CN103157689A - Accurate positioning hydraulic device - Google Patents
Accurate positioning hydraulic device Download PDFInfo
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- CN103157689A CN103157689A CN2011104226713A CN201110422671A CN103157689A CN 103157689 A CN103157689 A CN 103157689A CN 2011104226713 A CN2011104226713 A CN 2011104226713A CN 201110422671 A CN201110422671 A CN 201110422671A CN 103157689 A CN103157689 A CN 103157689A
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Abstract
The invention discloses an accurate positioning hydraulic device comprising an oil path block, a quantitative hydraulic cylinder and a positioning hydraulic cylinder, wherein a pressure oil path, a control oil path and an oil return path are arranged in the oil path block; the rod chamber and rodless chamber of the quantitative hydraulic cylinder are connected to the oil path block through pipelines, respectively, and the oil path of the rod chamber is communicated with the control oil path of the oil path block while the oil path of the rodless chamber is communicated with the oil return path of the oil path block; the rodless chamber of the quantitative hydraulic cylinder is connected to the oil path block through a pipeline and the oil path thereof is communicated with the control oil path and the oil return path of the oil path block, respectively; a plurality of hydraulic elements are mounted on the oil path block; and the plurality of hydraulic elements include a first electromagnetic directional valve, a second electromagnetic directional valve and a third electromagnetic directional valve. The accurate positioning hydraulic device is capable of realizing accurate positioning of the positioning hydraulic cylinder only by using common electromagnetic directional valves; the related hydraulic elements and electronic control elements are standardized and universalized; the purchase cost is low; and common hydraulic filter precision is capable of meeting the requirements.
Description
Technical field
The invention belongs to technical field of hydraulic, be specifically related to a kind of hydraulic means that is mainly used in the pull bar of accurate locating vertical type metal extrusion molding machine.
Background technology
In existing vertical inner chamber metal extrusion molding machine (as the vertical inner chamber metal extrusion molding machine of Kodak company), after its pull bar need accurately rise to a certain height, just can carry out the fixing action of obvolvent of pull bar.Traditional hydraulic control solution is to adopt the position servo hydraulic system, but its relevant Hydraulic Elements price is high, and is strict to the filtering accuracy of hydraulic oil, also needs to be equipped with corresponding accurate complicated electronic control system.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art part, a kind of simple in structure, pinpoint hydraulic means of the low also energy of manufacturing cost is provided.
For achieving the above object, the present invention adopts following technical scheme:
Pinpoint hydraulic means comprises an oil path block, a certain amount of hydraulic cylinder and a location hydraulic cylinder, is provided with the pressure oil oil circuit in described oil path block, controls oil circuit and oil return circuit; The rod chamber of described quantitative hydraulic cylinder is connected by pipeline with rodless cavity and is connected with oil path block, and the oil circuit of rod chamber is communicated with the control oil oil circuit of oil path block, and the oil circuit of rodless cavity is communicated with the oil return circuit of oil path block; The rodless cavity of described positioning hydraulic cylinders is connected with oil path block by pipeline and its oil circuit is communicated with control oil oil circuit and the oil return circuit of oil path block respectively; Some Hydraulic Elements are installed on described oil path block, described some Hydraulic Elements comprise: one first solenoid directional control valve, in the pressure oil oil circuit of its oil-in series connection access oil path block, two oil-out is communicated with the rod chamber of quantitative hydraulic cylinder and the oil circuit of rodless cavity respectively; One second solenoid directional control valve is in the control oil oil circuit of its oil circuit series connection access oil path block; With one the 3rd solenoid directional control valve, in the oil return circuit of its oil circuit series connection access oil path block.
Further, described Hydraulic Elements also comprise a choke valve, the port of export of its oil circuit series connection Access Control oil oil circuit
Further, described Hydraulic Elements also comprise one first check valve, in its oil circuit series connection Access Control oil oil circuit.
Further, described Hydraulic Elements also comprise one second check valve, in its oil circuit series connection access oil return circuit.
As preferably, described quantitative hydraulic cylinder is stroke adjustable quantitative hydraulic cylinder.
The present invention is by adopting said structure, the accurate location that only needs common solenoid directional control valve can realize positioning hydraulic cylinders, relevant Hydraulic Elements and electronic control component standardization, generalization, purchase cost is lower, common hydraulic filtering precision can meet the demands, and is applicable to the accurate location of vertical inner chamber metal extrusion molding machine pull bar.
Description of drawings
Fig. 1 is structural representation of the present invention.
In figure:
The 1-oil path block; 11-the first solenoid directional control valve; 12-the second solenoid directional control valve; 13-the 3rd solenoid directional control valve; The 14-choke valve; 15-the first check valve; 16-the second check valve; 2-stroke adjustable quantitative hydraulic cylinder; The rod chamber of 21-quantitative hydraulic cylinder; The rodless cavity of 22-quantitative hydraulic cylinder; The 3-positioning hydraulic cylinders; The rodless cavity of 31-positioning hydraulic cylinders; The piston rod of 32-positioning hydraulic cylinders; The 4-pipeline.
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail.
The specific embodiment
As shown in Figure 1, pinpoint hydraulic means of the present invention comprises oil path block 1, stroke adjustable quantitative hydraulic cylinder 2 and positioning hydraulic cylinders 3.Be provided with the pressure oil oil circuit in oil path block 1, control oil circuit and oil return circuit.The rod chamber of stroke adjustable quantitative hydraulic cylinder 2 and rodless cavity are connected with oil path block 1 by pipeline 4 respectively, and the oil circuit of its rod chamber 21 is communicated with the oily oil circuit of the control of oil path block 1, and the oil circuit of rodless cavity 22 is communicated with the oil return circuit of oil path block 1.The rodless cavity 31 of positioning hydraulic cylinders 3 is connected with oil path block 1 by pipeline 4 and its oil circuit is communicated with control oil oil circuit and the oil return circuit of oil path block 1 respectively.The first solenoid directional control valve 11, the second solenoid directional control valve 12, the 3rd solenoid directional control valve 13, choke valve 14, the first check valve 15 and the second check valve 16 are installed on oil path block.
In the pressure oil oil circuit of the first solenoid directional control valve 11 oil-in series connection access oil path blocks 1, two oil-out is communicated with the rod chamber 21 of stroke adjustable quantitative hydraulic cylinder 2 and the oil circuit of rodless cavity 22 respectively, in order to control stretching out and retract action of quantitative hydraulic cylinder.
In the control oil oil circuit of the oil circuit of the second solenoid directional control valve 12 series connection access oil path block 1, in order to in the quantitative volume oil input control oil oil circuit in quantitative hydraulic cylinder rod chamber.
In the oil return circuit of the oil circuit of the 3rd solenoid directional control valve 13 series connection access oil path block 1, in order to the down maneuver of the piston rod of controlling positioning hydraulic cylinders.
The control oil oil circuit port of export of the oil circuit series connection access oil path block 1 of choke valve 14 in order to regulate the movement velocity of positioning hydraulic cylinders, is realized the stepless time adjustment function.
In the control oil oil circuit of the oil circuit series connection access oil path block 1 of the first check valve 15, control oil circuit in order to sealing, prevent that the pressure oil of hydraulic cylinder from leaking the position deviation that causes.
In the oil return circuit of the oil circuit series connection access oil path block 1 of the second check valve 16, in order to seal oil return circuit, prevent that the pressure oil of hydraulic cylinder from leaking the position deviation that causes.
The present invention is used for the pull bar (being the piston rod 32 of positioning hydraulic cylinders) of locating vertical type metal extrusion molding machine, and its course of work is as follows:
1, the warming-up exercise of quantitative volume oil: start the first reversing solenoid valve its oil-out is communicated with the rod chamber of quantitative hydraulic cylinder, hydraulic oil in the pressure oil oil circuit of oil path block enters the rod chamber of quantitative hydraulic cylinder through the first reversing solenoid valve, hydraulic oil in the rodless cavity of quantitative hydraulic cylinder passes back in the oil return circuit of oil path block, the piston rod of quantitative hydraulic cylinder is retracted to desired location, and the interior hydraulic oil of quantitative hydraulic cylinder rod chamber this moment is quantitative volume oil.
2, the accurate position fixing process of pull bar: start the first reversing solenoid valve its oil-out is communicated with the rodless cavity of quantitative hydraulic cylinder, starting the second reversal valve makes the oil circuit of quantitative hydraulic cylinder rod chamber be communicated with the control oil oil circuit of oil path block, hydraulic oil in the pressure oil oil circuit of oil path block stretches out through the piston rod that the first reversal valve enters the rodless cavity driving quantitative hydraulic cylinder of quantitative hydraulic cylinder at this moment, the quantitative volume oil of quantitative hydraulic cylinder rod chamber enters through the second reversal valve and controls in oil circuit, and through the first check valve, choke valve and pipeline enter the rodless cavity of positional cylinder, its piston rod of the piston actuated of positional cylinder (pull bar) accurately rises to the height and position of setting.Regulate the movement velocity of choke valve adjusting piston bar (pull bar), realize stepless time adjustment.
3, the down maneuver of pull bar: start the 3rd reversing solenoid valve, hydraulic oil in the rodless cavity of positional cylinder enters oil path block by the road, and enter in the oil return circuit of oil path block through the 3rd reversing solenoid valve, piston retraction its piston rod of drive this moment (pull bar) is made down maneuver.
Claims (5)
1. pinpoint hydraulic means, is characterized in that, comprises an oil path block, a certain amount of hydraulic cylinder and a location hydraulic cylinder, is provided with the pressure oil oil circuit in described oil path block, controls oil circuit and oil return circuit; The rod chamber of described quantitative hydraulic cylinder is connected by pipeline with rodless cavity and is connected with oil path block, and the oil circuit of rod chamber is communicated with the control oil oil circuit of oil path block, and the oil circuit of rodless cavity is communicated with the oil return circuit of oil path block; The rodless cavity of described positioning hydraulic cylinders is connected with oil path block by pipeline and its oil circuit is communicated with control oil oil circuit and the oil return circuit of oil path block respectively; Some Hydraulic Elements are installed on described oil path block, and described some Hydraulic Elements comprise:
One first solenoid directional control valve, in the pressure oil oil circuit of its oil-in series connection access oil path block, two oil-out is communicated with the rod chamber of quantitative hydraulic cylinder and the oil circuit of rodless cavity respectively;
One second solenoid directional control valve is in the control oil oil circuit of its oil circuit series connection access oil path block; With
One the 3rd solenoid directional control valve is in the oil return circuit of its oil circuit series connection access oil path block.
2. hydraulic means according to claim 1, is characterized in that, described Hydraulic Elements also comprise a choke valve, the port of export of its oil circuit series connection Access Control oil oil circuit.
3. hydraulic means according to claim 1, is characterized in that, described Hydraulic Elements also comprise one first check valve, in its oil circuit series connection Access Control oil oil circuit.
4. hydraulic means according to claim 1, is characterized in that, described Hydraulic Elements also comprise one second check valve, in its oil circuit series connection access oil return circuit.
According to claim 1 to 4 arbitrary described hydraulic means, it is characterized in that, described quantitative hydraulic cylinder is stroke adjustable quantitative hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110422671.3A CN103157689B (en) | 2011-12-15 | 2011-12-15 | Pinpoint hydraulic means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110422671.3A CN103157689B (en) | 2011-12-15 | 2011-12-15 | Pinpoint hydraulic means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157689A true CN103157689A (en) | 2013-06-19 |
| CN103157689B CN103157689B (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110422671.3A Active CN103157689B (en) | 2011-12-15 | 2011-12-15 | Pinpoint hydraulic means |
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| CN (1) | CN103157689B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342114A (en) * | 1989-07-07 | 1991-02-22 | Ube Ind Ltd | Method for controlling extruding speed |
| JPH081233A (en) * | 1994-06-20 | 1996-01-09 | Kobe Steel Ltd | Speed controller for extruding press and method therefor |
| JP4416799B2 (en) * | 2004-01-15 | 2010-02-17 | エス エム エス オイムコ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for controlling the position of a drilling mandrel in an extruder for making a hollow profile |
| CN101712207A (en) * | 2009-09-08 | 2010-05-26 | 广东工业大学 | High performance and energy-saving double-acting hydrostatic press driven by servo motor |
| CN201832982U (en) * | 2010-10-22 | 2011-05-18 | 广东科达机电股份有限公司 | Mode locking and adjusting mechanism for two-plate type extrusion casting machine |
| CN202387766U (en) * | 2011-12-15 | 2012-08-22 | 广东科达机电股份有限公司 | Accurate positioning hydraulic device |
-
2011
- 2011-12-15 CN CN201110422671.3A patent/CN103157689B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342114A (en) * | 1989-07-07 | 1991-02-22 | Ube Ind Ltd | Method for controlling extruding speed |
| JPH081233A (en) * | 1994-06-20 | 1996-01-09 | Kobe Steel Ltd | Speed controller for extruding press and method therefor |
| JP4416799B2 (en) * | 2004-01-15 | 2010-02-17 | エス エム エス オイムコ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for controlling the position of a drilling mandrel in an extruder for making a hollow profile |
| CN101712207A (en) * | 2009-09-08 | 2010-05-26 | 广东工业大学 | High performance and energy-saving double-acting hydrostatic press driven by servo motor |
| CN201832982U (en) * | 2010-10-22 | 2011-05-18 | 广东科达机电股份有限公司 | Mode locking and adjusting mechanism for two-plate type extrusion casting machine |
| CN202387766U (en) * | 2011-12-15 | 2012-08-22 | 广东科达机电股份有限公司 | Accurate positioning hydraulic device |
Non-Patent Citations (1)
| Title |
|---|
| 黎勉，罗勇武，陈幼曾: "用定量油缸实现机械手的多点定位及定位精度分析", 《机床与液压》, no. 01, 10 February 1995 (1995-02-10), pages 29 - 35 * |
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| CN103157689B (en) | 2016-08-03 |
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Address after: 528313 Guangdong City, Shunde province Chencun Town, industrial park, long Ring Road West Town, No. 1 Applicant after: KEDA CLEAN ENERGY CO., LTD. Address before: 528313 Guangdong City, Shunde province Chencun Town, industrial park, long Ring Road West Town, No. 1 Applicant before: Guangdong Keda Electromechanical Co., Ltd. |
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