CN115178647B - Punching classification method and system, electronic equipment and storage medium - Google Patents
Punching classification method and system, electronic equipment and storage medium Download PDFInfo
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- CN115178647B CN115178647B CN202211116319.1A CN202211116319A CN115178647B CN 115178647 B CN115178647 B CN 115178647B CN 202211116319 A CN202211116319 A CN 202211116319A CN 115178647 B CN115178647 B CN 115178647B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
Abstract
The present disclosure relates to a method and a system for classifying punched holes, an electronic device and a storage medium, which relate to the technical field of part processing, and include: acquiring parameter information of punching and parameter information of a machined part; pre-classifying the punched holes according to the parameter information of the punched holes, wherein the pre-classified punched holes comprise a front punched hole and a side punched hole; reclassifying the pre-classified middle side punched holes respectively based on the parameter information of the pre-classified middle side punched holes and the parameter information of the processed parts; and obtaining the positive punching classification data and the reclassified side punching classification data. The classified punching holes can be more suitable for the process machining of the machined parts, the problem of process interference caused by the fact that engineers are not considered when process procedures are arranged is solved, the workload of the process design of the die of the engineers is greatly saved, and the efficiency is improved.
Description
Technical Field
The present disclosure relates to the field of parts processing technologies, and in particular, to a punching classification method and system, an electronic device, and a storage medium.
Background
Punching is one of the main processing contents of sheet metal materials. In the existing stamping process design technology of the automobile inner panel, the processing part generally has punching process characteristics to be processed, and an engineer arranges the processing procedure of punching according to the punching position, the normal vector of the punching centroid and the trimming process of the peripheral outline.
At present, in order to avoid process interference generated during the processing of punching process characteristics, engineers need to do a lot of operations to arrange all punching processes, and a lot of time is spent; meanwhile, if an engineer is not skilled enough, the part processing production is stopped due to the fact that the punching judgment is wrong easily.
Disclosure of Invention
In order to solve the technical problem described above or at least partially solve the technical problem, the present disclosure provides a punch hole classification method, a system, an electronic device, and a storage medium.
In a first aspect, the present disclosure provides a punch sorting method, including:
acquiring parameter information of punching and parameter information of a machined part;
pre-classifying the punched holes according to the parameter information of the punched holes, wherein the pre-classification comprises a front punched hole and a side punched hole;
classifying the pre-classified middle side punched holes respectively based on the parameter information of the pre-classified middle side punched holes and the parameter information of the processed parts;
and obtaining the positive punching classification data and the reclassified side punching classification data.
Further, the parameter information of the punching and the parameter information of the processed part comprise a punching number, a punching coordinate, a normal vector of a punching centroid, a maximum distance from the punching centroid to a hole edge, a contour point coordinate and a contour point trimming angle.
Further, the pre-sorting comprises the following method: according to the punching centroid normal vector of each punched hole, the punched hole is divided into a positive punched hole and a side punched hole, and the side punched hole comprises an upper side punched hole, a lower side punched hole, a left side punched hole and a right side punched hole.
Further, the reclassification comprises the following steps:
establishing a first interference relation table of each side punched hole and the profile according to the punching coordinate, the profile point trimming angle and the maximum distance from the punching centroid of each side punched hole to the hole edge of each side punched hole;
establishing a second interference relation table between the punching holes on the same type of side according to different punching hole centroid normal vectors of one type of side punching holes of the upper side punching holes, the lower side punching holes, the left side punching holes and the right side punching holes and the maximum distance from the punching hole centroid of every two punching holes in the same type of side punching holes to the hole edge;
and classifying the punched holes in the upper side punched hole, the lower side punched hole, the left side punched hole and the right side punched hole according to the first interference relation table and the second interference relation table.
Further, the classifying the punched holes of the upper side punched hole, the lower side punched hole, the left side punched hole and the right side punched hole according to the first interference relationship table and the second interference relationship table includes the following methods:
A. randomly generating a side punching hole sequence of one type of side punching holes based on punching numbers of the side punching holes in the upper side punching holes, the lower side punching holes, the left side punching holes and the right side punching holes;
B. according to the sequence of the side punching sequence, sequentially judging the process properties of a certain punching hole in the side punching and all punching holes before the side punching sequence based on the first interference relation table and the second interference relation table, classifying the punching holes with the same process properties into a subclass, otherwise, classifying the punching holes into the subclass;
C. obtaining and outputting subclass classification data of the side punching;
D. and repeating the steps A-C to obtain and output the subclass classification data of the rest class side punching holes.
Further, before step C, the method further comprises:
the steps a-B are performed one or more times,
when the execution times are not one, the following method is executed:
obtaining a plurality of groups of classification data of the side punching subclasses of a certain class;
and obtaining and outputting one group of side punching subclass classification data with the least subclass number from a plurality of groups of side punching subclass classification data of a certain class.
In a second aspect, the present disclosure provides a punch sorting system comprising:
the parameter obtaining unit is used for obtaining parameter information of the punched hole and parameter information of the machined part;
the calculation unit is used for pre-classifying the punched holes according to the parameter information of the punched holes, and re-classifying the pre-classified middle-side punched holes respectively based on the parameter information of the pre-classified middle-side punched holes and the parameter information of the processed parts, wherein the pre-classified punched holes comprise front punched holes and side punched holes;
and the output unit is used for obtaining and outputting the positive punching classification data and the reclassified side punching classification data.
In a third aspect, the present disclosure provides a computer storage medium storing a program or instructions for causing a computer to execute the punch hole classification method of the first aspect.
In a fourth aspect, the present disclosure provides an electronic device, including a communication interface, a processor, a memory, and a bus, where the memory is used to store computer execution instructions, and the processor is connected to the memory through the bus, and when the electronic device runs, the processor executes the computer execution instructions stored in the memory, so as to execute the punching classification method according to the first aspect.
Compared with the prior art, the technical scheme provided by the disclosure has the following advantages:
all punched holes are pre-classified into a positive punched hole and a side punched hole, and the side punched holes are re-classified according to the punching processing technological requirements and the contour processing technology to obtain multiple subclasses in each class of side punched holes (upper side punched hole, lower side punched hole, left side punched hole and right side punched hole) in the side punched holes, wherein the part technological processing requirements of the multiple subclasses are consistent, so that the punched holes can be more suitable for the part technological processing, meanwhile, the problem of technological interference caused by the fact that an engineer does not consider the process when arranging a technological process is avoided, the workload of the engineer part technological design is greatly saved, and the efficiency is improved; the side punching hole sequences of the same type are randomly generated according to the side punching numbers of the same type for multiple times, multiple classification is carried out, and finally the side punching small type classification data with the minimum small type quantity is obtained, so that the classification error caused by single classification is avoided, and the punching classification accuracy is improved.
Drawings
Fig. 1 is a first schematic flow chart of a punching classification method according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart diagram of a punching classification method according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram of a punching classification system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram of a computer storage medium according to an embodiment of the disclosure.
21, a parameter obtaining unit; 22. a calculation unit; 23. an output unit; 3. an electronic device; 31. a processor; 32. a memory; 33. a communication interface; 34. a communication bus; 35. a processor; 4. a computer program product; 41. a signal bearing medium; 42. a computer readable medium; 43. a computer recordable medium; 44. a communication medium; 45. program instructions.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1 is a first schematic flow chart of a punching classification method according to an embodiment of the present disclosure, and fig. 2 is a second schematic flow chart of a punching classification method according to an embodiment of the present disclosure, and with reference to fig. 1 and fig. 2, the embodiment of the present disclosure includes the following steps:
s110: and acquiring parameter information of the punched hole and parameter information of the machined part.
The parameter information of the punched hole and the parameter information of the processed part comprise a punched hole number, a punched hole coordinate, the maximum distance from a punched hole centroid to a hole edge, a punched hole centroid normal vector, a contour point coordinate and a contour trimming angle. The parameter information of a punching hole comprises a punching hole number, a punching hole coordinate, a maximum distance from a punching hole centroid to a hole edge and a punching hole centroid normal vector, wherein the punching hole coordinate and the punching hole normal vector can be expressed as (x, y, z, u, v, w, r) in a mixed mode, wherein (x, y, z) is a Cartesian coordinate of the punching hole centroid, (u, v, w) is a normal vector of the punching hole centroid on an x, y, z axis, and r is a maximum distance from the punching hole centroid to the hole edge. The parameter information of the machined part comprises the coordinates of the contour points and the trimming angles of the contour points. The profile refers to the edge of the face of the machined part, for example in sheet metal parts, the shape of the sheet metal part is a sheet, so the profile refers to the outer edge of the sheet metal part, also can be said to be the edge of the sheet metal part face. In addition, the trimming process, such as a front trimming or a side trimming, can be known from the trimming angle of the contour points.
S120: and pre-classifying the punched holes according to the parameter information of the punched holes, wherein the pre-classified punched holes comprise a front punched hole and a side punched hole.
Specifically, the normal punch and the side punch are distinguished according to the punch normal vector, while the side punch is continuously classified into the upper punch, the lower punch, the left punch, and the right punch. According to the process rule, in this embodiment, an included angle between a normal vector of the positive punching hole and the positive direction of the z-axis needs to be less than 10 °, so that the following classification rule can be obtained:
positively punching: w is more than or equal to cos10 degrees and is approximately equal to 0.98481;
punching on the upper side: w is less than cos10 degrees and is approximately equal to 0.98481, v is more than or equal to u, and v is more than or equal to-u;
punching the left side: w is less than cos10 degree and is approximately equal to 0.98481, v is more than or equal to u, and v is less than-u;
punching on the lower side: w is more than cos10 degree and is approximately equal to 0.98481, v is more than u, and v is more than-u;
punching the right side: w is less than cos10 degree and is approximately equal to 0.98481, v is less than u, and v is more than or equal to-u.
Therefore, 5 punching types can be distinguished, and in other embodiments, the judgment parameters of punching can be adjusted according to actual conditions and process rules.
S130: and respectively reclassifying the pre-classification middle side punched holes based on the parameter information of the pre-classification middle side punched holes and the parameter information of the processed parts.
The positive punching in the steps is classified, and the side punching is reclassified. Specifically, a first interference relationship table of each side punch and the profile is established based on the punch coordinates, the profile point deburring angle and the maximum distance from the punch centroid to the hole edge of each side punch. The method for judging whether the side punching and the contour process generate interference is as follows:
through the punching coordinates, the euclidean distance between one of the side punched holes and all the contour points is calculated and recorded as j, and the calculation of the euclidean distance is the prior art and is not described herein again. And then judging the trimming process of all the contour points which are in the range of j < delta r and take the punched hole as the center, if the trimming process of the contour points is side trimming, judging that the machining process and the contour process of the punched hole generate interference, and recording the interference in a first interference relation table. δ is an empirical parameter determined by the skilled person, and in this embodiment, the value of δ is taken to be 2 to suit the process rule in this embodiment.
The first interference relationship table in this embodiment is as follows:
and then establishing a second interference relation table between the side punched holes of the same type based on different punched hole vectors of each side punched hole of the same type and the maximum distance from the punching centroid of every two punched holes in the side punched holes of the same type to the hole edge. The specific method comprises the following steps:
calculating the process distance between every two punched holes in the same type of side punched holes, and assuming that two left punched holes P and Q exist, the calculation formula of the process distance is as follows:
wherein, the first and the second end of the pipe are connected with each other,
representing the process distance of the punch hole P and the punch hole Q,
a normal vector of the punch P is indicated,
a normal vector of the punched hole Q is shown,
，
which represent the coordinates of the punch hole Q on the x, y, z axes, respectively, can also be considered as cartesian coordinates of the punch hole centroid of the punch hole Q,
the coordinates of the punched hole P on the x, y and z axes are shown, and may be regarded as the punched shape of the punched hole PThe cartesian coordinates of the heart of the user,
the maximum distances from the punching centroids of the punching holes P and the punching holes Q to the hole edges are respectively represented, h represents the closing height of the die and is set by a technician according to a process rule, and epsilon represents an empirical parameter and is set by the technician according to the process rule. Then, from the punching coordinates, the euclidean distance between the left punched hole P and the left punched hole Q is calculated and is denoted by k. If it is
If k is larger than k, interference will occur between the punching holes P and Q, otherwise, interference will not occur in recording. If n side punches of the same type (such as the left side punch) need to be judged, calculating the process distance and Euclidean distance between every two punches in n x (n-1)/2 left side punches.
The second interference relationship table in this embodiment is as follows:
thus, the first and second interference relationship tables are generated.
And classifying all punched holes in the same side punched holes, firstly disturbing the punched hole numbers of all the punched holes in the side punched holes, regenerating a sequence, classifying according to the sequence, wherein different sequence sequences may cause inconsistency of classification results, such as inconsistent punching numbers in the small classes, or inconsistent small class numbers, and the purpose of disturbing the punched hole numbers is to make the classification more random and improve the accuracy of the classified punched holes. If the current punched hole and the punched hole before the sequence have the same relation in the first interference relation table, namely yes or no, and the relation in the second interference relation table is no, the current punched hole and the punched hole before the sequence are determined to be the same kind and put into the same subclass, otherwise, the current punched hole is automatically classified into one subclass. Taking the first and second interference relationship tables of this embodiment as an example, the relationship between the punch No. 2 and the punch No. 1 in the first interference relationship table is "no", and the relationship between the punch No. 2 and the punch No. 1 in the second interference relationship table is also "no", so that the punch No. 2 is placed in the subclass pre-generated by the punch No. 1, and it is considered that the punch No. 2 and the punch No. 1 exist in the same process property classification, when the punch No. 3 is judged to be compared with all existing subclasses, the punch No. 3 is judged whether to belong to the subclass formed by the punch No. 1 and the punch No. 2, and at this time, the punch No. 3 is compared with all the punch No. 1, for example, compared with the punch No. 1, an inconsistent relationship can be obtained in the first interference relationship table, and when an inconsistent relationship is obtained in the first interference relationship table, the relationship is not continuously judged by the second interference relationship table. Then, comparing punch No. 3 with punch No. 2, an inconsistent relationship is obtained in the first interference relationship table, and punch No. 3 is formed into a subclass separately. In the present embodiment, the first interference relationship table and the second interference relationship table are used to determine the structure of the part, for example, the mechanism trimmed with the trim insert and the mechanism punched with the hole, and the engineer needs to determine whether various mechanisms can be designed and installed on the same die and can perform processing in the same process (i.e., whether tool path interference occurs), so that the engineer can abstract the manner of the above problem as whether the process properties conflict or not, and form the first interference relationship table and the second interference relationship table, and classify and reclassify the side punched holes of the four types, i.e., the left side punched hole, the upper side punched hole, the lower side punched hole and the right side punched hole, according to the relationship in the two interference relationship tables, and form the punched holes with the same process properties into subclasses, thereby making the punched holes in the subclasses not to generate tool path interference, and not to perform processing in the same process due to the influence of contour processing.
After the subclasses are formed, a plurality of sequences are randomly generated, classification is carried out according to the sequence, and finally a result with the least quantity of the subclasses is taken as a classification result of punching holes on the same side class. If 4 punched holes in the left punched holes need to be classified, a plurality of sequences are randomly generated, such as two groups of sequences 1234 and 4321, wherein 4 punched holes in the 1234 sequence are classified into 2 subclasses according to the classification method, and the 4321 sequence is classified into 3 subclasses according to the classification method, and then the results of the 2 subclasses are obtained. In this embodiment, the number of times of generating the sequence is 10, which depends on the actual needs, or only 1 classification may be performed to save the computing resources, which is not strictly specified. And the classification is carried out for multiple times, and finally the side punching subclass classification data with the least subclass number is obtained, so that the classification error caused by single classification is avoided, and the punching classification accuracy is improved. It should be noted that the number of subclasses is positively correlated with the number of parts machining processes, the number of parts machining processes is also positively correlated with the number of dies required by parts machining, and the increase in the number of dies causes the part machining cost to increase abruptly, so that the smaller the number of subclasses is, the lower the part machining cost is while the machining effect is not affected.
When the classification result of a certain type of side punched hole, for example, the left side punched hole, is completed, the classification of the other types of side punched holes (the upper side punched hole, the lower side punched hole, and the right side punched hole) is then performed as above, and the classification of the upper side punched hole, the lower side punched hole, the left side punched hole, and the right side punched hole inner punched hole is finally completed.
S140: and obtaining the positive punching classification data and the reclassified side punching classification data.
Based on the above steps, the punching data of the front punching holes and the punching data of the upper side punching holes, the lower side punching holes, the left side punching holes and the right side punching holes containing a plurality of subclasses are obtained, classification is completed, and the punching holes in each subclass are regarded as the same in process property.
Fig. 3 is a schematic structural diagram of a punching classification system according to an embodiment of the present disclosure, where the punching classification system includes a parameter obtaining unit 21, a calculating unit 22, and an output unit 23. The parameter obtaining unit 21 is configured to obtain parameter information of the punched hole and parameter information of the machined part, where the parameter information of the punched hole and the parameter information of the machined part include a punched hole number, a punched hole coordinate, a maximum distance from a punched hole centroid to a hole edge, a punched hole centroid normal vector, a contour point coordinate, and a contour trimming angle. The parameters may be obtained from a 3D model of the machined part. The calculation unit 22 is configured to presorting the punched holes according to the parameter information of the punched holes, and establishing a first interference relationship table between each side punched hole and the profile based on the parameter information of the side punched holes in the presorting process and the parameter information of the processed part, that is, based on the punching coordinates, the profile point trimming angles of each side punched hole and the maximum distance from the punching centroid of each side punched hole to the hole edge, establishing a second interference relationship table between the same type of side punched holes based on different punching vectors of each side punched hole of the same type and the maximum distance from the punching centroid of each pair of punched holes in the same type of side punched holes to the hole edge, and reclassifying the presorting process of the side punched holes in the presorting process according to the first interference relationship table and the second interference relationship table, where the presorting process includes the front punched holes and the side punched holes. The output unit 23 is configured to obtain and output the normal punching classification data and the reclassified side punching classification data, that is, the normal punching classification data and the side punching subclass classification data with the least number of subclasses of side punches (upper side punch, lower side punch, left side punch, and right side punch) in all directions. The steps of a punching classification method in the embodiment of the present disclosure may be implemented by the punching classification system of fig. 3, for example, the parameter obtaining unit 21 may be configured to perform step S110, the calculating unit 22 may be configured to perform steps S120 and S130, and the output unit 23 may be configured to perform step S140.
Fig. 4 is a schematic structural diagram of an electronic device 3 according to an embodiment of the present invention, and as shown in fig. 4, the electronic device 3 may include: a processor 31, a memory 32, a communication interface 33, and a communication bus 34, one or more of the processors 31.
The following specifically describes each constituent component of the electronic apparatus 3:
the processor 31 is a control center of the electronic device 3, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 31 is a Central Processing Unit (CPU), and may be an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present invention, such as: one or more DSPs, or one or more Field Programmable Gate Arrays (FPGAs).
In a particular implementation, processor 31 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 4, as one embodiment. Also, as an embodiment, the electronic device 3 may include multiple processors, such as the processor 31 and the processor 35 shown in FIG. 4. Each of these processors may be a Single-core processor (Single-CPU) or a Multi-core processor (Multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The Memory 32 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic Disc storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 32 may be self-contained and coupled to the processor 31 via a communication bus 34. The memory 32 may also be integrated with the processor 31.
In particular implementations, memory 32 is used to store data and software programs for implementing the present invention. The processor 31 executes the punch sorting method described in the above embodiments by running or executing the software program stored in the memory 32 and calling the data stored in the memory 32.
The communication interface 33 is a device such as any transceiver, and is used for communicating with other devices or communication Networks, such as a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), a terminal, and a cloud. The communication interface 33 may comprise an acquisition unit (not shown in the figure) to implement the acquisition function.
The communication bus 34 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one line is shown in FIG. 4, but it is not intended that there be only one bus or one type of bus.
Another embodiment of the present invention further provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to execute the punching classification method according to the above-mentioned method embodiment.
In some embodiments, the disclosed methods may be implemented as computer program instructions encoded on a computer-readable storage medium in a machine-readable format or encoded on other non-transitory media or articles of manufacture.
Fig. 5 schematically shows a conceptual partial view of a computer program product 4 provided by an embodiment of the invention, the computer program product 4 comprising a computer program for executing a computer process on a computing device.
In one embodiment, the computer program product is provided using a signal bearing medium 41. The signal bearing medium 41 may include one or more program instructions 45 that, when executed by one or more processors, may provide the functions or portions of the functions described above with respect to fig. 1 or 2. Further, program instructions 45 in FIG. 5 also describe example instructions.
In some examples, signal bearing medium 41 may comprise a computer readable medium 42, such as, but not limited to, a hard disk drive, a Compact Disc (CD), a Digital Video Disc (DVD), a digital tape, a memory, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
In some embodiments, the signal bearing medium 41 may comprise a computer recordable medium 43 such as, but not limited to, memory, read/write (R/W) CD, R/W DVD, and the like.
In some implementations, the signal bearing medium 41 may include a communication medium 44, such as, but not limited to, a digital and/or analog communication medium (e.g., a fiber optic cable, a waveguide, a wired communications link, a wireless communication link, etc.).
The signal-bearing medium 41 may be communicated by a wireless form of communication medium 44, such as a wireless communication medium that complies with the IEEE 802.41 standard or other transmission protocols. The one or more program instructions may be, for example, computer-executable instructions or logic-implemented instructions.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention may be essentially or partially contributed to by the prior art, or all or part of the technical solution may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description is only for the purpose of describing particular embodiments of the present disclosure, so as to enable those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A punch sorting method, comprising:
obtaining parameter information of punching holes and parameter information of machined parts, comprising the following steps: the punching machine comprises a punching number, a punching coordinate, a normal vector of a punching centroid, the maximum distance from the punching centroid to a hole edge, a contour point coordinate and a contour point trimming angle;
the method comprises the steps that punching holes are pre-classified according to parameter information of the punching holes, the pre-classification method divides the punching holes into a front punching hole and a side punching hole according to a punching hole centroid normal vector of each punching hole, and the side punching holes comprise an upper side punching hole, a lower side punching hole, a left side punching hole and a right side punching hole;
the method comprises the following steps of reclassifying the pre-classified middle side punched holes respectively based on parameter information of the pre-classified middle side punched holes and parameter information of processed parts, wherein the reclassification comprises the following steps: x, establishing a first interference relation table of each side punched hole and the profile according to the punching coordinate, the profile point trimming angle and the maximum distance from the punching centroid of each side punched hole to the hole edge of each side punched hole;
y, establishing a second interference relation table between the side punched holes of the same type according to the normal vectors of the centroids of different side punched holes of the upper side punched hole, the lower side punched hole, the left side punched hole and the right side punched hole and the maximum distance from the centroid of every two punched holes in the side punched holes of the same type to the hole edge;
respectively classifying the punched holes in the upper punched hole, the lower punched hole, the left punched hole and the right punched hole according to the first interference relation table and the second interference relation table;
and obtaining the positive punching classification data and the reclassified side punching classification data.
2. A punch hole sorting method according to claim 1, wherein sorting the punch holes in the upper side punch hole, the lower side punch hole, the left side punch hole, and the right side punch hole according to the first interference relationship table and the second interference relationship table, respectively, comprises the steps of:
A. randomly generating a side punching hole sequence of one type of side punching holes based on punching numbers of the side punching holes in the upper side punching holes, the lower side punching holes, the left side punching holes and the right side punching holes;
B. according to the sequence of the side punching hole sequence, the process properties of one punching hole in the side punching hole sequence and all punching holes before the side punching hole sequence are sequentially judged on the basis of the first interference relation table and the second interference relation table, the punching holes with the same process properties are classified into a subclass, and otherwise, the punching holes are classified into a subclass;
C. acquiring and outputting subclass classification data of the side punching;
D. and repeating the steps A-C to obtain and output the subclass classification data of the rest class side punching holes.
3. A method of sorting punched holes according to claim 2, further comprising, before step C:
the steps a-B are performed one or more times,
when the execution times are not one, the following method is executed:
obtaining a plurality of groups of classification data of the small side punching class of a certain class;
and obtaining and outputting one group of side punching subclass classification data with the least subclass number from a plurality of groups of side punching subclass classification data of a certain class.
4. A punch hole sorting system, comprising:
the parameter obtaining unit is used for obtaining parameter information of punching and parameter information of a machined part, and comprises: the punching method comprises the following steps of punching number, punching coordinates, a punching centroid normal vector, the maximum distance from a punching centroid to a hole edge, contour point coordinates and a contour point trimming angle;
the calculation unit is used for pre-classifying the punched holes according to the parameter information of the punched holes, wherein the pre-classified punched holes comprise front punched holes and side punched holes, and the side punched holes comprise upper punched holes, lower punched holes, left punched holes and right punched holes; the method comprises the following steps of reclassifying pre-classified middle side punched holes respectively based on parameter information of the pre-classified middle side punched holes and parameter information of processed parts, wherein the reclassification comprises the following steps: x, establishing a first interference relation table of each side punched hole and the profile according to the punching coordinate, the profile point trimming angle and the maximum distance from the punching centroid of each side punched hole to the hole edge of each side punched hole;
y, establishing a second interference relation table between the side punched holes of the same type according to the normal vectors of the centroids of different side punched holes of the upper side punched hole, the lower side punched hole, the left side punched hole and the right side punched hole and the maximum distance from the centroid of every two punched holes in the side punched holes of the same type to the hole edge;
respectively classifying the punched holes in the upper punched hole, the lower punched hole, the left punched hole and the right punched hole according to the first interference relation table and the second interference relation table, wherein the pre-classified punched holes comprise a front punched hole and a side punched hole;
and the output unit is used for obtaining and outputting the positive punching classification data and the reclassified side punching classification data.
5. A computer storage medium characterized in that the storage medium stores a program or instructions that causes a computer to execute the punch hole sorting method according to any one of claims 1 to 3.
6. An electronic device comprising a communication interface, a processor, a memory, and a bus, wherein the memory is used for storing computer-executable instructions, the processor is connected with the memory through the bus, and when the electronic device is operated, the processor executes the computer-executable instructions stored in the memory, so as to execute the punching classification method according to any one of claims 1 to 3.
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| CN102615170A (en) * | 2012-04-11 | 2012-08-01 | 鹰潭市瑞源微型元件有限公司 | Punching technology |
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