Polyhedron cutting method, device, equipment and storage medium for machine tools

Abstract

The present invention relates to the field of laser processing technology, and in particular to a polyhedron cutting method, device, equipment and storage medium for a machine tool, the method comprising: confirming the actual working distance of a laser cutting head; positioning and fixing a workpiece to be processed according to preset position requirements; obtaining a finished product effect drawing and finished product related parameters, and generating section parameters according to the finished product related parameters; from the finished product effect drawing, generating an initial processing area based on any facet, and after completing the processing of the initial processing area, processing adjacent facets one by one along a preset direction until all facets are processed; the method disclosed in the present application uses a laser machine tool to complete the cutting of a polyhedron, has the advantages of high cutting efficiency and high cutting accuracy, and can avoid interference problems between processed surfaces and surfaces to be processed, thereby improving cutting quality.

Description

Technical Field

[0001] The present invention relates to the field of laser processing technology, and in particular to a polyhedron cutting method, device, equipment and storage medium for a machine tool. Background Art

[0002] It is very challenging to shape a workpiece made of superhard materials, such as diamond (natural) and / or synthetic diamond, into a product with a desired complex shape, especially when high forming accuracy is required. For example, diamond (rough) is often manufactured into complex shapes, including "round", "polygonal", "green pillar", "pear" or "princess", and these complex shapes have multiple facets that must be cut with very high accuracy.

[0003] The traditional method of manufacturing diamond rough into multi-faceted diamond (or any other faceted gemstone) includes cutting (such as cleaving, sawing and / or grinding) and polishing, and the aforementioned two processes are often performed manually; in the manual processing process, facets need to be generated one by one, and each facet grinding needs to be compared with the initial plan and corrected according to the comparison result, which has the problems of many processing steps and long processing time, and manual grinding is greatly affected by human factors, and there is a problem of unstable processing quality.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a polyhedron cutting method for a machine tool, which uses a laser machine tool to complete the cutting of the polyhedron and has the advantages of high cutting efficiency, high cutting accuracy and stable cutting quality.

[0006] The first aspect of the present invention provides a polyhedron cutting method for a machine tool, including: confirming the actual working distance of a laser cutting head; positioning and fixing a workpiece to be processed according to preset position requirements; obtaining a finished product effect drawing and finished product related parameters, and generating section parameters according to the finished product related parameters; from the finished product effect drawing, generating an initial processing area based on any facet, and after completing the processing of the initial processing area, processing adjacent facets one by one along a preset direction until all facets are processed.

[0007] Optionally, in a first embodiment of the first aspect of the present invention, the confirmation of the actual working distance of the laser cutting head specifically includes: controlling the probe to move to the top of a fixture bar based on a preset probe movement speed and movement path, and the fixture bar is used to install the blank; controlling the probe to move downward to contact the fixture bar based on a preset probe descent speed, and when the probe feeds back a contact signal, recording the position of the probe and recording it as the Z-axis reference point; obtaining the position information and processing requirements of the laser cutting head, and confirming the actual working distance of the laser cutting head based on the Z-axis reference point, the position information and processing requirements of the laser cutting head.

[0008] Optionally, in a second embodiment of the first aspect of the present invention, the positioning and fixing of the blank to be processed according to the preset position requirements specifically includes: after the installation of the blank is completed, obtaining a top real-time position image fed back by a camera located directly above the blank, and obtaining a side real-time position image fed back by a camera located on the side of the blank; based on the top real-time position image, analyzing whether the reference line on the blank is horizontal; if not, calculating the inclination angle and direction, and generating a horizontal adjustment plan; based on the side real-time position image, analyzing whether the reference line on the blank is aligned with the center axis of the blank; if not, calculating the offset, and generating a coaxial adjustment plan; based on the generated horizontal adjustment plan and coaxial adjustment plan, the blank to be processed is positioned and fixed.

[0009] Optionally, in a third embodiment of the first aspect of the present invention, the obtaining of finished product effect drawings and finished product related parameters, and generating section parameters according to the finished product related parameters specifically include: obtaining finished product effect drawings and finished product related parameters, the finished product effect drawings are finished product three-dimensional models, and the finished product related parameters include blank characteristics, waist diameter, pavilion angle, crown angle, pavilion height, waist height and crown height; generating section parameters according to the finished product related parameters, the section parameters include pavilion section parameter data and crown section parameter data; the pavilion section parameter data include pavilion cutting sequence, pavilion cutting speed, pavilion angle, pavilion Z-direction layering height and pavilion removal amount; the crown section parameter data include crown cutting sequence, crown cutting speed, crown angle, crown Z-direction layering height and crown removal amount.

[0010] Optionally, in a fourth embodiment of the first aspect of the present invention, the initial processing area is generated based on any facet from the finished product effect drawing, and after the processing of the initial processing area is completed, adjacent facets are processed one by one along a preset direction, specifically including: the finished product effect drawing includes a pavilion, a girdle and a crown, and the pavilion initial processing area is generated based on any pavilion facet of the pavilion from the finished product effect drawing; on the pavilion initial processing area, a first initial path is generated along the direction from the pavilion to the crown, any end point of the first initial path is used as the pavilion initial processing point, the other end point of the first initial path is connected, a first remaining path is generated in a bow-shaped manner, the first initial path and the first remaining path are integrated to obtain a pavilion initial processing path corresponding to the pavilion initial processing area; the pavilion initial processing area is processed based on the pavilion initial processing path, and after the processing of the pavilion initial processing area is completed, adjacent pavilion facets are processed one by one along the preset direction, and a pavilion processing area corresponding to the pavilion facet and a pavilion processing path corresponding to the pavilion processing area are generated.

[0011] Optionally, in a fifth embodiment of the first aspect of the present invention, after the processing of the pavilion initial processing area is completed, adjacent pavilion facets are processed one by one along a preset direction, and then the steps of: generating a crown initial processing area based on any crown facet of the crown from the finished effect drawing; generating a second initial path on the crown initial processing area along the direction from the crown to the pavilion, taking any end point of the second initial path as the crown initial processing point, connecting the other end point of the second initial path, generating a second remaining path in a bow-shaped manner, integrating the second initial path and the second remaining path, and obtaining a crown initial processing path corresponding to the crown initial processing area; processing the crown initial processing area based on the crown initial processing path, and after the processing of the crown initial processing area is completed, processing adjacent crown facets one by one along the preset direction, and generating a crown processing area corresponding to the crown facet, and a crown processing path corresponding to the crown processing area.

[0012] Optionally, in a sixth embodiment of the first aspect of the present invention, the area of ​​the initial processing area of ​​the pavilion and the area of ​​the pavilion processing area are both larger than the area of ​​the pavilion facet; the area of ​​the initial processing area of ​​the crown and the area of ​​the crown processing area are both larger than the area of ​​the crown facet.

[0013] The second aspect of the present invention provides a polyhedron cutting device for a machine tool, comprising: a confirmation module for confirming the actual working distance of a laser cutting head; an adjustment module for adjusting the position of a blank after installation according to a preset position requirement; a setting module for obtaining a finished product effect drawing and finished product related parameters, and generating section parameter data according to the finished product related parameters; a processing module for generating an initial processing area based on any facet from the finished product effect drawing, and after completing the processing of the initial processing area, processing adjacent facets one by one along a preset direction until all facets are processed.

[0014] A third aspect of the present invention provides a polyhedron cutting device for a machine tool, the polyhedron cutting device for a machine tool comprising: a memory and at least one processor, the memory storing instructions; at least one of the processors calling the instructions in the memory so that the polyhedron cutting device for the machine tool executes each step of the polyhedron cutting method for a machine tool described in any one of the above items.

[0015] A fourth aspect of the present invention provides a computer-readable storage medium having instructions stored thereon, and when the instructions are executed by a processor, the various steps of the polyhedron cutting method of any one of the above-mentioned machine tools are implemented.

[0016] In the technical solution of the present invention, the actual working distance of the laser cutting head is confirmed; the blank to be processed is positioned and fixed according to the preset position requirements; the finished product effect drawing and the relevant parameters of the finished product are obtained, and the section parameters are generated according to the relevant parameters of the finished product; from the finished product effect drawing, an initial processing area is generated based on any facet, and after the processing of the initial processing area is completed, the adjacent facets are processed one by one along the preset direction until the processing of all facets is completed; the method disclosed in the present application uses a laser machine tool to complete the cutting of the polyhedron, and has the advantages of high cutting efficiency and high cutting accuracy, and can avoid interference problems between the processed surface and the surface to be processed, thereby improving the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A first flow chart of a polyhedron cutting method provided by an embodiment of the present invention;

[0018] Figure 2 A second flow chart of the polyhedron cutting method provided by an embodiment of the present invention;

[0019] Figure 3 A third flow chart of the polyhedron cutting method provided by an embodiment of the present invention;

[0020] Figure 4 A fourth flow chart of the polyhedron cutting method provided by an embodiment of the present invention;

[0021] Figure 5 A fifth flow chart of the polyhedron cutting method provided by an embodiment of the present invention;

[0022] Figure 6 A sixth flow chart of the polyhedron cutting method provided by an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of the structure of a polyhedron cutting device provided in an embodiment of the present invention;

[0024] Figure 8 A schematic structural diagram of a polyhedron cutting device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention provides a polyhedron cutting method, device, equipment and storage medium for a machine tool. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 , an embodiment of the polyhedron cutting method of a machine tool in an embodiment of the present invention includes:

[0027] 101. Confirm the actual working distance of the laser cutting head;

[0028] In this embodiment, a single-station laser machine tool can be used to perform laser cutting on the blank to be processed to obtain the required polyhedron.

[0029] 102. Position and fix the blank to be processed according to the preset position requirements;

[0030] In this embodiment, a laser machine tool is used to achieve polyhedron cutting. The laser machine tool includes a jig rod, and the blank is clamped on the jig rod. For the diamond blank to be processed, in the processing process of one embodiment, it can be fixed on the jig rod in accordance with the principle of the pavilion facing upward and the crown facing downward. Since the bonding position is located at the crown, the pavilion and the waist can be processed first, and then the crown can be further processed to ensure that the blank is effectively fixed on the jig rod during the cutting process to avoid displacement of the blank and affect the cutting effect of the blank. Specifically, the blank is first pre-bonded to the jig rod, and the pre-bonded blank is basically perpendicular to the horizontal ground; then the real-time position image of the blank is obtained, and the blank is adjusted to a horizontal and coaxial state according to the real-time position image, and then glue is used to reinforce the bonding position between the blank and the jig rod, that is, the preset position requirement is perpendicular to the horizontal ground and coaxial.

[0031] 103. Obtain finished product effect drawings and related parameters of the finished product, and generate section parameters according to the related parameters of the finished product;

[0032] In this embodiment, for a diamond polyhedron, the facet parameters include pavilion facet parameter data and crown facet parameter data. By generating the pavilion facet parameter data and the crown facet parameter data, the laser machine tool can perform the cutting task stably and orderly according to the set parameters.

[0033] 104. Generate an initial processing area based on any facet from the finished product effect drawing. After the processing of the initial processing area is completed, process adjacent facets one by one along a preset direction until the processing of all facets is completed;

[0034] In this embodiment, starting from the initial processing area, adjacent pavilion facets are processed successively along a preset direction. This processing method can effectively avoid the problem of laser interference between the processed surface and the surface to be processed, and can ensure that the laser beam acts on the surface to be processed in a stable and predictable manner, thereby improving the processing accuracy, and can reduce errors such as spot drift and shape distortion, so that the processing results are closer to the expected value.

[0035] The present application discloses a polyhedron cutting method for a machine tool, which includes confirming the actual working distance of a laser cutting head; positioning and fixing a workpiece to be processed according to preset position requirements; obtaining a finished product effect drawing and relevant parameters of the finished product, and generating section parameters according to the relevant parameters of the finished product; generating an initial processing area based on any facet in the finished product effect drawing, and after completing the processing of the initial processing area, processing adjacent facets one by one along a preset direction until all facets are processed; the method disclosed in the present application uses a laser machine tool to complete the cutting of a polyhedron, and has the advantages of high cutting efficiency, high cutting accuracy and stable cutting quality; and using the processing method disclosed in the present application to process the workpiece to be processed can ensure that the cutting process is carried out stably and orderly, and can avoid interference problems between the processed surface and the surface to be processed, thereby ensuring the surface quality of the finished product after cutting.

[0036] See also Figure 2 The second embodiment of the polyhedron cutting method of the machine tool in the embodiment of the present invention includes:

[0037] 201. Control the probe to move to the top of a fixture bar based on a preset probe moving speed and moving path, wherein the fixture bar is used to clamp the blank;

[0038] In this embodiment, the probe can be moved precisely in the Z-axis direction, and its position can be accurately read by the control system.

[0039] 202. Based on a preset probe descending speed, the probe is controlled to move downward to contact the fixture rod. When the probe feeds back a contact signal, the position of the probe is recorded and recorded as a Z-axis reference point;

[0040] In this embodiment, the probe descends relatively slowly to ensure that the position it contacts is the highest point on the surface of the fixture rod.

[0041] 203. Obtain the position information and processing requirements of the laser cutting head, and confirm the actual working distance of the laser cutting head according to the Z-axis reference point, the position information and processing requirements of the laser cutting head;

[0042] In this embodiment, the position information of the laser cutting head is the relative position of the cutting head in the machine coordinate system; the actual working distance is the distance between the cutting head and the surface of the blank, and the actual working distance = required processing depth + safety distance, wherein the required processing depth is the depth that the laser beam needs to penetrate the material, and the safety distance is an additional distance set to ensure that the laser beam does not directly contact the cutting head or other parts of the machine. The required processing depth and safety distance are confirmed by the processing requirements.

[0043] In this embodiment, before processing the blank to be processed, the jig rod is first placed on the fixture of the machine tool spindle, and the probe is controlled to first detect the highest point of the jig rod. After obtaining the z-axis data, the jig rod can be removed; when processing multiple blanks to be processed multiple times in the subsequent process, there is no need to repeatedly use the probe to detect the z-axis data, that is, there is no need to repeat steps 201 to 203, because there is a positioning block on the jig rod, and each time it is installed, the installation height can be ensured to be consistent, that is, the Z-axis data can be ensured to remain unchanged; the actual working distance of the laser cutting head is adjusted according to the Z-axis data of the jig rod to ensure that the cutting head has the cutting ability, that is, to ensure the normal progress of the cutting task.

[0044] See also Figure 3 A third embodiment of the polyhedron cutting method of a machine tool in the embodiment of the present invention includes:

[0045] 301. After the installation of the blank is completed, a real-time position image of the top fed back by a camera located directly above the blank is obtained, and a real-time position image of the side fed back by a camera located on the side of the blank is obtained;

[0046] In this embodiment, reference lines are pre-engraved on the blank, and the image captured by the camera device needs to ensure that the reference lines on the blank are clearly visible.

[0047] 302. Analyze whether the reference line on the blank is horizontal according to the real-time position image of the top. If it is not horizontal, calculate the angle and direction of inclination and generate a horizontal adjustment plan;

[0048] In this embodiment, when the reference line is not horizontal, that is, when the reference line is tilted relative to the image boundary, the angle of the tilt is calculated using trigonometric functions, and the direction of the tilt is determined using a direction identifier. Based on the measured tilt angle and direction, a horizontal adjustment instruction is generated. The horizontal adjustment instruction is used to adjust the tilt device of the machine tool or adjust the angle of the fixture to rotate or translate the blank.

[0049] 303. Analyze whether the reference line on the blank is aligned with the central axis of the blank according to the real-time position image of the side. If not, calculate the offset and generate a coaxial adjustment plan.

[0050] In this embodiment, when the reference line is not aligned with the center axis of the blank, that is, when the reference line is not coaxial with the center axis of the blank, a laser measuring instrument is used to calculate the offset and the offset direction. When there are offsets in multiple directions, the total offset is calculated based on vector operations, and a coaxial adjustment instruction is generated based on the calculated offset. The coaxial adjustment instruction is used to adjust the machine tool worktable or adjust the working state of the mobile fixture to achieve the purpose of correcting the offset.

[0051] 304. According to the generated horizontal adjustment plan and coaxial adjustment plan, the workpiece to be processed is positioned and fixed.

[0052] See also Figure 4 The fourth embodiment of the polyhedron cutting method of the machine tool in the embodiment of the present invention includes:

[0053] 401. Obtaining a finished product effect drawing and finished product related parameters, wherein the finished product effect drawing is a finished product three-dimensional model, and the finished product related parameters include blank characteristics, girdle diameter, pavilion angle, crown angle, pavilion height, girdle height, and crown height;

[0054] In this embodiment, the finished product related parameters also include the C-axis rotation speed, which determines the speed of the diamond rotation during the laser cutting process; a higher rotation speed can improve production efficiency, but may also lead to a decrease in cutting quality because the laser beam spends less time on the material; conversely, a lower rotation speed can ensure better cutting quality but will reduce production efficiency.

[0055] 402. Generate section parameters according to relevant parameters of the finished product, wherein the section parameters include pavilion section parameter data and crown section parameter data; the pavilion section parameter data include pavilion cutting sequence, pavilion cutting speed, pavilion angle, pavilion Z-direction layer height and pavilion removal amount; the crown section parameter data include crown cutting sequence, crown cutting speed, crown angle, crown Z-direction layer height and crown removal amount;

[0056] In this embodiment, the cutting operation speed refers to the moving speed of the laser beam during the cutting process. A faster cutting speed can improve production efficiency, but it may also lead to a decrease in cutting quality because the heating and cooling process of the laser beam on the material may not be sufficient. A slower cutting speed can ensure better cutting quality, but it will reduce production efficiency. The pavilion cutting speed is generated according to the material of the blank, the power of the laser and the surface quality requirements of the finished product.

[0057] In this embodiment, the pavilion angle corresponds to the pavilion angle in the finished product related parameters.

[0058] In this embodiment, the Z-direction layer height of the pavilion is related to the pavilion height and the cutting accuracy requirements; the Z-direction layer height refers to the distance that the laser beam moves each time along the Z-axis direction during the cutting process. A smaller layer height can improve the cutting accuracy, but will increase the total cutting time. Although a larger layer height can reduce the cutting time, it may reduce the cutting quality.

[0059] In this embodiment, the pavilion removal amount is determined according to the shape and size of the blank to be processed and the shape, size and weight of the finished product among the parameters related to the finished product.

[0060] In this embodiment, the crown cutting speed is generated according to the material of the blank, the power of the laser and the surface quality requirements of the finished product; the crown angle corresponds to the crown angle in the finished product related parameters; the crown Z-axis layering height is related to the crown height and the cutting accuracy requirements; further, the crown removal amount is determined according to the shape and size of the blank to be processed and the shape, size and weight of the finished product in the finished product related parameters.

[0061] Furthermore, when the rough material to be processed is a diamond rough material, the finished product related parameters also include waist diameter and waist height. After the pavilion processing of the rough material to be processed is completed, the waist of the rough material to be processed is processed based on the waist diameter and waist height.

[0062] See also Figure 5 The fifth embodiment of the polyhedron cutting method of the machine tool in the embodiment of the present invention includes:

[0063] 501. The finished product rendering includes a pavilion, a girdle and a crown. From the finished product rendering, an initial processing area of ​​the pavilion is generated based on any pavilion facet of the pavilion;

[0064] In this embodiment, the pavilion initial processing area and the pavilion processing area can be rectangular areas.

[0065] 502. In the pavilion initial processing area, generate a first initial path along the direction from the pavilion to the crown, use any end point of the first initial path as the pavilion initial processing point, connect the other end point of the first initial path, generate a first remaining path in a bow-shaped manner, integrate the first initial path and the first remaining path, and obtain a pavilion initial processing path corresponding to the pavilion initial processing area;

[0066] In this embodiment, the specific position and boundary of the initial processing area of ​​the pavilion are first determined, and then the first initial path is drawn using processing software. The first initial path is a straight line, and its length is greater than the length of the corresponding facet. Then, the first remaining path is generated along the bow-shaped path. The integrated initial processing path of the pavilion is in the shape of a bow as a whole. Finally, the initial processing path of the pavilion is further optimized through the optimization tool to reduce empty strokes, avoid sharp turns or repeated processing, and achieve the purpose of reducing processing time and improving processing efficiency.

[0067] In this embodiment, the generated pavilion initial processing path and pavilion processing path both start cutting from the side of the pavilion facet, which can further avoid laser interference problems between the processed surface and the surface to be processed, and improve the surface quality of the finished product.

[0068] 503. Processing the pavilion initial processing area based on the pavilion initial processing path. After the processing of the pavilion initial processing area is completed, processing adjacent pavilion facets one by one along a preset direction, and generating a pavilion processing area corresponding to the pavilion facets and a pavilion processing path corresponding to the pavilion processing area.

[0069] In this embodiment, the preset direction may be in a clockwise direction or in a counterclockwise direction; further, the pavilion processing path corresponding to each pavilion processing area is consistent with the method for generating the pavilion initial processing path of the pavilion initial processing area.

[0070] See also Figure 6 The sixth embodiment of the polyhedron cutting method of the machine tool in the embodiment of the present invention includes:

[0071] 601. Generate an initial processing area of ​​the crown based on any crown facet of the crown from the finished product effect drawing;

[0072] In this embodiment, the crown initial processing area and the crown processing area can be rectangular areas.

[0073] 602. In the crown initial processing area, generate a second initial path along the direction from the crown to the pavilion, use any end point of the second initial path as the crown initial processing point, connect the other end point of the second initial path, generate a second residual path in a bow-shaped manner, integrate the second initial path and the second residual path, and obtain a crown initial processing path corresponding to the crown initial processing area;

[0074] In this embodiment, the specific position and boundary of the initial processing area of ​​the crown are first determined, and then the second initial path is drawn using processing software. The second initial path is a straight line, and its length is greater than the length of the corresponding facet. Then, the second remaining path is generated along the bow-shaped path. The integrated initial processing path of the crown is in the shape of a bow as a whole. Finally, the initial processing path of the crown is further optimized using an optimization tool.

[0075] 603. Processing the crown initial processing area based on the crown initial processing path. After the processing of the crown initial processing area is completed, processing adjacent crown facets one by one along a preset direction, and generating a crown processing area corresponding to the crown facets and a crown processing path corresponding to the crown processing area.

[0076] In this embodiment, the preset direction may be in a clockwise direction or in a counterclockwise direction; further, the crown processing path corresponding to each crown processing area is consistent with the generation method of the crown initial processing path of the crown initial processing area.

[0077] Furthermore, in an embodiment of the present invention, the area of ​​the pavilion initial processing area and the area of ​​the pavilion processing area are both larger than the area of ​​the pavilion facet, ensuring that the coverage range of the generated pavilion initial processing path and the pavilion processing path is larger than the area of ​​the pavilion facet, thereby ensuring that the laser cutting head can effectively cut the blank.

[0078] Furthermore, in an embodiment of the present invention, the area of ​​the crown initial processing area and the area of ​​the crown processing area are both larger than the area of ​​the crown facet, ensuring that the coverage of the generated crown initial processing path and the crown processing path is larger than the area of ​​the crown facet, thereby ensuring that the laser cutting head can effectively cut the blank.

[0079] The above describes the polyhedron cutting method of the machine tool in the embodiment of the present invention. The following describes the polyhedron cutting device of the machine tool in the embodiment of the present invention. Figure 7 , an embodiment of the polyhedron cutting device of the machine tool in the embodiment of the present invention comprises:

[0080] Confirmation module 701, used to confirm the actual working distance of the laser cutting head;

[0081] An adjustment module 702 is used to adjust the position of the installed blank according to a preset position requirement;

[0082] The setting module 703 is used to obtain the finished product effect drawing and the related parameters of the finished product, and generate the section parameter data according to the related parameters of the finished product;

[0083] The processing module 704 is used to generate an initial processing area based on any facet from the finished product effect drawing. After the processing of the initial processing area is completed, the adjacent facets are processed one by one along a preset direction until the processing of all facets is completed.

[0084] above Figure 7 The polyhedron cutting device of the machine tool in the embodiment of the present invention is described in detail from the perspective of modular functional entities. The polyhedron cutting device of the machine tool in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0085] Figure 8800 of the machine tool may have relatively large differences due to different configurations or performances, and may include one or more processors 810 (central processing units, CPU) and memory 820, and one or more storage media 830 (e.g., one or more mass storage devices) storing application programs 833 or data 832. Among them, the memory 820 and the storage medium 830 may be short-term storage or permanent storage. The program stored in the storage medium 830 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations in the polyhedron cutting device 800 of the machine tool. Furthermore, the processor 810 may be configured to communicate with the storage medium 830, and execute a series of instruction operations in the storage medium 830 on the polyhedron cutting device 800 of the machine tool to implement the steps of the polyhedron cutting method of the machine tool provided in the above-mentioned method embodiments.

[0086] The polyhedron cutting device 800 of a machine tool may further include one or more power supplies 840, one or more wired or wireless network interfaces 850, one or more input and output interfaces 860, and / or one or more operating systems 831, such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, etc. Those skilled in the art will appreciate that the structure of the polyhedron cutting device of a machine tool shown in the present application does not constitute a limitation on the polyhedron cutting device based on a machine tool, and may include more or less components than shown in the figure, or combine certain components, or arrange components differently.

[0087] The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are executed on a computer, the computer executes the steps of the polyhedron cutting method of a machine tool.

[0088] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device, or unit can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0089] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the whole or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0090] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A polyhedron cutting method for a machine tool, characterized in that: include: Confirm the actual working distance of the laser cutting head; Position and fix the blank to be processed according to the preset position requirements; Obtain finished product effect drawings and related parameters of the finished product, and generate section parameters based on the related parameters of the finished product; From the finished product effect drawing, generate the initial processing area based on any facet. After the processing of the initial processing area is completed, the adjacent facets are processed one by one along the preset direction. Specifically: The finished product rendering includes a pavilion, a girdle and a crown. From the finished product rendering, an initial processing area of ​​the pavilion is generated based on any pavilion facet of the pavilion; On the pavilion initial processing area, a first initial path is generated along the direction from the pavilion to the crown, any end point of the first initial path is used as the pavilion initial processing point, the other end point of the first initial path is connected, a first remaining path is generated in a bow-shaped manner, and the first initial path and the first remaining path are integrated to obtain a pavilion initial processing path corresponding to the pavilion initial processing area; The initial processing area of ​​the pavilion is processed based on the initial processing path of the pavilion. After the processing of the initial processing area of ​​the pavilion is completed, adjacent pavilion facets are processed one by one along a preset direction, and a pavilion processing area corresponding to the pavilion facets and a pavilion processing path corresponding to the pavilion processing area are generated; until the processing of all facets is completed.

2. The polyhedron cutting method of a machine tool according to claim 1, characterized in that: The confirmation of the actual working distance of the laser cutting head specifically includes: Controlling the probe to move to the top of a fixture bar based on a preset probe moving speed and moving path, wherein the fixture bar is used to mount the blank; Based on the preset probe descending speed, the probe is controlled to move downward to contact the fixture rod. When the probe feeds back a contact signal, the position of the probe is recorded and recorded as the Z-axis reference point. Obtain the position information and processing requirements of the laser cutting head, and confirm the actual working distance of the laser cutting head based on the Z-axis reference point, the position information and processing requirements of the laser cutting head.

3. The polyhedron cutting method of a machine tool according to claim 1, characterized in that: The positioning and fixing of the blank to be processed according to the preset position requirements specifically includes: Acquire a real-time position image of the top portion fed back by a camera located directly above the blank, and acquire a real-time position image of the side portion fed back by a camera located on the side of the blank; According to the real-time position image of the top, analyze whether the reference line on the blank is horizontal. If it is not horizontal, calculate the tilt angle and direction and generate a horizontal adjustment plan; According to the real-time position image of the side, analyze whether the reference line on the blank is aligned with the center axis of the blank. If not, calculate the offset and generate a coaxial adjustment plan; The workpiece to be processed is positioned and fixed according to the generated horizontal adjustment plan and coaxial adjustment plan.

4. The polyhedron cutting method of a machine tool according to claim 1, characterized in that: The step of obtaining the finished product effect drawing and the finished product related parameters and generating the section parameters according to the finished product related parameters specifically includes: Obtaining finished product effect drawings and finished product related parameters, wherein the finished product effect drawings are finished product three-dimensional models, and the finished product related parameters include blank characteristics, waist diameter, pavilion angle, crown angle, pavilion height, waist height and crown height; Generate section parameters according to relevant parameters of the finished product, the section parameters include pavilion section parameter data and crown section parameter data; the pavilion section parameter data include pavilion cutting sequence, pavilion cutting speed, pavilion angle, pavilion Z-direction layer height and pavilion removal amount; the crown section parameter data include crown cutting sequence, crown cutting speed, crown angle, crown Z-direction layer height and crown removal amount.

5. The polyhedron cutting method of a machine tool according to claim 4, characterized in that: After the processing of the initial processing area of ​​the pavilion is completed, the adjacent pavilion facets are processed one by one along the preset direction, and then the steps of: Generate the initial processing area of ​​the crown based on any crown facet of the crown from the finished effect drawing; On the crown initial processing area, a second initial path is generated along the direction from the crown to the pavilion, any end point of the second initial path is used as the crown initial processing point, the other end point of the second initial path is connected, a second remaining path is generated in a bow-shaped manner, and the second initial path and the second remaining path are integrated to obtain a crown initial processing path corresponding to the crown initial processing area; The crown initial processing area is processed based on the crown initial processing path. After the processing of the crown initial processing area is completed, adjacent crown facets are processed one by one along a preset direction, and a crown processing area corresponding to the crown facet and a crown processing path corresponding to the crown processing area are generated.

6. The polyhedron cutting method of a machine tool according to claim 5, characterized in that: The area of ​​the pavilion initial processing area and the area of ​​the pavilion processing area are both larger than the area of ​​the pavilion facet; the area of ​​the crown initial processing area and the area of ​​the crown processing area are both larger than the area of ​​the crown facet.

7. A polyhedron cutting device for a machine tool, characterized in that: include: Confirmation module, used to confirm the actual working distance of the laser cutting head; An adjustment module is used to position and fix the blank to be processed according to preset position requirements; The setting module is used to obtain the finished product effect drawings and related parameters of the finished product, and generate section parameter data according to the related parameters of the finished product; A processing module is used to generate an initial processing area based on any facet from a finished product effect drawing, and after the processing of the initial processing area is completed, the adjacent facets are processed one by one along a preset direction. Specifically: the finished product effect drawing includes a pavilion, a girdle and a crown. From the finished product effect drawing, the pavilion initial processing area is generated based on any pavilion facet of the pavilion; on the pavilion initial processing area, a first initial path is generated along the direction from the pavilion to the crown, any end point of the first initial path is used as the pavilion initial processing point, the other end point of the first initial path is connected, and a first remaining path is generated in a bow-shaped manner, and the first initial path and the first remaining path are integrated to obtain a pavilion initial processing path corresponding to the pavilion initial processing area; the pavilion initial processing area is processed based on the pavilion initial processing path, and after the processing of the pavilion initial processing area is completed, adjacent pavilion facets are processed one by one along the preset direction, and a pavilion processing area corresponding to the pavilion facet and a pavilion processing path corresponding to the pavilion processing area are generated; until the processing of all facets is completed.

8. A polyhedron cutting device for a machine tool, characterized in that: The polyhedron cutting device of the machine tool comprises: a memory and at least one processor, wherein the memory stores instructions; At least one of the processors calls the instructions in the memory to enable the polyhedron cutting device of the machine tool to execute each step of the polyhedron cutting method for the machine tool according to any one of claims 1 to 6.

9. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by the processor, the various steps of the polyhedron cutting method of the machine tool as claimed in any one of claims 1 to 6 are implemented.

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