CN112650171A - Control method for multi-travelling-vehicle co-servo line multi-process simultaneous production aluminum alloy oxidation production line - Google Patents
Control method for multi-travelling-vehicle co-servo line multi-process simultaneous production aluminum alloy oxidation production line Download PDFInfo
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- CN112650171A CN112650171A CN202011491600.4A CN202011491600A CN112650171A CN 112650171 A CN112650171 A CN 112650171A CN 202011491600 A CN202011491600 A CN 202011491600A CN 112650171 A CN112650171 A CN 112650171A
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- 238000000034 method Methods 0.000 title claims abstract description 116
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 230000003647 oxidation Effects 0.000 title claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 12
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000001174 ascending effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000033764 rhythmic process Effects 0.000 claims description 2
- 238000010187 selection method Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 238000002048 anodisation reaction Methods 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000007743 anodising Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
-
- 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
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31088—Network communication between supervisor and cell, machine group
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention belongs to the technical field of automatic control, and relates to a control method for an oxidation production line for simultaneously producing aluminum alloy by multiple traveling cranes in a line of servo. The invention has the key contents that the upper computer can carry out overall operation and is connected with the lower computer main PLC through the 485 communication port, the PLC sends out a control instruction, four traveling cranes provided with independent PLC systems can independently execute the instruction sent by the main PLC, and the four traveling crane PLCs can carry out independent operation after receiving the instruction and can be mutually interlocked, thereby realizing multi-process cross production of a production line and greatly improving the efficiency and the capacity of the production line. According to the invention, through flexible design, the production line can realize multi-process cross production, the large production beat can be increased to 15 minutes, the production capacity of the production line is greatly improved, and through interlocking design, the travelling crane is safer and more reliable in the running process, and the effective production can be ensured.
Description
Technical Field
The invention belongs to the technical field of automatic control, and relates to a control method for an oxidation production line for simultaneously producing aluminum alloy by multiple traveling cranes in a line of servo.
Background
At present, the traditional oxidation production line of domestic aviation industry is mostly manual and semi-automatic production line, because aviation industry oxidation line oxidation contains multiple technology: chemical oxidation, chromic acid anodization, phosphoric acid anodization, boric sulfuric acid anodization, 34 stations are involved. The manual line or semi-automatic production process requires workers to monitor the production state on the production line all the time, multiple processes cannot be simultaneously produced, and the production takt is low. This patent introduces host computer and PLC intelligence control system, and four traveling cranes are watched an organic whole altogether, and the multiprogram linkage can improve the production beat to 15 minutes by 90 minutes in the past, improves the production line productivity by a wide margin, has guaranteed the technology stability.
Disclosure of Invention
The invention has the key contents that the upper computer can carry out overall operation and is connected with the lower computer main PLC through the 485 communication port, the PLC sends out a control instruction, four traveling cranes provided with independent PLC systems can independently execute the instruction sent by the main PLC, and the four traveling crane PLCs can carry out independent operation after receiving the instruction and can be mutually interlocked, thereby realizing multi-process cross production of a production line and greatly improving the efficiency and the capacity of the production line.
The technical scheme of the invention is as follows:
a control system for flexible aluminum alloy oxidation production line for multi-line vehicle-servo-line multi-process simultaneous production comprises an industrial personal computer, a main PLC, a traveling vehicle (with a PLC), a flying bus, stations, an anti-collision design, an interlocking design and automatic logic operation.
Preferably, the driving servo allocation scheme is as follows: the traveling ranges of the A traveling vehicle 1-12 stations, the B traveling vehicle 12-21 stations, the C traveling vehicle 21-26 stations and the D traveling vehicle 26-34 stations are intersected with each other, so that the transmission of the flying bars is realized.
Preferably, the traveling crane is designed with a PLC, communicates with the main PLC, can execute an operation instruction issued by the main PLC, and automatically executes the turnover of the flying bar in the section according to the program starting time and the process time logical operation.
Preferably, each traveling control range has at most two process slots, and when a program is written, the priority of the synchronous traveling execution command is the process slot position, so that the condition that parts are overtime in the process slots and the rinsing slots are the secondary priority is prevented.
Preferably, the driving anti-collision design is that when two driving are close, the other driving is sensed through a proximity switch, at the moment, the rear main driving gives way, the flying bus is placed into the buffer station when the front main driving is in the front, and when the front main driving returns to a safe distance, the rear driving takes parts from the buffer station and runs backwards.
Preferably, multiple processes are simultaneously and alternately produced, the model numbers of the 000001-000005 process programs are input through 485 and an upper computer, and the part turnover tasks of the model numbers of the process programs are executed in a segmented mode by each traveling crane by taking an O/O station as a starting point.
Preferably, the travelling crane adopts a rotary encoder, and can be accurately positioned and absolutely positioned at a station. The variable frequency motor is adopted for driving, so that the starting and stopping buffering can be realized, and the collision of parts with too high speed can be prevented.
Preferably, the lifting and the walking of the travelling crane are interlocked, the travelling crane cannot walk when ascending and descending, the accurate positioning is ensured, and the stepless speed regulation can be carried out when ascending, descending and walking.
Preferably, the priority setting principle is used for operating according to the priority principle in each driving control range.
S1, priority of each process parameter;
s2, comparing time of each station with priority;
and S3, priority of each process tank body.
The invention has the beneficial effects that:
1, through the flexible design, the production line can realize multi-process cross production, the large production takt can be increased to 15 minutes, and the production capacity of the production line is greatly improved.
2 the system allows an operator on the production line to arbitrarily set the walking stations and the sequence of the stations of each hanging product according to the requirement, each hanging product carries the processing station required by the process and the process voltage, current and temperature parameter information of each station when hanging, and the control system automatically generates a new driving walking route according to the parameters, thereby being more convenient in use.
3 by adopting a rotary encoder coding method, the station where the travelling crane is located at any moment and the station where each hanging product is located are determined, and the stations can be read out through the communication of the industrial personal computer and the PLC and displayed on the industrial and air-conditioning machine, so that the real-time monitoring is convenient.
And 4, by setting flexible programming, the travelling crane can meet the flexible and variable requirements of the production process in the running process.
5 through the design of interlocking for the driving is safe and reliable more in the in-process of operation, can guarantee the effective of production and go on.
Drawings
FIG. 1 is a flow chart of the present invention for processing traffic scheduling during PLC programming.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
In the invention, the station A is a pretreatment procedure from 1 station to 12 stations, and the No. 12 slot position is a buffer exchange station, so that the exchange of A, B cars is realized; the traveling crane B is a 12-21 station and is a chromic acid anodizing and sulfuric acid anodizing process, and the No. 21 slot is a buffer exchange station, so that the exchange of B, C cars is realized; c, a travelling crane 21-26 station is a phosphoric acid anodizing and a boric sulfuric acid anodizing process, and a No. 26 slot position is a buffer exchange station; the exchange of C, D cars is realized, and the post-treatment process is realized by the cars in the stations 26-34 in the line D.
1-12, and the same pretreatment of different processes, chromic acid anodization, sulfuric acid anodization, boric sulfuric acid anodization, phosphoric acid anodization and chemical oxidation can be realized, and the production can be carried out simultaneously or selectively.
The invention adopts a flexible control mode of PC (upper computer), PLC and touch screen, the PC edits various process requirements such as time, temperature, current, voltage and the like into process numbers, and stores the process numbers in the PC to form a database, and the PC is used for calculating and sending process instructions and simultaneously performing setting, displaying, monitoring, historical data query and the like.
The PLC controls the technological parameters of all the working procedures, the running of all the traveling cranes and the running of other auxiliary equipment; the touch screen is used for setting the process number and the process parameters of the currently required product. The main body control method comprises the following steps:
1. the PC machine carries out maintenance of product data, maintenance of process numbers, setting of process parameters, setting of alarm ranges and the like;
2. and (3) hanging data input: inputting product names, quantity, process numbers and the like on a human-computer interface touch screen;
3. data transmission: the PC and the PLC are communicated through a 485 communication interface, a process number of a current hanging product is collected, and the current process number is written into a process number of a loading address in the PLC;
4. and (3) hanging and driving data logic: when the travelling crane extracts a feeding pole rod from the feeding area, the process number of the address of the feeding area is written into the storage address of the travelling crane, the travelling crane triggers the travelling memory according to the currently stored process number in the next step of the travelling crane, and the next step of the travelling crane acts according to the set steps (for example, if the process storage address of the travelling crane PLC is set to be D200, the value 2 in the feeding PLC address D100 is written into the D200, the value of the D200 is 2, and the travelling crane performs the next step of the action according to the set process triggering step memory No. 2);
5. the process and driving data logic is as follows: when the traveling crane carries out the next process, the process number currently stored by the traveling crane is written into the PLC address of the current process and each process condition stored by the process number is written into each storage address of the current process in the descending process of the traveling crane, and when the traveling crane is lifted, the process number stored by the PLC address of the current process is written into the PLC storage address of the traveling crane in reverse. And the next step of the traveling crane acts according to the currently stored process number of the traveling crane. (setting the PLC process memory address of the travelling crane when the travelling crane descends, writing the value 2 in the D200 into the PLC address of the current process serial number, if the process address D102 is used, writing 2 in the D102, and if the travelling crane ascends, rewriting the value of the D102 into the D200 again, writing 2 in the D200, and carrying out the next action of the travelling crane according to the process No. 2).
6. The selection method of the multiple processes comprises the following steps: comparing the difference between the process time and the current running time, the invention is 5 processes, the difference is 5:
1) the five values are all zero, and can be selected in 5 processes;
2) if the five values are not zero, the process number corresponding to the minimum value is a selectable item, and other process numbers are not selectable;
3) and if the five value parts are zero, the process number of the minimum value and the zero value is optional, and other process numbers are not optional.
7. The travelling cranes hang and take the flying bars of the parts through the lifting hooks, the flying bars and the parts are conveyed through walking, and the running rhythm and the running relay of each travelling crane are adjusted through the exchange groove and the rinsing bath.
8. Interlocking of the travelling crane: the travelling crane is interlocked in ascending and descending, in positive and negative rotation, in ascending and descending and walking, parts are interlocked in the process groove without descending, and the interactive travelling crane is interlocked without collision.
9. The traveling positioning adopts a rotary encoder to realize absolute positioning, and the risk of inaccurate positioning caused by the traditional 8421 encoding is avoided.
10. The lifting frequency conversion speed regulation of the traveling crane adopts a slow-fast-slow mode to prevent cylinder smashing and unhooking.
11. The travelling frequency conversion speed regulation of the travelling crane can automatically run at different speeds according to the number of the slot positions and the distance, so that the travelling crane is rapid, accurate and stable.
12. The travelling crane is linked with the technological parameters of each technological groove body, the technological parameters do not meet the condition that the travelling crane does not run, or the alarm is performed for human intervention and the like.
13. The traveling crane can realize open operation, can shield the trench wantonly, carries out nimble technology adjustment.
14. The traveling crane can realize setting of priority, set process programs can be preferentially operated according to the principle, and the process requirements are strict.
15. The PC can be used for setting process parameters, inquiring the process parameters, monitoring the driving state, monitoring the process parameters and the like.
Claims (2)
1. A control method for a flexible aluminum alloy oxidation production line produced by multiple rows of vehicles in a servo-line and multiple processes simultaneously is characterized by comprising the following steps:
the first step is as follows: maintaining product data, maintaining process numbers, setting process parameters and setting an alarm range on the PC;
the second step is that: and (3) hanging data input: inputting product names, quantity and process numbers on a human-computer interface touch screen;
the third step: data transmission: the PC and the PLC are communicated through a 485 communication interface, a process number of a current hanging product is collected, and the current process number is written into a process number of a loading address in the PLC;
the fourth step: and (3) hanging and driving data logic: when the traveling crane extracts the feeding pole rod from the feeding area, the process number of the address of the feeding area is written into the storage address of the traveling crane, and the traveling crane triggers a traveling memory according to the currently stored process number in the next step of the traveling crane and acts according to the set steps;
the fifth step: the process and driving data logic is as follows: when the traveling crane carries out the next process, writing a process number currently stored by the traveling crane into a PLC (programmable logic controller) address of the current process and writing each process condition stored by the process number into each storage address of the current process in the descending process of the traveling crane, and writing the process number stored by the PLC address of the current process into the PLC storage address of the traveling crane in reverse when the traveling crane is lifted; the next step of driving is to act according to the currently stored process number of the driving;
and a sixth step: the selection method of the multiple processes comprises the following steps: comparing the difference between the process time and the current operation time, the invention is 5 processes, and the difference is 5;
the seventh step: the travelling cranes hang and take the flying bars of the parts through the lifting hooks, the flying bars and the parts are conveyed through travelling, and the running rhythm and the running relay of each travelling crane are adjusted through the exchange groove and the rinsing groove;
eighth step: interlocking of the travelling crane: the travelling crane is interlocked in ascending and descending, in positive and negative rotation, in ascending and descending and walking, parts are interlocked in a process groove in a descending-free way, and the interactive travelling crane is interlocked in a collision-free way;
the ninth step: the traveling positioning adopts a rotary encoder to realize absolute positioning, so that the risk of inaccurate positioning caused by the traditional 8421 encoding is avoided;
the tenth step: the lifting, frequency conversion and speed regulation of the travelling crane are realized, and a slow-fast-slow mode is adopted to prevent cylinder smashing and unhooking;
the eleventh step: the traveling frequency conversion speed regulation of the traveling crane can automatically run at different speeds according to the number of the slot positions and the distance, so that the traveling crane is rapid, accurate and stable;
the twelfth step: the travelling crane is linked with the technological parameters of each technological groove body, and the technological parameters do not meet the requirement that the travelling crane does not run or the alarm is manually intervened;
the thirteenth step: the traveling crane can realize open operation, can shield the slot position at will, carry on the flexible technological adjustment;
the fourteenth step is that: the traveling crane can realize the setting of priority, and set process programs and programs with strict process requirements can be preferentially operated according to the principle;
the fifteenth step: the PC can be used for setting process parameters, inquiring the process parameters, monitoring the driving state and monitoring the process parameters.
2. The method for controlling the flexible aluminum alloy oxidation production line by multiple lines of vehicles and servo lines and multiple processes simultaneously as claimed in claim 1, wherein the sixth step specifically comprises the following operations:
1) the five values are all zero, and can be selected in 5 processes;
2) if the five values are not zero, the process number corresponding to the minimum value is a selectable item, and other process numbers are not selectable;
3) and if the five value parts are zero, the process number of the minimum value and the zero value is optional, and other process numbers are not optional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491600.4A CN112650171A (en) | 2020-12-17 | 2020-12-17 | Control method for multi-travelling-vehicle co-servo line multi-process simultaneous production aluminum alloy oxidation production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491600.4A CN112650171A (en) | 2020-12-17 | 2020-12-17 | Control method for multi-travelling-vehicle co-servo line multi-process simultaneous production aluminum alloy oxidation production line |
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| CN112650171A true CN112650171A (en) | 2021-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630870A (en) * | 2013-11-10 | 2015-05-20 | 西安众智惠泽光电科技有限公司 | Monitoring system for electroplating travelling crane |
| CN104692249A (en) * | 2013-12-10 | 2015-06-10 | 沈阳铝镁设计研究院有限公司 | Method and system for automatically positioning anode carbon block stacking crane |
| CN207742552U (en) * | 2018-01-12 | 2018-08-17 | 杭州钱江称重技术有限公司 | A kind of overhead traveling crane orientation management system applied to ladle |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| CN111411389A (en) * | 2020-05-13 | 2020-07-14 | 太仓市金鹿电镀有限公司 | Control system of full-automatic plastic electroplating production line and working method thereof |
-
2020
- 2020-12-17 CN CN202011491600.4A patent/CN112650171A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630870A (en) * | 2013-11-10 | 2015-05-20 | 西安众智惠泽光电科技有限公司 | Monitoring system for electroplating travelling crane |
| CN104692249A (en) * | 2013-12-10 | 2015-06-10 | 沈阳铝镁设计研究院有限公司 | Method and system for automatically positioning anode carbon block stacking crane |
| CN207742552U (en) * | 2018-01-12 | 2018-08-17 | 杭州钱江称重技术有限公司 | A kind of overhead traveling crane orientation management system applied to ladle |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| CN111411389A (en) * | 2020-05-13 | 2020-07-14 | 太仓市金鹿电镀有限公司 | Control system of full-automatic plastic electroplating production line and working method thereof |
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