CN201186505Y - Double column high precision hydraulic press with stroke control and detection device - Google Patents
Double column high precision hydraulic press with stroke control and detection device Download PDFInfo
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- CN201186505Y CN201186505Y CNU200820074282XU CN200820074282U CN201186505Y CN 201186505 Y CN201186505 Y CN 201186505Y CN U200820074282X U CNU200820074282X U CN U200820074282XU CN 200820074282 U CN200820074282 U CN 200820074282U CN 201186505 Y CN201186505 Y CN 201186505Y
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Abstract
The utility model relates to a double-column high precision hydrostatic press with a pressure and stroke controlling and detecting device, which comprises a whole frame machine body which is composed of an upper crossbeam, a workbench and two upright posts which are fixed through a retaining member, wherein a master cylinder is installed in the upper crossbeam, a pressure sensor is installed on the end portion of a piston of the master cylinder, the pressure sensor is connected with a slide block, a stroke detecting device is arranged on one side of the machine body, an upper oil cavity and a lower oil cavity of the master cylinder are respectively connected with a pressure oil outlet of a proportion hydraulic diverter valve through a pipeline, an oil inlet of the proportion hydraulic diverter valve is connected with the pressure oil outlet of a hydraulic oil pump which is installed on a hydraulic power box, and a proportional pressure valve is installed on the outlet of the hydraulic oil pump. The utility model has the advantages that the adjustment is convenient, the adjusting time is saved, the pressure precision of the press is improved, simultaneously, precise positioning of the slide block is improved, and high precision on-line detection of the pressed product height is realized, and furthermore the press also can realize the program control of the slide block speed in work.
Description
Technical field
The utility model belongs to the hydraulic machinery technical field, particularly relates to a kind of twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear with high-precision pressure detection, displacement detecting and control.
Background technology
Present known drug pressing machine is generally man power weight counterweigh formula drug pressing machine or uses the hydraulic pressure drug pressing machine of common overflow valve pressure regulation.Man power weight counterweigh formula drug pressing machine is firmly to rotate handwheel by operating personnel, conversion by the connecting rod slider mechanical device makes drug pressing machine pressure head output pressure, finish pressing work, the size of pressure is by the Weight control of counterweigh weight, because its power of this kind drug pressing machine is manpower, the pressure size is by the Weight control of counterweigh weight, and have following shortcoming: 1, labour intensity is big; 2, the pressure size is also relevant with the speed of handwheel rotation except that the Weight control that is subjected to the counterweigh weight, and when the handwheel velocity of rotation was too fast, the impulsive force of its pressure head made the drug pressing machine pressure error bigger, can not satisfy the product density high-precision requirement; 3, only be applicable to the isodensity compacting of product, can not satisfy the compacting of take the altitude product.And the hydraulic pressure drug pressing machine of common overflow valve pressure regulation is to export by the pressure oil that changes reversal valve to realize that the drug pressing machine pressure head moves up and down, and finishes its compacting work.In the outlet of oil pump the pressure of overflow valve with the regulator solution pressing system is housed, the distance caging device that is made of collision block and mechanical type or photo-electric travel switch is housed between drug pressing machine slide block and fuselage, labour intensity is low though it has, pressure is regulated fairly simple, can realize the control of drug pressing machine pressing stroke, but still exist following deficiency: 1, the setting of pressure adopts the method for pressure testing to regulate overflow valve, repeated multiple times adjusting of pressure need and precision are lower, and the drug pressing machine pressure precision is generally 5%～10%.2, along with the press working time increases, the viscosity of oily temperature rise and oil changes, and the press system pressure oscillation is bigger, can not satisfy the product density high-precision requirement equally.Though 3 are equipped with travel control device, because structural reason own, the slide block positioning accuracy is lower, generally about 0.1～1mm, therefore can only satisfy the lower product compacting of height dimension requirement, it can not satisfy the product compacting of height dimension requirement precision, and can not detect the displacement of slide block.
Summary of the invention
The utility model provides a kind of twin columns post high-precision hydraulic machine that has pressure and Stroke Control and checkout gear with high-precision pressure detection, displacement detecting and control thereof for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear, comprise fuselage, master cylinder, the hydraulic power box that is connected with master cylinder by pipeline and be positioned at the electric control box that the fuselage opposite side connects by lead, it is characterized in that: described fuselage is by entablature, workbench and two columns are by the fixing formation of locking member general frame structure, master cylinder is installed in the entablature, the master cylinder piston end is fixed with pressure-detecting device, pressure-detecting device is connected in aggregates with slide block, fuselage one side is provided with device for detecting distance of travel, the master cylinder upper oil cavitie, lower oil cavitie connects the pressure oil outlet of ratio hydraulicdirectional control valve respectively by pipeline, the oil-in of ratio hydraulicdirectional control valve is connected with hydraulic oil pump pressure oil outlet on being installed in hydraulic power box, and hydraulic oil pump exports proportional pressure valve is housed.
The utility model can also adopt following technical scheme:
Described pressure-detecting device is to be made of the pressure sensor that is installed in the master cylinder piston end by adpting flange.
Described device for detecting distance of travel comprises: by bearing and the support that entablature is connected with workbench, by fixed mount displacement transducer is installed on the support, is installed in measurement of inductance head on the slide block side by Connection Block.
Working face is fixed with pressure sensor by adpting flange under the described slide block, and this pressure sensor lower end connects compacting tool set.
Advantage and the good effect that the utlity model has are: 1, easy to adjust, when adopting the ratio pressure valve system to regulate press system pressure, can directly regulate by electrical system press pressure, and can realize the pinpoint accuracy adjustment of press pressure, the inexactness of not only having avoided traditional press manually to adjust, and save the adjustment time.2, by cooperating checkout gears such as high accuracy displacement sensor and pressure sensor, constitute hydraulic press pressure control closed loop, the pressure precision of press can realize that pressure changes with the function of displacement or time in 0.5%.3, passing ratio servo valve and displacement transducer closed-loop control, press slide can accurately be located, and positional precision can reach in the 0.01mm, can realize suppressing simultaneously the online detection of high accuracy of powder column height.4, pressure is regulated flexibly, the various parameters that press is set can store and call, as parameters such as pressure, displacement, speed and pressurizes, for the formulation and the adjustment of pressing process provides the data support.5, this press can be realized the programme-control of ram speed at work.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the utility model master cylinder and pressure sensor connection diagram;
Fig. 4 is the utility model entablature, slide block, workbench and device for detecting distance of travel connection diagram;
Fig. 5 is the utility model hydraulic schematic diagram;
Fig. 6 is the another kind of syndeton schematic diagram of the utility model slide block and pressure sensor.
Among the figure: 1, master cylinder; 2, locknut; 3, locknut; 4, entablature; 5, pressure sensor; 6, slide block; 7, displacement transducer; 8, column; 9, electric control box; 10, workbench; 11, locknut; 12, hydraulic power box; 13, pipe joint; 14, pipe joint; 15, bearing; 16, screw; 17, support; 18, Connection Block; 19, measurement of inductance head; 20, fixed mount; 21, screw; 22, bearing; 23, ratio hydraulicdirectional control valve; 24, proportional pressure valve; 25, hydraulic oil pump; 26, motor; 27, adpting flange; 28, mould.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 5, the twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear, the hydraulic power box 12 that comprises fuselage, master cylinder 1, is connected with master cylinder by pipeline and be positioned at the electric control box 9 that the fuselage opposite side connects by lead, fuselage is fixing with entablature 4 by locknut 3 by two columns, 8 tops, the bottom is by locknut 11 and the workbench 10 fixing general frame structures that constitute, entablature moves up and down for guiding by column 8, and transmit the strength that produces in the master cylinder 1 simultaneously, and then product is carried out press process.By locknut 2 master cylinder 1 is installed in the entablature, master cylinder 1 pistons end is fixed with pressure-detecting device, pressure-detecting device is to be made of the pressure sensor 5 that is installed in the master cylinder piston end by adpting flange, pressure sensor 5 lower ends are connected in aggregates by screw with slide block 6, fuselage one side is provided with device for detecting distance of travel, described device for detecting distance of travel comprises: by bearing 15,22 and screw 16,21 supports 17 that are connected with workbench 10 with entablature 4, by fixed mount 20 displacement transducer 7 is installed on the support, measurement of inductance head 19 is installed on the slide block side by Connection Block 18.Master cylinder upper oil cavitie, lower oil cavitie are by the pressure oil outlet of pipe joint 13,14 and pipeline connection ratio hydraulicdirectional control valve 23 respectively, the oil-in of ratio hydraulicdirectional control valve 23 is connected with hydraulic oil pump 25 pressure oils outlet on being installed in hydraulic power box 12, and hydraulic oil pump 25 exports to be equipped with simultaneously and is used for regulator solution pressing system pressure proportional pressure valve 24.Hydraulic oil pump 25 is driven by motor 26, exports by the pressure oil that changes proportional reversing valve 23 and realizes moving up and down of slider of hydraulic press 4, finishes the pressing work of hydraulic press.
The hydraulic system of hydraulic press has mainly adopted electro-hydraulic proportional control system, see also Fig. 5 press hydraulic schematic diagram, in the outlet of hydraulic oil pump 25 pressure that proportional pressure valve 24 comes the regulator solution pressing system is housed, the pressure-detecting device that the pressure sensor 5 that installs in conjunction with hydraulic press master cylinder 1 pistons end and slide block 6 constitutes, and the stroke monitoring device between slide block 6 and the fuselage, the high accuracy of finishing hydraulic press drives.When adopting proportional pressure valve regulator solution press system pressure, can directly regulate, the pressure of hydraulic press system be controlled by PLC Programmable Logic Controller or PC program by electrical system to hydraulic press pressure.
The utility model can also adopt following technical scheme: as shown in Figure 6,6 times working faces of described slide block are fixed with pressure sensor 5 by adpting flange 27, and this pressure sensor lower end connects compacting tool set 28.
Claims (4)
1. twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear, comprise fuselage, master cylinder, the hydraulic power box that is connected with master cylinder by pipeline and be positioned at the electric control box that the fuselage opposite side connects by lead, it is characterized in that: described fuselage is by entablature, workbench and two columns are by the fixing formation of locking member general frame structure, master cylinder is installed in the entablature, the master cylinder piston end is fixed with pressure-detecting device, pressure-detecting device is connected in aggregates with slide block, fuselage one side is provided with device for detecting distance of travel, the master cylinder upper oil cavitie, lower oil cavitie connects the pressure oil outlet of ratio hydraulicdirectional control valve respectively by pipeline, the oil-in of ratio hydraulicdirectional control valve is connected with hydraulic oil pump pressure oil outlet on being installed in hydraulic power box, and hydraulic oil pump exports proportional pressure valve is housed.
2. the twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear according to claim 1 is characterized in that: described pressure-detecting device is to be made of the pressure sensor that is installed in the master cylinder piston end by adpting flange.
3. the twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear according to claim 1, it is characterized in that: described device for detecting distance of travel comprises: the support that is connected with workbench by bearing and entablature, by fixed mount displacement transducer is installed on the support, is installed in measurement of inductance head on the slide block side by Connection Block.
4. the twin columns high-precision hydraulic machine that has pressure and Stroke Control and checkout gear according to claim 1, it is characterized in that: working face is fixed with pressure sensor by adpting flange under the described slide block, and this pressure sensor lower end connects compacting tool set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820074282XU CN201186505Y (en) | 2008-04-02 | 2008-04-02 | Double column high precision hydraulic press with stroke control and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820074282XU CN201186505Y (en) | 2008-04-02 | 2008-04-02 | Double column high precision hydraulic press with stroke control and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201186505Y true CN201186505Y (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820074282XU Expired - Fee Related CN201186505Y (en) | 2008-04-02 | 2008-04-02 | Double column high precision hydraulic press with stroke control and detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201186505Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303086A (en) * | 2011-09-20 | 2012-01-04 | 天津市天锻压力机有限公司 | Repeated locating control method for slide block of high-precision forging hydraulic machine |
| CN102873908A (en) * | 2012-09-12 | 2013-01-16 | 信华精机有限公司 | Pressure control system and method for pneumatic press |
| CN102941682A (en) * | 2012-11-16 | 2013-02-27 | 无锡阳工机械制造有限公司 | Method for realizing transmission of hydraulic machine by pump and accumulator |
| CN103406391A (en) * | 2013-06-28 | 2013-11-27 | 雄华机械(苏州)有限公司 | Stamping stroke measuring mechanism used on stamping machine |
| CN110239073A (en) * | 2019-07-19 | 2019-09-17 | 成都斯特睿思科技有限公司 | The sterile tube sealing machine of automatic flat |
-
2008
- 2008-04-02 CN CNU200820074282XU patent/CN201186505Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303086A (en) * | 2011-09-20 | 2012-01-04 | 天津市天锻压力机有限公司 | Repeated locating control method for slide block of high-precision forging hydraulic machine |
| CN102873908A (en) * | 2012-09-12 | 2013-01-16 | 信华精机有限公司 | Pressure control system and method for pneumatic press |
| CN102941682A (en) * | 2012-11-16 | 2013-02-27 | 无锡阳工机械制造有限公司 | Method for realizing transmission of hydraulic machine by pump and accumulator |
| CN103406391A (en) * | 2013-06-28 | 2013-11-27 | 雄华机械(苏州)有限公司 | Stamping stroke measuring mechanism used on stamping machine |
| CN110239073A (en) * | 2019-07-19 | 2019-09-17 | 成都斯特睿思科技有限公司 | The sterile tube sealing machine of automatic flat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20160402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |