Lightweight optimization method for sawing module of metal band sawing machine

Abstract

The invention discloses a lightweight optimization method for a sawing module of a metal band sawing machine, solves the problem that the sawing module of the metal band sawing machine needs to be subjected to quality optimization in the prior art, and has the beneficial effects of higher efficiency, economy and safety. Comprising the steps that an initial model of a metal band sawing machine sawing module is established and simplified, and the initial model of the metal band sawing machine sawing module is obtained; determining a key component of which the weight is to be reduced; performing size optimization on a part of the key components, performing simulation analysis after deleting the corresponding key components in the optimization process, and adjusting weight reduction parameters and performing simulation after balancing the quality and action of the corresponding key components to obtain optimal size parameters of the corresponding key components; carrying out optimization design on the other part of key components from three aspects of positions, sizes and shapes; and comparing the simulation result of the optimization model of the sawing module with the simulation result of the initial model of the sawing module of the metal band sawing machine.

Description

Technical Field

[0001] The present invention relates to the field of metal band sawing machines, and in particular to a lightweight optimization method for the sawing module of a metal band sawing machine. Background Art

[0002] The statements in this part only provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] With the increasing complexity of equipment and the continuous improvement of performance requirements, higher requirements are put forward for the efficient and precision machining of metal materials for its key components. In metal band sawing machines, sawing, as an important link in metal material processing, its efficiency and precision directly affect the machining quality of key components.

[0004] For a long time, in the sawing machine industry, in order to ensure the functionality and stability of equipment, the method of increasing the mass of the sawing machine is usually adopted to improve rigidity, that is, the greater the mass of the sawing machine, the higher the rigidity. However, although this method is effective, it also leads to an increase in the overall weight of the equipment, which not only increases the manufacturing and transportation costs, but also has a certain impact on the operating efficiency. With the urgent growth of the manufacturing industry's demand for green and lightweight, weight reduction design has become an important direction for the structural optimization of sawing machines. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a lightweight optimization method for the sawing module of a metal band sawing machine, which conducts lightweight design on the sawing module and effectively controls costs.

[0006] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0007] A lightweight optimization method for the sawing module of a metal band sawing machine includes the following:

[0008] Establish an initial model of the sawing module of the metal band sawing machine;

[0009] Determine the key components to be weight-reduced, which are divided into the first type of key components and the second type of key components;

[0010] Determine the structural parameters of the key components to be weight-reduced. Optimize the dimensions of the first type of key components. During the optimization process, delete the corresponding key components or adjust the dimensions of the key components. Through the initial model of the sawing module of the metal band sawing machine, conduct simulation analysis under the set external load, and according to the simulation results, analyze and determine the weight reduction plan for the first type of key components; optimize the design of the second type of key components from the aspects of quantity, distribution and dimensions, and through simulation analysis, determine the weight reduction plan for the second type of key components;

[0011] According to the weight reduction solutions for the first type of key components and the second type of key components, a three-dimensional model of the sawing module after lightweight optimization is established, and simulation analysis is carried out. The simulation results are compared with those of the initial model of the sawing module of the metal band sawing machine to verify the feasibility of the weight reduction solutions.

[0012] A lightweight optimization method for the sawing module of a metal band sawing machine as described above divides the key components to be weight-reduced into the first type of key components and the second type of key components according to the mass and function of the key components to be weight-reduced.

[0013] For the first type of key components, according to the mass of each key component, the weight reduction solutions for each key component are determined sequentially through simulation analysis.

[0014] The first type of key components includes the saw frame plate, the first plate cover, and the second plate cover, and the second type of key components includes the rib plate group.

[0015] A lightweight optimization method for the sawing module of a metal band sawing machine as described above, for the first type of key components, after simulation analysis, from the effects of the first type of key components and their dimensions on the strength and stiffness of the sawing module, and on the premise of ensuring that the maximum stress and strain received by the sawing module are not increased, the dimensions of the first type of key components are gradually adjusted to obtain the weight reduction solutions for the first type of key components.

[0016] For the second type of key components, optimization design is carried out from three aspects: their quantity, distribution, and dimensions. On the premise of ensuring that the maximum stress and strain received by the sawing module are not increased, the topology optimization method is used to adjust the configuration and dimensions of the second type of key components to obtain the weight reduction solutions for the second type of key components.

[0017] A lightweight optimization method for the sawing module of a metal band sawing machine as described above, under the same external load, in the initial model of the sawing module of the metal band sawing machine, the dimensions of the saw frame plate are modified, the first plate cover and the second plate cover are sequentially deleted, and simulation analysis is carried out. On the premise of ensuring that the maximum stress and strain received by the sawing module are not increased, the optimized dimensions of the saw frame plate, the first plate cover, and the second plate cover are determined.

[0018] A lightweight optimization method for the sawing module of a metal band sawing machine as described above further includes the following content: Since the mass of the saw frame plate among the saw frame plate, the first plate cover, and the second plate cover is the largest, the thickness of the saw frame plate is first determined, and on the basis of the determined thickness of the saw frame plate, the thicknesses of the first plate cover and the second plate cover are sequentially determined.

[0019] A lightweight optimization method for the sawing module of a metal band sawing machine as described above, the method for determining the thickness of the saw frame plate includes the following content:

[0020] With the goal of weight reduction, the thickness of the saw frame board is reduced, resulting in increased deformation and stress. By optimizing the dimensional parameters of the first board cover and the second board cover, the lost stiffness and strength are compensated, and the purpose of reducing the weight of the entire sawing module is achieved in this process;

[0021] Reduce the thickness of the saw frame board at set intervals, analyze the simulation results, and finally select the appropriate thickness of the saw frame board.

[0022] A lightweight optimization method for the sawing module of a metal band sawing machine as described above. After determining the thickness of the saw frame board, determine the initial thickness of the first board cover, increase the thickness of the first board cover at set dimensional intervals, conduct simulation analysis to obtain the simulation results, and determine the thickness of the first board cover based on the simulation results combined with the increase in mass;

[0023] Use the above method to determine the thickness of the second board cover.

[0024] A lightweight optimization method for the sawing module of a metal band sawing machine as described above. The rib plate group includes multiple rib plate groups. Determine which rib plate groups in the sawing module can be modified, delete one or more modifiable rib plate groups in the sawing module, conduct simulation analysis, and considering the role of the rib plate group and whether it can be modified, determine the rib plate groups that need to be retained, deleted, or redesigned under the premise of not increasing the maximum stress and strain borne by the sawing module.

[0025] A lightweight optimization method for the sawing module of a metal band sawing machine as described above. Optimize the design of the rib plate group with relatively large influence, set the rib plates in the corresponding rib plate group to a honeycomb rib plate structure imitating a honeycomb. On the basis of the honeycomb rib plate structure, add V-shaped corner rib plates, and arrange one side of the honeycomb rib plate structure and the corner rib plates in a triangular pattern, and conduct simulation analysis.

[0026] A lightweight optimization method for the sawing module of a metal band sawing machine as described above. The establishment of the initial model of the sawing module of the metal band sawing machine includes the following contents:

[0027] Define the material of the sawing module, fill all the threaded holes in the sawing module, select tetrahedral meshes with a grid unit size of the set length to mesh the sawing module, and determine all the contact types in the sawing module;

[0028] Apply working loads to the sawing module and set the fixed support surface;

[0029] Set parameters for the initial model of the metal band sawing machine's sawing module, delete the accessory components of the sawing module one by one, and conduct simulation analysis after deletion. On the premise of ensuring that the maximum stress and strain on the sawing module do not increase, analyze the influence of a single accessory component on the sawing module, and delete the accessory components whose change values of total deformation and total strain before and after the simulation results are within the set range to obtain the initial model of the metal band sawing machine's sawing module.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1) In the present invention, the model of the sawing module is simplified, the key components to be weight-reduced are determined, the key components to be weight-reduced are classified, the size of the first type of key components is optimized, and the second type of key components are optimized and designed from three aspects: quantity, distribution, and size. According to the weight-reduction schemes of the first type of key components and the second type of key components, a three-dimensional model of the sawing module after lightweight optimization is established and simulation analysis is carried out. The simulation results are compared with the simulation results of the initial model of the metal band sawing machine's sawing module to verify the feasibility of the weight-reduction scheme. The overall optimization idea is simple, and on the premise of ensuring that the structural stiffness and strength do not decrease, the quality of the key components to be reduced is effectively controlled, making the overall sawing module more efficient, economical, and safe.

[0032] 2) In the present invention, for the key components to be weight-reduced, the key components are divided according to the mass and function of each key component. For the first type of key components with large mass and large function, only the size is optimized to achieve the purpose of reducing the structural weight and manufacturing cost on the premise of ensuring that the stiffness and strength do not decrease for the sawing module. For the second type of key components, they can be optimized and designed from three aspects: quantity, distribution, and size. In this way, the evolutionary optimization process ensures the reliability of the lightweight optimization scheme.

[0033] 3) In the present invention, for the sawing module of the band sawing machine, with the goal of weight reduction, considering the relative sizes of the masses of the saw frame plate, the first plate cover, and the second plate cover, the first idea is to reduce the thickness of the saw frame plate with the largest mass and increase the thickness of the first plate cover and the second plate cover with smaller masses to maintain the overall structural stiffness and strength without decrease; on the basis of determining the thickness of the saw frame plate, the thicknesses of the first plate cover and the second plate cover are determined in turn to ensure that the results after each optimization are reliable and better in terms of weight reduction design.

[0034] 4) In the present invention, for the improvable rib plate group, the rib plates in the rib plate group are redesigned into a honeycomb rib plate structure imitating a honeycomb. On the basis of the honeycomb rib plate structure, the V-shaped corner rib plates are extended. One side of the honeycomb rib plate structure and the corner rib plates are arranged in a triangular shape, increasing the structural stability, and verifying that the bionic rib plate group has obvious effects in improving the stiffness and strength of the sawing module. Description of the Drawings

[0035] The accompanying drawings of the specification, which form a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0036] Figure 1 It is a flowchart of a lightweight optimization method for a sawing module of a metal band sawing machine according to one or more embodiments of the present invention.

[0037] Figure 2 It is a schematic diagram of the main structure of a sawing machine module in the prior art.

[0038] Figure 3 It is a schematic diagram of the arrangement of stiffener groups in a sawing machine module in the prior art.

[0039] Figure 4 It is a schematic diagram of the optimization of the column sleeve stiffener group in a lightweight optimization method for a sawing module of a metal band sawing machine according to one or more embodiments of the present invention.

[0040] Figure 5 It is a schematic diagram of the connection between a honeycomb stiffener structure and a corner stiffener in a lightweight optimization method for a sawing module of a metal band sawing machine according to one or more embodiments of the present invention.

[0041] In the figure: The distances or sizes between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration.

[0042] Among them: 1. Second plate cover, 2. Saw frame cross plate, 3. First plate cover, 4. Saw frame plate, 5. Similar to a rice-shaped stiffener group, 6. Right-side stiffener group, 7. Column sleeve stiffener group, 8. Honeycomb stiffener, 9. Corner stiffener. Detailed implementation manners

[0043] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0044] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the present invention clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations;

[0045] As introduced in the background art, there is a problem that the sawing module of the existing metal band sawing machine needs to be optimized in terms of quality. To solve the above technical problems, the present invention proposes a lightweight optimization method for the sawing module of a metal band sawing machine.

[0046] In a typical embodiment of the present invention, referring to Figure 1 as shown, a lightweight optimization method for the sawing module of a metal band sawing machine includes the following contents:

[0047] 1) Establish an initial model of the sawing module of the metal band sawing machine;

[0048] 2) Determine the key components to be weight-reduced, and classify the key components to be weight-reduced. The first type is the key components that can be optimized in terms of size, and the second type is the key components that can change the quantity, distribution, and size;

[0049] 3) Determine the structural parameters of the key components to be weight-reduced, optimize the sizes of the first type of key components. During the optimization process, delete the corresponding key components or adjust the sizes of the key components, and perform simulation analysis through the initial model of the sawing module of the metal band sawing machine under the set external load. According to the simulation results, analyze and determine the weight reduction plan for the first type of key components; optimize the design of the second type of key components from the aspects of quantity, distribution, and size, and determine the weight reduction plan for the second type of key components through simulation analysis;

[0050] 4) According to the weight reduction plans of the first type of key components and the second type of key components, establish a three-dimensional model of the sawing module after lightweight optimization, perform simulation analysis, compare the simulation results with the simulation results of the initial model of the sawing module of the metal band sawing machine, and verify the feasibility of the weight reduction plan. If it is feasible, perform quality according to the above weight reduction plan. If it is not feasible, repeat the above steps.

[0051] Among them, establishing the initial model of the sawing module of the metal band sawing machine includes the following contents:

[0052] 1-1) Define the material of the sawing module (Q235A carbon structural steel can be selected), and fill all the threaded holes in the sawing module. Select a tetrahedral mesh with a mesh unit size of 39 mm to divide the mesh of the sawing module. All the contact types in the sawing module are mainly bonded and solder joint contacts. Set the contact between the saw frame cross plate and the first plate cover as a solder joint contact, and the rest are bonded contacts;

[0053] For the sawing module, the external force comes from the pressure F of the band saw blade on the band saw wheel under working conditions (and the contact surface is half of the outer surface of the band saw wheel). The load m during actual operation is 9 t (tons). According to F = ma and P = F / S, the gravitational acceleration a is taken as 9.8 m / s 2 and the semi-circular area S of the band saw wheel is 8.6×10 -2 m2 The pressure P corresponding to 9 t (ton) is approximately 1 Mpa.

[0054] 1-2) Apply gravitational acceleration, a uniform load (semicircular surface) of 1 Mpa, and set a fixed support surface to the entire sawing module;

[0055] 1-3) Set the structural parameters of the model of the sawing module of the metal band sawing machine in the finite element simulation analysis software, delete the accessory components of the sawing module one by one, and delete the accessory components on the premise of ensuring that the maximum stress and strain received by the sawing module are not increased, so as to obtain the initial model of the sawing module of the metal band sawing machine.

[0056] It should be explained that after obtaining the initial model of the sawing module of the metal band sawing machine, in order to eliminate the influence of the number of meshes on the simulation results, a convergence analysis is carried out. Starting from 150,000 meshes, the number of meshes is increased by 100%. Finally, when the number of meshes reaches 1.2 million, 2.4 million, and 4.8 million, the changes in deformation, strain, and stress are all within 5%. At this time, it is considered that the simulation results reach convergence, and the number of meshes has little influence on the simulation results. Finally, 2.4 million meshes are selected for weight reduction analysis, and the mesh size is 12.42 mm at this time.

[0057] In this embodiment, according to the mass and function of the key components to be weight-reduced, the key components to be weight-reduced are divided into the first type of key components and the second type of key components; for the first type of key components, according to the mass of each key component, the weight reduction scheme of each key component is determined in turn through simulation analysis; the first type of key components includes the saw frame plate, the first plate cover, and the second plate cover, and the second type of key components includes the rib plate group.

[0058] Specifically, referring to Figure 2 As shown, for the sawing module, including the saw frame plate 4, the first plate cover 3, the second plate cover 1, and the saw frame cross plate 2, first determine the key components to be weight-reduced, specifically including the saw frame plate 4, the first plate cover 3, the second plate cover 1, and the rib plate group. Those with relatively large mass and great function (playing a major supporting role in the sawing module) are divided into the first type of key components, including the saw frame plate 4, the first plate cover 3, and the second plate cover 1, and the size of the first type of key components is optimized; for the second type of key components, the rib plate group, which has a small mass and an auxiliary supporting function, is optimized and designed from three aspects: its quantity, distribution, and size. On the premise of ensuring that the maximum stress and strain received by the sawing module are not increased, the topology optimization method is used to adjust the configuration and size of the second type of key components to obtain the weight reduction scheme of the second type of key components.

[0059] For step 3), under the same external load, in the initial model of the metal band sawing machine sawing module, modify the size of the saw frame plate, and sequentially delete the first plate cover and the second plate cover, conduct a simulation analysis, and determine the optimized sizes of the saw frame plate, the first plate cover, and the second plate cover on the premise of ensuring that the maximum stress and strain borne by the sawing module are not increased.

[0060] Specifically, the process of determining the weight reduction plan for the first type of key components includes the following:

[0061] 3-1) Considering the "function" and "mass" of the key components for balanced weight reduction, the saw frame plate 4 is the core component of the entire sawing module and has the largest mass. Guided by weight reduction, first reducing the thickness of the saw frame plate usually leads to increased deformation and stress. By optimizing the thicknesses of the first plate cover 3 and the second plate cover 1, the stiffness and strength lost by reducing the thickness of the saw frame plate are compensated, and in this process, the purpose of reducing the weight of the entire sawing module is achieved. Therefore, gradually reduce the thickness of the saw frame plate at a set interval such as 1 mm, analyze the simulation results, and finally select the appropriate thickness of the saw frame plate.

[0062] 3-2) On the basis of determining the thickness of the saw frame plate 4, first determine the thickness parameter of the first plate cover 3 with the second largest effect, increase the thickness at a size interval such as 0.5 mm at a set interval, and determine the thickness of the first plate cover 3 according to the simulation results of each time, comprehensively considering the increase in the mass of the first plate cover 3.

[0063] 3-3) Under the thickness parameters of the already optimized saw frame plate 4 and the first plate cover 3, increase the thickness at a size interval such as 0.5 mm at a set interval, and determine the thickness of the second plate cover 1 according to the simulation results of each time, comprehensively considering the increase in the mass of the second plate cover 1.

[0064] For the second type of key components, that is, the determination of the weight reduction plan for the rib plate group, includes the following:

[0065] 3-4) The purpose of the optimized design of the rib plate group is to make up for the lack of stiffness and strength caused by weight reduction. It is necessary to determine which rib plate groups cannot be modified and which rib plate groups can be optimized, and then optimize them. Refer to Figure 3 As shown, the rib plate groups of the sawing module include the rice-shaped rib plate group 5, the right rib plate group 6, and the column sleeve rib plate group 7. Considering that the internal rib plates of some rib plate groups are arranged densely and the mass has been controlled within a relatively optimized range and does not need to be modified again, the finally determined modifiable rib plate groups are the rice-shaped rib plate group 5 and the column sleeve rib plate group 7.

[0066] 3 - 5) Delete one or more modifiable rib groups in the sawing module and conduct simulation analysis. On the premise of ensuring that the maximum stress and strain borne by the sawing module are not increased, consider the influence of the deleted rib groups on the sawing module, the role of the rib groups, and whether they can be modified, and determine the rib groups that need to be retained, deleted, or redesigned;

[0067] 3 - 6) Conduct innovative bionic rib design for the column sleeve rib group. Refer to Figure 4 As shown, set the ribs in the corresponding rib group to a honeycomb rib structure imitating a honeycomb, and conduct simulation and comparative analysis on its feasibility.

[0068] 3 - 7) If feasible, refer to Figure 5 As shown, on the basis of the honeycomb rib 8 structure, add V - shaped corner ribs. The two sides of the corner ribs are respectively connected to the side edges of the honeycomb rib 8. One side of the honeycomb rib 8 and the corner rib 9 are arranged in a triangle to increase stability, and conduct simulation analysis on it. Through simulation analysis, verify that the structure of the cooperation between the honeycomb rib 8 and the corner rib 9 is feasible.

[0069] 3 - 8) Add reinforcing plates in the high - stress area in the simulation results. Use U - shaped reinforcing plates to reduce local strain and stress, and use the single - variable method. On the premise of ensuring that the maximum stress and strain borne by the sawing module are not increased, analyze the width parameter and thickness parameter of the reinforcing plates to determine the optimal width and thickness of the reinforcing plates.

[0070] In addition, if the simulation of the honeycomb rib structure imitating a honeycomb is determined to be infeasible, modify the shape of the column sleeve rib group again. Through simulation verification, the honeycomb rib structure imitating a honeycomb provided in this embodiment is feasible.

[0071] In this embodiment, simplify the model of the sawing module, determine the key components to be weight - reduced, classify the key components to be weight - reduced, optimize the dimensions of the first - type key components, optimize the design of the second - type key components from three aspects of quantity, distribution, and dimensions. According to the optimal dimension parameters or the optimization design results, establish an optimization model of the sawing module and conduct simulation analysis, and compare the simulation results with the simulation results of the final simplified model to verify the feasibility of the scheme. The overall optimization idea is simple, and the quality of the key components to be weight - reduced is effectively controlled on the premise of ensuring the structural performance.

[0072] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for lightweight optimization of sawing modules of a metal band saw, characterized in that: It includes the following: Establish the initial model of the sawing module of the metal band saw; Determine the key components to be reduced in weight and classify them into first-category key components and second-category key components; Determine the structural parameters of the key components to be reduced in weight, optimize the size of the first type of key components, delete the corresponding key components or adjust the size of the key components during the optimization process, perform simulation analysis on the initial model of the sawing module of the metal band saw under the set external load, and analyze and determine the weight reduction plan for the first type of key components based on the simulation results; optimize the design of the second type of key components in terms of quantity, distribution and size, and determine the weight reduction plan for the second type of key components through simulation analysis; According to the weight reduction plan of the first and second key components, a three-dimensional model of the sawing module after lightweight optimization is established, and simulation analysis is carried out. The simulation results are compared with the simulation results of the initial model of the sawing module of the metal band saw to verify the feasibility of the weight reduction plan.

2. The method for lightweight optimization of sawing modules of a metal band saw according to claim 1, characterized in that: Classifying the key components to be reduced in weight into the first category of key components and the second category of key components according to the mass and function of the key components to be reduced in weight; For the first type of key components, according to the mass of each key component, the weight reduction plan of each key component is determined in turn through simulation analysis; The first type of key components includes a saw frame plate, a first plate cover and a second plate cover, and the second type of key components includes a rib plate group.

3. A method for lightweight optimization of sawing modules of a metal band saw according to claim 1 or 2, characterized in that: For the first type of key components, after simulation analysis, the size of the first type of key components and their size on the strength and rigidity of the sawing module is gradually adjusted without increasing the maximum stress and strain of the sawing module, so as to obtain a weight reduction solution for the first type of key components; For the second type of key components, the design is optimized from three aspects: quantity, distribution and size. Under the premise of not increasing the maximum stress and strain on the sawing module, the topological optimization method is used to adjust the configuration and size of the second type of key components to obtain the second type of key weight reduction solution.

4. The method for lightweight optimization of sawing modules of a metal band saw according to claim 2, characterized in that: Under the same external load, in the initial model of the sawing module of the metal band saw, the size of the saw frame plate is modified, the first plate cover and the second plate cover are deleted in turn, and a simulation analysis is performed to determine the optimal sizes of the saw frame plate, the first plate cover and the second plate cover without increasing the maximum stress and strain on the sawing module.

5. The method for lightweight optimization of sawing modules of a metal band saw according to claim 2, characterized in that: It also includes the following contents: since the mass of the saw frame board is the largest among the saw frame board, the first board cover and the second board cover, the thickness of the saw frame board is determined first, and then the thickness of the first board cover and the second board cover are determined in turn.

6. The method for lightweight optimization of sawing modules of a metal band saw according to claim 5, characterized in that: The method for determining the thickness of the saw frame plate includes the following contents: Guided by weight reduction, the thickness of the saw frame plate is reduced, resulting in increased deformation and stress. The lost rigidity and strength are compensated by optimizing the size parameters of the first plate cover and the second plate cover. In this process, the weight of the entire sawing module is reduced; Reduce the thickness of the saw frame board according to the set interval, analyze the simulation results, and finally select the appropriate thickness of the saw frame board.

7. The method for lightweight optimization of sawing modules of a metal band saw according to claim 6, characterized in that: After the thickness of the saw frame board is determined, the initial thickness of the first board cover is determined, the thickness of the first board cover is increased according to the set size interval, a simulation analysis is performed to obtain a simulation result, and the thickness of the first board cover is determined according to the simulation result combined with the increase in mass; The thickness of the second plate cover is determined using the above method.

8. The method for lightweight optimization of sawing modules of a metal band saw according to claim 2, characterized in that: The rib plate group includes multiple rib plate groups. Determine which rib plate groups in the sawing module can be modified, delete one or more modifiable rib plate groups in the sawing module, and perform simulation analysis. Under the premise of ensuring that the maximum stress and strain of the sawing module are not increased, consider the role of the rib plate group and whether it can be modified, and determine the rib plate groups that need to be retained, deleted or re-optimized.

9. The method for lightweight optimization of sawing modules of a metal band saw according to claim 8, characterized in that: An optimization design is performed for the rib plate groups with relatively large influence. The rib plates in the corresponding rib plate groups are set to a honeycomb rib plate structure that imitates a honeycomb. On the basis of the honeycomb rib plate structure, a V-shaped bent angle rib plate is added. One side of the honeycomb rib plate structure and the bent angle rib plate are arranged in a triangle, and simulation analysis is performed.

10. The method for lightweight optimization of sawing modules of a metal band saw according to claim 1, characterized in that: The initial model of the sawing module of the metal band sawing machine is established, including the following contents: The material of the sawing module is defined, all threaded holes in the sawing module are filled, a tetrahedral mesh with a mesh unit size of a set length is selected to mesh the sawing module, and all contact types in the sawing module are determined; Applying a working load to the sawing module and setting a fixed support surface; Parameters are set for the initial model of the sawing module of the metal band saw, and the auxiliary components of the sawing module are deleted one by one. After deletion, simulation analysis is performed. Under the premise of ensuring that the maximum stress and strain of the sawing module are not increased, the influence of a single auxiliary component on the sawing module is analyzed, and the auxiliary components whose change values ​​of the total deformation and total strain before and after the simulation results are within the set range are deleted to obtain the initial model of the sawing module of the metal band saw.

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