JP2014065059A - Sheet metal working process designing system, and method for the system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a mechanism for supporting a precise working instruction and a sheet metal working efficient and having no returns or mistakes by preparing the step and order for reliable preparations and working data and by managing the same unitarily and feeding the same to the manufacturing site.SOLUTION: A sheet metal working step designing system 1 designs the steps of working a sheet metal. This sheet metal working step designing system 1 comprises a creating portion for creating a sheet metal model BM having the information of an object and the information of works. On the basis of a step master table, moreover, a step template is prepared to make a process design, and the product is made according to the process design.

Description

  The present invention relates to a sheet metal working process design system and method, and more specifically, product shape and process information necessary for manufacturing sheet metal products managed separately by drawings, processing data, and actual product slips, and the process. By building a sheet metal model BM that has both the order and processing data, creating a process and order and processing data that can be surely made while judging whether or not processing is possible, managing it centrally and flowing it to the manufacturing site, The present invention relates to a sheet metal working process design system and a method for supporting an accurate working instruction, efficient and free of rework and mistakes in sheet metal manufacturing.

  Conventionally, there are cases like a), b), c) and d).

  a) A CAD / CAM system (automatic programming system, etc.) for sheet metal processing is mainly used for the purpose of creating NC data for blank processing machines (turret punch press, laser processing machine, etc.) and bending machines. For this reason, information created by the CAD / CAM system is not managed between processes or in other processes (secondary processes such as deburring and tapping, welding / assembling, painting, etc.), so fill in a separate form (actual form). There was a need.

  b) Since the drawings include designer instructions such as tolerances, design intentions, and processing instructions, it was necessary to deliver them together with the actual product slip to the manufacturing site.

  c) Processes required for processing a certain product and their order (process patterns) must be managed by setting CAD / CAM system processing data and actual product slips for each process pattern.

  d) Although the production process can be registered for the product in the production management system, it has been necessary for an experienced worker to determine the necessary process and order while looking at the drawings.

JP 2002-82710 A

  There are the following problems a), b), c) and d).

  a) The sheet metal producer needs to perform what is called the process design in which order the process is performed while looking at the contracted drawings. The result of the study is the result of the CAD / CAM system (automatic programming device, etc.) It is necessary to input the information to a different management method such as an actual item without making a mistake, and if this operation is missed, it causes a processing failure.

  For example, if it is determined that the tapping process is not performed by a blanking machine but a secondary process, only the pilot hole is inserted into the development view on the CAD / CAM system, and the actual product slip is tapped after blanking. It was necessary to input an instruction to that effect.

  b) At the processing site, it was necessary to check the drawings many times to confirm that the intentions and instructions of the designer shown in the order drawing are actually reflected in the product label and NC data.

  c) Processes and order (process pattern) necessary for manufacturing one product, such as a difference between a prototype and a mass-produced product, and a process change according to the operation status of the manufacturing site, are not always constant. It has been necessary to manage a plurality of process patterns for one product by changing the name of a part of the CAD / CAM system for each process pattern and assigning a product tag to the name.

  d) It was difficult for an operator who is not familiar with machining to design a process. It was difficult to verify in advance cases that could not be processed in the normal process order. For example, the fastener process is usually performed before the bending process, but in the case where the fastener interferes with the mold, it is necessary to perform the process after the bending.

  The object of the present invention is to construct a sheet metal model BM having both product shape, process information, its order and processing data necessary for manufacturing a sheet metal product, and a process that can be surely made while judging whether or not processing is possible. By creating the order and processing data, managing them centrally and sending them to the manufacturing site, it is necessary to construct a mechanism that supports sheet metal manufacturing with accurate processing instructions and efficient rework and no mistakes.

The present invention is for solving the above-mentioned problem, and the invention according to claim 1 is a sheet metal working process design system for designing a sheet metal working process,
It has a generation unit that generates a sheet metal model that combines information of things and information of work,
It is a sheet metal working process design system that generates a process template based on a process master table, performs process design, and manufactures a product according to the process design.

  The invention according to claim 2 is the sheet metal working process design system according to claim 1, further comprising a process adaptive processing unit that applies the process of the process template to the sheet metal model.

  The invention according to claim 3 is for executing a production simulation of a product, and in a completed product state, go back in order from the final work, and return to the product state before performing a specific work, The sheet metal working process design system according to claim 2, further comprising a snapshot generation unit that reproduces a state of an object before and after the specific operation is performed.

  According to a fourth aspect of the present invention, the work includes a plurality of steps, the plurality of steps are ordered, and a snapshot is reproduced for each step to determine whether or not processing is possible. This is a sheet metal working process design system.

The invention according to claim 5 is a sheet metal working process design method for designing a sheet metal working process,
The generation unit includes a generation step of generating a sheet metal model having both information of goods and work information,
This is a sheet metal working process design method in which a process template is generated based on a process master table, process design is performed, and a product is manufactured according to the process design.

  The following effects a), b), c), d) and e) are exhibited.

  a) Build a sheet metal model BM of a collection of geometric features and design intent linked to the process. Then, the process application process refers to a process template created from the process master table, and assigns a process for each purpose to the sheet metal model BM.

  Furthermore, one sheet metal model BM can have a plurality of process patterns while detecting shape features to which processes are not applied or applied in duplicate. For this reason, by inputting shape information and processing attributes to the sheet metal model BM, it becomes possible to automatically assign necessary processes and order from the processes owned by the sheet metal producer. Further, a plurality of process patterns corresponding to the purpose can be managed for one sheet metal model BM.

  b) When a new processing technique is established, the information is registered in the processing recipe and used in the process application process. For this reason, there is an effect that process design can be performed without knowing details of a new processing technique.

  c) A sheet metal model BM (snapshot) in accordance with the state of the actual manufacturing process is expressed by suppressing the shape feature of the sheet metal model BM or changing the shape according to the application state of the process. For a CAD / CAM system (such as an automatic programming system), a snapshot immediately before the process, a shape feature to be processed in the process, and a processing attribute are given. For this reason, a more accurate machining simulation is possible, and a process design that can be reliably machined can be performed by accurately verifying whether or not machining is possible. Furthermore, since the work range of each process becomes clear, there is an effect that processing omission and unnecessary work can be prevented.

  d) Machining information that needs to be considered in other processes is stored and used as a machining attribute in the sheet metal model BM. For this reason, it is possible to create more optimal machining data in consideration of other processes.

  e) When making production arrangements in the production management system, the target process pattern is designated from the sheet metal model BM and production arrangements are made. For this reason, the process group taken out from the sheet metal model BM is output to the actual product slip or the terminal at the work site, so that it is possible to accurately convey the process and order information suitable for the purpose to the manufacturing site.

It is the schematic which shows the outline of a sheet-metal-working process design system. It is explanatory drawing explaining a shape feature. It is explanatory drawing explaining the example of a process recipe. It is explanatory drawing explaining a process master table. It is explanatory drawing explaining a process template. It is explanatory drawing explaining a process template. It is explanatory drawing which adds a design intent to a sheet metal model. It is explanatory drawing explaining a file structure. It is explanatory drawing explaining a detailed process sequence. It is explanatory drawing explaining a detailed process sequence. It is explanatory drawing explaining a process application process. It is explanatory drawing explaining a file structure. It is explanatory drawing explaining a multiple process pattern. It is explanatory drawing explaining a multiple process pattern. It is explanatory drawing explaining a multiple process pattern. It is explanatory drawing explaining a snapshot. It is explanatory drawing explaining the completed sheet metal model. It is explanatory drawing explaining the completed sheet metal model. It is explanatory drawing explaining the work and order which were allocated by default. It is explanatory drawing explaining that a fastener interferes by bending. It is explanatory drawing explaining moving the process of a fastener after bending.

  Hereinafter, an embodiment of a sheet metal working process design system 1 according to the present invention will be described with reference to the drawings.

  Please refer to FIG. The sheet metal working process design system 1 constructs a sheet metal model BM, which is three-dimensional model data having both product shape and process information necessary for manufacturing a sheet metal product, its order, and processing data. The process and order that can be surely made while judging whether or not the product can be processed with, and processing data are created, centrally managed and sent to the manufacturing site, accurate processing instructions, efficient, rework and error-free sheet metal It was built to support manufacturing.

  The main configuration of the sheet metal working process design system 1 includes a control unit 2 that controls various types of applications, an input unit 3, and a display unit 4. The control unit 2 includes a sheet metal modeler 2A (which is also a generation unit that generates a sheet metal model BM having both information of goods and work), a process application processing unit 2B, and a database 2C. These are installed and function on a personal computer (PC).

  The database 2C stores a sheet metal model BM.

  The sheet metal model BM will be described in detail. The sheet metal model BM is information having both a thing (a shape of a sheet metal product and a product-part configuration (E-BOM)) and an operation (a process pattern (M-BOM)) corresponding to the process design of the sheet metal. For example, it is managed in the database 2C.

  Generally, a design BOM (E-BOM) has all the parts and quantities required until final completion. There are flat type and hierarchical type. Hierarchical types in E-BOM may be classified as functions.

  Manufacturing BOM (M-BOM) will be described. Production starts based on E-BOM. Since E-BOM does not include a manufacturing method, it is decided which process is to be flown to manufacture and then put into the manufacturing line. At this time, the hierarchical structure made up of E-BOM functions is different from the actual parent-child structure. For this reason, for example, processing such as numbering in the order of assembly is performed for convenience.

  As described above, the sheet metal model BM includes “things” and “work” necessary for actual machining (“manufacturing” with goods and work).

  “Mono” refers to a unit of an object such as a sheet metal part or a non-sheet metal part that is handled as a part at a processing site. “Work” refers to a unit of processing performed in one setup, such as blanking or bending.

  A thing has a plurality of tasks (that is, a plurality of tasks are involved), and the tasks have an order in a thing unit. Among the operations, there are operations that combine a plurality of objects so that they can be handled as larger objects, and operations that become a single break (in-process) in the process. Such work is called a “process” and treated as a thing. Because it is handled as a thing, the "process" requires work.

  An example is shown. As shown in FIG. 1, a work MA1, work SB1, work (process) SC1, and work SC2 are attached to the thing MA1. The thing MB1 has a work (process) SC1, a work SA2, and a work SC3.

  The work SC2 is attached to the mono MC1. The work SC3 is attached to the mono MC2. The work (process) SC1 includes a work SD1 and a work SE1 ("process" is treated as an object).

  On the other hand, the order of work is attached to the mono unit. For example, the work of the object MB1 is performed in the order of the work SA2, the work SC3, and the work SC1.

  The technical contents of important terms in this example are defined below.

  A “shape feature” is a unit of an element made by a sheet metal working process such as a flange, a notch, a hole, molding, bending, and the like, and is an element constituting the sheet metal model BM. Elements that are temporarily attached to the model during the manufacturing process, such as fasteners that are crimped and welded to sheet metal parts, such as spacers and weld nuts, and jigs and vinyl for preventing scratches, are also considered as part of the shape features. This shape feature is abstractly expressed by the type and dimension value (type-dimension) of the shape such as countersunk or counterbore, and is not specific information on machining such as a mold, fastener part type or tool.

  A specific example of the shape feature is shown with reference to FIG. The table FC in which the shape feature is registered has setting fields for setting the type SH, the type code SK, the dimension SP, and the guide diagram GZ.

  The type SH includes burring, tapping, burring tap, round half shear, round embossing, clinching spacer, and weld nut. The type code of the burring is EXT, and dimensions A, h, D and a guide diagram corresponding to the dimensions are set. The tapping type code is TP, and dimensions A and M and a guide diagram corresponding to the dimensions are set.

  The type code of the burring tap is EXTP, and dimensions A, M, h, D and a guide diagram corresponding to the dimensions are set. The type code of the round half shear is HS, and dimensions A and h and a guide diagram corresponding to the dimensions are set. The type code of the round emboss is EMB, and dimensions A, B, h and a guide diagram corresponding to the dimensions are set.

  The type code of the clinching spacer is CST, and dimensions M, D, and L and a guide diagram for the dimensions are set. The kind code of the previous weld nut is WN, and dimensions M, B, H, D and a guide diagram for this dimension are set.

  The “design intention / work instruction” is a designer's intention or work instruction such as tolerance, welding / assembly instruction, deburring / finishing / painting, and processing precautions. These pieces of information are added to the sheet metal model BM and the shape feature. That is, it is information in the sheet metal model BM.

  The “machining attribute” is information determined in the process design and must be taken into consideration in other processes such as a bending die and a butting position. Added to sheet metal model BM and shape features. This is information in the sheet metal model BM.

  The “sheet metal modeler 2A (see FIG. 1)” has a function of constructing a shape feature and constructing a sheet metal model BM. Further, it has a function of adding design intent to the sheet metal model BM and the machining feature. Then, it is mounted on the sheet metal working process design system 1.

  The “process pattern” is information on a process group and its order necessary for manufacturing the sheet metal model BM. One sheet metal model BM can have a plurality of process patterns. This is information in the sheet metal model BM.

  The “sheet metal process design system DB (database)” is a database for managing various parameters and masters necessary for the sheet metal work process design system 1. It is constructed on a storage medium. In this example, it is constructed in the database 2C (see FIG. 1).

  The “process master table” is a sheet metal producer (user) who operates the sheet metal working process design system 1, and is used to perform sheet metal processing such as blank processing, bending processing, tapping, and fastener mounting. It is a list of work (process).

  Then, it includes information such as an arbitrary name of the process (process name KMI), a process type KS such as a blank process and a bending process, a machine name KMS, an outsourcing process GC, an installation location SB, and a person in charge TS. Each process has information about what shape features or design intent can be processed. It is stored in the sheet metal process design system DB.

  The “process template” refers to the process master table and defines a default process combination and order according to the manufacturing intention of the sheet metal producer. Multiple combinations can be registered as process templates.

  For example, a process for trial production and a process for mass production. Further, the process of the production line A, the process of the production line B, and the like. Then, it is stored in the sheet metal process design system DB.

  The “detailed processing procedure table” is a table for defining more detailed processes and processing steps of types-dimensions that are shape features of molding.

  Even for the same shape feature, it is possible to register the process by the material, the plate thickness, and the vertical direction. By having a detailed machining procedure table for each process template, the machining method can be changed for each process template even for the same shape feature. It is stored in the sheet metal process design system DB.

  The “processing recipe” is a database for correctly setting a detailed processing procedure even for an operator who is not familiar with processing.

  Please refer to FIG. For example, for fasteners that are shape features, fastener manufacturer MK, name MS, model number KB, applicable type-dimension TS range, insertion method SW, applicable plate thickness TI, applicable material TZ, below The hole diameter SA, reaming presence / absence RK, and tolerance KS are preset as a database, and a detailed machining procedure is automatically created therefrom. In addition to this, processing recipes are prepared for each type of shape feature, such as burring and countersink diameter. It is stored in the sheet metal process design system DB.

  The “process application process” is a process executed by the process application processing unit 2B (see FIG. 1). The process is automatically or manually applied from the process template to the sheet metal model BM (for example, added as information to the sheet metal model BM). ). It is mounted on the sheet metal working process design system 1.

  “Snapshot” is a process generated by the snapshot generation unit. In the middle of applying a process, it refers to the state and shape of the model on the way. For example, the snapshot after the blank process has a developed shape.

  A “CAD / CAM system (automatic programming device, etc.)” is a system that creates NC programs for blanking machines, bending machines, and welding machines offline. Installed on a personal computer.

  The “production planning / management system” is a system that performs production arrangement, production planning, and progress management in response to a production request. Installed on a personal computer.

  A description will be given of the operation of the apparatus and parts (functions as interrelated actions) as the basis of the sheet metal working process design system 1 configured as described above. Action [1], Action [2], Action [3], Action [4], Action [4-1], Action [4-2], Action [4-3], Action [5], Action [6] , [7], [7-1], [7-2], [7-3], and [8] will be described separately separately.

  Action [1] (basic apparatus / part is “process master table”): All machining processes including the outsourcing process are registered in advance in the process master table KMST.

  Please refer to FIG. For example, items such as a process name KMI, a process type KS, a machine name KMS, an outsourcing GC, an installation location SB, and a person in charge TS are registered in the process master table KMST.

  Here, the process name KMI is data of, for example, a multifunction machine, laser, bending 1, bending 2, press, drill, tap, and fastener attachment. The process type KS is, for example, data of a blank process, a blank process, a bending process, a bending process, a press molding process, a drill process, a tap process, and a fastener process. The machine name KMS registers, for example, data of COMI-1, LASER-1, BEND-1, BEND-2, PRESS-1, None (manual operation), None (manual operation), and PRESS-2.

  For example, all the subcontracting GCs register “No”. The installation location SB registers, for example, data of a mass production factory, a prototype factory, a mass production factory, a prototype factory, a prototype factory, a prototype factory, a prototype factory, and a mass production factory. The person in charge TS registers, for example, data of “Nonaka”, “East”, “Shimizu”, “Tanaka”, “Sato”, “Suzuki”, “Suzuki”, and “Takahashi”.

  Action [2] (Basic equipment / parts are “process template”): In order to efficiently apply the machining process to the sheet metal model BM, the process master table is referred to and the process template is used for trial production or mass production. A default process group and order corresponding to the above are registered.

  Please refer to FIG. On the screen GM, “Prototype” is selected from the group column GP, a required process is selected from the process master column KM, and is registered in the process template column KT. As a result, # 1: press molding, # 2: laser, # 3: drill, # 4: tap, # 5: fastener attachment, # 6: bending 2 are registered in the process template.

  In addition, it is assumed that the blank processing machine requires a secondary processing such as press molding, drilling, and tapping separately because of the laser.

  Please refer to FIG. In the screen GM, “Mass production” is selected from the group column GP, a necessary process is selected from the process master column KM, and it is registered in the process template column KT. As a result, # 1: multifunction machine, # 2: fastener attachment, and # 3: bending 1 are registered.

  Since the blank processing machine is a compound processing machine, it is possible to consolidate processes and no secondary process is specified as in the prototype process template.

  Action [3] (The basic equipment and parts are “Sheet Metal Modeler 2A (see FIG. 1)”): A sheet metal model BM is formed by constructing a shape feature from a drawing, 2D or 3D CAD data entrusted by the sheet metal modeler 2A And add design intent.

  With reference to FIGS. 7 and 8, adding a design intent to the sheet metal model BM and a file structure will be described. The created sheet metal model BM represents an E-BOM.

  As shown in FIG. 7, shape features, design intentions, and the like are added to the sheet metal model BM. As a result, design intentions, work instructions, and the like of the welding SS1, the bolt fastening SS2, the welding SS3, and the bolt fastening SS4 are added as configuration examples of the product / part.

  As shown in FIG. 8, the product is composed of a subassembly, a non-sheet metal product, and two bolts. The subassembly includes a sheet metal part BB1, a sheet metal part BB2, a sheet metal part BB3, and three bolts.

  Action [4] (basic device / part is “process application process”): After the construction of the shape and product-part configuration information of the sheet metal model BM is completed, the process template is referred to and the product is manufactured. Necessary processes and sequences are automatically applied by the process application processing unit 2B or applied manually.

  Action [4-1]: Select which process template is applied to the created sheet metal model BM.

  Action [4-2]: Confirm / update the detailed processing procedure table of the process template as necessary.

  The confirmation of the detailed machining procedure will be described with reference to FIGS.

  Please refer to FIG. On the screen GM, “prototype” is selected from the group column GP, and the detailed processing procedure SK is selected. And the information of each column of material & board thickness ZI, kind-dimension SS, direction HK, #NO, process kind KS, and detailed processing procedure TJ is confirmed.

  EMB-A16B10H4 (round embossing) is a shape feature of molding, but since press molding is set in the process template, press molding can be designated in the detailed processing procedure. Similarly, in TP-A3.7M4 (tap), a drill process and a tap process can be designated after the blank process.

  The detailed machining procedure has an automatic registration function. In the automatic registration, it is possible to refer to the machining recipe and automatically assign necessary processes, machining conditions, and used members to the shape features included in the created sheet metal model BM.

  CST-M3D6.2L10 (Clinching spacer) is a fastener shape feature, but with the automatic registration function, a detailed machining procedure that fits the range of types and dimensions from the machining recipe, that is, after making a pilot hole in the blank process, The fastener process is automatically registered. In addition, a fastener member model number and insertion method adapted to the material and thickness of the sheet metal model BM are also assigned to the fastener process.

  Please refer to FIG. On the screen GM, “Mass production” is selected from the group column GP, and the detailed processing procedure SK is selected. The information of each column of material & board thickness ZI, kind-dimension SS, direction HK, #NO, process kind KS, and detailed processing procedure TJ is confirmed.

  For example, since a multi-function machine capable of forming is not set in the process template of the mass production process, press forming, drilling process and tapping process are not set. Make sure that round embossing and taps are specified to be processed during the blanking process.

  Action [4-3]: The process application processing unit 2B executes the process application process. The process application process is performed by applying the process specified by the selected process template to the sheet metal model BM in the order specified by the process template. Since each process has information on which shape feature or design intent of the sheet metal model BM can be allocated, a necessary process can be automatically allocated to the sheet metal model BM. At this time, the type-dimension registered in the detailed machining procedure table is disassembled into designated processes.

  Please refer to FIG. By the process application process, the sheet metal model BM has an M-BOM in addition to the E-BOM. In FIG. 11, bolt fastening and welding may be included in the design intention and work instruction (see FIG. 7).

  A process adaptation processing unit that executes a process application process that applies the process of the process template to the sheet metal model BM is provided, and the adaptive process is executed.

  The example of FIG. 11 represents the result of applying a prototype process template (see FIG. 5) to the sheet metal model BM, which is only “mono”.

  In the trial process template, press molding is performed before the laser process. In the detailed processing procedure for trial production in FIG. 9, the shape feature of the molded shape: EMB-A16B10H4 (round embossing) is press molding PA01. It is specified to process with. As a result, the press forming process PA01 for processing the EMB-A16B10H4 was automatically assigned to the sheet metal part BB1 before the laser process PA02.

  Further, since the sheet metal part BB3 includes TP-A3.7M4 (tap), the drill process PC02 and the tap process PC03 are automatically assigned after the laser process PC01 in accordance with the detailed processing procedure.

  Please refer to FIG. This is the case of trial production (process pattern). For assembly, there are welding, non-sheet metal parts, and two bolts. For welding, there is a sheet metal part BB1, assembly, and for this assembly, there are a sheet metal part BB2, a sheet metal part BB3, and three bolts.

  The sheet metal part BB1 includes press molding, laser, bending, and welding. The sheet metal part BB2 includes a laser, a drill (reamer), a fastener, and a bend. The sheet metal part BB3 includes a laser, a drill, and a tap.

  On the other hand, by having a plurality of process patterns for one model, it is possible to manage the types and order of processes according to the manufacturing intention.

  Please refer to FIG. 13, FIG. 14, and FIG. As shown in FIG. 13, the sheet metal part BB1 includes a press molding process PA01, a laser process PA02, and a bending process PA03 in the order of execution.

  On the other hand, as shown in FIG. 14, there are a trial process pattern and a mass production process pattern. The prototype sheet metal part BB1 includes press molding, laser, and bending.

  In the case of mass production, the sheet metal part BB1 includes a multifunction machine and bending. That is, as shown in FIG. 15, the sheet metal part BB1 includes a process PA01 and a bending process PA02 of the multifunction machine in the order of execution.

  By making a consideration so that another process is not assigned to the shape feature and design intention to which the process has already been assigned, it is possible to prevent an error in which the process overlaps.

  By detecting a shape feature or design intent in which a process is not assigned even after the application of the process is completed, it is possible to prevent an omission of application of the process.

  In addition, even when operations such as editing / deleting processes are performed, it is possible to detect necessary features without omissions or duplication by detecting shape features or design intents where processes are no longer allocated or processes are allocated in duplicate. It becomes possible to apply.

  By making it possible to apply multiple process patterns to one sheet metal model BM, variations in multiple manufacturing methods for manufacturing the same product, such as trial production and mass production, or production line A and production line B Can be managed in one sheet metal model BM.

  Action [5] (basic device / part is “snapshot”): The sheet metal model BM is created by the process application process of the process adaptation processing unit 2B, and the snapshot generation unit generates a snapshot.

  The state in which the final process is applied to the model is the completed form of the sheet metal model BM, but the shape features and design intentions processed in each process are suppressed on the sheet metal model BM while going back in order from the last process, By changing the shape state, a snapshot that is an intermediate state for each process is generated.

  Although a plurality of processes are included in the work, the processes are also given an order, and a snapshot is reproduced for each process and used for studying whether or not processing is possible.

  Refer to FIG. For example, the work MA1, work SB1, work SC2, and work SC1 are attached to the product MA1 in the order of P1-1, P1-2, P1-3, and P1-4.

  Mono MB1 has work SA2 and work SC1 in order of P2-1 and P2-2. The work MC2 is attached to the mono MC1.

  Here, when the snapshot generation unit generates a snapshot for the operation SB1 (order P1-2), the object between the operation SC2 and the operation SB1 and the object between the operation SB1 and the operation SA1 are reproduced. The

  Action [6] (The basic equipment and parts are “CAD / CAM system (automatic programming equipment, etc.)”: NC data is created by CAD / CAM system (automatic programming equipment, etc.) applied to the sheet metal model BM. If necessary, the CAD / CAM system provides a snapshot immediately before the process is performed and the shape features, process attributes and design intent that must be processed in the process. It is possible to create data without any problems and to simulate machining that accurately reproduces the actual situation.

  Action [7] (Basic equipment / parts are “machining attributes”) Information that must be taken into consideration in other processes among machining information such as tools, order and machining availability in each process is a sheet metal model as machining attributes. Registered in the BM.

  Action [7-1] In the bending process, the information of the bending mold to be used is reflected in the sheet metal model BM, thereby affecting the development view in blank processing.

  [7-2] The position of the butt of bending is reflected in the sheet metal model BM, so that there is no seam in the blanking process.

  Action [7-3] By reflecting the warning that the bending end is turned over in the sheet metal model BM, machining defects are prevented by slitting in the blank machining process.

  Action [8] (basic device / part is “production planning / management system”): The sheet metal model BM for which the process design has been completed is used in the production planning / management system. In response to the production request, a sheet metal model BM for which process design has been completed is selected and production is arranged. When the selected sheet metal model BM has a plurality of process patterns, it is selected which process pattern is used for production. It is efficient by taking out the process and sequence, NC data, etc. optimally designed for processing with the selected process pattern from the sheet metal model BM and giving it to each processing machine, actual product slip, field terminal, etc. Realize manufacturing without errors.

  An example of an actual process design using the snapshot will be described with reference to FIGS. 17, 18, 19, 20 and 21. FIG.

  FIG. 17 shows a completed sheet metal model BM and data structure. This sheet metal model BM includes flanges 1-9 of shape features and bends 1-8. Flange 2 also includes fasteners 1 and 2 of shape features.

  FIG. 18 shows the bending properties of bendings 1 to 8 of the completed sheet metal model BM.

  In the bending 1, the bending direction is “valley”, the bending angle is “0” degrees, and the inside R is “0”. In bending 2, the bending direction is “valley”, the bending angle is “90” degrees, and the inner radius is “0.2”.

  In the bending 3, the bending direction is “mountain”, the bending angle is “90” degrees, and the inside R is “0.2”. In the bending 4, the bending direction is “valley”, the bending angle is “90” degrees, and the inner radius is “0.2”.

  In the bending 5, the bending direction is “mountain”, the bending angle is “90” degrees, and the inside R is “0.2”. In the bending 6, the bending direction is “valley”, the bending angle is “90” degrees, and the inside R is “0.2”. In the bending 7, the bending direction is “valley”, the bending angle is “90” degrees, and the inner radius is “0.2”.

  In the bending 8, the bending direction is “valley”, the bending angle is “90” degrees, and the inside R is “0.2”.

  Refer to FIG. The sheet metal model BM includes data set in each column of a process ID column PID of bending order, a bend ID column BID for identifying bending, a type column TP, a partial angle column PK, a group column GP, and a step column SP.

  The data includes data set in the sequence field SQ, the process ID field PID, and the tool layout field TL regarding the bending process, and includes data set in the sequence field SQ and the process ID field PID regarding the blank process.

  In the file structure, the arrows AR1 and AR2 indicate the bending type of the type column TP. An arrow AR3 indicates a group in the group column GP and a step in the step column SP.

  Refer to FIG. This is a case where the punch P and the fastener F interfere with each other during bending. In the sheet metal model BM, a snapshot is created by clicking the bend ID2. As a result, it can be seen that the fastener F interferes with the punch P due to the bending of the work by the punch P and the die D.

  The sheet metal model BM includes data set in each column of a process ID column PID of bending order, a bend ID column BID for identifying bending, a type column TP, a partial angle column PK, a group column GP, and a step column SP.

  The bending method includes data set in the sequence column SQ, the process ID column PID, and the tool layout column TL, and the blank method includes data set in the sequence column SQ and the process ID column PID.

  In the file structure, an arrow AR4 indicates that it is in the same process. Arrows AR5 and AR6 indicate an assigned bending icon and an unassigned bending icon. An arrow AR7 indicates that the sequence has been changed.

  Refer to FIG. The process of the fastener F is moved to the process after bending. As described above, it was confirmed that the fastener F interferes with the punch P by bending. Therefore, in the sheet metal model BM, in order to avoid interference between the fastener F and the punch P by bending with the punch P and the die D, the fastener F is clicked and moved after bending. As a result, interference is avoided.

  The sheet metal model BM includes data set in each column of a process ID column PID of bending order, a bend ID column BID for identifying bending, a type column TP, a partial angle column PK, a group column GP, and a step column SP.

  The bending method includes data set in the sequence column SQ, the process ID column PID, and the tool layout column TL, and the blank method includes data set in the sequence SQ column and the process ID column PID.

  In the file structure, an arrow AR8 indicates that the order of processing steps has been changed.

  The present invention is not limited to the embodiments of the invention described above, and can be implemented in other modes by making appropriate modifications.

DESCRIPTION OF SYMBOLS 1 Sheet metal processing process design system 2 Computer main body 2A Sheet metal modeler 2B Process application processing part 2C Database 3 Input / output part 4 Display part 5 Shape feature BM Sheet metal model

Claims (5)

In the sheet metal working process design system that designs the sheet metal working process,
It has a generation unit that generates a sheet metal model that combines information of things and information of work,
A sheet metal working process design system characterized in that a process template is generated based on a process master table, process design is performed, and a product is manufactured according to the process design.   The sheet metal working process design system according to claim 1, further comprising a process adaptive processing unit that applies the process of the process template to the sheet metal model.   A product manufacturing simulation is performed. In the completed product state, the product goes back in order from the final work, and returns to the product state before performing the specific work, before and after the specific work is performed. The sheet metal working process design system according to claim 2, further comprising a snapshot generation unit that reproduces the state of the object.   The sheet metal working process according to claim 3, wherein a plurality of processes are included in the work, the plurality of processes are ordered, and a snapshot is reproduced for each process to determine whether processing is possible. Design system. In the sheet metal working process design method for designing the sheet metal working process,
The generation unit includes a generation step of generating a sheet metal model having both information of goods and work information,
A sheet metal working process design method characterized in that, based on a process master table, a process template is generated to perform process design, and a product is manufactured according to the process design.

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