used to support rotary valve bearing block 18 of annular, passes through bolt 16 and rotation
Rotary valve bearing block 18 is fixedly connected；The cabinet 17 for closed valve 1 is additionally provided with above the upper cover 10, cabinet 17 is in hollow
The stepped cylindrical bodily form, be fixedly connected on valve body 1 by several bolts 16.When third hydraulic fluid port 6 is equipped with one, third hydraulic fluid port
6 be arranged in valve body 1 by the perforative one end of cavity 3 or opposite end, position is located on the axis of spool 2；Valve body 1 is cuboid
Shape.Magnetic patch be equipped with one, close to switch set there are five.According to different forms, structure as of fig. 24 also can be set into
（It is not required to rotary valve bearing block 18, and valve body lower portion is arranged to the shape of spool can be made）.Figure 31 to 34 is respectively
In the present embodiment magnetic patch turn to first close to switch immediately below, second close to switch immediately below, third close to switch immediately below
Status diagram when with the 4th close to immediately below switch.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. hydraulic rapid forging press, which is characterized in that the displacement sensor including the oil cylinder and fixed setting that are connect with hydraulic reversing valve, institute
Stating distance of the piston rod of oil cylinder apart from oil cylinder inner wall is 2mm-50mm；The hydraulic reversing valve includes the valve of the stepped cylindrical bodily form
Core inside sets the valve body of the cavity for Spool rotating, and cavity is cylindrical, and it runs through valve body, valve along valve core axis direction
Body is equipped with the end cap for closed valve；Valve body is equipped with oil inlet and oil outlet, further includes being arranged on end cap or valve body
Oil cylinder interface；The first oil-through-hole and the second oil-through-hole being connected, the side of the maximum cylindrical body of spool are additionally provided on spool
It is equipped with one and passes in and out oily dashpot, the oily dashpot of the disengaging is connected with the second oil-through-hole, oil cylinder interface and the first oil-through-hole
It is connected；The rodless cavity side of third hydraulic fluid port and oil cylinder connection, the second hydraulic fluid port, oil cylinder rod chamber be connected with fuel tank, further include
The oil-servicing facilities being connected with the rod chamber of the first hydraulic fluid port and oil cylinder.
2. hydraulic rapid forging press according to claim 1, which is characterized in that the piston rod of the oil cylinder is apart from oil cylinder inner wall
Distance is 5mm；The oil-servicing facilities is variable pump；Or the oil-servicing facilities is an oil pump being connected with the first hydraulic fluid port and one
The accumulator being connected with the rod chamber of oil cylinder；Institute's displacement sensors are stay-supported type displacement sensor, stay-supported type displacement sensor
It is fixedly connected on oil cylinder, bracing wire is connected on the bared end of the piston rod of oil cylinder.
3. hydraulic rapid forging press according to claim 1, which is characterized in that first oil-through-hole is formed with the second oil-through-hole
L shape；The oil cylinder interface is straight hole；Or oil cylinder interface is L shape hole or T-shaped hole, or for by several radial transverse holes and
The oil-through-hole that one vertical hole is constituted, transverse holes are connect with oil cylinder.
4. hydraulic rapid forging press according to claim 3, which is characterized in that the cavity extends upward through valve in valve core axis side
Body is respectively equipped with upper cover and lower cover at the cavity both ends of valve body, and the outer shape of upper cover and the upper end of cavity match, lower cover
The lower end of outer shape and cavity matches, and the center of upper cover is equipped with the first through hole for the cylindrical body rotation at the top of spool,
The center of lower cover is equipped with the oil cylinder interface being connected with the bottom end of the first oil-through-hole, and the " T " shape hole of oil cylinder interface is "T"-shaped
The vertical hole in hole is connected with the bottom end of the first oil-through-hole, and two transverse holes in "T"-shaped hole are connected with two oil cylinders respectively, each
Transverse holes are connected by a rotary valve interface with external oil circuit；Valve interior wall is equipped with the rotary valve for being used to support lower cover of annular
Baffle ring is fixedly connected by bolt with lower cover；The cabinet for closed valve is additionally provided with above the upper cover, cabinet is shelly-shaped
Structure is fixedly connected on valve body and/or upper lid by several bolts.
5. hydraulic rapid forging press according to claim 3, which is characterized in that the cavity extends upward through valve in valve core axis side
Body is respectively equipped with upper cover at the cavity both ends of valve body and is used to support the rotary valve bearing block of spool, the outer shape of upper cover with
The upper end of cavity matches, and the outer shape of rotary valve bearing block and the lower end of cavity match, and the center of upper cover, which is equipped with, to be used for
The first through hole of cylindrical body rotation at the top of spool, the center of rotary valve bearing block is equipped with to be connected with the bottom end of the first oil-through-hole
The second through-hole, the oil cylinder interface be equipped with one, oil cylinder interface is connected with the first oil-through-hole；Cavity lower end is equipped with annular
It is used to support the rotary valve baffle ring of rotary valve bearing block, is fixedly connected by bolt with rotary valve bearing block；Above the upper cover
It is additionally provided with the cabinet for closed valve, cabinet is shell-like structure, is fixedly connected on valve body by several bolts.
6. hydraulic rapid forging press according to claim 5, which is characterized in that the valve body is cuboid or cylindrical；
The center of the nose-circle cylinder of spool is equipped with for the driving hole with motor axis connection；Pass through on the nose-circle cylinder of the spool
Flat key is fixedly connected with the sender set of annular, and sender set is equipped with one or four magnetic patch, set on the cabinet there are four or five
Close to switch.
7. hydraulic rapid forging press according to claim 6, which is characterized in that the close switch is respectively counted there are five setting
Number close to switch, first close to switch, second close to switch, third close to switch and the 4th close to switch, first close to switch
Face passes in and out the middle part of oily dashpot, and first is in close to switch with the 4th close to switch, third close to switch close to switch, second
Counterclockwise circular distribution；The center institute of the two sides and spool that pass in and out oily dashpot is 110 ° -130 ° at central angle.
8. hydraulic rapid forging press according to claim 7, which is characterized in that there are four the magnetic patch is set, for positioned at same circle
On the first magnetic patch, the second magnetic patch, third magnetic patch and the 4th magnetic patch, the first magnetic patch face passes in and out the middle part of oily dashpot, second
Magnetic patch is located at the first magnetic patch and rotates clockwise on 45 ° to 60 ° of position, and third magnetic patch is located at the first magnetic patch and rotates 0 ° counterclockwise extremely
On 60 ° of position, the 4th magnetic patch is corresponding with the second magnetic patch.
9. hydraulic rapid forging press according to claim 7, which is characterized in that the magnetic patch be equipped with one, position face into
The middle part of fuel-displaced dashpot.
10. hydraulic rapid forging press according to claim 8, which is characterized in that described second opens close to switch and the 4th are close
Close it is identical, any one and the second magnetic patch or the 4th magnetic patch to it is corresponding when；First is corresponding with the first magnetic patch close to switching；The
Three is corresponding with third magnetic patch close to switching；The first transmitting signal close to switch, the second close switch and third close to switch is not
Together.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389510.6A CN107008840B (en) | 2017-05-27 | 2017-05-27 | Hydraulic rapid forging press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389510.6A CN107008840B (en) | 2017-05-27 | 2017-05-27 | Hydraulic rapid forging press |
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| CN107008840B true CN107008840B (en) | 2018-11-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU681770B2 (en) * | 1994-05-18 | 1997-09-04 | Stanley-Bostitch, Inc. | Adjustable energy control valve for a fastener driving device |
| DE102012012297A1 (en) * | 2012-03-30 | 2013-10-02 | Atlas Copco Construction Tools Gmbh | Valve |
| CN105402185A (en) * | 2015-12-08 | 2016-03-16 | 中国重型机械研究院股份公司 | Double-acting prefill valve |
| CN105402188B (en) * | 2015-12-28 | 2017-08-29 | 西安科技大学 | A kind of controllable high-speed rotation shunt reversing valve of servo |
| CN106623719B (en) * | 2017-02-24 | 2019-04-26 | 王安基 | Forging mechanism and forging machine |
| CN206925261U (en) * | 2017-05-27 | 2018-01-26 | 江苏德生新材料锻造有限公司 | Hydraulic rapid forging press |
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