Vehicle body bottom hole aperture checking method, system and device and storage medium

Abstract

The invention discloses an automobile body bottom hole aperture checking method, system and device and a storage medium, and relates to the technical field of automobile body-in-white design, and the automobile body bottom hole aperture checking method comprises the following steps: obtaining the number information of a component of a current node in an automobile body part tree; when the numbering information of the nut is extracted from the numbering information, determining the numbering information of the nut and the numbering information of the single part which is in the same level with the numbering information of the nut; and when the target bottom hole aperture information is inconsistent with the designed bottom hole aperture information, generating error reporting information, so that according to the method, the bottom holes of which the apertures are not consistent with the standard apertures in the single vehicle body part are automatically compared and the errors are reported, the bottom hole inspection time is shortened, and the inspection result is not easy to deviate.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile body-in-white design, and in particular to a method, system, device and storage medium for checking the diameter of a body bottom hole. Background Art

[0002] During the design process of the automotive body-in-white, it is often necessary to provide installation points for other professionals. The installation points include welding nuts. In this case, a bottom hole is required. The bottom hole diameter is related to the standard part model. The existing bottom hole detection is done by manually checking the bottom hole diameter and taking statistics. However, manual inspection of the bottom hole diameter is time-consuming and subjective. The measurement data is easily biased under the influence of many circumstances, resulting in low efficiency. Summary of the Invention

[0003] The main purpose of the present invention is to provide a method, system, device and storage medium for checking the diameter of the bottom hole of the vehicle body, aiming to solve the problem of time-consuming manual inspection of the bottom hole diameter in the prior art.

[0004] To achieve the above-mentioned object, the present invention proposes a method for calibrating the diameter of a vehicle body bottom hole, the method comprising:

[0005] Obtaining the component number information of the current node in the vehicle body parts tree, wherein the component includes a single part and a nut;

[0006] When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes target bottom hole diameter information, and the numbering information of the individual parts includes designed bottom hole diameter information;

[0007] When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, an error message is generated.

[0008] In one embodiment, before obtaining the component number information of each node in the vehicle body parts tree, the method further includes:

[0009] Get the nut model information from the database;

[0010] Determine the corresponding target bottom hole diameter information according to different nut model information;

[0011] Obtain sketch information on a single part to determine the serial number information of the nut;

[0012] The model information of the nut, the target bottom hole diameter information and the serial number information of the nut are associated with each other to form the numbering information of the nut.

[0013] In one embodiment, the nut model information includes the nut model and corresponding standard information;

[0014] In the two pieces of nut model information, if the nut models are the same and the standard information is different, the target bottom hole diameter information is different.

[0015] In one embodiment, when the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the parts at the same level as the numbering information of the nut are determined, further comprising:

[0016] When the target bottom hole diameter information is consistent with the designed bottom hole diameter information, the step of obtaining the component number information of the current node in the body part tree is returned to, until the component number information of all nodes in the body part tree is obtained.

[0017] In one embodiment, the error message includes error prompt information and position information of incorrectly designed bottom holes.

[0018] In one embodiment, when the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, after generating the error message, the method further includes:

[0019] Add verification failure identification information to the numbering information of the individual parts.

[0020] In one embodiment, it further includes:

[0021] After the designed bottom hole is modified, modification identification information is added to the numbering information of the individual parts.

[0022] The present invention also provides a body welding nut bottom hole diameter calibration system, comprising:

[0023] The acquisition module is used to obtain the component number information of the current node in the body parts tree;

[0024] a determination module, configured to, when the numbering information of the nut is extracted from the numbering information, determine the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut;

[0025] The generating module is used to generate an error message when the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information.

[0026] The present invention also provides a body welding nut bottom hole diameter calibration device, the body welding nut bottom hole diameter calibration device comprising: a memory, a processor, and a body welding nut bottom hole diameter calibration program stored in the memory and executable on the processor. When the body welding nut bottom hole diameter calibration program is executed by the processor, the body welding nut bottom hole diameter calibration method implements the steps of the above-mentioned body bottom hole diameter calibration method, wherein the body bottom hole diameter calibration method includes:

[0027] Obtaining the component number information of the current node in the vehicle body parts tree, wherein the component includes a single part and a nut;

[0028] When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes target bottom hole diameter information, and the numbering information of the individual parts includes designed bottom hole diameter information;

[0029] When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, an error message is generated.

[0030] The present invention also provides a storage medium storing a body welding nut bottom hole diameter calibration program. When the body welding nut bottom hole diameter calibration program is executed by a processor, the body welding nut bottom hole diameter calibration method implements the steps of the body bottom hole diameter calibration method, wherein the body bottom hole diameter calibration method includes:

[0031] Obtaining the component number information of the current node in the vehicle body parts tree, wherein the component includes a single part and a nut;

[0032] When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes target bottom hole diameter information, and the numbering information of the individual parts includes designed bottom hole diameter information;

[0033] When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, an error message is generated.

[0034] In the technical solution of the present invention, the numbering information of the component of the current node in the body part tree is obtained, wherein the component includes a single part and a nut. When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the single part at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes the target bottom hole diameter information, and the numbering information of the single part includes the designed bottom hole diameter information. When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, an error message is generated. In this way, according to the above method, the bottom holes in the body part whose aperture does not match the standard aperture will be automatically compared and an error will be reported, thereby reducing the bottom hole inspection time and making the inspection result less likely to deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a device for calibrating the bottom hole diameter of a body welding nut in the hardware operating environment involved in an embodiment of the present invention;

[0036] Figure 2 Schematic diagram of the process of the vehicle body bottom hole diameter calibration method according to the present invention;

[0037] Figure 3 This is a structural block diagram of the present invention's system for checking the bottom hole diameter of a car body welding nut;

[0038] Figure 4 This is a schematic diagram of the naming of vehicle body parts provided by the present invention. DETAILED DESCRIPTION

[0039] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] Reference Figure 1 , Figure 1 The present invention is a schematic structural diagram of a device for calibrating the bottom hole diameter of a vehicle body welding nut in a hardware operating environment according to an embodiment of the present invention.

[0041] In the subsequent description, suffixes such as "module," "component," or "unit" used to represent elements are only used to facilitate the description of the present invention and have no specific meaning. Therefore, "module," "component," or "unit" can be used interchangeably.

[0042] like Figure 1As shown, the apparatus for checking the bottom hole diameter of a weld nut for a vehicle body may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard. Optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a wireless fidelity (WI-FI) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk storage device. The memory 1005 may also be a storage device independent of the processor 1001.

[0043] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the user behavior recognition device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0044] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and a vehicle body bottom hole diameter calibration program.

[0045] exist Figure 1 In the vehicle body welding nut bottom hole diameter calibration device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the vehicle body welding nut bottom hole diameter calibration device of the present invention can be set in the vehicle body welding nut bottom hole diameter calibration device, and the vehicle body welding nut bottom hole diameter calibration device calls the vehicle body bottom hole diameter calibration program stored in the memory 1005 through the processor 1001, and executes the vehicle body bottom hole diameter calibration method provided in the embodiment of the present invention.

[0046] The embodiment of the present invention provides a method for checking the diameter of a vehicle body bottom hole, referring to Figure 2 , Figure 2 The figure is a flow chart of the method for calibrating the diameter of the bottom hole of the vehicle body according to the present invention.

[0047] In this embodiment, the vehicle body bottom hole diameter calibration method includes the following steps:

[0048] Step S10: obtaining the component number information of the current node in the vehicle body parts tree, wherein the component includes a single part and a nut;

[0049] It should be noted that the car body includes the front body, middle body, rear body and other parts, among which each body part also includes different parts. The body part tree is a body part structure tree created according to the various parts of the car body and the components of each part. The body part structure tree is a nonlinear data structure, which is composed of nodes and edges to form a hierarchical model. In the body part structure tree, there is only one called the root node, which is the starting point of the entire body part structure tree. The single piece is the smallest unit of the body part mentioned above. The single piece and the nut are numbered separately. The data information of the single piece and the nut constitutes the data information of the component. Different components are numbered separately, and the numbered component data information is set under the current node at the same level of the body part structure tree.

[0050] During the specific implementation, the database table structure of the nut is determined. The structure of the database table storing the nut and aperture information is understood and determined. This usually includes fields such as the nut ID, model, size, and related information of the aperture. SQL (Structured Query Language) is used to write query statements to retrieve the required information from the database table. After executing the written SQL query statement, the database management system will return all models containing the word "nut" and their thread sizes. These results are further processed to extract the target bottom hole aperture information. Finally, the accuracy of the query results is verified to ensure that the obtained nut model and bottom hole aperture information are correct and meet the engineering design requirements.

[0051] Further, refer to Figure 4The body parts are complex and varied, such as the front body, middle body, rear body, body shell, body covering, etc. The front body is mainly composed of pillars, rocker panels, floors, roofs and doors, and the rear body includes luggage compartment, luggage compartment cover, rear side panels and rear bumper. The body shell is the installation basis of all body parts. It is usually a rigid space structure composed of main load-bearing components such as longitudinal and transverse beams and pillars and the sheet metal parts connected with them. Therefore, different car bodies are named according to their different characteristics, such as K4. 00383060 Then name the body parts on the same body in turn as "K400383060 (K400383060.1), K400383060 (K400383060.2), K400383060 (K400383060.3)..." and then set the named nut data below the body part data. In this way, the part itself and the nut data are combined into a component and set at the same level of the body part structure tree.

[0052] Further, refer to Figure 4 For example, the model of the nut, the bottom hole size of the industry standard / enterprise standard corresponding to each model, etc., the model of the nut and the target bottom hole diameter corresponding to the nut model are combined to name the nut, that is, the standard part. For example: "J310009J" represents the industry standard / enterprise standard corresponding to the nut, and "G0100" corresponds to the model of the nut. Then a certain nut is named: "J310009J-G0100 (J310009J-G0100.1), J310009J-G0100 (J310009J-G0100.2), J310009J-G0100 (J310009J-G0100.3)..." Several nuts are named according to different models and the nut data is set below the above-mentioned body part single piece data to facilitate subsequent procedures.

[0053] Step S20: When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes the target bottom hole diameter information, and the numbering information of the individual parts includes the designed bottom hole diameter information;

[0054] It should be noted that when the two nut model information items are the same but the standard information items are different, the target bottom hole diameter information items are different. The purpose of creating a structure tree for the body parts is to compare the bottom holes of each body part with the standard part diameter information of the corresponding model, i.e., the target bottom hole diameter information, through a computer program. Since the designed bottom hole exists on a body part, i.e., a single piece, the designed bottom hole diameter information first exists within the numbering information of the single body part. Since each nut has a standard part of a standard size under its corresponding model, the target bottom hole diameter, i.e., the diameter of the standard part, must exist under the nut numbering information. A single body part usually has multiple bottom holes, and these multiple bottom holes may have the same or different models. Therefore, the diameter information of these designed bottom holes is set below the multiple nut data numbering information.

[0055] Step S30: when the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, generating an error message;

[0056] In specific implementation, the target bottom hole diameter information is compared with the design bottom hole diameter information on the body part. At this time, it is necessary to establish a connection relationship and compare the target bottom hole diameter information, i.e., the industry standard / enterprise standard, and the design bottom hole diameter information, i.e., the bottom hole sketch information on the body part. If the data information is the same, no error will be reported, and the next iteration cycle will continue. If the data is different, an error will be reported for the bottom hole on the body part and the body part, and a verification failure identification information will be added to the numbering information of the part. Once a problem is found in the numbering information, the system will automatically mark it as "failed" and prompt the operator to check. After modifying the design bottom hole, a modification identification information is added to the numbering information of the part.

[0057] The present invention further provides a second embodiment of the method for calibrating the diameter of a vehicle body bottom hole. Based on the first embodiment, in this embodiment, before step S10, the method further includes:

[0058] Step S40: Obtain nut model information from the database;

[0059] Furthermore, in the established body parts structure tree, the body parts and the nuts in the database are placed in the same level of the structure tree and form components, and each type of nut corresponds to a certain amount of data.

[0060] Step S50: determining target bottom hole diameter information corresponding to different nut model information;

[0061] Furthermore, as in the example above, the number of the single body part is set to "K400383060 (K400383060.n)" and the above nut numbering example is set to J310009J-G0100 (J310009J-G0100.n), where "J310009J" is the target bottom hole aperture information, and "G0100" is the model information of the nut. In the traversal process, a certain model of the nut is traversed at the current node. After determining this model, it traverses to the nuts of this model at the same level, and then determines the corresponding target bottom hole aperture information based on this model of nut.

[0062] Step S60: Obtain sketch information on the component to determine the serial number information of the nut;

[0063] Further, refer to Figure 4 , establish a connection between the nut information and the bottom hole information on the body part. The body part is provided with a plurality of bottom holes. Each bottom hole on the single part corresponds to the bottom hole sketch information. The sketch information is numbered, and the numbered bottom hole sketch data information is set under the nut number information. The bottom hole sketch on the single part is assigned a serial number, which is the same as the serial number of the nut. As mentioned above, the nut numbering is, for example: J310009-G0100 (J310009J-G0100.n), where "n" is a natural number. The numbers of "n" are arranged as 1, 2, 3, ..., so when numbering the bottom hole sketches on the single part, the numbers are also assigned as "1, 2, 3, ...".

[0064] Step S70: Correlate the model information of the nut, the target bottom hole diameter information, and the serial number information of the nut to form the serial number information of the nut.

[0065] Furthermore, the above-mentioned "G0100" represents the various models of nuts, and the above-mentioned "J310009J" represents the aperture information corresponding to the industry standard / enterprise standard of the nut. The two are combined to form the nut numbering information "J310009J-G0100 (J310009J-G0100.1), J310009J-G0100 (J310009J-G0100.2), J310009J-G0100 (J310009J-G0100.3)......"

[0066] The present invention further provides a third embodiment of the method for calibrating the diameter of a vehicle body bottom hole. Based on the first embodiment, in this embodiment, after step S20, the method further includes:

[0067] Step S80: When the target bottom hole diameter information is consistent with the designed bottom hole diameter information, returning to the step of obtaining the component number information of the current node in the vehicle body parts tree, until the component number information of all nodes in the vehicle body parts tree is obtained;

[0068] Furthermore, the body parts structure tree is traversed to ensure that each node in the structure tree is visited at least once. The system visits the nodes in the structure tree in a certain order to facilitate the management and control of the access process. The above steps are repeated. After traversing to the current node, the component data information is extracted. When compiling, a nut model in the component is extracted and the nut model is determined. After determining that the nut model exists in the node, a sketch with the same nut model as the nut is extracted from the single piece at the same level as the nut, and the sketch data information is compared with the target bottom hole data information corresponding to the nut model. If the data is consistent, return to continue traversing the structure tree.

[0069] The present invention further provides a fourth embodiment of the method for calibrating the diameter of a vehicle body bottom hole. Based on the first embodiment, in this embodiment, after step S30, the method further includes:

[0070] Step S90: adding a verification failure identification information to the numbering information of the individual parts.

[0071] It should be noted that, during the traversal process, if the target bottom hole diameter information is inconsistent with the design bottom hole diameter information of the sketch on the single piece, an identification information indicating that the verification failed will be added to the single piece data information where the sketch is located.

[0072] The present invention further provides a fifth embodiment of the method for calibrating the diameter of a vehicle body bottom hole. Based on the fourth embodiment, in this embodiment, after step S90, the method further includes:

[0073] Step S100: After modifying the designed bottom hole, add modification identification information to the numbering information of the individual parts.

[0074] Furthermore, by adding modification identification information to the monomer to which identification information has been added, the designer can clearly see the bottom hole with incorrect size and the monomer where the bottom hole is located in the design sketch.

[0075] Reference Figure 3 , Figure 3 This is a structural block diagram of an embodiment of a system for checking the bottom hole diameter of a car body welding nut according to the present invention.

[0076] like Figure 3 The present invention provides a body welding nut bottom hole diameter calibration system comprising:

[0077] Acquisition module 10: used to obtain the component number information of the current node in the vehicle body parts tree;

[0078] It should be noted that the body parts are complex and diverse, such as the front body, middle body, rear body, body shell, body covering, etc. The names of different body parts and the same body parts are distinguished. For example, the single body part is named: "K400383060 (K400383060.n)" (n is a natural number) and the nut is named "J310009J-G0100 (J310009J-G0100.n)" (n is a natural number) according to different industry standards / enterprise standards. The nuts in the database are named in turn and set below the single body part data. The single part and the nut together constitute a component, and the acquisition module obtains the component number information.

[0079] Determining module 20: for determining the numbering information of the nut and the numbering information of the parts at the same level as the numbering information of the nut when the numbering information of the nut is extracted from the numbering information;

[0080] Generating module 30: for generating an error message when the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information;

[0081] In specific implementation, the target bottom hole diameter information is compared with the design bottom hole diameter information on the body part. At this time, it is necessary to establish a connection relationship and compare the target bottom hole diameter information, i.e., the industry standard / enterprise standard, with the design bottom hole diameter information, i.e., the bottom hole sketch information on the body part. If the data information is the same, no error will be reported, and the next traversal cycle will continue. If the data is different, an error will be reported for the bottom hole on the body part and the body part. Once a problem is found in the numbering information, the system will automatically mark it as "failed" and prompt the operator to check. Through the above steps, the target bottom hole information under the traversal model will be extracted, and then several design bottom hole sketch information on the body part under the nut data will be traversed, and the size planets in the design bottom hole sketch will be extracted and compared with the target bottom hole information. According to the error information, the system automatically refers to the predetermined correction rules or modifies the design bottom hole information through intelligent algorithms and adds modification marks.

[0082] The present invention also proposes a storage medium, which stores a program for calibrating the bottom hole diameter of a body welding nut. When the program is executed by a processor, the steps of the method for calibrating the bottom hole diameter of a body welding nut are implemented as described above.

[0083] Computer program code for carrying out the operations of the present invention may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0084] The flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0085] The modules involved in the embodiments of the present invention may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0086] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent scope of the present invention.

Claims

1. A method for checking the diameter of a vehicle body bottom hole, characterized in that: The steps include: Obtaining the numbering information of the component of the current node in the vehicle body parts tree, wherein the component includes a single part and a nut; When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the individual parts at the same level as the numbering information of the nut are determined, wherein the numbering information of the nut includes the target bottom hole diameter information, and the numbering information of the individual parts includes the design bottom hole diameter information; When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, an error message is generated.

2. The method for checking the diameter of the bottom hole of the vehicle body according to claim 1, characterized in that: Before obtaining the numbering information of the components of each node in the vehicle body parts tree, the method further includes: Get the nut model information in the database; Determine the corresponding target bottom hole diameter information according to different nut model information; Obtain sketch information on a single part to determine the serial number information of the nut; The model information of the nut, the target bottom hole diameter information and the serial number information of the nut are associated with each other to form the serial number information of the nut.

3. The method for checking the diameter of the bottom hole of the vehicle body as claimed in claim 2, characterized in that: The nut model information includes the nut model and corresponding standard information; In the two pieces of nut model information, when the nut models are the same and the standard information is different, the target bottom hole diameter information is different.

4. The method for checking the diameter of the bottom hole of the vehicle body as claimed in claim 1, characterized in that: When the numbering information of the nut is extracted from the numbering information, the numbering information of the nut and the numbering information of the parts at the same level as the numbering information of the nut are determined, and the method further includes: When the target bottom hole diameter information is consistent with the designed bottom hole diameter information, return to the step of obtaining the numbering information of the component of the current node in the body part tree until the numbering information of the component of all nodes in the body part tree is obtained.

5. The method for checking the diameter of the bottom hole of the vehicle body as claimed in claim 1, characterized in that: The error message includes error prompt information and position information of incorrectly designed bottom holes.

6. The method for checking the diameter of the bottom hole of the vehicle body as claimed in claim 1, characterized in that: When the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information, after generating the error message, the method further includes: Add verification failure identification information to the numbering information of the individual parts.

7. The method for checking the diameter of the bottom hole of the vehicle body as claimed in claim 6, characterized in that: Also includes: After the designed bottom hole is modified, modification identification information is added to the numbering information of the individual parts.

8. A body welding nut bottom hole diameter calibration system, characterized in that: include: The acquisition module is used to obtain the component number information of the current node in the body parts tree; A determination module, configured to determine the numbering information of the nut and the numbering information of a single part at the same level as the numbering information of the nut when the numbering information of the nut is extracted from the numbering information; A generating module is used to generate an error message when the target bottom hole diameter information is inconsistent with the designed bottom hole diameter information.

9. A device for checking the bottom hole diameter of a car body welding nut, characterized in that: The vehicle body welding nut bottom hole diameter calibration device comprises: a memory, a processor, and a vehicle body welding nut bottom hole diameter calibration program stored in the memory and executable on the processor. When the vehicle body welding nut bottom hole diameter calibration program is executed by the processor, the steps of the vehicle body bottom hole diameter calibration method as described in any one of claims 1 to 7 are implemented.

10. A storage medium, characterized in that: The storage medium stores a program for checking the diameter of the bottom hole of the welding nut of the vehicle body. When the program for checking the diameter of the bottom hole of the welding nut of the vehicle body is executed by the processor, the steps of the method for checking the diameter of the bottom hole of the vehicle body as described in any one of claims 1 to 7 are implemented.

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