CN103400531A - Teaching system for machine tool troubleshooting - Google Patents
Teaching system for machine tool troubleshooting Download PDFInfo
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- CN103400531A CN103400531A CN2013102776830A CN201310277683A CN103400531A CN 103400531 A CN103400531 A CN 103400531A CN 2013102776830 A CN2013102776830 A CN 2013102776830A CN 201310277683 A CN201310277683 A CN 201310277683A CN 103400531 A CN103400531 A CN 103400531A
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Abstract
The invention relates to a teaching system for machine tool troubleshooting, which comprises a trouble setting board, a troubleshooting board, a PLC (programmable logic controller) and a plurality of specific relays, wherein the trouble setting board, the troubleshooting board and the plurality of specific relays are electrically connected with the PLC, and the plurality of specific relays are connected to a plurality of specific trouble presetting points in a machine tool circuit respectively. According to the teaching system for machine tool troubleshooting, the plurality of specific relays are connected to the specific trouble presetting points in the machine tool circuit respectively; when the specific trouble presetting point is cut off, a circuit of the specific trouble presetting point is disconnected, and setting of a trouble point is completed; and when the specific trouble presetting point is connected, the circuit of the specific trouble presetting point is connected, and troubleshooting of the trouble point is completed. A teacher can randomly select and set the trouble point through the trouble setting board, and students carry out troubleshooting through the troubleshooting board, the operation amount in troubleshooting teaching is small, the teaching efficiency is high, and troubleshooting materials are not required. Wires are not contacted directly in the whole troubleshooting process, thereby being high in security, and having small damages for equipment.
Description
Technical field
The present invention relates to the malfunction elimination teaching field, particularly relate to a kind of machine failure investigation tutoring system.
Background technology
Lathe refers to the machine of manufacturing machine, also claims machine-tool or machine tool, is called for short traditionally lathe.Generally be divided into Metal Cutting Machine Tool, forging machine tool and joiner's bench etc.In modern mechanical manufacturing, the method for processing equipment part is a lot: except cut, also have casting, forging, welding, punching press, extruding etc., in every case belong to the part that accuracy requirement is higher and the surfaceness requirement is thinner, generally all need on lathe, with the method for cutting, finally process.Lathe plays significant role in the construction of national economic modernization.For the adjustment that adapts to industrial structure and the optimal combination requirement to the operation maintenance post technician of electric control system, the installation of all kinds of machine tool control systems, debugging, moving, be maintained as one of main learning content of university student for Automation Specialty and On Electro-mechanics Integration Major, is also the important topic of maintenance electrician's vocational training.
Lathe is widely used in production reality; in the work operational process of reality; maintainer's groundwork is that lathe is debugged and safeguarded; guarantee that lathe normally moves; this requires the maintainer according to the practical operation situation of lathe, the various abnormalities that lathe occurs to be investigated, and workload is larger, and is also extremely important; therefore, the malfunction elimination of lathe is particularly important in the teaching of all kinds of lathes and training.The teaching of existing machine failure investigation is mainly to break or button cuts off the forms such as circuit, and during the investigation teaching, operational ton is larger, and efficiency of teaching is lower, and security is lower, and is larger to equipment damage, and the investigation consumption of materials is more.After investigation finished, maintainer's maintenance workload was larger, and maintenance difficulties is high.In addition, the student easily produces the inertial thinking of back of the body trouble spot in the operating process of study investigation, cause teaching efficiency undesirable.
Summary of the invention
Based on this, be necessary that teaching is mainly cut off the forms such as circuit with broken string or button for existing machine failure investigation, during the investigation teaching, operational ton is larger, and efficiency of teaching is lower, security is lower, larger to equipment damage, and the more problem of the consumption of associated materials, when a kind of investigation teaching was provided, operational ton was less, efficiency of teaching is higher, security is higher, and is less to equipment damage, and investigates tutoring system without the machine failure of investigation material.
A kind of machine failure investigation tutoring system, comprise fault setting plate, malfunction elimination plate, PLC and a plurality of particular relay, described fault is set plate, the malfunction elimination plate is electrically connected to respectively described PLC with described a plurality of particular relay, described a plurality of particular relay is connected to a plurality of specific fault preset of machine tool circuitry
described fault is set plate and is comprised that specific fault arranges module, described specific fault arranges module to be had a plurality of specific fault and button is set and prestores with described a plurality of specific fault button a plurality of specific fault signalizations one to one are set, described a plurality of specific fault signalization is corresponding one by one with described a plurality of particular relay, when described specific fault arranges button and is triggered, described specific fault arranges module and will the specific fault signalization that button is corresponding be set with the specific fault that is triggered and be delivered to described PLC, described PLC controls the particular relay corresponding with the specific fault signalization that receives and cuts off the specific fault preset that connects,
described malfunction elimination plate comprises specific fault investigation module, described specific fault investigation module has a plurality of specific fault investigation buttons and prestores with described a plurality of specific fault investigates buttons a plurality of specific fault investigation signals one to one, described a plurality of specific fault investigation signal is corresponding one by one with described a plurality of particular relay, when described specific fault investigation button is triggered, described specific fault investigation module is delivered to described PLC by the specific fault investigation signal corresponding with the specific fault investigation button that is triggered, described PLC controls the specific fault preset that the particular relay conducting corresponding with the specific fault investigation signal that receives connects.
In embodiment, also comprise a plurality of additional relays therein, described a plurality of additional relays are connected in machine tool circuitry a plurality of additional fault preset that is different from described a plurality of specific fault preset,
described fault is set plate and is also comprised that random fault arranges module, described random fault arranges module to be had random button and prestores and described a plurality of additional relays a plurality of additional fault signalizations one to one, when described random button is triggered, one in the described fault setting described a plurality of specific fault signalizations of plate random call or described a plurality of additional fault signalization is delivered to described PLC, described PLC controls the particular relay corresponding with reception specific fault signalization or additional fault signalization or additional relay cuts off specific fault preset or the additional fault preset that connects,
described malfunction elimination plate also comprises additional fault investigation module, described additional fault investigation module has a plurality of additional fault investigation buttons and prestores with described a plurality of additional fault investigates buttons a plurality of additional fault investigation signals one to one, described a plurality of additional fault investigation signal is corresponding one by one with described a plurality of additional relays, when described additional fault investigation button is triggered, described additional fault investigation module is delivered to described PLC by the additional fault investigation signal corresponding with the additional fault investigation button that is triggered, described PLC controls the additional fault preset that the additional relay conducting corresponding with the additional fault investigation button that receives connects.
Therein in embodiment, also comprise the failure reset plate, described failure reset plate has the failure reset button and prestores the failure reset signal, when described failure reset button is triggered, described failure reset plate is delivered to described PLC by described failure reset signal, and described PLC is according to the described a plurality of particular relay of described failure reset signal controlling and described a plurality of additional relay difference conducting described a plurality of specific fault preset and described a plurality of additional fault preset.
therein in embodiment, described fault is set plate and is also comprised that the investigation number of times arranges module, described investigation number of times arranges a plurality of investigation number of times that module has for default investigation number of times button is set, and prestore and with described a plurality of investigation number of times, button is set and investigates one to one the number of times signalization, when described investigation number of times arranges button and is triggered, described investigation number of times arranges module and will the investigation number of times signalization that button is corresponding be set with described investigation number of times and be delivered to described PLC, described PLC stops responding operating again of described malfunction elimination plate when the investigation number of operations of described malfunction elimination plate reaches default investigation number of times.
In embodiment, described investigation number of times arranges module and also comprises display screen therein, and described display screen is for showing default investigation number of times.
In embodiment, described fault is set plate, malfunction elimination plate, PLC, failure reset plate, a plurality of particular relay and a plurality of additional relay and is integrated in a control desk therein.
In embodiment, described lathe is lathe, drilling machine, grinding machine or boring machine therein.
In embodiment, also comprise host computer therein, described host computer is connected with described PLC.
Above-mentioned machine failure investigation tutoring system, a plurality of particular relay are accessed respectively to the specific fault preset in machine tool circuitry, when the specific fault preset cuts off, the line interruption of this specific fault preset, trouble spot arranges and completes, during specific fault preset conducting, the line conduction of this specific fault preset, the trouble spot investigation completes.The teacher sets plate by fault can select arbitrarily to arrange trouble spot, by the student, by the malfunction elimination plate, is investigated, and during the investigation teaching, operational ton is less, and efficiency of teaching is higher, without the investigation material.The not directly contact wire of whole investigation process, security is higher, and is less to equipment damage.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the machine failure investigation tutoring system of an embodiment;
Fig. 2 is the schematic diagram of the machine failure investigation tutoring system of another embodiment;
Fig. 3 is the schematic diagram of the machine failure investigation tutoring system of another embodiment.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, in one embodiment, a kind of machine failure investigation tutoring system, comprise fault setting plate 110, malfunction elimination plate 120, PLC130(Programmable Logic Controller, programmable logic controller (PLC)) and a plurality of particular relay 140.Fault is set plate 110, malfunction elimination plate 120 is electrically connected to respectively PLC130 with a plurality of particular relay 140, and a plurality of particular relay 140 are connected to a plurality of specific fault preset of machine tool circuitry.Usually, the coil of a plurality of particular relay 140 is electrically connected to PLC130, often open auxiliary contact or the normally closed auxiliary contact of particular relay are serially connected in and need to set in the machine tool circuitry of fault, namely are connected to the specific fault preset.In the present embodiment, lathe is lathe, drilling machine, grinding machine or boring machine etc.
Fault is set plate 110 and is comprised that specific fault arranges module 112.Specific fault arranges module 112 to be had a plurality of specific fault and button is set and prestores with a plurality of specific fault button a plurality of specific fault signalizations one to one are set.A plurality of specific fault signalizations are corresponding one by one with a plurality of particular relay.When specific fault arranges button and is triggered, specific fault arranges module 112 and will the specific fault signalization that button is corresponding be set with the specific fault that is triggered and be delivered to PLC130, and PLC130 controls the specific fault preset that the particular relay corresponding with the specific fault signalization that receives 140 cut-outs connect.
Above-mentioned machine failure investigation tutoring system, a plurality of particular relay 140 are accessed respectively to the specific fault preset in machine tool circuitry, when the specific fault preset cuts off, the line interruption of this specific fault preset, trouble spot arranges and completes, during specific fault preset conducting, the line conduction of this specific fault preset, the trouble spot investigation completes.The teacher sets plate 110 by fault can select arbitrarily to arrange trouble spot, by the student, by malfunction elimination plate 120, is investigated, and during the investigation teaching, operational ton is less, and efficiency of teaching is higher, without the investigation material.The not directly contact wire of whole investigation process, security is higher, and is less to equipment damage.
As shown in Figure 2, in specific embodiment, machine failure investigation tutoring system also comprises a plurality of additional relays 150.A plurality of additional relays 150 are connected in machine tool circuitry a plurality of additional fault preset that is different from a plurality of specific fault preset.Fault is set plate 110 and is also comprised that random fault arranges module 114.Random fault arranges module 114 to be had random button and prestores and a plurality of additional relays 150 a plurality of additional fault signalizations one to one.When random button is triggered, one in fault setting a plurality of specific fault signalizations of plate random call or a plurality of additional fault signalization is delivered to PLC130, and PLC130 controls the particular relay 140 corresponding with reception specific fault signalization or additional fault signalization or additional relay 150 cuts off specific fault preset or the additional fault preset that connects.In addition, malfunction elimination plate 120 also comprises additional fault investigation module 124.Additional fault investigation module 124 has a plurality of additional fault investigation buttons and prestores with a plurality of additional fault investigates buttons a plurality of additional fault investigation signals one to one.A plurality of additional fault investigation signals are corresponding one by one with a plurality of additional relays.When additional fault investigation button is triggered, additional fault investigation module 124 is delivered to PLC130 by the additional fault investigation signal corresponding with the additional fault investigation button that is triggered, and PLC130 controls the additional fault preset that additional relay 150 conductings corresponding with the additional fault investigation button that receives connect.The random setting of module 114 is set by random fault, can effectively reflects the practical operation situation of lathe in production scene, can avoid the student in the operating process of study investigation, to produce the inertial thinking of back of the body trouble spot, improved quality of instruction.
As Fig. 3, in specific embodiment, machine failure investigation tutoring system also comprises failure reset plate 160.Failure reset plate 160 has the failure reset button and prestores the failure reset signal.When the failure reset button is triggered, failure reset plate 160 is delivered to PLC130 by the failure reset signal, and PLC130 is according to a plurality of particular relay 140 of failure reset signal controlling and a plurality of additional relays 150 difference conducting a plurality of specific fault preset and a plurality of additional fault presets.Fault is set plate 110 and is also comprised that the investigation number of times arranges module 116.The investigation number of times arranges a plurality of investigation number of times that module 116 has for default investigation number of times button is set, and prestores and with a plurality of investigation number of times, button is set and investigates one to one the number of times signalization.When the investigation number of times arranges button and is triggered, the investigation number of times arranges module 116 and will the investigation number of times signalization that button is corresponding will be set be delivered to PLC130 with the investigation number of times, and PLC130 stops responding operating again of malfunction elimination plate when the investigation number of operations of malfunction elimination plate reaches default investigation number of times.Usually, the investigation number of times arranges module 116 and also comprises display screen, and display screen is for showing default investigation number of times.In the present embodiment, fault setting plate 110, malfunction elimination plate 120, PLC130, failure reset plate 160, a plurality of particular relay 140 are integrated in a control desk with a plurality of additional relays 150.
The exploitation of above-mentioned machine failure investigation tutoring system can take into account the equipment course of work to technician's requirement and the lifting of teaching efficiency, in the Design and implementation process, consider the randomness of fault generation and the singularity of some most common failure, can install and apply to existing common lathe teaching, have certain ubiquity and practicality.In addition, machine failure investigation tutoring system also comprises host computer, host computer is connected with PLC130, can realize having Real Time Monitoring, the automatic detection of computer installation fault, troubleshooting scenario, teaching test and appraisal and show the multimedia computer training examination system of the several functions such as record.
Above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a machine failure is investigated tutoring system, it is characterized in that, comprise fault setting plate, malfunction elimination plate, PLC and a plurality of particular relay, described fault is set plate, the malfunction elimination plate is electrically connected to respectively described PLC with described a plurality of particular relay, described a plurality of particular relay is connected to a plurality of specific fault preset of machine tool circuitry
described fault is set plate and is comprised that specific fault arranges module, described specific fault arranges module to be had a plurality of specific fault and button is set and prestores with described a plurality of specific fault button a plurality of specific fault signalizations one to one are set, described a plurality of specific fault signalization is corresponding one by one with described a plurality of particular relay, when described specific fault arranges button and is triggered, described specific fault arranges module and will the specific fault signalization that button is corresponding be set with the specific fault that is triggered and be delivered to described PLC, described PLC controls the particular relay corresponding with the specific fault signalization that receives and cuts off the specific fault preset that connects,
described malfunction elimination plate comprises specific fault investigation module, described specific fault investigation module has a plurality of specific fault investigation buttons and prestores with described a plurality of specific fault investigates buttons a plurality of specific fault investigation signals one to one, described a plurality of specific fault investigation signal is corresponding one by one with described a plurality of particular relay, when described specific fault investigation button is triggered, described specific fault investigation module is delivered to described PLC by the specific fault investigation signal corresponding with the specific fault investigation button that is triggered, described PLC controls the specific fault preset that the particular relay conducting corresponding with the specific fault investigation signal that receives connects.
2. machine failure according to claim 1 is investigated tutoring system, it is characterized in that, also comprise a plurality of additional relays, described a plurality of additional relays are connected in machine tool circuitry a plurality of additional fault preset that is different from described a plurality of specific fault preset
described fault is set plate and is also comprised that random fault arranges module, described random fault arranges module to be had random button and prestores and described a plurality of additional relays a plurality of additional fault signalizations one to one, when described random button is triggered, one in the described fault setting described a plurality of specific fault signalizations of plate random call or described a plurality of additional fault signalization is delivered to described PLC, described PLC controls the particular relay corresponding with reception specific fault signalization or additional fault signalization or additional relay cuts off specific fault preset or the additional fault preset that connects,
described malfunction elimination plate also comprises additional fault investigation module, described additional fault investigation module has a plurality of additional fault investigation buttons and prestores with described a plurality of additional fault investigates buttons a plurality of additional fault investigation signals one to one, described a plurality of additional fault investigation signal is corresponding one by one with described a plurality of additional relays, when described additional fault investigation button is triggered, described additional fault investigation module is delivered to described PLC by the additional fault investigation signal corresponding with the additional fault investigation button that is triggered, described PLC controls the additional fault preset that the additional relay conducting corresponding with the additional fault investigation button that receives connects.
3. machine failure according to claim 1 and 2 is investigated tutoring system, it is characterized in that, also comprise the failure reset plate, described failure reset plate has the failure reset button and prestores the failure reset signal, when described failure reset button is triggered, described failure reset plate is delivered to described PLC by described failure reset signal, and described PLC is according to the described a plurality of particular relay of described failure reset signal controlling and described a plurality of additional relay difference conducting described a plurality of specific fault preset and described a plurality of additional fault preset.
4. machine failure according to claim 3 is investigated tutoring system, it is characterized in that, described fault is set plate and is also comprised that the investigation number of times arranges module, described investigation number of times arranges a plurality of investigation number of times that module has for default investigation number of times button is set, and prestore and with described a plurality of investigation number of times, button is set and investigates one to one the number of times signalization, when described investigation number of times arranges button and is triggered, described investigation number of times arranges module and will the investigation number of times signalization that button is corresponding be set with described investigation number of times and be delivered to described PLC, described PLC stops responding operating again of described malfunction elimination plate when the investigation number of operations of described malfunction elimination plate reaches default investigation number of times.
5. machine failure investigation tutoring system according to claim 4, is characterized in that, described investigation number of times arranges module and also comprises display screen, and described display screen is for showing default investigation number of times.
6. machine failure investigation tutoring system according to claim 3, is characterized in that, described fault is set plate, malfunction elimination plate, PLC, failure reset plate, a plurality of particular relay and a plurality of additional relay and is integrated in a control desk.
7. machine failure investigation tutoring system according to claim 1, is characterized in that, described lathe is lathe, drilling machine, grinding machine or boring machine.
8. machine failure investigation tutoring system according to claim 1, is characterized in that, also comprise host computer, described host computer is connected with described PLC.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318835A (en) * | 2014-10-29 | 2015-01-28 | 中国一冶集团有限公司 | Programmable full-circuit dynamic electrical failure simulation device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623312A (en) * | 1984-10-31 | 1986-11-18 | Training Labs, Inc. | Changeable modular training system to provide instruction for installing, servicing, troubleshooting and operating electromechanical control systems |
| US20050170322A1 (en) * | 2004-02-04 | 2005-08-04 | Midden Daniel P. | Development of a cost effective, on-site personnel trainer for boiler operations |
| KR100802437B1 (en) * | 2006-12-21 | 2008-02-13 | 주식회사 케이티이엔지 | Refrigeration electronic training kit using programmable logic controller |
| JP2008044074A (en) * | 2006-08-17 | 2008-02-28 | Ntn Corp | Grinding monitor device |
| CN101763743A (en) * | 2009-07-01 | 2010-06-30 | 林广兴 | Intelligent practicing device for an electrical towage control circuit |
| CN201562392U (en) * | 2009-11-19 | 2010-08-25 | 蒋海忠 | Checking device for machine tool electric skill training |
| CN102509498A (en) * | 2011-11-14 | 2012-06-20 | 上海理工大学 | Circuit fault setting encryption method for training and examination |
| CN202601063U (en) * | 2012-04-26 | 2012-12-12 | 上海工程技术大学 | Teaching device for T68 boring machine |
| CN203325329U (en) * | 2013-07-03 | 2013-12-04 | 上海工程技术大学 | Machine-tool fault setting and detecting device used for teaching |
-
2013
- 2013-07-03 CN CN201310277683.0A patent/CN103400531B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623312A (en) * | 1984-10-31 | 1986-11-18 | Training Labs, Inc. | Changeable modular training system to provide instruction for installing, servicing, troubleshooting and operating electromechanical control systems |
| US20050170322A1 (en) * | 2004-02-04 | 2005-08-04 | Midden Daniel P. | Development of a cost effective, on-site personnel trainer for boiler operations |
| JP2008044074A (en) * | 2006-08-17 | 2008-02-28 | Ntn Corp | Grinding monitor device |
| KR100802437B1 (en) * | 2006-12-21 | 2008-02-13 | 주식회사 케이티이엔지 | Refrigeration electronic training kit using programmable logic controller |
| CN101763743A (en) * | 2009-07-01 | 2010-06-30 | 林广兴 | Intelligent practicing device for an electrical towage control circuit |
| CN201562392U (en) * | 2009-11-19 | 2010-08-25 | 蒋海忠 | Checking device for machine tool electric skill training |
| CN102509498A (en) * | 2011-11-14 | 2012-06-20 | 上海理工大学 | Circuit fault setting encryption method for training and examination |
| CN202601063U (en) * | 2012-04-26 | 2012-12-12 | 上海工程技术大学 | Teaching device for T68 boring machine |
| CN203325329U (en) * | 2013-07-03 | 2013-12-04 | 上海工程技术大学 | Machine-tool fault setting and detecting device used for teaching |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318835A (en) * | 2014-10-29 | 2015-01-28 | 中国一冶集团有限公司 | Programmable full-circuit dynamic electrical failure simulation device and method |
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