CN100999004A - High speed punch cutting device and its control method - Google Patents
High speed punch cutting device and its control method Download PDFInfo
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- CN100999004A CN100999004A CNA2007100262076A CN200710026207A CN100999004A CN 100999004 A CN100999004 A CN 100999004A CN A2007100262076 A CNA2007100262076 A CN A2007100262076A CN 200710026207 A CN200710026207 A CN 200710026207A CN 100999004 A CN100999004 A CN 100999004A
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Abstract
The present invention relates to a hydraulic high-speed shearing equipment and its control method. Said hydraulic high-speed shearing equipment includes the following several portions: shearing hydraulic cylinder, shearing die, shearing head connected with shearing hydraulic cylinder and workpiece placed between the shearing head and shearing die. Besides, it also includes an oil-supplying system. Said invention also provides its working principle and its control method and concrete steps.
Description
Technical field:
The present invention is a kind of hydraulic high-speed shearing equipment and control method thereof by the die-cut workpiece of die-cut oil cylinder drive cutting head motion realization, belongs to the innovative technology of blanking units and control method thereof.
Background technology:
In the existing fluid pressure type blanking units by the die-cut workpiece of die-cut oil cylinder drive cutting head motion realization, the fuel feeding control system of die-cut oil cylinder mostly adopts the structure by an oil feeding line, the shortcoming of its existence is when work, is difficult to realize the rapid movement of die-cut oil cylinder, inefficiency.In addition, the control of the speed of die-cut oil cylinder, stroke and position is accurately low, and low-response is difficult to realize the reciprocal die-cut work of high speed.
Summary of the invention:
The objective of the invention is to consider the problems referred to above and a kind of rapid movement of realizing die-cut oil cylinder is provided, high efficiency, and the control of the speed of die-cut oil cylinder, stroke and position is accurately high, and response is fast, can realize the high speed punch cutting device of the reciprocal die-cut work of high speed.
Another object of the present invention is to control the control method of high speed punch cutting device simply and easily.
Structure principle chart of the present invention as shown in Figure 1, include die-cut oil cylinder (11), die cutting die (14), the cutting head (13) that is connected with die-cut oil cylinder (11) and place cutting head (13) and die cutting die (14) between workpiece (12), die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie are connected with oil supply system, wherein oil supply system includes the servo valve (16) of control low pressure oil duct (2) to die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie fuel feeding, control high-pressure oil duct (1) is to the height of die-cut oil cylinder (11) upper oil cavitie fuel feeding, low tension switch valve (15), and the control end of servo valve (16) is connected with its commutation of control and controls the digital cylinder (23) that its aperture realizes that die-cut oil cylinder velocity magnitude is regulated.
Above-mentioned servo valve (16) is a post rod type mechanical hydraulic servo valve, numeral cylinder (23) includes servomotor (20), electronic reversal valve (21), first converter (19), second converter (19A), screw mandrel transmission (18), guide rod (17), oil cylinder (22), the output shaft of servomotor (20) is connected with electronic reversal valve (21) by first converter (19), electronic reversal valve (21) is connected with the nut of screw mandrel transmission (18) by second converter (19A), guide rod (17) is connected with the screw mandrel of screw mandrel transmission (18), and an end of guide rod (17) is connected with the piston of oil cylinder (22), the other end of guide rod (17) is connected with the push rod (16a) of post rod type mechanical hydraulic servo valve (16), the oil-in of oil cylinder (22) is connected with electronic reversal valve (21), and the lower oil cavitie of die-cut oil cylinder (11) is connected with the oil duct P of electronic reversal valve (21) by the oil duct P1 on the cutting head (13).When cutting head is descending,, respond fast so can realize electronic reversal valve (21) because the lower oil cavitie of die-cut oil cylinder is connected with the oil duct P of electronic reversal valve by the oil duct P1 on the cutting head.
Above-mentioned high-pressure oil duct (1) is connected with high pressure accumulator (7) by first check valve (9a) that surges, and above-mentioned low pressure oil duct (2) is connected with low pressure accumulator (8) by second check valve (9b) that surges.
Above-mentioned high pressure accumulator (7) is connected with back oil road (3) by the first accumulator control valve (4), and above-mentioned low pressure accumulator (8) is connected with back oil road (3) by the second accumulator control valve (5).
Above-mentioned control low pressure oil duct (2) is connected with back oil road (3) by the 3rd surge check valve (10) and the second accumulator control valve (5) to the servo valve (16) of die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie fuel feeding.
Above-mentioned screw mandrel transmission (18) is the ball screw transmission.
Above-mentioned die-cut oil cylinder (11) is connected with displacement transducer (24).
The control method of high speed punch cutting device of the present invention, it includes following steps:
When (1) starting working, send out pulse signal for the servomotor (20) of digital cylinder (23), the guide rod (17) of numeral cylinder (23) makes post rod type mechanical hydraulic servo valve (16) commutation, the next working position that is in of post rod type mechanical hydraulic servo valve (16), low pressure oil duct (2) is to the upper oil cavitie fuel feeding of die-cut oil cylinder (11), because the piston of die-cut oil cylinder (11) is the different differential actions that form of area up and down, the piston rod of die-cut oil cylinder (11) is descending fast;
(2) when the pressure of die-cut oil cylinder (11) upper oil cavitie reaches setting commutation pressure, high and low pressure switch valve (15) commutation, the next working position that is in, hydraulic oil is to the upper oil cavitie fuel feeding of die-cut oil cylinder (11), the low pressure oil sources is by accumulator control valve (4) off-load, and the piston rod of die-cut oil cylinder (11) is directly moving descending;
(3) workpiece completion of processing, pressure reduces, and post rod type mechanical hydraulic servo valve (16) is upper in running order, and low pressure oil duct (2) is to the lower oil cavitie fuel feeding of die-cut oil cylinder (11), and the piston rod of die-cut oil cylinder (11) is directly moving up;
(4) if the pressure of system when setting operating pressure, low pressure oil and hydraulic oil make the oil sources off-load by the first accumulator control valve (4) and the second accumulator control valve (5).
The upper oil cavitie of the die-cut oil cylinder of high speed punch cutting device of the present invention and lower oil cavitie are owing to adopt differential connection, low pressure oil and two kinds of rapid movement loops of hydraulic oil to realize the fuel feeding control system of die-cut oil cylinder rapid movement, use the low pressure oil sources during F.F., die-cut oil cylinder is realized F.F. by differential connection, therefore, its high efficiency.In addition, the aperture that the adjusting of die-cut oil cylinder speed adopts the digital hydraulic cylinder of band machine feedback (having utilized ball wire motion invertibity) to come the controller hydraulic servo, only need direct electric impulse signal to get final product to digital cylinder transmission different frequency, quantity, control does not have hysteresis, the machine feedback dynamic is good, and response is fast and control accuracy is high.The commutation that the digital hydraulic cylinder of machine feedback comes the controller hydraulic servo is with in employing simultaneously, to realize the commutation control of die-cut oil cylinder.In addition, the present invention also adopts displacement transducer to constitute closed-loop control, and die-cut oil cylinder is constituted more accurate stroke and Position Control.Simultaneously, the present invention adopts electromagnetism overflow and check valve to come high-pressure oil passage and differential oil line are isolated, thereby avoids interacting.And integrated by cylinder and valve, significantly reduce oil circuit length, improved the response characteristic and the reliability of device.Control method of the present invention is simple and convenient.
Description of drawings:
Fig. 1 is a structure principle chart of the present invention.
The specific embodiment:
Embodiment:
Structure principle chart of the present invention as shown in Figure 1, include die-cut oil cylinder 11, die cutting die 14, the cutting head 13 that is connected with die-cut oil cylinder 11 and place cutting head 13 and die cutting die 14 between workpiece 12, die-cut oil cylinder 11 upper oil cavities and lower oil cavitie are connected with the fuel feeding control system, wherein the fuel feeding control system includes control low pressure oil duct 2 servo valves 16 to die-cut oil cylinder 11 upper oil cavities and lower oil cavitie fuel feeding, control high-pressure oil duct 1 is to the height of die-cut oil cylinder 11 upper oil cavitie fuel feeding, low tension switch valve 15, and the control end of servo valve 16 is connected with its commutation of control and controls the digital cylinder 23 that its aperture realizes that die-cut oil cylinder velocity magnitude is regulated.In the present embodiment, above-mentioned servo valve 16 is a post rod type mechanical hydraulic servo valve, numeral cylinder 23 includes servomotor 20, electronic reversal valve 21, first converter 19, the second converter 19A, screw mandrel transmission 18, guide rod 17, oil cylinder 22, the output shaft of servomotor 20 is connected with electronic reversal valve 21 by first converter 19, electronic reversal valve 21 is connected with the nut of screw mandrel transmission 18 by the second converter 19A, guide rod 17 is connected with the screw mandrel of screw mandrel transmission 18, and an end of guide rod 17 is connected with the piston of oil cylinder 22, the other end of guide rod 17 is connected with the push rod 16a of post rod type mechanical hydraulic servo valve 16, the oil-in of oil cylinder 22 is connected with electronic reversal valve 21, and the lower oil cavitie of die-cut oil cylinder 11 is connected with the oil duct P of electronic reversal valve 21 by the oil duct P1 on the cutting head 13.In the present embodiment, above-mentioned screw mandrel transmission 18 is the ball screw transmission.
For keeping system pressure, guarantee the operate as normal of die-cut oil cylinder 11, above-mentioned high-pressure oil duct 1 is connected with high pressure accumulator 7 by the first check valve 9a that surges, and above-mentioned low pressure oil duct 2 is connected with low pressure accumulator 8 by the second check valve 9b that surges.
For realizing energy off-load when the pressure of accumulator is elevated to certain value, above-mentioned high pressure accumulator 7 is connected with back oil road 3 by the first accumulator control valve 4, and above-mentioned low pressure accumulator 8 is connected with back oil road 3 by the second accumulator control valve 5.
Be to realize the off-load of servo valve 16, above-mentioned control low pressure oil duct 2 is connected with back oil road 3 by the 3rd surge check valve 10 and the second accumulator control valve 5 to the servo valve 16 of die-cut oil cylinder 11 upper oil cavities and lower oil cavitie fuel feeding.
For ease of Installation and Debugging, the above-mentioned first accumulator control valve 4, the second accumulator control valve 5, high pressure accumulator 7, low pressure accumulator 8, first check valve 9a, second check valve 9b, the 3rd check valve 10 that surges that surges that surges is integrated on the integrated package 6.
For realizing closed-loop control, above-mentioned die-cut oil cylinder 11 is connected with displacement transducer 24.
The control method of high speed punch cutting device of the present invention, it includes following steps:
When (1) starting working, give 20 pulse signals 25 of servomotor of digital cylinder 23, the guide rod 17 of numeral cylinder 23 makes 16 commutations of post rod type mechanical hydraulic servo valve, the post rod type mechanical hydraulic servo valve 16 the next working positions that are in, low pressure oil duct 2 is to the upper oil cavitie fuel feeding of die-cut oil cylinder 11, because the piston of die-cut oil cylinder 11 is the different differential actions that form of area up and down, the piston rod of die-cut oil cylinder 11 is descending fast;
(2) when the pressure of die-cut oil cylinder 11 upper oil cavities reached setting commutation pressure, among the embodiment, setting commutation pressure was 8 * 10
6Pa, 15 commutations of high and low pressure switch valve, the next working position that is in, hydraulic oil are to the upper oil cavitie fuel feeding of die-cut oil cylinder 11, and the low pressure oil sources is by 4 off-loads of accumulator control valve, and the piston rod of die-cut oil cylinder 11 is directly moving descending;
(3) workpiece completion of processing, pressure reduces, and post rod type mechanical hydraulic servo valve 16 is upper in running order, and low pressure oil duct 2 is to the lower oil cavitie fuel feeding of die-cut oil cylinder 11, and the piston rod of die-cut oil cylinder 11 is directly moving up;
(4) if the pressure of system when setting operating pressure, in the present embodiment, setting operating pressure is 2.85 * 10
7Pa, low pressure oil and hydraulic oil make the oil sources off-load by the first accumulator control valve 4 and the second accumulator control valve 5.
In the whole working cycles process, as shown in the table to the high-pressure pump of high-pressure oil duct 1 fuel feeding, the situation of low-lift pump, high and low pressure switch valve 15 and servo valve 16 to low pressure oil duct 2 fuel feeding:
| Operating mode | High-pressure pump to high- |
Low-lift pump to low |
High and low |
|
||
| Upper | The next | Upper | The next | |||
| F.F. | - | + | + | - | - | + |
| The worker advances | + | - | - | + | - | + |
| Rewind down | - | + | + | - | + | - |
'+' number expression work in the table, '-' number expression is not worked.
Claims (8)
1, a kind of high speed punch cutting device, include die-cut oil cylinder (11), die cutting die (14), the cutting head (13) that is connected with die-cut oil cylinder (11) and place cutting head (13) and die cutting die (14) between workpiece (12), die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie are connected with oil supply system, it is characterized in that oil supply system includes the servo valve (16) of control low pressure oil duct (2) to die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie fuel feeding, control high-pressure oil duct (1) is to the height of die-cut oil cylinder (11) upper oil cavitie fuel feeding, low tension switch valve (15), and the control end of servo valve (16) is connected with its commutation of control and controls the digital cylinder (23) that its aperture realizes that die-cut oil cylinder velocity magnitude is regulated.
2, high speed punch cutting device according to claim 1, it is characterized in that above-mentioned servo valve (16) is a post rod type mechanical hydraulic servo valve, numeral cylinder (23) includes servomotor (20), electronic reversal valve (21), first converter (19), second converter (19A), screw mandrel transmission (18), guide rod (17), oil cylinder (22), the output shaft of servomotor (20) is connected with electronic reversal valve (21) by first converter (19), electronic reversal valve (21) is connected with the nut of screw mandrel transmission (18) by second converter (19A), guide rod (17) is connected with the screw mandrel of screw mandrel transmission (18), and an end of guide rod (17) is connected with the piston of oil cylinder (22), the other end of guide rod (17) is connected with the push rod (16a) of post rod type mechanical hydraulic servo valve (16), the oil-in of oil cylinder (22) is connected with electronic reversal valve (21), and the lower oil cavitie of die-cut oil cylinder (11) is connected with the oil duct P of electronic reversal valve (21) by the oil duct P1 on the cutting head (13).
3, high speed punch cutting device according to claim 1, it is characterized in that above-mentioned high-pressure oil duct (1) is connected with high pressure accumulator (7) by first check valve (9a) that surges, above-mentioned low pressure oil duct (2) is connected with low pressure accumulator (8) by second check valve (9b) that surges.
4, high speed punch cutting device according to claim 3, it is characterized in that above-mentioned high pressure accumulator (7) is connected with back oil road (3) by the first accumulator control valve (4), above-mentioned low pressure accumulator (8) is connected with back oil road (3) by the second accumulator control valve (5).
5, high speed punch cutting device according to claim 4 is characterized in that above-mentioned control low pressure oil duct (2) is connected with back oil road (3) by the 3rd surge check valve (10) and the second accumulator control valve (5) to the servo valve (16) of die-cut oil cylinder (11) upper oil cavitie and lower oil cavitie fuel feeding.
6, high speed punch cutting device according to claim 2 is characterized in that above-mentioned screw mandrel transmission (18) is the ball screw transmission.
7,, it is characterized in that above-mentioned die-cut oil cylinder (11) is connected with displacement transducer (24) according to each described high speed punch cutting device of claim 1 to 6.
8, a kind of control method according to the described high speed punch cutting device of claim 1 is characterized in that including following steps:
When (1) starting working, send out pulse signal for the servomotor (20) of digital cylinder (23), the guide rod (17) of numeral cylinder (23) makes post rod type mechanical hydraulic servo valve (16) commutation, the next working position that is in of post rod type mechanical hydraulic servo valve (16), low pressure oil duct (2) is to the upper oil cavitie fuel feeding of die-cut oil cylinder (11), because the piston of die-cut oil cylinder (11) is the different differential actions that form of area up and down, the piston rod of die-cut oil cylinder (11) is descending fast;
(2) when the pressure of die-cut oil cylinder (11) upper oil cavitie reaches setting commutation pressure, high and low pressure switch valve (15) commutation, the next working position that is in, hydraulic oil is to the upper oil cavitie fuel feeding of die-cut oil cylinder (11), the low pressure oil sources is by accumulator control valve (4) off-load, and the piston rod of die-cut oil cylinder (11) is directly moving descending;
(3) workpiece completion of processing, pressure reduces, and post rod type mechanical hydraulic servo valve (16) is upper in running order, and low pressure oil duct (2) is to the lower oil cavitie fuel feeding of die-cut oil cylinder (11), and the piston rod of die-cut oil cylinder (11) is directly moving up;
(4) if the pressure of system when setting operating pressure, low pressure oil and hydraulic oil make the oil sources off-load by the first accumulator control valve (4) and the second accumulator control valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100262076A CN100469480C (en) | 2007-01-05 | 2007-01-05 | High speed punch cutting device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100262076A CN100469480C (en) | 2007-01-05 | 2007-01-05 | High speed punch cutting device and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN100999004A true CN100999004A (en) | 2007-07-18 |
| CN100469480C CN100469480C (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100262076A Expired - Fee Related CN100469480C (en) | 2007-01-05 | 2007-01-05 | High speed punch cutting device and its control method |
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| CN (1) | CN100469480C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588393A (en) * | 2012-03-12 | 2012-07-18 | 山东法因数控机械股份有限公司 | High-speed punching hydraulic circuit of hydraulic punching machine |
| CN102814388A (en) * | 2012-08-10 | 2012-12-12 | 芜湖金鹰机械科技开发有限公司 | Control device and control method used for slider lifting of high-speed notching press |
| CN103143766A (en) * | 2013-03-06 | 2013-06-12 | 苏州经贸职业技术学院 | Waste material separator |
| CN103433958A (en) * | 2013-08-19 | 2013-12-11 | 江苏通用科技股份有限公司 | Hydraulic cutting system of cutting machine |
| CN105003477A (en) * | 2015-06-19 | 2015-10-28 | 太原理工大学 | Motor cooperative control pilot-operated electro-hydraulic valve |
| CN105109079A (en) * | 2015-08-21 | 2015-12-02 | 浙江大学舟山海洋研究中心 | Hydraulic system of ultra-high-speed, large-stroke and large-tonnage punch press and working method of hydraulic system |
| CN109702952A (en) * | 2019-03-13 | 2019-05-03 | 浙江厚达智能科技股份有限公司 | Hydraulic punching head assembly |
| CN109702953A (en) * | 2019-03-13 | 2019-05-03 | 浙江厚达智能科技股份有限公司 | Medicine bag punch |
| CN113579196A (en) * | 2021-07-15 | 2021-11-02 | 伯乐智能装备有限公司 | Method for manufacturing light alloy modified product |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997002132A1 (en) * | 1995-07-06 | 1997-01-23 | Komatsu Ltd. | High-speed and high-load cylinder device and method for controlling the same |
| CN2537848Y (en) * | 2002-04-26 | 2003-02-26 | 张作武 | Double plunger hydraulic hammer |
-
2007
- 2007-01-05 CN CNB2007100262076A patent/CN100469480C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588393A (en) * | 2012-03-12 | 2012-07-18 | 山东法因数控机械股份有限公司 | High-speed punching hydraulic circuit of hydraulic punching machine |
| CN102814388A (en) * | 2012-08-10 | 2012-12-12 | 芜湖金鹰机械科技开发有限公司 | Control device and control method used for slider lifting of high-speed notching press |
| CN103143766A (en) * | 2013-03-06 | 2013-06-12 | 苏州经贸职业技术学院 | Waste material separator |
| CN103433958A (en) * | 2013-08-19 | 2013-12-11 | 江苏通用科技股份有限公司 | Hydraulic cutting system of cutting machine |
| CN103433958B (en) * | 2013-08-19 | 2015-09-23 | 江苏通用科技股份有限公司 | Cutting machine cut hydraulic system |
| CN105003477A (en) * | 2015-06-19 | 2015-10-28 | 太原理工大学 | Motor cooperative control pilot-operated electro-hydraulic valve |
| CN105109079A (en) * | 2015-08-21 | 2015-12-02 | 浙江大学舟山海洋研究中心 | Hydraulic system of ultra-high-speed, large-stroke and large-tonnage punch press and working method of hydraulic system |
| CN109702952A (en) * | 2019-03-13 | 2019-05-03 | 浙江厚达智能科技股份有限公司 | Hydraulic punching head assembly |
| CN109702953A (en) * | 2019-03-13 | 2019-05-03 | 浙江厚达智能科技股份有限公司 | Medicine bag punch |
| CN109702953B (en) * | 2019-03-13 | 2021-03-02 | 浙江厚达智能科技股份有限公司 | Medicine bag puncher |
| CN109702952B (en) * | 2019-03-13 | 2021-03-02 | 浙江厚达智能科技股份有限公司 | Hydraulic punch assembly |
| CN113579196A (en) * | 2021-07-15 | 2021-11-02 | 伯乐智能装备有限公司 | Method for manufacturing light alloy modified product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100469480C (en) | 2009-03-18 |
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