Multifunctional welding fixture for welding vehicle seat frame

By designing a multifunctional welding fixture and utilizing a combination of support clips and magnetic plates, the problem of insufficient adaptability of welding fixtures under different automotive platforms was solved, achieving stable welding and efficient welding results for seat frames.

CN224265970UActive Publication Date: 2026-05-22WUHU MINGDA AUTOMOTIVE SEAT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU MINGDA AUTOMOTIVE SEAT CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing welding fixtures lack versatility when adapting to vehicle seat frames on different automotive platforms, resulting in poor welding results and deformation.

Method used

A multifunctional welding fixture was designed, including a base frame, support components and auxiliary support components. By using a combination of support clips and magnetic plates, it can adapt to seat frames under different automotive platforms, ensuring stability and accuracy during the welding process.

Benefits of technology

Stable welding of seat frames with different configurations on the same platform has been achieved, avoiding misalignment and deformation during the welding process and improving the welding effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle seat framework welding is with multifunctional welding fixture, belongs to welding fixture technical field, including basic chassis, support subassembly and auxiliary support spare, support subassembly includes support base, adjusting lever group, support rod and support fastener, support base installs at the both sides of basic chassis, and multiple threaded rods constitute adjusting lever group, first place seat framework on support subassembly, wherein according to the modeling of seat framework, adjust each support rod, so that support fastener clamps seat framework, when adjusting, can through up and down adjusting nut and cooperate adjusting lever sleeve, when using, support fastener passes through U type spare and clamps seat framework, wherein the framework cross bar for welding on seat framework is placed on the notched opening of auxiliary support spare, before or during welding, whole magnetic sheet adsorbs framework cross bar, avoids the misplacement caused by shaking etc., causes the last welding deformation or the bad welding effect.
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Description

Technical Field

[0001] This utility model belongs to the field of welding fixture technology, specifically a multi-functional welding fixture for welding vehicle seat frames. Background Technology

[0002] Vehicle seats typically consist of a metal frame and a cushion made of fabric, cloth, or plastic. The frame is often manufactured using welding. Current seat frame welding processes generally involve fixing the frame with simple tooling or fixtures, followed by welding by manual labor or robotic arms.

[0003] However, current welding fixtures lack versatility. Vehicle seat frames under the same automotive platform have similar structures, differing only in curvature, angle, and welding beams. Therefore, a universal fixture is needed that can be adapted to weld seat frames under the same automotive platform. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this invention is to solve the problems mentioned in the background above.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model discloses a multi-functional welding fixture for welding vehicle seat frames, comprising a base frame, a support assembly, and auxiliary support components. The support assembly includes a support base, an adjusting rod assembly, a support rod, and a support clamp. The support base is installed on both sides of the base frame. Multiple threaded rods form an adjusting rod assembly, which is installed on the base frame. One end of the support rod is provided with a rod sleeve, and the other end is provided with a support clamp. The support rod is fitted onto the threaded rod through the rod sleeve, and the threaded rod is provided with a nut for clamping the rod sleeve. The support clamp holds the seat frame in place.

[0009] Preferably, the base frame is provided with a crossbar, and an auxiliary support is fitted onto the crossbar. The auxiliary support has multiple slots, and the frame crossbar is placed in the slots. The frame crossbar is welded to the seat frame.

[0010] Preferably, the auxiliary support includes a bottom plate and a support plate. The support plate is bolted to the top of the bottom plate. The bottom plate has through holes through which the crossbar passes. The bottom plate also has locking screws.

[0011] Preferably, the support clip includes a U-shaped piece, a knob, and a locking rod. The seat frame is clipped into the U-shaped piece, the locking rod is threadedly connected to the U-shaped piece, the knob is mounted on the locking rod, and the locking rod presses down on the seat frame.

[0012] Preferably, the upper end of the support plate has an arc-shaped structure, and the upper contour of the support plate is the same as the arc of the seat frame. One set of support plates corresponds to the same type of seat frame.

[0013] Preferably, the groove has a countersunk opening, the bottom of the countersunk opening has a protective cover, a magnetic absorbing piece is installed inside the countersunk opening, and the protective cover holds the magnetic absorbing piece in place.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0016] This utility model discloses a multi-functional welding fixture for welding vehicle seat frames. In use, the seat frame is first placed on the support assembly. Each support rod is individually adjusted according to the shape of the seat frame, causing the support clips to hold the seat frame in place. Adjustment is achieved by using upper and lower adjusting nuts in conjunction with adjusting rod sleeves. When in use, the support clips hold the seat frame in place via U-shaped parts. The frame crossbars, which are welded to the seat frame, are placed in the slots of the auxiliary support components. Before or during welding, the entire magnetic chuck adheres to the frame crossbars, preventing misalignment caused by shaking, which could lead to welding deformation or poor welding results.

[0017] Among them, the seat frames of different configurations of the vehicle body under the same platform are the same, but the crossbars used are different. Some crossbars are equipped with other things. In this case, when the auxiliary support is supported, it is necessary to avoid the structure. Therefore, the design structure is designed so that the position of the support plate can be adjusted by moving the bottom plate on the crossbar. After adjustment, it can be locked with locking screws. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the multifunctional welding fixture for welding vehicle seat frames according to this utility model.

[0019] Figure 2 This is a structural schematic diagram of the multifunctional welding fixture for welding vehicle seat frames according to the present invention.

[0020] Figure 3 This is a structural schematic diagram of the auxiliary support component of the multifunctional welding fixture for welding vehicle seat frames according to this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 100. Basic frame; 110. Crossbars;

[0023] 200. Support assembly; 210. Support base; 220. Adjusting rod assembly; 221. Threaded rod; 222. Nut; 230. Support rod; 231. Rod sleeve; 240. Support clip; 241. U-shaped part; 242. Knob; 243. Locking rod;

[0024] 300, Auxiliary support component; 301, Groove; 310, Bottom plate; 311, Locking screw; 320, Support plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] See attached document Figure 1-3 The multi-functional welding fixture for welding vehicle seat frames in this embodiment includes a base frame 100, a support assembly 200, and an auxiliary support component 300. The support assembly 200 includes a support base 210, an adjusting rod group 220, a support rod 230, and a support clamp 240. The support base 210 is installed on both sides of the base frame 100. Multiple threaded rods 221 constitute the adjusting rod group 220. The threaded rods 221 are installed on the base frame 100. One end of the support rod 230 is provided with a rod sleeve 231, and the other end is provided with a support clamp 240. The support rod 230 is sleeved on the threaded rod 221 through the rod sleeve 231. The threaded rod 221 is provided with a nut 222 for clamping the rod sleeve 231. The support clamp 240 clamps the seat frame.

[0033] In this embodiment, a crossbar 110 is provided on the base frame 100, and an auxiliary support 300 is fitted on the crossbar 110. The auxiliary support 300 is provided with multiple slots 301, and the frame crossbar 110 is placed in the slots 301. The frame crossbar 110 is welded to the seat frame.

[0034] The auxiliary support 300 in this embodiment includes a bottom plate 310 and a support plate 320. The support plate 320 is bolted to the top of the bottom plate 310. The bottom plate 310 has a through hole through which the crossbar 110 passes. The bottom plate 310 has a locking screw 311.

[0035] The support clip 240 in this embodiment includes a U-shaped part 241, a knob 242, and a locking rod 243. The seat frame is clipped in the U-shaped part 241, the locking rod 243 is threadedly connected to the U-shaped part 241, the knob 242 is mounted on the locking rod 243, and the locking rod 243 presses the seat frame. It should be noted that the U-shaped part 241 can rotate axially for adjustment, which facilitates stable clipping of the seat frame.

[0036] In this embodiment, the upper end of the support plate 320 is an arc-shaped structure. The upper contour of the support plate 320 is the same as the arc shape of the seat frame. A set of support plates 320 corresponds to the same type of seat frame.

[0037] In this embodiment, the slot 301 is provided with a recess, the bottom of which is provided with a protective cover. A magnetic absorbing piece is installed inside the recess, and the protective cover presses against the magnetic absorbing piece.

[0038] Working principle: In use, the seat frame is first placed on the support assembly 200. Each support rod 230 is adjusted individually according to the shape of the seat frame so that the support clip 240 locks the seat frame. Adjustment is done by adjusting the upper and lower nuts 222 in conjunction with the adjusting rod sleeve 231. When in use, the support clip 240 locks the seat frame with the U-shaped part 241. The frame crossbar 110, which is used to weld onto the seat frame, is placed on the slot 301 of the auxiliary support 300. Before or during welding, the entire magnetic piece attracts the frame crossbar 110 to avoid misalignment caused by shaking, which could lead to welding deformation or poor welding effect.

[0039] Among them, the seat frames of different configurations of the vehicle body under the same platform are the same, but the crossbars 110 used are different. Some crossbars 110 are equipped with other things. In this case, when the auxiliary support 300 supports, it needs to avoid the structure. Therefore, the design structure is designed so that the position of the support plate 320 can be adjusted by moving the bottom plate 310 on the crossbar 110. After adjustment, it can be locked by locking screw 311.

[0040] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-functional welding fixture for welding vehicle seat frames, characterized in that: The system includes a base frame (100), a support assembly (200), and auxiliary support components (300). The support assembly (200) includes a support base (210), an adjusting rod group (220), a support rod (230), and a support clip (240). The support base (210) is installed on both sides of the base frame (100). Multiple threaded rods (221) constitute the adjusting rod group (220). The threaded rods (221) are installed on the base frame (100). One end of the support rod (230) is provided with a rod sleeve (231), and the other end is provided with a support clip (240). The support rod (230) is sleeved on the threaded rod (221) through the rod sleeve (231). The threaded rod (221) is provided with a nut (222) for clamping the rod sleeve (231). The support clip (240) clamps the seat frame.

2. The multi-functional welding fixture for welding vehicle seat frames according to claim 1, characterized in that: The base frame (100) is provided with a crossbar (110), the auxiliary support (300) is sleeved on the crossbar (110), the auxiliary support (300) is provided with a plurality of slots (301), the frame crossbar (110) is placed in the slots (301), and the frame crossbar (110) is welded to the seat frame.

3. The multi-functional welding fixture for welding vehicle seat frames according to claim 2, characterized in that: The auxiliary support (300) includes a bottom plate (310) and a support plate (320). The support plate (320) is bolted to the top of the bottom plate (310). The bottom plate (310) has a through hole through which the crossbar (110) passes. The bottom plate (310) has a locking screw (311).

4. The multi-functional welding fixture for welding vehicle seat frames according to claim 1, characterized in that: The support clip (240) includes a U-shaped part (241), a knob (242) and a locking rod (243). The seat frame is clipped in the U-shaped part (241). The locking rod (243) is threadedly connected to the U-shaped part (241). The knob (242) is mounted on the locking rod (243). The locking rod (243) presses down on the seat frame.

5. The multi-functional welding fixture for welding vehicle seat frames according to claim 3, characterized in that: The upper end of the support plate (320) has an arc-shaped structure, and the upper contour of the support plate (320) is consistent with... The seat frames have the same arc shape, and each type of seat frame corresponds to a set of support plates (320).

6. The multi-functional welding fixture for welding vehicle seat frames according to claim 2, characterized in that: The slot (301) is provided with a recess, the bottom of the recess is provided with a protective cover, a magnetic absorbing piece is installed in the recess, and the protective cover is used to hold the magnetic absorbing piece in place.