CN109375586A - The method and system of flight cut-sytle pollination are realized in laser numerical control system - Google Patents
The method and system of flight cut-sytle pollination are realized in laser numerical control system Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32063—Adapt speed of tool as function of deviation from target rate of workpieces
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Abstract
The present invention relates to a kind of methods that flight cut-sytle pollination is realized in laser numerical control system, including (1) to carry out drive data interaction and obtain data；(2) the constant time lag t ' between feedback position and physical location is calculated according to cut point target position and period internal feedback position；(3) FPGA is configured according to calculated t ' and controls laser port by the t' time.The invention further relates to the systems that flight cut-sytle pollination is realized in a kind of laser numerical control system.Using in the laser numerical control system realize flight cut-sytle pollination method and system, have it is high in machining efficiency, precision is good, advantage at low cost, using more and more extensive, flight cutting function is used as the critical function in laser numerical control system for it, is the raising indispensable ring of processing efficiency.This method and system devise the flight cutting method that can be used under bus system, can obtain driver feedback position in real time, and application range is wider.
Description
Technical field
The present invention relates to the laser port control fields in numerical control processing field more particularly to laser numerical control system, specifically
Refer to the method and system that flight cut-sytle pollination is realized in a kind of laser numerical control system.
Background technique
Processing manufacturing industry is all the pillar industries of the national economy all the time, and national life is even more to be unable to do without processing and manufacturing
Industry.Wherein the level of digital control system has direct connection to manufacturing level.With the rapid development of digital control system, people
Requirement to processing efficiency and machining accuracy is higher and higher.
The digital control system of bus type possesses high in machining efficiency, and precision is good, advantage at low cost, and application is more and more wider
General, flight cutting function is to improve the indispensable ring of processing efficiency as the critical function in laser numerical control system.
For bus driver, because cannot be driven in real time as non-bus driver the reason of communication cycle
Device feedback position, non-bus flight cutting algorithm are no longer applicable in.
In order to preferably use bus-type digital control system, need to design a kind of flight cutting that can be used under bus system
Method.
Summary of the invention
The purpose of the present invention is overcoming the above-mentioned prior art, provides and a kind of meet high in machining efficiency, precision
Good, realization flight cut-sytle pollination in laser numerical control system at low cost method and system.
To achieve the goals above, the method and system of flight cut-sytle pollination are realized such as in laser numerical control system of the invention
Under:
In the laser numerical control system realize flight cut-sytle pollination method, be mainly characterized by, the method include with
Lower step:
(1) it carries out drive data interaction and obtains data；
(2) fixation between feedback position and physical location is calculated according to cut point target position and period internal feedback position to prolong
When t '；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time.
Preferably, in the step (1) specifically includes the following steps:
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, allowing instruction
It joins the team；Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2).
Preferably, the constant time lag t ' calculated between feedback position and physical location in the step (2), specifically includes
Following steps:
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated.
Preferably, at the time of calculating predicted motion in the step (2.1) is to ideal cut point position exp, specifically
Are as follows:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is to cut point target in X-axis
Position to this period feedback position distance, DisY be Y-axis on cut point target position to this period feedback position away from
From,For cut point target position to the distance vector of this period feedback position,For the feedback of a upper communication cycle
Position, VelX are cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed arrow
Amount.
Preferably, calculating in the step (2.2) is from fcurThe time t of exp is moved to, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is Current communications period, DisX
For the distance of the feedback position of cut point target position in X-axis to this period, DisY is cut point target position to this week in Y-axis
The distance of the feedback position of phase,For cut point target position to the distance vector of this period feedback position, VelX is in X-axis
Cutting speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
Preferably, the constant time lag t ' calculated between feedback position and physical location in the step (2.3), specifically
Are as follows:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is driver feedback position and driver physical location
Constant time lag.
Preferably, in the step (3) specifically includes the following steps:
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) judge whether t ' refers to less than 1 cycle T if it is, configuration FPGA controls laser port by the t' time
It enables out team and terminates communication cycle；Otherwise, communication cycle terminates.
The laser numerical control system of the realization flight cut-sytle pollination, is mainly characterized by, and the system includes:
Motor cuts workpiece for practical；
Program is controlled, the control program is poor according to practical cutting position adjustment end slip of the tongue of motor at runtime, tool
Body follows the steps below processing:
(1) it carries out drive data interaction and obtains data；
(2) fixation between feedback position and physical location is calculated according to cut point target position and period internal feedback position to prolong
When t '；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time.
Preferably, in the step (1) specifically includes the following steps:
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, allowing instruction
It joins the team；Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2).
Preferably, the constant time lag t ' calculated between feedback position and physical location in the step (2), specifically includes
Following steps:
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated.
Preferably, at the time of calculating predicted motion in the step (2.1) is to ideal cut point position exp, specifically
Are as follows:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is to cut point target in X-axis
Position to this period feedback position distance, DisY be Y-axis on cut point target position to this period feedback position away from
From,For cut point target position to the distance vector of this period feedback position,For the feedback of a upper communication cycle
Position, VelX are cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed arrow
Amount.
Preferably, calculating in the step (2.2) is from fcurThe time t of exp is moved to, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is Current communications period, DisX
For the distance of the feedback position of cut point target position in X-axis to this period, DisY is cut point target position to this week in Y-axis
The distance of the feedback position of phase,For cut point target position to the distance vector of this period feedback position, VelX is in X-axis
Cutting speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
Preferably, the constant time lag t ' calculated between feedback position and physical location in the step (2.3), specifically
Are as follows:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is driver feedback position and driver physical location
Constant time lag.
Preferably, in the step (3) specifically includes the following steps:
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) judge whether t ' refers to less than 1 cycle T if it is, configuration FPGA controls laser port by the t' time
It enables out team and terminates communication cycle；Otherwise, communication cycle terminates.
Using the method and system for realizing flight cut-sytle pollination in laser numerical control system of the invention, there is processing efficiency
Height, precision is good, advantage at low cost, and using more and more extensive, flight cutting function is as the weight in laser numerical control system
Function is wanted, is to improve the indispensable ring of processing efficiency.This method and system devise can be used under bus system fly
Row cutting method, can obtain driver feedback position in real time, and application range is wider.
Detailed description of the invention
Fig. 1 is the flow chart that the method for flight cut-sytle pollination is realized in laser numerical control system of the invention.
Fig. 2 is that the practical cutting of the motor of the system of flight cut-sytle pollination and ideal are realized in laser numerical control system of the invention
The schematic diagram of cutting.
Specific embodiment
It is further to carry out combined with specific embodiments below in order to more clearly describe technology contents of the invention
Description.
The method that flight cut-sytle pollination is realized in the laser numerical control system, including following steps:
(1) it carries out drive data interaction and obtains data；
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, allowing instruction
It joins the team；Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2)；
(2) fixation between feedback position and physical location is calculated according to cut point target position and period internal feedback position to prolong
When t '；
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time；
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) whether t ' is judged less than 1 cycle T, controls laser port by the t' time if it is, configuring FPGA,
It instructs out team and terminates communication cycle；Otherwise, communication cycle terminates.
As the preferred embodiment of the present invention, calculating predicted motion in the step (2.1) to ideal cut point
At the time of the exp of position, specifically:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is to cut point target in X-axis
Position to this period feedback position distance, DisY be Y-axis on cut point target position to this period feedback position away from
From,For cut point target position to the distance vector of this period feedback position,For the feedback of a upper communication cycle
Position, VelX are cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed arrow
Amount.
As the preferred embodiment of the present invention, calculating in the step (2.2) is from fcurMove to the time of exp
T, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is Current communications period, DisX
For the distance of the feedback position of cut point target position in X-axis to this period, DisY is cut point target position to this week in Y-axis
The distance of the feedback position of phase,For cut point target position to the distance vector of this period feedback position, VelX is in X-axis
Cutting speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
As the preferred embodiment of the present invention, between the calculating feedback position and physical location in the step (2.3)
Constant time lag t ', specifically:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is driver feedback position and driver physical location
Constant time lag.
The system of flight cut-sytle pollination is realized in the laser numerical control system based on the above method, wherein the system
Include:
Motor cuts workpiece for practical；
Program is controlled, the control program is poor according to practical cutting position adjustment end slip of the tongue of motor at runtime, tool
Body follows the steps below processing:
(1) it carries out drive data interaction and obtains data；
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, allowing instruction
It joins the team；Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2)；
(2) fixation between feedback position and physical location is calculated according to cut point target position and period internal feedback position to prolong
When t '；
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time；
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) whether t ' is judged less than 1 cycle T, controls laser port by the t' time if it is, configuring FPGA,
It instructs out team and terminates communication cycle；Otherwise, communication cycle terminates.
As the preferred embodiment of the present invention, calculating predicted motion in the step (2.1) to ideal cut point
At the time of the exp of position, specifically:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is to cut point target in X-axis
Position to this period feedback position distance, DisY be Y-axis on cut point target position to this period feedback position away from
From,For cut point target position to the distance vector of this period feedback position,For the feedback of a upper communication cycle
Position, VelX are cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed arrow
Amount.
As the preferred embodiment of the present invention, calculating in the step (2.2) is from fcurMove to the time of exp
T, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is Current communications period, DisX
For the distance of the feedback position of cut point target position in X-axis to this period, DisY is cut point target position to this week in Y-axis
The distance of the feedback position of phase,For cut point target position to the distance vector of this period feedback position, VelX is in X-axis
Cutting speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
As the preferred embodiment of the present invention, between the calculating feedback position and physical location in the step (2.3)
Constant time lag t ', specifically:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is driver feedback position and driver physical location
Constant time lag.
In a specific embodiment of the invention, the present invention provides slave computer flights in a kind of laser bus digital control system to cut
Algorithm is cut, motor is in cutting arc shape work piece, and since the process of acceleration and deceleration has rigid error, this results in cutting practical when arc cutter track
Cutting position relative to cutter track have it is certain inside contract, modeling is such as Fig. 2.
In Fig. 2, line above represents ideal transmission position.Following line represents feedback position.Tar is cutting point target position
It sets, is known conditions.flastIt is known conditions for the feedback position of a upper communication cycle.fcurFor the feedback bit in this period
It sets, is known conditions.Exp is ideal cut point position.fexpFor the next periodic feedback position of prediction.
As shown in Figure 1, at the time of needing predicted motion to the position exp.
Assuming that the Current communications period is T, then fcur moves to the time t of exp are as follows:
Due to communications protocol, driver feedback position and driver actual bit are equipped with one section of constant time lag delay
T '=t-delay；
Compare t' and T:
(1) if T > t', FPGA is configured by the t' time and controls laser port (if t'≤0, port is immediately controlled)
(2) if T≤t', next communication cycle recalculates the control laser port time
Using the method and system for realizing flight cut-sytle pollination in laser numerical control system of the invention, there is processing efficiency
Height, precision is good, advantage at low cost, and using more and more extensive, flight cutting function is as the weight in laser numerical control system
Function is wanted, is to improve the indispensable ring of processing efficiency.This method and system devise can be used under bus system fly
Row cutting method, can obtain driver feedback position in real time, and application range is wider.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (14)
1. realizing the method for flight cut-sytle pollination in a kind of laser numerical control system, which is characterized in that the method includes following
Step:
(1) it carries out drive data interaction and obtains data；
(2) the constant time lag t between feedback position and physical location is calculated according to cut point target position and period internal feedback position
‘；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time.
2. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 1, which is characterized in that described
The step of (1) in specifically includes the following steps:
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, instruction is allowed to join the team；
Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2).
3. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 1, which is characterized in that described
The step of (2) in the constant time lag t ' calculated between feedback position and physical location, specifically includes the following steps:
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated.
4. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 3, which is characterized in that described
The step of (2.1) in calculating predicted motion to ideal cut point position exp at the time of, specifically:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is cut point target position in X-axis
To the distance of the feedback position in this period, DisY be in Y-axis cut point target position to this period feedback position distance,For cut point target position to the distance vector of this period feedback position,For the feedback bit of a upper communication cycle
It setting, VelX is cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed vector.
5. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 3, which is characterized in that described
The step of (2.2) in calculating from fcurThe time t of exp is moved to, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is the Current communications period, and DisX is X-axis
The distance of feedback position of the upper cut point target position to this period, DisY are cut point target position to this period in Y-axis
The distance of feedback position,For cut point target position to the distance vector of this period feedback position, VelX is to cut in X-axis
Speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
6. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 3, which is characterized in that described
The step of (2.3) in the constant time lag t ' calculated between feedback position and physical location, specifically:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is the fixation of driver feedback position and driver physical location
Delay.
7. realizing the method for flight cut-sytle pollination in laser numerical control system according to claim 1, which is characterized in that described
The step of (3) in specifically includes the following steps:
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) judge whether t ' instructs out less than 1 cycle T if it is, configuration FPGA controls laser port by the t' time
Team simultaneously terminates communication cycle；Otherwise, communication cycle terminates.
8. a kind of laser numerical control system for realizing flight cut-sytle pollination function, which is characterized in that the system includes:
Motor cuts workpiece for practical；
Control program, the control program is poor according to practical cutting position adjustment end slip of the tongue of motor at runtime, specifically into
Row steps of processing:
(1) it carries out drive data interaction and obtains data；
(2) the constant time lag t between feedback position and physical location is calculated according to cut point target position and period internal feedback position
‘；
(3) FPGA is configured according to calculated t ' and controls laser port by the t' time.
9. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 8, which is characterized in that described
The step of (1) in specifically includes the following steps:
(1.1) drive data interaction is carried out, judges whether to receive new port controlling instruction, if it is, instruction is allowed to join the team；
Otherwise, continue step (1.2)；
(1.2) whether decision instruction queue is sky, if it is, communication cycle terminates；Otherwise continue step (2).
10. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 8, which is characterized in that institute
The constant time lag t ' calculated between feedback position and physical location in the step of stating (2), specifically includes the following steps:
(2.1) at the time of calculating predicted motion to the position exp；
(2.2) it calculates from fcurMove to the time t of exp；
(2.3) the constant time lag t ' between feedback position and physical location is calculated.
11. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 10, which is characterized in that institute
At the time of calculating predicted motion in the step of stating (2.1) is to ideal cut point position exp, specifically:
At the time of calculating predicted motion to the position exp according to the following formula:
Wherein,For cut point target position,For the feedback position in this period, DisX is cut point target position in X-axis
To the distance of the feedback position in this period, DisY be in Y-axis cut point target position to this period feedback position distance,For cut point target position to the distance vector of this period feedback position,For the feedback position of a upper communication cycle,
VelX is cutting speed scalar in X-axis, and VelY is cutting speed scalar in Y-axis,For current plane cutting speed vector.
12. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 10, which is characterized in that institute
Calculating in the step of stating (2.2) is from fcurThe time t of exp is moved to, specifically:
It is calculated according to the following formula from fcurMove to the time t of exp:
Wherein,For cut point target position,For the feedback position in this period, T is the Current communications period, and DisX is X-axis
The distance of feedback position of the upper cut point target position to this period, DisY are cut point target position to this period in Y-axis
The distance of feedback position,For cut point target position to the distance vector of this period feedback position, VelX is to cut in X-axis
Speed scalar, VelY are cutting speed scalar in Y-axis,For current plane cutting speed vector.
13. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 10, which is characterized in that institute
The constant time lag t ' calculated between feedback position and physical location in the step of stating (2.3), specifically:
The constant time lag t ' between feedback position and physical location is calculated according to the following formula:
T '=t-delay,
Wherein, t is from fcurThe time of exp is moved to, delay is the fixation of driver feedback position and driver physical location
Delay.
14. realizing the system of flight cut-sytle pollination in laser numerical control system according to claim 8, which is characterized in that institute
It is in the step of stating (3) specifically includes the following steps:
(3.1) t ' is judged whether no more than 0, if it is, port is immediately controlled；Otherwise, continue step (3.2)；
(3.2) judge whether t ' instructs out less than 1 cycle T if it is, configuration FPGA controls laser port by the t' time
Team simultaneously terminates communication cycle；Otherwise, communication cycle terminates.
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| CN115647611A (en) * | 2022-12-14 | 2023-01-31 | 深圳市睿达科技有限公司 | Laser cutting power-off continuous processing control method and system |
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| CN115647611B (en) * | 2022-12-14 | 2023-02-28 | 深圳市睿达科技有限公司 | Laser cutting power-off continuous processing control method and system |
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