CN105458251A - Precise positioning system for powder hydraulic press based on Delta controller - Google Patents
Precise positioning system for powder hydraulic press based on Delta controller Download PDFInfo
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- CN105458251A CN105458251A CN201410441950.8A CN201410441950A CN105458251A CN 105458251 A CN105458251 A CN 105458251A CN 201410441950 A CN201410441950 A CN 201410441950A CN 105458251 A CN105458251 A CN 105458251A
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- servo
- hydraulic cylinder
- delta controller
- servo valve
- hydraulic press
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Abstract
The invention discloses a precise positioning system for a powder hydraulic press based on a Delta controller. The precise positioning system comprises a servo hydraulic cylinder action part, a constant delivery pump, an energy accumulator and the Delta controller, wherein the servo hydraulic cylinder action part comprises a servo hydraulic cylinder, a servo valve connected with the servo hydraulic cylinder through an oil transportation pipeline and an oil tank connected with the servo valve; a displacement ruler is installed on the servo hydraulic cylinder; the constant delivery pump is connected with the servo valve through an oil transportation pipeline; the energy accumulator is connected with the constant delivery pump and the servo valve through oil transportation pipelines; the Delta controller is internally provided with a continuous command variation function, the continuous action changes of the servo valve are controlled by the Delta controller according to the continuous command variation function, and an I/O terminal of the Delta controller is electrically connected with the servo valve and the displacement ruler respectively. According to the precise positioning system for the powder hydraulic press based on the Delta controller, continuous control of the powder hydraulic press is achieved through the Delta controller, and the precise positioning system has the advantages of being high in control precision and convenient to use.
Description
Technical field
The present invention relates to hydraulic press high-precision motion positioning technical field, particularly relate to a kind of powder hydraulic press Precise Position System based on Delta controller.
Background technology
Hydraulic press for powder products automobile engine, electric tool, household electrical appliances, Aero-Space, etc. field produce in, have a wide range of applications, due to very high to the requirement of pulverulent product element precision, therefore require that each hydraulic cylinder in process of production must be very accurate in setting movement, otherwise part charge weight and compacting precision can be affected.
Along with range of application increasingly extensive of hydraulic press for powder products, digital Control Technology have also been obtained and applies widely in hydraulic press for powder products, therefore high-end numerical control hydraulic press for powder products, also proposes higher requirement to each hydraulic motion Template Location precision and running stability.Traditional hydraulic press is by Controlling solenoid valve adhesive or disconnection, hydraulic cylinder cooperative mechanical is driven to regulate block to complete location, because in hydraulic cylinder process, fuel delivery switches Spline smoothing by magnetic valve, therefore hydraulic cylinder there will be hydraulic shock phenomenon, traditional mechanical locate mode needs artificial repeatedly re-adjustments, operates very loaded down with trivial details.Have employed Delta controller, servo valve and accumulator control mode for this problem for this reason specially, with the precision location realizing hydraulic cylinder and the steady control run.
Summary of the invention
The technical problem to be solved in the present invention is: improve existing powder hydraulic press process navigation system, provides a kind of and has the high powder hydraulic press Precise Position System based on Delta controller of precision.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
Based on a powder hydraulic press Precise Position System for Delta controller, it is characterized in that: described powder hydraulic press Precise Position System comprises:
Servo hydraulic cylinder action component, described servo hydraulic cylinder action component comprises a servo hydraulic cylinder, a servo valve and a fuel tank be connected with described servo valve be connected by pipeline road with described servo hydraulic cylinder; Described servo hydraulic cylinder is provided with displacement chi;
Constant displacement pump, described constant displacement pump is connected by pipeline road with above-mentioned servo valve respectively;
Accumulator, described accumulator is connected by pipeline road with above-mentioned constant displacement pump, servo valve respectively;
Inside is provided with the Delta controller of continual command change function, and Delta controller controls the continuous action change of servo valve according to above-mentioned continual command change function, and the I/O terminal of described Delta controller is electrically connected with servo valve, displacement chi respectively.
The advantage that the present invention has and good effect are:
One, by the continual command change function in Delta controller, achieve the even running of hydraulic cylinder, decrease the impact of equipment, achieve the Flexible Control of hydraulic cylinder;
One, by optimizing hydraulic cylinder parameter, the high speed achieving hydraulic cylinder is accurately located, and under 60mm/s moving condition, positioning precision can reach 0.001mm.Decrease the workload of artificial re-adjustments electromechanical stop, simplify mechanical design structure, achieve digitized control mode.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Wherein: 1, servo hydraulic cylinder; 2, servo valve; 3, accumulator; 4, constant displacement pump; 5, Delta controller;
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of powder hydraulic press Precise Position System based on Delta controller, described powder hydraulic press Precise Position System comprises:
Servo hydraulic cylinder action component, described servo hydraulic cylinder action component comprises the servo valve 2 and a fuel tank be connected with described servo valve 2 that a servo hydraulic cylinder 1, and described servo hydraulic cylinder 1 be connected by pipeline road; Described servo hydraulic cylinder 1 is provided with displacement chi;
Constant displacement pump 4, described constant displacement pump 4 is connected by pipeline road with above-mentioned servo valve 2 respectively;
Accumulator 3, described accumulator 3 is connected by pipeline road with above-mentioned constant displacement pump 4, servo valve 2 respectively;
The continuous action that Delta controller 5, the Delta controller 5 that inside is provided with continual command change function controls servo valve 2 according to above-mentioned continual command change function changes, and the I/O terminal of described Delta controller 5 is electrically connected with servo valve 2, displacement chi respectively.
The course of work of the present invention is:
(1) first with reference to figure 1, device hardware servo hydraulic cylinder 1, servo valve 2, accumulator 3, constant displacement pump 4, Delta controller 5, displacement chi are connected.
(2) uniformity of servo valve 2 output voltage and servo hydraulic cylinder 1 direction of motion is guaranteed: servo valve 2 is 0 to 10V time, and servo hydraulic cylinder 1 shift value increases; Servo valve 2 is 0 to-10V time, and servo hydraulic cylinder 1 shift value increases little.
(3) drive hydraulic cylinder in low speed forward, negative movement by Delta controller 5, the kinematic parameter of setting and preferred servo hydraulic cylinder 1, guarantee that the actual low speed of servo hydraulic cylinder 1 is positive and negative to motion and congruence.
(4) in Delta controller 5, be provided with the instruction change function for controlling servo hydraulic cylinder 1 continuous action in advance, these functions can be modified as required in real work, finally, Delta controller 5 is according to the control of above-mentioned instruction change function realization to servo hydraulic cylinder 1.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (1)
1. based on a powder hydraulic press Precise Position System for Delta controller, it is characterized in that: described powder hydraulic press Precise Position System comprises:
Servo hydraulic cylinder action component, described servo hydraulic cylinder action component comprises a servo hydraulic cylinder, a servo valve and a fuel tank be connected with described servo valve be connected by pipeline road with described servo hydraulic cylinder; Described servo hydraulic cylinder is provided with displacement chi;
Constant displacement pump, described constant displacement pump is connected by pipeline road with above-mentioned servo valve respectively;
Accumulator, described accumulator is connected by pipeline road with above-mentioned constant displacement pump, servo valve respectively;
Inside is provided with the Delta controller of continual command change function, and Delta controller controls the continuous action change of servo valve according to above-mentioned continual command change function, and the I/O terminal of described Delta controller is electrically connected with servo valve, displacement chi respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441950.8A CN105458251B (en) | 2014-09-02 | 2014-09-02 | Powder hydraulic press Precise Position System based on Delta controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441950.8A CN105458251B (en) | 2014-09-02 | 2014-09-02 | Powder hydraulic press Precise Position System based on Delta controllers |
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| Publication Number | Publication Date |
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| CN105458251A true CN105458251A (en) | 2016-04-06 |
| CN105458251B CN105458251B (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410441950.8A Active CN105458251B (en) | 2014-09-02 | 2014-09-02 | Powder hydraulic press Precise Position System based on Delta controllers |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1324763A1 (en) * | 1986-03-04 | 1987-07-23 | Запорожский машиностроительный институт им.В.Я.Чубаря | Apparatus for isostatic compacting of powder |
| CN86108883A (en) * | 1985-12-30 | 1987-08-12 | 霍尔比戈液压有限公司 | The synchronizing controls of multi-hydraulic-cylinder transmission |
| CN201042856Y (en) * | 2007-06-20 | 2008-04-02 | 成都四星液压制造有限公司 | Magnetic materials dry pressing shaping oleodynamic press hydraulic system |
| CN202239624U (en) * | 2011-09-20 | 2012-05-30 | 天津市天锻压力机有限公司 | Electrohydraulic proportional control system for powder hydraulic press |
| CN203381223U (en) * | 2013-08-14 | 2014-01-08 | 合肥合锻机床股份有限公司 | Manual fine adjusting device for limiting ejecting cylinder of powder metallurgy hydraulic machine |
-
2014
- 2014-09-02 CN CN201410441950.8A patent/CN105458251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108883A (en) * | 1985-12-30 | 1987-08-12 | 霍尔比戈液压有限公司 | The synchronizing controls of multi-hydraulic-cylinder transmission |
| SU1324763A1 (en) * | 1986-03-04 | 1987-07-23 | Запорожский машиностроительный институт им.В.Я.Чубаря | Apparatus for isostatic compacting of powder |
| CN201042856Y (en) * | 2007-06-20 | 2008-04-02 | 成都四星液压制造有限公司 | Magnetic materials dry pressing shaping oleodynamic press hydraulic system |
| CN202239624U (en) * | 2011-09-20 | 2012-05-30 | 天津市天锻压力机有限公司 | Electrohydraulic proportional control system for powder hydraulic press |
| CN203381223U (en) * | 2013-08-14 | 2014-01-08 | 合肥合锻机床股份有限公司 | Manual fine adjusting device for limiting ejecting cylinder of powder metallurgy hydraulic machine |
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| CN105458251B (en) | 2018-02-06 |
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