Seat leg support multi-welding-procedure linear welding tool platform

By designing a single-line welding fixture platform for multiple welding processes of seat leg rests, the problem of traditional fixture platforms being unable to meet diverse welding needs has been solved. This enables flexible positioning and efficient switching of the fixture, thereby improving seat production efficiency and economic benefits.

CN223981355UActive Publication Date: 2026-03-10LANG RUI OU (SHANG HAI) JING MI JI XIE YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional welding fixture platforms are difficult to meet the diverse welding needs of leg support frames, and the tooling changes are cumbersome and the positioning is poor, which affects the efficiency of seat production.

Method used

Design a single-line welding fixture platform for multi-welding processes of seat leg supports, including station one and station two, equipped with 2-way and 4-way leg support frame fixtures, adopting a positioning mechanism and positioning components, utilizing the flexible positioning of positioning blocks and positioning columns, combined with the rapid installation and disassembly of fixing components, and realizing efficient switching of fixtures through photoelectric control switches.

Benefits of technology

It improves the utilization rate and production efficiency of the tooling platform, enables quick positioning and high-precision installation of tooling, simplifies the tooling change process, and reduces manufacturing and usage costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of seat manufacturing, particularly relates to a multi-welding-procedure linear welding tool platform for a seat leg support, and aims to solve the problems that the conventional single tool platform is difficult to meet the welding requirements of diversified leg support frameworks, and the conventional fixed structure platform is complicated in tool replacement, poor in positioning, easy to influence the seat production efficiency and the like. According to the technical scheme, the tool mounting device comprises a base, a first station and a second station are formed in the base, and the first station and the second station are used for mounting different tools correspondingly; the welding tool platform further comprises a plurality of tools used for clamping and assembling corresponding workpieces, and due to the double-station design of the welding tool platform, the tool utilization rate and the production efficiency are effectively improved; the positioning mechanism is innovatively matched with the positioning assembly, so that quick and high-precision mounting and positioning of the tool are realized, and the mounting efficiency is improved due to the flexible positioning mode; the fixing assembly is simple and reliable in design, the tool can be quickly disassembled, assembled and switched conveniently, and production flexibility is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to chair manufacturing technical field especially relates to a chair leg support multi-welding procedure linear welding tooling platform. BACKGROUND

[0002] In the chair manufacturing process, the welding procedure of leg support is an important link to ensure the stability and comfort of chair structure. In the welding processing of chair leg support, the corresponding welding tooling platform is often needed, but the traditional welding tooling platform still has the following problems in use:

[0003] For different types of leg support skeletons, such as 2-way leg support skeletons and 4-way leg support skeletons, their welding installation requirements are different, and the traditional single tooling platform cannot meet the diversified production requirements;

[0004] At the same time, a leg support component often needs to be sequentially completed on multiple tooling platforms. However, the existing welding tooling platforms are mostly fixed structures, which are inconvenient to replace the corresponding tooling, have problems such as complicated tooling replacement, poor installation positioning, low replacement efficiency, and affect the production efficiency of the chair.

[0005] In view of the above problems, the utility model file proposes a chair leg support multi-welding procedure linear welding tooling platform. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problems in the prior art that the traditional single tooling platform cannot meet the diversified leg support skeleton welding requirements, and the existing fixed structure platform tooling replacement is complicated, the positioning is poor, and the chair production efficiency is easily affected.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A chair leg support multi-welding procedure linear welding tooling platform comprises:

[0009] A base, the inside of the base is provided with a station one and a station two, and the station one and the station two are respectively used for installing different tooling;

[0010] It also includes a 2-way leg support frame OP10 assembly tooling, a 2-way leg support frame OP20 assembly tooling, a 4-way leg support frame OP10 assembly tooling, and a 4-way leg support frame OP20 assembly tooling. Each of these toolings includes a mounting plate. The 2-way leg support frame OP10 assembly tooling and the 2-way leg support frame OP20 assembly tooling are a set, and they are all used in conjunction with station one for welding and installing the leg support bracket assembly and the 2-way leg support frame welding assembly, respectively. The 4-way leg support frame OP10 assembly tooling and the 4-way leg support frame OP20 assembly tooling are a set, and they are all used in conjunction with station two for welding and installing the support frame assembly and the 4-way leg support frame welding assembly, respectively.

[0011] It also includes two sets of positioning mechanisms and multiple sets of positioning components. Both sets of positioning mechanisms are located on the base, and are located on both sides of workstation one and workstation two, respectively. The multiple sets of positioning components cooperate with the corresponding positioning mechanisms to realize the positioning and installation of the 2-way leg support frame OP10 assembly tooling, the 2-way leg support frame OP20 assembly tooling, the 4-way leg support frame OP10 assembly tooling, and the 4-way leg support frame OP20 assembly tooling, respectively.

[0012] It also includes multiple fixing components, with four fixing components forming a group. The multiple groups of fixing components are used to respectively realize the installation, fixing and quick switching of the 2-way leg support frame OP10 assembly tooling, the 2-way leg support frame OP20 assembly tooling, the 4-way leg support frame OP10 assembly tooling, and the 4-way leg support frame OP20 assembly tooling.

[0013] In one possible design, the positioning mechanism includes a positioning block and a positioning column fixedly mounted on the top of the base.

[0014] In one possible design, the positioning assembly includes a first positioning frame and a second positioning frame fixedly mounted on the bottom of the mounting plate. The first positioning frame and the second positioning frame are respectively located near the sides of the mounting plate. The bottom of the first positioning frame has a positioning groove, the inner wall of which cooperates with a positioning block. The interior of the second positioning frame has a positioning hole, the inner wall of which cooperates with a positioning post.

[0015] In one possible design, the fixing assembly includes a fixing bracket fixedly mounted on the bottom of the mounting plate, the fixing bracket being located at a corner of the base, the bottom of the fixing bracket engaging with the top of the base, the top of the base having two mounting holes forming a group, and both mounting holes corresponding to the fixing bracket, each mounting hole having a first positioning nut fixedly passing through its interior, and the fixing bracket having two second positioning nuts fixedly passing through its interior, each second positioning nut corresponding to a corresponding first positioning nut, and the internal threads of the corresponding second positioning nut and first positioning nut having the same positioning screw passing through them, to ensure that multiple tooling fixtures can be stably mounted on the base.

[0016] In one possible design, two mounting brackets are fixedly installed on the bottom of the base, with the two mounting brackets located near the two sides of the base respectively.

[0017] In one possible design, the top of each of the 2-way leg support frame OP10 assembly tooling, the 2-way leg support frame OP20 assembly tooling, the 4-way leg support frame OP10 assembly tooling, and the 4-way leg support frame OP20 assembly tooling is equipped with a photoelectric control switch for controlling the corresponding tooling.

[0018] In this application, during use, the user can first install the 2-way leg support frame OP10 assembly tooling and the 4-way leg support frame OP10 assembly tooling on the base, with the 2-way leg support frame OP10 assembly tooling located at position one and the 4-way leg support frame OP10 assembly tooling located at position two. During installation, the user only needs to ensure that the positioning block and positioning post can respectively snap into the positioning groove and positioning hole to complete the positioning of the corresponding tooling. Furthermore, due to the different shapes of the positioning post and positioning block, the user only needs to first complete the pre-positioning of the positioning post and positioning hole, and then only needs to slightly deflect the tooling to complete the snap-fit ​​positioning of the positioning block and positioning groove. This makes the positioning of the tooling more flexible and efficient than the structure that uses positioning posts and positioning holes on both sides. Moreover, after positioning is completed, multiple second The positioning nut is perfectly aligned with the corresponding first positioning nut. At this point, the user only needs to screw the corresponding positioning screw into the aligned second and first positioning nuts to fix the corresponding fixture. By controlling the corresponding photoelectric control switch, the user can assemble the leg support bracket assembly, support frame assembly, and other components on the 2-way leg support frame OP10 assembly fixture and the 4-way leg support frame OP10 assembly fixture, respectively. Afterwards, by removing the positioning screw, the user can quickly remove the 2-way leg support frame OP10 assembly fixture and the 4-way leg support frame OP10 assembly fixture, and then quickly switch to the 2-way leg support frame OP20 assembly fixture and the 4-way leg support frame OP20 assembly fixture. The positioning components and corresponding positioning screws are used to complete the quick installation, and the assembly and welding work of the 2-way leg support frame welding assembly and the 4-way leg support frame welding assembly can then be completed.

[0019] Beneficial effects: In this utility model, the one-line welding fixture platform for multi-welding processes of seat leg support, by setting up station one and station two, can simultaneously meet the welding requirements of 2-way leg support frame and 4-way leg support frame, thereby improving the utilization rate and production efficiency of the fixture platform.

[0020] In this utility model, the single-line welding fixture platform for multiple welding processes of seat leg rests, through the cooperation of a positioning mechanism and positioning components, and the positioning mechanism including a positioning block and a positioning column, which are respectively located on both sides of the corresponding workstation, makes the fixture more convenient and faster to install and position, and the positioning accuracy is higher; at the same time, the positioning block and the positioning column have different shapes, and the user can first complete the pre-positioning of the positioning column and the positioning hole, and then slightly deflect the fixture to complete the engagement and positioning of the positioning block and the positioning groove. This positioning method is more flexible and has higher installation efficiency.

[0021] In this utility model, the single-line welding fixture platform for multiple welding processes of seat leg rests, through the design of the fixing components, includes a fixing bracket, a first positioning nut and a second positioning nut. The second positioning nut and the first positioning nut are fixed together by positioning screws, thereby ensuring that the fixture can be stably installed on the base; this fixing method is simple and reliable, and facilitates quick disassembly and replacement of the fixture.

[0022] In this utility model, a one-line welding fixture platform for multiple welding processes of seat leg rests is provided. This fixture platform also has the function of quickly switching fixtures. Users only need to remove the positioning screws to quickly remove the current fixture and quickly switch to another fixture, thereby greatly improving production efficiency. At the same time, the fixture platform has a simple structure, is easy to operate, and is easy to maintain and repair, reducing manufacturing and usage costs.

[0023] In this invention, the single-line welding fixture platform for multiple welding processes of the seat leg support effectively improves the utilization rate of the fixture and production efficiency through a dual-station design. The innovative cooperation between the positioning mechanism and the positioning components achieves quick and high-precision positioning of the fixture installation, and its flexible positioning method further improves the installation efficiency. The design of the fixing components is simple and reliable, which facilitates quick disassembly and switching of the fixture, greatly improving production flexibility. The overall structure is simple and easy to use, with low maintenance costs, significantly reducing manufacturing and usage costs, and comprehensively improving the efficiency and economic benefits of the seat leg support welding process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a single-line welding fixture platform for multiple welding processes of a seat leg rest proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the top structure of the base of a one-line welding fixture platform for multiple welding processes of a seat leg rest proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the bottom structure of the base of a one-line welding fixture platform for multiple welding processes of a seat leg rest proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the positioning component structure of a one-line welding fixture platform for multiple welding processes of a seat leg rest proposed in this utility model.

[0028] In the diagram: 1. Base; 2. Station 1; 3. Station 2; 4. 2-way leg support frame OP10 assembly tooling; 5. 2-way leg support frame OP20 assembly tooling; 6. 4-way leg support frame OP10 assembly tooling; 7. 4-way leg support frame OP20 assembly tooling; 8. Positioning block; 9. Positioning post; 10. Mounting bracket; 11. Mounting hole; 12. First positioning nut; 13. Positioning screw; 14. Mounting plate; 15. Fixed bracket; 16. Second positioning nut; 17. First positioning frame; 18. Positioning groove; 19. Second positioning frame; 20. Positioning hole; 21. Leg support bracket assembly; 22. 2-way leg support frame welding assembly; 23. Support frame assembly; 24. 4-way leg support frame welding assembly; 25. Photoelectric control switch. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1: Refer to Figures 1-4 A welding fixture platform, comprising:

[0031] Base 1. The interior of base 1 has two workstations, 2 and 3, which are used for installing different tooling fixtures. Specifically, the design of workstations 2 and 3 allows multiple welding processes to be performed on the same platform, improving work efficiency.

[0032] In the design of the tooling platform, this embodiment also includes tooling 4 for the 2-way leg support frame OP10 assembly, tooling 5 for the 2-way leg support frame OP20 assembly, tooling 6 for the 4-way leg support frame OP10 assembly, and tooling 7 for the 4-way leg support frame OP20 assembly. These toolings all include mounting plates 14. Tooling 4 and 5 form a group, both cooperating with station 2 for welding and installing the leg support bracket assembly 21 and the 2-way leg support frame welding assembly 22, respectively. Tooling 6 and 7 form another group, both cooperating with station 3 for welding and installing the support frame assembly 23 and the 4-way leg support frame welding assembly 24, respectively. This design allows different types of leg support frames to be welded in an orderly manner on the same platform.

[0033] To achieve precise positioning and installation of the tooling, this embodiment also includes two sets of positioning mechanisms and multiple sets of positioning components.

[0034] Furthermore, in this embodiment, both positioning mechanisms are located on the base 1, and are respectively located on both sides of workstation 2 and workstation 3. The positioning mechanism includes a positioning block 8 and a positioning column 9 fixedly installed on the top of the base 1.

[0035] Furthermore, in this embodiment, the positioning assembly includes a first positioning frame 17 and a second positioning frame 19 fixedly installed on the bottom of the mounting plate 14. The first positioning frame 17 and the second positioning frame 19 are respectively located near the sides of the mounting plate 14. The bottom of the first positioning frame 17 has a positioning groove 18, the inner wall of which mates with the positioning block 8. The interior of the second positioning frame 19 has a positioning hole 20, the inner wall of which mates with the positioning post 9. This design ensures that the tooling can be accurately installed at the designated position on the base 1.

[0036] To ensure stable installation and rapid switching of the tooling, this embodiment also includes multiple fixing components. These fixing components are grouped into sets of four, with each group used to secure the corresponding tooling.

[0037] Furthermore, in this embodiment, the fixing component includes a fixing bracket 15 fixedly installed on the bottom of the mounting plate 14, located at the corner of the base 1. The top of the base 1 has two mounting holes 11, forming a set, both corresponding to the fixing bracket 15. A first positioning nut 12 is fixedly inserted into the interior of each of the two mounting holes 11, and two second positioning nuts 16 are fixedly inserted into the interior of the fixing bracket 15. Each of the two second positioning nuts 16 corresponds to a corresponding first positioning nut 12, and the internal threads of the corresponding second positioning nuts 16 and first positioning nuts 12 are threaded through the same positioning screw 13. By tightening the positioning screw 13, the fixture can be stably installed on the base 1, and quick switching can be performed when needed.

[0038] This application can be used in the field of seat manufacturing technology, or in other fields applicable to this application.

[0039] Example 2: Reference Figure 1 , 2 An improvement based on Example 1: a one-line welding fixture platform for multiple welding processes of seat leg rests, which is applied to the field of seat manufacturing technology;

[0040] In addition, in this embodiment, two mounting brackets 10 are fixedly installed on the bottom of the base 1, and the two mounting brackets 10 are respectively located near the two sides of the base 1. The design of the mounting brackets 10 allows the entire tooling platform to be easily fixed in the required working position.

[0041] To enable control of the corresponding tooling, in this embodiment, photoelectric control switches 25 are provided on the top of the 2-direction leg support frame OP10 assembly tooling 4, the 2-direction leg support frame OP20 assembly tooling 5, the 4-direction leg support frame OP10 assembly tooling 6, and the 4-direction leg support frame OP20 assembly tooling 7. The photoelectric control switches 25 allow for convenient control of the start and stop of the corresponding tooling, improving operational convenience and safety.

[0042] However, as is well known to those skilled in the art, the working principle and wiring method of the photoelectric control switch 25 are commonplace and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0043] The working principle and usage process of this technical solution are as follows: During use, the user can first install the 2-way leg support frame OP10 assembly tooling 4 and the 4-way leg support frame OP10 assembly tooling 6 on the base 1. The 2-way leg support frame OP10 assembly tooling 4 is located at position 2 (station one), and the 4-way leg support frame OP10 assembly tooling 6 is located at position 3 (station two). During installation, the user only needs to ensure that the positioning block 8 and positioning post 9 can respectively engage with the positioning groove 18 and positioning hole 20 to complete the positioning of the corresponding tooling. Furthermore, because the positioning post 9 and positioning block 8 have different shapes, the user only needs to first pre-position the positioning post 9 with the positioning hole 20, and then only needs to slightly deflect the tooling to complete the engagement positioning of the positioning block 8 and the positioning groove 18. This makes the positioning of the tooling more flexible and efficient than a structure where both sides use positioning posts 9 and positioning holes 20 for engagement. Moreover, after positioning is completed... Multiple second positioning nuts 16 are aligned with the corresponding first positioning nuts 12. At this time, the user only needs to screw the corresponding positioning screws 13 into the aligned second positioning nuts 16 and first positioning nuts 12 to complete the fixing of the corresponding tooling. By controlling the corresponding photoelectric control switch 25, the user can assemble the leg support bracket assembly 21, support frame assembly 23 and other components on the 2-way leg support frame OP10 assembly tooling 4 and the 4-way leg support frame OP10 assembly tooling 6 respectively. Afterwards, by removing the positioning screws 13, the user can quickly remove the 2-way leg support frame OP10 assembly tooling 4 and the 4-way leg support frame OP10 assembly tooling 6, and then quickly switch to the 2-way leg support frame OP20 assembly tooling 5 and the 4-way leg support frame OP20 assembly tooling 7, and complete the quick installation using the positioning components and the corresponding positioning screws 13. At this time, the assembly and welding work of the 2-way leg support frame welding assembly 22 and the 4-way leg support frame welding assembly 24 can continue to be completed.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A seat leg rest multi-welding process linear welding tooling platform, characterized by, include: The base (1) has a work station one (2) and a work station two (3) inside, which are used for installing different tooling respectively; It also includes a 2-way leg support frame OP10 assembly tooling (4), a 2-way leg support frame OP20 assembly tooling (5), a 4-way leg support frame OP10 assembly tooling (6), and a 4-way leg support frame OP20 assembly tooling (7). Each of these toolings includes a mounting plate (14). The assembly tooling (4) and the 2-way leg support frame OP20 assembly tooling (5) are a set, and they are all in cooperation with station one (2) to perform welding and installation of the leg support bracket assembly (21) and the 2-way leg support frame welding assembly (22) respectively. The 4-way leg support frame OP10 assembly tooling (6) and the 4-way leg support frame OP20 assembly tooling (7) are a set, and they are all in cooperation with station two (3) to perform welding and installation of the support frame assembly (23) and the 4-way leg support frame welding assembly (24) respectively. It also includes two sets of positioning mechanisms and multiple sets of positioning components. Both sets of positioning mechanisms are located on the base (1). The two sets of positioning mechanisms are located on both sides of workstation one (2) and workstation two (3), respectively. The multiple sets of positioning components are all in cooperation with the corresponding positioning mechanisms to realize the positioning and installation of the 2-way leg support frame OP10 assembly tooling (4), the 2-way leg support frame OP20 assembly tooling (5), the 4-way leg support frame OP10 assembly tooling (6), and the 4-way leg support frame OP20 assembly tooling (7), respectively. It also includes multiple fixing components, with each group of four fixing components. The multiple groups of fixing components are used to respectively realize the installation, fixing and quick switching of the 2-way leg support frame OP10 assembly tooling (4), the 2-way leg support frame OP20 assembly tooling (5), the 4-way leg support frame OP10 assembly tooling (6), and the 4-way leg support frame OP20 assembly tooling (7).

2. The one-welding process jig platform for a seat leg rest multi-welding process linear welding according to claim 1, wherein The positioning mechanism includes a positioning block (8) and a positioning column (9) fixedly installed on the top of the base (1).

3. The one-welding process jig platform for a seat leg rest multi-welding process linear welding according to claim 1, wherein The positioning assembly includes a first positioning frame (17) and a second positioning frame (19) fixedly installed on the bottom of the mounting plate (14). The first positioning frame (17) and the second positioning frame (19) are respectively located on the sides of the mounting plate (14). The bottom of the first positioning frame (17) is provided with a positioning groove (18), and the inner wall of the positioning groove (18) cooperates with the positioning block (8). The interior of the second positioning frame (19) is provided with a positioning hole (20), and the inner wall of the positioning hole (20) cooperates with the positioning post (9).

4. The one-welding process jig platform for a seat leg rest multi-welding process linear welding according to claim 1, wherein The fixing assembly comprises a fixing support (15) fixedly installed at the bottom of the mounting plate (14), the fixing support (15) is located at the corner of the base (1), the bottom of the fixing support (15) is matched with the top of the base (1), the top of the base (1) is provided with two mounting holes (11), the two mounting holes (11) are a set, and the two mounting holes (11) correspond to the fixing support (15), the inside of the two mounting holes (11) is fixedly penetrated with a first positioning nut (12), the inside of the fixing support (15) is fixedly penetrated with two second positioning nuts (16), the two second positioning nuts (16) correspond to the corresponding first positioning nut (12) respectively, and the inside of the corresponding second positioning nut (16) and first positioning nut (12) is penetrated with a same positioning screw (13), so that a plurality of toolings can be stably installed on the base (1).

5. The one-welding process jig platform for a seat leg rest multi-welding process linear welding according to claim 1, wherein The bottom of the base (1) is fixedly installed with two mounting supports (10), and the two mounting supports (10) are respectively located near the two sides of the base (1).

6. The one-welding process jig platform for a seat leg rest multi-welding process linear welding according to claim 1, wherein The top of the 2-way leg support framework OP10 assembly tooling (4), the 2-way leg support framework OP20 assembly tooling (5), the 4-way leg support framework OP10 assembly tooling (6) and the 4-way leg support framework OP20 assembly tooling (7) is provided with a photoelectric control switch (25) for controlling the corresponding tooling.