CN106594151B - A kind of blanking cushion dashpot based on damping principle - Google Patents
A kind of blanking cushion dashpot based on damping principle Download PDFInfo
- Publication number
- CN106594151B CN106594151B CN201611106178.XA CN201611106178A CN106594151B CN 106594151 B CN106594151 B CN 106594151B CN 201611106178 A CN201611106178 A CN 201611106178A CN 106594151 B CN106594151 B CN 106594151B
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- Prior art keywords
- buffer bar
- hole
- damping
- resistance cylinders
- secondary segment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of blanking cushion dashpot based on damping principle, comprising: buffer bar, end cap and resistance cylinders；Resistance cylinders are top opening, and center is machined with the cylinder body of cylinder stepped hole；End cap is assemblied in resistance cylinders upper end；Buffer bar is to damp the not isometrical cylinder body of rod that section forms by top telescopic segment, middle part secondary segment and lower part；Middle part secondary segment and lower part damping section are inserted into the stepped hole of resistance cylinders, and are microgap cooperation with stepped hole inner wall；Super-pressure is intracavitary to be provided with oil liquid, promotes the middle part secondary segment of buffer bar to be located in major diameter cylindrical hole and floats, i.e., the major diameter cylindrical hole of resistance cylinders stepped hole is divided into the compensated cavity of lower part and the oil pocket on top by the middle part secondary segment of buffer bar；The same injecting oil liquid of compensated cavity assists the overflow ducts of setting connection compensated cavity and upper oil chamber at middle part in the damping hole of lower part damping section setting connection compensated cavity and super-pressure chamber, so formed can the impact of anti-big load blanking cushion dashpot.
Description
Technical field
The present invention relates to sheet metal forming field, in particular to a kind of blanking cushion dashpot based on damping principle.
Background technique
Existing blanking buffering is link important in sheet-metal press working blanking process, buffering effect directly determines service life of press with
The service life of mold.When steel plate is after the compression moulding of mold, the material head needs of needed position are removed by die shear, steel
The unexpected mistake that instantaneously will cause press of plate tearing carries, and the mistake of press carries the strenuous vibration for necessarily leading to fuselage and pipeline impact.
It is damaged to alleviate impact endurance test shock to press bring, should all be furnished with cushion dashpot on high-end blanking press.Existing cushion dashpot
It is all based on the piston cylinder of normal pressures, this cushion dashpot cannot meet the requirement of user well.In order to meet new process
Demand need to research and develop a kind of efficient new-type cushion dashpot.
The shortcomings that existing cushion dashpot:
1. cushion dashpot is pot type piston cylinder, cushion stroke is long, and mold is complicated；
2. cushion dashpot realizes that huge shock loading is born in the closing of cylinder body, sealing by sealing, service life is short, maintenance
Heavy workload；
3. the piston diameter of cushion dashpot is big, buffering cylinder volume is big, is not available in the press of limited space.
Summary of the invention
The present invention in view of the above technical problems, proposes a kind of blanking cushion dashpot based on damping principle.
To achieve the above objectives, it is achieved through the following technical solutions:
A kind of blanking cushion dashpot based on damping principle, comprising: buffer bar, end cap and resistance cylinders；
Resistance cylinders are top opening, and center is machined with the cylinder body of cylinder stepped hole；
Buffer bar is to damp the not isometrical cylinder body of rod that section forms by top telescopic segment, middle part secondary segment and lower part；
Wherein, damping section in lower part is inserted into the path cylindrical hole of resistance cylinders stepped hole bottom, with stepped hole bottom
Path cylindrical hole inner arm is microgap cooperation, and lower part damping section thickness is less than path cylinder hole depth, in path cylindrical hole
Wall forms super-pressure chamber；
Super-pressure is intracavitary to be provided with oil liquid；
Middle part secondary segment is inserted into the major diameter cylindrical hole on resistance cylinders stepped hole top, middle part secondary segment and stepped hole bottom
The major diameter cylindrical hole in portion is microgap cooperation, and middle part secondary segment thickness is less than major diameter cylinder hole depth；
Super-pressure is intracavitary to be provided with oil liquid, promotes the middle part secondary segment of buffer bar to be located in major diameter cylindrical hole and floats, i.e., slow
The major diameter cylindrical hole of resistance cylinders stepped hole is divided into the compensated cavity of lower part and the oil pocket on top by the middle part secondary segment of jumper bar；
Wherein, damping section in buffer bar lower part is machined with the damping hole being connected to for being connected to super-pressure chamber with compensated cavity, buffers
The middle part secondary segment of bar is provided with the overflow ducts for being connected to compensated cavity and oil pocket；
Conjunction bolt by being assemblied in resistance cylinders top end opening position by end cap, between end cap and resistance cylinders fit-up gap
It is provided with sealing element, the through-hole that telescopic segment is stretched out at the top of buffer bar, and telescopic segment outer wall at the top of buffer bar are preset on end cap
Dynamic seal is provided between through-hole wall.
The lower end cylindrical surface of the present invention by adopting the above technical scheme, buffer bar have passed through high-precision machining, with
The cavity of resorption cylindrical of resistance cylinders cooperates at microgap, microgap cooperation effect be so that buffer bar can move up and down and
It can guarantee that resistance cylinders cavity of resorption can form super-pressure chamber, it is a kind of seal form established on the basis of machining accuracy；Buffering
The lower part damping section of bar is machined with damping hole, it is the inlet and outlet channel of super-pressure chamber oil liquid.The middle part of buffer bar assists
Section is machined with overflow ducts, the intercommunication for compensated cavity and damping cylinder epicoele oil liquid.
Initial phase, buffer bar is in upper limit, and the super-pressure chamber and compensated cavity of damping cylinder have been filled with oil liquid, oil liquid at this time
Pressure is 0, and cushion dashpot is not to external offer cushion effect；When needing to provide cushion effect, buffer bar drives downlink by associated part, this
When super-pressure chamber oil liquid squeezed rapidly under external force and simultaneously form high pressure, the liquid effects of high pressure in super-pressure chamber
In the lower end surface of buffer bar, buffer bar provides cushion effect upwards at this time；Due to the presence of damping hole, micro high pressure oil is by from super
High pressure chest is squeezed into the oil pocket that compensated cavity enters damping cylinder top from compensated cavity through overflow ducts again, and hereafter buffer bar is able to downwards
Movement, the stroke that the cushion effect and buffer bar that buffer bar provides move downward are exactly the buffering that this buffer system outwardly provides.
Buffer bar upper end and associated part are detached from after buffering, and buffer bar is joined at cavity of resorption (including super-pressure chamber and compensated cavity)
It is resetted with uplink under the action of pressure, carries out the preparation of buffering next time.
To sum up, the invention has the advantages that:
1. the super-pressure chamber and compensated cavity of cushion dashpot form closing chamber using microgap, it is no longer necessary to which high pressure sealing improves
The reliability of cushion dashpot；
2. it is provided with super-pressure chamber, can be in the huge cushion effect of instantaneously offer of buffering, " explosive force " of cushion dashpot is very big,
Improve the efficiency of cushion dashpot；
3. the co-design of super-pressure chamber and damping hole, overflow ducts to provide sufficiently large buffering in micro-stroke
It is tapping into for possibility, shortens the blanking cushion stroke of mold, save the cost of mold；
4. cushion dashpot does not need extraneous offer hydraulic oil, upper and lower chamber oil liquid can be used interchangeably, and save external control pipeline
And valve group, it saves manufacturing cost, reduce working service amount.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
The present invention totally 1 width attached drawing, wherein:
Fig. 1 is the schematic diagram of the section structure of the invention.
In figure: 1, buffer bar, 2, conjunction bolt, 3, end cap, 4, resistance cylinders, 5, sealing element, 6, dynamic seal, 7, damping
Hole, 8, overflow ducts, A, super-pressure chamber, B, compensated cavity, C, oil pocket.
Specific embodiment
A kind of blanking cushion dashpot based on damping principle as shown in Figure 1, comprising: buffer bar 1, end cap 3 and resistance cylinders
4；
Resistance cylinders 4 are top opening, and center is machined with the cylinder body of cylinder stepped hole；
Buffer bar 1 is to damp the not isometrical cylinder body of rod that section forms by top telescopic segment, middle part secondary segment and lower part；
Wherein, damping section in lower part is inserted into the path cylindrical hole of 4 stepped hole bottom of resistance cylinders, with stepped hole bottom
Path cylindrical hole inner arm is microgap cooperation, and lower part damping section thickness is less than path cylinder hole depth, in path cylindrical hole
Wall forms super-pressure chamber A；
Oil liquid is provided in super-pressure chamber A；
Middle part secondary segment is inserted into the major diameter cylindrical hole on 4 stepped hole top of resistance cylinders, middle part secondary segment and stepped hole
The major diameter cylindrical hole of bottom is microgap cooperation, and middle part secondary segment thickness is less than major diameter cylinder hole depth；
It is provided with oil liquid in super-pressure chamber A, promotes the middle part secondary segment of buffer bar 1 to be located in major diameter cylindrical hole and floats, i.e.,
The major diameter cylindrical hole of 4 stepped hole of resistance cylinders is divided into the compensated cavity B of lower part and the oil on top by the middle part secondary segment of buffer bar 1
Chamber C；
Wherein, damping section in 1 lower part of buffer bar is machined with the damping hole 7 being connected to for being connected to super-pressure chamber A with compensated cavity B,
The middle part secondary segment of buffer bar 1 is provided with the overflow ducts 8 for being connected to compensated cavity B and oil pocket C；
Conjunction bolt 2 by being assemblied in 4 top end opening position of resistance cylinders, end cap 3 and 4 assembly building of resistance cylinders by end cap 3
It is provided between gap sealing element 5 (static sealing ring), the through-hole of 1 top telescopic segment of buffer bar stretching is preset on end cap 3, and slow
Dynamic seal 6 (dynamic seal ring) is provided between 1 top telescopic segment outer wall of jumper bar and through-hole wall.
The lower end cylindrical surface of the present invention by adopting the above technical scheme, buffer bar 1 have passed through high-precision machining, with
The cavity of resorption cylindrical of resistance cylinders 4 cooperates at microgap, and the effect of microgap cooperation is so that buffer bar 1 can move up and down
It can guarantee that 4 cavity of resorption of resistance cylinders can form super-pressure chamber again, it is a kind of seal form established on the basis of machining accuracy；It is slow
The lower part damping section of jumper bar 1 is machined with damping hole 7, it is the inlet and outlet channel of super-pressure chamber oil liquid.The middle part of buffer bar 1
Secondary segment is machined with overflow ducts 8, the intercommunication for 4 epicoele oil liquid of compensated cavity and damping cylinder.
Initial phase, buffer bar 1 is in upper limit, and the super-pressure chamber A and compensated cavity B of damping cylinder 4 have been filled with oil liquid at this time,
Oil liquid pressure is 0, and cushion dashpot is not to external offer cushion effect；When needing to provide cushion effect, buffer bar 1 is driven down by associated part
Row, the oil liquid of super-pressure chamber A is squeezed rapidly under external force and simultaneously forms high pressure in super-pressure chamber A at this time, high pressure
Liquid effects provide cushion effect in the lower end surface of buffer bar 1, buffer bar upwards at this time；Due to the presence of damping hole 7, micro height
Pressure oil is squeezed into the oil pocket C that compensated cavity B enters damping cylinder top from compensated cavity through overflow ducts again from super-pressure chamber A, hereafter
Buffer bar 1 is moved downward, and the stroke that the cushion effect and buffer bar 1 that buffer bar 1 provides move downward is exactly this buffer system
The buffering outwardly provided.
1 upper end of buffer bar and associated part are detached from after buffering, and buffer bar 1 is in cavity of resorption (including super-pressure chamber A and compensated cavity
B uplink resets under the action of) participating in pressure, carries out the preparation of buffering next time.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made for any of the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (1)
1. a kind of blanking cushion dashpot based on damping principle characterized by comprising buffer bar (1), end cap (3) and damping cylinder
Body (4)；
The resistance cylinders (4) are top opening, and center is machined with the cylinder body of cylinder stepped hole；
The buffer bar (1) is to damp the not isometrical cylinder body of rod that section forms by top telescopic segment, middle part secondary segment and lower part；
Wherein, damping section in lower part is inserted into the path cylindrical hole of resistance cylinders (4) stepped hole bottom, small with stepped hole bottom
Diameter cylindrical hole inner wall is microgap cooperation, and lower part damping section thickness is less than path cylinder hole depth, with path cylindrical hole inner wall
It is formed super-pressure chamber (A)；
Oil liquid is provided in the super-pressure chamber (A)；
Middle part secondary segment is inserted into the major diameter cylindrical hole on resistance cylinders (4) stepped hole top, middle part secondary segment and stepped hole bottom
The major diameter cylindrical hole in portion is microgap cooperation, and middle part secondary segment thickness is less than major diameter cylinder hole depth；
It is provided with oil liquid in the super-pressure chamber (A), promotes the middle part secondary segment of buffer bar (1) to be located in major diameter cylindrical hole and floats
It is dynamic, i.e. the middle part secondary segment of buffer bar (1) compensated cavity that the major diameter cylindrical hole of resistance cylinders (4) stepped hole is divided into lower part
(B) and the oil pocket on top (C)；
Wherein, damping section in buffer bar (1) lower part is machined with the damping hole being connected to for being connected to super-pressure chamber (A) with compensated cavity (B)
(7), the middle part secondary segment of buffer bar (1) is provided with the overflow ducts (8) for being connected to compensated cavity (B) and oil pocket (C)；
Conjunction bolt (2) by being assemblied in resistance cylinders (4) top end opening position, end cap (3) and resistance cylinders by the end cap (3)
(4) it is provided between fit-up gap sealing element (5), the logical of buffer bar (1) top telescopic segment stretching is preset on end cap (3)
Hole, and dynamic seal (6) are provided between telescopic segment outer wall and through-hole wall at the top of buffer bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611106178.XA CN106594151B (en) | 2016-12-05 | 2016-12-05 | A kind of blanking cushion dashpot based on damping principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611106178.XA CN106594151B (en) | 2016-12-05 | 2016-12-05 | A kind of blanking cushion dashpot based on damping principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594151A CN106594151A (en) | 2017-04-26 |
| CN106594151B true CN106594151B (en) | 2019-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611106178.XA Active CN106594151B (en) | 2016-12-05 | 2016-12-05 | A kind of blanking cushion dashpot based on damping principle |
Country Status (1)
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283208A (en) * | 1999-03-30 | 2000-10-13 | Showa Corp | Hydraulic shock absorber |
| CN2668924Y (en) * | 2003-03-18 | 2005-01-05 | 郭传贤 | Hydraulic cylinder type buffer |
| CN101598156B (en) * | 2009-06-17 | 2012-03-14 | 江苏恒立高压油缸股份有限公司 | Floating-type cushion cylinder |
| CN104564908A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Buffer hydraulic cylinder |
| CN204419758U (en) * | 2014-12-31 | 2015-06-24 | 中船重工中南装备有限责任公司 | A kind of buffering hydraulic cylinder |
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2016
- 2016-12-05 CN CN201611106178.XA patent/CN106594151B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106594151A (en) | 2017-04-26 |
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