CN103419077B - Novel high finishing grinding tooth digital control system - Google Patents
Novel high finishing grinding tooth digital control system Download PDFInfo
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Abstract
The invention discloses a kind of novel high finishing grinding tooth digital control system, it comprises Split type machine box, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit, described Split type machine box comprises multiple independent case body that are arranged side by side, described AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit correspondence are arranged in independent case body corresponding thereto, and interconnect; It is ingenious, reasonable that the present invention designs, and adopts Split module structural design, and according to the different reasonable layout position relationships of function, strong and weak electricity and power consumption, good operating stability, and be easy to control operation and line service, effectively increase work efficiency; And possess roll flute and fit function, and can carry out dynamic balancing monitoring to tooth and emery wheel in real time, realize and make in time finishing and compensation, complete grinding action with high efficiency, high accuracy, effectively ensure product quality, be beneficial to wide popularization and application.
Description
Technical field
The present invention relates to Computerized Numerical Control technology field, particularly a kind of novel high finishing grinding tooth digital control system.
Background technology
The digital control system that the gear grinding machines such as worm abrasion wheel or formed grinding wheel of current domestic same specification are equipped with is external standard digital control system (as Siemens, Japan fanuc etc.), although the versatility of this standard digital control system is high, function is a lot, but be not the system of researching and developing for a certain lathe specially, both can be for gear grinding machines, also can be for lathes such as lathe, milling machine, grinding machines. Make like this controlled and professional relative poor to gear-grinding machine of this digital control system, cannot allow gear grinding machines realize to be in use simple and easy to use, simple operation, real-time high-efficiency to possess again high grinding accuracy simultaneously. Even more important a bit, the price of these foreign systems is very expensive, approaches the cost of a numerically controlled tooth grinding machine 40%. Once spend the guarantee period, while breaking down, downtime is relatively long, and maintenance cost is high.
Standard universal type digital control system is taking a CPU as core, by bus mode, other multiple modules is controlled. Each module all can realize the control to single axle, thereby the multiple identical modules of the system integration realize the control to multiple axles. To different classes of lathe, CPU uses different software control algorithms. With gear grinding machine with worm grinding wheel, CPU calls inner 4 hardware modules and realizes the control to 4 axles, and 4 axles relation of following up in grinding process relies on the in house software algorithm of CPU equally. This in house software algorithm is by fixed routine of development and Design personnel, and secondary development person or user are difficult to deeply wherein carry out complex calculation, and the limited function code that can only provide by it does external arithmetic, is difficult to arrive the high-precision calculating that grinding requires. Especially the requirement of gear grinding machines grinding process is very high, requires on the one hand stock removal accurately to control (comprising profile of tooth, transverse tooth thickness and helical angle etc.), accurately divides tooth to optional tooth number; On the other hand, due to the continuous wearing and tearing of emery wheel, require carrying out trace finishing, the real-time update control for grinding to it again of its positional information of the emery wheel after finishing after the certain number of times of the every grinding of emery wheel. This wherein at least relates to the control of two cover kinematic chains. Certainly, while carrying out the finishing of emery wheel profile, nearly biasing and the also more complicated of INTERPOLATION CONTROL OF PULSE itself of 3 diamond pens. These have all proposed very high requirement to general-purpose system above, so the necessity of Special grinding tooth digital control system is apparent.
Standard universal type digital control system advantage is that versatility is stronger, algorithm that can be different for dissimilar Machine Tool design, and do not need hardware to revise in a large number. But its advantage is to designer itself mostly, user is used without any effect. And because it adopts that software algorithm control time delay is large, low-response (software is processed generally more than ps level, and hardware handles can reach ns level), cause its precision to improve. For gear grinding machines, precision is generally divided into 1-12 level, and grade point is less, and precision is higher. Use standard universal type digital control system can reach 5-6 level, and use tailored version digital control system of the present invention can reach more than 3 grades, if when less demanding to grinding efficiency, its grinding accuracy can reach 2 grades or 1 grade. And integrated multiple functional modules are not whole work on hardware, cause the waste of resource greatly.
Also the realization of some control program is that roll flute and fit are realized respectively on two lathes, and roll flute processing is carried out in two or many cooperations, and this efficiency is low, has high input; Also have some schemes to adopt two cover system control a machine tool, a set of independent control wheel grinding, finishing after another set of control abrasion of grinding wheel, grinding data and trimming data are fixed or according to the rule of agreement, recycling handshake realizes the SECO of grinding and finishing. This scheme not only efficiency is low, lacks flexibility, and signal is shaken hands and the fault rate of communication is high.
Therefore, need to research and develop a kind of working (machining) efficiency fast, precision is high, and good stability and flexibility are high, simple to operate, and novel high finishing grinding tooth digital control system applied widely is for working as the required of generation.
Summary of the invention
For above-mentioned deficiency, the object of the invention is to, provide a kind of structural design ingenious, reasonable, working (machining) efficiency is fast, and precision is high, and simple to operate, and flexibility is high, the novel high finishing grinding tooth digital control system of good stability.
For achieving the above object, technical scheme provided by the present invention is: a kind of novel high finishing grinding tooth digital control system, it comprises Split type machine box, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit, described Split type machine box comprises multiple independent case body that are arranged side by side, described AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit correspondence are arranged in independent case body corresponding thereto, and interconnect.
As a modification of the present invention, described main control numerical control unit and power drive unit comprise interconnective signal receiving processing module, task processing module, interpolation module, electronic gear proportion module, position control module and power drive amplification module.
As a modification of the present invention, described signal receiving processing module is used for receiving lathe feedback signal and the processing of Machine-Tool Control signal obtains the required motor encoder signal of system rear class module, linear encoder signal and switch input signal.
As a modification of the present invention, described task processing module has the mode of operation of automated manner, manual mode, handwheel mode and programming mode, and this task processing module comprises carries out grinding unit, crushing operating unit and the real-time monitoring unit of grinding wheel dynamic balance.
As a modification of the present invention, described interpolation module is according to linear encoder signal and the switch input signal of the output of signal receiving processing module, and the computing of interpolation information by error-detecting, diamond pen dressing track and grinding track, this interpolation module computing draws regulating error amount and interpolation output pulse, and outgoing position pulse signal, deposit regulating error amount and interpolation output pulse data in shared data bank simultaneously, with the positional information of real-time update grinding interpolation, realize the accurate control to every cutter stock removal.
As a modification of the present invention, described electronic gear proportion module receives the motor encoder signal of task processing module output according to signal and the position pulse signal of interpolation module output passes through the processing of frequency multiplication frequency division, output emery wheel feeding signal, workpiece axial feed signal and workpiece rotating signal.
As a modification of the present invention, described position control module is according to the emery wheel feeding signal receiving, workpiece rotating signal and the main control quantity that output is processed in interpolation output pulse is carried out to position coordinates compensation and repair.
As a modification of the present invention, described power drive amplification module, according to the regulating error amount and the main control quantity that receive, amplifies by system master amount processed being carried out to suitable gain, and output is in order to drive the signal of lathe.
As a modification of the present invention, described machine feedback signal comprises emery wheel X-axis motor encoder signal, workpiece C spindle motor code device signal, Z axis code device signal and B shaft encoder signals; Described motor encoder signal comprises emery wheel feeding pulse signal, workpiece rotating signal and axial feed pulse signal.
As a modification of the present invention, it also comprises signal input output interface module and digitized positions control panel, described power drive unit, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit, signal input output interface module and digitized positions control panel are successively set in corresponding independent case body according to order from left to right, and interconnect.
Beneficial effect of the present invention is: the present invention designs ingenious, reasonable, adopt Split module structural design, and according to the different reasonable layout position relationships of function, strong and weak electricity and power consumption, good operating stability, and be easy to control operation and line service, effectively increase work efficiency; And possess roll flute and fit function, and can carry out dynamic balancing monitoring to tooth and emery wheel in real time, realize and make in time finishing and compensation, complete grinding action with high efficiency, high accuracy, effectively ensure product quality, be beneficial to wide popularization and application.
The present invention adopts Control of AC Servo Drives control workpiece rotating shaft, simultaneously, because system of the present invention itself adopts extensive hardware integration circuit, and apply frequency locking Phase Lock Technique, make roll flute function under system control of the present invention reach the lathe of the same type grinding accuracy that is beyond one's reach. Mean accuracy, than product Senior Two to three grade of the same type, can be realized roll flute, fit integrated function with the grinding machine bed of system support of the present invention, possesses automatically tooth and grinding wheel dynamic balance real time monitoring function, can realize efficient, high-precision grinding processing. Specifically there is following advantage.
1, the novel high finishing grinding tooth digital control system distinguishing feature of the present invention is computerization, and the modularization of driving is controlled and the digitlization that drives interface. Its hardware overall structure is more simple, compact, modularization; Software content is abundanter, with better function.
2, the novel high finishing grinding tooth digital control system of the present invention is obviously better than domestic product of the same type to the control efficiency of gear grinding machines, and the lathe of the supporting control of this novel high finishing grinding tooth digital control system, and the processing precision of products of gear grinding machines is than the high 2-3 level of product of the same type. (gear grinding machines precision is generally divided into 1-12 level, and grade point is less, and precision is higher. Use standard universal type digital control system can reach 6 grades, and use the novel high finishing grinding tooth digital control system of the present invention can reach more than 4 grades).
3, the novel high finishing grinding tooth digital control system of the present invention is pointed for gear grinding machines, specificity is strong, and domestic other products all adopt standard universal system at present, from the utilization rate to systemic-function, the utilization rate of other like products is very low, has virtually caused the waste in technology, resource. The novel high finishing grinding tooth digital control system of the present invention is for these a kind of type specialized designs research and development of gear grinding machines, and resource utilization is high, is simple and easy to use, and cost performance is high, is especially applicable to domestic user.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Brief description of the drawings
Fig. 1 is schematic block diagram of the present invention.
Fig. 2 is main control numerical control unit in the present invention and the schematic block diagram of power drive unit.
Fig. 3 is the structural representation of the Split type machine box in the present invention.
Fig. 4 is the structural representation of the digitized positions control panel in the present invention.
Fig. 5 is AC AC power supply module in the present invention and the schematic block diagram of DC direct-current switch power supply module.
Principle schematic when Fig. 6 is practical application of the present invention.
Detailed description of the invention
Referring to Fig. 1 to Fig. 6, the novel high finishing grinding tooth digital control system of one that the present embodiment provides, it comprises Split type machine box 1, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit, in the present embodiment, the novel high finishing grinding tooth digital control system of the present invention also comprises signal input output interface module and digitized positions control panel 2.
Described Split type machine box 1 comprises multiple independent case body that are arranged side by side, and is specially independent case body 11, independent case body 12, independent case body 13, independent case body 14, independent case body 15 and independent case body 16.
According to function, strong and weak electricity and power consumption difference, described power drive unit, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit, signal input output interface module and digitized positions control panel 2 are successively set in corresponding independent case body according to order from left to right, and interconnect. Be arranged in independent case body 11 by power drive unit, AC AC power supply module is arranged in independent case body 12, DC direct-current switch power supply module is arranged in independent case body 13, main control numerical control unit is arranged in independent case body 14, signal input output interface module is arranged in independent case body 15, digitized positions control panel 2 is arranged in independent case body 16. Each functional module adopts Split module structural design, good operating stability, and be easy to control operation and line service, effectively increase work efficiency.
Novel high finishing grinding tooth digital control system is carried out Real Time Drive to lathe, the feedback of lathe is carried out to Real-Time Monitoring simultaneously, with this, controlled quentity controlled variable is adjusted, thereby between the system of realization and lathe, is formed a set of closed loop following control system. On the sidewall of described independent case body, level is provided with many ventilation slots.
Referring to Fig. 2, described main control numerical control unit and power drive unit comprise interconnective signal receiving processing module, task processing module, interpolation module, electronic gear proportion module, position control module and power drive amplification module. The integrated hardware using plug-in structure of each module is placed on mainboard.
Described signal receiving processing module is used for receiving lathe feedback signal and the processing of Machine-Tool Control signal obtains the required motor encoder signal of system rear class module, linear encoder signal (being generally grating scale) and switch input signal.
Described task processing module has the mode of operation of automated manner, manual mode, handwheel mode and programming mode, and this task processing module comprises carries out grinding unit, crushing operating unit and the real-time monitoring unit of grinding wheel dynamic balance. According to the functional characteristics of roll flute system, selectively actuatable mode is as automated manner, manual mode, handwheel mode and programming mode etc. Meanwhile, requiring to carry out respectively grinding, crushing operation and grinding wheel dynamic balance according to grinding function monitors in real time. Multiple tool point of cutter amount of grinding, crushing amount, grinding wheel diameter and emery wheel profile etc. are calculated automatically, and what gear hobbing was processed realizes functions such as teeth automatically. Meanwhile, this task processing module is responsible for the safety of lathe to carry out real-time monitor task, and receive the report for police service signal energy and alarm are shut down, and effectively protect the safety of operating personnel and lathe.
Described interpolation module is according to linear encoder signal and the switch input signal of the output of signal receiving processing module, and the computing of interpolation information (comprising the amount of feeding and feed speed etc.) by error-detecting, diamond pen dressing track and grinding track, this interpolation module computing draws regulating error amount and interpolation output pulse, and outgoing position pulse signal, deposit regulating error amount and interpolation output pulse data in shared data bank simultaneously, with the positional information of real-time update grinding interpolation, realize the accurate control to every cutter stock removal. Compared with traditional common digital control system, no longer need complicated artificial programming compensation to go to realize, the complexity problem asynchronous with data of having avoided better using occurs.
Described electronic gear proportion module receives the motor encoder signal of task processing module output according to signal and the position pulse signal of interpolation module output passes through the processing of frequency multiplication frequency division, output emery wheel feeding signal, workpiece axial feed signal and workpiece rotating signal.
Described position control module is according to the emery wheel feeding signal receiving, workpiece rotating signal and the main control quantity that output is processed in interpolation output pulse is carried out to position coordinates compensation and repair. Meanwhile, because roll flute and fit adopt shared roll flute data and the pattern of trimming data, digital control compensation more in time, more thorough.
Described power drive amplification module, according to the regulating error amount and the main control quantity that receive, amplifies by system master amount processed being carried out to suitable gain, and output is in order to drive the signal of lathe.
Described machine feedback signal comprises emery wheel X-axis motor encoder signal, workpiece C spindle motor code device signal, Z axis code device signal and B shaft encoder signals; Under particular case, closed-loop Control Shaft can be converted to half-closed loop control axle; damage as grating scale such as running into position probing feedback element; now closed-loop Control Shaft can be converted to half-closed loop control axle by amendment parameter; remove grating scale; use motor encoder as position probing feedback element; can this lathe of Interim use, greatly shorten downtime.
In running, the novel high finishing grinding tooth digital control system of the present invention detects grinding wheel dynamic balance signal, workpiece signal and other lathe signal in real time, makes taking grinding wheel dynamic balance signal, workpiece signal as core formation main pulse and feedback pulse according to the algorithm of design; Other lathe signal formation real-time interpolation pulses. Main pulse, feedback pulse and interpolation pulse enter after frequency locking phase locking unit, first interpolation impulsive synchronization is added to main pulse or feedback pulse, between the two-way pulse forming, carry out the comparison of phase place and frequency, finally obtaining difference is exactly the difference equivalent of the given action of lathe and actual act. This equivalent ingoing power drive amplification module is carried out to power amplification, just obtain the drive volume of next step action of lathe.
Described motor encoder signal comprises emery wheel feeding pulse signal, workpiece rotating signal and axial feed pulse signal, and eight channel axis control signals possess interchangeability, in the time that a certain motor encoder signal interface breaks down, this axle of maskable, shining upon a certain is not this axle with passage, and changing binding post can use.
Referring to Fig. 5, power supply processing unit in the novel high finishing grinding tooth digital control system of the present invention comprises AC AC power supply module and DC direct-current switch power supply module, only need outside that 380V three phase mains is provided, after AC AC power supply module and DC direct-current switch power supply resume module, for novel high other unit module of finishing grinding tooth digital control system of the present invention provides different working powers, these comprise the normal power demands such as 24V, 12V, 5V and common port.
Referring to Fig. 6, for the working control principle schematic of the novel high finishing grinding tooth digital control system of the present invention, figure medium plain emery wheel motor rotary encoder, 1,000,000 line code dishes (workpiece motor encoder), X-axis linear encoder, Z axis linear encoder and the automatic real-time monitoring device that tooth probe signals etc. is to machine feedback, by these feedback devices, control system has obtained the real time execution information of lathe.
The novel high finishing grinding tooth digital control system of the present invention obtains the Real-time Feedback of the real-time setting of grinding wheel drive mitor, workpiece motor the strict mathematical relationship of given pulse and feedback pulse after certain algorithm process, this two-way pulse is obtained after the phase-locked processing of frequency locking to feedback is carried out main regulation with the frequency-splitting between given after DA conversion, phase difference value is finely tuned after DA changes. Other as the encoder feedback such as Z axis, X-axis signal are all interpolation fine adjustment amounts. Machine-Tool Control signal is issued main control numerical control unit by host computer, and main control numerical control unit is taked corresponding actions with this. In the time that main control numerical control unit monitors grinding wheel dynamic balance abnormal signal, can intelligent decision call crushing module and repair in time and compensate, complete grinding action with high efficiency, high accuracy.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change and revise above-mentioned embodiment. Therefore, the present invention is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention. In addition, although used some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention, adopt the system of other structure same or analogous with it, all in protection domain of the present invention.
Claims (3)
1. a novel high finishing grinding tooth digital control system, it is characterized in that, it comprises Split type machine box, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit, described Split type machine box comprises multiple independent case body that are arranged side by side, described AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit and power drive unit correspondence are arranged in independent case body corresponding thereto, and interconnect;
Described main control numerical control unit and power drive unit comprise interconnective signal receiving processing module, task processing module, interpolation module, electronic gear proportion module, position control module and power drive amplification module;
Described signal receiving processing module is used for receiving lathe feedback signal and the processing of Machine-Tool Control signal obtains the required motor encoder signal of system rear class module, linear encoder signal and switch input signal;
Described task processing module has the mode of operation of automated manner, manual mode, handwheel mode and programming mode, and this task processing module comprises carries out grinding unit, crushing operating unit and the real-time monitoring unit of grinding wheel dynamic balance;
Described interpolation module is according to linear encoder signal and the switch input signal of the output of signal receiving processing module, and the computing of interpolation information by error-detecting, diamond pen dressing track and grinding track, this interpolation module computing draws regulating error amount and interpolation output pulse, and outgoing position pulse signal, deposit regulating error amount and interpolation output pulse data in shared data bank simultaneously, with the positional information of real-time update grinding interpolation, realize the accurate control to every cutter stock removal;
Described electronic gear proportion module receives the motor encoder signal of task processing module output according to signal and the position pulse signal of interpolation module output passes through the processing of frequency multiplication frequency division, output emery wheel feeding signal, workpiece axial feed signal and workpiece rotating signal;
Described position control module is according to the emery wheel feeding signal receiving, workpiece rotating signal and the main control quantity that output is processed in interpolation output pulse is carried out to position coordinates compensation and repair;
Described power drive amplification module, according to the regulating error amount and the main control quantity that receive, amplifies by system master amount processed being carried out to suitable gain, and output is in order to drive the signal of lathe.
2. novel high finishing grinding tooth digital control system according to claim 1, is characterized in that, described machine feedback signal comprises emery wheel X-axis motor encoder signal, workpiece C spindle motor code device signal, Z axis code device signal and B shaft encoder signals; Described motor encoder signal comprises emery wheel feeding pulse signal, workpiece rotating signal and axial feed pulse signal.
3. novel high finishing grinding tooth digital control system according to claim 1, it is characterized in that, it also comprises signal input output interface module and digitized positions control panel, described power drive unit, AC AC power supply module, DC direct-current switch power supply module, main control numerical control unit, signal input output interface module and digitized positions control panel are successively set in corresponding independent case body according to order from left to right, and interconnect.
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| CN105269080A (en) * | 2015-11-24 | 2016-01-27 | 天津第一机床总厂 | Numerical control gear shaper based on FANUC system |
| CN105553383B (en) * | 2015-12-25 | 2018-09-21 | 南京冠腾自动化科技有限公司 | Servo-driver super large gear ratio drive control method |
| CN108255130B (en) * | 2018-02-05 | 2020-11-27 | 重庆机床(集团)有限责任公司 | Control method for M value of gear grinding machine tool |
| CN108581051B (en) * | 2018-04-04 | 2019-09-24 | 浙江机电职业技术学院 | The adaptive sawtooth grinding method of saw blade gear grinding machine based on cloud |
| CN108388201B (en) * | 2018-04-17 | 2020-12-22 | 潍坊学院 | Automatic detection early warning system of numerical control machine tool and operation method thereof |
| CH715989B1 (en) * | 2019-03-22 | 2020-10-30 | Reishauer Ag | Process for continuous generating grinding of pre-cut workpieces. |
| JP7276832B2 (en) * | 2019-05-31 | 2023-05-18 | 株式会社呉英製作所 | Portable circulation filtration device |
| CN111570938A (en) * | 2020-05-27 | 2020-08-25 | 南京工程学院 | Workpiece spindle rotation servo driving system of numerical control gear hobbing machine tool |
| CN111515471B (en) * | 2020-05-28 | 2021-03-16 | 西门子（中国）有限公司 | Gear grinding machine and operation control method thereof |
| CN114200892A (en) * | 2021-11-01 | 2022-03-18 | 苏州谋迅智能科技有限公司 | Method and device for smooth output of interactive input device, storage medium and device |
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| CP02 | Change in the address of a patent holder |
Address after: 528400 101, no.43-1, Keji West Road, Torch Development Zone, Zhongshan City, Guangdong Province (application for residence) Patentee after: ZHONGSHAN MLTOR CNC TECHNOLOGY Co.,Ltd. Address before: 528400 Guangdong, Zhongshan Torch Development Zone, rich road, No. 5 Patentee before: ZHONGSHAN MLTOR CNC TECHNOLOGY Co.,Ltd. |