CN115178647B - Punching classification method and system, electronic equipment and storage medium - Google Patents

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

A punching classification method, system, electronic equipment and storage medium

technical field

The present disclosure relates to the technical field of parts processing, and in particular to a punching classification method, system, electronic equipment and storage medium.

Background technique

Punching has always been one of the main processing contents of sheet metal materials. In the existing stamping process design technology for automotive inner panels, there are generally punching process features on the processed parts that need to be processed, and generally arranged by the engineer according to the position of the punching hole, the normal vector of the centroid of the punching hole, and the trimming process of the surrounding contour The punching process.

At present, in order to avoid process interference in the processing of punching process features, engineers have to do a lot of calculations to arrange all the punching processes, which takes a lot of time; at the same time, if the engineer is not skilled enough, it is easy to make mistakes in the judgment of punching, which will lead to stagnation of parts processing and production.

Contents of the invention

In order to solve the above technical problem or at least partly solve the above technical problem, the present disclosure provides a punching classification method, system, electronic device and storage medium.

In a first aspect, the present disclosure provides a punching classification method, including:

Obtain the parameter information of the punching hole and the parameter information of the processed part;

Pre-classify the punching according to the parameter information of the punching, including front punching and side punching;

Based on the parameter information of the side punching holes in the pre-classification and the parameter information of the processed parts, the side punching holes in the pre-classification are reclassified respectively;

The classification data of front punching holes and the classification data of side punching holes after reclassification are obtained.

Further, the parameter information of punching and the parameter information of processed parts include punching number, punching coordinates, normal vector of punching centroid, maximum distance from punching centroid to hole edge, contour point coordinates and contour point correction. edge angle.

Further, the pre-classification includes the following method: according to the punching centroid normal vector of each punching hole, the punching hole is divided into a positive punching hole and a side punching hole, and the side punching hole includes an upper side punching hole, a lower side punching hole, and a side punching hole. Hole, Left Punch, and Right Punch.

Further, the reclassification includes the following methods:

Establish the first interference relationship between each side punching hole and the contour according to the punching coordinates of each side punching hole, contour point coordinates, contour point trimming angle and the maximum distance from the punching centroid of each side punching hole to the edge of the hole surface;

According to the different punching centroid normal vectors of one type of side punching of upper side punching, lower side punching, left side punching and right side punching and the punching shape of two punching holes in the same type of side punching The maximum distance from the center to the edge of the hole establishes the second interference relationship table between the same type of side punching holes;

According to the first interference relationship table and the second interference relationship table, the punching holes in the upper side punching hole, the lower side punching hole, the left side punching hole and the right side punching hole are classified respectively.

Further, according to the first interference relation table and the second interference relation table, respectively classifying the punching holes in the upper punching hole, the lower punching hole, the left punching hole and the right punching hole includes the following methods:

A. Based on the punching number of one type of side punching in the upper side punching, lower side punching, left side punching and right punching, the side punching sequence of this type is randomly generated;

B. According to the order of the above-mentioned side punching sequence of this type, based on the first interference relationship table and the second interference relationship table, the technological properties of a punching hole in this type of side punching hole and all punching holes before this type of sequence are judged sequentially, and the Punching with the same process nature is classified into a small category, and vice versa is a subcategory of its own;

C. Obtain and output the subclass classification data of this type of side punching;

D. Repeat steps A-C to obtain and output the sub-category data of other side punching holes.

Further, before step C, it also includes:

Perform steps A-B one or more times,

When the number of executions is not one, execute the following method:

Obtain multiple groups of side punching sub-category data of a certain type;

Obtain and output a set of side punching subcategory data with the least number of subcategories among multiple sets of side punching subcategory data of a certain category.

In a second aspect, the present disclosure provides a punching classification system, including:

The parameter acquisition unit is used to obtain the parameter information of the punching hole and the parameter information of the processed part;

The calculation unit is used to pre-classify the punching holes according to the parameter information of the punching holes, and reclassify the side punching holes in the pre-classification based on the parameter information of the side punching holes in the pre-classification and the parameter information of the processed parts. Classified punching includes positive punching and side punching;

The output unit is used to obtain and output the classification data of front punching holes and the classification data of side punching holes after reclassification.

In a third aspect, the present disclosure provides a computer storage medium, the storage medium stores a program or an instruction, and the program or instruction causes a computer to execute the punching classification method described in 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. The memory is used to store computer-executed instructions. The processor and the memory are connected through the bus. When the electronic device is running, the processor executes the memory. The stored computer-executable instructions are used to execute the punching classification method described in the first aspect.

Compared with the prior art, the technical solution provided by the present disclosure has the following advantages:

All punching holes are pre-classified into front punching holes and side punching holes, and the side punching holes are reclassified according to the punching processing technology requirements and contour processing technology, and each type of side punching holes (upper side punching holes) is obtained. , lower side punching, left side punching and right side punching), the parts processing requirements of various subclasses are consistent, which makes punching more suitable for parts processing, and also avoids the need for engineers to The problem of process interference caused by poor consideration when arranging the process process greatly saves the workload of the engineer's part process design and improves the efficiency; multiple times according to the number of a certain type of side punching hole, the sequence of side punching holes of this type is randomly generated, Perform multiple classifications, and finally select the classification data of the side punching sub-category with the least number of sub-categories, avoiding the classification error caused by a single classification, and improving the accuracy of punching classification.

Description of drawings

FIG. 1 is a first schematic flow diagram of a punching classification method according to an embodiment of the present disclosure;

FIG. 2 is a second schematic flow diagram of a punching classification method according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural 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 present disclosure;

FIG. 5 is a schematic diagram of a computer storage medium according to an embodiment of the present disclosure.

Among them, 21. Parameter acquisition unit; 22. Calculation unit; 23. Output unit; 3. Electronic equipment; 31. Processor; 32. Memory; 33. Communication interface; 34. Communication bus; 35. Processor; 4. Computer Program product; 41. Signal bearing medium; 42. Computer readable medium; 43. Computer recordable medium; 44. Communication medium; 45. Program instructions.

detailed description

In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

Figure 1 is a schematic flow diagram of a punching classification method described in an embodiment of the present disclosure, and Figure 2 is a schematic flow diagram of a punching classification method described in an embodiment of the present disclosure. The example includes the following steps:

S110: Acquiring punching parameter information and processing part parameter information.

The punching parameter information and the processing part parameter information include punching number, punching coordinates, maximum distance from punching centroid to hole edge, normal vector of punching centroid, contour point coordinates and contour trimming angle. The parameter information of a punching hole includes the punching number, punching coordinates, the maximum distance from the punching centroid to the edge of the hole and the normal vector of the punching centroid. The punching coordinates and the punching normal vector can be mixed and expressed as (x, y, z,u,v,w,r), where (x,y,z) is the Cartesian coordinates of the punching centroid, (u,v,w) is the punching centroid on the x,y,z axis The normal vector of , r is the maximum distance from the centroid of the punching hole to the edge of the hole. The parameter information of the processed part includes the contour point coordinates and the trimming angle of the contour point. The contour refers to the edge of the surface of the processed part. For example, in the sheet metal part, the shape of the sheet metal part is a sheet, so the contour refers to the outer edge of the sheet metal part, which can also be said to be the edge of the sheet metal part. In addition, the trimming process, such as main trimming or side trimming, can be known from the trimming angle of the contour point.

S120: Pre-classify punching holes according to punching parameter information, where the pre-classified punching holes include front punching holes and side punching holes.

Specifically, positive punching and side punching are distinguished according to the punching normal vector, while side punching is further classified into upper side punching, lower side punching, left side punching and right side punching. The principle of distinction is as follows. According to the process rules, in this embodiment, the angle between the normal vector of the positive punching hole and the positive direction of the z-axis needs to be less than 10°, so the following classification rules can be obtained:

Positive punching: w≥cos10°≈0.98481;

Upper side punching: w<cos10°≈0.98481, v≥u, v≥-u;

Left punching: w<cos10°≈0.98481, v≥u, v<-u;

Lower side punching: w<cos10°≈0.98481, v<u, v<-u;

Right punching: w<cos10°≈0.98481, v<u, v≥-u.

Thus, five types of punching can be distinguished. In other embodiments, the determination parameters of punching can be adjusted according to actual conditions and process rules.

S130: Based on the parameter information of the side punching holes in the pre-classification and the parameter information of the processed parts, respectively reclassify the side punching holes in the pre-classification.

The positive punching in the above steps is in its own category, and only the side punching is reclassified. Specifically, based on the punching coordinates of each side punching hole, contour point coordinates, contour point trimming angle and the maximum distance from the punching centroid of each side punching hole to the edge of the hole, the relationship between each side punching hole and the contour is established. The first interference relationship table. The method of judging whether side punching and contouring process interfere is as follows:

Calculate the Euclidean distance between a certain punching hole in the side punching hole and all contour points through the punching coordinates, which is denoted as j. The calculation of the Euclidean distance is a prior art, and will not be repeated here. Next, determine the trimming process centered on the punching hole and satisfy all contour points within the range of j<δr. If the trimming process with contour points is side trimming, then determine the processing technology and contour process of the punching hole. Interference, and recorded in the first interference relationship table. δ is an empirical parameter, which is determined by technical personnel. In this embodiment, the value of δ is 2 to adapt to the process rule in this embodiment.

The first interference relationship table in this embodiment is as follows:

Next, based on the different punching vectors of each side punching hole of the same type and the maximum distance from the punching centroid of two punching holes in the same type of side punching to the edge of the hole, the second interference relationship between the same type of side punching holes is established surface. The specific method is as follows:

Calculate the technological distance between two punching holes in the same type of side punching holes. Assuming there are two left-hand punching holes, P and Q, the formula for calculating the technological distance is as follows:

代表冲孔P和冲孔Q的工艺距离，

表示冲孔P的 法向量，

表示冲孔Q的法向量，

，

分别表示冲孔Q在x,y,z轴上的坐标，也可以认为是冲孔Q的冲孔形心的笛卡尔坐标，

分别表示冲孔P在x,y,z轴上的坐标，也可以认为是冲孔P的冲孔形心的笛卡尔坐 标，

分别表示冲孔P、冲孔Q的冲孔形心到孔边的最大距离，h表示模具闭合高度，由技术 人员根据工艺规则设置，ε表示经验参数，由技术人员根据工艺规则设置。接着通过冲孔坐 标，计算左侧冲孔P和左侧冲孔Q之间的欧几里得距离，记为k。若

大于k，则记冲 孔P、Q之间会产生干涉，否则记录不会产生干涉。若需要判断的同一类侧冲孔（如上述的左 侧冲孔）有n个，则计算n*(n-1)/2次左侧冲孔中两两冲孔间的工艺距离以及欧几里得距离。 in,

Represents the process distance of punching P and punching Q,

Indicates the normal vector of punching P,

Indicates the normal vector of punching Q,

,

Respectively represent the coordinates of the punching Q on the x, y, and z axes, which can also be considered as the Cartesian coordinates of the punching centroid of the punching Q,

Respectively represent the coordinates of the punching P on the x, y, and z axes, which can also be considered as the Cartesian coordinates of the punching centroid of the punching P,

Respectively represent the maximum distance from the punching centroid of punching hole P and punching Q to the edge of the hole, h represents the closed height of the mold, which is set by the technician according to the process rules, and ε represents the empirical parameter, which is set by the technician according to the process rules. Then, through the punching coordinates, calculate the Euclidean distance between the left punching P and the left punching Q, which is denoted as k. like

If it is greater than k, there will be interference between the recording punch holes P and Q, otherwise there will be no interference in the recording. If there are n pieces of the same type of side punching (such as the above-mentioned left punching) that need to be judged, then calculate the process distance between two punching holes in the left side punching for n*(n-1)/2 times and the Euclidean Reid distance.

The second interference relationship table in this embodiment is as follows:

Thus, the first and second interference relationship tables are generated.

Next, classify all the punches in the same type of side punches, first scramble the punch numbers of all the punches in this type of side punches, regenerate a sequence, and classify in order, different sequence order may cause Inconsistencies in the classification results, such as inconsistent numbers of punches within sub-categories, or inconsistent numbers of sub-categories, the purpose of disrupting the punching numbers is to make the classification more random and improve the accuracy of the classification punches. If the relationship between the current punching hole and the previous punching hole in the sequence in the first interference relationship table is the same, that is, both are "yes" or both are "no", and the relationship in the second interference relationship table is "no" , it is determined that the current punching is of the same type as the previous punching of the sequence, and put into the same subclass, otherwise the current punching is a subclass of its own. Taking the first and second interference relationship tables of this embodiment as an example, the relationship between No. 2 punching hole and No. 1 punching hole in the first interference relationship table is "No", and No. 2 punching hole and No. 1 punching hole The relationship in the second interference relationship table is also "No", so the No. 2 punch is put into the pre-generated subclass of the No. 1 punch, and it is considered that the No. 2 punch and the No. 1 punch are stored in the same technological nature Classification, when judging No. 3 punching, No. 3 punching will be compared with all existing subclasses to judge whether No. 3 punching belongs to the subclass formed by No. 1 punching and No. 2 punching. At this time, No. 3 punching Holes will be compared with all punches in punch no.1 and punch no.2, for example punch no.3 compared to punch no.1, you will get inconsistent relationship in the first interference relation table, when in the first When an inconsistent relationship is obtained in the interference relationship table, the second interference relationship table will not be used to continue judging the relationship. Then compare punching hole No. 3 with punching hole No. 2, and an inconsistent relationship will be obtained in the first interference relationship table. At this time, punching hole No. 3 will be separately formed into a small category. In this embodiment, the use of the first interference relationship table and the second interference relationship table is determined by the structure of the part. For example, there is a mechanism for trimming and trimming inserts, and there is a mechanism for punching holes. Engineers need to judge various mechanisms Whether it can be designed and installed on the same mold and whether it can be processed in the same process (that is, whether there will be tool path interference), so the way engineers judge the above problems is abstracted as the conflict of the process nature, and form the first The interference relationship table and the second interference relationship table are classified into four types of side punching holes: left side punching, upper side punching, lower side punching and right side punching according to the relationship in the above two interference relationship tables Carry out reclassification, and form punching holes with the same process nature into sub-categories, so that the punching holes in the sub-category will not interfere with the tool path, and will not be unable to process in the same process due to the influence of contour processing.

After forming the above sub-categories, several sequences are randomly generated and classified in order, and finally the result with the least number of sub-categories is taken as the classification result of the punching of the same side category. For example, there are 4 punching holes in the left punching holes that need to be classified, multiple sequences are randomly generated, such as 1234 and 4321 two sets of sequences, in the 1234 sequence, the 4 punching holes are divided into 2 subcategories according to the above classification method, 4321 The sequence is divided into 3 sub-categories according to the above classification method, and the results of 2 sub-categories will be taken at this time. In this embodiment, the generation times of the sequences are 10 times, which depends on the actual needs, and it is also possible to classify only once to save computing resources, and the times are not strictly regulated. Perform multiple classifications, and finally select the classification data of the side punching sub-category with the least number of sub-categories, avoiding the classification error caused by a single classification, and improving the accuracy of punching classification. It should be noted that the number of sub-categories is positively correlated with the number of parts processing processes, and the number of parts processing processes is also positively correlated with the number of molds required for part processing. The increase in the number of molds will increase the cost of parts processing, so the smaller the number of sub-categories Less makes the cost of parts processing relatively lower while not affecting the processing effect.

When a certain type of side punching is completed, such as the classification results of the left side punching, then the other types of side punching (upper side punching, lower side punching, and right side punching) are classified as above , and finally complete the classification of upper side punching, lower side punching, left side punching and right side punching inner punching.

S140: Obtain the classification data of front punching holes and the classified data of side punching holes after reclassification.

Based on the above steps, the punching data of positive punching, as well as the punching data of upper punching, lower punching, left punching and right punching including multiple sub-categories are obtained, and the classification is completed, and each Punching holes within subclasses are considered to be of the same nature as workmanship.

FIG. 3 is a schematic structural diagram of a punching classification system according to an embodiment of the present disclosure. The punching classification system includes a parameter obtaining unit 21 , a computing unit 22 and an output unit 23 . Among them, the parameter obtaining unit 21 is used to obtain the parameter information of the punching hole and the parameter information of the processed part. Maximum distance and punching centroid normal vector, contour point coordinates and contour trimming angle. The above parameters can be obtained from the 3D model of the processed part. The calculation unit 22 is used to pre-classify the punching holes according to the parameter information of the punching holes, and based on the parameter information of the side punching holes in the pre-classification and the parameter information of the processed parts, that is, based on the punching coordinates and contour point coordinates of each side punching hole , contour point trimming angle and the maximum distance from the punching centroid of each side punching hole to the edge of the hole to establish the first interference relationship table between each side punching hole and the contour, based on the different punching holes of each side punching hole of the same type The vector and the maximum distance from the punching centroid to the hole edge of two punching holes in the same type of side punching holes establish the second interference relationship table between the same type of side punching holes, according to the first interference relationship table and the second interference relationship table The side punching holes in the pre-classification are respectively reclassified, and the pre-classification punching holes include front punching holes and side punching holes. The output unit 23 is used to obtain and output positive punching classification data and reclassified side punching classification data, that is, positive punching classification data and side punching in all directions (upper side punching, lower side punching, left side punching). side punching and right punching) classification data of side punching sub-category with the least number of sub-categories. The steps of a punching classification method in the embodiment of the present disclosure can be realized by the punching classification system in FIG. 23 can be used to execute step S140.

FIG. 4 is a schematic structural diagram of an electronic device 3 provided by an embodiment of the present invention. As shown in FIG. 31 one or more.

Each component of the electronic device 3 is specifically introduced as follows:

Wherein, the processor 31 is the control center of the electronic device 3 , and may be one processor, or may be a general term for multiple processing elements. For example, the processor 31 is a central processing unit (Central Processing Unit, CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention , for example: one or more DSPs, or one or more Field Programmable Gate Arrays (Field Programmable Gate Array, FPGA).

In a specific implementation, as an embodiment, the processor 31 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 4 . Moreover, 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 can 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 (eg, computer program instructions).

The memory 32 may be a read-only memory (Read-Only Memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (Random Access Memory, RAM) or other types that can store information and instructions It can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a compact disc (Compact Disc Read-Only Memory, CD-ROM) or other optical disc storage, optical disc storage ( including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be stored by a computer Any other medium, but not limited to. The memory 32 may exist independently, and is connected with the processor 31 through the communication bus 34 . The memory 32 can also be integrated with the processor 31 .

In a specific implementation, the memory 32 is used for storing the data in the present invention and executing the software program of the present invention. The processor 31 executes the punching classification 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 used for communicating with other devices or communication networks, such as radio access network (Radio Access Network, RAN), wireless local area network (Wireless Local Area Networks, WLAN), terminal, cloud Wait. The communication interface 33 may include an acquisition unit (not shown in the figure) to realize the acquisition function.

The communication bus 34 may be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one line is used in FIG. 4 , but it does not mean that there is only one bus or one type of bus.

Another embodiment of the present invention also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is made to execute the punching classification method described in the above method embodiments.

In some embodiments, the disclosed methods can be implemented as computer program instructions encoded in a machine-readable format on a computer-readable storage medium or 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 present invention, and the computer program product 4 includes a computer program for executing a computer process on a computing device.

In one embodiment, a computer program product is provided using signal bearing media 41 . The signal bearing medium 41 may include one or more program instructions 45 which, when executed by one or more processors, may provide the functions or part of the functions described above with respect to FIG. 1 or FIG. 2 . Additionally, program instructions 45 in FIG. 5 also describe example instructions.

In some examples, signal bearing medium 41 may comprise computer readable medium 42 such as, but not limited to, a hard drive, compact disc (CD), digital video disc (DVD), digital tape, memory, read-only memory (read-only memory) -onlymemory, ROM) or random access memory (random access memory, RAM) and so on.

In some implementations, signal bearing media 41 may comprise computer recordable media 43 such as, but not limited to, memory, read/write (R/W) CDs, R/W DVDs, and the like.

In some implementations, signal bearing medium 41 may include communication media 44 such as, but not limited to, digital and/or analog communication media (eg, fiber optic cables, waveguides, wired communication links, wireless communication links, etc.).

The signal bearing medium 41 may be conveyed by a wireless form of communication medium 44 (eg, a wireless communication medium complying with the IEEE 802.41 standard or other transmission protocol). One or more program instructions may be, for example, computer-executable instructions or logic-implementing instructions.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation or may be integrated into another device, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may be one physical unit or multiple physical units, that is, it may be located in one place, or may be distributed to multiple different places . Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the software product is stored in a storage medium Among them, several instructions are included to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only specific implementation manners of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described 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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