CN204082722U - The three-shaft linkage control gear of powder press hydraulic system - Google Patents
The three-shaft linkage control gear of powder press hydraulic system Download PDFInfo
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- CN204082722U CN204082722U CN201420309295.6U CN201420309295U CN204082722U CN 204082722 U CN204082722 U CN 204082722U CN 201420309295 U CN201420309295 U CN 201420309295U CN 204082722 U CN204082722 U CN 204082722U
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- hydraulic system
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- hydraulic
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Abstract
The utility model provides a kind of three-shaft linkage control gear of powder press hydraulic system, comprises hydraulic drive unit, control unit, obtains current kinetic position and the current oil pressure of hydraulic system; Pressure transducer, detects the current oil pressure of oil cylinder; Position encoder, detects the current kinetic position of hydraulic system; Difference between described current kinetic position and the extreme sport position of hydraulic system is less than position setting value, and when the difference of current oil pressure and benchmark oil pressure is less than pressure set points, the stop motion of control unit hydraulic control system.Often precision is not high to solve hydraulic control system, and can not the problem simultaneously run of multiaxis.
Description
Technical field
The utility model belongs to field of hydraulic control, more specifically, relates to a kind of three-shaft linkage control gear of powder press hydraulic system.
Background technique
Many engineering machinery all have hydraulic control system, hydraulic control system can comprise the workpiece of hydraulic drive unit and hydraulic drive unit driving, and the hydraulic system of neodymium iron boron press requires that highi degree of accuracy controls, and not only wants the pressure of hydraulic control system, and want accurate control rate, position.And hydraulic control system in prior art often precision is not high, and can not to run by multiaxis simultaneously.
Summary of the invention
The utility model aims to provide a kind of three-shaft linkage control gear and method of powder press hydraulic system, not high to solve precision, can not the problem simultaneously run of multiaxis.
By the following technical solutions, a kind of three-shaft linkage control gear of powder press hydraulic system, comprising the utility model: oil cylinder A, oil cylinder B, oil cylinder C, respectively by A axle, B axle, C axle controlling run; Control unit, obtains current kinetic position and the current oil pressure of hydraulic system; Pressure transducer, detects the current oil pressure of oil cylinder; Position encoder, detects the current kinetic position of hydraulic system;
Difference between described current kinetic position and the extreme sport position of hydraulic system is less than position setting value, and when the difference of current oil pressure and benchmark oil pressure is less than pressure set points, the stop motion of control unit hydraulic control system;
Described benchmark oil pressure is the current oil pressure that difference between described current kinetic position and the extreme sport position of described hydraulic system equals described hydraulic system when described position sets processed;
Described pressure transducer and position encoder are connected oil cylinder A, oil cylinder B, oil cylinder C respectively;
Described control unit comprises microprocessor or PLC, adopts pid control mode;
Described benchmark oil pressure is the current oil pressure that difference between described current kinetic position and the extreme sport position of described hydraulic system equals described hydraulic system when described position sets processed;
The utility model is controlled by pid control mode and encoder, and the pressure of accurate regulator solution compressing cylinder, stroke, and speed, realize three-shaft linkage, reaches the high-precision requirement of neodymium iron boron hydraulic system of press.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the three-shaft linkage control gear structural drawing of powder press hydraulic system;
Embodiment
See Fig. 1, a kind of three-shaft linkage control gear of powder press hydraulic system, comprising: oil cylinder A, oil cylinder B, oil cylinder C, respectively by A axle, B axle, C axle controlling run, and three axle linkages; Control unit, obtains current kinetic position and the current oil pressure of hydraulic system; Difference between current kinetic position and the extreme sport position of hydraulic system is less than position setting value, and the difference of current oil pressure and benchmark oil pressure is when being less than pressure set points, the stop motion of control unit hydraulic control system, plant running can be reduced like this close to the impact to equipment during extreme sport position, prevent collision; Pressure transducer detects the current oil pressure of oil cylinder; Position encoder detects the current kinetic position of hydraulic system; Control unit adopts pid control mode.
Concrete, as setting A oil cylinder working-pressure position 50KN, then run A oil cylinder, the actual pressure measured is 48KN, and by numeric feedback in processor, PID carries out adjustment correction, and make pressure reach 50KN, vice versa.
During work, arrange the numerical value of needs, as the speed of oil cylinder, running position, pressure etc., run, and detected by position encoder and pressure transducer, numerical value turns back in processor and processes, and carry out PID adjustment, thus realize accurately controlling, multi-shaft interlocked.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (1)
1. a three-shaft linkage control gear for powder press hydraulic system, is characterized in that, comprising:
Oil cylinder A, oil cylinder B, oil cylinder C, respectively by A axle, B axle, C axle controlling run; Control unit, obtains current kinetic position and the current oil pressure of hydraulic system; Pressure transducer, detects the current oil pressure of oil cylinder; Position encoder, detects the current kinetic position of hydraulic system;
Described pressure transducer and position encoder are connected oil cylinder A, oil cylinder B, oil cylinder C respectively;
Described control unit comprises microprocessor or PLC, adopts pid control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309295.6U CN204082722U (en) | 2014-06-11 | 2014-06-11 | The three-shaft linkage control gear of powder press hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309295.6U CN204082722U (en) | 2014-06-11 | 2014-06-11 | The three-shaft linkage control gear of powder press hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082722U true CN204082722U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309295.6U Active CN204082722U (en) | 2014-06-11 | 2014-06-11 | The three-shaft linkage control gear of powder press hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204082722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127954A (en) * | 2017-12-25 | 2018-06-08 | 重庆蔡氏液压设备有限公司 | A kind of frame type hydraulic press |
-
2014
- 2014-06-11 CN CN201420309295.6U patent/CN204082722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127954A (en) * | 2017-12-25 | 2018-06-08 | 重庆蔡氏液压设备有限公司 | A kind of frame type hydraulic press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |