Welding tool for truss
By combining multiple identical welding molds and fixing blocks in the welding fixture, along with the quick connection of the snap-fit blocks and snap-fits, and the cooperation between the snap-fit slots, bushings and the central shaft, the problems of cumbersome assembly, insufficient positioning accuracy and poor adaptability of traditional welding fixtures in truss manufacturing are solved. This achieves precise positioning and flexible adjustment of the truss, and improves the accuracy and reliability of welding operations.
Patent Information
- Application Number
- CN202520242751.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Traditional welding fixtures suffer from problems such as cumbersome assembly, insufficient positioning accuracy, and poor adaptability in truss manufacturing. They are difficult to adapt to truss structures of different sizes and shapes, and are inconvenient to disassemble and reassemble.
A welding fixture for trusses was designed, which uses multiple welding molds and fixing blocks with the same structure, combined with snap-fit blocks, slots, bushings and central shafts. The fixture achieves precise positioning and flexible adjustment of the truss through limit blocks and nuts, ensuring a stable connection in both horizontal and vertical directions.
It improves the accuracy and reliability of welding operations, adapts to the welding requirements of different truss structures, facilitates disassembly and reassembly, and enhances the versatility and adaptability of tooling.
Smart Images

Figure CN223734244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of escalator truss, concretely is a welding tool for truss. BACKGROUND
[0002] In the manufacturing process of truss structure, welding is a crucial process link, and the traditional welding tool often has problems such as complicated assembly, insufficient positioning accuracy and poor adaptability, which greatly limits the welding efficiency and workpiece quality. In order to solve these problems, the industry is constantly exploring and innovating to develop a kind of welding tool that is efficient and flexible.
[0003] For example, a kind of adjustable escalator truss 3D welding tool (patent announcement number CN210334901U) is proposed in Chinese patent, the tool realizes three-dimensional positioning and adjustment of escalator truss through a series of adjusting mechanisms, when using, operating personnel can make corresponding adjustment to the tool according to the welding demand, to ensure the stability and precision of truss in the welding process, however, although the above-mentioned patent solves the positioning and adjustment problem of truss welding to some extent, it still has certain limitations, specifically, the patent mainly focuses on the specific structure of escalator truss, its adjusting mechanism and connection mode are relatively fixed, it is difficult to adapt to truss structures of different sizes and shapes, in addition, the patent also has certain inconvenience in disassembly and recombination, which limits its application in diversified welding demand.
[0004] In order to solve the above problems, we propose a kind of welding tool for truss. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a kind of welding tool for truss, solves the above-mentioned problems.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of welding tool for truss, including base, the upper surface both sides of base are fixedly installed multiple support rods for supporting, the upper end of multiple support rods is fixedly installed with the welding frame for fixing, the truss is set between two welding frames, further comprising:
[0007] Connecting assembly, installed in the interior of welding frame, is used to the structure for fixing truss.
[0008] Preferably, the upper end of the truss is composed of multiple upper trusses for connection, the central part of the truss is composed of multiple connecting rods for support, and the lower end of the truss is composed of multiple lower trusses for adjusting connection.
[0009] Preferably, the rear end surface of the upper truss is fixedly installed with a clamping block for clamping, and the front end of the upper truss is provided with a clamping groove matched with the clamping block.
[0010] Preferably, the lower truss front end is fixedly installed with blocks for support on both sides, and the center of the two blocks is fixedly installed with a center shaft for installation, the lower truss rear end is fixedly installed with a shaft sleeve for connection, and the center of the shaft sleeve is provided with a circular groove matched with the center shaft.
[0011] Preferably, the welding frame is composed of a plurality of welding dies with the same structure, the rear end of the welding die is provided with a square groove, and the front end of the corresponding welding die is fixedly installed with a fixed block matched with the square groove.
[0012] Preferably, the lower truss is arranged in a corresponding manner with the welding die, and the shape of the welding die is arranged to be the same as that of the lower truss.
[0013] Preferably, the connecting assembly comprises a limiting block, a fixed rod and a nut, the center of the welding die is provided with a through groove, the limiting block is installed inside the through groove, the inner end of the limiting block is fixedly installed with a fixed rod for connection, the other end of the fixed rod penetrates the surface of the shaft sleeve, and the inner end of the fixed rod is movably installed with a nut for fixation at the connection position of the shaft sleeve.
[0014] Compared with the prior art, the welding tool for truss has the following beneficial effects:
[0015] 1. The welding tool for truss, the welding frame is composed of a plurality of welding dies with the same structure, precise assembly can be realized through the mutual cooperation of the square groove and the fixed block, the size of the lower truss and the welding die is arranged to be the same, the welding frame can be assembled according to requirements, it is more convenient to adjust the welding workpiece, thereby the versatility and adaptability of the tool are improved, the limiting block, the fixed rod and the nut in the connecting assembly cooperate to realize the fixation of the truss in the vertical direction, after welding is completed, the tool can be easily disassembled and reassembled by loosening the nut, the upper truss is quickly connected through the clamping block and the clamping groove, stable connection and precise positioning are realized, the lower truss is flexibly adjusted and stably connected through the cooperation of the shaft sleeve and the center shaft and the support of the block, the precise positioning of the truss in the horizontal and vertical directions is ensured, and the accuracy and reliability of the welding operation are improved.
[0016] 2. The welding tool for truss, the upper truss is quickly connected through the clamping block and the clamping groove, stable connection and precise positioning are realized, the lower truss is flexibly adjusted and stably connected through the cooperation of the shaft sleeve and the center shaft and the support of the block, the precise positioning of the truss in the horizontal and vertical directions is ensured, and the accuracy and reliability of the welding operation are improved, the angle and position between the lower truss and the welding frame can be conveniently changed by rotating the shaft sleeve and adjusting the position thereof, thereby the welding requirements of different truss structures are adapted. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1The utility model discloses a structure schematic drawing.
[0018] Fig. 2 The utility model discloses a connecting assembly schematic drawing.
[0019] Fig. 3 The utility model discloses a lower truss connecting structure schematic drawing.
[0020] In the drawing: 1, base; 2, support rod; 3, welding frame; 4, truss; 5, lower truss; 6, upper truss; 7, clamping block; 8, clamping groove; 9, connecting rod; 10, shaft sleeve; 11, limiting block; 12, fixed rod; 13, square; 14, central shaft; 15, welding die; 16, square groove; 17, nut. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by the ordinary skilled in the art without creative work based on the embodiments in the utility model belong to the range of the utility model protection.
[0022] Please refer to Figs. 1-3 A welding tool for truss, including base 1, the upper surface both sides of base 1 are fixedly installed multiple support rods 2 for supporting, the upper end of multiple support rods 2 is fixedly installed with welding frame 3 for fixing, the between two welding frames 3 is provided truss 4, still include: connecting assembly, install in the inside of welding frame 3, for the structure of fixing truss 4, make welding frame 3 with the lower end of truss 4 connect fixedly, welding die 15 and the size position of lower truss 5 are identical, corresponding each welding die 15 and corresponding lower truss 5 inside are installed with connecting assembly.
[0023] Further, the upper end of the truss 4 is composed of a plurality of upper trusses 6 for connection, the central part of the truss 4 is composed of a plurality of connecting rods 9 for support, and the lower end of the truss 4 is composed of a plurality of lower trusses 5 for adjusting connection.
[0024] Further, the rear end surface of the upper truss 6 is fixedly installed with a clamping block 7 for clamping, and the front end of the upper truss 6 is provided with a clamping groove 8 matched with the clamping block 7, the clamping block 7 is installed inside the clamping groove 8, and a plurality of upper trusses 6 are positioned and installed.
[0025] Further, the two sides of the front end of the lower truss 5 are fixedly provided with blocks 13 for supporting, the centers of the two blocks 13 are fixedly provided with center shafts 14 for mounting, the rear end of the lower truss 5 is fixedly provided with a shaft sleeve 10 for connecting, and the center of the shaft sleeve 10 is provided with a circular groove matched with the center shaft 14. By sleeving the shaft sleeve 10 on the center shaft 14 at the front end of the other lower truss 5, the two lower trusses 5 are connected.
[0026] Further, the welding frame 3 is composed of a plurality of welding dies 15 of the same structure, the rear end of the welding die 15 is provided with a square groove 16, and the front end of the welding die 15 is fixedly provided with a fixed block matched with the square groove 16. Each welding die is designed with a square groove 16 and a fixed block, and through the cooperation of them, the precise assembly of the welding frame 3 can be realized, and the accurate position of the truss 4 in the horizontal direction is ensured.
[0027] Further, the lower truss 5 is arranged in correspondence with the welding die 15, and the shape of the welding die 15 is the same as that of the lower truss 5. The size of the lower truss 5 is the same as that of the welding die 15, and the welding die 15 can be installed according to the required length of the lower truss 5.
[0028] Further, the connecting assembly includes a limiting block 11, a fixed rod 12 and a nut 17. The center of the welding die 15 is provided with a through groove, the limiting block 11 is installed in the through groove, the inner end of the limiting block 11 is fixedly provided with a fixed rod 12 for connecting, the other end of the fixed rod 12 penetrates the surface of the shaft sleeve 10, and the inner end of the fixed rod 12 movably provided with a nut 17 for fixing at the connecting position of the shaft sleeve 10. The limiting block 11 in the connecting assembly is installed in the through groove of the welding die 15, which limits the transverse movement of the truss. At the same time, the fixed rod 12 penetrates the surface of the shaft sleeve 10 and cooperates with the nut 17 to realize the fixation of the truss in the vertical direction.
[0029] Structure description: 1, base: the base is the basic support structure of the whole truss welding tool, which is designed to be firm and stable, usually installed on the ground or workbench, and the surface is flat, which is convenient for stable installation of support rods and other components. The stability of the base ensures the stability and safety of the whole tool during work.
[0030] 2, support rod: the support rod is a key component connecting the base and the welding frame, and its number is determined according to actual needs. It is usually installed vertically on the base. The design of the support rod takes into account the strength and rigidity to ensure the stability of the welding frame in the vertical direction. The upper end of the support rod is connected with the welding frame to form a stable support system.
[0031] 3. Welding frame: The welding frame is the main structure in the tooling for supporting and fixing the truss. It is composed of multiple identical welding dies. The welding dies are precisely assembled through the cooperation of square grooves and fixing blocks, forming a welding platform that adapts to different truss sizes. The design of the welding frame facilitates adjustment and expansion to meet diverse welding needs.
[0032] 4. Truss: The truss is the workpiece to be welded, usually composed of multiple members and nodes, forming a stable frame structure. During the welding process, the truss is placed on the welding frame and fixed and positioned through the connecting components in the tooling.
[0033] 5. Lower truss: The lower truss is a part of the truss structure, which realizes flexible adjustment and stable connection through the cooperation of the shaft sleeve and the center shaft, as well as the support of the square block. The design of the lower truss enables precise positioning of the truss in both horizontal and vertical directions, improving the accuracy of welding operations.
[0034] 6. Lower truss: The lower truss is a part of the truss structure, which realizes flexible adjustment and stable connection through the cooperation of the shaft sleeve and the center shaft, as well as the support of the square block. The design of the lower truss enables precise positioning of the truss in both horizontal and vertical directions, improving the accuracy of welding operations.
[0035] 7. Clamping block: The clamping block is a protruding structure installed on the upper truss, which matches the shape and size of the clamping groove, used to realize the quick connection between the upper truss and the welding frame. The design of the clamping block makes the connection process more convenient and efficient, improving work efficiency.
[0036] 8. Clamping groove: The clamping groove is a recess structure on the welding frame for receiving the clamping block, which matches the shape and size of the clamping block. The design of the clamping groove ensures the stable connection between the upper truss and the welding frame, while facilitating disassembly and reassembly.
[0037] 9. Connecting rod: The connecting rod is used to connect the upper truss and the lower truss, ensuring the stability of the entire truss structure. The design of the connecting rod takes into account strength and rigidity to adapt to various forces and vibrations during the welding process.
[0038] 10. Shaft sleeve: The shaft sleeve is a rotating component installed on the lower truss, which cooperates with the center shaft to realize flexible adjustment and stable connection between the lower truss and the welding frame. The design of the shaft sleeve enables the lower truss to adjust the angle and position according to actual needs.
[0039] 11. Limiting block: The limiting block is a protruding structure installed on the welding die, used to limit the movement of the truss in the horizontal direction. The design of the limiting block ensures the stability of the truss during the welding process, preventing deviation caused by vibration or external force.
[0040] 12. Fixed rod: The fixed rod passes through the surface of the shaft sleeve and cooperates with the nut to achieve the fixation of the truss in the vertical direction. The design of the fixed rod takes into account the strength and rigidity to ensure the stability of the truss during the welding process.
[0041] 13. Block: The block is a supporting structure installed on the lower truss to enhance the stability and rigidity of the lower truss. The design of the block takes into account the cooperation with the central shaft to ensure the stability and accuracy of the lower truss during the adjustment process.
[0042] 14. Central shaft: The central shaft is a key component connecting the lower truss and the shaft sleeve. Its design takes into account the strength and rigidity to adapt to various forces and vibrations during the adjustment process of the lower truss. The cooperation between the central shaft and the shaft sleeve achieves flexible adjustment and stable connection of the lower truss.
[0043] 15. Welding mold: The welding mold is a basic unit on the welding frame, composed of a square groove and a fixed block, used to achieve precise assembly of the welding frame. The design of the welding mold takes into account modularity and universality to adapt to the welding needs of different truss structures.
[0044] 16. Square groove: The square groove is a recess structure on the welding mold, used to receive the fixed block to achieve precise assembly between the welding molds. The design of the square groove takes into account the cooperation with the fixed block to ensure the stability and accuracy of the welding frame.
[0045] 17. Nut: The nut cooperates with the fixed rod to achieve the fixation of the truss in the vertical direction. The design of the nut takes into account the thread cooperation with the fixed rod to ensure the stability and reliability of the connection.
[0046] Usage instructions
[0047] Working principle: the base 1 is installed at the lowermost end, the support rod 2 is fixed on the base 1 according to the installation requirement, the support rod 2 is connected with the base and the welding frame 3 vertically, ensuring the stability of the welding frame in the vertical direction, preventing the deviation caused by gravity or vibration generated during welding, the welding frame 3 is composed of a plurality of welding dies 15 with the same structure, each welding die is designed with a square groove 16 and a fixing block, through their mutual cooperation, the precise assembly of the welding frame 3 can be realized, ensuring the accurate position of the truss 4 in the horizontal direction, the upper truss 6 is quickly connected through the clamping block 7 and the clamping groove 8, realizing the stable connection of the upper part of the truss, and ensuring the accuracy of the connection, the lower truss 5 is connected with the center shaft 14 through the shaft sleeve 10, and the square block 13 is supported, realizing the flexible adjustment and stable connection of the lower part of the truss, ensuring the accurate positioning of the truss in the vertical direction, the upper truss 6 is fixed with the lower truss 5 through the connecting rod 9, by rotating the shaft sleeve 10 and adjusting its position, the angle and position between the lower truss 5 and the welding frame 3 can be easily changed, so as to adapt to the welding requirement of different truss structures, the welding frame 3 and the modified lower truss 5 are connected through the connecting assembly, the limiting block 11 in the connecting assembly is installed in the through groove of the welding die 15, limiting the transverse movement of the truss, and the fixing rod 12 penetrates the surface of the shaft sleeve 10 and cooperates with the nut 17, realizing the fixation of the truss in the vertical direction, after welding, by loosening the nut 17, the tooling can be easily disassembled and reassembled, facilitating the subsequent welding operation.
[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A welding tool for truss, comprising a base (1), a plurality of support rods (2) for support are fixedly installed on both sides of the upper surface of the base (1), a welding frame (3) for fixation is fixedly installed on the upper end of the plurality of support rods (2), a truss (4) is arranged between the two welding frames (3), characterized in that, Also include: The connecting assembly is installed in the inside of the welding frame (3), which is used for the structure of the truss (4) fixing; The connecting assembly includes a limiting block (11), a fixed rod (12) and a nut (17), a through slot is arranged at the center of the welding die (15), the limiting block (11) is installed in the through slot, the limiting block (11) is fixedly installed with a fixed rod (12) for connection at the inner end, the other end of the fixed rod (12) penetrates the surface of the shaft sleeve (10), and the nut (17) for fixing is movably installed at the connecting part of the inner end of the fixed rod (12) and the shaft sleeve (10).
2. The welding fixture of claim 1, wherein: The upper end of the truss (4) is composed of a plurality of upper trusses (6) for connection, the central part of the truss (4) is composed of a plurality of connecting rods (9) for support, and the lower end of the truss (4) is composed of a plurality of lower trusses (5) for adjusting connection.
3. The welding fixture of claim 2, wherein: The rear end surface of the upper truss (6) is fixedly installed with a clamping block (7) for clamping, and the front end of the upper truss (6) is provided with a clamping groove (8) matched with the clamping block (7).
4. The welding fixture of claim 2, wherein: The front end of the lower truss (5) is fixedly installed with a square block (13) for support on both sides, and the center of the two square blocks (13) is fixedly installed with a center shaft (14) for installation, the rear end of the lower truss (5) is fixedly installed with a shaft sleeve (10) for connection, and the center of the shaft sleeve (10) is provided with a circular groove matched with the center shaft (14).
5. The welding fixture of claim 2, wherein: The welding frame (3) is composed of a plurality of welding dies (15) with the same structure, the rear end of the welding die (15) is provided with a square groove (16), and the front end of the corresponding welding die (15) is fixedly installed with a fixed block matched with the square groove (16).
6. The welding fixture of claim 5, wherein: The lower truss (5) is arranged in a corresponding manner with the welding die (15), and the shape of the welding die (15) is arranged the same as the lower truss (5).
Citation Information
Patent Citations
Adjustable 3D welding tool for escalator truss
CN210334901U