Novel intelligent numerical control machine tool design method
Through intelligent design methods, including structural analysis, wiring planning, and part -time modeling, it solves the problems of unreasonable and frequent maintenance of parts in the design of the existing CNC machine tools, and achieves a more efficient design and maintenance process.
Patent Information
- Application Number
- CN202411437217.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-01-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing CNC machine tool design methods rely on empirical design, resulting in unreasonable parts layout, frequent maintenance, long cycles and high costs.
The new intelligent CNC machine tool design method is adopted, including analyzing the structure of CNC machine tools, establishing a whole machine analysis model, a wiring planning, a three -dimensional module assembly, establishing a working life model and optimizing design solution.
It improves the accuracy and efficiency of CNC machine tool design, simplifies the later maintenance and repair process, and reduces maintenance costs and cycles.
Smart Images
Figure CN119337608A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of numerical control machine tool design, and in particular to a novel intelligent numerical control machine tool design method. Background Art
[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, various control signals are sent by the CNC device to control the movement of the machine tool, and automatically process parts according to the shape and size required by the drawings. After decades of development, the technical level of CNC machine tools has been greatly improved. The functions of domestic CNC machine tool products are becoming more and more perfect, and the specifications are becoming more and more complete from small to large. CNC machine tools are mainly used to process shafts, discs, sleeves and other workpieces with rotating surfaces. They are the most widely used type of machine tools in mechanical manufacturing and repair factories.
[0003] At present, the existing machine tool design methods mainly rely on traditional empirical design methods. The parts of the machine tool are arranged and set up by continuously modifying the existing drawings, comparing with similar machine tools, and relying on previous design experience. Secondly, there will be problems with chaotic wiring in the later stage of machine tool wiring, and the later maintenance of CNC machine tools is carried out on single parts, resulting in frequent maintenance of CNC machine tools, long cycle and high cost. Therefore, a new intelligent CNC machine tool design method is proposed to solve the above problems. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide a new intelligent CNC machine tool design method in view of the deficiencies in the above-mentioned prior art.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a new intelligent CNC machine tool design method, comprising the following steps: S1. Analyze the structure of the CNC machine tool according to the structural scheme in the CNC machine tool design plan; S2. Establish a complete analysis model of CNC machine tools; S3. According to the CNC machine tool design plan, the wiring planning of the CNC machine tool is performed, wherein the wiring planning is performed on the connection between each functional module, and the wiring planning and adjustment are completed according to the detailed constraints and processes of the wiring planning; S4. 3D modeling and assembly of parts of CNC machine tools; S5. Establish a model for estimating the working life of CNC machine tool parts and calculate the maintenance cycle of CNC machine tool parts; S6. Select and optimize the design scheme of CNC machine tools.
[0006] The S1 also includes determining the key parts of key components that are closely related to the CNC machine tool, and establishing a part structure network based on the connection relationship and disassembly relationship between the parts, wherein in the part structure network, the network nodes represent the CNC machine tool parts and fixed parts, and the lines between the nodes represent the detachable physical connections between the parts. The detachable physical connections refer to threaded connections, pin connections and key connections. The fixed parts refer to the non-detachable physical connections between the parts. The non-detachable physical connections refer to welding connections, rivet connections and bonding connections.
[0007] The step S2 of establishing a complete analysis model of a numerically controlled machine tool comprises the following steps: Establish a relationship model between the tolerance of key parts of CNC machine tools and the surface topography error after processing; Collect the key parts tolerance of key components and the surface shape error detection data after processing. Based on the concept of component tolerance and the real law of component motion error, use the actual data obtained in production, use the combination of monotonic function and Fourier series truncation function to establish the relationship model between part tolerance and its surface shape error, and determine the Fourier series truncation order in the model by comparing with the measured data; According to the assembly relationship of each component in the part structure network, the relationship between the part surface topography error and the corresponding CNC machine tool geometric error source parameters is derived, thereby indirectly establishing a relationship model between the tolerance of key components of CNC machine tools and the CNC machine tool geometric error source parameters.
[0008] The wiring planning in S3 includes the following method steps: First, analyze the logic units in the area to be wired, separate all the power supply lines, and use separate wiring to complete the wiring of the power supply lines; Then analyze the power lines and signal lines in the wiring logic unit, separate all the power lines and signal lines, and route them in two parts; All signal lines are processed again, and all signal lines are wired in a twisted manner; After completing the routing of the signal line, the ground line is routed last.
[0009] The wiring planning also includes rewiring and laying shielding, wherein the rewiring is the specific implementation of wiring by rewiring the connection lines of each functional module.
[0010] The shielding is mainly achieved by laying and installing a shielding shell and laying an electromagnetic shielding net.
[0011] The three-dimensional modeling and assembly of the parts of the CNC machine tool in S4 includes the following steps: Carry out 3D modeling of individual parts and draw 3D graphics according to the actual size of the parts of the CNC machine tool; Assembly steps: After 3D modeling of all parts of the CNC machine tool, use the UG 3D platform for virtual assembly. In the environment of the assembly drawing, call in the environment and parts to be assembled, and constrain the position and direction of each part through constraint conditions; Finally, the various components of the CNC machine tool are virtually assembled, and finally the machine tool is assembled as a whole.
[0012] The service life estimation model of CNC machine tool parts in S5 is based on the maintenance cycle of each part, and the parts with similar maintenance cycles are clustered into a module, so that the maintenance cycles of the components inside the module are close, and the maintenance cycles between modules are different. In the later parts maintenance process, the parts in the module that have reached the critical state of failure can be repaired in batches as a whole, eliminating potential fault hazards and extending the service life of the entire CNC machine tool.
[0013] The S6 selects and optimizes the CNC machine tool design scheme, including the following method steps: According to the multiple CNC machine tool design schemes designed, they are ranked by voting, and the CNC machine tool design scheme with the most votes is selected. The selected design scheme can be optimized and modified according to the needs to achieve the purpose of meeting the needs.
[0014] The present invention adopts the above technical solution to bring the following beneficial effects: 1. This new intelligent CNC machine tool design method, by splitting and analyzing the component structure of the designed CNC machine tool, establishes a structural network between parts, and determines the connection relationship between structures, lays the foundation for the establishment of the subsequent CNC machine tool model, improves the efficiency of CNC machine tool model creation, and compares tolerance data between machine tool parts to ensure the accuracy of machine tool part data establishment, reduce errors in part model establishment, improve the accuracy of machine tool design, avoid repetitiveness of subsequent drawing modifications, and shorten the CNC machine tool design cycle.
[0015] 2. The new intelligent CNC machine tool design method designs the internal wiring of the CNC machine tool to make the wiring of the wires inside the machine tool more organized, avoiding the problems of complicated internal wiring and wiring conflicts, providing convenience for the later equipment maintenance and overhaul of the machine tool, and sorting out the maintenance cycles of various parts of the CNC machine tool, clustering parts with similar maintenance cycles, so that batch maintenance can be carried out during the later maintenance of the machine tool parts, avoiding the problem of frequent maintenance caused by maintenance of a single part. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The present invention is a flow chart of the numerical control machine tool design method. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] See also Figure 1 The technical solution provided by the present invention is: a new intelligent CNC machine tool design method, comprising the following steps: S1. According to the structural scheme in the CNC machine tool design scheme, analyze the composition structure of the CNC machine tool, including determining the key parts of the key components that are closely related to the CNC machine tool as a whole, and establishing a part structure network based on the connection relationship and disassembly relationship between the parts. In the part structure network, the network nodes represent the CNC machine tool parts and fixed parts, and the lines between the nodes represent the detachable physical connections between the parts. The detachable physical connections refer to threaded connections, pin connections and key connections. Fixed parts refer to the non-detachable physical connections between the parts. The non-detachable physical connections refer to welding connections, rivet connections and bonding connections.
[0019] S2. Establishing a complete analysis model of a CNC machine tool includes the following steps: Establish a relationship model between the tolerance of key parts of CNC machine tools and the surface topography error after processing; Collect the key parts tolerance of key components and the surface shape error detection data after processing. Based on the concept of component tolerance and the real law of component motion error, use the actual data obtained in production, use the combination of monotonic function and Fourier series truncation function to establish the relationship model between part tolerance and its surface shape error, and determine the Fourier series truncation order in the model by comparing with the measured data; According to the assembly relationship of each component in the part structure network, the relationship between the part surface topography error and the corresponding CNC machine tool geometric error source parameters is derived, thereby indirectly establishing a relationship model between the tolerance of key components of CNC machine tools and the CNC machine tool geometric error source parameters.
[0020] S3. According to the CNC machine tool design plan, the wiring planning of the CNC machine tool is carried out. The wiring planning is to plan the wiring between the functional modules. The wiring planning and adjustment are completed according to the detailed constraints and processes of the wiring planning. Wiring planning includes the following steps: First, analyze the logic units in the area to be wired, separate all the power supply lines, and use separate wiring to complete the wiring of the power supply lines; Then analyze the power lines and signal lines in the wiring logic unit, separate all the power lines and signal lines, and route them in two parts; All signal lines are processed again, and all signal lines are wired in a twisted manner; After completing the routing of the signal line, the ground line is routed last.
[0021] Wiring planning also includes rewiring and laying shielding, and the rewiring is the specific implementation of wiring by rewiring the connections of each functional module.
[0022] Laying shielding mainly includes laying and installing shielding shell and laying electromagnetic shielding net.
[0023] S4. Performing three-dimensional modeling and assembly of parts of CNC machine tools, including the following steps: Carry out 3D modeling of individual parts and draw 3D graphics according to the actual size of the parts of the CNC machine tool; Assembly steps: After 3D modeling of all parts of the CNC machine tool, use the UG 3D platform for virtual assembly. In the environment of the assembly drawing, call in the environment and parts to be assembled, and constrain the position and direction of each part through constraint conditions; Finally, the various components of the CNC machine tool are virtually assembled, and finally the machine tool is assembled as a whole.
[0024] S5. Establish a CNC machine tool parts service life estimation model and calculate the maintenance cycle of CNC machine tool parts. The CNC machine tool parts service life estimation model is based on the maintenance cycle of each part, and the parts with similar maintenance cycles are clustered into a module, so that the maintenance cycles of the components inside the module are close, and the maintenance cycles between modules are different. In the later parts maintenance process, the parts in the module that have reached the critical state of failure can be repaired in batches as a whole, eliminating potential failure hazards and extending the service life of the entire CNC machine tool; S6. Select and optimize the CNC machine tool design scheme, including the following method steps: According to the multiple CNC machine tool design schemes designed, they are ranked by voting, and the CNC machine tool design scheme with the most votes is selected. The selected design scheme can be optimized and modified according to the needs to achieve the purpose of meeting the needs.
[0025] The present invention disassembles and analyzes the component structure of the designed CNC machine tool, establishes a structural network between parts, and determines the connection relationship between structures, thereby laying a foundation for the establishment of a subsequent CNC machine tool model and improving the efficiency of CNC machine tool model creation. In addition, the present invention compares tolerance data between machine tool parts to ensure the accuracy of machine tool part data establishment, reduces errors in part model establishment, improves the accuracy of machine tool design, avoids the repetitiveness of subsequent drawing modifications, and shortens the CNC machine tool design cycle. The present invention designs the internal wiring of the CNC machine tool to make the routing of internal wires in the machine tool more organized, avoids the problems of complex internal wiring and routing conflicts, provides convenience for the later equipment maintenance and overhaul of the machine tool, arranges the maintenance cycles of various parts of the CNC machine tool, and clusters parts with similar maintenance cycles, so that batch maintenance can be performed during the later machine tool parts maintenance process, avoiding the problem of frequent maintenance caused by maintenance of a single part.
[0026] The present invention provides a new intelligent CNC machine tool design method. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.
Claims
1. A new intelligent CNC machine tool design method, characterized in that: The following steps are involved: S1. Analyze the structure of the CNC machine tool according to the structural scheme in the CNC machine tool design plan; S2. Establish a complete analysis model of CNC machine tools; S3. According to the CNC machine tool design plan, the wiring planning of the CNC machine tool is performed, wherein the wiring planning is performed on the connection between each functional module, and the wiring planning and adjustment are completed according to the detailed constraints and processes of the wiring planning; S4. 3D modeling and assembly of parts of CNC machine tools; S5. Establish a model for estimating the working life of CNC machine tool parts and calculate the maintenance cycle of CNC machine tool parts; S6. Select and optimize the design scheme of CNC machine tools.
2. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The S1 also includes determining the key parts of key components that are closely related to the CNC machine tool, and establishing a part structure network based on the connection relationship and disassembly relationship between the parts, wherein in the part structure network, the network nodes represent the CNC machine tool parts and fixed parts, and the lines between the nodes represent the detachable physical connections between the parts. The detachable physical connections refer to threaded connections, pin connections and key connections. The fixed parts refer to the non-detachable physical connections between the parts. The non-detachable physical connections refer to welding connections, rivet connections and bonding connections.
3. A novel intelligent CNC machine tool design method according to claim 2, characterized in that: The step S2 of establishing a complete analysis model of a numerically controlled machine tool comprises the following steps: Establish a relationship model between the tolerance of key parts of CNC machine tools and their surface topography errors after machining; Collect the key parts tolerance of key components and the surface shape error detection data after processing. Based on the concept of component tolerance and the real law of component motion error, use the actual data obtained in production, use the combination of monotonic function and Fourier series truncation function to establish the relationship model between part tolerance and its surface shape error, and determine the Fourier series truncation order in the model by comparing with the measured data; According to the assembly relationship of each component in the part structure network, the relationship between the part surface topography error and the corresponding CNC machine tool geometric error source parameters is derived, thereby indirectly establishing a relationship model between the tolerance of key components of CNC machine tools and the CNC machine tool geometric error source parameters.
4. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The wiring planning in S3 includes the following method steps: First, analyze the logic units in the area to be wired, separate all the power supply lines, and use separate wiring to complete the wiring of the power supply lines; Then analyze the power lines and signal lines in the wiring logic unit, separate all the power lines and signal lines, and route them in two parts; All signal lines are processed again, and all signal lines are wired in a twisted manner; After completing the routing of the signal line, the ground line is routed last.
5. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The wiring planning also includes rewiring and laying shielding, wherein the rewiring is the specific implementation of wiring by rewiring the connection lines of each functional module.
6. A new intelligent CNC machine tool design method according to claim 5, characterized in that: The shielding is mainly achieved by laying and installing a shielding shell and laying an electromagnetic shielding net.
7. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The three-dimensional modeling and assembly of the parts of the CNC machine tool in S4 includes the following steps: Carry out 3D modeling of individual parts and draw 3D graphics according to the actual size of the parts of the CNC machine tool; Assembly steps: After 3D modeling of all parts of the CNC machine tool, use the UG 3D platform for virtual assembly. In the environment of the assembly drawing, call in the environment and parts to be assembled, and constrain the position and direction of each part through constraint conditions; Finally, the various components of the CNC machine tool are virtually assembled, and finally the machine tool is assembled as a whole.
8. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The service life estimation model of CNC machine tool parts in S5 is based on the maintenance cycle of each part, and the parts with similar maintenance cycles are clustered into a module, so that the maintenance cycles of the components inside the module are close, and the maintenance cycles between modules are different. In the later parts maintenance process, the parts in the module that have reached the critical state of failure can be repaired in batches as a whole, eliminating potential fault hazards and extending the service life of the entire CNC machine tool.
9. A novel intelligent CNC machine tool design method according to claim 1, characterized in that: The S6 selects and optimizes the CNC machine tool design scheme, including the following method steps: According to the multiple CNC machine tool design schemes designed, they are ranked by voting, and the CNC machine tool design scheme with the most votes is selected. The selected design scheme can be optimized and modified according to the needs to achieve the purpose of meeting the needs.