CN101168305A - Hydraulic machine slide block down speed control structure - Google Patents
Hydraulic machine slide block down speed control structure Download PDFInfo
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- CN101168305A CN101168305A CNA200710150297XA CN200710150297A CN101168305A CN 101168305 A CN101168305 A CN 101168305A CN A200710150297X A CNA200710150297X A CN A200710150297XA CN 200710150297 A CN200710150297 A CN 200710150297A CN 101168305 A CN101168305 A CN 101168305A
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Abstract
Disclosed is a control structure of the descending speed of a hydraulic slide block. An oil way of driving the hydraulic slide block is provided with a proportional servo-valve adjusting the speed of the slide block by controlling oil flow quantity, the proportional servo-valve is connected to the oil way between an outlet of an oil pump and a hydraulic cylinder, the proportional servo-valve is connected with an output module for four channels analog quantity placed in a control device PLC through an amplifying plate which is mounted in the proportional servo-valve, a foot A9 of the output module for four channels analog quantity is connected with 24V, a foot B9 of the output module is connected with 0V, a foot A4 of the output module and a foot A 5 of the output module form an output channel, the foot A4 of the output module is OV1+, and the foot A5 of the output module is OV1-.The amplifying plate arranged inside the proportional servo-valve is used to amplify analog input signals, the foot A and the foot B are in direct current with the power supply, a foot D of the output module is connected with OV1+, a foot E of the output module is connected with OV1- as a setting voltage, and a foot C and a foot F of the output module are used for feedback. The invention is capable of effectively adjusting the speed of the slide block and having stable and reliable controlling ability, thereby a hydraulic machine of the same type has the functions of stretching, bending, modeling process and the like, simultaneously, the hydraulic machine of the same type has the functions of bedding-in, test-punching, delicate adjusting of a die and the like, ensuring the comprehensive functions of the hydraulic machine.
Description
Technical field
The invention belongs to a kind of hydraulic press automation field, the speed that particularly relates to the effective adjusting slider of a kind of proportion of utilization servo valve, and control is stable, reliable, thus the hydraulic machine slide block down speed control structure of functions such as the bedding-in, the examination that make hydraulic press have mould are dashed, accurate adjustment.
Background technology
At present, along with the continuous development of science and technology, people are also improving constantly the requirement of hydraulic press, wish on general hydralic stamping press also to carry out functions such as bedding-in, examination dash to mould.Since on general hydralic stamping press, do not have described to mould carry out bedding-in, examination such as dashes at function, so just do not possess the structure that realizes above-mentioned functions yet, want to realize above-mentioned these functions so, how better adjusting slider speed has just become the technical problem that mainly solves.
Summary of the invention
The present invention provides the speed of the effective adjusting slider of a kind of proportion of utilization servo valve for solving the technical problem that exists in the known technology, and control is stable, reliable, thus the hydraulic machine slide block down speed control structure of functions such as the bedding-in, the examination that make hydraulic press have mould are dashed, accurate adjustment.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of hydraulic machine slide block down speed control structure, in the oil circuit that drives slider of hydraulic press, be provided with the proportional servo valve that slide block is carried out speed governing by the flow of controlling oil, described proportional servo valve is connected in the outlet and the oil circuit between the hydraulic press oil cylinder of oil pump, and described proportional servo valve also is connected with controller PLC.
Described proportional servo valve is arranged in the actuating unit of hydraulic press.
Described proportional servo valve is to be connected with 4 tunnels analogy amount output modules among the controller PLC by its built-in amplification plate, the pin A9 of described 4 tunnels analogy amount output modules meets 24V, pin B9 meets 0V, pin A4, pin A5 are an output channel, and its pin A4 is that OV1+, pin A5 are OV1-; The built-in amplification plate of described proportional servo valve is used for the amplification of analog input signal, and pin A wherein, pin B connect direct current 24V power supply, and pin D meets OV1+, pin E, and to meet OV1-be given voltage, and pin C, pin F are used for feedback.
Advantage and good effect that hydraulic machine slide block down speed control structure of the present invention has are: the present invention is applied on the hydraulic press the effectively speed of adjusting slider with proportional servo valve, its control is stable, reliable, and after being applied in proportional servo valve on the hydralic stamping press, can make the type hydraulic press when having technologies such as stretching, bending, moulding, functions such as bedding-in, the examination that also has mould dashed, accurate adjustment, make the function of press more comprehensive, performance is more good.
Description of drawings
Fig. 1 is the structural representation of hydraulic press;
Fig. 2 is that hydraulic press top proportional servo valve is provided with the location drawing at actuating unit;
Fig. 3 is the built-in amplification plate of proportional servo valve and the 4 tunnels analogy amount output module catenation principle figure of PLC;
Fig. 4 is the syndeton schematic diagram of proportional servo valve in hydraulic circuit.
Label among the figure is respectively:
The 1-slide block; The 2-proportional servo valve; The 3-actuating unit; 4-4 tunnels analogy amount output module; The built-in amplification plate of 5-; 6-hydraulic press oil cylinder; 7-valve group; The 8-electromagnet; The 9-pressure switch; The 10-pump; The 11-motor; The 12-fuel tank; 13-controls oil circuit; The 14-hydraulic press; 15-electrically operated case; The 16-electric control box.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. to describe hydraulic machine slide block down speed control structure of the present invention in detail as follows:
As shown in Figure 1, include electrically operated case 15, electric control box 16 on the hydraulic press 14 of the present invention, wherein electrically operated case 15 is provided with in control terminal-touch-screen able to programme, the electric control box 16 and is provided with Programmable Logic Controller PLC, and PLC is connected with a communication cable with touch-screen.
As shown in Figure 4, hydraulic machine slide block down speed control structure of the present invention, be in the oil circuit that drives slider of hydraulic press 1, to be provided with the proportional servo valve 2 that slide block is carried out speed governing by the flow of controlling oil, described proportional servo valve 2 is connected in the outlet and the oil circuit between the hydraulic press oil cylinder 6 of oil pump, and described proportional servo valve 2 also is connected with controller PLC.
In the vertical view of hydraulic press 14 as shown in Figure 2, can see the actuating unit 3 at hydraulic press top, the described proportional servo valve 2 that is used for the slide block speed governing is arranged on the actuating unit 3 of hydraulic press, with the shielding line of one 5 core this proportional servo valve 2 is connected on the 4 tunnels analogy amount output modules 4 of PLC.
As shown in Figure 3, described proportional servo valve 2 is to be connected with 4 tunnels analogy amount output modules 4 among the controller PLC by its built-in amplification plate 5, the pin A9 of described 4 tunnels analogy amount output modules 4 meets 24V, pin B9 meets 0V, pin A4, pin A5 are an output channel, the voltage signal of output 0-10V, its pin A4 is that OV1+, pin A5 are OV1-; The built-in amplification plate 5 of described proportional servo valve is used for the amplification of analog input signal, and pin A wherein, pin B connect direct current 24V power supply, and its pin D meets OV1+, pin E, and to meet OV1-be given voltage, and pin C, pin F are used for feedback.
Operation principle of the present invention is: at first connect power supply, a given value (0-4000) on touch-screen then, this value be corresponding given voltage 0-10V or-10V-0; This set-point is added in by analog output module 4 on the built-in amplification plate 5 of proportional servo valve 2, on the pin D of promptly built-in amplification plate 5, the pin E, and the flow size of controllable valve thus, thus realize the adjusting of slide block down speed.
Claims (3)
1. hydraulic machine slide block down speed control structure, it is characterized in that: in the oil circuit that drives slider of hydraulic press (1), be provided with the proportional servo valve (2) that slide block is carried out speed governing by the flow of controlling oil, described proportional servo valve (2) is connected in the outlet and the oil circuit between the hydraulic press oil cylinder (6) of oil pump, and described proportional servo valve (2) also is connected with controller PLC.
2. hydraulic machine slide block down speed control structure according to claim 1 is characterized in that: described proportional servo valve (2) is arranged in the actuating unit (3) of hydraulic press.
3. hydraulic machine slide block down speed control structure according to claim 1, it is characterized in that: described proportional servo valve (2) is to be connected with 4 tunnels analogy amount output modules (4) among the controller PLC by its built-in amplification plate (5), the pin A9 of described 4 tunnels analogy amount output modules (4) meets 24V, pin B9 meets 0V, pin A4, pin A5 are an output channel, and its pin A4 is that OV1+, pin A5 are OV1-; The built-in amplification plate (5) of described proportional servo valve is used for the amplification of analog input signal, and pin A wherein, pin B connect direct current 24V power supply, and pin D meets OV1+, pin E, and to meet OV1-be given voltage, and pin C, pin F are used for feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710150297XA CN101168305A (en) | 2007-11-22 | 2007-11-22 | Hydraulic machine slide block down speed control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710150297XA CN101168305A (en) | 2007-11-22 | 2007-11-22 | Hydraulic machine slide block down speed control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101168305A true CN101168305A (en) | 2008-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710150297XA Pending CN101168305A (en) | 2007-11-22 | 2007-11-22 | Hydraulic machine slide block down speed control structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248701A (en) * | 2011-06-08 | 2011-11-23 | 天津市天锻压力机有限公司 | Frequency converter speed adjusting system of movable rotary pressure head frame type hydraulic machine |
| CN102380569A (en) * | 2011-09-20 | 2012-03-21 | 天津市天锻压力机有限公司 | Control method for setting constant speed, constant strain and variable strain process pressing curve |
| CN103331400A (en) * | 2013-07-04 | 2013-10-02 | 天津市天锻压力机有限公司 | Speed control system of hydraulic wheel hub forging machine |
| CN104191643A (en) * | 2014-08-20 | 2014-12-10 | 江苏大学 | System and method for monitoring and controlling stamping speed and blank holder force of single-acting hydraulic press |
| CN105313370A (en) * | 2014-06-20 | 2016-02-10 | 天津市天锻压力机有限公司 | Method for proportioning pump constant power control for bedding-in hydraulic machine |
| CN105522749A (en) * | 2015-11-30 | 2016-04-27 | 沃得精机(中国)有限公司 | Sub-manifold block with adjustable pressing speed of hydraulic machine and speed adjusting method |
-
2007
- 2007-11-22 CN CNA200710150297XA patent/CN101168305A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248701A (en) * | 2011-06-08 | 2011-11-23 | 天津市天锻压力机有限公司 | Frequency converter speed adjusting system of movable rotary pressure head frame type hydraulic machine |
| CN102380569A (en) * | 2011-09-20 | 2012-03-21 | 天津市天锻压力机有限公司 | Control method for setting constant speed, constant strain and variable strain process pressing curve |
| CN103331400A (en) * | 2013-07-04 | 2013-10-02 | 天津市天锻压力机有限公司 | Speed control system of hydraulic wheel hub forging machine |
| CN105313370A (en) * | 2014-06-20 | 2016-02-10 | 天津市天锻压力机有限公司 | Method for proportioning pump constant power control for bedding-in hydraulic machine |
| CN105313370B (en) * | 2014-06-20 | 2017-11-03 | 天津市天锻压力机有限公司 | The proportioning pump constant-power control method of bedding-in hydraulic press |
| CN104191643A (en) * | 2014-08-20 | 2014-12-10 | 江苏大学 | System and method for monitoring and controlling stamping speed and blank holder force of single-acting hydraulic press |
| CN104191643B (en) * | 2014-08-20 | 2016-05-25 | 江苏大学 | The monitoring of single action hydraulic press drawing velocity and pressure-pad-force and control system and method |
| CN105522749A (en) * | 2015-11-30 | 2016-04-27 | 沃得精机(中国)有限公司 | Sub-manifold block with adjustable pressing speed of hydraulic machine and speed adjusting method |
| CN105522749B (en) * | 2015-11-30 | 2017-10-27 | 沃得精机(中国)有限公司 | Hydraulic press pushes adjustable point of oil path block of speed and speed regulating method |
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Open date: 20080430 |