CN107520752A - A kind of high precision numerical control camshaft grinding machine control system - Google Patents
A kind of high precision numerical control camshaft grinding machine control system Download PDFInfo
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- CN107520752A CN107520752A CN201610457073.2A CN201610457073A CN107520752A CN 107520752 A CN107520752 A CN 107520752A CN 201610457073 A CN201610457073 A CN 201610457073A CN 107520752 A CN107520752 A CN 107520752A
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- control
- control system
- grinding machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
- B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
- B24B19/125—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts electrically controlled, e.g. numerically controlled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A kind of high precision numerical control camshaft grinding machine control system, using the control architecture of upper and lower machine, it is collectively formed by opening architecture motion control card and IPC machines.This motion control card, as CPU, has very strong motion control and PLC control abilities generally from high-speed dsp.The running status of system is monitored in real time, the error message of extract real-time system and various abnormal informations, be easy to self adjustment of system to ensure machining accuracy and system safety.The control system has the advantages that safe and reliable, automaticity is high and detection range is wide.
Description
Art
The present invention relates to a kind of high precision numerical control camshaft grinding machine control system, suitable for mechanical field.
Background technology
With the high speed development of Global Auto industry so that increasing to the demand of camshaft.Camshaft is a crucial basic components for automobile, it is installed in engine, controls the air inlet and exhaust of cylinder, and a cylinder is controlled by an air inlet and an exhaust cam, it is widely used in petrol engine and diesel engine, such as motorcycle, automobile, train, truck.Each camshaft is made up of several cams, and such as four cylinder engine, a camshaft is made up of eight cams.It is shaped as peach-shaped to each cam, and by basic circle and many conic sections, cubic curve and circular arc composition, its closed curve formed are referred to as formation curve.The line style error of formation curve will directly affect engine cylinder fuel combustion quality, and then influence function of the engine.Each camshaft will pass through could complete to more than the 20 individual process such as the car of blank, milling, brill, corase grind, fine grinding.Camshaft grinding machine is mainly used in the processing of the vital part camshaft in automobile, motorcycle and internal combustion engine industry.It is mainly used to complete camshaft last process:Each cam on corase grind, fine grinding camshaft.
The processing of China's camshaft also uses traditional direct copy processing mode mostly, and crudy is influenceed by master form mechanism, and cam profile is difficult to be guaranteed, and constrains the development of auto industry to a certain extent.But only a few countries will appreciate that digital-control camshaft grinding machine technology at present, therefore lathe price is expensive, and platform valency is up to 60 ~ 800,000 dollars, and domestic enterprise can not typically bear.Therefore, it is necessary to develop the digital-control camshaft grinding machine in China oneself, emphasis is CNC System for Cam Shaft Grinding Machine, to meet the needs of the national economic development.
The content of the invention
The present invention proposes a kind of high precision numerical control camshaft grinding machine control system, and the running status of system is monitored in real time, the error message of extract real-time system and various abnormal informations, is easy to self adjustment of system to ensure machining accuracy and system safety.The control system has the advantages that safe and reliable, automaticity is high and detection range is wide.
The technical solution adopted in the present invention is：
The control system uses the control architecture of upper and lower machine, and it is collectively formed by opening architecture motion control card and IPC machines.This motion control card, as CPU, has very strong motion control and PLC control abilities generally from high-speed dsp.An inherently digital control system, can be used alone.Control system of the function library that it is opened for user under windows platform needed for self-developing construction.Thus this open architecture motion control card is widely used in automated manufacturing control every field.The MAZATROL that the PMAC-NC digital control systems that are constructed such as DeltaTau companies of the U.S. with PMAC multi-axis motion control cards, the MELDAS-MAGIC 64 of Mitsubishi Electric of Japanese MAZAK companies are constructed
640 CNC etc..By being then based on the control system of high-speed dsp and High Precision Crystal Oscillator, it can meet the needs of high speed, the high-speed computation of high-precision grinder and high-precision servo control.
The control system selects the PCIX-202 cards of Pro-Dex companies of the U.S..PCIX series is the High Performance Motion Control card based on pci bus, and wherein PCIX-202 can control two axle steppings and two axle servomotors.The characteristics of PCIX-202 cards：Optoisolated input/output, positive and negative limit switch and origin signal input, and the input of differential encoder feedback signal；Separately or simultaneously moved per axle;Per the lasting line interpolation of axle；Circular interpolation, backslash compensation, self-defined, parabola, S curve and straight path profile；It is compatible with I068-M peripheral boards；Electromagnetic gear is furnished with WIN95/98/
Dynamic link library under NT/2000/XP, facilitate client to write the application software of oneself and debugging demo disk demo software is provided, this card function can be demonstrated, facilitate client's testing and control card and motor driven systems.
In order to ensure the dynamic characteristic of work spindle, C axles must use the servomotor of high torque (HT)/ratio of inertias.In view of mechanical structure and the requirement of the range of speeds of workpiece, using the large inertia direct drive servovalve of PAKER companies.It can omit mechanical deceleration device, reduce the feedback resolutions and control accuracy for due to driving error caused by deceleration device, also meeting needs.
The control system develops the application program based on MFC in VC++6.0, has open and multitask, program code is relatively fewer, reliable using the development environments of VC++ 6.0 based on windows platform.
The software configuration of the control system is broadly divided into 3 host computer management program, upper and lower bit walk program and motion control program big parts, and each big module is divided into several subroutine modules again.
The interpolation calculating of the processing curve and technique are set：The characteristics of motion of two axles is obtained using special interpolation algorithm, corresponding action could be completed by SERVO CONTROL, ensures the realization of uniformly linear.The setting of some parameters is carried out simultaneously, include the setting of camshaft model, camshaft overhead cam number, the lift table of cam, X-axis speed, Z axis speed, C rotating speeds, grinding speed etc..
All data that the generation of the process data includes parameter setting with editor generate, the contour accuracy of cam after analysis processing, and by the theoretical profile of cam compared with the actual cam contour after being superimposed the grinding of calculation error and interpolation error, and analysis result is provided, result can directly be printed or be carried out human-edited.
The beneficial effects of the invention are as follows：The control system is monitored in real time to the running status of system, the error message of extract real-time system and various abnormal informations, is easy to self adjustment of system to ensure machining accuracy and system safety.The control system has the advantages that safe and reliable, automaticity is high and detection range is wide.
Brief description of the drawings
Fig. 1 is the Pneumatic liquid supercharging power system architecture figure of the present invention.
Fig. 2 is the system software structure figure of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, control system uses the control architecture of upper and lower machine, and it is collectively formed by opening architecture motion control card and IPC machines.This motion control card, as CPU, has very strong motion control and PLC control abilities generally from high-speed dsp.An inherently digital control system, can be used alone.Control system of the function library that it is opened for user under windows platform needed for self-developing construction.Thus this open architecture motion control card is widely used in automated manufacturing control every field.The MAZATROL that the PMAC-NC digital control systems that are constructed such as DeltaTau companies of the U.S. with PMAC multi-axis motion control cards, the MELDAS-MAGIC 64 of Mitsubishi Electric of Japanese MAZAK companies are constructed
640 CNC etc..By being then based on the control system of high-speed dsp and High Precision Crystal Oscillator, it can meet the needs of high speed, the high-speed computation of high-precision grinder and high-precision servo control.
Control system is blocked from the PCIx -202 of Pro-Dex companies of the U.S..PCIX series is the High Performance Motion Control card based on pci bus, and wherein PCIX-202 can control two axle steppings and two axle servomotors.The characteristics of PCIX-202 cards：Optoisolated input/output, positive and negative limit switch and origin signal input, and the input of differential encoder feedback signal；Separately or simultaneously moved per axle;Per the lasting line interpolation of axle；Circular interpolation, backslash compensation, self-defined, parabola, s curves and straight path profile；It is compatible with I068-M peripheral boards；Electromagnetic gear is furnished with WIN95/98/
Dynamic link library under NT/2000/XP, facilitate client to write the application software of oneself and debugging demo disk demo software is provided, this card function can be demonstrated, facilitate client's testing and control card and motor driven systems.
In order to ensure the dynamic characteristic of work spindle, C axles must use the servomotor of high torque (HT)/ratio of inertias.In view of mechanical structure and the requirement of the range of speeds of workpiece, using the large inertia direct drive servovalve of PAKER companies.It can omit mechanical deceleration device, reduce the feedback resolutions and control accuracy for due to driving error caused by deceleration device, also meeting needs.
Such as Fig. 2, control system develops the application program based on MFC in VC++6.0, has open and multitask, program code is relatively fewer, reliable using the development environments of VC++ 6.0 based on windows platform.As space is limited, only the software configuration of system is introduced herein.It is broadly divided into 3 host computer management program, upper and lower bit walk program and motion control program big parts.As can be seen that each big module is divided into several subroutine modules again from software architecture diagram.
The interpolation calculating of processing curve and technique are set:The characteristics of motion of two axles is obtained using special interpolation algorithm, corresponding action could be completed by SERVO CONTROL, ensures the realization of uniformly linear.The setting of some parameters is carried out simultaneously, include the setting of camshaft model, camshaft overhead cam number, the lift table of cam, X-axis speed, Z axis speed, C rotating speeds, grinding speed etc..
The generation of process data and editor:All data generation including parameter setting, the contour accuracy of cam after analysis processing, and by the theoretical profile of cam compared with the actual cam contour after being superimposed the grinding of calculation error and interpolation error, and provide analysis result.Result can directly be printed or be carried out human-edited.
Document management：System-program code, process data etc. are introduced and managed, allows system by normal program operation (introducing NC programs or editor, program display, modification, file preservation, compiling).
The generation of process data and editor：All data generation including parameter setting, the contour accuracy of cam after analysis processing, and by the theoretical profile of cam compared with the actual cam contour after being superimposed the grinding of calculation error and interpolation error, and provide analysis result.Result can directly be printed or be carried out human-edited.
Auxiliary equipment management：Complete Oil pump electrical machinery, cooling motor, dust sucting motor startup and judge each motor whether normal operation, corresponding processing is done if no normal operation.
System debug：It is mainly used in joint connection in site debugging, performance test of system etc..
The system failure and safety management：The removing of various alarm signals is completed, including:Situations such as frequency converter is alarmed, and servo-driver alarm and each feed shaft stroke exceed is handled, while the urgent abnormal conditions of system are made with real-time processing, ensures system and the safety of people.
Cam cutting：Front and rear top by cam axis clamping, workbench moves along Z axis to be started to knife, camshaft rotation to knife, emery wheel F.F., cam contour processing.After the completion of a cam cutting, emery wheel rewind, workbench moves along Z axis starts next fabrication cycles, and provides the time used in a fabrication cycles.
Claims (6)
1. a kind of high precision numerical control camshaft grinding machine control system, it is characterized in that：The control system uses the control architecture of upper and lower machine, and it is collectively formed by opening architecture motion control card and IPC machines, and this motion control card, as CPU, has very strong motion control and PLC control abilities generally from high-speed dsp.
2. a kind of high precision numerical control camshaft grinding machine control system according to claim 1, it is characterized in that：The control system selects the PCIX-202 cards of Pro-Dex companies of the U.S., and PCIX series is the High Performance Motion Control card based on pci bus, and wherein PCIX-202 can control two axle steppings and two axle servomotors.
3. a kind of high precision numerical control camshaft grinding machine control system according to claim 1, it is characterized in that：The control system uses the large inertia direct drive servovalve of PAKER companies, and it can omit mechanical deceleration device, reduce the feedback resolutions and control accuracy for due to driving error caused by deceleration device, also meeting needs.
4. a kind of high precision numerical control camshaft grinding machine control system according to claim 1, it is characterized in that：The control system develops the application program based on MFC in VC++6.0, has open and multitask using the development environments of VC++ 6.0 based on windows platform, program code is relatively fewer, it is reliable, as space is limited, only the software configuration of system is introduced herein.
5. a kind of high precision numerical control camshaft grinding machine control system according to claim 1, it is characterized in that：The software configuration of the control system is broadly divided into 3 host computer management program, upper and lower bit walk program and motion control program big parts, and each big module is divided into several subroutine modules again.
6. a kind of high precision numerical control camshaft grinding machine control system according to claim 1, it is characterized in that：All data that the generation of the process data includes parameter setting with editor generate, the contour accuracy of cam after analysis processing, and by the theoretical profile of cam compared with the actual cam contour after being superimposed the grinding of calculation error and interpolation error, and analysis result is provided, result can directly be printed or be carried out human-edited.
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| CN201610457073.2A CN107520752A (en) | 2016-06-22 | 2016-06-22 | A kind of high precision numerical control camshaft grinding machine control system |
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| CN201610457073.2A CN107520752A (en) | 2016-06-22 | 2016-06-22 | A kind of high precision numerical control camshaft grinding machine control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085794A (en) * | 2018-09-14 | 2018-12-25 | 安徽创弘精密机械有限公司 | A kind of Control System of NC Machine |
| CN110170886A (en) * | 2019-04-19 | 2019-08-27 | 湖南师范大学 | A kind of Camshaft Grinding processing method based on T-S fuzzy control |
| TWI789926B (en) * | 2021-09-28 | 2023-01-11 | 中國砂輪企業股份有限公司 | Grinding system, grinding states sensing system, database and method thereof |
-
2016
- 2016-06-22 CN CN201610457073.2A patent/CN107520752A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085794A (en) * | 2018-09-14 | 2018-12-25 | 安徽创弘精密机械有限公司 | A kind of Control System of NC Machine |
| CN110170886A (en) * | 2019-04-19 | 2019-08-27 | 湖南师范大学 | A kind of Camshaft Grinding processing method based on T-S fuzzy control |
| CN110170886B (en) * | 2019-04-19 | 2021-01-19 | 湖南师范大学 | Camshaft grinding machining method based on T-S fuzzy control |
| TWI789926B (en) * | 2021-09-28 | 2023-01-11 | 中國砂輪企業股份有限公司 | Grinding system, grinding states sensing system, database and method thereof |
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Application publication date: 20171229 |
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