CN102328455A - Multi-group tonnage classification control system of hydraulic press - Google Patents
Multi-group tonnage classification control system of hydraulic press Download PDFInfo
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- CN102328455A CN102328455A CN201110313455A CN201110313455A CN102328455A CN 102328455 A CN102328455 A CN 102328455A CN 201110313455 A CN201110313455 A CN 201110313455A CN 201110313455 A CN201110313455 A CN 201110313455A CN 102328455 A CN102328455 A CN 102328455A
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Abstract
The invention belongs to the technical field of a hydraulic press, and relates to a multi-group tonnage classification control system of a hydraulic press. The system comprises multiple classification tonnage groups, an oil tank and a connection oil pipe; and a proportional overflow valve is also arranged between the oil tank and the classification tonnage groups, wherein one classification tonnage group is directly connected to the proportional overflow valve through the connection oil pipe, and an electromagnetic valve is also arranged between the other classification tonnage groups and the proportional overflow valve. The multi-group tonnage classification control system of the hydraulic press, provided by the invention, can randomly select different tonnage combinations for work according to different lengths and processes of the processed workpieces, greatly lowers the processing cost, saves financial and material resources to some degree, and realizes compression moulding of complicated workpieces easily.
Description
Technical field
The invention belongs to the hydraulic press technical field, particularly relate to a kind of hydraulic press and organize the hydraulic press of tonnage hierarchical composition work more and organize the tonnage multi-level control system more.
Background technology
At present, the hydraulic press that is used for automobile industry has various ways according to the technological requirement of compacting.Automobile chassis is supporting, installation automobile engine and each parts thereof, assembly, forms the moulded of automobile, and accepts the power of engine, makes automobile produce motion, guarantees the important automobile component of cruising.The automobile longitudinal girder hydraulic press can be realized the function such as stretching, bending, shaping to the U-shaped longeron.The automobile longitudinal girder of this press compacting is through about thick 8mm, and is wide to 400mm, grows to that 12 meters sheet materials after the punching are suppressed, the last shaping of stretch bending obtains.This just requires the tonnage grading power of hydraulic press to satisfy the long drawing process needs of 12m; Select whole slide block, can reduce the intensity of sill greatly, increase the device fabrication cost; Particularity according to technology; Need the work of the many groups of design tonnage hierarchical composition, and can be different, select not tonnage combination participation work on the same group arbitrarily according to the length of processing work.Existing control device can not satisfy hydraulic press reality of work demand.
Summary of the invention
The present invention organizes the tonnage multi-level control system for the hydraulic presses that solve the technical problem that exists in the known technology and provide a kind of and be applicable to longeron sheet material drawing processes such as large-tonnage, long table face automobile, have the work of many group tonnage classification combination in any more.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: hydraulic press is organized the tonnage multi-level control system more; Comprise several classification tonnage group, fuel tank and be connected oil pipe; Between fuel tank and classification tonnage group, also be provided with proportional pressure control valve; One of them classification tonnage group directly is connected on the said proportional pressure control valve through said connection oil pipe, also is provided with magnetic valve between all the other classification tonnage groups and the said proportional pressure control valve.
The present invention can also adopt following technical scheme:
Said magnetic valve is a high-pressure ball valve.
Also be provided with inserted valve between said magnetic valve and the classification tonnage group.
Said several classification tonnage group constitutes a plurality of branches of said proportional pressure control valve.
Also be connected with the C type solenoid directional control valve that is used to control this classification tonnage group pressure release backhaul on described each classification tonnage group, the outlet of all C type solenoid directional control valves converges on the same oil pipe, and this oil pipe is connected in the fuel tank.
Also be provided with HA type solenoid directional control valve between the convergent point of said C type solenoid directional control valve and the said fuel tank.
Also be provided with prefill valve between the outlet of described each classification tonnage group and the said C type solenoid directional control valve.
Also be provided with pressure sensor on the said connection oil pipe.
Also be provided with Pressure gauge on the said connection oil pipe.
Advantage and good effect that the present invention has are: owing to adopted above-mentioned technical scheme; Can be according to processing work length and technology different; Select different tonnage combination participation work arbitrarily; Greatly reduce processing cost, saved certain financial resource and material resource, be easy to realize simultaneously the compression moulding of complex part again.
Description of drawings
Fig. 1 is a structure principle chart of the present invention.
Among the figure: 1, proportional pressure control valve; 2, connect oil pipe; 3, pressure sensor; 4, Pressure gauge; 5, high-pressure ball valve; 6, high-pressure ball valve; 7, HA type solenoid directional control valve; 8, C type solenoid directional control valve; 9, C type solenoid directional control valve; 10, C type solenoid directional control valve; 11, the first classification tonnage group; 12, the second classification tonnage group; 13, the 3rd classification tonnage group.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
The hydraulic press with three classification tonnage groups of having given an example among Fig. 1 is organized the tonnage multi-level control system more; Comprise three component level tonnage groups; Promptly the first classification tonnage group, 11, the second classification tonnage groups 12 and the 3rd classification tonnage group 13 also comprise fuel tank and are connected oil pipe 2; Between fuel tank and classification tonnage group, be provided with proportional pressure control valve 1; Promptly three classification tonnage groups constitute a plurality of branches of said proportional pressure control valve 1, and one of them classification tonnage group directly is connected on this proportional pressure control valve 1 through connecting oil pipe 2, also is provided with magnetic valve between all the other classification tonnage groups and this proportional pressure control valve 1.In the present embodiment; The first classification tonnage group 11 has been directly connected on the proportional pressure control valve 1; Be provided with high-pressure ball valve 5 between the second classification tonnage group 12 and the proportional pressure control valve 1, in like manner, be provided with high-pressure ball valve 6 between the 3rd classification tonnage group 13 and the proportional pressure control valve 1; Also be provided with inserted valve between said high-pressure ball valve (5,6) and the corresponding classification tonnage group.Also be connected with the C type solenoid directional control valve (8 that is used to control this classification tonnage group pressure release backhaul on each classification tonnage group; 9; 10), all C type solenoid directional control valves (8,9; 10) outlet converges on the same oil pipe through prefill valve, and the other end of this oil pipe is connected on the fuel tank through HA type solenoid directional control valve 7.For the ease of the variation of pressure in the surveillance, also be provided with the Pressure gauge 4 that is used for intuitively showing force value on the oil pipe 2 and be used for this force value is shown to the pressure sensor 3 on the screen connecting.
The course of work of this instance: during proportional pressure control valve 1 control work main oil pump come oil pressure, can read force value according to Pressure gauge 4, or force value is delivered on the display screen through pressure sensor 3.All must not when electricity when high-pressure ball valve (5,6), connect oil pipe 2 and be communicated with the first classification tonnage group 11, fluid gets into first group oil cylinder, so the first classification tonnage group 11 begins to carry out technological action; Switching-over after high-pressure ball valve 5 energisings; Fluid can get into the second classification tonnage group 12 through oil pipe; With commutating high-pressure ball valve 6 energising backs; Fluid can get into the 3rd classification tonnage group 13 through oil pipe, so just makes each classification tonnage group realize independent or combined type work according to the length and the technology characteristics of workpiece.In this process, 7 idle loops all the time of HA type solenoid directional control valve, when each classification tonnage group began the pressure release backhaul, C type solenoid directional control valve (8,9,10) got electric, and fluid gets in the prefill valve separately through pipeline, and prefill valve is opened, and has realized a complete action.
More than one embodiment of the present of invention are specified, but said content is merely preferred embodiment of the present invention, can not be considered to be used to limit practical range of the present invention.All equalizations of doing according to application range of the present invention change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (9)
1. a hydraulic press is organized the tonnage multi-level control system more; Comprise several classification tonnage group, fuel tank and be connected oil pipe; Between fuel tank and classification tonnage group, also be provided with proportional pressure control valve; It is characterized in that: one of them classification tonnage group directly is connected on the said proportional pressure control valve through said connection oil pipe, also is provided with magnetic valve between all the other classification tonnage groups and the said proportional pressure control valve.
2. organize the tonnage multi-level control system according to the described hydraulic press of claim 1 more, it is characterized in that: said magnetic valve is a high-pressure ball valve.
3. organize the tonnage multi-level control system according to the described hydraulic press of claim 1 more, it is characterized in that: also be provided with inserted valve between said magnetic valve and the classification tonnage group.
4. organize the tonnage multi-level control system according to the described hydraulic press of claim 1 more, it is characterized in that: said several classification tonnage group constitutes a plurality of branches of said proportional pressure control valve.
5. organize the tonnage multi-level control system according to the described hydraulic press of claim 1 more; It is characterized in that: also be connected with the C type solenoid directional control valve that is used to control this classification tonnage group pressure release backhaul on described each classification tonnage group; The outlet of all C type solenoid directional control valves converges on the same oil pipe, and this oil pipe is connected in the fuel tank.
6. organize the tonnage multi-level control system according to the described hydraulic press of claim 5 more, it is characterized in that: also be provided with HA type solenoid directional control valve between the convergent point of said C type solenoid directional control valve and the said fuel tank.
7. organize the tonnage multi-level control system according to the described hydraulic press of claim 5 more, it is characterized in that: also be provided with prefill valve between the outlet of described each classification tonnage group and the said C type solenoid directional control valve.
8. organize the tonnage multi-level control system according to the arbitrary described hydraulic press of claim 1 to 6 more, it is characterized in that: also be provided with pressure sensor on the said connection oil pipe.
9. organize the tonnage multi-level control system according to the arbitrary described hydraulic press of claim 1 to 6 more, it is characterized in that: also be provided with Pressure gauge on the said connection oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110313455A CN102328455A (en) | 2011-10-14 | 2011-10-14 | Multi-group tonnage classification control system of hydraulic press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110313455A CN102328455A (en) | 2011-10-14 | 2011-10-14 | Multi-group tonnage classification control system of hydraulic press |
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| CN102328455A true CN102328455A (en) | 2012-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309161A (en) * | 2014-08-29 | 2015-01-28 | 合肥海德数控液压设备有限公司 | Multi-cylinder piecewise pressure regulation system for hydraulic press |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819536A (en) * | 1993-12-03 | 1998-10-13 | Applied Power Inc. | Hydraulic circuit |
| CN200977735Y (en) * | 2006-11-29 | 2007-11-21 | 天津市天锻压力机有限公司 | Hydraulic control system for energy-saving drawing hydraulic press |
| CN101513776A (en) * | 2008-12-18 | 2009-08-26 | 天津市天锻压力机有限公司 | Automatic control system for slider cylinder and hydraulic cushion of hydraulic machine |
| CN201313410Y (en) * | 2008-12-09 | 2009-09-23 | 天津市天锻压力机有限公司 | Hydraulic control device with groups of hydraulic cushions working integrally of hydraulic machine |
-
2011
- 2011-10-14 CN CN201110313455A patent/CN102328455A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819536A (en) * | 1993-12-03 | 1998-10-13 | Applied Power Inc. | Hydraulic circuit |
| CN200977735Y (en) * | 2006-11-29 | 2007-11-21 | 天津市天锻压力机有限公司 | Hydraulic control system for energy-saving drawing hydraulic press |
| CN201313410Y (en) * | 2008-12-09 | 2009-09-23 | 天津市天锻压力机有限公司 | Hydraulic control device with groups of hydraulic cushions working integrally of hydraulic machine |
| CN101513776A (en) * | 2008-12-18 | 2009-08-26 | 天津市天锻压力机有限公司 | Automatic control system for slider cylinder and hydraulic cushion of hydraulic machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309161A (en) * | 2014-08-29 | 2015-01-28 | 合肥海德数控液压设备有限公司 | Multi-cylinder piecewise pressure regulation system for hydraulic press |
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Application publication date: 20120125 |