A kind of lower forging of forging machinery forcing press machinery is squeezed and Lifting Device
Technical field:
The present invention relates to forging machine tool technical fields, and in particular to a kind of lower forging of forging machinery forcing press machinery is squeezed and liftout
Device.
Background technology:
Bottom ejection device is one of mechanical press critical piece.At present, forging press bottom ejection device is big in the market
In addition mostly cam-type also has a small number of pneumatic types.Above two bottom ejection device be mainly used for forging machinery forcing press forging and
The ejection of part after forging has the characteristics that high protect ejects, convenient for holding parts and automated production, and These characteristics become forging
The major function requirement of mechanical press.
But nowadays, manufacturing industry is grown rapidly, Market competition, and manufacturing enterprise proposes purchased equipment higher will
Ask ----meet crowded forging, stretching and ejection complicated procedures of forming, reduce energy consumption, improve mechanical efficiency, green production.It is existing both
All there are certain defects for bottom ejection device, it is impossible to meet the needs of manufacturing enterprise well.As shown in Figs. 1-2, pushed up under cam-type
Material device is by the rotary force of bent axle, and torque is converted into the swing of swing rod to drive pull rod up and down motion by cam mechanism
Power, then the power that pull rod moves up and down is converted by the torque that axis swings by connecting rod, it is swung finally by bottom knockout axis by torque
The upward liftout power of ejector beam is then converted to, the ejection of forging parts is realized in (eccentric wheel hysteresis drift angle) asynchronous with sliding block action,
After the completion of the action of mechanical liftout, assistant cylinder starts to start, and cylinder piston rod is connected on connecting rod, passes through connecting rod, bottom knockout
Axis, using the action identical with mechanical liftout, continues upwards to eject ejector beam, and forging is ejected and in lower mode cavity in highest
Position is kept for a period of time and (is convenient for clamping forge piece), so far, completes entire liftout process.Said mechanism is to the conversion number mistake of power
More (up to 3 times), energy loss is big, and structure is more complicated, manufacture is of high cost;And cam-type machinery bottom ejection device also has the liftout complete
Cheng Hou, impact is big during reset, cam, resetting spring quick abrasion, upper pendulum bar is easy to wear, fracture, with cam is stuck, maintenance cost
The problems such as high, adds production cost, reduces production efficiency, does not meet current manufacturing enterprise and green energy conservation production is wanted
It asks.Most importantly forging (multistation) mechanical press needs the lower forging more than nominal pressure more than 30% to squeeze or extension force requirements
When carrying out bottom knockout again afterwards, cam-type machinery bottom ejection device can not just be realized;And cam-type machinery bottom ejection device can not
The ejecting force of mechanical liftout is adjusted, overload is be easy to cause, lathe and forging is damaged.
As shown in figure 3, pneumatic type bottom ejection device is that cylinder is suspended on pedestal in the following, piston rod and the direct phase of ejector beam
Even, by the movement of cylinder, direct liftout, the mechanism structure is simple, reliable operation, but ejecting force is smaller, is only used for part punching
Part is ejected out of mold after pressure, it is impossible to meet forging and squeeze job requirement.At present only to of less demanding a small amount of small of liftout power
It is used on type mechanical press.
The content of the invention:
The purpose of the present invention is exactly in order to make up for the deficiencies of the prior art, to provide under a kind of forging machinery forcing press machinery
Forging is squeezed and Lifting Device, and there is synchronous forging to squeeze or stretch for it or the function of asynchronous ejection, purposes variation, lower forging is squeezed or top
Power size is adjustable, prevents overload, service life length, high quality, solves problems of the prior art.
The used to solve above-mentioned technical problem technical solution of the present invention is:
A kind of lower forging of forging machinery forcing press machinery is squeezed and Lifting Device, including the bent axle being arranged on fuselage, bent axle one
End is equipped with eccentric bushing through fuselage, connecting rod is equipped on eccentric bushing, connecting rod lower end is hinged with upper connecting rod, and upper connecting rod lower end passes through
Disk spring is connected with lower pull rod, and lower pull rod lower end is hinged with lever one end, and upper connecting rod and lower pull rod are separately mounted on stent,
Stent is connected with fuselage, and lever middle is equipped with elongated hole, is equipped with the 3rd axis pin in elongated hole, the 3rd axis pin is arranged on and fuselage
On the bearing that bottom is connected, the lever other end is equipped with idler wheel, and idler wheel contacts company with the liftout seat bottom being vertically arranged on fuselage
It connects, liftout seat upper end is equipped with top plate, and top plate both sides are respectively equipped with cylinder, and top plate upper end is equipped with several upper ejector pins, upper ejector pin installation
In workbench.
The eccentric bushing is connected by flat key with bent axle.
It is set on the eccentric bushing inner wall there are two the different keyway of eccentric angle, one is synchronous keyway, another is different
Keyway is walked, the outer wall that bent axle corresponds to setting-up eccentricity set passes through flat key and song equipped with crankshaft key slot, synchronous keyway or asynchronous keyway
Shaft key groove connects.
The shaft end that the crankshaft installed has eccentric bushing is equipped with the gland that cross spacing is carried out to eccentric bushing, and gland passes through spiral shell
Bolt is mounted on bent axle shaft end.
The first self-lubricating copper sheathing is equipped between the eccentric bushing and connecting rod.
The connecting rod lower end is articulated and connected by the first axis pin and upper connecting rod.
The upper connecting rod lower end is equipped with upper adjusting nut and upper adjusting sleeve successively from top to bottom, and lower pull rod upper end is from top to bottom
Be equipped with lower adjusting sleeve and lower adjusting nut successively, upper adjusting sleeve connected with lower adjusting sleeve by screw bolt and nut, upper adjusting sleeve and
Outside is equipped with disk spring between lower adjusting sleeve, and limited block is equipped between upper adjusting sleeve and lower adjusting sleeve middle part.
The upper connecting rod and lower pull rod center line overlap.
The first guide copper sleeve is equipped between the stent and upper connecting rod and/or lower pull rod.
The lower pull rod is articulated and connected by rod head and lever.
The 4th self-lubricating copper sheathing is equipped between 3rd axis pin and lever.
The rod head is articulated and connected by the second axis pin and lever, and the 5th is equipped between the second axis pin and lever from profit
Sliding copper sheathing.
Second axis pin and the 3rd axis pin end are equipped with shaft block ring
The idler wheel is connected by the 4th axis pin with lever, and the 6th self-lubricating copper sheathing is equipped between the 4th axis pin and idler wheel,
4th axis pin end is equipped with shaft block ring.
The liftout seat upper end equipped with top plate, top plate or so respectively installation there are one material ejection cylinder, cylinder by piston rod with
Top plate is connected, and top plate upper end is equipped with upper ejector pin.
It is equipped with the 3rd guide copper sleeve and lower guide sleeve between the liftout seat and fuselage successively from inside to outside.
It is equipped with the second guide copper sleeve and upper guide sleeve between the upper ejector pin and workbench successively from inside to outside.
The workbench upper end is equipped with pressing plate.
The present invention using the above program, for existing machinery forcing press bottom ejection device, devises
A kind of lower forging of forging machinery forcing press machinery is squeezed and Lifting Device, by designing bent axle, eccentric bushing, upper connecting rod, lower pull rod, thick stick
Bar, liftout seat, top plate, cylinder and upper ejector pin are realized and by crank rotation eccentric bushing are driven to rotate, and eccentric bushing, which rotates, drives connecting rod
It swings, connecting rod swing drives upper connecting rod and the movement of lower pull rod vertical direction, and then lever left end is driven to be moved in vertical direction, right
End with the left end direction of motion on the contrary, and then liftout seat is driven to be moved in vertical direction, upper ejector pin is driven in vertical side by top plate
To movement, the final effect for realizing that forging is squeezed, liftout ejects;By designing eccentric bushing, eccentric bushing is connected with connecting rod, and realization passes through tune
The eccentric angle (especially by the synchronous keyway of setting and asynchronous keyway) of the eccentric angle of whole eccentric bushing keyway and bent axle is realized
Synchronous forging is squeezed or stretched or the function of asynchronous ejection, purposes variation;By being equipped with dish between upper connecting rod and lower pull rod
Spring, realization control forging is squeezed or the size of liftout power, forges the requirement squeezed or stretched so as to meet heavy duty, and ensures mechanism ejecting force
Be not in overload, extend the service life of forcing press, improve the effect that quality and shaped article craftsmanship are squeezed in forging.
Description of the drawings:
Fig. 1 is the front view of existing machinery pressure cam formula bottom ejection device;
Fig. 2 is the side view of existing machinery pressure cam formula bottom ejection device;
Fig. 3 is the structure diagram of existing machinery press machine pneumatic type bottom ejection device;
Fig. 4 is schematic structural view of the invention;
Fig. 5 is D of the present invention to partial structural diagram;
Fig. 6 is the X portions partial enlarged view in Fig. 4 of the present invention;
Fig. 7 is the Y portions partial enlarged view in Fig. 4 of the present invention;
Fig. 8 is the sectional view along A-A in Fig. 4 of the present invention;
Fig. 9 is the B-B direction sectional view in Fig. 4 of the present invention;
Figure 10 is C-C in Fig. 4 of the present invention to sectional view;
Figure 11 is eccentric bushing of the present invention and crankshaft installed structure diagram;
In figure, 1, bent axle, 2, upper connecting rod, the 3, first guide copper sleeve, 4, stent, 5, lower pull rod, 6, clamp nut, 7, thick stick
Bar, 8, fuselage, 9, pressing plate, 10, upper guide sleeve, the 11, second guide copper sleeve, 12, upper ejector pin, 13, top plate, 14, cylinder, 15, top
Expect seat, 16, lower guide sleeve, the 17, the 3rd guide copper sleeve, 18, connecting rod, the 19, first self-lubricating copper sheathing, 20, eccentric bushing, 21, gland,
22nd, flat key, 23, bolt, the 24, second self-lubricating copper sheathing, the 25, first axis pin, 26, upper adjusting nut, 27, upper adjusting sleeve, 28, dish
Shape spring, 29, lower adjusting sleeve, 30, lower adjusting nut, 31, bearing, the 32, the 3rd axis pin, the 33, the 4th self-lubricating copper sheathing, 34, draw
Knock-off joint, the 35, second axis pin, the 36, the 5th self-lubricating copper sheathing, the 37, the 4th axis pin, the 38, the 6th self-lubricating copper sheathing, 39, idler wheel,
40th, shaft block ring, 41, elongated hole, 42, workbench, 43, limited block, 44, synchronous keyway, 45, asynchronous keyway, 46, crankshaft key
Slot, 47, sliding block.
Specific embodiment:
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in Fig. 4-11, a kind of lower forging of forging machinery forcing press machinery is squeezed and Lifting Device, including being arranged on fuselage 8
Bent axle 1,1 one end of bent axle is equipped with eccentric bushing 20 through fuselage 8, and connecting rod 18,18 lower end of connecting rod hinge are equipped on eccentric bushing 20
Upper connecting rod 2 is connected to, 2 lower end of upper connecting rod is connected by disk spring 28 with lower pull rod 5, and lower 5 lower end of pull rod is cut with scissors with 7 one end of lever
It connecing, upper connecting rod 2 and lower pull rod 5 are separately mounted on stent 4, and stent 4 is connected with fuselage 8, and 7 middle part of lever is equipped with elongated hole 41,
3rd axis pin 32 is installed, the 3rd axis pin 32 is arranged on the bearing 31 being connected with 8 bottom of fuselage, and lever 7 is another in elongated hole 41
One end is equipped with idler wheel 39, and idler wheel 39 and 15 bottom of liftout seat being vertically arranged on fuselage 8 connect, and 15 upper end of liftout seat is set
There is top plate 13,13 both sides of top plate are respectively equipped with cylinder 14, and 13 upper end of top plate is equipped with several upper ejector pins 12, and upper ejector pin 12 is mounted on work
Make in platform 42.By designing bent axle 1, eccentric bushing 20, upper connecting rod 2, lower pull rod 5, lever 7, liftout seat 15, top plate 13, cylinder 14
With upper ejector pin 12, realize that rotating drive eccentric bushing 20 by bent axle 1 rotates, 20 eccentric rotary of eccentric bushing drives the bottom on connecting rod 18
Dynamic, connecting rod 18, which is swung, drives upper connecting rod 2 and the movement of lower 5 vertical direction of pull rod, and then 7 left end of lever is driven to be transported in vertical direction
It is dynamic, right end with the left end direction of motion on the contrary, and then liftout seat 15 is driven to be moved in vertical direction, pass through top plate 13 and drive upper ejector pin
12 move in vertical direction, final to realize the effect for forging crowded liftout ejection;By designing eccentric bushing 20, eccentric bushing 20 and connecting rod
18 connections, eccentric bushing are connected with connecting rod, are realized and are come in fact by adjusting the eccentric angle of eccentric bushing keyway and the eccentric angle of bent axle
Now synchronous forging is squeezed or stretched or the function of asynchronous ejection, purposes variation;By being equipped between upper connecting rod 2 and lower pull rod 5
Disk spring 28 realizes the size for controlling liftout power, so as to meet the requirement that heavy duty forging squeezes or stretches and eject, and ensures mechanism
Ejecting force is not in overload, extends the service life of forcing press, improves the effect that quality and shaped article craftsmanship are squeezed in forging.
Eccentric bushing 20 is connected by flat key 22 with bent axle 1, and flat key 22 is quickly and expediently installed, structural strength is high.
It is set on 20 inner wall of eccentric bushing there are two the different keyway of eccentric angle, one is synchronous keyway 44, another is different
Keyway 45 is walked, the outer wall that bent axle 1 corresponds to setting-up eccentricity set 20 is equipped with crankshaft key slot 46, and synchronous keyway 44 or asynchronous keyway 45 are logical
It crosses flat key 22 to be connected with crankshaft key slot 46, by setting synchronous keyway 44 and asynchronous keyway 45, when synchronous keyway 44 and crankshaft key
During the cooperation installation of slot 46, the bias and bent axle 1 of eccentric bushing 20 are eccentric in the same direction, and the bottom ejection device of the application can realize that forging is squeezed or drawn
It stretches, the relative motion of ejector beam ejection, completes upper/lower die synchronization forging parts;When asynchronous keyway 45 coordinates with crankshaft key slot 46
During installation, bias and the eccentric hysteresis certain angle of bent axle 1, the function of the realization asynchronous ejection of forging of eccentric bushing 20.
The shaft end that bent axle 1 is equipped with eccentric bushing 20 is equipped with the gland 21 that cross spacing is carried out to eccentric bushing 20, gland 21
It is mounted on by bolt on 1 shaft end of bent axle, cross spacing is carried out to eccentric bushing 20, prevents eccentric bushing 20 from departing from bent axle 1.
The first self-lubricating copper sheathing 19 is equipped between eccentric bushing 20 and connecting rod 18, lubricating action is played, prolongs the service life.
18 lower end of connecting rod is articulated and connected by the first axis pin 25 with upper connecting rod 2.
2 lower end of upper connecting rod is equipped with upper adjusting nut 26 and upper adjusting sleeve 27 successively from top to bottom, lower 5 upper end of pull rod from upper and
Under be equipped with lower adjusting sleeve 29 and lower adjusting nut 30 successively, upper adjusting sleeve 27 connected with lower adjusting sleeve 29 by screw bolt and nut,
Outside is equipped with disk spring 28 between upper adjusting sleeve 27 and lower adjusting sleeve 28, and upper adjusting sleeve 27 and lower adjusting sleeve are set between 28 middle part
There is limited block 43, by being equipped with disk spring 28 between upper connecting rod 2 and lower pull rod 5, the characteristics of making full use of disk spring 28,
By adjusting the decrement of disk spring 28, the size of liftout power is controlled, forges what is squeezed or stretch and eject under heavy duty so as to meet
It is required that and ensure the problem of mechanism ejecting force is not in overload, extend the service life of forcing press and mold.
Upper connecting rod 2 and lower 5 center line of pull rod overlap, it is ensured that upper connecting rod 2 and lower pull rod 5 are moved in vertical direction.
The first guide copper sleeve 3 is equipped between stent 4 and upper connecting rod 2 and/or lower pull rod 5.
Lower pull rod 5 is articulated and connected by rod head 34 and lever 7, and fastening is equipped between rod head 34 and lower pull rod 5
Nut 6.
The 4th self-lubricating copper sheathing 33 is equipped between 3rd axis pin 32 and lever 7.
Rod head 34 is articulated and connected by the second axis pin 35 with lever 7, and the 5th is equipped between the second axis pin 35 and lever 7
Self-lubricating copper sheathing 36.
Second axis pin 35 and 32 end of the 3rd axis pin are respectively equipped with shaft block ring 40.
Idler wheel 39 is connected by the 4th axis pin 37 with lever 7, and the 6th self-lubricating is equipped between the 4th axis pin 37 and idler wheel 39
Copper sheathing 38,37 end of the 4th axis pin are equipped with shaft block ring 40.
15 upper end of liftout seat is equipped with top plate 13, and top plate 13 or so is respectively installed there are one cylinder 14, and cylinder 14 to pass through piston rod
It is connected with top plate 13,13 upper end of top plate is equipped with upper ejector pin 12.
It is equipped with the 3rd guide copper sleeve 17 and lower guide sleeve 16 between liftout seat 15 and fuselage 8 successively from inside to outside.
It is equipped with the second guide copper sleeve 11 and upper guide sleeve 10 between upper ejector pin 12 and workbench 42 successively from inside to outside.
42 upper end of workbench is equipped with pressing plate 9.
The course of work of the present invention:
(1) course of work is squeezed and ejected in synchronous forging
Eccentric bushing 20 is mounted on by synchronous keyway 44 on bent axle 1, the bias and bent axle 1 of eccentric bushing 20 are eccentric in the same direction,
When bent axle 1, which rotates band movable slider 47, to be moved downward, bent axle 1 drives connecting rod 18 to move also by eccentric bushing 20, and connecting rod 18 drives
Upper connecting rod 2 and lower pull rod 5 move downward, and lower pull rod 5 promotes lever 7 to move, and lever 7 jacks up liftout seat 15, and liftout seat 15 is again
Top plate 13 and upper ejector pin 12 are jacked up, sliding block 47 acts on forging simultaneously with upper ejector pin 12, when pull rod power is more than disk spring 28
After pretightning force, disk spring 28 starts to be compressed, and the pressure and stroke squeezed or stretched until reaching forging realize what forging was squeezed or stretched
Process;After the completion of forging is squeezed or is stretched, the rotation of bent axle 1 band movable slider 47 and 18 upward return of connecting rod move, due on sliding block 47
Shifting, 28 compressive of disk spring, stroke quick release promote 7 left end of lever to continue to move downward, and 7 right end of lever continues up
Movement, and then the height that liftout seat 15, upper ejector pin 12 is driven to set the forging forged after squeezing or stretching from mould ejection, this
When cylinder 14 startup overcome the power that top plate 13 moves downward, piston rod ejects upwards, continues up top plate 13 and upper ejector pin 12
Ejection by the forging top ejected in lower mold cavity to the position of requirement, and is kept for a period of time, facilitates clamping forge piece, passes through this
The bottom ejection device of application, which realizes, forges crowded or stretching, the relative motion of upper ejector pin ejection, and completion can upper/lower die synchronously forging
Part.
(2) asynchronous ejection process
Eccentric bushing 20 is installed by asynchronous keyway 45 with bent axle 1, eccentric angle and the eccentric hysteresis of bent axle 1 of eccentric bushing 20
Certain angle, when 47 upward return of sliding block moves, bent axle 1 drives upper connecting rod 2 and lower pull rod 5 by eccentric bushing 20 and connecting rod 18
Continue to move downward, lower pull rod 5 promotes 7 left end of lever to continue to move downward, and 7 right end of lever continues up, and then will top
Material seat 15 jacks up, and liftout seat 15 again jacks up top plate 13 and upper ejector pin 12, and the forging of completion is ejected from lower mold intracavitary, realizes
Bottom knockout process;After the completion of mechanical liftout, bent axle 1 drives upper connecting rod 2 and lower pull rod 5 to start to move upwards, while cylinder 14
Startup overcomes the power that top plate 13 moves downward, and piston rod ejects upwards, and top plate 13 and upper ejector pin 12 is made to continue up ejection, will be forged
Part ejects extreme higher position out of mold cavity and is kept for a period of time, convenient for clamping forge piece, realizes the function of the asynchronous ejection of forging,
In whole work process, the size of ejecting force can be adjusted by adjusting the decrement of disk spring 28, ensure that ejecting force will not
It overloads.The bottom ejection device of the application can realize crowded synchronous forging or stretching and ejection or asynchronous ejection according to work requirements
Two kinds of working methods make bottom ejection device purposes diversified;By adjusting 28 decrement of disk spring, ejecting force is adjusted, is met
The requirement that heavy duty forging is squeezed or stretched, and ensure that ejecting force will not overload;Extend forcing press service life, improve forging squeeze quality and into
Type Product Process effect.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or conversion made to embodiment of the present invention are all fallen in protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.