CN200998740Y - Numerical control electric-hydraulic servo lead bender - Google Patents

Numerical control electric-hydraulic servo lead bender Download PDF

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Publication number
CN200998740Y
CN200998740Y CNU2006201708827U CN200620170882U CN200998740Y CN 200998740 Y CN200998740 Y CN 200998740Y CN U2006201708827 U CNU2006201708827 U CN U2006201708827U CN 200620170882 U CN200620170882 U CN 200620170882U CN 200998740 Y CN200998740 Y CN 200998740Y
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CN
China
Prior art keywords
oil pump
way
servo
control
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2006201708827U
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Chinese (zh)
Inventor
李鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jinfangyuan CNC Machine Co Ltd
Original Assignee
Jiangsu Jinfangyuan CNC Machine Co Ltd
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Filing date
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Application filed by Jiangsu Jinfangyuan CNC Machine Co Ltd filed Critical Jiangsu Jinfangyuan CNC Machine Co Ltd
Priority to CNU2006201708827U priority Critical patent/CN200998740Y/en
Application granted granted Critical
Publication of CN200998740Y publication Critical patent/CN200998740Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a numerically controlled electro-hydraulic servo bus bending machine, which belongs to the bending machine field. The machine comprises a control system, a servo drive module, an oil pump, a hydraulic actuating system and an electronic angle sensor, wherein the control system transmits a control signal to the servo drive module which drives the motor of oil pump to rotate, the oil pump drives the hydraulic actuating system to be operated forward or backward, the electronic angle sensor detects the bending angle signal of a workpiece and transmits the signal to the control system, the control system provides a re-bending signal for re-bending, the hydraulic actuating system comprises a bidirectional cylinder, a bending die are arranged at the end of the piston rod of the bidirectional cylinder, the oil pump is a bidirectional constant displacement oil pump, both ends of the bidirectional cylinder are respectively connected the inlet and the outlet of the bidirectional constant displacement oil pump, the oil drainage outlet of the bidirectional constant displacement oil pump is connected with an oil tank through an oil discharge one-way valve, and the oil tank is respectively connected with the inlet and the outlet of the bidirectional oil pump through two oil suction one-way valves. The utility model has the advantages of low heat production, low noise, high efficiency, thereby being applied to the bending processing of mechanical components.

Description

The servo bus bender of numerical control electrohydraulic
Technical field
The utility model relates to a kind of bus bender, the particularly control system of bus bender.
Background technology
In the prior art, the servo bus bender of a kind of numerical control electrohydraulic is arranged, comprise control system, servo-driven module, oil pump, hydraulic executing system and electronics angular transducer, control system passes to servo-driven module with control signal, the revolution of oil pump provides pressure oil for hydraulic executing system, servo-driven module control hydraulic executing system worker advances, return and stop, the electronics angular transducer detects the bending angle signal of workpiece and passes to control system, control system provides multiple folding signal and carries out multiple folding, its hydraulic executing system mainly includes two-way cylinder, the piston rod end of two-way cylinder is provided with Bending Mould, the two ends of two-way cylinder are connected in the outlet of oil pump respectively via the switching valve of servo-driven module control, the oil return of two-way cylinder is connected fuel tank through switching valve, and the outlet of oil pump also is provided with the overflow valve of connecting fuel tank.During work, servo-driven module drives the switching valve action, makes the logical oil pump outlet of a side joint of two-way cylinder, and opposite side is connected tank drainback, and hydraulic oil promotes the mould bending workpieces or makes mould and workpiece is separated; When needs stop mold actions, by controlling the turnover oil that switching valve cuts out the two ends of two-way cylinder, at this moment, oil pump does not stop, and its outlet pressure raises, open overflow valve to tank drainback, Oil pump electrical machinery is worked all the time, and just hydraulic circuit is in unloaded unloading condition, the power consumption that system's meeting causes because of oil circuit throttling, heating, motor rotation, its noise is bigger, and efficient is relatively low; In addition, the valve in the hydraulic executing system is relatively more responsive to greasy dirt, easily because of the greasy dirt jam.
The utility model content
The purpose of this utility model is providing a kind of numerical control electrohydraulic servo bus bender, and its oil piping system is difficult for heating, and noise is little, the efficient height.
For achieving the above object, the servo bus bender of the numerical control electrohydraulic that the utility model provides, comprise control system, servo-driven module, oil pump, hydraulic executing system and electronics angular transducer, control system passes to servo-driven module with control signal, servo-driven module drives the revolution of oil pump, oil pump driving hydraulic executing system worker advances or returns, the electronics angular transducer detects the bending angle signal of workpiece and passes to control system, control system provides multiple folding signal and carries out multiple folding, described hydraulic executing system comprises two-way cylinder, the piston rod end of two-way cylinder is provided with Bending Mould, and described oil pump is two-way quantitative oil pump; The two ends of two-way cylinder connect two import and export of two-way quantitative oil pump respectively, and the drain tap of two-way quantitative oil pump is connected fuel tank through the draining check valve, and fuel tank is connected two import and export of two-way quantitative oil pump respectively through two repairing check valves.
During work, hydraulic executing system is subjected to the control of two-way quantitative oil pump, makes an end oil-feed of two-way cylinder, and corresponding other end oil return also directly supplies two-way quantitative oil pump oil-feed, and piston action is finished bending or made the mould separating workpiece; During the oil circuit oil starvation, suction one end of two-way quantitative oil pump can be through the repairing check valve from the fuel tank repairing, when the needs piston stops to move, control system is sent instruction, and the motor of controlling two-way quantitative oil pump through servo-driven module stops operating, and motor does not need the unloading operation, therefore, the consumption that oil circuit does not have throttling heating and motor unloading operation to cause, its noise is little, the efficient height.The utility model has low energy consumption, low noise, high efficiency advantage as the bus bender, can be applicable to the Bending Processing of component of machine.
Be protection two-way cylinder and respective line, import and export on the pipeline at two of two-way quantitative oil pump and respectively be provided with an overflow valve that two overflow valves are connected fuel tank.Overflow valve plays the high voltage protective effect, when faults such as piston jam or spool jam make system high pressure, can avoid workpiece to damage by overflow valve to the fuel tank draining.
Two repairing check valves can be hydraulic control one-way valve, the port of export of another hydraulic control one-way valve of control termination of arbitrary hydraulic control one-way valve.Like this at two-way quantitative oil pump in a side two-way cylinder during oiling, the control end of the hydraulic control one-way valve that communicates with this side cylinder oil circuit is opened the hydraulic control one-way valve of two-way cylinder oil return one side, can make oil circuit oil return and repairing more unobstructed.
Description of drawings
Fig. 1 is the utility model fundamental diagram;
Wherein, 1 motor, 2 two-way quantitative oil pumps, 3 draining check valves, 4,5 repairing check valves, 6,7 overflow valves, 8 two-way cylinders, 9 pressure sensors, 10 electronics angular transducers, 11 control systems, 12 servo-driven modules, 13 Bending Moulds, 14 fuel tanks.
The specific embodiment
As figure, the servo bus bender of numerical control electrohydraulic, comprise control system 11, servo-driven module 12, two-way quantitative oil pump 2, hydraulic executing system and electronics angular transducer 10, control system 11 passes to servo-driven module 12 with control signal, the motor 1 that servo-driven module 12 drives two-way quantitative oil pump 2 rotates, two-way quantitative oil pump 2 driving hydraulic executing system workers advance or return, electronics angular transducer 10 detects the bending angle signal of workpiece and passes to control system 11, control system 11 provides multiple folding signal and carries out multiple folding, described hydraulic executing system comprises two-way cylinder 8, the piston rod end of two-way cylinder 8 is provided with Bending Mould 13, the two ends of two-way cylinder 8 connect two import and export of two-way quantitative oil pump 2 respectively, the drain tap of two-way quantitative oil pump 2 is connected fuel tank 14 through draining check valve 3, fuel tank 14 is through two repairing check valves 4,5 connect two import and export of two-way quantitative oil pump 2 respectively, two repairing check valves 4,5 is hydraulic control one-way valve, the port of export of another hydraulic control one-way valve of control termination of arbitrary hydraulic control one-way valve; Two of two-way quantitative oil pump 2 is imported and exported respectively and is connected fuel tank 14 through two overflow valves 6,7, can be by overflow valve 6,7 to fuel tank 14 oil returns when high pressure.The motor 1 of two-way quantitative oil pump 2 can feed back to control system 11 through servo-driven module 12 with turn signal, and control system 11 relatively is compensated signal with this feedback signal and setting signal and passes to the motor 1 of two-way quantitative oil pump 2 once more through servo-driven module 12 to carry out closed-loop control; On the oil circuit of hydraulic executing system pressure sensor 9 can also be set, this pressure sensor 9 is given control system 11 with pressure signal transmission, control system 11 is with the pressure signal contrast of this pressure signal and setting, when the pressure signal that receives was higher than the pressure signal of setting, control system 11 was sent stop signal passes to two-way quantitative oil pump 2 through servo-driven module 12 motor 1.
During work, control system 11 passes to servo-driven module 12 with control signal, the motor 1 that servo-driven module 12 drives two-way quantitative oil pump 2 rotates, two-way quantitative oil pump 2 driving hydraulic executing system workers advance or return, electronics angular transducer 10 detects the bending angle signal of workpiece and passes to control system 11, when reaching default bending angle, control system 11 is sent motor 1 backward rotation of control signal through the two-way quantitative oil pump 2 of servo-driven module 12 drivings, and the piston of two-way cylinder 8 is return; Electronics angular transducer 10 detects the bending angle signal of workpiece once more and passes to control system 11, control system 11 is determined the springback compensation angle and will be rolled over signal passes to two-way quantitative oil pump 2 through servo-driven module 12 motor 1 again according to the size of twice angle signal, driving hydraulic executing system worker is once more advanced, electronics angular transducer 10 passes to control system 11 once more with the bending angle signal, after reaching the multiple knuckle degree of setting, control system 11 through motor 1 backward rotation of the two-way quantitative oil pump 2 of servo-driven module 12 controls, is ordered about hydraulic executing system and is return once more.Hydraulic executing system is subjected to the control of two-way quantitative oil pump 2, makes an end oil-feed of two-way cylinder 8, and corresponding other end oil return also directly supplies two-way quantitative oil pump 2 oil-feeds, and piston action is finished bending or made the mould separating workpiece; During the oil circuit oil starvation, suction one end of two-way quantitative oil pump 2 can be through repairing check valve 4,5 from fuel tank 14 repairings, and when the needs piston stopped to move, control system 11 was sent instruction, motor 1 through the two-way quantitative oil pump 2 of servo-driven module 12 controls stops operating, and motor does not need the unloading operation.

Claims (3)

1, the servo bus bender of numerical control electrohydraulic, comprise control system, servo-driven module, oil pump, hydraulic executing system and electronics angular transducer, control system passes to servo-driven module with control signal, servo-driven module drives the revolution of oil pump, oil pump driving hydraulic executing system worker advances or returns, the electronics angular transducer detects the bending angle signal of workpiece and passes to control system, control system provides multiple folding signal and carries out multiple folding, described hydraulic executing system comprises two-way cylinder, the piston rod end of two-way cylinder is provided with Bending Mould, and it is being characterised in that: described oil pump is two-way quantitative oil pump; The two ends of two-way cylinder connect two import and export of two-way quantitative oil pump respectively, and the drain tap of two-way quantitative oil pump is connected fuel tank through the draining check valve, and fuel tank is connected two import and export of two-way quantitative oil pump respectively through two repairing check valves.
2, the servo bus bender of numerical control electrohydraulic according to claim 1, it is being characterised in that: two of two-way quantitative oil pump is imported and exported respectively and is connected fuel tank through two overflow valves.
3, the servo bus bender of numerical control electrohydraulic according to claim 1 and 2, it is being characterised in that: described two repairing check valves are hydraulic control one-way valve, the port of export of another hydraulic control one-way valve of control termination of each hydraulic control one-way valve.
CNU2006201708827U 2006-12-31 2006-12-31 Numerical control electric-hydraulic servo lead bender Expired - Fee Related CN200998740Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201708827U CN200998740Y (en) 2006-12-31 2006-12-31 Numerical control electric-hydraulic servo lead bender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201708827U CN200998740Y (en) 2006-12-31 2006-12-31 Numerical control electric-hydraulic servo lead bender

Publications (1)

Publication Number Publication Date
CN200998740Y true CN200998740Y (en) 2008-01-02

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101463849B (en) * 2009-01-12 2012-05-16 天水锻压机床有限公司 Hydraulic electrohydraulic ratio control system and method for prebending machine
CN103264521A (en) * 2013-05-22 2013-08-28 东北大学 Integrated type energy-saving and environment-friendly hydraulic servo system
CN103827509A (en) * 2011-11-07 2014-05-28 住友重机械工业株式会社 Closed hydraulic circuit system
CN105402200A (en) * 2015-12-29 2016-03-16 沈阳东北电力调节技术有限公司 Integrated electro hydraulic control device
CN105422971A (en) * 2015-12-29 2016-03-23 沈阳东北电力调节技术有限公司 Integrated electric-hydraulic adjustment device
CN109778749A (en) * 2019-01-21 2019-05-21 湖南纽恩驰新能源车辆有限公司 A kind of cleaning vehicle control and sweeper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101463849B (en) * 2009-01-12 2012-05-16 天水锻压机床有限公司 Hydraulic electrohydraulic ratio control system and method for prebending machine
CN103827509A (en) * 2011-11-07 2014-05-28 住友重机械工业株式会社 Closed hydraulic circuit system
CN103827509B (en) * 2011-11-07 2016-04-20 住友重机械工业株式会社 Hydraulic pressure closed-loop system
CN103264521A (en) * 2013-05-22 2013-08-28 东北大学 Integrated type energy-saving and environment-friendly hydraulic servo system
CN105402200A (en) * 2015-12-29 2016-03-16 沈阳东北电力调节技术有限公司 Integrated electro hydraulic control device
CN105422971A (en) * 2015-12-29 2016-03-23 沈阳东北电力调节技术有限公司 Integrated electric-hydraulic adjustment device
CN109778749A (en) * 2019-01-21 2019-05-21 湖南纽恩驰新能源车辆有限公司 A kind of cleaning vehicle control and sweeper

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080102

Termination date: 20121231