CN206159166U - Doublestage buffering mode locking hydro -cylinder structure - Google Patents
Doublestage buffering mode locking hydro -cylinder structure Download PDFInfo
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- CN206159166U CN206159166U CN201621050859.4U CN201621050859U CN206159166U CN 206159166 U CN206159166 U CN 206159166U CN 201621050859 U CN201621050859 U CN 201621050859U CN 206159166 U CN206159166 U CN 206159166U
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Abstract
The utility model provides a doublestage buffering mode locking hydro -cylinder structure, includes piston rod, piston and oil cylinder component, and the piston is connected to piston rod one end, and piston rod and piston slide in oil cylinder component, the cover is equipped with the cushion collar on the piston rod, and the cushion collar surface is equipped with one -level buffer structure and second grade buffer structure, the corresponding buffering cooperation structure that is equipped with of oil cylinder component, and one -level buffer structure and second grade buffer structure cooperate the structure through the buffering in proper order, form the doublestage buffering. The utility model discloses a set up the cushion collar, make mode locking hydro -cylinder structure realize the doublestage buffering at least in compound die work. Set up one -level buffer structure and second grade buffer structure on the cushion collar, form a buffering (one -level buffering) and prevent to hit the mould before movable mould contact cover half, form another buffering (second grade buffering) after the high pressure and prevent that the piston from hitting at the end, make mould and mode locking hydro -cylinder more durable through the doublestage buffering, reduce the damage that the mode locking caused, just have simple structure rationally, prevent to hit that mould, compound die are efficient, the characteristics of dependable performance.
Description
Technical field
The utility model is related to a kind of Mode-locking oil cylinder, more particularly to a kind of dual-stage buffer Mode-locking oil cylinder structure.
Background technology
Mode-locking oil cylinder is the driver part of Hydraulic Double In A Diecasting Equipment clamping, and it is generally connected with crosshead, and locked mode oil
Cylinder promotes crosshead front-rear reciprocation movement by piston rod, and toggle link is rotated centered on a certain hinge after drive, then by front elbow
Bar promotes moving platen to move forward and backward, so as to realize the motion process of matched moulds and die sinking.Before moving platen moves to matched moulds termination
Certain position, when elbow-bar mechanism is not also stretched completely, mould just contacts (at this moment toggle angle is referred to as matched mould critical angle), this
Afterwards, moving platen continues motion under the promotion of piston rod and elbow-bar mechanism, forces toggle link, pull bar, template and mould that elasticity occurs
Deformation, so as to produce the deformation force for ensureing that mould will not be backed down by cavity pressure, as clamp force.After matched moulds terminates, rear toggle link
And front link between in line, clamping is located at self-locking state, even if hydraulic oil no longer provides pressure, clamp force is still deposited
.In the design of general Mode-locking oil cylinder, it will usually design first-level buffer structure, hit with oil cylinder cover when preventing piston from walking on earth
Bottom, but but do not account for when dynamic model just will be contacted with cover half mould it is possible that hit mould phenomenon.
Chinese patent literature CN201712134U discloses a kind of injector die sinking position restrainer on January 19th, 2011
Structure, specifically discloses including die sinking gag lever post, and limit plunger is slidably arranged on die sinking gag lever post, die sinking gag lever post connection locked mode
Cylinder；Mode locking cylinder includes installing locking piston in cylinder barrel, cylinder bonnet, cylinder front cover, cylinder barrel, and locking piston is connected with piston rod；It is spacing
Bar screw gag lever post screw gland is fixed on after cylinder and covers, and on gag lever post screw stop nut is installed；Cylinder barrel is drawn by locked mode
Bar links into an integrated entity with cylinder bonnet, cylinder front cover.The structure is exactly the presence of the problems referred to above, therefore, it is necessary to be further improved.
Utility model content
The purpose of this utility model aim to provide it is a kind of it is simple and reasonable, prevent from hitting mould, matched moulds efficiency high, dependable performance
Dual-stage buffer Mode-locking oil cylinder structure, to overcome weak point of the prior art.
By a kind of dual-stage buffer Mode-locking oil cylinder structure of this purpose design, including piston rod, piston and cylinder component, piston
Bar one end connects piston, and piston rod and piston slide in cylinder component；It is characterized in that：Upper cover of piston rod is provided with cushion collar,
Cushion collar surface is provided with first-level buffer structure and level 2 buffering structure, and cylinder component is correspondingly provided with buffering fit structure, and one-level is delayed
Rush structure and level 2 buffering structure sequentially passes through buffering fit structure, form dual-stage buffer.
The first-level buffer structure and level 2 buffering structure are respectively the annular protrusion on cushion collar surface, first-level buffer structure
There is gap between level 2 buffering structure.
The buffering fit structure is the annular protrusion on cylinder component inwall, and buffering is placed on sliding in buffering fit structure
It is dynamic, and first-level buffer structure and level 2 buffering structure at least sequentially pass through buffering fit structure in locked mode work.
The buffering fit structure matches respectively with first-level buffer structure and level 2 buffering structure.
Cylinder component inner chamber is divided into cushion chamber and oil pocket by the piston, and cylinder component is provided with and is respectively communicated with cushion chamber
Pressure release aperture and pressure release macropore, cushion chamber is extraneous by pressure release aperture and/or the connection of pressure release macropore.
The buffering fit structure is arranged between pressure release aperture and pressure release macropore.
The cylinder component includes drive end bearing bracket and cylinder body, front end cover seal closed cylinder one end, and piston rod is in drive end bearing bracket
Slide, buffering fit structure is raised in drive end bearing bracket inwall, and pressure release aperture and pressure release macropore are respectively arranged on drive end bearing bracket.
The cylinder component also includes rear end cap, and cylinder body or rear end cap are provided with oil transportation channel, the connection of oil transportation channel one end
Oil pocket, other end connection fuel tank.
The utility model makes Mode-locking oil cylinder structure at least realize dual-stage buffer in matched moulds work by arranging cushion collar.
First-level buffer structure and level 2 buffering structure are set specifically on cushion collar, before dynamic model contact cover half a buffering (is formed
Level buffering) prevent from hitting mould, high pressure forms another buffering (level 2 buffering) after terminating prevent piston from hitting bottom, is made by dual-stage buffer
Mould and Mode-locking oil cylinder are more robust, reduce the damage that causes of locked mode, and with it is simple and reasonable, prevent from hitting mould, matched moulds efficiency
High, dependable performance the characteristics of.
Description of the drawings
Sectional view when Fig. 1 is one embodiment first-level buffer of the utility model.
The sectional view in another orientation when Fig. 2 is one embodiment first-level buffer of the utility model.
Sectional view when Fig. 3 is one embodiment level 2 buffering of the utility model.
The sectional view in another orientation when Fig. 4 is one embodiment level 2 buffering of the utility model.
Fig. 5 is the partial enlarged drawing in Fig. 1 at I.
Fig. 6 is the partial enlarged drawing at I ' places in Fig. 3.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
Referring to Fig. 1-Fig. 6, this dual-stage buffer Mode-locking oil cylinder structure, including piston rod 1, piston 3 and cylinder component, piston rod
1 one end connects piston 3, and piston rod 1 and piston 3 slide in cylinder component；Cushion collar 7, cushion collar 7 are arranged with piston rod 1
Surface is provided with first-level buffer structure 7.1 and level 2 buffering structure 7.2, and cylinder component is correspondingly provided with buffering fit structure 2.1, one-level
Buffer structure 7.1 and level 2 buffering structure 7.2 sequentially pass through buffering fit structure 2.1, form dual-stage buffer.Dynamic model connects with cover half
Before touching, first-level buffer structure 7.1 is formed and buffered for the first time when buffering fit structure 2.1, prevents from hitting mould, can suitably be lifted
Low pressure closure pressing speed, while clamp force can not reduce high pressure closure pressing speed during setting up, so as to improve matched moulds efficiency；High voltage junction
Shu Hou, level 2 buffering structure 7.2 forms second and buffers through buffering fit structure 2.1, prevents piston 3 from hitting bottom, damages oil cylinder
Component.
Furtherly, the first-level buffer structure 7.1 and level 2 buffering structure 7.2 are respectively the annular on the surface of cushion collar 7
Projection, there is gap between first-level buffer structure 7.1 and level 2 buffering structure 7.2, buffering fit structure 2.1 is in first-level buffer structure
When between 7.1 and level 2 buffering structure 7.2, piston rod 1 can now properly increase speed, to improve efficiency without cushioning effect.
Furtherly, the buffering fit structure 2.1 is the annular protrusion on cylinder component inwall, and cushion collar 7 is in buffering
Slide in fit structure 2.1, and first-level buffer structure 7.1 and level 2 buffering structure 7.2 are at least sequentially passed through in locked mode work
Buffering fit structure 2.1.
Furtherly, it is described buffering fit structure 2.1 respectively with first-level buffer structure 7.1 and the phase of level 2 buffering structure 7.2
Matching.First-level buffer structure 7.1 or level 2 buffering structure 7.2 are matched each other when buffering fit structure 2.1, are realized
Sealing effect, pressure release speed is reduced, and reaches buffering effect.
Furtherly, cylinder component inner chamber is divided into cushion chamber A and oil pocket B by the piston 3, and cylinder component is provided with difference
The pressure release aperture 2.2 and pressure release macropore 2.3 of connection cushion chamber A, cushion chamber A is by pressure release aperture 2.2 and/or pressure release macropore 2.3
Connection is extraneous.When cushion chamber A connects the external world by pressure release aperture 2.2, pressure release speed is slow, in first-level buffer or level 2 buffering；
When cushion chamber A connects the external world by pressure release aperture 2.2 with pressure release macropore 2.3, pressure release speed is fast, and buffering effect disappears.
Furtherly, the buffering fit structure 2.1 is arranged between pressure release aperture 2.2 and pressure release macropore 2.3.In order to
The break-make of control cushion chamber A and pressure release macropore 2.3, and then realize dual-stage buffer.
Furtherly, the cylinder component includes drive end bearing bracket 2 and cylinder body 4, the sealing closed cylinder 4 of drive end bearing bracket 2 one end, piston
Bar 1 slides in drive end bearing bracket 2, and buffering fit structure 2.1 is raised in the inwall of drive end bearing bracket 2, pressure release aperture 2.2 and pressure release macropore 2.3
It is respectively arranged on drive end bearing bracket 2.
Furtherly, the cylinder component also includes rear end cap 6, and cylinder body 4 or rear end cap 6 are provided with oil transportation channel 6.1, defeated
The one end of oily passage 6.1 connects oil pocket B, other end connection fuel tank.
Operation principle：
The locked mode work of Mode-locking oil cylinder starts, and the oil mass in oil pocket B increases, and piston 3 slides, and cushion chamber A is little by pressure release
Hole 2.2 and the pressure release of pressure release macropore 2.3, and volume reduction, piston 3 promotes piston rod 1 to slide；Referring to Fig. 1, Fig. 2 and Fig. 5, piston
Bar 1 slides into certain position, and first-level buffer structure 7.1 can only pass through pressure release through buffering fit structure 2.1, now cushion chamber A
The pressure release of aperture 2.2, pressure release speed is slow, forms first-level buffer, can prevent from hitting mould, reduces the damage of mould；First-level buffer structure 7.1
After crossing buffering fit structure 2.1, cushion chamber A disappears again by pressure release aperture 2.2 and the pressure release of pressure release macropore 2.3, buffering effect
Lose, piston rod 1 continues normal slip；Referring to Fig. 3, Fig. 4 and Fig. 6, piston rod 1 continues to slide into certain position, level 2 buffering knot
Structure 7.2 can only be slow by the pressure release of pressure release aperture 2.2, pressure release speed through buffering fit structure 2.1, now cushion chamber A, forms two
Level buffering, can prevent piston 3 from hitting bottom, reduce the damage of cylinder component.
It is above-mentioned for preferred version of the present utility model, general principle of the present utility model, principal character has been shown and described
With advantage of the present utility model.Those skilled in the art should be recognized that the utility model is not restricted to the described embodiments, on
State and simply illustrate principle of the present utility model described in embodiment and specification, without departing from the utility model spirit and scope
On the premise of the utility model also have various changes and modifications, it is new that these changes and improvements both fall within this claimed practicality
In the range of type.The claimed scope of the utility model is defined by appending claims and its equivalent.
Claims (8)
1. a kind of dual-stage buffer Mode-locking oil cylinder structure, including piston rod (1), piston (3) and cylinder component, piston rod (1) one end
Connection piston (3), piston rod (1) and piston (3) slide in cylinder component；It is characterized in that：It is arranged with piston rod (1) slow
Punching set (7), cushion collar (7) surface is provided with first-level buffer structure (7.1) and level 2 buffering structure (7.2), and cylinder component correspondence sets
There is buffering fit structure (2.1), first-level buffer structure (7.1) and level 2 buffering structure (7.2) sequentially pass through buffering fit structure
(2.1), dual-stage buffer is formed.
2. dual-stage buffer Mode-locking oil cylinder structure according to claim 1, it is characterised in that：The first-level buffer structure (7.1)
With the annular protrusion that level 2 buffering structure (7.2) is respectively cushion collar (7) surface, first-level buffer structure (7.1) and level 2 buffering
Structure has gap between (7.2).
3. dual-stage buffer Mode-locking oil cylinder structure according to claim 2, it is characterised in that：Buffering fit structure (2.1)
For the annular protrusion on cylinder component inwall, cushion collar (7) slides in buffering fit structure (2.1), and first-level buffer structure
(7.1) at least sequentially pass through in locked mode work and buffer fit structure (2.1) with level 2 buffering structure (7.2).
4. dual-stage buffer Mode-locking oil cylinder structure according to claim 3, it is characterised in that：Buffering fit structure (2.1)
Match with first-level buffer structure (7.1) and level 2 buffering structure (7.2) respectively.
5. dual-stage buffer Mode-locking oil cylinder structure according to claim 4, it is characterised in that：The piston (3) is by cylinder component
Inner chamber is divided into cushion chamber (A) and oil pocket (B), and cylinder component is provided with the pressure release aperture (2.2) that is respectively communicated with cushion chamber (A) and lets out
Pressure macropore (2.3), cushion chamber (A) is extraneous by pressure release aperture (2.2) and/or pressure release macropore (2.3) connection.
6. dual-stage buffer Mode-locking oil cylinder structure according to claim 5, it is characterised in that：Buffering fit structure (2.1)
It is arranged between pressure release aperture (2.2) and pressure release macropore (2.3).
7. the dual-stage buffer Mode-locking oil cylinder structure according to any one of claim 1-6, it is characterised in that：The cylinder component bag
Drive end bearing bracket (2) and cylinder body (4) are included, drive end bearing bracket (2) sealing closed cylinder (4) one end, piston rod (1) slides in drive end bearing bracket (2),
Buffering fit structure (2.1) is raised in drive end bearing bracket (2) inwall, before pressure release aperture (2.2) and pressure release macropore (2.3) are respectively arranged at
On end cap (2).
8. dual-stage buffer Mode-locking oil cylinder structure according to claim 7, it is characterised in that：The cylinder component also includes rear end
Lid (6), cylinder body (4) or rear end cap (6) are provided with oil transportation channel (6.1), and oil transportation channel (6.1) one end connection oil pocket (B) is another
End connection fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050859.4U CN206159166U (en) | 2016-09-12 | 2016-09-12 | Doublestage buffering mode locking hydro -cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050859.4U CN206159166U (en) | 2016-09-12 | 2016-09-12 | Doublestage buffering mode locking hydro -cylinder structure |
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| Publication Number | Publication Date |
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| CN206159166U true CN206159166U (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621050859.4U Active CN206159166U (en) | 2016-09-12 | 2016-09-12 | Doublestage buffering mode locking hydro -cylinder structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199689A (en) * | 2017-08-04 | 2017-09-26 | 台州市祥珑容器科技有限公司 | Blow moulding machine |
-
2016
- 2016-09-12 CN CN201621050859.4U patent/CN206159166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199689A (en) * | 2017-08-04 | 2017-09-26 | 台州市祥珑容器科技有限公司 | Blow moulding machine |
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