A limiting clamp for vehicle workpiece welding

Abstract

The utility model relates to vehicle seat processing technical field especially relates to a kind of limit fixture for vehicle workpiece welding. Including base plate, the suspension arm body is fastened and assembled in the base plate one side, the inside assembly of base plate is equipped with multiple push rod motor, the output rod of push rod motor is penetrated and is equipped with multiple first screw hole, and output rod sleeve is equipped with connecting barrel, the connecting barrel is penetrated and is equipped with multiple second screw hole, by first screw hole, second screw hole can be fastened and assembled with the bolt for workpiece limiting, the operating guard plate is fastened and assembled in the other side of connecting barrel, the central side of assembly guard plate is equipped with the slot for the operation of welding device, and slot is in inwards recessed shape. The technical problem to be solved by the utility model is: in the prior art vehicle workpiece splicing welding process, the operation angle and operation height of workbench are limited;Lack of security guarantee when welding operation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle seat processing technology, and in particular to a limiting fixture for welding vehicle workpieces. Background Technology

[0002] Vehicle manufacturing involves the processing and assembly of a large number of metal parts. In order to ensure structural strength and stability, the welding process of the parts is highly demanding. Moreover, the parts have diverse shapes and sizes, and there are strict requirements for positioning, clamping and welding accuracy. Therefore, the positioning and fixing method of the parts before welding is particularly important.

[0003] In existing manufacturing processes, there are many types of vehicle parts that require assembly and welding, such as door frames, chassis connectors, and reinforcing rib structures. The usual practice is to assemble two metal parts, place them on a workbench, manually position them, and then weld them using a welding torch. However, the assembled parts are prone to misalignment, the platform is not securely clamped, the operation is cumbersome, and there is a lack of safety. Furthermore, the fixed height of the workbench hinders the rapid adjustment of workpieces of different sizes, severely impacting welding efficiency and quality. Utility Model Content

[0004] The technical problem this utility model aims to solve is that in the existing technology, the working angle and working height of the workbench are limited during the splicing and welding process of vehicle parts; and there is a lack of safety assurance during welding operations.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a limiting fixture for welding vehicle workpieces, including a base plate, a suspension arm body is fastened to one side of the base plate, a plurality of push rod motors are assembled inside the base plate, the output rods of the push rod motors are provided with a plurality of first screw holes, and the output rods are fitted with connecting cylinders, the connecting cylinders are provided with a plurality of second screw holes, and bolts for limiting the workpiece can be fastened through the first screw holes and the second screw holes, and a working guard plate is fastened to the other side of the connecting cylinder, the center side of the mounting guard plate is provided with a through groove for the welding device to operate, and the through groove is concave inward.

[0006] As a further improvement of this utility model, the outer wall of one side of the connecting cylinder is threaded, and the two sides of the working guard plate are fixedly connected with the assembly cylinder, which is threadedly connected to the connecting cylinder.

[0007] As a further improvement of this utility model, a transparent observation plate is fixedly provided on each side of the through groove, and the observation plate is made of quartz glass with a trapezoidal structure.

[0008] As a further improvement of this utility model, the top and bottom ends of the suspension arm are respectively fixedly connected to the assembly plates, and fastening bolts are provided through the assembly plates. A protrusion that fits into the base plate is fixedly provided on one side of the suspension arm, and the suspension arm and the base plate are fastened together by bolts.

[0009] As a further improvement of this utility model, the four corners of the assembly guard plate are fixedly connected with abutment plates, and the base plate is provided with abutment platforms that match the abutment plates.

[0010] As a further improvement of this utility model, the push rod motor is configured as two, and is symmetrically arranged on one side of the substrate.

[0011] The beneficial effects of this invention are as follows: By incorporating a suspension arm on the base plate, the entire device offers greater spatial flexibility, breaking the limitations of a fixed workbench height in traditional methods. It allows for rapid adjustment to workpieces of varying sizes and shapes, such as car door frames, chassis connectors, and reinforcing rib structures, improving welding adaptability and convenience. The multi-point limiting and clamping structure formed by the push rod motor, connecting cylinder, and assembly guard plate provides electric adjustment, enabling precise clamping and preventing misalignment due to improper manual positioning. Simultaneously, the through-groove in the center of the assembly guard plate facilitates deep insertion of the welding torch, while an observation board around the perimeter aids in visual operation, further enhancing operational safety and welding quality. The entire device can be quickly assembled and disassembled, with a robust and reliable structure, making it particularly suitable for applications requiring high efficiency, accuracy, and safety in batch welding operations. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of a limiting fixture for welding vehicle workpieces according to this utility model;

[0013] Figure 2 This is a disassembly and display diagram of a limiting fixture for welding vehicle workpieces according to this utility model;

[0014] Figure 3 This is a component illustration of a limiting fixture for welding vehicle workpieces according to this utility model;

[0015] Figure 4 This is a partial view of a limiting fixture for welding vehicle workpieces according to this utility model.

[0016] As shown in the figure: 1. Base plate; 2. Suspension arm; 3. Push rod motor; 4. Connecting cylinder; 5. Assembly guard plate; 6. Through slot; 7. Assembly cylinder; 8. Observation plate; 9. Abutment plate. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] This utility model provides a limiting fixture for welding vehicle workpieces, including a base plate 1.

[0021] As attached Figure 1 , 2 As shown, the fixture includes a base plate 1, which serves as the supporting and connecting body, providing the stability and load-bearing capacity of the overall structure and acting as the basic platform for assembling other components. A suspension arm 2 is fastened to one side of the base plate 1, suspending the base plate 1 and avoiding the problem of fixed workbench height in traditional systems. This provides greater spatial flexibility, facilitating welding operations on workpieces of different specifications and improving operational convenience and applicability. Two push rod motors 3 are installed inside the base plate 1 to drive the movement and clamping of the limiting structure. The symmetrical layout not only improves the balance of structural forces but also enhances the stability of the clamping process, ensuring that the workpiece does not shift during welding and optimizing welding accuracy and efficiency. The output rods of the push rod motors 3 have multiple first screw holes, which, together with the multiple second screw holes on the connecting cylinder 4, can be bolted together to form an adjustable structure for workpiece limiting. Precise control is achieved through electric push rod drive, improving the accuracy of workpiece positioning, reducing manual intervention, increasing automation, and addressing the problem of misalignment caused by manual operation in traditional systems.

[0022] As attached Figure 1 , 2As shown in Figures 3 and 4, an assembly guard plate 5 is fastened to the other end of the connecting cylinder 4. The assembly guard plate 5 serves to stabilize and clamp the workpiece. Simultaneously, a through groove 6 is provided on its central side for the welding device to pass through. This through groove 6 has an inwardly recessed structure, which not only facilitates the deep insertion of the welding torch but also forms an enclosed space, improving positioning rigidity and operational concentration. Transparent observation plates 8 are fixedly installed on both sides of the through groove 6. The observation plates 8 are made of trapezoidal quartz glass, possessing high-temperature resistance, allowing for auxiliary observation from both sides in the high-temperature welding environment, ensuring visibility of the welding process and improving operational safety. A thread is provided on one outer wall of the connecting cylinder 4, which is threaded to the assembly cylinders 7 fixedly connected to the assembly guard plate 5 on both sides, enabling quick loading and unloading and secure positioning, enhancing the assembly convenience and structural stability between components.

[0023] As attached Figure 2 As shown, mounting plates are fixedly connected to both the top and bottom of the suspension arm 2, and are connected by fastening bolts to form an adjustable assembly connection. A protrusion that fits into the base plate 1 is also provided on one side of the suspension arm 2. The suspension arm 2 and the base plate 1 are fastened together by bolts to form a stable assembly relationship, which makes the overall structure less prone to shaking during welding and improves the reliability of workpiece fixation.

[0024] As attached Figure 1 , 3 As shown in Figure 4, the four corners of the assembly guard plate 5 are fixedly connected with abutment plates 9, and the base plate 1 is provided with abutment platforms that match the abutment plates 9. This design is used to provide buffer support between the assembly guard plate 5 and the base plate 1, further improving the stability and safety of the entire fixture under stress, and preventing misalignment or structural damage caused by impact or uneven force.

[0025] Working Principle: In practical implementation, this invention first suspends the base plate 1 at a suitable working height by adjusting the position of the suspension arm 2 according to the size and shape of the workpiece to be welded. The assembly cylinders 7 on both sides of the assembly guard plate 5 are first threadedly connected to the connecting cylinder 4. Then, the two push rod motors 3 located inside the base plate 1 are activated, causing their output rods to push the connecting cylinder 4 forward, placing the two workpieces to be welded inside the connecting cylinder 4 and securing them with bolts on the outer side. The bolts pass through the first and second threaded holes at the output ends of the connecting cylinder 4 and the push rod motors 3, thus achieving multi-point positioning. After the workpiece is positioned, the through groove 6 on the center side of the assembly guard plate 5 provides a channel for the welding gun, allowing it to penetrate deep into the workpiece joint for precise welding, improving work efficiency and welding quality. Simultaneously, the observation plates 8 fixed on both sides of the through groove 6 are heat-resistant and have good transparency, allowing operators to observe the welding process and ensure controllability and safety. In addition, the abutment plates 9 fixed at the four corners of the mounting guard plate 5 cooperate with the abutment platform on the base plate 1 to form a buffer structure. After the output end of the push rod motor 3 is retracted inward, the workpiece can be abutted and limited, so as to achieve the goal of quick clamping, precise positioning and safe welding of the workpiece, and improve the welding quality, efficiency and safety assurance capabilities.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A limiting fixture for welding vehicle workpieces, comprising a base plate (1), characterized in that: A suspension arm (2) is fastened to one side of the substrate (1). Multiple push rod motors (3) are installed inside the substrate (1). The output rod of the push rod motor (3) has multiple first screw holes through it, and the output rod is fitted with a connecting cylinder (4). The connecting cylinder (4) has multiple second screw holes through it. Bolts for workpiece positioning can be fastened through the first screw holes and the second screw holes. An assembly guard plate (5) is fastened to the other side of the connecting cylinder (4). The assembly guard plate (5) has a through groove (6) for welding device operation on the center side, and the through groove (6) is concave inward.

2. The limiting fixture for welding vehicle workpieces according to claim 1, characterized in that: The outer wall of the connecting cylinder (4) is threaded on one side, and the assembly cylinder (7) is fixedly connected to both sides of the assembly guard plate (5). The assembly cylinder (7) is threadedly connected to the connecting cylinder (4).

3. The limiting fixture for welding vehicle workpieces according to claim 1, characterized in that: A transparent observation plate (8) is fixedly installed on each side of the groove (6), and the observation plate (8) is made of quartz glass with a trapezoidal structure.

4. The limiting fixture for welding vehicle workpieces according to claim 1, characterized in that: The top and bottom ends of the suspension arm (2) are respectively fixedly connected to the assembly plate, and the assembly plate is provided with fastening bolts. A protrusion that fits into the base plate (1) is fixedly provided on one side of the suspension arm (2), and the suspension arm (2) and the base plate (1) are fastened together by bolts.

5. A limiting fixture for welding vehicle workpieces according to claim 1, characterized in that: The mounting guard plate (5) is fixedly connected to the four corners of the mounting guard plate (9), and the base plate (1) is provided with abutment platforms that match the abutment plates (9).

6. A limiting fixture for welding vehicle workpieces according to claim 1, characterized in that: The push rod motor (3) is configured as two, and is symmetrically arranged on one side of the base plate (1).

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