An integrated welding and marking device for automotive door sill edge beam welding assembly

Abstract

This utility model discloses an integrated welding and marking device for automotive door sill beam welding assemblies, including a fixture base, a laser marking device, a servo welding gun, multiple L-shaped clamps, and a control box. The laser marking device and servo welding gun are fixed to the fixture base, and the L-shaped clamps are bolted to the top of the base, holding the door sill beam welding assembly. The servo welding gun is fixed to the upper part of the base via a bracket, performing welding above the part; the laser marking device is mounted on the bottom of the base via a fixed frame, performing back marking below the part. The control box is bolted to the side of the base, and cables connect the marking device and the welding gun via wiring channels. This device, through its integrated structure, simplifies the process flow, reduces part transfer, lowers the rate of missing, damaged, and misplaced QR codes, saves logistics time and equipment space, improves production efficiency and traceability reliability, and is suitable for the automated production of various door sill beam welding assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, and particularly relates to an integrated device for welding and coding of an automobile door sill side beam welding assembly. Background Art

[0002] In modern automobile manufacturing, the automobile door sill side beam, as an important part of the vehicle body structure, its welding quality directly affects the safety and durability of the vehicle. With the increasing requirements of automobile original equipment manufacturers (OEMs) for the traceability of component quality, the production of the door sill side beam welding assembly needs to meet strict process parameter recording and traceability requirements, such as conforming to the IATF 16949 standard. These requirements aim to ensure the traceability of component data during production, assembly and subsequent use to support fault analysis, quality audit and product improvement. Laser engraving of two-dimensional codes is a common traceability method. By engraving two-dimensional codes on the part surface, data such as production batch, welding parameters (such as temperature, pressure, time), operator information, etc. are recorded, which is convenient for the OEM to quickly retrieve through scanning.

[0003]

[0001] The utility model relates to the technical field of automobile manufacturing, and particularly relates to an integrated device for welding and coding of an automobile door sill side beam welding assembly. Background Art

[0002] In modern automobile manufacturing, the automobile door sill side beam, as an important part of the vehicle body structure, its welding quality directly affects the safety and durability of the vehicle. With the increasing requirements of automobile original equipment manufacturers (OEMs) for the traceability of component quality, the production of the door sill side beam welding assembly needs to meet strict process parameter recording and traceability requirements, such as conforming to the IATF 16949 standard. These requirements aim to ensure the traceability of component data during production, assembly and subsequent use to support fault analysis, quality audit and product improvement. Laser engraving of two-dimensional codes is a common traceability method. By engraving two-dimensional codes on the part surface, data such as production batch, welding parameters (such as temperature, pressure, time), operator information, etc. are recorded, which is convenient for the OEM to quickly retrieve through scanning.

[0003] The traditional process flow usually includes the following steps: First, use an independent laser engraving device to engrave two-dimensional codes on the door sill side beam; then, perform a code scanning verification to confirm the readability of the two-dimensional code; next, transfer to the welding station for welding; after that, store the process parameters through a data transfer system; finally, complete the offline. This separated process has multiple problems. First, the process is cumbersome, and multiple transfers increase the logistics time and manual intervention. According to industry data, the transfer link in the traditional production line can account for 20%-30% of the production time, significantly reducing the efficiency. Second, the failure rate is relatively high: there may be missing codes (two-dimensional codes not generated) in the laser engraving stage, with an incidence rate of about 2%-5%; the surface of the two-dimensional code is easily damaged during subsequent handling or welding, resulting in a scanning failure rate as high as 5%-10%; incorrect two-dimensional code positions also occur frequently due to inaccurate positioning. In addition, the independent equipment occupies a large space, requires additional tooling and personnel investment, increasing the production cost.

[0004] The core problem of the existing technology lies in the separation of the laser coding and welding processes. The traditional laser engraving equipment is relatively large and difficult to integrate with the welding fixture. Moreover, the welding process involves high temperature and high-precision requirements. If the two-dimensional code is engraved before welding, thermal deformation may affect the accuracy of the two-dimensional code; if engraved later, additional processes are required, increasing the complexity. In addition, the existing control systems are mostly designed in isolation, and the welding and coding data cannot be synchronized in real time, easily leading to data loss or delay. Some solutions in the industry, such as adding a vision inspection system to check the quality of the two-dimensional code, can only provide after-the-fact remedies and cannot solve the problem at the source. Other methods, such as using RFID tags, are costly and are easily interfered with on metal parts, making it difficult to be widely applied.

[0005] To address these issues, there is an urgent need for a device that integrates laser marking and welding into the same tooling. This device would fully utilize the spatial advantages of the fixture, achieve synchronous operation through integrated design, reduce transfer steps, and lower the incidence of missing codes, damage, and positional errors, thereby improving production efficiency and traceability reliability. Utility Model Content

[0006] In view of this, the purpose of this utility model is to solve the problems of cumbersome process, high failure rate and quality risks in the processing of existing automotive door sill beam welding assemblies, and to provide an integrated welding and marking device. By integrating the laser marking device and the servo welding gun into the same fixture base, the structural layout and connection relationship are optimized, the process is simplified and the quality risk is reduced.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An integrated welding and marking device for automotive sill beam welding assemblies includes a fixture base, a laser marking device, a servo welding gun, multiple L-shaped clamps, and a control box. The laser marking device and the servo welding gun are fixed to the fixture base. The L-shaped clamps are fixed to the top of the fixture base for clamping and fixing the sill beam welding assembly. The servo welding gun is fixed to the upper part of the fixture base via a bracket, located above the sill beam welding assembly, for welding the sill beam welding assembly. The laser marking device is mounted on the bottom of the fixture base via a fixed frame, located below the sill beam welding assembly, for laser marking the back of the sill beam welding assembly. The control box is mounted on one side of the fixture base via a fixed connector and connected to the laser marking device and the servo welding gun via a cable for synchronous control of welding and marking.

[0009] Furthermore, multiple L-shaped clamps are fixed to the top of the clamp base by bolts and are spaced apart along the length of the clamp base.

[0010] Furthermore, the laser marking device includes a fiber laser, which is connected to the bottom of the fixture base via a fixed frame.

[0011] Furthermore, the bracket of the servo welding gun is fixedly connected to the fixture base by bolts.

[0012] Furthermore, the control box is bolted to the side of the fixture base, and the cable is connected to the laser marking device and the servo welding gun through a wiring groove.

[0013] Furthermore, the number of L-shaped clamps is 3 to 6, and each L-shaped clamp is fixed to the clamp base by a detachable connector.

[0014] Furthermore, the fixture base is a rectangular metal frame with multiple mounting slots.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention integrates a laser marking device and a servo welding gun onto a single fixture base, using L-shaped clamps to secure the door sill beam welding assembly. This optimizes the structural layout and connection relationships, significantly simplifying the process flow and eliminating multiple part transfer steps inherent in traditional separate processes, reducing logistics time by approximately 20%-30%. Multiple L-shaped clamps, secured with bolts and spaced apart, ensure accurate part positioning and reduce QR code position errors and missing code rates (from 2%-5% to near zero). The laser marking device is located below the part, preventing the high welding temperatures from affecting QR code quality and reducing surface damage rates (from 5%-10% to below 1%). The control box connects to the equipment via cables and wiring channels, resulting in a compact structure that reduces tooling and personnel input, saving approximately 15% of equipment space. The overall design improves production efficiency, enhances traceability reliability, meets the high-quality, high-efficiency traceability requirements of automotive OEMs, and is suitable for the automated production of various door sill beam welding assemblies.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the integrated welding and marking device for the automotive door sill beam welding assembly in this utility model.

[0020] Figure 2 This is a schematic diagram from another direction of the integrated welding and marking device for the automotive door sill beam welding assembly in this utility model.

[0021] Figure 3 This is a side view of the integrated welding and marking device for the automotive door sill beam welding assembly in this utility model.

[0022] Figure 4 This is a top view of the integrated welding and marking device for the automotive door sill beam welding assembly in this utility model.

[0023] Attached reference numerals: 1-Laser marking device; 2-Clamp base; 3-L-type clamp; 4-Sill edge beam welding assembly; 5-Servo welding gun; 6-Control box. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] 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," "right," "front," and "rear" 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 utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] Example 1

[0028] like Figures 1-4 As shown, this utility model discloses an integrated welding and marking device for automotive door sill beam welding assemblies. It includes a clamp base 2, which is a rectangular metal frame with multiple mounting slots on the top for fixing L-shaped clamps 3. Multiple L-shaped clamps 3 are bolted to the top of the clamp base 2 and are spaced apart along the length of the clamp base 2, with a quantity of 3 to 6, for clamping and fixing the door sill beam welding assembly 4. Each L-shaped clamp 3 is connected to the clamp base 2 via a detachable connector (such as a bolt or clip), facilitating adjustment to accommodate door sill beam welding assemblies 4 of different sizes.

[0029] The servo welding gun 5 is fixed to the upper part of the fixture base 2 by a bracket, which is bolted to the mounting slot of the fixture base 2. The servo welding gun 5 is located above the sill beam welding assembly 4 and is used for welding operations. The laser marking device 1 includes a fiber laser and is mounted on the bottom of the fixture base 2 by a fixed frame. The fixed frame is a metal frame and is bolted to the mounting slot of the fixture base 2. The laser marking device 1 is located below the sill beam welding assembly 4 and is used to engrave QR codes on its back. A control box 6 is bolted to one side of the fixture base 2. The control box 6 is connected to the laser marking device 1 and the servo welding gun 5 through a cable in a wiring slot to coordinate their operation.

[0030] The working principle of this utility model is as follows: the threshold beam welding assembly 4 is placed on and fixed on the L-shaped clamp 3, the servo welding gun 5 is positioned above the part by the bracket for welding, and at the same time the laser marking device 1 engraves a QR code on the bottom of the part. The control box 6 transmits signals through the cable to ensure coordinated operation. All components are integrated into the fixture base 2, which has a compact structure and reduces the number of parts transfer steps.

[0031] Compared with the prior art, this utility model achieves integrated operation of welding and marking by fixing the laser marking device 1 and the servo welding gun 5 to the same fixture base 2, utilizing the precise positioning of the L-shaped holder 3 and the connection structure of the control box 6, simplifying the process flow, reducing the incidence of missing codes, damage and positional errors, and improving production efficiency.

[0032] The embodiments of this utility model are not limited to those described above. For example, the number and position of the mounting slots of the clamp base 2 can be adjusted according to actual production needs; the specific number of L-shaped clamps 3 can be selected between 3 and 6 according to the size variation of the sill edge beam welding assembly; the material and connection method of the fixing frame can also be optimized as needed.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated welding and marking device for automotive door sill edge beam welding assembly, characterized in that, The system includes a fixture base, a laser marking device, a servo welding torch, multiple L-shaped clamps, and a control box. The laser marking device and the servo welding torch are fixed to the fixture base. The L-shaped clamps are fixed to the top of the fixture base and are used to clamp and fix the sill beam welding assembly. The servo welding torch is fixed to the upper part of the fixture base via a bracket, located above the sill beam welding assembly, and is used to weld the sill beam welding assembly. The laser marking device is installed at the bottom of the fixture base via a fixed frame, located below the sill beam welding assembly, and is used to laser mark the back of the sill beam welding assembly. The control box is installed on one side of the fixture base via a fixed connector and is connected to the laser marking device and the servo welding torch via a cable to achieve synchronous control of welding and marking.

2. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, Multiple L-shaped clamps are fixed to the top of the clamp base by bolts and are spaced apart along the length of the clamp base.

3. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, The laser marking device includes a fiber laser, which is connected to the bottom of the fixture base via a fixed frame.

4. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, The bracket of the servo welding gun is fixedly connected to the fixture base by bolts.

5. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, The control box is bolted to the side of the fixture base, and the cable is connected to the laser marking device and the servo welding gun through a wiring groove.

6. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, The number of L-shaped clamps is 3 to 6, and each L-shaped clamp is fixed to the clamp base by a detachable connector.

7. The integrated welding and marking device for the automotive sill edge beam welding assembly according to claim 1, characterized in that, The fixture base is a rectangular metal frame with multiple mounting slots.

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