Simulation scanning verification method, scanning device and controller

Abstract

The invention discloses a simulation scanning verification method, a scanning device and a controller, the simulation scanning verification method is applied to a scanning rotary table, the scanning rotary table comprises a detection tray, the detection tray is provided with a plurality of coordinate point notches used for fixing entity coordinate points, and the method comprises the following steps: establishing a mathematical model according to a workpiece design mathematical model and physical characteristic simulation of the detection tray; determining position information of a plurality of entity coordinate points on the detection tray according to the mathematical model, and determining a scanning area according to the position information of the plurality of entity coordinate points; and scanning and verifying the to-be-tested workpiece in the detachable fixed scanning area. According to the simulation scanning verification method, scanning and automatic evaluation verification of batch workpieces can be efficiently and accurately completed, the quality control level of the batch workpieces of suppliers is improved, and the product manufacturing quality level is improved.

Description

Technical Field

[0001] The present invention relates to the field of scanning verification technology, and in particular to a simulation scanning verification method, a controller and a simulation scanning verification device. Background Art

[0002] In the process of vehicle R&D and manufacturing, in order to ensure accuracy and quality, it is necessary to measure and scan various parts, collect data and analyze quality conditions in order to implement improvements. Therefore, measuring and scanning R&D products is a crucial task. Measurement and scanning are essential tasks in the R&D and manufacturing process.

[0003] Currently, point cloud scanning is more suitable for precision verification of parts purchased from suppliers due to large batches, large quantities, and comprehensive verification requirements. In actual scanning, accuracy evaluation and verification are usually performed one by one, which is inefficient and can only be solved by increasing equipment and personnel investment, which is also a pain point in the industry. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose a simulation scanning verification method, which establishes a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray, determines the position information of multiple physical coordinate points on the detection tray based on the mathematical model, and determines the scanning area based on the position information of the multiple physical coordinate points, and scans and verifies the workpiece to be tested in the detachable fixed scanning area, thereby efficiently and accurately completing the scanning and automatic evaluation verification of batch workpieces, improving the supplier's batch parts quality control level and improving the product manufacturing quality level.

[0005] The second object of the present invention is to provide a controller.

[0006] The third objective of the present invention is to provide a simulation scanning verification device.

[0007] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a simulation scanning verification method, which is applied to a scanning turntable, wherein the scanning turntable includes a detection tray, and a plurality of coordinate point slots are provided on the detection tray for fixing physical coordinate points. The method includes: establishing a mathematical model based on the workpiece design digital model and the physical property simulation of the detection tray; determining the position information of the plurality of physical coordinate points on the detection tray according to the mathematical model, and determining the scanning area according to the position information of the plurality of physical coordinate points; and scanning and verifying the workpiece to be measured that is detachably fixed in the scanning area.

[0008] According to the simulation scanning verification method of the embodiment of the present invention, a mathematical model is established based on the workpiece design digital model and the physical characteristics of the detection tray, the position information of multiple physical coordinate points on the detection tray is determined based on the mathematical model, and the scanning area is determined based on the position information of the multiple physical coordinate points, and the workpiece to be tested in the detachable fixed scanning area is scanned and verified. Therefore, the method can efficiently and accurately complete the scanning and automatic evaluation and verification of batch workpieces, improve the supplier's batch quality control level and improve the product manufacturing quality level.

[0009] In addition, the simulation scanning verification method according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, determining the position information of the plurality of physical coordinate points on the inspection tray according to the mathematical model includes: determining the physical properties of the inspection tray; determining the plurality of physical coordinate points on the inspection tray based on the physical properties and the workpiece design digital model; and determining the position information of the plurality of physical coordinate points based on the workpiece design digital model.

[0011] According to one embodiment of the present invention, determining the position information of the plurality of physical coordinate points based on the workpiece design digital model includes: determining the corresponding coordinate information at the plurality of physical coordinate points based on the coordinate information of the workpiece design digital model in a preset coordinate system.

[0012] According to an embodiment of the present invention, the scanning verification of the workpiece to be measured that is detachably fixed in the scanning area includes: verification based on the deviation of the scanning point cloud of the workpiece to be measured and the design digital model of the workpiece.

[0013] According to an embodiment of the present invention, the method further comprises: the position of the workpiece to be measured is the same as the placement position of the workpiece design digital model in the mathematical model.

[0014] According to an embodiment of the present invention, the scanning area is a volume in which the distance between the clamping position of the workpiece to be measured and the physical coordinate point does not exceed a preset proportion of the workpiece to be measured.

[0015] According to one embodiment of the present invention, the physical coordinate points are hexahedrons of multiple magnetic materials, two positioning pins are set on one face of the hexahedron, two pin holes are set on the other five faces, and coordinate points are set at the center of the faces, wherein the distances between the positioning pins and the pin holes match.

[0016] According to one embodiment of the present invention, the scanning turntable includes a rotating axis, a triangular support and a bracket, the triangular support includes a tripod and a pillar, the detection tray is connected to the pillar via the rotating axis, the bracket is connected to the triangular support, and a scanning device is installed on the upper end of the bracket for performing point cloud scanning on the workpiece to be measured when the detection tray rotates.

[0017] To achieve the above-mentioned purpose, a controller is proposed in a second aspect of an embodiment of the present invention, comprising a memory, a processor and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the above-mentioned vehicle simulation scanning verification method is implemented.

[0018] According to the controller of the embodiment of the present invention, by executing the above-mentioned simulation scanning and verification method, it is possible to efficiently and accurately complete the scanning and automatic evaluation and verification of batch workpieces, thereby improving the supplier's batch part quality control level and improving the product manufacturing quality level.

[0019] To achieve the above-mentioned purpose, the third aspect of the present invention proposes a simulation scanning verification device, which is applied to a scanning turntable. The scanning turntable includes a detection tray, and a plurality of coordinate point slots are provided on the detection tray for fixing physical coordinate points. The device includes: an establishment module, which is used to simulate and establish a mathematical model based on the workpiece design digital model and the physical properties of the detection tray; a determination module, which is used to determine the position information of the plurality of physical coordinate points on the detection tray according to the mathematical model, and determine the scanning area according to the position information of the plurality of physical coordinate points; a verification module, which is used to scan and verify the workpiece to be measured that is detachably fixed in the scanning area.

[0020] According to the simulation scanning verification device of the embodiment of the present invention, the establishment module is used to simulate and establish a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray, the determination module is used to determine the position information of multiple physical coordinate points on the detection tray according to the mathematical model, and determine the scanning area according to the position information of the multiple physical coordinate points, and the verification module is used to scan and verify the workpiece to be tested in the detachable fixed scanning area. As a result, the device can efficiently and accurately complete the scanning and automatic evaluation verification of batch workpieces, improve the supplier's batch quality control level and improve the product manufacturing quality level.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a flow chart of a simulation scanning verification method according to an embodiment of the present invention;

[0023] Figure 2is a schematic structural diagram of a detection tray according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of the structure of entity coordinate points according to an embodiment of the present invention;

[0025] Figure 4 is a structural schematic diagram of a combination of physical coordinate points according to an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of the overall structure of a scanning turntable according to an embodiment of the present invention;

[0028] Figure 7 A flowchart of a simulation scanning verification method according to a specific example of the present invention;

[0029] Figure 8 is a block diagram of a controller according to an embodiment of the present invention;

[0030] Fig. 9 FIG. 4 is a block diagram of a simulation scanning verification device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In one embodiment of the present invention, Figure 2 As shown, the scanning turntable 1 may include a detection tray 2, and a plurality of coordinate point slots 3 are provided on the detection tray 2 for fixing physical coordinate points, that is, the detection tray 2 is a platform for placing the workpiece to be measured, which can be rotated on the scanning turntable, allowing the scanning device to capture the three-dimensional data of the workpiece to be measured from different angles. In addition, a plurality of coordinate point slots 3 are provided on the detection tray 2, and the coordinate point slots 3 are used to fix the physical coordinate points, and their shapes and sizes match the appearance of the physical coordinate points to ensure that the physical coordinate points can be accurately placed at the predetermined position. The physical coordinate points are used to establish the relative position relationship between the workpiece to be measured and the scanning device, and serve as reference points during the scanning process, which helps the software to align and analyze the point cloud data during post-processing.

[0033] The following describes the simulation scanning verification method, controller and simulation scanning verification device proposed in the embodiments of the present invention with reference to the accompanying drawings.

[0034] Figure 1Flow chart of a simulation scanning verification method according to an embodiment of the present invention.

[0035] like Figure 1 As shown, the simulation scanning verification method of the embodiment of the present invention may include the following steps:

[0036] S1, establish a mathematical model based on the workpiece design digital model and the physical characteristics of the inspection pallet.

[0037] S2, determining position information of a plurality of physical coordinate points on the detection tray according to a mathematical model, and determining a scanning area according to the position information of the plurality of physical coordinate points.

[0038] S3, scanning and verifying the workpiece to be measured in the detachable fixed scanning area.

[0039] Specifically, when scanning and verifying the workpiece to be tested, a mathematical model can be first established based on the workpiece design digital model and the physical characteristics of the test tray. The workpiece design digital model refers to the three-dimensional digital model of the workpiece, which is usually created in computer-aided design (CAD) software and contains the geometric shape and size information of the workpiece. The test tray is a platform for placing and fixing the workpiece. The physical characteristics may include size, shape, etc. These characteristics are crucial to determining the precise position of the workpiece during the scanning process. Therefore, a mathematical model can be created in the computer measurement software based on the physical characteristics of the test tray and the workpiece design digital model. The model will simulate the actual scanning environment, including the position and orientation of the workpiece relative to the test tray.

[0040] After determining the mathematical model, the position information of multiple physical coordinate points on the detection tray can be determined according to the mathematical model. In other words, the coordinate points determined in the mathematical model will be used to physically mark the actual detection tray to facilitate accurate placement and scanning of the workpiece to be tested. Each coordinate point has an accurate coordinate value in a unified coordinate system (such as taking the center of the detection tray as the coordinate origin). Therefore, the specific placement position of the workpiece to be tested on the detection tray and the scanning area that the scanner needs to cover can be determined based on the mathematical model and the position information of the physical coordinate points. The scanning area should be large enough to ensure that all key parts of the workpiece to be tested can be completely scanned.

[0041] The workpiece to be tested in the scanning area is detachable, that is, it can be easily installed and removed, which helps to achieve fast batch scanning. For example, the workpiece to be tested can be fixed on the inspection tray by a buckle, and the workpiece can be scanned by a scanner, such as by rotating the scanner around the workpiece to obtain all-round point cloud data of the workpiece. After the scan is completed, the software automatically aligns and compares the acquired point cloud data with the design digital model of the workpiece, and evaluates whether the manufacturing accuracy of the workpiece meets the requirements by analyzing the deviation between the point cloud data and the design digital model. For example, if the deviation is large, it means that the manufacturing accuracy of the workpiece to be tested does not meet the requirements, and if the deviation is small, it means that the manufacturing accuracy of the workpiece to be tested meets the requirements.

[0042] Therefore, by simulating and establishing a mathematical model in computer software and then accurately arranging the physical coordinate points in the actual environment, fast and accurate scanning and quality verification of the workpiece are achieved. This method improves scanning efficiency, reduces the demand for equipment and personnel investment, and ensures high-precision quality control.

[0043] According to one embodiment of the present invention, the position information of multiple physical coordinate points on the detection tray is determined according to a mathematical model, including: determining the physical properties of the detection tray; determining the multiple physical coordinate points on the detection tray based on the physical properties and the workpiece design digital model; and determining the position information of the multiple physical coordinate points based on the workpiece design digital model.

[0044] Further, according to an embodiment of the present invention, determining position information of multiple physical coordinate points based on the workpiece design digital model includes: determining corresponding coordinate information at multiple physical coordinate points based on the coordinate information of the workpiece design digital model in a preset coordinate system.

[0045] Specifically, when determining the position information of multiple physical coordinate points on the detection tray according to the mathematical model, the position information of the physical coordinate points can be determined on the detection tray according to the mathematical model. That is, the physical characteristics of the detection tray are first determined. The detection tray is a platform for placing and fixing the workpiece, and its physical characteristics are crucial to ensuring the stability and accuracy of the workpiece during the scanning process. For example, the physical characteristics include the size, shape, material of the tray, and specific design elements on the tray, such as mounting screw holes for fixing the workpiece, coordinate point slots for locating coordinate points, etc. Using the physical characteristics of the detection tray and the design digital model (CAD model) of the workpiece, a mathematical model is created in the measurement software, which will simulate the actual scanning environment. In this mathematical model, the positions of multiple physical coordinate points on the detection tray are determined. These coordinate points are usually distributed in a grid or other regular pattern to cover the entire tray and ensure the accurate positioning of the workpiece during the scanning process.

[0046] The workpiece design model provides the precise geometry and dimensions of the workpiece, and this information is used to determine the exact location of each physical coordinate point in the mathematical model. The coordinate information of multiple physical coordinate points can be determined based on the coordinate information of the workpiece design model in the preset coordinate system. The location information of the physical coordinate points includes their X, Y, and Z coordinates in three-dimensional space. These coordinate points will be used as references during the scanning process to ensure the accuracy and repeatability of the scanned data. In the mathematical model, each coordinate point may be assigned a specific identifier (such as A1, A2, ..., An) and located according to their position relative to the origin of the coordinate system. In the computer measurement software, using the physical characteristics of the test tray and the workpiece design model, an accurate mathematical model is created, which will be used to guide the actual scanning process. The mathematical model will include the position of the workpiece relative to the test tray, as well as the relationship between the key feature points on the workpiece and the coordinate points on the test tray. Based on the information in the mathematical model, the physical coordinate points are arranged or marked on the actual test tray. These coordinate points can be attached marks, engraved points or other forms of physical identification. Therefore, under the guidance of the mathematical model, the workpiece is placed on the inspection tray to ensure that the position of the workpiece is consistent with the design in the model. Among them, the preset coordinate system has a clear coordinate origin (0,0,0) and the positive directions of the X, Y, and Z axes. For example, the center point of the inspection tray is used as the coordinate origin. In the preset coordinate system, based on the design digital model of the workpiece, the position where the physical coordinate point needs to be placed can be determined. These positions usually correspond to key features of the workpiece, such as edges, corners, holes, etc. For each determined position, its coordinate information in the preset coordinate system is calculated, including the coordinate values ​​in the three directions of X, Y, and Z, so that the physical coordinate points can be marked or placed on the actual inspection tray according to the calculated coordinate information. These coordinate points can be magnetic cubes, patches or other forms to provide precise position references in physical space.

[0047] In addition, the physical realization of the physical coordinate points should ensure that their positions completely correspond to the mathematical model in the measurement software, so as to provide accurate references in the actual scanning process. When the workpiece to be measured is placed on the inspection tray, these physical coordinate points are used to assist in the positioning and fixation of the workpiece to be measured, ensuring the stability and accuracy of the workpiece during the scanning process. In this way, it can be ensured that during the scanning verification process of the workpiece to be measured, the position information of the physical coordinate points accurately corresponds to the workpiece design digital model, thereby achieving efficient quality control and accuracy verification.

[0048] According to one embodiment of the present invention, scanning verification is performed on a workpiece to be measured in a detachable fixed scanning area, including: verification based on a scanning point cloud of the workpiece to be measured and a deviation of a design digital model of the workpiece.

[0049] Specifically, the workpiece to be tested is placed on the inspection tray and fixed in place stably with a detachable fixture or other fixing device to ensure that the workpiece to be tested does not move or shake during the scanning process. When scanning and verifying the workpiece to be tested in the detachable fixed scanning area, verification can be performed based on the deviation between the scanned point cloud of the workpiece to be tested and the design digital model of the workpiece. For example, a fixed workpiece to be tested is scanned using a 3D scanner, and the scanner can rotate around the workpiece to be tested or the workpiece itself rotates on a turntable to capture comprehensive point cloud data of the workpiece to be tested. The design digital model (CAD model) of the workpiece is imported into the measurement software. This design digital model represents the ideal geometric shape and size of the workpiece, so that in the measurement software, the point cloud data obtained by the actual scan is aligned with the design digital model of the workpiece, which usually involves an automatic or semi-automatic alignment algorithm to ensure that the point cloud data matches the design digital model in spatial position. After alignment, the measurement software calculates the deviation between the point cloud data and the design digital model, which includes size deviation, shape deviation, position deviation, etc., and is usually displayed in the form of a color-coded diagram or a numerical report. Finally, the deviation results can be analyzed to verify whether the actual manufacturing accuracy of the workpiece meets the design specifications and tolerance requirements. If the deviation exceeds the specified tolerance range, the workpiece needs to be adjusted or reprocessed.

[0050] In addition, a detailed quality report can be generated based on the results of the deviation analysis. The report usually includes numerical data of the deviation, graphical representation, conclusions on whether it is qualified or not, and possible recommended measures. For large quantities of workpieces, repeat the above steps to realize an automated batch scanning and verification process, improve efficiency and ensure that each workpiece meets quality standards. In this way, the scanning and automatic evaluation and verification of batch workpieces can be completed efficiently and accurately, improving the supplier's batch parts quality control level, thereby improving the product R&D and manufacturing quality level.

[0051] According to an embodiment of the present invention, the simulation scanning verification method further includes: the position of the workpiece to be measured is the same as the placement position of the workpiece design digital model in the mathematical model.

[0052] Specifically, the position of the workpiece to be tested should be the same as the placement position of the workpiece design digital model in the mathematical model. That is to say, in the mathematical model, the placement position of the workpiece is determined, including the position, direction and any specific angle or posture of the workpiece relative to the detection tray. According to the mathematical model, the physical coordinate points are arranged on the detection tray. These coordinate points will serve as the reference for the placement of the workpiece. The workpiece to be tested is placed on the detection tray and fixed with a fixture or other fixing device. During the placement process, ensure that the position and direction of the workpiece to be tested are consistent with the placement position of the design digital model in the mathematical model. The software can automatically align the point cloud data and the design digital model more accurately, reduce the need for manual adjustment, significantly reduce data processing time, and improve the efficiency of the entire scanning and verification process.

[0053] According to another embodiment of the present invention, the scanning area is a volume whose distance between the clamping position of the workpiece to be measured and the physical coordinate point does not exceed a preset ratio of the workpiece to be measured. The preset ratio can be determined according to actual conditions.

[0054] Specifically, the scanning area refers to the surface area of ​​the workpiece to be measured that the scanner can cover and capture data when performing a three-dimensional scan. The position where the workpiece to be measured is clamped on the detection tray, that is, the actual position where the workpiece to be measured is placed and fixed. The physical coordinate point is a reference point pre-set on the detection tray to assist in the positioning of the workpiece to be measured and the alignment of the scanning process. The distance between the clamping position of the workpiece to be measured and the physical coordinate point should be controlled within a range not exceeding the preset volume ratio of the workpiece. For example, if the preset ratio is 1 / 5, the distance between the clamping position and the coordinate point should not exceed 20% of the workpiece volume. That is, the preset ratio is a safety boundary used to ensure the positioning accuracy of the workpiece to be measured during the scanning process. This ratio can be determined based on the size and shape of the workpiece, as well as the required measurement accuracy. Therefore, during the scanning process, by controlling the distance between the clamping position and the coordinate point, the key features of the workpiece are ensured to be completely scanned, while avoiding the scanner from exceeding its working range. By accurately controlling the scanning area, the scanning time can be shortened and the overall work efficiency can be improved.

[0055] According to one embodiment of the present invention, Figure 3 As shown, the entity coordinate points are a plurality of hexahedrons 10 of magnetic material, two positioning pins 11 are set on one face of the hexahedron 10, two pin holes 12 are set on the other five faces, and a coordinate point 13 is set at the center of the face, wherein the distances between the positioning pins 11 and the pin holes 12 match.

[0056] Specifically, if Figure 3 As shown, the physical coordinate points are made of magnetic material and are in the shape of a cube (hexahedron 10). The magnetic material allows these coordinate points to be easily adsorbed on the detection tray while maintaining a stable position. Two positioning pins 11 are provided on one face of the hexahedron 10. These positioning pins 11 are used to match the holes or slots on the detection tray to ensure the correct positioning of the coordinate points on the tray. The remaining five faces are each provided with two pin holes 12. These pin holes 12 match the positioning pins 11, so that multiple coordinate points can be connected and fixed to each other to form a complex coordinate point group. For example, Figure 4As shown, after a plurality of hexahedrons 10 are spliced ​​and connected, a coordinate point group can be determined according to the corresponding position of each hexahedron 10. Among them, the distance between the positioning pin 11 and the pin hole 12 is precisely matched, which ensures that the connection between the coordinate points is accurate and consistent. This precise distance matching is essential to maintaining the accuracy of the overall coordinate system. Therefore, by adsorbing the coordinate points of a plurality of such magnetic hexahedrons 10 on the detection tray and connecting them with the positioning pins 11 and the pin holes 12, a complete coordinate point group can be constructed to form a unified reference frame. In addition, during the scanning process, these coordinate points can be identified by the scanning software to assist in the precise positioning and alignment of the workpiece, and the precise position information of the coordinate points can be used to calculate the actual size and shape deviation of the workpiece.

[0057] Since the coordinate point design is highly flexible and scalable, coordinate point groups of different shapes and sizes can be quickly arranged on the inspection tray as needed to meet the scanning requirements of different workpieces. This can greatly improve the efficiency and accuracy of workpiece scanning, simplify the operation process, reduce human errors, and provide a powerful tool for high-precision 3D measurement.

[0058] According to one embodiment of the present invention, Figure 5 and Figure 6 As shown, the scanning turntable 1 includes a rotating shaft 4, a triangular support 5, a bracket 6 and a pillar 7. The detection tray 2 is connected to the pillar 7 via the rotating shaft 4, the bracket 6 is connected to the triangular support 5, and a scanning device 8 is installed on the upper end of the bracket 6 for performing point cloud scanning on the workpiece to be detected when the detection tray 2 rotates.

[0059] Specifically, the scanning turntable is a device for three-dimensional scanning, which allows the workpiece to rotate during the scanning process so as to capture data from different angles. The scanning turntable 1 may include a rotating shaft 4, a triangular support 5 and a bracket 6. The rotating shaft 4 is a key component connecting the detection tray and the pillar, allowing the detection tray to rotate around the axis. The rotating shaft 4 has a high-precision bearing to ensure smooth and precise rotation. The triangular support 5 is composed of a tripod and a pillar 7, providing a stable support structure. The tripod is usually composed of three interconnected support arms to form a triangular base, and the pillar 7 connects the tripod and the rotating shaft 4 to support the entire turntable structure. The detection tray 2 is a platform for placing the workpiece to be tested. It is connected to the pillar 7 through the rotating shaft 4 and can rotate on the triangular support 5. The detection tray 2 can be equipped with a device for positioning and fixing the workpiece, such as a clamp or magnetic material.

[0060] The bracket 6 is a component connecting the triangular support 5 and the scanning device 8, and can be made of metal pipes or structural parts to provide stable support. The design of the bracket 6 should ensure the stability and accuracy of the scanning device 8 during the scanning process. The scanning device 8 is installed at the upper end of the bracket 6 and is used to perform point cloud scanning on the rotating workpiece 9 to be measured. The scanning device 8 can be a laser scanner, a structured light scanner or other types of three-dimensional scanning instruments. During the scanning process, the workpiece 9 to be measured can be placed on the detection tray 2, and the detection tray 2 is rotated so that different parts of the workpiece 9 to be measured face the scanning device 8 in turn. The scanning device 8 emits light (laser or structured light) and captures the reflected light to generate point cloud data on the surface of the workpiece 9 to be measured.

[0061] Combine the following Figure 7 To describe the verification method of the present invention.

[0062] As a specific example, the simulation scanning verification method of the present invention may include the following steps:

[0063] S101, establishing a mathematical model based on the workpiece design digital model and the physical characteristics of the inspection tray.

[0064] S102, determining the physical characteristics of the inspection tray;

[0065] S103, determining a plurality of physical coordinate points on the inspection tray based on the physical characteristics and the workpiece design digital model.

[0066] S104, based on the coordinate information of the workpiece design digital model in a preset coordinate system, determine the coordinate information corresponding to a plurality of physical coordinate points.

[0067] S105, determining a scanning area according to the position information of a plurality of entity coordinate points.

[0068] S106, in the scanning area, the position of the workpiece to be measured is made the same as the position of the workpiece design digital model in the mathematical model.

[0069] S107, verifying based on the deviation between the scanned point cloud of the workpiece to be measured and the design digital model of the workpiece.

[0070] In summary, according to the simulation scanning verification method of the embodiment of the present invention, a mathematical model is established based on the workpiece design digital model and the physical characteristics of the detection tray, the position information of multiple physical coordinate points on the detection tray is determined based on the mathematical model, and the scanning area is determined based on the position information of the multiple physical coordinate points, and the workpiece to be tested in the detachable fixed scanning area is scanned and verified. Therefore, this method can efficiently and accurately complete the scanning and automatic evaluation verification of batch workpieces, improve the supplier's batch parts quality control level and improve the product manufacturing quality level.

[0071] Corresponding to the above embodiment, the present invention also proposes a controller.

[0072] like Figure 8 As shown, the controller 200 of the embodiment of the present invention may include: a memory 210, a processor 220, and a program stored in the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above-mentioned simulation scanning verification method is implemented.

[0073] According to the controller of the embodiment of the present invention, by executing the above-mentioned simulation scanning and verification method, it is possible to efficiently and accurately complete the scanning and automatic evaluation and verification of batch workpieces, thereby improving the supplier's batch part quality control level and improving the product manufacturing quality level.

[0074] Corresponding to the above embodiment, the present invention also proposes a simulation scanning verification device.

[0075] like Fig. 9 As shown, the simulation scanning verification device 100 according to the embodiment of the present invention includes: an establishment module 110 , a determination module 120 and a verification module 130 .

[0076] The establishment module 110 is used to establish a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray. The determination module 120 is used to determine the position information of multiple physical coordinate points on the detection tray according to the mathematical model, and determine the scanning area according to the position information of the multiple physical coordinate points. The verification module 130 is used to scan and verify the workpiece to be tested in the detachable fixed scanning area.

[0077] According to one embodiment of the present invention, the determination module 120 determines the position information of multiple physical coordinate points on the inspection tray based on a mathematical model, and is specifically used to: determine the physical properties of the inspection tray; determine the multiple physical coordinate points on the inspection tray based on the physical properties and the workpiece design digital model; determine the position information of multiple physical coordinate points based on the workpiece design digital model.

[0078] According to one embodiment of the present invention, the determination module 120 determines the position information of multiple physical coordinate points based on the workpiece design digital model, and is specifically used to: determine the corresponding coordinate information at multiple physical coordinate points based on the coordinate information of the workpiece design digital model in a preset coordinate system.

[0079] According to an embodiment of the present invention, the verification module 130 performs scanning verification on the workpiece to be measured in the detachable fixed scanning area, and is specifically used to: verify based on the deviation of the scanning point cloud of the workpiece to be measured and the workpiece design digital model.

[0080] According to an embodiment of the present invention, the position of the workpiece to be measured is the same as the placement position of the workpiece design digital model in the mathematical model.

[0081] According to an embodiment of the present invention, the scanning area is a volume in which the distance between the clamping position of the workpiece to be measured and the physical coordinate point does not exceed a preset proportion of the workpiece to be measured.

[0082] According to one embodiment of the present invention, the physical coordinate points are hexahedrons of multiple magnetic materials, two positioning pins are set on one face of the hexahedron, two pin holes are set on the other five faces and coordinate points are set at the center of the face, wherein the distances between the positioning pins and the pin holes match.

[0083] According to one embodiment of the present invention, the scanning turntable includes a rotating axis, a triangular support and a bracket, the triangular support includes a tripod and a pillar, the detection tray is connected to the pillar through the rotating axis, the bracket is connected to the triangular support, and a scanning device is installed on the upper end of the bracket for performing point cloud scanning on the workpiece to be measured when the detection tray rotates.

[0084] It should be noted that for details not disclosed in the simulation scanning verification device of the embodiment of the present invention, please refer to the details disclosed in the simulation scanning verification method of the embodiment of the present invention, and the details will not be repeated here.

[0085] According to the simulation scanning verification device of the embodiment of the present invention, the establishment module is used to simulate and establish a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray, the determination module is used to determine the position information of multiple physical coordinate points on the detection tray according to the mathematical model, and determine the scanning area according to the position information of the multiple physical coordinate points, and the verification module is used to scan and verify the workpiece to be tested in the detachable fixed scanning area. As a result, the device can efficiently and accurately complete the scanning and automatic evaluation verification of batch workpieces, improve the supplier's batch quality control level and improve the product manufacturing quality level.

[0086] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0087] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A simulation scanning verification method, applied to a scanning turntable, characterized in that: The scanning turntable includes a detection tray, and the detection tray is provided with a plurality of coordinate point slots for fixing physical coordinate points. The method includes: Establishing a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray; Determine the position information of the plurality of physical coordinate points on the detection tray according to the mathematical model, and determine the scanning area according to the position information of the plurality of physical coordinate points; Scan and verify the workpiece to be measured which is detachably fixed in the scanning area.

2. The simulation scanning verification method according to claim 1, characterized in that: The step of determining the position information of the plurality of physical coordinate points on the detection tray according to the mathematical model comprises: determining a physical characteristic of the test tray; Determine a plurality of physical coordinate points on the inspection tray based on the physical characteristics and the workpiece design digital model; The position information of the plurality of physical coordinate points is determined based on the workpiece design digital model.

3. The simulation scanning verification method according to claim 2, characterized in that: Determining the position information of the plurality of physical coordinate points based on the workpiece design digital model includes: Based on the coordinate information of the workpiece design digital model in a preset coordinate system, the coordinate information corresponding to the plurality of physical coordinate points is determined.

4. The simulation scanning verification method according to claim 1, characterized in that: The scanning and verification of the workpiece to be measured that is detachably fixed in the scanning area includes: Verification is performed based on the deviation between the scanned point cloud of the workpiece to be measured and the designed digital model of the workpiece.

5. The simulation scanning verification method according to claim 1, characterized in that: The method further comprises: The position of the workpiece to be measured is the same as the placement position of the workpiece design digital model in the mathematical model.

6. The simulation scanning verification method according to claim 1, characterized in that: The scanning area is a volume in which the distance between the clamping position of the workpiece to be measured and the physical coordinate point does not exceed a preset proportion of the workpiece to be measured.

7. The simulation scanning verification method according to claim 1, characterized in that: The physical coordinate points are hexahedrons of multiple magnetic materials, one face of the hexahedron is provided with two positioning pins, the other five faces are provided with two pin holes and the coordinate points are provided at the center of the faces, wherein the distances between the positioning pins and the pin holes are matched.

8. The simulation scanning verification method according to claim 7, characterized in that: The scanning turntable includes a rotating shaft, a triangular support and a bracket. The triangular support includes a tripod and a pillar. The detection tray is connected to the pillar through the rotating shaft. The bracket is connected to the triangular support. A scanning device is installed on the upper end of the bracket for performing point cloud scanning on the workpiece to be measured when the detection tray rotates.

9. A controller, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the simulation scanning verification method according to any one of claims 1 to 8 is implemented.

10. A simulation scanning verification device, applied to a scanning turntable, characterized in that: The scanning turntable includes a detection tray, and a plurality of coordinate point slots are provided on the detection tray for fixing the physical coordinate points. The device includes: An establishment module is used to establish a mathematical model based on the workpiece design digital model and the physical characteristics of the detection tray; A determination module, used to determine the position information of the plurality of physical coordinate points on the detection tray according to the mathematical model, and determine a scanning area according to the position information of the plurality of physical coordinate points; The verification module is used to scan and verify the workpiece to be tested which is detachably fixed in the scanning area.

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