Method for producing a workpiece, and system
Patent Information
- Application Number
- EP2023711712
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-03-16
- Filing Date
- 2023-03-14
- Publication Date
- 2025-01-22
AI Technical Summary
In the furniture and components industry, there is a challenge in maintaining consistent and accessible data across all facilities and devices involved in production, as existing methods require manual transfer of specific information formats to wood processing machines, leading to potential errors and inefficiencies.
A method that involves providing workpiece information, storing it in a machine-neutral and location-independent file, and performing a transformation operation to generate control commands and handling instructions, ensuring machine capability is included to prevent errors and allowing for machine-independent processing.
This approach simplifies the manufacturing process by ensuring consistent and accurate data transfer, reducing errors and enabling flexible, location-independent access, thus improving the manufacturing consistency and reducing scrap rates.
Smart Images

Figure 1.1
Abstract
Description
[0001] Method for producing a workpiece and system
[0002] Technical area
[0003] The invention relates to a method for producing a workpiece and a system. Such a component can, in particular, comprise wood or wood-based materials.
[0004] State of the art
[0005] One challenge in the value creation process of the furniture and construction components industry is to keep data (workpiece information, process data, etc.) available for all equipment and devices involved in production. Equipment refers to all programs, databases, and machine controls involved in the overall process.
[0006] It is already known to use a machine control program to control a wood processing machine, wherein the processing steps to be carried out (e.g. drilling, milling, etc.) as well as the handling steps for assembling a component are described. However, it is necessary to send information to the machine control program in a specific format. This information or this format must be transferred manually to the wood processing machine so that the information can be processed in a control device of the wood processing machine. In the course of this, a check is carried out to determine whether the wood processing machine can actually carry out the processing steps for production.
[0007] Description of the invention
[0008] The invention is based on the object of simplifying the manufacturing process for producing a workpiece and at the same time making the manufacturing process more consistent.
[0009] The subject matter of claim 1 provides a corresponding method. Further preferred embodiments are explained in the dependent claims and in the following description.
[0010] The method for producing a workpiece comprises the following steps: providing workpiece information and storing a workpiece information file containing the workpiece information, providing information on procedural relationship links and a machine capability, carrying out a transformation operation including the procedural relationship links and the machine capability to convert the information contained in the workpiece information file into instructions, in particular control commands for a processing machine and / or handling instructions, wherein the transformation operation is carried out before or after the workpiece information file is transferred to the processing machine, and manufacturing the workpiece by carrying out a machining process on the basis of the instructions.
[0011] An instruction can be displayed to the machine operator on an output device so that the operator can perform the corresponding processing step according to the instruction. This can also involve a combination of control commands issued by the processing machine and manually executed processing steps that supplement these control commands, for example, in the area of post-processing.
[0012] In particular, workpiece-neutral programming is proposed, which takes process or machine capability (hereinafter also referred to as "machine capability") into account. Workpiece-neutral programming serves to describe the workpiece and component and is independent of subsequent processing. Furthermore, workpiece-neutral programming is machine-neutral and location-independent. For this reason, for example, other processes can be upstream and / or downstream when machining narrow surfaces.
[0013] A machine capability defines the processing steps or processing units available on a processing machine and which can be carried out / combined during processing. This particularly applies to a woodworking machine which has several processing units. During the transformation operation for generating instructions, in particular control commands for a processing machine and / or handling instructions, process-related relationships and the machine capability are included, so that the executability of the instructions is already ensured at this point in time. By including the machine capability, it is avoided that faulty production data or incorrectly delivered
[0014] materials lead to waste.
[0015] A data format for workpiece-neutral programming can be read by all processing machines after the transformation operation has been performed. This does not exclude manual reading or input of information and the resulting processing instructions, but it does not make it necessary. Through a possible connection and transformation to process-engineering process parameters and technical sequences in machines, on units, handheld devices, or manual processing steps, the file can be interpreted by a generator. The process and work sequence generated by the generator remains machine-independent and can therefore be used for various processing machines.
[0016] It is preferred that the provision of workpiece information comprises capturing the workpiece information, reading the workpiece information from a design program or reading the workpiece information from an external system.
[0017] In particular, a workpiece can be measured with sensors to record its dimensions. This allows the actual workpiece dimensions to be recorded and the workpiece to be described precisely. This is particularly advantageous when a processing machine is already equipped with corresponding sensors, or when manual manipulation processes are carried out on a raw workpiece. However, it is also possible to read in the workpiece information from a design program or an external system. This is particularly advantageous when a corresponding database already exists that can be integrated into the further process.
[0018] It is preferred that the workpiece information file be expanded with additional workpiece information before performing the transformation operation, wherein the additional workpiece information particularly relates to manually performed changes to the workpiece. Thus, the workpiece information is continuously updated. According to one embodiment, the workpiece information file is stored in a cloud. Decentralized storage enables location-independent access and thus increases user flexibility.
[0019] It can be provided that the transformation operation, in the course of which the procedural relationship links and the machine capability are included, is carried out in the cloud.
[0020] According to a further embodiment, the workpiece information file is modified based on the machining process. This allows for continuous adaptation of the relevant information so that it can be retained for further processing.
[0021] The machining process may comprise one or more steps selected from: performing a machining operation, applying a coating material, in particular a strip-shaped one, printing a surface.
[0022] The instructions obtained with the transformation operation, especially control commands and / or action instructions, can be machine-specific. In a machine-specific generator, the machine capabilities are stored and are translated and controlled by a postprocessor into automatic machine processes or even manual work sequences.
[0023] The procedural relationship linkages are designed, in particular, as I FTTT applications ("If this, then that"). Thus, the possible applications are virtually unlimited, and the relationship linkages can be used particularly advantageously for a wide variety of productive purposes.
[0024] Furthermore, a computer program is provided, comprising a program code with which the method according to one of the preceding aspects can be carried out, as well as a storage medium with this computer program.
[0025] A system for producing a workpiece comprises: a processing machine, in particular a wood processing machine, a device for providing workpiece information and for storing a workpiece information file containing the workpiece information, as well as a device for carrying out a transformation operation including process-engineering relationship links and a machine capability for converting the information contained in the workpiece information file into instructions, in particular control commands for the processing machine and / or handling instructions, wherein the transformation operation is carried out before or after the transfer of the
[0026] Workpiece information file is transferred to the processing machine. The system is preferably suitable for carrying out a method according to one of the aforementioned aspects.
[0027] To display an instruction, the processing machine can have a display device for displaying instructions so that the operator carries out the corresponding processing step according to the instruction. A display on a mobile device, such as a smartphone or tablet computer, is also possible. Brief description of the drawing
[0028] Further features and advantages will become apparent from the following description with reference to the accompanying drawings.
[0029] Fig. 1 shows a schematic view of an embodiment of the invention
[0030] Description of embodiments
[0031] An exemplary embodiment of a method according to the invention is described with reference to the attached figure.
[0032] During the process, workpiece information is first acquired. The acquisition of workpiece information involves manual acquisition S l , for example, using one or more sensors, reading in the workpiece information from a design program S l ' or reading in workpiece information from an external system S l '' . The acquired parameters include workpiece dimensions, material type, coating material, etc.
[0033] The acquired workpiece information is stored in a workpiece information file (step S2). The workpiece information file is machine-neutral and location-independent. The workpiece information file can, for example, be stored in a cloud and retrieved from there.
[0034] The file format of the workpiece information file is machine-neutral. This means that the file format is such that the file itself forms the basis for subsequent control commands. This ensures a consistent process. Instead of or in addition to control commands, instructions can also be issued as action instructions and brought to the attention of the operator of a processing machine so that they can carry out the corresponding processing step according to the action instructions.
[0035] Furthermore, process-related relationships Fl for the production of a workpiece are provided during the process. For example, the object dependency can contain the following information:
[0036] A further component provides information on a machine capability (F2). This information is also vendor-neutral.
[0037] The workpiece information file can be expanded with additional workpiece information before further processing. Expanding the workpiece information file particularly concerns information about a manually performed change to the workpiece.
[0038] In order to generate control commands, the workpiece information file is processed in the course of a transformation operation in order to generate corresponding control commands (step S3). The transformation operation can take place before or after the workpiece information file is transferred to the processing machine. By linking and transforming it to procedural process parameters and technical sequences in machines, on units, handheld devices or manual processing steps during the transformation operation, the workpiece information file is interpreted to a certain extent; however, the process and work sequence generated from the transformation operation remains machine-independent and can therefore also be used for different machines.
[0039] In the exemplary embodiment, the transformation operation S3 is performed after the workpiece information file has been loaded into a control device of the processing machine. This allows control commands to be generated directly on-site without changing the information base.
[0040] In a further step S4, the workpiece is manufactured by performing a machining operation. During this machining operation, a processing machine can perform one or more machining operations, for example, machining in the area of a narrow surface of a workpiece and subsequently applying a narrow-surface coating material to the previously machined narrow surface.
[0041] For the work step of applying a narrow-surface coating material to the narrow surface of a workpiece, various processing units are controlled. In particular, a narrow-surface coating material is cut to a defined length and an adhesive provided on this narrow-surface coating material is activated or reactivated so that it develops an adhesion-promoting effect. The narrow-surface coating material is applied and pressed onto the corresponding narrow surface of the workpiece using a pressing device. Subsequently, protruding sections of the narrow-surface coating material are removed and the
[0042] Transition area between narrow surface and wide surface of the
[0043] Workpiece smoothed.
[0044] After the machining operation has been completed, the workpiece information file is modified to adapt it to the workpiece being machined and thus provide a basis for further possible machining operations. Purely as an example, the workpiece can be printed with a narrow-surface coating material at a later time using an inkjet printer. For this purpose, the workpiece information file is fed to a machine equipped with the inkjet printer, and the workpiece information file is subjected to a transformation operation to generate control commands for controlling the printing process.
[0045] After the printing process has been completed, the workpiece information file is modified in order to store the information documenting the printing process.
[0046] It will be apparent to those skilled in the art that individual features described in different embodiments may also be implemented in a single embodiment, provided they are not structurally incompatible. Likewise, various features described in a single embodiment may also be provided in multiple embodiments, individually or in any suitable subcombination.
Claims
REQUIREMENTS Method for manufacturing a workpiece, comprising the steps: Providing workpiece information and saving a workpiece information file containing the workpiece information, Providing information on process engineering Relationship links and machine capability, Performing a transformation operation involving process engineering relationships (Fl) and machine capability (F2) to convert the information contained in the workpiece information file into instructions, in particular control commands for a machine tool and / or operating instructions, wherein the transformation operation is performed before or after the workpiece information file is transferred to the machine tool, and Manufacturing the workpiece by performing a machining operation based on the instructions. Method according to claim 1, wherein providing workpiece information comprises manually capturing the workpiece information (S l ), reading the workpiece information from a design program (S l ' ), or reading it from an external system (S l '' ). Method according to any one of the preceding claims, wherein the workpiece information file is further modified before performing the transformation operation. Workpiece information is expanded, with the further Workpiece information, in particular regarding manually performed changes to the workpiece. A method according to any of the preceding claims, wherein the workpiece information file is stored in a cloud. A method according to claim 4, wherein the transformation operation is performed in the cloud. A method according to any of the preceding claims, wherein the workpiece information file is modified based on the machining operation. A method according to any of the preceding claims, wherein the machining operation comprises one or more steps selected from: performing a machining operation, applying a coating material, in particular a strip-shaped one, or printing on a surface. A method according to any of the preceding claims, wherein the instructions obtained from the transformation operation are machine-specific.A method according to any one of the preceding claims, wherein the process-related relationship links (Fl) are configured as an IFTTT application. A computer program comprising program code with which the method according to any one of the preceding claims can be executed. A storage medium containing the computer program according to claim 10. A system for manufacturing a workpiece, comprising: A processing machine, in particular a woodworking machine, a device for providing workpiece information and for storing a workpiece information file containing the workpiece information, and Device for performing a transformation operation involving process engineering relationship links ( Fl ) and a machine capability ( F2 ) to convert the information contained in the workpiece information file into instructions, in particular control commands for the machine tool and / or action instructions, wherein the transformation operation is performed before or after the workpiece information file is transferred to the machine tool.