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CN108255209A - A kind of bender control method and system - Google Patents

A kind of bender control method and system Download PDF

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Publication number
CN108255209A
CN108255209A CN201711341216.4A CN201711341216A CN108255209A CN 108255209 A CN108255209 A CN 108255209A CN 201711341216 A CN201711341216 A CN 201711341216A CN 108255209 A CN108255209 A CN 108255209A
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China
Prior art keywords
processing mold
distance
distance parameter
stage
bender
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CN201711341216.4A
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Chinese (zh)
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CN108255209B (en
Inventor
杜佳成
贺东升
杨合跃
夏风
张磊
周浙天
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Phase Motion Control Solution Wuhan Co Ltd
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Phase Motion Control Solution Wuhan Co Ltd
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Priority to CN201711341216.4A priority Critical patent/CN108255209B/en
Publication of CN108255209A publication Critical patent/CN108255209A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D13/00Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
    • G05D13/62Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The present invention relates to a kind of bender control method and systems.Wherein method includes the following steps, monitors the remainder stroke distance Dis of processing mold;The control logic of the processing mold is set;The control logic includes, and according to the remainder stroke distance Dis, the processing mold is made to reach default running speed;The processing mold is controlled by the control logic.The present invention realizes the accurate monitoring to processing mold by grating scale, and passes through the control logic for monitoring the current location of processing mold there is provided processing mold.By control logic, the ring-closed, rapid of this production is realized, improves the efficiency of production.

Description

A kind of bender control method and system
Technical field
The present invention relates to sheet metal processing technology more particularly to a kind of bender control methods and system.
Background technology
The brake techniques of intermetallic composite coating, the scheme used at present have following several.
1) mode of hydraulic proportion valve liquid feeding pressure valve is controlled the flow direction of hydraulic oil by various valves, passes through proportional valve control Flow;2) asynchronous machine liquid feeding press pump adds the mode of valve, and the flow direction of hydraulic oil is controlled by valve, passes through asynchronous motor control hydraulic pressure The flow of pump, rotating speed more big flow are bigger;3) synchronous servo motor adds the mode of servopump, by the rotating speed for controlling servo motor Achieve the purpose that the flow of control servopump, rotating speed more big flow is bigger;4) directly pass through screw control machine using servo motor The lifting of structure.
But it is to process the process that processing mold runs to target point from starting point no matter using above-mentioned any mode In exert a force to sheet metal and complete processing, then be returned to starting point in order to be processed to next sheet metal, complete one A complete cycle.However, due to process processing mold current location information lack effectively, quick processing scheme, The operating flow of the processing of above-mentioned sheet metal is difficult to form closing, quickly cycle.
Invention content
It is an object of the present invention to provide a kind of a kind of bender control method for sheet metal to be controlled to process and it is System.
The technical solution that the present invention solves above-mentioned technical problem is as follows:
In a first aspect, the present invention proposes a kind of bender control method, include the following steps:
Monitor the remainder stroke distance D i s of processing mold;
The control logic of the processing mold is set;The control logic includes, according to the remainder stroke distance Dis, The processing mold is made to reach default running speed;
The processing mold is controlled by the control logic.
Further, it is described according to the remainder stroke distance Dis, the processing mold is made to reach default running speed packet It includes:
Compare the magnitude relationship of the remainder stroke distance Dis and pre-determined distance parameter;The distance parameter includes:First Distance parameter limit1, second distance parameter limit2, third distance parameter limit3;Wherein described first distance parameter limit1>The second distance parameter limit2>The third distance parameter limit3;The first distance parameter limit1, The stroke that the second distance parameter limit2 and third distance parameter limit3 separates the processing mold is four-stage;
First stage as remainder stroke distance Dis >=the first distance limit1, sets the processing mold Default running speed be maximum speed;
Phase III, as the second distance limit2>The remainder stroke distance Dis >=third distance parameter During limit3;The default running speed for setting the processing mold is low speed speed;
Fourth stage, as the remainder stroke distance Dis<During the third distance limit3, the processing mold is set Default running speed be 0;
Wherein t is the duration into the second stage, Kp、KiFor cause the head and the tail speed of the second stage with The first stage speed, the phase III velocity variations are connected smooth constant.
Further, it is further included before the control logic of the setting processing mold, calculates the processing mold Total kilometres distance, the total kilometres distance include pressing plate position total kilometres distance D pressures and bending position total kilometres distance D foldings;
When the processing mold is in pressing plate position,
The first distance parameter limit1=0.5D pressures;
The second distance parameter limit2=0.125D pressures;
The third distance parameter limit3=0.001mm;
When the processing mold is in bending position;
The first distance parameter limit1=0.125D foldings;
The second distance parameter limit2=0.0625D foldings;
The third distance parameter limit3=0.001mm.
Further, the control logic further includes, when in the first stage, the phase III and described During four stages, the processing mold is made to reach default running speed by predetermined acceleration.
Further, it further includes before the control logic of the setting processing mold, is obtained by calculating or testing Meeting makes the predetermined acceleration of following acceleration condition:
The acceleration condition is included when in the fourth stage, and the predetermined acceleration of the processing mold causes institute The rear detent mechanism for stating bender is not shaken.
Further, the acceleration condition further includes, when in the first stage, the acceleration of the processing mold Duration is less than or equal to 120ms;
When in the phase III, the fourth stage;The acceleration duration of the processing mold is less than or equal to 80ms。
Second aspect, the invention also provides a kind of bender control systems.
A kind of bender control system, the processing mold including being used to process sheet metal, the system comprises for adding The processing mold of work sheet metal, the servo motor, current for monitoring the processing mold for driving the processing mold The monitoring device of position, the driver for controlling the servo motor;
The driver is electrically connected respectively with the monitoring device and the servo motor;The driver is used to store Aforementioned control logic.
The monitoring device is grating scale.
The driver includes auxiliary coder interface, and the driver passes through the auxiliary coder interface and the light Grid ruler is electrically connected.
The present invention realizes the accurate monitoring to processing mold by grating scale, and passes through the current location for monitoring processing mold There is provided the control logics of processing mold.By control logic, the ring-closed, rapid of this production is realized, improves life The efficiency of production.
Description of the drawings
Fig. 1 is bender operating diagram in the present invention;
Fig. 2 is the flow diagram of the bender control method of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1 processing mold;Detent mechanism after 2;3 cutters;4 grating scales;5 sheet metals.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, sheet metal 5 is by rear 2 clamping position of detent mechanism, then by fixed cutter 3 and removable Dynamic processing mold 1 carries out force processing to sheet metal 5.Wherein processing mold 1 is provided with the structure of V-groove for one end.V-type Slot is used to make being improved relative to the existing control method to wherein processing mold 1 for the present invention.
It is divided into pressing plate position and bending position two states during usual bender work.Its center platen position is that processing mold 1 pushes Metallic plate can calculate pressure until the process being in contact with cutter 3 by the height of processing mold 1 itself and the plate thickness of metallic plate The total kilometres distance D pressures of plate position;And bending position is mutually connected with pressing plate position, connects for metallic plate with cutter 3 and contacts completion to metal The course of work of plate bending;By the angle of processing mold 1 and the plate bending moment of metallic plate from can calculate the total kilometres of pressing plate position away from It is rolled over from D.
D obtained by calculation is pressed, D foldings;It is arranged on the pressing plate position distance parameter different with bending position, wherein processing mold 1 be in pressing plate position when
First distance parameter limit1=0.5D is pressed;
Second distance parameter limit2=0.125D is pressed;
Third distance parameter limit3=0.001mm;
And processing mold 1 is when being in bending position;
First distance parameter limit1=0.125D rolls over;
Second distance parameter limit2=0.0625D rolls over;
Third distance parameter limit3=0.001mm.
Pressing plate position stroke and bending position stroke are divided by four-stage by above-mentioned distance parameter respectively.
Bender control method in the present invention, specifically includes following work step:
S1, the remainder stroke distance Dis for monitoring processing mold 1;
The control logic of S2, the setting processing mold 1;The control logic includes, according to the remainder stroke distance Dis makes the processing mold 1 reach default running speed;
S3, the processing mold 1 is controlled by the control logic.
The control logic includes,
First stage as remainder stroke distance Dis >=the first distance limit1, sets the processing mold 1 default running speed is maximum speed;In actual production, the rotating speed control of the motor of processing mold 1 is driven to add by control The speed of tool and mould 1, the rotating speed of maximum speed, that is, corresponding servo motor, interior industry is usually 1800rpm or 1500rpm;
Second stage, as the first distance limit1>The remainder stroke distance Dis >=second distance parameter During limit2;The default running speed for setting the processing mold 1 isWherein t be into Enter the duration of the second stage, Kp、KiFor cause the head and the tail speed of the second stage and the first stage speed, The phase III velocity variations are connected smooth constant.
When wherein having just enter into second stage, speed keeps consistent with the first stage, and at this timeAnd Dis= Limit1, KpCounter push away can obtain;Correspondingly, speed when speed is the phase III during position of second stage end, it is known that KpIt can calculate Obtain KiNumerical value.
Phase III, as the second distance limit2>The remainder stroke distance Dis >=third distance parameter During limit3;The default running speed for setting the processing mold 1 is low speed speed;Similarly, low speed speed corresponds to servo Motor speed 100rpm.
Fourth stage, as the remainder stroke distance Dis<During the third distance limit3, the processing mold 1 is set Default running speed be 0.
Through the above scheme, the first stage is the boost phase of processing mold 1, and acceleration is just consistent with directional velocity; Second, third, the decelerating phase that fourth stage is processing mold 1, acceleration is negative i.e. opposite with directional velocity.
In fact, after the fourth stage of bending position, processing mold 1 completes the processing to one piece of sheet metal 5, opens Beginning reverse movement, which is back to, to be started to home position to be processed to next piece of sheet metal 5.This return trip is to gold The quality influence for belonging to plank 5 is smaller, not in the range of the discussion of the present invention.
Preferably, acceleration used when default running speed is obtained in each and every one above-mentioned several stages is further set.
Wherein described acceleration condition is included when in the fourth stage, the predetermined acceleration of the processing mold 1 So that the rear detent mechanism 2 of bender is not shaken.
The acceleration condition further includes, when in the first stage, the acceleration duration of the processing mold 1 Less than or equal to 120ms;
When in the phase III, the fourth stage;The acceleration duration of the processing mold 1 is less than or equal to 80ms.Acceleration is set in this way, under the premise of the processing efficiency to sheet metal 5 that the present invention can be improved, is avoided excessive Accelerate, shake and the processing quality of sheet metal 5 is impacted.
To realize above-mentioned control method, the present invention proposes a kind of bender control system, metallic plate is processed including being used for The processing mold 1 of material 5, system are included for processing the processing mold 1 of sheet metal 5, for driving the servo of processing mold 1 electric Machine, the monitoring device for monitoring 1 current location of processing mold, the driver for controlling servo motor;
Driver is electrically connected respectively with monitoring device and servo motor;Driver is used to store aforementioned control logic.
Monitoring device is grating scale 4.
Driver includes auxiliary coder interface, and driver is electrically connected by auxiliary coder interface with grating scale 4.Pass through Include the driver of auxiliary coder interface so that the data transmission bauds between grating scale 4 and driver faster, obtained reality The hardware requirement of existing closed loop.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ", " specific example " or The description of " some examples " etc. means that combining specific method, device or feature that the embodiment or example describe is contained in this hair In bright at least one embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to Identical embodiment or example.Moreover, specific features, method, apparatus or the feature of description can be in any one or more realities It applies and is combined in an appropriate manner in example or example.In addition, without conflicting with each other, those skilled in the art can incite somebody to action The feature of different embodiments or examples and different embodiments or examples described in this specification is combined.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (9)

1. a kind of bender control method, which is characterized in that include the following steps:
Monitor the remainder stroke distance Dis of processing mold;
The control logic of the processing mold is set;The control logic includes, and according to the remainder stroke distance Dis, makes institute It states processing mold and reaches default running speed;
The processing mold is controlled by the control logic.
2. bender control method according to claim 1, which is characterized in that
It is described according to the remainder stroke distance Dis, the processing mold is made to reach default running speed and is included:
Compare the magnitude relationship of the remainder stroke distance Dis and pre-determined distance parameter;The distance parameter includes:First distance Parameter limit1, second distance parameter limit2, third distance parameter limit3;Wherein described first distance parameter limit1> The second distance parameter limit2>The third distance parameter limit3;The first distance parameter limit1, described second The stroke that distance parameter limit2 and third distance parameter limit3 separates the processing mold is four-stage;
First stage as remainder stroke distance Dis >=the first distance limit1, sets the pre- of the processing mold If running speed is maximum speed;
Second stage, as the first distance limit1>The remainder stroke distance Dis >=second distance parameter limit2 When;The default running speed for setting the processing mold is
Phase III, as the second distance limit2>The remainder stroke distance Dis >=third distance parameter limit3 When;The default running speed for setting the processing mold is low speed speed;
Fourth stage, as the remainder stroke distance Dis<During the third distance limit3, the pre- of the processing mold is set If running speed is 0;
Wherein t is the duration into the second stage, Kp、KiFor cause the head and the tail speed of the second stage with it is described First stage speed, the phase III velocity variations are connected smooth constant.
3. bender control method according to claim 2, which is characterized in that
It is further included before the control logic of the setting processing mold, calculates the total kilometres distance of the processing mold, institute It states total kilometres distance and includes pressing plate position total kilometres distance D pressures and bending position total kilometres distance D foldings;
When the processing mold is in pressing plate position,
The first distance parameter limit1=0.5D pressures;
The second distance parameter limit2=0.125D pressures;
The third distance parameter limit3=0.001mm;
When the processing mold is in bending position;
The first distance parameter limit1=0.125D foldings;
The second distance parameter limit2=0.0625D foldings;
The third distance parameter limit3=0.001mm.
4. the bender control method according to Claims 2 or 3, which is characterized in that
The control logic further includes, and when in the first stage, the phase III and the fourth stage, passes through Predetermined acceleration makes the processing mold reach default running speed.
5. bender control method according to claim 4, which is characterized in that
It is further included before the control logic of the setting processing mold, makes to accelerate as follows by calculating or testing to obtain to meet The predetermined acceleration of degree condition:
The acceleration condition is included when in the fourth stage, and the predetermined acceleration of the processing mold causes the folding The rear detent mechanism of bender is not shaken.
6. bender control method according to claim 5, which is characterized in that
The acceleration condition further includes, and when in the first stage, the acceleration duration of the processing mold is less than Equal to 120ms;
When in the phase III, the fourth stage;The acceleration duration of the processing mold is less than or equal to 80ms.
7. a kind of bender control system, which is characterized in that
The system comprises for process sheet metal processing mold, for drive the servo motor of the processing mold, use Monitoring device in the monitoring processing mold current location, the driver for controlling the servo motor;
The driver is electrically connected respectively with the monitoring device and the servo motor;The driver is additionally operable to storage simultaneously Control the control method described in the servo motor perform claim requirement 1-6.
8. bender control system according to claim 7, which is characterized in that the monitoring device is grating scale.
9. bender control system according to claim 8, which is characterized in that the driver connects including auxiliary coder Mouthful, the driver is electrically connected by the auxiliary coder interface with the grating scale.
CN201711341216.4A 2017-12-14 2017-12-14 Bending machine control method and system Active CN108255209B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN108255209B CN108255209B (en) 2020-12-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109772945A (en) * 2019-01-15 2019-05-21 武汉菲仕运动控制系统有限公司 A kind of bending machine closed-loop electro-hydraulic servo driving method and system
CN111842556A (en) * 2020-07-14 2020-10-30 深圳市汇川技术股份有限公司 Bending machine spindle speed control method, bending machine and readable storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000293707A (en) * 1999-03-30 2000-10-20 Internatl Business Mach Corp <Ibm> Method and device for adapting curved surface to point- set
CN1714965A (en) * 2004-06-28 2006-01-04 发那科株式会社 Servo motor control unit for press-forming machine
JP2009252220A (en) * 2008-04-04 2009-10-29 Kyotaka Kawanishi Input device
CN102866665A (en) * 2012-09-27 2013-01-09 华南理工大学 Multi-axial synchronous control system and method for all-electric bending machine
CN103111500A (en) * 2013-02-26 2013-05-22 昆山市天之衣精工机械设备有限公司 Electric bending machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000293707A (en) * 1999-03-30 2000-10-20 Internatl Business Mach Corp <Ibm> Method and device for adapting curved surface to point- set
CN1714965A (en) * 2004-06-28 2006-01-04 发那科株式会社 Servo motor control unit for press-forming machine
JP2009252220A (en) * 2008-04-04 2009-10-29 Kyotaka Kawanishi Input device
CN102866665A (en) * 2012-09-27 2013-01-09 华南理工大学 Multi-axial synchronous control system and method for all-electric bending machine
CN103111500A (en) * 2013-02-26 2013-05-22 昆山市天之衣精工机械设备有限公司 Electric bending machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109772945A (en) * 2019-01-15 2019-05-21 武汉菲仕运动控制系统有限公司 A kind of bending machine closed-loop electro-hydraulic servo driving method and system
CN111842556A (en) * 2020-07-14 2020-10-30 深圳市汇川技术股份有限公司 Bending machine spindle speed control method, bending machine and readable storage medium
CN111842556B (en) * 2020-07-14 2022-04-26 深圳市汇川技术股份有限公司 Bending machine spindle speed control method, bending machine and readable storage medium

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