Auxiliary marking tool, vehicle body side wall marking tool and gauge assembly
By designing an auxiliary scribing tool, the problem of insufficient cutting precision on the side of the vehicle body was solved, achieving efficient and accurate scribing and cutting, and reducing costs.
Patent Information
- Application Number
- CN202520550051.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In automobile manufacturing, it is difficult to guarantee the cutting precision of the car body side panels, which leads to unusable parts and waste of resources.
Design an auxiliary scribing tool, including a clamping part, a positioning part, and a scribing surface. The clamping part is used to hold the vehicle body sheet metal, the positioning part is used for positioning, and the scribing surface is perpendicular to the surface of the vehicle body for scribing. Combined with CNC machining center processing, the positioning accuracy is improved, and the tool is compared and inspected after cutting.
It improves the efficiency and accuracy of marking, reduces labor intensity and production costs, ensures cutting accuracy, and simplifies the operation process.
Smart Images
Figure CN223863772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and more specifically, to an auxiliary marking tool, a vehicle body side marking fixture and inspection tool assembly. Background Technology
[0002] In the automotive manufacturing industry, the trial production of a new model is carried out simultaneously with the trial production and processing of commercial components. Commercial components are body parts required by authorized dealerships or repair shops. Taking the commercial component of the body side panel as an example, since the body side panel is relatively large after stamping, the welding department in the factory usually cuts the side panel assembly into three parts, then the painting department paints it, and finally the sales department packages it and provides it to authorized dealerships or repair shops. Since the cut parts are mainly used for reassembly or replacement of old parts, it is necessary to maintain the cutting precision, otherwise the parts will be unusable.
[0003] Cutting the side panels of a car body requires marking and dividing the side panel parts. Currently, marking is mainly done by simply measuring the cutting position with a ruler and then marking the lines with a straightedge. Therefore, it is difficult to guarantee the accuracy of the parts cut under these conditions. Parts that do not meet the accuracy requirements will be returned by the user department, resulting in a significant cost waste. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of insufficient cutting accuracy caused by the lack of suitable scribing tools during vehicle body cutting, and to provide an auxiliary scribing tool, a side panel scribing fixture, and an inspection tool assembly. This invention's scribing tool is simple and quick to install and use, greatly improving scribing efficiency and accuracy, and further enhancing subsequent cutting accuracy.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] An auxiliary marking tool includes a main body, a clamping part disposed on the main body for clamping a vehicle body sheet metal, a positioning member disposed on the main body for positioning, and a line-laying surface disposed on the main body, wherein the plane of the line-laying surface is perpendicular to the surface of the vehicle body sheet metal.
[0007] This utility model uses a clamping part to hold the sheet metal of the vehicle body on the cutting surface, and a positioning part to position it with the vehicle body. The cutting surface is perpendicular to the surface of the sheet metal. The operator can use a pen to draw lines on the sheet metal of the vehicle body along the cutting surface. This utility model's auxiliary marking tool is simple to install and use. After determining the marking points, the main body position and shape are determined according to the vehicle body design and the digital model of the vehicle body shape. It is then directly machined using a CNC machining center. The positioning accuracy of this auxiliary marking tool can be controlled within ±1mm. At the same time, marking is simple and quick, greatly improving marking efficiency and accuracy, while reducing the labor intensity of employees and reducing production costs. On the other hand, before cutting, this utility model's auxiliary marking tool is placed in the corresponding position for marking. Then, tools such as photoelectric cutting are used to cut the marked area. After cutting, this utility model's auxiliary marking tool can be placed in the corresponding position to compare and check the accuracy of the cut, to see if the cut is aligned, which serves as a preliminary inspection. This processing method is very simple and quick, not only saving time and labor but also improving the product's accuracy.
[0008] Furthermore, a wear-resistant layer is also provided on the feeding surface. Since the feeding surface needs to be repeatedly marked, the wear-resistant layer can effectively improve its service life and prevent wear on the feeding surface from causing inaccurate marking.
[0009] Furthermore, the wear-resistant layer is a stainless steel sheet with a thickness of 0.25mm to 0.35mm. Using a stainless steel sheet as the wear-resistant layer significantly improves service life. However, the stainless steel sheet should not be too thick or heavy, otherwise it will increase the weight and hinder operation. The stainless steel sheet can be attached or fixed with screws.
[0010] Furthermore, the positioning component is at least one positioning pin. At least one positioning pin ensures that the main body is not easily deflected, improving positioning stability. The positioning pin can be located in a pre-drilled mounting hole on the vehicle body sheet metal.
[0011] Furthermore, the positioning pin is made of stainless steel.
[0012] Furthermore, the end of the positioning component has a rounded transition, which can be hemispherical, to reduce impact stress.
[0013] Furthermore, the clamping part includes at least one contoured fitting surface, which fits against the side corner of the vehicle body sheet metal.
[0014] It should be noted that the contoured fitting surface that fits against the side corner of the vehicle body sheet metal can form a clamping fit with the vehicle body. With the use of positioning parts, it can both ensure that the main body is fixed on the vehicle body sheet metal and complete the marking function.
[0015] Furthermore, the main body is made of rigid nylon. Using plastic as the main structural material improves the lightweight design of the entire marking tool and reduces its overall weight.
[0016] Furthermore, at least one magnetic fastener is embedded in the main body, which is attracted to the vehicle body sheet metal. The addition of the magnetic fastener for further attraction and fixation allows the marking tool to adhere to the vehicle body even when it is upright or vertically clamped, expanding the application scenarios of this invention. Simultaneously, the magnetic attraction ensures that the main body does not shift, further improving the stability during marking.
[0017] This utility model also provides a vehicle body side panel marking tool, including four auxiliary marking tools as described above. The four auxiliary marking tools are a first A-pillar marking tool, a first B-pillar marking tool, a first rear sill marking tool, and a first rear door top beam marking tool.
[0018] For the side panel of the vehicle body, the side panel assembly needs to be cut into three parts. Due to the structure of the side panel, dividing it into three parts requires at least four auxiliary marking tools for corresponding positions. According to the actual marking position requirements, these are the first A-pillar marking tool, the first B-pillar marking tool, the first rear sill marking tool, and the first rear door top beam marking tool. At the same time, the clamping parts of these four auxiliary marking tools are all set to fit different positions.
[0019] This utility model also provides a vehicle body side panel marking tool assembly, including the first A-pillar marking tool, the first B-pillar marking tool, the first rear sill marking tool, and the first rear door top beam marking tool as described above, and also includes and / or a second A-pillar marking tool whose marking surface is opposite to that of the first A-pillar marking tool, and also includes and / or a second B-pillar marking tool whose marking surface is opposite to that of the first B-pillar marking tool, and also includes and / or a second rear sill marking tool whose marking surface is opposite to that of the first rear sill marking tool, and also includes and / or a second rear door top beam marking tool whose marking surface is opposite to that of the first rear door top beam marking tool.
[0020] Since the auxiliary scribing tool of this utility model can not only be used as a scribing tool, but also for comparison and inspection after cutting, in order to further improve the function of the fixture and enable the auxiliary scribing tool to compare and inspect the corresponding notches of the two workpieces after cutting, another set of corresponding scribing tools is set opposite to the scribing surface of the first A-pillar scribing tool, the first B-pillar scribing tool, the first rear sill scribing tool, and the first rear door top beam scribing tool, so as to obtain a scribing fixture assembly that can scribing and inspect any cut.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] This invention uses a clamping part to hold the cutting line surface to the sheet metal of the vehicle body, and a positioning part to position it to the vehicle body. The cutting line surface is perpendicular to the sheet metal surface of the vehicle body. The operator can use a pen to draw lines on the sheet metal of the vehicle body along the cutting line surface. This invention's auxiliary drawing tool is simple to install and use, greatly improves the drawing efficiency and accuracy, and further improves the subsequent cutting accuracy.
[0023] Before cutting, place the auxiliary scribing tool of this utility model on the corresponding part to scribing. Then, use photoelectric cutting tools to cut the scribing part. After cutting, the auxiliary scribing tool of this utility model can be placed on the corresponding part to compare and detect the accuracy of the cut and see if the cut is aligned. This serves as a preliminary detection function. This method of processing is very simple and fast, which not only saves time and effort but also improves the accuracy of the product. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of this utility model;
[0027] Figure 4 This is a structural schematic diagram of Embodiment 4 of the present invention.
[0028] The markings in the diagram are explained below:
[0029] 1-Main body, 2-Clamping part, 21-Shaping fitting surface, 3-Positioning part, 4-Line laying surface, 41-Wear-resistant layer, 5-Magnetic fixing part, 100-First A-pillar marking tool, 200-First B-pillar marking tool, 300-First rear door sill marking tool, 400-First rear door top beam marking tool, 500-Second rear door sill marking tool, 600-Second rear door top beam marking tool. Detailed Implementation
[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0032] Example 1
[0033] like Figure 1 The first embodiment of this utility model is shown below. This embodiment takes the first A-pillar marking tool 100, which is required for cutting and marking the side of a vehicle body, as an example:
[0034] like Figure 1 As shown, an auxiliary marking tool includes a main body 1, a clamping part 2 disposed on the main body 1 for clamping a vehicle body sheet metal, a positioning member 3 disposed on the main body 1 for positioning, and a line-laying surface 4 disposed on the main body 1, the plane of the line-laying surface 4 being perpendicular to the surface of the vehicle body sheet metal.
[0035] like Figure 1 As shown, the pay-off surface 4 is also provided with a wear-resistant layer 41. Since the pay-off surface 4 needs to be repeatedly scribed, the wear-resistant layer 41 can effectively improve its service life and prevent wear on the pay-off surface 4 from causing inaccurate scribing.
[0036] In this embodiment, the wear-resistant layer 41 is a stainless steel sheet with a thickness of 0.3 mm. Using a stainless steel sheet as the wear-resistant layer 41 can greatly improve the service life. The stainless steel sheet should not be too thick or heavy, otherwise it will increase the weight and make operation difficult. The stainless steel sheet can be attached or fixed with screws.
[0037] like Figure 1 As shown, positioning component 3 is a positioning pin. The position of the positioning pin can be a pre-drilled mounting hole on the vehicle body sheet metal.
[0038] In this embodiment, the locating pin is made of stainless steel.
[0039] In this embodiment, the end of the locating pin can be hemispherical to reduce impact stress.
[0040] like Figure 1 As shown, the clamping part 2 includes two contoured fitting surfaces 21, which fit against the side corners of the vehicle body sheet metal.
[0041] It should be noted that the contoured fitting surface 21, which fits against the side corner of the vehicle body sheet metal, can form a clamping and fitting effect with the vehicle body. With the use of the positioning part 3, it can both ensure that the main body 1 is fixed on the vehicle body sheet metal and complete the marking function.
[0042] In this embodiment, the main body 1 is made of rigid nylon. Using plastic as the main body 1 improves the lightweight design of the entire marking tool and reduces its overall weight.
[0043] The method of use in this embodiment is as follows: the cutting and laying surface 4 is clamped to the sheet metal of the vehicle body by the clamping part 2, and the positioning part 3 is used to position it with the vehicle body. The laying surface 4 is perpendicular to the sheet metal surface of the vehicle body. The operator can use a pen to draw lines on the sheet metal of the vehicle body along the laying surface 4. The installation and use are simple.
[0044] The advantages of this embodiment are as follows: After determining the marking points, the position and shape of the main body 1 are determined based on the vehicle body design and the digital model of the vehicle body. It is then directly machined using a CNC machining center. The positioning accuracy of this auxiliary marking tool can be controlled within ±1mm. Simultaneously, marking is simple and quick, greatly improving marking efficiency and accuracy, while reducing the labor intensity of employees and lowering production costs. Furthermore, before cutting, the auxiliary marking tool is placed at the corresponding location for marking. Then, tools such as photoelectric cutting tools are used to cut the marked area. After cutting, the auxiliary marking tool can be placed back at the corresponding location to compare and check the accuracy of the cut, ensuring alignment and serving as a preliminary inspection. This method of processing is very simple and quick, saving time and effort while improving product accuracy.
[0045] Example 2
[0046] like Figure 2 The following is a second embodiment of the present invention, which takes the first B-pillar marking tool 200 required for cutting and marking the side of a vehicle body as an example:
[0047] This embodiment is similar to Embodiment 1, except that:
[0048] like Figure 2 As shown, positioning component 3 consists of two positioning pins. These two positioning pins ensure that the main body 1 is not easily deflected, improving positioning stability. The positioning pins can be positioned using pre-drilled mounting holes on the vehicle body sheet metal.
[0049] In this embodiment, the locating pin is made of stainless steel.
[0050] In this embodiment, the end of the locating pin can be hemispherical to reduce impact stress.
[0051] like Figure 2As shown, at least one magnetic fastener 5 is also embedded in the main body 1, and the magnetic fastener 5 is attracted to the vehicle body sheet metal. The addition of the magnetic fastener 5 is used for further attraction and fixation, so that the marking tool can also be attached to the vehicle body when the vehicle body sheet metal is upright or vertically clamped, which improves the application scenarios of this utility model. At the same time, the magnetic attraction ensures that the main body 1 will not shift, and further improves the stability during marking.
[0052] In this embodiment, the magnetic fastener 5 is a magnet.
[0053] In this embodiment, the magnetic fastener 5 is fixed to the contoured fitting surface 21 that fits against the side corner of the vehicle body sheet metal.
[0054] The other structures and principles of this embodiment are the same as those of Embodiment 1.
[0055] Example 3
[0056] like Figure 3 As shown, this embodiment provides a vehicle body side panel marking tool, including four auxiliary marking tools as described above. The four auxiliary marking tools are a first A-pillar marking tool 100, a first B-pillar marking tool 200, a first rear sill marking tool 300, and a first rear door top beam marking tool 400.
[0057] For the side panel of the vehicle body, the side panel assembly needs to be cut into three parts. Due to the structure of the side panel, dividing it into three parts requires at least four auxiliary marking tools at corresponding positions. According to the actual marking position requirements, they are the first A-pillar marking tool 100, the first B-pillar marking tool 200, the first rear sill marking tool 300, and the first rear door top beam marking tool 400. At the same time, the clamping part 2 of the auxiliary marking tools for these four parts is set to fit the different positions.
[0058] Example 4
[0059] like Figure 4 As shown, this embodiment provides a vehicle body side panel marking tool assembly, including a first A-pillar marking tool 100, a first B-pillar marking tool 200, a first rear sill marking tool 300, and a first rear door top beam marking tool 400 as described in Embodiment 3 above. It also includes a second rear sill marking tool 500 that is positioned opposite to the marking surface 4 of the first rear sill marking tool 300, and a second rear door top beam marking tool 600 that is positioned opposite to the marking surface 4 of the first rear door top beam marking tool 400.
[0060] Since the auxiliary scribing tool can not only be used as a scribing tool, but also for comparison and inspection after cutting, in order to further improve the function of the fixture and enable the auxiliary scribing tool to compare and inspect the corresponding notches of the two cut workpieces after cutting, another set of corresponding scribing tools is set opposite to the line surface 4 of the first A-pillar scribing tool 100, the first B-pillar scribing tool 200, the first rear sill scribing tool 300 and the first rear door top beam scribing tool 400, thus obtaining a scribing fixture assembly that can scribing and inspect any cut.
[0061] In this embodiment, the vehicle body side panel marking fixture assembly also includes a second rear door top beam marking tool 600, which is positioned opposite to the marking surface 4 of the first rear door top beam marking tool 400, and a second rear sill marking tool 500, which is positioned opposite to the marking surface 4 of the first rear sill marking tool 300. The inclusion of two additional marking tools at opposite rear positions is based on practical production and cost considerations. Since a vehicle body side panel is divided into three parts, plasma cutting during the cutting process results in melting loss at the cut points. Therefore, during cutting, a portion of the tool used... The cutting line is retained, and the cut end can be polished after cutting. However, another part of the sheet metal will be cut off, and there will be melting loss. Therefore, after a vehicle side panel is divided into three parts, only two parts can be used at most. Based on the frequently needed parts and the parts with higher demand, the latter two parts of the vehicle side panel are used more. Therefore, in this embodiment, the vehicle side panel marking and inspection tool assembly is equipped with a second rear sill marking tool 500 and a second rear door top beam marking tool 600 to facilitate the rapid inspection needs after the rear is cut.
[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An auxiliary drawing tool, characterized in that, It includes a main body (1), a clamping part (2) disposed on the main body (1) for clamping the vehicle body sheet metal, a positioning member (3) disposed on the main body (1) for positioning, and a wire feeding surface (4) disposed on the main body (1), wherein the plane of the wire feeding surface (4) is perpendicular to the surface of the vehicle body sheet metal.
2. The auxiliary drawing tool according to claim 1, characterized in that, The wire feeding surface (4) is also provided with a wear-resistant layer (41).
3. The auxiliary drawing tool according to claim 2, characterized in that, The wear-resistant layer (41) is a stainless steel sheet with a thickness of 0.25 mm to 0.35 mm.
4. The auxiliary drawing tool according to claim 1, characterized in that, The positioning element (3) is at least one positioning pin.
5. The auxiliary drawing tool according to claim 4, characterized in that, The end of the positioning element (3) is provided with a rounded transition.
6. The auxiliary drawing tool according to claim 1, characterized in that, The clamping part (2) includes at least one contoured fitting surface (21), which fits against the side corner of the vehicle body sheet metal.
7. The auxiliary drawing tool according to claim 1, characterized in that, The main body (1) is rigid nylon.
8. The auxiliary drawing tool according to claim 1, characterized in that, At least one magnetic fastener (5) is also embedded in the main body (1), and the magnetic fastener (5) is attracted to the sheet metal of the vehicle body.
9. A tooling for marking lines on the side of a vehicle body, characterized in that, It includes four auxiliary marking tools as described in any one of claims 1-8, namely, a first A-pillar marking tool (100), a first B-pillar marking tool (200), a first rear sill marking tool (300), and a first rear door top beam marking tool (400).
10. A vehicle body side panel marking inspection tool assembly, characterized in that, The tool includes the first A-pillar marking tool (100), the first B-pillar marking tool (200), the first rear sill marking tool (300), and the first rear door top beam marking tool (400) as described in claim 9. It also includes a second A-pillar marking tool that is opposite to the position of the line surface (4) of the first A-pillar marking tool (100), a second B-pillar marking tool that is opposite to the position of the line surface (4) of the first B-pillar marking tool (200), a second rear sill marking tool (500) that is opposite to the position of the line surface (4) of the first rear sill marking tool (300), and a second rear door top beam marking tool (600) that is opposite to the position of the line surface (4) of the first rear door top beam marking tool (400).