Method, system and equipment for automatically detecting and coloring equal-height boss plane of part and medium

Abstract

The invention relates to the technical field of automatic detection, in particular to an automatic detection and coloring method, system and equipment for equal-height boss planes of parts and a medium. The method comprises the following steps: firstly, searching to obtain a boss plane according to a CATIA secondary development technology; then measuring and recording the distance from the boss plane to the reference plane; and finally, the boss plane which is equal to the reference plane is subjected to the same coloring treatment, and VB technology packaging is called, so that the detection marking quality of the equal-height positioning plane of the frame beam part milling clamp is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft frame beam parts detection, and in particular to a method, system, equipment and medium for automatically detecting and coloring a part contour boss plane. Background Art

[0002] The aircraft frame beam milling fixture is a process equipment for positioning and clamping parts during aircraft production. The frame beam positioning surface is usually composed of a series of boss planes with different heights and parallel to each other. Its height dimension directly affects the positioning accuracy of the parts, and each boss needs to be controlled by the height dimension. The general method is to first mark the boss surfaces of the same height, and then use the measurement tool provided by the CATIA software to measure the height value of each boss surface from the reference plane one by one, and then use the coloring function provided by the CATIA software to color each boss surface, and finally explain the technical requirements such as boss height dimension control in the technical conditions.

[0003] At present, the general method of controlling the height dimension of the boss plane in the CATIA part model is to first mark the boss surfaces of the same height, and then use the measurement tool provided by the CATIA software to measure the height value of each boss surface from the reference plane one by one, and number each boss surface, and then use the coloring function provided by the CATIA software to color-mark each boss surface to distinguish boss surfaces of different heights, and finally explain the technical requirements for the boss height dimension in the technical conditions, such as the green boss surface size tolerance requirements, surface roughness requirements, etc.

[0004] Disadvantages of existing technology: a. Low work efficiency; Due to the complex structure of aircraft frame beam parts, there are hundreds of bosses of different heights that need to be positioned, and the milling fixtures used for parts processing also have a certain number of various structural surfaces. Therefore, each positioning boss must be marked with dimensional tolerances and other requirements. For easy identification by the naked eye, positioning bosses of the same height are usually distinguished by the same color.

[0005] In order to improve the reliability of naked eye identification, it is often necessary to number each boss surface, record the height, size and color for subsequent proofreading and inspection. In order to ensure the correctness of each boss surface mark, 100% proofreading and inspection is required. Therefore, it often takes 2 hours or more to proofread hundreds of boss surfaces with the naked eye.

[0006] b. There are quality risks; Because the original technology completely relies on manual recognition, it requires a high degree of concentration when working. When a person's mental state is problematic, errors may occur, such as incorrect size recording, incorrect color selection, etc. These errors may cause errors in the size control requirements of the boss surface, and fail to correctly locate the aircraft frame beam parts, causing quality risks in parts manufacturing. Summary of the invention

[0007] Aiming at the problems of low manual detection and marking efficiency of contour boss positioning planes of the milling and cutting fixture of the above-mentioned aircraft frame beam parts, and low detection and marking quality of contour boss positioning planes of the milling and cutting fixture of the frame beam parts, the present invention proposes a method, system, equipment and medium for automatic detection and coloring of contour boss planes of parts; firstly, the boss plane is searched and obtained according to the CATIA secondary development technology; then the distance from the boss plane to the reference plane is measured and recorded; finally, the boss planes with the same distance from the reference plane are subjected to the same coloring processing, and are encapsulated by calling VB technology, thereby improving the detection and marking quality of contour boss positioning planes of the milling and cutting fixture of the frame beam parts.

[0008] The specific implementation contents of the present invention are as follows: A method for automatically detecting and coloring a part's equal-height boss plane comprises the following steps: Step S1: searching and obtaining the boss plane according to CATIA secondary development technology; Step S2: measuring and recording the distance from the boss plane to the reference plane; Step S3: perform the same shading process on the boss planes that are equidistant from the reference plane, and call the VB technology package.

[0009] In order to better implement the present invention, further, the step S1 specifically includes the following steps: Step S11: calling the CATIA search function to search for all topological surfaces; Step S12: calling CATIA secondary development technology to write a topology surface search program; Step S13: Call CATIA secondary development technology to write a topology surface filtering program.

[0010] In order to better implement the present invention, further, the specific operation of step S2 is: using the measurement technology in the CATIA secondary development technology to write a measurement program code to obtain the distance between the boss plane and the reference plane, and the angle between the boss plane and the reference plane.

[0011] In order to better implement the present invention, further, the step S3 specifically includes the following steps: Step S31: Open the CATIA part model to be detected and colored by the equal-height boss positioning surface, and create a reference plane geometry set; Step S32: according to the selected reference plane, setting the detection range of the convex surface of equal height; Step S33: calling the CATIA search function to search and record the contour convex surface data; Step S34: measuring the distance from the convex surface to the reference plane and the angle from the convex surface to the reference plane; Step S35: Obtain and color the contour surface based on the distance and angle.

[0012] In order to better implement the present invention, further, the specific operation of step S31 is: open the CATIA part model to be detected and colored by the equal height boss positioning surface, add a geometric graphics set in the CATIA part model by using the CATIA secondary development technology, and call the CATIA plane to create the position of the specified reference plane; The name of the geometric set is a reference plane, and the reference plane is used to indicate a starting height for measuring distance.

[0013] In order to better implement the present invention, further, the specific operation of step S33 is: first call the CATIA search function to search for all topological surfaces, then filter all the searched topological surfaces, and finally record the plane type topological surfaces in the first data list set inside the software.

[0014] In order to better implement the present invention, further, the specific operation of step S34 is: first call the CATIA distance measurement function to measure the distance from all contour surfaces to the reference plane, and then use the CATIA angle measurement function to measure the angle from all contour surfaces to the reference plane; when the angle value from the contour surface to the reference plane is zero, it means that the boss plane is parallel to the reference plane. At this time, the distance data is recorded in the second data list set inside the software, indicating a series of mutually parallel contour boss plane data.

[0015] In order to better implement the present invention, further, the step S35 specifically includes the following steps: Step S351: Compare all distance values ​​in the second data list starting from the last row with the values ​​in the first row of the data list. If the data are the same, it is determined to be an equal-height boss plane. Step S352: calling the coloring code in the CATIA secondary development technology to color the contour boss plane; Step S353: Delete the data record rows that have been compared; Step S354: Repeat steps S351 and S352 until all contour surfaces are compared and colored, and call the VB technology package.

[0016] Based on the above-mentioned automatic detection and coloring method of the part contour boss plane, in order to better realize the present invention, further, a part contour boss plane automatic detection and coloring system is proposed, which is used to execute the above-mentioned part contour boss plane automatic detection and coloring method; it includes a search unit, a measurement unit, and a coloring unit; The search unit is used to search for the boss plane according to the CATIA secondary development technology; The measuring unit is used to measure and record the distance from the boss plane to the reference plane; The shading unit is used to perform the same shading process on the boss planes that are at the same distance from the reference plane, and call the VB technology package.

[0017] Based on the above-mentioned method for automatic detection and coloring of part contour boss planes, in order to better realize the present invention, further, an electronic device is proposed, including a memory and a processor; a computer program is stored on the processor; when the computer program is executed on the processor, the above-mentioned method for automatic detection and coloring of part contour boss planes is realized.

[0018] Based on the above-mentioned method for automatic detection and coloring of planes of bosses with contours on parts, in order to better realize the present invention, further, a computer-readable storage medium is proposed, on which computer instructions are stored; when the computer instructions are executed on the above-mentioned electronic device, the above-mentioned method for automatic detection and coloring of planes of bosses with contours on parts is realized.

[0019] The present invention has the following beneficial effects: (1) The present invention adopts VB programming technology and combines it with CATIA secondary development technology to successfully embed the search of boss planes in CATIA 3D digital models, the algorithm determination of equal-height boss planes and the coloring function into the software program, thus realizing the coloring function of equal-height planes in CATIA part digital models.

[0020] (2) The present invention has been successfully applied to the automatic coloring of contour boss planes of milling fixtures for aircraft frame beam parts, solving the problem of low efficiency in coloring contour boss planes during manual inspection, avoiding possible errors caused by large amounts of manual inspection data, and improving the quality of contour plane inspection markings of milling fixtures for frame beam parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the CATIA search dialog box provided by the present invention.

[0022] Figure 2 A schematic diagram of an example of plane coloring of contour bosses provided by the present invention.

[0023] Figure 3This is a schematic diagram of the interface of the contour boss plane detection and coloring software provided by the present invention.

[0024] Figure 4 The present invention provides a schematic diagram of the implementation process. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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. It should be understood that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, and therefore should not be regarded as limiting the scope of protection. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1: This embodiment provides a method for automatically detecting and coloring a part's equal-height boss plane, which specifically includes the following steps: Step S1: According to CATIA secondary development technology, the boss plane is searched and obtained.

[0028] The step S1 specifically includes the following steps: Step S11: calling the CATIA search function to search for all topological surfaces; Step S12: calling CATIA secondary development technology to write a topology surface search program; Step S13: Call CATIA secondary development technology to write a topology surface filtering program.

[0029] Step S2: Measure and record the distance from the boss plane to the reference plane.

[0030] The specific operation of step S2 is: using the measurement technology in the CATIA secondary development technology to write a measurement program code to obtain the distance between the boss plane and the reference plane, and the angle between the boss plane and the reference plane.

[0031] Step S3: perform the same shading process on the boss planes that are equidistant from the reference plane, and call the VB technology package.

[0032] The step S3 specifically comprises the following steps: Step S31: Open the CATIA part model to be detected and colored by the equal-height boss positioning surface, and create a reference plane geometry set; The specific operation of step S31 is: open the CATIA part model to be detected and colored by the equal height boss positioning surface, add a geometric set to the CATIA part model using CATIA secondary development technology, and call CATIA's plane to create the position of the specified reference plane.

[0033] Step S32: according to the selected reference plane, set the detection range of the convex surface with equal height.

[0034] Step S33: Call the CATIA search function to search and record the contour boss surface data.

[0035] The specific operation of step S33 is: first call the CATIA search function to search for all topological surfaces, then filter all the searched topological surfaces, and finally record the topological surfaces of the plane type in the first data list set inside the software. The name of the geometric set is the reference plane, and the reference plane is used to indicate the starting height of the measurement distance.

[0036] Step S34: measuring the distance from the convex surface with equal height to the reference plane and the angle from the convex surface with equal height to the reference plane.

[0037] The specific operation of step S34 is: first call the CATIA distance measurement function to measure the distance from all contour surfaces to the reference plane, and then use the CATIA angle measurement function to measure the angle from all contour surfaces to the reference plane; when the angle value from the contour surface to the reference plane is zero, it means that the boss plane is parallel to the reference plane. At this time, the distance data is recorded in the second data list set inside the software, indicating a series of mutually parallel contour boss plane data.

[0038] Step S35: Obtain and color the contour surface based on the distance and angle.

[0039] The step S35 specifically includes the following steps: Step S351: Compare all distance values ​​in the second data list starting from the last row with the values ​​in the first row of the data list. If the data are the same, it is determined to be an equal-height boss plane. Step S352: calling the coloring code in the CATIA secondary development technology to color the contour boss plane; Step S353: Delete the data record rows that have been compared; Step S354: Repeat steps S351 and S352 until all contour surfaces are compared and colored, and call the VB technology package.

[0040] Working principle: This embodiment first searches for the boss plane based on CATIA secondary development technology; then measures and records the distance from the boss plane to the reference plane; finally, the boss planes that are equal to the reference plane are shaded in the same way, and the VB technology is called for packaging, thereby improving the quality of the high positioning plane detection mark of the milling fixture of the frame beam parts.

[0041] Embodiment 2: This embodiment is based on the above embodiment 1. Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a specific embodiment is described in detail.

[0042] This embodiment uses CATIA secondary development technology to search for all boss planes, measure and record the distance from each boss plane to the reference plane, and then perform the same coloring process on boss planes with equal distances to the reference plane. For ease of use, the above method is packaged into a dedicated software using VB programming technology.

[0043] Step S1: Search all boss planes; Step S11: Use the CATIA search function to search for the boss plane. Figure 1 .

[0044] Step S12: Use CATIA secondary development technology to write topology surface search program code.

[0045] Step S13: Use CATIA secondary development technology to write plane type topological surface filtering program code.

[0046] 1) Using the CATIA search function, the topological surface element type is obtained; through the search, all topological surfaces existing in the CATIA parts are automatically searched out.

[0047] 2) Create an automatic search function. The specific operations of automatic search are as follows: SetPartDoument1=CATIA.ActiveDocument Set selectiom1=partDocument=partDocument1.selection selectiom1.Search"Topology.CGMFace,all".

[0048] 3) Use the CATIA feature type recognition function "PlannarFace" to filter out topological faces of plane type.

[0049] Step S2: measuring and recording the distance from each boss plane to the reference plane; The measurement program code is written by using the measurement technology in CATIA secondary development technology to obtain the distance and angle between each boss plane and the reference plane. The function of measuring the angle is to screen out the boss parallel surface.

[0050] 1) Distance measurement function Fune GetMinimumDistance(CATIAReference iMeasuredItem).

[0051] 2) Angle measurement function Fune GetAngleBetween(CATIAReference iMeasuredItem.

[0052] Step S3: The boss planes that are at the same distance from the reference plane are painted with the same color; Use the coloring function in CATIA secondary development technology to write the coloring program code to color the boss planes of the same height with the same color. The specific implementation process is as follows: 1) Store the angle and distance measurement data in the VB data list box; 2) Color the boss plane with a distance of zero, and the shading function is SetRealColor(Long iRed, LongI Green, Long iBlue, Long iZnheritance).

[0053] In this embodiment, 7 common colors are set, and you can also add or change the color setting as needed. Figure 2 The following is the implementation flow and process method of step S3.

[0054] Step S31: creating a reference plane; Step S311: Create a reference plane geometry set A geometric set of reference planes is established. The computer program can automatically obtain the location of the reference planes during operation and establish a measurement reference.

[0055] Use CATIA secondary development technology to add a geometric set to the CATIA part model. The name of the geometric set is the base plane, and the created function is oPart.HybridBodies.Add().

[0056] Step S312: specifying a reference plane; The reference plane is the reference for comparing the height planes of each boss. The heights of all boss planes are measured with the reference plane as the starting distance.

[0057] Use the plane creation function built into CATIA to specify the location of the reference plane as needed, and the technicians manually select it based on the structural characteristics of the CATIA parts. The reference plane is an infinite plane, and the distance measurement with each boss plane maintains a vertical distance without deviation.

[0058] Step S32: Select the plane of the boss with equal height; Select the detection range of the contour convex surface on the software operation interface. Only the data within the detection range can be included in the distance measurement range of the contour convex surface, reducing unnecessary measurement comparison and calculation.

[0059] Step S33: Search and record contour surface data; Step S331: searching for the topological surface of the part; Use CATIA search function to search for all topological surfaces.

[0060] Step S332: marking the topological surface; All the searched topological surfaces are filtered, and the plane-type topological surfaces are recorded in the first data list set inside the software.

[0061] Step S34: measuring the data from the contour surface to the reference plane; Step S341: measuring the distance from the contour surface to the reference plane; Use CATIA distance measurement function to measure the distance from all contour surfaces to the reference plane.

[0062] Fune GetMinimumDistance(CATIAReference iMeasuredItem.

[0063] Step S342: measuring the angle between the contour surface and the reference plane; Use CATIA angle measurement function to measure the angles from all contour surfaces to the reference plane.

[0064] Fune GetAngleBetween(CATIAReference iMeasuredItem.

[0065] Step S343: recording the data of parallel surfaces at equal heights; When the angle value from the contour surface to the reference plane is zero, it means that the boss plane is parallel to the reference plane. At this time, the distance data is recorded in the second data list set inside the software, indicating a series of mutually parallel contour boss plane data.

[0066] Step S35: Detect and color the contour surface; Step S351: Detecting contour surfaces; Compare all distance values ​​in the second data list starting from the last row with the values ​​in the first row of the data list. If the data are the same, it is determined to be an equal-height boss plane.

[0067] Step S352: coloring the contour surface; The coloring code in CATIA secondary development technology is used to color the equal-height boss plane, and then the data record rows that have been compared are deleted.

[0068] Then repeat the process until all the contour surfaces are compared and colored, and the program ends.

[0069] Step S353: setting the number of contour surface colors; In order to distinguish the colors of different contour surfaces, the number of contour surfaces N can be set as needed in the software. The number of contour surfaces is the number of distinguished colors. N is set according to the number of contour surfaces. Figure 2 In this example, N=10. For example, the first layer is green, the second layer is pink, and so on. See the flowchart for Figure 4 .

[0070] Step S4: developing dedicated software; The above method is packaged into a special software using CATIA secondary development technology and VB programming technology. Figure 3 .

[0071] When designing the fixture, the aircraft frame beam fixture designer opens the CATIA part model that needs to be tested and colored for the contour boss positioning surface, starts the contour boss detection and coloring software module, enters the operation interface, creates a reference plane geometry set, selects the reference plane, selects the contour surface detection range, and clicks the start detection command button. The computer automatically performs the high boss positioning surface detection and coloring operation according to the preset program. Working principle: This embodiment uses CATIA secondary development technology to search for all boss construction planes, measure and record the distance from each boss plane to the reference plane, and then perform the same coloring processing on the boss planes with the same distance from the reference plane, and encapsulate the above method using VB programming technology to form special software.

[0072] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1, so they will not be described in detail.

[0073] Embodiment 3: Based on any one of the above-mentioned embodiments 1-2, this embodiment proposes a system for automatically detecting and coloring a part's contour boss plane, which is used to execute the above-mentioned method for automatically detecting and coloring a part's contour boss plane; it includes a search unit, a measurement unit, and a coloring unit; The search unit is used to search for the boss plane according to the CATIA secondary development technology; The measuring unit is used to measure and record the distance from the boss plane to the reference plane; The shading unit is used to perform the same shading process on the boss planes that are at the same distance from the reference plane, and call the VB technology package.

[0074] This embodiment also proposes an electronic device, including a memory and a processor; a computer program is stored on the processor; when the computer program is executed on the processor, the above-mentioned method for automatic detection and coloring of the plane of the boss with equal height of the part is implemented.

[0075] This embodiment also proposes a computer-readable storage medium, on which computer instructions are stored; when the computer instructions are executed on the above-mentioned electronic device, the above-mentioned method for automatically detecting and coloring the planes of bosses with equal heights on parts is implemented.

[0076] The other parts of this embodiment are the same as any one of the above-mentioned embodiments 1-2, so they will not be repeated here.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for automatically detecting and coloring the plane of a part with equal height bosses, characterized in that: The specific steps include: Step S1: searching and obtaining the boss plane according to CATIA secondary development technology; Step S2: measuring and recording the distance from the boss plane to the reference plane; Step S3: perform the same shading process on the boss planes that are equidistant from the reference plane, and call the VB technology package.

2. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 1 is characterized in that: The step S1 specifically includes the following steps: Step S11: calling the CATIA search function to search for topological surface element types; Step S12: calling CATIA secondary development technology to write a topology surface search program; Step S13: Call CATIA secondary development technology, write a topology surface filtering program, and call the PlannarFace function to filter and select the boss plane of the plane type according to the topology surface element type.

3. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 1 is characterized in that: The specific operation of step S2 is: according to the CATIA secondary development technology, calling the distance measurement function to obtain the distance between the boss plane and the reference plane, calling the angle measurement function to obtain the angle between the boss plane and the reference plane.

4. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 1 is characterized in that: The step S3 specifically comprises the following steps: Step S31: Open the CATIA part model to be detected and colored by the equal-height boss positioning surface, and create a reference plane geometry set; Step S32: according to the selected reference plane, setting the detection range of the convex surface of equal height; Step S33: calling the CATIA search function to search and record the contour convex surface data; Step S34: measuring the distance from the convex surface to the reference plane and the angle from the convex surface to the reference plane; Step S35: Obtain and color the contour surface based on the distance and angle.

5. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 4 is characterized in that: The specific operation of step S31 is: open the CATIA part model to be detected and colored for the equal-height boss positioning surface, use CATIA secondary development technology to add a geometric set to the CATIA part model, and call CATIA's plane to create the position of the specified reference plane; the name of the geometric set is the reference plane, and the reference plane is used to indicate the starting height of the measurement distance.

6. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 5 is characterized in that: The specific operation of step S33 is: firstly, calling the CATIA search function to search out all topological surfaces, then filtering all the searched topological surfaces, and finally recording the plane type topological surfaces in the first data list set in the software.

7. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 4 is characterized in that: The specific operation of step S34 is: first call the CATIA distance measurement function to measure the distance from all contour surfaces to the reference plane, and then use the CATIA angle measurement function to measure the angle from all contour surfaces to the reference plane; when the angle value from the contour surface to the reference plane is zero, it means that the boss plane is parallel to the reference plane. At this time, the distance data is recorded in the second data list set inside the software, indicating a series of mutually parallel contour boss plane data.

8. The method for automatically detecting and coloring the plane of a part with equal height bosses according to claim 7 is characterized in that: The step S35 specifically includes the following steps: Step S351: Compare all distance values ​​in the second data list starting from the last row with the values ​​in the first row of the data list. If the data are the same, it is determined to be an equal-height boss plane. Step S352: calling the SetRealColor function in the CATIA secondary development technology to color the contour boss plane; Step S353: Delete the data record rows that have been compared; Step S354: Repeat steps S351 and S352 until all contour surfaces are compared and colored, and call the VB technology package.

9. A system for automatically detecting and coloring a part's contour boss plane, used to execute the method for automatically detecting and coloring a part's contour boss plane as claimed in claim 1; characterized in that: It includes a search unit, a measurement unit, and a coloring unit; The search unit is used to search for the boss plane according to the CATIA secondary development technology; The measuring unit is used to measure and record the distance from the boss plane to the reference plane; The shading unit is used to perform the same shading process on the boss planes that are at the same distance from the reference plane, and call the VB technology package.

10. An electronic device, characterized in that: It comprises a memory and a processor; a computer program is stored on the processor; when the computer program is executed on the processor, the automatic detection and coloring method of the part contour boss plane as described in any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions; when the computer instructions are executed on the electronic device as described in claim 10, the method for automatically detecting and coloring the plane of the part's contour boss as described in any one of claims 1-8 is implemented.

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