Steel structure truss welding positioning auxiliary equipment

By combining a drive mechanism and an electric push rod with a clamping mechanism, the problem of inaccurate welding positioning of steel trusses was solved, achieving precise and flexible welding positioning and ensuring welding quality.

CN224587329UActive Publication Date: 2026-08-04SHANXI LINFEN MUNICIPAL ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI LINFEN MUNICIPAL ENG GRP CO LTD
Filing Date
2025-07-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing auxiliary equipment for welding and positioning steel trusses is inconvenient to adjust the position of the steel truss, which can easily lead to welding misalignment. Furthermore, when the magnet is fixed, it can easily attract metal debris, affecting the positioning accuracy.

Method used

The system employs a drive mechanism and an electric push rod in conjunction with a clamping mechanism. By driving unidirectional and bidirectional threaded rods with a motor, it achieves precise positioning and flexible adjustment of the steel structure truss. The clamping assembly can adapt to steel structure trusses of different shapes and sizes.

Benefits of technology

It enables precise positioning and welding of steel trusses, avoids welding misalignment, and improves welding accuracy and flexibility.

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Abstract

This utility model relates to an auxiliary device for welding positioning of steel trusses, belonging to the field of steel structure engineering technology. It includes a base, with a drive mechanism mounted on the lower part of the base. The drive mechanism comprises three motors arranged sequentially from front to back, all fixedly connected to the lower right side of the base. The output ends of the motors on the front and rear sides are fixedly connected to unidirectional threaded rods, while the output end of the motor in the middle is fixedly connected to a bidirectional threaded rod. A slide block is threadedly connected to the outer circumference of the unidirectional threaded rod, and two slide blocks are threadedly connected to the outer, mutually distancing sides of the bidirectional threaded rod. Electric push rods are fixedly connected to the upper surfaces of both slide blocks, and a clamping mechanism is connected to the telescopic end of the electric push rod. Clamping mechanism two is mounted on the upper part of clamping mechanism one. This utility model can prevent misalignment of the auxiliary rod during welding and improve the accuracy and flexibility of welding positioning.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure engineering technology, and in particular to an auxiliary device for welding and positioning steel structure trusses. Background Technology

[0002] Steel trusses are structural systems composed of main chords and secondary members connected by welding, riveting, or bolting. They are widely used in various building and engineering fields. Steel truss welding positioning auxiliary equipment is a device used for precise positioning and fixing during the welding process of steel trusses. Its core function is to ensure accurate welding position and improve welding quality and efficiency.

[0003] In existing technologies for welding steel trusses, some positioning aids use magnets to fix and position the main chords and secondary members. However, using magnets to fix the steel truss during welding makes it inconvenient to adjust the truss's position, causing deviations during welding and resulting in misalignment of the main chords and secondary members. Furthermore, the magnetism of the magnets passively attracts metal debris, causing the magnets to become uneven, thus affecting the accuracy of welding positioning. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an auxiliary device for welding and positioning steel structure trusses. The technical solution of this utility model is as follows: A steel truss welding positioning auxiliary device includes a base, and a drive mechanism is installed on the lower part of the base; The drive mechanism includes three motors arranged sequentially from front to back. All three motors are fixedly connected to the lower right side of the base. The output ends of the motors located on the front and rear sides are fixedly connected to one-way threaded rods. The output end of the motor located in the middle is fixedly connected to a two-way threaded rod. The outer periphery of the one-way threaded rod is threadedly connected to a slide block. The outer periphery of the two-way threaded rod is threadedly connected to two slide blocks arranged on the left and right sides. Both slide one and slide two are fixedly connected to an electric push rod. The telescopic end of the electric push rod is connected to a clamping mechanism one, and a clamping mechanism two is installed on the upper part of the clamping mechanism one.

[0005] Preferably, a limiting plate is fixedly connected to one side of each of the two slide blocks, and the two limiting plates are slidably connected to the lower part of the front and rear sides of the base respectively. A limiting plate is fixedly connected to both the front and rear sides of the slide block, and the limiting plate is slidably connected to the middle part of the inner cavity of the base.

[0006] Preferably, the clamping mechanism includes a support base, which is fixedly connected to the telescopic end of the electric push rod. A bidirectional threaded rod is rotatably connected to the middle of the support base. A slider is threadedly connected to the outer periphery of the bidirectional threaded rod on the side that is far apart from each other. A base plate is fixedly connected to the upper surface of the slider. A support plate is fixedly connected to the side that is far apart from each other of the two base plates. The clamping mechanism is movably connected to the upper part of the two support plates located above the same support base. A knob is fixedly connected to both ends of the bidirectional threaded rod.

[0007] Preferably, the clamping mechanism consists of four sets, two of which are clamping components one and the other two are clamping components two. The two sets of clamping components one are movably connected to the upper parts of the two sets of support seats distributed in front and behind, and the two sets of clamping components two are movably connected to the upper parts of the two sets of support seats distributed in the left and right.

[0008] Preferably, the clamping assembly includes two locking bolts distributed on the left and right, the outer periphery of the locking bolts being threadedly connected to the upper part of the support plate, a spherical connecting rod being fixedly connected to one side of each of the two locking bolts, a clamping plate being rotatably connected to one side of the outer periphery of each of the two spherical connecting rods, and a knob being fixedly connected to one side of the locking bolts away from the spherical connecting rods.

[0009] Preferably, the clamping assembly 2 includes two locking bolts 2 distributed front and rear, the outer circumference of the locking bolts 2 being threadedly connected to the upper part of the support plate, and clamping plates 2 being fixedly connected to opposite sides of the two locking bolts 2, and a knob 3 being fixedly connected to the side of the locking bolts 2 away from the clamping plates 2.

[0010] All of the above optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0011] The beneficial effects of this utility model through the above solution are as follows: Through the cooperation of the drive mechanism and the electric push rod, the electric push rod drives the clamping mechanism one and clamping mechanism two to adjust the height of the main chord and secondary members of the steel structure truss. The two motors distributed at the front and rear drive the unidirectional threaded rod to rotate, thereby enabling the slide one to move precisely left and right, realizing the precise adjustment of the position of the secondary member. The motor located in the middle drives the bidirectional threaded rod one to rotate, and the two slides two will move to the middle or to the sides at the same time. This realizes the flexible adjustment of the position of the clamping mechanism one according to the length of the main chord, ensuring that the main chord is stably and accurately positioned in the left and right direction, while ensuring that the main chord does not move during the welding process, avoiding misalignment of the secondary member during welding.

[0012] By coordinating clamping mechanisms one and two, rotating the double-threaded rod two via knob one causes the two sliders to move towards or away from each other along the double-threaded rod two, thereby adjusting the distance between the two base plates to accommodate main chords and auxiliary rods of different widths or diameters. Clamping plate one of clamping assembly one is connected to locking bolt one via a ball joint connecting rod, allowing clamping plate one to be freely adjusted within a certain angle to better fit the surface of the auxiliary rod and adapt to different welding angles. Clamping plate two of clamping assembly two directly clamps the surface of the main chord, and the clamping force can be adjusted by rotating knob three, achieving flexible clamping. This allows the equipment to adapt to steel structure trusses of various complex shapes and sizes, further improving the accuracy and flexibility of welding positioning.

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention from one perspective.

[0015] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of the electric push rod, clamping mechanism one, and clamping mechanism two in this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the clamping component two in this utility model. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] like Figures 1 to 5 As shown, the steel structure truss welding positioning auxiliary equipment provided by this utility model includes a base 1, and a drive mechanism 2 is installed on the lower part of the base 1. The drive mechanism 2 includes three motors 21 arranged sequentially from front to back. All three motors 21 are fixedly connected to the lower right side of the base 1. The output ends of the motors 21 located on the front and rear sides are fixedly connected to one-way threaded rods 22. The output end of the motor 21 located in the middle is fixedly connected to a two-way threaded rod 23. The outer periphery of the one-way threaded rod 22 is threadedly connected to a slide block 24. The outer periphery of the two-way threaded rod 23, which is far apart from each other, is threadedly connected to two slide blocks 26 distributed on the left and right sides. Electric push rods 3 are fixedly connected to the upper surfaces of both slide block 24 and slide block 26. The telescopic end of the electric push rod 3 is connected to clamping mechanism 4, and clamping mechanism 5 is installed on the upper part of clamping mechanism 4.

[0021] Among them, the base 1 is the supporting foundation structure of the entire equipment, providing a platform for the installation and fixation of other components.

[0022] Motor 21 serves as the power source for drive mechanism 2, converting electrical energy into mechanical energy to power the rotation of unidirectional threaded rod 22 and bidirectional threaded rod 23. By controlling the start, stop, forward rotation, and reverse rotation of motor 21, the movement direction and distance of slide 24 and slide 26 can be precisely controlled. Unidirectional threaded rod 22 rotates under the drive of motor 21. Since the threads of bidirectional threaded rod 23 are opposite on opposite sides, when bidirectional threaded rod 23 rotates, the two slides 26 move simultaneously towards the center or to the sides, thereby achieving the positioning adjustment of the steel truss in the left-right direction. Slide 24 moves linearly under the rotation of unidirectional threaded rod 22, and the two slides 26 move linearly under the rotation of bidirectional threaded rod 23. Slides 24 and 26 serve as the mounting base for electric push rod 3 and clamping mechanism 4; their movement drives clamping mechanism 4 to move in the left-right direction, thereby adjusting the left-right position of the steel truss.

[0023] The function of the electric push rod 3 is to adjust the height of the clamping mechanism 4. Through the extension and retraction of the electric push rod 3, the clamping mechanism 4 can move the clamped steel truss up and down to adapt to welding requirements at different heights. It can also be used for height matching adjustment when welding steel trusses at different heights.

[0024] Clamping mechanism 4 is used for initial clamping of the steel truss structure. Clamping mechanism 5 is used for further precise clamping of the steel truss structure to ensure that the steel truss structure will not shift during welding.

[0025] In one specific embodiment, limiting plates 25 are fixedly connected to the opposite sides of the two slide blocks 24, and the two limiting plates 25 are slidably connected to the lower parts of the front and rear sides of the base 1, respectively. Limiting plates 27 are fixedly connected to the front and rear sides of the slide block 26, and the limiting plates 27 are slidably connected to the middle of the inner cavity of the base 1.

[0026] Among them, the limiting plate 25 guides and limits the slide 24, ensuring that the slide 24 maintains linear motion during movement, avoiding deviation or shaking, and improving positioning accuracy. The limiting plate 27 guides and limits the slide 26, ensuring the stability and accuracy of the slide 26 during movement, and preventing it from deviating or shaking.

[0027] In one specific embodiment, the clamping mechanism 4 includes a support base 41, which is fixedly connected to the telescopic end of the electric push rod 3. A bidirectional threaded rod 45 is rotatably connected to the middle of the support base 41. A slider 42 is threadedly connected to the outer periphery of the bidirectional threaded rod 45 on both sides away from each other. A base plate 43 is fixedly connected to the upper surface of the slider 42. A support plate 44 is fixedly connected to the two base plates 43 on both sides away from each other. A clamping mechanism 5 is movably connected to the upper part of the two support plates 44 located above the same support base 41. A knob 46 is fixedly connected to both ends of the bidirectional threaded rod 45.

[0028] The support base 41 serves as the basic support component of the clamping mechanism 4, providing an installation platform for components such as the bidirectional threaded rod 45. By rotating the knobs 46 at both ends of the bidirectional threaded rod 45, the two sliders 42 can move towards or away from each other along the bidirectional threaded rod 45, thereby adjusting the distance between the two base plates 43 to accommodate steel trusses of different widths or diameters. The base plates 43 provide the installation foundation for the support plate 44 and also support the steel truss. The support plate 44 provides installation and support for the clamping mechanism 5. By rotating the knobs 46, the rotation of the bidirectional threaded rod 45 can be easily controlled, thereby adjusting the position of the sliders 42 and achieving initial clamping and positioning of the steel truss.

[0029] In one specific embodiment, the clamping mechanism 2 5 consists of four sets, two of which are clamping components 1 51 and the other two are clamping components 2 52. The two sets of clamping components 1 51 are movably connected to the upper parts of the two sets of support seats 41 distributed in front and behind, and the two sets of clamping components 2 52 are movably connected to the upper parts of the two sets of support seats 41 distributed in the left and right.

[0030] In one specific embodiment, the clamping assembly 51 includes two locking bolts 513 distributed on the left and right. The outer periphery of the locking bolts 513 is threadedly connected to the upper part of the support plate 44. A spherical connecting rod 512 is fixedly connected to the opposite side of each of the two locking bolts 513. A clamping plate 511 is rotatably connected to the opposite side of the outer periphery of each of the two spherical connecting rods 512. A knob 514 is fixedly connected to the side of the locking bolts 513 away from the spherical connecting rods 512.

[0031] The feed amount of the locking bolt 513 can be adjusted by rotating knob 514, thereby controlling the clamping force of clamp 511 on the steel truss. The spherical connecting rod 512 connects clamp 511 and locking bolt 513, allowing clamp 511 to be freely adjusted within a certain angle to better conform to the surface of the steel truss, improving clamping stability and adaptability. Clamp 511 can rotate freely within a certain range to adapt to steel truss surfaces of different shapes and angles. Knob 514 provides operators with a convenient means of adjusting the clamping force.

[0032] In one specific embodiment, the clamping assembly 2 52 includes two locking bolts 2 522 distributed front and rear. The outer circumference of the locking bolts 2 522 is threadedly connected to the upper part of the support plate 44. The clamping plate 2 521 is fixedly connected to the opposite side of the two locking bolts 2 522. The knob 3 523 is fixedly connected to the side of the locking bolts 2 522 away from the clamping plate 2 521.

[0033] Clamping plate 2 (521) is used to directly clamp the steel truss structure. The position and clamping force of clamping plate 2 (521) can be adjusted by rotating knob 3 (523), achieving precise clamping of different parts of the steel truss structure. Knob 3 (523) provides operators with a convenient means of adjusting the clamping force.

[0034] The working principle of this utility model is as follows: First, start the motor 21 located in the middle, so that the bidirectional threaded rod 23 drives the two slide blocks 26 to move. Adjust the position of the slide blocks 26 and the clamping mechanism 4 above according to the length of the main chord of the steel structure truss. Then, place the main chord on the bottom plates 43 distributed on the left and right. Rotate the knob 46 to make the bidirectional threaded rod 45 drive the slider 42 to move, so that the clamping plate 521 is close to the main chord. Then rotate the knob 523 to make the locking bolt 522 drive the clamping plate 521 to further clamp and tighten the main chord. According to the position where the auxiliary rod needs to be welded, start the electric push rod 3 to adjust the height of the clamping mechanism 4. Then, place the auxiliary rod on the base plate 43 distributed at the front and back. Similarly, rotate the knob 46 to make the bidirectional threaded rod 45 drive the slider 42 to move, so that the clamping plate 511 is close to the auxiliary rod. Then, adjust the angle of the clamping plate 511 according to the tilt angle of the auxiliary rod. Finally, rotate the knob 514 to make the locking bolt 513 drive the clamping plate 511 to fit against the surface of the auxiliary rod, clamping and fastening the auxiliary rod.

[0035] During the welding process, after the first auxiliary rod is welded, the clamping assembly 51 can be released to detach it from the auxiliary rod. Then, the electric push rod 3 drives the clamping mechanisms 4 distributed in front and behind to descend, or the electric push rod 3 drives the clamping mechanisms 4 distributed in the left and right to rise. At the same time, the motor 21 drives the slide block 24 to move to the next welding position. The auxiliary rod to be welded is then clamped by the clamping assembly 51. The electric push rod 3 is started again to transport the auxiliary rod to the required welding height for welding. The above steps can be repeated until all auxiliary rods are welded to avoid moving the main chord rod and causing welding misalignment.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steel structure truss welding positioning auxiliary device, characterized by, Includes a base (1), and a drive mechanism (2) is installed on the lower part of the base (1); The drive mechanism (2) includes three motors (21) arranged sequentially from front to back. All three motors (21) are fixedly connected to the lower part of the right side of the base (1). The output ends of the motors (21) located on the front and rear sides are fixedly connected to one-way threaded rods (22). The output end of the motor (21) located in the middle is fixedly connected to a two-way threaded rod (23). The outer periphery of the one-way threaded rod (22) is threadedly connected to a slide block (24). The outer periphery of the two-way threaded rod (23) is threadedly connected to two slide blocks (26) arranged on the left and right sides. Electric push rods (3) are fixedly connected to the upper surfaces of slide one (24) and slide two (26). The telescopic end of the electric push rod (3) is connected to clamping mechanism one (4), and clamping mechanism two (5) is installed on the upper part of clamping mechanism one (4).

2. The steel structural truss welding positioning aid of claim 1, wherein, Limiting plates (25) are fixedly connected to the opposite sides of the two slide blocks (24). The two limiting plates (25) are slidably connected to the lower parts of the front and rear sides of the base (1). Limiting plates (27) are fixedly connected to the front and rear sides of the slide block (26). Limiting plates (27) are slidably connected to the middle part of the inner cavity of the base (1).

3. The steel structure truss welding positioning auxiliary equipment according to claim 1, characterized in that, The clamping mechanism 1 (4) includes a support base (41), which is fixedly connected to the telescopic end of the electric push rod (3). A bidirectional threaded rod 2 (45) is rotatably connected to the middle of the support base (41). A slider (42) is threadedly connected to the outer periphery of the bidirectional threaded rod 2 (45) on the side that is far apart from each other. A base plate (43) is fixedly connected to the upper surface of the slider (42). A support plate (44) is fixedly connected to the side that is far apart from each other of the two base plates (43). A clamping mechanism 2 (5) is movably connected to the upper part of the two support plates (44) located above the same support base (41). A knob 1 (46) is fixedly connected to both ends of the bidirectional threaded rod 2 (45).

4. The steel structure truss welding positioning auxiliary equipment according to claim 3, characterized in that, The clamping mechanism 2 (5) consists of four groups, two of which are clamping components 1 (51) and the other two are clamping components 2 (52). The two clamping components 1 (51) are movably connected to the upper parts of the two sets of support seats (41) distributed in front and behind, and the two clamping components 2 (52) are movably connected to the upper parts of the two sets of support seats (41) distributed in the left and right.

5. The steel structure truss welding positioning auxiliary equipment according to claim 4, characterized in that, The clamping assembly 1 (51) includes two locking bolts 1 (513) distributed on the left and right. The outer periphery of the locking bolts 1 (513) is threadedly connected to the upper part of the support plate (44). A ball connecting rod (512) is fixedly connected to the opposite side of the two locking bolts 1 (513). A clamping plate 1 (511) is rotatably connected to the opposite side of the outer periphery of the two ball connecting rods (512). A knob 2 (514) is fixedly connected to the side of the locking bolts 1 (513) away from the ball connecting rod (512).

6. The steel structure truss welding positioning auxiliary equipment according to claim 4, characterized in that, The clamping assembly 2 (52) includes two locking bolts 2 (522) distributed front and rear. The outer circumference of the locking bolts 2 (522) is threadedly connected to the upper part of the support plate (44). The two locking bolts 2 (522) are fixedly connected to the opposite side of each other with a clamping plate 2 (521). The locking bolts 2 (522) away from the clamping plate 2 (521) are fixedly connected to a knob 3 (523).