CN107013506B - Punching mechanism - Google Patents
Punching mechanism Download PDFInfo
- Publication number
- CN107013506B CN107013506B CN201710293431.5A CN201710293431A CN107013506B CN 107013506 B CN107013506 B CN 107013506B CN 201710293431 A CN201710293431 A CN 201710293431A CN 107013506 B CN107013506 B CN 107013506B
- Authority
- CN
- China
- Prior art keywords
- control unit
- variable pump
- accumulator
- hydraulic oil
- fuel tank
- 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.)
- Active
Links
- 238000004080 punching Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 29
- 239000002828 fuel tank Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B2211/00—Circuits for servomotor systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of punching mechanisms, comprising: hydraulic cylinder；Variable pump；Fuel tank；First control unit；Accumulator is used for when first control unit is in the second position, and variable pump is connected to accumulator, and for when first control unit is in the third place, accumulator and variable pump to be truncated, and accumulator is connected to rod chamber.When first control unit is in the second position, the hydraulic oil in variable pump is through check valve respectively to rodless cavity and accumulator fliud flushing, and when first control unit is in the third place, accumulator makes closed check valve, and the hydraulic oil in accumulator is to rod chamber filling liquid.The present invention controls accumulator by first control unit and provides hydraulic oil for piston rod backhaul, and accumulator is capable of providing compared to variable pump more stably hydraulic oil, so that the backhaul of piston rod is more steady.
Description
Technical field
The present invention relates to mechanical electronic hydraulic control technology field more particularly to a kind of punching mechanism, particularly suitable control punching oil
Cylinder.
Background technique
Hydraulic control system is the control system constructed using (quiet) hydraulic control and inverting element as major control element.Liquid
Voltage-controlled system is often referred to hydraulic control valve, hydraulic control pump etc. with inverting element.Hydraulic control technology is the one of automatic control technology
A important branch.Hydraulic control system distinct characteristics, it is with the obvious advantage, play irreplaceable role.Hydraulic control technology is allusion quotation
The mechanical-electrical-hydraulic integration technology of type is the example of multi-crossed disciplines fusion development.For example, electric hydraulic control system is with dynamics
System is object, is designed as means with degeneration factor, integrates mechanical system, electrical system and hydraulic system and constructs mechanical electronic hydraulic one
The dynamical system of body.Currently, hydraulic control technology is in equipment manufacture, auto industry, space flight and aviation, weapon industry, metallurgy
Industry, shipping industry, medical engineering etc. are multi-field to be applied.
For punching press oil cylinder, it is always desirable to which in punching course, punch rod (also referred to as piston rod) is with slower speed compared with favourable opposition
Forced feed, and after the completion of punching press, punch rod is capable of the backhaul of quick and stable, and guarantees that backhaul does not generate noise.And it is existing
In technology, the backhaul action multi-pass of punch rod crosses variable pump offer, so that the backhaul of the punch rod made is unstable, noise is larger,
To influence the service life of punching press oil cylinder.
Summary of the invention
For the above-mentioned technical problems in the prior art, the embodiment provides a kind of punching mechanisms.
In order to solve the above technical problems, the embodiment of the present invention the technical solution adopted is that:
A kind of punching mechanism, comprising:
Hydraulic cylinder comprising the cylinder body with plunger shaft, is set to the work at the piston being set in the plunger shaft
Beyond the Great Wall and stretch out the cylinder body one end piston rod, the plunger shaft is divided into rod chamber and rodless cavity by the piston；
Variable pump is used to provide hydraulic oil for the hydraulic cylinder；
Fuel tank is used to provide hydraulic oil for the variable pump and for receiving hydraulic oil；
First control unit is set on the fluid pressure line between the variable pump and the hydraulic cylinder, and described
One control unit have the first position that the rodless cavity and the variable pump and the rod chamber and the fuel tank is truncated,
With being connected to the variable pump with the rodless cavity, and the second position that is connected to the rod chamber with the fuel tank and make
The variable pump is connected to the rod chamber, and the third place for being connected to the rodless cavity with the fuel tank；
Accumulator is used for when the first control unit is in the second position, the variable pump and the accumulator
Connection, and for when the first control unit is in the third place, the accumulator and the variable pump to be truncated, and described
Accumulator is connected to the rod chamber；
Second control unit is arranged on the oil return line of the hydraulic cylinder and the variable pump, when described first
When control unit is in first position, second control unit makes the hydraulic oil in the variable pump flow into the fuel tank.
Preferably, check valve, the oil inlet of the check valve are provided between the variable pump and the first control unit
Mouth is connect with the variable pump, and the oil outlet of the check valve is connect with the first control unit, in which:
When the first control unit is in the second position, the hydraulic oil in the variable pump is distinguished through the check valve
To the rodless cavity and the accumulator fliud flushing, and when the first control unit is in the third place, the accumulator makes
The closed check valve, hydraulic oil in the accumulator is to the rod chamber filling liquid.
Preferably, second control unit is two-position two-way electromagnetic directional valve, and the bi-bit bi-pass reversal valve passes through logical
Powering off has the truncation position that the variable pump and the fuel tank is truncated and leads the variable pump with what the fuel tank was connected
Logical position is powered when the first control unit is in first position so that second control unit is switched to from truncation position
Position is connected.
Preferably, the first control unit is three position four-way directional control valve.
Preferably, the both ends of the three position four-way directional control valve are provided with Electromagnetic Control mouth, and the two Electromagnetic Control mouths are used
Switch between its first position, the second position and the third place in controlling the three-position four-way valve.
Compared with prior art, the beneficial effect of punching mechanism of the invention is: the present invention passes through first control unit control
Accumulator processed provides hydraulic oil for piston rod backhaul, and accumulator is capable of providing compared to variable pump more stably hydraulic oil, to make
The backhaul for obtaining piston rod is more steady.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the punching mechanism that the embodiment of the present invention provides.
In figure:
10- hydraulic cylinder；11- cylinder body；12- piston；13- rodless cavity；14- rod chamber；15- piston rod；20- variable pump；
30- first control unit；40- accumulator；50- check valve；The second control unit of 60-；70- fuel tank.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
As shown in Figure 1, being used for stamped workpieces, the punching mechanism packet embodiment of the invention discloses a kind of punching mechanism
It includes: hydraulic cylinder 10, variable pump 20, fuel tank 70, first control unit 30, accumulator 40 and the second control unit 60.Specifically
Ground, hydraulic cylinder 10 include the cylinder body 11 with 12 chamber of piston, be set to the intracavitary piston 12 of the piston 12, be set to it is described
On piston 12 and stretch out the cylinder body 11 one end piston rod 15,12 chamber of piston is divided into rod chamber by the piston 12
14 and rodless cavity 13；Variable pump 20 is used to provide hydraulic oil for the hydraulic cylinder 10；Fuel tank 70 is used to be the variable pump 20
There is provided hydraulic oil and for receiving hydraulic oil；First control unit 30 be set to the variable pump 20 and the hydraulic cylinder 10 it
Between fluid pressure line on, the first control unit 30 has and makes the rodless cavity 13 and the variable pump 20 and the rod chamber
14 be truncated with the fuel tank 70 first position, have and be connected to the variable pump 20 with the rodless cavity 13, and described in making
The second position and be connected to the variable pump 20 with the rod chamber 14 that rod chamber 14 is connected to the fuel tank 70, and make institute
State the third place that rodless cavity 13 is connected to the fuel tank 70；Accumulator 40 is used to be in second when the first control unit 30
When position, the variable pump 20 is connected to the accumulator 40, and for being in the third place when the first control unit 30
When, the accumulator 40 is truncated with the variable pump 20, and the accumulator 40 is connected to the rod chamber 14；Second control is single
Member 60 be arranged in the hydraulic cylinder 10 on the oil return line of the variable pump 20, when the first control unit 30 is in the
When one position, second control unit 60 makes the hydraulic oil in the variable pump 20 flow into the fuel tank 70.
In a preferred embodiment of the invention, it is provided between the variable pump 20 and the first control unit 30
Check valve 50, the oil inlet of the check valve 50 are connect with the variable pump 20, the oil outlet of the check valve 50 and described the
The connection of one control unit 30, in which:
When the first control unit 30 is in the second position, the hydraulic oil in the variable pump 20 is through the check valve
50 respectively to 40 fliud flushing of the rodless cavity 13 and the accumulator, and when the first control unit 30 is in the third place,
The accumulator 40 closes the check valve 50, and the hydraulic oil in the accumulator 40 is to 14 filling liquid of rod chamber.
In a preferred embodiment of the invention, institute's second control unit 60 is two-position two-way electromagnetic directional valve,
The bi-bit bi-pass reversal valve has the truncation position that the variable pump 20 is truncated with the fuel tank 70 by power on/off and makes
The conducting position of the variable pump 20 and the fuel tank 70 conducting is powered when the first control unit 30 is in first position
So that second control unit 60 from truncation the switching-on position in position.
As a kind of selection, the first control unit 30 is three position four-way directional control valve.
As a kind of selection, the both ends of the three position four-way directional control valve are provided with Electromagnetic Control mouth, the two electromagnetism controls
Donsole switches between its first position, the second position and the third place for controlling the three-position four-way valve.
As described above, by being powered to Electromagnetic Control mouth, so that first control unit 30 is in first position, second
Set and the third place between switch over.And when needing to stamp workpiece, first control unit 30 is made to switch to the second position,
Hydraulic oil in variable pump 20 enters rodless cavity 13 by first control unit 30, to push against piston 12 to drive piston rod 15
(punch rod) stretches out hydraulic cylinder 10 with stamped workpieces, when first control unit 30 switches to first position, 13 He of rodless cavity
Rod chamber 14 is truncated, and piston rod 15 is maintained at extended position, and energization keeps the second control unit 60 truncation position switching-on
, the hydraulic oil in variable pump 20 returns to fuel tank 70, and when first control unit 30 switches to the third place, check valve 50 is stored
Can device 40 be truncated, and the hydraulic oil in accumulator 40 flows to rod chamber 14 makes 15 backhaul of piston rod.
The present invention controls accumulator 40 by first control unit 30 and provides hydraulic oil, accumulator 40 for 15 backhaul of piston rod
It is capable of providing and compares the more stably hydraulic oil of variable pump 20, so that the backhaul of piston rod 15 is more steady.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (4)
1. a kind of punching mechanism characterized by comprising
Hydraulic cylinder comprising the cylinder body with plunger shaft, is set on the piston piston being set in the plunger shaft
And the piston rod of one end of the cylinder body is stretched out, the plunger shaft is divided into rod chamber and rodless cavity by the piston；
Variable pump is used to provide hydraulic oil for the hydraulic cylinder；
Fuel tank is used to provide hydraulic oil for the variable pump and for receiving hydraulic oil；
First control unit is set on the fluid pressure line between the variable pump and the hydraulic cylinder, first control
Unit processed has the first position that the rodless cavity is truncated with the fuel tank with the variable pump and the rod chamber, has
It is connected to the variable pump with the rodless cavity, and the second position that is connected to the rod chamber with the fuel tank and makes described
Variable pump is connected to the rod chamber, and the third place for being connected to the rodless cavity with the fuel tank；
Accumulator is used for when the first control unit is in the second position, and the variable pump is connected to the accumulator,
And for when the first control unit is in the third place, the accumulator and the variable pump to be truncated, and the accumulation of energy
Device is connected to the rod chamber；
Second control unit is arranged on the variable pump oil return line between the check valve and the variable pump, when described
When first control unit is in first position, second control unit makes the hydraulic oil in the variable pump flow into the oil
Case；
Check valve, the oil inlet of the check valve and the variable are provided between the variable pump and the first control unit
Pump connection, the oil outlet of the check valve are connect with the first control unit, in which:
When the first control unit is in the second position, the hydraulic oil in the variable pump is through the check valve respectively to institute
Rodless cavity and the accumulator filling liquid are stated, and when the first control unit is in the third place, the accumulator makes institute
Closed check valve is stated, the hydraulic oil in the accumulator is to the rod chamber filling liquid.
2. punching mechanism according to claim 1, which is characterized in that second control unit is that bi-bit bi-pass electromagnetism changes
To valve, the bi-bit bi-pass reversal valve has the truncation position that the variable pump is truncated with the fuel tank by power on/off and makes
The conducting position that the variable pump is connected with the fuel tank is powered when the first control unit is in first position so that institute
The second control unit is stated from the truncation switching-on position in position.
3. punching mechanism according to claim 1, which is characterized in that the first control unit is 3-position 4-way commutation
Valve.
4. punching mechanism according to claim 3, which is characterized in that the both ends of the three position four-way directional control valve are provided with
Electromagnetic Control mouth, the two Electromagnetic Control mouths are for controlling the three-position four-way valve in its first position, the second position and the
Switch between three positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293431.5A CN107013506B (en) | 2017-04-28 | 2017-04-28 | Punching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293431.5A CN107013506B (en) | 2017-04-28 | 2017-04-28 | Punching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013506A CN107013506A (en) | 2017-08-04 |
| CN107013506B true CN107013506B (en) | 2019-08-23 |
Family
ID=59447480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293431.5A Active CN107013506B (en) | 2017-04-28 | 2017-04-28 | Punching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315144A (en) * | 2019-08-05 | 2019-10-11 | 广西百色银海铝业有限责任公司 | A kind of composite sheet seperator and aluminum steel separator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201669568U (en) * | 2010-05-19 | 2010-12-15 | 西安邮电学院 | Hydraulic energy-accumulation pressure maintaining system for fixture |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| CN202690347U (en) * | 2012-05-30 | 2013-01-23 | 三一重工股份有限公司 | Concrete pump swinging cylinder hydraulic system and concrete pumping device |
| CN103603833A (en) * | 2013-11-14 | 2014-02-26 | 何扬东 | Constant pressure oil circuit control device |
| CN203627344U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Cylinder circuit provided with energy accumulator |
| CN203627345U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Pressure maintaining circuit provided with energy accumulator |
| CN104314894A (en) * | 2014-09-18 | 2015-01-28 | 芜湖高昌液压机电技术有限公司 | Pressure relay type unloading loop for scissor lift |
| CN106378915A (en) * | 2016-10-31 | 2017-02-08 | 成都源云机械有限公司 | Hydraulic control system of high-speed injection molding machine |
-
2017
- 2017-04-28 CN CN201710293431.5A patent/CN107013506B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201669568U (en) * | 2010-05-19 | 2010-12-15 | 西安邮电学院 | Hydraulic energy-accumulation pressure maintaining system for fixture |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| CN202690347U (en) * | 2012-05-30 | 2013-01-23 | 三一重工股份有限公司 | Concrete pump swinging cylinder hydraulic system and concrete pumping device |
| CN203627344U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Cylinder circuit provided with energy accumulator |
| CN203627345U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Pressure maintaining circuit provided with energy accumulator |
| CN103603833A (en) * | 2013-11-14 | 2014-02-26 | 何扬东 | Constant pressure oil circuit control device |
| CN104314894A (en) * | 2014-09-18 | 2015-01-28 | 芜湖高昌液压机电技术有限公司 | Pressure relay type unloading loop for scissor lift |
| CN106378915A (en) * | 2016-10-31 | 2017-02-08 | 成都源云机械有限公司 | Hydraulic control system of high-speed injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013506A (en) | 2017-08-04 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190718 Address after: 538199 Room 101, No. 2 Courtyard, No. 3 Lane, Qixing Road, Dongxing Town, Fangchenggang City, Guangxi Zhuang Autonomous Region Applicant after: Chen Yuewen Address before: 538001 No. 37 Sichuan Road, Fangchenggang Port District, Guangxi Zhuang Autonomous Region (4th Floor, Office Building of Municipal Water Conservancy Bureau) Applicant before: Fangchenggang Haihe dam management station |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: 221137 original No.2 Chemical Plant, Mazhuang village, qingshanquan Town, Jiawang District, Xuzhou City, Jiangsu Province Patentee after: XUZHOU SANHE MECHANICAL PARTS Co.,Ltd. Address before: 538199 Room 101, No. 2 Courtyard, No. 3 Lane, Qixing Road, Dongxing Town, Fangchenggang City, Guangxi Zhuang Autonomous Region Patentee before: Chen Yuewen |
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| TR01 | Transfer of patent right |