Program automatic assembly modeling method for tool trundle

Abstract

The invention belongs to the technical field of aviation intelligent manufacturing, and discloses a tool trundle program automatic assembly modeling method, which realizes modeling based on a plurality of tool trundle installation target position point sets and trundle connecting plate control direction point positions by utilizing software development through establishment of a tool trundle reference model based on parameterized adjustment point positions. And the coordinate of the control point position and the coordinate of the target position point are used for adjusting the point position coordinate assignment model of the tool trundle reference model to update, and automatic assembly modeling of the tool trundle program at the target position is achieved. According to the method, the software development difficulty of space coordinate transformation in the tool trundle assembly model is effectively reduced, standardized design is achieved, and the trundle design quality of the aircraft tool is guaranteed. A new solution thought is provided for high-quality, high-efficiency and standardized batch program automatic assembly modeling of position instantiation models of standard parts and finished parts such as trundles in the aircraft structure design and aircraft tool design process.

Description

Technical Field

[0001] The invention application belongs to the technical field of aircraft digital manufacturing in aviation intelligent manufacturing, and specifically relates to a method for automatic assembly modeling of tooling casters. Background Art

[0002] Tooling casters are small in size and highly flexible, and can realize the free movement and rotation of tooling at multiple angles, facilitating the rapid movement of various large and medium-sized aircraft tooling. At the same time, casters with brakes can realize the rapid positioning and placement of tooling, and are important moving parts in aircraft tooling. Tooling casters are mostly used for the rapid and smooth movement of aircraft tooling between multiple working positions, which is very beneficial for the pulsating production and assembly line production of aircraft, can greatly improve production efficiency, meet the overall diversified operation needs of the aircraft manufacturing process, and are an important part of large and medium-sized aircraft tooling.

[0003] High strength, high reliability, and stability during movement are important principles for caster design. The traditional aircraft tooling caster design is that the tooling designer constrains the drawn tooling caster model to the installation position through multiple face-to-face and hole-axis assembly at the caster installation point based on process experience. This manual selection of constrained assembly method has high labor intensity, low design efficiency, and is prone to errors. It cannot guarantee the consistency of design and product, resulting in uneven design structures and difficult to ensure design quality. At the same time, this design model makes it difficult for multiple people to work together, increases the difficulty of technical cooperation between teams, is not conducive to the development of efficient multi-person parallel design models, prolongs the design cycle, increases design and manufacturing costs, and cannot meet the needs of high-quality and rapid development of aircraft. Summary of the invention

[0004] The present invention application proposes a method for automatic assembly modeling of tooling casters by program, which establishes a tooling caster reference model, calculates the target position coordinates based on the caster assembly position point set using a program loop, and realizes automatic assembly modeling based on the caster assembly position points by parameterizing and updating the caster reference model.

[0005] In order to achieve the above invention objectives, the technical solutions adopted in this application are as follows:

[0006] A tooling caster program automatic assembly modeling method, comprising the following steps:

[0007] Establish a benchmark model for tooling casters;

[0008] The tooling caster program automatic assembly modeling of multiple tooling caster installation positions is realized based on the tooling caster benchmark model.

[0009] As a further solution of the present invention: the establishment of the tooling caster reference model is specifically as follows: a reference coordinate system is established based on the tooling caster positioning holes, and a parametric adjustment coordinate system is established by adding new parts; the tooling caster model with corresponding functions is used to perform assembly constraints from the reference coordinate system to the parametric adjustment coordinate system to complete the establishment of the tooling caster reference model.

[0010] As a further solution of the present invention: the establishment of the tooling caster reference model specifically includes the following steps:

[0011] Establish the tooling caster model in CAD software;

[0012] In the CAD software, take the center of one of the four tooling caster locating holes in the tooling caster model as the origin of the coordinate system, select the line connecting two of the other three tooling caster locating holes and the center of the first tooling caster locating hole as the direction of the coordinate system, and establish a reference coordinate system;

[0013] Create an assembly model in the CAD software and insert the established tooling caster model;

[0014] Add an adjustment part model to the assembly model, and establish three adjustment points CP1, CP2, and CP3 in the adjustment part model in the form of spatial point coordinates. Use CP1 as the origin of the coordinate system, and the coordinates of the line connecting CP2, CP3 and CP1 as the direction of the coordinate system to establish a parametric adjustment coordinate system.

[0015] Fix the adjusted part model in the CAD software;

[0016] In the CAD software, the tooling caster model is assembled from the reference coordinate system to the parameterized adjustment coordinate system using the corresponding function to complete the establishment of the tooling caster benchmark model.

[0017] As a further solution of the present invention: adjusting the parameterized coordinate system to realize automatic assembly modeling of tooling casters.

[0018] As a further solution of the present invention: the adjustment of the parameterized coordinate system is specifically: based on the caster assembly position point set, the three point coordinates of the installation target positions TP1, TP2, and TP3 are calculated by the program, and the point coordinate parameters CP1, CP2, and CP3 in the tooling caster reference model are updated parameterizedly to realize the program automatic assembly modeling of the tooling caster reference model based on the installation position.

[0019] As a further solution of the present invention: the program automatically assembles the model, specifically comprising the following steps:

[0020] S1, select the caster installation target position point set TLP{} in the CAD software;

[0021] S2, in the CAD software, the i-th target position point TLPi in the caster installation target position point set is used as the origin of the target coordinate system, and two direction control points TP2 and TP3 are established based on the caster connection plate model using the program;

[0022] S3, using the measurement program in the CAD software to obtain the point coordinates of the target position point TLPi, the direction control point TP2, and the direction control point TP3;

[0023] S4, in the CAD software, using the program to assign the coordinate values ​​of the points TLPi, TP2, and TP3 to the adjustment points CP1, CP2, and CP3 in the tooling caster reference model respectively;

[0024] S5, updating the tooling caster reference model, inserting the updated tooling caster reference model into the tooling assembly model, and completing the automatic assembly modeling of the tooling caster at the target position point TLPi;

[0025] S6, repeating steps S2 to S5 to cyclically complete the automatic assembly modeling of the tooling caster model at all points in the caster installation target position point set TLP{}.

[0026] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the automatic assembly modeling method when executing the program.

[0027] A computer storage medium stores a computer program, wherein the computer program implements the steps of the automatic assembly modeling method when executed by a processor.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] 1. Through the establishment of a tooling caster benchmark model based on parameterized adjustment points, a method for realizing multiple tooling caster installation target position point sets and caster connecting plate control direction point methods through software development is proposed. The control point and target position point coordinates are updated to the tooling caster benchmark model adjustment point assignment model, realizing the automatic assembly modeling of tooling casters with multiple target positions.

[0030] 2. This application effectively reduces the difficulty of software development for spatial coordinate transformation in the tooling caster assembly model, realizes standardized design, and ensures the caster design quality of aircraft tooling.

[0031] 3. This application provides a new solution for high-quality, high-efficiency, standardized automatic batch modeling of position instantiation models of standard parts such as casters and finished parts in aircraft structure design and aircraft tooling design processes.

[0032] The present application is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0034] In the attached picture:

[0035] Figure 1 A schematic diagram of a work caster reference model according to an embodiment of the present application;

[0036] Figure 2 A schematic diagram of a parameterized adjustment coordinate system according to an embodiment of the present application;

[0037] Figure 3 This is a schematic diagram of a tooling and caster connecting plate model according to an embodiment of the present application;

[0038] Figure 4 A schematic diagram of a connection plate model and a target coordinate system for one embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of a tooling and caster model according to an embodiment of the present application.

[0040] The reference numbers in the figure are: 1-castor model, 2-castor positioning hole, 3-reference coordinate system, 4-adjustment point CP1, 5-adjustment point CP2, 6-adjustment point CP3, 7-adjustment coordinate system, 8-tooling, 9-castor connecting plate, 10-target position point, 11-direction control point TP2, 12-direction control point TP3. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In a first aspect, the present invention provides a tooling caster program automatic assembly modeling method, which comprises the following steps:

[0043] Establish a reference coordinate system based on the tooling caster positioning holes, and add new parts to establish a parametric adjustment coordinate system;

[0044] The tooling caster model with matching functions is assembled from the reference coordinate system to the parameterized adjustment coordinate system to complete the establishment of the tooling caster reference model;

[0045] Adjust the parametric coordinate system to realize automatic assembly modeling of tooling casters.

[0046] See attached Figure 1 to Figure 5 A tooling caster program automatic assembly modeling method includes two parts: a tooling caster benchmark model and a tooling caster program automatic assembly modeling based on the caster assembly position. The tooling caster program automatic assembly modeling of multiple tooling caster installation positions is realized based on the tooling caster benchmark model.

[0047] The structural feature of the tooling caster reference model is that a reference coordinate system 3 is established with the tooling caster positioning hole 2, a parameterized adjustment coordinate system 7 is established by adding parts, and the establishment of the tooling caster reference model is completed by assembly. The design method includes the following steps:

[0048] 1-1. Create a tooling caster model 1 in CAD software;

[0049] 1-2. In the established tooling caster model 1, the center of one of the four tooling caster positioning holes 2 is used as the origin of the coordinate system, and the line connecting the centers of two of the other three tooling caster positioning holes 2 and the first tooling caster positioning hole 2 is selected as the direction of the coordinate system to establish a reference coordinate system 3;

[0050] 1-3. Create an assembly model in the CAD software and insert the established tooling caster model 1;

[0051] 1-4. Add an adjustment part model to the assembly model, and establish a point CP1 as adjustment point 4, a point CP2 as adjustment point 5, and a point CP3 as adjustment point 6 in the adjustment part model in the form of spatial point coordinates. In this embodiment, the coordinates of the three adjustment points are:

[0052] Adjust the coordinate value of point CP1 = (0,0,0);

[0053] Adjust the coordinate value of point CP2 = (100,0,0);

[0054] Adjust the coordinate value of point CP3 = (0,100,0);

[0055] A parameterized adjustment coordinate system 7 is established by taking adjustment point 4 as the origin of the coordinate system and taking the coordinates of the line connecting adjustment point 5, adjustment point 6 and adjustment point 4 as the direction of the coordinate system.

[0056] 1-5. Fix the adjusted part model in the CAD software;

[0057] 1-6. Using the matching function in the CAD software, the tooling caster model 1 is assembled and constrained from the reference coordinate system 3 to the parameterized adjustment coordinate system 7 to complete the establishment of the tooling caster reference model.

[0058] The method for automatically assembling tooling casters with multiple installation target positions is characterized in that the coordinates of the three installation target positions TP1, TP2 and TP3 are calculated by a program based on the caster assembly position point set, and the coordinate parameters of the three points CP1, CP2 and CP3 in the tooling caster reference model are adjusted by parameterization to realize the automatic assembly modeling of the tooling caster reference model based on the installation position. The design method includes the following steps:

[0059] 2-1. Select the tooling caster installation target position point set TLP {(37889.96, 10358.92, 36136.08), (38424.85, 9586.73, 37121.77), (39161.55, 13012.20, 39405.52), (38626.66, 13784.39, 38419.84)} in the CAD software.

[0060] 2-2. In the CAD software, the i-th target position point 10 in the caster installation target position point set is used as the origin of the target coordinate system, and the program is used to establish two direction control points 12 and 13 based on the caster connection plate 9 model. In this embodiment, the second target position point TLP2 in the caster installation target position point set is used as the starting point, and the program is used to establish point TP2 as the direction control point 11 along the length direction of the aircraft tooling based on the caster connection plate model with the target position point TLP2 as the starting point, and point TP3 as the direction control point 12 along the width direction of the aircraft tooling with the target position point TLP2 as the starting point.

[0061] 2-3. Use the measurement program in the CAD software to obtain the coordinates of the target position point TLP2, direction control point TP2, and direction control point TP3, which are:

[0062] Target position point TLP2 coordinate value = (38424.85, 9586.73, 37121.77);

[0063] Direction control point TP2 coordinate value = (38449.51, 9701.39, 37198.21);

[0064] The coordinate value of direction control point TP3 = (38466.10, 9527.18, 37197.78).

[0065] 2-4. In the CAD software, use the program to assign the coordinate values ​​of the points TLP2, TP2, and TP3 to the adjustment points CP1, CP2, and CP3 in the tooling caster reference model respectively;

[0066] Adjust the coordinate value of point CP1 = (38424.85, 9586.73, 37121.77);

[0067] Adjust the coordinate value of point CP2 = (38449.51, 9701.39, 37198.21);

[0068] Adjust the coordinate value of point CP3 = (38466.10, 9527.18, 37197.78).

[0069] 2-5. Update the tooling caster reference model, insert the updated tooling caster reference model into the aircraft tooling 8 assembly model, and complete the automatic assembly modeling of the tooling caster at the target position point TLP2.

[0070] 2-6. Repeat steps 2-2 to 2-5 to complete the automatic assembly modeling of the caster model of all point fixtures 8 in the caster installation target position point set TLP{}.

[0071] In a second aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the automatic assembly modeling method when executing the program.

[0072] In a third aspect, the present invention provides a computer storage medium having a computer program stored thereon, characterized in that the computer program implements the steps of the automatic assembly modeling method when executed by a processor.

[0073] So far, the purpose of the present invention has been achieved.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tooling caster program automatic assembly modeling method, characterized in that: The steps include: Establish a benchmark model for tooling casters; The tooling caster program automatic assembly modeling of multiple tooling caster installation positions is realized based on the tooling caster benchmark model.

2. The automatic assembly modeling method for tooling casters according to claim 1 is characterized in that: The establishment of the tooling caster reference model is specifically as follows: a reference coordinate system is established based on the tooling caster positioning holes, and a parametric adjustment coordinate system is established by adding parts; and the tooling caster model with corresponding functions is assembled from the reference coordinate system to the parametric adjustment coordinate system to complete the establishment of the tooling caster reference model.

3. The automatic assembly modeling method for tooling casters according to claim 2 is characterized in that: The establishment of the tooling caster reference model specifically includes the following steps: Establish the tooling caster model in CAD software; In the CAD software, take the center of one of the four tooling caster locating holes in the tooling caster model as the origin of the coordinate system, select the line connecting two of the other three tooling caster locating holes and the center of the first tooling caster locating hole as the direction of the coordinate system, and establish a reference coordinate system; Create an assembly model in the CAD software and insert the established tooling caster model; Add an adjustment part model to the assembly model, and establish three adjustment points CP1, CP2, and CP3 in the adjustment part model in the form of spatial point coordinates. Use CP1 as the origin of the coordinate system, and the coordinates of the line connecting CP2, CP3 and CP1 as the direction of the coordinate system to establish a parametric adjustment coordinate system. Fix the adjusted part model in the CAD software; In the CAD software, the tooling caster model is assembled from the reference coordinate system to the parameterized adjustment coordinate system using the corresponding function to complete the establishment of the tooling caster benchmark model.

4. The automatic assembly modeling method for tooling casters according to claim 3 is characterized in that: Adjust the parametric coordinate system to realize automatic assembly modeling of tooling casters.

5. The automatic assembly modeling method for tooling casters according to claim 4 is characterized in that: The adjustment of the parameterized coordinate system is specifically as follows: based on the caster assembly position point set, the three point coordinates of the installation target positions TP1, TP2, and TP3 are calculated using a program, and the point coordinate parameters CP1, CP2, and CP3 in the tooling caster reference model are updated parameterizedly to realize program automatic assembly modeling of the tooling caster reference model based on the installation position.

6. The automatic assembly modeling method for tooling casters according to claim 5, characterized in that: The program automatically assembles the model, specifically comprising the following steps: S1, select the caster installation target position point set TLP{} in the CAD software; S2, in the CAD software, the i-th target position point TLPi in the caster installation target position point set is used as the origin of the target coordinate system, and two direction control points TP2 and TP3 are established based on the caster connection plate model using the program; S3, using the measurement program in the CAD software to obtain the point coordinates of the target position point TLPi, the direction control point TP2, and the direction control point TP3; S4, in the CAD software, using the program to assign the coordinate values ​​of the points TLPi, TP2, and TP3 to the adjustment points CP1, CP2, and CP3 in the tooling caster reference model respectively; S5, updating the tooling caster reference model, inserting the updated tooling caster reference model into the tooling assembly model, and completing the automatic assembly modeling of the tooling caster at the target position point TLPi; S6, repeating steps S2 to S5 to cyclically complete the automatic assembly modeling of the tooling caster model at all points in the caster installation target position point set TLP{}.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the automatic matching modeling method according to any one of claims 1 to 6 are implemented.

8. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the automatic matching modeling method according to any one of claims 1 to 6 are implemented.

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