CN101135899A - Precision numerically controlled machine on-line detecting system - Google Patents
Precision numerically controlled machine on-line detecting system Download PDFInfo
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- CN101135899A CN101135899A CNA200710009663XA CN200710009663A CN101135899A CN 101135899 A CN101135899 A CN 101135899A CN A200710009663X A CNA200710009663X A CN A200710009663XA CN 200710009663 A CN200710009663 A CN 200710009663A CN 101135899 A CN101135899 A CN 101135899A
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Abstract
The invention uses point-to-multipoint radio serial-port communication approach. It comprise: precise digital control machine tool, servo system, digital control system, sensor, multi-channel sensor interface circuit, single board, radio transmission module and industrial control computer. The input of the servo system is connected to the digital control system; the output of the servo system is connected to the motor of the precise digital control machine tool; the sensor is installed on the precise digital control machine tool and can be moved along with the precise digital control machine tool; the output of the sensor is connected to the input of the multi-path sensor interface circuit; the output of the multi-path sensor is connected to the single board; the single board uses the multi-path sensor interface circuit control sensor to collect data; the single board is connected to the radio transmission module; the radio transmission module is connected to the industrial control computer via the serial-port; the industrial control computer uses the radio transmission module to communicate with the single board.
Description
Technical field
The present invention relates to a kind of parameter detection device of processing work, especially relate to a kind of precision numerically controlled machine on-line detecting system that adopts the communication of point-to-multipoint wireless serial.
Background technology
Along with the continuous expansion that the continuous development and the numerically-controlled machine of Numeric Control Technology are used, how to improve the working (machining) efficiency and the quality of numerically-controlled machine, how to guarantee its machining precision, be numerically-controlled machine key issue in the use.
Detection technique being melted among the content of digital control processing is the main mode that addresses this problem.Real-time according to measuring can be divided into real-time measurement, on-line measurement and off-line measurement.With regard to state-of-the art, measure in real time as: laser detection, image are handled measurement etc. in real time, and also there is very big difficulty in widespread usage in actual production.Online detection is in real time cutter or processing work to be detected in the process of processing, and makes corresponding processing according to the result who detects.When processing technology designs, generally to observe operation principle of centrality and datum coincidence principle.The operation principle of centrality has embodied the particularly processing characteristic of machining center of numerically-controlled machine, and the datum coincidence principle is in concrete practice and be not easy to accomplish.Difficulty was accomplished on technological datum, measuring basis, some positions of workpiece initial point (programming initial point) coincidence in lathe coordinate system when at first, workpiece was located.Secondly, work in-process not only can cause temporal loss because of shutting down detection if adopt the off-line measurement mode, and continuation processing will will produce the second positioning error inevitably after unloading workpiece calibration.Concerning the machining high-precision workpiece, this is the one of the main reasons that influences workpiece quality.Therefore, on-line measurement be under the present technology a kind of reliable and effective method (referring to document: 1. a Kang Zhi, Liu Ling. the research of machining center online measuring technique, control with detect .2007, (6): 56～57; 2.J.J.L.Neve, A.W.A.Plasschaert.Application of manufacturing message specification for flexiblemanufacturing system control.Computers in Industry, 1996:(29): 159～168; 3.Wei-Lun Chengand Chia-Hsiang Meng.Intergrated Laser/CMM System for the Dimensional Inspection ofObjects Made of soft material.The International Joumey of Manufacturing Technology, 1995:(10): 36～45; 4.Heuijae pahk and Jonghoo Kim.Application of Microcomputer for Assessing theProbe Lobing Error and Geometric Errors of CMMs using Commercial Ring Gauges.TheInternational Journey of Advanced Manufacturing Technology, 1995:(10): 208～218).
Adopt the mode of on-line measurement, can make the operator in time find the problem that workpiece exists, and feed back to digital control system.According to sample survey, China is because of product quality problem at present, and as waste product, substandard products, reprocessed products etc., the economic loss that is caused is about 10%～15% of the output value, and line Measurement Technique is applied to digital control system, and its most direct economic benefit just is not only to have saved man-hour but also improved measuring accuracy.And owing to utilized the function of machine tool numerical control system, make digital control system can in time obtain detection system institute feedack again, thus the timely update the system sum of errors stochastic error of energy, to change the kinematic parameter of lathe, guarantee crudy better, promote the incorporate development of in-process measurement.Can predict, the application of line Measurement Technique in numerically-controlled machine have broad prospects future (referring to document: Zhang Xiaofeng. numerically-controlled machine online measuring technique, detection technique .2005, (12): 71).
Summary of the invention
The object of the present invention is to provide a kind of precision numerically controlled machine on-line detecting system that adopts the communication of point-to-multipoint wireless serial, so that improve ultraprecise numerically-controlled machine machining precision and production efficiency etc.
The present invention is provided with precise numerical control machine, servo-drive system, digital control system (CNC), sensor, multichannel sensor interface circuit, single-chip microcomputer, wireless data transmission module and industrial computer.
The servo-drive system input end is connected with digital control system, and the servo-drive system output terminal is connected with the motor of precise numerical control machine, and sensor is installed on the precise numerical control machine, can move with precise numerical control machine.The output terminal of sensor is connected with multichannel sensor interface circuit input end, multichannel sensor interface circuit output terminal connects single-chip microcomputer, single-chip microcomputer carries out data acquisition by multichannel sensor interface circuit control sensor, single-chip microcomputer is connected with wireless data transmission module, wireless data transmission module is connected with industrial computer by serial ports, and industrial computer carries out communication by wireless data transmission module and single-chip microcomputer.
In industrial computer, be provided with online detection and error compensation software, generate the online trace routine of lathe by online detection and error compensation software, industrial computer sends the online trace routine of lathe to digital control system by LAN (Local Area Network), digital control system is rotated by the servo-drive system drive motor, thereby carries out online detection.Online then detection and error compensation software are handled the data of sensor acquisition, thereby generated error compensation program, industrial computer sends the error compensation program to digital control system by LAN (Local Area Network), and digital control system is rotated by the servo-drive system drive motor, thereby compensates processing.Generate the online trace routine of lathe by online detection and error compensation software, industrial computer sends the online trace routine of precise numerical control machine to digital control system by LAN (Local Area Network).
Online detection and error compensation software are provided with system module, online trace routine generation module, communication module, data processing module, emulation module, online help module, error compensation module and testing result output module are set.
The metering system of sensor can be contact or contactless.
The present invention adopts the communication of point-to-multipoint wireless serial can realize a plurality of sensors (can be installed in one or more lathe) online detection simultaneously, can save cost, improves detection efficiency.In addition, adopt wireless mode, solved the past outer lead difficulty and the long problem that influences signal quality that goes between that cause owing to the lathe good airproof performance, guaranteed accuracy of detection.In addition, of the present invention simple in structure, cost is low, and installation, conveniently moving are provided with flexibly, is adapted at work under the various environment.
Description of drawings
Fig. 1 is the structure composition frame chart of the embodiment of the invention.
The point-to-multipoint wireless serial Principle of Communication figure that Fig. 2 adopts for the embodiment of the invention.
Fig. 3 is the online detection of the embodiment of the invention and the general structure block diagram of error compensation software.
Fig. 4 is the online detection and the error compensation software workflow figure of the embodiment of the invention.
Below provide the code name of each the main accessory in Fig. 1～4:
1 ultraprecise numerically-controlled machine, 2 servo-drive systems, 3 digital control systems (CNC), 4 sensors, 5 multichannel sensor interface circuits, 6 single-chip microcomputers, 7 wireless data transmission modules, 8 industrial computers;
Online detection of A and error compensation software, the B system is provided with module, the online trace routine generation module of C, D communication module, E data processing module, F emulation module, G online help module, H error compensation module, I testing result output module
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
The used ultraprecise numerically-controlled machine of the embodiment of the invention is a Switzerland MFP-125.65.65 grinding machine, digital control system (CNC) adopts SINUMERIK 840D digital control system, and wireless data transmission module adopts the STR-15 type high-power wireless digital transmission module of Shanghai Sang Bo electronics technology company limited.
Referring to Fig. 1～4, the present invention is provided with ultraprecise numerically-controlled machine 1, servo-drive system 2, digital control system (CNC) 3, sensor 4, multichannel sensor interface circuit 5, single-chip microcomputer 6, wireless data transmission module 7, industrial computer 8 and online detection and error compensation software A.
Servo-drive system 2 input ends are connected with digital control system 3, and servo-drive system 2 output terminals are connected with the motor of precise numerical control machine 1, and sensor 4 is installed on the precise numerical control machine 1, can move with precise numerical control machine 1.The output terminal of sensor 4 is connected with multichannel sensor interface circuit 5 input ends, multichannel sensor interface circuit 5 output terminals connect single-chip microcomputer 6, single-chip microcomputer 6 carries out data acquisition by multichannel sensor interface circuit 5 control sensors 4, single-chip microcomputer 6 is connected with wireless data transmission module 7, wireless data transmission module 7 is connected with industrial computer 8 by serial ports, and industrial computer 8 carries out communication by wireless data transmission module 7 and single-chip microcomputer 6.
In industrial computer 8, be provided with online detection and error compensation software A, generate the online trace routine of lathe by online detection and error compensation software A, industrial computer 8 sends the online trace routine of lathe to digital control system 3 by LAN (Local Area Network), digital control system 3 is rotated by servo-drive system 2 drive motor, thereby carries out online detection.Online then detection and error compensation software A handle the data that sensor 4 is gathered, thereby generated error compensation program, industrial computer 8 sends the error compensation program to digital control system 3 by LAN (Local Area Network), and digital control system 3 is rotated by servo-drive system 2 drive motor, thereby compensates processing.Generate the online trace routine of lathe by online detection and error compensation software A, industrial computer 8 sends the online trace routine of precise numerical control machine to digital control system 3 by LAN (Local Area Network).
Online detection and error compensation software A are provided with system module B, online trace routine generation module C, communication module D, data processing module E, emulation module F, online help module G, error compensation module H and testing result output module I are set.Each module functions is as follows:
1) system is provided with module B and is used to set the every systematic parameter of on-line detecting system, comprises the sample frequency of sensor, the setting of systematic error and the setting that scale changes ratio etc.
2) online trace routine generation module C is mainly used in and finishes the input that workpiece is treated measurement information, generates to detect master routine.
3) communication module D is used to finish and sends online trace routine of lathe and error compensation program to digital control system by LAN (Local Area Network), and finishes the reception to the sensor measurement data.
4) data processing module E is used to finish the measurement point coordinate is handled and various sizes and accuracy computation.By opening the measurement result data file, obtain the measurement point coordinate information, measurement data to be carried out scale change, pre-service such as systematic error compensation are carried out corresponding operation processing again and are finally obtained testing result.
5) emulation module F is used for by software online trace routine and error compensation being carried out emulation in first being processed or processing, simulates actual online detection overall process.
6) online help module G is used for document form software each several part operation being explained in detail, is user-friendly to.
7) to be mainly used in be that the actual detection result is compared with theoretical testing result to error compensation module H, thus the generated error compensation program.
8) testing result output module I is mainly used in the measurement result after the data processing is shown printing with certain form, forms examining report.
The workflow of online detection and error compensation software is: the system that at first enters is provided with the good sensed system parameter of module settings, generate online trace routine by online trace routine generation module, next moves communication module and sends program to digital control system by LAN (Local Area Network), digital control system begins to detect after receiving trace routine, open emulation module and carry out real-time simulation, the Single-chip Controlling sensor carries out data acquisition simultaneously, and send the data that collect to common control machine by wireless data transmission module, next the service data processing module reads measurement data and handles, if testing result meets the requirements, then enter testing result output module output testing result, if the undesirable error compensation module generated error compensation program that then enters of testing result compensates processing, meet the requirements up to testing result and export testing result again.
Claims (2)
1. a precision numerically controlled machine on-line detecting system is characterized in that being provided with precise numerical control machine, servo-drive system, digital control system, sensor, multichannel sensor interface circuit, single-chip microcomputer, wireless data transmission module and industrial computer; The servo-drive system input end is connected with digital control system, the servo-drive system output terminal is connected with the motor of precise numerical control machine, sensor is installed on the precise numerical control machine, can move with precise numerical control machine, the output terminal of sensor is connected with multichannel sensor interface circuit input end, multichannel sensor interface circuit output terminal connects single-chip microcomputer, single-chip microcomputer carries out data acquisition by multichannel sensor interface circuit control sensor, single-chip microcomputer is connected with wireless data transmission module, wireless data transmission module is connected with industrial computer by serial ports, and industrial computer carries out communication by wireless data transmission module and single-chip microcomputer.
2. a kind of precision numerically controlled machine on-line detecting system as claimed in claim 1, it is characterized in that being provided with in industrial computer online detection and error compensation software, online detection and error compensation software are provided with system module, online trace routine generation module, communication module, data processing module, emulation module, online help module, error compensation module and testing result output module are set.
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| CNA200710009663XA CN101135899A (en) | 2007-10-12 | 2007-10-12 | Precision numerically controlled machine on-line detecting system |
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| CNA200710009663XA CN101135899A (en) | 2007-10-12 | 2007-10-12 | Precision numerically controlled machine on-line detecting system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968344A (en) * | 2009-09-22 | 2011-02-09 | 大连海事大学 | On-line three-dimensional shape-surface detection system for numerical control machining centre |
| CN102179723A (en) * | 2011-03-08 | 2011-09-14 | 哈尔滨先锋机电技术开发有限公司 | Radiocommunication-based online measuring device of numerical control machine |
| CN102501136A (en) * | 2011-10-10 | 2012-06-20 | 华中科技大学 | On-machine detection measuring head and detection system for numerical control machine tool |
| CN108037732A (en) * | 2017-11-22 | 2018-05-15 | 宜昌金宝乐器制造有限公司 | A kind of numerically controlled processing equipment based on wireless measurement technology |
| CN111121683A (en) * | 2019-12-05 | 2020-05-08 | 山西裕鼎精密科技有限公司 | Data processing apparatus, method and computer storage medium |
| CN112462691A (en) * | 2020-11-25 | 2021-03-09 | 苏州谷夫道自动化科技有限公司 | OpenGL-based three-dimensional simulation method and system for multi-channel numerical control system |
-
2007
- 2007-10-12 CN CNA200710009663XA patent/CN101135899A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968344A (en) * | 2009-09-22 | 2011-02-09 | 大连海事大学 | On-line three-dimensional shape-surface detection system for numerical control machining centre |
| CN102179723A (en) * | 2011-03-08 | 2011-09-14 | 哈尔滨先锋机电技术开发有限公司 | Radiocommunication-based online measuring device of numerical control machine |
| CN102179723B (en) * | 2011-03-08 | 2015-04-01 | 哈尔滨先锋机电技术开发有限公司 | Radiocommunication-based online measuring device of numerical control machine |
| CN102501136A (en) * | 2011-10-10 | 2012-06-20 | 华中科技大学 | On-machine detection measuring head and detection system for numerical control machine tool |
| CN102501136B (en) * | 2011-10-10 | 2013-09-18 | 华中科技大学 | On-machine detection measuring head and detection system for numerical control machine tool |
| CN108037732A (en) * | 2017-11-22 | 2018-05-15 | 宜昌金宝乐器制造有限公司 | A kind of numerically controlled processing equipment based on wireless measurement technology |
| CN111121683A (en) * | 2019-12-05 | 2020-05-08 | 山西裕鼎精密科技有限公司 | Data processing apparatus, method and computer storage medium |
| CN112462691A (en) * | 2020-11-25 | 2021-03-09 | 苏州谷夫道自动化科技有限公司 | OpenGL-based three-dimensional simulation method and system for multi-channel numerical control system |
| CN112462691B (en) * | 2020-11-25 | 2022-07-01 | 苏州谷夫道自动化科技有限公司 | OpenGL-based three-dimensional simulation method and system for multi-channel numerical control system |
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