A bed frame guardrail welding tool

By designing a fixing and clamping mechanism for the bed frame guardrail welding fixture, and utilizing the combined movement of threaded rods and hinged rods, the problem of poor consistency in welded products was solved, achieving a highly efficient and stable welding fixing effect.

CN224309941UActive Publication Date: 2026-06-02福建文瑞智能家居有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
福建文瑞智能家居有限公司
Filing Date
2025-06-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing bed frame guardrail welding fixtures have poor positioning performance, resulting in poor consistency of welded products and reliance on manual skills, which affects quality.

Method used

Design a bed frame guardrail welding fixture that includes a fixing mechanism and a clamping mechanism. The bed frame is stably clamped and fixed by a combination of threaded rods and hinged rods.

Benefits of technology

It improves product consistency and fixation during the welding process, reduces the impact of manual operation, and improves welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a welding fixture for bed frame guardrails, belonging to the field of bed frame manufacturing technology. It includes a fixed frame and a bed frame body attached to the front of the fixed frame. Two first baffles are fixed to the lower part of the front of the fixed frame, and second baffles are fixed to both the left and right sides of the front of the fixed frame. Two blocks are fixed to the upper surface of the inner cavity of the fixed frame. A first connecting plate is fixed to the left side of the fixed frame, and a fixing mechanism is provided on the front of the first connecting plate. Two second connecting plates are fixed to the upper surface of the fixed frame, and a clamping mechanism is provided on the front of the second connecting plates. This bed frame guardrail welding fixture, through the fixing mechanism, rotates a handle, causing a threaded rod to rotate in a threaded hole, moving a movable plate. The movable plate pushes a movable plate to move via a hinged rod, moving three first connecting rods, which in turn move a first pressure plate, clamping and fixing the bed frame body.
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Description

Technical Field

[0001] This utility model relates to the field of bed frame manufacturing technology, specifically to a welding fixture for bed frame guardrails. Background Technology

[0002] Currently, most bed frame structures are made of stainless steel and are assembled and welded from various components. In traditional welding processes, the positioning effect of welding fixtures is often poor, or welding is directly carried out manually, resulting in poor consistency of the welded products and affecting the overall quality and appearance of the bed frame.

[0003] The industry's usual solution is to simplify the design of welding fixtures to reduce manufacturing costs. However, this approach often sacrifices the positioning accuracy and stability of the fixtures, or relies entirely on the welder's skill level to ensure welding quality, resulting in poor product consistency during the welding process. In addition, when welders hold the welding gun for a long time, it is easy to cause shaking, which further affects the welding quality. Therefore, this application proposes a bed frame guardrail welding fixture to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bed frame guardrail welding fixture, which has the advantage of stable fixation and solves the problem of unstable fixation in existing bed frame guardrail welding fixtures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bed frame guardrail welding fixture, comprising a fixing frame and a bed frame body attached to the front of the fixing frame, two first baffles fixed to the lower part of the front of the fixing frame, second baffles fixed to the left and right sides of the front of the fixing frame, two blocks fixed to the upper surface of the inner cavity of the fixing frame, a first connecting plate fixed to the left side of the fixing frame, a fixing mechanism provided on the front of the first connecting plate, two second connecting plates fixed to the upper surface of the fixing frame, and a clamping mechanism provided on the front of the second connecting plates;

[0006] The fixing mechanism includes a moving component and a limiting component. The moving component includes a box fixed to the front of the first connecting plate. The front of the box has a threaded hole. The moving component also includes a threaded rod rotatably connected to the inside of the threaded hole, a moving plate rotatably connected to the back of the threaded rod through a bearing seat, a first hinge rod hinged to the back of the moving plate, and a movable plate hinged to the right side of the first hinge rod.

[0007] By adopting this technical solution, the bed frame body is clamped and fixed by the fixing mechanism and the clamping mechanism, which makes it easy to fix it on the fixed frame and facilitates welding.

[0008] Furthermore, the limiting component includes three first connecting rods fixed to the right side of the movable plate and extending through and to the outside of the box, and a first pressure plate fixed to the right side of the first connecting rods.

[0009] By adopting this technical solution, the bed frame body is pressed and fixed by the first pressure plate.

[0010] Furthermore, sliders are fixed on both the left and right sides of the movable plate, and sliding grooves are provided on both the left and right sides of the inner cavity of the box, with the sliders slidably connected to the inside of the sliding grooves.

[0011] This technical solution increases the stability of the moving plate during movement.

[0012] Furthermore, two sliding rods are fixed between the left and right sides of the inner cavity of the box, and the movable plate is slidably connected to the outer surface of the sliding rods.

[0013] This technical solution increases the stability of the movable plate during movement.

[0014] Furthermore, three sliding holes are provided on the right side of the box, and the first connecting rod is slidably connected to the inside of the sliding holes.

[0015] By adopting this technical solution, the movable plate can easily move the first pressure plate via the first connecting rod.

[0016] Furthermore, the clamping mechanism includes a housing fixed to the front of the second connecting plate, a hinge seat fixed to the upper surface of the inner cavity of the housing, a pull rod hinged inside the hinge seat, a second connecting rod fixed to the front of the two pull rods, a second hinge rod hinged to the lower surface of the pull rod, a third connecting rod hinged to the lower surface of the second hinge rod and extending through and to the outside of the housing, and a second pressure plate fixed to the lower surface of the third connecting rod.

[0017] By adopting this technical solution, the bed frame body is clamped and fixed by the clamping mechanism, which makes it easy to fix it on the fixed frame and facilitates welding.

[0018] Furthermore, the pull rod is arc-shaped, and a sliding hole is provided on the front side of the housing, with the pull rod slidably connected inside the sliding hole.

[0019] By adopting this technical solution, it is convenient for the second connecting rod to push the pull rod to move.

[0020] Furthermore, limit rods are fixed on both the front and rear sides of the third connecting rod, and limit grooves are opened on both the front and rear sides of the inner cavity of the housing, with the limit rods slidably connected to the inside of the limit grooves.

[0021] This technical solution increases the stability of the third connecting rod during movement.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The bed frame guardrail welding fixture, through a fixing mechanism, rotates the rotating handle, causing the threaded rod to rotate in the threaded hole, thus moving the moving plate. The moving plate pushes the movable plate to move through the hinge rod, which in turn moves the three first connecting rods. The first connecting rods then move the first pressure plate, clamping and fixing the bed frame body. The fixing is convenient and effective, saving time.

[0024] 2. The bed frame guardrail welding fixture, through a clamping mechanism, pushes the second connecting rod downward, causing the pull rod to rotate around the hinge seat. The pull rod, through the second hinge rod, drives the third connecting rod to move, and also drives the second pressure plate to move, thereby clamping and fixing the bed frame body and improving the fixing effect of the bed frame body. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a top view of the fixing mechanism of this utility model;

[0027] Figure 3 This is a perspective view of the fixing mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the left side structure of the clamping mechanism of this utility model.

[0029] In the diagram: 1. Fixed frame; 2. First connecting plate; 3. Fixed mechanism; 301. Box body; 302. Threaded hole; 303. Threaded rod; 304. Moving plate; 305. First hinge rod; 306. Movable plate; 307. First connecting rod; 308. First pressure plate; 4. Second connecting plate; 5. Clamping mechanism; 501. Housing; 502. Hinge seat; 503. Pull rod; 504. Second connecting rod; 505. Second hinge rod; 506. Third connecting rod; 507. Second pressure plate; 6. Bed frame body; 7. First baffle; 8. Second baffle; 9. Stop block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 and Figure 3The bed frame guardrail welding fixture in this embodiment includes a fixing frame 1 and a bed frame body 6 attached to the front of the fixing frame 1. Two first baffles 7 are fixed to the lower part of the front of the fixing frame 1, and second baffles 8 are fixed to the left and right sides of the front of the fixing frame 1. Two blocks 9 are fixed to the upper surface of the inner cavity of the fixing frame 1. A first connecting plate 2 is fixed to the left side of the fixing frame 1. A fixing mechanism 3 is provided on the front of the first connecting plate 2. Two second connecting plates 4 are fixed to the upper surface of the fixing frame 1. A clamping mechanism 5 is provided on the front of the second connecting plate 4. The bed frame body 6 is clamped and fixed by the fixing mechanism 3 and the clamping mechanism 5, which facilitates fixing it to the fixing frame 1 and is beneficial for welding.

[0032] The upper surface of the first baffle 7 abuts against the lower surface of the bed frame body 6, the left side of the right end of the second baffle 8 abuts against the right side of the bed frame body 6, the left side of the left end of the second baffle 8 abuts against the left side of the inner cavity of the bed frame body 6, and the upper surface of the stop block 9 abuts against the lower surface of the inner cavity of the bed frame body 6. The bed frame body 6 is limited by the first baffle 7, the second baffle 8 and the stop block 9.

[0033] In addition, a limiting block is fixed in the middle of the front of the fixing frame 1. The front of the limiting block has an H-shaped groove for placing the H-shaped guardrail, which facilitates the welding of the bed frame body 6 and the H-shaped guardrail.

[0034] Please see Figure 2 To facilitate the fixing of the bed frame body 6, the fixing mechanism 3 in this embodiment includes a moving component and a limiting component. The moving component includes a housing 301 fixed to the front of the first connecting plate 2. The front of the housing 301 is provided with a threaded hole 302. The moving component also includes a threaded rod 303 rotatably connected to the inside of the threaded hole 302, a moving plate 304 rotatably connected to the back of the threaded rod 303 through a bearing seat, a first hinge rod 305 hinged to the back of the moving plate 304, and a movable plate 306 hinged to the right side of the first hinge rod 305. The threaded rod 303 drives the moving plate 304 to move, and the moving plate 304 drives the movable plate 306 to move through the first hinge rod 305.

[0035] The limiting assembly includes three first connecting rods 307 fixed to the right side of the movable plate 306 and extending through and to the outside of the box 301, and a first pressure plate 308 fixed to the right side of the first connecting rods 307, which presses and fixes the bed frame body 6.

[0036] The movable plate 304 is fixed with sliders on both the left and right sides, and the inner cavity of the box 301 is provided with grooves on both the left and right sides. The sliders are slidably connected to the inside of the grooves to increase the stability of the movable plate 304 when it moves. There are two sliding rods fixed between the left and right sides of the inner cavity of the box 301, and the movable plate 306 is slidably connected to the outer surface of the sliding rods to increase the stability of the movable plate 306 when it moves.

[0037] In addition, three sliding holes are provided on the right side of the housing 301. The first connecting rod 307 is slidably connected to the inside of the sliding hole, so that the movable plate 306 can drive the first pressure plate 308 to move through the first connecting rod 307. The length of the front and rear first connecting rods 307 is shorter than that of the middle first connecting rod 307. The bed frame body 6 is clamped by the cooperation of the three first connecting rods 307, the first pressure plate 308 and the second baffle 8.

[0038] In this embodiment, the fixing mechanism 3 rotates the rotating handle, causing the threaded rod 303 to rotate in the threaded hole 302, which in turn causes the moving plate 304 to move. The moving plate 304 pushes the movable plate 306 to move through the first hinge rod 305, which in turn causes the three first connecting rods 307 to move. The first pressure plate 308 is then moved through the first connecting rods 307 to clamp and fix the bed frame body 6.

[0039] Please see Figure 4 In order to further clamp the bed frame body 6, the clamping mechanism 5 in this embodiment includes a housing 501 fixed to the front of the second connecting plate 4, a hinge seat 502 fixed to the upper surface of the inner cavity of the housing 501, a pull rod 503 hinged inside the hinge seat 502, a second connecting rod 504 fixed to the front of the two pull rods 503, a second hinge rod 505 hinged to the lower surface of the pull rod 503, a third connecting rod 506 hinged to the lower surface of the second hinge rod 505 and extending through and to the outside of the housing 501, and a second pressure plate 507 fixed to the lower surface of the third connecting rod 506. The bed frame body 6 is clamped and fixed by the cooperation of the second pressure plate 507 and the stop block 9.

[0040] The pull rod 503 is arc-shaped for easy pulling. The front of the housing 501 has a sliding hole, and the pull rod 503 is slidably connected inside the sliding hole, which facilitates the second connecting rod 504 to push the pull rod 503 to move.

[0041] In addition, limit rods are fixed on both the front and rear sides of the third connecting rod 506, and limit grooves are opened on both the front and rear sides of the inner cavity of the housing 501. The limit rods are slidably connected to the inside of the limit grooves to increase the stability of the third connecting rod 506 when it moves.

[0042] In this embodiment, the clamping mechanism 5 pushes the second connecting rod 504 downward, causing the pull rod 503 to rotate around the hinge seat 502. The pull rod 503 drives the third connecting rod 506 to move through the second hinge rod 505, and drives the second pressure plate 507 to move, thereby clamping and fixing the bed frame body 6 and improving the fixing effect of the bed frame body 6.

[0043] The working principle of the above embodiments is as follows:

[0044] (1) The bed frame body 6 is brought into contact with the fixed frame 1. The bed frame body 6 is limited by the first baffle 7, the second baffle 8 and the stop block 9. At this time, the rotating handle is turned. The rotating handle drives the threaded rod 303 to rotate in the threaded hole 302. The threaded rod 303 drives the moving plate 304 to move. The moving plate 304 will drive the slider to slide inside the slide groove, increasing the stability of the moving plate 304 when it moves. When the moving plate 304 moves, it will push the movable plate 306 to slide on the outer surface of the slide rod through the first hinge rod 305, increasing the stability of the movable plate 306 when it moves. When the movable plate 306 moves, it will drive the three first connecting rods 307 to move, and drive the first pressure plate 308 to move through the first connecting rods 307, clamping and fixing the bed frame body 6. The operation is convenient and the fixing is simple.

[0045] (2) Push the second connecting rod 504 downward. The second connecting rod 504 drives the pull rod 503 to rotate around the hinge seat 502. When the pull rod 503 rotates, it will drive the third connecting rod 506 to move through the second hinge rod 505. When the third connecting rod 506 moves, it will drive the limit rod to slide inside the limit groove, increasing the stability of the third connecting rod 506 when it moves. When the third connecting rod 506 moves, it will drive the second pressure plate 507 to move. The second pressure plate 507 clamps and fixes the bed frame body 6, improving the fixing effect of the bed frame body 6.

Claims

1. A welding fixture for bed frame guardrails, comprising a fixing frame (1) and a bed frame body (6) fitted to the front of the fixing frame (1), characterized in that: Two first baffles (7) are fixed on the lower front of the fixed frame (1), and second baffles (8) are fixed on both the left and right sides of the front of the fixed frame (1). Two blocks (9) are fixed on the upper surface of the inner cavity of the fixed frame (1). A first connecting plate (2) is fixed on the left side of the fixed frame (1). A fixing mechanism (3) is provided on the front of the first connecting plate (2). Two second connecting plates (4) are fixed on the upper surface of the fixed frame (1). A clamping mechanism (5) is provided on the front of the second connecting plate (4). The fixing mechanism (3) includes a moving component and a limiting component. The moving component includes a box (301) fixed to the front of the first connecting plate (2). The front of the box (301) is provided with a threaded hole (302). The moving component also includes a threaded rod (303) rotatably connected to the inside of the threaded hole (302), a moving plate (304) rotatably connected to the back of the threaded rod (303) through a bearing seat, a first hinge rod (305) hinged to the back of the moving plate (304), and a movable plate (306) hinged to the right side of the first hinge rod (305).

2. The bed frame guardrail welding fixture according to claim 1, characterized in that: The limiting assembly includes three first connecting rods (307) fixed to the right side of the movable plate (306) and extending through and to the outside of the box body (301), and a first pressure plate (308) fixed to the right side of the first connecting rods (307).

3. The bed frame guardrail welding fixture according to claim 1, characterized in that: The movable plate (304) is fixed with sliders on both the left and right sides, and the inner cavity of the box (301) is provided with sliding grooves on both the left and right sides, and the sliders are slidably connected to the inside of the sliding grooves.

4. The bed frame guardrail welding fixture according to claim 1, characterized in that: Two sliding rods are fixed between the left and right sides of the inner cavity of the box (301), and the movable plate (306) is slidably connected to the outer surface of the sliding rods.

5. The bed frame guardrail welding fixture according to claim 2, characterized in that: The right side of the housing (301) has three sliding holes, and the first connecting rod (307) is slidably connected to the inside of the sliding holes.

6. The bed frame guardrail welding fixture according to claim 1, characterized in that: The clamping mechanism (5) includes a housing (501) fixed to the front of the second connecting plate (4), a hinge seat (502) fixed to the upper surface of the inner cavity of the housing (501), a pull rod (503) hinged to the inside of the hinge seat (502), a second connecting rod (504) fixed to the front of the two pull rods (503), a second hinge rod (505) hinged to the lower surface of the pull rod (503), a third connecting rod (506) hinged to the lower surface of the second hinge rod (505) and extending through and to the outside of the housing (501), and a second pressure plate (507) fixed to the lower surface of the third connecting rod (506).

7. The bed frame guardrail welding fixture according to claim 6, characterized in that: The pull rod (503) is arc-shaped, and a sliding hole is provided on the front of the housing (501). The pull rod (503) is slidably connected to the inside of the sliding hole.

8. The bed frame guardrail welding fixture according to claim 6, characterized in that: Limiting rods are fixed on both the front and rear sides of the third connecting rod (506), and limiting grooves are opened on both the front and rear sides of the inner cavity of the housing (501). The limiting rods are slidably connected to the inside of the limiting grooves.