CN104175223A - Self-diagnosis method of machine tool and correction method of machine tool precision - Google Patents
Self-diagnosis method of machine tool and correction method of machine tool precision Download PDFInfo
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- CN104175223A CN104175223A CN201410205778.6A CN201410205778A CN104175223A CN 104175223 A CN104175223 A CN 104175223A CN 201410205778 A CN201410205778 A CN 201410205778A CN 104175223 A CN104175223 A CN 104175223A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Automatic Control Of Machine Tools (AREA)
- Numerical Control (AREA)
Abstract
The invention provides a self-diagnosis method of a machine tool and a correction method of machine tool precision; and obtains the self-diagnosis method for preventing faults, caused by deformation of the machine tool internally provided with a camera and wear of parts, and the correction method for precision reduction caused by deformation and loosening detected by the diagnosis. When the operation time of the machine tool or the number of machined workpieces reaches a registered interval, a rotation bench or a feeding bench and the camera arranged in the machine tool are moved to a measuring position, an image is obtained, the position of a detected object part is detected according to the image, and the position offset of the detected object part from an original position is detected. By repeating the operation for a plurality of times, a plurality of offsets are obtained, correction values of a work bench and the feeding bench in the direction of each control shaft are calculated, and set correction values are updated in a controller. When differences among the plurality of detected or calculated offsets or the differences among the correction values are over a threshold value, an alarm is sent out, and the machine tool is stopped.
Description
Technical field
The method that the reduction of the machining accuracy that the present invention relates to self-diagnosing method for preventing the fault being caused by the distortion of lathe or the wearing and tearing of parts etc. and the distortion detecting by this diagnosis or wearing and tearing are caused is revised, particularly possesses the said method of the lathe of camera in lathe inside.
Background technology
In lathe, for detecting the posture of the blank of being moved into lathe and monitoring the object of lathe action, practical application possess the lathe of the camera that blank and processing department are taken in lathe inside.
Fig. 7 and Fig. 8 are the figure that the example of the periphery processing unit (plant) of the glass plate that possesses the camera of moving into posture that detects blank is schematically shown.Fig. 7 is the example at the periphery processing unit (plant) of the large-scale glass substrate of the display floater use of TV imagescope, and Fig. 8 is the example at the periphery grinding attachment of the small-sized and medium-sized glass substrate of the display floater use of portable terminal device.
Device shown in Fig. 7 is to make to be fixed on glass substrate w on workbench 12 to move while the device that utilizes the grinding tool 3,3 that is configured in workbench 12 both sides to carry out the processing of dual-side e, the e of the Y-direction of workpiece along Y-direction in figure.In this periphery processing unit (plant), 2 cameras 5,5 that utilization is arranged at device read the angle or near mark m1, m2, the m3 in bight that are marked on workpiece w, detect the position of workpiece w on workbench 12 and the skew of angle (deviation), based on the side-play amount detecting, revise the position command of the anglec of rotation of workbench 12 and the incision direction of cutter 3 (directions X in figure).The grinding tool 3 of each side and camera 5 are equipped on the directions X feeding platform 21,21 of being located at each side, utilize the side-play amount of the directions X that camera 5 detects to become the correction value of the position of the directions X of grinding tool 3 like this.
Device shown in Fig. 8 is such device: by the rotation angle θ around vertical axle P and the cutter 3 amount of movement x approaching towards workbench center P along directions X in figure and that leave of the workbench 12 that is fixed with workpiece w are controlled to (hereinafter referred to as " contour machining mode ") explicitly, workpiece w is carried out to the periphery processing of shape freely.In this periphery processing unit (plant), by making worktable rotary or camera 5 being moved along the direction of the paper perpendicular to figure, thereby utilize 1 camera 5 carrying at the traverse feed platform 21 that cutter 3 is moved along directions X to detect the angle at multiple positions of the workpiece w being placed on workbench 12, detect thus the position of workpiece w on workbench 12 and the skew of angle, based on the side-play amount detecting, revise the position command of the anglec of rotation of workbench 12 and the X-direction of cutter 3.
And, in the metal working machine tools such as lathe, following apparatus has also been proposed: by equipment, arrange camera and the display of control panel show by this camera to image, thereby make the operator who tries to add man-hour etc. with manual operation easily confirm the action of lathe.
Lathe because being accompanied by the heating of running, there is thermal deformation in the variation of environment temperature.In lathe, because the difference of the local thermal deformation of lathe or the thermal deformation of workpiece and lathe produces mismachining tolerance.And lathe is because of long-term use, because the wearing and tearing of sliding part or the damage of bearing etc. produce loosening (ガ タ).This loosening machining accuracy that also makes lathe reduces, and becomes the reason that produces defective.When producing defective time, to trace it to its cause and carry out the mensuration of machine tool accuracy in order to chase after.And, for such generation of defective is prevented trouble before it happens, need to regularly carry out the mensuration of machine tool accuracy.
The positioning precision of knife rest isoline moving-member reduces and the rotation positioning precision of the rotary part such as main shaft and rotary table to reduce be the main cause that the machining accuracy of the lathe that causes such as component wear reduces.As shown in Figure 9, by carrying out the measurement of the precision of displacement part of straight line with amesdial or feeler 52 detection and location in the actual position of the displacement part of straight line 51 of assigned position, and as shown in figure 10, at rotary part 53, polygonal mirror 54 is installed, the projection light according to each reflecting surface 55 when autocollimator 56 device such as optical detecting such as grade and catoptrical deviation are measured the precision of the anglec of rotation of rotary part.
; for shifting axle and the rotating shaft of each parts of lathe; the required analyzer of precision of measuring them is arranged on to the position of regulation; according to parts should position and the measured value of the side-play amount of actual position obtain the correction value (corrected parameter) that the command value that sends for the drive source (servo motor etc.) of these parts of subtend revises and set at controller, maintain thus the machining accuracy of expectation.
Patent documentation 1: TOHKEMY 2013-035089 communique
If go out to continue to use lathe and produce defective under the state that reduces of the precision of lathe unidentified, can cause huge loss, therefore, set by results of regular determination machine tool accuracy that to realize maintaining of machining accuracy with the correction value that the precision of lathe reduces and thermal deformation is corresponding be extremely important.
But, if will prevent reliably the generation of defective, have to carry out the continually confirmation (mensuration) of machine tool accuracy needs to stop for a long time lathe and measures in the assay method of machine tool accuracy in the past, and also large for the homework burden of measuring.; in order to measure; need to stop lathe; and the multiple moving-members and the rotary part that possess for lathe; the analyzers such as sampling Detection instrument (pick tester) or autocollimator are installed on its each moving direction to be measured; except the analyzer of needs costliness, also need superb determination techniques and a large amount of activity durations.And between this test period, the processing operation of workpiece stops, therefore there is the financial burden such as productivity ratio also reduces and measure operator's the large such problem of homework burden.
Summary of the invention
Problem of the present invention is for to obtain following lathe: in the continuous processing of workpiece, can be on carrying out the moving-member of lathe of this processing and rotary part, particularly likely machining accuracy being produced to the moving-member of large impact and the positioning precision of rotary part is measured, and on one side as required the correction value of change of registration in controller continue processing continuously on one side, but also can predict the generation of the fault that the supporting bearing of these parts and the damage of drive system cause.
The invention provides the self-diagnosing method of lathe and the automatic setting method of correction value solves above-mentioned problem, wherein, lathe possesses the camera of the image of obtaining lathe inside, controller makes each drive unit action by the correction value of setting to the command value correction generating according to procedure, carry out thus the continuous processing of workpiece, the self-diagnosing method of described lathe is characterised in that, regularly take the variation of the same position of travelling carriage or turntable the side-play amount of the determining image lathe that basis obtains with described camera, the automatic setting method of described correction value is characterised in that, the correction value of the action command according to this diagnostic result to this travelling carriage or turntable is set or is upgraded.
Controling appliance is for OBD program and following member: camera is positioned to the align member that becomes the regulation of the travelling carriage of reference object or turntable position; Obtain the image of image and obtain member; According to the position probing member of obtaining image detection and specify the physical location at position; And to this position detecting and registration or be stored in the calculating member that the skew of the original position of controller is calculated, controller also possesses: the correction value that goes out the correction value in each Control Shaft direction of workbench and feeding platform according to the calculations of offset calculating is calculated member; And the correction value calculating is stored into the correction value setting element of the storage area of the regulation of controller.
In the time that duration of runs of lathe and workpiece add the processing action of number after reaching the OBD interval being registered in advance in controller and finish, call OBD program.OBD program utilize described align member by workbench or other turntables, feeding platform and camera movement to measuring position, utilize image to obtain member to obtain in this position the image of camera, utilize position probing member from this image, to detect detected object portion bit position, utilize calculations of offset member detect detected object position from originally should the skew of position.By repeatedly repeating these operations, obtain multiple side-play amounts.Then, calculate the correction value in each Control Shaft direction of workbench and feeding platform according to these side-play amounts, the correction value of setting is updated to the correction value newly calculating in controller.
In above-mentioned operation, in the time detecting or difference each other of multiple side-play amounts of calculating or correction value difference each other exceed the threshold value of registration in advance, give a warning, and finish in the case of necessary processing continuously and stop lathe.
According to self-diagnosing method of the present invention, do not need operator's management and operation completely, can detect that machine tool accuracy reduces the possibility of the generation of caused defective, therefore can prevent trouble before it happens the generation of defective in advance.And, by giving a warning, can prevent machine failure in the time the loosening of likely associated with machine failure lathe being detected and be out of shape in advance.
And, use the camera of being located at lathe inside, and the moment of diagnosing by program behavior and measurement action, the even judgement of measurement result, therefore do not need operator skilled, anyone can hold current machine tool accuracy.
And, do not need to prepare the expensive analyzer of the skew for measuring lathe, the camera using in measurement can be also used as positioning confirmation and the measuring camera of machining accuracy of workpiece, can not make lathe stop for a long time in order to measure operation, therefore can significantly reduce and measure required expense and the loss of machine tool running.
And, according to the automatic setting method of correction value of the present invention, except bringing into play the effect of above-mentioned self-diagnosing method, also there is following effect: the mistake such as mistake in computation and input error that can prevent correction value, can automatically change correction value and continue continuous operation, therefore can maintain high machining accuracy, can realize alleviating of the raising of the productivity ratio of being brought by the raising of machine tool running rate and operator's homework burden simultaneously.
Brief description of the drawings
Fig. 1 is the side view of periphery processing unit (plant).
Fig. 2 is the top view that the main utensil configuration of the device of Fig. 1 is shown.
Fig. 3 is the key diagram that the processing of contour machining mode is shown.
Fig. 4 is the figure that the example of the image of the camera of obtaining is shown.
Fig. 5 is the flow chart that continuous manufacturing procedure is shown.
Fig. 6 is the flow chart that the setting operation of OBD and correction value is shown.
Fig. 7 is the schematic stereogram that the example of the periphery processing unit (plant) of large glass plate is shown.
Fig. 8 is the schematic stereogram that the example of the periphery processing unit (plant) of small-sized and medium-sized glass plate is shown.
Fig. 9 is the schematic diagram that the conventional example of the position measurement of travelling carriage is shown.
Figure 10 is the schematic diagram that the conventional example of the anglec of rotation measurement of turntable is shown.
Label declaration
1: workpiece spindle;
3: grinding tool;
4: controller;
5: camera;
12: workbench (turntable);
15: Spindle Motor;
21: traverse feed platform (travelling carriage);
23: feed arrangement (traverse feed motor);
A, B: the bight of workbench;
A, b: carve the mark of being located at bight;
P: the center of workbench;
W: workpiece.
Detailed description of the invention
Below, taking the periphery processing unit (plant) of contour machining mode as example, embodiments of the present invention are described.Figure is the figure that an example of this periphery processing unit (plant) is shown, is the device proposing in patent documentation 1, and Fig. 1 is side view, and Fig. 2 is the top view that the utensil configuration of major part is shown.
In the drawings, label 1 is workpiece spindle.Workpiece spindle 1 is the rotating shaft of the hollow of vertical direction, is provided with workbench 12 in upper end, and processed workpiece (glass plate) w remains on the upper surface of workbench 12 with flat-hand position.Hollow hole by workpiece spindle 1 is supplied with negative pressure to the upper surface of workbench 12, and workpiece w is fixed on workbench 12 by the mode of vacuum suction in following surface.Be linked with Spindle Motor (servo motor) 15 in the lower end of workpiece spindle 1, this Spindle Motor 15 is connected with controller 4 via servo amplifier 41, according to the anglec of rotation of the instruction control workpiece spindle 1 of controller 4.
Above workpiece spindle 1, be provided with traverse feed platform 21.Traverse feed platform 21 is guided into and can freely move by the transverse guide of not shown horizontal direction, and is screwed together in the traverse feed leading screw 24 being rotarilyd actuate by traverse feed motor (servo motor) 23.Traverse feed motor 23 is connected with controller 4, and the shift position of traverse feed platform 21 is controlled by controller 4.
Be provided with length feed platform 25 at traverse feed platform 21.Length feed platform 25 can be arranged on the longitudinally guiding part of the vertical direction that is fixed on traverse feed platform 21 freely movably, and is screwed together in the length feed leading screw 27 being rotarilyd actuate by length feed motor 26.
The grinding tool axle 31 that is supported with vertical direction at length feed platform 25 axles, is provided with grinding tool 3 in the lower end of this grinding tool axle.The upper end of grinding tool axle 31 is connected with grinding tool CD-ROM drive motor 34 via cog belt 33.In the device of figure, grinding tool axle is 1, but also uses the devices that are provided with many grinding tool axles and diameter or variform multiple grinding tool can be installed more.
The axle center of the axle center of workpiece spindle 1 and grinding tool axle 31 is positioned on same vertical the s parallel with the moving direction of traverse feed platform 21.As shown in Figure 3, in contour machining mode, by utilizing controller 4 that the rotation angle θ of the amount of movement of traverse feed platform 21 (being the amount of movement of grinding tool 3) x and workpiece spindle 1 is controlled explicitly, thus the processing of the periphery of the flat shape of expecting.
Be provided with the camera 5 for obtaining the image of being moved into the workpiece on workbench 12 in the fixed position of traverse feed platform 21.As shown in Figure 2, this camera 5 is located at its optical axis by the position of described vertical s.
Carve respectively and be provided with mark a, b at the upper surface of the bight of workbench 12 A, B.Due to known this mark a, the position of b on workbench 12, so the anglec of rotation from the rotation of initial point angle that can obtain the workpiece spindle 1 in the time workbench 12 being rotated make mark a, b be positioned at described vertical s by calculating and the optical axis that makes camera 5 and the shift position that is positioned at the traverse feed platform of vertical the mark s when consistent.
Therefore, utilize controller 4 that traverse feed motor 23 and Spindle Motor 15 are rotated, mark a is positioned to the position of the optical axis of camera 5, and obtains the image of bight A with camera 5.Fig. 4 is the figure that the example of the obtained image of camera is shown.Can go out according to the image detection obtaining the position from picture centre of mark a.Next, by workbench 12 Rotate 180 degree, mobile traverse feed platform 21 if required, is positioned mark b the position of the optical axis of camera 5, and obtains the image of bight B with camera.
By measuring mark a, b on the image of obtaining the like this skew from camera optical axis, can measure the error (from the deviation of initial position) of the anglec of rotation of workbench 12 and the position error of traverse feed platform 21.And, by rotating the other way around and travelling table 12 and traverse feed platform 21, make mark a, b unanimously carry out same measurement with the optical axis of camera 5, thereby the error of the error when measuring the other way around during with initial measurement is poor, can measures and wait the loosening of the lathe that produces because of wearing and tearing.
In addition, even do not carve be provided with mark a, b in the situation that at workbench 12, also can go out according to the breakpoint detection of the line of the periphery of the workbench on image the angle of workbench 12.In this case, utilize using optical axis Co be positioned at workbench 12 angle A, B as object should the camera 5 of position, obtain the image of the bight A of workbench, next workbench 12 Rotate 180 degree are obtained to the image of bight B.2 vertical line segments of image as work edge of table reflect on the image of obtaining, the coordinate of the intersection point that therefore can obtain these 2 line segments on image.
The position on the summit by the mark a, the b that obtain more in the above described manner or angle A, B, can carry out the OBD of conditions of machine tool of following content and the correcting process based on this measurement result.
(1) in the time bringing into use lathe and afterwards,, according to being registered in advance the machine tool running time of controller or according to processing number, the X to workbench and the departure of Y-direction compare, confirm the situation of thermal migration.And, according to departure, automatically set the correction value of the deviation for revising thermal migration at controller.
(2) under the state of stop table and traverse feed platform, same position is taken repeatedly, and the position on the summit of mark a, the b in these images or angle A, B relatively, can be confirmed thus the state of machine vibration.In the time that the fluctuation of the position comparing is greater than in advance the threshold value of registration, thinks and therefore give a warning the play increase that for example produces in the drive system of traverse feed platform etc. and remind operating personnel to note.
(3) workbench resetting is taken to same position in identical angle, the relatively position on the summit of mark a, the b in these images or angle A, B, can detect thus the drive system such as stage support system and Spindle Motor such as main shaft bearing abnormal of supporting table, and give a warning being judged to be when abnormal.
Next with reference to Fig. 5 and Fig. 6, OBD of the present invention in said apparatus and the modification method of machine tool accuracy are described.First, starting continuous first being processed, the timer that is carried out to timing the duration of runs is set at controller 4, and presets the permissible value of implementing the time interval of OBD and loosening (play) of permission.
In Fig. 5 that continuous manufacturing procedure is shown, starting after processing, controller 4 is waited for from the workpiece of carry-in/carry-away device and is moved into end signal.After workpiece is moved into, detect the position deviation of being moved into the workpiece w on workbench 12 with the operation described in patent documentation 1 for example, calculate the correction value of the position deviation based on this workpiece according to this position deviation detecting for each workpiece, and set in controller.Then, carry out the processing of 1 workpiece on workbench, after process finishing, end signal is delivered to carry-in/carry-away device and waited for workpiece w taking out of from workbench 12.After workpiece is taken out of, carry out OBD program illustrated in fig. 6, after controlling if recover, have next workpiece to get back at first and wait for moving into of next workpiece.If do not have next workpiece to finish continuous manufacturing procedure.
Fig. 6 is the operation of OBD program.In this operation, comprise the correction operation of machine tool accuracy.Starting to carry out after this operation, first, judge and utilize whether reach the time interval (step 61) of carrying out OBD duration of runs of the timer timing duration of runs of being located at controller 4, if do not reached, finish immediately and turn back to continuous manufacturing procedure.In the case of the time interval that reaches OBD, make workbench 12 rotate in advance the angle of registration, and move to the position of registration in advance and the 1st mark a is positioned on the optical axis of camera 5 (step 62) laterally supplying with platform 21.Then, obtain the image (step 63) of camera 5, according to the image detection mark a obtaining, detect the skew (step 64) from its original position (optical axis center).Next worktable rotary 180 is spent, and carry out certification mark b by obtaining the image of camera, should be in the skew of position (step 65～68) from it to detect.Can according to the calculations of offset of these 2 mark a, b go out the skew of the anglec of rotation of workbench and workbench center and traverse feed platform 21 directions X (direction of feed of traverse feed platform) and with the orthogonal Y-direction of directions X on skew, but because the skew of Y-direction is little on the impact of machining accuracy, so obtain the 1st correction value of the position skew for revising lathe of work level angle and traverse feed platform and store (step 69).
Next, travelling table 12 and traverse feed platform 21 obtain the image of mark a and b by same operation the other way around, with aforementioned the 2nd correction value (step 70～77) that similarly calculates.And, when the 1st and the difference of the 2nd correction value while being greater than the permissible value of play of registration, by being set to correction value, controller is difficult to be eliminated, therefore give a warning to shut down.If the 1st and the difference of the 2nd correction value below permissible value, the mean value of their correction value is set as to current correction value (step 78), the timer and the return to continuous manufacturing procedure duration of runs of resetting.
Device shown in above-described embodiment and operation are to carry out the processing of workpiece by the only movement on directions X of the rotation of workbench and cutter, but in the device of processing along X, Y-direction moving cutting tool, take the image of obtaining and detect the skew in X, Y two directions being set in a position on workbench according to utilizing camera, detect thus the variation of the relative position relation of cutter that rheological parameters' change with time and thermal deviation cause and workbench, automatically will be set to controller for the correction value of revising these skews.
And, in step 63 and 66 in above-mentioned OBD operation, under the state that lathe is stopped, repeatedly taking same position, detect the skew each other of these images, can carry out thus the confirmation of machine vibration, when the position of the image of the object in the image that this is repeatedly taken exists while exceeding the fluctuation of the permissible value of having set, can send certain abnormal warning occurs.
And, repeat step 62～67 in above-mentioned OBD operation and obtain multiple image, can confirm the fluctuation of the position of this image object each other.In the time that this fluctuation is large, think and for example occur abnormal in drive system, the bearing of axle supporting spindle or the drive system of traverse feed platform 21 of the main shaft that comprises Spindle Motor 15, even therefore under these circumstances, also can, in the time that the amount of this fluctuation exceedes predefined permissible value, give a warning to urge the inspection of lathe.
The lathe of explanation is the periphery processing unit (plant) of the glass plate based on contour machining mode in the above-described embodiments, but also can adopt method of the present invention in the such lathe of the machining center that the device shown in mobile Fig. 7 and cutter are processed on two dimensional surface.Particularly camera being mounted in along in the lathe of the feeding platform of the incision direction feeding of cutter, the relative position relation of camera and cutter does not change, can be using the side-play amount detecting directly as the party's correction value upwards, therefore method of the present invention is effective especially.
As mentioned above, the method according to this invention, there is following effect: needn't append detector or measuring appliance are set at existing device, only by registering OBD program and various permissible value to controller, and call OBD program in processing continuously in good time, just can set the correction value that thermal migration with the diagnosis of machine tool accuracy and the lathe in each moment etc. is corresponding, and in OBD program, obtain multiple image and they are compared mutually, can find thus the abnormal and fault of lathe, not only can prevent the generation of defective, stage is found wearing and tearing and the fault of lathe in the early stage.
Claims (4)
1. the self-diagnosing method of a lathe, it is the self-diagnosing method of the machine tool accuracy of lathe, described lathe possesses the camera of the image of obtaining lathe inside, controller makes each drive unit action of travelling carriage or the turntable of use in processing to the command value correction generating according to procedure by the correction value of setting, carry out thus the continuous processing of workpiece
The self-diagnosing method of described lathe is characterised in that,
The variation of regularly taking the same position of described travelling carriage or turntable the side-play amount of the image detection lathe that basis obtains with described camera gives a warning when exceed the threshold value of setting in controller time.
2. the modification method of the machine tool accuracy of a lathe, it is characterized in that, the side-play amount detecting in the method for utilizing described in claim 1 does not exceed under the condition of described threshold value, and the correction value of the action command according to the variation of this side-play amount to described travelling carriage or turntable is set or upgraded.
3. the self-diagnosing method of lathe according to claim 1, is characterized in that,
Repeatedly take the same position of described travelling carriage or turntable and detect respectively the side-play amount of lathe according to the multiple image obtained with described camera, in the time that the fluctuation of the multiple side-play amounts that detect exceedes the threshold value of setting in controller, give a warning.
4. the self-diagnosing method of lathe according to claim 3, is characterized in that,
Under the state that described travelling carriage or turntable are stopped, obtaining described multiple image.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-108929 | 2013-05-23 | ||
| JP2013108929A JP6174906B2 (en) | 2013-05-23 | 2013-05-23 | Self-diagnosis of machine and correction method of machine accuracy |
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| Publication Number | Publication Date |
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| CN104175223A true CN104175223A (en) | 2014-12-03 |
| CN104175223B CN104175223B (en) | 2018-09-07 |
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| CN201410205778.6A Active CN104175223B (en) | 2013-05-23 | 2014-05-15 | The modification method of the self-diagnosing method of lathe and the machine tool accuracy of lathe |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6174906B2 (en) |
| KR (1) | KR102166641B1 (en) |
| CN (1) | CN104175223B (en) |
| TW (1) | TWI611870B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014226754A (en) | 2014-12-08 |
| TW201444648A (en) | 2014-12-01 |
| CN104175223B (en) | 2018-09-07 |
| JP6174906B2 (en) | 2017-08-02 |
| TWI611870B (en) | 2018-01-21 |
| KR102166641B1 (en) | 2020-10-16 |
| KR20140138063A (en) | 2014-12-03 |
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