CN109719402A - A kind of bracket control mechanism for special-shaped workpiece processing - Google Patents
A kind of bracket control mechanism for special-shaped workpiece processing Download PDFInfo
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- CN109719402A CN109719402A CN201811634709.1A CN201811634709A CN109719402A CN 109719402 A CN109719402 A CN 109719402A CN 201811634709 A CN201811634709 A CN 201811634709A CN 109719402 A CN109719402 A CN 109719402A
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Abstract
The invention discloses a kind of bracket control mechanisms for special-shaped workpiece processing, it is related to laser cutting field, the control mechanism includes bracket and pulse transmitter, the pulse transmitter is used to acquire the pulse signal of special-shaped workpiece rotation, servo motor is provided on the bracket, the servo motor is connect with PLC, and the PLC is used to receive and handle the pulse signal of the pulse transmitter acquisition, lifts special-shaped workpiece by Serve Motor Control bracket according to processing result.PLC obtains the live signal of special-shaped workpiece rotation according to pulse transmitter, and the height that special-shaped workpiece currently needs to lift is calculated according to the signal, control bracket lifts special-shaped workpiece, so that special-shaped workpiece is in real time by the state of bracket support, avoid special-shaped workpiece sagging due to self gravity generation, and then the precision of special-shaped workpiece processing is improved, avoid main card disk and center chuck impaired.
Description
Technical field
The present invention relates to laser cutting fields, and in particular to a kind of bracket control mechanism for special-shaped workpiece processing.
Background technique
The special-shaped special-shaped workpiece that laser pipe cutter is 3 to 10 meters in Cutting Length, such as square, rectangle special-shaped workpiece
When, main card disk and center chuck are usually rotated with 25~60 rpms, still, in rotary course, due to special-shaped work
The distance between the outside of part and special-shaped workpiece center be not identical, in order to avoid special-shaped workpiece and bracket collide, is rotating
In the process, the bracket that usually control is used to support special-shaped workpiece drops to extreme lower position, but the setting meeting is so that special-shaped workpiece
Sometimes in the state of not bracket support in cutting process, special-shaped workpiece can be sent out due to the gravity of itself in this state
The shape that changes is sagging, and the machining accuracy for not only resulting in special-shaped workpiece is poor, and the product processed is difficult to reach technique requirement, and
And it is impaired to will lead to main card disk and center chuck.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of supports for special-shaped workpiece processing
Frame control mechanism can be improved the machining accuracy of special-shaped workpiece, avoid main card disk and center chuck impaired.
To achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of bracket control mechanism for special-shaped workpiece processing, including bracket and pulse transmitter, the pulse pick-up
Device is used to acquire the pulse signal of special-shaped workpiece rotation, and servo motor is provided on the bracket, and the servo motor and PLC connect
It connects, the PLC is used to receive and handle the pulse signal of the pulse transmitter acquisition, passes through servo motor according to processing result
Control bracket lifts special-shaped workpiece;
The control method of the control mechanism the following steps are included:
S1, pulse transmitter acquire the pulse signal of special-shaped workpiece rotation and are sent to PLC;
S2, PLC calculate the distance H of bracket rise/fall, and H is calculated according to the following formula:
H is the larger value in h1 and h2;
Wherein, a is the length of special-shaped workpiece, and b is the width of special-shaped workpiece, and r is the fillet of special-shaped workpiece, and o is special-shaped work
The angle of part currently rotated is o, o1For special-shaped workpiece initial placement angle;
Further, the height H that lifts can also be calculated according to the following formula:
When -360 °≤θ≤- 270 °, H=r × sin (θ+o)-x/2;
When -270 °≤θ≤- 180 °, H=-r × sin (o- θ)-y/2;
When -180 °≤θ≤- 90 °, H=-r × sin (θ+o)-x/2;
When -90 °≤θ≤0 °, H=r × sin (o- θ)-y/2;
When 0 °≤θ≤90 °, H=r × sin (θ+o)-y/2;
When 90 °≤θ≤180 °, H=r × sin (θ-o)-x/2;
When 180 °≤θ≤270 °, H=-r × sin (θ+o)-y/2;
When 270 °≤θ≤360 °, H=-r × sin (θ-o)-x/2;
Wherein, x is the length of current special-shaped workpiece, and y is the width of current special-shaped workpiece, and r is that current special-shaped workpiece is diagonal
The length of line, angle of the θ between diagonal line and horizontal plane.
Further, the control mechanism further includes HMI, and the HMI is connected with PLC.
Further, the special-shaped workpiece is rectangle.
Further, the bracket is located between the main card disk and center chuck of laser cutting machine.
Compared with the prior art, the advantages of the present invention are as follows:
(1) the bracket control mechanism in the present invention for special-shaped workpiece processing, by pulse transmitter for acquiring abnormity
The pulse signal of workpiece rotation is provided with servo motor on bracket, and servo motor is connect with PLC, and PLC is for receiving and handling arteries and veins
The pulse signal for rushing transmitter acquisition, lifts special-shaped workpiece by Serve Motor Control bracket according to processing result, PLC is according to arteries and veins
The live signal that transmitter obtains special-shaped workpiece rotation is rushed, and the height that special-shaped workpiece currently needs to lift is calculated according to the signal
Degree, control bracket lift special-shaped workpiece, so that special-shaped workpiece is in real time by the state of bracket support, avoid special-shaped work
Part avoids main card disk and center chuck impaired since precision that is sagging, and then improving special-shaped workpiece processing occurs for self gravity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that special-shaped workpiece rotates clockwise in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram that special-shaped workpiece rotates counterclockwise in the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention provides a kind of bracket control mechanism for special-shaped workpiece processing, including bracket, pulse pick-up
Device, PLC (Programmable Logic Controller, programmable logic controller (PLC)) and HMI (Human Machine
Interface, man-machine interface), HMI is connected with PLC, and pulse transmitter is used to acquire the pulse signal of special-shaped workpiece rotation,
Servo motor is provided on bracket, servo motor is connect with PLC, and PLC is used to receive and handle the pulse of pulse transmitter acquisition
Signal lifts special-shaped workpiece by Serve Motor Control bracket according to processing result;Special-shaped workpiece is rectangular tube in the present embodiment
Material, bracket are located between the main card disk and center chuck of laser cutting machine.
The control method of the control mechanism the following steps are included:
S1, pulse transmitter acquire the pulse signal of special-shaped workpiece rotation and are sent to PLC;
S2, PLC calculate the distance H of bracket rise/fall, and H is calculated according to the following formula:
H is the larger value in h1 and h2.
Wherein, a is the length of special-shaped workpiece, and b is the width of special-shaped workpiece, and r is the fillet of special-shaped workpiece, and o is special-shaped work
The angle of part currently rotated is o, o1For special-shaped workpiece initial placement angle;
H can also be calculated according to the following formula:
When -360 °≤θ≤- 270 °, H=r × sin (θ+o)-x/2;
When -270 °≤θ≤- 180 °, H=-r × sin (o- θ)-y/2;
When -180 °≤θ≤- 90 °, H=-r × sin (θ+o)-x/2;
When -90 °≤θ≤0 °, H=r × sin (o- θ)-y/2;
When 0 °≤θ≤90 °, H=r × sin (θ+o)-y/2;
When 90 °≤θ≤180 °, H=r × sin (θ-o)-x/2;
When 180 °≤θ≤270 °, H=-r × sin (θ+o)-y/2;
When 270 °≤θ≤360 °, H=-r × sin (θ-o)-x/2;
Wherein, x is the length of current special-shaped workpiece, and y is the width of current special-shaped workpiece, and r is that current special-shaped workpiece is diagonal
The length of line, (when special-shaped workpiece rotates clockwise, θ is positive number to angle of the θ between diagonal line and horizontal plane;When special-shaped work
When part rotates counterclockwise, θ is negative), o is the angle of special-shaped workpiece current operation.
The present invention is not only limited to above-mentioned preferred forms, anyone can show that other are each under the inspiration of the present invention
The product of kind form, however, make any variation in its shape or structure, it is all with identical or similar with the present invention
Technical solution, within its protection scope.
Claims (5)
1. a kind of bracket control mechanism for special-shaped workpiece processing, it is characterised in that: described including bracket and pulse transmitter
Pulse transmitter is used to acquire the pulse signal of special-shaped workpiece rotation, and servo motor, the servo electricity are provided on the bracket
Machine is connect with PLC, and the PLC is used to receive and handle the pulse signal of the pulse transmitter acquisition, logical according to processing result
It crosses Serve Motor Control bracket and lifts special-shaped workpiece;
The control method of the control mechanism the following steps are included:
S1, pulse transmitter acquire the pulse signal of special-shaped workpiece rotation and are sent to PLC;
S2, PLC calculate the distance H of bracket rise/fall, and H is calculated according to the following formula:
H is the larger value in h1 and h2;
Wherein, a is the length of special-shaped workpiece, and b is the width of special-shaped workpiece, and r is the fillet of special-shaped workpiece, and o is special-shaped workpiece
The angle currently rotated is o, o1For special-shaped workpiece initial placement angle.
2. a kind of bracket control mechanism for special-shaped workpiece processing as described in claim 1, it is characterised in that: described to lift
Height H can also be calculated according to the following formula:
When -360 °≤θ≤- 270 °, H=r × sin (θ+o)-x/2;
When -270 °≤θ≤- 180 °, H=-r × sin (o- θ)-y/2;
When -180 °≤θ≤- 90 °, H=-r × sin (θ+o)-x/2;
When -90 °≤θ≤0 °, H=r × sin (o- θ)-y/2;
When 0 °≤θ≤90 °, H=r × sin (θ+o)-y/2;
When 90 °≤θ≤180 °, H=r × sin (θ-o)-x/2;
When 180 °≤θ≤270 °, H=-r × sin (θ+o)-y/2;
When 270 °≤θ≤360 °, H=-r × sin (θ-o)-x/2;
Wherein, x is the length of current special-shaped workpiece, and y is the width of current special-shaped workpiece, and r is that current special-shaped workpiece is cornerwise
Length, angle of the θ between diagonal line and horizontal plane.
3. a kind of bracket control mechanism for special-shaped workpiece processing as described in claim 1, it is characterised in that: the control
Mechanism further includes HMI, and the HMI is connected with PLC.
4. a kind of bracket control mechanism for special-shaped workpiece processing as described in claim 1, it is characterised in that: the abnormity
Workpiece is rectangle.
5. a kind of bracket control mechanism for special-shaped workpiece processing as described in claim 1, it is characterised in that: the bracket
Between the main card disk and center chuck of laser cutting machine.
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CN201811634709.1A CN109719402A (en) | 2018-12-29 | 2018-12-29 | A kind of bracket control mechanism for special-shaped workpiece processing |
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CN201811634709.1A CN109719402A (en) | 2018-12-29 | 2018-12-29 | A kind of bracket control mechanism for special-shaped workpiece processing |
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JPH11183157A (en) * | 1997-12-22 | 1999-07-09 | Okuma Corp | Apparatus for measuring diameter of object by circumference measurement and method for controlling size of workpiece |
CN101520653A (en) * | 2009-04-16 | 2009-09-02 | 沈阳新瑞特机电设备有限公司 | Method for controlling curves by polar coordinate polynomial differential difference compensation milling |
CN102554690A (en) * | 2010-12-14 | 2012-07-11 | 西安众智惠泽光电科技有限公司 | Fully automatic machine tool for special-shaped structure piece |
CN202421833U (en) * | 2011-12-11 | 2012-09-05 | 西安扩力机电科技有限公司 | Numerical control machine for processing products in irregular structure |
CN206264040U (en) * | 2016-12-22 | 2017-06-20 | 青岛思锐自动化工程有限公司 | Circle cutting machine control system |
CN108213740A (en) * | 2018-03-13 | 2018-06-29 | 山东镭鸣数控激光装备有限公司 | A kind of follow-up material-supporting, doffer for laser pipe cutter |
-
2018
- 2018-12-29 CN CN201811634709.1A patent/CN109719402A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11183157A (en) * | 1997-12-22 | 1999-07-09 | Okuma Corp | Apparatus for measuring diameter of object by circumference measurement and method for controlling size of workpiece |
CN101520653A (en) * | 2009-04-16 | 2009-09-02 | 沈阳新瑞特机电设备有限公司 | Method for controlling curves by polar coordinate polynomial differential difference compensation milling |
CN102554690A (en) * | 2010-12-14 | 2012-07-11 | 西安众智惠泽光电科技有限公司 | Fully automatic machine tool for special-shaped structure piece |
CN202421833U (en) * | 2011-12-11 | 2012-09-05 | 西安扩力机电科技有限公司 | Numerical control machine for processing products in irregular structure |
CN206264040U (en) * | 2016-12-22 | 2017-06-20 | 青岛思锐自动化工程有限公司 | Circle cutting machine control system |
CN108213740A (en) * | 2018-03-13 | 2018-06-29 | 山东镭鸣数控激光装备有限公司 | A kind of follow-up material-supporting, doffer for laser pipe cutter |
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