Door side cover and piercing welding device therefor

Abstract

The utility model provides a car door side cover plate, including main side cover plate and vice side cover plate, the side of main side cover plate is equipped with a plurality of connecting piece, be equipped with connecting hole on the connecting piece, the side of vice side cover plate is equipped with the connecting column corresponding with connecting hole, and the other side is equipped with a plurality of buckle, the end of main side cover plate still is equipped with a positioning hole, be equipped with the positioning column corresponding with positioning hole on vice side cover plate, still be equipped with two convex district between main side cover plate positioning hole and connecting hole, be equipped with two recessed area corresponding with pre -convex district between vice side cover plate positioning column and connecting column, the connecting column is connected to connecting hole, the positioning column is connected to positioning hole, realizes the connection between main side cover plate and vice side cover plate. The utility model guarantees the connecting strength and assembly accuracy, and has optimized production efficiency, cost and process adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of piercing welding, and in particular relates to a car door side cover and a piercing welding device for it. Background Technology

[0002] In the automotive manufacturing industry, door panels, as an important component of the car body, are typically composed of multiple parts to meet requirements such as structural strength, lightweighting, and aesthetics. Traditional door panels may employ a one-piece molding design, but for certain complex structures or material combinations, it is often necessary to manufacture the panel in multiple parts separately and then connect and fix them together using welding processes. When the door panel is composed of two or more layers of sheets of different materials or thicknesses, traditional welding methods may face problems such as large thermal deformation, insufficient connection strength, or appearance defects, increasing the cost of subsequent grinding and repair. Utility Model Content

[0003] In view of this, the present invention aims to provide a side cover panel for a car door and a piercing welding device for it. By using the piercing welding process, the equipment cost is low, and the welding area is concealed and does not require subsequent grinding, thus saving labor costs and improving work efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] The door side cover includes a main side cover and a secondary side cover. The side of the main side cover is provided with a plurality of connecting pieces, and the connecting pieces are provided with connecting holes.

[0006] The secondary side cover plate has a connecting post on one side corresponding to the connecting hole, and a number of buckles on the other side.

[0007] The main side cover plate is also provided with a positioning hole at one end, and the secondary side cover plate is provided with a positioning post corresponding to the positioning hole;

[0008] Two raised areas are provided between the positioning hole and the connecting hole of the main side cover plate, and two recessed areas corresponding to the pre-raised areas are provided between the positioning post and the connecting post of the secondary side cover plate.

[0009] The connecting post is sleeved to the connecting hole, and the positioning post is sleeved to the positioning hole to realize the connection between the main side cover plate and the secondary side cover plate. The position where the positioning post and the positioning hole are connected serves as the piercing welding area.

[0010] The raised and recessed areas also work together and serve as the piercing and welding area.

[0011] Furthermore, the length of the main side cover plate is less than the length of the secondary side cover plate; the edges where the main side cover plate and the secondary side cover plate meet are fitted together.

[0012] A piercing welding device includes a cabinet, a work platform, a fixed base, piercing welding components, and an adjustment component;

[0013] The cabinet is equipped with a work platform, and the work platform is equipped with a fixed base for positioning and placing the door side cover.

[0014] The piercing and welding assembly is mounted on the work platform via an adjustment component, which allows for adjustment of the position of the piercing and welding assembly.

[0015] The piercing welding assembly is used to perform piercing welding on the side cover of the vehicle door.

[0016] Furthermore, the adjustment assembly includes an adjustment support frame, an adjustment cylinder, an adjustment base, and an adjustment slide rail;

[0017] The adjustment support frame is installed on the working platform, the adjustment cylinder and the adjustment slide rail are installed on the adjustment support frame, the adjustment base is installed on the adjustment slide rail via a slider, and the output end of the adjustment cylinder is connected to the adjustment base to realize the movement of the adjustment base;

[0018] The piercing welding assembly is installed onto the adjustment base.

[0019] Furthermore, the piercing welding assembly includes a piercing welding head, a preload rod, and an air blowing tube;

[0020] The piercing welding head, pre-pressure rod, and air blowing pipe are all installed on the adjustment base. The pre-pressure rod is located on one side of the piercing welding head and is used to press the side cover of the car door.

[0021] The air blowing pipe is located on the rear side of the piercing welding head, and its port is positioned higher than the welding end of the piercing welding head, for cooling the product after welding.

[0022] Furthermore, the piercing welding assembly corresponds one-to-one with the piercing welding area of ​​the door side cover.

[0023] Compared with the prior art, the door side cover and the piercing welding device therefor described in this utility model have the following advantages:

[0024] (1) The side cover of the car door and the piercing welding device therefor described in this utility model have low equipment cost and the welding area is hidden and does not require subsequent grinding, thus saving labor costs, improving work efficiency and product quality.

[0025] (2) The side cover of the car door and the piercing welding device therefor described in this utility model realizes flexible adjustment of the welding head position, adapts to different specifications of car door cover, and improves the equipment versatility; the pre-pressure rod presses the cover before welding to prevent displacement and ensure welding consistency; the air blowing pipe accelerates cooling, reduces the heat-affected zone, and avoids workpiece deformation or oxidation. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 This is a schematic diagram of the door side cover plate described in an embodiment of the present utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the door side cover plate described in an embodiment of the present utility model. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the main side cover plate according to an embodiment of the present utility model;

[0030] Figure 4 This is a schematic diagram of the secondary side cover plate according to an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the piercing and welding device described in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram showing the connection between the piercing welding assembly and the adjustment assembly described in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Main side cover plate; 11. Connecting piece; 12. Connecting hole; 13. Positioning hole; 14. Raised area; 2. Secondary side cover plate; 21. Connecting post; 22. Buckle; 23. Positioning post; 24. Recessed area; 3. Cabinet; 4. Work platform; 5. Fixed base; 6. Piercing welding assembly; 61. Piercing welding head; 62. Preload rod; 63. Air blowing pipe; 7. Adjustment assembly; 71. Adjustment support frame; 72. Adjustment cylinder; 73. Adjustment base; 74. Adjustment slide rail. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Car door side panel, such as Figures 1-4 As shown, it includes a main side cover plate 1 and a secondary side cover plate 2. The side of the main side cover plate 1 is provided with a plurality of connecting pieces 11, and the connecting pieces 11 are provided with connecting holes 12.

[0040] The secondary side cover plate 2 has a connecting post 21 corresponding to the connecting hole 12 on one side and a number of buckles 22 on the other side.

[0041] The main side cover plate 1 is also provided with a positioning hole 13 at one end, and the secondary side cover plate 2 is provided with a positioning post 23 corresponding to the positioning hole 13.

[0042] Two raised areas 14 are provided between the positioning hole 13 and the connecting hole 12 of the main side cover plate 1, and two recessed areas 24 corresponding to the pre-raised areas 14 are provided between the positioning post 23 and the connecting post 21 of the secondary side cover plate 2.

[0043] The connecting post 21 is sleeved to the connecting hole 12, and the positioning post 23 is sleeved to the positioning hole 13, so as to realize the connection between the main side cover plate 1 and the secondary side cover plate 2. The position where the positioning post 23 and the positioning hole 13 are connected serves as the piercing welding area.

[0044] The raised area 14 and the recessed area 24 also cooperate and serve as the piercing welding area.

[0045] The main and secondary side cover plates 2 adopt a split structure, which reduces the complexity of the mold, improves the material utilization rate, and is suitable for the combination of different materials.

[0046] Preferably, the length of the main side cover plate 1 is less than the length of the secondary side cover plate 2; the edges where the main side cover plate 1 and the secondary side cover plate 2 meet are fitted together.

[0047] A piercing welding device, such as Figure 5 Figure 6 As shown, it includes a cabinet 3, a work platform 4, a fixed base 5, a piercing welding assembly 6, and an adjustment assembly 7;

[0048] The cabinet 3 is equipped with a work platform 4, and the work platform 4 is equipped with a fixed base 5. The fixed base 5 is used to position and place the side cover of the vehicle door.

[0049] The piercing and welding assembly 6 is mounted on the working platform 4 via an adjustment assembly, which can adjust the position of the piercing and welding assembly 6.

[0050] The piercing welding assembly 6 is used to perform piercing welding on the side cover of the car door.

[0051] Preferably, the adjustment component 7 includes an adjustment support frame 71, an adjustment cylinder 72, an adjustment base 73, and an adjustment slide rail 74; enabling flexible adjustment of the welding head position, adapting to different specifications of door panels, and improving the equipment's versatility.

[0052] The adjustment support frame 71 is installed on the working platform 4, the adjustment cylinder 72 and the adjustment slide rail 74 are installed on the adjustment support frame 71, the adjustment base 73 is installed on the adjustment slide rail 74 via a slider, and the output end of the adjustment cylinder 72 is connected to the adjustment base 73 to realize the movement of the adjustment base 73;

[0053] The piercing welding assembly 6 is installed onto the adjustment base 73.

[0054] Preferably, the piercing welding assembly 6 includes a piercing welding head 61, a pre-compression rod 62, and an air blowing pipe 63;

[0055] The piercing welding head 61, the pre-pressure rod 62, and the air blowing pipe 63 are all installed on the adjusting base 73. The pre-pressure rod 62 is located on one side of the piercing welding head 61 and is used to press the door side cover plate; the cover plate is pressed before welding to prevent displacement and ensure welding consistency.

[0056] The air blowing pipe 63 is located on the rear side of the piercing welding head 61, and its port position is higher than the welding end of the piercing welding head 61. It is used to cool the product after welding, reduce the heat-affected zone, and avoid workpiece deformation or oxidation.

[0057] Preferably, the piercing welding assembly 6 corresponds one-to-one with the piercing welding area of ​​the door side cover.

[0058] Preferably, two workstations are set up on the cabinet 3 for simultaneous piercing and welding operations.

[0059] Preferably, the cabinet 3 is also equipped with a beam sensor to prevent workers from accidentally entering during the piercing welding process and causing safety hazards to the workers.

[0060] Compared to traditional laser welding or spot welding, piercing welding has lower equipment costs and no hidden welding area, saving labor costs; the split cover plate structure allows for partial replacement of damaged parts, reducing maintenance costs; this application, through innovative cover plate structure design combined with a dedicated piercing welding device, optimizes production efficiency, cost and process adaptability while ensuring connection strength and assembly accuracy, making it suitable for the trend of automotive lightweighting and modular manufacturing.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door side cover, characterized in that: It includes a main side cover plate and a secondary side cover plate. The side of the main side cover plate is provided with several connecting pieces, and the connecting pieces are provided with connecting holes. The secondary side cover plate has a connecting post on one side corresponding to the connecting hole, and a number of buckles on the other side. The main side cover plate is also provided with a positioning hole at one end, and the secondary side cover plate is provided with a positioning post corresponding to the positioning hole; Two raised areas are provided between the positioning hole and the connecting hole of the main side cover plate, and two recessed areas corresponding to the pre-raised areas are provided between the positioning post and the connecting post of the secondary side cover plate. The connecting post is sleeved to the connecting hole, and the positioning post is sleeved to the positioning hole to realize the connection between the main side cover plate and the secondary side cover plate. The position where the positioning post and the positioning hole are connected serves as the piercing welding area. The raised and recessed areas also work together and serve as the piercing and welding area.

2. The door side cover according to claim 1, characterized in that: The length of the main side cover plate is less than the length of the secondary side cover plate; the edges where the main side cover plate and the secondary side cover plate meet are fitted together.

3. A piercing welding device for use on a door side cover panel as described in any one of claims 1-2, characterized in that: Includes cabinets, work platforms, mounting bases, piercing welding components, and adjustment components; The cabinet is equipped with a work platform, and the work platform is equipped with a fixed base for positioning and placing the door side cover. The piercing and welding assembly is mounted on the work platform via an adjustment component, which allows for adjustment of the position of the piercing and welding assembly. The piercing welding assembly is used to perform piercing welding on the side cover of the vehicle door.

4. The piercing welding device according to claim 3, characterized in that: The adjustment assembly includes an adjustment support frame, an adjustment cylinder, an adjustment base, and an adjustment slide rail; The adjustment support frame is installed on the working platform, the adjustment cylinder and the adjustment slide rail are installed on the adjustment support frame, the adjustment base is installed on the adjustment slide rail via a slider, and the output end of the adjustment cylinder is connected to the adjustment base to realize the movement of the adjustment base; The piercing welding assembly is installed onto the adjustment base.

5. The piercing welding device according to claim 4, characterized in that: The piercing welding assembly includes a piercing welding head, a preload rod, and an air blowing tube; The piercing welding head, pre-pressure rod, and air blowing pipe are all installed on the adjustment base. The pre-pressure rod is located on one side of the piercing welding head and is used to press the side cover of the car door. The air blowing pipe is located on the rear side of the piercing welding head, and its port is positioned higher than the welding end of the piercing welding head, for cooling the product after welding.

6. The piercing welding device according to claim 4, characterized in that: The puncture welding assembly corresponds one-to-one with the puncture welding area of ​​the door side cover.

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