Positioning tool for welding metal plates of multiple specifications

By combining guide rails and limiting blocks, the problem of unstable positioning in the welding of multi-specification metal plates is solved, achieving stable and efficient welding and improving welding quality and efficiency.

CN223997670UActive Publication Date: 2026-03-17ANYANG IRON & STEEL GRP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing multi-specification metal plate welding positioning fixtures lack uniformity, resulting in slow welding test progress, risk of workpiece displacement, difficulty in achieving precise positioning and stability, and affecting welding quality and efficiency.

Method used

The positioning fixture, which includes a first guide rail and a second guide rail, is used to position the metal plate by moving laterally and longitudinally. Combined with the fixing method of limit blocks and threaded bolts, it ensures the stability of the four corners of the metal plate. Weld slag is collected by the vertical positioning plate and the load-bearing connecting block, which improves the positioning stability.

Benefits of technology

It enables convenient positioning and stabilization of metal plates of various specifications, reduces the risk of warping during welding, improves welding quality and efficiency, and facilitates post-weld finishing work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning tool for welding metal plates of multiple specifications, which comprises a support frame, a sliding through groove is arranged on the support frame and is used for installing a fixed guide rail, the fixed guide rail comprises a first guide rail and a second guide rail which are arranged above the support frame in parallel, and the positioning tool further comprises limiting holes which are arranged on the fixed guide rail at equal intervals and are used for fixing the first guide rail and the second guide rail. The supporting frame is connected with the fixed guide rail through an internal reinforcing assembly, and limiting blocks are arranged on the sides of the first guide rail and the second guide rail. Threaded bolts in the limiting blocks are fixed to the fixed guide rails, and limiting assemblies are installed on the inner sides of the limiting blocks through limiting rods. According to the positioning tool for welding the metal plates of the multiple specifications, due to the fact that specifications of existing metal plate samples are not uniform, the positioning tool can conveniently move in the transverse direction and the longitudinal direction, meanwhile, automatic positioning is facilitated after the positioning tool moves, the structure is simple, operation is convenient and fast, the four corners of each metal plate can be pressed and limited, and the positioning stability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of positioning fixtures for metal plate welding, specifically a positioning fixture for welding metal plates of various specifications. Background Technology

[0002] Welding positioning fixtures are jigs used to ensure the stability of the weldment during the welding process, improve assembly accuracy and efficiency, and obtain welds and post-weld dimensions that meet design requirements. Metal plates need to be fixed in place during the welding process to ensure their stability.

[0003] Based on existing solutions and actual production and processing applications, the current positioning fixtures for welding multi-specification metal plates still have some problems, such as:

[0004] 1. The specifications of the metal plate samples used in the existing laboratory are not uniform. The temporary fixing method seriously affects the progress of welding tests and there is a risk of displacement of the weldment during the welding process. It is not convenient to position the lateral movement according to the length of the metal plate. The structure is simple and the operation is convenient.

[0005] 2. Existing metal plates are not convenient for longitudinal movement and positioning during processing, and are not easy to effectively fix after precise positioning. During welding, the metal plates are prone to warping, making it difficult to press and position them, which hinders the improvement of welding quality and efficiency. Therefore, this utility model provides a positioning fixture for welding metal plates of various specifications to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a positioning fixture for welding metal plates of various specifications. The specifications of the metal plate samples used in the laboratory are not uniform. The metal plate is positioned laterally by the first guide rail and the second guide rail, and then positioned longitudinally by the longitudinal movement. The structure is simple and the operation is convenient. At the same time, it can press and position the four corners of the metal plate, increasing the positioning stability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for welding multi-specification metal plates, comprising: a support frame, wherein the support frame is provided with a sliding through groove for mounting a fixed guide rail, the fixed guide rail including a first guide rail and a second guide rail, which are placed parallel to each other above the support frame, and further comprising:

[0008] The fixed guide rail has equal-spaced limit holes, and the support frame is connected to the fixed guide rail through internal reinforcing components. Limit blocks are provided on the sides of the first and second guide rails.

[0009] The threaded bolt inside the limiting block is fixed to the fixed guide rail, and the limiting component is installed on the inner side of the limiting block through the limiting rod. A vertical positioning plate is vertically fixed in the middle of the support frame, and the vertical positioning plate is connected to the bearing connecting block in a "well" shape.

[0010] As a preferred embodiment of this utility model, the first guide rail and the second guide rail are slidably connected to the load-bearing connecting block, and the outer side of the load-bearing connecting block is perpendicularly connected to the reinforcing plate.

[0011] As a preferred embodiment of this utility model, the reinforcement component includes a fastening connecting rod that penetrates the interior of the fixed guide rail, and the upper end of the fastening connecting rod is threaded with a connecting ring.

[0012] As a preferred embodiment of this utility model, the limiting component includes a limiting connecting plate welded and fixed to the inner side of the limiting block, and a pressing plate is connected to the lower end of the limiting rod.

[0013] As a preferred technical solution of this utility model, the threaded connection between the limiting rod and the limiting connecting plate plays a limiting role for the metal plate.

[0014] As a preferred technical solution of this utility model, the sliding arrangement of the first guide rail and the limiting block plays a role in adjusting the longitudinal movement range of the metal plate.

[0015] As a preferred technical solution of this utility model, the support frame is provided with positioning grooves at equal intervals.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the positioning fixture for welding metal plates of various specifications is convenient for horizontal and vertical movement because the specifications of existing metal plate samples are not uniform. At the same time, it is convenient for automatic positioning after movement. It has a simple structure and is easy to operate. It can press and limit the four corners of the metal plate to increase the stability of positioning.

[0017] 1. The limiting connecting plate is aligned with the four corners of the metal plate according to the longitudinal length of the metal plate to limit its movement. After the limiting is completed, the threaded bolt inside the limiting block is fixed to the fixed guide rail due to the equal spacing of the limiting holes inside the fixed guide rail. The limiting block is connected to the fixed guide rail through its internal threaded bolt. By rotating the threaded bolt, the threaded bolt is connected to the limiting block. Then, the threaded bolt is rotated to connect with the appropriate limiting hole, thereby fixing the threaded bolt to the longitudinally adjusted limiting block and the fixed guide rail. The limiting rod is threadedly connected to the limiting connecting plate. After the metal plate is limited at the four corners by the limiting connecting plate, the limiting rod is rotated. At this time, the limiting rod moves inside the limiting connecting plate, and the pressing plate at the lower end of the limiting rod moves along with it. The pressing plate presses and limits the metal plate to prevent the metal plate from warping during welding and improves the limiting effect.

[0018] 2. A vertical positioning plate is fixed in the middle of the support frame, and the vertical positioning plate is connected to the bearing connecting block in a "well" shape. According to the size and length of the metal plate, the metal plate is placed on the surface of the vertical positioning plate and the bearing connecting block. Then, the first guide rail and the second guide rail slide on the upper end of the bearing connecting block. The setting of the bearing connecting block and the vertical positioning plate can collect the cleaned welding slag under the tooling, which is convenient for post-weld cleaning.

[0019] 3. By facilitating adjustment based on the length of the metal plate, after the first and second guide rails are moved laterally to the appropriate position, the support frame has equally spaced positioning slots. The reinforcement components within the support frame then adjust and limit the movement. These components include a fastening connecting rod that penetrates the fixed guide rail, with a connecting ring threaded onto the upper end of the fastening connecting rod. Once adjusted to the appropriate position, the fastening connecting rod is inserted into the first guide rail, engaging with the positioning slot within the support frame. A connecting plate is installed in the through slot within the support frame to reduce the size of the exposed slot at the upper end of the support frame. The connecting ring is then rotated to move within the fastening connecting rod, increasing stability after movement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the connection between the vertical positioning plate and the reinforcing plate of this utility model.

[0022] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a schematic cross-sectional view of the connection between the load-bearing connecting block and the second guide rail of this utility model.

[0024] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B;

[0025] Figure 6 This is a schematic diagram of the overall exploded structure of this utility model;

[0026] Figure 7 This utility model Figure 4 Enlarged structural diagram at point C.

[0027] In the diagram: 1. Support frame; 2. First guide rail; 3. Limiting block; 4. Fastening connecting rod; 5. Second guide rail; 6. Lifting hole; 7. Bearing connecting block; 8. Reinforcing plate; 9. Connecting plate; 10. Connecting ring; 11. Positioning groove; 12. Vertical positioning plate; 13. Threaded bolt; 14. Limiting connecting plate; 15. Limiting rod; 16. Pressing plate; 17. Limiting hole. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-7 This utility model provides a technical solution: a positioning fixture for welding multi-specification metal plates, including specific components such as... Figure 1 , Figure 2 , Figure 3 and Figure 7In the support frame 1, sliding grooves are provided at both ends inside, and a first guide rail 2 and a second guide rail 5 are arranged perpendicularly above the sliding grooves. First, the metal plate is placed inside the first guide rail 2 and the second guide rail 5. Since the support frame 1 has sliding grooves for installing and fixing the guide rails, the first guide rail 2 and the second guide rail 5 are placed parallel to each other above the support frame 1. A vertical positioning plate 12 is vertically fixed in the middle of the support frame 1, and the vertical positioning plate 12 is connected to the bearing connecting block 7 in a "well" shape. Based on the size and length of the metal plate, it is placed on the surface of the vertical positioning plate 12 and the bearing connecting block 7. Then, the first guide rail 2 and the second guide rail 5 slide on the upper end of the bearing connecting block 7. The arrangement of the bearing connecting block 7 and the vertical positioning plate 12 allows the cleaned welding slag to be collected below the fixture, facilitating post-weld cleaning. The opening of the lifting hole 6 and the simultaneous installation of the reinforcing plate 8 connect the adjacent supports... When the frame 1 is connected, the outer end of the fixed guide rail slides on the support frame 1. The first guide rail 2 and the second guide rail 5 are respectively attached to the outer end of the metal plate to facilitate adjustment according to the length of the metal plate. When the first guide rail 2 and the second guide rail 5 are moved laterally to a suitable position, the positioning grooves 11 are opened at equal intervals in the support frame 1. The reinforcement component in the support frame 1 is then adjusted and limited. The reinforcement component includes a fastening connecting rod 4 that passes through the fixed guide rail. The upper end of the fastening connecting rod 4 is threaded with a connecting ring 10. When the position is adjusted, the fastening connecting rod 4 is then inserted into the first guide rail 2 so that the fastening connecting rod 4 engages with the positioning groove 11 in the support frame 1. A connecting plate 9 is provided in the through groove in the support frame 1 to reduce the size of the exposed groove at the upper end of the support frame 1. The connecting ring 10 is then moved within the fastening connecting rod 4 by rotating it to increase the stability after movement.

[0030] Specific examples Figure 4 , Figure 5 , Figure 6After adjusting the limit according to the length of the metal plate, limit blocks 3 are provided on the sides of the first guide rail 2 and the second guide rail 5. The inner side of the limit block 3 is equipped with a limit assembly via a limit rod 15. The limit assembly includes a limit connecting plate 14 welded and fixed to the inner side of the limit block 3. The lower end of the limit rod 15 is connected to a pressing plate 16. The limit block 3 slides on the outside of the fixed guide rail. The fixed guide rail slides longitudinally via four limit blocks 3. When the limit block 3 slides, the limit block 3 slides longitudinally along with its fixed limit connecting plate 14. Thus, the limit connecting plate 14 is aligned with the four corners of the metal plate according to the longitudinal length of the metal plate for limit positioning. After positioning, since the fixed guide rail has equal-spaced limit holes 17, the threaded bolts 13 inside the limit block 3 are fixed to the fixed guide rail. The fixed guide rail and the limiting block 3 are connected to the fixed guide rail through the internal threaded bolt 13. By rotating the threaded bolt 13, the threaded bolt 13 is connected to the limiting block 3. Then, the threaded bolt 13 is rotated to connect with the appropriate limiting hole 17, thereby fixing the threaded bolt 13 to the longitudinally adjusted limiting block 3 and the fixed guide rail. The limiting rod 15 is threadedly connected to the limiting connecting plate 14. After the metal plate is limited at the four corners by the limiting connecting plate 14, the limiting rod 15 is rotated. At this time, the limiting rod 15 moves inside the limiting connecting plate 14, and the pressing plate 16 at the lower end of the limiting rod 15 moves along with it. Thus, the pressing plate 16 presses and limits the metal plate to prevent the metal plate from warping during welding and improves the limiting effect. This is the usage method of the positioning fixture used for welding multi-specification metal plates.

[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning fixture for welding of multi-gauge metal sheets, comprising: Support frame (1), the support frame (1) is provided with sliding through slot, for installing fixed guide rail, the fixed guide rail includes first guide rail (2) and second guide rail (5), both parallelly placed in the upper of support frame (1), it is characterized by further comprising: The fixed guide rail is equidistantly provided with limiting hole (17), and the support frame (1) is connected with the fixed guide rail by internal reinforcing assembly, the guide rail first guide rail (2) and second guide rail (5) side are provided with limiting block (3); The threaded bolt (13) in the limiting block (3) is fixed to the fixed guide rail, and the inner side of the limiting block (3) is installed limiting assembly by limiting rod (15), the vertical positioning plate (12) is vertically fixed in the middle of the support frame (1), and the vertical positioning plate (12) is connected with the bearing connecting block (7) in " well ”type.

2. The positioning tool for welding of metal sheets of different gauges according to claim 1, characterized in that: The first guide rail (2) and the second guide rail (5) are slidably connected with the bearing connecting block (7), and the outer side of the bearing connecting block (7) is vertically connected with the reinforcing plate (8).

3. The positioning tool for welding of metal sheets of different gauges according to claim 1, wherein: The reinforcing assembly includes fastening connecting rod (4) through the inside of the fixed guide rail, and the upper end of the fastening connecting rod (4) is threadedly provided with the adapter ring (10).

4. The positioning tool for welding of metal sheets of different gauges according to claim 1, wherein: The limiting assembly includes the limiting adapter plate (14) welded and fixed to the inner side of the limiting block (3), and the lower end of the limiting rod (15) is connected with the pressing plate (16).

5. The positioning tool for welding of metal sheets of different gauges according to claim 4, wherein: The limiting rod (15) and the limiting adapter plate (14) are threadedly connected to limit the metal plate.

6. The positioning tool for welding of metal sheets of different gauges according to claim 1, wherein: The first guide rail (2) and the limiting block (3) are slidably arranged to adjust the moving range of the metal plate in the longitudinal direction.

7. The positioning tool for welding of metal sheets of different gauges according to claim 1, wherein: The support frame (1) is equidistantly provided with positioning groove (11).