CN101530981B - Precise high-speed digital-controlled system of honing machine - Google Patents
Precise high-speed digital-controlled system of honing machine Download PDFInfo
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- CN101530981B CN101530981B CN2009101035401A CN200910103540A CN101530981B CN 101530981 B CN101530981 B CN 101530981B CN 2009101035401 A CN2009101035401 A CN 2009101035401A CN 200910103540 A CN200910103540 A CN 200910103540A CN 101530981 B CN101530981 B CN 101530981B
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Abstract
The invention discloses a precise high-speed digital-controlled system of honing machine, comprising an ARM microprocessor, a memory, a D/A conversion circuit, a pulse generation circuit, an orthogonal pulse counter, a multi-channel A/D conversion circuit, an LCD display and a control panel; wherein the D/A conversion circuit is connected with a voltage/current conversion circuit at output end; input end of the orthogonal pulse counter is respectively connected with difference/voltage conversion circuits; input end of the multi-channel A/D conversion circuit is connected with an amplification circuit; further, one input/output port of the ARM microprocessor is connected with an interface circuit. This invention adopts human-computer interaction interface, realizes simple structure and convenient as well as visual operation, and achieves multifunctional controls as movement and rotation of main shaft of the honing machine, micro-step driving of two feed mechanisms, three-way non-linkage control of working table and online detection; further, this invention is complete in function, high in control precision, low in cost, and applicable to national mechanical manufacturing field.
Description
Technical field
The present invention relates to a kind of digital control system, relate in particular to a kind of precise high-speed digital-controlled system of honing machine based on ARM microprocessor and μ C/OS-II real time operating system.
Background technology
In recent years, the employing honing technique that manufacturing industry was more and more general is to improve the accuracy of manufacture of component of machine.But China's honing machine especially manufacturing of high speed and precision honing machine is backward relatively.Honing machine spindle moves control and still adopts machinery or the control of hydraulic stroke case, complex structure, and control accuracy is poor, the reciprocating reversing precision≤± 5mm.Can not satisfy the requirement of high-precision part manufacturing such as the blind hole honing.
Using electro-hydraulic proportional servo valve control honing machine spindle to move, can largely simplify the frame for movement of honing machine, improve the reciprocal control accuracy of honing machine, is one of state-of-the-art technology of honing machine manufacturing.Rarely there are user and producer to utilize import PLC control electro-hydraulic proportional servo valve that honing machine is undergone technological transformation.But the honing machine of this repacking exists, and function is simple, cost is high, poor reliability, precision improve limited, the reciprocating reversing precision≤± 0.5mm; Many defectives such as man-machine interaction difference.Make the complete dependence on import of China's high speed and precision numerical control honing machine, but tens times even hundreds of times of the normally homemade honing machine price of the price of import honing machine.The blank of precise high-speed digital-controlled system of honing machine affects the raising of China's equipment manufacture integral level, has fettered the extensive use of honing technique.
Summary of the invention
The function that existing digital-controlled system of honing machine exists is simple, cost is high in order to solve, poor reliability, shortcoming that precision is low, and technical problem to be solved by this invention provides a kind of multi-functional, low-cost, reliability is high, control accuracy is high precise high-speed digital-controlled system of honing machine.
In order to solve the problems of the technologies described above, according to a technical scheme of the present invention, a kind of precise high-speed digital-controlled system of honing machine is provided, comprise ARM microprocessor, memory, D/A change-over circuit, pulse generating circuit, orthogonal pulses counter, multichannel A/D change-over circuit, LCD display, control panel, wherein
Described ARM microprocessor: the information processing and the data operation that carry out digital control system;
Described memory: the data when storing the operation of the program of above-mentioned ARM microprocessor and data and system;
LCD display: convert the digital information of described ARM microprocessor output to human character and the figure that can discern and show;
Control panel: receive the information of operator's input, output to described ARM microprocessor;
It is characterized in that: the output at described D/A change-over circuit connects voltage, input at described orthogonal pulses counter connects difference/voltage conversion circuit respectively, input at described multichannel A/D change-over circuit connects amplifying circuit, at an input/output port connecting interface circuit of described ARM microprocessor;
Described D/A change-over circuit: convert data signal to analog voltage signal and output to voltage;
Described voltage converts the voltage signal of D/A change-over circuit output to current signal, is input to electro-hydraulic proportional servo valve and frequency converter, as the control signal of electro-hydraulic proportional servo valve and the control signal of frequency converter;
Described pulse generating circuit: produce pulse, output to stepper motor driver respectively, the control step machine operation;
Described difference/voltage conversion circuit: the differential signal of received code device output, and convert voltage signal to and output to the orthogonal pulses counter;
Described orthogonal pulses counter: receive the voltage signal of difference/voltage conversion circuit output, the voltage signal that difference/voltage conversion circuit is exported converts position signalling to;
Described amplifying circuit: receive the analog signal of voltage sensor, current sensor, temperature sensor, pressure sensor, displacement transducer output, output to multichannel A/D change-over circuit after the amplification;
Described multichannel A/D change-over circuit: the analog signal conversion of amplifying circuit output is become data signal;
Described interface circuit: receive the switching signal of ARM microprocessor output, output to relay and three-dimensional workbench, simultaneously, interface circuit receives the switching signal of lathe output, outputs to the ARM microprocessor;
Wherein, described memory, D/A change-over circuit, pulse generating circuit, orthogonal pulses counter, multichannel A/D change-over circuit be arranged in the ARM microprocessor or the ARM microprocessor outside.
According to a preferred version of precise high-speed digital-controlled system of honing machine of the present invention, described pulse generating circuit adopts the pwm pulse generator of pulse width modulation.
A preferred version according to precise high-speed digital-controlled system of honing machine of the present invention, described difference/voltage conversion circuit comprises integrated circuit U35, wherein, integrated circuit U35 adopts the MAX3097 chip, the A end of described integrated circuit U35, A end, B end, B end, Z end, Z end are connected respectively to the output of encoder, and the OUTA end of described integrated circuit U35, OUTB end, OUTZ end are connected to the input of described orthogonal pulses counter.
According to a preferred version of precise high-speed digital-controlled system of honing machine of the present invention, described ARM microprocessor adopts the STM32F10x family chip of Cortex-M3 kernel.
A preferred version according to precise high-speed digital-controlled system of honing machine of the present invention, described voltage comprises photoelectrical coupler U38, triode Q18, Q19, resistance R 45～R50, operational amplifier U2D, U2C, wherein, one end of resistance R 50 is connected to an output of D/A change-over circuit, the other end of resistance R 50 is connected to the base stage of triode Q19, the grounded emitter of triode Q19, the colelctor electrode of triode Q19 connects the input of photoelectrical coupler U38, and the output output of photoelectrical coupler U38 is just being changeed control signal to frequency converter 14; One end of resistance R 47 is connected to an output of D/A change-over circuit, the other end of resistance R 47 is connected to the inverting input of operational amplifier U2D, the in-phase input end of operational amplifier U2D is by resistance R 49 ground connection, connect resistance R 46 between the inverting input of operational amplifier U2D and the output, the in-phase input end of the output concatenation operation amplifier U2C of operational amplifier U2D, the emitter stage of the inverting input of operational amplifier U2C and triode Q18 is connected power supply by resistance R 45 simultaneously, the output of operational amplifier U2C is by the base stage of resistance R 48 connection triode Q18, and the colelctor electrode output speed control signal of triode Q19 is to frequency converter.
The beneficial effect of precise high-speed digital-controlled system of honing machine of the present invention is: the present invention unites and has adopted the ARM microprocessor that has high speed performance and enrich interface, has the integrated level height, the circuit structure characteristic of simple; Employing has improved the Performance And Reliability of system based on the application software of μ C/OS-II real time operating system; The menu mode that carries out in conjunction with the honing technique parameter is programmed, adopt human-computer interaction interface, simple to operate, easy to use, directly perceived, can move honing machine spindle, rotate, multi-functional control such as micro-stepping driving of two feed mechanisms, the non-linkage work-table control of three-dimensional, online detection, have the advantages that function is complete, control accuracy is high, and cheap, be fit to very much China's machinery manufacturing industry and use, have great economic benefit and social benefit.
Description of drawings
Fig. 1 is the schematic block circuit diagram of precise high-speed digital-controlled system of honing machine of the present invention.
Fig. 2 is the circuit interface graph of a relation of precise high-speed digital-controlled system of honing machine of the present invention.
Fig. 3 is the circuit theory diagrams of ARM microprocessor 1 of the present invention.
Fig. 4 is the circuit theory diagrams of difference/voltage conversion circuit 7 of the present invention.
Fig. 5 is the circuit theory diagrams of interface circuit 8 of the present invention.
Fig. 6 is the circuit theory subgraph of voltage 21 of the present invention
Fig. 7 is the circuit theory diagrams of amplifying circuit 22 of the present invention.
Fig. 8 is the circuit theory diagrams of control panel 24 of the present invention.
Fig. 9 is the circuit theory diagrams of second memory 26 of the present invention.
Figure 10 is the circuit theory diagrams of LCD display 23 of the present invention.
Figure 11 is the circuit theory diagrams of RS232 interface circuit 27 of the present invention.
Figure 12 is the main program flow block diagram of ARM microprocessor 1 of the present invention.
Figure 13 is that moving back and forth of ARM microprocessor 1 of the present invention controlled the subprogram FB(flow block).
Figure 14 is the feeding control subprogram FB(flow block) of ARM microprocessor 1 of the present invention.
Figure 15 is the online detection subprogram FB(flow block) of ARM microprocessor 1 of the present invention.
The specific embodiment
Referring to Fig. 1, a kind of precise high-speed digital-controlled system of honing machine, adopting 32 risc processors of ARM Cortex-M3 kernel is hardware platform, μ C/OS-II real time operating system is the systems soft ware platform; Software is for μ C/OS-II and based on the application software of μ C/OS-II systems soft ware; Wherein,
Hardware circuit is made of ARM microprocessor 1, memory 2A, 2B, D/A change-over circuit 3A, 3B, pulse generating circuit 4A, 4B, orthogonal pulses counter 5A, 5B, 5C, multichannel A/D change-over circuit 6, difference/voltage conversion circuit 7, interface circuit 8, isolation change-over circuit 20, voltage 21, amplifying circuit 22, power circuit 25, second memory 26, RS232 interface circuit 27; Wherein: the output at described D/A change-over circuit 3A, 3B connects voltage 21, input at described orthogonal pulses counter 5A, 5B, 5C connects difference/voltage conversion circuit 7 respectively, input at described multichannel A/D change-over circuit 6 connects amplifying circuit 22, at an input/output port connecting interface circuit 8 of described ARM microprocessor 1; Wherein, D/A change-over circuit 3A, 3B circuit structure are identical; Pulse generating circuit 4A, 4B circuit structure are identical; Orthogonal pulses counter 5A, 5B, 5C circuit structure are identical;
Described ARM microprocessor 1 carries out the information processing and the data operation of digital control system;
Data when described memory 2A, 2B store the program of above-mentioned ARM microprocessor 1 and data and system's operation;
The digital information that LCD display 23 is exported described ARM microprocessor 1 converts human character and the figure that can discern to and shows;
Described D/A change-over circuit 3A, 3B convert data signal to analog voltage signal and output to voltage 21;
Described voltage 21 converts the voltage signal of D/A change-over circuit 3A, 3B output to current signal, is input to electro-hydraulic proportional servo valve 13 and frequency converter 14, as the control signal of electro-hydraulic proportional servo valve 13 and the control signal of frequency converter 14;
Described pulse generating circuit 4A, 4B produce pulse, output to stepper motor driver 11A, 11B respectively, control step motor 12A, 12B work;
The differential signal of described difference/voltage conversion circuit 7 received code device 9A, 9B, 9C output, and convert voltage signal to and output to orthogonal pulses counter 5A, 5B, 5C;
Described orthogonal pulses counter 5A, 5B, 5C receive the voltage signal of difference/voltage conversion circuit 7 outputs, and the voltage signal that difference/voltage conversion circuit 7 is exported converts position signalling to;
Described amplifying circuit 22 receives the analog signal of voltage sensor 10A, current sensor 10B, temperature sensor 10C, pressure sensor 10D, displacement transducer 10E output, outputs to multichannel A/D change-over circuit 6 after the amplification;
Described multichannel A/D change-over circuit 6 becomes data signal with the analog signal conversion of amplifying circuit 22 outputs;
Described interface circuit 8 receives the switching signal of ARM microprocessor 1 output, outputs to relay 17 and three-dimensional workbench 19, and simultaneously, interface circuit 8 receives the switching signal of lathe 18 outputs, outputs to ARM microprocessor 1;
Referring to Fig. 2, a kind of precise high-speed digital-controlled system of honing machine, adopting 32 risc processors of ARM Cortex-M3 kernel is hardware platform, μ C/OS-II real time operating system is the systems soft ware platform; Software is for μ C/OS-II and based on the application software of μ C/OS-II systems soft ware; Wherein,
Hardware circuit is made of ARM microprocessor 1, difference/voltage conversion circuit 7, interface circuit 8, isolation change-over circuit 20, voltage 21, amplifying circuit 22, power circuit 25, second memory 26, RS232 interface circuit 27; Wherein: in ARM microprocessor 1, be provided with memory 2A, 2B, D/A change-over circuit 3A, 3B, pulse generating circuit 4A, 4B, orthogonal pulses counter 5A, 5B, 5C, multichannel A/D change-over circuit 6; Output at described D/A change-over circuit 3A, 3B connects voltage 21, input at described orthogonal pulses counter 5A, 5B, 5C connects difference/voltage conversion circuit 7 respectively, input at described multichannel A/D change-over circuit 6 connects amplifying circuit 22, at an input/output port connecting interface circuit 8 of described ARM microprocessor 1; Wherein, D/A change-over circuit 3A, 3B circuit structure are identical; Pulse generating circuit 4A, 4B circuit structure are identical; Orthogonal pulses counter 5A, 5B, 5C circuit structure are identical;
Described ARM microprocessor 1 carries out the information processing and the data operation of digital control system;
Data when described memory 2A, 2B store the program of above-mentioned ARM microprocessor 1 and data and system's operation;
The digital information that LCD display 23 is exported described ARM microprocessor 1 converts human character and the figure that can discern to and shows;
Described D/A change- over circuit 3A, 3B convert data signal to analog voltage signal and output to voltage 21;
Described voltage 21 converts the voltage signal of D/A change- over circuit 3A, 3B output to current signal, is input to electro-hydraulic proportional servo valve 13 and frequency converter 14, as the control signal of electro-hydraulic proportional servo valve 13 and the control signal of frequency converter 14;
Described pulse generating circuit 4A, 4B produce pulse, output to stepper motor driver 11A, 11B respectively, control step motor 12A, 12B work;
The differential signal of described difference/voltage conversion circuit 7 received code device 9A, 9B, 9C output, and convert voltage signal to and output to orthogonal pulses counter 5A, 5B, 5C;
Described orthogonal pulses counter 5A, 5B, 5C receive the voltage signal of difference/voltage conversion circuit 7 outputs, and the voltage signal that difference/voltage conversion circuit 7 is exported converts position signalling to;
Described amplifying circuit 22 receives the analog signal of voltage sensor 10A, current sensor 10B, temperature sensor 10C, pressure sensor 10D, displacement transducer 10E output, outputs to multichannel A/D change-over circuit 6 after the amplification;
Described multichannel A/D change-over circuit 6 becomes data signal with the analog signal conversion of amplifying circuit 22 outputs;
Described interface circuit 8 receives the switching signal of ARM microprocessor 1 output, outputs to relay 17 and three-dimensional workbench 19, and simultaneously, interface circuit 8 receives the switching signal of lathe 18 outputs, outputs to ARM microprocessor 1;
Referring to Fig. 3, in the present embodiment, described ARM microprocessor 1 adopts the STM32F10x family chip of Cortex-M3 kernel; As: adopt 32 risc processor chip STM32F103ZE of ARM Cortex-M3 kernel, simultaneously, in ARM microprocessor 1, be provided with the program of Figure 12 to Figure 15.
In the present embodiment, described pulse generating circuit 4A, 4B adopt the pwm pulse generator of pulse width modulation.
Referring to Fig. 4, in the present embodiment, described difference/voltage conversion circuit is by integrated circuit U35, U36, U37, capacitor C 17, C18, C19 constitute, wherein,, adopt U36, U37 and all adopt and use the MAX3097 chip, the A end of described integrated circuit U35, A end, B end, B end, Z end, Z end are connected respectively to the output of encoder 9A, the OUTA end of described MAX3097 chip, OUTB end, OUTZ end are connected to the input of described orthogonal pulses counter 5A; The annexation of described integrated circuit U36, U37 and encoder and orthogonal pulses counter is not tired out and is stated with integrated circuit U35.
Referring to Fig. 5, Fig. 5 is the circuit theory diagrams of interface circuit 8 of the present invention.Described interface circuit 8 is made of photoelectrical coupler U3～U34, switching tube Q1～Q16, resistance R 8～R39.
Referring to Fig. 6, Fig. 6 is the circuit theory diagrams of voltage 21 of the present invention, described voltage 21 is by photoelectrical coupler U38, U39, triode Q17～Q20, resistance R 40～R51, operational amplifier U2A, U2B, U2C, U2D constitutes, wherein, one end of resistance R 50 is connected to an output of D/A change-over circuit, the other end of resistance R 50 is connected to the base stage of triode Q19, the grounded emitter of triode Q19, the colelctor electrode of triode Q19 connects the input of photoelectrical coupler U38, and the output output of photoelectrical coupler U38 is just being changeed control signal to frequency converter 14; One end of resistance R 47 is connected to an output of D/A change-over circuit, the other end of resistance R 47 is connected to the inverting input of operational amplifier U2D, the in-phase input end of operational amplifier U2D is by resistance R 49 ground connection, connect resistance R 46 between the inverting input of operational amplifier U2D and the output, the in-phase input end of the output concatenation operation amplifier U2C of operational amplifier U2D, the emitter stage of the inverting input of operational amplifier U2C and triode Q18 is connected power supply by resistance R 45 simultaneously, the output of operational amplifier U2C is by the base stage of resistance R 48 connection triode Q18, and the speed controling signal of the colelctor electrode output frequency converter 14 of triode Q19 is to frequency converter 14.In addition, the circuit theory that the reverse control signal of frequency converter 14 produces is with just changeing the circuit theory that control signal produces, not tired stating; The circuit theory that the control signal of electro-hydraulic proportional servo valve 13 produces is not tired out and is stated with the circuit theory of the speed controling signal generation of frequency converter 14.
Referring to Fig. 7, Fig. 7 is the circuit theory diagrams of amplifying circuit 22 of the present invention.Described amplifying circuit 22 has computing amplification circuit U45A, U45B, U46A, U46B, U47A, U47B, resistance R 56～R62 to constitute.
Referring to Fig. 8, Fig. 8 is the circuit theory diagrams of control panel 24 of the present invention.Described control panel 24 comprise integrated circuit U48, button S1～S64.
Fig. 9 is the circuit theory diagrams of second memory 26 of the present invention.Described second memory 26 comprises integrated circuit U41, and integrated circuit U41 can adopt EEPRAM 24LC256 chip.
Figure 10 is the circuit theory diagrams of LCD display 23 of the present invention.
Figure 11 is the circuit theory diagrams of RS232 interface circuit 27 of the present invention.
Digital-controlled system of honing machine of the present invention, closed-loop control is all adopted in the motion of main axle moving and two feed mechanisms; Three 16 orthogonal pulses counter 5A, 5B, 5C constitute three position scales with three encoder 9A, 9B, 9C; Three encoder 9A, 9B, 9C link to each other with two feed mechanisms of main axle moving mechanism and honing machine 28 respectively.The voltage sensor 10A of lathe, current sensor 10B, temperature sensor 10C, pressure sensor 10D, the analog signal of displacement transducer 10E output is through amplifying, be input to ARM microprocessor 1 after the A/D conversion, and ARM microprocessor 1 receives user's operational order of control panel 24 outputs, carry out corresponding nc program, and the machining information of user input and the data signal of multichannel A/D change-over circuit 6 outputs handled, and generation digital controlled signal, digital controlled signal is through D/A change-over circuit 3A, 3B converts analog signal to and exports electro-hydraulic proportional servo valve 13 and frequency converter 14 to, and then control electro-hydraulic proportional servo valve 13 drives, and oil cylinder 15 moves back and forth and spindle motor 14 rotations of control frequency converter 14 driving honing machines 28; Simultaneously, digital controlled signal also can convert pulse signal to through pulse generating circuit 4A, 4B and export stepper motor driver 11A, 11B to, and control step motor 12A, 12B drive feed mechanism; The speed of main axle moving and feed mechanism motion and position are gathered by encoder 9A, 9B, 9C respectively, export to orthogonal pulses counter 5A, 5B, 5C after handling via difference/voltage conversion circuit 7, and then feed back to ARM microprocessor 1, constitute closed-loop control; ARM microprocessor 1 periodically reads the position data of main shaft and feed mechanism, calculates the poor of present speed and position and instruction speed and position, by the digital PID routine processes, exports accurate corrected signal, guarantees the accurate of control.Digital controlled signal exports interface circuit 8 to after isolating change-over circuit 20 conversions, ARM microprocessor 1 is accepted the switching signal that lathe 17 is exported by interface circuit 8, and ARM microprocessor 1 is by interface circuit 8 control relays 17 and 19 actions of three-dimensional workbench.
Use this system in conjunction with electro-hydraulic proportional servo valve, variable-frequency motor, the little feeding technology of stepper motor, encoder, displacement transducer etc. can realize to honing machine spindle move, rotate, multi-functional control such as micro-stepping driving of two feed mechanisms, the non-linkage work-table control of three-dimensional, online detection.When main axle moving speed≤25m/min, its reciprocating reversing precision can reach≤± 0.05mm; At honing nose cone core tapering is 1: 10 o'clock, and its minimum amount of feeding is 0.1 μ mm.Tapering is 1: 50 o'clock, and its minimum amount of feeding is 0.02 μ m.
Claims (5)
1. precise high-speed digital-controlled system of honing machine, comprise ARM microprocessor (1), memory (2A, 2B), D/A change-over circuit (3A, 3B), pulse generating circuit (4A, 4B), orthogonal pulses counter (5A, 5B, 5C), multichannel A/D change-over circuit (6), LCD display (23), control panel (24), wherein
Described ARM microprocessor (1): the information processing and the data operation that carry out digital control system;
Described memory (2A, 2B): the data when storing the operation of the program of above-mentioned ARM microprocessor (1) and data and system;
LCD display (23): convert the digital information of described ARM microprocessor (1) output to human character and the figure that can discern and show;
Control panel (24): receive the information of operator's input, output to described ARM microprocessor (1);
It is characterized in that: the output at described D/A change-over circuit (3A, 3B) connects voltage (21), input at described orthogonal pulses counter (5A, 5B, 5C) connects difference/voltage conversion circuit (7) respectively, input at described multichannel A/D change-over circuit (6) connects amplifying circuit (22), at an input/output port connecting interface circuit (8) of described ARM microprocessor (1);
Described D/A change-over circuit (3A, 3B): convert data signal to analog voltage signal and output to voltage (21);
Described voltage (21) converts the voltage signal of D/A change-over circuit (3A, 3B) output to current signal, be input to electro-hydraulic proportional servo valve (13) and frequency converter (14), as the control signal of electro-hydraulic proportional servo valve (13) and the control signal of frequency converter (14);
Described pulse generating circuit (4A, 4B): produce pulse, output to stepper motor driver (11A, 11B) respectively, control step motor (12A, 12B) work;
Described difference/voltage conversion circuit (7): the differential signal of received code device (9A, 9B, 9C) output, and convert voltage signal to and output to orthogonal pulses counter (5A, 5B, 5C);
Described orthogonal pulses counter (5A, 5B, 5C): receive the voltage signal of difference/voltage conversion circuit (7) output, the voltage signal that difference/voltage conversion circuit (7) is exported converts position signalling to;
Described amplifying circuit (22): receive the analog signal of voltage sensor (10A), current sensor (10B), temperature sensor (10C), pressure sensor (10D), displacement transducer (10E) output, output to multichannel A/D change-over circuit (6) after the amplification;
Described multichannel A/D change-over circuit (6): the analog signal conversion of amplifying circuit (22) output is become data signal;
Described interface circuit (8): receive the switching signal of ARM microprocessor (1) output, output to relay (17) and three-dimensional workbench (19), simultaneously, interface circuit (8) receives the switching signal of lathe (18) output, outputs to ARM microprocessor (1);
Wherein, described memory (2A, 2B), D/A change-over circuit (3A, 3B), pulse generating circuit (4A, 4B), orthogonal pulses counter (5A, 5B, 5C), multichannel A/D change-over circuit (6) be arranged in the ARM microprocessor (1) or ARM microprocessor (1) outside.
2. precise high-speed digital-controlled system of honing machine according to claim 1 is characterized in that: described pulse generating circuit (4A, 4B) adopts the pwm pulse generator of pulse width modulation.
3. precise high-speed digital-controlled system of honing machine according to claim 2, it is characterized in that: described difference/voltage conversion circuit comprises integrated circuit U35, wherein, integrated circuit U35 adopts the MAX3097 chip, the A end of described integrated circuit U35, A end, B end, B end, Z end, Z end are connected respectively to the output of encoder (9A), and the OUTA end of described integrated circuit U35, OUTB end, OUTZ end are connected to the input of described orthogonal pulses counter (5A).
4. according to claim 1,2 or 3 described precise high-speed digital-controlled system of honing machine, it is characterized in that: described ARM microprocessor (1) adopts the STM32F10x family chip of Cortex-M3 kernel.
5. precise high-speed digital-controlled system of honing machine according to claim 4, it is characterized in that: described voltage (21) comprises photoelectrical coupler U38, triode Q18, Q19, resistance R 45～R50, operational amplifier U2D, U2C, wherein, one end of resistance R 50 is connected to an output of D/A change-over circuit, the other end of resistance R 50 is connected to the base stage of triode Q19, the grounded emitter of triode Q19, the colelctor electrode of triode Q19 connects the input of photoelectrical coupler U38, and the output output of photoelectrical coupler U38 is just being changeed control signal to frequency converter (14); One end of resistance R 47 is connected to an output of D/A change-over circuit, the other end of resistance R 47 is connected to the inverting input of operational amplifier U2D, the in-phase input end of operational amplifier U2D is by resistance R 49 ground connection, connect resistance R 46 between the inverting input of operational amplifier U2D and the output, the in-phase input end of the output concatenation operation amplifier U2C of operational amplifier U2D, the emitter stage of the inverting input of operational amplifier U2C and triode Q18 is connected power supply by resistance R 45 simultaneously, the output of operational amplifier U2C is by the base stage of resistance R 48 connection triode Q18, and the colelctor electrode output speed control signal of triode Q19 is to frequency converter (14).
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| CN107175581A (en) * | 2017-07-21 | 2017-09-19 | 上汽通用五菱汽车股份有限公司 | The honing method and grinding equipment of engine cylinder hole |
| CN109189004A (en) * | 2018-08-30 | 2019-01-11 | 淮安信息职业技术学院 | Machining center photoelectricity integrates closed-loop control system |
| CN110141816A (en) * | 2019-04-23 | 2019-08-20 | 上海中备实业公司 | A kind of intelligent fire fighting equipment and extinguishing method for fire fighting truck |
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2009
- 2009-04-07 CN CN2009101035401A patent/CN101530981B/en not_active Expired - Fee Related
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