CN102540970B - The control method of lathe and lathe - Google Patents
The control method of lathe and lathe Download PDFInfo
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Abstract
The present invention relates to the control method of lathe and lathe.Even if this lathe sends cutter changing instruction and also automatically can perform in the suitable moment with the auxiliary movement instruction performed side by side simultaneously.CPU reads the content of each instruction and execution moment with reference to form, sort, be stored into RAM according to the order performing the moment to command content.When instruction is cutter changing instruction (S3: yes), CPU performs Z axis rising process, and main tapping rises to cutter changing position (ATC initial point) from current location.When main tapping 7 rises to R point (S5: yes), when having in the content of instruction being stored in RAM (73) when performing the instruction that moment A performs (S6: yes), perform the content (S7) of the instruction performed at this execution moment A.
Description
Technical field
The present invention relates to the control method of a kind of lathe and lathe.
Background technology
Lathe has multiple cutters that can load and unload, and the cutter specified by the job sequence inputted can be arranged on main shaft successively carry out various processing continuously with dialog mode.Japanese Patent application discloses the lathe of No. 314236 publication in 2004 when changing the cutter be arranged on main shaft, in order to prevent workpiece and cutter interfere and make main tapping move to cutter changing region (ATC initial point) from machining area.Lathe carries out cutter changing operation and auxiliary movement side by side, shortens the activity duration.
Above-mentioned lathe carries out the first auxiliary movement (such as B CD signal exports) after replacing cutter, then carries out the second auxiliary movement (such as main shaft rotates forward), then carries out the 3rd auxiliary movement (such as tool magazine rotation).Therefore, exist and can not shorten cutter changing cycle such problem.
Summary of the invention
Even if the object of the present invention is to provide a kind of auxiliary movement instruction sending cutter changing instruction and perform side by side with cutter changing instruction simultaneously, also can automatically perform cutter changing instruction and auxiliary movement instruction in the suitable moment and shorten lathe and the control method in cutter changing cycle.
The lathe of technical scheme 1 comprises: main shaft drives portion, and it rotates for driving the main shaft with cutter; Main tapping moving part, it moves for making main tapping, and this main tapping enables above-mentioned main shaft support this main shaft rotatably; Cutter changing device; Control part, it controls above-mentioned main shaft drives portion, above-mentioned main tapping moving part and above-mentioned cutter changing device according to job sequence, wherein, the block program formed in multiple pieces of programs of above-mentioned job sequence has storage part, this storage part at least records cutter changing instruction and auxiliary movement instruction, store the many groups of groups movement content of above-mentioned auxiliary movement instruction, this instruction and the execution moment of this action formed with corresponding to each other, above-mentioned control part performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction according to the above-mentioned execution moment.
Therefore, in this lathe, above-mentioned control part performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction with reference to the execution moment of above-mentioned storage part, even if therefore indicate cutter changing instruction and the instruction that will perform side by side simultaneously, automatically perform these instructions in the suitable moment with also can considering execution sequence.
In this lathe, in the above-mentioned execution moment one can be performed the moment be set to cutter and workpiece and fixture irrelevant disturb first perform the moment.In this configuration, cutter and workpiece and fixture is irrelevant disturbs.
Another in the above-mentioned execution moment can be performed that moment be set to that the cutter changing that undertaken by above-mentioned cutter changing device terminates second performs the moment.In this configuration, the action that will perform can be performed side by side from the second execution moment that cutter changing terminates.
The above-mentioned execution moment also can be the above-mentioned second execution moment performing the regulation after the moment.In this configuration, the action that will perform can be performed side by side from the execution moment of the regulation after the second execution moment that cutter changing terminates.
Technical scheme 5 is control methods of a kind of lathe, and this lathe comprises: main shaft drives portion, and it rotates for driving the main shaft with cutter, main tapping moving part, it moves for making main tapping, and this main tapping enables above-mentioned main shaft support this main shaft rotatably, cutter changing device, control part, it controls above-mentioned main shaft drives portion according to job sequence, above-mentioned main tapping moving part and above-mentioned cutter changing device, the block program formed in multiple pieces of programs of above-mentioned job sequence has form, this form at least records cutter changing instruction and auxiliary movement instruction, store many groups by above-mentioned auxiliary movement instruction, the group that execution moment of the movement content of this instruction and this action forms with corresponding to each other, this control method is the control method utilizing the above-mentioned control part of lathe to carry out, wherein, computing machine as control part performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction according to the above-mentioned execution moment.
In above-mentioned control method, computing machine as control part performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction according to the execution moment be stored in above-mentioned storage part, even if therefore indicate cutter changing instruction and the instruction that will perform side by side simultaneously, automatically perform in the suitable moment with also can considering execution sequence.
Accompanying drawing explanation
Fig. 1 is the front view of lathe.
Fig. 2 is the stereographic map of the lathe after removing guard shield.
Fig. 3 is the cutter changing mechanism of lathe and the front view of main tapping.
Fig. 4 is the block diagram of the electrical structure representing lathe.
Fig. 5 is the schematic diagram of the storage area of storage part.
Fig. 6 is the schematic diagram performing the form of process arranged side by side of the auxiliary movement in cutter changing action.
Fig. 7 is the sequential chart performing process arranged side by side of the auxiliary movement in cutter changing action.
Fig. 8 is the process flow diagram performing process arranged side by side of the auxiliary movement in cutter changing action.
Embodiment
Use Fig. 1 explanation as the one-piece construction of the lathe 1 of embodiments of the present invention.Lathe 1 makes workpiece (not shown) and cutter 6 (with reference to Fig. 3) relative movement, workpiece is implemented to the machining (milling, boring, cutting etc.) expected.Lathe 1 has machine tool main body 11 (with reference to Fig. 2), base 2, guard shield 3.
Base 2 is pedestals made of iron of machine tool main body 11.Base 2 has leg 2a in the corner of bottom.Four leg 2a are fixed on the ground of factory etc., thus lathe 1 is arranged on assigned position.
Guard shield 3 is positioned at the top of base 2.Guard shield 3 is formed as surrounding the roughly rectangular-shaped of machine tool main body 11, has machining area in the inner side of guard shield 3.Machine tool main body 11 carries out work pieces process at machining area.Guard shield 3 has the shutter door 4,5 of the horizontal movable type making peristome opening and closing at front surface.Shutter door 4,5 has windowpane portion 4a, 5a in substantial middle.Shutter door 4 has handle portion 4b near right-hand end, and shutter door 5 has handle portion 5b near left end.Handle portion 4b, 5b is made to open to the direction mutually left and open peristome.Staff carries out the handling of workpiece relative to the worktable 10 in guard shield 3 via peristome.
Guard shield 3 is by surrounding machine tool main body 11 from outer protection machine tool main body 11.Guard shield 3 stops the cutting swarf of machine tool main body 11 discharge when work pieces process and cutting fluid etc. externally to be dispersed.
Guard shield 3 has the guidance panel 80 for operating lathe 1 at positive right side of face.Guidance panel 80 is formed as main and looks roughly oblong-shaped, has the keyboard 81 comprising various key at the front surface of guidance panel 80.Have on the top of keyboard 81 for display setting picture and the CRT (display) 89 performed an action.
The keyboard 81 of guidance panel 80 has multiple key, button.
The content of operation of operated by personnel's keyboard 81 is reflected in the display frame of CRT89 by guidance panel 80.Therefore, staff can with reference to the display frame of CRT89 while use keyboard 81 to carry out the editor etc. of NC program (utilizing the job sequence that NC language makes), cutter data.
As shown in Figure 2, machine tool main body 11 is fixed on the upper surface of the Upright post base portion 17a of base 2.Machine tool main body 11 is formed primarily of column 17b, main tapping 7, main shaft 9, cutter changing mechanism 20, worktable 10, console panel 19.Column 17b is formed as to the extended roughly flat column of vertical direction.Main tapping 7 is elevated along the front surface of column 17b.Main shaft 9 is outstanding below vertical from the lower front side of main tapping 7.Cutter changing mechanism 20 is positioned at the right side of main tapping 7, changes the cutter 6 on the top being arranged on main shaft 9.Worktable 10 is positioned at the top of base 2, detachably holding workpiece.Console panel 19 is positioned at the rear side of column 17b, for holding the control device 70, the supply unit that control lathe 1.
Column 17b has a pair guide rail (not shown) extended along above-below direction at front surface.Guide rail guides main tapping 7.Column 17b has the Z axis motor 86 (with reference to Fig. 4) as servo motor at upper surface.Z axis motor 86 by the both forward and reverse directions optionally feed leading screw (not shown) that extends downward of rotary actuation, thus makes main tapping 7 be elevated.
Main tapping 7 has Spindle Motor 8 on top.Main tapping 7 installs this main shaft 9 in the mode that the main shaft 9 being equivalent to machining shaft can rotate.Cutter 6 is arranged on the top of main shaft 9.Spindle Motor 8 drive shaft 9 rotates, thus cutter 6 rotates, and processes the workpiece be fixed on worktable 10.
Worktable 10 is positioned at the below of main shaft 9.Fixture (not shown) is fixed on worktable 10.Fixture is with can the mode fixation workpiece of workpiece loading and unloading.Supporting station 12 is positioned at the downside of worktable 10.Supporting station 12 is formed as roughly rectangular-shaped.X-axis conveying guiding piece (not shown) is formed as a pair, extends along X-direction (being left and right directions in FIG) on the top of supporting station 12.X-axis conveying guiding piece makes worktable 10 can on top movably at upper support worktable 10.Y-axis conveying guiding piece (not shown) is formed as a pair, and the long axis direction along base 2 extends.Y-axis conveying guiding piece makes worktable 12 can on top movably at upper support worktable 12.Mobile to X-direction (left and right directions) along X-axis conveying guiding piece under the driving of the X-axis motor 87 of worktable 10 on supporting station 12.Mobile to Y direction (depth direction) along Y-axis conveying guiding piece under the driving of the Y-axis motor 88 of worktable 10 on base 2.
X-axis motor 87, Y-axis motor 88 are servo motors.
As shown in Figure 3, cutter changing mechanism 20 has tool magazine 30 and cutter changing arm 40.
Cutter changing arm 40 catches the cutter holder 60 be arranged on main shaft 9 to carry with other cutter holder 60.Cutter changing arm 40 is formed primarily of arm 42 and arm turning axle 43.Arm turning axle 43 is formed as cylindric, carries out rotating and is elevated.Arm turning axle 43 has arm 42 in bottom.Arm 42 has the handle part 41,41 that can hold cutter holder 60 respectively at both ends.Arm turning axle 43 is formed as parallel with Z-direction.Arm 42 with arm turning axle 43 for axle rotates.Cutter changing arm 40 has cutter changing motor 27 on top.Cutter changing arm 40 by cutter changing motor 27 rotary actuation and carry out rotating and be elevated.
Tool magazine 30 is formed as side-looking roughly ellipticity.Tool magazine 30 is for holding multiple cutter holder 60 being provided with cutter 6.Tool magazine 30 has conveying mechanism (not shown) in inner side.Conveying mechanism has multiple broach shells 31 that can hold multiple cutter 6 respectively.The maintenance of each broach shell 31 is provided with the state (accommodation state) of cutter holder 60 towards transverse direction of cutter 6.Tool magazine 30 has tool magazine motor 26 on top.By tool magazine motor 26 rotary actuation and the conveying mechanism carrying out operating carries multiple broach shell 31.
Tool magazine 30 has calibration mouth 32 in lower end side.In the position of calibration mouth 32, broach shell 31 can make cutter holder 60 turn to state of can changing (state downward) from accommodation state (state towards transverse direction).There is broach shell elevating mechanism (not shown) near calibration mouth 32.Broach shell elevating mechanism is driven by cylinder 28 (with reference to Fig. 4), broach shell 31 is rotated and becomes accommodation state and maybe can change state.
In the following order the cutter 6 be arranged on main shaft 9 is changed under the state that cutter changing arm 40 is positioned at ATC initial point (with reference to Fig. 7).Cutter changing arm 40 rotates, and the handle part 41 of tool magazine 30 side holds the cutter holder 60 can changing state of tool magazine 30 side, and the handle part 41 of main shaft 9 side holds the cutter holder 60 be arranged on main shaft 9.Then, cutter changing arm 40 declines, and carries out cutter and extracts action.Then, cutter changing arm 40 revolves turnback, exchanges the cutter holder 60 of main shaft 9 side and the cutter holder 60 of tool magazine 30 side.Then, cutter changing arm 40 rises, and the cutter holder 60 that the handle part 41 of main shaft 9 side holds is arranged on main shaft 9, and the cutter holder 60 that the handle part 41 of tool magazine 30 side holds is arranged on the broach shell 31 of tool magazine 30.Then, cutter changing arm 40 rotates predetermined angular, and the handle part 41 of main shaft 9 side discharges with the handle part 41 of tool magazine 30 side the cutter holder 60 held separately.Above, the one-period of the arm spinning movement undertaken by cutter changing arm 40 terminates.
Use Fig. 4 that the electrical structure of lathe 1 is described.The control device 70 controlling lathe 1 has CPU 71, ROM 72, RAM 73, Nonvolatile memory devices 76, input interface 74, output interface 75.The keyboard 81 of guidance panel 80 is connected with input interface 74.CRT89 is connected with output interface 75.CPU 71 executive control program (aftermentioned) and control lathe 1.
Output interface 75 is connected with Z axis motor 86, X-axis motor 87, Y-axis motor 88, Spindle Motor 8, tool magazine motor 26, cutter changing motor 27, cylinder 28.Each motor 86 ~ 88,8,26,27 has scrambler 86a ~ 88a for detecting the anglec of rotation, 8a, 26a, 27a.Each scrambler 86a ~ 88a, 8a, 26a, 27a are connected with input interface 74, to control device 70 input signal.Control device 70 controls according to this signal each speed to Z axis motor 86, X-axis motor 87, Y-axis motor 88, Spindle Motor 8, tool magazine motor 26, cutter changing motor 27.
Input interface 74 is connected with keyboard 81, arm sensor 82, Z axis origin sensor 83, broach shell rising sensor 84, broach shell decline sensor 85.Arm sensor 82 is for detecting the release of the one-period of the arm spinning movement of cutter changing arm 40.The action control of cutter changing arm 40 carries out based on this testing result.Z axis origin sensor 83 is for detecting the initial point (the cutter changing height and position of main tapping 7) of main tapping 7.The positioning control of main tapping 7 is carried out based on this testing result.Whether broach shell rising sensor 84 becomes accommodation state for detecting broach shell 31.Whether broach shell decline sensor 85 becomes can change state for detecting broach shell 31.The elevating control of broach shell elevating mechanism (not shown) carries out based on the testing result of broach shell rising sensor 84 with broach shell decline sensor 85.
Multiple broach shell 31 has the broach shell identification plate 78 with the movement of broach shell 31 one.Broach shell identification plate 78 is in order to identify that each broach shell 31 has pattern according to each broach shell 31 different transmittance sections (not shown) respectively.Tool magazine 30 has the identification sensor 79 for identifying each broach shell in multiple broach shell 31 respectively.Identification sensor 79 has the light-projecting component 79a and photo detector 79b that are oppositely disposed with each surface of broach shell identification plate 78.Identification sensor 79 is transported to the calibration mouth 32 of tool magazine 30 for detecting which broach shell 31.The positioning control of the cutter 6 of regulation is carried out based on this testing result.
RAM 73 is temporarily stored in the value etc. calculated in the implementation of control program.As shown in Figure 5, Nonvolatile memory devices 76 has form storage area 76a, job sequence storage area 76b etc.Form storage area 76a is for storing form 170.Job sequence storage area 76b inputs the various job sequences of registration for storing staff.ROM72 pre-stored execution main tapping 7 described later is to the control program of the mobile process (with reference to Fig. 8) of Z-direction movement.
As shown in Figure 6, form 170 stores the execution moment 173 of the instruction 171 of many groups M coding (auxiliary movement), the movement content 172 corresponding with this instruction 171 and this action.In the example of fig. 6, the movement content of command M 03 is that main shaft rotates forward, and performs this action at execution moment B.The movement content of command M 09 is that cooling pump quits work, and performs this action at execution moment A.The movement content of command M 436 is tool magazine rotational speeies 1, performs this action at execution moment C.When instruction is 2 BCD signals, movement content is that BCD signal exports, and performs this action at execution moment A.As shown in Figure 7, to perform moment A be main tapping 7 when arriving position (the R point) of cutter away from workpiece in the cutter changing position uphill process of Z axis.Perform moment B be when change start to decline from the cutter changing position of Z axis to R point after cutter when.The moment that to perform moment C be main tapping 7 position (R point) that starts processing work from cutter declines to the location of instruction of Z axis.
In form 170, the moment of the movement content performing each instruction can be set arbitrarily in advance.CPU71 read work personnel are input to the job sequence in the job sequence storage area 76b of Nonvolatile memory devices 76, analyze with reference to form 170 and perform job sequence.Job sequence is made up of multiple pieces of programs.
The example 1 of an example as block program is below described.
Example 1 " G100T1R50.Z0.M10M03M436; "
The G100 of above-mentioned example 1 is cutter changing instruction.T1 is the cutter numbering changed.R50 is that main tapping 7 declines and the value of the R point (Z=50) temporarily stopped when single step campaign.Z0 is by main tapping 7(Z axle) be positioned 0 instruction.When with reference to form 170, M10 is not stored directly, and is therefore 2 BCD signals.CPU71 exports BCD signal.When with reference to form 170, M03 represents that main shaft rotates forward, and performing the moment is perform moment B.M436 represents tool magazine rotational speed 1, and performing the moment is perform moment C.Therefore, in example 1, export BCD signal (M10) at execution moment A, performing rotating forward (M03) of moment B execution main shaft, perform tool magazine rotational speed 1(M436 at execution moment C).
Example 2 represents another block program.
Example 2 " G100T1R50.Z0.M10M03M08; "
For the instruction identical with above-mentioned example 1, the description thereof will be omitted.M08 represents that cooling pump operates, and performs this action at execution moment C.Therefore, in example 2, export BCD signal (M10) at execution moment A, performing rotating forward (M03) of moment B execution main shaft, carry out operate (M08) at execution moment C cooling pump.
With reference to Fig. 7, the mobile process of the main tapping 7 in cutter changing action to Z-direction movement is described.When receiving cutter changing instruction, main tapping 7 rises from the initial point Z=0 of Z-direction, arrives R point (Z=50) at execution moment A.Cutter 6 leaves from workpiece at execution moment A.When main tapping 7 rises until when performing moment A, cutter and workpiece and fixture is irrelevant disturbs.Main tapping 7 continues to rise from execution moment A further, and main tapping 7 rises to the ATC initial point (performing moment A1) as the cutter changing position can changing cutter.Utilize cutter changing mechanism 20 to change cutter from execution moment A1, complete at execution moment B cutter changing.Then, main tapping 7 declines and arrives R point at execution moment C, drops to the location of instruction on Z axis further.
Process flow diagram with reference to Fig. 8 illustrates that the arranged side by side of other process in the control of the cutter changing action undertaken by CPU71 performs process.Staff is by keyboard 81(reference Fig. 1) instruction execution job sequence.CPU71 reads and performs the job sequence of the job sequence storage area 76b (with reference to Fig. 5) being stored in Nonvolatile memory devices 76.
CPU71 reads and explains a block program (S1) of job sequence.CPU71 reads the content of each instruction and execution moment in S1 with reference to form 170, sort, be stored into RAM73 according to execution moment order to command content.
Whether CPU71 is that END instruction (M30) judges (S2) to the instruction of explained block program.When instruction is END instruction (M30) (S2: yes), CPU71 ends process.When instruction is not END instruction (M30) (S2: no), whether CPU71 is that cutter changing instruction judges (S3) to instruction.When instruction is cutter changing instruction (S3: yes), CPU71 starts cutter changing action (S4).When instruction is not cutter changing instruction (S3: no), CPU71 performs process (S8) according to block programmed instruction such as axle move or cutting instructions.The block program setting that CPU71 will explain returns S1 after being next block program, repeats process.
When performing the cutter changing action of S4, CPU71 performs Z axis rising process.Z axis rising process is main tapping 7 rises to cutter changing position (ATC initial point) via R point process from current location.Whether CPU71 performs moment A judge (S5) arriving.When main tapping 7 rises to R point in Z axis rises process, CPU71 is judged as arriving and performs moment A (S5: yes).When main tapping 7 does not rise to R point (S5: no), process turns back to the judgement process of S5.When main tapping 7 rises to R point, CPU71 to utilize in S1 block program reading process be stored in the content of the instruction of RAM73 whether have perform moment A perform instruction judge (S6).When having when performing the instruction that moment A performs (S6: yes), perform the content (S7) of the instruction performed at this execution moment A.When for above-mentioned example 1 and example 2, because the instruction performed at execution moment A is M10, therefore carry out the output of BCD signal.
At the end of instruction performs (S7), process turns back to the judgement process of S6.When performing all order fulfillments that moment A should perform (S6: no), CPU71 judges (S9) whether arriving the execution moment B that cutter changing terminates.Performing moment B is that main tapping 7 rises from R point and arrives ATC initial point (performing moment A1), and cutter changing mechanism 20 performs cutter changing, the moment that cutter changing terminates.When do not arrive perform moment B time (S9: no), process repeat S9 judgement process and standby to arrive execution moment B.When arrive perform moment B time (S9: yes), CPU71 to utilize in S1 block program reading process be stored in the content of the instruction of RAM73 whether have perform moment B perform instruction judge (S10).When having when performing the instruction that moment B performs (S10: yes), CPU71 performs the content (S11) of the instruction performed at this execution moment B.When for above-mentioned example 1 and example 2, because the instruction performed at execution moment B is M03, therefore carry out rotating forward of main shaft 9.
At the end of the instruction of S11 performs, process turns back to the judgement process of S10.When performing all order fulfillments that moment B should perform (S10: no), whether CPU71 performs moment C judge (S12) becoming.Performing moment C is that main tapping 7 drops to cutter and workpiece abuts against and carries out the moment of the R point of work pieces process.When do not arrive perform moment C time (S12: no), process repeat S12 judgement process and standby to arrive execution moment C.When arrive perform moment C time (S12: yes), CPU71 to utilize in S1 block program reading process be stored in the content of the instruction of RAM73 whether have perform moment C perform instruction judge (S13).When having when performing the instruction that moment C performs (S13: yes), CPU71 performs the content (S14) of the instruction performed at this execution moment C.When for above-mentioned example 1, because the instruction performed at execution moment C is M436, therefore carry out the rotation of tool magazine with tool magazine rotational speed 1.When for above-mentioned example 2, because the instruction performed at execution moment C is M08, therefore cooling pump operates.
At the end of the instruction of S14 performs, process turns back to the judgement process of S13.When performing all order fulfillments that moment C should perform (S13: no), whether CPU71 terminates to judge (S15) to cutter changing action.Whether this judgement all terminates to carry out based on the action be included in cutter changing instruction.When cutter changing release (S15: yes), process returns S1.At the end of cutter changing action not (S15: no), process repeats the judgement process of S15 and standby to cutter changing release.
In the above description, the CPU71 of control device 70 is equivalent to control part of the present invention.Spindle Motor 8 is equivalent to main shaft drives portion of the present invention.Z axis motor 86 is equivalent to main tapping moving part of the present invention.Form 170 is equivalent to storage part of the present invention.Perform moment A and be equivalent to the first execution moment of the present invention.Perform moment B and be equivalent to the second execution moment of the present invention.Perform the execution moment that moment C is equivalent to regulation of the present invention.ROM72 is relative to the storage medium of control program.
As mentioned above, when the lathe 1 of present embodiment indicates cutter changing instruction and the instruction that will perform side by side at the same time, these instructions can automatically be performed in the suitable moment, therefore, it is possible to shorten the cutter changing cycle.
Also various amendment can be implemented to numerically-controlled machine of the present invention and control method.Such as, also the execution moment 173 of form 170 can be set to and can be changed by the keyboard 81 operating guidance panel 80.The execution moment also can be set as the execution moment except execution moment A, B, C these three.It is such as the moment that main tapping 7 starts that point rises from the position of Z=0 to R.
Illustrate vertical machine 1 in the above-described embodiment, but the present invention also can be applied to horizontal machine tool.Cutter changing mechanism 20 also can be the mechanism of other modes.Also can be such as can carry out the capstan head mode removed and installed of cutter holder linkedly with the lifting action of main tapping 7.
Performing moment A is that main tapping 7 is when arriving R point during Z axis rises process.This moment can judge according to the position of Z axis moving direction and Z axis.This moment also can judge according to elapsed time after Z axis rising.
Performing moment B is the moment that cutter changing terminates.Cutter changing terminates to judge according to the detection of arm sensor 82.Cutter changing terminates also to judge according to elapsed time from cutter changing.
Performing moment C is when after cutter changing, main tapping arrives R point.This moment can judge according to the position of Z axis moving direction and Z axis.After this moment also can decline according to Z axis, elapsed time judges.
Claims (2)
1. a lathe (1), it comprises: main shaft drives portion (8), and its main shaft (9) for driving with cutter rotates; Main tapping moving part (86), it is for making main tapping (7) mobile, and this main tapping (7) makes above-mentioned main shaft (9) can support this main shaft (9) rotatably; Cutter changing device (20); Control part (71), it controls above-mentioned main shaft drives portion (8), above-mentioned main tapping moving part (86) and above-mentioned cutter changing device (20) according to the job sequence being stored in storage part (76), wherein,
The block program formed in multiple pieces of programs of above-mentioned job sequence at least has cutter changing instruction and auxiliary movement instruction,
Above-mentioned storage part comprises job sequence storage area (76b) and form storage area (76a), above-mentioned job sequence is stored at this job sequence storage area, the many groups of groups movement content of above-mentioned auxiliary movement instruction, this instruction and the execution moment of this action formed with corresponding to each other are stored at this form storage area
In the above-mentioned execution moment, there is the first execution moment (performing moment A), second to perform moment (performing moment B) and the 3rd execution moment (performing moment C),
First to perform the moment (perform moment A) be above-mentioned main tapping (7) when arrive in the uphill process of cutter changing position above-mentioned cutter (6) leave the position of workpiece when,
Second perform the moment (perform moment B) be when start after changing cutter from above-mentioned cutter changing position to the position carrying out processing decline when,
3rd to perform the moment (perform moment C) be the moment that position that above-mentioned main tapping (7) starts to carry out above-mentioned processing to above-mentioned workpiece from above-mentioned cutter (6) declines to the location of instruction,
Above-mentioned control part (71) performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction according to the above-mentioned execution moment.
2. a control method for lathe, this lathe comprises: main shaft drives portion, and it rotates for driving the main shaft with cutter, main tapping moving part, it moves for making main tapping, and this main tapping enables above-mentioned main shaft support this main shaft rotatably, cutter changing device, control part, it controls above-mentioned main shaft drives portion according to the job sequence being stored in storage part, above-mentioned main tapping moving part and above-mentioned cutter changing device, the block program formed in multiple pieces of programs of above-mentioned job sequence at least records cutter changing instruction and auxiliary movement instruction, above-mentioned storage part comprises job sequence storage area and form storage area, above-mentioned job sequence is stored at this job sequence storage area, many groups are stored by above-mentioned auxiliary movement instruction at this form storage area, the group that execution moment of the movement content of this instruction and this action forms with corresponding to each other,
In the above-mentioned execution moment, there is the first execution moment, second to perform moment and the 3rd execution moment,
First to perform the moment be above-mentioned main tapping when arrive in the uphill process of cutter changing position above-mentioned cutter leave the position of workpiece when,
Second perform the moment be when change to start after cutter from above-mentioned cutter changing position to the position carrying out processing decline when,
3rd to perform the moment be the moment that position that above-mentioned main tapping starts to carry out above-mentioned processing to above-mentioned workpiece from above-mentioned cutter declines to the location of instruction,
This control method is the control method utilizing the above-mentioned control part of lathe to carry out, wherein,
Computing machine as control part performs the above-mentioned auxiliary movement corresponding with above-mentioned instruction according to the above-mentioned execution moment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2010293643A JP5556656B2 (en) | 2010-12-28 | 2010-12-28 | Numerical control machine tool, control program, and storage medium |
| JP2010-293643 | 2010-12-28 |
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| CN102540970A CN102540970A (en) | 2012-07-04 |
| CN102540970B true CN102540970B (en) | 2015-09-23 |
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| CN105345566A (en) * | 2014-08-22 | 2016-02-24 | 圣杰国际股份有限公司 | Automatic tool changing mechanism of tool machine |
| JP6299527B2 (en) * | 2014-08-29 | 2018-03-28 | ブラザー工業株式会社 | Numerical control device and control method |
| CN104772654B (en) * | 2015-04-30 | 2017-03-08 | 中工科安科技有限公司 | A kind of detection of tool magazine cutter spacing of Digit Control Machine Tool, positioner and method |
| JP6215872B2 (en) | 2015-06-30 | 2017-10-18 | ファナック株式会社 | Numerical control device that notifies advance of execution of auxiliary function |
| JP6665645B2 (en) * | 2016-04-08 | 2020-03-13 | ブラザー工業株式会社 | Numerical control device and control method |
| CN109937386B (en) * | 2016-11-16 | 2022-04-26 | 株式会社牧野铣床制作所 | Machine tool system |
| JP6453923B2 (en) * | 2017-02-28 | 2019-01-16 | ファナック株式会社 | Numerical control device and machine tool system |
| CN109571136B (en) * | 2017-09-29 | 2021-12-31 | 兄弟工业株式会社 | Control device and machine tool |
| CN108994649A (en) * | 2018-07-31 | 2018-12-14 | 深圳市山龙智控有限公司 | Control method, device, computer equipment and the storage medium that cutter automatically switches |
| JP7036071B2 (en) * | 2019-03-18 | 2022-03-15 | ブラザー工業株式会社 | Numerical control device, numerical control program, and storage device that stores the numerical control program |
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| JP2012141762A (en) | 2012-07-26 |
| JP5556656B2 (en) | 2014-07-23 |
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