A welding fixture for Y-shaped table legs

By designing a Y-shaped table leg welding fixture with all-around limiting, the problem of inaccurate limiting was solved, achieving high precision and stability in the welding process and improving welding quality.

CN224575005UActive Publication Date: 2026-07-31FOSHAN CHONG YA FURNITURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN CHONG YA FURNITURE CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing welding fixture for "Y"-shaped table legs is not precise or stable enough, which makes the table legs prone to displacement during the welding process, affecting the welding accuracy and quality.

Method used

Design a welding fixture that includes a base, a first locking component, a second locking component, a third locking component, and a limiting block. By using the combination of limiting grooves and locking components, the table legs are omnidirectionally limited and fixed to ensure stability during the welding process.

Benefits of technology

It improves the clamping accuracy and stability of welding, thereby enhancing the welding effect and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a welding fixture for "Y"-shaped table legs, including a base, a first locking member, a second locking member, a third locking member, and several limiting blocks. When welding the "Y"-shaped table legs, each component of the table leg is inserted into the limiting groove to prevent lateral movement. The first locking member presses and fixes the table leg from above, while the second and third locking members limit the front-to-back direction of the table leg, achieving omnidirectional limiting and fixing of the table leg, allowing welding to proceed. This "Y"-shaped table leg welding fixture, through the cooperation of the base, the first locking member, the second locking member, the third locking member, and the limiting blocks, provides omnidirectional limiting and fixing of the table leg, thereby improving clamping accuracy and stability, and ultimately improving welding effect and quality.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture for a “Y”-shaped table leg. Background Technology

[0002] In the production of "Y" shaped table legs, the welding process is a key step in ensuring the structural strength and assembly accuracy of the table legs, and the rationality of the welding fixtures directly affects the efficiency of the welding operation and the quality of the finished product.

[0003] Currently, existing tooling for welding "Y"-shaped table legs often suffers from insufficient precision and stability in terms of positioning. Most common tooling only provides rough positioning of the table legs using simple stops, failing to achieve comprehensive and precise constraint based on the unique shape of the "Y". During welding, the table legs are prone to lateral and longitudinal displacement due to welding stress, external impacts, and even upward movement, leading to deviations in the relative positions of the welded parts.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a welding fixture for "Y"-shaped table legs, which aims to solve the technical problem that the welding fixture for "Y"-shaped table legs in the prior art is not precise and stable enough in terms of positioning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fixture for a "Y"-shaped table leg includes a base, on which are provided a first locking member, a second locking member, a third locking member, and several limiting blocks. The limiting blocks are arranged in pairs to form limiting grooves, which are used to limit the table leg in the left and right directions. The first locking member, the second locking member, and the third locking member are distributed along the outer contour of the table leg. The first locking member is used to limit the upper part of the table leg, and the second locking member and the third locking member are used together to limit the front and back directions of the table leg.

[0008] The aforementioned "Y"-shaped table leg welding fixture includes a base comprising a frame and several crossbeams. A first locking member, a second locking member, and a third locking member are fixedly connected to the frame. Several crossbeams are respectively fixedly connected to the frame and are parallel to each other. Several limiting blocks are respectively fixedly connected to several crossbeams. The crossbeams are used to support the table legs.

[0009] The aforementioned "Y"-shaped table leg welding fixture includes a base that further comprises an inclined plate, a support plate, and a mounting plate. The inclined plate, support plate, and mounting plate are fixedly connected in pairs to form a triangular prism. The mounting plate and support plate are fixedly connected to the frame. The inclined plate is used to stop and limit the rear end of the table leg.

[0010] The aforementioned "Y"-shaped table leg welding fixture includes two separate rectangular plates with the inclined plate arranged in parallel and spaced apart. Each rectangular plate has a parallel limiting strip for positioning and limiting the end of the table leg.

[0011] The aforementioned "Y"-shaped table leg welding fixture includes a first locking component comprising a pneumatic seat, a first connecting rod, and a first pressure rod. The pneumatic seat is fixedly installed on the frame and connected to an external air source device. One end of the first connecting rod is driven and connected to the telescopic rod of the pneumatic seat. The first pressure rod is fixedly connected to the other end of the first connecting rod and is used to press against the top of the table leg.

[0012] The aforementioned "Y"-shaped table leg welding fixture includes a second locking component comprising a first fixed seat, a first handle, a second connecting rod, and a second pressure rod. The first fixed seat is fixedly installed on the frame. The first handle and the second connecting rod are respectively hinged to the first fixed seat and hinged to each other. The second pressure rod is fixedly connected to the end of the second connecting rod away from the first handle and is used to abut the front end of the table leg.

[0013] The aforementioned "Y"-shaped table leg welding fixture includes a third locking component comprising a second fixed seat, a second handle, and a third connecting rod. The second fixed seat is fixedly mounted on a support plate. The second handle and the third connecting rod are respectively hinged to the second fixed seat and hinged to each other. A hook is provided at the end of the third connecting rod away from the second handle. The hook is used to hook the rear end of the table leg so that the rear end of the table leg abuts against the inclined plate.

[0014] The aforementioned "Y"-shaped table leg welding fixture also includes a pneumatic switch, which is mounted on the base and connected to the first locking member to control the tightness of the first locking member.

[0015] Beneficial effects:

[0016] This utility model provides a welding fixture for "Y"-shaped table legs, including a base, a first locking member, a second locking member, a third locking member, and several limiting blocks. When welding the "Y"-shaped table legs, each component of the table leg is inserted into the limiting groove to prevent lateral movement. The first locking member presses and fixes the table leg from above, while the second and third locking members limit the front-to-back direction of the table leg, achieving omnidirectional limiting and fixing of the table leg, allowing welding to proceed. This "Y"-shaped table leg welding fixture, through the cooperation of the base, the first locking member, the second locking member, the third locking member, and the limiting blocks, provides omnidirectional limiting and fixing of the table leg, thereby improving clamping accuracy and stability, and ultimately improving welding effect and quality. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the welding fixture provided by this utility model;

[0018] Figure 2 A three-dimensional structural diagram of the welding fixture provided by this utility model during use;

[0019] Figure 3 A right-side view of the welding fixture provided by this utility model during use;

[0020] Figure 4 This is a schematic diagram of the non-use structure of the second locking member provided by this utility model;

[0021] Figure 5 A schematic diagram of the usage state of the third locking component provided by this utility model.

[0022] Figure label:

[0023] 1—Base; 2—First locking element; 3—Second locking element

[0024] 4—Third locking element; 5—Table leg; 6—Pneumatic switch

[0025] 11—Limiting block; 12—Limiting groove; 13—Frame

[0026] 14—Crossbeam 15—Inclined plate 16—Support plate

[0027] 17—Mounting plate 18—Rectangular plate 19—Limiting strip

[0028] 21—Pneumatic base; 22—First connecting rod; 23—First pressure rod

[0029] 31—First fixed seat; 32—First handle; 33—Second connecting rod

[0030] 34—Second pressure rod; 41—Second fixed seat; 42—Second handle

[0031] 43—Third connecting rod; 44—Hook; 51—Connecting plate

[0032] 52—Main rod; 53—Support rod. Detailed Implementation

[0033] This utility model provides a welding fixture for "Y"-shaped table legs. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0035] Please see Figures 1 to 5 As shown, this utility model provides a welding fixture for a "Y"-shaped table leg, including a base 1. The base 1 is provided with a first locking member 2, a second locking member 3, a third locking member 4, and several limiting blocks 11. The several limiting blocks 11 form limiting grooves 12 in pairs, which are used to limit the table leg 5 in the left and right directions. The first locking member 2, the second locking member 3, and the third locking member 4 are distributed along the outer contour of the table leg 5. The first locking member 2 is used to limit the upper part of the table leg 5, and the second locking member 3 and the third locking member 4 are used together to limit the table leg 5 in the front and back directions. In this embodiment, the "Y"-shaped table leg 5 includes a connecting plate 51, a main rod 52, and two support rods 53. The connecting plate 51 is welded obliquely to one end of the main rod 52, and the two support rods 53 are welded to the other ends of the main rod 52, forming an angle, thus giving the table leg 5 an overall "Y" shape. The ends of the two support rods 53 are inclined surfaces parallel to the connecting plate 51. There are three first locking members 2, which respectively limit the upper parts of the main rod 52 and the two support rods 53; there are two second locking members 3, which respectively limit the ends of the two support rods 53; and a third locking member 4 limits the connecting plate 51.

[0036] When welding the "Y"-shaped table leg 5, each component of the table leg 5 is inserted into the limiting groove 12 to prevent the components from moving left or right. The first locking member 2 presses down on the table leg 5 from above to fix it. The second locking member 3 and the third locking member 4 limit the front and back directions of the table leg 5, achieving all-round limiting and fixing of the table leg 5, which can then be used for welding. This "Y"-shaped table leg welding fixture, through the cooperation of the base 1, the first locking member 2, the second locking member 3, the third locking member 4 and the limiting block 11, provides all-round limiting and fixing of the table leg 5, thereby improving the clamping accuracy and stability, and thus improving the welding effect and quality.

[0037] Please see Figures 1 to 2 As shown, the base 1 includes a frame 13 and several crossbeams 14. A first locking member 2, a second locking member 3, and a third locking member 4 are fixedly connected to the frame 13. The several crossbeams 14 are respectively fixedly connected to the frame 13 and are parallel to each other. Several limiting blocks 11 are respectively fixedly connected to the several crossbeams 14. The crossbeams 14 are used to support the table legs 5. In this embodiment, the frame 13 is formed by welding profiles to create a rectangular frame 13, and multiple parallel crossbars are spaced along its length for installing the first locking member 2; the several crossbeams 14 are fixedly welded to the frame 13, and the several limiting blocks 11 are fixedly welded to the crossbeams 14.

[0038] Please see Figures 1 to 3 As shown, the base 1 also includes an inclined plate 15, a support plate 16, and a mounting plate 17. The inclined plate 15, support plate 16, and mounting plate 17 are fixedly connected in pairs to form a tilted triangular prism. The mounting plate 17 and support plate 16 are fixedly connected to the frame 13. The inclined plate 15 is used to abut and limit the rear end of the table leg 5. In this embodiment, the included angle between the inclined plate 15 and the frame 13 is equal to the included angle between the connecting plate 51 and the main rod 52. The mounting plate 17 is welded to the frame 13, one end of the support plate 16 is welded to the frame 13, and the other end of the support plate 16 is welded to the inclined plate 15. One end of the inclined plate 15 is welded to the mounting plate 17. The inclined plate 15 is used to abut the connecting plate 51, and the third locking member 4 works with the inclined plate 15 to clamp and fix the connecting plate 51.

[0039] Please see Figures 1 to 2 As shown, the inclined plate 15 consists of two separate rectangular plates 18, which are arranged in parallel and spaced apart. Each of the two rectangular plates 18 has a parallel limiting strip 19, which is used to position and limit the ends of the table legs 5. In this embodiment, a gap is provided between the two rectangular plates 18 to allow the third locking member 4 to have operating space. The limiting strips 19 are welded to the rectangular plates 18, and the distance between the two limiting strips 19 is equal to the width of the connecting plate 51, so as to abut against both sides of the connecting plate 51 for limiting.

[0040] Please see Figure 3 As shown, the first locking component 2 includes a pneumatic base 21, a first connecting rod 22, and a first pressure rod 23. The pneumatic base 21 is fixedly installed on the frame 13 and connected to an external air source device. One end of the first connecting rod 22 is driven and connected to the telescopic rod of the pneumatic base 21. The first pressure rod 23 is fixedly connected to the other end of the first connecting rod 22 and is used to press against the top of the table leg 5. In this embodiment, the first locking component 2 is pneumatically driven. The pneumatic base 21 is fixed to the crossbar of the frame 13 by welding and connected to an external air source device through an air pipe. The end of the first pressure rod 23 is provided with a buffer pad made of silicone material. The buffer pad contacts the table leg 5, which can prevent scratching and abrasion of the surface of the table leg 5. During clamping, the first connecting rod 22 is raised by an external air source device. Once the main rod 52 and the support rod 53 of the table leg 5 are both inserted into the limiting groove 12, the external air source device controls the first connecting rod 22 to press down until the end of the first pressing rod 23 abuts against the upper surface of the main rod 52 and the support rod 53.

[0041] Please see Figure 1 and Figure 4 As shown, the second locking member 3 includes a first fixed base 31, a first handle 32, a second connecting rod 33, and a second pressure rod 34. The first fixed base 31 is fixedly installed on the frame 13. The first handle 32 and the second connecting rod 33 are respectively hinged to the first fixed base 31 and hinged to each other. The second pressure rod 34 is fixedly connected to the end of the second connecting rod 33 away from the first handle 32 and is used to stop the front end of the table leg 5. In this embodiment, the second locking member 3 is a manually operated locking member. The first fixed base 31 is welded to the front end of the frame 13 and is inclined. The first fixed base 31, the first handle 32, and the second connecting rod 33 form a crank-connecting rod mechanism. The structure of the second pressure rod 34 is the same as the structure of the first pressure rod 23. When the first handle 32 is pried up, the end of the second connecting rod 33 away from the first handle 32 is raised, thereby driving the second pressure rod 34 away from the support rod 53; when the first handle 32 is pressed down, the end of the second connecting rod 33 away from the first handle 32 is pressed down, thereby driving the second pressure rod 34 closer to the support rod 53, so that the end of the second pressure rod 34 abuts against the inclined surface at the end of the support rod 53.

[0042] Please see Figure 1 Figure 3 and Figure 5As shown, the third locking member 4 includes a second fixed base 41, a second handle 42, and a third connecting rod 43. The second fixed base 41 is fixedly installed on the support plate 16. The second handle 42 and the third connecting rod 43 are respectively hinged to the second fixed base 41 and hinged to each other. A hook 44 is provided at the end of the third connecting rod 43 away from the second handle 42. The hook 44 is used to hook the rear end of the table leg 5 so that the rear end of the table leg 5 abuts against the inclined plate 15. In this embodiment, the difference between the third locking member 4 and the second locking member 3 is that the end of the second connecting rod 33 is connected to the second pressure rod 34, and the end of the third connecting rod 43 is provided with a hook 44. Other than that, the other structures are the same. When the second handle 42 is pried up, the end of the third connecting rod 43 away from the second handle 42 is raised, thereby driving the hook 44 away from the connecting plate 51; when the second handle 42 is pressed down, the end of the third connecting rod 43 away from the second handle 42 is pressed down, thereby driving the hook 44 closer to the connecting plate 51, so that the hook 44 hooks the edge of the connecting plate 51 and cooperates with the inclined plate 15 to fix the connecting plate 51.

[0043] Please see Figures 1 to 2 As shown, it also includes a pneumatic switch 6, which is mounted on the base 1 and connected to the first locking member 2 to control the tightness or looseness of the first locking member 2. In this embodiment, the pneumatic switch 6 is welded to the frame 13 and connected to the pneumatic seat 21 of the first locking member 2 and an external air source device via air pipes, to control the movement of the first locking member 2, thereby controlling its pressing or releasing of the table leg 5.

[0044] In summary, this utility model uses the base 1, the first locking member 2, the second locking member 3, the third locking member 4 and the limiting block 11 to cooperate with each other to fix the table leg 5 in all directions, thereby improving the clamping accuracy and stability, and thus improving the welding effect and quality.

[0045] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A "Y" table leg welding fixture, characterized in that, The table includes a base (1), on which a first locking member (2), a second locking member (3), a third locking member (4), and several limiting blocks (11) are provided; wherein, the several limiting blocks (11) form a limiting groove (12) in pairs, and the limiting groove (12) is used to limit the table leg (5) in the left and right directions; the first locking member (2), the second locking member (3), and the third locking member (4) are distributed along the outline of the table leg (5), the first locking member (2) is used to limit the upper part of the table leg (5), and the second locking member (3) and the third locking member (4) are used together to limit the table leg (5) in the front and back directions.

2. The "Y" table leg welding fixture of claim 1, wherein, The base (1) includes a frame (13) and several crossbeams (14). The first locking member (2), the second locking member (3) and the third locking member (4) are fixedly connected to the frame (13). Several crossbeams (14) are fixedly connected to the frame (13) and are parallel to each other. Several limiting blocks (11) are fixedly connected to several crossbeams (14). The crossbeams (14) are used to support the table legs (5).

3. The "Y" table leg welding fixture of claim 2, wherein, The base (1) also includes an inclined plate (15), a support plate (16) and a mounting plate (17). The inclined plate (15), the support plate (16) and the mounting plate (17) are fixedly connected in pairs to form a triangular prism. The mounting plate (17) and the support plate (16) are fixedly connected to the frame (13). The inclined plate (15) is used to stop and limit the rear end of the table leg (5).

4. The "Y" table leg welding fixture of claim 3, wherein, The inclined plate (15) consists of two separate rectangular plates (18). The two rectangular plates (18) are arranged in parallel and spaced apart. Each of the two rectangular plates (18) has a parallel limiting strip (19) for positioning and limiting the ends of the table legs (5).

5. The "Y" table leg welding fixture of claim 2 wherein, The first locking component (2) includes a pneumatic base (21), a first connecting rod (22) and a first pressure rod (23). The pneumatic base (21) is fixedly installed on the frame (13) and connected to an external air source device. One end of the first connecting rod (22) is driven to be connected to the telescopic rod of the pneumatic base (21). The first pressure rod (23) is fixedly connected to the other end of the first connecting rod (22) and is used to press against the top of the table leg (5).

6. The "Y" table leg welding fixture of claim 2 wherein, The second locking component (3) includes a first fixed seat (31), a first handle (32), a second connecting rod (33) and a second pressure rod (34). The first fixed seat (31) is fixedly installed on the frame (13). The first handle (32) and the second connecting rod (33) are respectively hinged to the first fixed seat (31) and hinged to each other. The second pressure rod (34) is fixedly connected to the end of the second connecting rod (33) away from the first handle (32) and is used to stop the front end of the table leg (5).

7. The "Y" table leg welding fixture of claim 3 wherein, The third locking component (4) includes a second fixed seat (41), a second handle (42) and a third connecting rod (43). The second fixed seat (41) is fixedly installed on the support plate (16). The second handle (42) and the third connecting rod (43) are respectively hinged to the second fixed seat (41) and hinged to each other. A hook (44) is provided at the end of the third connecting rod (43) away from the second handle (42). The hook (44) is used to hook the rear end of the table leg (5) so that the rear end of the table leg (5) abuts against the inclined plate (15).

8. The "Y" table leg welding fixture of claim 1 wherein, It also includes a pneumatic switch (6), which is mounted on the base (1) and connected to the first locking member (2) to control the tightness of the first locking member (2).