CN117415620A - Multi-shaft turning and milling compound numerical control machine tool - Google Patents
Multi-shaft turning and milling compound numerical control machine tool Download PDFInfo
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- CN117415620A CN117415620A CN202311749826.3A CN202311749826A CN117415620A CN 117415620 A CN117415620 A CN 117415620A CN 202311749826 A CN202311749826 A CN 202311749826A CN 117415620 A CN117415620 A CN 117415620A
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- 238000003801 milling Methods 0.000 title claims abstract description 81
- 238000007514 turning Methods 0.000 title claims abstract description 27
- 150000001875 compounds Chemical class 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 153
- 238000004458 analytical method Methods 0.000 claims abstract description 132
- 238000012545 processing Methods 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000013598 vector Substances 0.000 claims description 36
- 238000012937 correction Methods 0.000 claims description 30
- 238000002360 preparation method Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 239000011295 pitch Substances 0.000 description 70
- 238000003754 machining Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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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
- B23Q15/08—Control or regulation of cutting velocity
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Numerical Control (AREA)
Abstract
The invention relates to the technical field of turning and milling compound machine tools, in particular to a multi-shaft turning and milling compound numerical control machine tool, which comprises a bracket, a primary rotating shaft, a secondary rotating shaft, a detection mechanism, an analysis mechanism and an alarm mechanism, wherein the detection mechanism is used for judging whether a processed workpiece meets a preset standard according to the calculated average value of the tooth spacing of the surface of the workpiece, selecting any tooth of the workpiece as an origin, drawing a tooth pitch-tooth number graph aiming at the workpiece, and determining a processing mode of the processed workpiece which does not meet the preset standard according to the average value of the transverse axis distance of each wave crest in the calculated tooth pitch-tooth number graph.
Description
Technical Field
The invention relates to the technical field of turning and milling compound machine tools, in particular to a multi-shaft turning and milling compound numerical control machine tool.
Background
In order to improve the processing efficiency and processing precision of workpieces, technicians have sought more efficient and precise processing methods. The advent of the turn-milling composite machining equipment provides an effective solution for improving the machining precision and efficiency of aerospace parts. The turning and milling is an advanced cutting and machining method which utilizes the combined motion of milling cutter rotation and workpiece rotation to realize the cutting and machining of the workpiece, so that the workpiece can meet the use requirements in various aspects such as shape precision, position precision, machined surface integrity and the like. The turning and milling combined machining is not to simply combine two machining means of turning and milling on one machine tool, but to finish machining of various surfaces by using turning and milling combined movement, and is a new cutting theory and cutting technology generated under the condition that the numerical control technology is greatly developed at present. Compared with the conventional numerical control machining process, the turning and milling combined machining has the following outstanding advantages: (1) shortening the manufacturing process chain of the product and improving the production efficiency. And (2) reducing the clamping times and improving the machining precision.
CN108393696a discloses a multi-axis turning and milling compound numerical control machine tool, which comprises a base, wherein an oblique lathe bed is arranged on the base, a first servo electric spindle and a second servo electric spindle which are respectively used for clamping a workpiece are oppositely arranged on the oblique lathe bed, the first servo electric spindle is fixed, a first driving device which can drive the second servo electric spindle to be close to or far away from the first servo electric spindle is arranged on the oblique lathe bed, and a power tool turret which can move in X, Y, Z three axes and can perform turning and milling on the workpiece on the two servo electric spindles and a second driving device which can drive the power tool turret to move in three axes are respectively arranged on the front side and the rear side of the two servo electric spindles on the oblique lathe bed; it follows that the prior art has the following problems: detection of the finished workpiece is not considered, so that machining parameters of the workpiece are adjusted according to detection results, and production efficiency of the workpiece is affected.
Disclosure of Invention
Therefore, the invention provides a multi-axis turning and milling compound numerical control machine tool, which is used for solving the problem that the production efficiency of a workpiece is affected because detection on a finished workpiece is not considered in the prior art so as to adjust the processing parameters of the workpiece according to the detection result.
In order to achieve the above object, the present invention provides a multi-axis turning and milling compound numerical control machine tool, comprising:
a bracket;
the primary rotating shaft is arranged on the bracket and comprises a plurality of clamps used for clamping the workpiece and a driving motor for controlling the rotation of the workpiece;
the secondary rotating shaft is arranged at one side of the primary rotating shaft and comprises a milling cutter used for processing a workpiece and a secondary motor used for controlling the milling cutter to rotate;
a detection mechanism provided on the bracket and including an image detector for acquiring image information of the workpiece;
the analysis mechanism is respectively connected with the primary rotating shaft, the secondary rotating shaft and the corresponding parts of the detection mechanism, and is used for judging whether the processed workpiece meets the preset standard according to the calculated average value of the tooth distances on the surface of the workpiece, selecting any tooth of the workpiece as an origin, and drawing a tooth pitch-tooth number graph aiming at the workpiece so as to determine the processing mode aiming at the processed workpiece, which does not meet the preset standard, according to the calculated average value of the horizontal axis distance of each wave crest in the tooth pitch-tooth number graph;
and the alarm mechanism is connected with the analysis mechanism and used for sending out corresponding alarm information according to the judgment result of the analysis mechanism.
Further, the analysis mechanism calculates the average value of the tooth distances on the surface of the workpiece according to the image information of the workpiece obtained by the image detector under the condition that the processing of the workpiece is completed, and marks the average value as the average value of the tooth distances, and the analysis mechanism determines whether the processed workpiece meets the workpiece judging mode of the preset standard according to the obtained average value of the tooth distances, wherein:
the first workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotating speed of the driving motor is reduced to a corresponding value according to the difference value between the first preset pitch average value and the pitch average value; the first workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a first preset average value of the tooth pitch;
the second workpiece judging mode is that the analysis mechanism judges that the processed workpiece meets the preset standard, and controls the first rotating shaft to maintain the current operation parameters; the second workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a second preset average value of the tooth pitch and larger than the first preset average value of the tooth pitch;
the third workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, any tooth of the workpiece is selected as an original point according to the acquired image information, a tooth pitch-tooth number graph aiming at the workpiece is drawn, and the analysis mechanism determines a processing mode aiming at the processed workpiece which does not meet the preset standard according to a distance average value of the horizontal axis distances of all wave crests in the calculated tooth pitch-tooth number graph; the third workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a third preset average value of the tooth pitch and larger than the second preset average value of the tooth pitch;
The fourth workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotation speed of the driving motor is increased to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of the second preset tooth pitch; the fourth workpiece judging mode meets the condition that the average value of the tooth pitch is larger than the third preset average value of the tooth pitch; the first preset pitch average is less than the second preset pitch average and less than the third preset pitch average.
Further, the analysis mechanism selects any tooth of the workpiece as an origin according to the acquired image information in the third workpiece judging mode, so as to draw a tooth pitch-tooth number graph for the workpiece, calculates an average value of the horizontal axis distances of each peak in the tooth pitch-tooth number graph, records the average value as a distance average value, and determines a first-stage processing mode for the processed workpiece which does not meet a preset standard according to the obtained distance average value, wherein:
the first one-step processing mode is a processing mode that the analysis mechanism overlaps the acquired image information of the workpiece with the preset workpiece image information to acquire the distance between the circle center of the workpiece in the overlapped image and the circle center of the preset workpiece image information, and marks the distance as circle center deviation, and the analysis mechanism determines that the processed workpiece does not meet the preset standard according to the obtained circle center deviation; the first one-level processing mode meets the condition that the distance average value is larger than a preset distance average value;
The second-stage processing mode is that the analysis mechanism judges that the rotating speed of the driving motor is increased to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of a second preset tooth pitch; the second-stage processing mode meets the condition that the distance average value is smaller than or equal to the preset distance average value.
Further, the analysis mechanism overlaps the acquired image information of the workpiece with the preset workpiece image information in the first primary processing mode, acquires the distance between the circle center of the workpiece in the overlapped image and the circle center of the preset workpiece image information, marks the distance as circle center deviation, and determines a secondary processing mode that the processed workpiece does not meet the preset standard according to the obtained circle center deviation, wherein:
the first secondary processing mode is that the analysis mechanism adjusts the feed speed of each milling cutter to a corresponding value according to the difference value between a preset distance average value and a distance average value; the first secondary treatment mode meets the condition that the circle center deviation is smaller than or equal to a preset circle center deviation;
the second-stage processing mode is that the analysis mechanism maps the image of the workpiece into the plane to which each clamp belongs to obtain vectors taking the center point of each clamp as a starting point and the edge of the workpiece farthest from the starting point as an end point, and the analysis mechanism adjusts the clamping force of each clamp to a corresponding value according to the obtained vectors; the second secondary treatment mode meets the condition that the circle center deviation is larger than the preset circle center deviation.
Further, the analysis mechanism maps the image of the workpiece into the plane to which each clamp belongs under the second stage processing mode to obtain a vector taking the center point of each clamp as a starting point and the edge of the workpiece farthest from the starting point as an end point, and the analysis mechanism determines an adjusting mode of the clamping force of the two clamps farthest from the end point according to the length of the vector, wherein:
the first clamping force adjusting mode is that the analysis mechanism uses a first preset clamping force adjusting coefficient to adjust the clamping force of two clamps farthest from the end point to corresponding values; the first clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a first preset length;
the second clamping force adjusting mode is that the analysis mechanism uses a second preset clamping force adjusting coefficient to adjust the clamping force of the two clamps farthest from the end point to corresponding values; the second clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a second preset length and larger than the first preset length, and the first preset length is smaller than the second preset length;
the third clamping force adjusting mode is that the analysis mechanism uses a third preset clamping force adjusting coefficient to adjust the clamping force of the two clamps farthest from the end point to corresponding values; the third clamping force adjustment mode satisfies that the length of the vector is greater than the second preset length.
Further, under the condition that adjustment of clamping forces of two clamps is completed, the analysis mechanism draws a connecting line of the two clamps farthest from the end point so as to obtain an included angle between the connecting line and a vector, and the analysis mechanism sequentially determines a correction mode of the clamping forces of the clamps according to the included angle between the connecting line and the vector by using a single clamp, wherein:
the first correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a first preset correction coefficient; the first correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is smaller than or equal to a first preset included angle;
the second correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a second preset correction coefficient; the second correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is smaller than or equal to a second preset included angle and larger than the first preset included angle, and the first preset included angle is smaller than the second preset included angle;
the third correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a third preset correction coefficient; the third correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is larger than the second preset included angle.
Further, the analyzing mechanism calculates a difference between a first preset pitch average value and a pitch average value in the first workpiece judging mode, marks the difference as a pitch difference, and determines a speed adjusting mode for the rotation speed of the driving motor according to the obtained pitch difference, wherein the speed adjusting mode comprises the following steps:
the first speed adjusting mode is that the analysis mechanism uses a first preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the first speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a first preset tooth pitch difference value;
the second speed adjusting mode is that the analysis mechanism uses a second preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the second speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a second preset tooth pitch difference value and larger than the first preset tooth pitch difference value, and the first preset tooth pitch difference value is smaller than the second preset tooth pitch difference value;
the third speed adjusting mode is that the analysis mechanism uses a third preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the third speed adjustment mode satisfies that the pitch difference is greater than the second preset pitch difference.
Further, the analysis mechanism determines a drive adjustment mode for the rotational speed of the drive motor based on the mean difference value, wherein:
the first driving adjustment mode is that the analysis mechanism uses a first preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the first driving adjustment mode meets the condition that the mean value difference value is smaller than or equal to a first preset mean value difference value;
the second driving adjustment mode is that the analysis mechanism uses a second preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the second driving adjustment mode meets the condition that the mean value difference is smaller than or equal to a second preset mean value difference and larger than the first preset mean value difference, and the first preset mean value difference is smaller than the second preset mean value difference;
the third driving adjustment mode is that the analysis mechanism uses a third preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the third driving adjustment mode meets the condition that the mean value difference is larger than the second preset mean value difference;
the mean value difference is a difference between the pitch average value and the second preset pitch average value.
Further, the analysis means determines a feed adjustment manner of the feed speed for each milling cutter according to a speed difference between the adjusted rotational speed and the rotational speed before adjustment on the condition that the adjustment of the rotational speed of the driving motor is completed, wherein:
The first feeding adjustment mode is that the analysis mechanism uses a first preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the first feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a first preset speed difference value;
the second feeding adjustment mode is that the analysis mechanism uses a second preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the second feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a second preset speed difference value and larger than the first preset speed difference value, and the first preset speed difference value is smaller than the second preset speed difference value;
the third feeding adjustment mode is that the analysis mechanism uses a third preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the third feeding adjustment mode meets the condition that the speed difference value is larger than the second preset speed difference value.
Further, the analysis mechanism determines an adjustment mode of the feed speed of each milling cutter according to the calculated difference between the preset distance average value and the distance average value in the first secondary processing mode, wherein:
the first adjusting mode is that the analyzing mechanism uses a first preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the first adjusting mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a first preset difference value;
The second adjusting mode is that the analysis mechanism uses a second preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the second adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a second preset difference value and larger than the first preset difference value, and the first preset difference value is smaller than the second preset difference value;
the third adjusting mode is that the analysis mechanism uses a third preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the third adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is larger than a second preset difference value;
and under the condition that the analysis mechanism finishes the adjustment of the feed speed of each milling cutter in the first-stage processing mode and finishes the preparation of a new workpiece by using the adjusted operation parameters, if the analysis mechanism processes the workpiece according to the new workpiece by using the first-stage processing mode, the analysis mechanism controls the alarm mechanism to send out alarm information for abnormal milling cutters.
Compared with the prior art, the method has the advantages that the image information of the workpiece is obtained, whether the workpiece is qualified or not is judged according to the actual condition of the gear of the workpiece, whether the machining of the workpiece meets the preset standard or not is determined, and when the distance is too small, the rotation speed of the driving motor is reduced, so that the preparation precision of the subsequent workpiece is ensured, and the preparation efficiency of the workpiece is further effectively improved.
Further, when the distance between each tooth of the workpiece is larger, whether each gear with large distance is dispersed is judged according to the average value of the distance between the transverse axes of each wave crest in the tooth distance-tooth number graph, and when the average value of the distance is too small, each gear with large distance is judged to be dispersed, so that the processed workpiece is judged to be not in accordance with the preset standard, and the reason that the rotating speed of the driving motor is too slow leads to the fact that the tooth distance of the workpiece is too large is that the rotating speed of the driving motor is adjusted to be high, so that the preparation precision of the subsequent workpiece is ensured, and the preparation efficiency of the workpiece is further effectively improved.
Further, when the average distance value is too large, gears with large distances are concentrated, so that the circle center deviation is obtained to judge whether the workpiece is fixed and inclined due to the fact that clamping forces of the clamps are not coordinated, the reason that the processed workpiece does not meet the preset standard is accurately obtained, specific adjusting measures are determined, production quality of the workpiece is effectively improved, and meanwhile preparation efficiency of the workpiece is effectively improved.
Further, when the circle center deviation is too large, the fact that the clamping force of each clamp is uncoordinated, so that the workpiece is fixed and inclined is judged, and the clamping force of each clamp is adjusted, so that stable machining of the workpiece is ensured, and further the preparation efficiency of the workpiece is effectively improved. When the circle center deviation is smaller, it is judged that the machining of the milling cutter fails to reach the preset standard, and the lack of tooth gaps which cannot be sufficiently polished exists, so that the feed speed of the milling cutter is reduced, the sufficient polishing of the milling cutter is ensured, and the service life of the milling cutter is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a multi-axis turning and milling composite numerical control machine tool according to an embodiment of the present invention;
FIG. 2 is a flowchart of a work piece determination mode in which an analysis mechanism determines whether a processed work piece meets a preset standard according to a calculated average value of tooth pitches;
FIG. 3 is a flow chart of a first-stage processing mode of determining that a processed workpiece does not meet a preset standard according to a calculated distance average value by an analysis mechanism according to an embodiment of the invention;
FIG. 4 is a flow chart of a secondary processing mode in which the analysis mechanism determines that the processed workpiece does not meet the preset standard according to the calculated center deviation;
in the figure: a bracket 1; a clamp 2; a drive motor 3; a milling cutter 4; a secondary motor 5; an image detector 6.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, which are respectively a schematic structural diagram of a multi-axis turning and milling composite numerical control machine tool according to an embodiment of the present invention, a work piece judging mode flow chart in which an analysis mechanism determines whether a processed work piece meets a preset standard according to a calculated pitch average value, a primary processing mode flow chart in which the analysis mechanism determines that the processed work piece does not meet the preset standard according to a calculated distance average value, and a secondary processing mode flow chart in which the analysis mechanism determines that the processed work piece does not meet the preset standard according to a calculated center deviation; the embodiment of the invention provides a multi-shaft turning and milling compound numerical control machine tool, which comprises:
A bracket 1;
the primary rotating shaft is arranged on the bracket 1 and comprises a plurality of clamps 2 used for clamping a workpiece and a driving motor 3 used for controlling the rotation of the workpiece;
a secondary rotating shaft, which is arranged at one side of the primary rotating shaft and comprises a milling cutter 4 for processing a workpiece and a secondary motor 5 for controlling the milling cutter 4 to rotate;
a lateral slide (not shown) connected to the milling cutter for limiting the movement path of the milling cutter; a mobile motor (not shown in the figure) for controlling the milling cutter to move along a preset track is arranged on one side of the transverse sliding rail;
a detection mechanism provided on the holder 1 and including an image detector 6 for acquiring image information of the workpiece;
an analysis mechanism (not shown in the figure) which is respectively connected with the corresponding parts of the primary rotating shaft, the secondary rotating shaft and the detection mechanism, and is used for judging whether the processed workpiece meets the preset standard according to the calculated average value of the tooth distances of the surface of the workpiece, selecting any tooth of the workpiece as an origin, and drawing a tooth distance-tooth number graph aiming at the workpiece so as to determine the processing mode aiming at the processed workpiece and not meeting the preset standard according to the average value of the horizontal axis distance of each wave crest in the calculated tooth distance-tooth number graph;
And the alarm mechanism (not shown in the figure) is connected with the analysis mechanism and used for sending out corresponding alarm information according to the judging result of the analysis mechanism.
Specifically, the analysis mechanism calculates the average value of the tooth distances on the surface of the workpiece according to the image information of the workpiece obtained by the image detector 6 under the condition that the processing of the workpiece is completed, and marks the average value as the average value of the tooth distances, and the analysis mechanism determines whether the processed workpiece meets the workpiece judging mode of the preset standard according to the obtained average value of the tooth distances, wherein:
the first workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotating speed of the driving motor 3 is reduced to a corresponding value according to the difference value between the first preset pitch average value and the pitch average value; the first workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a first preset average value of the tooth pitch;
the second workpiece judging mode is that the analysis mechanism judges that the processed workpiece meets the preset standard, and controls the first rotating shaft to maintain the current operation parameters; the second workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a second preset average value of the tooth pitch and larger than the first preset average value of the tooth pitch;
The third workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, any tooth of the workpiece is selected as an original point according to the acquired image information, a tooth pitch-tooth number graph aiming at the workpiece is drawn, and the analysis mechanism determines a processing mode aiming at the processed workpiece which does not meet the preset standard according to a distance average value of the horizontal axis distances of all wave crests in the calculated tooth pitch-tooth number graph; the third workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a third preset average value of the tooth pitch and larger than the second preset average value of the tooth pitch;
the fourth workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotation speed of the driving motor 3 is increased to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of the second preset tooth pitch; the fourth workpiece judging mode meets the condition that the average value of the tooth pitch is larger than the third preset average value of the tooth pitch; the first preset pitch average is less than the second preset pitch average and less than the third preset pitch average.
Specifically, the analysis mechanism selects any tooth of the workpiece as an origin according to the acquired image information in the third workpiece judging mode, so as to draw a tooth pitch-tooth number graph for the workpiece, calculate an average value of the horizontal axis distances of each wave crest in the tooth pitch-tooth number graph, record the average value as a distance average value, and determine a first-stage processing mode for the processed workpiece which does not meet a preset standard according to the obtained distance average value, wherein:
The first one-step processing mode is a processing mode that the analysis mechanism overlaps the acquired image information of the workpiece with the preset workpiece image information to acquire the distance between the circle center of the workpiece in the overlapped image and the circle center of the preset workpiece image information, and marks the distance as circle center deviation, and the analysis mechanism determines that the processed workpiece does not meet the preset standard according to the obtained circle center deviation; the first one-level processing mode meets the condition that the distance average value is larger than a preset distance average value;
the second-stage processing mode is that the analysis mechanism judges that the rotating speed of the driving motor 3 is regulated to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of a second preset tooth pitch; the second-stage processing mode meets the condition that the distance average value is smaller than or equal to the preset distance average value.
When the distance between each tooth of the workpiece is larger, judging whether each gear with large distance is dispersed according to the distance average value of the transverse axis distance of each wave crest in the tooth distance-tooth number graph, and when the distance average value is too small, judging that each gear with large distance is dispersed, so that the processed workpiece is not in accordance with the preset standard, and the reason that the rotating speed of the driving motor 3 is too slow to cause the too large tooth distance of the workpiece is judged, the rotating speed of the driving motor 3 is regulated to be higher, so that the preparation precision of the subsequent workpiece is ensured, and the preparation efficiency of the workpiece is further effectively improved.
When the average distance value is too large, the gears with large intervals are concentrated, so that the circle center deviation is obtained to judge whether the workpiece is fixed and inclined due to the fact that the clamping force of each clamp 2 is not coordinated, the reason that the processed workpiece does not meet the preset standard is accurately obtained, specific adjusting measures are determined, the production quality of the workpiece is effectively improved, and meanwhile the preparation efficiency of the workpiece is effectively improved.
Specifically, the analysis mechanism overlaps the acquired image information of the workpiece with the preset workpiece image information in the first primary processing mode, acquires the distance between the circle center of the workpiece in the overlapped image and the circle center of the preset workpiece image information, marks the distance as circle center deviation, and determines a secondary processing mode that the processed workpiece does not meet the preset standard according to the obtained circle center deviation, wherein:
the first secondary processing mode is that the analysis mechanism adjusts the feed speed of each milling cutter 4 to a corresponding value according to the difference value between the preset distance average value and the distance average value; the first secondary treatment mode meets the condition that the circle center deviation is smaller than or equal to a preset circle center deviation;
the second-stage processing mode is that the analysis mechanism maps the image of the workpiece into the plane to which each clamp 2 belongs to obtain a vector taking the center point of each clamp 2 as a starting point and the edge of the workpiece farthest from the starting point as an end point, and the analysis mechanism adjusts the clamping force of each clamp 2 to a corresponding value according to the obtained vector; the second secondary treatment mode meets the condition that the circle center deviation is larger than the preset circle center deviation.
When the circle center deviation is overlarge, the grasping force of each clamp 2 is adjusted due to the fact that the workpiece is fixed and inclined due to the fact that the clamping force of each clamp 2 is not coordinated, so that stable machining of the workpiece is guaranteed, and further the preparation efficiency of the workpiece is effectively improved. When the circle center deviation is smaller, it is judged that the lack of tooth gaps which cannot be sufficiently polished is caused by the fact that the machining of the milling cutter 4 cannot reach the preset standard, so that the feed speed of the milling cutter 4 is reduced, the sufficient polishing of the milling cutter 4 is ensured, and the service life of the milling cutter 4 is prolonged.
Specifically, the analysis mechanism maps the image of the workpiece into the plane to which each jig 2 belongs in the second stage processing mode to obtain a vector having the center point of each jig 2 as a starting point and the edge of the workpiece farthest from the starting point as an end point, and the analysis mechanism determines the adjustment mode of the clamping force for the two jigs 2 farthest from the end point according to the length of the vector, wherein:
the first clamping force adjusting mode is that the analysis mechanism uses a first preset clamping force adjusting coefficient to adjust the clamping force of the two clamps 2 farthest from the end point to corresponding values; the first clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a first preset length;
The second clamping force adjusting mode is that the analysis mechanism uses a second preset clamping force adjusting coefficient to adjust the clamping force of the two clamps 2 farthest from the end point to corresponding values; the second clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a second preset length and larger than the first preset length, and the first preset length is smaller than the second preset length;
the third clamping force adjusting mode is that the analysis mechanism uses a third preset clamping force adjusting coefficient to adjust the clamping force of the two clamps 2 farthest from the end point to a corresponding value; the third clamping force adjustment mode satisfies that the length of the vector is greater than the second preset length.
Specifically, the analysis mechanism draws the connection line of the two clamps 2 farthest from the end point under the condition of completing the adjustment of the clamping force of the two clamps 2 so as to obtain the included angle between the connection line and the vector, and the analysis mechanism sequentially determines the correction mode of the clamping force of each clamp 2 according to the included angle between the connection line and the vector by using a single clamp 2, wherein:
the first correction mode is that the analysis mechanism corrects the clamping force of the single clamp 2 to a corresponding value by using a first preset correction coefficient; the first correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp 2 is smaller than or equal to a first preset included angle;
The second correction mode is that the analysis mechanism corrects the clamping force of the single clamp 2 to a corresponding value by using a second preset correction coefficient; the second correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp 2 is smaller than or equal to a second preset included angle and larger than the first preset included angle, and the first preset included angle is smaller than the second preset included angle;
the third correction mode is that the analysis mechanism corrects the clamping force of the single clamp 2 to a corresponding value by using a third preset correction coefficient; the third correction mode satisfies that the included angle between the connecting line and the vector by the single clamp 2 is larger than the second preset included angle.
Specifically, the analysis means calculates a difference between a first preset pitch average value and a pitch average value in the first workpiece determination mode, and marks the difference as a pitch difference, and the analysis means determines a speed adjustment mode for the rotational speed of the drive motor 3 according to the obtained pitch difference, wherein:
the first speed adjusting mode is that the analysis mechanism uses a first preset speed adjusting coefficient to adjust the rotation speed of the driving motor 3 down to a corresponding value; the first speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a first preset tooth pitch difference value;
The second speed adjusting mode is that the analysis mechanism uses a second preset speed adjusting coefficient to adjust the rotation speed of the driving motor 3 down to a corresponding value; the second speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a second preset tooth pitch difference value and larger than the first preset tooth pitch difference value, and the first preset tooth pitch difference value is smaller than the second preset tooth pitch difference value;
the third speed adjusting mode is that the analysis mechanism uses a third preset speed adjusting coefficient to adjust the rotation speed of the driving motor 3 down to a corresponding value; the third speed adjustment mode satisfies that the pitch difference is greater than the second preset pitch difference.
Specifically, the analysis means determines a drive adjustment manner for the rotational speed of the drive motor 3 based on the mean value difference, wherein:
the first driving adjustment mode is that the analysis mechanism uses a first preset driving adjustment coefficient to adjust the rotation speed of the driving motor 3 to a corresponding value; the first driving adjustment mode meets the condition that the mean value difference value is smaller than or equal to a first preset mean value difference value;
the second driving adjustment mode is that the analysis mechanism uses a second preset driving adjustment coefficient to adjust the rotation speed of the driving motor 3 to a corresponding value; the second driving adjustment mode meets the condition that the mean value difference is smaller than or equal to a second preset mean value difference and larger than the first preset mean value difference, and the first preset mean value difference is smaller than the second preset mean value difference;
The third driving adjustment mode is that the analysis mechanism uses a third preset driving adjustment coefficient to adjust the rotation speed of the driving motor 3 to a corresponding value; the third driving adjustment mode meets the condition that the mean value difference is larger than the second preset mean value difference;
the mean value difference is a difference between the pitch average value and the second preset pitch average value.
Specifically, the analysis means determines a feed adjustment manner for the feed speed of each milling cutter 4 based on a speed difference between the rotational speed after adjustment and the rotational speed before adjustment, on the condition that adjustment of the rotational speed of the drive motor 3 is completed, wherein:
the first feeding adjustment mode is that the analysis mechanism uses a first preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the first feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a first preset speed difference value;
the second feeding adjustment mode is that the analysis mechanism uses a second preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the second feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a second preset speed difference value and larger than the first preset speed difference value, and the first preset speed difference value is smaller than the second preset speed difference value;
The third feeding adjustment mode is that the analysis mechanism uses a third preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the third feeding adjustment mode meets the condition that the speed difference value is larger than the second preset speed difference value.
Specifically, the analysis means determines, in the first secondary processing mode, a mode of adjustment of the feed speed of each milling cutter 4 according to the calculated preset distance average value and the difference between the distance average values, wherein:
the first adjusting mode is that the analyzing mechanism uses a first preset adjusting coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the first adjusting mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a first preset difference value;
the second adjusting mode is that the analyzing mechanism uses a second preset adjusting coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the second adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a second preset difference value and larger than the first preset difference value, and the first preset difference value is smaller than the second preset difference value;
the third adjusting mode is that the analyzing mechanism uses a third preset adjusting coefficient to adjust the feeding speed of each milling cutter 4 to a corresponding value; the third adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is larger than a second preset difference value;
And under the condition that the analysis mechanism finishes the adjustment of the feed speed of each milling cutter 4 in the first-stage processing mode and finishes the preparation of a new workpiece by using the adjusted operation parameters, if the analysis mechanism still processes the workpiece according to the new workpiece by using the first-stage processing mode, the analysis mechanism controls the alarm mechanism to send out alarm information for the abnormality of the milling cutters 4.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multi-axis turning and milling compound numerical control machine tool, which is characterized by comprising:
a bracket;
the primary rotating shaft is arranged on the bracket and comprises a plurality of clamps used for clamping the workpiece and a driving motor for controlling the rotation of the workpiece;
the secondary rotating shaft is arranged at one side of the primary rotating shaft and comprises a milling cutter used for processing a workpiece and a secondary motor used for controlling the milling cutter to rotate;
a detection mechanism provided on the bracket and including an image detector for acquiring image information of the workpiece;
the analysis mechanism is respectively connected with the primary rotating shaft, the secondary rotating shaft and corresponding parts in the detection mechanism, and is used for judging whether the processed workpiece meets the preset standard according to the calculated average value of the tooth distances on the surface of the workpiece, selecting any tooth of the workpiece as an origin, drawing a tooth pitch-tooth number graph aiming at the workpiece, and determining a processing mode aiming at the processed workpiece, wherein the processing mode does not meet the preset standard according to the average value of the horizontal axis distances among the peaks in the calculated tooth pitch-tooth number graph;
and the alarm mechanism is connected with the analysis mechanism and used for sending out corresponding alarm information according to the judgment result of the analysis mechanism.
2. The multi-axis turning and milling compound numerical control machine tool according to claim 1, wherein the analyzing mechanism calculates an average value of tooth distances on the surface of the workpiece according to the image information of the workpiece obtained by the image detector and marks the average value as a tooth distance average value under the condition that the processing of the workpiece is completed, and the analyzing mechanism determines whether the processed workpiece meets a workpiece judging mode of a preset standard according to the obtained tooth distance average value, wherein:
the first workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotating speed of the driving motor is reduced to a corresponding value according to the difference value between the first preset pitch average value and the pitch average value; the first workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a first preset average value of the tooth pitch;
the second workpiece judging mode is that the analysis mechanism judges that the processed workpiece meets the preset standard, and controls the first rotating shaft to maintain the current operation parameters; the second workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a second preset average value of the tooth pitch and larger than the first preset average value of the tooth pitch;
the third workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, any tooth of the workpiece is selected as an original point according to the acquired image information, a tooth pitch-tooth number graph aiming at the workpiece is drawn, and the analysis mechanism determines a processing mode aiming at the processed workpiece which does not meet the preset standard according to a distance average value of the horizontal axis distances of all wave crests in the calculated tooth pitch-tooth number graph; the third workpiece judging mode meets the condition that the average value of the tooth pitch is smaller than or equal to a third preset average value of the tooth pitch and larger than the second preset average value of the tooth pitch;
The fourth workpiece judging mode is that the analysis mechanism judges that the processed workpiece does not meet the preset standard, and the rotation speed of the driving motor is increased to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of the second preset tooth pitch; the fourth workpiece judging mode meets the condition that the average value of the tooth pitch is larger than the third preset average value of the tooth pitch; the first preset pitch average is less than the second preset pitch average and less than the third preset pitch average.
3. The multi-axis turning and milling compound numerical control machine according to claim 2, wherein the analyzing means selects any tooth of the workpiece as an origin according to the acquired image information in the third workpiece judging mode to draw a tooth pitch-number graph for the workpiece and calculate an average value of the horizontal axis distances of each peak in the tooth pitch-number graph, the analyzing means marks it as a distance average value, and determines a first-order processing mode for the processed workpiece that does not meet a preset standard according to the obtained distance average value, wherein:
the first one-step processing mode is a processing mode that the analysis mechanism overlaps the acquired image information of the workpiece with the preset workpiece image information to acquire the distance between the circle center of the workpiece in the overlapped image and the circle center of the preset workpiece image information, and marks the distance as circle center deviation, and the analysis mechanism determines that the processed workpiece does not meet the preset standard according to the obtained circle center deviation; the first one-level processing mode meets the condition that the distance average value is larger than a preset distance average value;
The second-stage processing mode is that the analysis mechanism judges that the rotating speed of the driving motor is increased to a corresponding value according to the difference value between the average value of the tooth pitch and the average value of a second preset tooth pitch; the second-stage processing mode meets the condition that the distance average value is smaller than or equal to the preset distance average value.
4. The multi-axis turning and milling composite numerical control machine according to claim 3, wherein the analyzing mechanism overlaps the acquired image information of the workpiece with the image information of the preset workpiece in the first one-step processing mode, acquires the distance between the center of the workpiece in the overlapped image and the center of the image information of the preset workpiece, and marks the distance as a center deviation, and the analyzing mechanism determines the two-step processing mode that the processed workpiece does not meet the preset standard according to the obtained center deviation, wherein:
the first secondary processing mode is that the analysis mechanism adjusts the feed speed of each milling cutter to a corresponding value according to the difference value between a preset distance average value and a distance average value; the first secondary treatment mode meets the condition that the circle center deviation is smaller than or equal to a preset circle center deviation;
the second-stage processing mode is that the analysis mechanism maps the image of the workpiece into the plane to which each clamp belongs to obtain vectors taking the center point of each clamp as a starting point and the edge of the workpiece farthest from the starting point as an end point, and the analysis mechanism adjusts the clamping force of each clamp to a corresponding value according to the obtained vectors; the second secondary treatment mode meets the condition that the circle center deviation is larger than the preset circle center deviation.
5. The multi-axis turning and milling compound numerical control machine according to claim 4, wherein the analyzing means maps the image of the workpiece into the plane to which each jig belongs in the second stage processing manner to obtain a vector having a center point of each jig as a start point and an edge of the workpiece farthest from the start point as an end point, and the analyzing means determines an adjusting manner of the clamping force for two jigs farthest from the end point according to the length of the vector, wherein:
the first clamping force adjusting mode is that the analysis mechanism uses a first preset clamping force adjusting coefficient to adjust the clamping force of two clamps farthest from the end point to corresponding values; the first clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a first preset length;
the second clamping force adjusting mode is that the analysis mechanism uses a second preset clamping force adjusting coefficient to adjust the clamping force of the two clamps farthest from the end point to corresponding values; the second clamping force adjusting mode meets the condition that the length of the vector is smaller than or equal to a second preset length and larger than the first preset length, and the first preset length is smaller than the second preset length;
the third clamping force adjusting mode is that the analysis mechanism uses a third preset clamping force adjusting coefficient to adjust the clamping force of the two clamps farthest from the end point to corresponding values; the third clamping force adjustment mode satisfies that the length of the vector is greater than the second preset length.
6. The multi-axis turning and milling compound numerical control machine according to claim 5, wherein the analyzing mechanism draws connecting lines of two clamps farthest from the end point under the condition of completing adjustment of clamping forces of the two clamps so as to obtain included angles between the connecting lines and vectors, and the analyzing mechanism sequentially determines a correction mode of the clamping forces of the clamps according to the included angles between the connecting lines and the vectors by using a single clamp, wherein:
the first correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a first preset correction coefficient; the first correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is smaller than or equal to a first preset included angle;
the second correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a second preset correction coefficient; the second correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is smaller than or equal to a second preset included angle and larger than the first preset included angle, and the first preset included angle is smaller than the second preset included angle;
the third correction mode is that the analysis mechanism corrects the clamping force of the single clamp to a corresponding value by using a third preset correction coefficient; the third correction mode meets the condition that an included angle between the connecting line and the vector by a single clamp is larger than the second preset included angle.
7. The multi-axis turning and milling compound numerically controlled machine tool according to claim 6, wherein the analyzing means calculates a difference between a first preset pitch average value and a pitch average value in the first workpiece determination mode, and marks the difference as a pitch difference, and the analyzing means determines a speed adjustment mode for the rotational speed of the driving motor based on the obtained pitch difference, wherein:
the first speed adjusting mode is that the analysis mechanism uses a first preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the first speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a first preset tooth pitch difference value;
the second speed adjusting mode is that the analysis mechanism uses a second preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the second speed adjusting mode meets the condition that the tooth pitch difference value is smaller than or equal to a second preset tooth pitch difference value and larger than the first preset tooth pitch difference value, and the first preset tooth pitch difference value is smaller than the second preset tooth pitch difference value;
the third speed adjusting mode is that the analysis mechanism uses a third preset speed adjusting coefficient to adjust the rotation speed of the driving motor down to a corresponding value; the third speed adjustment mode satisfies that the pitch difference is greater than the second preset pitch difference.
8. The multi-axis turn-milling composite numerically controlled machine of claim 7, wherein the analysis mechanism determines a drive adjustment for the rotational speed of the drive motor based on the mean difference value, wherein:
the first driving adjustment mode is that the analysis mechanism uses a first preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the first driving adjustment mode meets the condition that the mean value difference value is smaller than or equal to a first preset mean value difference value;
the second driving adjustment mode is that the analysis mechanism uses a second preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the second driving adjustment mode meets the condition that the mean value difference is smaller than or equal to a second preset mean value difference and larger than the first preset mean value difference, and the first preset mean value difference is smaller than the second preset mean value difference;
the third driving adjustment mode is that the analysis mechanism uses a third preset driving adjustment coefficient to adjust the rotation speed of the driving motor to a corresponding value; the third driving adjustment mode meets the condition that the mean value difference is larger than the second preset mean value difference;
the mean value difference is a difference between the pitch average value and the second preset pitch average value.
9. The multi-axis turning and milling compound numerically controlled machine tool according to claim 8, wherein the analyzing means determines a feed adjustment mode of the feed speed for each milling cutter according to a speed difference between the adjusted rotational speed and the rotational speed before adjustment, on the condition that adjustment of the rotational speed of the driving motor is completed, wherein:
the first feeding adjustment mode is that the analysis mechanism uses a first preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the first feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a first preset speed difference value;
the second feeding adjustment mode is that the analysis mechanism uses a second preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the second feeding adjustment mode meets the condition that the speed difference value is smaller than or equal to a second preset speed difference value and larger than the first preset speed difference value, and the first preset speed difference value is smaller than the second preset speed difference value;
the third feeding adjustment mode is that the analysis mechanism uses a third preset feeding adjustment coefficient to adjust the feeding speed of each milling cutter to a corresponding value; the third feeding adjustment mode meets the condition that the speed difference value is larger than the second preset speed difference value.
10. The multi-axis turning and milling compound numerically controlled machine tool according to claim 9, wherein the analyzing means determines the adjustment mode of the feed speed of each milling cutter according to the calculated difference between the preset distance average and the distance average in the first secondary processing mode, wherein:
the first adjusting mode is that the analyzing mechanism uses a first preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the first adjusting mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a first preset difference value;
the second adjusting mode is that the analysis mechanism uses a second preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the second adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is smaller than or equal to a second preset difference value and larger than the first preset difference value, and the first preset difference value is smaller than the second preset difference value;
the third adjusting mode is that the analysis mechanism uses a third preset adjusting coefficient to adjust the feed speed of each milling cutter to a corresponding value; the third adjustment mode meets the condition that the difference value between the preset distance average value and the distance average value is larger than a second preset difference value;
and under the condition that the analysis mechanism finishes the adjustment of the feed speed of each milling cutter in the first-stage processing mode and finishes the preparation of a new workpiece by using the adjusted operation parameters, if the analysis mechanism processes the workpiece according to the new workpiece by using the first-stage processing mode, the analysis mechanism controls the alarm mechanism to send out alarm information for abnormal milling cutters.
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| US5761067A (en) * | 1996-03-29 | 1998-06-02 | The Gleason Works | Evaluating a toothed work piece for machining based on accumulated pitch variation |
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