CN112454596A - Three-axis linkage tangent arc groove control method and system - Google Patents
Three-axis linkage tangent arc groove control method and system Download PDFInfo
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- CN112454596A CN112454596A CN202011320795.6A CN202011320795A CN112454596A CN 112454596 A CN112454596 A CN 112454596A CN 202011320795 A CN202011320795 A CN 202011320795A CN 112454596 A CN112454596 A CN 112454596A
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- 238000005520 cutting process Methods 0.000 claims abstract description 136
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- 238000004590 computer program Methods 0.000 description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
- B27F5/00—Slotted or mortised work
- B27F5/02—Slotting or mortising machines tools therefor
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Abstract
The invention discloses a method and a system for controlling a three-axis linkage tangent arc groove, wherein the method comprises the following steps: configuring a cutting circular arc r, and establishing a cutting path function according to the circular arc radius and the circular arc segment length; fixing the front surface of the plate on a cutting table, establishing a three-dimensional rectangular coordinate system in the moving direction controlled by three driving shafts, and calculating the circle center, the initial cutting coordinate and the final cutting coordinate of the arc groove according to the cutting path function; starting a cutting blade; and simultaneously controlling the movement of three driving shafts in a three-dimensional rectangular coordinate system according to the cutting path function, and cutting an arc groove on the front surface of the plate. The control method adopts three-axis linkage control, the plate position is sensed through the laser detection device, the height from the blade to the cutting groove is calculated, and the movement of the three driving shafts is in linkage control according to a preset cutting path function, so that the arc groove with accurate size can be cut.
Description
Technical Field
The invention relates to a control method of an arc groove, in particular to a control method and a control system of a three-axis linkage tangent arc groove.
Background
The popular stealthy connecting piece of present plate fitment trade is connected and is assembled, and stealthy connecting piece usually need open the circular arc groove of a definite size at plate fitment's edge, then installs stealthy connecting piece in the circular arc groove, and prior art carries out simple processing such as simple trompil, knife coating to panel upper surface, but need set up different blades to the fluting method in the circular arc groove of the equidimension not of panel upper surface for grooved inefficiency.
Disclosure of Invention
One of the purposes of the invention is to provide a three-axis linkage tangent arc groove control method and a three-axis linkage tangent arc groove control system, wherein the control method adopts three-axis linkage control, senses the position of a plate through a laser detection device, calculates the height from a blade to a cutting groove, and controls the motion of three driving shafts in a linkage manner according to a preset cutting path function, so that an arc groove with accurate size can be cut.
The invention also aims to provide a control method and a control system for the three-axis linkage tangent arc groove.
Another object of the present invention is to provide a system for controlling a three-axis linkage tangent arc groove, in which the control method does not need to switch blades for different arc grooves, and only needs to drive three driving shafts to cut a plate in a preset direction and at a preset speed.
Another object of the present invention is to provide a method and a system for controlling a three-axis linkage tangent arc groove, in which a cutting position is automatically sensed by a laser detection device during cutting, and the position of a plate is not required to be fixed in one direction, so that the cutting position of the arc groove of the plate is not required to be manually positioned, and the cutting efficiency of the arc groove on the front surface of the plate is improved.
In order to achieve at least one of the above objects, the present invention further provides a method for controlling a three-axis linkage tangential arc groove, comprising the steps of:
configuring a cutting arc radius r, and establishing a cutting path function according to the arc radius and the length of an arc segment;
fixing the front surface of the plate on a cutting table, establishing a three-dimensional rectangular coordinate system in the moving direction controlled by three driving shafts, and calculating the circle center, the initial cutting coordinate and the final cutting coordinate of the arc groove according to the cutting path function;
starting a cutting blade;
and simultaneously controlling the movement of three driving shafts in a three-dimensional rectangular coordinate system according to the cutting path function, and cutting an arc groove on the front surface of the plate.
According to a preferred embodiment of the present invention, the three-dimensional rectangular coordinate system comprises an x-axis, a y-axis and a z-axis, the corresponding first driving axis moves along the x-axis direction, the second driving axis moves along the y-axis direction, the third driving axis moves along the z-axis direction, a coordinate origin is preset, and coordinates of the cutting blade in the three-dimensional rectangular coordinate system are determined according to the moving direction and the moving distance of the three coordinate axes.
According to another preferred embodiment of the present invention, the laser detecting device emits laser to the cutting table and receives the reflected laser at the same time, calculates a time difference between the emitted laser and the reflected laser, and determines the height of the sheet material according to the time difference.
According to another preferred embodiment of the present invention, the second driving shaft is driven to move along the y-axis direction, and the laser detection device calculates the time difference between the transmitted laser signal and the received laser signal in real time, if the time difference is not changed, the second driving shaft is continuously driven to move along the y-axis direction, if the time difference is changed, the difference change value is calculated, and the time difference between the changed transmitted laser signal and the changed received laser signal is calculated for obtaining the edge position coordinate of the plate material and the distance between the blade and the front surface of the plate material, wherein the laser detection device transmits the laser signal and receives the laser signal perpendicular to the front surface of the plate material.
According to another preferred embodiment of the present invention, the second driving shaft is driven to move along the x-axis direction, and the laser detection device calculates the time difference between the transmitted laser signal and the received laser signal in real time, if the time difference is not changed, the second driving shaft is continuously driven to move along the x-axis direction, and if the time difference is changed, the difference change value is calculated, and the time difference between the transmitted laser signal and the received laser signal after the change is calculated, so as to obtain the edge position coordinates of the plate material and the distance between the blade and the front surface of the plate material.
According to another preferred embodiment of the present invention, when the second driving shaft is driven to move along the x-axis or y-axis direction and the laser detection device senses that the variation value of the time difference between the laser signal being emitted and the laser signal being received is greater than the set first threshold value, the time coordinate is saved, and the movement length of the first driving shaft, the second driving shaft and the third driving shaft moving based on the time coordinate is recorded at the same time.
According to another preferred embodiment of the present invention, the x-axis or the y-axis is driven to move to a preset distance according to a preset initial cutting coordinate, so that the cutting blade is located above the initial cutting coordinate, and further, the distance between the cutting blade and the front surface of the plate material is calculated according to the time difference between the laser signal emitted by the laser detection device and the laser signal received by the laser detection device in the z-axis direction, so as to perform the cutting action in the z-axis direction.
According to another preferred embodiment of the present invention, when the cutting blade is moved to the initial cutting coordinate by the third driving shaft, the second driving shaft and the third driving shaft are simultaneously driven to perform the cutting motion of the cutting blade in the y-z plane according to the cutting path function, so that the cutting blade makes the cutting motion from the initial cutting coordinate to the final cutting coordinate according to the cutting path function.
According to another preferred embodiment of the present invention, when the cutting blade is moved to the initial cutting coordinate by the third driving shaft, the second driving shaft and the third driving shaft are simultaneously driven to perform the cutting motion of the cutting blade in the x-z plane according to the cutting path function, so that the cutting blade makes the cutting motion from the initial cutting coordinate to the final cutting coordinate according to the cutting path function.
In order to achieve at least one of the above objects, the present invention further provides a three-axis linkage tangent arc groove control system, which adopts the above method.
Drawings
FIG. 1 is a schematic flow chart of a method for controlling a three-axis linkage tangent arc groove according to the present invention.
Fig. 2 is a schematic structural diagram of a device corresponding to the triaxial linkage tangent arc groove control method.
FIG. 3 is a schematic diagram showing the structure of a plate arc groove formed by cutting with a triaxial linkage tangent arc groove control method. Wherein,
a first driving shaft-11, a second driving shaft-12, a third driving shaft-13, a cutting blade-20, a plate-30, a cutting table-40 and a laser detection device-50.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1-3, the present invention discloses a three-axis linkage tangent circular arc groove control method and system, the system can use a material-cutting machine to perform cutting, the system has three driving axes including a first driving axis 11, a second driving axis 12 and a third driving axis 13, wherein the first driving axis 11, the second driving axis 12 and the third driving axis 13 are respectively perpendicular to each other for driving a cutting blade 20 to move in three mutually perpendicular directions, the control method is constructed by pre-establishing a virtual three-dimensional rectangular coordinate system, the coordinate system is constructed by computer software simulation, three coordinate axes of the three-dimensional rectangular coordinate system are respectively an x axis, a y axis and a z axis, wherein the extending direction of the x axis is the moving direction of the first driving axis 11, the y axis is the moving direction of the second driving axis 12, and the z axis is the moving direction of the third driving axis 13, the first driving shaft 11, the second driving shaft 12 and the third driving shaft 13 are respectively connected with independent servo motors and are used for driving shafts in the extending direction of three coordinate axes to independently move.
The control method comprises the following steps: establishing a cutting path function, wherein the cutting path function is determined according to the size of the circular arc groove to be cut and the position on the front surface of the plate 30, wherein the front surface of the plate 30 is the upper surface when the plate 30 is installed on the cutting table 40, the cutting path function can control the first driving shaft 11, the second driving shaft 12 and the third driving shaft 13 to perform linkage motion, and the cutting path function can control the three driving shafts to perform circular arc cutting motion.
Specifically, the system calculates the arc length corresponding to the arc groove to be cut and the center coordinate corresponding to the arc according to the cutting path function, wherein the center coordinate is located above the front surface of the plate 30, calculates the initial cutting coordinate and the final cutting coordinate located on the front surface of the plate 30 according to the center coordinate and the arc length to be cut, automatically or manually moves the blade to the initial cutting coordinate under the action of three driving shafts, and further performs the cutting operation according to the cutting path function, and it is worth mentioning that a laser detection device 50 is arranged on the control system, the laser detection device 50 irradiates a vertical laser beam towards the front surface of the plate 30, further receives the laser reflected by the front surface of the plate 30, and further calculates the laser emission time and the reflected laser receiving time of the laser detection device 50, and the system has a calculation and analysis module, the calculation and analysis module acquires the transmitting time and the receiving time of the laser and calculates the time difference between the transmitting time and the receiving time,
the distance between the cutting blade 20 and the front surface of the plate material 30 can be calculated by the calculation and analysis module according to the time difference value, and the distance is used for controlling the cutting blade 20 to move upwards or downwards along the z-axis direction. A first threshold value may be set in the calculation and analysis module, when the system is started, the cutting blade 20 is driven by the first driving shaft 11 or the second driving shaft 12, so that the cutting blade 20 can move along the x-axis or the y-axis direction and calculate the time difference between the transmitting time and the receiving time in real time, calculate a change value of the time difference value, and if the change value is greater than the first threshold value, it indicates that the laser detection device 50 has an obstacle or the sheet material 30 itself on the cutting table 40 relative to the lower side of the cutting blade 20, and thus the position of the sheet material 30 can be obtained by means of laser sensing, and it should be noted that the first threshold value is set to sense sheet materials 30 with different thicknesses, that is, only sheet materials 30 with certain thicknesses can be sensed, and the initial time of the change value of the time difference value is recorded, and calculating a coordinate value of the blade at the initial moment in the coordinate system, and further determining an initial cutting coordinate according to the coordinate value, it should be noted that, in one preferred embodiment of the present invention, the plate material 30 may be installed and fixed at a position where the edge of the plate material 30 has a fixed x value or y value, and the value is recorded in the system, and when the change value of the time difference value is greater than the first threshold value, the position of the cutting blade 20 relative to the plate material 30 may be determined by obtaining the coordinate value of the blade at the initial moment in the coordinate system.
For example: if the plate 30 is fixed on two position-limiting plates in the x-axis direction, where the x-axis value of the two position-limiting plates may be 2, 20, and the y-axis value is 5, the coordinate range of the plate 30 may be: (2-20, 5, z) describing the spatial extent of the sheet material 30 in the coordinate system, so that when the laser detection device 50 detects an appreciable change in the time difference of the blade at the (5, 5, 20) position, the relative position of the cutting blade 20 at the edge of the sheet material 30 can be further calculated, and after recording this relative position, the first, second and third drive shafts 12, 13 can be automatically driven simultaneously in accordance with the cutting path function to perform the cutting task on the sheet material 30. The cutting path function is executed to control the first driving shaft 11 and the third driving shaft 13 to move or control the second driving shaft 12 and the third driving shaft 13 to move if the cutting path function is the initial cutting coordinate of the cutting path function according to the coordinates obtained by the laser detection device 50 and the self coordinates. That is, the cutting path function is a path function in the x-axis and z-axis planes or in the y-axis and z-axis planes, and satisfies the x-axis and z-axis functions2+z2＝r2Or y2+z2＝r2And r is the radius of the arc groove, and the radius can be obtained by calculating the arc length and the radian of the arc groove to be cut.
The system automatically or manually moves the cutting blade 20 to an initial cutting coordinate after recognizing the edge of the sheet material 30, and further performs an automatic cutting operation according to a cutting path function, in one preferred embodiment of the present invention, after recognizing the edge coordinate of the sheet material 30, a designated x-axis or y-axis coordinate value is inputted in the system, and a plurality of coordinate values designating a single coordinate value or a space are set on another coordinate axis for forming a single or spaced initial cutting coordinate, and the first driving shaft 11 or the second driving shaft 12 drives the cutting path function to be performed on the sheet material 30 for each initial cutting coordinate, so that a single or spaced circular arc groove is formed on the front surface of the sheet material 30.
Further, the difference between the laser emitting time and the laser receiving time is obtained by the laser detecting device 50, and is used for calculating the distance between the cutting blade 20 and the front surface of the plate 30, after an initial cutting coordinate is obtained, the blade is made to approach the initial cutting coordinate by controlling the third driving shaft 13 to move up and down, and further the third driving shaft 13 and the first driving shaft 11 are controlled to perform linkage cutting on the front surface of the plate 30 according to a cutting path function, or the third driving shaft 13 and the second driving shaft 12 are controlled to perform linkage cutting on the front surface of the plate 30, wherein the third driving shaft 13 is used for controlling the depth of the arc groove, and the first driving shaft 11 and the second driving shaft 12 are used for controlling the length of the arc groove.
In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication section, and/or installed from a removable medium. The computer program, when executed by a Central Processing Unit (CPU), performs the above-described functions defined in the method of the present application. It should be noted that the computer readable medium mentioned above in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wire segments, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless section, wire section, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It will be understood by those skilled in the art that the embodiments of the present invention described above and illustrated in the drawings are given by way of example only and not by way of limitation, the objects of the invention having been fully and effectively achieved, the functional and structural principles of the present invention having been shown and described in the embodiments, and that various changes or modifications may be made in the embodiments of the present invention without departing from such principles.
Claims (10)
1. A three-axis linkage tangent arc groove control method is characterized by comprising the following steps:
configuring a cutting arc radius r, and establishing a cutting path function according to the arc radius and the length of an arc segment;
fixing the front surface of the plate on a cutting table, establishing a three-dimensional rectangular coordinate system in the moving direction controlled by three driving shafts, and calculating the circle center, the initial cutting coordinate and the final cutting coordinate of the arc groove according to the cutting path function;
starting a cutting blade;
and simultaneously controlling the movement of three driving shafts in a three-dimensional rectangular coordinate system according to the cutting path function, and cutting an arc groove on the front surface of the plate.
2. The method as claimed in claim 1, wherein the three-dimensional rectangular coordinate system includes an x-axis, a y-axis and a z-axis, the corresponding first driving shaft moves along the x-axis, the second driving shaft moves along the y-axis, the third driving shaft moves along the z-axis, the origin of coordinates is preset, and coordinates of the cutting blade in the three-dimensional rectangular coordinate system are determined according to the moving direction and the moving distance of the three coordinate axes.
3. The method as claimed in claim 1, wherein the laser detection device emits laser to the cutting table, receives reflected laser, calculates a time difference between the emitted laser and the reflected laser, and determines the height of the plate according to the time difference.
4. The method as claimed in claim 3, wherein the second driving shaft is driven to move along the y-axis direction, and the laser detection device calculates the time difference between the transmitted laser signal and the received laser signal in real time, if the time difference is not changed, the second driving shaft is continuously driven to move along the y-axis direction, if the time difference is changed, the change value of the difference is calculated, and the time difference between the transmitted laser signal and the received laser signal after the change is calculated, so as to obtain the edge position coordinates of the plate and the distance between the blade and the front surface of the plate, wherein the laser detection device transmits the laser signal and receives the laser signal perpendicular to the front surface of the plate.
5. The method as claimed in claim 4, wherein the second driving shaft is driven to move along the x-axis direction, the laser detection device calculates the time difference between the transmitted laser signal and the received laser signal in real time, if the time difference is not changed, the second driving shaft is continuously driven to move along the x-axis direction, if the time difference is changed, the difference change value is calculated, and the time difference between the transmitted laser signal and the received laser signal after the change is calculated, so as to obtain the edge position coordinates of the plate and the distance between the blade and the front surface of the plate.
6. The method as claimed in claim 5, wherein when the second driving shaft is driven to move along the x-axis or y-axis direction and the laser detection device senses that the variation of the time difference between the laser signal transmission and the laser signal reception is greater than a first threshold, the time coordinate is saved, and the movement length of the first driving shaft, the second driving shaft and the third driving shaft is recorded based on the time coordinate.
7. The method as claimed in claim 6, wherein the x-axis or y-axis is driven to move to a predetermined distance according to a predetermined initial cutting coordinate, so that the cutting blade is located above the initial cutting coordinate, and further, the distance between the cutting blade and the front surface of the plate material is calculated according to the time difference between the laser signal emitted and the laser signal received by the laser detection device in the z-axis direction, so as to perform the cutting action in the z-axis direction.
8. The method as claimed in claim 1, wherein when the cutting blade moves to the initial cutting coordinate by the third driving shaft, the second and third driving shafts are driven simultaneously to perform the cutting motion of the cutting blade in the y-z plane according to the cutting path function, so that the cutting blade performs the cutting motion from the initial cutting coordinate to the final cutting coordinate according to the cutting path function.
9. The method as claimed in claim 1, wherein when the cutting blade moves to the initial cutting coordinate by the third driving shaft, the second and third driving shafts are driven simultaneously to perform the cutting motion of the cutting blade in the x-z plane according to the cutting path function, so that the cutting blade performs the cutting motion from the initial cutting coordinate to the final cutting coordinate according to the cutting path function.
10. A triaxial linkage tangential arc groove control system, characterized in that the system employs a triaxial linkage tangential arc groove control method according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011320795.6A CN112454596B (en) | 2020-11-23 | 2020-11-23 | Three-axis linkage tangent arc groove control method and system |
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| CN202011320795.6A CN112454596B (en) | 2020-11-23 | 2020-11-23 | Three-axis linkage tangent arc groove control method and system |
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| CN112454596B CN112454596B (en) | 2022-11-25 |
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| DE3026687A1 (en) * | 1980-07-15 | 1982-02-04 | Franz Nikolaus 7910 Neu-Ulm Strahl | Plate cutting machine with adjustable table - has circular saw travelling above support table with two parts tilting about longitudinal axis |
| CA2555466A1 (en) * | 2005-08-16 | 2007-02-16 | Masonite Corporation | Arched top door facing and system for forming an arched top door facing |
| CN103543696A (en) * | 2012-07-13 | 2014-01-29 | 波音公司 | Method of optimizing toolpaths using medial axis transformation |
| CN103624304A (en) * | 2013-11-25 | 2014-03-12 | 长春轨道客车股份有限公司 | Method for machining axially changed spatial arc slots |
| CN105415509A (en) * | 2015-09-25 | 2016-03-23 | 上海日进机床有限公司 | Silicon ingot squarer and silicon ingot squaring cutting method |
| CN211762197U (en) * | 2020-03-02 | 2020-10-27 | 济南西科数控设备有限公司 | Slotting equipment provided with axial feeding cutter and radial feeding cutter |
| CN111958707A (en) * | 2020-09-16 | 2020-11-20 | 营口鑫白云机械有限公司 | CNC woodworking arc notch cutting device and milling machine |
-
2020
- 2020-11-23 CN CN202011320795.6A patent/CN112454596B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3026687A1 (en) * | 1980-07-15 | 1982-02-04 | Franz Nikolaus 7910 Neu-Ulm Strahl | Plate cutting machine with adjustable table - has circular saw travelling above support table with two parts tilting about longitudinal axis |
| CA2555466A1 (en) * | 2005-08-16 | 2007-02-16 | Masonite Corporation | Arched top door facing and system for forming an arched top door facing |
| CN103543696A (en) * | 2012-07-13 | 2014-01-29 | 波音公司 | Method of optimizing toolpaths using medial axis transformation |
| CN103624304A (en) * | 2013-11-25 | 2014-03-12 | 长春轨道客车股份有限公司 | Method for machining axially changed spatial arc slots |
| CN105415509A (en) * | 2015-09-25 | 2016-03-23 | 上海日进机床有限公司 | Silicon ingot squarer and silicon ingot squaring cutting method |
| CN211762197U (en) * | 2020-03-02 | 2020-10-27 | 济南西科数控设备有限公司 | Slotting equipment provided with axial feeding cutter and radial feeding cutter |
| CN111958707A (en) * | 2020-09-16 | 2020-11-20 | 营口鑫白云机械有限公司 | CNC woodworking arc notch cutting device and milling machine |
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| CN112454596B (en) | 2022-11-25 |
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