CN202196294U - Modular structure applied to numerical control machine tool control system - Google Patents
Modular structure applied to numerical control machine tool control system Download PDFInfo
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- CN202196294U CN202196294U CN2011201376381U CN201120137638U CN202196294U CN 202196294 U CN202196294 U CN 202196294U CN 2011201376381 U CN2011201376381 U CN 2011201376381U CN 201120137638 U CN201120137638 U CN 201120137638U CN 202196294 U CN202196294 U CN 202196294U
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Abstract
A modular structure applied to a numerical control machine tool control system comprises an HMI (Human Machine Interface) and a communication bus, and is characterized in that: each function program of the system is packaged in each module, an input end and an output end of the each module in a PLC (Programmable Logic Controller) pedestal are correspondingly communicated with pins of a numerical control system PLC processor and a power supply module through a data bus and a power supply bus; a PLC internal storage area is provided with a function selection parameter quantity checking module, an output end of the function selection parameter quantity checking module is connected with a basic function database module part through an input signal mapping module, the basic function database module part comprises a system starting module, an axle control module and an auxiliary function selection module, wherein the all modules respectively have an input interface and an output interface with the basic function database module; and an output end of the basic function database module is connected with an output signal mapping module. The modular structure of the utility model has the advantages of raising production efficiency of the numerical control machine tool, reducing failure rate of the numerical control machine tool, and enhancing reliability of the numerical control machine tool in the process of actual use.
Description
Technical field
The utility model relates to automation field, is used for the modular structure of the control system of numerically-controlled machine control and motion control.
Technical background
In the control procedure of numerically-controlled machine, often need carry out the authorized strength work of a large amount of logic controls, and form a contradiction between at present traditional logic control and advanced person's the control application requirements.The check of present control of quality does not have clearly unified standard; In the actual engineering; Often judge control of quality according to the last result who carries out, the result is controlled to for a very personalized job for numerically-controlled machine, and steering logic separately has very big randomness; Caused bigger obstacle for the mutual interchange of numerically-controlled machine aspect control; When a numerically-controlled machine hardware configuration is divided into several different functions parts, when being controlled respectively by different personnel, this situation is even more serious.This state has greatly hindered raising and the production debugging and the plant maintenance in later stage of the establishment level of logic control, and the control effect of numerically-controlled machine also is difficult to obtain good guarantee simultaneously.
Summary of the invention
The purpose of the utility model is exactly a kind of modular structure that is applied to the numerically-controlled machine control system of design; Each general module that will be packaged with function program by steering logic connects into the functional unit that can be transferred by PLC; Improve the production efficiency of numerically-controlled machine and the failure rate of minimizing numerically-controlled machine, strengthen numerically-controlled machine reliability in actual use.
A kind of modular structure that is applied to the numerically-controlled machine control system; The numerically-controlled machine man-machine interface passes through to drive bus and device bus and digital control system NCU unit UNICOM respectively through MPI bus, digital control system servo unit; Digital control system NCU unit is through the input of profibus bus UNICOM, output module; It is characterized in that being encapsulated in each function program of numerically-controlled machine control system in each functional module, the input of each module in the PLC pedestal, output terminal are through data bus and power bus and the mutual corresponding connection of each pin of digital control system PLC processor and power module; The PLC internal storage region of native system is provided with the function selecting number of parameters and checks module, and its output terminal connects the input signal mapping block; The output terminal of input signal mapping block connects basic function library module part; The basic function library module has partly comprised each sub-function module of program for numerical tool operation, and system start-up module wherein, axle control module and subsidiary function select module all with the basic function library module input, output interface to be arranged; The output terminal of basic function library module part connects output signal map module.
The design's contribution is with after in the NCU unit control of numerically-controlled machine being decomposed into each functional unit; Be packaged into general module; Call relevant functional module through the function selecting on the HMI man-machine interface; When need replenishing or revising a certain function; As long as revise this functional module, and a complete set of steering logic that need not make or revise numerically-controlled machine again can realize the production debugging and the plant maintenance of numerically-controlled machine, with numerically-controlled machine the making of control be simplified to as replacing standard electronic element simple with revision.
Outstanding advantage is: 1. require to be divided into several minor feature programs to the control task that the numerically-controlled machine needs are accomplished according to control in each module; Then each function program is carried out module package respectively; Relatively independent, the function singleness of each module like this has after circuit connects and flows to program structure clearly, has not only obtained higher control of quality; Greatly reduce the programming difficulty simultaneously, avoided the duplication of labour.
2. steering logic is packaged into module and makes the whole steering logic well-formed of lathe to have good understandability, be easy to the maintenance in later stage.This module is provided with has protective effect to output data, and through the intermediate variable Data transmission, period separately all has been encapsulated in the module separately well between the module.Such as, the period that outputs to equipment is only operated through output signal map module, has improved the security of equipment so greatly, can prevent because the misoperation that the steering logic confusion causes.The module of encapsulation has good portability, as long as revised a little by the deviser, just can be applied in the control of the same type.
3. steering logic is being packaged on the lathe of module; Utilize subsidiary function to select module can realize the selection and the startup of a certain function efficiently; Also can accomplish simultaneously identical function because structure is selected with the differentiated modular unit of steering logic that configuration is caused, save the time of the making and the debugging of steering logic.
Description of drawings
Fig. 1 is that the encapsulation modular structure circuit in the numerically-controlled machine control system of the utility model connects synoptic diagram;
Fig. 2 is the annexation synoptic diagram of each module through data bus and power bus and digital control system PLC processor and power supply;
Fig. 3 is that the lathe function number of parameters is checked module (1) encapsulating structure steering logic synoptic diagram;
Fig. 4 is input signal mapping block (a 4) encapsulating structure steering logic synoptic diagram;
Fig. 5 is the encapsulation modular structure annexation synoptic diagram in the design's machine tool control system.
The specific embodiments example
Being applied to the modular structure of numerically-controlled machine control system, is to be the concrete application process that simple examples is explained the utility model with the numerically-controlled machine that has two Hydraulic Stations (Z spindle balance Hydraulic Station and pine/folder cutter control Hydraulic Station).Steering logic in all modules and use the Siemens 840D digital control system establishment all be based on present numerically-controlled machine common configuration in this example.
The circuit connecting relation of this control system modular structure is as shown in Figure 1, mainly is made up of digital control system man-machine interface, digital control system servo unit, digital control system NCU unit, load module, output module.Wherein: digital control system NCU unit connects the MPI bus through plug X101 and carries out exchanges data with the digital control system man-machine interface; Digital control system NCU unit connects the driving bus to the servo plug X141 of digital control system through plug X130A, carries out the transmission and the exchange of drive signal with the digital control system servo unit; Digital control system NCU unit to the plug X151 of digital control system servo unit, carries out transmission and the exchange of signal of physics details of address, the driving arrangement of driving arrangement with the digital control system servo unit through plug X172 connection device bus; Digital control system NCU unit is connected respectively to the profibus bus on load module and the output module through plug X102; Receive and exchange the outside actual signal source of numerically-controlled machine, like emergent stop signal, oil level signal; The hydraulic electric motor control signal, running indicator control signal etc.
As shown in Figure 2 in digital control system NCU unit; The utility model segments the control system of numerically-controlled machine by each function; Be standalone module with each unit package again, the input, output terminal that it is characterized by each module in the PLC pedestal is through the mutual corresponding connection of pin PIN1-16, PIN0V, PIN24V with digital control system PLC processor and power module of data bus and power bus.Digital control system NCU unit comprises the steering logic processing section of this control system modular structure; The structure of this part is as shown in Figure 2; Can be divided into ten major parts, be respectively: PLC processor, power module, function selecting number of parameters are checked module, input signal mapping block, system start-up module, axle control module, subsidiary function selection module, basic function library module, output signal map module and PLC pedestal plate.And aforementioned each module module inserted in the PLC pedestal plate, and with data bus these modules are connected in series, be connected at last in the PLC processor processes.Wherein the effect of power module provides standard direct current 24V power supply for the steering logic processing section; PIN0V through power module is connected power bus with the PIN24V pin; Being connected in series to the function selecting number of parameters and checking on the PIN0V and PIN24V pin of module, input signal mapping block, system start-up module, axle control module, subsidiary function selection module, basic function library module and output signal map module, is that these modules supply the 24V direct current.PLC pedestal plate provides 8 slots, can insert and extract the PLC module, and the effect of PLC pedestal plate is a physical address of confirming the PLC module of each insertion simultaneously, does the basis for carrying out data communication between each module.Data bus is the plug of 16 pins in this example, from PIN1 to PIN16, by the PLC processor logical relation between each module is managed as a whole.Carry out communication between each module, at first confirm the physical address of each module, carry out the communication of data then through data bus through PLC pedestal plate.
Internal storage region is provided with the check criteria that the function selecting number of parameters is checked module (1) by the deviser in the PLC processor of native system; The native system module designer has following regulation in this example: press lathe function and select in the parameter list 1 listedly, integers quantity is that 30, scale-of-two quantity are that 140, floating type quantity are 30.Wherein the integer data area is used for storing integer variables such as number of cutters, lubrication time; The binary data zone is used for storing the zone bit of the startup of relevant subsidiary functions such as hydraulic pressure, chip cleaner, water tank, lubricated, water-cooled, tool rest control/close; The floating type data area is used for storing the tool change position of lathe coordinate axis.Wherein work data be by this machine operation person when the first Application; In the lathe parameter of man-machine interface, be provided with communicate with this lathe first wife control system and meet the standard volume that this modular system deviser provides the functional parameter of use; Whether the quantity setting that is used for checking the function selecting parameter is correct; The system logic that prevents each number of parameters that mistake is set and cause is chaotic, function is made mistakes, and stop the operation of numerically-controlled machine is broken down, even the mistake of causing danger enlarges.In use also can change the variate-value in the parameter list through the associative operation on the interface.
Checking module (1) with the function selecting number of parameters is example; Check in the steering logic of module (1) encapsulation in functional parameter quantity; Use decision logic respectively, the parameter that the operator is provided with on man-machine interface respectively with package module in setting value 30,140,30 compare, if the program that all equates is normally moved; If any one unequal, then steering logic gets into halted state.Whether this process is used for integers quantity that decision operation person is provided with in man-machine interface be whether 30, scale-of-two quantity are whether 140, floating type quantity are 30.See shown in Figure 3: #user_data_int on this module; User_data_hex; User_data_rea is the input signal that need carry out communication, and #stop, #no stop are the output signals that need carry out communication; These signals all carry out data communication through data bus and other modules, and the input/output signal of other modules in like manner.
Table 1 function selecting parameter signal table
In addition, for 30 integers variablees, 140 binary variables, 30 floating type variablees in the table 1, this control program moduleization system is all definition not, leave surplus, and the function that is used for is in the future expanded.
Input signal mapping block (2) receives dynamic input signal; While is according to the needs of practical application; Optionally part real input signal and storage inside data are carried out logical process; Give PLC inner storage data with actual input signal and the logical consequence assignment that needs, the storage data of PLC after through these assignment are carried out the logical operation processing with system start-up module (3), axle control module (4) and subsidiary function selection module (5).The encapsulating structure steering logic of the utility model input signal mapping block (2) is as shown in Figure 4; In this encapsulating structure steering logic; Being mapped to the actual input point of PLC in the storage unit that has defined among the PLC respectively, all is the pairing data field of DB piece of giving PLC with the way indirect assignment of indirect assignment basically.Comprised in this example supply module 2 input point IN1-2, hydraulic pressure unit hydraul 26 an interface IN3-8, module sin1-2 input point IN9-10,3 interface in11-13 of X axle, the corresponding DB piece of the output 1-13 of input signal mapping block (2) intermediate point.
The input point of which part of concrete definition and the specific address of input point are made amendment according to the actual input point of own actual lathe by lathe supplier's programmer.Control system only need be handled the data of the storage unit that has defined like this, rather than actual input point, when actual input point changes, only needs to revise the content of input signal mapping block (2) lining, rather than all steering logics.So just, debugging and management are convenient in the system that realized.
System start-up module (3) is used for system initialization, be mainly PLC and NC exchanges data, servo-drive system on/following electric control, the monitoring of servo module internal state etc., it is the precondition of servo-drive system unit and axle control module (4) operate as normal among Fig. 1.System start-up module (3) is used for system initialization, be mainly PLC and NC exchanges data, servo-drive system on/following electric control.
Circuit connecting relation between each module is seen shown in Figure 5; Guarantee the flow direction operation of signal transmission with the direction of arrow in scheming: the output signal that the function selecting number of parameters is checked module is transferred to the input signal mapping block through data bus; The output signal of input signal mapping block can be transferred to basic function library module (6) part through data bus; System start-up module (3) in basic function library module (6) part, axle control module (4), subsidiary function select module (5) all with basic function library module (6) input, output diconnected circuit to be set; System start-up module, axle control module, subsidiary function are selected module, basic function library module; The input signal of system start-up module and basic function library module can carry out mutual communication through data bus with the output signal; The input signal of axle control module and basic function library module can carry out mutual communication through data bus with the output signal; Subsidiary function selects the input signal of module and basic function library module and output signal to carry out mutual communication through data bus, and final system startup module, axle control module, subsidiary function select the output signal of module, basic function library module to be transferred to output signal map module through data bus.
Not only interrelated but also separate between each module like this, in debugging and maintenance process,, then only change corresponding module and get final product, and need not do whole maintenance if wherein certain module goes wrong.
During operation; In this encapsulation modular structure; At first judge that through the content of input signal map section the main power supply sky of control lathe opens and whether open, next through judge the lathe emergent stop signal, each enable signal, machine operation panel enabling signal, and the stop signal of machine operation panel wait the start and stop of controlling lathe.Secondly, the lamp of the enabling signal of machine operation panel is done control and treatment with the lamp of stop signal, at last the unlike signal of the power module of system has been done the processing of reporting to the police.When following 6 kinds of situations occurring, the feeding in the passage (notion of passage is to define in the Siemens system) enables to forbid simultaneously: 1. main shaft and does not activate or during non-G00, the speed of mainshaft does not reach setting value (under the non-manual state); 2. the main shaft actual torque is greater than the ultimate torque of setting in the driver; 3. feeding enable button is not pressed; 4. the lathe start button does not activate; 5. mistake makes a mistake during tool changing; 6. main shaft is in star/angle transfer process.System start-up module (3) judges according to input signal storage data, digital control system built-in variable that input signal mapping block (2) is obtained whether the periphery of system start-up and interior condition meet the demands; If meet the demands then start servo-control system; For the startup of axle control module (4) operation provides corresponding preparatory condition; Be that servo-drive system starts; Each control has got into the preparation normal operating conditions, can call control module through the function selecting unit, and then starts corresponding axle control carrying out work.
Axle control module (4) is used to control the duty setting and the condition monitoring of each axis servomotor.After system start-up module (3) is accomplished; Each control has got into the preliminary work state; Then axle control module (4) can come to start respectively three basic coordinates axles and main shaft through an axle control basic module that calls in the base program library module (6), main realize axle control enable to start/close, the setting of axle control mode, encoder interfaces are selected, an axle current state is obtained function.The interface definition of axle control basic module is as shown in table 2:
Table 2 a control basic module signaling interface table
Subsidiary function selects module (5) to be used for the selection and the start-up control of numerically-controlled machine subsidiary function, like functional units such as the relevant hydraulic pressure of numerically-controlled machine, lubricated, chip removal, tool magazines.Yet different numerical control machine lathe; Its subsidiary function is not all identical, and hydraulic pressure in the subsidiary function for example is because differences such as hydraulic structure, hydraulic principle, configurations; Can cause different machine tool applications Different control logics to carry out hydrostatic control; Subsidiary function selects module (5) just to provide different types of lathe collocation form, and this configuration is done initial setting up by the machine operation person in the lathe data of HMI, and then selects the steering logic of the subsidiary function of suitable this lathe.The machine operation person has only correctly disposed each item function of numerically-controlled machine in HMI after, this numerically-controlled machine just can enter into normal operating conditions.For the control of three basic coordinates axles and main shaft, only need to change startup and the corresponding state prison that the corresponding interface signal variable just can be realized axle, can control the startup and the monitoring of corresponding axis through function selecting module (5).Two Hydraulic Stations are arranged on the numerically-controlled machine in this example, be respectively applied for control numerically-controlled machine Z-axis balanced load and cutter unclamp/clamp control.As a same reason, the monitoring of the startup of these two Hydraulic Stations and coherent signal also realizes through function selecting module (5).The Hydraulic Station control here is to realize through the hydraulic pressure basic functional blocks of calling in the base program library module (6), calls startup and the condition monitoring that the hydraulic pressure basic functional blocks just can realize the Hydraulic Station of these two difference in functionalitys through twice.The interface definition of hydraulic pressure basic functional blocks is seen table 3.
Table 3 hydraulic pressure basic functional blocks signaling interface table
Basic function library module (6) is the steering logic piece that has encapsulated pairing each sub-function after the numerically-controlled machine Function Decomposition; Select module (5) to carry out data processing through transferring inner storage data of PLC and system start-up module (3), axle control module (4) and subsidiary function, select and the sub-steering logic piece that starts in the basic function library module (6) according to the difference configuration (this configuration is done initial setting up by the operator in the lathe data of HMI) of different lathes.
Output signal map module (7) is used for selecting the logic operation result of module (5) to export to actual performance element through the intermediate storage variable system start-up module (3), axle control module (4), subsidiary function, to realize the various instruction actions of numerically-controlled machine.Main processing and system start-up in this is given an example, axle control and the relevant output signal of Hydraulic Station control.Give performance elements such as motor, hydraulic valve, air valve through the intermediate storage variable assignments with these results.
Claims (6)
1. modular structure that is applied to the numerically-controlled machine control system; Power module, numerically-controlled machine man-machine interface pass through to drive bus and device bus and digital control system NCU unit UNICOM respectively through MPI bus, digital control system servo unit; Digital control system NCU unit is through the input of profibus bus UNICOM, output module; It is characterized in that being encapsulated in each function program in the PLC processor of numerically-controlled machine control system in each functional module, the input of each module in PLC pedestal plate, output terminal are through data bus and power bus and the mutual corresponding connection of each pin of digital control system PLC processor and power module; The PLC internal storage region of native system is provided with the function selecting number of parameters and checks module (1), and its output terminal connects input signal mapping block (2); The output terminal of input signal mapping block (2) connects basic function library module (6) part; Basic function library module (6) part has comprised each sub-function module of program for numerical tool operation, and system start-up module (3) wherein, axle control module (4) and subsidiary function select module 5 all with basic function library module (6) input, output interface to be arranged; The output terminal of basic function library module (6) part connects output signal map module (7).
2. the modular structure that is applied to the numerically-controlled machine control system according to claim 1; It is characterized in that input signal mapping block (2) is used for receiving function and selects number of parameters to check the dynamic input signal of module (1); While is according to the needs of practical application; Optionally part real input signal and storage inside data are carried out logical process; At last the logical consequence of actual input signal and needs is exported to the storage data of basic function library module (6) part as PLC inside, PLC carries out the data logical process through these storage data and system start-up module (3), axle control module (4), function selecting module (5).
3. the modular structure that is applied to the numerically-controlled machine control system according to claim 1; It is characterized in that system start-up module (3) is used for system initialization; Be mainly PLC and NC exchanges data, servo-drive system on/monitoring of following electric control and servo module internal state, this module is the precondition of a control module (4) operate as normal.
4. the modular structure that is applied to the numerically-controlled machine control system according to claim 1; It is characterized in that a control module (4) is used to control the duty setting and the condition monitoring of each axis servomotor, realize axle control enable to start/close, the setting of axle control mode, encoder interfaces are selected, an axle current state information obtains function.
5. the modular structure that is applied to the numerically-controlled machine control system according to claim 1; It is characterized in that subsidiary function selects module (5) to be used for the selection and the start-up control of numerically-controlled machine subsidiary function, subsidiary function comprises the relevant hydraulic pressure of numerically-controlled machine, lubricated, chip removal, tool magazine etc.; According to different types of numerically-controlled machine; Subsidiary function selection module (5) has disposed the Different control logic and has carried out hydraulic pressure, lubricated control; Supply the machine operation person in the lathe data of HMI, to do initial setting up, and then select the logic control of the subsidiary function of suitable this lathe.
6. the modular structure that is applied to the numerically-controlled machine control system according to claim 1; It is characterized in that exporting signal map module (7) and be used for selecting the logic operation result of module (5) to export to motor, hydraulic valve, each performance element of air valve system start-up module (3), axle control module (4), subsidiary function, to realize the various instruction actions of numerically-controlled machine through the intermediate storage variable.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221828A (en) * | 2011-05-04 | 2011-10-19 | 沈阳机床（集团）设计研究院有限公司 | Control program modularization system for numerical control machine |
| CN104281100A (en) * | 2013-07-02 | 2015-01-14 | 北京耐威徐激光技术开发有限责任公司 | Integrated numerical control system for numerical control equipment |
| CN113050542A (en) * | 2021-03-24 | 2021-06-29 | 武汉科技大学 | Method for distinguishing machining state of numerical control machine tool |
-
2011
- 2011-05-04 CN CN2011201376381U patent/CN202196294U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221828A (en) * | 2011-05-04 | 2011-10-19 | 沈阳机床（集团）设计研究院有限公司 | Control program modularization system for numerical control machine |
| CN102221828B (en) * | 2011-05-04 | 2013-02-13 | 沈阳机床（集团）设计研究院有限公司 | Control program modularization system for numerical control machine |
| CN104281100A (en) * | 2013-07-02 | 2015-01-14 | 北京耐威徐激光技术开发有限责任公司 | Integrated numerical control system for numerical control equipment |
| CN113050542A (en) * | 2021-03-24 | 2021-06-29 | 武汉科技大学 | Method for distinguishing machining state of numerical control machine tool |
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