CN102133719B - Tool cleaning device - Google Patents
Tool cleaning device Download PDFInfo
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- CN102133719B CN102133719B CN201110027161.6A CN201110027161A CN102133719B CN 102133719 B CN102133719 B CN 102133719B CN 201110027161 A CN201110027161 A CN 201110027161A CN 102133719 B CN102133719 B CN 102133719B
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- Auxiliary Devices For Machine Tools (AREA)
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Abstract
The invention provides a tool cleaning device which comprises a storage groove equipped adjacent to a cleaning liquid nozzle. Pressurization and pressure release can be performed inside the storage groove. When pressurized, the cleaning liquid inside the storage groove reaches the cleaning liquid nozzle through a relatively short path. The cleaning liquid is sprayed out from the cleaning liquid nozzle in a forceful way. Thus tools and tool retainers can be cleaned reliably in a short time. When the tool cleaning device is in a pressure release state, an open and close valve is opened. The cleaning liquid flowing from the valve is stored in the storage groove.
Description
Technical field
The present invention relates to a kind of to being installed on the instrument of machine tool chief axis and the tool cleaning device that tool retainer cleans.
Background technology
Lathe is carried out multiple processing by automatic tool exchange.Lathe comprises holding tools portion and tool replacing apparatus.Holding tools portion is received multiple types of tools with the state that is held in tool retainer, the instrument of needs is sent to changing position.Tool replacing apparatus is being changed position receiving tool, and carries the instrument receiving, and is installed on the main shaft of lathe.Tool replacing apparatus is pulled down the instrument of finishing using from main shaft, and the instrument of pulling down is transported to and changes position, makes it turn back to holding tools portion.
Tool retainer comprises main shaft installation portion and instrument maintaining part.Instrument maintaining part keeps the instruments such as drill bit, screw tap.Main shaft installation portion is cone shape.Main shaft has tool mounting hole.Tool mounting hole is the taper shape corresponding with main shaft installation portion.Tool replacing apparatus passes through in the main shaft installation portion insertion tool installing hole of tool retainer, setting tool keeper on main shaft.Because main shaft installation portion is close in tool mounting hole, therefore main shaft can be become concentric with tool positioned.
Main shaft is positioned at the inside of Processing Room.Deposit in the inside of Processing Room the smear metal that work in-process produces.Smear metal is attached to sometimes and is installed on main shaft tool retainer before.The smear metal that is attached to tool retainer enters between main shaft installation portion and tool mounting hole.Instrument rotates under eccentric state because of the impact of smear metal, and machining accuracy declines.Because the amount of the smear metal of adhering to is when more, instrument cannot be installed on main shaft, and therefore operator need to stop processing, removes smear metal.
The lathe of recording in Japanese Laid-Open Patent Publication 2002 No. 273640 comprises tool cleaning device.Tool cleaning device cleans being installed on main shaft instrument and tool retainer before.Tool cleaning device comprises to the remover liquid nozzle of the leading section ejection cleaning fluid of main shaft.Remover liquid nozzle is connected with cleaning solution supplying source and compressed gas source.Cleaning solution supplying source comprises case and pump.Case is accommodated cleaning fluid.Pump is carried the cleaning fluid of case inside to remover liquid nozzle.
Cleaning fluid is also used as instrument and the cooling cooling fluid of machining object in processing.The main purpose of pump is to supply with cooling fluid.The discharge pressure of pump is 0.03MPa left and right, also insufficient as the pressure of remover liquid nozzle ejection cleaning fluid.Compressed gas source is carried air to remover liquid nozzle.The ejection of the auxiliary cleaning fluid of air.Cleaning fluid is ejection at high speed under the effect of air, and washes away smear metal with tool retainer collision.
The mixture of remover liquid nozzle ejection cleaning fluid and air.Therefore, less with the amount of the cleaning fluid of instrument and tool retainer collision.Because the cleaning liquid measure of collision is less, therefore tool cleaning device in the past needs the long period removing of smear metal.Comprise in the lathe of tool cleaning device in the past, have the required long problem of time of tool changing including instrument cleans.
By the air pressure of auxiliary cleaning fluid ejection is improved, the time that energy shortening instrument cleans.Air pressure is the pressure of the compressed gas source that can use.In order to shorten scavenging period, need the special air-source of high pressure.
Summary of the invention
The object of the present invention is to provide one stably to spray a large amount of cleaning fluids, can be at short notice the tool cleaning device of cleaning means and tool retainer reliably.
In the tool cleaning device of technical scheme 1, comprising: the case of accommodating cleaning fluid; Can spray the remover liquid nozzle of cleaning fluid; And this remover liquid nozzle is connected with described case, and the cleaning fluid path that the cleaning fluid of described case inside is supplied with to described remover liquid nozzle, utilize the cleaning fluid of described remover liquid nozzle ejection to clean the instrument and the tool retainer that are installed on machine tool chief axis, described tool cleaning device comprises: be disposed at described cleaning fluid path, and by the storagetank of the described cleaning fluid storage in this cleaning fluid path internal flow; Be disposed at the described cleaning fluid path between described storagetank and described remover liquid nozzle, and the supplying valve of this cleaning fluid path of energy opening/closing; The supplying valve control part of supplying valve described in opening/closing control; Described storagetank is connected with pressure source, and the pressurization road that can utilize the pressure of this pressure source to pressurize to described storagetank inside; Be disposed at the described cleaning fluid path between described storagetank and described case, and the open and close valve of this cleaning fluid path of energy opening/closing; The open and close valve control part of open and close valve described in opening/closing control; To whether being the judging part that tool changing instruction judges; And to the pressure of described storagetank inside whether than the little pressure judging part judging of the supply pressure of described cleaning fluid, in the time that described judging part is judged as YES tool changing instruction, described supplying valve control part is opened described supplying valve, described pressure judging part is judged as the supply pressure hour of cleaning fluid described in the pressure ratio of described storagetank inside, and described open and close valve control part is opened described open and close valve.
Remover liquid nozzle is by the cleaning fluid ejection of storagetank internal storage.Storagetank is positioned near remover liquid nozzle.The cleaning fluid of storagetank inside arrives remover liquid nozzle via the path than in the past short.The exert pressure storagetank inside of pressure source is used on pressurization road.In the time that judging part is judged as YES tool changing instruction, supplying valve control part is opened supplying valve, and the cleaning fluid of storagetank inside is sprayed forcefully from remover liquid nozzle.Tool cleaning device can be at short notice cleaning means and tool retainer reliably.In storagetank inside, in after low pressure, open and close valve control part is opened open and close valve.Storagetank can be stored the cleaning fluid flowing into via open and close valve reliably.The cleaning that tool cleaning device finishes next time is at short notice prepared.
The tool cleaning device of technical scheme 2 also comprises pressure release road and switching valve, this pressure release road is connected with described storagetank and described case, and the air pressure of described storagetank inside can be discharged to described case, between the vent position that described switching valve can be opened at the pressing position that described pressurization road is opened and by described pressure release road, change.
Switching valve, in the time of pressing position, is opened pressurization road, and in addition air pressure of storagetank inside.Switching valve, in the time of vent position, is opened pressure release road, and the air pressure of storagetank inside is discharged.Storagetank can pressurize and pressure release with the simple structure with a switching valve.Pressurize and occur when different with pressure release, can implement reliably to clean and clean and prepare.
The tool cleaning device of technical scheme 3 comprises switching valve control part, and this switching valve control part, under the state that described supplying valve and open and close valve are closed, is converted to described pressing position by described switching valve.
Under the state that supplying valve and open and close valve are closed, switching valve is converted to pressing position by switching valve control part.Therefore, the pressure energy of pressure source is pressurizeed to the storagetank inside of closed condition efficiently.
The tool cleaning device of technical scheme 4 comprises pressure sensor, and this pressure sensor detects the pressure of described storagetank inside, and described pressure judging part judges according to the detected pressures of described pressure sensor.
Under the little state of the supply pressure of the pressure ratio cleaning fluid of storagetank inside, open and close valve is opened.Cleaning fluid flows into storagetank inside from case via open and close valve.
In the tool cleaning device of technical scheme 5, continue the stipulated time on described pressure release road during in pressure release state, it is little that described pressure judging part is judged as described in the pressure ratio of described storagetank inside the supply pressure of cleaning fluid.
According to the open hour on pressure release road, pressure judging part judges that storagetank inside is in this situation of low pressure.Open and close valve is opened, and cleaning fluid flows into storagetank inside from case via open and close valve.
Brief description of the drawings
Fig. 1 is the stereogram that comprises the lathe of the tool cleaning device of embodiment 1.
Fig. 2 is the side view of the lathe of Fig. 1.
Fig. 3 is the front view of main shaft and main spindle box.
Fig. 4 is the side view of main shaft and main spindle box.
Fig. 5 is the figure from beneath main shaft and main spindle box.
Fig. 6 is the major part cutaway view of main shaft and main spindle box.
Fig. 7 is the hydraulic circuit figure of the tool cleaning device of embodiment 1.
Fig. 8 is the block diagram of the control system of the tool cleaning device of embodiment 1.
Fig. 9 is the flow chart that represents the cleaning control of the tool cleaning device of embodiment 1.
Figure 10 is the hydraulic circuit figure of the tool cleaning device of embodiment 2.
Figure 11 is the flow chart that represents the cleaning control of the tool cleaning device of embodiment 2.
Detailed description of the invention
Describe the present invention in detail with reference to the accompanying drawing that represents preferred embodiments below.As shown in FIG. 1 to 3, lathe 1 is supported on and on the base station 2 in floor, comprises control cabinet 3 and post 4 at it.The left side of Fig. 2 of lathe 1 is positive (front).Operator is from positive (front) operation lathe 1.Post 4 is the pillars that are upright in the left and right directions central authorities at base station 2 rear portions.In the front side of post 4, (Fig. 1,2 left side) comprises Processing Room to lathe 1.Comprise the platform (not shown) can all around moving in Processing Room inside.Lathe 1 is processed the machining object on platform.
Post 4 supporting spindle casees 5 (with reference to Fig. 3).Main spindle box 5 rises, declines along post 4.Control cabinet 3 is installed on post 4 rear sides (Fig. 1,2 right side).Control cabinet 3 is accommodated control part 9 (with reference to Fig. 8) therein.As shown in Figure 3, main spindle box 5 comprises main shaft 6 in its underpart, comprise at an upper portion thereof driving mechanism 7.Main spindle box 5 is risen, is declined by the driving of driving mechanism 7.Main shaft 6 is rotated centered by the axle of above-below direction.
Lathe 1 comprises ATC (automatic tool change device) 8.As shown in Figure 3,4, ATC8 comprises holding tools portion 17 and tool changing mechanism 18.Holding tools portion 17 is located at the right side of main spindle box 5.Tool changing mechanism 18 is located between main spindle box 5 and holding tools portion 17.
As shown in Figure 4, holding tools portion 17 comprises the multiple Tool pots 15 that are installed on chain 16.Tool pot 15 is kept the tool retainer 21 (with reference to Fig. 6) that instrument 20 is installed.Tool pot 15 moves by the circulation of chain 16, thereby instrument 20 and tool retainer 21 are transported to replacing position (lower position of Fig. 4).Changing position, Tool pot 15 is sent instrument 20 and tool retainer 21 outside holding tools portion 17.
As shown in Figure 5, tool changing mechanism 18 comprises replacing arm 18a.Change arm 18a and rotate centered by the axle parallel with main shaft 6, and rise, decline.Change arm 18a and there is grasping part 18b at its two ends.Grasping part 18b moves between the lower position of main shaft 6 and the replacing position of holding tools portion 17 by changing rotating of arm 18a.Grasping part 18b catches tool retainer 21 in replacing position.Grasping part 18b catches tool retainer 21 at the lower position of main shaft 6.
Change arm 18a and decline with the state of catching tool retainer 21, instrument 20 and tool retainer 21 are taken off from Tool pot 15 or main shaft 6.Change arm 18a and rotate 180 ° at down position.Instrument 20 and tool retainer 21 move to the lower position of main shaft 6 from changing position, or move to changing position from the lower position of main shaft 6.Change arm 18a and rise after rotating, instrument 20 and tool retainer 21 are embedded to main shaft 6 or Tool pot 15.
As shown in Figure 6, tool retainer 21 comprises main shaft installation portion 21a and instrument maintaining part 21b.Instrument maintaining part 21b has two cylindrical portion.The cylindrical portion of below is caught instrument 20.The diameter of the cylindrical portion of top is larger than the diameter of the cylindrical portion of below.Main shaft installation portion 21a is the conus portion continuous with the upper surface of the cylindrical portion of top.
Main shaft 6 has the tool mounting hole 19 at lower surface opening.Tool mounting hole 19 is conical holes corresponding with main shaft installation portion 21a.Tool retainer 21 is by being installed on main shaft 6 in main shaft installation portion 21a insertion tool installing hole 19.The main shaft installation portion 21a of tool retainer 21 is close in tool mounting hole 19.The upper surface 21c of instrument maintaining part 21b is close to main shaft 6 lower surfaces.Main shaft installation portion 21a and upper surface 21c position tool retainer 21.
Main spindle box 5 is supported to rotation freely by main shaft 6.Main spindle box 5 comprises the mainshaft cap 22 of ring-type in its lower end.The multiple bolts 23 of mainshaft cap 22 use are fixed on main spindle box 5 lower surfaces.Main shaft 6 lower surfaces expose from the centre bore of mainshaft cap 22.Between main shaft 6 lower surfaces and mainshaft cap 22, clogged by the end face lid 24 of ring-type.End face lid 24 is to be fixed on main shaft 6 lower surfaces with the form of mainshaft cap 22 lower surface butts.
Instrument 20 rotates together with main shaft 6.Instrument 20 rises, declines together with main spindle box 5.Instrument 20 is processed machining object on the platform of Processing Room inside.Machining object moves up at fore-and-aft direction, right and left together with platform.
Lathe 1 comprises tool cleaning device.Tool cleaning device cleaned instrument 20 and tool retainer 21 before instrument 20 and tool retainer 21 are installed on to main shaft 6.Mainshaft cap 22 has endless groove 25 at its lower surface.Endless groove 25 is disposed at the outside of end face lid 24 peripheries.Endless groove 25 is formed member 26 by the nozzle of ring-type and clogs.Nozzle formation member 26 is installed on the lower surface of mainshaft cap 22.Nozzle forms member 26 and has the nozzle bore 29 in the ring-type of lower surface opening.Nozzle forms the height of member 26 lower surfaces and the height of main shaft 6 lower surfaces is roughly the same.Nozzle bore 29 is to the oblique formation in center of main spindle box 5 and main shaft 6.
Endless groove 25 is connected with the feed flow hole 27 of being located at mainshaft cap 22.Feed flow hole 27 is in the peripheral openings of mainshaft cap 22.Feed flow hole 27 is connected with cleaning fluid flexible pipe 28.Cleaning fluid flexible pipe 28 is supplied with cleaning fluid A.Cleaning fluid A enters in endless groove 25 via feed flow hole 27, and sprays from nozzle bore 29.As shown in Figure 6, cleaning fluid A sprays to the tool retainer 21 and the instrument 20 that are positioned at main shaft 6 belows, cleaning means keeper 21 and instrument 20.Nozzle forms member 26 and nozzle bore 29 forms remover liquid nozzle 30.Endless groove 25, feed flow hole 27, cleaning fluid flexible pipe 28 form a part for cleaning fluid path.
As shown in Figure 1, lathe 1 comprises cooling fluid unit 10.Cooling fluid unit 10 comprises case 11, accumulator tank 12, the first pump 13, the second pump 14.Case 11 is containers of box-shaped, accommodates to the cooling fluid (cleaning fluid) of supplying with in Processing Room.Accumulator tank 12, the first pump 13, the second pump 14 are arranged on case 11.Cooling fluid unit 10 is detachable with respect to base station 2 rear sides.Fig. 1 represents to pull down the state of cooling fluid unit 10.Fig. 2 represents to be provided with the state of cooling fluid unit 10.Accumulator tank 12 can be connected with the discharge portion 2a of base station 2 rear sides (with reference to Fig. 1).Accumulator tank 12 is reclaimed the cooling fluid (cleaning fluid) concentrating on after the use of discharge portion 2a.Accumulator tank 12 is connected with case 11.The cooling fluid (cleaning fluid) that is recovered to accumulator tank 12 inside turns back in case 11 via filter (not shown).The first pump 13 and the second pump 14 draw up the cooling fluid of case 11 inside (cleaning fluid) come, and send to Processing Room.The first pump 13 is the shared pumps of cooling fluid, cleaning fluid.The discharge pressure of the first pump 13 is 0.030MPa～0.045MPa.
As shown in Figure 7, the discharge side of the first pump 13 is connected with one end of coolant pipe 31.Coolant pipe 31 extends to Processing Room inside.Cooling fluid sprays in Processing Room from the first nozzle (not shown) of being located at coolant pipe 31 other ends.Cooling fluid Processing Room inside by processing in instrument and machining object cooling.The second pump 14 is the special pumps of cooling fluid.The discharge pressure of the second pump 14 is greater than the discharge pressure of the first pump 13.The discharge side of the second pump 14 is connected with one end of the second coolant pipe (not shown).The second coolant pipe extends to Processing Room inside.Cooling fluid sprays in Processing Room from the second nozzle (not shown) of being located at the second coolant pipe other end.Cooling fluid, by cooling to instrument and machining object in processing, and washes away the smear metal producing in processing department.
Coolant pipe 31 is the way cleaning fluid pipe 32 that diverges out therein.Cleaning fluid pipe 32 is connected with remover liquid nozzle 30 by cleaning fluid flexible pipe 28.Cleaning fluid is a part for the cooling fluid sent of the first pump 13.Cleaning fluid is in the internal flow of cleaning fluid pipe 32 and cleaning fluid flexible pipe 28 and arrive remover liquid nozzle 30, via feed flow hole 27, endless groove 25 and spray from nozzle bore 29.Cleaning fluid cleaning means keeper 21 and instrument 20 that remover liquid nozzle 30 sprays.Clean the discharge portion 2a that complete cleaning fluid concentrates on base station 2 rear sides, turn back in case 11 via accumulator tank 12.A part for coolant pipe 31, cleaning fluid pipe 32, cleaning fluid flexible pipe 28, feed flow hole 27, endless groove 25 form the cleaning fluid path of tool cleaning device.As shown in Figure 7, cleaning fluid pipe 32 comprises filter 33, open and close valve 34, storagetank 50, supplying valve 35.Filter 33 is removed the foreign matter in cleaning fluid.Open and close valve 34 is disposed at the downstream of filter 33.Supplying valve 35 is disposed at the downstream of open and close valve 34.Storagetank 50 is disposed between open and close valve 34 and supplying valve 35.Storagetank 50 is the containers that can store ormal weight cleaning fluid therein.As shown in Figure 1, 2, storagetank 50 is installed on the rear upper lateral part of post 4.Open at open and close valve 34, and during supplying valve 35 closes, storagetank 50 is stored the cleaning fluid of cleaning fluid pipe 32 inside.
Supplying valve 35 is connected with compressed gas source 39 (being equivalent to pressure source) by air road 40.As shown in Figure 7, under normal conditions, supplying valve 35 is in the closed position.Air road 40 comprises the first magnetic valve 44.Under normal conditions, the first magnetic valve 44 is in the closed position.The air of 40 inside, air road is discharged after noise elimination part 44a noise reduction.The OPEN that the first magnetic valve 44 sends according to control part 9 is converted to open position.Compressed gas source 39 is supplied with air pressure due to opening of the first magnetic valve 44 to supplying valve 35.In the time that air pressure is supplied to supplying valve 35, supplying valve 35 is converted to open position, and during supplying valve 35 is opened, remover liquid nozzle 30 sprays the cleaning fluid of storagetank 50 inside.Open and close valve 34 is connected with compressed gas source 39 by air road 41.As shown in Figure 7, under normal conditions, open and close valve 34 is in the closed position.Air road 41 comprises the second magnetic valve 57.Under normal conditions, the second magnetic valve 57 is in the closed position.The air of 41 inside, air road is discharged after noise elimination part 57a noise reduction.The OPEN that the second magnetic valve 57 sends according to control part 9 is converted to open position.Compressed gas source 39 is supplied with air pressure due to opening of the second magnetic valve 57 to open and close valve 34.In the time that air pressure is supplied to open and close valve 34, open and close valve 34 is converted to open position, and the cleaning fluid of cleaning fluid pipe 32 inside is sent to storagetank 50.
As shown in Figure 7, storagetank 50 is connected with switching valve 55 by access 37.Switching valve 55 is connected with compressed gas source 39 by pressurization road 42, and is connected with cooling fluid unit 10 by pressure release road 43.Under normal conditions, open and close valve 34 is in vent position.Storagetank 50 is by access 37 and pressure release road 43 and be communicated with cooling fluid unit 10.Discharge the pressure of storagetank 50 inside on pressure release road 43 to cooling fluid unit 10.The conversion instruction that switching valve 55 sends according to control part 9 is converted to pressing position.Storagetank 50 is communicated with compressed gas source 39 with pressurization road 42 by access 37.Pressurization road 42 utilizes the air pressure of compressed gas source 39 and is pressurizeed in storagetank 50 inside.As mentioned above, remover liquid nozzle 30 is because opening of the first magnetic valve 44 sprays cleaning fluid.Remover liquid nozzle 30 sprays the cleaning fluid of 50 inside of the storagetank in pressurized state forcefully.
Storagetank 50 comprises liquid level sensor 53 and pressure sensor 54.Liquid level sensor 53 comprises sensor main body 53a, the first non-contact switch 53b, the second non-contact switch 53c.Sensor main body 53a is included in the inside rising of pipe, the buoy declining, and the bottom of this pipe is connected with storagetank 50.In the time that the buoy of sensor main body 53a approaches non-contact switch 53b, 53c, non-contact switch 53b, 53c become connection.Non-contact switch 53b, 53c configure dividually at above-below direction.Non-contact switch 53b, 53c export make-and-break signal to control part 9.Control part 9, by the connection of the first non-contact switch 53b, is identified in high position the liquid level of storagetank 50 inside.Control part 9, by the disconnection of the second non-contact switch 53c, is identified in lower position the liquid level of storagetank 50 inside.Liquid level sensor 53 can be also the liquid level sensor by other modes of the ultrasonic type liquid level sensor of the liquid level of ultrasound examination storagetank 50 inside etc.Pressure sensor 54 detects the pressure of storagetank 50 inside, and detection signal is exported to control part 9.Control part 9, with reference to the detection signal of pressure sensor 54, is identified in pressurized state storagetank 50 inside.
As shown in Figure 8, control part 9 is the computers that connect CPU9a, ROM9b, RAM9c, input interface 9d and output interface 9e by common bus.CPU9a moves according to the control program that is stored in ROM9b, thereby control part 9 is controlled the whole processing action of lathe 1.The control range of control part 9 comprises: rotation, rising and the decline control of instrument 20, the mobile control of machine table, the action control of ATC8, the control of tool cleaning device.Fig. 8 has only represented the part relevant to the control of tool cleaning device.
Input interface 9d is connected with operating portion 90, liquid level sensor 53, pressure sensor 54,68.Operating portion 90 is operated by operator.Operator is by operating operation portion 90, and input generates the required information of procedure.Procedure is formed by multiple operation program pieces, is stored in RAM9c.
As mentioned above, liquid level sensor 53 detects the liquid level of storagetank 50 inside.Pressure sensor 54 detects the pressure of storagetank 50 inside.Pressure sensor 68 detects the air pressure that compressed gas source 39 is sent.The detection signal of the input message of operating portion 90, liquid level sensor 36, pressure sensor 54,68 is delivered to CPU9a by input interface 9d.Output interface 9e is connected with the drive circuit 82 of the first pump 13, the drive circuit 83 of the first magnetic valve 44, the drive circuit 84 of the second magnetic valve 57, the drive circuit 85 of switching valve 55.CPU9a sends action command by output interface 9e to drive circuit 82, drives the first pump 13.CPU9a sends OPEN by output interface 9e to drive circuit 83, opens the first magnetic valve 44.Supplying valve 35 is become and is opened by the air pressure of compressed gas source 39.CPU9a sends OPEN by output interface 9e to drive circuit 84, opens the second magnetic valve 57.Open and close valve 34 is become and is opened by the air pressure of compressed gas source 39.CPU9a sends conversion instruction by output interface 9e to drive circuit 85, and switching valve 55 is converted to pressing position from vent position.
Storagetank 50 becomes low pressure by changing switching valve 55 into vent position, and switching valve 55 is changed into pressing position and becomes high pressure.Open and close valve 34 is opened between low pressure period in storagetank 50 inside.Storagetank 50 is stored the cleaning fluid of cleaning fluid pipe 32 inside.Supplying valve 35 is opened between full pressure period in storagetank 50 inside.The cleaning fluid of storagetank 50 inside sprays from remover liquid nozzle 30 at high speed, cleaning means 20 and tool retainer 21.
The CPU9a of control part 9 carries out cleaning action by step (with reference to Fig. 9) below.Cleaning action is the interruption processing that CPU9a carries out with specified period.CPU9a reads in various signals (S1).Various signals are detection signal, detection signals of pressure sensor 54,68 etc. of liquid level sensor 53.Whether CPU9a normally judges (S2) to the air pressure of compressed gas source 39.The judgement of S2 is implemented according to the detection signal of pressure sensor 68.At air pressure, while being normal (S2: be), CPU9a judges the driving condition (S3) of the first pump 13.In the time driving the first pump 13, CPU9a is stored in RAM9c by the first pump 13 in this situation of driving condition.The judgement of S3 is implemented with reference to RAM9c.
In the time that the first pump 13 is non-driven state (S3: no), CPU9a does not carry out cleaning action.In the time that the first pump 13 is driving condition (S3: be), whether CPU9a is to having tool changing instruction to judge (S4).Procedure comprises tool changing instruction at each operation program piece.CPU9a explains the operation program piece block-by-block of the procedure that is stored in RAM9c and carry out.While carrying out machining control according to procedure, CPU9a has determined whether tool changing instruction with reference to RAM9c.There is no tool changing instruction in operation program piece time (S4: no), CPU9a does not carry out cleaning action.At the air pressure of compressed gas source 39, for normal (S2: be), the first pump 31 are for driving condition (S3: be) and while having tool changing instruction (S4: be), CPU9a carries out cleaning action.
CPU9a by the first magnetic valve 44 open, switching valve 55 connects, and allows the beginning (S5) of tool changing.Supplying valve 35 is opened.Switching valve 55 becomes pressing position.Storagetank 50 extrudes storage liquid under the effect of air pressure.Remover liquid nozzle 30 sprays cleaning fluid forcefully.Allow action by CPU9a, ACT8 starts tool changing.The cleaning fluid cleaning means 20 that remover liquid nozzle 30 sprays and tool retainer 21.
CPU9a is by the pressure P of storagetank 50 inside and P1 comparison (S6).Pressure P can be obtained by the detection signal of pressure sensor 54.P1 is the pressure (be for example 0.4MPa) less than the air pressure of compressed gas source 39.P1 is stored in RAM9c.In the time that P is more than P1 (S6: be), whether CPU9a judges (S7) in lower position to the liquid level of storagetank 50 inside.The detection signal of the judgement tested liquid face sensor 53 of S7 and carrying out.At the liquid level of storagetank 50 inside not when lower position (S7: no), CPU9a to tool changing whether complete judge (S8).The judgement of S8 is for example implemented according to the position of main spindle box 5.The position of main spindle box 5 is detected by encoder (not shown).When tool changing not complete (S8: no), CPU9a carries out the judgement of S6, S7, S8 repeatedly.In storagetank 50 inside, when high pressure (S6: be), remover liquid nozzle 30 sprays cleaning fluid, until the cleaning fluid of storagetank 50 inside lacks (S7: be), or till tool changing complete (S8: be).The liquid level of storagetank 50 inside is when lower position (S7: be), or when tool changing complete (S8: be), CPU9a closes the first magnetic valve 44, and switching valve 55 is disconnected to (S9).Supplying valve 35 is closed.Switching valve 55 returns to vent position.Remover liquid nozzle 30 stops the ejection of cleaning fluid, and storagetank 50 inside become low pressure.
CPU9a is by the pressure P of storagetank 50 inside and P2 comparison (S10).P2 is the pressure (be for example 0.01MPa) less than the discharge pressure of the first pump 13.P2 is stored in RAM9c.CPU9a, until P becomes the standby than P2 little (S10: be), opens (S11) by the second magnetic valve 57.Open and close valve 34 is opened.The cleaning fluid of cleaning fluid pipe 32 inside flows into storagetank 50 via open and close valve 34.The pressure P of storagetank 50 inside is less than the discharge pressure of the first pump 13.Therefore, cleaning fluid does not flow backwards and stays in storagetank 50 inside.Whether CPU9a judges (S12) to the liquid level of storagetank 50 inside in high position.At liquid level, not in high position when (S12: no), CPU9a carries out the action of S9, S10, S11, S12 repeatedly.Liquid level is in high position when (S12: be), and CPU9a closes the second magnetic valve 57, and switching valve 55 is connected to (S13), finishes cleaning action.
Open and close valve 34 is closed.Switching valve 55 is converted to pressing position.Storagetank 50 storages, than the high-order cleaning fluid setting high, become pressurized state.Tool cleaning device is until next cleaning action standby.In S6, the pressure P that is judged to be storagetank 50 inside is during than P1 little (S6: no), and CPU9a closes the first magnetic valve 44, the second magnetic valve 57, and switching valve 55 is disconnected.Supplying valve 35 is closed.Remover liquid nozzle 30 does not spray cleaning fluid.Open and close valve 34 is closed.Cleaning fluid is not supplied with to storagetank 50.Switching valve 55 returns to vent position.Storagetank 50 inside become low pressure.Whether CPU9a judges (S15) in lower position to the liquid level of storagetank 50 inside.At the liquid level of storagetank 50 inside, when lower position (S15: be), CPU9a is by the pressure P of storagetank 50 inside and P2 comparison (S16).CPU9a, until P becomes the standby than P2 little (S16: be), opens (S17) by the second magnetic valve 57.Open and close valve 34 is opened.The cleaning fluid of cleaning fluid pipe 32 inside flows into storagetank 50 via open and close valve 34.Storagetank 50 is stored cleaning fluid, and the liquid level of storagetank 50 inside rises.Whether CPU9a judges (S18) to the liquid level of storagetank 50 inside in high position.Liquid level is not in high position when (S18: no), and the second magnetic valve 57 is remained open mode by CPU9a, the standby until liquid level rises.Liquid level is in high position when (S18: be), and S13 is transferred in processing by CPU9a, the second magnetic valve 57 cuts out, and switching valve 55 is connected to (S13), finishes cleaning action.In the judgement of S15, the liquid level of storagetank 50 inside is not when lower position (S15: no), and switching valve 55 is connected (S19) by CPU9a.Switching valve 55 is converted to pressing position.Storagetank 50 utilizes the air pressure of compressed gas source 39 to become pressurized state.S6 is transferred in processing by CPU9a, and more than the pressure P of storagetank 50 inside becomes P1, thereby CPU9a carries out the cleaning action of S7 to S12.
In S6, when the pressure P of storagetank 50 inside is low, CPU9a checks the cleaning fluid storage capacity of storagetank 50 inside.In the time that cleaning fluid storage capacity is few, CPU9a carries out S16 to S18.Storagetank 50 is stored cleaning fluid.Become the moment of regulation storage capacity at the cleaning fluid storage capacity of storagetank 50 inside, CPU9a is pressurizeed and tenth skill to storagetank 50 inside.In this case, remover liquid nozzle 30 does not spray cleaning fluid, not cleaning means 20 and tool retainer 21.When cleaning fluid storage capacity in storagetank 50 inside is many, CPU9a carries out S19, is pressurizeed in storagetank 50 inside.Finish after pressurization, CPU9a carries out S9 to S12.In this case, remover liquid nozzle 30 sprays cleaning fluid, cleaning means 20 and tool retainer 21.
The tool cleaning device of embodiment 1 comprises storagetank 50.Remover liquid nozzle 30 will be stored in the cleaning fluid ejection of storagetank 50 inside.Storagetank 50 is positioned near remover liquid nozzle 30.The cleaning fluid of storagetank 50 inside arrives remover liquid nozzle 30 via shorter path.That remover liquid nozzle 30 responds is fine, stably spray cleaning fluid.The tool cleaning device of embodiment 1 comprises pressurization road 42.Pressurizeed with air pressure to storagetank 50 inside in pressurization road 42.The cleaning fluid of storagetank 50 inside sprays from remover liquid nozzle 30 forcefully, and can be at short notice cleaning means 20 and tool retainer 21 reliably.
Switching valve 55, when in pressing position, is opened pressurization road 42, and when in vent position, is opened pressure release road 43.Storagetank 50 can pressurize and pressure release by the action of a switching valve 55.Pressurize and occur when different with pressure release, can implement reliably to clean and clean and prepare.Under the state of closing at supplying valve 35 and open and close valve 34, switching valve 55 is converted to described pressing position.The air pressure of compressed gas source 39 can be pressurizeed to storagetank 50 inside of closed condition reliably.The tool cleaning device of embodiment 1 comprises the pressure sensor 54 that the pressure of storagetank 50 inside is detected.Control part 9 can be identified by the detection signal of pressure sensor 54 pressurization and the pressure release of storagetank 50, controls reliably supplying valve 35, open and close valve 34, switching valve 55.
Supplying valve control part is CPU9a.Open and close valve control part is CPU9a.Judging part is the CPU9a that carries out S4.Pressure judging part is the CPU9a that carries out S10, S16.Switching valve control part is the CPU9a that controls switching valve 55.
Below, embodiment 2 is described.As shown in figure 10, the storagetank 50 of embodiment 2 comprises pressure switch 54a.Be authorized pressure (P1) when above in storagetank 50 internal pressures, pressure switch 54a exports connection signal to control part 9.Other structures of the hydraulic circuit of embodiment 2 are identical with the tool cleaning device of embodiment 1.In Figure 10, the structural elements identical with embodiment 1 marked to the symbol identical with Fig. 7.
The CPU9a of control part 9 carries out cleaning action by step (with reference to Figure 11) below.Step shown in Figure 11 is not identical with the processing of the step S6 shown in Fig. 9, S10, S16.In the step of Figure 11, replace S6, whether pressure switch 54a has been connected and judged (S26).In the step of Figure 11, replace S10, built-in timer starts timing (S30), and whether CPU9a has reached the stipulated time (T1) to timing is judged (S31).In the step of Figure 11, replace S16, built-in timer starts timing (S37), and whether CPU9a has reached the stipulated time (T1) to timing is judged (S38).T1 be switching valve 55 is converted to vent position after, until the pressure release of storagetank 50 inside finishes the needed time.T1 is stored in RAM9c.The tool cleaning device of embodiment 2 comprises pressure switch 54a.By the connection signal of pressure switch 54a, control part 9 is identified storagetank 50 in this situation of pressurized state.Be converted to the vent position elapsed time afterwards by switching valve 55, control part 9 is identified storagetank 50 in this situation of pressure release state.The tool cleaning device of embodiment 2 does not need pressure sensor 54, therefore, and the simplification of energy implementation structure.Pressure judging part is the CPU9a that carries out S31, S38.
The following describes the variation of embodiment above having been carried out to partial alteration.
(1), in the tool cleaning device of embodiment, utilize a switching valve 55 to come opening/closing pressurization road 42 and pressure release road 43.But also can utilize respectively independently valve to come opening/closing pressurization road 42 and pressure release road 43.
(2) comprise a storagetank 50 at the tool cleaning device of embodiment.But also can comprise multiple storagetanks 50.
(3) pressure source also can replace compressed gas source 39 to pressurize with the hydraulic power source of oil pressure etc.
Claims (5)
1. a tool cleaning device, comprising:
Accommodate the case of cleaning fluid;
Can spray the remover liquid nozzle of cleaning fluid; And
This remover liquid nozzle is connected with described case, and the cleaning fluid path that the cleaning fluid of described case inside is supplied with to described remover liquid nozzle,
Utilize the cleaning fluid of described remover liquid nozzle ejection to clean the instrument and the tool retainer that are installed on machine tool chief axis, it is characterized in that, comprising:
Storagetank, this storagetank is disposed at described cleaning fluid path, and by the described cleaning fluid storage in this cleaning fluid path internal flow;
Supplying valve, this supplying valve is disposed at the described cleaning fluid path between described storagetank and described remover liquid nozzle, and this cleaning fluid path of energy opening/closing;
Supplying valve control part, described supplying valve connects by air Lu Eryu pressure source, and this supplying valve control part carrys out supplying valve described in opening/closing by the first magnetic valve of being located at described air road being carried out to opening/closing control;
Pressurization road, this pressurization road is connected described storagetank with pressure source, and can utilize the pressure of this pressure source to pressurize to described storagetank inside;
Open and close valve, this open and close valve is disposed at the described cleaning fluid path between described storagetank and described case, and this cleaning fluid path of energy opening/closing;
Open and close valve control part, described open and close valve connects by air Lu Eryu pressure source, and this open and close valve control part carrys out open and close valve described in opening/closing by the second magnetic valve of being located at described air road being carried out to opening/closing control;
Judging part, whether this judging part is to being that tool changing instruction judges; And
Pressure judging part, whether this pressure judging part judge than the supply pressure of described cleaning fluid is little the pressure of described storagetank inside,
In the time that described judging part is judged as YES tool changing instruction, described supplying valve control part is by described storagetank and described pressure-source communication, and described supplying valve is opened, thereby make to be sprayed from described remover liquid nozzle by the cleaning fluid in the described storagetank after the exert pressure of described pressure source, be judged as the supply pressure hour of cleaning fluid described in the pressure ratio of described storagetank inside at described pressure judging part, described open and close valve control part is opened described open and close valve, and the cleaning fluid in described case is supplied with to described storagetank.
2. tool cleaning device as claimed in claim 1, it is characterized in that, also comprise pressure release road and switching valve, this pressure release road is connected with described storagetank and described case, and the air pressure of described storagetank inside can be discharged to described case, between the vent position that described switching valve can be opened at the pressing position that described pressurization road is opened and by described pressure release road, change.
3. tool cleaning device as claimed in claim 2, is characterized in that, comprises switching valve control part, and this switching valve control part, under the state that described supplying valve and open and close valve are closed, is converted to described pressing position by described switching valve.
4. tool cleaning device as claimed any one in claims 1 to 3, it is characterized in that, comprise pressure sensor, this pressure sensor detects the pressure of described storagetank inside, and described pressure judging part judges according to the detected pressures of described pressure sensor.
5. tool cleaning device as claimed in claim 2 or claim 3, is characterized in that, continues the stipulated time during in pressure release state on described pressure release road, and it is little that described pressure judging part is judged as described in the pressure ratio of described storagetank inside the supply pressure of cleaning fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010011684A JP5402668B2 (en) | 2010-01-22 | 2010-01-22 | Tool cleaning equipment for machine tools |
| JP2010-011684 | 2010-01-22 |
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| Publication Number | Publication Date |
|---|---|
| CN102133719A CN102133719A (en) | 2011-07-27 |
| CN102133719B true CN102133719B (en) | 2014-07-30 |
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| CN201110027161.6A Active CN102133719B (en) | 2010-01-22 | 2011-01-20 | Tool cleaning device |
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| JP (1) | JP5402668B2 (en) |
| CN (1) | CN102133719B (en) |
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| JP5966729B2 (en) * | 2012-07-30 | 2016-08-10 | ブラザー工業株式会社 | Machine Tools |
| JP6311386B2 (en) * | 2014-03-24 | 2018-04-18 | ブラザー工業株式会社 | Tool cleaning device and machine tool |
| JP6367782B2 (en) * | 2015-11-20 | 2018-08-01 | ファナック株式会社 | Machine Tools |
| CN107322366A (en) * | 2017-07-10 | 2017-11-07 | 河南鑫轴传动机械有限公司 | One kind transmission aixs cylinder member fork boring upright drill cooling device of earhole |
| JP6603286B2 (en) * | 2017-10-20 | 2019-11-06 | ファナック株式会社 | Cutting fluid supply device for machine tools |
| CN114367695B (en) * | 2022-03-03 | 2023-01-20 | 沧州德安防爆特种工具制造有限公司 | Tool changing device for machining explosion-proof wrench and milling machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5402668B2 (en) | 2014-01-29 |
| CN102133719A (en) | 2011-07-27 |
| JP2011148047A (en) | 2011-08-04 |
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