CN206868896U - A kind of blanking buffer unit of hydraulic press - Google Patents
A kind of blanking buffer unit of hydraulic press Download PDFInfo
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- CN206868896U CN206868896U CN201720737192.3U CN201720737192U CN206868896U CN 206868896 U CN206868896 U CN 206868896U CN 201720737192 U CN201720737192 U CN 201720737192U CN 206868896 U CN206868896 U CN 206868896U
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- piston
- cylinder body
- hydraulic press
- buffering
- pull rod
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Abstract
The utility model provides a kind of blanking buffer unit of hydraulic press, it is related to hydraulic press equipment technical field, including the first buffering cylinder body, first buffering cylinder body is fixedly connected on the upper beam of hydraulic press, plunger is provided with first cushion dashpot body, buffer pull rod runs through the center of plunger, the lower end of buffer pull rod is fixedly connected with the sliding block of hydraulic press, the upper end of buffer pull rod is fixedly connected with buffering nut, a cavity is provided with plunger, the second buffering cylinder body is provided with cavity, buffer pull rod is through the second buffering cylinder body, a piston is additionally provided with second cushion dashpot body, piston upper end buffers through second and is arranged at the top of cylinder body outside plunger, piston is slideably positioned on the inwall of the second buffering cylinder body.The utility model good buffer effect, simple and compact for structure, service life length.
Description
Technical field
It the utility model is related to hydraulic press equipment technical field, and in particular to a kind of blanking buffer unit of hydraulic press.
Background technology
At present, on a hydraulic press in buffer gear mode, fixed mostly using cushion cylinder stroke, buffer position passes through tune
Section is arranged on the mode of the buffer pull rod upper end buffering nut on sliding block, and the regulation of buffer pull rod upper end buffering nut passes through deceleration
Machine drives the paired bevel gear of each shaft coupling connection to drive buffering nut along buffer pull rod axial-rotation, slow so as to reach regulation
Rush the purpose of position.Such a mode huge structure, complexity, difficulty of processing are big, and precision is low, flexibility, poor reliability, buffering effect
Difference.
Utility model content
In order to solve the above technical problems, a kind of blanking buffer unit of hydraulic press of the utility model offer, good buffer effect,
It is simple and compact for structure, service life length.
The utility model adopts the following technical scheme that：
A kind of blanking buffer unit of hydraulic press, including the first buffering cylinder body, the first buffering cylinder body are fixedly connected on
On the upper beam of hydraulic press, plunger is provided with the first cushion dashpot body, the buffer pull rod runs through the center of the plunger, described
The lower end of buffer pull rod is fixedly connected with the sliding block of hydraulic press, and the upper end of the buffer pull rod is fixedly connected with buffering nut, institute
State and a cavity is provided with plunger, the second buffering cylinder body is provided with the cavity, the buffer pull rod runs through second cushion dashpot
Body, a piston is additionally provided with the second cushion dashpot body, and the piston upper end is set through the top of the described second buffering cylinder body
In outside the plunger, the piston is slideably positioned on the inwall of the second buffering cylinder body.
When punching is completed, piston depresses row soon by buffering nut, and piston first overcomes closed gas in the second cushion dashpot body
Resistance exercise, a part of stress is buffered, make buffering effect more preferable；The position of regulating piston is the mesh that can reach regulation buffer position
's.
Preferably, damping fluid is full of in the second cushion dashpot body, the piston is provided with damping fluid runner, the damping
Liquid stream road include be respectively arranged at piston axial direction both sides entrance and exit and with the entrance and the outlet
Runner.
When punching is completed, piston depresses row soon by buffering nut, and the resistance of piston overpowers damping fluid comes downwards to buffering nut
It is pressed on plunger, final sliding block release pressure is absorbed by the first buffering cylinder body, completes cushioning effect, passes through piston and damping fluid
Cooperation first buffer a part of stress, make whole buffering system buffers effect more preferable.
Preferably, the runner is the through hole that is axially penetrated through along the piston, passes through the number of openings of design and through hole
Aperture, the size of damping force can be determined, to reach more preferable buffering effect.
Preferably, the runner is screw-shaped flow paths, increases the movement difficulty of damping fluid, increases damping force.
Preferably, outer wall circumference spiral of the screw-shaped flow paths along the piston is set, and the motion for increasing damping fluid is difficult
Degree, increase damping force.
Preferably, spring is additionally provided with the second cushion dashpot body, the spring is fixedly installed on second cushion dashpot
The bottom of body, gap is provided between the spring and the piston.
After at piston movement to spring, then overcome the elastic force of spring to move, buffer a part of stress again, increase secondary slow
Punching, to reach more preferable buffering effect.
Preferably, the buffer pull rod runs through the center of the piston, and the spring housing is located on the buffer pull rod,
It is distributed buffering uniform force.
Preferably, the spring upper limb is less than the length of the piston apart from the distance of the plunger upper limb, makes buffering spiral shell
Mother can be with piston holddown spring.
Preferably, bellows, one end of the bellows and the described second buffering are additionally provided with the second cushion dashpot body
The sealed bottom connection of cylinder body, the other end of the bellows are connected with the piston seal, and the spring is arranged at the ripple
In line pipe, the damping fluid is full of between the inwall of the bellows and the second buffering cylinder body, bellows can be protected interior
The corrosion of the spring in portion liquid not dampened, increases service life of the present utility model.
The beneficial effects of the utility model：
(1) when punching is completed, piston depresses row soon by buffering nut, and the resistance of piston overpowers damping fluid is descending, buffering one
Part stress, make buffering effect more preferable；
(2) when punching is completed, overcome the elastic force of spring descending again after the descending contact spring of piston overpowers damping fluid, delay again
A part of stress is rushed, adds secondary buffer, to reach more preferable buffering effect；
(3) position of the utility model regulating piston is the purpose that can reach regulation buffer position.
Brief description of the drawings
Accompanying drawing is used for providing to preferable understanding of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the schematic cross-sectional view of piston in embodiment 1；
Fig. 3 is the structural representation of piston in embodiment 2；
Fig. 4 is the structural representation of embodiment 3.
In figure mark for：1st, the first buffering cylinder body；2nd, upper beam；3rd, plunger；4th, buffer pull rod；5th, sliding block；6th, buffering nut；
8th, the second buffering cylinder body；9th, piston；10th, damping fluid；11st, damping fluid runner；11a, runner；12nd, spring；13rd, bellows.
Embodiment
Specific embodiment of the present utility model is described below in conjunction with the accompanying drawings.
Embodiment 1
As depicted in figs. 1 and 2, for the present embodiment a kind of hydraulic press blanking buffer unit, including first buffering cylinder body 1
With buffer pull rod 4, the first buffering cylinder body 1 is fixedly connected on the upper beam 2 of hydraulic press, and plunger 3 is provided with the first buffering cylinder body 1,
Buffer pull rod 4 runs through the center of plunger 3, and the lower end of buffer pull rod 4 is fixedly connected with the sliding block 5 of hydraulic press, buffer pull rod 4 it is upper
End is fixedly connected with buffering nut 6, and a cavity is provided with plunger 3, and the second buffering cylinder body 8 is provided with cavity, and buffer pull rod 4 runs through
Second buffers cylinder body 8, and a piston 9 is additionally provided with the second buffering cylinder body 8, and the upper end of piston 9 is set through the top of the second buffering cylinder body 8
It is placed in outside plunger 3, piston 9 is slideably positioned on the inwall of the second buffering cylinder body 8.
Damping fluid 10 is full of in second buffering cylinder body 8, piston 9 is provided with damping fluid runner 11, and damping fluid runner 11 includes
The runner 11a for being respectively arranged at the entrance and exit of 9 axial both sides of piston and being connected with entrance and exit, runner 11a are edge
The through hole that piston 9 axially penetrates through.
The working method of the present embodiment：When hydraulic press carries out punching work, the first buffering cylinder body 1 is ejected to cushioning effect
Point position, its stroke eases up including cushion stroke reconstitutes stroke needed for section.Sliding block 5 drives the fast downlink of buffer pull rod 4 to close
Turn descending at a slow speed when being punched position to be punched.The upper end buffering nut 6 of buffer pull rod 4 pushes down piston 9 before punching is completed；It has been punched
Cheng Shi, by buffering nut 6, pressure row, piston 9 overcome the resistance of damping fluid 10 to come downwards to buffering nut 6 to be pressed in post piston 9 soon
On plug 3, final sliding block 5 discharges pressure and absorbed by the first buffering cylinder body 1, completes cushioning effect.
Embodiment 2
As shown in figure 3, the runner 11a of the present embodiment 2 is screw-shaped flow paths, outer wall of the screw-shaped flow paths along piston 9 is circumferential
Spiral is set.
With reference to the working method of embodiment 1, the present embodiment 2 changes runner 11a shape, increase damping compared with embodiment 1
The movement difficulty of liquid 10, increase damping force, to reach more preferable buffering effect.
Embodiment 3
As shown in figure 4, being additionally provided with spring 12 in the second buffering cylinder body 8 of the present embodiment 3, spring 12 is fixedly installed on second
The bottom of cylinder body 8 is buffered, gap is provided between spring 12 and piston 9.
Buffer pull rod 4 runs through the center of piston 9, and spring 12 is sheathed on buffer pull rod 4.
The upper limb of spring 12 is less than the length of piston 9 apart from the distance of the upper limb of plunger 3.
Bellows 13, one end of bellows 13 and the sealed bottom of the second buffering cylinder body 8 are additionally provided with second buffering cylinder body 8
Connection, the other end and the piston 9 of bellows 13 are tightly connected, and spring 12 is arranged in bellows 13, and bellows 13 and second is slow
Rush between the inwall of cylinder body 8 and be full of damping fluid 10.
With reference to the working method of embodiment 1, difference of the present embodiment 3 compared with embodiment 1 is, when punching is completed, the quilt of piston 9
Pressure row, piston 9 overcome the resistance of damping fluid 10 descending, overcome spring 12 again after the contact spring 12 of piston 9 buffering nut 6 soon
Elastic force is descending, is finally pressed in buffering nut 6 on plunger 3, buffers a part of stress again on the basis of embodiment 1, increases
Add secondary buffer, to reach more preferable buffering effect.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (9)
1. a kind of blanking buffer unit of hydraulic press, including the first buffering cylinder body, the first buffering cylinder body are fixedly connected on liquid
On the upper beam of press, plunger is provided with the first cushion dashpot body, the buffer pull rod runs through the center of the plunger, described slow
Rush the lower end of pull bar to be fixedly connected with the sliding block of hydraulic press, the upper end of the buffer pull rod is fixedly connected with buffering nut, described
A cavity is provided with plunger, the second buffering cylinder body is provided with the cavity, the buffer pull rod runs through the described second buffering cylinder body,
A piston is additionally provided with the second cushion dashpot body, the piston upper end buffers through described second and is arranged at institute at the top of cylinder body
State outside plunger, the piston is slideably positioned on the inwall of the second buffering cylinder body.
A kind of 2. blanking buffer unit of hydraulic press according to claim 1, it is characterised in that the second buffering cylinder body
Interior to be full of damping fluid, the piston is provided with damping fluid runner, and the damping fluid runner includes being respectively arranged at the piston shaft
Entrance and exit to both sides and with the entrance and the runner of the outlet.
3. the blanking buffer unit of a kind of hydraulic press according to claim 2, it is characterised in that the runner is along described
The through hole that piston axially penetrates through.
4. the blanking buffer unit of a kind of hydraulic press according to claim 2, it is characterised in that the runner is helical form
Runner.
A kind of 5. blanking buffer unit of hydraulic press according to claim 4, it is characterised in that the screw-shaped flow paths edge
The outer wall circumference spiral of the piston is set.
6. the blanking buffer unit of a kind of hydraulic press according to any one of claim 2 to 5, it is characterised in that described
Be additionally provided with spring in second cushion dashpot body, the spring is fixedly installed on the bottom of the second buffering cylinder body, the spring with
Gap is provided between the piston.
7. the blanking buffer unit of a kind of hydraulic press according to claim 6, it is characterised in that the buffer pull rod runs through
The center of the piston, and the spring housing is on the buffer pull rod.
A kind of 8. blanking buffer unit of hydraulic press according to claim 6, it is characterised in that the spring upper limb distance
The distance of the plunger upper limb is less than the length of the piston.
A kind of 9. blanking buffer unit of hydraulic press according to claim 7 or 8, it is characterised in that second buffering
Bellows is additionally provided with cylinder body, one end of the bellows is connected with the sealed bottom of the described second buffering cylinder body, the ripple
The other end of pipe is connected with the piston seal, and the spring is arranged in the bellows, the bellows and described second
The damping fluid is full of between the inwall of buffering cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737192.3U CN206868896U (en) | 2017-06-23 | 2017-06-23 | A kind of blanking buffer unit of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737192.3U CN206868896U (en) | 2017-06-23 | 2017-06-23 | A kind of blanking buffer unit of hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206868896U true CN206868896U (en) | 2018-01-12 |
Family
ID=61334100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720737192.3U Active CN206868896U (en) | 2017-06-23 | 2017-06-23 | A kind of blanking buffer unit of hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206868896U (en) |
-
2017
- 2017-06-23 CN CN201720737192.3U patent/CN206868896U/en active Active
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