CN106704304A - Novel jacking cylinder for press - Google Patents
Novel jacking cylinder for press Download PDFInfo
- Publication number
- CN106704304A CN106704304A CN201611110817.XA CN201611110817A CN106704304A CN 106704304 A CN106704304 A CN 106704304A CN 201611110817 A CN201611110817 A CN 201611110817A CN 106704304 A CN106704304 A CN 106704304A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- end cover
- sliding block
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
Abstract
The invention discloses a novel jacking cylinder for a press. The novel jacking cylinder comprises an upper cylinder body, a lower cylinder body, a lower end cover, a guide rail, a slide block and a piston. The novel jacking cylinder is characterized in that mounting holes and limiting grooves are formed in the upper cylinder body; the lower cylinder body is connected with the upper cylinder body through a connection thread; the lower end cover is connected with the lower cylinder body; the two ends of the guide rail are both movably arranged in the limiting grooves, and connection holes are formed in the guide rail; the slide block is arranged in the upper cylinder body, and locating holes are formed in the slide block; the piston is arranged in the lower cylinder body; and an upper cavity is formed between the piston and the lower cylinder body, and a lower cavity is formed between the piston and the lower end cover. According to the novel jacking cylinder for the press, a sealing ring is arranged between the lower cylinder body and the lower end cover, sealing performance achieved between the lower cylinder body and the lower end cover is improved, leakage of pressure oil in the lower cavity is avoided, and quality performance of the jacking cylinder is improved; and the upper cylinder body is connected with the lower cylinder body through the connection thread, the jacking cylinder can be disassembled, maintained and repaired conveniently, and the service life of the jacking cylinder is prolonged.
Description
Technical field
The present invention relates to a kind of Principal Components of Press, specifically a kind of forcing press is with new jack-up cylinder.
Background technology
In the forcing press course of work, during forcing press more mold exchange, the jack-up cylinder of forcing press is needed mobile work platform top
Rise, complete the operation of mobile work platform jack-up more than existing mode using jack-up cylinder.Such as Application No. 201320313618.4
Patent disclosure moveable platform of press jack-up oil cylinder, which solve the bad problem of piston guide, but there is
Jack-up cylinder inconvenience maintenance and repair, that operating personnel can not intuitively understand jack-up cylinder working situation, jack-up cylinder capability and performance is not good not
Foot.
The content of the invention
The purpose of the present invention is directed to inconvenient maintenance and repair, the operating personnel of the jack-up cylinder presence for being currently used for forcing press not
The not good problem of jack-up cylinder working situation, jack-up cylinder capability and performance can intuitively be understood, there is provided a kind of reasonable in design, qualitative
The good, airtight quality of energy is high, operating personnel can intuitively understand jack-up cylinder working situation, be easy to the forcing press novel top of maintenance and repair
Play cylinder.
Present invention solves the technical problem that the technical scheme taken is：
A kind of forcing press new jack-up cylinder, including upper cylinder body, lower cylinder body, bottom end cover, guide rail, sliding block and piston, its feature exist
In, mounting hole, stopper slot are provided with described upper cylinder body, described lower cylinder body is connected by connection screw thread with upper cylinder body, institute
The bottom end cover stated is connected with lower cylinder body, and described guide rail two ends are movably arranged in stopper slot, and the company of being provided with guide rail
Hole is connect, described sliding block is arranged in upper cylinder body, and location hole is provided with sliding block, described piston is arranged on lower cylinder body
It is interior, and epicoele, cavity of resorption are provided between piston and lower cylinder body and piston and bottom end cover respectively, set between upper cylinder body and sliding block
Dust ring is equipped with, by dust ring sliding block dust in moving process can be avoided to enter into upper cylinder body, improve jack-up cylinder
Capability and performance, is provided with detection bar on sliding block, and one end of detection bar is passed through into upper cylinder body, and operator is easy to by detection bar
Member's working condition for understanding jack-up cylinder directly perceived, facilitates the work of operating personnel, and sliding block is connected by connecting screw rod with piston,
Cavity of resorption is provided between piston and bottom end cover, and the cavity of resorption oil inlet being connected with cavity of resorption, forcing press are provided with bottom end cover
When needing jack-up, by cavity of resorption oil inlet to pressure oil is injected in cavity of resorption, piston promotes sliding block to be moved in lower cylinder body, so as to push up
Forcing press is played, when lower cavity pressure oil is excessive, pressure oil is discharged by the oil return opening on lower cylinder body, when forcing press falls, pressure
The deadweight of power machine pushes down on sliding block, and then promotes piston, by the pressure oil in cavity of resorption by cavity of resorption oil inlet oil return, in lower cylinder
Sealing ring is provided between body and bottom end cover, the sealing between lower cylinder body and bottom end cover is improve, it is to avoid lower cavity pressure oil
Leakage, improve jack-up cylinder capability and performance, upper cylinder body is connected with lower cylinder body by connection screw thread, be easy to tearing open for jack-up cylinder
Point, maintenance and repair, extend the service life of jack-up cylinder.
Dust ring is provided between described upper cylinder body and sliding block.
Detection bar is provided with described sliding block, and one end of detection bar is passed through into upper cylinder body.
Described sliding block is connected by connecting screw rod with piston.
Sealing block is provided between described lower cylinder body and piston.
The oil return opening being connected with epicoele is provided with described lower cylinder body.
Sealing ring is provided between described lower cylinder body and bottom end cover.
The cavity of resorption oil inlet being connected with cavity of resorption is provided with described bottom end cover.
Beneficial effect：The present invention is provided with dust ring between upper cylinder body and sliding block, and sliding block can be avoided by dust ring
Dust is entered into upper cylinder body in moving process, improves the capability and performance of jack-up cylinder, and detection bar is provided with sliding block, and will
One end of detection bar passes through upper cylinder body, is easy to operating personnel intuitively to understand the working condition of jack-up cylinder by detection bar, facilitates
The work of operating personnel, sliding block is connected by connecting screw rod with piston, is provided with cavity of resorption between piston and bottom end cover, and
The cavity of resorption oil inlet being connected with cavity of resorption is provided with bottom end cover, when forcing press needs jack-up, by cavity of resorption oil inlet in cavity of resorption
Injection pressure oil, piston promotes sliding block to be moved in lower cylinder body, thus jack-up forcing press, when lower cavity pressure oil is excessive, pressure
Power oil is discharged by the oil return opening on lower cylinder body, and when forcing press falls, the deadweight of forcing press pushes down on sliding block, and then promotes work
Plug, by the pressure oil in cavity of resorption by cavity of resorption oil inlet oil return, is provided with sealing ring between lower cylinder body and bottom end cover, improves
Sealing between lower cylinder body and bottom end cover, it is to avoid the leakage of lower cavity pressure oil, improves the capability and performance of jack-up cylinder, by upper cylinder half
Body is connected with lower cylinder body by connection screw thread, is easy to fractionation, the maintenance and repair of jack-up cylinder, extends the service life of jack-up cylinder.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is Section A-A schematic diagram of the invention.
Fig. 3 is section B-B schematic diagram of the invention.
In figure：1. upper cylinder body, 2. lower cylinder body, 3. bottom end cover, 4. guide rail, 5. sliding block, 6. piston, 7. mounting hole, 8. spacing
Groove, 9. connection screw thread, 10. connecting hole, 11. location holes, 12. dust rings, 13. detection bars, 14. sealing blocks, 15. connecting screw rods,
16. epicoeles, 17. sealing rings, 18. cavity of resorptions, 19. cavity of resorption oil inlets, 20. oil return openings.
Specific embodiment
The present invention is described in detail below with reference to accompanying drawing.
As illustrated in the accompanying drawings from 1 to 3, a kind of forcing press new jack-up cylinder, including upper cylinder body 1, lower cylinder body 2, bottom end cover 3, guide rail
4th, sliding block 5 and piston 6, it is characterised in that mounting hole 7, stopper slot 8 are provided with described upper cylinder body 1, by mounting hole 7 just
In the installation of jack-up cylinder, described lower cylinder body 2 is connected with upper cylinder body 1 by connection screw thread 9, upper cylinder body 1 is passed through with lower cylinder body 2
Connection screw thread 9 is connected, and is easy to fractionation, the maintenance and repair of jack-up cylinder, extends the service life of jack-up cylinder, described bottom end cover 3
It is connected with lower cylinder body 2, and sealing ring 17 is provided between lower cylinder body 2 and bottom end cover 3, is set between lower cylinder body 2 and bottom end cover 3
Sealing ring 17 is equipped with, the sealing between lower cylinder body 2 and bottom end cover 3 is improve, it is to avoid the leakage of pressure oil in cavity of resorption 18, improved
The capability and performance of jack-up cylinder, the described two ends of guide rail 4 are movably arranged in stopper slot 8, and are provided with connecting hole on guide rail 4
10, guide rail 4 is movably arranged in stopper slot 8, it is to avoid the situation that guide rail 4 is subjected to displacement, guide rail 4 is easy to by connecting hole 10
Connection, described sliding block 5 is arranged in upper cylinder body 1, and location hole 11 is provided with sliding block 5, avoids sliding by location hole 11
The situation that block 5 is subjected to displacement in sliding process, is provided with dust ring 12, by dust-proof between described upper cylinder body 1 and sliding block 5
Circle 12 can avoid the dust in moving process of sliding block 5 from entering into upper cylinder body 1, improve the capability and performance of jack-up cylinder, described
Detection bar 13 is provided with sliding block 5, and one end of detection bar 13 is passed through into upper cylinder body 1, operating personnel are easy to by detection bar 13
The working condition for understanding jack-up cylinder directly perceived, facilitates the work of operating personnel, and described sliding block 5 passes through connecting screw rod 15 and piston
6 connections, the bonding strength between sliding block 5 and piston 6 is improve by connecting screw rod 15, and described piston 6 is arranged on lower cylinder body 2
It is interior, and epicoele 16, cavity of resorption 18, described lower cylinder body are provided between piston 6 and lower cylinder body 2 and piston 6 and bottom end cover 3 respectively
Sealing block 14 is provided between 2 and piston 6, the oil return opening 20 being connected with epicoele 16 is provided with described lower cylinder body 2, it is described
The cavity of resorption oil inlet 19 being connected with cavity of resorption 18 is provided with bottom end cover 3, sliding block 5 is connected by connecting screw rod 9 with piston 6,
Cavity of resorption 18 is provided between piston 6 and bottom end cover 3, and the cavity of resorption oil inlet 19 being connected with cavity of resorption 18 is provided with bottom end cover 3,
When forcing press needs jack-up, sliding block 5 is promoted in lower cylinder body 2 to pressure oil, piston 6 is injected in cavity of resorption 18 by cavity of resorption oil inlet 19
Interior motion, so that jack-up forcing press, when pressure oil is excessive in cavity of resorption 18, pressure oil is by the row of oil return opening 20 on lower cylinder body 2
Go out, when forcing press falls, the deadweight of forcing press pushes down on sliding block 5, and then promotes piston 6, and the pressure oil in cavity of resorption 18 is led to
Cross the oil return of cavity of resorption oil inlet 19, it is possible to increase the operating efficiency of forcing press.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (8)
1. a kind of forcing press new jack-up cylinder, including upper cylinder body, lower cylinder body, bottom end cover, guide rail, sliding block and piston, its feature
It is that mounting hole, stopper slot are provided with described upper cylinder body, described lower cylinder body is connected by connection screw thread with upper cylinder body,
Described bottom end cover is connected with lower cylinder body, and described guide rail two ends are movably arranged in stopper slot, and are provided with guide rail
Connecting hole, described sliding block is arranged in upper cylinder body, and location hole is provided with sliding block, and described piston is arranged on lower cylinder body
It is interior, and epicoele, cavity of resorption are provided between piston and lower cylinder body and piston and bottom end cover respectively.
2. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that between described upper cylinder body and sliding block
It is provided with dust ring.
3. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that detection is provided with described sliding block
Bar, and one end of detection bar is passed through into upper cylinder body.
4. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that described sliding block passes through connecting screw rod
It is connected with piston.
5. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that between described lower cylinder body and piston
It is provided with sealing block.
6. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that be provided with described lower cylinder body with
The oil return opening of epicoele connection.
7. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that described lower cylinder body and bottom end cover it
Between be provided with sealing ring.
8. forcing press according to claim 1 is with new jack-up cylinder, it is characterised in that be provided with described bottom end cover with
The cavity of resorption oil inlet of cavity of resorption connection.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875474.9A CN108869452A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201611110817.XA CN106704304B (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of forcing press |
| CN201810875607.2A CN108869453A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201810875439.7A CN108869442A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875608.7A CN108869454A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110817.XA CN106704304B (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of forcing press |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810875608.7A Division CN108869454A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875439.7A Division CN108869442A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875607.2A Division CN108869453A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201810875474.9A Division CN108869452A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704304A true CN106704304A (en) | 2017-05-24 |
| CN106704304B CN106704304B (en) | 2018-09-18 |
Family
ID=58937566
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810875608.7A Pending CN108869454A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875607.2A Pending CN108869453A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201810875439.7A Pending CN108869442A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875474.9A Pending CN108869452A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201611110817.XA Expired - Fee Related CN106704304B (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of forcing press |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810875608.7A Pending CN108869454A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875607.2A Pending CN108869453A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
| CN201810875439.7A Pending CN108869442A (en) | 2016-12-06 | 2016-12-06 | A kind of novel jack-up cylinder of press machine |
| CN201810875474.9A Pending CN108869452A (en) | 2016-12-06 | 2016-12-06 | The novel jack-up cylinder of press machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN108869454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654443A (en) * | 2017-08-28 | 2018-02-02 | 无锡瑞真精机股份有限公司 | Telescopic hydraulic makes concentric mechanism by oneself |
| CN107827018A (en) * | 2017-10-31 | 2018-03-23 | 奇瑞汽车股份有限公司 | A kind of interior jacking system of press bench |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178193A (en) * | 2000-12-12 | 2002-06-25 | Toyota Motor Corp | Hydraulic press |
| CN201244732Y (en) * | 2008-09-10 | 2009-05-27 | 徐州压力机械有限公司 | Jacking and clamp device for moveable platform |
| CN201872285U (en) * | 2010-11-26 | 2011-06-22 | 天津市天锻压力机有限公司 | Mold adjusting auxiliary device for glass steel hydraulic machine |
| CN202628677U (en) * | 2012-06-04 | 2012-12-26 | 格力乐液压系统(常州)有限公司 | Hydraulic cylinder with scale bar |
| CN203297191U (en) * | 2013-06-03 | 2013-11-20 | 济南二机床集团有限公司 | Jacking oil cylinder of press machine moving workbench |
| CN203321933U (en) * | 2013-07-02 | 2013-12-04 | 上海松科机械自动化技术有限公司 | Jacking-clamping combined oil cylinder |
| CN104384917A (en) * | 2014-09-26 | 2015-03-04 | 中核（天津）机械有限公司 | Coaxiality regulating and locating device |
| CN204436927U (en) * | 2015-01-20 | 2015-07-01 | 宿州学院 | A kind of flexible adjustable pressurized cylinder |
| CN205423390U (en) * | 2016-03-17 | 2016-08-03 | 宁波海天精工股份有限公司 | Stroke adjustable main shaft unclamping cylinder |
| CN206386337U (en) * | 2016-12-06 | 2017-08-08 | 安徽海拓志永智能装备股份有限公司 | A kind of forcing press is with new jack-up cylinder |
-
2016
- 2016-12-06 CN CN201810875608.7A patent/CN108869454A/en active Pending
- 2016-12-06 CN CN201810875607.2A patent/CN108869453A/en active Pending
- 2016-12-06 CN CN201810875439.7A patent/CN108869442A/en active Pending
- 2016-12-06 CN CN201810875474.9A patent/CN108869452A/en active Pending
- 2016-12-06 CN CN201611110817.XA patent/CN106704304B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178193A (en) * | 2000-12-12 | 2002-06-25 | Toyota Motor Corp | Hydraulic press |
| CN201244732Y (en) * | 2008-09-10 | 2009-05-27 | 徐州压力机械有限公司 | Jacking and clamp device for moveable platform |
| CN201872285U (en) * | 2010-11-26 | 2011-06-22 | 天津市天锻压力机有限公司 | Mold adjusting auxiliary device for glass steel hydraulic machine |
| CN202628677U (en) * | 2012-06-04 | 2012-12-26 | 格力乐液压系统(常州)有限公司 | Hydraulic cylinder with scale bar |
| CN203297191U (en) * | 2013-06-03 | 2013-11-20 | 济南二机床集团有限公司 | Jacking oil cylinder of press machine moving workbench |
| CN203321933U (en) * | 2013-07-02 | 2013-12-04 | 上海松科机械自动化技术有限公司 | Jacking-clamping combined oil cylinder |
| CN104384917A (en) * | 2014-09-26 | 2015-03-04 | 中核（天津）机械有限公司 | Coaxiality regulating and locating device |
| CN204436927U (en) * | 2015-01-20 | 2015-07-01 | 宿州学院 | A kind of flexible adjustable pressurized cylinder |
| CN205423390U (en) * | 2016-03-17 | 2016-08-03 | 宁波海天精工股份有限公司 | Stroke adjustable main shaft unclamping cylinder |
| CN206386337U (en) * | 2016-12-06 | 2017-08-08 | 安徽海拓志永智能装备股份有限公司 | A kind of forcing press is with new jack-up cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654443A (en) * | 2017-08-28 | 2018-02-02 | 无锡瑞真精机股份有限公司 | Telescopic hydraulic makes concentric mechanism by oneself |
| CN107654443B (en) * | 2017-08-28 | 2024-02-06 | 无锡瑞真精机股份有限公司 | Telescopic hydraulic self-centering mechanism |
| CN107827018A (en) * | 2017-10-31 | 2018-03-23 | 奇瑞汽车股份有限公司 | A kind of interior jacking system of press bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108869454A (en) | 2018-11-23 |
| CN108869442A (en) | 2018-11-23 |
| CN108869452A (en) | 2018-11-23 |
| CN106704304B (en) | 2018-09-18 |
| CN108869453A (en) | 2018-11-23 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20211206 |