Design method suitable for electromagnetic pump low-pressure casting mold filling process

Abstract

The invention provides a design method suitable for an electromagnetic pump low-pressure casting mold filling process. The liquid level position is monitored in real time through the high-temperature laser liquid level distance measuring instrument, the volume of molten aluminum filled into a casting mold cavity can be accurately calculated, and the height controllability of the mold filling process can be guaranteed. And dynamic adjustment is conducted, specifically, the liquid level height reversely calculated according to the casting height-volume distribution diagram is compared with a pressure curve, deviation can be found in time, fine adjustment is conducted on the pressure curve, and then a current curve is adjusted. A visual visual effect is provided by three-dimensional process simulation; and predicting and preventing defects: predicting possible casting defects in advance through simulation. According to the method, for any complex low-pressure casting part, the pressure-time curve of the mold filling process and the current-time curve of the mold filling process of the electromagnetic pump can be drawn according to the characteristics of the part, and therefore the mold filling process of the low-pressure casting part can be accurately controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of electromagnetic pump low-pressure casting, and in particular relates to a design method suitable for a low-pressure casting filling process of an electromagnetic pump. Background Art

[0002] Electromagnetic pump low-pressure casting filling is an advanced metal liquid filling technology, mainly used for precision casting of light alloys such as aluminum alloys. This technology combines the advantages of electromagnetic pumps and low-pressure casting to achieve a more stable and precise metal liquid filling process.

[0003] Electromagnetic pump: It uses electromagnetic force to drive the flow of liquid metal, and can achieve the transmission and pressurization of liquid metal without physical contact. This method reduces the pollution and oxidation problems that may be caused by traditional mechanical pumps. Low-pressure casting: By applying a lower pressure (usually a few to tens of kilopascals) in a closed system, the molten metal can smoothly fill the mold from bottom to top. This method can reduce porosity and inclusion defects and improve the quality of castings. Filling process: The molten metal is fed into the molten pool of the low-pressure casting system under the action of the electromagnetic pump, and then enters the mold under low pressure. This filling method can ensure that the molten metal is evenly distributed, avoid turbulence and splashing, thereby reducing porosity and improving surface finish.

[0004] Advantages of electromagnetic pump low-pressure casting filling: Reduce oxidation and inclusions. Improve the mechanical properties and surface quality of castings. Realize the production of complex-shaped castings. High production efficiency, suitable for mass production. Widely used in the manufacture of engine cylinder blocks, cylinder heads, wheel hubs and other parts in the automotive industry. In low-pressure casting, the existing casting process design method has an ideal filling effect for castings with simple shapes, small heights, and small changes in cross-sectional shapes and areas. However, in actual production, various types of castings have different shapes, and most castings cannot guarantee that their cross-sectional areas are completely consistent throughout the height, and sometimes the difference can be very large. If the same speed is used to fill the mold, it is easy to produce serious turbulence in large cross-sections, which will reduce the quality of the castings.

[0005] Therefore, there is an urgent need for a design method suitable for the low-pressure casting filling process of an electromagnetic pump. Summary of the invention

[0006] The purpose of the invention is to provide a design method suitable for a low-pressure casting filling process of an electromagnetic pump.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A design method suitable for low-pressure casting filling process of electromagnetic pump is carried out according to the following steps: The first step is to make a three-dimensional model of the casting process of the casting, including the casting blank, the pouring system, and the riser; specifically: based on the design model, adjust the model according to the process conditions to generate a three-dimensional process model; build a process specification; carry out different process designs in sequence according to the process specification on the same three-dimensional process model to generate multiple different process design models; display the process design model and the corresponding process information on the output result interface, and the process information data is stored in the database; perform three-dimensional process simulation on the parts or components in the process design model; and finally generate a process release result and an animation with an interactive interface; The second step is to slice and analyze the casting along the Z direction, i.e., the pouring direction, according to the three-dimensional model in the first step, and calculate the height-cross-sectional area distribution diagram Ac=f(z), the height-area overlap ratio distribution diagram αc=f(z), and the height-volume distribution diagram Vc=f(z) of the casting, wherein the slice spacing in the slice analysis is 1-5 mm; The third step is to automatically decompose the casting into several parts, i.e., segments, along the Z direction, i.e., the pouring direction, according to the height-area overlap ratio distribution diagram αc=f(z) and the height-volume distribution diagram Vc=f(z) calculated in the second step, and calculate the volume of each part respectively; the principles of the segmentation are: (a) the position where the cross section undergoes a sudden change, i.e., the area ratio of two adjacent slices is >1.2 or <0.8, (b) the overlap ratio is less than 70%, and the overlap ratio αc=A1 / Amin, wherein A1 is the overlap area of ​​two adjacent slices, and Amin is the smaller area of ​​the two adjacent slices; The fourth step is to generate the pressure-time curve of each part of the casting according to the segmentation results of the casting, and then splice the pressure-time curves of each part together to form the pressure-time curve P(t) of the entire casting; The fifth step is to calculate the cross-sectional area-height distribution diagram Af=f(z) and the volume-height distribution diagram h=f(Vf) of the crucible used for the aluminum alloy low-pressure casting electromagnetic pump. According to the volume-height distribution diagram h=f(Vf), P(t) in the fourth step is corrected to PM(t), PM(t)=P(t)+ΔP, where ΔP=ρaluminumgh, where h is the liquid level depth corresponding to the remaining aluminum liquid volume Vf at time t during the pouring process; Step 6: Convert the PM(t) pressure-time curve of the aluminum alloy low-pressure casting electromagnetic pump into the I(t) current-time curve, and input it into the control computer for use as the low-pressure casting process curve; Step 7: Place the molten aluminum liquid in the crucible of the electromagnetic pump and refine the aluminum liquid until the liquid surface is bright; Step 8: Adjust the temperature of the aluminum liquid to the pouring temperature and keep it warm, turn on the excitation control switch and current control switch on the electromagnetic pump, and suspend the liquid level to the nozzle of the liquid riser; The ninth step is to install the mold, execute the current output according to the low-pressure casting process curve obtained in the sixth step, and perform the low-pressure casting filling process.

[0008] Furthermore, in the seventh step, there is also a step of installing a high-temperature laser liquid level distance meter above the aluminum liquid and turning on the high-temperature laser liquid level distance meter; Furthermore, in the eighth step, when the liquid level is suspended to the nozzle of the liquid riser, the high-temperature laser liquid level rangefinder tests and records the initial position of the liquid level; Furthermore, in the ninth step of executing the low-pressure casting filling process, the volume of aluminum liquid filled into the mold cavity is calculated according to the liquid level position measured in real time by the high-temperature laser liquid level rangefinder, and the liquid level height in the mold is inversely calculated according to the casting height-volume distribution diagram Vc=f(z). The inversely calculated value hc is compared with the pressure curve PM(t). If there is a deviation between the corresponding positions of hc and PM(t), the pressure curve PM(t) is fine-tuned, and then the current curve I(t) is fine-tuned, so that the filling process is carried out according to the curve after real-time fine-tuning until the filling is completed.

[0009] The above process is a key link in the low-pressure casting filling process of electromagnetic pumps, which involves optimizing the filling process through real-time monitoring and adjustment. Main advantages: Precise control: The liquid level position is monitored in real time by a high-temperature laser liquid level rangefinder, and the volume of aluminum liquid filled into the mold cavity can be accurately calculated, which helps to ensure the high controllability of the filling process. Dynamic adjustment: The liquid level height calculated from the height-volume distribution diagram of the casting is compared with the pressure curve, which can timely detect deviations, and fine-tune the pressure curve, thereby adjusting the current curve. This dynamic adjustment capability makes the entire filling process more stable and reduces fluctuations caused by external factors. Improve casting quality: Through precise control and dynamic adjustment, pores, shrinkage holes and other defects in castings can be effectively reduced, and the dimensional accuracy and surface quality of castings can be improved. Reduce scrap rate: Since the deviations that may occur during the filling process can be corrected in time, the generation of unqualified products can be significantly reduced, thereby reducing material waste and production costs. Improve production efficiency: Precise control and rapid response mechanisms can shorten the filling time while ensuring high-quality casting output, thereby improving overall production efficiency. Strong adaptability: This method is suitable for castings of different shapes and sizes. By flexibly adjusting the filling parameters, it can adapt to various complex casting requirements. Through real-time monitoring and feedback adjustment, the electromagnetic pump low-pressure casting filling process can significantly improve casting quality and production efficiency, while also reducing production costs.

[0010] Furthermore, the high-temperature laser liquid level rangefinder in the seventh step is covered with a protective tube, the protective tube extends into the aluminum liquid, and the protective tube is filled with argon gas.

[0011] Furthermore, the specific method of performing three-dimensional process simulation on the components in the three-dimensional process model is to generate a corresponding process model based on the design model, design process steps in the process model, the process steps contain corresponding assembly model features, and then generate animation simulation of the corresponding model parts according to the process, and finally output an interactive animation simulation to simulate the overall assembly process.

[0012] Furthermore, the specific method of performing three-dimensional process simulation on the parts in the three-dimensional process model is: generating a blank corresponding to the process according to the design model, and then processing the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required three-dimensional process simulation of the parts is generated according to the process design features.

[0013] The above-mentioned 3D process simulation method is an effective means to optimize the casting process by simulating the casting process. The main advantages of creating a 3D model of the casting process of castings: Visualization: 3D process simulation provides intuitive visual effects to help engineers better understand the details of the casting process, such as metal flow, solidification behavior, etc. Predict and prevent defects: Through simulation, possible casting defects (such as pores, shrinkage holes, cracks, etc.) can be predicted in advance, and measures can be taken to prevent these problems from occurring, thereby improving the quality of castings. Optimize process parameters: The simulation results can be used to adjust and optimize casting process parameters, such as pouring temperature, pouring speed, mold preheating temperature, etc., to achieve the best casting effect. Reduce trial and error costs: Virtual testing through simulation technology before actual production can greatly reduce the number of physical trials, saving time and cost. Accelerate the product development cycle: Through simulation, the effects of different design schemes can be quickly evaluated, the design iteration and decision-making process can be accelerated, and the product cycle from design to market can be shortened. Improve design flexibility: 3D process simulation allows designers to consider the impact of the casting process in the design stage, so that manufacturing feasibility can be considered during design, improving design flexibility and innovation. Facilitates communication: 3D models make it easier for non-professionals to understand the casting process and technical requirements, and facilitate communication and collaboration across departments. 3D process simulation not only helps improve the quality and production efficiency of castings, but also reduces production costs, and plays an important supporting role in the entire product development cycle.

[0014] Furthermore, the process design model includes a machining process design model, a sheet metal process design model, a casting process design model, an assembly welding process design model, a process information annotation design module and a process resource management module.

[0015] Furthermore, the step module of the process procedure construction model includes a process creation sub-module, a work step creation sub-module, a design feature setting sub-module of the process model and a process attribute setting module. The process creation sub-module is used to create a process; the work step creation sub-module is used to create a work step; the design feature setting sub-module of the process model is used to set the design feature parameters of the process and work step; and the process attribute setting module is used to set the process attribute parameters.

[0016] Furthermore, the 3D process simulation module includes a 3D process part simulation sub-module and a 3D process component simulation sub-module. The 3D process part simulation sub-module generates a blank corresponding to the process according to the design model, and then processes the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required 3D process simulation of the parts is generated according to the process design features; the 3D process component simulation sub-module generates a corresponding process model according to the design model, designs process steps in the process model, the process steps contain corresponding assembly model features, and then generates an animation simulation of the corresponding model part according to the process, and finally outputs an interactive animation simulation to simulate the overall assembly process.

[0017] Compared with the prior art, the advantages and beneficial effects of the present invention are: 1. The present invention uses a high-temperature laser liquid level rangefinder to monitor the liquid level in real time, and can accurately calculate the volume of aluminum liquid filled into the mold cavity, which helps to ensure the high controllability of the filling process. Dynamic adjustment: The liquid level height calculated from the casting height-volume distribution diagram is compared with the pressure curve to detect deviations in time, and to fine-tune the pressure curve, thereby adjusting the current curve.

[0018] 2. The three-dimensional process simulation of the present invention provides intuitive visual effects, helping engineers better understand the details of the casting process, such as metal flow, solidification behavior, etc. Predict and prevent defects: Through simulation, possible casting defects can be predicted in advance.

[0019] 3. In the method of the present invention, for any complex low-pressure casting parts, the pressure-time curve of the filling process and the current-time curve of the electromagnetic pump filling process can be drawn according to the characteristics of the parts, so as to accurately control the filling process. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0021] Example 1 This embodiment provides a design method for a low-pressure casting filling process of an electromagnetic pump, which is characterized by comprising the following steps: The first step is to make a three-dimensional model of the casting process of the casting, including the casting blank, the pouring system, and the riser; specifically: based on the design model, adjust the model according to the process conditions to generate a three-dimensional process model; build a process specification; carry out different process designs in sequence according to the process specification on the same three-dimensional process model to generate multiple different process design models; display the process design model and the corresponding process information on the output result interface, and the process information data is stored in the database; perform three-dimensional process simulation on the parts or components in the process design model; and finally generate a process release result and an animation with an interactive interface; The second step is to slice and analyze the casting along the Z direction, i.e., the pouring direction, according to the three-dimensional model in the first step, and calculate the height-cross-sectional area distribution diagram Ac=f(z), the height-area overlap ratio distribution diagram αc=f(z), and the height-volume distribution diagram Vc=f(z) of the casting, wherein the slice spacing in the slice analysis is 1-5 mm; The third step is to automatically decompose the casting into several parts, i.e., segments, along the Z direction, i.e., the pouring direction, according to the height-area overlap ratio distribution diagram αc=f(z) and the height-volume distribution diagram Vc=f(z) calculated in the second step, and calculate the volume of each part respectively; the principles of the segmentation are: (a) the position where the cross section undergoes a sudden change, i.e., the area ratio of two adjacent slices is >1.2 or <0.8, (b) the overlap ratio is less than 70%, and the overlap ratio αc=A1 / Amin, wherein A1 is the overlap area of ​​two adjacent slices, and Amin is the smaller area of ​​the two adjacent slices; The fourth step is to generate the pressure-time curve of each part of the casting according to the segmentation results of the casting, and then splice the pressure-time curves of each part together to form the pressure-time curve P(t) of the entire casting; The fifth step is to calculate the cross-sectional area-height distribution diagram Af=f(z) and the volume-height distribution diagram h=f(Vf) of the crucible used for the aluminum alloy low-pressure casting electromagnetic pump. According to the volume-height distribution diagram h=f(Vf), P(t) in the fourth step is corrected to PM(t), PM(t)=P(t)+ΔP, where ΔP=ρaluminumgh, where h is the liquid level depth corresponding to the remaining aluminum liquid volume Vf at time t during the pouring process; Step 6: Convert the PM(t) pressure-time curve of the aluminum alloy low-pressure casting electromagnetic pump into the I(t) current-time curve, and input it into the control computer for use as the low-pressure casting process curve; Step 7: Place the molten aluminum liquid in the crucible of the electromagnetic pump and refine the aluminum liquid until the liquid surface is bright; Step 8: Adjust the temperature of the aluminum liquid to the pouring temperature and keep it warm, turn on the excitation control switch and current control switch on the electromagnetic pump, and suspend the liquid level to the nozzle of the liquid riser; The ninth step is to install the mold, execute the current output according to the low-pressure casting process curve obtained in the sixth step, and perform the low-pressure casting filling process.

[0022] In the seventh step, there is also a step of installing a high-temperature laser liquid level distance meter above the aluminum liquid and turning on the high-temperature laser liquid level distance meter; In the eighth step, when the liquid level is suspended to the nozzle of the liquid riser, the high-temperature laser liquid level range finder tests and records the initial position of the liquid level; During the ninth step of executing the low-pressure casting filling process, the volume of aluminum liquid filled into the mold cavity is calculated according to the liquid level position measured in real time by the high-temperature laser liquid level rangefinder, and the liquid level height in the mold is calculated inversely according to the casting height-volume distribution diagram Vc=f(z). The inversely calculated value hc is compared with the pressure curve PM(t). If there is a deviation between the corresponding positions of hc and PM(t), the pressure curve PM(t) is fine-tuned, and then the current curve I(t) is fine-tuned, so that the filling process is carried out according to the curve after real-time fine-tuning until the filling is completed.

[0023] The high-temperature laser liquid level rangefinder in the seventh step is covered with a protective tube, the protective tube extends into the aluminum liquid, and the protective tube is filled with argon gas.

[0024] The specific method of performing three-dimensional process simulation on the components in the three-dimensional process model is to generate a corresponding process model according to the design model, design process steps in the process model, the process steps contain corresponding assembly model features, and then generate animation simulation of the corresponding model parts according to the process, and finally output an interactive animation simulation to simulate the overall assembly process.

[0025] The specific method of performing three-dimensional process simulation on the parts in the three-dimensional process model is: generating a blank corresponding to the process according to the design model, and then processing the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required three-dimensional process simulation of the parts is generated according to the process design features.

[0026] The process design model includes a machining process design model, a sheet metal process design model, a casting process design model, an assembly welding process design model, a process information annotation design module and a process resource management module.

[0027] The step module of the process procedure construction model includes a process creation submodule, a work step creation submodule, a design feature setting submodule of the process model and a process attribute setting module. The process creation submodule is used to create a process; the work step creation submodule is used to create a work step; the design feature setting submodule of the process model is used to set the design feature parameters of the process and work step; and the process attribute setting module is used to set the process attribute parameters.

[0028] The 3D process simulation module includes a 3D process part simulation submodule and a 3D process component simulation submodule. The 3D process part simulation submodule generates a blank corresponding to the process according to the design model, and then processes the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required 3D process simulation of the parts is generated according to the process design features; the 3D process component simulation submodule generates a corresponding process model according to the design model, designs process steps in the process model, the process steps contain corresponding assembly model features, and then generates animation simulation of the corresponding model parts according to the process, and finally outputs interactive animation simulation to simulate the overall assembly process.

[0029] The above is 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 principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A design method for low-pressure casting filling process of electromagnetic pump, characterized in that: The following steps are involved: The first step is to make a three-dimensional model of the casting process of the casting, including the casting blank, pouring system, and riser; specifically: based on the design model, adjust the model according to the process conditions to generate a three-dimensional process model; and build the process regulations; Carry out different process designs in sequence according to the process specifications on the same 3D process model to generate multiple different process design models; The process design model and corresponding process information are displayed on the output result interface, and the process information data is stored in the database; Carry out 3D process simulation on parts or components in the process design model; Finally, the process release results and animations with interactive interfaces are generated; The second step is to slice and analyze the casting along the Z direction, i.e., the pouring direction, according to the three-dimensional model in the first step, and calculate the height-cross-sectional area distribution diagram Ac=f(z), the height-area overlap ratio distribution diagram αc=f(z), and the height-volume distribution diagram Vc=f(z) of the casting, wherein the slice spacing in the slice analysis is 1-5 mm; The third step is to automatically decompose the casting into several parts, i.e., segments, along the Z direction, i.e., the pouring direction, according to the height-area overlap ratio distribution diagram αc=f(z) and the height-volume distribution diagram Vc=f(z) calculated in the second step, and calculate the volume of each part respectively; the principles of the segmentation are: (a) the position where the cross section undergoes a sudden change, i.e., the area ratio of two adjacent slices is >1.2 or <0.8, (b) the overlap ratio is less than 70%, and the overlap ratio αc=A1 / Amin, wherein A1 is the overlap area of ​​two adjacent slices, and Amin is the smaller area of ​​the two adjacent slices; The fourth step is to generate the pressure-time curve of each part of the casting according to the segmentation results of the casting, and then splice the pressure-time curves of each part together to form the pressure-time curve P(t) of the entire casting; The fifth step is to calculate the cross-sectional area-height distribution diagram Af=f(z) and the volume-height distribution diagram h=f(Vf) of the crucible used for the aluminum alloy low-pressure casting electromagnetic pump. According to the volume-height distribution diagram h=f(Vf), P(t) in the fourth step is corrected to PM(t), PM(t)=P(t)+ΔP, where ΔP=ρaluminumgh, where h is the liquid level depth corresponding to the remaining aluminum liquid volume Vf at time t during the pouring process; Step 6: Convert the PM(t) pressure-time curve of the aluminum alloy low-pressure casting electromagnetic pump into the I(t) current-time curve, and input it into the control computer for use as the low-pressure casting process curve; Step 7: Place the molten aluminum liquid in the crucible of the electromagnetic pump and refine the aluminum liquid until the liquid surface is bright; Step 8: Adjust the temperature of the aluminum liquid to the pouring temperature and keep it warm, turn on the excitation control switch and current control switch on the electromagnetic pump, and suspend the liquid level to the nozzle of the liquid riser; The ninth step is to install the mold, execute the current output according to the low-pressure casting process curve obtained in the sixth step, and perform the low-pressure casting filling process.

2. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: In the seventh step, there is also a step of installing a high-temperature laser liquid level distance meter above the aluminum liquid and turning on the high-temperature laser liquid level distance meter.

3. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: In the eighth step, when the liquid level floats to the mouth of the liquid riser, the high-temperature laser liquid level rangefinder tests and records the initial position of the liquid level.

4. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: During the ninth step of executing the low-pressure casting filling process, the volume of aluminum liquid filled into the mold cavity is calculated according to the liquid level position measured in real time by the high-temperature laser liquid level rangefinder, and the liquid level height in the mold is calculated inversely according to the casting height-volume distribution diagram Vc=f(z). The inversely calculated value hc is compared with the pressure curve PM(t). If there is a deviation between the corresponding positions of hc and PM(t), the pressure curve PM(t) is fine-tuned, and then the current curve I(t) is fine-tuned, so that the filling process is carried out according to the curve after real-time fine-tuning until the filling is completed.

5. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: The high-temperature laser liquid level rangefinder in the seventh step is covered with a protective tube, the protective tube extends into the aluminum liquid, and the protective tube is filled with argon gas.

6. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: The specific method of performing three-dimensional process simulation on the components in the three-dimensional process model is to generate a corresponding process model according to the design model, design process steps in the process model, the process steps contain corresponding assembly model features, and then generate animation simulation of the corresponding model parts according to the process, and finally output an interactive animation simulation to simulate the overall assembly process.

7. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: The specific method of performing three-dimensional process simulation on the parts in the three-dimensional process model is: generating a blank corresponding to the process according to the design model, and then processing the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required three-dimensional process simulation of the parts is generated according to the process design features.

8. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: The process design model includes a machining process design model, a sheet metal process design model, a casting process design model, an assembly welding process design model, a process information annotation design module and a process resource management module.

9. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1 is characterized in that: The step module of the process specification construction model includes a process creation submodule, a work step creation submodule, a process model design feature setting submodule and a process attribute setting module. The process creation submodule is used to create a process; the work step creation submodule is used to create a work step; the process model design feature setting submodule is used to set the design feature parameters of the process and the work step; The process attribute setting module is used to set process attribute parameters.

10. The design method for low-pressure casting filling process of electromagnetic pump according to claim 1, characterized in that: The 3D process simulation module includes a 3D process part simulation submodule and a 3D process component simulation submodule. The 3D process part simulation submodule generates a blank corresponding to the process according to the design model, and then processes the blank according to the process requirements. The processing process corresponds to the design features of the process parts, and the required 3D process simulation of the parts is generated according to the process design features; the 3D process component simulation submodule generates a corresponding process model according to the design model, designs process steps in the process model, the process steps contain corresponding assembly model features, and then generates animation simulation of the corresponding model parts according to the process, and finally outputs interactive animation simulation to simulate the overall assembly process.