CN101539768A - Control device of machine tool - Google Patents
Control device of machine tool Download PDFInfo
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- CN101539768A CN101539768A CN200910128578A CN200910128578A CN101539768A CN 101539768 A CN101539768 A CN 101539768A CN 200910128578 A CN200910128578 A CN 200910128578A CN 200910128578 A CN200910128578 A CN 200910128578A CN 101539768 A CN101539768 A CN 101539768A
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Abstract
The invention provides a control device of a machine tool, which controls electrifying to the machine tool. The control device keeps electrifying of a second relay in a scheduled time by a capacitor of a power source monitoring part arranged in the control device when voltage of a factory power source electrifying the machine tool is lost. After voltage of a factory power source electrifying the machine tool is lost for the scheduled time, the second relay is used to record electrifying history. When the machine tool is started again, a CPU reads data electrifying history equivalent to electrifying of the second relay and limits starting when having detected the history.
Description
Technical field
The present invention relates to a kind of control device to the lathe controlled towards the energising of lathe.
Background technology
In the past, the operator required to carry out precision machined lathe and need keep accuracy.For example, because of moving or reselling when having moved significantly, the person in charge of the technology aspect of lathe manufacturing company etc. need confirm for ensureing performance at lathe.As being used to detect moving or reselling etc. and notification alert operator's prior art of lathe, for example have Jap.P. to disclose 2003 No. 35595 technology that communique is put down in writing.
In the prior art, vibration detection mechanism is subjected to vibrating this situation to lathe and detects.Vibration resume storing mechanism will have or not detected vibration to be stored as the vibration resume.When vibration resume storing mechanism stored the vibration resume, the lathe notice stored this information of vibration resume.Start prohibition unit and forbid that lathe starts.
In above-mentioned prior art, only judge and move or the moving of lathe that causes such as resell established according to the vibration resume.Therefore, when having changed configuration in the factory or when earthquake takes place etc. not the vibration of moving or reselling etc. and to cause, also can be decided to be by erroneous judgement is that moving of lathe established.Consequently, the prior art existence can limit the problem that lathe starts mistakenly.
Summary of the invention
The object of the present invention is to provide a kind of can detect reliably lathe move or moving of causing such as resell established, and can start the control device of the lathe of restriction reliably.
The control device of the lathe of technical scheme 1 has: conduct substitutes power supply keeps energising with the stipulated time energising maintaining body when the main power voltage of lathe energising is lost, finish test section to finished the energising that this situation detects in the energising of the described energising maintaining body in described main power voltage forfeiture back, and the startup restrictions of the startup restriction of when described energising is finished energising that test section detects described energising maintaining body and finished this situation, the startup of described lathe being stipulated.
Adopt the control device of the lathe of technical scheme 1, former thereby when stopping because of certain in the energising from primary power towards lathe, the energising maintaining body replaces primary power to keep energising with the stipulated time.In case the energising of main power voltage stopped through the stipulated time, just can not utilize the energising maintaining body to keep energising, energising stops.Energising is finished test section this situation that can't keep switching on is detected.
Finish test section in energising and detect and to utilize the energising maintaining body when keeping switching on this situation, start the startup restriction that restrictions is carried out lathe.Therefore, not when the energising that comes automatic power supply stops, just starting restriction, be that condition starts restriction but continue the stipulated time with halted state.Lathe can be when produce having a power failure or changes the energising of the short time that configuration in the factory etc. causes and stop to get rid of from the reason that starts restriction, only starts restriction under the long energising halted state that move or resell etc. causes.
Wait and from the reason that starts restriction, get rid of by producing to have a power failure or change configuration, when detecting long energising halted state, start restrictions and be judged to be, startup is limited because of the moving or resell etc. and need the affirmation performance guarantee of lathe.Lathe is being carried out unsuitable move or when reselling, can prevent to descend because of under the situation of not confirming performance guarantee, starting breakage, the permanance that lathe produces equipment.
The control device of the lathe of technical scheme 2 also has the vibration detection mechanism of the vibration that detects described lathe, described startup restrictions is carried out described startup restriction according to the testing result of described vibration detection mechanism when described energising is finished energising that test section detects described energising maintaining body and finished this situation.
Adopt the control device of the lathe of technical scheme 2, when energising stops for a long time but do not detect vibration, be judged as power off time length etc., do not start restriction.Therefore, lathe can be avoided originally unnecessary startup restriction, thereby can further improve operator's convenience.
The control device of the lathe of technical scheme 3 also comprises: described vibration detection mechanism is detected the vibration resume storing mechanism that this situation of vibration of described lathe is stored; And in described energising finishes that energising that test section do not detect described energising maintaining body has been finished and described vibration resume storing mechanism has been removed described vibration resume storing mechanism canned data when having stored this situation of vibration that detects described lathe initialization section.
Adopt the control device of the lathe of technical scheme 3,, will have the resume of the vibration of lathe to remove though when detecting vibration and do not exist long energising to stop, not starting restriction.Because the vibration in will switch on is got rid of outside object, so lathe can be avoided carrying out unnecessary startup reliably when earthquake etc. takes place and limits.When producing vibration in energising, initialization section will be vibrated resume and remove.Therefore, lathe can only detect the vibration of switching on when stopping, and further avoids unnecessary startup restriction.
The control device of each lathe has voltage conversion mechanism in the technical scheme 4 to 6, and this voltage conversion mechanism converts described main power voltage and the identical voltage of the retainable energising voltage of described energising maintaining body to.
Adopt the control device of each lathe in the technical scheme 4 to 6, voltage conversion mechanism converts main power voltage to the value identical with the energising voltage of the maintaining body of switching on.Therefore, when main power voltage was switched on, lathe was switched on the voltage that is converted to voltage conversion mechanism, when main power voltage is lost, and can be to switch on from the energising voltage of energising maintaining body.
In the control device of each lathe, described energising maintaining body is the capacitor that is connected with the outgoing side of described voltage conversion mechanism in technical scheme 7 to 9.Capacitor stores the electric charge that described main power voltage is obtained after with the conversion of described voltage conversion mechanism.
Adopt the control device of each lathe in the technical scheme 7 to 9, use capacitor as the energising maintaining body.Therefore, when main power voltage was switched on, lathe can store in capacitor by the electric charge that changing voltage produces to switch on the voltage after the voltage conversion mechanism conversion.When main power voltage was lost, capacitor can be switched on the electric charge that stores the stipulated time towards lathe.
The control device of the lathe of technical scheme 10 also comprises relay, this relay has the switch that becomes closed condition and become open mode when the energising of described main power voltage or described energising voltage when described main power voltage and described energising voltage are not all switched on, and described energising is finished test section the described open mode of described switch is detected.
Adopt the control device of the lathe of technical scheme 10, when main power voltage was not all switched on energising voltage, switch became open mode from closed condition.Finish the open mode of test section detector switch according to energising, the energising that can detect main power voltage stops and also stopping this situation through the energising of energising voltage after the stipulated time.
In the control device of the lathe of technical scheme 11, described relay comprises that switch opens and closes and use coil, and this switch opens and closes with coil excitation when described main power voltage or described energising voltage are switched on, and driving described switch becomes closed condition.
Adopt the control device of the lathe of technical scheme 11, switching becomes closed condition with coil with switch drive according to switch, and lathe energy reliable recording stops this situation through the energising of energising voltage after the stipulated time.
The control device of the lathe of technical scheme 12 also comprises the storing mechanism of volatibility, the storage when described main power voltage or the energising of described energising voltage of the storing mechanism of this volatibility keeps provisioning information, the described provisioning information that forfeiture has been stored when described main power voltage and described energising voltage are not all switched on, the forfeiture state that test section detects the described provisioning information of described storing mechanism is finished in described energising.
Adopt the control device of the lathe of technical scheme 12, when main power voltage is not all switched on energising voltage, the provisioning information that storing mechanism forfeiture storage keeps.Energising is finished test section and storing mechanism has been lost this situation of provisioning information is detected.Therefore, the lathe energising that can detect main power voltage stops and also stopping this situation through the energising of energising voltage after the stipulated time.
The control device of the lathe of technical scheme 13 also comprises moving body, this moving body is positioned at primary importance when described main power voltage or the energising of described energising voltage, do not move towards the second place when described main power voltage and described energising voltage are all switched on, described energising is finished test section and described moving body is positioned at this situation of the described second place is detected.
Adopt the control device of the lathe of technical scheme 13, when main power voltage was not all switched on energising voltage, moving body moved towards the second place from primary importance.Energising is finished test section and moving body is positioned at this situation of the second place is detected.Therefore, the lathe energising that can detect main power voltage stops and also stopping this situation through the energising of energising voltage after the stipulated time.
The control device of the lathe of technical scheme 14 constitutes described moving body with electrode, and comprise that electrode moves and use coil, this electrode moves uses coil excitation when described main power voltage or the energising of described energising voltage, and the described moving body that will be positioned at the described second place drives towards described primary importance.
Adopt the control device of the lathe of technical scheme 14, move with coil according to electrode electrode is driven towards primary importance, can reliable recording stop this situation through the energising of energising voltage after the stipulated time.Lathe can drive towards primary importance by electrode, and the resume of before this history that the second place write down are resetted.
Description of drawings
Fig. 1 is the front view of lathe that comprises an embodiment of control device of the present invention.
Fig. 2 is the stereographic map of the machine body of expression lathe.
Fig. 3 is the block scheme of the electrical structure of expression control device.
Fig. 4 is the key diagram of the schematic configuration of expression power monitoring portion.
Fig. 5 is the process flow diagram of the control of expression control device.
Fig. 6 is the key diagram that expression is provided with the schematic configuration of the power monitoring portion in the variation of SRAM.
Fig. 7 is the key diagram that expression has utilized the schematic configuration of the power monitoring portion in the variation that moves of electrode.
Fig. 8 is expression with the switch on key diagram of major part of the power monitoring portion in the variation that resets of finishing detection of cylinder.
Fig. 9 is the block scheme of schematic configuration that expression has added the control device of vibration detection device.
Figure 10 is the process flow diagram of control of the control device of presentation graphs 9.
Embodiment
One embodiment of the present invention is described with reference to the accompanying drawings.
As depicted in figs. 1 and 2, lathe 1 comprises: base 2 made of iron, the protection baffle plate 4 that is arranged on the machine body 3 on the base 2 and covers machine body 3.Front at protection baffle plate 4 is provided with front openings (not shown).Be provided with the shutter door 5,6 of a pair of slidingtype at the front openings place.Be respectively arranged with the 5a of windowpane portion, the 6a of rectangle in the substantial middle of shutter door 5,6.Be provided with handle portion 5b in the right part of shutter door 5, be provided with handle portion 6b in the left part of shutter door 6.
As shown in Figure 2, machine body 3 comprises: post 16, spindle nose 7, main shaft 9, tool replacing apparatus 20, tool storage room 21 and operator's console 15.Post 16 is erect the rear that is arranged on base 2.Post 16 is provided with spindle nose 7, and this spindle nose 7 can carry out lifting along the front surface of post 16.Spindle nose 7 rotatably supports main shaft 9.Tool replacing apparatus 20 is arranged on the right side of spindle nose 7.Tool replacing apparatus 20 is automatically changed the instrument that is installed on the main shaft 9.Tool storage room 21 is arranged on the right side of tool replacing apparatus 20.Tool storage room 21 keeps a plurality of holding tools.Operator's console 15 is arranged on the base 2.
The back side of post 16 is provided with control box 17.Take in the control device 30 (with reference to Fig. 3) of lathe 1 in the inboard of control box 17.
Spindle nose 7 carries out lifting by Z axle motor towards the rotation driving of both forward and reverse directions.Main shaft 9 drives by the rotation that is arranged on the Spindle Motor on the spindle nose 7 and is rotated.
On base 2, the form setting of operator's console 15 moving along X-direction and Y direction.The travel mechanism of operator's console 15 comprises: along Y-axis feeding guide (not shown), brace table 12 and the X-axis feeding guide (not shown) of Y direction extension.The Y-axis feeding guide is fixed on the base 2.The Y-axis feeding guide is supported brace table 12, and it can be moved along Y direction.The X-axis feeding guide is arranged on the brace table 12.The X-axis feeding guide is supported operator's console 15, and it can be moved along X-direction.X-axis motor and Y-axis motor as servo motor drive operator's console 15 along X-direction and Y direction.
The instrument that 20 pairs of tool replacing apparatus are installed on the main shaft 9 is changed with the instrument that is positioned at the position of readiness (tool changing ready position) of tool storage room 21.Tool replacing apparatus 20 has the turning axle (not shown) that the driving of the motor of using by tool changing (not shown) is rotated.Be connected with the tool changing arm 20a of the instrument of controlling in the bottom of turning axle.Holding under the state of instrument, by the rotation of tool changing arm 20a, the instrument that is installed on the main shaft 9 is changed with the instrument that is positioned at the position of readiness of tool storage room 21 at tool changing arm 20a.
Below control device 30 is described.As shown in Figure 3, control device 30 comprises the microcomputer that is made of CPU31, ROM32 and RAM33.
On CPU31, be connected with ROM32, RAM33, display part 34, input part 35 and IO interface (I/O) 39 by bus 46.On CPU31, be connected with the lathe operating member 36 that is positioned at control device 30 outsides by bus 46.Lathe operating member 36 for example comprises (all not shown) each operating members such as motor that X-axis motor, Y-axis motor, Z axle motor, Spindle Motor, tool changing that the machine body 3 of lathe 1 is had are used.On CPU31, be connected with power monitoring portion 40 by IO interface 39.Power monitoring portion 40 connects factory's power supply (primary power) of assigned voltage (for example single-phase 200V of being) by live wire L1.
Below power monitoring portion 40 is described.As shown in Figure 4, power monitoring portion 40 comprises: first relay 41, second relay 42, second AC-dc converter 43 (voltage conversion mechanism) and capacitor 45 (energising maintaining body).
Second AC-dc converter 43 promptly converts main power voltage to voltage (being 3.3V in the present embodiment) and the identical direct current of capacitor 45 retainable energising voltages from the single-phase alternating current of the 200V of factory's power supply by direct current.The input side of second AC-dc converter 43 is connected with live wire L1.The outgoing side of second AC-dc converter 43 is connected by the end of diode 44 with the coil 42a (switch opens and closes and uses coil) of the control side that is arranged on second relay 42.Between an end of the control side of the outgoing side of diode 44 and second relay 42, be connected with an end of capacitor 45.The other end ground connection of capacitor 45.The capacity of capacitor 45 is the capacity (for example being 10F) that can supply with the electric charge of stipulated time described later.
Second relay 42 is the double-contact formula relays that come on-off switch 42b and switch 42c with coil 42a.The end of the switch 42b of second relay 42 is connected with the other end of the coil 42a of second relay 42.The other end ground connection of switch 42b.The end of switch 42c is with the lathe direct supply, promptly the outgoing side of first AC-dc converter 38 is connected.The other end of switch 42c is connected with CPU31 (with reference to Fig. 3) by the IO interface 39 (with reference to Fig. 3) of control device 30.
First relay 41 is the single contact formula relays that come on-off switch 41b with coil 41a.The end of the switch 41b of first relay 41 is connected with the other end of the coil 42a of second relay 42.The other end ground connection of switch 41b.The end of the coil 41a of first relay 41 is connected with CPU31 (with reference to Fig. 3) by the IO interface 39 (with reference to Fig. 3) of control device 30.The other end ground connection of coil 41a.
Action to first relay 41 and second relay 42 describes below.
(a) at ordinary times
As shown in Figure 4, when factory's power source voltage is not lost (at ordinary times), in case connect mechanical type isolating switch 37 (with reference to Fig. 3), start CPU31 (with reference to Fig. 3), CPU31 just can export to coil 41a with latch signal by IO interface 39.Consequently, coil 41a energising, under the effect of the excitation attractive force of coil 41a, the switch 41b of first relay 41 becomes closed condition.Switch 42b, the 42c of second relay 42 is based on from the energising of second AC-dc converter 43 and under the effect of the excitation attractive force of the coil 42a of excitation, become closed condition.
When factory's power source voltage was not lost, if mechanical type isolating switch 37 is disconnected, then first AC-dc converter 38 became non-power status.Consequently, from the latch signal disappearance of CPU31, coil 41a becomes non-excited state, and the switch 41b of first relay 41 becomes open mode.But,, therefore the electric current that coil 42a carries out excitation is continued to flow by switch 42b because factory's power source voltage is not lost.Therefore, switch 42b, the 42c of second relay 42 keep closing state.
When (b) factory's power source voltage is lost
Factory's power source voltage because of certain former thereby when forfeiture, disappear from the latch signal of CPU31, coil 41a becomes non-excited state.Therefore, the switch 41b of first relay 41 becomes open mode.Because factory's power source voltage forfeiture, therefore the energising of the switch 42c towards second relay 42 stops from first AC-dc converter 38.The energising of coil 42a from second AC-dc converter 43 towards second relay 42 also stops.Consequently, capacitor 45 replaces second AC-dc converter 43, works as substituting power supply.The electric charge that stores in capacitor 45 is mobile towards the coil 42a of second relay 42.Capacitor 45 is switched on the coil 42a of stipulated time (for example about 10 minutes) to second relay 42.Switch 42b, the 42c of second relay 42 keeps closed condition in the stipulated time from factory's power source voltage forfeiture the time under the effect of the excitation attractive force of the coil 42a that is switched on by capacitor 45.Though switch 42c keeps closed condition, because factory's power source voltage forfeiture, therefore the energising from first AC-dc converter 38 towards switch 42c stops.
Through the stipulated time, during the charge depletion of capacitor 45, the excitation attractive force of coil 42a is lost under the state that the energising (from the energising of second AC-dc converter 43) at factory's power supply stops.Therefore, open the switch 42b of second relay 42, the contact of 42c.The opening action of this contact is represented to finish as the energising of the capacitor 45 of energising maintaining body.As described later, when start CPU31 next time, this energising finished detect.When after factory's power source voltage forfeiture, when factory's power supply restored before the process stipulated time, second AC-dc converter 43 carried out towards the energising of coil 42a before the charge depletion of capacitor 45.Owing to do not interrupt towards the energising of coil 42a, therefore the contact of switch 42b, the 42c of second relay 42 can not opened.Therefore, energising is finished test section and can't be detected finishing of energising.
(c) during factory's power returns
Factory's power returns after finishing in capacitor 45 energisings, when mechanical type isolating switch 37 (with reference to Fig. 3) was connected, CPU31 started.CPU31 detects the state of the switch 42c of second relay 42 by IO interface 39 (with reference to Fig. 3), with the state storage of switch 42c in RAM33 (with reference to Fig. 3).When the contact of the switch 42c of second relay 42 was in open mode, CPU31 towards first relay, 41 output latch signals, carried out excitation to coil 41a by IO interface 39.Only when the keyboard 13 of operator on being arranged on operation board 10 imported passwords, CPU31 just can export this latch signal.Switch 41b becomes closed condition under by the effect of the attractive force of the coil 41a of excitation.By closing of switch 41b, the electric current that second AC-dc converter 43 produces flows towards second relay 42 and first relay 41, and coil 42a is carried out excitation.The contact of switch 42b, 42c becomes closed condition under by the effect of the attractive force of the coil 42a of excitation once more.By closing of switch 42c, the output of first AC-dc converter 38 arrives IO interface 39.
The control of control device 30 is described below with reference to Fig. 5.Control and treatment shown in Figure 5 is that mechanical type isolating switch 37, the connection factory at the supply voltage forfeiture back operator of factory control device 30 that closes in order to start lathe 1 begins during power supply.
In step S10, whether the storage data of the RAM33 of CPU31 read control device 30 are finished the energising of capacitor 45 and to be judged.The CPU31 of the processing of execution in step S10 constitutes each technical scheme " test section is finished in energising ".When the energising of capacitor 45 after factory's power source voltage forfeiture stipulated time stops,, should history being stored in the RAM33 as the dump resume as top.In this case, satisfy the judgement of step S10, shift towards following step S20.
When factory's power source voltage is not lost, though perhaps in the forfeiture of factory power source voltage in the galvanization of capacitor 45 during factory's power returns, not at RAM33 stored dump resume.In this case, do not satisfy the judgement of step S10, finishing control is handled.
In step S20, CPU31 forbids that towards lathe operating member 36 output control signals lathe 1 starts.CPU31 is presented at alert message in the display part 34 towards the display part 34 output control signals of the operation board 10 of lathe 1.The content of alert message is not import password just can't start lathe 1 etc.The operator can be from 13 pairs of lathes of keyboard, 1 input password after the demonstration of seeing display part 34.
In step S30, whether whether correct (consistent with the password that lathe 1 is set) is judged to the password of operator input.Till the password unanimity of input, do not satisfy the judgement of step S30, step S20 is returned in the processing of CPU31, carries out same processing repeatedly.When the password of input is consistent, satisfy the judgement of step S30, so the processing of CPU31 is shifted towards following step S40.The CPU31 of the processing of execution in step S20 and step S30 constitutes " the startup restrictions " put down in writing in each technical scheme.
In step S40,,, remove the startup of lathe 1 and forbid towards lathe operating member 36 output control signals based on consistent this situation of the password of input.Towards the display part 34 output control signals of operation board 10, the alert message of removing display part 34 shows.CPU31 is towards first relay, 41 output latch signals.CPU31 exports control signal towards RAM33, removes the dump resume that are stored in the RAM33, and finishing control is handled.
As mentioned above, in control device 30, when former thereby when stopping because of certain from the energising of factory's power supply, capacitor 45 replaces factory's power supplys, and the coil 42a that keeps at the appointed time second relay 42 switches on.Afterwards, through the stipulated time, when storing the charge depletion in capacitor 45, the energising of coil 42a stops under the state that the energising at factory's power supply stops.Therefore, switch 42c becomes open mode, to carrying out record from factory's power source voltage forfeiture through the history of stipulated time.When factory's power returns, when starting lathe 1 once more, because switch 42c is in open mode, so CPU31 is stored in it in RAM33 as the dump resume.CPU31 is presented at the message corresponding with the information in being stored in RAM33 in the display part 34, notifying operation person (with reference to step S20).
As top, control device 30 be not when the energising from factory's power supply stops just with this information notifying operation person, be condition but continue the stipulated time with halted state, the notifying operation person.Therefore, control device 30 can be when have a power failure producing and except the energising of changing the short time that the configuration etc. of lathe 1 causes in factory stops, and the long energising halted state that causes notifying operation person reliably such as only will move or resell.
In the present embodiment, especially when having for a long time the energising halted state, the alert message that password just can't normally start is not inputed in expression be presented in the display part 34, and forbid the startup of lathe 1.Lathe 1 is being carried out unsuitable move or when reselling, control device 30 can suppress or prevent the improper use that causes situation that equipment breakage or permanance descend or form because of theft etc. because of directly starting.
The present invention is not limited to above-mentioned embodiment, can carry out various distortion in the scope that does not break away from its purport and technological thought.The following describes such variation.
When (1) using SRAM
As shown in Figure 6, in this variation, in the 40A of power monitoring portion, be provided with SRAM50.SRAM50 (volatile storage mechanism) carries out record to the process history of the factory's stipulated time of power source voltage forfeiture back till the charge depletion of capacitor 45.SRAM50 is connected with CPU51.The power supply of SRAM50 is connected with the outgoing side of second AC-dc converter 43 by diode 44.Between diode 44 and SRAM50, be connected with the capacitor 45 of ground connection.
SRAM50 has data that energising the time do not remove storage but in case energising stops the character that just can clear data.In this variation, CPU51 writes certain particular value to SRAM50 in advance, with it as differentiating data.
When the energising from second AC-dc converter 43 towards SRAM50 stops because of factory's power source voltage forfeiture, the same with above-mentioned embodiment, begin to switch on from capacitor 45 with replacing.In case passed through the stipulated time till the charge depletion of capacitor 45, capacitor 45 is not just switched on to SRAM50.Consequently, the differentiation data that are stored in the SRAM50 disappear, and CPU31 can identify this situation of stipulated time of having passed through.
When starting lathe 1 once more after factory's power returns, CPU31 reads in the differentiation data of SRAM50.CPU51 is detecting (test section is finished in energising) when differentiating data and disappearing this situation, and being judged as is the long energising halted state of moving or reselling etc. and to cause of lathe 1.Because can ground the same notifying operation person or No starting, so can obtain identical effect with above-mentioned embodiment.
When (2) using electrode mobile
As shown in Figure 7, the 40B of power monitoring portion comprises electrode falling device 160.Electrode falling device 160 comprises: the maintenance that is housed in the electrode 60 (moving body) in the cylindrical shell 61 and is configured in cylindrical shell 61 tops is with the electromagnet 54 and the usefulness electromagnet 55 that resets.
Keep electrode 60 being remained on the top (primary importance) of cylindrical shell 61 with electromagnet 54.On keeping, be connected with the outgoing side of second AC-dc converter 43 by diode 44 with electromagnet 54.At diode 44 and be connected with the capacitor 45 of ground connection between keeping with electromagnet 54.Reset and to drop to the electrode 60 of cylindrical shell 61 bottoms (second place) towards the primary importance pull-up with electromagnet 55 (electrode moves and uses coil).
Keep having the electrode 60 that to be positioned at primary importance and remain on magnetic force on the primary importance, but do not have the magnetic force that the electrode 60 that will be positioned at the second place picks up from the second place towards primary importance with electromagnet 54.Reset and drive loop 56 with electromagnet and be connected with electromagnet 55 with resetting.Electrode sensor 64a is fixed on the side, upper end of cylindrical shell 61.Electrode sensor 64a is positioned at this situation of primary importance to electrode 60 and detects.Electrode sensor 64b is fixed on the side, lower end of cylindrical shell 61.Electrode sensor 64b is positioned at this situation of the second place to electrode 60 and detects.The outgoing side of electrode sensor 64a, 64b is connected with CPU31 by IO interface 39.
Applying when switching on electromagnet 54, keep cylindrical shell 61 interior electrodes 60 being remained on the primary importance with electromagnet 54 usefulness magnetic force from the voltage of second AC-dc converter 43 to keeping.When the forfeiture of factory power source voltage, stop from the energising of second AC-dc converter 43.When losing through the stipulated time from factory's power source voltage, capacitor 45 is towards keeping the energising with electromagnet 54 to stop.When keeping energising with electromagnet 54 to stop, electrode 60 falls in cylindrical shell 61 because of action of gravity, moves towards the second place from the primary importance of cylindrical shell 61.After electrode sensor 64a detects electrode 60 and is positioned at primary importance, detect electrode 60 according to electrode sensor 64b and be positioned at this situation of the second place, detect the history (test section is finished in energising) of having passed through this situation of afore mentioned rules time.Therefore, it is the long energising halted state of moving or reselling etc. and to cause because of lathe 1 that control device 30 can be judged as, can ground the same notifying operation person or No starting with above-mentioned embodiment, can obtain identical effect.
When starting lathe 1 once more after factory's power returns, CPU31 drives loop 56 input control signals towards resetting with electromagnet, carries out excitation to resetting with electromagnet 55.Therefore, control device 30 can utilize magnetic force that electrode 60 is picked up towards primary importance from the second place.After electrode 60 is moved, because electrode 60 has been got back to primary importance, so the process history of afore mentioned rules time is resetted.Afterwards, can electrode 60 be maintained on the primary importance by the maintenance of maintenance with electromagnet 54.
When (3) resetting with cylinder
In the variation of above-mentioned (2), resetting makes electrode 60 return recovery from the second place of cylindrical shell 61 bottoms towards the primary importance on top with electromagnet 55, but is not limited thereto.As shown in Figure 8, being provided with cylinder 62 in this variation replaces resetting with electromagnet 55.Cylinder 62 makes electrode 60 restore towards primary importance.Cylinder 62 is arranged on the below of cylindrical shell 61.The piston rod 62a that stretches out from cylinder 62 inserts in the cylindrical shell 61.Piston rod 62a is provided with back up pad 63 at its front end, and back up pad 63 is arranged on the bottom in the cylindrical shell 61.
In this variation, when passing through the stipulated time from the forfeiture of factory power source voltage, when the primary importance of cylindrical shell 61 fell, back up pad 63 was caught electrode 60 to electrode 60 on the second place of cylindrical shell 61 in cylindrical shell 61.Afterwards, by making the piston rod 62a elongation of cylinder 62, the electrode 60 on the back up pad 63 is moved towards the primary importance of cylindrical shell 61.
When (4) also using vibration detection
As shown in Figure 9, in this variation, control device 30A has added vibration detection device 70 (vibration detection mechanism) on control device 30 (with reference to Fig. 3).Power monitoring portion 40 is identical with structure shown in Figure 4.
Vibration detection device 70 has: detect the function of vibration and the testing result of vibration is stored the function that remains in the RAM33 as resume (with powering irrespectively).RAM33 is equivalent to vibrate the resume storing mechanism.
The control of this variation is described below with reference to Figure 10.Control and treatment shown in Figure 10 is that mechanical type isolating switch 37, the connection factory at the power source voltage forfeiture back operator of factory control device 30A that closes in order to start lathe 1 begins during power supply.
In step S110, to whether having the dump resume to judge.With the storage data of the RAM33 of the same ground of the step S10 read control device 30 of Fig. 5, to whether having the dump resume to judge.If the dump resume are arranged, then satisfy the judgement of step S110, shift towards following step S120.If there are not the dump resume, then do not satisfy the judgement of step S110, shift towards step S160.
In step S120, to whether having the vibration resume in the dump to judge.As top, can be according to the data of reading in and storing into from vibration detection device 70 in the RAM33, whether there being the vibration resume to judge.When the vibration resume are arranged, satisfy the judgement of step S120, should vibrate resume and be stored in the RAM33, shift towards following step S130.When not vibrating resume, do not satisfy the judgement of step S120, in step S180, remove the dump resume in the RAM33, finishing control is handled.
In step S130, the same with above-mentioned steps S20 (with reference to Fig. 5), towards lathe operating member 36 output control signals, forbid that lathe 1 starts, and, make in the display part 34 to show and top identical alert message towards the display part 34 output control signals of the operation board 10 of lathe 1.The operator is after the demonstration of seeing display part 34, from 13 pairs of lathes of keyboard, 1 input password.
Among the step S140 below, the same with above-mentioned steps S30 (with reference to Fig. 5), whether the password of operator's input is correctly judged.Till the password unanimity of input, do not satisfy step S140, return step S130 and carry out same processing repeatedly.When the password of input is consistent, satisfy the judgement of step S140, shift towards following step S150.The CPU31 that carries out the processing of above-mentioned steps S130 and step S140 constitutes the startup restrictions of putting down in writing in each technical scheme.
Among the step S150 below, the same with step S40 (with reference to Fig. 5), towards lathe operating member 36 output control signals, remove the startup of lathe 1 and forbid, and remove the alert message demonstration of display part 34.The dump resume and the vibration resume that are stored in the RAM33 are removed, and finishing control is handled.
In step S160, to whether having the vibration resume to judge.Under the situation at ordinary times that does not have the supply voltage forfeiture, CPU31 reads in the detection data termly from vibration detection device 70, and it is stored in the RAM33.In step S160, can judge whether the vibration resume are arranged in the detection data of RAM33.
When not vibrating resume in the detection data at RAM33, do not satisfy the judgement of step S160, finishing control is handled.When the vibration resume are arranged in the detection data at RAM33, satisfy the judgement of step S160, shift towards step S170.
In step S170, owing to there are not dump resume, therefore can infer is to move (short time) such as configuration changes of lathe 1 to establish vibration or the just earthquake that causes, thus the vibration resume and the initialization of removing RAM33, and finishing control is handled.
The CPU31 that carries out the processing of above-mentioned steps S110 constitutes the energising of putting down in writing in each technical scheme and finishes test section.The CPU31 of the processing of execution in step S130 and step S140 constitutes the startup restrictions.The CPU31 of the processing of execution in step S170 constitutes initialization section.Though constituted vibration resume storing mechanism with RAM33, also can in vibration detection device 70, storing mechanism be set.
In this variation, the vibration of 70 pairs of lathes 1 of vibration detection device detects, though when having the dump resume not detect vibration, promptly when existing long energising to stop, not starting restriction.Therefore, startup restriction in the time of can avoiding power off time longer etc., originally unnecessary can further improve operator's convenience.
Claims (14)
1. the control device of a lathe is characterized in that, has:
Energising maintaining body, this energising maintaining body keep energising as substituting power supply with the stipulated time when the main power voltage of lathe energising is lost;
Test section is finished in energising, and this energising is finished test section and detected having finished this situation in the energising of the described energising maintaining body in described main power voltage forfeiture back; And
Start restrictions, this startups restrictions is when described energising is finished energising that test section detects described energising maintaining body and finished this situation, and the startup that the startup of described lathe is stipulated limits.
2. the control device of lathe as claimed in claim 1, it is characterized in that, the vibration detection mechanism that also has the vibration that detects described lathe, described startup restrictions is carried out described startup restriction according to the testing result of described vibration detection mechanism when described energising is finished energising that test section detects described energising maintaining body and finished this situation.
3. the control device of lathe as claimed in claim 2 is characterized in that, also comprises:
Vibration resume storing mechanism, this vibration resume storing mechanism is stored this situation of vibration that described vibration detection mechanism detects described lathe; And
Initialization section, this initialization section finishes that energising that test section do not detect described energising maintaining body has been finished and described vibration resume storing mechanism when having stored this situation of vibration that detects described lathe in described energising, and described vibration resume storing mechanism canned data is removed.
4. the control device of lathe as claimed in claim 1 is characterized in that, has voltage conversion mechanism, and this voltage conversion mechanism converts described main power voltage and the identical voltage of the retainable energising voltage of described energising maintaining body to.
5. the control device of lathe as claimed in claim 2 is characterized in that, has voltage conversion mechanism, and this voltage conversion mechanism converts described main power voltage and the identical voltage of the retainable energising voltage of described energising maintaining body to.
6. the control device of lathe as claimed in claim 3 is characterized in that, has voltage conversion mechanism, and this voltage conversion mechanism converts described main power voltage and the identical voltage of the retainable energising voltage of described energising maintaining body to.
7. the control device of lathe as claimed in claim 4, it is characterized in that, described energising maintaining body is the capacitor that is connected with the outgoing side of described voltage conversion mechanism, and this capacitor stores the electric charge that described main power voltage is obtained after with the conversion of described voltage conversion mechanism.
8. the control device of lathe as claimed in claim 5, it is characterized in that, described energising maintaining body is the capacitor that is connected with the outgoing side of described voltage conversion mechanism, and this capacitor stores the electric charge that described main power voltage is obtained after with the conversion of described voltage conversion mechanism.
9. the control device of lathe as claimed in claim 6, it is characterized in that, described energising maintaining body is the capacitor that is connected with the outgoing side of described voltage conversion mechanism, and this capacitor stores the electric charge that described main power voltage is obtained after with the conversion of described voltage conversion mechanism.
10. as the control device of each described lathe in the claim 7 to 9, it is characterized in that, also comprise relay, this relay has the switch that becomes closed condition and become open mode when the energising of described main power voltage or described energising voltage when described main power voltage and described energising voltage are not all switched on
Described energising is finished test section the described open mode of described switch is detected.
11. the control device of lathe as claimed in claim 10 is characterized in that, described relay comprises switch switching coil, and this switch opens and closes uses coil excitation when described main power voltage or the energising of described energising voltage, and driving described switch becomes closed condition.
12. control device as each described lathe in the claim 4 to 9, it is characterized in that, the storing mechanism that also comprises volatibility, the storage when described main power voltage or the energising of described energising voltage of the storing mechanism of this volatibility keeps provisioning information, the described provisioning information that forfeiture has been stored when described main power voltage and described energising voltage are not all switched on
The forfeiture state that test section detects the described provisioning information of described storing mechanism is finished in described energising.
13. control device as each described lathe in the claim 4 to 9, it is characterized in that, also comprise moving body, this moving body is positioned at primary importance when described main power voltage or the energising of described energising voltage, when all switching on, described main power voltage and described energising voltage do not move towards the second place
Described energising is finished test section and described moving body is positioned at this situation of the described second place is detected.
14. the control device of lathe as claimed in claim 13 is characterized in that,
Constitute described moving body with electrode,
Comprising that electrode moves uses coil, and this electrode moves with coil excitation when described main power voltage or the energising of described energising voltage, and the described moving body that will be positioned at the described second place drives towards described primary importance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-071206 | 2008-03-19 | ||
| JP2008071206A JP2009230189A (en) | 2008-03-19 | 2008-03-19 | Power controller for machine tool |
| JP2008071206 | 2008-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101539768A true CN101539768A (en) | 2009-09-23 |
| CN101539768B CN101539768B (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101285784A Active CN101539768B (en) | 2008-03-19 | 2009-03-17 | Control device of machine tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009230189A (en) |
| CN (1) | CN101539768B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103140816A (en) * | 2010-10-01 | 2013-06-05 | 西铁城控股株式会社 | Power supply management device and machine tool having the power-supply management device |
| CN104252163A (en) * | 2013-06-28 | 2014-12-31 | 罗斯蒙特公司 | Logic capable power module |
| CN106774158A (en) * | 2016-12-30 | 2017-05-31 | 苏州群志机械设备有限公司 | A kind of control system and method for the scene protection that collided for Digit Control Machine Tool |
| CN106919139A (en) * | 2015-12-24 | 2017-07-04 | 兄弟工业株式会社 | Move restriction device, lathe, move restriction method |
| CN107450475A (en) * | 2016-05-30 | 2017-12-08 | 兄弟工业株式会社 | The control method of displacement detection system and displacement detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5903986B2 (en) * | 2012-03-29 | 2016-04-13 | ブラザー工業株式会社 | Machine Tools |
| JP7042939B1 (en) | 2021-02-19 | 2022-03-28 | Dmg森精機株式会社 | Machine tools, machine tool control methods, and machine tool control programs |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02241070A (en) * | 1989-03-15 | 1990-09-25 | Fanuc Ltd | Nc laser equipment |
| JP4077844B2 (en) * | 2006-02-14 | 2008-04-23 | ファナック株式会社 | Machine tool with braking device |
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2008
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103140816A (en) * | 2010-10-01 | 2013-06-05 | 西铁城控股株式会社 | Power supply management device and machine tool having the power-supply management device |
| US9645599B2 (en) | 2010-10-01 | 2017-05-09 | Citizen Watch Co., Ltd. | Power supply management device and machine tool having the power-supply management device |
| CN104252163A (en) * | 2013-06-28 | 2014-12-31 | 罗斯蒙特公司 | Logic capable power module |
| CN104252163B (en) * | 2013-06-28 | 2020-07-10 | 罗斯蒙特公司 | Power module with logic capability |
| CN106919139A (en) * | 2015-12-24 | 2017-07-04 | 兄弟工业株式会社 | Move restriction device, lathe, move restriction method |
| CN106919139B (en) * | 2015-12-24 | 2019-06-21 | 兄弟工业株式会社 | It moves restriction device, lathe, move restriction method |
| CN107450475A (en) * | 2016-05-30 | 2017-12-08 | 兄弟工业株式会社 | The control method of displacement detection system and displacement detection system |
| CN106774158A (en) * | 2016-12-30 | 2017-05-31 | 苏州群志机械设备有限公司 | A kind of control system and method for the scene protection that collided for Digit Control Machine Tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101539768B (en) | 2011-06-08 |
| JP2009230189A (en) | 2009-10-08 |
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