CN102179723B - Radiocommunication-based online measuring device of numerical control machine - Google Patents
Radiocommunication-based online measuring device of numerical control machine Download PDFInfo
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- CN102179723B CN102179723B CN201110054756.0A CN201110054756A CN102179723B CN 102179723 B CN102179723 B CN 102179723B CN 201110054756 A CN201110054756 A CN 201110054756A CN 102179723 B CN102179723 B CN 102179723B
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Abstract
The invention relates to a radiocommunication-based online measuring device of a numerical control machine. Because a workpiece measuring system is provided with a cable, a measuring head needs to be manually assembled and disassembled from a mainshaft of the machine during measurement at every time due to the existence of the cable, therefore troubles are brought. The radiocommunication-based online measuring device comprises a signal generating device connected through a radio communication mode and a signal receiving device, wherein the signal generating device is provided with a measuring switch (4) connected to a measuring probe (18). The measuring switch is connected to a CPU 1 (5). The CPU 1 is connected to a radio transceiving module 1 (6). The radio transceiving module 1 is connected to an antenna 1 (7). The CPU 1 is connected to a rotary sensor (8). The rotary sensor includes Y-(21), X+(22), Y+(23), X-(24) acceleration switches. The signal receiving device includes a CPU 2 (10) installed on a receiver box (2) and a dial-up switch (11), a signal transition module (12) and a radio frequency (RF) transceiving module 2 (13). The radiocommunication-based online measuring device disclosed by the invention is used for online measurement of the numerical control machine.
Description
technical field:
the present invention relates to a kind of Digit Control Machine Tool on-line measurement device based on radio communication.
background technology:
for Digit Control Machine Tool, it is very important for measuring between the sequence of work pieces process, and whether the size of the every sequence processing of workpiece on the one hand reaches requirement, needs measurement to determine, at this moment just needs the task of completing measurement by measurer or workpiece calibration system.There is a kind of workpiece calibration system of tape cable can complete the measurement task of workpiece, measurement data can by the digital control system of cable transmission to lathe, digital control system is instructed to carry out following process, eliminate the trouble of the processing numerical value after calculating and manual Introduced Malaria, but due to the existence of cable, so each measurement all need manual on machine tool chief axis clamping and unload gauge head, for the Digit Control Machine Tool having automatic tool changer function, obviously limit the performance of its function to a certain extent, manual clamping gauge head also can take the process time of Digit Control Machine Tool preciousness.
in order to overcome above shortcoming, occurred afterwards using infrared light as the optical communication measuring system of communication media, this system efficiently solves the trouble that cable communication brings, human intervention is not needed in processing, when needing to measure, Digit Control Machine Tool can according to numerical control program Automatically invoked Infrared Measuring System, easy just as tool changing in processing, the signal that machine tool numerical control system can provide according to measuring system, the corresponding coordinate value of real-time reading, calculates the actual value of workpiece size with this value.Thisly eliminate manually-operated metering system, make process maintain good continuity.
but due to the rectilinear propagation properties of light, the position that light path is blocked just in time is positioned at for workpiece calibration point, will seems unable to do what one wishes, for this situation, just must change measurement scheme, even lose original metering system.So just need a kind of better measuring technique to make up above deficiency.
summary of the invention:
the object of this invention is to provide a kind of Digit Control Machine Tool on-line measurement device based on radio communication, it carries out data communication by radio wave, data transmission adopts a kind of mode of burst transfer to carry out, extremely short data transmission period, avoid contingent interference, effectively can reduce transmission delay simultaneously, improve the response speed of system.
above-mentioned object is realized by following technical scheme:
a kind of Digit Control Machine Tool on-line measurement device based on radio communication, its composition comprises: be arranged on the signal generation apparatus inside gauge head, described signal generation apparatus is by the mode connection signal receiving system of wireless telecommunications, and described signal receiving device is connected with machine tool numerical control system;
described signal generation apparatus comprises the measurement switch be connected with chaining pin, described measurement switch connects CPU mono-, described CPU mono-connects radio transceiver chip one, described radio transceiver chip one connects antenna one, described CPU mono-connects turn-sensitive device, described turn-sensitive device is fixedly mounted on inside described gauge head, and described turn-sensitive device is connected power supply respectively with described CPU mono-; Wherein, described turn-sensitive device is made up of centrosymmetric Y-21, X+ 22, Y+ 23, X-24 4 acceleration switch;
described signal receiving device comprises receiver box, installs CPU bis-inside described receiver box, and described CPU bis-connects toggle switch, signal conversion module and radio transceiver chip two respectively, and described radio transceiver chip two connects antenna two.
beneficial effect:
1. the present invention is for the consideration to gauge head flexibility, devises the scheme arranged the dormancy time of gauge head and On/Off mode at receiver end.Encoded by the corresponding positions of stirring toggle switch, the CPU that code signal is received in device reads, and when waiting for that next time opens gauge head, sends gauge head to.Gauge head arranges corresponding project according to the code signal come from receiver.The advantage of this setup is just the project these not being needed to often setting, and as easy as rolling off a log grasp hints on operation, can complete corresponding operation fast.
the pairing that the present invention is undertaken between gauge head and receiver by triggering chaining pin is arranged, when gauge head is in resting state, if there is the trigger action of chaining pin, gauge head detects the sequence of movement of agreement, the receiver in effective range is then found in the action meeting agreement, after finding, confirm to match with corresponding receiver by again triggering chaining pin.Gauge head after having matched and receiver could set up communication.The benefit done like this to allow many cover measuring system cooperation in short range.Meanwhile, the setting that triggering chaining pin carries out only has pairing one, so only need carry out just passable when arranging in order, and handled easily.
communication between gauge head of the present invention and receiver can be carried out in the free frequency range in the whole world, when gauge head is got in touch with receiver in the channel of specifying, receiver determines whether notify that gauge head starts by On/Off mode with from the enabling signal that machine tool numerical control system comes, if can start, receiver is after receiving gauge head request instruction, send open command at once, waiting for sending to gauge head if receiver has dormancy time or On/Off mode to arrange instruction, so first receiver sends and arranges instruction to gauge head, and then send open command, and then a synchronizing sequence can be sent, at this moment gauge head and receiver synchronous redirect between preference channel.
accompanying drawing illustrates:
accompanying drawing 1 is the structural representation of invention.
accompanying drawing 2 is position views of turn-sensitive device.
accompanying drawing 3 is gauge head circuit working principle sketches.
accompanying drawing 4 is receiver operation principle sketches.
accompanying drawing 5 is gauge head circuit theory diagrams.
accompanying drawing 6 is acceptor circuit schematic diagrams.
detailed description of the invention:
embodiment 1:
based on the Digit Control Machine Tool on-line measurement device of radio communication, its composition comprises: be arranged on the signal generation apparatus inside gauge head 1, described signal generation apparatus is by the mode connection signal receiving system of wireless telecommunications, described signal receiving device is connected with machine tool numerical control system 3, described signal generation apparatus comprises the measurement switch 4 be connected with chaining pin 18, described measurement switch connects CPU 1, described CPU mono-connects radio (RF) transceiver module 1, described radio (RF) transceiver module one connects antenna 1, described CPU mono-connects turn-sensitive device 8, described turn-sensitive device is fixedly mounted on inside described gauge head, described turn-sensitive device is connected power supply 9 respectively with described CPU mono-, wherein, described turn-sensitive device is made up of centrosymmetric Y-21, X+ 22, Y+ 23, X-24 4 acceleration switch,
the described Digit Control Machine Tool on-line measurement device based on radio communication, described signal receiving device comprises receiver box 2, inside described receiver box, CPU 2 10 is installed, described CPU bis-connects toggle switch 11, signal conversion module 12 and radio (RF) transceiver module 2 13 respectively, described radio (RF) transceiver module two connects antenna 2 14, and described receiver box connects universal connecting base 15.
embodiment 2:
as shown in Figure 1, gauge head to be installed on lathe 17 by connection handle 16, and chaining pin is arranged on gauge head, and receiver box is provided with on universal connecting base, and universal connecting base is fixed on lathe, and the signal of signal receiving device is transferred to machine tool numerical control system by stube cable.
when chaining pin contacts with surface of the work, chaining pin is caused to deflect, measurement switch thus by being connected with chaining pin in gauge head inside produces a measuring-signal, after CPU mono-detects this measuring-signal, at once corresponding code signal is sent to RF transceiver module one, and require that RF transceiver module one sends at once, after RF transceiver module receives code signal, by GFSK(GFSK Gaussian Frequency Shift Keying) mode is modulated in the free radio frequency in the whole world, is sent to signal receiving device by antenna one.
on signal receiving device, radio signal receives through antenna two, through RF transceiver module two demodulation process, be reduced into the code signal that CPU bis-can identify, notice CPU bis-prepares to receive data, CPU bis-extracts data, see whether be measuring-signal, if so, then with high priority, output signal is sent to signal conversion module, convert through signal conversion module the signal that machine tool numerical control system can identify to, output to lathe.
fig. 2 is turn-sensitive device schematic diagram, it is by centrosymmetric Y-21, X+ 22, Y+ 23, X-24 4 acceleration switch are formed, identical acceleration could be produced when limiting only have gauge head to rotate with such four acceleration switch, that is only having to rotate just has signal to produce, in order to ensure the reliable of signal, in this example, only having gauge head to rotate turn-sensitive device when reaching 300 revs/min just has rotating signal to send CPU mono-to, at this moment CPU mono-has a delay judgement, the namely uninterrupted duration of signal, filter the mistake that may exist further to rotate, in this example, this uninterrupted duration was 1 second, after signal continued for 1 second, CPU 31 judges that this signal is effective, if less than 1 second, just the interfering signal that this signal produces as misoperation is neglected, after signal determining is effective, CPU is for a moment according to residing state, make and performing an action accordingly.Such as, gauge head is in resting state and rotates Starting mode effectively, and effective rotating signal at this moment can trigger a startup event, and namely gauge head starts, and load operating program, enters duty, drives peripheral devices to enter duty by dormancy simultaneously.Accordingly, effective rotating signal detected time in working order, and rotary closing mode is effective, CPU mono-performs action in contrast with the above, closes peripheral components, and carry dormancy program, gauge head enters resting state.
misapplied for preventing same lasting effective rotating signal, such as, after useful signal is detected, this signal also continuing, if do not dealt with, just may be considered to repeatedly useful signal, used by gauge head by mistake, stablizing of influential system, the method for solution is when the rotating signal duration was more than 1 second, can temporarily ignore this signal after CPU mono-detects signal, no matter how its state does not process, until just again recover the detection to this signal after 4 seconds.So just stop having reserved enough stabilization time for rotating.
gauge head uses powered battery, gauge head needs to detect the electricity of battery, the voltage detecting function that CPU mono-is built-in is used in this example, CPU mono-reads the magnitude of voltage of battery, then the magnitude of voltage read and the low voltage value provided and superpressure value are compared, when magnitude of voltage exceedes the rated operational voltage 3.6 volts of circuit (the superpressure value arranged here is 3.7 volts), CPU mono-closes RF transceiver module one, continue to monitor the voltage of battery, and using indicator lamp flicker as warning, when battery electric quantity will exhaust, cell voltage can decline very fast, too low voltage can make circuit cisco unity malfunction, the situation even caused confusion, so need to arrange a magnitude of voltage (being 2.7 volts) here, when battery also reaches maintenance work a period of time, replacing battery is pointed out with yellow indicator lamp fast blink.
what need special process is, when the low voltage value of battery just lower than setting, because circuit load is not stablize constant, namely cell voltage has small fluctuation, namely when time low in energy consumption, during as dormancy, cell voltage can rise, in this case, the confusion that indicator lamp shows will certainly be caused, allowing people not make clear is low pressure, for these reasons, arranges here when cell voltage has recovered normal magnitude of voltage higher than just thinking during a magnitude of voltage.This processing mode is better than and simply judges low voltage value, such as, as long as there is low pressure, just continues display low pressure, and no longer detects magnitude of voltage, so just abnormal conditions are lost to the ability of judgement.
on Fig. 4, toggle switch in signal receiving device is used for arranging Starting mode and the dormancy time of gauge head, electricity and gauge head be not when starting on the receiver, CPU bis-detects the state of toggle switch, when toggle switch state changes, CPU bis-detects and judges the setting corresponding with toggle switch state, and when again opening gauge head, these arrange and can send gauge head to followed by gauge head start signal.
gauge head and signal receiving device will carry out data communication, first will match and could use, the gauge head of successful matching and signal receiving device, do not need to carry out matching operation again in communication afterwards, except non-replaceable one of them.
in this example, during pairing, touching chaining pin, chaining pin is made to depart from original resting position 5 second, at this moment CPU mono-detects the signal measuring switch, determine that the duration was 5 seconds, chaining pin is made to get back to resting position afterwards, this is as the commencing signal of pairing, CPU mono-prepares matching operation, then again touch chaining pin and make it deflection 5 second, then chaining pin is made to get back to resting position, this is as the confirmation signal of pairing, after CPU mono-detects this confirmation signal, search instruction is sent to RF transceiver module one, search signal receiving system, signal receiving device receives search instruction and can reply one and get out instruction, after CPU mono-receives this instruction, can continue to detect chaining pin state, at this moment, lay a finger on chaining pin, make it generation signal to CPU mono-, CPU mono-sends binding instruction afterwards, the CPU bis-of signal receiving device receives binding instruction, binding gauge head, complete bindings.
Claims (1)
1.
a kind of Digit Control Machine Tool on-line measurement device based on radio communication, its composition comprises: be arranged on the signal generation apparatus inside gauge head, it is characterized in that: described signal generation apparatus is by the mode connection signal receiving system of wireless telecommunications, and described signal receiving device is connected with machine tool numerical control system;
described signal generation apparatus comprises the measurement switch be connected with chaining pin, described measurement switch connects CPU mono-, described CPU mono-connects radio transceiver chip one, described radio transceiver chip one connects antenna one, described CPU mono-connects turn-sensitive device, described turn-sensitive device is fixedly mounted on inside described gauge head, and described turn-sensitive device is connected power supply respectively with described CPU mono-; Wherein, described turn-sensitive device by centrosymmetric Y-(21), X+ (22), Y+(23), X-(24) four acceleration switch are formed;
described signal receiving device comprises receiver box, installs CPU bis-inside described receiver box, and described CPU bis-connects toggle switch, signal conversion module and radio transceiver chip two respectively, and described radio transceiver chip two connects antenna two.
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| CN201110054756.0A CN102179723B (en) | 2011-03-08 | 2011-03-08 | Radiocommunication-based online measuring device of numerical control machine |
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| CN102179723B true CN102179723B (en) | 2015-04-01 |
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| CN102490086B (en) * | 2011-10-28 | 2013-11-27 | 浙江大学 | System for monitoring working state of boring rod in real time |
| CN104647133B (en) * | 2014-11-27 | 2017-04-12 | 浙江吉利罗佑发动机有限公司 | Box type part jig accuracy calibration device and accuracy calibration method |
| CN104504893A (en) * | 2015-01-04 | 2015-04-08 | 成都英力拓信息技术有限公司 | Monitoring-system-containing three-axis machine tool adopting Internet of tings technology |
| CN105081878A (en) * | 2015-07-25 | 2015-11-25 | 天津市懒人科技有限公司 | Wireless position probe |
| CN108188832A (en) * | 2018-03-06 | 2018-06-22 | 深圳市欧谱奇科技有限公司 | A kind of numerically-controlled machine tool on-machine measurement radio Adaptive matching device |
| CN108173554A (en) * | 2018-03-06 | 2018-06-15 | 深圳市欧谱奇科技有限公司 | A kind of numerically-controlled machine tool on-machine measurement radio signal receiving apparatus |
| CN113483623B (en) * | 2021-07-19 | 2024-01-02 | 西门子电机(中国)有限公司 | Engine base machining size detection system |
| CN113560956B (en) * | 2021-08-24 | 2024-07-09 | 哈尔滨先锋机电技术开发有限公司 | Novel wire communication machine tool measuring head |
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