CN211180636U - Control circuit of motion control system of numerical control machine tool - Google Patents

Abstract

The utility model discloses a control circuit of a motion control system of a numerical control machine tool, which comprises a DSP digital signal processor module, an FPGA module, an expansion memory module, a communication circuit module for communicating with an upper computer and a power module; the FPGA module, the expansion memory module and the communication circuit module are all connected with the DSP module, the input end of the FPGA module is connected with a grating ruler used for detecting the position of a moving shaft of the numerical control machine tool, the output end of the DSP module is connected with the photoelectric isolation circuit module, the output end of the photoelectric isolation circuit module is connected with the D/A conversion circuit module, and the output end of the D/A conversion circuit module is connected with a servo controller used for controlling a servo motor driving the moving shaft of the numerical control machine tool. The utility model discloses circuit structure is simple, can effectively regard as the hardware carrier in the control of digit control machine tool motion control system, excellent in use effect, convenient to popularize and use.

Description

Control circuit of motion control system of numerical control machine tool

Technical Field

The utility model belongs to the technical field of the digit control machine tool, concretely relates to digit control machine tool motion control system control circuit.

Background

The motion control system mainly comprises a first type of motion controller which takes an 8-bit or 16-bit singlechip as a core and has poor processing capability, low operation precision, low cost and low control precision, a second type of motion controller which takes a special chip as a core, the motion controller has poor openness and is difficult to recombine systems according to changes required by clients, and the motion controller has a simpler structure and usually has no feedback device, mostly can only output pulse signals, generally adopts an open loop control mode, and has no strong expansion capability, so the motion controller can only be used in a single-shaft point position control occasion, can not meet requirements for equipment requiring multi-shaft coordinated motion and high-speed track interpolation control, a third type of Gate Array is a Field Programmable Gate Array (DSP) and Field Programmable Gate Array (FPGA)/CP L D, and can be used for realizing high-speed and accurate control of the motion controller by combining with the existing DSP and PC technologies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a digit control machine tool motion control system control circuit, its circuit structure is simple, reasonable in design, and it is convenient to realize, can effectively regard as the hardware carrier in the control of digit control machine tool motion control system, excellent in use effect, convenient to popularize and use.

In order to solve the technical problem, the utility model discloses a technical scheme is: a control circuit of a motion control system of a numerical control machine tool comprises a DSP (digital signal processor) module, an FPGA (field programmable gate array) module, an expansion memory module, a communication circuit module for communicating with an upper computer and a power supply module for supplying power to each power utilization module in the control circuit of the motion control system of the numerical control machine tool; the system comprises an FPGA module, an expansion memory module, a communication circuit module, a DSP digital signal processor module, a photoelectric isolation circuit module, a D/A conversion circuit module and a servo controller, wherein the FPGA module, the expansion memory module and the communication circuit module are all connected with the DSP digital signal processor module, the input end of the FPGA module is connected with a grating ruler used for detecting the position of a moving shaft of a numerical control machine tool, the output end of the DSP digital signal processor module is connected with the photoelectric isolation circuit module, the output end of the photoelectric isolation circuit module is connected with the D/A conversion circuit module, and the output end of the D/A conversion circuit module is connected.

The control circuit of the motion control system of the numerical control machine tool comprises a first resistor TMS320F28335 of a DSP chip, a non-polar capacitor C23, a non-polar capacitor C24, an inductor L3, an inductor L4, an inductor L5, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R8, a resistor R28335, a reset circuit, and a clock circuit, which are connected to the ground through the resistor R3214, the resistor R3, the resistor R28335, the resistor R283V 28811, the resistor R28335, the resistor R283V 28811, the resistor R28335, the resistor R283, the resistor R2826, the resistor R28335, the resistor R283, the resistor R2826, the resistor R283V 2826, the resistor R2826, the resistor R283, the resistor R2826, the resistor R3V 28811, the resistor R2826, the resistor R32, the resistor R3 is connected to the resistor R3, the resistor, the power supply module, the resistor R3 is connected to the resistor R3, the power supply module, the power module, the.

The FPGA module includes an FPGA chip A3P400, where the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th, 9 th, 10 th, 11 th, 12 th, 13 th, 14 th, 15 th and 16 th pins of the FPGA chip A3P400 correspond to the 114 th, 113 th, 112 th, 111 th, 110 th, 100 th, 99 th, 98 th, 97 th, 96 th, 95 th, 94 th, 91 th, 90 th, 89 th pins of the DSP chip TMS320F28335 in sequence, and the 24 th, 25 th, 26 th, 27 th, 28 th, 29 th, 30 th, 31 th pins of the FPGA chip A3P400 are connected to the first pin, the second pin, the third pin, the fourth pin, the sixth pin, the seventh pin, the sixth pin, the seventh pin, the sixth pin, the seventh pin, the, The 32 th pin, the 33 rd pin, the 34 th pin, the 35 th pin, the 36 th pin, the 37 th pin, the 38 th pin, the 39 th pin, the 40 th pin and the 41 th pin correspond to the 151 th pin, the 152 th pin, the 153 th pin, the 156 th pin, the 157 th pin, the 158 th pin, the 161 th pin, the 162 th pin, the 163 th pin, the 164 th pin, the 165 th pin, the 168 th pin, the 169 th pin, the 172 th pin, the 173 th pin, the 174 th pin, the 175 th pin and the 176 th pin of the DSP chip TMS320F28335 in sequence, and the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin, the 22 th pin and the 23 th pin of the FPGA chip A3P400 correspond to the 18 th pin, the 19 th pin, the 25 th pin, the 20 th pin, the 21 st pin and the 24 th pin of the DSP chip TMS320F28335 in sequence.

The extended memory module includes SRAM chip IS 61L V25616, pins 1, 2, 3, 4, 5, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 42, 43 and 44 of the SRAM chip IS 61L V25616 correspond to pins 151, 152, 153, 156, 157, 158, 161, 162, 163, 164, 165, 168, 169, 172, 173, 174, 175 and 176 of DSP chip TMS320F28335 in turn, pins 7, 8, 9, 10, 149, 26, 127, 173, 174, 175 and 176 of the SRAM chip IS 61L V25137, 28, 127, 35, 119, 26, 35, 26, 28, 35, 119, 26, 35, 119, 26, 35.

A control circuit for a numerically-controlled machine tool motion control system, communication circuit module includes ethernet chip W5500, ethernet interface HR91105, crystal oscillator Y, inductance 6, non-polar capacitance C, resistance R and resistance R of ethernet chip W5500's 1 st pin of pin W5500 and ethernet interface HR91105, and through resistance R and power module's 3.3V voltage output terminal through resistance R and power module, 2 nd pin of ethernet chip W0 and ethernet interface HR91105 and ethernet interface HR 1 st pin HR91105 are connected with the 1 st pin HR of ethernet interface HR 3 interface HR91105, and through the polarity of HR 3.3 th pin W5 and HR chip HR 1 st pin W5 th pin W, HR 3 rd pin W5 th chip and HR chip HR 5 th chip HR 1 st pin W, HR 1 st pin W5 th chip and HR 5 th chip HR 1 st pin are connected with ground, the chip and HR 1 st chip of HR 5 th chip W5 th chip, HR 1 st chip and HR 5 th chip and HR 3 th chip, HR 1 st chip, HR 3 st pin are connected through the HR 1 st pin of HR 1 st chip and HR 5 th chip of HR 1 st chip and HR 5 th chip and HR 1 st chip HR 3 st chip HR 5 and HR 5 th chip, HR 1 st chip and HR 1 st chip of HR 3 th chip, HR 3 th chip and HR 3 th chip, HR 1 st chip, HR 3 th chip of HR 1 st chip and HR 1 st chip of HR 5 th chip, HR 5 th chip and HR 1 st chip and HR 3 st chip, HR 5 th chip and HR 5 th chip of HR 5 th chip and HR 1 st chip HR 5 th chip HR 1 st chip and HR 5, HR 3 st chip, HR 3 th chip of HR 5 th chip, HR 5 th chip and HR 5 th chip of HR 5 th chip and HR 3 th chip of HR 5 th chip and HR 5 th chip, HR 3 th chip of HR 5 th chip, HR 5 th chip of HR 5 th chip and HR 5 th chip, HR 3 th chip HR 5 th chip, HR 0, HR 5 th chip HR 3 th chip and HR 3 th chip, HR 5 th chip and HR 5 th chip, HR 0, HR 5 th chip and HR 5 th chip, HR 5 th chip and HR 5 th chip are connected.

The control circuit of the motion control system of the numerical control machine tool comprises an optical coupler 6N137, a triode Q2 with the model of 2N3904, a resistor R89, a resistor R90 and a resistor R91, wherein one ends of a 2 nd pin, a 7 th pin, an 8 th pin and the resistor R90 of the optical coupler 6N137 are connected with a 5V voltage output end of a power module, the other ends of a 6 th pin of the optical coupler 6N137 and a resistor R90 are connected with one end of a resistor R91, the other end of the resistor R91 is connected with a 6 th pin of a DSP chip TMS320F28335, a collector of the triode Q2 is connected with a3 rd pin of the optical coupler 6N137 through a resistor R89, an emitter of the triode Q2 and a 5 th pin of the optical coupler 6N137 are grounded, and a base of the triode Q2 is a signal output end DVO1 of the optical isolation circuit module.

The D/a conversion circuit module comprises a digital-to-analog conversion chip DAC7725, a polar capacitor C31, a non-polar capacitor C32, a polar capacitor C33, a non-polar capacitor C34, a polar capacitor C35, a non-polar capacitor C36, a non-polar capacitor C67 and a non-polar capacitor C68, the 8 th pin of the digital-to-analog conversion chip DAC7725 is connected with the signal output end DVO1 of the optoelectronic isolation circuit module, the 1 st pin of the digital-to-analog conversion chip DAC7725 is connected with the +10V voltage output end of the power module and grounded through the non-polar capacitor C67, the 28 th pin of the digital-to-analog conversion chip DAC7725 is connected with the-10V voltage output end of the power module and grounded through the non-polar capacitor C68, the 5 th pin and the 20 th pin of the digital-to the ground, and the 24 th pin of the digital-to analog conversion chip DAC7725, the positive electrode of the polar capacitor C31 and one end of the non-polar capacitor C32 are connected with the voltage output end of the power module The negative electrode of the polar capacitor C31 and the other end of the non-polar capacitor C32 are both grounded, the 25 th pin of the digital-to-analog conversion chip DAC7725, the positive electrode of the polar capacitor C33 and one end of the non-polar capacitor C34 are both connected to the +12V voltage output end of the power module, the negative electrode of the polar capacitor C33 and the other end of the non-polar capacitor C34 are both grounded, the 4 th pin of the digital-to-analog conversion chip DAC7725, the negative electrode of the polar capacitor C35 and one end of the non-polar capacitor C36 are both connected to the-12V voltage output end of the power module, the positive electrode of the polar capacitor C35 and the other end of the non-polar capacitor C36 are both grounded, and the 3 rd pin of the digital-to-analog conversion chip DAC7725 is the signal output end VOUTA of the D.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses circuit structure is simple, reasonable in design, and it is convenient to realize.

2. The utility model discloses a DSP digital signal processor module adopts 32 floating point DSP chips TMS320F28335, has powerful digital signal processing ability and embedded control function, combines together FPGA module and DSP digital signal processor module, can make controller information processing ability strong, and the control orbit is accurate, and the commonality is good.

3. The utility model discloses a communication circuit module adopts the ethernet communication mode, realizes the high-speed data exchange of DSP digital signal processor module and host computer, constitutes master-slave mode PC + DSP control system, improves communication speed.

4. The utility model discloses can effectively regard as the hardware carrier in the control of digit control machine tool motion control system, excellent in use effect, convenient to popularize and use.

To sum up, the utility model discloses circuit structure is simple, reasonable in design, and it is convenient to realize, can effectively regard as the hardware carrier in the control of digit control machine tool motion control system, excellent in use effect, convenient to popularize and use.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic circuit block diagram of the present invention;

FIG. 2 is a schematic circuit diagram of the A part of the DSP module of the present invention;

FIG. 3 is a schematic circuit diagram of the DSP module B of the present invention;

FIG. 4 is a schematic circuit diagram of the DSP module C of the present invention;

FIG. 5 is a schematic circuit diagram of the D portion of the DSP module of the present invention;

FIG. 6 is a schematic circuit diagram of the DSP module E of the present invention;

FIG. 7 is a schematic circuit diagram of the reset circuit of the DSP digital signal processor module according to the present invention;

FIG. 8 is a schematic circuit diagram of the DSP module clock circuit of the present invention;

fig. 9 is a schematic circuit diagram of the FPGA module of the present invention;

FIG. 10 is a schematic circuit diagram of an extended memory module according to the present invention;

fig. 11 is a schematic circuit diagram of the communication circuit module of the present invention;

fig. 12 is a schematic circuit diagram of the optoelectronic isolation circuit of the present invention;

fig. 13 is a schematic circuit diagram of the D/a conversion circuit module of the present invention.

Description of reference numerals:

1-DSP digital signal processor module; 2-FPGA module; 3-expansion memory module;

4-a communication circuit module; 5, a power supply module; 6, grating ruler;

7-optoelectronic isolation circuit module; 8-D/A conversion circuit module; 9-servo controller.

Detailed Description

As shown in fig. 1, the utility model discloses a control circuit of a numerically-controlled machine tool motion control system, which comprises a DSP digital signal processor module 1, an FPGA module 2, an expansion memory module 3, a communication circuit module 4 for communicating with an upper computer, and a power module 5 for supplying power to each power module in the control circuit of the numerically-controlled machine tool motion control system; the FPGA module 2, the expansion memory module 3 and the communication circuit module 4 are all connected with the DSP digital signal processor module 1, the input end of the FPGA module 2 is connected with a grating ruler 6 for detecting the position of a moving shaft of the numerical control machine tool, the output end of the DSP digital signal processor module 1 is connected with a photoelectric isolation circuit module 7, the output end of the photoelectric isolation circuit module 7 is connected with a D/A conversion circuit module 8, and the output end of the D/A conversion circuit module 8 is connected with a servo controller 9 for controlling a servo motor for driving the moving shaft of the numerical control machine tool.

In specific implementation, the grating ruler 6 is an NCST01 incremental grating ruler.

In the embodiment, the DSP digital signal processor module 1 includes a DSP chip TMS320F28335, a non-polar capacitor C23, a non-polar capacitor C24, an inductor L3, an inductor L4, an inductor L5, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, and a resistor R12, which are all connected to a crystal oscillator circuit, a reset circuit, and a clock circuit, which are all connected to a DSP chip TMS320F28335 through the resistor R32, a resistor R3, a resistor R32, a resistor R3, a resistor R32, a resistor R3, a resistor R32, a resistor R3, a resistor R32, a resistor R3, a resistor R32, a resistor R3, a resistor.

In this embodiment, as shown in fig. 9, the FPGA module 2 includes an FPGA chip A3P400, where the 1 st pin, the 2 nd pin, the 3 rd pin, the 4 th pin, the 5 th pin, the 6 th pin, the 7 th pin, the 8 th pin, the 9 th pin, the 10 th pin, the 11 th pin, the 12 th pin, the 13 th pin, the 14 th pin, the 15 th pin, and the 16 th pin of the FPGA chip A3P400 correspond to and are connected to the 114 th pin, the 113 th pin, the 112 th pin, the 111 th pin, the 110 th pin, the 100 th pin, the 99 th pin, the 98 th pin, the 97 th pin, the 96 th pin, the 95 th pin, the 94 th pin, the 91 th pin, the 90 th pin, the 89 th pin, and the 88 th pin of the DSP chip TMS320F28335 in sequence, and the 24 th pin, the 25 th pin, the 26 th pin, the 27 th pin, the 28 th pin, the 29 th pin, the 30 th pin, the 31 th pin, the 32 th pin, and the 33, The 34 th pin, the 35 th pin, the 36 th pin, the 37 th pin, the 38 th pin, the 39 th pin, the 40 th pin and the 41 th pin correspond to a 151 th pin, a 152 th pin, a 153 th pin, a 156 th pin, a 157 th pin, a 158 th pin, a 161 th pin, a 162 th pin, a 163 th pin, a 164 th pin, a 165 th pin, a 168 th pin, a 169 th pin, a 172 th pin, a 173 th pin, a 174 th pin, a 175 th pin and a 176 th pin of a DSP chip TMS320F28335 in sequence, and the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin, the 22 nd pin and the 23 th pin of the FPGA chip A3P400 correspond to a 18 th pin, a 19 th pin, a 25 th pin, a 20 th pin, a 21 st pin and a 24 th pin of the DSP chip TMS320F28335 in sequence.

In specific implementation, the FPGA module 2 is configured to perform filtering, frequency quadrupling, phase discrimination, and counting on a position signal detected by the grating ruler 6.

In this embodiment, as shown in fig. 10, the extended memory module 3 includes an SRAM chip IS 61L V25616, a 1 st pin, a 2 nd pin, a3 rd pin, a 4 th pin, a 5 th pin, an 18 th pin, a 19 th pin, a 20 th pin, a 21 st pin, a 22 nd pin, a 23 rd pin, a 24 th pin, a 25 th pin, a 26 th pin, a 27 th pin, a 42 th pin, a 43 th pin and a 44 th pin of the SRAM chip IS 61L V25616, which correspond to a 151 th pin, a 152 th pin, a 153 th pin, a 156 th pin, a 157 th pin, a 158 th pin, a 161 th pin, a 162 th pin, a 163 th pin, a 164 th pin, a 165 th pin, a 168 th pin, a 169 th pin, a 172 th pin, a 173 th pin, a 174 th pin, a 175 th pin and a 176 th pin of the DSP chip TMS320F28335, a 23 th pin, a seventh pin, a sixth pin, a seventh pin, a pin 161 st pin, a pin 162 th pin, a.

In specific implementation, the expansion memory module 3 is used for large-capacity data caching.

In this embodiment, as shown in fig. 11, the communication circuit module 4 comprises an ethernet chip W5500, an ethernet interface HR91105, a crystal oscillator Y, an inductor 6, a non-polar capacitor C, a resistor R, a 1, a resistor R, a resistor, a.

In specific implementation, the communication circuit module 4 uses ethernet communication to realize high-speed data transmission between the DSP digital signal processor module 1 and an upper computer, the 30 th pin XI/C L KIN and the 31 st pin X0 of the ethernet chip W5500 are connected to a 25MHz external crystal oscillator, the 10 th pin EXRES1 of the ethernet chip W5500 and an analog ground are connected to a 12.4K Ω and 1% precision resistor, the 1 st pin TXN and the 2 nd pin TXP of the ethernet chip W5500 are differential signal transmission pins, and are respectively connected in parallel to an external resistor of 49.9 Ω and a 1% precision resistor (keeping signal stable) and are respectively connected to the TD + and TD-pin of the ethernet interface 91105A, and are connected to a resistor of 10 Ω and a pin TCT of the ethernet interface HR 9157, the 25 th pin and the 27 th pin of the ethernet chip W5500 are respectively a network connection indicator light and an active status indicator light, the W5500 th pin W pin of the ethernet chip W5500 and the slave pin W55032 and the slave computer input pin SPI, the slave computer input pin 32 and the slave computer input pin SPI.

In this embodiment, as shown in fig. 12, the optoelectronic isolation circuit module 7 includes an optical coupler 6N137, a triode Q2 with a model of 2N3904, a resistor R89, a resistor R90, and a resistor R91, one end of a 2 nd pin, a 7 th pin, an 8 th pin, and a resistor R90 of the optical coupler 6N137 are all connected to a 5V voltage output end of the power module 5, the other end of a 6 th pin of the optical coupler 6N137 and the other end of a resistor R90 are all connected to one end of a resistor R91, the other end of the resistor R91 is connected to a 6 th pin of the DSP chip TMS320F28335, a collector of the triode Q2 is connected to a3 rd pin of the optical coupler 6N137 through a resistor R89, an emitter of the triode Q2 and a 5 th pin of the optical coupler 6N137 are both grounded, and a base of the triode Q2 is a signal output end DVO1 of the optoelectronic isolation circuit module 7.

During specific implementation, the photoelectric isolation circuit module 7 is used for improving the signal-to-noise ratio and suppressing spike pulse and various noise interferences, a pin output signal of the DSP chip TMS320F28335 is connected with a 6 th pin of the optical coupler 6N137 through a resistor R91, and is connected with a 5V voltage output end of the power module 7 after being connected with a resistor R90 in parallel at the other end of the R91, so that signal input is stabilized, and a current limiting effect is achieved, a3 rd pin of the optical coupler 6N137 is connected with a resistor R89 and then is connected with a triode Q2 for output, the triode Q2 is used for improving driving current, and the resistor R89 is used for protecting.

In this embodiment, as shown in fig. 13, the D/a conversion circuit module 8 includes a digital-to-analog conversion chip DAC7725, a polar capacitor C31, a non-polar capacitor C32, a polar capacitor C33, a non-polar capacitor C34, a polar capacitor C35, a non-polar capacitor C36, a non-polar capacitor C67, and a non-polar capacitor C68, the 8 th pin of the digital-to-analog conversion chip DAC7725 is connected to the signal output DVO1 of the optoelectronic isolation circuit module 7, the 1 st pin of the digital-to-analog conversion chip DAC7725 is connected to the +10V voltage output terminal of the power module 5 and is grounded through the non-polar capacitor C67, the 28 th pin of the digital-to-analog conversion chip DAC7725 is connected to the-10V voltage output terminal of the power module 5 and is grounded through the non-polar capacitor C68, the 5 th pin and the 20 th pin of the digital-to DAC7725 and the positive terminal of the polar capacitor C31 and one terminal of the non-polar capacitor C32 are connected to the voltage output terminal of the power module 5V output terminal of the power, the negative electrode of the polar capacitor C31 and the other end of the non-polar capacitor C32 are both grounded, the 25 th pin of the digital-to-analog conversion chip DAC7725, the positive electrode of the polar capacitor C33 and one end of the non-polar capacitor C34 are both connected to the +12V voltage output end of the power module 5, the negative electrode of the polar capacitor C33 and the other end of the non-polar capacitor C34 are both grounded, the 4 th pin of the digital-to-analog conversion chip DAC7725, the negative electrode of the polar capacitor C35 and one end of the non-polar capacitor C36 are both connected to the-12V voltage output end of the power module 5, the positive electrode of the polar capacitor C35 and the other end of the non-polar capacitor C36 are both grounded, and the 3 rd pin of the digital-to-analog conversion chip DAC7725 is the signal output end VOUTA of the D.

In specific implementation, the D/a conversion circuit module 8 is configured to convert the digital signal output by the DSP digital signal processor module 1 into an analog voltage signal, and the polar capacitor C31, the nonpolar capacitor C32, the polar capacitor C33, the nonpolar capacitor C34, the polar capacitor C35, the nonpolar capacitor C36, the nonpolar capacitor C37, and the nonpolar capacitor C38 are all used for filtering; the servo controller 9 is connected with the signal output end VOUTA of the D/a conversion circuit module 8.

When the utility model is used, the instruction operation of the upper computer to the numerical control machine is transmitted to the DSP digital signal processor module 1 through the communication circuit module 4, the DSP digital signal processor module 1 obtains an output control quantity, carries out photoelectric isolation through the photoelectric isolation circuit module 7, and inputs the digital-analog conversion into the servo controller 9 through the D/A conversion circuit module 8; the grating ruler 6 detects position signals of moving parts of the numerical control machine tool in real time, the position signals are transmitted into the FPGA module 2, the position signals are processed by the FPGA module 2 and then transmitted into the DSP digital signal processor module 1, the DSP digital signal processor module 1 obtains new output control quantity, the new output control quantity is input into the servo controller 9 sequentially through the photoelectric isolation circuit module 7 and the D/A conversion circuit module 8, the servo controller 9 controls the servo motor, and accurate machining of a target workpiece by a cutter of the numerical control machine tool is achieved.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims (7)

1. The utility model provides a digit control machine tool motion control system control circuit which characterized in that: the device comprises a DSP (digital signal processor) module (1), an FPGA (field programmable gate array) module (2), an expansion memory module (3), a communication circuit module (4) for communicating with an upper computer and a power supply module (5) for supplying power to each power utilization module in a control circuit of a motion control system of the numerical control machine; FPGA module (2), expansion memory module (3) and communication circuit module (4) all meet with DSP digital signal processor module (1), the input termination of FPGA module (2) has grating chi (6) that are used for carrying out the detection to the motion axle position of digit control machine tool, the output termination of DSP digital signal processor module (1) has photoelectric isolation circuit module (7), the output termination of photoelectric isolation circuit module (7) has DA conversion circuit module (8), the output termination of DA conversion circuit module (8) has servo controller (9) that are used for carrying out control to the servo motor that drives the digit control machine tool motion axle.

2. The control circuit according to claim 1 is characterized in that the DSP digital signal processor module (1) includes a DSP chip TMS320F28335, a non-polar capacitor C23, a non-polar capacitor C24, an inductor L3, an inductor L4, an inductor L5, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a crystal oscillator circuit, a reset circuit and a clock circuit, which are connected to a TMS320F28335 of the DSP chip TMS320F28335 through a resistor R3226, a resistor R335, a resistor R3226, a resistor R28335, a resistor R335, a resistor R3252, a resistor R335, a resistor R3226, a resistor R335, a resistor R323V 283, a resistor R335, a resistor R32335, a resistor R3280, a resistor R335, a resistor R32, a resistor R320, a resistor R32, a resistor R320, a resistor R32, a resistor R240, a resistor R chip TMS3 chip TMS3 chip TMS3 chip TMS3 chip TMS chip, a chip TMS chip, a power module, a chip, a power module, a chip, a power module, a chip, a power module.

3. A motion control system control circuit for a numerically controlled machine tool as in claim 2, wherein: the FPGA module (2) comprises an FPGA chip A3P400, wherein a 1 st pin, a 2 nd pin, A3 rd pin, a 4 th pin, a 5 th pin, a 6 th pin, a 7 th pin, an 8 th pin, a 9 th pin, a 10 th pin, an 11 th pin, a 12 th pin, a 13 th pin, a 14 th pin, a 15 th pin and a 16 th pin of the FPGA chip A3P400 are sequentially connected with a 114 th pin, a 113 th pin, a 112 th pin, a 111 th pin, a 110 th pin, a 100 th pin, a 99 th pin, a 98 th pin, a 97 th pin, a 96 th pin, a 95 th pin, a 94 th pin, a 91 th pin, a 90 th pin, an 89 th pin and an 88 th pin of a DSP chip TMS320F28335 in a corresponding mode, and a 24 th pin, a 25 th pin, a 26 th pin, a 27 th pin, a 28 th pin, a 29 th pin, a 30 th pin, a 31 th pin, a 32 th pin, a 33 th pin, a 34 th pin, a 35 th pin and a 16 th pin of the, The 36 th pin, the 37 th pin, the 38 th pin, the 39 th pin, the 40 th pin and the 41 th pin correspond to a 151 th pin, a 152 th pin, a 153 th pin, an 156 th pin, a 157 th pin, a 158 th pin, a 161 th pin, a 162 th pin, a 163 th pin, a 164 th pin, a 165 th pin, a 168 th pin, a 169 th pin, a 172 th pin, a 173 th pin, a 174 th pin, a 175 th pin and a 176 th pin of a DSP chip TMS320F28335 in sequence and are connected with the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin, the 22 nd pin and the 23 th pin of the FPGA chip A3P400 correspond to an 18 th pin, a 19 th pin, a 25 th pin, a 20 th pin, a 21 st pin and a 24 th pin of the DSP chip TMS320F28335 in sequence and are connected with the pins.

4. The control circuit of a motion control system of a numerical control machine according to claim 2, wherein the extended memory module (3) includes an SRAM chip IS 61L V25616, and pins 1, 2, 3, 4, 5, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 42, 43, 44 of the SRAM chip IS 61L V25616 correspond to pins 151, 152, 153, 156, 157, 158, 161, 162, 163, 164, 165, 168, 169, 172, 173, 175 and 176 of a DSP chip TMS320F28335 in turn, and pins 7, 8, 149, 26, 127, 129, 28, 26, 28, 26, 28, 127, 175, and 176 of the SRAM chip 61L V25616 are connected to pins 23, 35, 32, 35, 32, 35.

5. A control circuit according to claim 2, wherein said communication circuit module (4) comprises an ethernet chip W5500, an ethernet interface HR91105, a crystal oscillator Y, an inductor 6, a non-polar capacitor C, a non-polar capacitor R, a resistor R, and a resistor R, a first pin 1 of the ethernet interface W91105 is connected to a second pin 2 of the ethernet interface HR91105, and is connected to a 3.3V voltage output terminal of the power supply module (5) through a first resistor 5503W 3C, a first pin W7, a second pin W915, a non-polar resistor R, a second pin W915, a resistor R, a resistor.

6. A motion control system control circuit for a numerically controlled machine tool as in claim 2, wherein: the photoelectric isolation circuit module (7) comprises an optical coupler 6N137, a triode Q2 with the model number of 2N3904, a resistor R89, a resistor R90 and a resistor R91, one ends of a 2 nd pin, a 7 th pin, an 8 th pin and the resistor R90 of the optical coupler 6N137 are connected with a 5V voltage output end of a power module (5), the other ends of a 6 th pin of the optical coupler 6N137 and a resistor R90 are connected with one end of a resistor R91, the other end of the resistor R91 is connected with a 6 th pin of a DSP chip TMS320F28335, a collector electrode of the triode Q2 is connected with a3 rd pin of the optical coupler 6N137 through a resistor R89, an emitter electrode of the triode Q2 and a 5 th pin of the optical coupler 6N137 are grounded, and a base electrode of the triode Q2 is a signal output end DVO1 of the photoelectric isolation circuit module (7).

7. The control circuit of a motion control system of a numerical control machine tool according to claim 6, wherein: the D/A conversion circuit module (8) comprises a digital-to-analog conversion chip DAC7725, a polar capacitor C31, a non-polar capacitor C32, a polar capacitor C33, a non-polar capacitor C34, a polar capacitor C35, a non-polar capacitor C36, a non-polar capacitor C67 and a non-polar capacitor C68, the 8 th pin of the digital-to-analog conversion chip DAC7725 is connected with a signal output end DVO1 of the photoelectric isolation circuit module (7), the 1 st pin of the digital-to-analog conversion chip DAC7725 is connected with the +10V voltage output end of the power supply module (5) and is grounded through a non-polar capacitor C67, the 28 th pin of the digital-to-analog conversion chip DAC7725 is connected with the-10V voltage output end of the power supply module (5) and is grounded through a non-polar capacitor C68, the 5 th pin and the 20 th pin of the digital-to DAC7725 are both grounded, the 24 th pin of the digital-to DAC7725, the positive pole of the polar capacitor C31 and one end of the non-polar capacitor C32 are connected with the voltage output, the negative electrode of the polar capacitor C31 and the other end of the non-polar capacitor C32 are both grounded, the 25 th pin of the digital-to-analog conversion chip DAC7725, the positive electrode of the polar capacitor C33 and one end of the non-polar capacitor C34 are both connected with the +12V voltage output end of the power module (5), the negative electrode of the polar capacitor C33 and the other end of the non-polar capacitor C34 are both grounded, the 4 th pin of the digital-to-analog conversion chip DAC7725, the negative electrode of the polar capacitor C35 and one end of the non-polar capacitor C36 are both connected with the-12V voltage output end of the power module (5), the positive electrode of the polar capacitor C35 and the other end of the non-polar capacitor C36 are both grounded, and the 3 rd pin of the digital-to-analog conversion chip DAC7725 is the signal output end VOUTA of the D/A conversion.

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